RDMA/bnxt_re: Fix the sideband buffer size handling for FW commands

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bnxt_qplib_rcfw_alloc_sbuf allocates 24 bytes and it is better to fit
on stack variables. This way we can avoid unwanted kmalloc call.
Call dma_alloc_coherent directly instead of wrapper
bnxt_qplib_rcfw_alloc_sbuf.

Also, FW expects the side buffer  needs to be aligned to
BNXT_QPLIB_CMDQE_UNITS(16B). So align the size to have the
extra padding bytes.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1691052326-32143-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Selvin Xavier 2023-08-03 01:45:23 -07:00 • committed by Leon Romanovsky

parent fd28c8a8c7

commit c9f3e4e1d8

3 changed files with 55 additions and 80 deletions

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38

drivers/infiniband/hw/bnxt_re/qplib_fp.c

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34

drivers/infiniband/hw/bnxt_re/qplib_rcfw.c

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63

drivers/infiniband/hw/bnxt_re/qplib_sp.c

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