| /****************************************************************************** |
| * This software may be used and distributed according to the terms of |
| * the GNU General Public License (GPL), incorporated herein by reference. |
| * Drivers based on or derived from this code fall under the GPL and must |
| * retain the authorship, copyright and license notice. This file is not |
| * a complete program and may only be used when the entire operating |
| * system is licensed under the GPL. |
| * See the file COPYING in this distribution for more information. |
| * |
| * vxge-main.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O |
| * Virtualized Server Adapter. |
| * Copyright(c) 2002-2009 Neterion Inc. |
| * |
| * The module loadable parameters that are supported by the driver and a brief |
| * explanation of all the variables: |
| * vlan_tag_strip: |
| * Strip VLAN Tag enable/disable. Instructs the device to remove |
| * the VLAN tag from all received tagged frames that are not |
| * replicated at the internal L2 switch. |
| * 0 - Do not strip the VLAN tag. |
| * 1 - Strip the VLAN tag. |
| * |
| * addr_learn_en: |
| * Enable learning the mac address of the guest OS interface in |
| * a virtualization environment. |
| * 0 - DISABLE |
| * 1 - ENABLE |
| * |
| * max_config_port: |
| * Maximum number of port to be supported. |
| * MIN -1 and MAX - 2 |
| * |
| * max_config_vpath: |
| * This configures the maximum no of VPATH configures for each |
| * device function. |
| * MIN - 1 and MAX - 17 |
| * |
| * max_config_dev: |
| * This configures maximum no of Device function to be enabled. |
| * MIN - 1 and MAX - 17 |
| * |
| ******************************************************************************/ |
| |
| #include <linux/if_vlan.h> |
| #include <linux/pci.h> |
| #include <linux/tcp.h> |
| #include <net/ip.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include "vxge-main.h" |
| #include "vxge-reg.h" |
| |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O" |
| "Virtualized Server Adapter"); |
| |
| static struct pci_device_id vxge_id_table[] __devinitdata = { |
| {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID, |
| PCI_ANY_ID}, |
| {PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID, |
| PCI_ANY_ID}, |
| {0} |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, vxge_id_table); |
| |
| VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE); |
| VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT); |
| VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT); |
| VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT); |
| VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT); |
| VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV); |
| |
| static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] = |
| {0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31}; |
| static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] = |
| {[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF}; |
| module_param_array(bw_percentage, uint, NULL, 0); |
| |
| static struct vxge_drv_config *driver_config; |
| |
| static inline int is_vxge_card_up(struct vxgedev *vdev) |
| { |
| return test_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| } |
| |
| static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo) |
| { |
| unsigned long flags = 0; |
| struct sk_buff *skb_ptr = NULL; |
| struct sk_buff **temp, *head, *skb; |
| |
| if (spin_trylock_irqsave(&fifo->tx_lock, flags)) { |
| vxge_hw_vpath_poll_tx(fifo->handle, (void **)&skb_ptr); |
| spin_unlock_irqrestore(&fifo->tx_lock, flags); |
| } |
| /* free SKBs */ |
| head = skb_ptr; |
| while (head) { |
| skb = head; |
| temp = (struct sk_buff **)&skb->cb; |
| head = *temp; |
| *temp = NULL; |
| dev_kfree_skb_irq(skb); |
| } |
| } |
| |
| static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev) |
| { |
| int i; |
| |
| /* Complete all transmits */ |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo); |
| } |
| |
| static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev) |
| { |
| int i; |
| struct vxge_ring *ring; |
| |
| /* Complete all receives*/ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| ring = &vdev->vpaths[i].ring; |
| vxge_hw_vpath_poll_rx(ring->handle); |
| } |
| } |
| |
| /* |
| * MultiQ manipulation helper functions |
| */ |
| void vxge_stop_all_tx_queue(struct vxgedev *vdev) |
| { |
| int i; |
| struct net_device *dev = vdev->ndev; |
| |
| if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_STOP; |
| } |
| netif_tx_stop_all_queues(dev); |
| } |
| |
| void vxge_stop_tx_queue(struct vxge_fifo *fifo) |
| { |
| struct net_device *dev = fifo->ndev; |
| |
| struct netdev_queue *txq = NULL; |
| if (fifo->tx_steering_type == TX_MULTIQ_STEERING) |
| txq = netdev_get_tx_queue(dev, fifo->driver_id); |
| else { |
| txq = netdev_get_tx_queue(dev, 0); |
| fifo->queue_state = VPATH_QUEUE_STOP; |
| } |
| |
| netif_tx_stop_queue(txq); |
| } |
| |
| void vxge_start_all_tx_queue(struct vxgedev *vdev) |
| { |
| int i; |
| struct net_device *dev = vdev->ndev; |
| |
| if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START; |
| } |
| netif_tx_start_all_queues(dev); |
| } |
| |
| static void vxge_wake_all_tx_queue(struct vxgedev *vdev) |
| { |
| int i; |
| struct net_device *dev = vdev->ndev; |
| |
| if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START; |
| } |
| netif_tx_wake_all_queues(dev); |
| } |
| |
| void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb) |
| { |
| struct net_device *dev = fifo->ndev; |
| |
| int vpath_no = fifo->driver_id; |
| struct netdev_queue *txq = NULL; |
| if (fifo->tx_steering_type == TX_MULTIQ_STEERING) { |
| txq = netdev_get_tx_queue(dev, vpath_no); |
| if (netif_tx_queue_stopped(txq)) |
| netif_tx_wake_queue(txq); |
| } else { |
| txq = netdev_get_tx_queue(dev, 0); |
| if (fifo->queue_state == VPATH_QUEUE_STOP) |
| if (netif_tx_queue_stopped(txq)) { |
| fifo->queue_state = VPATH_QUEUE_START; |
| netif_tx_wake_queue(txq); |
| } |
| } |
| } |
| |
| /* |
| * vxge_callback_link_up |
| * |
| * This function is called during interrupt context to notify link up state |
| * change. |
| */ |
| void |
| vxge_callback_link_up(struct __vxge_hw_device *hldev) |
| { |
| struct net_device *dev = hldev->ndev; |
| struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| vdev->ndev->name, __func__, __LINE__); |
| printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name); |
| vdev->stats.link_up++; |
| |
| netif_carrier_on(vdev->ndev); |
| vxge_wake_all_tx_queue(vdev); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__); |
| } |
| |
| /* |
| * vxge_callback_link_down |
| * |
| * This function is called during interrupt context to notify link down state |
| * change. |
| */ |
| void |
| vxge_callback_link_down(struct __vxge_hw_device *hldev) |
| { |
| struct net_device *dev = hldev->ndev; |
| struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d", vdev->ndev->name, __func__, __LINE__); |
| printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name); |
| |
| vdev->stats.link_down++; |
| netif_carrier_off(vdev->ndev); |
| vxge_stop_all_tx_queue(vdev); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__); |
| } |
| |
| /* |
| * vxge_rx_alloc |
| * |
| * Allocate SKB. |
| */ |
| static struct sk_buff* |
| vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size) |
| { |
| struct net_device *dev; |
| struct sk_buff *skb; |
| struct vxge_rx_priv *rx_priv; |
| |
| dev = ring->ndev; |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| |
| rx_priv = vxge_hw_ring_rxd_private_get(dtrh); |
| |
| /* try to allocate skb first. this one may fail */ |
| skb = netdev_alloc_skb(dev, skb_size + |
| VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); |
| if (skb == NULL) { |
| vxge_debug_mem(VXGE_ERR, |
| "%s: out of memory to allocate SKB", dev->name); |
| ring->stats.skb_alloc_fail++; |
| return NULL; |
| } |
| |
| vxge_debug_mem(VXGE_TRACE, |
| "%s: %s:%d Skb : 0x%p", ring->ndev->name, |
| __func__, __LINE__, skb); |
| |
| skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); |
| |
| rx_priv->skb = skb; |
| rx_priv->data_size = skb_size; |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); |
| |
| return skb; |
| } |
| |
| /* |
| * vxge_rx_map |
| */ |
| static int vxge_rx_map(void *dtrh, struct vxge_ring *ring) |
| { |
| struct vxge_rx_priv *rx_priv; |
| dma_addr_t dma_addr; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| rx_priv = vxge_hw_ring_rxd_private_get(dtrh); |
| |
| dma_addr = pci_map_single(ring->pdev, rx_priv->skb->data, |
| rx_priv->data_size, PCI_DMA_FROMDEVICE); |
| |
| if (dma_addr == 0) { |
| ring->stats.pci_map_fail++; |
| return -EIO; |
| } |
| vxge_debug_mem(VXGE_TRACE, |
| "%s: %s:%d 1 buffer mode dma_addr = 0x%llx", |
| ring->ndev->name, __func__, __LINE__, |
| (unsigned long long)dma_addr); |
| vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size); |
| |
| rx_priv->data_dma = dma_addr; |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); |
| |
| return 0; |
| } |
| |
| /* |
| * vxge_rx_initial_replenish |
| * Allocation of RxD as an initial replenish procedure. |
| */ |
| static enum vxge_hw_status |
| vxge_rx_initial_replenish(void *dtrh, void *userdata) |
| { |
| struct vxge_ring *ring = (struct vxge_ring *)userdata; |
| struct vxge_rx_priv *rx_priv; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| if (vxge_rx_alloc(dtrh, ring, |
| VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL) |
| return VXGE_HW_FAIL; |
| |
| if (vxge_rx_map(dtrh, ring)) { |
| rx_priv = vxge_hw_ring_rxd_private_get(dtrh); |
| dev_kfree_skb(rx_priv->skb); |
| |
| return VXGE_HW_FAIL; |
| } |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); |
| |
| return VXGE_HW_OK; |
| } |
| |
| static inline void |
| vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan, |
| int pkt_length, struct vxge_hw_ring_rxd_info *ext_info) |
| { |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| skb_record_rx_queue(skb, ring->driver_id); |
| skb->protocol = eth_type_trans(skb, ring->ndev); |
| |
| ring->stats.rx_frms++; |
| ring->stats.rx_bytes += pkt_length; |
| |
| if (skb->pkt_type == PACKET_MULTICAST) |
| ring->stats.rx_mcast++; |
| |
| vxge_debug_rx(VXGE_TRACE, |
| "%s: %s:%d skb protocol = %d", |
| ring->ndev->name, __func__, __LINE__, skb->protocol); |
| |
| if (ring->gro_enable) { |
| if (ring->vlgrp && ext_info->vlan && |
| (ring->vlan_tag_strip == |
| VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE)) |
| vlan_gro_receive(&ring->napi, ring->vlgrp, |
| ext_info->vlan, skb); |
| else |
| napi_gro_receive(&ring->napi, skb); |
| } else { |
| if (ring->vlgrp && vlan && |
| (ring->vlan_tag_strip == |
| VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE)) |
| vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan); |
| else |
| netif_receive_skb(skb); |
| } |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__); |
| } |
| |
| static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring, |
| struct vxge_rx_priv *rx_priv) |
| { |
| pci_dma_sync_single_for_device(ring->pdev, |
| rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE); |
| |
| vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size); |
| vxge_hw_ring_rxd_pre_post(ring->handle, dtr); |
| } |
| |
| static inline void vxge_post(int *dtr_cnt, void **first_dtr, |
| void *post_dtr, struct __vxge_hw_ring *ringh) |
| { |
| int dtr_count = *dtr_cnt; |
| if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) { |
| if (*first_dtr) |
| vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr); |
| *first_dtr = post_dtr; |
| } else |
| vxge_hw_ring_rxd_post_post(ringh, post_dtr); |
| dtr_count++; |
| *dtr_cnt = dtr_count; |
| } |
| |
| /* |
| * vxge_rx_1b_compl |
| * |
| * If the interrupt is because of a received frame or if the receive ring |
| * contains fresh as yet un-processed frames, this function is called. |
| */ |
| enum vxge_hw_status |
| vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr, |
| u8 t_code, void *userdata) |
| { |
| struct vxge_ring *ring = (struct vxge_ring *)userdata; |
| struct net_device *dev = ring->ndev; |
| unsigned int dma_sizes; |
| void *first_dtr = NULL; |
| int dtr_cnt = 0; |
| int data_size; |
| dma_addr_t data_dma; |
| int pkt_length; |
| struct sk_buff *skb; |
| struct vxge_rx_priv *rx_priv; |
| struct vxge_hw_ring_rxd_info ext_info; |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| ring->pkts_processed = 0; |
| |
| vxge_hw_ring_replenish(ringh, 0); |
| |
| do { |
| rx_priv = vxge_hw_ring_rxd_private_get(dtr); |
| skb = rx_priv->skb; |
| data_size = rx_priv->data_size; |
| data_dma = rx_priv->data_dma; |
| |
| vxge_debug_rx(VXGE_TRACE, |
| "%s: %s:%d skb = 0x%p", |
| ring->ndev->name, __func__, __LINE__, skb); |
| |
| vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes); |
| pkt_length = dma_sizes; |
| |
| vxge_debug_rx(VXGE_TRACE, |
| "%s: %s:%d Packet Length = %d", |
| ring->ndev->name, __func__, __LINE__, pkt_length); |
| |
| vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info); |
| |
| /* check skb validity */ |
| vxge_assert(skb); |
| |
| prefetch((char *)skb + L1_CACHE_BYTES); |
| if (unlikely(t_code)) { |
| |
| if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) != |
| VXGE_HW_OK) { |
| |
| ring->stats.rx_errors++; |
| vxge_debug_rx(VXGE_TRACE, |
| "%s: %s :%d Rx T_code is %d", |
| ring->ndev->name, __func__, |
| __LINE__, t_code); |
| |
| /* If the t_code is not supported and if the |
| * t_code is other than 0x5 (unparseable packet |
| * such as unknown UPV6 header), Drop it !!! |
| */ |
| vxge_re_pre_post(dtr, ring, rx_priv); |
| |
| vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); |
| ring->stats.rx_dropped++; |
| continue; |
| } |
| } |
| |
| if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) { |
| |
| if (vxge_rx_alloc(dtr, ring, data_size) != NULL) { |
| |
| if (!vxge_rx_map(dtr, ring)) { |
| skb_put(skb, pkt_length); |
| |
| pci_unmap_single(ring->pdev, data_dma, |
| data_size, PCI_DMA_FROMDEVICE); |
| |
| vxge_hw_ring_rxd_pre_post(ringh, dtr); |
| vxge_post(&dtr_cnt, &first_dtr, dtr, |
| ringh); |
| } else { |
| dev_kfree_skb(rx_priv->skb); |
| rx_priv->skb = skb; |
| rx_priv->data_size = data_size; |
| vxge_re_pre_post(dtr, ring, rx_priv); |
| |
| vxge_post(&dtr_cnt, &first_dtr, dtr, |
| ringh); |
| ring->stats.rx_dropped++; |
| break; |
| } |
| } else { |
| vxge_re_pre_post(dtr, ring, rx_priv); |
| |
| vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); |
| ring->stats.rx_dropped++; |
| break; |
| } |
| } else { |
| struct sk_buff *skb_up; |
| |
| skb_up = netdev_alloc_skb(dev, pkt_length + |
| VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); |
| if (skb_up != NULL) { |
| skb_reserve(skb_up, |
| VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN); |
| |
| pci_dma_sync_single_for_cpu(ring->pdev, |
| data_dma, data_size, |
| PCI_DMA_FROMDEVICE); |
| |
| vxge_debug_mem(VXGE_TRACE, |
| "%s: %s:%d skb_up = %p", |
| ring->ndev->name, __func__, |
| __LINE__, skb); |
| memcpy(skb_up->data, skb->data, pkt_length); |
| |
| vxge_re_pre_post(dtr, ring, rx_priv); |
| |
| vxge_post(&dtr_cnt, &first_dtr, dtr, |
| ringh); |
| /* will netif_rx small SKB instead */ |
| skb = skb_up; |
| skb_put(skb, pkt_length); |
| } else { |
| vxge_re_pre_post(dtr, ring, rx_priv); |
| |
| vxge_post(&dtr_cnt, &first_dtr, dtr, ringh); |
| vxge_debug_rx(VXGE_ERR, |
| "%s: vxge_rx_1b_compl: out of " |
| "memory", dev->name); |
| ring->stats.skb_alloc_fail++; |
| break; |
| } |
| } |
| |
| if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) && |
| !(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) && |
| ring->rx_csum && /* Offload Rx side CSUM */ |
| ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK && |
| ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb->ip_summed = CHECKSUM_NONE; |
| |
| vxge_rx_complete(ring, skb, ext_info.vlan, |
| pkt_length, &ext_info); |
| |
| ring->budget--; |
| ring->pkts_processed++; |
| if (!ring->budget) |
| break; |
| |
| } while (vxge_hw_ring_rxd_next_completed(ringh, &dtr, |
| &t_code) == VXGE_HW_OK); |
| |
| if (first_dtr) |
| vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr); |
| |
| dev->last_rx = jiffies; |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", |
| __func__, __LINE__); |
| return VXGE_HW_OK; |
| } |
| |
| /* |
| * vxge_xmit_compl |
| * |
| * If an interrupt was raised to indicate DMA complete of the Tx packet, |
| * this function is called. It identifies the last TxD whose buffer was |
| * freed and frees all skbs whose data have already DMA'ed into the NICs |
| * internal memory. |
| */ |
| enum vxge_hw_status |
| vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr, |
| enum vxge_hw_fifo_tcode t_code, void *userdata, |
| void **skb_ptr) |
| { |
| struct vxge_fifo *fifo = (struct vxge_fifo *)userdata; |
| struct sk_buff *skb, *head = NULL; |
| struct sk_buff **temp; |
| int pkt_cnt = 0; |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Entered....", __func__, __LINE__); |
| |
| do { |
| int frg_cnt; |
| skb_frag_t *frag; |
| int i = 0, j; |
| struct vxge_tx_priv *txd_priv = |
| vxge_hw_fifo_txdl_private_get(dtr); |
| |
| skb = txd_priv->skb; |
| frg_cnt = skb_shinfo(skb)->nr_frags; |
| frag = &skb_shinfo(skb)->frags[0]; |
| |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d fifo_hw = %p dtr = %p " |
| "tcode = 0x%x", fifo->ndev->name, __func__, |
| __LINE__, fifo_hw, dtr, t_code); |
| /* check skb validity */ |
| vxge_assert(skb); |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d", |
| fifo->ndev->name, __func__, __LINE__, |
| skb, txd_priv, frg_cnt); |
| if (unlikely(t_code)) { |
| fifo->stats.tx_errors++; |
| vxge_debug_tx(VXGE_ERR, |
| "%s: tx: dtr %p completed due to " |
| "error t_code %01x", fifo->ndev->name, |
| dtr, t_code); |
| vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code); |
| } |
| |
| /* for unfragmented skb */ |
| pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++], |
| skb_headlen(skb), PCI_DMA_TODEVICE); |
| |
| for (j = 0; j < frg_cnt; j++) { |
| pci_unmap_page(fifo->pdev, |
| txd_priv->dma_buffers[i++], |
| frag->size, PCI_DMA_TODEVICE); |
| frag += 1; |
| } |
| |
| vxge_hw_fifo_txdl_free(fifo_hw, dtr); |
| |
| /* Updating the statistics block */ |
| fifo->stats.tx_frms++; |
| fifo->stats.tx_bytes += skb->len; |
| |
| temp = (struct sk_buff **)&skb->cb; |
| *temp = head; |
| head = skb; |
| |
| pkt_cnt++; |
| if (pkt_cnt > fifo->indicate_max_pkts) |
| break; |
| |
| } while (vxge_hw_fifo_txdl_next_completed(fifo_hw, |
| &dtr, &t_code) == VXGE_HW_OK); |
| |
| vxge_wake_tx_queue(fifo, skb); |
| |
| if (skb_ptr) |
| *skb_ptr = (void *) head; |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", |
| fifo->ndev->name, __func__, __LINE__); |
| return VXGE_HW_OK; |
| } |
| |
| /* select a vpath to transmit the packet */ |
| static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb, |
| int *do_lock) |
| { |
| u16 queue_len, counter = 0; |
| if (skb->protocol == htons(ETH_P_IP)) { |
| struct iphdr *ip; |
| struct tcphdr *th; |
| |
| ip = ip_hdr(skb); |
| |
| if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) { |
| th = (struct tcphdr *)(((unsigned char *)ip) + |
| ip->ihl*4); |
| |
| queue_len = vdev->no_of_vpath; |
| counter = (ntohs(th->source) + |
| ntohs(th->dest)) & |
| vdev->vpath_selector[queue_len - 1]; |
| if (counter >= queue_len) |
| counter = queue_len - 1; |
| |
| if (ip->protocol == IPPROTO_UDP) { |
| #ifdef NETIF_F_LLTX |
| *do_lock = 0; |
| #endif |
| } |
| } |
| } |
| return counter; |
| } |
| |
| static enum vxge_hw_status vxge_search_mac_addr_in_list( |
| struct vxge_vpath *vpath, u64 del_mac) |
| { |
| struct list_head *entry, *next; |
| list_for_each_safe(entry, next, &vpath->mac_addr_list) { |
| if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header) |
| { |
| struct macInfo mac_info; |
| u8 *mac_address = NULL; |
| u64 mac_addr = 0, vpath_vector = 0; |
| int vpath_idx = 0; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxge_vpath *vpath = NULL; |
| struct __vxge_hw_device *hldev; |
| |
| hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev); |
| |
| mac_address = (u8 *)&mac_addr; |
| memcpy(mac_address, mac_header, ETH_ALEN); |
| |
| /* Is this mac address already in the list? */ |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { |
| vpath = &vdev->vpaths[vpath_idx]; |
| if (vxge_search_mac_addr_in_list(vpath, mac_addr)) |
| return vpath_idx; |
| } |
| |
| memset(&mac_info, 0, sizeof(struct macInfo)); |
| memcpy(mac_info.macaddr, mac_header, ETH_ALEN); |
| |
| /* Any vpath has room to add mac address to its da table? */ |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { |
| vpath = &vdev->vpaths[vpath_idx]; |
| if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) { |
| /* Add this mac address to this vpath */ |
| mac_info.vpath_no = vpath_idx; |
| mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; |
| status = vxge_add_mac_addr(vdev, &mac_info); |
| if (status != VXGE_HW_OK) |
| return -EPERM; |
| return vpath_idx; |
| } |
| } |
| |
| mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST; |
| vpath_idx = 0; |
| mac_info.vpath_no = vpath_idx; |
| /* Is the first vpath already selected as catch-basin ? */ |
| vpath = &vdev->vpaths[vpath_idx]; |
| if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) { |
| /* Add this mac address to this vpath */ |
| if (FALSE == vxge_mac_list_add(vpath, &mac_info)) |
| return -EPERM; |
| return vpath_idx; |
| } |
| |
| /* Select first vpath as catch-basin */ |
| vpath_vector = vxge_mBIT(vpath->device_id); |
| status = vxge_hw_mgmt_reg_write(vpath->vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof( |
| struct vxge_hw_mrpcim_reg, |
| rts_mgr_cbasin_cfg), |
| vpath_vector); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: Unable to set the vpath-%d in catch-basin mode", |
| VXGE_DRIVER_NAME, vpath->device_id); |
| return -EPERM; |
| } |
| |
| if (FALSE == vxge_mac_list_add(vpath, &mac_info)) |
| return -EPERM; |
| |
| return vpath_idx; |
| } |
| |
| /** |
| * vxge_xmit |
| * @skb : the socket buffer containing the Tx data. |
| * @dev : device pointer. |
| * |
| * This function is the Tx entry point of the driver. Neterion NIC supports |
| * certain protocol assist features on Tx side, namely CSO, S/G, LSO. |
| * NOTE: when device cant queue the pkt, just the trans_start variable will |
| * not be upadted. |
| */ |
| static int |
| vxge_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct vxge_fifo *fifo = NULL; |
| void *dtr_priv; |
| void *dtr = NULL; |
| struct vxgedev *vdev = NULL; |
| enum vxge_hw_status status; |
| int frg_cnt, first_frg_len; |
| skb_frag_t *frag; |
| int i = 0, j = 0, avail; |
| u64 dma_pointer; |
| struct vxge_tx_priv *txdl_priv = NULL; |
| struct __vxge_hw_fifo *fifo_hw; |
| u32 max_mss = 0x0; |
| int offload_type; |
| unsigned long flags = 0; |
| int vpath_no = 0; |
| int do_spin_tx_lock = 1; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| dev->name, __func__, __LINE__); |
| |
| /* A buffer with no data will be dropped */ |
| if (unlikely(skb->len <= 0)) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: Buffer has no data..", dev->name); |
| dev_kfree_skb(skb); |
| return NETDEV_TX_OK; |
| } |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| if (unlikely(!is_vxge_card_up(vdev))) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: vdev not initialized", dev->name); |
| dev_kfree_skb(skb); |
| return NETDEV_TX_OK; |
| } |
| |
| if (vdev->config.addr_learn_en) { |
| vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN); |
| if (vpath_no == -EPERM) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: Failed to store the mac address", |
| dev->name); |
| dev_kfree_skb(skb); |
| return NETDEV_TX_OK; |
| } |
| } |
| |
| if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) |
| vpath_no = skb_get_queue_mapping(skb); |
| else if (vdev->config.tx_steering_type == TX_PORT_STEERING) |
| vpath_no = vxge_get_vpath_no(vdev, skb, &do_spin_tx_lock); |
| |
| vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no); |
| |
| if (vpath_no >= vdev->no_of_vpath) |
| vpath_no = 0; |
| |
| fifo = &vdev->vpaths[vpath_no].fifo; |
| fifo_hw = fifo->handle; |
| |
| if (do_spin_tx_lock) |
| spin_lock_irqsave(&fifo->tx_lock, flags); |
| else { |
| if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags))) |
| return NETDEV_TX_LOCKED; |
| } |
| |
| if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) { |
| if (netif_subqueue_stopped(dev, skb)) { |
| spin_unlock_irqrestore(&fifo->tx_lock, flags); |
| return NETDEV_TX_BUSY; |
| } |
| } else if (unlikely(fifo->queue_state == VPATH_QUEUE_STOP)) { |
| if (netif_queue_stopped(dev)) { |
| spin_unlock_irqrestore(&fifo->tx_lock, flags); |
| return NETDEV_TX_BUSY; |
| } |
| } |
| avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw); |
| if (avail == 0) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: No free TXDs available", dev->name); |
| fifo->stats.txd_not_free++; |
| vxge_stop_tx_queue(fifo); |
| goto _exit2; |
| } |
| |
| status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv); |
| if (unlikely(status != VXGE_HW_OK)) { |
| vxge_debug_tx(VXGE_ERR, |
| "%s: Out of descriptors .", dev->name); |
| fifo->stats.txd_out_of_desc++; |
| vxge_stop_tx_queue(fifo); |
| goto _exit2; |
| } |
| |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p", |
| dev->name, __func__, __LINE__, |
| fifo_hw, dtr, dtr_priv); |
| |
| if (vdev->vlgrp && vlan_tx_tag_present(skb)) { |
| u16 vlan_tag = vlan_tx_tag_get(skb); |
| vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag); |
| } |
| |
| first_frg_len = skb_headlen(skb); |
| |
| dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len, |
| PCI_DMA_TODEVICE); |
| |
| if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) { |
| vxge_hw_fifo_txdl_free(fifo_hw, dtr); |
| vxge_stop_tx_queue(fifo); |
| fifo->stats.pci_map_fail++; |
| goto _exit2; |
| } |
| |
| txdl_priv = vxge_hw_fifo_txdl_private_get(dtr); |
| txdl_priv->skb = skb; |
| txdl_priv->dma_buffers[j] = dma_pointer; |
| |
| frg_cnt = skb_shinfo(skb)->nr_frags; |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d skb = %p txdl_priv = %p " |
| "frag_cnt = %d dma_pointer = 0x%llx", dev->name, |
| __func__, __LINE__, skb, txdl_priv, |
| frg_cnt, (unsigned long long)dma_pointer); |
| |
| vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer, |
| first_frg_len); |
| |
| frag = &skb_shinfo(skb)->frags[0]; |
| for (i = 0; i < frg_cnt; i++) { |
| /* ignore 0 length fragment */ |
| if (!frag->size) |
| continue; |
| |
| dma_pointer = |
| (u64)pci_map_page(fifo->pdev, frag->page, |
| frag->page_offset, frag->size, |
| PCI_DMA_TODEVICE); |
| |
| if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) |
| goto _exit0; |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d frag = %d dma_pointer = 0x%llx", |
| dev->name, __func__, __LINE__, i, |
| (unsigned long long)dma_pointer); |
| |
| txdl_priv->dma_buffers[j] = dma_pointer; |
| vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer, |
| frag->size); |
| frag += 1; |
| } |
| |
| offload_type = vxge_offload_type(skb); |
| |
| if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) { |
| |
| int mss = vxge_tcp_mss(skb); |
| if (mss) { |
| max_mss = dev->mtu + ETH_HLEN - |
| VXGE_HW_TCPIP_HEADER_MAX_SIZE; |
| if (mss > max_mss) |
| mss = max_mss; |
| vxge_debug_tx(VXGE_TRACE, |
| "%s: %s:%d mss = %d", |
| dev->name, __func__, __LINE__, mss); |
| vxge_hw_fifo_txdl_mss_set(dtr, mss); |
| } else { |
| vxge_assert(skb->len <= |
| dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE); |
| vxge_assert(0); |
| goto _exit1; |
| } |
| } |
| |
| if (skb->ip_summed == CHECKSUM_PARTIAL) |
| vxge_hw_fifo_txdl_cksum_set_bits(dtr, |
| VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN | |
| VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN | |
| VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN); |
| |
| vxge_hw_fifo_txdl_post(fifo_hw, dtr); |
| #ifdef NETIF_F_LLTX |
| dev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */ |
| #endif |
| spin_unlock_irqrestore(&fifo->tx_lock, flags); |
| |
| VXGE_COMPLETE_VPATH_TX(fifo); |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...", |
| dev->name, __func__, __LINE__); |
| return 0; |
| |
| _exit0: |
| vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name); |
| |
| _exit1: |
| j = 0; |
| frag = &skb_shinfo(skb)->frags[0]; |
| |
| pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++], |
| skb_headlen(skb), PCI_DMA_TODEVICE); |
| |
| for (; j < i; j++) { |
| pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j], |
| frag->size, PCI_DMA_TODEVICE); |
| frag += 1; |
| } |
| |
| vxge_hw_fifo_txdl_free(fifo_hw, dtr); |
| _exit2: |
| dev_kfree_skb(skb); |
| spin_unlock_irqrestore(&fifo->tx_lock, flags); |
| VXGE_COMPLETE_VPATH_TX(fifo); |
| |
| return 0; |
| } |
| |
| /* |
| * vxge_rx_term |
| * |
| * Function will be called by hw function to abort all outstanding receive |
| * descriptors. |
| */ |
| static void |
| vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata) |
| { |
| struct vxge_ring *ring = (struct vxge_ring *)userdata; |
| struct vxge_rx_priv *rx_priv = |
| vxge_hw_ring_rxd_private_get(dtrh); |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| ring->ndev->name, __func__, __LINE__); |
| if (state != VXGE_HW_RXD_STATE_POSTED) |
| return; |
| |
| pci_unmap_single(ring->pdev, rx_priv->data_dma, |
| rx_priv->data_size, PCI_DMA_FROMDEVICE); |
| |
| dev_kfree_skb(rx_priv->skb); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", |
| ring->ndev->name, __func__, __LINE__); |
| } |
| |
| /* |
| * vxge_tx_term |
| * |
| * Function will be called to abort all outstanding tx descriptors |
| */ |
| static void |
| vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata) |
| { |
| struct vxge_fifo *fifo = (struct vxge_fifo *)userdata; |
| skb_frag_t *frag; |
| int i = 0, j, frg_cnt; |
| struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh); |
| struct sk_buff *skb = txd_priv->skb; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| if (state != VXGE_HW_TXDL_STATE_POSTED) |
| return; |
| |
| /* check skb validity */ |
| vxge_assert(skb); |
| frg_cnt = skb_shinfo(skb)->nr_frags; |
| frag = &skb_shinfo(skb)->frags[0]; |
| |
| /* for unfragmented skb */ |
| pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++], |
| skb_headlen(skb), PCI_DMA_TODEVICE); |
| |
| for (j = 0; j < frg_cnt; j++) { |
| pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++], |
| frag->size, PCI_DMA_TODEVICE); |
| frag += 1; |
| } |
| |
| dev_kfree_skb(skb); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| /** |
| * vxge_set_multicast |
| * @dev: pointer to the device structure |
| * |
| * Entry point for multicast address enable/disable |
| * This function is a driver entry point which gets called by the kernel |
| * whenever multicast addresses must be enabled/disabled. This also gets |
| * called to set/reset promiscuous mode. Depending on the deivce flag, we |
| * determine, if multicast address must be enabled or if promiscuous mode |
| * is to be disabled etc. |
| */ |
| static void vxge_set_multicast(struct net_device *dev) |
| { |
| struct dev_mc_list *mclist; |
| struct vxgedev *vdev; |
| int i, mcast_cnt = 0; |
| struct __vxge_hw_device *hldev; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct macInfo mac_info; |
| int vpath_idx = 0; |
| struct vxge_mac_addrs *mac_entry; |
| struct list_head *list_head; |
| struct list_head *entry, *next; |
| u8 *mac_address = NULL; |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d", __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| hldev = (struct __vxge_hw_device *)vdev->devh; |
| |
| if (unlikely(!is_vxge_card_up(vdev))) |
| return; |
| |
| if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) { |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_open); |
| status = vxge_hw_vpath_mcast_enable( |
| vdev->vpaths[i].handle); |
| vdev->all_multi_flg = 1; |
| } |
| } else if ((dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) { |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_open); |
| status = vxge_hw_vpath_mcast_disable( |
| vdev->vpaths[i].handle); |
| vdev->all_multi_flg = 1; |
| } |
| } |
| |
| if (status != VXGE_HW_OK) |
| vxge_debug_init(VXGE_ERR, |
| "failed to %s multicast, status %d", |
| dev->flags & IFF_ALLMULTI ? |
| "enable" : "disable", status); |
| |
| if (!vdev->config.addr_learn_en) { |
| if (dev->flags & IFF_PROMISC) { |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_open); |
| status = vxge_hw_vpath_promisc_enable( |
| vdev->vpaths[i].handle); |
| } |
| } else { |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_open); |
| status = vxge_hw_vpath_promisc_disable( |
| vdev->vpaths[i].handle); |
| } |
| } |
| } |
| |
| memset(&mac_info, 0, sizeof(struct macInfo)); |
| /* Update individual M_CAST address list */ |
| if ((!vdev->all_multi_flg) && dev->mc_count) { |
| |
| mcast_cnt = vdev->vpaths[0].mcast_addr_cnt; |
| list_head = &vdev->vpaths[0].mac_addr_list; |
| if ((dev->mc_count + |
| (vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) > |
| vdev->vpaths[0].max_mac_addr_cnt) |
| goto _set_all_mcast; |
| |
| /* Delete previous MC's */ |
| for (i = 0; i < mcast_cnt; i++) { |
| if (!list_empty(list_head)) |
| mac_entry = (struct vxge_mac_addrs *) |
| list_first_entry(list_head, |
| struct vxge_mac_addrs, |
| item); |
| |
| list_for_each_safe(entry, next, list_head) { |
| |
| mac_entry = (struct vxge_mac_addrs *) entry; |
| /* Copy the mac address to delete */ |
| mac_address = (u8 *)&mac_entry->macaddr; |
| memcpy(mac_info.macaddr, mac_address, ETH_ALEN); |
| |
| /* Is this a multicast address */ |
| if (0x01 & mac_info.macaddr[0]) { |
| for (vpath_idx = 0; vpath_idx < |
| vdev->no_of_vpath; |
| vpath_idx++) { |
| mac_info.vpath_no = vpath_idx; |
| status = vxge_del_mac_addr( |
| vdev, |
| &mac_info); |
| } |
| } |
| } |
| } |
| |
| /* Add new ones */ |
| for (i = 0, mclist = dev->mc_list; i < dev->mc_count; |
| i++, mclist = mclist->next) { |
| |
| memcpy(mac_info.macaddr, mclist->dmi_addr, ETH_ALEN); |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; |
| vpath_idx++) { |
| mac_info.vpath_no = vpath_idx; |
| mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; |
| status = vxge_add_mac_addr(vdev, &mac_info); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s:%d Setting individual" |
| "multicast address failed", |
| __func__, __LINE__); |
| goto _set_all_mcast; |
| } |
| } |
| } |
| |
| return; |
| _set_all_mcast: |
| mcast_cnt = vdev->vpaths[0].mcast_addr_cnt; |
| /* Delete previous MC's */ |
| for (i = 0; i < mcast_cnt; i++) { |
| |
| list_for_each_safe(entry, next, list_head) { |
| |
| mac_entry = (struct vxge_mac_addrs *) entry; |
| /* Copy the mac address to delete */ |
| mac_address = (u8 *)&mac_entry->macaddr; |
| memcpy(mac_info.macaddr, mac_address, ETH_ALEN); |
| |
| /* Is this a multicast address */ |
| if (0x01 & mac_info.macaddr[0]) |
| break; |
| } |
| |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; |
| vpath_idx++) { |
| mac_info.vpath_no = vpath_idx; |
| status = vxge_del_mac_addr(vdev, &mac_info); |
| } |
| } |
| |
| /* Enable all multicast */ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_open); |
| status = vxge_hw_vpath_mcast_enable( |
| vdev->vpaths[i].handle); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s:%d Enabling all multicasts failed", |
| __func__, __LINE__); |
| } |
| vdev->all_multi_flg = 1; |
| } |
| dev->flags |= IFF_ALLMULTI; |
| } |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| /** |
| * vxge_set_mac_addr |
| * @dev: pointer to the device structure |
| * |
| * Update entry "0" (default MAC addr) |
| */ |
| static int vxge_set_mac_addr(struct net_device *dev, void *p) |
| { |
| struct sockaddr *addr = p; |
| struct vxgedev *vdev; |
| struct __vxge_hw_device *hldev; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct macInfo mac_info_new, mac_info_old; |
| int vpath_idx = 0; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| hldev = vdev->devh; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EINVAL; |
| |
| memset(&mac_info_new, 0, sizeof(struct macInfo)); |
| memset(&mac_info_old, 0, sizeof(struct macInfo)); |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...", |
| __func__, __LINE__); |
| |
| /* Get the old address */ |
| memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len); |
| |
| /* Copy the new address */ |
| memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len); |
| |
| /* First delete the old mac address from all the vpaths |
| as we can't specify the index while adding new mac address */ |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { |
| struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx]; |
| if (!vpath->is_open) { |
| /* This can happen when this interface is added/removed |
| to the bonding interface. Delete this station address |
| from the linked list */ |
| vxge_mac_list_del(vpath, &mac_info_old); |
| |
| /* Add this new address to the linked list |
| for later restoring */ |
| vxge_mac_list_add(vpath, &mac_info_new); |
| |
| continue; |
| } |
| /* Delete the station address */ |
| mac_info_old.vpath_no = vpath_idx; |
| status = vxge_del_mac_addr(vdev, &mac_info_old); |
| } |
| |
| if (unlikely(!is_vxge_card_up(vdev))) { |
| memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| return VXGE_HW_OK; |
| } |
| |
| /* Set this mac address to all the vpaths */ |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) { |
| mac_info_new.vpath_no = vpath_idx; |
| mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE; |
| status = vxge_add_mac_addr(vdev, &mac_info_new); |
| if (status != VXGE_HW_OK) |
| return -EINVAL; |
| } |
| |
| memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| |
| return status; |
| } |
| |
| /* |
| * vxge_vpath_intr_enable |
| * @vdev: pointer to vdev |
| * @vp_id: vpath for which to enable the interrupts |
| * |
| * Enables the interrupts for the vpath |
| */ |
| void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id) |
| { |
| struct vxge_vpath *vpath = &vdev->vpaths[vp_id]; |
| int msix_id, alarm_msix_id; |
| int tim_msix_id[4] = {[0 ...3] = 0}; |
| |
| vxge_hw_vpath_intr_enable(vpath->handle); |
| |
| if (vdev->config.intr_type == INTA) |
| vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle); |
| else { |
| msix_id = vp_id * VXGE_HW_VPATH_MSIX_ACTIVE; |
| alarm_msix_id = |
| VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2; |
| |
| tim_msix_id[0] = msix_id; |
| tim_msix_id[1] = msix_id + 1; |
| vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id, |
| alarm_msix_id); |
| |
| vxge_hw_vpath_msix_unmask(vpath->handle, msix_id); |
| vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1); |
| |
| /* enable the alarm vector */ |
| vxge_hw_vpath_msix_unmask(vpath->handle, alarm_msix_id); |
| } |
| } |
| |
| /* |
| * vxge_vpath_intr_disable |
| * @vdev: pointer to vdev |
| * @vp_id: vpath for which to disable the interrupts |
| * |
| * Disables the interrupts for the vpath |
| */ |
| void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id) |
| { |
| struct vxge_vpath *vpath = &vdev->vpaths[vp_id]; |
| int msix_id; |
| |
| vxge_hw_vpath_intr_disable(vpath->handle); |
| |
| if (vdev->config.intr_type == INTA) |
| vxge_hw_vpath_inta_mask_tx_rx(vpath->handle); |
| else { |
| msix_id = vp_id * VXGE_HW_VPATH_MSIX_ACTIVE; |
| vxge_hw_vpath_msix_mask(vpath->handle, msix_id); |
| vxge_hw_vpath_msix_mask(vpath->handle, msix_id + 1); |
| |
| /* disable the alarm vector */ |
| msix_id = VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2; |
| vxge_hw_vpath_msix_mask(vpath->handle, msix_id); |
| } |
| } |
| |
| /* |
| * vxge_reset_vpath |
| * @vdev: pointer to vdev |
| * @vp_id: vpath to reset |
| * |
| * Resets the vpath |
| */ |
| static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| int ret = 0; |
| |
| /* check if device is down already */ |
| if (unlikely(!is_vxge_card_up(vdev))) |
| return 0; |
| |
| /* is device reset already scheduled */ |
| if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) |
| return 0; |
| |
| if (vdev->vpaths[vp_id].handle) { |
| if (vxge_hw_vpath_reset(vdev->vpaths[vp_id].handle) |
| == VXGE_HW_OK) { |
| if (is_vxge_card_up(vdev) && |
| vxge_hw_vpath_recover_from_reset( |
| vdev->vpaths[vp_id].handle) |
| != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_recover_from_reset" |
| "failed for vpath:%d", vp_id); |
| return status; |
| } |
| } else { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_reset failed for" |
| "vpath:%d", vp_id); |
| return status; |
| } |
| } else |
| return VXGE_HW_FAIL; |
| |
| vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]); |
| vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]); |
| |
| /* Enable all broadcast */ |
| vxge_hw_vpath_bcast_enable(vdev->vpaths[vp_id].handle); |
| |
| /* Enable the interrupts */ |
| vxge_vpath_intr_enable(vdev, vp_id); |
| |
| smp_wmb(); |
| |
| /* Enable the flow of traffic through the vpath */ |
| vxge_hw_vpath_enable(vdev->vpaths[vp_id].handle); |
| |
| smp_wmb(); |
| vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[vp_id].handle); |
| vdev->vpaths[vp_id].ring.last_status = VXGE_HW_OK; |
| |
| /* Vpath reset done */ |
| clear_bit(vp_id, &vdev->vp_reset); |
| |
| /* Start the vpath queue */ |
| vxge_wake_tx_queue(&vdev->vpaths[vp_id].fifo, NULL); |
| |
| return ret; |
| } |
| |
| static int do_vxge_reset(struct vxgedev *vdev, int event) |
| { |
| enum vxge_hw_status status; |
| int ret = 0, vp_id, i; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) { |
| /* check if device is down already */ |
| if (unlikely(!is_vxge_card_up(vdev))) |
| return 0; |
| |
| /* is reset already scheduled */ |
| if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) |
| return 0; |
| } |
| |
| if (event == VXGE_LL_FULL_RESET) { |
| /* wait for all the vpath reset to complete */ |
| for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { |
| while (test_bit(vp_id, &vdev->vp_reset)) |
| msleep(50); |
| } |
| |
| /* if execution mode is set to debug, don't reset the adapter */ |
| if (unlikely(vdev->exec_mode)) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: execution mode is debug, returning..", |
| vdev->ndev->name); |
| clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| vxge_stop_all_tx_queue(vdev); |
| return 0; |
| } |
| } |
| |
| if (event == VXGE_LL_FULL_RESET) { |
| vxge_hw_device_intr_disable(vdev->devh); |
| |
| switch (vdev->cric_err_event) { |
| case VXGE_HW_EVENT_UNKNOWN: |
| vxge_stop_all_tx_queue(vdev); |
| vxge_debug_init(VXGE_ERR, |
| "fatal: %s: Disabling device due to" |
| "unknown error", |
| vdev->ndev->name); |
| ret = -EPERM; |
| goto out; |
| case VXGE_HW_EVENT_RESET_START: |
| break; |
| case VXGE_HW_EVENT_RESET_COMPLETE: |
| case VXGE_HW_EVENT_LINK_DOWN: |
| case VXGE_HW_EVENT_LINK_UP: |
| case VXGE_HW_EVENT_ALARM_CLEARED: |
| case VXGE_HW_EVENT_ECCERR: |
| case VXGE_HW_EVENT_MRPCIM_ECCERR: |
| ret = -EPERM; |
| goto out; |
| case VXGE_HW_EVENT_FIFO_ERR: |
| case VXGE_HW_EVENT_VPATH_ERR: |
| break; |
| case VXGE_HW_EVENT_CRITICAL_ERR: |
| vxge_stop_all_tx_queue(vdev); |
| vxge_debug_init(VXGE_ERR, |
| "fatal: %s: Disabling device due to" |
| "serious error", |
| vdev->ndev->name); |
| /* SOP or device reset required */ |
| /* This event is not currently used */ |
| ret = -EPERM; |
| goto out; |
| case VXGE_HW_EVENT_SERR: |
| vxge_stop_all_tx_queue(vdev); |
| vxge_debug_init(VXGE_ERR, |
| "fatal: %s: Disabling device due to" |
| "serious error", |
| vdev->ndev->name); |
| ret = -EPERM; |
| goto out; |
| case VXGE_HW_EVENT_SRPCIM_SERR: |
| case VXGE_HW_EVENT_MRPCIM_SERR: |
| ret = -EPERM; |
| goto out; |
| case VXGE_HW_EVENT_SLOT_FREEZE: |
| vxge_stop_all_tx_queue(vdev); |
| vxge_debug_init(VXGE_ERR, |
| "fatal: %s: Disabling device due to" |
| "slot freeze", |
| vdev->ndev->name); |
| ret = -EPERM; |
| goto out; |
| default: |
| break; |
| |
| } |
| } |
| |
| if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) |
| vxge_stop_all_tx_queue(vdev); |
| |
| if (event == VXGE_LL_FULL_RESET) { |
| status = vxge_reset_all_vpaths(vdev); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "fatal: %s: can not reset vpaths", |
| vdev->ndev->name); |
| ret = -EPERM; |
| goto out; |
| } |
| } |
| |
| if (event == VXGE_LL_COMPL_RESET) { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| if (vdev->vpaths[i].handle) { |
| if (vxge_hw_vpath_recover_from_reset( |
| vdev->vpaths[i].handle) |
| != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_recover_" |
| "from_reset failed for vpath: " |
| "%d", i); |
| ret = -EPERM; |
| goto out; |
| } |
| } else { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_reset failed for " |
| "vpath:%d", i); |
| ret = -EPERM; |
| goto out; |
| } |
| } |
| |
| if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) { |
| /* Reprogram the DA table with populated mac addresses */ |
| for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { |
| vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]); |
| vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]); |
| } |
| |
| /* enable vpath interrupts */ |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vxge_vpath_intr_enable(vdev, i); |
| |
| vxge_hw_device_intr_enable(vdev->devh); |
| |
| smp_wmb(); |
| |
| /* Indicate card up */ |
| set_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| |
| /* Get the traffic to flow through the vpaths */ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_hw_vpath_enable(vdev->vpaths[i].handle); |
| smp_wmb(); |
| vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle); |
| } |
| |
| vxge_wake_all_tx_queue(vdev); |
| } |
| |
| out: |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| |
| /* Indicate reset done */ |
| if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) |
| clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state); |
| return ret; |
| } |
| |
| /* |
| * vxge_reset |
| * @vdev: pointer to ll device |
| * |
| * driver may reset the chip on events of serr, eccerr, etc |
| */ |
| int vxge_reset(struct vxgedev *vdev) |
| { |
| do_vxge_reset(vdev, VXGE_LL_FULL_RESET); |
| return 0; |
| } |
| |
| /** |
| * vxge_poll - Receive handler when Receive Polling is used. |
| * @dev: pointer to the device structure. |
| * @budget: Number of packets budgeted to be processed in this iteration. |
| * |
| * This function comes into picture only if Receive side is being handled |
| * through polling (called NAPI in linux). It mostly does what the normal |
| * Rx interrupt handler does in terms of descriptor and packet processing |
| * but not in an interrupt context. Also it will process a specified number |
| * of packets at most in one iteration. This value is passed down by the |
| * kernel as the function argument 'budget'. |
| */ |
| static int vxge_poll_msix(struct napi_struct *napi, int budget) |
| { |
| struct vxge_ring *ring = |
| container_of(napi, struct vxge_ring, napi); |
| int budget_org = budget; |
| ring->budget = budget; |
| |
| vxge_hw_vpath_poll_rx(ring->handle); |
| |
| if (ring->pkts_processed < budget_org) { |
| napi_complete(napi); |
| /* Re enable the Rx interrupts for the vpath */ |
| vxge_hw_channel_msix_unmask( |
| (struct __vxge_hw_channel *)ring->handle, |
| ring->rx_vector_no); |
| } |
| |
| return ring->pkts_processed; |
| } |
| |
| static int vxge_poll_inta(struct napi_struct *napi, int budget) |
| { |
| struct vxgedev *vdev = container_of(napi, struct vxgedev, napi); |
| int pkts_processed = 0; |
| int i; |
| int budget_org = budget; |
| struct vxge_ring *ring; |
| |
| struct __vxge_hw_device *hldev = (struct __vxge_hw_device *) |
| pci_get_drvdata(vdev->pdev); |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| ring = &vdev->vpaths[i].ring; |
| ring->budget = budget; |
| vxge_hw_vpath_poll_rx(ring->handle); |
| pkts_processed += ring->pkts_processed; |
| budget -= ring->pkts_processed; |
| if (budget <= 0) |
| break; |
| } |
| |
| VXGE_COMPLETE_ALL_TX(vdev); |
| |
| if (pkts_processed < budget_org) { |
| napi_complete(napi); |
| /* Re enable the Rx interrupts for the ring */ |
| vxge_hw_device_unmask_all(hldev); |
| vxge_hw_device_flush_io(hldev); |
| } |
| |
| return pkts_processed; |
| } |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| /** |
| * vxge_netpoll - netpoll event handler entry point |
| * @dev : pointer to the device structure. |
| * Description: |
| * This function will be called by upper layer to check for events on the |
| * interface in situations where interrupts are disabled. It is used for |
| * specific in-kernel networking tasks, such as remote consoles and kernel |
| * debugging over the network (example netdump in RedHat). |
| */ |
| static void vxge_netpoll(struct net_device *dev) |
| { |
| struct __vxge_hw_device *hldev; |
| struct vxgedev *vdev; |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev); |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| if (pci_channel_offline(vdev->pdev)) |
| return; |
| |
| disable_irq(dev->irq); |
| vxge_hw_device_clear_tx_rx(hldev); |
| |
| vxge_hw_device_clear_tx_rx(hldev); |
| VXGE_COMPLETE_ALL_RX(vdev); |
| VXGE_COMPLETE_ALL_TX(vdev); |
| |
| enable_irq(dev->irq); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| return; |
| } |
| #endif |
| |
| /* RTH configuration */ |
| static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxge_hw_rth_hash_types hash_types; |
| u8 itable[256] = {0}; /* indirection table */ |
| u8 mtable[256] = {0}; /* CPU to vpath mapping */ |
| int index; |
| |
| /* |
| * Filling |
| * - itable with bucket numbers |
| * - mtable with bucket-to-vpath mapping |
| */ |
| for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) { |
| itable[index] = index; |
| mtable[index] = index % vdev->no_of_vpath; |
| } |
| |
| /* Fill RTH hash types */ |
| hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4; |
| hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4; |
| hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6; |
| hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6; |
| hash_types.hash_type_tcpipv6ex_en = |
| vdev->config.rth_hash_type_tcpipv6ex; |
| hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex; |
| |
| /* set indirection table, bucket-to-vpath mapping */ |
| status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles, |
| vdev->no_of_vpath, |
| mtable, itable, |
| vdev->config.rth_bkt_sz); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "RTH indirection table configuration failed " |
| "for vpath:%d", vdev->vpaths[0].device_id); |
| return status; |
| } |
| |
| /* |
| * Because the itable_set() method uses the active_table field |
| * for the target virtual path the RTH config should be updated |
| * for all VPATHs. The h/w only uses the lowest numbered VPATH |
| * when steering frames. |
| */ |
| for (index = 0; index < vdev->no_of_vpath; index++) { |
| status = vxge_hw_vpath_rts_rth_set( |
| vdev->vpaths[index].handle, |
| vdev->config.rth_algorithm, |
| &hash_types, |
| vdev->config.rth_bkt_sz); |
| |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "RTH configuration failed for vpath:%d", |
| vdev->vpaths[index].device_id); |
| return status; |
| } |
| } |
| |
| return status; |
| } |
| |
| int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac) |
| { |
| struct vxge_mac_addrs *new_mac_entry; |
| u8 *mac_address = NULL; |
| |
| if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT) |
| return TRUE; |
| |
| new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC); |
| if (!new_mac_entry) { |
| vxge_debug_mem(VXGE_ERR, |
| "%s: memory allocation failed", |
| VXGE_DRIVER_NAME); |
| return FALSE; |
| } |
| |
| list_add(&new_mac_entry->item, &vpath->mac_addr_list); |
| |
| /* Copy the new mac address to the list */ |
| mac_address = (u8 *)&new_mac_entry->macaddr; |
| memcpy(mac_address, mac->macaddr, ETH_ALEN); |
| |
| new_mac_entry->state = mac->state; |
| vpath->mac_addr_cnt++; |
| |
| /* Is this a multicast address */ |
| if (0x01 & mac->macaddr[0]) |
| vpath->mcast_addr_cnt++; |
| |
| return TRUE; |
| } |
| |
| /* Add a mac address to DA table */ |
| enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, struct macInfo *mac) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxge_vpath *vpath; |
| enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode; |
| |
| if (0x01 & mac->macaddr[0]) /* multicast address */ |
| duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE; |
| else |
| duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE; |
| |
| vpath = &vdev->vpaths[mac->vpath_no]; |
| status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr, |
| mac->macmask, duplicate_mode); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "DA config add entry failed for vpath:%d", |
| vpath->device_id); |
| } else |
| if (FALSE == vxge_mac_list_add(vpath, mac)) |
| status = -EPERM; |
| |
| return status; |
| } |
| |
| int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac) |
| { |
| struct list_head *entry, *next; |
| u64 del_mac = 0; |
| u8 *mac_address = (u8 *) (&del_mac); |
| |
| /* Copy the mac address to delete from the list */ |
| memcpy(mac_address, mac->macaddr, ETH_ALEN); |
| |
| list_for_each_safe(entry, next, &vpath->mac_addr_list) { |
| if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) { |
| list_del(entry); |
| kfree((struct vxge_mac_addrs *)entry); |
| vpath->mac_addr_cnt--; |
| |
| /* Is this a multicast address */ |
| if (0x01 & mac->macaddr[0]) |
| vpath->mcast_addr_cnt--; |
| return TRUE; |
| } |
| } |
| |
| return FALSE; |
| } |
| /* delete a mac address from DA table */ |
| enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, struct macInfo *mac) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxge_vpath *vpath; |
| |
| vpath = &vdev->vpaths[mac->vpath_no]; |
| status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr, |
| mac->macmask); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "DA config delete entry failed for vpath:%d", |
| vpath->device_id); |
| } else |
| vxge_mac_list_del(vpath, mac); |
| return status; |
| } |
| |
| /* list all mac addresses from DA table */ |
| enum vxge_hw_status |
| static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath, |
| struct macInfo *mac) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| unsigned char macmask[ETH_ALEN]; |
| unsigned char macaddr[ETH_ALEN]; |
| |
| status = vxge_hw_vpath_mac_addr_get(vpath->handle, |
| macaddr, macmask); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "DA config list entry failed for vpath:%d", |
| vpath->device_id); |
| return status; |
| } |
| |
| while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) { |
| |
| status = vxge_hw_vpath_mac_addr_get_next(vpath->handle, |
| macaddr, macmask); |
| if (status != VXGE_HW_OK) |
| break; |
| } |
| |
| return status; |
| } |
| |
| /* Store all vlan ids from the list to the vid table */ |
| enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxgedev *vdev = vpath->vdev; |
| u16 vid; |
| |
| if (vdev->vlgrp && vpath->is_open) { |
| |
| for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { |
| if (!vlan_group_get_device(vdev->vlgrp, vid)) |
| continue; |
| /* Add these vlan to the vid table */ |
| status = vxge_hw_vpath_vid_add(vpath->handle, vid); |
| } |
| } |
| |
| return status; |
| } |
| |
| /* Store all mac addresses from the list to the DA table */ |
| enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath) |
| { |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct macInfo mac_info; |
| u8 *mac_address = NULL; |
| struct list_head *entry, *next; |
| |
| memset(&mac_info, 0, sizeof(struct macInfo)); |
| |
| if (vpath->is_open) { |
| |
| list_for_each_safe(entry, next, &vpath->mac_addr_list) { |
| mac_address = |
| (u8 *)& |
| ((struct vxge_mac_addrs *)entry)->macaddr; |
| memcpy(mac_info.macaddr, mac_address, ETH_ALEN); |
| ((struct vxge_mac_addrs *)entry)->state = |
| VXGE_LL_MAC_ADDR_IN_DA_TABLE; |
| /* does this mac address already exist in da table? */ |
| status = vxge_search_mac_addr_in_da_table(vpath, |
| &mac_info); |
| if (status != VXGE_HW_OK) { |
| /* Add this mac address to the DA table */ |
| status = vxge_hw_vpath_mac_addr_add( |
| vpath->handle, mac_info.macaddr, |
| mac_info.macmask, |
| VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "DA add entry failed for vpath:%d", |
| vpath->device_id); |
| ((struct vxge_mac_addrs *)entry)->state |
| = VXGE_LL_MAC_ADDR_IN_LIST; |
| } |
| } |
| } |
| } |
| |
| return status; |
| } |
| |
| /* reset vpaths */ |
| enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev) |
| { |
| int i; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| if (vdev->vpaths[i].handle) { |
| if (vxge_hw_vpath_reset(vdev->vpaths[i].handle) |
| == VXGE_HW_OK) { |
| if (is_vxge_card_up(vdev) && |
| vxge_hw_vpath_recover_from_reset( |
| vdev->vpaths[i].handle) |
| != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_recover_" |
| "from_reset failed for vpath: " |
| "%d", i); |
| return status; |
| } |
| } else { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_reset failed for " |
| "vpath:%d", i); |
| return status; |
| } |
| } |
| return status; |
| } |
| |
| /* close vpaths */ |
| void vxge_close_vpaths(struct vxgedev *vdev, int index) |
| { |
| int i; |
| for (i = index; i < vdev->no_of_vpath; i++) { |
| if (vdev->vpaths[i].handle && vdev->vpaths[i].is_open) { |
| vxge_hw_vpath_close(vdev->vpaths[i].handle); |
| vdev->stats.vpaths_open--; |
| } |
| vdev->vpaths[i].is_open = 0; |
| vdev->vpaths[i].handle = NULL; |
| } |
| } |
| |
| /* open vpaths */ |
| int vxge_open_vpaths(struct vxgedev *vdev) |
| { |
| enum vxge_hw_status status; |
| int i; |
| u32 vp_id = 0; |
| struct vxge_hw_vpath_attr attr; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_assert(vdev->vpaths[i].is_configured); |
| attr.vp_id = vdev->vpaths[i].device_id; |
| attr.fifo_attr.callback = vxge_xmit_compl; |
| attr.fifo_attr.txdl_term = vxge_tx_term; |
| attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv); |
| attr.fifo_attr.userdata = (void *)&vdev->vpaths[i].fifo; |
| |
| attr.ring_attr.callback = vxge_rx_1b_compl; |
| attr.ring_attr.rxd_init = vxge_rx_initial_replenish; |
| attr.ring_attr.rxd_term = vxge_rx_term; |
| attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv); |
| attr.ring_attr.userdata = (void *)&vdev->vpaths[i].ring; |
| |
| vdev->vpaths[i].ring.ndev = vdev->ndev; |
| vdev->vpaths[i].ring.pdev = vdev->pdev; |
| status = vxge_hw_vpath_open(vdev->devh, &attr, |
| &(vdev->vpaths[i].handle)); |
| if (status == VXGE_HW_OK) { |
| vdev->vpaths[i].fifo.handle = |
| (struct __vxge_hw_fifo *)attr.fifo_attr.userdata; |
| vdev->vpaths[i].ring.handle = |
| (struct __vxge_hw_ring *)attr.ring_attr.userdata; |
| vdev->vpaths[i].fifo.tx_steering_type = |
| vdev->config.tx_steering_type; |
| vdev->vpaths[i].fifo.ndev = vdev->ndev; |
| vdev->vpaths[i].fifo.pdev = vdev->pdev; |
| vdev->vpaths[i].fifo.indicate_max_pkts = |
| vdev->config.fifo_indicate_max_pkts; |
| vdev->vpaths[i].ring.rx_vector_no = 0; |
| vdev->vpaths[i].ring.rx_csum = vdev->rx_csum; |
| vdev->vpaths[i].is_open = 1; |
| vdev->vp_handles[i] = vdev->vpaths[i].handle; |
| vdev->vpaths[i].ring.gro_enable = |
| vdev->config.gro_enable; |
| vdev->vpaths[i].ring.vlan_tag_strip = |
| vdev->vlan_tag_strip; |
| vdev->stats.vpaths_open++; |
| } else { |
| vdev->stats.vpath_open_fail++; |
| vxge_debug_init(VXGE_ERR, |
| "%s: vpath: %d failed to open " |
| "with status: %d", |
| vdev->ndev->name, vdev->vpaths[i].device_id, |
| status); |
| vxge_close_vpaths(vdev, 0); |
| return -EPERM; |
| } |
| |
| vp_id = |
| ((struct __vxge_hw_vpath_handle *)vdev->vpaths[i].handle)-> |
| vpath->vp_id; |
| vdev->vpaths_deployed |= vxge_mBIT(vp_id); |
| } |
| return VXGE_HW_OK; |
| } |
| |
| /* |
| * vxge_isr_napi |
| * @irq: the irq of the device. |
| * @dev_id: a void pointer to the hldev structure of the Titan device |
| * @ptregs: pointer to the registers pushed on the stack. |
| * |
| * This function is the ISR handler of the device when napi is enabled. It |
| * identifies the reason for the interrupt and calls the relevant service |
| * routines. |
| */ |
| static irqreturn_t vxge_isr_napi(int irq, void *dev_id) |
| { |
| struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)dev_id; |
| struct vxgedev *vdev; |
| struct net_device *dev; |
| u64 reason; |
| enum vxge_hw_status status; |
| |
| vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| dev = hldev->ndev; |
| vdev = netdev_priv(dev); |
| |
| if (pci_channel_offline(vdev->pdev)) |
| return IRQ_NONE; |
| |
| if (unlikely(!is_vxge_card_up(vdev))) |
| return IRQ_NONE; |
| |
| status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode, |
| &reason); |
| if (status == VXGE_HW_OK) { |
| vxge_hw_device_mask_all(hldev); |
| |
| if (reason & |
| VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT( |
| vdev->vpaths_deployed >> |
| (64 - VXGE_HW_MAX_VIRTUAL_PATHS))) { |
| |
| vxge_hw_device_clear_tx_rx(hldev); |
| napi_schedule(&vdev->napi); |
| vxge_debug_intr(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| return IRQ_HANDLED; |
| } else |
| vxge_hw_device_unmask_all(hldev); |
| } else if (unlikely((status == VXGE_HW_ERR_VPATH) || |
| (status == VXGE_HW_ERR_CRITICAL) || |
| (status == VXGE_HW_ERR_FIFO))) { |
| vxge_hw_device_mask_all(hldev); |
| vxge_hw_device_flush_io(hldev); |
| return IRQ_HANDLED; |
| } else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE)) |
| return IRQ_HANDLED; |
| |
| vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__); |
| return IRQ_NONE; |
| } |
| |
| #ifdef CONFIG_PCI_MSI |
| |
| static irqreturn_t |
| vxge_tx_msix_handle(int irq, void *dev_id) |
| { |
| struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id; |
| |
| VXGE_COMPLETE_VPATH_TX(fifo); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t |
| vxge_rx_msix_napi_handle(int irq, void *dev_id) |
| { |
| struct vxge_ring *ring = (struct vxge_ring *)dev_id; |
| |
| /* MSIX_IDX for Rx is 1 */ |
| vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle, |
| ring->rx_vector_no); |
| |
| napi_schedule(&ring->napi); |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t |
| vxge_alarm_msix_handle(int irq, void *dev_id) |
| { |
| int i; |
| enum vxge_hw_status status; |
| struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id; |
| struct vxgedev *vdev = vpath->vdev; |
| int alarm_msix_id = |
| VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, |
| alarm_msix_id); |
| |
| status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle, |
| vdev->exec_mode); |
| if (status == VXGE_HW_OK) { |
| |
| vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle, |
| alarm_msix_id); |
| continue; |
| } |
| vxge_debug_intr(VXGE_ERR, |
| "%s: vxge_hw_vpath_alarm_process failed %x ", |
| VXGE_DRIVER_NAME, status); |
| } |
| return IRQ_HANDLED; |
| } |
| |
| static int vxge_alloc_msix(struct vxgedev *vdev) |
| { |
| int j, i, ret = 0; |
| int intr_cnt = 0; |
| int alarm_msix_id = 0, msix_intr_vect = 0; |
| vdev->intr_cnt = 0; |
| |
| /* Tx/Rx MSIX Vectors count */ |
| vdev->intr_cnt = vdev->no_of_vpath * 2; |
| |
| /* Alarm MSIX Vectors count */ |
| vdev->intr_cnt++; |
| |
| intr_cnt = (vdev->max_vpath_supported * 2) + 1; |
| vdev->entries = kzalloc(intr_cnt * sizeof(struct msix_entry), |
| GFP_KERNEL); |
| if (!vdev->entries) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: memory allocation failed", |
| VXGE_DRIVER_NAME); |
| return -ENOMEM; |
| } |
| |
| vdev->vxge_entries = kzalloc(intr_cnt * sizeof(struct vxge_msix_entry), |
| GFP_KERNEL); |
| if (!vdev->vxge_entries) { |
| vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", |
| VXGE_DRIVER_NAME); |
| kfree(vdev->entries); |
| return -ENOMEM; |
| } |
| |
| /* Last vector in the list is used for alarm */ |
| alarm_msix_id = VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2; |
| for (i = 0, j = 0; i < vdev->max_vpath_supported; i++) { |
| |
| msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE; |
| |
| /* Initialize the fifo vector */ |
| vdev->entries[j].entry = msix_intr_vect; |
| vdev->vxge_entries[j].entry = msix_intr_vect; |
| vdev->vxge_entries[j].in_use = 0; |
| j++; |
| |
| /* Initialize the ring vector */ |
| vdev->entries[j].entry = msix_intr_vect + 1; |
| vdev->vxge_entries[j].entry = msix_intr_vect + 1; |
| vdev->vxge_entries[j].in_use = 0; |
| j++; |
| } |
| |
| /* Initialize the alarm vector */ |
| vdev->entries[j].entry = alarm_msix_id; |
| vdev->vxge_entries[j].entry = alarm_msix_id; |
| vdev->vxge_entries[j].in_use = 0; |
| |
| ret = pci_enable_msix(vdev->pdev, vdev->entries, intr_cnt); |
| /* if driver request exceeeds available irq's, request with a small |
| * number. |
| */ |
| if (ret > 0) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: MSI-X enable failed for %d vectors, available: %d", |
| VXGE_DRIVER_NAME, intr_cnt, ret); |
| vdev->max_vpath_supported = vdev->no_of_vpath; |
| intr_cnt = (vdev->max_vpath_supported * 2) + 1; |
| |
| /* Reset the alarm vector setting */ |
| vdev->entries[j].entry = 0; |
| vdev->vxge_entries[j].entry = 0; |
| |
| /* Initialize the alarm vector with new setting */ |
| vdev->entries[intr_cnt - 1].entry = alarm_msix_id; |
| vdev->vxge_entries[intr_cnt - 1].entry = alarm_msix_id; |
| vdev->vxge_entries[intr_cnt - 1].in_use = 0; |
| |
| ret = pci_enable_msix(vdev->pdev, vdev->entries, intr_cnt); |
| if (!ret) |
| vxge_debug_init(VXGE_ERR, |
| "%s: MSI-X enabled for %d vectors", |
| VXGE_DRIVER_NAME, intr_cnt); |
| } |
| |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: MSI-X enable failed for %d vectors, ret: %d", |
| VXGE_DRIVER_NAME, intr_cnt, ret); |
| kfree(vdev->entries); |
| kfree(vdev->vxge_entries); |
| vdev->entries = NULL; |
| vdev->vxge_entries = NULL; |
| return -ENODEV; |
| } |
| return 0; |
| } |
| |
| static int vxge_enable_msix(struct vxgedev *vdev) |
| { |
| |
| int i, ret = 0; |
| enum vxge_hw_status status; |
| /* 0 - Tx, 1 - Rx */ |
| int tim_msix_id[4]; |
| int alarm_msix_id = 0, msix_intr_vect = 0;; |
| vdev->intr_cnt = 0; |
| |
| /* allocate msix vectors */ |
| ret = vxge_alloc_msix(vdev); |
| if (!ret) { |
| /* Last vector in the list is used for alarm */ |
| alarm_msix_id = |
| VXGE_HW_VPATH_MSIX_ACTIVE * vdev->no_of_vpath - 2; |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| |
| /* If fifo or ring are not enabled |
| the MSIX vector for that should be set to 0 |
| Hence initializeing this array to all 0s. |
| */ |
| memset(tim_msix_id, 0, sizeof(tim_msix_id)); |
| msix_intr_vect = i * VXGE_HW_VPATH_MSIX_ACTIVE; |
| tim_msix_id[0] = msix_intr_vect; |
| |
| tim_msix_id[1] = msix_intr_vect + 1; |
| vdev->vpaths[i].ring.rx_vector_no = tim_msix_id[1]; |
| |
| status = vxge_hw_vpath_msix_set( |
| vdev->vpaths[i].handle, |
| tim_msix_id, alarm_msix_id); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "vxge_hw_vpath_msix_set " |
| "failed with status : %x", status); |
| kfree(vdev->entries); |
| kfree(vdev->vxge_entries); |
| pci_disable_msix(vdev->pdev); |
| return -ENODEV; |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| static void vxge_rem_msix_isr(struct vxgedev *vdev) |
| { |
| int intr_cnt; |
| |
| for (intr_cnt = 0; intr_cnt < (vdev->max_vpath_supported * 2 + 1); |
| intr_cnt++) { |
| if (vdev->vxge_entries[intr_cnt].in_use) { |
| synchronize_irq(vdev->entries[intr_cnt].vector); |
| free_irq(vdev->entries[intr_cnt].vector, |
| vdev->vxge_entries[intr_cnt].arg); |
| vdev->vxge_entries[intr_cnt].in_use = 0; |
| } |
| } |
| |
| kfree(vdev->entries); |
| kfree(vdev->vxge_entries); |
| vdev->entries = NULL; |
| vdev->vxge_entries = NULL; |
| |
| if (vdev->config.intr_type == MSI_X) |
| pci_disable_msix(vdev->pdev); |
| } |
| #endif |
| |
| static void vxge_rem_isr(struct vxgedev *vdev) |
| { |
| struct __vxge_hw_device *hldev; |
| hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev); |
| |
| #ifdef CONFIG_PCI_MSI |
| if (vdev->config.intr_type == MSI_X) { |
| vxge_rem_msix_isr(vdev); |
| } else |
| #endif |
| if (vdev->config.intr_type == INTA) { |
| synchronize_irq(vdev->pdev->irq); |
| free_irq(vdev->pdev->irq, hldev); |
| } |
| } |
| |
| static int vxge_add_isr(struct vxgedev *vdev) |
| { |
| int ret = 0; |
| struct __vxge_hw_device *hldev = |
| (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev); |
| #ifdef CONFIG_PCI_MSI |
| int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0; |
| u64 function_mode = vdev->config.device_hw_info.function_mode; |
| int pci_fun = PCI_FUNC(vdev->pdev->devfn); |
| |
| if (vdev->config.intr_type == MSI_X) |
| ret = vxge_enable_msix(vdev); |
| |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME); |
| if ((function_mode == VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) && |
| test_and_set_bit(__VXGE_STATE_CARD_UP, |
| &driver_config->inta_dev_open)) |
| return VXGE_HW_FAIL; |
| else { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Defaulting to INTA", VXGE_DRIVER_NAME); |
| vdev->config.intr_type = INTA; |
| vxge_hw_device_set_intr_type(vdev->devh, |
| VXGE_HW_INTR_MODE_IRQLINE); |
| vxge_close_vpaths(vdev, 1); |
| vdev->no_of_vpath = 1; |
| vdev->stats.vpaths_open = 1; |
| } |
| } |
| |
| if (vdev->config.intr_type == MSI_X) { |
| for (intr_idx = 0; |
| intr_idx < (vdev->no_of_vpath * |
| VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) { |
| |
| msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE; |
| irq_req = 0; |
| |
| switch (msix_idx) { |
| case 0: |
| snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, |
| "%s:vxge fn: %d vpath: %d Tx MSI-X: %d", |
| vdev->ndev->name, pci_fun, vp_idx, |
| vdev->entries[intr_cnt].entry); |
| ret = request_irq( |
| vdev->entries[intr_cnt].vector, |
| vxge_tx_msix_handle, 0, |
| vdev->desc[intr_cnt], |
| &vdev->vpaths[vp_idx].fifo); |
| vdev->vxge_entries[intr_cnt].arg = |
| &vdev->vpaths[vp_idx].fifo; |
| irq_req = 1; |
| break; |
| case 1: |
| snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, |
| "%s:vxge fn: %d vpath: %d Rx MSI-X: %d", |
| vdev->ndev->name, pci_fun, vp_idx, |
| vdev->entries[intr_cnt].entry); |
| ret = request_irq( |
| vdev->entries[intr_cnt].vector, |
| vxge_rx_msix_napi_handle, |
| 0, |
| vdev->desc[intr_cnt], |
| &vdev->vpaths[vp_idx].ring); |
| vdev->vxge_entries[intr_cnt].arg = |
| &vdev->vpaths[vp_idx].ring; |
| irq_req = 1; |
| break; |
| } |
| |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: MSIX - %d Registration failed", |
| vdev->ndev->name, intr_cnt); |
| vxge_rem_msix_isr(vdev); |
| if ((function_mode == |
| VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) && |
| test_and_set_bit(__VXGE_STATE_CARD_UP, |
| &driver_config->inta_dev_open)) |
| return VXGE_HW_FAIL; |
| else { |
| vxge_hw_device_set_intr_type( |
| vdev->devh, |
| VXGE_HW_INTR_MODE_IRQLINE); |
| vdev->config.intr_type = INTA; |
| vxge_debug_init(VXGE_ERR, |
| "%s: Defaulting to INTA" |
| , vdev->ndev->name); |
| vxge_close_vpaths(vdev, 1); |
| vdev->no_of_vpath = 1; |
| vdev->stats.vpaths_open = 1; |
| goto INTA_MODE; |
| } |
| } |
| |
| if (irq_req) { |
| /* We requested for this msix interrupt */ |
| vdev->vxge_entries[intr_cnt].in_use = 1; |
| vxge_hw_vpath_msix_unmask( |
| vdev->vpaths[vp_idx].handle, |
| intr_idx); |
| intr_cnt++; |
| } |
| |
| /* Point to next vpath handler */ |
| if (((intr_idx + 1) % VXGE_HW_VPATH_MSIX_ACTIVE == 0) |
| && (vp_idx < (vdev->no_of_vpath - 1))) |
| vp_idx++; |
| } |
| |
| intr_cnt = vdev->max_vpath_supported * 2; |
| snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN, |
| "%s:vxge Alarm fn: %d MSI-X: %d", |
| vdev->ndev->name, pci_fun, |
| vdev->entries[intr_cnt].entry); |
| /* For Alarm interrupts */ |
| ret = request_irq(vdev->entries[intr_cnt].vector, |
| vxge_alarm_msix_handle, 0, |
| vdev->desc[intr_cnt], |
| &vdev->vpaths[vp_idx]); |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: MSIX - %d Registration failed", |
| vdev->ndev->name, intr_cnt); |
| vxge_rem_msix_isr(vdev); |
| if ((function_mode == |
| VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) && |
| test_and_set_bit(__VXGE_STATE_CARD_UP, |
| &driver_config->inta_dev_open)) |
| return VXGE_HW_FAIL; |
| else { |
| vxge_hw_device_set_intr_type(vdev->devh, |
| VXGE_HW_INTR_MODE_IRQLINE); |
| vdev->config.intr_type = INTA; |
| vxge_debug_init(VXGE_ERR, |
| "%s: Defaulting to INTA", |
| vdev->ndev->name); |
| vxge_close_vpaths(vdev, 1); |
| vdev->no_of_vpath = 1; |
| vdev->stats.vpaths_open = 1; |
| goto INTA_MODE; |
| } |
| } |
| |
| vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle, |
| intr_idx - 2); |
| vdev->vxge_entries[intr_cnt].in_use = 1; |
| vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[vp_idx]; |
| } |
| INTA_MODE: |
| #endif |
| snprintf(vdev->desc[0], VXGE_INTR_STRLEN, "%s:vxge", vdev->ndev->name); |
| |
| if (vdev->config.intr_type == INTA) { |
| ret = request_irq((int) vdev->pdev->irq, |
| vxge_isr_napi, |
| IRQF_SHARED, vdev->desc[0], hldev); |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s %s-%d: ISR registration failed", |
| VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq); |
| return -ENODEV; |
| } |
| vxge_debug_init(VXGE_TRACE, |
| "new %s-%d line allocated", |
| "IRQ", vdev->pdev->irq); |
| } |
| |
| return VXGE_HW_OK; |
| } |
| |
| static void vxge_poll_vp_reset(unsigned long data) |
| { |
| struct vxgedev *vdev = (struct vxgedev *)data; |
| int i, j = 0; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| if (test_bit(i, &vdev->vp_reset)) { |
| vxge_reset_vpath(vdev, i); |
| j++; |
| } |
| } |
| if (j && (vdev->config.intr_type != MSI_X)) { |
| vxge_hw_device_unmask_all(vdev->devh); |
| vxge_hw_device_flush_io(vdev->devh); |
| } |
| |
| mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2); |
| } |
| |
| static void vxge_poll_vp_lockup(unsigned long data) |
| { |
| struct vxgedev *vdev = (struct vxgedev *)data; |
| int i; |
| struct vxge_ring *ring; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| ring = &vdev->vpaths[i].ring; |
| /* Did this vpath received any packets */ |
| if (ring->stats.prev_rx_frms == ring->stats.rx_frms) { |
| status = vxge_hw_vpath_check_leak(ring->handle); |
| |
| /* Did it received any packets last time */ |
| if ((VXGE_HW_FAIL == status) && |
| (VXGE_HW_FAIL == ring->last_status)) { |
| |
| /* schedule vpath reset */ |
| if (!test_and_set_bit(i, &vdev->vp_reset)) { |
| |
| /* disable interrupts for this vpath */ |
| vxge_vpath_intr_disable(vdev, i); |
| |
| /* stop the queue for this vpath */ |
| vxge_stop_tx_queue(&vdev->vpaths[i]. |
| fifo); |
| continue; |
| } |
| } |
| } |
| ring->stats.prev_rx_frms = ring->stats.rx_frms; |
| ring->last_status = status; |
| } |
| |
| /* Check every 1 milli second */ |
| mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000); |
| } |
| |
| /** |
| * vxge_open |
| * @dev: pointer to the device structure. |
| * |
| * This function is the open entry point of the driver. It mainly calls a |
| * function to allocate Rx buffers and inserts them into the buffer |
| * descriptors and then enables the Rx part of the NIC. |
| * Return value: '0' on success and an appropriate (-)ve integer as |
| * defined in errno.h file on failure. |
| */ |
| int |
| vxge_open(struct net_device *dev) |
| { |
| enum vxge_hw_status status; |
| struct vxgedev *vdev; |
| struct __vxge_hw_device *hldev; |
| int ret = 0; |
| int i; |
| u64 val64, function_mode; |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d", dev->name, __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev); |
| function_mode = vdev->config.device_hw_info.function_mode; |
| |
| /* make sure you have link off by default every time Nic is |
| * initialized */ |
| netif_carrier_off(dev); |
| |
| /* Check for another device already opn with INTA */ |
| if ((function_mode == VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION) && |
| test_bit(__VXGE_STATE_CARD_UP, &driver_config->inta_dev_open)) { |
| ret = -EPERM; |
| goto out0; |
| } |
| |
| /* Open VPATHs */ |
| status = vxge_open_vpaths(vdev); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: fatal: Vpath open failed", vdev->ndev->name); |
| ret = -EPERM; |
| goto out0; |
| } |
| |
| vdev->mtu = dev->mtu; |
| |
| status = vxge_add_isr(vdev); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: fatal: ISR add failed", dev->name); |
| ret = -EPERM; |
| goto out1; |
| } |
| |
| |
| if (vdev->config.intr_type != MSI_X) { |
| netif_napi_add(dev, &vdev->napi, vxge_poll_inta, |
| vdev->config.napi_weight); |
| napi_enable(&vdev->napi); |
| } else { |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| netif_napi_add(dev, &vdev->vpaths[i].ring.napi, |
| vxge_poll_msix, vdev->config.napi_weight); |
| napi_enable(&vdev->vpaths[i].ring.napi); |
| } |
| } |
| |
| /* configure RTH */ |
| if (vdev->config.rth_steering) { |
| status = vxge_rth_configure(vdev); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: fatal: RTH configuration failed", |
| dev->name); |
| ret = -EPERM; |
| goto out2; |
| } |
| } |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| /* set initial mtu before enabling the device */ |
| status = vxge_hw_vpath_mtu_set(vdev->vpaths[i].handle, |
| vdev->mtu); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: fatal: can not set new MTU", dev->name); |
| ret = -EPERM; |
| goto out2; |
| } |
| } |
| |
| VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev); |
| vxge_debug_init(vdev->level_trace, |
| "%s: MTU is %d", vdev->ndev->name, vdev->mtu); |
| VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev); |
| |
| /* Reprogram the DA table with populated mac addresses */ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_restore_vpath_mac_addr(&vdev->vpaths[i]); |
| vxge_restore_vpath_vid_table(&vdev->vpaths[i]); |
| } |
| |
| /* Enable vpath to sniff all unicast/multicast traffic that not |
| * addressed to them. We allow promiscous mode for PF only |
| */ |
| |
| val64 = 0; |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) |
| val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i); |
| |
| vxge_hw_mgmt_reg_write(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof(struct vxge_hw_mrpcim_reg, |
| rxmac_authorize_all_addr), |
| val64); |
| |
| vxge_hw_mgmt_reg_write(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof(struct vxge_hw_mrpcim_reg, |
| rxmac_authorize_all_vid), |
| val64); |
| |
| vxge_set_multicast(dev); |
| |
| /* Enabling Bcast and mcast for all vpath */ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| status = vxge_hw_vpath_bcast_enable(vdev->vpaths[i].handle); |
| if (status != VXGE_HW_OK) |
| vxge_debug_init(VXGE_ERR, |
| "%s : Can not enable bcast for vpath " |
| "id %d", dev->name, i); |
| if (vdev->config.addr_learn_en) { |
| status = |
| vxge_hw_vpath_mcast_enable(vdev->vpaths[i].handle); |
| if (status != VXGE_HW_OK) |
| vxge_debug_init(VXGE_ERR, |
| "%s : Can not enable mcast for vpath " |
| "id %d", dev->name, i); |
| } |
| } |
| |
| vxge_hw_device_setpause_data(vdev->devh, 0, |
| vdev->config.tx_pause_enable, |
| vdev->config.rx_pause_enable); |
| |
| if (vdev->vp_reset_timer.function == NULL) |
| vxge_os_timer(vdev->vp_reset_timer, |
| vxge_poll_vp_reset, vdev, (HZ/2)); |
| |
| if (vdev->vp_lockup_timer.function == NULL) |
| vxge_os_timer(vdev->vp_lockup_timer, |
| vxge_poll_vp_lockup, vdev, (HZ/2)); |
| |
| set_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| |
| smp_wmb(); |
| |
| if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) { |
| netif_carrier_on(vdev->ndev); |
| printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name); |
| vdev->stats.link_up++; |
| } |
| |
| vxge_hw_device_intr_enable(vdev->devh); |
| |
| smp_wmb(); |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_hw_vpath_enable(vdev->vpaths[i].handle); |
| smp_wmb(); |
| vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle); |
| } |
| |
| vxge_start_all_tx_queue(vdev); |
| goto out0; |
| |
| out2: |
| vxge_rem_isr(vdev); |
| |
| /* Disable napi */ |
| if (vdev->config.intr_type != MSI_X) |
| napi_disable(&vdev->napi); |
| else { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| napi_disable(&vdev->vpaths[i].ring.napi); |
| } |
| |
| out1: |
| vxge_close_vpaths(vdev, 0); |
| out0: |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", |
| dev->name, __func__, __LINE__); |
| return ret; |
| } |
| |
| /* Loop throught the mac address list and delete all the entries */ |
| void vxge_free_mac_add_list(struct vxge_vpath *vpath) |
| { |
| |
| struct list_head *entry, *next; |
| if (list_empty(&vpath->mac_addr_list)) |
| return; |
| |
| list_for_each_safe(entry, next, &vpath->mac_addr_list) { |
| list_del(entry); |
| kfree((struct vxge_mac_addrs *)entry); |
| } |
| } |
| |
| static void vxge_napi_del_all(struct vxgedev *vdev) |
| { |
| int i; |
| if (vdev->config.intr_type != MSI_X) |
| netif_napi_del(&vdev->napi); |
| else { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| netif_napi_del(&vdev->vpaths[i].ring.napi); |
| } |
| return; |
| } |
| |
| int do_vxge_close(struct net_device *dev, int do_io) |
| { |
| enum vxge_hw_status status; |
| struct vxgedev *vdev; |
| struct __vxge_hw_device *hldev; |
| int i; |
| u64 val64, vpath_vector; |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d", |
| dev->name, __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev); |
| |
| /* If vxge_handle_crit_err task is executing, |
| * wait till it completes. */ |
| while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) |
| msleep(50); |
| |
| clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| if (do_io) { |
| /* Put the vpath back in normal mode */ |
| vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id); |
| status = vxge_hw_mgmt_reg_read(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof( |
| struct vxge_hw_mrpcim_reg, |
| rts_mgr_cbasin_cfg), |
| &val64); |
| |
| if (status == VXGE_HW_OK) { |
| val64 &= ~vpath_vector; |
| status = vxge_hw_mgmt_reg_write(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof( |
| struct vxge_hw_mrpcim_reg, |
| rts_mgr_cbasin_cfg), |
| val64); |
| } |
| |
| /* Remove the function 0 from promiscous mode */ |
| vxge_hw_mgmt_reg_write(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof(struct vxge_hw_mrpcim_reg, |
| rxmac_authorize_all_addr), |
| 0); |
| |
| vxge_hw_mgmt_reg_write(vdev->devh, |
| vxge_hw_mgmt_reg_type_mrpcim, |
| 0, |
| (ulong)offsetof(struct vxge_hw_mrpcim_reg, |
| rxmac_authorize_all_vid), |
| 0); |
| |
| smp_wmb(); |
| } |
| del_timer_sync(&vdev->vp_lockup_timer); |
| |
| del_timer_sync(&vdev->vp_reset_timer); |
| |
| /* Disable napi */ |
| if (vdev->config.intr_type != MSI_X) |
| napi_disable(&vdev->napi); |
| else { |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| napi_disable(&vdev->vpaths[i].ring.napi); |
| } |
| |
| netif_carrier_off(vdev->ndev); |
| printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name); |
| vxge_stop_all_tx_queue(vdev); |
| |
| /* Note that at this point xmit() is stopped by upper layer */ |
| if (do_io) |
| vxge_hw_device_intr_disable(vdev->devh); |
| |
| mdelay(1000); |
| |
| vxge_rem_isr(vdev); |
| |
| vxge_napi_del_all(vdev); |
| |
| if (do_io) |
| vxge_reset_all_vpaths(vdev); |
| |
| vxge_close_vpaths(vdev, 0); |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s: %s:%d Exiting...", dev->name, __func__, __LINE__); |
| |
| clear_bit(__VXGE_STATE_CARD_UP, &driver_config->inta_dev_open); |
| clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state); |
| |
| return 0; |
| } |
| |
| /** |
| * vxge_close |
| * @dev: device pointer. |
| * |
| * This is the stop entry point of the driver. It needs to undo exactly |
| * whatever was done by the open entry point, thus it's usually referred to |
| * as the close function.Among other things this function mainly stops the |
| * Rx side of the NIC and frees all the Rx buffers in the Rx rings. |
| * Return value: '0' on success and an appropriate (-)ve integer as |
| * defined in errno.h file on failure. |
| */ |
| int |
| vxge_close(struct net_device *dev) |
| { |
| do_vxge_close(dev, 1); |
| return 0; |
| } |
| |
| /** |
| * vxge_change_mtu |
| * @dev: net device pointer. |
| * @new_mtu :the new MTU size for the device. |
| * |
| * A driver entry point to change MTU size for the device. Before changing |
| * the MTU the device must be stopped. |
| */ |
| static int vxge_change_mtu(struct net_device *dev, int new_mtu) |
| { |
| struct vxgedev *vdev = netdev_priv(dev); |
| |
| vxge_debug_entryexit(vdev->level_trace, |
| "%s:%d", __func__, __LINE__); |
| if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) { |
| vxge_debug_init(vdev->level_err, |
| "%s: mtu size is invalid", dev->name); |
| return -EPERM; |
| } |
| |
| /* check if device is down already */ |
| if (unlikely(!is_vxge_card_up(vdev))) { |
| /* just store new value, will use later on open() */ |
| dev->mtu = new_mtu; |
| vxge_debug_init(vdev->level_err, |
| "%s", "device is down on MTU change"); |
| return 0; |
| } |
| |
| vxge_debug_init(vdev->level_trace, |
| "trying to apply new MTU %d", new_mtu); |
| |
| if (vxge_close(dev)) |
| return -EIO; |
| |
| dev->mtu = new_mtu; |
| vdev->mtu = new_mtu; |
| |
| if (vxge_open(dev)) |
| return -EIO; |
| |
| vxge_debug_init(vdev->level_trace, |
| "%s: MTU changed to %d", vdev->ndev->name, new_mtu); |
| |
| vxge_debug_entryexit(vdev->level_trace, |
| "%s:%d Exiting...", __func__, __LINE__); |
| |
| return 0; |
| } |
| |
| /** |
| * vxge_get_stats |
| * @dev: pointer to the device structure |
| * |
| * Updates the device statistics structure. This function updates the device |
| * statistics structure in the net_device structure and returns a pointer |
| * to the same. |
| */ |
| static struct net_device_stats * |
| vxge_get_stats(struct net_device *dev) |
| { |
| struct vxgedev *vdev; |
| struct net_device_stats *net_stats; |
| int k; |
| |
| vdev = netdev_priv(dev); |
| |
| net_stats = &vdev->stats.net_stats; |
| |
| memset(net_stats, 0, sizeof(struct net_device_stats)); |
| |
| for (k = 0; k < vdev->no_of_vpath; k++) { |
| net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms; |
| net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes; |
| net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors; |
| net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast; |
| net_stats->rx_dropped += |
| vdev->vpaths[k].ring.stats.rx_dropped; |
| |
| net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms; |
| net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes; |
| net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors; |
| } |
| |
| return net_stats; |
| } |
| |
| /** |
| * vxge_ioctl |
| * @dev: Device pointer. |
| * @ifr: An IOCTL specific structure, that can contain a pointer to |
| * a proprietary structure used to pass information to the driver. |
| * @cmd: This is used to distinguish between the different commands that |
| * can be passed to the IOCTL functions. |
| * |
| * Entry point for the Ioctl. |
| */ |
| static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| /** |
| * vxge_tx_watchdog |
| * @dev: pointer to net device structure |
| * |
| * Watchdog for transmit side. |
| * This function is triggered if the Tx Queue is stopped |
| * for a pre-defined amount of time when the Interface is still up. |
| */ |
| static void |
| vxge_tx_watchdog(struct net_device *dev) |
| { |
| struct vxgedev *vdev; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| vdev->cric_err_event = VXGE_HW_EVENT_RESET_START; |
| |
| vxge_reset(vdev); |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| /** |
| * vxge_vlan_rx_register |
| * @dev: net device pointer. |
| * @grp: vlan group |
| * |
| * Vlan group registration |
| */ |
| static void |
| vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) |
| { |
| struct vxgedev *vdev; |
| struct vxge_vpath *vpath; |
| int vp; |
| u64 vid; |
| enum vxge_hw_status status; |
| int i; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| vpath = &vdev->vpaths[0]; |
| if ((NULL == grp) && (vpath->is_open)) { |
| /* Get the first vlan */ |
| status = vxge_hw_vpath_vid_get(vpath->handle, &vid); |
| |
| while (status == VXGE_HW_OK) { |
| |
| /* Delete this vlan from the vid table */ |
| for (vp = 0; vp < vdev->no_of_vpath; vp++) { |
| vpath = &vdev->vpaths[vp]; |
| if (!vpath->is_open) |
| continue; |
| |
| vxge_hw_vpath_vid_delete(vpath->handle, vid); |
| } |
| |
| /* Get the next vlan to be deleted */ |
| vpath = &vdev->vpaths[0]; |
| status = vxge_hw_vpath_vid_get(vpath->handle, &vid); |
| } |
| } |
| |
| vdev->vlgrp = grp; |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| if (vdev->vpaths[i].is_configured) |
| vdev->vpaths[i].ring.vlgrp = grp; |
| } |
| |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| /** |
| * vxge_vlan_rx_add_vid |
| * @dev: net device pointer. |
| * @vid: vid |
| * |
| * Add the vlan id to the devices vlan id table |
| */ |
| static void |
| vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct vxgedev *vdev; |
| struct vxge_vpath *vpath; |
| int vp_id; |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| /* Add these vlan to the vid table */ |
| for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { |
| vpath = &vdev->vpaths[vp_id]; |
| if (!vpath->is_open) |
| continue; |
| vxge_hw_vpath_vid_add(vpath->handle, vid); |
| } |
| } |
| |
| /** |
| * vxge_vlan_rx_add_vid |
| * @dev: net device pointer. |
| * @vid: vid |
| * |
| * Remove the vlan id from the device's vlan id table |
| */ |
| static void |
| vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| { |
| struct vxgedev *vdev; |
| struct vxge_vpath *vpath; |
| int vp_id; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| |
| vdev = (struct vxgedev *)netdev_priv(dev); |
| |
| vlan_group_set_device(vdev->vlgrp, vid, NULL); |
| |
| /* Delete this vlan from the vid table */ |
| for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) { |
| vpath = &vdev->vpaths[vp_id]; |
| if (!vpath->is_open) |
| continue; |
| vxge_hw_vpath_vid_delete(vpath->handle, vid); |
| } |
| vxge_debug_entryexit(VXGE_TRACE, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| static const struct net_device_ops vxge_netdev_ops = { |
| .ndo_open = vxge_open, |
| .ndo_stop = vxge_close, |
| .ndo_get_stats = vxge_get_stats, |
| .ndo_start_xmit = vxge_xmit, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_set_multicast_list = vxge_set_multicast, |
| |
| .ndo_do_ioctl = vxge_ioctl, |
| |
| .ndo_set_mac_address = vxge_set_mac_addr, |
| .ndo_change_mtu = vxge_change_mtu, |
| .ndo_vlan_rx_register = vxge_vlan_rx_register, |
| .ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid, |
| .ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid, |
| |
| .ndo_tx_timeout = vxge_tx_watchdog, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = vxge_netpoll, |
| #endif |
| }; |
| |
| int __devinit vxge_device_register(struct __vxge_hw_device *hldev, |
| struct vxge_config *config, |
| int high_dma, int no_of_vpath, |
| struct vxgedev **vdev_out) |
| { |
| struct net_device *ndev; |
| enum vxge_hw_status status = VXGE_HW_OK; |
| struct vxgedev *vdev; |
| int i, ret = 0, no_of_queue = 1; |
| u64 stat; |
| |
| *vdev_out = NULL; |
| if (config->tx_steering_type == TX_MULTIQ_STEERING) |
| no_of_queue = no_of_vpath; |
| |
| ndev = alloc_etherdev_mq(sizeof(struct vxgedev), |
| no_of_queue); |
| if (ndev == NULL) { |
| vxge_debug_init( |
| vxge_hw_device_trace_level_get(hldev), |
| "%s : device allocation failed", __func__); |
| ret = -ENODEV; |
| goto _out0; |
| } |
| |
| vxge_debug_entryexit( |
| vxge_hw_device_trace_level_get(hldev), |
| "%s: %s:%d Entering...", |
| ndev->name, __func__, __LINE__); |
| |
| vdev = netdev_priv(ndev); |
| memset(vdev, 0, sizeof(struct vxgedev)); |
| |
| vdev->ndev = ndev; |
| vdev->devh = hldev; |
| vdev->pdev = hldev->pdev; |
| memcpy(&vdev->config, config, sizeof(struct vxge_config)); |
| vdev->rx_csum = 1; /* Enable Rx CSUM by default. */ |
| |
| SET_NETDEV_DEV(ndev, &vdev->pdev->dev); |
| |
| ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | |
| NETIF_F_HW_VLAN_FILTER; |
| /* Driver entry points */ |
| ndev->irq = vdev->pdev->irq; |
| ndev->base_addr = (unsigned long) hldev->bar0; |
| |
| ndev->netdev_ops = &vxge_netdev_ops; |
| |
| ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT; |
| |
| initialize_ethtool_ops(ndev); |
| |
| /* Allocate memory for vpath */ |
| vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) * |
| no_of_vpath, GFP_KERNEL); |
| if (!vdev->vpaths) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: vpath memory allocation failed", |
| vdev->ndev->name); |
| ret = -ENODEV; |
| goto _out1; |
| } |
| |
| ndev->features |= NETIF_F_SG; |
| |
| ndev->features |= NETIF_F_HW_CSUM; |
| vxge_debug_init(vxge_hw_device_trace_level_get(hldev), |
| "%s : checksuming enabled", __func__); |
| |
| if (high_dma) { |
| ndev->features |= NETIF_F_HIGHDMA; |
| vxge_debug_init(vxge_hw_device_trace_level_get(hldev), |
| "%s : using High DMA", __func__); |
| } |
| |
| ndev->features |= NETIF_F_TSO | NETIF_F_TSO6; |
| |
| if (vdev->config.gro_enable) |
| ndev->features |= NETIF_F_GRO; |
| |
| if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) |
| ndev->real_num_tx_queues = no_of_vpath; |
| |
| #ifdef NETIF_F_LLTX |
| ndev->features |= NETIF_F_LLTX; |
| #endif |
| |
| for (i = 0; i < no_of_vpath; i++) |
| spin_lock_init(&vdev->vpaths[i].fifo.tx_lock); |
| |
| if (register_netdev(ndev)) { |
| vxge_debug_init(vxge_hw_device_trace_level_get(hldev), |
| "%s: %s : device registration failed!", |
| ndev->name, __func__); |
| ret = -ENODEV; |
| goto _out2; |
| } |
| |
| /* Set the factory defined MAC address initially */ |
| ndev->addr_len = ETH_ALEN; |
| |
| /* Make Link state as off at this point, when the Link change |
| * interrupt comes the state will be automatically changed to |
| * the right state. |
| */ |
| netif_carrier_off(ndev); |
| |
| vxge_debug_init(vxge_hw_device_trace_level_get(hldev), |
| "%s: Ethernet device registered", |
| ndev->name); |
| |
| *vdev_out = vdev; |
| |
| /* Resetting the Device stats */ |
| status = vxge_hw_mrpcim_stats_access( |
| hldev, |
| VXGE_HW_STATS_OP_CLEAR_ALL_STATS, |
| 0, |
| 0, |
| &stat); |
| |
| if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION) |
| vxge_debug_init( |
| vxge_hw_device_trace_level_get(hldev), |
| "%s: device stats clear returns" |
| "VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name); |
| |
| vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev), |
| "%s: %s:%d Exiting...", |
| ndev->name, __func__, __LINE__); |
| |
| return ret; |
| _out2: |
| kfree(vdev->vpaths); |
| _out1: |
| free_netdev(ndev); |
| _out0: |
| return ret; |
| } |
| |
| /* |
| * vxge_device_unregister |
| * |
| * This function will unregister and free network device |
| */ |
| void |
| vxge_device_unregister(struct __vxge_hw_device *hldev) |
| { |
| struct vxgedev *vdev; |
| struct net_device *dev; |
| char buf[IFNAMSIZ]; |
| #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \ |
| (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)) |
| u32 level_trace; |
| #endif |
| |
| dev = hldev->ndev; |
| vdev = netdev_priv(dev); |
| #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \ |
| (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)) |
| level_trace = vdev->level_trace; |
| #endif |
| vxge_debug_entryexit(level_trace, |
| "%s: %s:%d", vdev->ndev->name, __func__, __LINE__); |
| |
| memcpy(buf, vdev->ndev->name, IFNAMSIZ); |
| |
| /* in 2.6 will call stop() if device is up */ |
| unregister_netdev(dev); |
| |
| flush_scheduled_work(); |
| |
| vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf); |
| vxge_debug_entryexit(level_trace, |
| "%s: %s:%d Exiting...", buf, __func__, __LINE__); |
| } |
| |
| /* |
| * vxge_callback_crit_err |
| * |
| * This function is called by the alarm handler in interrupt context. |
| * Driver must analyze it based on the event type. |
| */ |
| static void |
| vxge_callback_crit_err(struct __vxge_hw_device *hldev, |
| enum vxge_hw_event type, u64 vp_id) |
| { |
| struct net_device *dev = hldev->ndev; |
| struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev); |
| int vpath_idx; |
| |
| vxge_debug_entryexit(vdev->level_trace, |
| "%s: %s:%d", vdev->ndev->name, __func__, __LINE__); |
| |
| /* Note: This event type should be used for device wide |
| * indications only - Serious errors, Slot freeze and critical errors |
| */ |
| vdev->cric_err_event = type; |
| |
| for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) |
| if (vdev->vpaths[vpath_idx].device_id == vp_id) |
| break; |
| |
| if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) { |
| if (type == VXGE_HW_EVENT_SLOT_FREEZE) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Slot is frozen", vdev->ndev->name); |
| } else if (type == VXGE_HW_EVENT_SERR) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Encountered Serious Error", |
| vdev->ndev->name); |
| } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) |
| vxge_debug_init(VXGE_ERR, |
| "%s: Encountered Critical Error", |
| vdev->ndev->name); |
| } |
| |
| if ((type == VXGE_HW_EVENT_SERR) || |
| (type == VXGE_HW_EVENT_SLOT_FREEZE)) { |
| if (unlikely(vdev->exec_mode)) |
| clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| } else if (type == VXGE_HW_EVENT_CRITICAL_ERR) { |
| vxge_hw_device_mask_all(hldev); |
| if (unlikely(vdev->exec_mode)) |
| clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| } else if ((type == VXGE_HW_EVENT_FIFO_ERR) || |
| (type == VXGE_HW_EVENT_VPATH_ERR)) { |
| |
| if (unlikely(vdev->exec_mode)) |
| clear_bit(__VXGE_STATE_CARD_UP, &vdev->state); |
| else { |
| /* check if this vpath is already set for reset */ |
| if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) { |
| |
| /* disable interrupts for this vpath */ |
| vxge_vpath_intr_disable(vdev, vpath_idx); |
| |
| /* stop the queue for this vpath */ |
| vxge_stop_tx_queue(&vdev->vpaths[vpath_idx]. |
| fifo); |
| } |
| } |
| } |
| |
| vxge_debug_entryexit(vdev->level_trace, |
| "%s: %s:%d Exiting...", |
| vdev->ndev->name, __func__, __LINE__); |
| } |
| |
| static void verify_bandwidth(void) |
| { |
| int i, band_width, total = 0, equal_priority = 0; |
| |
| /* 1. If user enters 0 for some fifo, give equal priority to all */ |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| if (bw_percentage[i] == 0) { |
| equal_priority = 1; |
| break; |
| } |
| } |
| |
| if (!equal_priority) { |
| /* 2. If sum exceeds 100, give equal priority to all */ |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| if (bw_percentage[i] == 0xFF) |
| break; |
| |
| total += bw_percentage[i]; |
| if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) { |
| equal_priority = 1; |
| break; |
| } |
| } |
| } |
| |
| if (!equal_priority) { |
| /* Is all the bandwidth consumed? */ |
| if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) { |
| if (i < VXGE_HW_MAX_VIRTUAL_PATHS) { |
| /* Split rest of bw equally among next VPs*/ |
| band_width = |
| (VXGE_HW_VPATH_BANDWIDTH_MAX - total) / |
| (VXGE_HW_MAX_VIRTUAL_PATHS - i); |
| if (band_width < 2) /* min of 2% */ |
| equal_priority = 1; |
| else { |
| for (; i < VXGE_HW_MAX_VIRTUAL_PATHS; |
| i++) |
| bw_percentage[i] = |
| band_width; |
| } |
| } |
| } else if (i < VXGE_HW_MAX_VIRTUAL_PATHS) |
| equal_priority = 1; |
| } |
| |
| if (equal_priority) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Assigning equal bandwidth to all the vpaths", |
| VXGE_DRIVER_NAME); |
| bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX / |
| VXGE_HW_MAX_VIRTUAL_PATHS; |
| for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) |
| bw_percentage[i] = bw_percentage[0]; |
| } |
| |
| return; |
| } |
| |
| /* |
| * Vpath configuration |
| */ |
| static int __devinit vxge_config_vpaths( |
| struct vxge_hw_device_config *device_config, |
| u64 vpath_mask, struct vxge_config *config_param) |
| { |
| int i, no_of_vpaths = 0, default_no_vpath = 0, temp; |
| u32 txdl_size, txdl_per_memblock; |
| |
| temp = driver_config->vpath_per_dev; |
| if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) && |
| (max_config_dev == VXGE_MAX_CONFIG_DEV)) { |
| /* No more CPU. Return vpath number as zero.*/ |
| if (driver_config->g_no_cpus == -1) |
| return 0; |
| |
| if (!driver_config->g_no_cpus) |
| driver_config->g_no_cpus = num_online_cpus(); |
| |
| driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1; |
| if (!driver_config->vpath_per_dev) |
| driver_config->vpath_per_dev = 1; |
| |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) |
| if (!vxge_bVALn(vpath_mask, i, 1)) |
| continue; |
| else |
| default_no_vpath++; |
| if (default_no_vpath < driver_config->vpath_per_dev) |
| driver_config->vpath_per_dev = default_no_vpath; |
| |
| driver_config->g_no_cpus = driver_config->g_no_cpus - |
| (driver_config->vpath_per_dev * 2); |
| if (driver_config->g_no_cpus <= 0) |
| driver_config->g_no_cpus = -1; |
| } |
| |
| if (driver_config->vpath_per_dev == 1) { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: Disable tx and rx steering, " |
| "as single vpath is configured", VXGE_DRIVER_NAME); |
| config_param->rth_steering = NO_STEERING; |
| config_param->tx_steering_type = NO_STEERING; |
| device_config->rth_en = 0; |
| } |
| |
| /* configure bandwidth */ |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) |
| device_config->vp_config[i].min_bandwidth = bw_percentage[i]; |
| |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| device_config->vp_config[i].vp_id = i; |
| device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU; |
| if (no_of_vpaths < driver_config->vpath_per_dev) { |
| if (!vxge_bVALn(vpath_mask, i, 1)) { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: vpath: %d is not available", |
| VXGE_DRIVER_NAME, i); |
| continue; |
| } else { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: vpath: %d available", |
| VXGE_DRIVER_NAME, i); |
| no_of_vpaths++; |
| } |
| } else { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: vpath: %d is not configured, " |
| "max_config_vpath exceeded", |
| VXGE_DRIVER_NAME, i); |
| break; |
| } |
| |
| /* Configure Tx fifo's */ |
| device_config->vp_config[i].fifo.enable = |
| VXGE_HW_FIFO_ENABLE; |
| device_config->vp_config[i].fifo.max_frags = |
| MAX_SKB_FRAGS; |
| device_config->vp_config[i].fifo.memblock_size = |
| VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE; |
| |
| txdl_size = MAX_SKB_FRAGS * sizeof(struct vxge_hw_fifo_txd); |
| txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size; |
| |
| device_config->vp_config[i].fifo.fifo_blocks = |
| ((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1; |
| |
| device_config->vp_config[i].fifo.intr = |
| VXGE_HW_FIFO_QUEUE_INTR_DISABLE; |
| |
| /* Configure tti properties */ |
| device_config->vp_config[i].tti.intr_enable = |
| VXGE_HW_TIM_INTR_ENABLE; |
| |
| device_config->vp_config[i].tti.btimer_val = |
| (VXGE_TTI_BTIMER_VAL * 1000) / 272; |
| |
| device_config->vp_config[i].tti.timer_ac_en = |
| VXGE_HW_TIM_TIMER_AC_ENABLE; |
| |
| /* For msi-x with napi (each vector |
| has a handler of its own) - |
| Set CI to OFF for all vpaths */ |
| device_config->vp_config[i].tti.timer_ci_en = |
| VXGE_HW_TIM_TIMER_CI_DISABLE; |
| |
| device_config->vp_config[i].tti.timer_ri_en = |
| VXGE_HW_TIM_TIMER_RI_DISABLE; |
| |
| device_config->vp_config[i].tti.util_sel = |
| VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL; |
| |
| device_config->vp_config[i].tti.ltimer_val = |
| (VXGE_TTI_LTIMER_VAL * 1000) / 272; |
| |
| device_config->vp_config[i].tti.rtimer_val = |
| (VXGE_TTI_RTIMER_VAL * 1000) / 272; |
| |
| device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A; |
| device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B; |
| device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C; |
| device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A; |
| device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B; |
| device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C; |
| device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D; |
| |
| /* Configure Rx rings */ |
| device_config->vp_config[i].ring.enable = |
| VXGE_HW_RING_ENABLE; |
| |
| device_config->vp_config[i].ring.ring_blocks = |
| VXGE_HW_DEF_RING_BLOCKS; |
| device_config->vp_config[i].ring.buffer_mode = |
| VXGE_HW_RING_RXD_BUFFER_MODE_1; |
| device_config->vp_config[i].ring.rxds_limit = |
| VXGE_HW_DEF_RING_RXDS_LIMIT; |
| device_config->vp_config[i].ring.scatter_mode = |
| VXGE_HW_RING_SCATTER_MODE_A; |
| |
| /* Configure rti properties */ |
| device_config->vp_config[i].rti.intr_enable = |
| VXGE_HW_TIM_INTR_ENABLE; |
| |
| device_config->vp_config[i].rti.btimer_val = |
| (VXGE_RTI_BTIMER_VAL * 1000)/272; |
| |
| device_config->vp_config[i].rti.timer_ac_en = |
| VXGE_HW_TIM_TIMER_AC_ENABLE; |
| |
| device_config->vp_config[i].rti.timer_ci_en = |
| VXGE_HW_TIM_TIMER_CI_DISABLE; |
| |
| device_config->vp_config[i].rti.timer_ri_en = |
| VXGE_HW_TIM_TIMER_RI_DISABLE; |
| |
| device_config->vp_config[i].rti.util_sel = |
| VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL; |
| |
| device_config->vp_config[i].rti.urange_a = |
| RTI_RX_URANGE_A; |
| device_config->vp_config[i].rti.urange_b = |
| RTI_RX_URANGE_B; |
| device_config->vp_config[i].rti.urange_c = |
| RTI_RX_URANGE_C; |
| device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A; |
| device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B; |
| device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C; |
| device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D; |
| |
| device_config->vp_config[i].rti.rtimer_val = |
| (VXGE_RTI_RTIMER_VAL * 1000) / 272; |
| |
| device_config->vp_config[i].rti.ltimer_val = |
| (VXGE_RTI_LTIMER_VAL * 1000) / 272; |
| |
| device_config->vp_config[i].rpa_strip_vlan_tag = |
| vlan_tag_strip; |
| } |
| |
| driver_config->vpath_per_dev = temp; |
| return no_of_vpaths; |
| } |
| |
| /* initialize device configuratrions */ |
| static void __devinit vxge_device_config_init( |
| struct vxge_hw_device_config *device_config, |
| int *intr_type) |
| { |
| /* Used for CQRQ/SRQ. */ |
| device_config->dma_blockpool_initial = |
| VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE; |
| |
| device_config->dma_blockpool_max = |
| VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE; |
| |
| if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT) |
| max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT; |
| |
| #ifndef CONFIG_PCI_MSI |
| vxge_debug_init(VXGE_ERR, |
| "%s: This Kernel does not support " |
| "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME); |
| *intr_type = INTA; |
| #endif |
| |
| /* Configure whether MSI-X or IRQL. */ |
| switch (*intr_type) { |
| case INTA: |
| device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE; |
| break; |
| |
| case MSI_X: |
| device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX; |
| break; |
| } |
| /* Timer period between device poll */ |
| device_config->device_poll_millis = VXGE_TIMER_DELAY; |
| |
| /* Configure mac based steering. */ |
| device_config->rts_mac_en = addr_learn_en; |
| |
| /* Configure Vpaths */ |
| device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT; |
| |
| vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ", |
| __func__); |
| vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d", |
| device_config->dma_blockpool_initial); |
| vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d", |
| device_config->dma_blockpool_max); |
| vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d", |
| device_config->intr_mode); |
| vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d", |
| device_config->device_poll_millis); |
| vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d", |
| device_config->rts_mac_en); |
| vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d", |
| device_config->rth_en); |
| vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d", |
| device_config->rth_it_type); |
| } |
| |
| static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask) |
| { |
| int i; |
| |
| vxge_debug_init(VXGE_TRACE, |
| "%s: %d Vpath(s) opened", |
| vdev->ndev->name, vdev->no_of_vpath); |
| |
| switch (vdev->config.intr_type) { |
| case INTA: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Interrupt type INTA", vdev->ndev->name); |
| break; |
| |
| case MSI_X: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Interrupt type MSI-X", vdev->ndev->name); |
| break; |
| } |
| |
| if (vdev->config.rth_steering) { |
| vxge_debug_init(VXGE_TRACE, |
| "%s: RTH steering enabled for TCP_IPV4", |
| vdev->ndev->name); |
| } else { |
| vxge_debug_init(VXGE_TRACE, |
| "%s: RTH steering disabled", vdev->ndev->name); |
| } |
| |
| switch (vdev->config.tx_steering_type) { |
| case NO_STEERING: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx steering disabled", vdev->ndev->name); |
| break; |
| case TX_PRIORITY_STEERING: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Unsupported tx steering option", |
| vdev->ndev->name); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx steering disabled", vdev->ndev->name); |
| vdev->config.tx_steering_type = 0; |
| break; |
| case TX_VLAN_STEERING: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Unsupported tx steering option", |
| vdev->ndev->name); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx steering disabled", vdev->ndev->name); |
| vdev->config.tx_steering_type = 0; |
| break; |
| case TX_MULTIQ_STEERING: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx multiqueue steering enabled", |
| vdev->ndev->name); |
| break; |
| case TX_PORT_STEERING: |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx port steering enabled", |
| vdev->ndev->name); |
| break; |
| default: |
| vxge_debug_init(VXGE_ERR, |
| "%s: Unsupported tx steering type", |
| vdev->ndev->name); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Tx steering disabled", vdev->ndev->name); |
| vdev->config.tx_steering_type = 0; |
| } |
| |
| if (vdev->config.gro_enable) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Generic receive offload enabled", |
| vdev->ndev->name); |
| } else |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Generic receive offload disabled", |
| vdev->ndev->name); |
| |
| if (vdev->config.addr_learn_en) |
| vxge_debug_init(VXGE_TRACE, |
| "%s: MAC Address learning enabled", vdev->ndev->name); |
| |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Rx doorbell mode enabled", vdev->ndev->name); |
| |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| if (!vxge_bVALn(vpath_mask, i, 1)) |
| continue; |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: MTU size - %d", vdev->ndev->name, |
| ((struct __vxge_hw_device *)(vdev->devh))-> |
| config.vp_config[i].mtu); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: VLAN tag stripping %s", vdev->ndev->name, |
| ((struct __vxge_hw_device *)(vdev->devh))-> |
| config.vp_config[i].rpa_strip_vlan_tag |
| ? "Enabled" : "Disabled"); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Ring blocks : %d", vdev->ndev->name, |
| ((struct __vxge_hw_device *)(vdev->devh))-> |
| config.vp_config[i].ring.ring_blocks); |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Fifo blocks : %d", vdev->ndev->name, |
| ((struct __vxge_hw_device *)(vdev->devh))-> |
| config.vp_config[i].fifo.fifo_blocks); |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: Max frags : %d", vdev->ndev->name, |
| ((struct __vxge_hw_device *)(vdev->devh))-> |
| config.vp_config[i].fifo.max_frags); |
| break; |
| } |
| } |
| |
| #ifdef CONFIG_PM |
| /** |
| * vxge_pm_suspend - vxge power management suspend entry point |
| * |
| */ |
| static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| return -ENOSYS; |
| } |
| /** |
| * vxge_pm_resume - vxge power management resume entry point |
| * |
| */ |
| static int vxge_pm_resume(struct pci_dev *pdev) |
| { |
| return -ENOSYS; |
| } |
| |
| #endif |
| |
| /** |
| * vxge_io_error_detected - called when PCI error is detected |
| * @pdev: Pointer to PCI device |
| * @state: The current pci connection state |
| * |
| * This function is called after a PCI bus error affecting |
| * this device has been detected. |
| */ |
| static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev, |
| pci_channel_state_t state) |
| { |
| struct __vxge_hw_device *hldev = |
| (struct __vxge_hw_device *) pci_get_drvdata(pdev); |
| struct net_device *netdev = hldev->ndev; |
| |
| netif_device_detach(netdev); |
| |
| if (netif_running(netdev)) { |
| /* Bring down the card, while avoiding PCI I/O */ |
| do_vxge_close(netdev, 0); |
| } |
| |
| pci_disable_device(pdev); |
| |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| /** |
| * vxge_io_slot_reset - called after the pci bus has been reset. |
| * @pdev: Pointer to PCI device |
| * |
| * Restart the card from scratch, as if from a cold-boot. |
| * At this point, the card has exprienced a hard reset, |
| * followed by fixups by BIOS, and has its config space |
| * set up identically to what it was at cold boot. |
| */ |
| static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev) |
| { |
| struct __vxge_hw_device *hldev = |
| (struct __vxge_hw_device *) pci_get_drvdata(pdev); |
| struct net_device *netdev = hldev->ndev; |
| |
| struct vxgedev *vdev = netdev_priv(netdev); |
| |
| if (pci_enable_device(pdev)) { |
| printk(KERN_ERR "%s: " |
| "Cannot re-enable device after reset\n", |
| VXGE_DRIVER_NAME); |
| return PCI_ERS_RESULT_DISCONNECT; |
| } |
| |
| pci_set_master(pdev); |
| vxge_reset(vdev); |
| |
| return PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| /** |
| * vxge_io_resume - called when traffic can start flowing again. |
| * @pdev: Pointer to PCI device |
| * |
| * This callback is called when the error recovery driver tells |
| * us that its OK to resume normal operation. |
| */ |
| static void vxge_io_resume(struct pci_dev *pdev) |
| { |
| struct __vxge_hw_device *hldev = |
| (struct __vxge_hw_device *) pci_get_drvdata(pdev); |
| struct net_device *netdev = hldev->ndev; |
| |
| if (netif_running(netdev)) { |
| if (vxge_open(netdev)) { |
| printk(KERN_ERR "%s: " |
| "Can't bring device back up after reset\n", |
| VXGE_DRIVER_NAME); |
| return; |
| } |
| } |
| |
| netif_device_attach(netdev); |
| } |
| |
| /** |
| * vxge_probe |
| * @pdev : structure containing the PCI related information of the device. |
| * @pre: List of PCI devices supported by the driver listed in vxge_id_table. |
| * Description: |
| * This function is called when a new PCI device gets detected and initializes |
| * it. |
| * Return value: |
| * returns 0 on success and negative on failure. |
| * |
| */ |
| static int __devinit |
| vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre) |
| { |
| struct __vxge_hw_device *hldev; |
| enum vxge_hw_status status; |
| int ret; |
| int high_dma = 0; |
| u64 vpath_mask = 0; |
| struct vxgedev *vdev; |
| struct vxge_config ll_config; |
| struct vxge_hw_device_config *device_config = NULL; |
| struct vxge_hw_device_attr attr; |
| int i, j, no_of_vpath = 0, max_vpath_supported = 0; |
| u8 *macaddr; |
| struct vxge_mac_addrs *entry; |
| static int bus = -1, device = -1; |
| u8 new_device = 0; |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__); |
| attr.pdev = pdev; |
| |
| if (bus != pdev->bus->number) |
| new_device = 1; |
| if (device != PCI_SLOT(pdev->devfn)) |
| new_device = 1; |
| |
| bus = pdev->bus->number; |
| device = PCI_SLOT(pdev->devfn); |
| |
| if (new_device) { |
| if (driver_config->config_dev_cnt && |
| (driver_config->config_dev_cnt != |
| driver_config->total_dev_cnt)) |
| vxge_debug_init(VXGE_ERR, |
| "%s: Configured %d of %d devices", |
| VXGE_DRIVER_NAME, |
| driver_config->config_dev_cnt, |
| driver_config->total_dev_cnt); |
| driver_config->config_dev_cnt = 0; |
| driver_config->total_dev_cnt = 0; |
| driver_config->g_no_cpus = 0; |
| driver_config->vpath_per_dev = max_config_vpath; |
| } |
| |
| driver_config->total_dev_cnt++; |
| if (++driver_config->config_dev_cnt > max_config_dev) { |
| ret = 0; |
| goto _exit0; |
| } |
| |
| device_config = kzalloc(sizeof(struct vxge_hw_device_config), |
| GFP_KERNEL); |
| if (!device_config) { |
| ret = -ENOMEM; |
| vxge_debug_init(VXGE_ERR, |
| "device_config : malloc failed %s %d", |
| __FILE__, __LINE__); |
| goto _exit0; |
| } |
| |
| memset(&ll_config, 0, sizeof(struct vxge_config)); |
| ll_config.tx_steering_type = TX_MULTIQ_STEERING; |
| ll_config.intr_type = MSI_X; |
| ll_config.napi_weight = NEW_NAPI_WEIGHT; |
| ll_config.rth_steering = RTH_STEERING; |
| |
| /* get the default configuration parameters */ |
| vxge_hw_device_config_default_get(device_config); |
| |
| /* initialize configuration parameters */ |
| vxge_device_config_init(device_config, &ll_config.intr_type); |
| |
| ret = pci_enable_device(pdev); |
| if (ret) { |
| vxge_debug_init(VXGE_ERR, |
| "%s : can not enable PCI device", __func__); |
| goto _exit0; |
| } |
| |
| if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL)) { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s : using 64bit DMA", __func__); |
| |
| high_dma = 1; |
| |
| if (pci_set_consistent_dma_mask(pdev, |
| 0xffffffffffffffffULL)) { |
| vxge_debug_init(VXGE_ERR, |
| "%s : unable to obtain 64bit DMA for " |
| "consistent allocations", __func__); |
| ret = -ENOMEM; |
| goto _exit1; |
| } |
| } else if (!pci_set_dma_mask(pdev, 0xffffffffUL)) { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s : using 32bit DMA", __func__); |
| } else { |
| ret = -ENOMEM; |
| goto _exit1; |
| } |
| |
| if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) { |
| vxge_debug_init(VXGE_ERR, |
| "%s : request regions failed", __func__); |
| ret = -ENODEV; |
| goto _exit1; |
| } |
| |
| pci_set_master(pdev); |
| |
| attr.bar0 = pci_ioremap_bar(pdev, 0); |
| if (!attr.bar0) { |
| vxge_debug_init(VXGE_ERR, |
| "%s : cannot remap io memory bar0", __func__); |
| ret = -ENODEV; |
| goto _exit2; |
| } |
| vxge_debug_ll_config(VXGE_TRACE, |
| "pci ioremap bar0: %p:0x%llx", |
| attr.bar0, |
| (unsigned long long)pci_resource_start(pdev, 0)); |
| |
| attr.bar1 = pci_ioremap_bar(pdev, 2); |
| if (!attr.bar1) { |
| vxge_debug_init(VXGE_ERR, |
| "%s : cannot remap io memory bar2", __func__); |
| ret = -ENODEV; |
| goto _exit3; |
| } |
| vxge_debug_ll_config(VXGE_TRACE, |
| "pci ioremap bar1: %p:0x%llx", |
| attr.bar1, |
| (unsigned long long)pci_resource_start(pdev, 2)); |
| |
| status = vxge_hw_device_hw_info_get(attr.bar0, |
| &ll_config.device_hw_info); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: Reading of hardware info failed." |
| "Please try upgrading the firmware.", VXGE_DRIVER_NAME); |
| ret = -EINVAL; |
| goto _exit4; |
| } |
| |
| if (ll_config.device_hw_info.fw_version.major != |
| VXGE_DRIVER_VERSION_MAJOR) { |
| vxge_debug_init(VXGE_ERR, |
| "FW Ver.(maj): %d not driver's expected version: %d", |
| ll_config.device_hw_info.fw_version.major, |
| VXGE_DRIVER_VERSION_MAJOR); |
| ret = -EINVAL; |
| goto _exit4; |
| } |
| |
| vpath_mask = ll_config.device_hw_info.vpath_mask; |
| if (vpath_mask == 0) { |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s: No vpaths available in device", VXGE_DRIVER_NAME); |
| ret = -EINVAL; |
| goto _exit4; |
| } |
| |
| vxge_debug_ll_config(VXGE_TRACE, |
| "%s:%d Vpath mask = %llx", __func__, __LINE__, |
| (unsigned long long)vpath_mask); |
| |
| /* Check how many vpaths are available */ |
| for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| if (!((vpath_mask) & vxge_mBIT(i))) |
| continue; |
| max_vpath_supported++; |
| } |
| |
| /* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */ |
| if ((VXGE_HW_FUNCTION_MODE_SRIOV == |
| ll_config.device_hw_info.function_mode) && |
| (max_config_dev > 1) && (pdev->is_physfn)) { |
| ret = pci_enable_sriov(pdev, max_config_dev - 1); |
| if (ret) |
| vxge_debug_ll_config(VXGE_ERR, |
| "Failed to enable SRIOV: %d \n", ret); |
| } |
| |
| /* |
| * Configure vpaths and get driver configured number of vpaths |
| * which is less than or equal to the maximum vpaths per function. |
| */ |
| no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, &ll_config); |
| if (!no_of_vpath) { |
| vxge_debug_ll_config(VXGE_ERR, |
| "%s: No more vpaths to configure", VXGE_DRIVER_NAME); |
| ret = 0; |
| goto _exit4; |
| } |
| |
| /* Setting driver callbacks */ |
| attr.uld_callbacks.link_up = vxge_callback_link_up; |
| attr.uld_callbacks.link_down = vxge_callback_link_down; |
| attr.uld_callbacks.crit_err = vxge_callback_crit_err; |
| |
| status = vxge_hw_device_initialize(&hldev, &attr, device_config); |
| if (status != VXGE_HW_OK) { |
| vxge_debug_init(VXGE_ERR, |
| "Failed to initialize device (%d)", status); |
| ret = -EINVAL; |
| goto _exit4; |
| } |
| |
| vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL); |
| |
| /* set private device info */ |
| pci_set_drvdata(pdev, hldev); |
| |
| ll_config.gro_enable = VXGE_GRO_ALWAYS_AGGREGATE; |
| ll_config.fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS; |
| ll_config.addr_learn_en = addr_learn_en; |
| ll_config.rth_algorithm = RTH_ALG_JENKINS; |
| ll_config.rth_hash_type_tcpipv4 = VXGE_HW_RING_HASH_TYPE_TCP_IPV4; |
| ll_config.rth_hash_type_ipv4 = VXGE_HW_RING_HASH_TYPE_NONE; |
| ll_config.rth_hash_type_tcpipv6 = VXGE_HW_RING_HASH_TYPE_NONE; |
| ll_config.rth_hash_type_ipv6 = VXGE_HW_RING_HASH_TYPE_NONE; |
| ll_config.rth_hash_type_tcpipv6ex = VXGE_HW_RING_HASH_TYPE_NONE; |
| ll_config.rth_hash_type_ipv6ex = VXGE_HW_RING_HASH_TYPE_NONE; |
| ll_config.rth_bkt_sz = RTH_BUCKET_SIZE; |
| ll_config.tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE; |
| ll_config.rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE; |
| |
| if (vxge_device_register(hldev, &ll_config, high_dma, no_of_vpath, |
| &vdev)) { |
| ret = -EINVAL; |
| goto _exit5; |
| } |
| |
| vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL); |
| VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev), |
| vxge_hw_device_trace_level_get(hldev)); |
| |
| /* set private HW device info */ |
| hldev->ndev = vdev->ndev; |
| vdev->mtu = VXGE_HW_DEFAULT_MTU; |
| vdev->bar0 = attr.bar0; |
| vdev->bar1 = attr.bar1; |
| vdev->max_vpath_supported = max_vpath_supported; |
| vdev->no_of_vpath = no_of_vpath; |
| |
| /* Virtual Path count */ |
| for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| if (!vxge_bVALn(vpath_mask, i, 1)) |
| continue; |
| if (j >= vdev->no_of_vpath) |
| break; |
| |
| vdev->vpaths[j].is_configured = 1; |
| vdev->vpaths[j].device_id = i; |
| vdev->vpaths[j].fifo.driver_id = j; |
| vdev->vpaths[j].ring.driver_id = j; |
| vdev->vpaths[j].vdev = vdev; |
| vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath; |
| memcpy((u8 *)vdev->vpaths[j].macaddr, |
| (u8 *)ll_config.device_hw_info.mac_addrs[i], |
| ETH_ALEN); |
| |
| /* Initialize the mac address list header */ |
| INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list); |
| |
| vdev->vpaths[j].mac_addr_cnt = 0; |
| vdev->vpaths[j].mcast_addr_cnt = 0; |
| j++; |
| } |
| vdev->exec_mode = VXGE_EXEC_MODE_DISABLE; |
| vdev->max_config_port = max_config_port; |
| |
| vdev->vlan_tag_strip = vlan_tag_strip; |
| |
| /* map the hashing selector table to the configured vpaths */ |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vdev->vpath_selector[i] = vpath_selector[i]; |
| |
| macaddr = (u8 *)vdev->vpaths[0].macaddr; |
| |
| ll_config.device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0'; |
| ll_config.device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0'; |
| ll_config.device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0'; |
| |
| vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s", |
| vdev->ndev->name, ll_config.device_hw_info.serial_number); |
| |
| vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s", |
| vdev->ndev->name, ll_config.device_hw_info.part_number); |
| |
| vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter", |
| vdev->ndev->name, ll_config.device_hw_info.product_desc); |
| |
| vxge_debug_init(VXGE_TRACE, |
| "%s: MAC ADDR: %02X:%02X:%02X:%02X:%02X:%02X", |
| vdev->ndev->name, macaddr[0], macaddr[1], macaddr[2], |
| macaddr[3], macaddr[4], macaddr[5]); |
| |
| vxge_debug_init(VXGE_TRACE, "%s: Link Width x%d", |
| vdev->ndev->name, vxge_hw_device_link_width_get(hldev)); |
| |
| vxge_debug_init(VXGE_TRACE, |
| "%s: Firmware version : %s Date : %s", vdev->ndev->name, |
| ll_config.device_hw_info.fw_version.version, |
| ll_config.device_hw_info.fw_date.date); |
| |
| vxge_print_parm(vdev, vpath_mask); |
| |
| /* Store the fw version for ethttool option */ |
| strcpy(vdev->fw_version, ll_config.device_hw_info.fw_version.version); |
| memcpy(vdev->ndev->dev_addr, (u8 *)vdev->vpaths[0].macaddr, ETH_ALEN); |
| memcpy(vdev->ndev->perm_addr, vdev->ndev->dev_addr, ETH_ALEN); |
| |
| /* Copy the station mac address to the list */ |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| entry = (struct vxge_mac_addrs *) |
| kzalloc(sizeof(struct vxge_mac_addrs), |
| GFP_KERNEL); |
| if (NULL == entry) { |
| vxge_debug_init(VXGE_ERR, |
| "%s: mac_addr_list : memory allocation failed", |
| vdev->ndev->name); |
| ret = -EPERM; |
| goto _exit6; |
| } |
| macaddr = (u8 *)&entry->macaddr; |
| memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN); |
| list_add(&entry->item, &vdev->vpaths[i].mac_addr_list); |
| vdev->vpaths[i].mac_addr_cnt = 1; |
| } |
| |
| vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...", |
| vdev->ndev->name, __func__, __LINE__); |
| |
| vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL); |
| VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev), |
| vxge_hw_device_trace_level_get(hldev)); |
| |
| return 0; |
| |
| _exit6: |
| for (i = 0; i < vdev->no_of_vpath; i++) |
| vxge_free_mac_add_list(&vdev->vpaths[i]); |
| |
| vxge_device_unregister(hldev); |
| _exit5: |
| pci_disable_sriov(pdev); |
| vxge_hw_device_terminate(hldev); |
| _exit4: |
| iounmap(attr.bar1); |
| _exit3: |
| iounmap(attr.bar0); |
| _exit2: |
| pci_release_regions(pdev); |
| _exit1: |
| pci_disable_device(pdev); |
| _exit0: |
| kfree(device_config); |
| driver_config->config_dev_cnt--; |
| pci_set_drvdata(pdev, NULL); |
| return ret; |
| } |
| |
| /** |
| * vxge_rem_nic - Free the PCI device |
| * @pdev: structure containing the PCI related information of the device. |
| * Description: This function is called by the Pci subsystem to release a |
| * PCI device and free up all resource held up by the device. |
| */ |
| static void __devexit |
| vxge_remove(struct pci_dev *pdev) |
| { |
| struct __vxge_hw_device *hldev; |
| struct vxgedev *vdev = NULL; |
| struct net_device *dev; |
| int i = 0; |
| #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \ |
| (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)) |
| u32 level_trace; |
| #endif |
| |
| hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev); |
| |
| if (hldev == NULL) |
| return; |
| dev = hldev->ndev; |
| vdev = netdev_priv(dev); |
| |
| #if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \ |
| (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)) |
| level_trace = vdev->level_trace; |
| #endif |
| vxge_debug_entryexit(level_trace, |
| "%s:%d", __func__, __LINE__); |
| |
| vxge_debug_init(level_trace, |
| "%s : removing PCI device...", __func__); |
| vxge_device_unregister(hldev); |
| |
| for (i = 0; i < vdev->no_of_vpath; i++) { |
| vxge_free_mac_add_list(&vdev->vpaths[i]); |
| vdev->vpaths[i].mcast_addr_cnt = 0; |
| vdev->vpaths[i].mac_addr_cnt = 0; |
| } |
| |
| kfree(vdev->vpaths); |
| |
| iounmap(vdev->bar0); |
| iounmap(vdev->bar1); |
| |
| pci_disable_sriov(pdev); |
| |
| /* we are safe to free it now */ |
| free_netdev(dev); |
| |
| vxge_debug_init(level_trace, |
| "%s:%d Device unregistered", __func__, __LINE__); |
| |
| vxge_hw_device_terminate(hldev); |
| |
| pci_disable_device(pdev); |
| pci_release_regions(pdev); |
| pci_set_drvdata(pdev, NULL); |
| vxge_debug_entryexit(level_trace, |
| "%s:%d Exiting...", __func__, __LINE__); |
| } |
| |
| static struct pci_error_handlers vxge_err_handler = { |
| .error_detected = vxge_io_error_detected, |
| .slot_reset = vxge_io_slot_reset, |
| .resume = vxge_io_resume, |
| }; |
| |
| static struct pci_driver vxge_driver = { |
| .name = VXGE_DRIVER_NAME, |
| .id_table = vxge_id_table, |
| .probe = vxge_probe, |
| .remove = __devexit_p(vxge_remove), |
| #ifdef CONFIG_PM |
| .suspend = vxge_pm_suspend, |
| .resume = vxge_pm_resume, |
| #endif |
| .err_handler = &vxge_err_handler, |
| }; |
| |
| static int __init |
| vxge_starter(void) |
| { |
| int ret = 0; |
| char version[32]; |
| snprintf(version, 32, "%s", DRV_VERSION); |
| |
| printk(KERN_CRIT "%s: Copyright(c) 2002-2009 Neterion Inc\n", |
| VXGE_DRIVER_NAME); |
| printk(KERN_CRIT "%s: Driver version: %s\n", |
| VXGE_DRIVER_NAME, version); |
| |
| verify_bandwidth(); |
| |
| driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL); |
| if (!driver_config) |
| return -ENOMEM; |
| |
| ret = pci_register_driver(&vxge_driver); |
| |
| if (driver_config->config_dev_cnt && |
| (driver_config->config_dev_cnt != driver_config->total_dev_cnt)) |
| vxge_debug_init(VXGE_ERR, |
| "%s: Configured %d of %d devices", |
| VXGE_DRIVER_NAME, driver_config->config_dev_cnt, |
| driver_config->total_dev_cnt); |
| |
| if (ret) |
| kfree(driver_config); |
| |
| return ret; |
| } |
| |
| static void __exit |
| vxge_closer(void) |
| { |
| pci_unregister_driver(&vxge_driver); |
| kfree(driver_config); |
| } |
| module_init(vxge_starter); |
| module_exit(vxge_closer); |