From patchwork Thu Jun 1 15:30:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artemii Morozov X-Patchwork-Id: 127869 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id F255F42C05; Thu, 1 Jun 2023 17:30:45 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D554A42D35; Thu, 1 Jun 2023 17:30:33 +0200 (CEST) Received: from agw.arknetworks.am (agw.arknetworks.am [79.141.165.80]) by mails.dpdk.org (Postfix) with ESMTP id 39B2442D10 for ; Thu, 1 Jun 2023 17:30:32 +0200 (CEST) Received: from localhost.localdomain (unknown [141.136.91.67]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by agw.arknetworks.am (Postfix) with ESMTPSA id B4CF8E126C; Thu, 1 Jun 2023 19:30:30 +0400 (+04) From: Artemii Morozov To: dev@dpdk.org Cc: Ivan Malov , Viacheslav Galaktionov , Andrew Rybchenko , Andy Moreton Subject: [PATCH v4 3/3] net/sfc: support VLAN stripping offload Date: Thu, 1 Jun 2023 19:30:22 +0400 Message-Id: <20230601153022.99634-4-artemii.morozov@arknetworks.am> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230601153022.99634-1-artemii.morozov@arknetworks.am> References: <20230531134122.119508-1-artemii.morozov@arknetworks.am> <20230601153022.99634-1-artemii.morozov@arknetworks.am> MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Extract vlan tci provided by the HW in the prefix and put it to mbuf. VLAN stripping is supported for ef100 datapath only. Signed-off-by: Artemii Morozov Reviewed-by: Viacheslav Galaktionov Reviewed-by: Ivan Malov Reviewed-by: Andy Moreton --- doc/guides/nics/sfc_efx.rst | 4 ++-- drivers/net/sfc/sfc_ef100_rx.c | 21 ++++++++++++++++++++- drivers/net/sfc/sfc_rx.c | 19 +++++++++++++++++++ 3 files changed, 41 insertions(+), 3 deletions(-) diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst index de0656876b..44fa24e1ba 100644 --- a/doc/guides/nics/sfc_efx.rst +++ b/doc/guides/nics/sfc_efx.rst @@ -118,6 +118,8 @@ SFC EFX PMD has support for: - Port representors (see :ref: switch_representation) +- VLAN stripping (if running firmware variant supports it) + Non-supported Features ---------------------- @@ -132,8 +134,6 @@ The features not yet supported include: - VLAN filtering -- VLAN stripping - - LRO diff --git a/drivers/net/sfc/sfc_ef100_rx.c b/drivers/net/sfc/sfc_ef100_rx.c index 37b754fa33..e323156a26 100644 --- a/drivers/net/sfc/sfc_ef100_rx.c +++ b/drivers/net/sfc/sfc_ef100_rx.c @@ -68,6 +68,7 @@ struct sfc_ef100_rxq { #define SFC_EF100_RXQ_INGRESS_MPORT 0x80 #define SFC_EF100_RXQ_USER_FLAG 0x100 #define SFC_EF100_RXQ_NIC_DMA_MAP 0x200 +#define SFC_EF100_RXQ_VLAN_STRIP 0x400 unsigned int ptr_mask; unsigned int evq_phase_bit_shift; unsigned int ready_pkts; @@ -392,6 +393,7 @@ static const efx_rx_prefix_layout_t sfc_ef100_rx_prefix_layout = { SFC_EF100_RX_PREFIX_FIELD(RSS_HASH, B_FALSE), SFC_EF100_RX_PREFIX_FIELD(USER_FLAG, B_FALSE), SFC_EF100_RX_PREFIX_FIELD(USER_MARK, B_FALSE), + SFC_EF100_RX_PREFIX_FIELD(VLAN_STRIP_TCI, B_FALSE), #undef SFC_EF100_RX_PREFIX_FIELD } @@ -472,6 +474,17 @@ sfc_ef100_rx_prefix_to_offloads(const struct sfc_ef100_rxq *rxq, ESF_GZ_RX_PREFIX_INGRESS_MPORT); } + if (rxq->flags & SFC_EF100_RXQ_VLAN_STRIP) { + uint32_t vlan_stripped; + vlan_stripped = EFX_XWORD_FIELD(rx_prefix[0], ESF_GZ_RX_PREFIX_VLAN_STRIPPED); + + if (vlan_stripped != 0) { + ol_flags |= RTE_MBUF_F_RX_VLAN | RTE_MBUF_F_RX_VLAN_STRIPPED; + m->vlan_tci = EFX_XWORD_FIELD(rx_prefix[0], + ESF_GZ_RX_PREFIX_VLAN_STRIP_TCI); + } + } + m->ol_flags = ol_flags; return true; } @@ -892,6 +905,12 @@ sfc_ef100_rx_qstart(struct sfc_dp_rxq *dp_rxq, unsigned int evq_read_ptr, (rxq->flags & SFC_EF100_RXQ_INGRESS_MPORT)) return ENOTSUP; + if ((unsup_rx_prefix_fields & + (1U << EFX_RX_PREFIX_FIELD_VLAN_STRIP_TCI)) == 0) + rxq->flags |= SFC_EF100_RXQ_VLAN_STRIP; + else + rxq->flags &= ~SFC_EF100_RXQ_VLAN_STRIP; + rxq->prefix_size = pinfo->erpl_length; rxq->rearm_data = sfc_ef100_mk_mbuf_rearm_data(rxq->dp.dpq.port_id, rxq->prefix_size); @@ -1004,7 +1023,7 @@ struct sfc_dp_rx sfc_ef100_rx = { SFC_DP_RX_FEAT_FLOW_MARK | SFC_DP_RX_FEAT_INTR | SFC_DP_RX_FEAT_STATS, - .dev_offload_capa = 0, + .dev_offload_capa = RTE_ETH_RX_OFFLOAD_VLAN_STRIP, .queue_offload_capa = RTE_ETH_RX_OFFLOAD_CHECKSUM | RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM | RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM | diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c index edd0f0c038..e9ef1d92ed 100644 --- a/drivers/net/sfc/sfc_rx.c +++ b/drivers/net/sfc/sfc_rx.c @@ -938,6 +938,9 @@ sfc_rx_get_offload_mask(struct sfc_adapter *sa) if (encp->enc_tunnel_encapsulations_supported == 0) no_caps |= RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM; + if (encp->enc_rx_vlan_stripping == 0) + no_caps |= RTE_ETH_RX_OFFLOAD_VLAN_STRIP; + return ~no_caps; } @@ -1186,6 +1189,16 @@ sfc_rx_qinit(struct sfc_adapter *sa, sfc_sw_index_t sw_index, if (offloads & RTE_ETH_RX_OFFLOAD_RSS_HASH) rxq_info->type_flags |= EFX_RXQ_FLAG_RSS_HASH; + + if (sa->eth_dev->data->dev_conf.rxmode.offloads & + RTE_ETH_RX_OFFLOAD_VLAN_STRIP) { + rxq_info->type_flags |= EFX_RXQ_FLAG_VLAN_STRIP; + } else if (rx_conf->offloads & RTE_ETH_RX_OFFLOAD_VLAN_STRIP) { + sfc_err(sa, "VLAN stripping must be configured during device configure"); + rc = EINVAL; + goto fail_bad_conf; + } + if ((sa->negotiated_rx_metadata & RTE_ETH_RX_METADATA_USER_FLAG) != 0) rxq_info->type_flags |= EFX_RXQ_FLAG_USER_FLAG; @@ -1691,6 +1704,12 @@ sfc_rx_check_mode(struct sfc_adapter *sa, struct rte_eth_rxmode *rxmode) rxmode->offloads |= RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM; } + if ((rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_STRIP) && + (~offloads_supported & RTE_ETH_RX_OFFLOAD_VLAN_STRIP)) { + sfc_err(sa, "VLAN stripping offload is requested but not supported"); + rc = ENOTSUP; + } + return rc; }