diff options
author | Harish Zunjarrao <harish.zunjarrao@qlogic.com> | 2011-08-12 09:51:27 (GMT) |
---|---|---|
committer | James Bottomley <JBottomley@Parallels.com> | 2011-08-27 14:36:44 (GMT) |
commit | 6085491c34b37fa806f70ccd3fb2bf08416e9e98 (patch) | |
tree | 50ee5729de3dfce344ea525ee5c64c896cf7ca06 /drivers | |
parent | 5232f801bd0cfb4122e9a28ff942965c3c485fa7 (diff) | |
download | linux-fsl-qoriq-6085491c34b37fa806f70ccd3fb2bf08416e9e98.tar.xz |
[SCSI] qla4xxx: Added Get ACB support using BSG
This command is used to read ACB params from firmware
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/scsi/qla4xxx/ql4_bsg.c | 68 | ||||
-rw-r--r-- | drivers/scsi/qla4xxx/ql4_bsg.h | 1 | ||||
-rw-r--r-- | drivers/scsi/qla4xxx/ql4_glbl.h | 4 | ||||
-rw-r--r-- | drivers/scsi/qla4xxx/ql4_mbx.c | 15 |
4 files changed, 80 insertions, 8 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_bsg.c b/drivers/scsi/qla4xxx/ql4_bsg.c index 4704a52..8acdc58 100644 --- a/drivers/scsi/qla4xxx/ql4_bsg.c +++ b/drivers/scsi/qla4xxx/ql4_bsg.c @@ -381,6 +381,71 @@ leave: return rval; } +static int +qla4xxx_bsg_get_acb(struct bsg_job *bsg_job) +{ + struct Scsi_Host *host = iscsi_job_to_shost(bsg_job); + struct scsi_qla_host *ha = to_qla_host(host); + struct iscsi_bsg_request *bsg_req = bsg_job->request; + struct iscsi_bsg_reply *bsg_reply = bsg_job->reply; + uint32_t acb_type = 0; + uint32_t len = 0; + dma_addr_t acb_dma; + uint8_t *acb = NULL; + int rval = -EINVAL; + + bsg_reply->reply_payload_rcv_len = 0; + + if (unlikely(pci_channel_offline(ha->pdev))) + goto leave; + + /* Only 4022 and above adapters are supported */ + if (is_qla4010(ha)) + goto leave; + + if (ql4xxx_reset_active(ha)) { + ql4_printk(KERN_ERR, ha, "%s: reset active\n", __func__); + rval = -EBUSY; + goto leave; + } + + acb_type = bsg_req->rqst_data.h_vendor.vendor_cmd[1]; + len = bsg_job->reply_payload.payload_len; + if (len < sizeof(struct addr_ctrl_blk)) { + ql4_printk(KERN_ERR, ha, "%s: invalid acb len %d\n", + __func__, len); + rval = -EINVAL; + goto leave; + } + + acb = dma_alloc_coherent(&ha->pdev->dev, len, &acb_dma, GFP_KERNEL); + if (!acb) { + ql4_printk(KERN_ERR, ha, "%s: dma alloc failed for acb " + "data\n", __func__); + rval = -ENOMEM; + goto leave; + } + + rval = qla4xxx_get_acb(ha, acb_dma, acb_type, len); + if (rval) { + ql4_printk(KERN_ERR, ha, "%s: get acb failed\n", __func__); + bsg_reply->result = DID_ERROR << 16; + rval = -EIO; + } else { + bsg_reply->reply_payload_rcv_len = + sg_copy_from_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, + acb, len); + bsg_reply->result = DID_OK << 16; + } + + bsg_job_done(bsg_job, bsg_reply->result, + bsg_reply->reply_payload_rcv_len); + dma_free_coherent(&ha->pdev->dev, len, acb, acb_dma); +leave: + return rval; +} + /** * qla4xxx_process_vendor_specific - handle vendor specific bsg request * @job: iscsi_bsg_job to handle @@ -411,6 +476,9 @@ int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job) case QLISCSI_VND_RESTORE_DEFAULTS: return qla4xxx_restore_defaults(bsg_job); + case QLISCSI_VND_GET_ACB: + return qla4xxx_bsg_get_acb(bsg_job); + default: ql4_printk(KERN_ERR, ha, "%s: invalid BSG vendor command: " "0x%x\n", __func__, bsg_req->msgcode); diff --git a/drivers/scsi/qla4xxx/ql4_bsg.h b/drivers/scsi/qla4xxx/ql4_bsg.h index 84a1391..c6a03645 100644 --- a/drivers/scsi/qla4xxx/ql4_bsg.h +++ b/drivers/scsi/qla4xxx/ql4_bsg.h @@ -14,5 +14,6 @@ #define QLISCSI_VND_READ_NVRAM 4 #define QLISCSI_VND_UPDATE_NVRAM 5 #define QLISCSI_VND_RESTORE_DEFAULTS 6 +#define QLISCSI_VND_GET_ACB 7 #endif diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h index 1a0f601..160db9d 100644 --- a/drivers/scsi/qla4xxx/ql4_glbl.h +++ b/drivers/scsi/qla4xxx/ql4_glbl.h @@ -56,8 +56,8 @@ int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha, int qla4xxx_disable_acb(struct scsi_qla_host *ha); int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, uint32_t *mbox_sts, dma_addr_t acb_dma); -int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, - uint32_t *mbox_sts, dma_addr_t acb_dma); +int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma, + uint32_t acb_type, uint32_t len); int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx, uint32_t ip_idx, uint32_t *sts); void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session); diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index dfc38aa..de733a7 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -1425,18 +1425,21 @@ int qla4xxx_disable_acb(struct scsi_qla_host *ha) return status; } -int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd, - uint32_t *mbox_sts, dma_addr_t acb_dma) +int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma, + uint32_t acb_type, uint32_t len) { + uint32_t mbox_cmd[MBOX_REG_COUNT]; + uint32_t mbox_sts[MBOX_REG_COUNT]; int status = QLA_SUCCESS; - memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT); - memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT); + memset(&mbox_cmd, 0, sizeof(mbox_cmd)); + memset(&mbox_sts, 0, sizeof(mbox_sts)); + mbox_cmd[0] = MBOX_CMD_GET_ACB; - mbox_cmd[1] = 0; /* Primary ACB */ + mbox_cmd[1] = acb_type; mbox_cmd[2] = LSDW(acb_dma); mbox_cmd[3] = MSDW(acb_dma); - mbox_cmd[4] = sizeof(struct addr_ctrl_blk); + mbox_cmd[4] = len; status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]); if (status != QLA_SUCCESS) { |