From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9539B330315; Fri, 20 Mar 2026 08:42:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773996126; cv=none; b=TYt8Y8p3+8wxXi+9+fFByWNLGEB95ibqrayj2r8n5V9SK0pAUf9pRw50vd/FPOzpRoK9kPYElXtgIbXgBX9DL+zcJuxaDMPqNl0k5/w0z8D8y0uIV4M/npBXJLnr4DCGFBHlOWWgtiI2pbUcXeg6Jt0eIAsSPiKFOgrjowh2yUw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773996126; c=relaxed/simple; bh=zO+mvqsTq/FqjQ/HTVX0MRBmWd8ADYf0Gqg71xQZ7uw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=WrXDm1kxu7aonzXTh9VaGn98gRpceSzugaUTw3MiIB2E4iG7xgQG2B4pda2+G3Bq/7VzZblwe8eV3eXs8Cr39gmPv19VaVjF4cBM1YaBkDwTUkDxEpEpD7ahkySpozS5YrFRIqiKn6YJAhgAfvyE4lMuhp0goiahHP6VFAp2q8Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=py0xTpPH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="py0xTpPH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BEB67C4CEF7; Fri, 20 Mar 2026 08:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773996126; bh=zO+mvqsTq/FqjQ/HTVX0MRBmWd8ADYf0Gqg71xQZ7uw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=py0xTpPHS8fN339WVJA2dgI+xAHOnqod23eKmMzT373n8mUPjOYNbKqmBgcsBPPLr Ci1rbCBIcFaLswarXeyJPZXt4UR+84ejGbnrnigu16/6drZn1A9dv9Kkm7eXhisGYO DAShZAk57xa1ZFX5BBgtynGiBgIpQAgn2kALEXJN/j8U5DfGF9LK0EtJrCDlQubIBD ZGWS2pn2oac+isGvi+cCUkO1x+NfG/meanGy9mpdUKpc9A9cfrzee/jmpmD2yp/f61 fgwuVt60U4lrOHtJznt5DsBdkrMvYFZ3sACzJO5xTjn/MQK3tToMac+doRtacAzEmS IVg/GAmxpX+qQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Maciej Fijalkowski , 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 Subject: Re: [PATCH v2 net 8/8] selftests: bpf: adjust rx_dropped xskxceiver's test to respect tailroom In-Reply-To: <20260319175538.479139-9-maciej.fijalkowski@intel.com> References: <20260319175538.479139-1-maciej.fijalkowski@intel.com> <20260319175538.479139-9-maciej.fijalkowski@intel.com> Date: Fri, 20 Mar 2026 09:42:03 +0100 Message-ID: <87ecleopt0.fsf@all.your.base.are.belong.to.us> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Maciej Fijalkowski 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 Reviewed-by: Bj=C3=B6rn T=C3=B6pel