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nvmf/rdma: don't delete queue pair until it is empty.

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Change-Id: I6ee2f9fd02292cc03db6ed16858a9d2cc9c4de05
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/421167
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Seth Howell 2018-08-02 10:35:02 -07:00 committed by Jim Harris
parent 3113b446f1
commit e03aca3ce3
1 changed files with 29 additions and 15 deletions
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44
lib/nvmf/rdma.c
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@ -265,6 +265,8 @@ struct spdk_nvmf_rdma_qpair {
*/
struct ibv_qp_init_attr ibv_init_attr;
struct ibv_qp_attr ibv_attr;
bool qpair_disconnected;
};
struct spdk_nvmf_rdma_poller {
@ -483,9 +485,28 @@ spdk_nvmf_rdma_mgmt_channel_destroy(void *io_device, void *ctx_buf)
}
}
static int
spdk_nvmf_rdma_cur_rw_depth(struct spdk_nvmf_rdma_qpair *rqpair)
{
return rqpair->state_cntr[RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER] +
rqpair->state_cntr[RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST];
}
static int
spdk_nvmf_rdma_cur_queue_depth(struct spdk_nvmf_rdma_qpair *rqpair)
{
return rqpair->max_queue_depth -
rqpair->state_cntr[RDMA_REQUEST_STATE_FREE];
}
static void
spdk_nvmf_rdma_qpair_destroy(struct spdk_nvmf_rdma_qpair *rqpair)
{
if (spdk_nvmf_rdma_cur_queue_depth(rqpair)) {
rqpair->qpair_disconnected = true;
return;
}
if (rqpair->poller) {
TAILQ_REMOVE(&rqpair->poller->qpairs, rqpair, link);
}
@ -1177,20 +1198,6 @@ spdk_nvmf_rdma_request_parse_sgl(struct spdk_nvmf_rdma_transport *rtransport,
return -1;
}
static int
spdk_nvmf_rdma_cur_rw_depth(struct spdk_nvmf_rdma_qpair *rqpair)
{
return rqpair->state_cntr[RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER] +
rqpair->state_cntr[RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST];
}
static int
spdk_nvmf_rdma_cur_queue_depth(struct spdk_nvmf_rdma_qpair *rqpair)
{
return rqpair->max_queue_depth -
rqpair->state_cntr[RDMA_REQUEST_STATE_FREE];
}
static bool
spdk_nvmf_rdma_request_process(struct spdk_nvmf_rdma_transport *rtransport,
struct spdk_nvmf_rdma_request *rdma_req)
@ -1889,6 +1896,11 @@ spdk_nvmf_rdma_qpair_process_pending(struct spdk_nvmf_rdma_transport *rtransport
}
}
if (rqpair->qpair_disconnected) {
spdk_nvmf_rdma_qpair_destroy(rqpair);
return;
}
/* Do not process newly received commands if qp is in ERROR state,
* wait till the recovery is complete.
*/
@ -2368,7 +2380,9 @@ spdk_nvmf_rdma_request_complete(struct spdk_nvmf_request *req)
static void
spdk_nvmf_rdma_close_qpair(struct spdk_nvmf_qpair *qpair)
{
spdk_nvmf_rdma_qpair_destroy(SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair));
struct spdk_nvmf_rdma_qpair *rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
spdk_nvmf_rdma_qpair_destroy(rqpair);
}
static struct spdk_nvmf_rdma_request *