[PATCH 05/11] nvmet: Add install_queue callout
From: Sagi Grimberg <hidden>
Date: 2018-11-15 17:17:07
Also in:
linux-block, linux-nvme
Subsystem:
nvm express target driver, the rest · Maintainers:
Christoph Hellwig, Sagi Grimberg, Chaitanya Kulkarni, Linus Torvalds
nvmet-tcp will implement it to allocate queue commands which are only known at nvmf connect time (sq size). Signed-off-by: Sagi Grimberg <redacted> --- drivers/nvme/target/fabrics-cmd.c | 9 +++++++++ drivers/nvme/target/nvmet.h | 1 + 2 files changed, 10 insertions(+)
diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c
index 1f05d8507e35..a84668e8939c 100644
--- a/drivers/nvme/target/fabrics-cmd.c
+++ b/drivers/nvme/target/fabrics-cmd.c@@ -117,6 +117,15 @@ static u16 nvmet_install_queue(struct nvmet_ctrl *ctrl, struct nvmet_req *req) nvmet_sq_setup(ctrl, req->sq, qid, sqsize + 1, !!(c->cattr & NVME_CONNECT_DISABLE_SQFLOW)); + if (ctrl->ops->install_queue) { + int ret = ctrl->ops->install_queue(req->sq); + if (ret) { + pr_err("failed to install queue %d cntlid %d ret %d\n", + qid, ret, ctrl->cntlid); + return NVME_SC_CONNECT_INVALID_PARAM | NVME_SC_DNR; + } + } + return 0; }
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index abc603fa725d..1362afe6e0b3 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h@@ -281,6 +281,7 @@ struct nvmet_fabrics_ops { void (*delete_ctrl)(struct nvmet_ctrl *ctrl); void (*disc_traddr)(struct nvmet_req *req, struct nvmet_port *port, char *traddr); + int (*install_queue)(struct nvmet_sq *nvme_sq); }; #define NVMET_MAX_INLINE_BIOVEC 8
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2.17.1