| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yevgeny Petrilin | 6258 | 33.70% | 34 | 11.93% |
| Amir Vadai | 2394 | 12.89% | 17 | 5.96% |
| Yan Burman | 1529 | 8.23% | 11 | 3.86% |
| Eugenia Emantayev | 914 | 4.92% | 15 | 5.26% |
| Tariq Toukan | 759 | 4.09% | 9 | 3.16% |
| Hadar Hen Zion | 723 | 3.89% | 10 | 3.51% |
| Moni Shoua | 697 | 3.75% | 2 | 0.70% |
| Or Gerlitz | 543 | 2.92% | 13 | 4.56% |
| Ido Shamay | 520 | 2.80% | 12 | 4.21% |
| Eran Ben Elisha | 352 | 1.90% | 11 | 3.86% |
| Brenden Blanco | 330 | 1.78% | 4 | 1.40% |
| Matan Barak | 324 | 1.74% | 5 | 1.75% |
| Joe Damato | 317 | 1.71% | 2 | 0.70% |
| Rony Efraim | 256 | 1.38% | 5 | 1.75% |
| Saeed Mahameed | 253 | 1.36% | 3 | 1.05% |
| Moshe Shemesh | 191 | 1.03% | 7 | 2.46% |
| Eyal Perry | 164 | 0.88% | 3 | 1.05% |
| Eric Dumazet | 157 | 0.85% | 14 | 4.91% |
| Muhammad Mahajna | 151 | 0.81% | 2 | 0.70% |
| Yuval Atias | 122 | 0.66% | 1 | 0.35% |
| Martin KaFai Lau | 119 | 0.64% | 3 | 1.05% |
| Stephen Hemminger | 118 | 0.64% | 3 | 1.05% |
| Jakub Kiciński | 105 | 0.57% | 6 | 2.11% |
| Inbar Karmy | 104 | 0.56% | 3 | 1.05% |
| Alexander Guller | 94 | 0.51% | 3 | 1.05% |
| Jiri Pirko | 79 | 0.43% | 11 | 3.86% |
| Alexander Duyck | 77 | 0.41% | 4 | 1.40% |
| Lama Kayal | 75 | 0.40% | 1 | 0.35% |
| Aviad Yehezkel | 74 | 0.40% | 1 | 0.35% |
| Rana Shahout | 74 | 0.40% | 1 | 0.35% |
| Ben Hutchings | 62 | 0.33% | 2 | 0.70% |
| Shani Michaelli | 59 | 0.32% | 4 | 1.40% |
| Noa Osherovich | 59 | 0.32% | 1 | 0.35% |
| Jack Morgenstein | 40 | 0.22% | 2 | 0.70% |
| Eli Cohen | 34 | 0.18% | 2 | 0.70% |
| Shawn Bohrer | 30 | 0.16% | 2 | 0.70% |
| Michał Mirosław | 26 | 0.14% | 1 | 0.35% |
| Stanislav Fomichev | 25 | 0.13% | 1 | 0.35% |
| John Fastabend | 24 | 0.13% | 2 | 0.70% |
| Shaker Daibes | 24 | 0.13% | 1 | 0.35% |
| Joe Stringer | 23 | 0.12% | 2 | 0.70% |
| Erez Shitrit | 21 | 0.11% | 1 | 0.35% |
| Michael S. Tsirkin | 18 | 0.10% | 2 | 0.70% |
| Kamal Heib | 18 | 0.10% | 1 | 0.35% |
| Roland Dreier | 18 | 0.10% | 1 | 0.35% |
| Daniel Borkmann | 17 | 0.09% | 1 | 0.35% |
| Zhou Qingyang | 16 | 0.09% | 1 | 0.35% |
| Patrick McHardy | 15 | 0.08% | 2 | 0.70% |
| Davide Caratti | 15 | 0.08% | 1 | 0.35% |
| Jesse Gross | 14 | 0.08% | 1 | 0.35% |
| Jarod Wilson | 13 | 0.07% | 1 | 0.35% |
| Kevin Yang | 12 | 0.06% | 1 | 0.35% |
| Herbert Xu | 12 | 0.06% | 1 | 0.35% |
| Kees Cook | 12 | 0.06% | 1 | 0.35% |
| Amritha Nambiar | 9 | 0.05% | 1 | 0.35% |
| Marek Majtyka | 8 | 0.04% | 1 | 0.35% |
| Sagi Grimberg | 8 | 0.04% | 1 | 0.35% |
| Joe Perches | 7 | 0.04% | 3 | 1.05% |
| Hannes Frederic Sowa | 6 | 0.03% | 1 | 0.35% |
| Rusty Russell | 5 | 0.03% | 1 | 0.35% |
| Kleber Sacilotto de Souza | 4 | 0.02% | 1 | 0.35% |
| Toshiaki Makita | 4 | 0.02% | 1 | 0.35% |
| Thadeu Lima de Souza Cascardo | 3 | 0.02% | 1 | 0.35% |
| Marcel Apfelbaum | 3 | 0.02% | 1 | 0.35% |
| Linus Torvalds (pre-git) | 3 | 0.02% | 1 | 0.35% |
| Miroslav Lichvar | 3 | 0.02% | 1 | 0.35% |
| Jesper Dangaard Brouer | 3 | 0.02% | 2 | 0.70% |
| Wilfried Klaebe | 3 | 0.02% | 1 | 0.35% |
| Petr Pavlu | 3 | 0.02% | 2 | 0.70% |
| Aya Levin | 3 | 0.02% | 1 | 0.35% |
| Ding Tianhong | 2 | 0.01% | 1 | 0.35% |
| Simon Horman | 2 | 0.01% | 1 | 0.35% |
| Colin Ian King | 2 | 0.01% | 2 | 0.70% |
| Frans Pop | 1 | 0.01% | 1 | 0.35% |
| Fengguang Wu | 1 | 0.01% | 1 | 0.35% |
| Christophe Jaillet | 1 | 0.01% | 1 | 0.35% |
| Nogah Frankel | 1 | 0.01% | 1 | 0.35% |
| Arnd Bergmann | 1 | 0.01% | 1 | 0.35% |
| Tejun Heo | 1 | 0.01% | 1 | 0.35% |
| Benjamin Poirier | 1 | 0.01% | 1 | 0.35% |
| Lucas De Marchi | 1 | 0.01% | 1 | 0.35% |
| Dan Carpenter | 1 | 0.01% | 1 | 0.35% |
| Jean Delvare | 1 | 0.01% | 1 | 0.35% |
| Total | 18571 | 285 |
/* * Copyright (c) 2007 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ #include <linux/bpf.h> #include <linux/etherdevice.h> #include <linux/filter.h> #include <linux/tcp.h> #include <linux/if_vlan.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/hash.h> #include <net/ip.h> #include <net/vxlan.h> #include <net/devlink.h> #include <net/rps.h> #include <net/netdev_queues.h> #include <linux/mlx4/driver.h> #include <linux/mlx4/device.h> #include <linux/mlx4/cmd.h> #include <linux/mlx4/cq.h> #include "mlx4_en.h" #include "en_port.h" #define MLX4_EN_MAX_XDP_MTU ((int)(PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) - \ XDP_PACKET_HEADROOM - \ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))) int mlx4_en_setup_tc(struct net_device *dev, u8 up) { struct mlx4_en_priv *priv = netdev_priv(dev); int i; unsigned int offset = 0; if (up && up != MLX4_EN_NUM_UP_HIGH) return -EINVAL; netdev_set_num_tc(dev, up); netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); /* Partition Tx queues evenly amongst UP's */ for (i = 0; i < up; i++) { netdev_set_tc_queue(dev, i, priv->num_tx_rings_p_up, offset); offset += priv->num_tx_rings_p_up; } #ifdef CONFIG_MLX4_EN_DCB if (!mlx4_is_slave(priv->mdev->dev)) { if (up) { if (priv->dcbx_cap) priv->flags |= MLX4_EN_FLAG_DCB_ENABLED; } else { priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED; priv->cee_config.pfc_state = false; } } #endif /* CONFIG_MLX4_EN_DCB */ return 0; } int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_port_profile new_prof; struct mlx4_en_priv *tmp; int total_count; int port_up = 0; int err = 0; tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return -ENOMEM; mutex_lock(&mdev->state_lock); memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); new_prof.num_up = (tc == 0) ? MLX4_EN_NUM_UP_LOW : MLX4_EN_NUM_UP_HIGH; new_prof.tx_ring_num[TX] = new_prof.num_tx_rings_p_up * new_prof.num_up; total_count = new_prof.tx_ring_num[TX] + new_prof.tx_ring_num[TX_XDP]; if (total_count > MAX_TX_RINGS) { err = -EINVAL; en_err(priv, "Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n", total_count, MAX_TX_RINGS); goto out; } err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); if (err) goto out; if (priv->port_up) { port_up = 1; mlx4_en_stop_port(dev, 1); } mlx4_en_safe_replace_resources(priv, tmp); if (port_up) { err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed starting port for setup TC\n"); goto out; } } err = mlx4_en_setup_tc(dev, tc); out: mutex_unlock(&mdev->state_lock); kfree(tmp); return err; } static int __mlx4_en_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data) { struct tc_mqprio_qopt *mqprio = type_data; if (type != TC_SETUP_QDISC_MQPRIO) return -EOPNOTSUPP; if (mqprio->num_tc && mqprio->num_tc != MLX4_EN_NUM_UP_HIGH) return -EINVAL; mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; return mlx4_en_alloc_tx_queue_per_tc(dev, mqprio->num_tc); } #ifdef CONFIG_RFS_ACCEL struct mlx4_en_filter { struct list_head next; struct work_struct work; u8 ip_proto; __be32 src_ip; __be32 dst_ip; __be16 src_port; __be16 dst_port; int rxq_index; struct mlx4_en_priv *priv; u32 flow_id; /* RFS infrastructure id */ int id; /* mlx4_en driver id */ u64 reg_id; /* Flow steering API id */ u8 activated; /* Used to prevent expiry before filter * is attached */ struct hlist_node filter_chain; }; static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv); static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto) { switch (ip_proto) { case IPPROTO_UDP: return MLX4_NET_TRANS_RULE_ID_UDP; case IPPROTO_TCP: return MLX4_NET_TRANS_RULE_ID_TCP; default: return MLX4_NET_TRANS_RULE_NUM; } }; /* Must not acquire state_lock, as its corresponding work_sync * is done under it. */ static void mlx4_en_filter_work(struct work_struct *work) { struct mlx4_en_filter *filter = container_of(work, struct mlx4_en_filter, work); struct mlx4_en_priv *priv = filter->priv; struct mlx4_spec_list spec_tcp_udp = { .id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto), { .tcp_udp = { .dst_port = filter->dst_port, .dst_port_msk = (__force __be16)-1, .src_port = filter->src_port, .src_port_msk = (__force __be16)-1, }, }, }; struct mlx4_spec_list spec_ip = { .id = MLX4_NET_TRANS_RULE_ID_IPV4, { .ipv4 = { .dst_ip = filter->dst_ip, .dst_ip_msk = (__force __be32)-1, .src_ip = filter->src_ip, .src_ip_msk = (__force __be32)-1, }, }, }; struct mlx4_spec_list spec_eth = { .id = MLX4_NET_TRANS_RULE_ID_ETH, }; struct mlx4_net_trans_rule rule = { .list = LIST_HEAD_INIT(rule.list), .queue_mode = MLX4_NET_TRANS_Q_LIFO, .exclusive = 1, .allow_loopback = 1, .promisc_mode = MLX4_FS_REGULAR, .port = priv->port, .priority = MLX4_DOMAIN_RFS, }; int rc; __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); if (spec_tcp_udp.id >= MLX4_NET_TRANS_RULE_NUM) { en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n", filter->ip_proto); goto ignore; } list_add_tail(&spec_eth.list, &rule.list); list_add_tail(&spec_ip.list, &rule.list); list_add_tail(&spec_tcp_udp.list, &rule.list); rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn; memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN); memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); filter->activated = 0; if (filter->reg_id) { rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id); if (rc && rc != -ENOENT) en_err(priv, "Error detaching flow. rc = %d\n", rc); } rc = mlx4_flow_attach(priv->mdev->dev, &rule, &filter->reg_id); if (rc) en_err(priv, "Error attaching flow. err = %d\n", rc); ignore: mlx4_en_filter_rfs_expire(priv); filter->activated = 1; } static inline struct hlist_head * filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip, __be16 src_port, __be16 dst_port) { unsigned long l; int bucket_idx; l = (__force unsigned long)src_port | ((__force unsigned long)dst_port << 2); l ^= (__force unsigned long)(src_ip ^ dst_ip); bucket_idx = hash_long(l, MLX4_EN_FILTER_HASH_SHIFT); return &priv->filter_hash[bucket_idx]; } static struct mlx4_en_filter * mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip, __be32 dst_ip, u8 ip_proto, __be16 src_port, __be16 dst_port, u32 flow_id) { struct mlx4_en_filter *filter; filter = kzalloc(sizeof(struct mlx4_en_filter), GFP_ATOMIC); if (!filter) return NULL; filter->priv = priv; filter->rxq_index = rxq_index; INIT_WORK(&filter->work, mlx4_en_filter_work); filter->src_ip = src_ip; filter->dst_ip = dst_ip; filter->ip_proto = ip_proto; filter->src_port = src_port; filter->dst_port = dst_port; filter->flow_id = flow_id; filter->id = priv->last_filter_id++ % RPS_NO_FILTER; list_add_tail(&filter->next, &priv->filters); hlist_add_head(&filter->filter_chain, filter_hash_bucket(priv, src_ip, dst_ip, src_port, dst_port)); return filter; } static void mlx4_en_filter_free(struct mlx4_en_filter *filter) { struct mlx4_en_priv *priv = filter->priv; int rc; list_del(&filter->next); rc = mlx4_flow_detach(priv->mdev->dev, filter->reg_id); if (rc && rc != -ENOENT) en_err(priv, "Error detaching flow. rc = %d\n", rc); kfree(filter); } static inline struct mlx4_en_filter * mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip, u8 ip_proto, __be16 src_port, __be16 dst_port) { struct mlx4_en_filter *filter; struct mlx4_en_filter *ret = NULL; hlist_for_each_entry(filter, filter_hash_bucket(priv, src_ip, dst_ip, src_port, dst_port), filter_chain) { if (filter->src_ip == src_ip && filter->dst_ip == dst_ip && filter->ip_proto == ip_proto && filter->src_port == src_port && filter->dst_port == dst_port) { ret = filter; break; } } return ret; } static int mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb, u16 rxq_index, u32 flow_id) { struct mlx4_en_priv *priv = netdev_priv(net_dev); struct mlx4_en_filter *filter; const struct iphdr *ip; const __be16 *ports; u8 ip_proto; __be32 src_ip; __be32 dst_ip; __be16 src_port; __be16 dst_port; int nhoff = skb_network_offset(skb); int ret = 0; if (skb->encapsulation) return -EPROTONOSUPPORT; if (skb->protocol != htons(ETH_P_IP)) return -EPROTONOSUPPORT; ip = (const struct iphdr *)(skb->data + nhoff); if (ip_is_fragment(ip)) return -EPROTONOSUPPORT; if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP)) return -EPROTONOSUPPORT; ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl); ip_proto = ip->protocol; src_ip = ip->saddr; dst_ip = ip->daddr; src_port = ports[0]; dst_port = ports[1]; spin_lock_bh(&priv->filters_lock); filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto, src_port, dst_port); if (filter) { if (filter->rxq_index == rxq_index) goto out; filter->rxq_index = rxq_index; } else { filter = mlx4_en_filter_alloc(priv, rxq_index, src_ip, dst_ip, ip_proto, src_port, dst_port, flow_id); if (!filter) { ret = -ENOMEM; goto err; } } queue_work(priv->mdev->workqueue, &filter->work); out: ret = filter->id; err: spin_unlock_bh(&priv->filters_lock); return ret; } void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv) { struct mlx4_en_filter *filter, *tmp; LIST_HEAD(del_list); spin_lock_bh(&priv->filters_lock); list_for_each_entry_safe(filter, tmp, &priv->filters, next) { list_move(&filter->next, &del_list); hlist_del(&filter->filter_chain); } spin_unlock_bh(&priv->filters_lock); list_for_each_entry_safe(filter, tmp, &del_list, next) { cancel_work_sync(&filter->work); mlx4_en_filter_free(filter); } } static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv) { struct mlx4_en_filter *filter = NULL, *tmp, *last_filter = NULL; LIST_HEAD(del_list); int i = 0; spin_lock_bh(&priv->filters_lock); list_for_each_entry_safe(filter, tmp, &priv->filters, next) { if (i > MLX4_EN_FILTER_EXPIRY_QUOTA) break; if (filter->activated && !work_pending(&filter->work) && rps_may_expire_flow(priv->dev, filter->rxq_index, filter->flow_id, filter->id)) { list_move(&filter->next, &del_list); hlist_del(&filter->filter_chain); } else last_filter = filter; i++; } if (last_filter && (&last_filter->next != priv->filters.next)) list_move(&priv->filters, &last_filter->next); spin_unlock_bh(&priv->filters_lock); list_for_each_entry_safe(filter, tmp, &del_list, next) mlx4_en_filter_free(filter); } #endif static int mlx4_en_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err; int idx; en_dbg(HW, priv, "adding VLAN:%d\n", vid); set_bit(vid, priv->active_vlans); /* Add VID to port VLAN filter */ mutex_lock(&mdev->state_lock); if (mdev->device_up && priv->port_up) { err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); if (err) { en_err(priv, "Failed configuring VLAN filter\n"); goto out; } } err = mlx4_register_vlan(mdev->dev, priv->port, vid, &idx); if (err) en_dbg(HW, priv, "Failed adding vlan %d\n", vid); out: mutex_unlock(&mdev->state_lock); return err; } static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; en_dbg(HW, priv, "Killing VID:%d\n", vid); clear_bit(vid, priv->active_vlans); /* Remove VID from port VLAN filter */ mutex_lock(&mdev->state_lock); mlx4_unregister_vlan(mdev->dev, priv->port, vid); if (mdev->device_up && priv->port_up) { err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); if (err) en_err(priv, "Failed configuring VLAN filter\n"); } mutex_unlock(&mdev->state_lock); return err; } static void mlx4_en_u64_to_mac(struct net_device *dev, u64 src_mac) { u8 addr[ETH_ALEN]; u64_to_ether_addr(src_mac, addr); eth_hw_addr_set(dev, addr); } static int mlx4_en_tunnel_steer_add(struct mlx4_en_priv *priv, const unsigned char *addr, int qpn, u64 *reg_id) { int err; if (priv->mdev->dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN || priv->mdev->dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) return 0; /* do nothing */ err = mlx4_tunnel_steer_add(priv->mdev->dev, addr, priv->port, qpn, MLX4_DOMAIN_NIC, reg_id); if (err) { en_err(priv, "failed to add vxlan steering rule, err %d\n", err); return err; } en_dbg(DRV, priv, "added vxlan steering rule, mac %pM reg_id %llx\n", addr, *reg_id); return 0; } static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv, const unsigned char *mac, int *qpn, u64 *reg_id) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_dev *dev = mdev->dev; int err; switch (dev->caps.steering_mode) { case MLX4_STEERING_MODE_B0: { struct mlx4_qp qp; u8 gid[16] = {0}; qp.qpn = *qpn; memcpy(&gid[10], mac, ETH_ALEN); gid[5] = priv->port; err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH); break; } case MLX4_STEERING_MODE_DEVICE_MANAGED: { struct mlx4_spec_list spec_eth = { {NULL} }; __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); struct mlx4_net_trans_rule rule = { .queue_mode = MLX4_NET_TRANS_Q_FIFO, .exclusive = 0, .allow_loopback = 1, .promisc_mode = MLX4_FS_REGULAR, .priority = MLX4_DOMAIN_NIC, }; rule.port = priv->port; rule.qpn = *qpn; INIT_LIST_HEAD(&rule.list); spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH; memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN); memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); list_add_tail(&spec_eth.list, &rule.list); err = mlx4_flow_attach(dev, &rule, reg_id); break; } default: return -EINVAL; } if (err) en_warn(priv, "Failed Attaching Unicast\n"); return err; } static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv, const unsigned char *mac, int qpn, u64 reg_id) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_dev *dev = mdev->dev; switch (dev->caps.steering_mode) { case MLX4_STEERING_MODE_B0: { struct mlx4_qp qp; u8 gid[16] = {0}; qp.qpn = qpn; memcpy(&gid[10], mac, ETH_ALEN); gid[5] = priv->port; mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH); break; } case MLX4_STEERING_MODE_DEVICE_MANAGED: { mlx4_flow_detach(dev, reg_id); break; } default: en_err(priv, "Invalid steering mode.\n"); } } static int mlx4_en_get_qp(struct mlx4_en_priv *priv) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_dev *dev = mdev->dev; int index = 0; int err = 0; int *qpn = &priv->base_qpn; u64 mac = ether_addr_to_u64(priv->dev->dev_addr); en_dbg(DRV, priv, "Registering MAC: %pM for adding\n", priv->dev->dev_addr); index = mlx4_register_mac(dev, priv->port, mac); if (index < 0) { err = index; en_err(priv, "Failed adding MAC: %pM\n", priv->dev->dev_addr); return err; } en_info(priv, "Steering Mode %d\n", dev->caps.steering_mode); if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { int base_qpn = mlx4_get_base_qpn(dev, priv->port); *qpn = base_qpn + index; return 0; } err = mlx4_qp_reserve_range(dev, 1, 1, qpn, MLX4_RESERVE_A0_QP, MLX4_RES_USAGE_DRIVER); en_dbg(DRV, priv, "Reserved qp %d\n", *qpn); if (err) { en_err(priv, "Failed to reserve qp for mac registration\n"); mlx4_unregister_mac(dev, priv->port, mac); return err; } return 0; } static void mlx4_en_put_qp(struct mlx4_en_priv *priv) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_dev *dev = mdev->dev; int qpn = priv->base_qpn; if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { u64 mac = ether_addr_to_u64(priv->dev->dev_addr); en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n", priv->dev->dev_addr); mlx4_unregister_mac(dev, priv->port, mac); } else { en_dbg(DRV, priv, "Releasing qp: port %d, qpn %d\n", priv->port, qpn); mlx4_qp_release_range(dev, qpn, 1); priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC; } } static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn, unsigned char *new_mac, unsigned char *prev_mac) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_dev *dev = mdev->dev; int err = 0; u64 new_mac_u64 = ether_addr_to_u64(new_mac); if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) { struct hlist_head *bucket; unsigned int mac_hash; struct mlx4_mac_entry *entry; struct hlist_node *tmp; u64 prev_mac_u64 = ether_addr_to_u64(prev_mac); bucket = &priv->mac_hash[prev_mac[MLX4_EN_MAC_HASH_IDX]]; hlist_for_each_entry_safe(entry, tmp, bucket, hlist) { if (ether_addr_equal_64bits(entry->mac, prev_mac)) { mlx4_en_uc_steer_release(priv, entry->mac, qpn, entry->reg_id); mlx4_unregister_mac(dev, priv->port, prev_mac_u64); hlist_del_rcu(&entry->hlist); synchronize_rcu(); memcpy(entry->mac, new_mac, ETH_ALEN); entry->reg_id = 0; mac_hash = new_mac[MLX4_EN_MAC_HASH_IDX]; hlist_add_head_rcu(&entry->hlist, &priv->mac_hash[mac_hash]); mlx4_register_mac(dev, priv->port, new_mac_u64); err = mlx4_en_uc_steer_add(priv, new_mac, &qpn, &entry->reg_id); if (err) return err; if (priv->tunnel_reg_id) { mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id); priv->tunnel_reg_id = 0; } err = mlx4_en_tunnel_steer_add(priv, new_mac, qpn, &priv->tunnel_reg_id); return err; } } return -EINVAL; } return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64); } static void mlx4_en_update_user_mac(struct mlx4_en_priv *priv, unsigned char new_mac[ETH_ALEN + 2]) { struct mlx4_en_dev *mdev = priv->mdev; int err; if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_USER_MAC_EN)) return; err = mlx4_SET_PORT_user_mac(mdev->dev, priv->port, new_mac); if (err) en_err(priv, "Failed to pass user MAC(%pM) to Firmware for port %d, with error %d\n", new_mac, priv->port, err); } static int mlx4_en_do_set_mac(struct mlx4_en_priv *priv, unsigned char new_mac[ETH_ALEN + 2]) { int err = 0; if (priv->port_up) { /* Remove old MAC and insert the new one */ err = mlx4_en_replace_mac(priv, priv->base_qpn, new_mac, priv->current_mac); if (err) en_err(priv, "Failed changing HW MAC address\n"); } else en_dbg(HW, priv, "Port is down while registering mac, exiting...\n"); if (!err) memcpy(priv->current_mac, new_mac, sizeof(priv->current_mac)); return err; } static int mlx4_en_set_mac(struct net_device *dev, void *addr) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct sockaddr *saddr = addr; unsigned char new_mac[ETH_ALEN + 2]; int err; if (!is_valid_ether_addr(saddr->sa_data)) return -EADDRNOTAVAIL; mutex_lock(&mdev->state_lock); memcpy(new_mac, saddr->sa_data, ETH_ALEN); err = mlx4_en_do_set_mac(priv, new_mac); if (err) goto out; eth_hw_addr_set(dev, saddr->sa_data); mlx4_en_update_user_mac(priv, new_mac); out: mutex_unlock(&mdev->state_lock); return err; } static void mlx4_en_clear_list(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_mc_list *tmp, *mc_to_del; list_for_each_entry_safe(mc_to_del, tmp, &priv->mc_list, list) { list_del(&mc_to_del->list); kfree(mc_to_del); } } static void mlx4_en_cache_mclist(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct netdev_hw_addr *ha; struct mlx4_en_mc_list *tmp; mlx4_en_clear_list(dev); netdev_for_each_mc_addr(ha, dev) { tmp = kzalloc(sizeof(struct mlx4_en_mc_list), GFP_ATOMIC); if (!tmp) { mlx4_en_clear_list(dev); return; } memcpy(tmp->addr, ha->addr, ETH_ALEN); list_add_tail(&tmp->list, &priv->mc_list); } } static void update_mclist_flags(struct mlx4_en_priv *priv, struct list_head *dst, struct list_head *src) { struct mlx4_en_mc_list *dst_tmp, *src_tmp, *new_mc; bool found; /* Find all the entries that should be removed from dst, * These are the entries that are not found in src */ list_for_each_entry(dst_tmp, dst, list) { found = false; list_for_each_entry(src_tmp, src, list) { if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) { found = true; break; } } if (!found) dst_tmp->action = MCLIST_REM; } /* Add entries that exist in src but not in dst * mark them as need to add */ list_for_each_entry(src_tmp, src, list) { found = false; list_for_each_entry(dst_tmp, dst, list) { if (ether_addr_equal(dst_tmp->addr, src_tmp->addr)) { dst_tmp->action = MCLIST_NONE; found = true; break; } } if (!found) { new_mc = kmemdup(src_tmp, sizeof(struct mlx4_en_mc_list), GFP_KERNEL); if (!new_mc) return; new_mc->action = MCLIST_ADD; list_add_tail(&new_mc->list, dst); } } } static void mlx4_en_set_rx_mode(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); if (!priv->port_up) return; queue_work(priv->mdev->workqueue, &priv->rx_mode_task); } static void mlx4_en_set_promisc_mode(struct mlx4_en_priv *priv, struct mlx4_en_dev *mdev) { int err = 0; if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { if (netif_msg_rx_status(priv)) en_warn(priv, "Entering promiscuous mode\n"); priv->flags |= MLX4_EN_FLAG_PROMISC; /* Enable promiscouos mode */ switch (mdev->dev->caps.steering_mode) { case MLX4_STEERING_MODE_DEVICE_MANAGED: err = mlx4_flow_steer_promisc_add(mdev->dev, priv->port, priv->base_qpn, MLX4_FS_ALL_DEFAULT); if (err) en_err(priv, "Failed enabling promiscuous mode\n"); priv->flags |= MLX4_EN_FLAG_MC_PROMISC; break; case MLX4_STEERING_MODE_B0: err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed enabling unicast promiscuous mode\n"); /* Add the default qp number as multicast * promisc */ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed enabling multicast promiscuous mode\n"); priv->flags |= MLX4_EN_FLAG_MC_PROMISC; } break; case MLX4_STEERING_MODE_A0: err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 1); if (err) en_err(priv, "Failed enabling promiscuous mode\n"); break; } /* Disable port multicast filter (unconditionally) */ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); } } static void mlx4_en_clear_promisc_mode(struct mlx4_en_priv *priv, struct mlx4_en_dev *mdev) { int err = 0; if (netif_msg_rx_status(priv)) en_warn(priv, "Leaving promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_PROMISC; /* Disable promiscouos mode */ switch (mdev->dev->caps.steering_mode) { case MLX4_STEERING_MODE_DEVICE_MANAGED: err = mlx4_flow_steer_promisc_remove(mdev->dev, priv->port, MLX4_FS_ALL_DEFAULT); if (err) en_err(priv, "Failed disabling promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; break; case MLX4_STEERING_MODE_B0: err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed disabling unicast promiscuous mode\n"); /* Disable Multicast promisc */ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed disabling multicast promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; } break; case MLX4_STEERING_MODE_A0: err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); if (err) en_err(priv, "Failed disabling promiscuous mode\n"); break; } } static void mlx4_en_do_multicast(struct mlx4_en_priv *priv, struct net_device *dev, struct mlx4_en_dev *mdev) { struct mlx4_en_mc_list *mclist, *tmp; u64 mcast_addr = 0; u8 mc_list[16] = {0}; int err = 0; /* Enable/disable the multicast filter according to IFF_ALLMULTI */ if (dev->flags & IFF_ALLMULTI) { err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); /* Add the default qp number as multicast promisc */ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { switch (mdev->dev->caps.steering_mode) { case MLX4_STEERING_MODE_DEVICE_MANAGED: err = mlx4_flow_steer_promisc_add(mdev->dev, priv->port, priv->base_qpn, MLX4_FS_MC_DEFAULT); break; case MLX4_STEERING_MODE_B0: err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); break; case MLX4_STEERING_MODE_A0: break; } if (err) en_err(priv, "Failed entering multicast promisc mode\n"); priv->flags |= MLX4_EN_FLAG_MC_PROMISC; } } else { /* Disable Multicast promisc */ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { switch (mdev->dev->caps.steering_mode) { case MLX4_STEERING_MODE_DEVICE_MANAGED: err = mlx4_flow_steer_promisc_remove(mdev->dev, priv->port, MLX4_FS_MC_DEFAULT); break; case MLX4_STEERING_MODE_B0: err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); break; case MLX4_STEERING_MODE_A0: break; } if (err) en_err(priv, "Failed disabling multicast promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; } err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); /* Flush mcast filter and init it with broadcast address */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, 1, MLX4_MCAST_CONFIG); /* Update multicast list - we cache all addresses so they won't * change while HW is updated holding the command semaphore */ netif_addr_lock_bh(dev); mlx4_en_cache_mclist(dev); netif_addr_unlock_bh(dev); list_for_each_entry(mclist, &priv->mc_list, list) { mcast_addr = ether_addr_to_u64(mclist->addr); mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, mcast_addr, 0, MLX4_MCAST_CONFIG); } err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_ENABLE); if (err) en_err(priv, "Failed enabling multicast filter\n"); update_mclist_flags(priv, &priv->curr_list, &priv->mc_list); list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { if (mclist->action == MCLIST_REM) { /* detach this address and delete from list */ memcpy(&mc_list[10], mclist->addr, ETH_ALEN); mc_list[5] = priv->port; err = mlx4_multicast_detach(mdev->dev, priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH, mclist->reg_id); if (err) en_err(priv, "Fail to detach multicast address\n"); if (mclist->tunnel_reg_id) { err = mlx4_flow_detach(priv->mdev->dev, mclist->tunnel_reg_id); if (err) en_err(priv, "Failed to detach multicast address\n"); } /* remove from list */ list_del(&mclist->list); kfree(mclist); } else if (mclist->action == MCLIST_ADD) { /* attach the address */ memcpy(&mc_list[10], mclist->addr, ETH_ALEN); /* needed for B0 steering support */ mc_list[5] = priv->port; err = mlx4_multicast_attach(mdev->dev, priv->rss_map.indir_qp, mc_list, priv->port, 0, MLX4_PROT_ETH, &mclist->reg_id); if (err) en_err(priv, "Fail to attach multicast address\n"); err = mlx4_en_tunnel_steer_add(priv, &mc_list[10], priv->base_qpn, &mclist->tunnel_reg_id); if (err) en_err(priv, "Failed to attach multicast address\n"); } } } } static void mlx4_en_do_uc_filter(struct mlx4_en_priv *priv, struct net_device *dev, struct mlx4_en_dev *mdev) { struct netdev_hw_addr *ha; struct mlx4_mac_entry *entry; struct hlist_node *tmp; bool found; u64 mac; int err = 0; struct hlist_head *bucket; unsigned int i; int removed = 0; u32 prev_flags; /* Note that we do not need to protect our mac_hash traversal with rcu, * since all modification code is protected by mdev->state_lock */ /* find what to remove */ for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) { bucket = &priv->mac_hash[i]; hlist_for_each_entry_safe(entry, tmp, bucket, hlist) { found = false; netdev_for_each_uc_addr(ha, dev) { if (ether_addr_equal_64bits(entry->mac, ha->addr)) { found = true; break; } } /* MAC address of the port is not in uc list */ if (ether_addr_equal_64bits(entry->mac, priv->current_mac)) found = true; if (!found) { mac = ether_addr_to_u64(entry->mac); mlx4_en_uc_steer_release(priv, entry->mac, priv->base_qpn, entry->reg_id); mlx4_unregister_mac(mdev->dev, priv->port, mac); hlist_del_rcu(&entry->hlist); kfree_rcu(entry, rcu); en_dbg(DRV, priv, "Removed MAC %pM on port:%d\n", entry->mac, priv->port); ++removed; } } } /* if we didn't remove anything, there is no use in trying to add * again once we are in a forced promisc mode state */ if ((priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) && 0 == removed) return; prev_flags = priv->flags; priv->flags &= ~MLX4_EN_FLAG_FORCE_PROMISC; /* find what to add */ netdev_for_each_uc_addr(ha, dev) { found = false; bucket = &priv->mac_hash[ha->addr[MLX4_EN_MAC_HASH_IDX]]; hlist_for_each_entry(entry, bucket, hlist) { if (ether_addr_equal_64bits(entry->mac, ha->addr)) { found = true; break; } } if (!found) { entry = kmalloc(sizeof(*entry), GFP_KERNEL); if (!entry) { en_err(priv, "Failed adding MAC %pM on port:%d (out of memory)\n", ha->addr, priv->port); priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC; break; } mac = ether_addr_to_u64(ha->addr); memcpy(entry->mac, ha->addr, ETH_ALEN); err = mlx4_register_mac(mdev->dev, priv->port, mac); if (err < 0) { en_err(priv, "Failed registering MAC %pM on port %d: %d\n", ha->addr, priv->port, err); kfree(entry); priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC; break; } err = mlx4_en_uc_steer_add(priv, ha->addr, &priv->base_qpn, &entry->reg_id); if (err) { en_err(priv, "Failed adding MAC %pM on port %d: %d\n", ha->addr, priv->port, err); mlx4_unregister_mac(mdev->dev, priv->port, mac); kfree(entry); priv->flags |= MLX4_EN_FLAG_FORCE_PROMISC; break; } else { unsigned int mac_hash; en_dbg(DRV, priv, "Added MAC %pM on port:%d\n", ha->addr, priv->port); mac_hash = ha->addr[MLX4_EN_MAC_HASH_IDX]; bucket = &priv->mac_hash[mac_hash]; hlist_add_head_rcu(&entry->hlist, bucket); } } } if (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC) { en_warn(priv, "Forcing promiscuous mode on port:%d\n", priv->port); } else if (prev_flags & MLX4_EN_FLAG_FORCE_PROMISC) { en_warn(priv, "Stop forcing promiscuous mode on port:%d\n", priv->port); } } static void mlx4_en_do_set_rx_mode(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, rx_mode_task); struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; mutex_lock(&mdev->state_lock); if (!mdev->device_up) { en_dbg(HW, priv, "Card is not up, ignoring rx mode change.\n"); goto out; } if (!priv->port_up) { en_dbg(HW, priv, "Port is down, ignoring rx mode change.\n"); goto out; } if (!netif_carrier_ok(dev)) { if (!mlx4_en_QUERY_PORT(mdev, priv->port)) { if (priv->port_state.link_state) { netif_carrier_on(dev); en_dbg(LINK, priv, "Link Up\n"); } } } if (dev->priv_flags & IFF_UNICAST_FLT) mlx4_en_do_uc_filter(priv, dev, mdev); /* Promsicuous mode: disable all filters */ if ((dev->flags & IFF_PROMISC) || (priv->flags & MLX4_EN_FLAG_FORCE_PROMISC)) { mlx4_en_set_promisc_mode(priv, mdev); goto out; } /* Not in promiscuous mode */ if (priv->flags & MLX4_EN_FLAG_PROMISC) mlx4_en_clear_promisc_mode(priv, mdev); mlx4_en_do_multicast(priv, dev, mdev); out: mutex_unlock(&mdev->state_lock); } static int mlx4_en_set_rss_steer_rules(struct mlx4_en_priv *priv) { u64 reg_id; int err = 0; int *qpn = &priv->base_qpn; struct mlx4_mac_entry *entry; err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id); if (err) return err; err = mlx4_en_tunnel_steer_add(priv, priv->dev->dev_addr, *qpn, &priv->tunnel_reg_id); if (err) goto tunnel_err; entry = kmalloc(sizeof(*entry), GFP_KERNEL); if (!entry) { err = -ENOMEM; goto alloc_err; } memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac)); memcpy(priv->current_mac, entry->mac, sizeof(priv->current_mac)); entry->reg_id = reg_id; hlist_add_head_rcu(&entry->hlist, &priv->mac_hash[entry->mac[MLX4_EN_MAC_HASH_IDX]]); return 0; alloc_err: if (priv->tunnel_reg_id) mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id); tunnel_err: mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id); return err; } static void mlx4_en_delete_rss_steer_rules(struct mlx4_en_priv *priv) { u64 mac; unsigned int i; int qpn = priv->base_qpn; struct hlist_head *bucket; struct hlist_node *tmp; struct mlx4_mac_entry *entry; for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) { bucket = &priv->mac_hash[i]; hlist_for_each_entry_safe(entry, tmp, bucket, hlist) { mac = ether_addr_to_u64(entry->mac); en_dbg(DRV, priv, "Registering MAC:%pM for deleting\n", entry->mac); mlx4_en_uc_steer_release(priv, entry->mac, qpn, entry->reg_id); mlx4_unregister_mac(priv->mdev->dev, priv->port, mac); hlist_del_rcu(&entry->hlist); kfree_rcu(entry, rcu); } } if (priv->tunnel_reg_id) { mlx4_flow_detach(priv->mdev->dev, priv->tunnel_reg_id); priv->tunnel_reg_id = 0; } } static void mlx4_en_tx_timeout(struct net_device *dev, unsigned int txqueue) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][txqueue]; if (netif_msg_timer(priv)) en_warn(priv, "Tx timeout called on port:%d\n", priv->port); en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n", txqueue, tx_ring->qpn, tx_ring->sp_cqn, tx_ring->cons, tx_ring->prod); priv->port_stats.tx_timeout++; if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) { en_dbg(DRV, priv, "Scheduling port restart\n"); queue_work(mdev->workqueue, &priv->restart_task); } } static void mlx4_en_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct mlx4_en_priv *priv = netdev_priv(dev); spin_lock_bh(&priv->stats_lock); mlx4_en_fold_software_stats(dev); netdev_stats_to_stats64(stats, &dev->stats); spin_unlock_bh(&priv->stats_lock); } static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) { struct mlx4_en_cq *cq; int i, t; /* If we haven't received a specific coalescing setting * (module param), we set the moderation parameters as follows: * - moder_cnt is set to the number of mtu sized packets to * satisfy our coalescing target. * - moder_time is set to a fixed value. */ priv->rx_frames = MLX4_EN_RX_COAL_TARGET; priv->rx_usecs = MLX4_EN_RX_COAL_TIME; priv->tx_frames = MLX4_EN_TX_COAL_PKTS; priv->tx_usecs = MLX4_EN_TX_COAL_TIME; en_dbg(INTR, priv, "Default coalescing params for mtu:%d - rx_frames:%d rx_usecs:%d\n", priv->dev->mtu, priv->rx_frames, priv->rx_usecs); /* Setup cq moderation params */ for (i = 0; i < priv->rx_ring_num; i++) { cq = priv->rx_cq[i]; cq->moder_cnt = priv->rx_frames; cq->moder_time = priv->rx_usecs; priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; priv->last_moder_packets[i] = 0; priv->last_moder_bytes[i] = 0; } for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { for (i = 0; i < priv->tx_ring_num[t]; i++) { cq = priv->tx_cq[t][i]; cq->moder_cnt = priv->tx_frames; cq->moder_time = priv->tx_usecs; } } /* Reset auto-moderation params */ priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; priv->adaptive_rx_coal = 1; priv->last_moder_jiffies = 0; priv->last_moder_tx_packets = 0; } static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) { unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); u32 pkt_rate_high, pkt_rate_low; struct mlx4_en_cq *cq; unsigned long packets; unsigned long rate; unsigned long avg_pkt_size; unsigned long rx_packets; unsigned long rx_bytes; unsigned long rx_pkt_diff; int moder_time; int ring, err; if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) return; pkt_rate_low = READ_ONCE(priv->pkt_rate_low); pkt_rate_high = READ_ONCE(priv->pkt_rate_high); for (ring = 0; ring < priv->rx_ring_num; ring++) { rx_packets = READ_ONCE(priv->rx_ring[ring]->packets); rx_bytes = READ_ONCE(priv->rx_ring[ring]->bytes); rx_pkt_diff = rx_packets - priv->last_moder_packets[ring]; packets = rx_pkt_diff; rate = packets * HZ / period; avg_pkt_size = packets ? (rx_bytes - priv->last_moder_bytes[ring]) / packets : 0; /* Apply auto-moderation only when packet rate * exceeds a rate that it matters */ if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { if (rate <= pkt_rate_low) moder_time = priv->rx_usecs_low; else if (rate >= pkt_rate_high) moder_time = priv->rx_usecs_high; else moder_time = (rate - pkt_rate_low) * (priv->rx_usecs_high - priv->rx_usecs_low) / (pkt_rate_high - pkt_rate_low) + priv->rx_usecs_low; } else { moder_time = priv->rx_usecs_low; } cq = priv->rx_cq[ring]; if (moder_time != priv->last_moder_time[ring] || cq->moder_cnt != priv->rx_frames) { priv->last_moder_time[ring] = moder_time; cq->moder_time = moder_time; cq->moder_cnt = priv->rx_frames; err = mlx4_en_set_cq_moder(priv, cq); if (err) en_err(priv, "Failed modifying moderation for cq:%d\n", ring); } priv->last_moder_packets[ring] = rx_packets; priv->last_moder_bytes[ring] = rx_bytes; } priv->last_moder_jiffies = jiffies; } static void mlx4_en_do_get_stats(struct work_struct *work) { struct delayed_work *delay = to_delayed_work(work); struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, stats_task); struct mlx4_en_dev *mdev = priv->mdev; int err; mutex_lock(&mdev->state_lock); if (mdev->device_up) { if (priv->port_up) { err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); if (err) en_dbg(HW, priv, "Could not update stats\n"); mlx4_en_auto_moderation(priv); } queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); } if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { mlx4_en_do_set_mac(priv, priv->current_mac); mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; } mutex_unlock(&mdev->state_lock); } /* mlx4_en_service_task - Run service task for tasks that needed to be done * periodically */ static void mlx4_en_service_task(struct work_struct *work) { struct delayed_work *delay = to_delayed_work(work); struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, service_task); struct mlx4_en_dev *mdev = priv->mdev; mutex_lock(&mdev->state_lock); if (mdev->device_up) { if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) mlx4_en_ptp_overflow_check(mdev); mlx4_en_recover_from_oom(priv); queue_delayed_work(mdev->workqueue, &priv->service_task, SERVICE_TASK_DELAY); } mutex_unlock(&mdev->state_lock); } static void mlx4_en_linkstate(struct mlx4_en_priv *priv) { struct mlx4_en_port_state *port_state = &priv->port_state; struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; bool up; if (mlx4_en_QUERY_PORT(mdev, priv->port)) port_state->link_state = MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN; up = port_state->link_state == MLX4_PORT_STATE_DEV_EVENT_PORT_UP; if (up == netif_carrier_ok(dev)) netif_carrier_event(dev); if (!up) { en_info(priv, "Link Down\n"); netif_carrier_off(dev); } else { en_info(priv, "Link Up\n"); netif_carrier_on(dev); } } static void mlx4_en_linkstate_work(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, linkstate_task); struct mlx4_en_dev *mdev = priv->mdev; mutex_lock(&mdev->state_lock); mlx4_en_linkstate(priv); mutex_unlock(&mdev->state_lock); } static int mlx4_en_init_affinity_hint(struct mlx4_en_priv *priv, int ring_idx) { struct mlx4_en_rx_ring *ring = priv->rx_ring[ring_idx]; int numa_node = priv->mdev->dev->numa_node; if (!zalloc_cpumask_var(&ring->affinity_mask, GFP_KERNEL)) return -ENOMEM; cpumask_set_cpu(cpumask_local_spread(ring_idx, numa_node), ring->affinity_mask); return 0; } static void mlx4_en_free_affinity_hint(struct mlx4_en_priv *priv, int ring_idx) { free_cpumask_var(priv->rx_ring[ring_idx]->affinity_mask); } static void mlx4_en_init_recycle_ring(struct mlx4_en_priv *priv, int tx_ring_idx) { struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX_XDP][tx_ring_idx]; int rr_index = tx_ring_idx; tx_ring->free_tx_desc = mlx4_en_recycle_tx_desc; tx_ring->recycle_ring = priv->rx_ring[rr_index]; en_dbg(DRV, priv, "Set tx_ring[%d][%d]->recycle_ring = rx_ring[%d]\n", TX_XDP, tx_ring_idx, rr_index); } int mlx4_en_start_port(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_cq *cq; struct mlx4_en_tx_ring *tx_ring; int rx_index = 0; int err = 0; int i, t; int j; u8 mc_list[16] = {0}; if (priv->port_up) { en_dbg(DRV, priv, "start port called while port already up\n"); return 0; } INIT_LIST_HEAD(&priv->mc_list); INIT_LIST_HEAD(&priv->curr_list); INIT_LIST_HEAD(&priv->ethtool_list); memset(&priv->ethtool_rules[0], 0, sizeof(struct ethtool_flow_id) * MAX_NUM_OF_FS_RULES); /* Calculate Rx buf size */ WRITE_ONCE(dev->mtu, min(dev->mtu, priv->max_mtu)); mlx4_en_calc_rx_buf(dev); en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); /* Configure rx cq's and rings */ err = mlx4_en_activate_rx_rings(priv); if (err) { en_err(priv, "Failed to activate RX rings\n"); return err; } for (i = 0; i < priv->rx_ring_num; i++) { cq = priv->rx_cq[i]; err = mlx4_en_init_affinity_hint(priv, i); if (err) { en_err(priv, "Failed preparing IRQ affinity hint\n"); goto cq_err; } err = mlx4_en_activate_cq(priv, cq, i); if (err) { en_err(priv, "Failed activating Rx CQ\n"); mlx4_en_free_affinity_hint(priv, i); goto cq_err; } for (j = 0; j < cq->size; j++) { struct mlx4_cqe *cqe = NULL; cqe = mlx4_en_get_cqe(cq->buf, j, priv->cqe_size) + priv->cqe_factor; cqe->owner_sr_opcode = MLX4_CQE_OWNER_MASK; } err = mlx4_en_set_cq_moder(priv, cq); if (err) { en_err(priv, "Failed setting cq moderation parameters\n"); mlx4_en_deactivate_cq(priv, cq); mlx4_en_free_affinity_hint(priv, i); goto cq_err; } mlx4_en_arm_cq(priv, cq); priv->rx_ring[i]->cqn = cq->mcq.cqn; ++rx_index; } /* Set qp number */ en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); err = mlx4_en_get_qp(priv); if (err) { en_err(priv, "Failed getting eth qp\n"); goto cq_err; } mdev->mac_removed[priv->port] = 0; priv->counter_index = mlx4_get_default_counter_index(mdev->dev, priv->port); err = mlx4_en_config_rss_steer(priv); if (err) { en_err(priv, "Failed configuring rss steering\n"); goto mac_err; } err = mlx4_en_create_drop_qp(priv); if (err) goto rss_err; /* Configure tx cq's and rings */ for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { u8 num_tx_rings_p_up = t == TX ? priv->num_tx_rings_p_up : priv->tx_ring_num[t]; for (i = 0; i < priv->tx_ring_num[t]; i++) { /* Configure cq */ cq = priv->tx_cq[t][i]; err = mlx4_en_activate_cq(priv, cq, i); if (err) { en_err(priv, "Failed allocating Tx CQ\n"); goto tx_err; } err = mlx4_en_set_cq_moder(priv, cq); if (err) { en_err(priv, "Failed setting cq moderation parameters\n"); mlx4_en_deactivate_cq(priv, cq); goto tx_err; } en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); cq->buf->wqe_index = cpu_to_be16(0xffff); /* Configure ring */ tx_ring = priv->tx_ring[t][i]; err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, i / num_tx_rings_p_up); if (err) { en_err(priv, "Failed allocating Tx ring\n"); mlx4_en_deactivate_cq(priv, cq); goto tx_err; } clear_bit(MLX4_EN_TX_RING_STATE_RECOVERING, &tx_ring->state); if (t != TX_XDP) { tx_ring->tx_queue = netdev_get_tx_queue(dev, i); tx_ring->recycle_ring = NULL; /* Arm CQ for TX completions */ mlx4_en_arm_cq(priv, cq); } else { mlx4_en_init_tx_xdp_ring_descs(priv, tx_ring); mlx4_en_init_recycle_ring(priv, i); /* XDP TX CQ should never be armed */ } /* Set initial ownership of all Tx TXBBs to SW (1) */ for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) *((u32 *)(tx_ring->buf + j)) = 0xffffffff; } } /* Configure port */ err = mlx4_SET_PORT_general(mdev->dev, priv->port, priv->rx_skb_size + ETH_FCS_LEN, priv->prof->tx_pause, priv->prof->tx_ppp, priv->prof->rx_pause, priv->prof->rx_ppp); if (err) { en_err(priv, "Failed setting port general configurations for port %d, with error %d\n", priv->port, err); goto tx_err; } err = mlx4_SET_PORT_user_mtu(mdev->dev, priv->port, dev->mtu); if (err) { en_err(priv, "Failed to pass user MTU(%d) to Firmware for port %d, with error %d\n", dev->mtu, priv->port, err); goto tx_err; } /* Set default qp number */ err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); if (err) { en_err(priv, "Failed setting default qp numbers\n"); goto tx_err; } if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1); if (err) { en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n", err); goto tx_err; } } /* Init port */ en_dbg(HW, priv, "Initializing port\n"); err = mlx4_INIT_PORT(mdev->dev, priv->port); if (err) { en_err(priv, "Failed Initializing port\n"); goto tx_err; } /* Set Unicast and VXLAN steering rules */ if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0 && mlx4_en_set_rss_steer_rules(priv)) mlx4_warn(mdev, "Failed setting steering rules\n"); /* Attach rx QP to broadcast address */ eth_broadcast_addr(&mc_list[10]); mc_list[5] = priv->port; /* needed for B0 steering support */ if (mlx4_multicast_attach(mdev->dev, priv->rss_map.indir_qp, mc_list, priv->port, 0, MLX4_PROT_ETH, &priv->broadcast_id)) mlx4_warn(mdev, "Failed Attaching Broadcast\n"); /* Must redo promiscuous mode setup. */ priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); /* Schedule multicast task to populate multicast list */ queue_work(mdev->workqueue, &priv->rx_mode_task); if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) udp_tunnel_nic_reset_ntf(dev); priv->port_up = true; /* Process all completions if exist to prevent * the queues freezing if they are full */ for (i = 0; i < priv->rx_ring_num; i++) { local_bh_disable(); napi_schedule(&priv->rx_cq[i]->napi); local_bh_enable(); } clear_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state); netif_tx_start_all_queues(dev); netif_device_attach(dev); return 0; tx_err: if (t == MLX4_EN_NUM_TX_TYPES) { t--; i = priv->tx_ring_num[t]; } while (t >= 0) { while (i--) { mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]); mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]); } if (!t--) break; i = priv->tx_ring_num[t]; } mlx4_en_destroy_drop_qp(priv); rss_err: mlx4_en_release_rss_steer(priv); mac_err: mlx4_en_put_qp(priv); cq_err: while (rx_index--) { mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]); mlx4_en_free_affinity_hint(priv, rx_index); } for (i = 0; i < priv->rx_ring_num; i++) mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]); return err; /* need to close devices */ } void mlx4_en_stop_port(struct net_device *dev, int detach) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_mc_list *mclist, *tmp; struct ethtool_flow_id *flow, *tmp_flow; int i, t; u8 mc_list[16] = {0}; if (!priv->port_up) { en_dbg(DRV, priv, "stop port called while port already down\n"); return; } /* close port*/ mlx4_CLOSE_PORT(mdev->dev, priv->port); /* Synchronize with tx routine */ netif_tx_lock_bh(dev); if (detach) netif_device_detach(dev); netif_tx_stop_all_queues(dev); netif_tx_unlock_bh(dev); netif_tx_disable(dev); spin_lock_bh(&priv->stats_lock); mlx4_en_fold_software_stats(dev); /* Set port as not active */ priv->port_up = false; spin_unlock_bh(&priv->stats_lock); priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev); /* Promsicuous mode */ if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); mlx4_flow_steer_promisc_remove(mdev->dev, priv->port, MLX4_FS_ALL_DEFAULT); mlx4_flow_steer_promisc_remove(mdev->dev, priv->port, MLX4_FS_MC_DEFAULT); } else if (priv->flags & MLX4_EN_FLAG_PROMISC) { priv->flags &= ~MLX4_EN_FLAG_PROMISC; /* Disable promiscouos mode */ mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); /* Disable Multicast promisc */ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; } } /* Detach All multicasts */ eth_broadcast_addr(&mc_list[10]); mc_list[5] = priv->port; /* needed for B0 steering support */ mlx4_multicast_detach(mdev->dev, priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH, priv->broadcast_id); list_for_each_entry(mclist, &priv->curr_list, list) { memcpy(&mc_list[10], mclist->addr, ETH_ALEN); mc_list[5] = priv->port; mlx4_multicast_detach(mdev->dev, priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH, mclist->reg_id); if (mclist->tunnel_reg_id) mlx4_flow_detach(mdev->dev, mclist->tunnel_reg_id); } mlx4_en_clear_list(dev); list_for_each_entry_safe(mclist, tmp, &priv->curr_list, list) { list_del(&mclist->list); kfree(mclist); } /* Flush multicast filter */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); /* Remove flow steering rules for the port*/ if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { ASSERT_RTNL(); list_for_each_entry_safe(flow, tmp_flow, &priv->ethtool_list, list) { mlx4_flow_detach(mdev->dev, flow->id); list_del(&flow->list); } } mlx4_en_destroy_drop_qp(priv); /* Free TX Rings */ for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { for (i = 0; i < priv->tx_ring_num[t]; i++) { mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[t][i]); mlx4_en_deactivate_cq(priv, priv->tx_cq[t][i]); } } msleep(10); for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) for (i = 0; i < priv->tx_ring_num[t]; i++) mlx4_en_free_tx_buf(dev, priv->tx_ring[t][i]); if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0) mlx4_en_delete_rss_steer_rules(priv); /* Free RSS qps */ mlx4_en_release_rss_steer(priv); /* Unregister Mac address for the port */ mlx4_en_put_qp(priv); if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN)) mdev->mac_removed[priv->port] = 1; /* Free RX Rings */ for (i = 0; i < priv->rx_ring_num; i++) { struct mlx4_en_cq *cq = priv->rx_cq[i]; napi_synchronize(&cq->napi); mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]); mlx4_en_deactivate_cq(priv, cq); mlx4_en_free_affinity_hint(priv, i); } } static void mlx4_en_restart(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, restart_task); struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); rtnl_lock(); mutex_lock(&mdev->state_lock); if (priv->port_up) { mlx4_en_stop_port(dev, 1); if (mlx4_en_start_port(dev)) en_err(priv, "Failed restarting port %d\n", priv->port); } mutex_unlock(&mdev->state_lock); rtnl_unlock(); } static void mlx4_en_clear_stats(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_tx_ring **tx_ring; int i; if (!mlx4_is_slave(mdev->dev)) if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) en_dbg(HW, priv, "Failed dumping statistics\n"); memset(&priv->pkstats, 0, sizeof(priv->pkstats)); memset(&priv->port_stats, 0, sizeof(priv->port_stats)); memset(&priv->rx_flowstats, 0, sizeof(priv->rx_flowstats)); memset(&priv->tx_flowstats, 0, sizeof(priv->tx_flowstats)); memset(&priv->rx_priority_flowstats, 0, sizeof(priv->rx_priority_flowstats)); memset(&priv->tx_priority_flowstats, 0, sizeof(priv->tx_priority_flowstats)); memset(&priv->pf_stats, 0, sizeof(priv->pf_stats)); tx_ring = priv->tx_ring[TX]; for (i = 0; i < priv->tx_ring_num[TX]; i++) { tx_ring[i]->bytes = 0; tx_ring[i]->packets = 0; tx_ring[i]->tx_csum = 0; tx_ring[i]->tx_dropped = 0; tx_ring[i]->queue_stopped = 0; tx_ring[i]->wake_queue = 0; tx_ring[i]->tso_packets = 0; tx_ring[i]->xmit_more = 0; } for (i = 0; i < priv->rx_ring_num; i++) { priv->rx_ring[i]->bytes = 0; priv->rx_ring[i]->packets = 0; priv->rx_ring[i]->csum_ok = 0; priv->rx_ring[i]->csum_none = 0; priv->rx_ring[i]->csum_complete = 0; priv->rx_ring[i]->alloc_fail = 0; } } static int mlx4_en_open(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; mutex_lock(&mdev->state_lock); if (!mdev->device_up) { en_err(priv, "Cannot open - device down/disabled\n"); err = -EBUSY; goto out; } /* Reset HW statistics and SW counters */ mlx4_en_clear_stats(dev); err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed starting port:%d\n", priv->port); goto out; } mlx4_en_linkstate(priv); out: mutex_unlock(&mdev->state_lock); return err; } static int mlx4_en_close(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; en_dbg(IFDOWN, priv, "Close port called\n"); mutex_lock(&mdev->state_lock); mlx4_en_stop_port(dev, 0); netif_carrier_off(dev); mutex_unlock(&mdev->state_lock); return 0; } static void mlx4_en_free_resources(struct mlx4_en_priv *priv) { int i, t; #ifdef CONFIG_RFS_ACCEL priv->dev->rx_cpu_rmap = NULL; #endif for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { for (i = 0; i < priv->tx_ring_num[t]; i++) { if (priv->tx_ring[t] && priv->tx_ring[t][i]) mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[t][i]); if (priv->tx_cq[t] && priv->tx_cq[t][i]) mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]); } kfree(priv->tx_ring[t]); kfree(priv->tx_cq[t]); } for (i = 0; i < priv->rx_ring_num; i++) { if (priv->rx_ring[i]) mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], priv->prof->rx_ring_size, priv->stride); if (priv->rx_cq[i]) mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); } } static int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) { struct mlx4_en_port_profile *prof = priv->prof; int i, t; int node; /* Create tx Rings */ for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { for (i = 0; i < priv->tx_ring_num[t]; i++) { node = cpu_to_node(i % num_online_cpus()); if (mlx4_en_create_cq(priv, &priv->tx_cq[t][i], prof->tx_ring_size, i, t, node)) goto err; if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[t][i], prof->tx_ring_size, TXBB_SIZE, node, i)) goto err; } } /* Create rx Rings */ for (i = 0; i < priv->rx_ring_num; i++) { node = cpu_to_node(i % num_online_cpus()); if (mlx4_en_create_cq(priv, &priv->rx_cq[i], prof->rx_ring_size, i, RX, node)) goto err; if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], prof->rx_ring_size, priv->stride, node, i)) goto err; } #ifdef CONFIG_RFS_ACCEL priv->dev->rx_cpu_rmap = mlx4_get_cpu_rmap(priv->mdev->dev, priv->port); #endif return 0; err: en_err(priv, "Failed to allocate NIC resources\n"); for (i = 0; i < priv->rx_ring_num; i++) { if (priv->rx_ring[i]) mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], prof->rx_ring_size, priv->stride); if (priv->rx_cq[i]) mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); } for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { for (i = 0; i < priv->tx_ring_num[t]; i++) { if (priv->tx_ring[t][i]) mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[t][i]); if (priv->tx_cq[t][i]) mlx4_en_destroy_cq(priv, &priv->tx_cq[t][i]); } } return -ENOMEM; } static int mlx4_en_copy_priv(struct mlx4_en_priv *dst, struct mlx4_en_priv *src, struct mlx4_en_port_profile *prof) { int t; memcpy(&dst->hwtstamp_config, &prof->hwtstamp_config, sizeof(dst->hwtstamp_config)); dst->num_tx_rings_p_up = prof->num_tx_rings_p_up; dst->rx_ring_num = prof->rx_ring_num; dst->flags = prof->flags; dst->mdev = src->mdev; dst->port = src->port; dst->dev = src->dev; dst->prof = prof; dst->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + DS_SIZE * MLX4_EN_MAX_RX_FRAGS); for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { dst->tx_ring_num[t] = prof->tx_ring_num[t]; if (!dst->tx_ring_num[t]) continue; dst->tx_ring[t] = kcalloc(MAX_TX_RINGS, sizeof(struct mlx4_en_tx_ring *), GFP_KERNEL); if (!dst->tx_ring[t]) goto err_free_tx; dst->tx_cq[t] = kcalloc(MAX_TX_RINGS, sizeof(struct mlx4_en_cq *), GFP_KERNEL); if (!dst->tx_cq[t]) { kfree(dst->tx_ring[t]); goto err_free_tx; } } return 0; err_free_tx: while (t--) { kfree(dst->tx_ring[t]); kfree(dst->tx_cq[t]); } return -ENOMEM; } static void mlx4_en_update_priv(struct mlx4_en_priv *dst, struct mlx4_en_priv *src) { int t; memcpy(dst->rx_ring, src->rx_ring, sizeof(struct mlx4_en_rx_ring *) * src->rx_ring_num); memcpy(dst->rx_cq, src->rx_cq, sizeof(struct mlx4_en_cq *) * src->rx_ring_num); memcpy(&dst->hwtstamp_config, &src->hwtstamp_config, sizeof(dst->hwtstamp_config)); for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { dst->tx_ring_num[t] = src->tx_ring_num[t]; dst->tx_ring[t] = src->tx_ring[t]; dst->tx_cq[t] = src->tx_cq[t]; } dst->num_tx_rings_p_up = src->num_tx_rings_p_up; dst->rx_ring_num = src->rx_ring_num; memcpy(dst->prof, src->prof, sizeof(struct mlx4_en_port_profile)); } int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, struct mlx4_en_priv *tmp, struct mlx4_en_port_profile *prof, bool carry_xdp_prog) { struct bpf_prog *xdp_prog; int i, t, ret; ret = mlx4_en_copy_priv(tmp, priv, prof); if (ret) { en_warn(priv, "%s: mlx4_en_copy_priv() failed, return\n", __func__); return ret; } if (mlx4_en_alloc_resources(tmp)) { en_warn(priv, "%s: Resource allocation failed, using previous configuration\n", __func__); for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { kfree(tmp->tx_ring[t]); kfree(tmp->tx_cq[t]); } return -ENOMEM; } /* All rx_rings has the same xdp_prog. Pick the first one. */ xdp_prog = rcu_dereference_protected( priv->rx_ring[0]->xdp_prog, lockdep_is_held(&priv->mdev->state_lock)); if (xdp_prog && carry_xdp_prog) { bpf_prog_add(xdp_prog, tmp->rx_ring_num); for (i = 0; i < tmp->rx_ring_num; i++) rcu_assign_pointer(tmp->rx_ring[i]->xdp_prog, xdp_prog); } return 0; } void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, struct mlx4_en_priv *tmp) { mlx4_en_free_resources(priv); mlx4_en_update_priv(priv, tmp); } void mlx4_en_destroy_netdev(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); /* Unregister device - this will close the port if it was up */ if (priv->registered) unregister_netdev(dev); if (priv->allocated) mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); cancel_delayed_work(&priv->stats_task); cancel_delayed_work(&priv->service_task); /* flush any pending task for this netdev */ flush_workqueue(mdev->workqueue); if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) mlx4_en_remove_timestamp(mdev); /* Detach the netdev so tasks would not attempt to access it */ mutex_lock(&mdev->state_lock); mdev->pndev[priv->port] = NULL; mdev->upper[priv->port] = NULL; #ifdef CONFIG_RFS_ACCEL mlx4_en_cleanup_filters(priv); #endif mlx4_en_free_resources(priv); mutex_unlock(&mdev->state_lock); free_netdev(dev); } static bool mlx4_en_check_xdp_mtu(struct net_device *dev, int mtu) { struct mlx4_en_priv *priv = netdev_priv(dev); if (mtu > MLX4_EN_MAX_XDP_MTU) { en_err(priv, "mtu:%d > max:%d when XDP prog is attached\n", mtu, MLX4_EN_MAX_XDP_MTU); return false; } return true; } static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", dev->mtu, new_mtu); if (priv->tx_ring_num[TX_XDP] && !mlx4_en_check_xdp_mtu(dev, new_mtu)) return -EOPNOTSUPP; WRITE_ONCE(dev->mtu, new_mtu); if (netif_running(dev)) { mutex_lock(&mdev->state_lock); if (!mdev->device_up) { /* NIC is probably restarting - let restart task reset * the port */ en_dbg(DRV, priv, "Change MTU called with card down!?\n"); } else { mlx4_en_stop_port(dev, 1); err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed restarting port:%d\n", priv->port); if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) queue_work(mdev->workqueue, &priv->restart_task); } } mutex_unlock(&mdev->state_lock); } return 0; } static int mlx4_en_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct hwtstamp_config config; if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) return -EFAULT; /* device doesn't support time stamping */ if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)) return -EINVAL; /* TX HW timestamp */ switch (config.tx_type) { case HWTSTAMP_TX_OFF: case HWTSTAMP_TX_ON: break; default: return -ERANGE; } /* RX HW timestamp */ switch (config.rx_filter) { case HWTSTAMP_FILTER_NONE: break; case HWTSTAMP_FILTER_ALL: case HWTSTAMP_FILTER_SOME: case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: case HWTSTAMP_FILTER_PTP_V2_EVENT: case HWTSTAMP_FILTER_PTP_V2_SYNC: case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: case HWTSTAMP_FILTER_NTP_ALL: config.rx_filter = HWTSTAMP_FILTER_ALL; break; default: return -ERANGE; } if (mlx4_en_reset_config(dev, config, dev->features)) { config.tx_type = HWTSTAMP_TX_OFF; config.rx_filter = HWTSTAMP_FILTER_NONE; } return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0; } static int mlx4_en_hwtstamp_get(struct net_device *dev, struct ifreq *ifr) { struct mlx4_en_priv *priv = netdev_priv(dev); return copy_to_user(ifr->ifr_data, &priv->hwtstamp_config, sizeof(priv->hwtstamp_config)) ? -EFAULT : 0; } static int mlx4_en_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { switch (cmd) { case SIOCSHWTSTAMP: return mlx4_en_hwtstamp_set(dev, ifr); case SIOCGHWTSTAMP: return mlx4_en_hwtstamp_get(dev, ifr); default: return -EOPNOTSUPP; } } static netdev_features_t mlx4_en_fix_features(struct net_device *netdev, netdev_features_t features) { struct mlx4_en_priv *en_priv = netdev_priv(netdev); struct mlx4_en_dev *mdev = en_priv->mdev; /* Since there is no support for separate RX C-TAG/S-TAG vlan accel * enable/disable make sure S-TAG flag is always in same state as * C-TAG. */ if (features & NETIF_F_HW_VLAN_CTAG_RX && !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) features |= NETIF_F_HW_VLAN_STAG_RX; else features &= ~NETIF_F_HW_VLAN_STAG_RX; return features; } static int mlx4_en_set_features(struct net_device *netdev, netdev_features_t features) { struct mlx4_en_priv *priv = netdev_priv(netdev); bool reset = false; int ret = 0; if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXFCS)) { en_info(priv, "Turn %s RX-FCS\n", (features & NETIF_F_RXFCS) ? "ON" : "OFF"); reset = true; } if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_RXALL)) { u8 ignore_fcs_value = (features & NETIF_F_RXALL) ? 1 : 0; en_info(priv, "Turn %s RX-ALL\n", ignore_fcs_value ? "ON" : "OFF"); ret = mlx4_SET_PORT_fcs_check(priv->mdev->dev, priv->port, ignore_fcs_value); if (ret) return ret; } if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_RX)) { en_info(priv, "Turn %s RX vlan strip offload\n", (features & NETIF_F_HW_VLAN_CTAG_RX) ? "ON" : "OFF"); reset = true; } if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_CTAG_TX)) en_info(priv, "Turn %s TX vlan strip offload\n", (features & NETIF_F_HW_VLAN_CTAG_TX) ? "ON" : "OFF"); if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_HW_VLAN_STAG_TX)) en_info(priv, "Turn %s TX S-VLAN strip offload\n", (features & NETIF_F_HW_VLAN_STAG_TX) ? "ON" : "OFF"); if (DEV_FEATURE_CHANGED(netdev, features, NETIF_F_LOOPBACK)) { en_info(priv, "Turn %s loopback\n", (features & NETIF_F_LOOPBACK) ? "ON" : "OFF"); mlx4_en_update_loopback_state(netdev, features); } if (reset) { ret = mlx4_en_reset_config(netdev, priv->hwtstamp_config, features); if (ret) return ret; } return 0; } static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac); } static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos, __be16 vlan_proto) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_set_vf_vlan(mdev->dev, en_priv->port, vf, vlan, qos, vlan_proto); } static int mlx4_en_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_set_vf_rate(mdev->dev, en_priv->port, vf, min_tx_rate, max_tx_rate); } static int mlx4_en_set_vf_spoofchk(struct net_device *dev, int vf, bool setting) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_set_vf_spoofchk(mdev->dev, en_priv->port, vf, setting); } static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivf) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf); } static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state); } static int mlx4_en_get_vf_stats(struct net_device *dev, int vf, struct ifla_vf_stats *vf_stats) { struct mlx4_en_priv *en_priv = netdev_priv(dev); struct mlx4_en_dev *mdev = en_priv->mdev; return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats); } #define PORT_ID_BYTE_LEN 8 static int mlx4_en_get_phys_port_id(struct net_device *dev, struct netdev_phys_item_id *ppid) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_dev *mdev = priv->mdev->dev; int i; u64 phys_port_id = mdev->caps.phys_port_id[priv->port]; if (!phys_port_id) return -EOPNOTSUPP; ppid->id_len = sizeof(phys_port_id); for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) { ppid->id[i] = phys_port_id & 0xff; phys_port_id >>= 8; } return 0; } static int mlx4_udp_tunnel_sync(struct net_device *dev, unsigned int table) { struct mlx4_en_priv *priv = netdev_priv(dev); struct udp_tunnel_info ti; int ret; udp_tunnel_nic_get_port(dev, table, 0, &ti); priv->vxlan_port = ti.port; ret = mlx4_config_vxlan_port(priv->mdev->dev, priv->vxlan_port); if (ret) return ret; return mlx4_SET_PORT_VXLAN(priv->mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, !!priv->vxlan_port); } static const struct udp_tunnel_nic_info mlx4_udp_tunnels = { .sync_table = mlx4_udp_tunnel_sync, .flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP | UDP_TUNNEL_NIC_INFO_IPV4_ONLY, .tables = { { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, }, }, }; static netdev_features_t mlx4_en_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) { features = vlan_features_check(skb, features); features = vxlan_features_check(skb, features); /* The ConnectX-3 doesn't support outer IPv6 checksums but it does * support inner IPv6 checksums and segmentation so we need to * strip that feature if this is an IPv6 encapsulated frame. */ if (skb->encapsulation && (skb->ip_summed == CHECKSUM_PARTIAL)) { struct mlx4_en_priv *priv = netdev_priv(dev); if (!priv->vxlan_port || (ip_hdr(skb)->version != 4) || (udp_hdr(skb)->dest != priv->vxlan_port)) features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); } return features; } static int mlx4_en_set_tx_maxrate(struct net_device *dev, int queue_index, u32 maxrate) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_tx_ring *tx_ring = priv->tx_ring[TX][queue_index]; struct mlx4_update_qp_params params; int err; if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT)) return -EOPNOTSUPP; /* rate provided to us in Mbs, check if it fits into 12 bits, if not use Gbs */ if (maxrate >> 12) { params.rate_unit = MLX4_QP_RATE_LIMIT_GBS; params.rate_val = maxrate / 1000; } else if (maxrate) { params.rate_unit = MLX4_QP_RATE_LIMIT_MBS; params.rate_val = maxrate; } else { /* zero serves to revoke the QP rate-limitation */ params.rate_unit = 0; params.rate_val = 0; } err = mlx4_update_qp(priv->mdev->dev, tx_ring->qpn, MLX4_UPDATE_QP_RATE_LIMIT, ¶ms); return err; } static int mlx4_xdp_set(struct net_device *dev, struct bpf_prog *prog) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_port_profile new_prof; struct bpf_prog *old_prog; struct mlx4_en_priv *tmp; int tx_changed = 0; int xdp_ring_num; int port_up = 0; int err; int i; xdp_ring_num = prog ? priv->rx_ring_num : 0; /* No need to reconfigure buffers when simply swapping the * program for a new one. */ if (priv->tx_ring_num[TX_XDP] == xdp_ring_num) { if (prog) bpf_prog_add(prog, priv->rx_ring_num - 1); mutex_lock(&mdev->state_lock); for (i = 0; i < priv->rx_ring_num; i++) { old_prog = rcu_dereference_protected( priv->rx_ring[i]->xdp_prog, lockdep_is_held(&mdev->state_lock)); rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog); if (old_prog) bpf_prog_put(old_prog); } mutex_unlock(&mdev->state_lock); return 0; } if (!mlx4_en_check_xdp_mtu(dev, dev->mtu)) return -EOPNOTSUPP; tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return -ENOMEM; if (prog) bpf_prog_add(prog, priv->rx_ring_num - 1); mutex_lock(&mdev->state_lock); memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); new_prof.tx_ring_num[TX_XDP] = xdp_ring_num; if (priv->tx_ring_num[TX] + xdp_ring_num > MAX_TX_RINGS) { tx_changed = 1; new_prof.tx_ring_num[TX] = MAX_TX_RINGS - ALIGN(xdp_ring_num, priv->prof->num_up); en_warn(priv, "Reducing the number of TX rings, to not exceed the max total rings number.\n"); } err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, false); if (err) { if (prog) bpf_prog_sub(prog, priv->rx_ring_num - 1); goto unlock_out; } if (priv->port_up) { port_up = 1; mlx4_en_stop_port(dev, 1); } mlx4_en_safe_replace_resources(priv, tmp); if (tx_changed) netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); for (i = 0; i < priv->rx_ring_num; i++) { old_prog = rcu_dereference_protected( priv->rx_ring[i]->xdp_prog, lockdep_is_held(&mdev->state_lock)); rcu_assign_pointer(priv->rx_ring[i]->xdp_prog, prog); if (old_prog) bpf_prog_put(old_prog); } if (port_up) { err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed starting port %d for XDP change\n", priv->port); if (!test_and_set_bit(MLX4_EN_STATE_FLAG_RESTARTING, &priv->state)) queue_work(mdev->workqueue, &priv->restart_task); } } unlock_out: mutex_unlock(&mdev->state_lock); kfree(tmp); return err; } static int mlx4_xdp(struct net_device *dev, struct netdev_bpf *xdp) { switch (xdp->command) { case XDP_SETUP_PROG: return mlx4_xdp_set(dev, xdp->prog); default: return -EINVAL; } } static const struct net_device_ops mlx4_netdev_ops = { .ndo_open = mlx4_en_open, .ndo_stop = mlx4_en_close, .ndo_start_xmit = mlx4_en_xmit, .ndo_select_queue = mlx4_en_select_queue, .ndo_get_stats64 = mlx4_en_get_stats64, .ndo_set_rx_mode = mlx4_en_set_rx_mode, .ndo_set_mac_address = mlx4_en_set_mac, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = mlx4_en_change_mtu, .ndo_eth_ioctl = mlx4_en_ioctl, .ndo_tx_timeout = mlx4_en_tx_timeout, .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, .ndo_set_features = mlx4_en_set_features, .ndo_fix_features = mlx4_en_fix_features, .ndo_setup_tc = __mlx4_en_setup_tc, #ifdef CONFIG_RFS_ACCEL .ndo_rx_flow_steer = mlx4_en_filter_rfs, #endif .ndo_get_phys_port_id = mlx4_en_get_phys_port_id, .ndo_features_check = mlx4_en_features_check, .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate, .ndo_bpf = mlx4_xdp, }; static const struct net_device_ops mlx4_netdev_ops_master = { .ndo_open = mlx4_en_open, .ndo_stop = mlx4_en_close, .ndo_start_xmit = mlx4_en_xmit, .ndo_select_queue = mlx4_en_select_queue, .ndo_get_stats64 = mlx4_en_get_stats64, .ndo_set_rx_mode = mlx4_en_set_rx_mode, .ndo_set_mac_address = mlx4_en_set_mac, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = mlx4_en_change_mtu, .ndo_tx_timeout = mlx4_en_tx_timeout, .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, .ndo_set_vf_mac = mlx4_en_set_vf_mac, .ndo_set_vf_vlan = mlx4_en_set_vf_vlan, .ndo_set_vf_rate = mlx4_en_set_vf_rate, .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk, .ndo_set_vf_link_state = mlx4_en_set_vf_link_state, .ndo_get_vf_stats = mlx4_en_get_vf_stats, .ndo_get_vf_config = mlx4_en_get_vf_config, .ndo_set_features = mlx4_en_set_features, .ndo_fix_features = mlx4_en_fix_features, .ndo_setup_tc = __mlx4_en_setup_tc, #ifdef CONFIG_RFS_ACCEL .ndo_rx_flow_steer = mlx4_en_filter_rfs, #endif .ndo_get_phys_port_id = mlx4_en_get_phys_port_id, .ndo_features_check = mlx4_en_features_check, .ndo_set_tx_maxrate = mlx4_en_set_tx_maxrate, .ndo_bpf = mlx4_xdp, }; static const struct xdp_metadata_ops mlx4_xdp_metadata_ops = { .xmo_rx_timestamp = mlx4_en_xdp_rx_timestamp, .xmo_rx_hash = mlx4_en_xdp_rx_hash, }; int mlx4_en_netdev_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *ndev = netdev_notifier_info_to_dev(ptr); u8 port = 0; struct mlx4_en_dev *mdev; struct mlx4_dev *dev; int i, num_eth_ports = 0; bool do_bond = true; u8 v2p_port1 = 0; u8 v2p_port2 = 0; if (!net_eq(dev_net(ndev), &init_net)) return NOTIFY_DONE; mdev = container_of(this, struct mlx4_en_dev, netdev_nb); dev = mdev->dev; /* Go into this mode only when two network devices set on two ports * of the same mlx4 device are slaves of the same bonding master */ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { ++num_eth_ports; if (!port && (mdev->pndev[i] == ndev)) port = i; mdev->upper[i] = mdev->pndev[i] ? netdev_master_upper_dev_get(mdev->pndev[i]) : NULL; /* condition not met: network device is a slave */ if (!mdev->upper[i]) do_bond = false; if (num_eth_ports < 2) continue; /* condition not met: same master */ if (mdev->upper[i] != mdev->upper[i-1]) do_bond = false; } /* condition not met: 2 salves */ do_bond = (num_eth_ports == 2) ? do_bond : false; /* handle only events that come with enough info */ if ((do_bond && (event != NETDEV_BONDING_INFO)) || !port) return NOTIFY_DONE; if (do_bond) { struct netdev_notifier_bonding_info *notifier_info = ptr; struct netdev_bonding_info *bonding_info = ¬ifier_info->bonding_info; /* required mode 1, 2 or 4 */ if ((bonding_info->master.bond_mode != BOND_MODE_ACTIVEBACKUP) && (bonding_info->master.bond_mode != BOND_MODE_XOR) && (bonding_info->master.bond_mode != BOND_MODE_8023AD)) do_bond = false; /* require exactly 2 slaves */ if (bonding_info->master.num_slaves != 2) do_bond = false; /* calc v2p */ if (do_bond) { if (bonding_info->master.bond_mode == BOND_MODE_ACTIVEBACKUP) { /* in active-backup mode virtual ports are * mapped to the physical port of the active * slave */ if (bonding_info->slave.state == BOND_STATE_BACKUP) { if (port == 1) { v2p_port1 = 2; v2p_port2 = 2; } else { v2p_port1 = 1; v2p_port2 = 1; } } else { /* BOND_STATE_ACTIVE */ if (port == 1) { v2p_port1 = 1; v2p_port2 = 1; } else { v2p_port1 = 2; v2p_port2 = 2; } } } else { /* Active-Active */ /* in active-active mode a virtual port is * mapped to the native physical port if and only * if the physical port is up */ __s8 link = bonding_info->slave.link; if (port == 1) v2p_port2 = 2; else v2p_port1 = 1; if ((link == BOND_LINK_UP) || (link == BOND_LINK_FAIL)) { if (port == 1) v2p_port1 = 1; else v2p_port2 = 2; } else { /* BOND_LINK_DOWN || BOND_LINK_BACK */ if (port == 1) v2p_port1 = 2; else v2p_port2 = 1; } } } } mlx4_queue_bond_work(dev, do_bond, v2p_port1, v2p_port2); return NOTIFY_DONE; } void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, struct mlx4_en_stats_bitmap *stats_bitmap, u8 rx_ppp, u8 rx_pause, u8 tx_ppp, u8 tx_pause) { int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS; if (!mlx4_is_slave(dev) && (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) { mutex_lock(&stats_bitmap->mutex); bitmap_clear(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS); if (rx_ppp) bitmap_set(stats_bitmap->bitmap, last_i, NUM_FLOW_PRIORITY_STATS_RX); last_i += NUM_FLOW_PRIORITY_STATS_RX; if (rx_pause && !(rx_ppp)) bitmap_set(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS_RX); last_i += NUM_FLOW_STATS_RX; if (tx_ppp) bitmap_set(stats_bitmap->bitmap, last_i, NUM_FLOW_PRIORITY_STATS_TX); last_i += NUM_FLOW_PRIORITY_STATS_TX; if (tx_pause && !(tx_ppp)) bitmap_set(stats_bitmap->bitmap, last_i, NUM_FLOW_STATS_TX); last_i += NUM_FLOW_STATS_TX; mutex_unlock(&stats_bitmap->mutex); } } void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, struct mlx4_en_stats_bitmap *stats_bitmap, u8 rx_ppp, u8 rx_pause, u8 tx_ppp, u8 tx_pause) { int last_i = 0; mutex_init(&stats_bitmap->mutex); bitmap_zero(stats_bitmap->bitmap, NUM_ALL_STATS); if (mlx4_is_slave(dev)) { bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(rx_packets), 1); bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(tx_packets), 1); bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(rx_bytes), 1); bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(tx_bytes), 1); bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(rx_dropped), 1); bitmap_set(stats_bitmap->bitmap, last_i + MLX4_FIND_NETDEV_STAT(tx_dropped), 1); } else { bitmap_set(stats_bitmap->bitmap, last_i, NUM_MAIN_STATS); } last_i += NUM_MAIN_STATS; bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS); last_i += NUM_PORT_STATS; if (mlx4_is_master(dev)) bitmap_set(stats_bitmap->bitmap, last_i, NUM_PF_STATS); last_i += NUM_PF_STATS; mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap, rx_ppp, rx_pause, tx_ppp, tx_pause); last_i += NUM_FLOW_STATS; if (!mlx4_is_slave(dev)) bitmap_set(stats_bitmap->bitmap, last_i, NUM_PKT_STATS); last_i += NUM_PKT_STATS; bitmap_set(stats_bitmap->bitmap, last_i, NUM_XDP_STATS); last_i += NUM_XDP_STATS; if (!mlx4_is_slave(dev)) bitmap_set(stats_bitmap->bitmap, last_i, NUM_PHY_STATS); last_i += NUM_PHY_STATS; } static void mlx4_get_queue_stats_rx(struct net_device *dev, int i, struct netdev_queue_stats_rx *stats) { struct mlx4_en_priv *priv = netdev_priv(dev); const struct mlx4_en_rx_ring *ring; spin_lock_bh(&priv->stats_lock); if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) goto out_unlock; ring = priv->rx_ring[i]; stats->packets = READ_ONCE(ring->packets); stats->bytes = READ_ONCE(ring->bytes); stats->alloc_fail = READ_ONCE(ring->alloc_fail); out_unlock: spin_unlock_bh(&priv->stats_lock); } static void mlx4_get_queue_stats_tx(struct net_device *dev, int i, struct netdev_queue_stats_tx *stats) { struct mlx4_en_priv *priv = netdev_priv(dev); const struct mlx4_en_tx_ring *ring; spin_lock_bh(&priv->stats_lock); if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) goto out_unlock; ring = priv->tx_ring[TX][i]; stats->packets = READ_ONCE(ring->packets); stats->bytes = READ_ONCE(ring->bytes); out_unlock: spin_unlock_bh(&priv->stats_lock); } static void mlx4_get_base_stats(struct net_device *dev, struct netdev_queue_stats_rx *rx, struct netdev_queue_stats_tx *tx) { struct mlx4_en_priv *priv = netdev_priv(dev); spin_lock_bh(&priv->stats_lock); if (!priv->port_up || mlx4_is_master(priv->mdev->dev)) goto out_unlock; if (priv->rx_ring_num) { rx->packets = 0; rx->bytes = 0; rx->alloc_fail = 0; } if (priv->tx_ring_num[TX]) { tx->packets = 0; tx->bytes = 0; } out_unlock: spin_unlock_bh(&priv->stats_lock); } static const struct netdev_stat_ops mlx4_stat_ops = { .get_queue_stats_rx = mlx4_get_queue_stats_rx, .get_queue_stats_tx = mlx4_get_queue_stats_tx, .get_base_stats = mlx4_get_base_stats, }; int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, struct mlx4_en_port_profile *prof) { struct net_device *dev; struct mlx4_en_priv *priv; int i, t; int err; dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), MAX_TX_RINGS, MAX_RX_RINGS); if (dev == NULL) return -ENOMEM; netif_set_real_num_tx_queues(dev, prof->tx_ring_num[TX]); netif_set_real_num_rx_queues(dev, prof->rx_ring_num); SET_NETDEV_DEV(dev, &mdev->dev->persist->pdev->dev); dev->dev_port = port - 1; /* * Initialize driver private data */ priv = netdev_priv(dev); memset(priv, 0, sizeof(struct mlx4_en_priv)); priv->counter_index = MLX4_SINK_COUNTER_INDEX(mdev->dev); spin_lock_init(&priv->stats_lock); INIT_WORK(&priv->rx_mode_task, mlx4_en_do_set_rx_mode); INIT_WORK(&priv->restart_task, mlx4_en_restart); INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate_work); INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); INIT_DELAYED_WORK(&priv->service_task, mlx4_en_service_task); #ifdef CONFIG_RFS_ACCEL INIT_LIST_HEAD(&priv->filters); spin_lock_init(&priv->filters_lock); #endif priv->dev = dev; priv->mdev = mdev; priv->ddev = &mdev->pdev->dev; priv->prof = prof; priv->port = port; priv->port_up = false; priv->flags = prof->flags; priv->pflags = MLX4_EN_PRIV_FLAGS_BLUEFLAME; priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE | MLX4_WQE_CTRL_SOLICITED); priv->num_tx_rings_p_up = mdev->profile.max_num_tx_rings_p_up; priv->tx_work_limit = MLX4_EN_DEFAULT_TX_WORK; netdev_rss_key_fill(priv->rss_key, sizeof(priv->rss_key)); for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) { priv->tx_ring_num[t] = prof->tx_ring_num[t]; if (!priv->tx_ring_num[t]) continue; priv->tx_ring[t] = kcalloc(MAX_TX_RINGS, sizeof(struct mlx4_en_tx_ring *), GFP_KERNEL); if (!priv->tx_ring[t]) { err = -ENOMEM; goto out; } priv->tx_cq[t] = kcalloc(MAX_TX_RINGS, sizeof(struct mlx4_en_cq *), GFP_KERNEL); if (!priv->tx_cq[t]) { err = -ENOMEM; goto out; } } priv->rx_ring_num = prof->rx_ring_num; priv->cqe_factor = (mdev->dev->caps.cqe_size == 64) ? 1 : 0; priv->cqe_size = mdev->dev->caps.cqe_size; priv->mac_index = -1; priv->msg_enable = MLX4_EN_MSG_LEVEL; #ifdef CONFIG_MLX4_EN_DCB if (!mlx4_is_slave(priv->mdev->dev)) { u8 prio; for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; ++prio) { priv->ets.prio_tc[prio] = prio; priv->ets.tc_tsa[prio] = IEEE_8021QAZ_TSA_VENDOR; } priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; priv->flags |= MLX4_EN_DCB_ENABLED; priv->cee_config.pfc_state = false; for (i = 0; i < MLX4_EN_NUM_UP_HIGH; i++) priv->cee_config.dcb_pfc[i] = pfc_disabled; if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) { dev->dcbnl_ops = &mlx4_en_dcbnl_ops; } else { en_info(priv, "enabling only PFC DCB ops\n"); dev->dcbnl_ops = &mlx4_en_dcbnl_pfc_ops; } } #endif for (i = 0; i < MLX4_EN_MAC_HASH_SIZE; ++i) INIT_HLIST_HEAD(&priv->mac_hash[i]); /* Query for default mac and max mtu */ priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; if (mdev->dev->caps.rx_checksum_flags_port[priv->port] & MLX4_RX_CSUM_MODE_VAL_NON_TCP_UDP) priv->flags |= MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP; /* Set default MAC */ dev->addr_len = ETH_ALEN; mlx4_en_u64_to_mac(dev, mdev->dev->caps.def_mac[priv->port]); if (!is_valid_ether_addr(dev->dev_addr)) { en_err(priv, "Port: %d, invalid mac burned: %pM, quitting\n", priv->port, dev->dev_addr); err = -EINVAL; goto out; } else if (mlx4_is_slave(priv->mdev->dev) && (priv->mdev->dev->port_random_macs & 1 << priv->port)) { /* Random MAC was assigned in mlx4_slave_cap * in mlx4_core module */ dev->addr_assign_type |= NET_ADDR_RANDOM; en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr); } memcpy(priv->current_mac, dev->dev_addr, sizeof(priv->current_mac)); priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + DS_SIZE * MLX4_EN_MAX_RX_FRAGS); err = mlx4_en_alloc_resources(priv); if (err) goto out; /* Initialize time stamping config */ priv->hwtstamp_config.flags = 0; priv->hwtstamp_config.tx_type = HWTSTAMP_TX_OFF; priv->hwtstamp_config.rx_filter = HWTSTAMP_FILTER_NONE; /* Allocate page for receive rings */ err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); if (err) { en_err(priv, "Failed to allocate page for rx qps\n"); goto out; } priv->allocated = 1; /* * Initialize netdev entry points */ if (mlx4_is_master(priv->mdev->dev)) dev->netdev_ops = &mlx4_netdev_ops_master; else dev->netdev_ops = &mlx4_netdev_ops; dev->xdp_metadata_ops = &mlx4_xdp_metadata_ops; dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); netif_set_real_num_rx_queues(dev, priv->rx_ring_num); dev->stat_ops = &mlx4_stat_ops; dev->ethtool_ops = &mlx4_en_ethtool_ops; /* * Set driver features */ dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; if (mdev->LSO_support) dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_PARTIAL; dev->features |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_PARTIAL; dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; dev->hw_enc_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_PARTIAL; dev->udp_tunnel_nic_info = &mlx4_udp_tunnels; } dev->vlan_features = dev->hw_features; dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH; dev->features = dev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER; dev->hw_features |= NETIF_F_LOOPBACK | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX; if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) { dev->features |= NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_FILTER; dev->hw_features |= NETIF_F_HW_VLAN_STAG_RX; } if (mlx4_is_slave(mdev->dev)) { bool vlan_offload_disabled; int phv; err = get_phv_bit(mdev->dev, port, &phv); if (!err && phv) { dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV; } err = mlx4_get_is_vlan_offload_disabled(mdev->dev, port, &vlan_offload_disabled); if (!err && vlan_offload_disabled) { dev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_STAG_RX); dev->features &= ~(NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_STAG_RX); } } else { if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN && !(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SKIP_OUTER_VLAN)) dev->hw_features |= NETIF_F_HW_VLAN_STAG_TX; } if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP) dev->hw_features |= NETIF_F_RXFCS; if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS) dev->hw_features |= NETIF_F_RXALL; if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED && mdev->dev->caps.dmfs_high_steer_mode != MLX4_STEERING_DMFS_A0_STATIC) dev->hw_features |= NETIF_F_NTUPLE; if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_A0) dev->priv_flags |= IFF_UNICAST_FLT; /* Setting a default hash function value */ if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP) { priv->rss_hash_fn = ETH_RSS_HASH_TOP; } else if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR) { priv->rss_hash_fn = ETH_RSS_HASH_XOR; } else { en_warn(priv, "No RSS hash capabilities exposed, using Toeplitz\n"); priv->rss_hash_fn = ETH_RSS_HASH_TOP; } dev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT; /* MTU range: 68 - hw-specific max */ dev->min_mtu = ETH_MIN_MTU; dev->max_mtu = priv->max_mtu; /* supports LSOv2 packets. */ netif_set_tso_max_size(dev, GSO_MAX_SIZE); mdev->pndev[port] = dev; mdev->upper[port] = NULL; netif_carrier_off(dev); mlx4_en_set_default_moderation(priv); en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num[TX]); en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); mlx4_en_update_loopback_state(priv->dev, priv->dev->features); /* Configure port */ mlx4_en_calc_rx_buf(dev); err = mlx4_SET_PORT_general(mdev->dev, priv->port, priv->rx_skb_size + ETH_FCS_LEN, prof->tx_pause, prof->tx_ppp, prof->rx_pause, prof->rx_ppp); if (err) { en_err(priv, "Failed setting port general configurations for port %d, with error %d\n", priv->port, err); goto out; } if (mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) { err = mlx4_SET_PORT_VXLAN(mdev->dev, priv->port, VXLAN_STEER_BY_OUTER_MAC, 1); if (err) { en_err(priv, "Failed setting port L2 tunnel configuration, err %d\n", err); goto out; } } /* Init port */ en_warn(priv, "Initializing port\n"); err = mlx4_INIT_PORT(mdev->dev, priv->port); if (err) { en_err(priv, "Failed Initializing port\n"); goto out; } queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); /* Initialize time stamp mechanism */ if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) mlx4_en_init_timestamp(mdev); queue_delayed_work(mdev->workqueue, &priv->service_task, SERVICE_TASK_DELAY); mlx4_en_set_stats_bitmap(mdev->dev, &priv->stats_bitmap, mdev->profile.prof[priv->port].rx_ppp, mdev->profile.prof[priv->port].rx_pause, mdev->profile.prof[priv->port].tx_ppp, mdev->profile.prof[priv->port].tx_pause); SET_NETDEV_DEVLINK_PORT(dev, mlx4_get_devlink_port(mdev->dev, priv->port)); err = register_netdev(dev); if (err) { en_err(priv, "Netdev registration failed for port %d\n", port); goto out; } priv->registered = 1; return 0; out: mlx4_en_destroy_netdev(dev); return err; } int mlx4_en_reset_config(struct net_device *dev, struct hwtstamp_config ts_config, netdev_features_t features) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_port_profile new_prof; struct mlx4_en_priv *tmp; int port_up = 0; int err = 0; if (priv->hwtstamp_config.tx_type == ts_config.tx_type && priv->hwtstamp_config.rx_filter == ts_config.rx_filter && !DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) && !DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) return 0; /* Nothing to change */ if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX) && (features & NETIF_F_HW_VLAN_CTAG_RX) && (priv->hwtstamp_config.rx_filter != HWTSTAMP_FILTER_NONE)) { en_warn(priv, "Can't turn ON rx vlan offload while time-stamping rx filter is ON\n"); return -EINVAL; } tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) return -ENOMEM; mutex_lock(&mdev->state_lock); memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); memcpy(&new_prof.hwtstamp_config, &ts_config, sizeof(ts_config)); err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); if (err) goto out; if (priv->port_up) { port_up = 1; mlx4_en_stop_port(dev, 1); } mlx4_en_safe_replace_resources(priv, tmp); if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_HW_VLAN_CTAG_RX)) { if (features & NETIF_F_HW_VLAN_CTAG_RX) dev->features |= NETIF_F_HW_VLAN_CTAG_RX; else dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; } else if (ts_config.rx_filter == HWTSTAMP_FILTER_NONE) { /* RX time-stamping is OFF, update the RX vlan offload * to the latest wanted state */ if (dev->wanted_features & NETIF_F_HW_VLAN_CTAG_RX) dev->features |= NETIF_F_HW_VLAN_CTAG_RX; else dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; } if (DEV_FEATURE_CHANGED(dev, features, NETIF_F_RXFCS)) { if (features & NETIF_F_RXFCS) dev->features |= NETIF_F_RXFCS; else dev->features &= ~NETIF_F_RXFCS; } /* RX vlan offload and RX time-stamping can't co-exist ! * Regardless of the caller's choice, * Turn Off RX vlan offload in case of time-stamping is ON */ if (ts_config.rx_filter != HWTSTAMP_FILTER_NONE) { if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) en_warn(priv, "Turning off RX vlan offload since RX time-stamping is ON\n"); dev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; } if (port_up) { err = mlx4_en_start_port(dev); if (err) en_err(priv, "Failed starting port\n"); } if (!err) err = mlx4_en_moderation_update(priv); out: mutex_unlock(&mdev->state_lock); kfree(tmp); if (!err) netdev_features_change(dev); return err; }
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