From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
To: Tom Lendacky <thomas.lendacky@amd.com>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org
Cc: Sudheesh.Mavila@amd.com,
Shyam Sundar S K <Shyam-sundar.S-k@amd.com>,
Sudheesh Mavila <sudheesh.mavila@amd.com>
Subject: [PATCH 2/4] amd-xgbe: Fix NETDEV WATCHDOG transmit queue timeout warning
Date: Fri, 12 Feb 2021 23:30:08 +0530 [thread overview]
Message-ID: <20210212180010.221129-3-Shyam-sundar.S-k@amd.com> (raw)
In-Reply-To: <20210212180010.221129-1-Shyam-sundar.S-k@amd.com>
Current driver calls the netif_carrier_off() during the later point in
time to tear down the link which causes the netdev watchdog to timeout.
Calling netif_carrier_off() immediately after netif_tx_stop_all_queues()
would avoids the warning.
------------[ cut here ]------------
NETDEV WATCHDOG: enp3s0f2 (amd-xgbe): transmit queue 0 timed out
WARNING: CPU: 3 PID: 0 at net/sched/sch_generic.c:461 dev_watchdog+0x20d/0x220
Modules linked in: amd_xgbe(E) amd-xgbe 0000:03:00.2 enp3s0f2: Link is Down
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G E
Hardware name: AMD Bilby-RV2/Bilby-RV2, BIOS RBB1202A 10/18/2019
RIP: 0010:dev_watchdog+0x20d/0x220
Code: 00 49 63 4e e0 eb 92 4c 89 e7 c6 05 c6 e2 c1 00 01 e8 e7 ce fc ff 89 d9 48
RSP: 0018:ffff90cfc28c3e88 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000006
RDX: 0000000000000007 RSI: 0000000000000086 RDI: ffff90cfc28d63c0
RBP: ffff90cfb977845c R08: 0000000000000050 R09: 0000000000196018
R10: ffff90cfc28c3ef8 R11: 0000000000000000 R12: ffff90cfb9778000
R13: 0000000000000003 R14: ffff90cfb9778480 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff90cfc28c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f240ff2d9d0 CR3: 00000001e3e0a000 CR4: 00000000003406e0
Call Trace:
<IRQ>
? pfifo_fast_reset+0x100/0x100
call_timer_fn+0x2b/0x130
run_timer_softirq+0x3e8/0x440
? enqueue_hrtimer+0x39/0x90
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 1 +
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 2709a2db5657..395eb0b52680 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -1368,6 +1368,7 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
return;
netif_tx_stop_all_queues(netdev);
+ netif_carrier_off(pdata->netdev);
xgbe_stop_timers(pdata);
flush_workqueue(pdata->dev_workqueue);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 93ef5a30cb8d..19ee4db0156d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -1396,7 +1396,6 @@ static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
pdata->phy_if.phy_impl.stop(pdata);
pdata->phy.link = 0;
- netif_carrier_off(pdata->netdev);
xgbe_phy_adjust_link(pdata);
}
--
2.25.1
next prev parent reply other threads:[~2021-02-12 18:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-12 18:00 [PATCH 0/4] Bug fixes to amd-xgbe driver Shyam Sundar S K
2021-02-12 18:00 ` [PATCH 1/4] amd-xgbe: Reset the PHY rx data path when mailbox command timeout Shyam Sundar S K
2021-02-12 18:43 ` Tom Lendacky
2021-02-12 18:00 ` Shyam Sundar S K [this message]
2021-02-12 18:48 ` [PATCH 2/4] amd-xgbe: Fix NETDEV WATCHDOG transmit queue timeout warning Tom Lendacky
2021-02-12 18:00 ` [PATCH 3/4] amd-xgbe: Reset link when the link never comes back Shyam Sundar S K
2021-02-12 19:01 ` Tom Lendacky
2021-02-12 18:00 ` [PATCH 4/4] amd-xgbe: Fix network fluctuations when using 1G BELFUSE SFP Shyam Sundar S K
2021-02-12 18:56 ` Florian Fainelli
2021-02-12 19:05 ` Tom Lendacky
2021-02-12 21:14 ` Heiner Kallweit
2021-02-12 18:57 ` [PATCH 0/4] Bug fixes to amd-xgbe driver Florian Fainelli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210212180010.221129-3-Shyam-sundar.S-k@amd.com \
--to=shyam-sundar.s-k@amd.com \
--cc=Sudheesh.Mavila@amd.com \
--cc=davem@davemloft.net \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=thomas.lendacky@amd.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).