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Commit df032d0e authored by John Garry's avatar John Garry Committed by Martin K. Petersen
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scsi: hisi_sas: add v2 hw slot complete internal abort support 



Add code in slot_complete_v2_hw() to deal with the slots which have
completed due to internal abort.

The status codes have the following meaning:

- STAT_IO_ABORTED: the IO has been aborted due to internal abort,
  whether by device or individual abort command

- STAT_IO_COMPLETE: internal abort command has completed successfully
  for device or individual abort command

- STAT_IO_NO_DEVICE: internal abort command has completed for device but
  cannot find any IO

- STAT_IO_NOT_VALID: internal abort command has completed for single
  command but could not find the command

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 a3e665d9

drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

+31 −0
Original line number Diff line number Diff line
@@ -227,6 +227,13 @@ 
#define CMPLT_HDR_RSPNS_XFRD_MSK	(0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)

#define CMPLT_HDR_ERX_OFF		12

#define CMPLT_HDR_ERX_MSK		(0x1 << CMPLT_HDR_ERX_OFF)

#define CMPLT_HDR_ABORT_STAT_OFF	13

#define CMPLT_HDR_ABORT_STAT_MSK	(0x7 << CMPLT_HDR_ABORT_STAT_OFF)

/* abort_stat */

#define STAT_IO_NOT_VALID		0x1

#define STAT_IO_NO_DEVICE		0x2

#define STAT_IO_COMPLETE		0x3

#define STAT_IO_ABORTED			0x4

/* dw1 */

#define CMPLT_HDR_IPTT_OFF		0

#define CMPLT_HDR_IPTT_MSK		(0xffff << CMPLT_HDR_IPTT_OFF)
@@ -1569,6 +1576,30 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot, 
		goto out;

	}



	/* Use SAS+TMF status codes */

	switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK)

			>> CMPLT_HDR_ABORT_STAT_OFF) {

	case STAT_IO_ABORTED:

		/* this io has been aborted by abort command */

		ts->stat = SAS_ABORTED_TASK;

		goto out;

	case STAT_IO_COMPLETE:

		/* internal abort command complete */

		ts->stat = TMF_RESP_FUNC_COMPLETE;

		goto out;

	case STAT_IO_NO_DEVICE:

		ts->stat = TMF_RESP_FUNC_COMPLETE;

		goto out;

	case STAT_IO_NOT_VALID:

		/* abort single io, controller don't find

		 * the io need to abort

		 */

		ts->stat = TMF_RESP_FUNC_FAILED;

		goto out;

	default:

		break;

	}



	if ((complete_hdr->dw0 & CMPLT_HDR_ERX_MSK) &&

		(!(complete_hdr->dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {