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From: Shaun Tancheff <shaun@tancheff.com>
To: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Shaun Tancheff <shaun@tancheff.com>, Tejun Heo <tj@kernel.org>,
	Christoph Hellwig <hch@lst.de>, Tom Yan <tom.ty89@gmail.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Damien Le Moal <damien.lemoal@hgst.com>,
	Hannes Reinecke <hare@suse.de>,
	Josh Bingaman <josh.bingaman@seagate.com>,
	Hannes Reinecke <hare@suse.com>,
	Shaun Tancheff <shaun.tancheff@seagate.com>
Subject: [PATCH v6 4/4] SCT Write Same handle ATA_DFLAG_PIO
Date: Sun, 21 Aug 2016 23:23:21 -0500	[thread overview]
Message-ID: <20160822042321.24367-5-shaun@tancheff.com> (raw)
In-Reply-To: <20160822042321.24367-1-shaun@tancheff.com>

Use non DMA write log when ATA_DFLAG_PIO is set.

Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com>
---
v6: Added check for ATA_DFLAG_PIO and fallback to non DMA write log for
    SCT Write Same

 drivers/ata/libata-scsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 37f456e..e50b7a7 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3485,6 +3485,8 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
 		tf->device = ATA_CMD_STANDBYNOW1;
 		tf->protocol = ATA_PROT_DMA;
 		tf->command = ATA_CMD_WRITE_LOG_DMA_EXT;
+		if (unlikely(dev->flags & ATA_DFLAG_PIO))
+			tf->command = ATA_CMD_WRITE_LOG_EXT;
 	}
 
 	tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 |
-- 
2.9.3


  parent reply	other threads:[~2016-08-22  4:25 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-22  4:23 [PATCH v6 0/4] SCT Write Same Shaun Tancheff
2016-08-22  4:23 ` [PATCH v6 1/4] libata: Safely overwrite attached page in WRITE SAME xlat Shaun Tancheff
2016-08-22  6:27   ` Hannes Reinecke
2016-08-22 19:27   ` Tom Yan
2016-08-22 19:51     ` Shaun Tancheff
2016-08-22 20:12       ` Tom Yan
2016-08-22 21:20   ` Tom Yan
2016-08-22 22:00     ` Shaun Tancheff
2016-08-22 23:49       ` Tom Yan
2016-08-23  1:01         ` Shaun Tancheff
2016-08-23  5:26           ` Tom Yan
2016-08-23  6:20             ` Shaun Tancheff
2016-08-23  7:53               ` Tom Yan
2016-08-23  8:42                 ` Shaun Tancheff
2016-08-23  9:04                   ` Tom Yan
2016-08-24  3:33                 ` Martin K. Petersen
2016-08-24  5:31                   ` Tom Yan
2016-08-24 21:28                     ` Shaun Tancheff
2016-08-25  6:31                       ` Tom Yan
2016-08-25  7:18                         ` Shaun Tancheff
2016-08-22  4:23 ` [PATCH v6 2/4] Add support for SCT Write Same Shaun Tancheff
2016-08-22  6:27   ` Hannes Reinecke
2016-08-22 19:20   ` Tom Yan
2016-08-22 19:43     ` Shaun Tancheff
2016-08-22 20:14       ` Tom Yan
2016-08-22 22:07         ` Shaun Tancheff
2016-08-22 23:09           ` Tom Yan
2016-08-23  0:36             ` Shaun Tancheff
2016-08-23  5:55               ` Tom Yan
2016-08-23  6:11                 ` Shaun Tancheff
2016-08-23  7:57                   ` Tom Yan
2016-08-23 10:37   ` Tom Yan
2016-08-23 10:56     ` Shaun Tancheff
2016-08-24  5:57       ` Tom Yan
2016-08-24  6:10         ` Tom Yan
2016-08-24 22:04           ` Shaun Tancheff
2016-08-25  6:23             ` Tom Yan
2016-08-25  7:31               ` Shaun Tancheff
2016-08-22  4:23 ` [PATCH v6 3/4] SCT Write Same / DSM Trim Shaun Tancheff
2016-08-22  6:30   ` Hannes Reinecke
2016-08-24 18:08     ` [PATCH v6 3/4 RESEND] " Shaun Tancheff
2016-08-25  7:01       ` Tom Yan
2016-08-25  8:03         ` Shaun Tancheff
2016-08-25  9:30           ` Tom Yan
2016-08-22  8:31   ` [PATCH v6 3/4] " Tom Yan
2016-08-22  8:33     ` Tom Yan
2016-08-22 15:04       ` Shaun Tancheff
2016-08-22 17:02         ` Tom Yan
2016-08-22 18:00           ` Shaun Tancheff
2016-08-22 18:52             ` Tom Yan
2016-08-22 20:57               ` Tom Yan
2016-08-22  4:23 ` Shaun Tancheff [this message]
2016-08-22  6:31   ` [PATCH v6 4/4] SCT Write Same handle ATA_DFLAG_PIO Hannes Reinecke
2016-08-22  6:32 ` [PATCH v6 0/4] SCT Write Same Hannes Reinecke
2016-08-25 15:28 ` Tejun Heo

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