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Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
-rw-r--r--drivers/net/e1000/e1000_main.c611
1 files changed, 265 insertions, 346 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 84dcca3776e..49cd096a3c3 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -29,6 +29,23 @@
#include "e1000.h"
/* Change Log
+ * 7.0.33 3-Feb-2006
+ * o Added another fix for the pass false carrier bit
+ * 7.0.32 24-Jan-2006
+ * o Need to rebuild with noew version number for the pass false carrier
+ * fix in e1000_hw.c
+ * 7.0.30 18-Jan-2006
+ * o fixup for tso workaround to disable it for pci-x
+ * o fix mem leak on 82542
+ * o fixes for 10 Mb/s connections and incorrect stats
+ * 7.0.28 01/06/2006
+ * o hardware workaround to only set "speed mode" bit for 1G link.
+ * 7.0.26 12/23/2005
+ * o wake on lan support modified for device ID 10B5
+ * o fix dhcp + vlan issue not making it to the iAMT firmware
+ * 7.0.24 12/9/2005
+ * o New hardware support for the Gigabit NIC embedded in the south bridge
+ * o Fixes to the recycling logic (skb->tail) from IBM LTC
* 6.3.9 12/16/2005
* o incorporate fix for recycled skbs from IBM LTC
* 6.3.7 11/18/2005
@@ -46,54 +63,8 @@
* rx_buffer_len
* 6.3.1 9/19/05
* o Use adapter->tx_timeout_factor in Tx Hung Detect logic
- (e1000_clean_tx_irq)
+ * (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";
@@ -103,7 +74,7 @@ static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
#else
#define DRIVERNAPI "-NAPI"
#endif
-#define DRV_VERSION "6.3.9-k4"DRIVERNAPI
+#define DRV_VERSION "7.0.33-k2"DRIVERNAPI
char e1000_driver_version[] = DRV_VERSION;
static char e1000_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
@@ -157,32 +128,26 @@ static struct pci_device_id e1000_pci_tbl[] = {
INTEL_E1000_ETHERNET_DEVICE(0x108A),
INTEL_E1000_ETHERNET_DEVICE(0x108B),
INTEL_E1000_ETHERNET_DEVICE(0x108C),
+ INTEL_E1000_ETHERNET_DEVICE(0x1096),
+ INTEL_E1000_ETHERNET_DEVICE(0x1098),
INTEL_E1000_ETHERNET_DEVICE(0x1099),
INTEL_E1000_ETHERNET_DEVICE(0x109A),
INTEL_E1000_ETHERNET_DEVICE(0x10B5),
+ INTEL_E1000_ETHERNET_DEVICE(0x10B9),
/* required last entry */
{0,}
};
MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
-int e1000_up(struct e1000_adapter *adapter);
-void e1000_down(struct e1000_adapter *adapter);
-void e1000_reset(struct e1000_adapter *adapter);
-int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx);
-int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
-int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
-void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
-void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *txdr);
+ struct e1000_tx_ring *txdr);
static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rxdr);
+ struct e1000_rx_ring *rxdr);
static void e1000_free_tx_resources(struct e1000_adapter *adapter,
- struct e1000_tx_ring *tx_ring);
+ struct e1000_tx_ring *tx_ring);
static void e1000_free_rx_resources(struct e1000_adapter *adapter,
- struct e1000_rx_ring *rx_ring);
-void e1000_update_stats(struct e1000_adapter *adapter);
+ struct e1000_rx_ring *rx_ring);
/* Local Function Prototypes */
@@ -191,9 +156,6 @@ static void e1000_exit_module(void);
static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void __devexit e1000_remove(struct pci_dev *pdev);
static int e1000_alloc_queues(struct e1000_adapter *adapter);
-#ifdef CONFIG_E1000_MQ
-static void e1000_setup_queue_mapping(struct e1000_adapter *adapter);
-#endif
static int e1000_sw_init(struct e1000_adapter *adapter);
static int e1000_open(struct net_device *netdev);
static int e1000_close(struct net_device *netdev);
@@ -241,11 +203,10 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
int cmd);
-void e1000_set_ethtool_ops(struct net_device *netdev);
static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
static void e1000_tx_timeout(struct net_device *dev);
-static void e1000_tx_timeout_task(struct net_device *dev);
+static void e1000_reset_task(struct net_device *dev);
static void e1000_smartspeed(struct e1000_adapter *adapter);
static inline int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
struct sk_buff *skb);
@@ -265,14 +226,6 @@ static int e1000_resume(struct pci_dev *pdev);
static void e1000_netpoll (struct net_device *netdev);
#endif
-#ifdef CONFIG_E1000_MQ
-/* for multiple Rx queues */
-void e1000_rx_schedule(void *data);
-#endif
-
-/* Exported from other modules */
-
-extern void e1000_check_options(struct e1000_adapter *adapter);
static struct pci_driver e1000_driver = {
.name = e1000_driver_name,
@@ -380,7 +333,8 @@ e1000_update_mng_vlan(struct e1000_adapter *adapter)
(vid != old_vid) &&
!adapter->vlgrp->vlan_devices[old_vid])
e1000_vlan_rx_kill_vid(netdev, old_vid);
- }
+ } else
+ adapter->mng_vlan_id = vid;
}
}
@@ -502,10 +456,6 @@ e1000_up(struct e1000_adapter *adapter)
return err;
}
-#ifdef CONFIG_E1000_MQ
- e1000_setup_queue_mapping(adapter);
-#endif
-
adapter->tx_queue_len = netdev->tx_queue_len;
mod_timer(&adapter->watchdog_timer, jiffies);
@@ -526,9 +476,7 @@ e1000_down(struct e1000_adapter *adapter)
e1000_check_mng_mode(&adapter->hw);
e1000_irq_disable(adapter);
-#ifdef CONFIG_E1000_MQ
- while (atomic_read(&adapter->rx_sched_call_data.count) != 0);
-#endif
+
free_irq(adapter->pdev->irq, netdev);
#ifdef CONFIG_PCI_MSI
if (adapter->hw.mac_type > e1000_82547_rev_2 &&
@@ -587,6 +535,7 @@ e1000_reset(struct e1000_adapter *adapter)
break;
case e1000_82571:
case e1000_82572:
+ case e1000_80003es2lan:
pba = E1000_PBA_38K;
break;
case e1000_82573:
@@ -619,7 +568,10 @@ e1000_reset(struct e1000_adapter *adapter)
adapter->hw.fc_high_water = fc_high_water_mark;
adapter->hw.fc_low_water = fc_high_water_mark - 8;
- adapter->hw.fc_pause_time = E1000_FC_PAUSE_TIME;
+ if (adapter->hw.mac_type == e1000_80003es2lan)
+ adapter->hw.fc_pause_time = 0xFFFF;
+ else
+ adapter->hw.fc_pause_time = E1000_FC_PAUSE_TIME;
adapter->hw.fc_send_xon = 1;
adapter->hw.fc = adapter->hw.original_fc;
@@ -663,6 +615,7 @@ e1000_probe(struct pci_dev *pdev,
unsigned long mmio_start, mmio_len;
static int cards_found = 0;
+ static int e1000_ksp3_port_a = 0; /* global ksp3 port a indication */
int i, err, pci_using_dac;
uint16_t eeprom_data;
uint16_t eeprom_apme_mask = E1000_EEPROM_APME;
@@ -755,6 +708,15 @@ e1000_probe(struct pci_dev *pdev,
if ((err = e1000_check_phy_reset_block(&adapter->hw)))
DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n");
+ /* if ksp3, indicate if it's port a being setup */
+ if (pdev->device == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 &&
+ e1000_ksp3_port_a == 0)
+ adapter->ksp3_port_a = 1;
+ e1000_ksp3_port_a++;
+ /* Reset for multiple KP3 adapters */
+ if (e1000_ksp3_port_a == 4)
+ e1000_ksp3_port_a = 0;
+
if (adapter->hw.mac_type >= e1000_82543) {
netdev->features = NETIF_F_SG |
NETIF_F_HW_CSUM |
@@ -826,8 +788,8 @@ e1000_probe(struct pci_dev *pdev,
adapter->phy_info_timer.function = &e1000_update_phy_info;
adapter->phy_info_timer.data = (unsigned long) adapter;
- INIT_WORK(&adapter->tx_timeout_task,
- (void (*)(void *))e1000_tx_timeout_task, netdev);
+ INIT_WORK(&adapter->reset_task,
+ (void (*)(void *))e1000_reset_task, netdev);
/* we're going to reset, so assume we have no link for now */
@@ -854,6 +816,7 @@ e1000_probe(struct pci_dev *pdev,
case e1000_82546:
case e1000_82546_rev_3:
case e1000_82571:
+ case e1000_80003es2lan:
if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_FUNC_1){
e1000_read_eeprom(&adapter->hw,
EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
@@ -957,7 +920,7 @@ e1000_remove(struct pci_dev *pdev)
unregister_netdev(netdev);
#ifdef CONFIG_E1000_NAPI
for (i = 0; i < adapter->num_rx_queues; i++)
- __dev_put(&adapter->polling_netdev[i]);
+ dev_put(&adapter->polling_netdev[i]);
#endif
if (!e1000_check_phy_reset_block(&adapter->hw))
@@ -972,10 +935,6 @@ e1000_remove(struct pci_dev *pdev)
iounmap(adapter->hw.hw_addr);
pci_release_regions(pdev);
-#ifdef CONFIG_E1000_MQ
- free_percpu(adapter->cpu_netdev);
- free_percpu(adapter->cpu_tx_ring);
-#endif
free_netdev(netdev);
pci_disable_device(pdev);
@@ -1056,40 +1015,8 @@ e1000_sw_init(struct e1000_adapter *adapter)
hw->master_slave = E1000_MASTER_SLAVE;
}
-#ifdef CONFIG_E1000_MQ
- /* Number of supported queues */
- switch (hw->mac_type) {
- case e1000_82571:
- case e1000_82572:
- /* These controllers support 2 tx queues, but with a single
- * qdisc implementation, multiple tx queues aren't quite as
- * interesting. If we can find a logical way of mapping
- * flows to a queue, then perhaps we can up the num_tx_queue
- * count back to its default. Until then, we run the risk of
- * terrible performance due to SACK overload. */
- adapter->num_tx_queues = 1;
- adapter->num_rx_queues = 2;
- break;
- default:
- adapter->num_tx_queues = 1;
- adapter->num_rx_queues = 1;
- break;
- }
- adapter->num_rx_queues = min(adapter->num_rx_queues, num_online_cpus());
- adapter->num_tx_queues = min(adapter->num_tx_queues, num_online_cpus());
- DPRINTK(DRV, INFO, "Multiqueue Enabled: Rx Queue count = %u %s\n",
- adapter->num_rx_queues,
- ((adapter->num_rx_queues == 1)
- ? ((num_online_cpus() > 1)
- ? "(due to unsupported feature in current adapter)"
- : "(due to unsupported system configuration)")
- : ""));
- DPRINTK(DRV, INFO, "Multiqueue Enabled: Tx Queue count = %u\n",
- adapter->num_tx_queues);
-#else
adapter->num_tx_queues = 1;
adapter->num_rx_queues = 1;
-#endif
if (e1000_alloc_queues(adapter)) {
DPRINTK(PROBE, ERR, "Unable to allocate memory for queues\n");
@@ -1152,51 +1079,9 @@ e1000_alloc_queues(struct e1000_adapter *adapter)
memset(adapter->polling_netdev, 0, size);
#endif
-#ifdef CONFIG_E1000_MQ
- adapter->rx_sched_call_data.func = e1000_rx_schedule;
- adapter->rx_sched_call_data.info = adapter->netdev;
-
- adapter->cpu_netdev = alloc_percpu(struct net_device *);
- adapter->cpu_tx_ring = alloc_percpu(struct e1000_tx_ring *);
-#endif
-
return E1000_SUCCESS;
}
-#ifdef CONFIG_E1000_MQ
-static void __devinit
-e1000_setup_queue_mapping(struct e1000_adapter *adapter)
-{
- int i, cpu;
-
- adapter->rx_sched_call_data.func = e1000_rx_schedule;
- adapter->rx_sched_call_data.info = adapter->netdev;
- cpus_clear(adapter->rx_sched_call_data.cpumask);
-
- adapter->cpu_netdev = alloc_percpu(struct net_device *);
- adapter->cpu_tx_ring = alloc_percpu(struct e1000_tx_ring *);
-
- lock_cpu_hotplug();
- i = 0;
- for_each_online_cpu(cpu) {
- *per_cpu_ptr(adapter->cpu_tx_ring, cpu) = &adapter->tx_ring[i % adapter->num_tx_queues];
- /* This is incomplete because we'd like to assign separate
- * physical cpus to these netdev polling structures and
- * avoid saturating a subset of cpus.
- */
- if (i < adapter->num_rx_queues) {
- *per_cpu_ptr(adapter->cpu_netdev, cpu) = &adapter->polling_netdev[i];
- adapter->rx_ring[i].cpu = cpu;
- cpu_set(cpu, adapter->cpumask);
- } else
- *per_cpu_ptr(adapter->cpu_netdev, cpu) = NULL;
-
- i++;
- }
- unlock_cpu_hotplug();
-}
-#endif
-
/**
* e1000_open - Called when a network interface is made active
* @netdev: network interface device structure
@@ -1435,18 +1320,6 @@ e1000_configure_tx(struct e1000_adapter *adapter)
/* Setup the HW Tx Head and Tail descriptor pointers */
switch (adapter->num_tx_queues) {
- case 2:
- tdba = adapter->tx_ring[1].dma;
- tdlen = adapter->tx_ring[1].count *
- sizeof(struct e1000_tx_desc);
- E1000_WRITE_REG(hw, TDBAL1, (tdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(hw, TDBAH1, (tdba >> 32));
- E1000_WRITE_REG(hw, TDLEN1, tdlen);
- E1000_WRITE_REG(hw, TDH1, 0);
- E1000_WRITE_REG(hw, TDT1, 0);
- adapter->tx_ring[1].tdh = E1000_TDH1;
- adapter->tx_ring[1].tdt = E1000_TDT1;
- /* Fall Through */
case 1:
default:
tdba = adapter->tx_ring[0].dma;
@@ -1477,6 +1350,10 @@ e1000_configure_tx(struct e1000_adapter *adapter)
ipgr1 = DEFAULT_82542_TIPG_IPGR1;
ipgr2 = DEFAULT_82542_TIPG_IPGR2;
break;
+ case e1000_80003es2lan:
+ ipgr1 = DEFAULT_82543_TIPG_IPGR1;
+ ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2;
+ break;
default:
ipgr1 = DEFAULT_82543_TIPG_IPGR1;
ipgr2 = DEFAULT_82543_TIPG_IPGR2;
@@ -1497,10 +1374,13 @@ e1000_configure_tx(struct e1000_adapter *adapter)
tctl = E1000_READ_REG(hw, TCTL);
tctl &= ~E1000_TCTL_CT;
- tctl |= E1000_TCTL_EN | E1000_TCTL_PSP | E1000_TCTL_RTLC |
+ tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
- E1000_WRITE_REG(hw, TCTL, tctl);
+#ifdef DISABLE_MULR
+ /* disable Multiple Reads for debugging */
+ tctl &= ~E1000_TCTL_MULR;
+#endif
if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) {
tarc = E1000_READ_REG(hw, TARC0);
@@ -1513,6 +1393,15 @@ e1000_configure_tx(struct e1000_adapter *adapter)
else
tarc |= (1 << 28);
E1000_WRITE_REG(hw, TARC1, tarc);
+ } else if (hw->mac_type == e1000_80003es2lan) {
+ tarc = E1000_READ_REG(hw, TARC0);
+ tarc |= 1;
+ if (hw->media_type == e1000_media_type_internal_serdes)
+ tarc |= (1 << 20);
+ E1000_WRITE_REG(hw, TARC0, tarc);
+ tarc = E1000_READ_REG(hw, TARC1);
+ tarc |= 1;
+ E1000_WRITE_REG(hw, TARC1, tarc);
}
e1000_config_collision_dist(hw);
@@ -1531,6 +1420,9 @@ e1000_configure_tx(struct e1000_adapter *adapter)
if (hw->mac_type == e1000_82544 &&
hw->bus_type == e1000_bus_type_pcix)
adapter->pcix_82544 = 1;
+
+ E1000_WRITE_REG(hw, TCTL, tctl);
+
}
/**
@@ -1790,12 +1682,9 @@ e1000_configure_rx(struct e1000_adapter *adapter)
uint64_t rdba;
struct e1000_hw *hw = &adapter->hw;
uint32_t rdlen, rctl, rxcsum, ctrl_ext;
-#ifdef CONFIG_E1000_MQ
- uint32_t reta, mrqc;
- int i;
-#endif
if (adapter->rx_ps_pages) {
+ /* this is a 32 byte descriptor */
rdlen = adapter->rx_ring[0].count *
sizeof(union e1000_rx_desc_packet_split);
adapter->clean_rx = e1000_clean_rx_irq_ps;
@@ -1837,18 +1726,6 @@ e1000_configure_rx(struct e1000_adapter *adapter)
/* Setup the HW Rx Head and Tail Descriptor Pointers and
* the Base and Length of the Rx Descriptor Ring */
switch (adapter->num_rx_queues) {
-#ifdef CONFIG_E1000_MQ
- case 2:
- rdba = adapter->rx_ring[1].dma;
- E1000_WRITE_REG(hw, RDBAL1, (rdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(hw, RDBAH1, (rdba >> 32));
- E1000_WRITE_REG(hw, RDLEN1, rdlen);
- E1000_WRITE_REG(hw, RDH1, 0);
- E1000_WRITE_REG(hw, RDT1, 0);
- adapter->rx_ring[1].rdh = E1000_RDH1;
- adapter->rx_ring[1].rdt = E1000_RDT1;
- /* Fall Through */
-#endif
case 1:
default:
rdba = adapter->rx_ring[0].dma;
@@ -1862,46 +1739,6 @@ e1000_configure_rx(struct e1000_adapter *adapter)
break;
}
-#ifdef CONFIG_E1000_MQ
- if (adapter->num_rx_queues > 1) {
- uint32_t random[10];
-
- get_random_bytes(&random[0], 40);
-
- if (hw->mac_type <= e1000_82572) {
- E1000_WRITE_REG(hw, RSSIR, 0);
- E1000_WRITE_REG(hw, RSSIM, 0);
- }
-
- switch (adapter->num_rx_queues) {
- case 2:
- default:
- reta = 0x00800080;
- mrqc = E1000_MRQC_ENABLE_RSS_2Q;
- break;
- }
-
- /* Fill out redirection table */
- for (i = 0; i < 32; i++)
- E1000_WRITE_REG_ARRAY(hw, RETA, i, reta);
- /* Fill out hash function seeds */
- for (i = 0; i < 10; i++)
- E1000_WRITE_REG_ARRAY(hw, RSSRK, i, random[i]);
-
- mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 |
- E1000_MRQC_RSS_FIELD_IPV4_TCP);
- E1000_WRITE_REG(hw, MRQC, mrqc);
- }
-
- /* Multiqueue and packet checksumming are mutually exclusive. */
- if (hw->mac_type >= e1000_82571) {
- rxcsum = E1000_READ_REG(hw, RXCSUM);
- rxcsum |= E1000_RXCSUM_PCSD;
- E1000_WRITE_REG(hw, RXCSUM, rxcsum);
- }
-
-#else
-
/* Enable 82543 Receive Checksum Offload for TCP and UDP */
if (hw->mac_type >= e1000_82543) {
rxcsum = E1000_READ_REG(hw, RXCSUM);
@@ -1920,7 +1757,6 @@ e1000_configure_rx(struct e1000_adapter *adapter)
}
E1000_WRITE_REG(hw, RXCSUM, rxcsum);
}
-#endif /* CONFIG_E1000_MQ */
if (hw->mac_type == e1000_82573)
E1000_WRITE_REG(hw, ERT, 0x0100);
@@ -2392,7 +2228,7 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct e1000_tx_ring *txdr = adapter->tx_ring;
- uint32_t link;
+ uint32_t link, tctl;
e1000_check_for_link(&adapter->hw);
if (adapter->hw.mac_type == e1000_82573) {
@@ -2418,20 +2254,61 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
adapter->link_duplex == FULL_DUPLEX ?
"Full Duplex" : "Half Duplex");
- /* tweak tx_queue_len according to speed/duplex */
+ /* tweak tx_queue_len according to speed/duplex
+ * and adjust the timeout factor */
netdev->tx_queue_len = adapter->tx_queue_len;
adapter->tx_timeout_factor = 1;
- if (adapter->link_duplex == HALF_DUPLEX) {
+ adapter->txb2b = 1;
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ adapter->txb2b = 0;
+ netdev->tx_queue_len = 10;
+ adapter->tx_timeout_factor = 8;
+ break;
+ case SPEED_100:
+ adapter->txb2b = 0;
+ netdev->tx_queue_len = 100;
+ /* maybe add some timeout factor ? */
+ break;
+ }
+
+ if ((adapter->hw.mac_type == e1000_82571 ||
+ adapter->hw.mac_type == e1000_82572) &&
+ adapter->txb2b == 0) {
+#define SPEED_MODE_BIT (1 << 21)
+ uint32_t tarc0;
+ tarc0 = E1000_READ_REG(&adapter->hw, TARC0);
+ tarc0 &= ~SPEED_MODE_BIT;
+ E1000_WRITE_REG(&adapter->hw, TARC0, tarc0);
+ }
+
+#ifdef NETIF_F_TSO
+ /* disable TSO for pcie and 10/100 speeds, to avoid
+ * some hardware issues */
+ if (!adapter->tso_force &&
+ adapter->hw.bus_type == e1000_bus_type_pci_express){
switch (adapter->link_speed) {
case SPEED_10:
- netdev->tx_queue_len = 10;
- adapter->tx_timeout_factor = 8;
- break;
case SPEED_100:
- netdev->tx_queue_len = 100;
+ DPRINTK(PROBE,INFO,
+ "10/100 speed: disabling TSO\n");
+ netdev->features &= ~NETIF_F_TSO;
+ break;
+ case SPEED_1000:
+ netdev->features |= NETIF_F_TSO;
+ break;
+ default:
+ /* oops */
break;
}
}
+#endif
+
+ /* enable transmits in the hardware, need to do this
+ * after setting TARC0 */
+ tctl = E1000_READ_REG(&adapter->hw, TCTL);
+ tctl |= E1000_TCTL_EN;
+ E1000_WRITE_REG(&adapter->hw, TCTL, tctl);
netif_carrier_on(netdev);
netif_wake_queue(netdev);
@@ -2446,6 +2323,16 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
netif_carrier_off(netdev);
netif_stop_queue(netdev);
mod_timer(&adapter->phy_info_timer, jiffies + 2 * HZ);
+
+ /* 80003ES2LAN workaround--
+ * For packet buffer work-around on link down event;
+ * disable receives in the ISR and
+ * reset device here in the watchdog
+ */
+ if (adapter->hw.mac_type == e1000_80003es2lan) {
+ /* reset device */
+ schedule_work(&adapter->reset_task);
+ }
}
e1000_smartspeed(adapter);
@@ -2465,16 +2352,14 @@ e1000_watchdog_task(struct e1000_adapter *adapter)
e1000_update_adaptive(&adapter->hw);
-#ifdef CONFIG_E1000_MQ
- txdr = *per_cpu_ptr(adapter->cpu_tx_ring, smp_processor_id());
-#endif
if (!netif_carrier_ok(netdev)) {
if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
/* We've lost link, so the controller stops DMA,
* but we've got queued Tx work that's never going
* to get done, so reset controller to flush Tx.
* (Do the reset outside of interrupt context). */
- schedule_work(&adapter->tx_timeout_task);
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
}
}
@@ -2649,9 +2534,9 @@ e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
/* Workaround for Controller erratum --
* descriptor for non-tso packet in a linear SKB that follows a
* tso gets written back prematurely before the data is fully
- * DMAd to the controller */
+ * DMA'd to the controller */
if (!skb->data_len && tx_ring->last_tx_tso &&
- !skb_shinfo(skb)->tso_size) {
+ !skb_shinfo(skb)->tso_size) {
tx_ring->last_tx_tso = 0;
size -= 4;
}
@@ -2840,7 +2725,7 @@ e1000_transfer_dhcp_info(struct e1000_adapter *adapter, struct sk_buff *skb)
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) {
struct ethhdr *eth = (struct ethhdr *) skb->data;
if ((htons(ETH_P_IP) == eth->h_proto)) {
const struct iphdr *ip =
@@ -2881,11 +2766,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
unsigned int f;
len -= skb->data_len;
-#ifdef CONFIG_E1000_MQ
- tx_ring = *per_cpu_ptr(adapter->cpu_tx_ring, smp_processor_id());
-#else
tx_ring = adapter->tx_ring;
-#endif
if (unlikely(skb->len <= 0)) {
dev_kfree_skb_any(skb);
@@ -2905,21 +2786,29 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
max_per_txd = min(mss << 2, max_per_txd);
max_txd_pwr = fls(max_per_txd) - 1;
- /* TSO Workaround for 82571/2 Controllers -- if skb->data
+ /* TSO Workaround for 82571/2/3 Controllers -- if skb->data
* points to just header, pull a few bytes of payload from
* frags into skb->data */
hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
- if (skb->data_len && (hdr_len == (skb->len - skb->data_len)) &&
- (adapter->hw.mac_type == e1000_82571 ||
- adapter->hw.mac_type == e1000_82572)) {
- unsigned int pull_size;
- pull_size = min((unsigned int)4, skb->data_len);
- if (!__pskb_pull_tail(skb, pull_size)) {
- printk(KERN_ERR "__pskb_pull_tail failed.\n");
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
+ if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) {
+ switch (adapter->hw.mac_type) {
+ unsigned int pull_size;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_82573:
+ pull_size = min((unsigned int)4, skb->data_len);
+ if (!__pskb_pull_tail(skb, pull_size)) {
+ printk(KERN_ERR
+ "__pskb_pull_tail failed.\n");
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+ len = skb->len - skb->data_len;
+ break;
+ default:
+ /* do nothing */
+ break;
}
- len = skb->len - skb->data_len;
}
}
@@ -2935,7 +2824,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
#ifdef NETIF_F_TSO
/* Controller Erratum workaround */
if (!skb->data_len && tx_ring->last_tx_tso &&
- !skb_shinfo(skb)->tso_size)
+ !skb_shinfo(skb)->tso_size)
count++;
#endif
@@ -2958,7 +2847,9 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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);
@@ -3036,15 +2927,15 @@ e1000_tx_timeout(struct net_device *netdev)
struct e1000_adapter *adapter = netdev_priv(netdev);
/* Do the reset outside of interrupt context */
- schedule_work(&adapter->tx_timeout_task);
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
}
static void
-e1000_tx_timeout_task(struct net_device *netdev)
+e1000_reset_task(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
- adapter->tx_timeout_count++;
e1000_down(adapter);
e1000_up(adapter);
}
@@ -3079,6 +2970,7 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
{
struct e1000_adapter *adapter = netdev_priv(netdev);
int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
+ uint16_t eeprom_data = 0;
if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
(max_frame > MAX_JUMBO_FRAME_SIZE)) {
@@ -3090,14 +2982,28 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
switch (adapter->hw.mac_type) {
case e1000_82542_rev2_0:
case e1000_82542_rev2_1:
- case e1000_82573:
if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n");
return -EINVAL;
}
break;
+ case e1000_82573:
+ /* only enable jumbo frames if ASPM is disabled completely
+ * this means both bits must be zero in 0x1A bits 3:2 */
+ e1000_read_eeprom(&adapter->hw, EEPROM_INIT_3GIO_3, 1,
+ &eeprom_data);
+ if (eeprom_data & EEPROM_WORD1A_ASPM_MASK) {
+ if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR,
+ "Jumbo Frames not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ }
+ /* fall through to get support */
case e1000_82571:
case e1000_82572:
+ case e1000_80003es2lan:
#define MAX_STD_JUMBO_FRAME_SIZE 9234
if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n");
@@ -3251,11 +3157,15 @@ e1000_update_stats(struct e1000_adapter *adapter)
/* Rx Errors */
+ /* RLEC on some newer hardware can be incorrect so build
+ * our own version based on RUC and ROC */
adapter->net_stats.rx_errors = adapter->stats.rxerrc +
adapter->stats.crcerrs + adapter->stats.algnerrc +
- adapter->stats.rlec + adapter->stats.cexterr;
+ adapter->stats.ruc + adapter->stats.roc +
+ adapter->stats.cexterr;
adapter->net_stats.rx_dropped = 0;
- adapter->net_stats.rx_length_errors = adapter->stats.rlec;
+ adapter->net_stats.rx_length_errors = adapter->stats.ruc +
+ adapter->stats.roc;
adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
@@ -3288,29 +3198,6 @@ e1000_update_stats(struct e1000_adapter *adapter)
spin_unlock_irqrestore(&adapter->stats_lock, flags);
}
-#ifdef CONFIG_E1000_MQ
-void
-e1000_rx_schedule(void *data)
-{
- struct net_device *poll_dev, *netdev = data;
- struct e1000_adapter *adapter = netdev->priv;
- int this_cpu = get_cpu();
-
- poll_dev = *per_cpu_ptr(adapter->cpu_netdev, this_cpu);
- if (poll_dev == NULL) {
- put_cpu();
- return;
- }
-
- if (likely(netif_rx_schedule_prep(poll_dev)))
- __netif_rx_schedule(poll_dev);
- else
- e1000_irq_enable(adapter);
-
- put_cpu();
-}
-#endif
-
/**
* e1000_intr - Interrupt Handler
* @irq: interrupt number
@@ -3324,7 +3211,7 @@ e1000_intr(int irq, void *data, struct pt_regs *regs)
struct net_device *netdev = data;
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
- uint32_t icr = E1000_READ_REG(hw, ICR);
+ uint32_t rctl, icr = E1000_READ_REG(hw, ICR);
#ifndef CONFIG_E1000_NAPI
int i;
#else
@@ -3346,6 +3233,17 @@ e1000_intr(int irq, void *data, struct pt_regs *regs)
if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
hw->get_link_status = 1;
+ /* 80003ES2LAN workaround--
+ * For packet buffer work-around on link down event;
+ * disable receives here in the ISR and
+ * reset adapter in watchdog
+ */
+ if (netif_carrier_ok(netdev) &&
+ (adapter->hw.mac_type == e1000_80003es2lan)) {
+ /* disable receives */
+ rctl = E1000_READ_REG(hw, RCTL);
+ E1000_WRITE_REG(hw, RCTL, rctl & ~E1000_RCTL_EN);
+ }
mod_timer(&adapter->watchdog_timer, jiffies);
}
@@ -3355,26 +3253,11 @@ e1000_intr(int irq, void *data, struct pt_regs *regs)
E1000_WRITE_REG(hw, IMC, ~0);
E1000_WRITE_FLUSH(hw);
}
-#ifdef CONFIG_E1000_MQ
- if (atomic_read(&adapter->rx_sched_call_data.count) == 0) {
- /* We must setup the cpumask once count == 0 since
- * each cpu bit is cleared when the work is done. */
- adapter->rx_sched_call_data.cpumask = adapter->cpumask;
- atomic_add(adapter->num_rx_queues - 1, &adapter->irq_sem);
- atomic_set(&adapter->rx_sched_call_data.count,
- adapter->num_rx_queues);
- smp_call_async_mask(&adapter->rx_sched_call_data);
- } else {
- printk("call_data.count == %u\n", atomic_read(&adapter->rx_sched_call_data.count));
- }
-#else /* if !CONFIG_E1000_MQ */
if (likely(netif_rx_schedule_prep(&adapter->polling_netdev[0])))
__netif_rx_schedule(&adapter->polling_netdev[0]);
else
e1000_irq_enable(adapter);
-#endif /* CONFIG_E1000_MQ */
-
-#else /* if !CONFIG_E1000_NAPI */
+#else
/* 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.
@@ -3398,7 +3281,7 @@ e1000_intr(int irq, void *data, struct pt_regs *regs)
if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
e1000_irq_enable(adapter);
-#endif /* CONFIG_E1000_NAPI */
+#endif
return IRQ_HANDLED;
}
@@ -3474,6 +3357,9 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
struct e1000_tx_desc *tx_desc, *eop_desc;
struct e1000_buffer *buffer_info;
unsigned int i, eop;
+#ifdef CONFIG_E1000_NAPI
+ unsigned int count = 0;
+#endif
boolean_t cleaned = FALSE;
i = tx_ring->next_to_clean;
@@ -3486,21 +3372,20 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
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));
if (unlikely(++i == tx_ring->count)) i = 0;
}
-#ifdef CONFIG_E1000_MQ
- tx_ring->tx_stats.packets++;
-#endif
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
+#ifdef CONFIG_E1000_NAPI
+#define E1000_TX_WEIGHT 64
+ /* weight of a sort for tx, to avoid endless transmit cleanup */
+ if (count++ == E1000_TX_WEIGHT) break;
+#endif
}
tx_ring->next_to_clean = i;
@@ -3519,7 +3404,7 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter,
adapter->detect_tx_hung = FALSE;
if (tx_ring->buffer_info[eop].dma &&
time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
- adapter->tx_timeout_factor * HZ)
+ (adapter->tx_timeout_factor * HZ))
&& !(E1000_READ_REG(&adapter->hw, STATUS) &
E1000_STATUS_TXOFF)) {
@@ -3644,10 +3529,15 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
skb = buffer_info->skb;
buffer_info->skb = NULL;
+ prefetch(skb->data - NET_IP_ALIGN);
+
if (++i == rx_ring->count) i = 0;
next_rxd = E1000_RX_DESC(*rx_ring, i);
+ prefetch(next_rxd);
+
next_buffer = &rx_ring->buffer_info[i];
next_skb = next_buffer->skb;
+ prefetch(next_skb->data - NET_IP_ALIGN);
cleaned = TRUE;
cleaned_count++;
@@ -3733,10 +3623,6 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter,
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
-#ifdef CONFIG_E1000_MQ
- rx_ring->rx_stats.packets++;
- rx_ring->rx_stats.bytes += length;
-#endif
next_desc:
rx_desc->status = 0;
@@ -3747,6 +3633,7 @@ next_desc:
cleaned_count = 0;
}
+ /* use prefetched values */
rx_desc = next_rxd;
buffer_info = next_buffer;
}
@@ -3789,9 +3676,9 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
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];
ps_page = &rx_ring->ps_page[i];
ps_page_dma = &rx_ring->ps_page_dma[i];
#ifdef CONFIG_E1000_NAPI
@@ -3801,10 +3688,16 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
#endif
skb = buffer_info->skb;
+ /* in the packet split case this is header only */
+ prefetch(skb->data - NET_IP_ALIGN);
+
if (++i == rx_ring->count) i = 0;
next_rxd = E1000_RX_DESC_PS(*rx_ring, i);
+ prefetch(next_rxd);
+
next_buffer = &rx_ring->buffer_info[i];
next_skb = next_buffer->skb;
+ prefetch(next_skb->data - NET_IP_ALIGN);
cleaned = TRUE;
cleaned_count++;
@@ -3836,23 +3729,49 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
/* Good Receive */
skb_put(skb, length);
+ {
+ /* this looks ugly, but it seems compiler issues make it
+ more efficient than reusing j */
+ int l1 = le16_to_cpu(rx_desc->wb.upper.length[0]);
+
+ /* page alloc/put takes too long and effects small packet
+ * throughput, so unsplit small packets and save the alloc/put*/
+ if (l1 && ((length + l1) < E1000_CB_LENGTH)) {
+ u8 *vaddr;
+ /* there is no documentation about how to call
+ * kmap_atomic, so we can't hold the mapping
+ * very long */
+ pci_dma_sync_single_for_cpu(pdev,
+ ps_page_dma->ps_page_dma[0],
+ PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+ vaddr = kmap_atomic(ps_page->ps_page[0],
+ KM_SKB_DATA_SOFTIRQ);
+ memcpy(skb->tail, vaddr, l1);
+ kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+ pci_dma_sync_single_for_device(pdev,
+ ps_page_dma->ps_page_dma[0],
+ PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ skb_put(skb, l1);
+ length += l1;
+ goto copydone;
+ } /* if */
+ }
+
for (j = 0; j < adapter->rx_ps_pages; j++) {
- if (!(length = le16_to_cpu(rx_desc->wb.upper.length[j])))
+ if (!(length= le16_to_cpu(rx_desc->wb.upper.length[j])))
break;
-
pci_unmap_page(pdev, ps_page_dma->ps_page_dma[j],
PAGE_SIZE, PCI_DMA_FROMDEVICE);
ps_page_dma->ps_page_dma[j] = 0;
- skb_shinfo(skb)->frags[j].page =
- ps_page->ps_page[j];
+ skb_fill_page_desc(skb, j, ps_page->ps_page[j], 0,
+ length);
ps_page->ps_page[j] = NULL;
- skb_shinfo(skb)->frags[j].page_offset = 0;
- skb_shinfo(skb)->frags[j].size = length;
- skb_shinfo(skb)->nr_frags++;
skb->len += length;
skb->data_len += length;
}
+copydone:
e1000_rx_checksum(adapter, staterr,
le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
skb->protocol = eth_type_trans(skb, netdev);
@@ -3878,10 +3797,6 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
}
#endif /* CONFIG_E1000_NAPI */
netdev->last_rx = jiffies;
-#ifdef CONFIG_E1000_MQ
- rx_ring->rx_stats.packets++;
- rx_ring->rx_stats.bytes += length;
-#endif
next_desc:
rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
@@ -3893,6 +3808,7 @@ next_desc:
cleaned_count = 0;
}
+ /* use prefetched values */
rx_desc = next_rxd;
buffer_info = next_buffer;
@@ -3936,7 +3852,6 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
goto map_skb;
}
-
if (unlikely(!skb)) {
/* Better luck next round */
adapter->alloc_rx_buff_failed++;
@@ -4242,7 +4157,7 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
spin_unlock_irqrestore(&adapter->stats_lock, flags);
return -EIO;
}
- if (adapter->hw.phy_type == e1000_phy_m88) {
+ if (adapter->hw.phy_type == e1000_media_type_copper) {
switch (data->reg_num) {
case PHY_CTRL:
if (mii_reg & MII_CR_POWER_DOWN)
@@ -4258,8 +4173,8 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
else
spddplx = SPEED_10;
spddplx += (mii_reg & 0x100)
- ? FULL_DUPLEX :
- HALF_DUPLEX;
+ ? DUPLEX_FULL :
+ DUPLEX_HALF;
retval = e1000_set_spd_dplx(adapter,
spddplx);
if (retval) {
@@ -4489,8 +4404,8 @@ e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx)
}
#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
+/* Save/restore 16 or 64 dwords of PCI config space depending on which
+ * bus we're on (PCI(X) vs. PCI-E)
*/
#define PCIE_CONFIG_SPACE_LEN 256
#define PCI_CONFIG_SPACE_LEN 64
@@ -4500,6 +4415,7 @@ 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
@@ -4523,8 +4439,10 @@ 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
@@ -4552,8 +4470,8 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
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 */
+ /* Implement our own version of pci_save_state(pdev) because pci-
+ * express adapters have 256-byte config spaces. */
retval = e1000_pci_save_state(adapter);
if (retval)
return retval;
@@ -4610,7 +4528,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
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 */
+ retval = pci_enable_wake(pdev, PCI_D3cold, 0);
if (retval)
DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
}
@@ -4626,7 +4544,8 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
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");
+ DPRINTK(PROBE, ERR,
+ "Error enabling D3 cold wake\n");
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 05:41:54 +0000