On 10.05.22 17:58, Alexander Wetzel wrote:
Let iTXQ drivers also register four queues in netdev and move queue assignment to ndo_select_queue(), like it's done for other drivers. This gets rid of a special case in mac80211 and also increases the chance that when we call skb_get_hash() the skb is still hot in the CPU buffers. Signed-off-by: Alexander Wetzel <alexander@xxxxxxxxxxxxxx>
This has the disadvantage of requiring a redundant sta lookup in the tx path for iTXQ drivers. I think the CPU cost of that one is probably higher than any potential gain from calling skb_get_hash a bit earlier.
- Felix
