#include "e1000.h"
/* Change Log
- * 6.0.58 4/20/05
- * o Accepted ethtool cleanup patch from Stephen Hemminger
- * 6.0.44+ 2/15/05
- * o applied Anton's patch to resolve tx hang in hardware
- * o Applied Andrew Mortons patch - e1000 stops working after resume
+ * 6.3.9 12/16/2005
+ * o incorporate fix for recycled skbs from IBM LTC
+ * 6.3.7 11/18/2005
+ * o Honor eeprom setting for enabling/disabling Wake On Lan
+ * 6.3.5 11/17/2005
+ * o Fix memory leak in rx ring handling for PCI Express adapters
+ * 6.3.4 11/8/05
+ * o Patch from Jesper Juhl to remove redundant NULL checks for kfree
+ * 6.3.2 9/20/05
+ * o Render logic that sets/resets DRV_LOAD as inline functions to
+ * avoid code replication. If f/w is AMT then set DRV_LOAD only when
+ * network interface is open.
+ * o Handle DRV_LOAD set/reset in cases where AMT uses VLANs.
+ * o Adjust PBA partioning for Jumbo frames using MTU size and not
+ * rx_buffer_len
+ * 6.3.1 9/19/05
+ * o Use adapter->tx_timeout_factor in Tx Hung Detect logic
+ (e1000_clean_tx_irq)
+ * o Support for 8086:10B5 device (Quad Port)
+ * 6.2.14 9/15/05
+ * o In AMT enabled configurations, set/reset DRV_LOAD bit on interface
+ * open/close
+ * 6.2.13 9/14/05
+ * o Invoke e1000_check_mng_mode only for 8257x controllers since it
+ * accesses the FWSM that is not supported in other controllers
+ * 6.2.12 9/9/05
+ * o Add support for device id E1000_DEV_ID_82546GB_QUAD_COPPER
+ * o set RCTL:SECRC only for controllers newer than 82543.
+ * o When the n/w interface comes down reset DRV_LOAD bit to notify f/w.
+ * This code was moved from e1000_remove to e1000_close
+ * 6.2.10 9/6/05
+ * o Fix error in updating RDT in el1000_alloc_rx_buffers[_ps] -- one off.
+ * o Enable fc by default on 82573 controllers (do not read eeprom)
+ * o Fix rx_errors statistic not to include missed_packet_count
+ * o Fix rx_dropped statistic not to include missed_packet_count
+ (Padraig Brady)
+ * 6.2.9 8/30/05
+ * o Remove call to update statistics from the controller ib e1000_get_stats
+ * 6.2.8 8/30/05
+ * o Improved algorithm for rx buffer allocation/rdt update
+ * o Flow control watermarks relative to rx PBA size
+ * o Simplified 'Tx Hung' detect logic
+ * 6.2.7 8/17/05
+ * o Report rx buffer allocation failures and tx timeout counts in stats
+ * 6.2.6 8/16/05
+ * o Implement workaround for controller erratum -- linear non-tso packet
+ * following a TSO gets written back prematurely
+ * 6.2.5 8/15/05
+ * o Set netdev->tx_queue_len based on link speed/duplex settings.
+ * o Fix net_stats.rx_fifo_errors <p@draigBrady.com>
+ * o Do not power off PHY if SoL/IDER session is active
+ * 6.2.4 8/10/05
+ * o Fix loopback test setup/cleanup for 82571/3 controllers
+ * o Fix parsing of outgoing packets (e1000_transfer_dhcp_info) to treat
+ * all packets as raw
+ * o Prevent operations that will cause the PHY to be reset if SoL/IDER
+ * sessions are active and log a message
+ * 6.2.2 7/21/05
+ * o used fixed size descriptors for all MTU sizes, reduces memory load
+ * 6.1.2 4/13/05
+ * o Fixed ethtool diagnostics
+ * o Enabled flow control to take default eeprom settings
+ * o Added stats_lock around e1000_read_phy_reg commands to avoid concurrent
+ * calls, one from mii_ioctl and other from within update_stats while
+ * processing MIIREG ioctl.
*/
char e1000_driver_name[] = "e1000";
#else
#define DRIVERNAPI "-NAPI"
#endif
-#define DRV_VERSION "6.3.9-k2"DRIVERNAPI
+#define DRV_VERSION "6.3.9-k4"DRIVERNAPI
char e1000_driver_version[] = DRV_VERSION;
static char e1000_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
static inline void
e1000_irq_enable(struct e1000_adapter *adapter)
{
- if(likely(atomic_dec_and_test(&adapter->irq_sem))) {
+ if (likely(atomic_dec_and_test(&adapter->irq_sem))) {
E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK);
E1000_WRITE_FLUSH(&adapter->hw);
}
struct net_device *netdev = adapter->netdev;
uint16_t vid = adapter->hw.mng_cookie.vlan_id;
uint16_t old_vid = adapter->mng_vlan_id;
- if(adapter->vlgrp) {
- if(!adapter->vlgrp->vlan_devices[vid]) {
- if(adapter->hw.mng_cookie.status &
+ if (adapter->vlgrp) {
+ if (!adapter->vlgrp->vlan_devices[vid]) {
+ if (adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
e1000_vlan_rx_add_vid(netdev, vid);
adapter->mng_vlan_id = vid;
} else
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
-
- if((old_vid != (uint16_t)E1000_MNG_VLAN_NONE) &&
- (vid != old_vid) &&
+
+ if ((old_vid != (uint16_t)E1000_MNG_VLAN_NONE) &&
+ (vid != old_vid) &&
!adapter->vlgrp->vlan_devices[old_vid])
e1000_vlan_rx_kill_vid(netdev, old_vid);
}
/* hardware has been reset, we need to reload some things */
/* Reset the PHY if it was previously powered down */
- if(adapter->hw.media_type == e1000_media_type_copper) {
+ if (adapter->hw.media_type == e1000_media_type_copper) {
uint16_t mii_reg;
e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &mii_reg);
- if(mii_reg & MII_CR_POWER_DOWN)
+ if (mii_reg & MII_CR_POWER_DOWN)
e1000_phy_reset(&adapter->hw);
}
* next_to_use != next_to_clean */
for (i = 0; i < adapter->num_rx_queues; i++) {
struct e1000_rx_ring *ring = &adapter->rx_ring[i];
- adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
+ adapter->alloc_rx_buf(adapter, ring,
+ E1000_DESC_UNUSED(ring));
}
#ifdef CONFIG_PCI_MSI
- if(adapter->hw.mac_type > e1000_82547_rev_2) {
+ if (adapter->hw.mac_type > e1000_82547_rev_2) {
adapter->have_msi = TRUE;
- if((err = pci_enable_msi(adapter->pdev))) {
+ if ((err = pci_enable_msi(adapter->pdev))) {
DPRINTK(PROBE, ERR,
"Unable to allocate MSI interrupt Error: %d\n", err);
adapter->have_msi = FALSE;
}
}
#endif
- if((err = request_irq(adapter->pdev->irq, &e1000_intr,
+ if ((err = request_irq(adapter->pdev->irq, &e1000_intr,
SA_SHIRQ | SA_SAMPLE_RANDOM,
netdev->name, netdev))) {
DPRINTK(PROBE, ERR,
#endif
free_irq(adapter->pdev->irq, netdev);
#ifdef CONFIG_PCI_MSI
- if(adapter->hw.mac_type > e1000_82547_rev_2 &&
+ if (adapter->hw.mac_type > e1000_82547_rev_2 &&
adapter->have_msi == TRUE)
pci_disable_msi(adapter->pdev);
#endif
break;
}
- if((adapter->hw.mac_type != e1000_82573) &&
+ if ((adapter->hw.mac_type != e1000_82573) &&
(adapter->netdev->mtu > E1000_RXBUFFER_8192))
pba -= 8; /* allocate more FIFO for Tx */
- if(adapter->hw.mac_type == e1000_82547) {
+ if (adapter->hw.mac_type == e1000_82547) {
adapter->tx_fifo_head = 0;
adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
adapter->tx_fifo_size =
/* Allow time for pending master requests to run */
e1000_reset_hw(&adapter->hw);
- if(adapter->hw.mac_type >= e1000_82544)
+ if (adapter->hw.mac_type >= e1000_82544)
E1000_WRITE_REG(&adapter->hw, WUC, 0);
- if(e1000_init_hw(&adapter->hw))
+ if (e1000_init_hw(&adapter->hw))
DPRINTK(PROBE, ERR, "Hardware Error\n");
e1000_update_mng_vlan(adapter);
/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
int i, err, pci_using_dac;
uint16_t eeprom_data;
uint16_t eeprom_apme_mask = E1000_EEPROM_APME;
- if((err = pci_enable_device(pdev)))
+ if ((err = pci_enable_device(pdev)))
return err;
- if(!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
+ if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
pci_using_dac = 1;
} else {
- if((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
+ if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
E1000_ERR("No usable DMA configuration, aborting\n");
return err;
}
pci_using_dac = 0;
}
- if((err = pci_request_regions(pdev, e1000_driver_name)))
+ if ((err = pci_request_regions(pdev, e1000_driver_name)))
return err;
pci_set_master(pdev);
netdev = alloc_etherdev(sizeof(struct e1000_adapter));
- if(!netdev) {
+ if (!netdev) {
err = -ENOMEM;
goto err_alloc_etherdev;
}
mmio_len = pci_resource_len(pdev, BAR_0);
adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
- if(!adapter->hw.hw_addr) {
+ if (!adapter->hw.hw_addr) {
err = -EIO;
goto err_ioremap;
}
- for(i = BAR_1; i <= BAR_5; i++) {
- if(pci_resource_len(pdev, i) == 0)
+ for (i = BAR_1; i <= BAR_5; i++) {
+ if (pci_resource_len(pdev, i) == 0)
continue;
- if(pci_resource_flags(pdev, i) & IORESOURCE_IO) {
+ if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
adapter->hw.io_base = pci_resource_start(pdev, i);
break;
}
/* setup the private structure */
- if((err = e1000_sw_init(adapter)))
+ if ((err = e1000_sw_init(adapter)))
goto err_sw_init;
- if((err = e1000_check_phy_reset_block(&adapter->hw)))
+ if ((err = e1000_check_phy_reset_block(&adapter->hw)))
DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n");
- if(adapter->hw.mac_type >= e1000_82543) {
+ if (adapter->hw.mac_type >= e1000_82543) {
netdev->features = NETIF_F_SG |
NETIF_F_HW_CSUM |
NETIF_F_HW_VLAN_TX |
}
#ifdef NETIF_F_TSO
- if((adapter->hw.mac_type >= e1000_82544) &&
+ if ((adapter->hw.mac_type >= e1000_82544) &&
(adapter->hw.mac_type != e1000_82547))
netdev->features |= NETIF_F_TSO;
#ifdef NETIF_F_TSO_IPV6
- if(adapter->hw.mac_type > e1000_82547_rev_2)
+ if (adapter->hw.mac_type > e1000_82547_rev_2)
netdev->features |= NETIF_F_TSO_IPV6;
#endif
#endif
- if(pci_using_dac)
+ if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
/* hard_start_xmit is safe against parallel locking */
adapter->en_mng_pt = e1000_enable_mng_pass_thru(&adapter->hw);
- /* before reading the EEPROM, reset the controller to
+ /* before reading the EEPROM, reset the controller to
* put the device in a known good starting state */
-
+
e1000_reset_hw(&adapter->hw);
/* make sure the EEPROM is good */
- if(e1000_validate_eeprom_checksum(&adapter->hw) < 0) {
+ if (e1000_validate_eeprom_checksum(&adapter->hw) < 0) {
DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n");
err = -EIO;
goto err_eeprom;
/* copy the MAC address out of the EEPROM */
- if(e1000_read_mac_addr(&adapter->hw))
+ if (e1000_read_mac_addr(&adapter->hw))
DPRINTK(PROBE, ERR, "EEPROM Read Error\n");
memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
memcpy(netdev->perm_addr, adapter->hw.mac_addr, netdev->addr_len);
- if(!is_valid_ether_addr(netdev->perm_addr)) {
+ if (!is_valid_ether_addr(netdev->perm_addr)) {
DPRINTK(PROBE, ERR, "Invalid MAC Address\n");
err = -EIO;
goto err_eeprom;
* enable the ACPI Magic Packet filter
*/
- switch(adapter->hw.mac_type) {
+ switch (adapter->hw.mac_type) {
case e1000_82542_rev2_0:
case e1000_82542_rev2_1:
case e1000_82543:
case e1000_82546:
case e1000_82546_rev_3:
case e1000_82571:
- if(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_FUNC_1){
+ if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_FUNC_1){
e1000_read_eeprom(&adapter->hw,
EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
break;
EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
break;
}
- if(eeprom_data & eeprom_apme_mask)
+ if (eeprom_data & eeprom_apme_mask)
adapter->wol |= E1000_WUFC_MAG;
+ /* print bus type/speed/width info */
+ {
+ struct e1000_hw *hw = &adapter->hw;
+ DPRINTK(PROBE, INFO, "(PCI%s:%s:%s) ",
+ ((hw->bus_type == e1000_bus_type_pcix) ? "-X" :
+ (hw->bus_type == e1000_bus_type_pci_express ? " Express":"")),
+ ((hw->bus_speed == e1000_bus_speed_2500) ? "2.5Gb/s" :
+ (hw->bus_speed == e1000_bus_speed_133) ? "133MHz" :
+ (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" :
+ (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" :
+ (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"),
+ ((hw->bus_width == e1000_bus_width_64) ? "64-bit" :
+ (hw->bus_width == e1000_bus_width_pciex_4) ? "Width x4" :
+ (hw->bus_width == e1000_bus_width_pciex_1) ? "Width x1" :
+ "32-bit"));
+ }
+
+ for (i = 0; i < 6; i++)
+ printk("%2.2x%c", netdev->dev_addr[i], i == 5 ? '\n' : ':');
+
/* reset the hardware with the new settings */
e1000_reset(adapter);
e1000_get_hw_control(adapter);
strcpy(netdev->name, "eth%d");
- if((err = register_netdev(netdev)))
+ if ((err = register_netdev(netdev)))
goto err_register;
DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n");
flush_scheduled_work();
- if(adapter->hw.mac_type >= e1000_82540 &&
+ if (adapter->hw.mac_type >= e1000_82540 &&
adapter->hw.media_type == e1000_media_type_copper) {
manc = E1000_READ_REG(&adapter->hw, MANC);
- if(manc & E1000_MANC_SMBUS_EN) {
+ if (manc & E1000_MANC_SMBUS_EN) {
manc |= E1000_MANC_ARP_EN;
E1000_WRITE_REG(&adapter->hw, MANC, manc);
}
__dev_put(&adapter->polling_netdev[i]);
#endif
- if(!e1000_check_phy_reset_block(&adapter->hw))
+ if (!e1000_check_phy_reset_block(&adapter->hw))
e1000_phy_hw_reset(&adapter->hw);
kfree(adapter->tx_ring);
/* identify the MAC */
- if(e1000_set_mac_type(hw)) {
+ if (e1000_set_mac_type(hw)) {
DPRINTK(PROBE, ERR, "Unknown MAC Type\n");
return -EIO;
}
/* initialize eeprom parameters */
- if(e1000_init_eeprom_params(hw)) {
+ if (e1000_init_eeprom_params(hw)) {
E1000_ERR("EEPROM initialization failed\n");
return -EIO;
}
- switch(hw->mac_type) {
+ switch (hw->mac_type) {
default:
break;
case e1000_82541:
/* Copper options */
- if(hw->media_type == e1000_media_type_copper) {
+ if (hw->media_type == e1000_media_type_copper) {
hw->mdix = AUTO_ALL_MODES;
hw->disable_polarity_correction = FALSE;
hw->master_slave = E1000_MASTER_SLAVE;
if ((err = e1000_setup_all_rx_resources(adapter)))
goto err_setup_rx;
- if((err = e1000_up(adapter)))
+ if ((err = e1000_up(adapter)))
goto err_up;
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
- if((adapter->hw.mng_cookie.status &
+ if ((adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
e1000_update_mng_vlan(adapter);
}
e1000_free_all_tx_resources(adapter);
e1000_free_all_rx_resources(adapter);
- if((adapter->hw.mng_cookie.status &
+ if ((adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
}
size = sizeof(struct e1000_buffer) * txdr->count;
txdr->buffer_info = vmalloc_node(size, pcibus_to_node(pdev->bus));
- if(!txdr->buffer_info) {
+ if (!txdr->buffer_info) {
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the transmit descriptor ring\n");
return -ENOMEM;
E1000_ROUNDUP(txdr->size, 4096);
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- if(!txdr->desc) {
+ if (!txdr->desc) {
setup_tx_desc_die:
vfree(txdr->buffer_info);
DPRINTK(PROBE, ERR,
"at %p\n", txdr->size, txdr->desc);
/* Try again, without freeing the previous */
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- if(!txdr->desc) {
/* Failed allocation, critical failure */
+ if (!txdr->desc) {
pci_free_consistent(pdev, txdr->size, olddesc, olddma);
goto setup_tx_desc_die;
}
size = sizeof(struct e1000_ps_page) * rxdr->count;
rxdr->ps_page = kmalloc(size, GFP_KERNEL);
- if(!rxdr->ps_page) {
+ if (!rxdr->ps_page) {
vfree(rxdr->buffer_info);
DPRINTK(PROBE, ERR,
"Unable to allocate memory for the receive descriptor ring\n");
size = sizeof(struct e1000_ps_page_dma) * rxdr->count;
rxdr->ps_page_dma = kmalloc(size, GFP_KERNEL);
- if(!rxdr->ps_page_dma) {
+ if (!rxdr->ps_page_dma) {
vfree(rxdr->buffer_info);
kfree(rxdr->ps_page);
DPRINTK(PROBE, ERR,
}
memset(rxdr->ps_page_dma, 0, size);
- if(adapter->hw.mac_type <= e1000_82547_rev_2)
+ if (adapter->hw.mac_type <= e1000_82547_rev_2)
desc_len = sizeof(struct e1000_rx_desc);
else
desc_len = sizeof(union e1000_rx_desc_packet_split);
rxdr->next_to_clean = 0;
rxdr->next_to_use = 0;
- rxdr->rx_skb_top = NULL;
- rxdr->rx_skb_prev = NULL;
return 0;
}
{
uint32_t rctl, rfctl;
uint32_t psrctl = 0;
-#ifdef CONFIG_E1000_PACKET_SPLIT
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
uint32_t pages = 0;
#endif
rctl |= E1000_RCTL_LPE;
/* Setup buffer sizes */
- if(adapter->hw.mac_type >= e1000_82571) {
+ if (adapter->hw.mac_type >= e1000_82571) {
/* We can now specify buffers in 1K increments.
* BSIZE and BSEX are ignored in this case. */
rctl |= adapter->rx_buffer_len << 0x11;
}
}
-#ifdef CONFIG_E1000_PACKET_SPLIT
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
/* 82571 and greater support packet-split where the protocol
* header is placed in skb->data and the packet data is
* placed in pages hanging off of skb_shinfo(skb)->nr_frags.
E1000_WRITE_REG(&adapter->hw, RFCTL, rfctl);
rctl |= E1000_RCTL_DTYP_PS | E1000_RCTL_SECRC;
-
+
psrctl |= adapter->rx_ps_bsize0 >>
E1000_PSRCTL_BSIZE0_SHIFT;
if (hw->mac_type >= e1000_82540) {
E1000_WRITE_REG(hw, RADV, adapter->rx_abs_int_delay);
- if(adapter->itr > 1)
+ if (adapter->itr > 1)
E1000_WRITE_REG(hw, ITR,
1000000000 / (adapter->itr * 256));
}
/* Enable 82543 Receive Checksum Offload for TCP and UDP */
if (hw->mac_type >= e1000_82543) {
rxcsum = E1000_READ_REG(hw, RXCSUM);
- if(adapter->rx_csum == TRUE) {
+ if (adapter->rx_csum == TRUE) {
rxcsum |= E1000_RXCSUM_TUOFL;
/* Enable 82571 IPv4 payload checksum for UDP fragments
* Must be used in conjunction with packet-split. */
- if ((hw->mac_type >= e1000_82571) &&
- (adapter->rx_ps_pages)) {
+ if ((hw->mac_type >= e1000_82571) &&
+ (adapter->rx_ps_pages)) {
rxcsum |= E1000_RXCSUM_IPPCSE;
}
} else {
e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
struct e1000_buffer *buffer_info)
{
- if(buffer_info->dma) {
+ if (buffer_info->dma) {
pci_unmap_page(adapter->pdev,
buffer_info->dma,
buffer_info->length,
PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
}
- if(buffer_info->skb) {
+ if (buffer_info->skb)
dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
+ memset(buffer_info, 0, sizeof(struct e1000_buffer));
}
/**
/* Free all the Tx ring sk_buffs */
- for(i = 0; i < tx_ring->count; i++) {
+ for (i = 0; i < tx_ring->count; i++) {
buffer_info = &tx_ring->buffer_info[i];
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
}
unsigned int i, j;
/* Free all the Rx ring sk_buffs */
-
- for(i = 0; i < rx_ring->count; i++) {
+ for (i = 0; i < rx_ring->count; i++) {
buffer_info = &rx_ring->buffer_info[i];
- if(buffer_info->skb) {
- ps_page = &rx_ring->ps_page[i];
- ps_page_dma = &rx_ring->ps_page_dma[i];
+ if (buffer_info->skb) {
pci_unmap_single(pdev,
buffer_info->dma,
buffer_info->length,
}
}
- /* there also may be some cached data in our adapter */
- if (rx_ring->rx_skb_top) {
- dev_kfree_skb(rx_ring->rx_skb_top);
-
- /* rx_skb_prev will be wiped out by rx_skb_top */
- rx_ring->rx_skb_top = NULL;
- rx_ring->rx_skb_prev = NULL;
- }
-
-
size = sizeof(struct e1000_buffer) * rx_ring->count;
memset(rx_ring->buffer_info, 0, size);
size = sizeof(struct e1000_ps_page) * rx_ring->count;
E1000_WRITE_FLUSH(&adapter->hw);
mdelay(5);
- if(netif_running(netdev))
+ if (netif_running(netdev))
e1000_clean_all_rx_rings(adapter);
}
E1000_WRITE_FLUSH(&adapter->hw);
mdelay(5);
- if(adapter->hw.pci_cmd_word & PCI_COMMAND_INVALIDATE)
+ if (adapter->hw.pci_cmd_word & PCI_COMMAND_INVALIDATE)
e1000_pci_set_mwi(&adapter->hw);
- if(netif_running(netdev)) {
- e1000_configure_rx(adapter);
+ if (netif_running(netdev)) {
/* No need to loop, because 82542 supports only 1 queue */
struct e1000_rx_ring *ring = &adapter->rx_ring[0];
+ e1000_configure_rx(adapter);
adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
}
}
struct e1000_adapter *adapter = netdev_priv(netdev);
struct sockaddr *addr = p;
- if(!is_valid_ether_addr(addr->sa_data))
+ if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
/* 82542 2.0 needs to be in reset to write receive address registers */
- if(adapter->hw.mac_type == e1000_82542_rev2_0)
+ if (adapter->hw.mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter);
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
/* activate the work around */
adapter->hw.laa_is_present = 1;
- /* Hold a copy of the LAA in RAR[14] This is done so that
- * between the time RAR[0] gets clobbered and the time it
- * gets fixed (in e1000_watchdog), the actual LAA is in one
+ /* Hold a copy of the LAA in RAR[14] This is done so that
+ * between the time RAR[0] gets clobbered and the time it
+ * gets fixed (in e1000_watchdog), the actual LAA is in one
* of the RARs and no incoming packets directed to this port
- * are dropped. Eventaully the LAA will be in RAR[0] and
+ * are dropped. Eventaully the LAA will be in RAR[0] and
* RAR[14] */
- e1000_rar_set(&adapter->hw, adapter->hw.mac_addr,
+ e1000_rar_set(&adapter->hw, adapter->hw.mac_addr,
E1000_RAR_ENTRIES - 1);
}
- if(adapter->hw.mac_type == e1000_82542_rev2_0)
+ if (adapter->hw.mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
return 0;
rctl = E1000_READ_REG(hw, RCTL);
- if(netdev->flags & IFF_PROMISC) {
+ if (netdev->flags & IFF_PROMISC) {
rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
- } else if(netdev->flags & IFF_ALLMULTI) {
+ } else if (netdev->flags & IFF_ALLMULTI) {
rctl |= E1000_RCTL_MPE;
rctl &= ~E1000_RCTL_UPE;
} else {
/* 82542 2.0 needs to be in reset to write receive address registers */
- if(hw->mac_type == e1000_82542_rev2_0)
+ if (hw->mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter);
/* load the first 14 multicast address into the exact filters 1-14
*/
mc_ptr = netdev->mc_list;
- for(i = 1; i < rar_entries; i++) {
+ for (i = 1; i < rar_entries; i++) {
if (mc_ptr) {
e1000_rar_set(hw, mc_ptr->dmi_addr, i);
mc_ptr = mc_ptr->next;
/* clear the old settings from the multicast hash table */
- for(i = 0; i < E1000_NUM_MTA_REGISTERS; i++)
+ for (i = 0; i < E1000_NUM_MTA_REGISTERS; i++)
E1000_WRITE_REG_ARRAY(hw, MTA, i, 0);
/* load any remaining addresses into the hash table */
- for(; mc_ptr; mc_ptr = mc_ptr->next) {
+ for (; mc_ptr; mc_ptr = mc_ptr->next) {
hash_value = e1000_hash_mc_addr(hw, mc_ptr->dmi_addr);
e1000_mta_set(hw, hash_value);
}
- if(hw->mac_type == e1000_82542_rev2_0)
+ if (hw->mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
}
struct net_device *netdev = adapter->netdev;
uint32_t tctl;
- if(atomic_read(&adapter->tx_fifo_stall)) {
- if((E1000_READ_REG(&adapter->hw, TDT) ==
+ if (atomic_read(&adapter->tx_fifo_stall)) {
+ if ((E1000_READ_REG(&adapter->hw, TDT) ==
E1000_READ_REG(&adapter->hw, TDH)) &&
(E1000_READ_REG(&adapter->hw, TDFT) ==
E1000_READ_REG(&adapter->hw, TDFH)) &&
e1000_check_for_link(&adapter->hw);
if (adapter->hw.mac_type == e1000_82573) {
e1000_enable_tx_pkt_filtering(&adapter->hw);
- if(adapter->mng_vlan_id != adapter->hw.mng_cookie.vlan_id)
+ if (adapter->mng_vlan_id != adapter->hw.mng_cookie.vlan_id)
e1000_update_mng_vlan(adapter);
- }
+ }
- if((adapter->hw.media_type == e1000_media_type_internal_serdes) &&
+ if ((adapter->hw.media_type == e1000_media_type_internal_serdes) &&
!(E1000_READ_REG(&adapter->hw, TXCW) & E1000_TXCW_ANE))
link = !adapter->hw.serdes_link_down;
else
link = E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU;
- if(link) {
- if(!netif_carrier_ok(netdev)) {
+ if (link) {
+ if (!netif_carrier_ok(netdev)) {
e1000_get_speed_and_duplex(&adapter->hw,
&adapter->link_speed,
&adapter->link_duplex);
adapter->smartspeed = 0;
}
} else {
- if(netif_carrier_ok(netdev)) {
+ if (netif_carrier_ok(netdev)) {
adapter->link_speed = 0;
adapter->link_duplex = 0;
DPRINTK(LINK, INFO, "NIC Link is Down\n");
}
/* Dynamic mode for Interrupt Throttle Rate (ITR) */
- if(adapter->hw.mac_type >= e1000_82540 && adapter->itr == 1) {
+ if (adapter->hw.mac_type >= e1000_82540 && adapter->itr == 1) {
/* Symmetric Tx/Rx gets a reduced ITR=2000; Total
* asymmetrical Tx or Rx gets ITR=8000; everyone
* else is between 2000-8000. */
uint32_t goc = (adapter->gotcl + adapter->gorcl) / 10000;
- uint32_t dif = (adapter->gotcl > adapter->gorcl ?
+ uint32_t dif = (adapter->gotcl > adapter->gorcl ?
adapter->gotcl - adapter->gorcl :
adapter->gorcl - adapter->gotcl) / 10000;
uint32_t itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000;
/* Force detection of hung controller every watchdog period */
adapter->detect_tx_hung = TRUE;
- /* With 82571 controllers, LAA may be overwritten due to controller
+ /* With 82571 controllers, LAA may be overwritten due to controller
* reset from the other port. Set the appropriate LAA in RAR[0] */
if (adapter->hw.mac_type == e1000_82571 && adapter->hw.laa_is_present)
e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
uint8_t ipcss, ipcso, tucss, tucso, hdr_len;
int err;
- if(skb_shinfo(skb)->tso_size) {
+ if (skb_shinfo(skb)->tso_size) {
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (err)
hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
mss = skb_shinfo(skb)->tso_size;
- if(skb->protocol == ntohs(ETH_P_IP)) {
+ if (skb->protocol == ntohs(ETH_P_IP)) {
skb->nh.iph->tot_len = 0;
skb->nh.iph->check = 0;
skb->h.th->check =
cmd_length = E1000_TXD_CMD_IP;
ipcse = skb->h.raw - skb->data - 1;
#ifdef NETIF_F_TSO_IPV6
- } else if(skb->protocol == ntohs(ETH_P_IPV6)) {
+ } else if (skb->protocol == ntohs(ETH_P_IPV6)) {
skb->nh.ipv6h->payload_len = 0;
skb->h.th->check =
~csum_ipv6_magic(&skb->nh.ipv6h->saddr,
if (++i == tx_ring->count) i = 0;
tx_ring->next_to_use = i;
- return 1;
+ return TRUE;
}
#endif
- return 0;
+ return FALSE;
}
static inline boolean_t
unsigned int i;
uint8_t css;
- if(likely(skb->ip_summed == CHECKSUM_HW)) {
+ if (likely(skb->ip_summed == CHECKSUM_HW)) {
css = skb->h.raw - skb->data;
i = tx_ring->next_to_use;
i = tx_ring->next_to_use;
- while(len) {
+ while (len) {
buffer_info = &tx_ring->buffer_info[i];
size = min(len, max_per_txd);
#ifdef NETIF_F_TSO
/* Workaround for premature desc write-backs
* in TSO mode. Append 4-byte sentinel desc */
- if(unlikely(mss && !nr_frags && size == len && size > 8))
+ if (unlikely(mss && !nr_frags && size == len && size > 8))
size -= 4;
#endif
/* work-around for errata 10 and it applies
* The fix is to make sure that the first descriptor of a
* packet is smaller than 2048 - 16 - 16 (or 2016) bytes
*/
- if(unlikely((adapter->hw.bus_type == e1000_bus_type_pcix) &&
+ if (unlikely((adapter->hw.bus_type == e1000_bus_type_pcix) &&
(size > 2015) && count == 0))
size = 2015;
-
+
/* Workaround for potential 82544 hang in PCI-X. Avoid
* terminating buffers within evenly-aligned dwords. */
- if(unlikely(adapter->pcix_82544 &&
+ if (unlikely(adapter->pcix_82544 &&
!((unsigned long)(skb->data + offset + size - 1) & 4) &&
size > 4))
size -= 4;
len -= size;
offset += size;
count++;
- if(unlikely(++i == tx_ring->count)) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
- for(f = 0; f < nr_frags; f++) {
+ for (f = 0; f < nr_frags; f++) {
struct skb_frag_struct *frag;
frag = &skb_shinfo(skb)->frags[f];
len = frag->size;
offset = frag->page_offset;
- while(len) {
+ while (len) {
buffer_info = &tx_ring->buffer_info[i];
size = min(len, max_per_txd);
#ifdef NETIF_F_TSO
/* Workaround for premature desc write-backs
* in TSO mode. Append 4-byte sentinel desc */
- if(unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
+ if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
size -= 4;
#endif
/* Workaround for potential 82544 hang in PCI-X.
* Avoid terminating buffers within evenly-aligned
* dwords. */
- if(unlikely(adapter->pcix_82544 &&
+ if (unlikely(adapter->pcix_82544 &&
!((unsigned long)(frag->page+offset+size-1) & 4) &&
size > 4))
size -= 4;
len -= size;
offset += size;
count++;
- if(unlikely(++i == tx_ring->count)) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
}
uint32_t txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
unsigned int i;
- if(likely(tx_flags & E1000_TX_FLAGS_TSO)) {
+ if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
E1000_TXD_CMD_TSE;
txd_upper |= E1000_TXD_POPTS_TXSM << 8;
- if(likely(tx_flags & E1000_TX_FLAGS_IPV4))
+ if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
txd_upper |= E1000_TXD_POPTS_IXSM << 8;
}
- if(likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
+ if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
txd_upper |= E1000_TXD_POPTS_TXSM << 8;
}
- if(unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
+ if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
txd_lower |= E1000_TXD_CMD_VLE;
txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
}
i = tx_ring->next_to_use;
- while(count--) {
+ while (count--) {
buffer_info = &tx_ring->buffer_info[i];
tx_desc = E1000_TX_DESC(*tx_ring, i);
tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
tx_desc->lower.data =
cpu_to_le32(txd_lower | buffer_info->length);
tx_desc->upper.data = cpu_to_le32(txd_upper);
- if(unlikely(++i == tx_ring->count)) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
E1000_ROUNDUP(skb_fifo_len, E1000_FIFO_HDR);
- if(adapter->link_duplex != HALF_DUPLEX)
+ if (adapter->link_duplex != HALF_DUPLEX)
goto no_fifo_stall_required;
- if(atomic_read(&adapter->tx_fifo_stall))
+ if (atomic_read(&adapter->tx_fifo_stall))
return 1;
- if(skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
+ if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
atomic_set(&adapter->tx_fifo_stall, 1);
return 1;
}
no_fifo_stall_required:
adapter->tx_fifo_head += skb_fifo_len;
- if(adapter->tx_fifo_head >= adapter->tx_fifo_size)
+ if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
adapter->tx_fifo_head -= adapter->tx_fifo_size;
return 0;
}
{
struct e1000_hw *hw = &adapter->hw;
uint16_t length, offset;
- if(vlan_tx_tag_present(skb)) {
- if(!((vlan_tx_tag_get(skb) == adapter->hw.mng_cookie.vlan_id) &&
+ if (vlan_tx_tag_present(skb)) {
+ if (!((vlan_tx_tag_get(skb) == adapter->hw.mng_cookie.vlan_id) &&
( adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) )
return 0;
}
- if ((skb->len > MINIMUM_DHCP_PACKET_SIZE) && (!skb->protocol)) {
+ if ((skb->len > MINIMUM_DHCP_PACKET_SIZE) && (!skb->protocol)) {
struct ethhdr *eth = (struct ethhdr *) skb->data;
- if((htons(ETH_P_IP) == eth->h_proto)) {
- const struct iphdr *ip =
+ if ((htons(ETH_P_IP) == eth->h_proto)) {
+ const struct iphdr *ip =
(struct iphdr *)((uint8_t *)skb->data+14);
- if(IPPROTO_UDP == ip->protocol) {
- struct udphdr *udp =
- (struct udphdr *)((uint8_t *)ip +
+ if (IPPROTO_UDP == ip->protocol) {
+ struct udphdr *udp =
+ (struct udphdr *)((uint8_t *)ip +
(ip->ihl << 2));
- if(ntohs(udp->dest) == 67) {
+ if (ntohs(udp->dest) == 67) {
offset = (uint8_t *)udp + 8 - skb->data;
length = skb->len - offset;
return e1000_mng_write_dhcp_info(hw,
- (uint8_t *)udp + 8,
+ (uint8_t *)udp + 8,
length);
}
}
unsigned int nr_frags = 0;
unsigned int mss = 0;
int count = 0;
- int tso;
+ int tso;
unsigned int f;
len -= skb->data_len;
* 4 = ceil(buffer len/mss). To make sure we don't
* overrun the FIFO, adjust the max buffer len if mss
* drops. */
- if(mss) {
+ if (mss) {
uint8_t hdr_len;
max_per_txd = min(mss << 2, max_per_txd);
max_txd_pwr = fls(max_per_txd) - 1;
if (!__pskb_pull_tail(skb, pull_size)) {
printk(KERN_ERR "__pskb_pull_tail failed.\n");
dev_kfree_skb_any(skb);
- return -EFAULT;
+ return NETDEV_TX_OK;
}
len = skb->len - skb->data_len;
}
}
- if((mss) || (skb->ip_summed == CHECKSUM_HW))
/* reserve a descriptor for the offload context */
+ if ((mss) || (skb->ip_summed == CHECKSUM_HW))
count++;
count++;
#else
- if(skb->ip_summed == CHECKSUM_HW)
+ if (skb->ip_summed == CHECKSUM_HW)
count++;
#endif
count += TXD_USE_COUNT(len, max_txd_pwr);
- if(adapter->pcix_82544)
+ if (adapter->pcix_82544)
count++;
- /* work-around for errata 10 and it applies to all controllers
+ /* work-around for errata 10 and it applies to all controllers
* in PCI-X mode, so add one more descriptor to the count
*/
- if(unlikely((adapter->hw.bus_type == e1000_bus_type_pcix) &&
+ if (unlikely((adapter->hw.bus_type == e1000_bus_type_pcix) &&
(len > 2015)))
count++;
nr_frags = skb_shinfo(skb)->nr_frags;
- for(f = 0; f < nr_frags; f++)
+ for (f = 0; f < nr_frags; f++)
count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
max_txd_pwr);
- if(adapter->pcix_82544)
+ if (adapter->pcix_82544)
count += nr_frags;
- if(adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) )
+ if (adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) )
e1000_transfer_dhcp_info(adapter, skb);
local_irq_save(flags);
return NETDEV_TX_BUSY;
}
- if(unlikely(adapter->hw.mac_type == e1000_82547)) {
- if(unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
+ if (unlikely(adapter->hw.mac_type == e1000_82547)) {
+ if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
netif_stop_queue(netdev);
mod_timer(&adapter->tx_fifo_stall_timer, jiffies);
spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
}
}
- if(unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
+ if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
tx_flags |= E1000_TX_FLAGS_VLAN;
tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
}
first = tx_ring->next_to_use;
-
+
tso = e1000_tso(adapter, tx_ring, skb);
if (tso < 0) {
dev_kfree_skb_any(skb);
struct e1000_adapter *adapter = netdev_priv(netdev);
int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
- if((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
- (max_frame > MAX_JUMBO_FRAME_SIZE)) {
- DPRINTK(PROBE, ERR, "Invalid MTU setting\n");
+ if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
+ (max_frame > MAX_JUMBO_FRAME_SIZE)) {
+ DPRINTK(PROBE, ERR, "Invalid MTU setting\n");
return -EINVAL;
}
break;
}
- /* since the driver code now supports splitting a packet across
- * multiple descriptors, most of the fifo related limitations on
- * jumbo frame traffic have gone away.
- * simply use 2k descriptors for everything.
- *
- * NOTE: dev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
- * means we reserve 2 more, this pushes us to allocate from the next
- * larger slab size
- * i.e. RXBUFFER_2048 --> size-4096 slab */
-
- /* recent hardware supports 1KB granularity */
+
if (adapter->hw.mac_type > e1000_82547_rev_2) {
- adapter->rx_buffer_len =
- ((max_frame < E1000_RXBUFFER_2048) ?
- max_frame : E1000_RXBUFFER_2048);
+ adapter->rx_buffer_len = max_frame;
E1000_ROUNDUP(adapter->rx_buffer_len, 1024);
- } else
- adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ } else {
+ if(unlikely((adapter->hw.mac_type < e1000_82543) &&
+ (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE))) {
+ DPRINTK(PROBE, ERR, "Jumbo Frames not supported "
+ "on 82542\n");
+ return -EINVAL;
+ } else {
+ if(max_frame <= E1000_RXBUFFER_2048)
+ adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ else if(max_frame <= E1000_RXBUFFER_4096)
+ adapter->rx_buffer_len = E1000_RXBUFFER_4096;
+ else if(max_frame <= E1000_RXBUFFER_8192)
+ adapter->rx_buffer_len = E1000_RXBUFFER_8192;
+ else if(max_frame <= E1000_RXBUFFER_16384)
+ adapter->rx_buffer_len = E1000_RXBUFFER_16384;
+ }
+ }
netdev->mtu = new_mtu;
- if(netif_running(netdev)) {
+ if (netif_running(netdev)) {
e1000_down(adapter);
e1000_up(adapter);
}
hw->collision_delta = E1000_READ_REG(hw, COLC);
adapter->stats.colc += hw->collision_delta;
- if(hw->mac_type >= e1000_82543) {
+ if (hw->mac_type >= e1000_82543) {
adapter->stats.algnerrc += E1000_READ_REG(hw, ALGNERRC);
adapter->stats.rxerrc += E1000_READ_REG(hw, RXERRC);
adapter->stats.tncrs += E1000_READ_REG(hw, TNCRS);
adapter->stats.tsctc += E1000_READ_REG(hw, TSCTC);
adapter->stats.tsctfc += E1000_READ_REG(hw, TSCTFC);
}
- if(hw->mac_type > e1000_82547_rev_2) {
+ if (hw->mac_type > e1000_82547_rev_2) {
adapter->stats.iac += E1000_READ_REG(hw, IAC);
adapter->stats.icrxoc += E1000_READ_REG(hw, ICRXOC);
adapter->stats.icrxptc += E1000_READ_REG(hw, ICRXPTC);
/* Phy Stats */
- if(hw->media_type == e1000_media_type_copper) {
- if((adapter->link_speed == SPEED_1000) &&
+ if (hw->media_type == e1000_media_type_copper) {
+ if ((adapter->link_speed == SPEED_1000) &&
(!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
adapter->phy_stats.idle_errors += phy_tmp;
}
- if((hw->mac_type <= e1000_82546) &&
+ if ((hw->mac_type <= e1000_82546) &&
(hw->phy_type == e1000_phy_m88) &&
!e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
adapter->phy_stats.receive_errors += phy_tmp;
return IRQ_NONE; /* Not our interrupt */
}
- if(unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
+ if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
hw->get_link_status = 1;
mod_timer(&adapter->watchdog_timer, jiffies);
}
#else /* if !CONFIG_E1000_NAPI */
/* Writing IMC and IMS is needed for 82547.
- Due to Hub Link bus being occupied, an interrupt
- de-assertion message is not able to be sent.
- When an interrupt assertion message is generated later,
- two messages are re-ordered and sent out.
- That causes APIC to think 82547 is in de-assertion
- state, while 82547 is in assertion state, resulting
- in dead lock. Writing IMC forces 82547 into
- de-assertion state.
- */
- if(hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2){
+ * Due to Hub Link bus being occupied, an interrupt
+ * de-assertion message is not able to be sent.
+ * When an interrupt assertion message is generated later,
+ * two messages are re-ordered and sent out.
+ * That causes APIC to think 82547 is in de-assertion
+ * state, while 82547 is in assertion state, resulting
+ * in dead lock. Writing IMC forces 82547 into
+ * de-assertion state.
+ */
+ if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2) {
atomic_inc(&adapter->irq_sem);
E1000_WRITE_REG(hw, IMC, ~0);
}
- for(i = 0; i < E1000_MAX_INTR; i++)
- if(unlikely(!adapter->clean_rx(adapter, adapter->rx_ring) &
+ for (i = 0; i < E1000_MAX_INTR; i++)
+ if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring) &
!e1000_clean_tx_irq(adapter, adapter->tx_ring)))
break;
- if(hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
+ if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
e1000_irq_enable(adapter);
#endif /* CONFIG_E1000_NAPI */
{
struct e1000_adapter *adapter;
int work_to_do = min(*budget, poll_dev->quota);
- int tx_cleaned, i = 0, work_done = 0;
+ int tx_cleaned = 0, i = 0, work_done = 0;
/* Must NOT use netdev_priv macro here. */
adapter = poll_dev->priv;
BUG();
}
- tx_cleaned = e1000_clean_tx_irq(adapter, &adapter->tx_ring[i]);
+ 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],
&work_done, work_to_do);
*budget -= work_done;
poll_dev->quota -= work_done;
-
+
/* If no Tx and not enough Rx work done, exit the polling mode */
- if((!tx_cleaned && (work_done == 0)) ||
+ if ((!tx_cleaned && (work_done == 0)) ||
!netif_running(adapter->netdev)) {
quit_polling:
netif_rx_complete(poll_dev);
eop_desc = E1000_TX_DESC(*tx_ring, eop);
while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
- for(cleaned = FALSE; !cleaned; ) {
+ for (cleaned = FALSE; !cleaned; ) {
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
cleaned = (i == eop);
+#ifdef CONFIG_E1000_MQ
+ tx_ring->tx_stats.bytes += buffer_info->length;
+#endif
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
+ memset(tx_desc, 0, sizeof(struct e1000_tx_desc));
- tx_desc->buffer_addr = 0;
- tx_desc->lower.data = 0;
- tx_desc->upper.data = 0;
-
- if(unlikely(++i == tx_ring->count)) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
#ifdef CONFIG_E1000_MQ
spin_lock(&tx_ring->tx_lock);
- if(unlikely(cleaned && netif_queue_stopped(netdev) &&
+ if (unlikely(cleaned && netif_queue_stopped(netdev) &&
netif_carrier_ok(netdev)))
netif_wake_queue(netdev);
skb->ip_summed = CHECKSUM_NONE;
/* 82543 or newer only */
- if(unlikely(adapter->hw.mac_type < e1000_82543)) return;
+ if (unlikely(adapter->hw.mac_type < e1000_82543)) return;
/* Ignore Checksum bit is set */
- if(unlikely(status & E1000_RXD_STAT_IXSM)) return;
+ if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
/* TCP/UDP checksum error bit is set */
- if(unlikely(errors & E1000_RXD_ERR_TCPE)) {
+ if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
/* let the stack verify checksum errors */
adapter->hw_csum_err++;
return;
}
/* TCP/UDP Checksum has not been calculated */
- if(adapter->hw.mac_type <= e1000_82547_rev_2) {
- if(!(status & E1000_RXD_STAT_TCPCS))
+ if (adapter->hw.mac_type <= e1000_82547_rev_2) {
+ if (!(status & E1000_RXD_STAT_TCPCS))
return;
} else {
- if(!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
+ if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
return;
}
/* It must be a TCP or UDP packet with a valid checksum */
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
- struct e1000_rx_desc *rx_desc;
- struct e1000_buffer *buffer_info;
- struct sk_buff *skb;
+ struct e1000_rx_desc *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
unsigned long flags;
uint32_t length;
uint8_t last_byte;
unsigned int i;
- boolean_t cleaned = FALSE;
int cleaned_count = 0;
+ boolean_t cleaned = FALSE;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC(*rx_ring, i);
+ buffer_info = &rx_ring->buffer_info[i];
- while(rx_desc->status & E1000_RXD_STAT_DD) {
- buffer_info = &rx_ring->buffer_info[i];
+ while (rx_desc->status & E1000_RXD_STAT_DD) {
+ struct sk_buff *skb, *next_skb;
+ u8 status;
#ifdef CONFIG_E1000_NAPI
- if(*work_done >= work_to_do)
+ if (*work_done >= work_to_do)
break;
(*work_done)++;
#endif
+ status = rx_desc->status;
+ skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ if (++i == rx_ring->count) i = 0;
+ next_rxd = E1000_RX_DESC(*rx_ring, i);
+ next_buffer = &rx_ring->buffer_info[i];
+ next_skb = next_buffer->skb;
cleaned = TRUE;
cleaned_count++;
- pci_unmap_single(pdev, buffer_info->dma, buffer_info->length,
+ pci_unmap_single(pdev,
+ buffer_info->dma,
+ buffer_info->length,
PCI_DMA_FROMDEVICE);
- skb = buffer_info->skb;
length = le16_to_cpu(rx_desc->length);
- if(unlikely(!(rx_desc->status & E1000_RXD_STAT_EOP))) {
+ if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
/* All receives must fit into a single buffer */
E1000_DBG("%s: Receive packet consumed multiple"
" buffers\n", netdev->name);
goto next_desc;
}
- if(unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
+ if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
last_byte = *(skb->data + length - 1);
- if(TBI_ACCEPT(&adapter->hw, rx_desc->status,
+ if (TBI_ACCEPT(&adapter->hw, status,
rx_desc->errors, length, last_byte)) {
spin_lock_irqsave(&adapter->stats_lock, flags);
- e1000_tbi_adjust_stats(&adapter->hw, &adapter->stats,
+ e1000_tbi_adjust_stats(&adapter->hw,
+ &adapter->stats,
length, skb->data);
spin_unlock_irqrestore(&adapter->stats_lock,
flags);
}
}
- /* Good Receive */
- skb_put(skb, length - ETHERNET_FCS_SIZE);
+ /* code added for copybreak, this should improve
+ * performance for small packets with large amounts
+ * of reassembly being done in the stack */
+#define E1000_CB_LENGTH 256
+ if (length < E1000_CB_LENGTH) {
+ struct sk_buff *new_skb =
+ dev_alloc_skb(length + NET_IP_ALIGN);
+ if (new_skb) {
+ skb_reserve(new_skb, NET_IP_ALIGN);
+ new_skb->dev = netdev;
+ memcpy(new_skb->data - NET_IP_ALIGN,
+ skb->data - NET_IP_ALIGN,
+ length + NET_IP_ALIGN);
+ /* save the skb in buffer_info as good */
+ buffer_info->skb = skb;
+ skb = new_skb;
+ skb_put(skb, length);
+ }
+ } else
+ skb_put(skb, length);
+
+ /* end copybreak code */
/* Receive Checksum Offload */
- e1000_rx_checksum(adapter, (uint32_t)(rx_desc->status) |
+ e1000_rx_checksum(adapter,
+ (uint32_t)(status) |
((uint32_t)(rx_desc->errors) << 24),
- rx_desc->csum, skb);
+ le16_to_cpu(rx_desc->csum), skb);
+
skb->protocol = eth_type_trans(skb, netdev);
#ifdef CONFIG_E1000_NAPI
- if(unlikely(adapter->vlgrp &&
- (rx_desc->status & E1000_RXD_STAT_VP))) {
+ if (unlikely(adapter->vlgrp &&
+ (status & E1000_RXD_STAT_VP))) {
vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
le16_to_cpu(rx_desc->special) &
E1000_RXD_SPC_VLAN_MASK);
netif_receive_skb(skb);
}
#else /* CONFIG_E1000_NAPI */
- if(unlikely(adapter->vlgrp &&
- (rx_desc->status & E1000_RXD_STAT_VP))) {
+ if (unlikely(adapter->vlgrp &&
+ (status & E1000_RXD_STAT_VP))) {
vlan_hwaccel_rx(skb, adapter->vlgrp,
le16_to_cpu(rx_desc->special) &
E1000_RXD_SPC_VLAN_MASK);
cleaned_count = 0;
}
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
}
rx_ring->next_to_clean = i;
struct e1000_rx_ring *rx_ring)
#endif
{
- union e1000_rx_desc_packet_split *rx_desc;
+ union e1000_rx_desc_packet_split *rx_desc, *next_rxd;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
- struct e1000_buffer *buffer_info;
+ struct e1000_buffer *buffer_info, *next_buffer;
struct e1000_ps_page *ps_page;
struct e1000_ps_page_dma *ps_page_dma;
- struct sk_buff *skb;
+ struct sk_buff *skb, *next_skb;
unsigned int i, j;
uint32_t length, staterr;
int cleaned_count = 0;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+ buffer_info = &rx_ring->buffer_info[i];
- while(staterr & E1000_RXD_STAT_DD) {
- buffer_info = &rx_ring->buffer_info[i];
+ while (staterr & E1000_RXD_STAT_DD) {
ps_page = &rx_ring->ps_page[i];
ps_page_dma = &rx_ring->ps_page_dma[i];
#ifdef CONFIG_E1000_NAPI
- if(unlikely(*work_done >= work_to_do))
+ if (unlikely(*work_done >= work_to_do))
break;
(*work_done)++;
#endif
+ skb = buffer_info->skb;
+
+ if (++i == rx_ring->count) i = 0;
+ next_rxd = E1000_RX_DESC_PS(*rx_ring, i);
+ next_buffer = &rx_ring->buffer_info[i];
+ next_skb = next_buffer->skb;
+
cleaned = TRUE;
cleaned_count++;
pci_unmap_single(pdev, buffer_info->dma,
buffer_info->length,
PCI_DMA_FROMDEVICE);
- skb = buffer_info->skb;
-
- if(unlikely(!(staterr & E1000_RXD_STAT_EOP))) {
+ if (unlikely(!(staterr & E1000_RXD_STAT_EOP))) {
E1000_DBG("%s: Packet Split buffers didn't pick up"
" the full packet\n", netdev->name);
dev_kfree_skb_irq(skb);
goto next_desc;
}
- if(unlikely(staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK)) {
+ if (unlikely(staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK)) {
dev_kfree_skb_irq(skb);
goto next_desc;
}
length = le16_to_cpu(rx_desc->wb.middle.length0);
- if(unlikely(!length)) {
+ if (unlikely(!length)) {
E1000_DBG("%s: Last part of the packet spanning"
" multiple descriptors\n", netdev->name);
dev_kfree_skb_irq(skb);
/* Good Receive */
skb_put(skb, length);
- for(j = 0; j < adapter->rx_ps_pages; j++) {
- if(!(length = le16_to_cpu(rx_desc->wb.upper.length[j])))
+ for (j = 0; j < adapter->rx_ps_pages; j++) {
+ if (!(length = le16_to_cpu(rx_desc->wb.upper.length[j])))
break;
pci_unmap_page(pdev, ps_page_dma->ps_page_dma[j],
}
e1000_rx_checksum(adapter, staterr,
- rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
+ le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
skb->protocol = eth_type_trans(skb, netdev);
- if(likely(rx_desc->wb.upper.header_status &
- E1000_RXDPS_HDRSTAT_HDRSP)) {
+ if (likely(rx_desc->wb.upper.header_status &
+ cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP)))
adapter->rx_hdr_split++;
-#ifdef HAVE_RX_ZERO_COPY
- skb_shinfo(skb)->zero_copy = TRUE;
-#endif
- }
#ifdef CONFIG_E1000_NAPI
- if(unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
+ if (unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
le16_to_cpu(rx_desc->wb.middle.vlan) &
E1000_RXD_SPC_VLAN_MASK);
netif_receive_skb(skb);
}
#else /* CONFIG_E1000_NAPI */
- if(unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
+ if (unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
vlan_hwaccel_rx(skb, adapter->vlgrp,
le16_to_cpu(rx_desc->wb.middle.vlan) &
E1000_RXD_SPC_VLAN_MASK);
#endif
next_desc:
- rx_desc->wb.middle.status_error &= ~0xFF;
+ rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
buffer_info->skb = NULL;
/* return some buffers to hardware, one at a time is too slow */
cleaned_count = 0;
}
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
}
rx_ring->next_to_clean = i;
static void
e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
struct e1000_rx_ring *rx_ring,
- int cleaned_count)
+ int cleaned_count)
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
i = rx_ring->next_to_use;
buffer_info = &rx_ring->buffer_info[i];
- while(!buffer_info->skb) {
- skb = dev_alloc_skb(bufsz);
+ while (cleaned_count--) {
+ if (!(skb = buffer_info->skb))
+ skb = dev_alloc_skb(bufsz);
+ else {
+ skb_trim(skb, 0);
+ goto map_skb;
+ }
+
- if(unlikely(!skb)) {
+ if (unlikely(!skb)) {
/* Better luck next round */
adapter->alloc_rx_buff_failed++;
break;
buffer_info->skb = skb;
buffer_info->length = adapter->rx_buffer_len;
+map_skb:
buffer_info->dma = pci_map_single(pdev,
skb->data,
adapter->rx_buffer_len,
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
- if(unlikely((i & ~(E1000_RX_BUFFER_WRITE - 1)) == i)) {
- /* Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64). */
- wmb();
- writel(i, adapter->hw.hw_addr + rx_ring->rdt);
- }
-
- if(unlikely(++i == rx_ring->count)) i = 0;
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
buffer_info = &rx_ring->buffer_info[i];
}
- rx_ring->next_to_use = i;
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0))
+ i = (rx_ring->count - 1);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+ writel(i, adapter->hw.hw_addr + rx_ring->rdt);
+ }
}
/**
while (cleaned_count--) {
rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
- for(j = 0; j < PS_PAGE_BUFFERS; j++) {
+ for (j = 0; j < PS_PAGE_BUFFERS; j++) {
if (j < adapter->rx_ps_pages) {
if (likely(!ps_page->ps_page[j])) {
ps_page->ps_page[j] =
alloc_page(GFP_ATOMIC);
- if (unlikely(!ps_page->ps_page[j]))
+ if (unlikely(!ps_page->ps_page[j])) {
+ adapter->alloc_rx_buff_failed++;
goto no_buffers;
+ }
ps_page_dma->ps_page_dma[j] =
pci_map_page(pdev,
ps_page->ps_page[j],
PCI_DMA_FROMDEVICE);
}
/* Refresh the desc even if buffer_addrs didn't
- * change because each write-back erases
+ * change because each write-back erases
* this info.
*/
rx_desc->read.buffer_addr[j+1] =
skb = dev_alloc_skb(adapter->rx_ps_bsize0 + NET_IP_ALIGN);
- if(unlikely(!skb))
+ if (unlikely(!skb)) {
+ adapter->alloc_rx_buff_failed++;
break;
+ }
/* Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
rx_desc->read.buffer_addr[0] = cpu_to_le64(buffer_info->dma);
- if(unlikely((i & ~(E1000_RX_BUFFER_WRITE - 1)) == i)) {
- /* Force memory writes to complete before letting h/w
- * know there are new descriptors to fetch. (Only
- * applicable for weak-ordered memory model archs,
- * such as IA-64). */
- wmb();
- /* Hardware increments by 16 bytes, but packet split
- * descriptors are 32 bytes...so we increment tail
- * twice as much.
- */
- writel(i<<1, adapter->hw.hw_addr + rx_ring->rdt);
- }
-
- if(unlikely(++i == rx_ring->count)) i = 0;
+ if (unlikely(++i == rx_ring->count)) i = 0;
buffer_info = &rx_ring->buffer_info[i];
ps_page = &rx_ring->ps_page[i];
ps_page_dma = &rx_ring->ps_page_dma[i];
}
no_buffers:
- rx_ring->next_to_use = i;
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0)) i = (rx_ring->count - 1);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+ /* Hardware increments by 16 bytes, but packet split
+ * descriptors are 32 bytes...so we increment tail
+ * twice as much.
+ */
+ writel(i<<1, adapter->hw.hw_addr + rx_ring->rdt);
+ }
}
/**
uint16_t phy_status;
uint16_t phy_ctrl;
- if((adapter->hw.phy_type != e1000_phy_igp) || !adapter->hw.autoneg ||
+ if ((adapter->hw.phy_type != e1000_phy_igp) || !adapter->hw.autoneg ||
!(adapter->hw.autoneg_advertised & ADVERTISE_1000_FULL))
return;
- if(adapter->smartspeed == 0) {
+ if (adapter->smartspeed == 0) {
/* If Master/Slave config fault is asserted twice,
* we assume back-to-back */
e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_status);
- if(!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
+ if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_status);
- if(!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
+ if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
e1000_read_phy_reg(&adapter->hw, PHY_1000T_CTRL, &phy_ctrl);
- if(phy_ctrl & CR_1000T_MS_ENABLE) {
+ if (phy_ctrl & CR_1000T_MS_ENABLE) {
phy_ctrl &= ~CR_1000T_MS_ENABLE;
e1000_write_phy_reg(&adapter->hw, PHY_1000T_CTRL,
phy_ctrl);
adapter->smartspeed++;
- if(!e1000_phy_setup_autoneg(&adapter->hw) &&
+ if (!e1000_phy_setup_autoneg(&adapter->hw) &&
!e1000_read_phy_reg(&adapter->hw, PHY_CTRL,
&phy_ctrl)) {
phy_ctrl |= (MII_CR_AUTO_NEG_EN |
}
}
return;
- } else if(adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
+ } else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
/* If still no link, perhaps using 2/3 pair cable */
e1000_read_phy_reg(&adapter->hw, PHY_1000T_CTRL, &phy_ctrl);
phy_ctrl |= CR_1000T_MS_ENABLE;
e1000_write_phy_reg(&adapter->hw, PHY_1000T_CTRL, phy_ctrl);
- if(!e1000_phy_setup_autoneg(&adapter->hw) &&
+ if (!e1000_phy_setup_autoneg(&adapter->hw) &&
!e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_ctrl)) {
phy_ctrl |= (MII_CR_AUTO_NEG_EN |
MII_CR_RESTART_AUTO_NEG);
}
}
/* Restart process after E1000_SMARTSPEED_MAX iterations */
- if(adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
+ if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
adapter->smartspeed = 0;
}
uint16_t spddplx;
unsigned long flags;
- if(adapter->hw.media_type != e1000_media_type_copper)
+ if (adapter->hw.media_type != e1000_media_type_copper)
return -EOPNOTSUPP;
switch (cmd) {
data->phy_id = adapter->hw.phy_addr;
break;
case SIOCGMIIREG:
- if(!capable(CAP_NET_ADMIN))
+ if (!capable(CAP_NET_ADMIN))
return -EPERM;
spin_lock_irqsave(&adapter->stats_lock, flags);
- if(e1000_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
+ if (e1000_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
&data->val_out)) {
spin_unlock_irqrestore(&adapter->stats_lock, flags);
return -EIO;
spin_unlock_irqrestore(&adapter->stats_lock, flags);
break;
case SIOCSMIIREG:
- if(!capable(CAP_NET_ADMIN))
+ if (!capable(CAP_NET_ADMIN))
return -EPERM;
- if(data->reg_num & ~(0x1F))
+ if (data->reg_num & ~(0x1F))
return -EFAULT;
mii_reg = data->val_in;
spin_lock_irqsave(&adapter->stats_lock, flags);
- if(e1000_write_phy_reg(&adapter->hw, data->reg_num,
+ if (e1000_write_phy_reg(&adapter->hw, data->reg_num,
mii_reg)) {
spin_unlock_irqrestore(&adapter->stats_lock, flags);
return -EIO;
}
- if(adapter->hw.phy_type == e1000_phy_m88) {
+ if (adapter->hw.phy_type == e1000_phy_m88) {
switch (data->reg_num) {
case PHY_CTRL:
- if(mii_reg & MII_CR_POWER_DOWN)
+ if (mii_reg & MII_CR_POWER_DOWN)
break;
- if(mii_reg & MII_CR_AUTO_NEG_EN) {
+ if (mii_reg & MII_CR_AUTO_NEG_EN) {
adapter->hw.autoneg = 1;
adapter->hw.autoneg_advertised = 0x2F;
} else {
HALF_DUPLEX;
retval = e1000_set_spd_dplx(adapter,
spddplx);
- if(retval) {
+ if (retval) {
spin_unlock_irqrestore(
- &adapter->stats_lock,
+ &adapter->stats_lock,
flags);
return retval;
}
}
- if(netif_running(adapter->netdev)) {
+ if (netif_running(adapter->netdev)) {
e1000_down(adapter);
e1000_up(adapter);
} else
break;
case M88E1000_PHY_SPEC_CTRL:
case M88E1000_EXT_PHY_SPEC_CTRL:
- if(e1000_phy_reset(&adapter->hw)) {
+ if (e1000_phy_reset(&adapter->hw)) {
spin_unlock_irqrestore(
&adapter->stats_lock, flags);
return -EIO;
} else {
switch (data->reg_num) {
case PHY_CTRL:
- if(mii_reg & MII_CR_POWER_DOWN)
+ if (mii_reg & MII_CR_POWER_DOWN)
break;
- if(netif_running(adapter->netdev)) {
+ if (netif_running(adapter->netdev)) {
e1000_down(adapter);
e1000_up(adapter);
} else
struct e1000_adapter *adapter = hw->back;
int ret_val = pci_set_mwi(adapter->pdev);
- if(ret_val)
+ if (ret_val)
DPRINTK(PROBE, ERR, "Error in setting MWI\n");
}
e1000_irq_disable(adapter);
adapter->vlgrp = grp;
- if(grp) {
+ if (grp) {
/* enable VLAN tag insert/strip */
ctrl = E1000_READ_REG(&adapter->hw, CTRL);
ctrl |= E1000_CTRL_VME;
rctl = E1000_READ_REG(&adapter->hw, RCTL);
rctl &= ~E1000_RCTL_VFE;
E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
- if(adapter->mng_vlan_id != (uint16_t)E1000_MNG_VLAN_NONE) {
+ if (adapter->mng_vlan_id != (uint16_t)E1000_MNG_VLAN_NONE) {
e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
}
{
struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t vfta, index;
- if((adapter->hw.mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
- (vid == adapter->mng_vlan_id))
+
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
+ (vid == adapter->mng_vlan_id))
return;
/* add VID to filter table */
index = (vid >> 5) & 0x7F;
e1000_irq_disable(adapter);
- if(adapter->vlgrp)
+ if (adapter->vlgrp)
adapter->vlgrp->vlan_devices[vid] = NULL;
e1000_irq_enable(adapter);
- if((adapter->hw.mng_cookie.status &
- E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
(vid == adapter->mng_vlan_id)) {
/* release control to f/w */
e1000_release_hw_control(adapter);
{
e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
- if(adapter->vlgrp) {
+ if (adapter->vlgrp) {
uint16_t vid;
- for(vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
- if(!adapter->vlgrp->vlan_devices[vid])
+ for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
+ if (!adapter->vlgrp->vlan_devices[vid])
continue;
e1000_vlan_rx_add_vid(adapter->netdev, vid);
}
adapter->hw.autoneg = 0;
/* Fiber NICs only allow 1000 gbps Full duplex */
- if((adapter->hw.media_type == e1000_media_type_fiber) &&
+ if ((adapter->hw.media_type == e1000_media_type_fiber) &&
spddplx != (SPEED_1000 + DUPLEX_FULL)) {
DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
return -EINVAL;
}
- switch(spddplx) {
+ switch (spddplx) {
case SPEED_10 + DUPLEX_HALF:
adapter->hw.forced_speed_duplex = e1000_10_half;
break;
}
#ifdef CONFIG_PM
+/* these functions save and restore 16 or 64 dwords (64-256 bytes) of config
+ * space versus the 64 bytes that pci_[save|restore]_state handle
+ */
+#define PCIE_CONFIG_SPACE_LEN 256
+#define PCI_CONFIG_SPACE_LEN 64
+static int
+e1000_pci_save_state(struct e1000_adapter *adapter)
+{
+ struct pci_dev *dev = adapter->pdev;
+ int size;
+ int i;
+ if (adapter->hw.mac_type >= e1000_82571)
+ size = PCIE_CONFIG_SPACE_LEN;
+ else
+ size = PCI_CONFIG_SPACE_LEN;
+
+ WARN_ON(adapter->config_space != NULL);
+
+ adapter->config_space = kmalloc(size, GFP_KERNEL);
+ if (!adapter->config_space) {
+ DPRINTK(PROBE, ERR, "unable to allocate %d bytes\n", size);
+ return -ENOMEM;
+ }
+ for (i = 0; i < (size / 4); i++)
+ pci_read_config_dword(dev, i * 4, &adapter->config_space[i]);
+ return 0;
+}
+
+static void
+e1000_pci_restore_state(struct e1000_adapter *adapter)
+{
+ struct pci_dev *dev = adapter->pdev;
+ int size;
+ int i;
+ if (adapter->config_space == NULL)
+ return;
+ if (adapter->hw.mac_type >= e1000_82571)
+ size = PCIE_CONFIG_SPACE_LEN;
+ else
+ size = PCI_CONFIG_SPACE_LEN;
+ for (i = 0; i < (size / 4); i++)
+ pci_write_config_dword(dev, i * 4, adapter->config_space[i]);
+ kfree(adapter->config_space);
+ adapter->config_space = NULL;
+ return;
+}
+#endif /* CONFIG_PM */
+
static int
e1000_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t ctrl, ctrl_ext, rctl, manc, status;
uint32_t wufc = adapter->wol;
+ int retval = 0;
netif_device_detach(netdev);
- if(netif_running(netdev))
+ if (netif_running(netdev))
e1000_down(adapter);
+#ifdef CONFIG_PM
+ /* implement our own version of pci_save_state(pdev) because pci
+ * express adapters have larger 256 byte config spaces */
+ retval = e1000_pci_save_state(adapter);
+ if (retval)
+ return retval;
+#endif
+
status = E1000_READ_REG(&adapter->hw, STATUS);
- if(status & E1000_STATUS_LU)
+ if (status & E1000_STATUS_LU)
wufc &= ~E1000_WUFC_LNKC;
- if(wufc) {
+ if (wufc) {
e1000_setup_rctl(adapter);
e1000_set_multi(netdev);
/* turn on all-multi mode if wake on multicast is enabled */
- if(adapter->wol & E1000_WUFC_MC) {
+ if (adapter->wol & E1000_WUFC_MC) {
rctl = E1000_READ_REG(&adapter->hw, RCTL);
rctl |= E1000_RCTL_MPE;
E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
}
- if(adapter->hw.mac_type >= e1000_82540) {
+ if (adapter->hw.mac_type >= e1000_82540) {
ctrl = E1000_READ_REG(&adapter->hw, CTRL);
/* advertise wake from D3Cold */
#define E1000_CTRL_ADVD3WUC 0x00100000
E1000_WRITE_REG(&adapter->hw, CTRL, ctrl);
}
- if(adapter->hw.media_type == e1000_media_type_fiber ||
+ if (adapter->hw.media_type == e1000_media_type_fiber ||
adapter->hw.media_type == e1000_media_type_internal_serdes) {
/* keep the laser running in D3 */
ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
E1000_WRITE_REG(&adapter->hw, WUC, E1000_WUC_PME_EN);
E1000_WRITE_REG(&adapter->hw, WUFC, wufc);
- pci_enable_wake(pdev, 3, 1);
- pci_enable_wake(pdev, 4, 1); /* 4 == D3 cold */
+ retval = pci_enable_wake(pdev, PCI_D3hot, 1);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
+ retval = pci_enable_wake(pdev, PCI_D3cold, 1);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
} else {
E1000_WRITE_REG(&adapter->hw, WUC, 0);
E1000_WRITE_REG(&adapter->hw, WUFC, 0);
- pci_enable_wake(pdev, 3, 0);
- pci_enable_wake(pdev, 4, 0); /* 4 == D3 cold */
+ retval = pci_enable_wake(pdev, PCI_D3hot, 0);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
+ retval = pci_enable_wake(pdev, PCI_D3cold, 0); /* 4 == D3 cold */
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
}
- pci_save_state(pdev);
-
- if(adapter->hw.mac_type >= e1000_82540 &&
+ if (adapter->hw.mac_type >= e1000_82540 &&
adapter->hw.media_type == e1000_media_type_copper) {
manc = E1000_READ_REG(&adapter->hw, MANC);
- if(manc & E1000_MANC_SMBUS_EN) {
+ if (manc & E1000_MANC_SMBUS_EN) {
manc |= E1000_MANC_ARP_EN;
E1000_WRITE_REG(&adapter->hw, MANC, manc);
- pci_enable_wake(pdev, 3, 1);
- pci_enable_wake(pdev, 4, 1); /* 4 == D3 cold */
+ retval = pci_enable_wake(pdev, PCI_D3hot, 1);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
+ retval = pci_enable_wake(pdev, PCI_D3cold, 1);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
}
}
e1000_release_hw_control(adapter);
pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ retval = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error in setting power state\n");
return 0;
}
+#ifdef CONFIG_PM
static int
e1000_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
+ int retval;
uint32_t manc, ret_val;
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
+ retval = pci_set_power_state(pdev, PCI_D0);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error in setting power state\n");
+ e1000_pci_restore_state(adapter);
ret_val = pci_enable_device(pdev);
pci_set_master(pdev);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
+ retval = pci_enable_wake(pdev, PCI_D3hot, 0);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
+ retval = pci_enable_wake(pdev, PCI_D3cold, 0);
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
e1000_reset(adapter);
E1000_WRITE_REG(&adapter->hw, WUS, ~0);
- if(netif_running(netdev))
+ if (netif_running(netdev))
e1000_up(adapter);
netif_device_attach(netdev);
- if(adapter->hw.mac_type >= e1000_82540 &&
+ if (adapter->hw.mac_type >= e1000_82540 &&
adapter->hw.media_type == e1000_media_type_copper) {
manc = E1000_READ_REG(&adapter->hw, MANC);
manc &= ~(E1000_MANC_ARP_EN);
projects / linux-2.6-omap-h63xx.git / blobdiff