From: Willy Tarreau <w@1wt.eu>
To: netdev@vger.kernel.org
Cc: thomas.petazzoni@free-electrons.com
Subject: [PATCH] net: mvneta: enable features before registering the driver
Date: Sat, 6 Apr 2013 20:47:01 +0200 [thread overview]
Message-ID: <20130406184701.GA16142@1wt.eu> (raw)
Hi,
I noticed that mvneta's tx-csum/sg were off until disabled then
enabled, which led me to think that something was not made in the
correct sequence. And indeed, setting the dev features _before_
registering the device works much better :-)
This patch is for master but may be backported to 3.8-stable as well,
which is where I first experienced the issue.
Thanks,
Willy
>From 005eb7594a4304eed5e9b427ca6b745260c9eded Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Mon, 11 Mar 2013 07:56:58 +0100
Subject: [PATCH] net: mvneta: enable features before registering the driver,
not after
It seems that the reason why the dev features were ignored was because
they were enabled after registeration.
Signed-off-by: Willy Tarreau <w@1wt.eu>
---
drivers/net/ethernet/marvell/mvneta.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index cd345b8..1e628ce 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2771,16 +2771,17 @@ static int mvneta_probe(struct platform_device *pdev)
netif_napi_add(dev, &pp->napi, mvneta_poll, pp->weight);
+ dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
+ dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ dev->vlan_features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ dev->priv_flags |= IFF_UNICAST_FLT;
+
err = register_netdev(dev);
if (err < 0) {
dev_err(&pdev->dev, "failed to register\n");
goto err_deinit;
}
- dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
- dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM;
- dev->priv_flags |= IFF_UNICAST_FLT;
-
netdev_info(dev, "mac: %pM\n", dev->dev_addr);
platform_set_drvdata(pdev, pp->dev);
--
1.7.12.2.21.g234cd45.dirty
next reply other threads:[~2013-04-06 18:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-06 18:47 Willy Tarreau [this message]
2013-04-07 10:11 ` [PATCH] net: mvneta: enable features before registering the driver Thomas Petazzoni
2013-04-08 16:16 ` David Miller
2013-04-09 5:46 ` Willy Tarreau
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