| /* Intel Ethernet Switch Host Interface Driver |
| * Copyright(c) 2013 - 2015 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * The full GNU General Public License is included in this distribution in |
| * the file called "COPYING". |
| * |
| * Contact Information: |
| * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| */ |
| |
| #include "fm10k.h" |
| #include <linux/vmalloc.h> |
| #if IS_ENABLED(CONFIG_FM10K_VXLAN) |
| #include <net/vxlan.h> |
| #endif /* CONFIG_FM10K_VXLAN */ |
| |
| /** |
| * fm10k_setup_tx_resources - allocate Tx resources (Descriptors) |
| * @tx_ring: tx descriptor ring (for a specific queue) to setup |
| * |
| * Return 0 on success, negative on failure |
| **/ |
| int fm10k_setup_tx_resources(struct fm10k_ring *tx_ring) |
| { |
| struct device *dev = tx_ring->dev; |
| int size; |
| |
| size = sizeof(struct fm10k_tx_buffer) * tx_ring->count; |
| |
| tx_ring->tx_buffer = vzalloc(size); |
| if (!tx_ring->tx_buffer) |
| goto err; |
| |
| u64_stats_init(&tx_ring->syncp); |
| |
| /* round up to nearest 4K */ |
| tx_ring->size = tx_ring->count * sizeof(struct fm10k_tx_desc); |
| tx_ring->size = ALIGN(tx_ring->size, 4096); |
| |
| tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, |
| &tx_ring->dma, GFP_KERNEL); |
| if (!tx_ring->desc) |
| goto err; |
| |
| return 0; |
| |
| err: |
| vfree(tx_ring->tx_buffer); |
| tx_ring->tx_buffer = NULL; |
| return -ENOMEM; |
| } |
| |
| /** |
| * fm10k_setup_all_tx_resources - allocate all queues Tx resources |
| * @interface: board private structure |
| * |
| * If this function returns with an error, then it's possible one or |
| * more of the rings is populated (while the rest are not). It is the |
| * callers duty to clean those orphaned rings. |
| * |
| * Return 0 on success, negative on failure |
| **/ |
| static int fm10k_setup_all_tx_resources(struct fm10k_intfc *interface) |
| { |
| int i, err = 0; |
| |
| for (i = 0; i < interface->num_tx_queues; i++) { |
| err = fm10k_setup_tx_resources(interface->tx_ring[i]); |
| if (!err) |
| continue; |
| |
| netif_err(interface, probe, interface->netdev, |
| "Allocation for Tx Queue %u failed\n", i); |
| goto err_setup_tx; |
| } |
| |
| return 0; |
| err_setup_tx: |
| /* rewind the index freeing the rings as we go */ |
| while (i--) |
| fm10k_free_tx_resources(interface->tx_ring[i]); |
| return err; |
| } |
| |
| /** |
| * fm10k_setup_rx_resources - allocate Rx resources (Descriptors) |
| * @rx_ring: rx descriptor ring (for a specific queue) to setup |
| * |
| * Returns 0 on success, negative on failure |
| **/ |
| int fm10k_setup_rx_resources(struct fm10k_ring *rx_ring) |
| { |
| struct device *dev = rx_ring->dev; |
| int size; |
| |
| size = sizeof(struct fm10k_rx_buffer) * rx_ring->count; |
| |
| rx_ring->rx_buffer = vzalloc(size); |
| if (!rx_ring->rx_buffer) |
| goto err; |
| |
| u64_stats_init(&rx_ring->syncp); |
| |
| /* Round up to nearest 4K */ |
| rx_ring->size = rx_ring->count * sizeof(union fm10k_rx_desc); |
| rx_ring->size = ALIGN(rx_ring->size, 4096); |
| |
| rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, |
| &rx_ring->dma, GFP_KERNEL); |
| if (!rx_ring->desc) |
| goto err; |
| |
| return 0; |
| err: |
| vfree(rx_ring->rx_buffer); |
| rx_ring->rx_buffer = NULL; |
| return -ENOMEM; |
| } |
| |
| /** |
| * fm10k_setup_all_rx_resources - allocate all queues Rx resources |
| * @interface: board private structure |
| * |
| * If this function returns with an error, then it's possible one or |
| * more of the rings is populated (while the rest are not). It is the |
| * callers duty to clean those orphaned rings. |
| * |
| * Return 0 on success, negative on failure |
| **/ |
| static int fm10k_setup_all_rx_resources(struct fm10k_intfc *interface) |
| { |
| int i, err = 0; |
| |
| for (i = 0; i < interface->num_rx_queues; i++) { |
| err = fm10k_setup_rx_resources(interface->rx_ring[i]); |
| if (!err) |
| continue; |
| |
| netif_err(interface, probe, interface->netdev, |
| "Allocation for Rx Queue %u failed\n", i); |
| goto err_setup_rx; |
| } |
| |
| return 0; |
| err_setup_rx: |
| /* rewind the index freeing the rings as we go */ |
| while (i--) |
| fm10k_free_rx_resources(interface->rx_ring[i]); |
| return err; |
| } |
| |
| void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *ring, |
| struct fm10k_tx_buffer *tx_buffer) |
| { |
| if (tx_buffer->skb) { |
| dev_kfree_skb_any(tx_buffer->skb); |
| if (dma_unmap_len(tx_buffer, len)) |
| dma_unmap_single(ring->dev, |
| dma_unmap_addr(tx_buffer, dma), |
| dma_unmap_len(tx_buffer, len), |
| DMA_TO_DEVICE); |
| } else if (dma_unmap_len(tx_buffer, len)) { |
| dma_unmap_page(ring->dev, |
| dma_unmap_addr(tx_buffer, dma), |
| dma_unmap_len(tx_buffer, len), |
| DMA_TO_DEVICE); |
| } |
| tx_buffer->next_to_watch = NULL; |
| tx_buffer->skb = NULL; |
| dma_unmap_len_set(tx_buffer, len, 0); |
| /* tx_buffer must be completely set up in the transmit path */ |
| } |
| |
| /** |
| * fm10k_clean_tx_ring - Free Tx Buffers |
| * @tx_ring: ring to be cleaned |
| **/ |
| static void fm10k_clean_tx_ring(struct fm10k_ring *tx_ring) |
| { |
| struct fm10k_tx_buffer *tx_buffer; |
| unsigned long size; |
| u16 i; |
| |
| /* ring already cleared, nothing to do */ |
| if (!tx_ring->tx_buffer) |
| return; |
| |
| /* Free all the Tx ring sk_buffs */ |
| for (i = 0; i < tx_ring->count; i++) { |
| tx_buffer = &tx_ring->tx_buffer[i]; |
| fm10k_unmap_and_free_tx_resource(tx_ring, tx_buffer); |
| } |
| |
| /* reset BQL values */ |
| netdev_tx_reset_queue(txring_txq(tx_ring)); |
| |
| size = sizeof(struct fm10k_tx_buffer) * tx_ring->count; |
| memset(tx_ring->tx_buffer, 0, size); |
| |
| /* Zero out the descriptor ring */ |
| memset(tx_ring->desc, 0, tx_ring->size); |
| } |
| |
| /** |
| * fm10k_free_tx_resources - Free Tx Resources per Queue |
| * @tx_ring: Tx descriptor ring for a specific queue |
| * |
| * Free all transmit software resources |
| **/ |
| void fm10k_free_tx_resources(struct fm10k_ring *tx_ring) |
| { |
| fm10k_clean_tx_ring(tx_ring); |
| |
| vfree(tx_ring->tx_buffer); |
| tx_ring->tx_buffer = NULL; |
| |
| /* if not set, then don't free */ |
| if (!tx_ring->desc) |
| return; |
| |
| dma_free_coherent(tx_ring->dev, tx_ring->size, |
| tx_ring->desc, tx_ring->dma); |
| tx_ring->desc = NULL; |
| } |
| |
| /** |
| * fm10k_clean_all_tx_rings - Free Tx Buffers for all queues |
| * @interface: board private structure |
| **/ |
| void fm10k_clean_all_tx_rings(struct fm10k_intfc *interface) |
| { |
| int i; |
| |
| for (i = 0; i < interface->num_tx_queues; i++) |
| fm10k_clean_tx_ring(interface->tx_ring[i]); |
| |
| /* remove any stale timestamp buffers and free them */ |
| skb_queue_purge(&interface->ts_tx_skb_queue); |
| } |
| |
| /** |
| * fm10k_free_all_tx_resources - Free Tx Resources for All Queues |
| * @interface: board private structure |
| * |
| * Free all transmit software resources |
| **/ |
| static void fm10k_free_all_tx_resources(struct fm10k_intfc *interface) |
| { |
| int i = interface->num_tx_queues; |
| |
| while (i--) |
| fm10k_free_tx_resources(interface->tx_ring[i]); |
| } |
| |
| /** |
| * fm10k_clean_rx_ring - Free Rx Buffers per Queue |
| * @rx_ring: ring to free buffers from |
| **/ |
| static void fm10k_clean_rx_ring(struct fm10k_ring *rx_ring) |
| { |
| unsigned long size; |
| u16 i; |
| |
| if (!rx_ring->rx_buffer) |
| return; |
| |
| if (rx_ring->skb) |
| dev_kfree_skb(rx_ring->skb); |
| rx_ring->skb = NULL; |
| |
| /* Free all the Rx ring sk_buffs */ |
| for (i = 0; i < rx_ring->count; i++) { |
| struct fm10k_rx_buffer *buffer = &rx_ring->rx_buffer[i]; |
| /* clean-up will only set page pointer to NULL */ |
| if (!buffer->page) |
| continue; |
| |
| dma_unmap_page(rx_ring->dev, buffer->dma, |
| PAGE_SIZE, DMA_FROM_DEVICE); |
| __free_page(buffer->page); |
| |
| buffer->page = NULL; |
| } |
| |
| size = sizeof(struct fm10k_rx_buffer) * rx_ring->count; |
| memset(rx_ring->rx_buffer, 0, size); |
| |
| /* Zero out the descriptor ring */ |
| memset(rx_ring->desc, 0, rx_ring->size); |
| |
| rx_ring->next_to_alloc = 0; |
| rx_ring->next_to_clean = 0; |
| rx_ring->next_to_use = 0; |
| } |
| |
| /** |
| * fm10k_free_rx_resources - Free Rx Resources |
| * @rx_ring: ring to clean the resources from |
| * |
| * Free all receive software resources |
| **/ |
| void fm10k_free_rx_resources(struct fm10k_ring *rx_ring) |
| { |
| fm10k_clean_rx_ring(rx_ring); |
| |
| vfree(rx_ring->rx_buffer); |
| rx_ring->rx_buffer = NULL; |
| |
| /* if not set, then don't free */ |
| if (!rx_ring->desc) |
| return; |
| |
| dma_free_coherent(rx_ring->dev, rx_ring->size, |
| rx_ring->desc, rx_ring->dma); |
| |
| rx_ring->desc = NULL; |
| } |
| |
| /** |
| * fm10k_clean_all_rx_rings - Free Rx Buffers for all queues |
| * @interface: board private structure |
| **/ |
| void fm10k_clean_all_rx_rings(struct fm10k_intfc *interface) |
| { |
| int i; |
| |
| for (i = 0; i < interface->num_rx_queues; i++) |
| fm10k_clean_rx_ring(interface->rx_ring[i]); |
| } |
| |
| /** |
| * fm10k_free_all_rx_resources - Free Rx Resources for All Queues |
| * @interface: board private structure |
| * |
| * Free all receive software resources |
| **/ |
| static void fm10k_free_all_rx_resources(struct fm10k_intfc *interface) |
| { |
| int i = interface->num_rx_queues; |
| |
| while (i--) |
| fm10k_free_rx_resources(interface->rx_ring[i]); |
| } |
| |
| /** |
| * fm10k_request_glort_range - Request GLORTs for use in configuring rules |
| * @interface: board private structure |
| * |
| * This function allocates a range of glorts for this interface to use. |
| **/ |
| static void fm10k_request_glort_range(struct fm10k_intfc *interface) |
| { |
| struct fm10k_hw *hw = &interface->hw; |
| u16 mask = (~hw->mac.dglort_map) >> FM10K_DGLORTMAP_MASK_SHIFT; |
| |
| /* establish GLORT base */ |
| interface->glort = hw->mac.dglort_map & FM10K_DGLORTMAP_NONE; |
| interface->glort_count = 0; |
| |
| /* nothing we can do until mask is allocated */ |
| if (hw->mac.dglort_map == FM10K_DGLORTMAP_NONE) |
| return; |
| |
| /* we support 3 possible GLORT configurations. |
| * 1: VFs consume all but the last 1 |
| * 2: VFs and PF split glorts with possible gap between |
| * 3: VFs allocated first 64, all others belong to PF |
| */ |
| if (mask <= hw->iov.total_vfs) { |
| interface->glort_count = 1; |
| interface->glort += mask; |
| } else if (mask < 64) { |
| interface->glort_count = (mask + 1) / 2; |
| interface->glort += interface->glort_count; |
| } else { |
| interface->glort_count = mask - 63; |
| interface->glort += 64; |
| } |
| } |
| |
| /** |
| * fm10k_del_vxlan_port_all |
| * @interface: board private structure |
| * |
| * This function frees the entire vxlan_port list |
| **/ |
| static void fm10k_del_vxlan_port_all(struct fm10k_intfc *interface) |
| { |
| struct fm10k_vxlan_port *vxlan_port; |
| |
| /* flush all entries from list */ |
| vxlan_port = list_first_entry_or_null(&interface->vxlan_port, |
| struct fm10k_vxlan_port, list); |
| while (vxlan_port) { |
| list_del(&vxlan_port->list); |
| kfree(vxlan_port); |
| vxlan_port = list_first_entry_or_null(&interface->vxlan_port, |
| struct fm10k_vxlan_port, |
| list); |
| } |
| } |
| |
| /** |
| * fm10k_restore_vxlan_port |
| * @interface: board private structure |
| * |
| * This function restores the value in the tunnel_cfg register after reset |
| **/ |
| static void fm10k_restore_vxlan_port(struct fm10k_intfc *interface) |
| { |
| struct fm10k_hw *hw = &interface->hw; |
| struct fm10k_vxlan_port *vxlan_port; |
| |
| /* only the PF supports configuring tunnels */ |
| if (hw->mac.type != fm10k_mac_pf) |
| return; |
| |
| vxlan_port = list_first_entry_or_null(&interface->vxlan_port, |
| struct fm10k_vxlan_port, list); |
| |
| /* restore tunnel configuration register */ |
| fm10k_write_reg(hw, FM10K_TUNNEL_CFG, |
| (vxlan_port ? ntohs(vxlan_port->port) : 0) | |
| (ETH_P_TEB << FM10K_TUNNEL_CFG_NVGRE_SHIFT)); |
| } |
| |
| /** |
| * fm10k_add_vxlan_port |
| * @netdev: network interface device structure |
| * @sa_family: Address family of new port |
| * @port: port number used for VXLAN |
| * |
| * This funciton is called when a new VXLAN interface has added a new port |
| * number to the range that is currently in use for VXLAN. The new port |
| * number is always added to the tail so that the port number list should |
| * match the order in which the ports were allocated. The head of the list |
| * is always used as the VXLAN port number for offloads. |
| **/ |
| static void fm10k_add_vxlan_port(struct net_device *dev, |
| sa_family_t sa_family, __be16 port) { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_vxlan_port *vxlan_port; |
| |
| /* only the PF supports configuring tunnels */ |
| if (interface->hw.mac.type != fm10k_mac_pf) |
| return; |
| |
| /* existing ports are pulled out so our new entry is always last */ |
| fm10k_vxlan_port_for_each(vxlan_port, interface) { |
| if ((vxlan_port->port == port) && |
| (vxlan_port->sa_family == sa_family)) { |
| list_del(&vxlan_port->list); |
| goto insert_tail; |
| } |
| } |
| |
| /* allocate memory to track ports */ |
| vxlan_port = kmalloc(sizeof(*vxlan_port), GFP_ATOMIC); |
| if (!vxlan_port) |
| return; |
| vxlan_port->port = port; |
| vxlan_port->sa_family = sa_family; |
| |
| insert_tail: |
| /* add new port value to list */ |
| list_add_tail(&vxlan_port->list, &interface->vxlan_port); |
| |
| fm10k_restore_vxlan_port(interface); |
| } |
| |
| /** |
| * fm10k_del_vxlan_port |
| * @netdev: network interface device structure |
| * @sa_family: Address family of freed port |
| * @port: port number used for VXLAN |
| * |
| * This funciton is called when a new VXLAN interface has freed a port |
| * number from the range that is currently in use for VXLAN. The freed |
| * port is removed from the list and the new head is used to determine |
| * the port number for offloads. |
| **/ |
| static void fm10k_del_vxlan_port(struct net_device *dev, |
| sa_family_t sa_family, __be16 port) { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_vxlan_port *vxlan_port; |
| |
| if (interface->hw.mac.type != fm10k_mac_pf) |
| return; |
| |
| /* find the port in the list and free it */ |
| fm10k_vxlan_port_for_each(vxlan_port, interface) { |
| if ((vxlan_port->port == port) && |
| (vxlan_port->sa_family == sa_family)) { |
| list_del(&vxlan_port->list); |
| kfree(vxlan_port); |
| break; |
| } |
| } |
| |
| fm10k_restore_vxlan_port(interface); |
| } |
| |
| /** |
| * fm10k_open - Called when a network interface is made active |
| * @netdev: network interface device structure |
| * |
| * Returns 0 on success, negative value on failure |
| * |
| * The open entry point is called when a network interface is made |
| * active by the system (IFF_UP). At this point all resources needed |
| * for transmit and receive operations are allocated, the interrupt |
| * handler is registered with the OS, the watchdog timer is started, |
| * and the stack is notified that the interface is ready. |
| **/ |
| int fm10k_open(struct net_device *netdev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| int err; |
| |
| /* allocate transmit descriptors */ |
| err = fm10k_setup_all_tx_resources(interface); |
| if (err) |
| goto err_setup_tx; |
| |
| /* allocate receive descriptors */ |
| err = fm10k_setup_all_rx_resources(interface); |
| if (err) |
| goto err_setup_rx; |
| |
| /* allocate interrupt resources */ |
| err = fm10k_qv_request_irq(interface); |
| if (err) |
| goto err_req_irq; |
| |
| /* setup GLORT assignment for this port */ |
| fm10k_request_glort_range(interface); |
| |
| /* Notify the stack of the actual queue counts */ |
| err = netif_set_real_num_tx_queues(netdev, |
| interface->num_tx_queues); |
| if (err) |
| goto err_set_queues; |
| |
| err = netif_set_real_num_rx_queues(netdev, |
| interface->num_rx_queues); |
| if (err) |
| goto err_set_queues; |
| |
| #if IS_ENABLED(CONFIG_FM10K_VXLAN) |
| /* update VXLAN port configuration */ |
| vxlan_get_rx_port(netdev); |
| |
| #endif |
| fm10k_up(interface); |
| |
| return 0; |
| |
| err_set_queues: |
| fm10k_qv_free_irq(interface); |
| err_req_irq: |
| fm10k_free_all_rx_resources(interface); |
| err_setup_rx: |
| fm10k_free_all_tx_resources(interface); |
| err_setup_tx: |
| return err; |
| } |
| |
| /** |
| * fm10k_close - Disables a network interface |
| * @netdev: network interface device structure |
| * |
| * Returns 0, this is not allowed to fail |
| * |
| * The close entry point is called when an interface is de-activated |
| * by the OS. The hardware is still under the drivers control, but |
| * needs to be disabled. A global MAC reset is issued to stop the |
| * hardware, and all transmit and receive resources are freed. |
| **/ |
| int fm10k_close(struct net_device *netdev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| |
| fm10k_down(interface); |
| |
| fm10k_qv_free_irq(interface); |
| |
| fm10k_del_vxlan_port_all(interface); |
| |
| fm10k_free_all_tx_resources(interface); |
| fm10k_free_all_rx_resources(interface); |
| |
| return 0; |
| } |
| |
| static netdev_tx_t fm10k_xmit_frame(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| unsigned int r_idx = skb->queue_mapping; |
| int err; |
| |
| if ((skb->protocol == htons(ETH_P_8021Q)) && |
| !skb_vlan_tag_present(skb)) { |
| /* FM10K only supports hardware tagging, any tags in frame |
| * are considered 2nd level or "outer" tags |
| */ |
| struct vlan_hdr *vhdr; |
| __be16 proto; |
| |
| /* make sure skb is not shared */ |
| skb = skb_share_check(skb, GFP_ATOMIC); |
| if (!skb) |
| return NETDEV_TX_OK; |
| |
| /* make sure there is enough room to move the ethernet header */ |
| if (unlikely(!pskb_may_pull(skb, VLAN_ETH_HLEN))) |
| return NETDEV_TX_OK; |
| |
| /* verify the skb head is not shared */ |
| err = skb_cow_head(skb, 0); |
| if (err) |
| return NETDEV_TX_OK; |
| |
| /* locate vlan header */ |
| vhdr = (struct vlan_hdr *)(skb->data + ETH_HLEN); |
| |
| /* pull the 2 key pieces of data out of it */ |
| __vlan_hwaccel_put_tag(skb, |
| htons(ETH_P_8021Q), |
| ntohs(vhdr->h_vlan_TCI)); |
| proto = vhdr->h_vlan_encapsulated_proto; |
| skb->protocol = (ntohs(proto) >= 1536) ? proto : |
| htons(ETH_P_802_2); |
| |
| /* squash it by moving the ethernet addresses up 4 bytes */ |
| memmove(skb->data + VLAN_HLEN, skb->data, 12); |
| __skb_pull(skb, VLAN_HLEN); |
| skb_reset_mac_header(skb); |
| } |
| |
| /* The minimum packet size for a single buffer is 17B so pad the skb |
| * in order to meet this minimum size requirement. |
| */ |
| if (unlikely(skb->len < 17)) { |
| int pad_len = 17 - skb->len; |
| |
| if (skb_pad(skb, pad_len)) |
| return NETDEV_TX_OK; |
| __skb_put(skb, pad_len); |
| } |
| |
| /* prepare packet for hardware time stamping */ |
| if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) |
| fm10k_ts_tx_enqueue(interface, skb); |
| |
| if (r_idx >= interface->num_tx_queues) |
| r_idx %= interface->num_tx_queues; |
| |
| err = fm10k_xmit_frame_ring(skb, interface->tx_ring[r_idx]); |
| |
| return err; |
| } |
| |
| static int fm10k_change_mtu(struct net_device *dev, int new_mtu) |
| { |
| if (new_mtu < 68 || new_mtu > FM10K_MAX_JUMBO_FRAME_SIZE) |
| return -EINVAL; |
| |
| dev->mtu = new_mtu; |
| |
| return 0; |
| } |
| |
| /** |
| * fm10k_tx_timeout - Respond to a Tx Hang |
| * @netdev: network interface device structure |
| **/ |
| static void fm10k_tx_timeout(struct net_device *netdev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| bool real_tx_hang = false; |
| int i; |
| |
| #define TX_TIMEO_LIMIT 16000 |
| for (i = 0; i < interface->num_tx_queues; i++) { |
| struct fm10k_ring *tx_ring = interface->tx_ring[i]; |
| |
| if (check_for_tx_hang(tx_ring) && fm10k_check_tx_hang(tx_ring)) |
| real_tx_hang = true; |
| } |
| |
| if (real_tx_hang) { |
| fm10k_tx_timeout_reset(interface); |
| } else { |
| netif_info(interface, drv, netdev, |
| "Fake Tx hang detected with timeout of %d seconds\n", |
| netdev->watchdog_timeo/HZ); |
| |
| /* fake Tx hang - increase the kernel timeout */ |
| if (netdev->watchdog_timeo < TX_TIMEO_LIMIT) |
| netdev->watchdog_timeo *= 2; |
| } |
| } |
| |
| static int fm10k_uc_vlan_unsync(struct net_device *netdev, |
| const unsigned char *uc_addr) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| struct fm10k_hw *hw = &interface->hw; |
| u16 glort = interface->glort; |
| u16 vid = interface->vid; |
| bool set = !!(vid / VLAN_N_VID); |
| int err; |
| |
| /* drop any leading bits on the VLAN ID */ |
| vid &= VLAN_N_VID - 1; |
| |
| err = hw->mac.ops.update_uc_addr(hw, glort, uc_addr, vid, set, 0); |
| if (err) |
| return err; |
| |
| /* return non-zero value as we are only doing a partial sync/unsync */ |
| return 1; |
| } |
| |
| static int fm10k_mc_vlan_unsync(struct net_device *netdev, |
| const unsigned char *mc_addr) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| struct fm10k_hw *hw = &interface->hw; |
| u16 glort = interface->glort; |
| u16 vid = interface->vid; |
| bool set = !!(vid / VLAN_N_VID); |
| int err; |
| |
| /* drop any leading bits on the VLAN ID */ |
| vid &= VLAN_N_VID - 1; |
| |
| err = hw->mac.ops.update_mc_addr(hw, glort, mc_addr, vid, set); |
| if (err) |
| return err; |
| |
| /* return non-zero value as we are only doing a partial sync/unsync */ |
| return 1; |
| } |
| |
| static int fm10k_update_vid(struct net_device *netdev, u16 vid, bool set) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| struct fm10k_hw *hw = &interface->hw; |
| s32 err; |
| |
| /* updates do not apply to VLAN 0 */ |
| if (!vid) |
| return 0; |
| |
| if (vid >= VLAN_N_VID) |
| return -EINVAL; |
| |
| /* Verify we have permission to add VLANs */ |
| if (hw->mac.vlan_override) |
| return -EACCES; |
| |
| /* update active_vlans bitmask */ |
| set_bit(vid, interface->active_vlans); |
| if (!set) |
| clear_bit(vid, interface->active_vlans); |
| |
| /* if default VLAN is already present do nothing */ |
| if (vid == hw->mac.default_vid) |
| return 0; |
| |
| fm10k_mbx_lock(interface); |
| |
| /* only need to update the VLAN if not in promiscuous mode */ |
| if (!(netdev->flags & IFF_PROMISC)) { |
| err = hw->mac.ops.update_vlan(hw, vid, 0, set); |
| if (err) |
| goto err_out; |
| } |
| |
| /* update our base MAC address */ |
| err = hw->mac.ops.update_uc_addr(hw, interface->glort, hw->mac.addr, |
| vid, set, 0); |
| if (err) |
| goto err_out; |
| |
| /* set vid prior to syncing/unsyncing the VLAN */ |
| interface->vid = vid + (set ? VLAN_N_VID : 0); |
| |
| /* Update the unicast and multicast address list to add/drop VLAN */ |
| __dev_uc_unsync(netdev, fm10k_uc_vlan_unsync); |
| __dev_mc_unsync(netdev, fm10k_mc_vlan_unsync); |
| |
| err_out: |
| fm10k_mbx_unlock(interface); |
| |
| return err; |
| } |
| |
| static int fm10k_vlan_rx_add_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| /* update VLAN and address table based on changes */ |
| return fm10k_update_vid(netdev, vid, true); |
| } |
| |
| static int fm10k_vlan_rx_kill_vid(struct net_device *netdev, |
| __always_unused __be16 proto, u16 vid) |
| { |
| /* update VLAN and address table based on changes */ |
| return fm10k_update_vid(netdev, vid, false); |
| } |
| |
| static u16 fm10k_find_next_vlan(struct fm10k_intfc *interface, u16 vid) |
| { |
| struct fm10k_hw *hw = &interface->hw; |
| u16 default_vid = hw->mac.default_vid; |
| u16 vid_limit = vid < default_vid ? default_vid : VLAN_N_VID; |
| |
| vid = find_next_bit(interface->active_vlans, vid_limit, ++vid); |
| |
| return vid; |
| } |
| |
| static void fm10k_clear_unused_vlans(struct fm10k_intfc *interface) |
| { |
| struct fm10k_hw *hw = &interface->hw; |
| u32 vid, prev_vid; |
| |
| /* loop through and find any gaps in the table */ |
| for (vid = 0, prev_vid = 0; |
| prev_vid < VLAN_N_VID; |
| prev_vid = vid + 1, vid = fm10k_find_next_vlan(interface, vid)) { |
| if (prev_vid == vid) |
| continue; |
| |
| /* send request to clear multiple bits at a time */ |
| prev_vid += (vid - prev_vid - 1) << FM10K_VLAN_LENGTH_SHIFT; |
| hw->mac.ops.update_vlan(hw, prev_vid, 0, false); |
| } |
| } |
| |
| static int __fm10k_uc_sync(struct net_device *dev, |
| const unsigned char *addr, bool sync) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_hw *hw = &interface->hw; |
| u16 vid, glort = interface->glort; |
| s32 err; |
| |
| if (!is_valid_ether_addr(addr)) |
| return -EADDRNOTAVAIL; |
| |
| /* update table with current entries */ |
| for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0; |
| vid < VLAN_N_VID; |
| vid = fm10k_find_next_vlan(interface, vid)) { |
| err = hw->mac.ops.update_uc_addr(hw, glort, addr, |
| vid, sync, 0); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int fm10k_uc_sync(struct net_device *dev, |
| const unsigned char *addr) |
| { |
| return __fm10k_uc_sync(dev, addr, true); |
| } |
| |
| static int fm10k_uc_unsync(struct net_device *dev, |
| const unsigned char *addr) |
| { |
| return __fm10k_uc_sync(dev, addr, false); |
| } |
| |
| static int fm10k_set_mac(struct net_device *dev, void *p) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_hw *hw = &interface->hw; |
| struct sockaddr *addr = p; |
| s32 err = 0; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| if (dev->flags & IFF_UP) { |
| /* setting MAC address requires mailbox */ |
| fm10k_mbx_lock(interface); |
| |
| err = fm10k_uc_sync(dev, addr->sa_data); |
| if (!err) |
| fm10k_uc_unsync(dev, hw->mac.addr); |
| |
| fm10k_mbx_unlock(interface); |
| } |
| |
| if (!err) { |
| ether_addr_copy(dev->dev_addr, addr->sa_data); |
| ether_addr_copy(hw->mac.addr, addr->sa_data); |
| dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
| } |
| |
| /* if we had a mailbox error suggest trying again */ |
| return err ? -EAGAIN : 0; |
| } |
| |
| static int __fm10k_mc_sync(struct net_device *dev, |
| const unsigned char *addr, bool sync) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_hw *hw = &interface->hw; |
| u16 vid, glort = interface->glort; |
| |
| /* update table with current entries */ |
| for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0; |
| vid < VLAN_N_VID; |
| vid = fm10k_find_next_vlan(interface, vid)) { |
| hw->mac.ops.update_mc_addr(hw, glort, addr, vid, sync); |
| } |
| |
| return 0; |
| } |
| |
| static int fm10k_mc_sync(struct net_device *dev, |
| const unsigned char *addr) |
| { |
| return __fm10k_mc_sync(dev, addr, true); |
| } |
| |
| static int fm10k_mc_unsync(struct net_device *dev, |
| const unsigned char *addr) |
| { |
| return __fm10k_mc_sync(dev, addr, false); |
| } |
| |
| static void fm10k_set_rx_mode(struct net_device *dev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_hw *hw = &interface->hw; |
| int xcast_mode; |
| |
| /* no need to update the harwdare if we are not running */ |
| if (!(dev->flags & IFF_UP)) |
| return; |
| |
| /* determine new mode based on flags */ |
| xcast_mode = (dev->flags & IFF_PROMISC) ? FM10K_XCAST_MODE_PROMISC : |
| (dev->flags & IFF_ALLMULTI) ? FM10K_XCAST_MODE_ALLMULTI : |
| (dev->flags & (IFF_BROADCAST | IFF_MULTICAST)) ? |
| FM10K_XCAST_MODE_MULTI : FM10K_XCAST_MODE_NONE; |
| |
| fm10k_mbx_lock(interface); |
| |
| /* update xcast mode first, but only if it changed */ |
| if (interface->xcast_mode != xcast_mode) { |
| /* update VLAN table */ |
| if (xcast_mode == FM10K_XCAST_MODE_PROMISC) |
| hw->mac.ops.update_vlan(hw, FM10K_VLAN_ALL, 0, true); |
| if (interface->xcast_mode == FM10K_XCAST_MODE_PROMISC) |
| fm10k_clear_unused_vlans(interface); |
| |
| /* update xcast mode */ |
| hw->mac.ops.update_xcast_mode(hw, interface->glort, xcast_mode); |
| |
| /* record updated xcast mode state */ |
| interface->xcast_mode = xcast_mode; |
| } |
| |
| /* synchronize all of the addresses */ |
| if (xcast_mode != FM10K_XCAST_MODE_PROMISC) { |
| __dev_uc_sync(dev, fm10k_uc_sync, fm10k_uc_unsync); |
| if (xcast_mode != FM10K_XCAST_MODE_ALLMULTI) |
| __dev_mc_sync(dev, fm10k_mc_sync, fm10k_mc_unsync); |
| } |
| |
| fm10k_mbx_unlock(interface); |
| } |
| |
| void fm10k_restore_rx_state(struct fm10k_intfc *interface) |
| { |
| struct net_device *netdev = interface->netdev; |
| struct fm10k_hw *hw = &interface->hw; |
| int xcast_mode; |
| u16 vid, glort; |
| |
| /* restore our address if perm_addr is set */ |
| if (hw->mac.type == fm10k_mac_vf) { |
| if (is_valid_ether_addr(hw->mac.perm_addr)) { |
| ether_addr_copy(hw->mac.addr, hw->mac.perm_addr); |
| ether_addr_copy(netdev->perm_addr, hw->mac.perm_addr); |
| ether_addr_copy(netdev->dev_addr, hw->mac.perm_addr); |
| netdev->addr_assign_type &= ~NET_ADDR_RANDOM; |
| } |
| |
| if (hw->mac.vlan_override) |
| netdev->features &= ~NETIF_F_HW_VLAN_CTAG_RX; |
| else |
| netdev->features |= NETIF_F_HW_VLAN_CTAG_RX; |
| } |
| |
| /* record glort for this interface */ |
| glort = interface->glort; |
| |
| /* convert interface flags to xcast mode */ |
| if (netdev->flags & IFF_PROMISC) |
| xcast_mode = FM10K_XCAST_MODE_PROMISC; |
| else if (netdev->flags & IFF_ALLMULTI) |
| xcast_mode = FM10K_XCAST_MODE_ALLMULTI; |
| else if (netdev->flags & (IFF_BROADCAST | IFF_MULTICAST)) |
| xcast_mode = FM10K_XCAST_MODE_MULTI; |
| else |
| xcast_mode = FM10K_XCAST_MODE_NONE; |
| |
| fm10k_mbx_lock(interface); |
| |
| /* Enable logical port */ |
| hw->mac.ops.update_lport_state(hw, glort, interface->glort_count, true); |
| |
| /* update VLAN table */ |
| hw->mac.ops.update_vlan(hw, FM10K_VLAN_ALL, 0, |
| xcast_mode == FM10K_XCAST_MODE_PROMISC); |
| |
| /* Add filter for VLAN 0 */ |
| hw->mac.ops.update_vlan(hw, 0, 0, true); |
| |
| /* update table with current entries */ |
| for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0; |
| vid < VLAN_N_VID; |
| vid = fm10k_find_next_vlan(interface, vid)) { |
| hw->mac.ops.update_vlan(hw, vid, 0, true); |
| hw->mac.ops.update_uc_addr(hw, glort, hw->mac.addr, |
| vid, true, 0); |
| } |
| |
| /* update xcast mode before syncronizing addresses */ |
| hw->mac.ops.update_xcast_mode(hw, glort, xcast_mode); |
| |
| /* synchronize all of the addresses */ |
| if (xcast_mode != FM10K_XCAST_MODE_PROMISC) { |
| __dev_uc_sync(netdev, fm10k_uc_sync, fm10k_uc_unsync); |
| if (xcast_mode != FM10K_XCAST_MODE_ALLMULTI) |
| __dev_mc_sync(netdev, fm10k_mc_sync, fm10k_mc_unsync); |
| } |
| |
| fm10k_mbx_unlock(interface); |
| |
| /* record updated xcast mode state */ |
| interface->xcast_mode = xcast_mode; |
| |
| /* Restore tunnel configuration */ |
| fm10k_restore_vxlan_port(interface); |
| } |
| |
| void fm10k_reset_rx_state(struct fm10k_intfc *interface) |
| { |
| struct net_device *netdev = interface->netdev; |
| struct fm10k_hw *hw = &interface->hw; |
| |
| fm10k_mbx_lock(interface); |
| |
| /* clear the logical port state on lower device */ |
| hw->mac.ops.update_lport_state(hw, interface->glort, |
| interface->glort_count, false); |
| |
| fm10k_mbx_unlock(interface); |
| |
| /* reset flags to default state */ |
| interface->xcast_mode = FM10K_XCAST_MODE_NONE; |
| |
| /* clear the sync flag since the lport has been dropped */ |
| __dev_uc_unsync(netdev, NULL); |
| __dev_mc_unsync(netdev, NULL); |
| } |
| |
| /** |
| * fm10k_get_stats64 - Get System Network Statistics |
| * @netdev: network interface device structure |
| * @stats: storage space for 64bit statistics |
| * |
| * Returns 64bit statistics, for use in the ndo_get_stats64 callback. This |
| * function replaces fm10k_get_stats for kernels which support it. |
| */ |
| static struct rtnl_link_stats64 *fm10k_get_stats64(struct net_device *netdev, |
| struct rtnl_link_stats64 *stats) |
| { |
| struct fm10k_intfc *interface = netdev_priv(netdev); |
| struct fm10k_ring *ring; |
| unsigned int start, i; |
| u64 bytes, packets; |
| |
| rcu_read_lock(); |
| |
| for (i = 0; i < interface->num_rx_queues; i++) { |
| ring = ACCESS_ONCE(interface->rx_ring[i]); |
| |
| if (!ring) |
| continue; |
| |
| do { |
| start = u64_stats_fetch_begin_irq(&ring->syncp); |
| packets = ring->stats.packets; |
| bytes = ring->stats.bytes; |
| } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
| |
| stats->rx_packets += packets; |
| stats->rx_bytes += bytes; |
| } |
| |
| for (i = 0; i < interface->num_tx_queues; i++) { |
| ring = ACCESS_ONCE(interface->tx_ring[i]); |
| |
| if (!ring) |
| continue; |
| |
| do { |
| start = u64_stats_fetch_begin_irq(&ring->syncp); |
| packets = ring->stats.packets; |
| bytes = ring->stats.bytes; |
| } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
| |
| stats->tx_packets += packets; |
| stats->tx_bytes += bytes; |
| } |
| |
| rcu_read_unlock(); |
| |
| /* following stats updated by fm10k_service_task() */ |
| stats->rx_missed_errors = netdev->stats.rx_missed_errors; |
| |
| return stats; |
| } |
| |
| int fm10k_setup_tc(struct net_device *dev, u8 tc) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| |
| /* Currently only the PF supports priority classes */ |
| if (tc && (interface->hw.mac.type != fm10k_mac_pf)) |
| return -EINVAL; |
| |
| /* Hardware supports up to 8 traffic classes */ |
| if (tc > 8) |
| return -EINVAL; |
| |
| /* Hardware has to reinitialize queues to match packet |
| * buffer alignment. Unfortunately, the hardware is not |
| * flexible enough to do this dynamically. |
| */ |
| if (netif_running(dev)) |
| fm10k_close(dev); |
| |
| fm10k_mbx_free_irq(interface); |
| |
| fm10k_clear_queueing_scheme(interface); |
| |
| /* we expect the prio_tc map to be repopulated later */ |
| netdev_reset_tc(dev); |
| netdev_set_num_tc(dev, tc); |
| |
| fm10k_init_queueing_scheme(interface); |
| |
| fm10k_mbx_request_irq(interface); |
| |
| if (netif_running(dev)) |
| fm10k_open(dev); |
| |
| /* flag to indicate SWPRI has yet to be updated */ |
| interface->flags |= FM10K_FLAG_SWPRI_CONFIG; |
| |
| return 0; |
| } |
| |
| static int fm10k_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) |
| { |
| switch (cmd) { |
| case SIOCGHWTSTAMP: |
| return fm10k_get_ts_config(netdev, ifr); |
| case SIOCSHWTSTAMP: |
| return fm10k_set_ts_config(netdev, ifr); |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static void fm10k_assign_l2_accel(struct fm10k_intfc *interface, |
| struct fm10k_l2_accel *l2_accel) |
| { |
| struct fm10k_ring *ring; |
| int i; |
| |
| for (i = 0; i < interface->num_rx_queues; i++) { |
| ring = interface->rx_ring[i]; |
| rcu_assign_pointer(ring->l2_accel, l2_accel); |
| } |
| |
| interface->l2_accel = l2_accel; |
| } |
| |
| static void *fm10k_dfwd_add_station(struct net_device *dev, |
| struct net_device *sdev) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_l2_accel *l2_accel = interface->l2_accel; |
| struct fm10k_l2_accel *old_l2_accel = NULL; |
| struct fm10k_dglort_cfg dglort = { 0 }; |
| struct fm10k_hw *hw = &interface->hw; |
| int size = 0, i; |
| u16 glort; |
| |
| /* allocate l2 accel structure if it is not available */ |
| if (!l2_accel) { |
| /* verify there is enough free GLORTs to support l2_accel */ |
| if (interface->glort_count < 7) |
| return ERR_PTR(-EBUSY); |
| |
| size = offsetof(struct fm10k_l2_accel, macvlan[7]); |
| l2_accel = kzalloc(size, GFP_KERNEL); |
| if (!l2_accel) |
| return ERR_PTR(-ENOMEM); |
| |
| l2_accel->size = 7; |
| l2_accel->dglort = interface->glort; |
| |
| /* update pointers */ |
| fm10k_assign_l2_accel(interface, l2_accel); |
| /* do not expand if we are at our limit */ |
| } else if ((l2_accel->count == FM10K_MAX_STATIONS) || |
| (l2_accel->count == (interface->glort_count - 1))) { |
| return ERR_PTR(-EBUSY); |
| /* expand if we have hit the size limit */ |
| } else if (l2_accel->count == l2_accel->size) { |
| old_l2_accel = l2_accel; |
| size = offsetof(struct fm10k_l2_accel, |
| macvlan[(l2_accel->size * 2) + 1]); |
| l2_accel = kzalloc(size, GFP_KERNEL); |
| if (!l2_accel) |
| return ERR_PTR(-ENOMEM); |
| |
| memcpy(l2_accel, old_l2_accel, |
| offsetof(struct fm10k_l2_accel, |
| macvlan[old_l2_accel->size])); |
| |
| l2_accel->size = (old_l2_accel->size * 2) + 1; |
| |
| /* update pointers */ |
| fm10k_assign_l2_accel(interface, l2_accel); |
| kfree_rcu(old_l2_accel, rcu); |
| } |
| |
| /* add macvlan to accel table, and record GLORT for position */ |
| for (i = 0; i < l2_accel->size; i++) { |
| if (!l2_accel->macvlan[i]) |
| break; |
| } |
| |
| /* record station */ |
| l2_accel->macvlan[i] = sdev; |
| l2_accel->count++; |
| |
| /* configure default DGLORT mapping for RSS/DCB */ |
| dglort.idx = fm10k_dglort_pf_rss; |
| dglort.inner_rss = 1; |
| dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask); |
| dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask); |
| dglort.glort = interface->glort; |
| dglort.shared_l = fls(l2_accel->size); |
| hw->mac.ops.configure_dglort_map(hw, &dglort); |
| |
| /* Add rules for this specific dglort to the switch */ |
| fm10k_mbx_lock(interface); |
| |
| glort = l2_accel->dglort + 1 + i; |
| hw->mac.ops.update_xcast_mode(hw, glort, FM10K_XCAST_MODE_MULTI); |
| hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr, 0, true, 0); |
| |
| fm10k_mbx_unlock(interface); |
| |
| return sdev; |
| } |
| |
| static void fm10k_dfwd_del_station(struct net_device *dev, void *priv) |
| { |
| struct fm10k_intfc *interface = netdev_priv(dev); |
| struct fm10k_l2_accel *l2_accel = ACCESS_ONCE(interface->l2_accel); |
| struct fm10k_dglort_cfg dglort = { 0 }; |
| struct fm10k_hw *hw = &interface->hw; |
| struct net_device *sdev = priv; |
| int i; |
| u16 glort; |
| |
| if (!l2_accel) |
| return; |
| |
| /* search table for matching interface */ |
| for (i = 0; i < l2_accel->size; i++) { |
| if (l2_accel->macvlan[i] == sdev) |
| break; |
| } |
| |
| /* exit if macvlan not found */ |
| if (i == l2_accel->size) |
| return; |
| |
| /* Remove any rules specific to this dglort */ |
| fm10k_mbx_lock(interface); |
| |
| glort = l2_accel->dglort + 1 + i; |
| hw->mac.ops.update_xcast_mode(hw, glort, FM10K_XCAST_MODE_NONE); |
| hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr, 0, false, 0); |
| |
| fm10k_mbx_unlock(interface); |
| |
| /* record removal */ |
| l2_accel->macvlan[i] = NULL; |
| l2_accel->count--; |
| |
| /* configure default DGLORT mapping for RSS/DCB */ |
| dglort.idx = fm10k_dglort_pf_rss; |
| dglort.inner_rss = 1; |
| dglort.rss_l = fls(interface->ring_feature[RING_F_RSS].mask); |
| dglort.pc_l = fls(interface->ring_feature[RING_F_QOS].mask); |
| dglort.glort = interface->glort; |
| dglort.shared_l = fls(l2_accel->size); |
| hw->mac.ops.configure_dglort_map(hw, &dglort); |
| |
| /* If table is empty remove it */ |
| if (l2_accel->count == 0) { |
| fm10k_assign_l2_accel(interface, NULL); |
| kfree_rcu(l2_accel, rcu); |
| } |
| } |
| |
| static netdev_features_t fm10k_features_check(struct sk_buff *skb, |
| struct net_device *dev, |
| netdev_features_t features) |
| { |
| if (!skb->encapsulation || fm10k_tx_encap_offload(skb)) |
| return features; |
| |
| return features & ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); |
| } |
| |
| static const struct net_device_ops fm10k_netdev_ops = { |
| .ndo_open = fm10k_open, |
| .ndo_stop = fm10k_close, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_start_xmit = fm10k_xmit_frame, |
| .ndo_set_mac_address = fm10k_set_mac, |
| .ndo_change_mtu = fm10k_change_mtu, |
| .ndo_tx_timeout = fm10k_tx_timeout, |
| .ndo_vlan_rx_add_vid = fm10k_vlan_rx_add_vid, |
| .ndo_vlan_rx_kill_vid = fm10k_vlan_rx_kill_vid, |
| .ndo_set_rx_mode = fm10k_set_rx_mode, |
| .ndo_get_stats64 = fm10k_get_stats64, |
| .ndo_setup_tc = fm10k_setup_tc, |
| .ndo_set_vf_mac = fm10k_ndo_set_vf_mac, |
| .ndo_set_vf_vlan = fm10k_ndo_set_vf_vlan, |
| .ndo_set_vf_rate = fm10k_ndo_set_vf_bw, |
| .ndo_get_vf_config = fm10k_ndo_get_vf_config, |
| .ndo_add_vxlan_port = fm10k_add_vxlan_port, |
| .ndo_del_vxlan_port = fm10k_del_vxlan_port, |
| .ndo_do_ioctl = fm10k_ioctl, |
| .ndo_dfwd_add_station = fm10k_dfwd_add_station, |
| .ndo_dfwd_del_station = fm10k_dfwd_del_station, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = fm10k_netpoll, |
| #endif |
| .ndo_features_check = fm10k_features_check, |
| }; |
| |
| #define DEFAULT_DEBUG_LEVEL_SHIFT 3 |
| |
| struct net_device *fm10k_alloc_netdev(void) |
| { |
| struct fm10k_intfc *interface; |
| struct net_device *dev; |
| |
| dev = alloc_etherdev_mq(sizeof(struct fm10k_intfc), MAX_QUEUES); |
| if (!dev) |
| return NULL; |
| |
| /* set net device and ethtool ops */ |
| dev->netdev_ops = &fm10k_netdev_ops; |
| fm10k_set_ethtool_ops(dev); |
| |
| /* configure default debug level */ |
| interface = netdev_priv(dev); |
| interface->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; |
| |
| /* configure default features */ |
| dev->features |= NETIF_F_IP_CSUM | |
| NETIF_F_IPV6_CSUM | |
| NETIF_F_SG | |
| NETIF_F_TSO | |
| NETIF_F_TSO6 | |
| NETIF_F_TSO_ECN | |
| NETIF_F_GSO_UDP_TUNNEL | |
| NETIF_F_RXHASH | |
| NETIF_F_RXCSUM; |
| |
| /* all features defined to this point should be changeable */ |
| dev->hw_features |= dev->features; |
| |
| /* allow user to enable L2 forwarding acceleration */ |
| dev->hw_features |= NETIF_F_HW_L2FW_DOFFLOAD; |
| |
| /* configure VLAN features */ |
| dev->vlan_features |= dev->features; |
| |
| /* configure tunnel offloads */ |
| dev->hw_enc_features |= NETIF_F_IP_CSUM | |
| NETIF_F_TSO | |
| NETIF_F_TSO6 | |
| NETIF_F_TSO_ECN | |
| NETIF_F_GSO_UDP_TUNNEL | |
| NETIF_F_IPV6_CSUM; |
| |
| /* we want to leave these both on as we cannot disable VLAN tag |
| * insertion or stripping on the hardware since it is contained |
| * in the FTAG and not in the frame itself. |
| */ |
| dev->features |= NETIF_F_HW_VLAN_CTAG_TX | |
| NETIF_F_HW_VLAN_CTAG_RX | |
| NETIF_F_HW_VLAN_CTAG_FILTER; |
| |
| dev->priv_flags |= IFF_UNICAST_FLT; |
| |
| return dev; |
| } |