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authorQuinn Tran <quinn.tran@cavium.com>2017-06-02 19:12:03 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2017-06-13 03:48:07 +0300
commit99e1b683c4be3fee5cff824af18411cf8cc568d0 (patch)
tree9a747eb3b790d265909f8db14c8e77e4be45419a /drivers/scsi/qla2xxx/qla_def.h
parentf7e761f56c711907ccf342532120f826d5ccff3f (diff)
downloadlinux-99e1b683c4be3fee5cff824af18411cf8cc568d0.tar.xz
scsi: qla2xxx: Add ql2xiniexchg parameter
Previously, the ql2xexchoffld module parameter was used to control the max number of exchanges to be offload onto host memory. Module parameter ql_dm_tgt_ex_pct was used to control the percentage of exchanges allocated to the Target side. With this patch, module parameter ql_dm_tgt_ex_pct is no longer used to control exchanges for the driver. New module parameter ql2xiniexchg is added to control exchanges between target mode and initiator mode. With the updated module parameters, users can control the exact number of exchanges for either Initiator or Target. The exchange offload feature will be automatically enabled when the total number of exchanges exceeds 2048 limit. Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 51b262b236b4..ddf93efe3986 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -286,7 +286,7 @@ struct name_list_extended {
#define RESPONSE_ENTRY_CNT_MQ 128 /* Number of response entries.*/
#define ATIO_ENTRY_CNT_24XX 4096 /* Number of ATIO entries. */
#define RESPONSE_ENTRY_CNT_FX00 256 /* Number of response entries.*/
-#define EXTENDED_EXCH_ENTRY_CNT 32768 /* Entries for offload case */
+#define FW_DEF_EXCHANGES_CNT 2048
struct req_que;
struct qla_tgt_sess;
@@ -3593,6 +3593,10 @@ struct qla_hw_data {
#define IS_SHADOW_REG_CAPABLE(ha) (IS_QLA27XX(ha))
#define IS_DPORT_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha))
#define IS_FAWWN_CAPABLE(ha) (IS_QLA83XX(ha) || IS_QLA27XX(ha))
+#define IS_EXCHG_OFFLD_CAPABLE(ha) \
+ (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha))
+#define IS_EXLOGIN_OFFLD_CAPABLE(ha) \
+ (IS_QLA25XX(ha) || IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha))
/* HBA serial number */
uint8_t serial0;