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From: Rahul Lakkireddy <>
Subject: [dpdk-stable] [PATCH] net/cxgbe: avoid sending link params change from VF
Date: Mon, 27 Sep 2021 23:26:30 +0530	[thread overview]
Message-ID: <> (raw)

From: Nikhil Vasoya <>

VFs are not allowed to change physical link params when a port
module change is detected. The firmware already returns appropriate
permission error when VF tries to change physical link params. But,
make sure to avoid sending the command to firmware from VF in the
first place and prevent flooding firmware debug logs with permission

Fixes: a83041b1e998 ("net/cxgbe: rework and simplify link handling")

Signed-off-by: Nikhil Vasoya <>
Signed-off-by: Rahul Lakkireddy <>
 drivers/net/cxgbe/base/t4_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c
index b60bcdc3bc..cdcd7e5510 100644
--- a/drivers/net/cxgbe/base/t4_hw.c
+++ b/drivers/net/cxgbe/base/t4_hw.c
@@ -4597,7 +4597,7 @@ static void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl)
 		t4_os_link_changed(adapter, pi->pidx);
-	if (mod_changed) {
+	if (mod_changed != 0 && is_pf4(adapter) != 0) {
 		u32 mod_caps = lc->admin_caps;
 		int ret;

             reply	other threads:[~2021-09-27 17:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-27 17:56 Rahul Lakkireddy [this message]
2021-09-30 15:45 ` [dpdk-stable] [dpdk-dev] " Ferruh Yigit

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