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| author | Jihua Tao <taojihua4@huawei.com> | 2020-03-26 11:40:16 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-03-29 11:04:21 -0300 |
| commit | 9d04d56c47b11962391b96202e181042941e30b3 (patch) | |
| tree | e102d9cc9880651fcbc15ac9af4be2e186c44155 /drivers/infiniband | |
| parent | dbdf8909d03d8ab23dc7a6d6edce0791d6a9055c (diff) | |
| download | linux-stable-9d04d56c47b11962391b96202e181042941e30b3.tar.gz linux-stable-9d04d56c47b11962391b96202e181042941e30b3.tar.bz2 linux-stable-9d04d56c47b11962391b96202e181042941e30b3.zip | |
RDMA/hns: Reduce PFC frames in congestion scenarios
The original value means sending 16 packets at a time, and it should be
configured to 0 which means sending 1 packet instead. It is modified to
reduce the number of PFC frames to make sure the performance meets
expectations when flow control is enabled on hip08.
Link: https://lore.kernel.org/r/1585194018-4381-2-git-send-email-liweihang@huawei.com
Signed-off-by: Jihua Tao <taojihua4@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 7eceeea9ccea..c3316672b70e 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3928,7 +3928,7 @@ static int modify_qp_init_to_rtr(struct ib_qp *ibqp, /* mtu*(2^LP_PKTN_INI) should not bigger than 1 message length 64kb */ roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, - V2_QPC_BYTE_56_LP_PKTN_INI_S, 4); + V2_QPC_BYTE_56_LP_PKTN_INI_S, 0); roce_set_field(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, V2_QPC_BYTE_56_LP_PKTN_INI_S, 0); |