netdev - Re: [PATCH net-next v3 0/4] selftests: drv-net: rss

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Date: Wed, 26 Jun 2024 17:50:20 +0100
From: Edward Cree <ecree.xilinx@...il.com>
To: Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc: netdev@...r.kernel.org, edumazet@...gle.com, pabeni@...hat.com,
 willemdebruijn.kernel@...il.com, dw@...idwei.uk,
 przemyslaw.kitszel@...el.com, michael.chan@...adcom.com,
 andrew.gospodarek@...adcom.com, leitao@...ian.org, petrm@...dia.com
Subject: Re: [PATCH net-next v3 0/4] selftests: drv-net: rss_ctx: add tests
 for RSS contexts

On 26/06/2024 02:24, Jakub Kicinski wrote:
> Ed, could you try the tests with your device?

Don't seem to be able to get them to run:

# Exception| Traceback (most recent call last):
# Exception|   File "/home/ecree/kern/linux/tools/testing/selftests/net/lib/py/ksft.py", line 134, in ksft_run
# Exception|     case(*args)
# Exception|   File "./drivers/net/hw/rss_ctx.py", line 70, in test_rss_key_indir
# Exception|     if len(_get_rx_cnts(cfg)) < 2:
# Exception|   File "./drivers/net/hw/rss_ctx.py", line 55, in _get_rx_cnts
# Exception|     data = cfg.netdevnl.qstats_get({"ifindex": cfg.ifindex, "scope": ["queue"]}, dump=True)
# Exception|   File "/home/ecree/kern/linux/tools/net/ynl/lib/ynl.py", line 1029, in _op
# Exception|     return self._ops(ops)[0]
# Exception|   File "/home/ecree/kern/linux/tools/net/ynl/lib/ynl.py", line 985, in _ops
# Exception|     raise NlError(nl_msg)
# Exception| net.ynl.lib.ynl.NlError: Netlink error: Operation not supported
# Exception| nl_len = 28 (12) nl_flags = 0x202 nl_type = 3
# Exception| 	error: -95
# Exception| 	extack: {'bad-attr': '.ifindex'}
not ok 1 rss_ctx.test_rss_key_indir

Cursory investigation suggests this is because sfc doesn't
 support netdev_stat_ops, we're still living in the bad old
 days of ethtool -S for our per-queue stats :(
Much as I'd like to fix that, I don't see a prospect of the
 folks upstairs carving out time for it any time soon...

-ed