RDMA/hns: Fix incorrect post-send with direct wqe of wr-list in kernel space
driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7A2SA --------------------------------------------------------------- Currently, direct wqe is not supported for wr-list. RoCE driver excludes direct wqe for wr-list by judging whether the number of wr is 1. For a wr-list where the second wr is a length-error atomic wr, the post-send driver handles the first wr and adds 1 to the wr number counter firstly. While handling the second wr, the driver finds out a length error and terminates the wr handle process, remaining the counter at 1. This causes the driver mistakenly judges there is only 1 wr and thus enters the direct wqe process, carrying the current length-error atomic wqe. This patch fixes the error by adding a judgement whether the current wr is a bad wr. If so, use the normal doorbell process but not direct wqe despite the wr number is 1. Fixes: a77e1f87 ("RDMA/hns: Remove the condition of light load for posting DWQE") Signed-off-by: NJunxian Huang <huangjunxian6@hisilicon.com>
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