From patchwork Thu Oct 12 17:05:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419489 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 F1E8630CFD; Thu, 12 Oct 2023 17:12:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="keWObJNt" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87DACC0; Thu, 12 Oct 2023 10:12:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697130761; x=1728666761; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=U4CnrcnuYoc2jJmfpS5RjlaIk68wYTv9Od645Z+g6PU=; b=keWObJNto+YKVmd7g8M8peGL8xaZdP86LayVu/3a+8JzS4+oquWU4yO/ QZAh2y4b7oIsq55Pobh6DL3QU73ZO5wpPKnqUaEYPipW5lK2eriwo/Hvd b7julAot0kCFJuZ+6k4rWQF8YKOnpeO5t0azf+bRdV7YgB/FefWnitsbx r/gyAcJeriM0BAgLw4ke3PSStD3IMiMt9BWsFx4AjAYRvO7pxeHjBU8gf 28bLeKvwP/d3Q3XKnrO8ZlpgfTpWBcbjp/Ts4ZN8zACZtoJWWpq08ldpe qI2hOrYuLaq/g4WhnquRXKPCD9ofq6V26oKp1gTTvl9NK41aagsO6ZlIZ w==; X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="416027538" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027538" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:11:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783773917" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783773917" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:11:50 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 8A70533E8C; Thu, 12 Oct 2023 18:11:47 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 01/18] ice: make RX hash reading code more reusable Date: Thu, 12 Oct 2023 19:05:07 +0200 Message-ID: <20231012170524.21085-2-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Previously, we only needed RX hash in skb path, hence all related code was written with skb in mind. But with the addition of XDP hints via kfuncs to the ice driver, the same logic will be needed in .xmo_() callbacks. Separate generic process of reading RX hash from a descriptor into a separate function. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 36 +++++++++++++------ 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index c8322fb6f2b3..987050dacead 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -63,28 +63,42 @@ static enum pkt_hash_types ice_ptype_to_htype(u16 ptype) } /** - * ice_rx_hash - set the hash value in the skb + * ice_get_rx_hash - get RX hash value from descriptor + * @rx_desc: specific descriptor + * + * Returns hash, if present, 0 otherwise. + */ +static u32 ice_get_rx_hash(const union ice_32b_rx_flex_desc *rx_desc) +{ + const struct ice_32b_rx_flex_desc_nic *nic_mdid; + + if (unlikely(rx_desc->wb.rxdid != ICE_RXDID_FLEX_NIC)) + return 0; + + nic_mdid = (struct ice_32b_rx_flex_desc_nic *)rx_desc; + return le32_to_cpu(nic_mdid->rss_hash); +} + +/** + * ice_rx_hash_to_skb - set the hash value in the skb * @rx_ring: descriptor ring * @rx_desc: specific descriptor * @skb: pointer to current skb * @rx_ptype: the ptype value from the descriptor */ static void -ice_rx_hash(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, - struct sk_buff *skb, u16 rx_ptype) +ice_rx_hash_to_skb(const struct ice_rx_ring *rx_ring, + const union ice_32b_rx_flex_desc *rx_desc, + struct sk_buff *skb, u16 rx_ptype) { - struct ice_32b_rx_flex_desc_nic *nic_mdid; u32 hash; if (!(rx_ring->netdev->features & NETIF_F_RXHASH)) return; - if (rx_desc->wb.rxdid != ICE_RXDID_FLEX_NIC) - return; - - nic_mdid = (struct ice_32b_rx_flex_desc_nic *)rx_desc; - hash = le32_to_cpu(nic_mdid->rss_hash); - skb_set_hash(skb, hash, ice_ptype_to_htype(rx_ptype)); + hash = ice_get_rx_hash(rx_desc); + if (likely(hash)) + skb_set_hash(skb, hash, ice_ptype_to_htype(rx_ptype)); } /** @@ -186,7 +200,7 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb, u16 ptype) { - ice_rx_hash(rx_ring, rx_desc, skb, ptype); + ice_rx_hash_to_skb(rx_ring, rx_desc, skb, ptype); /* modifies the skb - consumes the enet header */ skb->protocol = eth_type_trans(skb, rx_ring->netdev); From patchwork Thu Oct 12 17:05:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419493 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 A3274347A0; 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a="416027588" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027588" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783773940" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783773940" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:11:53 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 7017533E93; Thu, 12 Oct 2023 18:11:51 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 02/18] ice: make RX HW timestamp reading code more reusable Date: Thu, 12 Oct 2023 19:05:08 +0200 Message-ID: <20231012170524.21085-3-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Previously, we only needed RX HW timestamp in skb path, hence all related code was written with skb in mind. But with the addition of XDP hints via kfuncs to the ice driver, the same logic will be needed in .xmo_() callbacks. Put generic process of reading RX HW timestamp from a descriptor into a separate function. Move skb-related code into another source file. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_ptp.c | 20 ++++++----------- drivers/net/ethernet/intel/ice/ice_ptp.h | 16 +++++++++----- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 22 ++++++++++++++++++- 3 files changed, 38 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 05f922d3b316..e24c17789cf5 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -2168,30 +2168,26 @@ int ice_ptp_set_ts_config(struct ice_pf *pf, struct ifreq *ifr) } /** - * ice_ptp_rx_hwtstamp - Check for an Rx timestamp - * @rx_ring: Ring to get the VSI info + * ice_ptp_get_rx_hwts - Get packet Rx timestamp in ns * @rx_desc: Receive descriptor - * @skb: Particular skb to send timestamp with + * @rx_ring: Ring to get the cached time * * The driver receives a notification in the receive descriptor with timestamp. - * The timestamp is in ns, so we must convert the result first. */ -void -ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, - union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) +u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, + struct ice_rx_ring *rx_ring) { - struct skb_shared_hwtstamps *hwtstamps; u64 ts_ns, cached_time; u32 ts_high; if (!(rx_desc->wb.time_stamp_low & ICE_PTP_TS_VALID)) - return; + return 0; cached_time = READ_ONCE(rx_ring->cached_phctime); /* Do not report a timestamp if we don't have a cached PHC time */ if (!cached_time) - return; + return 0; /* Use ice_ptp_extend_32b_ts directly, using the ring-specific cached * PHC value, rather than accessing the PF. This also allows us to @@ -2202,9 +2198,7 @@ ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, ts_high = le32_to_cpu(rx_desc->wb.flex_ts.ts_high); ts_ns = ice_ptp_extend_32b_ts(cached_time, ts_high); - hwtstamps = skb_hwtstamps(skb); - memset(hwtstamps, 0, sizeof(*hwtstamps)); - hwtstamps->hwtstamp = ns_to_ktime(ts_ns); + return ts_ns; } /** diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 995a57019ba7..8ebdf422752a 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -268,9 +268,8 @@ void ice_ptp_extts_event(struct ice_pf *pf); s8 ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb); enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); -void -ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, - union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb); +u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, + struct ice_rx_ring *rx_ring); void ice_ptp_reset(struct ice_pf *pf); void ice_ptp_prepare_for_reset(struct ice_pf *pf); void ice_ptp_init(struct ice_pf *pf); @@ -304,9 +303,14 @@ static inline bool ice_ptp_process_ts(struct ice_pf *pf) { return true; } -static inline void -ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, - union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) { } + +static inline u64 +ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, + struct ice_rx_ring *rx_ring) +{ + return 0; +} + static inline void ice_ptp_reset(struct ice_pf *pf) { } static inline void ice_ptp_prepare_for_reset(struct ice_pf *pf) { } static inline void ice_ptp_init(struct ice_pf *pf) { } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 987050dacead..95c29181301b 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -184,6 +184,26 @@ ice_rx_csum(struct ice_rx_ring *ring, struct sk_buff *skb, ring->vsi->back->hw_csum_rx_error++; } +/** + * ice_ptp_rx_hwts_to_skb - Put RX timestamp into skb + * @rx_ring: Ring to get the VSI info + * @rx_desc: Receive descriptor + * @skb: Particular skb to send timestamp with + * + * The timestamp is in ns, so we must convert the result first. + */ +static void +ice_ptp_rx_hwts_to_skb(struct ice_rx_ring *rx_ring, + const union ice_32b_rx_flex_desc *rx_desc, + struct sk_buff *skb) +{ + u64 ts_ns = ice_ptp_get_rx_hwts(rx_desc, rx_ring); + + *skb_hwtstamps(skb) = (struct skb_shared_hwtstamps){ + .hwtstamp = ns_to_ktime(ts_ns), + }; +} + /** * ice_process_skb_fields - Populate skb header fields from Rx descriptor * @rx_ring: Rx descriptor ring packet is being transacted on @@ -208,7 +228,7 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, ice_rx_csum(rx_ring, skb, rx_desc, ptype); if (rx_ring->ptp_rx) - ice_ptp_rx_hwtstamp(rx_ring, rx_desc, skb); + ice_ptp_rx_hwts_to_skb(rx_ring, rx_desc, skb); } /** From patchwork Thu Oct 12 17:05:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419494 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 1428F347CE; 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a="416027600" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027600" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783773962" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783773962" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:11:56 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 0AF0B33BFF; Thu, 12 Oct 2023 18:11:53 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 03/18] ice: Make ptype internal to descriptor info processing Date: Thu, 12 Oct 2023 19:05:09 +0200 Message-ID: <20231012170524.21085-4-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Currently, rx_ptype variable is used only as an argument to ice_process_skb_fields() and is computed just before the function call. Therefore, there is no reason to pass this value as an argument. Instead, remove this argument and compute the value directly inside ice_process_skb_fields() function. Also, separate its calculation into a short function, so the code can later be reused in .xmo_() callbacks. Reviewed-by: Maciej Fijalkowski Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_txrx.c | 6 +----- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 15 +++++++++++++-- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 2 +- drivers/net/ethernet/intel/ice/ice_xsk.c | 6 +----- 4 files changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 52d0a126eb61..40f2f6dabb81 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -1181,7 +1181,6 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) unsigned int size; u16 stat_err_bits; u16 vlan_tag = 0; - u16 rx_ptype; /* get the Rx desc from Rx ring based on 'next_to_clean' */ rx_desc = ICE_RX_DESC(rx_ring, ntc); @@ -1286,10 +1285,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) total_rx_bytes += skb->len; /* populate checksum, VLAN, and protocol */ - rx_ptype = le16_to_cpu(rx_desc->wb.ptype_flex_flags0) & - ICE_RX_FLEX_DESC_PTYPE_M; - - ice_process_skb_fields(rx_ring, rx_desc, skb, rx_ptype); + ice_process_skb_fields(rx_ring, rx_desc, skb); ice_trace(clean_rx_irq_indicate, rx_ring, rx_desc, skb); /* send completed skb up the stack */ diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 95c29181301b..8b5cee0429d3 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -204,12 +204,21 @@ ice_ptp_rx_hwts_to_skb(struct ice_rx_ring *rx_ring, }; } +/** + * ice_get_ptype - Read HW packet type from the descriptor + * @rx_desc: RX descriptor + */ +static u16 ice_get_ptype(const union ice_32b_rx_flex_desc *rx_desc) +{ + return le16_to_cpu(rx_desc->wb.ptype_flex_flags0) & + ICE_RX_FLEX_DESC_PTYPE_M; +} + /** * ice_process_skb_fields - Populate skb header fields from Rx descriptor * @rx_ring: Rx descriptor ring packet is being transacted on * @rx_desc: pointer to the EOP Rx descriptor * @skb: pointer to current skb being populated - * @ptype: the packet type decoded by hardware * * This function checks the ring, descriptor, and packet information in * order to populate the hash, checksum, VLAN, protocol, and @@ -218,8 +227,10 @@ ice_ptp_rx_hwts_to_skb(struct ice_rx_ring *rx_ring, void ice_process_skb_fields(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, - struct sk_buff *skb, u16 ptype) + struct sk_buff *skb) { + u16 ptype = ice_get_ptype(rx_desc); + ice_rx_hash_to_skb(rx_ring, rx_desc, skb, ptype); /* modifies the skb - consumes the enet header */ diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h index 115969ecdf7b..e1d49e1235b3 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h @@ -148,7 +148,7 @@ void ice_release_rx_desc(struct ice_rx_ring *rx_ring, u16 val); void ice_process_skb_fields(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, - struct sk_buff *skb, u16 ptype); + struct sk_buff *skb); void ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag); #endif /* !_ICE_TXRX_LIB_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 2a3f0834e139..ef778b8e6d1b 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -870,7 +870,6 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) struct sk_buff *skb; u16 stat_err_bits; u16 vlan_tag = 0; - u16 rx_ptype; rx_desc = ICE_RX_DESC(rx_ring, ntc); @@ -950,10 +949,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) vlan_tag = ice_get_vlan_tag_from_rx_desc(rx_desc); - rx_ptype = le16_to_cpu(rx_desc->wb.ptype_flex_flags0) & - ICE_RX_FLEX_DESC_PTYPE_M; - - ice_process_skb_fields(rx_ring, rx_desc, skb, rx_ptype); + ice_process_skb_fields(rx_ring, rx_desc, skb); ice_receive_skb(rx_ring, skb, vlan_tag); } From patchwork Thu Oct 12 17:05:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419495 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 6444A34CEC; Thu, 12 Oct 2023 17:12:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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12 Oct 2023 10:12:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774008" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774008" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:00 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id EF78633E95; Thu, 12 Oct 2023 18:11:56 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 04/18] ice: Introduce ice_xdp_buff Date: Thu, 12 Oct 2023 19:05:10 +0200 Message-ID: <20231012170524.21085-5-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net In order to use XDP hints via kfuncs we need to put RX descriptor and ring pointers just next to xdp_buff. Same as in hints implementations in other drivers, we achieve this through putting xdp_buff into a child structure. Currently, xdp_buff is stored in the ring structure, so replace it with union that includes child structure. This way enough memory is available while existing XDP code remains isolated from hints. Minimum size of the new child structure (ice_xdp_buff) is exactly 64 bytes (single cache line). To place it at the start of a cache line, move 'next' field from CL1 to CL3, as it isn't used often. This still leaves 128 bits available in CL3 for packet context extensions. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_txrx.c | 7 +++-- drivers/net/ethernet/intel/ice/ice_txrx.h | 26 ++++++++++++++++--- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 10 +++++++ 3 files changed, 38 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 40f2f6dabb81..4e6546d9cf85 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -557,13 +557,14 @@ ice_rx_frame_truesize(struct ice_rx_ring *rx_ring, const unsigned int size) * @xdp_prog: XDP program to run * @xdp_ring: ring to be used for XDP_TX action * @rx_buf: Rx buffer to store the XDP action + * @eop_desc: Last descriptor in packet to read metadata from * * Returns any of ICE_XDP_{PASS, CONSUMED, TX, REDIR} */ static void ice_run_xdp(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp, struct bpf_prog *xdp_prog, struct ice_tx_ring *xdp_ring, - struct ice_rx_buf *rx_buf) + struct ice_rx_buf *rx_buf, union ice_32b_rx_flex_desc *eop_desc) { unsigned int ret = ICE_XDP_PASS; u32 act; @@ -571,6 +572,8 @@ ice_run_xdp(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp, if (!xdp_prog) goto exit; + ice_xdp_meta_set_desc(xdp, eop_desc); + act = bpf_prog_run_xdp(xdp_prog, xdp); switch (act) { case XDP_PASS: @@ -1240,7 +1243,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) if (ice_is_non_eop(rx_ring, rx_desc)) continue; - ice_run_xdp(rx_ring, xdp, xdp_prog, xdp_ring, rx_buf); + ice_run_xdp(rx_ring, xdp, xdp_prog, xdp_ring, rx_buf, rx_desc); if (rx_buf->act == ICE_XDP_PASS) goto construct_skb; total_rx_bytes += xdp_get_buff_len(xdp); diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index 166413fc33f4..d0ab2c4c0c91 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -257,6 +257,18 @@ enum ice_rx_dtype { ICE_RX_DTYPE_SPLIT_ALWAYS = 2, }; +struct ice_pkt_ctx { + const union ice_32b_rx_flex_desc *eop_desc; +}; + +struct ice_xdp_buff { + struct xdp_buff xdp_buff; + struct ice_pkt_ctx pkt_ctx; +}; + +/* Required for compatibility with xdp_buffs from xsk_pool */ +static_assert(offsetof(struct ice_xdp_buff, xdp_buff) == 0); + /* indices into GLINT_ITR registers */ #define ICE_RX_ITR ICE_IDX_ITR0 #define ICE_TX_ITR ICE_IDX_ITR1 @@ -298,7 +310,6 @@ enum ice_dynamic_itr { /* descriptor ring, associated with a VSI */ struct ice_rx_ring { /* CL1 - 1st cacheline starts here */ - struct ice_rx_ring *next; /* pointer to next ring in q_vector */ void *desc; /* Descriptor ring memory */ struct device *dev; /* Used for DMA mapping */ struct net_device *netdev; /* netdev ring maps to */ @@ -310,12 +321,19 @@ struct ice_rx_ring { u16 count; /* Number of descriptors */ u16 reg_idx; /* HW register index of the ring */ u16 next_to_alloc; - /* CL2 - 2nd cacheline starts here */ + union { struct ice_rx_buf *rx_buf; struct xdp_buff **xdp_buf; }; - struct xdp_buff xdp; + /* CL2 - 2nd cacheline starts here */ + union { + struct ice_xdp_buff xdp_ext; + struct { + struct xdp_buff xdp; + struct ice_pkt_ctx pkt_ctx; + }; + }; /* CL3 - 3rd cacheline starts here */ struct bpf_prog *xdp_prog; u16 rx_offset; @@ -325,6 +343,8 @@ struct ice_rx_ring { u16 next_to_clean; u16 first_desc; + struct ice_rx_ring *next; /* pointer to next ring in q_vector */ + /* stats structs */ struct ice_ring_stats *ring_stats; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h index e1d49e1235b3..145883eec129 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h @@ -151,4 +151,14 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, struct sk_buff *skb); void ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag); + +static inline void +ice_xdp_meta_set_desc(struct xdp_buff *xdp, + union ice_32b_rx_flex_desc *eop_desc) +{ + struct ice_xdp_buff *xdp_ext = container_of(xdp, struct ice_xdp_buff, + xdp_buff); + + xdp_ext->pkt_ctx.eop_desc = eop_desc; +} #endif /* !_ICE_TXRX_LIB_H_ */ From patchwork Thu Oct 12 17:05:11 2023 Content-Type: text/plain; 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Thu, 12 Oct 2023 18:11:59 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 05/18] ice: Support HW timestamp hint Date: Thu, 12 Oct 2023 19:05:11 +0200 Message-ID: <20231012170524.21085-6-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Use previously refactored code and create a function that allows XDP code to read HW timestamp. Also, move cached_phctime into packet context, this way this data still stays in the ring structure, just at the different address. HW timestamp is the first supported hint in the driver, so also add xdp_metadata_ops. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice.h | 2 ++ drivers/net/ethernet/intel/ice/ice_ethtool.c | 2 +- drivers/net/ethernet/intel/ice/ice_lib.c | 2 +- drivers/net/ethernet/intel/ice/ice_main.c | 1 + drivers/net/ethernet/intel/ice/ice_ptp.c | 9 ++++--- drivers/net/ethernet/intel/ice/ice_ptp.h | 4 +-- drivers/net/ethernet/intel/ice/ice_txrx.h | 2 +- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 25 ++++++++++++++++++- 8 files changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index d30ae39c19f0..3d0f15f8b2b8 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -974,4 +974,6 @@ static inline void ice_clear_rdma_cap(struct ice_pf *pf) set_bit(ICE_FLAG_UNPLUG_AUX_DEV, pf->flags); clear_bit(ICE_FLAG_RDMA_ENA, pf->flags); } + +extern const struct xdp_metadata_ops ice_xdp_md_ops; #endif /* _ICE_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index ad4d4702129f..f740e0ad0e3c 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -2846,7 +2846,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, /* clone ring and setup updated count */ rx_rings[i] = *vsi->rx_rings[i]; rx_rings[i].count = new_rx_cnt; - rx_rings[i].cached_phctime = pf->ptp.cached_phc_time; + rx_rings[i].pkt_ctx.cached_phctime = pf->ptp.cached_phc_time; rx_rings[i].desc = NULL; rx_rings[i].rx_buf = NULL; /* this is to allow wr32 to have something to write to diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 1549890a3cbf..b4cbd2f01a39 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1456,7 +1456,7 @@ static int ice_vsi_alloc_rings(struct ice_vsi *vsi) ring->netdev = vsi->netdev; ring->dev = dev; ring->count = vsi->num_rx_desc; - ring->cached_phctime = pf->ptp.cached_phc_time; + ring->pkt_ctx.cached_phctime = pf->ptp.cached_phc_time; WRITE_ONCE(vsi->rx_rings[i], ring); } diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index e22f41fea8db..2153e27642eb 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3396,6 +3396,7 @@ static void ice_set_ops(struct ice_vsi *vsi) netdev->netdev_ops = &ice_netdev_ops; netdev->udp_tunnel_nic_info = &pf->hw.udp_tunnel_nic; + netdev->xdp_metadata_ops = &ice_xdp_md_ops; ice_set_ethtool_ops(netdev); if (vsi->type != ICE_VSI_PF) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index e24c17789cf5..8aad4aff6b30 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1038,7 +1038,8 @@ static int ice_ptp_update_cached_phctime(struct ice_pf *pf) ice_for_each_rxq(vsi, j) { if (!vsi->rx_rings[j]) continue; - WRITE_ONCE(vsi->rx_rings[j]->cached_phctime, systime); + WRITE_ONCE(vsi->rx_rings[j]->pkt_ctx.cached_phctime, + systime); } } clear_bit(ICE_CFG_BUSY, pf->state); @@ -2170,12 +2171,12 @@ int ice_ptp_set_ts_config(struct ice_pf *pf, struct ifreq *ifr) /** * ice_ptp_get_rx_hwts - Get packet Rx timestamp in ns * @rx_desc: Receive descriptor - * @rx_ring: Ring to get the cached time + * @pkt_ctx: Packet context to get the cached time * * The driver receives a notification in the receive descriptor with timestamp. */ u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, - struct ice_rx_ring *rx_ring) + const struct ice_pkt_ctx *pkt_ctx) { u64 ts_ns, cached_time; u32 ts_high; @@ -2183,7 +2184,7 @@ u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, if (!(rx_desc->wb.time_stamp_low & ICE_PTP_TS_VALID)) return 0; - cached_time = READ_ONCE(rx_ring->cached_phctime); + cached_time = READ_ONCE(pkt_ctx->cached_phctime); /* Do not report a timestamp if we don't have a cached PHC time */ if (!cached_time) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 8ebdf422752a..5e6240920821 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -269,7 +269,7 @@ s8 ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb); enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, - struct ice_rx_ring *rx_ring); + const struct ice_pkt_ctx *pkt_ctx); void ice_ptp_reset(struct ice_pf *pf); void ice_ptp_prepare_for_reset(struct ice_pf *pf); void ice_ptp_init(struct ice_pf *pf); @@ -306,7 +306,7 @@ static inline bool ice_ptp_process_ts(struct ice_pf *pf) static inline u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, - struct ice_rx_ring *rx_ring) + const struct ice_pkt_ctx *pkt_ctx) { return 0; } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index d0ab2c4c0c91..4237702a58a9 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -259,6 +259,7 @@ enum ice_rx_dtype { struct ice_pkt_ctx { const union ice_32b_rx_flex_desc *eop_desc; + u64 cached_phctime; }; struct ice_xdp_buff { @@ -354,7 +355,6 @@ struct ice_rx_ring { struct ice_tx_ring *xdp_ring; struct xsk_buff_pool *xsk_pool; dma_addr_t dma; /* physical address of ring */ - u64 cached_phctime; u16 rx_buf_len; u8 dcb_tc; /* Traffic class of ring */ u8 ptp_rx; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 8b5cee0429d3..7e9f3528d6b5 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -197,7 +197,7 @@ ice_ptp_rx_hwts_to_skb(struct ice_rx_ring *rx_ring, const union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) { - u64 ts_ns = ice_ptp_get_rx_hwts(rx_desc, rx_ring); + u64 ts_ns = ice_ptp_get_rx_hwts(rx_desc, &rx_ring->pkt_ctx); *skb_hwtstamps(skb) = (struct skb_shared_hwtstamps){ .hwtstamp = ns_to_ktime(ts_ns), @@ -509,3 +509,26 @@ void ice_finalize_xdp_rx(struct ice_tx_ring *xdp_ring, unsigned int xdp_res, spin_unlock(&xdp_ring->tx_lock); } } + +/** + * ice_xdp_rx_hw_ts - HW timestamp XDP hint handler + * @ctx: XDP buff pointer + * @ts_ns: destination address + * + * Copy HW timestamp (if available) to the destination address. + */ +static int ice_xdp_rx_hw_ts(const struct xdp_md *ctx, u64 *ts_ns) +{ + const struct ice_xdp_buff *xdp_ext = (void *)ctx; + + *ts_ns = ice_ptp_get_rx_hwts(xdp_ext->pkt_ctx.eop_desc, + &xdp_ext->pkt_ctx); + if (!*ts_ns) + return -ENODATA; + + return 0; +} + +const struct xdp_metadata_ops ice_xdp_md_ops = { + .xmo_rx_timestamp = ice_xdp_rx_hw_ts, +}; From patchwork Thu Oct 12 17:05:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419500 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 2DAAB36AF2; 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a="416027693" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027693" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774044" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774044" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:05 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id AC03933E93; Thu, 12 Oct 2023 18:12:02 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 06/18] ice: Support RX hash XDP hint Date: Thu, 12 Oct 2023 19:05:12 +0200 Message-ID: <20231012170524.21085-7-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, UPPERCASE_50_75 autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net RX hash XDP hint requests both hash value and type. Type is XDP-specific, so we need a separate way to map these values to the hardware ptypes, so create a lookup table. Instead of creating a new long list, reuse contents of ice_decode_rx_desc_ptype[] through preprocessor. Current hash type enum does not contain ICMP packet type, but ice devices support it, so also add a new type into core code. Then use previously refactored code and create a function that allows XDP code to read RX hash. Signed-off-by: Larysa Zaremba --- .../net/ethernet/intel/ice/ice_lan_tx_rx.h | 412 +++++++++--------- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 73 ++++ include/net/xdp.h | 3 + 3 files changed, 284 insertions(+), 204 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h index 89f986a75cc8..d384ddfcb83e 100644 --- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h +++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h @@ -673,6 +673,212 @@ struct ice_tlan_ctx { * Use the enum ice_rx_l2_ptype to decode the packet type * ENDIF */ +#define ICE_PTYPES \ + /* L2 Packet types */ \ + ICE_PTT_UNUSED_ENTRY(0), \ + ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2), \ + ICE_PTT_UNUSED_ENTRY(2), \ + ICE_PTT_UNUSED_ENTRY(3), \ + ICE_PTT_UNUSED_ENTRY(4), \ + ICE_PTT_UNUSED_ENTRY(5), \ + ICE_PTT(6, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \ + ICE_PTT(7, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \ + ICE_PTT_UNUSED_ENTRY(8), \ + ICE_PTT_UNUSED_ENTRY(9), \ + ICE_PTT(10, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \ + ICE_PTT(11, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), \ + ICE_PTT_UNUSED_ENTRY(12), \ + ICE_PTT_UNUSED_ENTRY(13), \ + ICE_PTT_UNUSED_ENTRY(14), \ + ICE_PTT_UNUSED_ENTRY(15), \ + ICE_PTT_UNUSED_ENTRY(16), \ + ICE_PTT_UNUSED_ENTRY(17), \ + ICE_PTT_UNUSED_ENTRY(18), \ + ICE_PTT_UNUSED_ENTRY(19), \ + ICE_PTT_UNUSED_ENTRY(20), \ + ICE_PTT_UNUSED_ENTRY(21), \ + \ + /* Non Tunneled IPv4 */ \ + ICE_PTT(22, IP, IPV4, FRG, NONE, NONE, NOF, NONE, PAY3), \ + ICE_PTT(23, IP, IPV4, NOF, NONE, NONE, NOF, NONE, PAY3), \ + ICE_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(25), \ + ICE_PTT(26, IP, IPV4, NOF, NONE, NONE, NOF, TCP, PAY4), \ + ICE_PTT(27, IP, IPV4, NOF, NONE, NONE, NOF, SCTP, PAY4), \ + ICE_PTT(28, IP, IPV4, NOF, NONE, NONE, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> IPv4 */ \ + ICE_PTT(29, IP, IPV4, NOF, IP_IP, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(30, IP, IPV4, NOF, IP_IP, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(32), \ + ICE_PTT(33, IP, IPV4, NOF, IP_IP, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(34, IP, IPV4, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(35, IP, IPV4, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> IPv6 */ \ + ICE_PTT(36, IP, IPV4, NOF, IP_IP, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(37, IP, IPV4, NOF, IP_IP, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(39), \ + ICE_PTT(40, IP, IPV4, NOF, IP_IP, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(41, IP, IPV4, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(42, IP, IPV4, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> GRE/NAT */ \ + ICE_PTT(43, IP, IPV4, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), \ + \ + /* IPv4 --> GRE/NAT --> IPv4 */ \ + ICE_PTT(44, IP, IPV4, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(45, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(47), \ + ICE_PTT(48, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(49, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(50, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> GRE/NAT --> IPv6 */ \ + ICE_PTT(51, IP, IPV4, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(52, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(54), \ + ICE_PTT(55, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(56, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(57, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> GRE/NAT --> MAC */ \ + ICE_PTT(58, IP, IPV4, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), \ + \ + /* IPv4 --> GRE/NAT --> MAC --> IPv4 */ \ + ICE_PTT(59, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(60, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(62), \ + ICE_PTT(63, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(64, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(65, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> GRE/NAT -> MAC --> IPv6 */ \ + ICE_PTT(66, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(67, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(69), \ + ICE_PTT(70, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(71, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(72, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv4 --> GRE/NAT --> MAC/VLAN */ \ + ICE_PTT(73, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), \ + \ + /* IPv4 ---> GRE/NAT -> MAC/VLAN --> IPv4 */ \ + ICE_PTT(74, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(75, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(77), \ + ICE_PTT(78, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(79, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(80, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv4 -> GRE/NAT -> MAC/VLAN --> IPv6 */ \ + ICE_PTT(81, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(82, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(84), \ + ICE_PTT(85, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(86, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(87, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4), \ + \ + /* Non Tunneled IPv6 */ \ + ICE_PTT(88, IP, IPV6, FRG, NONE, NONE, NOF, NONE, PAY3), \ + ICE_PTT(89, IP, IPV6, NOF, NONE, NONE, NOF, NONE, PAY3), \ + ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(91), \ + ICE_PTT(92, IP, IPV6, NOF, NONE, NONE, NOF, TCP, PAY4), \ + ICE_PTT(93, IP, IPV6, NOF, NONE, NONE, NOF, SCTP, PAY4), \ + ICE_PTT(94, IP, IPV6, NOF, NONE, NONE, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> IPv4 */ \ + ICE_PTT(95, IP, IPV6, NOF, IP_IP, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(96, IP, IPV6, NOF, IP_IP, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(97, IP, IPV6, NOF, IP_IP, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(98), \ + ICE_PTT(99, IP, IPV6, NOF, IP_IP, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(100, IP, IPV6, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(101, IP, IPV6, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> IPv6 */ \ + ICE_PTT(102, IP, IPV6, NOF, IP_IP, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(103, IP, IPV6, NOF, IP_IP, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(104, IP, IPV6, NOF, IP_IP, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(105), \ + ICE_PTT(106, IP, IPV6, NOF, IP_IP, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(107, IP, IPV6, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(108, IP, IPV6, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT */ \ + ICE_PTT(109, IP, IPV6, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), \ + \ + /* IPv6 --> GRE/NAT -> IPv4 */ \ + ICE_PTT(110, IP, IPV6, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(111, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(112, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(113), \ + ICE_PTT(114, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(115, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(116, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT -> IPv6 */ \ + ICE_PTT(117, IP, IPV6, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(118, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(119, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(120), \ + ICE_PTT(121, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(122, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(123, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT -> MAC */ \ + ICE_PTT(124, IP, IPV6, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), \ + \ + /* IPv6 --> GRE/NAT -> MAC -> IPv4 */ \ + ICE_PTT(125, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(126, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(127, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(128), \ + ICE_PTT(129, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(130, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(131, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT -> MAC -> IPv6 */ \ + ICE_PTT(132, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(133, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(134, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(135), \ + ICE_PTT(136, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(137, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(138, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT -> MAC/VLAN */ \ + ICE_PTT(139, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), \ + \ + /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv4 */ \ + ICE_PTT(140, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), \ + ICE_PTT(141, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), \ + ICE_PTT(142, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(143), \ + ICE_PTT(144, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), \ + ICE_PTT(145, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), \ + ICE_PTT(146, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), \ + \ + /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv6 */ \ + ICE_PTT(147, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), \ + ICE_PTT(148, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), \ + ICE_PTT(149, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), \ + ICE_PTT_UNUSED_ENTRY(150), \ + ICE_PTT(151, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), \ + ICE_PTT(152, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), \ + ICE_PTT(153, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4), + +#define ICE_NUM_DEFINED_PTYPES 154 /* macro to make the table lines short, use explicit indexing with [PTYPE] */ #define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\ @@ -695,212 +901,10 @@ struct ice_tlan_ctx { /* Lookup table mapping in the 10-bit HW PTYPE to the bit field for decoding */ static const struct ice_rx_ptype_decoded ice_ptype_lkup[BIT(10)] = { - /* L2 Packet types */ - ICE_PTT_UNUSED_ENTRY(0), - ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2), - ICE_PTT_UNUSED_ENTRY(2), - ICE_PTT_UNUSED_ENTRY(3), - ICE_PTT_UNUSED_ENTRY(4), - ICE_PTT_UNUSED_ENTRY(5), - ICE_PTT(6, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), - ICE_PTT(7, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), - ICE_PTT_UNUSED_ENTRY(8), - ICE_PTT_UNUSED_ENTRY(9), - ICE_PTT(10, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), - ICE_PTT(11, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE), - ICE_PTT_UNUSED_ENTRY(12), - ICE_PTT_UNUSED_ENTRY(13), - ICE_PTT_UNUSED_ENTRY(14), - ICE_PTT_UNUSED_ENTRY(15), - ICE_PTT_UNUSED_ENTRY(16), - ICE_PTT_UNUSED_ENTRY(17), - ICE_PTT_UNUSED_ENTRY(18), - ICE_PTT_UNUSED_ENTRY(19), - ICE_PTT_UNUSED_ENTRY(20), - ICE_PTT_UNUSED_ENTRY(21), - - /* Non Tunneled IPv4 */ - ICE_PTT(22, IP, IPV4, FRG, NONE, NONE, NOF, NONE, PAY3), - ICE_PTT(23, IP, IPV4, NOF, NONE, NONE, NOF, NONE, PAY3), - ICE_PTT(24, IP, IPV4, NOF, NONE, NONE, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(25), - ICE_PTT(26, IP, IPV4, NOF, NONE, NONE, NOF, TCP, PAY4), - ICE_PTT(27, IP, IPV4, NOF, NONE, NONE, NOF, SCTP, PAY4), - ICE_PTT(28, IP, IPV4, NOF, NONE, NONE, NOF, ICMP, PAY4), - - /* IPv4 --> IPv4 */ - ICE_PTT(29, IP, IPV4, NOF, IP_IP, IPV4, FRG, NONE, PAY3), - ICE_PTT(30, IP, IPV4, NOF, IP_IP, IPV4, NOF, NONE, PAY3), - ICE_PTT(31, IP, IPV4, NOF, IP_IP, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(32), - ICE_PTT(33, IP, IPV4, NOF, IP_IP, IPV4, NOF, TCP, PAY4), - ICE_PTT(34, IP, IPV4, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), - ICE_PTT(35, IP, IPV4, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), - - /* IPv4 --> IPv6 */ - ICE_PTT(36, IP, IPV4, NOF, IP_IP, IPV6, FRG, NONE, PAY3), - ICE_PTT(37, IP, IPV4, NOF, IP_IP, IPV6, NOF, NONE, PAY3), - ICE_PTT(38, IP, IPV4, NOF, IP_IP, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(39), - ICE_PTT(40, IP, IPV4, NOF, IP_IP, IPV6, NOF, TCP, PAY4), - ICE_PTT(41, IP, IPV4, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), - ICE_PTT(42, IP, IPV4, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), - - /* IPv4 --> GRE/NAT */ - ICE_PTT(43, IP, IPV4, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), - - /* IPv4 --> GRE/NAT --> IPv4 */ - ICE_PTT(44, IP, IPV4, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), - ICE_PTT(45, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), - ICE_PTT(46, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(47), - ICE_PTT(48, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), - ICE_PTT(49, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), - ICE_PTT(50, IP, IPV4, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), - - /* IPv4 --> GRE/NAT --> IPv6 */ - ICE_PTT(51, IP, IPV4, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), - ICE_PTT(52, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), - ICE_PTT(53, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(54), - ICE_PTT(55, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), - ICE_PTT(56, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), - ICE_PTT(57, IP, IPV4, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), - - /* IPv4 --> GRE/NAT --> MAC */ - ICE_PTT(58, IP, IPV4, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), - - /* IPv4 --> GRE/NAT --> MAC --> IPv4 */ - ICE_PTT(59, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), - ICE_PTT(60, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), - ICE_PTT(61, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(62), - ICE_PTT(63, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), - ICE_PTT(64, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), - ICE_PTT(65, IP, IPV4, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), - - /* IPv4 --> GRE/NAT -> MAC --> IPv6 */ - ICE_PTT(66, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), - ICE_PTT(67, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), - ICE_PTT(68, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(69), - ICE_PTT(70, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), - ICE_PTT(71, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), - ICE_PTT(72, IP, IPV4, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), - - /* IPv4 --> GRE/NAT --> MAC/VLAN */ - ICE_PTT(73, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), - - /* IPv4 ---> GRE/NAT -> MAC/VLAN --> IPv4 */ - ICE_PTT(74, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), - ICE_PTT(75, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), - ICE_PTT(76, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(77), - ICE_PTT(78, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), - ICE_PTT(79, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), - ICE_PTT(80, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), - - /* IPv4 -> GRE/NAT -> MAC/VLAN --> IPv6 */ - ICE_PTT(81, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), - ICE_PTT(82, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), - ICE_PTT(83, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(84), - ICE_PTT(85, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), - ICE_PTT(86, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), - ICE_PTT(87, IP, IPV4, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4), - - /* Non Tunneled IPv6 */ - ICE_PTT(88, IP, IPV6, FRG, NONE, NONE, NOF, NONE, PAY3), - ICE_PTT(89, IP, IPV6, NOF, NONE, NONE, NOF, NONE, PAY3), - ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(91), - ICE_PTT(92, IP, IPV6, NOF, NONE, NONE, NOF, TCP, PAY4), - ICE_PTT(93, IP, IPV6, NOF, NONE, NONE, NOF, SCTP, PAY4), - ICE_PTT(94, IP, IPV6, NOF, NONE, NONE, NOF, ICMP, PAY4), - - /* IPv6 --> IPv4 */ - ICE_PTT(95, IP, IPV6, NOF, IP_IP, IPV4, FRG, NONE, PAY3), - ICE_PTT(96, IP, IPV6, NOF, IP_IP, IPV4, NOF, NONE, PAY3), - ICE_PTT(97, IP, IPV6, NOF, IP_IP, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(98), - ICE_PTT(99, IP, IPV6, NOF, IP_IP, IPV4, NOF, TCP, PAY4), - ICE_PTT(100, IP, IPV6, NOF, IP_IP, IPV4, NOF, SCTP, PAY4), - ICE_PTT(101, IP, IPV6, NOF, IP_IP, IPV4, NOF, ICMP, PAY4), - - /* IPv6 --> IPv6 */ - ICE_PTT(102, IP, IPV6, NOF, IP_IP, IPV6, FRG, NONE, PAY3), - ICE_PTT(103, IP, IPV6, NOF, IP_IP, IPV6, NOF, NONE, PAY3), - ICE_PTT(104, IP, IPV6, NOF, IP_IP, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(105), - ICE_PTT(106, IP, IPV6, NOF, IP_IP, IPV6, NOF, TCP, PAY4), - ICE_PTT(107, IP, IPV6, NOF, IP_IP, IPV6, NOF, SCTP, PAY4), - ICE_PTT(108, IP, IPV6, NOF, IP_IP, IPV6, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT */ - ICE_PTT(109, IP, IPV6, NOF, IP_GRENAT, NONE, NOF, NONE, PAY3), - - /* IPv6 --> GRE/NAT -> IPv4 */ - ICE_PTT(110, IP, IPV6, NOF, IP_GRENAT, IPV4, FRG, NONE, PAY3), - ICE_PTT(111, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, NONE, PAY3), - ICE_PTT(112, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(113), - ICE_PTT(114, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, TCP, PAY4), - ICE_PTT(115, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, SCTP, PAY4), - ICE_PTT(116, IP, IPV6, NOF, IP_GRENAT, IPV4, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT -> IPv6 */ - ICE_PTT(117, IP, IPV6, NOF, IP_GRENAT, IPV6, FRG, NONE, PAY3), - ICE_PTT(118, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, NONE, PAY3), - ICE_PTT(119, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(120), - ICE_PTT(121, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, TCP, PAY4), - ICE_PTT(122, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, SCTP, PAY4), - ICE_PTT(123, IP, IPV6, NOF, IP_GRENAT, IPV6, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT -> MAC */ - ICE_PTT(124, IP, IPV6, NOF, IP_GRENAT_MAC, NONE, NOF, NONE, PAY3), - - /* IPv6 --> GRE/NAT -> MAC -> IPv4 */ - ICE_PTT(125, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, FRG, NONE, PAY3), - ICE_PTT(126, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, NONE, PAY3), - ICE_PTT(127, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(128), - ICE_PTT(129, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, TCP, PAY4), - ICE_PTT(130, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, SCTP, PAY4), - ICE_PTT(131, IP, IPV6, NOF, IP_GRENAT_MAC, IPV4, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT -> MAC -> IPv6 */ - ICE_PTT(132, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, FRG, NONE, PAY3), - ICE_PTT(133, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, NONE, PAY3), - ICE_PTT(134, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(135), - ICE_PTT(136, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, TCP, PAY4), - ICE_PTT(137, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, SCTP, PAY4), - ICE_PTT(138, IP, IPV6, NOF, IP_GRENAT_MAC, IPV6, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT -> MAC/VLAN */ - ICE_PTT(139, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, NONE, NOF, NONE, PAY3), - - /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv4 */ - ICE_PTT(140, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, FRG, NONE, PAY3), - ICE_PTT(141, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, NONE, PAY3), - ICE_PTT(142, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(143), - ICE_PTT(144, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, TCP, PAY4), - ICE_PTT(145, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, SCTP, PAY4), - ICE_PTT(146, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV4, NOF, ICMP, PAY4), - - /* IPv6 --> GRE/NAT -> MAC/VLAN --> IPv6 */ - ICE_PTT(147, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, FRG, NONE, PAY3), - ICE_PTT(148, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, NONE, PAY3), - ICE_PTT(149, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, UDP, PAY4), - ICE_PTT_UNUSED_ENTRY(150), - ICE_PTT(151, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, TCP, PAY4), - ICE_PTT(152, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, SCTP, PAY4), - ICE_PTT(153, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4), + ICE_PTYPES /* unused entries */ - [154 ... 1023] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 } + [ICE_NUM_DEFINED_PTYPES ... 1023] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; static inline struct ice_rx_ptype_decoded ice_decode_rx_desc_ptype(u16 ptype) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 7e9f3528d6b5..079b0c18047b 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -529,6 +529,79 @@ static int ice_xdp_rx_hw_ts(const struct xdp_md *ctx, u64 *ts_ns) return 0; } +/* Define a ptype index -> XDP hash type lookup table. + * It uses the same ptype definitions as ice_decode_rx_desc_ptype[], + * avoiding possible copy-paste errors. + */ +#undef ICE_PTT +#undef ICE_PTT_UNUSED_ENTRY + +#define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\ + [PTYPE] = XDP_RSS_L3_##OUTER_IP_VER | XDP_RSS_L4_##I | XDP_RSS_TYPE_##PL + +#define ICE_PTT_UNUSED_ENTRY(PTYPE) [PTYPE] = 0 + +/* A few supplementary definitions for when XDP hash types do not coincide + * with what can be generated from ptype definitions + * by means of preprocessor concatenation. + */ +#define XDP_RSS_L3_NONE XDP_RSS_TYPE_NONE +#define XDP_RSS_L4_NONE XDP_RSS_TYPE_NONE +#define XDP_RSS_TYPE_PAY2 XDP_RSS_TYPE_L2 +#define XDP_RSS_TYPE_PAY3 XDP_RSS_TYPE_NONE +#define XDP_RSS_TYPE_PAY4 XDP_RSS_L4 + +static const enum xdp_rss_hash_type +ice_ptype_to_xdp_hash[ICE_NUM_DEFINED_PTYPES] = { + ICE_PTYPES +}; + +#undef XDP_RSS_L3_NONE +#undef XDP_RSS_L4_NONE +#undef XDP_RSS_TYPE_PAY2 +#undef XDP_RSS_TYPE_PAY3 +#undef XDP_RSS_TYPE_PAY4 + +#undef ICE_PTT +#undef ICE_PTT_UNUSED_ENTRY + +/** + * ice_xdp_rx_hash_type - Get XDP-specific hash type from the RX descriptor + * @eop_desc: End of Packet descriptor + */ +static enum xdp_rss_hash_type +ice_xdp_rx_hash_type(const union ice_32b_rx_flex_desc *eop_desc) +{ + u16 ptype = ice_get_ptype(eop_desc); + + if (unlikely(ptype >= ICE_NUM_DEFINED_PTYPES)) + return 0; + + return ice_ptype_to_xdp_hash[ptype]; +} + +/** + * ice_xdp_rx_hash - RX hash XDP hint handler + * @ctx: XDP buff pointer + * @hash: hash destination address + * @rss_type: XDP hash type destination address + * + * Copy RX hash (if available) and its type to the destination address. + */ +static int ice_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, + enum xdp_rss_hash_type *rss_type) +{ + const struct ice_xdp_buff *xdp_ext = (void *)ctx; + + *hash = ice_get_rx_hash(xdp_ext->pkt_ctx.eop_desc); + *rss_type = ice_xdp_rx_hash_type(xdp_ext->pkt_ctx.eop_desc); + if (!likely(*hash)) + return -ENODATA; + + return 0; +} + const struct xdp_metadata_ops ice_xdp_md_ops = { .xmo_rx_timestamp = ice_xdp_rx_hw_ts, + .xmo_rx_hash = ice_xdp_rx_hash, }; diff --git a/include/net/xdp.h b/include/net/xdp.h index 349c36fb5fd8..eb77040b4825 100644 --- a/include/net/xdp.h +++ b/include/net/xdp.h @@ -427,6 +427,7 @@ enum xdp_rss_hash_type { XDP_RSS_L4_UDP = BIT(5), XDP_RSS_L4_SCTP = BIT(6), XDP_RSS_L4_IPSEC = BIT(7), /* L4 based hash include IPSEC SPI */ + XDP_RSS_L4_ICMP = BIT(8), /* Second part: RSS hash type combinations used for driver HW mapping */ XDP_RSS_TYPE_NONE = 0, @@ -442,11 +443,13 @@ enum xdp_rss_hash_type { XDP_RSS_TYPE_L4_IPV4_UDP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_UDP, XDP_RSS_TYPE_L4_IPV4_SCTP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_SCTP, XDP_RSS_TYPE_L4_IPV4_IPSEC = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC, + XDP_RSS_TYPE_L4_IPV4_ICMP = XDP_RSS_L3_IPV4 | XDP_RSS_L4 | XDP_RSS_L4_ICMP, XDP_RSS_TYPE_L4_IPV6_TCP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_TCP, XDP_RSS_TYPE_L4_IPV6_UDP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_UDP, XDP_RSS_TYPE_L4_IPV6_SCTP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_SCTP, XDP_RSS_TYPE_L4_IPV6_IPSEC = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_IPSEC, + XDP_RSS_TYPE_L4_IPV6_ICMP = XDP_RSS_L3_IPV6 | XDP_RSS_L4 | XDP_RSS_L4_ICMP, XDP_RSS_TYPE_L4_IPV6_TCP_EX = XDP_RSS_TYPE_L4_IPV6_TCP | XDP_RSS_L3_DYNHDR, XDP_RSS_TYPE_L4_IPV6_UDP_EX = XDP_RSS_TYPE_L4_IPV6_UDP | XDP_RSS_L3_DYNHDR, From patchwork Thu Oct 12 17:05:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419496 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 3C43637164; Thu, 12 Oct 2023 17:12:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YJLQGenP" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1DF9BB7; Thu, 12 Oct 2023 10:12:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697130772; x=1728666772; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=XUcK1rwh0PuHKBdk/brR50LjiE2DrMuT31ALE6+YqG8=; 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irvmail002.ir.intel.com (Postfix) with ESMTP id 327A633EA3; Thu, 12 Oct 2023 18:12:06 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 07/18] ice: Support XDP hints in AF_XDP ZC mode Date: Thu, 12 Oct 2023 19:05:13 +0200 Message-ID: <20231012170524.21085-8-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net In AF_XDP ZC, xdp_buff is not stored on ring, instead it is provided by xsk_buff_pool. Space for metadata sources right after such buffers was already reserved in commit 94ecc5ca4dbf ("xsk: Add cb area to struct xdp_buff_xsk"). This makes the implementation rather straightforward. Update AF_XDP ZC packet processing to support XDP hints. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_xsk.c | 34 ++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index ef778b8e6d1b..6ca620b2fbdd 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -752,22 +752,51 @@ static int ice_xmit_xdp_tx_zc(struct xdp_buff *xdp, return ICE_XDP_CONSUMED; } +/** + * ice_prepare_pkt_ctx_zc - Prepare packet context for XDP hints + * @xdp: xdp_buff used as input to the XDP program + * @eop_desc: End of packet descriptor + * @rx_ring: Rx ring with packet context + * + * In regular XDP, xdp_buff is placed inside the ring structure, + * just before the packet context, so the latter can be accessed + * with xdp_buff address only at all times, but in ZC mode, + * xdp_buffs come from the pool, so we need to reinitialize + * context for every packet. + * + * We can safely convert xdp_buff_xsk to ice_xdp_buff, + * because there are XSK_PRIV_MAX bytes reserved in xdp_buff_xsk + * right after xdp_buff, for our private use. + * XSK_CHECK_PRIV_TYPE() ensures we do not go above the limit. + */ +static void ice_prepare_pkt_ctx_zc(struct xdp_buff *xdp, + union ice_32b_rx_flex_desc *eop_desc, + struct ice_rx_ring *rx_ring) +{ + XSK_CHECK_PRIV_TYPE(struct ice_xdp_buff); + ((struct ice_xdp_buff *)xdp)->pkt_ctx = rx_ring->pkt_ctx; + ice_xdp_meta_set_desc(xdp, eop_desc); +} + /** * ice_run_xdp_zc - Executes an XDP program in zero-copy path * @rx_ring: Rx ring * @xdp: xdp_buff used as input to the XDP program * @xdp_prog: XDP program to run * @xdp_ring: ring to be used for XDP_TX action + * @rx_desc: packet descriptor * * Returns any of ICE_XDP_{PASS, CONSUMED, TX, REDIR} */ static int ice_run_xdp_zc(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp, - struct bpf_prog *xdp_prog, struct ice_tx_ring *xdp_ring) + struct bpf_prog *xdp_prog, struct ice_tx_ring *xdp_ring, + union ice_32b_rx_flex_desc *rx_desc) { int err, result = ICE_XDP_PASS; u32 act; + ice_prepare_pkt_ctx_zc(xdp, rx_desc, rx_ring); act = bpf_prog_run_xdp(xdp_prog, xdp); if (likely(act == XDP_REDIRECT)) { @@ -907,7 +936,8 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) if (ice_is_non_eop(rx_ring, rx_desc)) continue; - xdp_res = ice_run_xdp_zc(rx_ring, first, xdp_prog, xdp_ring); + xdp_res = ice_run_xdp_zc(rx_ring, first, xdp_prog, xdp_ring, + rx_desc); if (likely(xdp_res & (ICE_XDP_TX | ICE_XDP_REDIR))) { xdp_xmit |= xdp_res; } else if (xdp_res == ICE_XDP_EXIT) { From patchwork Thu Oct 12 17:05:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419498 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 57B3C38FBF; Thu, 12 Oct 2023 17:12:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="V39jBwi0" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A13D0C6; Thu, 12 Oct 2023 10:12:54 -0700 (PDT) DKIM-Signature: v=1; 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d="scan'208";a="783774053" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:11 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id E248533E95; Thu, 12 Oct 2023 18:12:08 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 08/18] xdp: Add VLAN tag hint Date: Thu, 12 Oct 2023 19:05:14 +0200 Message-ID: <20231012170524.21085-9-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Implement functionality that enables drivers to expose VLAN tag to XDP code. VLAN tag is represented by 2 variables: - protocol ID, which is passed to bpf code in BE - VLAN TCI, in host byte order Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- Documentation/networking/xdp-rx-metadata.rst | 8 ++++- include/net/xdp.h | 6 ++++ include/uapi/linux/netdev.h | 5 ++- net/core/xdp.c | 33 ++++++++++++++++++++ tools/include/uapi/linux/netdev.h | 5 ++- 5 files changed, 54 insertions(+), 3 deletions(-) diff --git a/Documentation/networking/xdp-rx-metadata.rst b/Documentation/networking/xdp-rx-metadata.rst index 205696780b78..bb53b00d1b2c 100644 --- a/Documentation/networking/xdp-rx-metadata.rst +++ b/Documentation/networking/xdp-rx-metadata.rst @@ -18,7 +18,13 @@ Currently, the following kfuncs are supported. In the future, as more metadata is supported, this set will grow: .. kernel-doc:: net/core/xdp.c - :identifiers: bpf_xdp_metadata_rx_timestamp bpf_xdp_metadata_rx_hash + :identifiers: bpf_xdp_metadata_rx_timestamp + +.. kernel-doc:: net/core/xdp.c + :identifiers: bpf_xdp_metadata_rx_hash + +.. kernel-doc:: net/core/xdp.c + :identifiers: bpf_xdp_metadata_rx_vlan_tag An XDP program can use these kfuncs to read the metadata into stack variables for its own consumption. Or, to pass the metadata on to other diff --git a/include/net/xdp.h b/include/net/xdp.h index eb77040b4825..ef79f124dbcf 100644 --- a/include/net/xdp.h +++ b/include/net/xdp.h @@ -399,6 +399,10 @@ void xdp_attachment_setup(struct xdp_attachment_info *info, NETDEV_XDP_RX_METADATA_HASH, \ bpf_xdp_metadata_rx_hash, \ xmo_rx_hash) \ + XDP_METADATA_KFUNC(XDP_METADATA_KFUNC_RX_VLAN_TAG, \ + NETDEV_XDP_RX_METADATA_VLAN_TAG, \ + bpf_xdp_metadata_rx_vlan_tag, \ + xmo_rx_vlan_tag) \ enum xdp_rx_metadata { #define XDP_METADATA_KFUNC(name, _, __, ___) name, @@ -460,6 +464,8 @@ struct xdp_metadata_ops { int (*xmo_rx_timestamp)(const struct xdp_md *ctx, u64 *timestamp); int (*xmo_rx_hash)(const struct xdp_md *ctx, u32 *hash, enum xdp_rss_hash_type *rss_type); + int (*xmo_rx_vlan_tag)(const struct xdp_md *ctx, __be16 *vlan_proto, + u16 *vlan_tci); }; #ifdef CONFIG_NET diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h index 2943a151d4f1..661f603e3e43 100644 --- a/include/uapi/linux/netdev.h +++ b/include/uapi/linux/netdev.h @@ -44,13 +44,16 @@ enum netdev_xdp_act { * timestamp via bpf_xdp_metadata_rx_timestamp(). * @NETDEV_XDP_RX_METADATA_HASH: Device is capable of exposing receive packet * hash via bpf_xdp_metadata_rx_hash(). + * @NETDEV_XDP_RX_METADATA_VLAN_TAG: Device is capable of exposing stripped + * receive VLAN tag (proto and TCI) via bpf_xdp_metadata_rx_vlan_tag(). */ enum netdev_xdp_rx_metadata { NETDEV_XDP_RX_METADATA_TIMESTAMP = 1, NETDEV_XDP_RX_METADATA_HASH = 2, + NETDEV_XDP_RX_METADATA_VLAN_TAG = 4, /* private: */ - NETDEV_XDP_RX_METADATA_MASK = 3, + NETDEV_XDP_RX_METADATA_MASK = 7, }; enum { diff --git a/net/core/xdp.c b/net/core/xdp.c index df4789ab512d..fb87925b3dc3 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -738,6 +738,39 @@ __bpf_kfunc int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, u32 *hash, return -EOPNOTSUPP; } +/** + * bpf_xdp_metadata_rx_vlan_tag - Get XDP packet outermost VLAN tag + * @ctx: XDP context pointer. + * @vlan_proto: Destination pointer for VLAN Tag protocol identifier (TPID). + * @vlan_tci: Destination pointer for VLAN TCI (VID + DEI + PCP) + * + * In case of success, ``vlan_proto`` contains *Tag protocol identifier (TPID)*, + * usually ``ETH_P_8021Q`` or ``ETH_P_8021AD``, but some networks can use + * custom TPIDs. ``vlan_proto`` is stored in **network byte order (BE)** + * and should be used as follows: + * ``if (vlan_proto == bpf_htons(ETH_P_8021Q)) do_something();`` + * + * ``vlan_tci`` contains the remaining 16 bits of a VLAN tag. + * Driver is expected to provide those in **host byte order (usually LE)**, + * so the bpf program should not perform byte conversion. + * According to 802.1Q standard, *VLAN TCI (Tag control information)* + * is a bit field that contains: + * *VLAN identifier (VID)* that can be read with ``vlan_tci & 0xfff``, + * *Drop eligible indicator (DEI)* - 1 bit, + * *Priority code point (PCP)* - 3 bits. + * For detailed meaning of DEI and PCP, please refer to other sources. + * + * Return: + * * Returns 0 on success or ``-errno`` on error. + * * ``-EOPNOTSUPP`` : device driver doesn't implement kfunc + * * ``-ENODATA`` : VLAN tag was not stripped or is not available + */ +__bpf_kfunc int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx, + __be16 *vlan_proto, u16 *vlan_tci) +{ + return -EOPNOTSUPP; +} + __diag_pop(); BTF_SET8_START(xdp_metadata_kfunc_ids) diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h index 2943a151d4f1..661f603e3e43 100644 --- a/tools/include/uapi/linux/netdev.h +++ b/tools/include/uapi/linux/netdev.h @@ -44,13 +44,16 @@ enum netdev_xdp_act { * timestamp via bpf_xdp_metadata_rx_timestamp(). * @NETDEV_XDP_RX_METADATA_HASH: Device is capable of exposing receive packet * hash via bpf_xdp_metadata_rx_hash(). + * @NETDEV_XDP_RX_METADATA_VLAN_TAG: Device is capable of exposing stripped + * receive VLAN tag (proto and TCI) via bpf_xdp_metadata_rx_vlan_tag(). */ enum netdev_xdp_rx_metadata { NETDEV_XDP_RX_METADATA_TIMESTAMP = 1, NETDEV_XDP_RX_METADATA_HASH = 2, + NETDEV_XDP_RX_METADATA_VLAN_TAG = 4, /* private: */ - NETDEV_XDP_RX_METADATA_MASK = 3, + NETDEV_XDP_RX_METADATA_MASK = 7, }; enum { From patchwork Thu Oct 12 17:05:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419501 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 3D0B837164; 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a="416027731" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027731" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774066" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774066" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:14 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 8B35733E8C; Thu, 12 Oct 2023 18:12:11 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 09/18] ice: Implement VLAN tag hint Date: Thu, 12 Oct 2023 19:05:15 +0200 Message-ID: <20231012170524.21085-10-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Implement .xmo_rx_vlan_tag callback to allow XDP code to read packet's VLAN tag. At the same time, use vlan_tci instead of vlan_tag in touched code, because VLAN tag often refers to VLAN proto and VLAN TCI combined, while in the code we clearly store only VLAN TCI. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_main.c | 20 ++++++++++++++ drivers/net/ethernet/intel/ice/ice_txrx.c | 6 ++--- drivers/net/ethernet/intel/ice/ice_txrx.h | 1 + drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 26 +++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 4 +-- drivers/net/ethernet/intel/ice/ice_xsk.c | 6 ++--- 6 files changed, 55 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 2153e27642eb..47e8920e1727 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -6014,6 +6014,23 @@ ice_fix_features(struct net_device *netdev, netdev_features_t features) return features; } +/** + * ice_set_rx_rings_vlan_proto - update rings with new stripped VLAN proto + * @vsi: PF's VSI + * @vlan_ethertype: VLAN ethertype (802.1Q or 802.1ad) in network byte order + * + * Store current stripped VLAN proto in ring packet context, + * so it can be accessed more efficiently by packet processing code. + */ +static void +ice_set_rx_rings_vlan_proto(struct ice_vsi *vsi, __be16 vlan_ethertype) +{ + u16 i; + + ice_for_each_alloc_rxq(vsi, i) + vsi->rx_rings[i]->pkt_ctx.vlan_proto = vlan_ethertype; +} + /** * ice_set_vlan_offload_features - set VLAN offload features for the PF VSI * @vsi: PF's VSI @@ -6056,6 +6073,9 @@ ice_set_vlan_offload_features(struct ice_vsi *vsi, netdev_features_t features) if (strip_err || insert_err) return -EIO; + ice_set_rx_rings_vlan_proto(vsi, enable_stripping ? + htons(vlan_ethertype) : 0); + return 0; } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 4e6546d9cf85..4fd7614f243d 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -1183,7 +1183,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) struct sk_buff *skb; unsigned int size; u16 stat_err_bits; - u16 vlan_tag = 0; + u16 vlan_tci; /* get the Rx desc from Rx ring based on 'next_to_clean' */ rx_desc = ICE_RX_DESC(rx_ring, ntc); @@ -1278,7 +1278,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) continue; } - vlan_tag = ice_get_vlan_tag_from_rx_desc(rx_desc); + vlan_tci = ice_get_vlan_tci(rx_desc); /* pad the skb if needed, to make a valid ethernet frame */ if (eth_skb_pad(skb)) @@ -1292,7 +1292,7 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget) ice_trace(clean_rx_irq_indicate, rx_ring, rx_desc, skb); /* send completed skb up the stack */ - ice_receive_skb(rx_ring, skb, vlan_tag); + ice_receive_skb(rx_ring, skb, vlan_tci); /* update budget accounting */ total_rx_pkts++; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index 4237702a58a9..41e0b14e6643 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -260,6 +260,7 @@ enum ice_rx_dtype { struct ice_pkt_ctx { const union ice_32b_rx_flex_desc *eop_desc; u64 cached_phctime; + __be16 vlan_proto; }; struct ice_xdp_buff { diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 079b0c18047b..b72d0a943e6f 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -601,7 +601,33 @@ static int ice_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, return 0; } +/** + * ice_xdp_rx_vlan_tag - VLAN tag XDP hint handler + * @ctx: XDP buff pointer + * @vlan_proto: destination address for VLAN protocol + * @vlan_tci: destination address for VLAN TCI + * + * Copy VLAN tag (if was stripped) and corresponding protocol + * to the destination address. + */ +static int ice_xdp_rx_vlan_tag(const struct xdp_md *ctx, __be16 *vlan_proto, + u16 *vlan_tci) +{ + const struct ice_xdp_buff *xdp_ext = (void *)ctx; + + *vlan_proto = xdp_ext->pkt_ctx.vlan_proto; + if (!*vlan_proto) + return -ENODATA; + + *vlan_tci = ice_get_vlan_tci(xdp_ext->pkt_ctx.eop_desc); + if (!*vlan_tci) + return -ENODATA; + + return 0; +} + const struct xdp_metadata_ops ice_xdp_md_ops = { .xmo_rx_timestamp = ice_xdp_rx_hw_ts, .xmo_rx_hash = ice_xdp_rx_hash, + .xmo_rx_vlan_tag = ice_xdp_rx_vlan_tag, }; diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h index 145883eec129..b7205826fea8 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h @@ -84,7 +84,7 @@ ice_build_ctob(u64 td_cmd, u64 td_offset, unsigned int size, u64 td_tag) } /** - * ice_get_vlan_tag_from_rx_desc - get VLAN from Rx flex descriptor + * ice_get_vlan_tci - get VLAN TCI from Rx flex descriptor * @rx_desc: Rx 32b flex descriptor with RXDID=2 * * The OS and current PF implementation only support stripping a single VLAN tag @@ -92,7 +92,7 @@ ice_build_ctob(u64 td_cmd, u64 td_offset, unsigned int size, u64 td_tag) * one is found return the tag, else return 0 to mean no VLAN tag was found. */ static inline u16 -ice_get_vlan_tag_from_rx_desc(union ice_32b_rx_flex_desc *rx_desc) +ice_get_vlan_tci(const union ice_32b_rx_flex_desc *rx_desc) { u16 stat_err_bits; diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 6ca620b2fbdd..39775bb6cec1 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -898,7 +898,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) struct xdp_buff *xdp; struct sk_buff *skb; u16 stat_err_bits; - u16 vlan_tag = 0; + u16 vlan_tci; rx_desc = ICE_RX_DESC(rx_ring, ntc); @@ -977,10 +977,10 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) total_rx_bytes += skb->len; total_rx_packets++; - vlan_tag = ice_get_vlan_tag_from_rx_desc(rx_desc); + vlan_tci = ice_get_vlan_tci(rx_desc); ice_process_skb_fields(rx_ring, rx_desc, skb); - ice_receive_skb(rx_ring, skb, vlan_tag); + ice_receive_skb(rx_ring, skb, vlan_tci); } rx_ring->next_to_clean = ntc; From patchwork Thu Oct 12 17:05:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419499 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 D9C6F347B5; 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a="416027743" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027743" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774080" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774080" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:17 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id B6B3033BFF; Thu, 12 Oct 2023 18:12:14 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 10/18] ice: use VLAN proto from ring packet context in skb path Date: Thu, 12 Oct 2023 19:05:16 +0200 Message-ID: <20231012170524.21085-11-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net VLAN proto, used in ice XDP hints implementation is stored in ring packet context. Utilize this value in skb VLAN processing too instead of checking netdev features. At the same time, use vlan_tci instead of vlan_tag in touched code, because vlan_tag is misleading. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 14 +++++--------- drivers/net/ethernet/intel/ice/ice_txrx_lib.h | 2 +- 2 files changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index b72d0a943e6f..f297395f54ab 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -246,21 +246,17 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, * ice_receive_skb - Send a completed packet up the stack * @rx_ring: Rx ring in play * @skb: packet to send up - * @vlan_tag: VLAN tag for packet + * @vlan_tci: VLAN TCI for packet * * This function sends the completed packet (via. skb) up the stack using * gro receive functions (with/without VLAN tag) */ void -ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag) +ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci) { - netdev_features_t features = rx_ring->netdev->features; - bool non_zero_vlan = !!(vlan_tag & VLAN_VID_MASK); - - if ((features & NETIF_F_HW_VLAN_CTAG_RX) && non_zero_vlan) - __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); - else if ((features & NETIF_F_HW_VLAN_STAG_RX) && non_zero_vlan) - __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021AD), vlan_tag); + if ((vlan_tci & VLAN_VID_MASK) && rx_ring->pkt_ctx.vlan_proto) + __vlan_hwaccel_put_tag(skb, rx_ring->pkt_ctx.vlan_proto, + vlan_tci); napi_gro_receive(&rx_ring->q_vector->napi, skb); } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h index b7205826fea8..8487884bf5c4 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.h @@ -150,7 +150,7 @@ ice_process_skb_fields(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb); void -ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tag); +ice_receive_skb(struct ice_rx_ring *rx_ring, struct sk_buff *skb, u16 vlan_tci); static inline void ice_xdp_meta_set_desc(struct xdp_buff *xdp, From patchwork Thu Oct 12 17:05:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419502 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 107B937147; Thu, 12 Oct 2023 17:12:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="fWPlwf/c" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4551CA; Thu, 12 Oct 2023 10:12:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697130778; 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12 Oct 2023 10:12:20 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id A9AAE33E93; Thu, 12 Oct 2023 18:12:17 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 11/18] ice: put XDP meta sources assignment under a static key condition Date: Thu, 12 Oct 2023 19:05:17 +0200 Message-ID: <20231012170524.21085-12-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Usage of XDP hints requires putting additional information after the xdp_buff. In basic case, only the descriptor has to be copied on a per-packet basis, because xdp_buff permanently resides before per-ring metadata (cached time and VLAN protocol ID). However, in ZC mode, xdp_buffs come from a pool, so memory after such buffer does not contain any reliable information, so everything has to be copied, damaging the performance. Introduce a static key to enable meta sources assignment only when attached XDP program is device-bound. This patch eliminates a 6% performance drop in ZC mode, which was a result of addition of XDP hints to the driver. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice.h | 1 + drivers/net/ethernet/intel/ice/ice_main.c | 14 ++++++++++++++ drivers/net/ethernet/intel/ice/ice_txrx.c | 3 ++- drivers/net/ethernet/intel/ice/ice_xsk.c | 3 +++ 4 files changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 3d0f15f8b2b8..76d22be878a4 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -210,6 +210,7 @@ enum ice_feature { }; DECLARE_STATIC_KEY_FALSE(ice_xdp_locking_key); +DECLARE_STATIC_KEY_FALSE(ice_xdp_meta_key); struct ice_channel { struct list_head list; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 47e8920e1727..ee0df86d34b7 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -48,6 +48,9 @@ MODULE_PARM_DESC(debug, "netif level (0=none,...,16=all)"); DEFINE_STATIC_KEY_FALSE(ice_xdp_locking_key); EXPORT_SYMBOL(ice_xdp_locking_key); +DEFINE_STATIC_KEY_FALSE(ice_xdp_meta_key); +EXPORT_SYMBOL(ice_xdp_meta_key); + /** * ice_hw_to_dev - Get device pointer from the hardware structure * @hw: pointer to the device HW structure @@ -2634,6 +2637,11 @@ static int ice_xdp_alloc_setup_rings(struct ice_vsi *vsi) return -ENOMEM; } +static bool ice_xdp_prog_has_meta(struct bpf_prog *prog) +{ + return prog && prog->aux->dev_bound; +} + /** * ice_vsi_assign_bpf_prog - set or clear bpf prog pointer on VSI * @vsi: VSI to set the bpf prog on @@ -2644,10 +2652,16 @@ static void ice_vsi_assign_bpf_prog(struct ice_vsi *vsi, struct bpf_prog *prog) struct bpf_prog *old_prog; int i; + if (ice_xdp_prog_has_meta(prog)) + static_branch_inc(&ice_xdp_meta_key); + old_prog = xchg(&vsi->xdp_prog, prog); ice_for_each_rxq(vsi, i) WRITE_ONCE(vsi->rx_rings[i]->xdp_prog, vsi->xdp_prog); + if (ice_xdp_prog_has_meta(old_prog)) + static_branch_dec(&ice_xdp_meta_key); + if (old_prog) bpf_prog_put(old_prog); } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 4fd7614f243d..19fc182d1f4c 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -572,7 +572,8 @@ ice_run_xdp(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp, if (!xdp_prog) goto exit; - ice_xdp_meta_set_desc(xdp, eop_desc); + if (static_branch_unlikely(&ice_xdp_meta_key)) + ice_xdp_meta_set_desc(xdp, eop_desc); act = bpf_prog_run_xdp(xdp_prog, xdp); switch (act) { diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 39775bb6cec1..f92d7d33fde6 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -773,6 +773,9 @@ static void ice_prepare_pkt_ctx_zc(struct xdp_buff *xdp, union ice_32b_rx_flex_desc *eop_desc, struct ice_rx_ring *rx_ring) { + if (!static_branch_unlikely(&ice_xdp_meta_key)) + return; + XSK_CHECK_PRIV_TYPE(struct ice_xdp_buff); ((struct ice_xdp_buff *)xdp)->pkt_ctx = rx_ring->pkt_ctx; ice_xdp_meta_set_desc(xdp, eop_desc); From patchwork Thu Oct 12 17:05:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419503 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 7EB4938FBF; 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a="416027790" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027790" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774112" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774112" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:22 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 9CF7033E95; Thu, 12 Oct 2023 18:12:20 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 12/18] veth: Implement VLAN tag XDP hint Date: Thu, 12 Oct 2023 19:05:18 +0200 Message-ID: <20231012170524.21085-13-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net In order to test VLAN tag hint in hardware-independent selftests, implement newly added hint in veth driver. Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- drivers/net/veth.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 0deefd1573cf..8a501972670a 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1736,6 +1736,24 @@ static int veth_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, return 0; } +static int veth_xdp_rx_vlan_tag(const struct xdp_md *ctx, __be16 *vlan_proto, + u16 *vlan_tci) +{ + struct veth_xdp_buff *_ctx = (void *)ctx; + struct sk_buff *skb = _ctx->skb; + int err; + + if (!skb) + return -ENODATA; + + err = __vlan_hwaccel_get_tag(skb, vlan_tci); + if (err) + return err; + + *vlan_proto = skb->vlan_proto; + return err; +} + static const struct net_device_ops veth_netdev_ops = { .ndo_init = veth_dev_init, .ndo_open = veth_open, @@ -1760,6 +1778,7 @@ static const struct net_device_ops veth_netdev_ops = { static const struct xdp_metadata_ops veth_xdp_metadata_ops = { .xmo_rx_timestamp = veth_xdp_rx_timestamp, .xmo_rx_hash = veth_xdp_rx_hash, + .xmo_rx_vlan_tag = veth_xdp_rx_vlan_tag, }; #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | \ From patchwork Thu Oct 12 17:05:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419487 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 6332E2B76E; Thu, 12 Oct 2023 17:12:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="d7n5Ca/p" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 308B3B7; Thu, 12 Oct 2023 10:12:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; 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12 Oct 2023 10:12:25 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 2CD4F33E8C; Thu, 12 Oct 2023 18:12:23 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski , Jesper Dangaard Brouer Subject: [PATCH bpf-next v6 13/18] net: make vlan_get_tag() return -ENODATA instead of -EINVAL Date: Thu, 12 Oct 2023 19:05:19 +0200 Message-ID: <20231012170524.21085-14-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net __vlan_hwaccel_get_tag() is used in veth XDP hints implementation, its return value (-EINVAL if skb is not VLAN tagged) is passed to bpf code, but XDP hints specification requires drivers to return -ENODATA, if a hint cannot be provided for a particular packet. Solve this inconsistency by changing error return value of __vlan_hwaccel_get_tag() from -EINVAL to -ENODATA, do the same thing to __vlan_get_tag(), because this function is supposed to follow the same convention. This, in turn, makes -ENODATA the only non-zero value vlan_get_tag() can return. We can do this with no side effects, because none of the users of the 3 above-mentioned functions rely on the exact value. Suggested-by: Jesper Dangaard Brouer Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- include/linux/if_vlan.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 3028af87716e..c1645c86eed9 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -540,7 +540,7 @@ static inline int __vlan_get_tag(const struct sk_buff *skb, u16 *vlan_tci) struct vlan_ethhdr *veth = skb_vlan_eth_hdr(skb); if (!eth_type_vlan(veth->h_vlan_proto)) - return -EINVAL; + return -ENODATA; *vlan_tci = ntohs(veth->h_vlan_TCI); return 0; @@ -561,7 +561,7 @@ static inline int __vlan_hwaccel_get_tag(const struct sk_buff *skb, return 0; } else { *vlan_tci = 0; - return -EINVAL; + return -ENODATA; } } From patchwork Thu Oct 12 17:05:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419504 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 035FA3A273; Thu, 12 Oct 2023 17:13:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="T0A2scxq" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFBFBD6; Thu, 12 Oct 2023 10:12:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697130779; x=1728666779; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=r0/4sXt4J7/Uu9KHLpHylSfMKbutKsdvdien9Ls6cEA=; b=T0A2scxqxzGviwSBmft4gVytL31oJ6zGt+fE4wzid+/eyCf8Kje/owvg TIRekviHoqyu0uZKhh3EcZysUYlDb962h9+eK7yWLDXDi8IsHRSHCtA/H XizoSYcj/JISArgf67GjboG2WzUxom9jrA4RzL80hLrb3ih7ZwjTNXMar AYYbkjQLPaYlJUuilfninyLj/MW8FHWc1tLwe6+RQI8p1XnBOcYTk+tLb pePfbyCUo0QYRZmPPlBQn3wtcSRLmGsTwWsw0oNqwV3gOBkcugcUjj06C qmLAO8UZ2Nudwuha1gO9acrmX6+jdGWfphItYOazI4WCqXsfow7OZ/Phf g==; X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="416027820" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027820" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774132" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774132" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:28 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 2825333EA5; Thu, 12 Oct 2023 18:12:26 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 14/18] mlx5: implement VLAN tag XDP hint Date: Thu, 12 Oct 2023 19:05:20 +0200 Message-ID: <20231012170524.21085-15-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Implement the newly added .xmo_rx_vlan_tag() hint function. Signed-off-by: Larysa Zaremba Reviewed-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 15 +++++++++++++++ include/linux/mlx5/device.h | 2 +- 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c index 12f56d0db0af..d7cd14687ce8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c @@ -256,9 +256,24 @@ static int mlx5e_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, return 0; } +static int mlx5e_xdp_rx_vlan_tag(const struct xdp_md *ctx, __be16 *vlan_proto, + u16 *vlan_tci) +{ + const struct mlx5e_xdp_buff *_ctx = (void *)ctx; + const struct mlx5_cqe64 *cqe = _ctx->cqe; + + if (!cqe_has_vlan(cqe)) + return -ENODATA; + + *vlan_proto = htons(ETH_P_8021Q); + *vlan_tci = be16_to_cpu(cqe->vlan_info); + return 0; +} + const struct xdp_metadata_ops mlx5e_xdp_metadata_ops = { .xmo_rx_timestamp = mlx5e_xdp_rx_timestamp, .xmo_rx_hash = mlx5e_xdp_rx_hash, + .xmo_rx_vlan_tag = mlx5e_xdp_rx_vlan_tag, }; /* returns true if packet was consumed by xdp */ diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 8fbe22de16ef..0805f8231452 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -916,7 +916,7 @@ static inline u8 get_cqe_tls_offload(struct mlx5_cqe64 *cqe) return (cqe->tls_outer_l3_tunneled >> 3) & 0x3; } -static inline bool cqe_has_vlan(struct mlx5_cqe64 *cqe) +static inline bool cqe_has_vlan(const struct mlx5_cqe64 *cqe) { return cqe->l4_l3_hdr_type & 0x1; } From patchwork Thu Oct 12 17:05:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419505 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 D1A5E3A27A; 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a="416027849" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="416027849" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="783774138" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="783774138" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga008.jf.intel.com with ESMTP; 12 Oct 2023 10:12:31 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 9710633E93; Thu, 12 Oct 2023 18:12:28 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 15/18] selftests/bpf: Allow VLAN packets in xdp_hw_metadata Date: Thu, 12 Oct 2023 19:05:21 +0200 Message-ID: <20231012170524.21085-16-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Make VLAN c-tag and s-tag XDP hint testing more convenient by not skipping VLAN-ed packets. Allow both 802.1ad and 802.1Q headers. Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- tools/testing/selftests/bpf/progs/xdp_hw_metadata.c | 10 +++++++++- tools/testing/selftests/bpf/xdp_metadata.h | 8 ++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c index b2dfd7066c6e..63d7de6c6bbb 100644 --- a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c @@ -26,15 +26,23 @@ int rx(struct xdp_md *ctx) { void *data, *data_meta, *data_end; struct ipv6hdr *ip6h = NULL; - struct ethhdr *eth = NULL; struct udphdr *udp = NULL; struct iphdr *iph = NULL; struct xdp_meta *meta; + struct ethhdr *eth; int err; data = (void *)(long)ctx->data; data_end = (void *)(long)ctx->data_end; eth = data; + + if (eth + 1 < data_end && (eth->h_proto == bpf_htons(ETH_P_8021AD) || + eth->h_proto == bpf_htons(ETH_P_8021Q))) + eth = (void *)eth + sizeof(struct vlan_hdr); + + if (eth + 1 < data_end && eth->h_proto == bpf_htons(ETH_P_8021Q)) + eth = (void *)eth + sizeof(struct vlan_hdr); + if (eth + 1 < data_end) { if (eth->h_proto == bpf_htons(ETH_P_IP)) { iph = (void *)(eth + 1); diff --git a/tools/testing/selftests/bpf/xdp_metadata.h b/tools/testing/selftests/bpf/xdp_metadata.h index 938a729bd307..6664893c2c77 100644 --- a/tools/testing/selftests/bpf/xdp_metadata.h +++ b/tools/testing/selftests/bpf/xdp_metadata.h @@ -9,6 +9,14 @@ #define ETH_P_IPV6 0x86DD #endif +#ifndef ETH_P_8021Q +#define ETH_P_8021Q 0x8100 +#endif + +#ifndef ETH_P_8021AD +#define ETH_P_8021AD 0x88A8 +#endif + struct xdp_meta { __u64 rx_timestamp; __u64 xdp_timestamp; From patchwork Thu Oct 12 17:05:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419490 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 2E02930D17; 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a="451471849" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="451471849" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2023 10:12:40 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="747960128" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="747960128" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga007.jf.intel.com with ESMTP; 12 Oct 2023 10:12:33 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 62CFD33E95; Thu, 12 Oct 2023 18:12:31 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 16/18] selftests/bpf: Add flags and VLAN hint to xdp_hw_metadata Date: Thu, 12 Oct 2023 19:05:22 +0200 Message-ID: <20231012170524.21085-17-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Add VLAN hint to the xdp_hw_metadata program. Also, to make metadata layout more straightforward, add flags field to pass information about validity of every separate hint separately. Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- .../selftests/bpf/progs/xdp_hw_metadata.c | 28 +++++++++++--- tools/testing/selftests/bpf/xdp_hw_metadata.c | 38 ++++++++++++++++--- tools/testing/selftests/bpf/xdp_metadata.h | 26 ++++++++++++- 3 files changed, 79 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c index 63d7de6c6bbb..7b7e93486768 100644 --- a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c @@ -20,6 +20,9 @@ extern int bpf_xdp_metadata_rx_timestamp(const struct xdp_md *ctx, __u64 *timestamp) __ksym; extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, enum xdp_rss_hash_type *rss_type) __ksym; +extern int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx, + __be16 *vlan_proto, + __u16 *vlan_tci) __ksym; SEC("xdp") int rx(struct xdp_md *ctx) @@ -84,15 +87,28 @@ int rx(struct xdp_md *ctx) return XDP_PASS; } + meta->hint_valid = 0; + + meta->xdp_timestamp = bpf_ktime_get_tai_ns(); err = bpf_xdp_metadata_rx_timestamp(ctx, &meta->rx_timestamp); - if (!err) - meta->xdp_timestamp = bpf_ktime_get_tai_ns(); + if (err) + meta->rx_timestamp_err = err; + else + meta->hint_valid |= XDP_META_FIELD_TS; + + err = bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, + &meta->rx_hash_type); + if (err) + meta->rx_hash_err = err; else - meta->rx_timestamp = 0; /* Used by AF_XDP as not avail signal */ + meta->hint_valid |= XDP_META_FIELD_RSS; - err = bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type); - if (err < 0) - meta->rx_hash_err = err; /* Used by AF_XDP as no hash signal */ + err = bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_proto, + &meta->rx_vlan_tci); + if (err) + meta->rx_vlan_tag_err = err; + else + meta->hint_valid |= XDP_META_FIELD_VLAN_TAG; __sync_add_and_fetch(&pkts_redir, 1); return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS); diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index 17c980138796..dd9231390790 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -19,6 +19,9 @@ #include "xsk.h" #include +#include +#include +#include #include #include #include @@ -150,21 +153,34 @@ static __u64 gettime(clockid_t clock_id) return (__u64) t.tv_sec * NANOSEC_PER_SEC + t.tv_nsec; } +#define VLAN_PRIO_MASK GENMASK(15, 13) /* Priority Code Point */ +#define VLAN_DEI_MASK GENMASK(12, 12) /* Drop Eligible Indicator */ +#define VLAN_VID_MASK GENMASK(11, 0) /* VLAN Identifier */ +static void print_vlan_tci(__u16 tag) +{ + __u16 vlan_id = FIELD_GET(VLAN_VID_MASK, tag); + __u8 pcp = FIELD_GET(VLAN_PRIO_MASK, tag); + bool dei = FIELD_GET(VLAN_DEI_MASK, tag); + + printf("PCP=%u, DEI=%d, VID=0x%X\n", pcp, dei, vlan_id); +} + static void verify_xdp_metadata(void *data, clockid_t clock_id) { struct xdp_meta *meta; meta = data - sizeof(*meta); - if (meta->rx_hash_err < 0) - printf("No rx_hash err=%d\n", meta->rx_hash_err); - else + if (meta->hint_valid & XDP_META_FIELD_RSS) printf("rx_hash: 0x%X with RSS type:0x%X\n", meta->rx_hash, meta->rx_hash_type); + else + printf("No rx_hash, err=%d\n", meta->rx_hash_err); + + if (meta->hint_valid & XDP_META_FIELD_TS) { + printf("rx_timestamp: %llu (sec:%0.4f)\n", meta->rx_timestamp, + (double)meta->rx_timestamp / NANOSEC_PER_SEC); - printf("rx_timestamp: %llu (sec:%0.4f)\n", meta->rx_timestamp, - (double)meta->rx_timestamp / NANOSEC_PER_SEC); - if (meta->rx_timestamp) { __u64 usr_clock = gettime(clock_id); __u64 xdp_clock = meta->xdp_timestamp; __s64 delta_X = xdp_clock - meta->rx_timestamp; @@ -179,8 +195,18 @@ static void verify_xdp_metadata(void *data, clockid_t clock_id) usr_clock, (double)usr_clock / NANOSEC_PER_SEC, (double)delta_X2U / NANOSEC_PER_SEC, (double)delta_X2U / 1000); + } else { + printf("No rx_timestamp, err=%d\n", meta->rx_timestamp_err); } + if (meta->hint_valid & XDP_META_FIELD_VLAN_TAG) { + printf("rx_vlan_proto: 0x%X\n", ntohs(meta->rx_vlan_proto)); + printf("rx_vlan_tci: "); + print_vlan_tci(meta->rx_vlan_tci); + } else { + printf("No rx_vlan_tci or rx_vlan_proto, err=%d\n", + meta->rx_vlan_tag_err); + } } static void verify_skb_metadata(int fd) diff --git a/tools/testing/selftests/bpf/xdp_metadata.h b/tools/testing/selftests/bpf/xdp_metadata.h index 6664893c2c77..87318ad1117a 100644 --- a/tools/testing/selftests/bpf/xdp_metadata.h +++ b/tools/testing/selftests/bpf/xdp_metadata.h @@ -17,12 +17,36 @@ #define ETH_P_8021AD 0x88A8 #endif +#ifndef BIT +#define BIT(nr) (1 << (nr)) +#endif + +/* Non-existent checksum status */ +#define XDP_CHECKSUM_MAGIC BIT(2) + +enum xdp_meta_field { + XDP_META_FIELD_TS = BIT(0), + XDP_META_FIELD_RSS = BIT(1), + XDP_META_FIELD_VLAN_TAG = BIT(2), +}; + struct xdp_meta { - __u64 rx_timestamp; + union { + __u64 rx_timestamp; + __s32 rx_timestamp_err; + }; __u64 xdp_timestamp; __u32 rx_hash; union { __u32 rx_hash_type; __s32 rx_hash_err; }; + union { + struct { + __be16 rx_vlan_proto; + __u16 rx_vlan_tci; + }; + __s32 rx_vlan_tag_err; + }; + enum xdp_meta_field hint_valid; }; From patchwork Thu Oct 12 17:05:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419491 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 44CC93588B; Thu, 12 Oct 2023 17:12:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="f9CiRKZT" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9974ACA; 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a="747960141" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="747960141" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga007.jf.intel.com with ESMTP; 12 Oct 2023 10:12:36 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id E642133E8C; Thu, 12 Oct 2023 18:12:33 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 17/18] selftests/bpf: Use AF_INET for TX in xdp_metadata Date: Thu, 12 Oct 2023 19:05:23 +0200 Message-ID: <20231012170524.21085-18-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net The easiest way to simulate stripped VLAN tag in veth is to send a packet from VLAN interface, attached to veth. Unfortunately, this approach is incompatible with AF_XDP on TX side, because VLAN interfaces do not have such feature. Replace AF_XDP packet generation with sending the same datagram via AF_INET socket. This does not change the packet contents or hints values with one notable exception: rx_hash_type, which previously was expected to be 0, now is expected be at least XDP_RSS_TYPE_L4. Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- .../selftests/bpf/prog_tests/xdp_metadata.c | 167 +++++++----------- 1 file changed, 59 insertions(+), 108 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 4439ba9392f8..4fcdda02c75e 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -20,7 +20,7 @@ #define UDP_PAYLOAD_BYTES 4 -#define AF_XDP_SOURCE_PORT 1234 +#define UDP_SOURCE_PORT 1234 #define AF_XDP_CONSUMER_PORT 8080 #define UMEM_NUM 16 @@ -33,6 +33,12 @@ #define RX_ADDR "10.0.0.2" #define PREFIX_LEN "8" #define FAMILY AF_INET +#define TX_NETNS_NAME "xdp_metadata_tx" +#define RX_NETNS_NAME "xdp_metadata_rx" +#define TX_MAC "00:00:00:00:00:01" +#define RX_MAC "00:00:00:00:00:02" + +#define XDP_RSS_TYPE_L4 BIT(3) struct xsk { void *umem_area; @@ -119,90 +125,28 @@ static void close_xsk(struct xsk *xsk) munmap(xsk->umem_area, UMEM_SIZE); } -static void ip_csum(struct iphdr *iph) +static int generate_packet_udp(void) { - __u32 sum = 0; - __u16 *p; - int i; - - iph->check = 0; - p = (void *)iph; - for (i = 0; i < sizeof(*iph) / sizeof(*p); i++) - sum += p[i]; - - while (sum >> 16) - sum = (sum & 0xffff) + (sum >> 16); - - iph->check = ~sum; -} - -static int generate_packet(struct xsk *xsk, __u16 dst_port) -{ - struct xdp_desc *tx_desc; - struct udphdr *udph; - struct ethhdr *eth; - struct iphdr *iph; - void *data; - __u32 idx; - int ret; - - ret = xsk_ring_prod__reserve(&xsk->tx, 1, &idx); - if (!ASSERT_EQ(ret, 1, "xsk_ring_prod__reserve")) - return -1; - - tx_desc = xsk_ring_prod__tx_desc(&xsk->tx, idx); - tx_desc->addr = idx % (UMEM_NUM / 2) * UMEM_FRAME_SIZE; - printf("%p: tx_desc[%u]->addr=%llx\n", xsk, idx, tx_desc->addr); - data = xsk_umem__get_data(xsk->umem_area, tx_desc->addr); - - eth = data; - iph = (void *)(eth + 1); - udph = (void *)(iph + 1); - - memcpy(eth->h_dest, "\x00\x00\x00\x00\x00\x02", ETH_ALEN); - memcpy(eth->h_source, "\x00\x00\x00\x00\x00\x01", ETH_ALEN); - eth->h_proto = htons(ETH_P_IP); - - iph->version = 0x4; - iph->ihl = 0x5; - iph->tos = 0x9; - iph->tot_len = htons(sizeof(*iph) + sizeof(*udph) + UDP_PAYLOAD_BYTES); - iph->id = 0; - iph->frag_off = 0; - iph->ttl = 0; - iph->protocol = IPPROTO_UDP; - ASSERT_EQ(inet_pton(FAMILY, TX_ADDR, &iph->saddr), 1, "inet_pton(TX_ADDR)"); - ASSERT_EQ(inet_pton(FAMILY, RX_ADDR, &iph->daddr), 1, "inet_pton(RX_ADDR)"); - ip_csum(iph); - - udph->source = htons(AF_XDP_SOURCE_PORT); - udph->dest = htons(dst_port); - udph->len = htons(sizeof(*udph) + UDP_PAYLOAD_BYTES); - udph->check = 0; - - memset(udph + 1, 0xAA, UDP_PAYLOAD_BYTES); - - tx_desc->len = sizeof(*eth) + sizeof(*iph) + sizeof(*udph) + UDP_PAYLOAD_BYTES; - xsk_ring_prod__submit(&xsk->tx, 1); - - ret = sendto(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, 0); - if (!ASSERT_GE(ret, 0, "sendto")) - return ret; - - return 0; -} - -static void complete_tx(struct xsk *xsk) -{ - __u32 idx; - __u64 addr; - - if (ASSERT_EQ(xsk_ring_cons__peek(&xsk->comp, 1, &idx), 1, "xsk_ring_cons__peek")) { - addr = *xsk_ring_cons__comp_addr(&xsk->comp, idx); - - printf("%p: complete tx idx=%u addr=%llx\n", xsk, idx, addr); - xsk_ring_cons__release(&xsk->comp, 1); - } + char udp_payload[UDP_PAYLOAD_BYTES]; + struct sockaddr_in rx_addr; + int sock_fd, err = 0; + + /* Build a packet */ + memset(udp_payload, 0xAA, UDP_PAYLOAD_BYTES); + rx_addr.sin_addr.s_addr = inet_addr(RX_ADDR); + rx_addr.sin_family = AF_INET; + rx_addr.sin_port = htons(UDP_SOURCE_PORT); + + sock_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (!ASSERT_GE(sock_fd, 0, "socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)")) + return sock_fd; + + err = sendto(sock_fd, udp_payload, UDP_PAYLOAD_BYTES, MSG_DONTWAIT, + (void *)&rx_addr, sizeof(rx_addr)); + ASSERT_GE(err, 0, "sendto"); + + close(sock_fd); + return err; } static void refill_rx(struct xsk *xsk, __u64 addr) @@ -268,7 +212,8 @@ static int verify_xsk_metadata(struct xsk *xsk) if (!ASSERT_NEQ(meta->rx_hash, 0, "rx_hash")) return -1; - ASSERT_EQ(meta->rx_hash_type, 0, "rx_hash_type"); + if (!ASSERT_NEQ(meta->rx_hash_type & XDP_RSS_TYPE_L4, 0, "rx_hash_type")) + return -1; xsk_ring_cons__release(&xsk->rx, 1); refill_rx(xsk, comp_addr); @@ -284,36 +229,38 @@ void test_xdp_metadata(void) struct nstoken *tok = NULL; __u32 queue_id = QUEUE_ID; struct bpf_map *prog_arr; - struct xsk tx_xsk = {}; struct xsk rx_xsk = {}; __u32 val, key = 0; int retries = 10; int rx_ifindex; - int tx_ifindex; int sock_fd; int ret; - /* Setup new networking namespace, with a veth pair. */ + /* Setup new networking namespaces, with a veth pair. */ - SYS(out, "ip netns add xdp_metadata"); - tok = open_netns("xdp_metadata"); + SYS(out, "ip netns add " TX_NETNS_NAME); + SYS(out, "ip netns add " RX_NETNS_NAME); + + tok = open_netns(TX_NETNS_NAME); SYS(out, "ip link add numtxqueues 1 numrxqueues 1 " TX_NAME " type veth peer " RX_NAME " numtxqueues 1 numrxqueues 1"); - SYS(out, "ip link set dev " TX_NAME " address 00:00:00:00:00:01"); - SYS(out, "ip link set dev " RX_NAME " address 00:00:00:00:00:02"); + SYS(out, "ip link set " RX_NAME " netns " RX_NETNS_NAME); + + SYS(out, "ip link set dev " TX_NAME " address " TX_MAC); SYS(out, "ip link set dev " TX_NAME " up"); - SYS(out, "ip link set dev " RX_NAME " up"); SYS(out, "ip addr add " TX_ADDR "/" PREFIX_LEN " dev " TX_NAME); - SYS(out, "ip addr add " RX_ADDR "/" PREFIX_LEN " dev " RX_NAME); - rx_ifindex = if_nametoindex(RX_NAME); - tx_ifindex = if_nametoindex(TX_NAME); + /* Avoid ARP calls */ + SYS(out, "ip -4 neigh add " RX_ADDR " lladdr " RX_MAC " dev " TX_NAME); + close_netns(tok); - /* Setup separate AF_XDP for TX and RX interfaces. */ + tok = open_netns(RX_NETNS_NAME); + SYS(out, "ip link set dev " RX_NAME " address " RX_MAC); + SYS(out, "ip link set dev " RX_NAME " up"); + SYS(out, "ip addr add " RX_ADDR "/" PREFIX_LEN " dev " RX_NAME); + rx_ifindex = if_nametoindex(RX_NAME); - ret = open_xsk(tx_ifindex, &tx_xsk); - if (!ASSERT_OK(ret, "open_xsk(TX_NAME)")) - goto out; + /* Setup AF_XDP for RX interface. */ ret = open_xsk(rx_ifindex, &rx_xsk); if (!ASSERT_OK(ret, "open_xsk(RX_NAME)")) @@ -353,19 +300,20 @@ void test_xdp_metadata(void) ret = bpf_map_update_elem(bpf_map__fd(bpf_obj->maps.xsk), &queue_id, &sock_fd, 0); if (!ASSERT_GE(ret, 0, "bpf_map_update_elem")) goto out; + close_netns(tok); /* Send packet destined to RX AF_XDP socket. */ - if (!ASSERT_GE(generate_packet(&tx_xsk, AF_XDP_CONSUMER_PORT), 0, - "generate AF_XDP_CONSUMER_PORT")) + tok = open_netns(TX_NETNS_NAME); + if (!ASSERT_GE(generate_packet_udp(), 0, "generate UDP packet")) goto out; + close_netns(tok); /* Verify AF_XDP RX packet has proper metadata. */ + tok = open_netns(RX_NETNS_NAME); if (!ASSERT_GE(verify_xsk_metadata(&rx_xsk), 0, "verify_xsk_metadata")) goto out; - complete_tx(&tx_xsk); - /* Make sure freplace correctly picks up original bound device * and doesn't crash. */ @@ -382,12 +330,15 @@ void test_xdp_metadata(void) if (!ASSERT_OK(xdp_metadata2__attach(bpf_obj2), "attach freplace")) goto out; + close_netns(tok); /* Send packet to trigger . */ - if (!ASSERT_GE(generate_packet(&tx_xsk, AF_XDP_CONSUMER_PORT), 0, - "generate freplace packet")) + tok = open_netns(TX_NETNS_NAME); + if (!ASSERT_GE(generate_packet_udp(), 0, "generate freplace packet")) goto out; + close_netns(tok); + tok = open_netns(RX_NETNS_NAME); while (!retries--) { if (bpf_obj2->bss->called) break; @@ -397,10 +348,10 @@ void test_xdp_metadata(void) out: close_xsk(&rx_xsk); - close_xsk(&tx_xsk); xdp_metadata2__destroy(bpf_obj2); xdp_metadata__destroy(bpf_obj); if (tok) close_netns(tok); - SYS_NOFAIL("ip netns del xdp_metadata"); + SYS_NOFAIL("ip netns del " RX_NETNS_NAME); + SYS_NOFAIL("ip netns del " TX_NETNS_NAME); } From patchwork Thu Oct 12 17:05:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13419492 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 A47433398A; Thu, 12 Oct 2023 17:12:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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12 Oct 2023 10:12:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10861"; a="747960160" X-IronPort-AV: E=Sophos;i="6.03,219,1694761200"; d="scan'208";a="747960160" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga007.jf.intel.com with ESMTP; 12 Oct 2023 10:12:40 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id C8DCF33EA3; Thu, 12 Oct 2023 18:12:36 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org 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 , Tariq Toukan , Saeed Mahameed , Maciej Fijalkowski Subject: [PATCH bpf-next v6 18/18] selftests/bpf: Check VLAN tag and proto in xdp_metadata Date: Thu, 12 Oct 2023 19:05:24 +0200 Message-ID: <20231012170524.21085-19-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231012170524.21085-1-larysa.zaremba@intel.com> References: <20231012170524.21085-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Verify, whether VLAN tag and proto are set correctly. To simulate "stripped" VLAN tag on veth, send test packet from VLAN interface. Also, add TO_STR() macro for convenience. Acked-by: Stanislav Fomichev Signed-off-by: Larysa Zaremba --- .../selftests/bpf/prog_tests/xdp_metadata.c | 21 +++++++++++++++++-- .../selftests/bpf/progs/xdp_metadata.c | 5 +++++ tools/testing/selftests/bpf/testing_helpers.h | 3 +++ 3 files changed, 27 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 4fcdda02c75e..21b8e0e95019 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -38,7 +38,14 @@ #define TX_MAC "00:00:00:00:00:01" #define RX_MAC "00:00:00:00:00:02" +#define VLAN_ID 59 +#define VLAN_PROTO "802.1Q" +#define VLAN_PID htons(ETH_P_8021Q) +#define TX_NAME_VLAN TX_NAME "." TO_STR(VLAN_ID) +#define RX_NAME_VLAN RX_NAME "." TO_STR(VLAN_ID) + #define XDP_RSS_TYPE_L4 BIT(3) +#define VLAN_VID_MASK 0xfff struct xsk { void *umem_area; @@ -215,6 +222,12 @@ static int verify_xsk_metadata(struct xsk *xsk) if (!ASSERT_NEQ(meta->rx_hash_type & XDP_RSS_TYPE_L4, 0, "rx_hash_type")) return -1; + if (!ASSERT_EQ(meta->rx_vlan_tci & VLAN_VID_MASK, VLAN_ID, "rx_vlan_tci")) + return -1; + + if (!ASSERT_EQ(meta->rx_vlan_proto, VLAN_PID, "rx_vlan_proto")) + return -1; + xsk_ring_cons__release(&xsk->rx, 1); refill_rx(xsk, comp_addr); @@ -248,10 +261,14 @@ void test_xdp_metadata(void) SYS(out, "ip link set dev " TX_NAME " address " TX_MAC); SYS(out, "ip link set dev " TX_NAME " up"); - SYS(out, "ip addr add " TX_ADDR "/" PREFIX_LEN " dev " TX_NAME); + + SYS(out, "ip link add link " TX_NAME " " TX_NAME_VLAN + " type vlan proto " VLAN_PROTO " id " TO_STR(VLAN_ID)); + SYS(out, "ip link set dev " TX_NAME_VLAN " up"); + SYS(out, "ip addr add " TX_ADDR "/" PREFIX_LEN " dev " TX_NAME_VLAN); /* Avoid ARP calls */ - SYS(out, "ip -4 neigh add " RX_ADDR " lladdr " RX_MAC " dev " TX_NAME); + SYS(out, "ip -4 neigh add " RX_ADDR " lladdr " RX_MAC " dev " TX_NAME_VLAN); close_netns(tok); tok = open_netns(RX_NETNS_NAME); diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata.c b/tools/testing/selftests/bpf/progs/xdp_metadata.c index d151d406a123..2c6c46ef8502 100644 --- a/tools/testing/selftests/bpf/progs/xdp_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c @@ -23,6 +23,9 @@ extern int bpf_xdp_metadata_rx_timestamp(const struct xdp_md *ctx, __u64 *timestamp) __ksym; extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, enum xdp_rss_hash_type *rss_type) __ksym; +extern int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx, + __be16 *vlan_proto, + __u16 *vlan_tci) __ksym; SEC("xdp") int rx(struct xdp_md *ctx) @@ -57,6 +60,8 @@ int rx(struct xdp_md *ctx) meta->rx_timestamp = 1; bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type); + bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_proto, + &meta->rx_vlan_tci); return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS); } diff --git a/tools/testing/selftests/bpf/testing_helpers.h b/tools/testing/selftests/bpf/testing_helpers.h index 5b7a55136741..35284faff4f2 100644 --- a/tools/testing/selftests/bpf/testing_helpers.h +++ b/tools/testing/selftests/bpf/testing_helpers.h @@ -9,6 +9,9 @@ #include #include +#define __TO_STR(x) #x +#define TO_STR(x) __TO_STR(x) + int parse_num_list(const char *s, bool **set, int *set_len); __u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info); int bpf_prog_test_load(const char *file, enum bpf_prog_type type,