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Date: 25 Mar 2009 00:13:33 -0800
From: Ramkrishna Vepa <ram.vepa@...erion.com>
To: David Miller <davem@...emloft.net>
Cc: Netdev <netdev@...r.kernel.org>,
Ramkrishna Vepa <ram.vepa@...erion.com>
Subject: [net-2.6 PATCH 7/10] Neterion: New driver: Main entry points
This patch implements all the driver entry point functions.
- Definition of all module loadable paramters.
- Implementation of all driver entry point functions.
- Changes from previous submission -
- Incorporated following review comments from Ben Hutchings
- NAPI is always enabled (no option to turn it OFF).
- Loadable parameters
rx_steering_type: This loadable option is removed.
ring_blocks: This loadable option is removed.
The driver default settings work well in most if not all cases.
Another patch to configure these parameters with ethtool will be
released in the future.
- LRO has been deprecated in favour of GRO - Bill Fink & Dave Miller's comment
- Fixed sparse warnings - Reported by Andi Kleen
- Removed unused variables
Signed-off-by: Sivakumar Subramani <sivakumar.subramani@...erion.com>
Signed-off-by: Rastapur Santosh <santosh.rastapur@...erion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@...erion.com>
---
diff -Nurp patch_6/drivers/net/vxge/vxge-main.c patch_7/drivers/net/vxge/vxge-main.c
--- patch_6/drivers/net/vxge/vxge-main.c 1969-12-31 16:00:00.000000000 -0800
+++ patch_7/drivers/net/vxge/vxge-main.c 2009-03-24 13:34:33.000000000 -0700
@@ -0,0 +1,4844 @@
+/******************************************************************************
+* 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 Receive Traffic Steering using MAC destination address.
+* 0 - DISABLE
+* 1 - ENABLE
+*
+* gro:
+* Enable Generic Receive Offload (GRO)
+* 0 - DISABLE
+* 1 - ENABLE
+*
+* max_config_port:
+* Maximum number of port to be supported.
+* MIN -1 and MAX - 2
+*
+* fifo_indicate_max_pkts:
+* Sets the maximum number of transmit frames to be processed within
+* single interrupt.
+* MIN - 1 and MAX - 65536
+*
+* ring_indicate_max_pkts:
+* Sets the maximum number of received frames to be processed within
+* single interrupt.
+* MIN - 1 and MAX - 65536
+*
+* 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
+*
+* intr_type:
+* This configures the type of interrupt.
+* 0 - INTA
+* 1 - Reserved
+* 2 - MSIX
+* 3 - EMULATED_INTA
+*
+* exec_mode:
+* This is set make enable the debug mode by default.
+* 0 - DISABLE
+* 1 - ENABLE
+*
+* tx_steering_type:
+* This parameter is for configuring the transmit steering.
+* 0 - No steering
+* 1 - Priority steering
+* 2 - Vlan steering
+* 3 - Multiqueue steering
+* 4 - Port steering (default)
+*
+* tx_pause_enable:
+* This parameter enables pause frame generation.
+* 0 - Disable
+* 1 - Enable
+*
+* rx_pause_enable:
+* This parameter enables response to received pause frames
+* 0 - Disable
+* 1 - Enable.
+*
+******************************************************************************/
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/if_vlan.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+
+#include <net/sock.h>
+#include <net/ip.h>
+
+#include <linux/ip.h>
+#include <linux/tcp.h>
+
+#include "vxge-main.h"
+#include "vxge-reg.h"
+
+#define VXGE_DRIVER_VERSION_MAJOR 0
+
+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 int vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre);
+static void vxge_remove(struct pci_dev *pdev);
+
+static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state);
+static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev);
+static void vxge_io_resume(struct pci_dev *pdev);
+
+#ifdef CONFIG_PM
+static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state);
+static int vxge_pm_resume(struct pci_dev *pdev);
+#endif
+
+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_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"\
+ "Virtualized Server Adapter");
+
+MODULE_DEVICE_TABLE(pci, vxge_id_table);
+
+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,
+};
+
+VXGE_MODULE_PARAM_INT(vlan_tag_strip,
+ VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
+
+#if defined(CONFIG_XEN)
+VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_RTS_MAC_ENABLE);
+#else
+VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_RTS_MAC_DISABLE);
+#endif
+
+VXGE_MODULE_PARAM_INT(rxds_limit, VXGE_HW_DEF_RING_RXDS_LIMIT);
+VXGE_MODULE_PARAM_INT(ring_indicate_max_pkts,
+ VXGE_HW_DEF_RING_INDICATE_MAX_PKTS);
+VXGE_MODULE_PARAM_INT(fifo_indicate_max_pkts, VXGE_FIFO_INDICATE_MAX_PKTS);
+VXGE_MODULE_PARAM_INT(fifo_length, VXGE_DEF_FIFO_LENGTH);
+VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
+VXGE_MODULE_PARAM_INT(gro, VXGE_GRO_ALWAYS_AGGREGATE);
+VXGE_MODULE_PARAM_INT(tx_steering_type, TX_MULTIQ_STEERING);
+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);
+VXGE_MODULE_PARAM_INT(intr_type, MSI_X);
+VXGE_MODULE_PARAM_INT(exec_mode, VXGE_EXEC_MODE_DISABLE);
+VXGE_MODULE_PARAM_INT(tx_pause_enable, VXGE_PAUSE_FRM_ENABLE);
+VXGE_MODULE_PARAM_INT(rx_pause_enable, VXGE_PAUSE_FRM_ENABLE);
+
+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 int config_dev_cnt, total_dev_cnt;
+static int g_no_cpus;
+static unsigned int vpath_per_dev;
+
+static inline int is_vxge_card_up(struct vxgedev *vdev)
+{
+ return test_bit(__VXGE_STATE_CARD_UP, (unsigned long *) &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 = (struct net_device *) 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 = (struct net_device *) 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 = (struct net_device *) 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 called during interrupt context to notify link up state
+ * change.
+ */
+void
+vxge_callback_link_up(struct __vxge_hw_device *hldev)
+{
+ struct net_device *dev = (struct net_device *)hldev->ndev;
+ struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
+
+ vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d\n",
+ 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...\n", vdev->ndev->name,
+ __func__, __LINE__);
+}
+
+/*
+ * vxge_callback_link_down
+ *
+ * This function 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\n", 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...\n", 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\n",
+ 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%llx\n", ring->ndev->name,
+ __func__, __LINE__, (u64)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...\n", 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\n",
+ 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\n",
+ ring->ndev->name, __func__, __LINE__, (u64)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...\n",
+ 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\n",
+ 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...\n",
+ 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\n",
+ ring->ndev->name, __func__, __LINE__);
+
+ 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\n",
+ 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...\n",
+ 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 % XGE_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\n",
+ 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%llx\n",
+ ring->ndev->name, __func__,
+ __LINE__, (u64)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\n",
+ 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 \n",
+ 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 = 0x%llx\n",
+ ring->ndev->name, __func__,
+ __LINE__, (u64)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...\n",
+ __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....\n", __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 = 0x%llx dtr = 0x%llx \
+ tcode = 0x%x\n",
+ fifo->ndev->name, __func__, __LINE__,
+ (u64)fifo_hw, (u64)dtr, t_code);
+ /* check skb validity */
+ vxge_assert(skb);
+ vxge_debug_tx(VXGE_TRACE,
+ "%s: %s:%d skb = 0x%llx itxd_priv = 0x%llx \
+ frg_cnt = %d\n",
+ fifo->ndev->name, __func__, __LINE__,
+ (u64)skb, (u64)txd_priv, frg_cnt);
+ if (unlikely(t_code)) {
+ fifo->stats.tx_errors++;
+ vxge_debug_tx(VXGE_ERR,
+ "%s: tx: dtr 0x%llx completed due to "
+ "error t_code %01x",
+ fifo->ndev->name, (unsigned long long)
+ (ulong_t)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...\n",
+ fifo->ndev->name, __func__, __LINE__);
+ return VXGE_HW_OK;
+}
+
+/* select a vpath to trasmit 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;
+}
+
+#if defined(CONFIG_XEN)
+
+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;
+}
+
+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_t)vxge_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;
+}
+#endif
+
+/**
+ * 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\n",
+ 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..\n", 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\n", dev->name);
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+
+#if defined(CONFIG_XEN)
+ 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..\n",
+ dev->name);
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+ }
+ }
+#endif
+
+ 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\n", 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\n", 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 = 0x%llx dtr = 0x%llx dtr_priv = 0x%llx\n",
+ dev->name, __func__, __LINE__,
+ (u64)fifo_hw, (u64)dtr, (u64)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 = 0x%llx txdl_priv = 0x%llx \
+ frag_cnt = %d dma_pointer = 0x%llx\n", dev->name,
+ __func__, __LINE__, (u64)skb, (u64)txdl_priv,
+ frg_cnt, 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\n",
+ dev->name, __func__, __LINE__, i,
+ 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\n",
+ 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);
+ dev->trans_start = jiffies;
+ spin_unlock_irqrestore(&fifo->tx_lock, flags);
+
+ VXGE_COMPLETE_VPATH_TX(fifo);
+ vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...\n",
+ 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\n",
+ 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...\n",
+ 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\n", __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...\n", __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\n", __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...\n", __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\n", __func__, __LINE__);
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __vxge_hw_device *)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...\n",
+ __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\n", vp_id);
+ return status;
+ }
+ } else {
+ vxge_debug_init(VXGE_ERR,
+ "vxge_hw_vpath_reset failed for \
+ vpath:%d\n", 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\n", __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;
+ }
+ }
+
+ printk(KERN_NOTICE "%s: reseting the chip\n", vdev->ndev->name);
+
+ if (event == VXGE_LL_FULL_RESET) {
+ vxge_hw_device_intr_disable(vdev->devh);
+
+ switch (vdev->cric_err_event.type) {
+ 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\n", i);
+ ret = -EPERM;
+ goto out;
+ }
+ } else {
+ vxge_debug_init(VXGE_ERR,
+ "vxge_hw_vpath_reset failed for \
+ vpath:%d\n", 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...\n", __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'.
+ */
+#if defined(HAVE_NETDEV_POLL)
+
+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;
+}
+
+#endif
+#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\n", __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...\n", __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:\n",
+ 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];
+
+ /* get first entry */
+ 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;
+ }
+
+ if (!compare_ether_addr(mac->macaddr, macaddr))
+ return status;
+
+ while (status == VXGE_HW_OK) {
+ /* Get next entries */
+ status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
+ macaddr, macmask);
+
+ if (status != VXGE_HW_OK)
+ return status;
+
+ /* Is it already present? */
+ if (!compare_ether_addr(mac->macaddr, macaddr))
+ return status;
+ }
+
+ 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\n", i);
+ return status;
+ }
+ } else {
+ vxge_debug_init(VXGE_ERR,
+ "vxge_hw_vpath_reset failed for \
+ vpath:%d\n", 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->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\n", __func__, __LINE__);
+
+ dev = hldev->ndev;
+ vdev = netdev_priv(dev);
+
+ VXGE_CHECK_PCI_CHANNEL_OFFLINE(vdev->pdev);
+
+ 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...\n", __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...\n", __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 \n", 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;
+#ifdef CONFIG_PCI_MSI
+ int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
+#endif
+ u64 function_mode = vdev->config.device_hw_info.function_mode;
+ int pci_fun = PCI_FUNC(vdev->pdev->devfn);
+ hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
+
+#ifdef CONFIG_PCI_MSI
+ 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)
+ return VXGE_HW_FAIL;
+ else {
+ vxge_debug_init(VXGE_ERR,
+ "%s: Defaulting to INTA \n", 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:
+ sprintf(vdev->desc[intr_cnt],
+ "%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:
+ sprintf(vdev->desc[intr_cnt],
+ "%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)
+ 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;
+ sprintf(vdev->desc[intr_cnt],
+ "%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)
+ 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
+ sprintf(vdev->desc[0], "%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;
+
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s: %s:%d\n", dev->name,
+ __func__, __LINE__);
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
+
+ /* make sure you have link off by default every time Nic is
+ * initialized */
+ netif_carrier_off(dev);
+
+ /* 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_t)vxge_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_t)vxge_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 \n", dev->name, i);
+#if defined(CONFIG_XEN)
+ 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 \n", dev->name, i);
+#endif
+ }
+
+ 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...\n",
+ 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\n",
+ 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_t)vxge_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_t)vxge_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_t)vxge_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_t)vxge_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...\n",
+ dev->name, __func__, __LINE__);
+
+ 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\n", __func__, __LINE__);
+ if ((new_mtu < MIN_MTU) || (new_mtu > MAX_PYLD_JUMBO)) {
+ 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\n", 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\n", vdev->ndev->name, new_mtu);
+
+ vxge_debug_entryexit(vdev->level_trace,
+ "%s:%d Exiting...\n", __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\n", __func__, __LINE__);
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+
+ vdev->cric_err_event.type = VXGE_HW_EVENT_RESET_START;
+ vdev->cric_err_event.vp_id = 0;
+
+ vxge_reset(vdev);
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s:%d Exiting...\n", __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\n", __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...\n", __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\n", __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...\n", __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 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;
+ u64 stat;
+ *vdev_out = NULL;
+
+ ndev = vxge_alloc_etherdev(sizeof(struct vxgedev),
+ no_of_vpath, config->tx_steering_type);
+ 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 *devh)
+{
+ struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)devh;
+ 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\n", 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...\n",
+ 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\n",
+ 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 = type;
+
+ /* FIX ME !!! Remove this variable */
+ vdev->cric_err_event.vp_id = vp_id;
+
+ 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\n", vdev->ndev->name);
+ } else if (type == VXGE_HW_EVENT_SERR) {
+ vxge_debug_init(VXGE_ERR,
+ "%s: Encountered Serious Error\n",
+ vdev->ndev->name);
+ } else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
+ vxge_debug_init(VXGE_ERR,
+ "%s: Encountered Critical Error\n",
+ 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...\n",
+ 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 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 = vpath_per_dev;
+ if ((vpath_per_dev == VXGE_USE_DEFAULT) &&
+ (max_config_dev == VXGE_MAX_CONFIG_DEV)) {
+ if (intr_type == MSI_X) {
+ /* No more CPU. Return vpath number as zero.*/
+ if (g_no_cpus == -1)
+ return 0;
+
+ if (!g_no_cpus)
+ g_no_cpus = num_online_cpus();
+
+ vpath_per_dev = g_no_cpus >> 1;
+ /* Uniprocessor system check? */
+ if (!vpath_per_dev)
+ 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 < vpath_per_dev)
+ vpath_per_dev = default_no_vpath;
+
+ g_no_cpus = g_no_cpus - (vpath_per_dev * 2);
+ if (g_no_cpus <= 0)
+ g_no_cpus = -1;
+
+ } else if (intr_type == INTA)
+ vpath_per_dev = 1;
+ else
+ vxge_assert(0);
+ }
+
+ if (vpath_per_dev == 1) {
+ vxge_debug_ll_config(VXGE_TRACE,
+ "%s: Disable transmit ans receive steering, \
+ as single vpath is configured", VXGE_DRIVER_NAME);
+ config_param->rth_steering = 0;
+ tx_steering_type = 0;
+ 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 < 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 =
+ ((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 Inta Set CI ON for only one vpath.
+ (Have only one free running timer)
+ */
+ if (intr_type == INTA) {
+ if (i == 0)
+ device_config->vp_config[i].tti.timer_ci_en =
+ VXGE_HW_TIM_TIMER_CI_ENABLE;
+ else
+ device_config->vp_config[i].tti.timer_ci_en =
+ VXGE_HW_TIM_TIMER_CI_DISABLE;
+ } else {
+ /* 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 = rxds_limit;
+ device_config->vp_config[i].ring.scatter_mode =
+ VXGE_HW_RING_SCATTER_MODE_A;
+
+ device_config->vp_config[i].ring.indicate_max_pkts =
+ ring_indicate_max_pkts;
+
+ /* Bounds check of indicate max packets */
+ if (device_config->vp_config[i].ring.indicate_max_pkts >
+ VXGE_HW_MAX_RING_INDICATE_MAX_PKTS) {
+ device_config->vp_config[i].ring.indicate_max_pkts =
+ VXGE_HW_MAX_RING_INDICATE_MAX_PKTS;
+ vxge_debug_ll_config(VXGE_TRACE,
+ "vxge_hw_device_initialize:\
+ indicate max packets = %d",
+ device_config->vp_config[i].ring.
+ indicate_max_pkts);
+ }
+
+ /* 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;
+
+ /* Print the values */
+ vxge_debug_ll_config(VXGE_TRACE, "%s : Vpath cfg params",
+ __func__);
+
+ vxge_debug_ll_config(VXGE_TRACE, "vp_id : %d",
+ device_config->vp_config[i].vp_id);
+ vxge_debug_ll_config(VXGE_TRACE, "mtu : %d",
+ device_config->vp_config[i].mtu);
+ vxge_debug_ll_config(VXGE_TRACE, "fifo.enable : %d",
+ device_config->vp_config[i].fifo.enable);
+ vxge_debug_ll_config(VXGE_TRACE, "fifo.max_frags : %d",
+ device_config->vp_config[i].fifo.max_frags);
+ vxge_debug_ll_config(VXGE_TRACE, "fifo.memblk_sz : %d",
+ device_config->vp_config[i].fifo.memblock_size);
+ vxge_debug_ll_config(VXGE_TRACE, "fifo.fifo_blks : %d",
+ device_config->vp_config[i].fifo.fifo_blocks);
+ vxge_debug_ll_config(VXGE_TRACE, "fifo.intr : %d",
+ device_config->vp_config[i].fifo.intr);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.intr_enable : %d",
+ device_config->vp_config[i].tti.intr_enable);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.btimer_val : %d",
+ device_config->vp_config[i].tti.btimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.timer_ac_en: %d",
+ device_config->vp_config[i].tti.timer_ac_en);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.timer_ci_en : %d",
+ device_config->vp_config[i].tti.timer_ci_en);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.timer_ri_en : %d",
+ device_config->vp_config[i].tti.timer_ri_en);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.util_sel : %d",
+ device_config->vp_config[i].tti.util_sel);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.ltimer_val : %d",
+ device_config->vp_config[i].tti.ltimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.rtimer_val : %d",
+ device_config->vp_config[i].tti.rtimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.urange_a : %d",
+ device_config->vp_config[i].tti.urange_a);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.urange_b : %d",
+ device_config->vp_config[i].tti.urange_b);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.urange_c : %d",
+ device_config->vp_config[i].tti.urange_c);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.uec_a : %d",
+ device_config->vp_config[i].tti.uec_a);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.uec_b : %d",
+ device_config->vp_config[i].tti.uec_b);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.uec_c : %d",
+ device_config->vp_config[i].tti.uec_c);
+ vxge_debug_ll_config(VXGE_TRACE, "tti.uec_d : %d",
+ device_config->vp_config[i].tti.uec_d);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.enable : %d",
+ device_config->vp_config[i].ring.enable);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.ring_blks : %d",
+ device_config->vp_config[i].ring.ring_blocks);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.buffer_mode:%d",
+ device_config->vp_config[i].ring.buffer_mode);
+ vxge_debug_ll_config(VXGE_TRACE, NULL, "ring.rxds_limit : %d",
+ device_config->vp_config[i].ring.rxds_limit);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.scatter_mode:%d",
+ device_config->vp_config[i].ring.scatter_mode);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.indic_mx_pkt:%d",
+ device_config->vp_config[i].ring.indicate_max_pkts);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.intr_enable : %d",
+ device_config->vp_config[i].rti.intr_enable);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.btimer_val : %d",
+ device_config->vp_config[i].rti.btimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.timer_ac_en : %d",
+ device_config->vp_config[i].rti.timer_ac_en);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.timer_ci_en : %d",
+ device_config->vp_config[i].rti.timer_ci_en);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.timer_ri_en : %d",
+ device_config->vp_config[i].rti.timer_ri_en);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.util_sel : %d",
+ device_config->vp_config[i].rti.util_sel);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.urange_a : %d",
+ device_config->vp_config[i].rti.urange_a);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.urange_b : %d",
+ device_config->vp_config[i].rti.urange_b);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.urange_c : %d",
+ device_config->vp_config[i].rti.urange_c);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.uec_a : %d",
+ device_config->vp_config[i].rti.uec_a);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.uec_b : %d",
+ device_config->vp_config[i].rti.uec_b);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.uec_c : %d",
+ device_config->vp_config[i].rti.uec_c);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.uec_d : %d",
+ device_config->vp_config[i].rti.uec_d);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.rtimer_val : %d",
+ device_config->vp_config[i].rti.rtimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "rti.ltimer_val : %d",
+ device_config->vp_config[i].rti.ltimer_val);
+ vxge_debug_ll_config(VXGE_TRACE, "rpa_strip_vlan_tag:%d",
+ device_config->vp_config[i].rpa_strip_vlan_tag);
+
+ } /* end VPATH */
+ vpath_per_dev = temp;
+ return no_of_vpaths;
+}
+
+/* initialize device configuratrions */
+static void vxge_device_config_init(struct vxge_hw_device_config *device_config)
+{
+ /* 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
+ if (intr_type != INTA) {
+ vxge_debug_init(VXGE_ERR,
+ "%s: This Kernel does not support "\
+ "MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
+ intr_type = INTA;
+ }
+#else
+ if ((intr_type != INTA) && (intr_type != MSI_X)) {
+ vxge_debug_init(VXGE_ERR,
+ "%s: Wrong intr_type requested. "
+ "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, "gro_enable : %d",
+ device_config->gro_enable);
+ 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 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 defined(CONFIG_XEN)
+ if (vdev->config.addr_learn_en)
+ vxge_debug_init(VXGE_TRACE,
+ "%s: MAC Address learning enabled", vdev->ndev->name);
+#endif
+ 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 PCI 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 s2io_tbl.
+ * 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\n", __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 (config_dev_cnt && (config_dev_cnt != total_dev_cnt))
+ vxge_debug_init(VXGE_ERR,
+ "%s: Configured %d of %d devices",
+ VXGE_DRIVER_NAME,
+ config_dev_cnt, total_dev_cnt);
+ config_dev_cnt = 0;
+ total_dev_cnt = 0;
+ g_no_cpus = 0;
+ vpath_per_dev = max_config_vpath;
+ }
+
+ total_dev_cnt++;
+ if (++config_dev_cnt > max_config_dev) {
+ ret = 0;
+ goto _exit0;
+ }
+
+ if (intr_type == INTA) {
+ if (config_dev_cnt > 1) {
+ /* Interrupt can't be shared across functions */
+ 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\n",
+ __FILE__, __LINE__);
+ goto _exit0;
+ }
+ memset(&ll_config, 0, sizeof(struct vxge_config));
+
+ ll_config.tx_steering_type = tx_steering_type;
+
+ ll_config.intr_type = intr_type;
+
+ 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);
+
+ 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;
+
+ /*
+ * As of today, xge driver do not using any consistent
+ * allocations. It might impact performance on such systems
+ * as sparc64 where coherent memory access is benefitial
+ * comparing to streaming for bi-directional access.
+ * And since HW descriptors require r/w access, it is
+ * better for performance to use consistent memory allocations.
+ */
+ 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: 0x%llx:0x%llx",
+ (unsigned long long)(ulong_t)attr.bar0,
+ (unsigned long long)(ulong_t)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: 0x%llx:0x%llx",
+ (unsigned long long)(ulong_t)attr.bar1,
+ (unsigned long long)(ulong_t)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 _exit5;
+ }
+
+ if (ll_config.device_hw_info.fw_version.major !=
+ VXGE_DRIVER_VERSION_MAJOR) {
+ vxge_debug_init(VXGE_ERR,
+ "FW Ver.(maj): %d does not match driver ver.: %d",
+ ll_config.device_hw_info.fw_version.major,
+ VXGE_DRIVER_VERSION_MAJOR);
+ ret = -EINVAL;
+ goto _exit5;
+ }
+
+ vpath_mask = ll_config.device_hw_info.vpath_mask;
+
+ if (vpath_mask == 0) {
+ vxge_debug_ll_config(VXGE_TRACE,
+ "%s: no more vpath, mask is zero",
+ VXGE_DRIVER_NAME);
+ ret = -EINVAL;
+ goto _exit5;
+ }
+
+ vxge_debug_ll_config(VXGE_TRACE,
+ "%s:%d Vpath mask = %llx\n", __func__, __LINE__,
+ vpath_mask);
+
+ /* Maximum vpaths per function */
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
+ if (!((vpath_mask) & vxge_mBIT(i)))
+ continue;
+ max_vpath_supported++;
+ }
+
+ /* 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 vpath", VXGE_DRIVER_NAME);
+ ret = 0;
+ goto _exit5;
+ }
+
+ if (intr_type == MSI_X) {
+ /* User entered small count to indicate */
+ if (ring_indicate_max_pkts < ll_config.napi_weight)
+ ll_config.napi_weight = ring_indicate_max_pkts;
+ }
+
+ /* Setting driver Callback APIs */
+ 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,
+ "can't initialize device (%d), resetting",
+ status);
+ /*
+ * in case of some errors device_initialize() will reset
+ * driver might want to try it one more time after small delay.
+ */
+ mdelay(1000);
+ status = vxge_hw_device_initialize((struct __vxge_hw_device **)
+ &hldev, &attr, device_config);
+ if (status != VXGE_HW_OK) {
+ vxge_debug_init(VXGE_ERR,
+ "can't initialize device (%d), exiting",
+ status);
+ ret = -EINVAL;
+ goto _exit5;
+ }
+ }
+
+ vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
+
+ /* set private device info */
+ pci_set_drvdata(pdev, hldev);
+
+ ll_config.gro_enable = gro;
+ ll_config.fifo_indicate_max_pkts =
+ (fifo_indicate_max_pkts < fifo_length) ?
+ fifo_length : fifo_indicate_max_pkts;
+ ll_config.intr_type = intr_type;
+ 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_steering_type = tx_steering_type;
+ ll_config.tx_pause_enable = tx_pause_enable;
+ ll_config.rx_pause_enable = rx_pause_enable;
+
+ if (vxge_device_register(hldev, &ll_config, high_dma, no_of_vpath,
+ &vdev)) {
+ ret = -EINVAL;
+ goto _exit6;
+ }
+
+ 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], 6);
+
+ /* 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 = exec_mode;
+ 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 _exit7;
+ }
+ macaddr = (u8 *)&entry->macaddr;
+ memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
+
+ /* Adjust the doubly linked list pointers */
+ 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...\\n",
+ 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;
+
+_exit7:
+ for (i = 0; i < vdev->no_of_vpath; i++)
+ vxge_free_mac_add_list(&vdev->vpaths[i]);
+
+ vxge_device_unregister(hldev);
+_exit6:
+ vxge_hw_device_terminate(hldev);
+_exit5:
+ iounmap(attr.bar1);
+_exit3:
+ iounmap(attr.bar0);
+_exit2:
+ pci_release_regions(pdev);
+_exit1:
+ pci_disable_device(pdev);
+_exit0:
+ kfree(device_config);
+ config_dev_cnt--;
+ pci_set_drvdata(pdev, NULL);
+ return ret;
+}
+
+/**
+ * s2io_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\n", __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);
+
+ /* we are safe to free it now */
+ free_netdev(dev);
+
+ vxge_debug_init(level_trace,
+ "%s:%d Device unregistered\n", __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...\n", __func__, __LINE__);
+}
+
+static int __init
+vxge_starter(void)
+{
+ int ret = 0;
+ char version[255];
+ sprintf(version, "%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();
+
+ ret = pci_register_driver(&vxge_driver);
+
+ if (config_dev_cnt && (config_dev_cnt != total_dev_cnt))
+ vxge_debug_init(VXGE_ERR,
+ "%s: Configured %d of %d devices",
+ VXGE_DRIVER_NAME, config_dev_cnt, total_dev_cnt);
+ return ret;
+}
+
+static void __exit
+vxge_closer(void)
+{
+ pci_unregister_driver(&vxge_driver);
+}
+module_init(vxge_starter);
+module_exit(vxge_closer);
diff -Nurp patch_6/drivers/net/vxge/vxge-main.h patch_7/drivers/net/vxge/vxge-main.h
--- patch_6/drivers/net/vxge/vxge-main.h 1969-12-31 16:00:00.000000000 -0800
+++ patch_7/drivers/net/vxge/vxge-main.h 2009-03-24 13:34:32.000000000 -0700
@@ -0,0 +1,563 @@
+/******************************************************************************
+ * 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.h: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
+ * Virtualized Server Adapter.
+ * Copyright(c) 2002-2009 Neterion Inc.
+ ******************************************************************************/
+#ifndef VXGE_MAIN_H
+#define VXGE_MAIN_H
+
+#include "vxge-traffic.h"
+#include "vxge-config.h"
+#include "vxge-version.h"
+#include <linux/list.h>
+
+#define VXGE_DRIVER_NAME "vxge"
+#define VXGE_DRIVER_VENDOR "Neterion, Inc"
+
+#define DRV_VERSION VXGE_VERSION_MAJOR"."VXGE_VERSION_MINOR"."\
+ VXGE_VERSION_FIX"."VXGE_VERSION_BUILD"-"\
+ VXGE_VERSION_FOR
+
+#define VXGE_USE_DEFAULT 0xffffffff
+#define VXGE_HW_VPATH_MSIX_ACTIVE 4
+#define XGE_HW_RXSYNC_FREQ_CNT 4
+#define VXGE_LL_WATCH_DOG_TIMEOUT (15 * HZ)
+#define VXGE_LL_RX_COPY_THRESHOLD 256
+#define VXGE_DEF_FIFO_LENGTH 84
+#define MAX_PYLD_JUMBO 9600
+#define MIN_MTU 68
+
+#define NO_STEERING 0
+#define PORT_STEERING 0x1
+#define RTH_STEERING 0x2
+#define RX_TOS_STEERING 0x3
+#define RX_VLAN_STEERING 0x4
+#define RTH_BUCKET_SIZE 4
+
+#define TX_PRIORITY_STEERING 1
+#define TX_VLAN_STEERING 2
+#define TX_PORT_STEERING 3
+#define TX_MULTIQ_STEERING 4
+
+#define VXGE_TTI_BTIMER_VAL 250000
+
+#define VXGE_TTI_LTIMER_VAL 1000
+#define VXGE_TTI_RTIMER_VAL 0
+#define VXGE_RTI_BTIMER_VAL 250
+#define VXGE_RTI_LTIMER_VAL 100
+#define VXGE_RTI_RTIMER_VAL 0
+#define VXGE_FIFO_INDICATE_MAX_PKTS VXGE_DEF_FIFO_LENGTH
+#define VXGE_ISR_POLLING_CNT 8
+#define VXGE_MAX_CONFIG_DEV 0xFF
+#define VXGE_EXEC_MODE_DISABLE 0
+#define VXGE_EXEC_MODE_ENABLE 1
+#define VXGE_MAX_CONFIG_PORT 1
+#define VXGE_ALL_VID_DISABLE 0
+#define VXGE_ALL_VID_ENABLE 1
+#define VXGE_PAUSE_FRM_DISABLE 0
+#define VXGE_PAUSE_FRM_ENABLE 1
+
+#define TTI_TX_URANGE_A 5
+#define TTI_TX_URANGE_B 15
+#define TTI_TX_URANGE_C 40
+#define TTI_TX_UFC_A 5
+#define TTI_TX_UFC_B 40
+#define TTI_TX_UFC_C 60
+#define TTI_TX_UFC_D 100
+
+#define RTI_RX_URANGE_A 5
+#define RTI_RX_URANGE_B 15
+#define RTI_RX_URANGE_C 40
+#define RTI_RX_UFC_A 1
+#define RTI_RX_UFC_B 5
+#define RTI_RX_UFC_C 10
+#define RTI_RX_UFC_D 15
+
+/* Milli secs timer period */
+#define VXGE_TIMER_DELAY 10000
+
+#define VXGE_LL_MAX_FRAME_SIZE(dev) ((dev)->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE)
+
+enum vxge_reset_event {
+ /* reset events */
+ VXGE_LL_VPATH_RESET = 0,
+ VXGE_LL_DEVICE_RESET = 1,
+ VXGE_LL_FULL_RESET = 2,
+ VXGE_LL_START_RESET = 3,
+ VXGE_LL_COMPL_RESET = 4
+};
+/* These flags represent the devices temporary state */
+enum vxge_device_state_t {
+__VXGE_STATE_RESET_CARD = 0,
+__VXGE_STATE_CARD_UP
+};
+
+enum vxge_mac_addr_state {
+ /* mac address states */
+ VXGE_LL_MAC_ADDR_IN_LIST = 0,
+ VXGE_LL_MAC_ADDR_IN_DA_TABLE = 1
+};
+
+struct macInfo {
+ unsigned char macaddr[ETH_ALEN];
+ unsigned char macmask[ETH_ALEN];
+ unsigned int vpath_no;
+ enum vxge_mac_addr_state state;
+};
+
+struct vxge_config {
+ int tx_pause_enable;
+ int rx_pause_enable;
+
+#define NEW_NAPI_WEIGHT 64
+ int napi_weight;
+#define VXGE_GRO_DONOT_AGGREGATE 0
+#define VXGE_GRO_ALWAYS_AGGREGATE 1
+ int gro_enable;
+ int intr_type;
+#define INTA 0
+#define MSI 1
+#define MSI_X 2
+
+ int addr_learn_en;
+
+ int rth_steering;
+ int rth_algorithm;
+ int rth_hash_type_tcpipv4;
+ int rth_hash_type_ipv4;
+ int rth_hash_type_tcpipv6;
+ int rth_hash_type_ipv6;
+ int rth_hash_type_tcpipv6ex;
+ int rth_hash_type_ipv6ex;
+ int rth_bkt_sz;
+ int rth_jhash_golden_ratio;
+ int tx_steering_type;
+ int fifo_indicate_max_pkts;
+ struct vxge_hw_device_hw_info device_hw_info;
+};
+
+struct vxge_msix_entry {
+ /* Mimicing the msix_entry struct of Kernel. */
+ u16 vector;
+ u16 entry;
+ u16 in_use;
+ void *arg;
+};
+
+/* Software Statistics */
+
+struct vxge_sw_stats {
+ /* Network Stats (interface stats) */
+ struct net_device_stats net_stats;
+
+ /* Tx */
+ u64 tx_frms;
+ u64 tx_errors;
+ u64 tx_bytes;
+ u64 txd_not_free;
+ u64 txd_out_of_desc;
+
+ /* Virtual Path */
+ u64 vpaths_open;
+ u64 vpath_open_fail;
+
+ /* Rx */
+ u64 rx_frms;
+ u64 rx_errors;
+ u64 rx_bytes;
+ u64 rx_mcast;
+
+ /* Misc. */
+ u64 link_up;
+ u64 link_down;
+ u64 pci_map_fail;
+ u64 skb_alloc_fail;
+};
+
+struct vxge_mac_addrs {
+ struct list_head item;
+ u64 macaddr;
+ u64 macmask;
+ enum vxge_mac_addr_state state;
+};
+
+struct vxgedev;
+
+struct vxge_fifo_stats {
+ u64 tx_frms;
+ u64 tx_errors;
+ u64 tx_bytes;
+ u64 txd_not_free;
+ u64 txd_out_of_desc;
+ u64 pci_map_fail;
+};
+
+struct vxge_fifo {
+ struct net_device *ndev;
+ struct pci_dev *pdev;
+ struct __vxge_hw_fifo *handle;
+ /* The vpath id maintained in the driver -
+ * 0 to 'maximum_vpaths_in_function - 1'
+ */
+ int driver_id;
+ int tx_steering_type;
+ int indicate_max_pkts;
+ spinlock_t tx_lock;
+ int queue_state;
+ /* flag used to maintain queue state when MULTIQ is not enabled */
+#define VPATH_QUEUE_START 0
+#define VPATH_QUEUE_STOP 1
+
+ /* Tx stats */
+ struct vxge_fifo_stats stats;
+
+} ____cacheline_aligned;
+
+struct vxge_ring_stats {
+ u64 prev_rx_frms;
+ u64 rx_frms;
+ u64 rx_errors;
+ u64 rx_dropped;
+ u64 rx_bytes;
+ u64 rx_mcast;
+ u64 pci_map_fail;
+ u64 skb_alloc_fail;
+};
+
+struct vxge_ring {
+ struct net_device *ndev;
+ struct pci_dev *pdev;
+ struct __vxge_hw_ring *handle;
+ /* The vpath id maintained in the driver -
+ * 0 to 'maximum_vpaths_in_function - 1'
+ */
+ int driver_id;
+
+ /* copy of the flag indicating whether rx_csum is to be used */
+ u32 rx_csum;
+
+ int indicate_max_pkts;
+ int pkts_processed;
+ int budget;
+ int gro_enable;
+
+ struct napi_struct napi;
+
+#define VXGE_MAX_MAC_ADDR_COUNT 30
+
+ int vlan_tag_strip;
+ struct vlan_group *vlgrp;
+ int rx_vector_no;
+ enum vxge_hw_status last_status;
+
+ /* Rx stats */
+ struct vxge_ring_stats stats;
+} ____cacheline_aligned;
+
+struct vxge_vpath {
+
+ struct vxge_fifo fifo;
+ struct vxge_ring ring;
+
+ struct __vxge_hw_vpath_handle *handle;
+
+ /* Actual vpath id for this vpath in the device - 0 to 16 */
+ int device_id;
+ int max_mac_addr_cnt;
+ int is_configured;
+ int is_open;
+ struct vxgedev *vdev;
+ u8 (macaddr)[ETH_ALEN];
+ u8 (macmask)[ETH_ALEN];
+
+#define VXGE_MAX_LEARN_MAC_ADDR_CNT 2048
+ /* mac addresses currently programmed into NIC */
+ u16 mac_addr_cnt;
+ u16 mcast_addr_cnt;
+ struct list_head mac_addr_list;
+
+ u32 level_err;
+ u32 level_trace;
+};
+#define VXGE_COPY_DEBUG_INFO_TO_LL(vdev, err, trace) { \
+ for (i = 0; i < vdev->no_of_vpath; i++) { \
+ vdev->vpaths[i].level_err = err; \
+ vdev->vpaths[i].level_trace = trace; \
+ } \
+ vdev->level_err = err; \
+ vdev->level_trace = trace; \
+}
+
+struct vxge_error {
+ enum vxge_hw_event type;
+ u32 vp_id;
+};
+
+struct vxgedev {
+ struct net_device *ndev;
+ struct pci_dev *pdev;
+ struct __vxge_hw_device *devh;
+ struct vlan_group *vlgrp;
+ int vlan_tag_strip;
+ struct vxge_config config;
+ volatile unsigned long state;
+
+ /* Indicates which vpath to reset */
+ volatile unsigned long vp_reset;
+
+ /* Timer used for polling vpath resets */
+ struct timer_list vp_reset_timer;
+
+ /* Timer used for polling vpath lockup */
+ struct timer_list vp_lockup_timer;
+
+ /*
+ * Flags to track whether device is in All Multicast
+ * or in promiscuous mode.
+ */
+ u16 all_multi_flg;
+
+ /* A flag indicating whether rx_csum is to be used or not. */
+ u32 rx_csum;
+
+ struct vxge_msix_entry *vxge_entries;
+ struct msix_entry *entries;
+ /*
+ * 4 for each vpath * 17;
+ * total is 68
+ */
+#define VXGE_MAX_REQUESTED_MSIX 68
+ char desc[VXGE_MAX_REQUESTED_MSIX][80];
+
+ struct vxge_error cric_err_event;
+
+ int max_vpath_supported;
+ int no_of_vpath;
+
+ struct napi_struct napi;
+
+ int exec_mode;
+ int max_config_port;
+ struct vxge_vpath *vpaths;
+
+ struct __vxge_hw_vpath_handle *vp_handles[VXGE_HW_MAX_VIRTUAL_PATHS];
+ void __iomem *bar0;
+ void __iomem *bar1;
+ struct vxge_sw_stats stats;
+ int mtu;
+ /* Below variables are used for vpath selection to transmit a packet */
+ u8 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS];
+ u64 vpaths_deployed;
+
+ u32 intr_cnt;
+ u32 level_err;
+ u32 level_trace;
+ char fw_version[VXGE_HW_FW_VERSION_LEN];
+};
+
+struct vxge_rx_priv {
+ struct sk_buff *skb;
+ dma_addr_t data_dma;
+ dma_addr_t data_size;
+};
+
+struct vxge_tx_priv {
+ struct sk_buff *skb;
+ dma_addr_t dma_buffers[MAX_SKB_FRAGS+1];
+};
+
+#define VXGE_MODULE_PARAM_INT(p, val) \
+ static int p = val; \
+ module_param(p, int, 0)
+
+#define vxge_os_bug(fmt...) { printk(fmt); BUG(); }
+
+#define vxge_os_timer(timer, handle, arg, exp) do { \
+ init_timer(&timer); \
+ timer.function = handle; \
+ timer.data = (unsigned long) arg; \
+ mod_timer(&timer, (jiffies + exp)); \
+ } while (0);
+
+static inline struct net_device *vxge_alloc_etherdev(size_t size,
+ int no_of_vpath,
+ int tx_steering_type)
+{
+ struct net_device *ndev;
+
+ if (tx_steering_type == TX_MULTIQ_STEERING)
+ ndev = alloc_etherdev_mq(size, no_of_vpath);
+ else
+ ndev = alloc_etherdev(size);
+
+ return ndev;
+}
+
+#define VXGE_CHECK_PCI_CHANNEL_OFFLINE(pdev) { \
+ if (pci_channel_offline(pdev)) \
+ return IRQ_NONE; \
+}
+
+int vxge_device_register(struct __vxge_hw_device *devh,
+ struct vxge_config *config,
+ int high_dma, int no_of_vpath,
+ struct vxgedev **vdev);
+
+void vxge_device_unregister(struct __vxge_hw_device *devh);
+
+void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id);
+
+void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id);
+
+void vxge_callback_link_up(struct __vxge_hw_device *devh);
+
+void vxge_callback_link_down(struct __vxge_hw_device *devh);
+
+enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
+ struct macInfo *mac);
+
+int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac);
+
+int vxge_reset(struct vxgedev *vdev);
+
+enum vxge_hw_status
+vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
+ u8 t_code, void *userdata);
+
+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);
+
+int vxge_close(struct net_device *dev);
+
+int vxge_open(struct net_device *dev);
+
+void vxge_close_vpaths(struct vxgedev *vdev, int index);
+
+int vxge_open_vpaths(struct vxgedev *vdev);
+
+enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev);
+
+void vxge_stop_all_tx_queue(struct vxgedev *vdev);
+
+void vxge_stop_tx_queue(struct vxge_fifo *fifo);
+
+void vxge_start_all_tx_queue(struct vxgedev *vdev);
+
+void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb);
+
+enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
+ struct macInfo *mac);
+
+enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
+ struct macInfo *mac);
+
+int vxge_mac_list_add(struct vxge_vpath *vpath,
+ struct macInfo *mac);
+
+void vxge_free_mac_add_list(struct vxge_vpath *vpath);
+
+enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath);
+
+enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath);
+
+int do_vxge_close(struct net_device *dev, int do_io);
+extern void initialize_ethtool_ops(struct net_device *ndev);
+/**
+ * #define VXGE_DEBUG_INIT: debug for initialization functions
+ * #define VXGE_DEBUG_TX : debug transmit related functions
+ * #define VXGE_DEBUG_RX : debug recevice related functions
+ * #define VXGE_DEBUG_MEM : debug memory module
+ * #define VXGE_DEBUG_LOCK: debug locks
+ * #define VXGE_DEBUG_SEM : debug semaphore
+ * #define VXGE_DEBUG_ENTRYEXIT: debug functions by adding entry exit statements
+*/
+#define VXGE_DEBUG_INIT 0x00000001
+#define VXGE_DEBUG_TX 0x00000002
+#define VXGE_DEBUG_RX 0x00000004
+#define VXGE_DEBUG_MEM 0x00000008
+#define VXGE_DEBUG_LOCK 0x00000010
+#define VXGE_DEBUG_SEM 0x00000020
+#define VXGE_DEBUG_ENTRYEXIT 0x00000040
+#define VXGE_DEBUG_INTR 0x00000080
+#define VXGE_DEBUG_LL_CONFIG 0x00000100
+
+/* Debug tracing for VXGE driver */
+#ifndef VXGE_DEBUG_MASK
+#define VXGE_DEBUG_MASK 0x0
+#endif
+
+#if (VXGE_DEBUG_LL_CONFIG & VXGE_DEBUG_MASK)
+#define vxge_debug_ll_config(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_LL_CONFIG, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_ll_config(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_INIT & VXGE_DEBUG_MASK)
+#define vxge_debug_init(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_INIT, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_init(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_TX & VXGE_DEBUG_MASK)
+#define vxge_debug_tx(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_TX, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_tx(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_RX & VXGE_DEBUG_MASK)
+#define vxge_debug_rx(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_RX, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_rx(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_MEM & VXGE_DEBUG_MASK)
+#define vxge_debug_mem(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_MEM, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_mem(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)
+#define vxge_debug_entryexit(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_ENTRYEXIT, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_entryexit(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_INTR & VXGE_DEBUG_MASK)
+#define vxge_debug_intr(level, fmt, ...) \
+ vxge_debug_ll(level, VXGE_DEBUG_INTR, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_intr(level, fmt, ...)
+#endif
+
+#define VXGE_DEVICE_DEBUG_LEVEL_SET(level, mask, vdev) {\
+ vxge_hw_device_debug_set((struct __vxge_hw_device *)vdev->devh, \
+ level, mask);\
+ VXGE_COPY_DEBUG_INFO_TO_LL(vdev, \
+ vxge_hw_device_error_level_get((struct __vxge_hw_device *) \
+ vdev->devh), \
+ vxge_hw_device_trace_level_get((struct __vxge_hw_device *) \
+ vdev->devh));\
+}
+
+#ifdef NETIF_F_GSO
+#define vxge_tcp_mss(skb) (skb_shinfo(skb)->gso_size)
+#define vxge_udp_mss(skb) (skb_shinfo(skb)->gso_size)
+#define vxge_offload_type(skb) (skb_shinfo(skb)->gso_type)
+#endif
+
+#endif
--
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