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authorJohn Garry <john.garry@huawei.com>2016-08-24 11:05:50 (GMT)
committerMartin K. Petersen <martin.petersen@oracle.com>2016-08-26 02:38:54 (GMT)
commita3e665d91fcafbf29c92b09e44dc29a9c1436a18 (patch)
treee06ae33e41de0eb1be1bb263b430fa2c97a2ac69 /drivers/scsi/hisi_sas
parentdc8a49cabc73dea7c1c05c6648dcfc67dbd0d5fc (diff)
downloadlinux-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.c33
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,