From: Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>
Signed-off-by: Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_nx.c | 13 +++++++++----
drivers/scsi/qla2xxx/qla_os.c | 2 +-
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index ee575b4..e3e3ebd 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -3372,11 +3372,16 @@ qla82xx_start_iocbs(srb_t *sp)
dbval = 0x04 | (ha->portnum << 5);
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
- WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
- wmb();
- while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
- WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
+ if (ql2xdbwr)
+ qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
+ else {
+ WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
wmb();
+ while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
+ WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
+ dbval);
+ wmb();
+ }
}
}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index bc35ecf..5be8db7 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -140,7 +140,7 @@ MODULE_PARM_DESC(ql2xetsenable,
"Enables firmware ETS burst."
"Default is 0 - skip ETS enablement.");
-int ql2xdbwr;
+int ql2xdbwr = 1;
module_param(ql2xdbwr, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xdbwr,
"Option to specify scheme for request queue posting\n"
--
1.6.2.rc1.30.gd43c
--
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