Re: [PATCH] mptsas: Increase MPT_SAS_CAN_QUEUE

[Richard Scobie <richard@sauce.co.nz>]

  Darrick J. Wong wrote:

 > It seems that can_queue on mptsas controllers is clamped to 128 even 
  > though the hardware can have much larger queues.  Clamp to a higher
 > value to utilize the hardware more effectively--with a large number 
of > disks I see contention for queue slots, and with the higher clamp I
 > don't.
 >
 > Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
 > ---
 >
 > drivers/message/fusion/mptbase.h |    2 +-
 > 1 files changed, 1 insertions(+), 1 deletions(-)
 >
 > diff --git a/drivers/message/fusion/mptbase.h
 > b/drivers/message/fusion/mptbase.h
 > index fe90233..5d8c57e 100644
 > --- a/drivers/message/fusion/mptbase.h
 > +++ b/drivers/message/fusion/mptbase.h
 > @@ -159,7 +159,7 @@
 >   */
 >  #define MPT_FC_CAN_QUEUE	1024
 > #define MPT_SCSI_CAN_QUEUE	127
 > -#define MPT_SAS_CAN_QUEUE	127
 > +#define MPT_SAS_CAN_QUEUE	511
 >
 > /*
 >  * Set the MAX_SGE value based on user input.

Any comment from the LSI maintainers on this change?

Regards,

Richard