--- a/devices/Makefile.am Tue Sep 30 12:33:03 2008 +0000
+++ b/devices/Makefile.am Tue Sep 30 12:33:28 2008 +0000
@@ -51,8 +51,6 @@
8139too-2.6.24-ethercat.c \
8139too-2.6.24-orig.c \
Kbuild.in \
- e100-2.6.18-ethercat.c \
- e100-2.6.18-orig.c \
e100-2.6.20-ethercat.c \
e100-2.6.20-orig.c \
ecdev.h \
--- a/devices/e100-2.6.18-ethercat.c Tue Sep 30 12:33:03 2008 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,3074 +0,0 @@
-/******************************************************************************
- *
- * $Id$
- *
- * Copyright (C) 2007 Florian Pose, Ingenieurgemeinschaft IgH
- *
- * This file is part of the IgH EtherCAT Master.
- *
- * The IgH EtherCAT Master 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 Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * The IgH EtherCAT Master is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the IgH EtherCAT Master; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * The right to use EtherCAT Technology is granted and comes free of
- * charge under condition of compatibility of product made by
- * Licensee. People intending to distribute/sell products based on the
- * code, have to sign an agreement to guarantee that products using
- * software based on IgH EtherCAT master stay compatible with the actual
- * EtherCAT specification (which are released themselves as an open
- * standard) as the (only) precondition to have the right to use EtherCAT
- * Technology, IP and trade marks.
- *
- *****************************************************************************/
-
-/**
- \file
- EtherCAT driver for e100-compatible NICs.
-*/
-
-/* Former documentation: */
-
-/*******************************************************************************
-
- 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
- Software Foundation; either version 2 of the License, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc., 59
- Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- The full GNU General Public License is included in this distribution in the
- file called LICENSE.
-
- Contact Information:
- Linux NICS <linux.nics@intel.com>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
-
-/*
- * e100.c: Intel(R) PRO/100 ethernet driver
- *
- * (Re)written 2003 by scott.feldman@intel.com. Based loosely on
- * original e100 driver, but better described as a munging of
- * e100, e1000, eepro100, tg3, 8139cp, and other drivers.
- *
- * References:
- * Intel 8255x 10/100 Mbps Ethernet Controller Family,
- * Open Source Software Developers Manual,
- * http://sourceforge.net/projects/e1000
- *
- *
- * Theory of Operation
- *
- * I. General
- *
- * The driver supports Intel(R) 10/100 Mbps PCI Fast Ethernet
- * controller family, which includes the 82557, 82558, 82559, 82550,
- * 82551, and 82562 devices. 82558 and greater controllers
- * integrate the Intel 82555 PHY. The controllers are used in
- * server and client network interface cards, as well as in
- * LAN-On-Motherboard (LOM), CardBus, MiniPCI, and ICHx
- * configurations. 8255x supports a 32-bit linear addressing
- * mode and operates at 33Mhz PCI clock rate.
- *
- * II. Driver Operation
- *
- * Memory-mapped mode is used exclusively to access the device's
- * shared-memory structure, the Control/Status Registers (CSR). All
- * setup, configuration, and control of the device, including queuing
- * of Tx, Rx, and configuration commands is through the CSR.
- * cmd_lock serializes accesses to the CSR command register. cb_lock
- * protects the shared Command Block List (CBL).
- *
- * 8255x is highly MII-compliant and all access to the PHY go
- * through the Management Data Interface (MDI). Consequently, the
- * driver leverages the mii.c library shared with other MII-compliant
- * devices.
- *
- * Big- and Little-Endian byte order as well as 32- and 64-bit
- * archs are supported. Weak-ordered memory and non-cache-coherent
- * archs are supported.
- *
- * III. Transmit
- *
- * A Tx skb is mapped and hangs off of a TCB. TCBs are linked
- * together in a fixed-size ring (CBL) thus forming the flexible mode
- * memory structure. A TCB marked with the suspend-bit indicates
- * the end of the ring. The last TCB processed suspends the
- * controller, and the controller can be restarted by issue a CU
- * resume command to continue from the suspend point, or a CU start
- * command to start at a given position in the ring.
- *
- * Non-Tx commands (config, multicast setup, etc) are linked
- * into the CBL ring along with Tx commands. The common structure
- * used for both Tx and non-Tx commands is the Command Block (CB).
- *
- * cb_to_use is the next CB to use for queuing a command; cb_to_clean
- * is the next CB to check for completion; cb_to_send is the first
- * CB to start on in case of a previous failure to resume. CB clean
- * up happens in interrupt context in response to a CU interrupt.
- * cbs_avail keeps track of number of free CB resources available.
- *
- * Hardware padding of short packets to minimum packet size is
- * enabled. 82557 pads with 7Eh, while the later controllers pad
- * with 00h.
- *
- * IV. Recieve
- *
- * The Receive Frame Area (RFA) comprises a ring of Receive Frame
- * Descriptors (RFD) + data buffer, thus forming the simplified mode
- * memory structure. Rx skbs are allocated to contain both the RFD
- * and the data buffer, but the RFD is pulled off before the skb is
- * indicated. The data buffer is aligned such that encapsulated
- * protocol headers are u32-aligned. Since the RFD is part of the
- * mapped shared memory, and completion status is contained within
- * the RFD, the RFD must be dma_sync'ed to maintain a consistent
- * view from software and hardware.
- *
- * Under typical operation, the receive unit (RU) is start once,
- * and the controller happily fills RFDs as frames arrive. If
- * replacement RFDs cannot be allocated, or the RU goes non-active,
- * the RU must be restarted. Frame arrival generates an interrupt,
- * and Rx indication and re-allocation happen in the same context,
- * therefore no locking is required. A software-generated interrupt
- * is generated from the watchdog to recover from a failed allocation
- * senario where all Rx resources have been indicated and none re-
- * placed.
- *
- * V. Miscellaneous
- *
- * VLAN offloading of tagging, stripping and filtering is not
- * supported, but driver will accommodate the extra 4-byte VLAN tag
- * for processing by upper layers. Tx/Rx Checksum offloading is not
- * supported. Tx Scatter/Gather is not supported. Jumbo Frames is
- * not supported (hardware limitation).
- *
- * MagicPacket(tm) WoL support is enabled/disabled via ethtool.
- *
- * Thanks to JC (jchapman@katalix.com) for helping with
- * testing/troubleshooting the development driver.
- *
- * TODO:
- * o several entry points race with dev->close
- * o check for tx-no-resources/stop Q races with tx clean/wake Q
- *
- * FIXES:
- * 2005/12/02 - Michael O'Donnell <Michael.ODonnell at stratus dot com>
- * - Stratus87247: protect MDI control register manipulations
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/skbuff.h>
-#include <linux/ethtool.h>
-#include <linux/string.h>
-#include <asm/unaligned.h>
-
-// EtherCAT includes
-#include "../globals.h"
-#include "ecdev.h"
-
-#define DRV_NAME "ec_e100"
-#define DRV_EXT "-NAPI"
-#define DRV_VERSION "3.5.10-k2"DRV_EXT
-#define DRV_DESCRIPTION "EtherCAT-capable Intel(R) PRO/100 Network Driver"
-#define PFX DRV_NAME ": "
-
-#define E100_WATCHDOG_PERIOD (2 * HZ)
-#define E100_NAPI_WEIGHT 16
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION ", master " EC_MASTER_VERSION);
-
-// EtherCAT variables
-static int ec_device_index = -1;
-static int ec_device_master_index = 0;
-struct net_device *e100_ec_netdev = NULL;
-unsigned int e100_device_index = 0;
-
-// EtherCAT module parameters
-module_param(ec_device_index, int, -1);
-module_param(ec_device_master_index, int, 0);
-MODULE_PARM_DESC(ec_device_index,
- "Index of the device reserved for EtherCAT.");
-MODULE_PARM_DESC(ec_device_master_index,
- "Index of the EtherCAT master to register the device.");
-
-void e100_ec_poll(struct net_device *);
-
-static int debug = 3;
-static int eeprom_bad_csum_allow = 0;
-module_param(debug, int, 0);
-module_param(eeprom_bad_csum_allow, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums");
-#define DPRINTK(nlevel, klevel, fmt, args...) \
- (void)((NETIF_MSG_##nlevel & nic->msg_enable) && \
- printk(KERN_##klevel PFX "%s: %s: " fmt, nic->netdev->name, \
- __FUNCTION__ , ## args))
-
-#define INTEL_8255X_ETHERNET_DEVICE(device_id, ich) {\
- PCI_VENDOR_ID_INTEL, device_id, PCI_ANY_ID, PCI_ANY_ID, \
- PCI_CLASS_NETWORK_ETHERNET << 8, 0xFFFF00, ich }
-static struct pci_device_id e100_id_table[] = {
- INTEL_8255X_ETHERNET_DEVICE(0x1029, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1030, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1031, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1032, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1033, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1034, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1038, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1039, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103A, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103B, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103C, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103D, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103E, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x1050, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1051, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1052, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1053, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1054, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1055, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1056, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1057, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1059, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1064, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1065, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1066, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1067, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1068, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1069, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x106A, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x106B, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1091, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1092, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1093, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1094, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1095, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1209, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1229, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x2449, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x2459, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x245D, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x27DC, 7),
- { 0, }
-};
-// prevent from being loaded automatically
-//MODULE_DEVICE_TABLE(pci, e100_id_table);
-
-enum mac {
- mac_82557_D100_A = 0,
- mac_82557_D100_B = 1,
- mac_82557_D100_C = 2,
- mac_82558_D101_A4 = 4,
- mac_82558_D101_B0 = 5,
- mac_82559_D101M = 8,
- mac_82559_D101S = 9,
- mac_82550_D102 = 12,
- mac_82550_D102_C = 13,
- mac_82551_E = 14,
- mac_82551_F = 15,
- mac_82551_10 = 16,
- mac_unknown = 0xFF,
-};
-
-enum phy {
- phy_100a = 0x000003E0,
- phy_100c = 0x035002A8,
- phy_82555_tx = 0x015002A8,
- phy_nsc_tx = 0x5C002000,
- phy_82562_et = 0x033002A8,
- phy_82562_em = 0x032002A8,
- phy_82562_ek = 0x031002A8,
- phy_82562_eh = 0x017002A8,
- phy_unknown = 0xFFFFFFFF,
-};
-
-/* CSR (Control/Status Registers) */
-struct csr {
- struct {
- u8 status;
- u8 stat_ack;
- u8 cmd_lo;
- u8 cmd_hi;
- u32 gen_ptr;
- } scb;
- u32 port;
- u16 flash_ctrl;
- u8 eeprom_ctrl_lo;
- u8 eeprom_ctrl_hi;
- u32 mdi_ctrl;
- u32 rx_dma_count;
-};
-
-enum scb_status {
- rus_ready = 0x10,
- rus_mask = 0x3C,
-};
-
-enum ru_state {
- RU_SUSPENDED = 0,
- RU_RUNNING = 1,
- RU_UNINITIALIZED = -1,
-};
-
-enum scb_stat_ack {
- stat_ack_not_ours = 0x00,
- stat_ack_sw_gen = 0x04,
- stat_ack_rnr = 0x10,
- stat_ack_cu_idle = 0x20,
- stat_ack_frame_rx = 0x40,
- stat_ack_cu_cmd_done = 0x80,
- stat_ack_not_present = 0xFF,
- stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx),
- stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done),
-};
-
-enum scb_cmd_hi {
- irq_mask_none = 0x00,
- irq_mask_all = 0x01,
- irq_sw_gen = 0x02,
-};
-
-enum scb_cmd_lo {
- cuc_nop = 0x00,
- ruc_start = 0x01,
- ruc_load_base = 0x06,
- cuc_start = 0x10,
- cuc_resume = 0x20,
- cuc_dump_addr = 0x40,
- cuc_dump_stats = 0x50,
- cuc_load_base = 0x60,
- cuc_dump_reset = 0x70,
-};
-
-enum cuc_dump {
- cuc_dump_complete = 0x0000A005,
- cuc_dump_reset_complete = 0x0000A007,
-};
-
-enum port {
- software_reset = 0x0000,
- selftest = 0x0001,
- selective_reset = 0x0002,
-};
-
-enum eeprom_ctrl_lo {
- eesk = 0x01,
- eecs = 0x02,
- eedi = 0x04,
- eedo = 0x08,
-};
-
-enum mdi_ctrl {
- mdi_write = 0x04000000,
- mdi_read = 0x08000000,
- mdi_ready = 0x10000000,
-};
-
-enum eeprom_op {
- op_write = 0x05,
- op_read = 0x06,
- op_ewds = 0x10,
- op_ewen = 0x13,
-};
-
-enum eeprom_offsets {
- eeprom_cnfg_mdix = 0x03,
- eeprom_id = 0x0A,
- eeprom_config_asf = 0x0D,
- eeprom_smbus_addr = 0x90,
-};
-
-enum eeprom_cnfg_mdix {
- eeprom_mdix_enabled = 0x0080,
-};
-
-enum eeprom_id {
- eeprom_id_wol = 0x0020,
-};
-
-enum eeprom_config_asf {
- eeprom_asf = 0x8000,
- eeprom_gcl = 0x4000,
-};
-
-enum cb_status {
- cb_complete = 0x8000,
- cb_ok = 0x2000,
-};
-
-enum cb_command {
- cb_nop = 0x0000,
- cb_iaaddr = 0x0001,
- cb_config = 0x0002,
- cb_multi = 0x0003,
- cb_tx = 0x0004,
- cb_ucode = 0x0005,
- cb_dump = 0x0006,
- cb_tx_sf = 0x0008,
- cb_cid = 0x1f00,
- cb_i = 0x2000,
- cb_s = 0x4000,
- cb_el = 0x8000,
-};
-
-struct rfd {
- u16 status;
- u16 command;
- u32 link;
- u32 rbd;
- u16 actual_size;
- u16 size;
-};
-
-struct rx {
- struct rx *next, *prev;
- struct sk_buff *skb;
- dma_addr_t dma_addr;
-};
-
-#if defined(__BIG_ENDIAN_BITFIELD)
-#define X(a,b) b,a
-#else
-#define X(a,b) a,b
-#endif
-struct config {
-/*0*/ u8 X(byte_count:6, pad0:2);
-/*1*/ u8 X(X(rx_fifo_limit:4, tx_fifo_limit:3), pad1:1);
-/*2*/ u8 adaptive_ifs;
-/*3*/ u8 X(X(X(X(mwi_enable:1, type_enable:1), read_align_enable:1),
- term_write_cache_line:1), pad3:4);
-/*4*/ u8 X(rx_dma_max_count:7, pad4:1);
-/*5*/ u8 X(tx_dma_max_count:7, dma_max_count_enable:1);
-/*6*/ u8 X(X(X(X(X(X(X(late_scb_update:1, direct_rx_dma:1),
- tno_intr:1), cna_intr:1), standard_tcb:1), standard_stat_counter:1),
- rx_discard_overruns:1), rx_save_bad_frames:1);
-/*7*/ u8 X(X(X(X(X(rx_discard_short_frames:1, tx_underrun_retry:2),
- pad7:2), rx_extended_rfd:1), tx_two_frames_in_fifo:1),
- tx_dynamic_tbd:1);
-/*8*/ u8 X(X(mii_mode:1, pad8:6), csma_disabled:1);
-/*9*/ u8 X(X(X(X(X(rx_tcpudp_checksum:1, pad9:3), vlan_arp_tco:1),
- link_status_wake:1), arp_wake:1), mcmatch_wake:1);
-/*10*/ u8 X(X(X(pad10:3, no_source_addr_insertion:1), preamble_length:2),
- loopback:2);
-/*11*/ u8 X(linear_priority:3, pad11:5);
-/*12*/ u8 X(X(linear_priority_mode:1, pad12:3), ifs:4);
-/*13*/ u8 ip_addr_lo;
-/*14*/ u8 ip_addr_hi;
-/*15*/ u8 X(X(X(X(X(X(X(promiscuous_mode:1, broadcast_disabled:1),
- wait_after_win:1), pad15_1:1), ignore_ul_bit:1), crc_16_bit:1),
- pad15_2:1), crs_or_cdt:1);
-/*16*/ u8 fc_delay_lo;
-/*17*/ u8 fc_delay_hi;
-/*18*/ u8 X(X(X(X(X(rx_stripping:1, tx_padding:1), rx_crc_transfer:1),
- rx_long_ok:1), fc_priority_threshold:3), pad18:1);
-/*19*/ u8 X(X(X(X(X(X(X(addr_wake:1, magic_packet_disable:1),
- fc_disable:1), fc_restop:1), fc_restart:1), fc_reject:1),
- full_duplex_force:1), full_duplex_pin:1);
-/*20*/ u8 X(X(X(pad20_1:5, fc_priority_location:1), multi_ia:1), pad20_2:1);
-/*21*/ u8 X(X(pad21_1:3, multicast_all:1), pad21_2:4);
-/*22*/ u8 X(X(rx_d102_mode:1, rx_vlan_drop:1), pad22:6);
- u8 pad_d102[9];
-};
-
-#define E100_MAX_MULTICAST_ADDRS 64
-struct multi {
- u16 count;
- u8 addr[E100_MAX_MULTICAST_ADDRS * ETH_ALEN + 2/*pad*/];
-};
-
-/* Important: keep total struct u32-aligned */
-#define UCODE_SIZE 134
-struct cb {
- u16 status;
- u16 command;
- u32 link;
- union {
- u8 iaaddr[ETH_ALEN];
- u32 ucode[UCODE_SIZE];
- struct config config;
- struct multi multi;
- struct {
- u32 tbd_array;
- u16 tcb_byte_count;
- u8 threshold;
- u8 tbd_count;
- struct {
- u32 buf_addr;
- u16 size;
- u16 eol;
- } tbd;
- } tcb;
- u32 dump_buffer_addr;
- } u;
- struct cb *next, *prev;
- dma_addr_t dma_addr;
- struct sk_buff *skb;
-};
-
-enum loopback {
- lb_none = 0, lb_mac = 1, lb_phy = 3,
-};
-
-struct stats {
- u32 tx_good_frames, tx_max_collisions, tx_late_collisions,
- tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions,
- tx_multiple_collisions, tx_total_collisions;
- u32 rx_good_frames, rx_crc_errors, rx_alignment_errors,
- rx_resource_errors, rx_overrun_errors, rx_cdt_errors,
- rx_short_frame_errors;
- u32 fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported;
- u16 xmt_tco_frames, rcv_tco_frames;
- u32 complete;
-};
-
-struct mem {
- struct {
- u32 signature;
- u32 result;
- } selftest;
- struct stats stats;
- u8 dump_buf[596];
-};
-
-struct param_range {
- u32 min;
- u32 max;
- u32 count;
-};
-
-struct params {
- struct param_range rfds;
- struct param_range cbs;
-};
-
-struct nic {
- /* Begin: frequently used values: keep adjacent for cache effect */
- u32 msg_enable ____cacheline_aligned;
- struct net_device *netdev;
- struct pci_dev *pdev;
-
- struct rx *rxs ____cacheline_aligned;
- struct rx *rx_to_use;
- struct rx *rx_to_clean;
- struct rfd blank_rfd;
- enum ru_state ru_running;
-
- spinlock_t cb_lock ____cacheline_aligned;
- spinlock_t cmd_lock;
- struct csr __iomem *csr;
- enum scb_cmd_lo cuc_cmd;
- unsigned int cbs_avail;
- struct cb *cbs;
- struct cb *cb_to_use;
- struct cb *cb_to_send;
- struct cb *cb_to_clean;
- u16 tx_command;
- /* End: frequently used values: keep adjacent for cache effect */
-
- enum {
- ich = (1 << 0),
- promiscuous = (1 << 1),
- multicast_all = (1 << 2),
- wol_magic = (1 << 3),
- ich_10h_workaround = (1 << 4),
- } flags ____cacheline_aligned;
-
- enum mac mac;
- enum phy phy;
- struct params params;
- struct net_device_stats net_stats;
- struct timer_list watchdog;
- struct timer_list blink_timer;
- struct mii_if_info mii;
- struct work_struct tx_timeout_task;
- enum loopback loopback;
-
- struct mem *mem;
- dma_addr_t dma_addr;
-
- dma_addr_t cbs_dma_addr;
- u8 adaptive_ifs;
- u8 tx_threshold;
- u32 tx_frames;
- u32 tx_collisions;
- u32 tx_deferred;
- u32 tx_single_collisions;
- u32 tx_multiple_collisions;
- u32 tx_fc_pause;
- u32 tx_tco_frames;
-
- u32 rx_fc_pause;
- u32 rx_fc_unsupported;
- u32 rx_tco_frames;
- u32 rx_over_length_errors;
-
- u8 rev_id;
- u16 leds;
- u16 eeprom_wc;
- u16 eeprom[256];
- spinlock_t mdio_lock;
-
- u8 ethercat;
- ec_device_t *ecdev;
-};
-
-static inline void e100_write_flush(struct nic *nic)
-{
- /* Flush previous PCI writes through intermediate bridges
- * by doing a benign read */
- (void)readb(&nic->csr->scb.status);
-}
-
-static void e100_enable_irq(struct nic *nic)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
- writeb(irq_mask_none, &nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-}
-
-static void e100_disable_irq(struct nic *nic)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
- writeb(irq_mask_all, &nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-}
-
-static void e100_hw_reset(struct nic *nic)
-{
- /* Put CU and RU into idle with a selective reset to get
- * device off of PCI bus */
- writel(selective_reset, &nic->csr->port);
- e100_write_flush(nic); udelay(20);
-
- /* Now fully reset device */
- writel(software_reset, &nic->csr->port);
- e100_write_flush(nic); udelay(20);
-
- /* Mask off our interrupt line - it's unmasked after reset */
- e100_disable_irq(nic);
-}
-
-static int e100_self_test(struct nic *nic)
-{
- u32 dma_addr = nic->dma_addr + offsetof(struct mem, selftest);
-
- /* Passing the self-test is a pretty good indication
- * that the device can DMA to/from host memory */
-
- nic->mem->selftest.signature = 0;
- nic->mem->selftest.result = 0xFFFFFFFF;
-
- writel(selftest | dma_addr, &nic->csr->port);
- e100_write_flush(nic);
- /* Wait 10 msec for self-test to complete */
- msleep(10);
-
- /* Interrupts are enabled after self-test */
- e100_disable_irq(nic);
-
- /* Check results of self-test */
- if(nic->mem->selftest.result != 0) {
- DPRINTK(HW, ERR, "Self-test failed: result=0x%08X\n",
- nic->mem->selftest.result);
- return -ETIMEDOUT;
- }
- if(nic->mem->selftest.signature == 0) {
- DPRINTK(HW, ERR, "Self-test failed: timed out\n");
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static void e100_eeprom_write(struct nic *nic, u16 addr_len, u16 addr, u16 data)
-{
- u32 cmd_addr_data[3];
- u8 ctrl;
- int i, j;
-
- /* Three cmds: write/erase enable, write data, write/erase disable */
- cmd_addr_data[0] = op_ewen << (addr_len - 2);
- cmd_addr_data[1] = (((op_write << addr_len) | addr) << 16) |
- cpu_to_le16(data);
- cmd_addr_data[2] = op_ewds << (addr_len - 2);
-
- /* Bit-bang cmds to write word to eeprom */
- for(j = 0; j < 3; j++) {
-
- /* Chip select */
- writeb(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- for(i = 31; i >= 0; i--) {
- ctrl = (cmd_addr_data[j] & (1 << i)) ?
- eecs | eedi : eecs;
- writeb(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- writeb(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
- /* Wait 10 msec for cmd to complete */
- msleep(10);
-
- /* Chip deselect */
- writeb(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
-};
-
-/* General technique stolen from the eepro100 driver - very clever */
-static u16 e100_eeprom_read(struct nic *nic, u16 *addr_len, u16 addr)
-{
- u32 cmd_addr_data;
- u16 data = 0;
- u8 ctrl;
- int i;
-
- cmd_addr_data = ((op_read << *addr_len) | addr) << 16;
-
- /* Chip select */
- writeb(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- /* Bit-bang to read word from eeprom */
- for(i = 31; i >= 0; i--) {
- ctrl = (cmd_addr_data & (1 << i)) ? eecs | eedi : eecs;
- writeb(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- writeb(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- /* Eeprom drives a dummy zero to EEDO after receiving
- * complete address. Use this to adjust addr_len. */
- ctrl = readb(&nic->csr->eeprom_ctrl_lo);
- if(!(ctrl & eedo) && i > 16) {
- *addr_len -= (i - 16);
- i = 17;
- }
-
- data = (data << 1) | (ctrl & eedo ? 1 : 0);
- }
-
- /* Chip deselect */
- writeb(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- return le16_to_cpu(data);
-};
-
-/* Load entire EEPROM image into driver cache and validate checksum */
-static int e100_eeprom_load(struct nic *nic)
-{
- u16 addr, addr_len = 8, checksum = 0;
-
- /* Try reading with an 8-bit addr len to discover actual addr len */
- e100_eeprom_read(nic, &addr_len, 0);
- nic->eeprom_wc = 1 << addr_len;
-
- for(addr = 0; addr < nic->eeprom_wc; addr++) {
- nic->eeprom[addr] = e100_eeprom_read(nic, &addr_len, addr);
- if(addr < nic->eeprom_wc - 1)
- checksum += cpu_to_le16(nic->eeprom[addr]);
- }
-
- /* The checksum, stored in the last word, is calculated such that
- * the sum of words should be 0xBABA */
- checksum = le16_to_cpu(0xBABA - checksum);
- if(checksum != nic->eeprom[nic->eeprom_wc - 1]) {
- DPRINTK(PROBE, ERR, "EEPROM corrupted\n");
- if (!eeprom_bad_csum_allow)
- return -EAGAIN;
- }
-
- return 0;
-}
-
-/* Save (portion of) driver EEPROM cache to device and update checksum */
-static int e100_eeprom_save(struct nic *nic, u16 start, u16 count)
-{
- u16 addr, addr_len = 8, checksum = 0;
-
- /* Try reading with an 8-bit addr len to discover actual addr len */
- e100_eeprom_read(nic, &addr_len, 0);
- nic->eeprom_wc = 1 << addr_len;
-
- if(start + count >= nic->eeprom_wc)
- return -EINVAL;
-
- for(addr = start; addr < start + count; addr++)
- e100_eeprom_write(nic, addr_len, addr, nic->eeprom[addr]);
-
- /* The checksum, stored in the last word, is calculated such that
- * the sum of words should be 0xBABA */
- for(addr = 0; addr < nic->eeprom_wc - 1; addr++)
- checksum += cpu_to_le16(nic->eeprom[addr]);
- nic->eeprom[nic->eeprom_wc - 1] = le16_to_cpu(0xBABA - checksum);
- e100_eeprom_write(nic, addr_len, nic->eeprom_wc - 1,
- nic->eeprom[nic->eeprom_wc - 1]);
-
- return 0;
-}
-
-#define E100_WAIT_SCB_TIMEOUT 20000 /* we might have to wait 100ms!!! */
-#define E100_WAIT_SCB_FAST 20 /* delay like the old code */
-static int e100_exec_cmd(struct nic *nic, u8 cmd, dma_addr_t dma_addr)
-{
- unsigned long flags = 0;
- unsigned int i;
- int err = 0;
-
- if (!nic->ethercat)
- spin_lock_irqsave(&nic->cmd_lock, flags);
-
- /* Previous command is accepted when SCB clears */
- for(i = 0; i < E100_WAIT_SCB_TIMEOUT; i++) {
- if(likely(!readb(&nic->csr->scb.cmd_lo)))
- break;
- cpu_relax();
- if(unlikely(i > E100_WAIT_SCB_FAST))
- udelay(5);
- }
- if(unlikely(i == E100_WAIT_SCB_TIMEOUT)) {
- err = -EAGAIN;
- goto err_unlock;
- }
-
- if(unlikely(cmd != cuc_resume))
- writel(dma_addr, &nic->csr->scb.gen_ptr);
- writeb(cmd, &nic->csr->scb.cmd_lo);
-
-err_unlock:
- if (!nic->ethercat)
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-
- return err;
-}
-
-static int e100_exec_cb(struct nic *nic, struct sk_buff *skb,
- void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
-{
- struct cb *cb;
- unsigned long flags = 0;
- int err = 0;
-
- if (!nic->ethercat)
- spin_lock_irqsave(&nic->cb_lock, flags);
-
- if(unlikely(!nic->cbs_avail)) {
- err = -ENOMEM;
- goto err_unlock;
- }
-
- cb = nic->cb_to_use;
- nic->cb_to_use = cb->next;
- nic->cbs_avail--;
- cb->skb = skb;
-
- if(unlikely(!nic->cbs_avail))
- err = -ENOSPC;
-
- cb_prepare(nic, cb, skb);
-
- /* Order is important otherwise we'll be in a race with h/w:
- * set S-bit in current first, then clear S-bit in previous. */
- cb->command |= cpu_to_le16(cb_s);
- wmb();
- cb->prev->command &= cpu_to_le16(~cb_s);
-
- while(nic->cb_to_send != nic->cb_to_use) {
- if(unlikely(e100_exec_cmd(nic, nic->cuc_cmd,
- nic->cb_to_send->dma_addr))) {
- /* Ok, here's where things get sticky. It's
- * possible that we can't schedule the command
- * because the controller is too busy, so
- * let's just queue the command and try again
- * when another command is scheduled. */
- if(err == -ENOSPC) {
- //request a reset
- if (!nic->ethercat)
- schedule_work(&nic->tx_timeout_task);
- }
- break;
- } else {
- nic->cuc_cmd = cuc_resume;
- nic->cb_to_send = nic->cb_to_send->next;
- }
- }
-
-err_unlock:
- if (!nic->ethercat)
- spin_unlock_irqrestore(&nic->cb_lock, flags);
-
- return err;
-}
-
-static u16 mdio_ctrl(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data)
-{
- u32 data_out = 0;
- unsigned int i;
- unsigned long flags;
-
-
- /*
- * Stratus87247: we shouldn't be writing the MDI control
- * register until the Ready bit shows True. Also, since
- * manipulation of the MDI control registers is a multi-step
- * procedure it should be done under lock.
- */
- spin_lock_irqsave(&nic->mdio_lock, flags);
- for (i = 100; i; --i) {
- if (readl(&nic->csr->mdi_ctrl) & mdi_ready)
- break;
- udelay(20);
- }
- if (unlikely(!i)) {
- printk("e100.mdio_ctrl(%s) won't go Ready\n",
- nic->netdev->name );
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- return 0; /* No way to indicate timeout error */
- }
- writel((reg << 16) | (addr << 21) | dir | data, &nic->csr->mdi_ctrl);
-
- for (i = 0; i < 100; i++) {
- udelay(20);
- if ((data_out = readl(&nic->csr->mdi_ctrl)) & mdi_ready)
- break;
- }
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- DPRINTK(HW, DEBUG,
- "%s:addr=%d, reg=%d, data_in=0x%04X, data_out=0x%04X\n",
- dir == mdi_read ? "READ" : "WRITE", addr, reg, data, data_out);
- return (u16)data_out;
-}
-
-static int mdio_read(struct net_device *netdev, int addr, int reg)
-{
- return mdio_ctrl(netdev_priv(netdev), addr, mdi_read, reg, 0);
-}
-
-static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
-{
- mdio_ctrl(netdev_priv(netdev), addr, mdi_write, reg, data);
-}
-
-static void e100_get_defaults(struct nic *nic)
-{
- struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
- struct param_range cbs = { .min = 64, .max = 256, .count = 128 };
-
- pci_read_config_byte(nic->pdev, PCI_REVISION_ID, &nic->rev_id);
- /* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
- nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->rev_id;
- if(nic->mac == mac_unknown)
- nic->mac = mac_82557_D100_A;
-
- nic->params.rfds = rfds;
- nic->params.cbs = cbs;
-
- /* Quadwords to DMA into FIFO before starting frame transmit */
- nic->tx_threshold = 0xE0;
-
- /* no interrupt for every tx completion, delay = 256us if not 557*/
- nic->tx_command = cpu_to_le16(cb_tx | cb_tx_sf |
- ((nic->mac >= mac_82558_D101_A4) ? cb_cid : cb_i));
-
- /* Template for a freshly allocated RFD */
- nic->blank_rfd.command = cpu_to_le16(cb_el);
- nic->blank_rfd.rbd = 0xFFFFFFFF;
- nic->blank_rfd.size = cpu_to_le16(VLAN_ETH_FRAME_LEN);
-
- /* MII setup */
- nic->mii.phy_id_mask = 0x1F;
- nic->mii.reg_num_mask = 0x1F;
- nic->mii.dev = nic->netdev;
- nic->mii.mdio_read = mdio_read;
- nic->mii.mdio_write = mdio_write;
-}
-
-static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- struct config *config = &cb->u.config;
- u8 *c = (u8 *)config;
-
- cb->command = cpu_to_le16(cb_config);
-
- memset(config, 0, sizeof(struct config));
-
- config->byte_count = 0x16; /* bytes in this struct */
- config->rx_fifo_limit = 0x8; /* bytes in FIFO before DMA */
- config->direct_rx_dma = 0x1; /* reserved */
- config->standard_tcb = 0x1; /* 1=standard, 0=extended */
- config->standard_stat_counter = 0x1; /* 1=standard, 0=extended */
- config->rx_discard_short_frames = 0x1; /* 1=discard, 0=pass */
- config->tx_underrun_retry = 0x3; /* # of underrun retries */
- config->mii_mode = 0x1; /* 1=MII mode, 0=503 mode */
- config->pad10 = 0x6;
- config->no_source_addr_insertion = 0x1; /* 1=no, 0=yes */
- config->preamble_length = 0x2; /* 0=1, 1=3, 2=7, 3=15 bytes */
- config->ifs = 0x6; /* x16 = inter frame spacing */
- config->ip_addr_hi = 0xF2; /* ARP IP filter - not used */
- config->pad15_1 = 0x1;
- config->pad15_2 = 0x1;
- config->crs_or_cdt = 0x0; /* 0=CRS only, 1=CRS or CDT */
- config->fc_delay_hi = 0x40; /* time delay for fc frame */
- config->tx_padding = 0x1; /* 1=pad short frames */
- config->fc_priority_threshold = 0x7; /* 7=priority fc disabled */
- config->pad18 = 0x1;
- config->full_duplex_pin = 0x1; /* 1=examine FDX# pin */
- config->pad20_1 = 0x1F;
- config->fc_priority_location = 0x1; /* 1=byte#31, 0=byte#19 */
- config->pad21_1 = 0x5;
-
- config->adaptive_ifs = nic->adaptive_ifs;
- config->loopback = nic->loopback;
-
- if(nic->mii.force_media && nic->mii.full_duplex)
- config->full_duplex_force = 0x1; /* 1=force, 0=auto */
-
- if(nic->flags & promiscuous || nic->loopback) {
- config->rx_save_bad_frames = 0x1; /* 1=save, 0=discard */
- config->rx_discard_short_frames = 0x0; /* 1=discard, 0=save */
- config->promiscuous_mode = 0x1; /* 1=on, 0=off */
- }
-
- if(nic->flags & multicast_all)
- config->multicast_all = 0x1; /* 1=accept, 0=no */
-
- /* disable WoL when up */
- if (nic->ethercat ||
- (netif_running(nic->netdev) || !(nic->flags & wol_magic)))
- config->magic_packet_disable = 0x1; /* 1=off, 0=on */
-
- if(nic->mac >= mac_82558_D101_A4) {
- config->fc_disable = 0x1; /* 1=Tx fc off, 0=Tx fc on */
- config->mwi_enable = 0x1; /* 1=enable, 0=disable */
- config->standard_tcb = 0x0; /* 1=standard, 0=extended */
- config->rx_long_ok = 0x1; /* 1=VLANs ok, 0=standard */
- if(nic->mac >= mac_82559_D101M)
- config->tno_intr = 0x1; /* TCO stats enable */
- else
- config->standard_stat_counter = 0x0;
- }
-
- DPRINTK(HW, DEBUG, "[00-07]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
- DPRINTK(HW, DEBUG, "[08-15]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[8], c[9], c[10], c[11], c[12], c[13], c[14], c[15]);
- DPRINTK(HW, DEBUG, "[16-23]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
-}
-
-/********************************************************/
-/* Micro code for 8086:1229 Rev 8 */
-/********************************************************/
-
-/* Parameter values for the D101M B-step */
-#define D101M_CPUSAVER_TIMER_DWORD 78
-#define D101M_CPUSAVER_BUNDLE_DWORD 65
-#define D101M_CPUSAVER_MIN_SIZE_DWORD 126
-
-#define D101M_B_RCVBUNDLE_UCODE \
-{\
-0x00550215, 0xFFFF0437, 0xFFFFFFFF, 0x06A70789, 0xFFFFFFFF, 0x0558FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380216, \
-0x0010009C, 0x00204056, 0x002380CC, 0x00380056, \
-0x0010009C, 0x00244C0B, 0x00000800, 0x00124818, \
-0x00380438, 0x00000000, 0x00140000, 0x00380555, \
-0x00308000, 0x00100662, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222C21, 0x000C0002, 0x00103093, \
-0x00380C7A, 0x00080000, 0x00103090, 0x00380C7A, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244C2D, 0x00010004, 0x00041000, \
-0x003A0437, 0x00044010, 0x0038078A, 0x00000000, \
-0x00100099, 0x00206C7A, 0x0010009C, 0x00244C48, \
-0x00130824, 0x000C0001, 0x00101213, 0x00260C75, \
-0x00041000, 0x00010004, 0x00130826, 0x000C0006, \
-0x002206A8, 0x0013C926, 0x00101313, 0x003806A8, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380C34, 0x00000000, 0x00000000, \
-0x0021155B, 0x00100099, 0x00206559, 0x0010009C, \
-0x00244559, 0x00130836, 0x000C0000, 0x00220C62, \
-0x000C0001, 0x00101B13, 0x00229C0E, 0x00210C0E, \
-0x00226C0E, 0x00216C0E, 0x0022FC0E, 0x00215C0E, \
-0x00214C0E, 0x00380555, 0x00010004, 0x00041000, \
-0x00278C67, 0x00040800, 0x00018100, 0x003A0437, \
-0x00130826, 0x000C0001, 0x00220559, 0x00101313, \
-0x00380559, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00130831, 0x0010090B, 0x00124813, \
-0x000CFF80, 0x002606AB, 0x00041000, 0x00010004, \
-0x003806A8, 0x00000000, 0x00000000, 0x00000000, \
-}
-
-/********************************************************/
-/* Micro code for 8086:1229 Rev 9 */
-/********************************************************/
-
-/* Parameter values for the D101S */
-#define D101S_CPUSAVER_TIMER_DWORD 78
-#define D101S_CPUSAVER_BUNDLE_DWORD 67
-#define D101S_CPUSAVER_MIN_SIZE_DWORD 128
-
-#define D101S_RCVBUNDLE_UCODE \
-{\
-0x00550242, 0xFFFF047E, 0xFFFFFFFF, 0x06FF0818, 0xFFFFFFFF, 0x05A6FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380243, \
-0x0010009C, 0x00204056, 0x002380D0, 0x00380056, \
-0x0010009C, 0x00244F8B, 0x00000800, 0x00124818, \
-0x0038047F, 0x00000000, 0x00140000, 0x003805A3, \
-0x00308000, 0x00100610, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222FA1, 0x000C0002, 0x00103093, \
-0x00380F90, 0x00080000, 0x00103090, 0x00380F90, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244FAD, 0x00010004, 0x00041000, \
-0x003A047E, 0x00044010, 0x00380819, 0x00000000, \
-0x00100099, 0x00206FFD, 0x0010009A, 0x0020AFFD, \
-0x0010009C, 0x00244FC8, 0x00130824, 0x000C0001, \
-0x00101213, 0x00260FF7, 0x00041000, 0x00010004, \
-0x00130826, 0x000C0006, 0x00220700, 0x0013C926, \
-0x00101313, 0x00380700, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380FB6, 0x00000000, 0x00000000, \
-0x002115A9, 0x00100099, 0x002065A7, 0x0010009A, \
-0x0020A5A7, 0x0010009C, 0x002445A7, 0x00130836, \
-0x000C0000, 0x00220FE4, 0x000C0001, 0x00101B13, \
-0x00229F8E, 0x00210F8E, 0x00226F8E, 0x00216F8E, \
-0x0022FF8E, 0x00215F8E, 0x00214F8E, 0x003805A3, \
-0x00010004, 0x00041000, 0x00278FE9, 0x00040800, \
-0x00018100, 0x003A047E, 0x00130826, 0x000C0001, \
-0x002205A7, 0x00101313, 0x003805A7, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00130831, \
-0x0010090B, 0x00124813, 0x000CFF80, 0x00260703, \
-0x00041000, 0x00010004, 0x00380700 \
-}
-
-/********************************************************/
-/* Micro code for the 8086:1229 Rev F/10 */
-/********************************************************/
-
-/* Parameter values for the D102 E-step */
-#define D102_E_CPUSAVER_TIMER_DWORD 42
-#define D102_E_CPUSAVER_BUNDLE_DWORD 54
-#define D102_E_CPUSAVER_MIN_SIZE_DWORD 46
-
-#define D102_E_RCVBUNDLE_UCODE \
-{\
-0x007D028F, 0x0E4204F9, 0x14ED0C85, 0x14FA14E9, 0x0EF70E36, 0x1FFF1FFF, \
-0x00E014B9, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014BD, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014D5, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C1, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C8, 0x00000000, 0x00000000, 0x00000000, \
-0x00200600, 0x00E014EE, 0x00000000, 0x00000000, \
-0x0030FF80, 0x00940E46, 0x00038200, 0x00102000, \
-0x00E00E43, 0x00000000, 0x00000000, 0x00000000, \
-0x00300006, 0x00E014FB, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000, \
-0x00906EFD, 0x00900EFD, 0x00E00EF8, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-}
-
-static void e100_setup_ucode(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
-/* *INDENT-OFF* */
- static struct {
- u32 ucode[UCODE_SIZE + 1];
- u8 mac;
- u8 timer_dword;
- u8 bundle_dword;
- u8 min_size_dword;
- } ucode_opts[] = {
- { D101M_B_RCVBUNDLE_UCODE,
- mac_82559_D101M,
- D101M_CPUSAVER_TIMER_DWORD,
- D101M_CPUSAVER_BUNDLE_DWORD,
- D101M_CPUSAVER_MIN_SIZE_DWORD },
- { D101S_RCVBUNDLE_UCODE,
- mac_82559_D101S,
- D101S_CPUSAVER_TIMER_DWORD,
- D101S_CPUSAVER_BUNDLE_DWORD,
- D101S_CPUSAVER_MIN_SIZE_DWORD },
- { D102_E_RCVBUNDLE_UCODE,
- mac_82551_F,
- D102_E_CPUSAVER_TIMER_DWORD,
- D102_E_CPUSAVER_BUNDLE_DWORD,
- D102_E_CPUSAVER_MIN_SIZE_DWORD },
- { D102_E_RCVBUNDLE_UCODE,
- mac_82551_10,
- D102_E_CPUSAVER_TIMER_DWORD,
- D102_E_CPUSAVER_BUNDLE_DWORD,
- D102_E_CPUSAVER_MIN_SIZE_DWORD },
- { {0}, 0, 0, 0, 0}
- }, *opts;
-/* *INDENT-ON* */
-
-/*************************************************************************
-* CPUSaver parameters
-*
-* All CPUSaver parameters are 16-bit literals that are part of a
-* "move immediate value" instruction. By changing the value of
-* the literal in the instruction before the code is loaded, the
-* driver can change the algorithm.
-*
-* INTDELAY - This loads the dead-man timer with its inital value.
-* When this timer expires the interrupt is asserted, and the
-* timer is reset each time a new packet is received. (see
-* BUNDLEMAX below to set the limit on number of chained packets)
-* The current default is 0x600 or 1536. Experiments show that
-* the value should probably stay within the 0x200 - 0x1000.
-*
-* BUNDLEMAX -
-* This sets the maximum number of frames that will be bundled. In
-* some situations, such as the TCP windowing algorithm, it may be
-* better to limit the growth of the bundle size than let it go as
-* high as it can, because that could cause too much added latency.
-* The default is six, because this is the number of packets in the
-* default TCP window size. A value of 1 would make CPUSaver indicate
-* an interrupt for every frame received. If you do not want to put
-* a limit on the bundle size, set this value to xFFFF.
-*
-* BUNDLESMALL -
-* This contains a bit-mask describing the minimum size frame that
-* will be bundled. The default masks the lower 7 bits, which means
-* that any frame less than 128 bytes in length will not be bundled,
-* but will instead immediately generate an interrupt. This does
-* not affect the current bundle in any way. Any frame that is 128
-* bytes or large will be bundled normally. This feature is meant
-* to provide immediate indication of ACK frames in a TCP environment.
-* Customers were seeing poor performance when a machine with CPUSaver
-* enabled was sending but not receiving. The delay introduced when
-* the ACKs were received was enough to reduce total throughput, because
-* the sender would sit idle until the ACK was finally seen.
-*
-* The current default is 0xFF80, which masks out the lower 7 bits.
-* This means that any frame which is x7F (127) bytes or smaller
-* will cause an immediate interrupt. Because this value must be a
-* bit mask, there are only a few valid values that can be used. To
-* turn this feature off, the driver can write the value xFFFF to the
-* lower word of this instruction (in the same way that the other
-* parameters are used). Likewise, a value of 0xF800 (2047) would
-* cause an interrupt to be generated for every frame, because all
-* standard Ethernet frames are <= 2047 bytes in length.
-*************************************************************************/
-
-/* if you wish to disable the ucode functionality, while maintaining the
- * workarounds it provides, set the following defines to:
- * BUNDLESMALL 0
- * BUNDLEMAX 1
- * INTDELAY 1
- */
-#define BUNDLESMALL 1
-#define BUNDLEMAX (u16)6
-#define INTDELAY (u16)1536 /* 0x600 */
-
- /* do not load u-code for ICH devices */
- if (nic->flags & ich)
- goto noloaducode;
-
- /* Search for ucode match against h/w rev_id */
- for (opts = ucode_opts; opts->mac; opts++) {
- int i;
- u32 *ucode = opts->ucode;
- if (nic->mac != opts->mac)
- continue;
-
- /* Insert user-tunable settings */
- ucode[opts->timer_dword] &= 0xFFFF0000;
- ucode[opts->timer_dword] |= INTDELAY;
- ucode[opts->bundle_dword] &= 0xFFFF0000;
- ucode[opts->bundle_dword] |= BUNDLEMAX;
- ucode[opts->min_size_dword] &= 0xFFFF0000;
- ucode[opts->min_size_dword] |= (BUNDLESMALL) ? 0xFFFF : 0xFF80;
-
- for (i = 0; i < UCODE_SIZE; i++)
- cb->u.ucode[i] = cpu_to_le32(ucode[i]);
- cb->command = cpu_to_le16(cb_ucode | cb_el);
- return;
- }
-
-noloaducode:
- cb->command = cpu_to_le16(cb_nop | cb_el);
-}
-
-static inline int e100_exec_cb_wait(struct nic *nic, struct sk_buff *skb,
- void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
-{
- int err = 0, counter = 50;
- struct cb *cb = nic->cb_to_clean;
-
- if ((err = e100_exec_cb(nic, NULL, e100_setup_ucode)))
- DPRINTK(PROBE,ERR, "ucode cmd failed with error %d\n", err);
-
- /* must restart cuc */
- nic->cuc_cmd = cuc_start;
-
- /* wait for completion */
- e100_write_flush(nic);
- udelay(10);
-
- /* wait for possibly (ouch) 500ms */
- while (!(cb->status & cpu_to_le16(cb_complete))) {
- msleep(10);
- if (!--counter) break;
- }
-
- /* ack any interupts, something could have been set */
- writeb(~0, &nic->csr->scb.stat_ack);
-
- /* if the command failed, or is not OK, notify and return */
- if (!counter || !(cb->status & cpu_to_le16(cb_ok))) {
- DPRINTK(PROBE,ERR, "ucode load failed\n");
- err = -EPERM;
- }
-
- return err;
-}
-
-static void e100_setup_iaaddr(struct nic *nic, struct cb *cb,
- struct sk_buff *skb)
-{
- cb->command = cpu_to_le16(cb_iaaddr);
- memcpy(cb->u.iaaddr, nic->netdev->dev_addr, ETH_ALEN);
-}
-
-static void e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- cb->command = cpu_to_le16(cb_dump);
- cb->u.dump_buffer_addr = cpu_to_le32(nic->dma_addr +
- offsetof(struct mem, dump_buf));
-}
-
-#define NCONFIG_AUTO_SWITCH 0x0080
-#define MII_NSC_CONG MII_RESV1
-#define NSC_CONG_ENABLE 0x0100
-#define NSC_CONG_TXREADY 0x0400
-#define ADVERTISE_FC_SUPPORTED 0x0400
-static int e100_phy_init(struct nic *nic)
-{
- struct net_device *netdev = nic->netdev;
- u32 addr;
- u16 bmcr, stat, id_lo, id_hi, cong;
-
- /* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
- for(addr = 0; addr < 32; addr++) {
- nic->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
- bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR);
- stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
- stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
- if(!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
- break;
- }
- DPRINTK(HW, DEBUG, "phy_addr = %d\n", nic->mii.phy_id);
- if(addr == 32)
- return -EAGAIN;
-
- /* Selected the phy and isolate the rest */
- for(addr = 0; addr < 32; addr++) {
- if(addr != nic->mii.phy_id) {
- mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE);
- } else {
- bmcr = mdio_read(netdev, addr, MII_BMCR);
- mdio_write(netdev, addr, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
- }
- }
-
- /* Get phy ID */
- id_lo = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID1);
- id_hi = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID2);
- nic->phy = (u32)id_hi << 16 | (u32)id_lo;
- DPRINTK(HW, DEBUG, "phy ID = 0x%08X\n", nic->phy);
-
- /* Handle National tx phys */
-#define NCS_PHY_MODEL_MASK 0xFFF0FFFF
- if((nic->phy & NCS_PHY_MODEL_MASK) == phy_nsc_tx) {
- /* Disable congestion control */
- cong = mdio_read(netdev, nic->mii.phy_id, MII_NSC_CONG);
- cong |= NSC_CONG_TXREADY;
- cong &= ~NSC_CONG_ENABLE;
- mdio_write(netdev, nic->mii.phy_id, MII_NSC_CONG, cong);
- }
-
- if((nic->mac >= mac_82550_D102) || ((nic->flags & ich) &&
- (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000))) {
- /* enable/disable MDI/MDI-X auto-switching.
- MDI/MDI-X auto-switching is disabled for 82551ER/QM chips */
- if((nic->mac == mac_82551_E) || (nic->mac == mac_82551_F) ||
- (nic->mac == mac_82551_10) || (nic->mii.force_media) ||
- !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))
- mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, 0);
- else
- mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, NCONFIG_AUTO_SWITCH);
- }
-
- return 0;
-}
-
-static int e100_hw_init(struct nic *nic)
-{
- int err;
-
- e100_hw_reset(nic);
-
- DPRINTK(HW, ERR, "e100_hw_init\n");
- if(!in_interrupt() && (err = e100_self_test(nic)))
- return err;
-
- if((err = e100_phy_init(nic)))
- return err;
- if((err = e100_exec_cmd(nic, cuc_load_base, 0)))
- return err;
- if((err = e100_exec_cmd(nic, ruc_load_base, 0)))
- return err;
- if ((err = e100_exec_cb_wait(nic, NULL, e100_setup_ucode)))
- return err;
- if((err = e100_exec_cb(nic, NULL, e100_configure)))
- return err;
- if((err = e100_exec_cb(nic, NULL, e100_setup_iaaddr)))
- return err;
- if((err = e100_exec_cmd(nic, cuc_dump_addr,
- nic->dma_addr + offsetof(struct mem, stats))))
- return err;
- if((err = e100_exec_cmd(nic, cuc_dump_reset, 0)))
- return err;
-
- e100_disable_irq(nic);
-
- return 0;
-}
-
-static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- struct net_device *netdev = nic->netdev;
- struct dev_mc_list *list = netdev->mc_list;
- u16 i, count = min(netdev->mc_count, E100_MAX_MULTICAST_ADDRS);
-
- cb->command = cpu_to_le16(cb_multi);
- cb->u.multi.count = cpu_to_le16(count * ETH_ALEN);
- for(i = 0; list && i < count; i++, list = list->next)
- memcpy(&cb->u.multi.addr[i*ETH_ALEN], &list->dmi_addr,
- ETH_ALEN);
-}
-
-static void e100_set_multicast_list(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- DPRINTK(HW, DEBUG, "mc_count=%d, flags=0x%04X\n",
- netdev->mc_count, netdev->flags);
-
- if(netdev->flags & IFF_PROMISC)
- nic->flags |= promiscuous;
- else
- nic->flags &= ~promiscuous;
-
- if(netdev->flags & IFF_ALLMULTI ||
- netdev->mc_count > E100_MAX_MULTICAST_ADDRS)
- nic->flags |= multicast_all;
- else
- nic->flags &= ~multicast_all;
-
- e100_exec_cb(nic, NULL, e100_configure);
- e100_exec_cb(nic, NULL, e100_multi);
-}
-
-static void e100_update_stats(struct nic *nic)
-{
- struct net_device_stats *ns = &nic->net_stats;
- struct stats *s = &nic->mem->stats;
- u32 *complete = (nic->mac < mac_82558_D101_A4) ? &s->fc_xmt_pause :
- (nic->mac < mac_82559_D101M) ? (u32 *)&s->xmt_tco_frames :
- &s->complete;
-
- /* Device's stats reporting may take several microseconds to
- * complete, so where always waiting for results of the
- * previous command. */
-
- if(*complete == le32_to_cpu(cuc_dump_reset_complete)) {
- *complete = 0;
- nic->tx_frames = le32_to_cpu(s->tx_good_frames);
- nic->tx_collisions = le32_to_cpu(s->tx_total_collisions);
- ns->tx_aborted_errors += le32_to_cpu(s->tx_max_collisions);
- ns->tx_window_errors += le32_to_cpu(s->tx_late_collisions);
- ns->tx_carrier_errors += le32_to_cpu(s->tx_lost_crs);
- ns->tx_fifo_errors += le32_to_cpu(s->tx_underruns);
- ns->collisions += nic->tx_collisions;
- ns->tx_errors += le32_to_cpu(s->tx_max_collisions) +
- le32_to_cpu(s->tx_lost_crs);
- ns->rx_length_errors += le32_to_cpu(s->rx_short_frame_errors) +
- nic->rx_over_length_errors;
- ns->rx_crc_errors += le32_to_cpu(s->rx_crc_errors);
- ns->rx_frame_errors += le32_to_cpu(s->rx_alignment_errors);
- ns->rx_over_errors += le32_to_cpu(s->rx_overrun_errors);
- ns->rx_fifo_errors += le32_to_cpu(s->rx_overrun_errors);
- ns->rx_missed_errors += le32_to_cpu(s->rx_resource_errors);
- ns->rx_errors += le32_to_cpu(s->rx_crc_errors) +
- le32_to_cpu(s->rx_alignment_errors) +
- le32_to_cpu(s->rx_short_frame_errors) +
- le32_to_cpu(s->rx_cdt_errors);
- nic->tx_deferred += le32_to_cpu(s->tx_deferred);
- nic->tx_single_collisions +=
- le32_to_cpu(s->tx_single_collisions);
- nic->tx_multiple_collisions +=
- le32_to_cpu(s->tx_multiple_collisions);
- if(nic->mac >= mac_82558_D101_A4) {
- nic->tx_fc_pause += le32_to_cpu(s->fc_xmt_pause);
- nic->rx_fc_pause += le32_to_cpu(s->fc_rcv_pause);
- nic->rx_fc_unsupported +=
- le32_to_cpu(s->fc_rcv_unsupported);
- if(nic->mac >= mac_82559_D101M) {
- nic->tx_tco_frames +=
- le16_to_cpu(s->xmt_tco_frames);
- nic->rx_tco_frames +=
- le16_to_cpu(s->rcv_tco_frames);
- }
- }
- }
-
-
- if(e100_exec_cmd(nic, cuc_dump_reset, 0))
- DPRINTK(TX_ERR, DEBUG, "exec cuc_dump_reset failed\n");
-}
-
-static void e100_adjust_adaptive_ifs(struct nic *nic, int speed, int duplex)
-{
- /* Adjust inter-frame-spacing (IFS) between two transmits if
- * we're getting collisions on a half-duplex connection. */
-
- if(duplex == DUPLEX_HALF) {
- u32 prev = nic->adaptive_ifs;
- u32 min_frames = (speed == SPEED_100) ? 1000 : 100;
-
- if((nic->tx_frames / 32 < nic->tx_collisions) &&
- (nic->tx_frames > min_frames)) {
- if(nic->adaptive_ifs < 60)
- nic->adaptive_ifs += 5;
- } else if (nic->tx_frames < min_frames) {
- if(nic->adaptive_ifs >= 5)
- nic->adaptive_ifs -= 5;
- }
- if(nic->adaptive_ifs != prev)
- e100_exec_cb(nic, NULL, e100_configure);
- }
-}
-
-static void e100_watchdog(unsigned long data)
-{
- struct nic *nic = (struct nic *)data;
- struct ethtool_cmd cmd;
-
- DPRINTK(TIMER, DEBUG, "right now = %ld\n", jiffies);
-
- /* mii library handles link maintenance tasks */
-
- if (nic->ethercat) {
- ecdev_set_link(nic->ecdev, mii_link_ok(&nic->mii) ? 1 : 0);
- goto finish;
- }
-
- mii_ethtool_gset(&nic->mii, &cmd);
-
- if(mii_link_ok(&nic->mii) && !netif_carrier_ok(nic->netdev)) {
- DPRINTK(LINK, INFO, "link up, %sMbps, %s-duplex\n",
- cmd.speed == SPEED_100 ? "100" : "10",
- cmd.duplex == DUPLEX_FULL ? "full" : "half");
- } else if(!mii_link_ok(&nic->mii) && netif_carrier_ok(nic->netdev)) {
- DPRINTK(LINK, INFO, "link down\n");
- }
-
- mii_check_link(&nic->mii);
-
- /* Software generated interrupt to recover from (rare) Rx
- * allocation failure.
- * Unfortunately have to use a spinlock to not re-enable interrupts
- * accidentally, due to hardware that shares a register between the
- * interrupt mask bit and the SW Interrupt generation bit */
- spin_lock_irq(&nic->cmd_lock);
- writeb(readb(&nic->csr->scb.cmd_hi) | irq_sw_gen,&nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irq(&nic->cmd_lock);
-
- e100_update_stats(nic);
- e100_adjust_adaptive_ifs(nic, cmd.speed, cmd.duplex);
-
- if(nic->mac <= mac_82557_D100_C)
- /* Issue a multicast command to workaround a 557 lock up */
- e100_set_multicast_list(nic->netdev);
-
- if(nic->flags & ich && cmd.speed==SPEED_10 && cmd.duplex==DUPLEX_HALF)
- /* Need SW workaround for ICH[x] 10Mbps/half duplex Tx hang. */
- nic->flags |= ich_10h_workaround;
- else
- nic->flags &= ~ich_10h_workaround;
-
-finish:
- mod_timer(&nic->watchdog, jiffies + E100_WATCHDOG_PERIOD);
-}
-
-static void e100_xmit_prepare(struct nic *nic, struct cb *cb,
- struct sk_buff *skb)
-{
- cb->command = nic->tx_command;
- /* interrupt every 16 packets regardless of delay */
- if((nic->cbs_avail & ~15) == nic->cbs_avail)
- cb->command |= cpu_to_le16(cb_i);
- cb->u.tcb.tbd_array = cb->dma_addr + offsetof(struct cb, u.tcb.tbd);
- cb->u.tcb.tcb_byte_count = 0;
- cb->u.tcb.threshold = nic->tx_threshold;
- cb->u.tcb.tbd_count = 1;
- cb->u.tcb.tbd.buf_addr = cpu_to_le32(pci_map_single(nic->pdev,
- skb->data, skb->len, PCI_DMA_TODEVICE));
- /* check for mapping failure? */
- cb->u.tcb.tbd.size = cpu_to_le16(skb->len);
-}
-
-static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- int err;
-
- if(nic->flags & ich_10h_workaround) {
- /* SW workaround for ICH[x] 10Mbps/half duplex Tx hang.
- Issue a NOP command followed by a 1us delay before
- issuing the Tx command. */
- if(e100_exec_cmd(nic, cuc_nop, 0))
- DPRINTK(TX_ERR, DEBUG, "exec cuc_nop failed\n");
- udelay(1);
- }
-
- err = e100_exec_cb(nic, skb, e100_xmit_prepare);
-
- switch(err) {
- case -ENOSPC:
- /* We queued the skb, but now we're out of space. */
- DPRINTK(TX_ERR, DEBUG, "No space for CB\n");
- if (!nic->ethercat)
- netif_stop_queue(netdev);
- break;
- case -ENOMEM:
- /* This is a hard error - log it. */
- DPRINTK(TX_ERR, DEBUG, "Out of Tx resources, returning skb\n");
- if (!nic->ethercat)
- netif_stop_queue(netdev);
- return 1;
- }
-
- netdev->trans_start = jiffies;
- return 0;
-}
-
-static int e100_tx_clean(struct nic *nic)
-{
- struct cb *cb;
- int tx_cleaned = 0;
-
- printk(KERN_DEBUG DRV_NAME " tx_clean(%X)\n", (unsigned) nic); // FIXME
-
- if (!nic->cb_to_clean) { // FIXME
- printk(KERN_WARNING DRV_NAME "cb_to_clean is NULL!\n");
- return 0;
- }
-
- if (!nic->ethercat)
- spin_lock(&nic->cb_lock);
-
- DPRINTK(TX_DONE, DEBUG, "cb->status = 0x%04X\n",
- nic->cb_to_clean->status);
-
- /* Clean CBs marked complete */
- for(cb = nic->cb_to_clean;
- cb->status & cpu_to_le16(cb_complete);
- cb = nic->cb_to_clean = cb->next) {
- if(likely(cb->skb != NULL)) {
- nic->net_stats.tx_packets++;
- nic->net_stats.tx_bytes += cb->skb->len;
-
- pci_unmap_single(nic->pdev,
- le32_to_cpu(cb->u.tcb.tbd.buf_addr),
- le16_to_cpu(cb->u.tcb.tbd.size),
- PCI_DMA_TODEVICE);
- if (!nic->ethercat)
- dev_kfree_skb_any(cb->skb);
- cb->skb = NULL;
- tx_cleaned = 1;
- }
- cb->status = 0;
- nic->cbs_avail++;
- }
-
- if (!nic->ethercat) {
- spin_unlock(&nic->cb_lock);
-
- /* Recover from running out of Tx resources in xmit_frame */
- if(unlikely(tx_cleaned && netif_queue_stopped(nic->netdev)))
- netif_wake_queue(nic->netdev);
- }
-
- return tx_cleaned;
-}
-
-static void e100_clean_cbs(struct nic *nic)
-{
- if(nic->cbs) {
- while(nic->cbs_avail != nic->params.cbs.count) {
- struct cb *cb = nic->cb_to_clean;
- if(cb->skb) {
- pci_unmap_single(nic->pdev,
- le32_to_cpu(cb->u.tcb.tbd.buf_addr),
- le16_to_cpu(cb->u.tcb.tbd.size),
- PCI_DMA_TODEVICE);
- dev_kfree_skb(cb->skb);
- }
- nic->cb_to_clean = nic->cb_to_clean->next;
- nic->cbs_avail++;
- }
- pci_free_consistent(nic->pdev,
- sizeof(struct cb) * nic->params.cbs.count,
- nic->cbs, nic->cbs_dma_addr);
- nic->cbs = NULL;
- nic->cbs_avail = 0;
- }
- nic->cuc_cmd = cuc_start;
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean =
- nic->cbs;
-}
-
-static int e100_alloc_cbs(struct nic *nic)
-{
- struct cb *cb;
- unsigned int i, count = nic->params.cbs.count;
-
- nic->cuc_cmd = cuc_start;
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = NULL;
- nic->cbs_avail = 0;
-
- nic->cbs = pci_alloc_consistent(nic->pdev,
- sizeof(struct cb) * count, &nic->cbs_dma_addr);
- if(!nic->cbs)
- return -ENOMEM;
-
- for(cb = nic->cbs, i = 0; i < count; cb++, i++) {
- cb->next = (i + 1 < count) ? cb + 1 : nic->cbs;
- cb->prev = (i == 0) ? nic->cbs + count - 1 : cb - 1;
-
- cb->dma_addr = nic->cbs_dma_addr + i * sizeof(struct cb);
- cb->link = cpu_to_le32(nic->cbs_dma_addr +
- ((i+1) % count) * sizeof(struct cb));
- cb->skb = NULL;
- }
-
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = nic->cbs;
- nic->cbs_avail = count;
-
- return 0;
-}
-
-static inline void e100_start_receiver(struct nic *nic, struct rx *rx)
-{
- if(!nic->rxs) return;
- if(RU_SUSPENDED != nic->ru_running) return;
-
- /* handle init time starts */
- if(!rx) rx = nic->rxs;
-
- /* (Re)start RU if suspended or idle and RFA is non-NULL */
- if(rx->skb) {
- e100_exec_cmd(nic, ruc_start, rx->dma_addr);
- nic->ru_running = RU_RUNNING;
- }
-}
-
-#define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN)
-static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
-{
- if(!(rx->skb = dev_alloc_skb(RFD_BUF_LEN + NET_IP_ALIGN)))
- return -ENOMEM;
-
- /* Align, init, and map the RFD. */
- rx->skb->dev = nic->netdev;
- skb_reserve(rx->skb, NET_IP_ALIGN);
- memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
- rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
- RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
-
- if(pci_dma_mapping_error(rx->dma_addr)) {
- dev_kfree_skb_any(rx->skb);
- rx->skb = NULL;
- rx->dma_addr = 0;
- return -ENOMEM;
- }
-
- /* Link the RFD to end of RFA by linking previous RFD to
- * this one, and clearing EL bit of previous. */
- if(rx->prev->skb) {
- struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data;
- put_unaligned(cpu_to_le32(rx->dma_addr),
- (u32 *)&prev_rfd->link);
- wmb();
- prev_rfd->command &= ~cpu_to_le16(cb_el);
- pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr,
- sizeof(struct rfd), PCI_DMA_TODEVICE);
- }
-
- return 0;
-}
-
-static int e100_rx_indicate(struct nic *nic, struct rx *rx,
- unsigned int *work_done, unsigned int work_to_do)
-{
- struct sk_buff *skb = rx->skb;
- struct rfd *rfd = (struct rfd *)skb->data;
- u16 rfd_status, actual_size;
-
- if(unlikely(work_done && *work_done >= work_to_do))
- return -EAGAIN;
-
- /* Need to sync before taking a peek at cb_complete bit */
- pci_dma_sync_single_for_cpu(nic->pdev, rx->dma_addr,
- sizeof(struct rfd), PCI_DMA_FROMDEVICE);
- rfd_status = le16_to_cpu(rfd->status);
-
- DPRINTK(RX_STATUS, DEBUG, "status=0x%04X\n", rfd_status);
-
- /* If data isn't ready, nothing to indicate */
- if(unlikely(!(rfd_status & cb_complete)))
- return -ENODATA;
-
- /* Get actual data size */
- actual_size = le16_to_cpu(rfd->actual_size) & 0x3FFF;
- if(unlikely(actual_size > RFD_BUF_LEN - sizeof(struct rfd)))
- actual_size = RFD_BUF_LEN - sizeof(struct rfd);
-
- /* Get data */
- pci_unmap_single(nic->pdev, rx->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
-
- /* this allows for a fast restart without re-enabling interrupts */
- if(le16_to_cpu(rfd->command) & cb_el)
- nic->ru_running = RU_SUSPENDED;
-
- /* Pull off the RFD and put the actual data (minus eth hdr) */
- skb_reserve(skb, sizeof(struct rfd));
- skb_put(skb, actual_size);
- skb->protocol = eth_type_trans(skb, nic->netdev);
-
- if(unlikely(!(rfd_status & cb_ok))) {
- /* Don't indicate if hardware indicates errors */
- if (!nic->ethercat)
- dev_kfree_skb_any(skb);
- } else if(actual_size > ETH_DATA_LEN + VLAN_ETH_HLEN) {
- /* Don't indicate oversized frames */
- nic->rx_over_length_errors++;
- if (!nic->ethercat)
- dev_kfree_skb_any(skb);
- } else {
- nic->net_stats.rx_packets++;
- nic->net_stats.rx_bytes += actual_size;
- nic->netdev->last_rx = jiffies;
- if (!nic->ethercat)
- netif_receive_skb(skb);
- else {
- //ecdev_receive(e100_ec_dev, &rx_ring[ring_offset + 4], pkt_size);
- }
- if(work_done)
- (*work_done)++;
- }
-
- rx->skb = NULL;
-
- return 0;
-}
-
-static void e100_rx_clean(struct nic *nic, unsigned int *work_done,
- unsigned int work_to_do)
-{
- struct rx *rx;
- int restart_required = 0;
- struct rx *rx_to_start = NULL;
-
- /* are we already rnr? then pay attention!!! this ensures that
- * the state machine progression never allows a start with a
- * partially cleaned list, avoiding a race between hardware
- * and rx_to_clean when in NAPI mode */
- if(RU_SUSPENDED == nic->ru_running)
- restart_required = 1;
-
- /* Indicate newly arrived packets */
- for(rx = nic->rx_to_clean; rx->skb; rx = nic->rx_to_clean = rx->next) {
- int err = e100_rx_indicate(nic, rx, work_done, work_to_do);
- if(-EAGAIN == err) {
- /* hit quota so have more work to do, restart once
- * cleanup is complete */
- restart_required = 0;
- break;
- } else if(-ENODATA == err)
- break; /* No more to clean */
- }
-
- /* save our starting point as the place we'll restart the receiver */
- if(restart_required)
- rx_to_start = nic->rx_to_clean;
-
- /* Alloc new skbs to refill list */
- for(rx = nic->rx_to_use; !rx->skb; rx = nic->rx_to_use = rx->next) {
- if(unlikely(e100_rx_alloc_skb(nic, rx)))
- break; /* Better luck next time (see watchdog) */
- }
-
- if(restart_required) {
- // ack the rnr?
- writeb(stat_ack_rnr, &nic->csr->scb.stat_ack);
- e100_start_receiver(nic, rx_to_start);
- if(work_done)
- (*work_done)++;
- }
-}
-
-static void e100_rx_clean_list(struct nic *nic)
-{
- struct rx *rx;
- unsigned int i, count = nic->params.rfds.count;
-
- nic->ru_running = RU_UNINITIALIZED;
-
- if(nic->rxs) {
- for(rx = nic->rxs, i = 0; i < count; rx++, i++) {
- if(rx->skb) {
- pci_unmap_single(nic->pdev, rx->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(rx->skb); // FIXME
- }
- }
- kfree(nic->rxs);
- nic->rxs = NULL;
- }
-
- nic->rx_to_use = nic->rx_to_clean = NULL;
-}
-
-static int e100_rx_alloc_list(struct nic *nic)
-{
- struct rx *rx;
- unsigned int i, count = nic->params.rfds.count;
-
- nic->rx_to_use = nic->rx_to_clean = NULL;
- nic->ru_running = RU_UNINITIALIZED;
-
- if(!(nic->rxs = kmalloc(sizeof(struct rx) * count, GFP_ATOMIC)))
- return -ENOMEM;
- memset(nic->rxs, 0, sizeof(struct rx) * count);
-
- for(rx = nic->rxs, i = 0; i < count; rx++, i++) {
- rx->next = (i + 1 < count) ? rx + 1 : nic->rxs;
- rx->prev = (i == 0) ? nic->rxs + count - 1 : rx - 1;
- if(e100_rx_alloc_skb(nic, rx)) {
- e100_rx_clean_list(nic);
- return -ENOMEM;
- }
- }
-
- nic->rx_to_use = nic->rx_to_clean = nic->rxs;
- nic->ru_running = RU_SUSPENDED;
-
- return 0;
-}
-
-static irqreturn_t e100_intr(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *netdev = dev_id;
- struct nic *nic = netdev_priv(netdev);
- u8 stat_ack = readb(&nic->csr->scb.stat_ack);
-
- DPRINTK(INTR, DEBUG, "stat_ack = 0x%02X\n", stat_ack);
-
- if(stat_ack == stat_ack_not_ours || /* Not our interrupt */
- stat_ack == stat_ack_not_present) /* Hardware is ejected */
- return IRQ_NONE;
-
- /* Ack interrupt(s) */
- writeb(stat_ack, &nic->csr->scb.stat_ack);
-
- /* We hit Receive No Resource (RNR); restart RU after cleaning */
- if(stat_ack & stat_ack_rnr)
- nic->ru_running = RU_SUSPENDED;
-
- if(!nic->ethercat && likely(netif_rx_schedule_prep(netdev))) {
- e100_disable_irq(nic);
- __netif_rx_schedule(netdev);
- }
-
- return IRQ_HANDLED;
-}
-
-void e100_ec_poll(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- static unsigned int cleaned = 0;
-
- cleaned += e100_tx_clean(nic);
-
- if (cleaned >= 1000) {
- printk(KERN_INFO DRV_NAME " %u frames sent.\n", cleaned);
- cleaned = 0;
- }
-}
-
-static int e100_poll(struct net_device *netdev, int *budget)
-{
- struct nic *nic = netdev_priv(netdev);
- unsigned int work_to_do = min(netdev->quota, *budget);
- unsigned int work_done = 0;
- int tx_cleaned;
-
- e100_rx_clean(nic, &work_done, work_to_do);
- tx_cleaned = e100_tx_clean(nic);
-
- /* If no Rx and Tx cleanup work was done, exit polling mode. */
- if(!nic->ethercat &&
- ((!tx_cleaned && (work_done == 0)) || !netif_running(netdev))) {
- netif_rx_complete(netdev);
- e100_enable_irq(nic);
- return 0;
- }
-
- *budget -= work_done;
- netdev->quota -= work_done;
-
- return 1;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void e100_netpoll(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if (nic->ethercat)
- return;
-
- e100_disable_irq(nic);
- e100_intr(nic->pdev->irq, netdev, NULL);
- e100_tx_clean(nic);
- e100_enable_irq(nic);
-}
-#endif
-
-static struct net_device_stats *e100_get_stats(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return &nic->net_stats;
-}
-
-static int e100_set_mac_address(struct net_device *netdev, void *p)
-{
- struct nic *nic = netdev_priv(netdev);
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- e100_exec_cb(nic, NULL, e100_setup_iaaddr);
-
- return 0;
-}
-
-static int e100_change_mtu(struct net_device *netdev, int new_mtu)
-{
- if(new_mtu < ETH_ZLEN || new_mtu > ETH_DATA_LEN)
- return -EINVAL;
- netdev->mtu = new_mtu;
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int e100_asf(struct nic *nic)
-{
- /* ASF can be enabled from eeprom */
- return((nic->pdev->device >= 0x1050) && (nic->pdev->device <= 0x1057) &&
- (nic->eeprom[eeprom_config_asf] & eeprom_asf) &&
- !(nic->eeprom[eeprom_config_asf] & eeprom_gcl) &&
- ((nic->eeprom[eeprom_smbus_addr] & 0xFF) != 0xFE));
-}
-#endif
-
-static int e100_up(struct nic *nic)
-{
- int err;
-
- if((err = e100_rx_alloc_list(nic)))
- return err;
- if((err = e100_alloc_cbs(nic)))
- goto err_rx_clean_list;
- if((err = e100_hw_init(nic)))
- goto err_clean_cbs;
- if (!nic->ethercat) {
- e100_set_multicast_list(nic->netdev);
- e100_start_receiver(nic, NULL); // FIXME
- }
- mod_timer(&nic->watchdog, jiffies);
- if (!nic->ethercat) {
- if((err = request_irq(nic->pdev->irq, e100_intr, IRQF_SHARED,
- nic->netdev->name, nic->netdev)))
- goto err_no_irq;
- netif_wake_queue(nic->netdev);
- netif_poll_enable(nic->netdev);
- /* enable ints _after_ enabling poll, preventing a race between
- * disable ints+schedule */
- e100_enable_irq(nic);
- }
- return 0;
-
-err_no_irq:
- del_timer_sync(&nic->watchdog);
-err_clean_cbs:
- e100_clean_cbs(nic);
-err_rx_clean_list:
- e100_rx_clean_list(nic);
- return err;
-}
-
-static void e100_down(struct nic *nic)
-{
- if (!nic->ethercat) {
- /* wait here for poll to complete */
- netif_poll_disable(nic->netdev);
- netif_stop_queue(nic->netdev);
- }
- e100_hw_reset(nic);
- if (!nic->ethercat)
- free_irq(nic->pdev->irq, nic->netdev);
- del_timer_sync(&nic->watchdog);
- if (!nic->ethercat)
- netif_carrier_off(nic->netdev);
- e100_clean_cbs(nic);
- e100_rx_clean_list(nic);
-}
-
-static void e100_tx_timeout(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- /* Reset outside of interrupt context, to avoid request_irq
- * in interrupt context */
- schedule_work(&nic->tx_timeout_task); // FIXME
-}
-
-static void e100_tx_timeout_task(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n",
- readb(&nic->csr->scb.status));
- e100_down(netdev_priv(netdev));
- e100_up(netdev_priv(netdev));
-}
-
-static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode)
-{
- int err;
- struct sk_buff *skb;
-
- /* Use driver resources to perform internal MAC or PHY
- * loopback test. A single packet is prepared and transmitted
- * in loopback mode, and the test passes if the received
- * packet compares byte-for-byte to the transmitted packet. */
-
- if((err = e100_rx_alloc_list(nic)))
- return err;
- if((err = e100_alloc_cbs(nic)))
- goto err_clean_rx;
-
- /* ICH PHY loopback is broken so do MAC loopback instead */
- if(nic->flags & ich && loopback_mode == lb_phy)
- loopback_mode = lb_mac;
-
- nic->loopback = loopback_mode;
- if((err = e100_hw_init(nic)))
- goto err_loopback_none;
-
- if(loopback_mode == lb_phy)
- mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR,
- BMCR_LOOPBACK);
-
- e100_start_receiver(nic, NULL);
-
- if(!(skb = dev_alloc_skb(ETH_DATA_LEN))) {
- err = -ENOMEM;
- goto err_loopback_none;
- }
- skb_put(skb, ETH_DATA_LEN);
- memset(skb->data, 0xFF, ETH_DATA_LEN);
- e100_xmit_frame(skb, nic->netdev);
-
- msleep(10);
-
- pci_dma_sync_single_for_cpu(nic->pdev, nic->rx_to_clean->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
-
- if(memcmp(nic->rx_to_clean->skb->data + sizeof(struct rfd),
- skb->data, ETH_DATA_LEN))
- err = -EAGAIN;
-
-err_loopback_none:
- mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR, 0);
- nic->loopback = lb_none;
- e100_clean_cbs(nic);
- e100_hw_reset(nic);
-err_clean_rx:
- e100_rx_clean_list(nic);
- return err;
-}
-
-#define MII_LED_CONTROL 0x1B
-static void e100_blink_led(unsigned long data)
-{
- struct nic *nic = (struct nic *)data;
- enum led_state {
- led_on = 0x01,
- led_off = 0x04,
- led_on_559 = 0x05,
- led_on_557 = 0x07,
- };
-
- nic->leds = (nic->leds & led_on) ? led_off :
- (nic->mac < mac_82559_D101M) ? led_on_557 : led_on_559;
- mdio_write(nic->netdev, nic->mii.phy_id, MII_LED_CONTROL, nic->leds);
- mod_timer(&nic->blink_timer, jiffies + HZ / 4);
-}
-
-static int e100_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_ethtool_gset(&nic->mii, cmd);
-}
-
-static int e100_set_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
-{
- struct nic *nic = netdev_priv(netdev);
- int err;
-
- mdio_write(netdev, nic->mii.phy_id, MII_BMCR, BMCR_RESET);
- err = mii_ethtool_sset(&nic->mii, cmd);
- e100_exec_cb(nic, NULL, e100_configure);
-
- return err;
-}
-
-static void e100_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *info)
-{
- struct nic *nic = netdev_priv(netdev);
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->fw_version, "N/A");
- strcpy(info->bus_info, pci_name(nic->pdev));
-}
-
-static int e100_get_regs_len(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-#define E100_PHY_REGS 0x1C
-#define E100_REGS_LEN 1 + E100_PHY_REGS + \
- sizeof(nic->mem->dump_buf) / sizeof(u32)
- return E100_REGS_LEN * sizeof(u32);
-}
-
-static void e100_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *p)
-{
- struct nic *nic = netdev_priv(netdev);
- u32 *buff = p;
- int i;
-
- regs->version = (1 << 24) | nic->rev_id;
- buff[0] = readb(&nic->csr->scb.cmd_hi) << 24 |
- readb(&nic->csr->scb.cmd_lo) << 16 |
- readw(&nic->csr->scb.status);
- for(i = E100_PHY_REGS; i >= 0; i--)
- buff[1 + E100_PHY_REGS - i] =
- mdio_read(netdev, nic->mii.phy_id, i);
- memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf));
- e100_exec_cb(nic, NULL, e100_dump);
- msleep(10);
- memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf,
- sizeof(nic->mem->dump_buf));
-}
-
-static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct nic *nic = netdev_priv(netdev);
- wol->supported = (nic->mac >= mac_82558_D101_A4) ? WAKE_MAGIC : 0;
- wol->wolopts = (nic->flags & wol_magic) ? WAKE_MAGIC : 0;
-}
-
-static int e100_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
- return -EOPNOTSUPP;
-
- if(wol->wolopts)
- nic->flags |= wol_magic;
- else
- nic->flags &= ~wol_magic;
-
- e100_exec_cb(nic, NULL, e100_configure);
-
- return 0;
-}
-
-static u32 e100_get_msglevel(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return nic->msg_enable;
-}
-
-static void e100_set_msglevel(struct net_device *netdev, u32 value)
-{
- struct nic *nic = netdev_priv(netdev);
- nic->msg_enable = value;
-}
-
-static int e100_nway_reset(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_nway_restart(&nic->mii);
-}
-
-static u32 e100_get_link(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_link_ok(&nic->mii);
-}
-
-static int e100_get_eeprom_len(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return nic->eeprom_wc << 1;
-}
-
-#define E100_EEPROM_MAGIC 0x1234
-static int e100_get_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct nic *nic = netdev_priv(netdev);
-
- eeprom->magic = E100_EEPROM_MAGIC;
- memcpy(bytes, &((u8 *)nic->eeprom)[eeprom->offset], eeprom->len);
-
- return 0;
-}
-
-static int e100_set_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(eeprom->magic != E100_EEPROM_MAGIC)
- return -EINVAL;
-
- memcpy(&((u8 *)nic->eeprom)[eeprom->offset], bytes, eeprom->len);
-
- return e100_eeprom_save(nic, eeprom->offset >> 1,
- (eeprom->len >> 1) + 1);
-}
-
-static void e100_get_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct nic *nic = netdev_priv(netdev);
- struct param_range *rfds = &nic->params.rfds;
- struct param_range *cbs = &nic->params.cbs;
-
- ring->rx_max_pending = rfds->max;
- ring->tx_max_pending = cbs->max;
- ring->rx_mini_max_pending = 0;
- ring->rx_jumbo_max_pending = 0;
- ring->rx_pending = rfds->count;
- ring->tx_pending = cbs->count;
- ring->rx_mini_pending = 0;
- ring->rx_jumbo_pending = 0;
-}
-
-static int e100_set_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct nic *nic = netdev_priv(netdev);
- struct param_range *rfds = &nic->params.rfds;
- struct param_range *cbs = &nic->params.cbs;
-
- if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
- return -EINVAL;
-
- if(netif_running(netdev))
- e100_down(nic);
- rfds->count = max(ring->rx_pending, rfds->min);
- rfds->count = min(rfds->count, rfds->max);
- cbs->count = max(ring->tx_pending, cbs->min);
- cbs->count = min(cbs->count, cbs->max);
- DPRINTK(DRV, INFO, "Ring Param settings: rx: %d, tx %d\n",
- rfds->count, cbs->count);
- if(netif_running(netdev))
- e100_up(nic);
-
- return 0;
-}
-
-static const char e100_gstrings_test[][ETH_GSTRING_LEN] = {
- "Link test (on/offline)",
- "Eeprom test (on/offline)",
- "Self test (offline)",
- "Mac loopback (offline)",
- "Phy loopback (offline)",
-};
-#define E100_TEST_LEN sizeof(e100_gstrings_test) / ETH_GSTRING_LEN
-
-static int e100_diag_test_count(struct net_device *netdev)
-{
- return E100_TEST_LEN;
-}
-
-static void e100_diag_test(struct net_device *netdev,
- struct ethtool_test *test, u64 *data)
-{
- struct ethtool_cmd cmd;
- struct nic *nic = netdev_priv(netdev);
- int i, err;
-
- memset(data, 0, E100_TEST_LEN * sizeof(u64));
- data[0] = !mii_link_ok(&nic->mii);
- data[1] = e100_eeprom_load(nic);
- if(test->flags & ETH_TEST_FL_OFFLINE) {
-
- /* save speed, duplex & autoneg settings */
- err = mii_ethtool_gset(&nic->mii, &cmd);
-
- if(netif_running(netdev))
- e100_down(nic);
- data[2] = e100_self_test(nic);
- data[3] = e100_loopback_test(nic, lb_mac);
- data[4] = e100_loopback_test(nic, lb_phy);
-
- /* restore speed, duplex & autoneg settings */
- err = mii_ethtool_sset(&nic->mii, &cmd);
-
- if(netif_running(netdev))
- e100_up(nic);
- }
- for(i = 0; i < E100_TEST_LEN; i++)
- test->flags |= data[i] ? ETH_TEST_FL_FAILED : 0;
-
- msleep_interruptible(4 * 1000);
-}
-
-static int e100_phys_id(struct net_device *netdev, u32 data)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
- data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
- mod_timer(&nic->blink_timer, jiffies);
- msleep_interruptible(data * 1000);
- del_timer_sync(&nic->blink_timer);
- mdio_write(netdev, nic->mii.phy_id, MII_LED_CONTROL, 0);
-
- return 0;
-}
-
-static const char e100_gstrings_stats[][ETH_GSTRING_LEN] = {
- "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
- "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
- "rx_length_errors", "rx_over_errors", "rx_crc_errors",
- "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
- "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
- "tx_heartbeat_errors", "tx_window_errors",
- /* device-specific stats */
- "tx_deferred", "tx_single_collisions", "tx_multi_collisions",
- "tx_flow_control_pause", "rx_flow_control_pause",
- "rx_flow_control_unsupported", "tx_tco_packets", "rx_tco_packets",
-};
-#define E100_NET_STATS_LEN 21
-#define E100_STATS_LEN sizeof(e100_gstrings_stats) / ETH_GSTRING_LEN
-
-static int e100_get_stats_count(struct net_device *netdev)
-{
- return E100_STATS_LEN;
-}
-
-static void e100_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct nic *nic = netdev_priv(netdev);
- int i;
-
- for(i = 0; i < E100_NET_STATS_LEN; i++)
- data[i] = ((unsigned long *)&nic->net_stats)[i];
-
- data[i++] = nic->tx_deferred;
- data[i++] = nic->tx_single_collisions;
- data[i++] = nic->tx_multiple_collisions;
- data[i++] = nic->tx_fc_pause;
- data[i++] = nic->rx_fc_pause;
- data[i++] = nic->rx_fc_unsupported;
- data[i++] = nic->tx_tco_frames;
- data[i++] = nic->rx_tco_frames;
-}
-
-static void e100_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
-{
- switch(stringset) {
- case ETH_SS_TEST:
- memcpy(data, *e100_gstrings_test, sizeof(e100_gstrings_test));
- break;
- case ETH_SS_STATS:
- memcpy(data, *e100_gstrings_stats, sizeof(e100_gstrings_stats));
- break;
- }
-}
-
-static struct ethtool_ops e100_ethtool_ops = {
- .get_settings = e100_get_settings,
- .set_settings = e100_set_settings,
- .get_drvinfo = e100_get_drvinfo,
- .get_regs_len = e100_get_regs_len,
- .get_regs = e100_get_regs,
- .get_wol = e100_get_wol,
- .set_wol = e100_set_wol,
- .get_msglevel = e100_get_msglevel,
- .set_msglevel = e100_set_msglevel,
- .nway_reset = e100_nway_reset,
- .get_link = e100_get_link,
- .get_eeprom_len = e100_get_eeprom_len,
- .get_eeprom = e100_get_eeprom,
- .set_eeprom = e100_set_eeprom,
- .get_ringparam = e100_get_ringparam,
- .set_ringparam = e100_set_ringparam,
- .self_test_count = e100_diag_test_count,
- .self_test = e100_diag_test,
- .get_strings = e100_get_strings,
- .phys_id = e100_phys_id,
- .get_stats_count = e100_get_stats_count,
- .get_ethtool_stats = e100_get_ethtool_stats,
- .get_perm_addr = ethtool_op_get_perm_addr,
-};
-
-static int e100_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- struct nic *nic = netdev_priv(netdev);
-
- return generic_mii_ioctl(&nic->mii, if_mii(ifr), cmd, NULL);
-}
-
-static int e100_alloc(struct nic *nic)
-{
- nic->mem = pci_alloc_consistent(nic->pdev, sizeof(struct mem),
- &nic->dma_addr);
- return nic->mem ? 0 : -ENOMEM;
-}
-
-static void e100_free(struct nic *nic)
-{
- if(nic->mem) {
- pci_free_consistent(nic->pdev, sizeof(struct mem),
- nic->mem, nic->dma_addr);
- nic->mem = NULL;
- }
-}
-
-static int e100_open(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- int err = 0;
-
- if (!nic->ethercat)
- netif_carrier_off(netdev);
- if((err = e100_up(nic)))
- DPRINTK(IFUP, ERR, "Cannot open interface, aborting.\n");
- return err;
-}
-
-static int e100_close(struct net_device *netdev)
-{
- e100_down(netdev_priv(netdev));
- return 0;
-}
-
-static int __devinit e100_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *netdev;
- struct nic *nic;
- int err;
-
- if(!(netdev = alloc_etherdev(sizeof(struct nic)))) {
- if(((1 << debug) - 1) & NETIF_MSG_PROBE)
- printk(KERN_ERR PFX "Etherdev alloc failed, abort.\n");
- return -ENOMEM;
- }
-
- netdev->open = e100_open;
- netdev->stop = e100_close;
- netdev->hard_start_xmit = e100_xmit_frame;
- netdev->get_stats = e100_get_stats;
- netdev->set_multicast_list = e100_set_multicast_list;
- netdev->set_mac_address = e100_set_mac_address;
- netdev->change_mtu = e100_change_mtu;
- netdev->do_ioctl = e100_do_ioctl;
- SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops);
- netdev->tx_timeout = e100_tx_timeout;
- netdev->watchdog_timeo = E100_WATCHDOG_PERIOD;
- netdev->poll = e100_poll;
- netdev->weight = E100_NAPI_WEIGHT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- netdev->poll_controller = e100_netpoll;
-#endif
- strcpy(netdev->name, pci_name(pdev));
-
- nic = netdev_priv(netdev);
- nic->netdev = netdev;
- nic->pdev = pdev;
- nic->msg_enable = (1 << debug) - 1;
- pci_set_drvdata(pdev, netdev);
-
- if (e100_device_index++ == ec_device_index) {
- nic->ethercat = 1;
- e100_ec_netdev = netdev;
- }
- else {
- nic->ethercat = 0;
- }
- nic->ecdev = NULL;
-
- if((err = pci_enable_device(pdev))) {
- DPRINTK(PROBE, ERR, "Cannot enable PCI device, aborting.\n");
- goto err_out_free_dev;
- }
-
- if(!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- DPRINTK(PROBE, ERR, "Cannot find proper PCI device "
- "base address, aborting.\n");
- err = -ENODEV;
- goto err_out_disable_pdev;
- }
-
- if((err = pci_request_regions(pdev, DRV_NAME))) {
- DPRINTK(PROBE, ERR, "Cannot obtain PCI resources, aborting.\n");
- goto err_out_disable_pdev;
- }
-
- if((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
- DPRINTK(PROBE, ERR, "No usable DMA configuration, aborting.\n");
- goto err_out_free_res;
- }
-
- SET_MODULE_OWNER(netdev);
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- nic->csr = ioremap(pci_resource_start(pdev, 0), sizeof(struct csr));
- if(!nic->csr) {
- DPRINTK(PROBE, ERR, "Cannot map device registers, aborting.\n");
- err = -ENOMEM;
- goto err_out_free_res;
- }
-
- if(ent->driver_data)
- nic->flags |= ich;
- else
- nic->flags &= ~ich;
-
- e100_get_defaults(nic);
-
- /* locks must be initialized before calling hw_reset */
- spin_lock_init(&nic->cb_lock);
- spin_lock_init(&nic->cmd_lock);
- spin_lock_init(&nic->mdio_lock);
-
- /* Reset the device before pci_set_master() in case device is in some
- * funky state and has an interrupt pending - hint: we don't have the
- * interrupt handler registered yet. */
- e100_hw_reset(nic);
-
- pci_set_master(pdev);
-
- init_timer(&nic->watchdog);
- nic->watchdog.function = e100_watchdog;
- nic->watchdog.data = (unsigned long)nic;
- init_timer(&nic->blink_timer);
- nic->blink_timer.function = e100_blink_led;
- nic->blink_timer.data = (unsigned long)nic;
-
- INIT_WORK(&nic->tx_timeout_task,
- (void (*)(void *))e100_tx_timeout_task, netdev);
-
- if((err = e100_alloc(nic))) {
- DPRINTK(PROBE, ERR, "Cannot alloc driver memory, aborting.\n");
- goto err_out_iounmap;
- }
-
- if((err = e100_eeprom_load(nic)))
- goto err_out_free;
-
- e100_phy_init(nic);
-
- memcpy(netdev->dev_addr, nic->eeprom, ETH_ALEN);
- memcpy(netdev->perm_addr, nic->eeprom, ETH_ALEN);
- if(!is_valid_ether_addr(netdev->perm_addr)) {
- DPRINTK(PROBE, ERR, "Invalid MAC address from "
- "EEPROM, aborting.\n");
- err = -EAGAIN;
- goto err_out_free;
- }
-
- /* Wol magic packet can be enabled from eeprom */
- if((nic->mac >= mac_82558_D101_A4) &&
- (nic->eeprom[eeprom_id] & eeprom_id_wol))
- nic->flags |= wol_magic;
-
- /* ack any pending wake events, disable PME */
- err = pci_enable_wake(pdev, 0, 0);
- if (err)
- DPRINTK(PROBE, ERR, "Error clearing wake event\n");
-
- if (!nic->ethercat) {
- strcpy(netdev->name, "eth%d");
- if((err = register_netdev(netdev))) {
- DPRINTK(PROBE, ERR, "Cannot register net device, aborting.\n");
- goto err_out_free;
- }
- }
- else {
- strcpy(netdev->name, "ec0");
- }
-
- DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, "
- "MAC addr %02X:%02X:%02X:%02X:%02X:%02X\n",
- (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
- netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
- netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
-
- return 0;
-
-err_out_free:
- e100_free(nic);
-err_out_iounmap:
- iounmap(nic->csr);
-err_out_free_res:
- pci_release_regions(pdev);
-err_out_disable_pdev:
- pci_disable_device(pdev);
-err_out_free_dev:
- pci_set_drvdata(pdev, NULL);
- free_netdev(netdev);
- return err;
-}
-
-static void __devexit e100_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
-
- if(netdev) {
- struct nic *nic = netdev_priv(netdev);
- if (!nic->ethercat)
- unregister_netdev(netdev);
- e100_free(nic);
- iounmap(nic->csr);
- free_netdev(netdev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-#ifdef CONFIG_PM
-static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
- if (nic->ethercat || netif_running(netdev))
- e100_down(nic);
- e100_hw_reset(nic);
- if (!nic->ethercat)
- netif_device_detach(netdev);
-
- pci_save_state(pdev);
- retval = pci_enable_wake(pdev, pci_choose_state(pdev, state),
- nic->flags & (wol_magic | e100_asf(nic)));
- if (retval)
- DPRINTK(PROBE,ERR, "Error enabling wake\n");
- pci_disable_device(pdev);
- retval = pci_set_power_state(pdev, pci_choose_state(pdev, state));
- if (retval)
- DPRINTK(PROBE,ERR, "Error %d setting power state\n", retval);
-
- return 0;
-}
-
-static int e100_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
- retval = pci_set_power_state(pdev, PCI_D0);
- if (retval)
- DPRINTK(PROBE,ERR, "Error waking adapter\n");
- pci_restore_state(pdev);
- /* ack any pending wake events, disable PME */
- retval = pci_enable_wake(pdev, 0, 0);
- if (retval)
- DPRINTK(PROBE,ERR, "Error clearing wake events\n");
-
- if (!nic->ethercat)
- netif_device_attach(netdev);
- if (nic->ethercat || netif_running(netdev))
- e100_up(nic);
-
- return 0;
-}
-#endif
-
-
-static void e100_shutdown(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
-#ifdef CONFIG_PM
- retval = pci_enable_wake(pdev, 0, nic->flags & (wol_magic | e100_asf(nic)));
-#else
- retval = pci_enable_wake(pdev, 0, nic->flags & (wol_magic));
-#endif
- if (retval)
- DPRINTK(PROBE,ERR, "Error enabling wake\n");
-}
-
-/* ------------------ PCI Error Recovery infrastructure -------------- */
-/**
- * e100_io_error_detected - called when PCI error is detected.
- * @pdev: Pointer to PCI device
- * @state: The current pci conneection state
- */
-static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- /* Similar to calling e100_down(), but avoids adpater I/O. */
- netdev->stop(netdev);
-
- if (!nic->ethercat) {
- /* Detach; put netif into state similar to hotplug unplug. */
- netif_poll_enable(netdev);
- netif_device_detach(netdev);
- }
-
- /* Request a slot reset. */
- return PCI_ERS_RESULT_NEED_RESET;
-}
-
-/**
- * e100_io_slot_reset - called after the pci bus has been reset.
- * @pdev: Pointer to PCI device
- *
- * Restart the card from scratch.
- */
-static pci_ers_result_t e100_io_slot_reset(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- if (pci_enable_device(pdev)) {
- printk(KERN_ERR "e100: Cannot re-enable PCI device after reset.\n");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_set_master(pdev);
-
- /* Only one device per card can do a reset */
- if (0 != PCI_FUNC(pdev->devfn))
- return PCI_ERS_RESULT_RECOVERED;
- e100_hw_reset(nic);
- e100_phy_init(nic);
-
- return PCI_ERS_RESULT_RECOVERED;
-}
-
-/**
- * e100_io_resume - resume normal operations
- * @pdev: Pointer to PCI device
- *
- * Resume normal operations after an error recovery
- * sequence has been completed.
- */
-static void e100_io_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- /* ack any pending wake events, disable PME */
- pci_enable_wake(pdev, 0, 0);
-
- if (!nic->ethercat)
- netif_device_attach(netdev);
- if (nic->ethercat || netif_running(netdev)) {
- e100_open(netdev);
- mod_timer(&nic->watchdog, jiffies);
- }
-}
-
-static struct pci_error_handlers e100_err_handler = {
- .error_detected = e100_io_error_detected,
- .slot_reset = e100_io_slot_reset,
- .resume = e100_io_resume,
-};
-
-static struct pci_driver e100_driver = {
- .name = DRV_NAME,
- .id_table = e100_id_table,
- .probe = e100_probe,
- .remove = __devexit_p(e100_remove),
-#ifdef CONFIG_PM
- .suspend = e100_suspend,
- .resume = e100_resume,
-#endif
- .shutdown = e100_shutdown,
- .err_handler = &e100_err_handler,
-};
-
-static int __init e100_init_module(void)
-{
- struct nic *nic;
-
- printk(KERN_INFO DRV_NAME " " DRV_DESCRIPTION " " DRV_VERSION
- ", master " EC_MASTER_VERSION "\n");
- printk(KERN_INFO DRV_NAME " ec_device_index is %i\n", ec_device_index);
-
- if (pci_module_init(&e100_driver) < 0) {
- printk(KERN_ERR DRV_NAME " Failed to init PCI module.\n");
- goto out_return;
- }
-
- if (e100_ec_netdev) {
- nic = netdev_priv(e100_ec_netdev);
- printk(KERN_INFO DRV_NAME " Registering EtherCAT device...\n");
- if (!(nic->ecdev = ecdev_register(ec_device_master_index,
- e100_ec_netdev, e100_ec_poll, THIS_MODULE))) {
- printk(KERN_ERR DRV_NAME " Failed to register EtherCAT device!\n");
- goto out_pci;
- }
- printk(KERN_INFO DRV_NAME " Opening EtherCAT device...\n");
- if (ecdev_open(nic->ecdev)) {
- printk(KERN_ERR DRV_NAME " Failed to open EtherCAT device!\n");
- goto out_unregister;
- }
-
- printk(KERN_INFO DRV_NAME " EtherCAT device ready.\n");
- } else {
- printk(KERN_WARNING DRV_NAME " No EtherCAT device registered!\n");
- }
-
- return 0;
-
-out_unregister:
- printk(KERN_INFO DRV_NAME " Unregistering EtherCAT device...\n");
- ecdev_unregister(ec_device_master_index, nic->ecdev);
-out_pci:
- pci_unregister_driver(&e100_driver);
-out_return:
- return -1;
-}
-
-static void __exit e100_cleanup_module(void)
-{
- printk(KERN_INFO DRV_NAME " Cleaning up module...\n");
-
- if (e100_ec_netdev) {
- struct nic *nic = netdev_priv(e100_ec_netdev);
- printk(KERN_INFO DRV_NAME " Closing EtherCAT device...\n");
- ecdev_close(nic->ecdev);
- printk(KERN_INFO DRV_NAME " Unregistering EtherCAT device...\n");
- ecdev_unregister(ec_device_master_index, nic->ecdev);
- }
-
- pci_unregister_driver(&e100_driver);
-
- printk(KERN_INFO DRV_NAME " module cleaned up.\n");
-}
-
-module_init(e100_init_module);
-module_exit(e100_cleanup_module);
--- a/devices/e100-2.6.18-orig.c Tue Sep 30 12:33:03 2008 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,2889 +0,0 @@
-/*******************************************************************************
-
-
- 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
- Software Foundation; either version 2 of the License, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc., 59
- Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- The full GNU General Public License is included in this distribution in the
- file called LICENSE.
-
- Contact Information:
- Linux NICS <linux.nics@intel.com>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
-
-/*
- * e100.c: Intel(R) PRO/100 ethernet driver
- *
- * (Re)written 2003 by scott.feldman@intel.com. Based loosely on
- * original e100 driver, but better described as a munging of
- * e100, e1000, eepro100, tg3, 8139cp, and other drivers.
- *
- * References:
- * Intel 8255x 10/100 Mbps Ethernet Controller Family,
- * Open Source Software Developers Manual,
- * http://sourceforge.net/projects/e1000
- *
- *
- * Theory of Operation
- *
- * I. General
- *
- * The driver supports Intel(R) 10/100 Mbps PCI Fast Ethernet
- * controller family, which includes the 82557, 82558, 82559, 82550,
- * 82551, and 82562 devices. 82558 and greater controllers
- * integrate the Intel 82555 PHY. The controllers are used in
- * server and client network interface cards, as well as in
- * LAN-On-Motherboard (LOM), CardBus, MiniPCI, and ICHx
- * configurations. 8255x supports a 32-bit linear addressing
- * mode and operates at 33Mhz PCI clock rate.
- *
- * II. Driver Operation
- *
- * Memory-mapped mode is used exclusively to access the device's
- * shared-memory structure, the Control/Status Registers (CSR). All
- * setup, configuration, and control of the device, including queuing
- * of Tx, Rx, and configuration commands is through the CSR.
- * cmd_lock serializes accesses to the CSR command register. cb_lock
- * protects the shared Command Block List (CBL).
- *
- * 8255x is highly MII-compliant and all access to the PHY go
- * through the Management Data Interface (MDI). Consequently, the
- * driver leverages the mii.c library shared with other MII-compliant
- * devices.
- *
- * Big- and Little-Endian byte order as well as 32- and 64-bit
- * archs are supported. Weak-ordered memory and non-cache-coherent
- * archs are supported.
- *
- * III. Transmit
- *
- * A Tx skb is mapped and hangs off of a TCB. TCBs are linked
- * together in a fixed-size ring (CBL) thus forming the flexible mode
- * memory structure. A TCB marked with the suspend-bit indicates
- * the end of the ring. The last TCB processed suspends the
- * controller, and the controller can be restarted by issue a CU
- * resume command to continue from the suspend point, or a CU start
- * command to start at a given position in the ring.
- *
- * Non-Tx commands (config, multicast setup, etc) are linked
- * into the CBL ring along with Tx commands. The common structure
- * used for both Tx and non-Tx commands is the Command Block (CB).
- *
- * cb_to_use is the next CB to use for queuing a command; cb_to_clean
- * is the next CB to check for completion; cb_to_send is the first
- * CB to start on in case of a previous failure to resume. CB clean
- * up happens in interrupt context in response to a CU interrupt.
- * cbs_avail keeps track of number of free CB resources available.
- *
- * Hardware padding of short packets to minimum packet size is
- * enabled. 82557 pads with 7Eh, while the later controllers pad
- * with 00h.
- *
- * IV. Recieve
- *
- * The Receive Frame Area (RFA) comprises a ring of Receive Frame
- * Descriptors (RFD) + data buffer, thus forming the simplified mode
- * memory structure. Rx skbs are allocated to contain both the RFD
- * and the data buffer, but the RFD is pulled off before the skb is
- * indicated. The data buffer is aligned such that encapsulated
- * protocol headers are u32-aligned. Since the RFD is part of the
- * mapped shared memory, and completion status is contained within
- * the RFD, the RFD must be dma_sync'ed to maintain a consistent
- * view from software and hardware.
- *
- * Under typical operation, the receive unit (RU) is start once,
- * and the controller happily fills RFDs as frames arrive. If
- * replacement RFDs cannot be allocated, or the RU goes non-active,
- * the RU must be restarted. Frame arrival generates an interrupt,
- * and Rx indication and re-allocation happen in the same context,
- * therefore no locking is required. A software-generated interrupt
- * is generated from the watchdog to recover from a failed allocation
- * senario where all Rx resources have been indicated and none re-
- * placed.
- *
- * V. Miscellaneous
- *
- * VLAN offloading of tagging, stripping and filtering is not
- * supported, but driver will accommodate the extra 4-byte VLAN tag
- * for processing by upper layers. Tx/Rx Checksum offloading is not
- * supported. Tx Scatter/Gather is not supported. Jumbo Frames is
- * not supported (hardware limitation).
- *
- * MagicPacket(tm) WoL support is enabled/disabled via ethtool.
- *
- * Thanks to JC (jchapman@katalix.com) for helping with
- * testing/troubleshooting the development driver.
- *
- * TODO:
- * o several entry points race with dev->close
- * o check for tx-no-resources/stop Q races with tx clean/wake Q
- *
- * FIXES:
- * 2005/12/02 - Michael O'Donnell <Michael.ODonnell at stratus dot com>
- * - Stratus87247: protect MDI control register manipulations
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include <linux/if_vlan.h>
-#include <linux/skbuff.h>
-#include <linux/ethtool.h>
-#include <linux/string.h>
-#include <asm/unaligned.h>
-
-
-#define DRV_NAME "e100"
-#define DRV_EXT "-NAPI"
-#define DRV_VERSION "3.5.10-k2"DRV_EXT
-#define DRV_DESCRIPTION "Intel(R) PRO/100 Network Driver"
-#define DRV_COPYRIGHT "Copyright(c) 1999-2005 Intel Corporation"
-#define PFX DRV_NAME ": "
-
-#define E100_WATCHDOG_PERIOD (2 * HZ)
-#define E100_NAPI_WEIGHT 16
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_AUTHOR(DRV_COPYRIGHT);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-static int debug = 3;
-static int eeprom_bad_csum_allow = 0;
-module_param(debug, int, 0);
-module_param(eeprom_bad_csum_allow, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums");
-#define DPRINTK(nlevel, klevel, fmt, args...) \
- (void)((NETIF_MSG_##nlevel & nic->msg_enable) && \
- printk(KERN_##klevel PFX "%s: %s: " fmt, nic->netdev->name, \
- __FUNCTION__ , ## args))
-
-#define INTEL_8255X_ETHERNET_DEVICE(device_id, ich) {\
- PCI_VENDOR_ID_INTEL, device_id, PCI_ANY_ID, PCI_ANY_ID, \
- PCI_CLASS_NETWORK_ETHERNET << 8, 0xFFFF00, ich }
-static struct pci_device_id e100_id_table[] = {
- INTEL_8255X_ETHERNET_DEVICE(0x1029, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1030, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1031, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1032, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1033, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1034, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1038, 3),
- INTEL_8255X_ETHERNET_DEVICE(0x1039, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103A, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103B, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103C, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103D, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x103E, 4),
- INTEL_8255X_ETHERNET_DEVICE(0x1050, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1051, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1052, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1053, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1054, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1055, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1056, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1057, 5),
- INTEL_8255X_ETHERNET_DEVICE(0x1059, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1064, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1065, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1066, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1067, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1068, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1069, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x106A, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x106B, 6),
- INTEL_8255X_ETHERNET_DEVICE(0x1091, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1092, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1093, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1094, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1095, 7),
- INTEL_8255X_ETHERNET_DEVICE(0x1209, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x1229, 0),
- INTEL_8255X_ETHERNET_DEVICE(0x2449, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x2459, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x245D, 2),
- INTEL_8255X_ETHERNET_DEVICE(0x27DC, 7),
- { 0, }
-};
-MODULE_DEVICE_TABLE(pci, e100_id_table);
-
-enum mac {
- mac_82557_D100_A = 0,
- mac_82557_D100_B = 1,
- mac_82557_D100_C = 2,
- mac_82558_D101_A4 = 4,
- mac_82558_D101_B0 = 5,
- mac_82559_D101M = 8,
- mac_82559_D101S = 9,
- mac_82550_D102 = 12,
- mac_82550_D102_C = 13,
- mac_82551_E = 14,
- mac_82551_F = 15,
- mac_82551_10 = 16,
- mac_unknown = 0xFF,
-};
-
-enum phy {
- phy_100a = 0x000003E0,
- phy_100c = 0x035002A8,
- phy_82555_tx = 0x015002A8,
- phy_nsc_tx = 0x5C002000,
- phy_82562_et = 0x033002A8,
- phy_82562_em = 0x032002A8,
- phy_82562_ek = 0x031002A8,
- phy_82562_eh = 0x017002A8,
- phy_unknown = 0xFFFFFFFF,
-};
-
-/* CSR (Control/Status Registers) */
-struct csr {
- struct {
- u8 status;
- u8 stat_ack;
- u8 cmd_lo;
- u8 cmd_hi;
- u32 gen_ptr;
- } scb;
- u32 port;
- u16 flash_ctrl;
- u8 eeprom_ctrl_lo;
- u8 eeprom_ctrl_hi;
- u32 mdi_ctrl;
- u32 rx_dma_count;
-};
-
-enum scb_status {
- rus_ready = 0x10,
- rus_mask = 0x3C,
-};
-
-enum ru_state {
- RU_SUSPENDED = 0,
- RU_RUNNING = 1,
- RU_UNINITIALIZED = -1,
-};
-
-enum scb_stat_ack {
- stat_ack_not_ours = 0x00,
- stat_ack_sw_gen = 0x04,
- stat_ack_rnr = 0x10,
- stat_ack_cu_idle = 0x20,
- stat_ack_frame_rx = 0x40,
- stat_ack_cu_cmd_done = 0x80,
- stat_ack_not_present = 0xFF,
- stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx),
- stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done),
-};
-
-enum scb_cmd_hi {
- irq_mask_none = 0x00,
- irq_mask_all = 0x01,
- irq_sw_gen = 0x02,
-};
-
-enum scb_cmd_lo {
- cuc_nop = 0x00,
- ruc_start = 0x01,
- ruc_load_base = 0x06,
- cuc_start = 0x10,
- cuc_resume = 0x20,
- cuc_dump_addr = 0x40,
- cuc_dump_stats = 0x50,
- cuc_load_base = 0x60,
- cuc_dump_reset = 0x70,
-};
-
-enum cuc_dump {
- cuc_dump_complete = 0x0000A005,
- cuc_dump_reset_complete = 0x0000A007,
-};
-
-enum port {
- software_reset = 0x0000,
- selftest = 0x0001,
- selective_reset = 0x0002,
-};
-
-enum eeprom_ctrl_lo {
- eesk = 0x01,
- eecs = 0x02,
- eedi = 0x04,
- eedo = 0x08,
-};
-
-enum mdi_ctrl {
- mdi_write = 0x04000000,
- mdi_read = 0x08000000,
- mdi_ready = 0x10000000,
-};
-
-enum eeprom_op {
- op_write = 0x05,
- op_read = 0x06,
- op_ewds = 0x10,
- op_ewen = 0x13,
-};
-
-enum eeprom_offsets {
- eeprom_cnfg_mdix = 0x03,
- eeprom_id = 0x0A,
- eeprom_config_asf = 0x0D,
- eeprom_smbus_addr = 0x90,
-};
-
-enum eeprom_cnfg_mdix {
- eeprom_mdix_enabled = 0x0080,
-};
-
-enum eeprom_id {
- eeprom_id_wol = 0x0020,
-};
-
-enum eeprom_config_asf {
- eeprom_asf = 0x8000,
- eeprom_gcl = 0x4000,
-};
-
-enum cb_status {
- cb_complete = 0x8000,
- cb_ok = 0x2000,
-};
-
-enum cb_command {
- cb_nop = 0x0000,
- cb_iaaddr = 0x0001,
- cb_config = 0x0002,
- cb_multi = 0x0003,
- cb_tx = 0x0004,
- cb_ucode = 0x0005,
- cb_dump = 0x0006,
- cb_tx_sf = 0x0008,
- cb_cid = 0x1f00,
- cb_i = 0x2000,
- cb_s = 0x4000,
- cb_el = 0x8000,
-};
-
-struct rfd {
- u16 status;
- u16 command;
- u32 link;
- u32 rbd;
- u16 actual_size;
- u16 size;
-};
-
-struct rx {
- struct rx *next, *prev;
- struct sk_buff *skb;
- dma_addr_t dma_addr;
-};
-
-#if defined(__BIG_ENDIAN_BITFIELD)
-#define X(a,b) b,a
-#else
-#define X(a,b) a,b
-#endif
-struct config {
-/*0*/ u8 X(byte_count:6, pad0:2);
-/*1*/ u8 X(X(rx_fifo_limit:4, tx_fifo_limit:3), pad1:1);
-/*2*/ u8 adaptive_ifs;
-/*3*/ u8 X(X(X(X(mwi_enable:1, type_enable:1), read_align_enable:1),
- term_write_cache_line:1), pad3:4);
-/*4*/ u8 X(rx_dma_max_count:7, pad4:1);
-/*5*/ u8 X(tx_dma_max_count:7, dma_max_count_enable:1);
-/*6*/ u8 X(X(X(X(X(X(X(late_scb_update:1, direct_rx_dma:1),
- tno_intr:1), cna_intr:1), standard_tcb:1), standard_stat_counter:1),
- rx_discard_overruns:1), rx_save_bad_frames:1);
-/*7*/ u8 X(X(X(X(X(rx_discard_short_frames:1, tx_underrun_retry:2),
- pad7:2), rx_extended_rfd:1), tx_two_frames_in_fifo:1),
- tx_dynamic_tbd:1);
-/*8*/ u8 X(X(mii_mode:1, pad8:6), csma_disabled:1);
-/*9*/ u8 X(X(X(X(X(rx_tcpudp_checksum:1, pad9:3), vlan_arp_tco:1),
- link_status_wake:1), arp_wake:1), mcmatch_wake:1);
-/*10*/ u8 X(X(X(pad10:3, no_source_addr_insertion:1), preamble_length:2),
- loopback:2);
-/*11*/ u8 X(linear_priority:3, pad11:5);
-/*12*/ u8 X(X(linear_priority_mode:1, pad12:3), ifs:4);
-/*13*/ u8 ip_addr_lo;
-/*14*/ u8 ip_addr_hi;
-/*15*/ u8 X(X(X(X(X(X(X(promiscuous_mode:1, broadcast_disabled:1),
- wait_after_win:1), pad15_1:1), ignore_ul_bit:1), crc_16_bit:1),
- pad15_2:1), crs_or_cdt:1);
-/*16*/ u8 fc_delay_lo;
-/*17*/ u8 fc_delay_hi;
-/*18*/ u8 X(X(X(X(X(rx_stripping:1, tx_padding:1), rx_crc_transfer:1),
- rx_long_ok:1), fc_priority_threshold:3), pad18:1);
-/*19*/ u8 X(X(X(X(X(X(X(addr_wake:1, magic_packet_disable:1),
- fc_disable:1), fc_restop:1), fc_restart:1), fc_reject:1),
- full_duplex_force:1), full_duplex_pin:1);
-/*20*/ u8 X(X(X(pad20_1:5, fc_priority_location:1), multi_ia:1), pad20_2:1);
-/*21*/ u8 X(X(pad21_1:3, multicast_all:1), pad21_2:4);
-/*22*/ u8 X(X(rx_d102_mode:1, rx_vlan_drop:1), pad22:6);
- u8 pad_d102[9];
-};
-
-#define E100_MAX_MULTICAST_ADDRS 64
-struct multi {
- u16 count;
- u8 addr[E100_MAX_MULTICAST_ADDRS * ETH_ALEN + 2/*pad*/];
-};
-
-/* Important: keep total struct u32-aligned */
-#define UCODE_SIZE 134
-struct cb {
- u16 status;
- u16 command;
- u32 link;
- union {
- u8 iaaddr[ETH_ALEN];
- u32 ucode[UCODE_SIZE];
- struct config config;
- struct multi multi;
- struct {
- u32 tbd_array;
- u16 tcb_byte_count;
- u8 threshold;
- u8 tbd_count;
- struct {
- u32 buf_addr;
- u16 size;
- u16 eol;
- } tbd;
- } tcb;
- u32 dump_buffer_addr;
- } u;
- struct cb *next, *prev;
- dma_addr_t dma_addr;
- struct sk_buff *skb;
-};
-
-enum loopback {
- lb_none = 0, lb_mac = 1, lb_phy = 3,
-};
-
-struct stats {
- u32 tx_good_frames, tx_max_collisions, tx_late_collisions,
- tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions,
- tx_multiple_collisions, tx_total_collisions;
- u32 rx_good_frames, rx_crc_errors, rx_alignment_errors,
- rx_resource_errors, rx_overrun_errors, rx_cdt_errors,
- rx_short_frame_errors;
- u32 fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported;
- u16 xmt_tco_frames, rcv_tco_frames;
- u32 complete;
-};
-
-struct mem {
- struct {
- u32 signature;
- u32 result;
- } selftest;
- struct stats stats;
- u8 dump_buf[596];
-};
-
-struct param_range {
- u32 min;
- u32 max;
- u32 count;
-};
-
-struct params {
- struct param_range rfds;
- struct param_range cbs;
-};
-
-struct nic {
- /* Begin: frequently used values: keep adjacent for cache effect */
- u32 msg_enable ____cacheline_aligned;
- struct net_device *netdev;
- struct pci_dev *pdev;
-
- struct rx *rxs ____cacheline_aligned;
- struct rx *rx_to_use;
- struct rx *rx_to_clean;
- struct rfd blank_rfd;
- enum ru_state ru_running;
-
- spinlock_t cb_lock ____cacheline_aligned;
- spinlock_t cmd_lock;
- struct csr __iomem *csr;
- enum scb_cmd_lo cuc_cmd;
- unsigned int cbs_avail;
- struct cb *cbs;
- struct cb *cb_to_use;
- struct cb *cb_to_send;
- struct cb *cb_to_clean;
- u16 tx_command;
- /* End: frequently used values: keep adjacent for cache effect */
-
- enum {
- ich = (1 << 0),
- promiscuous = (1 << 1),
- multicast_all = (1 << 2),
- wol_magic = (1 << 3),
- ich_10h_workaround = (1 << 4),
- } flags ____cacheline_aligned;
-
- enum mac mac;
- enum phy phy;
- struct params params;
- struct net_device_stats net_stats;
- struct timer_list watchdog;
- struct timer_list blink_timer;
- struct mii_if_info mii;
- struct work_struct tx_timeout_task;
- enum loopback loopback;
-
- struct mem *mem;
- dma_addr_t dma_addr;
-
- dma_addr_t cbs_dma_addr;
- u8 adaptive_ifs;
- u8 tx_threshold;
- u32 tx_frames;
- u32 tx_collisions;
- u32 tx_deferred;
- u32 tx_single_collisions;
- u32 tx_multiple_collisions;
- u32 tx_fc_pause;
- u32 tx_tco_frames;
-
- u32 rx_fc_pause;
- u32 rx_fc_unsupported;
- u32 rx_tco_frames;
- u32 rx_over_length_errors;
-
- u8 rev_id;
- u16 leds;
- u16 eeprom_wc;
- u16 eeprom[256];
- spinlock_t mdio_lock;
-};
-
-static inline void e100_write_flush(struct nic *nic)
-{
- /* Flush previous PCI writes through intermediate bridges
- * by doing a benign read */
- (void)readb(&nic->csr->scb.status);
-}
-
-static void e100_enable_irq(struct nic *nic)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
- writeb(irq_mask_none, &nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-}
-
-static void e100_disable_irq(struct nic *nic)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
- writeb(irq_mask_all, &nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-}
-
-static void e100_hw_reset(struct nic *nic)
-{
- /* Put CU and RU into idle with a selective reset to get
- * device off of PCI bus */
- writel(selective_reset, &nic->csr->port);
- e100_write_flush(nic); udelay(20);
-
- /* Now fully reset device */
- writel(software_reset, &nic->csr->port);
- e100_write_flush(nic); udelay(20);
-
- /* Mask off our interrupt line - it's unmasked after reset */
- e100_disable_irq(nic);
-}
-
-static int e100_self_test(struct nic *nic)
-{
- u32 dma_addr = nic->dma_addr + offsetof(struct mem, selftest);
-
- /* Passing the self-test is a pretty good indication
- * that the device can DMA to/from host memory */
-
- nic->mem->selftest.signature = 0;
- nic->mem->selftest.result = 0xFFFFFFFF;
-
- writel(selftest | dma_addr, &nic->csr->port);
- e100_write_flush(nic);
- /* Wait 10 msec for self-test to complete */
- msleep(10);
-
- /* Interrupts are enabled after self-test */
- e100_disable_irq(nic);
-
- /* Check results of self-test */
- if(nic->mem->selftest.result != 0) {
- DPRINTK(HW, ERR, "Self-test failed: result=0x%08X\n",
- nic->mem->selftest.result);
- return -ETIMEDOUT;
- }
- if(nic->mem->selftest.signature == 0) {
- DPRINTK(HW, ERR, "Self-test failed: timed out\n");
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static void e100_eeprom_write(struct nic *nic, u16 addr_len, u16 addr, u16 data)
-{
- u32 cmd_addr_data[3];
- u8 ctrl;
- int i, j;
-
- /* Three cmds: write/erase enable, write data, write/erase disable */
- cmd_addr_data[0] = op_ewen << (addr_len - 2);
- cmd_addr_data[1] = (((op_write << addr_len) | addr) << 16) |
- cpu_to_le16(data);
- cmd_addr_data[2] = op_ewds << (addr_len - 2);
-
- /* Bit-bang cmds to write word to eeprom */
- for(j = 0; j < 3; j++) {
-
- /* Chip select */
- writeb(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- for(i = 31; i >= 0; i--) {
- ctrl = (cmd_addr_data[j] & (1 << i)) ?
- eecs | eedi : eecs;
- writeb(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- writeb(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
- /* Wait 10 msec for cmd to complete */
- msleep(10);
-
- /* Chip deselect */
- writeb(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
-};
-
-/* General technique stolen from the eepro100 driver - very clever */
-static u16 e100_eeprom_read(struct nic *nic, u16 *addr_len, u16 addr)
-{
- u32 cmd_addr_data;
- u16 data = 0;
- u8 ctrl;
- int i;
-
- cmd_addr_data = ((op_read << *addr_len) | addr) << 16;
-
- /* Chip select */
- writeb(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- /* Bit-bang to read word from eeprom */
- for(i = 31; i >= 0; i--) {
- ctrl = (cmd_addr_data & (1 << i)) ? eecs | eedi : eecs;
- writeb(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- writeb(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- /* Eeprom drives a dummy zero to EEDO after receiving
- * complete address. Use this to adjust addr_len. */
- ctrl = readb(&nic->csr->eeprom_ctrl_lo);
- if(!(ctrl & eedo) && i > 16) {
- *addr_len -= (i - 16);
- i = 17;
- }
-
- data = (data << 1) | (ctrl & eedo ? 1 : 0);
- }
-
- /* Chip deselect */
- writeb(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- return le16_to_cpu(data);
-};
-
-/* Load entire EEPROM image into driver cache and validate checksum */
-static int e100_eeprom_load(struct nic *nic)
-{
- u16 addr, addr_len = 8, checksum = 0;
-
- /* Try reading with an 8-bit addr len to discover actual addr len */
- e100_eeprom_read(nic, &addr_len, 0);
- nic->eeprom_wc = 1 << addr_len;
-
- for(addr = 0; addr < nic->eeprom_wc; addr++) {
- nic->eeprom[addr] = e100_eeprom_read(nic, &addr_len, addr);
- if(addr < nic->eeprom_wc - 1)
- checksum += cpu_to_le16(nic->eeprom[addr]);
- }
-
- /* The checksum, stored in the last word, is calculated such that
- * the sum of words should be 0xBABA */
- checksum = le16_to_cpu(0xBABA - checksum);
- if(checksum != nic->eeprom[nic->eeprom_wc - 1]) {
- DPRINTK(PROBE, ERR, "EEPROM corrupted\n");
- if (!eeprom_bad_csum_allow)
- return -EAGAIN;
- }
-
- return 0;
-}
-
-/* Save (portion of) driver EEPROM cache to device and update checksum */
-static int e100_eeprom_save(struct nic *nic, u16 start, u16 count)
-{
- u16 addr, addr_len = 8, checksum = 0;
-
- /* Try reading with an 8-bit addr len to discover actual addr len */
- e100_eeprom_read(nic, &addr_len, 0);
- nic->eeprom_wc = 1 << addr_len;
-
- if(start + count >= nic->eeprom_wc)
- return -EINVAL;
-
- for(addr = start; addr < start + count; addr++)
- e100_eeprom_write(nic, addr_len, addr, nic->eeprom[addr]);
-
- /* The checksum, stored in the last word, is calculated such that
- * the sum of words should be 0xBABA */
- for(addr = 0; addr < nic->eeprom_wc - 1; addr++)
- checksum += cpu_to_le16(nic->eeprom[addr]);
- nic->eeprom[nic->eeprom_wc - 1] = le16_to_cpu(0xBABA - checksum);
- e100_eeprom_write(nic, addr_len, nic->eeprom_wc - 1,
- nic->eeprom[nic->eeprom_wc - 1]);
-
- return 0;
-}
-
-#define E100_WAIT_SCB_TIMEOUT 20000 /* we might have to wait 100ms!!! */
-#define E100_WAIT_SCB_FAST 20 /* delay like the old code */
-static int e100_exec_cmd(struct nic *nic, u8 cmd, dma_addr_t dma_addr)
-{
- unsigned long flags;
- unsigned int i;
- int err = 0;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
-
- /* Previous command is accepted when SCB clears */
- for(i = 0; i < E100_WAIT_SCB_TIMEOUT; i++) {
- if(likely(!readb(&nic->csr->scb.cmd_lo)))
- break;
- cpu_relax();
- if(unlikely(i > E100_WAIT_SCB_FAST))
- udelay(5);
- }
- if(unlikely(i == E100_WAIT_SCB_TIMEOUT)) {
- err = -EAGAIN;
- goto err_unlock;
- }
-
- if(unlikely(cmd != cuc_resume))
- writel(dma_addr, &nic->csr->scb.gen_ptr);
- writeb(cmd, &nic->csr->scb.cmd_lo);
-
-err_unlock:
- spin_unlock_irqrestore(&nic->cmd_lock, flags);
-
- return err;
-}
-
-static int e100_exec_cb(struct nic *nic, struct sk_buff *skb,
- void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
-{
- struct cb *cb;
- unsigned long flags;
- int err = 0;
-
- spin_lock_irqsave(&nic->cb_lock, flags);
-
- if(unlikely(!nic->cbs_avail)) {
- err = -ENOMEM;
- goto err_unlock;
- }
-
- cb = nic->cb_to_use;
- nic->cb_to_use = cb->next;
- nic->cbs_avail--;
- cb->skb = skb;
-
- if(unlikely(!nic->cbs_avail))
- err = -ENOSPC;
-
- cb_prepare(nic, cb, skb);
-
- /* Order is important otherwise we'll be in a race with h/w:
- * set S-bit in current first, then clear S-bit in previous. */
- cb->command |= cpu_to_le16(cb_s);
- wmb();
- cb->prev->command &= cpu_to_le16(~cb_s);
-
- while(nic->cb_to_send != nic->cb_to_use) {
- if(unlikely(e100_exec_cmd(nic, nic->cuc_cmd,
- nic->cb_to_send->dma_addr))) {
- /* Ok, here's where things get sticky. It's
- * possible that we can't schedule the command
- * because the controller is too busy, so
- * let's just queue the command and try again
- * when another command is scheduled. */
- if(err == -ENOSPC) {
- //request a reset
- schedule_work(&nic->tx_timeout_task);
- }
- break;
- } else {
- nic->cuc_cmd = cuc_resume;
- nic->cb_to_send = nic->cb_to_send->next;
- }
- }
-
-err_unlock:
- spin_unlock_irqrestore(&nic->cb_lock, flags);
-
- return err;
-}
-
-static u16 mdio_ctrl(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data)
-{
- u32 data_out = 0;
- unsigned int i;
- unsigned long flags;
-
-
- /*
- * Stratus87247: we shouldn't be writing the MDI control
- * register until the Ready bit shows True. Also, since
- * manipulation of the MDI control registers is a multi-step
- * procedure it should be done under lock.
- */
- spin_lock_irqsave(&nic->mdio_lock, flags);
- for (i = 100; i; --i) {
- if (readl(&nic->csr->mdi_ctrl) & mdi_ready)
- break;
- udelay(20);
- }
- if (unlikely(!i)) {
- printk("e100.mdio_ctrl(%s) won't go Ready\n",
- nic->netdev->name );
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- return 0; /* No way to indicate timeout error */
- }
- writel((reg << 16) | (addr << 21) | dir | data, &nic->csr->mdi_ctrl);
-
- for (i = 0; i < 100; i++) {
- udelay(20);
- if ((data_out = readl(&nic->csr->mdi_ctrl)) & mdi_ready)
- break;
- }
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- DPRINTK(HW, DEBUG,
- "%s:addr=%d, reg=%d, data_in=0x%04X, data_out=0x%04X\n",
- dir == mdi_read ? "READ" : "WRITE", addr, reg, data, data_out);
- return (u16)data_out;
-}
-
-static int mdio_read(struct net_device *netdev, int addr, int reg)
-{
- return mdio_ctrl(netdev_priv(netdev), addr, mdi_read, reg, 0);
-}
-
-static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
-{
- mdio_ctrl(netdev_priv(netdev), addr, mdi_write, reg, data);
-}
-
-static void e100_get_defaults(struct nic *nic)
-{
- struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
- struct param_range cbs = { .min = 64, .max = 256, .count = 128 };
-
- pci_read_config_byte(nic->pdev, PCI_REVISION_ID, &nic->rev_id);
- /* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
- nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->rev_id;
- if(nic->mac == mac_unknown)
- nic->mac = mac_82557_D100_A;
-
- nic->params.rfds = rfds;
- nic->params.cbs = cbs;
-
- /* Quadwords to DMA into FIFO before starting frame transmit */
- nic->tx_threshold = 0xE0;
-
- /* no interrupt for every tx completion, delay = 256us if not 557*/
- nic->tx_command = cpu_to_le16(cb_tx | cb_tx_sf |
- ((nic->mac >= mac_82558_D101_A4) ? cb_cid : cb_i));
-
- /* Template for a freshly allocated RFD */
- nic->blank_rfd.command = cpu_to_le16(cb_el);
- nic->blank_rfd.rbd = 0xFFFFFFFF;
- nic->blank_rfd.size = cpu_to_le16(VLAN_ETH_FRAME_LEN);
-
- /* MII setup */
- nic->mii.phy_id_mask = 0x1F;
- nic->mii.reg_num_mask = 0x1F;
- nic->mii.dev = nic->netdev;
- nic->mii.mdio_read = mdio_read;
- nic->mii.mdio_write = mdio_write;
-}
-
-static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- struct config *config = &cb->u.config;
- u8 *c = (u8 *)config;
-
- cb->command = cpu_to_le16(cb_config);
-
- memset(config, 0, sizeof(struct config));
-
- config->byte_count = 0x16; /* bytes in this struct */
- config->rx_fifo_limit = 0x8; /* bytes in FIFO before DMA */
- config->direct_rx_dma = 0x1; /* reserved */
- config->standard_tcb = 0x1; /* 1=standard, 0=extended */
- config->standard_stat_counter = 0x1; /* 1=standard, 0=extended */
- config->rx_discard_short_frames = 0x1; /* 1=discard, 0=pass */
- config->tx_underrun_retry = 0x3; /* # of underrun retries */
- config->mii_mode = 0x1; /* 1=MII mode, 0=503 mode */
- config->pad10 = 0x6;
- config->no_source_addr_insertion = 0x1; /* 1=no, 0=yes */
- config->preamble_length = 0x2; /* 0=1, 1=3, 2=7, 3=15 bytes */
- config->ifs = 0x6; /* x16 = inter frame spacing */
- config->ip_addr_hi = 0xF2; /* ARP IP filter - not used */
- config->pad15_1 = 0x1;
- config->pad15_2 = 0x1;
- config->crs_or_cdt = 0x0; /* 0=CRS only, 1=CRS or CDT */
- config->fc_delay_hi = 0x40; /* time delay for fc frame */
- config->tx_padding = 0x1; /* 1=pad short frames */
- config->fc_priority_threshold = 0x7; /* 7=priority fc disabled */
- config->pad18 = 0x1;
- config->full_duplex_pin = 0x1; /* 1=examine FDX# pin */
- config->pad20_1 = 0x1F;
- config->fc_priority_location = 0x1; /* 1=byte#31, 0=byte#19 */
- config->pad21_1 = 0x5;
-
- config->adaptive_ifs = nic->adaptive_ifs;
- config->loopback = nic->loopback;
-
- if(nic->mii.force_media && nic->mii.full_duplex)
- config->full_duplex_force = 0x1; /* 1=force, 0=auto */
-
- if(nic->flags & promiscuous || nic->loopback) {
- config->rx_save_bad_frames = 0x1; /* 1=save, 0=discard */
- config->rx_discard_short_frames = 0x0; /* 1=discard, 0=save */
- config->promiscuous_mode = 0x1; /* 1=on, 0=off */
- }
-
- if(nic->flags & multicast_all)
- config->multicast_all = 0x1; /* 1=accept, 0=no */
-
- /* disable WoL when up */
- if(netif_running(nic->netdev) || !(nic->flags & wol_magic))
- config->magic_packet_disable = 0x1; /* 1=off, 0=on */
-
- if(nic->mac >= mac_82558_D101_A4) {
- config->fc_disable = 0x1; /* 1=Tx fc off, 0=Tx fc on */
- config->mwi_enable = 0x1; /* 1=enable, 0=disable */
- config->standard_tcb = 0x0; /* 1=standard, 0=extended */
- config->rx_long_ok = 0x1; /* 1=VLANs ok, 0=standard */
- if(nic->mac >= mac_82559_D101M)
- config->tno_intr = 0x1; /* TCO stats enable */
- else
- config->standard_stat_counter = 0x0;
- }
-
- DPRINTK(HW, DEBUG, "[00-07]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
- DPRINTK(HW, DEBUG, "[08-15]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[8], c[9], c[10], c[11], c[12], c[13], c[14], c[15]);
- DPRINTK(HW, DEBUG, "[16-23]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
-}
-
-/********************************************************/
-/* Micro code for 8086:1229 Rev 8 */
-/********************************************************/
-
-/* Parameter values for the D101M B-step */
-#define D101M_CPUSAVER_TIMER_DWORD 78
-#define D101M_CPUSAVER_BUNDLE_DWORD 65
-#define D101M_CPUSAVER_MIN_SIZE_DWORD 126
-
-#define D101M_B_RCVBUNDLE_UCODE \
-{\
-0x00550215, 0xFFFF0437, 0xFFFFFFFF, 0x06A70789, 0xFFFFFFFF, 0x0558FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380216, \
-0x0010009C, 0x00204056, 0x002380CC, 0x00380056, \
-0x0010009C, 0x00244C0B, 0x00000800, 0x00124818, \
-0x00380438, 0x00000000, 0x00140000, 0x00380555, \
-0x00308000, 0x00100662, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222C21, 0x000C0002, 0x00103093, \
-0x00380C7A, 0x00080000, 0x00103090, 0x00380C7A, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244C2D, 0x00010004, 0x00041000, \
-0x003A0437, 0x00044010, 0x0038078A, 0x00000000, \
-0x00100099, 0x00206C7A, 0x0010009C, 0x00244C48, \
-0x00130824, 0x000C0001, 0x00101213, 0x00260C75, \
-0x00041000, 0x00010004, 0x00130826, 0x000C0006, \
-0x002206A8, 0x0013C926, 0x00101313, 0x003806A8, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380C34, 0x00000000, 0x00000000, \
-0x0021155B, 0x00100099, 0x00206559, 0x0010009C, \
-0x00244559, 0x00130836, 0x000C0000, 0x00220C62, \
-0x000C0001, 0x00101B13, 0x00229C0E, 0x00210C0E, \
-0x00226C0E, 0x00216C0E, 0x0022FC0E, 0x00215C0E, \
-0x00214C0E, 0x00380555, 0x00010004, 0x00041000, \
-0x00278C67, 0x00040800, 0x00018100, 0x003A0437, \
-0x00130826, 0x000C0001, 0x00220559, 0x00101313, \
-0x00380559, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00130831, 0x0010090B, 0x00124813, \
-0x000CFF80, 0x002606AB, 0x00041000, 0x00010004, \
-0x003806A8, 0x00000000, 0x00000000, 0x00000000, \
-}
-
-/********************************************************/
-/* Micro code for 8086:1229 Rev 9 */
-/********************************************************/
-
-/* Parameter values for the D101S */
-#define D101S_CPUSAVER_TIMER_DWORD 78
-#define D101S_CPUSAVER_BUNDLE_DWORD 67
-#define D101S_CPUSAVER_MIN_SIZE_DWORD 128
-
-#define D101S_RCVBUNDLE_UCODE \
-{\
-0x00550242, 0xFFFF047E, 0xFFFFFFFF, 0x06FF0818, 0xFFFFFFFF, 0x05A6FFFF, \
-0x000C0001, 0x00101312, 0x000C0008, 0x00380243, \
-0x0010009C, 0x00204056, 0x002380D0, 0x00380056, \
-0x0010009C, 0x00244F8B, 0x00000800, 0x00124818, \
-0x0038047F, 0x00000000, 0x00140000, 0x003805A3, \
-0x00308000, 0x00100610, 0x00100561, 0x000E0408, \
-0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
-0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
-0x000C007E, 0x00222FA1, 0x000C0002, 0x00103093, \
-0x00380F90, 0x00080000, 0x00103090, 0x00380F90, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x0010009C, 0x00244FAD, 0x00010004, 0x00041000, \
-0x003A047E, 0x00044010, 0x00380819, 0x00000000, \
-0x00100099, 0x00206FFD, 0x0010009A, 0x0020AFFD, \
-0x0010009C, 0x00244FC8, 0x00130824, 0x000C0001, \
-0x00101213, 0x00260FF7, 0x00041000, 0x00010004, \
-0x00130826, 0x000C0006, 0x00220700, 0x0013C926, \
-0x00101313, 0x00380700, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
-0x00101210, 0x00380FB6, 0x00000000, 0x00000000, \
-0x002115A9, 0x00100099, 0x002065A7, 0x0010009A, \
-0x0020A5A7, 0x0010009C, 0x002445A7, 0x00130836, \
-0x000C0000, 0x00220FE4, 0x000C0001, 0x00101B13, \
-0x00229F8E, 0x00210F8E, 0x00226F8E, 0x00216F8E, \
-0x0022FF8E, 0x00215F8E, 0x00214F8E, 0x003805A3, \
-0x00010004, 0x00041000, 0x00278FE9, 0x00040800, \
-0x00018100, 0x003A047E, 0x00130826, 0x000C0001, \
-0x002205A7, 0x00101313, 0x003805A7, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00130831, \
-0x0010090B, 0x00124813, 0x000CFF80, 0x00260703, \
-0x00041000, 0x00010004, 0x00380700 \
-}
-
-/********************************************************/
-/* Micro code for the 8086:1229 Rev F/10 */
-/********************************************************/
-
-/* Parameter values for the D102 E-step */
-#define D102_E_CPUSAVER_TIMER_DWORD 42
-#define D102_E_CPUSAVER_BUNDLE_DWORD 54
-#define D102_E_CPUSAVER_MIN_SIZE_DWORD 46
-
-#define D102_E_RCVBUNDLE_UCODE \
-{\
-0x007D028F, 0x0E4204F9, 0x14ED0C85, 0x14FA14E9, 0x0EF70E36, 0x1FFF1FFF, \
-0x00E014B9, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014BD, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014D5, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C1, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00E014C8, 0x00000000, 0x00000000, 0x00000000, \
-0x00200600, 0x00E014EE, 0x00000000, 0x00000000, \
-0x0030FF80, 0x00940E46, 0x00038200, 0x00102000, \
-0x00E00E43, 0x00000000, 0x00000000, 0x00000000, \
-0x00300006, 0x00E014FB, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000, \
-0x00906EFD, 0x00900EFD, 0x00E00EF8, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-0x00000000, 0x00000000, 0x00000000, 0x00000000, \
-}
-
-static void e100_setup_ucode(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
-/* *INDENT-OFF* */
- static struct {
- u32 ucode[UCODE_SIZE + 1];
- u8 mac;
- u8 timer_dword;
- u8 bundle_dword;
- u8 min_size_dword;
- } ucode_opts[] = {
- { D101M_B_RCVBUNDLE_UCODE,
- mac_82559_D101M,
- D101M_CPUSAVER_TIMER_DWORD,
- D101M_CPUSAVER_BUNDLE_DWORD,
- D101M_CPUSAVER_MIN_SIZE_DWORD },
- { D101S_RCVBUNDLE_UCODE,
- mac_82559_D101S,
- D101S_CPUSAVER_TIMER_DWORD,
- D101S_CPUSAVER_BUNDLE_DWORD,
- D101S_CPUSAVER_MIN_SIZE_DWORD },
- { D102_E_RCVBUNDLE_UCODE,
- mac_82551_F,
- D102_E_CPUSAVER_TIMER_DWORD,
- D102_E_CPUSAVER_BUNDLE_DWORD,
- D102_E_CPUSAVER_MIN_SIZE_DWORD },
- { D102_E_RCVBUNDLE_UCODE,
- mac_82551_10,
- D102_E_CPUSAVER_TIMER_DWORD,
- D102_E_CPUSAVER_BUNDLE_DWORD,
- D102_E_CPUSAVER_MIN_SIZE_DWORD },
- { {0}, 0, 0, 0, 0}
- }, *opts;
-/* *INDENT-ON* */
-
-/*************************************************************************
-* CPUSaver parameters
-*
-* All CPUSaver parameters are 16-bit literals that are part of a
-* "move immediate value" instruction. By changing the value of
-* the literal in the instruction before the code is loaded, the
-* driver can change the algorithm.
-*
-* INTDELAY - This loads the dead-man timer with its inital value.
-* When this timer expires the interrupt is asserted, and the
-* timer is reset each time a new packet is received. (see
-* BUNDLEMAX below to set the limit on number of chained packets)
-* The current default is 0x600 or 1536. Experiments show that
-* the value should probably stay within the 0x200 - 0x1000.
-*
-* BUNDLEMAX -
-* This sets the maximum number of frames that will be bundled. In
-* some situations, such as the TCP windowing algorithm, it may be
-* better to limit the growth of the bundle size than let it go as
-* high as it can, because that could cause too much added latency.
-* The default is six, because this is the number of packets in the
-* default TCP window size. A value of 1 would make CPUSaver indicate
-* an interrupt for every frame received. If you do not want to put
-* a limit on the bundle size, set this value to xFFFF.
-*
-* BUNDLESMALL -
-* This contains a bit-mask describing the minimum size frame that
-* will be bundled. The default masks the lower 7 bits, which means
-* that any frame less than 128 bytes in length will not be bundled,
-* but will instead immediately generate an interrupt. This does
-* not affect the current bundle in any way. Any frame that is 128
-* bytes or large will be bundled normally. This feature is meant
-* to provide immediate indication of ACK frames in a TCP environment.
-* Customers were seeing poor performance when a machine with CPUSaver
-* enabled was sending but not receiving. The delay introduced when
-* the ACKs were received was enough to reduce total throughput, because
-* the sender would sit idle until the ACK was finally seen.
-*
-* The current default is 0xFF80, which masks out the lower 7 bits.
-* This means that any frame which is x7F (127) bytes or smaller
-* will cause an immediate interrupt. Because this value must be a
-* bit mask, there are only a few valid values that can be used. To
-* turn this feature off, the driver can write the value xFFFF to the
-* lower word of this instruction (in the same way that the other
-* parameters are used). Likewise, a value of 0xF800 (2047) would
-* cause an interrupt to be generated for every frame, because all
-* standard Ethernet frames are <= 2047 bytes in length.
-*************************************************************************/
-
-/* if you wish to disable the ucode functionality, while maintaining the
- * workarounds it provides, set the following defines to:
- * BUNDLESMALL 0
- * BUNDLEMAX 1
- * INTDELAY 1
- */
-#define BUNDLESMALL 1
-#define BUNDLEMAX (u16)6
-#define INTDELAY (u16)1536 /* 0x600 */
-
- /* do not load u-code for ICH devices */
- if (nic->flags & ich)
- goto noloaducode;
-
- /* Search for ucode match against h/w rev_id */
- for (opts = ucode_opts; opts->mac; opts++) {
- int i;
- u32 *ucode = opts->ucode;
- if (nic->mac != opts->mac)
- continue;
-
- /* Insert user-tunable settings */
- ucode[opts->timer_dword] &= 0xFFFF0000;
- ucode[opts->timer_dword] |= INTDELAY;
- ucode[opts->bundle_dword] &= 0xFFFF0000;
- ucode[opts->bundle_dword] |= BUNDLEMAX;
- ucode[opts->min_size_dword] &= 0xFFFF0000;
- ucode[opts->min_size_dword] |= (BUNDLESMALL) ? 0xFFFF : 0xFF80;
-
- for (i = 0; i < UCODE_SIZE; i++)
- cb->u.ucode[i] = cpu_to_le32(ucode[i]);
- cb->command = cpu_to_le16(cb_ucode | cb_el);
- return;
- }
-
-noloaducode:
- cb->command = cpu_to_le16(cb_nop | cb_el);
-}
-
-static inline int e100_exec_cb_wait(struct nic *nic, struct sk_buff *skb,
- void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
-{
- int err = 0, counter = 50;
- struct cb *cb = nic->cb_to_clean;
-
- if ((err = e100_exec_cb(nic, NULL, e100_setup_ucode)))
- DPRINTK(PROBE,ERR, "ucode cmd failed with error %d\n", err);
-
- /* must restart cuc */
- nic->cuc_cmd = cuc_start;
-
- /* wait for completion */
- e100_write_flush(nic);
- udelay(10);
-
- /* wait for possibly (ouch) 500ms */
- while (!(cb->status & cpu_to_le16(cb_complete))) {
- msleep(10);
- if (!--counter) break;
- }
-
- /* ack any interupts, something could have been set */
- writeb(~0, &nic->csr->scb.stat_ack);
-
- /* if the command failed, or is not OK, notify and return */
- if (!counter || !(cb->status & cpu_to_le16(cb_ok))) {
- DPRINTK(PROBE,ERR, "ucode load failed\n");
- err = -EPERM;
- }
-
- return err;
-}
-
-static void e100_setup_iaaddr(struct nic *nic, struct cb *cb,
- struct sk_buff *skb)
-{
- cb->command = cpu_to_le16(cb_iaaddr);
- memcpy(cb->u.iaaddr, nic->netdev->dev_addr, ETH_ALEN);
-}
-
-static void e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- cb->command = cpu_to_le16(cb_dump);
- cb->u.dump_buffer_addr = cpu_to_le32(nic->dma_addr +
- offsetof(struct mem, dump_buf));
-}
-
-#define NCONFIG_AUTO_SWITCH 0x0080
-#define MII_NSC_CONG MII_RESV1
-#define NSC_CONG_ENABLE 0x0100
-#define NSC_CONG_TXREADY 0x0400
-#define ADVERTISE_FC_SUPPORTED 0x0400
-static int e100_phy_init(struct nic *nic)
-{
- struct net_device *netdev = nic->netdev;
- u32 addr;
- u16 bmcr, stat, id_lo, id_hi, cong;
-
- /* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
- for(addr = 0; addr < 32; addr++) {
- nic->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
- bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR);
- stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
- stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
- if(!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
- break;
- }
- DPRINTK(HW, DEBUG, "phy_addr = %d\n", nic->mii.phy_id);
- if(addr == 32)
- return -EAGAIN;
-
- /* Selected the phy and isolate the rest */
- for(addr = 0; addr < 32; addr++) {
- if(addr != nic->mii.phy_id) {
- mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE);
- } else {
- bmcr = mdio_read(netdev, addr, MII_BMCR);
- mdio_write(netdev, addr, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
- }
- }
-
- /* Get phy ID */
- id_lo = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID1);
- id_hi = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID2);
- nic->phy = (u32)id_hi << 16 | (u32)id_lo;
- DPRINTK(HW, DEBUG, "phy ID = 0x%08X\n", nic->phy);
-
- /* Handle National tx phys */
-#define NCS_PHY_MODEL_MASK 0xFFF0FFFF
- if((nic->phy & NCS_PHY_MODEL_MASK) == phy_nsc_tx) {
- /* Disable congestion control */
- cong = mdio_read(netdev, nic->mii.phy_id, MII_NSC_CONG);
- cong |= NSC_CONG_TXREADY;
- cong &= ~NSC_CONG_ENABLE;
- mdio_write(netdev, nic->mii.phy_id, MII_NSC_CONG, cong);
- }
-
- if((nic->mac >= mac_82550_D102) || ((nic->flags & ich) &&
- (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000))) {
- /* enable/disable MDI/MDI-X auto-switching.
- MDI/MDI-X auto-switching is disabled for 82551ER/QM chips */
- if((nic->mac == mac_82551_E) || (nic->mac == mac_82551_F) ||
- (nic->mac == mac_82551_10) || (nic->mii.force_media) ||
- !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))
- mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, 0);
- else
- mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, NCONFIG_AUTO_SWITCH);
- }
-
- return 0;
-}
-
-static int e100_hw_init(struct nic *nic)
-{
- int err;
-
- e100_hw_reset(nic);
-
- DPRINTK(HW, ERR, "e100_hw_init\n");
- if(!in_interrupt() && (err = e100_self_test(nic)))
- return err;
-
- if((err = e100_phy_init(nic)))
- return err;
- if((err = e100_exec_cmd(nic, cuc_load_base, 0)))
- return err;
- if((err = e100_exec_cmd(nic, ruc_load_base, 0)))
- return err;
- if ((err = e100_exec_cb_wait(nic, NULL, e100_setup_ucode)))
- return err;
- if((err = e100_exec_cb(nic, NULL, e100_configure)))
- return err;
- if((err = e100_exec_cb(nic, NULL, e100_setup_iaaddr)))
- return err;
- if((err = e100_exec_cmd(nic, cuc_dump_addr,
- nic->dma_addr + offsetof(struct mem, stats))))
- return err;
- if((err = e100_exec_cmd(nic, cuc_dump_reset, 0)))
- return err;
-
- e100_disable_irq(nic);
-
- return 0;
-}
-
-static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
-{
- struct net_device *netdev = nic->netdev;
- struct dev_mc_list *list = netdev->mc_list;
- u16 i, count = min(netdev->mc_count, E100_MAX_MULTICAST_ADDRS);
-
- cb->command = cpu_to_le16(cb_multi);
- cb->u.multi.count = cpu_to_le16(count * ETH_ALEN);
- for(i = 0; list && i < count; i++, list = list->next)
- memcpy(&cb->u.multi.addr[i*ETH_ALEN], &list->dmi_addr,
- ETH_ALEN);
-}
-
-static void e100_set_multicast_list(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- DPRINTK(HW, DEBUG, "mc_count=%d, flags=0x%04X\n",
- netdev->mc_count, netdev->flags);
-
- if(netdev->flags & IFF_PROMISC)
- nic->flags |= promiscuous;
- else
- nic->flags &= ~promiscuous;
-
- if(netdev->flags & IFF_ALLMULTI ||
- netdev->mc_count > E100_MAX_MULTICAST_ADDRS)
- nic->flags |= multicast_all;
- else
- nic->flags &= ~multicast_all;
-
- e100_exec_cb(nic, NULL, e100_configure);
- e100_exec_cb(nic, NULL, e100_multi);
-}
-
-static void e100_update_stats(struct nic *nic)
-{
- struct net_device_stats *ns = &nic->net_stats;
- struct stats *s = &nic->mem->stats;
- u32 *complete = (nic->mac < mac_82558_D101_A4) ? &s->fc_xmt_pause :
- (nic->mac < mac_82559_D101M) ? (u32 *)&s->xmt_tco_frames :
- &s->complete;
-
- /* Device's stats reporting may take several microseconds to
- * complete, so where always waiting for results of the
- * previous command. */
-
- if(*complete == le32_to_cpu(cuc_dump_reset_complete)) {
- *complete = 0;
- nic->tx_frames = le32_to_cpu(s->tx_good_frames);
- nic->tx_collisions = le32_to_cpu(s->tx_total_collisions);
- ns->tx_aborted_errors += le32_to_cpu(s->tx_max_collisions);
- ns->tx_window_errors += le32_to_cpu(s->tx_late_collisions);
- ns->tx_carrier_errors += le32_to_cpu(s->tx_lost_crs);
- ns->tx_fifo_errors += le32_to_cpu(s->tx_underruns);
- ns->collisions += nic->tx_collisions;
- ns->tx_errors += le32_to_cpu(s->tx_max_collisions) +
- le32_to_cpu(s->tx_lost_crs);
- ns->rx_length_errors += le32_to_cpu(s->rx_short_frame_errors) +
- nic->rx_over_length_errors;
- ns->rx_crc_errors += le32_to_cpu(s->rx_crc_errors);
- ns->rx_frame_errors += le32_to_cpu(s->rx_alignment_errors);
- ns->rx_over_errors += le32_to_cpu(s->rx_overrun_errors);
- ns->rx_fifo_errors += le32_to_cpu(s->rx_overrun_errors);
- ns->rx_missed_errors += le32_to_cpu(s->rx_resource_errors);
- ns->rx_errors += le32_to_cpu(s->rx_crc_errors) +
- le32_to_cpu(s->rx_alignment_errors) +
- le32_to_cpu(s->rx_short_frame_errors) +
- le32_to_cpu(s->rx_cdt_errors);
- nic->tx_deferred += le32_to_cpu(s->tx_deferred);
- nic->tx_single_collisions +=
- le32_to_cpu(s->tx_single_collisions);
- nic->tx_multiple_collisions +=
- le32_to_cpu(s->tx_multiple_collisions);
- if(nic->mac >= mac_82558_D101_A4) {
- nic->tx_fc_pause += le32_to_cpu(s->fc_xmt_pause);
- nic->rx_fc_pause += le32_to_cpu(s->fc_rcv_pause);
- nic->rx_fc_unsupported +=
- le32_to_cpu(s->fc_rcv_unsupported);
- if(nic->mac >= mac_82559_D101M) {
- nic->tx_tco_frames +=
- le16_to_cpu(s->xmt_tco_frames);
- nic->rx_tco_frames +=
- le16_to_cpu(s->rcv_tco_frames);
- }
- }
- }
-
-
- if(e100_exec_cmd(nic, cuc_dump_reset, 0))
- DPRINTK(TX_ERR, DEBUG, "exec cuc_dump_reset failed\n");
-}
-
-static void e100_adjust_adaptive_ifs(struct nic *nic, int speed, int duplex)
-{
- /* Adjust inter-frame-spacing (IFS) between two transmits if
- * we're getting collisions on a half-duplex connection. */
-
- if(duplex == DUPLEX_HALF) {
- u32 prev = nic->adaptive_ifs;
- u32 min_frames = (speed == SPEED_100) ? 1000 : 100;
-
- if((nic->tx_frames / 32 < nic->tx_collisions) &&
- (nic->tx_frames > min_frames)) {
- if(nic->adaptive_ifs < 60)
- nic->adaptive_ifs += 5;
- } else if (nic->tx_frames < min_frames) {
- if(nic->adaptive_ifs >= 5)
- nic->adaptive_ifs -= 5;
- }
- if(nic->adaptive_ifs != prev)
- e100_exec_cb(nic, NULL, e100_configure);
- }
-}
-
-static void e100_watchdog(unsigned long data)
-{
- struct nic *nic = (struct nic *)data;
- struct ethtool_cmd cmd;
-
- DPRINTK(TIMER, DEBUG, "right now = %ld\n", jiffies);
-
- /* mii library handles link maintenance tasks */
-
- mii_ethtool_gset(&nic->mii, &cmd);
-
- if(mii_link_ok(&nic->mii) && !netif_carrier_ok(nic->netdev)) {
- DPRINTK(LINK, INFO, "link up, %sMbps, %s-duplex\n",
- cmd.speed == SPEED_100 ? "100" : "10",
- cmd.duplex == DUPLEX_FULL ? "full" : "half");
- } else if(!mii_link_ok(&nic->mii) && netif_carrier_ok(nic->netdev)) {
- DPRINTK(LINK, INFO, "link down\n");
- }
-
- mii_check_link(&nic->mii);
-
- /* Software generated interrupt to recover from (rare) Rx
- * allocation failure.
- * Unfortunately have to use a spinlock to not re-enable interrupts
- * accidentally, due to hardware that shares a register between the
- * interrupt mask bit and the SW Interrupt generation bit */
- spin_lock_irq(&nic->cmd_lock);
- writeb(readb(&nic->csr->scb.cmd_hi) | irq_sw_gen,&nic->csr->scb.cmd_hi);
- e100_write_flush(nic);
- spin_unlock_irq(&nic->cmd_lock);
-
- e100_update_stats(nic);
- e100_adjust_adaptive_ifs(nic, cmd.speed, cmd.duplex);
-
- if(nic->mac <= mac_82557_D100_C)
- /* Issue a multicast command to workaround a 557 lock up */
- e100_set_multicast_list(nic->netdev);
-
- if(nic->flags & ich && cmd.speed==SPEED_10 && cmd.duplex==DUPLEX_HALF)
- /* Need SW workaround for ICH[x] 10Mbps/half duplex Tx hang. */
- nic->flags |= ich_10h_workaround;
- else
- nic->flags &= ~ich_10h_workaround;
-
- mod_timer(&nic->watchdog, jiffies + E100_WATCHDOG_PERIOD);
-}
-
-static void e100_xmit_prepare(struct nic *nic, struct cb *cb,
- struct sk_buff *skb)
-{
- cb->command = nic->tx_command;
- /* interrupt every 16 packets regardless of delay */
- if((nic->cbs_avail & ~15) == nic->cbs_avail)
- cb->command |= cpu_to_le16(cb_i);
- cb->u.tcb.tbd_array = cb->dma_addr + offsetof(struct cb, u.tcb.tbd);
- cb->u.tcb.tcb_byte_count = 0;
- cb->u.tcb.threshold = nic->tx_threshold;
- cb->u.tcb.tbd_count = 1;
- cb->u.tcb.tbd.buf_addr = cpu_to_le32(pci_map_single(nic->pdev,
- skb->data, skb->len, PCI_DMA_TODEVICE));
- /* check for mapping failure? */
- cb->u.tcb.tbd.size = cpu_to_le16(skb->len);
-}
-
-static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- int err;
-
- if(nic->flags & ich_10h_workaround) {
- /* SW workaround for ICH[x] 10Mbps/half duplex Tx hang.
- Issue a NOP command followed by a 1us delay before
- issuing the Tx command. */
- if(e100_exec_cmd(nic, cuc_nop, 0))
- DPRINTK(TX_ERR, DEBUG, "exec cuc_nop failed\n");
- udelay(1);
- }
-
- err = e100_exec_cb(nic, skb, e100_xmit_prepare);
-
- switch(err) {
- case -ENOSPC:
- /* We queued the skb, but now we're out of space. */
- DPRINTK(TX_ERR, DEBUG, "No space for CB\n");
- netif_stop_queue(netdev);
- break;
- case -ENOMEM:
- /* This is a hard error - log it. */
- DPRINTK(TX_ERR, DEBUG, "Out of Tx resources, returning skb\n");
- netif_stop_queue(netdev);
- return 1;
- }
-
- netdev->trans_start = jiffies;
- return 0;
-}
-
-static int e100_tx_clean(struct nic *nic)
-{
- struct cb *cb;
- int tx_cleaned = 0;
-
- spin_lock(&nic->cb_lock);
-
- DPRINTK(TX_DONE, DEBUG, "cb->status = 0x%04X\n",
- nic->cb_to_clean->status);
-
- /* Clean CBs marked complete */
- for(cb = nic->cb_to_clean;
- cb->status & cpu_to_le16(cb_complete);
- cb = nic->cb_to_clean = cb->next) {
- if(likely(cb->skb != NULL)) {
- nic->net_stats.tx_packets++;
- nic->net_stats.tx_bytes += cb->skb->len;
-
- pci_unmap_single(nic->pdev,
- le32_to_cpu(cb->u.tcb.tbd.buf_addr),
- le16_to_cpu(cb->u.tcb.tbd.size),
- PCI_DMA_TODEVICE);
- dev_kfree_skb_any(cb->skb);
- cb->skb = NULL;
- tx_cleaned = 1;
- }
- cb->status = 0;
- nic->cbs_avail++;
- }
-
- spin_unlock(&nic->cb_lock);
-
- /* Recover from running out of Tx resources in xmit_frame */
- if(unlikely(tx_cleaned && netif_queue_stopped(nic->netdev)))
- netif_wake_queue(nic->netdev);
-
- return tx_cleaned;
-}
-
-static void e100_clean_cbs(struct nic *nic)
-{
- if(nic->cbs) {
- while(nic->cbs_avail != nic->params.cbs.count) {
- struct cb *cb = nic->cb_to_clean;
- if(cb->skb) {
- pci_unmap_single(nic->pdev,
- le32_to_cpu(cb->u.tcb.tbd.buf_addr),
- le16_to_cpu(cb->u.tcb.tbd.size),
- PCI_DMA_TODEVICE);
- dev_kfree_skb(cb->skb);
- }
- nic->cb_to_clean = nic->cb_to_clean->next;
- nic->cbs_avail++;
- }
- pci_free_consistent(nic->pdev,
- sizeof(struct cb) * nic->params.cbs.count,
- nic->cbs, nic->cbs_dma_addr);
- nic->cbs = NULL;
- nic->cbs_avail = 0;
- }
- nic->cuc_cmd = cuc_start;
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean =
- nic->cbs;
-}
-
-static int e100_alloc_cbs(struct nic *nic)
-{
- struct cb *cb;
- unsigned int i, count = nic->params.cbs.count;
-
- nic->cuc_cmd = cuc_start;
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = NULL;
- nic->cbs_avail = 0;
-
- nic->cbs = pci_alloc_consistent(nic->pdev,
- sizeof(struct cb) * count, &nic->cbs_dma_addr);
- if(!nic->cbs)
- return -ENOMEM;
-
- for(cb = nic->cbs, i = 0; i < count; cb++, i++) {
- cb->next = (i + 1 < count) ? cb + 1 : nic->cbs;
- cb->prev = (i == 0) ? nic->cbs + count - 1 : cb - 1;
-
- cb->dma_addr = nic->cbs_dma_addr + i * sizeof(struct cb);
- cb->link = cpu_to_le32(nic->cbs_dma_addr +
- ((i+1) % count) * sizeof(struct cb));
- cb->skb = NULL;
- }
-
- nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = nic->cbs;
- nic->cbs_avail = count;
-
- return 0;
-}
-
-static inline void e100_start_receiver(struct nic *nic, struct rx *rx)
-{
- if(!nic->rxs) return;
- if(RU_SUSPENDED != nic->ru_running) return;
-
- /* handle init time starts */
- if(!rx) rx = nic->rxs;
-
- /* (Re)start RU if suspended or idle and RFA is non-NULL */
- if(rx->skb) {
- e100_exec_cmd(nic, ruc_start, rx->dma_addr);
- nic->ru_running = RU_RUNNING;
- }
-}
-
-#define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN)
-static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
-{
- if(!(rx->skb = dev_alloc_skb(RFD_BUF_LEN + NET_IP_ALIGN)))
- return -ENOMEM;
-
- /* Align, init, and map the RFD. */
- rx->skb->dev = nic->netdev;
- skb_reserve(rx->skb, NET_IP_ALIGN);
- memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
- rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
- RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
-
- if(pci_dma_mapping_error(rx->dma_addr)) {
- dev_kfree_skb_any(rx->skb);
- rx->skb = NULL;
- rx->dma_addr = 0;
- return -ENOMEM;
- }
-
- /* Link the RFD to end of RFA by linking previous RFD to
- * this one, and clearing EL bit of previous. */
- if(rx->prev->skb) {
- struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data;
- put_unaligned(cpu_to_le32(rx->dma_addr),
- (u32 *)&prev_rfd->link);
- wmb();
- prev_rfd->command &= ~cpu_to_le16(cb_el);
- pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr,
- sizeof(struct rfd), PCI_DMA_TODEVICE);
- }
-
- return 0;
-}
-
-static int e100_rx_indicate(struct nic *nic, struct rx *rx,
- unsigned int *work_done, unsigned int work_to_do)
-{
- struct sk_buff *skb = rx->skb;
- struct rfd *rfd = (struct rfd *)skb->data;
- u16 rfd_status, actual_size;
-
- if(unlikely(work_done && *work_done >= work_to_do))
- return -EAGAIN;
-
- /* Need to sync before taking a peek at cb_complete bit */
- pci_dma_sync_single_for_cpu(nic->pdev, rx->dma_addr,
- sizeof(struct rfd), PCI_DMA_FROMDEVICE);
- rfd_status = le16_to_cpu(rfd->status);
-
- DPRINTK(RX_STATUS, DEBUG, "status=0x%04X\n", rfd_status);
-
- /* If data isn't ready, nothing to indicate */
- if(unlikely(!(rfd_status & cb_complete)))
- return -ENODATA;
-
- /* Get actual data size */
- actual_size = le16_to_cpu(rfd->actual_size) & 0x3FFF;
- if(unlikely(actual_size > RFD_BUF_LEN - sizeof(struct rfd)))
- actual_size = RFD_BUF_LEN - sizeof(struct rfd);
-
- /* Get data */
- pci_unmap_single(nic->pdev, rx->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
-
- /* this allows for a fast restart without re-enabling interrupts */
- if(le16_to_cpu(rfd->command) & cb_el)
- nic->ru_running = RU_SUSPENDED;
-
- /* Pull off the RFD and put the actual data (minus eth hdr) */
- skb_reserve(skb, sizeof(struct rfd));
- skb_put(skb, actual_size);
- skb->protocol = eth_type_trans(skb, nic->netdev);
-
- if(unlikely(!(rfd_status & cb_ok))) {
- /* Don't indicate if hardware indicates errors */
- dev_kfree_skb_any(skb);
- } else if(actual_size > ETH_DATA_LEN + VLAN_ETH_HLEN) {
- /* Don't indicate oversized frames */
- nic->rx_over_length_errors++;
- dev_kfree_skb_any(skb);
- } else {
- nic->net_stats.rx_packets++;
- nic->net_stats.rx_bytes += actual_size;
- nic->netdev->last_rx = jiffies;
- netif_receive_skb(skb);
- if(work_done)
- (*work_done)++;
- }
-
- rx->skb = NULL;
-
- return 0;
-}
-
-static void e100_rx_clean(struct nic *nic, unsigned int *work_done,
- unsigned int work_to_do)
-{
- struct rx *rx;
- int restart_required = 0;
- struct rx *rx_to_start = NULL;
-
- /* are we already rnr? then pay attention!!! this ensures that
- * the state machine progression never allows a start with a
- * partially cleaned list, avoiding a race between hardware
- * and rx_to_clean when in NAPI mode */
- if(RU_SUSPENDED == nic->ru_running)
- restart_required = 1;
-
- /* Indicate newly arrived packets */
- for(rx = nic->rx_to_clean; rx->skb; rx = nic->rx_to_clean = rx->next) {
- int err = e100_rx_indicate(nic, rx, work_done, work_to_do);
- if(-EAGAIN == err) {
- /* hit quota so have more work to do, restart once
- * cleanup is complete */
- restart_required = 0;
- break;
- } else if(-ENODATA == err)
- break; /* No more to clean */
- }
-
- /* save our starting point as the place we'll restart the receiver */
- if(restart_required)
- rx_to_start = nic->rx_to_clean;
-
- /* Alloc new skbs to refill list */
- for(rx = nic->rx_to_use; !rx->skb; rx = nic->rx_to_use = rx->next) {
- if(unlikely(e100_rx_alloc_skb(nic, rx)))
- break; /* Better luck next time (see watchdog) */
- }
-
- if(restart_required) {
- // ack the rnr?
- writeb(stat_ack_rnr, &nic->csr->scb.stat_ack);
- e100_start_receiver(nic, rx_to_start);
- if(work_done)
- (*work_done)++;
- }
-}
-
-static void e100_rx_clean_list(struct nic *nic)
-{
- struct rx *rx;
- unsigned int i, count = nic->params.rfds.count;
-
- nic->ru_running = RU_UNINITIALIZED;
-
- if(nic->rxs) {
- for(rx = nic->rxs, i = 0; i < count; rx++, i++) {
- if(rx->skb) {
- pci_unmap_single(nic->pdev, rx->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(rx->skb);
- }
- }
- kfree(nic->rxs);
- nic->rxs = NULL;
- }
-
- nic->rx_to_use = nic->rx_to_clean = NULL;
-}
-
-static int e100_rx_alloc_list(struct nic *nic)
-{
- struct rx *rx;
- unsigned int i, count = nic->params.rfds.count;
-
- nic->rx_to_use = nic->rx_to_clean = NULL;
- nic->ru_running = RU_UNINITIALIZED;
-
- if(!(nic->rxs = kmalloc(sizeof(struct rx) * count, GFP_ATOMIC)))
- return -ENOMEM;
- memset(nic->rxs, 0, sizeof(struct rx) * count);
-
- for(rx = nic->rxs, i = 0; i < count; rx++, i++) {
- rx->next = (i + 1 < count) ? rx + 1 : nic->rxs;
- rx->prev = (i == 0) ? nic->rxs + count - 1 : rx - 1;
- if(e100_rx_alloc_skb(nic, rx)) {
- e100_rx_clean_list(nic);
- return -ENOMEM;
- }
- }
-
- nic->rx_to_use = nic->rx_to_clean = nic->rxs;
- nic->ru_running = RU_SUSPENDED;
-
- return 0;
-}
-
-static irqreturn_t e100_intr(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct net_device *netdev = dev_id;
- struct nic *nic = netdev_priv(netdev);
- u8 stat_ack = readb(&nic->csr->scb.stat_ack);
-
- DPRINTK(INTR, DEBUG, "stat_ack = 0x%02X\n", stat_ack);
-
- if(stat_ack == stat_ack_not_ours || /* Not our interrupt */
- stat_ack == stat_ack_not_present) /* Hardware is ejected */
- return IRQ_NONE;
-
- /* Ack interrupt(s) */
- writeb(stat_ack, &nic->csr->scb.stat_ack);
-
- /* We hit Receive No Resource (RNR); restart RU after cleaning */
- if(stat_ack & stat_ack_rnr)
- nic->ru_running = RU_SUSPENDED;
-
- if(likely(netif_rx_schedule_prep(netdev))) {
- e100_disable_irq(nic);
- __netif_rx_schedule(netdev);
- }
-
- return IRQ_HANDLED;
-}
-
-static int e100_poll(struct net_device *netdev, int *budget)
-{
- struct nic *nic = netdev_priv(netdev);
- unsigned int work_to_do = min(netdev->quota, *budget);
- unsigned int work_done = 0;
- int tx_cleaned;
-
- e100_rx_clean(nic, &work_done, work_to_do);
- tx_cleaned = e100_tx_clean(nic);
-
- /* If no Rx and Tx cleanup work was done, exit polling mode. */
- if((!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) {
- netif_rx_complete(netdev);
- e100_enable_irq(nic);
- return 0;
- }
-
- *budget -= work_done;
- netdev->quota -= work_done;
-
- return 1;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void e100_netpoll(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- e100_disable_irq(nic);
- e100_intr(nic->pdev->irq, netdev, NULL);
- e100_tx_clean(nic);
- e100_enable_irq(nic);
-}
-#endif
-
-static struct net_device_stats *e100_get_stats(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return &nic->net_stats;
-}
-
-static int e100_set_mac_address(struct net_device *netdev, void *p)
-{
- struct nic *nic = netdev_priv(netdev);
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- e100_exec_cb(nic, NULL, e100_setup_iaaddr);
-
- return 0;
-}
-
-static int e100_change_mtu(struct net_device *netdev, int new_mtu)
-{
- if(new_mtu < ETH_ZLEN || new_mtu > ETH_DATA_LEN)
- return -EINVAL;
- netdev->mtu = new_mtu;
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int e100_asf(struct nic *nic)
-{
- /* ASF can be enabled from eeprom */
- return((nic->pdev->device >= 0x1050) && (nic->pdev->device <= 0x1057) &&
- (nic->eeprom[eeprom_config_asf] & eeprom_asf) &&
- !(nic->eeprom[eeprom_config_asf] & eeprom_gcl) &&
- ((nic->eeprom[eeprom_smbus_addr] & 0xFF) != 0xFE));
-}
-#endif
-
-static int e100_up(struct nic *nic)
-{
- int err;
-
- if((err = e100_rx_alloc_list(nic)))
- return err;
- if((err = e100_alloc_cbs(nic)))
- goto err_rx_clean_list;
- if((err = e100_hw_init(nic)))
- goto err_clean_cbs;
- e100_set_multicast_list(nic->netdev);
- e100_start_receiver(nic, NULL);
- mod_timer(&nic->watchdog, jiffies);
- if((err = request_irq(nic->pdev->irq, e100_intr, IRQF_SHARED,
- nic->netdev->name, nic->netdev)))
- goto err_no_irq;
- netif_wake_queue(nic->netdev);
- netif_poll_enable(nic->netdev);
- /* enable ints _after_ enabling poll, preventing a race between
- * disable ints+schedule */
- e100_enable_irq(nic);
- return 0;
-
-err_no_irq:
- del_timer_sync(&nic->watchdog);
-err_clean_cbs:
- e100_clean_cbs(nic);
-err_rx_clean_list:
- e100_rx_clean_list(nic);
- return err;
-}
-
-static void e100_down(struct nic *nic)
-{
- /* wait here for poll to complete */
- netif_poll_disable(nic->netdev);
- netif_stop_queue(nic->netdev);
- e100_hw_reset(nic);
- free_irq(nic->pdev->irq, nic->netdev);
- del_timer_sync(&nic->watchdog);
- netif_carrier_off(nic->netdev);
- e100_clean_cbs(nic);
- e100_rx_clean_list(nic);
-}
-
-static void e100_tx_timeout(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- /* Reset outside of interrupt context, to avoid request_irq
- * in interrupt context */
- schedule_work(&nic->tx_timeout_task);
-}
-
-static void e100_tx_timeout_task(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n",
- readb(&nic->csr->scb.status));
- e100_down(netdev_priv(netdev));
- e100_up(netdev_priv(netdev));
-}
-
-static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode)
-{
- int err;
- struct sk_buff *skb;
-
- /* Use driver resources to perform internal MAC or PHY
- * loopback test. A single packet is prepared and transmitted
- * in loopback mode, and the test passes if the received
- * packet compares byte-for-byte to the transmitted packet. */
-
- if((err = e100_rx_alloc_list(nic)))
- return err;
- if((err = e100_alloc_cbs(nic)))
- goto err_clean_rx;
-
- /* ICH PHY loopback is broken so do MAC loopback instead */
- if(nic->flags & ich && loopback_mode == lb_phy)
- loopback_mode = lb_mac;
-
- nic->loopback = loopback_mode;
- if((err = e100_hw_init(nic)))
- goto err_loopback_none;
-
- if(loopback_mode == lb_phy)
- mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR,
- BMCR_LOOPBACK);
-
- e100_start_receiver(nic, NULL);
-
- if(!(skb = dev_alloc_skb(ETH_DATA_LEN))) {
- err = -ENOMEM;
- goto err_loopback_none;
- }
- skb_put(skb, ETH_DATA_LEN);
- memset(skb->data, 0xFF, ETH_DATA_LEN);
- e100_xmit_frame(skb, nic->netdev);
-
- msleep(10);
-
- pci_dma_sync_single_for_cpu(nic->pdev, nic->rx_to_clean->dma_addr,
- RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
-
- if(memcmp(nic->rx_to_clean->skb->data + sizeof(struct rfd),
- skb->data, ETH_DATA_LEN))
- err = -EAGAIN;
-
-err_loopback_none:
- mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR, 0);
- nic->loopback = lb_none;
- e100_clean_cbs(nic);
- e100_hw_reset(nic);
-err_clean_rx:
- e100_rx_clean_list(nic);
- return err;
-}
-
-#define MII_LED_CONTROL 0x1B
-static void e100_blink_led(unsigned long data)
-{
- struct nic *nic = (struct nic *)data;
- enum led_state {
- led_on = 0x01,
- led_off = 0x04,
- led_on_559 = 0x05,
- led_on_557 = 0x07,
- };
-
- nic->leds = (nic->leds & led_on) ? led_off :
- (nic->mac < mac_82559_D101M) ? led_on_557 : led_on_559;
- mdio_write(nic->netdev, nic->mii.phy_id, MII_LED_CONTROL, nic->leds);
- mod_timer(&nic->blink_timer, jiffies + HZ / 4);
-}
-
-static int e100_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_ethtool_gset(&nic->mii, cmd);
-}
-
-static int e100_set_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
-{
- struct nic *nic = netdev_priv(netdev);
- int err;
-
- mdio_write(netdev, nic->mii.phy_id, MII_BMCR, BMCR_RESET);
- err = mii_ethtool_sset(&nic->mii, cmd);
- e100_exec_cb(nic, NULL, e100_configure);
-
- return err;
-}
-
-static void e100_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *info)
-{
- struct nic *nic = netdev_priv(netdev);
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->fw_version, "N/A");
- strcpy(info->bus_info, pci_name(nic->pdev));
-}
-
-static int e100_get_regs_len(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-#define E100_PHY_REGS 0x1C
-#define E100_REGS_LEN 1 + E100_PHY_REGS + \
- sizeof(nic->mem->dump_buf) / sizeof(u32)
- return E100_REGS_LEN * sizeof(u32);
-}
-
-static void e100_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *p)
-{
- struct nic *nic = netdev_priv(netdev);
- u32 *buff = p;
- int i;
-
- regs->version = (1 << 24) | nic->rev_id;
- buff[0] = readb(&nic->csr->scb.cmd_hi) << 24 |
- readb(&nic->csr->scb.cmd_lo) << 16 |
- readw(&nic->csr->scb.status);
- for(i = E100_PHY_REGS; i >= 0; i--)
- buff[1 + E100_PHY_REGS - i] =
- mdio_read(netdev, nic->mii.phy_id, i);
- memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf));
- e100_exec_cb(nic, NULL, e100_dump);
- msleep(10);
- memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf,
- sizeof(nic->mem->dump_buf));
-}
-
-static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct nic *nic = netdev_priv(netdev);
- wol->supported = (nic->mac >= mac_82558_D101_A4) ? WAKE_MAGIC : 0;
- wol->wolopts = (nic->flags & wol_magic) ? WAKE_MAGIC : 0;
-}
-
-static int e100_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
- return -EOPNOTSUPP;
-
- if(wol->wolopts)
- nic->flags |= wol_magic;
- else
- nic->flags &= ~wol_magic;
-
- e100_exec_cb(nic, NULL, e100_configure);
-
- return 0;
-}
-
-static u32 e100_get_msglevel(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return nic->msg_enable;
-}
-
-static void e100_set_msglevel(struct net_device *netdev, u32 value)
-{
- struct nic *nic = netdev_priv(netdev);
- nic->msg_enable = value;
-}
-
-static int e100_nway_reset(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_nway_restart(&nic->mii);
-}
-
-static u32 e100_get_link(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return mii_link_ok(&nic->mii);
-}
-
-static int e100_get_eeprom_len(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return nic->eeprom_wc << 1;
-}
-
-#define E100_EEPROM_MAGIC 0x1234
-static int e100_get_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct nic *nic = netdev_priv(netdev);
-
- eeprom->magic = E100_EEPROM_MAGIC;
- memcpy(bytes, &((u8 *)nic->eeprom)[eeprom->offset], eeprom->len);
-
- return 0;
-}
-
-static int e100_set_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(eeprom->magic != E100_EEPROM_MAGIC)
- return -EINVAL;
-
- memcpy(&((u8 *)nic->eeprom)[eeprom->offset], bytes, eeprom->len);
-
- return e100_eeprom_save(nic, eeprom->offset >> 1,
- (eeprom->len >> 1) + 1);
-}
-
-static void e100_get_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct nic *nic = netdev_priv(netdev);
- struct param_range *rfds = &nic->params.rfds;
- struct param_range *cbs = &nic->params.cbs;
-
- ring->rx_max_pending = rfds->max;
- ring->tx_max_pending = cbs->max;
- ring->rx_mini_max_pending = 0;
- ring->rx_jumbo_max_pending = 0;
- ring->rx_pending = rfds->count;
- ring->tx_pending = cbs->count;
- ring->rx_mini_pending = 0;
- ring->rx_jumbo_pending = 0;
-}
-
-static int e100_set_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
-{
- struct nic *nic = netdev_priv(netdev);
- struct param_range *rfds = &nic->params.rfds;
- struct param_range *cbs = &nic->params.cbs;
-
- if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
- return -EINVAL;
-
- if(netif_running(netdev))
- e100_down(nic);
- rfds->count = max(ring->rx_pending, rfds->min);
- rfds->count = min(rfds->count, rfds->max);
- cbs->count = max(ring->tx_pending, cbs->min);
- cbs->count = min(cbs->count, cbs->max);
- DPRINTK(DRV, INFO, "Ring Param settings: rx: %d, tx %d\n",
- rfds->count, cbs->count);
- if(netif_running(netdev))
- e100_up(nic);
-
- return 0;
-}
-
-static const char e100_gstrings_test[][ETH_GSTRING_LEN] = {
- "Link test (on/offline)",
- "Eeprom test (on/offline)",
- "Self test (offline)",
- "Mac loopback (offline)",
- "Phy loopback (offline)",
-};
-#define E100_TEST_LEN sizeof(e100_gstrings_test) / ETH_GSTRING_LEN
-
-static int e100_diag_test_count(struct net_device *netdev)
-{
- return E100_TEST_LEN;
-}
-
-static void e100_diag_test(struct net_device *netdev,
- struct ethtool_test *test, u64 *data)
-{
- struct ethtool_cmd cmd;
- struct nic *nic = netdev_priv(netdev);
- int i, err;
-
- memset(data, 0, E100_TEST_LEN * sizeof(u64));
- data[0] = !mii_link_ok(&nic->mii);
- data[1] = e100_eeprom_load(nic);
- if(test->flags & ETH_TEST_FL_OFFLINE) {
-
- /* save speed, duplex & autoneg settings */
- err = mii_ethtool_gset(&nic->mii, &cmd);
-
- if(netif_running(netdev))
- e100_down(nic);
- data[2] = e100_self_test(nic);
- data[3] = e100_loopback_test(nic, lb_mac);
- data[4] = e100_loopback_test(nic, lb_phy);
-
- /* restore speed, duplex & autoneg settings */
- err = mii_ethtool_sset(&nic->mii, &cmd);
-
- if(netif_running(netdev))
- e100_up(nic);
- }
- for(i = 0; i < E100_TEST_LEN; i++)
- test->flags |= data[i] ? ETH_TEST_FL_FAILED : 0;
-
- msleep_interruptible(4 * 1000);
-}
-
-static int e100_phys_id(struct net_device *netdev, u32 data)
-{
- struct nic *nic = netdev_priv(netdev);
-
- if(!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
- data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
- mod_timer(&nic->blink_timer, jiffies);
- msleep_interruptible(data * 1000);
- del_timer_sync(&nic->blink_timer);
- mdio_write(netdev, nic->mii.phy_id, MII_LED_CONTROL, 0);
-
- return 0;
-}
-
-static const char e100_gstrings_stats[][ETH_GSTRING_LEN] = {
- "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
- "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
- "rx_length_errors", "rx_over_errors", "rx_crc_errors",
- "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
- "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
- "tx_heartbeat_errors", "tx_window_errors",
- /* device-specific stats */
- "tx_deferred", "tx_single_collisions", "tx_multi_collisions",
- "tx_flow_control_pause", "rx_flow_control_pause",
- "rx_flow_control_unsupported", "tx_tco_packets", "rx_tco_packets",
-};
-#define E100_NET_STATS_LEN 21
-#define E100_STATS_LEN sizeof(e100_gstrings_stats) / ETH_GSTRING_LEN
-
-static int e100_get_stats_count(struct net_device *netdev)
-{
- return E100_STATS_LEN;
-}
-
-static void e100_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct nic *nic = netdev_priv(netdev);
- int i;
-
- for(i = 0; i < E100_NET_STATS_LEN; i++)
- data[i] = ((unsigned long *)&nic->net_stats)[i];
-
- data[i++] = nic->tx_deferred;
- data[i++] = nic->tx_single_collisions;
- data[i++] = nic->tx_multiple_collisions;
- data[i++] = nic->tx_fc_pause;
- data[i++] = nic->rx_fc_pause;
- data[i++] = nic->rx_fc_unsupported;
- data[i++] = nic->tx_tco_frames;
- data[i++] = nic->rx_tco_frames;
-}
-
-static void e100_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
-{
- switch(stringset) {
- case ETH_SS_TEST:
- memcpy(data, *e100_gstrings_test, sizeof(e100_gstrings_test));
- break;
- case ETH_SS_STATS:
- memcpy(data, *e100_gstrings_stats, sizeof(e100_gstrings_stats));
- break;
- }
-}
-
-static struct ethtool_ops e100_ethtool_ops = {
- .get_settings = e100_get_settings,
- .set_settings = e100_set_settings,
- .get_drvinfo = e100_get_drvinfo,
- .get_regs_len = e100_get_regs_len,
- .get_regs = e100_get_regs,
- .get_wol = e100_get_wol,
- .set_wol = e100_set_wol,
- .get_msglevel = e100_get_msglevel,
- .set_msglevel = e100_set_msglevel,
- .nway_reset = e100_nway_reset,
- .get_link = e100_get_link,
- .get_eeprom_len = e100_get_eeprom_len,
- .get_eeprom = e100_get_eeprom,
- .set_eeprom = e100_set_eeprom,
- .get_ringparam = e100_get_ringparam,
- .set_ringparam = e100_set_ringparam,
- .self_test_count = e100_diag_test_count,
- .self_test = e100_diag_test,
- .get_strings = e100_get_strings,
- .phys_id = e100_phys_id,
- .get_stats_count = e100_get_stats_count,
- .get_ethtool_stats = e100_get_ethtool_stats,
- .get_perm_addr = ethtool_op_get_perm_addr,
-};
-
-static int e100_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- struct nic *nic = netdev_priv(netdev);
-
- return generic_mii_ioctl(&nic->mii, if_mii(ifr), cmd, NULL);
-}
-
-static int e100_alloc(struct nic *nic)
-{
- nic->mem = pci_alloc_consistent(nic->pdev, sizeof(struct mem),
- &nic->dma_addr);
- return nic->mem ? 0 : -ENOMEM;
-}
-
-static void e100_free(struct nic *nic)
-{
- if(nic->mem) {
- pci_free_consistent(nic->pdev, sizeof(struct mem),
- nic->mem, nic->dma_addr);
- nic->mem = NULL;
- }
-}
-
-static int e100_open(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- int err = 0;
-
- netif_carrier_off(netdev);
- if((err = e100_up(nic)))
- DPRINTK(IFUP, ERR, "Cannot open interface, aborting.\n");
- return err;
-}
-
-static int e100_close(struct net_device *netdev)
-{
- e100_down(netdev_priv(netdev));
- return 0;
-}
-
-static int __devinit e100_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *netdev;
- struct nic *nic;
- int err;
-
- if(!(netdev = alloc_etherdev(sizeof(struct nic)))) {
- if(((1 << debug) - 1) & NETIF_MSG_PROBE)
- printk(KERN_ERR PFX "Etherdev alloc failed, abort.\n");
- return -ENOMEM;
- }
-
- netdev->open = e100_open;
- netdev->stop = e100_close;
- netdev->hard_start_xmit = e100_xmit_frame;
- netdev->get_stats = e100_get_stats;
- netdev->set_multicast_list = e100_set_multicast_list;
- netdev->set_mac_address = e100_set_mac_address;
- netdev->change_mtu = e100_change_mtu;
- netdev->do_ioctl = e100_do_ioctl;
- SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops);
- netdev->tx_timeout = e100_tx_timeout;
- netdev->watchdog_timeo = E100_WATCHDOG_PERIOD;
- netdev->poll = e100_poll;
- netdev->weight = E100_NAPI_WEIGHT;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- netdev->poll_controller = e100_netpoll;
-#endif
- strcpy(netdev->name, pci_name(pdev));
-
- nic = netdev_priv(netdev);
- nic->netdev = netdev;
- nic->pdev = pdev;
- nic->msg_enable = (1 << debug) - 1;
- pci_set_drvdata(pdev, netdev);
-
- if((err = pci_enable_device(pdev))) {
- DPRINTK(PROBE, ERR, "Cannot enable PCI device, aborting.\n");
- goto err_out_free_dev;
- }
-
- if(!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- DPRINTK(PROBE, ERR, "Cannot find proper PCI device "
- "base address, aborting.\n");
- err = -ENODEV;
- goto err_out_disable_pdev;
- }
-
- if((err = pci_request_regions(pdev, DRV_NAME))) {
- DPRINTK(PROBE, ERR, "Cannot obtain PCI resources, aborting.\n");
- goto err_out_disable_pdev;
- }
-
- if((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
- DPRINTK(PROBE, ERR, "No usable DMA configuration, aborting.\n");
- goto err_out_free_res;
- }
-
- SET_MODULE_OWNER(netdev);
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- nic->csr = ioremap(pci_resource_start(pdev, 0), sizeof(struct csr));
- if(!nic->csr) {
- DPRINTK(PROBE, ERR, "Cannot map device registers, aborting.\n");
- err = -ENOMEM;
- goto err_out_free_res;
- }
-
- if(ent->driver_data)
- nic->flags |= ich;
- else
- nic->flags &= ~ich;
-
- e100_get_defaults(nic);
-
- /* locks must be initialized before calling hw_reset */
- spin_lock_init(&nic->cb_lock);
- spin_lock_init(&nic->cmd_lock);
- spin_lock_init(&nic->mdio_lock);
-
- /* Reset the device before pci_set_master() in case device is in some
- * funky state and has an interrupt pending - hint: we don't have the
- * interrupt handler registered yet. */
- e100_hw_reset(nic);
-
- pci_set_master(pdev);
-
- init_timer(&nic->watchdog);
- nic->watchdog.function = e100_watchdog;
- nic->watchdog.data = (unsigned long)nic;
- init_timer(&nic->blink_timer);
- nic->blink_timer.function = e100_blink_led;
- nic->blink_timer.data = (unsigned long)nic;
-
- INIT_WORK(&nic->tx_timeout_task,
- (void (*)(void *))e100_tx_timeout_task, netdev);
-
- if((err = e100_alloc(nic))) {
- DPRINTK(PROBE, ERR, "Cannot alloc driver memory, aborting.\n");
- goto err_out_iounmap;
- }
-
- if((err = e100_eeprom_load(nic)))
- goto err_out_free;
-
- e100_phy_init(nic);
-
- memcpy(netdev->dev_addr, nic->eeprom, ETH_ALEN);
- memcpy(netdev->perm_addr, nic->eeprom, ETH_ALEN);
- if(!is_valid_ether_addr(netdev->perm_addr)) {
- DPRINTK(PROBE, ERR, "Invalid MAC address from "
- "EEPROM, aborting.\n");
- err = -EAGAIN;
- goto err_out_free;
- }
-
- /* Wol magic packet can be enabled from eeprom */
- if((nic->mac >= mac_82558_D101_A4) &&
- (nic->eeprom[eeprom_id] & eeprom_id_wol))
- nic->flags |= wol_magic;
-
- /* ack any pending wake events, disable PME */
- err = pci_enable_wake(pdev, 0, 0);
- if (err)
- DPRINTK(PROBE, ERR, "Error clearing wake event\n");
-
- strcpy(netdev->name, "eth%d");
- if((err = register_netdev(netdev))) {
- DPRINTK(PROBE, ERR, "Cannot register net device, aborting.\n");
- goto err_out_free;
- }
-
- DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, "
- "MAC addr %02X:%02X:%02X:%02X:%02X:%02X\n",
- (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
- netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2],
- netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]);
-
- return 0;
-
-err_out_free:
- e100_free(nic);
-err_out_iounmap:
- iounmap(nic->csr);
-err_out_free_res:
- pci_release_regions(pdev);
-err_out_disable_pdev:
- pci_disable_device(pdev);
-err_out_free_dev:
- pci_set_drvdata(pdev, NULL);
- free_netdev(netdev);
- return err;
-}
-
-static void __devexit e100_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
-
- if(netdev) {
- struct nic *nic = netdev_priv(netdev);
- unregister_netdev(netdev);
- e100_free(nic);
- iounmap(nic->csr);
- free_netdev(netdev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-#ifdef CONFIG_PM
-static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
- if(netif_running(netdev))
- e100_down(nic);
- e100_hw_reset(nic);
- netif_device_detach(netdev);
-
- pci_save_state(pdev);
- retval = pci_enable_wake(pdev, pci_choose_state(pdev, state),
- nic->flags & (wol_magic | e100_asf(nic)));
- if (retval)
- DPRINTK(PROBE,ERR, "Error enabling wake\n");
- pci_disable_device(pdev);
- retval = pci_set_power_state(pdev, pci_choose_state(pdev, state));
- if (retval)
- DPRINTK(PROBE,ERR, "Error %d setting power state\n", retval);
-
- return 0;
-}
-
-static int e100_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
- retval = pci_set_power_state(pdev, PCI_D0);
- if (retval)
- DPRINTK(PROBE,ERR, "Error waking adapter\n");
- pci_restore_state(pdev);
- /* ack any pending wake events, disable PME */
- retval = pci_enable_wake(pdev, 0, 0);
- if (retval)
- DPRINTK(PROBE,ERR, "Error clearing wake events\n");
-
- netif_device_attach(netdev);
- if(netif_running(netdev))
- e100_up(nic);
-
- return 0;
-}
-#endif
-
-
-static void e100_shutdown(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
- int retval;
-
-#ifdef CONFIG_PM
- retval = pci_enable_wake(pdev, 0, nic->flags & (wol_magic | e100_asf(nic)));
-#else
- retval = pci_enable_wake(pdev, 0, nic->flags & (wol_magic));
-#endif
- if (retval)
- DPRINTK(PROBE,ERR, "Error enabling wake\n");
-}
-
-/* ------------------ PCI Error Recovery infrastructure -------------- */
-/**
- * e100_io_error_detected - called when PCI error is detected.
- * @pdev: Pointer to PCI device
- * @state: The current pci conneection state
- */
-static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
-
- /* Similar to calling e100_down(), but avoids adpater I/O. */
- netdev->stop(netdev);
-
- /* Detach; put netif into state similar to hotplug unplug. */
- netif_poll_enable(netdev);
- netif_device_detach(netdev);
-
- /* Request a slot reset. */
- return PCI_ERS_RESULT_NEED_RESET;
-}
-
-/**
- * e100_io_slot_reset - called after the pci bus has been reset.
- * @pdev: Pointer to PCI device
- *
- * Restart the card from scratch.
- */
-static pci_ers_result_t e100_io_slot_reset(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- if (pci_enable_device(pdev)) {
- printk(KERN_ERR "e100: Cannot re-enable PCI device after reset.\n");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_set_master(pdev);
-
- /* Only one device per card can do a reset */
- if (0 != PCI_FUNC(pdev->devfn))
- return PCI_ERS_RESULT_RECOVERED;
- e100_hw_reset(nic);
- e100_phy_init(nic);
-
- return PCI_ERS_RESULT_RECOVERED;
-}
-
-/**
- * e100_io_resume - resume normal operations
- * @pdev: Pointer to PCI device
- *
- * Resume normal operations after an error recovery
- * sequence has been completed.
- */
-static void e100_io_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- /* ack any pending wake events, disable PME */
- pci_enable_wake(pdev, 0, 0);
-
- netif_device_attach(netdev);
- if (netif_running(netdev)) {
- e100_open(netdev);
- mod_timer(&nic->watchdog, jiffies);
- }
-}
-
-static struct pci_error_handlers e100_err_handler = {
- .error_detected = e100_io_error_detected,
- .slot_reset = e100_io_slot_reset,
- .resume = e100_io_resume,
-};
-
-static struct pci_driver e100_driver = {
- .name = DRV_NAME,
- .id_table = e100_id_table,
- .probe = e100_probe,
- .remove = __devexit_p(e100_remove),
-#ifdef CONFIG_PM
- .suspend = e100_suspend,
- .resume = e100_resume,
-#endif
- .shutdown = e100_shutdown,
- .err_handler = &e100_err_handler,
-};
-
-static int __init e100_init_module(void)
-{
- if(((1 << debug) - 1) & NETIF_MSG_DRV) {
- printk(KERN_INFO PFX "%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
- printk(KERN_INFO PFX "%s\n", DRV_COPYRIGHT);
- }
- return pci_module_init(&e100_driver);
-}
-
-static void __exit e100_cleanup_module(void)
-{
- pci_unregister_driver(&e100_driver);
-}
-
-module_init(e100_init_module);
-module_exit(e100_cleanup_module);