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Sat, 2 Jul 2022 07:36:10 +0000 From: Simon Horman To: David Miller , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, oss-drivers@corigine.com, Diana Wang Subject: [PATCH net-next 2/2] nfp: support TX VLAN ctag insert Date: Sat, 2 Jul 2022 09:35:51 +0200 Message-Id: <20220702073551.610012-3-simon.horman@corigine.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220702073551.610012-1-simon.horman@corigine.com> References: <20220702073551.610012-1-simon.horman@corigine.com> X-ClientProxiedBy: AS4P250CA0017.EURP250.PROD.OUTLOOK.COM (2603:10a6:20b:5e3::6) To PH0PR13MB4842.namprd13.prod.outlook.com (2603:10b6:510:78::6) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: bd582de7-c37d-4244-d99f-08da5bfd8874 X-MS-TrafficTypeDiagnostic: DM5PR13MB1068:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR13MB4842.namprd13.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(4636009)(396003)(39830400003)(376002)(366004)(136003)(346002)(38100700002)(478600001)(6506007)(83380400001)(2616005)(186003)(110136005)(1076003)(52116002)(6666004)(6512007)(6486002)(41300700001)(316002)(44832011)(2906002)(8676002)(4326008)(86362001)(107886003)(5660300002)(66476007)(66556008)(8936002)(36756003)(66946007)(309714004);DIR:OUT;SFP:1102; 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The fields of this VLAN metadata are gotten from sk_buff, including vlan_proto and vlan tag. Configuration control bit NFP_NET_CFG_CTRL_TXVLAN_V2 is to signal availability of ctag-insert features of the firmware. NFDK is used to communicate via PCIE to NFP-3800 based NICs while NFD3 is used for other NICs supported by the NFP driver. The metadata format on tx side of NFD3 is different from NFDK. This feature is not currently implemented for NFDK. Signed-off-by: Diana Wang Reviewed-by: Louis Peens Signed-off-by: Simon Horman --- drivers/net/ethernet/netronome/nfp/nfd3/dp.c | 41 +++++++++++++------ .../net/ethernet/netronome/nfp/nfd3/rings.c | 1 + .../ethernet/netronome/nfp/nfp_net_common.c | 13 +++--- .../net/ethernet/netronome/nfp/nfp_net_ctrl.h | 7 ++++ .../net/ethernet/netronome/nfp/nfp_net_repr.c | 2 +- 5 files changed, 45 insertions(+), 19 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c index c207581ed00a..6e5ae72b3161 100644 --- a/drivers/net/ethernet/netronome/nfp/nfd3/dp.c +++ b/drivers/net/ethernet/netronome/nfp/nfd3/dp.c @@ -168,30 +168,35 @@ nfp_nfd3_tx_csum(struct nfp_net_dp *dp, struct nfp_net_r_vector *r_vec, u64_stats_update_end(&r_vec->tx_sync); } -static int nfp_nfd3_prep_tx_meta(struct sk_buff *skb, u64 tls_handle) +static int nfp_nfd3_prep_tx_meta(struct nfp_net_dp *dp, struct sk_buff *skb, u64 tls_handle) { struct metadata_dst *md_dst = skb_metadata_dst(skb); unsigned char *data; + bool vlan_insert; u32 meta_id = 0; int md_bytes; - if (likely(!md_dst && !tls_handle)) - return 0; - if (unlikely(md_dst && md_dst->type != METADATA_HW_PORT_MUX)) { - if (!tls_handle) - return 0; - md_dst = NULL; + if (unlikely(md_dst || tls_handle)) { + if (unlikely(md_dst && md_dst->type != METADATA_HW_PORT_MUX)) + md_dst = NULL; } - md_bytes = 4 + !!md_dst * 4 + !!tls_handle * 8; + vlan_insert = skb_vlan_tag_present(skb) && (dp->ctrl & NFP_NET_CFG_CTRL_TXVLAN_V2); + + if (!(md_dst || tls_handle || vlan_insert)) + return 0; + + md_bytes = sizeof(meta_id) + + !!md_dst * NFP_NET_META_PORTID_SIZE + + !!tls_handle * NFP_NET_META_CONN_HANDLE_SIZE + + vlan_insert * NFP_NET_META_VLAN_SIZE; if (unlikely(skb_cow_head(skb, md_bytes))) return -ENOMEM; - meta_id = 0; data = skb_push(skb, md_bytes) + md_bytes; if (md_dst) { - data -= 4; + data -= NFP_NET_META_PORTID_SIZE; put_unaligned_be32(md_dst->u.port_info.port_id, data); meta_id = NFP_NET_META_PORTID; } @@ -199,13 +204,23 @@ static int nfp_nfd3_prep_tx_meta(struct sk_buff *skb, u64 tls_handle) /* conn handle is opaque, we just use u64 to be able to quickly * compare it to zero */ - data -= 8; + data -= NFP_NET_META_CONN_HANDLE_SIZE; memcpy(data, &tls_handle, sizeof(tls_handle)); meta_id <<= NFP_NET_META_FIELD_SIZE; meta_id |= NFP_NET_META_CONN_HANDLE; } + if (vlan_insert) { + data -= NFP_NET_META_VLAN_SIZE; + /* data type of skb->vlan_proto is __be16 + * so it fills metadata without calling put_unaligned_be16 + */ + memcpy(data, &skb->vlan_proto, sizeof(skb->vlan_proto)); + put_unaligned_be16(skb_vlan_tag_get(skb), data + sizeof(skb->vlan_proto)); + meta_id <<= NFP_NET_META_FIELD_SIZE; + meta_id |= NFP_NET_META_VLAN; + } - data -= 4; + data -= sizeof(meta_id); put_unaligned_be32(meta_id, data); return md_bytes; @@ -259,7 +274,7 @@ netdev_tx_t nfp_nfd3_tx(struct sk_buff *skb, struct net_device *netdev) return NETDEV_TX_OK; } - md_bytes = nfp_nfd3_prep_tx_meta(skb, tls_handle); + md_bytes = nfp_nfd3_prep_tx_meta(dp, skb, tls_handle); if (unlikely(md_bytes < 0)) goto err_flush; diff --git a/drivers/net/ethernet/netronome/nfp/nfd3/rings.c b/drivers/net/ethernet/netronome/nfp/nfd3/rings.c index 0390b754a399..a03190c9313c 100644 --- a/drivers/net/ethernet/netronome/nfp/nfd3/rings.c +++ b/drivers/net/ethernet/netronome/nfp/nfd3/rings.c @@ -248,6 +248,7 @@ nfp_nfd3_print_tx_descs(struct seq_file *file, NFP_NET_CFG_CTRL_RXCSUM | NFP_NET_CFG_CTRL_TXCSUM | \ NFP_NET_CFG_CTRL_RXVLAN | NFP_NET_CFG_CTRL_TXVLAN | \ NFP_NET_CFG_CTRL_RXVLAN_V2 | NFP_NET_CFG_CTRL_RXQINQ | \ + NFP_NET_CFG_CTRL_TXVLAN_V2 | \ NFP_NET_CFG_CTRL_GATHER | NFP_NET_CFG_CTRL_LSO | \ NFP_NET_CFG_CTRL_CTAG_FILTER | NFP_NET_CFG_CTRL_CMSG_DATA | \ NFP_NET_CFG_CTRL_RINGCFG | NFP_NET_CFG_CTRL_RSS | \ diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index a8b877a5e438..6f833aeed75f 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -1703,9 +1703,10 @@ static int nfp_net_set_features(struct net_device *netdev, if (changed & NETIF_F_HW_VLAN_CTAG_TX) { if (features & NETIF_F_HW_VLAN_CTAG_TX) - new_ctrl |= NFP_NET_CFG_CTRL_TXVLAN; + new_ctrl |= nn->cap & NFP_NET_CFG_CTRL_TXVLAN_V2 ?: + NFP_NET_CFG_CTRL_TXVLAN; else - new_ctrl &= ~NFP_NET_CFG_CTRL_TXVLAN; + new_ctrl &= ~NFP_NET_CFG_CTRL_TXVLAN_ANY; } if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) { @@ -2093,7 +2094,7 @@ void nfp_net_info(struct nfp_net *nn) nn->fw_ver.extend, nn->fw_ver.class, nn->fw_ver.major, nn->fw_ver.minor, nn->max_mtu); - nn_info(nn, "CAP: %#x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", + nn_info(nn, "CAP: %#x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", nn->cap, nn->cap & NFP_NET_CFG_CTRL_PROMISC ? "PROMISC " : "", nn->cap & NFP_NET_CFG_CTRL_L2BC ? "L2BCFILT " : "", @@ -2104,6 +2105,7 @@ void nfp_net_info(struct nfp_net *nn) nn->cap & NFP_NET_CFG_CTRL_TXVLAN ? "TXVLAN " : "", nn->cap & NFP_NET_CFG_CTRL_RXQINQ ? "RXQINQ " : "", nn->cap & NFP_NET_CFG_CTRL_RXVLAN_V2 ? "RXVLANv2 " : "", + nn->cap & NFP_NET_CFG_CTRL_TXVLAN_V2 ? "TXVLAN2 " : "", nn->cap & NFP_NET_CFG_CTRL_SCATTER ? "SCATTER " : "", nn->cap & NFP_NET_CFG_CTRL_GATHER ? "GATHER " : "", nn->cap & NFP_NET_CFG_CTRL_LSO ? "TSO1 " : "", @@ -2396,12 +2398,13 @@ static void nfp_net_netdev_init(struct nfp_net *nn) nn->dp.ctrl |= nn->cap & NFP_NET_CFG_CTRL_RXVLAN_V2 ?: NFP_NET_CFG_CTRL_RXVLAN; } - if (nn->cap & NFP_NET_CFG_CTRL_TXVLAN) { + if (nn->cap & NFP_NET_CFG_CTRL_TXVLAN_ANY) { if (nn->cap & NFP_NET_CFG_CTRL_LSO2) { nn_warn(nn, "Device advertises both TSO2 and TXVLAN. Refusing to enable TXVLAN.\n"); } else { netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX; - nn->dp.ctrl |= NFP_NET_CFG_CTRL_TXVLAN; + nn->dp.ctrl |= nn->cap & NFP_NET_CFG_CTRL_TXVLAN_V2 ?: + NFP_NET_CFG_CTRL_TXVLAN; } } if (nn->cap & NFP_NET_CFG_CTRL_CTAG_FILTER) { diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h index e03234fc9475..ac05ec34d69e 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h @@ -48,6 +48,10 @@ #define NFP_META_PORT_ID_CTRL ~0U +/* Prepend field sizes */ +#define NFP_NET_META_VLAN_SIZE 4 +#define NFP_NET_META_PORTID_SIZE 4 +#define NFP_NET_META_CONN_HANDLE_SIZE 8 /* Hash type pre-pended when a RSS hash was computed */ #define NFP_NET_RSS_NONE 0 #define NFP_NET_RSS_IPV4 1 @@ -103,6 +107,7 @@ #define NFP_NET_CFG_CTRL_MSIXAUTO (0x1 << 20) /* MSI-X auto-masking */ #define NFP_NET_CFG_CTRL_TXRWB (0x1 << 21) /* Write-back of TX ring*/ #define NFP_NET_CFG_CTRL_VEPA (0x1 << 22) /* Enable VEPA mode */ +#define NFP_NET_CFG_CTRL_TXVLAN_V2 (0x1 << 23) /* Enable VLAN C-tag insert*/ #define NFP_NET_CFG_CTRL_VXLAN (0x1 << 24) /* VXLAN tunnel support */ #define NFP_NET_CFG_CTRL_NVGRE (0x1 << 25) /* NVGRE tunnel support */ #define NFP_NET_CFG_CTRL_BPF (0x1 << 27) /* BPF offload capable */ @@ -121,6 +126,8 @@ NFP_NET_CFG_CTRL_CSUM_COMPLETE) #define NFP_NET_CFG_CTRL_RXVLAN_ANY (NFP_NET_CFG_CTRL_RXVLAN | \ NFP_NET_CFG_CTRL_RXVLAN_V2) +#define NFP_NET_CFG_CTRL_TXVLAN_ANY (NFP_NET_CFG_CTRL_TXVLAN | \ + NFP_NET_CFG_CTRL_TXVLAN_V2) #define NFP_NET_CFG_UPDATE 0x0004 #define NFP_NET_CFG_UPDATE_GEN (0x1 << 0) /* General update */ diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c index 066cce1db85d..8ea4d8b55750 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_repr.c @@ -367,7 +367,7 @@ int nfp_repr_init(struct nfp_app *app, struct net_device *netdev, if (repr_cap & NFP_NET_CFG_CTRL_RXVLAN_ANY) netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; - if (repr_cap & NFP_NET_CFG_CTRL_TXVLAN) { + if (repr_cap & NFP_NET_CFG_CTRL_TXVLAN_ANY) { if (repr_cap & NFP_NET_CFG_CTRL_LSO2) netdev_warn(netdev, "Device advertises both TSO2 and TXVLAN. Refusing to enable TXVLAN.\n"); else