Messages in this thread |  | | Date | Sun, 23 May 2021 16:46:12 +0200 | From | Andrew Lunn <> | Subject | Re: [RFC net-next 2/2] net: fec: add ndo_select_queue to fix TX bandwidth fluctuations |
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On Sun, May 23, 2021 at 06:20:19PM +0800, Joakim Zhang wrote: > From: Fugang Duan <fugang.duan@nxp.com> > > As we know that AVB is enabled by default, and the ENET IP design is > queue 0 for best effort, queue 1&2 for AVB Class A&B. Bandwidth of > queue 1&2 set in driver is 50%, TX bandwidth fluctuated when selecting > tx queues randomly with FEC_QUIRK_HAS_AVB quirk available.
How is the driver currently scheduling between these queues? Given the 802.1q priorities, i think we want queue 2 with the highest priority for scheduling. Then queue 0 and lastly queue 1.
Andrew
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