leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'upstream-fixes-jgarzik' of git://lost.foo-projects.org/~ahkok/git/netdev-2.6 into upstream-fixes

Browse Source
This commit is contained in:
Jeff Garzik 2006-07-17 13:26:52 -04:00
commit 83b0fe818c
2 changed files with 29 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/e1000/e1000.h
View File

@ -110,6 +110,9 @@ struct e1000_adapter;
#define E1000_MIN_RXD 80
#define E1000_MAX_82544_RXD 4096
/* this is the size past which hardware will drop packets when setting LPE=0 */
#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
/* Supported Rx Buffer Sizes */
#define E1000_RXBUFFER_128 128 /* Used for packet split */
#define E1000_RXBUFFER_256 256 /* Used for packet split */

52
drivers/net/e1000/e1000_main.c
View File

@ -36,7 +36,7 @@ static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
#else
#define DRIVERNAPI "-NAPI"
#endif
#define DRV_VERSION "7.1.9-k2"DRIVERNAPI
#define DRV_VERSION "7.1.9-k4"DRIVERNAPI
char e1000_driver_version[] = DRV_VERSION;
static char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
@ -1068,7 +1068,7 @@ e1000_sw_init(struct e1000_adapter *adapter)
pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
adapter->rx_buffer_len = MAXIMUM_ETHERNET_FRAME_SIZE;
adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
adapter->rx_ps_bsize0 = E1000_RXBUFFER_128;
hw->max_frame_size = netdev->mtu +
ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
@ -3148,7 +3148,6 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
adapter->rx_buffer_len = E1000_RXBUFFER_16384;
/* adjust allocation if LPE protects us, and we aren't using SBP */
#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
if (!adapter->hw.tbi_compatibility_on &&
((max_frame == MAXIMUM_ETHERNET_FRAME_SIZE) ||
(max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
@ -3387,8 +3386,8 @@ e1000_intr(int irq, void *data, struct pt_regs *regs)
E1000_WRITE_REG(hw, IMC, ~0);
E1000_WRITE_FLUSH(hw);
}
if (likely(netif_rx_schedule_prep(&adapter->polling_netdev[0])))
__netif_rx_schedule(&adapter->polling_netdev[0]);
if (likely(netif_rx_schedule_prep(netdev)))
__netif_rx_schedule(netdev);
else
e1000_irq_enable(adapter);
#else
@ -3431,34 +3430,26 @@ e1000_clean(struct net_device *poll_dev, int *budget)
{
struct e1000_adapter *adapter;
int work_to_do = min(*budget, poll_dev->quota);
int tx_cleaned = 0, i = 0, work_done = 0;
int tx_cleaned = 0, work_done = 0;
/* Must NOT use netdev_priv macro here. */
adapter = poll_dev->priv;
/* Keep link state information with original netdev */
if (!netif_carrier_ok(adapter->netdev))
if (!netif_carrier_ok(poll_dev))
goto quit_polling;
while (poll_dev != &adapter->polling_netdev[i]) {
i++;
BUG_ON(i == adapter->num_rx_queues);
/* e1000_clean is called per-cpu. This lock protects
* tx_ring[0] from being cleaned by multiple cpus
* simultaneously. A failure obtaining the lock means
* tx_ring[0] is currently being cleaned anyway. */
if (spin_trylock(&adapter->tx_queue_lock)) {
tx_cleaned = e1000_clean_tx_irq(adapter,
&adapter->tx_ring[0]);
spin_unlock(&adapter->tx_queue_lock);
}
if (likely(adapter->num_tx_queues == 1)) {
/* e1000_clean is called per-cpu. This lock protects
* tx_ring[0] from being cleaned by multiple cpus
* simultaneously. A failure obtaining the lock means
* tx_ring[0] is currently being cleaned anyway. */
if (spin_trylock(&adapter->tx_queue_lock)) {
tx_cleaned = e1000_clean_tx_irq(adapter,
&adapter->tx_ring[0]);
spin_unlock(&adapter->tx_queue_lock);
}
} else
tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[i]);
adapter->clean_rx(adapter, &adapter->rx_ring[i],
adapter->clean_rx(adapter, &adapter->rx_ring[0],
&work_done, work_to_do);
*budget -= work_done;
@ -3466,7 +3457,7 @@ e1000_clean(struct net_device *poll_dev, int *budget)
/* If no Tx and not enough Rx work done, exit the polling mode */
if ((!tx_cleaned && (work_done == 0)) ||
!netif_running(adapter->netdev)) {
!netif_running(poll_dev)) {
quit_polling:
netif_rx_complete(poll_dev);
e1000_irq_enable(adapter);
@ -3681,6 +3672,9 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
length = le16_to_cpu(rx_desc->length);
/* adjust length to remove Ethernet CRC */
length -= 4;
if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
/* All receives must fit into a single buffer */
E1000_DBG("%s: Receive packet consumed multiple"
@ -3885,8 +3879,9 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
pci_dma_sync_single_for_device(pdev,
ps_page_dma->ps_page_dma[0],
PAGE_SIZE, PCI_DMA_FROMDEVICE);
/* remove the CRC */
l1 -= 4;
skb_put(skb, l1);
length += l1;
goto copydone;
} /* if */
}
@ -3905,6 +3900,10 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
skb->truesize += length;
}
/* strip the ethernet crc, problem is we're using pages now so
* this whole operation can get a little cpu intensive */
pskb_trim(skb, skb->len - 4);
copydone:
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
@ -4752,6 +4751,7 @@ static void
e1000_netpoll(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
disable_irq(adapter->pdev->irq);
e1000_intr(adapter->pdev->irq, netdev, NULL);
e1000_clean_tx_irq(adapter, adapter->tx_ring);