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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-04-07 07:42:33 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-10 20:03:27 -0700
commitdee1ad47f2ee75f5146d83ca757c1b7861c34c3b (patch)
tree47cbdefe3d0f9b729724e378ad6a96eaddfd5fbc /drivers/net/e100.c
parentf7917c009c28c941ba151ee66f04dc7f6a2e1e0b (diff)
intel: Move the Intel wired LAN drivers
Moves the Intel wired LAN drivers into drivers/net/ethernet/intel/ and the necessary Kconfig and Makefile changes. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/e100.c')
-rw-r--r--drivers/net/e100.c3109
1 files changed, 0 insertions, 3109 deletions
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
deleted file mode 100644
index c1352c60c299..000000000000
--- a/drivers/net/e100.c
+++ /dev/null
@@ -1,3109 +0,0 @@
-/*******************************************************************************
-
- Intel PRO/100 Linux driver
- Copyright(c) 1999 - 2006 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope 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.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- The full GNU General Public License is included in this distribution in
- the file called "COPYING".
-
- Contact Information:
- Linux NICS <linux.nics@intel.com>
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- 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. Receive
- *
- * 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.
- *
- * In order to keep updates to the RFD link field from colliding with
- * hardware writes to mark packets complete, we use the feature that
- * hardware will not write to a size 0 descriptor and mark the previous
- * packet as end-of-list (EL). After updating the link, we remove EL
- * and only then restore the size such that hardware may use the
- * previous-to-end RFD.
- *
- * 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
- * scenario 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
- * 2009/06/01 - Andreas Mohr <andi at lisas dot de>
- * - add clean lowlevel I/O emulation for cards with MII-lacking PHYs
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/hardirq.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.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 <linux/firmware.h>
-#include <linux/rtnetlink.h>
-#include <asm/unaligned.h>
-
-
-#define DRV_NAME "e100"
-#define DRV_EXT "-NAPI"
-#define DRV_VERSION "3.5.24-k2"DRV_EXT
-#define DRV_DESCRIPTION "Intel(R) PRO/100 Network Driver"
-#define DRV_COPYRIGHT "Copyright(c) 1999-2006 Intel Corporation"
-
-#define E100_WATCHDOG_PERIOD (2 * HZ)
-#define E100_NAPI_WEIGHT 16
-
-#define FIRMWARE_D101M "e100/d101m_ucode.bin"
-#define FIRMWARE_D101S "e100/d101s_ucode.bin"
-#define FIRMWARE_D102E "e100/d102e_ucode.bin"
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_AUTHOR(DRV_COPYRIGHT);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-MODULE_FIRMWARE(FIRMWARE_D101M);
-MODULE_FIRMWARE(FIRMWARE_D101S);
-MODULE_FIRMWARE(FIRMWARE_D102E);
-
-static int debug = 3;
-static int eeprom_bad_csum_allow = 0;
-static int use_io = 0;
-module_param(debug, int, 0);
-module_param(eeprom_bad_csum_allow, int, 0);
-module_param(use_io, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums");
-MODULE_PARM_DESC(use_io, "Force use of i/o access mode");
-
-#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 DEFINE_PCI_DEVICE_TABLE(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(0x10fe, 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_82552_v = 0xd061004d,
- 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_no_res = 0x08,
- 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_phy_iface = 0x06,
- eeprom_id = 0x0A,
- eeprom_config_asf = 0x0D,
- eeprom_smbus_addr = 0x90,
-};
-
-enum eeprom_cnfg_mdix {
- eeprom_mdix_enabled = 0x0080,
-};
-
-enum eeprom_phy_iface {
- NoSuchPhy = 0,
- I82553AB,
- I82553C,
- I82503,
- DP83840,
- S80C240,
- S80C24,
- I82555,
- DP83840A = 10,
-};
-
-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 {
- __le16 status;
- __le16 command;
- __le32 link;
- __le32 rbd;
- __le16 actual_size;
- __le16 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 {
- __le16 count;
- u8 addr[E100_MAX_MULTICAST_ADDRS * ETH_ALEN + 2/*pad*/];
-};
-
-/* Important: keep total struct u32-aligned */
-#define UCODE_SIZE 134
-struct cb {
- __le16 status;
- __le16 command;
- __le32 link;
- union {
- u8 iaaddr[ETH_ALEN];
- __le32 ucode[UCODE_SIZE];
- struct config config;
- struct multi multi;
- struct {
- u32 tbd_array;
- u16 tcb_byte_count;
- u8 threshold;
- u8 tbd_count;
- struct {
- __le32 buf_addr;
- __le16 size;
- u16 eol;
- } tbd;
- } tcb;
- __le32 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 {
- __le32 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;
- __le32 rx_good_frames, rx_crc_errors, rx_alignment_errors,
- rx_resource_errors, rx_overrun_errors, rx_cdt_errors,
- rx_short_frame_errors;
- __le32 fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported;
- __le16 xmt_tco_frames, rcv_tco_frames;
- __le32 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;
- u16 (*mdio_ctrl)(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data);
-
- 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 napi_struct napi;
- struct cb *cbs;
- struct cb *cb_to_use;
- struct cb *cb_to_send;
- struct cb *cb_to_clean;
- __le16 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 timer_list watchdog;
- struct mii_if_info mii;
- struct work_struct tx_timeout_task;
- enum loopback loopback;
-
- struct mem *mem;
- dma_addr_t dma_addr;
-
- struct pci_pool *cbs_pool;
- 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;
-
- u16 eeprom_wc;
- __le16 eeprom[256];
- spinlock_t mdio_lock;
- const struct firmware *fw;
-};
-
-static inline void e100_write_flush(struct nic *nic)
-{
- /* Flush previous PCI writes through intermediate bridges
- * by doing a benign read */
- (void)ioread8(&nic->csr->scb.status);
-}
-
-static void e100_enable_irq(struct nic *nic)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&nic->cmd_lock, flags);
- iowrite8(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);
- iowrite8(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 */
- iowrite32(selective_reset, &nic->csr->port);
- e100_write_flush(nic); udelay(20);
-
- /* Now fully reset device */
- iowrite32(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;
-
- iowrite32(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) {
- netif_err(nic, hw, nic->netdev,
- "Self-test failed: result=0x%08X\n",
- nic->mem->selftest.result);
- return -ETIMEDOUT;
- }
- if (nic->mem->selftest.signature == 0) {
- netif_err(nic, hw, nic->netdev, "Self-test failed: timed out\n");
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static void e100_eeprom_write(struct nic *nic, u16 addr_len, u16 addr, __le16 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) |
- le16_to_cpu(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 */
- iowrite8(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;
- iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- iowrite8(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
- /* Wait 10 msec for cmd to complete */
- msleep(10);
-
- /* Chip deselect */
- iowrite8(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
- }
-};
-
-/* General technique stolen from the eepro100 driver - very clever */
-static __le16 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 */
- iowrite8(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;
- iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- iowrite8(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 = ioread8(&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 */
- iowrite8(0, &nic->csr->eeprom_ctrl_lo);
- e100_write_flush(nic); udelay(4);
-
- return cpu_to_le16(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 += le16_to_cpu(nic->eeprom[addr]);
- }
-
- /* The checksum, stored in the last word, is calculated such that
- * the sum of words should be 0xBABA */
- if (cpu_to_le16(0xBABA - checksum) != nic->eeprom[nic->eeprom_wc - 1]) {
- netif_err(nic, probe, nic->netdev, "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 += le16_to_cpu(nic->eeprom[addr]);
- nic->eeprom[nic->eeprom_wc - 1] = cpu_to_le16(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(!ioread8(&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))
- iowrite32(dma_addr, &nic->csr->scb.gen_ptr);
- iowrite8(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 int mdio_read(struct net_device *netdev, int addr, int reg)
-{
- struct nic *nic = netdev_priv(netdev);
- return nic->mdio_ctrl(nic, addr, mdi_read, reg, 0);
-}
-
-static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
-{
- struct nic *nic = netdev_priv(netdev);
-
- nic->mdio_ctrl(nic, addr, mdi_write, reg, data);
-}
-
-/* the standard mdio_ctrl() function for usual MII-compliant hardware */
-static u16 mdio_ctrl_hw(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 (ioread32(&nic->csr->mdi_ctrl) & mdi_ready)
- break;
- udelay(20);
- }
- if (unlikely(!i)) {
- netdev_err(nic->netdev, "e100.mdio_ctrl won't go Ready\n");
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- return 0; /* No way to indicate timeout error */
- }
- iowrite32((reg << 16) | (addr << 21) | dir | data, &nic->csr->mdi_ctrl);
-
- for (i = 0; i < 100; i++) {
- udelay(20);
- if ((data_out = ioread32(&nic->csr->mdi_ctrl)) & mdi_ready)
- break;
- }
- spin_unlock_irqrestore(&nic->mdio_lock, flags);
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "%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;
-}
-
-/* slightly tweaked mdio_ctrl() function for phy_82552_v specifics */
-static u16 mdio_ctrl_phy_82552_v(struct nic *nic,
- u32 addr,
- u32 dir,
- u32 reg,
- u16 data)
-{
- if ((reg == MII_BMCR) && (dir == mdi_write)) {
- if (data & (BMCR_ANRESTART | BMCR_ANENABLE)) {
- u16 advert = mdio_read(nic->netdev, nic->mii.phy_id,
- MII_ADVERTISE);
-
- /*
- * Workaround Si issue where sometimes the part will not
- * autoneg to 100Mbps even when advertised.
- */
- if (advert & ADVERTISE_100FULL)
- data |= BMCR_SPEED100 | BMCR_FULLDPLX;
- else if (advert & ADVERTISE_100HALF)
- data |= BMCR_SPEED100;
- }
- }
- return mdio_ctrl_hw(nic, addr, dir, reg, data);
-}
-
-/* Fully software-emulated mdio_ctrl() function for cards without
- * MII-compliant PHYs.
- * For now, this is mainly geared towards 80c24 support; in case of further
- * requirements for other types (i82503, ...?) either extend this mechanism
- * or split it, whichever is cleaner.
- */
-static u16 mdio_ctrl_phy_mii_emulated(struct nic *nic,
- u32 addr,
- u32 dir,
- u32 reg,
- u16 data)
-{
- /* might need to allocate a netdev_priv'ed register array eventually
- * to be able to record state changes, but for now
- * some fully hardcoded register handling ought to be ok I guess. */
-
- if (dir == mdi_read) {
- switch (reg) {
- case MII_BMCR:
- /* Auto-negotiation, right? */
- return BMCR_ANENABLE |
- BMCR_FULLDPLX;
- case MII_BMSR:
- return BMSR_LSTATUS /* for mii_link_ok() */ |
- BMSR_ANEGCAPABLE |
- BMSR_10FULL;
- case MII_ADVERTISE:
- /* 80c24 is a "combo card" PHY, right? */
- return ADVERTISE_10HALF |
- ADVERTISE_10FULL;
- default:
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "%s:addr=%d, reg=%d, data=0x%04X: unimplemented emulation!\n",
- dir == mdi_read ? "READ" : "WRITE",
- addr, reg, data);
- return 0xFFFF;
- }
- } else {
- switch (reg) {
- default:
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "%s:addr=%d, reg=%d, data=0x%04X: unimplemented emulation!\n",
- dir == mdi_read ? "READ" : "WRITE",
- addr, reg, data);
- return 0xFFFF;
- }
- }
-}
-static inline int e100_phy_supports_mii(struct nic *nic)
-{
- /* for now, just check it by comparing whether we
- are using MII software emulation.
- */
- return (nic->mdio_ctrl != mdio_ctrl_phy_mii_emulated);
-}
-
-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 };
-
- /* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
- nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->pdev->revision;
- 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 = 0;
- nic->blank_rfd.rbd = cpu_to_le32(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 */
- if (e100_phy_supports_mii(nic))
- config->mii_mode = 1; /* 1=MII mode, 0=i82503 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 */
- /* Enable TCO in extended config */
- if (nic->mac >= mac_82551_10) {
- config->byte_count = 0x20; /* extended bytes */
- config->rx_d102_mode = 0x1; /* GMRC for TCO */
- }
- } else {
- config->standard_stat_counter = 0x0;
- }
- }
-
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "[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]);
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "[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]);
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "[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]);
-}
-
-/*************************************************************************
-* 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 initial 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 */
-
-/* Initialize firmware */
-static const struct firmware *e100_request_firmware(struct nic *nic)
-{
- const char *fw_name;
- const struct firmware *fw = nic->fw;
- u8 timer, bundle, min_size;
- int err = 0;
-
- /* do not load u-code for ICH devices */
- if (nic->flags & ich)
- return NULL;
-
- /* Search for ucode match against h/w revision */
- if (nic->mac == mac_82559_D101M)
- fw_name = FIRMWARE_D101M;
- else if (nic->mac == mac_82559_D101S)
- fw_name = FIRMWARE_D101S;
- else if (nic->mac == mac_82551_F || nic->mac == mac_82551_10)
- fw_name = FIRMWARE_D102E;
- else /* No ucode on other devices */
- return NULL;
-
- /* If the firmware has not previously been loaded, request a pointer
- * to it. If it was previously loaded, we are reinitializing the
- * adapter, possibly in a resume from hibernate, in which case
- * request_firmware() cannot be used.
- */
- if (!fw)
- err = request_firmware(&fw, fw_name, &nic->pdev->dev);
-
- if (err) {
- netif_err(nic, probe, nic->netdev,
- "Failed to load firmware \"%s\": %d\n",
- fw_name, err);
- return ERR_PTR(err);
- }
-
- /* Firmware should be precisely UCODE_SIZE (words) plus three bytes
- indicating the offsets for BUNDLESMALL, BUNDLEMAX, INTDELAY */
- if (fw->size != UCODE_SIZE * 4 + 3) {
- netif_err(nic, probe, nic->netdev,
- "Firmware \"%s\" has wrong size %zu\n",
- fw_name, fw->size);
- release_firmware(fw);
- return ERR_PTR(-EINVAL);
- }
-
- /* Read timer, bundle and min_size from end of firmware blob */
- timer = fw->data[UCODE_SIZE * 4];
- bundle = fw->data[UCODE_SIZE * 4 + 1];
- min_size = fw->data[UCODE_SIZE * 4 + 2];
-
- if (timer >= UCODE_SIZE || bundle >= UCODE_SIZE ||
- min_size >= UCODE_SIZE) {
- netif_err(nic, probe, nic->netdev,
- "\"%s\" has bogus offset values (0x%x,0x%x,0x%x)\n",
- fw_name, timer, bundle, min_size);
- release_firmware(fw);
- return ERR_PTR(-EINVAL);
- }
-
- /* OK, firmware is validated and ready to use. Save a pointer
- * to it in the nic */
- nic->fw = fw;
- return fw;
-}
-
-static void e100_setup_ucode(struct nic *nic, struct cb *cb,
- struct sk_buff *skb)
-{
- const struct firmware *fw = (void *)skb;
- u8 timer, bundle, min_size;
-
- /* It's not a real skb; we just abused the fact that e100_exec_cb
- will pass it through to here... */
- cb->skb = NULL;
-
- /* firmware is stored as little endian already */
- memcpy(cb->u.ucode, fw->data, UCODE_SIZE * 4);
-
- /* Read timer, bundle and min_size from end of firmware blob */
- timer = fw->data[UCODE_SIZE * 4];
- bundle = fw->data[UCODE_SIZE * 4 + 1];
- min_size = fw->data[UCODE_SIZE * 4 + 2];
-
- /* Insert user-tunable settings in cb->u.ucode */
- cb->u.ucode[timer] &= cpu_to_le32(0xFFFF0000);
- cb->u.ucode[timer] |= cpu_to_le32(INTDELAY);
- cb->u.ucode[bundle] &= cpu_to_le32(0xFFFF0000);
- cb->u.ucode[bundle] |= cpu_to_le32(BUNDLEMAX);
- cb->u.ucode[min_size] &= cpu_to_le32(0xFFFF0000);
- cb->u.ucode[min_size] |= cpu_to_le32((BUNDLESMALL) ? 0xFFFF : 0xFF80);
-
- cb->command = cpu_to_le16(cb_ucode | cb_el);
-}
-
-static inline int e100_load_ucode_wait(struct nic *nic)
-{
- const struct firmware *fw;
- int err = 0, counter = 50;
- struct cb *cb = nic->cb_to_clean;
-
- fw = e100_request_firmware(nic);
- /* If it's NULL, then no ucode is required */
- if (!fw || IS_ERR(fw))
- return PTR_ERR(fw);
-
- if ((err = e100_exec_cb(nic, (void *)fw, e100_setup_ucode)))
- netif_err(nic, probe, nic->netdev,
- "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 interrupts, something could have been set */
- iowrite8(~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))) {
- netif_err(nic, probe, nic->netdev, "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));
-}
-
-static int e100_phy_check_without_mii(struct nic *nic)
-{
- u8 phy_type;
- int without_mii;
-
- phy_type = (nic->eeprom[eeprom_phy_iface] >> 8) & 0x0f;
-
- switch (phy_type) {
- case NoSuchPhy: /* Non-MII PHY; UNTESTED! */
- case I82503: /* Non-MII PHY; UNTESTED! */
- case S80C24: /* Non-MII PHY; tested and working */
- /* paragraph from the FreeBSD driver, "FXP_PHY_80C24":
- * The Seeq 80c24 AutoDUPLEX(tm) Ethernet Interface Adapter
- * doesn't have a programming interface of any sort. The
- * media is sensed automatically based on how the link partner
- * is configured. This is, in essence, manual configuration.
- */
- netif_info(nic, probe, nic->netdev,
- "found MII-less i82503 or 80c24 or other PHY\n");
-
- nic->mdio_ctrl = mdio_ctrl_phy_mii_emulated;
- nic->mii.phy_id = 0; /* is this ok for an MII-less PHY? */
-
- /* these might be needed for certain MII-less cards...
- * nic->flags |= ich;
- * nic->flags |= ich_10h_workaround; */
-
- without_mii = 1;
- break;
- default:
- without_mii = 0;
- break;
- }
- return without_mii;
-}
-
-#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;
- }
- if (addr == 32) {
- /* uhoh, no PHY detected: check whether we seem to be some
- * weird, rare variant which is *known* to not have any MII.
- * But do this AFTER MII checking only, since this does
- * lookup of EEPROM values which may easily be unreliable. */
- if (e100_phy_check_without_mii(nic))
- return 0; /* simply return and hope for the best */
- else {
- /* for unknown cases log a fatal error */
- netif_err(nic, hw, nic->netdev,
- "Failed to locate any known PHY, aborting\n");
- return -EAGAIN;
- }
- } else
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "phy_addr = %d\n", nic->mii.phy_id);
-
- /* 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;
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "phy ID = 0x%08X\n", nic->phy);
-
- /* Select 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 if (nic->phy != phy_82552_v) {
- bmcr = mdio_read(netdev, addr, MII_BMCR);
- mdio_write(netdev, addr, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
- }
- }
- /*
- * Workaround for 82552:
- * Clear the ISOLATE bit on selected phy_id last (mirrored on all
- * other phy_id's) using bmcr value from addr discovery loop above.
- */
- if (nic->phy == phy_82552_v)
- mdio_write(netdev, nic->mii.phy_id, MII_BMCR,
- bmcr & ~BMCR_ISOLATE);
-
- /* 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->phy == phy_82552_v) {
- u16 advert = mdio_read(netdev, nic->mii.phy_id, MII_ADVERTISE);
-
- /* assign special tweaked mdio_ctrl() function */
- nic->mdio_ctrl = mdio_ctrl_phy_82552_v;
-
- /* Workaround Si not advertising flow-control during autoneg */
- advert |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
- mdio_write(netdev, nic->mii.phy_id, MII_ADVERTISE, advert);
-
- /* Reset for the above changes to take effect */
- bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR);
- bmcr |= BMCR_RESET;
- mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr);
- } else if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) &&
- (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) &&
- !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) {
- /* enable/disable MDI/MDI-X auto-switching. */
- mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG,
- nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH);
- }
-
- return 0;
-}
-
-static int e100_hw_init(struct nic *nic)
-{
- int err = 0;
-
- e100_hw_reset(nic);
-
- netif_err(nic, hw, nic->netdev, "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_load_ucode_wait(nic)))
- 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 netdev_hw_addr *ha;
- u16 i, count = min(netdev_mc_count(netdev), E100_MAX_MULTICAST_ADDRS);
-
- cb->command = cpu_to_le16(cb_multi);
- cb->u.multi.count = cpu_to_le16(count * ETH_ALEN);
- i = 0;
- netdev_for_each_mc_addr(ha, netdev) {
- if (i == count)
- break;
- memcpy(&cb->u.multi.addr[i++ * ETH_ALEN], &ha->addr,
- ETH_ALEN);
- }
-}
-
-static void e100_set_multicast_list(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
-
- netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
- "mc_count=%d, flags=0x%04X\n",
- netdev_mc_count(netdev), netdev->flags);
-
- if (netdev->flags & IFF_PROMISC)
- nic->flags |= promiscuous;
- else
- nic->flags &= ~promiscuous;
-
- if (netdev->flags & IFF_ALLMULTI ||
- netdev_mc_count(netdev) > 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 *dev = nic->netdev;
- struct net_device_stats *ns = &dev->stats;
- struct stats *s = &nic->mem->stats;
- __le32 *complete = (nic->mac < mac_82558_D101_A4) ? &s->fc_xmt_pause :
- (nic->mac < mac_82559_D101M) ? (__le32 *)&s->xmt_tco_frames :
- &s->complete;
-
- /* Device's stats reporting may take several microseconds to
- * complete, so we're always waiting for results of the
- * previous command. */
-
- if (*complete == cpu_to_le32(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))
- netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
- "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 = { .cmd = ETHTOOL_GSET };
- u32 speed;
-
- netif_printk(nic, timer, KERN_DEBUG, nic->netdev,
- "right now = %ld\n", jiffies);
-
- /* mii library handles link maintenance tasks */
-
- mii_ethtool_gset(&nic->mii, &cmd);
- speed = ethtool_cmd_speed(&cmd);
-
- if (mii_link_ok(&nic->mii) && !netif_carrier_ok(nic->netdev)) {
- netdev_info(nic->netdev, "NIC Link is Up %u Mbps %s Duplex\n",
- speed == SPEED_100 ? 100 : 10,
- cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
- } else if (!mii_link_ok(&nic->mii) && netif_carrier_ok(nic->netdev)) {
- netdev_info(nic->netdev, "NIC Link is 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);
- iowrite8(ioread8(&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, 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 && 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,
- round_jiffies(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 netdev_tx_t 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))
- netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
- "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. */
- netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
- "No space for CB\n");
- netif_stop_queue(netdev);
- break;
- case -ENOMEM:
- /* This is a hard error - log it. */
- netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
- "Out of Tx resources, returning skb\n");
- netif_stop_queue(netdev);
- return NETDEV_TX_BUSY;
- }
-
- return NETDEV_TX_OK;
-}
-
-static int e100_tx_clean(struct nic *nic)
-{
- struct net_device *dev = nic->netdev;
- struct cb *cb;
- int tx_cleaned = 0;
-
- spin_lock(&nic->cb_lock);
-
- /* Clean CBs marked complete */
- for (cb = nic->cb_to_clean;
- cb->status & cpu_to_le16(cb_complete);
- cb = nic->cb_to_clean = cb->next) {
- rmb(); /* read skb after status */
- netif_printk(nic, tx_done, KERN_DEBUG, nic->netdev,
- "cb[%d]->status = 0x%04X\n",
- (int)(((void*)cb - (void*)nic->cbs)/sizeof(struct cb)),
- cb->status);
-
- if (likely(cb->skb != NULL)) {
- dev->stats.tx_packets++;
- dev->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_pool_free(nic->cbs_pool, 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_pool_alloc(nic->cbs_pool, GFP_KERNEL,
- &nic->cbs_dma_addr);
- if (!nic->cbs)
- return -ENOMEM;
- memset(nic->cbs, 0, count * sizeof(struct cb));
-
- 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));
- }
-
- 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 = netdev_alloc_skb_ip_align(nic->netdev, RFD_BUF_LEN)))
- return -ENOMEM;
-
- /* Init, and map the RFD. */
- skb_copy_to_linear_data(rx->skb, &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(nic->pdev, 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. We are safe to touch the previous RFD because
- * it is protected by the before last buffer's el bit being set */
- if (rx->prev->skb) {
- struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data;
- put_unaligned_le32(rx->dma_addr, &prev_rfd->link);
- pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr,
- sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL);
- }
-
- return 0;
-}
-
-static int e100_rx_indicate(struct nic *nic, struct rx *rx,
- unsigned int *work_done, unsigned int work_to_do)
-{
- struct net_device *dev = nic->netdev;
- 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_BIDIRECTIONAL);
- rfd_status = le16_to_cpu(rfd->status);
-
- netif_printk(nic, rx_status, KERN_DEBUG, nic->netdev,
- "status=0x%04X\n", rfd_status);
- rmb(); /* read size after status bit */
-
- /* If data isn't ready, nothing to indicate */
- if (unlikely(!(rfd_status & cb_complete))) {
- /* If the next buffer has the el bit, but we think the receiver
- * is still running, check to see if it really stopped while
- * we had interrupts off.
- * This allows for a fast restart without re-enabling
- * interrupts */
- if ((le16_to_cpu(rfd->command) & cb_el) &&
- (RU_RUNNING == nic->ru_running))
-
- if (ioread8(&nic->csr->scb.status) & rus_no_res)
- nic->ru_running = RU_SUSPENDED;
- pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr,
- sizeof(struct rfd),
- PCI_DMA_FROMDEVICE);
- 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_BIDIRECTIONAL);
-
- /* If this buffer has the el bit, but we think the receiver
- * is still running, check to see if it really stopped while
- * we had interrupts off.
- * This allows for a fast restart without re-enabling interrupts.
- * This can happen when the RU sees the size change but also sees
- * the el bit set. */
- if ((le16_to_cpu(rfd->command) & cb_el) &&
- (RU_RUNNING == nic->ru_running)) {
-
- if (ioread8(&nic->csr->scb.status) & rus_no_res)
- 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 {
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += actual_size;
- 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, err = 0;
- struct rx *old_before_last_rx, *new_before_last_rx;
- struct rfd *old_before_last_rfd, *new_before_last_rfd;
-
- /* Indicate newly arrived packets */
- for (rx = nic->rx_to_clean; rx->skb; rx = nic->rx_to_clean = rx->next) {
- err = e100_rx_indicate(nic, rx, work_done, work_to_do);
- /* Hit quota or no more to clean */
- if (-EAGAIN == err || -ENODATA == err)
- break;
- }
-
-
- /* On EAGAIN, hit quota so have more work to do, restart once
- * cleanup is complete.
- * Else, 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 (-EAGAIN != err && RU_SUSPENDED == nic->ru_running)
- restart_required = 1;
-
- old_before_last_rx = nic->rx_to_use->prev->prev;
- old_before_last_rfd = (struct rfd *)old_before_last_rx->skb->data;
-
- /* 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) */
- }
-
- new_before_last_rx = nic->rx_to_use->prev->prev;
- if (new_before_last_rx != old_before_last_rx) {
- /* Set the el-bit on the buffer that is before the last buffer.
- * This lets us update the next pointer on the last buffer
- * without worrying about hardware touching it.
- * We set the size to 0 to prevent hardware from touching this
- * buffer.
- * When the hardware hits the before last buffer with el-bit
- * and size of 0, it will RNR interrupt, the RUS will go into
- * the No Resources state. It will not complete nor write to
- * this buffer. */
- new_before_last_rfd =
- (struct rfd *)new_before_last_rx->skb->data;
- new_before_last_rfd->size = 0;
- new_before_last_rfd->command |= cpu_to_le16(cb_el);
- pci_dma_sync_single_for_device(nic->pdev,
- new_before_last_rx->dma_addr, sizeof(struct rfd),
- PCI_DMA_BIDIRECTIONAL);
-
- /* Now that we have a new stopping point, we can clear the old
- * stopping point. We must sync twice to get the proper
- * ordering on the hardware side of things. */
- old_before_last_rfd->command &= ~cpu_to_le16(cb_el);
- pci_dma_sync_single_for_device(nic->pdev,
- old_before_last_rx->dma_addr, sizeof(struct rfd),
- PCI_DMA_BIDIRECTIONAL);
- old_before_last_rfd->size = cpu_to_le16(VLAN_ETH_FRAME_LEN);
- pci_dma_sync_single_for_device(nic->pdev,
- old_before_last_rx->dma_addr, sizeof(struct rfd),
- PCI_DMA_BIDIRECTIONAL);
- }
-
- if (restart_required) {
- // ack the rnr?
- iowrite8(stat_ack_rnr, &nic->csr->scb.stat_ack);
- e100_start_receiver(nic, nic->rx_to_clean);
- 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_BIDIRECTIONAL);
- 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;
- struct rfd *before_last;
-
- nic->rx_to_use = nic->rx_to_clean = NULL;
- nic->ru_running = RU_UNINITIALIZED;
-
- if (!(nic->rxs = kcalloc(count, sizeof(struct rx), GFP_ATOMIC)))
- return -ENOMEM;
-
- 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;
- }
- }
- /* Set the el-bit on the buffer that is before the last buffer.
- * This lets us update the next pointer on the last buffer without
- * worrying about hardware touching it.
- * We set the size to 0 to prevent hardware from touching this buffer.
- * When the hardware hits the before last buffer with el-bit and size
- * of 0, it will RNR interrupt, the RU will go into the No Resources
- * state. It will not complete nor write to this buffer. */
- rx = nic->rxs->prev->prev;
- before_last = (struct rfd *)rx->skb->data;
- before_last->command |= cpu_to_le16(cb_el);
- before_last->size = 0;
- pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr,
- sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL);
-
- 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 net_device *netdev = dev_id;
- struct nic *nic = netdev_priv(netdev);
- u8 stat_ack = ioread8(&nic->csr->scb.stat_ack);
-
- netif_printk(nic, intr, KERN_DEBUG, nic->netdev,
- "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) */
- iowrite8(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(napi_schedule_prep(&nic->napi))) {
- e100_disable_irq(nic);
- __napi_schedule(&nic->napi);
- }
-
- return IRQ_HANDLED;
-}
-
-static int e100_poll(struct napi_struct *napi, int budget)
-{
- struct nic *nic = container_of(napi, struct nic, napi);
- unsigned int work_done = 0;
-
- e100_rx_clean(nic, &work_done, budget);
- e100_tx_clean(nic);
-
- /* If budget not fully consumed, exit the polling mode */
- if (work_done < budget) {
- napi_complete(napi);
- e100_enable_irq(nic);
- }
-
- return work_done;
-}
-
-#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);
- e100_tx_clean(nic);
- e100_enable_irq(nic);
-}
-#endif
-
-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;
-}
-
-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);
-}
-
-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);
- napi_enable(&nic->napi);
- /* 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 */
- napi_disable(&nic->napi);
- 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 work_struct *work)
-{
- struct nic *nic = container_of(work, struct nic, tx_timeout_task);
- struct net_device *netdev = nic->netdev;
-
- netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
- "scb.status=0x%02X\n", ioread8(&nic->csr->scb.status));
-
- rtnl_lock();
- if (netif_running(netdev)) {
- e100_down(netdev_priv(netdev));
- e100_up(netdev_priv(netdev));
- }
- rtnl_unlock();
-}
-
-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 = netdev_alloc_skb(nic->netdev, 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_BIDIRECTIONAL);
-
- 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
-#define E100_82552_LED_OVERRIDE 0x19
-#define E100_82552_LED_ON 0x000F /* LEDTX and LED_RX both on */
-#define E100_82552_LED_OFF 0x000A /* LEDTX and LED_RX both off */
-
-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));
-}
-
-#define E100_PHY_REGS 0x1C
-static int e100_get_regs_len(struct net_device *netdev)
-{
- struct nic *nic = netdev_priv(netdev);
- return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf);
-}
-
-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->pdev->revision;
- buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 |
- ioread8(&nic->csr->scb.cmd_lo) << 16 |
- ioread16(&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 && wol->wolopts != WAKE_MAGIC) ||
- !device_can_wakeup(&nic->pdev->dev))
- return -EOPNOTSUPP;
-
- if (wol->wolopts)
- nic->flags |= wol_magic;
- else
- nic->flags &= ~wol_magic;
-
- device_set_wakeup_enable(&nic->pdev->dev, wol->wolopts);
-
- 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);
- netif_info(nic, drv, nic->netdev, "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 ARRAY_SIZE(e100_gstrings_test)
-
-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_set_phys_id(struct net_device *netdev,
- enum ethtool_phys_id_state state)
-{
- struct nic *nic = netdev_priv(netdev);
- enum led_state {
- led_on = 0x01,
- led_off = 0x04,
- led_on_559 = 0x05,
- led_on_557 = 0x07,
- };
- u16 led_reg = (nic->phy == phy_82552_v) ? E100_82552_LED_OVERRIDE :
- MII_LED_CONTROL;
- u16 leds = 0;
-
- switch (state) {
- case ETHTOOL_ID_ACTIVE:
- return 2;
-
- case ETHTOOL_ID_ON:
- leds = (nic->phy == phy_82552_v) ? E100_82552_LED_ON :
- (nic->mac < mac_82559_D101M) ? led_on_557 : led_on_559;
- break;
-
- case ETHTOOL_ID_OFF:
- leds = (nic->phy == phy_82552_v) ? E100_82552_LED_OFF : led_off;
- break;
-
- case ETHTOOL_ID_INACTIVE:
- break;
- }
-
- mdio_write(netdev, nic->mii.phy_id, led_reg, leds);
- 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 ARRAY_SIZE(e100_gstrings_stats)
-
-static int e100_get_sset_count(struct net_device *netdev, int sset)
-{
- switch (sset) {
- case ETH_SS_TEST:
- return E100_TEST_LEN;
- case ETH_SS_STATS:
- return E100_STATS_LEN;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-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 *)&netdev->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 const 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 = e100_diag_test,
- .get_strings = e100_get_strings,
- .set_phys_id = e100_set_phys_id,
- .get_ethtool_stats = e100_get_ethtool_stats,
- .get_sset_count = e100_get_sset_count,
-};
-
-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)))
- netif_err(nic, ifup, nic->netdev, "Cannot open interface, aborting\n");
- return err;
-}
-
-static int e100_close(struct net_device *netdev)
-{
- e100_down(netdev_priv(netdev));
- return 0;
-}
-
-static const struct net_device_ops e100_netdev_ops = {
- .ndo_open = e100_open,
- .ndo_stop = e100_close,
- .ndo_start_xmit = e100_xmit_frame,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_multicast_list = e100_set_multicast_list,
- .ndo_set_mac_address = e100_set_mac_address,
- .ndo_change_mtu = e100_change_mtu,
- .ndo_do_ioctl = e100_do_ioctl,
- .ndo_tx_timeout = e100_tx_timeout,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = e100_netpoll,
-#endif
-};
-
-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)
- pr_err("Etherdev alloc failed, aborting\n");
- return -ENOMEM;
- }
-
- netdev->netdev_ops = &e100_netdev_ops;
- SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops);
- netdev->watchdog_timeo = E100_WATCHDOG_PERIOD;
- strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
-
- nic = netdev_priv(netdev);
- netif_napi_add(netdev, &nic->napi, e100_poll, E100_NAPI_WEIGHT);
- nic->netdev = netdev;
- nic->pdev = pdev;
- nic->msg_enable = (1 << debug) - 1;
- nic->mdio_ctrl = mdio_ctrl_hw;
- pci_set_drvdata(pdev, netdev);
-
- if ((err = pci_enable_device(pdev))) {
- netif_err(nic, probe, nic->netdev, "Cannot enable PCI device, aborting\n");
- goto err_out_free_dev;
- }
-
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- netif_err(nic, probe, nic->netdev, "Cannot find proper PCI device base address, aborting\n");
- err = -ENODEV;
- goto err_out_disable_pdev;
- }
-
- if ((err = pci_request_regions(pdev, DRV_NAME))) {
- netif_err(nic, probe, nic->netdev, "Cannot obtain PCI resources, aborting\n");
- goto err_out_disable_pdev;
- }
-
- if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
- netif_err(nic, probe, nic->netdev, "No usable DMA configuration, aborting\n");
- goto err_out_free_res;
- }
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- if (use_io)
- netif_info(nic, probe, nic->netdev, "using i/o access mode\n");
-
- nic->csr = pci_iomap(pdev, (use_io ? 1 : 0), sizeof(struct csr));
- if (!nic->csr) {
- netif_err(nic, probe, nic->netdev, "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_WORK(&nic->tx_timeout_task, e100_tx_timeout_task);
-
- if ((err = e100_alloc(nic))) {
- netif_err(nic, probe, nic->netdev, "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)) {
- if (!eeprom_bad_csum_allow) {
- netif_err(nic, probe, nic->netdev, "Invalid MAC address from EEPROM, aborting\n");
- err = -EAGAIN;
- goto err_out_free;
- } else {
- netif_err(nic, probe, nic->netdev, "Invalid MAC address from EEPROM, you MUST configure one.\n");
- }
- }
-
- /* 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;
- device_set_wakeup_enable(&pdev->dev, true);
- }
-
- /* ack any pending wake events, disable PME */
- pci_pme_active(pdev, false);
-
- strcpy(netdev->name, "eth%d");
- if ((err = register_netdev(netdev))) {
- netif_err(nic, probe, nic->netdev, "Cannot register net device, aborting\n");
- goto err_out_free;
- }
- nic->cbs_pool = pci_pool_create(netdev->name,
- nic->pdev,
- nic->params.cbs.max * sizeof(struct cb),
- sizeof(u32),
- 0);
- netif_info(nic, probe, nic->netdev,
- "addr 0x%llx, irq %d, MAC addr %pM\n",
- (unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0),
- pdev->irq, netdev->dev_addr);
-
- return 0;
-
-err_out_free:
- e100_free(nic);
-err_out_iounmap:
- pci_iounmap(pdev, 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);
- pci_iounmap(pdev, nic->csr);
- pci_pool_destroy(nic->cbs_pool);
- free_netdev(netdev);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- }
-}
-
-#define E100_82552_SMARTSPEED 0x14 /* SmartSpeed Ctrl register */
-#define E100_82552_REV_ANEG 0x0200 /* Reverse auto-negotiation */
-#define E100_82552_ANEG_NOW 0x0400 /* Auto-negotiate now */
-static void __e100_shutdown(struct pci_dev *pdev, bool *enable_wake)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- if (netif_running(netdev))
- e100_down(nic);
- netif_device_detach(netdev);
-
- pci_save_state(pdev);
-
- if ((nic->flags & wol_magic) | e100_asf(nic)) {
- /* enable reverse auto-negotiation */
- if (nic->phy == phy_82552_v) {
- u16 smartspeed = mdio_read(netdev, nic->mii.phy_id,
- E100_82552_SMARTSPEED);
-
- mdio_write(netdev, nic->mii.phy_id,
- E100_82552_SMARTSPEED, smartspeed |
- E100_82552_REV_ANEG | E100_82552_ANEG_NOW);
- }
- *enable_wake = true;
- } else {
- *enable_wake = false;
- }
-
- pci_disable_device(pdev);
-}
-
-static int __e100_power_off(struct pci_dev *pdev, bool wake)
-{
- if (wake)
- return pci_prepare_to_sleep(pdev);
-
- pci_wake_from_d3(pdev, false);
- pci_set_power_state(pdev, PCI_D3hot);
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- bool wake;
- __e100_shutdown(pdev, &wake);
- return __e100_power_off(pdev, wake);
-}
-
-static int e100_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct nic *nic = netdev_priv(netdev);
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- /* ack any pending wake events, disable PME */
- pci_enable_wake(pdev, 0, 0);
-
- /* disable reverse auto-negotiation */
- if (nic->phy == phy_82552_v) {
- u16 smartspeed = mdio_read(netdev, nic->mii.phy_id,
- E100_82552_SMARTSPEED);
-
- mdio_write(netdev, nic->mii.phy_id,
- E100_82552_SMARTSPEED,
- smartspeed & ~(E100_82552_REV_ANEG));
- }
-
- netif_device_attach(netdev);
- if (netif_running(netdev))
- e100_up(nic);
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static void e100_shutdown(struct pci_dev *pdev)
-{
- bool wake;
- __e100_shutdown(pdev, &wake);
- if (system_state == SYSTEM_POWER_OFF)
- __e100_power_off(pdev, wake);
-}
-
-/* ------------------ PCI Error Recovery infrastructure -------------- */
-/**
- * e100_io_error_detected - called when PCI error is detected.
- * @pdev: Pointer to PCI device
- * @state: The current pci connection 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);
-
- netif_device_detach(netdev);
-
- if (state == pci_channel_io_perm_failure)
- return PCI_ERS_RESULT_DISCONNECT;
-
- if (netif_running(netdev))
- e100_down(nic);
- pci_disable_device(pdev);
-
- /* 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)) {
- pr_err("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
- /* Power Management hooks */
- .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) {
- pr_info("%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
- pr_info("%s\n", DRV_COPYRIGHT);
- }
- return pci_register_driver(&e100_driver);
-}
-
-static void __exit e100_cleanup_module(void)
-{
- pci_unregister_driver(&e100_driver);
-}
-
-module_init(e100_init_module);
-module_exit(e100_cleanup_module);