diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_filter.c')
-rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_filter.c | 423 |
1 files changed, 366 insertions, 57 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c index b823bfe2ea4d..9673d19308e6 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_filter.c +++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c @@ -83,7 +83,7 @@ struct qede_arfs_fltr_node { struct qede_arfs_tuple tuple; u32 flow_id; - u16 sw_id; + u64 sw_id; u16 rxq_id; u16 next_rxq_id; u8 vfid; @@ -138,7 +138,7 @@ static void qede_configure_arfs_fltr(struct qede_dev *edev, n->tuple.stringify(&n->tuple, tuple_buffer); DP_VERBOSE(edev, NETIF_MSG_RX_STATUS, - "%s sw_id[0x%x]: %s [vf %u queue %d]\n", + "%s sw_id[0x%llx]: %s [vf %u queue %d]\n", add_fltr ? "Adding" : "Deleting", n->sw_id, tuple_buffer, n->vfid, rxq_id); } @@ -152,7 +152,10 @@ static void qede_free_arfs_filter(struct qede_dev *edev, struct qede_arfs_fltr_node *fltr) { kfree(fltr->data); - clear_bit(fltr->sw_id, edev->arfs->arfs_fltr_bmap); + + if (fltr->sw_id < QEDE_RFS_MAX_FLTR) + clear_bit(fltr->sw_id, edev->arfs->arfs_fltr_bmap); + kfree(fltr); } @@ -214,7 +217,7 @@ void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc) if (fw_rc) { DP_NOTICE(edev, - "Failed arfs filter configuration fw_rc=%d, flow_id=%d, sw_id=%d, src_port=%d, dst_port=%d, rxq=%d\n", + "Failed arfs filter configuration fw_rc=%d, flow_id=%d, sw_id=0x%llx, src_port=%d, dst_port=%d, rxq=%d\n", fw_rc, fltr->flow_id, fltr->sw_id, ntohs(fltr->tuple.src_port), ntohs(fltr->tuple.dst_port), fltr->rxq_id); @@ -1116,7 +1119,6 @@ int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp) case XDP_SETUP_PROG: return qede_xdp_set(edev, xdp->prog); case XDP_QUERY_PROG: - xdp->prog_attached = !!edev->xdp_prog; xdp->prog_id = edev->xdp_prog ? edev->xdp_prog->aux->id : 0; return 0; default: @@ -1349,7 +1351,7 @@ out: } static struct qede_arfs_fltr_node * -qede_get_arfs_fltr_by_loc(struct hlist_head *head, u32 location) +qede_get_arfs_fltr_by_loc(struct hlist_head *head, u64 location) { struct qede_arfs_fltr_node *fltr; @@ -1600,6 +1602,69 @@ static int qede_flow_spec_validate_unused(struct qede_dev *edev, return 0; } +static int qede_set_v4_tuple_to_profile(struct qede_dev *edev, + struct qede_arfs_tuple *t) +{ + /* We must have Only 4-tuples/l4 port/src ip/dst ip + * as an input. + */ + if (t->src_port && t->dst_port && t->src_ipv4 && t->dst_ipv4) { + t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE; + } else if (!t->src_port && t->dst_port && + !t->src_ipv4 && !t->dst_ipv4) { + t->mode = QED_FILTER_CONFIG_MODE_L4_PORT; + } else if (!t->src_port && !t->dst_port && + !t->dst_ipv4 && t->src_ipv4) { + t->mode = QED_FILTER_CONFIG_MODE_IP_SRC; + } else if (!t->src_port && !t->dst_port && + t->dst_ipv4 && !t->src_ipv4) { + t->mode = QED_FILTER_CONFIG_MODE_IP_DEST; + } else { + DP_INFO(edev, "Invalid N-tuple\n"); + return -EOPNOTSUPP; + } + + t->ip_comp = qede_flow_spec_ipv4_cmp; + t->build_hdr = qede_flow_build_ipv4_hdr; + t->stringify = qede_flow_stringify_ipv4_hdr; + + return 0; +} + +static int qede_set_v6_tuple_to_profile(struct qede_dev *edev, + struct qede_arfs_tuple *t, + struct in6_addr *zaddr) +{ + /* We must have Only 4-tuples/l4 port/src ip/dst ip + * as an input. + */ + if (t->src_port && t->dst_port && + memcmp(&t->src_ipv6, zaddr, sizeof(struct in6_addr)) && + memcmp(&t->dst_ipv6, zaddr, sizeof(struct in6_addr))) { + t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE; + } else if (!t->src_port && t->dst_port && + !memcmp(&t->src_ipv6, zaddr, sizeof(struct in6_addr)) && + !memcmp(&t->dst_ipv6, zaddr, sizeof(struct in6_addr))) { + t->mode = QED_FILTER_CONFIG_MODE_L4_PORT; + } else if (!t->src_port && !t->dst_port && + !memcmp(&t->dst_ipv6, zaddr, sizeof(struct in6_addr)) && + memcmp(&t->src_ipv6, zaddr, sizeof(struct in6_addr))) { + t->mode = QED_FILTER_CONFIG_MODE_IP_SRC; + } else if (!t->src_port && !t->dst_port && + memcmp(&t->dst_ipv6, zaddr, sizeof(struct in6_addr)) && + !memcmp(&t->src_ipv6, zaddr, sizeof(struct in6_addr))) { + t->mode = QED_FILTER_CONFIG_MODE_IP_DEST; + } else { + DP_INFO(edev, "Invalid N-tuple\n"); + return -EOPNOTSUPP; + } + + t->ip_comp = qede_flow_spec_ipv6_cmp; + t->build_hdr = qede_flow_build_ipv6_hdr; + + return 0; +} + static int qede_flow_spec_to_tuple_ipv4_common(struct qede_dev *edev, struct qede_arfs_tuple *t, struct ethtool_rx_flow_spec *fs) @@ -1639,27 +1704,7 @@ static int qede_flow_spec_to_tuple_ipv4_common(struct qede_dev *edev, t->src_port = fs->h_u.tcp_ip4_spec.psrc; t->dst_port = fs->h_u.tcp_ip4_spec.pdst; - /* We must either have a valid 4-tuple or only dst port - * or only src ip as an input - */ - if (t->src_port && t->dst_port && t->src_ipv4 && t->dst_ipv4) { - t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE; - } else if (!t->src_port && t->dst_port && - !t->src_ipv4 && !t->dst_ipv4) { - t->mode = QED_FILTER_CONFIG_MODE_L4_PORT; - } else if (!t->src_port && !t->dst_port && - !t->dst_ipv4 && t->src_ipv4) { - t->mode = QED_FILTER_CONFIG_MODE_IP_SRC; - } else { - DP_INFO(edev, "Invalid N-tuple\n"); - return -EOPNOTSUPP; - } - - t->ip_comp = qede_flow_spec_ipv4_cmp; - t->build_hdr = qede_flow_build_ipv4_hdr; - t->stringify = qede_flow_stringify_ipv4_hdr; - - return 0; + return qede_set_v4_tuple_to_profile(edev, t); } static int qede_flow_spec_to_tuple_tcpv4(struct qede_dev *edev, @@ -1691,10 +1736,8 @@ static int qede_flow_spec_to_tuple_ipv6_common(struct qede_dev *edev, struct ethtool_rx_flow_spec *fs) { struct in6_addr zero_addr; - void *p; - p = &zero_addr; - memset(p, 0, sizeof(zero_addr)); + memset(&zero_addr, 0, sizeof(zero_addr)); if ((fs->h_u.tcp_ip6_spec.psrc & fs->m_u.tcp_ip6_spec.psrc) != fs->h_u.tcp_ip6_spec.psrc) { @@ -1721,30 +1764,7 @@ static int qede_flow_spec_to_tuple_ipv6_common(struct qede_dev *edev, t->src_port = fs->h_u.tcp_ip6_spec.psrc; t->dst_port = fs->h_u.tcp_ip6_spec.pdst; - /* We must make sure we have a valid 4-tuple or only dest port - * or only src ip as an input - */ - if (t->src_port && t->dst_port && - memcmp(&t->src_ipv6, p, sizeof(struct in6_addr)) && - memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr))) { - t->mode = QED_FILTER_CONFIG_MODE_5_TUPLE; - } else if (!t->src_port && t->dst_port && - !memcmp(&t->src_ipv6, p, sizeof(struct in6_addr)) && - !memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr))) { - t->mode = QED_FILTER_CONFIG_MODE_L4_PORT; - } else if (!t->src_port && !t->dst_port && - !memcmp(&t->dst_ipv6, p, sizeof(struct in6_addr)) && - memcmp(&t->src_ipv6, p, sizeof(struct in6_addr))) { - t->mode = QED_FILTER_CONFIG_MODE_IP_SRC; - } else { - DP_INFO(edev, "Invalid N-tuple\n"); - return -EOPNOTSUPP; - } - - t->ip_comp = qede_flow_spec_ipv6_cmp; - t->build_hdr = qede_flow_build_ipv6_hdr; - - return 0; + return qede_set_v6_tuple_to_profile(edev, t, &zero_addr); } static int qede_flow_spec_to_tuple_tcpv6(struct qede_dev *edev, @@ -1942,9 +1962,8 @@ unlock: return rc; } -int qede_del_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info) +int qede_delete_flow_filter(struct qede_dev *edev, u64 cookie) { - struct ethtool_rx_flow_spec *fsp = &info->fs; struct qede_arfs_fltr_node *fltr = NULL; int rc = -EPERM; @@ -1953,7 +1972,7 @@ int qede_del_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info) goto unlock; fltr = qede_get_arfs_fltr_by_loc(QEDE_ARFS_BUCKET_HEAD(edev, 0), - fsp->location); + cookie); if (!fltr) goto unlock; @@ -1983,3 +2002,293 @@ unlock: __qede_unlock(edev); return count; } + +static int qede_parse_actions(struct qede_dev *edev, + struct tcf_exts *exts) +{ + int rc = -EINVAL, num_act = 0; + const struct tc_action *a; + bool is_drop = false; + LIST_HEAD(actions); + + if (!tcf_exts_has_actions(exts)) { + DP_NOTICE(edev, "No tc actions received\n"); + return rc; + } + + tcf_exts_to_list(exts, &actions); + list_for_each_entry(a, &actions, list) { + num_act++; + + if (is_tcf_gact_shot(a)) + is_drop = true; + } + + if (num_act == 1 && is_drop) + return 0; + + return rc; +} + +static int +qede_tc_parse_ports(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *t) +{ + if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { + struct flow_dissector_key_ports *key, *mask; + + key = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_PORTS, + f->key); + mask = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_PORTS, + f->mask); + + if ((key->src && mask->src != U16_MAX) || + (key->dst && mask->dst != U16_MAX)) { + DP_NOTICE(edev, "Do not support ports masks\n"); + return -EINVAL; + } + + t->src_port = key->src; + t->dst_port = key->dst; + } + + return 0; +} + +static int +qede_tc_parse_v6_common(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *t) +{ + struct in6_addr zero_addr, addr; + + memset(&zero_addr, 0, sizeof(addr)); + memset(&addr, 0xff, sizeof(addr)); + + if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) { + struct flow_dissector_key_ipv6_addrs *key, *mask; + + key = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_IPV6_ADDRS, + f->key); + mask = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_IPV6_ADDRS, + f->mask); + + if ((memcmp(&key->src, &zero_addr, sizeof(addr)) && + memcmp(&mask->src, &addr, sizeof(addr))) || + (memcmp(&key->dst, &zero_addr, sizeof(addr)) && + memcmp(&mask->dst, &addr, sizeof(addr)))) { + DP_NOTICE(edev, + "Do not support IPv6 address prefix/mask\n"); + return -EINVAL; + } + + memcpy(&t->src_ipv6, &key->src, sizeof(addr)); + memcpy(&t->dst_ipv6, &key->dst, sizeof(addr)); + } + + if (qede_tc_parse_ports(edev, f, t)) + return -EINVAL; + + return qede_set_v6_tuple_to_profile(edev, t, &zero_addr); +} + +static int +qede_tc_parse_v4_common(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *t) +{ + if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) { + struct flow_dissector_key_ipv4_addrs *key, *mask; + + key = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_IPV4_ADDRS, + f->key); + mask = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_IPV4_ADDRS, + f->mask); + + if ((key->src && mask->src != U32_MAX) || + (key->dst && mask->dst != U32_MAX)) { + DP_NOTICE(edev, "Do not support ipv4 prefix/masks\n"); + return -EINVAL; + } + + t->src_ipv4 = key->src; + t->dst_ipv4 = key->dst; + } + + if (qede_tc_parse_ports(edev, f, t)) + return -EINVAL; + + return qede_set_v4_tuple_to_profile(edev, t); +} + +static int +qede_tc_parse_tcp_v6(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *tuple) +{ + tuple->ip_proto = IPPROTO_TCP; + tuple->eth_proto = htons(ETH_P_IPV6); + + return qede_tc_parse_v6_common(edev, f, tuple); +} + +static int +qede_tc_parse_tcp_v4(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *tuple) +{ + tuple->ip_proto = IPPROTO_TCP; + tuple->eth_proto = htons(ETH_P_IP); + + return qede_tc_parse_v4_common(edev, f, tuple); +} + +static int +qede_tc_parse_udp_v6(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *tuple) +{ + tuple->ip_proto = IPPROTO_UDP; + tuple->eth_proto = htons(ETH_P_IPV6); + + return qede_tc_parse_v6_common(edev, f, tuple); +} + +static int +qede_tc_parse_udp_v4(struct qede_dev *edev, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *tuple) +{ + tuple->ip_proto = IPPROTO_UDP; + tuple->eth_proto = htons(ETH_P_IP); + + return qede_tc_parse_v4_common(edev, f, tuple); +} + +static int +qede_parse_flower_attr(struct qede_dev *edev, __be16 proto, + struct tc_cls_flower_offload *f, + struct qede_arfs_tuple *tuple) +{ + int rc = -EINVAL; + u8 ip_proto = 0; + + memset(tuple, 0, sizeof(*tuple)); + + if (f->dissector->used_keys & + ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | + BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_BASIC) | + BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_PORTS))) { + DP_NOTICE(edev, "Unsupported key set:0x%x\n", + f->dissector->used_keys); + return -EOPNOTSUPP; + } + + if (proto != htons(ETH_P_IP) && + proto != htons(ETH_P_IPV6)) { + DP_NOTICE(edev, "Unsupported proto=0x%x\n", proto); + return -EPROTONOSUPPORT; + } + + if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { + struct flow_dissector_key_basic *key; + + key = skb_flow_dissector_target(f->dissector, + FLOW_DISSECTOR_KEY_BASIC, + f->key); + ip_proto = key->ip_proto; + } + + if (ip_proto == IPPROTO_TCP && proto == htons(ETH_P_IP)) + rc = qede_tc_parse_tcp_v4(edev, f, tuple); + else if (ip_proto == IPPROTO_TCP && proto == htons(ETH_P_IPV6)) + rc = qede_tc_parse_tcp_v6(edev, f, tuple); + else if (ip_proto == IPPROTO_UDP && proto == htons(ETH_P_IP)) + rc = qede_tc_parse_udp_v4(edev, f, tuple); + else if (ip_proto == IPPROTO_UDP && proto == htons(ETH_P_IPV6)) + rc = qede_tc_parse_udp_v6(edev, f, tuple); + else + DP_NOTICE(edev, "Invalid tc protocol request\n"); + + return rc; +} + +int qede_add_tc_flower_fltr(struct qede_dev *edev, __be16 proto, + struct tc_cls_flower_offload *f) +{ + struct qede_arfs_fltr_node *n; + int min_hlen, rc = -EINVAL; + struct qede_arfs_tuple t; + + __qede_lock(edev); + + if (!edev->arfs) { + rc = -EPERM; + goto unlock; + } + + /* parse flower attribute and prepare filter */ + if (qede_parse_flower_attr(edev, proto, f, &t)) + goto unlock; + + /* Validate profile mode and number of filters */ + if ((edev->arfs->filter_count && edev->arfs->mode != t.mode) || + edev->arfs->filter_count == QEDE_RFS_MAX_FLTR) { + DP_NOTICE(edev, + "Filter configuration invalidated, filter mode=0x%x, configured mode=0x%x, filter count=0x%x\n", + t.mode, edev->arfs->mode, edev->arfs->filter_count); + goto unlock; + } + + /* parse tc actions and get the vf_id */ + if (qede_parse_actions(edev, f->exts)) + goto unlock; + + if (qede_flow_find_fltr(edev, &t)) { + rc = -EEXIST; + goto unlock; + } + + n = kzalloc(sizeof(*n), GFP_KERNEL); + if (!n) { + rc = -ENOMEM; + goto unlock; + } + + min_hlen = qede_flow_get_min_header_size(&t); + + n->data = kzalloc(min_hlen, GFP_KERNEL); + if (!n->data) { + kfree(n); + rc = -ENOMEM; + goto unlock; + } + + memcpy(&n->tuple, &t, sizeof(n->tuple)); + + n->buf_len = min_hlen; + n->b_is_drop = true; + n->sw_id = f->cookie; + + n->tuple.build_hdr(&n->tuple, n->data); + + rc = qede_enqueue_fltr_and_config_searcher(edev, n, 0); + if (rc) + goto unlock; + + qede_configure_arfs_fltr(edev, n, n->rxq_id, true); + rc = qede_poll_arfs_filter_config(edev, n); + +unlock: + __qede_unlock(edev); + return rc; +} |