svn commit: r333338 - in stable/11/sys: dev/bnxt kern net sys

[Harry Schmalzbauer]

 Bezüglich Stephen Hurd's Nachricht vom 07.05.2018 23:42 (localtime):
> Author: shurd
> Date: Mon May  7 21:42:22 2018
> New Revision: 333338
> URL: https://svnweb.freebsd.org/changeset/base/333338
>
> Log:
>   Merge iflib changes to 11-STABLE
>   
>   MFC r300147, r300153, r300154, r300215, r301563, r301567,
>   r302372, r307560, r307562, r307563, r307568, r308792, r311039,
>   r311837, r312755, r312903, r312905, r312924, r313248, r315217,
>   r315245, r315288, r316278, r316281, r316502, r316596, r317756,
>   r319917, r319921, r319984, r319989, r320059, r320609, r320611,
>   r321253, r321629, r321630, r322337, r322338, r322823, r323077,
>   r323825, r323876, r323879, r323887, r323941, r323942, r323943,
>   r323944, r323954, r324038, r324318, r324937, r325166, r325167,
>   r325168, r325201, r325241, r325245, r325487, r325494, r325901,
>   r326033, r326369, r326370, r326432, r326577, r326578, r326702,
>   r326706, r326775, r327013, r327017, r327052, r327072, r327098,
>   r327242, r327244, r327247, r329651, r329742, r330289, r330715,
>   r330721, r332419, r332422, r332729
>   
>   Reviewed by:	sbruno
>   Approved by:	re (delphij@)
>   Sponsored by:	Limelight Networks
>   Differential Revision:	https://reviews.freebsd.org/D15142

Thanks to all for all your hard work pushing iflib.

Unfortunately I haven't had time to check if EM_MULTIQUEUE suffers from
a regression with iflib – previous em-attached NICs 2nd queue support.
At least one i217 I'm using -current with, uses only one queue. But that
was igb, not em, so I'm wondering if i217 ist limited to 1 queue – at
least i210 supports 4 queues... hints welcome.

But I have several oldish machines with hartwell (82574L, still running
10-stable), which showed much better delivery if multiple line speed
clients were generating load and EM_MULTIQUEUE added support for 2
queues (and ULE on SMP machine...).

I'm also unsure about the current netmap state. When I last checked
(some months ago), igb(->em)/netmap didn't work. If netmap support was
restored, I missed that.

Can you confirm that if EM_MULTIQUEUE and netmap are supposed to be
still working with all the adapters which were supported by previous
stable-11 (em+igb) code?
Or do we need bold release notes that igb/em users must be aware of
significant changes?

Thanks,

-harry