From: "Björn Töpel" <bjorn@kernel.org>
To: Maciej Fijalkowski <maciej.fijalkowski@intel.com>,
netdev@vger.kernel.org
Cc: bpf@vger.kernel.org, magnus.karlsson@intel.com,
stfomichev@gmail.com, kuba@kernel.org, pabeni@redhat.com,
horms@kernel.org, larysa.zaremba@intel.com,
aleksander.lobakin@intel.com,
Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Subject: Re: [PATCH v2 net 8/8] selftests: bpf: adjust rx_dropped xskxceiver's test to respect tailroom
Date: Fri, 20 Mar 2026 09:42:03 +0100 [thread overview]
Message-ID: <87ecleopt0.fsf@all.your.base.are.belong.to.us> (raw)
In-Reply-To: <20260319175538.479139-9-maciej.fijalkowski@intel.com>
Maciej Fijalkowski <maciej.fijalkowski@intel.com> writes:
> Since we have changed how big user defined headroom in umem can be,
> change the logic in testapp_stats_rx_dropped() so we pass updated
> headroom validation in xdp_umem_reg() and still drop half of frames.
>
> Test works on non-mbuf setup so xsk_pool_get_rx_frame_size() that is
> called on xsk_rcv_check() will not account skb_shared_info size. Taking
> the tailroom size into account in test being fixed is needed as
> xdp_umem_reg() defaults to respect it.
>
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Björn Töpel <bjorn@kernel.org>
prev parent reply other threads:[~2026-03-20 8:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-19 17:55 [PATCH v2 net 0/8] xsk: tailroom reservation and MTU validation Maciej Fijalkowski
2026-03-19 17:55 ` [PATCH v2 net 1/8] xsk: tighten UMEM headroom validation to account for tailroom and min frame Maciej Fijalkowski
2026-03-20 8:13 ` Björn Töpel
2026-03-20 15:01 ` Stanislav Fomichev
2026-03-19 17:55 ` [PATCH v2 net 2/8] xsk: respect tailroom for ZC setups Maciej Fijalkowski
2026-03-20 8:14 ` Björn Töpel
2026-03-20 15:01 ` Stanislav Fomichev
2026-03-19 17:55 ` [PATCH v2 net 3/8] ice: do not round up result of dbuf calculation for xsk pool Maciej Fijalkowski
2026-03-20 8:18 ` Björn Töpel
2026-03-20 15:57 ` Maciej Fijalkowski
2026-03-19 17:55 ` [PATCH v2 net 4/8] i40e: do not round up result of dbuff " Maciej Fijalkowski
2026-03-19 17:55 ` [PATCH v2 net 5/8] xsk: validate MTU against usable frame size on bind Maciej Fijalkowski
2026-03-20 8:38 ` Björn Töpel
2026-03-20 15:51 ` Maciej Fijalkowski
2026-03-21 12:21 ` Maciej Fijalkowski
2026-03-19 17:55 ` [PATCH v2 net 6/8] selftests: bpf: fix pkt grow tests Maciej Fijalkowski
2026-03-20 8:40 ` Björn Töpel
2026-03-19 17:55 ` [PATCH v2 net 7/8] selftests: bpf: have a separate variable for drop test Maciej Fijalkowski
2026-03-20 8:41 ` Björn Töpel
2026-03-19 17:55 ` [PATCH v2 net 8/8] selftests: bpf: adjust rx_dropped xskxceiver's test to respect tailroom Maciej Fijalkowski
2026-03-20 8:42 ` Björn Töpel [this message]
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