diff options
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net.h | 36 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 24 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c | 369 |
4 files changed, 430 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h index 939cfce15830..bd0e26524417 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h @@ -621,6 +621,9 @@ struct nfp_net_dp { * @mbox_amsg.lock: Protect message list * @mbox_amsg.list: List of message to process * @mbox_amsg.work: Work to process message asynchronously + * @fs: Flow steering + * @fs.count: Flow count + * @fs.list: List of flows * @app_priv: APP private data for this vNIC */ struct nfp_net { @@ -728,9 +731,39 @@ struct nfp_net { struct work_struct work; } mbox_amsg; + struct { + u16 count; + struct list_head list; + } fs; + void *app_priv; }; +struct nfp_fs_entry { + struct list_head node; + u32 flow_type; + u32 loc; + struct { + union { + struct { + __be32 sip4; + __be32 dip4; + }; + struct { + __be32 sip6[4]; + __be32 dip6[4]; + }; + }; + union { + __be16 l3_proto; + u8 l4_proto; + }; + __be16 sport; + __be16 dport; + } key, msk; + u64 action; +}; + struct nfp_mbox_amsg_entry { struct list_head list; int (*cfg)(struct nfp_net *nn, struct nfp_mbox_amsg_entry *entry); @@ -987,6 +1020,9 @@ struct nfp_net_dp *nfp_net_clone_dp(struct nfp_net *nn); int nfp_net_ring_reconfig(struct nfp_net *nn, struct nfp_net_dp *new, struct netlink_ext_ack *extack); +int nfp_net_fs_add_hw(struct nfp_net *nn, struct nfp_fs_entry *entry); +int nfp_net_fs_del_hw(struct nfp_net *nn, struct nfp_fs_entry *entry); + #ifdef CONFIG_NFP_DEBUG void nfp_net_debugfs_create(void); void nfp_net_debugfs_destroy(void); diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index de0a5d5ded30..12eda2c2ac23 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -1763,6 +1763,27 @@ nfp_net_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid) return nfp_net_mbox_reconfig_and_unlock(nn, cmd); } +int nfp_net_fs_add_hw(struct nfp_net *nn, struct nfp_fs_entry *entry) +{ + return -EOPNOTSUPP; +} + +int nfp_net_fs_del_hw(struct nfp_net *nn, struct nfp_fs_entry *entry) +{ + return -EOPNOTSUPP; +} + +static void nfp_net_fs_clean(struct nfp_net *nn) +{ + struct nfp_fs_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, &nn->fs.list, node) { + nfp_net_fs_del_hw(nn, entry); + list_del(&entry->node); + kfree(entry); + } +} + static void nfp_net_stat64(struct net_device *netdev, struct rtnl_link_stats64 *stats) { @@ -2740,6 +2761,8 @@ int nfp_net_init(struct nfp_net *nn) INIT_LIST_HEAD(&nn->mbox_amsg.list); INIT_WORK(&nn->mbox_amsg.work, nfp_net_mbox_amsg_work); + INIT_LIST_HEAD(&nn->fs.list); + return register_netdev(nn->dp.netdev); err_clean_mbox: @@ -2759,6 +2782,7 @@ void nfp_net_clean(struct nfp_net *nn) unregister_netdev(nn->dp.netdev); nfp_net_ipsec_clean(nn); nfp_ccm_mbox_clean(nn); + nfp_net_fs_clean(nn); flush_work(&nn->mbox_amsg.work); nfp_net_reconfig_wait_posted(nn); } diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h index 3e63f6d6a563..515472924a5d 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h @@ -269,6 +269,7 @@ #define NFP_NET_CFG_CTRL_IPSEC (0x1 << 1) /* IPsec offload */ #define NFP_NET_CFG_CTRL_MCAST_FILTER (0x1 << 2) /* Multicast Filter */ #define NFP_NET_CFG_CTRL_FREELIST_EN (0x1 << 6) /* Freelist enable flag bit */ +#define NFP_NET_CFG_CTRL_FLOW_STEER (0x1 << 8) /* Flow steering */ #define NFP_NET_CFG_CAP_WORD1 0x00a4 diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c index e75cbb287625..d7896391b8ba 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c @@ -1317,6 +1317,116 @@ static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, return 0; } +#define NFP_FS_MAX_ENTRY 1024 + +static int nfp_net_fs_to_ethtool(struct nfp_fs_entry *entry, struct ethtool_rxnfc *cmd) +{ + struct ethtool_rx_flow_spec *fs = &cmd->fs; + unsigned int i; + + switch (entry->flow_type & ~FLOW_RSS) { + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + fs->h_u.tcp_ip4_spec.ip4src = entry->key.sip4; + fs->h_u.tcp_ip4_spec.ip4dst = entry->key.dip4; + fs->h_u.tcp_ip4_spec.psrc = entry->key.sport; + fs->h_u.tcp_ip4_spec.pdst = entry->key.dport; + fs->m_u.tcp_ip4_spec.ip4src = entry->msk.sip4; + fs->m_u.tcp_ip4_spec.ip4dst = entry->msk.dip4; + fs->m_u.tcp_ip4_spec.psrc = entry->msk.sport; + fs->m_u.tcp_ip4_spec.pdst = entry->msk.dport; + break; + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + for (i = 0; i < 4; i++) { + fs->h_u.tcp_ip6_spec.ip6src[i] = entry->key.sip6[i]; + fs->h_u.tcp_ip6_spec.ip6dst[i] = entry->key.dip6[i]; + fs->m_u.tcp_ip6_spec.ip6src[i] = entry->msk.sip6[i]; + fs->m_u.tcp_ip6_spec.ip6dst[i] = entry->msk.dip6[i]; + } + fs->h_u.tcp_ip6_spec.psrc = entry->key.sport; + fs->h_u.tcp_ip6_spec.pdst = entry->key.dport; + fs->m_u.tcp_ip6_spec.psrc = entry->msk.sport; + fs->m_u.tcp_ip6_spec.pdst = entry->msk.dport; + break; + case IPV4_USER_FLOW: + fs->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; + fs->h_u.usr_ip4_spec.ip4src = entry->key.sip4; + fs->h_u.usr_ip4_spec.ip4dst = entry->key.dip4; + fs->h_u.usr_ip4_spec.proto = entry->key.l4_proto; + fs->m_u.usr_ip4_spec.ip4src = entry->msk.sip4; + fs->m_u.usr_ip4_spec.ip4dst = entry->msk.dip4; + fs->m_u.usr_ip4_spec.proto = entry->msk.l4_proto; + break; + case IPV6_USER_FLOW: + for (i = 0; i < 4; i++) { + fs->h_u.usr_ip6_spec.ip6src[i] = entry->key.sip6[i]; + fs->h_u.usr_ip6_spec.ip6dst[i] = entry->key.dip6[i]; + fs->m_u.usr_ip6_spec.ip6src[i] = entry->msk.sip6[i]; + fs->m_u.usr_ip6_spec.ip6dst[i] = entry->msk.dip6[i]; + } + fs->h_u.usr_ip6_spec.l4_proto = entry->key.l4_proto; + fs->m_u.usr_ip6_spec.l4_proto = entry->msk.l4_proto; + break; + case ETHER_FLOW: + fs->h_u.ether_spec.h_proto = entry->key.l3_proto; + fs->m_u.ether_spec.h_proto = entry->msk.l3_proto; + break; + default: + return -EINVAL; + } + + fs->flow_type = entry->flow_type; + fs->ring_cookie = entry->action; + + if (fs->flow_type & FLOW_RSS) { + /* Only rss_context of 0 is supported. */ + cmd->rss_context = 0; + /* RSS is used, mask the ring. */ + fs->ring_cookie |= ETHTOOL_RX_FLOW_SPEC_RING; + } + + return 0; +} + +static int nfp_net_get_fs_rule(struct nfp_net *nn, struct ethtool_rxnfc *cmd) +{ + struct nfp_fs_entry *entry; + + if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) + return -EOPNOTSUPP; + + if (cmd->fs.location >= NFP_FS_MAX_ENTRY) + return -EINVAL; + + list_for_each_entry(entry, &nn->fs.list, node) { + if (entry->loc == cmd->fs.location) + return nfp_net_fs_to_ethtool(entry, cmd); + + if (entry->loc > cmd->fs.location) + /* no need to continue */ + return -ENOENT; + } + + return -ENOENT; +} + +static int nfp_net_get_fs_loc(struct nfp_net *nn, u32 *rule_locs) +{ + struct nfp_fs_entry *entry; + u32 count = 0; + + if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) + return -EOPNOTSUPP; + + list_for_each_entry(entry, &nn->fs.list, node) + rule_locs[count++] = entry->loc; + + return 0; +} + static int nfp_net_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, u32 *rule_locs) { @@ -1326,6 +1436,14 @@ static int nfp_net_get_rxnfc(struct net_device *netdev, case ETHTOOL_GRXRINGS: cmd->data = nn->dp.num_rx_rings; return 0; + case ETHTOOL_GRXCLSRLCNT: + cmd->rule_cnt = nn->fs.count; + return 0; + case ETHTOOL_GRXCLSRULE: + return nfp_net_get_fs_rule(nn, cmd); + case ETHTOOL_GRXCLSRLALL: + cmd->data = NFP_FS_MAX_ENTRY; + return nfp_net_get_fs_loc(nn, rule_locs); case ETHTOOL_GRXFH: return nfp_net_get_rss_hash_opts(nn, cmd); default: @@ -1385,6 +1503,253 @@ static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, return 0; } +static int nfp_net_fs_from_ethtool(struct nfp_fs_entry *entry, struct ethtool_rx_flow_spec *fs) +{ + unsigned int i; + + /* FLOW_EXT/FLOW_MAC_EXT is not supported. */ + switch (fs->flow_type & ~FLOW_RSS) { + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + entry->msk.sip4 = fs->m_u.tcp_ip4_spec.ip4src; + entry->msk.dip4 = fs->m_u.tcp_ip4_spec.ip4dst; + entry->msk.sport = fs->m_u.tcp_ip4_spec.psrc; + entry->msk.dport = fs->m_u.tcp_ip4_spec.pdst; + entry->key.sip4 = fs->h_u.tcp_ip4_spec.ip4src & entry->msk.sip4; + entry->key.dip4 = fs->h_u.tcp_ip4_spec.ip4dst & entry->msk.dip4; + entry->key.sport = fs->h_u.tcp_ip4_spec.psrc & entry->msk.sport; + entry->key.dport = fs->h_u.tcp_ip4_spec.pdst & entry->msk.dport; + break; + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + for (i = 0; i < 4; i++) { + entry->msk.sip6[i] = fs->m_u.tcp_ip6_spec.ip6src[i]; + entry->msk.dip6[i] = fs->m_u.tcp_ip6_spec.ip6dst[i]; + entry->key.sip6[i] = fs->h_u.tcp_ip6_spec.ip6src[i] & entry->msk.sip6[i]; + entry->key.dip6[i] = fs->h_u.tcp_ip6_spec.ip6dst[i] & entry->msk.dip6[i]; + } + entry->msk.sport = fs->m_u.tcp_ip6_spec.psrc; + entry->msk.dport = fs->m_u.tcp_ip6_spec.pdst; + entry->key.sport = fs->h_u.tcp_ip6_spec.psrc & entry->msk.sport; + entry->key.dport = fs->h_u.tcp_ip6_spec.pdst & entry->msk.dport; + break; + case IPV4_USER_FLOW: + entry->msk.sip4 = fs->m_u.usr_ip4_spec.ip4src; + entry->msk.dip4 = fs->m_u.usr_ip4_spec.ip4dst; + entry->msk.l4_proto = fs->m_u.usr_ip4_spec.proto; + entry->key.sip4 = fs->h_u.usr_ip4_spec.ip4src & entry->msk.sip4; + entry->key.dip4 = fs->h_u.usr_ip4_spec.ip4dst & entry->msk.dip4; + entry->key.l4_proto = fs->h_u.usr_ip4_spec.proto & entry->msk.l4_proto; + break; + case IPV6_USER_FLOW: + for (i = 0; i < 4; i++) { + entry->msk.sip6[i] = fs->m_u.usr_ip6_spec.ip6src[i]; + entry->msk.dip6[i] = fs->m_u.usr_ip6_spec.ip6dst[i]; + entry->key.sip6[i] = fs->h_u.usr_ip6_spec.ip6src[i] & entry->msk.sip6[i]; + entry->key.dip6[i] = fs->h_u.usr_ip6_spec.ip6dst[i] & entry->msk.dip6[i]; + } + entry->msk.l4_proto = fs->m_u.usr_ip6_spec.l4_proto; + entry->key.l4_proto = fs->h_u.usr_ip6_spec.l4_proto & entry->msk.l4_proto; + break; + case ETHER_FLOW: + entry->msk.l3_proto = fs->m_u.ether_spec.h_proto; + entry->key.l3_proto = fs->h_u.ether_spec.h_proto & entry->msk.l3_proto; + break; + default: + return -EINVAL; + } + + switch (fs->flow_type & ~FLOW_RSS) { + case TCP_V4_FLOW: + case TCP_V6_FLOW: + entry->key.l4_proto = IPPROTO_TCP; + entry->msk.l4_proto = 0xff; + break; + case UDP_V4_FLOW: + case UDP_V6_FLOW: + entry->key.l4_proto = IPPROTO_UDP; + entry->msk.l4_proto = 0xff; + break; + case SCTP_V4_FLOW: + case SCTP_V6_FLOW: + entry->key.l4_proto = IPPROTO_SCTP; + entry->msk.l4_proto = 0xff; + break; + } + + entry->flow_type = fs->flow_type; + entry->action = fs->ring_cookie; + entry->loc = fs->location; + + return 0; +} + +static int nfp_net_fs_check_existing(struct nfp_net *nn, struct nfp_fs_entry *new) +{ + struct nfp_fs_entry *entry; + + list_for_each_entry(entry, &nn->fs.list, node) { + if (new->loc != entry->loc && + !((new->flow_type ^ entry->flow_type) & ~FLOW_RSS) && + !memcmp(&new->key, &entry->key, sizeof(new->key)) && + !memcmp(&new->msk, &entry->msk, sizeof(new->msk))) + return entry->loc; + } + + /* -1 means no duplicates */ + return -1; +} + +static int nfp_net_fs_add(struct nfp_net *nn, struct ethtool_rxnfc *cmd) +{ + struct ethtool_rx_flow_spec *fs = &cmd->fs; + struct nfp_fs_entry *new, *entry; + bool unsupp_mask; + int err, id; + + if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) + return -EOPNOTSUPP; + + /* Only default RSS context(0) is supported. */ + if ((fs->flow_type & FLOW_RSS) && cmd->rss_context) + return -EOPNOTSUPP; + + if (fs->location >= NFP_FS_MAX_ENTRY) + return -EINVAL; + + if (fs->ring_cookie != RX_CLS_FLOW_DISC && + fs->ring_cookie >= nn->dp.num_rx_rings) + return -EINVAL; + + /* FLOW_EXT/FLOW_MAC_EXT is not supported. */ + switch (fs->flow_type & ~FLOW_RSS) { + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + unsupp_mask = !!fs->m_u.tcp_ip4_spec.tos; + break; + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + unsupp_mask = !!fs->m_u.tcp_ip6_spec.tclass; + break; + case IPV4_USER_FLOW: + unsupp_mask = !!fs->m_u.usr_ip4_spec.l4_4_bytes || + !!fs->m_u.usr_ip4_spec.tos || + !!fs->m_u.usr_ip4_spec.ip_ver; + /* ip_ver must be ETH_RX_NFC_IP4. */ + unsupp_mask |= fs->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4; + break; + case IPV6_USER_FLOW: + unsupp_mask = !!fs->m_u.usr_ip6_spec.l4_4_bytes || + !!fs->m_u.usr_ip6_spec.tclass; + break; + case ETHER_FLOW: + if (fs->h_u.ether_spec.h_proto == htons(ETH_P_IP) || + fs->h_u.ether_spec.h_proto == htons(ETH_P_IPV6)) { + nn_err(nn, "Please use ip4/ip6 flow type instead.\n"); + return -EOPNOTSUPP; + } + /* Only unmasked ethtype is supported. */ + unsupp_mask = !is_zero_ether_addr(fs->m_u.ether_spec.h_dest) || + !is_zero_ether_addr(fs->m_u.ether_spec.h_source) || + (fs->m_u.ether_spec.h_proto != htons(0xffff)); + break; + default: + return -EOPNOTSUPP; + } + + if (unsupp_mask) + return -EOPNOTSUPP; + + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return -ENOMEM; + + nfp_net_fs_from_ethtool(new, fs); + + id = nfp_net_fs_check_existing(nn, new); + if (id >= 0) { + nn_err(nn, "Identical rule is existing in %d.\n", id); + err = -EINVAL; + goto err; + } + + /* Insert to list in ascending order of location. */ + list_for_each_entry(entry, &nn->fs.list, node) { + if (entry->loc == fs->location) { + err = nfp_net_fs_del_hw(nn, entry); + if (err) + goto err; + + nn->fs.count--; + err = nfp_net_fs_add_hw(nn, new); + if (err) + goto err; + + nn->fs.count++; + list_replace(&entry->node, &new->node); + kfree(entry); + + return 0; + } + + if (entry->loc > fs->location) + break; + } + + if (nn->fs.count == NFP_FS_MAX_ENTRY) { + err = -ENOSPC; + goto err; + } + + err = nfp_net_fs_add_hw(nn, new); + if (err) + goto err; + + list_add_tail(&new->node, &entry->node); + nn->fs.count++; + + return 0; + +err: + kfree(new); + return err; +} + +static int nfp_net_fs_del(struct nfp_net *nn, struct ethtool_rxnfc *cmd) +{ + struct nfp_fs_entry *entry; + int err; + + if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) + return -EOPNOTSUPP; + + if (!nn->fs.count || cmd->fs.location >= NFP_FS_MAX_ENTRY) + return -EINVAL; + + list_for_each_entry(entry, &nn->fs.list, node) { + if (entry->loc == cmd->fs.location) { + err = nfp_net_fs_del_hw(nn, entry); + if (err) + return err; + + list_del(&entry->node); + kfree(entry); + nn->fs.count--; + + return 0; + } else if (entry->loc > cmd->fs.location) { + /* no need to continue */ + break; + } + } + + return -ENOENT; +} + static int nfp_net_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) { @@ -1393,6 +1758,10 @@ static int nfp_net_set_rxnfc(struct net_device *netdev, switch (cmd->cmd) { case ETHTOOL_SRXFH: return nfp_net_set_rss_hash_opt(nn, cmd); + case ETHTOOL_SRXCLSRLINS: + return nfp_net_fs_add(nn, cmd); + case ETHTOOL_SRXCLSRLDEL: + return nfp_net_fs_del(nn, cmd); default: return -EOPNOTSUPP; } |