[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: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index ba8171fe17ef07ba71ed2e9d3dab1818c055e70f..06117207f6013687c5a68a185ccb4620ee9a47bb 100644 (file)
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -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;