From patchwork Fri Mar 21 00:54:18 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tushar Vyavahare X-Patchwork-Id: 14024747 X-Patchwork-Delegate: bpf@iogearbox.net Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (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 5F7B11B6CF1; Fri, 21 Mar 2025 01:23:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742520185; cv=none; b=EP+kAzivF2s9lzCryELIVO9alVgLq1cxpvO8aViN0BhkXqx9GaL6VnzdBil605qmJEsCWOVpCgCH/7uLbtvN69DVXc7rOPi/OlhuyRRlAkbhWooQsMD6356wzd6nH/1S1ZKTqg3CBjbWKW9De941Tq3deZJmAQ2FE72e/PpgrZw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742520185; c=relaxed/simple; bh=g4Zh7PWt0OMM2HXc1+ZsM/TpYkbBCUj4fIzfriMtXek=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OGRJ4SL1LdPFyVz1QFa/7UW1gnLPbUm3+O4s0/M3Pa9+rnw75iH3ywrpqPjTIr+VGXQpRc3LHyggFIaRj8oX9HJIoM9MlyM02elcEf8Wn3qWpaElEU3f6ArvhHCAHh3x1kQ1Ck6Hfc1qsAfhbbs1UHeJ4IVKk8YJa8en0G/dhAU= 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=cCC0F7fs; arc=none smtp.client-ip=198.175.65.19 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="cCC0F7fs" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742520183; x=1774056183; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=g4Zh7PWt0OMM2HXc1+ZsM/TpYkbBCUj4fIzfriMtXek=; b=cCC0F7fsW2Mztdgx/2FJ2yfqsM9XAnBf98l+k8JUicPig0vXBQByQ7XE 6O3BPMYLFA/Qjb/x7jTdbsGn/GmUjNzAUP8dfhcm/SFOrXBCH/nreQjhd hZ2fJjy9mD3eogWGQ76nga3VsX3d1mGEZN7+Z2Fh9voxWUG4y8iouZgN4 +YJJva/su71fhSOhVY4e2qKRhfFYV+7lp2Rm4v+4yIKWphad8uyzVNKDl gk5sxKGdVNLGL22PDGKKgeIPjfr8SMZLyFsLA83jfY2Wm4XQ9S25J6wOh AGLB1zL738lutsbhwYx652O5k5fflcK1BImu/E1htHmx4g/ykEz03A/gz g==; X-CSE-ConnectionGUID: JYh73wC6QBGgDsHL1Y9o8g== X-CSE-MsgGUID: C7tRqg76S+KO9lDtGAVglA== X-IronPort-AV: E=McAfee;i="6700,10204,11379"; a="43658359" X-IronPort-AV: E=Sophos;i="6.14,263,1736841600"; d="scan'208";a="43658359" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Mar 2025 18:23:03 -0700 X-CSE-ConnectionGUID: 4c1grbUJQaa1Gyejm6wEjw== X-CSE-MsgGUID: YPm+TcJbShODrpWvFp0w7w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,263,1736841600"; d="scan'208";a="123777070" Received: from brc05.iind.intel.com (HELO brc05..) ([10.190.162.156]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Mar 2025 18:22:58 -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: Fri, 21 Mar 2025 00:54:18 +0000 Message-Id: <20250321005419.684036-2-tushar.vyavahare@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250321005419.684036-1-tushar.vyavahare@intel.com> References: <20250321005419.684036-1-tushar.vyavahare@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: bpf@iogearbox.net 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 Reviewed-by: Maciej Fijalkowski --- 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,