diff options
author | Jayamohan Kallickal <jayamohank@gmail.com> | 2013-09-28 22:35:50 (GMT) |
---|---|---|
committer | James Bottomley <JBottomley@Parallels.com> | 2013-10-25 08:58:08 (GMT) |
commit | 1e4be6ff41573139620080268a1aa6d1d8726358 (patch) | |
tree | 662348d04703c2fd1e83e76795f9d365bcc3e2f3 | |
parent | 0a3db7c0a3e566e872aa9b0ac2eaf1353be7ffcc (diff) | |
download | linux-fsl-qoriq-1e4be6ff41573139620080268a1aa6d1d8726358.tar.xz |
[SCSI] be2iscsi: Fix connection offload to support Dual Chute.
The connection is offload to each chute in a round-robin manner
if both the chute is loaded with iSCSI protocol
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-rw-r--r-- | drivers/scsi/be2iscsi/be_iscsi.c | 6 | ||||
-rw-r--r-- | drivers/scsi/be2iscsi/be_main.c | 13 | ||||
-rw-r--r-- | drivers/scsi/be2iscsi/be_main.h | 1 | ||||
-rw-r--r-- | drivers/scsi/be2iscsi/be_mgmt.c | 19 |
4 files changed, 31 insertions, 8 deletions
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index 63b2be0..a7cd92c 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -194,6 +194,8 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session, struct beiscsi_conn *beiscsi_conn = conn->dd_data; struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct beiscsi_hba *phba = iscsi_host_priv(shost); + struct hwi_controller *phwi_ctrlr = phba->phwi_ctrlr; + struct hwi_wrb_context *pwrb_context; struct beiscsi_endpoint *beiscsi_ep; struct iscsi_endpoint *ep; @@ -214,9 +216,13 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session, return -EEXIST; } + pwrb_context = &phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID( + beiscsi_ep->ep_cid)]; + beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid; beiscsi_conn->ep = beiscsi_ep; beiscsi_ep->conn = beiscsi_conn; + beiscsi_conn->doorbell_offset = pwrb_context->doorbell_offset; beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, "BS_%d : beiscsi_conn=%p conn=%p ep_cid=%d\n", diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index b57e5bd..d539b17 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -4585,8 +4585,8 @@ beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn, doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; - - iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); + iowrite32(doorbell, phba->db_va + + beiscsi_conn->doorbell_offset); } static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt, @@ -4811,7 +4811,8 @@ int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg, DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; - iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); + iowrite32(doorbell, phba->db_va + + beiscsi_conn->doorbell_offset); return 0; } @@ -4866,7 +4867,8 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg, DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; - iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); + iowrite32(doorbell, phba->db_va + + beiscsi_conn->doorbell_offset); return 0; } @@ -4968,7 +4970,8 @@ static int beiscsi_mtask(struct iscsi_task *task) doorbell |= (io_task->pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT; doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT; - iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET); + iowrite32(doorbell, phba->db_va + + beiscsi_conn->doorbell_offset); return 0; } diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h index e5e0d7e..3fa1e81 100644 --- a/drivers/scsi/be2iscsi/be_main.h +++ b/drivers/scsi/be2iscsi/be_main.h @@ -425,6 +425,7 @@ struct beiscsi_conn { struct iscsi_conn *conn; struct beiscsi_hba *phba; u32 exp_statsn; + u32 doorbell_offset; u32 beiscsi_conn_cid; struct beiscsi_endpoint *ep; unsigned short login_in_progress; diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index fcb9976..bcddc9f 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c @@ -628,6 +628,16 @@ unsigned int mgmt_upload_connection(struct beiscsi_hba *phba, return tag; } +/** + * mgmt_open_connection()- Establish a TCP CXN + * @dst_addr: Destination Address + * @beiscsi_ep: ptr to device endpoint struct + * @nonemb_cmd: ptr to memory allocated for command + * + * return + * Success: Tag number of the MBX Command issued + * Failure: Error code + **/ int mgmt_open_connection(struct beiscsi_hba *phba, struct sockaddr *dst_addr, struct beiscsi_endpoint *beiscsi_ep, @@ -645,14 +655,17 @@ int mgmt_open_connection(struct beiscsi_hba *phba, struct phys_addr template_address = { 0, 0 }; struct phys_addr *ptemplate_address; unsigned int tag = 0; - unsigned int i; + unsigned int i, ulp_num; unsigned short cid = beiscsi_ep->ep_cid; struct be_sge *sge; phwi_ctrlr = phba->phwi_ctrlr; phwi_context = phwi_ctrlr->phwi_ctxt; - def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, 0); - def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, 0); + + ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num; + + def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num); + def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num); ptemplate_address = &template_address; ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address); |