Merge branch 'qdisc-noop'

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Jesper Dangaard Brouer says:

====================
Fix qdisc noop issue caused by driver and identify future bugs

I've been very puzzled why networking on my NXP development board,
using driver dpaa2-eth, stopped working when I updated the kernel
version >= 5.3.  The observable issue were that interface would drop
all TX packets, because it had assigned the qdisc noop.

This turned out the be a NIC driver bug, that would only get triggered
when using sysctl net/core/default_qdisc=fq_codel. It was non-trivial
to find out[1] this was driver related. Thus, this patchset besides
fixing the driver bug, also helps end-user identify the issue.

[1]: https://github.com/xdp-project/xdp-project/blob/master/areas/arm64/board_nxp_ls1088/nxp-board04-troubleshoot-qdisc.org
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2020-04-24 16:44:55 -07:00

parent 92dc39fd40 b89c1e6bdc

commit 6861d6d9cf

2 changed files with 6 additions and 3 deletions

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4

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

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5

net/sched/cls_api.c

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