From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (unknown [192.55.52.93]) by mail.toke.dk (Postfix) with ESMTPS id 9E1A8A1CBC3 for ; Fri, 28 Jul 2023 19:44:38 +0200 (CEST) Authentication-Results: mail.toke.dk; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=V4yHmtOQ DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1690566278; x=1722102278; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=GKGOawcn7PhFz576lPTLK52fr6rLUl41RfHTjbVuL+U=; b=V4yHmtOQ9Ax4FWz1rC/AK3pptei5gLvzEGOCRXG9o0Ja9b27U34DcT0L HcIBok92mIzHnNuY/qsu4on/2M/4+fuk90/tf+m5W+SgDo2gGKe6onGdU +QHk7NJJ4CGstrYIfNVUJTB4W4JW3GQzsJUpEjM3+DESyY0zffvrCvZFI euH2H7FZ7MRTvpKQtHdJyEUBhexvoeljQSkSCwGr/pg6O0ybzS/3+2Ib8 98C151eop94tyGE72VbwQh1CoaAU7Y2mm3vURzQRXATpl0zduR1bOYGsC ONuHxF+tl76eKY3ghsLnzOqZ0a5HKe6tZqsiMBUdUOR0H49U3wrZRnny/ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10784"; a="366117244" X-IronPort-AV: E=Sophos;i="6.01,238,1684825200"; d="scan'208";a="366117244" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jul 2023 10:44:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10784"; a="851294512" X-IronPort-AV: E=Sophos;i="6.01,238,1684825200"; d="scan'208";a="851294512" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga004.jf.intel.com with ESMTP; 28 Jul 2023 10:43:57 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 6D5C237E1F; Fri, 28 Jul 2023 18:43:55 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org Message-ID: <20230728173923.1318596-1-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-MailFrom: larysa.zaremba@intel.com X-Mailman-Rule-Hits: no-subject 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; digests; suspicious-header Message-ID-Hash: LDFEA4WNXEOZGXO6MUY2NK2YA5RO5SRB X-Message-ID-Hash: LDFEA4WNXEOZGXO6MUY2NK2YA5RO5SRB X-Mailman-Approved-At: Sat, 05 Aug 2023 13:57:34 +0200 CC: Larysa Zaremba , ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, David Ahern , Jakub Kicinski , Willem de Bruijn , Jesper Dangaard Brouer , Anatoly Burakov , Alexander Lobakin , Magnus Karlsson , Maryam Tahhan , xdp-hints@xdp-project.net, netdev@vger.kernel.org, Willem de Bruijn , Alexei Starovoitov , Simon Horman X-Mailman-Version: 3.3.8 Precedence: list Subject: [xdp-hints] (no subject) List-Id: XDP hardware hints design discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Date: Fri, 28 Jul 2023 17:44:39 X-Original-Date: Fri, 28 Jul 2023 19:39:02 +0200 Date: Fri, 28 Jul 2023 19:10:32 +0200 Subject: [PATCH bpf-next v4 00/21] XDP metadata via kfuncs for ice MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This series introduces XDP hints via kfuncs [0] to the ice driver. Series brings the following existing hints to the ice driver: - HW timestamp - RX hash with type Series also introduces new hints and adds their implementation to ice and veth: - VLAN tag with protocol - Checksum status The data above can now be accessed by XDP and userspace (AF_XDP) programs. They can also be checked with xdp_metadata test and xdp_hw_metadata program. [0] https://patchwork.kernel.org/project/netdevbpf/cover/20230119221536.3349901-1-sdf@google.com/ v3: https://lore.kernel.org/bpf/20230719183734.21681-1-larysa.zaremba@intel.com/ v2: https://lore.kernel.org/bpf/20230703181226.19380-1-larysa.zaremba@intel.com/ v1: https://lore.kernel.org/all/20230512152607.992209-1-larysa.zaremba@intel.com/ Changes since v3: - use XDP_CHECKSUM_VALID_LVL0 + csum_level instead of csum_level + 1 - fix spelling mistakes - read XDP timestamp unconditionally - add TO_STR() macro Changes since v2: - redesign checksum hint, so now it gives full status - rename vlan_tag -> vlan_tci, where applicable - use open_netns() and close_netns() in xdp_metadata - improve VLAN hint documentation - replace CFI with DEI - use VLAN_VID_MASK in xdp_metadata - make vlan_get_tag() return -ENODATA - remove unused rx_ptype in ice_xsk.c - fix ice timestamp code division between patches Changes since v1: - directly return RX hash, RX timestamp and RX checksum status in skb-common functions - use intermediate enum value for checksum status in ice - get rid of ring structure dependency in ice kfunc implementation - make variables const, when possible, in ice implementation - use -ENODATA instead of -EOPNOTSUPP for driver implementation - instead of having 2 separate functions for c-tag and s-tag, use 1 function that outputs both VLAN tag and protocol ID - improve documentation for introduced hints - update xdp_metadata selftest to test new hints - implement new hints in veth, so they can be tested in xdp_metadata - parse VLAN tag in xdp_hw_metadata Aleksander Lobakin (1): net, xdp: allow metadata > 32 Larysa Zaremba (17): ice: make RX hash reading code more reusable ice: make RX HW timestamp reading code more reusable ice: make RX checksum checking code more reusable ice: Make ptype internal to descriptor info processing ice: Introduce ice_xdp_buff ice: Support HW timestamp hint ice: Support RX hash XDP hint ice: Support XDP hints in AF_XDP ZC mode xdp: Add VLAN tag hint ice: Implement VLAN tag hint ice: use VLAN proto from ring packet context in skb path xdp: Add checksum hint ice: Implement checksum hint selftests/bpf: Allow VLAN packets in xdp_hw_metadata selftests/bpf: Add flags and new hints to xdp_hw_metadata veth: Implement VLAN tag and checksum XDP hint net: make vlan_get_tag() return -ENODATA instead of -EINVAL Yonghong Song (3): docs/bpf: Add documentation for new instructions bpf: Fix compilation warning with -Wparentheses selftests/bpf: Enable test test_progs-cpuv4 for gcc build kernel -- 2.41.0