* [PATCH 2.6.24-git3] firewire: fw-sbp2: relax SCSI DMA alignment
[not found] ` <1201373642.4387.0.camel@localhost.localdomain>
@ 2008-01-27 21:31 ` Stefan Richter
2008-01-27 21:32 ` [PATCH 2.6.24-git3] ieee1394: sbp2: " Stefan Richter
0 siblings, 1 reply; 2+ messages in thread
From: Stefan Richter @ 2008-01-27 21:31 UTC (permalink / raw)
To: linux1394-devel; +Cc: linux-scsi, linux-kernel
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
Not run-time tested yet.
drivers/firewire/fw-sbp2.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
Index: linux-2.6.24-git3/drivers/firewire/fw-sbp2.c
===================================================================
--- linux-2.6.24-git3.orig/drivers/firewire/fw-sbp2.c
+++ linux-2.6.24-git3/drivers/firewire/fw-sbp2.c
@@ -1309,11 +1309,8 @@ static int sbp2_scsi_slave_alloc(struct
sdev->allow_restart = 1;
- /*
- * Update the dma alignment (minimum alignment requirements for
- * start and end of DMA transfers) to be a sector
- */
- blk_queue_update_dma_alignment(sdev->request_queue, 511);
+ /* SBP-2 requires quadlet alignment of the data buffers. */
+ blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1);
if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36)
sdev->inquiry_len = 36;
--
Stefan Richter
-=====-==--- ---= ==-==
http://arcgraph.de/sr/
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH 2.6.24-git3] ieee1394: sbp2: relax SCSI DMA alignment
2008-01-27 21:31 ` [PATCH 2.6.24-git3] firewire: fw-sbp2: relax SCSI DMA alignment Stefan Richter
@ 2008-01-27 21:32 ` Stefan Richter
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Richter @ 2008-01-27 21:32 UTC (permalink / raw)
To: linux1394-devel; +Cc: linux-scsi, linux-kernel
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
Not run-time tested yet.
drivers/ieee1394/sbp2.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
Index: linux-2.6.24-git3/drivers/ieee1394/sbp2.c
===================================================================
--- linux-2.6.24-git3.orig/drivers/ieee1394/sbp2.c
+++ linux-2.6.24-git3/drivers/ieee1394/sbp2.c
@@ -1966,11 +1966,8 @@ static int sbp2scsi_slave_alloc(struct s
lu->sdev = sdev;
sdev->allow_restart = 1;
- /*
- * Update the dma alignment (minimum alignment requirements for
- * start and end of DMA transfers) to be a sector
- */
- blk_queue_update_dma_alignment(sdev->request_queue, 511);
+ /* SBP-2 requires quadlet alignment of the data buffers. */
+ blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1);
if (lu->workarounds & SBP2_WORKAROUND_INQUIRY_36)
sdev->inquiry_len = 36;
--
Stefan Richter
-=====-==--- ---= ==-==
http://arcgraph.de/sr/
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] ` <1201373642.4387.0.camel@localhost.localdomain>
2008-01-27 21:31 ` [PATCH 2.6.24-git3] firewire: fw-sbp2: relax SCSI DMA alignment Stefan Richter
2008-01-27 21:32 ` [PATCH 2.6.24-git3] ieee1394: sbp2: " Stefan Richter
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