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| author |   Xiang Chen <chenxiang66@hisilicon.com> | 2018-11-09 22:06:34 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-11-15 14:37:05 -0500 |
| commit | 37359798ec44ae03fab383a9bef3b7c9df819063 (patch) | |
| tree | 8acd86e35b03bac13dcdca171df49f9957c2eb39 /drivers/scsi/hisi_sas/hisi_sas.h | |
| parent | scsi: hisi_sas: Add support for interrupt converge for v3 hw (diff) | |
| download | linux-dev-37359798ec44ae03fab383a9bef3b7c9df819063.tar.xz linux-dev-37359798ec44ae03fab383a9bef3b7c9df819063.zip | |
scsi: hisi_sas: Add support for interrupt coalescing for v3 hw
If INT_COAL_EN is enabled, configure time and count of interrupt
coalescing. Then if CQ collects count of CQ entries in time, it will
report the interrupt. Or if CQ doesn't collect enough CQ entries in time,
it will report the interrupt at timeout.
As all the registers are not supported to be changed dynamically, we need
to config those register between disable and enable PHYs.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas.h')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 94a9e13c069c..535c61391250 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -322,6 +322,8 @@ struct hisi_hba { unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)]; struct work_struct rst_work; u32 phy_state; + u32 intr_coal_ticks; /* Time of interrupt coalesce in us */ + u32 intr_coal_count; /* Interrupt count to coalesce */ }; /* Generic HW DMA host memory structures */ |