From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
To: Ciara Loftus <ciara.loftus@intel.com>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
magnus.karlsson@intel.com, bjorn@kernel.org,
weqaar.a.janjua@intel.com
Subject: Re: [PATCH bpf-next v2 4/4] selftests/bpf: introduce xsk statistics tests
Date: Tue, 23 Feb 2021 15:41:36 +0100 [thread overview]
Message-ID: <20210223144136.GB51139@ranger.igk.intel.com> (raw)
In-Reply-To: <20210223103507.10465-5-ciara.loftus@intel.com>
On Tue, Feb 23, 2021 at 10:35:07AM +0000, Ciara Loftus wrote:
> This commit introduces a range of tests to the xsk testsuite
> for validating xsk statistics.
>
> A new test type called 'stats' is added. Within it there are
> four sub-tests. Each test configures a scenario which should
> trigger the given error statistic. The test passes if the statistic
> is successfully incremented.
>
> The four statistics for which tests have been created are:
> 1. rx dropped
> Increase the UMEM frame headroom to a value which results in
> insufficient space in the rx buffer for both the packet and the headroom.
> 2. tx invalid
> Set the 'len' field of tx descriptors to an invalid value (umem frame
> size + 1).
> 3. rx ring full
> Reduce the size of the RX ring to a fraction of the fill ring size.
> 4. fill queue empty
> Do not populate the fill queue and then try to receive pkts.
Thanks for adding descriptions!
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
>
> Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
> ---
> tools/testing/selftests/bpf/xdpxceiver.c | 137 ++++++++++++++++++++---
> tools/testing/selftests/bpf/xdpxceiver.h | 13 +++
> 2 files changed, 136 insertions(+), 14 deletions(-)
>
prev parent reply other threads:[~2021-02-23 14:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 10:35 [PATCH bpf-next v2 0/4] selftests/bpf: xsk improvements and new stats tests Ciara Loftus
2021-02-23 10:35 ` [PATCH bpf-next v2 1/4] selftest/bpf: make xsk tests less verbose Ciara Loftus
2021-02-23 10:35 ` [PATCH bpf-next v2 2/4] selftests/bpf: expose and rename debug argument Ciara Loftus
2021-02-23 14:39 ` Maciej Fijalkowski
2021-02-23 15:01 ` Loftus, Ciara
2021-02-23 10:35 ` [PATCH bpf-next v2 3/4] selftests/bpf: restructure xsk selftests Ciara Loftus
2021-02-23 10:35 ` [PATCH bpf-next v2 4/4] selftests/bpf: introduce xsk statistics tests Ciara Loftus
2021-02-23 14:41 ` Maciej Fijalkowski [this message]
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