Re: [PATCH v3 41/77] ncr5380: Replace redundant flags with FLAG_NO_DMA_FIXUP

From: Hannes Reinecke
Date: Tue Dec 22 2015 - 02:39:15 EST


On 12/22/2015 02:18 AM, Finn Thain wrote:
The flags DMA_WORKS_RIGHT, FLAG_NCR53C400 and FLAG_HAS_LAST_BYTE_SENT
all mean the same thing, i.e. the chip is not a 538[01]. (More recent
devices such as the 53C80 have a 'Last Byte Sent' bit in the Target
Command Register as well as other fixes for End-of-DMA errata.)

These flags have no additional meanings since previous cleanup patches
eliminated the NCR53C400 macro, moved g_NCR5380-specific code out of the
core driver and standardized interrupt handling.

Use the FLAG_NO_DMA_FIXUP flag to suppress End-of-DMA errata workarounds,
for those cards and drivers that make use of the TCR_LAST_BYTE_SENT bit.
Remove the old flags.

Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>

---
drivers/scsi/NCR5380.c | 68 +++++++++++++++--------------------------------
drivers/scsi/NCR5380.h | 4 --
drivers/scsi/dtc.c | 4 --
drivers/scsi/g_NCR5380.c | 2 -
4 files changed, 25 insertions(+), 53 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +49 911 74053 688
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