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nvme/rdma: send an rdma_disconnect during disconnect.

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The rdma_disconnect call triggers an RDMA_CM_EVENT_DISCONNECTED
message on the target side. The hope is that the target side will
reply with the same message in a reasonable amount of time. If the
target doesn't have that mechanism implemented, print an error message
and continue with the process.

Signed-off-by: Seth Howell <seth.howell@intel.com>
Change-Id: I164a3538714fa3adfc306ea0c88220ea710e7c39
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1879
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Seth Howell 2020-04-15 19:52:09 -07:00 committed by Tomasz Zawadzki
parent d76965f0fa
commit c3eac3435a
1 changed files with 8 additions and 0 deletions
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8
lib/nvme/nvme_rdma.c
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@ -1657,6 +1657,14 @@ nvme_rdma_ctrlr_disconnect_qpair(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme
}
if (rqpair->cm_id) {
rdma_disconnect(rqpair->cm_id);
if (qpair->ctrlr != NULL) {
if (nvme_rdma_process_event(rqpair, rctrlr->cm_channel, RDMA_CM_EVENT_DISCONNECTED)) {
SPDK_DEBUGLOG(SPDK_LOG_NVME, "Target did not respond to qpair disconnect.\n");
}
}
if (rqpair->cm_id->qp) {
rdma_destroy_qp(rqpair->cm_id);
}