![Wu Fengguang](/assets/img/avatar_default.png)
The original KERN_CRIT will mess up terminals. CC: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
4554 lines
120 KiB
C
4554 lines
120 KiB
C
/******************************************************************************
|
|
* This software may be used and distributed according to the terms of
|
|
* the GNU General Public License (GPL), incorporated herein by reference.
|
|
* Drivers based on or derived from this code fall under the GPL and must
|
|
* retain the authorship, copyright and license notice. This file is not
|
|
* a complete program and may only be used when the entire operating
|
|
* system is licensed under the GPL.
|
|
* See the file COPYING in this distribution for more information.
|
|
*
|
|
* vxge-main.c: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
|
|
* Virtualized Server Adapter.
|
|
* Copyright(c) 2002-2009 Neterion Inc.
|
|
*
|
|
* The module loadable parameters that are supported by the driver and a brief
|
|
* explanation of all the variables:
|
|
* vlan_tag_strip:
|
|
* Strip VLAN Tag enable/disable. Instructs the device to remove
|
|
* the VLAN tag from all received tagged frames that are not
|
|
* replicated at the internal L2 switch.
|
|
* 0 - Do not strip the VLAN tag.
|
|
* 1 - Strip the VLAN tag.
|
|
*
|
|
* addr_learn_en:
|
|
* Enable learning the mac address of the guest OS interface in
|
|
* a virtualization environment.
|
|
* 0 - DISABLE
|
|
* 1 - ENABLE
|
|
*
|
|
* max_config_port:
|
|
* Maximum number of port to be supported.
|
|
* MIN -1 and MAX - 2
|
|
*
|
|
* max_config_vpath:
|
|
* This configures the maximum no of VPATH configures for each
|
|
* device function.
|
|
* MIN - 1 and MAX - 17
|
|
*
|
|
* max_config_dev:
|
|
* This configures maximum no of Device function to be enabled.
|
|
* MIN - 1 and MAX - 17
|
|
*
|
|
******************************************************************************/
|
|
|
|
#include <linux/if_vlan.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/tcp.h>
|
|
#include <net/ip.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include "vxge-main.h"
|
|
#include "vxge-reg.h"
|
|
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
MODULE_DESCRIPTION("Neterion's X3100 Series 10GbE PCIe I/O"
|
|
"Virtualized Server Adapter");
|
|
|
|
static DEFINE_PCI_DEVICE_TABLE(vxge_id_table) = {
|
|
{PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_WIN, PCI_ANY_ID,
|
|
PCI_ANY_ID},
|
|
{PCI_VENDOR_ID_S2IO, PCI_DEVICE_ID_TITAN_UNI, PCI_ANY_ID,
|
|
PCI_ANY_ID},
|
|
{0}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, vxge_id_table);
|
|
|
|
VXGE_MODULE_PARAM_INT(vlan_tag_strip, VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE);
|
|
VXGE_MODULE_PARAM_INT(addr_learn_en, VXGE_HW_MAC_ADDR_LEARN_DEFAULT);
|
|
VXGE_MODULE_PARAM_INT(max_config_port, VXGE_MAX_CONFIG_PORT);
|
|
VXGE_MODULE_PARAM_INT(max_config_vpath, VXGE_USE_DEFAULT);
|
|
VXGE_MODULE_PARAM_INT(max_mac_vpath, VXGE_MAX_MAC_ADDR_COUNT);
|
|
VXGE_MODULE_PARAM_INT(max_config_dev, VXGE_MAX_CONFIG_DEV);
|
|
|
|
static u16 vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS] =
|
|
{0, 1, 3, 3, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 31};
|
|
static unsigned int bw_percentage[VXGE_HW_MAX_VIRTUAL_PATHS] =
|
|
{[0 ...(VXGE_HW_MAX_VIRTUAL_PATHS - 1)] = 0xFF};
|
|
module_param_array(bw_percentage, uint, NULL, 0);
|
|
|
|
static struct vxge_drv_config *driver_config;
|
|
|
|
static inline int is_vxge_card_up(struct vxgedev *vdev)
|
|
{
|
|
return test_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
}
|
|
|
|
static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
|
|
{
|
|
unsigned long flags = 0;
|
|
struct sk_buff **skb_ptr = NULL;
|
|
struct sk_buff **temp;
|
|
#define NR_SKB_COMPLETED 128
|
|
struct sk_buff *completed[NR_SKB_COMPLETED];
|
|
int more;
|
|
|
|
do {
|
|
more = 0;
|
|
skb_ptr = completed;
|
|
|
|
if (spin_trylock_irqsave(&fifo->tx_lock, flags)) {
|
|
vxge_hw_vpath_poll_tx(fifo->handle, &skb_ptr,
|
|
NR_SKB_COMPLETED, &more);
|
|
spin_unlock_irqrestore(&fifo->tx_lock, flags);
|
|
}
|
|
/* free SKBs */
|
|
for (temp = completed; temp != skb_ptr; temp++)
|
|
dev_kfree_skb_irq(*temp);
|
|
} while (more) ;
|
|
}
|
|
|
|
static inline void VXGE_COMPLETE_ALL_TX(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
|
|
/* Complete all transmits */
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
VXGE_COMPLETE_VPATH_TX(&vdev->vpaths[i].fifo);
|
|
}
|
|
|
|
static inline void VXGE_COMPLETE_ALL_RX(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
struct vxge_ring *ring;
|
|
|
|
/* Complete all receives*/
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
ring = &vdev->vpaths[i].ring;
|
|
vxge_hw_vpath_poll_rx(ring->handle);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* MultiQ manipulation helper functions
|
|
*/
|
|
void vxge_stop_all_tx_queue(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
struct net_device *dev = vdev->ndev;
|
|
|
|
if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_STOP;
|
|
}
|
|
netif_tx_stop_all_queues(dev);
|
|
}
|
|
|
|
void vxge_stop_tx_queue(struct vxge_fifo *fifo)
|
|
{
|
|
struct net_device *dev = fifo->ndev;
|
|
|
|
struct netdev_queue *txq = NULL;
|
|
if (fifo->tx_steering_type == TX_MULTIQ_STEERING)
|
|
txq = netdev_get_tx_queue(dev, fifo->driver_id);
|
|
else {
|
|
txq = netdev_get_tx_queue(dev, 0);
|
|
fifo->queue_state = VPATH_QUEUE_STOP;
|
|
}
|
|
|
|
netif_tx_stop_queue(txq);
|
|
}
|
|
|
|
void vxge_start_all_tx_queue(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
struct net_device *dev = vdev->ndev;
|
|
|
|
if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
|
|
}
|
|
netif_tx_start_all_queues(dev);
|
|
}
|
|
|
|
static void vxge_wake_all_tx_queue(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
struct net_device *dev = vdev->ndev;
|
|
|
|
if (vdev->config.tx_steering_type != TX_MULTIQ_STEERING) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vdev->vpaths[i].fifo.queue_state = VPATH_QUEUE_START;
|
|
}
|
|
netif_tx_wake_all_queues(dev);
|
|
}
|
|
|
|
void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb)
|
|
{
|
|
struct net_device *dev = fifo->ndev;
|
|
|
|
int vpath_no = fifo->driver_id;
|
|
struct netdev_queue *txq = NULL;
|
|
if (fifo->tx_steering_type == TX_MULTIQ_STEERING) {
|
|
txq = netdev_get_tx_queue(dev, vpath_no);
|
|
if (netif_tx_queue_stopped(txq))
|
|
netif_tx_wake_queue(txq);
|
|
} else {
|
|
txq = netdev_get_tx_queue(dev, 0);
|
|
if (fifo->queue_state == VPATH_QUEUE_STOP)
|
|
if (netif_tx_queue_stopped(txq)) {
|
|
fifo->queue_state = VPATH_QUEUE_START;
|
|
netif_tx_wake_queue(txq);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* vxge_callback_link_up
|
|
*
|
|
* This function is called during interrupt context to notify link up state
|
|
* change.
|
|
*/
|
|
void
|
|
vxge_callback_link_up(struct __vxge_hw_device *hldev)
|
|
{
|
|
struct net_device *dev = hldev->ndev;
|
|
struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
vdev->ndev->name, __func__, __LINE__);
|
|
printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
|
|
vdev->stats.link_up++;
|
|
|
|
netif_carrier_on(vdev->ndev);
|
|
vxge_wake_all_tx_queue(vdev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
|
|
}
|
|
|
|
/*
|
|
* vxge_callback_link_down
|
|
*
|
|
* This function is called during interrupt context to notify link down state
|
|
* change.
|
|
*/
|
|
void
|
|
vxge_callback_link_down(struct __vxge_hw_device *hldev)
|
|
{
|
|
struct net_device *dev = hldev->ndev;
|
|
struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
|
|
printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
|
|
|
|
vdev->stats.link_down++;
|
|
netif_carrier_off(vdev->ndev);
|
|
vxge_stop_all_tx_queue(vdev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", vdev->ndev->name, __func__, __LINE__);
|
|
}
|
|
|
|
/*
|
|
* vxge_rx_alloc
|
|
*
|
|
* Allocate SKB.
|
|
*/
|
|
static struct sk_buff*
|
|
vxge_rx_alloc(void *dtrh, struct vxge_ring *ring, const int skb_size)
|
|
{
|
|
struct net_device *dev;
|
|
struct sk_buff *skb;
|
|
struct vxge_rx_priv *rx_priv;
|
|
|
|
dev = ring->ndev;
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
|
|
rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
|
|
|
|
/* try to allocate skb first. this one may fail */
|
|
skb = netdev_alloc_skb(dev, skb_size +
|
|
VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
|
|
if (skb == NULL) {
|
|
vxge_debug_mem(VXGE_ERR,
|
|
"%s: out of memory to allocate SKB", dev->name);
|
|
ring->stats.skb_alloc_fail++;
|
|
return NULL;
|
|
}
|
|
|
|
vxge_debug_mem(VXGE_TRACE,
|
|
"%s: %s:%d Skb : 0x%p", ring->ndev->name,
|
|
__func__, __LINE__, skb);
|
|
|
|
skb_reserve(skb, VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
|
|
|
|
rx_priv->skb = skb;
|
|
rx_priv->skb_data = NULL;
|
|
rx_priv->data_size = skb_size;
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
|
|
|
|
return skb;
|
|
}
|
|
|
|
/*
|
|
* vxge_rx_map
|
|
*/
|
|
static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
|
|
{
|
|
struct vxge_rx_priv *rx_priv;
|
|
dma_addr_t dma_addr;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
|
|
|
|
rx_priv->skb_data = rx_priv->skb->data;
|
|
dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
|
|
rx_priv->data_size, PCI_DMA_FROMDEVICE);
|
|
|
|
if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) {
|
|
ring->stats.pci_map_fail++;
|
|
return -EIO;
|
|
}
|
|
vxge_debug_mem(VXGE_TRACE,
|
|
"%s: %s:%d 1 buffer mode dma_addr = 0x%llx",
|
|
ring->ndev->name, __func__, __LINE__,
|
|
(unsigned long long)dma_addr);
|
|
vxge_hw_ring_rxd_1b_set(dtrh, dma_addr, rx_priv->data_size);
|
|
|
|
rx_priv->data_dma = dma_addr;
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* vxge_rx_initial_replenish
|
|
* Allocation of RxD as an initial replenish procedure.
|
|
*/
|
|
static enum vxge_hw_status
|
|
vxge_rx_initial_replenish(void *dtrh, void *userdata)
|
|
{
|
|
struct vxge_ring *ring = (struct vxge_ring *)userdata;
|
|
struct vxge_rx_priv *rx_priv;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
if (vxge_rx_alloc(dtrh, ring,
|
|
VXGE_LL_MAX_FRAME_SIZE(ring->ndev)) == NULL)
|
|
return VXGE_HW_FAIL;
|
|
|
|
if (vxge_rx_map(dtrh, ring)) {
|
|
rx_priv = vxge_hw_ring_rxd_private_get(dtrh);
|
|
dev_kfree_skb(rx_priv->skb);
|
|
|
|
return VXGE_HW_FAIL;
|
|
}
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
|
|
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
static inline void
|
|
vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
|
|
int pkt_length, struct vxge_hw_ring_rxd_info *ext_info)
|
|
{
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
skb_record_rx_queue(skb, ring->driver_id);
|
|
skb->protocol = eth_type_trans(skb, ring->ndev);
|
|
|
|
ring->stats.rx_frms++;
|
|
ring->stats.rx_bytes += pkt_length;
|
|
|
|
if (skb->pkt_type == PACKET_MULTICAST)
|
|
ring->stats.rx_mcast++;
|
|
|
|
vxge_debug_rx(VXGE_TRACE,
|
|
"%s: %s:%d skb protocol = %d",
|
|
ring->ndev->name, __func__, __LINE__, skb->protocol);
|
|
|
|
if (ring->gro_enable) {
|
|
if (ring->vlgrp && ext_info->vlan &&
|
|
(ring->vlan_tag_strip ==
|
|
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
|
|
vlan_gro_receive(ring->napi_p, ring->vlgrp,
|
|
ext_info->vlan, skb);
|
|
else
|
|
napi_gro_receive(ring->napi_p, skb);
|
|
} else {
|
|
if (ring->vlgrp && vlan &&
|
|
(ring->vlan_tag_strip ==
|
|
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
|
|
vlan_hwaccel_receive_skb(skb, ring->vlgrp, vlan);
|
|
else
|
|
netif_receive_skb(skb);
|
|
}
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", ring->ndev->name, __func__, __LINE__);
|
|
}
|
|
|
|
static inline void vxge_re_pre_post(void *dtr, struct vxge_ring *ring,
|
|
struct vxge_rx_priv *rx_priv)
|
|
{
|
|
pci_dma_sync_single_for_device(ring->pdev,
|
|
rx_priv->data_dma, rx_priv->data_size, PCI_DMA_FROMDEVICE);
|
|
|
|
vxge_hw_ring_rxd_1b_set(dtr, rx_priv->data_dma, rx_priv->data_size);
|
|
vxge_hw_ring_rxd_pre_post(ring->handle, dtr);
|
|
}
|
|
|
|
static inline void vxge_post(int *dtr_cnt, void **first_dtr,
|
|
void *post_dtr, struct __vxge_hw_ring *ringh)
|
|
{
|
|
int dtr_count = *dtr_cnt;
|
|
if ((*dtr_cnt % VXGE_HW_RXSYNC_FREQ_CNT) == 0) {
|
|
if (*first_dtr)
|
|
vxge_hw_ring_rxd_post_post_wmb(ringh, *first_dtr);
|
|
*first_dtr = post_dtr;
|
|
} else
|
|
vxge_hw_ring_rxd_post_post(ringh, post_dtr);
|
|
dtr_count++;
|
|
*dtr_cnt = dtr_count;
|
|
}
|
|
|
|
/*
|
|
* vxge_rx_1b_compl
|
|
*
|
|
* If the interrupt is because of a received frame or if the receive ring
|
|
* contains fresh as yet un-processed frames, this function is called.
|
|
*/
|
|
enum vxge_hw_status
|
|
vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
|
|
u8 t_code, void *userdata)
|
|
{
|
|
struct vxge_ring *ring = (struct vxge_ring *)userdata;
|
|
struct net_device *dev = ring->ndev;
|
|
unsigned int dma_sizes;
|
|
void *first_dtr = NULL;
|
|
int dtr_cnt = 0;
|
|
int data_size;
|
|
dma_addr_t data_dma;
|
|
int pkt_length;
|
|
struct sk_buff *skb;
|
|
struct vxge_rx_priv *rx_priv;
|
|
struct vxge_hw_ring_rxd_info ext_info;
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
ring->pkts_processed = 0;
|
|
|
|
vxge_hw_ring_replenish(ringh);
|
|
|
|
do {
|
|
prefetch((char *)dtr + L1_CACHE_BYTES);
|
|
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;
|
|
prefetch(rx_priv->skb_data);
|
|
|
|
vxge_debug_rx(VXGE_TRACE,
|
|
"%s: %s:%d skb = 0x%p",
|
|
ring->ndev->name, __func__, __LINE__, skb);
|
|
|
|
vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
|
|
pkt_length = dma_sizes;
|
|
|
|
pkt_length -= ETH_FCS_LEN;
|
|
|
|
vxge_debug_rx(VXGE_TRACE,
|
|
"%s: %s:%d Packet Length = %d",
|
|
ring->ndev->name, __func__, __LINE__, pkt_length);
|
|
|
|
vxge_hw_ring_rxd_1b_info_get(ringh, dtr, &ext_info);
|
|
|
|
/* check skb validity */
|
|
vxge_assert(skb);
|
|
|
|
prefetch((char *)skb + L1_CACHE_BYTES);
|
|
if (unlikely(t_code)) {
|
|
|
|
if (vxge_hw_ring_handle_tcode(ringh, dtr, t_code) !=
|
|
VXGE_HW_OK) {
|
|
|
|
ring->stats.rx_errors++;
|
|
vxge_debug_rx(VXGE_TRACE,
|
|
"%s: %s :%d Rx T_code is %d",
|
|
ring->ndev->name, __func__,
|
|
__LINE__, t_code);
|
|
|
|
/* If the t_code is not supported and if the
|
|
* t_code is other than 0x5 (unparseable packet
|
|
* such as unknown UPV6 header), Drop it !!!
|
|
*/
|
|
vxge_re_pre_post(dtr, ring, rx_priv);
|
|
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
|
|
ring->stats.rx_dropped++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (pkt_length > VXGE_LL_RX_COPY_THRESHOLD) {
|
|
|
|
if (vxge_rx_alloc(dtr, ring, data_size) != NULL) {
|
|
|
|
if (!vxge_rx_map(dtr, ring)) {
|
|
skb_put(skb, pkt_length);
|
|
|
|
pci_unmap_single(ring->pdev, data_dma,
|
|
data_size, PCI_DMA_FROMDEVICE);
|
|
|
|
vxge_hw_ring_rxd_pre_post(ringh, dtr);
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr,
|
|
ringh);
|
|
} else {
|
|
dev_kfree_skb(rx_priv->skb);
|
|
rx_priv->skb = skb;
|
|
rx_priv->data_size = data_size;
|
|
vxge_re_pre_post(dtr, ring, rx_priv);
|
|
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr,
|
|
ringh);
|
|
ring->stats.rx_dropped++;
|
|
break;
|
|
}
|
|
} else {
|
|
vxge_re_pre_post(dtr, ring, rx_priv);
|
|
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
|
|
ring->stats.rx_dropped++;
|
|
break;
|
|
}
|
|
} else {
|
|
struct sk_buff *skb_up;
|
|
|
|
skb_up = netdev_alloc_skb(dev, pkt_length +
|
|
VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
|
|
if (skb_up != NULL) {
|
|
skb_reserve(skb_up,
|
|
VXGE_HW_HEADER_ETHERNET_II_802_3_ALIGN);
|
|
|
|
pci_dma_sync_single_for_cpu(ring->pdev,
|
|
data_dma, data_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
vxge_debug_mem(VXGE_TRACE,
|
|
"%s: %s:%d skb_up = %p",
|
|
ring->ndev->name, __func__,
|
|
__LINE__, skb);
|
|
memcpy(skb_up->data, skb->data, pkt_length);
|
|
|
|
vxge_re_pre_post(dtr, ring, rx_priv);
|
|
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr,
|
|
ringh);
|
|
/* will netif_rx small SKB instead */
|
|
skb = skb_up;
|
|
skb_put(skb, pkt_length);
|
|
} else {
|
|
vxge_re_pre_post(dtr, ring, rx_priv);
|
|
|
|
vxge_post(&dtr_cnt, &first_dtr, dtr, ringh);
|
|
vxge_debug_rx(VXGE_ERR,
|
|
"%s: vxge_rx_1b_compl: out of "
|
|
"memory", dev->name);
|
|
ring->stats.skb_alloc_fail++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((ext_info.proto & VXGE_HW_FRAME_PROTO_TCP_OR_UDP) &&
|
|
!(ext_info.proto & VXGE_HW_FRAME_PROTO_IP_FRAG) &&
|
|
ring->rx_csum && /* Offload Rx side CSUM */
|
|
ext_info.l3_cksum == VXGE_HW_L3_CKSUM_OK &&
|
|
ext_info.l4_cksum == VXGE_HW_L4_CKSUM_OK)
|
|
skb->ip_summed = CHECKSUM_UNNECESSARY;
|
|
else
|
|
skb->ip_summed = CHECKSUM_NONE;
|
|
|
|
vxge_rx_complete(ring, skb, ext_info.vlan,
|
|
pkt_length, &ext_info);
|
|
|
|
ring->budget--;
|
|
ring->pkts_processed++;
|
|
if (!ring->budget)
|
|
break;
|
|
|
|
} while (vxge_hw_ring_rxd_next_completed(ringh, &dtr,
|
|
&t_code) == VXGE_HW_OK);
|
|
|
|
if (first_dtr)
|
|
vxge_hw_ring_rxd_post_post_wmb(ringh, first_dtr);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...",
|
|
__func__, __LINE__);
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
/*
|
|
* vxge_xmit_compl
|
|
*
|
|
* If an interrupt was raised to indicate DMA complete of the Tx packet,
|
|
* this function is called. It identifies the last TxD whose buffer was
|
|
* freed and frees all skbs whose data have already DMA'ed into the NICs
|
|
* internal memory.
|
|
*/
|
|
enum vxge_hw_status
|
|
vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
|
|
enum vxge_hw_fifo_tcode t_code, void *userdata,
|
|
struct sk_buff ***skb_ptr, int nr_skb, int *more)
|
|
{
|
|
struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
|
|
struct sk_buff *skb, **done_skb = *skb_ptr;
|
|
int pkt_cnt = 0;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Entered....", __func__, __LINE__);
|
|
|
|
do {
|
|
int frg_cnt;
|
|
skb_frag_t *frag;
|
|
int i = 0, j;
|
|
struct vxge_tx_priv *txd_priv =
|
|
vxge_hw_fifo_txdl_private_get(dtr);
|
|
|
|
skb = txd_priv->skb;
|
|
frg_cnt = skb_shinfo(skb)->nr_frags;
|
|
frag = &skb_shinfo(skb)->frags[0];
|
|
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d fifo_hw = %p dtr = %p "
|
|
"tcode = 0x%x", fifo->ndev->name, __func__,
|
|
__LINE__, fifo_hw, dtr, t_code);
|
|
/* check skb validity */
|
|
vxge_assert(skb);
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d skb = %p itxd_priv = %p frg_cnt = %d",
|
|
fifo->ndev->name, __func__, __LINE__,
|
|
skb, txd_priv, frg_cnt);
|
|
if (unlikely(t_code)) {
|
|
fifo->stats.tx_errors++;
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: tx: dtr %p completed due to "
|
|
"error t_code %01x", fifo->ndev->name,
|
|
dtr, t_code);
|
|
vxge_hw_fifo_handle_tcode(fifo_hw, dtr, t_code);
|
|
}
|
|
|
|
/* for unfragmented skb */
|
|
pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
|
|
skb_headlen(skb), PCI_DMA_TODEVICE);
|
|
|
|
for (j = 0; j < frg_cnt; j++) {
|
|
pci_unmap_page(fifo->pdev,
|
|
txd_priv->dma_buffers[i++],
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
frag += 1;
|
|
}
|
|
|
|
vxge_hw_fifo_txdl_free(fifo_hw, dtr);
|
|
|
|
/* Updating the statistics block */
|
|
fifo->stats.tx_frms++;
|
|
fifo->stats.tx_bytes += skb->len;
|
|
|
|
*done_skb++ = skb;
|
|
|
|
if (--nr_skb <= 0) {
|
|
*more = 1;
|
|
break;
|
|
}
|
|
|
|
pkt_cnt++;
|
|
if (pkt_cnt > fifo->indicate_max_pkts)
|
|
break;
|
|
|
|
} while (vxge_hw_fifo_txdl_next_completed(fifo_hw,
|
|
&dtr, &t_code) == VXGE_HW_OK);
|
|
|
|
*skb_ptr = done_skb;
|
|
vxge_wake_tx_queue(fifo, skb);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...",
|
|
fifo->ndev->name, __func__, __LINE__);
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
/* select a vpath to transmit the packet */
|
|
static u32 vxge_get_vpath_no(struct vxgedev *vdev, struct sk_buff *skb,
|
|
int *do_lock)
|
|
{
|
|
u16 queue_len, counter = 0;
|
|
if (skb->protocol == htons(ETH_P_IP)) {
|
|
struct iphdr *ip;
|
|
struct tcphdr *th;
|
|
|
|
ip = ip_hdr(skb);
|
|
|
|
if ((ip->frag_off & htons(IP_OFFSET|IP_MF)) == 0) {
|
|
th = (struct tcphdr *)(((unsigned char *)ip) +
|
|
ip->ihl*4);
|
|
|
|
queue_len = vdev->no_of_vpath;
|
|
counter = (ntohs(th->source) +
|
|
ntohs(th->dest)) &
|
|
vdev->vpath_selector[queue_len - 1];
|
|
if (counter >= queue_len)
|
|
counter = queue_len - 1;
|
|
|
|
if (ip->protocol == IPPROTO_UDP) {
|
|
#ifdef NETIF_F_LLTX
|
|
*do_lock = 0;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
return counter;
|
|
}
|
|
|
|
static enum vxge_hw_status vxge_search_mac_addr_in_list(
|
|
struct vxge_vpath *vpath, u64 del_mac)
|
|
{
|
|
struct list_head *entry, *next;
|
|
list_for_each_safe(entry, next, &vpath->mac_addr_list) {
|
|
if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac)
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static int vxge_learn_mac(struct vxgedev *vdev, u8 *mac_header)
|
|
{
|
|
struct macInfo mac_info;
|
|
u8 *mac_address = NULL;
|
|
u64 mac_addr = 0, vpath_vector = 0;
|
|
int vpath_idx = 0;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxge_vpath *vpath = NULL;
|
|
struct __vxge_hw_device *hldev;
|
|
|
|
hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
|
|
|
|
mac_address = (u8 *)&mac_addr;
|
|
memcpy(mac_address, mac_header, ETH_ALEN);
|
|
|
|
/* Is this mac address already in the list? */
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
|
|
vpath = &vdev->vpaths[vpath_idx];
|
|
if (vxge_search_mac_addr_in_list(vpath, mac_addr))
|
|
return vpath_idx;
|
|
}
|
|
|
|
memset(&mac_info, 0, sizeof(struct macInfo));
|
|
memcpy(mac_info.macaddr, mac_header, ETH_ALEN);
|
|
|
|
/* Any vpath has room to add mac address to its da table? */
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
|
|
vpath = &vdev->vpaths[vpath_idx];
|
|
if (vpath->mac_addr_cnt < vpath->max_mac_addr_cnt) {
|
|
/* Add this mac address to this vpath */
|
|
mac_info.vpath_no = vpath_idx;
|
|
mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
|
|
status = vxge_add_mac_addr(vdev, &mac_info);
|
|
if (status != VXGE_HW_OK)
|
|
return -EPERM;
|
|
return vpath_idx;
|
|
}
|
|
}
|
|
|
|
mac_info.state = VXGE_LL_MAC_ADDR_IN_LIST;
|
|
vpath_idx = 0;
|
|
mac_info.vpath_no = vpath_idx;
|
|
/* Is the first vpath already selected as catch-basin ? */
|
|
vpath = &vdev->vpaths[vpath_idx];
|
|
if (vpath->mac_addr_cnt > vpath->max_mac_addr_cnt) {
|
|
/* Add this mac address to this vpath */
|
|
if (FALSE == vxge_mac_list_add(vpath, &mac_info))
|
|
return -EPERM;
|
|
return vpath_idx;
|
|
}
|
|
|
|
/* Select first vpath as catch-basin */
|
|
vpath_vector = vxge_mBIT(vpath->device_id);
|
|
status = vxge_hw_mgmt_reg_write(vpath->vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(
|
|
struct vxge_hw_mrpcim_reg,
|
|
rts_mgr_cbasin_cfg),
|
|
vpath_vector);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: Unable to set the vpath-%d in catch-basin mode",
|
|
VXGE_DRIVER_NAME, vpath->device_id);
|
|
return -EPERM;
|
|
}
|
|
|
|
if (FALSE == vxge_mac_list_add(vpath, &mac_info))
|
|
return -EPERM;
|
|
|
|
return vpath_idx;
|
|
}
|
|
|
|
/**
|
|
* vxge_xmit
|
|
* @skb : the socket buffer containing the Tx data.
|
|
* @dev : device pointer.
|
|
*
|
|
* This function is the Tx entry point of the driver. Neterion NIC supports
|
|
* certain protocol assist features on Tx side, namely CSO, S/G, LSO.
|
|
* NOTE: when device cant queue the pkt, just the trans_start variable will
|
|
* not be upadted.
|
|
*/
|
|
static netdev_tx_t
|
|
vxge_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct vxge_fifo *fifo = NULL;
|
|
void *dtr_priv;
|
|
void *dtr = NULL;
|
|
struct vxgedev *vdev = NULL;
|
|
enum vxge_hw_status status;
|
|
int frg_cnt, first_frg_len;
|
|
skb_frag_t *frag;
|
|
int i = 0, j = 0, avail;
|
|
u64 dma_pointer;
|
|
struct vxge_tx_priv *txdl_priv = NULL;
|
|
struct __vxge_hw_fifo *fifo_hw;
|
|
int offload_type;
|
|
unsigned long flags = 0;
|
|
int vpath_no = 0;
|
|
int do_spin_tx_lock = 1;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
dev->name, __func__, __LINE__);
|
|
|
|
/* A buffer with no data will be dropped */
|
|
if (unlikely(skb->len <= 0)) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: Buffer has no data..", dev->name);
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
if (unlikely(!is_vxge_card_up(vdev))) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: vdev not initialized", dev->name);
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
if (vdev->config.addr_learn_en) {
|
|
vpath_no = vxge_learn_mac(vdev, skb->data + ETH_ALEN);
|
|
if (vpath_no == -EPERM) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: Failed to store the mac address",
|
|
dev->name);
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
}
|
|
|
|
if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
|
|
vpath_no = skb_get_queue_mapping(skb);
|
|
else if (vdev->config.tx_steering_type == TX_PORT_STEERING)
|
|
vpath_no = vxge_get_vpath_no(vdev, skb, &do_spin_tx_lock);
|
|
|
|
vxge_debug_tx(VXGE_TRACE, "%s: vpath_no= %d", dev->name, vpath_no);
|
|
|
|
if (vpath_no >= vdev->no_of_vpath)
|
|
vpath_no = 0;
|
|
|
|
fifo = &vdev->vpaths[vpath_no].fifo;
|
|
fifo_hw = fifo->handle;
|
|
|
|
if (do_spin_tx_lock)
|
|
spin_lock_irqsave(&fifo->tx_lock, flags);
|
|
else {
|
|
if (unlikely(!spin_trylock_irqsave(&fifo->tx_lock, flags)))
|
|
return NETDEV_TX_LOCKED;
|
|
}
|
|
|
|
if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING) {
|
|
if (netif_subqueue_stopped(dev, skb)) {
|
|
spin_unlock_irqrestore(&fifo->tx_lock, flags);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
} else if (unlikely(fifo->queue_state == VPATH_QUEUE_STOP)) {
|
|
if (netif_queue_stopped(dev)) {
|
|
spin_unlock_irqrestore(&fifo->tx_lock, flags);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
}
|
|
avail = vxge_hw_fifo_free_txdl_count_get(fifo_hw);
|
|
if (avail == 0) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: No free TXDs available", dev->name);
|
|
fifo->stats.txd_not_free++;
|
|
vxge_stop_tx_queue(fifo);
|
|
goto _exit2;
|
|
}
|
|
|
|
/* Last TXD? Stop tx queue to avoid dropping packets. TX
|
|
* completion will resume the queue.
|
|
*/
|
|
if (avail == 1)
|
|
vxge_stop_tx_queue(fifo);
|
|
|
|
status = vxge_hw_fifo_txdl_reserve(fifo_hw, &dtr, &dtr_priv);
|
|
if (unlikely(status != VXGE_HW_OK)) {
|
|
vxge_debug_tx(VXGE_ERR,
|
|
"%s: Out of descriptors .", dev->name);
|
|
fifo->stats.txd_out_of_desc++;
|
|
vxge_stop_tx_queue(fifo);
|
|
goto _exit2;
|
|
}
|
|
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d fifo_hw = %p dtr = %p dtr_priv = %p",
|
|
dev->name, __func__, __LINE__,
|
|
fifo_hw, dtr, dtr_priv);
|
|
|
|
if (vdev->vlgrp && vlan_tx_tag_present(skb)) {
|
|
u16 vlan_tag = vlan_tx_tag_get(skb);
|
|
vxge_hw_fifo_txdl_vlan_set(dtr, vlan_tag);
|
|
}
|
|
|
|
first_frg_len = skb_headlen(skb);
|
|
|
|
dma_pointer = pci_map_single(fifo->pdev, skb->data, first_frg_len,
|
|
PCI_DMA_TODEVICE);
|
|
|
|
if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer))) {
|
|
vxge_hw_fifo_txdl_free(fifo_hw, dtr);
|
|
vxge_stop_tx_queue(fifo);
|
|
fifo->stats.pci_map_fail++;
|
|
goto _exit2;
|
|
}
|
|
|
|
txdl_priv = vxge_hw_fifo_txdl_private_get(dtr);
|
|
txdl_priv->skb = skb;
|
|
txdl_priv->dma_buffers[j] = dma_pointer;
|
|
|
|
frg_cnt = skb_shinfo(skb)->nr_frags;
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d skb = %p txdl_priv = %p "
|
|
"frag_cnt = %d dma_pointer = 0x%llx", dev->name,
|
|
__func__, __LINE__, skb, txdl_priv,
|
|
frg_cnt, (unsigned long long)dma_pointer);
|
|
|
|
vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
|
|
first_frg_len);
|
|
|
|
frag = &skb_shinfo(skb)->frags[0];
|
|
for (i = 0; i < frg_cnt; i++) {
|
|
/* ignore 0 length fragment */
|
|
if (!frag->size)
|
|
continue;
|
|
|
|
dma_pointer =
|
|
(u64)pci_map_page(fifo->pdev, frag->page,
|
|
frag->page_offset, frag->size,
|
|
PCI_DMA_TODEVICE);
|
|
|
|
if (unlikely(pci_dma_mapping_error(fifo->pdev, dma_pointer)))
|
|
goto _exit0;
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d frag = %d dma_pointer = 0x%llx",
|
|
dev->name, __func__, __LINE__, i,
|
|
(unsigned long long)dma_pointer);
|
|
|
|
txdl_priv->dma_buffers[j] = dma_pointer;
|
|
vxge_hw_fifo_txdl_buffer_set(fifo_hw, dtr, j++, dma_pointer,
|
|
frag->size);
|
|
frag += 1;
|
|
}
|
|
|
|
offload_type = vxge_offload_type(skb);
|
|
|
|
if (offload_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
|
|
|
|
int mss = vxge_tcp_mss(skb);
|
|
if (mss) {
|
|
vxge_debug_tx(VXGE_TRACE,
|
|
"%s: %s:%d mss = %d",
|
|
dev->name, __func__, __LINE__, mss);
|
|
vxge_hw_fifo_txdl_mss_set(dtr, mss);
|
|
} else {
|
|
vxge_assert(skb->len <=
|
|
dev->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE);
|
|
vxge_assert(0);
|
|
goto _exit1;
|
|
}
|
|
}
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL)
|
|
vxge_hw_fifo_txdl_cksum_set_bits(dtr,
|
|
VXGE_HW_FIFO_TXD_TX_CKO_IPV4_EN |
|
|
VXGE_HW_FIFO_TXD_TX_CKO_TCP_EN |
|
|
VXGE_HW_FIFO_TXD_TX_CKO_UDP_EN);
|
|
|
|
vxge_hw_fifo_txdl_post(fifo_hw, dtr);
|
|
#ifdef NETIF_F_LLTX
|
|
dev->trans_start = jiffies; /* NETIF_F_LLTX driver :( */
|
|
#endif
|
|
spin_unlock_irqrestore(&fifo->tx_lock, flags);
|
|
|
|
VXGE_COMPLETE_VPATH_TX(fifo);
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
|
|
dev->name, __func__, __LINE__);
|
|
return NETDEV_TX_OK;
|
|
|
|
_exit0:
|
|
vxge_debug_tx(VXGE_TRACE, "%s: pci_map_page failed", dev->name);
|
|
|
|
_exit1:
|
|
j = 0;
|
|
frag = &skb_shinfo(skb)->frags[0];
|
|
|
|
pci_unmap_single(fifo->pdev, txdl_priv->dma_buffers[j++],
|
|
skb_headlen(skb), PCI_DMA_TODEVICE);
|
|
|
|
for (; j < i; j++) {
|
|
pci_unmap_page(fifo->pdev, txdl_priv->dma_buffers[j],
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
frag += 1;
|
|
}
|
|
|
|
vxge_hw_fifo_txdl_free(fifo_hw, dtr);
|
|
_exit2:
|
|
dev_kfree_skb(skb);
|
|
spin_unlock_irqrestore(&fifo->tx_lock, flags);
|
|
VXGE_COMPLETE_VPATH_TX(fifo);
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
/*
|
|
* vxge_rx_term
|
|
*
|
|
* Function will be called by hw function to abort all outstanding receive
|
|
* descriptors.
|
|
*/
|
|
static void
|
|
vxge_rx_term(void *dtrh, enum vxge_hw_rxd_state state, void *userdata)
|
|
{
|
|
struct vxge_ring *ring = (struct vxge_ring *)userdata;
|
|
struct vxge_rx_priv *rx_priv =
|
|
vxge_hw_ring_rxd_private_get(dtrh);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
if (state != VXGE_HW_RXD_STATE_POSTED)
|
|
return;
|
|
|
|
pci_unmap_single(ring->pdev, rx_priv->data_dma,
|
|
rx_priv->data_size, PCI_DMA_FROMDEVICE);
|
|
|
|
dev_kfree_skb(rx_priv->skb);
|
|
rx_priv->skb_data = NULL;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...",
|
|
ring->ndev->name, __func__, __LINE__);
|
|
}
|
|
|
|
/*
|
|
* vxge_tx_term
|
|
*
|
|
* Function will be called to abort all outstanding tx descriptors
|
|
*/
|
|
static void
|
|
vxge_tx_term(void *dtrh, enum vxge_hw_txdl_state state, void *userdata)
|
|
{
|
|
struct vxge_fifo *fifo = (struct vxge_fifo *)userdata;
|
|
skb_frag_t *frag;
|
|
int i = 0, j, frg_cnt;
|
|
struct vxge_tx_priv *txd_priv = vxge_hw_fifo_txdl_private_get(dtrh);
|
|
struct sk_buff *skb = txd_priv->skb;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
if (state != VXGE_HW_TXDL_STATE_POSTED)
|
|
return;
|
|
|
|
/* check skb validity */
|
|
vxge_assert(skb);
|
|
frg_cnt = skb_shinfo(skb)->nr_frags;
|
|
frag = &skb_shinfo(skb)->frags[0];
|
|
|
|
/* for unfragmented skb */
|
|
pci_unmap_single(fifo->pdev, txd_priv->dma_buffers[i++],
|
|
skb_headlen(skb), PCI_DMA_TODEVICE);
|
|
|
|
for (j = 0; j < frg_cnt; j++) {
|
|
pci_unmap_page(fifo->pdev, txd_priv->dma_buffers[i++],
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
frag += 1;
|
|
}
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
/**
|
|
* vxge_set_multicast
|
|
* @dev: pointer to the device structure
|
|
*
|
|
* Entry point for multicast address enable/disable
|
|
* This function is a driver entry point which gets called by the kernel
|
|
* whenever multicast addresses must be enabled/disabled. This also gets
|
|
* called to set/reset promiscuous mode. Depending on the deivce flag, we
|
|
* determine, if multicast address must be enabled or if promiscuous mode
|
|
* is to be disabled etc.
|
|
*/
|
|
static void vxge_set_multicast(struct net_device *dev)
|
|
{
|
|
struct netdev_hw_addr *ha;
|
|
struct vxgedev *vdev;
|
|
int i, mcast_cnt = 0;
|
|
struct __vxge_hw_device *hldev;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct macInfo mac_info;
|
|
int vpath_idx = 0;
|
|
struct vxge_mac_addrs *mac_entry;
|
|
struct list_head *list_head;
|
|
struct list_head *entry, *next;
|
|
u8 *mac_address = NULL;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d", __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
hldev = (struct __vxge_hw_device *)vdev->devh;
|
|
|
|
if (unlikely(!is_vxge_card_up(vdev)))
|
|
return;
|
|
|
|
if ((dev->flags & IFF_ALLMULTI) && (!vdev->all_multi_flg)) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_open);
|
|
status = vxge_hw_vpath_mcast_enable(
|
|
vdev->vpaths[i].handle);
|
|
vdev->all_multi_flg = 1;
|
|
}
|
|
} else if ((dev->flags & IFF_ALLMULTI) && (vdev->all_multi_flg)) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_open);
|
|
status = vxge_hw_vpath_mcast_disable(
|
|
vdev->vpaths[i].handle);
|
|
vdev->all_multi_flg = 1;
|
|
}
|
|
}
|
|
|
|
if (status != VXGE_HW_OK)
|
|
vxge_debug_init(VXGE_ERR,
|
|
"failed to %s multicast, status %d",
|
|
dev->flags & IFF_ALLMULTI ?
|
|
"enable" : "disable", status);
|
|
|
|
if (!vdev->config.addr_learn_en) {
|
|
if (dev->flags & IFF_PROMISC) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_open);
|
|
status = vxge_hw_vpath_promisc_enable(
|
|
vdev->vpaths[i].handle);
|
|
}
|
|
} else {
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_open);
|
|
status = vxge_hw_vpath_promisc_disable(
|
|
vdev->vpaths[i].handle);
|
|
}
|
|
}
|
|
}
|
|
|
|
memset(&mac_info, 0, sizeof(struct macInfo));
|
|
/* Update individual M_CAST address list */
|
|
if ((!vdev->all_multi_flg) && netdev_mc_count(dev)) {
|
|
|
|
mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
|
|
list_head = &vdev->vpaths[0].mac_addr_list;
|
|
if ((netdev_mc_count(dev) +
|
|
(vdev->vpaths[0].mac_addr_cnt - mcast_cnt)) >
|
|
vdev->vpaths[0].max_mac_addr_cnt)
|
|
goto _set_all_mcast;
|
|
|
|
/* Delete previous MC's */
|
|
for (i = 0; i < mcast_cnt; i++) {
|
|
if (!list_empty(list_head))
|
|
mac_entry = (struct vxge_mac_addrs *)
|
|
list_first_entry(list_head,
|
|
struct vxge_mac_addrs,
|
|
item);
|
|
|
|
list_for_each_safe(entry, next, list_head) {
|
|
|
|
mac_entry = (struct vxge_mac_addrs *) entry;
|
|
/* Copy the mac address to delete */
|
|
mac_address = (u8 *)&mac_entry->macaddr;
|
|
memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
|
|
|
|
/* Is this a multicast address */
|
|
if (0x01 & mac_info.macaddr[0]) {
|
|
for (vpath_idx = 0; vpath_idx <
|
|
vdev->no_of_vpath;
|
|
vpath_idx++) {
|
|
mac_info.vpath_no = vpath_idx;
|
|
status = vxge_del_mac_addr(
|
|
vdev,
|
|
&mac_info);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Add new ones */
|
|
netdev_for_each_mc_addr(ha, dev) {
|
|
memcpy(mac_info.macaddr, ha->addr, ETH_ALEN);
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
|
|
vpath_idx++) {
|
|
mac_info.vpath_no = vpath_idx;
|
|
mac_info.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
|
|
status = vxge_add_mac_addr(vdev, &mac_info);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s:%d Setting individual"
|
|
"multicast address failed",
|
|
__func__, __LINE__);
|
|
goto _set_all_mcast;
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
_set_all_mcast:
|
|
mcast_cnt = vdev->vpaths[0].mcast_addr_cnt;
|
|
/* Delete previous MC's */
|
|
for (i = 0; i < mcast_cnt; i++) {
|
|
|
|
list_for_each_safe(entry, next, list_head) {
|
|
|
|
mac_entry = (struct vxge_mac_addrs *) entry;
|
|
/* Copy the mac address to delete */
|
|
mac_address = (u8 *)&mac_entry->macaddr;
|
|
memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
|
|
|
|
/* Is this a multicast address */
|
|
if (0x01 & mac_info.macaddr[0])
|
|
break;
|
|
}
|
|
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath;
|
|
vpath_idx++) {
|
|
mac_info.vpath_no = vpath_idx;
|
|
status = vxge_del_mac_addr(vdev, &mac_info);
|
|
}
|
|
}
|
|
|
|
/* Enable all multicast */
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_open);
|
|
status = vxge_hw_vpath_mcast_enable(
|
|
vdev->vpaths[i].handle);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s:%d Enabling all multicasts failed",
|
|
__func__, __LINE__);
|
|
}
|
|
vdev->all_multi_flg = 1;
|
|
}
|
|
dev->flags |= IFF_ALLMULTI;
|
|
}
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
/**
|
|
* vxge_set_mac_addr
|
|
* @dev: pointer to the device structure
|
|
*
|
|
* Update entry "0" (default MAC addr)
|
|
*/
|
|
static int vxge_set_mac_addr(struct net_device *dev, void *p)
|
|
{
|
|
struct sockaddr *addr = p;
|
|
struct vxgedev *vdev;
|
|
struct __vxge_hw_device *hldev;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct macInfo mac_info_new, mac_info_old;
|
|
int vpath_idx = 0;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
hldev = vdev->devh;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EINVAL;
|
|
|
|
memset(&mac_info_new, 0, sizeof(struct macInfo));
|
|
memset(&mac_info_old, 0, sizeof(struct macInfo));
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d Exiting...",
|
|
__func__, __LINE__);
|
|
|
|
/* Get the old address */
|
|
memcpy(mac_info_old.macaddr, dev->dev_addr, dev->addr_len);
|
|
|
|
/* Copy the new address */
|
|
memcpy(mac_info_new.macaddr, addr->sa_data, dev->addr_len);
|
|
|
|
/* First delete the old mac address from all the vpaths
|
|
as we can't specify the index while adding new mac address */
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
|
|
struct vxge_vpath *vpath = &vdev->vpaths[vpath_idx];
|
|
if (!vpath->is_open) {
|
|
/* This can happen when this interface is added/removed
|
|
to the bonding interface. Delete this station address
|
|
from the linked list */
|
|
vxge_mac_list_del(vpath, &mac_info_old);
|
|
|
|
/* Add this new address to the linked list
|
|
for later restoring */
|
|
vxge_mac_list_add(vpath, &mac_info_new);
|
|
|
|
continue;
|
|
}
|
|
/* Delete the station address */
|
|
mac_info_old.vpath_no = vpath_idx;
|
|
status = vxge_del_mac_addr(vdev, &mac_info_old);
|
|
}
|
|
|
|
if (unlikely(!is_vxge_card_up(vdev))) {
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
/* Set this mac address to all the vpaths */
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++) {
|
|
mac_info_new.vpath_no = vpath_idx;
|
|
mac_info_new.state = VXGE_LL_MAC_ADDR_IN_DA_TABLE;
|
|
status = vxge_add_mac_addr(vdev, &mac_info_new);
|
|
if (status != VXGE_HW_OK)
|
|
return -EINVAL;
|
|
}
|
|
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* vxge_vpath_intr_enable
|
|
* @vdev: pointer to vdev
|
|
* @vp_id: vpath for which to enable the interrupts
|
|
*
|
|
* Enables the interrupts for the vpath
|
|
*/
|
|
void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id)
|
|
{
|
|
struct vxge_vpath *vpath = &vdev->vpaths[vp_id];
|
|
int msix_id = 0;
|
|
int tim_msix_id[4] = {0, 1, 0, 0};
|
|
int alarm_msix_id = VXGE_ALARM_MSIX_ID;
|
|
|
|
vxge_hw_vpath_intr_enable(vpath->handle);
|
|
|
|
if (vdev->config.intr_type == INTA)
|
|
vxge_hw_vpath_inta_unmask_tx_rx(vpath->handle);
|
|
else {
|
|
vxge_hw_vpath_msix_set(vpath->handle, tim_msix_id,
|
|
alarm_msix_id);
|
|
|
|
msix_id = vpath->device_id * VXGE_HW_VPATH_MSIX_ACTIVE;
|
|
vxge_hw_vpath_msix_unmask(vpath->handle, msix_id);
|
|
vxge_hw_vpath_msix_unmask(vpath->handle, msix_id + 1);
|
|
|
|
/* enable the alarm vector */
|
|
msix_id = (vpath->handle->vpath->hldev->first_vp_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE) + alarm_msix_id;
|
|
vxge_hw_vpath_msix_unmask(vpath->handle, 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 = vpath->device_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 = (vpath->handle->vpath->hldev->first_vp_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
|
|
vxge_hw_vpath_msix_mask(vpath->handle, msix_id);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* vxge_reset_vpath
|
|
* @vdev: pointer to vdev
|
|
* @vp_id: vpath to reset
|
|
*
|
|
* Resets the vpath
|
|
*/
|
|
static int vxge_reset_vpath(struct vxgedev *vdev, int vp_id)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
int ret = 0;
|
|
|
|
/* check if device is down already */
|
|
if (unlikely(!is_vxge_card_up(vdev)))
|
|
return 0;
|
|
|
|
/* is device reset already scheduled */
|
|
if (test_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
|
|
return 0;
|
|
|
|
if (vdev->vpaths[vp_id].handle) {
|
|
if (vxge_hw_vpath_reset(vdev->vpaths[vp_id].handle)
|
|
== VXGE_HW_OK) {
|
|
if (is_vxge_card_up(vdev) &&
|
|
vxge_hw_vpath_recover_from_reset(
|
|
vdev->vpaths[vp_id].handle)
|
|
!= VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_recover_from_reset"
|
|
"failed for vpath:%d", vp_id);
|
|
return status;
|
|
}
|
|
} else {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_reset failed for"
|
|
"vpath:%d", vp_id);
|
|
return status;
|
|
}
|
|
} else
|
|
return VXGE_HW_FAIL;
|
|
|
|
vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
|
|
vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
|
|
|
|
/* Enable all broadcast */
|
|
vxge_hw_vpath_bcast_enable(vdev->vpaths[vp_id].handle);
|
|
|
|
/* Enable the interrupts */
|
|
vxge_vpath_intr_enable(vdev, vp_id);
|
|
|
|
smp_wmb();
|
|
|
|
/* Enable the flow of traffic through the vpath */
|
|
vxge_hw_vpath_enable(vdev->vpaths[vp_id].handle);
|
|
|
|
smp_wmb();
|
|
vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[vp_id].handle);
|
|
vdev->vpaths[vp_id].ring.last_status = VXGE_HW_OK;
|
|
|
|
/* Vpath reset done */
|
|
clear_bit(vp_id, &vdev->vp_reset);
|
|
|
|
/* Start the vpath queue */
|
|
vxge_wake_tx_queue(&vdev->vpaths[vp_id].fifo, NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int do_vxge_reset(struct vxgedev *vdev, int event)
|
|
{
|
|
enum vxge_hw_status status;
|
|
int ret = 0, vp_id, i;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET)) {
|
|
/* check if device is down already */
|
|
if (unlikely(!is_vxge_card_up(vdev)))
|
|
return 0;
|
|
|
|
/* is reset already scheduled */
|
|
if (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
|
|
return 0;
|
|
}
|
|
|
|
if (event == VXGE_LL_FULL_RESET) {
|
|
/* wait for all the vpath reset to complete */
|
|
for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
|
|
while (test_bit(vp_id, &vdev->vp_reset))
|
|
msleep(50);
|
|
}
|
|
|
|
/* if execution mode is set to debug, don't reset the adapter */
|
|
if (unlikely(vdev->exec_mode)) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: execution mode is debug, returning..",
|
|
vdev->ndev->name);
|
|
clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
vxge_stop_all_tx_queue(vdev);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (event == VXGE_LL_FULL_RESET) {
|
|
vxge_hw_device_intr_disable(vdev->devh);
|
|
|
|
switch (vdev->cric_err_event) {
|
|
case VXGE_HW_EVENT_UNKNOWN:
|
|
vxge_stop_all_tx_queue(vdev);
|
|
vxge_debug_init(VXGE_ERR,
|
|
"fatal: %s: Disabling device due to"
|
|
"unknown error",
|
|
vdev->ndev->name);
|
|
ret = -EPERM;
|
|
goto out;
|
|
case VXGE_HW_EVENT_RESET_START:
|
|
break;
|
|
case VXGE_HW_EVENT_RESET_COMPLETE:
|
|
case VXGE_HW_EVENT_LINK_DOWN:
|
|
case VXGE_HW_EVENT_LINK_UP:
|
|
case VXGE_HW_EVENT_ALARM_CLEARED:
|
|
case VXGE_HW_EVENT_ECCERR:
|
|
case VXGE_HW_EVENT_MRPCIM_ECCERR:
|
|
ret = -EPERM;
|
|
goto out;
|
|
case VXGE_HW_EVENT_FIFO_ERR:
|
|
case VXGE_HW_EVENT_VPATH_ERR:
|
|
break;
|
|
case VXGE_HW_EVENT_CRITICAL_ERR:
|
|
vxge_stop_all_tx_queue(vdev);
|
|
vxge_debug_init(VXGE_ERR,
|
|
"fatal: %s: Disabling device due to"
|
|
"serious error",
|
|
vdev->ndev->name);
|
|
/* SOP or device reset required */
|
|
/* This event is not currently used */
|
|
ret = -EPERM;
|
|
goto out;
|
|
case VXGE_HW_EVENT_SERR:
|
|
vxge_stop_all_tx_queue(vdev);
|
|
vxge_debug_init(VXGE_ERR,
|
|
"fatal: %s: Disabling device due to"
|
|
"serious error",
|
|
vdev->ndev->name);
|
|
ret = -EPERM;
|
|
goto out;
|
|
case VXGE_HW_EVENT_SRPCIM_SERR:
|
|
case VXGE_HW_EVENT_MRPCIM_SERR:
|
|
ret = -EPERM;
|
|
goto out;
|
|
case VXGE_HW_EVENT_SLOT_FREEZE:
|
|
vxge_stop_all_tx_queue(vdev);
|
|
vxge_debug_init(VXGE_ERR,
|
|
"fatal: %s: Disabling device due to"
|
|
"slot freeze",
|
|
vdev->ndev->name);
|
|
ret = -EPERM;
|
|
goto out;
|
|
default:
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_START_RESET))
|
|
vxge_stop_all_tx_queue(vdev);
|
|
|
|
if (event == VXGE_LL_FULL_RESET) {
|
|
status = vxge_reset_all_vpaths(vdev);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"fatal: %s: can not reset vpaths",
|
|
vdev->ndev->name);
|
|
ret = -EPERM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (event == VXGE_LL_COMPL_RESET) {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
if (vdev->vpaths[i].handle) {
|
|
if (vxge_hw_vpath_recover_from_reset(
|
|
vdev->vpaths[i].handle)
|
|
!= VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_recover_"
|
|
"from_reset failed for vpath: "
|
|
"%d", i);
|
|
ret = -EPERM;
|
|
goto out;
|
|
}
|
|
} else {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_reset failed for "
|
|
"vpath:%d", i);
|
|
ret = -EPERM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET)) {
|
|
/* Reprogram the DA table with populated mac addresses */
|
|
for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
|
|
vxge_restore_vpath_mac_addr(&vdev->vpaths[vp_id]);
|
|
vxge_restore_vpath_vid_table(&vdev->vpaths[vp_id]);
|
|
}
|
|
|
|
/* enable vpath interrupts */
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vxge_vpath_intr_enable(vdev, i);
|
|
|
|
vxge_hw_device_intr_enable(vdev->devh);
|
|
|
|
smp_wmb();
|
|
|
|
/* Indicate card up */
|
|
set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
|
|
/* Get the traffic to flow through the vpaths */
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_hw_vpath_enable(vdev->vpaths[i].handle);
|
|
smp_wmb();
|
|
vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
|
|
}
|
|
|
|
vxge_wake_all_tx_queue(vdev);
|
|
}
|
|
|
|
out:
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
|
|
/* Indicate reset done */
|
|
if ((event == VXGE_LL_FULL_RESET) || (event == VXGE_LL_COMPL_RESET))
|
|
clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* vxge_reset
|
|
* @vdev: pointer to ll device
|
|
*
|
|
* driver may reset the chip on events of serr, eccerr, etc
|
|
*/
|
|
int vxge_reset(struct vxgedev *vdev)
|
|
{
|
|
do_vxge_reset(vdev, VXGE_LL_FULL_RESET);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vxge_poll - Receive handler when Receive Polling is used.
|
|
* @dev: pointer to the device structure.
|
|
* @budget: Number of packets budgeted to be processed in this iteration.
|
|
*
|
|
* This function comes into picture only if Receive side is being handled
|
|
* through polling (called NAPI in linux). It mostly does what the normal
|
|
* Rx interrupt handler does in terms of descriptor and packet processing
|
|
* but not in an interrupt context. Also it will process a specified number
|
|
* of packets at most in one iteration. This value is passed down by the
|
|
* kernel as the function argument 'budget'.
|
|
*/
|
|
static int vxge_poll_msix(struct napi_struct *napi, int budget)
|
|
{
|
|
struct vxge_ring *ring =
|
|
container_of(napi, struct vxge_ring, napi);
|
|
int budget_org = budget;
|
|
ring->budget = budget;
|
|
|
|
vxge_hw_vpath_poll_rx(ring->handle);
|
|
|
|
if (ring->pkts_processed < budget_org) {
|
|
napi_complete(napi);
|
|
/* Re enable the Rx interrupts for the vpath */
|
|
vxge_hw_channel_msix_unmask(
|
|
(struct __vxge_hw_channel *)ring->handle,
|
|
ring->rx_vector_no);
|
|
}
|
|
|
|
return ring->pkts_processed;
|
|
}
|
|
|
|
static int vxge_poll_inta(struct napi_struct *napi, int budget)
|
|
{
|
|
struct vxgedev *vdev = container_of(napi, struct vxgedev, napi);
|
|
int pkts_processed = 0;
|
|
int i;
|
|
int budget_org = budget;
|
|
struct vxge_ring *ring;
|
|
|
|
struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)
|
|
pci_get_drvdata(vdev->pdev);
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
ring = &vdev->vpaths[i].ring;
|
|
ring->budget = budget;
|
|
vxge_hw_vpath_poll_rx(ring->handle);
|
|
pkts_processed += ring->pkts_processed;
|
|
budget -= ring->pkts_processed;
|
|
if (budget <= 0)
|
|
break;
|
|
}
|
|
|
|
VXGE_COMPLETE_ALL_TX(vdev);
|
|
|
|
if (pkts_processed < budget_org) {
|
|
napi_complete(napi);
|
|
/* Re enable the Rx interrupts for the ring */
|
|
vxge_hw_device_unmask_all(hldev);
|
|
vxge_hw_device_flush_io(hldev);
|
|
}
|
|
|
|
return pkts_processed;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
/**
|
|
* vxge_netpoll - netpoll event handler entry point
|
|
* @dev : pointer to the device structure.
|
|
* Description:
|
|
* This function will be called by upper layer to check for events on the
|
|
* interface in situations where interrupts are disabled. It is used for
|
|
* specific in-kernel networking tasks, such as remote consoles and kernel
|
|
* debugging over the network (example netdump in RedHat).
|
|
*/
|
|
static void vxge_netpoll(struct net_device *dev)
|
|
{
|
|
struct __vxge_hw_device *hldev;
|
|
struct vxgedev *vdev;
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
if (pci_channel_offline(vdev->pdev))
|
|
return;
|
|
|
|
disable_irq(dev->irq);
|
|
vxge_hw_device_clear_tx_rx(hldev);
|
|
|
|
vxge_hw_device_clear_tx_rx(hldev);
|
|
VXGE_COMPLETE_ALL_RX(vdev);
|
|
VXGE_COMPLETE_ALL_TX(vdev);
|
|
|
|
enable_irq(dev->irq);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
#endif
|
|
|
|
/* RTH configuration */
|
|
static enum vxge_hw_status vxge_rth_configure(struct vxgedev *vdev)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxge_hw_rth_hash_types hash_types;
|
|
u8 itable[256] = {0}; /* indirection table */
|
|
u8 mtable[256] = {0}; /* CPU to vpath mapping */
|
|
int index;
|
|
|
|
/*
|
|
* Filling
|
|
* - itable with bucket numbers
|
|
* - mtable with bucket-to-vpath mapping
|
|
*/
|
|
for (index = 0; index < (1 << vdev->config.rth_bkt_sz); index++) {
|
|
itable[index] = index;
|
|
mtable[index] = index % vdev->no_of_vpath;
|
|
}
|
|
|
|
/* Fill RTH hash types */
|
|
hash_types.hash_type_tcpipv4_en = vdev->config.rth_hash_type_tcpipv4;
|
|
hash_types.hash_type_ipv4_en = vdev->config.rth_hash_type_ipv4;
|
|
hash_types.hash_type_tcpipv6_en = vdev->config.rth_hash_type_tcpipv6;
|
|
hash_types.hash_type_ipv6_en = vdev->config.rth_hash_type_ipv6;
|
|
hash_types.hash_type_tcpipv6ex_en =
|
|
vdev->config.rth_hash_type_tcpipv6ex;
|
|
hash_types.hash_type_ipv6ex_en = vdev->config.rth_hash_type_ipv6ex;
|
|
|
|
/* set indirection table, bucket-to-vpath mapping */
|
|
status = vxge_hw_vpath_rts_rth_itable_set(vdev->vp_handles,
|
|
vdev->no_of_vpath,
|
|
mtable, itable,
|
|
vdev->config.rth_bkt_sz);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"RTH indirection table configuration failed "
|
|
"for vpath:%d", vdev->vpaths[0].device_id);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Because the itable_set() method uses the active_table field
|
|
* for the target virtual path the RTH config should be updated
|
|
* for all VPATHs. The h/w only uses the lowest numbered VPATH
|
|
* when steering frames.
|
|
*/
|
|
for (index = 0; index < vdev->no_of_vpath; index++) {
|
|
status = vxge_hw_vpath_rts_rth_set(
|
|
vdev->vpaths[index].handle,
|
|
vdev->config.rth_algorithm,
|
|
&hash_types,
|
|
vdev->config.rth_bkt_sz);
|
|
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"RTH configuration failed for vpath:%d",
|
|
vdev->vpaths[index].device_id);
|
|
return status;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
int vxge_mac_list_add(struct vxge_vpath *vpath, struct macInfo *mac)
|
|
{
|
|
struct vxge_mac_addrs *new_mac_entry;
|
|
u8 *mac_address = NULL;
|
|
|
|
if (vpath->mac_addr_cnt >= VXGE_MAX_LEARN_MAC_ADDR_CNT)
|
|
return TRUE;
|
|
|
|
new_mac_entry = kzalloc(sizeof(struct vxge_mac_addrs), GFP_ATOMIC);
|
|
if (!new_mac_entry) {
|
|
vxge_debug_mem(VXGE_ERR,
|
|
"%s: memory allocation failed",
|
|
VXGE_DRIVER_NAME);
|
|
return FALSE;
|
|
}
|
|
|
|
list_add(&new_mac_entry->item, &vpath->mac_addr_list);
|
|
|
|
/* Copy the new mac address to the list */
|
|
mac_address = (u8 *)&new_mac_entry->macaddr;
|
|
memcpy(mac_address, mac->macaddr, ETH_ALEN);
|
|
|
|
new_mac_entry->state = mac->state;
|
|
vpath->mac_addr_cnt++;
|
|
|
|
/* Is this a multicast address */
|
|
if (0x01 & mac->macaddr[0])
|
|
vpath->mcast_addr_cnt++;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Add a mac address to DA table */
|
|
enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxge_vpath *vpath;
|
|
enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode;
|
|
|
|
if (0x01 & mac->macaddr[0]) /* multicast address */
|
|
duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE;
|
|
else
|
|
duplicate_mode = VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE;
|
|
|
|
vpath = &vdev->vpaths[mac->vpath_no];
|
|
status = vxge_hw_vpath_mac_addr_add(vpath->handle, mac->macaddr,
|
|
mac->macmask, duplicate_mode);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"DA config add entry failed for vpath:%d",
|
|
vpath->device_id);
|
|
} else
|
|
if (FALSE == vxge_mac_list_add(vpath, mac))
|
|
status = -EPERM;
|
|
|
|
return status;
|
|
}
|
|
|
|
int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac)
|
|
{
|
|
struct list_head *entry, *next;
|
|
u64 del_mac = 0;
|
|
u8 *mac_address = (u8 *) (&del_mac);
|
|
|
|
/* Copy the mac address to delete from the list */
|
|
memcpy(mac_address, mac->macaddr, ETH_ALEN);
|
|
|
|
list_for_each_safe(entry, next, &vpath->mac_addr_list) {
|
|
if (((struct vxge_mac_addrs *)entry)->macaddr == del_mac) {
|
|
list_del(entry);
|
|
kfree((struct vxge_mac_addrs *)entry);
|
|
vpath->mac_addr_cnt--;
|
|
|
|
/* Is this a multicast address */
|
|
if (0x01 & mac->macaddr[0])
|
|
vpath->mcast_addr_cnt--;
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
/* delete a mac address from DA table */
|
|
enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev, struct macInfo *mac)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxge_vpath *vpath;
|
|
|
|
vpath = &vdev->vpaths[mac->vpath_no];
|
|
status = vxge_hw_vpath_mac_addr_delete(vpath->handle, mac->macaddr,
|
|
mac->macmask);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"DA config delete entry failed for vpath:%d",
|
|
vpath->device_id);
|
|
} else
|
|
vxge_mac_list_del(vpath, mac);
|
|
return status;
|
|
}
|
|
|
|
/* list all mac addresses from DA table */
|
|
enum vxge_hw_status
|
|
static vxge_search_mac_addr_in_da_table(struct vxge_vpath *vpath,
|
|
struct macInfo *mac)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
unsigned char macmask[ETH_ALEN];
|
|
unsigned char macaddr[ETH_ALEN];
|
|
|
|
status = vxge_hw_vpath_mac_addr_get(vpath->handle,
|
|
macaddr, macmask);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"DA config list entry failed for vpath:%d",
|
|
vpath->device_id);
|
|
return status;
|
|
}
|
|
|
|
while (memcmp(mac->macaddr, macaddr, ETH_ALEN)) {
|
|
|
|
status = vxge_hw_vpath_mac_addr_get_next(vpath->handle,
|
|
macaddr, macmask);
|
|
if (status != VXGE_HW_OK)
|
|
break;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Store all vlan ids from the list to the vid table */
|
|
enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxgedev *vdev = vpath->vdev;
|
|
u16 vid;
|
|
|
|
if (vdev->vlgrp && vpath->is_open) {
|
|
|
|
for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
|
|
if (!vlan_group_get_device(vdev->vlgrp, vid))
|
|
continue;
|
|
/* Add these vlan to the vid table */
|
|
status = vxge_hw_vpath_vid_add(vpath->handle, vid);
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Store all mac addresses from the list to the DA table */
|
|
enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath)
|
|
{
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct macInfo mac_info;
|
|
u8 *mac_address = NULL;
|
|
struct list_head *entry, *next;
|
|
|
|
memset(&mac_info, 0, sizeof(struct macInfo));
|
|
|
|
if (vpath->is_open) {
|
|
|
|
list_for_each_safe(entry, next, &vpath->mac_addr_list) {
|
|
mac_address =
|
|
(u8 *)&
|
|
((struct vxge_mac_addrs *)entry)->macaddr;
|
|
memcpy(mac_info.macaddr, mac_address, ETH_ALEN);
|
|
((struct vxge_mac_addrs *)entry)->state =
|
|
VXGE_LL_MAC_ADDR_IN_DA_TABLE;
|
|
/* does this mac address already exist in da table? */
|
|
status = vxge_search_mac_addr_in_da_table(vpath,
|
|
&mac_info);
|
|
if (status != VXGE_HW_OK) {
|
|
/* Add this mac address to the DA table */
|
|
status = vxge_hw_vpath_mac_addr_add(
|
|
vpath->handle, mac_info.macaddr,
|
|
mac_info.macmask,
|
|
VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"DA add entry failed for vpath:%d",
|
|
vpath->device_id);
|
|
((struct vxge_mac_addrs *)entry)->state
|
|
= VXGE_LL_MAC_ADDR_IN_LIST;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/* reset vpaths */
|
|
enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
if (vdev->vpaths[i].handle) {
|
|
if (vxge_hw_vpath_reset(vdev->vpaths[i].handle)
|
|
== VXGE_HW_OK) {
|
|
if (is_vxge_card_up(vdev) &&
|
|
vxge_hw_vpath_recover_from_reset(
|
|
vdev->vpaths[i].handle)
|
|
!= VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_recover_"
|
|
"from_reset failed for vpath: "
|
|
"%d", i);
|
|
return status;
|
|
}
|
|
} else {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"vxge_hw_vpath_reset failed for "
|
|
"vpath:%d", i);
|
|
return status;
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/* close vpaths */
|
|
void vxge_close_vpaths(struct vxgedev *vdev, int index)
|
|
{
|
|
int i;
|
|
for (i = index; i < vdev->no_of_vpath; i++) {
|
|
if (vdev->vpaths[i].handle && vdev->vpaths[i].is_open) {
|
|
vxge_hw_vpath_close(vdev->vpaths[i].handle);
|
|
vdev->stats.vpaths_open--;
|
|
}
|
|
vdev->vpaths[i].is_open = 0;
|
|
vdev->vpaths[i].handle = NULL;
|
|
}
|
|
}
|
|
|
|
/* open vpaths */
|
|
int vxge_open_vpaths(struct vxgedev *vdev)
|
|
{
|
|
enum vxge_hw_status status;
|
|
int i;
|
|
u32 vp_id = 0;
|
|
struct vxge_hw_vpath_attr attr;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_assert(vdev->vpaths[i].is_configured);
|
|
attr.vp_id = vdev->vpaths[i].device_id;
|
|
attr.fifo_attr.callback = vxge_xmit_compl;
|
|
attr.fifo_attr.txdl_term = vxge_tx_term;
|
|
attr.fifo_attr.per_txdl_space = sizeof(struct vxge_tx_priv);
|
|
attr.fifo_attr.userdata = (void *)&vdev->vpaths[i].fifo;
|
|
|
|
attr.ring_attr.callback = vxge_rx_1b_compl;
|
|
attr.ring_attr.rxd_init = vxge_rx_initial_replenish;
|
|
attr.ring_attr.rxd_term = vxge_rx_term;
|
|
attr.ring_attr.per_rxd_space = sizeof(struct vxge_rx_priv);
|
|
attr.ring_attr.userdata = (void *)&vdev->vpaths[i].ring;
|
|
|
|
vdev->vpaths[i].ring.ndev = vdev->ndev;
|
|
vdev->vpaths[i].ring.pdev = vdev->pdev;
|
|
status = vxge_hw_vpath_open(vdev->devh, &attr,
|
|
&(vdev->vpaths[i].handle));
|
|
if (status == VXGE_HW_OK) {
|
|
vdev->vpaths[i].fifo.handle =
|
|
(struct __vxge_hw_fifo *)attr.fifo_attr.userdata;
|
|
vdev->vpaths[i].ring.handle =
|
|
(struct __vxge_hw_ring *)attr.ring_attr.userdata;
|
|
vdev->vpaths[i].fifo.tx_steering_type =
|
|
vdev->config.tx_steering_type;
|
|
vdev->vpaths[i].fifo.ndev = vdev->ndev;
|
|
vdev->vpaths[i].fifo.pdev = vdev->pdev;
|
|
vdev->vpaths[i].fifo.indicate_max_pkts =
|
|
vdev->config.fifo_indicate_max_pkts;
|
|
vdev->vpaths[i].ring.rx_vector_no = 0;
|
|
vdev->vpaths[i].ring.rx_csum = vdev->rx_csum;
|
|
vdev->vpaths[i].is_open = 1;
|
|
vdev->vp_handles[i] = vdev->vpaths[i].handle;
|
|
vdev->vpaths[i].ring.gro_enable =
|
|
vdev->config.gro_enable;
|
|
vdev->vpaths[i].ring.vlan_tag_strip =
|
|
vdev->vlan_tag_strip;
|
|
vdev->stats.vpaths_open++;
|
|
} else {
|
|
vdev->stats.vpath_open_fail++;
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: vpath: %d failed to open "
|
|
"with status: %d",
|
|
vdev->ndev->name, vdev->vpaths[i].device_id,
|
|
status);
|
|
vxge_close_vpaths(vdev, 0);
|
|
return -EPERM;
|
|
}
|
|
|
|
vp_id =
|
|
((struct __vxge_hw_vpath_handle *)vdev->vpaths[i].handle)->
|
|
vpath->vp_id;
|
|
vdev->vpaths_deployed |= vxge_mBIT(vp_id);
|
|
}
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
/*
|
|
* vxge_isr_napi
|
|
* @irq: the irq of the device.
|
|
* @dev_id: a void pointer to the hldev structure of the Titan device
|
|
* @ptregs: pointer to the registers pushed on the stack.
|
|
*
|
|
* This function is the ISR handler of the device when napi is enabled. It
|
|
* identifies the reason for the interrupt and calls the relevant service
|
|
* routines.
|
|
*/
|
|
static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
|
|
{
|
|
struct net_device *dev;
|
|
struct __vxge_hw_device *hldev;
|
|
u64 reason;
|
|
enum vxge_hw_status status;
|
|
struct vxgedev *vdev = (struct vxgedev *) dev_id;;
|
|
|
|
vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
dev = vdev->ndev;
|
|
hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
|
|
|
|
if (pci_channel_offline(vdev->pdev))
|
|
return IRQ_NONE;
|
|
|
|
if (unlikely(!is_vxge_card_up(vdev)))
|
|
return IRQ_NONE;
|
|
|
|
status = vxge_hw_device_begin_irq(hldev, vdev->exec_mode,
|
|
&reason);
|
|
if (status == VXGE_HW_OK) {
|
|
vxge_hw_device_mask_all(hldev);
|
|
|
|
if (reason &
|
|
VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(
|
|
vdev->vpaths_deployed >>
|
|
(64 - VXGE_HW_MAX_VIRTUAL_PATHS))) {
|
|
|
|
vxge_hw_device_clear_tx_rx(hldev);
|
|
napi_schedule(&vdev->napi);
|
|
vxge_debug_intr(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
return IRQ_HANDLED;
|
|
} else
|
|
vxge_hw_device_unmask_all(hldev);
|
|
} else if (unlikely((status == VXGE_HW_ERR_VPATH) ||
|
|
(status == VXGE_HW_ERR_CRITICAL) ||
|
|
(status == VXGE_HW_ERR_FIFO))) {
|
|
vxge_hw_device_mask_all(hldev);
|
|
vxge_hw_device_flush_io(hldev);
|
|
return IRQ_HANDLED;
|
|
} else if (unlikely(status == VXGE_HW_ERR_SLOT_FREEZE))
|
|
return IRQ_HANDLED;
|
|
|
|
vxge_debug_intr(VXGE_TRACE, "%s:%d Exiting...", __func__, __LINE__);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
#ifdef CONFIG_PCI_MSI
|
|
|
|
static irqreturn_t
|
|
vxge_tx_msix_handle(int irq, void *dev_id)
|
|
{
|
|
struct vxge_fifo *fifo = (struct vxge_fifo *)dev_id;
|
|
|
|
VXGE_COMPLETE_VPATH_TX(fifo);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t
|
|
vxge_rx_msix_napi_handle(int irq, void *dev_id)
|
|
{
|
|
struct vxge_ring *ring = (struct vxge_ring *)dev_id;
|
|
|
|
/* MSIX_IDX for Rx is 1 */
|
|
vxge_hw_channel_msix_mask((struct __vxge_hw_channel *)ring->handle,
|
|
ring->rx_vector_no);
|
|
|
|
napi_schedule(&ring->napi);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t
|
|
vxge_alarm_msix_handle(int irq, void *dev_id)
|
|
{
|
|
int i;
|
|
enum vxge_hw_status status;
|
|
struct vxge_vpath *vpath = (struct vxge_vpath *)dev_id;
|
|
struct vxgedev *vdev = vpath->vdev;
|
|
int msix_id = (vpath->handle->vpath->vp_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, 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,
|
|
msix_id);
|
|
continue;
|
|
}
|
|
vxge_debug_intr(VXGE_ERR,
|
|
"%s: vxge_hw_vpath_alarm_process failed %x ",
|
|
VXGE_DRIVER_NAME, status);
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int vxge_alloc_msix(struct vxgedev *vdev)
|
|
{
|
|
int j, i, ret = 0;
|
|
int msix_intr_vect = 0, temp;
|
|
vdev->intr_cnt = 0;
|
|
|
|
start:
|
|
/* Tx/Rx MSIX Vectors count */
|
|
vdev->intr_cnt = vdev->no_of_vpath * 2;
|
|
|
|
/* Alarm MSIX Vectors count */
|
|
vdev->intr_cnt++;
|
|
|
|
vdev->entries = kzalloc(vdev->intr_cnt * sizeof(struct msix_entry),
|
|
GFP_KERNEL);
|
|
if (!vdev->entries) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: memory allocation failed",
|
|
VXGE_DRIVER_NAME);
|
|
ret = -ENOMEM;
|
|
goto alloc_entries_failed;
|
|
}
|
|
|
|
vdev->vxge_entries =
|
|
kzalloc(vdev->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);
|
|
ret = -ENOMEM;
|
|
goto alloc_vxge_entries_failed;
|
|
}
|
|
|
|
for (i = 0, j = 0; i < vdev->no_of_vpath; 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 = VXGE_ALARM_MSIX_ID;
|
|
vdev->vxge_entries[j].entry = VXGE_ALARM_MSIX_ID;
|
|
vdev->vxge_entries[j].in_use = 0;
|
|
|
|
ret = pci_enable_msix(vdev->pdev, vdev->entries, vdev->intr_cnt);
|
|
|
|
if (ret > 0) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: MSI-X enable failed for %d vectors, ret: %d",
|
|
VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
|
|
if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
|
|
ret = -ENODEV;
|
|
goto enable_msix_failed;
|
|
}
|
|
|
|
kfree(vdev->entries);
|
|
kfree(vdev->vxge_entries);
|
|
vdev->entries = NULL;
|
|
vdev->vxge_entries = NULL;
|
|
/* Try with less no of vector by reducing no of vpaths count */
|
|
temp = (ret - 1)/2;
|
|
vxge_close_vpaths(vdev, temp);
|
|
vdev->no_of_vpath = temp;
|
|
goto start;
|
|
} else if (ret < 0) {
|
|
ret = -ENODEV;
|
|
goto enable_msix_failed;
|
|
}
|
|
return 0;
|
|
|
|
enable_msix_failed:
|
|
kfree(vdev->vxge_entries);
|
|
alloc_vxge_entries_failed:
|
|
kfree(vdev->entries);
|
|
alloc_entries_failed:
|
|
return ret;
|
|
}
|
|
|
|
static int vxge_enable_msix(struct vxgedev *vdev)
|
|
{
|
|
|
|
int i, ret = 0;
|
|
/* 0 - Tx, 1 - Rx */
|
|
int tim_msix_id[4] = {0, 1, 0, 0};
|
|
|
|
vdev->intr_cnt = 0;
|
|
|
|
/* allocate msix vectors */
|
|
ret = vxge_alloc_msix(vdev);
|
|
if (!ret) {
|
|
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.
|
|
*/
|
|
vdev->vpaths[i].ring.rx_vector_no =
|
|
(vdev->vpaths[i].device_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE) + 1;
|
|
|
|
vxge_hw_vpath_msix_set(vdev->vpaths[i].handle,
|
|
tim_msix_id, VXGE_ALARM_MSIX_ID);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void vxge_rem_msix_isr(struct vxgedev *vdev)
|
|
{
|
|
int intr_cnt;
|
|
|
|
for (intr_cnt = 0; intr_cnt < (vdev->no_of_vpath * 2 + 1);
|
|
intr_cnt++) {
|
|
if (vdev->vxge_entries[intr_cnt].in_use) {
|
|
synchronize_irq(vdev->entries[intr_cnt].vector);
|
|
free_irq(vdev->entries[intr_cnt].vector,
|
|
vdev->vxge_entries[intr_cnt].arg);
|
|
vdev->vxge_entries[intr_cnt].in_use = 0;
|
|
}
|
|
}
|
|
|
|
kfree(vdev->entries);
|
|
kfree(vdev->vxge_entries);
|
|
vdev->entries = NULL;
|
|
vdev->vxge_entries = NULL;
|
|
|
|
if (vdev->config.intr_type == MSI_X)
|
|
pci_disable_msix(vdev->pdev);
|
|
}
|
|
#endif
|
|
|
|
static void vxge_rem_isr(struct vxgedev *vdev)
|
|
{
|
|
struct __vxge_hw_device *hldev;
|
|
hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
|
|
|
|
#ifdef CONFIG_PCI_MSI
|
|
if (vdev->config.intr_type == MSI_X) {
|
|
vxge_rem_msix_isr(vdev);
|
|
} else
|
|
#endif
|
|
if (vdev->config.intr_type == INTA) {
|
|
synchronize_irq(vdev->pdev->irq);
|
|
free_irq(vdev->pdev->irq, vdev);
|
|
}
|
|
}
|
|
|
|
static int vxge_add_isr(struct vxgedev *vdev)
|
|
{
|
|
int ret = 0;
|
|
#ifdef CONFIG_PCI_MSI
|
|
int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
|
|
int pci_fun = PCI_FUNC(vdev->pdev->devfn);
|
|
|
|
if (vdev->config.intr_type == MSI_X)
|
|
ret = vxge_enable_msix(vdev);
|
|
|
|
if (ret) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Enabling MSI-X Failed", VXGE_DRIVER_NAME);
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Defaulting to INTA", VXGE_DRIVER_NAME);
|
|
vdev->config.intr_type = INTA;
|
|
}
|
|
|
|
if (vdev->config.intr_type == MSI_X) {
|
|
for (intr_idx = 0;
|
|
intr_idx < (vdev->no_of_vpath *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE); intr_idx++) {
|
|
|
|
msix_idx = intr_idx % VXGE_HW_VPATH_MSIX_ACTIVE;
|
|
irq_req = 0;
|
|
|
|
switch (msix_idx) {
|
|
case 0:
|
|
snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
|
|
"%s:vxge:MSI-X %d - Tx - fn:%d vpath:%d",
|
|
vdev->ndev->name,
|
|
vdev->entries[intr_cnt].entry,
|
|
pci_fun, vp_idx);
|
|
ret = request_irq(
|
|
vdev->entries[intr_cnt].vector,
|
|
vxge_tx_msix_handle, 0,
|
|
vdev->desc[intr_cnt],
|
|
&vdev->vpaths[vp_idx].fifo);
|
|
vdev->vxge_entries[intr_cnt].arg =
|
|
&vdev->vpaths[vp_idx].fifo;
|
|
irq_req = 1;
|
|
break;
|
|
case 1:
|
|
snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
|
|
"%s:vxge:MSI-X %d - Rx - fn:%d vpath:%d",
|
|
vdev->ndev->name,
|
|
vdev->entries[intr_cnt].entry,
|
|
pci_fun, vp_idx);
|
|
ret = request_irq(
|
|
vdev->entries[intr_cnt].vector,
|
|
vxge_rx_msix_napi_handle,
|
|
0,
|
|
vdev->desc[intr_cnt],
|
|
&vdev->vpaths[vp_idx].ring);
|
|
vdev->vxge_entries[intr_cnt].arg =
|
|
&vdev->vpaths[vp_idx].ring;
|
|
irq_req = 1;
|
|
break;
|
|
}
|
|
|
|
if (ret) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: MSIX - %d Registration failed",
|
|
vdev->ndev->name, intr_cnt);
|
|
vxge_rem_msix_isr(vdev);
|
|
vdev->config.intr_type = INTA;
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Defaulting to INTA"
|
|
, vdev->ndev->name);
|
|
goto INTA_MODE;
|
|
}
|
|
|
|
if (irq_req) {
|
|
/* We requested for this msix interrupt */
|
|
vdev->vxge_entries[intr_cnt].in_use = 1;
|
|
msix_idx += vdev->vpaths[vp_idx].device_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE;
|
|
vxge_hw_vpath_msix_unmask(
|
|
vdev->vpaths[vp_idx].handle,
|
|
msix_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->no_of_vpath * 2;
|
|
snprintf(vdev->desc[intr_cnt], VXGE_INTR_STRLEN,
|
|
"%s:vxge:MSI-X %d - Alarm - fn:%d",
|
|
vdev->ndev->name,
|
|
vdev->entries[intr_cnt].entry,
|
|
pci_fun);
|
|
/* For Alarm interrupts */
|
|
ret = request_irq(vdev->entries[intr_cnt].vector,
|
|
vxge_alarm_msix_handle, 0,
|
|
vdev->desc[intr_cnt],
|
|
&vdev->vpaths[0]);
|
|
if (ret) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: MSIX - %d Registration failed",
|
|
vdev->ndev->name, intr_cnt);
|
|
vxge_rem_msix_isr(vdev);
|
|
vdev->config.intr_type = INTA;
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Defaulting to INTA",
|
|
vdev->ndev->name);
|
|
goto INTA_MODE;
|
|
}
|
|
|
|
msix_idx = (vdev->vpaths[0].handle->vpath->vp_id *
|
|
VXGE_HW_VPATH_MSIX_ACTIVE) + VXGE_ALARM_MSIX_ID;
|
|
vxge_hw_vpath_msix_unmask(vdev->vpaths[vp_idx].handle,
|
|
msix_idx);
|
|
vdev->vxge_entries[intr_cnt].in_use = 1;
|
|
vdev->vxge_entries[intr_cnt].arg = &vdev->vpaths[0];
|
|
}
|
|
INTA_MODE:
|
|
#endif
|
|
|
|
if (vdev->config.intr_type == INTA) {
|
|
snprintf(vdev->desc[0], VXGE_INTR_STRLEN,
|
|
"%s:vxge:INTA", vdev->ndev->name);
|
|
vxge_hw_device_set_intr_type(vdev->devh,
|
|
VXGE_HW_INTR_MODE_IRQLINE);
|
|
vxge_hw_vpath_tti_ci_set(vdev->devh,
|
|
vdev->vpaths[0].device_id);
|
|
ret = request_irq((int) vdev->pdev->irq,
|
|
vxge_isr_napi,
|
|
IRQF_SHARED, vdev->desc[0], vdev);
|
|
if (ret) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s %s-%d: ISR registration failed",
|
|
VXGE_DRIVER_NAME, "IRQ", vdev->pdev->irq);
|
|
return -ENODEV;
|
|
}
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"new %s-%d line allocated",
|
|
"IRQ", vdev->pdev->irq);
|
|
}
|
|
|
|
return VXGE_HW_OK;
|
|
}
|
|
|
|
static void vxge_poll_vp_reset(unsigned long data)
|
|
{
|
|
struct vxgedev *vdev = (struct vxgedev *)data;
|
|
int i, j = 0;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
if (test_bit(i, &vdev->vp_reset)) {
|
|
vxge_reset_vpath(vdev, i);
|
|
j++;
|
|
}
|
|
}
|
|
if (j && (vdev->config.intr_type != MSI_X)) {
|
|
vxge_hw_device_unmask_all(vdev->devh);
|
|
vxge_hw_device_flush_io(vdev->devh);
|
|
}
|
|
|
|
mod_timer(&vdev->vp_reset_timer, jiffies + HZ / 2);
|
|
}
|
|
|
|
static void vxge_poll_vp_lockup(unsigned long data)
|
|
{
|
|
struct vxgedev *vdev = (struct vxgedev *)data;
|
|
int i;
|
|
struct vxge_ring *ring;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
ring = &vdev->vpaths[i].ring;
|
|
/* Did this vpath received any packets */
|
|
if (ring->stats.prev_rx_frms == ring->stats.rx_frms) {
|
|
status = vxge_hw_vpath_check_leak(ring->handle);
|
|
|
|
/* Did it received any packets last time */
|
|
if ((VXGE_HW_FAIL == status) &&
|
|
(VXGE_HW_FAIL == ring->last_status)) {
|
|
|
|
/* schedule vpath reset */
|
|
if (!test_and_set_bit(i, &vdev->vp_reset)) {
|
|
|
|
/* disable interrupts for this vpath */
|
|
vxge_vpath_intr_disable(vdev, i);
|
|
|
|
/* stop the queue for this vpath */
|
|
vxge_stop_tx_queue(&vdev->vpaths[i].
|
|
fifo);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
ring->stats.prev_rx_frms = ring->stats.rx_frms;
|
|
ring->last_status = status;
|
|
}
|
|
|
|
/* Check every 1 milli second */
|
|
mod_timer(&vdev->vp_lockup_timer, jiffies + HZ / 1000);
|
|
}
|
|
|
|
/**
|
|
* vxge_open
|
|
* @dev: pointer to the device structure.
|
|
*
|
|
* This function is the open entry point of the driver. It mainly calls a
|
|
* function to allocate Rx buffers and inserts them into the buffer
|
|
* descriptors and then enables the Rx part of the NIC.
|
|
* Return value: '0' on success and an appropriate (-)ve integer as
|
|
* defined in errno.h file on failure.
|
|
*/
|
|
int
|
|
vxge_open(struct net_device *dev)
|
|
{
|
|
enum vxge_hw_status status;
|
|
struct vxgedev *vdev;
|
|
struct __vxge_hw_device *hldev;
|
|
int ret = 0;
|
|
int i;
|
|
u64 val64, function_mode;
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d", dev->name, __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
|
|
function_mode = vdev->config.device_hw_info.function_mode;
|
|
|
|
/* make sure you have link off by default every time Nic is
|
|
* initialized */
|
|
netif_carrier_off(dev);
|
|
|
|
/* Open VPATHs */
|
|
status = vxge_open_vpaths(vdev);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: fatal: Vpath open failed", vdev->ndev->name);
|
|
ret = -EPERM;
|
|
goto out0;
|
|
}
|
|
|
|
vdev->mtu = dev->mtu;
|
|
|
|
status = vxge_add_isr(vdev);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: fatal: ISR add failed", dev->name);
|
|
ret = -EPERM;
|
|
goto out1;
|
|
}
|
|
|
|
|
|
if (vdev->config.intr_type != MSI_X) {
|
|
netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
|
|
vdev->config.napi_weight);
|
|
napi_enable(&vdev->napi);
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vdev->vpaths[i].ring.napi_p = &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);
|
|
vdev->vpaths[i].ring.napi_p =
|
|
&vdev->vpaths[i].ring.napi;
|
|
}
|
|
}
|
|
|
|
/* configure RTH */
|
|
if (vdev->config.rth_steering) {
|
|
status = vxge_rth_configure(vdev);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: fatal: RTH configuration failed",
|
|
dev->name);
|
|
ret = -EPERM;
|
|
goto out2;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
/* set initial mtu before enabling the device */
|
|
status = vxge_hw_vpath_mtu_set(vdev->vpaths[i].handle,
|
|
vdev->mtu);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: fatal: can not set new MTU", dev->name);
|
|
ret = -EPERM;
|
|
goto out2;
|
|
}
|
|
}
|
|
|
|
VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_TRACE, VXGE_COMPONENT_LL, vdev);
|
|
vxge_debug_init(vdev->level_trace,
|
|
"%s: MTU is %d", vdev->ndev->name, vdev->mtu);
|
|
VXGE_DEVICE_DEBUG_LEVEL_SET(VXGE_ERR, VXGE_COMPONENT_LL, vdev);
|
|
|
|
/* Reprogram the DA table with populated mac addresses */
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_restore_vpath_mac_addr(&vdev->vpaths[i]);
|
|
vxge_restore_vpath_vid_table(&vdev->vpaths[i]);
|
|
}
|
|
|
|
/* Enable vpath to sniff all unicast/multicast traffic that not
|
|
* addressed to them. We allow promiscous mode for PF only
|
|
*/
|
|
|
|
val64 = 0;
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
|
|
val64 |= VXGE_HW_RXMAC_AUTHORIZE_ALL_ADDR_VP(i);
|
|
|
|
vxge_hw_mgmt_reg_write(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(struct vxge_hw_mrpcim_reg,
|
|
rxmac_authorize_all_addr),
|
|
val64);
|
|
|
|
vxge_hw_mgmt_reg_write(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(struct vxge_hw_mrpcim_reg,
|
|
rxmac_authorize_all_vid),
|
|
val64);
|
|
|
|
vxge_set_multicast(dev);
|
|
|
|
/* Enabling Bcast and mcast for all vpath */
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
status = vxge_hw_vpath_bcast_enable(vdev->vpaths[i].handle);
|
|
if (status != VXGE_HW_OK)
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s : Can not enable bcast for vpath "
|
|
"id %d", dev->name, i);
|
|
if (vdev->config.addr_learn_en) {
|
|
status =
|
|
vxge_hw_vpath_mcast_enable(vdev->vpaths[i].handle);
|
|
if (status != VXGE_HW_OK)
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s : Can not enable mcast for vpath "
|
|
"id %d", dev->name, i);
|
|
}
|
|
}
|
|
|
|
vxge_hw_device_setpause_data(vdev->devh, 0,
|
|
vdev->config.tx_pause_enable,
|
|
vdev->config.rx_pause_enable);
|
|
|
|
if (vdev->vp_reset_timer.function == NULL)
|
|
vxge_os_timer(vdev->vp_reset_timer,
|
|
vxge_poll_vp_reset, vdev, (HZ/2));
|
|
|
|
if (vdev->vp_lockup_timer.function == NULL)
|
|
vxge_os_timer(vdev->vp_lockup_timer,
|
|
vxge_poll_vp_lockup, vdev, (HZ/2));
|
|
|
|
set_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
|
|
smp_wmb();
|
|
|
|
if (vxge_hw_device_link_state_get(vdev->devh) == VXGE_HW_LINK_UP) {
|
|
netif_carrier_on(vdev->ndev);
|
|
printk(KERN_NOTICE "%s: Link Up\n", vdev->ndev->name);
|
|
vdev->stats.link_up++;
|
|
}
|
|
|
|
vxge_hw_device_intr_enable(vdev->devh);
|
|
|
|
smp_wmb();
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_hw_vpath_enable(vdev->vpaths[i].handle);
|
|
smp_wmb();
|
|
vxge_hw_vpath_rx_doorbell_init(vdev->vpaths[i].handle);
|
|
}
|
|
|
|
vxge_start_all_tx_queue(vdev);
|
|
goto out0;
|
|
|
|
out2:
|
|
vxge_rem_isr(vdev);
|
|
|
|
/* Disable napi */
|
|
if (vdev->config.intr_type != MSI_X)
|
|
napi_disable(&vdev->napi);
|
|
else {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
napi_disable(&vdev->vpaths[i].ring.napi);
|
|
}
|
|
|
|
out1:
|
|
vxge_close_vpaths(vdev, 0);
|
|
out0:
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...",
|
|
dev->name, __func__, __LINE__);
|
|
return ret;
|
|
}
|
|
|
|
/* Loop throught the mac address list and delete all the entries */
|
|
void vxge_free_mac_add_list(struct vxge_vpath *vpath)
|
|
{
|
|
|
|
struct list_head *entry, *next;
|
|
if (list_empty(&vpath->mac_addr_list))
|
|
return;
|
|
|
|
list_for_each_safe(entry, next, &vpath->mac_addr_list) {
|
|
list_del(entry);
|
|
kfree((struct vxge_mac_addrs *)entry);
|
|
}
|
|
}
|
|
|
|
static void vxge_napi_del_all(struct vxgedev *vdev)
|
|
{
|
|
int i;
|
|
if (vdev->config.intr_type != MSI_X)
|
|
netif_napi_del(&vdev->napi);
|
|
else {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
netif_napi_del(&vdev->vpaths[i].ring.napi);
|
|
}
|
|
}
|
|
|
|
int do_vxge_close(struct net_device *dev, int do_io)
|
|
{
|
|
enum vxge_hw_status status;
|
|
struct vxgedev *vdev;
|
|
struct __vxge_hw_device *hldev;
|
|
int i;
|
|
u64 val64, vpath_vector;
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d",
|
|
dev->name, __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
hldev = (struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
|
|
|
|
if (unlikely(!is_vxge_card_up(vdev)))
|
|
return 0;
|
|
|
|
/* If vxge_handle_crit_err task is executing,
|
|
* wait till it completes. */
|
|
while (test_and_set_bit(__VXGE_STATE_RESET_CARD, &vdev->state))
|
|
msleep(50);
|
|
|
|
clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
if (do_io) {
|
|
/* Put the vpath back in normal mode */
|
|
vpath_vector = vxge_mBIT(vdev->vpaths[0].device_id);
|
|
status = vxge_hw_mgmt_reg_read(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(
|
|
struct vxge_hw_mrpcim_reg,
|
|
rts_mgr_cbasin_cfg),
|
|
&val64);
|
|
|
|
if (status == VXGE_HW_OK) {
|
|
val64 &= ~vpath_vector;
|
|
status = vxge_hw_mgmt_reg_write(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(
|
|
struct vxge_hw_mrpcim_reg,
|
|
rts_mgr_cbasin_cfg),
|
|
val64);
|
|
}
|
|
|
|
/* Remove the function 0 from promiscous mode */
|
|
vxge_hw_mgmt_reg_write(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(struct vxge_hw_mrpcim_reg,
|
|
rxmac_authorize_all_addr),
|
|
0);
|
|
|
|
vxge_hw_mgmt_reg_write(vdev->devh,
|
|
vxge_hw_mgmt_reg_type_mrpcim,
|
|
0,
|
|
(ulong)offsetof(struct vxge_hw_mrpcim_reg,
|
|
rxmac_authorize_all_vid),
|
|
0);
|
|
|
|
smp_wmb();
|
|
}
|
|
del_timer_sync(&vdev->vp_lockup_timer);
|
|
|
|
del_timer_sync(&vdev->vp_reset_timer);
|
|
|
|
/* Disable napi */
|
|
if (vdev->config.intr_type != MSI_X)
|
|
napi_disable(&vdev->napi);
|
|
else {
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
napi_disable(&vdev->vpaths[i].ring.napi);
|
|
}
|
|
|
|
netif_carrier_off(vdev->ndev);
|
|
printk(KERN_NOTICE "%s: Link Down\n", vdev->ndev->name);
|
|
vxge_stop_all_tx_queue(vdev);
|
|
|
|
/* Note that at this point xmit() is stopped by upper layer */
|
|
if (do_io)
|
|
vxge_hw_device_intr_disable(vdev->devh);
|
|
|
|
mdelay(1000);
|
|
|
|
vxge_rem_isr(vdev);
|
|
|
|
vxge_napi_del_all(vdev);
|
|
|
|
if (do_io)
|
|
vxge_reset_all_vpaths(vdev);
|
|
|
|
vxge_close_vpaths(vdev, 0);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s: %s:%d Exiting...", dev->name, __func__, __LINE__);
|
|
|
|
clear_bit(__VXGE_STATE_RESET_CARD, &vdev->state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vxge_close
|
|
* @dev: device pointer.
|
|
*
|
|
* This is the stop entry point of the driver. It needs to undo exactly
|
|
* whatever was done by the open entry point, thus it's usually referred to
|
|
* as the close function.Among other things this function mainly stops the
|
|
* Rx side of the NIC and frees all the Rx buffers in the Rx rings.
|
|
* Return value: '0' on success and an appropriate (-)ve integer as
|
|
* defined in errno.h file on failure.
|
|
*/
|
|
int
|
|
vxge_close(struct net_device *dev)
|
|
{
|
|
do_vxge_close(dev, 1);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vxge_change_mtu
|
|
* @dev: net device pointer.
|
|
* @new_mtu :the new MTU size for the device.
|
|
*
|
|
* A driver entry point to change MTU size for the device. Before changing
|
|
* the MTU the device must be stopped.
|
|
*/
|
|
static int vxge_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
struct vxgedev *vdev = netdev_priv(dev);
|
|
|
|
vxge_debug_entryexit(vdev->level_trace,
|
|
"%s:%d", __func__, __LINE__);
|
|
if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > VXGE_HW_MAX_MTU)) {
|
|
vxge_debug_init(vdev->level_err,
|
|
"%s: mtu size is invalid", dev->name);
|
|
return -EPERM;
|
|
}
|
|
|
|
/* check if device is down already */
|
|
if (unlikely(!is_vxge_card_up(vdev))) {
|
|
/* just store new value, will use later on open() */
|
|
dev->mtu = new_mtu;
|
|
vxge_debug_init(vdev->level_err,
|
|
"%s", "device is down on MTU change");
|
|
return 0;
|
|
}
|
|
|
|
vxge_debug_init(vdev->level_trace,
|
|
"trying to apply new MTU %d", new_mtu);
|
|
|
|
if (vxge_close(dev))
|
|
return -EIO;
|
|
|
|
dev->mtu = new_mtu;
|
|
vdev->mtu = new_mtu;
|
|
|
|
if (vxge_open(dev))
|
|
return -EIO;
|
|
|
|
vxge_debug_init(vdev->level_trace,
|
|
"%s: MTU changed to %d", vdev->ndev->name, new_mtu);
|
|
|
|
vxge_debug_entryexit(vdev->level_trace,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vxge_get_stats
|
|
* @dev: pointer to the device structure
|
|
*
|
|
* Updates the device statistics structure. This function updates the device
|
|
* statistics structure in the net_device structure and returns a pointer
|
|
* to the same.
|
|
*/
|
|
static struct net_device_stats *
|
|
vxge_get_stats(struct net_device *dev)
|
|
{
|
|
struct vxgedev *vdev;
|
|
struct net_device_stats *net_stats;
|
|
int k;
|
|
|
|
vdev = netdev_priv(dev);
|
|
|
|
net_stats = &vdev->stats.net_stats;
|
|
|
|
memset(net_stats, 0, sizeof(struct net_device_stats));
|
|
|
|
for (k = 0; k < vdev->no_of_vpath; k++) {
|
|
net_stats->rx_packets += vdev->vpaths[k].ring.stats.rx_frms;
|
|
net_stats->rx_bytes += vdev->vpaths[k].ring.stats.rx_bytes;
|
|
net_stats->rx_errors += vdev->vpaths[k].ring.stats.rx_errors;
|
|
net_stats->multicast += vdev->vpaths[k].ring.stats.rx_mcast;
|
|
net_stats->rx_dropped +=
|
|
vdev->vpaths[k].ring.stats.rx_dropped;
|
|
|
|
net_stats->tx_packets += vdev->vpaths[k].fifo.stats.tx_frms;
|
|
net_stats->tx_bytes += vdev->vpaths[k].fifo.stats.tx_bytes;
|
|
net_stats->tx_errors += vdev->vpaths[k].fifo.stats.tx_errors;
|
|
}
|
|
|
|
return net_stats;
|
|
}
|
|
|
|
/**
|
|
* vxge_ioctl
|
|
* @dev: Device pointer.
|
|
* @ifr: An IOCTL specific structure, that can contain a pointer to
|
|
* a proprietary structure used to pass information to the driver.
|
|
* @cmd: This is used to distinguish between the different commands that
|
|
* can be passed to the IOCTL functions.
|
|
*
|
|
* Entry point for the Ioctl.
|
|
*/
|
|
static int vxge_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/**
|
|
* vxge_tx_watchdog
|
|
* @dev: pointer to net device structure
|
|
*
|
|
* Watchdog for transmit side.
|
|
* This function is triggered if the Tx Queue is stopped
|
|
* for a pre-defined amount of time when the Interface is still up.
|
|
*/
|
|
static void
|
|
vxge_tx_watchdog(struct net_device *dev)
|
|
{
|
|
struct vxgedev *vdev;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
vdev->cric_err_event = VXGE_HW_EVENT_RESET_START;
|
|
|
|
vxge_reset(vdev);
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
/**
|
|
* vxge_vlan_rx_register
|
|
* @dev: net device pointer.
|
|
* @grp: vlan group
|
|
*
|
|
* Vlan group registration
|
|
*/
|
|
static void
|
|
vxge_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
|
|
{
|
|
struct vxgedev *vdev;
|
|
struct vxge_vpath *vpath;
|
|
int vp;
|
|
u64 vid;
|
|
enum vxge_hw_status status;
|
|
int i;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
vpath = &vdev->vpaths[0];
|
|
if ((NULL == grp) && (vpath->is_open)) {
|
|
/* Get the first vlan */
|
|
status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
|
|
|
|
while (status == VXGE_HW_OK) {
|
|
|
|
/* Delete this vlan from the vid table */
|
|
for (vp = 0; vp < vdev->no_of_vpath; vp++) {
|
|
vpath = &vdev->vpaths[vp];
|
|
if (!vpath->is_open)
|
|
continue;
|
|
|
|
vxge_hw_vpath_vid_delete(vpath->handle, vid);
|
|
}
|
|
|
|
/* Get the next vlan to be deleted */
|
|
vpath = &vdev->vpaths[0];
|
|
status = vxge_hw_vpath_vid_get(vpath->handle, &vid);
|
|
}
|
|
}
|
|
|
|
vdev->vlgrp = grp;
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
if (vdev->vpaths[i].is_configured)
|
|
vdev->vpaths[i].ring.vlgrp = grp;
|
|
}
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
/**
|
|
* vxge_vlan_rx_add_vid
|
|
* @dev: net device pointer.
|
|
* @vid: vid
|
|
*
|
|
* Add the vlan id to the devices vlan id table
|
|
*/
|
|
static void
|
|
vxge_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
|
|
{
|
|
struct vxgedev *vdev;
|
|
struct vxge_vpath *vpath;
|
|
int vp_id;
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
/* Add these vlan to the vid table */
|
|
for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
|
|
vpath = &vdev->vpaths[vp_id];
|
|
if (!vpath->is_open)
|
|
continue;
|
|
vxge_hw_vpath_vid_add(vpath->handle, vid);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* vxge_vlan_rx_add_vid
|
|
* @dev: net device pointer.
|
|
* @vid: vid
|
|
*
|
|
* Remove the vlan id from the device's vlan id table
|
|
*/
|
|
static void
|
|
vxge_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
|
|
{
|
|
struct vxgedev *vdev;
|
|
struct vxge_vpath *vpath;
|
|
int vp_id;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
|
|
vdev = (struct vxgedev *)netdev_priv(dev);
|
|
|
|
vlan_group_set_device(vdev->vlgrp, vid, NULL);
|
|
|
|
/* Delete this vlan from the vid table */
|
|
for (vp_id = 0; vp_id < vdev->no_of_vpath; vp_id++) {
|
|
vpath = &vdev->vpaths[vp_id];
|
|
if (!vpath->is_open)
|
|
continue;
|
|
vxge_hw_vpath_vid_delete(vpath->handle, vid);
|
|
}
|
|
vxge_debug_entryexit(VXGE_TRACE,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
static const struct net_device_ops vxge_netdev_ops = {
|
|
.ndo_open = vxge_open,
|
|
.ndo_stop = vxge_close,
|
|
.ndo_get_stats = vxge_get_stats,
|
|
.ndo_start_xmit = vxge_xmit,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_multicast_list = vxge_set_multicast,
|
|
|
|
.ndo_do_ioctl = vxge_ioctl,
|
|
|
|
.ndo_set_mac_address = vxge_set_mac_addr,
|
|
.ndo_change_mtu = vxge_change_mtu,
|
|
.ndo_vlan_rx_register = vxge_vlan_rx_register,
|
|
.ndo_vlan_rx_kill_vid = vxge_vlan_rx_kill_vid,
|
|
.ndo_vlan_rx_add_vid = vxge_vlan_rx_add_vid,
|
|
|
|
.ndo_tx_timeout = vxge_tx_watchdog,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = vxge_netpoll,
|
|
#endif
|
|
};
|
|
|
|
int __devinit vxge_device_register(struct __vxge_hw_device *hldev,
|
|
struct vxge_config *config,
|
|
int high_dma, int no_of_vpath,
|
|
struct vxgedev **vdev_out)
|
|
{
|
|
struct net_device *ndev;
|
|
enum vxge_hw_status status = VXGE_HW_OK;
|
|
struct vxgedev *vdev;
|
|
int i, ret = 0, no_of_queue = 1;
|
|
u64 stat;
|
|
|
|
*vdev_out = NULL;
|
|
if (config->tx_steering_type == TX_MULTIQ_STEERING)
|
|
no_of_queue = no_of_vpath;
|
|
|
|
ndev = alloc_etherdev_mq(sizeof(struct vxgedev),
|
|
no_of_queue);
|
|
if (ndev == NULL) {
|
|
vxge_debug_init(
|
|
vxge_hw_device_trace_level_get(hldev),
|
|
"%s : device allocation failed", __func__);
|
|
ret = -ENODEV;
|
|
goto _out0;
|
|
}
|
|
|
|
vxge_debug_entryexit(
|
|
vxge_hw_device_trace_level_get(hldev),
|
|
"%s: %s:%d Entering...",
|
|
ndev->name, __func__, __LINE__);
|
|
|
|
vdev = netdev_priv(ndev);
|
|
memset(vdev, 0, sizeof(struct vxgedev));
|
|
|
|
vdev->ndev = ndev;
|
|
vdev->devh = hldev;
|
|
vdev->pdev = hldev->pdev;
|
|
memcpy(&vdev->config, config, sizeof(struct vxge_config));
|
|
vdev->rx_csum = 1; /* Enable Rx CSUM by default. */
|
|
|
|
SET_NETDEV_DEV(ndev, &vdev->pdev->dev);
|
|
|
|
ndev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
|
|
NETIF_F_HW_VLAN_FILTER;
|
|
/* Driver entry points */
|
|
ndev->irq = vdev->pdev->irq;
|
|
ndev->base_addr = (unsigned long) hldev->bar0;
|
|
|
|
ndev->netdev_ops = &vxge_netdev_ops;
|
|
|
|
ndev->watchdog_timeo = VXGE_LL_WATCH_DOG_TIMEOUT;
|
|
|
|
initialize_ethtool_ops(ndev);
|
|
|
|
/* Allocate memory for vpath */
|
|
vdev->vpaths = kzalloc((sizeof(struct vxge_vpath)) *
|
|
no_of_vpath, GFP_KERNEL);
|
|
if (!vdev->vpaths) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: vpath memory allocation failed",
|
|
vdev->ndev->name);
|
|
ret = -ENODEV;
|
|
goto _out1;
|
|
}
|
|
|
|
ndev->features |= NETIF_F_SG;
|
|
|
|
ndev->features |= NETIF_F_HW_CSUM;
|
|
vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
|
|
"%s : checksuming enabled", __func__);
|
|
|
|
if (high_dma) {
|
|
ndev->features |= NETIF_F_HIGHDMA;
|
|
vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
|
|
"%s : using High DMA", __func__);
|
|
}
|
|
|
|
ndev->features |= NETIF_F_TSO | NETIF_F_TSO6;
|
|
|
|
if (vdev->config.gro_enable)
|
|
ndev->features |= NETIF_F_GRO;
|
|
|
|
if (vdev->config.tx_steering_type == TX_MULTIQ_STEERING)
|
|
ndev->real_num_tx_queues = no_of_vpath;
|
|
|
|
#ifdef NETIF_F_LLTX
|
|
ndev->features |= NETIF_F_LLTX;
|
|
#endif
|
|
|
|
for (i = 0; i < no_of_vpath; i++)
|
|
spin_lock_init(&vdev->vpaths[i].fifo.tx_lock);
|
|
|
|
if (register_netdev(ndev)) {
|
|
vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
|
|
"%s: %s : device registration failed!",
|
|
ndev->name, __func__);
|
|
ret = -ENODEV;
|
|
goto _out2;
|
|
}
|
|
|
|
/* Set the factory defined MAC address initially */
|
|
ndev->addr_len = ETH_ALEN;
|
|
|
|
/* Make Link state as off at this point, when the Link change
|
|
* interrupt comes the state will be automatically changed to
|
|
* the right state.
|
|
*/
|
|
netif_carrier_off(ndev);
|
|
|
|
vxge_debug_init(vxge_hw_device_trace_level_get(hldev),
|
|
"%s: Ethernet device registered",
|
|
ndev->name);
|
|
|
|
*vdev_out = vdev;
|
|
|
|
/* Resetting the Device stats */
|
|
status = vxge_hw_mrpcim_stats_access(
|
|
hldev,
|
|
VXGE_HW_STATS_OP_CLEAR_ALL_STATS,
|
|
0,
|
|
0,
|
|
&stat);
|
|
|
|
if (status == VXGE_HW_ERR_PRIVILAGED_OPEARATION)
|
|
vxge_debug_init(
|
|
vxge_hw_device_trace_level_get(hldev),
|
|
"%s: device stats clear returns"
|
|
"VXGE_HW_ERR_PRIVILAGED_OPEARATION", ndev->name);
|
|
|
|
vxge_debug_entryexit(vxge_hw_device_trace_level_get(hldev),
|
|
"%s: %s:%d Exiting...",
|
|
ndev->name, __func__, __LINE__);
|
|
|
|
return ret;
|
|
_out2:
|
|
kfree(vdev->vpaths);
|
|
_out1:
|
|
free_netdev(ndev);
|
|
_out0:
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* vxge_device_unregister
|
|
*
|
|
* This function will unregister and free network device
|
|
*/
|
|
void
|
|
vxge_device_unregister(struct __vxge_hw_device *hldev)
|
|
{
|
|
struct vxgedev *vdev;
|
|
struct net_device *dev;
|
|
char buf[IFNAMSIZ];
|
|
#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
|
|
(VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
|
|
u32 level_trace;
|
|
#endif
|
|
|
|
dev = hldev->ndev;
|
|
vdev = netdev_priv(dev);
|
|
#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
|
|
(VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
|
|
level_trace = vdev->level_trace;
|
|
#endif
|
|
vxge_debug_entryexit(level_trace,
|
|
"%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
|
|
|
|
memcpy(buf, vdev->ndev->name, IFNAMSIZ);
|
|
|
|
/* in 2.6 will call stop() if device is up */
|
|
unregister_netdev(dev);
|
|
|
|
flush_scheduled_work();
|
|
|
|
vxge_debug_init(level_trace, "%s: ethernet device unregistered", buf);
|
|
vxge_debug_entryexit(level_trace,
|
|
"%s: %s:%d Exiting...", buf, __func__, __LINE__);
|
|
}
|
|
|
|
/*
|
|
* vxge_callback_crit_err
|
|
*
|
|
* This function is called by the alarm handler in interrupt context.
|
|
* Driver must analyze it based on the event type.
|
|
*/
|
|
static void
|
|
vxge_callback_crit_err(struct __vxge_hw_device *hldev,
|
|
enum vxge_hw_event type, u64 vp_id)
|
|
{
|
|
struct net_device *dev = hldev->ndev;
|
|
struct vxgedev *vdev = (struct vxgedev *)netdev_priv(dev);
|
|
int vpath_idx;
|
|
|
|
vxge_debug_entryexit(vdev->level_trace,
|
|
"%s: %s:%d", vdev->ndev->name, __func__, __LINE__);
|
|
|
|
/* Note: This event type should be used for device wide
|
|
* indications only - Serious errors, Slot freeze and critical errors
|
|
*/
|
|
vdev->cric_err_event = type;
|
|
|
|
for (vpath_idx = 0; vpath_idx < vdev->no_of_vpath; vpath_idx++)
|
|
if (vdev->vpaths[vpath_idx].device_id == vp_id)
|
|
break;
|
|
|
|
if (!test_bit(__VXGE_STATE_RESET_CARD, &vdev->state)) {
|
|
if (type == VXGE_HW_EVENT_SLOT_FREEZE) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Slot is frozen", vdev->ndev->name);
|
|
} else if (type == VXGE_HW_EVENT_SERR) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Encountered Serious Error",
|
|
vdev->ndev->name);
|
|
} else if (type == VXGE_HW_EVENT_CRITICAL_ERR)
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Encountered Critical Error",
|
|
vdev->ndev->name);
|
|
}
|
|
|
|
if ((type == VXGE_HW_EVENT_SERR) ||
|
|
(type == VXGE_HW_EVENT_SLOT_FREEZE)) {
|
|
if (unlikely(vdev->exec_mode))
|
|
clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
} else if (type == VXGE_HW_EVENT_CRITICAL_ERR) {
|
|
vxge_hw_device_mask_all(hldev);
|
|
if (unlikely(vdev->exec_mode))
|
|
clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
} else if ((type == VXGE_HW_EVENT_FIFO_ERR) ||
|
|
(type == VXGE_HW_EVENT_VPATH_ERR)) {
|
|
|
|
if (unlikely(vdev->exec_mode))
|
|
clear_bit(__VXGE_STATE_CARD_UP, &vdev->state);
|
|
else {
|
|
/* check if this vpath is already set for reset */
|
|
if (!test_and_set_bit(vpath_idx, &vdev->vp_reset)) {
|
|
|
|
/* disable interrupts for this vpath */
|
|
vxge_vpath_intr_disable(vdev, vpath_idx);
|
|
|
|
/* stop the queue for this vpath */
|
|
vxge_stop_tx_queue(&vdev->vpaths[vpath_idx].
|
|
fifo);
|
|
}
|
|
}
|
|
}
|
|
|
|
vxge_debug_entryexit(vdev->level_trace,
|
|
"%s: %s:%d Exiting...",
|
|
vdev->ndev->name, __func__, __LINE__);
|
|
}
|
|
|
|
static void verify_bandwidth(void)
|
|
{
|
|
int i, band_width, total = 0, equal_priority = 0;
|
|
|
|
/* 1. If user enters 0 for some fifo, give equal priority to all */
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
if (bw_percentage[i] == 0) {
|
|
equal_priority = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!equal_priority) {
|
|
/* 2. If sum exceeds 100, give equal priority to all */
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
if (bw_percentage[i] == 0xFF)
|
|
break;
|
|
|
|
total += bw_percentage[i];
|
|
if (total > VXGE_HW_VPATH_BANDWIDTH_MAX) {
|
|
equal_priority = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!equal_priority) {
|
|
/* Is all the bandwidth consumed? */
|
|
if (total < VXGE_HW_VPATH_BANDWIDTH_MAX) {
|
|
if (i < VXGE_HW_MAX_VIRTUAL_PATHS) {
|
|
/* Split rest of bw equally among next VPs*/
|
|
band_width =
|
|
(VXGE_HW_VPATH_BANDWIDTH_MAX - total) /
|
|
(VXGE_HW_MAX_VIRTUAL_PATHS - i);
|
|
if (band_width < 2) /* min of 2% */
|
|
equal_priority = 1;
|
|
else {
|
|
for (; i < VXGE_HW_MAX_VIRTUAL_PATHS;
|
|
i++)
|
|
bw_percentage[i] =
|
|
band_width;
|
|
}
|
|
}
|
|
} else if (i < VXGE_HW_MAX_VIRTUAL_PATHS)
|
|
equal_priority = 1;
|
|
}
|
|
|
|
if (equal_priority) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Assigning equal bandwidth to all the vpaths",
|
|
VXGE_DRIVER_NAME);
|
|
bw_percentage[0] = VXGE_HW_VPATH_BANDWIDTH_MAX /
|
|
VXGE_HW_MAX_VIRTUAL_PATHS;
|
|
for (i = 1; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
|
|
bw_percentage[i] = bw_percentage[0];
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Vpath configuration
|
|
*/
|
|
static int __devinit vxge_config_vpaths(
|
|
struct vxge_hw_device_config *device_config,
|
|
u64 vpath_mask, struct vxge_config *config_param)
|
|
{
|
|
int i, no_of_vpaths = 0, default_no_vpath = 0, temp;
|
|
u32 txdl_size, txdl_per_memblock;
|
|
|
|
temp = driver_config->vpath_per_dev;
|
|
if ((driver_config->vpath_per_dev == VXGE_USE_DEFAULT) &&
|
|
(max_config_dev == VXGE_MAX_CONFIG_DEV)) {
|
|
/* No more CPU. Return vpath number as zero.*/
|
|
if (driver_config->g_no_cpus == -1)
|
|
return 0;
|
|
|
|
if (!driver_config->g_no_cpus)
|
|
driver_config->g_no_cpus = num_online_cpus();
|
|
|
|
driver_config->vpath_per_dev = driver_config->g_no_cpus >> 1;
|
|
if (!driver_config->vpath_per_dev)
|
|
driver_config->vpath_per_dev = 1;
|
|
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
|
|
if (!vxge_bVALn(vpath_mask, i, 1))
|
|
continue;
|
|
else
|
|
default_no_vpath++;
|
|
if (default_no_vpath < driver_config->vpath_per_dev)
|
|
driver_config->vpath_per_dev = default_no_vpath;
|
|
|
|
driver_config->g_no_cpus = driver_config->g_no_cpus -
|
|
(driver_config->vpath_per_dev * 2);
|
|
if (driver_config->g_no_cpus <= 0)
|
|
driver_config->g_no_cpus = -1;
|
|
}
|
|
|
|
if (driver_config->vpath_per_dev == 1) {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: Disable tx and rx steering, "
|
|
"as single vpath is configured", VXGE_DRIVER_NAME);
|
|
config_param->rth_steering = NO_STEERING;
|
|
config_param->tx_steering_type = NO_STEERING;
|
|
device_config->rth_en = 0;
|
|
}
|
|
|
|
/* configure bandwidth */
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++)
|
|
device_config->vp_config[i].min_bandwidth = bw_percentage[i];
|
|
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
device_config->vp_config[i].vp_id = i;
|
|
device_config->vp_config[i].mtu = VXGE_HW_DEFAULT_MTU;
|
|
if (no_of_vpaths < driver_config->vpath_per_dev) {
|
|
if (!vxge_bVALn(vpath_mask, i, 1)) {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: vpath: %d is not available",
|
|
VXGE_DRIVER_NAME, i);
|
|
continue;
|
|
} else {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: vpath: %d available",
|
|
VXGE_DRIVER_NAME, i);
|
|
no_of_vpaths++;
|
|
}
|
|
} else {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: vpath: %d is not configured, "
|
|
"max_config_vpath exceeded",
|
|
VXGE_DRIVER_NAME, i);
|
|
break;
|
|
}
|
|
|
|
/* Configure Tx fifo's */
|
|
device_config->vp_config[i].fifo.enable =
|
|
VXGE_HW_FIFO_ENABLE;
|
|
device_config->vp_config[i].fifo.max_frags =
|
|
MAX_SKB_FRAGS + 1;
|
|
device_config->vp_config[i].fifo.memblock_size =
|
|
VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE;
|
|
|
|
txdl_size = device_config->vp_config[i].fifo.max_frags *
|
|
sizeof(struct vxge_hw_fifo_txd);
|
|
txdl_per_memblock = VXGE_HW_MIN_FIFO_MEMBLOCK_SIZE / txdl_size;
|
|
|
|
device_config->vp_config[i].fifo.fifo_blocks =
|
|
((VXGE_DEF_FIFO_LENGTH - 1) / txdl_per_memblock) + 1;
|
|
|
|
device_config->vp_config[i].fifo.intr =
|
|
VXGE_HW_FIFO_QUEUE_INTR_DISABLE;
|
|
|
|
/* Configure tti properties */
|
|
device_config->vp_config[i].tti.intr_enable =
|
|
VXGE_HW_TIM_INTR_ENABLE;
|
|
|
|
device_config->vp_config[i].tti.btimer_val =
|
|
(VXGE_TTI_BTIMER_VAL * 1000) / 272;
|
|
|
|
device_config->vp_config[i].tti.timer_ac_en =
|
|
VXGE_HW_TIM_TIMER_AC_ENABLE;
|
|
|
|
/* For msi-x with napi (each vector
|
|
has a handler of its own) -
|
|
Set CI to OFF for all vpaths */
|
|
device_config->vp_config[i].tti.timer_ci_en =
|
|
VXGE_HW_TIM_TIMER_CI_DISABLE;
|
|
|
|
device_config->vp_config[i].tti.timer_ri_en =
|
|
VXGE_HW_TIM_TIMER_RI_DISABLE;
|
|
|
|
device_config->vp_config[i].tti.util_sel =
|
|
VXGE_HW_TIM_UTIL_SEL_LEGACY_TX_NET_UTIL;
|
|
|
|
device_config->vp_config[i].tti.ltimer_val =
|
|
(VXGE_TTI_LTIMER_VAL * 1000) / 272;
|
|
|
|
device_config->vp_config[i].tti.rtimer_val =
|
|
(VXGE_TTI_RTIMER_VAL * 1000) / 272;
|
|
|
|
device_config->vp_config[i].tti.urange_a = TTI_TX_URANGE_A;
|
|
device_config->vp_config[i].tti.urange_b = TTI_TX_URANGE_B;
|
|
device_config->vp_config[i].tti.urange_c = TTI_TX_URANGE_C;
|
|
device_config->vp_config[i].tti.uec_a = TTI_TX_UFC_A;
|
|
device_config->vp_config[i].tti.uec_b = TTI_TX_UFC_B;
|
|
device_config->vp_config[i].tti.uec_c = TTI_TX_UFC_C;
|
|
device_config->vp_config[i].tti.uec_d = TTI_TX_UFC_D;
|
|
|
|
/* Configure Rx rings */
|
|
device_config->vp_config[i].ring.enable =
|
|
VXGE_HW_RING_ENABLE;
|
|
|
|
device_config->vp_config[i].ring.ring_blocks =
|
|
VXGE_HW_DEF_RING_BLOCKS;
|
|
device_config->vp_config[i].ring.buffer_mode =
|
|
VXGE_HW_RING_RXD_BUFFER_MODE_1;
|
|
device_config->vp_config[i].ring.rxds_limit =
|
|
VXGE_HW_DEF_RING_RXDS_LIMIT;
|
|
device_config->vp_config[i].ring.scatter_mode =
|
|
VXGE_HW_RING_SCATTER_MODE_A;
|
|
|
|
/* Configure rti properties */
|
|
device_config->vp_config[i].rti.intr_enable =
|
|
VXGE_HW_TIM_INTR_ENABLE;
|
|
|
|
device_config->vp_config[i].rti.btimer_val =
|
|
(VXGE_RTI_BTIMER_VAL * 1000)/272;
|
|
|
|
device_config->vp_config[i].rti.timer_ac_en =
|
|
VXGE_HW_TIM_TIMER_AC_ENABLE;
|
|
|
|
device_config->vp_config[i].rti.timer_ci_en =
|
|
VXGE_HW_TIM_TIMER_CI_DISABLE;
|
|
|
|
device_config->vp_config[i].rti.timer_ri_en =
|
|
VXGE_HW_TIM_TIMER_RI_DISABLE;
|
|
|
|
device_config->vp_config[i].rti.util_sel =
|
|
VXGE_HW_TIM_UTIL_SEL_LEGACY_RX_NET_UTIL;
|
|
|
|
device_config->vp_config[i].rti.urange_a =
|
|
RTI_RX_URANGE_A;
|
|
device_config->vp_config[i].rti.urange_b =
|
|
RTI_RX_URANGE_B;
|
|
device_config->vp_config[i].rti.urange_c =
|
|
RTI_RX_URANGE_C;
|
|
device_config->vp_config[i].rti.uec_a = RTI_RX_UFC_A;
|
|
device_config->vp_config[i].rti.uec_b = RTI_RX_UFC_B;
|
|
device_config->vp_config[i].rti.uec_c = RTI_RX_UFC_C;
|
|
device_config->vp_config[i].rti.uec_d = RTI_RX_UFC_D;
|
|
|
|
device_config->vp_config[i].rti.rtimer_val =
|
|
(VXGE_RTI_RTIMER_VAL * 1000) / 272;
|
|
|
|
device_config->vp_config[i].rti.ltimer_val =
|
|
(VXGE_RTI_LTIMER_VAL * 1000) / 272;
|
|
|
|
device_config->vp_config[i].rpa_strip_vlan_tag =
|
|
vlan_tag_strip;
|
|
}
|
|
|
|
driver_config->vpath_per_dev = temp;
|
|
return no_of_vpaths;
|
|
}
|
|
|
|
/* initialize device configuratrions */
|
|
static void __devinit vxge_device_config_init(
|
|
struct vxge_hw_device_config *device_config,
|
|
int *intr_type)
|
|
{
|
|
/* Used for CQRQ/SRQ. */
|
|
device_config->dma_blockpool_initial =
|
|
VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
|
|
|
|
device_config->dma_blockpool_max =
|
|
VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
|
|
|
|
if (max_mac_vpath > VXGE_MAX_MAC_ADDR_COUNT)
|
|
max_mac_vpath = VXGE_MAX_MAC_ADDR_COUNT;
|
|
|
|
#ifndef CONFIG_PCI_MSI
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: This Kernel does not support "
|
|
"MSI-X. Defaulting to INTA", VXGE_DRIVER_NAME);
|
|
*intr_type = INTA;
|
|
#endif
|
|
|
|
/* Configure whether MSI-X or IRQL. */
|
|
switch (*intr_type) {
|
|
case INTA:
|
|
device_config->intr_mode = VXGE_HW_INTR_MODE_IRQLINE;
|
|
break;
|
|
|
|
case MSI_X:
|
|
device_config->intr_mode = VXGE_HW_INTR_MODE_MSIX;
|
|
break;
|
|
}
|
|
/* Timer period between device poll */
|
|
device_config->device_poll_millis = VXGE_TIMER_DELAY;
|
|
|
|
/* Configure mac based steering. */
|
|
device_config->rts_mac_en = addr_learn_en;
|
|
|
|
/* Configure Vpaths */
|
|
device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_MULTI_IT;
|
|
|
|
vxge_debug_ll_config(VXGE_TRACE, "%s : Device Config Params ",
|
|
__func__);
|
|
vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_initial : %d",
|
|
device_config->dma_blockpool_initial);
|
|
vxge_debug_ll_config(VXGE_TRACE, "dma_blockpool_max : %d",
|
|
device_config->dma_blockpool_max);
|
|
vxge_debug_ll_config(VXGE_TRACE, "intr_mode : %d",
|
|
device_config->intr_mode);
|
|
vxge_debug_ll_config(VXGE_TRACE, "device_poll_millis : %d",
|
|
device_config->device_poll_millis);
|
|
vxge_debug_ll_config(VXGE_TRACE, "rts_mac_en : %d",
|
|
device_config->rts_mac_en);
|
|
vxge_debug_ll_config(VXGE_TRACE, "rth_en : %d",
|
|
device_config->rth_en);
|
|
vxge_debug_ll_config(VXGE_TRACE, "rth_it_type : %d",
|
|
device_config->rth_it_type);
|
|
}
|
|
|
|
static void __devinit vxge_print_parm(struct vxgedev *vdev, u64 vpath_mask)
|
|
{
|
|
int i;
|
|
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: %d Vpath(s) opened",
|
|
vdev->ndev->name, vdev->no_of_vpath);
|
|
|
|
switch (vdev->config.intr_type) {
|
|
case INTA:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Interrupt type INTA", vdev->ndev->name);
|
|
break;
|
|
|
|
case MSI_X:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Interrupt type MSI-X", vdev->ndev->name);
|
|
break;
|
|
}
|
|
|
|
if (vdev->config.rth_steering) {
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: RTH steering enabled for TCP_IPV4",
|
|
vdev->ndev->name);
|
|
} else {
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: RTH steering disabled", vdev->ndev->name);
|
|
}
|
|
|
|
switch (vdev->config.tx_steering_type) {
|
|
case NO_STEERING:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx steering disabled", vdev->ndev->name);
|
|
break;
|
|
case TX_PRIORITY_STEERING:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Unsupported tx steering option",
|
|
vdev->ndev->name);
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx steering disabled", vdev->ndev->name);
|
|
vdev->config.tx_steering_type = 0;
|
|
break;
|
|
case TX_VLAN_STEERING:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Unsupported tx steering option",
|
|
vdev->ndev->name);
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx steering disabled", vdev->ndev->name);
|
|
vdev->config.tx_steering_type = 0;
|
|
break;
|
|
case TX_MULTIQ_STEERING:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx multiqueue steering enabled",
|
|
vdev->ndev->name);
|
|
break;
|
|
case TX_PORT_STEERING:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx port steering enabled",
|
|
vdev->ndev->name);
|
|
break;
|
|
default:
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Unsupported tx steering type",
|
|
vdev->ndev->name);
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Tx steering disabled", vdev->ndev->name);
|
|
vdev->config.tx_steering_type = 0;
|
|
}
|
|
|
|
if (vdev->config.gro_enable) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Generic receive offload enabled",
|
|
vdev->ndev->name);
|
|
} else
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Generic receive offload disabled",
|
|
vdev->ndev->name);
|
|
|
|
if (vdev->config.addr_learn_en)
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: MAC Address learning enabled", vdev->ndev->name);
|
|
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Rx doorbell mode enabled", vdev->ndev->name);
|
|
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
if (!vxge_bVALn(vpath_mask, i, 1))
|
|
continue;
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: MTU size - %d", vdev->ndev->name,
|
|
((struct __vxge_hw_device *)(vdev->devh))->
|
|
config.vp_config[i].mtu);
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: VLAN tag stripping %s", vdev->ndev->name,
|
|
((struct __vxge_hw_device *)(vdev->devh))->
|
|
config.vp_config[i].rpa_strip_vlan_tag
|
|
? "Enabled" : "Disabled");
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Ring blocks : %d", vdev->ndev->name,
|
|
((struct __vxge_hw_device *)(vdev->devh))->
|
|
config.vp_config[i].ring.ring_blocks);
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Fifo blocks : %d", vdev->ndev->name,
|
|
((struct __vxge_hw_device *)(vdev->devh))->
|
|
config.vp_config[i].fifo.fifo_blocks);
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: Max frags : %d", vdev->ndev->name,
|
|
((struct __vxge_hw_device *)(vdev->devh))->
|
|
config.vp_config[i].fifo.max_frags);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/**
|
|
* vxge_pm_suspend - vxge power management suspend entry point
|
|
*
|
|
*/
|
|
static int vxge_pm_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
/**
|
|
* vxge_pm_resume - vxge power management resume entry point
|
|
*
|
|
*/
|
|
static int vxge_pm_resume(struct pci_dev *pdev)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
#endif
|
|
|
|
/**
|
|
* vxge_io_error_detected - called when PCI error is detected
|
|
* @pdev: Pointer to PCI device
|
|
* @state: The current pci connection state
|
|
*
|
|
* This function is called after a PCI bus error affecting
|
|
* this device has been detected.
|
|
*/
|
|
static pci_ers_result_t vxge_io_error_detected(struct pci_dev *pdev,
|
|
pci_channel_state_t state)
|
|
{
|
|
struct __vxge_hw_device *hldev =
|
|
(struct __vxge_hw_device *) pci_get_drvdata(pdev);
|
|
struct net_device *netdev = hldev->ndev;
|
|
|
|
netif_device_detach(netdev);
|
|
|
|
if (state == pci_channel_io_perm_failure)
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
|
|
if (netif_running(netdev)) {
|
|
/* Bring down the card, while avoiding PCI I/O */
|
|
do_vxge_close(netdev, 0);
|
|
}
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
return PCI_ERS_RESULT_NEED_RESET;
|
|
}
|
|
|
|
/**
|
|
* vxge_io_slot_reset - called after the pci bus has been reset.
|
|
* @pdev: Pointer to PCI device
|
|
*
|
|
* Restart the card from scratch, as if from a cold-boot.
|
|
* At this point, the card has exprienced a hard reset,
|
|
* followed by fixups by BIOS, and has its config space
|
|
* set up identically to what it was at cold boot.
|
|
*/
|
|
static pci_ers_result_t vxge_io_slot_reset(struct pci_dev *pdev)
|
|
{
|
|
struct __vxge_hw_device *hldev =
|
|
(struct __vxge_hw_device *) pci_get_drvdata(pdev);
|
|
struct net_device *netdev = hldev->ndev;
|
|
|
|
struct vxgedev *vdev = netdev_priv(netdev);
|
|
|
|
if (pci_enable_device(pdev)) {
|
|
printk(KERN_ERR "%s: "
|
|
"Cannot re-enable device after reset\n",
|
|
VXGE_DRIVER_NAME);
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
vxge_reset(vdev);
|
|
|
|
return PCI_ERS_RESULT_RECOVERED;
|
|
}
|
|
|
|
/**
|
|
* vxge_io_resume - called when traffic can start flowing again.
|
|
* @pdev: Pointer to PCI device
|
|
*
|
|
* This callback is called when the error recovery driver tells
|
|
* us that its OK to resume normal operation.
|
|
*/
|
|
static void vxge_io_resume(struct pci_dev *pdev)
|
|
{
|
|
struct __vxge_hw_device *hldev =
|
|
(struct __vxge_hw_device *) pci_get_drvdata(pdev);
|
|
struct net_device *netdev = hldev->ndev;
|
|
|
|
if (netif_running(netdev)) {
|
|
if (vxge_open(netdev)) {
|
|
printk(KERN_ERR "%s: "
|
|
"Can't bring device back up after reset\n",
|
|
VXGE_DRIVER_NAME);
|
|
return;
|
|
}
|
|
}
|
|
|
|
netif_device_attach(netdev);
|
|
}
|
|
|
|
static inline u32 vxge_get_num_vfs(u64 function_mode)
|
|
{
|
|
u32 num_functions = 0;
|
|
|
|
switch (function_mode) {
|
|
case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
|
|
case VXGE_HW_FUNCTION_MODE_SRIOV_8:
|
|
num_functions = 8;
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
|
|
num_functions = 1;
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_SRIOV:
|
|
case VXGE_HW_FUNCTION_MODE_MRIOV:
|
|
case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_17:
|
|
num_functions = 17;
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_SRIOV_4:
|
|
num_functions = 4;
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION_2:
|
|
num_functions = 2;
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_MRIOV_8:
|
|
num_functions = 8; /* TODO */
|
|
break;
|
|
}
|
|
return num_functions;
|
|
}
|
|
|
|
/**
|
|
* vxge_probe
|
|
* @pdev : structure containing the PCI related information of the device.
|
|
* @pre: List of PCI devices supported by the driver listed in vxge_id_table.
|
|
* Description:
|
|
* This function is called when a new PCI device gets detected and initializes
|
|
* it.
|
|
* Return value:
|
|
* returns 0 on success and negative on failure.
|
|
*
|
|
*/
|
|
static int __devinit
|
|
vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
|
|
{
|
|
struct __vxge_hw_device *hldev;
|
|
enum vxge_hw_status status;
|
|
int ret;
|
|
int high_dma = 0;
|
|
u64 vpath_mask = 0;
|
|
struct vxgedev *vdev;
|
|
struct vxge_config ll_config;
|
|
struct vxge_hw_device_config *device_config = NULL;
|
|
struct vxge_hw_device_attr attr;
|
|
int i, j, no_of_vpath = 0, max_vpath_supported = 0;
|
|
u8 *macaddr;
|
|
struct vxge_mac_addrs *entry;
|
|
static int bus = -1, device = -1;
|
|
u32 host_type;
|
|
u8 new_device = 0;
|
|
enum vxge_hw_status is_privileged;
|
|
u32 function_mode;
|
|
u32 num_vfs = 0;
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s:%d", __func__, __LINE__);
|
|
attr.pdev = pdev;
|
|
|
|
/* In SRIOV-17 mode, functions of the same adapter
|
|
* can be deployed on different buses */
|
|
if ((!pdev->is_virtfn) && ((bus != pdev->bus->number) ||
|
|
(device != PCI_SLOT(pdev->devfn))))
|
|
new_device = 1;
|
|
|
|
bus = pdev->bus->number;
|
|
device = PCI_SLOT(pdev->devfn);
|
|
|
|
if (new_device) {
|
|
if (driver_config->config_dev_cnt &&
|
|
(driver_config->config_dev_cnt !=
|
|
driver_config->total_dev_cnt))
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Configured %d of %d devices",
|
|
VXGE_DRIVER_NAME,
|
|
driver_config->config_dev_cnt,
|
|
driver_config->total_dev_cnt);
|
|
driver_config->config_dev_cnt = 0;
|
|
driver_config->total_dev_cnt = 0;
|
|
}
|
|
/* Now making the CPU based no of vpath calculation
|
|
* applicable for individual functions as well.
|
|
*/
|
|
driver_config->g_no_cpus = 0;
|
|
driver_config->vpath_per_dev = max_config_vpath;
|
|
|
|
driver_config->total_dev_cnt++;
|
|
if (++driver_config->config_dev_cnt > max_config_dev) {
|
|
ret = 0;
|
|
goto _exit0;
|
|
}
|
|
|
|
device_config = kzalloc(sizeof(struct vxge_hw_device_config),
|
|
GFP_KERNEL);
|
|
if (!device_config) {
|
|
ret = -ENOMEM;
|
|
vxge_debug_init(VXGE_ERR,
|
|
"device_config : malloc failed %s %d",
|
|
__FILE__, __LINE__);
|
|
goto _exit0;
|
|
}
|
|
|
|
memset(&ll_config, 0, sizeof(struct vxge_config));
|
|
ll_config.tx_steering_type = TX_MULTIQ_STEERING;
|
|
ll_config.intr_type = MSI_X;
|
|
ll_config.napi_weight = NEW_NAPI_WEIGHT;
|
|
ll_config.rth_steering = RTH_STEERING;
|
|
|
|
/* get the default configuration parameters */
|
|
vxge_hw_device_config_default_get(device_config);
|
|
|
|
/* initialize configuration parameters */
|
|
vxge_device_config_init(device_config, &ll_config.intr_type);
|
|
|
|
ret = pci_enable_device(pdev);
|
|
if (ret) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s : can not enable PCI device", __func__);
|
|
goto _exit0;
|
|
}
|
|
|
|
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s : using 64bit DMA", __func__);
|
|
|
|
high_dma = 1;
|
|
|
|
if (pci_set_consistent_dma_mask(pdev,
|
|
DMA_BIT_MASK(64))) {
|
|
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, DMA_BIT_MASK(32))) {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s : using 32bit DMA", __func__);
|
|
} else {
|
|
ret = -ENOMEM;
|
|
goto _exit1;
|
|
}
|
|
|
|
if (pci_request_regions(pdev, VXGE_DRIVER_NAME)) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s : request regions failed", __func__);
|
|
ret = -ENODEV;
|
|
goto _exit1;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
attr.bar0 = pci_ioremap_bar(pdev, 0);
|
|
if (!attr.bar0) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s : cannot remap io memory bar0", __func__);
|
|
ret = -ENODEV;
|
|
goto _exit2;
|
|
}
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"pci ioremap bar0: %p:0x%llx",
|
|
attr.bar0,
|
|
(unsigned long long)pci_resource_start(pdev, 0));
|
|
|
|
status = vxge_hw_device_hw_info_get(attr.bar0,
|
|
&ll_config.device_hw_info);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Reading of hardware info failed."
|
|
"Please try upgrading the firmware.", VXGE_DRIVER_NAME);
|
|
ret = -EINVAL;
|
|
goto _exit3;
|
|
}
|
|
|
|
if (ll_config.device_hw_info.fw_version.major !=
|
|
VXGE_DRIVER_FW_VERSION_MAJOR) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Incorrect firmware version."
|
|
"Please upgrade the firmware to version 1.x.x",
|
|
VXGE_DRIVER_NAME);
|
|
ret = -EINVAL;
|
|
goto _exit3;
|
|
}
|
|
|
|
vpath_mask = ll_config.device_hw_info.vpath_mask;
|
|
if (vpath_mask == 0) {
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s: No vpaths available in device", VXGE_DRIVER_NAME);
|
|
ret = -EINVAL;
|
|
goto _exit3;
|
|
}
|
|
|
|
vxge_debug_ll_config(VXGE_TRACE,
|
|
"%s:%d Vpath mask = %llx", __func__, __LINE__,
|
|
(unsigned long long)vpath_mask);
|
|
|
|
function_mode = ll_config.device_hw_info.function_mode;
|
|
host_type = ll_config.device_hw_info.host_type;
|
|
is_privileged = __vxge_hw_device_is_privilaged(host_type,
|
|
ll_config.device_hw_info.func_id);
|
|
|
|
/* Check how many vpaths are available */
|
|
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
if (!((vpath_mask) & vxge_mBIT(i)))
|
|
continue;
|
|
max_vpath_supported++;
|
|
}
|
|
|
|
if (new_device)
|
|
num_vfs = vxge_get_num_vfs(function_mode) - 1;
|
|
|
|
/* Enable SRIOV mode, if firmware has SRIOV support and if it is a PF */
|
|
if (is_sriov(function_mode) && (max_config_dev > 1) &&
|
|
(ll_config.intr_type != INTA) &&
|
|
(is_privileged == VXGE_HW_OK)) {
|
|
ret = pci_enable_sriov(pdev, ((max_config_dev - 1) < num_vfs)
|
|
? (max_config_dev - 1) : num_vfs);
|
|
if (ret)
|
|
vxge_debug_ll_config(VXGE_ERR,
|
|
"Failed in enabling SRIOV mode: %d\n", ret);
|
|
}
|
|
|
|
/*
|
|
* Configure vpaths and get driver configured number of vpaths
|
|
* which is less than or equal to the maximum vpaths per function.
|
|
*/
|
|
no_of_vpath = vxge_config_vpaths(device_config, vpath_mask, &ll_config);
|
|
if (!no_of_vpath) {
|
|
vxge_debug_ll_config(VXGE_ERR,
|
|
"%s: No more vpaths to configure", VXGE_DRIVER_NAME);
|
|
ret = 0;
|
|
goto _exit3;
|
|
}
|
|
|
|
/* Setting driver callbacks */
|
|
attr.uld_callbacks.link_up = vxge_callback_link_up;
|
|
attr.uld_callbacks.link_down = vxge_callback_link_down;
|
|
attr.uld_callbacks.crit_err = vxge_callback_crit_err;
|
|
|
|
status = vxge_hw_device_initialize(&hldev, &attr, device_config);
|
|
if (status != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"Failed to initialize device (%d)", status);
|
|
ret = -EINVAL;
|
|
goto _exit3;
|
|
}
|
|
|
|
/* if FCS stripping is not disabled in MAC fail driver load */
|
|
if (vxge_hw_vpath_strip_fcs_check(hldev, vpath_mask) != VXGE_HW_OK) {
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: FCS stripping is not disabled in MAC"
|
|
" failing driver load", VXGE_DRIVER_NAME);
|
|
ret = -EINVAL;
|
|
goto _exit4;
|
|
}
|
|
|
|
vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
|
|
|
|
/* set private device info */
|
|
pci_set_drvdata(pdev, hldev);
|
|
|
|
ll_config.gro_enable = VXGE_GRO_ALWAYS_AGGREGATE;
|
|
ll_config.fifo_indicate_max_pkts = VXGE_FIFO_INDICATE_MAX_PKTS;
|
|
ll_config.addr_learn_en = addr_learn_en;
|
|
ll_config.rth_algorithm = RTH_ALG_JENKINS;
|
|
ll_config.rth_hash_type_tcpipv4 = VXGE_HW_RING_HASH_TYPE_TCP_IPV4;
|
|
ll_config.rth_hash_type_ipv4 = VXGE_HW_RING_HASH_TYPE_NONE;
|
|
ll_config.rth_hash_type_tcpipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
|
|
ll_config.rth_hash_type_ipv6 = VXGE_HW_RING_HASH_TYPE_NONE;
|
|
ll_config.rth_hash_type_tcpipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
|
|
ll_config.rth_hash_type_ipv6ex = VXGE_HW_RING_HASH_TYPE_NONE;
|
|
ll_config.rth_bkt_sz = RTH_BUCKET_SIZE;
|
|
ll_config.tx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
|
|
ll_config.rx_pause_enable = VXGE_PAUSE_CTRL_ENABLE;
|
|
|
|
if (vxge_device_register(hldev, &ll_config, high_dma, no_of_vpath,
|
|
&vdev)) {
|
|
ret = -EINVAL;
|
|
goto _exit4;
|
|
}
|
|
|
|
vxge_hw_device_debug_set(hldev, VXGE_TRACE, VXGE_COMPONENT_LL);
|
|
VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
|
|
vxge_hw_device_trace_level_get(hldev));
|
|
|
|
/* set private HW device info */
|
|
hldev->ndev = vdev->ndev;
|
|
vdev->mtu = VXGE_HW_DEFAULT_MTU;
|
|
vdev->bar0 = attr.bar0;
|
|
vdev->max_vpath_supported = max_vpath_supported;
|
|
vdev->no_of_vpath = no_of_vpath;
|
|
|
|
/* Virtual Path count */
|
|
for (i = 0, j = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
|
|
if (!vxge_bVALn(vpath_mask, i, 1))
|
|
continue;
|
|
if (j >= vdev->no_of_vpath)
|
|
break;
|
|
|
|
vdev->vpaths[j].is_configured = 1;
|
|
vdev->vpaths[j].device_id = i;
|
|
vdev->vpaths[j].fifo.driver_id = j;
|
|
vdev->vpaths[j].ring.driver_id = j;
|
|
vdev->vpaths[j].vdev = vdev;
|
|
vdev->vpaths[j].max_mac_addr_cnt = max_mac_vpath;
|
|
memcpy((u8 *)vdev->vpaths[j].macaddr,
|
|
(u8 *)ll_config.device_hw_info.mac_addrs[i],
|
|
ETH_ALEN);
|
|
|
|
/* Initialize the mac address list header */
|
|
INIT_LIST_HEAD(&vdev->vpaths[j].mac_addr_list);
|
|
|
|
vdev->vpaths[j].mac_addr_cnt = 0;
|
|
vdev->vpaths[j].mcast_addr_cnt = 0;
|
|
j++;
|
|
}
|
|
vdev->exec_mode = VXGE_EXEC_MODE_DISABLE;
|
|
vdev->max_config_port = max_config_port;
|
|
|
|
vdev->vlan_tag_strip = vlan_tag_strip;
|
|
|
|
/* map the hashing selector table to the configured vpaths */
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vdev->vpath_selector[i] = vpath_selector[i];
|
|
|
|
macaddr = (u8 *)vdev->vpaths[0].macaddr;
|
|
|
|
ll_config.device_hw_info.serial_number[VXGE_HW_INFO_LEN - 1] = '\0';
|
|
ll_config.device_hw_info.product_desc[VXGE_HW_INFO_LEN - 1] = '\0';
|
|
ll_config.device_hw_info.part_number[VXGE_HW_INFO_LEN - 1] = '\0';
|
|
|
|
vxge_debug_init(VXGE_TRACE, "%s: SERIAL NUMBER: %s",
|
|
vdev->ndev->name, ll_config.device_hw_info.serial_number);
|
|
|
|
vxge_debug_init(VXGE_TRACE, "%s: PART NUMBER: %s",
|
|
vdev->ndev->name, ll_config.device_hw_info.part_number);
|
|
|
|
vxge_debug_init(VXGE_TRACE, "%s: Neterion %s Server Adapter",
|
|
vdev->ndev->name, ll_config.device_hw_info.product_desc);
|
|
|
|
vxge_debug_init(VXGE_TRACE, "%s: MAC ADDR: %pM",
|
|
vdev->ndev->name, macaddr);
|
|
|
|
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);
|
|
|
|
if (new_device) {
|
|
switch (ll_config.device_hw_info.function_mode) {
|
|
case VXGE_HW_FUNCTION_MODE_SINGLE_FUNCTION:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Single Function Mode Enabled", vdev->ndev->name);
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Multi Function Mode Enabled", vdev->ndev->name);
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_SRIOV:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Single Root IOV Mode Enabled", vdev->ndev->name);
|
|
break;
|
|
case VXGE_HW_FUNCTION_MODE_MRIOV:
|
|
vxge_debug_init(VXGE_TRACE,
|
|
"%s: Multi Root IOV Mode Enabled", vdev->ndev->name);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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 _exit5;
|
|
}
|
|
macaddr = (u8 *)&entry->macaddr;
|
|
memcpy(macaddr, vdev->ndev->dev_addr, ETH_ALEN);
|
|
list_add(&entry->item, &vdev->vpaths[i].mac_addr_list);
|
|
vdev->vpaths[i].mac_addr_cnt = 1;
|
|
}
|
|
|
|
kfree(device_config);
|
|
|
|
/*
|
|
* INTA is shared in multi-function mode. This is unlike the INTA
|
|
* implementation in MR mode, where each VH has its own INTA message.
|
|
* - INTA is masked (disabled) as long as at least one function sets
|
|
* its TITAN_MASK_ALL_INT.ALARM bit.
|
|
* - INTA is unmasked (enabled) when all enabled functions have cleared
|
|
* their own TITAN_MASK_ALL_INT.ALARM bit.
|
|
* The TITAN_MASK_ALL_INT ALARM & TRAFFIC bits are cleared on power up.
|
|
* Though this driver leaves the top level interrupts unmasked while
|
|
* leaving the required module interrupt bits masked on exit, there
|
|
* could be a rougue driver around that does not follow this procedure
|
|
* resulting in a failure to generate interrupts. The following code is
|
|
* present to prevent such a failure.
|
|
*/
|
|
|
|
if (ll_config.device_hw_info.function_mode ==
|
|
VXGE_HW_FUNCTION_MODE_MULTI_FUNCTION)
|
|
if (vdev->config.intr_type == INTA)
|
|
vxge_hw_device_unmask_all(hldev);
|
|
|
|
vxge_debug_entryexit(VXGE_TRACE, "%s: %s:%d Exiting...",
|
|
vdev->ndev->name, __func__, __LINE__);
|
|
|
|
vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_LL);
|
|
VXGE_COPY_DEBUG_INFO_TO_LL(vdev, vxge_hw_device_error_level_get(hldev),
|
|
vxge_hw_device_trace_level_get(hldev));
|
|
|
|
return 0;
|
|
|
|
_exit5:
|
|
for (i = 0; i < vdev->no_of_vpath; i++)
|
|
vxge_free_mac_add_list(&vdev->vpaths[i]);
|
|
|
|
vxge_device_unregister(hldev);
|
|
_exit4:
|
|
pci_disable_sriov(pdev);
|
|
vxge_hw_device_terminate(hldev);
|
|
_exit3:
|
|
iounmap(attr.bar0);
|
|
_exit2:
|
|
pci_release_regions(pdev);
|
|
_exit1:
|
|
pci_disable_device(pdev);
|
|
_exit0:
|
|
kfree(device_config);
|
|
driver_config->config_dev_cnt--;
|
|
pci_set_drvdata(pdev, NULL);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* vxge_rem_nic - Free the PCI device
|
|
* @pdev: structure containing the PCI related information of the device.
|
|
* Description: This function is called by the Pci subsystem to release a
|
|
* PCI device and free up all resource held up by the device.
|
|
*/
|
|
static void __devexit
|
|
vxge_remove(struct pci_dev *pdev)
|
|
{
|
|
struct __vxge_hw_device *hldev;
|
|
struct vxgedev *vdev = NULL;
|
|
struct net_device *dev;
|
|
int i = 0;
|
|
#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
|
|
(VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
|
|
u32 level_trace;
|
|
#endif
|
|
|
|
hldev = (struct __vxge_hw_device *) pci_get_drvdata(pdev);
|
|
|
|
if (hldev == NULL)
|
|
return;
|
|
dev = hldev->ndev;
|
|
vdev = netdev_priv(dev);
|
|
|
|
#if ((VXGE_DEBUG_INIT & VXGE_DEBUG_MASK) || \
|
|
(VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK))
|
|
level_trace = vdev->level_trace;
|
|
#endif
|
|
vxge_debug_entryexit(level_trace,
|
|
"%s:%d", __func__, __LINE__);
|
|
|
|
vxge_debug_init(level_trace,
|
|
"%s : removing PCI device...", __func__);
|
|
vxge_device_unregister(hldev);
|
|
|
|
for (i = 0; i < vdev->no_of_vpath; i++) {
|
|
vxge_free_mac_add_list(&vdev->vpaths[i]);
|
|
vdev->vpaths[i].mcast_addr_cnt = 0;
|
|
vdev->vpaths[i].mac_addr_cnt = 0;
|
|
}
|
|
|
|
kfree(vdev->vpaths);
|
|
|
|
iounmap(vdev->bar0);
|
|
|
|
pci_disable_sriov(pdev);
|
|
|
|
/* we are safe to free it now */
|
|
free_netdev(dev);
|
|
|
|
vxge_debug_init(level_trace,
|
|
"%s:%d Device unregistered", __func__, __LINE__);
|
|
|
|
vxge_hw_device_terminate(hldev);
|
|
|
|
pci_disable_device(pdev);
|
|
pci_release_regions(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
vxge_debug_entryexit(level_trace,
|
|
"%s:%d Exiting...", __func__, __LINE__);
|
|
}
|
|
|
|
static struct pci_error_handlers vxge_err_handler = {
|
|
.error_detected = vxge_io_error_detected,
|
|
.slot_reset = vxge_io_slot_reset,
|
|
.resume = vxge_io_resume,
|
|
};
|
|
|
|
static struct pci_driver vxge_driver = {
|
|
.name = VXGE_DRIVER_NAME,
|
|
.id_table = vxge_id_table,
|
|
.probe = vxge_probe,
|
|
.remove = __devexit_p(vxge_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = vxge_pm_suspend,
|
|
.resume = vxge_pm_resume,
|
|
#endif
|
|
.err_handler = &vxge_err_handler,
|
|
};
|
|
|
|
static int __init
|
|
vxge_starter(void)
|
|
{
|
|
int ret = 0;
|
|
char version[32];
|
|
snprintf(version, 32, "%s", DRV_VERSION);
|
|
|
|
printk(KERN_INFO "%s: Copyright(c) 2002-2009 Neterion Inc\n",
|
|
VXGE_DRIVER_NAME);
|
|
printk(KERN_INFO "%s: Driver version: %s\n",
|
|
VXGE_DRIVER_NAME, version);
|
|
|
|
verify_bandwidth();
|
|
|
|
driver_config = kzalloc(sizeof(struct vxge_drv_config), GFP_KERNEL);
|
|
if (!driver_config)
|
|
return -ENOMEM;
|
|
|
|
ret = pci_register_driver(&vxge_driver);
|
|
|
|
if (driver_config->config_dev_cnt &&
|
|
(driver_config->config_dev_cnt != driver_config->total_dev_cnt))
|
|
vxge_debug_init(VXGE_ERR,
|
|
"%s: Configured %d of %d devices",
|
|
VXGE_DRIVER_NAME, driver_config->config_dev_cnt,
|
|
driver_config->total_dev_cnt);
|
|
|
|
if (ret)
|
|
kfree(driver_config);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit
|
|
vxge_closer(void)
|
|
{
|
|
pci_unregister_driver(&vxge_driver);
|
|
kfree(driver_config);
|
|
}
|
|
module_init(vxge_starter);
|
|
module_exit(vxge_closer);
|