[SCSI] qla2xxx: Increase SG table size to support large IO size per scsi 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>

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index ee15f4f10fec5f331f47ae829e04718a2fee3844..df7d74f93e5097225d90dd43acfadf2e6ea51823 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/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,

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index e1782f7714003f10a6b7223d0788cb8bf32c7c92..2e10f2b2e017a259fa56045bfca05591721623cc 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/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;