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Message-ID: <CAHS8izPCFVd=opRiGMYu3u0neOP7yCJDX8Ff+TdURq2U-Pi27A@mail.gmail.com>
Date: Thu, 31 Oct 2024 09:45:14 -0700
From: Mina Almasry <almasrymina@...gle.com>
To: Stanislav Fomichev <stfomichev@...il.com>
Cc: Stanislav Fomichev <sdf@...ichev.me>, netdev@...r.kernel.org, davem@...emloft.net,
edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
andrew+netdev@...n.ch, shuah@...nel.org, horms@...nel.org, willemb@...gle.com,
petrm@...dia.com
Subject: Re: [PATCH net-next v6 00/12] selftests: ncdevmem: Add ncdevmem to ksft
On Wed, Oct 30, 2024 at 8:37 AM Stanislav Fomichev <stfomichev@...il.com> wrote:
>
> On 10/30, Mina Almasry wrote:
> > On Wed, Oct 30, 2024 at 8:13 AM Stanislav Fomichev <stfomichev@...il.com> wrote:
> > >
> > > On 10/30, Mina Almasry wrote:
> > > > On Wed, Oct 30, 2024 at 7:27 AM Stanislav Fomichev <sdf@...ichev.me> wrote:
> > > > >
> > > > > The goal of the series is to simplify and make it possible to use
> > > > > ncdevmem in an automated way from the ksft python wrapper.
> > > > >
> > > > > ncdevmem is slowly mutated into a state where it uses stdout
> > > > > to print the payload and the python wrapper is added to
> > > > > make sure the arrived payload matches the expected one.
> > > > >
> > > > > v6:
> > > > > - fix compilation issue in 'Unify error handling' patch (Jakub)
> > > > >
> > > >
> > > > Since I saw a compilation failures on a couple of iterations I
> > > > cherry-picked this locally and tested compilation. I'm seeing this:
> > >
> > > Are you cherry picking the whole series or just this patch? It looks
> > > too broken.
> > >
> > > > sudo CFLAGS="-static" make -C ./tools/testing/selftests/drivers/net/hw
> > > > TARGETS=ncdevmem 2>&1
> > > > make: Entering directory
> > > > '/usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/drivers/net/hw'
> > > > CC ncdevmem
> > > > In file included from ncdevmem.c:63:
> > > > /usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/../../../tools/net/ynl/generated/ethtool-user.h:23:43:
> > > > warning: ‘enum ethtool_header_flags’ declared inside parameter list
> > > > will not be visible outside of this definition or declaration
> > > > 23 | const char *ethtool_header_flags_str(enum ethtool_header_flags value);
> > > > | ^~~~~~~~~~~~~~~~~~~~
> > > > /usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/../../../tools/net/ynl/generated/ethtool-user.h:25:41:
> > > > warning: ‘enum ethtool_module_fw_flash_status’ declared inside
> > > > parameter list will not be visible outside of this definition or
> > > > declaration
> > > > 25 | ethtool_module_fw_flash_status_str(enum
> > > > ethtool_module_fw_flash_status value);
> > > > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > > /usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/../../../tools/net/ynl/generated/ethtool-user.h:6766:45:
> > > > error: field ‘status’ has incomplete type
> > > > 6766 | enum ethtool_module_fw_flash_status status;
> > > > | ^~~~~~
> > >
> > > This has been fixed via '#include <linux/ethtool_netlink.h>'
> > >
> > > > ncdevmem.c: In function ‘do_server’:
> > > > ncdevmem.c:517:37: error: storage size of ‘token’ isn’t known
> > > > 517 | struct dmabuf_token token;
> > >
> > > And this, and the rest, don't make sense at all?
> > >
> > > I'll double check on my side.
> >
> > Oh, whoops, I forgot to headers_install first. This works for me:
> >
> > ➜ cos-kernel git:(tcpdevmem-fixes-1) ✗ sudo make headers_install &&
> > sudo CFLAGS="-static" make -C ./tools/testing/selftests/drivers/net/hw
> > TARGETS=ncdevmem 2>&1
> > INSTALL ./usr/include
> > make: Entering directory
> > '/usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/drivers/net/hw'
> > make: Nothing to be done for 'all'.
> > make: Leaving directory
> > '/usr/local/google/home/almasrymina/cos-kernel/tools/testing/selftests/drivers/net/hw'
> > ➜ cos-kernel git:(tcpdevmem-fixes-1) ✗ find . -iname ncdevmem
> > ./tools/testing/selftests/drivers/net/hw/ncdevmem
> >
> > Sorry for the noise :D
>
> Whew, thanks and no worries!
Sorry, 2 issues testing this series:
1. ipv4 addresses seem broken, or maybe i'm using them wrong.
Client command:
yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06) | tr \\n \\0 | head -c
1G | nc 192.168.1.4 5224 -p 5224
Server command and logs:
mina-1 /home/almasrymina # ./ncdevmem -s 192.168.1.4 -c 192.168.1.5 -l
-p 5224 -v 7 -f eth1
here: ynl.c:887:ynl_req_trampoline
using queues 15..16
Running: sudo ethtool -K eth1 ntuple off >&2
Running: sudo ethtool -K eth1 ntuple on >&2
Running: sudo ethtool -n eth1 | grep 'Filter:' | awk '{print $2}' |
xargs -n1 ethtool -N eth1 delete >&2
ethtool: bad command line argument(s)
For more information run ethtool -h
here: ynl.c:887:ynl_req_trampoline
TCP header split: on
Running: sudo ethtool -X eth1 equal 15 >&2
Running: sudo ethtool -N eth1 flow-type tcp6 src-ip 192.168.1.5 dst-ip
192.168.1.4 src-port 5224 dst-port 5224 queue 15 >&2
Invalid src-ip value[192.168.1.5]
ethtool: bad command line argument(s)
For more information run ethtool -h
./ncdevmem: Failed to configure flow steering
The ethtool command to configure flow steering is not working for me.
It thinks it's in v6 mode, when the ip address is a v4 address.
(notice `-s 192.168.1.4 -c 192.168.1.5`). flow-type should be tcp in
this case.
Reverting patch 9e2da4faeccf ("Revert "selftests: ncdevmem: Switch to
AF_INET6"") resolves this issue. Leading to the second issue:
2. Validation is now broken:
Client command:
yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06) | tr \\n \\0 | head -c
1G | nc 192.168.1.4 5224 -p 5224
Server command and logs: mina-1 /home/almasrymina # ./ncdevmem -s
192.168.1.4 -c 192.168.1.5 -l -p 5224 -v 7 -f eth1
here: ynl.c:887:ynl_req_trampoline
using queues 15..16
Running: sudo ethtool -K eth1 ntuple off >&2
Running: sudo ethtool -K eth1 ntuple on >&2
Running: sudo ethtool -n eth1 | grep 'Filter:' | awk '{print $2}' |
xargs -n1 ethtool -N eth1 delete >&2
ethtool: bad command line argument(s)
For more information run ethtool -h
here: ynl.c:887:ynl_req_trampoline
TCP header split: on
Running: sudo ethtool -X eth1 equal 15 >&2
Running: sudo ethtool -N eth1 flow-type tcp4 src-ip 192.168.1.5 dst-ip
192.168.1.4 src-port 5224 dst-port 5224 queue 15 >&2
Added rule with ID 19999
here: ynl.c:887:ynl_req_trampoline
got dmabuf id=1
binding to address 192.168.1.4:5224
Waiting or connection on 192.168.1.4:5224
Got connection from 192.168.1.5:5224
recvmsg ret=8192
received frag_page=15997, in_page_offset=0, frag_offset=65523712,
frag_size=4096, token=1, total_received=4096, dmabuf_id=1
Failed validation: expected=1, actual=0, index=0
Failed validation: expected=2, actual=0, index=1
Failed validation: expected=3, actual=0, index=2
Failed validation: expected=4, actual=0, index=3
Failed validation: expected=5, actual=0, index=4
Failed validation: expected=6, actual=0, index=5
Failed validation: expected=1, actual=0, index=7
Failed validation: expected=2, actual=0, index=8
Failed validation: expected=3, actual=0, index=9
Failed validation: expected=4, actual=0, index=10
Failed validation: expected=5, actual=0, index=11
Failed validation: expected=6, actual=0, index=12
Failed validation: expected=1, actual=0, index=14
Failed validation: expected=2, actual=0, index=15
Failed validation: expected=3, actual=0, index=16
Failed validation: expected=4, actual=0, index=17
Failed validation: expected=5, actual=0, index=18
Failed validation: expected=6, actual=0, index=19
Failed validation: expected=1, actual=0, index=21
Failed validation: expected=2, actual=0, index=22
Failed validation: expected=3, actual=0, index=23
./ncdevmem: validation failed.
I haven't debugged issue #2 yet, but both need to be resolved before
merge. I'm happy to provide more details if you can't repro. My setup:
mina-1 /home/almasrymina # cat /boot/config-6.12.0-rc4 | grep -i ipv6
CONFIG_IPV6=y
mina-1 /home/almasrymina # cat /proc/sys/net/ipv6/bindv6only
0
--
Thanks,
Mina
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