Commit 9ac49d3a authored by nagalakshmi.nandigama@lsi.com's avatar nagalakshmi.nandigama@lsi.com Committed by James Bottomley

[SCSI] mpt2sas: Increase max transfer support from 4MB to 16MB

Increase max transfer support from 4MB to 16MB.
This is done by changing the shost->max_sector from 8192 to 32767
Signed-off-by: default avatarNagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent ba96bd0b
......@@ -99,7 +99,7 @@ MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
static ushort max_sectors = 0xFFFF;
module_param(max_sectors, ushort, 0);
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 8192 default=8192");
MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767 default=32767");
/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
#define MPT2SAS_MAX_LUN (16895)
......@@ -7453,7 +7453,7 @@ static struct scsi_host_template scsih_driver_template = {
.can_queue = 1,
.this_id = -1,
.sg_tablesize = MPT2SAS_SG_DEPTH,
.max_sectors = 8192,
.max_sectors = 32767,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mpt2sas_host_attrs,
......@@ -7994,11 +7994,11 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
"for max_sectors, range is 64 to 8192. Assigning "
"value of 64.\n", ioc->name, max_sectors);
} else if (max_sectors > 8192) {
shost->max_sectors = 8192;
} else if (max_sectors > 32767) {
shost->max_sectors = 32767;
printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
"for max_sectors, range is 64 to 8192. Assigning "
"default value of 8192.\n", ioc->name,
"default value of 32767.\n", ioc->name,
max_sectors);
} else {
shost->max_sectors = max_sectors & 0xFFFE;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment