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[v2,for-next,0/6] RDMA/bnxt_re: driver update for supporting low latency push

Message ID 1682450993-17711-1-git-send-email-selvin.xavier@broadcom.com (mailing list archive)
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Series RDMA/bnxt_re: driver update for supporting low latency push | expand

Message

Selvin Xavier April 25, 2023, 7:29 p.m. UTC 
The series aims to add support for Low latency push path in
some of the bnxt devices. The low latency implementation is
supported only for the user applications. Also, the code
is modified to use  common mmap helper functions exported
by IB core. 

User library changes are getting submitted in the pull request
https://github.com/linux-rdma/rdma-core/pull/1321

Please review.

Thanks,
Selvin Xavier

v1 - v2:
  - Fixes the review comments from Leon and Jason
  - As suggested by Jason, implements the new uapi
    driver definitions for allocating pages in the
    driver and return the cookie for mmap

Selvin Xavier (6):
  RDMA/bnxt_re: Use the common mmap helper functions
  RDMA/bnxt_re: Add disassociate ucontext support
  RDMA/bnxt_re: Query function capabilities from firmware
  RDMA/bnxt_re: Move the interface version to chip context structure
  RDMA/bnxt_re: Reorg the bar mapping
  RDMA/bnxt_re: Enable low latency push

 drivers/infiniband/hw/bnxt_re/bnxt_re.h    |   3 +
 drivers/infiniband/hw/bnxt_re/ib_verbs.c   | 265 ++++++++++++++++++++++++++---
 drivers/infiniband/hw/bnxt_re/ib_verbs.h   |  19 +++
 drivers/infiniband/hw/bnxt_re/main.c       | 117 ++++++++++++-
 drivers/infiniband/hw/bnxt_re/qplib_fp.c   |  14 +-
 drivers/infiniband/hw/bnxt_re/qplib_rcfw.c |   2 +-
 drivers/infiniband/hw/bnxt_re/qplib_rcfw.h |   1 +
 drivers/infiniband/hw/bnxt_re/qplib_res.c  | 177 ++++++++++++-------
 drivers/infiniband/hw/bnxt_re/qplib_res.h  |  33 +++-
 drivers/infiniband/hw/bnxt_re/qplib_sp.c   |   3 +
 drivers/infiniband/hw/bnxt_re/qplib_sp.h   |   1 +
 include/uapi/rdma/bnxt_re-abi.h            |  32 ++++
 12 files changed, 558 insertions(+), 109 deletions(-)

Comments

Leon Romanovsky April 26, 2023, 7:19 a.m. UTC | #1 
On Tue, Apr 25, 2023 at 12:29:47PM -0700, Selvin Xavier wrote:
> The series aims to add support for Low latency push path in
> some of the bnxt devices. The low latency implementation is
> supported only for the user applications. Also, the code
> is modified to use  common mmap helper functions exported
> by IB core. 
> 
> User library changes are getting submitted in the pull request
> https://github.com/linux-rdma/rdma-core/pull/1321
> 
> Please review.
> 
> Thanks,
> Selvin Xavier
> 

We are in merge window now.

Thanks