On Tue, Aug 06, 2024 at 10:22:20AM +0800, Jason Wang wrote: > Hi All: > > This series tries to synchronize the operstate with the admin state > which allows the lower virtio-net to propagate the link status to the > upper devices like macvlan. > > This is done by toggling carrier during ndo_open/stop while doing > other necessary serialization about the carrier settings during probe. > > While at it, also fix a race between probe and ndo_set_features as we > didn't initalize the guest offload setting under rtnl lock. Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx> > Changes since V5: > > - Fix sevreal typos > - Include a new patch to synchronize probe with ndo_set_features > > Changes since V4: > > - do not update settings during ndo_open() > - do not try to canel config noticiation during probe() as core make > sure the config notificaiton won't be triggered before probe is > done. > - Tweak sevreal comments. > > Changes since V3: > > - when driver tries to enable config interrupt, check pending > interrupt and execute the nofitication change callback if necessary > - do not unconditonally trigger the config space read > - do not set LINK_UP flag in ndo_open/close but depends on the > notification change > - disable config change notification until ndo_open() > - read the link status under the rtnl_lock() to prevent a race with > ndo_open() > > Changes since V2: > > - introduce config_driver_disabled and helpers > - schedule config change work unconditionally > > Thanks > > Jason Wang (4): > virtio: rename virtio_config_enabled to virtio_config_core_enabled > virtio: allow driver to disable the configure change notification > virtio-net: synchronize operstate with admin state on up/down > virtio-net: synchronize probe with ndo_set_features > > drivers/net/virtio_net.c | 78 +++++++++++++++++++++++++--------------- > drivers/virtio/virtio.c | 59 +++++++++++++++++++++++------- > include/linux/virtio.h | 11 ++++-- > 3 files changed, 105 insertions(+), 43 deletions(-) > > -- > 2.31.1
