From: Stephen Hemminger <shemminger@vyatta.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Joe Perches <joe@perches.com>, Jason Wang <jasowang@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Ian.Campbell@citrix.com, kvm@vger.kernel.org
Subject: Re: [PATCH RFC] tun: experimental zero copy tx support
Date: Mon, 14 May 2012 09:54:46 -0700 [thread overview]
Message-ID: <20120514095446.3ce307d2@nehalam.linuxnetplumber.net> (raw)
In-Reply-To: <20120513155206.GA26847@redhat.com>
On Sun, 13 May 2012 18:52:06 +0300
"Michael S. Tsirkin" <mst@redhat.com> wrote:
> + /* Userspace may produce vectors with count greater than
> + * MAX_SKB_FRAGS, so we need to linearize parts of the skb
> + * to let the rest of data to be fit in the frags.
> + */
Rather than complex partial code, just go through slow path for
requests with too many frags (or for really small requests).
Creating mixed skb's seems too easy to get wrong.
next prev parent reply other threads:[~2012-05-14 16:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-13 15:52 [PATCH RFC] tun: experimental zero copy tx support Michael S. Tsirkin
2012-05-14 16:54 ` Stephen Hemminger [this message]
2012-05-14 17:04 ` Michael S. Tsirkin
2012-05-14 19:02 ` Eric Dumazet
2012-05-14 19:14 ` Michael S. Tsirkin
2012-05-14 19:17 ` Michael S. Tsirkin
2012-05-14 19:21 ` Eric Dumazet
2012-05-14 19:31 ` Michael S. Tsirkin
2012-05-15 18:00 ` Shirley Ma
2012-05-14 17:34 ` Shirley Ma
2012-05-14 18:39 ` Michael S. Tsirkin
2012-05-16 15:16 ` Shirley Ma
2012-05-16 16:51 ` Michael S. Tsirkin
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