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authorFinn Thain <fthain@telegraphics.com.au>2016-01-03 06:05:25 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-01-07 03:42:56 +0100
commitff3d4578840fd96a50558edf02ca0178b9ebb652 (patch)
tree4ee34f3341f2eb092e95cc0bb728865675939423 /drivers/scsi/atari_NCR5380.c
parentncr5380: Always retry arbitration and selection (diff)
downloadlinux-ff3d4578840fd96a50558edf02ca0178b9ebb652.tar.xz
linux-ff3d4578840fd96a50558edf02ca0178b9ebb652.zip
ncr5380: Implement NCR5380_dma_xfer_len and remove LIMIT_TRANSFERSIZE macro
Follow the example of the atari_NCR5380.c core driver and adopt the NCR5380_dma_xfer_len() hook. Implement NCR5380_dma_xfer_len() for dtc.c and g_NCR5380.c to take care of the limitations of these cards. Keep the default for drivers using PSEUDO_DMA. Eliminate the unused macro LIMIT_TRANSFERSIZE. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/atari_NCR5380.c')
-rw-r--r--drivers/scsi/atari_NCR5380.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 64ee92090de3..59b378057198 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -2170,11 +2170,13 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
*/
#if defined(REAL_DMA)
- if (
#if !defined(CONFIG_SUN3)
- !cmd->device->borken &&
+ transfersize = 0;
+ if (!cmd->device->borken)
#endif
- (transfersize = NCR5380_dma_xfer_len(instance, cmd, phase)) >= DMA_MIN_SIZE) {
+ transfersize = NCR5380_dma_xfer_len(instance, cmd, phase);
+
+ if (transfersize >= DMA_MIN_SIZE) {
len = transfersize;
cmd->SCp.phase = phase;
if (NCR5380_transfer_dma(instance, &phase,