netdev - RE: [PATCH net] qlge: remove NETIF_F

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Date:	Fri, 11 Jan 2013 21:48:52 +0000
From:	Jitendra Kalsaria <jitendra.kalsaria@...gic.com>
To:	Cong Wang <amwang@...hat.com>, netdev <netdev@...r.kernel.org>
CC:	Ron Mercer <ron.mercer@...gic.com>,
	Dept-Eng Linux Driver <Linux-Driver@...gic.com>,
	David Miller <davem@...emloft.net>
Subject: RE: [PATCH net] qlge: remove NETIF_F_TSO6 flag


>From: Cong Wang [mailto:amwang@...hat.com] 
>Sent: Friday, January 11, 2013 12:53 AM
>To: netdev
>Cc: Jitendra Kalsaria; Ron Mercer; Dept-Eng Linux Driver; David Miller; Cong Wang
>Subject: [PATCH net] qlge: remove NETIF_F_TSO6 flag
>
>It is werid that qlge driver supports NETIF_F_TSO6 but
>not NETIF_F_IPV6_CSUM. This also causes some kernel warning [1]
>when VLAN device setups on a qlge interface.
>
>I think the qlge hardware doesn't support NETIF_F_IPV6_CSUM,
>so we have to just remove the NETIF_F_TSO6 flag.
>
>After this patch, the TCP/IPv6 traffic becomes normal again,
>no kernel warnings any more.
>
>NOTE: I only tested it on 2.6.32 kernel, even if the upstream
>kernel could fix this automatically (it is hard to track NETIF*
>flags), removing it is also safe.
>
>1. https://bugzilla.redhat.com/show_bug.cgi?id=891839
>
>Cc: Jitendra Kalsaria <jitendra.kalsaria@...gic.com>
>Cc: Ron Mercer <ron.mercer@...gic.com>
>Cc: linux-driver@...gic.com
>Cc: David S. Miller <davem@...emloft.net>
>Signed-off-by: Cong Wang <amwang@...hat.com>

Thanks!
Acked-by: Jitendra Kalsaria <jitendra.kalsaria@...gic.com>


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