From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 EDBFB393DFB; Thu, 19 Mar 2026 17:56:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773942965; cv=none; b=W/VYZa4MqM0i9SRQkxr81SN+cUD+5ZXjADYlyJhMnePYEmxjUNFEIc5Ex4CyHm5amiCBwEw40jd+fkulfPy0sm7fSdRJi7Abai9hcT68jx7xPXCEuiu8zeQxZ3Jb1UXFQmNyxScetRM58ddYURrcasQwsPuQmn5ubimD6NscfqM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773942965; c=relaxed/simple; bh=+A97T9xfOfecH+OOnmMfDbqo/5jBA0+AT7JZjSM06UM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NeVAZx9GkMFH4iZrQONK+GW10UXlQwcW2CirmKgVhu8Ll0mUqcn/7D7YACPGoaL9T/ncLDj8BRNaoHQqTrE337rSrZ26KmsJ3Xqmr1OBu5wHcpd2o7OK4wm8i2wJhkeL7Diz9CyV9rX7BHQm1QjzS346MdD7ruJIVPmSjvekqq4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=N+RTD6GP; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="N+RTD6GP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1773942964; x=1805478964; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+A97T9xfOfecH+OOnmMfDbqo/5jBA0+AT7JZjSM06UM=; b=N+RTD6GPzaw3aF+J2hBydEirk1nSliSW9CECYFtj0RyaQ/bws/OJlEwh au/qr9mBiny4LmfO48q+bL7QzlGQK8LRXwImWWD9jUYSh/Gx4dw/5BmhV 1t2twvgfe/FreQe4rI0epoVpItQi8iTQNipJxPNjT0QWyJIxCv7oGfCw8 BrfkqzPY3aFsejix93HhJRie3+lXa3hf/jQtoQNIp/LaY97aJrY+zo/LK Fx0IPEjyVNZcy3pwUzHpw35HS0DVI7VF/lI5Wglk29DxNEQuV6jEDyVmb qkIx1OqP6EyIX3s82KDaMBd2tauNRaf6h9tu744Mm6sClZRbUAQMeyrhq Q==; X-CSE-ConnectionGUID: dAtoUGToS1qHK/0au4j/5Q== X-CSE-MsgGUID: q/HlahTrRF621jIqvfE6cg== X-IronPort-AV: E=McAfee;i="6800,10657,11734"; a="74038635" X-IronPort-AV: E=Sophos;i="6.23,129,1770624000"; d="scan'208";a="74038635" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2026 10:56:04 -0700 X-CSE-ConnectionGUID: iMysALlkQv6vM6BriLQCOA== X-CSE-MsgGUID: j2yIx+0wQnu4fg2DLJSu/Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,129,1770624000"; d="scan'208";a="246058708" Received: from boxer.igk.intel.com ([10.102.20.173]) by fmviesa002.fm.intel.com with ESMTP; 19 Mar 2026 10:56:01 -0700 From: Maciej Fijalkowski To: 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, bjorn@kernel.org, Maciej Fijalkowski Subject: [PATCH v2 net 8/8] selftests: bpf: adjust rx_dropped xskxceiver's test to respect tailroom Date: Thu, 19 Mar 2026 18:55:38 +0100 Message-Id: <20260319175538.479139-9-maciej.fijalkowski@intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20260319175538.479139-1-maciej.fijalkowski@intel.com> References: <20260319175538.479139-1-maciej.fijalkowski@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- tools/testing/selftests/bpf/prog_tests/test_xsk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/test_xsk.c b/tools/testing/selftests/bpf/prog_tests/test_xsk.c index 95cbbf425e9a..270fd0b6dc22 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_xsk.c +++ b/tools/testing/selftests/bpf/prog_tests/test_xsk.c @@ -1984,10 +1984,10 @@ int testapp_stats_rx_dropped(struct test_spec *test) return TEST_SKIP; } - if (pkt_stream_replace_half(test, MIN_PKT_SIZE * 4, 0)) + if (pkt_stream_replace_half(test, MIN_PKT_SIZE + XSK_UMEM__PACKET_TAILROOM, 0)) return TEST_FAILURE; test->ifobj_rx->umem->frame_headroom = test->ifobj_rx->umem->frame_size - - XDP_PACKET_HEADROOM - MIN_PKT_SIZE * 3; + XDP_PACKET_HEADROOM - MIN_PKT_SIZE - (XSK_UMEM__PACKET_TAILROOM - 1); if (pkt_stream_receive_half(test)) return TEST_FAILURE; test->ifobj_rx->validation_func = validate_rx_dropped; -- 2.43.0