#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
+#include <linux/crc-ccitt.h>
+#include <linux/crc32.h>
#include "via-velocity.h"
VELOCITY_PARAM(int_works, "Number of packets per interrupt services");
-static int velocity_found1(struct pci_dev *pdev, const struct pci_device_id *ent);
+static int rx_copybreak = 200;
+MODULE_PARM(rx_copybreak, "i");
+MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
+
static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr, struct velocity_info_tbl *info);
static int velocity_get_pci_info(struct velocity_info *, struct pci_dev *pdev);
static void velocity_print_info(struct velocity_info *vptr);
static struct net_device_stats *velocity_get_stats(struct net_device *dev);
static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int velocity_close(struct net_device *dev);
-static int velocity_rx_srv(struct velocity_info *vptr, int status);
static int velocity_receive_frame(struct velocity_info *, int idx);
static int velocity_alloc_rx_buf(struct velocity_info *, int idx);
-static void velocity_init_registers(struct velocity_info *vptr, enum velocity_init_type type);
static void velocity_free_rd_ring(struct velocity_info *vptr);
static void velocity_free_tx_buf(struct velocity_info *vptr, struct velocity_td_info *);
static int velocity_soft_reset(struct velocity_info *vptr);
static void enable_mii_autopoll(struct mac_regs * regs);
static int velocity_mii_read(struct mac_regs *, u8 byIdx, u16 * pdata);
static int velocity_mii_write(struct mac_regs *, u8 byMiiAddr, u16 data);
-static int velocity_set_wol(struct velocity_info *vptr);
-static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context);
-static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context);
static u32 mii_check_media_mode(struct mac_regs * regs);
static u32 check_connection_type(struct mac_regs * regs);
-static void velocity_init_cam_filter(struct velocity_info *vptr);
static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status);
#ifdef CONFIG_PM
+
static int velocity_suspend(struct pci_dev *pdev, u32 state);
static int velocity_resume(struct pci_dev *pdev);
static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr);
static struct notifier_block velocity_inetaddr_notifier = {
- notifier_call:velocity_netdev_event,
+ .notifier_call = velocity_netdev_event,
};
-#endif /* CONFIG_PM */
+static spinlock_t velocity_dev_list_lock = SPIN_LOCK_UNLOCKED;
+static LIST_HEAD(velocity_dev_list);
+
+static void velocity_register_notifier(void)
+{
+ register_inetaddr_notifier(&velocity_inetaddr_notifier);
+}
+
+static void velocity_unregister_notifier(void)
+{
+ unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
+}
+
+#else /* CONFIG_PM */
+
+#define velocity_register_notifier() do {} while (0)
+#define velocity_unregister_notifier() do {} while (0)
+
+#endif /* !CONFIG_PM */
/*
* Internal board variants. At the moment we have only one
*/
static struct pci_device_id velocity_id_table[] __devinitdata = {
- {0x1106, 0x3119, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &chip_info_table[0]},
- {0,}
+ {PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) chip_info_table},
+ {0, }
};
MODULE_DEVICE_TABLE(pci, velocity_id_table);
struct net_device *dev = pci_get_drvdata(pdev);
struct velocity_info *vptr = dev->priv;
+#ifdef CONFIG_PM
+ unsigned long flags;
+
+ spin_lock_irqsave(&velocity_dev_list_lock, flags);
+ if (!list_empty(&velocity_dev_list))
+ list_del(&vptr->list);
+ spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
+#endif
unregister_netdev(dev);
iounmap(vptr->mac_regs);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
free_netdev(dev);
+
+ velocity_nics--;
}
/**
{
struct mac_regs * regs = vptr->mac_regs;
- /* T urn on MCFG_PQEN, turn off MCFG_RTGOPT */
+ /* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
struct mac_regs * regs = vptr->mac_regs;
int i;
- vptr->rd_used = vptr->rd_curr = 0;
+ vptr->rd_dirty = vptr->rd_filled = vptr->rd_curr = 0;
/*
* Init state, all RD entries belong to the NIC
*/
for (i = 0; i < vptr->options.numrx; ++i)
- vptr->rd_ring[i].rdesc0.owner = cpu_to_le32(OWNED_BY_NIC);
+ vptr->rd_ring[i].rdesc0.owner = OWNED_BY_NIC;
writew(vptr->options.numrx, ®s->RBRDU);
writel(vptr->rd_pool_dma, ®s->RDBaseLo);
writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
/*
- * Bback off algorithm use original IEEE standard
+ * Back off algorithm use original IEEE standard
*/
BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
+ /*
+ * Init CAM filter
+ */
+ velocity_init_cam_filter(vptr);
+
/*
* Set packet filter: Receive directed and broadcast address
*/
mac_tx_queue_run(regs, i);
}
- velocity_init_cam_filter(vptr);
-
init_flow_control_register(vptr);
writel(CR0_STOP, ®s->CR0Clr);
mii_status = velocity_get_opt_media_mode(vptr);
netif_stop_queue(vptr->dev);
- mac_clear_isr(regs);
mii_init(vptr, mii_status);
struct mac_regs * regs;
int ret = -ENOMEM;
- if (velocity_nics++ >= MAX_UNITS) {
+ if (velocity_nics >= MAX_UNITS) {
printk(KERN_NOTICE VELOCITY_NAME ": already found %d NICs.\n",
velocity_nics);
return -ENODEV;
vptr->dev = dev;
- dev->priv = vptr;
dev->irq = pdev->irq;
ret = pci_enable_device(pdev);
dev->dev_addr[i] = readb(®s->PAR[i]);
- velocity_get_options(&vptr->options, velocity_nics - 1, dev->name);
+ velocity_get_options(&vptr->options, velocity_nics, dev->name);
/*
* Mask out the options cannot be set to the chip
/* and leave the chip powered down */
pci_set_power_state(pdev, 3);
+#ifdef CONFIG_PM
+ {
+ unsigned long flags;
+
+ spin_lock_irqsave(&velocity_dev_list_lock, flags);
+ list_add(&vptr->list, &velocity_dev_list);
+ spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
+ }
+#endif
+ velocity_nics++;
out:
return ret;
vptr->io_size = info->io_size;
vptr->num_txq = info->txqueue;
vptr->multicast_limit = MCAM_SIZE;
-
spin_lock_init(&vptr->lock);
- spin_lock_init(&vptr->xmit_lock);
+ INIT_LIST_HEAD(&vptr->list);
}
/**
pci_free_consistent(vptr->pdev, size, vptr->tx_bufs, vptr->tx_bufs_dma);
}
+static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
+{
+ struct mac_regs *regs = vptr->mac_regs;
+ int avail, dirty, unusable;
+
+ /*
+ * RD number must be equal to 4X per hardware spec
+ * (programming guide rev 1.20, p.13)
+ */
+ if (vptr->rd_filled < 4)
+ return;
+
+ wmb();
+
+ unusable = vptr->rd_filled & 0x0003;
+ dirty = vptr->rd_dirty - unusable;
+ for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {
+ dirty = (dirty > 0) ? dirty - 1 : vptr->options.numrx - 1;
+ vptr->rd_ring[dirty].rdesc0.owner = OWNED_BY_NIC;
+ }
+
+ writew(vptr->rd_filled & 0xfffc, ®s->RBRDU);
+ vptr->rd_filled = unusable;
+}
+
+static int velocity_rx_refill(struct velocity_info *vptr)
+{
+ int dirty = vptr->rd_dirty, done = 0, ret = 0;
+
+ do {
+ struct rx_desc *rd = vptr->rd_ring + dirty;
+
+ /* Fine for an all zero Rx desc at init time as well */
+ if (rd->rdesc0.owner == OWNED_BY_NIC)
+ break;
+
+ if (!vptr->rd_info[dirty].skb) {
+ ret = velocity_alloc_rx_buf(vptr, dirty);
+ if (ret < 0)
+ break;
+ }
+ done++;
+ dirty = (dirty < vptr->options.numrx - 1) ? dirty + 1 : 0;
+ } while (dirty != vptr->rd_curr);
+
+ if (done) {
+ vptr->rd_dirty = dirty;
+ vptr->rd_filled += done;
+ velocity_give_many_rx_descs(vptr);
+ }
+
+ return ret;
+}
+
/**
* velocity_init_rd_ring - set up receive ring
* @vptr: velocity to configure
static int velocity_init_rd_ring(struct velocity_info *vptr)
{
- int i, ret = -ENOMEM;
- struct rx_desc *rd;
- struct velocity_rd_info *rd_info;
+ int ret = -ENOMEM;
unsigned int rsize = sizeof(struct velocity_rd_info) *
vptr->options.numrx;
goto out;
memset(vptr->rd_info, 0, rsize);
- /* Init the RD ring entries */
- for (i = 0; i < vptr->options.numrx; i++) {
- rd = &(vptr->rd_ring[i]);
- rd_info = &(vptr->rd_info[i]);
+ vptr->rd_filled = vptr->rd_dirty = vptr->rd_curr = 0;
- ret = velocity_alloc_rx_buf(vptr, i);
- if (ret < 0) {
- VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
- "%s: failed to allocate RX buffer.\n",
- vptr->dev->name);
- velocity_free_rd_ring(vptr);
- goto out;
- }
- rd->rdesc0.owner = OWNED_BY_NIC;
+ ret = velocity_rx_refill(vptr);
+ if (ret < 0) {
+ VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
+ "%s: failed to allocate RX buffer.\n", vptr->dev->name);
+ velocity_free_rd_ring(vptr);
}
- vptr->rd_used = vptr->rd_curr = 0;
out:
return ret;
}
/**
- * velocity_free_rd_ring - set up receive ring
+ * velocity_free_rd_ring - free receive ring
* @vptr: velocity to clean up
*
* Free the receive buffers for each ring slot and any
for (i = 0; i < vptr->options.numrx; i++) {
struct velocity_rd_info *rd_info = &(vptr->rd_info[i]);
- if (!rd_info->skb_dma)
+ if (!rd_info->skb)
continue;
pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
PCI_DMA_FROMDEVICE);
for (i = 0; i < vptr->options.numtx; i++, curr += sizeof(struct tx_desc)) {
td = &(vptr->td_rings[j][i]);
td_info = &(vptr->td_infos[j][i]);
- td_info->buf = vptr->tx_bufs + (i + j) * PKT_BUF_SZ;
- td_info->buf_dma = vptr->tx_bufs_dma + (i + j) * PKT_BUF_SZ;
+ td_info->buf = vptr->tx_bufs +
+ (j * vptr->options.numtx + i) * PKT_BUF_SZ;
+ td_info->buf_dma = vptr->tx_bufs_dma +
+ (j * vptr->options.numtx + i) * PKT_BUF_SZ;
}
vptr->td_tail[j] = vptr->td_curr[j] = vptr->td_used[j] = 0;
}
static int velocity_rx_srv(struct velocity_info *vptr, int status)
{
- struct rx_desc *rd;
struct net_device_stats *stats = &vptr->stats;
- struct mac_regs * regs = vptr->mac_regs;
int rd_curr = vptr->rd_curr;
int works = 0;
- while (1) {
-
- rd = &(vptr->rd_ring[rd_curr]);
+ do {
+ struct rx_desc *rd = vptr->rd_ring + rd_curr;
- if ((vptr->rd_info[rd_curr]).skb == NULL) {
- if (velocity_alloc_rx_buf(vptr, rd_curr) < 0)
- break;
- }
-
- if (works++ > 15)
+ if (!vptr->rd_info[rd_curr].skb)
break;
if (rd->rdesc0.owner == OWNED_BY_NIC)
break;
+ rmb();
+
/*
* Don't drop CE or RL error frame although RXOK is off
- * FIXME: need to handle copybreak
*/
if ((rd->rdesc0.RSR & RSR_RXOK) || (!(rd->rdesc0.RSR & RSR_RXOK) && (rd->rdesc0.RSR & (RSR_CE | RSR_RL)))) {
- if (velocity_receive_frame(vptr, rd_curr) == 0) {
- if (velocity_alloc_rx_buf(vptr, rd_curr) < 0) {
- VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR "%s: can not allocate rx buf\n", vptr->dev->name);
- break;
- }
- } else {
+ if (velocity_receive_frame(vptr, rd_curr) < 0)
stats->rx_dropped++;
- }
} else {
if (rd->rdesc0.RSR & RSR_CRC)
stats->rx_crc_errors++;
rd->inten = 1;
- if (++vptr->rd_used >= 4) {
- int i, rd_prev = rd_curr;
- for (i = 0; i < 4; i++) {
- if (--rd_prev < 0)
- rd_prev = vptr->options.numrx - 1;
-
- rd = &(vptr->rd_ring[rd_prev]);
- rd->rdesc0.owner = OWNED_BY_NIC;
- }
- writew(4, &(regs->RBRDU));
- vptr->rd_used -= 4;
- }
-
vptr->dev->last_rx = jiffies;
rd_curr++;
if (rd_curr >= vptr->options.numrx)
rd_curr = 0;
- }
+ } while (++works <= 15);
+
vptr->rd_curr = rd_curr;
+
+ if (works > 0 && velocity_rx_refill(vptr) < 0) {
+ VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
+ "%s: rx buf allocation failure\n", vptr->dev->name);
+ }
+
VAR_USED(stats);
return works;
}
}
}
+/**
+ * velocity_rx_copy - in place Rx copy for small packets
+ * @rx_skb: network layer packet buffer candidate
+ * @pkt_size: received data size
+ * @rd: receive packet descriptor
+ * @dev: network device
+ *
+ * Replace the current skb that is scheduled for Rx processing by a
+ * shorter, immediatly allocated skb, if the received packet is small
+ * enough. This function returns a negative value if the received
+ * packet is too big or if memory is exhausted.
+ */
+static inline int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
+ struct velocity_info *vptr)
+{
+ int ret = -1;
+
+ if (pkt_size < rx_copybreak) {
+ struct sk_buff *new_skb;
+
+ new_skb = dev_alloc_skb(pkt_size + 2);
+ if (new_skb) {
+ new_skb->dev = vptr->dev;
+ new_skb->ip_summed = rx_skb[0]->ip_summed;
+
+ if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
+ skb_reserve(new_skb, 2);
+
+ memcpy(new_skb->data, rx_skb[0]->tail, pkt_size);
+ *rx_skb = new_skb;
+ ret = 0;
+ }
+
+ }
+ return ret;
+}
+
+/**
+ * velocity_iph_realign - IP header alignment
+ * @vptr: velocity we are handling
+ * @skb: network layer packet buffer
+ * @pkt_size: received data size
+ *
+ * Align IP header on a 2 bytes boundary. This behavior can be
+ * configured by the user.
+ */
+static inline void velocity_iph_realign(struct velocity_info *vptr,
+ struct sk_buff *skb, int pkt_size)
+{
+ /* FIXME - memmove ? */
+ if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
+ int i;
+
+ for (i = pkt_size; i >= 0; i--)
+ *(skb->data + i + 2) = *(skb->data + i);
+ skb_reserve(skb, 2);
+ }
+}
+
/**
* velocity_receive_frame - received packet processor
* @vptr: velocity we are handling
static int velocity_receive_frame(struct velocity_info *vptr, int idx)
{
+ void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
struct net_device_stats *stats = &vptr->stats;
struct velocity_rd_info *rd_info = &(vptr->rd_info[idx]);
struct rx_desc *rd = &(vptr->rd_ring[idx]);
+ int pkt_len = rd->rdesc0.len;
struct sk_buff *skb;
if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
skb = rd_info->skb;
skb->dev = vptr->dev;
- pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- rd_info->skb_dma = (dma_addr_t) NULL;
- rd_info->skb = NULL;
-
- /* FIXME - memmove ? */
- if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
- int i;
- for (i = rd->rdesc0.len + 4; i >= 0; i--)
- *(skb->data + i + 2) = *(skb->data + i);
- skb->data += 2;
- skb->tail += 2;
- }
-
- skb_put(skb, (rd->rdesc0.len - 4));
- skb->protocol = eth_type_trans(skb, skb->dev);
+ pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
+ vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
/*
* Drop frame not meeting IEEE 802.3
}
}
+ pci_action = pci_dma_sync_single_for_device;
+
velocity_rx_csum(rd, skb);
-
- /*
- * FIXME: need rx_copybreak handling
- */
- stats->rx_bytes += skb->len;
+ if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
+ velocity_iph_realign(vptr, skb, pkt_len);
+ pci_action = pci_unmap_single;
+ rd_info->skb = NULL;
+ }
+
+ pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx_buf_sz,
+ PCI_DMA_FROMDEVICE);
+
+ skb_put(skb, pkt_len - 4);
+ skb->protocol = eth_type_trans(skb, skb->dev);
+
+ stats->rx_bytes += pkt_len;
netif_rx(skb);
return 0;
}
-/**
- * ether_crc - ethernet CRC function
- *
- * Compute an ethernet CRC hash of the data block provided. This
- * is not performance optimised but is not needed in performance
- * critical code paths.
- *
- * FIXME: could we use shared code here ?
- */
-
-static inline u32 ether_crc(int length, unsigned char *data)
-{
- static unsigned const ethernet_polynomial = 0x04c11db7U;
-
- int crc = -1;
-
- while (--length >= 0) {
- unsigned char current_octet = *data++;
- int bit;
- for (bit = 0; bit < 8; bit++, current_octet >>= 1) {
- crc = (crc << 1) ^ ((crc < 0) ^ (current_octet & 1) ? ethernet_polynomial : 0);
- }
- }
- return crc;
-}
-
/**
* velocity_set_multi - filter list change callback
* @dev: network device
*/
static struct pci_driver velocity_driver = {
- name:VELOCITY_NAME,
- id_table:velocity_id_table,
- probe:velocity_found1,
- remove:velocity_remove1,
+ .name = VELOCITY_NAME,
+ .id_table = velocity_id_table,
+ .probe = velocity_found1,
+ .remove = __devexit_p(velocity_remove1),
#ifdef CONFIG_PM
- suspend:velocity_suspend,
- resume:velocity_resume,
+ .suspend = velocity_suspend,
+ .resume = velocity_resume,
#endif
};
static int __init velocity_init_module(void)
{
int ret;
- ret = pci_module_init(&velocity_driver);
-#ifdef CONFIG_PM
- register_inetaddr_notifier(&velocity_inetaddr_notifier);
-#endif
+ velocity_register_notifier();
+ ret = pci_module_init(&velocity_driver);
+ if (ret < 0)
+ velocity_unregister_notifier();
return ret;
}
static void __exit velocity_cleanup_module(void)
{
-#ifdef CONFIG_PM
- unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
-#endif
+ velocity_unregister_notifier();
pci_unregister_driver(&velocity_driver);
}
}
-static int velocity_suspend(struct pci_dev *pdev, u32 state)
-{
- struct velocity_info *vptr = pci_get_drvdata(pdev);
- unsigned long flags;
-
- if(!netif_running(vptr->dev))
- return 0;
-
- netif_device_detach(vptr->dev);
-
- spin_lock_irqsave(&vptr->lock, flags);
- pci_save_state(pdev, vptr->pci_state);
-#ifdef ETHTOOL_GWOL
- if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
- velocity_get_ip(vptr);
- velocity_save_context(vptr, &vptr->context);
- velocity_shutdown(vptr);
- velocity_set_wol(vptr);
- pci_enable_wake(pdev, 3, 1);
- pci_set_power_state(pdev, 3);
- } else {
- velocity_save_context(vptr, &vptr->context);
- velocity_shutdown(vptr);
- pci_disable_device(pdev);
- pci_set_power_state(pdev, state);
- }
-#else
- pci_set_power_state(pdev, state);
-#endif
- spin_unlock_irqrestore(&vptr->lock, flags);
- return 0;
-}
-
-static int velocity_resume(struct pci_dev *pdev)
-{
- struct velocity_info *vptr = pci_get_drvdata(pdev);
- unsigned long flags;
- int i;
-
- if(!netif_running(vptr->dev))
- return 0;
-
- pci_set_power_state(pdev, 0);
- pci_enable_wake(pdev, 0, 0);
- pci_restore_state(pdev, vptr->pci_state);
-
- mac_wol_reset(vptr->mac_regs);
-
- spin_lock_irqsave(&vptr->lock, flags);
- velocity_restore_context(vptr, &vptr->context);
- velocity_init_registers(vptr, VELOCITY_INIT_WOL);
- mac_disable_int(vptr->mac_regs);
-
- velocity_tx_srv(vptr, 0);
-
- for (i = 0; i < vptr->num_txq; i++) {
- if (vptr->td_used[i]) {
- mac_tx_queue_wake(vptr->mac_regs, i);
- }
- }
-
- mac_enable_int(vptr->mac_regs);
- spin_unlock_irqrestore(&vptr->lock, flags);
- netif_device_attach(vptr->dev);
-
- return 0;
-}
-
-static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
-{
- struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
- struct net_device *dev;
- struct velocity_info *vptr;
-
- if (ifa) {
- dev = ifa->ifa_dev->dev;
- vptr = dev->priv;
- velocity_get_ip(vptr);
- }
- return NOTIFY_DONE;
-}
-#endif
-
-/*
- * Purpose: Functions to set WOL.
- */
-
-const static unsigned short crc16_tab[256] = {
- 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
- 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
- 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
- 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
- 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
- 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
- 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
- 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
- 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
- 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
- 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
- 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
- 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
- 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
- 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
- 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
- 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
- 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
- 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
- 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
- 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
- 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
- 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
- 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
- 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
- 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
- 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
- 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
- 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
- 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
- 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
- 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
-};
-
-
-static u32 mask_pattern[2][4] = {
- {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
- {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
-};
-
-/**
- * ether_crc16 - compute ethernet CRC
- * @len: buffer length
- * @cp: buffer
- * @crc16: initial CRC
- *
- * Compute a CRC value for a block of data.
- * FIXME: can we use generic functions ?
- */
-
-static u16 ether_crc16(int len, u8 * cp, u16 crc16)
-{
- while (len--)
- crc16 = (crc16 >> 8) ^ crc16_tab[(crc16 ^ *cp++) & 0xff];
- return (crc16);
-}
-
-/**
- * bit_reverse - 16bit reverse
- * @data: 16bit data t reverse
- *
- * Reverse the order of a 16bit value and return the reversed bits
- */
-
-static u16 bit_reverse(u16 data)
-{
- u32 new = 0x00000000;
- int ii;
-
-
- for (ii = 0; ii < 16; ii++) {
- new |= ((u32) (data & 1) << (31 - ii));
- data >>= 1;
- }
-
- return (u16) (new >> 16);
-}
-
/**
* wol_calc_crc - WOL CRC
* @pattern: data pattern
* Compute the wake on lan crc hashes for the packet header
* we are interested in.
*/
-
+
u16 wol_calc_crc(int size, u8 * pattern, u8 *mask_pattern)
{
u16 crc = 0xFFFF;
continue;
}
mask >>= 1;
- crc = ether_crc16(1, &(pattern[i * 8 + j]), crc);
+ crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1);
}
}
/* Finally, invert the result once to get the correct data */
crc = ~crc;
- return bit_reverse(crc);
+ return bitreverse(crc) >> 16;
}
/**
*
* FIXME: check static buffer is safe here
*/
-
+
static int velocity_set_wol(struct velocity_info *vptr)
{
struct mac_regs * regs = vptr->mac_regs;
static u8 buf[256];
int i;
+ static u32 mask_pattern[2][4] = {
+ {0x00203000, 0x000003C0, 0x00000000, 0x0000000}, /* ARP */
+ {0xfffff000, 0xffffffff, 0xffffffff, 0x000ffff} /* Magic Packet */
+ };
+
writew(0xFFFF, ®s->WOLCRClr);
writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
memcpy(arp->ar_tip, vptr->ip_addr, 4);
- crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf, (u8 *) & mask_pattern[0][0]);
+ crc = wol_calc_crc((sizeof(struct arp_packet) + 7) / 8, buf,
+ (u8 *) & mask_pattern[0][0]);
writew(crc, ®s->PatternCRC[0]);
writew(WOLCR_ARP_EN, ®s->WOLCRSet);
return 0;
}
+static int velocity_suspend(struct pci_dev *pdev, u32 state)
+{
+ struct velocity_info *vptr = pci_get_drvdata(pdev);
+ unsigned long flags;
+
+ if(!netif_running(vptr->dev))
+ return 0;
+
+ netif_device_detach(vptr->dev);
+
+ spin_lock_irqsave(&vptr->lock, flags);
+ pci_save_state(pdev, vptr->pci_state);
+#ifdef ETHTOOL_GWOL
+ if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
+ velocity_get_ip(vptr);
+ velocity_save_context(vptr, &vptr->context);
+ velocity_shutdown(vptr);
+ velocity_set_wol(vptr);
+ pci_enable_wake(pdev, 3, 1);
+ pci_set_power_state(pdev, 3);
+ } else {
+ velocity_save_context(vptr, &vptr->context);
+ velocity_shutdown(vptr);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, state);
+ }
+#else
+ pci_set_power_state(pdev, state);
+#endif
+ spin_unlock_irqrestore(&vptr->lock, flags);
+ return 0;
+}
+
+static int velocity_resume(struct pci_dev *pdev)
+{
+ struct velocity_info *vptr = pci_get_drvdata(pdev);
+ unsigned long flags;
+ int i;
+
+ if(!netif_running(vptr->dev))
+ return 0;
+
+ pci_set_power_state(pdev, 0);
+ pci_enable_wake(pdev, 0, 0);
+ pci_restore_state(pdev, vptr->pci_state);
+
+ mac_wol_reset(vptr->mac_regs);
+
+ spin_lock_irqsave(&vptr->lock, flags);
+ velocity_restore_context(vptr, &vptr->context);
+ velocity_init_registers(vptr, VELOCITY_INIT_WOL);
+ mac_disable_int(vptr->mac_regs);
+
+ velocity_tx_srv(vptr, 0);
+
+ for (i = 0; i < vptr->num_txq; i++) {
+ if (vptr->td_used[i]) {
+ mac_tx_queue_wake(vptr->mac_regs, i);
+ }
+ }
+
+ mac_enable_int(vptr->mac_regs);
+ spin_unlock_irqrestore(&vptr->lock, flags);
+ netif_device_attach(vptr->dev);
+
+ return 0;
+}
+
+static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
+{
+ struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
+
+ if (ifa) {
+ struct net_device *dev = ifa->ifa_dev->dev;
+ struct velocity_info *vptr;
+ unsigned long flags;
+
+ spin_lock_irqsave(&velocity_dev_list_lock, flags);
+ list_for_each_entry(vptr, &velocity_dev_list, list) {
+ if (vptr->dev == dev) {
+ velocity_get_ip(vptr);
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&velocity_dev_list_lock, flags);
+ }
+ return NOTIFY_DONE;
+}
+#endif
git://git.onelab.eu / linux-2.6.git / blobdiff