[PATCH v4 0/2] mpt3sas: Additional retries when reading specific registers

[Ranjan Kumar <ranjan.kumar@broadcom.com>]

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Doorbell and Host diagnostic registers could return 0 even
after 3 retries and that leads to occasional resets of the
controllers, hence increased the retry count to thirty.

v1->v2:
-added a new patch for volatile as suggested by Greg KH.
-renamed macro as suggested by Damien Le Moal.

v2->v3:
-Modified patch description with more details.

v3->v4:
- Code simplification

Ranjan Kumar (2):
  mpt3sas: Perform additional retries if Doorbell read returns 0
  mpt3sas: Removing volatile qualifier

 drivers/scsi/mpt3sas/mpi/mpi2.h     |  2 +-
 drivers/scsi/mpt3sas/mpt3sas_base.c | 50 ++++++++++++++++++++---------
 drivers/scsi/mpt3sas/mpt3sas_base.h |  3 +-
 3 files changed, 38 insertions(+), 17 deletions(-)

-- 
2.31.1


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