Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 19fff154 authored by Kashyap, Desai's avatar Kashyap, Desai Committed by James Bottomley
Browse files

[SCSI] mptfusion: Adding inline data padding support for TAPE drive. 



Adding support for inline data padding for TAPE drive when running U320.

[jejb: whitespace fixes]
Signed-off-by: default avatarKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 56cee8d5

drivers/message/fusion/mptspi.c

+22 −0
Original line number Diff line number Diff line
@@ -867,6 +867,10 @@ static int mptspi_write_spi_device_pg1(struct scsi_target *starget, 
	struct _x_config_parms cfg;

	struct _CONFIG_PAGE_HEADER hdr;

	int err = -EBUSY;

	u32 nego_parms;

	u32 period;

	struct scsi_device *sdev;

	int i;



	/* don't allow updating nego parameters on RAID devices */

	if (starget->channel == 0 &&
@@ -904,6 +908,24 @@ static int mptspi_write_spi_device_pg1(struct scsi_target *starget, 
	pg1->Header.PageNumber = hdr.PageNumber;

	pg1->Header.PageType = hdr.PageType;



	nego_parms = le32_to_cpu(pg1->RequestedParameters);

	period = (nego_parms & MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK) >>

		MPI_SCSIDEVPAGE1_RP_SHIFT_MIN_SYNC_PERIOD;

	if (period == 8) {

		/* Turn on inline data padding for TAPE when running U320 */

		for (i = 0 ; i < 16; i++) {

			sdev = scsi_device_lookup_by_target(starget, i);

			if (sdev && sdev->type == TYPE_TAPE) {

				sdev_printk(KERN_DEBUG, sdev, MYIOC_s_FMT

					    "IDP:ON\n", ioc->name);

				nego_parms |= MPI_SCSIDEVPAGE1_RP_IDP;

				pg1->RequestedParameters =

				    cpu_to_le32(nego_parms);

				break;

			}

		}

	}



	mptspi_print_write_nego(hd, starget, le32_to_cpu(pg1->RequestedParameters));



	if (mpt_config(ioc, &cfg)) {