similar to: [PATCH net] virtio-net: unbreak cusmed packet for small buffer XDP

On 2017?07?04? 01:03, Michael S. Tsirkin wrote: > On Wed, Jun 28, 2017 at 08:05:06PM +0800, Jason Wang wrote: >> >> On 2017?06?28? 12:01, Michael S. Tsirkin wrote: >>> On Wed, Jun 28, 2017 at 11:40:30AM +0800, Jason Wang wrote: >>>> On 2017?06?28? 11:31, Michael S. Tsirkin wrote: >>>>> On Wed, Jun 28, 2017 at 10:45:18AM +0800, Jason Wang wrote:

We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we can receive partial csumed packets with metadata kept in the vnet_hdr. This may have several side effects: - It could be overridden by header adjustment, thus is might be not correct after XDP processing. - There's no way to pass such metadata information through XDP_REDIRECT to another driver. - XDP does not

We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we can receive partial csumed packets with metadata kept in the vnet_hdr. This may have several side effects: - It could be overridden by header adjustment, thus is might be not correct after XDP processing. - There's no way to pass such metadata information through XDP_REDIRECT to another driver. - XDP does not

Merry Xmas and a Happy New year to all: This series tries to fixes several issues for virtio-net XDP which could be categorized into several parts: - fix several issues during XDP linearizing - allow csumed packet to work for XDP_PASS - make EWMA rxbuf size estimation works for XDP - forbid XDP when GUEST_UFO is support - remove big packet XDP support - add XDP support or small buffer Please

Merry Xmas and a Happy New year to all: This series tries to fixes several issues for virtio-net XDP which could be categorized into several parts: - fix several issues during XDP linearizing - allow csumed packet to work for XDP_PASS - make EWMA rxbuf size estimation works for XDP - forbid XDP when GUEST_UFO is support - remove big packet XDP support - add XDP support or small buffer Please

We drop csumed packet when do XDP for packets. This breaks XDP_PASS when GUEST_CSUM is supported. Fix this by allowing csum flag to be set. With this patch, simple TCP works for XDP_PASS. Cc: John Fastabend <john.r.fastabend at intel.com> Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/net/virtio_net.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff

On Wed, Jul 19, 2017 at 04:54:49PM +0800, Jason Wang wrote: > Current XDP implementation wants guest offloads feature to be disabled > on device. This is inconvenient and means guest can't benefit from > offloads if XDP is not used. This patch tries to address this > limitation by disabling the offloads on demand through control guest > offloads. Guest offloads will be disabled

On Wed, Jul 19, 2017 at 04:54:49PM +0800, Jason Wang wrote: > Current XDP implementation wants guest offloads feature to be disabled > on device. This is inconvenient and means guest can't benefit from > offloads if XDP is not used. This patch tries to address this > limitation by disabling the offloads on demand through control guest > offloads. Guest offloads will be disabled

On 16-12-23 06:37 AM, Jason Wang wrote: > Merry Xmas and a Happy New year to all: > > This series tries to fixes several issues for virtio-net XDP which > could be categorized into several parts: > > - fix several issues during XDP linearizing > - allow csumed packet to work for XDP_PASS > - make EWMA rxbuf size estimation works for XDP > - forbid XDP when GUEST_UFO is

Commits: fd2a0437dc33 virtio_net: introduce virtio_net_hdr_{from,to}_skb e858fae2b0b8 virtio_net: use common code for virtio_net_hdr and skb GSO conversion introduced a subtle (but unexplained) difference in how virtio_net flags are derived from skb->ip_summed fields on transmit from the guest to the host/backend. Prior to the patches the flags would be set to VIRTIO_NET_HDR_F_NEEDS_CSUM if

Commits: fd2a0437dc33 virtio_net: introduce virtio_net_hdr_{from,to}_skb e858fae2b0b8 virtio_net: use common code for virtio_net_hdr and skb GSO conversion introduced a subtle (but unexplained) difference in how virtio_net flags are derived from skb->ip_summed fields on transmit from the guest to the host/backend. Prior to the patches the flags would be set to VIRTIO_NET_HDR_F_NEEDS_CSUM if

From: Jason Wang <jasowang at redhat.com> Date: Thu, 22 Nov 2018 14:36:30 +0800 > We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we > can receive partial csumed packets with metadata kept in the > vnet_hdr. This may have several side effects: > > - It could be overridden by header adjustment, thus is might be not > correct after XDP processing.

2017-04-17 9:47 GMT+02:00 Oscar Salvador <osalvador.vilardaga at gmail.com>: > This patch introduces the nouveau_hwmon_ops structure, sets up > .is_visible and .read_string operations and adds all the functions > for these operations. > This is also a preparation for the next patches, where most of the > work is being done. > This code doesn't interacture with the old

On 2017?01?21? 00:45, Michael S. Tsirkin wrote: > On Fri, Jan 20, 2017 at 02:32:42PM +0800, Jason Wang wrote: >> Commit 501db511397f ("virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on >> xmit") in fact disables VIRTIO_HDR_F_DATA_VALID on receiving path too, >> fixing this by adding a hint (has_data_valid) and set it only on the >> receiving path. >>

On 2017?01?21? 00:45, Michael S. Tsirkin wrote: > On Fri, Jan 20, 2017 at 02:32:42PM +0800, Jason Wang wrote: >> Commit 501db511397f ("virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on >> xmit") in fact disables VIRTIO_HDR_F_DATA_VALID on receiving path too, >> fixing this by adding a hint (has_data_valid) and set it only on the >> receiving path. >>

The power sensors can be configured to sample the readout values over time. Nvidia does this too, so nouveau should probably do that too. Karol Herbst (4): iccsense: remove read function iccsense: convert to linked list iccsense: split sensor into own struct iccsense: configure sensors like nvidia does drm/nouveau/include/nvkm/subdev/iccsense.h | 6 +- drm/nouveau/nouveau_hwmon.c

Another checksum offload problem was reported on xen-users, when using a domU as a firewall: http://lists.xensource.com/archives/html/xen-users/2006-04/msg01150.html It also fails without VLANs. The path from dom0->domU with ip_summed==CHECKSUM_HW/proto_csum_blank==1 is broken. - skb_checksum_setup() assumes that a checksum will definitely be calculated in dev_queue_xmit(), but the

The power sensors can be configured to sample the readout values over time. Nvidia does this too, so nouveau should probably do that too. v2: use list_del and rework an error message Karol Herbst (4): iccsense: remove read function iccsense: convert to linked list iccsense: split sensor into own struct iccsense: configure sensors like nvidia does

Signed-off-by: Karol Herbst <nouveau at karolherbst.de> --- drm/nouveau/include/nvkm/subdev/iccsense.h | 4 +--- drm/nouveau/nouveau_hwmon.c | 2 +- drm/nouveau/nvkm/subdev/iccsense/base.c | 32 +++++++++++++----------------- drm/nouveau/nvkm/subdev/iccsense/priv.h | 1 + 4 files changed, 17 insertions(+), 22 deletions(-) diff --git

This patch introduces the structure "struct hwmon_ops" and sets up the ".visible" operation. Is also a preparation for the next patch where all work is being done. --- linux/drivers/gpu/drm/nouveau/nouveau_hwmon.c.orig 2017-04-12 19:22:29.070573187 +0200 +++ linux/drivers/gpu/drm/nouveau/nouveau_hwmon.c 2017-04-12 19:21:32.391338011 +0200 @@ -764,6 +764,166 @@ static const