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[net-next,0/3] virtio_net: Link queues to NAPIs

Message ID 20250110202605.429475-1-jdamato@fastly.com (mailing list archive)
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Series virtio_net: Link queues to NAPIs | expand

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Joe Damato Jan. 10, 2025, 8:26 p.m. UTC 
Greetings:

Recently [1], Jakub mentioned that there were a few drivers that are not
yet mapping queues to NAPIs.

While I don't have any of the other hardware mentioned, I do happen to
have a virtio_net laying around ;)

I've attempted to link queues to NAPIs, taking care to hold RTNL when it
seemed that the path was not already holding it.

Note: It seems virtio_net uses TX-only NAPIs which do not have NAPI IDs.
As such, I've left the TX NAPIs unset (as opposed to setting them to 0).

See the commit message of patch 3 for example out to see what I mean.

Thanks,
Joe

[1]: https://lore.kernel.org/netdev/20250109084301.2445a3e3@kernel.org/

Joe Damato (3):
  virtio_net: Prepare for NAPI to queue mapping
  virtio_net: Hold RTNL for NAPI to queue mapping
  virtio_net: Map NAPIs to queues

 drivers/net/virtio_net.c | 48 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)


base-commit: 7b24f164cf005b9649138ef6de94aaac49c9f3d1