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Commit a3e665d9 authored by John Garry's avatar John Garry Committed by Martin K. Petersen
Browse files

scsi: hisi_sas: add prep_abort_v2_hw() 



Add function to prepare the an internal abort for v2 hw.

Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent dc8a49ca

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

+33 −0
Original line number Diff line number Diff line
@@ -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,