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nvmf/vfio_user: Post SQ delete cpl when qpair is destroyed

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This patch removes usage of cb_fn argument of
spdk_nvmf_qpair_disconnect API. Instead of relying
on the callback, post a completion on delete SQ
command when transport qpair_fini is called.

Signed-off-by: Alexey Marchuk <alexeymar@nvidia.com>
Change-Id: I68dec97ea94e89f48a8667da82f88b5e24fc0d88
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/17168
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
This commit is contained in:
Alexey Marchuk 2023-03-13 13:37:12 +01:00 committed by David Ko
parent e5e9f91113
commit d471bca4cf
1 changed files with 19 additions and 12 deletions
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31
lib/nvmf/vfio_user.c
View File

@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (C) 2020 Intel Corporation.
* Copyright (c) 2019-2022, Nutanix Inc. All rights reserved.
* Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* Copyright (c) 2022, 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*/
/*
@ -318,6 +318,8 @@ struct nvmf_vfio_user_sq {
*/
struct spdk_nvme_cmd create_io_sq_cmd;
struct vfio_user_delete_sq_ctx *delete_ctx;
/* Currently unallocated reqs. */
TAILQ_HEAD(, nvmf_vfio_user_req) free_reqs;
/* Poll group entry */
@ -2240,11 +2242,11 @@ out:
}
/* For ADMIN I/O DELETE SUBMISSION QUEUE the NVMf library will disconnect and free
* queue pair, so save the command in a context.
* queue pair, so save the command id and controller in a context.
*/
struct vfio_user_delete_sq_ctx {
struct nvmf_vfio_user_ctrlr *vu_ctrlr;
struct spdk_nvme_cmd delete_io_sq_cmd;
uint16_t cid;
};
static void
@ -2263,7 +2265,7 @@ vfio_user_qpair_delete_cb(void *cb_arg)
cb_arg);
} else {
post_completion(vu_ctrlr, admin_cq, 0, 0,
ctx->delete_io_sq_cmd.cid,
ctx->cid,
SPDK_NVME_SC_SUCCESS, SPDK_NVME_SCT_GENERIC);
free(ctx);
}
@ -2280,7 +2282,6 @@ handle_del_io_q(struct nvmf_vfio_user_ctrlr *ctrlr,
uint16_t sc = SPDK_NVME_SC_SUCCESS;
struct nvmf_vfio_user_sq *sq;
struct nvmf_vfio_user_cq *cq;
struct vfio_user_delete_sq_ctx *ctx;
SPDK_DEBUGLOG(nvmf_vfio, "%s: delete I/O %cqid:%d\n",
ctrlr_id(ctrlr), is_cq ? 'c' : 's',
@ -2309,21 +2310,20 @@ handle_del_io_q(struct nvmf_vfio_user_ctrlr *ctrlr,
* VM reboot or CC.EN change, so we have to delete it in all
* other cases.
*/
ctx = calloc(1, sizeof(*ctx));
if (!ctx) {
sq = ctrlr->sqs[cmd->cdw10_bits.delete_io_q.qid];
sq->delete_ctx = calloc(1, sizeof(*sq->delete_ctx));
if (!sq->delete_ctx) {
sct = SPDK_NVME_SCT_GENERIC;
sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
goto out;
}
ctx->vu_ctrlr = ctrlr;
ctx->delete_io_sq_cmd = *cmd;
sq = ctrlr->sqs[cmd->cdw10_bits.delete_io_q.qid];
sq->delete_ctx->vu_ctrlr = ctrlr;
sq->delete_ctx->cid = cmd->cid;
sq->sq_state = VFIO_USER_SQ_DELETED;
assert(ctrlr->cqs[sq->cqid]->cq_ref);
ctrlr->cqs[sq->cqid]->cq_ref--;
spdk_nvmf_qpair_disconnect(&sq->qpair, vfio_user_qpair_delete_cb, ctx);
spdk_nvmf_qpair_disconnect(&sq->qpair, NULL, NULL);
return 0;
}
@ -5325,11 +5325,14 @@ nvmf_vfio_user_close_qpair(struct spdk_nvmf_qpair *qpair,
struct nvmf_vfio_user_sq *sq;
struct nvmf_vfio_user_ctrlr *vu_ctrlr;
struct nvmf_vfio_user_endpoint *endpoint;
struct vfio_user_delete_sq_ctx *del_ctx;
assert(qpair != NULL);
sq = SPDK_CONTAINEROF(qpair, struct nvmf_vfio_user_sq, qpair);
vu_ctrlr = sq->ctrlr;
endpoint = vu_ctrlr->endpoint;
del_ctx = sq->delete_ctx;
sq->delete_ctx = NULL;
pthread_mutex_lock(&endpoint->lock);
TAILQ_REMOVE(&vu_ctrlr->connected_sqs, sq, tailq);
@ -5348,6 +5351,10 @@ nvmf_vfio_user_close_qpair(struct spdk_nvmf_qpair *qpair,
}
pthread_mutex_unlock(&endpoint->lock);
if (del_ctx) {
vfio_user_qpair_delete_cb(del_ctx);
}
if (cb_fn) {
cb_fn(cb_arg);
}