From 877a55979c189c590e819a61cbbe2b7947875f17 Mon Sep 17 00:00:00 2001 From: John Hughes Date: Wed, 4 Nov 2009 19:01:22 +0100 Subject: [SCSI] ses: show devices for enclosures with no page 7 enclosure page 7 gives us the "pretty" names of the enclosure slots. Without a page 7, we can still use the enclosure code as long as we make up numeric names for the slots. Unfortunately, the current code fails to add any devices because the check for page 10 is in the wrong place if we have no page 7. Fix it so that devices show up even if the enclosure has no page 7. Cc: stable@kernel.org Signed-off-by: James Bottomley diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 7f5a6a8..3b00e90 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -390,9 +390,9 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, len = (desc_ptr[2] << 8) + desc_ptr[3]; /* skip past overall descriptor */ desc_ptr += len + 4; - if (ses_dev->page10) - addl_desc_ptr = ses_dev->page10 + 8; } + if (ses_dev->page10) + addl_desc_ptr = ses_dev->page10 + 8; type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; components = 0; for (i = 0; i < types; i++, type_ptr += 4) { -- cgit v0.10.2 From 523f3c80bc41d663d5b35c0cd6ce0fad7f3e7188 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Fri, 4 Feb 2011 15:24:14 +0300 Subject: [SCSI] scsi_transport_iscsi: make priv_sess file writeable only by root Signed-off-by: Vasiliy Kulikov Acked-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index b421839..3fd16d7 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1917,7 +1917,7 @@ store_priv_session_##field(struct device *dev, \ #define iscsi_priv_session_rw_attr(field, format) \ iscsi_priv_session_attr_show(field, format) \ iscsi_priv_session_attr_store(field) \ -static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUGO, \ +static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO | S_IWUSR, \ show_priv_session_##field, \ store_priv_session_##field) iscsi_priv_session_rw_attr(recovery_tmo, "%d"); -- cgit v0.10.2 From 463b8977ecebf8cf590c33191d43ea0b059381c6 Mon Sep 17 00:00:00 2001 From: HighPoint Linux Team Date: Wed, 23 Feb 2011 16:28:44 +0800 Subject: [SCSI] mvsas: Add support for HighPoint RR27xx series HBA This patch is to add support for HighPoint RR27xx SAS/SATA HBA which is based on Marvell 88SE9480 chipset. Signed-off-by: HighPoint Linux Team Signed-off-by: James Bottomley diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 19ad34f..938d045 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -663,6 +663,13 @@ static struct pci_device_id __devinitdata mvs_pci_table[] = { { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 }, { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 }, { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 }, + { PCI_VDEVICE(TTI, 0x2710), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2720), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2721), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2722), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2740), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2744), chip_9480 }, + { PCI_VDEVICE(TTI, 0x2760), chip_9480 }, { } /* terminate list */ }; -- cgit v0.10.2 From d1e12de804f9d8ad114786ca7c2ce593cba79891 Mon Sep 17 00:00:00 2001 From: "Krishnasamy, Somasundaram" Date: Mon, 28 Feb 2011 18:13:22 -0500 Subject: [SCSI] ses: Avoid kernel panic when lun 0 is not mapped During device discovery, scsi mid layer sends INQUIRY command to LUN 0. If the LUN 0 is not mapped to host, it creates a temporary scsi_device with LUN id 0 and sends REPORT_LUNS command to it. After the REPORT_LUNS succeeds, it walks through the LUN table and adds each LUN found to sysfs. At the end of REPORT_LUNS lun table scan, it will delete the temporary scsi_device of LUN 0. When scsi devices are added to sysfs, it calls add_dev function of all the registered class interfaces. If ses driver has been registered, ses_intf_add() of ses module will be called. This function calls scsi_device_enclosure() to check the inquiry data for EncServ bit. Since inquiry was not allocated for temporary LUN 0 scsi_device, it will cause NULL pointer exception. To fix the problem, sdev->inquiry is checked for NULL before reading it. Signed-off-by: Somasundaram Krishnasamy Signed-off-by: Babu Moger Cc: stable@kernel.org Signed-off-by: James Bottomley diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index f171c65..2d3ec50 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -462,7 +462,7 @@ static inline int scsi_device_qas(struct scsi_device *sdev) } static inline int scsi_device_enclosure(struct scsi_device *sdev) { - return sdev->inquiry[6] & (1<<6); + return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1; } static inline int scsi_device_protection(struct scsi_device *sdev) -- cgit v0.10.2 From 5a6f133eea2d0b4f8f75367b803fef0f03acf268 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:05:35 -0500 Subject: [SCSI] lpfc 8.3.22: Add new mailbox command and new BSG fix - Add new Queue Create Mailbox version support - Make lpfc_bsg_wake_mbox_wait routine check the mailboxes job reference before using it. Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index 0dd43bb..5a4a2f3 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -2479,16 +2479,18 @@ lpfc_bsg_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) from = (uint8_t *)dd_data->context_un.mbox.mb; job = dd_data->context_un.mbox.set_job; - size = job->reply_payload.payload_len; - job->reply->reply_payload_rcv_len = - sg_copy_from_buffer(job->reply_payload.sg_list, - job->reply_payload.sg_cnt, - from, size); - job->reply->result = 0; + if (job) { + size = job->reply_payload.payload_len; + job->reply->reply_payload_rcv_len = + sg_copy_from_buffer(job->reply_payload.sg_list, + job->reply_payload.sg_cnt, + from, size); + job->reply->result = 0; + job->dd_data = NULL; + job->job_done(job); + } dd_data->context_un.mbox.set_job = NULL; - job->dd_data = NULL; - job->job_done(job); /* need to hold the lock until we call job done to hold off * the timeout handler returning to the midlayer while * we are stillprocessing the job diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index c7178d6..b42b699 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -711,21 +711,27 @@ struct lpfc_sli4_cfg_mhdr { union lpfc_sli4_cfg_shdr { struct { uint32_t word6; -#define lpfc_mbox_hdr_opcode_SHIFT 0 -#define lpfc_mbox_hdr_opcode_MASK 0x000000FF -#define lpfc_mbox_hdr_opcode_WORD word6 -#define lpfc_mbox_hdr_subsystem_SHIFT 8 -#define lpfc_mbox_hdr_subsystem_MASK 0x000000FF -#define lpfc_mbox_hdr_subsystem_WORD word6 -#define lpfc_mbox_hdr_port_number_SHIFT 16 -#define lpfc_mbox_hdr_port_number_MASK 0x000000FF -#define lpfc_mbox_hdr_port_number_WORD word6 -#define lpfc_mbox_hdr_domain_SHIFT 24 -#define lpfc_mbox_hdr_domain_MASK 0x000000FF -#define lpfc_mbox_hdr_domain_WORD word6 +#define lpfc_mbox_hdr_opcode_SHIFT 0 +#define lpfc_mbox_hdr_opcode_MASK 0x000000FF +#define lpfc_mbox_hdr_opcode_WORD word6 +#define lpfc_mbox_hdr_subsystem_SHIFT 8 +#define lpfc_mbox_hdr_subsystem_MASK 0x000000FF +#define lpfc_mbox_hdr_subsystem_WORD word6 +#define lpfc_mbox_hdr_port_number_SHIFT 16 +#define lpfc_mbox_hdr_port_number_MASK 0x000000FF +#define lpfc_mbox_hdr_port_number_WORD word6 +#define lpfc_mbox_hdr_domain_SHIFT 24 +#define lpfc_mbox_hdr_domain_MASK 0x000000FF +#define lpfc_mbox_hdr_domain_WORD word6 uint32_t timeout; uint32_t request_length; - uint32_t reserved9; + uint32_t word9; +#define lpfc_mbox_hdr_version_SHIFT 0 +#define lpfc_mbox_hdr_version_MASK 0x000000FF +#define lpfc_mbox_hdr_version_WORD word9 +#define LPFC_Q_CREATE_VERSION_2 2 +#define LPFC_Q_CREATE_VERSION_1 1 +#define LPFC_Q_CREATE_VERSION_0 0 } request; struct { uint32_t word6; @@ -917,9 +923,12 @@ struct cq_context { #define LPFC_CQ_CNT_512 0x1 #define LPFC_CQ_CNT_1024 0x2 uint32_t word1; -#define lpfc_cq_eq_id_SHIFT 22 +#define lpfc_cq_eq_id_SHIFT 22 /* Version 0 Only */ #define lpfc_cq_eq_id_MASK 0x000000FF #define lpfc_cq_eq_id_WORD word1 +#define lpfc_cq_eq_id_2_SHIFT 0 /* Version 2 Only */ +#define lpfc_cq_eq_id_2_MASK 0x0000FFFF +#define lpfc_cq_eq_id_2_WORD word1 uint32_t reserved0; uint32_t reserved1; }; @@ -929,6 +938,9 @@ struct lpfc_mbx_cq_create { union { struct { uint32_t word0; +#define lpfc_mbx_cq_create_page_size_SHIFT 16 /* Version 2 Only */ +#define lpfc_mbx_cq_create_page_size_MASK 0x000000FF +#define lpfc_mbx_cq_create_page_size_WORD word0 #define lpfc_mbx_cq_create_num_pages_SHIFT 0 #define lpfc_mbx_cq_create_num_pages_MASK 0x0000FFFF #define lpfc_mbx_cq_create_num_pages_WORD word0 @@ -969,7 +981,7 @@ struct wq_context { struct lpfc_mbx_wq_create { struct mbox_header header; union { - struct { + struct { /* Version 0 Request */ uint32_t word0; #define lpfc_mbx_wq_create_num_pages_SHIFT 0 #define lpfc_mbx_wq_create_num_pages_MASK 0x0000FFFF @@ -979,6 +991,23 @@ struct lpfc_mbx_wq_create { #define lpfc_mbx_wq_create_cq_id_WORD word0 struct dma_address page[LPFC_MAX_WQ_PAGE]; } request; + struct { /* Version 1 Request */ + uint32_t word0; /* Word 0 is the same as in v0 */ + uint32_t word1; +#define lpfc_mbx_wq_create_page_size_SHIFT 0 +#define lpfc_mbx_wq_create_page_size_MASK 0x000000FF +#define lpfc_mbx_wq_create_page_size_WORD word1 +#define lpfc_mbx_wq_create_wqe_size_SHIFT 8 +#define lpfc_mbx_wq_create_wqe_size_MASK 0x0000000F +#define lpfc_mbx_wq_create_wqe_size_WORD word1 +#define LPFC_WQ_WQE_SIZE_64 0x5 +#define LPFC_WQ_WQE_SIZE_128 0x6 +#define lpfc_mbx_wq_create_wqe_count_SHIFT 16 +#define lpfc_mbx_wq_create_wqe_count_MASK 0x0000FFFF +#define lpfc_mbx_wq_create_wqe_count_WORD word1 + uint32_t word2; + struct dma_address page[LPFC_MAX_WQ_PAGE-1]; + } request_1; struct { uint32_t word0; #define lpfc_mbx_wq_create_q_id_SHIFT 0 @@ -1007,13 +1036,22 @@ struct lpfc_mbx_wq_destroy { #define LPFC_DATA_BUF_SIZE 2048 struct rq_context { uint32_t word0; -#define lpfc_rq_context_rq_size_SHIFT 16 -#define lpfc_rq_context_rq_size_MASK 0x0000000F -#define lpfc_rq_context_rq_size_WORD word0 +#define lpfc_rq_context_rqe_count_SHIFT 16 /* Version 0 Only */ +#define lpfc_rq_context_rqe_count_MASK 0x0000000F +#define lpfc_rq_context_rqe_count_WORD word0 #define LPFC_RQ_RING_SIZE_512 9 /* 512 entries */ #define LPFC_RQ_RING_SIZE_1024 10 /* 1024 entries */ #define LPFC_RQ_RING_SIZE_2048 11 /* 2048 entries */ #define LPFC_RQ_RING_SIZE_4096 12 /* 4096 entries */ +#define lpfc_rq_context_rqe_count_1_SHIFT 16 /* Version 1 Only */ +#define lpfc_rq_context_rqe_count_1_MASK 0x0000FFFF +#define lpfc_rq_context_rqe_count_1_WORD word0 +#define lpfc_rq_context_rqe_size_SHIFT 8 /* Version 1 Only */ +#define lpfc_rq_context_rqe_size_MASK 0x0000000F +#define lpfc_rq_context_rqe_size_WORD word0 +#define lpfc_rq_context_page_size_SHIFT 0 /* Version 1 Only */ +#define lpfc_rq_context_page_size_MASK 0x000000FF +#define lpfc_rq_context_page_size_WORD word0 uint32_t reserved1; uint32_t word2; #define lpfc_rq_context_cq_id_SHIFT 16 @@ -1022,7 +1060,7 @@ struct rq_context { #define lpfc_rq_context_buf_size_SHIFT 0 #define lpfc_rq_context_buf_size_MASK 0x0000FFFF #define lpfc_rq_context_buf_size_WORD word2 - uint32_t reserved3; + uint32_t buffer_size; /* Version 1 Only */ }; struct lpfc_mbx_rq_create { @@ -1062,16 +1100,16 @@ struct lpfc_mbx_rq_destroy { struct mq_context { uint32_t word0; -#define lpfc_mq_context_cq_id_SHIFT 22 +#define lpfc_mq_context_cq_id_SHIFT 22 /* Version 0 Only */ #define lpfc_mq_context_cq_id_MASK 0x000003FF #define lpfc_mq_context_cq_id_WORD word0 -#define lpfc_mq_context_count_SHIFT 16 -#define lpfc_mq_context_count_MASK 0x0000000F -#define lpfc_mq_context_count_WORD word0 -#define LPFC_MQ_CNT_16 0x5 -#define LPFC_MQ_CNT_32 0x6 -#define LPFC_MQ_CNT_64 0x7 -#define LPFC_MQ_CNT_128 0x8 +#define lpfc_mq_context_ring_size_SHIFT 16 +#define lpfc_mq_context_ring_size_MASK 0x0000000F +#define lpfc_mq_context_ring_size_WORD word0 +#define LPFC_MQ_RING_SIZE_16 0x5 +#define LPFC_MQ_RING_SIZE_32 0x6 +#define LPFC_MQ_RING_SIZE_64 0x7 +#define LPFC_MQ_RING_SIZE_128 0x8 uint32_t word1; #define lpfc_mq_context_valid_SHIFT 31 #define lpfc_mq_context_valid_MASK 0x00000001 @@ -1105,9 +1143,12 @@ struct lpfc_mbx_mq_create_ext { union { struct { uint32_t word0; -#define lpfc_mbx_mq_create_ext_num_pages_SHIFT 0 -#define lpfc_mbx_mq_create_ext_num_pages_MASK 0x0000FFFF -#define lpfc_mbx_mq_create_ext_num_pages_WORD word0 +#define lpfc_mbx_mq_create_ext_num_pages_SHIFT 0 +#define lpfc_mbx_mq_create_ext_num_pages_MASK 0x0000FFFF +#define lpfc_mbx_mq_create_ext_num_pages_WORD word0 +#define lpfc_mbx_mq_create_ext_cq_id_SHIFT 16 /* Version 1 Only */ +#define lpfc_mbx_mq_create_ext_cq_id_MASK 0x0000FFFF +#define lpfc_mbx_mq_create_ext_cq_id_WORD word0 uint32_t async_evt_bmap; #define lpfc_mbx_mq_create_ext_async_evt_link_SHIFT LPFC_TRAILER_CODE_LINK #define lpfc_mbx_mq_create_ext_async_evt_link_MASK 0x00000001 diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 2ee0374..84234a4 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -10403,7 +10403,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, if (!phba->sli4_hba.pc_sli4_params.supported) hw_page_size = SLI4_PAGE_SIZE; - mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) return -ENOMEM; @@ -10413,11 +10412,22 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, LPFC_MBOX_OPCODE_CQ_CREATE, length, LPFC_SLI4_MBX_EMBED); cq_create = &mbox->u.mqe.un.cq_create; + shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, cq->page_count); bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); - bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.cqv); + if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) { + bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, + (PAGE_SIZE/SLI4_PAGE_SIZE)); + bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context, + eq->queue_id); + } else { + bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, + eq->queue_id); + } switch (cq->entry_count) { default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -10449,7 +10459,6 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10515,20 +10524,20 @@ lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq, bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); switch (mq->entry_count) { case 16: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_16); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_16); break; case 32: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_32); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_32); break; case 64: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_64); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_64); break; case 128: - bf_set(lpfc_mq_context_count, &mq_create->u.request.context, - LPFC_MQ_CNT_128); + bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context, + LPFC_MQ_RING_SIZE_128); break; } list_for_each_entry(dmabuf, &mq->page_list, list) { @@ -10586,6 +10595,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, length, LPFC_SLI4_MBX_EMBED); mq_create_ext = &mbox->u.mqe.un.mq_create_ext; + shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request, mq->page_count); bf_set(lpfc_mbx_mq_create_ext_async_evt_link, @@ -10598,9 +10608,15 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, &mq_create_ext->u.request, 1); bf_set(lpfc_mbx_mq_create_ext_async_evt_sli, &mq_create_ext->u.request, 1); - bf_set(lpfc_mq_context_cq_id, - &mq_create_ext->u.request.context, cq->queue_id); bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.mqv); + if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1) + bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request, + cq->queue_id); + else + bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context, + cq->queue_id); switch (mq->entry_count) { default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, @@ -10610,20 +10626,24 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, return -EINVAL; /* otherwise default to smallest count (drop through) */ case 16: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_16); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_16); break; case 32: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_32); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_32); break; case 64: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_64); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_64); break; case 128: - bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, - LPFC_MQ_CNT_128); + bf_set(lpfc_mq_context_ring_size, + &mq_create_ext->u.request.context, + LPFC_MQ_RING_SIZE_128); break; } list_for_each_entry(dmabuf, &mq->page_list, list) { @@ -10634,7 +10654,6 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, putPaddrHigh(dmabuf->phys); } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); - shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create_ext->u.response); if (rc != MBX_SUCCESS) { @@ -10711,6 +10730,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, uint32_t shdr_status, shdr_add_status; union lpfc_sli4_cfg_shdr *shdr; uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; + struct dma_address *page; if (!phba->sli4_hba.pc_sli4_params.supported) hw_page_size = SLI4_PAGE_SIZE; @@ -10724,20 +10744,42 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, length, LPFC_SLI4_MBX_EMBED); wq_create = &mbox->u.mqe.un.wq_create; + shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, wq->page_count); bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, cq->queue_id); + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.wqv); + if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1, + wq->entry_count); + switch (wq->entry_size) { + default: + case 64: + bf_set(lpfc_mbx_wq_create_wqe_size, + &wq_create->u.request_1, + LPFC_WQ_WQE_SIZE_64); + break; + case 128: + bf_set(lpfc_mbx_wq_create_wqe_size, + &wq_create->u.request_1, + LPFC_WQ_WQE_SIZE_128); + break; + } + bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1, + (PAGE_SIZE/SLI4_PAGE_SIZE)); + page = wq_create->u.request_1.page; + } else { + page = wq_create->u.request.page; + } list_for_each_entry(dmabuf, &wq->page_list, list) { memset(dmabuf->virt, 0, hw_page_size); - wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = - putPaddrLow(dmabuf->phys); - wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = - putPaddrHigh(dmabuf->phys); + page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys); + page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys); } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10815,37 +10857,51 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length, LPFC_SLI4_MBX_EMBED); rq_create = &mbox->u.mqe.un.rq_create; - switch (hrq->entry_count) { - default: - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "2535 Unsupported RQ count. (%d)\n", - hrq->entry_count); - if (hrq->entry_count < 512) - return -EINVAL; - /* otherwise default to smallest count (drop through) */ - case 512: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_512); - break; - case 1024: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_1024); - break; - case 2048: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_2048); - break; - case 4096: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_4096); - break; + shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.rqv); + if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_rq_context_rqe_count_1, + &rq_create->u.request.context, + hrq->entry_count); + rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE; + } else { + switch (hrq->entry_count) { + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2535 Unsupported RQ count. (%d)\n", + hrq->entry_count); + if (hrq->entry_count < 512) + return -EINVAL; + /* otherwise default to smallest count (drop through) */ + case 512: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_512); + break; + case 1024: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_1024); + break; + case 2048: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_2048); + break; + case 4096: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_4096); + break; + } + bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, + LPFC_HDR_BUF_SIZE); } bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, cq->queue_id); bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, hrq->page_count); - bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, - LPFC_HDR_BUF_SIZE); list_for_each_entry(dmabuf, &hrq->page_list, list) { memset(dmabuf->virt, 0, hw_page_size); rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = @@ -10855,7 +10911,6 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, } rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); /* The IOCTL status is embedded in the mailbox subheader. */ - shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); if (shdr_status || shdr_add_status || rc) { @@ -10881,37 +10936,50 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length, LPFC_SLI4_MBX_EMBED); - switch (drq->entry_count) { - default: - lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "2536 Unsupported RQ count. (%d)\n", - drq->entry_count); - if (drq->entry_count < 512) - return -EINVAL; - /* otherwise default to smallest count (drop through) */ - case 512: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_512); - break; - case 1024: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_1024); - break; - case 2048: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_2048); - break; - case 4096: - bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, - LPFC_RQ_RING_SIZE_4096); - break; + bf_set(lpfc_mbox_hdr_version, &shdr->request, + phba->sli4_hba.pc_sli4_params.rqv); + if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) { + bf_set(lpfc_rq_context_rqe_count_1, + &rq_create->u.request.context, + hrq->entry_count); + rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE; + } else { + switch (drq->entry_count) { + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2536 Unsupported RQ count. (%d)\n", + drq->entry_count); + if (drq->entry_count < 512) + return -EINVAL; + /* otherwise default to smallest count (drop through) */ + case 512: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_512); + break; + case 1024: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_1024); + break; + case 2048: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_2048); + break; + case 4096: + bf_set(lpfc_rq_context_rqe_count, + &rq_create->u.request.context, + LPFC_RQ_RING_SIZE_4096); + break; + } + bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, + LPFC_DATA_BUF_SIZE); } bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, cq->queue_id); bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, drq->page_count); - bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, - LPFC_DATA_BUF_SIZE); list_for_each_entry(dmabuf, &drq->page_list, list) { rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys); -- cgit v0.10.2 From 7f86059ac016d8662e5fbfab4875529510977b47 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:05:52 -0500 Subject: [SCSI] lpfc 8.3.22: T10-DIF corrections T10-DIF corrections - Add selective reset jump table entry - Split T10-DIF BDEs that cross 4K boundary Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index b64c6da..d9869f4 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -539,6 +539,8 @@ struct lpfc_hba { (struct lpfc_hba *, uint32_t); int (*lpfc_hba_down_link) (struct lpfc_hba *, uint32_t); + int (*lpfc_selective_reset) + (struct lpfc_hba *); /* SLI4 specific HBA data structure */ struct lpfc_sli4_hba sli4_hba; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index e7c020d..427c046 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -685,7 +685,7 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) * -EIO reset not configured or error posting the event * zero for success **/ -static int +int lpfc_selective_reset(struct lpfc_hba *phba) { struct completion online_compl; @@ -746,7 +746,7 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr, int status = -EINVAL; if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) - status = lpfc_selective_reset(phba); + status = phba->lpfc_selective_reset(phba); if (status == 0) return strlen(buf); diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 3d40023..60281d8 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -254,8 +254,8 @@ uint16_t lpfc_sli_next_iotag(struct lpfc_hba *, struct lpfc_iocbq *); void lpfc_sli_cancel_iocbs(struct lpfc_hba *, struct list_head *, uint32_t, uint32_t); void lpfc_sli_wake_mbox_wait(struct lpfc_hba *, LPFC_MBOXQ_t *); - -void lpfc_reset_barrier(struct lpfc_hba * phba); +int lpfc_selective_reset(struct lpfc_hba *); +void lpfc_reset_barrier(struct lpfc_hba *); int lpfc_sli_brdready(struct lpfc_hba *, uint32_t); int lpfc_sli_brdkill(struct lpfc_hba *); int lpfc_sli_brdreset(struct lpfc_hba *); diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 94ae37c..057ab82 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -1713,6 +1713,17 @@ struct lpfc_pde6 { #define pde6_apptagval_WORD word2 }; +struct lpfc_pde7 { + uint32_t word0; +#define pde7_type_SHIFT 24 +#define pde7_type_MASK 0x000000ff +#define pde7_type_WORD word0 +#define pde7_rsvd0_SHIFT 0 +#define pde7_rsvd0_MASK 0x00ffffff +#define pde7_rsvd0_WORD word0 + uint32_t addrHigh; + uint32_t addrLow; +}; /* Structure for MB Command LOAD_SM and DOWN_LOAD */ diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 35665cf..29aab94 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4474,6 +4474,7 @@ lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) { phba->lpfc_hba_init_link = lpfc_hba_init_link; phba->lpfc_hba_down_link = lpfc_hba_down_link; + phba->lpfc_selective_reset = lpfc_selective_reset; switch (dev_grp) { case LPFC_PCI_DEV_LP: phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index bf34178..e3a1d29 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1514,10 +1514,11 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct scatterlist *sgpe = NULL; /* s/g prot entry */ struct lpfc_pde5 *pde5 = NULL; struct lpfc_pde6 *pde6 = NULL; - struct ulp_bde64 *prot_bde = NULL; + struct lpfc_pde7 *pde7 = NULL; dma_addr_t dataphysaddr, protphysaddr; unsigned short curr_data = 0, curr_prot = 0; - unsigned int split_offset, protgroup_len; + unsigned int split_offset; + unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; unsigned int protgrp_blks, protgrp_bytes; unsigned int remainder, subtotal; int status; @@ -1585,23 +1586,33 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, bpl++; /* setup the first BDE that points to protection buffer */ - prot_bde = (struct ulp_bde64 *) bpl; - protphysaddr = sg_dma_address(sgpe); - prot_bde->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr)); - prot_bde->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr)); - protgroup_len = sg_dma_len(sgpe); + protphysaddr = sg_dma_address(sgpe) + protgroup_offset; + protgroup_len = sg_dma_len(sgpe) - protgroup_offset; /* must be integer multiple of the DIF block length */ BUG_ON(protgroup_len % 8); + pde7 = (struct lpfc_pde7 *) bpl; + memset(pde7, 0, sizeof(struct lpfc_pde7)); + bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); + + pde7->addrHigh = le32_to_cpu(putPaddrLow(protphysaddr)); + pde7->addrLow = le32_to_cpu(putPaddrHigh(protphysaddr)); + protgrp_blks = protgroup_len / 8; protgrp_bytes = protgrp_blks * blksize; - prot_bde->tus.f.bdeSize = protgroup_len; - prot_bde->tus.f.bdeFlags = LPFC_PDE7_DESCRIPTOR; - prot_bde->tus.w = le32_to_cpu(bpl->tus.w); + /* check if this pde is crossing the 4K boundary; if so split */ + if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { + protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); + protgroup_offset += protgroup_remainder; + protgrp_blks = protgroup_remainder / 8; + protgrp_bytes = protgroup_remainder * blksize; + } else { + protgroup_offset = 0; + curr_prot++; + } - curr_prot++; num_bde++; /* setup BDE's for data blocks associated with DIF data */ @@ -1653,6 +1664,13 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, } + if (protgroup_offset) { + /* update the reference tag */ + reftag += protgrp_blks; + bpl++; + continue; + } + /* are we done ? */ if (curr_prot == protcnt) { alldone = 1; @@ -1675,6 +1693,7 @@ out: return num_bde; } + /* * Given a SCSI command that supports DIF, determine composition of protection * groups involved in setting up buffer lists -- cgit v0.10.2 From 9940b97bb30d7435c881418c809ed652eb329583 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:06:12 -0500 Subject: [SCSI] lpfc 8.3.22: Add support for PCI Adapter Failure Periodically poll adapter registers to detect pci adapter failure (reads return -1). On failure, take port offline, set error indicators and wake up worker threads. Threads will take adapter offline. Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index d9869f4..60e98a6 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -897,7 +897,18 @@ lpfc_worker_wake_up(struct lpfc_hba *phba) return; } -static inline void +static inline int +lpfc_readl(void __iomem *addr, uint32_t *data) +{ + uint32_t temp; + temp = readl(addr); + if (temp == 0xffffffff) + return -EIO; + *data = temp; + return 0; +} + +static inline int lpfc_sli_read_hs(struct lpfc_hba *phba) { /* @@ -906,15 +917,17 @@ lpfc_sli_read_hs(struct lpfc_hba *phba) */ phba->sli.slistat.err_attn_event++; - /* Save status info */ - phba->work_hs = readl(phba->HSregaddr); - phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); - phba->work_status[1] = readl(phba->MBslimaddr + 0xac); + /* Save status info and check for unplug error */ + if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || + lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || + lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { + return -EIO; + } /* Clear chip Host Attention error bit */ writel(HA_ERATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ phba->pport->stopped = 1; - return; + return 0; } diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 427c046..4e0faa0 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -1224,7 +1224,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, if (val & ENABLE_FCP_RING_POLLING) { if ((val & DISABLE_FCP_RING_INT) && !(old_val & DISABLE_FCP_RING_INT)) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -1242,7 +1245,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, spin_unlock_irq(&phba->hbalock); del_timer(&phba->fcp_poll_timer); spin_lock_irq(&phba->hbalock); - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index 5a4a2f3..d9b91b3 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -348,7 +348,10 @@ lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job) dd_data->context_un.iocb.bmp = bmp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -EIO ; + goto free_cmdiocbq; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -599,7 +602,10 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job) dd_data->context_un.iocb.ndlp = ndlp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -EIO; + goto linkdown_err; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -613,6 +619,7 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job) else rc = -EIO; +linkdown_err: pci_unmap_sg(phba->pcidev, job->request_payload.sg_list, job->request_payload.sg_cnt, DMA_TO_DEVICE); pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list, @@ -1357,7 +1364,10 @@ lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag, dd_data->context_un.iocb.ndlp = ndlp; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + rc = -IOCB_ERROR; + goto issue_ct_rsp_exit; + } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 8e28edf..735028f 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -89,7 +89,8 @@ lpfc_els_chk_latt(struct lpfc_vport *vport) return 0; /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; if (!(ha_copy & HA_LATT)) return 0; diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 057ab82..c3a0e62 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -1344,7 +1344,7 @@ typedef struct { /* FireFly BIU registers */ #define HS_FFER1 0x80000000 /* Bit 31 */ #define HS_CRIT_TEMP 0x00000100 /* Bit 8 */ #define HS_FFERM 0xFF000100 /* Mask for error bits 31:24 and 8 */ - +#define UNPLUG_ERR 0x00000001 /* Indicate pci hot unplug */ /* Host Control Register */ #define HC_REG_OFFSET 12 /* Byte offset from register base address */ diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 29aab94..d5d07a89 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -507,7 +507,10 @@ lpfc_config_port_post(struct lpfc_hba *phba) phba->hba_flag &= ~HBA_ERATT_HANDLED; /* Enable appropriate host interrupts */ - status = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &status)) { + spin_unlock_irq(&phba->hbalock); + return -EIO; + } status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; if (psli->num_rings > 0) status |= HC_R0INT_ENA; @@ -1222,7 +1225,10 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba) /* Wait for the ER1 bit to clear.*/ while (phba->work_hs & HS_FFER1) { msleep(100); - phba->work_hs = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { + phba->work_hs = UNPLUG_ERR ; + break; + } /* If driver is unloading let the worker thread continue */ if (phba->pport->load_flag & FC_UNLOADING) { phba->work_hs = 0; @@ -5386,13 +5392,16 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba) int i, port_error = 0; uint32_t if_type; + memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); + memset(®_data, 0, sizeof(reg_data)); if (!phba->sli4_hba.PSMPHRregaddr) return -ENODEV; /* Wait up to 30 seconds for the SLI Port POST done and ready */ for (i = 0; i < 3000; i++) { - portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr); - if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) { + if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr_reg.word0) || + (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { /* Port has a fatal POST error, break out */ port_error = -ENODEV; break; @@ -5473,9 +5482,9 @@ lpfc_sli4_post_status_check(struct lpfc_hba *phba) break; case LPFC_SLI_INTF_IF_TYPE_2: /* Final checks. The port status should be clean. */ - reg_data.word0 = - readl(phba->sli4_hba.u.if_type2.STATUSregaddr); - if (bf_get(lpfc_sliport_status_err, ®_data)) { + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + ®_data.word0) || + bf_get(lpfc_sliport_status_err, ®_data)) { phba->work_status[0] = readl(phba->sli4_hba.u.if_type2. ERR1regaddr); @@ -6761,9 +6770,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) * the loop again. */ for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { - reg_data.word0 = - readl(phba->sli4_hba.u.if_type2. - STATUSregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2. + STATUSregaddr, ®_data.word0)) { + rc = -ENODEV; + break; + } if (bf_get(lpfc_sliport_status_rdy, ®_data)) break; if (bf_get(lpfc_sliport_status_rn, ®_data)) { @@ -6784,8 +6795,11 @@ lpfc_pci_function_reset(struct lpfc_hba *phba) } /* Detect any port errors. */ - reg_data.word0 = readl(phba->sli4_hba.u.if_type2. - STATUSregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + ®_data.word0)) { + rc = -ENODEV; + break; + } if ((bf_get(lpfc_sliport_status_err, ®_data)) || (rdy_chk >= 1000)) { phba->work_status[0] = readl( diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 84234a4..3218c18 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -3477,7 +3477,8 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) int retval = 0; /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return 1; /* * Check status register every 100ms for 5 retries, then every @@ -3502,7 +3503,10 @@ lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) { + retval = 1; + break; + } } /* Check to see if any errors occurred during init */ @@ -3584,7 +3588,7 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) uint32_t __iomem *resp_buf; uint32_t __iomem *mbox_buf; volatile uint32_t mbox; - uint32_t hc_copy; + uint32_t hc_copy, ha_copy, resp_data; int i; uint8_t hdrtype; @@ -3601,12 +3605,15 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) resp_buf = phba->MBslimaddr; /* Disable the error attention */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) + return; writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); readl(phba->HCregaddr); /* flush */ phba->link_flag |= LS_IGNORE_ERATT; - if (readl(phba->HAregaddr) & HA_ERATT) { + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return; + if (ha_copy & HA_ERATT) { /* Clear Chip error bit */ writel(HA_ERATT, phba->HAregaddr); phba->pport->stopped = 1; @@ -3620,11 +3627,18 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) mbox_buf = phba->MBslimaddr; writel(mbox, mbox_buf); - for (i = 0; - readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) - mdelay(1); - - if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { + for (i = 0; i < 50; i++) { + if (lpfc_readl((resp_buf + 1), &resp_data)) + return; + if (resp_data != ~(BARRIER_TEST_PATTERN)) + mdelay(1); + else + break; + } + resp_data = 0; + if (lpfc_readl((resp_buf + 1), &resp_data)) + return; + if (resp_data != ~(BARRIER_TEST_PATTERN)) { if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || phba->pport->stopped) goto restore_hc; @@ -3633,13 +3647,26 @@ void lpfc_reset_barrier(struct lpfc_hba *phba) } ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; - for (i = 0; readl(resp_buf) != mbox && i < 500; i++) - mdelay(1); + resp_data = 0; + for (i = 0; i < 500; i++) { + if (lpfc_readl(resp_buf, &resp_data)) + return; + if (resp_data != mbox) + mdelay(1); + else + break; + } clear_errat: - while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) - mdelay(1); + while (++i < 500) { + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return; + if (!(ha_copy & HA_ERATT)) + mdelay(1); + else + break; + } if (readl(phba->HAregaddr) & HA_ERATT) { writel(HA_ERATT, phba->HAregaddr); @@ -3686,7 +3713,11 @@ lpfc_sli_brdkill(struct lpfc_hba *phba) /* Disable the error attention */ spin_lock_irq(&phba->hbalock); - status = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &status)) { + spin_unlock_irq(&phba->hbalock); + mempool_free(pmb, phba->mbox_mem_pool); + return 1; + } status &= ~HC_ERINT_ENA; writel(status, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -3720,11 +3751,12 @@ lpfc_sli_brdkill(struct lpfc_hba *phba) * 3 seconds we still set HBA_ERROR state because the status of the * board is now undefined. */ - ha_copy = readl(phba->HAregaddr); - + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; while ((i++ < 30) && !(ha_copy & HA_ERATT)) { mdelay(100); - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return 1; } del_timer_sync(&psli->mbox_tmo); @@ -4018,7 +4050,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba) uint32_t status, i = 0; /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return -EIO; /* Check status register to see what current state is */ i = 0; @@ -4073,7 +4106,8 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba) lpfc_sli_brdrestart(phba); } /* Read the HBA Host Status Register */ - status = readl(phba->HSregaddr); + if (lpfc_readl(phba->HSregaddr, &status)) + return -EIO; } /* Check to see if any errors occurred during init */ @@ -5136,7 +5170,7 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, MAILBOX_t *mb; struct lpfc_sli *psli = &phba->sli; uint32_t status, evtctr; - uint32_t ha_copy; + uint32_t ha_copy, hc_copy; int i; unsigned long timeout; unsigned long drvr_flag = 0; @@ -5202,15 +5236,17 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, goto out_not_finished; } - if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && - !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { - spin_unlock_irqrestore(&phba->hbalock, drvr_flag); - lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, + if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) { + if (lpfc_readl(phba->HCregaddr, &hc_copy) || + !(hc_copy & HC_MBINT_ENA)) { + spin_unlock_irqrestore(&phba->hbalock, drvr_flag); + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "(%d):2528 Mailbox command x%x cannot " "issue Data: x%x x%x\n", pmbox->vport ? pmbox->vport->vpi : 0, pmbox->u.mb.mbxCommand, psli->sli_flag, flag); - goto out_not_finished; + goto out_not_finished; + } } if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { @@ -5408,11 +5444,19 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, word0 = le32_to_cpu(word0); } else { /* First read mbox status word */ - word0 = readl(phba->MBslimaddr); + if (lpfc_readl(phba->MBslimaddr, &word0)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } } /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mb->mbxCommand) * 1000) + jiffies; @@ -5463,7 +5507,11 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, word0 = readl(phba->MBslimaddr); } /* Read the HBA Host Attention Register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) { + spin_unlock_irqrestore(&phba->hbalock, + drvr_flag); + goto out_not_finished; + } } if (psli->sli_flag & LPFC_SLI_ACTIVE) { @@ -8194,7 +8242,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, piocb->iocb_flag &= ~LPFC_IO_WAKE; if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) + return IOCB_ERROR; creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8236,7 +8285,8 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, } if (phba->cfg_poll & DISABLE_FCP_RING_INT) { - creg_val = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &creg_val)) + return IOCB_ERROR; creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8387,10 +8437,13 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba) uint32_t ha_copy; /* Read chip Host Attention (HA) register */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + goto unplug_err; + if (ha_copy & HA_ERATT) { /* Read host status register to retrieve error event */ - lpfc_sli_read_hs(phba); + if (lpfc_sli_read_hs(phba)) + goto unplug_err; /* Check if there is a deferred error condition is active */ if ((HS_FFER1 & phba->work_hs) && @@ -8409,6 +8462,15 @@ lpfc_sli_eratt_read(struct lpfc_hba *phba) return 1; } return 0; + +unplug_err: + /* Set the driver HS work bitmap */ + phba->work_hs |= UNPLUG_ERR; + /* Set the driver HA work bitmap */ + phba->work_ha |= HA_ERATT; + /* Indicate polling handles this ERATT */ + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; } /** @@ -8436,8 +8498,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba) if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); switch (if_type) { case LPFC_SLI_INTF_IF_TYPE_0: - uerr_sta_lo = readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); - uerr_sta_hi = readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr, + &uerr_sta_lo) || + lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr, + &uerr_sta_hi)) { + phba->work_hs |= UNPLUG_ERR; + phba->work_ha |= HA_ERATT; + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; + } if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) || (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, @@ -8456,9 +8525,15 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba) } break; case LPFC_SLI_INTF_IF_TYPE_2: - portstat_reg.word0 = - readl(phba->sli4_hba.u.if_type2.STATUSregaddr); - portsmphr = readl(phba->sli4_hba.PSMPHRregaddr); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + &portstat_reg.word0) || + lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr)){ + phba->work_hs |= UNPLUG_ERR; + phba->work_ha |= HA_ERATT; + phba->hba_flag |= HBA_ERATT_HANDLED; + return 1; + } if (bf_get(lpfc_sliport_status_err, &portstat_reg)) { phba->work_status[0] = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); @@ -8639,7 +8714,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) return IRQ_NONE; /* Need to read HA REG for slow-path events */ spin_lock_irqsave(&phba->hbalock, iflag); - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + goto unplug_error; /* If somebody is waiting to handle an eratt don't process it * here. The brdkill function will do this. */ @@ -8665,7 +8741,9 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) } /* Clear up only attention source related to slow-path */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) + goto unplug_error; + writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), phba->HCregaddr); @@ -8688,7 +8766,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) */ spin_lock_irqsave(&phba->hbalock, iflag); phba->sli.sli_flag &= ~LPFC_PROCESS_LA; - control = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &control)) + goto unplug_error; control &= ~HC_LAINT_ENA; writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ @@ -8708,7 +8787,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) status >>= (4*LPFC_ELS_RING); if (status & HA_RXMASK) { spin_lock_irqsave(&phba->hbalock, iflag); - control = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &control)) + goto unplug_error; lpfc_debugfs_slow_ring_trc(phba, "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", @@ -8741,7 +8821,8 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id) } spin_lock_irqsave(&phba->hbalock, iflag); if (work_ha_copy & HA_ERATT) { - lpfc_sli_read_hs(phba); + if (lpfc_sli_read_hs(phba)) + goto unplug_error; /* * Check if there is a deferred error condition * is active @@ -8872,6 +8953,9 @@ send_current_mbox: lpfc_worker_wake_up(phba); } return IRQ_HANDLED; +unplug_error: + spin_unlock_irqrestore(&phba->hbalock, iflag); + return IRQ_HANDLED; } /* lpfc_sli_sp_intr_handler */ @@ -8919,7 +9003,8 @@ lpfc_sli_fp_intr_handler(int irq, void *dev_id) if (lpfc_intr_state_check(phba)) return IRQ_NONE; /* Need to read HA REG for FCP ring and other ring events */ - ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &ha_copy)) + return IRQ_HANDLED; /* Clear up only attention source related to fast-path */ spin_lock_irqsave(&phba->hbalock, iflag); /* @@ -9004,7 +9089,11 @@ lpfc_sli_intr_handler(int irq, void *dev_id) return IRQ_NONE; spin_lock(&phba->hbalock); - phba->ha_copy = readl(phba->HAregaddr); + if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) { + spin_unlock(&phba->hbalock); + return IRQ_HANDLED; + } + if (unlikely(!phba->ha_copy)) { spin_unlock(&phba->hbalock); return IRQ_NONE; @@ -9026,7 +9115,10 @@ lpfc_sli_intr_handler(int irq, void *dev_id) } /* Clear attention sources except link and error attentions */ - hc_copy = readl(phba->HCregaddr); + if (lpfc_readl(phba->HCregaddr, &hc_copy)) { + spin_unlock(&phba->hbalock); + return IRQ_HANDLED; + } writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), phba->HCregaddr); -- cgit v0.10.2 From 546fc854d0faa76358d1deffd2c4f6b8598bf5f2 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:06:29 -0500 Subject: [SCSI] lpfc 8.3.22: FC Discovery fixes FC Discovery fixes - In lpfc_sli4_bpl2sgl byte swapping the SGL in word2. - In lpfc_sli4_iocb2wqe byteswap the data for CMD_GEN_REQUEST64_CR type WQE. - In lpfc_sli4_seq_abort_acc do not set the oxid into the iocb's xritag field. - In lpfc_sli4_seq_abort_acc check the return value of lpfc_sli_issue_iocb. - Inprove messages in this area. Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index c3a0e62..95f11ed 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -3632,7 +3632,7 @@ typedef struct _IOCB { /* IOCB structure */ ASYNCSTAT_FIELDS asyncstat; /* async_status iocb */ QUE_XRI64_CX_FIELDS quexri64cx; /* que_xri64_cx fields */ struct rcv_seq64 rcvseq64; /* RCV_SEQ64 and RCV_CONT64 */ - struct sli4_bls_acc bls_acc; /* UNSOL ABTS BLS_ACC params */ + struct sli4_bls_rsp bls_rsp; /* UNSOL ABTS BLS_RSP params */ uint32_t ulpWord[IOCB_WORD_SZ - 2]; /* generic 6 'words' */ } un; union { diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index b42b699..8433ac0 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -215,7 +215,7 @@ struct lpfc_sli4_flags { #define lpfc_fip_flag_WORD word0 }; -struct sli4_bls_acc { +struct sli4_bls_rsp { uint32_t word0_rsvd; /* Word0 must be reserved */ uint32_t word1; #define lpfc_abts_orig_SHIFT 0 @@ -231,6 +231,16 @@ struct sli4_bls_acc { #define lpfc_abts_oxid_MASK 0x0000FFFF #define lpfc_abts_oxid_WORD word2 uint32_t word3; +#define lpfc_vndr_code_SHIFT 0 +#define lpfc_vndr_code_MASK 0x000000FF +#define lpfc_vndr_code_WORD word3 +#define lpfc_rsn_expln_SHIFT 8 +#define lpfc_rsn_expln_MASK 0x000000FF +#define lpfc_rsn_expln_WORD word3 +#define lpfc_rsn_code_SHIFT 16 +#define lpfc_rsn_code_MASK 0x000000FF +#define lpfc_rsn_code_WORD word3 + uint32_t word4; uint32_t word5_rsvd; /* Word5 must be reserved */ }; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 3218c18..cca5f2d 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -6311,7 +6311,6 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, bf_set(lpfc_sli4_sge_last, sgl, 1); else bf_set(lpfc_sli4_sge_last, sgl, 0); - sgl->word2 = cpu_to_le32(sgl->word2); /* swap the size field back to the cpu so we * can assign it to the sgl. */ @@ -6331,6 +6330,7 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, bf_set(lpfc_sli4_sge_offset, sgl, offset); offset += bde.tus.f.bdeSize; } + sgl->word2 = cpu_to_le32(sgl->word2); bpl++; sgl++; } @@ -6576,9 +6576,9 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / sizeof(struct ulp_bde64); for (i = 0; i < numBdes; i++) { - if (bpl[i].tus.f.bdeFlags != BUFF_TYPE_BDE_64) - break; bde.tus.w = le32_to_cpu(bpl[i].tus.w); + if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64) + break; xmit_len += bde.tus.f.bdeSize; } /* word3 iocb=IO_TAG wqe=request_payload_len */ @@ -6668,15 +6668,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, xritag = 0; break; case CMD_XMIT_BLS_RSP64_CX: - /* As BLS ABTS-ACC WQE is very different from other WQEs, + /* As BLS ABTS RSP WQE is very different from other WQEs, * we re-construct this WQE here based on information in * iocbq from scratch. */ memset(wqe, 0, sizeof(union lpfc_wqe)); /* OX_ID is invariable to who sent ABTS to CT exchange */ bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp, - bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc)); - if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) == + bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp)); + if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) == LPFC_ABTS_UNSOL_INT) { /* ABTS sent by initiator to CT exchange, the * RX_ID field will be filled with the newly @@ -6690,7 +6690,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, * RX_ID from ABTS. */ bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, - bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc)); + bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp)); } bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff); bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1); @@ -6701,6 +6701,15 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, LPFC_WQE_LENLOC_NONE); /* Overwrite the pre-set comnd type with OTHER_COMMAND */ command_type = OTHER_COMMAND; + if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) { + bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp, + bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp)); + bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp, + bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp)); + bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp, + bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp)); + } + break; case CMD_XRI_ABORTED_CX: case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ @@ -6749,7 +6758,8 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, if (piocb->sli4_xritag == NO_XRI) { if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || - piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) + piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN || + piocb->iocb.ulpCommand == CMD_XMIT_BLS_RSP64_CX) sglq = NULL; else { if (pring->txq_cnt) { @@ -11740,6 +11750,7 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) static char *rctl_names[] = FC_RCTL_NAMES_INIT; char *type_names[] = FC_TYPE_NAMES_INIT; struct fc_vft_header *fc_vft_hdr; + uint32_t *header = (uint32_t *) fc_hdr; switch (fc_hdr->fh_r_ctl) { case FC_RCTL_DD_UNCAT: /* uncategorized information */ @@ -11788,10 +11799,15 @@ lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) default: goto drop; } + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "2538 Received frame rctl:%s type:%s\n", + "2538 Received frame rctl:%s type:%s " + "Frame Data:%08x %08x %08x %08x %08x %08x\n", rctl_names[fc_hdr->fh_r_ctl], - type_names[fc_hdr->fh_type]); + type_names[fc_hdr->fh_type], + be32_to_cpu(header[0]), be32_to_cpu(header[1]), + be32_to_cpu(header[2]), be32_to_cpu(header[3]), + be32_to_cpu(header[4]), be32_to_cpu(header[5])); return 0; drop: lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, @@ -12088,17 +12104,17 @@ lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport, } /** - * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler + * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler * @phba: Pointer to HBA context object. * @cmd_iocbq: pointer to the command iocbq structure. * @rsp_iocbq: pointer to the response iocbq structure. * - * This function handles the sequence abort accept iocb command complete + * This function handles the sequence abort response iocb command complete * event. It properly releases the memory allocated to the sequence abort * accept iocb. **/ static void -lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, +lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmd_iocbq, struct lpfc_iocbq *rsp_iocbq) { @@ -12107,15 +12123,15 @@ lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, } /** - * lpfc_sli4_seq_abort_acc - Accept sequence abort + * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort * @phba: Pointer to HBA context object. * @fc_hdr: pointer to a FC frame header. * - * This function sends a basic accept to a previous unsol sequence abort + * This function sends a basic response to a previous unsol sequence abort * event after aborting the sequence handling. **/ static void -lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, +lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) { struct lpfc_iocbq *ctiocb = NULL; @@ -12123,6 +12139,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, uint16_t oxid, rxid; uint32_t sid, fctl; IOCB_t *icmd; + int rc; if (!lpfc_is_link_up(phba)) return; @@ -12143,7 +12160,7 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, + phba->sli4_hba.max_cfg_param.xri_base)) lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0); - /* Allocate buffer for acc iocb */ + /* Allocate buffer for rsp iocb */ ctiocb = lpfc_sli_get_iocbq(phba); if (!ctiocb) return; @@ -12168,32 +12185,54 @@ lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, ctiocb->iocb_cmpl = NULL; ctiocb->vport = phba->pport; - ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl; + ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl; + ctiocb->sli4_xritag = NO_XRI; + + /* If the oxid maps to the FCP XRI range or if it is out of range, + * send a BLS_RJT. The driver no longer has that exchange. + * Override the IOCB for a BA_RJT. + */ + if (oxid > (phba->sli4_hba.max_cfg_param.max_xri + + phba->sli4_hba.max_cfg_param.xri_base) || + oxid > (lpfc_sli4_get_els_iocb_cnt(phba) + + phba->sli4_hba.max_cfg_param.xri_base)) { + icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT; + bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0); + bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID); + bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE); + } if (fctl & FC_FC_EX_CTX) { /* ABTS sent by responder to CT exchange, construction * of BA_ACC will use OX_ID from ABTS for the XRI_TAG * field and RX_ID from ABTS for RX_ID field. */ - bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP); - bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid); - ctiocb->sli4_xritag = oxid; + bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP); + bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid); } else { /* ABTS sent by initiator to CT exchange, construction * of BA_ACC will need to allocate a new XRI as for the * XRI_TAG and RX_ID fields. */ - bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT); - bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI); - ctiocb->sli4_xritag = NO_XRI; + bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT); + bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, NO_XRI); } - bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid); + bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid); - /* Xmit CT abts accept on exchange */ + /* Xmit CT abts response on exchange */ lpfc_printf_log(phba, KERN_INFO, LOG_ELS, - "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n", - CMD_XMIT_BLS_RSP64_CX, phba->link_state); - lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); + "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n", + icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state); + + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); + if (rc == IOCB_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_ELS, + "2925 Failed to issue CT ABTS RSP x%x on " + "xri x%x, Data x%x\n", + icmd->un.xseq64.w5.hcsw.Rctl, oxid, + phba->link_state); + lpfc_sli_release_iocbq(phba, ctiocb); + } } /** @@ -12241,7 +12280,7 @@ lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport, lpfc_in_buf_free(phba, &dmabuf->dbuf); } /* Send basic accept (BA_ACC) to the abort requester */ - lpfc_sli4_seq_abort_acc(phba, &fc_hdr); + lpfc_sli4_seq_abort_rsp(phba, &fc_hdr); } /** -- cgit v0.10.2 From 792581de597c78ee353b6e2a06490f0ef576032e Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:06:44 -0500 Subject: [SCSI] lpfc 8.3.22: Update Copyright Dates Update Copyright Dates Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/Makefile b/drivers/scsi/lpfc/Makefile index 14de249..88928f0 100644 --- a/drivers/scsi/lpfc/Makefile +++ b/drivers/scsi/lpfc/Makefile @@ -1,7 +1,7 @@ #/******************************************************************* # * This file is part of the Emulex Linux Device Driver for * # * Fibre Channel Host Bus Adapters. * -# * Copyright (C) 2004-2006 Emulex. All rights reserved. * +# * Copyright (C) 2004-2011 Emulex. All rights reserved. * # * EMULEX and SLI are trademarks of Emulex. * # * www.emulex.com * # * * diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c index d9b91b3..793b9f1 100644 --- a/drivers/scsi/lpfc/lpfc_bsg.c +++ b/drivers/scsi/lpfc/lpfc_bsg.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2009-2010 Emulex. All rights reserved. * + * Copyright (C) 2009-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 60281d8..f0b332f 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2010 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index d5d07a89..e6ebe51 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2010 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index e3a1d29..2b962b0 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2009 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index cca5f2d..4746dcd 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2004-2009 Emulex. All rights reserved. * + * Copyright (C) 2004-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 595056b..1a3cbf8 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -1,7 +1,7 @@ /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * - * Copyright (C) 2009 Emulex. All rights reserved. * + * Copyright (C) 2009-2011 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * * -- cgit v0.10.2 From 4b3203052494ea7b0a445ace676cd2013917c807 Mon Sep 17 00:00:00 2001 From: James Smart Date: Fri, 11 Mar 2011 16:06:58 -0500 Subject: [SCSI] lpfc 8.3.22: Update driver version to 8.3.22 Update driver version to 8.3.22 Signed-off-by: Alex Iannicelli Signed-off-by: James Smart Signed-off-by: James Bottomley diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 0a4d376..2404d1d 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.3.21" +#define LPFC_DRIVER_VERSION "8.3.22" #define LPFC_DRIVER_NAME "lpfc" #define LPFC_SP_DRIVER_HANDLER_NAME "lpfc:sp" #define LPFC_FP_DRIVER_HANDLER_NAME "lpfc:fp" -- cgit v0.10.2 From 8fc1858a42663248d5b362edc313786e0be7a639 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 14 Mar 2011 04:05:55 -0700 Subject: [SCSI] target: Fix memory leak on error path in pscsi_alloc_task If allocation of pt->pscsi_cdb fails, we need to free the just-allocated pt or else it will be leaked. Signed-off-by: Roland Dreier Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 5a9d2ba..3031ef8 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -816,6 +816,7 @@ pscsi_alloc_task(struct se_cmd *cmd) if (!(pt->pscsi_cdb)) { printk(KERN_ERR "pSCSI: Unable to allocate extended" " pt->pscsi_cdb\n"); + kfree(pt); return NULL; } } else -- cgit v0.10.2 From 6d1802539d218e24492c651bd0687ebfe7e14831 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 14 Mar 2011 04:05:56 -0700 Subject: [SCSI] target: Fix match_strdup() memory leaks match_strdup() dynamically allocates memory and it is the responsabillity of the caller to free that memory. The following three cases: drivers/target/target_core_file.c:fd_set_configfs_dev_params() drivers/target/target_core_iblock.c:iblock_set_configfs_dev_params() drivers/target/target_core_configfs.c:target_core_dev_pr_store_attr_res_aptpl_metadata() should be kfree()'ing the allocated memory once it is no longer needed. It also makes sure to return -ENOMEM if the memory allocation in match_strdup() should fail. For target_core_configfs.c, this patch adds kfree()'s around Opt_initiator_fabric, Opt_initiator_node, Opt_initiator_sid, Opt_sa_res_key, Opt_target_fabric, and Opt_target_node for the Persistent Reservations Activate Persistence across Target Power Loss (APTPL=1) token parsing. Signed-off-by: Jesper Juhl Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index caf8dc1..c9254d7 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1451,8 +1451,8 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( size_t count) { struct se_device *dev; - unsigned char *i_fabric, *t_fabric, *i_port = NULL, *t_port = NULL; - unsigned char *isid = NULL; + unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; + unsigned char *t_fabric = NULL, *t_port = NULL; char *orig, *ptr, *arg_p, *opts; substring_t args[MAX_OPT_ARGS]; unsigned long long tmp_ll; @@ -1488,9 +1488,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( switch (token) { case Opt_initiator_fabric: i_fabric = match_strdup(&args[0]); + if (!i_fabric) { + ret = -ENOMEM; + goto out; + } break; case Opt_initiator_node: i_port = match_strdup(&args[0]); + if (!i_port) { + ret = -ENOMEM; + goto out; + } if (strlen(i_port) > PR_APTPL_MAX_IPORT_LEN) { printk(KERN_ERR "APTPL metadata initiator_node=" " exceeds PR_APTPL_MAX_IPORT_LEN: %d\n", @@ -1501,6 +1509,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( break; case Opt_initiator_sid: isid = match_strdup(&args[0]); + if (!isid) { + ret = -ENOMEM; + goto out; + } if (strlen(isid) > PR_REG_ISID_LEN) { printk(KERN_ERR "APTPL metadata initiator_isid" "= exceeds PR_REG_ISID_LEN: %d\n", @@ -1511,6 +1523,10 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( break; case Opt_sa_res_key: arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + goto out; + } ret = strict_strtoull(arg_p, 0, &tmp_ll); if (ret < 0) { printk(KERN_ERR "strict_strtoull() failed for" @@ -1547,9 +1563,17 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( */ case Opt_target_fabric: t_fabric = match_strdup(&args[0]); + if (!t_fabric) { + ret = -ENOMEM; + goto out; + } break; case Opt_target_node: t_port = match_strdup(&args[0]); + if (!t_port) { + ret = -ENOMEM; + goto out; + } if (strlen(t_port) > PR_APTPL_MAX_TPORT_LEN) { printk(KERN_ERR "APTPL metadata target_node=" " exceeds PR_APTPL_MAX_TPORT_LEN: %d\n", @@ -1592,6 +1616,11 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( i_port, isid, mapped_lun, t_port, tpgt, target_lun, res_holder, all_tg_pt, type); out: + kfree(i_fabric); + kfree(i_port); + kfree(isid); + kfree(t_fabric); + kfree(t_port); kfree(orig); return (ret == 0) ? count : ret; } diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 190ca8a..7850c6a 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -536,15 +536,26 @@ static ssize_t fd_set_configfs_dev_params( token = match_token(ptr, tokens, args); switch (token) { case Opt_fd_dev_name: + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } snprintf(fd_dev->fd_dev_name, FD_MAX_DEV_NAME, - "%s", match_strdup(&args[0])); + "%s", arg_p); + kfree(arg_p); printk(KERN_INFO "FILEIO: Referencing Path: %s\n", fd_dev->fd_dev_name); fd_dev->fbd_flags |= FBDF_HAS_PATH; break; case Opt_fd_dev_size: arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } ret = strict_strtoull(arg_p, 0, &fd_dev->fd_dev_size); + kfree(arg_p); if (ret < 0) { printk(KERN_ERR "strict_strtoull() failed for" " fd_dev_size=\n"); diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 3df570d..96d98cc 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -468,7 +468,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba, const char *page, ssize_t count) { struct iblock_dev *ib_dev = se_dev->se_dev_su_ptr; - char *orig, *ptr, *opts; + char *orig, *ptr, *arg_p, *opts; substring_t args[MAX_OPT_ARGS]; int ret = 0, arg, token; @@ -491,9 +491,14 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba, ret = -EEXIST; goto out; } - - ret = snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN, - "%s", match_strdup(&args[0])); + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } + snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN, + "%s", arg_p); + kfree(arg_p); printk(KERN_INFO "IBLOCK: Referencing UDEV path: %s\n", ib_dev->ibd_udev_path); ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH; -- cgit v0.10.2 From 10635c8b71957449b4c53c5f6b9210cc1a7d984d Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:05:57 -0700 Subject: [SCSI] target: tcm_mod_builder.py generated Makefile cleanups This patch converts the tcm_mod_builder.py generation script to create a new drivers/target/$TCM_FABRIC_MOD/Makefile and update drivers/target/Makefile, instead of creating+updating a 'Kbuild' filename. It also removes the remaining EXTRA_CFLAGS includes from tcm_mod_build_kbuild(), and converts fabric module generated .c code to us ""-style includes for $FABRIC_MOD_[base,fabric].h Reported-by: Christoph Hellwig Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index dbeb8a0..89af6c7 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -239,8 +239,8 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include \n" buf += "#include \n" buf += "#include \n\n" - buf += "#include <" + fabric_mod_name + "_base.h>\n" - buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n" + buf += "#include \"" + fabric_mod_name + "_base.h\"\n" + buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" buf += "/* Local pointer to allocated TCM configfs fabric module */\n" buf += "struct target_fabric_configfs *" + fabric_mod_name + "_fabric_configfs;\n\n" @@ -583,9 +583,9 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include \n" buf += "#include \n" buf += "#include \n" - buf += "#include \n" - buf += "#include <" + fabric_mod_name + "_base.h>\n" - buf += "#include <" + fabric_mod_name + "_fabric.h>\n\n" + buf += "#include \n\n" + buf += "#include \"" + fabric_mod_name + "_base.h\"\n" + buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" buf += "int " + fabric_mod_name + "_check_true(struct se_portal_group *se_tpg)\n" buf += "{\n" @@ -973,14 +973,13 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): def tcm_mod_build_kbuild(fabric_mod_dir_var, fabric_mod_name): buf = "" - f = fabric_mod_dir_var + "/Kbuild" + f = fabric_mod_dir_var + "/Makefile" print "Writing file: " + f p = open(f, 'w') if not p: tcm_mod_err("Unable to open file: " + f) - buf = "EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/include/ -I$(srctree)/drivers/scsi/ -I$(srctree)/include/scsi/ -I$(srctree)/drivers/target/" + fabric_mod_name + "\n\n" buf += fabric_mod_name + "-objs := " + fabric_mod_name + "_fabric.o \\\n" buf += " " + fabric_mod_name + "_configfs.o\n" buf += "obj-$(CONFIG_" + fabric_mod_name.upper() + ") += " + fabric_mod_name + ".o\n" @@ -1018,7 +1017,7 @@ def tcm_mod_build_kconfig(fabric_mod_dir_var, fabric_mod_name): def tcm_mod_add_kbuild(tcm_dir, fabric_mod_name): buf = "obj-$(CONFIG_" + fabric_mod_name.upper() + ") += " + fabric_mod_name.lower() + "/\n" - kbuild = tcm_dir + "/drivers/target/Kbuild" + kbuild = tcm_dir + "/drivers/target/Makefile" f = open(kbuild, 'a') f.write(buf) @@ -1064,7 +1063,7 @@ def main(modname, proto_ident): tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name) tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name) - input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kbuild..? [yes,no]: ") + input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ") if input == "yes" or input == "y": tcm_mod_add_kbuild(tcm_dir, fabric_mod_name) -- cgit v0.10.2 From 5e8de4f3199446f5eeb371312da20534ebfe9979 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 14 Mar 2011 04:05:58 -0700 Subject: [SCSI] target: remove EXTRA_CFLAGS Add the current directory is superflous in general, and no includes in drivers/scsi are needed either. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 973bb19..050ee65 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -1,4 +1,3 @@ -EXTRA_CFLAGS += -I$(srctree)/drivers/target/ -I$(srctree)/drivers/scsi/ target_core_mod-y := target_core_configfs.o \ target_core_device.o \ -- cgit v0.10.2 From 613640e4e1b5358ce880d16f10ecc2550b32b250 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:05:59 -0700 Subject: [SCSI] target: Convert backend ->create_virtdevice() call to return ERR_PTR This patch converts the target_core_store_dev_enable() -> struct se_subsystem_api->create_virtdevice() call to return proper ERR_PTR values back up to configfs logic during backend dependent struct se_device ENABLE exception conditions. Along with the change to target_core_configfs.c, this includes converting IBLOCK, FILEIO, pSCSI, and RAMDISK_* backend subsystem plugins to obtain upper level PTR_ERR return codes (where available), and return via ERR_PTR during a *_create_virtdev() failure. Reported-by: Fubo Chen Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index c9254d7..9721ef2 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1827,7 +1827,9 @@ static ssize_t target_core_store_dev_enable( return -EINVAL; dev = t->create_virtdevice(hba, se_dev, se_dev->se_dev_su_ptr); - if (!(dev) || IS_ERR(dev)) + if (IS_ERR(dev)) + return PTR_ERR(dev); + else if (!dev) return -EINVAL; se_dev->se_dev_ptr = dev; diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 7850c6a..03fa40f 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -134,7 +134,7 @@ static struct se_device *fd_create_virtdevice( mm_segment_t old_fs; struct file *file; struct inode *inode = NULL; - int dev_flags = 0, flags; + int dev_flags = 0, flags, ret = -EINVAL; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); @@ -146,6 +146,7 @@ static struct se_device *fd_create_virtdevice( if (IS_ERR(dev_p)) { printk(KERN_ERR "getname(%s) failed: %lu\n", fd_dev->fd_dev_name, IS_ERR(dev_p)); + ret = PTR_ERR(dev_p); goto fail; } #if 0 @@ -165,8 +166,12 @@ static struct se_device *fd_create_virtdevice( flags |= O_SYNC; file = filp_open(dev_p, flags, 0600); - - if (IS_ERR(file) || !file || !file->f_dentry) { + if (IS_ERR(file)) { + printk(KERN_ERR "filp_open(%s) failed\n", dev_p); + ret = PTR_ERR(file); + goto fail; + } + if (!file || !file->f_dentry) { printk(KERN_ERR "filp_open(%s) failed\n", dev_p); goto fail; } @@ -241,7 +246,7 @@ fail: fd_dev->fd_file = NULL; } putname(dev_p); - return NULL; + return ERR_PTR(ret); } /* fd_free_device(): (Part of se_subsystem_api_t template) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 96d98cc..0f4a509 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -129,10 +129,11 @@ static struct se_device *iblock_create_virtdevice( struct request_queue *q; struct queue_limits *limits; u32 dev_flags = 0; + int ret = -EINVAL; if (!(ib_dev)) { printk(KERN_ERR "Unable to locate struct iblock_dev parameter\n"); - return 0; + return ERR_PTR(ret); } memset(&dev_limits, 0, sizeof(struct se_dev_limits)); /* @@ -141,7 +142,7 @@ static struct se_device *iblock_create_virtdevice( ib_dev->ibd_bio_set = bioset_create(32, 64); if (!(ib_dev->ibd_bio_set)) { printk(KERN_ERR "IBLOCK: Unable to create bioset()\n"); - return 0; + return ERR_PTR(-ENOMEM); } printk(KERN_INFO "IBLOCK: Created bio_set()\n"); /* @@ -153,8 +154,10 @@ static struct se_device *iblock_create_virtdevice( bd = blkdev_get_by_path(ib_dev->ibd_udev_path, FMODE_WRITE|FMODE_READ|FMODE_EXCL, ib_dev); - if (IS_ERR(bd)) + if (IS_ERR(bd)) { + ret = PTR_ERR(bd); goto failed; + } /* * Setup the local scope queue_limits from struct request_queue->limits * to pass into transport_add_device_to_core_hba() as struct se_dev_limits. @@ -184,9 +187,7 @@ static struct se_device *iblock_create_virtdevice( * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM * in ATA and we need to set TPE=1 */ - if (blk_queue_discard(bdev_get_queue(bd))) { - struct request_queue *q = bdev_get_queue(bd); - + if (blk_queue_discard(q)) { DEV_ATTRIB(dev)->max_unmap_lba_count = q->limits.max_discard_sectors; /* @@ -212,7 +213,7 @@ failed: ib_dev->ibd_bd = NULL; ib_dev->ibd_major = 0; ib_dev->ibd_minor = 0; - return NULL; + return ERR_PTR(ret); } static void iblock_free_device(void *p) diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 3031ef8..51fd309 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -555,7 +555,7 @@ static struct se_device *pscsi_create_virtdevice( if (!(pdv)) { printk(KERN_ERR "Unable to locate struct pscsi_dev_virt" " parameter\n"); - return NULL; + return ERR_PTR(-EINVAL); } /* * If not running in PHV_LLD_SCSI_HOST_NO mode, locate the @@ -565,7 +565,7 @@ static struct se_device *pscsi_create_virtdevice( if (phv->phv_mode == PHV_LLD_SCSI_HOST_NO) { printk(KERN_ERR "pSCSI: Unable to locate struct" " Scsi_Host for PHV_LLD_SCSI_HOST_NO\n"); - return NULL; + return ERR_PTR(-ENODEV); } /* * For the newer PHV_VIRUTAL_HOST_ID struct scsi_device @@ -574,7 +574,7 @@ static struct se_device *pscsi_create_virtdevice( if (!(se_dev->su_dev_flags & SDF_USING_UDEV_PATH)) { printk(KERN_ERR "pSCSI: udev_path attribute has not" " been set before ENABLE=1\n"); - return NULL; + return ERR_PTR(-EINVAL); } /* * If no scsi_host_id= was passed for PHV_VIRUTAL_HOST_ID, @@ -587,12 +587,12 @@ static struct se_device *pscsi_create_virtdevice( printk(KERN_ERR "pSCSI: Unable to set hba_mode" " with active devices\n"); spin_unlock(&hba->device_lock); - return NULL; + return ERR_PTR(-EEXIST); } spin_unlock(&hba->device_lock); if (pscsi_pmode_enable_hba(hba, 1) != 1) - return NULL; + return ERR_PTR(-ENODEV); legacy_mode_enable = 1; hba->hba_flags |= HBA_FLAGS_PSCSI_MODE; @@ -602,14 +602,14 @@ static struct se_device *pscsi_create_virtdevice( if (!(sh)) { printk(KERN_ERR "pSCSI: Unable to locate" " pdv_host_id: %d\n", pdv->pdv_host_id); - return NULL; + return ERR_PTR(-ENODEV); } } } else { if (phv->phv_mode == PHV_VIRUTAL_HOST_ID) { printk(KERN_ERR "pSCSI: PHV_VIRUTAL_HOST_ID set while" " struct Scsi_Host exists\n"); - return NULL; + return ERR_PTR(-EEXIST); } } @@ -644,7 +644,7 @@ static struct se_device *pscsi_create_virtdevice( hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; } pdv->pdv_sd = NULL; - return NULL; + return ERR_PTR(-ENODEV); } return dev; } @@ -660,7 +660,7 @@ static struct se_device *pscsi_create_virtdevice( hba->hba_flags &= ~HBA_FLAGS_PSCSI_MODE; } - return NULL; + return ERR_PTR(-ENODEV); } /* pscsi_free_device(): (Part of se_subsystem_api_t template) diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 8dc6d74..f36094f 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -253,13 +253,15 @@ static struct se_device *rd_create_virtdevice( struct se_dev_limits dev_limits; struct rd_dev *rd_dev = p; struct rd_host *rd_host = hba->hba_ptr; - int dev_flags = 0; + int dev_flags = 0, ret = -EINVAL; char prod[16], rev[4]; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); - if (rd_build_device_space(rd_dev) < 0) + if (rd_build_device_space(rd_dev) < 0) { + ret = -ENOMEM; goto fail; + } snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP"); snprintf(rev, 4, "%s", (rd_dev->rd_direct) ? RD_DR_VERSION : @@ -292,7 +294,7 @@ static struct se_device *rd_create_virtdevice( fail: rd_release_device_space(rd_dev); - return NULL; + return ERR_PTR(ret); } static struct se_device *rd_DIRECT_create_virtdevice( -- cgit v0.10.2 From 05aea6e7e497ab418239ae54fe5966d52cbd8550 Mon Sep 17 00:00:00 2001 From: Fubo Chen Date: Mon, 14 Mar 2011 04:06:00 -0700 Subject: [SCSI] target: Remove unnecessary hba_dev_list walk and se_clear_dev_ports legacy code This patch removes a legacy struct se_hba->hba_dev_list -> se_release_device_for_hba() list walk in core_delete_hba(), which is no longer required while using configfs VFS level parent/child struct config_group dependency referencing. The reason is because any struct se_hba->hba_dev_list-> struct se_device members are going to have to be released via: rmdir /sys/kernel/config/target/core/$HBA/* before rmdir release of struct se_hba via target_core_configfs.c: target_core_call_delhbafromtarget() -> core_delete_hba() rmdir /sys/kernel/config/target/core/$HBA to release struct se_hba in core_delete_hba(). This patch also removes the legacy se_clear_dev_ports() function, which is left-over pre-configfs shutdown logic for when se_free_virtual_device() was responsible for walking struct se_device->dev_sep_list and calling core_dev_del_lun() for each individual active struct se_port->se_lun. The reason this can be removed is because all struct se_device->dev_sep_list -> struct se_port communication is done via configfs symlinks, which means that an target fabric module's endpoints containg active struct se_port(s) will have to be released via target_core_fabric_configfs.c: target_fabric_port_unlink() via: unlink /sys/kernel/config/target/$FABRIC_MOD/$ENDPOINT/tpgt_$TPGT/lun/lun_$LUN_ID/ before rmdir release of struct se_device in target_core_configfs.c: target_core_drop_subdev() -> se_free_virtual_device() can happen via: rmdir /sys/kernel/config/target/core/$HBA/* to release struct se_subsystem_dev in target_core_drop_subdev() Reported-by: Stefan Richter Reported-by: Fubo Chen Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 350ed40..9e182bd 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -779,49 +779,14 @@ void se_release_vpd_for_dev(struct se_device *dev) return; } -/* - * Called with struct se_hba->device_lock held. - */ -void se_clear_dev_ports(struct se_device *dev) -{ - struct se_hba *hba = dev->se_hba; - struct se_lun *lun; - struct se_portal_group *tpg; - struct se_port *sep, *sep_tmp; - - spin_lock(&dev->se_port_lock); - list_for_each_entry_safe(sep, sep_tmp, &dev->dev_sep_list, sep_list) { - spin_unlock(&dev->se_port_lock); - spin_unlock(&hba->device_lock); - - lun = sep->sep_lun; - tpg = sep->sep_tpg; - spin_lock(&lun->lun_sep_lock); - if (lun->lun_se_dev == NULL) { - spin_unlock(&lun->lun_sep_lock); - continue; - } - spin_unlock(&lun->lun_sep_lock); - - core_dev_del_lun(tpg, lun->unpacked_lun); - - spin_lock(&hba->device_lock); - spin_lock(&dev->se_port_lock); - } - spin_unlock(&dev->se_port_lock); - - return; -} - /* se_free_virtual_device(): * * Used for IBLOCK, RAMDISK, and FILEIO Transport Drivers. */ int se_free_virtual_device(struct se_device *dev, struct se_hba *hba) { - spin_lock(&hba->device_lock); - se_clear_dev_ports(dev); - spin_unlock(&hba->device_lock); + if (!list_empty(&dev->dev_sep_list)) + dump_stack(); core_alua_free_lu_gp_mem(dev); se_release_device_for_hba(dev); diff --git a/drivers/target/target_core_hba.c b/drivers/target/target_core_hba.c index 6ec51cb..0b8f8da 100644 --- a/drivers/target/target_core_hba.c +++ b/drivers/target/target_core_hba.c @@ -151,19 +151,8 @@ out_free_hba: int core_delete_hba(struct se_hba *hba) { - struct se_device *dev, *dev_tmp; - - spin_lock(&hba->device_lock); - list_for_each_entry_safe(dev, dev_tmp, &hba->hba_dev_list, dev_list) { - - se_clear_dev_ports(dev); - spin_unlock(&hba->device_lock); - - se_release_device_for_hba(dev); - - spin_lock(&hba->device_lock); - } - spin_unlock(&hba->device_lock); + if (!list_empty(&hba->hba_dev_list)) + dump_stack(); hba->transport->detach_hba(hba); -- cgit v0.10.2 From 5dd7ed2e811d5cd12f31fb7f0c5ad0107d494a12 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 14 Mar 2011 04:06:01 -0700 Subject: [SCSI] target: Minor sparse warning fixes and annotations This patch addresses the majority of sparse warnings and adds proper locking annotations. It also fixes the dubious one-bit signed bitfield, for which the signed one-bit types can be 0 or -1 which can cause a problem if someone ever checks if (foo->lu_gp_assoc == 1). The current code is fine because everyone just checks zero vs non-zero. But Sparse complains about it so lets change it. The warnings look like this: include/target/target_core_base.h:228:26: error: dubious one-bit signed bitfield Signed-off-by: Dan Carpenter Signed-off-by: Fubo Chen Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 9e182bd..3fb8e32 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -589,6 +589,7 @@ static void core_export_port( * Called with struct se_device->se_port_lock spinlock held. */ static void core_release_port(struct se_device *dev, struct se_port *port) + __releases(&dev->se_port_lock) __acquires(&dev->se_port_lock) { /* * Wait for any port reference for PR ALL_TG_PT=1 operation diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c index a3c695a..d57ad67 100644 --- a/drivers/target/target_core_fabric_lib.c +++ b/drivers/target/target_core_fabric_lib.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 51fd309..7ff6a35 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -441,6 +441,7 @@ static struct se_device *pscsi_create_type_disk( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; @@ -488,6 +489,7 @@ static struct se_device *pscsi_create_type_rom( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; @@ -522,6 +524,7 @@ static struct se_device *pscsi_create_type_other( struct pscsi_dev_virt *pdv, struct se_subsystem_dev *se_dev, struct se_hba *hba) + __releases(sh->host_lock) { struct se_device *dev; struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)pdv->pdv_se_hba->hba_ptr; diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h index 13badfb..3ea19e2 100644 --- a/drivers/target/target_core_rd.h +++ b/drivers/target/target_core_rd.h @@ -14,8 +14,6 @@ #define RD_BLOCKSIZE 512 #define RD_MAX_SECTORS 1024 -extern struct kmem_cache *se_mem_cache; - /* Used in target_core_init_configfs() for virtual LUN 0 access */ int __init rd_module_init(void); void rd_module_exit(void); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index ff9ace0..80df405 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -227,8 +227,6 @@ static void transport_remove_cmd_from_queue(struct se_cmd *cmd, static int transport_set_sense_codes(struct se_cmd *cmd, u8 asc, u8 ascq); static void transport_stop_all_task_timers(struct se_cmd *cmd); -int transport_emulate_control_cdb(struct se_task *task); - int init_se_global(void) { struct se_global *global; @@ -4395,7 +4393,7 @@ out: return -1; } -extern u32 transport_calc_sg_num( +u32 transport_calc_sg_num( struct se_task *task, struct se_mem *in_se_mem, u32 task_offset) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 0828b6c..bc93b781 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -239,7 +239,7 @@ struct t10_alua_lu_gp { } ____cacheline_aligned; struct t10_alua_lu_gp_member { - int lu_gp_assoc:1; + bool lu_gp_assoc; atomic_t lu_gp_mem_ref_cnt; spinlock_t lu_gp_mem_lock; struct t10_alua_lu_gp *lu_gp; @@ -271,7 +271,7 @@ struct t10_alua_tg_pt_gp { } ____cacheline_aligned; struct t10_alua_tg_pt_gp_member { - int tg_pt_gp_assoc:1; + bool tg_pt_gp_assoc; atomic_t tg_pt_gp_mem_ref_cnt; spinlock_t tg_pt_gp_mem_lock; struct t10_alua_tg_pt_gp *tg_pt_gp; @@ -336,7 +336,7 @@ struct t10_pr_registration { int pr_res_type; int pr_res_scope; /* Used for fabric initiator WWPNs using a ISID */ - int isid_present_at_reg:1; + bool isid_present_at_reg; u32 pr_res_mapped_lun; u32 pr_aptpl_target_lun; u32 pr_res_generation; @@ -418,7 +418,7 @@ struct se_transport_task { unsigned long long t_task_lba; int t_tasks_failed; int t_tasks_fua; - int t_tasks_bidi:1; + bool t_tasks_bidi; u32 t_task_cdbs; u32 t_tasks_check; u32 t_tasks_no; @@ -470,7 +470,7 @@ struct se_task { u8 task_flags; int task_error_status; int task_state_flags; - int task_padded_sg:1; + bool task_padded_sg; unsigned long long task_lba; u32 task_no; u32 task_sectors; @@ -583,7 +583,7 @@ struct se_ua { struct se_node_acl { char initiatorname[TRANSPORT_IQN_LEN]; /* Used to signal demo mode created ACL, disabled by default */ - int dynamic_node_acl:1; + bool dynamic_node_acl; u32 queue_depth; u32 acl_index; u64 num_cmds; @@ -632,7 +632,7 @@ struct se_lun_acl { } ____cacheline_aligned; struct se_dev_entry { - int def_pr_registered:1; + bool def_pr_registered; /* See transport_lunflags_table */ u32 lun_flags; u32 deve_cmds; diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h index f3ac12b..5eb8b1a 100644 --- a/include/target/target_core_fabric_ops.h +++ b/include/target/target_core_fabric_ops.h @@ -8,7 +8,7 @@ struct target_core_fabric_ops { * for scatterlist chaining using transport_do_task_sg_link(), * disabled by default */ - int task_sg_chaining:1; + bool task_sg_chaining; char *(*get_fabric_name)(void); u8 (*get_fabric_proto_ident)(struct se_portal_group *); char *(*tpg_get_wwn)(struct se_portal_group *); diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 2e8ec51..59aa464 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -109,6 +109,8 @@ struct se_mem; struct se_subsystem_api; +extern struct kmem_cache *se_mem_cache; + extern int init_se_global(void); extern void release_se_global(void); extern void init_scsi_index_table(void); @@ -190,6 +192,8 @@ extern void transport_generic_process_write(struct se_cmd *); extern int transport_generic_do_tmr(struct se_cmd *); /* From target_core_alua.c */ extern int core_alua_check_nonop_delay(struct se_cmd *); +/* From target_core_cdb.c */ +extern int transport_emulate_control_cdb(struct se_task *); /* * Each se_transport_task_t can have N number of possible struct se_task's -- cgit v0.10.2 From 35ce9e26d7e0674892f77a9172c898dfcba50064 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:02 -0700 Subject: [SCSI] target: Remove spurious double cast from structure macro accessors Reported-by: Fubo Chen Cc: James Bottomley Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index bc93b781..b3a62e4 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -494,8 +494,8 @@ struct se_task { struct list_head t_state_list; } ____cacheline_aligned; -#define TASK_CMD(task) ((struct se_cmd *)task->task_se_cmd) -#define TASK_DEV(task) ((struct se_device *)task->se_dev) +#define TASK_CMD(task) ((task)->task_se_cmd) +#define TASK_DEV(task) ((task)->se_dev) struct se_cmd { /* SAM response code being sent to initiator */ @@ -551,8 +551,8 @@ struct se_cmd { void (*transport_complete_callback)(struct se_cmd *); } ____cacheline_aligned; -#define T_TASK(cmd) ((struct se_transport_task *)(cmd->t_task)) -#define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo) +#define T_TASK(cmd) ((cmd)->t_task) +#define CMD_TFO(cmd) ((cmd)->se_tfo) struct se_tmr_req { /* Task Management function to be preformed */ @@ -615,8 +615,8 @@ struct se_session { struct list_head sess_acl_list; } ____cacheline_aligned; -#define SE_SESS(cmd) ((struct se_session *)(cmd)->se_sess) -#define SE_NODE_ACL(sess) ((struct se_node_acl *)(sess)->se_node_acl) +#define SE_SESS(cmd) ((cmd)->se_sess) +#define SE_NODE_ACL(sess) ((sess)->se_node_acl) struct se_device; struct se_transform_info; @@ -803,8 +803,8 @@ struct se_device { struct list_head g_se_dev_list; } ____cacheline_aligned; -#define SE_DEV(cmd) ((struct se_device *)(cmd)->se_lun->lun_se_dev) -#define SU_DEV(dev) ((struct se_subsystem_dev *)(dev)->se_sub_dev) +#define SE_DEV(cmd) ((cmd)->se_lun->lun_se_dev) +#define SU_DEV(dev) ((dev)->se_sub_dev) #define DEV_ATTRIB(dev) (&(dev)->se_sub_dev->se_dev_attrib) #define DEV_T10_WWN(dev) (&(dev)->se_sub_dev->t10_wwn) @@ -832,7 +832,7 @@ struct se_hba { struct se_subsystem_api *transport; } ____cacheline_aligned; -#define SE_HBA(d) ((struct se_hba *)(d)->se_hba) +#define SE_HBA(dev) ((dev)->se_hba) struct se_lun { /* See transport_lun_status_table */ @@ -852,7 +852,7 @@ struct se_lun { struct se_port *lun_sep; } ____cacheline_aligned; -#define SE_LUN(c) ((struct se_lun *)(c)->se_lun) +#define SE_LUN(cmd) ((cmd)->se_lun) struct scsi_port_stats { u64 cmd_pdus; @@ -919,7 +919,7 @@ struct se_portal_group { struct config_group tpg_param_group; } ____cacheline_aligned; -#define TPG_TFO(se_tpg) ((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo) +#define TPG_TFO(se_tpg) ((se_tpg)->se_tpg_tfo) struct se_wwn { struct target_fabric_configfs *wwn_tf; -- cgit v0.10.2 From 065f97161b2da30b13000b1d9f64adff7e01e270 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 14 Mar 2011 04:06:03 -0700 Subject: [SCSI] target: Convert rd_build_device_space() to use errno This patch converts rd_build_device_space() to return errno usage for failures in rd_create_virtdevice(). Signed-off-by: Dan Carpenter Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index f36094f..7837dd3 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -150,7 +150,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (rd_dev->rd_page_count <= 0) { printk(KERN_ERR "Illegal page count: %u for Ramdisk device\n", rd_dev->rd_page_count); - return -1; + return -EINVAL; } total_sg_needed = rd_dev->rd_page_count; @@ -160,7 +160,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(sg_table)) { printk(KERN_ERR "Unable to allocate memory for Ramdisk" " scatterlist tables\n"); - return -1; + return -ENOMEM; } rd_dev->sg_table_array = sg_table; @@ -175,7 +175,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(sg)) { printk(KERN_ERR "Unable to allocate scatterlist array" " for struct rd_dev\n"); - return -1; + return -ENOMEM; } sg_init_table((struct scatterlist *)&sg[0], sg_per_table); @@ -191,7 +191,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev) if (!(pg)) { printk(KERN_ERR "Unable to allocate scatterlist" " pages for struct rd_dev_sg_table\n"); - return -1; + return -ENOMEM; } sg_assign_page(&sg[j], pg); sg[j].length = PAGE_SIZE; @@ -253,15 +253,14 @@ static struct se_device *rd_create_virtdevice( struct se_dev_limits dev_limits; struct rd_dev *rd_dev = p; struct rd_host *rd_host = hba->hba_ptr; - int dev_flags = 0, ret = -EINVAL; + int dev_flags = 0, ret; char prod[16], rev[4]; memset(&dev_limits, 0, sizeof(struct se_dev_limits)); - if (rd_build_device_space(rd_dev) < 0) { - ret = -ENOMEM; + ret = rd_build_device_space(rd_dev); + if (ret < 0) goto fail; - } snprintf(prod, 16, "RAMDISK-%s", (rd_dev->rd_direct) ? "DR" : "MCP"); snprintf(rev, 4, "%s", (rd_dev->rd_direct) ? RD_DR_VERSION : -- cgit v0.10.2 From 5c6cd613196558ba50ba97268b6d225c8d2f56d6 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:04 -0700 Subject: [SCSI] target: Convert TMR REQ/RSP definitions to target namespace This patch changes include/target/target_core_tmr.h code to use target specific 'TMR_*' prefixed definitions for fabric independent SCSI Task Management Request/Request naming in include/scsi/scsi.h definitions for mainline target code. Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 80df405..20ab27c 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -5832,31 +5832,26 @@ int transport_generic_do_tmr(struct se_cmd *cmd) int ret; switch (tmr->function) { - case ABORT_TASK: + case TMR_ABORT_TASK: ref_cmd = tmr->ref_cmd; tmr->response = TMR_FUNCTION_REJECTED; break; - case ABORT_TASK_SET: - case CLEAR_ACA: - case CLEAR_TASK_SET: + case TMR_ABORT_TASK_SET: + case TMR_CLEAR_ACA: + case TMR_CLEAR_TASK_SET: tmr->response = TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED; break; - case LUN_RESET: + case TMR_LUN_RESET: ret = core_tmr_lun_reset(dev, tmr, NULL, NULL); tmr->response = (!ret) ? TMR_FUNCTION_COMPLETE : TMR_FUNCTION_REJECTED; break; -#if 0 - case TARGET_WARM_RESET: - transport_generic_host_reset(dev->se_hba); + case TMR_TARGET_WARM_RESET: tmr->response = TMR_FUNCTION_REJECTED; break; - case TARGET_COLD_RESET: - transport_generic_host_reset(dev->se_hba); - transport_generic_cold_reset(dev->se_hba); + case TMR_TARGET_COLD_RESET: tmr->response = TMR_FUNCTION_REJECTED; break; -#endif default: printk(KERN_ERR "Uknown TMR function: 0x%02x.\n", tmr->function); diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h index 6c8248b..bd55968 100644 --- a/include/target/target_core_tmr.h +++ b/include/target/target_core_tmr.h @@ -1,37 +1,29 @@ #ifndef TARGET_CORE_TMR_H #define TARGET_CORE_TMR_H -/* task management function values */ -#ifdef ABORT_TASK -#undef ABORT_TASK -#endif /* ABORT_TASK */ -#define ABORT_TASK 1 -#ifdef ABORT_TASK_SET -#undef ABORT_TASK_SET -#endif /* ABORT_TASK_SET */ -#define ABORT_TASK_SET 2 -#ifdef CLEAR_ACA -#undef CLEAR_ACA -#endif /* CLEAR_ACA */ -#define CLEAR_ACA 3 -#ifdef CLEAR_TASK_SET -#undef CLEAR_TASK_SET -#endif /* CLEAR_TASK_SET */ -#define CLEAR_TASK_SET 4 -#define LUN_RESET 5 -#define TARGET_WARM_RESET 6 -#define TARGET_COLD_RESET 7 -#define TASK_REASSIGN 8 +/* fabric independent task management function values */ +enum tcm_tmreq_table { + TMR_ABORT_TASK = 1, + TMR_ABORT_TASK_SET = 2, + TMR_CLEAR_ACA = 3, + TMR_CLEAR_TASK_SET = 4, + TMR_LUN_RESET = 5, + TMR_TARGET_WARM_RESET = 6, + TMR_TARGET_COLD_RESET = 7, + TMR_FABRIC_TMR = 255, +}; -/* task management response values */ -#define TMR_FUNCTION_COMPLETE 0 -#define TMR_TASK_DOES_NOT_EXIST 1 -#define TMR_LUN_DOES_NOT_EXIST 2 -#define TMR_TASK_STILL_ALLEGIANT 3 -#define TMR_TASK_FAILOVER_NOT_SUPPORTED 4 -#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5 -#define TMR_FUNCTION_AUTHORIZATION_FAILED 6 -#define TMR_FUNCTION_REJECTED 255 +/* fabric independent task management response values */ +enum tcm_tmrsp_table { + TMR_FUNCTION_COMPLETE = 0, + TMR_TASK_DOES_NOT_EXIST = 1, + TMR_LUN_DOES_NOT_EXIST = 2, + TMR_TASK_STILL_ALLEGIANT = 3, + TMR_TASK_FAILOVER_NOT_SUPPORTED = 4, + TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5, + TMR_FUNCTION_AUTHORIZATION_FAILED = 6, + TMR_FUNCTION_REJECTED = 255, +}; extern struct kmem_cache *se_tmr_req_cache; -- cgit v0.10.2 From 872105689eeccbcd77377d6a29f69bba3b0cbe3b Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 14 Mar 2011 04:06:05 -0700 Subject: [SCSI] target: Avoid mem leak and needless work in transport_generic_get_mem In drivers/target/target_core_transport.c::transport_generic_get_mem() there are a few potential memory leaks in the error paths. This patch makes sure that we free previously allocated memory when other allocations fail. It also moves some work (INIT_LIST_HEAD() and assignment to se_mem->se_len) below all the allocations so that if something fails we don't do the work at all. Signed-off-by: Jesper Juhl Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 20ab27c..67d4286 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -4357,11 +4357,9 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) printk(KERN_ERR "Unable to allocate struct se_mem\n"); goto out; } - INIT_LIST_HEAD(&se_mem->se_list); - se_mem->se_len = (length > dma_size) ? dma_size : length; /* #warning FIXME Allocate contigous pages for struct se_mem elements */ - se_mem->se_page = (struct page *) alloc_pages(GFP_KERNEL, 0); + se_mem->se_page = alloc_pages(GFP_KERNEL, 0); if (!(se_mem->se_page)) { printk(KERN_ERR "alloc_pages() failed\n"); goto out; @@ -4372,6 +4370,8 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) printk(KERN_ERR "kmap_atomic() failed\n"); goto out; } + INIT_LIST_HEAD(&se_mem->se_list); + se_mem->se_len = (length > dma_size) ? dma_size : length; memset(buf, 0, se_mem->se_len); kunmap_atomic(buf, KM_IRQ0); @@ -4390,6 +4390,9 @@ transport_generic_get_mem(struct se_cmd *cmd, u32 length, u32 dma_size) return 0; out: + if (se_mem) + __free_pages(se_mem->se_page, 0); + kmem_cache_free(se_mem_cache, se_mem); return -1; } -- cgit v0.10.2 From 12a18bdc27f81ba9d0a08a2462a49d339fff8b2d Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:06 -0700 Subject: [SCSI] target: Fix bogus return in transport_add_device_to_core_hba failure path This patch removes a bogus conditional+return check within the failure path of transport_add_device_to_core_hba(). This breakage was introduced during the v4 conversion to remove struct se_cmd passthrough ops for INQUIRY / READ_CAPCITY during struct se_device creation and registration process. Reported-by: Julia Lawall Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 67d4286..bf6aa8a 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1620,7 +1620,7 @@ struct se_device *transport_add_device_to_core_hba( const char *inquiry_prod, const char *inquiry_rev) { - int ret = 0, force_pt; + int force_pt; struct se_device *dev; dev = kzalloc(sizeof(struct se_device), GFP_KERNEL); @@ -1737,9 +1737,8 @@ struct se_device *transport_add_device_to_core_hba( } scsi_dump_inquiry(dev); + return dev; out: - if (!ret) - return dev; kthread_stop(dev->process_thread); spin_lock(&hba->device_lock); -- cgit v0.10.2 From f45934e08c9640faa5d960633eaf840c29ea33a8 Mon Sep 17 00:00:00 2001 From: Fubo Chen Date: Mon, 14 Mar 2011 04:06:07 -0700 Subject: [SCSI] tcm_mod_builder.py: Fix generated *_drop_nodeacl() handler This patch adds the missing core_tpg_del_initiator_node_acl() call required by fabric modules for struct se_node_acl->acl_group context shutdown via target_core_fabric_configfs.c:target_fabric_nacl_base_release() -> struct target_core_fabric_ops->fabric_drop_nodeacl() for tcm_mod_builder.py generated $FABRIC_MOD_configfs.c skeleton code. Signed-off-by: Fubo Chen Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index 89af6c7..7ef9b84 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -289,6 +289,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "{\n" buf += " struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n" buf += " struct " + fabric_mod_name + "_nacl, se_node_acl);\n" + buf += " core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n" buf += " kfree(nacl);\n" buf += "}\n\n" -- cgit v0.10.2 From 58c3e6477f3840df7d9b346627420bc7b246cdc8 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:08 -0700 Subject: [SCSI] target: Fix FILEIO fd_buffered_io= token typo This patch fixes a token typo for the TCM/FILEIO match_table_t used for toggling O_SYNC usage for individual struct file backend access. Reported-by: Christophe Fergeau Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 03fa40f..02f553a 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -514,7 +514,7 @@ enum { static match_table_t tokens = { {Opt_fd_dev_name, "fd_dev_name=%s"}, {Opt_fd_dev_size, "fd_dev_size=%s"}, - {Opt_fd_buffered_io, "fd_buffered_id=%d"}, + {Opt_fd_buffered_io, "fd_buffered_io=%d"}, {Opt_err, NULL} }; -- cgit v0.10.2 From 54550fabfecdb71e0deb51999cca7d28bb4299ed Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 14 Mar 2011 04:06:09 -0700 Subject: [SCSI] target: Add __init/__exit annotation for target_core_[init,exit]_configfs This patch fixes the follownig section mismatch warning: WARNING: vmlinux.o(.text+0x21617a): Section mismatch in reference from the function target_core_init_configfs() to the function .init.text:rd_module_init() The function target_core_init_configfs() references the function __init rd_module_init(). This is often because target_core_init_configfs() lacks a __init annotation or the annotation of rd_module_init is wrong. Signed-off-by: Axel Lin Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 9721ef2..a38fec4 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -3075,7 +3075,7 @@ static struct config_item_type target_core_cit = { /* Stop functions for struct config_item_type target_core_hba_cit */ -static int target_core_init_configfs(void) +static int __init target_core_init_configfs(void) { struct config_group *target_cg, *hba_cg = NULL, *alua_cg = NULL; struct config_group *lu_gp_cg = NULL; @@ -3207,7 +3207,7 @@ out_global: return -1; } -static void target_core_exit_configfs(void) +static void __exit target_core_exit_configfs(void) { struct configfs_subsystem *subsys; struct config_group *hba_cg, *alua_cg, *lu_gp_cg; -- cgit v0.10.2 From 15fb48cc40be170423fe8ddd17666aa6175315e3 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:10 -0700 Subject: [SCSI] target: update version to v4.0.0-rc7-ml Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index b3a62e4..79f2e0a 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -9,7 +9,7 @@ #include #include -#define TARGET_CORE_MOD_VERSION "v4.0.0-rc6" +#define TARGET_CORE_MOD_VERSION "v4.0.0-rc7-ml" #define SHUTDOWN_SIGS (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT)) /* Used by transport_generic_allocate_iovecs() */ -- cgit v0.10.2 From 12d233842987d9972957419e427987b94f7bd7b4 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 14 Mar 2011 04:06:11 -0700 Subject: [SCSI] target: add initial statistics This patch adds a target_core_mib.c statistics conversion for backend context struct se_subsystem_dev + struct se_device config_group based statistics in target_core_device.c using CONFIGFS_EATTR() based struct config_item_types from target_core_stat.c code. The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_dev, scsi_lu, and scsi_tgt_dev output from within individual: /sys/kernel/config/target/core/$HBA/DEV/ The legacy procfs output now appear as individual configfs attributes under: *) $HBA/$DEV/statistics/scsi_dev: |-- indx |-- inst |-- ports `-- role *) $HBA/$DEV/statistics/scsi_lu: |-- creation_time |-- dev |-- dev_type |-- full_stat |-- hs_num_cmds |-- indx |-- inst |-- lu_name |-- lun |-- num_cmds |-- prod |-- read_mbytes |-- resets |-- rev |-- state_bit |-- status |-- vend `-- write_mbytes *) $HBA/$DEV/statistics/scsi_tgt_dev: |-- indx |-- inst |-- non_access_lus |-- num_lus |-- resets `-- status The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_port, scsi_tgt_port and scsi_transport output from within individual: /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/ The legacy procfs output now appear as individual configfs attributes under: *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_port |-- busy_count |-- dev |-- indx |-- inst `-- role *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_tgt_port |-- dev |-- hs_in_cmds |-- in_cmds |-- indx |-- inst |-- name |-- port_index |-- read_mbytes `-- write_mbytes *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_transport |-- dev_name |-- device |-- indx `-- inst The conversion from backend /proc/scsi_target/mib/ context output to configfs default groups+attributes include scsi_att_intr_port and scsi_auth_intr output from within individual: /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/ The legacy procfs output now appear as individual configfs attributes under: *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_att_intr_port |-- dev |-- indx |-- inst |-- port |-- port_auth_indx `-- port_ident *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_auth_intr |-- att_count |-- creation_time |-- dev |-- dev_or_port |-- hs_num_cmds |-- indx |-- inst |-- intr_name |-- map_indx |-- num_cmds |-- port |-- read_mbytes |-- row_status `-- write_mbytes Also, this includes adding struct target_fabric_configfs_template-> tfc_wwn_fabric_stats_cit and ->tfc_tpg_nacl_stat_cit respectively for use during target_core_fabric_configfs.c:target_fabric_setup_cits() Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 050ee65..4f3cb78 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -12,7 +12,8 @@ target_core_mod-y := target_core_configfs.o \ target_core_transport.o \ target_core_cdb.o \ target_core_ua.o \ - target_core_rd.o + target_core_rd.o \ + target_core_stat.o obj-$(CONFIG_TARGET_CORE) += target_core_mod.o diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index a38fec4..a5f44a6 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -3,8 +3,8 @@ * * This file contains ConfigFS logic for the Generic Target Engine project. * - * Copyright (c) 2008-2010 Rising Tide Systems - * Copyright (c) 2008-2010 Linux-iSCSI.org + * Copyright (c) 2008-2011 Rising Tide Systems + * Copyright (c) 2008-2011 Linux-iSCSI.org * * Nicholas A. Bellinger * @@ -50,6 +50,7 @@ #include "target_core_hba.h" #include "target_core_pr.h" #include "target_core_rd.h" +#include "target_core_stat.h" static struct list_head g_tf_list; static struct mutex g_tf_lock; @@ -2709,6 +2710,34 @@ static struct config_item_type target_core_alua_cit = { /* End functions for struct config_item_type target_core_alua_cit */ +/* Start functions for struct config_item_type target_core_stat_cit */ + +static struct config_group *target_core_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_core_stat_group_ops = { + .make_group = &target_core_stat_mkdir, + .drop_item = &target_core_stat_rmdir, +}; + +static struct config_item_type target_core_stat_cit = { + .ct_group_ops = &target_core_stat_group_ops, + .ct_owner = THIS_MODULE, +}; + +/* End functions for struct config_item_type target_core_stat_cit */ + /* Start functions for struct config_item_type target_core_hba_cit */ static struct config_group *target_core_make_subdev( @@ -2721,10 +2750,12 @@ static struct config_group *target_core_make_subdev( struct config_item *hba_ci = &group->cg_item; struct se_hba *hba = item_to_hba(hba_ci); struct config_group *dev_cg = NULL, *tg_pt_gp_cg = NULL; + struct config_group *dev_stat_grp = NULL; + int errno = -ENOMEM, ret; - if (mutex_lock_interruptible(&hba->hba_access_mutex)) - return NULL; - + ret = mutex_lock_interruptible(&hba->hba_access_mutex); + if (ret) + return ERR_PTR(ret); /* * Locate the struct se_subsystem_api from parent's struct se_hba. */ @@ -2754,7 +2785,7 @@ static struct config_group *target_core_make_subdev( se_dev->se_dev_hba = hba; dev_cg = &se_dev->se_dev_group; - dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 6, + dev_cg->default_groups = kzalloc(sizeof(struct config_group) * 7, GFP_KERNEL); if (!(dev_cg->default_groups)) goto out; @@ -2786,13 +2817,17 @@ static struct config_group *target_core_make_subdev( &target_core_dev_wwn_cit); config_group_init_type_name(&se_dev->t10_alua.alua_tg_pt_gps_group, "alua", &target_core_alua_tg_pt_gps_cit); + config_group_init_type_name(&se_dev->dev_stat_grps.stat_group, + "statistics", &target_core_stat_cit); + dev_cg->default_groups[0] = &se_dev->se_dev_attrib.da_group; dev_cg->default_groups[1] = &se_dev->se_dev_pr_group; dev_cg->default_groups[2] = &se_dev->t10_wwn.t10_wwn_group; dev_cg->default_groups[3] = &se_dev->t10_alua.alua_tg_pt_gps_group; - dev_cg->default_groups[4] = NULL; + dev_cg->default_groups[4] = &se_dev->dev_stat_grps.stat_group; + dev_cg->default_groups[5] = NULL; /* - * Add core/$HBA/$DEV/alua/tg_pt_gps/default_tg_pt_gp + * Add core/$HBA/$DEV/alua/default_tg_pt_gp */ tg_pt_gp = core_alua_allocate_tg_pt_gp(se_dev, "default_tg_pt_gp", 1); if (!(tg_pt_gp)) @@ -2812,6 +2847,17 @@ static struct config_group *target_core_make_subdev( tg_pt_gp_cg->default_groups[0] = &tg_pt_gp->tg_pt_gp_group; tg_pt_gp_cg->default_groups[1] = NULL; T10_ALUA(se_dev)->default_tg_pt_gp = tg_pt_gp; + /* + * Add core/$HBA/$DEV/statistics/ default groups + */ + dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group; + dev_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 4, + GFP_KERNEL); + if (!dev_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate dev_stat_grp->default_groups\n"); + goto out; + } + target_stat_setup_dev_default_groups(se_dev); printk(KERN_INFO "Target_Core_ConfigFS: Allocated struct se_subsystem_dev:" " %p se_dev_su_ptr: %p\n", se_dev, se_dev->se_dev_su_ptr); @@ -2823,6 +2869,8 @@ out: core_alua_free_tg_pt_gp(T10_ALUA(se_dev)->default_tg_pt_gp); T10_ALUA(se_dev)->default_tg_pt_gp = NULL; } + if (dev_stat_grp) + kfree(dev_stat_grp->default_groups); if (tg_pt_gp_cg) kfree(tg_pt_gp_cg->default_groups); if (dev_cg) @@ -2832,7 +2880,7 @@ out: kfree(se_dev); unlock: mutex_unlock(&hba->hba_access_mutex); - return NULL; + return ERR_PTR(errno); } static void target_core_drop_subdev( @@ -2844,7 +2892,7 @@ static void target_core_drop_subdev( struct se_hba *hba; struct se_subsystem_api *t; struct config_item *df_item; - struct config_group *dev_cg, *tg_pt_gp_cg; + struct config_group *dev_cg, *tg_pt_gp_cg, *dev_stat_grp; int i; hba = item_to_hba(&se_dev->se_dev_hba->hba_group.cg_item); @@ -2856,6 +2904,14 @@ static void target_core_drop_subdev( list_del(&se_dev->g_se_dev_list); spin_unlock(&se_global->g_device_lock); + dev_stat_grp = &DEV_STAT_GRP(se_dev)->stat_group; + for (i = 0; dev_stat_grp->default_groups[i]; i++) { + df_item = &dev_stat_grp->default_groups[i]->cg_item; + dev_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(dev_stat_grp->default_groups); + tg_pt_gp_cg = &T10_ALUA(se_dev)->alua_tg_pt_gps_group; for (i = 0; tg_pt_gp_cg->default_groups[i]; i++) { df_item = &tg_pt_gp_cg->default_groups[i]->cg_item; diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index b65d1c8..07ab5a3 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -4,10 +4,10 @@ * This file contains generic fabric module configfs infrastructure for * TCM v4.x code * - * Copyright (c) 2010 Rising Tide Systems - * Copyright (c) 2010 Linux-iSCSI.org + * Copyright (c) 2010,2011 Rising Tide Systems + * Copyright (c) 2010,2011 Linux-iSCSI.org * - * Copyright (c) 2010 Nicholas A. Bellinger + * Copyright (c) Nicholas A. Bellinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -48,6 +48,7 @@ #include "target_core_alua.h" #include "target_core_hba.h" #include "target_core_pr.h" +#include "target_core_stat.h" #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ @@ -241,6 +242,32 @@ TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, /* End of tfc_tpg_mappedlun_cit */ +/* Start of tfc_tpg_mappedlun_port_cit */ + +static struct config_group *target_core_mappedlun_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_mappedlun_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { + .make_group = target_core_mappedlun_stat_mkdir, + .drop_item = target_core_mappedlun_stat_rmdir, +}; + +TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, + NULL); + +/* End of tfc_tpg_mappedlun_port_cit */ + /* Start of tfc_tpg_nacl_attrib_cit */ CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); @@ -294,6 +321,7 @@ static struct config_group *target_fabric_make_mappedlun( struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; struct se_lun_acl *lacl; struct config_item *acl_ci; + struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; char *buf; unsigned long mapped_lun; int ret = 0; @@ -330,15 +358,42 @@ static struct config_group *target_fabric_make_mappedlun( lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun, config_item_name(acl_ci), &ret); - if (!(lacl)) + if (!(lacl)) { + ret = -EINVAL; goto out; + } + + lacl_cg = &lacl->se_lun_group; + lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, + GFP_KERNEL); + if (!lacl_cg->default_groups) { + printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n"); + ret = -ENOMEM; + goto out; + } config_group_init_type_name(&lacl->se_lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); + config_group_init_type_name(&lacl->ml_stat_grps.stat_group, + "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); + lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; + lacl_cg->default_groups[1] = NULL; + + ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, + GFP_KERNEL); + if (!ml_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate ml_stat_grp->default_groups\n"); + ret = -ENOMEM; + goto out; + } + target_stat_setup_mappedlun_default_groups(lacl); kfree(buf); return &lacl->se_lun_group; out: + if (lacl_cg) + kfree(lacl_cg->default_groups); kfree(buf); return ERR_PTR(ret); } @@ -347,6 +402,28 @@ static void target_fabric_drop_mappedlun( struct config_group *group, struct config_item *item) { + struct se_lun_acl *lacl = container_of(to_config_group(item), + struct se_lun_acl, se_lun_group); + struct config_item *df_item; + struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; + int i; + + ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + for (i = 0; ml_stat_grp->default_groups[i]; i++) { + df_item = &ml_stat_grp->default_groups[i]->cg_item; + ml_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(ml_stat_grp->default_groups); + + lacl_cg = &lacl->se_lun_group; + for (i = 0; lacl_cg->default_groups[i]; i++) { + df_item = &lacl_cg->default_groups[i]->cg_item; + lacl_cg->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(lacl_cg->default_groups); + config_item_put(item); } @@ -376,6 +453,15 @@ TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, /* End of tfc_tpg_nacl_base_cit */ +/* Start of tfc_node_fabric_stats_cit */ +/* + * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group + * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] + */ +TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); + +/* End of tfc_wwn_fabric_stats_cit */ + /* Start of tfc_tpg_nacl_cit */ static struct config_group *target_fabric_make_nodeacl( @@ -402,7 +488,8 @@ static struct config_group *target_fabric_make_nodeacl( nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; nacl_cg->default_groups[2] = &se_nacl->acl_param_group; - nacl_cg->default_groups[3] = NULL; + nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; + nacl_cg->default_groups[4] = NULL; config_group_init_type_name(&se_nacl->acl_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); @@ -412,6 +499,9 @@ static struct config_group *target_fabric_make_nodeacl( &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); config_group_init_type_name(&se_nacl->acl_param_group, "param", &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); + config_group_init_type_name(&se_nacl->acl_fabric_stat_group, + "fabric_statistics", + &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); return &se_nacl->acl_group; } @@ -758,6 +848,31 @@ TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_at /* End of tfc_tpg_port_cit */ +/* Start of tfc_tpg_port_stat_cit */ + +static struct config_group *target_core_port_stat_mkdir( + struct config_group *group, + const char *name) +{ + return ERR_PTR(-ENOSYS); +} + +static void target_core_port_stat_rmdir( + struct config_group *group, + struct config_item *item) +{ + return; +} + +static struct configfs_group_operations target_fabric_port_stat_group_ops = { + .make_group = target_core_port_stat_mkdir, + .drop_item = target_core_port_stat_rmdir, +}; + +TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); + +/* End of tfc_tpg_port_stat_cit */ + /* Start of tfc_tpg_lun_cit */ static struct config_group *target_fabric_make_lun( @@ -768,7 +883,9 @@ static struct config_group *target_fabric_make_lun( struct se_portal_group *se_tpg = container_of(group, struct se_portal_group, tpg_lun_group); struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; + struct config_group *lun_cg = NULL, *port_stat_grp = NULL; unsigned long unpacked_lun; + int errno; if (strstr(name, "lun_") != name) { printk(KERN_ERR "Unable to locate \'_\" in" @@ -782,16 +899,64 @@ static struct config_group *target_fabric_make_lun( if (!(lun)) return ERR_PTR(-EINVAL); + lun_cg = &lun->lun_group; + lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, + GFP_KERNEL); + if (!lun_cg->default_groups) { + printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n"); + return ERR_PTR(-ENOMEM); + } + config_group_init_type_name(&lun->lun_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); + config_group_init_type_name(&lun->port_stat_grps.stat_group, + "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); + lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; + lun_cg->default_groups[1] = NULL; + + port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, + GFP_KERNEL); + if (!port_stat_grp->default_groups) { + printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n"); + errno = -ENOMEM; + goto out; + } + target_stat_setup_port_default_groups(lun); return &lun->lun_group; +out: + if (lun_cg) + kfree(lun_cg->default_groups); + return ERR_PTR(errno); } static void target_fabric_drop_lun( struct config_group *group, struct config_item *item) { + struct se_lun *lun = container_of(to_config_group(item), + struct se_lun, lun_group); + struct config_item *df_item; + struct config_group *lun_cg, *port_stat_grp; + int i; + + port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + for (i = 0; port_stat_grp->default_groups[i]; i++) { + df_item = &port_stat_grp->default_groups[i]->cg_item; + port_stat_grp->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(port_stat_grp->default_groups); + + lun_cg = &lun->lun_group; + for (i = 0; lun_cg->default_groups[i]; i++) { + df_item = &lun_cg->default_groups[i]->cg_item; + lun_cg->default_groups[i] = NULL; + config_item_put(df_item); + } + kfree(lun_cg->default_groups); + config_item_put(item); } @@ -946,6 +1111,15 @@ TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, /* End of tfc_tpg_cit */ +/* Start of tfc_wwn_fabric_stats_cit */ +/* + * This is used as a placeholder for struct se_wwn->fabric_stat_group + * to allow fabrics access to ->fabric_stat_group->default_groups[] + */ +TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); + +/* End of tfc_wwn_fabric_stats_cit */ + /* Start of tfc_wwn_cit */ static struct config_group *target_fabric_make_wwn( @@ -966,8 +1140,17 @@ static struct config_group *target_fabric_make_wwn( return ERR_PTR(-EINVAL); wwn->wwn_tf = tf; + /* + * Setup default groups from pre-allocated wwn->wwn_default_groups + */ + wwn->wwn_group.default_groups = wwn->wwn_default_groups; + wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; + wwn->wwn_group.default_groups[1] = NULL; + config_group_init_type_name(&wwn->wwn_group, name, &TF_CIT_TMPL(tf)->tfc_tpg_cit); + config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", + &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); return &wwn->wwn_group; } @@ -976,6 +1159,18 @@ static void target_fabric_drop_wwn( struct config_group *group, struct config_item *item) { + struct se_wwn *wwn = container_of(to_config_group(item), + struct se_wwn, wwn_group); + struct config_item *df_item; + struct config_group *cg = &wwn->wwn_group; + int i; + + for (i = 0; cg->default_groups[i]; i++) { + df_item = &cg->default_groups[i]->cg_item; + cg->default_groups[i] = NULL; + config_item_put(df_item); + } + config_item_put(item); } @@ -1015,9 +1210,11 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf) { target_fabric_setup_discovery_cit(tf); target_fabric_setup_wwn_cit(tf); + target_fabric_setup_wwn_fabric_stats_cit(tf); target_fabric_setup_tpg_cit(tf); target_fabric_setup_tpg_base_cit(tf); target_fabric_setup_tpg_port_cit(tf); + target_fabric_setup_tpg_port_stat_cit(tf); target_fabric_setup_tpg_lun_cit(tf); target_fabric_setup_tpg_np_cit(tf); target_fabric_setup_tpg_np_base_cit(tf); @@ -1028,7 +1225,9 @@ int target_fabric_setup_cits(struct target_fabric_configfs *tf) target_fabric_setup_tpg_nacl_attrib_cit(tf); target_fabric_setup_tpg_nacl_auth_cit(tf); target_fabric_setup_tpg_nacl_param_cit(tf); + target_fabric_setup_tpg_nacl_stat_cit(tf); target_fabric_setup_tpg_mappedlun_cit(tf); + target_fabric_setup_tpg_mappedlun_stat_cit(tf); return 0; } diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c new file mode 100644 index 0000000..5e3a067 --- /dev/null +++ b/drivers/target/target_core_stat.c @@ -0,0 +1,1810 @@ +/******************************************************************************* + * Filename: target_core_stat.c + * + * Copyright (c) 2011 Rising Tide Systems + * Copyright (c) 2011 Linux-iSCSI.org + * + * Modern ConfigFS group context specific statistics based on original + * target_core_mib.c code + * + * Copyright (c) 2006-2007 SBE, Inc. All Rights Reserved. + * + * Nicholas A. Bellinger + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + ******************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "target_core_hba.h" + +#ifndef INITIAL_JIFFIES +#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ)) +#endif + +#define NONE "None" +#define ISPRINT(a) ((a >= ' ') && (a <= '~')) + +#define SCSI_LU_INDEX 1 +#define LU_COUNT 1 + +/* + * SCSI Device Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps); +#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode) \ +static struct target_stat_scsi_dev_attribute \ + target_stat_scsi_dev_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_dev_show_attr_##_name, \ + target_stat_scsi_dev_store_attr_##_name); + +#define DEV_STAT_SCSI_DEV_ATTR_RO(_name) \ +static struct target_stat_scsi_dev_attribute \ + target_stat_scsi_dev_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_dev_show_attr_##_name); + +static ssize_t target_stat_scsi_dev_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_DEV_ATTR_RO(inst); + +static ssize_t target_stat_scsi_dev_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_DEV_ATTR_RO(indx); + +static ssize_t target_stat_scsi_dev_show_attr_role( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "Target\n"); +} +DEV_STAT_SCSI_DEV_ATTR_RO(role); + +static ssize_t target_stat_scsi_dev_show_attr_ports( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count); +} +DEV_STAT_SCSI_DEV_ATTR_RO(ports); + +CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group); + +static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { + &target_stat_scsi_dev_inst.attr, + &target_stat_scsi_dev_indx.attr, + &target_stat_scsi_dev_role.attr, + &target_stat_scsi_dev_ports.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = { + .show_attribute = target_stat_scsi_dev_attr_show, + .store_attribute = target_stat_scsi_dev_attr_store, +}; + +static struct config_item_type target_stat_scsi_dev_cit = { + .ct_item_ops = &target_stat_scsi_dev_attrib_ops, + .ct_attrs = target_stat_scsi_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Device Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps); +#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode) \ +static struct target_stat_scsi_tgt_dev_attribute \ + target_stat_scsi_tgt_dev_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_tgt_dev_show_attr_##_name, \ + target_stat_scsi_tgt_dev_store_attr_##_name); + +#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name) \ +static struct target_stat_scsi_tgt_dev_attribute \ + target_stat_scsi_tgt_dev_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_tgt_dev_show_attr_##_name); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_status( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + char status[16]; + + if (!dev) + return -ENODEV; + + switch (dev->dev_status) { + case TRANSPORT_DEVICE_ACTIVATED: + strcpy(status, "activated"); + break; + case TRANSPORT_DEVICE_DEACTIVATED: + strcpy(status, "deactivated"); + break; + case TRANSPORT_DEVICE_SHUTDOWN: + strcpy(status, "shutdown"); + break; + case TRANSPORT_DEVICE_OFFLINE_ACTIVATED: + case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED: + strcpy(status, "offline"); + break; + default: + sprintf(status, "unknown(%d)", dev->dev_status); + break; + } + + return snprintf(page, PAGE_SIZE, "%s\n", status); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int non_accessible_lus; + + if (!dev) + return -ENODEV; + + switch (dev->dev_status) { + case TRANSPORT_DEVICE_ACTIVATED: + non_accessible_lus = 0; + break; + case TRANSPORT_DEVICE_DEACTIVATED: + case TRANSPORT_DEVICE_SHUTDOWN: + case TRANSPORT_DEVICE_OFFLINE_ACTIVATED: + case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED: + default: + non_accessible_lus = 1; + break; + } + + return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus); + +static ssize_t target_stat_scsi_tgt_dev_show_attr_resets( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); +} +DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets); + + +CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group); + +static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { + &target_stat_scsi_tgt_dev_inst.attr, + &target_stat_scsi_tgt_dev_indx.attr, + &target_stat_scsi_tgt_dev_num_lus.attr, + &target_stat_scsi_tgt_dev_status.attr, + &target_stat_scsi_tgt_dev_non_access_lus.attr, + &target_stat_scsi_tgt_dev_resets.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = { + .show_attribute = target_stat_scsi_tgt_dev_attr_show, + .store_attribute = target_stat_scsi_tgt_dev_attr_store, +}; + +static struct config_item_type target_stat_scsi_tgt_dev_cit = { + .ct_item_ops = &target_stat_scsi_tgt_dev_attrib_ops, + .ct_attrs = target_stat_scsi_tgt_dev_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Logical Unit Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps); +#define DEV_STAT_SCSI_LU_ATTR(_name, _mode) \ +static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_lu_show_attr_##_name, \ + target_stat_scsi_lu_store_attr_##_name); + +#define DEV_STAT_SCSI_LU_ATTR_RO(_name) \ +static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_lu_show_attr_##_name); + +static ssize_t target_stat_scsi_lu_show_attr_inst( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_hba *hba = se_subdev->se_dev_hba; + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); +} +DEV_STAT_SCSI_LU_ATTR_RO(inst); + +static ssize_t target_stat_scsi_lu_show_attr_dev( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); +} +DEV_STAT_SCSI_LU_ATTR_RO(dev); + +static ssize_t target_stat_scsi_lu_show_attr_indx( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); +} +DEV_STAT_SCSI_LU_ATTR_RO(indx); + +static ssize_t target_stat_scsi_lu_show_attr_lun( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + /* FIXME: scsiLuDefaultLun */ + return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); +} +DEV_STAT_SCSI_LU_ATTR_RO(lun); + +static ssize_t target_stat_scsi_lu_show_attr_lu_name( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + /* scsiLuWwnName */ + return snprintf(page, PAGE_SIZE, "%s\n", + (strlen(DEV_T10_WWN(dev)->unit_serial)) ? + (char *)&DEV_T10_WWN(dev)->unit_serial[0] : "None"); +} +DEV_STAT_SCSI_LU_ATTR_RO(lu_name); + +static ssize_t target_stat_scsi_lu_show_attr_vend( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + /* scsiLuVendorId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 8; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->vendor[j]) ? + DEV_T10_WWN(dev)->vendor[j] : 0x20; + str[8] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(vend); + +static ssize_t target_stat_scsi_lu_show_attr_prod( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + + /* scsiLuProductId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 16; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->model[j]) ? + DEV_T10_WWN(dev)->model[j] : 0x20; + str[16] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(prod); + +static ssize_t target_stat_scsi_lu_show_attr_rev( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + int j; + char str[28]; + + if (!dev) + return -ENODEV; + + /* scsiLuRevisionId */ + memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28); + for (j = 0; j < 4; j++) + str[j] = ISPRINT(DEV_T10_WWN(dev)->revision[j]) ? + DEV_T10_WWN(dev)->revision[j] : 0x20; + str[4] = 0; + return snprintf(page, PAGE_SIZE, "%s\n", str); +} +DEV_STAT_SCSI_LU_ATTR_RO(rev); + +static ssize_t target_stat_scsi_lu_show_attr_dev_type( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuPeripheralType */ + return snprintf(page, PAGE_SIZE, "%u\n", + TRANSPORT(dev)->get_device_type(dev)); +} +DEV_STAT_SCSI_LU_ATTR_RO(dev_type); + +static ssize_t target_stat_scsi_lu_show_attr_status( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuStatus */ + return snprintf(page, PAGE_SIZE, "%s\n", + (dev->dev_status == TRANSPORT_DEVICE_ACTIVATED) ? + "available" : "notavailable"); +} +DEV_STAT_SCSI_LU_ATTR_RO(status); + +static ssize_t target_stat_scsi_lu_show_attr_state_bit( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuState */ + return snprintf(page, PAGE_SIZE, "exposed\n"); +} +DEV_STAT_SCSI_LU_ATTR_RO(state_bit); + +static ssize_t target_stat_scsi_lu_show_attr_num_cmds( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuNumCommands */ + return snprintf(page, PAGE_SIZE, "%llu\n", + (unsigned long long)dev->num_cmds); +} +DEV_STAT_SCSI_LU_ATTR_RO(num_cmds); + +static ssize_t target_stat_scsi_lu_show_attr_read_mbytes( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuReadMegaBytes */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20)); +} +DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_lu_show_attr_write_mbytes( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuWrittenMegaBytes */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20)); +} +DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_lu_show_attr_resets( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuInResets */ + return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); +} +DEV_STAT_SCSI_LU_ATTR_RO(resets); + +static ssize_t target_stat_scsi_lu_show_attr_full_stat( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* FIXME: scsiLuOutTaskSetFullStatus */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} +DEV_STAT_SCSI_LU_ATTR_RO(full_stat); + +static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* FIXME: scsiLuHSInCommands */ + return snprintf(page, PAGE_SIZE, "%u\n", 0); +} +DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds); + +static ssize_t target_stat_scsi_lu_show_attr_creation_time( + struct se_dev_stat_grps *sgrps, char *page) +{ + struct se_subsystem_dev *se_subdev = container_of(sgrps, + struct se_subsystem_dev, dev_stat_grps); + struct se_device *dev = se_subdev->se_dev_ptr; + + if (!dev) + return -ENODEV; + + /* scsiLuCreationTime */ + return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); +} +DEV_STAT_SCSI_LU_ATTR_RO(creation_time); + +CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group); + +static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { + &target_stat_scsi_lu_inst.attr, + &target_stat_scsi_lu_dev.attr, + &target_stat_scsi_lu_indx.attr, + &target_stat_scsi_lu_lun.attr, + &target_stat_scsi_lu_lu_name.attr, + &target_stat_scsi_lu_vend.attr, + &target_stat_scsi_lu_prod.attr, + &target_stat_scsi_lu_rev.attr, + &target_stat_scsi_lu_dev_type.attr, + &target_stat_scsi_lu_status.attr, + &target_stat_scsi_lu_state_bit.attr, + &target_stat_scsi_lu_num_cmds.attr, + &target_stat_scsi_lu_read_mbytes.attr, + &target_stat_scsi_lu_write_mbytes.attr, + &target_stat_scsi_lu_resets.attr, + &target_stat_scsi_lu_full_stat.attr, + &target_stat_scsi_lu_hs_num_cmds.attr, + &target_stat_scsi_lu_creation_time.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = { + .show_attribute = target_stat_scsi_lu_attr_show, + .store_attribute = target_stat_scsi_lu_attr_store, +}; + +static struct config_item_type target_stat_scsi_lu_cit = { + .ct_item_ops = &target_stat_scsi_lu_attrib_ops, + .ct_attrs = target_stat_scsi_lu_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_configfs.c:target_core_make_subdev() to setup + * the target statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_dev_default_groups(struct se_subsystem_dev *se_subdev) +{ + struct config_group *dev_stat_grp = &DEV_STAT_GRP(se_subdev)->stat_group; + + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_dev_group, + "scsi_dev", &target_stat_scsi_dev_cit); + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group, + "scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit); + config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_lu_group, + "scsi_lu", &target_stat_scsi_lu_cit); + + dev_stat_grp->default_groups[0] = &DEV_STAT_GRP(se_subdev)->scsi_dev_group; + dev_stat_grp->default_groups[1] = &DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group; + dev_stat_grp->default_groups[2] = &DEV_STAT_GRP(se_subdev)->scsi_lu_group; + dev_stat_grp->default_groups[3] = NULL; +} + +/* + * SCSI Port Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps); +#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_port_attribute \ + target_stat_scsi_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_port_show_attr_##_name, \ + target_stat_scsi_port_store_attr_##_name); + +#define DEV_STAT_SCSI_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_port_attribute \ + target_stat_scsi_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_port_show_attr_##_name); + +static ssize_t target_stat_scsi_port_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_device *dev = lun->lun_se_dev; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_port_show_attr_dev( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_device *dev = lun->lun_se_dev; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_port_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_port_show_attr_role( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + ssize_t ret; + + if (!dev) + return -ENODEV; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(role); + +static ssize_t target_stat_scsi_port_show_attr_busy_count( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + /* FIXME: scsiPortBusyStatuses */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_PORT_ATTR_RO(busy_count); + +CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group); + +static struct configfs_attribute *target_stat_scsi_port_attrs[] = { + &target_stat_scsi_port_inst.attr, + &target_stat_scsi_port_dev.attr, + &target_stat_scsi_port_indx.attr, + &target_stat_scsi_port_role.attr, + &target_stat_scsi_port_busy_count.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_port_attrib_ops = { + .show_attribute = target_stat_scsi_port_attr_show, + .store_attribute = target_stat_scsi_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_port_cit = { + .ct_item_ops = &target_stat_scsi_port_attrib_ops, + .ct_attrs = target_stat_scsi_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Target Port Table + */ +CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps); +#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_tgt_port_attribute \ + target_stat_scsi_tgt_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_tgt_port_show_attr_##_name, \ + target_stat_scsi_tgt_port_store_attr_##_name); + +#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_tgt_port_attribute \ + target_stat_scsi_tgt_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_tgt_port_show_attr_##_name); + +static ssize_t target_stat_scsi_tgt_port_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_tgt_port_show_attr_dev( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_tgt_port_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_tgt_port_show_attr_name( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n", + TPG_TFO(tpg)->get_fabric_name(), sep->sep_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name); + +static ssize_t target_stat_scsi_tgt_port_show_attr_port_index( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%s%s%d\n", + TPG_TFO(tpg)->tpg_get_wwn(tpg), "+t+", + TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index); + +static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds); + +static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(sep->sep_stats.rx_data_octets >> 20)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + ret = snprintf(page, PAGE_SIZE, "%u\n", + (u32)(sep->sep_stats.tx_data_octets >> 20)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + + /* FIXME: scsiTgtPortHsInCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds); + +CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps, + scsi_tgt_port_group); + +static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { + &target_stat_scsi_tgt_port_inst.attr, + &target_stat_scsi_tgt_port_dev.attr, + &target_stat_scsi_tgt_port_indx.attr, + &target_stat_scsi_tgt_port_name.attr, + &target_stat_scsi_tgt_port_port_index.attr, + &target_stat_scsi_tgt_port_in_cmds.attr, + &target_stat_scsi_tgt_port_write_mbytes.attr, + &target_stat_scsi_tgt_port_read_mbytes.attr, + &target_stat_scsi_tgt_port_hs_in_cmds.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = { + .show_attribute = target_stat_scsi_tgt_port_attr_show, + .store_attribute = target_stat_scsi_tgt_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_tgt_port_cit = { + .ct_item_ops = &target_stat_scsi_tgt_port_attrib_ops, + .ct_attrs = target_stat_scsi_tgt_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Transport Table +o */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps); +#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_transport_attribute \ + target_stat_scsi_transport_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_transport_show_attr_##_name, \ + target_stat_scsi_transport_store_attr_##_name); + +#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name) \ +static struct target_stat_scsi_transport_attribute \ + target_stat_scsi_transport_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_transport_show_attr_##_name); + +static ssize_t target_stat_scsi_transport_show_attr_inst( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_hba *hba; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + + hba = dev->se_hba; + ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_transport_show_attr_device( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + /* scsiTransportType */ + ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n", + TPG_TFO(tpg)->get_fabric_name()); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device); + +static ssize_t target_stat_scsi_transport_show_attr_indx( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_port *sep; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_transport_show_attr_dev_name( + struct se_port_stat_grps *pgrps, char *page) +{ + struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_device *dev = lun->lun_se_dev; + struct se_port *sep; + struct se_portal_group *tpg; + struct t10_wwn *wwn; + ssize_t ret; + + spin_lock(&lun->lun_sep_lock); + sep = lun->lun_sep; + if (!sep) { + spin_unlock(&lun->lun_sep_lock); + return -ENODEV; + } + tpg = sep->sep_tpg; + wwn = DEV_T10_WWN(dev); + /* scsiTransportDevName */ + ret = snprintf(page, PAGE_SIZE, "%s+%s\n", + TPG_TFO(tpg)->tpg_get_wwn(tpg), + (strlen(wwn->unit_serial)) ? wwn->unit_serial : + wwn->vendor); + spin_unlock(&lun->lun_sep_lock); + return ret; +} +DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name); + +CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps, + scsi_transport_group); + +static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { + &target_stat_scsi_transport_inst.attr, + &target_stat_scsi_transport_device.attr, + &target_stat_scsi_transport_indx.attr, + &target_stat_scsi_transport_dev_name.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = { + .show_attribute = target_stat_scsi_transport_attr_show, + .store_attribute = target_stat_scsi_transport_attr_store, +}; + +static struct config_item_type target_stat_scsi_transport_cit = { + .ct_item_ops = &target_stat_scsi_transport_attrib_ops, + .ct_attrs = target_stat_scsi_transport_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup + * the target port statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_port_default_groups(struct se_lun *lun) +{ + struct config_group *port_stat_grp = &PORT_STAT_GRP(lun)->stat_group; + + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_port_group, + "scsi_port", &target_stat_scsi_port_cit); + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_tgt_port_group, + "scsi_tgt_port", &target_stat_scsi_tgt_port_cit); + config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_transport_group, + "scsi_transport", &target_stat_scsi_transport_cit); + + port_stat_grp->default_groups[0] = &PORT_STAT_GRP(lun)->scsi_port_group; + port_stat_grp->default_groups[1] = &PORT_STAT_GRP(lun)->scsi_tgt_port_group; + port_stat_grp->default_groups[2] = &PORT_STAT_GRP(lun)->scsi_transport_group; + port_stat_grp->default_groups[3] = NULL; +} + +/* + * SCSI Authorized Initiator Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps); +#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode) \ +static struct target_stat_scsi_auth_intr_attribute \ + target_stat_scsi_auth_intr_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_auth_intr_show_attr_##_name, \ + target_stat_scsi_auth_intr_store_attr_##_name); + +#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name) \ +static struct target_stat_scsi_auth_intr_attribute \ + target_stat_scsi_auth_intr_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_auth_intr_show_attr_##_name); + +static ssize_t target_stat_scsi_auth_intr_show_attr_inst( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst); + +static ssize_t target_stat_scsi_auth_intr_show_attr_dev( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + lun = deve->se_lun; + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev); + +static ssize_t target_stat_scsi_auth_intr_show_attr_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiAuthIntrTgtPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port); + +static ssize_t target_stat_scsi_auth_intr_show_attr_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx); + +static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrDevOrPort */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 1); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port); + +static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrName */ + ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name); + +static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrLunMapIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx); + +static ssize_t target_stat_scsi_auth_intr_show_attr_att_count( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrAttachedTimes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count); + +static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", deve->total_cmds); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds); + +static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrReadMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->read_bytes >> 20)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes); + +static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrWrittenMegaBytes */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(deve->write_bytes >> 20)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes); + +static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrHSOutCommands */ + ret = snprintf(page, PAGE_SIZE, "%u\n", 0); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds); + +static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAuthIntrLastCreation */ + ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time - + INITIAL_JIFFIES) * 100 / HZ)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time); + +static ssize_t target_stat_scsi_auth_intr_show_attr_row_status( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* FIXME: scsiAuthIntrRowStatus */ + ret = snprintf(page, PAGE_SIZE, "Ready\n"); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status); + +CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps, + scsi_auth_intr_group); + +static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { + &target_stat_scsi_auth_intr_inst.attr, + &target_stat_scsi_auth_intr_dev.attr, + &target_stat_scsi_auth_intr_port.attr, + &target_stat_scsi_auth_intr_indx.attr, + &target_stat_scsi_auth_intr_dev_or_port.attr, + &target_stat_scsi_auth_intr_intr_name.attr, + &target_stat_scsi_auth_intr_map_indx.attr, + &target_stat_scsi_auth_intr_att_count.attr, + &target_stat_scsi_auth_intr_num_cmds.attr, + &target_stat_scsi_auth_intr_read_mbytes.attr, + &target_stat_scsi_auth_intr_write_mbytes.attr, + &target_stat_scsi_auth_intr_hs_num_cmds.attr, + &target_stat_scsi_auth_intr_creation_time.attr, + &target_stat_scsi_auth_intr_row_status.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = { + .show_attribute = target_stat_scsi_auth_intr_attr_show, + .store_attribute = target_stat_scsi_auth_intr_attr_store, +}; + +static struct config_item_type target_stat_scsi_auth_intr_cit = { + .ct_item_ops = &target_stat_scsi_auth_intr_attrib_ops, + .ct_attrs = target_stat_scsi_auth_intr_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * SCSI Attached Initiator Port Table + */ + +CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps); +#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode) \ +static struct target_stat_scsi_att_intr_port_attribute \ + target_stat_scsi_att_intr_port_##_name = \ + __CONFIGFS_EATTR(_name, _mode, \ + target_stat_scsi_att_intr_port_show_attr_##_name, \ + target_stat_scsi_att_intr_port_store_attr_##_name); + +#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name) \ +static struct target_stat_scsi_att_intr_port_attribute \ + target_stat_scsi_att_intr_port_##_name = \ + __CONFIGFS_EATTR_RO(_name, \ + target_stat_scsi_att_intr_port_show_attr_##_name); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_inst( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiInstIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->tpg_get_inst_index(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_dev( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_lun *lun; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + lun = deve->se_lun; + /* scsiDeviceIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_se_dev->dev_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + tpg = nacl->se_tpg; + /* scsiPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg)); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortIndex */ + ret = snprintf(page, PAGE_SIZE, "%u\n", + TPG_TFO(tpg)->sess_get_index(se_sess)); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_dev_entry *deve; + ssize_t ret; + + spin_lock_irq(&nacl->device_list_lock); + deve = &nacl->device_list[lacl->mapped_lun]; + if (!deve->se_lun || !deve->se_lun_acl) { + spin_unlock_irq(&nacl->device_list_lock); + return -ENODEV; + } + /* scsiAttIntrPortAuthIntrIdx */ + ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index); + spin_unlock_irq(&nacl->device_list_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx); + +static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( + struct se_ml_stat_grps *lgrps, char *page) +{ + struct se_lun_acl *lacl = container_of(lgrps, + struct se_lun_acl, ml_stat_grps); + struct se_node_acl *nacl = lacl->se_lun_nacl; + struct se_session *se_sess; + struct se_portal_group *tpg; + ssize_t ret; + unsigned char buf[64]; + + spin_lock_irq(&nacl->nacl_sess_lock); + se_sess = nacl->nacl_sess; + if (!se_sess) { + spin_unlock_irq(&nacl->nacl_sess_lock); + return -ENODEV; + } + + tpg = nacl->se_tpg; + /* scsiAttIntrPortName+scsiAttIntrPortIdentifier */ + memset(buf, 0, 64); + if (TPG_TFO(tpg)->sess_get_initiator_sid != NULL) + TPG_TFO(tpg)->sess_get_initiator_sid(se_sess, + (unsigned char *)&buf[0], 64); + + ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf); + spin_unlock_irq(&nacl->nacl_sess_lock); + return ret; +} +DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident); + +CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps, + scsi_att_intr_port_group); + +static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { + &target_stat_scsi_att_intr_port_inst.attr, + &target_stat_scsi_att_intr_port_dev.attr, + &target_stat_scsi_att_intr_port_port.attr, + &target_stat_scsi_att_intr_port_indx.attr, + &target_stat_scsi_att_intr_port_port_auth_indx.attr, + &target_stat_scsi_att_intr_port_port_ident.attr, + NULL, +}; + +static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = { + .show_attribute = target_stat_scsi_att_intr_port_attr_show, + .store_attribute = target_stat_scsi_att_intr_port_attr_store, +}; + +static struct config_item_type target_stat_scsi_att_intr_port_cit = { + .ct_item_ops = &target_stat_scsi_att_intr_port_attrib_ops, + .ct_attrs = target_stat_scsi_ath_intr_port_attrs, + .ct_owner = THIS_MODULE, +}; + +/* + * Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup + * the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c + */ +void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl) +{ + struct config_group *ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group; + + config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_auth_intr_group, + "scsi_auth_intr", &target_stat_scsi_auth_intr_cit); + config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_att_intr_port_group, + "scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit); + + ml_stat_grp->default_groups[0] = &ML_STAT_GRPS(lacl)->scsi_auth_intr_group; + ml_stat_grp->default_groups[1] = &ML_STAT_GRPS(lacl)->scsi_att_intr_port_group; + ml_stat_grp->default_groups[2] = NULL; +} diff --git a/drivers/target/target_core_stat.h b/drivers/target/target_core_stat.h new file mode 100644 index 0000000..86c252f --- /dev/null +++ b/drivers/target/target_core_stat.h @@ -0,0 +1,8 @@ +#ifndef TARGET_CORE_STAT_H +#define TARGET_CORE_STAT_H + +extern void target_stat_setup_dev_default_groups(struct se_subsystem_dev *); +extern void target_stat_setup_port_default_groups(struct se_lun *); +extern void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *); + +#endif /*** TARGET_CORE_STAT_H ***/ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 79f2e0a..c15ed50 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -601,7 +601,8 @@ struct se_node_acl { struct config_group acl_attrib_group; struct config_group acl_auth_group; struct config_group acl_param_group; - struct config_group *acl_default_groups[4]; + struct config_group acl_fabric_stat_group; + struct config_group *acl_default_groups[5]; struct list_head acl_list; struct list_head acl_sess_list; } ____cacheline_aligned; @@ -622,6 +623,12 @@ struct se_device; struct se_transform_info; struct scatterlist; +struct se_ml_stat_grps { + struct config_group stat_group; + struct config_group scsi_auth_intr_group; + struct config_group scsi_att_intr_port_group; +}; + struct se_lun_acl { char initiatorname[TRANSPORT_IQN_LEN]; u32 mapped_lun; @@ -629,8 +636,11 @@ struct se_lun_acl { struct se_lun *se_lun; struct list_head lacl_list; struct config_group se_lun_group; + struct se_ml_stat_grps ml_stat_grps; } ____cacheline_aligned; +#define ML_STAT_GRPS(lacl) (&(lacl)->ml_stat_grps) + struct se_dev_entry { bool def_pr_registered; /* See transport_lunflags_table */ @@ -693,6 +703,13 @@ struct se_dev_attrib { struct config_group da_group; } ____cacheline_aligned; +struct se_dev_stat_grps { + struct config_group stat_group; + struct config_group scsi_dev_group; + struct config_group scsi_tgt_dev_group; + struct config_group scsi_lu_group; +}; + struct se_subsystem_dev { /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ #define SE_DEV_ALIAS_LEN 512 @@ -716,11 +733,14 @@ struct se_subsystem_dev { struct config_group se_dev_group; /* For T10 Reservations */ struct config_group se_dev_pr_group; + /* For target_core_stat.c groups */ + struct se_dev_stat_grps dev_stat_grps; } ____cacheline_aligned; #define T10_ALUA(su_dev) (&(su_dev)->t10_alua) #define T10_RES(su_dev) (&(su_dev)->t10_reservation) #define T10_PR_OPS(su_dev) (&(su_dev)->t10_reservation.pr_ops) +#define DEV_STAT_GRP(dev) (&(dev)->dev_stat_grps) struct se_device { /* Set to 1 if thread is NOT sleeping on thread_sem */ @@ -834,6 +854,13 @@ struct se_hba { #define SE_HBA(dev) ((dev)->se_hba) +struct se_port_stat_grps { + struct config_group stat_group; + struct config_group scsi_port_group; + struct config_group scsi_tgt_port_group; + struct config_group scsi_transport_group; +}; + struct se_lun { /* See transport_lun_status_table */ enum transport_lun_status_table lun_status; @@ -848,11 +875,13 @@ struct se_lun { struct list_head lun_cmd_list; struct list_head lun_acl_list; struct se_device *lun_se_dev; + struct se_port *lun_sep; struct config_group lun_group; - struct se_port *lun_sep; + struct se_port_stat_grps port_stat_grps; } ____cacheline_aligned; #define SE_LUN(cmd) ((cmd)->se_lun) +#define PORT_STAT_GRP(lun) (&(lun)->port_stat_grps) struct scsi_port_stats { u64 cmd_pdus; @@ -924,6 +953,8 @@ struct se_portal_group { struct se_wwn { struct target_fabric_configfs *wwn_tf; struct config_group wwn_group; + struct config_group *wwn_default_groups[2]; + struct config_group fabric_stat_group; } ____cacheline_aligned; struct se_global { diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h index 40e6e74..6125095 100644 --- a/include/target/target_core_configfs.h +++ b/include/target/target_core_configfs.h @@ -14,10 +14,12 @@ extern void target_fabric_configfs_deregister(struct target_fabric_configfs *); struct target_fabric_configfs_template { struct config_item_type tfc_discovery_cit; struct config_item_type tfc_wwn_cit; + struct config_item_type tfc_wwn_fabric_stats_cit; struct config_item_type tfc_tpg_cit; struct config_item_type tfc_tpg_base_cit; struct config_item_type tfc_tpg_lun_cit; struct config_item_type tfc_tpg_port_cit; + struct config_item_type tfc_tpg_port_stat_cit; struct config_item_type tfc_tpg_np_cit; struct config_item_type tfc_tpg_np_base_cit; struct config_item_type tfc_tpg_attrib_cit; @@ -27,7 +29,9 @@ struct target_fabric_configfs_template { struct config_item_type tfc_tpg_nacl_attrib_cit; struct config_item_type tfc_tpg_nacl_auth_cit; struct config_item_type tfc_tpg_nacl_param_cit; + struct config_item_type tfc_tpg_nacl_stat_cit; struct config_item_type tfc_tpg_mappedlun_cit; + struct config_item_type tfc_tpg_mappedlun_stat_cit; }; struct target_fabric_configfs { -- cgit v0.10.2 From 0a2385cea9a715e11df10fce1f1442d933008a40 Mon Sep 17 00:00:00 2001 From: "Kashyap, Desai" Date: Tue, 15 Mar 2011 20:04:26 +0530 Subject: [SCSI] mpt2sas : Added customer specific display support Added Vendor specific branding message support. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index e8a6f1c..5e001ff 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -1748,6 +1748,54 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc) } /** + * _base_display_hp_branding - Display branding string + * @ioc: per adapter object + * + * Return nothing. + */ +static void +_base_display_hp_branding(struct MPT2SAS_ADAPTER *ioc) +{ + if (ioc->pdev->subsystem_vendor != MPT2SAS_HP_3PAR_SSVID) + return; + + switch (ioc->pdev->device) { + case MPI2_MFGPAGE_DEVID_SAS2004: + switch (ioc->pdev->subsystem_device) { + case MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING); + break; + default: + break; + } + case MPI2_MFGPAGE_DEVID_SAS2308_2: + switch (ioc->pdev->subsystem_device) { + case MPT2SAS_HP_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_2_4_INTERNAL_BRANDING); + break; + case MPT2SAS_HP_2_4_EXTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_2_4_EXTERNAL_BRANDING); + break; + case MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING); + break; + case MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID: + printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, + MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING); + break; + default: + break; + } + default: + break; + } +} + +/** * _base_display_ioc_capabilities - Disply IOC's capabilities. * @ioc: per adapter object * @@ -1778,6 +1826,7 @@ _base_display_ioc_capabilities(struct MPT2SAS_ADAPTER *ioc) _base_display_dell_branding(ioc); _base_display_intel_branding(ioc); + _base_display_hp_branding(ioc); printk(MPT2SAS_INFO_FMT "Protocol=(", ioc->name); diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index a3f8aa9..5003282 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -168,6 +168,26 @@ #define MPT2SAS_INTEL_RMS2LL080_SSDID 0x350E #define MPT2SAS_INTEL_RMS2LL040_SSDID 0x350F + +/* + * HP HBA branding + */ +#define MPT2SAS_HP_3PAR_SSVID 0x1590 +#define MPT2SAS_HP_2_4_INTERNAL_BRANDING "HP H220 Host Bus Adapter" +#define MPT2SAS_HP_2_4_EXTERNAL_BRANDING "HP H221 Host Bus Adapter" +#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING "HP H222 Host Bus Adapter" +#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING "HP H220i Host Bus Adapter" +#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING "HP H210i Host Bus Adapter" + +/* + * HO HBA SSDIDs + */ +#define MPT2SAS_HP_2_4_INTERNAL_SSDID 0x0041 +#define MPT2SAS_HP_2_4_EXTERNAL_SSDID 0x0042 +#define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID 0x0043 +#define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID 0x0044 +#define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID 0x0046 + /* * per target private data */ -- cgit v0.10.2 From e8b12f0fb8352237525961f14ec933e915848840 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Thu, 17 Mar 2011 02:10:32 -0700 Subject: [SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller family Added new hardware device 0x28b interface for PMC-Sierra's SRC based controller family. - new src.c file for 0x28b specific functions - new XPORT header required - sync. command interface: doorbell bits shifted (SRC_ODR_SHIFT, SRC_IDR_SHIFT) - async. Interface: different inbound queue handling, no outbound I2O queue available, using doorbell ("PmDoorBellResponseSent") and response buffer on the host ("host_rrq") for status - changed AIF (adapter initiated FIBs) interface: "DoorBellAifPending" bit to inform about pending AIF, "AifRequest" command to read AIF, "NoMoreAifDataAvailable" to mark the end of the AIFs Signed-off-by: Mahesh Rajashekhara Signed-off-by: James Bottomley diff --git a/drivers/scsi/aacraid/Makefile b/drivers/scsi/aacraid/Makefile index 92df4d6..1bd9fd1 100644 --- a/drivers/scsi/aacraid/Makefile +++ b/drivers/scsi/aacraid/Makefile @@ -3,6 +3,6 @@ obj-$(CONFIG_SCSI_AACRAID) := aacraid.o aacraid-objs := linit.o aachba.o commctrl.o comminit.o commsup.o \ - dpcsup.o rx.o sa.o rkt.o nark.o + dpcsup.o rx.o sa.o rkt.o nark.o src.o ccflags-y := -Idrivers/scsi diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 7df2dd1..118ce83 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -1486,7 +1487,9 @@ int aac_get_adapter_info(struct aac_dev* dev) dev->a_ops.adapter_write = aac_write_block; } dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT; - if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) { + if (dev->adapter_info.options & AAC_OPT_NEW_COMM_TYPE1) + dev->adapter_info.options |= AAC_OPT_NEW_COMM; + if (!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) { /* * Worst case size that could cause sg overflow when * we break up SG elements that are larger than 64KB. diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 4dbcc05..29ab000 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -12,7 +12,7 @@ *----------------------------------------------------------------------------*/ #ifndef AAC_DRIVER_BUILD -# define AAC_DRIVER_BUILD 26400 +# define AAC_DRIVER_BUILD 28000 # define AAC_DRIVER_BRANCH "-ms" #endif #define MAXIMUM_NUM_CONTAINERS 32 @@ -277,6 +277,16 @@ enum aac_queue_types { #define FsaNormal 1 +/* transport FIB header (PMC) */ +struct aac_fib_xporthdr { + u64 HostAddress; /* FIB host address w/o xport header */ + u32 Size; /* FIB size excluding xport header */ + u32 Handle; /* driver handle to reference the FIB */ + u64 Reserved[2]; +}; + +#define ALIGN32 32 + /* * Define the FIB. The FIB is the where all the requested data and * command information are put to the application on the FSA adapter. @@ -394,7 +404,9 @@ enum fib_xfer_state { AdapterMicroFib = (1<<17), BIOSFibPath = (1<<18), FastResponseCapable = (1<<19), - ApiFib = (1<<20) // Its an API Fib. + ApiFib = (1<<20), /* Its an API Fib */ + /* PMC NEW COMM: There is no more AIF data pending */ + NoMoreAifDataAvailable = (1<<21) }; /* @@ -404,6 +416,7 @@ enum fib_xfer_state { #define ADAPTER_INIT_STRUCT_REVISION 3 #define ADAPTER_INIT_STRUCT_REVISION_4 4 // rocket science +#define ADAPTER_INIT_STRUCT_REVISION_6 6 /* PMC src */ struct aac_init { @@ -428,9 +441,15 @@ struct aac_init #define INITFLAGS_NEW_COMM_SUPPORTED 0x00000001 #define INITFLAGS_DRIVER_USES_UTC_TIME 0x00000010 #define INITFLAGS_DRIVER_SUPPORTS_PM 0x00000020 +#define INITFLAGS_NEW_COMM_TYPE1_SUPPORTED 0x00000041 __le32 MaxIoCommands; /* max outstanding commands */ __le32 MaxIoSize; /* largest I/O command */ __le32 MaxFibSize; /* largest FIB to adapter */ + /* ADAPTER_INIT_STRUCT_REVISION_5 begins here */ + __le32 MaxNumAif; /* max number of aif */ + /* ADAPTER_INIT_STRUCT_REVISION_6 begins here */ + __le32 HostRRQ_AddrLow; + __le32 HostRRQ_AddrHigh; /* Host RRQ (response queue) for SRC */ }; enum aac_log_level { @@ -685,7 +704,7 @@ struct rx_inbound { #define OutboundDoorbellReg MUnit.ODR struct rx_registers { - struct rx_mu_registers MUnit; /* 1300h - 1344h */ + struct rx_mu_registers MUnit; /* 1300h - 1347h */ __le32 reserved1[2]; /* 1348h - 134ch */ struct rx_inbound IndexRegs; }; @@ -703,7 +722,7 @@ struct rx_registers { #define rkt_inbound rx_inbound struct rkt_registers { - struct rkt_mu_registers MUnit; /* 1300h - 1344h */ + struct rkt_mu_registers MUnit; /* 1300h - 1347h */ __le32 reserved1[1006]; /* 1348h - 22fch */ struct rkt_inbound IndexRegs; /* 2300h - */ }; @@ -713,6 +732,44 @@ struct rkt_registers { #define rkt_writeb(AEP, CSR, value) writeb(value, &((AEP)->regs.rkt->CSR)) #define rkt_writel(AEP, CSR, value) writel(value, &((AEP)->regs.rkt->CSR)) +/* + * PMC SRC message unit registers + */ + +#define src_inbound rx_inbound + +struct src_mu_registers { + /* PCI*| Name */ + __le32 reserved0[8]; /* 00h | Reserved */ + __le32 IDR; /* 20h | Inbound Doorbell Register */ + __le32 IISR; /* 24h | Inbound Int. Status Register */ + __le32 reserved1[3]; /* 28h | Reserved */ + __le32 OIMR; /* 34h | Outbound Int. Mask Register */ + __le32 reserved2[25]; /* 38h | Reserved */ + __le32 ODR_R; /* 9ch | Outbound Doorbell Read */ + __le32 ODR_C; /* a0h | Outbound Doorbell Clear */ + __le32 reserved3[6]; /* a4h | Reserved */ + __le32 OMR; /* bch | Outbound Message Register */ + __le32 IQ_L; /* c0h | Inbound Queue (Low address) */ + __le32 IQ_H; /* c4h | Inbound Queue (High address) */ +}; + +struct src_registers { + struct src_mu_registers MUnit; /* 00h - c7h */ + __le32 reserved1[130790]; /* c8h - 7fc5fh */ + struct src_inbound IndexRegs; /* 7fc60h */ +}; + +#define src_readb(AEP, CSR) readb(&((AEP)->regs.src.bar0->CSR)) +#define src_readl(AEP, CSR) readl(&((AEP)->regs.src.bar0->CSR)) +#define src_writeb(AEP, CSR, value) writeb(value, \ + &((AEP)->regs.src.bar0->CSR)) +#define src_writel(AEP, CSR, value) writel(value, \ + &((AEP)->regs.src.bar0->CSR)) + +#define SRC_ODR_SHIFT 12 +#define SRC_IDR_SHIFT 9 + typedef void (*fib_callback)(void *ctxt, struct fib *fibctx); struct aac_fib_context { @@ -879,6 +936,7 @@ struct aac_supplement_adapter_info #define AAC_OPTION_MU_RESET cpu_to_le32(0x00000001) #define AAC_OPTION_IGNORE_RESET cpu_to_le32(0x00000002) #define AAC_OPTION_POWER_MANAGEMENT cpu_to_le32(0x00000004) +#define AAC_OPTION_DOORBELL_RESET cpu_to_le32(0x00004000) #define AAC_SIS_VERSION_V3 3 #define AAC_SIS_SLOT_UNKNOWN 0xFF @@ -940,6 +998,7 @@ struct aac_bus_info_response { #define AAC_OPT_SUPPLEMENT_ADAPTER_INFO cpu_to_le32(1<<16) #define AAC_OPT_NEW_COMM cpu_to_le32(1<<17) #define AAC_OPT_NEW_COMM_64 cpu_to_le32(1<<18) +#define AAC_OPT_NEW_COMM_TYPE1 cpu_to_le32(1<<28) struct aac_dev { @@ -952,6 +1011,7 @@ struct aac_dev */ unsigned max_fib_size; unsigned sg_tablesize; + unsigned max_num_aif; /* * Map for 128 fib objects (64k) @@ -980,10 +1040,21 @@ struct aac_dev struct adapter_ops a_ops; unsigned long fsrev; /* Main driver's revision number */ - unsigned base_size; /* Size of mapped in region */ + unsigned long dbg_base; /* address of UART + * debug buffer */ + + unsigned base_size, dbg_size; /* Size of + * mapped in region */ + struct aac_init *init; /* Holds initialization info to communicate with adapter */ dma_addr_t init_pa; /* Holds physical address of the init struct */ + u32 *host_rrq; /* response queue + * if AAC_COMM_MESSAGE_TYPE1 */ + + dma_addr_t host_rrq_pa; /* phys. address */ + u32 host_rrq_idx; /* index into rrq buffer */ + struct pci_dev *pdev; /* Our PCI interface */ void * printfbuf; /* pointer to buffer used for printf's from the adapter */ void * comm_addr; /* Base address of Comm area */ @@ -1003,14 +1074,20 @@ struct aac_dev */ #ifndef AAC_MIN_FOOTPRINT_SIZE # define AAC_MIN_FOOTPRINT_SIZE 8192 +# define AAC_MIN_SRC_BAR0_SIZE 0x400000 +# define AAC_MIN_SRC_BAR1_SIZE 0x800 #endif union { struct sa_registers __iomem *sa; struct rx_registers __iomem *rx; struct rkt_registers __iomem *rkt; + struct { + struct src_registers __iomem *bar0; + char __iomem *bar1; + } src; } regs; - volatile void __iomem *base; + volatile void __iomem *base, *dbg_base_mapped; volatile struct rx_inbound __iomem *IndexRegs; u32 OIMR; /* Mask Register Cache */ /* @@ -1031,9 +1108,8 @@ struct aac_dev u8 comm_interface; # define AAC_COMM_PRODUCER 0 # define AAC_COMM_MESSAGE 1 - /* macro side-effects BEWARE */ -# define raw_io_interface \ - init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4) +# define AAC_COMM_MESSAGE_TYPE1 3 + u8 raw_io_interface; u8 raw_io_64; u8 printf_enabled; u8 in_reset; @@ -1789,6 +1865,10 @@ extern struct aac_common aac_config; #define DoorBellAdapterNormCmdNotFull (1<<3) /* Adapter -> Host */ #define DoorBellAdapterNormRespNotFull (1<<4) /* Adapter -> Host */ #define DoorBellPrintfReady (1<<5) /* Adapter -> Host */ +#define DoorBellAifPending (1<<6) /* Adapter -> Host */ + +/* PMC specific outbound doorbell bits */ +#define PmDoorBellResponseSent (1<<1) /* Adapter -> Host */ /* * For FIB communication, we need all of the following things @@ -1831,6 +1911,9 @@ extern struct aac_common aac_config; #define AifReqAPIJobUpdate 109 /* Update a job report from the API */ #define AifReqAPIJobFinish 110 /* Finish a job from the API */ +/* PMC NEW COMM: Request the event data */ +#define AifReqEvent 200 + /* * Adapter Initiated FIB command structures. Start with the adapter * initiated FIBs that really come from the adapter, and get responded @@ -1886,10 +1969,13 @@ int aac_rx_init(struct aac_dev *dev); int aac_rkt_init(struct aac_dev *dev); int aac_nark_init(struct aac_dev *dev); int aac_sa_init(struct aac_dev *dev); +int aac_src_init(struct aac_dev *dev); int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw_fib, int wait, struct fib * fibptr, unsigned long *nonotify); unsigned int aac_response_normal(struct aac_queue * q); unsigned int aac_command_normal(struct aac_queue * q); -unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index); +unsigned int aac_intr_normal(struct aac_dev *dev, u32 Index, + int isAif, int isFastResponse, + struct hw_fib *aif_fib); int aac_reset_adapter(struct aac_dev * dev, int forced); int aac_check_health(struct aac_dev * dev); int aac_command_thread(void *data); diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index 645ddd9..8a0b330 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index a726148..7ac8fdb 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -52,12 +53,16 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co unsigned long size, align; const unsigned long fibsize = 4096; const unsigned long printfbufsiz = 256; + unsigned long host_rrq_size = 0; struct aac_init *init; dma_addr_t phys; unsigned long aac_max_hostphysmempages; - size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz; - + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) + host_rrq_size = (dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) * sizeof(u32); + size = fibsize + sizeof(struct aac_init) + commsize + + commalign + printfbufsiz + host_rrq_size; base = pci_alloc_consistent(dev->pdev, size, &phys); @@ -70,8 +75,14 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co dev->comm_phys = phys; dev->comm_size = size; - dev->init = (struct aac_init *)(base + fibsize); - dev->init_pa = phys + fibsize; + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + dev->host_rrq = (u32 *)(base + fibsize); + dev->host_rrq_pa = phys + fibsize; + memset(dev->host_rrq, 0, host_rrq_size); + } + + dev->init = (struct aac_init *)(base + fibsize + host_rrq_size); + dev->init_pa = phys + fibsize + host_rrq_size; init = dev->init; @@ -106,8 +117,13 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->InitFlags = 0; if (dev->comm_interface == AAC_COMM_MESSAGE) { - init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); + init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); + } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); + init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_TYPE1_SUPPORTED); + dprintk((KERN_WARNING + "aacraid: New Comm Interface type1 enabled\n")); } init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | INITFLAGS_DRIVER_SUPPORTS_PM); @@ -115,11 +131,18 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); init->MaxFibSize = cpu_to_le32(dev->max_fib_size); + init->MaxNumAif = cpu_to_le32(dev->max_num_aif); + init->HostRRQ_AddrHigh = (u32)((u64)dev->host_rrq_pa >> 32); + init->HostRRQ_AddrLow = (u32)(dev->host_rrq_pa & 0xffffffff); + + /* * Increment the base address by the amount already used */ - base = base + fibsize + sizeof(struct aac_init); - phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init)); + base = base + fibsize + host_rrq_size + sizeof(struct aac_init); + phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + + sizeof(struct aac_init)); + /* * Align the beginning of Headers to commalign */ @@ -314,15 +337,22 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) - sizeof(struct aac_write) + sizeof(struct sgentry)) / sizeof(struct sgentry); dev->comm_interface = AAC_COMM_PRODUCER; - dev->raw_io_64 = 0; + dev->raw_io_interface = dev->raw_io_64 = 0; + if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && (status[0] == 0x00000001)) { if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) dev->raw_io_64 = 1; - if (dev->a_ops.adapter_comm && - (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) - dev->comm_interface = AAC_COMM_MESSAGE; + if (dev->a_ops.adapter_comm) { + if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1)) { + dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; + dev->raw_io_interface = 1; + } else if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)) { + dev->comm_interface = AAC_COMM_MESSAGE; + dev->raw_io_interface = 1; + } + } if ((dev->comm_interface == AAC_COMM_MESSAGE) && (status[2] > dev->base_size)) { aac_adapter_ioremap(dev, 0); @@ -350,10 +380,12 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev) * status[3] & 0xFFFF maximum number FIBs outstanding */ host->max_sectors = (status[1] >> 16) << 1; - dev->max_fib_size = status[1] & 0xFFFF; + /* Multiple of 32 for PMC */ + dev->max_fib_size = status[1] & 0xFFE0; host->sg_tablesize = status[2] >> 16; dev->sg_tablesize = status[2] & 0xFFFF; host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; + dev->max_num_aif = status[4] & 0xFFFF; /* * NOTE: * All these overrides are based on a fixed internal diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 060ac4b..dd7ad3b 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -63,9 +64,11 @@ static int fib_map_alloc(struct aac_dev *dev) "allocate hardware fibs pci_alloc_consistent(%p, %d * (%d + %d), %p)\n", dev->pdev, dev->max_fib_size, dev->scsi_host_ptr->can_queue, AAC_NUM_MGT_FIB, &dev->hw_fib_pa)); - if((dev->hw_fib_va = pci_alloc_consistent(dev->pdev, dev->max_fib_size - * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB), - &dev->hw_fib_pa))==NULL) + dev->hw_fib_va = pci_alloc_consistent(dev->pdev, + (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) + * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) + (ALIGN32 - 1), + &dev->hw_fib_pa); + if (dev->hw_fib_va == NULL) return -ENOMEM; return 0; } @@ -110,9 +113,22 @@ int aac_fib_setup(struct aac_dev * dev) if (i<0) return -ENOMEM; + /* 32 byte alignment for PMC */ + hw_fib_pa = (dev->hw_fib_pa + (ALIGN32 - 1)) & ~(ALIGN32 - 1); + dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + + (hw_fib_pa - dev->hw_fib_pa)); + dev->hw_fib_pa = hw_fib_pa; + memset(dev->hw_fib_va, 0, + (dev->max_fib_size + sizeof(struct aac_fib_xporthdr)) * + (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); + + /* add Xport header */ + dev->hw_fib_va = (struct hw_fib *)((unsigned char *)dev->hw_fib_va + + sizeof(struct aac_fib_xporthdr)); + dev->hw_fib_pa += sizeof(struct aac_fib_xporthdr); + hw_fib = dev->hw_fib_va; hw_fib_pa = dev->hw_fib_pa; - memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)); /* * Initialise the fibs */ @@ -129,8 +145,10 @@ int aac_fib_setup(struct aac_dev * dev) hw_fib->header.XferState = cpu_to_le32(0xffffffff); hw_fib->header.SenderSize = cpu_to_le16(dev->max_fib_size); fibptr->hw_fib_pa = hw_fib_pa; - hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + dev->max_fib_size); - hw_fib_pa = hw_fib_pa + dev->max_fib_size; + hw_fib = (struct hw_fib *)((unsigned char *)hw_fib + + dev->max_fib_size + sizeof(struct aac_fib_xporthdr)); + hw_fib_pa = hw_fib_pa + + dev->max_fib_size + sizeof(struct aac_fib_xporthdr); } /* * Add the fib chain to the free list @@ -664,9 +682,14 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) unsigned long nointr = 0; unsigned long qflags; + if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { + kfree(hw_fib); + return 0; + } + if (hw_fib->header.XferState == 0) { if (dev->comm_interface == AAC_COMM_MESSAGE) - kfree (hw_fib); + kfree(hw_fib); return 0; } /* @@ -674,7 +697,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size) */ if (hw_fib->header.StructType != FIB_MAGIC) { if (dev->comm_interface == AAC_COMM_MESSAGE) - kfree (hw_fib); + kfree(hw_fib); return -EINVAL; } /* diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index 9c7408fe..f0c66a8 100644 --- a/drivers/scsi/aacraid/dpcsup.c +++ b/drivers/scsi/aacraid/dpcsup.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -228,6 +229,48 @@ unsigned int aac_command_normal(struct aac_queue *q) return 0; } +/* + * + * aac_aif_callback + * @context: the context set in the fib - here it is scsi cmd + * @fibptr: pointer to the fib + * + * Handles the AIFs - new method (SRC) + * + */ + +static void aac_aif_callback(void *context, struct fib * fibptr) +{ + struct fib *fibctx; + struct aac_dev *dev; + struct aac_aifcmd *cmd; + int status; + + fibctx = (struct fib *)context; + BUG_ON(fibptr == NULL); + dev = fibptr->dev; + + if (fibptr->hw_fib_va->header.XferState & + cpu_to_le32(NoMoreAifDataAvailable)) { + aac_fib_complete(fibptr); + aac_fib_free(fibptr); + return; + } + + aac_intr_normal(dev, 0, 1, 0, fibptr->hw_fib_va); + + aac_fib_init(fibctx); + cmd = (struct aac_aifcmd *) fib_data(fibctx); + cmd->command = cpu_to_le32(AifReqEvent); + + status = aac_fib_send(AifRequest, + fibctx, + sizeof(struct hw_fib)-sizeof(struct aac_fibhdr), + FsaNormal, + 0, 1, + (fib_callback)aac_aif_callback, fibctx); +} + /** * aac_intr_normal - Handle command replies @@ -238,19 +281,17 @@ unsigned int aac_command_normal(struct aac_queue *q) * know there is a response on our normal priority queue. We will pull off * all QE there are and wake up all the waiters before exiting. */ - -unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) +unsigned int aac_intr_normal(struct aac_dev *dev, u32 index, + int isAif, int isFastResponse, struct hw_fib *aif_fib) { unsigned long mflags; dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index)); - if ((index & 0x00000002L)) { + if (isAif == 1) { /* AIF - common */ struct hw_fib * hw_fib; struct fib * fib; struct aac_queue *q = &dev->queues->queue[HostNormCmdQueue]; unsigned long flags; - if (index == 0xFFFFFFFEL) /* Special Case */ - return 0; /* Do nothing */ /* * Allocate a FIB. For non queued stuff we can just use * the stack so we are happy. We need a fib object in order to @@ -263,8 +304,13 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) kfree (fib); return 1; } - memcpy(hw_fib, (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) + - (index & ~0x00000002L)), sizeof(struct hw_fib)); + if (aif_fib != NULL) { + memcpy(hw_fib, aif_fib, sizeof(struct hw_fib)); + } else { + memcpy(hw_fib, + (struct hw_fib *)(((uintptr_t)(dev->regs.sa)) + + index), sizeof(struct hw_fib)); + } INIT_LIST_HEAD(&fib->fiblink); fib->type = FSAFS_NTC_FIB_CONTEXT; fib->size = sizeof(struct fib); @@ -277,9 +323,26 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) wake_up_interruptible(&q->cmdready); spin_unlock_irqrestore(q->lock, flags); return 1; + } else if (isAif == 2) { /* AIF - new (SRC) */ + struct fib *fibctx; + struct aac_aifcmd *cmd; + + fibctx = aac_fib_alloc(dev); + if (!fibctx) + return 1; + aac_fib_init(fibctx); + + cmd = (struct aac_aifcmd *) fib_data(fibctx); + cmd->command = cpu_to_le32(AifReqEvent); + + return aac_fib_send(AifRequest, + fibctx, + sizeof(struct hw_fib)-sizeof(struct aac_fibhdr), + FsaNormal, + 0, 1, + (fib_callback)aac_aif_callback, fibctx); } else { - int fast = index & 0x01; - struct fib * fib = &dev->fibs[index >> 2]; + struct fib *fib = &dev->fibs[index]; struct hw_fib * hwfib = fib->hw_fib_va; /* @@ -298,7 +361,7 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 index) return 0; } - if (fast) { + if (isFastResponse) { /* * Doctor the fib */ diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 2c93d94..4ff2652 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -54,7 +55,7 @@ #include "aacraid.h" -#define AAC_DRIVER_VERSION "1.1-5" +#define AAC_DRIVER_VERSION "1.1-7" #ifndef AAC_DRIVER_BRANCH #define AAC_DRIVER_BRANCH "" #endif @@ -161,6 +162,7 @@ static const struct pci_device_id aac_pci_tbl[] __devinitdata = { { 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */ { 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */ { 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */ + { 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Catch All */ { 0,} }; MODULE_DEVICE_TABLE(pci, aac_pci_tbl); @@ -235,7 +237,8 @@ static struct aac_driver_ident aac_drivers[] = { { aac_rx_init, "aacraid", "Legend ", "RAID ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */ { aac_rx_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Catch All */ { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec Rocket Catch All */ - { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec NEMER/ARK Catch All */ + { aac_nark_init, "aacraid", "ADAPTEC ", "RAID ", 2 }, /* Adaptec NEMER/ARK Catch All */ + { aac_src_init, "aacraid", "ADAPTEC ", "RAID ", 2 } /* Adaptec PMC Catch All */ }; /** @@ -653,8 +656,10 @@ static int aac_eh_reset(struct scsi_cmnd* cmd) * This adapter needs a blind reset, only do so for Adapters that * support a register, instead of a commanded, reset. */ - if ((aac->supplement_adapter_info.SupportedOptions2 & - AAC_OPTION_MU_RESET) && + if (((aac->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_MU_RESET) || + (aac->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_DOORBELL_RESET)) && aac_check_reset && ((aac_check_reset != 1) || !(aac->supplement_adapter_info.SupportedOptions2 & diff --git a/drivers/scsi/aacraid/nark.c b/drivers/scsi/aacraid/nark.c index c55f7c8..f397d21 100644 --- a/drivers/scsi/aacraid/nark.c +++ b/drivers/scsi/aacraid/nark.c @@ -4,7 +4,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2006-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index 16d8db5..be44de9 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 84d77fd..ce530f1 100644 --- a/drivers/scsi/aacraid/rx.c +++ b/drivers/scsi/aacraid/rx.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -84,15 +85,35 @@ static irqreturn_t aac_rx_intr_producer(int irq, void *dev_id) static irqreturn_t aac_rx_intr_message(int irq, void *dev_id) { + int isAif, isFastResponse, isSpecial; struct aac_dev *dev = dev_id; u32 Index = rx_readl(dev, MUnit.OutboundQueue); if (unlikely(Index == 0xFFFFFFFFL)) Index = rx_readl(dev, MUnit.OutboundQueue); if (likely(Index != 0xFFFFFFFFL)) { do { - if (unlikely(aac_intr_normal(dev, Index))) { - rx_writel(dev, MUnit.OutboundQueue, Index); - rx_writel(dev, MUnit.ODR, DoorBellAdapterNormRespReady); + isAif = isFastResponse = isSpecial = 0; + if (Index & 0x00000002L) { + isAif = 1; + if (Index == 0xFFFFFFFEL) + isSpecial = 1; + Index &= ~0x00000002L; + } else { + if (Index & 0x00000001L) + isFastResponse = 1; + Index >>= 2; + } + if (!isSpecial) { + if (unlikely(aac_intr_normal(dev, + Index, isAif, + isFastResponse, NULL))) { + rx_writel(dev, + MUnit.OutboundQueue, + Index); + rx_writel(dev, + MUnit.ODR, + DoorBellAdapterNormRespReady); + } } Index = rx_readl(dev, MUnit.OutboundQueue); } while (Index != 0xFFFFFFFFL); @@ -631,6 +652,10 @@ int _aac_rx_init(struct aac_dev *dev) name, instance); goto error_iounmap; } + dev->dbg_base = dev->scsi_host_ptr->base; + dev->dbg_base_mapped = dev->base; + dev->dbg_size = dev->base_size; + aac_adapter_enable_int(dev); /* * Tell the adapter that all is configured, and it can diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c index 622c21c..e5d4457 100644 --- a/drivers/scsi/aacraid/sa.c +++ b/drivers/scsi/aacraid/sa.c @@ -5,7 +5,8 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -391,6 +392,10 @@ int aac_sa_init(struct aac_dev *dev) name, instance); goto error_iounmap; } + dev->dbg_base = dev->scsi_host_ptr->base; + dev->dbg_base_mapped = dev->base; + dev->dbg_size = dev->base_size; + aac_adapter_enable_int(dev); /* diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c new file mode 100644 index 0000000..c204946 --- /dev/null +++ b/drivers/scsi/aacraid/src.c @@ -0,0 +1,594 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000-2010 Adaptec, Inc. + * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Module Name: + * src.c + * + * Abstract: Hardware Device Interface for PMC SRC based controllers + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "aacraid.h" + +static irqreturn_t aac_src_intr_message(int irq, void *dev_id) +{ + struct aac_dev *dev = dev_id; + unsigned long bellbits, bellbits_shifted; + int our_interrupt = 0; + int isFastResponse; + u32 index, handle; + + bellbits = src_readl(dev, MUnit.ODR_R); + if (bellbits & PmDoorBellResponseSent) { + bellbits = PmDoorBellResponseSent; + /* handle async. status */ + our_interrupt = 1; + index = dev->host_rrq_idx; + if (dev->host_rrq[index] == 0) { + u32 old_index = index; + /* adjust index */ + do { + index++; + if (index == dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) + index = 0; + if (dev->host_rrq[index] != 0) + break; + } while (index != old_index); + dev->host_rrq_idx = index; + } + for (;;) { + isFastResponse = 0; + /* remove toggle bit (31) */ + handle = (dev->host_rrq[index] & 0x7fffffff); + /* check fast response bit (30) */ + if (handle & 0x40000000) + isFastResponse = 1; + handle &= 0x0000ffff; + if (handle == 0) + break; + + aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); + + dev->host_rrq[index++] = 0; + if (index == dev->scsi_host_ptr->can_queue + + AAC_NUM_MGT_FIB) + index = 0; + dev->host_rrq_idx = index; + } + } else { + bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); + if (bellbits_shifted & DoorBellAifPending) { + our_interrupt = 1; + /* handle AIF */ + aac_intr_normal(dev, 0, 2, 0, NULL); + } + } + + if (our_interrupt) { + src_writel(dev, MUnit.ODR_C, bellbits); + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +/** + * aac_src_disable_interrupt - Disable interrupts + * @dev: Adapter + */ + +static void aac_src_disable_interrupt(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); +} + +/** + * aac_src_enable_interrupt_message - Enable interrupts + * @dev: Adapter + */ + +static void aac_src_enable_interrupt_message(struct aac_dev *dev) +{ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8); +} + +/** + * src_sync_cmd - send a command and wait + * @dev: Adapter + * @command: Command to execute + * @p1: first parameter + * @ret: adapter status + * + * This routine will send a synchronous command to the adapter and wait + * for its completion. + */ + +static int src_sync_cmd(struct aac_dev *dev, u32 command, + u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, + u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) +{ + unsigned long start; + int ok; + + /* + * Write the command into Mailbox 0 + */ + writel(command, &dev->IndexRegs->Mailbox[0]); + /* + * Write the parameters into Mailboxes 1 - 6 + */ + writel(p1, &dev->IndexRegs->Mailbox[1]); + writel(p2, &dev->IndexRegs->Mailbox[2]); + writel(p3, &dev->IndexRegs->Mailbox[3]); + writel(p4, &dev->IndexRegs->Mailbox[4]); + + /* + * Clear the synch command doorbell to start on a clean slate. + */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + + /* + * Disable doorbell interrupts + */ + src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); + + /* + * Force the completion of the mask register write before issuing + * the interrupt. + */ + src_readl(dev, MUnit.OIMR); + + /* + * Signal that there is a new synch command + */ + src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); + + ok = 0; + start = jiffies; + + /* + * Wait up to 30 seconds + */ + while (time_before(jiffies, start+30*HZ)) { + /* Delay 5 microseconds to let Mon960 get info. */ + udelay(5); + + /* Mon960 will set doorbell0 bit + * when it has completed the command + */ + if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) { + /* Clear the doorbell */ + src_writel(dev, + MUnit.ODR_C, + OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + ok = 1; + break; + } + + /* Yield the processor in case we are slow */ + msleep(1); + } + if (unlikely(ok != 1)) { + /* Restore interrupt mask even though we timed out */ + aac_adapter_enable_int(dev); + return -ETIMEDOUT; + } + + /* Pull the synch status from Mailbox 0 */ + if (status) + *status = readl(&dev->IndexRegs->Mailbox[0]); + if (r1) + *r1 = readl(&dev->IndexRegs->Mailbox[1]); + if (r2) + *r2 = readl(&dev->IndexRegs->Mailbox[2]); + if (r3) + *r3 = readl(&dev->IndexRegs->Mailbox[3]); + if (r4) + *r4 = readl(&dev->IndexRegs->Mailbox[4]); + + /* Clear the synch command doorbell */ + src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); + + /* Restore interrupt mask */ + aac_adapter_enable_int(dev); + return 0; + +} + +/** + * aac_src_interrupt_adapter - interrupt adapter + * @dev: Adapter + * + * Send an interrupt to the i960 and breakpoint it. + */ + +static void aac_src_interrupt_adapter(struct aac_dev *dev) +{ + src_sync_cmd(dev, BREAKPOINT_REQUEST, + 0, 0, 0, 0, 0, 0, + NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_notify_adapter - send an event to the adapter + * @dev: Adapter + * @event: Event to send + * + * Notify the i960 that something it probably cares about has + * happened. + */ + +static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) +{ + switch (event) { + + case AdapNormCmdQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); + break; + case HostNormRespNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); + break; + case AdapNormRespQue: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); + break; + case HostNormCmdNotFull: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); + break; + case FastIo: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); + break; + case AdapPrintfDone: + src_writel(dev, MUnit.ODR_C, + INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); + break; + default: + BUG(); + break; + } +} + +/** + * aac_src_start_adapter - activate adapter + * @dev: Adapter + * + * Start up processing on an i960 based AAC adapter + */ + +static void aac_src_start_adapter(struct aac_dev *dev) +{ + struct aac_init *init; + + init = dev->init; + init->HostElapsedSeconds = cpu_to_le32(get_seconds()); + + /* We can only use a 32 bit address here */ + src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, + 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); +} + +/** + * aac_src_check_health + * @dev: device to check if healthy + * + * Will attempt to determine if the specified adapter is alive and + * capable of handling requests, returning 0 if alive. + */ +static int aac_src_check_health(struct aac_dev *dev) +{ + u32 status = src_readl(dev, MUnit.OMR); + + /* + * Check to see if the board failed any self tests. + */ + if (unlikely(status & SELF_TEST_FAILED)) + return -1; + + /* + * Check to see if the board panic'd. + */ + if (unlikely(status & KERNEL_PANIC)) + return (status >> 16) & 0xFF; + /* + * Wait for the adapter to be up and running. + */ + if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) + return -3; + /* + * Everything is OK + */ + return 0; +} + +/** + * aac_src_deliver_message + * @fib: fib to issue + * + * Will send a fib, returning 0 if successful. + */ +static int aac_src_deliver_message(struct fib *fib) +{ + struct aac_dev *dev = fib->dev; + struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; + unsigned long qflags; + u32 fibsize; + u64 address; + struct aac_fib_xporthdr *pFibX; + + spin_lock_irqsave(q->lock, qflags); + q->numpending++; + spin_unlock_irqrestore(q->lock, qflags); + + /* Calculate the amount to the fibsize bits */ + fibsize = (sizeof(struct aac_fib_xporthdr) + + fib->hw_fib_va->header.Size + 127) / 128 - 1; + if (fibsize > (ALIGN32 - 1)) + fibsize = ALIGN32 - 1; + + /* Fill XPORT header */ + pFibX = (struct aac_fib_xporthdr *) + ((unsigned char *)fib->hw_fib_va - + sizeof(struct aac_fib_xporthdr)); + pFibX->Handle = fib->hw_fib_va->header.SenderData + 1; + pFibX->HostAddress = fib->hw_fib_pa; + pFibX->Size = fib->hw_fib_va->header.Size; + address = fib->hw_fib_pa - (u64)sizeof(struct aac_fib_xporthdr); + + src_writel(dev, MUnit.IQ_H, (u32)(address >> 32)); + src_writel(dev, MUnit.IQ_L, (u32)(address & 0xffffffff) + fibsize); + return 0; +} + +/** + * aac_src_ioremap + * @size: mapping resize request + * + */ +static int aac_src_ioremap(struct aac_dev *dev, u32 size) +{ + if (!size) { + iounmap(dev->regs.src.bar0); + dev->regs.src.bar0 = NULL; + iounmap(dev->base); + dev->base = NULL; + return 0; + } + dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), + AAC_MIN_SRC_BAR1_SIZE); + dev->base = NULL; + if (dev->regs.src.bar1 == NULL) + return -1; + dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base, + size); + if (dev->base == NULL) { + iounmap(dev->regs.src.bar1); + dev->regs.src.bar1 = NULL; + return -1; + } + dev->IndexRegs = &((struct src_registers __iomem *) + dev->base)->IndexRegs; + return 0; +} + +static int aac_src_restart_adapter(struct aac_dev *dev, int bled) +{ + u32 var, reset_mask; + + if (bled >= 0) { + if (bled) + printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", + dev->name, dev->id, bled); + bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, + 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); + if (bled || (var != 0x00000001)) + bled = -EINVAL; + if (dev->supplement_adapter_info.SupportedOptions2 & + AAC_OPTION_DOORBELL_RESET) { + src_writel(dev, MUnit.IDR, reset_mask); + msleep(5000); /* Delay 5 seconds */ + } + } + + if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) + return -ENODEV; + + if (startup_timeout < 300) + startup_timeout = 300; + + return 0; +} + +/** + * aac_src_select_comm - Select communications method + * @dev: Adapter + * @comm: communications method + */ +int aac_src_select_comm(struct aac_dev *dev, int comm) +{ + switch (comm) { + case AAC_COMM_MESSAGE: + dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; + dev->a_ops.adapter_intr = aac_src_intr_message; + dev->a_ops.adapter_deliver = aac_src_deliver_message; + break; + default: + return 1; + } + return 0; +} + +/** + * aac_src_init - initialize an Cardinal Frey Bar card + * @dev: device to configure + * + */ + +int aac_src_init(struct aac_dev *dev) +{ + unsigned long start; + unsigned long status; + int restart = 0; + int instance = dev->id; + const char *name = dev->name; + + dev->a_ops.adapter_ioremap = aac_src_ioremap; + dev->a_ops.adapter_comm = aac_src_select_comm; + + dev->base_size = AAC_MIN_SRC_BAR0_SIZE; + if (aac_adapter_ioremap(dev, dev->base_size)) { + printk(KERN_WARNING "%s: unable to map adapter.\n", name); + goto error_iounmap; + } + + /* Failure to reset here is an option ... */ + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; + if ((aac_reset_devices || reset_devices) && + !aac_src_restart_adapter(dev, 0)) + ++restart; + /* + * Check to see if the board panic'd while booting. + */ + status = src_readl(dev, MUnit.OMR); + if (status & KERNEL_PANIC) { + if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) + goto error_iounmap; + ++restart; + } + /* + * Check to see if the board failed any self tests. + */ + status = src_readl(dev, MUnit.OMR); + if (status & SELF_TEST_FAILED) { + printk(KERN_ERR "%s%d: adapter self-test failed.\n", + dev->name, instance); + goto error_iounmap; + } + /* + * Check to see if the monitor panic'd while booting. + */ + if (status & MONITOR_PANIC) { + printk(KERN_ERR "%s%d: adapter monitor panic.\n", + dev->name, instance); + goto error_iounmap; + } + start = jiffies; + /* + * Wait for the adapter to be up and running. Wait up to 3 minutes + */ + while (!((status = src_readl(dev, MUnit.OMR)) & + KERNEL_UP_AND_RUNNING)) { + if ((restart && + (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || + time_after(jiffies, start+HZ*startup_timeout)) { + printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", + dev->name, instance, status); + goto error_iounmap; + } + if (!restart && + ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || + time_after(jiffies, start + HZ * + ((startup_timeout > 60) + ? (startup_timeout - 60) + : (startup_timeout / 2))))) { + if (likely(!aac_src_restart_adapter(dev, + aac_src_check_health(dev)))) + start = jiffies; + ++restart; + } + msleep(1); + } + if (restart && aac_commit) + aac_commit = 1; + /* + * Fill in the common function dispatch table. + */ + dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; + dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; + dev->a_ops.adapter_notify = aac_src_notify_adapter; + dev->a_ops.adapter_sync_cmd = src_sync_cmd; + dev->a_ops.adapter_check_health = aac_src_check_health; + dev->a_ops.adapter_restart = aac_src_restart_adapter; + + /* + * First clear out all interrupts. Then enable the one's that we + * can handle. + */ + aac_adapter_comm(dev, AAC_COMM_MESSAGE); + aac_adapter_disable_int(dev); + src_writel(dev, MUnit.ODR_C, 0xffffffff); + aac_adapter_enable_int(dev); + + if (aac_init_adapter(dev) == NULL) + goto error_iounmap; + if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) + goto error_iounmap; + + dev->msi = aac_msi && !pci_enable_msi(dev->pdev); + + if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, + IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) { + + if (dev->msi) + pci_disable_msi(dev->pdev); + + printk(KERN_ERR "%s%d: Interrupt unavailable.\n", + name, instance); + goto error_iounmap; + } + dev->dbg_base = pci_resource_start(dev->pdev, 2); + dev->dbg_base_mapped = dev->regs.src.bar1; + dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; + + aac_adapter_enable_int(dev); + /* + * Tell the adapter that all is configured, and it can + * start accepting requests + */ + aac_src_start_adapter(dev); + + return 0; + +error_iounmap: + + return -1; +} -- cgit v0.10.2 From 70c7c88a1a65ca683eb7f3fe3ce79c72f29d845e Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 17 Mar 2011 16:22:17 -0500 Subject: [SCSI] libiscsi_tcp: use kmap in xmit path The xmit path can sleep with a page kmapped in the network xmit code while it waits for space to open up, so we have to use kmap instead of kmap atomic in that path. Signed-off-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 8eeb39f..e98ae33 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -132,14 +132,25 @@ static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv) if (page_count(sg_page(sg)) >= 1 && !recv) return; - segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + if (recv) { + segment->atomic_mapped = true; + segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + } else { + segment->atomic_mapped = false; + /* the xmit path can sleep with the page mapped so use kmap */ + segment->sg_mapped = kmap(sg_page(sg)); + } + segment->data = segment->sg_mapped + sg->offset + segment->sg_offset; } void iscsi_tcp_segment_unmap(struct iscsi_segment *segment) { if (segment->sg_mapped) { - kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + if (segment->atomic_mapped) + kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + else + kunmap(sg_page(segment->sg)); segment->sg_mapped = NULL; segment->data = NULL; } diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h index 741ae7e..e6b9fd2 100644 --- a/include/scsi/libiscsi_tcp.h +++ b/include/scsi/libiscsi_tcp.h @@ -47,6 +47,7 @@ struct iscsi_segment { struct scatterlist *sg; void *sg_mapped; unsigned int sg_offset; + bool atomic_mapped; iscsi_segment_done_fn_t *done; }; -- cgit v0.10.2 From 839900c69d5b8a07a4df8e9bd9d1e59a5c556811 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi Date: Thu, 17 Mar 2011 17:13:26 -0700 Subject: [SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called With kernel debugging enabled, holding cq_lock when calling bnx2fc_free_session_resc() which calls iounmap() leads to a warning stack trace [INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected]. iounmap() grabs a HARDIRQ-unsafe vmlist lock, so holding spin_lock_bh(cq_lock) when calling iounmap() will trigger the LOCKDEP warning. Since cq_lock is required only to guard against deletion, hold the lock just before freeing the cq. Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c index 7ea93af..7cc05e4 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c +++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c @@ -304,10 +304,8 @@ static void bnx2fc_upload_session(struct fcoe_port *port, " not sent to FW\n"); /* Free session resources */ - spin_lock_bh(&tgt->cq_lock); bnx2fc_free_session_resc(hba, tgt); bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id); - spin_unlock_bh(&tgt->cq_lock); } static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt, @@ -830,11 +828,13 @@ static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba, tgt->rq = NULL; } /* Free CQ */ + spin_lock_bh(&tgt->cq_lock); if (tgt->cq) { dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size, tgt->cq, tgt->cq_dma); tgt->cq = NULL; } + spin_unlock_bh(&tgt->cq_lock); /* Free SQ */ if (tgt->sq) { dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size, -- cgit v0.10.2 From 6702ca1dffbc864497b6f2c68543aad9bbf0bcee Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Thu, 17 Mar 2011 17:13:27 -0700 Subject: [SCSI] bnx2fc: Remove rtnl_trylock/restart_syscall checks Call rtnl_lock instead of rtnl_trylock & restart_syscall. This is bnx2fc counterpart of fcoe fixes, here is the reference: https://lists.open-fcoe.org/pipermail/devel/2011-March/011199.html Signed-off-by: Nithin Nayak Sujir Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index e476e87..13271a4 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1432,8 +1432,7 @@ static int bnx2fc_destroy(struct net_device *netdev) struct net_device *phys_dev; int rc = 0; - if (!rtnl_trylock()) - return restart_syscall(); + rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); #ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE @@ -1805,10 +1804,7 @@ static int bnx2fc_disable(struct net_device *netdev) struct ethtool_drvinfo drvinfo; int rc = 0; - if (!rtnl_trylock()) { - printk(KERN_ERR PFX "retrying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); @@ -1867,10 +1863,7 @@ static int bnx2fc_enable(struct net_device *netdev) struct ethtool_drvinfo drvinfo; int rc = 0; - if (!rtnl_trylock()) { - printk(KERN_ERR PFX "retrying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); BNX2FC_MISC_DBG("Entered %s\n", __func__); mutex_lock(&bnx2fc_dev_lock); @@ -1942,10 +1935,8 @@ static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) return -EIO; } - if (!rtnl_trylock()) { - printk(KERN_ERR "trying for rtnl_lock\n"); - return -EIO; - } + rtnl_lock(); + mutex_lock(&bnx2fc_dev_lock); #ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE -- cgit v0.10.2 From 0ea5c27583e1cc164bba7ca29fe48a225f52d19b Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi Date: Thu, 17 Mar 2011 17:13:29 -0700 Subject: [SCSI] bnx2fc: common free list for cleanup commands Cleanup commands are issued to the firmware to cleanup any stuck ios that are supposed to be implicitly aborted. In the worst case we can have all scsi ios filling up the free_list and we may not be able to allocate cleanup tasks. So the driver has to reserve free_list entries to be able to allocate the cleanup tasks. This reserve free_list common to all cpus is allocated as one additional entry in the per cpu free_lists. In bnx2fc_cmd_alloc(), there is a related fix to use get_cpu() for the free_list_index. This will prevent using the wrong index if the CPU is preempted. Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index df2fc09..464d71e 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -84,7 +84,9 @@ #define BNX2FC_NUM_MAX_SESS 128 #define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS)) -#define BNX2FC_MAX_OUTSTANDING_CMNDS 4096 +#define BNX2FC_MAX_OUTSTANDING_CMNDS 2048 +#define BNX2FC_CAN_QUEUE BNX2FC_MAX_OUTSTANDING_CMNDS +#define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE #define BNX2FC_MIN_PAYLOAD 256 #define BNX2FC_MAX_PAYLOAD 2048 @@ -98,7 +100,8 @@ #define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe)) #define BNX2FC_5771X_DB_PAGE_SIZE 128 -#define BNX2FC_MAX_TASKS BNX2FC_MAX_OUTSTANDING_CMNDS +#define BNX2FC_MAX_TASKS \ + (BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS) #define BNX2FC_TASK_SIZE 128 #define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE) #define BNX2FC_TASK_CTX_ARR_SZ (BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE) @@ -112,10 +115,10 @@ #define BNX2FC_WRITE (1 << 0) #define BNX2FC_MIN_XID 0 -#define BNX2FC_MAX_XID (BNX2FC_MAX_OUTSTANDING_CMNDS - 1) -#define FCOE_MIN_XID (BNX2FC_MAX_OUTSTANDING_CMNDS) -#define FCOE_MAX_XID \ - (BNX2FC_MAX_OUTSTANDING_CMNDS + (nr_cpu_ids * 256)) +#define BNX2FC_MAX_XID \ + (BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS - 1) +#define FCOE_MIN_XID (BNX2FC_MAX_XID + 1) +#define FCOE_MAX_XID (FCOE_MIN_XID + 4095) #define BNX2FC_MAX_LUN 0xFFFF #define BNX2FC_MAX_FCP_TGT 256 #define BNX2FC_MAX_CMD_LEN 16 diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 13271a4..90cd632 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2497,7 +2497,7 @@ static struct scsi_host_template bnx2fc_shost_template = { .change_queue_type = fc_change_queue_type, .this_id = -1, .cmd_per_lun = 3, - .can_queue = (BNX2FC_MAX_OUTSTANDING_CMNDS/2), + .can_queue = BNX2FC_CAN_QUEUE, .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 512, diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 0f1dd23..d3fc302 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -11,6 +11,9 @@ */ #include "bnx2fc.h" + +#define RESERVE_FREE_LIST_INDEX num_possible_cpus() + static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len, int bd_index); static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req); @@ -242,8 +245,9 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, u32 mem_size; u16 xid; int i; - int num_ios; + int num_ios, num_pri_ios; size_t bd_tbl_sz; + int arr_sz = num_possible_cpus() + 1; if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) { printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \ @@ -263,14 +267,14 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, } cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) * - num_possible_cpus(), GFP_KERNEL); + arr_sz, GFP_KERNEL); if (!cmgr->free_list) { printk(KERN_ERR PFX "failed to alloc free_list\n"); goto mem_err; } cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) * - num_possible_cpus(), GFP_KERNEL); + arr_sz, GFP_KERNEL); if (!cmgr->free_list_lock) { printk(KERN_ERR PFX "failed to alloc free_list_lock\n"); goto mem_err; @@ -279,13 +283,18 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, cmgr->hba = hba; cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1); - for (i = 0; i < num_possible_cpus(); i++) { + for (i = 0; i < arr_sz; i++) { INIT_LIST_HEAD(&cmgr->free_list[i]); spin_lock_init(&cmgr->free_list_lock[i]); } - /* Pre-allocated pool of bnx2fc_cmds */ + /* + * Pre-allocated pool of bnx2fc_cmds. + * Last entry in the free list array is the free list + * of slow path requests. + */ xid = BNX2FC_MIN_XID; + num_pri_ios = num_ios - BNX2FC_ELSTM_XIDS; for (i = 0; i < num_ios; i++) { io_req = kzalloc(sizeof(*io_req), GFP_KERNEL); @@ -298,11 +307,13 @@ struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba, INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout); io_req->xid = xid++; - if (io_req->xid >= BNX2FC_MAX_OUTSTANDING_CMNDS) - printk(KERN_ERR PFX "ERROR allocating xids - 0x%x\n", - io_req->xid); - list_add_tail(&io_req->link, - &cmgr->free_list[io_req->xid % num_possible_cpus()]); + if (i < num_pri_ios) + list_add_tail(&io_req->link, + &cmgr->free_list[io_req->xid % + num_possible_cpus()]); + else + list_add_tail(&io_req->link, + &cmgr->free_list[num_possible_cpus()]); io_req++; } @@ -389,7 +400,7 @@ free_cmd_pool: if (!cmgr->free_list) goto free_cmgr; - for (i = 0; i < num_possible_cpus(); i++) { + for (i = 0; i < num_possible_cpus() + 1; i++) { struct list_head *list; struct list_head *tmp; @@ -413,6 +424,7 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type) struct bnx2fc_cmd *io_req; struct list_head *listp; struct io_bdt *bd_tbl; + int index = RESERVE_FREE_LIST_INDEX; u32 max_sqes; u16 xid; @@ -432,26 +444,26 @@ struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type) * NOTE: Free list insertions and deletions are protected with * cmgr lock */ - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); - if ((list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) || + spin_lock_bh(&cmd_mgr->free_list_lock[index]); + if ((list_empty(&(cmd_mgr->free_list[index]))) || (tgt->num_active_ios.counter >= max_sqes)) { BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available " "ios(%d):sqes(%d)\n", tgt->num_active_ios.counter, tgt->max_sqes); - if (list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) + if (list_empty(&(cmd_mgr->free_list[index]))) printk(KERN_ERR PFX "elstm_alloc: list_empty\n"); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); return NULL; } listp = (struct list_head *) - cmd_mgr->free_list[smp_processor_id()].next; + cmd_mgr->free_list[index].next; list_del_init(listp); io_req = (struct bnx2fc_cmd *) listp; xid = io_req->xid; cmd_mgr->cmds[xid] = io_req; atomic_inc(&tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); INIT_LIST_HEAD(&io_req->link); @@ -479,27 +491,30 @@ static struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt) struct io_bdt *bd_tbl; u32 max_sqes; u16 xid; + int index = get_cpu(); max_sqes = BNX2FC_SCSI_MAX_SQES; /* * NOTE: Free list insertions and deletions are protected with * cmgr lock */ - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); - if ((list_empty(&cmd_mgr->free_list[smp_processor_id()])) || + spin_lock_bh(&cmd_mgr->free_list_lock[index]); + if ((list_empty(&cmd_mgr->free_list[index])) || (tgt->num_active_ios.counter >= max_sqes)) { - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + put_cpu(); return NULL; } listp = (struct list_head *) - cmd_mgr->free_list[smp_processor_id()].next; + cmd_mgr->free_list[index].next; list_del_init(listp); io_req = (struct bnx2fc_cmd *) listp; xid = io_req->xid; cmd_mgr->cmds[xid] = io_req; atomic_inc(&tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + put_cpu(); INIT_LIST_HEAD(&io_req->link); @@ -522,8 +537,15 @@ void bnx2fc_cmd_release(struct kref *ref) struct bnx2fc_cmd *io_req = container_of(ref, struct bnx2fc_cmd, refcount); struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr; + int index; + + if (io_req->cmd_type == BNX2FC_SCSI_CMD) + index = io_req->xid % num_possible_cpus(); + else + index = RESERVE_FREE_LIST_INDEX; - spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + + spin_lock_bh(&cmd_mgr->free_list_lock[index]); if (io_req->cmd_type != BNX2FC_SCSI_CMD) bnx2fc_free_mp_resc(io_req); cmd_mgr->cmds[io_req->xid] = NULL; @@ -531,9 +553,10 @@ void bnx2fc_cmd_release(struct kref *ref) list_del_init(&io_req->link); /* Add it to the free list */ list_add(&io_req->link, - &cmd_mgr->free_list[smp_processor_id()]); + &cmd_mgr->free_list[index]); atomic_dec(&io_req->tgt->num_active_ios); - spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]); + spin_unlock_bh(&cmd_mgr->free_list_lock[index]); + } static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req) -- cgit v0.10.2 From 686959736a8543265930c8d777a73b052bc57f87 Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Thu, 17 Mar 2011 17:13:31 -0700 Subject: [SCSI] bnx2fc: Call bnx2fc_return_rqe and bnx2fc_get_next_rqe with tgt lock held tgt lock is needed during - bnx2fc_return_rqe to protect the rq_prod_idx. bnx2fc_get_next_rqe to protect rq_cons_idx Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 4f40968..3de1ce7 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -590,7 +590,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ; + spin_lock_bh(&tgt->tgt_lock); rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq); + spin_unlock_bh(&tgt->tgt_lock); + if (rq_data) { buf = rq_data; } else { @@ -603,8 +606,10 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) } for (i = 0; i < num_rq; i++) { + spin_lock_bh(&tgt->tgt_lock); rq_data = (unsigned char *) bnx2fc_get_next_rqe(tgt, 1); + spin_unlock_bh(&tgt->tgt_lock); len = BNX2FC_RQ_BUF_SZ; memcpy(buf1, rq_data, len); buf1 += len; @@ -615,13 +620,15 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) if (buf != rq_data) kfree(buf); + spin_lock_bh(&tgt->tgt_lock); bnx2fc_return_rqe(tgt, num_rq); + spin_unlock_bh(&tgt->tgt_lock); break; case FCOE_ERROR_DETECTION_CQE_TYPE: /* - *In case of error reporting CQE a single RQ entry - * is consumes. + * In case of error reporting CQE a single RQ entry + * is consumed. */ spin_lock_bh(&tgt->tgt_lock); num_rq = 1; @@ -705,6 +712,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) *In case of warning reporting CQE a single RQ entry * is consumes. */ + spin_lock_bh(&tgt->tgt_lock); num_rq = 1; err_entry = (struct fcoe_err_report_entry *) bnx2fc_get_next_rqe(tgt, 1); @@ -717,6 +725,7 @@ static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe) err_entry->tx_buf_off, err_entry->rx_buf_off); bnx2fc_return_rqe(tgt, 1); + spin_unlock_bh(&tgt->tgt_lock); break; default: -- cgit v0.10.2 From 26ce67c3df46a8253e3bbf3eb87cc6782f6a6c91 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Thu, 17 Mar 2011 17:13:32 -0700 Subject: [SCSI] bnx2fc: Remove network bonding checking bnx2fc only operates on bnx2x hardware devices and not master bonding devices, so there is no need to check for bonding. Even if the bnx2x device is "enslaved" into a bonding device, FCoE is unaffected as it has its own MAC address and queues. Signed-off-by: Michael Chan Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 90cd632..0eec4e0 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1095,13 +1095,6 @@ static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba) struct netdev_hw_addr *ha; int sel_san_mac = 0; - /* Do not support for bonding device */ - if ((netdev->priv_flags & IFF_MASTER_ALB) || - (netdev->priv_flags & IFF_SLAVE_INACTIVE) || - (netdev->priv_flags & IFF_MASTER_8023AD)) { - return -EOPNOTSUPP; - } - /* setup Source MAC Address */ rcu_read_lock(); for_each_dev_addr(physdev, ha) { -- cgit v0.10.2 From 1294bfe60960c89a0c875cffb90c3bacf1d675d2 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi Date: Thu, 17 Mar 2011 17:13:34 -0700 Subject: [SCSI] bnx2fc: Fix MTU issue by using static MTU bnx2x now uses seperate MTUs for networking and FCoE. FCoE MTU is fixed to 2500 and bnx2fc now needs to match this logic by using FCOE_MTU instead of netdev->mtu. Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 464d71e..d869a4c 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -89,6 +89,10 @@ #define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE #define BNX2FC_MIN_PAYLOAD 256 #define BNX2FC_MAX_PAYLOAD 2048 +#define BNX2FC_MFS \ + (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header)) +#define BNX2FC_MINI_JUMBO_MTU 2500 + #define BNX2FC_RQ_BUF_SZ 256 #define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ)) @@ -128,7 +132,6 @@ #define BNX2FC_WAIT_CNT 120 #define BNX2FC_FW_TIMEOUT (3 * HZ) - #define PORT_MAX 2 #define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 0eec4e0..aab55e2 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -661,31 +661,6 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev) return 0; } -static int bnx2fc_mfs_update(struct fc_lport *lport) -{ - struct fcoe_port *port = lport_priv(lport); - struct bnx2fc_hba *hba = port->priv; - struct net_device *netdev = hba->netdev; - u32 mfs; - u32 max_mfs; - - mfs = netdev->mtu - (sizeof(struct fcoe_hdr) + - sizeof(struct fcoe_crc_eof)); - max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header); - BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs); - if (mfs > max_mfs) - mfs = max_mfs; - - /* Adjust mfs to be a multiple of 256 bytes */ - mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) * - BNX2FC_MIN_PAYLOAD); - mfs = mfs + sizeof(struct fc_frame_header); - - BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs); - if (fc_set_mfs(lport, mfs)) - return -EINVAL; - return 0; -} static void bnx2fc_link_speed_update(struct fc_lport *lport) { struct fcoe_port *port = lport_priv(lport); @@ -754,7 +729,7 @@ static int bnx2fc_net_config(struct fc_lport *lport) !hba->phys_dev->ethtool_ops->get_pauseparam) return -EOPNOTSUPP; - if (bnx2fc_mfs_update(lport)) + if (fc_set_mfs(lport, BNX2FC_MFS)) return -EINVAL; skb_queue_head_init(&port->fcoe_pending_queue); @@ -825,14 +800,6 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event) if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) printk(KERN_ERR "indicate_netevent: "\ "adapter is not UP!!\n"); - /* fall thru to update mfs if MTU has changed */ - case NETDEV_CHANGEMTU: - BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n"); - bnx2fc_mfs_update(lport); - mutex_lock(&lport->lp_mutex); - list_for_each_entry(vport, &lport->vports, list) - bnx2fc_mfs_update(vport); - mutex_unlock(&lport->lp_mutex); break; case NETDEV_DOWN: diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 3de1ce7..1b680e2 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -87,7 +87,7 @@ int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba) fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma; fcoe_init1.task_list_pbl_addr_hi = (u32) ((u64) hba->task_ctx_bd_dma >> 32); - fcoe_init1.mtu = hba->netdev->mtu; + fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU; fcoe_init1.flags = (PAGE_SHIFT << FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT); -- cgit v0.10.2 From c94460fd29a9893eb677d2e0831a247a185c7a22 Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi Date: Thu, 17 Mar 2011 17:13:35 -0700 Subject: [SCSI] bnx2fc: Remove unnecessary module state checks The check for module state MODULE_STATE_LIVE is no longer required for LLDs, as libfcoe transport takes care of it. Reference: http://marc.info/?l=linux-scsi&m=129989565903046&w=2 Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index aab55e2..38a00fe 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1395,12 +1395,6 @@ static int bnx2fc_destroy(struct net_device *netdev) rtnl_lock(); mutex_lock(&bnx2fc_dev_lock); -#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto netdev_err; - } -#endif /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1768,11 +1762,6 @@ static int bnx2fc_disable(struct net_device *netdev) mutex_lock(&bnx2fc_dev_lock); - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto nodev; - } - /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1828,11 +1817,6 @@ static int bnx2fc_enable(struct net_device *netdev) BNX2FC_MISC_DBG("Entered %s\n", __func__); mutex_lock(&bnx2fc_dev_lock); - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto nodev; - } - /* obtain physical netdev */ if (netdev->priv_flags & IFF_802_1Q_VLAN) phys_dev = vlan_dev_real_dev(netdev); @@ -1899,13 +1883,6 @@ static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) mutex_lock(&bnx2fc_dev_lock); -#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE - if (THIS_MODULE->state != MODULE_STATE_LIVE) { - rc = -ENODEV; - goto mod_err; - } -#endif - if (!try_module_get(THIS_MODULE)) { rc = -EINVAL; goto mod_err; -- cgit v0.10.2 From d9f7f37b90e7b0180961cb6567ae423ac3757db8 Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Thu, 17 Mar 2011 17:13:37 -0700 Subject: [SCSI] bnx2fc: Bump version to 1.0.1 Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index d869a4c..b6d350a 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -62,7 +62,7 @@ #include "bnx2fc_constants.h" #define BNX2FC_NAME "bnx2fc" -#define BNX2FC_VERSION "1.0.0" +#define BNX2FC_VERSION "1.0.1" #define PFX "bnx2fc: " diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 38a00fe..2056890 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -21,7 +21,7 @@ DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); #define DRV_MODULE_NAME "bnx2fc" #define DRV_MODULE_VERSION BNX2FC_VERSION -#define DRV_MODULE_RELDATE "Jan 25, 2011" +#define DRV_MODULE_RELDATE "Mar 17, 2011" static char version[] __devinitdata = -- cgit v0.10.2 From 8c3adc796f32fa4878ec843f8960717ba377e024 Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Fri, 18 Mar 2011 11:24:23 -0400 Subject: [SCSI] ses: add subenclosure support There have been many complaints that an enclosure with subenclosures isn't attached to by the ses driver. Until now, though, no-one had been willing to provide access to one. Subenclosures are added simply by flattening the tree (i.e. all subenclosure devices show up under the one main device). This may have consequences if the naming is only unique per subenclosure, but that's a bug for another day. The tested array had no page 7, so no device naming at all. It also only had the disk devices on one of its subenclosures (all the others had power, fans, temperature and various sensors), so testing of this is fairly rudimentary. Signed-off-by: James Bottomley diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 3b00e90..eb7a3e8 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -35,9 +35,11 @@ struct ses_device { unsigned char *page1; + unsigned char *page1_types; unsigned char *page2; unsigned char *page10; short page1_len; + short page1_num_types; short page2_len; short page10_len; }; @@ -110,12 +112,12 @@ static int ses_set_page2_descriptor(struct enclosure_device *edev, int i, j, count = 0, descriptor = ecomp->number; struct scsi_device *sdev = to_scsi_device(edev->edev.parent); struct ses_device *ses_dev = edev->scratch; - unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + unsigned char *type_ptr = ses_dev->page1_types; unsigned char *desc_ptr = ses_dev->page2 + 8; /* Clear everything */ memset(desc_ptr, 0, ses_dev->page2_len - 8); - for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) { + for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { desc_ptr += 4; if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE && @@ -140,12 +142,12 @@ static unsigned char *ses_get_page2_descriptor(struct enclosure_device *edev, int i, j, count = 0, descriptor = ecomp->number; struct scsi_device *sdev = to_scsi_device(edev->edev.parent); struct ses_device *ses_dev = edev->scratch; - unsigned char *type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + unsigned char *type_ptr = ses_dev->page1_types; unsigned char *desc_ptr = ses_dev->page2 + 8; ses_recv_diag(sdev, 2, ses_dev->page2, ses_dev->page2_len); - for (i = 0; i < ses_dev->page1[10]; i++, type_ptr += 4) { + for (i = 0; i < ses_dev->page1_num_types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { desc_ptr += 4; if (type_ptr[0] != ENCLOSURE_COMPONENT_DEVICE && @@ -358,7 +360,7 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, unsigned char *buf = NULL, *type_ptr, *desc_ptr, *addl_desc_ptr = NULL; int i, j, page7_len, len, components; struct ses_device *ses_dev = edev->scratch; - int types = ses_dev->page1[10]; + int types = ses_dev->page1_num_types; unsigned char *hdr_buf = kzalloc(INIT_ALLOC_SIZE, GFP_KERNEL); if (!hdr_buf) @@ -393,7 +395,7 @@ static void ses_enclosure_data_process(struct enclosure_device *edev, } if (ses_dev->page10) addl_desc_ptr = ses_dev->page10 + 8; - type_ptr = ses_dev->page1 + 12 + ses_dev->page1[11]; + type_ptr = ses_dev->page1_types; components = 0; for (i = 0; i < types; i++, type_ptr += 4) { for (j = 0; j < type_ptr[1]; j++) { @@ -503,6 +505,7 @@ static int ses_intf_add(struct device *cdev, u32 result; int i, types, len, components = 0; int err = -ENOMEM; + int num_enclosures; struct enclosure_device *edev; struct ses_component *scomp = NULL; @@ -530,16 +533,6 @@ static int ses_intf_add(struct device *cdev, if (result) goto recv_failed; - if (hdr_buf[1] != 0) { - /* FIXME: need subenclosure support; I've just never - * seen a device with subenclosures and it makes the - * traversal routines more complex */ - sdev_printk(KERN_ERR, sdev, - "FIXME driver has no support for subenclosures (%d)\n", - hdr_buf[1]); - goto err_free; - } - len = (hdr_buf[2] << 8) + hdr_buf[3] + 4; buf = kzalloc(len, GFP_KERNEL); if (!buf) @@ -549,11 +542,24 @@ static int ses_intf_add(struct device *cdev, if (result) goto recv_failed; - types = buf[10]; + types = 0; - type_ptr = buf + 12 + buf[11]; + /* we always have one main enclosure and the rest are referred + * to as secondary subenclosures */ + num_enclosures = buf[1] + 1; - for (i = 0; i < types; i++, type_ptr += 4) { + /* begin at the enclosure descriptor */ + type_ptr = buf + 8; + /* skip all the enclosure descriptors */ + for (i = 0; i < num_enclosures && type_ptr < buf + len; i++) { + types += type_ptr[2]; + type_ptr += type_ptr[3] + 4; + } + + ses_dev->page1_types = type_ptr; + ses_dev->page1_num_types = types; + + for (i = 0; i < types && type_ptr < buf + len; i++, type_ptr += 4) { if (type_ptr[0] == ENCLOSURE_COMPONENT_DEVICE || type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE) components += type_ptr[1]; -- cgit v0.10.2 From 9640de2099a3c7936b65bf3a45e67a324de950c8 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:24 -0700 Subject: [SCSI] qla4xxx: cleanup qla4xxx_initialize_ddb_list() Remove process all aen code from qla4xxx_initialize_ddb_list() as DPC activities should be done in DPC only. Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 1629c48..22fc57e 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1013,13 +1013,6 @@ static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) return status; - /* - * Targets can come online after the inital discovery, so processing - * the aens here will catch them. - */ - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) - qla4xxx_process_aen(ha, PROCESS_ALL_AENS); - return status; } -- cgit v0.10.2 From 99b53bf50cc4711a3c82dfc704911ff738a41758 Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai Date: Mon, 21 Mar 2011 03:34:25 -0700 Subject: [SCSI] qla4xxx: Do not send mbox command if FW is in failed state FW is not able to process mbox command if FW state is failed. This will cause mbox command to timeout and adapter reset. We have separate function to detect FW failed state and do adapter reset. So to avoid mbox command timeout, do not process mbox command in case of FW state failed. Signed-off-by: Vikas Chaudhary Signed-off-by: Prasanna Mumbai Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index f65626a..47b2591 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -32,6 +32,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, u_long wait_count; uint32_t intr_status; unsigned long flags = 0; + uint32_t dev_state; /* Make sure that pointers are valid */ if (!mbx_cmd || !mbx_sts) { @@ -40,12 +41,23 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, return status; } - if (is_qla8022(ha) && - test_bit(AF_FW_RECOVERY, &ha->flags)) { - DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: prematurely " - "completing mbx cmd as firmware recovery detected\n", - ha->host_no, __func__)); - return status; + if (is_qla8022(ha)) { + if (test_bit(AF_FW_RECOVERY, &ha->flags)) { + DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: " + "prematurely completing mbx cmd as firmware " + "recovery detected\n", ha->host_no, __func__)); + return status; + } + /* Do not send any mbx cmd if h/w is in failed state*/ + qla4_8xxx_idc_lock(ha); + dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); + qla4_8xxx_idc_unlock(ha); + if (dev_state == QLA82XX_DEV_FAILED) { + ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in " + "failed state, do not send any mailbox commands\n", + ha->host_no, __func__); + return status; + } } if ((is_aer_supported(ha)) && -- cgit v0.10.2 From f9880e76fd15795b5917b20f54eeca764b0f3ccb Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai Date: Mon, 21 Mar 2011 03:34:26 -0700 Subject: [SCSI] qla4xxx: Do not retry ISP82XX initialization if H/W state is failed Signed-off-by: Vikas Chaudhary Signed-off-by: Prasanna Mumbai Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 967836e..409b20d 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1630,6 +1630,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, uint8_t init_retry_count = 0; char buf[34]; struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; + uint32_t dev_state; if (pci_enable_device(pdev)) return -1; @@ -1713,6 +1714,18 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); while ((!test_bit(AF_ONLINE, &ha->flags)) && init_retry_count++ < MAX_INIT_RETRIES) { + + if (is_qla8022(ha)) { + qla4_8xxx_idc_lock(ha); + dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); + qla4_8xxx_idc_unlock(ha); + if (dev_state == QLA82XX_DEV_FAILED) { + ql4_printk(KERN_WARNING, ha, "%s: don't retry " + "initialize adapter. H/W is in failed state\n", + __func__); + break; + } + } DEBUG2(printk("scsi: %s: retrying adapter initialization " "(%d)\n", __func__, init_retry_count)); -- cgit v0.10.2 From 7edd9a7b28f57d8a5bcdb1a0def2aa09d1dd49d4 Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Mon, 21 Mar 2011 03:34:27 -0700 Subject: [SCSI] qla4xxx: cleanup DDB relogin logic during initialization Driver has capability to add device dynamically and present them to OS, driver no longer need to wait for DDBs to come online during driver initialization. Driver still issues a relogin for DDBs that are not online, but no longer wait for DDB to come online. Signed-off-by: Vikas Chaudhary Signed-off-by: Karen Higgins Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 2fc0045..b46d0dc 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -233,9 +233,6 @@ struct ddb_entry { unsigned long flags; /* DDB Flags */ - unsigned long dev_scan_wait_to_start_relogin; - unsigned long dev_scan_wait_to_complete_relogin; - uint16_t fw_ddb_index; /* DDB firmware index */ uint16_t options; uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */ @@ -479,7 +476,6 @@ struct scsi_qla_host { uint32_t timer_active; /* Recovery Timers */ - uint32_t discovery_wait; atomic_t check_relogin_timeouts; uint32_t retry_reset_ha_cnt; uint32_t isp_reset_timer; /* reset test timer */ @@ -765,6 +761,5 @@ static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a) /* Defines for process_aen() */ #define PROCESS_ALL_AENS 0 #define FLUSH_DDB_CHANGED_AENS 1 -#define RELOGIN_DDB_CHANGED_AENS 2 #endif /*_QLA4XXX_H */ diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index 8fad99b..cc53e3f 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -136,7 +136,6 @@ void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha); void qla4_8xxx_set_drv_active(struct scsi_qla_host *ha); extern int ql4xextended_error_logging; -extern int ql4xdiscoverywait; extern int ql4xdontresethba; extern int ql4xenablemsix; diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 22fc57e..bf1c30b 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -723,13 +723,38 @@ int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err) return relogin; } +static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) +{ + unsigned long wtime; + + /* Flush the 0x8014 AEN from the firmware as a result of + * Auto connect. We are basically doing get_firmware_ddb() + * to determine whether we need to log back in or not. + * Trying to do a set ddb before we have processed 0x8014 + * will result in another set_ddb() for the same ddb. In other + * words there will be stale entries in the aen_q. + */ + wtime = jiffies + (2 * HZ); + do { + if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) + if (ha->firmware_state & (BIT_2 | BIT_0)) + return; + + if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) + qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); + + msleep(1000); + } while (!time_after_eq(jiffies, wtime)); +} + /** - * qla4xxx_configure_ddbs - builds driver ddb list + * qla4xxx_build_ddb_list - builds driver ddb list * @ha: Pointer to host adapter structure. * * This routine searches for all valid firmware ddb entries and builds * an internal ddb list. Ddbs that are considered valid are those with * a device state of SESSION_ACTIVE. + * A relogin (set_ddb) is issued for DDBs that are not online. **/ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) { @@ -744,6 +769,8 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha) uint32_t ipv6_device; uint32_t new_tgt; + qla4xxx_flush_AENS(ha); + fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), &fw_ddb_entry_dma, GFP_KERNEL); if (fw_ddb_entry == NULL) { @@ -847,144 +874,6 @@ exit_build_ddb_list_no_free: return status; } -struct qla4_relog_scan { - int halt_wait; - uint32_t conn_err; - uint32_t fw_ddb_index; - uint32_t next_fw_ddb_index; - uint32_t fw_ddb_device_state; -}; - -static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs) -{ - struct ddb_entry *ddb_entry; - - if (qla4_is_relogin_allowed(ha, rs->conn_err)) { - /* We either have a device that is in - * the process of relogging in or a - * device that is waiting to be - * relogged in */ - rs->halt_wait = 0; - - ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, - rs->fw_ddb_index); - if (ddb_entry == NULL) - return QLA_ERROR; - - if (ddb_entry->dev_scan_wait_to_start_relogin != 0 - && time_after_eq(jiffies, - ddb_entry-> - dev_scan_wait_to_start_relogin)) - { - ddb_entry->dev_scan_wait_to_start_relogin = 0; - qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0); - } - } - return QLA_SUCCESS; -} - -static int qla4_scan_for_relogin(struct scsi_qla_host *ha, - struct qla4_relog_scan *rs) -{ - int error; - - /* scan for relogins - * ----------------- */ - for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES; - rs->fw_ddb_index = rs->next_fw_ddb_index) { - if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0, - NULL, &rs->next_fw_ddb_index, - &rs->fw_ddb_device_state, - &rs->conn_err, NULL, NULL) - == QLA_ERROR) - return QLA_ERROR; - - if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS) - rs->halt_wait = 0; - - if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED || - rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) { - error = qla4_test_rdy(ha, rs); - if (error) - return error; - } - - /* We know we've reached the last device when - * next_fw_ddb_index is 0 */ - if (rs->next_fw_ddb_index == 0) - break; - } - return QLA_SUCCESS; -} - -/** - * qla4xxx_devices_ready - wait for target devices to be logged in - * @ha: pointer to adapter structure - * - * This routine waits up to ql4xdiscoverywait seconds - * F/W database during driver load time. - **/ -static int qla4xxx_devices_ready(struct scsi_qla_host *ha) -{ - int error; - unsigned long discovery_wtime; - struct qla4_relog_scan rs; - - discovery_wtime = jiffies + (ql4xdiscoverywait * HZ); - - DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait)); - do { - /* poll for AEN. */ - qla4xxx_get_firmware_state(ha); - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) { - /* Set time-between-relogin timer */ - qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS); - } - - /* if no relogins active or needed, halt discvery wait */ - rs.halt_wait = 1; - - error = qla4_scan_for_relogin(ha, &rs); - - if (rs.halt_wait) { - DEBUG2(printk("scsi%ld: %s: Delay halted. Devices " - "Ready.\n", ha->host_no, __func__)); - return QLA_SUCCESS; - } - - msleep(2000); - } while (!time_after_eq(jiffies, discovery_wtime)); - - DEBUG3(qla4xxx_get_conn_event_log(ha)); - - return QLA_SUCCESS; -} - -static void qla4xxx_flush_AENS(struct scsi_qla_host *ha) -{ - unsigned long wtime; - - /* Flush the 0x8014 AEN from the firmware as a result of - * Auto connect. We are basically doing get_firmware_ddb() - * to determine whether we need to log back in or not. - * Trying to do a set ddb before we have processed 0x8014 - * will result in another set_ddb() for the same ddb. In other - * words there will be stale entries in the aen_q. - */ - wtime = jiffies + (2 * HZ); - do { - if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) - if (ha->firmware_state & (BIT_2 | BIT_0)) - return; - - if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) - qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); - - msleep(1000); - } while (!time_after_eq(jiffies, wtime)); - -} - static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) { uint16_t fw_ddb_index; @@ -996,22 +885,12 @@ static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha) for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++) ha->fw_ddb_index_map[fw_ddb_index] = - (struct ddb_entry *)INVALID_ENTRY; + (struct ddb_entry *)INVALID_ENTRY; ha->tot_ddbs = 0; - qla4xxx_flush_AENS(ha); - - /* Wait for an AEN */ - qla4xxx_devices_ready(ha); - - /* - * First perform device discovery for active - * fw ddb indexes and build - * ddb list. - */ - if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR) - return status; + /* Perform device discovery and build ddb list. */ + status = qla4xxx_build_ddb_list(ha); return status; } diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 03e028e..2ef1a98 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -1008,34 +1008,9 @@ void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) mbox_sts[0], mbox_sts[2], mbox_sts[3])); break; - } else if (process_aen == RELOGIN_DDB_CHANGED_AENS) { - /* for use during init time, we only want to - * relogin non-active ddbs */ - struct ddb_entry *ddb_entry; - - ddb_entry = - /* FIXME: name length? */ - qla4xxx_lookup_ddb_by_fw_index(ha, - mbox_sts[2]); - if (!ddb_entry) - break; - - ddb_entry->dev_scan_wait_to_complete_relogin = - 0; - ddb_entry->dev_scan_wait_to_start_relogin = - jiffies + - ((ddb_entry->default_time2wait + - 4) * HZ); - - DEBUG2(printk("scsi%ld: ddb [%d] initiate" - " RELOGIN after %d seconds\n", - ha->host_no, - ddb_entry->fw_ddb_index, - ddb_entry->default_time2wait + - 4)); - break; } - + case PROCESS_ALL_AENS: + default: if (mbox_sts[1] == 0) { /* Global DB change. */ qla4xxx_reinitialize_ddb_list(ha); } else if (mbox_sts[1] == 1) { /* Specific device. */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 47b2591..379df2b 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -407,9 +407,6 @@ qla4xxx_update_local_ifcb(struct scsi_qla_host *ha, /*memcpy(ha->alias, init_fw_cb->Alias, min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/ - /* Save Command Line Paramater info */ - ha->discovery_wait = ql4xdiscoverywait; - if (ha->acb_version == ACB_SUPPORTED) { ha->ipv6_options = init_fw_cb->ipv6_opts; ha->ipv6_addl_options = init_fw_cb->ipv6_addtl_opts; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 409b20d..1d5c6fb 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -29,10 +29,6 @@ static struct kmem_cache *srb_cachep; /* * Module parameter information and variables */ -int ql4xdiscoverywait = 60; -module_param(ql4xdiscoverywait, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(ql4xdiscoverywait, "Discovery wait time"); - int ql4xdontresethba = 0; module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql4xdontresethba, -- cgit v0.10.2 From 58da51dcfc13b2222ce8565e308852aef001f5d2 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:28 -0700 Subject: [SCSI] qla4xxx: remove unused ddb flag DF_NO_RELOGIN Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index b46d0dc..7aa60ee 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -286,8 +286,6 @@ struct ddb_entry { * DDB flags. */ #define DF_RELOGIN 0 /* Relogin to device */ -#define DF_NO_RELOGIN 1 /* Do not relogin if IOCTL - * logged it out */ #define DF_ISNS_DISCOVERED 2 /* Device was discovered via iSNS */ #define DF_FO_MASKED 3 diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index bf1c30b..8b5453a 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1445,7 +1445,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, atomic_set(&ddb_entry->relogin_retry_count, 0); atomic_set(&ddb_entry->relogin_timer, 0); clear_bit(DF_RELOGIN, &ddb_entry->flags); - clear_bit(DF_NO_RELOGIN, &ddb_entry->flags); iscsi_unblock_session(ddb_entry->sess); iscsi_session_event(ddb_entry->sess, ISCSI_KEVENT_CREATE_SESSION); @@ -1470,7 +1469,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, */ if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED && !test_bit(DF_RELOGIN, &ddb_entry->flags) && - !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) && qla4_is_relogin_allowed(ha, conn_err)) { /* * This triggers a relogin. After the relogin_timer -- cgit v0.10.2 From 7eece5a084264c1bff908b0d6a1b176b39dd272f Mon Sep 17 00:00:00 2001 From: Karen Higgins Date: Mon, 21 Mar 2011 03:34:29 -0700 Subject: [SCSI] qla4xxx: Prevent other port reinitialization during remove_adapter remove ha flag AF_HBA_GOING_AWAY and added flag AF_HA_REMOVAL to mark the other ISP-4xxx port to indicate that the driver is being removed, so that the other port will not re-initialize while in the process of removing the ha due to driver unload or hba hotplug. Signed-off-by: Karen Higgins Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h index 7aa60ee..c1f8d1b 100644 --- a/drivers/scsi/qla4xxx/ql4_def.h +++ b/drivers/scsi/qla4xxx/ql4_def.h @@ -53,6 +53,9 @@ #define PCI_DEVICE_ID_QLOGIC_ISP8022 0x8022 #endif +#define ISP4XXX_PCI_FN_1 0x1 +#define ISP4XXX_PCI_FN_2 0x3 + #define QLA_SUCCESS 0 #define QLA_ERROR 1 @@ -371,7 +374,7 @@ struct scsi_qla_host { #define AF_LINK_UP 8 /* 0x00000100 */ #define AF_IRQ_ATTACHED 10 /* 0x00000400 */ #define AF_DISABLE_ACB_COMPLETE 11 /* 0x00000800 */ -#define AF_HBA_GOING_AWAY 12 /* 0x00001000 */ +#define AF_HA_REMOVAL 12 /* 0x00001000 */ #define AF_INTx_ENABLED 15 /* 0x00008000 */ #define AF_MSI_ENABLED 16 /* 0x00010000 */ #define AF_MSIX_ENABLED 17 /* 0x00020000 */ diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c index 2ef1a98..2f40ac7 100644 --- a/drivers/scsi/qla4xxx/ql4_isr.c +++ b/drivers/scsi/qla4xxx/ql4_isr.c @@ -801,7 +801,7 @@ irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id) &ha->reg->ctrl_status); readl(&ha->reg->ctrl_status); - if (!test_bit(AF_HBA_GOING_AWAY, &ha->flags)) + if (!test_bit(AF_HA_REMOVAL, &ha->flags)) set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); break; diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 379df2b..199fa64 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -151,7 +151,7 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount, if (test_bit(AF_IRQ_ATTACHED, &ha->flags) && test_bit(AF_INTERRUPTS_ON, &ha->flags) && test_bit(AF_ONLINE, &ha->flags) && - !test_bit(AF_HBA_GOING_AWAY, &ha->flags)) { + !test_bit(AF_HA_REMOVAL, &ha->flags)) { /* Do not poll for completion. Use completion queue */ set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags); wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 1d5c6fb..f80b702 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -749,12 +749,6 @@ static void qla4xxx_timer(struct scsi_qla_host *ha) if (!pci_channel_offline(ha->pdev)) pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); - if (test_bit(AF_HBA_GOING_AWAY, &ha->flags)) { - DEBUG2(ql4_printk(KERN_INFO, ha, "%s exited. HBA GOING AWAY\n", - __func__)); - return; - } - if (is_qla8022(ha)) { qla4_8xxx_watchdog(ha); } @@ -1063,7 +1057,6 @@ void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) /* Disable the board */ ql4_printk(KERN_INFO, ha, "Disabling the board\n"); - set_bit(AF_HBA_GOING_AWAY, &ha->flags); qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); qla4xxx_mark_all_devices_missing(ha); @@ -1255,11 +1248,6 @@ static void qla4xxx_do_dpc(struct work_struct *work) goto do_dpc_exit; } - /* HBA is in the process of being permanently disabled. - * Don't process anything */ - if (test_bit(AF_HBA_GOING_AWAY, &ha->flags)) - return; - if (is_qla8022(ha)) { if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { qla4_8xxx_idc_lock(ha); @@ -1824,6 +1812,44 @@ probe_disable_device: } /** + * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize + * @ha: pointer to adapter structure + * + * Mark the other ISP-4xxx port to indicate that the driver is being removed, + * so that the other port will not re-initialize while in the process of + * removing the ha due to driver unload or hba hotplug. + **/ +static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) +{ + struct scsi_qla_host *other_ha = NULL; + struct pci_dev *other_pdev = NULL; + int fn = ISP4XXX_PCI_FN_2; + + /*iscsi function numbers for ISP4xxx is 1 and 3*/ + if (PCI_FUNC(ha->pdev->devfn) & BIT_1) + fn = ISP4XXX_PCI_FN_1; + + other_pdev = + pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), + ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), + fn)); + + /* Get other_ha if other_pdev is valid and state is enable*/ + if (other_pdev) { + if (atomic_read(&other_pdev->enable_cnt)) { + other_ha = pci_get_drvdata(other_pdev); + if (other_ha) { + set_bit(AF_HA_REMOVAL, &other_ha->flags); + DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " + "Prevent %s reinit\n", __func__, + dev_name(&other_ha->pdev->dev))); + } + } + pci_dev_put(other_pdev); + } +} + +/** * qla4xxx_remove_adapter - calback function to remove adapter. * @pci_dev: PCI device pointer **/ @@ -1833,7 +1859,8 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) ha = pci_get_drvdata(pdev); - set_bit(AF_HBA_GOING_AWAY, &ha->flags); + if (!is_qla8022(ha)) + qla4xxx_prevent_other_port_reinit(ha); /* remove devs from iscsi_sessions to scsi_devices */ qla4xxx_free_ddb_list(ha); -- cgit v0.10.2 From fc7657c9d98c250c9fd212348e6e156c73885cc4 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:30 -0700 Subject: [SCSI] qla4xxx: cleanup function qla4xxx_process_ddb_changed We don't need to check ddb old state we can take action based on ddb new state. Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 8b5453a..bbb2e90 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1409,7 +1409,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, uint32_t state, uint32_t conn_err) { struct ddb_entry * ddb_entry; - uint32_t old_fw_ddb_device_state; /* check for out of range index */ if (fw_ddb_index >= MAX_DDB_ENTRIES) @@ -1425,22 +1424,14 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, } /* Device already exists in our database. */ - old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state; DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for " "index [%d]\n", ha->host_no, __func__, ddb_entry->fw_ddb_device_state, state, fw_ddb_index)); - if (old_fw_ddb_device_state == state && - state == DDB_DS_SESSION_ACTIVE) { - if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - iscsi_unblock_session(ddb_entry->sess); - } - return QLA_SUCCESS; - } ddb_entry->fw_ddb_device_state = state; /* Device is back online. */ - if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { + if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && + (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); atomic_set(&ddb_entry->relogin_retry_count, 0); atomic_set(&ddb_entry->relogin_timer, 0); @@ -1452,7 +1443,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index, * Change the lun state to READY in case the lun TIMEOUT before * the device came back. */ - } else { + } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) { /* Device went away, mark device missing */ if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing " -- cgit v0.10.2 From 8bb4033d2b91e055a32e905e10a7034a4b077b7a Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:31 -0700 Subject: [SCSI] qla4xxx: Add support for ql4xmaxqdepth command line parameter This provides the flexibility to modify the qdepth based on different target devices to make the best use of system resources. Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f80b702..df46e5d 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -51,6 +51,11 @@ MODULE_PARM_DESC(ql4xenablemsix, " 2 = enable MSI interrupt mechanism."); #define QL4_DEF_QDEPTH 32 +static int ql4xmaxqdepth = QL4_DEF_QDEPTH; +module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ql4xmaxqdepth, + "Maximum queue depth to report for target devices.\n" + " Default: 32."); /* * SCSI host template entry points @@ -1904,10 +1909,15 @@ static int qla4xxx_slave_alloc(struct scsi_device *sdev) { struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); struct ddb_entry *ddb = sess->dd_data; + int queue_depth = QL4_DEF_QDEPTH; sdev->hostdata = ddb; sdev->tagged_supported = 1; - scsi_activate_tcq(sdev, QL4_DEF_QDEPTH); + + if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) + queue_depth = ql4xmaxqdepth; + + scsi_activate_tcq(sdev, queue_depth); return 0; } -- cgit v0.10.2 From 3038727c8391ab1f3e5f5cf764f9f74164e6b47a Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:32 -0700 Subject: [SCSI] qla4xxx: add support for ql4xsess_recovery_tmo cmd line param Target Session Recovery Timeout Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index df46e5d..b7bc699 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -57,6 +57,12 @@ MODULE_PARM_DESC(ql4xmaxqdepth, "Maximum queue depth to report for target devices.\n" " Default: 32."); +static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; +module_param(ql4xsess_recovery_tmo, int, S_IRUGO); +MODULE_PARM_DESC(ql4xsess_recovery_tmo, + "Target Session Recovery Timeout.\n" + " Default: 30 sec."); + /* * SCSI host template entry points */ @@ -166,7 +172,7 @@ static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout " "of (%d) secs exhausted, marking device DEAD.\n", ha->host_no, __func__, ddb_entry->fw_ddb_index, - QL4_SESS_RECOVERY_TMO)); + ddb_entry->sess->recovery_tmo)); } } @@ -296,7 +302,7 @@ int qla4xxx_add_sess(struct ddb_entry *ddb_entry) { int err; - ddb_entry->sess->recovery_tmo = QL4_SESS_RECOVERY_TMO; + ddb_entry->sess->recovery_tmo = ql4xsess_recovery_tmo; err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index); if (err) { -- cgit v0.10.2 From 2d7924e6be8b994f718429001457e677a2159445 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:33 -0700 Subject: [SCSI] qla4xxx: added new function qla4xxx_relogin_all_devices Move relogin to all devices code from do_dpc to new fuction qla4xxx_relogin_all_devices() Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index b7bc699..a4acb0d 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1218,6 +1218,27 @@ recover_ha_init_adapter: return status; } +static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) +{ + struct ddb_entry *ddb_entry, *dtemp; + + list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { + if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) || + (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) { + if (ddb_entry->fw_ddb_device_state == + DDB_DS_SESSION_ACTIVE) { + atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); + ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" + " marked ONLINE\n", ha->host_no, __func__, + ddb_entry->fw_ddb_index); + + iscsi_unblock_session(ddb_entry->sess); + } else + qla4xxx_relogin_device(ha, ddb_entry); + } + } +} + void qla4xxx_wake_dpc(struct scsi_qla_host *ha) { if (ha->dpc_thread && @@ -1326,13 +1347,7 @@ dpc_post_reset_ha: if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { if (!test_bit(AF_LINK_UP, &ha->flags)) { /* ---- link down? --- */ - list_for_each_entry_safe(ddb_entry, dtemp, - &ha->ddb_list, list) { - if (atomic_read(&ddb_entry->state) == - DDB_STATE_ONLINE) - qla4xxx_mark_device_missing(ha, - ddb_entry); - } + qla4xxx_mark_all_devices_missing(ha); } else { /* ---- link up? --- * * F/W will auto login to all devices ONLY ONCE after @@ -1341,30 +1356,7 @@ dpc_post_reset_ha: * manually relogin to devices when recovering from * connection failures, logouts, expired KATO, etc. */ - list_for_each_entry_safe(ddb_entry, dtemp, - &ha->ddb_list, list) { - if ((atomic_read(&ddb_entry->state) == - DDB_STATE_MISSING) || - (atomic_read(&ddb_entry->state) == - DDB_STATE_DEAD)) { - if (ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_ACTIVE) { - atomic_set(&ddb_entry->state, - DDB_STATE_ONLINE); - ql4_printk(KERN_INFO, ha, - "scsi%ld: %s: ddb[%d]" - " marked ONLINE\n", - ha->host_no, __func__, - ddb_entry->fw_ddb_index); - - iscsi_unblock_session( - ddb_entry->sess); - } else - qla4xxx_relogin_device( - ha, ddb_entry); - } - - } + qla4xxx_relogin_all_devices(ha); } } -- cgit v0.10.2 From d32cee3c2d742784ec6ac0b4ca5732e98b17bc5c Mon Sep 17 00:00:00 2001 From: Prasanna Mumbai Date: Mon, 21 Mar 2011 03:34:35 -0700 Subject: [SCSI] qla4xxx: masking required bits of add_fw_options during initialization Signed-off-by: Vikas Chaudhary Signed-off-by: Prasanna Mumbai Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h index c198579..31e2bf9 100644 --- a/drivers/scsi/qla4xxx/ql4_fw.h +++ b/drivers/scsi/qla4xxx/ql4_fw.h @@ -455,6 +455,7 @@ struct addr_ctrl_blk { uint8_t res0; /* 07 */ uint16_t eth_mtu_size; /* 08-09 */ uint16_t add_fw_options; /* 0A-0B */ +#define SERIALIZE_TASK_MGMT 0x0400 uint8_t hb_interval; /* 0C */ uint8_t inst_num; /* 0D */ diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 199fa64..f9d81c8 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -476,6 +476,11 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE); + /* Set bit for "serialize task mgmt" all other bits need to be zero */ + init_fw_cb->add_fw_options = 0; + init_fw_cb->add_fw_options |= + __constant_cpu_to_le16(SERIALIZE_TASK_MGMT); + if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { DEBUG2(printk(KERN_WARNING -- cgit v0.10.2 From 2dcb0a61041a003f439bbd38005b6e454c368be0 Mon Sep 17 00:00:00 2001 From: Vikas Chaudhary Date: Mon, 21 Mar 2011 03:34:36 -0700 Subject: [SCSI] qla4xxx: Update driver version to 5.02.00-k6 Signed-off-by: Vikas Chaudhary Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h index 8475b30..6031557 100644 --- a/drivers/scsi/qla4xxx/ql4_version.h +++ b/drivers/scsi/qla4xxx/ql4_version.h @@ -5,4 +5,4 @@ * See LICENSE.qla4xxx for copyright and licensing details. */ -#define QLA4XXX_DRIVER_VERSION "5.02.00-k5" +#define QLA4XXX_DRIVER_VERSION "5.02.00-k6" -- cgit v0.10.2 From fee787129d4d6a5e967a69ea3dea3e38ba556b3d Mon Sep 17 00:00:00 2001 From: Bhanu Gollapudi Date: Mon, 21 Mar 2011 18:51:13 -0700 Subject: [SCSI] bnx2fc: IO completion not processed due to missed wakeup Driver does not detect a new CQE (completion queue entry) if a thread receives the wakup when it is in TASK_RUNNING state. Fix is to set the state to TASK_INTERRUPTIBLE while holding the fp_work_lock. Also, Use __set_current_task() since it is now set inside a spinlock with synchronization. Two other related optimizations: 1. After we exit the while (!kthread_should_stop()) loop, use __set_current_state() since synchronization is no longer needed. 2. Remove set_current_state(TASK_RUNNING) after schedule() since it should always be TASK_RUNNING after schedule(). Reviewed-by: Michael Chan Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 2056890..e2e6475 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -437,17 +437,16 @@ static int bnx2fc_l2_rcv_thread(void *arg) set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { schedule(); - set_current_state(TASK_RUNNING); spin_lock_bh(&bg->fcoe_rx_list.lock); while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) { spin_unlock_bh(&bg->fcoe_rx_list.lock); bnx2fc_recv_frame(skb); spin_lock_bh(&bg->fcoe_rx_list.lock); } + __set_current_state(TASK_INTERRUPTIBLE); spin_unlock_bh(&bg->fcoe_rx_list.lock); - set_current_state(TASK_INTERRUPTIBLE); } - set_current_state(TASK_RUNNING); + __set_current_state(TASK_RUNNING); return 0; } @@ -569,7 +568,6 @@ int bnx2fc_percpu_io_thread(void *arg) set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { schedule(); - set_current_state(TASK_RUNNING); spin_lock_bh(&p->fp_work_lock); while (!list_empty(&p->work_list)) { list_splice_init(&p->work_list, &work_list); @@ -583,10 +581,10 @@ int bnx2fc_percpu_io_thread(void *arg) spin_lock_bh(&p->fp_work_lock); } + __set_current_state(TASK_INTERRUPTIBLE); spin_unlock_bh(&p->fp_work_lock); - set_current_state(TASK_INTERRUPTIBLE); } - set_current_state(TASK_RUNNING); + __set_current_state(TASK_RUNNING); return 0; } -- cgit v0.10.2 From 3dea642afd9187728d119fce5c82a7ed9faa9b6a Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 23 Mar 2011 09:58:28 -0500 Subject: [SCSI] Revert "[SCSI] Retrieve the Caching mode page" This reverts commit 24d720b726c1a85f1962831ac30ad4d2ef8276b1. Previously we thought there was little possibility that devices would crash with this, but some have been found. Reported-by: Alan Stern Cc: Luben Tuikov Signed-off-by: James Bottomley diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 7ff61d7..b61ebec 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2027,14 +2027,10 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) int old_rcd = sdkp->RCD; int old_dpofua = sdkp->DPOFUA; - if (sdp->skip_ms_page_8) { - if (sdp->type == TYPE_RBC) - goto defaults; - else { - modepage = 0x3F; - dbd = 0; - } - } else if (sdp->type == TYPE_RBC) { + if (sdp->skip_ms_page_8) + goto defaults; + + if (sdp->type == TYPE_RBC) { modepage = 6; dbd = 8; } else { @@ -2062,11 +2058,13 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) */ if (len < 3) goto bad_sense; - else if (len > SD_BUF_SIZE) { - sd_printk(KERN_NOTICE, sdkp, "Truncating mode parameter " - "data from %d to %d bytes\n", len, SD_BUF_SIZE); - len = SD_BUF_SIZE; - } + if (len > 20) + len = 20; + + /* Take headers and block descriptors into account */ + len += data.header_length + data.block_descriptor_length; + if (len > SD_BUF_SIZE) + goto bad_sense; /* Get the data */ res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len, &data, &sshdr); @@ -2074,45 +2072,16 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) if (scsi_status_is_good(res)) { int offset = data.header_length + data.block_descriptor_length; - while (offset < len) { - u8 page_code = buffer[offset] & 0x3F; - u8 spf = buffer[offset] & 0x40; - - if (page_code == 8 || page_code == 6) { - /* We're interested only in the first 3 bytes. - */ - if (len - offset <= 2) { - sd_printk(KERN_ERR, sdkp, "Incomplete " - "mode parameter data\n"); - goto defaults; - } else { - modepage = page_code; - goto Page_found; - } - } else { - /* Go to the next page */ - if (spf && len - offset > 3) - offset += 4 + (buffer[offset+2] << 8) + - buffer[offset+3]; - else if (!spf && len - offset > 1) - offset += 2 + buffer[offset+1]; - else { - sd_printk(KERN_ERR, sdkp, "Incomplete " - "mode parameter data\n"); - goto defaults; - } - } + if (offset >= SD_BUF_SIZE - 2) { + sd_printk(KERN_ERR, sdkp, "Malformed MODE SENSE response\n"); + goto defaults; } - if (modepage == 0x3F) { - sd_printk(KERN_ERR, sdkp, "No Caching mode page " - "present\n"); - goto defaults; - } else if ((buffer[offset] & 0x3f) != modepage) { + if ((buffer[offset] & 0x3f) != modepage) { sd_printk(KERN_ERR, sdkp, "Got wrong page\n"); goto defaults; } - Page_found: + if (modepage == 8) { sdkp->WCE = ((buffer[offset + 2] & 0x04) != 0); sdkp->RCD = ((buffer[offset + 2] & 0x01) != 0); -- cgit v0.10.2 From 5fa8b573134108a333a317378998a9f1299c4dd6 Mon Sep 17 00:00:00 2001 From: Sarang Radke Date: Wed, 23 Mar 2011 08:07:33 -0700 Subject: [SCSI] qla4xxx: Use polling mode for disable interrupt mailbox completion Disable Interrupt MBX completion will disable the interrupt on successful completion. Fixed the bug where driver was waiting for Interrupt to come in for its completion. Now driver will poll for disable interrupt MBX completion. Signed-off-by: Sarang Radke Signed-off-by: Vikas Chaudhary Reviewed-by: Mike Christie Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c index 3d5ef2d..35381cb 100644 --- a/drivers/scsi/qla4xxx/ql4_nx.c +++ b/drivers/scsi/qla4xxx/ql4_nx.c @@ -2304,14 +2304,13 @@ qla4_8xxx_enable_intrs(struct scsi_qla_host *ha) void qla4_8xxx_disable_intrs(struct scsi_qla_host *ha) { - if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) + if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags)) qla4_8xxx_mbx_intr_disable(ha); spin_lock_irq(&ha->hardware_lock); /* BIT 10 - set */ qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400); spin_unlock_irq(&ha->hardware_lock); - clear_bit(AF_INTERRUPTS_ON, &ha->flags); } struct ql4_init_msix_entry { -- cgit v0.10.2 From 3703b2c5d041a68095cdd22380c23ce27d449ad7 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 18 Mar 2011 15:39:17 -0700 Subject: [SCSI] tcm_loop: Add multi-fabric Linux/SCSI LLD fabric module This patch adds the TCM_Loop Linux/SCSI LLD fabric module for accessing TCM device backstores as locally accessable SCSI LUNs in virtual SAS, FC, and iSCSI Target ports using the generic fabric TransportID and Target Port WWN naming handlers from TCM's target_core_fabric_lib.c The TCM_Loop module uses the generic fabric configfs infratructure provided by target_core_fabric_configfs.c and adds a module dependent attribute for the creation/release of the virtual I_T Nexus connected the TCM_Loop Target and Initiator Ports. TCM_Loop can also be used with scsi-generic and BSG drivers so that STGT userspace fabric modules, QEMU-KVM and other hypervisor SCSI passthrough support can access TCM device backstore and control CDB emulation. For more information please see: http://linux-iscsi.org/wiki/Tcm_loop [jejb: fixed up checkpatch stuff] Signed-off-by: Nicholas A. Bellinger Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig index 2fac3be..9ef2dbb 100644 --- a/drivers/target/Kconfig +++ b/drivers/target/Kconfig @@ -29,4 +29,6 @@ config TCM_PSCSI Say Y here to enable the TCM/pSCSI subsystem plugin for non-buffered passthrough access to Linux/SCSI device +source "drivers/target/loopback/Kconfig" + endif diff --git a/drivers/target/Makefile b/drivers/target/Makefile index 4f3cb78..1178bbf 100644 --- a/drivers/target/Makefile +++ b/drivers/target/Makefile @@ -21,3 +21,6 @@ obj-$(CONFIG_TARGET_CORE) += target_core_mod.o obj-$(CONFIG_TCM_IBLOCK) += target_core_iblock.o obj-$(CONFIG_TCM_FILEIO) += target_core_file.o obj-$(CONFIG_TCM_PSCSI) += target_core_pscsi.o + +# Fabric modules +obj-$(CONFIG_LOOPBACK_TARGET) += loopback/ diff --git a/drivers/target/loopback/Kconfig b/drivers/target/loopback/Kconfig new file mode 100644 index 0000000..57dcbc2 --- /dev/null +++ b/drivers/target/loopback/Kconfig @@ -0,0 +1,11 @@ +config LOOPBACK_TARGET + tristate "TCM Virtual SAS target and Linux/SCSI LDD fabric loopback module" + help + Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD + fabric loopback module. + +config LOOPBACK_TARGET_CDB_DEBUG + bool "TCM loopback fabric module CDB debug code" + depends on LOOPBACK_TARGET + help + Say Y here to enable the TCM loopback fabric module CDB debug code diff --git a/drivers/target/loopback/Makefile b/drivers/target/loopback/Makefile new file mode 100644 index 0000000..6abebdf --- /dev/null +++ b/drivers/target/loopback/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_LOOPBACK_TARGET) += tcm_loop.o diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c new file mode 100644 index 0000000..aed4e46 --- /dev/null +++ b/drivers/target/loopback/tcm_loop.c @@ -0,0 +1,1579 @@ +/******************************************************************************* + * + * This file contains the Linux/SCSI LLD virtual SCSI initiator driver + * for emulated SAS initiator ports + * + * © Copyright 2011 RisingTide Systems LLC. + * + * Licensed to the Linux Foundation under the General Public License (GPL) version 2. + * + * Author: Nicholas A. Bellinger + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + ****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include /* For TASK_ATTR_* */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tcm_loop.h" + +#define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev) + +/* Local pointer to allocated TCM configfs fabric module */ +static struct target_fabric_configfs *tcm_loop_fabric_configfs; + +static struct kmem_cache *tcm_loop_cmd_cache; + +static int tcm_loop_hba_no_cnt; + +/* + * Allocate a tcm_loop cmd descriptor from target_core_mod code + * + * Can be called from interrupt context in tcm_loop_queuecommand() below + */ +static struct se_cmd *tcm_loop_allocate_core_cmd( + struct tcm_loop_hba *tl_hba, + struct se_portal_group *se_tpg, + struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd; + struct se_session *se_sess; + struct tcm_loop_nexus *tl_nexus = tl_hba->tl_nexus; + struct tcm_loop_cmd *tl_cmd; + int sam_task_attr; + + if (!tl_nexus) { + scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus" + " does not exist\n"); + set_host_byte(sc, DID_ERROR); + return NULL; + } + se_sess = tl_nexus->se_sess; + + tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_ATOMIC); + if (!tl_cmd) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_cmd\n"); + set_host_byte(sc, DID_ERROR); + return NULL; + } + se_cmd = &tl_cmd->tl_se_cmd; + /* + * Save the pointer to struct scsi_cmnd *sc + */ + tl_cmd->sc = sc; + /* + * Locate the SAM Task Attr from struct scsi_cmnd * + */ + if (sc->device->tagged_supported) { + switch (sc->tag) { + case HEAD_OF_QUEUE_TAG: + sam_task_attr = TASK_ATTR_HOQ; + break; + case ORDERED_QUEUE_TAG: + sam_task_attr = TASK_ATTR_ORDERED; + break; + default: + sam_task_attr = TASK_ATTR_SIMPLE; + break; + } + } else + sam_task_attr = TASK_ATTR_SIMPLE; + + /* + * Initialize struct se_cmd descriptor from target_core_mod infrastructure + */ + transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, + scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr, + &tl_cmd->tl_sense_buf[0]); + + /* + * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi + */ + if (scsi_bidi_cmnd(sc)) + T_TASK(se_cmd)->t_tasks_bidi = 1; + /* + * Locate the struct se_lun pointer and attach it to struct se_cmd + */ + if (transport_get_lun_for_cmd(se_cmd, NULL, tl_cmd->sc->device->lun) < 0) { + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); + set_host_byte(sc, DID_NO_CONNECT); + return NULL; + } + + transport_device_setup_cmd(se_cmd); + return se_cmd; +} + +/* + * Called by struct target_core_fabric_ops->new_cmd_map() + * + * Always called in process context. A non zero return value + * here will signal to handle an exception based on the return code. + */ +static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + void *mem_ptr, *mem_bidi_ptr = NULL; + u32 sg_no_bidi = 0; + int ret; + /* + * Allocate the necessary tasks to complete the received CDB+data + */ + ret = transport_generic_allocate_tasks(se_cmd, tl_cmd->sc->cmnd); + if (ret == -1) { + /* Out of Resources */ + return PYX_TRANSPORT_LU_COMM_FAILURE; + } else if (ret == -2) { + /* + * Handle case for SAM_STAT_RESERVATION_CONFLICT + */ + if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT) + return PYX_TRANSPORT_RESERVATION_CONFLICT; + /* + * Otherwise, return SAM_STAT_CHECK_CONDITION and return + * sense data. + */ + return PYX_TRANSPORT_USE_SENSE_REASON; + } + /* + * Setup the struct scatterlist memory from the received + * struct scsi_cmnd. + */ + if (scsi_sg_count(sc)) { + se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM; + mem_ptr = (void *)scsi_sglist(sc); + /* + * For BIDI commands, pass in the extra READ buffer + * to transport_generic_map_mem_to_cmd() below.. + */ + if (T_TASK(se_cmd)->t_tasks_bidi) { + struct scsi_data_buffer *sdb = scsi_in(sc); + + mem_bidi_ptr = (void *)sdb->table.sgl; + sg_no_bidi = sdb->table.nents; + } + } else { + /* + * Used for DMA_NONE + */ + mem_ptr = NULL; + } + /* + * Map the SG memory into struct se_mem->page linked list using the same + * physical memory at sg->page_link. + */ + ret = transport_generic_map_mem_to_cmd(se_cmd, mem_ptr, + scsi_sg_count(sc), mem_bidi_ptr, sg_no_bidi); + if (ret < 0) + return PYX_TRANSPORT_LU_COMM_FAILURE; + + return 0; +} + +/* + * Called from struct target_core_fabric_ops->check_stop_free() + */ +static void tcm_loop_check_stop_free(struct se_cmd *se_cmd) +{ + /* + * Do not release struct se_cmd's containing a valid TMR + * pointer. These will be released directly in tcm_loop_device_reset() + * with transport_generic_free_cmd(). + */ + if (se_cmd->se_tmr_req) + return; + /* + * Release the struct se_cmd, which will make a callback to release + * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd() + */ + transport_generic_free_cmd(se_cmd, 0, 1, 0); +} + +/* + * Called from struct target_core_fabric_ops->release_cmd_to_pool() + */ +static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); +} + +static int tcm_loop_proc_info(struct Scsi_Host *host, char *buffer, + char **start, off_t offset, + int length, int inout) +{ + return sprintf(buffer, "tcm_loop_proc_info()\n"); +} + +static int tcm_loop_driver_probe(struct device *); +static int tcm_loop_driver_remove(struct device *); + +static int pseudo_lld_bus_match(struct device *dev, + struct device_driver *dev_driver) +{ + return 1; +} + +static struct bus_type tcm_loop_lld_bus = { + .name = "tcm_loop_bus", + .match = pseudo_lld_bus_match, + .probe = tcm_loop_driver_probe, + .remove = tcm_loop_driver_remove, +}; + +static struct device_driver tcm_loop_driverfs = { + .name = "tcm_loop", + .bus = &tcm_loop_lld_bus, +}; +/* + * Used with root_device_register() in tcm_loop_alloc_core_bus() below + */ +struct device *tcm_loop_primary; + +/* + * Copied from drivers/scsi/libfc/fc_fcp.c:fc_change_queue_depth() and + * drivers/scsi/libiscsi.c:iscsi_change_queue_depth() + */ +static int tcm_loop_change_queue_depth( + struct scsi_device *sdev, + int depth, + int reason) +{ + switch (reason) { + case SCSI_QDEPTH_DEFAULT: + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + break; + case SCSI_QDEPTH_QFULL: + scsi_track_queue_full(sdev, depth); + break; + case SCSI_QDEPTH_RAMP_UP: + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth); + break; + default: + return -EOPNOTSUPP; + } + return sdev->queue_depth; +} + +/* + * Main entry point from struct scsi_host_template for incoming SCSI CDB+Data + * from Linux/SCSI subsystem for SCSI low level device drivers (LLDs) + */ +static int tcm_loop_queuecommand( + struct Scsi_Host *sh, + struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd; + struct se_portal_group *se_tpg; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_tpg *tl_tpg; + + TL_CDB_DEBUG("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x" + " scsi_buf_len: %u\n", sc->device->host->host_no, + sc->device->id, sc->device->channel, sc->device->lun, + sc->cmnd[0], scsi_bufflen(sc)); + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + se_tpg = &tl_tpg->tl_se_tpg; + /* + * Determine the SAM Task Attribute and allocate tl_cmd and + * tl_cmd->tl_se_cmd from TCM infrastructure + */ + se_cmd = tcm_loop_allocate_core_cmd(tl_hba, se_tpg, sc); + if (!se_cmd) { + sc->scsi_done(sc); + return 0; + } + /* + * Queue up the newly allocated to be processed in TCM thread context. + */ + transport_generic_handle_cdb_map(se_cmd); + return 0; +} + +/* + * Called from SCSI EH process context to issue a LUN_RESET TMR + * to struct scsi_device + */ +static int tcm_loop_device_reset(struct scsi_cmnd *sc) +{ + struct se_cmd *se_cmd = NULL; + struct se_portal_group *se_tpg; + struct se_session *se_sess; + struct tcm_loop_cmd *tl_cmd = NULL; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_tmr *tl_tmr = NULL; + struct tcm_loop_tpg *tl_tpg; + int ret = FAILED; + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + /* + * Locate the tl_nexus and se_sess pointers + */ + tl_nexus = tl_hba->tl_nexus; + if (!tl_nexus) { + printk(KERN_ERR "Unable to perform device reset without" + " active I_T Nexus\n"); + return FAILED; + } + se_sess = tl_nexus->se_sess; + /* + * Locate the tl_tpg and se_tpg pointers from TargetID in sc->device->id + */ + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + se_tpg = &tl_tpg->tl_se_tpg; + + tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL); + if (!tl_cmd) { + printk(KERN_ERR "Unable to allocate memory for tl_cmd\n"); + return FAILED; + } + + tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL); + if (!tl_tmr) { + printk(KERN_ERR "Unable to allocate memory for tl_tmr\n"); + goto release; + } + init_waitqueue_head(&tl_tmr->tl_tmr_wait); + + se_cmd = &tl_cmd->tl_se_cmd; + /* + * Initialize struct se_cmd descriptor from target_core_mod infrastructure + */ + transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, 0, + DMA_NONE, TASK_ATTR_SIMPLE, + &tl_cmd->tl_sense_buf[0]); + /* + * Allocate the LUN_RESET TMR + */ + se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, (void *)tl_tmr, + TMR_LUN_RESET); + if (!se_cmd->se_tmr_req) + goto release; + /* + * Locate the underlying TCM struct se_lun from sc->device->lun + */ + if (transport_get_lun_for_tmr(se_cmd, sc->device->lun) < 0) + goto release; + /* + * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp() + * to wake us up. + */ + transport_generic_handle_tmr(se_cmd); + wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete)); + /* + * The TMR LUN_RESET has completed, check the response status and + * then release allocations. + */ + ret = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ? + SUCCESS : FAILED; +release: + if (se_cmd) + transport_generic_free_cmd(se_cmd, 1, 1, 0); + else + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); + kfree(tl_tmr); + return ret; +} + +static int tcm_loop_slave_alloc(struct scsi_device *sd) +{ + set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags); + return 0; +} + +static int tcm_loop_slave_configure(struct scsi_device *sd) +{ + return 0; +} + +static struct scsi_host_template tcm_loop_driver_template = { + .proc_info = tcm_loop_proc_info, + .proc_name = "tcm_loopback", + .name = "TCM_Loopback", + .queuecommand = tcm_loop_queuecommand, + .change_queue_depth = tcm_loop_change_queue_depth, + .eh_device_reset_handler = tcm_loop_device_reset, + .can_queue = TL_SCSI_CAN_QUEUE, + .this_id = -1, + .sg_tablesize = TL_SCSI_SG_TABLESIZE, + .cmd_per_lun = TL_SCSI_CMD_PER_LUN, + .max_sectors = TL_SCSI_MAX_SECTORS, + .use_clustering = DISABLE_CLUSTERING, + .slave_alloc = tcm_loop_slave_alloc, + .slave_configure = tcm_loop_slave_configure, + .module = THIS_MODULE, +}; + +static int tcm_loop_driver_probe(struct device *dev) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + int error; + + tl_hba = to_tcm_loop_hba(dev); + + sh = scsi_host_alloc(&tcm_loop_driver_template, + sizeof(struct tcm_loop_hba)); + if (!sh) { + printk(KERN_ERR "Unable to allocate struct scsi_host\n"); + return -ENODEV; + } + tl_hba->sh = sh; + + /* + * Assign the struct tcm_loop_hba pointer to struct Scsi_Host->hostdata + */ + *((struct tcm_loop_hba **)sh->hostdata) = tl_hba; + /* + * Setup single ID, Channel and LUN for now.. + */ + sh->max_id = 2; + sh->max_lun = 0; + sh->max_channel = 0; + sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN; + + error = scsi_add_host(sh, &tl_hba->dev); + if (error) { + printk(KERN_ERR "%s: scsi_add_host failed\n", __func__); + scsi_host_put(sh); + return -ENODEV; + } + return 0; +} + +static int tcm_loop_driver_remove(struct device *dev) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + + tl_hba = to_tcm_loop_hba(dev); + sh = tl_hba->sh; + + scsi_remove_host(sh); + scsi_host_put(sh); + return 0; +} + +static void tcm_loop_release_adapter(struct device *dev) +{ + struct tcm_loop_hba *tl_hba = to_tcm_loop_hba(dev); + + kfree(tl_hba); +} + +/* + * Called from tcm_loop_make_scsi_hba() in tcm_loop_configfs.c + */ +static int tcm_loop_setup_hba_bus(struct tcm_loop_hba *tl_hba, int tcm_loop_host_id) +{ + int ret; + + tl_hba->dev.bus = &tcm_loop_lld_bus; + tl_hba->dev.parent = tcm_loop_primary; + tl_hba->dev.release = &tcm_loop_release_adapter; + dev_set_name(&tl_hba->dev, "tcm_loop_adapter_%d", tcm_loop_host_id); + + ret = device_register(&tl_hba->dev); + if (ret) { + printk(KERN_ERR "device_register() failed for" + " tl_hba->dev: %d\n", ret); + return -ENODEV; + } + + return 0; +} + +/* + * Called from tcm_loop_fabric_init() in tcl_loop_fabric.c to load the emulated + * tcm_loop SCSI bus. + */ +static int tcm_loop_alloc_core_bus(void) +{ + int ret; + + tcm_loop_primary = root_device_register("tcm_loop_0"); + if (IS_ERR(tcm_loop_primary)) { + printk(KERN_ERR "Unable to allocate tcm_loop_primary\n"); + return PTR_ERR(tcm_loop_primary); + } + + ret = bus_register(&tcm_loop_lld_bus); + if (ret) { + printk(KERN_ERR "bus_register() failed for tcm_loop_lld_bus\n"); + goto dev_unreg; + } + + ret = driver_register(&tcm_loop_driverfs); + if (ret) { + printk(KERN_ERR "driver_register() failed for" + "tcm_loop_driverfs\n"); + goto bus_unreg; + } + + printk(KERN_INFO "Initialized TCM Loop Core Bus\n"); + return ret; + +bus_unreg: + bus_unregister(&tcm_loop_lld_bus); +dev_unreg: + root_device_unregister(tcm_loop_primary); + return ret; +} + +static void tcm_loop_release_core_bus(void) +{ + driver_unregister(&tcm_loop_driverfs); + bus_unregister(&tcm_loop_lld_bus); + root_device_unregister(tcm_loop_primary); + + printk(KERN_INFO "Releasing TCM Loop Core BUS\n"); +} + +static char *tcm_loop_get_fabric_name(void) +{ + return "loopback"; +} + +static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + /* + * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba() + * time based on the protocol dependent prefix of the passed configfs group. + * + * Based upon tl_proto_id, TCM_Loop emulates the requested fabric + * ProtocolID using target_core_fabric_lib.c symbols. + */ + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_fabric_proto_ident(se_tpg); + case SCSI_PROTOCOL_FCP: + return fc_get_fabric_proto_ident(se_tpg); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_fabric_proto_ident(se_tpg); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_fabric_proto_ident(se_tpg); +} + +static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + /* + * Return the passed NAA identifier for the SAS Target Port + */ + return &tl_tpg->tl_hba->tl_wwn_address[0]; +} + +static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + /* + * This Tag is used when forming SCSI Name identifier in EVPD=1 0x83 + * to represent the SCSI Target Port. + */ + return tl_tpg->tl_tpgt; +} + +static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg) +{ + return 1; +} + +static u32 tcm_loop_get_pr_transport_id( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl, + struct t10_pr_registration *pr_reg, + int *format_code, + unsigned char *buf) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + case SCSI_PROTOCOL_FCP: + return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg, + format_code, buf); +} + +static u32 tcm_loop_get_pr_transport_id_len( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl, + struct t10_pr_registration *pr_reg, + int *format_code) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + case SCSI_PROTOCOL_FCP: + return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + case SCSI_PROTOCOL_ISCSI: + return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg, + format_code); +} + +/* + * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above + * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations. + */ +static char *tcm_loop_parse_pr_out_transport_id( + struct se_portal_group *se_tpg, + const char *buf, + u32 *out_tid_len, + char **port_nexus_ptr) +{ + struct tcm_loop_tpg *tl_tpg = + (struct tcm_loop_tpg *)se_tpg->se_tpg_fabric_ptr; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + case SCSI_PROTOCOL_FCP: + return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + case SCSI_PROTOCOL_ISCSI: + return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); + default: + printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using" + " SAS emulation\n", tl_hba->tl_proto_id); + break; + } + + return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len, + port_nexus_ptr); +} + +/* + * Returning (1) here allows for target_core_mod struct se_node_acl to be generated + * based upon the incoming fabric dependent SCSI Initiator Port + */ +static int tcm_loop_check_demo_mode(struct se_portal_group *se_tpg) +{ + return 1; +} + +static int tcm_loop_check_demo_mode_cache(struct se_portal_group *se_tpg) +{ + return 0; +} + +/* + * Allow I_T Nexus full READ-WRITE access without explict Initiator Node ACLs for + * local virtual Linux/SCSI LLD passthrough into VM hypervisor guest + */ +static int tcm_loop_check_demo_mode_write_protect(struct se_portal_group *se_tpg) +{ + return 0; +} + +/* + * Because TCM_Loop does not use explict ACLs and MappedLUNs, this will + * never be called for TCM_Loop by target_core_fabric_configfs.c code. + * It has been added here as a nop for target_fabric_tf_ops_check() + */ +static int tcm_loop_check_prod_mode_write_protect(struct se_portal_group *se_tpg) +{ + return 0; +} + +static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl( + struct se_portal_group *se_tpg) +{ + struct tcm_loop_nacl *tl_nacl; + + tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL); + if (!tl_nacl) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_nacl\n"); + return NULL; + } + + return &tl_nacl->se_node_acl; +} + +static void tcm_loop_tpg_release_fabric_acl( + struct se_portal_group *se_tpg, + struct se_node_acl *se_nacl) +{ + struct tcm_loop_nacl *tl_nacl = container_of(se_nacl, + struct tcm_loop_nacl, se_node_acl); + + kfree(tl_nacl); +} + +static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg) +{ + return 1; +} + +static void tcm_loop_new_cmd_failure(struct se_cmd *se_cmd) +{ + /* + * Since TCM_loop is already passing struct scatterlist data from + * struct scsi_cmnd, no more Linux/SCSI failure dependent state need + * to be handled here. + */ + return; +} + +static int tcm_loop_is_state_remove(struct se_cmd *se_cmd) +{ + /* + * Assume struct scsi_cmnd is not in remove state.. + */ + return 0; +} + +static int tcm_loop_sess_logged_in(struct se_session *se_sess) +{ + /* + * Assume that TL Nexus is always active + */ + return 1; +} + +static u32 tcm_loop_sess_get_index(struct se_session *se_sess) +{ + return 1; +} + +static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl) +{ + return; +} + +static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd) +{ + return 1; +} + +static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + + return tl_cmd->sc_cmd_state; +} + +static int tcm_loop_shutdown_session(struct se_session *se_sess) +{ + return 0; +} + +static void tcm_loop_close_session(struct se_session *se_sess) +{ + return; +}; + +static void tcm_loop_stop_session( + struct se_session *se_sess, + int sess_sleep, + int conn_sleep) +{ + return; +} + +static void tcm_loop_fall_back_to_erl0(struct se_session *se_sess) +{ + return; +} + +static int tcm_loop_write_pending(struct se_cmd *se_cmd) +{ + /* + * Since Linux/SCSI has already sent down a struct scsi_cmnd + * sc->sc_data_direction of DMA_TO_DEVICE with struct scatterlist array + * memory, and memory has already been mapped to struct se_cmd->t_mem_list + * format with transport_generic_map_mem_to_cmd(). + * + * We now tell TCM to add this WRITE CDB directly into the TCM storage + * object execution queue. + */ + transport_generic_process_write(se_cmd); + return 0; +} + +static int tcm_loop_write_pending_status(struct se_cmd *se_cmd) +{ + return 0; +} + +static int tcm_loop_queue_data_in(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + + TL_CDB_DEBUG("tcm_loop_queue_data_in() called for scsi_cmnd: %p" + " cdb: 0x%02x\n", sc, sc->cmnd[0]); + + sc->result = SAM_STAT_GOOD; + set_host_byte(sc, DID_OK); + sc->scsi_done(sc); + return 0; +} + +static int tcm_loop_queue_status(struct se_cmd *se_cmd) +{ + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + struct scsi_cmnd *sc = tl_cmd->sc; + + TL_CDB_DEBUG("tcm_loop_queue_status() called for scsi_cmnd: %p" + " cdb: 0x%02x\n", sc, sc->cmnd[0]); + + if (se_cmd->sense_buffer && + ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) || + (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) { + + memcpy((void *)sc->sense_buffer, (void *)se_cmd->sense_buffer, + SCSI_SENSE_BUFFERSIZE); + sc->result = SAM_STAT_CHECK_CONDITION; + set_driver_byte(sc, DRIVER_SENSE); + } else + sc->result = se_cmd->scsi_status; + + set_host_byte(sc, DID_OK); + sc->scsi_done(sc); + return 0; +} + +static int tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd) +{ + struct se_tmr_req *se_tmr = se_cmd->se_tmr_req; + struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr; + /* + * The SCSI EH thread will be sleeping on se_tmr->tl_tmr_wait, go ahead + * and wake up the wait_queue_head_t in tcm_loop_device_reset() + */ + atomic_set(&tl_tmr->tmr_complete, 1); + wake_up(&tl_tmr->tl_tmr_wait); + return 0; +} + +static u16 tcm_loop_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length) +{ + return 0; +} + +static u16 tcm_loop_get_fabric_sense_len(void) +{ + return 0; +} + +static u64 tcm_loop_pack_lun(unsigned int lun) +{ + u64 result; + + /* LSB of lun into byte 1 big-endian */ + result = ((lun & 0xff) << 8); + /* use flat space addressing method */ + result |= 0x40 | ((lun >> 8) & 0x3f); + + return cpu_to_le64(result); +} + +static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba) +{ + switch (tl_hba->tl_proto_id) { + case SCSI_PROTOCOL_SAS: + return "SAS"; + case SCSI_PROTOCOL_FCP: + return "FCP"; + case SCSI_PROTOCOL_ISCSI: + return "iSCSI"; + default: + break; + } + + return "Unknown"; +} + +/* Start items for tcm_loop_port_cit */ + +static int tcm_loop_port_link( + struct se_portal_group *se_tpg, + struct se_lun *lun) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + + atomic_inc(&tl_tpg->tl_tpg_port_count); + smp_mb__after_atomic_inc(); + /* + * Add Linux/SCSI struct scsi_device by HCTL + */ + scsi_add_device(tl_hba->sh, 0, tl_tpg->tl_tpgt, lun->unpacked_lun); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Port Link Successful\n"); + return 0; +} + +static void tcm_loop_port_unlink( + struct se_portal_group *se_tpg, + struct se_lun *se_lun) +{ + struct scsi_device *sd; + struct tcm_loop_hba *tl_hba; + struct tcm_loop_tpg *tl_tpg; + + tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); + tl_hba = tl_tpg->tl_hba; + + sd = scsi_device_lookup(tl_hba->sh, 0, tl_tpg->tl_tpgt, + se_lun->unpacked_lun); + if (!sd) { + printk(KERN_ERR "Unable to locate struct scsi_device for %d:%d:" + "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun); + return; + } + /* + * Remove Linux/SCSI struct scsi_device by HCTL + */ + scsi_remove_device(sd); + scsi_device_put(sd); + + atomic_dec(&tl_tpg->tl_tpg_port_count); + smp_mb__after_atomic_dec(); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Port Unlink Successful\n"); +} + +/* End items for tcm_loop_port_cit */ + +/* Start items for tcm_loop_nexus_cit */ + +static int tcm_loop_make_nexus( + struct tcm_loop_tpg *tl_tpg, + const char *name) +{ + struct se_portal_group *se_tpg; + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + struct tcm_loop_nexus *tl_nexus; + + if (tl_tpg->tl_hba->tl_nexus) { + printk(KERN_INFO "tl_tpg->tl_hba->tl_nexus already exists\n"); + return -EEXIST; + } + se_tpg = &tl_tpg->tl_se_tpg; + + tl_nexus = kzalloc(sizeof(struct tcm_loop_nexus), GFP_KERNEL); + if (!tl_nexus) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_nexus\n"); + return -ENOMEM; + } + /* + * Initialize the struct se_session pointer + */ + tl_nexus->se_sess = transport_init_session(); + if (!tl_nexus->se_sess) + goto out; + /* + * Since we are running in 'demo mode' this call with generate a + * struct se_node_acl for the tcm_loop struct se_portal_group with the SCSI + * Initiator port name of the passed configfs group 'name'. + */ + tl_nexus->se_sess->se_node_acl = core_tpg_check_initiator_node_acl( + se_tpg, (unsigned char *)name); + if (!tl_nexus->se_sess->se_node_acl) { + transport_free_session(tl_nexus->se_sess); + goto out; + } + /* + * Now, register the SAS I_T Nexus as active with the call to + * transport_register_session() + */ + __transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, + tl_nexus->se_sess, (void *)tl_nexus); + tl_tpg->tl_hba->tl_nexus = tl_nexus; + printk(KERN_INFO "TCM_Loop_ConfigFS: Established I_T Nexus to emulated" + " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba), + name); + return 0; + +out: + kfree(tl_nexus); + return -ENOMEM; +} + +static int tcm_loop_drop_nexus( + struct tcm_loop_tpg *tpg) +{ + struct se_session *se_sess; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_hba *tl_hba = tpg->tl_hba; + + tl_nexus = tpg->tl_hba->tl_nexus; + if (!tl_nexus) + return -ENODEV; + + se_sess = tl_nexus->se_sess; + if (!se_sess) + return -ENODEV; + + if (atomic_read(&tpg->tl_tpg_port_count)) { + printk(KERN_ERR "Unable to remove TCM_Loop I_T Nexus with" + " active TPG port count: %d\n", + atomic_read(&tpg->tl_tpg_port_count)); + return -EPERM; + } + + printk(KERN_INFO "TCM_Loop_ConfigFS: Removing I_T Nexus to emulated" + " %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba), + tl_nexus->se_sess->se_node_acl->initiatorname); + /* + * Release the SCSI I_T Nexus to the emulated SAS Target Port + */ + transport_deregister_session(tl_nexus->se_sess); + tpg->tl_hba->tl_nexus = NULL; + kfree(tl_nexus); + return 0; +} + +/* End items for tcm_loop_nexus_cit */ + +static ssize_t tcm_loop_tpg_show_nexus( + struct se_portal_group *se_tpg, + char *page) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_nexus *tl_nexus; + ssize_t ret; + + tl_nexus = tl_tpg->tl_hba->tl_nexus; + if (!tl_nexus) + return -ENODEV; + + ret = snprintf(page, PAGE_SIZE, "%s\n", + tl_nexus->se_sess->se_node_acl->initiatorname); + + return ret; +} + +static ssize_t tcm_loop_tpg_store_nexus( + struct se_portal_group *se_tpg, + const char *page, + size_t count) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; + unsigned char i_port[TL_WWN_ADDR_LEN], *ptr, *port_ptr; + int ret; + /* + * Shutdown the active I_T nexus if 'NULL' is passed.. + */ + if (!strncmp(page, "NULL", 4)) { + ret = tcm_loop_drop_nexus(tl_tpg); + return (!ret) ? count : ret; + } + /* + * Otherwise make sure the passed virtual Initiator port WWN matches + * the fabric protocol_id set in tcm_loop_make_scsi_hba(), and call + * tcm_loop_make_nexus() + */ + if (strlen(page) > TL_WWN_ADDR_LEN) { + printk(KERN_ERR "Emulated NAA Sas Address: %s, exceeds" + " max: %d\n", page, TL_WWN_ADDR_LEN); + return -EINVAL; + } + snprintf(&i_port[0], TL_WWN_ADDR_LEN, "%s", page); + + ptr = strstr(i_port, "naa."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_SAS) { + printk(KERN_ERR "Passed SAS Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[0]; + goto check_newline; + } + ptr = strstr(i_port, "fc."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_FCP) { + printk(KERN_ERR "Passed FCP Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[3]; /* Skip over "fc." */ + goto check_newline; + } + ptr = strstr(i_port, "iqn."); + if (ptr) { + if (tl_hba->tl_proto_id != SCSI_PROTOCOL_ISCSI) { + printk(KERN_ERR "Passed iSCSI Initiator Port %s does not" + " match target port protoid: %s\n", i_port, + tcm_loop_dump_proto_id(tl_hba)); + return -EINVAL; + } + port_ptr = &i_port[0]; + goto check_newline; + } + printk(KERN_ERR "Unable to locate prefix for emulated Initiator Port:" + " %s\n", i_port); + return -EINVAL; + /* + * Clear any trailing newline for the NAA WWN + */ +check_newline: + if (i_port[strlen(i_port)-1] == '\n') + i_port[strlen(i_port)-1] = '\0'; + + ret = tcm_loop_make_nexus(tl_tpg, port_ptr); + if (ret < 0) + return ret; + + return count; +} + +TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR); + +static struct configfs_attribute *tcm_loop_tpg_attrs[] = { + &tcm_loop_tpg_nexus.attr, + NULL, +}; + +/* Start items for tcm_loop_naa_cit */ + +struct se_portal_group *tcm_loop_make_naa_tpg( + struct se_wwn *wwn, + struct config_group *group, + const char *name) +{ + struct tcm_loop_hba *tl_hba = container_of(wwn, + struct tcm_loop_hba, tl_hba_wwn); + struct tcm_loop_tpg *tl_tpg; + char *tpgt_str, *end_ptr; + int ret; + unsigned short int tpgt; + + tpgt_str = strstr(name, "tpgt_"); + if (!tpgt_str) { + printk(KERN_ERR "Unable to locate \"tpgt_#\" directory" + " group\n"); + return ERR_PTR(-EINVAL); + } + tpgt_str += 5; /* Skip ahead of "tpgt_" */ + tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0); + + if (tpgt > TL_TPGS_PER_HBA) { + printk(KERN_ERR "Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:" + " %u\n", tpgt, TL_TPGS_PER_HBA); + return ERR_PTR(-EINVAL); + } + tl_tpg = &tl_hba->tl_hba_tpgs[tpgt]; + tl_tpg->tl_hba = tl_hba; + tl_tpg->tl_tpgt = tpgt; + /* + * Register the tl_tpg as a emulated SAS TCM Target Endpoint + */ + ret = core_tpg_register(&tcm_loop_fabric_configfs->tf_ops, + wwn, &tl_tpg->tl_se_tpg, (void *)tl_tpg, + TRANSPORT_TPG_TYPE_NORMAL); + if (ret < 0) + return ERR_PTR(-ENOMEM); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated Emulated %s" + " Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba), + config_item_name(&wwn->wwn_group.cg_item), tpgt); + + return &tl_tpg->tl_se_tpg; +} + +void tcm_loop_drop_naa_tpg( + struct se_portal_group *se_tpg) +{ + struct se_wwn *wwn = se_tpg->se_tpg_wwn; + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + struct tcm_loop_hba *tl_hba; + unsigned short tpgt; + + tl_hba = tl_tpg->tl_hba; + tpgt = tl_tpg->tl_tpgt; + /* + * Release the I_T Nexus for the Virtual SAS link if present + */ + tcm_loop_drop_nexus(tl_tpg); + /* + * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint + */ + core_tpg_deregister(se_tpg); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated Emulated %s" + " Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba), + config_item_name(&wwn->wwn_group.cg_item), tpgt); +} + +/* End items for tcm_loop_naa_cit */ + +/* Start items for tcm_loop_cit */ + +struct se_wwn *tcm_loop_make_scsi_hba( + struct target_fabric_configfs *tf, + struct config_group *group, + const char *name) +{ + struct tcm_loop_hba *tl_hba; + struct Scsi_Host *sh; + char *ptr; + int ret, off = 0; + + tl_hba = kzalloc(sizeof(struct tcm_loop_hba), GFP_KERNEL); + if (!tl_hba) { + printk(KERN_ERR "Unable to allocate struct tcm_loop_hba\n"); + return ERR_PTR(-ENOMEM); + } + /* + * Determine the emulated Protocol Identifier and Target Port Name + * based on the incoming configfs directory name. + */ + ptr = strstr(name, "naa."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_SAS; + goto check_len; + } + ptr = strstr(name, "fc."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_FCP; + off = 3; /* Skip over "fc." */ + goto check_len; + } + ptr = strstr(name, "iqn."); + if (ptr) { + tl_hba->tl_proto_id = SCSI_PROTOCOL_ISCSI; + goto check_len; + } + + printk(KERN_ERR "Unable to locate prefix for emulated Target Port:" + " %s\n", name); + return ERR_PTR(-EINVAL); + +check_len: + if (strlen(name) > TL_WWN_ADDR_LEN) { + printk(KERN_ERR "Emulated NAA %s Address: %s, exceeds" + " max: %d\n", name, tcm_loop_dump_proto_id(tl_hba), + TL_WWN_ADDR_LEN); + kfree(tl_hba); + return ERR_PTR(-EINVAL); + } + snprintf(&tl_hba->tl_wwn_address[0], TL_WWN_ADDR_LEN, "%s", &name[off]); + + /* + * Call device_register(tl_hba->dev) to register the emulated + * Linux/SCSI LLD of type struct Scsi_Host at tl_hba->sh after + * device_register() callbacks in tcm_loop_driver_probe() + */ + ret = tcm_loop_setup_hba_bus(tl_hba, tcm_loop_hba_no_cnt); + if (ret) + goto out; + + sh = tl_hba->sh; + tcm_loop_hba_no_cnt++; + printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated emulated Target" + " %s Address: %s at Linux/SCSI Host ID: %d\n", + tcm_loop_dump_proto_id(tl_hba), name, sh->host_no); + + return &tl_hba->tl_hba_wwn; +out: + kfree(tl_hba); + return ERR_PTR(ret); +} + +void tcm_loop_drop_scsi_hba( + struct se_wwn *wwn) +{ + struct tcm_loop_hba *tl_hba = container_of(wwn, + struct tcm_loop_hba, tl_hba_wwn); + int host_no = tl_hba->sh->host_no; + /* + * Call device_unregister() on the original tl_hba->dev. + * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will + * release *tl_hba; + */ + device_unregister(&tl_hba->dev); + + printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated emulated Target" + " SAS Address: %s at Linux/SCSI Host ID: %d\n", + config_item_name(&wwn->wwn_group.cg_item), host_no); +} + +/* Start items for tcm_loop_cit */ +static ssize_t tcm_loop_wwn_show_attr_version( + struct target_fabric_configfs *tf, + char *page) +{ + return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION); +} + +TF_WWN_ATTR_RO(tcm_loop, version); + +static struct configfs_attribute *tcm_loop_wwn_attrs[] = { + &tcm_loop_wwn_version.attr, + NULL, +}; + +/* End items for tcm_loop_cit */ + +static int tcm_loop_register_configfs(void) +{ + struct target_fabric_configfs *fabric; + struct config_group *tf_cg; + int ret; + /* + * Set the TCM Loop HBA counter to zero + */ + tcm_loop_hba_no_cnt = 0; + /* + * Register the top level struct config_item_type with TCM core + */ + fabric = target_fabric_configfs_init(THIS_MODULE, "loopback"); + if (!fabric) { + printk(KERN_ERR "tcm_loop_register_configfs() failed!\n"); + return -1; + } + /* + * Setup the fabric API of function pointers used by target_core_mod + */ + fabric->tf_ops.get_fabric_name = &tcm_loop_get_fabric_name; + fabric->tf_ops.get_fabric_proto_ident = &tcm_loop_get_fabric_proto_ident; + fabric->tf_ops.tpg_get_wwn = &tcm_loop_get_endpoint_wwn; + fabric->tf_ops.tpg_get_tag = &tcm_loop_get_tag; + fabric->tf_ops.tpg_get_default_depth = &tcm_loop_get_default_depth; + fabric->tf_ops.tpg_get_pr_transport_id = &tcm_loop_get_pr_transport_id; + fabric->tf_ops.tpg_get_pr_transport_id_len = + &tcm_loop_get_pr_transport_id_len; + fabric->tf_ops.tpg_parse_pr_out_transport_id = + &tcm_loop_parse_pr_out_transport_id; + fabric->tf_ops.tpg_check_demo_mode = &tcm_loop_check_demo_mode; + fabric->tf_ops.tpg_check_demo_mode_cache = + &tcm_loop_check_demo_mode_cache; + fabric->tf_ops.tpg_check_demo_mode_write_protect = + &tcm_loop_check_demo_mode_write_protect; + fabric->tf_ops.tpg_check_prod_mode_write_protect = + &tcm_loop_check_prod_mode_write_protect; + /* + * The TCM loopback fabric module runs in demo-mode to a local + * virtual SCSI device, so fabric dependent initator ACLs are + * not required. + */ + fabric->tf_ops.tpg_alloc_fabric_acl = &tcm_loop_tpg_alloc_fabric_acl; + fabric->tf_ops.tpg_release_fabric_acl = + &tcm_loop_tpg_release_fabric_acl; + fabric->tf_ops.tpg_get_inst_index = &tcm_loop_get_inst_index; + /* + * Since tcm_loop is mapping physical memory from Linux/SCSI + * struct scatterlist arrays for each struct scsi_cmnd I/O, + * we do not need TCM to allocate a iovec array for + * virtual memory address mappings + */ + fabric->tf_ops.alloc_cmd_iovecs = NULL; + /* + * Used for setting up remaining TCM resources in process context + */ + fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map; + fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free; + fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd; + fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd; + fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session; + fabric->tf_ops.close_session = &tcm_loop_close_session; + fabric->tf_ops.stop_session = &tcm_loop_stop_session; + fabric->tf_ops.fall_back_to_erl0 = &tcm_loop_fall_back_to_erl0; + fabric->tf_ops.sess_logged_in = &tcm_loop_sess_logged_in; + fabric->tf_ops.sess_get_index = &tcm_loop_sess_get_index; + fabric->tf_ops.sess_get_initiator_sid = NULL; + fabric->tf_ops.write_pending = &tcm_loop_write_pending; + fabric->tf_ops.write_pending_status = &tcm_loop_write_pending_status; + /* + * Not used for TCM loopback + */ + fabric->tf_ops.set_default_node_attributes = + &tcm_loop_set_default_node_attributes; + fabric->tf_ops.get_task_tag = &tcm_loop_get_task_tag; + fabric->tf_ops.get_cmd_state = &tcm_loop_get_cmd_state; + fabric->tf_ops.new_cmd_failure = &tcm_loop_new_cmd_failure; + fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in; + fabric->tf_ops.queue_status = &tcm_loop_queue_status; + fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp; + fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len; + fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len; + fabric->tf_ops.is_state_remove = &tcm_loop_is_state_remove; + fabric->tf_ops.pack_lun = &tcm_loop_pack_lun; + + tf_cg = &fabric->tf_group; + /* + * Setup function pointers for generic logic in target_core_fabric_configfs.c + */ + fabric->tf_ops.fabric_make_wwn = &tcm_loop_make_scsi_hba; + fabric->tf_ops.fabric_drop_wwn = &tcm_loop_drop_scsi_hba; + fabric->tf_ops.fabric_make_tpg = &tcm_loop_make_naa_tpg; + fabric->tf_ops.fabric_drop_tpg = &tcm_loop_drop_naa_tpg; + /* + * fabric_post_link() and fabric_pre_unlink() are used for + * registration and release of TCM Loop Virtual SCSI LUNs. + */ + fabric->tf_ops.fabric_post_link = &tcm_loop_port_link; + fabric->tf_ops.fabric_pre_unlink = &tcm_loop_port_unlink; + fabric->tf_ops.fabric_make_np = NULL; + fabric->tf_ops.fabric_drop_np = NULL; + /* + * Setup default attribute lists for various fabric->tf_cit_tmpl + */ + TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; + /* + * Once fabric->tf_ops has been setup, now register the fabric for + * use within TCM + */ + ret = target_fabric_configfs_register(fabric); + if (ret < 0) { + printk(KERN_ERR "target_fabric_configfs_register() for" + " TCM_Loop failed!\n"); + target_fabric_configfs_free(fabric); + return -1; + } + /* + * Setup our local pointer to *fabric. + */ + tcm_loop_fabric_configfs = fabric; + printk(KERN_INFO "TCM_LOOP[0] - Set fabric ->" + " tcm_loop_fabric_configfs\n"); + return 0; +} + +static void tcm_loop_deregister_configfs(void) +{ + if (!tcm_loop_fabric_configfs) + return; + + target_fabric_configfs_deregister(tcm_loop_fabric_configfs); + tcm_loop_fabric_configfs = NULL; + printk(KERN_INFO "TCM_LOOP[0] - Cleared" + " tcm_loop_fabric_configfs\n"); +} + +static int __init tcm_loop_fabric_init(void) +{ + int ret; + + tcm_loop_cmd_cache = kmem_cache_create("tcm_loop_cmd_cache", + sizeof(struct tcm_loop_cmd), + __alignof__(struct tcm_loop_cmd), + 0, NULL); + if (!tcm_loop_cmd_cache) { + printk(KERN_ERR "kmem_cache_create() for" + " tcm_loop_cmd_cache failed\n"); + return -ENOMEM; + } + + ret = tcm_loop_alloc_core_bus(); + if (ret) + return ret; + + ret = tcm_loop_register_configfs(); + if (ret) { + tcm_loop_release_core_bus(); + return ret; + } + + return 0; +} + +static void __exit tcm_loop_fabric_exit(void) +{ + tcm_loop_deregister_configfs(); + tcm_loop_release_core_bus(); + kmem_cache_destroy(tcm_loop_cmd_cache); +} + +MODULE_DESCRIPTION("TCM loopback virtual Linux/SCSI fabric module"); +MODULE_AUTHOR("Nicholas A. Bellinger "); +MODULE_LICENSE("GPL"); +module_init(tcm_loop_fabric_init); +module_exit(tcm_loop_fabric_exit); diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h new file mode 100644 index 0000000..7e9f7ab --- /dev/null +++ b/drivers/target/loopback/tcm_loop.h @@ -0,0 +1,77 @@ +#define TCM_LOOP_VERSION "v2.1-rc1" +#define TL_WWN_ADDR_LEN 256 +#define TL_TPGS_PER_HBA 32 +/* + * Defaults for struct scsi_host_template tcm_loop_driver_template + * + * We use large can_queue and cmd_per_lun here and let TCM enforce + * the underlying se_device_t->queue_depth. + */ +#define TL_SCSI_CAN_QUEUE 1024 +#define TL_SCSI_CMD_PER_LUN 1024 +#define TL_SCSI_MAX_SECTORS 1024 +#define TL_SCSI_SG_TABLESIZE 256 +/* + * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len + */ +#define TL_SCSI_MAX_CMD_LEN 32 + +#ifdef CONFIG_LOOPBACK_TARGET_CDB_DEBUG +# define TL_CDB_DEBUG(x...) printk(KERN_INFO x) +#else +# define TL_CDB_DEBUG(x...) +#endif + +struct tcm_loop_cmd { + /* State of Linux/SCSI CDB+Data descriptor */ + u32 sc_cmd_state; + /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */ + struct scsi_cmnd *sc; + struct list_head *tl_cmd_list; + /* The TCM I/O descriptor that is accessed via container_of() */ + struct se_cmd tl_se_cmd; + /* Sense buffer that will be mapped into outgoing status */ + unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER]; +}; + +struct tcm_loop_tmr { + atomic_t tmr_complete; + wait_queue_head_t tl_tmr_wait; +}; + +struct tcm_loop_nexus { + int it_nexus_active; + /* + * Pointer to Linux/SCSI HBA from linux/include/scsi_host.h + */ + struct scsi_host *sh; + /* + * Pointer to TCM session for I_T Nexus + */ + struct se_session *se_sess; +}; + +struct tcm_loop_nacl { + struct se_node_acl se_node_acl; +}; + +struct tcm_loop_tpg { + unsigned short tl_tpgt; + atomic_t tl_tpg_port_count; + struct se_portal_group tl_se_tpg; + struct tcm_loop_hba *tl_hba; +}; + +struct tcm_loop_hba { + u8 tl_proto_id; + unsigned char tl_wwn_address[TL_WWN_ADDR_LEN]; + struct se_hba_s *se_hba; + struct se_lun *tl_hba_lun; + struct se_port *tl_hba_lun_sep; + struct se_device_s *se_dev_hba_ptr; + struct tcm_loop_nexus *tl_nexus; + struct device dev; + struct Scsi_Host *sh; + struct tcm_loop_tpg tl_hba_tpgs[TL_TPGS_PER_HBA]; + struct se_wwn tl_hba_wwn; +}; -- cgit v0.10.2