diff options
| author | Quinn Tran <quinn.tran@cavium.com> | 2018-09-04 14:19:14 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-09-11 20:28:08 -0400 |
| commit | 8b4673ba3a1b992b757a32667d2d3adae80e11fd (patch) | |
| tree | 4ed44894051dbf45b28977d3b4c3f9fec5096ec8 /drivers/scsi/qla2xxx/qla_def.h | |
| parent | 6b0431d6fa20bd1b600a1e6df76bf7425fe178b5 (diff) | |
scsi: qla2xxx: Add support for ZIO6 interrupt threshold
Add sysfs support to control zio6 interrupt threshold. Using this sysfs hook
user can set when to generate interrupts. This value will be used to tell
firmware to generate interrupt at a certain interval. If the number of
exchanges/commands fall below defined setting, then the interrupt will be
generated immediately by the firmware.
By default ZIO6 will coalesce interrupts to a specified interval
regardless of low traffic or high traffic.
[mkp: fixed several typos]
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.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 8cbfbeb0751c..3a03fe217ac2 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4190,6 +4190,10 @@ struct qla_hw_data { atomic_t nvme_active_aen_cnt; uint16_t nvme_last_rptd_aen; /* Last recorded aen count */ + + atomic_t zio_threshold; + uint16_t last_zio_threshold; +#define DEFAULT_ZIO_THRESHOLD 64 }; #define FW_ABILITY_MAX_SPEED_MASK 0xFUL @@ -4269,10 +4273,11 @@ typedef struct scsi_qla_host { #define FX00_CRITEMP_RECOVERY 25 #define FX00_HOST_INFO_RESEND 26 #define QPAIR_ONLINE_CHECK_NEEDED 27 -#define SET_ZIO_THRESHOLD_NEEDED 28 +#define SET_NVME_ZIO_THRESHOLD_NEEDED 28 #define DETECT_SFP_CHANGE 29 #define N2N_LOGIN_NEEDED 30 #define IOCB_WORK_ACTIVE 31 +#define SET_ZIO_THRESHOLD_NEEDED 32 unsigned long pci_flags; #define PFLG_DISCONNECTED 0 /* PCI device removed */ |