| /* QLogic qede NIC Driver |
| * Copyright (c) 2015-2017 QLogic Corporation |
| * |
| * 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/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <net/udp_tunnel.h> |
| #include <linux/bitops.h> |
| #include <linux/vmalloc.h> |
| |
| #include <linux/qed/qed_if.h> |
| #include "qede.h" |
| |
| #ifdef CONFIG_RFS_ACCEL |
| struct qede_arfs_tuple { |
| union { |
| __be32 src_ipv4; |
| struct in6_addr src_ipv6; |
| }; |
| union { |
| __be32 dst_ipv4; |
| struct in6_addr dst_ipv6; |
| }; |
| __be16 src_port; |
| __be16 dst_port; |
| __be16 eth_proto; |
| u8 ip_proto; |
| }; |
| |
| struct qede_arfs_fltr_node { |
| #define QEDE_FLTR_VALID 0 |
| unsigned long state; |
| |
| /* pointer to aRFS packet buffer */ |
| void *data; |
| |
| /* dma map address of aRFS packet buffer */ |
| dma_addr_t mapping; |
| |
| /* length of aRFS packet buffer */ |
| int buf_len; |
| |
| /* tuples to hold from aRFS packet buffer */ |
| struct qede_arfs_tuple tuple; |
| |
| u32 flow_id; |
| u16 sw_id; |
| u16 rxq_id; |
| u16 next_rxq_id; |
| bool filter_op; |
| bool used; |
| struct hlist_node node; |
| }; |
| |
| struct qede_arfs { |
| #define QEDE_ARFS_POLL_COUNT 100 |
| #define QEDE_RFS_FLW_BITSHIFT (4) |
| #define QEDE_RFS_FLW_MASK ((1 << QEDE_RFS_FLW_BITSHIFT) - 1) |
| struct hlist_head arfs_hl_head[1 << QEDE_RFS_FLW_BITSHIFT]; |
| |
| /* lock for filter list access */ |
| spinlock_t arfs_list_lock; |
| unsigned long *arfs_fltr_bmap; |
| int filter_count; |
| bool enable; |
| }; |
| |
| static void qede_configure_arfs_fltr(struct qede_dev *edev, |
| struct qede_arfs_fltr_node *n, |
| u16 rxq_id, bool add_fltr) |
| { |
| const struct qed_eth_ops *op = edev->ops; |
| |
| if (n->used) |
| return; |
| |
| DP_VERBOSE(edev, NETIF_MSG_RX_STATUS, |
| "%s arfs filter flow_id=%d, sw_id=%d, src_port=%d, dst_port=%d, rxq=%d\n", |
| add_fltr ? "Adding" : "Deleting", |
| n->flow_id, n->sw_id, ntohs(n->tuple.src_port), |
| ntohs(n->tuple.dst_port), rxq_id); |
| |
| n->used = true; |
| n->filter_op = add_fltr; |
| op->ntuple_filter_config(edev->cdev, n, n->mapping, n->buf_len, 0, |
| rxq_id, add_fltr); |
| } |
| |
| static void |
| qede_free_arfs_filter(struct qede_dev *edev, struct qede_arfs_fltr_node *fltr) |
| { |
| kfree(fltr->data); |
| clear_bit(fltr->sw_id, edev->arfs->arfs_fltr_bmap); |
| kfree(fltr); |
| } |
| |
| void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc) |
| { |
| struct qede_arfs_fltr_node *fltr = filter; |
| struct qede_dev *edev = dev; |
| |
| if (fw_rc) { |
| DP_NOTICE(edev, |
| "Failed arfs filter configuration fw_rc=%d, flow_id=%d, sw_id=%d, src_port=%d, dst_port=%d, rxq=%d\n", |
| fw_rc, fltr->flow_id, fltr->sw_id, |
| ntohs(fltr->tuple.src_port), |
| ntohs(fltr->tuple.dst_port), fltr->rxq_id); |
| |
| spin_lock_bh(&edev->arfs->arfs_list_lock); |
| |
| fltr->used = false; |
| clear_bit(QEDE_FLTR_VALID, &fltr->state); |
| |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| return; |
| } |
| |
| spin_lock_bh(&edev->arfs->arfs_list_lock); |
| |
| fltr->used = false; |
| |
| if (fltr->filter_op) { |
| set_bit(QEDE_FLTR_VALID, &fltr->state); |
| if (fltr->rxq_id != fltr->next_rxq_id) |
| qede_configure_arfs_fltr(edev, fltr, fltr->rxq_id, |
| false); |
| } else { |
| clear_bit(QEDE_FLTR_VALID, &fltr->state); |
| if (fltr->rxq_id != fltr->next_rxq_id) { |
| fltr->rxq_id = fltr->next_rxq_id; |
| qede_configure_arfs_fltr(edev, fltr, |
| fltr->rxq_id, true); |
| } |
| } |
| |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| } |
| |
| /* Should be called while qede_lock is held */ |
| void qede_process_arfs_filters(struct qede_dev *edev, bool free_fltr) |
| { |
| int i; |
| |
| for (i = 0; i <= QEDE_RFS_FLW_MASK; i++) { |
| struct hlist_node *temp; |
| struct hlist_head *head; |
| struct qede_arfs_fltr_node *fltr; |
| |
| head = &edev->arfs->arfs_hl_head[i]; |
| |
| hlist_for_each_entry_safe(fltr, temp, head, node) { |
| bool del = false; |
| |
| if (edev->state != QEDE_STATE_OPEN) |
| del = true; |
| |
| spin_lock_bh(&edev->arfs->arfs_list_lock); |
| |
| if ((!test_bit(QEDE_FLTR_VALID, &fltr->state) && |
| !fltr->used) || free_fltr) { |
| hlist_del(&fltr->node); |
| dma_unmap_single(&edev->pdev->dev, |
| fltr->mapping, |
| fltr->buf_len, DMA_TO_DEVICE); |
| qede_free_arfs_filter(edev, fltr); |
| edev->arfs->filter_count--; |
| } else { |
| if ((rps_may_expire_flow(edev->ndev, |
| fltr->rxq_id, |
| fltr->flow_id, |
| fltr->sw_id) || del) && |
| !free_fltr) |
| qede_configure_arfs_fltr(edev, fltr, |
| fltr->rxq_id, |
| false); |
| } |
| |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| } |
| } |
| |
| spin_lock_bh(&edev->arfs->arfs_list_lock); |
| |
| if (!edev->arfs->filter_count) { |
| if (edev->arfs->enable) { |
| edev->arfs->enable = false; |
| edev->ops->configure_arfs_searcher(edev->cdev, false); |
| } |
| } else { |
| set_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags); |
| schedule_delayed_work(&edev->sp_task, |
| QEDE_SP_TASK_POLL_DELAY); |
| } |
| |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| } |
| |
| /* This function waits until all aRFS filters get deleted and freed. |
| * On timeout it frees all filters forcefully. |
| */ |
| void qede_poll_for_freeing_arfs_filters(struct qede_dev *edev) |
| { |
| int count = QEDE_ARFS_POLL_COUNT; |
| |
| while (count) { |
| qede_process_arfs_filters(edev, false); |
| |
| if (!edev->arfs->filter_count) |
| break; |
| |
| msleep(100); |
| count--; |
| } |
| |
| if (!count) { |
| DP_NOTICE(edev, "Timeout in polling for arfs filter free\n"); |
| |
| /* Something is terribly wrong, free forcefully */ |
| qede_process_arfs_filters(edev, true); |
| } |
| } |
| |
| int qede_alloc_arfs(struct qede_dev *edev) |
| { |
| int i; |
| |
| edev->arfs = vzalloc(sizeof(*edev->arfs)); |
| if (!edev->arfs) |
| return -ENOMEM; |
| |
| spin_lock_init(&edev->arfs->arfs_list_lock); |
| |
| for (i = 0; i <= QEDE_RFS_FLW_MASK; i++) |
| INIT_HLIST_HEAD(&edev->arfs->arfs_hl_head[i]); |
| |
| edev->ndev->rx_cpu_rmap = alloc_irq_cpu_rmap(QEDE_RSS_COUNT(edev)); |
| if (!edev->ndev->rx_cpu_rmap) { |
| vfree(edev->arfs); |
| edev->arfs = NULL; |
| return -ENOMEM; |
| } |
| |
| edev->arfs->arfs_fltr_bmap = vzalloc(BITS_TO_LONGS(QEDE_RFS_MAX_FLTR) * |
| sizeof(long)); |
| if (!edev->arfs->arfs_fltr_bmap) { |
| free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap); |
| edev->ndev->rx_cpu_rmap = NULL; |
| vfree(edev->arfs); |
| edev->arfs = NULL; |
| return -ENOMEM; |
| } |
| |
| return 0; |
| } |
| |
| void qede_free_arfs(struct qede_dev *edev) |
| { |
| if (!edev->arfs) |
| return; |
| |
| if (edev->ndev->rx_cpu_rmap) |
| free_irq_cpu_rmap(edev->ndev->rx_cpu_rmap); |
| |
| edev->ndev->rx_cpu_rmap = NULL; |
| vfree(edev->arfs->arfs_fltr_bmap); |
| edev->arfs->arfs_fltr_bmap = NULL; |
| vfree(edev->arfs); |
| edev->arfs = NULL; |
| } |
| |
| static bool qede_compare_ip_addr(struct qede_arfs_fltr_node *tpos, |
| const struct sk_buff *skb) |
| { |
| if (skb->protocol == htons(ETH_P_IP)) { |
| if (tpos->tuple.src_ipv4 == ip_hdr(skb)->saddr && |
| tpos->tuple.dst_ipv4 == ip_hdr(skb)->daddr) |
| return true; |
| else |
| return false; |
| } else { |
| struct in6_addr *src = &tpos->tuple.src_ipv6; |
| u8 size = sizeof(struct in6_addr); |
| |
| if (!memcmp(src, &ipv6_hdr(skb)->saddr, size) && |
| !memcmp(&tpos->tuple.dst_ipv6, &ipv6_hdr(skb)->daddr, size)) |
| return true; |
| else |
| return false; |
| } |
| } |
| |
| static struct qede_arfs_fltr_node * |
| qede_arfs_htbl_key_search(struct hlist_head *h, const struct sk_buff *skb, |
| __be16 src_port, __be16 dst_port, u8 ip_proto) |
| { |
| struct qede_arfs_fltr_node *tpos; |
| |
| hlist_for_each_entry(tpos, h, node) |
| if (tpos->tuple.ip_proto == ip_proto && |
| tpos->tuple.eth_proto == skb->protocol && |
| qede_compare_ip_addr(tpos, skb) && |
| tpos->tuple.src_port == src_port && |
| tpos->tuple.dst_port == dst_port) |
| return tpos; |
| |
| return NULL; |
| } |
| |
| static struct qede_arfs_fltr_node * |
| qede_alloc_filter(struct qede_dev *edev, int min_hlen) |
| { |
| struct qede_arfs_fltr_node *n; |
| int bit_id; |
| |
| bit_id = find_first_zero_bit(edev->arfs->arfs_fltr_bmap, |
| QEDE_RFS_MAX_FLTR); |
| |
| if (bit_id >= QEDE_RFS_MAX_FLTR) |
| return NULL; |
| |
| n = kzalloc(sizeof(*n), GFP_ATOMIC); |
| if (!n) |
| return NULL; |
| |
| n->data = kzalloc(min_hlen, GFP_ATOMIC); |
| if (!n->data) { |
| kfree(n); |
| return NULL; |
| } |
| |
| n->sw_id = (u16)bit_id; |
| set_bit(bit_id, edev->arfs->arfs_fltr_bmap); |
| return n; |
| } |
| |
| int qede_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, |
| u16 rxq_index, u32 flow_id) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| struct qede_arfs_fltr_node *n; |
| int min_hlen, rc, tp_offset; |
| struct ethhdr *eth; |
| __be16 *ports; |
| u16 tbl_idx; |
| u8 ip_proto; |
| |
| if (skb->encapsulation) |
| return -EPROTONOSUPPORT; |
| |
| if (skb->protocol != htons(ETH_P_IP) && |
| skb->protocol != htons(ETH_P_IPV6)) |
| return -EPROTONOSUPPORT; |
| |
| if (skb->protocol == htons(ETH_P_IP)) { |
| ip_proto = ip_hdr(skb)->protocol; |
| tp_offset = sizeof(struct iphdr); |
| } else { |
| ip_proto = ipv6_hdr(skb)->nexthdr; |
| tp_offset = sizeof(struct ipv6hdr); |
| } |
| |
| if (ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) |
| return -EPROTONOSUPPORT; |
| |
| ports = (__be16 *)(skb->data + tp_offset); |
| tbl_idx = skb_get_hash_raw(skb) & QEDE_RFS_FLW_MASK; |
| |
| spin_lock_bh(&edev->arfs->arfs_list_lock); |
| |
| n = qede_arfs_htbl_key_search(&edev->arfs->arfs_hl_head[tbl_idx], |
| skb, ports[0], ports[1], ip_proto); |
| |
| if (n) { |
| /* Filter match */ |
| n->next_rxq_id = rxq_index; |
| |
| if (test_bit(QEDE_FLTR_VALID, &n->state)) { |
| if (n->rxq_id != rxq_index) |
| qede_configure_arfs_fltr(edev, n, n->rxq_id, |
| false); |
| } else { |
| if (!n->used) { |
| n->rxq_id = rxq_index; |
| qede_configure_arfs_fltr(edev, n, n->rxq_id, |
| true); |
| } |
| } |
| |
| rc = n->sw_id; |
| goto ret_unlock; |
| } |
| |
| min_hlen = ETH_HLEN + skb_headlen(skb); |
| |
| n = qede_alloc_filter(edev, min_hlen); |
| if (!n) { |
| rc = -ENOMEM; |
| goto ret_unlock; |
| } |
| |
| n->buf_len = min_hlen; |
| n->rxq_id = rxq_index; |
| n->next_rxq_id = rxq_index; |
| n->tuple.src_port = ports[0]; |
| n->tuple.dst_port = ports[1]; |
| n->flow_id = flow_id; |
| |
| if (skb->protocol == htons(ETH_P_IP)) { |
| n->tuple.src_ipv4 = ip_hdr(skb)->saddr; |
| n->tuple.dst_ipv4 = ip_hdr(skb)->daddr; |
| } else { |
| memcpy(&n->tuple.src_ipv6, &ipv6_hdr(skb)->saddr, |
| sizeof(struct in6_addr)); |
| memcpy(&n->tuple.dst_ipv6, &ipv6_hdr(skb)->daddr, |
| sizeof(struct in6_addr)); |
| } |
| |
| eth = (struct ethhdr *)n->data; |
| eth->h_proto = skb->protocol; |
| n->tuple.eth_proto = skb->protocol; |
| n->tuple.ip_proto = ip_proto; |
| memcpy(n->data + ETH_HLEN, skb->data, skb_headlen(skb)); |
| |
| n->mapping = dma_map_single(&edev->pdev->dev, n->data, |
| n->buf_len, DMA_TO_DEVICE); |
| if (dma_mapping_error(&edev->pdev->dev, n->mapping)) { |
| DP_NOTICE(edev, "Failed to map DMA memory for arfs\n"); |
| qede_free_arfs_filter(edev, n); |
| rc = -ENOMEM; |
| goto ret_unlock; |
| } |
| |
| INIT_HLIST_NODE(&n->node); |
| hlist_add_head(&n->node, &edev->arfs->arfs_hl_head[tbl_idx]); |
| edev->arfs->filter_count++; |
| |
| if (edev->arfs->filter_count == 1 && !edev->arfs->enable) { |
| edev->ops->configure_arfs_searcher(edev->cdev, true); |
| edev->arfs->enable = true; |
| } |
| |
| qede_configure_arfs_fltr(edev, n, n->rxq_id, true); |
| |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| |
| set_bit(QEDE_SP_ARFS_CONFIG, &edev->sp_flags); |
| schedule_delayed_work(&edev->sp_task, 0); |
| return n->sw_id; |
| |
| ret_unlock: |
| spin_unlock_bh(&edev->arfs->arfs_list_lock); |
| return rc; |
| } |
| #endif |
| |
| void qede_udp_ports_update(void *dev, u16 vxlan_port, u16 geneve_port) |
| { |
| struct qede_dev *edev = dev; |
| |
| if (edev->vxlan_dst_port != vxlan_port) |
| edev->vxlan_dst_port = 0; |
| |
| if (edev->geneve_dst_port != geneve_port) |
| edev->geneve_dst_port = 0; |
| } |
| |
| void qede_force_mac(void *dev, u8 *mac, bool forced) |
| { |
| struct qede_dev *edev = dev; |
| |
| /* MAC hints take effect only if we haven't set one already */ |
| if (is_valid_ether_addr(edev->ndev->dev_addr) && !forced) |
| return; |
| |
| ether_addr_copy(edev->ndev->dev_addr, mac); |
| ether_addr_copy(edev->primary_mac, mac); |
| } |
| |
| void qede_fill_rss_params(struct qede_dev *edev, |
| struct qed_update_vport_rss_params *rss, u8 *update) |
| { |
| bool need_reset = false; |
| int i; |
| |
| if (QEDE_RSS_COUNT(edev) <= 1) { |
| memset(rss, 0, sizeof(*rss)); |
| *update = 0; |
| return; |
| } |
| |
| /* Need to validate current RSS config uses valid entries */ |
| for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++) { |
| if (edev->rss_ind_table[i] >= QEDE_RSS_COUNT(edev)) { |
| need_reset = true; |
| break; |
| } |
| } |
| |
| if (!(edev->rss_params_inited & QEDE_RSS_INDIR_INITED) || need_reset) { |
| for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++) { |
| u16 indir_val, val; |
| |
| val = QEDE_RSS_COUNT(edev); |
| indir_val = ethtool_rxfh_indir_default(i, val); |
| edev->rss_ind_table[i] = indir_val; |
| } |
| edev->rss_params_inited |= QEDE_RSS_INDIR_INITED; |
| } |
| |
| /* Now that we have the queue-indirection, prepare the handles */ |
| for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++) { |
| u16 idx = QEDE_RX_QUEUE_IDX(edev, edev->rss_ind_table[i]); |
| |
| rss->rss_ind_table[i] = edev->fp_array[idx].rxq->handle; |
| } |
| |
| if (!(edev->rss_params_inited & QEDE_RSS_KEY_INITED)) { |
| netdev_rss_key_fill(edev->rss_key, sizeof(edev->rss_key)); |
| edev->rss_params_inited |= QEDE_RSS_KEY_INITED; |
| } |
| memcpy(rss->rss_key, edev->rss_key, sizeof(rss->rss_key)); |
| |
| if (!(edev->rss_params_inited & QEDE_RSS_CAPS_INITED)) { |
| edev->rss_caps = QED_RSS_IPV4 | QED_RSS_IPV6 | |
| QED_RSS_IPV4_TCP | QED_RSS_IPV6_TCP; |
| edev->rss_params_inited |= QEDE_RSS_CAPS_INITED; |
| } |
| rss->rss_caps = edev->rss_caps; |
| |
| *update = 1; |
| } |
| |
| static int qede_set_ucast_rx_mac(struct qede_dev *edev, |
| enum qed_filter_xcast_params_type opcode, |
| unsigned char mac[ETH_ALEN]) |
| { |
| struct qed_filter_params filter_cmd; |
| |
| memset(&filter_cmd, 0, sizeof(filter_cmd)); |
| filter_cmd.type = QED_FILTER_TYPE_UCAST; |
| filter_cmd.filter.ucast.type = opcode; |
| filter_cmd.filter.ucast.mac_valid = 1; |
| ether_addr_copy(filter_cmd.filter.ucast.mac, mac); |
| |
| return edev->ops->filter_config(edev->cdev, &filter_cmd); |
| } |
| |
| static int qede_set_ucast_rx_vlan(struct qede_dev *edev, |
| enum qed_filter_xcast_params_type opcode, |
| u16 vid) |
| { |
| struct qed_filter_params filter_cmd; |
| |
| memset(&filter_cmd, 0, sizeof(filter_cmd)); |
| filter_cmd.type = QED_FILTER_TYPE_UCAST; |
| filter_cmd.filter.ucast.type = opcode; |
| filter_cmd.filter.ucast.vlan_valid = 1; |
| filter_cmd.filter.ucast.vlan = vid; |
| |
| return edev->ops->filter_config(edev->cdev, &filter_cmd); |
| } |
| |
| static int qede_config_accept_any_vlan(struct qede_dev *edev, bool action) |
| { |
| struct qed_update_vport_params *params; |
| int rc; |
| |
| /* Proceed only if action actually needs to be performed */ |
| if (edev->accept_any_vlan == action) |
| return 0; |
| |
| params = vzalloc(sizeof(*params)); |
| if (!params) |
| return -ENOMEM; |
| |
| params->vport_id = 0; |
| params->accept_any_vlan = action; |
| params->update_accept_any_vlan_flg = 1; |
| |
| rc = edev->ops->vport_update(edev->cdev, params); |
| if (rc) { |
| DP_ERR(edev, "Failed to %s accept-any-vlan\n", |
| action ? "enable" : "disable"); |
| } else { |
| DP_INFO(edev, "%s accept-any-vlan\n", |
| action ? "enabled" : "disabled"); |
| edev->accept_any_vlan = action; |
| } |
| |
| vfree(params); |
| return 0; |
| } |
| |
| int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| struct qede_vlan *vlan, *tmp; |
| int rc = 0; |
| |
| DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan 0x%04x\n", vid); |
| |
| vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); |
| if (!vlan) { |
| DP_INFO(edev, "Failed to allocate struct for vlan\n"); |
| return -ENOMEM; |
| } |
| INIT_LIST_HEAD(&vlan->list); |
| vlan->vid = vid; |
| vlan->configured = false; |
| |
| /* Verify vlan isn't already configured */ |
| list_for_each_entry(tmp, &edev->vlan_list, list) { |
| if (tmp->vid == vlan->vid) { |
| DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), |
| "vlan already configured\n"); |
| kfree(vlan); |
| return -EEXIST; |
| } |
| } |
| |
| /* If interface is down, cache this VLAN ID and return */ |
| __qede_lock(edev); |
| if (edev->state != QEDE_STATE_OPEN) { |
| DP_VERBOSE(edev, NETIF_MSG_IFDOWN, |
| "Interface is down, VLAN %d will be configured when interface is up\n", |
| vid); |
| if (vid != 0) |
| edev->non_configured_vlans++; |
| list_add(&vlan->list, &edev->vlan_list); |
| goto out; |
| } |
| |
| /* Check for the filter limit. |
| * Note - vlan0 has a reserved filter and can be added without |
| * worrying about quota |
| */ |
| if ((edev->configured_vlans < edev->dev_info.num_vlan_filters) || |
| (vlan->vid == 0)) { |
| rc = qede_set_ucast_rx_vlan(edev, |
| QED_FILTER_XCAST_TYPE_ADD, |
| vlan->vid); |
| if (rc) { |
| DP_ERR(edev, "Failed to configure VLAN %d\n", |
| vlan->vid); |
| kfree(vlan); |
| goto out; |
| } |
| vlan->configured = true; |
| |
| /* vlan0 filter isn't consuming out of our quota */ |
| if (vlan->vid != 0) |
| edev->configured_vlans++; |
| } else { |
| /* Out of quota; Activate accept-any-VLAN mode */ |
| if (!edev->non_configured_vlans) { |
| rc = qede_config_accept_any_vlan(edev, true); |
| if (rc) { |
| kfree(vlan); |
| goto out; |
| } |
| } |
| |
| edev->non_configured_vlans++; |
| } |
| |
| list_add(&vlan->list, &edev->vlan_list); |
| |
| out: |
| __qede_unlock(edev); |
| return rc; |
| } |
| |
| static void qede_del_vlan_from_list(struct qede_dev *edev, |
| struct qede_vlan *vlan) |
| { |
| /* vlan0 filter isn't consuming out of our quota */ |
| if (vlan->vid != 0) { |
| if (vlan->configured) |
| edev->configured_vlans--; |
| else |
| edev->non_configured_vlans--; |
| } |
| |
| list_del(&vlan->list); |
| kfree(vlan); |
| } |
| |
| int qede_configure_vlan_filters(struct qede_dev *edev) |
| { |
| int rc = 0, real_rc = 0, accept_any_vlan = 0; |
| struct qed_dev_eth_info *dev_info; |
| struct qede_vlan *vlan = NULL; |
| |
| if (list_empty(&edev->vlan_list)) |
| return 0; |
| |
| dev_info = &edev->dev_info; |
| |
| /* Configure non-configured vlans */ |
| list_for_each_entry(vlan, &edev->vlan_list, list) { |
| if (vlan->configured) |
| continue; |
| |
| /* We have used all our credits, now enable accept_any_vlan */ |
| if ((vlan->vid != 0) && |
| (edev->configured_vlans == dev_info->num_vlan_filters)) { |
| accept_any_vlan = 1; |
| continue; |
| } |
| |
| DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan %d\n", vlan->vid); |
| |
| rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_ADD, |
| vlan->vid); |
| if (rc) { |
| DP_ERR(edev, "Failed to configure VLAN %u\n", |
| vlan->vid); |
| real_rc = rc; |
| continue; |
| } |
| |
| vlan->configured = true; |
| /* vlan0 filter doesn't consume our VLAN filter's quota */ |
| if (vlan->vid != 0) { |
| edev->non_configured_vlans--; |
| edev->configured_vlans++; |
| } |
| } |
| |
| /* enable accept_any_vlan mode if we have more VLANs than credits, |
| * or remove accept_any_vlan mode if we've actually removed |
| * a non-configured vlan, and all remaining vlans are truly configured. |
| */ |
| |
| if (accept_any_vlan) |
| rc = qede_config_accept_any_vlan(edev, true); |
| else if (!edev->non_configured_vlans) |
| rc = qede_config_accept_any_vlan(edev, false); |
| |
| if (rc && !real_rc) |
| real_rc = rc; |
| |
| return real_rc; |
| } |
| |
| int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| struct qede_vlan *vlan = NULL; |
| int rc = 0; |
| |
| DP_VERBOSE(edev, NETIF_MSG_IFDOWN, "Removing vlan 0x%04x\n", vid); |
| |
| /* Find whether entry exists */ |
| __qede_lock(edev); |
| list_for_each_entry(vlan, &edev->vlan_list, list) |
| if (vlan->vid == vid) |
| break; |
| |
| if (!vlan || (vlan->vid != vid)) { |
| DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), |
| "Vlan isn't configured\n"); |
| goto out; |
| } |
| |
| if (edev->state != QEDE_STATE_OPEN) { |
| /* As interface is already down, we don't have a VPORT |
| * instance to remove vlan filter. So just update vlan list |
| */ |
| DP_VERBOSE(edev, NETIF_MSG_IFDOWN, |
| "Interface is down, removing VLAN from list only\n"); |
| qede_del_vlan_from_list(edev, vlan); |
| goto out; |
| } |
| |
| /* Remove vlan */ |
| if (vlan->configured) { |
| rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_DEL, |
| vid); |
| if (rc) { |
| DP_ERR(edev, "Failed to remove VLAN %d\n", vid); |
| goto out; |
| } |
| } |
| |
| qede_del_vlan_from_list(edev, vlan); |
| |
| /* We have removed a VLAN - try to see if we can |
| * configure non-configured VLAN from the list. |
| */ |
| rc = qede_configure_vlan_filters(edev); |
| |
| out: |
| __qede_unlock(edev); |
| return rc; |
| } |
| |
| void qede_vlan_mark_nonconfigured(struct qede_dev *edev) |
| { |
| struct qede_vlan *vlan = NULL; |
| |
| if (list_empty(&edev->vlan_list)) |
| return; |
| |
| list_for_each_entry(vlan, &edev->vlan_list, list) { |
| if (!vlan->configured) |
| continue; |
| |
| vlan->configured = false; |
| |
| /* vlan0 filter isn't consuming out of our quota */ |
| if (vlan->vid != 0) { |
| edev->non_configured_vlans++; |
| edev->configured_vlans--; |
| } |
| |
| DP_VERBOSE(edev, NETIF_MSG_IFDOWN, |
| "marked vlan %d as non-configured\n", vlan->vid); |
| } |
| |
| edev->accept_any_vlan = false; |
| } |
| |
| static void qede_set_features_reload(struct qede_dev *edev, |
| struct qede_reload_args *args) |
| { |
| edev->ndev->features = args->u.features; |
| } |
| |
| int qede_set_features(struct net_device *dev, netdev_features_t features) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| netdev_features_t changes = features ^ dev->features; |
| bool need_reload = false; |
| |
| /* No action needed if hardware GRO is disabled during driver load */ |
| if (changes & NETIF_F_GRO) { |
| if (dev->features & NETIF_F_GRO) |
| need_reload = !edev->gro_disable; |
| else |
| need_reload = edev->gro_disable; |
| } |
| |
| if (need_reload) { |
| struct qede_reload_args args; |
| |
| args.u.features = features; |
| args.func = &qede_set_features_reload; |
| |
| /* Make sure that we definitely need to reload. |
| * In case of an eBPF attached program, there will be no FW |
| * aggregations, so no need to actually reload. |
| */ |
| __qede_lock(edev); |
| if (edev->xdp_prog) |
| args.func(edev, &args); |
| else |
| qede_reload(edev, &args, true); |
| __qede_unlock(edev); |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| void qede_udp_tunnel_add(struct net_device *dev, struct udp_tunnel_info *ti) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| struct qed_tunn_params tunn_params; |
| u16 t_port = ntohs(ti->port); |
| int rc; |
| |
| memset(&tunn_params, 0, sizeof(tunn_params)); |
| |
| switch (ti->type) { |
| case UDP_TUNNEL_TYPE_VXLAN: |
| if (!edev->dev_info.common.vxlan_enable) |
| return; |
| |
| if (edev->vxlan_dst_port) |
| return; |
| |
| tunn_params.update_vxlan_port = 1; |
| tunn_params.vxlan_port = t_port; |
| |
| __qede_lock(edev); |
| rc = edev->ops->tunn_config(edev->cdev, &tunn_params); |
| __qede_unlock(edev); |
| |
| if (!rc) { |
| edev->vxlan_dst_port = t_port; |
| DP_VERBOSE(edev, QED_MSG_DEBUG, "Added vxlan port=%d\n", |
| t_port); |
| } else { |
| DP_NOTICE(edev, "Failed to add vxlan UDP port=%d\n", |
| t_port); |
| } |
| |
| break; |
| case UDP_TUNNEL_TYPE_GENEVE: |
| if (!edev->dev_info.common.geneve_enable) |
| return; |
| |
| if (edev->geneve_dst_port) |
| return; |
| |
| tunn_params.update_geneve_port = 1; |
| tunn_params.geneve_port = t_port; |
| |
| __qede_lock(edev); |
| rc = edev->ops->tunn_config(edev->cdev, &tunn_params); |
| __qede_unlock(edev); |
| |
| if (!rc) { |
| edev->geneve_dst_port = t_port; |
| DP_VERBOSE(edev, QED_MSG_DEBUG, |
| "Added geneve port=%d\n", t_port); |
| } else { |
| DP_NOTICE(edev, "Failed to add geneve UDP port=%d\n", |
| t_port); |
| } |
| |
| break; |
| default: |
| return; |
| } |
| } |
| |
| void qede_udp_tunnel_del(struct net_device *dev, |
| struct udp_tunnel_info *ti) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| struct qed_tunn_params tunn_params; |
| u16 t_port = ntohs(ti->port); |
| |
| memset(&tunn_params, 0, sizeof(tunn_params)); |
| |
| switch (ti->type) { |
| case UDP_TUNNEL_TYPE_VXLAN: |
| if (t_port != edev->vxlan_dst_port) |
| return; |
| |
| tunn_params.update_vxlan_port = 1; |
| tunn_params.vxlan_port = 0; |
| |
| __qede_lock(edev); |
| edev->ops->tunn_config(edev->cdev, &tunn_params); |
| __qede_unlock(edev); |
| |
| edev->vxlan_dst_port = 0; |
| |
| DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted vxlan port=%d\n", |
| t_port); |
| |
| break; |
| case UDP_TUNNEL_TYPE_GENEVE: |
| if (t_port != edev->geneve_dst_port) |
| return; |
| |
| tunn_params.update_geneve_port = 1; |
| tunn_params.geneve_port = 0; |
| |
| __qede_lock(edev); |
| edev->ops->tunn_config(edev->cdev, &tunn_params); |
| __qede_unlock(edev); |
| |
| edev->geneve_dst_port = 0; |
| |
| DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted geneve port=%d\n", |
| t_port); |
| break; |
| default: |
| return; |
| } |
| } |
| |
| static void qede_xdp_reload_func(struct qede_dev *edev, |
| struct qede_reload_args *args) |
| { |
| struct bpf_prog *old; |
| |
| old = xchg(&edev->xdp_prog, args->u.new_prog); |
| if (old) |
| bpf_prog_put(old); |
| } |
| |
| static int qede_xdp_set(struct qede_dev *edev, struct bpf_prog *prog) |
| { |
| struct qede_reload_args args; |
| |
| /* If we're called, there was already a bpf reference increment */ |
| args.func = &qede_xdp_reload_func; |
| args.u.new_prog = prog; |
| qede_reload(edev, &args, false); |
| |
| return 0; |
| } |
| |
| int qede_xdp(struct net_device *dev, struct netdev_xdp *xdp) |
| { |
| struct qede_dev *edev = netdev_priv(dev); |
| |
| if (IS_VF(edev)) { |
| DP_NOTICE(edev, "VFs don't support XDP\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| switch (xdp->command) { |
| case XDP_SETUP_PROG: |
| return qede_xdp_set(edev, xdp->prog); |
| case XDP_QUERY_PROG: |
| xdp->prog_attached = !!edev->xdp_prog; |
| return 0; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int qede_set_mcast_rx_mac(struct qede_dev *edev, |
| enum qed_filter_xcast_params_type opcode, |
| unsigned char *mac, int num_macs) |
| { |
| struct qed_filter_params filter_cmd; |
| int i; |
| |
| memset(&filter_cmd, 0, sizeof(filter_cmd)); |
| filter_cmd.type = QED_FILTER_TYPE_MCAST; |
| filter_cmd.filter.mcast.type = opcode; |
| filter_cmd.filter.mcast.num = num_macs; |
| |
| for (i = 0; i < num_macs; i++, mac += ETH_ALEN) |
| ether_addr_copy(filter_cmd.filter.mcast.mac[i], mac); |
| |
| return edev->ops->filter_config(edev->cdev, &filter_cmd); |
| } |
| |
| int qede_set_mac_addr(struct net_device *ndev, void *p) |
| { |
| struct qede_dev *edev = netdev_priv(ndev); |
| struct sockaddr *addr = p; |
| int rc; |
| |
| ASSERT_RTNL(); /* @@@TBD To be removed */ |
| |
| DP_INFO(edev, "Set_mac_addr called\n"); |
| |
| if (!is_valid_ether_addr(addr->sa_data)) { |
| DP_NOTICE(edev, "The MAC address is not valid\n"); |
| return -EFAULT; |
| } |
| |
| if (!edev->ops->check_mac(edev->cdev, addr->sa_data)) { |
| DP_NOTICE(edev, "qed prevents setting MAC\n"); |
| return -EINVAL; |
| } |
| |
| ether_addr_copy(ndev->dev_addr, addr->sa_data); |
| |
| if (!netif_running(ndev)) { |
| DP_NOTICE(edev, "The device is currently down\n"); |
| return 0; |
| } |
| |
| /* Remove the previous primary mac */ |
| rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, |
| edev->primary_mac); |
| if (rc) |
| return rc; |
| |
| edev->ops->common->update_mac(edev->cdev, addr->sa_data); |
| |
| /* Add MAC filter according to the new unicast HW MAC address */ |
| ether_addr_copy(edev->primary_mac, ndev->dev_addr); |
| return qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, |
| edev->primary_mac); |
| } |
| |
| static int |
| qede_configure_mcast_filtering(struct net_device *ndev, |
| enum qed_filter_rx_mode_type *accept_flags) |
| { |
| struct qede_dev *edev = netdev_priv(ndev); |
| unsigned char *mc_macs, *temp; |
| struct netdev_hw_addr *ha; |
| int rc = 0, mc_count; |
| size_t size; |
| |
| size = 64 * ETH_ALEN; |
| |
| mc_macs = kzalloc(size, GFP_KERNEL); |
| if (!mc_macs) { |
| DP_NOTICE(edev, |
| "Failed to allocate memory for multicast MACs\n"); |
| rc = -ENOMEM; |
| goto exit; |
| } |
| |
| temp = mc_macs; |
| |
| /* Remove all previously configured MAC filters */ |
| rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, |
| mc_macs, 1); |
| if (rc) |
| goto exit; |
| |
| netif_addr_lock_bh(ndev); |
| |
| mc_count = netdev_mc_count(ndev); |
| if (mc_count < 64) { |
| netdev_for_each_mc_addr(ha, ndev) { |
| ether_addr_copy(temp, ha->addr); |
| temp += ETH_ALEN; |
| } |
| } |
| |
| netif_addr_unlock_bh(ndev); |
| |
| /* Check for all multicast @@@TBD resource allocation */ |
| if ((ndev->flags & IFF_ALLMULTI) || (mc_count > 64)) { |
| if (*accept_flags == QED_FILTER_RX_MODE_TYPE_REGULAR) |
| *accept_flags = QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC; |
| } else { |
| /* Add all multicast MAC filters */ |
| rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, |
| mc_macs, mc_count); |
| } |
| |
| exit: |
| kfree(mc_macs); |
| return rc; |
| } |
| |
| void qede_set_rx_mode(struct net_device *ndev) |
| { |
| struct qede_dev *edev = netdev_priv(ndev); |
| |
| set_bit(QEDE_SP_RX_MODE, &edev->sp_flags); |
| schedule_delayed_work(&edev->sp_task, 0); |
| } |
| |
| /* Must be called with qede_lock held */ |
| void qede_config_rx_mode(struct net_device *ndev) |
| { |
| enum qed_filter_rx_mode_type accept_flags; |
| struct qede_dev *edev = netdev_priv(ndev); |
| struct qed_filter_params rx_mode; |
| unsigned char *uc_macs, *temp; |
| struct netdev_hw_addr *ha; |
| int rc, uc_count; |
| size_t size; |
| |
| netif_addr_lock_bh(ndev); |
| |
| uc_count = netdev_uc_count(ndev); |
| size = uc_count * ETH_ALEN; |
| |
| uc_macs = kzalloc(size, GFP_ATOMIC); |
| if (!uc_macs) { |
| DP_NOTICE(edev, "Failed to allocate memory for unicast MACs\n"); |
| netif_addr_unlock_bh(ndev); |
| return; |
| } |
| |
| temp = uc_macs; |
| netdev_for_each_uc_addr(ha, ndev) { |
| ether_addr_copy(temp, ha->addr); |
| temp += ETH_ALEN; |
| } |
| |
| netif_addr_unlock_bh(ndev); |
| |
| /* Configure the struct for the Rx mode */ |
| memset(&rx_mode, 0, sizeof(struct qed_filter_params)); |
| rx_mode.type = QED_FILTER_TYPE_RX_MODE; |
| |
| /* Remove all previous unicast secondary macs and multicast macs |
| * (configrue / leave the primary mac) |
| */ |
| rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_REPLACE, |
| edev->primary_mac); |
| if (rc) |
| goto out; |
| |
| /* Check for promiscuous */ |
| if (ndev->flags & IFF_PROMISC) |
| accept_flags = QED_FILTER_RX_MODE_TYPE_PROMISC; |
| else |
| accept_flags = QED_FILTER_RX_MODE_TYPE_REGULAR; |
| |
| /* Configure all filters regardless, in case promisc is rejected */ |
| if (uc_count < edev->dev_info.num_mac_filters) { |
| int i; |
| |
| temp = uc_macs; |
| for (i = 0; i < uc_count; i++) { |
| rc = qede_set_ucast_rx_mac(edev, |
| QED_FILTER_XCAST_TYPE_ADD, |
| temp); |
| if (rc) |
| goto out; |
| |
| temp += ETH_ALEN; |
| } |
| } else { |
| accept_flags = QED_FILTER_RX_MODE_TYPE_PROMISC; |
| } |
| |
| rc = qede_configure_mcast_filtering(ndev, &accept_flags); |
| if (rc) |
| goto out; |
| |
| /* take care of VLAN mode */ |
| if (ndev->flags & IFF_PROMISC) { |
| qede_config_accept_any_vlan(edev, true); |
| } else if (!edev->non_configured_vlans) { |
| /* It's possible that accept_any_vlan mode is set due to a |
| * previous setting of IFF_PROMISC. If vlan credits are |
| * sufficient, disable accept_any_vlan. |
| */ |
| qede_config_accept_any_vlan(edev, false); |
| } |
| |
| rx_mode.filter.accept_flags = accept_flags; |
| edev->ops->filter_config(edev->cdev, &rx_mode); |
| out: |
| kfree(uc_macs); |
| } |