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Message-Id: <1237018906.4966.435.camel@flash>
Date: 14 Mar 2009 00:21:57 -0800
From: Ramkrishna Vepa <ram.vepa@...erion.com>
To: Netdev <netdev@...r.kernel.org>,
David Miller <davem@...emloft.net>,
Jeff Garzik <jgarzik@...ox.com>
Cc: Ramkrishna Vepa <ram.vepa@...erion.com>
Subject: [net-2.6 PATCH 8/10] Neterion: New driver: Main entry points
This patch takes care of implementing all driver entry point functions.
- Definition of all module loadable paramters.
- Implementation of all driver entry point functions.
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 -urpN patch_7/drivers/net/vxge/vxge-main.c patch_8/drivers/net/vxge/vxge-main.c
--- patch_7/drivers/net/vxge/vxge-main.c 1969-12-31 16:00:00.000000000 -0800
+++ patch_8/drivers/net/vxge/vxge-main.c 2009-03-13 00:14:28.000000000 -0700
@@ -0,0 +1,5204 @@
+/******************************************************************************
+ * 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
+*
+* lro:
+* Enable Large Receive Offload (LRO)
+* 0 - DISABLE
+* 1 - ENABLE
+*
+* ring_blocks:
+* Numbers of RxD blocks in the ring
+* MIN - 1 and MAX - 128
+*
+* 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
+*
+* rx_steering_type:
+* This parameter is for configuring the receive side steering.
+* 0 - No steering
+* 1 - Reserved
+* 2 - RTH steering (default)
+*
+* 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
+
+#define VXGE_PCI_DEVICE_ID_TITAN_3 0x66f3
+
+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("Titan family network driver");
+
+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(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(ring_blocks, VXGE_HW_DEF_RING_BLOCKS);
+VXGE_MODULE_PARAM_INT(fifo_length, VXGE_DEF_FIFO_LENGTH);
+VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
+
+#if defined(HAVE_NETDEV_POLL)
+
+VXGE_MODULE_PARAM_INT(napi, VXGE_ENABLE_NAPI);
+
+#endif
+
+int netq = VXGE_NETQ_DISABLE;
+VXGE_MODULE_PARAM_INT(lro, VXGE_HW_LRO_DONT_AGGR_FWD_PKTS);
+VXGE_MODULE_PARAM_INT(rx_steering_type, RTH_STEERING);
+
+VXGE_MODULE_PARAM_INT(tx_steering_type, TX_MULTIQ_STEERING);
+
+VXGE_MODULE_PARAM_INT(lro_max_bytes, VXGE_LRO_MAX_BYTES);
+
+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);
+
+int config_dev_cnt = 0, total_dev_cnt = 0;
+int g_no_cpus;
+char g_serial_num[VXGE_HW_VPD_LENGTH + 1];
+char g_product_name[VXGE_HW_VPD_LENGTH + 1];
+unsigned int vpath_per_dev;
+
+#define VXGE_LL_MAX_FRAME_SIZE(dev) ((dev)->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE)
+
+struct vxge_dma_async_data *async_data;
+
+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;
+ unsigned int got_tx;
+ 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, &got_tx,
+ (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_VPATH_RX(struct vxge_ring *ring)
+{
+ unsigned int got_rx;
+
+ vxge_hw_vpath_poll_rx(ring->handle, &got_rx);
+}
+
+static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
+{
+ int i;
+
+ /* Complete all receives*/
+ for (i = 0; i < vdev->no_of_vpath; i++)
+ VXGE_COMPLETE_VPATH_RX(&vdev->vpaths[i].ring);
+}
+
+/*
+ * 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);
+
+}
+
+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 __hw_device *devh, void *userdata)
+{
+ struct net_device *dev = (struct net_device *)userdata;
+ 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 __hw_device *devh, void *userdata)
+{
+ struct net_device *dev = (struct net_device *)userdata;
+ 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.
+ */
+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_free
+ */
+void
+vxge_rx_free(void *dtrh)
+{
+ struct vxge_rx_priv *rx_priv;
+
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s:%d\n", __func__, __LINE__);
+ rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
+ dev_kfree_skb(rx_priv->skb);
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s:%d Exiting...\n", __func__, __LINE__);
+}
+
+/*
+ * vxge_rx_map
+ */
+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_unmap
+ */
+
+void
+vxge_rx_unmap(struct vxge_ring *ring, dma_addr_t data_dma,
+ dma_addr_t data_size)
+{
+ vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d\n",
+ ring->ndev->name, __func__, __LINE__);
+
+ pci_unmap_single(ring->pdev, data_dma, data_size, PCI_DMA_FROMDEVICE);
+
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s: %s:%d Exiting...\n",
+ ring->ndev->name, __func__, __LINE__);
+}
+
+#define RX_FOR_DEVICE 1
+#define RX_FOR_CPU 2
+
+/*
+ * vxge_rx_sync
+ */
+void
+vxge_rx_sync(dma_addr_t data_dma, dma_addr_t data_size,
+ struct vxge_ring *ring, int flags)
+{
+ vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d\n",
+ ring->ndev->name, __func__, __LINE__);
+
+ if (flags == RX_FOR_CPU) {
+ pci_dma_sync_single_for_cpu(ring->pdev,
+ data_dma, data_size, PCI_DMA_FROMDEVICE);
+ } else if (flags == RX_FOR_DEVICE) {
+ pci_dma_sync_single_for_device(ring->pdev,
+ data_dma, data_size, PCI_DMA_FROMDEVICE);
+ }
+
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s: %s:%d Exiting...\n",
+ ring->ndev->name, __func__, __LINE__);
+}
+
+/*
+ * vxge_rx_initial_replenish
+ * @dtrh: DTR handle to operate
+ * @userdata: channel's userdata, points to vdev usually
+ *
+ * Allocation of RxD as an initial replenish procedure.
+ */
+enum vxge_hw_status
+vxge_rx_initial_replenish(void *dtrh, u32 index,
+ void *userdata, enum vxge_hw_reopen reopen)
+{
+ struct vxge_ring *ring = (struct vxge_ring *)userdata;
+
+ 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)) {
+ vxge_rx_free(dtrh);
+ 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->lro_enable) {
+
+ if (ring->vlgrp && ext_info->vlan &&
+ (ring->vlan_tag_strip ==
+ VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
+ lro_vlan_hwaccel_receive_skb(&ring->lro_mgr, skb,
+ ring->vlgrp, ext_info->vlan, ext_info);
+ else
+ lro_receive_skb(&ring->lro_mgr, skb,
+ (void *)ext_info);
+
+ } else {
+
+ if (ring->vlgrp && vlan &&
+ (ring->vlan_tag_strip ==
+ VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE)) {
+ if (ring->napi_enable)
+ vlan_hwaccel_receive_skb(skb, ring->vlgrp,
+ vlan);
+ else
+ vlan_hwaccel_rx(skb, ring->vlgrp, vlan);
+ } else {
+
+ {
+ /* It is an ARP packet, send it to
+ * the Linux stack */
+ memset(skb->cb, 0, sizeof(skb->cb));
+
+ if (ring->napi_enable)
+ netif_receive_skb(skb);
+ else
+ netif_rx(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)
+{
+ vxge_rx_sync(rx_priv->data_dma, rx_priv->data_size,
+ ring, RX_FOR_DEVICE);
+ 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 __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 = NULL;
+ }
+ *first_dtr = post_dtr;
+ } else
+ vxge_hw_ring_rxd_post_post(ringh, post_dtr);
+ dtr_count++;
+ *dtr_cnt = dtr_count;
+}
+
+#ifdef VXGE_RX_ERR_DBG
+void vxge_dump_packet(struct sk_buff *skb, int pkt_length)
+{
+ int i = 0, j;
+ u8 *ptr = skb->data;
+
+ printk(KERN_CRIT "\n Packet contents : Length = %d\n", pkt_length);
+ for (j = 0; j < pkt_length; j += 2, i += 2) {
+ printk(KERN_CRIT "%02x%02x ", *(ptr + j), *(ptr + j + 1));
+ if (!((i + 2) % 16))
+ printk("\n");
+ }
+
+}
+#endif
+
+/*
+ * vxge_rx_1b_compl
+ * @channel:
+ * @userdata:
+ *
+ * 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 __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, VXGE_HW_OPEN_NORMAL, 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)) {
+
+#ifdef VXGE_RX_ERR_DBG
+ if (t_code == VXGE_HW_RING_T_CODE_L2_FRM_ERR)
+ vxge_dump_packet(skb, pkt_length);
+#endif
+
+ 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);
+ vxge_rx_unmap(ring,
+ data_dma, data_size);
+ vxge_hw_ring_rxd_pre_post(ringh,
+ dtr);
+ vxge_post(&dtr_cnt, &first_dtr, dtr,
+ ringh);
+ } else {
+ vxge_rx_free(dtr);
+ 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);
+
+ vxge_rx_sync(data_dma, data_size,
+ ring, RX_FOR_CPU);
+
+ 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);
+
+ if (ring->napi_enable) {
+
+ /* NEW NAPI */
+ 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__);
+ if (ring->lro_enable)
+
+ lro_flush_all(&ring->lro_mgr);
+
+ return VXGE_HW_OK;
+}
+
+/*
+ * vxge_xmit_compl
+ * @channel:
+ * @userdata:
+ *
+ * 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 __hw_fifo *fifo_hw, void *dtr,
+ void *dtr_priv, 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 \
+ dtr_priv = 0x%llx tcode = 0x%x\n",
+ fifo->ndev->name, __func__, __LINE__,
+ (u64)fifo_hw, (u64)dtr, (u64)dtr_priv, 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, &dtr_priv, &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 */
+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 vxge_list *entry, *next;
+ vxge_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 __hw_device *hldev;
+
+ hldev = (struct __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 __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_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ 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);
+ goto _exit2;
+ }
+
+ 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);
+ goto _exit2;
+ }
+
+#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);
+ goto _exit2;
+ }
+ }
+#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(vxge_do_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(vxge_do_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);
+ if (fifo) {
+ 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,
+ enum vxge_hw_reopen reopen)
+{
+ 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;
+
+ vxge_rx_unmap(ring, rx_priv->data_dma, rx_priv->data_size);
+ vxge_rx_free(dtrh);
+ 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, void *dtr_priv,
+ enum vxge_hw_txdl_state state, void *userdata,
+ enum vxge_hw_reopen reopen)
+{
+ 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 __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 vxge_list *list_head;
+ struct vxge_list *entry, *next;
+ u8 *mac_address = NULL;
+
+ vxge_debug_entryexit(VXGE_TRACE,
+ "%s:%d\n", __func__, __LINE__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __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++) {
+ mac_entry = (struct vxge_mac_addrs *)
+ vxge_list_first_get(list_head);
+
+ vxge_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++) {
+
+ vxge_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 __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__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __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
+*/
+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);
+
+ /* 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;
+}
+
+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);
+
+ 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_COMPLETE_VPATH_RX(ring);
+
+ if (ring->pkts_processed < budget_org) {
+ napi_complete(napi);
+ /* Re enable the Rx interrupts for the vpath */
+ vxge_hw_channel_msix_unmask((struct __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 __hw_device *hldev = (struct __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_COMPLETE_VPATH_RX(ring);
+ 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 __hw_device *hldev;
+ struct vxgedev *vdev;
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __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 */
+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;
+ }
+
+ vxge_list_insert(&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 vxge_list *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);
+
+ vxge_list_for_each_safe(entry, next, &vpath->mac_addr_list) {
+ if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
+ vxge_list_remove(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
+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 vxge_list *entry, *next;
+
+ memset(&mac_info, 0, sizeof(struct macInfo));
+
+ if (vpath->is_open) {
+
+ vxge_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;
+ }
+}
+
+static int
+vxge_get_skb_header(struct sk_buff *skb,
+ void **iphdr, void **tcphdr,
+ u64 *hdr_flags, void *priv)
+{
+ struct vxge_hw_ring_rxd_info *ext_info =
+ (struct vxge_hw_ring_rxd_info *)priv;
+
+ /* Verify that this is a valid IPv4 TCP packet */
+ if (!(ext_info->proto & (VXGE_HW_FRAME_PROTO_TCP |
+ VXGE_HW_FRAME_PROTO_IPV4)))
+ return -1;
+
+ /* Set network headers */
+ skb_reset_network_header(skb);
+ skb_set_transport_header(skb, ip_hdrlen(skb));
+ *iphdr = ip_hdr(skb);
+ *tcphdr = tcp_hdr(skb);
+ *hdr_flags = LRO_IPV4 | LRO_TCP;
+
+ return 0;
+}
+
+/* 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;
+
+ struct net_lro_mgr *lro_mgr = NULL;
+
+ if (vdev->config.lro_enable) {
+ /* Initialize max aggregatable pkts per session based on MTU */
+ vdev->config.lro_max_aggr_per_sess =
+ (vdev->config.lro_max_bytes - 1) / vdev->mtu;
+
+ if (vdev->config.lro_max_aggr_per_sess < MIN_LRO_PACKETS)
+ vdev->config.lro_max_aggr_per_sess = MIN_LRO_PACKETS;
+
+ if (vdev->config.lro_max_aggr_per_sess > MAX_LRO_PACKETS)
+ vdev->config.lro_max_aggr_per_sess = MAX_LRO_PACKETS;
+ }
+
+ 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_init = NULL;
+ 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,
+ NULL, &(vdev->vpaths[i].handle));
+ if (status == VXGE_HW_OK) {
+ vdev->vpaths[i].fifo.handle =
+ (struct __hw_fifo *)attr.fifo_attr.userdata;
+ vdev->vpaths[i].ring.handle =
+ (struct __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.aggr_ack =
+ vdev->config.aggr_ack;
+ 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.lro_enable =
+ vdev->config. lro_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;
+ }
+
+ if (vdev->config.lro_enable) {
+
+ lro_mgr = &vdev->vpaths[i].ring.lro_mgr;
+ lro_mgr->dev = vdev->ndev;
+ if (vdev->config.napi_enable)
+ lro_mgr->features =
+ LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
+
+ if (vdev->vpaths[i].ring.vlan_tag_strip)
+ lro_mgr->features |= LRO_F_EXTRACT_VLAN_ID;
+
+ lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
+ lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
+ lro_mgr->max_desc = MAX_LRO_SESSIONS;
+ lro_mgr->lro_arr = vdev->vpaths[i].ring.lro_desc;
+ lro_mgr->get_skb_header = vxge_get_skb_header;
+ lro_mgr->max_aggr = vdev->config.lro_max_aggr_per_sess;
+
+ }
+
+ vp_id = vxge_hw_vpath_id(vdev->vpaths[i].handle);
+ 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.
+ */
+irqreturn_t vxge_isr_napi(int irq, void *dev_id)
+{
+ struct __hw_device *hldev = (struct __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 = vxge_hw_device_private_get(hldev);
+ vdev = netdev_priv(dev);
+
+ VXGE_CHECK_PCI_CHANNEL_OFFLINE(vdev->pdev);
+
+ if (unlikely(!is_vxge_card_up(vdev)))
+ return IRQ_NONE;
+
+ dev = (struct net_device *)vdev->ndev;
+ 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;
+}
+
+/*
+ * vxge_isr
+ * @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. It identifies the reason
+ * for the interrupt and calls the relevant service routines.
+ */
+irqreturn_t vxge_isr(int irq, void *dev_id)
+{
+ struct __hw_device *hldev = (struct __hw_device *)dev_id;
+ struct vxgedev *vdev;
+ struct net_device *dev;
+ enum vxge_hw_status status;
+ u64 reason;
+
+ vxge_debug_intr(VXGE_TRACE,
+ "%s:%d\n", __func__, __LINE__);
+ dev = vxge_hw_device_private_get(hldev);
+ 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);
+ VXGE_COMPLETE_ALL_RX(vdev);
+ VXGE_COMPLETE_ALL_TX(vdev);
+ vxge_hw_device_unmask_all(hldev);
+ 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
+
+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;
+}
+
+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 __hw_channel *)ring->handle,
+ ring->rx_vector_no);
+
+ napi_schedule(&ring->napi);
+ return IRQ_HANDLED;
+}
+
+irqreturn_t
+vxge_rx_msix_handle(int irq, void *dev_id)
+{
+ struct vxge_ring *ring = (struct vxge_ring *)dev_id;
+
+ VXGE_COMPLETE_VPATH_RX(ring);
+
+ return IRQ_HANDLED;
+}
+
+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;
+}
+
+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 = kmalloc(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 __hw_device *hldev;
+ hldev = (struct __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);
+ }
+}
+
+int vxge_add_isr(struct vxgedev *vdev)
+{
+ int ret = 0;
+ struct __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 __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,
+ vdev->config.napi_enable ?
+ vxge_rx_msix_napi_handle :
+ vxge_rx_msix_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,
+ vdev->config.napi_enable ? vxge_isr_napi : vxge_isr,
+ 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);
+}
+
+/*
+ * 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 __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 __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 defined(HAVE_NETDEV_POLL)
+ /* Initialize napi */
+ if (vdev->config.napi_enable) {
+
+ 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);
+ }
+ }
+
+ }
+#endif
+
+ /* 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));
+
+ 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);
+
+ vxge_start_all_tx_queue(vdev);
+
+ goto out0;
+
+out2:
+ vxge_rem_isr(vdev);
+
+ /* Disable napi */
+ if (vdev->config.napi_enable) {
+ 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 vxge_list *entry, *next;
+ if (vxge_list_is_empty(&vpath->mac_addr_list))
+ return;
+
+ vxge_list_for_each_safe(entry, next, &vpath->mac_addr_list) {
+ vxge_list_remove(entry);
+ kfree((struct vxge_mac_addrs *)entry);
+ }
+}
+
+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 __hw_device *hldev;
+ int i;
+ u64 val64, vpath_vector;
+ vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d\n",
+ dev->name, __func__, __LINE__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ vdev = (struct vxgedev *)netdev_priv(dev);
+ hldev = (struct __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_reset_timer);
+
+ /* Disable napi */
+ if (vdev->config.napi_enable) {
+ 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.
+ */
+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.
+ */
+struct net_device_stats *
+vxge_get_stats(struct net_device *dev)
+{
+ struct vxgedev *vdev;
+ struct net_device_stats *net_stats;
+ int k;
+
+ vxge_assert(dev && netdev_priv(dev));
+ 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 specefic 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.
+ * This function has support for ethtool, adding multiple MAC addresses on
+ * the NIC and some DBG commands for the util tool.
+ */
+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__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ 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__);
+}
+
+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__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ 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__);
+}
+
+static void
+vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
+{
+ struct vxgedev *vdev;
+ struct vxge_vpath *vpath;
+ int vp_id;
+
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ 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);
+ }
+}
+
+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__);
+ vxge_assert(dev);
+ vxge_assert(netdev_priv(dev));
+
+ 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 __hw_device *devh,
+ 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 __hw_device *hldev = (struct __hw_device *)devh;
+ struct vxgedev *vdev;
+ int i, ret = 0;
+ *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 = devh;
+ 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;
+
+ if (vdev->config.cksum_offload_enable) {
+ 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__);
+ }
+
+ if (vdev->config.tso_enable)
+ ndev->features |= NETIF_F_TSO;
+
+ if (vdev->config.tso_enable)
+ ndev->features |= NETIF_F_TSO6;
+
+ if (vdev->config.lro_enable)
+ ndev->features |= NETIF_F_LRO;
+
+ 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_device_stats_clear(vdev->devh);
+ if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
+ vxge_debug_init(
+ vxge_hw_device_trace_level_get(hldev),
+ "%s: vxge_hw_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
+ * @uld_info: pointer on private device info
+ *
+ * This function will unregister and free network device
+ */
+void
+vxge_device_unregister(struct __hw_device *devh)
+{
+ struct __hw_device *hldev = (struct __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 = vxge_hw_device_private_get(hldev);
+ 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.
+ */
+void
+vxge_callback_crit_err(struct __hw_device *devh, void *userdata,
+ enum vxge_hw_event type, u64 vp_id)
+{
+ struct net_device *dev = (struct net_device *)userdata;
+ 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(devh);
+ 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__);
+}
+
+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)
+ 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] = 100 / 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)
+{
+ 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) {
+ if (netq)
+ vpath_per_dev = VXGE_HW_MAX_VIRTUAL_PATHS;
+ else {
+
+ /* 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 (!bVAL1(vpath_mask, i))
+ continue;
+ else
+ default_no_vpath++;
+ if (default_no_vpath < vpath_per_dev)
+ vpath_per_dev = default_no_vpath;
+
+ /* If both tx_steering and Rx_steering are
+ disabled, enable only one Vpath */
+ if ((!tx_steering_type &&
+ (rx_steering_type != RTH_STEERING) &&
+ !addr_learn_en)) {
+ vpath_per_dev = 1;
+ vxge_debug_ll_config(VXGE_TRACE,
+ "%s: Configuring single vpath,\
+ as transmit ans receive \
+ steering is disabled",
+ VXGE_DRIVER_NAME);
+ }
+
+ 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);
+ rx_steering_type = 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 (!bVAL1(vpath_mask, i)) {
+ 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 (with or without napi),
+ 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 {
+ if (napi) {
+ /* For msi-x with new 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;
+
+ /* For msi-x with old napi, Set CI ON for
+ only one vpath (single free running timer) */
+
+ }
+ }
+
+ 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 = ring_blocks;
+ device_config->vp_config[i].ring.buffer_mode =
+ VXGE_HW_RING_RXD_BUFFER_MODE_1;
+
+ 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.sw_lro_sess:%d",
+ device_config->vp_config[i].ring.sw_lro_sessions);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.sw_lro_sg_sz:%d",
+ device_config->vp_config[i].ring.sw_lro_sg_size);
+ vxge_debug_ll_config(VXGE_TRACE, "ring.swlro_frm_ln:%d",
+ device_config->vp_config[i].ring.sw_lro_frm_len);
+ 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, "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_min =
+ VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE;
+
+ device_config->dma_blockpool_max =
+ VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
+
+ device_config->dma_blockpool_incr =
+ VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE;
+
+ /* Statistics Setting. */
+
+ device_config->stats_read_method = VXGE_HW_STATS_READ_METHOD_PIO;
+
+ 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;
+ }
+ device_config->lro_enable = lro;
+ /* 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_min : %d",
+ device_config->dma_blockpool_min);
+ vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
+ device_config->dma_blockpool_max);
+ vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_incr : %d",
+ device_config->dma_blockpool_incr);
+ vxge_debug_ll_config(VXGE_TRACE, "stats_read_method : %d",
+ device_config->stats_read_method);
+ vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
+ device_config->intr_mode);
+ vxge_debug_ll_config(VXGE_TRACE, "lro_enable : %d",
+ device_config->lro_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.lro_enable) {
+ vxge_debug_init(VXGE_ERR,
+ "%s: Large receive offload enabled",
+ vdev->ndev->name);
+ } else
+ vxge_debug_init(VXGE_TRACE,
+ "%s: Large receive offload disabled",
+ vdev->ndev->name);
+
+ if (vdev->config.napi_enable) {
+ vxge_debug_init(VXGE_TRACE,
+ "%s: NAPI enabled", vdev->ndev->name);
+ } else
+ vxge_debug_init(VXGE_TRACE,
+ "%s: NAPI 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
+
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
+ if (!bVAL1(vpath_mask, i))
+ continue;
+ vxge_debug_ll_config(VXGE_TRACE,
+ "%s: MTU size - %d", vdev->ndev->name,
+ ((struct __hw_device *)(vdev->devh))->
+ config.vp_config[i].mtu);
+ vxge_debug_init(VXGE_TRACE,
+ "%s: VLAN tag stripping %s", vdev->ndev->name,
+ ((struct __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 __hw_device *)(vdev->devh))->
+ config.vp_config[i].ring.ring_blocks);
+ vxge_debug_init(VXGE_TRACE,
+ "%s: Fifo blocks : %d", vdev->ndev->name,
+ ((struct __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 __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 net_device *netdev = pci_get_drvdata(pdev);
+
+ 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 net_device *netdev = pci_get_drvdata(pdev);
+ 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 net_device *netdev = pci_get_drvdata(pdev);
+
+ 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
+ *
+ * Detect and initialize new PCI device. Linux will call us when new
+ * device gets hot-plugged, discovered or whatever reason.
+ */
+static int __devinit
+vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
+{
+ struct __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.cksum_offload_enable = 1;
+
+ ll_config.tx_steering_type = tx_steering_type;
+
+ ll_config.intr_type = intr_type;
+ ll_config.tso_enable = VXGE_TSO_ENABLE;
+
+ ll_config.napi_weight = NEW_NAPI_WEIGHT;
+
+ /* 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 = (caddr_t)ioremap(pci_resource_start(pdev, 0),
+ pci_resource_len(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,
+ "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 = (caddr_t) ioremap(pci_resource_start(pdev, 2),
+ pci_resource_len(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,
+ "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 mac addr and mask failed ",
+ 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);
+ if (!no_of_vpath) {
+ vxge_debug_ll_config(VXGE_ERR,
+ "%s: no more vpath", VXGE_DRIVER_NAME);
+
+ ret = 0;
+
+ goto _exit5;
+ }
+
+ if ((no_of_vpath == 1) && (napi) && (lro))
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
+ device_config->vp_config[i].aggr_ack =
+ VXGE_HW_VPATH_AGGR_ACK_ENABLE;
+
+ else if ((intr_type == MSI_X) && (napi) && (lro))
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
+ device_config->vp_config[i].aggr_ack =
+ VXGE_HW_VPATH_AGGR_ACK_ENABLE;
+
+ if (intr_type == MSI_X) {
+ /* If NAPI is not enabled, set indicate max to high value */
+ if (!napi) {
+ for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
+ device_config->vp_config[i].
+ ring.indicate_max_pkts =
+ VXGE_HW_MAX_RING_INDICATE_MAX_PKTS;
+ } else {
+ /* 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;
+ attr.uld_callbacks.sched_timer = NULL;
+
+ status = vxge_hw_device_initialize((struct __hw_device **)
+ &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 __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.napi_enable = napi;
+
+ ll_config.lro_enable = lro;
+ ll_config.lro_max_bytes = lro_max_bytes;
+ ll_config.fifo_indicate_max_pkts = fifo_indicate_max_pkts;
+ ll_config.intr_type = intr_type;
+ ll_config.addr_learn_en = addr_learn_en;
+
+ ll_config.rth_steering = (rx_steering_type == RTH_STEERING) ? 1 : 0;
+ 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.rth_jhash_golden_ratio = RTH_JHASH_GOLDEN_RATIO;
+ 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 */
+ vxge_hw_device_private_set(hldev, 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 (!bVAL1(vpath_mask, i))
+ 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 */
+ vxge_list_init(&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;
+
+ vdev->serial_num = (char *) vxge_hw_device_serial_number_get(hldev);
+ *(vdev->serial_num + (VXGE_HW_VPD_LENGTH - 1)) = '\0';
+ if (strcmp(vdev->serial_num, "not supported") != 0)
+ strcpy(g_serial_num, vdev->serial_num);
+
+ vdev->product_name = (char *) vxge_hw_device_product_name_get(hldev);
+ *(vdev->product_name + (VXGE_HW_VPD_LENGTH - 1)) = '\0';
+ if (strcmp(vdev->product_name, "not supported") != 0)
+ strcpy(g_product_name, vdev->product_name);
+
+ vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
+ vdev->ndev->name, g_serial_num);
+
+ vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
+ vdev->ndev->name, g_product_name);
+
+ 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 */
+ vxge_list_insert(&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;
+}
+
+static void __devexit
+vxge_remove(struct pci_dev *pdev)
+{
+ struct __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
+
+ vxge_assert(pdev);
+
+ hldev = (struct __hw_device *) pci_get_drvdata(pdev);
+
+ if (hldev == NULL)
+ return;
+
+ vxge_assert(hldev);
+
+ dev = vxge_hw_device_private_get(hldev);
+ vxge_assert(dev);
+
+ vdev = netdev_priv(dev);
+ vxge_assert(vdev);
+
+#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__);
+}
+
+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;
+}
+
+void __exit
+vxge_closer(void)
+{
+ pci_unregister_driver(&vxge_driver);
+}
+module_init(vxge_starter);
+module_exit(vxge_closer);
diff -urpN patch_7/drivers/net/vxge/vxge-main.h patch_8/drivers/net/vxge/vxge-main.h
--- patch_7/drivers/net/vxge/vxge-main.h 1969-12-31 16:00:00.000000000 -0800
+++ patch_8/drivers/net/vxge/vxge-main.h 2009-03-13 00:14:32.000000000 -0700
@@ -0,0 +1,623 @@
+/******************************************************************************
+ * 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/inet_lro.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 RTH_JHASH_GOLDEN_RATIO 0x01020304
+
+#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 32
+#define VXGE_ISR_POLLING_CNT 8
+#define VXGE_TSO_ENABLE 1
+#define VXGE_TSO_DISABLE 0
+#define VXGE_ENABLE_NAPI 1
+#define VXGE_DISABLE_NAPI 0
+#define VXGE_LRO_MAX_BYTES 0x4000
+#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_NETQ_DISABLE 0
+#define VXGE_NETQ_ENABLE 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
+
+/*
+ * default the size of buffers allocated for dumping stats/buffers
+ * These are allocated via vmalloc
+ */
+#define VXGE_MRPCIM_STATS_BUFSIZE 65000
+#define VXGE_DEVCONF_BUFSIZE (32 * 2048)
+#define VXGE_REG_DUMP_BUFSIZE 65000
+
+/* Milli secs timer period */
+#define VXGE_TIMER_DELAY 10000
+
+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[6];
+ unsigned char macmask[6];
+ unsigned int vpath_no;
+ enum vxge_mac_addr_state state;
+};
+
+struct macList {
+ unsigned int vpath_no;
+ unsigned int macaddr_no;
+ struct macInfo mac_info[128];
+};
+
+struct vxge_config {
+ int cksum_offload_enable;
+ int tso_enable;
+ int napi_enable;
+ int tx_pause_enable;
+ int rx_pause_enable;
+
+#define NEW_NAPI_WEIGHT 64
+ int napi_weight;
+ int aggr_ack;
+ int lro_enable;
+#define MIN_LRO_PACKETS 1
+#define MAX_LRO_PACKETS 10
+ int lro_max_aggr_per_sess;
+ int lro_max_bytes;
+ 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;
+
+ /* Errors */
+
+ /* 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 vxge_list 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 __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 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 __hw_ring *handle;
+ /* The vpath id maintained in the driver -
+ * 0 to 'maximum_vpaths_in_function - 1'
+ */
+ int driver_id;
+
+ /*
+ * A 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 lro_enable;
+ int aggr_ack;
+
+ struct napi_struct napi;
+
+ int napi_enable;
+
+#define VXGE_MAX_MAC_ADDR_COUNT 30
+
+ int vlan_tag_strip;
+ struct vlan_group *vlgrp;
+ int rx_vector_no;
+
+#define MAX_LRO_SESSIONS 32
+
+ struct net_lro_mgr lro_mgr;
+ struct net_lro_desc lro_desc[MAX_LRO_SESSIONS];
+
+ /* Rx stats */
+ struct vxge_ring_stats stats;
+
+} ____cacheline_aligned;
+
+struct vxge_vpath {
+
+ struct vxge_fifo fifo;
+ struct vxge_ring ring;
+
+ struct __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 vxge_list mac_addr_list;
+
+ u32 level_err;
+ u32 level_trace;
+};
+#define VXGE_COPY_DEBUG_INFO_TO_LL(vdev, err, trace) { \
+ int i; \
+ 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 __hw_device *devh;
+ struct vlan_group *vlgrp;
+ int vlan_tag_strip;
+ struct vxge_config config;
+ volatile unsigned long state;
+ unsigned int tx_per_list_intr_cnt;
+
+ /* ID timer used to blink the NICs LED to ID it. */
+ struct timer_list id_timer;
+
+ /* Indicates which vpath to reset */
+ volatile unsigned long vp_reset;
+
+ /* Timer used for polling vpath resets */
+ struct timer_list vp_reset_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 __hw_vpath_handle *vp_handles[VXGE_HW_MAX_VIRTUAL_PATHS];
+ u8 *bar0;
+ u8 *bar1;
+ struct vxge_sw_stats stats;
+ int mtu;
+ /* Below variables are used for vpath selection to transmit a packet */
+ u8 vpath_mapping[VXGE_HW_MAX_VIRTUAL_PATHS];
+ u8 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS];
+ u64 vpaths_deployed;
+
+ u32 intr_cnt;
+ u32 level_err;
+ u32 level_trace;
+ char *serial_num;
+ char *product_name;
+ 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)
+
+static inline void vxge_os_timeout(int milliseconds)
+{
+ int delay;
+ delay = (HZ * milliseconds / 1000);
+ delay = (delay) ? delay : 1;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(delay);
+}
+
+#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 __hw_device *devh,
+ struct vxge_config *config,
+ int high_dma, int no_of_vpath,
+ struct vxgedev **vdev);
+
+void vxge_device_unregister(struct __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 __hw_device *devh, void *userdata);
+
+void vxge_callback_link_down(struct __hw_device *devh, void *userdata);
+
+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 __hw_ring *ringh, void *dtr,
+ u8 t_code, void *userdata);
+
+enum vxge_hw_status
+vxge_xmit_compl(struct __hw_fifo *fifo_hw, void *dtr,
+ void *dtr_priv, 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 dma_alloc_task_cb(unsigned long *data);
+
+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);
+
+extern int vxge_ethtool(struct net_device *dev, struct ifreq *rq);
+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 __hw_device *)vdev->devh, \
+ level, mask);\
+ VXGE_COPY_DEBUG_INFO_TO_LL(vdev, \
+ vxge_hw_device_error_level_get((struct __hw_device *) \
+ vdev->devh), \
+ vxge_hw_device_trace_level_get((struct __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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