From: David Miller <davem@davemloft.net>
To: vkuznets@redhat.com
Cc: gnomes@lxorguk.ukuu.org.uk, eric.dumazet@gmail.com,
netdev@vger.kernel.org, haiyangz@microsoft.com,
linux-kernel@vger.kernel.org, tom@herbertland.com,
devel@linuxdriverproject.org
Subject: Re: [PATCH net-next] hv_netvsc: use skb_get_hash() instead of a homegrown implementation
Date: Mon, 25 Jan 2016 10:53:23 -0800 (PST) [thread overview]
Message-ID: <20160125.105323.453007330881616541.davem@davemloft.net> (raw)
In-Reply-To: <1453734041-20394-1-git-send-email-vkuznets@redhat.com>
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Mon, 25 Jan 2016 16:00:41 +0100
> Recent changes to 'struct flow_keys' (e.g commit d34af823ff40 ("net: Add
> VLAN ID to flow_keys")) introduced a performance regression in netvsc
> driver. Is problem is, however, not the above mentioned commit but the
> fact that netvsc_set_hash() function did some assumptions on the struct
> flow_keys data layout and this is wrong.
>
> Get rid of netvsc_set_hash() by switching to skb_get_hash(). This change
> will also imply switching to Jenkins hash from the currently used Toeplitz
> but it seems there is no good excuse for Toeplitz to stay.
>
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Applied.
prev parent reply other threads:[~2016-01-25 18:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 15:00 [PATCH net-next] hv_netvsc: use skb_get_hash() instead of a homegrown implementation Vitaly Kuznetsov
2016-01-25 17:09 ` Eric Dumazet
2016-01-25 18:53 ` David Miller [this message]
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