[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>
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 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 @@
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 @@
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);