similar to: [PATCH v2 0/1] virtio_net: vdpa: update MAC address when it is generated by virtio-net

On Tue, Jan 24, 2023 at 12:04:24PM +0100, Laurent Vivier wrote: > On 1/24/23 11:15, Michael S. Tsirkin wrote: > > On Mon, Jan 23, 2023 at 01:00:22PM +0100, Laurent Vivier wrote: > > > In virtnet_probe(), if the device doesn't provide a MAC address the > > > driver assigns a random one. > > > As we modify the MAC address we need to notify the device to allow

When the MAC address is not provided by the vdpa device virtio_net driver assigns a random one without notifying the device. The consequence, in the case of mlx5_vdpa, is the internal routing tables of the device are not updated and this can block the communication between two namespaces. To fix this problem, use virtnet_send_command(VIRTIO_NET_CTRL_MAC) to set the address from virtnet_probe()

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Resend due to send with too long recipients list. Sorry! Thanks to Joe

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Resend due to send with too long recipients list. Sorry! Thanks to Joe

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Resend due to send with too long recipients list. Sorry! Thanks to Joe

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Danny Kukawka (2): net: replace random_ether_addr() with

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Danny Kukawka (2): net: replace random_ether_addr() with

The second part of my patch series to fix the handling of addr_assign_type for random MAC addresses. This contains the trival changes from random_ether_addr() to new eth_hw_addr_random() and code to reset the state to NET_ADDR_PERM as soon as the MAC get changed via .ndo_set_mac_address where eth_mac_addr wasn't used. Danny Kukawka (2): net: replace random_ether_addr() with

When we use virtio-vga with a big-endian guest, the mouse pointer disappears. To fix that, on big-endian use DRM_FORMAT_BGRA8888 instead of DRM_FORMAT_ARGB8888. Signed-off-by: Laurent Vivier <lvivier at redhat.com> --- drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c

When we use virtio-vga with a big-endian guest, the mouse pointer disappears. To fix that, on big-endian use DRM_FORMAT_BGRA8888 instead of DRM_FORMAT_ARGB8888. Signed-off-by: Laurent Vivier <lvivier at redhat.com> --- drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c

We use single queue even if multiqueue is enabled and let admin to enable it through ethtool later. This is used to avoid possible regression (small packet TCP stream transmission). But looks like an overkill since: - single queue user can disable multiqueue when launching qemu - brings extra troubles for the management since it needs extra admin tool in guest to enable multiqueue - multiqueue

We use single queue even if multiqueue is enabled and let admin to enable it through ethtool later. This is used to avoid possible regression (small packet TCP stream transmission). But looks like an overkill since: - single queue user can disable multiqueue when launching qemu - brings extra troubles for the management since it needs extra admin tool in guest to enable multiqueue - multiqueue

On 06/11/2019 14:56, Michael S. Tsirkin wrote: > On Fri, Oct 18, 2019 at 06:47:18PM +0200, Laurent Vivier wrote: >> When we hot unplug a virtserialport and then try to hot plug again, >> it fails: >> >> (qemu) chardev-add socket,id=serial0,path=/tmp/serial0,server,nowait >> (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ >>

On 06/11/2019 14:56, Michael S. Tsirkin wrote: > On Fri, Oct 18, 2019 at 06:47:18PM +0200, Laurent Vivier wrote: >> When we hot unplug a virtserialport and then try to hot plug again, >> it fails: >> >> (qemu) chardev-add socket,id=serial0,path=/tmp/serial0,server,nowait >> (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ >>

When we hot unplug a virtserialport and then try to hot plug again, it fails: (qemu) chardev-add socket,id=serial0,path=/tmp/serial0,server,nowait (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ chardev=serial0,id=serial0,name=serial0 (qemu) device_del serial0 (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\

When we hot unplug a virtserialport and then try to hot plug again, it fails: (qemu) chardev-add socket,id=serial0,path=/tmp/serial0,server,nowait (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ chardev=serial0,id=serial0,name=serial0 (qemu) device_del serial0 (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\

Otherwise the virtqueue object to instate could point to invalid address that was unmapped from the MTT: mlx5_core 0000:41:04.2: mlx5_cmd_out_err:782:(pid 8321): CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status bad parameter(0x3), syndrome (0x5fa1c), err(-22) Fixes: cae15c2ed8e6 ("vdpa/mlx5: Implement susupend virtqueue callback") Cc: Eli Cohen <elic at nvidia.com>

On Wed, Feb 15, 2023 at 9:31 AM Si-Wei Liu <si-wei.liu at oracle.com> wrote: > > Otherwise the virtqueue object to instate could point to invalid address > that was unmapped from the MTT: > > mlx5_core 0000:41:04.2: mlx5_cmd_out_err:782:(pid 8321): > CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status > bad parameter(0x3), syndrome (0x5fa1c), err(-22) > >

On 2/15/2023 8:48 PM, Jason Wang wrote: > On Wed, Feb 15, 2023 at 9:31 AM Si-Wei Liu <si-wei.liu at oracle.com> wrote: >> Otherwise the virtqueue object to instate could point to invalid address >> that was unmapped from the MTT: >> >> mlx5_core 0000:41:04.2: mlx5_cmd_out_err:782:(pid 8321): >> CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status

This patch series is based on Eugenio's fix for handling CVQs in a different ASID [0]. The first patch is the actual fix. The next 2 patches are fixing a possible issue that I found while implementing patch 1. The patches are ordered like this for clarity. [0] https://lore.kernel.org/lkml/20230112142218.725622-1-eperezma at redhat.com/ Dragos Tatulea (1): vdpa/mlx5: Fix