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nvme-rdma: Check remotely invalidated rkey matches our expected rkey 

If we got a remote invalidation on a bogus rkey, this is a protocol error.
Fail the connection in this case.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
hifive-unleashed-5.1
Sagi Grimberg 2017-11-23 17:35:24 +02:00 committed by Christoph Hellwig
parent 2f122e4f51
commit 3ef0279bb0
1 changed files with 7 additions and 2 deletions
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9
drivers/nvme/host/rdma.c
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@ -1334,8 +1334,13 @@ static int nvme_rdma_process_nvme_rsp(struct nvme_rdma_queue *queue,
req->status = cqe->status;
req->result = cqe->result;
if ((wc->wc_flags & IB_WC_WITH_INVALIDATE) &&
wc->ex.invalidate_rkey == req->mr->rkey) {
if (wc->wc_flags & IB_WC_WITH_INVALIDATE) {
if (unlikely(wc->ex.invalidate_rkey != req->mr->rkey)) {
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;
} else if (req->mr->need_inval) {
ret = nvme_rdma_inv_rkey(queue, req);