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| author | Eddie Wai <eddie.wai@broadcom.com> | 2017-06-14 03:26:23 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-06-14 13:01:57 -0400 |
| commit | 9152e0b722b29092115da3bfbf63d26be1a461df (patch) | |
| tree | f6f0cee01978894044a2f652c84297a8b0fd5363 /drivers/infiniband/hw/bnxt_re/qplib_sp.h | |
| parent | cc1ec769b87c7dea9092fb537c512e0b6b7a5dac (diff) | |
| download | linux-9152e0b722b29092115da3bfbf63d26be1a461df.tar.gz linux-9152e0b722b29092115da3bfbf63d26be1a461df.tar.bz2 linux-9152e0b722b29092115da3bfbf63d26be1a461df.zip | |
RDMA/bnxt_re: HW workarounds for handling specific conditions
This patch implements the following HW workarounds
1. The SQ depth needs to be augmented by 128 + 1 to avoid running
into an Out of order CQE issue
2. Workaround to handle the problem where the HW fast path engine continues
to access DMA memory in retranmission mode even after the WQE has
already been completed. If the HW reports this condition, driver detects
it and posts a Fence WQE. The driver stops reporting the completions
to stack until it receives completion for Fence WQE.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_sp.h')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_sp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h index 1442a617e968..a543f959098b 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h @@ -40,6 +40,8 @@ #ifndef __BNXT_QPLIB_SP_H__ #define __BNXT_QPLIB_SP_H__ +#define BNXT_QPLIB_RESERVED_QP_WRS 128 + struct bnxt_qplib_dev_attr { char fw_ver[32]; u16 max_sgid; |