diff options
Diffstat (limited to 'debian/patches/bugfix/arm64/huawei-taishan/0029-RDMA-hns-Add-constraint-on-the-setting-of-local-ACK-.patch')
| -rw-r--r-- | debian/patches/bugfix/arm64/huawei-taishan/0029-RDMA-hns-Add-constraint-on-the-setting-of-local-ACK-.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/debian/patches/bugfix/arm64/huawei-taishan/0029-RDMA-hns-Add-constraint-on-the-setting-of-local-ACK-.patch b/debian/patches/bugfix/arm64/huawei-taishan/0029-RDMA-hns-Add-constraint-on-the-setting-of-local-ACK-.patch new file mode 100644 index 000000000..48e2022bd --- /dev/null +++ b/debian/patches/bugfix/arm64/huawei-taishan/0029-RDMA-hns-Add-constraint-on-the-setting-of-local-ACK-.patch @@ -0,0 +1,43 @@ +From 84193e72c505286e4681b3c566c64eea3e25f7fd Mon Sep 17 00:00:00 2001 +From: Lijun Ou <oulijun@huawei.com> +Date: Wed, 12 Dec 2018 17:49:08 +0800 +Subject: [PATCH 29/31] RDMA/hns: Add constraint on the setting of local ACK + timeout +Origin: https://git.kernel.org/linus/44754b95dd35ee07c462b5425ae9c4cde8c7e7c8 + +According to IB protocol, local ACK timeout shall be a 5 bit +value. Currently, hip08 could not support the possible max value 31. Fail +the request in this case. + +Signed-off-by: Yixian Liu <liuyixian@huawei.com> +Signed-off-by: Lijun Ou <oulijun@huawei.com> +Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> +--- + drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +Index: linux/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +=================================================================== +--- linux.orig/drivers/infiniband/hw/hns/hns_roce_hw_v2.c ++++ linux/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +@@ -3398,10 +3398,16 @@ static int modify_qp_rtr_to_rts(struct i + V2_QPC_BYTE_212_LSN_S, 0); + + if (attr_mask & IB_QP_TIMEOUT) { +- roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, +- V2_QPC_BYTE_28_AT_S, attr->timeout); +- roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_AT_M, +- V2_QPC_BYTE_28_AT_S, 0); ++ if (attr->timeout < 31) { ++ roce_set_field(context->byte_28_at_fl, ++ V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S, ++ attr->timeout); ++ roce_set_field(qpc_mask->byte_28_at_fl, ++ V2_QPC_BYTE_28_AT_M, V2_QPC_BYTE_28_AT_S, ++ 0); ++ } else { ++ dev_warn(dev, "Local ACK timeout shall be 0 to 30.\n"); ++ } + } + + roce_set_field(context->byte_172_sq_psn, V2_QPC_BYTE_172_SQ_CUR_PSN_M, |