diff options
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/action.c | 28 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 27 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/main.c | 18 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/main.h | 14 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/match.c | 38 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/metadata.c | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/offload.c | 243 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c | 19 | ||||
| -rw-r--r-- | include/net/pkt_cls.h | 34 | ||||
| -rw-r--r-- | include/net/sch_generic.h | 3 | ||||
| -rw-r--r-- | net/sched/cls_api.c | 256 |
11 files changed, 531 insertions, 161 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c index fbc052d5bb47..8d54b36afee8 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/action.c +++ b/drivers/net/ethernet/netronome/nfp/flower/action.c @@ -2,7 +2,6 @@ /* Copyright (C) 2017-2018 Netronome Systems, Inc. */ #include <linux/bitfield.h> -#include <net/geneve.h> #include <net/pkt_cls.h> #include <net/switchdev.h> #include <net/tc_act/tc_csum.h> @@ -11,7 +10,6 @@ #include <net/tc_act/tc_pedit.h> #include <net/tc_act/tc_vlan.h> #include <net/tc_act/tc_tunnel_key.h> -#include <net/vxlan.h> #include "cmsg.h" #include "main.h" @@ -92,18 +90,6 @@ nfp_fl_pre_lag(struct nfp_app *app, const struct tc_action *action, return act_size; } -static bool nfp_fl_netdev_is_tunnel_type(struct net_device *out_dev, - enum nfp_flower_tun_type tun_type) -{ - if (netif_is_vxlan(out_dev)) - return tun_type == NFP_FL_TUNNEL_VXLAN; - - if (netif_is_geneve(out_dev)) - return tun_type == NFP_FL_TUNNEL_GENEVE; - - return false; -} - static int nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output, const struct tc_action *action, struct nfp_fl_payload *nfp_flow, @@ -149,11 +135,12 @@ nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output, /* Set action output parameters. */ output->flags = cpu_to_be16(tmp_flags); - /* Only offload if egress ports are on the same device as the - * ingress port. - */ - if (!switchdev_port_same_parent_id(in_dev, out_dev)) - return -EOPNOTSUPP; + if (nfp_netdev_is_nfp_repr(in_dev)) { + /* Confirm ingress and egress are on same device. */ + if (!switchdev_port_same_parent_id(in_dev, out_dev)) + return -EOPNOTSUPP; + } + if (!nfp_netdev_is_nfp_repr(out_dev)) return -EOPNOTSUPP; @@ -840,9 +827,8 @@ nfp_flower_loop_action(struct nfp_app *app, const struct tc_action *a, *a_len += sizeof(struct nfp_fl_push_vlan); } else if (is_tcf_tunnel_set(a)) { struct ip_tunnel_info *ip_tun = tcf_tunnel_info(a); - struct nfp_repr *repr = netdev_priv(netdev); - *tun_type = nfp_fl_get_tun_from_act_l4_port(repr->app, a); + *tun_type = nfp_fl_get_tun_from_act_l4_port(app, a); if (*tun_type == NFP_FL_TUNNEL_NONE) return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h index 3e391555e191..15f41cfef9f1 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h @@ -8,6 +8,7 @@ #include <linux/skbuff.h> #include <linux/types.h> #include <net/geneve.h> +#include <net/vxlan.h> #include "../nfp_app.h" #include "../nfpcore/nfp_cpp.h" @@ -499,6 +500,32 @@ static inline int nfp_flower_cmsg_get_data_len(struct sk_buff *skb) return skb->len - NFP_FLOWER_CMSG_HLEN; } +static inline bool +nfp_fl_netdev_is_tunnel_type(struct net_device *netdev, + enum nfp_flower_tun_type tun_type) +{ + if (netif_is_vxlan(netdev)) + return tun_type == NFP_FL_TUNNEL_VXLAN; + if (netif_is_geneve(netdev)) + return tun_type == NFP_FL_TUNNEL_GENEVE; + + return false; +} + +static inline bool nfp_fl_is_netdev_to_offload(struct net_device *netdev) +{ + if (!netdev->rtnl_link_ops) + return false; + if (!strcmp(netdev->rtnl_link_ops->kind, "openvswitch")) + return true; + if (netif_is_vxlan(netdev)) + return true; + if (netif_is_geneve(netdev)) + return true; + + return false; +} + struct sk_buff * nfp_flower_cmsg_mac_repr_start(struct nfp_app *app, unsigned int num_ports); void diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c index 2ad00773750f..5059110a1768 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.c +++ b/drivers/net/ethernet/netronome/nfp/flower/main.c @@ -146,23 +146,12 @@ nfp_flower_repr_netdev_stop(struct nfp_app *app, struct nfp_repr *repr) return nfp_flower_cmsg_portmod(repr, false, repr->netdev->mtu, false); } -static int -nfp_flower_repr_netdev_init(struct nfp_app *app, struct net_device *netdev) -{ - return tc_setup_cb_egdev_register(netdev, - nfp_flower_setup_tc_egress_cb, - netdev_priv(netdev)); -} - static void nfp_flower_repr_netdev_clean(struct nfp_app *app, struct net_device *netdev) { struct nfp_repr *repr = netdev_priv(netdev); kfree(repr->app_priv); - - tc_setup_cb_egdev_unregister(netdev, nfp_flower_setup_tc_egress_cb, - netdev_priv(netdev)); } static void @@ -568,6 +557,8 @@ static int nfp_flower_init(struct nfp_app *app) goto err_cleanup_metadata; } + INIT_LIST_HEAD(&app_priv->indr_block_cb_priv); + return 0; err_cleanup_metadata: @@ -684,6 +675,10 @@ nfp_flower_netdev_event(struct nfp_app *app, struct net_device *netdev, return ret; } + ret = nfp_flower_reg_indir_block_handler(app, netdev, event); + if (ret & NOTIFY_STOP_MASK) + return ret; + return nfp_tunnel_mac_event_handler(app, netdev, event, ptr); } @@ -705,7 +700,6 @@ const struct nfp_app_type app_flower = { .vnic_init = nfp_flower_vnic_init, .vnic_clean = nfp_flower_vnic_clean, - .repr_init = nfp_flower_repr_netdev_init, .repr_preclean = nfp_flower_repr_netdev_preclean, .repr_clean = nfp_flower_repr_netdev_clean, diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h index 0f6f1675f6f1..b858bac47621 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/main.h +++ b/drivers/net/ethernet/netronome/nfp/flower/main.h @@ -20,7 +20,6 @@ struct nfp_fl_pre_lag; struct net_device; struct nfp_app; -#define NFP_FL_STATS_CTX_DONT_CARE cpu_to_be32(0xffffffff) #define NFP_FL_STATS_ELEM_RS FIELD_SIZEOF(struct nfp_fl_stats_id, \ init_unalloc) #define NFP_FLOWER_MASK_ENTRY_RS 256 @@ -130,6 +129,7 @@ struct nfp_fl_lag { * @reify_wait_queue: wait queue for repr reify response counting * @mtu_conf: Configuration of repr MTU value * @nfp_lag: Link aggregation data block + * @indr_block_cb_priv: List of priv data passed to indirect block cbs */ struct nfp_flower_priv { struct nfp_app *app; @@ -162,6 +162,7 @@ struct nfp_flower_priv { wait_queue_head_t reify_wait_queue; struct nfp_mtu_conf mtu_conf; struct nfp_fl_lag nfp_lag; + struct list_head indr_block_cb_priv; }; /** @@ -205,7 +206,6 @@ struct nfp_fl_payload { char *unmasked_data; char *mask_data; char *action_data; - bool ingress_offload; }; extern const struct rhashtable_params nfp_flower_table_params; @@ -222,7 +222,8 @@ void nfp_flower_metadata_cleanup(struct nfp_app *app); int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev, enum tc_setup_type type, void *type_data); -int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow, +int nfp_flower_compile_flow_match(struct nfp_app *app, + struct tc_cls_flower_offload *flow, struct nfp_fl_key_ls *key_ls, struct net_device *netdev, struct nfp_fl_payload *nfp_flow, @@ -240,7 +241,7 @@ int nfp_modify_flow_metadata(struct nfp_app *app, struct nfp_fl_payload * nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie, - struct net_device *netdev, __be32 host_ctx); + struct net_device *netdev); struct nfp_fl_payload * nfp_flower_remove_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie); @@ -256,8 +257,6 @@ void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4); void nfp_tunnel_add_ipv4_off(struct nfp_app *app, __be32 ipv4); void nfp_tunnel_request_route(struct nfp_app *app, struct sk_buff *skb); void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb); -int nfp_flower_setup_tc_egress_cb(enum tc_setup_type type, void *type_data, - void *cb_priv); void nfp_flower_lag_init(struct nfp_fl_lag *lag); void nfp_flower_lag_cleanup(struct nfp_fl_lag *lag); int nfp_flower_lag_reset(struct nfp_fl_lag *lag); @@ -270,5 +269,8 @@ int nfp_flower_lag_populate_pre_action(struct nfp_app *app, struct nfp_fl_pre_lag *pre_act); int nfp_flower_lag_get_output_id(struct nfp_app *app, struct net_device *master); +int nfp_flower_reg_indir_block_handler(struct nfp_app *app, + struct net_device *netdev, + unsigned long event); #endif diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index e54fb6034326..cdf75595f627 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -52,10 +52,13 @@ nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port, return 0; } - if (tun_type) + if (tun_type) { frame->in_port = cpu_to_be32(NFP_FL_PORT_TYPE_TUN | tun_type); - else + } else { + if (!cmsg_port) + return -EOPNOTSUPP; frame->in_port = cpu_to_be32(cmsg_port); + } return 0; } @@ -289,17 +292,21 @@ nfp_flower_compile_ipv4_udp_tun(struct nfp_flower_ipv4_udp_tun *frame, } } -int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow, +int nfp_flower_compile_flow_match(struct nfp_app *app, + struct tc_cls_flower_offload *flow, struct nfp_fl_key_ls *key_ls, struct net_device *netdev, struct nfp_fl_payload *nfp_flow, enum nfp_flower_tun_type tun_type) { - struct nfp_repr *netdev_repr; + u32 cmsg_port = 0; int err; u8 *ext; u8 *msk; + if (nfp_netdev_is_nfp_repr(netdev)) + cmsg_port = nfp_repr_get_port_id(netdev); + memset(nfp_flow->unmasked_data, 0, key_ls->key_size); memset(nfp_flow->mask_data, 0, key_ls->key_size); @@ -327,15 +334,13 @@ int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow, /* Populate Exact Port data. */ err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext, - nfp_repr_get_port_id(netdev), - false, tun_type); + cmsg_port, false, tun_type); if (err) return err; /* Populate Mask Port Data. */ err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk, - nfp_repr_get_port_id(netdev), - true, tun_type); + cmsg_port, true, tun_type); if (err) return err; @@ -399,16 +404,13 @@ int nfp_flower_compile_flow_match(struct tc_cls_flower_offload *flow, msk += sizeof(struct nfp_flower_ipv4_udp_tun); /* Configure tunnel end point MAC. */ - if (nfp_netdev_is_nfp_repr(netdev)) { - netdev_repr = netdev_priv(netdev); - nfp_tunnel_write_macs(netdev_repr->app); - - /* Store the tunnel destination in the rule data. - * This must be present and be an exact match. - */ - nfp_flow->nfp_tun_ipv4_addr = tun_dst; - nfp_tunnel_add_ipv4_off(netdev_repr->app, tun_dst); - } + nfp_tunnel_write_macs(app); + + /* Store the tunnel destination in the rule data. + * This must be present and be an exact match. + */ + nfp_flow->nfp_tun_ipv4_addr = tun_dst; + nfp_tunnel_add_ipv4_off(app, tun_dst); if (key_ls->key_layer_two & NFP_FLOWER_LAYER2_GENEVE_OP) { err = nfp_flower_compile_geneve_opt(ext, flow, false); diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c index 48729bf171e0..573a4400a26c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c +++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c @@ -21,7 +21,6 @@ struct nfp_mask_id_table { struct nfp_fl_flow_table_cmp_arg { struct net_device *netdev; unsigned long cookie; - __be32 host_ctx; }; static int nfp_release_stats_entry(struct nfp_app *app, u32 stats_context_id) @@ -76,14 +75,13 @@ static int nfp_get_stats_entry(struct nfp_app *app, u32 *stats_context_id) /* Must be called with either RTNL or rcu_read_lock */ struct nfp_fl_payload * nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie, - struct net_device *netdev, __be32 host_ctx) + struct net_device *netdev) { struct nfp_fl_flow_table_cmp_arg flower_cmp_arg; struct nfp_flower_priv *priv = app->priv; flower_cmp_arg.netdev = netdev; flower_cmp_arg.cookie = tc_flower_cookie; - flower_cmp_arg.host_ctx = host_ctx; return rhashtable_lookup_fast(&priv->flow_table, &flower_cmp_arg, nfp_flower_table_params); @@ -287,6 +285,7 @@ int nfp_compile_flow_metadata(struct nfp_app *app, nfp_flow->meta.host_ctx_id = cpu_to_be32(stats_cxt); nfp_flow->meta.host_cookie = cpu_to_be64(flow->cookie); + nfp_flow->ingress_dev = netdev; new_mask_id = 0; if (!nfp_check_mask_add(app, nfp_flow->mask_data, @@ -306,8 +305,7 @@ int nfp_compile_flow_metadata(struct nfp_app *app, priv->stats[stats_cxt].bytes = 0; priv->stats[stats_cxt].used = jiffies; - check_entry = nfp_flower_search_fl_table(app, flow->cookie, netdev, - NFP_FL_STATS_CTX_DONT_CARE); + check_entry = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (check_entry) { if (nfp_release_stats_entry(app, stats_cxt)) return -EINVAL; @@ -352,9 +350,7 @@ static int nfp_fl_obj_cmpfn(struct rhashtable_compare_arg *arg, const struct nfp_fl_flow_table_cmp_arg *cmp_arg = arg->key; const struct nfp_fl_payload *flow_entry = obj; - if ((!cmp_arg->netdev || flow_entry->ingress_dev == cmp_arg->netdev) && - (cmp_arg->host_ctx == NFP_FL_STATS_CTX_DONT_CARE || - flow_entry->meta.host_ctx_id == cmp_arg->host_ctx)) + if (flow_entry->ingress_dev == cmp_arg->netdev) return flow_entry->tc_flower_cookie != cmp_arg->cookie; return 1; diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index 29c95423ab64..545d94168874 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -56,11 +56,10 @@ BIT(FLOW_DISSECTOR_KEY_ENC_PORTS)) static int -nfp_flower_xmit_flow(struct net_device *netdev, - struct nfp_fl_payload *nfp_flow, u8 mtype) +nfp_flower_xmit_flow(struct nfp_app *app, struct nfp_fl_payload *nfp_flow, + u8 mtype) { u32 meta_len, key_len, mask_len, act_len, tot_len; - struct nfp_repr *priv = netdev_priv(netdev); struct sk_buff *skb; unsigned char *msg; @@ -78,7 +77,7 @@ nfp_flower_xmit_flow(struct net_device *netdev, nfp_flow->meta.mask_len >>= NFP_FL_LW_SIZ; nfp_flow->meta.act_len >>= NFP_FL_LW_SIZ; - skb = nfp_flower_cmsg_alloc(priv->app, tot_len, mtype, GFP_KERNEL); + skb = nfp_flower_cmsg_alloc(app, tot_len, mtype, GFP_KERNEL); if (!skb) return -ENOMEM; @@ -96,7 +95,7 @@ nfp_flower_xmit_flow(struct net_device *netdev, nfp_flow->meta.mask_len <<= NFP_FL_LW_SIZ; nfp_flow->meta.act_len <<= NFP_FL_LW_SIZ; - nfp_ctrl_tx(priv->app->ctrl, skb); + nfp_ctrl_tx(app->ctrl, skb); return 0; } @@ -129,9 +128,9 @@ nfp_flower_calc_opt_layer(struct flow_dissector_key_enc_opts *enc_opts, static int nfp_flower_calculate_key_layers(struct nfp_app *app, + struct net_device *netdev, struct nfp_fl_key_ls *ret_key_ls, struct tc_cls_flower_offload *flow, - bool egress, enum nfp_flower_tun_type *tun_type) { struct flow_dissector_key_basic *mask_basic = NULL; @@ -187,8 +186,6 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, skb_flow_dissector_target(flow->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL, flow->key); - if (!egress) - return -EOPNOTSUPP; if (mask_enc_ctl->addr_type != 0xffff || enc_ctl->addr_type != FLOW_DISSECTOR_KEY_IPV4_ADDRS) @@ -251,9 +248,10 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, default: return -EOPNOTSUPP; } - } else if (egress) { - /* Reject non tunnel matches offloaded to egress repr. */ - return -EOPNOTSUPP; + + /* Ensure the ingress netdev matches the expected tun type. */ + if (!nfp_fl_netdev_is_tunnel_type(netdev, *tun_type)) + return -EOPNOTSUPP; } if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_BASIC)) { @@ -374,7 +372,7 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, } static struct nfp_fl_payload * -nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer, bool egress) +nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer) { struct nfp_fl_payload *flow_pay; @@ -398,7 +396,6 @@ nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer, bool egress) flow_pay->nfp_tun_ipv4_addr = 0; flow_pay->meta.flags = 0; - flow_pay->ingress_offload = !egress; return flow_pay; @@ -416,7 +413,6 @@ err_free_flow: * @app: Pointer to the APP handle * @netdev: netdev structure. * @flow: TC flower classifier offload structure. - * @egress: NFP netdev is the egress. * * Adds a new flow to the repeated hash structure and action payload. * @@ -424,46 +420,35 @@ err_free_flow: */ static int nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev, - struct tc_cls_flower_offload *flow, bool egress) + struct tc_cls_flower_offload *flow) { enum nfp_flower_tun_type tun_type = NFP_FL_TUNNEL_NONE; - struct nfp_port *port = nfp_port_from_netdev(netdev); struct nfp_flower_priv *priv = app->priv; struct nfp_fl_payload *flow_pay; struct nfp_fl_key_ls *key_layer; - struct net_device *ingr_dev; + struct nfp_port *port = NULL; int err; - ingr_dev = egress ? NULL : netdev; - flow_pay = nfp_flower_search_fl_table(app, flow->cookie, ingr_dev, - NFP_FL_STATS_CTX_DONT_CARE); - if (flow_pay) { - /* Ignore as duplicate if it has been added by different cb. */ - if (flow_pay->ingress_offload && egress) - return 0; - else - return -EOPNOTSUPP; - } + if (nfp_netdev_is_nfp_repr(netdev)) + port = nfp_port_from_netdev(netdev); key_layer = kmalloc(sizeof(*key_layer), GFP_KERNEL); if (!key_layer) return -ENOMEM; - err = nfp_flower_calculate_key_layers(app, key_layer, flow, egress, + err = nfp_flower_calculate_key_layers(app, netdev, key_layer, flow, &tun_type); if (err) goto err_free_key_ls; - flow_pay = nfp_flower_allocate_new(key_layer, egress); + flow_pay = nfp_flower_allocate_new(key_layer); if (!flow_pay) { err = -ENOMEM; goto err_free_key_ls; } - flow_pay->ingress_dev = egress ? NULL : netdev; - - err = nfp_flower_compile_flow_match(flow, key_layer, netdev, flow_pay, - tun_type); + err = nfp_flower_compile_flow_match(app, flow, key_layer, netdev, + flow_pay, tun_type); if (err) goto err_destroy_flow; @@ -471,12 +456,11 @@ nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev, if (err) goto err_destroy_flow; - err = nfp_compile_flow_metadata(app, flow, flow_pay, - flow_pay->ingress_dev); + err = nfp_compile_flow_metadata(app, flow, flow_pay, netdev); if (err) goto err_destroy_flow; - err = nfp_flower_xmit_flow(netdev, flow_pay, + err = nfp_flower_xmit_flow(app, flow_pay, NFP_FLOWER_CMSG_TYPE_FLOW_ADD); if (err) goto err_destroy_flow; @@ -487,7 +471,8 @@ nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev, if (err) goto err_destroy_flow; - port->tc_offload_cnt++; + if (port) + port->tc_offload_cnt++; /* Deallocate flow payload when flower rule has been destroyed. */ kfree(key_layer); @@ -509,7 +494,6 @@ err_free_key_ls: * @app: Pointer to the APP handle * @netdev: netdev structure. * @flow: TC flower classifier offload structure - * @egress: Netdev is the egress dev. * * Removes a flow from the repeated hash structure and clears the * action payload. @@ -518,19 +502,19 @@ err_free_key_ls: */ static int nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev, - struct tc_cls_flower_offload *flow, bool egress) + struct tc_cls_flower_offload *flow) { - struct nfp_port *port = nfp_port_from_netdev(netdev); struct nfp_flower_priv *priv = app->priv; struct nfp_fl_payload *nfp_flow; - struct net_device *ingr_dev; + struct nfp_port *port = NULL; int err; - ingr_dev = egress ? NULL : netdev; - nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, ingr_dev, - NFP_FL_STATS_CTX_DONT_CARE); + if (nfp_netdev_is_nfp_repr(netdev)) + port = nfp_port_from_netdev(netdev); + + nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (!nfp_flow) - return egress ? 0 : -ENOENT; + return -ENOENT; err = nfp_modify_flow_metadata(app, nfp_flow); if (err) @@ -539,13 +523,14 @@ nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev, if (nfp_flow->nfp_tun_ipv4_addr) nfp_tunnel_del_ipv4_off(app, nfp_flow->nfp_tun_ipv4_addr); - err = nfp_flower_xmit_flow(netdev, nfp_flow, + err = nfp_flower_xmit_flow(app, nfp_flow, NFP_FLOWER_CMSG_TYPE_FLOW_DEL); if (err) goto err_free_flow; err_free_flow: - port->tc_offload_cnt--; + if (port) + port->tc_offload_cnt--; kfree(nfp_flow->action_data); kfree(nfp_flow->mask_data); kfree(nfp_flow->unmasked_data); @@ -561,7 +546,6 @@ err_free_flow: * @app: Pointer to the APP handle * @netdev: Netdev structure. * @flow: TC flower classifier offload structure - * @egress: Netdev is the egress dev. * * Populates a flow statistics structure which which corresponds to a * specific flow. @@ -570,22 +554,16 @@ err_free_flow: */ static int nfp_flower_get_stats(struct nfp_app *app, struct net_device *netdev, - struct tc_cls_flower_offload *flow, bool egress) + struct tc_cls_flower_offload *flow) { struct nfp_flower_priv *priv = app->priv; struct nfp_fl_payload *nfp_flow; - struct net_device *ingr_dev; u32 ctx_id; - ingr_dev = egress ? NULL : netdev; - nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, ingr_dev, - NFP_FL_STATS_CTX_DONT_CARE); + nfp_flow = nfp_flower_search_fl_table(app, flow->cookie, netdev); if (!nfp_flow) return -EINVAL; - if (nfp_flow->ingress_offload && egress) - return 0; - ctx_id = be32_to_cpu(nfp_flow->meta.host_ctx_id); spin_lock_bh(&priv->stats_lock); @@ -602,35 +580,18 @@ nfp_flower_get_stats(struct nfp_app *app, struct net_device *netdev, static int nfp_flower_repr_offload(struct nfp_app *app, struct net_device *netdev, - struct tc_cls_flower_offload *flower, bool egress) + struct tc_cls_flower_offload *flower) { if (!eth_proto_is_802_3(flower->common.protocol)) return -EOPNOTSUPP; switch (flower->command) { case TC_CLSFLOWER_REPLACE: - return nfp_flower_add_offload(app, netdev, flower, egress); + return nfp_flower_add_offload(app, netdev, flower); case TC_CLSFLOWER_DESTROY: - return nfp_flower_del_offload(app, netdev, flower, egress); + return nfp_flower_del_offload(app, netdev, flower); case TC_CLSFLOWER_STATS: - return nfp_flower_get_stats(app, netdev, flower, egress); - default: - return -EOPNOTSUPP; - } -} - -int nfp_flower_setup_tc_egress_cb(enum tc_setup_type type, void *type_data, - void *cb_priv) -{ - struct nfp_repr *repr = cb_priv; - - if (!tc_cls_can_offload_and_chain0(repr->netdev, type_data)) - return -EOPNOTSUPP; - - switch (type) { - case TC_SETUP_CLSFLOWER: - return nfp_flower_repr_offload(repr->app, repr->netdev, - type_data, true); + return nfp_flower_get_stats(app, netdev, flower); default: return -EOPNOTSUPP; } @@ -647,7 +608,7 @@ static int nfp_flower_setup_tc_block_cb(enum tc_setup_type type, switch (type) { case TC_SETUP_CLSFLOWER: return nfp_flower_repr_offload(repr->app, repr->netdev, - type_data, false); + type_data); default: return -EOPNOTSUPP; } @@ -686,3 +647,129 @@ int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev, return -EOPNOTSUPP; } } + +struct nfp_flower_indr_block_cb_priv { + struct net_device *netdev; + struct nfp_app *app; + struct list_head list; +}; + +static struct nfp_flower_indr_block_cb_priv * +nfp_flower_indr_block_cb_priv_lookup(struct nfp_app *app, + struct net_device *netdev) +{ + struct nfp_flower_indr_block_cb_priv *cb_priv; + struct nfp_flower_priv *priv = app->priv; + + /* All callback list access should be protected by RTNL. */ + ASSERT_RTNL(); + + list_for_each_entry(cb_priv, &priv->indr_block_cb_priv, list) + if (cb_priv->netdev == netdev) + return cb_priv; + + return NULL; +} + +static int nfp_flower_setup_indr_block_cb(enum tc_setup_type type, + void *type_data, void *cb_priv) +{ + struct nfp_flower_indr_block_cb_priv *priv = cb_priv; + struct tc_cls_flower_offload *flower = type_data; + + if (flower->common.chain_index) + return -EOPNOTSUPP; + + switch (type) { + case TC_SETUP_CLSFLOWER: + return nfp_flower_repr_offload(priv->app, priv->netdev, + type_data); + default: + return -EOPNOTSUPP; + } +} + +static int +nfp_flower_setup_indr_tc_block(struct net_device *netdev, struct nfp_app *app, + struct tc_block_offload *f) +{ + struct nfp_flower_indr_block_cb_priv *cb_priv; + struct nfp_flower_priv *priv = app->priv; + int err; + + if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) + return -EOPNOTSUPP; + + switch (f->command) { + case TC_BLOCK_BIND: + cb_priv = kmalloc(sizeof(*cb_priv), GFP_KERNEL); + if (!cb_priv) + return -ENOMEM; + + cb_priv->netdev = netdev; + cb_priv->app = app; + list_add(&cb_priv->list, &priv->indr_block_cb_priv); + + err = tcf_block_cb_register(f->block, + nfp_flower_setup_indr_block_cb, + netdev, cb_priv, f->extack); + if (err) { + list_del(&cb_priv->list); + kfree(cb_priv); + } + + return err; + case TC_BLOCK_UNBIND: + tcf_block_cb_unregister(f->block, + nfp_flower_setup_indr_block_cb, netdev); + cb_priv = nfp_flower_indr_block_cb_priv_lookup(app, netdev); + if (cb_priv) { + list_del(&cb_priv->list); + kfree(cb_priv); + } + + return 0; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int +nfp_flower_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv, + enum tc_setup_type type, void *type_data) +{ + switch (type) { + case TC_SETUP_BLOCK: + return nfp_flower_setup_indr_tc_block(netdev, cb_priv, + type_data); + default: + return -EOPNOTSUPP; + } +} + +int nfp_flower_reg_indir_block_handler(struct nfp_app *app, + struct net_device *netdev, + unsigned long event) +{ + int err; + + if (!nfp_fl_is_netdev_to_offload(netdev)) + return NOTIFY_OK; + + if (event == NETDEV_REGISTER) { + err = __tc_indr_block_cb_register(netdev, app, + nfp_flower_indr_setup_tc_cb, + netdev); + if (err) + nfp_flower_cmsg_warn(app, + "Indirect block reg failed - %s\n", + netdev->name); + } else if (event == NETDEV_UNREGISTER) { + __tc_indr_block_cb_unregister(netdev, + nfp_flower_indr_setup_tc_cb, + netdev); + } + + return NOTIFY_OK; +} diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c index 5d641d7dabff..2d9f26a725c2 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c +++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c @@ -4,7 +4,6 @@ #include <linux/etherdevice.h> #include <linux/inetdevice.h> #include <net/netevent.h> -#include <net/vxlan.h> #include <linux/idr.h> #include <net/dst_metadata.h> #include <net/arp.h> @@ -182,20 +181,6 @@ void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb) } } -static bool nfp_tun_is_netdev_to_offload(struct net_device *netdev) -{ - if (!netdev->rtnl_link_ops) - return false; - if (!strcmp(netdev->rtnl_link_ops->kind, "openvswitch")) - return true; - if (netif_is_vxlan(netdev)) - return true; - if (netif_is_geneve(netdev)) - return true; - - return false; -} - static int nfp_flower_xmit_tun_conf(struct nfp_app *app, u8 mtype, u16 plen, void *pdata, gfp_t flag) @@ -617,7 +602,7 @@ static void nfp_tun_add_to_mac_offload_list(struct net_device *netdev, if (nfp_netdev_is_nfp_repr(netdev)) port = nfp_repr_get_port_id(netdev); - else if (!nfp_tun_is_netdev_to_offload(netdev)) + else if (!nfp_fl_is_netdev_to_offload(netdev)) return; entry = kmalloc(sizeof(*entry), GFP_KERNEL); @@ -660,7 +645,7 @@ int nfp_tunnel_mac_event_handler(struct nfp_app *app, { if (event == NETDEV_DOWN || event == NETDEV_UNREGISTER) { /* If non-nfp netdev then free its offload index. */ - if (nfp_tun_is_netdev_to_offload(netdev)) + if (nfp_fl_is_netdev_to_offload(netdev)) nfp_tun_del_mac_idx(app, netdev->ifindex); } else if (event == NETDEV_UP || event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER) { diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 00f71644fbcd..f6c0cd29dea4 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -81,6 +81,14 @@ void __tcf_block_cb_unregister(struct tcf_block *block, struct tcf_block_cb *block_cb); void tcf_block_cb_unregister(struct tcf_block *block, tc_setup_cb_t *cb, void *cb_ident); +int __tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident); +int tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident); +void __tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident); +void tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident); int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res, bool compat_mode); @@ -183,6 +191,32 @@ void tcf_block_cb_unregister(struct tcf_block *block, { } +static inline +int __tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + return 0; +} + +static inline +int tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + return 0; +} + +static inline +void __tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ +} + +static inline +void tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ +} + static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res, bool compat_mode) { diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index a8dd1fc141b6..9481f2c142e2 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -24,6 +24,9 @@ struct bpf_flow_keys; typedef int tc_setup_cb_t(enum tc_setup_type type, void *type_data, void *cb_priv); +typedef int tc_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv, + enum tc_setup_type type, void *type_data); + struct qdisc_rate_table { struct tc_ratespec rate; u32 data[256]; diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index f427a1e00e7e..d92f44ac4c39 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -25,6 +25,7 @@ #include <linux/kmod.h> #include <linux/slab.h> #include <linux/idr.h> +#include <linux/rhashtable.h> #include <net/net_namespace.h> #include <net/sock.h> #include <net/netlink.h> @@ -365,6 +366,245 @@ static void tcf_chain_flush(struct tcf_chain *chain) } } +static struct tcf_block *tc_dev_ingress_block(struct net_device *dev) +{ + const struct Qdisc_class_ops *cops; + struct Qdisc *qdisc; + + if (!dev_ingress_queue(dev)) + return NULL; + + qdisc = dev_ingress_queue(dev)->qdisc_sleeping; + if (!qdisc) + return NULL; + + cops = qdisc->ops->cl_ops; + if (!cops) + return NULL; + + if (!cops->tcf_block) + return NULL; + + return cops->tcf_block(qdisc, TC_H_MIN_INGRESS, NULL); +} + +static struct rhashtable indr_setup_block_ht; + +struct tc_indr_block_dev { + struct rhash_head ht_node; + struct net_device *dev; + unsigned int refcnt; + struct list_head cb_list; + struct tcf_block *block; +}; + +struct tc_indr_block_cb { + struct list_head list; + void *cb_priv; + tc_indr_block_bind_cb_t *cb; + void *cb_ident; +}; + +static const struct rhashtable_params tc_indr_setup_block_ht_params = { + .key_offset = offsetof(struct tc_indr_block_dev, dev), + .head_offset = offsetof(struct tc_indr_block_dev, ht_node), + .key_len = sizeof(struct net_device *), +}; + +static struct tc_indr_block_dev * +tc_indr_block_dev_lookup(struct net_device *dev) +{ + return rhashtable_lookup_fast(&indr_setup_block_ht, &dev, + tc_indr_setup_block_ht_params); +} + +static struct tc_indr_block_dev *tc_indr_block_dev_get(struct net_device *dev) +{ + struct tc_indr_block_dev *indr_dev; + + indr_dev = tc_indr_block_dev_lookup(dev); + if (indr_dev) + goto inc_ref; + + indr_dev = kzalloc(sizeof(*indr_dev), GFP_KERNEL); + if (!indr_dev) + return NULL; + + INIT_LIST_HEAD(&indr_dev->cb_list); + indr_dev->dev = dev; + indr_dev->block = tc_dev_ingress_block(dev); + if (rhashtable_insert_fast(&indr_setup_block_ht, &indr_dev->ht_node, + tc_indr_setup_block_ht_params)) { + kfree(indr_dev); + return NULL; + } + +inc_ref: + indr_dev->refcnt++; + return indr_dev; +} + +static void tc_indr_block_dev_put(struct tc_indr_block_dev *indr_dev) +{ + if (--indr_dev->refcnt) + return; + + rhashtable_remove_fast(&indr_setup_block_ht, &indr_dev->ht_node, + tc_indr_setup_block_ht_params); + kfree(indr_dev); +} + +static struct tc_indr_block_cb * +tc_indr_block_cb_lookup(struct tc_indr_block_dev *indr_dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + struct tc_indr_block_cb *indr_block_cb; + + list_for_each_entry(indr_block_cb, &indr_dev->cb_list, list) + if (indr_block_cb->cb == cb && + indr_block_cb->cb_ident == cb_ident) + return indr_block_cb; + return NULL; +} + +static struct tc_indr_block_cb * +tc_indr_block_cb_add(struct tc_indr_block_dev *indr_dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + struct tc_indr_block_cb *indr_block_cb; + + indr_block_cb = tc_indr_block_cb_lookup(indr_dev, cb, cb_ident); + if (indr_block_cb) + return ERR_PTR(-EEXIST); + + indr_block_cb = kzalloc(sizeof(*indr_block_cb), GFP_KERNEL); + if (!indr_block_cb) + return ERR_PTR(-ENOMEM); + + indr_block_cb->cb_priv = cb_priv; + indr_block_cb->cb = cb; + indr_block_cb->cb_ident = cb_ident; + list_add(&indr_block_cb->list, &indr_dev->cb_list); + + return indr_block_cb; +} + +static void tc_indr_block_cb_del(struct tc_indr_block_cb *indr_block_cb) +{ + list_del(&indr_block_cb->list); + kfree(indr_block_cb); +} + +static void tc_indr_block_ing_cmd(struct tc_indr_block_dev *indr_dev, + struct tc_indr_block_cb *indr_block_cb, + enum tc_block_command command) +{ + struct tc_block_offload bo = { + .command = command, + .binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS, + .block = indr_dev->block, + }; + + if (!indr_dev->block) + return; + + indr_block_cb->cb(indr_dev->dev, indr_block_cb->cb_priv, TC_SETUP_BLOCK, + &bo); +} + +int __tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + struct tc_indr_block_cb *indr_block_cb; + struct tc_indr_block_dev *indr_dev; + int err; + + indr_dev = tc_indr_block_dev_get(dev); + if (!indr_dev) + return -ENOMEM; + + indr_block_cb = tc_indr_block_cb_add(indr_dev, cb_priv, cb, cb_ident); + err = PTR_ERR_OR_ZERO(indr_block_cb); + if (err) + goto err_dev_put; + + tc_indr_block_ing_cmd(indr_dev, indr_block_cb, TC_BLOCK_BIND); + return 0; + +err_dev_put: + tc_indr_block_dev_put(indr_dev); + return err; +} +EXPORT_SYMBOL_GPL(__tc_indr_block_cb_register); + +int tc_indr_block_cb_register(struct net_device *dev, void *cb_priv, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + int err; + + rtnl_lock(); + err = __tc_indr_block_cb_register(dev, cb_priv, cb, cb_ident); + rtnl_unlock(); + + return err; +} +EXPORT_SYMBOL_GPL(tc_indr_block_cb_register); + +void __tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + struct tc_indr_block_cb *indr_block_cb; + struct tc_indr_block_dev *indr_dev; + + indr_dev = tc_indr_block_dev_lookup(dev); + if (!indr_dev) + return; + + indr_block_cb = tc_indr_block_cb_lookup(indr_dev, cb, cb_ident); + if (!indr_block_cb) + return; + + /* Send unbind message if required to free any block cbs. */ + tc_indr_block_ing_cmd(indr_dev, indr_block_cb, TC_BLOCK_UNBIND); + tc_indr_block_cb_del(indr_block_cb); + tc_indr_block_dev_put(indr_dev); +} +EXPORT_SYMBOL_GPL(__tc_indr_block_cb_unregister); + +void tc_indr_block_cb_unregister(struct net_device *dev, + tc_indr_block_bind_cb_t *cb, void *cb_ident) +{ + rtnl_lock(); + __tc_indr_block_cb_unregister(dev, cb, cb_ident); + rtnl_unlock(); +} +EXPORT_SYMBOL_GPL(tc_indr_block_cb_unregister); + +static void tc_indr_block_call(struct tcf_block *block, struct net_device *dev, + struct tcf_block_ext_info *ei, + enum tc_block_command command, + struct netlink_ext_ack *extack) +{ + struct tc_indr_block_cb *indr_block_cb; + struct tc_indr_block_dev *indr_dev; + struct tc_block_offload bo = { + .command = command, + .binder_type = ei->binder_type, + .block = block, + .extack = extack, + }; + + indr_dev = tc_indr_block_dev_lookup(dev); + if (!indr_dev) + return; + + indr_dev->block = command == TC_BLOCK_BIND ? block : NULL; + + list_for_each_entry(indr_block_cb, &indr_dev->cb_list, list) + indr_block_cb->cb(dev, indr_block_cb->cb_priv, TC_SETUP_BLOCK, + &bo); +} + static bool tcf_block_offload_in_use(struct tcf_block *block) { return block->offloadcnt; @@ -406,12 +646,17 @@ static int tcf_block_offload_bind(struct tcf_block *block, struct Qdisc *q, err = tcf_block_offload_cmd(block, dev, ei, TC_BLOCK_BIND, extack); if (err == -EOPNOTSUPP) goto no_offload_dev_inc; - return err; + if (err) + return err; + + tc_indr_block_call(block, dev, ei, TC_BLOCK_BIND, extack); + return 0; no_offload_dev_inc: if (tcf_block_offload_in_use(block)) return -EOPNOTSUPP; block->nooffloaddevcnt++; + tc_indr_block_call(block, dev, ei, TC_BLOCK_BIND, extack); return 0; } @@ -421,6 +666,8 @@ static void tcf_block_offload_unbind(struct tcf_block *block, struct Qdisc *q, struct net_device *dev = q->dev_queue->dev; int err; + tc_indr_block_call(block, dev, ei, TC_BLOCK_UNBIND, NULL); + if (!dev->netdev_ops->ndo_setup_tc) goto no_offload_dev_dec; err = tcf_block_offload_cmd(block, dev, ei, TC_BLOCK_UNBIND, NULL); @@ -2355,6 +2602,11 @@ static int __init tc_filter_init(void) if (err) goto err_register_pernet_subsys; + err = rhashtable_init(&indr_setup_block_ht, + &tc_indr_setup_block_ht_params); + if (err) + goto err_rhash_setup_block_ht; + rtnl_register(PF_UNSPEC, RTM_NEWTFILTER, tc_new_tfilter, NULL, 0); rtnl_register(PF_UNSPEC, RTM_DELTFILTER, tc_del_tfilter, NULL, 0); rtnl_register(PF_UNSPEC, RTM_GETTFILTER, tc_get_tfilter, @@ -2366,6 +2618,8 @@ static int __init tc_filter_init(void) return 0; +err_rhash_setup_block_ht: + unregister_pernet_subsys(&tcf_net_ops); err_register_pernet_subsys: destroy_workqueue(tc_filter_wq); return err; |