[SCSI] pm80xx: fix Adaptec 71605H hang

The IO command size is 128 bytes for these new controllers as opposed to 64
for the old 8001 controller.

The Adaptec out-of-tree driver did this correctly. After comparing the two
this turned out to be the crucial difference.

So don't hardcode the IO command size, instead use pm8001_ha->iomb_size as
that is the correct value for both old and new controllers.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Acked-by: Jack Wang <xjtuwjp@gmail.com>
Cc: stable@vger.kernel.org      # for v3.10 and up
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 5456f5c73593..4a2195752198 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -221,7 +221,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
         pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt          = 0x01;
         for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
                 pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt  =
-                        PM8001_MPI_QUEUE | (64 << 16) | (0x00<<30);
+                        PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
                 pm8001_ha->inbnd_q_tbl[i].upper_base_addr       =
                         pm8001_ha->memoryMap.region[IB + i].phys_addr_hi;
                 pm8001_ha->inbnd_q_tbl[i].lower_base_addr       =
@@ -247,7 +247,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
         }
         for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
                 pm8001_ha->outbnd_q_tbl[i].element_size_cnt     =
-                        PM8001_MPI_QUEUE | (64 << 16) | (0x01<<30);
+                        PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
                 pm8001_ha->outbnd_q_tbl[i].upper_base_addr      =
                         pm8001_ha->memoryMap.region[OB + i].phys_addr_hi;
                 pm8001_ha->outbnd_q_tbl[i].lower_base_addr      =
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 7f77210f5cf3..9f91030211e8 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -275,7 +275,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
 
         for (i = 0; i < PM8001_MAX_SPCV_INB_NUM; i++) {
                 pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt  =
-                        PM8001_MPI_QUEUE | (64 << 16) | (0x00<<30);
+                        PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
                 pm8001_ha->inbnd_q_tbl[i].upper_base_addr       =
                         pm8001_ha->memoryMap.region[IB + i].phys_addr_hi;
                 pm8001_ha->inbnd_q_tbl[i].lower_base_addr       =
@@ -301,7 +301,7 @@ static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
         }
         for (i = 0; i < PM8001_MAX_SPCV_OUTB_NUM; i++) {
                 pm8001_ha->outbnd_q_tbl[i].element_size_cnt     =
-                        PM8001_MPI_QUEUE | (64 << 16) | (0x01<<30);
+                        PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
                 pm8001_ha->outbnd_q_tbl[i].upper_base_addr      =
                         pm8001_ha->memoryMap.region[OB + i].phys_addr_hi;
                 pm8001_ha->outbnd_q_tbl[i].lower_base_addr      =