/*******************************************************************************
- Copyright(c) 1999 - 2004 Intel Corporation. All rights reserved.
+ Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
*******************************************************************************/
#include "e1000.h"
-#include <linux/rtnetlink.h>
/* Change Log
- *
- * 5.2.51 5/14/04
- * o set default configuration to 'NAPI disabled'. NAPI enabled driver
- * causes kernel panic when the interface is shutdown while data is being
- * transferred.
- * 5.2.47 5/04/04
- * o fixed ethtool -t implementation
- * 5.2.45 4/29/04
- * o fixed ethtool -e implementation
- * o Support for ethtool ops [Stephen Hemminger (shemminger@osdl.org)]
- * 5.2.42 4/26/04
- * o Added support for the DPRINTK macro for enhanced error logging. Some
- * parts of the patch were supplied by Jon Mason.
- * o Move the register_netdevice() donw in the probe routine due to a
- * loading/unloading test issue.
- * o Added a long RX byte count the the extra ethtool data members for BER
- * testing purposes.
- * 5.2.39 3/12/04
+ * 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";
-char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
-char e1000_driver_version[] = "5.2.52-k4";
-char e1000_copyright[] = "Copyright (c) 1999-2004 Intel Corporation.";
+static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
+#ifndef CONFIG_E1000_NAPI
+#define DRIVERNAPI
+#else
+#define DRIVERNAPI "-NAPI"
+#endif
+#define DRV_VERSION "6.3.9-k4"DRIVERNAPI
+char e1000_driver_version[] = DRV_VERSION;
+static char e1000_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
/* e1000_pci_tbl - PCI Device ID Table
*
- * Wildcard entries (PCI_ANY_ID) should come last
* Last entry must be all 0s
*
- * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
- * Class, Class Mask, private data (not used) }
+ * Macro expands to...
+ * {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
*/
static struct pci_device_id e1000_pci_tbl[] = {
- {0x8086, 0x1000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x100C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x100D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x100E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x100F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1011, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1015, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1016, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1017, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1018, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x101D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x101E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1026, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1027, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1075, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1076, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1077, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1078, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x1079, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x107A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x107B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ INTEL_E1000_ETHERNET_DEVICE(0x1000),
+ INTEL_E1000_ETHERNET_DEVICE(0x1001),
+ INTEL_E1000_ETHERNET_DEVICE(0x1004),
+ INTEL_E1000_ETHERNET_DEVICE(0x1008),
+ INTEL_E1000_ETHERNET_DEVICE(0x1009),
+ INTEL_E1000_ETHERNET_DEVICE(0x100C),
+ INTEL_E1000_ETHERNET_DEVICE(0x100D),
+ INTEL_E1000_ETHERNET_DEVICE(0x100E),
+ INTEL_E1000_ETHERNET_DEVICE(0x100F),
+ INTEL_E1000_ETHERNET_DEVICE(0x1010),
+ INTEL_E1000_ETHERNET_DEVICE(0x1011),
+ INTEL_E1000_ETHERNET_DEVICE(0x1012),
+ INTEL_E1000_ETHERNET_DEVICE(0x1013),
+ INTEL_E1000_ETHERNET_DEVICE(0x1014),
+ INTEL_E1000_ETHERNET_DEVICE(0x1015),
+ INTEL_E1000_ETHERNET_DEVICE(0x1016),
+ INTEL_E1000_ETHERNET_DEVICE(0x1017),
+ INTEL_E1000_ETHERNET_DEVICE(0x1018),
+ INTEL_E1000_ETHERNET_DEVICE(0x1019),
+ INTEL_E1000_ETHERNET_DEVICE(0x101A),
+ INTEL_E1000_ETHERNET_DEVICE(0x101D),
+ INTEL_E1000_ETHERNET_DEVICE(0x101E),
+ INTEL_E1000_ETHERNET_DEVICE(0x1026),
+ INTEL_E1000_ETHERNET_DEVICE(0x1027),
+ INTEL_E1000_ETHERNET_DEVICE(0x1028),
+ INTEL_E1000_ETHERNET_DEVICE(0x105E),
+ INTEL_E1000_ETHERNET_DEVICE(0x105F),
+ INTEL_E1000_ETHERNET_DEVICE(0x1060),
+ INTEL_E1000_ETHERNET_DEVICE(0x1075),
+ INTEL_E1000_ETHERNET_DEVICE(0x1076),
+ INTEL_E1000_ETHERNET_DEVICE(0x1077),
+ INTEL_E1000_ETHERNET_DEVICE(0x1078),
+ INTEL_E1000_ETHERNET_DEVICE(0x1079),
+ INTEL_E1000_ETHERNET_DEVICE(0x107A),
+ INTEL_E1000_ETHERNET_DEVICE(0x107B),
+ INTEL_E1000_ETHERNET_DEVICE(0x107C),
+ INTEL_E1000_ETHERNET_DEVICE(0x107D),
+ INTEL_E1000_ETHERNET_DEVICE(0x107E),
+ INTEL_E1000_ETHERNET_DEVICE(0x107F),
+ INTEL_E1000_ETHERNET_DEVICE(0x108A),
+ INTEL_E1000_ETHERNET_DEVICE(0x108B),
+ INTEL_E1000_ETHERNET_DEVICE(0x108C),
+ INTEL_E1000_ETHERNET_DEVICE(0x1099),
+ INTEL_E1000_ETHERNET_DEVICE(0x109A),
+ INTEL_E1000_ETHERNET_DEVICE(0x10B5),
/* required last entry */
{0,}
};
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_tx_resources(struct e1000_adapter *adapter);
-int e1000_setup_rx_resources(struct e1000_adapter *adapter);
-void e1000_free_tx_resources(struct e1000_adapter *adapter);
-void e1000_free_rx_resources(struct e1000_adapter *adapter);
+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);
+static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr);
+static void e1000_free_tx_resources(struct e1000_adapter *adapter,
+ 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);
/* Local Function Prototypes */
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);
static void e1000_configure_tx(struct e1000_adapter *adapter);
static void e1000_configure_rx(struct e1000_adapter *adapter);
static void e1000_setup_rctl(struct e1000_adapter *adapter);
-static void e1000_clean_tx_ring(struct e1000_adapter *adapter);
-static void e1000_clean_rx_ring(struct e1000_adapter *adapter);
+static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
+static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
+static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
static void e1000_set_multi(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data);
static void e1000_watchdog(unsigned long data);
+static void e1000_watchdog_task(struct e1000_adapter *adapter);
static void e1000_82547_tx_fifo_stall(unsigned long data);
static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
static int e1000_set_mac(struct net_device *netdev, void *p);
-static inline void e1000_irq_disable(struct e1000_adapter *adapter);
-static inline void e1000_irq_enable(struct e1000_adapter *adapter);
static irqreturn_t e1000_intr(int irq, void *data, struct pt_regs *regs);
-static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter);
+static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring);
#ifdef CONFIG_E1000_NAPI
-static int e1000_clean(struct net_device *netdev, int *budget);
+static int e1000_clean(struct net_device *poll_dev, int *budget);
static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
int *work_done, int work_to_do);
+static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do);
#else
-static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter);
+static boolean_t e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
+static boolean_t e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring);
#endif
-static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter);
+static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count);
+static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count);
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 set_ethtool_ops(struct net_device *netdev);
+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 inline void e1000_rx_checksum(struct e1000_adapter *adapter,
- struct e1000_rx_desc *rx_desc,
- struct sk_buff *skb);
static void e1000_tx_timeout(struct net_device *dev);
static void e1000_tx_timeout_task(struct net_device *dev);
static void e1000_smartspeed(struct e1000_adapter *adapter);
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
static void e1000_restore_vlan(struct e1000_adapter *adapter);
-static int e1000_notify_reboot(struct notifier_block *, unsigned long event, void *ptr);
-static int e1000_suspend(struct pci_dev *pdev, uint32_t state);
#ifdef CONFIG_PM
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
static int e1000_resume(struct pci_dev *pdev);
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
/* for netdump / net console */
-static void e1000_netpoll (struct net_device *dev);
+static void e1000_netpoll (struct net_device *netdev);
#endif
-struct notifier_block e1000_notifier_reboot = {
- .notifier_call = e1000_notify_reboot,
- .next = NULL,
- .priority = 0
-};
+#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,
.id_table = e1000_pci_tbl,
MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
-static int debug = 3;
+static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
printk(KERN_INFO "%s\n", e1000_copyright);
ret = pci_module_init(&e1000_driver);
- if(ret >= 0) {
- register_reboot_notifier(&e1000_notifier_reboot);
- }
+
return ret;
}
static void __exit
e1000_exit_module(void)
{
- unregister_reboot_notifier(&e1000_notifier_reboot);
pci_unregister_driver(&e1000_driver);
}
module_exit(e1000_exit_module);
+/**
+ * e1000_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+
+static inline void
+e1000_irq_disable(struct e1000_adapter *adapter)
+{
+ atomic_inc(&adapter->irq_sem);
+ E1000_WRITE_REG(&adapter->hw, IMC, ~0);
+ E1000_WRITE_FLUSH(&adapter->hw);
+ synchronize_irq(adapter->pdev->irq);
+}
+
+/**
+ * e1000_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+
+static inline void
+e1000_irq_enable(struct e1000_adapter *adapter)
+{
+ if (likely(atomic_dec_and_test(&adapter->irq_sem))) {
+ E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK);
+ E1000_WRITE_FLUSH(&adapter->hw);
+ }
+}
+
+static void
+e1000_update_mng_vlan(struct e1000_adapter *adapter)
+{
+ 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 &
+ 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) &&
+ !adapter->vlgrp->vlan_devices[old_vid])
+ e1000_vlan_rx_kill_vid(netdev, old_vid);
+ }
+ }
+}
+
+/**
+ * e1000_release_hw_control - release control of the h/w to f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that the
+ * driver is no longer loaded. For AMT version (only with 82573) i
+ * of the f/w this means that the netowrk i/f is closed.
+ *
+ **/
+
+static inline void
+e1000_release_hw_control(struct e1000_adapter *adapter)
+{
+ uint32_t ctrl_ext;
+ uint32_t swsm;
+
+ /* Let firmware taken over control of h/w */
+ switch (adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ break;
+ case e1000_82573:
+ swsm = E1000_READ_REG(&adapter->hw, SWSM);
+ E1000_WRITE_REG(&adapter->hw, SWSM,
+ swsm & ~E1000_SWSM_DRV_LOAD);
+ default:
+ break;
+ }
+}
+
+/**
+ * e1000_get_hw_control - get control of the h/w from f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that
+ * the driver is loaded. For AMT version (only with 82573)
+ * of the f/w this means that the netowrk i/f is open.
+ *
+ **/
+
+static inline void
+e1000_get_hw_control(struct e1000_adapter *adapter)
+{
+ uint32_t ctrl_ext;
+ uint32_t swsm;
+ /* Let firmware know the driver has taken over */
+ switch (adapter->hw.mac_type) {
+ case e1000_82571:
+ case e1000_82572:
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ break;
+ case e1000_82573:
+ swsm = E1000_READ_REG(&adapter->hw, SWSM);
+ E1000_WRITE_REG(&adapter->hw, SWSM,
+ swsm | E1000_SWSM_DRV_LOAD);
+ break;
+ default:
+ break;
+ }
+}
int
e1000_up(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- int err;
+ int i, err;
/* 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) {
+ uint16_t mii_reg;
+ e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &mii_reg);
+ if (mii_reg & MII_CR_POWER_DOWN)
+ e1000_phy_reset(&adapter->hw);
+ }
+
e1000_set_multi(netdev);
e1000_restore_vlan(adapter);
e1000_configure_tx(adapter);
e1000_setup_rctl(adapter);
e1000_configure_rx(adapter);
- e1000_alloc_rx_buffers(adapter);
+ /* call E1000_DESC_UNUSED which always leaves
+ * at least 1 descriptor unused to make sure
+ * 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));
+ }
- if((err = request_irq(adapter->pdev->irq, &e1000_intr,
+#ifdef CONFIG_PCI_MSI
+ if (adapter->hw.mac_type > e1000_82547_rev_2) {
+ adapter->have_msi = TRUE;
+ 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,
SA_SHIRQ | SA_SAMPLE_RANDOM,
- netdev->name, netdev)))
+ netdev->name, netdev))) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate interrupt Error: %d\n", err);
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);
+
+#ifdef CONFIG_E1000_NAPI
+ netif_poll_enable(netdev);
+#endif
e1000_irq_enable(adapter);
return 0;
e1000_down(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
+ boolean_t mng_mode_enabled = (adapter->hw.mac_type >= e1000_82571) &&
+ 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 &&
+ adapter->have_msi == TRUE)
+ pci_disable_msi(adapter->pdev);
+#endif
del_timer_sync(&adapter->tx_fifo_stall_timer);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
+
+#ifdef CONFIG_E1000_NAPI
+ netif_poll_disable(netdev);
+#endif
+ netdev->tx_queue_len = adapter->tx_queue_len;
adapter->link_speed = 0;
adapter->link_duplex = 0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
e1000_reset(adapter);
- e1000_clean_tx_ring(adapter);
- e1000_clean_rx_ring(adapter);
+ e1000_clean_all_tx_rings(adapter);
+ e1000_clean_all_rx_rings(adapter);
+
+ /* Power down the PHY so no link is implied when interface is down *
+ * The PHY cannot be powered down if any of the following is TRUE *
+ * (a) WoL is enabled
+ * (b) AMT is active
+ * (c) SoL/IDER session is active */
+ if (!adapter->wol && adapter->hw.mac_type >= e1000_82540 &&
+ adapter->hw.media_type == e1000_media_type_copper &&
+ !(E1000_READ_REG(&adapter->hw, MANC) & E1000_MANC_SMBUS_EN) &&
+ !mng_mode_enabled &&
+ !e1000_check_phy_reset_block(&adapter->hw)) {
+ uint16_t mii_reg;
+ e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &mii_reg);
+ mii_reg |= MII_CR_POWER_DOWN;
+ e1000_write_phy_reg(&adapter->hw, PHY_CTRL, mii_reg);
+ mdelay(1);
+ }
}
void
e1000_reset(struct e1000_adapter *adapter)
{
uint32_t pba, manc;
+ uint16_t fc_high_water_mark = E1000_FC_HIGH_DIFF;
+
/* Repartition Pba for greater than 9k mtu
* To take effect CTRL.RST is required.
*/
- if(adapter->hw.mac_type < e1000_82547) {
- if(adapter->rx_buffer_len > E1000_RXBUFFER_8192)
- pba = E1000_PBA_40K;
- else
- pba = E1000_PBA_48K;
- } else {
- if(adapter->rx_buffer_len > E1000_RXBUFFER_8192)
- pba = E1000_PBA_22K;
- else
- pba = E1000_PBA_30K;
+ switch (adapter->hw.mac_type) {
+ case e1000_82547:
+ case e1000_82547_rev_2:
+ pba = E1000_PBA_30K;
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ pba = E1000_PBA_38K;
+ break;
+ case e1000_82573:
+ pba = E1000_PBA_12K;
+ break;
+ default:
+ pba = E1000_PBA_48K;
+ break;
+ }
+
+ 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) {
adapter->tx_fifo_head = 0;
adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
adapter->tx_fifo_size =
(E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
atomic_set(&adapter->tx_fifo_stall, 0);
}
+
E1000_WRITE_REG(&adapter->hw, PBA, pba);
/* flow control settings */
- adapter->hw.fc_high_water =
- (pba << E1000_PBA_BYTES_SHIFT) - E1000_FC_HIGH_DIFF;
- adapter->hw.fc_low_water =
- (pba << E1000_PBA_BYTES_SHIFT) - E1000_FC_LOW_DIFF;
+ /* Set the FC high water mark to 90% of the FIFO size.
+ * Required to clear last 3 LSB */
+ fc_high_water_mark = ((pba * 9216)/10) & 0xFFF8;
+
+ 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;
adapter->hw.fc_send_xon = 1;
adapter->hw.fc = adapter->hw.original_fc;
+ /* 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);
- 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 */
E1000_WRITE_REG(&adapter->hw, VET, ETHERNET_IEEE_VLAN_TYPE);
e1000_reset_adaptive(&adapter->hw);
e1000_phy_get_info(&adapter->hw, &adapter->phy_info);
-
- if(adapter->en_mng_pt) {
+ if (adapter->en_mng_pt) {
manc = E1000_READ_REG(&adapter->hw, MANC);
manc |= (E1000_MANC_ARP_EN | E1000_MANC_EN_MNG2HOST);
E1000_WRITE_REG(&adapter->hw, MANC, manc);
{
struct net_device *netdev;
struct e1000_adapter *adapter;
+ unsigned long mmio_start, mmio_len;
+
static int cards_found = 0;
- unsigned long mmio_start;
- int mmio_len;
- int pci_using_dac;
- int i;
- int err;
+ int i, err, pci_using_dac;
uint16_t eeprom_data;
-
- if((err = pci_enable_device(pdev)))
+ uint16_t eeprom_apme_mask = E1000_EEPROM_APME;
+ 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;
}
SET_NETDEV_DEV(netdev, &pdev->dev);
pci_set_drvdata(pdev, netdev);
- adapter = netdev->priv;
+ adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->hw.back = adapter;
adapter->msg_enable = (1 << debug) - 1;
- rtnl_lock();
- /* we need to set the name early since the DPRINTK macro needs it set */
- if (dev_alloc_name(netdev, netdev->name) < 0)
- goto err_free_unlock;
-
mmio_start = pci_resource_start(pdev, BAR_0);
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;
}
netdev->set_mac_address = &e1000_set_mac;
netdev->change_mtu = &e1000_change_mtu;
netdev->do_ioctl = &e1000_ioctl;
- set_ethtool_ops(netdev);
+ e1000_set_ethtool_ops(netdev);
netdev->tx_timeout = &e1000_tx_timeout;
netdev->watchdog_timeo = 5 * HZ;
#ifdef CONFIG_E1000_NAPI
#ifdef CONFIG_NET_POLL_CONTROLLER
netdev->poll_controller = e1000_netpoll;
#endif
+ strcpy(netdev->name, pci_name(pdev));
netdev->mem_start = mmio_start;
netdev->mem_end = mmio_start + mmio_len;
/* setup the private structure */
- if((err = e1000_sw_init(adapter)))
+ if ((err = e1000_sw_init(adapter)))
goto err_sw_init;
- if(adapter->hw.mac_type >= e1000_82543) {
+ 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) {
netdev->features = NETIF_F_SG |
NETIF_F_HW_CSUM |
NETIF_F_HW_VLAN_TX |
NETIF_F_HW_VLAN_RX |
NETIF_F_HW_VLAN_FILTER;
- } else {
- netdev->features = NETIF_F_SG;
}
#ifdef NETIF_F_TSO
-#ifdef BROKEN_ON_NON_IA_ARCHS
- /* Disbaled for now until root-cause is found for
- * hangs reported against non-IA archs. TSO can be
- * enabled using ethtool -K eth<x> tso on */
- 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)
+ 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 */
+ netdev->features |= NETIF_F_LLTX;
+
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 */
- 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->dev_addr)) {
+ if (!is_valid_ether_addr(netdev->perm_addr)) {
+ DPRINTK(PROBE, ERR, "Invalid MAC Address\n");
err = -EIO;
goto err_eeprom;
}
adapter->watchdog_timer.function = &e1000_watchdog;
adapter->watchdog_timer.data = (unsigned long) adapter;
+ INIT_WORK(&adapter->watchdog_task,
+ (void (*)(void *))e1000_watchdog_task, adapter);
+
init_timer(&adapter->phy_info_timer);
adapter->phy_info_timer.function = &e1000_update_phy_info;
adapter->phy_info_timer.data = (unsigned long) adapter;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
- DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n");
e1000_check_options(adapter);
/* Initial Wake on LAN setting
* 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:
break;
+ case e1000_82544:
+ e1000_read_eeprom(&adapter->hw,
+ EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
+ eeprom_apme_mask = E1000_EEPROM_82544_APM;
+ break;
case e1000_82546:
case e1000_82546_rev_3:
- if((E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_FUNC_1)
- && (adapter->hw.media_type == e1000_media_type_copper)) {
+ case e1000_82571:
+ 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 & E1000_EEPROM_APME)
+ if (eeprom_data & eeprom_apme_mask)
adapter->wol |= E1000_WUFC_MAG;
- /* reset the hardware with the new settings */
+ /* 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);
- /* since we are holding the rtnl lock already, call the no-lock version */
- if((err = register_netdevice(netdev)))
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (adapter->hw.mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(&adapter->hw))
+ e1000_get_hw_control(adapter);
+
+ strcpy(netdev->name, "eth%d");
+ if ((err = register_netdev(netdev)))
goto err_register;
+ DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n");
+
cards_found++;
- rtnl_unlock();
return 0;
err_register:
err_eeprom:
iounmap(adapter->hw.hw_addr);
err_ioremap:
-err_free_unlock:
- rtnl_unlock();
free_netdev(netdev);
err_alloc_etherdev:
pci_release_regions(pdev);
e1000_remove(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t manc;
+#ifdef CONFIG_E1000_NAPI
+ int i;
+#endif
+
+ 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);
}
}
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant. */
+ e1000_release_hw_control(adapter);
+
unregister_netdev(netdev);
+#ifdef CONFIG_E1000_NAPI
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ __dev_put(&adapter->polling_netdev[i]);
+#endif
+
+ if (!e1000_check_phy_reset_block(&adapter->hw))
+ e1000_phy_hw_reset(&adapter->hw);
- e1000_phy_hw_reset(&adapter->hw);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+#ifdef CONFIG_E1000_NAPI
+ kfree(adapter->polling_netdev);
+#endif
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);
}
/**
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
+#ifdef CONFIG_E1000_NAPI
+ int i;
+#endif
/* PCI config space info */
pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ adapter->rx_ps_bsize0 = E1000_RXBUFFER_256;
hw->max_frame_size = netdev->mtu +
ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
/* initialize eeprom parameters */
- e1000_init_eeprom_params(hw);
+ if (e1000_init_eeprom_params(hw)) {
+ E1000_ERR("EEPROM initialization failed\n");
+ return -EIO;
+ }
- if((hw->mac_type == e1000_82541) ||
- (hw->mac_type == e1000_82547) ||
- (hw->mac_type == e1000_82541_rev_2) ||
- (hw->mac_type == e1000_82547_rev_2))
+ switch (hw->mac_type) {
+ default:
+ break;
+ case e1000_82541:
+ case e1000_82547:
+ case e1000_82541_rev_2:
+ case e1000_82547_rev_2:
hw->phy_init_script = 1;
+ break;
+ }
e1000_set_media_type(hw);
- if(hw->mac_type < e1000_82543)
- hw->report_tx_early = 0;
- else
- hw->report_tx_early = 1;
-
hw->wait_autoneg_complete = FALSE;
hw->tbi_compatibility_en = TRUE;
hw->adaptive_ifs = TRUE;
/* 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;
}
+#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");
+ return -ENOMEM;
+ }
+
+#ifdef CONFIG_E1000_NAPI
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ adapter->polling_netdev[i].priv = adapter;
+ adapter->polling_netdev[i].poll = &e1000_clean;
+ adapter->polling_netdev[i].weight = 64;
+ dev_hold(&adapter->polling_netdev[i]);
+ set_bit(__LINK_STATE_START, &adapter->polling_netdev[i].state);
+ }
+ spin_lock_init(&adapter->tx_queue_lock);
+#endif
+
atomic_set(&adapter->irq_sem, 1);
spin_lock_init(&adapter->stats_lock);
- spin_lock_init(&adapter->tx_lock);
return 0;
}
+/**
+ * e1000_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ *
+ * We allocate one ring per queue at run-time since we don't know the
+ * number of queues at compile-time. The polling_netdev array is
+ * intended for Multiqueue, but should work fine with a single queue.
+ **/
+
+static int __devinit
+e1000_alloc_queues(struct e1000_adapter *adapter)
+{
+ int size;
+
+ size = sizeof(struct e1000_tx_ring) * adapter->num_tx_queues;
+ adapter->tx_ring = kmalloc(size, GFP_KERNEL);
+ if (!adapter->tx_ring)
+ return -ENOMEM;
+ memset(adapter->tx_ring, 0, size);
+
+ size = sizeof(struct e1000_rx_ring) * adapter->num_rx_queues;
+ adapter->rx_ring = kmalloc(size, GFP_KERNEL);
+ if (!adapter->rx_ring) {
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+ }
+ memset(adapter->rx_ring, 0, size);
+
+#ifdef CONFIG_E1000_NAPI
+ size = sizeof(struct net_device) * adapter->num_rx_queues;
+ adapter->polling_netdev = kmalloc(size, GFP_KERNEL);
+ if (!adapter->polling_netdev) {
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+ return -ENOMEM;
+ }
+ 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
static int
e1000_open(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
int err;
/* allocate transmit descriptors */
- if((err = e1000_setup_tx_resources(adapter)))
+ if ((err = e1000_setup_all_tx_resources(adapter)))
goto err_setup_tx;
/* allocate receive descriptors */
- if((err = e1000_setup_rx_resources(adapter)))
+ 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 &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
+ e1000_update_mng_vlan(adapter);
+ }
- return 0;
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now open */
+ if (adapter->hw.mac_type == e1000_82573 &&
+ e1000_check_mng_mode(&adapter->hw))
+ e1000_get_hw_control(adapter);
+
+ return E1000_SUCCESS;
err_up:
- e1000_free_rx_resources(adapter);
+ e1000_free_all_rx_resources(adapter);
err_setup_rx:
- e1000_free_tx_resources(adapter);
+ e1000_free_all_tx_resources(adapter);
err_setup_tx:
e1000_reset(adapter);
static int
e1000_close(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
e1000_down(adapter);
- e1000_free_tx_resources(adapter);
- e1000_free_rx_resources(adapter);
+ e1000_free_all_tx_resources(adapter);
+ e1000_free_all_rx_resources(adapter);
+
+ if ((adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
+ e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+ }
+
+ /* If AMT is enabled, let the firmware know that the network
+ * interface is now closed */
+ if (adapter->hw.mac_type == e1000_82573 &&
+ e1000_check_mng_mode(&adapter->hw))
+ e1000_release_hw_control(adapter);
return 0;
}
+/**
+ * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
+ * @adapter: address of board private structure
+ * @start: address of beginning of memory
+ * @len: length of memory
+ **/
+static inline boolean_t
+e1000_check_64k_bound(struct e1000_adapter *adapter,
+ void *start, unsigned long len)
+{
+ unsigned long begin = (unsigned long) start;
+ unsigned long end = begin + len;
+
+ /* First rev 82545 and 82546 need to not allow any memory
+ * write location to cross 64k boundary due to errata 23 */
+ if (adapter->hw.mac_type == e1000_82545 ||
+ adapter->hw.mac_type == e1000_82546) {
+ return ((begin ^ (end - 1)) >> 16) != 0 ? FALSE : TRUE;
+ }
+
+ return TRUE;
+}
+
/**
* e1000_setup_tx_resources - allocate Tx resources (Descriptors)
* @adapter: board private structure
+ * @txdr: tx descriptor ring (for a specific queue) to setup
*
* Return 0 on success, negative on failure
**/
-int
-e1000_setup_tx_resources(struct e1000_adapter *adapter)
+static int
+e1000_setup_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *txdr)
{
- struct e1000_desc_ring *txdr = &adapter->tx_ring;
struct pci_dev *pdev = adapter->pdev;
int size;
size = sizeof(struct e1000_buffer) * txdr->count;
- txdr->buffer_info = kmalloc(size, GFP_KERNEL);
- if(!txdr->buffer_info) {
+
+ txdr->buffer_info = vmalloc_node(size, pcibus_to_node(pdev->bus));
+ if (!txdr->buffer_info) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the transmit descriptor ring\n");
return -ENOMEM;
}
memset(txdr->buffer_info, 0, size);
E1000_ROUNDUP(txdr->size, 4096);
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
- if(!txdr->desc) {
- kfree(txdr->buffer_info);
+ if (!txdr->desc) {
+setup_tx_desc_die:
+ vfree(txdr->buffer_info);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the transmit descriptor ring\n");
return -ENOMEM;
}
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
+ void *olddesc = txdr->desc;
+ dma_addr_t olddma = txdr->dma;
+ DPRINTK(TX_ERR, ERR, "txdr align check failed: %u bytes "
+ "at %p\n", txdr->size, txdr->desc);
+ /* Try again, without freeing the previous */
+ txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
+ /* Failed allocation, critical failure */
+ if (!txdr->desc) {
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ goto setup_tx_desc_die;
+ }
+
+ if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
+ /* give up */
+ pci_free_consistent(pdev, txdr->size, txdr->desc,
+ txdr->dma);
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate aligned memory "
+ "for the transmit descriptor ring\n");
+ vfree(txdr->buffer_info);
+ return -ENOMEM;
+ } else {
+ /* Free old allocation, new allocation was successful */
+ pci_free_consistent(pdev, txdr->size, olddesc, olddma);
+ }
+ }
memset(txdr->desc, 0, txdr->size);
txdr->next_to_use = 0;
txdr->next_to_clean = 0;
+ spin_lock_init(&txdr->tx_lock);
return 0;
}
+/**
+ * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int
+e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Tx Queue %u failed\n", i);
+ break;
+ }
+ }
+
+ return err;
+}
+
/**
* e1000_configure_tx - Configure 8254x Transmit Unit after Reset
* @adapter: board private structure
static void
e1000_configure_tx(struct e1000_adapter *adapter)
{
- uint64_t tdba = adapter->tx_ring.dma;
- uint32_t tdlen = adapter->tx_ring.count * sizeof(struct e1000_tx_desc);
- uint32_t tctl, tipg;
-
- E1000_WRITE_REG(&adapter->hw, TDBAL, (tdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(&adapter->hw, TDBAH, (tdba >> 32));
-
- E1000_WRITE_REG(&adapter->hw, TDLEN, tdlen);
+ uint64_t tdba;
+ struct e1000_hw *hw = &adapter->hw;
+ uint32_t tdlen, tctl, tipg, tarc;
+ uint32_t ipgr1, ipgr2;
/* Setup the HW Tx Head and Tail descriptor pointers */
- E1000_WRITE_REG(&adapter->hw, TDH, 0);
- E1000_WRITE_REG(&adapter->hw, TDT, 0);
+ 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;
+ tdlen = adapter->tx_ring[0].count *
+ sizeof(struct e1000_tx_desc);
+ E1000_WRITE_REG(hw, TDBAL, (tdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, TDBAH, (tdba >> 32));
+ E1000_WRITE_REG(hw, TDLEN, tdlen);
+ E1000_WRITE_REG(hw, TDH, 0);
+ E1000_WRITE_REG(hw, TDT, 0);
+ adapter->tx_ring[0].tdh = E1000_TDH;
+ adapter->tx_ring[0].tdt = E1000_TDT;
+ break;
+ }
/* Set the default values for the Tx Inter Packet Gap timer */
- switch (adapter->hw.mac_type) {
+ if (hw->media_type == e1000_media_type_fiber ||
+ hw->media_type == e1000_media_type_internal_serdes)
+ tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
+ else
+ tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
+
+ switch (hw->mac_type) {
case e1000_82542_rev2_0:
case e1000_82542_rev2_1:
tipg = DEFAULT_82542_TIPG_IPGT;
- tipg |= DEFAULT_82542_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
- tipg |= DEFAULT_82542_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
+ ipgr1 = DEFAULT_82542_TIPG_IPGR1;
+ ipgr2 = DEFAULT_82542_TIPG_IPGR2;
break;
default:
- if(adapter->hw.media_type == e1000_media_type_fiber ||
- adapter->hw.media_type == e1000_media_type_internal_serdes)
- tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
- else
- tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
- tipg |= DEFAULT_82543_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
- tipg |= DEFAULT_82543_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
+ ipgr1 = DEFAULT_82543_TIPG_IPGR1;
+ ipgr2 = DEFAULT_82543_TIPG_IPGR2;
+ break;
}
- E1000_WRITE_REG(&adapter->hw, TIPG, tipg);
+ tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
+ tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
+ E1000_WRITE_REG(hw, TIPG, tipg);
/* Set the Tx Interrupt Delay register */
- E1000_WRITE_REG(&adapter->hw, TIDV, adapter->tx_int_delay);
- if(adapter->hw.mac_type >= e1000_82540)
- E1000_WRITE_REG(&adapter->hw, TADV, adapter->tx_abs_int_delay);
+ E1000_WRITE_REG(hw, TIDV, adapter->tx_int_delay);
+ if (hw->mac_type >= e1000_82540)
+ E1000_WRITE_REG(hw, TADV, adapter->tx_abs_int_delay);
/* Program the Transmit Control Register */
- tctl = E1000_READ_REG(&adapter->hw, TCTL);
+ tctl = E1000_READ_REG(hw, TCTL);
tctl &= ~E1000_TCTL_CT;
- tctl |= E1000_TCTL_EN | E1000_TCTL_PSP |
+ tctl |= E1000_TCTL_EN | E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
- E1000_WRITE_REG(&adapter->hw, TCTL, tctl);
+ E1000_WRITE_REG(hw, TCTL, tctl);
+
+ if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) {
+ tarc = E1000_READ_REG(hw, TARC0);
+ tarc |= ((1 << 25) | (1 << 21));
+ E1000_WRITE_REG(hw, TARC0, tarc);
+ tarc = E1000_READ_REG(hw, TARC1);
+ tarc |= (1 << 25);
+ if (tctl & E1000_TCTL_MULR)
+ tarc &= ~(1 << 28);
+ else
+ tarc |= (1 << 28);
+ E1000_WRITE_REG(hw, TARC1, tarc);
+ }
- e1000_config_collision_dist(&adapter->hw);
+ e1000_config_collision_dist(hw);
/* Setup Transmit Descriptor Settings for eop descriptor */
adapter->txd_cmd = E1000_TXD_CMD_IDE | E1000_TXD_CMD_EOP |
E1000_TXD_CMD_IFCS;
- if(adapter->hw.report_tx_early == 1)
- adapter->txd_cmd |= E1000_TXD_CMD_RS;
- else
+ if (hw->mac_type < e1000_82543)
adapter->txd_cmd |= E1000_TXD_CMD_RPS;
+ else
+ adapter->txd_cmd |= E1000_TXD_CMD_RS;
/* Cache if we're 82544 running in PCI-X because we'll
* need this to apply a workaround later in the send path. */
- if(adapter->hw.mac_type == e1000_82544 &&
- adapter->hw.bus_type == e1000_bus_type_pcix)
+ if (hw->mac_type == e1000_82544 &&
+ hw->bus_type == e1000_bus_type_pcix)
adapter->pcix_82544 = 1;
}
/**
* e1000_setup_rx_resources - allocate Rx resources (Descriptors)
* @adapter: board private structure
+ * @rxdr: rx descriptor ring (for a specific queue) to setup
*
* Returns 0 on success, negative on failure
**/
-int
-e1000_setup_rx_resources(struct e1000_adapter *adapter)
+static int
+e1000_setup_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rxdr)
{
- struct e1000_desc_ring *rxdr = &adapter->rx_ring;
struct pci_dev *pdev = adapter->pdev;
- int size;
+ int size, desc_len;
size = sizeof(struct e1000_buffer) * rxdr->count;
- rxdr->buffer_info = kmalloc(size, GFP_KERNEL);
- if(!rxdr->buffer_info) {
+ rxdr->buffer_info = vmalloc_node(size, pcibus_to_node(pdev->bus));
+ if (!rxdr->buffer_info) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
return -ENOMEM;
}
memset(rxdr->buffer_info, 0, size);
+ size = sizeof(struct e1000_ps_page) * rxdr->count;
+ rxdr->ps_page = kmalloc(size, GFP_KERNEL);
+ if (!rxdr->ps_page) {
+ vfree(rxdr->buffer_info);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
+ return -ENOMEM;
+ }
+ memset(rxdr->ps_page, 0, size);
+
+ size = sizeof(struct e1000_ps_page_dma) * rxdr->count;
+ rxdr->ps_page_dma = kmalloc(size, GFP_KERNEL);
+ if (!rxdr->ps_page_dma) {
+ vfree(rxdr->buffer_info);
+ kfree(rxdr->ps_page);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
+ return -ENOMEM;
+ }
+ memset(rxdr->ps_page_dma, 0, size);
+
+ 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);
+
/* Round up to nearest 4K */
- rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
+ rxdr->size = rxdr->count * desc_len;
E1000_ROUNDUP(rxdr->size, 4096);
rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
- if(!rxdr->desc) {
- kfree(rxdr->buffer_info);
+ if (!rxdr->desc) {
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory for the receive descriptor ring\n");
+setup_rx_desc_die:
+ vfree(rxdr->buffer_info);
+ kfree(rxdr->ps_page);
+ kfree(rxdr->ps_page_dma);
return -ENOMEM;
}
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
+ void *olddesc = rxdr->desc;
+ dma_addr_t olddma = rxdr->dma;
+ DPRINTK(RX_ERR, ERR, "rxdr align check failed: %u bytes "
+ "at %p\n", rxdr->size, rxdr->desc);
+ /* Try again, without freeing the previous */
+ rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
+ /* Failed allocation, critical failure */
+ if (!rxdr->desc) {
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate memory "
+ "for the receive descriptor ring\n");
+ goto setup_rx_desc_die;
+ }
+
+ if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
+ /* give up */
+ pci_free_consistent(pdev, rxdr->size, rxdr->desc,
+ rxdr->dma);
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ DPRINTK(PROBE, ERR,
+ "Unable to allocate aligned memory "
+ "for the receive descriptor ring\n");
+ goto setup_rx_desc_die;
+ } else {
+ /* Free old allocation, new allocation was successful */
+ pci_free_consistent(pdev, rxdr->size, olddesc, olddma);
+ }
+ }
memset(rxdr->desc, 0, rxdr->size);
rxdr->next_to_clean = 0;
}
/**
- * e1000_setup_rctl - configure the receive control register
- * @adapter: Board private structure
+ * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
+ * (Descriptors) for all queues
+ * @adapter: board private structure
+ *
+ * If this function returns with an error, then it's possible one or
+ * more of the rings is populated (while the rest are not). It is the
+ * callers duty to clean those orphaned rings.
+ *
+ * Return 0 on success, negative on failure
**/
+int
+e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i, err = 0;
+
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
+ if (err) {
+ DPRINTK(PROBE, ERR,
+ "Allocation for Rx Queue %u failed\n", i);
+ break;
+ }
+ }
+
+ return err;
+}
+
+/**
+ * e1000_setup_rctl - configure the receive control registers
+ * @adapter: Board private structure
+ **/
+#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
+ (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
static void
e1000_setup_rctl(struct e1000_adapter *adapter)
{
- uint32_t rctl;
+ uint32_t rctl, rfctl;
+ uint32_t psrctl = 0;
+#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
+ uint32_t pages = 0;
+#endif
rctl = E1000_READ_REG(&adapter->hw, RCTL);
E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
(adapter->hw.mc_filter_type << E1000_RCTL_MO_SHIFT);
- if(adapter->hw.tbi_compatibility_on == 1)
+ if (adapter->hw.mac_type > e1000_82543)
+ rctl |= E1000_RCTL_SECRC;
+
+ if (adapter->hw.tbi_compatibility_on == 1)
rctl |= E1000_RCTL_SBP;
else
rctl &= ~E1000_RCTL_SBP;
- rctl &= ~(E1000_RCTL_SZ_4096);
- switch (adapter->rx_buffer_len) {
- case E1000_RXBUFFER_2048:
- default:
- rctl |= E1000_RCTL_SZ_2048;
- rctl &= ~(E1000_RCTL_BSEX | E1000_RCTL_LPE);
- break;
- case E1000_RXBUFFER_4096:
- rctl |= E1000_RCTL_SZ_4096 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
- break;
- case E1000_RXBUFFER_8192:
- rctl |= E1000_RCTL_SZ_8192 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
- break;
- case E1000_RXBUFFER_16384:
- rctl |= E1000_RCTL_SZ_16384 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
- break;
+ if (adapter->netdev->mtu <= ETH_DATA_LEN)
+ rctl &= ~E1000_RCTL_LPE;
+ else
+ rctl |= E1000_RCTL_LPE;
+
+ /* Setup buffer sizes */
+ 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;
+ } else {
+ rctl &= ~E1000_RCTL_SZ_4096;
+ rctl |= E1000_RCTL_BSEX;
+ switch (adapter->rx_buffer_len) {
+ case E1000_RXBUFFER_2048:
+ default:
+ rctl |= E1000_RCTL_SZ_2048;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_4096:
+ rctl |= E1000_RCTL_SZ_4096;
+ break;
+ case E1000_RXBUFFER_8192:
+ rctl |= E1000_RCTL_SZ_8192;
+ break;
+ case E1000_RXBUFFER_16384:
+ rctl |= E1000_RCTL_SZ_16384;
+ break;
+ }
+ }
+
+#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.
+ * In the case of a non-split, skb->data is linearly filled,
+ * followed by the page buffers. Therefore, skb->data is
+ * sized to hold the largest protocol header.
+ */
+ pages = PAGE_USE_COUNT(adapter->netdev->mtu);
+ if ((adapter->hw.mac_type > e1000_82547_rev_2) && (pages <= 3) &&
+ PAGE_SIZE <= 16384)
+ adapter->rx_ps_pages = pages;
+ else
+ adapter->rx_ps_pages = 0;
+#endif
+ if (adapter->rx_ps_pages) {
+ /* Configure extra packet-split registers */
+ rfctl = E1000_READ_REG(&adapter->hw, RFCTL);
+ rfctl |= E1000_RFCTL_EXTEN;
+ /* disable IPv6 packet split support */
+ rfctl |= E1000_RFCTL_IPV6_DIS;
+ E1000_WRITE_REG(&adapter->hw, RFCTL, rfctl);
+
+ rctl |= E1000_RCTL_DTYP_PS | E1000_RCTL_SECRC;
+
+ psrctl |= adapter->rx_ps_bsize0 >>
+ E1000_PSRCTL_BSIZE0_SHIFT;
+
+ switch (adapter->rx_ps_pages) {
+ case 3:
+ psrctl |= PAGE_SIZE <<
+ E1000_PSRCTL_BSIZE3_SHIFT;
+ case 2:
+ psrctl |= PAGE_SIZE <<
+ E1000_PSRCTL_BSIZE2_SHIFT;
+ case 1:
+ psrctl |= PAGE_SIZE >>
+ E1000_PSRCTL_BSIZE1_SHIFT;
+ break;
+ }
+
+ E1000_WRITE_REG(&adapter->hw, PSRCTL, psrctl);
}
E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
static void
e1000_configure_rx(struct e1000_adapter *adapter)
{
- uint64_t rdba = adapter->rx_ring.dma;
- uint32_t rdlen = adapter->rx_ring.count * sizeof(struct e1000_rx_desc);
- uint32_t rctl;
- uint32_t rxcsum;
+ 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
- /* make sure receives are disabled while setting up the descriptors */
+ if (adapter->rx_ps_pages) {
+ rdlen = adapter->rx_ring[0].count *
+ sizeof(union e1000_rx_desc_packet_split);
+ adapter->clean_rx = e1000_clean_rx_irq_ps;
+ adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
+ } else {
+ rdlen = adapter->rx_ring[0].count *
+ sizeof(struct e1000_rx_desc);
+ adapter->clean_rx = e1000_clean_rx_irq;
+ adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
+ }
- rctl = E1000_READ_REG(&adapter->hw, RCTL);
- E1000_WRITE_REG(&adapter->hw, RCTL, rctl & ~E1000_RCTL_EN);
+ /* disable receives while setting up the descriptors */
+ rctl = E1000_READ_REG(hw, RCTL);
+ E1000_WRITE_REG(hw, RCTL, rctl & ~E1000_RCTL_EN);
/* set the Receive Delay Timer Register */
+ E1000_WRITE_REG(hw, RDTR, adapter->rx_int_delay);
- E1000_WRITE_REG(&adapter->hw, RDTR, adapter->rx_int_delay);
-
- if(adapter->hw.mac_type >= e1000_82540) {
- E1000_WRITE_REG(&adapter->hw, RADV, adapter->rx_abs_int_delay);
- if(adapter->itr > 1)
- E1000_WRITE_REG(&adapter->hw, ITR,
+ if (hw->mac_type >= e1000_82540) {
+ E1000_WRITE_REG(hw, RADV, adapter->rx_abs_int_delay);
+ if (adapter->itr > 1)
+ E1000_WRITE_REG(hw, ITR,
1000000000 / (adapter->itr * 256));
}
- /* Setup the Base and Length of the Rx Descriptor Ring */
+ if (hw->mac_type >= e1000_82571) {
+ ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
+ /* Reset delay timers after every interrupt */
+ ctrl_ext |= E1000_CTRL_EXT_CANC;
+#ifdef CONFIG_E1000_NAPI
+ /* Auto-Mask interrupts upon ICR read. */
+ ctrl_ext |= E1000_CTRL_EXT_IAME;
+#endif
+ E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+ E1000_WRITE_REG(hw, IAM, ~0);
+ E1000_WRITE_FLUSH(hw);
+ }
+
+ /* 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;
+ E1000_WRITE_REG(hw, RDBAL, (rdba & 0x00000000ffffffffULL));
+ E1000_WRITE_REG(hw, RDBAH, (rdba >> 32));
+ E1000_WRITE_REG(hw, RDLEN, rdlen);
+ E1000_WRITE_REG(hw, RDH, 0);
+ E1000_WRITE_REG(hw, RDT, 0);
+ adapter->rx_ring[0].rdh = E1000_RDH;
+ adapter->rx_ring[0].rdt = E1000_RDT;
+ 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;
+ }
- E1000_WRITE_REG(&adapter->hw, RDBAL, (rdba & 0x00000000ffffffffULL));
- E1000_WRITE_REG(&adapter->hw, RDBAH, (rdba >> 32));
+ /* 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]);
- E1000_WRITE_REG(&adapter->hw, RDLEN, rdlen);
+ 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);
+ }
- /* Setup the HW Rx Head and Tail Descriptor Pointers */
- E1000_WRITE_REG(&adapter->hw, RDH, 0);
- E1000_WRITE_REG(&adapter->hw, RDT, 0);
+#else
/* Enable 82543 Receive Checksum Offload for TCP and UDP */
- if((adapter->hw.mac_type >= e1000_82543) &&
- (adapter->rx_csum == TRUE)) {
- rxcsum = E1000_READ_REG(&adapter->hw, RXCSUM);
- rxcsum |= E1000_RXCSUM_TUOFL;
- E1000_WRITE_REG(&adapter->hw, RXCSUM, rxcsum);
+ if (hw->mac_type >= e1000_82543) {
+ rxcsum = E1000_READ_REG(hw, RXCSUM);
+ 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)) {
+ rxcsum |= E1000_RXCSUM_IPPCSE;
+ }
+ } else {
+ rxcsum &= ~E1000_RXCSUM_TUOFL;
+ /* don't need to clear IPPCSE as it defaults to 0 */
+ }
+ E1000_WRITE_REG(hw, RXCSUM, rxcsum);
}
+#endif /* CONFIG_E1000_MQ */
- /* Enable Receives */
+ if (hw->mac_type == e1000_82573)
+ E1000_WRITE_REG(hw, ERT, 0x0100);
- E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
+ /* Enable Receives */
+ E1000_WRITE_REG(hw, RCTL, rctl);
}
/**
- * e1000_free_tx_resources - Free Tx Resources
+ * e1000_free_tx_resources - Free Tx Resources per Queue
* @adapter: board private structure
+ * @tx_ring: Tx descriptor ring for a specific queue
*
* Free all transmit software resources
**/
-void
-e1000_free_tx_resources(struct e1000_adapter *adapter)
+static void
+e1000_free_tx_resources(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
struct pci_dev *pdev = adapter->pdev;
- e1000_clean_tx_ring(adapter);
+ e1000_clean_tx_ring(adapter, tx_ring);
+
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+
+ pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
+
+ tx_ring->desc = NULL;
+}
+
+/**
+ * e1000_free_all_tx_resources - Free Tx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
- kfree(adapter->tx_ring.buffer_info);
- adapter->tx_ring.buffer_info = NULL;
+void
+e1000_free_all_tx_resources(struct e1000_adapter *adapter)
+{
+ int i;
- pci_free_consistent(pdev, adapter->tx_ring.size,
- adapter->tx_ring.desc, adapter->tx_ring.dma);
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
+}
- adapter->tx_ring.desc = NULL;
+static inline void
+e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
+ struct e1000_buffer *buffer_info)
+{
+ if (buffer_info->dma) {
+ pci_unmap_page(adapter->pdev,
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_TODEVICE);
+ }
+ if (buffer_info->skb)
+ dev_kfree_skb_any(buffer_info->skb);
+ memset(buffer_info, 0, sizeof(struct e1000_buffer));
}
/**
* e1000_clean_tx_ring - Free Tx Buffers
* @adapter: board private structure
+ * @tx_ring: ring to be cleaned
**/
static void
-e1000_clean_tx_ring(struct e1000_adapter *adapter)
+e1000_clean_tx_ring(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
unsigned long size;
unsigned int i;
/* 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];
- if(buffer_info->skb) {
-
- pci_unmap_page(pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_TODEVICE);
-
- dev_kfree_skb(buffer_info->skb);
-
- buffer_info->skb = NULL;
- }
+ e1000_unmap_and_free_tx_resource(adapter, buffer_info);
}
size = sizeof(struct e1000_buffer) * tx_ring->count;
tx_ring->next_to_use = 0;
tx_ring->next_to_clean = 0;
+ tx_ring->last_tx_tso = 0;
+
+ writel(0, adapter->hw.hw_addr + tx_ring->tdh);
+ writel(0, adapter->hw.hw_addr + tx_ring->tdt);
+}
+
+/**
+ * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void
+e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
+{
+ int i;
- E1000_WRITE_REG(&adapter->hw, TDH, 0);
- E1000_WRITE_REG(&adapter->hw, TDT, 0);
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
}
/**
* e1000_free_rx_resources - Free Rx Resources
* @adapter: board private structure
+ * @rx_ring: ring to clean the resources from
*
* Free all receive software resources
**/
-void
-e1000_free_rx_resources(struct e1000_adapter *adapter)
+static void
+e1000_free_rx_resources(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct pci_dev *pdev = adapter->pdev;
- e1000_clean_rx_ring(adapter);
+ e1000_clean_rx_ring(adapter, rx_ring);
- kfree(rx_ring->buffer_info);
+ vfree(rx_ring->buffer_info);
rx_ring->buffer_info = NULL;
+ kfree(rx_ring->ps_page);
+ rx_ring->ps_page = NULL;
+ kfree(rx_ring->ps_page_dma);
+ rx_ring->ps_page_dma = NULL;
pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
}
/**
- * e1000_clean_rx_ring - Free Rx Buffers
+ * e1000_free_all_rx_resources - Free Rx Resources for All Queues
+ * @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+
+void
+e1000_free_all_rx_resources(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
+}
+
+/**
+ * e1000_clean_rx_ring - Free Rx Buffers per Queue
* @adapter: board private structure
+ * @rx_ring: ring to free buffers from
**/
static void
-e1000_clean_rx_ring(struct e1000_adapter *adapter)
+e1000_clean_rx_ring(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct e1000_buffer *buffer_info;
+ struct e1000_ps_page *ps_page;
+ struct e1000_ps_page_dma *ps_page_dma;
struct pci_dev *pdev = adapter->pdev;
unsigned long size;
- unsigned int i;
+ 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) {
-
+ if (buffer_info->skb) {
pci_unmap_single(pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_FROMDEVICE);
+ buffer_info->dma,
+ buffer_info->length,
+ PCI_DMA_FROMDEVICE);
dev_kfree_skb(buffer_info->skb);
-
buffer_info->skb = NULL;
}
+ ps_page = &rx_ring->ps_page[i];
+ ps_page_dma = &rx_ring->ps_page_dma[i];
+ for (j = 0; j < adapter->rx_ps_pages; j++) {
+ if (!ps_page->ps_page[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;
+ put_page(ps_page->ps_page[j]);
+ ps_page->ps_page[j] = 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;
+ memset(rx_ring->ps_page, 0, size);
+ size = sizeof(struct e1000_ps_page_dma) * rx_ring->count;
+ memset(rx_ring->ps_page_dma, 0, size);
/* Zero out the descriptor ring */
rx_ring->next_to_clean = 0;
rx_ring->next_to_use = 0;
- E1000_WRITE_REG(&adapter->hw, RDH, 0);
- E1000_WRITE_REG(&adapter->hw, RDT, 0);
+ writel(0, adapter->hw.hw_addr + rx_ring->rdh);
+ writel(0, adapter->hw.hw_addr + rx_ring->rdt);
+}
+
+/**
+ * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
+ * @adapter: board private structure
+ **/
+
+static void
+e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < adapter->num_rx_queues; i++)
+ e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
}
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
E1000_WRITE_FLUSH(&adapter->hw);
mdelay(5);
- if(netif_running(netdev))
- e1000_clean_rx_ring(adapter);
+ if (netif_running(netdev))
+ e1000_clean_all_rx_rings(adapter);
}
static void
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)) {
+ 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);
- e1000_alloc_rx_buffers(adapter);
+ adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
}
}
static int
e1000_set_mac(struct net_device *netdev, void *p)
{
- struct e1000_adapter *adapter = netdev->priv;
+ 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);
e1000_rar_set(&adapter->hw, adapter->hw.mac_addr, 0);
- if(adapter->hw.mac_type == e1000_82542_rev2_0)
+ /* With 82571 controllers, LAA may be overwritten (with the default)
+ * due to controller reset from the other port. */
+ if (adapter->hw.mac_type == e1000_82571) {
+ /* 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
+ * of the RARs and no incoming packets directed to this port
+ * are dropped. Eventaully the LAA will be in RAR[0] and
+ * RAR[14] */
+ e1000_rar_set(&adapter->hw, adapter->hw.mac_addr,
+ E1000_RAR_ENTRIES - 1);
+ }
+
+ if (adapter->hw.mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
return 0;
static void
e1000_set_multi(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
struct dev_mc_list *mc_ptr;
uint32_t rctl;
uint32_t hash_value;
- int i;
+ int i, rar_entries = E1000_RAR_ENTRIES;
+
+ /* reserve RAR[14] for LAA over-write work-around */
+ if (adapter->hw.mac_type == e1000_82571)
+ rar_entries--;
/* Check for Promiscuous and All Multicast modes */
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
* RAR 0 is used for the station MAC adddress
* if there are not 14 addresses, go ahead and clear the filters
+ * -- with 82571 controllers only 0-13 entries are filled here
*/
mc_ptr = netdev->mc_list;
- for(i = 1; i < E1000_RAR_ENTRIES; i++) {
- if(mc_ptr) {
+ for (i = 1; i < rar_entries; i++) {
+ if (mc_ptr) {
e1000_rar_set(hw, mc_ptr->dmi_addr, i);
mc_ptr = mc_ptr->next;
} else {
/* 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);
}
-/* need to wait a few seconds after link up to get diagnostic information from the phy */
+/* Need to wait a few seconds after link up to get diagnostic information from
+ * the phy */
static void
e1000_update_phy_info(unsigned long data)
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_watchdog - Timer Call-back
- * @data: pointer to netdev cast into an unsigned long
+ * @data: pointer to adapter cast into an unsigned long
**/
-
static void
e1000_watchdog(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *) data;
+
+ /* Do the rest outside of interrupt context */
+ schedule_work(&adapter->watchdog_task);
+}
+
+static void
+e1000_watchdog_task(struct e1000_adapter *adapter)
+{
struct net_device *netdev = adapter->netdev;
- struct e1000_desc_ring *txdr = &adapter->tx_ring;
- unsigned int i;
+ struct e1000_tx_ring *txdr = adapter->tx_ring;
uint32_t link;
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)
+ 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->link_duplex == FULL_DUPLEX ?
"Full Duplex" : "Half Duplex");
+ /* tweak tx_queue_len according to speed/duplex */
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ adapter->tx_timeout_factor = 1;
+ if (adapter->link_duplex == HALF_DUPLEX) {
+ 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;
+ break;
+ }
+ }
+
netif_carrier_on(netdev);
netif_wake_queue(netdev);
mod_timer(&adapter->phy_info_timer, jiffies + 2 * HZ);
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");
adapter->tpt_old = adapter->stats.tpt;
adapter->hw.collision_delta = adapter->stats.colc - adapter->colc_old;
adapter->colc_old = adapter->stats.colc;
-
+
adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
adapter->gorcl_old = adapter->stats.gorcl;
adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
e1000_update_adaptive(&adapter->hw);
- if(!netif_carrier_ok(netdev)) {
- if(E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
+#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.
}
/* 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;
/* Cause software interrupt to ensure rx ring is cleaned */
E1000_WRITE_REG(&adapter->hw, ICS, E1000_ICS_RXDMT0);
- /* Early detection of hung controller */
- i = txdr->next_to_clean;
- if(txdr->buffer_info[i].dma &&
- time_after(jiffies, txdr->buffer_info[i].time_stamp + HZ) &&
- !(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_TXOFF))
- netif_stop_queue(netdev);
+ /* Force detection of hung controller every watchdog period */
+ adapter->detect_tx_hung = TRUE;
+
+ /* 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);
/* Reset the timer */
mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
#define E1000_TX_FLAGS_CSUM 0x00000001
#define E1000_TX_FLAGS_VLAN 0x00000002
#define E1000_TX_FLAGS_TSO 0x00000004
+#define E1000_TX_FLAGS_IPV4 0x00000008
#define E1000_TX_FLAGS_VLAN_MASK 0xffff0000
#define E1000_TX_FLAGS_VLAN_SHIFT 16
-static inline boolean_t
-e1000_tso(struct e1000_adapter *adapter, struct sk_buff *skb)
+static inline int
+e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb)
{
#ifdef NETIF_F_TSO
struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
unsigned int i;
+ uint32_t cmd_length = 0;
+ uint16_t ipcse = 0, tucse, mss;
uint8_t ipcss, ipcso, tucss, tucso, hdr_len;
- uint16_t ipcse, tucse, mss;
+ int err;
+
+ if (skb_shinfo(skb)->tso_size) {
+ if (skb_header_cloned(skb)) {
+ err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+ if (err)
+ return err;
+ }
- if(skb_shinfo(skb)->tso_size) {
hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
mss = skb_shinfo(skb)->tso_size;
- skb->nh.iph->tot_len = 0;
- skb->nh.iph->check = 0;
- skb->h.th->check = ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0,
- IPPROTO_TCP,
- 0);
+ if (skb->protocol == ntohs(ETH_P_IP)) {
+ skb->nh.iph->tot_len = 0;
+ skb->nh.iph->check = 0;
+ skb->h.th->check =
+ ~csum_tcpudp_magic(skb->nh.iph->saddr,
+ skb->nh.iph->daddr,
+ 0,
+ IPPROTO_TCP,
+ 0);
+ 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)) {
+ skb->nh.ipv6h->payload_len = 0;
+ skb->h.th->check =
+ ~csum_ipv6_magic(&skb->nh.ipv6h->saddr,
+ &skb->nh.ipv6h->daddr,
+ 0,
+ IPPROTO_TCP,
+ 0);
+ ipcse = 0;
+#endif
+ }
ipcss = skb->nh.raw - skb->data;
ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
- ipcse = skb->h.raw - skb->data - 1;
tucss = skb->h.raw - skb->data;
tucso = (void *)&(skb->h.th->check) - (void *)skb->data;
tucse = 0;
- i = adapter->tx_ring.next_to_use;
- context_desc = E1000_CONTEXT_DESC(adapter->tx_ring, i);
+ cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
+ E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
+
+ i = tx_ring->next_to_use;
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
context_desc->lower_setup.ip_fields.ipcss = ipcss;
context_desc->lower_setup.ip_fields.ipcso = ipcso;
context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss);
context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
- context_desc->cmd_and_length = cpu_to_le32(
- E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
- E1000_TXD_CMD_IP | E1000_TXD_CMD_TCP |
- (skb->len - (hdr_len)));
+ context_desc->cmd_and_length = cpu_to_le32(cmd_length);
+
+ buffer_info->time_stamp = jiffies;
- if(++i == adapter->tx_ring.count) i = 0;
- adapter->tx_ring.next_to_use = i;
+ if (++i == tx_ring->count) i = 0;
+ tx_ring->next_to_use = i;
return TRUE;
}
}
static inline boolean_t
-e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
+e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb)
{
struct e1000_context_desc *context_desc;
+ struct e1000_buffer *buffer_info;
unsigned int i;
- uint8_t css, cso;
+ uint8_t css;
- if(skb->ip_summed == CHECKSUM_HW) {
+ if (likely(skb->ip_summed == CHECKSUM_HW)) {
css = skb->h.raw - skb->data;
- cso = (skb->h.raw + skb->csum) - skb->data;
- i = adapter->tx_ring.next_to_use;
- context_desc = E1000_CONTEXT_DESC(adapter->tx_ring, i);
+ i = tx_ring->next_to_use;
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
context_desc->upper_setup.tcp_fields.tucss = css;
- context_desc->upper_setup.tcp_fields.tucso = cso;
+ context_desc->upper_setup.tcp_fields.tucso = css + skb->csum;
context_desc->upper_setup.tcp_fields.tucse = 0;
context_desc->tcp_seg_setup.data = 0;
context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
- if(++i == adapter->tx_ring.count) i = 0;
- adapter->tx_ring.next_to_use = i;
+ buffer_info->time_stamp = jiffies;
+
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ tx_ring->next_to_use = i;
return TRUE;
}
#define E1000_MAX_DATA_PER_TXD (1<<E1000_MAX_TXD_PWR)
static inline int
-e1000_tx_map(struct e1000_adapter *adapter, struct sk_buff *skb,
- unsigned int first, unsigned int max_per_txd,
- unsigned int nr_frags, unsigned int mss)
+e1000_tx_map(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ struct sk_buff *skb, unsigned int first, unsigned int max_per_txd,
+ unsigned int nr_frags, unsigned int mss)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_buffer *buffer_info;
unsigned int len = skb->len;
unsigned int offset = 0, size, count = 0, i;
unsigned int f;
len -= skb->data_len;
-
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 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 */
+ if (!skb->data_len && tx_ring->last_tx_tso &&
+ !skb_shinfo(skb)->tso_size) {
+ tx_ring->last_tx_tso = 0;
+ size -= 4;
+ }
+
/* Workaround for premature desc write-backs
* in TSO mode. Append 4-byte sentinel desc */
- if(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
+ * to all controllers in PCI-X mode
+ * 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) &&
+ (size > 2015) && count == 0))
+ size = 2015;
+
/* Workaround for potential 82544 hang in PCI-X. Avoid
* terminating buffers within evenly-aligned dwords. */
- if(adapter->pcix_82544 &&
+ if (unlikely(adapter->pcix_82544 &&
!((unsigned long)(skb->data + offset + size - 1) & 4) &&
- size > 4)
+ size > 4))
size -= 4;
buffer_info->length = size;
len -= size;
offset += size;
count++;
- if(++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(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(adapter->pcix_82544 &&
+ if (unlikely(adapter->pcix_82544 &&
!((unsigned long)(frag->page+offset+size-1) & 4) &&
- size > 4)
+ size > 4))
size -= 4;
buffer_info->length = size;
len -= size;
offset += size;
count++;
- if(++i == tx_ring->count) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
}
+
i = (i == 0) ? tx_ring->count - 1 : i - 1;
tx_ring->buffer_info[i].skb = skb;
tx_ring->buffer_info[first].next_to_watch = i;
-
+
return count;
}
static inline void
-e1000_tx_queue(struct e1000_adapter *adapter, int count, int tx_flags)
+e1000_tx_queue(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring,
+ int tx_flags, int count)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct e1000_tx_desc *tx_desc = NULL;
struct e1000_buffer *buffer_info;
uint32_t txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
unsigned int i;
- if(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_IXSM | E1000_TXD_POPTS_TXSM) << 8;
+ txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+
+ if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
+ txd_upper |= E1000_TXD_POPTS_IXSM << 8;
}
- if(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(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(++i == tx_ring->count) i = 0;
+ if (unlikely(++i == tx_ring->count)) i = 0;
}
tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
wmb();
tx_ring->next_to_use = i;
- E1000_WRITE_REG(&adapter->hw, TDT, i);
+ writel(i, adapter->hw.hw_addr + tx_ring->tdt);
}
/**
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;
}
-#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
+#define MINIMUM_DHCP_PACKET_SIZE 282
+static inline int
+e1000_transfer_dhcp_info(struct e1000_adapter *adapter, struct sk_buff *skb)
+{
+ 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) &&
+ ( adapter->hw.mng_cookie.status &
+ E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) )
+ return 0;
+ }
+ 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 =
+ (struct iphdr *)((uint8_t *)skb->data+14);
+ if (IPPROTO_UDP == ip->protocol) {
+ struct udphdr *udp =
+ (struct udphdr *)((uint8_t *)ip +
+ (ip->ihl << 2));
+ 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,
+ length);
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
static int
e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_tx_ring *tx_ring;
unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
unsigned int tx_flags = 0;
- unsigned long flags;
unsigned int len = skb->len;
- int count = 0;
- unsigned int mss = 0;
+ unsigned long flags;
unsigned int nr_frags = 0;
+ unsigned int mss = 0;
+ int count = 0;
+ int tso;
unsigned int f;
- nr_frags = skb_shinfo(skb)->nr_frags;
len -= skb->data_len;
- if(skb->len <= 0) {
+
+#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);
- return 0;
+ return NETDEV_TX_OK;
}
#ifdef NETIF_F_TSO
* 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;
+
+ /* TSO Workaround for 82571/2 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;
+ }
+ 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++; /*for sentinel desc*/
+ count++;
#else
- if(skb->ip_summed == CHECKSUM_HW)
+ if (skb->ip_summed == CHECKSUM_HW)
+ count++;
+#endif
+
+#ifdef NETIF_F_TSO
+ /* Controller Erratum workaround */
+ if (!skb->data_len && tx_ring->last_tx_tso &&
+ !skb_shinfo(skb)->tso_size)
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
+ * in PCI-X mode, so add one more descriptor to the count
+ */
+ 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)
+ max_txd_pwr);
+ if (adapter->pcix_82544)
count += nr_frags;
-
- spin_lock_irqsave(&adapter->tx_lock, flags);
- /* need: count + 2 desc gap to keep tail from touching
- * head, otherwise try next time */
- if(E1000_DESC_UNUSED(&adapter->tx_ring) < count + 2 ) {
+
+ if (adapter->hw.tx_pkt_filtering && (adapter->hw.mac_type == e1000_82573) )
+ e1000_transfer_dhcp_info(adapter, skb);
+
+ local_irq_save(flags);
+ if (!spin_trylock(&tx_ring->tx_lock)) {
+ /* Collision - tell upper layer to requeue */
+ local_irq_restore(flags);
+ return NETDEV_TX_LOCKED;
+ }
+
+ /* need: count + 2 desc gap to keep tail from touching
+ * head, otherwise try next time */
+ if (unlikely(E1000_DESC_UNUSED(tx_ring) < count + 2)) {
netif_stop_queue(netdev);
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
- return 1;
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_BUSY;
}
- spin_unlock_irqrestore(&adapter->tx_lock, flags);
- if(adapter->hw.mac_type == e1000_82547) {
- if(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);
- return 1;
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_BUSY;
}
}
- if(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 = adapter->tx_ring.next_to_use;
-
- if(e1000_tso(adapter, skb))
+ first = tx_ring->next_to_use;
+
+ tso = e1000_tso(adapter, tx_ring, skb);
+ if (tso < 0) {
+ dev_kfree_skb_any(skb);
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_OK;
+ }
+
+ if (likely(tso)) {
+ tx_ring->last_tx_tso = 1;
tx_flags |= E1000_TX_FLAGS_TSO;
- else if(e1000_tx_csum(adapter, skb))
+ } else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
tx_flags |= E1000_TX_FLAGS_CSUM;
- e1000_tx_queue(adapter,
- e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss),
- tx_flags);
+ /* Old method was to assume IPv4 packet by default if TSO was enabled.
+ * 82571 hardware supports TSO capabilities for IPv6 as well...
+ * no longer assume, we must. */
+ if (likely(skb->protocol == ntohs(ETH_P_IP)))
+ tx_flags |= E1000_TX_FLAGS_IPV4;
+
+ e1000_tx_queue(adapter, tx_ring, tx_flags,
+ e1000_tx_map(adapter, tx_ring, skb, first,
+ max_per_txd, nr_frags, mss));
netdev->trans_start = jiffies;
- return 0;
+ /* Make sure there is space in the ring for the next send. */
+ if (unlikely(E1000_DESC_UNUSED(tx_ring) < MAX_SKB_FRAGS + 2))
+ netif_stop_queue(netdev);
+
+ spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
+ return NETDEV_TX_OK;
}
/**
static void
e1000_tx_timeout(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
/* Do the reset outside of interrupt context */
schedule_work(&adapter->tx_timeout_task);
static void
e1000_tx_timeout_task(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
- netif_device_detach(netdev);
+ adapter->tx_timeout_count++;
e1000_down(adapter);
e1000_up(adapter);
- netif_device_attach(netdev);
}
/**
static struct net_device_stats *
e1000_get_stats(struct net_device *netdev)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
- e1000_update_stats(adapter);
+ /* only return the current stats */
return &adapter->net_stats;
}
static int
e1000_change_mtu(struct net_device *netdev, int new_mtu)
{
- struct e1000_adapter *adapter = netdev->priv;
- int old_mtu = adapter->rx_buffer_len;
+ 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)) {
+ if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
+ (max_frame > MAX_JUMBO_FRAME_SIZE)) {
DPRINTK(PROBE, ERR, "Invalid MTU setting\n");
return -EINVAL;
}
- if(max_frame <= MAXIMUM_ETHERNET_FRAME_SIZE) {
- adapter->rx_buffer_len = E1000_RXBUFFER_2048;
-
- } else if(adapter->hw.mac_type < e1000_82543) {
- DPRINTK(PROBE, ERR, "Jumbo Frames not supported on 82542\n");
- return -EINVAL;
-
- } else if(max_frame <= E1000_RXBUFFER_4096) {
- adapter->rx_buffer_len = E1000_RXBUFFER_4096;
+ /* Adapter-specific max frame size limits. */
+ 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_82571:
+ case e1000_82572:
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
+ if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+ DPRINTK(PROBE, ERR, "MTU > 9216 not supported.\n");
+ return -EINVAL;
+ }
+ break;
+ default:
+ /* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
+ break;
+ }
- } else if(max_frame <= E1000_RXBUFFER_8192) {
- adapter->rx_buffer_len = E1000_RXBUFFER_8192;
+ if (adapter->hw.mac_type > e1000_82547_rev_2) {
+ adapter->rx_buffer_len = max_frame;
+ E1000_ROUNDUP(adapter->rx_buffer_len, 1024);
} else {
- adapter->rx_buffer_len = E1000_RXBUFFER_16384;
+ 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;
+ }
}
- if(old_mtu != adapter->rx_buffer_len && netif_running(netdev)) {
+ netdev->mtu = new_mtu;
+ if (netif_running(netdev)) {
e1000_down(adapter);
e1000_up(adapter);
}
- netdev->mtu = new_mtu;
adapter->hw.max_frame_size = max_frame;
return 0;
adapter->stats.prc1023 += E1000_READ_REG(hw, PRC1023);
adapter->stats.prc1522 += E1000_READ_REG(hw, PRC1522);
- /* the rest of the counters are only modified here */
-
adapter->stats.symerrs += E1000_READ_REG(hw, SYMERRS);
adapter->stats.mpc += E1000_READ_REG(hw, MPC);
adapter->stats.scc += E1000_READ_REG(hw, SCC);
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) {
+ adapter->stats.iac += E1000_READ_REG(hw, IAC);
+ adapter->stats.icrxoc += E1000_READ_REG(hw, ICRXOC);
+ adapter->stats.icrxptc += E1000_READ_REG(hw, ICRXPTC);
+ adapter->stats.icrxatc += E1000_READ_REG(hw, ICRXATC);
+ adapter->stats.ictxptc += E1000_READ_REG(hw, ICTXPTC);
+ adapter->stats.ictxatc += E1000_READ_REG(hw, ICTXATC);
+ adapter->stats.ictxqec += E1000_READ_REG(hw, ICTXQEC);
+ adapter->stats.ictxqmtc += E1000_READ_REG(hw, ICTXQMTC);
+ adapter->stats.icrxdmtc += E1000_READ_REG(hw, ICRXDMTC);
+ }
/* Fill out the OS statistics structure */
adapter->net_stats.rx_errors = adapter->stats.rxerrc +
adapter->stats.crcerrs + adapter->stats.algnerrc +
- adapter->stats.rlec + adapter->stats.rnbc +
- adapter->stats.mpc + adapter->stats.cexterr;
- adapter->net_stats.rx_dropped = adapter->stats.rnbc;
+ adapter->stats.rlec + adapter->stats.cexterr;
+ adapter->net_stats.rx_dropped = 0;
adapter->net_stats.rx_length_errors = adapter->stats.rlec;
adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
- adapter->net_stats.rx_fifo_errors = adapter->stats.mpc;
adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
/* Tx Errors */
/* 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;
spin_unlock_irqrestore(&adapter->stats_lock, flags);
}
-/**
- * e1000_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- **/
-
-static inline void
-e1000_irq_disable(struct e1000_adapter *adapter)
+#ifdef CONFIG_E1000_MQ
+void
+e1000_rx_schedule(void *data)
{
- atomic_inc(&adapter->irq_sem);
- E1000_WRITE_REG(&adapter->hw, IMC, ~0);
- E1000_WRITE_FLUSH(&adapter->hw);
- synchronize_irq(adapter->pdev->irq);
-}
-
-/**
- * e1000_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- **/
+ struct net_device *poll_dev, *netdev = data;
+ struct e1000_adapter *adapter = netdev->priv;
+ int this_cpu = get_cpu();
-static inline void
-e1000_irq_enable(struct e1000_adapter *adapter)
-{
- if(atomic_dec_and_test(&adapter->irq_sem)) {
- E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK);
- E1000_WRITE_FLUSH(&adapter->hw);
+ 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
e1000_intr(int irq, void *data, struct pt_regs *regs)
{
struct net_device *netdev = data;
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
- uint32_t icr = E1000_READ_REG(&adapter->hw, ICR);
+ uint32_t icr = E1000_READ_REG(hw, ICR);
#ifndef CONFIG_E1000_NAPI
- unsigned int i;
+ int i;
+#else
+ /* Interrupt Auto-Mask...upon reading ICR,
+ * interrupts are masked. No need for the
+ * IMC write, but it does mean we should
+ * account for it ASAP. */
+ if (likely(hw->mac_type >= e1000_82571))
+ atomic_inc(&adapter->irq_sem);
#endif
- if(!icr)
+ if (unlikely(!icr)) {
+#ifdef CONFIG_E1000_NAPI
+ if (hw->mac_type >= e1000_82571)
+ e1000_irq_enable(adapter);
+#endif
return IRQ_NONE; /* Not our interrupt */
+ }
- if(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);
}
#ifdef CONFIG_E1000_NAPI
- if(netif_rx_schedule_prep(netdev)) {
-
- /* Disable interrupts and register for poll. The flush
- of the posted write is intentionally left out.
- */
-
+ if (unlikely(hw->mac_type < e1000_82571)) {
atomic_inc(&adapter->irq_sem);
E1000_WRITE_REG(hw, IMC, ~0);
- __netif_rx_schedule(netdev);
+ E1000_WRITE_FLUSH(hw);
}
-#else
- for(i = 0; i < E1000_MAX_INTR; i++)
- if(!e1000_clean_rx_irq(adapter) &
- !e1000_clean_tx_irq(adapter))
+#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 */
+ /* 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) {
+ 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) &
+ !e1000_clean_tx_irq(adapter, adapter->tx_ring)))
break;
-#endif
+
+ if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2)
+ e1000_irq_enable(adapter);
+
+#endif /* CONFIG_E1000_NAPI */
return IRQ_HANDLED;
}
**/
static int
-e1000_clean(struct net_device *netdev, int *budget)
+e1000_clean(struct net_device *poll_dev, int *budget)
{
- struct e1000_adapter *adapter = netdev->priv;
- int work_to_do = min(*budget, netdev->quota);
- int work_done = 0;
-
- e1000_clean_tx_irq(adapter);
- e1000_clean_rx_irq(adapter, &work_done, work_to_do);
+ struct e1000_adapter *adapter;
+ int work_to_do = min(*budget, poll_dev->quota);
+ int tx_cleaned = 0, i = 0, work_done = 0;
+
+ /* Must NOT use netdev_priv macro here. */
+ adapter = poll_dev->priv;
+
+ /* Keep link state information with original netdev */
+ if (!netif_carrier_ok(adapter->netdev))
+ goto quit_polling;
+
+ while (poll_dev != &adapter->polling_netdev[i]) {
+ i++;
+ if (unlikely(i == adapter->num_rx_queues))
+ BUG();
+ }
+
+ 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;
- netdev->quota -= work_done;
-
- if(work_done < work_to_do || !netif_running(netdev)) {
- netif_rx_complete(netdev);
+ poll_dev->quota -= work_done;
+
+ /* If no Tx and not enough Rx work done, exit the polling mode */
+ if ((!tx_cleaned && (work_done == 0)) ||
+ !netif_running(adapter->netdev)) {
+quit_polling:
+ netif_rx_complete(poll_dev);
e1000_irq_enable(adapter);
return 0;
}
- return (work_done >= work_to_do);
+ return 1;
}
-#endif
+#endif
/**
* e1000_clean_tx_irq - Reclaim resources after transmit completes
* @adapter: board private structure
**/
static boolean_t
-e1000_clean_tx_irq(struct e1000_adapter *adapter)
+e1000_clean_tx_irq(struct e1000_adapter *adapter,
+ struct e1000_tx_ring *tx_ring)
{
- struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
struct e1000_tx_desc *tx_desc, *eop_desc;
struct e1000_buffer *buffer_info;
unsigned int i, eop;
boolean_t cleaned = FALSE;
-
i = tx_ring->next_to_clean;
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
- while(eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
-
- for(cleaned = FALSE; !cleaned; ) {
+ while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
+ for (cleaned = FALSE; !cleaned; ) {
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
+ cleaned = (i == eop);
- if(buffer_info->dma) {
-
- pci_unmap_page(pdev,
- buffer_info->dma,
- buffer_info->length,
- PCI_DMA_TODEVICE);
-
- buffer_info->dma = 0;
- }
-
- if(buffer_info->skb) {
-
- dev_kfree_skb_any(buffer_info->skb);
+#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));
- buffer_info->skb = NULL;
- }
+ if (unlikely(++i == tx_ring->count)) i = 0;
+ }
- tx_desc->buffer_addr = 0;
- tx_desc->lower.data = 0;
- tx_desc->upper.data = 0;
+#ifdef CONFIG_E1000_MQ
+ tx_ring->tx_stats.packets++;
+#endif
- cleaned = (i == eop);
- if(++i == tx_ring->count) i = 0;
- }
-
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
}
tx_ring->next_to_clean = i;
- spin_lock(&adapter->tx_lock);
+ spin_lock(&tx_ring->tx_lock);
- if(cleaned && netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
+ if (unlikely(cleaned && netif_queue_stopped(netdev) &&
+ netif_carrier_ok(netdev)))
netif_wake_queue(netdev);
- spin_unlock(&adapter->tx_lock);
-
+ spin_unlock(&tx_ring->tx_lock);
+
+ if (adapter->detect_tx_hung) {
+ /* Detect a transmit hang in hardware, this serializes the
+ * check with the clearing of time_stamp and movement of i */
+ 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)
+ && !(E1000_READ_REG(&adapter->hw, STATUS) &
+ E1000_STATUS_TXOFF)) {
+
+ /* detected Tx unit hang */
+ DPRINTK(DRV, ERR, "Detected Tx Unit Hang\n"
+ " Tx Queue <%lu>\n"
+ " TDH <%x>\n"
+ " TDT <%x>\n"
+ " next_to_use <%x>\n"
+ " next_to_clean <%x>\n"
+ "buffer_info[next_to_clean]\n"
+ " time_stamp <%lx>\n"
+ " next_to_watch <%x>\n"
+ " jiffies <%lx>\n"
+ " next_to_watch.status <%x>\n",
+ (unsigned long)((tx_ring - adapter->tx_ring) /
+ sizeof(struct e1000_tx_ring)),
+ readl(adapter->hw.hw_addr + tx_ring->tdh),
+ readl(adapter->hw.hw_addr + tx_ring->tdt),
+ tx_ring->next_to_use,
+ tx_ring->next_to_clean,
+ tx_ring->buffer_info[eop].time_stamp,
+ eop,
+ jiffies,
+ eop_desc->upper.fields.status);
+ netif_stop_queue(netdev);
+ }
+ }
return cleaned;
}
/**
- * e1000_clean_rx_irq - Send received data up the network stack,
+ * e1000_rx_checksum - Receive Checksum Offload for 82543
+ * @adapter: board private structure
+ * @status_err: receive descriptor status and error fields
+ * @csum: receive descriptor csum field
+ * @sk_buff: socket buffer with received data
+ **/
+
+static inline void
+e1000_rx_checksum(struct e1000_adapter *adapter,
+ uint32_t status_err, uint32_t csum,
+ struct sk_buff *skb)
+{
+ uint16_t status = (uint16_t)status_err;
+ uint8_t errors = (uint8_t)(status_err >> 24);
+ skb->ip_summed = CHECKSUM_NONE;
+
+ /* 82543 or newer only */
+ if (unlikely(adapter->hw.mac_type < e1000_82543)) return;
+ /* Ignore Checksum bit is set */
+ if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
+ /* TCP/UDP checksum error bit is set */
+ 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))
+ return;
+ } else {
+ if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
+ return;
+ }
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (likely(status & E1000_RXD_STAT_TCPCS)) {
+ /* TCP checksum is good */
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ } else if (adapter->hw.mac_type > e1000_82547_rev_2) {
+ /* IP fragment with UDP payload */
+ /* Hardware complements the payload checksum, so we undo it
+ * and then put the value in host order for further stack use.
+ */
+ csum = ntohl(csum ^ 0xFFFF);
+ skb->csum = csum;
+ skb->ip_summed = CHECKSUM_HW;
+ }
+ adapter->hw_csum_good++;
+}
+
+/**
+ * e1000_clean_rx_irq - Send received data up the network stack; legacy
* @adapter: board private structure
**/
static boolean_t
#ifdef CONFIG_E1000_NAPI
-e1000_clean_rx_irq(struct e1000_adapter *adapter, int *work_done,
- int work_to_do)
+e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
#else
-e1000_clean_rx_irq(struct e1000_adapter *adapter)
+e1000_clean_rx_irq(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
#endif
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
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;
+ 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;
- cleaned = TRUE;
+ 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_DMA_FROMDEVICE);
- skb = buffer_info->skb;
length = le16_to_cpu(rx_desc->length);
- if(!(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);
-
+ E1000_DBG("%s: Receive packet consumed multiple"
+ " buffers\n", netdev->name);
dev_kfree_skb_irq(skb);
- rx_desc->status = 0;
- buffer_info->skb = NULL;
-
- if(++i == rx_ring->count) i = 0;
-
- rx_desc = E1000_RX_DESC(*rx_ring, i);
- continue;
+ goto next_desc;
}
- if(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,
length, skb->data);
-
spin_unlock_irqrestore(&adapter->stats_lock,
flags);
length--;
} else {
-
dev_kfree_skb_irq(skb);
- rx_desc->status = 0;
- buffer_info->skb = NULL;
-
- if(++i == rx_ring->count) i = 0;
-
- rx_desc = E1000_RX_DESC(*rx_ring, i);
- continue;
+ goto next_desc;
}
}
- /* 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, rx_desc, skb);
+ e1000_rx_checksum(adapter,
+ (uint32_t)(status) |
+ ((uint32_t)(rx_desc->errors) << 24),
+ le16_to_cpu(rx_desc->csum), skb);
skb->protocol = eth_type_trans(skb, netdev);
#ifdef CONFIG_E1000_NAPI
- if(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));
+ le16_to_cpu(rx_desc->special) &
+ E1000_RXD_SPC_VLAN_MASK);
} else {
netif_receive_skb(skb);
}
#else /* CONFIG_E1000_NAPI */
- if(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));
+ le16_to_cpu(rx_desc->special) &
+ E1000_RXD_SPC_VLAN_MASK);
} else {
netif_rx(skb);
}
#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;
- buffer_info->skb = NULL;
- if(++i == rx_ring->count) i = 0;
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
+ cleaned_count = 0;
+ }
- rx_desc = E1000_RX_DESC(*rx_ring, i);
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
}
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = E1000_DESC_UNUSED(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
+
+ return cleaned;
+}
+
+/**
+ * e1000_clean_rx_irq_ps - Send received data up the network stack; packet split
+ * @adapter: board private structure
+ **/
+static boolean_t
+#ifdef CONFIG_E1000_NAPI
+e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int *work_done, int work_to_do)
+#else
+e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring)
+#endif
+{
+ 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, *next_buffer;
+ struct e1000_ps_page *ps_page;
+ struct e1000_ps_page_dma *ps_page_dma;
+ struct sk_buff *skb, *next_skb;
+ unsigned int i, j;
+ uint32_t length, staterr;
+ int cleaned_count = 0;
+ boolean_t cleaned = FALSE;
+
+ 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) {
+ 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))
+ 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);
+
+ 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)) {
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ length = le16_to_cpu(rx_desc->wb.middle.length0);
+
+ if (unlikely(!length)) {
+ E1000_DBG("%s: Last part of the packet spanning"
+ " multiple descriptors\n", netdev->name);
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ /* 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])))
+ 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];
+ 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;
+ skb->truesize += length;
+ }
+
+ 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);
+
+ if (likely(rx_desc->wb.upper.header_status &
+ cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP)))
+ adapter->rx_hdr_split++;
+#ifdef CONFIG_E1000_NAPI
+ 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);
+ } else {
+ netif_receive_skb(skb);
+ }
+#else /* CONFIG_E1000_NAPI */
+ 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);
+ } else {
+ netif_rx(skb);
+ }
+#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);
+ buffer_info->skb = NULL;
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
+ 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;
- e1000_alloc_rx_buffers(adapter);
+ cleaned_count = E1000_DESC_UNUSED(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
return cleaned;
}
/**
- * e1000_alloc_rx_buffers - Replace used receive buffers
+ * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
* @adapter: address of board private structure
**/
static void
-e1000_alloc_rx_buffers(struct e1000_adapter *adapter)
+e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count)
{
- struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
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;
unsigned int i;
+ unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN;
i = rx_ring->next_to_use;
buffer_info = &rx_ring->buffer_info[i];
- while(!buffer_info->skb) {
- rx_desc = E1000_RX_DESC(*rx_ring, i);
+ while (cleaned_count--) {
+ if (!(skb = buffer_info->skb))
+ skb = dev_alloc_skb(bufsz);
+ else {
+ skb_trim(skb, 0);
+ goto map_skb;
+ }
- skb = dev_alloc_skb(adapter->rx_buffer_len + NET_IP_ALIGN);
- if(!skb) {
+ if (unlikely(!skb)) {
/* Better luck next round */
+ adapter->alloc_rx_buff_failed++;
break;
}
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
+ struct sk_buff *oldskb = skb;
+ DPRINTK(RX_ERR, ERR, "skb align check failed: %u bytes "
+ "at %p\n", bufsz, skb->data);
+ /* Try again, without freeing the previous */
+ skb = dev_alloc_skb(bufsz);
+ /* Failed allocation, critical failure */
+ if (!skb) {
+ dev_kfree_skb(oldskb);
+ break;
+ }
+
+ if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
+ /* give up */
+ dev_kfree_skb(skb);
+ dev_kfree_skb(oldskb);
+ break; /* while !buffer_info->skb */
+ } else {
+ /* Use new allocation */
+ dev_kfree_skb(oldskb);
+ }
+ }
/* Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed
buffer_info->skb = skb;
buffer_info->length = adapter->rx_buffer_len;
- buffer_info->dma =
- pci_map_single(pdev,
- skb->data,
- adapter->rx_buffer_len,
- PCI_DMA_FROMDEVICE);
+map_skb:
+ buffer_info->dma = pci_map_single(pdev,
+ skb->data,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+
+ /* Fix for errata 23, can't cross 64kB boundary */
+ if (!e1000_check_64k_bound(adapter,
+ (void *)(unsigned long)buffer_info->dma,
+ adapter->rx_buffer_len)) {
+ DPRINTK(RX_ERR, ERR,
+ "dma align check failed: %u bytes at %p\n",
+ adapter->rx_buffer_len,
+ (void *)(unsigned long)buffer_info->dma);
+ dev_kfree_skb(skb);
+ buffer_info->skb = NULL;
+
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+ break; /* while !buffer_info->skb */
+ }
+ rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
- if((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();
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[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);
+ }
+}
+
+/**
+ * e1000_alloc_rx_buffers_ps - Replace used receive buffers; packet split
+ * @adapter: address of board private structure
+ **/
+
+static void
+e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
+ struct e1000_rx_ring *rx_ring,
+ int cleaned_count)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_rx_desc_packet_split *rx_desc;
+ struct e1000_buffer *buffer_info;
+ struct e1000_ps_page *ps_page;
+ struct e1000_ps_page_dma *ps_page_dma;
+ struct sk_buff *skb;
+ unsigned int i, j;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+ ps_page = &rx_ring->ps_page[i];
+ ps_page_dma = &rx_ring->ps_page_dma[i];
+
+ while (cleaned_count--) {
+ rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
+
+ 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])) {
+ adapter->alloc_rx_buff_failed++;
+ goto no_buffers;
+ }
+ ps_page_dma->ps_page_dma[j] =
+ pci_map_page(pdev,
+ ps_page->ps_page[j],
+ 0, PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+ }
+ /* Refresh the desc even if buffer_addrs didn't
+ * change because each write-back erases
+ * this info.
+ */
+ rx_desc->read.buffer_addr[j+1] =
+ cpu_to_le64(ps_page_dma->ps_page_dma[j]);
+ } else
+ rx_desc->read.buffer_addr[j+1] = ~0;
+ }
+
+ skb = dev_alloc_skb(adapter->rx_ps_bsize0 + NET_IP_ALIGN);
- E1000_WRITE_REG(&adapter->hw, RDT, i);
+ if (unlikely(!skb)) {
+ adapter->alloc_rx_buff_failed++;
+ break;
}
- if(++i == rx_ring->count) i = 0;
+ /* Make buffer alignment 2 beyond a 16 byte boundary
+ * this will result in a 16 byte aligned IP header after
+ * the 14 byte MAC header is removed
+ */
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ skb->dev = netdev;
+
+ buffer_info->skb = skb;
+ buffer_info->length = adapter->rx_ps_bsize0;
+ buffer_info->dma = pci_map_single(pdev, skb->data,
+ adapter->rx_ps_bsize0,
+ PCI_DMA_FROMDEVICE);
+
+ rx_desc->read.buffer_addr[0] = cpu_to_le64(buffer_info->dma);
+
+ 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];
}
- rx_ring->next_to_use = i;
+no_buffers:
+ 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;
}
static int
e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
struct mii_ioctl_data *data = if_mii(ifr);
int retval;
uint16_t mii_reg;
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) {
case SIOCGMIIREG:
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,
- &data->val_out))
+ &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 (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,
- data->val_in))
+ mii_reg)) {
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
return -EIO;
+ }
if (adapter->hw.phy_type == e1000_phy_m88) {
switch (data->reg_num) {
case PHY_CTRL:
- if(data->val_in & MII_CR_AUTO_NEG_EN) {
+ if (mii_reg & MII_CR_POWER_DOWN)
+ break;
+ if (mii_reg & MII_CR_AUTO_NEG_EN) {
adapter->hw.autoneg = 1;
adapter->hw.autoneg_advertised = 0x2F;
} else {
- if (data->val_in & 0x40)
+ if (mii_reg & 0x40)
spddplx = SPEED_1000;
- else if (data->val_in & 0x2000)
+ else if (mii_reg & 0x2000)
spddplx = SPEED_100;
else
spddplx = SPEED_10;
- spddplx += (data->val_in & 0x100)
+ spddplx += (mii_reg & 0x100)
? FULL_DUPLEX :
HALF_DUPLEX;
retval = e1000_set_spd_dplx(adapter,
spddplx);
- if(retval)
+ if (retval) {
+ spin_unlock_irqrestore(
+ &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;
+ }
+ break;
+ }
+ } else {
+ switch (data->reg_num) {
+ case PHY_CTRL:
+ if (mii_reg & MII_CR_POWER_DOWN)
+ break;
+ if (netif_running(adapter->netdev)) {
+ e1000_down(adapter);
+ e1000_up(adapter);
+ } else
+ e1000_reset(adapter);
break;
}
}
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
break;
default:
return -EOPNOTSUPP;
return E1000_SUCCESS;
}
-/**
- * e1000_rx_checksum - Receive Checksum Offload for 82543
- * @adapter: board private structure
- * @rx_desc: receive descriptor
- * @sk_buff: socket buffer with received data
- **/
-
-static inline void
-e1000_rx_checksum(struct e1000_adapter *adapter,
- struct e1000_rx_desc *rx_desc,
- struct sk_buff *skb)
-{
- /* 82543 or newer only */
- if((adapter->hw.mac_type < e1000_82543) ||
- /* Ignore Checksum bit is set */
- (rx_desc->status & E1000_RXD_STAT_IXSM) ||
- /* TCP Checksum has not been calculated */
- (!(rx_desc->status & E1000_RXD_STAT_TCPCS))) {
- skb->ip_summed = CHECKSUM_NONE;
- return;
- }
-
- /* At this point we know the hardware did the TCP checksum */
- /* now look at the TCP checksum error bit */
- if(rx_desc->errors & E1000_RXD_ERR_TCPE) {
- /* let the stack verify checksum errors */
- skb->ip_summed = CHECKSUM_NONE;
- adapter->hw_csum_err++;
- } else {
- /* TCP checksum is good */
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- adapter->hw_csum_good++;
- }
-}
-
void
e1000_pci_set_mwi(struct e1000_hw *hw)
{
struct e1000_adapter *adapter = hw->back;
+ int ret_val = pci_set_mwi(adapter->pdev);
- pci_set_mwi(adapter->pdev);
+ if (ret_val)
+ DPRINTK(PROBE, ERR, "Error in setting MWI\n");
}
void
static void
e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t ctrl, rctl;
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;
E1000_WRITE_REG(&adapter->hw, CTRL, ctrl);
/* enable VLAN receive filtering */
-
rctl = E1000_READ_REG(&adapter->hw, RCTL);
rctl |= E1000_RCTL_VFE;
rctl &= ~E1000_RCTL_CFIEN;
E1000_WRITE_REG(&adapter->hw, RCTL, rctl);
+ e1000_update_mng_vlan(adapter);
} else {
/* disable VLAN tag insert/strip */
-
ctrl = E1000_READ_REG(&adapter->hw, CTRL);
ctrl &= ~E1000_CTRL_VME;
E1000_WRITE_REG(&adapter->hw, CTRL, ctrl);
/* disable VLAN filtering */
-
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) {
+ e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+ adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+ }
}
e1000_irq_enable(adapter);
static void
e1000_vlan_rx_add_vid(struct net_device *netdev, uint16_t vid)
{
- struct e1000_adapter *adapter = netdev->priv;
+ 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))
+ return;
/* add VID to filter table */
-
index = (vid >> 5) & 0x7F;
vfta = E1000_READ_REG_ARRAY(&adapter->hw, VFTA, index);
vfta |= (1 << (vid & 0x1F));
static void
e1000_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid)
{
- struct e1000_adapter *adapter = netdev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
uint32_t vfta, index;
e1000_irq_disable(adapter);
- if(adapter->vlgrp)
+ if (adapter->vlgrp)
adapter->vlgrp->vlan_devices[vid] = NULL;
e1000_irq_enable(adapter);
- /* remove VID from filter table*/
+ 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);
+ return;
+ }
+ /* remove VID from filter table */
index = (vid >> 5) & 0x7F;
vfta = E1000_READ_REG_ARRAY(&adapter->hw, VFTA, index);
vfta &= ~(1 << (vid & 0x1F));
{
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;
- switch(spddplx) {
+ /* Fiber NICs only allow 1000 gbps Full duplex */
+ 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) {
case SPEED_10 + DUPLEX_HALF:
adapter->hw.forced_speed_duplex = e1000_10_half;
break;
break;
case SPEED_1000 + DUPLEX_HALF: /* not supported */
default:
+ DPRINTK(PROBE, ERR, "Unsupported Speed/Duplex configuration\n");
return -EINVAL;
}
return 0;
}
+#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_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
+e1000_pci_save_state(struct e1000_adapter *adapter)
{
- struct pci_dev *pdev = NULL;
+ 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;
- switch(event) {
- case SYS_DOWN:
- case SYS_HALT:
- case SYS_POWER_OFF:
- while((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev))) {
- if(pci_dev_driver(pdev) == &e1000_driver)
- e1000_suspend(pdev, 3);
- }
+ 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;
}
- return NOTIFY_DONE;
+ 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, uint32_t state)
+e1000_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev->priv;
+ 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, CTRL_EXT, ctrl_ext);
}
+ /* Allow time for pending master requests to run */
+ e1000_disable_pciex_master(&adapter->hw);
+
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, adapter->pci_state);
-
- 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");
}
}
- state = (state > 0) ? 3 : 0;
- pci_set_power_state(pdev, state);
+ /* Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant. */
+ e1000_release_hw_control(adapter);
+
+ pci_disable_device(pdev);
+
+ retval = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ if (retval)
+ DPRINTK(PROBE, ERR, "Error in setting power state\n");
return 0;
}
e1000_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
- struct e1000_adapter *adapter = netdev->priv;
- uint32_t manc;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ int retval;
+ uint32_t manc, ret_val;
- pci_set_power_state(pdev, 0);
- pci_restore_state(pdev, adapter->pci_state);
+ 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, 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);
+ 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);
E1000_WRITE_REG(&adapter->hw, MANC, manc);
}
+ /* If the controller is 82573 and f/w is AMT, do not set
+ * DRV_LOAD until the interface is up. For all other cases,
+ * let the f/w know that the h/w is now under the control
+ * of the driver. */
+ if (adapter->hw.mac_type != e1000_82573 ||
+ !e1000_check_mng_mode(&adapter->hw))
+ e1000_get_hw_control(adapter);
+
return 0;
}
#endif
-
#ifdef CONFIG_NET_POLL_CONTROLLER
/*
* Polling 'interrupt' - used by things like netconsole to send skbs
* without having to re-enable interrupts. It's not called while
* the interrupt routine is executing.
*/
-
-static void e1000_netpoll (struct net_device *dev)
+static void
+e1000_netpoll(struct net_device *netdev)
{
- struct e1000_adapter *adapter = dev->priv;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
disable_irq(adapter->pdev->irq);
- e1000_intr (adapter->pdev->irq, dev, NULL);
+ e1000_intr(adapter->pdev->irq, netdev, NULL);
+ e1000_clean_tx_irq(adapter, adapter->tx_ring);
+#ifndef CONFIG_E1000_NAPI
+ adapter->clean_rx(adapter, adapter->rx_ring);
+#endif
enable_irq(adapter->pdev->irq);
}
#endif