[SCSI] be2iscsi: Config parameters update for Dual Chute Support

On the adapter iSCSI protocol can be loaded on either one or both
the CHUTE.Check on which CHUTE iSCSI Protocol is loaded and get
configuration parameters based on which driver initization is done.

For BE-X family iSCSI protocol is loaded only on single chute.

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>

1 files changed, 38 insertions, 25 deletions

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 6ad36af4654a..2bea0762c14f 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -699,30 +699,38 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
 	return status;
 }
 
+/**
+ * beiscsi_get_params()- Set the config paramters
+ * @phba: ptr  device priv structure
+ **/
 static void beiscsi_get_params(struct beiscsi_hba *phba)
 {
-	phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count
-				    - (phba->fw_config.iscsi_cid_count
-				    + BE2_TMFS
-				    + BE2_NOPOUT_REQ));
-	phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count;
-	phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count;
-	phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count;
+	uint32_t total_cid_count = 0;
+	uint32_t total_icd_count = 0;
+	uint8_t ulp_num = 0;
+
+	total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
+			  BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+			total_icd_count = phba->fw_config.
+					  iscsi_icd_count[ulp_num];
+			break;
+		}
+
+	phba->params.ios_per_ctrl = (total_icd_count -
+				    (total_cid_count +
+				     BE2_TMFS + BE2_NOPOUT_REQ));
+	phba->params.cxns_per_ctrl = total_cid_count;
+	phba->params.asyncpdus_per_ctrl = total_cid_count;
+	phba->params.icds_per_ctrl = total_icd_count;
 	phba->params.num_sge_per_io = BE2_SGE;
 	phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
 	phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
 	phba->params.eq_timer = 64;
-	phba->params.num_eq_entries =
-	    (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2
-				    + BE2_TMFS) / 512) + 1) * 512;
-	phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
-				? 1024 : phba->params.num_eq_entries;
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : phba->params.num_eq_entries=%d\n",
-		    phba->params.num_eq_entries);
-	phba->params.num_cq_entries =
-	    (((BE2_CMDS_PER_CXN * 2 +  phba->fw_config.iscsi_cid_count * 2
-				    + BE2_TMFS) / 512) + 1) * 512;
+	phba->params.num_eq_entries = 1024;
+	phba->params.num_cq_entries = 1024;
 	phba->params.wrbs_per_cxn = 256;
 }
 
@@ -2482,6 +2490,10 @@ static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
 	AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
 }
 
+/**
+ * beiscsi_find_mem_req()- Find mem needed
+ * @phba: ptr to HBA struct
+ **/
 static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 {
 	unsigned int num_cq_pages, num_async_pdu_buf_pages;
@@ -2705,7 +2717,7 @@ static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
 	/* Allocate memory for WRBQ */
 	phwi_ctxt = phwi_ctrlr->phwi_ctxt;
 	phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) *
-				     phba->fw_config.iscsi_cid_count,
+				     phba->params.cxns_per_ctrl,
 				     GFP_KERNEL);
 	if (!phwi_ctxt->be_wrbq) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@@ -2804,7 +2816,7 @@ static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	memset(pasync_ctx, 0, sizeof(*pasync_ctx));
 
 	pasync_ctx->async_entry = kzalloc(sizeof(struct hwi_async_entry) *
-					  phba->fw_config.iscsi_cid_count,
+					  phba->params.cxns_per_ctrl,
 					  GFP_KERNEL);
 	if (!pasync_ctx->async_entry) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@@ -3303,14 +3315,14 @@ beiscsi_post_pages(struct beiscsi_hba *phba)
 	struct mem_array *pm_arr;
 	unsigned int page_offset, i;
 	struct be_dma_mem sgl;
-	int status;
+	int status, ulp_num = 0;
 
 	mem_descr = phba->init_mem;
 	mem_descr += HWI_MEM_SGE;
 	pm_arr = mem_descr->mem_array;
 
 	page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
-			phba->fw_config.iscsi_icd_start) / PAGE_SIZE;
+			phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
 	for (i = 0; i < mem_descr->num_elements; i++) {
 		hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
 		status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
@@ -3767,7 +3779,7 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 	struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
 	struct sgl_handle *psgl_handle;
 	struct iscsi_sge *pfrag;
-	unsigned int arr_index, i, idx;
+	unsigned int arr_index, i, idx, ulp_num = 0;
 
 	phba->io_sgl_hndl_avbl = 0;
 	phba->eh_sgl_hndl_avbl = 0;
@@ -3853,7 +3865,8 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 			AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
 			pfrag += phba->params.num_sge_per_io;
 			psgl_handle->sgl_index =
-				phba->fw_config.iscsi_icd_start + arr_index++;
+				phba->fw_config.iscsi_icd_start[ulp_num] +
+				arr_index++;
 		}
 		idx++;
 	}
@@ -5022,7 +5035,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 			    "BM_%d : Error getting fw config\n");
 		goto free_port;
 	}
-	phba->shost->max_id = phba->fw_config.iscsi_cid_count;
+	phba->shost->max_id = phba->params.cxns_per_ctrl;
 	beiscsi_get_params(phba);
 	phba->shost->can_queue = phba->params.ios_per_ctrl;
 	ret = beiscsi_init_port(phba);