From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2] virtio_net: lower limit on buffer size Date: Fri, 02 Jun 2017 14:32:54 -0400 (EDT) Message-ID: <20170602.143254.1054389009843287751.davem@davemloft.net> References: <1496415192-17031-1-git-send-email-mst@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1496415192-17031-1-git-send-email-mst@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: mst@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, bfields@fieldses.org, mpatocka@redhat.com List-Id: virtualization@lists.linuxfoundation.org From: "Michael S. Tsirkin" Date: Fri, 2 Jun 2017 17:54:33 +0300 > commit d85b758f72b0 ("virtio_net: fix support for small rings") > was supposed to increase the buffer size for small rings but had an > unintentional side effect of decreasing it for large rings. This seems > to break some setups - it's not yet clear why, but increasing buffer > size back to what it was before helps. > > Fixes: d85b758f72b0 ("virtio_net: fix support for small rings") > Reported-by: Mikulas Patocka > Reported-by: "J. Bruce Fields" > Tested-by: Mikulas Patocka > Tested-by: "J. Bruce Fields" > Signed-off-by: Michael S. Tsirkin > --- > > Patch tested, pls merge. > > changes from v2: > commit log tweaks to address comments by Sergei Shtylyov Applied, thanks Michael.