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Date:      Tue, 8 May 2018 10:44:24 -0600
From:      Sean Bruno <sbruno@freebsd.org>
To:        Harry Schmalzbauer <freebsd@omnilan.de>, Kevin Bowling <kevin.bowling@kev009.com>
Cc:        "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Stephen Hurd <shurd@freebsd.org>
Subject:   Re: iflib-if_em tests with HEAD and lagg panic [Was: Re: svn commit: r333338 - in stable/11/sys: dev/bnxt kern net sys]
Message-ID:  <65972f0d-2873-42ea-464c-a3db543abafb@freebsd.org>
In-Reply-To: <5AF1CF0F.4040909@omnilan.de>
References:  <201805072142.w47LgN1R041002@repo.freebsd.org> <5AF16B8B.7030703@omnilan.de> <CAK7dMtBkCvLgPVnsf%2BECcrdbKNvOShONeZ=vqvg3dJ5ZeuoP5w@mail.gmail.com> <5AF17134.7020602@omnilan.de> <CAK7dMtB3V1F=2AxtsbUznn5DO81G3Zkh9UYiN3eWkyOfV_CYmg@mail.gmail.com> <5AF1CF0F.4040909@omnilan.de>

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From: Sean Bruno <sbruno@freebsd.org>
To: Harry Schmalzbauer <freebsd@omnilan.de>,
 Kevin Bowling <kevin.bowling@kev009.com>
Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
 Stephen Hurd <shurd@freebsd.org>
Message-ID: <65972f0d-2873-42ea-464c-a3db543abafb@freebsd.org>
Subject: Re: iflib-if_em tests with HEAD and lagg panic [Was: Re: svn commit:
 r333338 - in stable/11/sys: dev/bnxt kern net sys]
References: <201805072142.w47LgN1R041002@repo.freebsd.org>
 <5AF16B8B.7030703@omnilan.de>
 <CAK7dMtBkCvLgPVnsf+ECcrdbKNvOShONeZ=vqvg3dJ5ZeuoP5w@mail.gmail.com>
 <5AF17134.7020602@omnilan.de>
 <CAK7dMtB3V1F=2AxtsbUznn5DO81G3Zkh9UYiN3eWkyOfV_CYmg@mail.gmail.com>
 <5AF1CF0F.4040909@omnilan.de>
In-Reply-To: <5AF1CF0F.4040909@omnilan.de>

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On 05/08/18 10:23, Harry Schmalzbauer wrote:
> Bez=C3=BCglich Kevin Bowling's Nachricht vom 08.05.2018 11:52 (localtim=
e):
> =E2=80=A6
>>> But if the simple iflib/hw-support test with kawela+hartwell helps I'=
m
>>> happy to do.
>>
>> At this point it would be helpful, we think e1000 is nearing pretty
>> good shape and I need to become familiar with any outstanding bugs.
>=20
> I started with hartwell:
> em1: attach_pre capping queues at 2
>=20
> Current cap: 0x460b
> em1: using 1024 tx descriptors and 1024 rx descriptors
> em1: msix_init qsets capped at 2
> em1: pxm cpus: 2 queue msgs: 4 admincnt: 1
> em1: using 2 rx queues 2 tx queues
> em1: Using MSIX interrupts with 3 vectors
> em1: allocated for 2 tx_queues
> em1: allocated for 2 rx_queues
> em1: Ethernet address: 00:1b:21:3e:90:52
> em1: netmap queues/slots: TX 2/1024, RX 2/1024
> dev.em.1.iflib.driver_version: 7.6.1-k
> dev.em.1.queue_rx_1.rx_irq: 0
> dev.em.1.queue_rx_1.rxd_tail: 607
> dev.em.1.queue_rx_1.rxd_head: 21
> dev.em.1.queue_rx_0.rx_irq: 0
> dev.em.1.queue_rx_0.rxd_tail: 410
> dev.em.1.queue_rx_0.rxd_head: 412
> dev.em.1.queue_tx_1.tx_irq: 0
> dev.em.1.queue_tx_1.txd_tail: 8
> dev.em.1.queue_tx_1.txd_head: 8
> dev.em.1.queue_tx_0.tx_irq: 0
> dev.em.1.queue_tx_0.txd_tail: 428
> dev.em.1.queue_tx_0.txd_head: 428
>=20
> Looks good so far, no problems with simple line speed (NFS4) copies.
>=20
> According to the i217 (Clarkville) Datasheet, it also supports 2 queues=
:
> Table 63. Intel=C2=AE Ethernet Controller I217 Capability PHY Address 0=
1,
>           Page 776,Register 19
> But it probably was never supported, at least I haven't ever checked
> pre-iflib.
> Here's the clakville:
> em0: attach_pre capping queues at 1
> em0: using 1024 tx descriptors and 1024 rx descriptors
> em0: msix_init qsets capped at
> em0: PCIY_MSIX capability not found; or rid 0 =3D=3D 0.
> em0: Using an MSI interrupt
> em0: allocated for 1 tx_queues
> em0: allocated for 1 rx_queues
> em0: Ethernet address: 54:be:f7:0b:d7:4e
> em0: netmap queues/slots: TX 1/1024, RX 1/1024
>=20
> Since it's not not effort here, I also tried LACP, which panicked.
> vmcore available, but what debugger to use these days? kgdb seems to be=

> replaced...
>=20
> -harry
> _____________

/usr/libexec/kgdb should be the old kgdb that you are used to.  Most of
us have switched to using devel/gdb from ports.

sean


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