[SCSI] qla2xxx: Increase SG table size to support large IO size per s…

…csi command.

The sg table size is increased from 128 to 1024 to support multiple sg lists
and number of sg elements per scsi command.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

drivers/scsi/qla2xxx/qla_def.h

@@ -2989,6 +2989,8 @@ typedef struct scsi_qla_host {
 
 #define CMD_SP(Cmnd)		((Cmnd)->SCp.ptr)
 
+#define QLA_SG_ALL	1024
+
 enum nexus_wait_type {
 	WAIT_HOST = 0,
 	WAIT_TARGET,

drivers/scsi/qla2xxx/qla_os.c

@@ -2136,8 +2136,16 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	else
 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
 						base_vha->vp_idx;
-	if (IS_QLA2100(ha))
-		host->sg_tablesize = 32;
+
+	/* Set the SG table size based on ISP type */
+	if (!IS_FWI2_CAPABLE(ha)) {
+		if (IS_QLA2100(ha))
+			host->sg_tablesize = 32;
+	} else {
+		if (!IS_QLA82XX(ha))
+			host->sg_tablesize = QLA_SG_ALL;
+	}
+
 	host->max_id = max_id;
 	host->this_id = 255;
 	host->cmd_per_lun = 3;