From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cornelia Huck Subject: Re: [PATCH 2/6] virtio: add context flag to find vqs Date: Thu, 30 Mar 2017 09:17:31 +0200 Message-ID: <20170330091731.1b54a2e1.cornelia.huck@de.ibm.com> References: <1490820507-8005-1-git-send-email-mst@redhat.com> <1490820507-8005-3-git-send-email-mst@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <1490820507-8005-3-git-send-email-mst@redhat.com> Sender: kvm-owner@vger.kernel.org List-Archive: List-Post: To: "Michael S. Tsirkin" Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, Heiko Carstens , John Fastabend , Sudeep Dutt , virtualization@lists.linux-foundation.org, Ashutosh Dixit , Martin Schwidefsky List-ID: On Wed, 29 Mar 2017 23:48:51 +0300 "Michael S. Tsirkin" wrote: > Allows maintaining extra context per vq. For ease of use, passing in > NULL is legal and disables the feature for all vqs. > > Signed-off-by: Michael S. Tsirkin > --- > drivers/misc/mic/vop/vop_main.c | 9 ++++++--- > drivers/s390/virtio/kvm_virtio.c | 6 ++++-- > drivers/s390/virtio/virtio_ccw.c | 7 ++++--- > drivers/virtio/virtio_mmio.c | 8 +++++--- > drivers/virtio/virtio_pci_common.c | 18 +++++++++++------- > drivers/virtio/virtio_pci_common.h | 4 +++- > drivers/virtio/virtio_pci_legacy.c | 4 +++- > drivers/virtio/virtio_pci_modern.c | 12 ++++++++---- > drivers/virtio/virtio_ring.c | 7 +++++-- > include/linux/virtio_config.h | 18 +++++++++++++++--- > include/linux/virtio_ring.h | 3 +++ > 11 files changed, 67 insertions(+), 29 deletions(-) This series really needs a cover letter, explaining the motivation for adding this context. >From what I understand, you want to track some length parameter in virtio-net. As you don't use indirect descriptors in that case, you want to use a context instead. Did I get this correctly?