mbox series

[0/7] Handle DMA allocations in same 4G region.

Message ID 20210318091151.39349-1-suganath-prabu.subramani@broadcom.com (mailing list archive)
Headers show
Series Handle DMA allocations in same 4G region. | expand

Message

Suganath Prabu S March 18, 2021, 9:11 a.m. UTC 
According to MPI Specification PCIe SGL, Sense pool, Chain pool,
reply pool, reply post pool & reply post array buffers should not cross
4GB boundary. So while allocating these buffers, if any of these
pool buffer crosses the 4GB boundary then,
* Release the already allocated memory pools and
* Reallocate them by changing the DMA coherent mask to 32 bit.

Patch V2:
Fixed inconsistent indenting warning in patch 0002 

Suganath Prabu S (7):
  mpt3sas: Handle PCIe sgl's in same 4G region.
  mpt3sas: Handle chain buffer DMA allocations in same 4G region
  mpt3sas: Handle sense buffer DMA allocations in same 4G region
  mpt3sas: Handle reply pool DMA allocations in same 4G region
  mpt3sas: Handle Reply post queue DMA allocations in same 4G region
  mpt3sas: Handle reply post array DMA allocations in same 4G region
  mpt3sas : Update driver version to 37.101.00.00

 drivers/scsi/mpt3sas/mpt3sas_base.c | 503 ++++++++++++++++++----------
 drivers/scsi/mpt3sas/mpt3sas_base.h |   5 +-
 2 files changed, 332 insertions(+), 176 deletions(-)