From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (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 EACD31F1509; Thu, 10 Apr 2025 04:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744257665; cv=none; b=oZq0/yYi6/0+L2OwZZnLzWvFsq0tPvY0w8B5FQ4VYqkzcDoaYBkBwi1DP5BiEbodOR+G9X4DF6fLKIGrpdC60OB62Uzv1ZMfeOhAaeyPV/SYFRjAKKw1lI6iDOPk+aO2QsT0hN+W521qPKqPtb9V1xIY6iW1lQBCc3KFGkKy40M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744257665; c=relaxed/simple; bh=g4Zh7PWt0OMM2HXc1+ZsM/TpYkbBCUj4fIzfriMtXek=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Eg8z7cSSPjxRZxDJjW+MlGecgeXoBzoMlryKYfZ4h+BdsGc4By9y6tWBQVDSoyTw2rlOSb2Wrmpsd3xoYZmgN+kGZDIjFPvAmamD+sT7/THBtBfUllZPPXaatEe0m7NWEFN/ij4PguR5e/QKhKn2f6hMK20YDsxyz9LAtbIMm3M= 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=jX5N0ZF9; arc=none smtp.client-ip=192.198.163.16 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="jX5N0ZF9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744257664; x=1775793664; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=g4Zh7PWt0OMM2HXc1+ZsM/TpYkbBCUj4fIzfriMtXek=; b=jX5N0ZF9QSzpTI1ueFYF9Igjv0YrxACKmmJtFKwKmWvEgo42TVyinuPC EOV1AJ0J0rfmqlA+zl4mBngJXytLyKddHxDYlvVD6Unzq6uxgKr48Vtbl J/P+lr1cOqqGzOAccP0S1r5/XJlesgaw6P9NxZb8BNd5OAUUQkA2iTbzt pnD++0S4As2p/Sa1tV1IL25ik8gaPZvFknFRgu895mGuWaJJs5itDyB14 wP7DGzHK3GrEt7UWnhSA5y8FP5JnXuqS74090Ant+J+ZoU4Gh+lZMpokx K0AJm77GXQ8hQNPzGgfYSW/+Th2yRiOUGg3T/TxQ51/wyz06pxhSWuF8Q Q==; X-CSE-ConnectionGUID: vkeR8MeJT4qDJFAecohUDA== X-CSE-MsgGUID: 62aCedqKQKetGtyEVsiEtA== X-IronPort-AV: E=McAfee;i="6700,10204,11399"; a="33365754" X-IronPort-AV: E=Sophos;i="6.15,201,1739865600"; d="scan'208";a="33365754" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2025 21:01:04 -0700 X-CSE-ConnectionGUID: cszIyZ01R020TpkkQbUl0g== X-CSE-MsgGUID: KqO4Tq1kQRGSEva8uT62tQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,201,1739865600"; d="scan'208";a="159744164" Received: from brc05.iind.intel.com (HELO brc05..) ([10.190.162.156]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2025 21:01:00 -0700 From: Tushar Vyavahare To: bpf@vger.kernel.org Cc: netdev@vger.kernel.org, bjorn@kernel.org, magnus.karlsson@intel.com, maciej.fijalkowski@intel.com, jonathan.lemon@gmail.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, ast@kernel.org, daniel@iogearbox.net, tirthendu.sarkar@intel.com, tushar.vyavahare@intel.com Subject: [PATCH bpf-next v4 1/2] selftests/xsk: Add packet stream replacement function Date: Thu, 10 Apr 2025 03:31:15 +0000 Message-Id: <20250410033116.173617-2-tushar.vyavahare@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250410033116.173617-1-tushar.vyavahare@intel.com> References: <20250410033116.173617-1-tushar.vyavahare@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 Add pkt_stream_replace_ifobject function to replace the packet stream for a given ifobject. Enable separate TX and RX packet replacement, allowing RX side packet length adjustments using bpf_xdp_adjust_tail() in the upcoming patch. Currently, pkt_stream_replace() works on both TX and RX packet streams, and this new function provides the ability to modify one of them. Signed-off-by: Tushar Vyavahare --- tools/testing/selftests/bpf/xskxceiver.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 11f047b8af75..d60ee6a31c09 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -757,14 +757,15 @@ static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream) return pkt_stream_generate(pkt_stream->nb_pkts, pkt_stream->pkts[0].len); } -static void pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len) +static void pkt_stream_replace_ifobject(struct ifobject *ifobj, u32 nb_pkts, u32 pkt_len) { - struct pkt_stream *pkt_stream; + ifobj->xsk->pkt_stream = pkt_stream_generate(nb_pkts, pkt_len); +} - pkt_stream = pkt_stream_generate(nb_pkts, pkt_len); - test->ifobj_tx->xsk->pkt_stream = pkt_stream; - pkt_stream = pkt_stream_generate(nb_pkts, pkt_len); - test->ifobj_rx->xsk->pkt_stream = pkt_stream; +static void pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len) +{ + pkt_stream_replace_ifobject(test->ifobj_tx, nb_pkts, pkt_len); + pkt_stream_replace_ifobject(test->ifobj_rx, nb_pkts, pkt_len); } static void __pkt_stream_replace_half(struct ifobject *ifobj, u32 pkt_len, -- 2.34.1