From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mail.toke.dk (Postfix) with ESMTPS id 50E939F7447 for ; Wed, 22 Mar 2023 17:01:26 +0100 (CET) Authentication-Results: mail.toke.dk; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BHW0pzdL DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1679500885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=u0vcj8yQCVSq1K7a3xv3DSDoQVn1iGPLpiir1Gw25As=; b=BHW0pzdLKJlaO4lf0k8OZbciubdOTpti3wx1kmNhg4R+HuVTFvBalDWwoVtdQeDCCY2URR JddabTjjUUp3H+HNsX5SqWdafYUawuSBa8P6LO6rabzlsomWCnyFeH+VNgzbHAM2UjCWw+ avwfwExhm1IzccNjtbLei4PE0DPmsTA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-625-kI6ftGVvNrafzbLAcP1GOA-1; Wed, 22 Mar 2023 12:01:22 -0400 X-MC-Unique: kI6ftGVvNrafzbLAcP1GOA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B62F91C07561; Wed, 22 Mar 2023 16:01:13 +0000 (UTC) Received: from firesoul.localdomain (unknown [10.45.242.23]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3E43E1410F1C; Wed, 22 Mar 2023 16:01:13 +0000 (UTC) Received: from [10.1.1.1] (localhost [IPv6:::1]) by firesoul.localdomain (Postfix) with ESMTP id 5873630736C72; Wed, 22 Mar 2023 17:01:12 +0100 (CET) From: Jesper Dangaard Brouer To: bpf@vger.kernel.org Date: Wed, 22 Mar 2023 17:01:12 +0100 Message-ID: <167950085059.2796265.16405349421776056766.stgit@firesoul> User-Agent: StGit/1.4 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Message-ID-Hash: 54W2GCQXXBEU3QHAREIU7AH5FT64VIYG X-Message-ID-Hash: 54W2GCQXXBEU3QHAREIU7AH5FT64VIYG X-MailFrom: brouer@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Jesper Dangaard Brouer , netdev@vger.kernel.org, Stanislav Fomichev , martin.lau@kernel.org, ast@kernel.org, daniel@iogearbox.net, alexandr.lobakin@intel.com, larysa.zaremba@intel.com, xdp-hints@xdp-project.net, anthony.l.nguyen@intel.com, yoong.siang.song@intel.com, boon.leong.ong@intel.com, intel-wired-lan@lists.osuosl.org, pabeni@redhat.com, jesse.brandeburg@intel.com, kuba@kernel.org, edumazet@google.com, john.fastabend@gmail.com, hawk@kernel.org, davem@davemloft.net X-Mailman-Version: 3.3.8 Precedence: list Subject: [xdp-hints] [PATCH bpf-next V3 0/6] XDP-hints kfuncs for Intel driver igc List-Id: XDP hardware hints design discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Implemented XDP-hints metadata kfuncs for Intel driver igc. Primarily used the tool in tools/testing/selftests/bpf/ xdp_hw_metadata, when doing driver development of these features. Recommend other driver developers to do the same. In the process xdp_hw_metadata was updated to help assist development. I've documented my practical experience with igc and tool here[1]. [1] https://github.com/xdp-project/xdp-project/blob/master/areas/hints/xdp_hints_kfuncs02_driver_igc.org This patchset implement RX-hash as a simple u32 value (as this is the current kfunc API), but my experience with RX-hash is that we will also need to provide the Hash-type for this raw value to be useful to BPF-developers. This will be addressed in followup work once this patchset lands. --- Jesper Dangaard Brouer (6): igc: enable and fix RX hash usage by netstack selftests/bpf: xdp_hw_metadata track more timestamps selftests/bpf: xdp_hw_metadata RX hash return code info igc: add igc_xdp_buff wrapper for xdp_buff in driver igc: add XDP hints kfuncs for RX timestamp igc: add XDP hints kfuncs for RX hash drivers/net/ethernet/intel/igc/igc.h | 35 +++++++ drivers/net/ethernet/intel/igc/igc_main.c | 94 ++++++++++++++++--- .../selftests/bpf/progs/xdp_hw_metadata.c | 18 ++-- tools/testing/selftests/bpf/xdp_hw_metadata.c | 51 ++++++++-- tools/testing/selftests/bpf/xdp_metadata.h | 1 + 5 files changed, 176 insertions(+), 23 deletions(-) --