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| author | John Garry <john.garry@huawei.com> | 2016-08-24 11:05:50 (GMT) |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-08-26 02:38:54 (GMT) |
| commit | a3e665d91fcafbf29c92b09e44dc29a9c1436a18 (patch) | |
| tree | e06ae33e41de0eb1be1bb263b430fa2c97a2ac69 /drivers/scsi/hisi_sas | |
| parent | dc8a49cabc73dea7c1c05c6648dcfc67dbd0d5fc (diff) | |
| download | linux-a3e665d91fcafbf29c92b09e44dc29a9c1436a18.tar.xz | |
scsi: hisi_sas: add prep_abort_v2_hw()
Add function to prepare the an internal abort for v2 hw.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index f965604..fec1675 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -174,6 +174,10 @@ /* HW dma structures */ /* Delivery queue header */ /* dw0 */ +#define CMD_HDR_ABORT_FLAG_OFF 0 +#define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF) +#define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2 +#define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF) #define CMD_HDR_RESP_REPORT_OFF 5 #define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF) #define CMD_HDR_TLR_CTRL_OFF 6 @@ -214,6 +218,8 @@ #define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF) #define CMD_HDR_DATA_SGL_LEN_OFF 16 #define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF) +#define CMD_HDR_ABORT_IPTT_OFF 16 +#define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF) /* Completion header */ /* dw0 */ @@ -1775,6 +1781,32 @@ static int prep_ata_v2_hw(struct hisi_hba *hisi_hba, return 0; } +static int prep_abort_v2_hw(struct hisi_hba *hisi_hba, + struct hisi_sas_slot *slot, + int device_id, int abort_flag, int tag_to_abort) +{ + struct sas_task *task = slot->task; + struct domain_device *dev = task->dev; + struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; + struct hisi_sas_port *port = slot->port; + + /* dw0 */ + hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/ + (port->id << CMD_HDR_PORT_OFF) | + ((dev_is_sata(dev) ? 1:0) << + CMD_HDR_ABORT_DEVICE_TYPE_OFF) | + (abort_flag << CMD_HDR_ABORT_FLAG_OFF)); + + /* dw1 */ + hdr->dw1 = cpu_to_le32(device_id << CMD_HDR_DEV_ID_OFF); + + /* dw7 */ + hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF); + hdr->transfer_tags = cpu_to_le32(slot->idx); + + return 0; +} + static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba) { int i, res = 0; @@ -2239,6 +2271,7 @@ static const struct hisi_sas_hw hisi_sas_v2_hw = { .prep_smp = prep_smp_v2_hw, .prep_ssp = prep_ssp_v2_hw, .prep_stp = prep_ata_v2_hw, + .prep_abort = prep_abort_v2_hw, .get_free_slot = get_free_slot_v2_hw, .start_delivery = start_delivery_v2_hw, .slot_complete = slot_complete_v2_hw, |