Re: [PATCH bpf-next v2 5/5] selftests/bpf: xsk selftests - Bi-directional Sockets - SKB, DRV

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On Fri, 20 Nov 2020 at 20:45, Yonghong Song <yhs@xxxxxx> wrote:
>
>
>
> On 11/20/20 5:00 AM, Weqaar Janjua wrote:
> > Adds following tests:
> >
> > 1. AF_XDP SKB mode
> >     d. Bi-directional Sockets
> >        Configure sockets as bi-directional tx/rx sockets, sets up fill
> >        and completion rings on each socket, tx/rx in both directions.
> >        Only nopoll mode is used
> >
> > 2. AF_XDP DRV/Native mode
> >     d. Bi-directional Sockets
> >     * Only copy mode is supported because veth does not currently support
> >       zero-copy mode
> >
> > Signed-off-by: Weqaar Janjua <weqaar.a.janjua@xxxxxxxxx>
> > ---
> >   tools/testing/selftests/bpf/Makefile          |   4 +-
> >   .../bpf/test_xsk_drv_bidirectional.sh         |  23 ++++
> >   .../selftests/bpf/test_xsk_drv_teardown.sh    |   3 -
> >   .../bpf/test_xsk_skb_bidirectional.sh         |  20 ++++
> >   tools/testing/selftests/bpf/xdpxceiver.c      | 100 +++++++++++++-----
> >   tools/testing/selftests/bpf/xdpxceiver.h      |   4 +
> >   6 files changed, 126 insertions(+), 28 deletions(-)
> >   create mode 100755 tools/testing/selftests/bpf/test_xsk_drv_bidirectional.sh
> >   create mode 100755 tools/testing/selftests/bpf/test_xsk_skb_bidirectional.sh
> >
> > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> > index 515b29d321d7..258bd72812e0 100644
> > --- a/tools/testing/selftests/bpf/Makefile
> > +++ b/tools/testing/selftests/bpf/Makefile
> > @@ -78,7 +78,9 @@ TEST_PROGS := test_kmod.sh \
> >       test_xsk_drv_nopoll.sh \
> >       test_xsk_drv_poll.sh \
> >       test_xsk_skb_teardown.sh \
> > -     test_xsk_drv_teardown.sh
> > +     test_xsk_drv_teardown.sh \
> > +     test_xsk_skb_bidirectional.sh \
> > +     test_xsk_drv_bidirectional.sh
> >
> >   TEST_PROGS_EXTENDED := with_addr.sh \
> >       with_tunnels.sh \
> > diff --git a/tools/testing/selftests/bpf/test_xsk_drv_bidirectional.sh b/tools/testing/selftests/bpf/test_xsk_drv_bidirectional.sh
> > new file mode 100755
> > index 000000000000..d3a7e2934d83
> > --- /dev/null
> > +++ b/tools/testing/selftests/bpf/test_xsk_drv_bidirectional.sh
> > @@ -0,0 +1,23 @@
> > +#!/bin/bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +# Copyright(c) 2020 Intel Corporation.
> > +
> > +# See test_xsk_prerequisites.sh for detailed information on tests
> > +
> > +. xsk_prereqs.sh
> > +. xsk_env.sh
> > +
> > +TEST_NAME="DRV BIDIRECTIONAL SOCKETS"
> > +
> > +vethXDPnative ${VETH0} ${VETH1} ${NS1}
> > +
> > +params=("-N" "-B")
> > +execxdpxceiver params
> > +
> > +retval=$?
> > +test_status $retval "${TEST_NAME}"
> > +
> > +# Must be called in the last test to execute
> > +cleanup_exit ${VETH0} ${VETH1} ${NS1}
>
> This also makes hard to run tests as users will not know this unless
> they are familiar with the details of the tests.
>
> How about you have another scripts test_xsk.sh which includes all these
> individual tests and pull the above cleanup_exit into test_xsk.sh?
> User just need to run test_xsk.sh will be able to run all tests you
> implemented here.
>
This works, test_xsk_* >> test_xsk.sh, will ship out as v3.

> > +
> > +test_exit $retval 0
> > diff --git a/tools/testing/selftests/bpf/test_xsk_drv_teardown.sh b/tools/testing/selftests/bpf/test_xsk_drv_teardown.sh
> [...]



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