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From: amit.engel@dell.com
To: linux-nvme@lists.infradead.org, sagi@grimberg.me, kbusch@kernel.org
Cc: amit.engel@dell.com
Subject: [PATCH] nvmet: pass back cntlid on successful completion
Date: Thu,  5 Aug 2021 18:33:10 +0300	[thread overview]
Message-ID: <20210805153310.30986-1-amit.engel@dell.com> (raw)

From: Amit Engel <amit.engel@dell.com>

According to NVMe specification,
connect response dword 0 value is based on status code:
return cntlid for successful compeltion
return IPO and IATTR for connect invalid parameters

Signed-off-by: Amit Engel <amit.engel@dell.com>
---
 drivers/nvme/target/fabrics-cmd.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c
index 7d0f3523fdab..eaaf179bec82 100644
--- a/drivers/nvme/target/fabrics-cmd.c
+++ b/drivers/nvme/target/fabrics-cmd.c
@@ -120,6 +120,7 @@ static u16 nvmet_install_queue(struct nvmet_ctrl *ctrl, struct nvmet_req *req)
 	if (!sqsize) {
 		pr_warn("queue size zero!\n");
 		req->error_loc = offsetof(struct nvmf_connect_command, sqsize);
+		req->cqe->result.u32 = IPO_IATTR_CONNECT_SQE(sqsize);
 		ret = NVME_SC_CONNECT_INVALID_PARAM | NVME_SC_DNR;
 		goto err;
 	}
@@ -260,11 +261,12 @@ static void nvmet_execute_io_connect(struct nvmet_req *req)
 	}
 
 	status = nvmet_install_queue(ctrl, req);
-	if (status) {
-		/* pass back cntlid that had the issue of installing queue */
-		req->cqe->result.u16 = cpu_to_le16(ctrl->cntlid);
+
+	if (status)
 		goto out_ctrl_put;
-	}
+
+	/* pass back cntlid for successful completion */
+	req->cqe->result.u16 = cpu_to_le16(ctrl->cntlid);
 
 	pr_debug("adding queue %d to ctrl %d.\n", qid, ctrl->cntlid);
 
-- 
2.18.2


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             reply	other threads:[~2021-08-05 15:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05 15:33 amit.engel [this message]
2021-08-06 19:34 ` [PATCH] nvmet: pass back cntlid on successful completion Sagi Grimberg
  -- strict thread matches above, loose matches on Subject: below --
2021-08-08  6:20 amit.engel
2021-08-10 16:19 ` Christoph Hellwig

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