scsi: ufs: introduce the capability and quirk for interrupt aggregation

Browse source

UFS HCI (Host Controller Interface) allows the transfer requests
interrupts to be aggregated to generate the single interrupt but
this can impact the performance. Hence introduce the capability which
gives choice to use the interrupt aggregation capability or not.
By default interrupt aggregation capability is kept disabled.

This change also introduces a quirk for broken interrupt aggregation
feature, as in some UFS controllers, this feature may not work.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

...

This commit is contained in:

Yaniv Gardi 2015-05-17 18:54:57 +03:00 • committed by James Bottomley

parent 45c44b5ff9

commit b852190e58

2 changed files with 36 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

19

drivers/scsi/ufs/ufshcd.c

View file

21

drivers/scsi/ufs/ufshcd.h

View file