redonkable/alistair23-linux
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[SCSI] qla2xxx: Increase SG table size to support large IO size per scsi command.

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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>
This commit is contained in:
Giridhar Malavali 2010-09-03 15:20:56 -07:00 committed by James Bottomley
parent 3fadb80b0f
commit 58548cb51a
2 changed files with 12 additions and 2 deletions
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2
drivers/scsi/qla2xxx/qla_def.h
View file

@ -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,

12
drivers/scsi/qla2xxx/qla_os.c
View file

@ -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;