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Date:      Thu, 4 Jan 2024 16:28:07 +0100
From:      tuexen@freebsd.org
To:        "Herbert J. Skuhra" <herbert@gojira.at>
Cc:        current@freebsd.org, net@freebsd.org
Subject:   Re: Request for Testing: TCP RACK
Message-ID:  <FBBDA19B-4A99-493F-9B53-120F0DDAA764@freebsd.org>
In-Reply-To: <87mstlrxf8.wl-herbert@gojira.at>
References:  <42C327BD-6CE4-43AA-A1AE-3BEC08D623DB@freebsd.org> <87pm09ykb8.wl-herbert@gojira.at> <87o7ftyhkp.wl-herbert@gojira.at> <CA%2Bq%2BTcoU21yisYDuCkYtAkJE-WXLdtohZi893zMP%2BNMG0WUh3Q@mail.gmail.com> <87msvdy0v4.wl-herbert@gojira.at> <867DC224-F0B1-4C9C-8EB7-C9F7BE1C029A@freebsd.org> <87edgo33s9.wl-herbert@gojira.at> <87o7e1s7oc.wl-herbert@gojira.at> <B2C0443E-3A01-4CD3-B20C-1C765480212C@fh-muenster.de> <87mstlrxf8.wl-herbert@gojira.at>

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> On Jan 4, 2024, at 15:22, Herbert J. Skuhra <herbert@gojira.at> wrote:
>=20
> On Thu, 04 Jan 2024 14:57:59 +0100, tuexen@fh-muenster.de wrote:
>>=20
>>> On Jan 4, 2024, at 11:40, Herbert J. Skuhra <herbert@gojira.at> =
wrote:
>>>=20
>>> On Fri, 17 Nov 2023 14:31:02 +0100, "Herbert J. Skuhra" wrote:
>>>>=20
>>>> Hi,
>>>>=20
>>>> On Fri, 17 Nov 2023 00:15:13 +0100, tuexen@freebsd.org wrote:
>>>>>=20
>>>>>> On Nov 16, 2023, at 20:06, Herbert J. Skuhra <herbert@gojira.at> =
wrote:
>>>>>>=20
>>>>>> On Thu, 16 Nov 2023 19:07:29 +0100, Olivier Cochard-Labb=C3=A9 =
wrote:
>>>>>>>=20
>>>>>>> On Thu, Nov 16, 2023 at 5:10=E2=80=AFPM Herbert J. Skuhra =
<herbert@gojira.at> wrote:
>>>>>>>=20
>>>>>>>>=20
>>>>>>>> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
>>>>>>>>=20
>>>>>>>> After setting "sysctl net.inet.tcp.functions_default=3Drack" =
git no
>>>>>>>> longer works:
>>>>>>>>=20
>>>>>>>>=20
>>>>>>> Are you using a fresh 15 head or a specific network setup ?
>>>>>>>=20
>>>>>>> Because I'm not able to reproduce your problem on my system:
>>>>>>>=20
>>>>>>> $ uname -a
>>>>>>> FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
>>>>>>> main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
>>>>>>> root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
>>>>>>> amd64
>>>>>>> $ cat /usr/src/sys/amd64/conf/TCPHPTS
>>>>>>> include GENERIC-NODEBUG
>>>>>>> ident                   TCPHPTS
>>>>>>> options                 TCPHPTS
>>>>>>> $ sysctl net.inet.tcp.functions_default
>>>>>>> net.inet.tcp.functions_default: rack
>>>>>>> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo =
working
>>>>>>> working
>>>>>>> $
>>>>>>=20
>>>>>> OK, (g)it works if I disable pf. Do you use pf?
>>>>> Can you share your pf config such that I can reproduce the problem =
locally?
>>>>=20
>>>> 1. It even fails with a simple pf.conf:
>>>> pass in all
>>>> pass out all
>>>>=20
>>>> 2. Fetching port distfiles also failed.
>>>>=20
>>>> 3. If I disable rxcsum on the ethernet adapter (igb0) it works.
>>>=20
>>> Disabling lro also resolves the issue.
>>>=20
>>> Not OK:
>>>=20
>>> igb0: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP>=
 metric 0 mtu 1500
>>>      =
options=3D4e527bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWC=
SUM,TSO4,TSO6,LRO,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IP=
V6,HWSTATS,MEXTPG>
>>>=20
>>> OK:
>>>=20
>>> igb0: flags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP>=
 metric 0 mtu 1500
>>>      =
options=3D4e523bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWC=
SUM,TSO4,TSO6,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6,H=
WSTATS,MEXTPG>
>> What kind of NIC do you have? Can you post the output of
>> dmesg | grep igb0
>=20
> igb0: <Intel(R) I210 (Copper)> port 0xf000-0xf01f mem =
0xfc200000-0xfc27ffff,0xfc280000-0xfc283fff irq 28 at device 0.0 on pci3
> igb0: EEPROM V3.16-0 eTrack 0x800004d6
> igb0: Using 1024 TX descriptors and 1024 RX descriptors
> igb0: Using 4 RX queues 4 TX queues
> igb0: Using MSI-X interrupts with 5 vectors
> igb0: Ethernet address: aa:bb:cc:dd:ee:ff
> igb0: netmap queues/slots: TX 4/1024, RX 4/1024
> igb0: link state changed to UP
> igb0: link state changed to DOWN
> igb0: link state changed to UP
Hi Herbert,

thank you very much. I'll see if I have such a NIC in one of my test =
systems and will report back.

Best regards
Michael
>=20
> --
> Herbert
>=20




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