linux-kernel - [PATCH libnvme v3 2/2] fabrics: Do not pass disable

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Date:   Tue,  8 Aug 2023 11:15:50 +0200
From:   Daniel Wagner <dwagner@...e.de>
To:     linux-nvme@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org,
        Caleb Sander <csander@...estorage.com>,
        Keith Busch <kbusch@...nel.org>,
        Sagi Grimberg <sagi@...mberg.me>,
        Daniel Wagner <dwagner@...e.de>
Subject: [PATCH libnvme v3 2/2] fabrics: Do not pass disable_sqflow if not supported

From: Sagi Grimberg <sagi@...mberg.me>

Only retry a connect attempt with disable_sqflow if the kernel
actually supports this option.

Reported-by: Sagi Grimberg <sagi@...mberg.me>
Signed-off-by: Daniel Wagner <dwagner@...e.de>
---
 src/nvme/fabrics.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/nvme/fabrics.c b/src/nvme/fabrics.c
index 9725eeb3cda8..11d99580072a 100644
--- a/src/nvme/fabrics.c
+++ b/src/nvme/fabrics.c
@@ -1031,8 +1031,11 @@ nvme_ctrl_t nvmf_connect_disc_entry(nvme_host_t h,
 		return NULL;
 	}
 
-	if (e->treq & NVMF_TREQ_DISABLE_SQFLOW)
+	if (e->treq & NVMF_TREQ_DISABLE_SQFLOW &&
+	    nvmf_check_option(h->r, disable_sqflow))
 		c->cfg.disable_sqflow = true;
+	else
+		c->cfg.disable_sqflow = false;
 
 	if (e->trtype == NVMF_TRTYPE_TCP &&
 	    (e->treq & NVMF_TREQ_REQUIRED ||
-- 
2.41.0