From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH v2 2/3] nvme-rdma: don't complete requests before a send work request has completed
Date: Mon, 20 Nov 2017 12:16:40 +0100 [thread overview]
Message-ID: <20171120111640.GA32043@lst.de> (raw)
In-Reply-To: <df9c9545-7c00-328b-9f98-535d8e889715@grimberg.me>
> + if (wc->wc_flags & IB_WC_WITH_INVALIDATE) {
> + if (unlikely(wc->ex.invalidate_rkey == req->mr->rkey)) {
The == here should be a != I think.
> + dev_err(queue->ctrl->ctrl.device,
> + "Bogus remote invalidation for rkey %#x\n",
> + req->mr->rkey);
> + nvme_rdma_error_recovery(queue->ctrl);
> + }
> req->mr->need_inval = false;
> - refcount_dec(&req->ref);
> } else if (req->mr->need_inval) {
> ret = nvme_rdma_inv_rkey(queue, req);
> if (unlikely(ret < 0)) {
> @@ -1347,6 +1349,8 @@ static int nvme_rdma_process_nvme_rsp(struct
> nvme_rdma_queue *queue,
> req->mr->rkey, ret);
> nvme_rdma_error_recovery(queue->ctrl);
> }
> + /* return here as we can't really end the request */
> + return 0;
Maybe replace the comment with
/* the local invalidation completion will end the request */
Otherwise this looks fine to me.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nvme-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Max Gurtuvoy <maxg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH v2 2/3] nvme-rdma: don't complete requests before a send work request has completed
Date: Mon, 20 Nov 2017 12:16:40 +0100 [thread overview]
Message-ID: <20171120111640.GA32043@lst.de> (raw)
In-Reply-To: <df9c9545-7c00-328b-9f98-535d8e889715-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
> + if (wc->wc_flags & IB_WC_WITH_INVALIDATE) {
> + if (unlikely(wc->ex.invalidate_rkey == req->mr->rkey)) {
The == here should be a != I think.
> + dev_err(queue->ctrl->ctrl.device,
> + "Bogus remote invalidation for rkey %#x\n",
> + req->mr->rkey);
> + nvme_rdma_error_recovery(queue->ctrl);
> + }
> req->mr->need_inval = false;
> - refcount_dec(&req->ref);
> } else if (req->mr->need_inval) {
> ret = nvme_rdma_inv_rkey(queue, req);
> if (unlikely(ret < 0)) {
> @@ -1347,6 +1349,8 @@ static int nvme_rdma_process_nvme_rsp(struct
> nvme_rdma_queue *queue,
> req->mr->rkey, ret);
> nvme_rdma_error_recovery(queue->ctrl);
> }
> + /* return here as we can't really end the request */
> + return 0;
Maybe replace the comment with
/* the local invalidation completion will end the request */
Otherwise this looks fine to me.
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next prev parent reply other threads:[~2017-11-20 11:16 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-08 10:06 [PATCH v2 0/3] Fix request completion holes Sagi Grimberg
2017-11-08 10:06 ` Sagi Grimberg
2017-11-08 10:06 ` [PATCH v2 1/3] nvme-rdma: don't suppress send completions Sagi Grimberg
2017-11-08 10:06 ` Sagi Grimberg
2017-11-09 9:18 ` Christoph Hellwig
2017-11-09 9:18 ` Christoph Hellwig
2017-11-09 11:08 ` Sagi Grimberg
2017-11-09 11:08 ` Sagi Grimberg
2017-11-20 8:18 ` Christoph Hellwig
2017-11-20 8:18 ` Christoph Hellwig
2017-11-20 8:33 ` Sagi Grimberg
2017-11-20 8:33 ` Sagi Grimberg
2017-11-20 9:32 ` Christoph Hellwig
2017-11-20 9:32 ` Christoph Hellwig
2017-11-08 10:06 ` [PATCH v2 2/3] nvme-rdma: don't complete requests before a send work request has completed Sagi Grimberg
2017-11-08 10:06 ` Sagi Grimberg
2017-11-09 9:21 ` Christoph Hellwig
2017-11-09 9:21 ` Christoph Hellwig
2017-11-09 11:14 ` Sagi Grimberg
2017-11-09 11:14 ` Sagi Grimberg
2017-11-20 8:31 ` Christoph Hellwig
2017-11-20 8:31 ` Christoph Hellwig
2017-11-20 8:37 ` Sagi Grimberg
2017-11-20 8:37 ` Sagi Grimberg
2017-11-20 8:41 ` Christoph Hellwig
2017-11-20 8:41 ` Christoph Hellwig
2017-11-20 9:04 ` Sagi Grimberg
2017-11-20 9:04 ` Sagi Grimberg
2017-11-20 9:28 ` Sagi Grimberg
2017-11-20 9:28 ` Sagi Grimberg
2017-11-20 10:49 ` Christoph Hellwig
2017-11-20 10:49 ` Christoph Hellwig
2017-11-20 11:12 ` Sagi Grimberg
2017-11-20 11:12 ` Sagi Grimberg
2017-11-20 11:16 ` Christoph Hellwig [this message]
2017-11-20 11:16 ` Christoph Hellwig
2017-11-08 10:06 ` [PATCH v2 3/3] nvme-rdma: wait for local invalidation before completing a request Sagi Grimberg
2017-11-08 10:06 ` Sagi Grimberg
2017-11-09 9:39 ` Christoph Hellwig
2017-11-09 9:39 ` Christoph Hellwig
2017-11-13 22:10 ` [PATCH v2 0/3] Fix request completion holes Doug Ledford
2017-11-13 22:10 ` Doug Ledford
2017-11-16 15:39 ` Sagi Grimberg
2017-11-16 15:39 ` Sagi Grimberg
2017-11-16 15:58 ` Doug Ledford
2017-11-16 15:58 ` Doug Ledford
2017-11-20 7:37 ` Christoph Hellwig
2017-11-20 7:37 ` Christoph Hellwig
2017-11-20 8:33 ` Sagi Grimberg
2017-11-20 8:33 ` Sagi Grimberg
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