linux-kernel - [PATCH v0 3/6] nvme-fc: do not retry when auth fails or connection is refused

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Date: Fri, 16 Feb 2024 09:45:23 +0100
From: Daniel Wagner <dwagner@...e.de>
To: James Smart <james.smart@...adcom.com>
Cc: Keith Busch <kbusch@...nel.org>,
	Christoph Hellwig <hch@....de>,
	Sagi Grimberg <sagi@...mberg.me>,
	Hannes Reinecke <hare@...e.de>,
	linux-nvme@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Daniel Wagner <dwagner@...e.de>
Subject: [PATCH v0 3/6] nvme-fc: do not retry when auth fails or connection is refused

The is no point in retrying to connect if the authentication fails.

Connection refused is also issued from the authentication path, thus
also do not retry.

Signed-off-by: Daniel Wagner <dwagner@...e.de>
---
 drivers/nvme/host/fc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index a5b29e9ad342..b81046c9f171 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -3312,6 +3312,8 @@ nvme_fc_reconnect_or_delete(struct nvme_fc_ctrl *ctrl, int status)
 			ctrl->cnum, status);
 		if (status > 0 && (status & NVME_SC_DNR))
 			recon = false;
+		if (status == NVME_SC_AUTH_REQUIRED || status == -ECONNREFUSED)
+			recon = false;
 	} else if (time_after_eq(jiffies, rport->dev_loss_end))
 		recon = false;
 
-- 
2.43.0