fp@1505: /*******************************************************************************
fp@1505:
fp@1505: Intel PRO/100 Linux driver
fp@1505: Copyright(c) 1999 - 2006 Intel Corporation.
fp@1505:
fp@1505: This program is free software; you can redistribute it and/or modify it
fp@1505: under the terms and conditions of the GNU General Public License,
fp@1505: version 2, as published by the Free Software Foundation.
fp@1505:
fp@1505: This program is distributed in the hope it will be useful, but WITHOUT
fp@1505: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
fp@1505: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
fp@1505: more details.
fp@1505:
fp@1505: You should have received a copy of the GNU General Public License along with
fp@1505: this program; if not, write to the Free Software Foundation, Inc.,
fp@1505: 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
fp@1505:
fp@1505: The full GNU General Public License is included in this distribution in
fp@1505: the file called "COPYING".
fp@1505:
fp@1505: Contact Information:
fp@1505: Linux NICS <linux.nics@intel.com>
fp@1505: e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
fp@1505: Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
fp@1505:
fp@1505: *******************************************************************************/
fp@1505:
fp@1505: /*
fp@1505: * e100.c: Intel(R) PRO/100 ethernet driver
fp@1505: *
fp@1505: * (Re)written 2003 by scott.feldman@intel.com. Based loosely on
fp@1505: * original e100 driver, but better described as a munging of
fp@1505: * e100, e1000, eepro100, tg3, 8139cp, and other drivers.
fp@1505: *
fp@1505: * References:
fp@1505: * Intel 8255x 10/100 Mbps Ethernet Controller Family,
fp@1505: * Open Source Software Developers Manual,
fp@1505: * http://sourceforge.net/projects/e1000
fp@1505: *
fp@1505: *
fp@1505: * Theory of Operation
fp@1505: *
fp@1505: * I. General
fp@1505: *
fp@1505: * The driver supports Intel(R) 10/100 Mbps PCI Fast Ethernet
fp@1505: * controller family, which includes the 82557, 82558, 82559, 82550,
fp@1505: * 82551, and 82562 devices. 82558 and greater controllers
fp@1505: * integrate the Intel 82555 PHY. The controllers are used in
fp@1505: * server and client network interface cards, as well as in
fp@1505: * LAN-On-Motherboard (LOM), CardBus, MiniPCI, and ICHx
fp@1505: * configurations. 8255x supports a 32-bit linear addressing
fp@1505: * mode and operates at 33Mhz PCI clock rate.
fp@1505: *
fp@1505: * II. Driver Operation
fp@1505: *
fp@1505: * Memory-mapped mode is used exclusively to access the device's
fp@1505: * shared-memory structure, the Control/Status Registers (CSR). All
fp@1505: * setup, configuration, and control of the device, including queuing
fp@1505: * of Tx, Rx, and configuration commands is through the CSR.
fp@1505: * cmd_lock serializes accesses to the CSR command register. cb_lock
fp@1505: * protects the shared Command Block List (CBL).
fp@1505: *
fp@1505: * 8255x is highly MII-compliant and all access to the PHY go
fp@1505: * through the Management Data Interface (MDI). Consequently, the
fp@1505: * driver leverages the mii.c library shared with other MII-compliant
fp@1505: * devices.
fp@1505: *
fp@1505: * Big- and Little-Endian byte order as well as 32- and 64-bit
fp@1505: * archs are supported. Weak-ordered memory and non-cache-coherent
fp@1505: * archs are supported.
fp@1505: *
fp@1505: * III. Transmit
fp@1505: *
fp@1505: * A Tx skb is mapped and hangs off of a TCB. TCBs are linked
fp@1505: * together in a fixed-size ring (CBL) thus forming the flexible mode
fp@1505: * memory structure. A TCB marked with the suspend-bit indicates
fp@1505: * the end of the ring. The last TCB processed suspends the
fp@1505: * controller, and the controller can be restarted by issue a CU
fp@1505: * resume command to continue from the suspend point, or a CU start
fp@1505: * command to start at a given position in the ring.
fp@1505: *
fp@1505: * Non-Tx commands (config, multicast setup, etc) are linked
fp@1505: * into the CBL ring along with Tx commands. The common structure
fp@1505: * used for both Tx and non-Tx commands is the Command Block (CB).
fp@1505: *
fp@1505: * cb_to_use is the next CB to use for queuing a command; cb_to_clean
fp@1505: * is the next CB to check for completion; cb_to_send is the first
fp@1505: * CB to start on in case of a previous failure to resume. CB clean
fp@1505: * up happens in interrupt context in response to a CU interrupt.
fp@1505: * cbs_avail keeps track of number of free CB resources available.
fp@1505: *
fp@1505: * Hardware padding of short packets to minimum packet size is
fp@1505: * enabled. 82557 pads with 7Eh, while the later controllers pad
fp@1505: * with 00h.
fp@1505: *
fp@1505: * IV. Receive
fp@1505: *
fp@1505: * The Receive Frame Area (RFA) comprises a ring of Receive Frame
fp@1505: * Descriptors (RFD) + data buffer, thus forming the simplified mode
fp@1505: * memory structure. Rx skbs are allocated to contain both the RFD
fp@1505: * and the data buffer, but the RFD is pulled off before the skb is
fp@1505: * indicated. The data buffer is aligned such that encapsulated
fp@1505: * protocol headers are u32-aligned. Since the RFD is part of the
fp@1505: * mapped shared memory, and completion status is contained within
fp@1505: * the RFD, the RFD must be dma_sync'ed to maintain a consistent
fp@1505: * view from software and hardware.
fp@1505: *
fp@1505: * In order to keep updates to the RFD link field from colliding with
fp@1505: * hardware writes to mark packets complete, we use the feature that
fp@1505: * hardware will not write to a size 0 descriptor and mark the previous
fp@1505: * packet as end-of-list (EL). After updating the link, we remove EL
fp@1505: * and only then restore the size such that hardware may use the
fp@1505: * previous-to-end RFD.
fp@1505: *
fp@1505: * Under typical operation, the receive unit (RU) is start once,
fp@1505: * and the controller happily fills RFDs as frames arrive. If
fp@1505: * replacement RFDs cannot be allocated, or the RU goes non-active,
fp@1505: * the RU must be restarted. Frame arrival generates an interrupt,
fp@1505: * and Rx indication and re-allocation happen in the same context,
fp@1505: * therefore no locking is required. A software-generated interrupt
fp@1505: * is generated from the watchdog to recover from a failed allocation
fp@1505: * scenario where all Rx resources have been indicated and none re-
fp@1505: * placed.
fp@1505: *
fp@1505: * V. Miscellaneous
fp@1505: *
fp@1505: * VLAN offloading of tagging, stripping and filtering is not
fp@1505: * supported, but driver will accommodate the extra 4-byte VLAN tag
fp@1505: * for processing by upper layers. Tx/Rx Checksum offloading is not
fp@1505: * supported. Tx Scatter/Gather is not supported. Jumbo Frames is
fp@1505: * not supported (hardware limitation).
fp@1505: *
fp@1505: * MagicPacket(tm) WoL support is enabled/disabled via ethtool.
fp@1505: *
fp@1505: * Thanks to JC (jchapman@katalix.com) for helping with
fp@1505: * testing/troubleshooting the development driver.
fp@1505: *
fp@1505: * TODO:
fp@1505: * o several entry points race with dev->close
fp@1505: * o check for tx-no-resources/stop Q races with tx clean/wake Q
fp@1505: *
fp@1505: * FIXES:
fp@1505: * 2005/12/02 - Michael O'Donnell <Michael.ODonnell at stratus dot com>
fp@1505: * - Stratus87247: protect MDI control register manipulations
fp@1505: */
fp@1505:
fp@1505: #include <linux/module.h>
fp@1505: #include <linux/moduleparam.h>
fp@1505: #include <linux/kernel.h>
fp@1505: #include <linux/types.h>
fp@1505: #include <linux/slab.h>
fp@1505: #include <linux/delay.h>
fp@1505: #include <linux/init.h>
fp@1505: #include <linux/pci.h>
fp@1505: #include <linux/dma-mapping.h>
fp@1505: #include <linux/netdevice.h>
fp@1505: #include <linux/etherdevice.h>
fp@1505: #include <linux/mii.h>
fp@1505: #include <linux/if_vlan.h>
fp@1505: #include <linux/skbuff.h>
fp@1505: #include <linux/ethtool.h>
fp@1505: #include <linux/string.h>
fp@1505: #include <linux/firmware.h>
fp@1505: #include <asm/unaligned.h>
fp@1505:
fp@1505:
fp@1505: #define DRV_NAME "e100"
fp@1505: #define DRV_EXT "-NAPI"
fp@1505: #define DRV_VERSION "3.5.23-k6"DRV_EXT
fp@1505: #define DRV_DESCRIPTION "Intel(R) PRO/100 Network Driver"
fp@1505: #define DRV_COPYRIGHT "Copyright(c) 1999-2006 Intel Corporation"
fp@1505: #define PFX DRV_NAME ": "
fp@1505:
fp@1505: #define E100_WATCHDOG_PERIOD (2 * HZ)
fp@1505: #define E100_NAPI_WEIGHT 16
fp@1505:
fp@1505: #define FIRMWARE_D101M "e100/d101m_ucode.bin"
fp@1505: #define FIRMWARE_D101S "e100/d101s_ucode.bin"
fp@1505: #define FIRMWARE_D102E "e100/d102e_ucode.bin"
fp@1505:
fp@1505: MODULE_DESCRIPTION(DRV_DESCRIPTION);
fp@1505: MODULE_AUTHOR(DRV_COPYRIGHT);
fp@1505: MODULE_LICENSE("GPL");
fp@1505: MODULE_VERSION(DRV_VERSION);
fp@1505: MODULE_FIRMWARE(FIRMWARE_D101M);
fp@1505: MODULE_FIRMWARE(FIRMWARE_D101S);
fp@1505: MODULE_FIRMWARE(FIRMWARE_D102E);
fp@1505:
fp@1505: static int debug = 3;
fp@1505: static int eeprom_bad_csum_allow = 0;
fp@1505: static int use_io = 0;
fp@1505: module_param(debug, int, 0);
fp@1505: module_param(eeprom_bad_csum_allow, int, 0);
fp@1505: module_param(use_io, int, 0);
fp@1505: MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
fp@1505: MODULE_PARM_DESC(eeprom_bad_csum_allow, "Allow bad eeprom checksums");
fp@1505: MODULE_PARM_DESC(use_io, "Force use of i/o access mode");
fp@1505: #define DPRINTK(nlevel, klevel, fmt, args...) \
fp@1505: (void)((NETIF_MSG_##nlevel & nic->msg_enable) && \
fp@1505: printk(KERN_##klevel PFX "%s: %s: " fmt, nic->netdev->name, \
fp@1505: __func__ , ## args))
fp@1505:
fp@1505: #define INTEL_8255X_ETHERNET_DEVICE(device_id, ich) {\
fp@1505: PCI_VENDOR_ID_INTEL, device_id, PCI_ANY_ID, PCI_ANY_ID, \
fp@1505: PCI_CLASS_NETWORK_ETHERNET << 8, 0xFFFF00, ich }
fp@1505: static struct pci_device_id e100_id_table[] = {
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1029, 0),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1030, 0),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1031, 3),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1032, 3),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1033, 3),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1034, 3),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1038, 3),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1039, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x103A, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x103B, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x103C, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x103D, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x103E, 4),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1050, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1051, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1052, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1053, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1054, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1055, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1056, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1057, 5),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1059, 0),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1064, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1065, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1066, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1067, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1068, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1069, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x106A, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x106B, 6),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1091, 7),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1092, 7),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1093, 7),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1094, 7),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1095, 7),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1209, 0),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x1229, 0),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x2449, 2),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x2459, 2),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x245D, 2),
fp@1505: INTEL_8255X_ETHERNET_DEVICE(0x27DC, 7),
fp@1505: { 0, }
fp@1505: };
fp@1505: MODULE_DEVICE_TABLE(pci, e100_id_table);
fp@1505:
fp@1505: enum mac {
fp@1505: mac_82557_D100_A = 0,
fp@1505: mac_82557_D100_B = 1,
fp@1505: mac_82557_D100_C = 2,
fp@1505: mac_82558_D101_A4 = 4,
fp@1505: mac_82558_D101_B0 = 5,
fp@1505: mac_82559_D101M = 8,
fp@1505: mac_82559_D101S = 9,
fp@1505: mac_82550_D102 = 12,
fp@1505: mac_82550_D102_C = 13,
fp@1505: mac_82551_E = 14,
fp@1505: mac_82551_F = 15,
fp@1505: mac_82551_10 = 16,
fp@1505: mac_unknown = 0xFF,
fp@1505: };
fp@1505:
fp@1505: enum phy {
fp@1505: phy_100a = 0x000003E0,
fp@1505: phy_100c = 0x035002A8,
fp@1505: phy_82555_tx = 0x015002A8,
fp@1505: phy_nsc_tx = 0x5C002000,
fp@1505: phy_82562_et = 0x033002A8,
fp@1505: phy_82562_em = 0x032002A8,
fp@1505: phy_82562_ek = 0x031002A8,
fp@1505: phy_82562_eh = 0x017002A8,
fp@1505: phy_unknown = 0xFFFFFFFF,
fp@1505: };
fp@1505:
fp@1505: /* CSR (Control/Status Registers) */
fp@1505: struct csr {
fp@1505: struct {
fp@1505: u8 status;
fp@1505: u8 stat_ack;
fp@1505: u8 cmd_lo;
fp@1505: u8 cmd_hi;
fp@1505: u32 gen_ptr;
fp@1505: } scb;
fp@1505: u32 port;
fp@1505: u16 flash_ctrl;
fp@1505: u8 eeprom_ctrl_lo;
fp@1505: u8 eeprom_ctrl_hi;
fp@1505: u32 mdi_ctrl;
fp@1505: u32 rx_dma_count;
fp@1505: };
fp@1505:
fp@1505: enum scb_status {
fp@1505: rus_no_res = 0x08,
fp@1505: rus_ready = 0x10,
fp@1505: rus_mask = 0x3C,
fp@1505: };
fp@1505:
fp@1505: enum ru_state {
fp@1505: RU_SUSPENDED = 0,
fp@1505: RU_RUNNING = 1,
fp@1505: RU_UNINITIALIZED = -1,
fp@1505: };
fp@1505:
fp@1505: enum scb_stat_ack {
fp@1505: stat_ack_not_ours = 0x00,
fp@1505: stat_ack_sw_gen = 0x04,
fp@1505: stat_ack_rnr = 0x10,
fp@1505: stat_ack_cu_idle = 0x20,
fp@1505: stat_ack_frame_rx = 0x40,
fp@1505: stat_ack_cu_cmd_done = 0x80,
fp@1505: stat_ack_not_present = 0xFF,
fp@1505: stat_ack_rx = (stat_ack_sw_gen | stat_ack_rnr | stat_ack_frame_rx),
fp@1505: stat_ack_tx = (stat_ack_cu_idle | stat_ack_cu_cmd_done),
fp@1505: };
fp@1505:
fp@1505: enum scb_cmd_hi {
fp@1505: irq_mask_none = 0x00,
fp@1505: irq_mask_all = 0x01,
fp@1505: irq_sw_gen = 0x02,
fp@1505: };
fp@1505:
fp@1505: enum scb_cmd_lo {
fp@1505: cuc_nop = 0x00,
fp@1505: ruc_start = 0x01,
fp@1505: ruc_load_base = 0x06,
fp@1505: cuc_start = 0x10,
fp@1505: cuc_resume = 0x20,
fp@1505: cuc_dump_addr = 0x40,
fp@1505: cuc_dump_stats = 0x50,
fp@1505: cuc_load_base = 0x60,
fp@1505: cuc_dump_reset = 0x70,
fp@1505: };
fp@1505:
fp@1505: enum cuc_dump {
fp@1505: cuc_dump_complete = 0x0000A005,
fp@1505: cuc_dump_reset_complete = 0x0000A007,
fp@1505: };
fp@1505:
fp@1505: enum port {
fp@1505: software_reset = 0x0000,
fp@1505: selftest = 0x0001,
fp@1505: selective_reset = 0x0002,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_ctrl_lo {
fp@1505: eesk = 0x01,
fp@1505: eecs = 0x02,
fp@1505: eedi = 0x04,
fp@1505: eedo = 0x08,
fp@1505: };
fp@1505:
fp@1505: enum mdi_ctrl {
fp@1505: mdi_write = 0x04000000,
fp@1505: mdi_read = 0x08000000,
fp@1505: mdi_ready = 0x10000000,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_op {
fp@1505: op_write = 0x05,
fp@1505: op_read = 0x06,
fp@1505: op_ewds = 0x10,
fp@1505: op_ewen = 0x13,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_offsets {
fp@1505: eeprom_cnfg_mdix = 0x03,
fp@1505: eeprom_id = 0x0A,
fp@1505: eeprom_config_asf = 0x0D,
fp@1505: eeprom_smbus_addr = 0x90,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_cnfg_mdix {
fp@1505: eeprom_mdix_enabled = 0x0080,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_id {
fp@1505: eeprom_id_wol = 0x0020,
fp@1505: };
fp@1505:
fp@1505: enum eeprom_config_asf {
fp@1505: eeprom_asf = 0x8000,
fp@1505: eeprom_gcl = 0x4000,
fp@1505: };
fp@1505:
fp@1505: enum cb_status {
fp@1505: cb_complete = 0x8000,
fp@1505: cb_ok = 0x2000,
fp@1505: };
fp@1505:
fp@1505: enum cb_command {
fp@1505: cb_nop = 0x0000,
fp@1505: cb_iaaddr = 0x0001,
fp@1505: cb_config = 0x0002,
fp@1505: cb_multi = 0x0003,
fp@1505: cb_tx = 0x0004,
fp@1505: cb_ucode = 0x0005,
fp@1505: cb_dump = 0x0006,
fp@1505: cb_tx_sf = 0x0008,
fp@1505: cb_cid = 0x1f00,
fp@1505: cb_i = 0x2000,
fp@1505: cb_s = 0x4000,
fp@1505: cb_el = 0x8000,
fp@1505: };
fp@1505:
fp@1505: struct rfd {
fp@1505: __le16 status;
fp@1505: __le16 command;
fp@1505: __le32 link;
fp@1505: __le32 rbd;
fp@1505: __le16 actual_size;
fp@1505: __le16 size;
fp@1505: };
fp@1505:
fp@1505: struct rx {
fp@1505: struct rx *next, *prev;
fp@1505: struct sk_buff *skb;
fp@1505: dma_addr_t dma_addr;
fp@1505: };
fp@1505:
fp@1505: #if defined(__BIG_ENDIAN_BITFIELD)
fp@1505: #define X(a,b) b,a
fp@1505: #else
fp@1505: #define X(a,b) a,b
fp@1505: #endif
fp@1505: struct config {
fp@1505: /*0*/ u8 X(byte_count:6, pad0:2);
fp@1505: /*1*/ u8 X(X(rx_fifo_limit:4, tx_fifo_limit:3), pad1:1);
fp@1505: /*2*/ u8 adaptive_ifs;
fp@1505: /*3*/ u8 X(X(X(X(mwi_enable:1, type_enable:1), read_align_enable:1),
fp@1505: term_write_cache_line:1), pad3:4);
fp@1505: /*4*/ u8 X(rx_dma_max_count:7, pad4:1);
fp@1505: /*5*/ u8 X(tx_dma_max_count:7, dma_max_count_enable:1);
fp@1505: /*6*/ u8 X(X(X(X(X(X(X(late_scb_update:1, direct_rx_dma:1),
fp@1505: tno_intr:1), cna_intr:1), standard_tcb:1), standard_stat_counter:1),
fp@1505: rx_discard_overruns:1), rx_save_bad_frames:1);
fp@1505: /*7*/ u8 X(X(X(X(X(rx_discard_short_frames:1, tx_underrun_retry:2),
fp@1505: pad7:2), rx_extended_rfd:1), tx_two_frames_in_fifo:1),
fp@1505: tx_dynamic_tbd:1);
fp@1505: /*8*/ u8 X(X(mii_mode:1, pad8:6), csma_disabled:1);
fp@1505: /*9*/ u8 X(X(X(X(X(rx_tcpudp_checksum:1, pad9:3), vlan_arp_tco:1),
fp@1505: link_status_wake:1), arp_wake:1), mcmatch_wake:1);
fp@1505: /*10*/ u8 X(X(X(pad10:3, no_source_addr_insertion:1), preamble_length:2),
fp@1505: loopback:2);
fp@1505: /*11*/ u8 X(linear_priority:3, pad11:5);
fp@1505: /*12*/ u8 X(X(linear_priority_mode:1, pad12:3), ifs:4);
fp@1505: /*13*/ u8 ip_addr_lo;
fp@1505: /*14*/ u8 ip_addr_hi;
fp@1505: /*15*/ u8 X(X(X(X(X(X(X(promiscuous_mode:1, broadcast_disabled:1),
fp@1505: wait_after_win:1), pad15_1:1), ignore_ul_bit:1), crc_16_bit:1),
fp@1505: pad15_2:1), crs_or_cdt:1);
fp@1505: /*16*/ u8 fc_delay_lo;
fp@1505: /*17*/ u8 fc_delay_hi;
fp@1505: /*18*/ u8 X(X(X(X(X(rx_stripping:1, tx_padding:1), rx_crc_transfer:1),
fp@1505: rx_long_ok:1), fc_priority_threshold:3), pad18:1);
fp@1505: /*19*/ u8 X(X(X(X(X(X(X(addr_wake:1, magic_packet_disable:1),
fp@1505: fc_disable:1), fc_restop:1), fc_restart:1), fc_reject:1),
fp@1505: full_duplex_force:1), full_duplex_pin:1);
fp@1505: /*20*/ u8 X(X(X(pad20_1:5, fc_priority_location:1), multi_ia:1), pad20_2:1);
fp@1505: /*21*/ u8 X(X(pad21_1:3, multicast_all:1), pad21_2:4);
fp@1505: /*22*/ u8 X(X(rx_d102_mode:1, rx_vlan_drop:1), pad22:6);
fp@1505: u8 pad_d102[9];
fp@1505: };
fp@1505:
fp@1505: #define E100_MAX_MULTICAST_ADDRS 64
fp@1505: struct multi {
fp@1505: __le16 count;
fp@1505: u8 addr[E100_MAX_MULTICAST_ADDRS * ETH_ALEN + 2/*pad*/];
fp@1505: };
fp@1505:
fp@1505: /* Important: keep total struct u32-aligned */
fp@1505: #define UCODE_SIZE 134
fp@1505: struct cb {
fp@1505: __le16 status;
fp@1505: __le16 command;
fp@1505: __le32 link;
fp@1505: union {
fp@1505: u8 iaaddr[ETH_ALEN];
fp@1505: __le32 ucode[UCODE_SIZE];
fp@1505: struct config config;
fp@1505: struct multi multi;
fp@1505: struct {
fp@1505: u32 tbd_array;
fp@1505: u16 tcb_byte_count;
fp@1505: u8 threshold;
fp@1505: u8 tbd_count;
fp@1505: struct {
fp@1505: __le32 buf_addr;
fp@1505: __le16 size;
fp@1505: u16 eol;
fp@1505: } tbd;
fp@1505: } tcb;
fp@1505: __le32 dump_buffer_addr;
fp@1505: } u;
fp@1505: struct cb *next, *prev;
fp@1505: dma_addr_t dma_addr;
fp@1505: struct sk_buff *skb;
fp@1505: };
fp@1505:
fp@1505: enum loopback {
fp@1505: lb_none = 0, lb_mac = 1, lb_phy = 3,
fp@1505: };
fp@1505:
fp@1505: struct stats {
fp@1505: __le32 tx_good_frames, tx_max_collisions, tx_late_collisions,
fp@1505: tx_underruns, tx_lost_crs, tx_deferred, tx_single_collisions,
fp@1505: tx_multiple_collisions, tx_total_collisions;
fp@1505: __le32 rx_good_frames, rx_crc_errors, rx_alignment_errors,
fp@1505: rx_resource_errors, rx_overrun_errors, rx_cdt_errors,
fp@1505: rx_short_frame_errors;
fp@1505: __le32 fc_xmt_pause, fc_rcv_pause, fc_rcv_unsupported;
fp@1505: __le16 xmt_tco_frames, rcv_tco_frames;
fp@1505: __le32 complete;
fp@1505: };
fp@1505:
fp@1505: struct mem {
fp@1505: struct {
fp@1505: u32 signature;
fp@1505: u32 result;
fp@1505: } selftest;
fp@1505: struct stats stats;
fp@1505: u8 dump_buf[596];
fp@1505: };
fp@1505:
fp@1505: struct param_range {
fp@1505: u32 min;
fp@1505: u32 max;
fp@1505: u32 count;
fp@1505: };
fp@1505:
fp@1505: struct params {
fp@1505: struct param_range rfds;
fp@1505: struct param_range cbs;
fp@1505: };
fp@1505:
fp@1505: struct nic {
fp@1505: /* Begin: frequently used values: keep adjacent for cache effect */
fp@1505: u32 msg_enable ____cacheline_aligned;
fp@1505: struct net_device *netdev;
fp@1505: struct pci_dev *pdev;
fp@1505:
fp@1505: struct rx *rxs ____cacheline_aligned;
fp@1505: struct rx *rx_to_use;
fp@1505: struct rx *rx_to_clean;
fp@1505: struct rfd blank_rfd;
fp@1505: enum ru_state ru_running;
fp@1505:
fp@1505: spinlock_t cb_lock ____cacheline_aligned;
fp@1505: spinlock_t cmd_lock;
fp@1505: struct csr __iomem *csr;
fp@1505: enum scb_cmd_lo cuc_cmd;
fp@1505: unsigned int cbs_avail;
fp@1505: struct napi_struct napi;
fp@1505: struct cb *cbs;
fp@1505: struct cb *cb_to_use;
fp@1505: struct cb *cb_to_send;
fp@1505: struct cb *cb_to_clean;
fp@1505: __le16 tx_command;
fp@1505: /* End: frequently used values: keep adjacent for cache effect */
fp@1505:
fp@1505: enum {
fp@1505: ich = (1 << 0),
fp@1505: promiscuous = (1 << 1),
fp@1505: multicast_all = (1 << 2),
fp@1505: wol_magic = (1 << 3),
fp@1505: ich_10h_workaround = (1 << 4),
fp@1505: } flags ____cacheline_aligned;
fp@1505:
fp@1505: enum mac mac;
fp@1505: enum phy phy;
fp@1505: struct params params;
fp@1505: struct timer_list watchdog;
fp@1505: struct timer_list blink_timer;
fp@1505: struct mii_if_info mii;
fp@1505: struct work_struct tx_timeout_task;
fp@1505: enum loopback loopback;
fp@1505:
fp@1505: struct mem *mem;
fp@1505: dma_addr_t dma_addr;
fp@1505:
fp@1505: dma_addr_t cbs_dma_addr;
fp@1505: u8 adaptive_ifs;
fp@1505: u8 tx_threshold;
fp@1505: u32 tx_frames;
fp@1505: u32 tx_collisions;
fp@1505: u32 tx_deferred;
fp@1505: u32 tx_single_collisions;
fp@1505: u32 tx_multiple_collisions;
fp@1505: u32 tx_fc_pause;
fp@1505: u32 tx_tco_frames;
fp@1505:
fp@1505: u32 rx_fc_pause;
fp@1505: u32 rx_fc_unsupported;
fp@1505: u32 rx_tco_frames;
fp@1505: u32 rx_over_length_errors;
fp@1505:
fp@1505: u16 leds;
fp@1505: u16 eeprom_wc;
fp@1505: __le16 eeprom[256];
fp@1505: spinlock_t mdio_lock;
fp@1505: };
fp@1505:
fp@1505: static inline void e100_write_flush(struct nic *nic)
fp@1505: {
fp@1505: /* Flush previous PCI writes through intermediate bridges
fp@1505: * by doing a benign read */
fp@1505: (void)ioread8(&nic->csr->scb.status);
fp@1505: }
fp@1505:
fp@1505: static void e100_enable_irq(struct nic *nic)
fp@1505: {
fp@1505: unsigned long flags;
fp@1505:
fp@1505: spin_lock_irqsave(&nic->cmd_lock, flags);
fp@1505: iowrite8(irq_mask_none, &nic->csr->scb.cmd_hi);
fp@1505: e100_write_flush(nic);
fp@1505: spin_unlock_irqrestore(&nic->cmd_lock, flags);
fp@1505: }
fp@1505:
fp@1505: static void e100_disable_irq(struct nic *nic)
fp@1505: {
fp@1505: unsigned long flags;
fp@1505:
fp@1505: spin_lock_irqsave(&nic->cmd_lock, flags);
fp@1505: iowrite8(irq_mask_all, &nic->csr->scb.cmd_hi);
fp@1505: e100_write_flush(nic);
fp@1505: spin_unlock_irqrestore(&nic->cmd_lock, flags);
fp@1505: }
fp@1505:
fp@1505: static void e100_hw_reset(struct nic *nic)
fp@1505: {
fp@1505: /* Put CU and RU into idle with a selective reset to get
fp@1505: * device off of PCI bus */
fp@1505: iowrite32(selective_reset, &nic->csr->port);
fp@1505: e100_write_flush(nic); udelay(20);
fp@1505:
fp@1505: /* Now fully reset device */
fp@1505: iowrite32(software_reset, &nic->csr->port);
fp@1505: e100_write_flush(nic); udelay(20);
fp@1505:
fp@1505: /* Mask off our interrupt line - it's unmasked after reset */
fp@1505: e100_disable_irq(nic);
fp@1505: }
fp@1505:
fp@1505: static int e100_self_test(struct nic *nic)
fp@1505: {
fp@1505: u32 dma_addr = nic->dma_addr + offsetof(struct mem, selftest);
fp@1505:
fp@1505: /* Passing the self-test is a pretty good indication
fp@1505: * that the device can DMA to/from host memory */
fp@1505:
fp@1505: nic->mem->selftest.signature = 0;
fp@1505: nic->mem->selftest.result = 0xFFFFFFFF;
fp@1505:
fp@1505: iowrite32(selftest | dma_addr, &nic->csr->port);
fp@1505: e100_write_flush(nic);
fp@1505: /* Wait 10 msec for self-test to complete */
fp@1505: msleep(10);
fp@1505:
fp@1505: /* Interrupts are enabled after self-test */
fp@1505: e100_disable_irq(nic);
fp@1505:
fp@1505: /* Check results of self-test */
fp@1505: if (nic->mem->selftest.result != 0) {
fp@1505: DPRINTK(HW, ERR, "Self-test failed: result=0x%08X\n",
fp@1505: nic->mem->selftest.result);
fp@1505: return -ETIMEDOUT;
fp@1505: }
fp@1505: if (nic->mem->selftest.signature == 0) {
fp@1505: DPRINTK(HW, ERR, "Self-test failed: timed out\n");
fp@1505: return -ETIMEDOUT;
fp@1505: }
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static void e100_eeprom_write(struct nic *nic, u16 addr_len, u16 addr, __le16 data)
fp@1505: {
fp@1505: u32 cmd_addr_data[3];
fp@1505: u8 ctrl;
fp@1505: int i, j;
fp@1505:
fp@1505: /* Three cmds: write/erase enable, write data, write/erase disable */
fp@1505: cmd_addr_data[0] = op_ewen << (addr_len - 2);
fp@1505: cmd_addr_data[1] = (((op_write << addr_len) | addr) << 16) |
fp@1505: le16_to_cpu(data);
fp@1505: cmd_addr_data[2] = op_ewds << (addr_len - 2);
fp@1505:
fp@1505: /* Bit-bang cmds to write word to eeprom */
fp@1505: for (j = 0; j < 3; j++) {
fp@1505:
fp@1505: /* Chip select */
fp@1505: iowrite8(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: for (i = 31; i >= 0; i--) {
fp@1505: ctrl = (cmd_addr_data[j] & (1 << i)) ?
fp@1505: eecs | eedi : eecs;
fp@1505: iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: iowrite8(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505: }
fp@1505: /* Wait 10 msec for cmd to complete */
fp@1505: msleep(10);
fp@1505:
fp@1505: /* Chip deselect */
fp@1505: iowrite8(0, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505: }
fp@1505: };
fp@1505:
fp@1505: /* General technique stolen from the eepro100 driver - very clever */
fp@1505: static __le16 e100_eeprom_read(struct nic *nic, u16 *addr_len, u16 addr)
fp@1505: {
fp@1505: u32 cmd_addr_data;
fp@1505: u16 data = 0;
fp@1505: u8 ctrl;
fp@1505: int i;
fp@1505:
fp@1505: cmd_addr_data = ((op_read << *addr_len) | addr) << 16;
fp@1505:
fp@1505: /* Chip select */
fp@1505: iowrite8(eecs | eesk, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: /* Bit-bang to read word from eeprom */
fp@1505: for (i = 31; i >= 0; i--) {
fp@1505: ctrl = (cmd_addr_data & (1 << i)) ? eecs | eedi : eecs;
fp@1505: iowrite8(ctrl, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: iowrite8(ctrl | eesk, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: /* Eeprom drives a dummy zero to EEDO after receiving
fp@1505: * complete address. Use this to adjust addr_len. */
fp@1505: ctrl = ioread8(&nic->csr->eeprom_ctrl_lo);
fp@1505: if (!(ctrl & eedo) && i > 16) {
fp@1505: *addr_len -= (i - 16);
fp@1505: i = 17;
fp@1505: }
fp@1505:
fp@1505: data = (data << 1) | (ctrl & eedo ? 1 : 0);
fp@1505: }
fp@1505:
fp@1505: /* Chip deselect */
fp@1505: iowrite8(0, &nic->csr->eeprom_ctrl_lo);
fp@1505: e100_write_flush(nic); udelay(4);
fp@1505:
fp@1505: return cpu_to_le16(data);
fp@1505: };
fp@1505:
fp@1505: /* Load entire EEPROM image into driver cache and validate checksum */
fp@1505: static int e100_eeprom_load(struct nic *nic)
fp@1505: {
fp@1505: u16 addr, addr_len = 8, checksum = 0;
fp@1505:
fp@1505: /* Try reading with an 8-bit addr len to discover actual addr len */
fp@1505: e100_eeprom_read(nic, &addr_len, 0);
fp@1505: nic->eeprom_wc = 1 << addr_len;
fp@1505:
fp@1505: for (addr = 0; addr < nic->eeprom_wc; addr++) {
fp@1505: nic->eeprom[addr] = e100_eeprom_read(nic, &addr_len, addr);
fp@1505: if (addr < nic->eeprom_wc - 1)
fp@1505: checksum += le16_to_cpu(nic->eeprom[addr]);
fp@1505: }
fp@1505:
fp@1505: /* The checksum, stored in the last word, is calculated such that
fp@1505: * the sum of words should be 0xBABA */
fp@1505: if (cpu_to_le16(0xBABA - checksum) != nic->eeprom[nic->eeprom_wc - 1]) {
fp@1505: DPRINTK(PROBE, ERR, "EEPROM corrupted\n");
fp@1505: if (!eeprom_bad_csum_allow)
fp@1505: return -EAGAIN;
fp@1505: }
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: /* Save (portion of) driver EEPROM cache to device and update checksum */
fp@1505: static int e100_eeprom_save(struct nic *nic, u16 start, u16 count)
fp@1505: {
fp@1505: u16 addr, addr_len = 8, checksum = 0;
fp@1505:
fp@1505: /* Try reading with an 8-bit addr len to discover actual addr len */
fp@1505: e100_eeprom_read(nic, &addr_len, 0);
fp@1505: nic->eeprom_wc = 1 << addr_len;
fp@1505:
fp@1505: if (start + count >= nic->eeprom_wc)
fp@1505: return -EINVAL;
fp@1505:
fp@1505: for (addr = start; addr < start + count; addr++)
fp@1505: e100_eeprom_write(nic, addr_len, addr, nic->eeprom[addr]);
fp@1505:
fp@1505: /* The checksum, stored in the last word, is calculated such that
fp@1505: * the sum of words should be 0xBABA */
fp@1505: for (addr = 0; addr < nic->eeprom_wc - 1; addr++)
fp@1505: checksum += le16_to_cpu(nic->eeprom[addr]);
fp@1505: nic->eeprom[nic->eeprom_wc - 1] = cpu_to_le16(0xBABA - checksum);
fp@1505: e100_eeprom_write(nic, addr_len, nic->eeprom_wc - 1,
fp@1505: nic->eeprom[nic->eeprom_wc - 1]);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: #define E100_WAIT_SCB_TIMEOUT 20000 /* we might have to wait 100ms!!! */
fp@1505: #define E100_WAIT_SCB_FAST 20 /* delay like the old code */
fp@1505: static int e100_exec_cmd(struct nic *nic, u8 cmd, dma_addr_t dma_addr)
fp@1505: {
fp@1505: unsigned long flags;
fp@1505: unsigned int i;
fp@1505: int err = 0;
fp@1505:
fp@1505: spin_lock_irqsave(&nic->cmd_lock, flags);
fp@1505:
fp@1505: /* Previous command is accepted when SCB clears */
fp@1505: for (i = 0; i < E100_WAIT_SCB_TIMEOUT; i++) {
fp@1505: if (likely(!ioread8(&nic->csr->scb.cmd_lo)))
fp@1505: break;
fp@1505: cpu_relax();
fp@1505: if (unlikely(i > E100_WAIT_SCB_FAST))
fp@1505: udelay(5);
fp@1505: }
fp@1505: if (unlikely(i == E100_WAIT_SCB_TIMEOUT)) {
fp@1505: err = -EAGAIN;
fp@1505: goto err_unlock;
fp@1505: }
fp@1505:
fp@1505: if (unlikely(cmd != cuc_resume))
fp@1505: iowrite32(dma_addr, &nic->csr->scb.gen_ptr);
fp@1505: iowrite8(cmd, &nic->csr->scb.cmd_lo);
fp@1505:
fp@1505: err_unlock:
fp@1505: spin_unlock_irqrestore(&nic->cmd_lock, flags);
fp@1505:
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static int e100_exec_cb(struct nic *nic, struct sk_buff *skb,
fp@1505: void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
fp@1505: {
fp@1505: struct cb *cb;
fp@1505: unsigned long flags;
fp@1505: int err = 0;
fp@1505:
fp@1505: spin_lock_irqsave(&nic->cb_lock, flags);
fp@1505:
fp@1505: if (unlikely(!nic->cbs_avail)) {
fp@1505: err = -ENOMEM;
fp@1505: goto err_unlock;
fp@1505: }
fp@1505:
fp@1505: cb = nic->cb_to_use;
fp@1505: nic->cb_to_use = cb->next;
fp@1505: nic->cbs_avail--;
fp@1505: cb->skb = skb;
fp@1505:
fp@1505: if (unlikely(!nic->cbs_avail))
fp@1505: err = -ENOSPC;
fp@1505:
fp@1505: cb_prepare(nic, cb, skb);
fp@1505:
fp@1505: /* Order is important otherwise we'll be in a race with h/w:
fp@1505: * set S-bit in current first, then clear S-bit in previous. */
fp@1505: cb->command |= cpu_to_le16(cb_s);
fp@1505: wmb();
fp@1505: cb->prev->command &= cpu_to_le16(~cb_s);
fp@1505:
fp@1505: while (nic->cb_to_send != nic->cb_to_use) {
fp@1505: if (unlikely(e100_exec_cmd(nic, nic->cuc_cmd,
fp@1505: nic->cb_to_send->dma_addr))) {
fp@1505: /* Ok, here's where things get sticky. It's
fp@1505: * possible that we can't schedule the command
fp@1505: * because the controller is too busy, so
fp@1505: * let's just queue the command and try again
fp@1505: * when another command is scheduled. */
fp@1505: if (err == -ENOSPC) {
fp@1505: //request a reset
fp@1505: schedule_work(&nic->tx_timeout_task);
fp@1505: }
fp@1505: break;
fp@1505: } else {
fp@1505: nic->cuc_cmd = cuc_resume;
fp@1505: nic->cb_to_send = nic->cb_to_send->next;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: err_unlock:
fp@1505: spin_unlock_irqrestore(&nic->cb_lock, flags);
fp@1505:
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static u16 mdio_ctrl(struct nic *nic, u32 addr, u32 dir, u32 reg, u16 data)
fp@1505: {
fp@1505: u32 data_out = 0;
fp@1505: unsigned int i;
fp@1505: unsigned long flags;
fp@1505:
fp@1505:
fp@1505: /*
fp@1505: * Stratus87247: we shouldn't be writing the MDI control
fp@1505: * register until the Ready bit shows True. Also, since
fp@1505: * manipulation of the MDI control registers is a multi-step
fp@1505: * procedure it should be done under lock.
fp@1505: */
fp@1505: spin_lock_irqsave(&nic->mdio_lock, flags);
fp@1505: for (i = 100; i; --i) {
fp@1505: if (ioread32(&nic->csr->mdi_ctrl) & mdi_ready)
fp@1505: break;
fp@1505: udelay(20);
fp@1505: }
fp@1505: if (unlikely(!i)) {
fp@1505: printk("e100.mdio_ctrl(%s) won't go Ready\n",
fp@1505: nic->netdev->name );
fp@1505: spin_unlock_irqrestore(&nic->mdio_lock, flags);
fp@1505: return 0; /* No way to indicate timeout error */
fp@1505: }
fp@1505: iowrite32((reg << 16) | (addr << 21) | dir | data, &nic->csr->mdi_ctrl);
fp@1505:
fp@1505: for (i = 0; i < 100; i++) {
fp@1505: udelay(20);
fp@1505: if ((data_out = ioread32(&nic->csr->mdi_ctrl)) & mdi_ready)
fp@1505: break;
fp@1505: }
fp@1505: spin_unlock_irqrestore(&nic->mdio_lock, flags);
fp@1505: DPRINTK(HW, DEBUG,
fp@1505: "%s:addr=%d, reg=%d, data_in=0x%04X, data_out=0x%04X\n",
fp@1505: dir == mdi_read ? "READ" : "WRITE", addr, reg, data, data_out);
fp@1505: return (u16)data_out;
fp@1505: }
fp@1505:
fp@1505: static int mdio_read(struct net_device *netdev, int addr, int reg)
fp@1505: {
fp@1505: return mdio_ctrl(netdev_priv(netdev), addr, mdi_read, reg, 0);
fp@1505: }
fp@1505:
fp@1505: static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
fp@1505: {
fp@1505: mdio_ctrl(netdev_priv(netdev), addr, mdi_write, reg, data);
fp@1505: }
fp@1505:
fp@1505: static void e100_get_defaults(struct nic *nic)
fp@1505: {
fp@1505: struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
fp@1505: struct param_range cbs = { .min = 64, .max = 256, .count = 128 };
fp@1505:
fp@1505: /* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
fp@1505: nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->pdev->revision;
fp@1505: if (nic->mac == mac_unknown)
fp@1505: nic->mac = mac_82557_D100_A;
fp@1505:
fp@1505: nic->params.rfds = rfds;
fp@1505: nic->params.cbs = cbs;
fp@1505:
fp@1505: /* Quadwords to DMA into FIFO before starting frame transmit */
fp@1505: nic->tx_threshold = 0xE0;
fp@1505:
fp@1505: /* no interrupt for every tx completion, delay = 256us if not 557 */
fp@1505: nic->tx_command = cpu_to_le16(cb_tx | cb_tx_sf |
fp@1505: ((nic->mac >= mac_82558_D101_A4) ? cb_cid : cb_i));
fp@1505:
fp@1505: /* Template for a freshly allocated RFD */
fp@1505: nic->blank_rfd.command = 0;
fp@1505: nic->blank_rfd.rbd = cpu_to_le32(0xFFFFFFFF);
fp@1505: nic->blank_rfd.size = cpu_to_le16(VLAN_ETH_FRAME_LEN);
fp@1505:
fp@1505: /* MII setup */
fp@1505: nic->mii.phy_id_mask = 0x1F;
fp@1505: nic->mii.reg_num_mask = 0x1F;
fp@1505: nic->mii.dev = nic->netdev;
fp@1505: nic->mii.mdio_read = mdio_read;
fp@1505: nic->mii.mdio_write = mdio_write;
fp@1505: }
fp@1505:
fp@1505: static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
fp@1505: {
fp@1505: struct config *config = &cb->u.config;
fp@1505: u8 *c = (u8 *)config;
fp@1505:
fp@1505: cb->command = cpu_to_le16(cb_config);
fp@1505:
fp@1505: memset(config, 0, sizeof(struct config));
fp@1505:
fp@1505: config->byte_count = 0x16; /* bytes in this struct */
fp@1505: config->rx_fifo_limit = 0x8; /* bytes in FIFO before DMA */
fp@1505: config->direct_rx_dma = 0x1; /* reserved */
fp@1505: config->standard_tcb = 0x1; /* 1=standard, 0=extended */
fp@1505: config->standard_stat_counter = 0x1; /* 1=standard, 0=extended */
fp@1505: config->rx_discard_short_frames = 0x1; /* 1=discard, 0=pass */
fp@1505: config->tx_underrun_retry = 0x3; /* # of underrun retries */
fp@1505: config->mii_mode = 0x1; /* 1=MII mode, 0=503 mode */
fp@1505: config->pad10 = 0x6;
fp@1505: config->no_source_addr_insertion = 0x1; /* 1=no, 0=yes */
fp@1505: config->preamble_length = 0x2; /* 0=1, 1=3, 2=7, 3=15 bytes */
fp@1505: config->ifs = 0x6; /* x16 = inter frame spacing */
fp@1505: config->ip_addr_hi = 0xF2; /* ARP IP filter - not used */
fp@1505: config->pad15_1 = 0x1;
fp@1505: config->pad15_2 = 0x1;
fp@1505: config->crs_or_cdt = 0x0; /* 0=CRS only, 1=CRS or CDT */
fp@1505: config->fc_delay_hi = 0x40; /* time delay for fc frame */
fp@1505: config->tx_padding = 0x1; /* 1=pad short frames */
fp@1505: config->fc_priority_threshold = 0x7; /* 7=priority fc disabled */
fp@1505: config->pad18 = 0x1;
fp@1505: config->full_duplex_pin = 0x1; /* 1=examine FDX# pin */
fp@1505: config->pad20_1 = 0x1F;
fp@1505: config->fc_priority_location = 0x1; /* 1=byte#31, 0=byte#19 */
fp@1505: config->pad21_1 = 0x5;
fp@1505:
fp@1505: config->adaptive_ifs = nic->adaptive_ifs;
fp@1505: config->loopback = nic->loopback;
fp@1505:
fp@1505: if (nic->mii.force_media && nic->mii.full_duplex)
fp@1505: config->full_duplex_force = 0x1; /* 1=force, 0=auto */
fp@1505:
fp@1505: if (nic->flags & promiscuous || nic->loopback) {
fp@1505: config->rx_save_bad_frames = 0x1; /* 1=save, 0=discard */
fp@1505: config->rx_discard_short_frames = 0x0; /* 1=discard, 0=save */
fp@1505: config->promiscuous_mode = 0x1; /* 1=on, 0=off */
fp@1505: }
fp@1505:
fp@1505: if (nic->flags & multicast_all)
fp@1505: config->multicast_all = 0x1; /* 1=accept, 0=no */
fp@1505:
fp@1505: /* disable WoL when up */
fp@1505: if (netif_running(nic->netdev) || !(nic->flags & wol_magic))
fp@1505: config->magic_packet_disable = 0x1; /* 1=off, 0=on */
fp@1505:
fp@1505: if (nic->mac >= mac_82558_D101_A4) {
fp@1505: config->fc_disable = 0x1; /* 1=Tx fc off, 0=Tx fc on */
fp@1505: config->mwi_enable = 0x1; /* 1=enable, 0=disable */
fp@1505: config->standard_tcb = 0x0; /* 1=standard, 0=extended */
fp@1505: config->rx_long_ok = 0x1; /* 1=VLANs ok, 0=standard */
fp@1505: if (nic->mac >= mac_82559_D101M) {
fp@1505: config->tno_intr = 0x1; /* TCO stats enable */
fp@1505: /* Enable TCO in extended config */
fp@1505: if (nic->mac >= mac_82551_10) {
fp@1505: config->byte_count = 0x20; /* extended bytes */
fp@1505: config->rx_d102_mode = 0x1; /* GMRC for TCO */
fp@1505: }
fp@1505: } else {
fp@1505: config->standard_stat_counter = 0x0;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: DPRINTK(HW, DEBUG, "[00-07]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
fp@1505: c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
fp@1505: DPRINTK(HW, DEBUG, "[08-15]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
fp@1505: c[8], c[9], c[10], c[11], c[12], c[13], c[14], c[15]);
fp@1505: DPRINTK(HW, DEBUG, "[16-23]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
fp@1505: c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
fp@1505: }
fp@1505:
fp@1505: /*************************************************************************
fp@1505: * CPUSaver parameters
fp@1505: *
fp@1505: * All CPUSaver parameters are 16-bit literals that are part of a
fp@1505: * "move immediate value" instruction. By changing the value of
fp@1505: * the literal in the instruction before the code is loaded, the
fp@1505: * driver can change the algorithm.
fp@1505: *
fp@1505: * INTDELAY - This loads the dead-man timer with its initial value.
fp@1505: * When this timer expires the interrupt is asserted, and the
fp@1505: * timer is reset each time a new packet is received. (see
fp@1505: * BUNDLEMAX below to set the limit on number of chained packets)
fp@1505: * The current default is 0x600 or 1536. Experiments show that
fp@1505: * the value should probably stay within the 0x200 - 0x1000.
fp@1505: *
fp@1505: * BUNDLEMAX -
fp@1505: * This sets the maximum number of frames that will be bundled. In
fp@1505: * some situations, such as the TCP windowing algorithm, it may be
fp@1505: * better to limit the growth of the bundle size than let it go as
fp@1505: * high as it can, because that could cause too much added latency.
fp@1505: * The default is six, because this is the number of packets in the
fp@1505: * default TCP window size. A value of 1 would make CPUSaver indicate
fp@1505: * an interrupt for every frame received. If you do not want to put
fp@1505: * a limit on the bundle size, set this value to xFFFF.
fp@1505: *
fp@1505: * BUNDLESMALL -
fp@1505: * This contains a bit-mask describing the minimum size frame that
fp@1505: * will be bundled. The default masks the lower 7 bits, which means
fp@1505: * that any frame less than 128 bytes in length will not be bundled,
fp@1505: * but will instead immediately generate an interrupt. This does
fp@1505: * not affect the current bundle in any way. Any frame that is 128
fp@1505: * bytes or large will be bundled normally. This feature is meant
fp@1505: * to provide immediate indication of ACK frames in a TCP environment.
fp@1505: * Customers were seeing poor performance when a machine with CPUSaver
fp@1505: * enabled was sending but not receiving. The delay introduced when
fp@1505: * the ACKs were received was enough to reduce total throughput, because
fp@1505: * the sender would sit idle until the ACK was finally seen.
fp@1505: *
fp@1505: * The current default is 0xFF80, which masks out the lower 7 bits.
fp@1505: * This means that any frame which is x7F (127) bytes or smaller
fp@1505: * will cause an immediate interrupt. Because this value must be a
fp@1505: * bit mask, there are only a few valid values that can be used. To
fp@1505: * turn this feature off, the driver can write the value xFFFF to the
fp@1505: * lower word of this instruction (in the same way that the other
fp@1505: * parameters are used). Likewise, a value of 0xF800 (2047) would
fp@1505: * cause an interrupt to be generated for every frame, because all
fp@1505: * standard Ethernet frames are <= 2047 bytes in length.
fp@1505: *************************************************************************/
fp@1505:
fp@1505: /* if you wish to disable the ucode functionality, while maintaining the
fp@1505: * workarounds it provides, set the following defines to:
fp@1505: * BUNDLESMALL 0
fp@1505: * BUNDLEMAX 1
fp@1505: * INTDELAY 1
fp@1505: */
fp@1505: #define BUNDLESMALL 1
fp@1505: #define BUNDLEMAX (u16)6
fp@1505: #define INTDELAY (u16)1536 /* 0x600 */
fp@1505:
fp@1505: /* Initialize firmware */
fp@1505: static const struct firmware *e100_request_firmware(struct nic *nic)
fp@1505: {
fp@1505: const char *fw_name;
fp@1505: const struct firmware *fw;
fp@1505: u8 timer, bundle, min_size;
fp@1505: int err;
fp@1505:
fp@1505: /* do not load u-code for ICH devices */
fp@1505: if (nic->flags & ich)
fp@1505: return NULL;
fp@1505:
fp@1505: /* Search for ucode match against h/w revision */
fp@1505: if (nic->mac == mac_82559_D101M)
fp@1505: fw_name = FIRMWARE_D101M;
fp@1505: else if (nic->mac == mac_82559_D101S)
fp@1505: fw_name = FIRMWARE_D101S;
fp@1505: else if (nic->mac == mac_82551_F || nic->mac == mac_82551_10)
fp@1505: fw_name = FIRMWARE_D102E;
fp@1505: else /* No ucode on other devices */
fp@1505: return NULL;
fp@1505:
fp@1505: err = request_firmware(&fw, fw_name, &nic->pdev->dev);
fp@1505: if (err) {
fp@1505: DPRINTK(PROBE, ERR, "Failed to load firmware \"%s\": %d\n",
fp@1505: fw_name, err);
fp@1505: return ERR_PTR(err);
fp@1505: }
fp@1505: /* Firmware should be precisely UCODE_SIZE (words) plus three bytes
fp@1505: indicating the offsets for BUNDLESMALL, BUNDLEMAX, INTDELAY */
fp@1505: if (fw->size != UCODE_SIZE * 4 + 3) {
fp@1505: DPRINTK(PROBE, ERR, "Firmware \"%s\" has wrong size %zu\n",
fp@1505: fw_name, fw->size);
fp@1505: release_firmware(fw);
fp@1505: return ERR_PTR(-EINVAL);
fp@1505: }
fp@1505:
fp@1505: /* Read timer, bundle and min_size from end of firmware blob */
fp@1505: timer = fw->data[UCODE_SIZE * 4];
fp@1505: bundle = fw->data[UCODE_SIZE * 4 + 1];
fp@1505: min_size = fw->data[UCODE_SIZE * 4 + 2];
fp@1505:
fp@1505: if (timer >= UCODE_SIZE || bundle >= UCODE_SIZE ||
fp@1505: min_size >= UCODE_SIZE) {
fp@1505: DPRINTK(PROBE, ERR,
fp@1505: "\"%s\" has bogus offset values (0x%x,0x%x,0x%x)\n",
fp@1505: fw_name, timer, bundle, min_size);
fp@1505: release_firmware(fw);
fp@1505: return ERR_PTR(-EINVAL);
fp@1505: }
fp@1505: /* OK, firmware is validated and ready to use... */
fp@1505: return fw;
fp@1505: }
fp@1505:
fp@1505: static void e100_setup_ucode(struct nic *nic, struct cb *cb,
fp@1505: struct sk_buff *skb)
fp@1505: {
fp@1505: const struct firmware *fw = (void *)skb;
fp@1505: u8 timer, bundle, min_size;
fp@1505:
fp@1505: /* It's not a real skb; we just abused the fact that e100_exec_cb
fp@1505: will pass it through to here... */
fp@1505: cb->skb = NULL;
fp@1505:
fp@1505: /* firmware is stored as little endian already */
fp@1505: memcpy(cb->u.ucode, fw->data, UCODE_SIZE * 4);
fp@1505:
fp@1505: /* Read timer, bundle and min_size from end of firmware blob */
fp@1505: timer = fw->data[UCODE_SIZE * 4];
fp@1505: bundle = fw->data[UCODE_SIZE * 4 + 1];
fp@1505: min_size = fw->data[UCODE_SIZE * 4 + 2];
fp@1505:
fp@1505: /* Insert user-tunable settings in cb->u.ucode */
fp@1505: cb->u.ucode[timer] &= cpu_to_le32(0xFFFF0000);
fp@1505: cb->u.ucode[timer] |= cpu_to_le32(INTDELAY);
fp@1505: cb->u.ucode[bundle] &= cpu_to_le32(0xFFFF0000);
fp@1505: cb->u.ucode[bundle] |= cpu_to_le32(BUNDLEMAX);
fp@1505: cb->u.ucode[min_size] &= cpu_to_le32(0xFFFF0000);
fp@1505: cb->u.ucode[min_size] |= cpu_to_le32((BUNDLESMALL) ? 0xFFFF : 0xFF80);
fp@1505:
fp@1505: cb->command = cpu_to_le16(cb_ucode | cb_el);
fp@1505: }
fp@1505:
fp@1505: static inline int e100_load_ucode_wait(struct nic *nic)
fp@1505: {
fp@1505: const struct firmware *fw;
fp@1505: int err = 0, counter = 50;
fp@1505: struct cb *cb = nic->cb_to_clean;
fp@1505:
fp@1505: fw = e100_request_firmware(nic);
fp@1505: /* If it's NULL, then no ucode is required */
fp@1505: if (!fw || IS_ERR(fw))
fp@1505: return PTR_ERR(fw);
fp@1505:
fp@1505: if ((err = e100_exec_cb(nic, (void *)fw, e100_setup_ucode)))
fp@1505: DPRINTK(PROBE,ERR, "ucode cmd failed with error %d\n", err);
fp@1505:
fp@1505: /* must restart cuc */
fp@1505: nic->cuc_cmd = cuc_start;
fp@1505:
fp@1505: /* wait for completion */
fp@1505: e100_write_flush(nic);
fp@1505: udelay(10);
fp@1505:
fp@1505: /* wait for possibly (ouch) 500ms */
fp@1505: while (!(cb->status & cpu_to_le16(cb_complete))) {
fp@1505: msleep(10);
fp@1505: if (!--counter) break;
fp@1505: }
fp@1505:
fp@1505: /* ack any interrupts, something could have been set */
fp@1505: iowrite8(~0, &nic->csr->scb.stat_ack);
fp@1505:
fp@1505: /* if the command failed, or is not OK, notify and return */
fp@1505: if (!counter || !(cb->status & cpu_to_le16(cb_ok))) {
fp@1505: DPRINTK(PROBE,ERR, "ucode load failed\n");
fp@1505: err = -EPERM;
fp@1505: }
fp@1505:
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static void e100_setup_iaaddr(struct nic *nic, struct cb *cb,
fp@1505: struct sk_buff *skb)
fp@1505: {
fp@1505: cb->command = cpu_to_le16(cb_iaaddr);
fp@1505: memcpy(cb->u.iaaddr, nic->netdev->dev_addr, ETH_ALEN);
fp@1505: }
fp@1505:
fp@1505: static void e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb)
fp@1505: {
fp@1505: cb->command = cpu_to_le16(cb_dump);
fp@1505: cb->u.dump_buffer_addr = cpu_to_le32(nic->dma_addr +
fp@1505: offsetof(struct mem, dump_buf));
fp@1505: }
fp@1505:
fp@1505: #define NCONFIG_AUTO_SWITCH 0x0080
fp@1505: #define MII_NSC_CONG MII_RESV1
fp@1505: #define NSC_CONG_ENABLE 0x0100
fp@1505: #define NSC_CONG_TXREADY 0x0400
fp@1505: #define ADVERTISE_FC_SUPPORTED 0x0400
fp@1505: static int e100_phy_init(struct nic *nic)
fp@1505: {
fp@1505: struct net_device *netdev = nic->netdev;
fp@1505: u32 addr;
fp@1505: u16 bmcr, stat, id_lo, id_hi, cong;
fp@1505:
fp@1505: /* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
fp@1505: for (addr = 0; addr < 32; addr++) {
fp@1505: nic->mii.phy_id = (addr == 0) ? 1 : (addr == 1) ? 0 : addr;
fp@1505: bmcr = mdio_read(netdev, nic->mii.phy_id, MII_BMCR);
fp@1505: stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
fp@1505: stat = mdio_read(netdev, nic->mii.phy_id, MII_BMSR);
fp@1505: if (!((bmcr == 0xFFFF) || ((stat == 0) && (bmcr == 0))))
fp@1505: break;
fp@1505: }
fp@1505: DPRINTK(HW, DEBUG, "phy_addr = %d\n", nic->mii.phy_id);
fp@1505: if (addr == 32)
fp@1505: return -EAGAIN;
fp@1505:
fp@1505: /* Selected the phy and isolate the rest */
fp@1505: for (addr = 0; addr < 32; addr++) {
fp@1505: if (addr != nic->mii.phy_id) {
fp@1505: mdio_write(netdev, addr, MII_BMCR, BMCR_ISOLATE);
fp@1505: } else {
fp@1505: bmcr = mdio_read(netdev, addr, MII_BMCR);
fp@1505: mdio_write(netdev, addr, MII_BMCR,
fp@1505: bmcr & ~BMCR_ISOLATE);
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: /* Get phy ID */
fp@1505: id_lo = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID1);
fp@1505: id_hi = mdio_read(netdev, nic->mii.phy_id, MII_PHYSID2);
fp@1505: nic->phy = (u32)id_hi << 16 | (u32)id_lo;
fp@1505: DPRINTK(HW, DEBUG, "phy ID = 0x%08X\n", nic->phy);
fp@1505:
fp@1505: /* Handle National tx phys */
fp@1505: #define NCS_PHY_MODEL_MASK 0xFFF0FFFF
fp@1505: if ((nic->phy & NCS_PHY_MODEL_MASK) == phy_nsc_tx) {
fp@1505: /* Disable congestion control */
fp@1505: cong = mdio_read(netdev, nic->mii.phy_id, MII_NSC_CONG);
fp@1505: cong |= NSC_CONG_TXREADY;
fp@1505: cong &= ~NSC_CONG_ENABLE;
fp@1505: mdio_write(netdev, nic->mii.phy_id, MII_NSC_CONG, cong);
fp@1505: }
fp@1505:
fp@1505: if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) &&
fp@1505: (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) &&
fp@1505: !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) {
fp@1505: /* enable/disable MDI/MDI-X auto-switching. */
fp@1505: mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG,
fp@1505: nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH);
fp@1505: }
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_hw_init(struct nic *nic)
fp@1505: {
fp@1505: int err;
fp@1505:
fp@1505: e100_hw_reset(nic);
fp@1505:
fp@1505: DPRINTK(HW, ERR, "e100_hw_init\n");
fp@1505: if (!in_interrupt() && (err = e100_self_test(nic)))
fp@1505: return err;
fp@1505:
fp@1505: if ((err = e100_phy_init(nic)))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cmd(nic, cuc_load_base, 0)))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cmd(nic, ruc_load_base, 0)))
fp@1505: return err;
fp@1505: if ((err = e100_load_ucode_wait(nic)))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cb(nic, NULL, e100_configure)))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cb(nic, NULL, e100_setup_iaaddr)))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cmd(nic, cuc_dump_addr,
fp@1505: nic->dma_addr + offsetof(struct mem, stats))))
fp@1505: return err;
fp@1505: if ((err = e100_exec_cmd(nic, cuc_dump_reset, 0)))
fp@1505: return err;
fp@1505:
fp@1505: e100_disable_irq(nic);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
fp@1505: {
fp@1505: struct net_device *netdev = nic->netdev;
fp@1505: struct dev_mc_list *list = netdev->mc_list;
fp@1505: u16 i, count = min(netdev->mc_count, E100_MAX_MULTICAST_ADDRS);
fp@1505:
fp@1505: cb->command = cpu_to_le16(cb_multi);
fp@1505: cb->u.multi.count = cpu_to_le16(count * ETH_ALEN);
fp@1505: for (i = 0; list && i < count; i++, list = list->next)
fp@1505: memcpy(&cb->u.multi.addr[i*ETH_ALEN], &list->dmi_addr,
fp@1505: ETH_ALEN);
fp@1505: }
fp@1505:
fp@1505: static void e100_set_multicast_list(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: DPRINTK(HW, DEBUG, "mc_count=%d, flags=0x%04X\n",
fp@1505: netdev->mc_count, netdev->flags);
fp@1505:
fp@1505: if (netdev->flags & IFF_PROMISC)
fp@1505: nic->flags |= promiscuous;
fp@1505: else
fp@1505: nic->flags &= ~promiscuous;
fp@1505:
fp@1505: if (netdev->flags & IFF_ALLMULTI ||
fp@1505: netdev->mc_count > E100_MAX_MULTICAST_ADDRS)
fp@1505: nic->flags |= multicast_all;
fp@1505: else
fp@1505: nic->flags &= ~multicast_all;
fp@1505:
fp@1505: e100_exec_cb(nic, NULL, e100_configure);
fp@1505: e100_exec_cb(nic, NULL, e100_multi);
fp@1505: }
fp@1505:
fp@1505: static void e100_update_stats(struct nic *nic)
fp@1505: {
fp@1505: struct net_device *dev = nic->netdev;
fp@1505: struct net_device_stats *ns = &dev->stats;
fp@1505: struct stats *s = &nic->mem->stats;
fp@1505: __le32 *complete = (nic->mac < mac_82558_D101_A4) ? &s->fc_xmt_pause :
fp@1505: (nic->mac < mac_82559_D101M) ? (__le32 *)&s->xmt_tco_frames :
fp@1505: &s->complete;
fp@1505:
fp@1505: /* Device's stats reporting may take several microseconds to
fp@1505: * complete, so we're always waiting for results of the
fp@1505: * previous command. */
fp@1505:
fp@1505: if (*complete == cpu_to_le32(cuc_dump_reset_complete)) {
fp@1505: *complete = 0;
fp@1505: nic->tx_frames = le32_to_cpu(s->tx_good_frames);
fp@1505: nic->tx_collisions = le32_to_cpu(s->tx_total_collisions);
fp@1505: ns->tx_aborted_errors += le32_to_cpu(s->tx_max_collisions);
fp@1505: ns->tx_window_errors += le32_to_cpu(s->tx_late_collisions);
fp@1505: ns->tx_carrier_errors += le32_to_cpu(s->tx_lost_crs);
fp@1505: ns->tx_fifo_errors += le32_to_cpu(s->tx_underruns);
fp@1505: ns->collisions += nic->tx_collisions;
fp@1505: ns->tx_errors += le32_to_cpu(s->tx_max_collisions) +
fp@1505: le32_to_cpu(s->tx_lost_crs);
fp@1505: ns->rx_length_errors += le32_to_cpu(s->rx_short_frame_errors) +
fp@1505: nic->rx_over_length_errors;
fp@1505: ns->rx_crc_errors += le32_to_cpu(s->rx_crc_errors);
fp@1505: ns->rx_frame_errors += le32_to_cpu(s->rx_alignment_errors);
fp@1505: ns->rx_over_errors += le32_to_cpu(s->rx_overrun_errors);
fp@1505: ns->rx_fifo_errors += le32_to_cpu(s->rx_overrun_errors);
fp@1505: ns->rx_missed_errors += le32_to_cpu(s->rx_resource_errors);
fp@1505: ns->rx_errors += le32_to_cpu(s->rx_crc_errors) +
fp@1505: le32_to_cpu(s->rx_alignment_errors) +
fp@1505: le32_to_cpu(s->rx_short_frame_errors) +
fp@1505: le32_to_cpu(s->rx_cdt_errors);
fp@1505: nic->tx_deferred += le32_to_cpu(s->tx_deferred);
fp@1505: nic->tx_single_collisions +=
fp@1505: le32_to_cpu(s->tx_single_collisions);
fp@1505: nic->tx_multiple_collisions +=
fp@1505: le32_to_cpu(s->tx_multiple_collisions);
fp@1505: if (nic->mac >= mac_82558_D101_A4) {
fp@1505: nic->tx_fc_pause += le32_to_cpu(s->fc_xmt_pause);
fp@1505: nic->rx_fc_pause += le32_to_cpu(s->fc_rcv_pause);
fp@1505: nic->rx_fc_unsupported +=
fp@1505: le32_to_cpu(s->fc_rcv_unsupported);
fp@1505: if (nic->mac >= mac_82559_D101M) {
fp@1505: nic->tx_tco_frames +=
fp@1505: le16_to_cpu(s->xmt_tco_frames);
fp@1505: nic->rx_tco_frames +=
fp@1505: le16_to_cpu(s->rcv_tco_frames);
fp@1505: }
fp@1505: }
fp@1505: }
fp@1505:
fp@1505:
fp@1505: if (e100_exec_cmd(nic, cuc_dump_reset, 0))
fp@1505: DPRINTK(TX_ERR, DEBUG, "exec cuc_dump_reset failed\n");
fp@1505: }
fp@1505:
fp@1505: static void e100_adjust_adaptive_ifs(struct nic *nic, int speed, int duplex)
fp@1505: {
fp@1505: /* Adjust inter-frame-spacing (IFS) between two transmits if
fp@1505: * we're getting collisions on a half-duplex connection. */
fp@1505:
fp@1505: if (duplex == DUPLEX_HALF) {
fp@1505: u32 prev = nic->adaptive_ifs;
fp@1505: u32 min_frames = (speed == SPEED_100) ? 1000 : 100;
fp@1505:
fp@1505: if ((nic->tx_frames / 32 < nic->tx_collisions) &&
fp@1505: (nic->tx_frames > min_frames)) {
fp@1505: if (nic->adaptive_ifs < 60)
fp@1505: nic->adaptive_ifs += 5;
fp@1505: } else if (nic->tx_frames < min_frames) {
fp@1505: if (nic->adaptive_ifs >= 5)
fp@1505: nic->adaptive_ifs -= 5;
fp@1505: }
fp@1505: if (nic->adaptive_ifs != prev)
fp@1505: e100_exec_cb(nic, NULL, e100_configure);
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static void e100_watchdog(unsigned long data)
fp@1505: {
fp@1505: struct nic *nic = (struct nic *)data;
fp@1505: struct ethtool_cmd cmd;
fp@1505:
fp@1505: DPRINTK(TIMER, DEBUG, "right now = %ld\n", jiffies);
fp@1505:
fp@1505: /* mii library handles link maintenance tasks */
fp@1505:
fp@1505: mii_ethtool_gset(&nic->mii, &cmd);
fp@1505:
fp@1505: if (mii_link_ok(&nic->mii) && !netif_carrier_ok(nic->netdev)) {
fp@1505: printk(KERN_INFO "e100: %s NIC Link is Up %s Mbps %s Duplex\n",
fp@1505: nic->netdev->name,
fp@1505: cmd.speed == SPEED_100 ? "100" : "10",
fp@1505: cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
fp@1505: } else if (!mii_link_ok(&nic->mii) && netif_carrier_ok(nic->netdev)) {
fp@1505: printk(KERN_INFO "e100: %s NIC Link is Down\n",
fp@1505: nic->netdev->name);
fp@1505: }
fp@1505:
fp@1505: mii_check_link(&nic->mii);
fp@1505:
fp@1505: /* Software generated interrupt to recover from (rare) Rx
fp@1505: * allocation failure.
fp@1505: * Unfortunately have to use a spinlock to not re-enable interrupts
fp@1505: * accidentally, due to hardware that shares a register between the
fp@1505: * interrupt mask bit and the SW Interrupt generation bit */
fp@1505: spin_lock_irq(&nic->cmd_lock);
fp@1505: iowrite8(ioread8(&nic->csr->scb.cmd_hi) | irq_sw_gen,&nic->csr->scb.cmd_hi);
fp@1505: e100_write_flush(nic);
fp@1505: spin_unlock_irq(&nic->cmd_lock);
fp@1505:
fp@1505: e100_update_stats(nic);
fp@1505: e100_adjust_adaptive_ifs(nic, cmd.speed, cmd.duplex);
fp@1505:
fp@1505: if (nic->mac <= mac_82557_D100_C)
fp@1505: /* Issue a multicast command to workaround a 557 lock up */
fp@1505: e100_set_multicast_list(nic->netdev);
fp@1505:
fp@1505: if (nic->flags & ich && cmd.speed==SPEED_10 && cmd.duplex==DUPLEX_HALF)
fp@1505: /* Need SW workaround for ICH[x] 10Mbps/half duplex Tx hang. */
fp@1505: nic->flags |= ich_10h_workaround;
fp@1505: else
fp@1505: nic->flags &= ~ich_10h_workaround;
fp@1505:
fp@1505: mod_timer(&nic->watchdog,
fp@1505: round_jiffies(jiffies + E100_WATCHDOG_PERIOD));
fp@1505: }
fp@1505:
fp@1505: static void e100_xmit_prepare(struct nic *nic, struct cb *cb,
fp@1505: struct sk_buff *skb)
fp@1505: {
fp@1505: cb->command = nic->tx_command;
fp@1505: /* interrupt every 16 packets regardless of delay */
fp@1505: if ((nic->cbs_avail & ~15) == nic->cbs_avail)
fp@1505: cb->command |= cpu_to_le16(cb_i);
fp@1505: cb->u.tcb.tbd_array = cb->dma_addr + offsetof(struct cb, u.tcb.tbd);
fp@1505: cb->u.tcb.tcb_byte_count = 0;
fp@1505: cb->u.tcb.threshold = nic->tx_threshold;
fp@1505: cb->u.tcb.tbd_count = 1;
fp@1505: cb->u.tcb.tbd.buf_addr = cpu_to_le32(pci_map_single(nic->pdev,
fp@1505: skb->data, skb->len, PCI_DMA_TODEVICE));
fp@1505: /* check for mapping failure? */
fp@1505: cb->u.tcb.tbd.size = cpu_to_le16(skb->len);
fp@1505: }
fp@1505:
fp@1505: static int e100_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: int err;
fp@1505:
fp@1505: if (nic->flags & ich_10h_workaround) {
fp@1505: /* SW workaround for ICH[x] 10Mbps/half duplex Tx hang.
fp@1505: Issue a NOP command followed by a 1us delay before
fp@1505: issuing the Tx command. */
fp@1505: if (e100_exec_cmd(nic, cuc_nop, 0))
fp@1505: DPRINTK(TX_ERR, DEBUG, "exec cuc_nop failed\n");
fp@1505: udelay(1);
fp@1505: }
fp@1505:
fp@1505: err = e100_exec_cb(nic, skb, e100_xmit_prepare);
fp@1505:
fp@1505: switch (err) {
fp@1505: case -ENOSPC:
fp@1505: /* We queued the skb, but now we're out of space. */
fp@1505: DPRINTK(TX_ERR, DEBUG, "No space for CB\n");
fp@1505: netif_stop_queue(netdev);
fp@1505: break;
fp@1505: case -ENOMEM:
fp@1505: /* This is a hard error - log it. */
fp@1505: DPRINTK(TX_ERR, DEBUG, "Out of Tx resources, returning skb\n");
fp@1505: netif_stop_queue(netdev);
fp@1505: return 1;
fp@1505: }
fp@1505:
fp@1505: netdev->trans_start = jiffies;
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_tx_clean(struct nic *nic)
fp@1505: {
fp@1505: struct net_device *dev = nic->netdev;
fp@1505: struct cb *cb;
fp@1505: int tx_cleaned = 0;
fp@1505:
fp@1505: spin_lock(&nic->cb_lock);
fp@1505:
fp@1505: /* Clean CBs marked complete */
fp@1505: for (cb = nic->cb_to_clean;
fp@1505: cb->status & cpu_to_le16(cb_complete);
fp@1505: cb = nic->cb_to_clean = cb->next) {
fp@1505: DPRINTK(TX_DONE, DEBUG, "cb[%d]->status = 0x%04X\n",
fp@1505: (int)(((void*)cb - (void*)nic->cbs)/sizeof(struct cb)),
fp@1505: cb->status);
fp@1505:
fp@1505: if (likely(cb->skb != NULL)) {
fp@1505: dev->stats.tx_packets++;
fp@1505: dev->stats.tx_bytes += cb->skb->len;
fp@1505:
fp@1505: pci_unmap_single(nic->pdev,
fp@1505: le32_to_cpu(cb->u.tcb.tbd.buf_addr),
fp@1505: le16_to_cpu(cb->u.tcb.tbd.size),
fp@1505: PCI_DMA_TODEVICE);
fp@1505: dev_kfree_skb_any(cb->skb);
fp@1505: cb->skb = NULL;
fp@1505: tx_cleaned = 1;
fp@1505: }
fp@1505: cb->status = 0;
fp@1505: nic->cbs_avail++;
fp@1505: }
fp@1505:
fp@1505: spin_unlock(&nic->cb_lock);
fp@1505:
fp@1505: /* Recover from running out of Tx resources in xmit_frame */
fp@1505: if (unlikely(tx_cleaned && netif_queue_stopped(nic->netdev)))
fp@1505: netif_wake_queue(nic->netdev);
fp@1505:
fp@1505: return tx_cleaned;
fp@1505: }
fp@1505:
fp@1505: static void e100_clean_cbs(struct nic *nic)
fp@1505: {
fp@1505: if (nic->cbs) {
fp@1505: while (nic->cbs_avail != nic->params.cbs.count) {
fp@1505: struct cb *cb = nic->cb_to_clean;
fp@1505: if (cb->skb) {
fp@1505: pci_unmap_single(nic->pdev,
fp@1505: le32_to_cpu(cb->u.tcb.tbd.buf_addr),
fp@1505: le16_to_cpu(cb->u.tcb.tbd.size),
fp@1505: PCI_DMA_TODEVICE);
fp@1505: dev_kfree_skb(cb->skb);
fp@1505: }
fp@1505: nic->cb_to_clean = nic->cb_to_clean->next;
fp@1505: nic->cbs_avail++;
fp@1505: }
fp@1505: pci_free_consistent(nic->pdev,
fp@1505: sizeof(struct cb) * nic->params.cbs.count,
fp@1505: nic->cbs, nic->cbs_dma_addr);
fp@1505: nic->cbs = NULL;
fp@1505: nic->cbs_avail = 0;
fp@1505: }
fp@1505: nic->cuc_cmd = cuc_start;
fp@1505: nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean =
fp@1505: nic->cbs;
fp@1505: }
fp@1505:
fp@1505: static int e100_alloc_cbs(struct nic *nic)
fp@1505: {
fp@1505: struct cb *cb;
fp@1505: unsigned int i, count = nic->params.cbs.count;
fp@1505:
fp@1505: nic->cuc_cmd = cuc_start;
fp@1505: nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = NULL;
fp@1505: nic->cbs_avail = 0;
fp@1505:
fp@1505: nic->cbs = pci_alloc_consistent(nic->pdev,
fp@1505: sizeof(struct cb) * count, &nic->cbs_dma_addr);
fp@1505: if (!nic->cbs)
fp@1505: return -ENOMEM;
fp@1505:
fp@1505: for (cb = nic->cbs, i = 0; i < count; cb++, i++) {
fp@1505: cb->next = (i + 1 < count) ? cb + 1 : nic->cbs;
fp@1505: cb->prev = (i == 0) ? nic->cbs + count - 1 : cb - 1;
fp@1505:
fp@1505: cb->dma_addr = nic->cbs_dma_addr + i * sizeof(struct cb);
fp@1505: cb->link = cpu_to_le32(nic->cbs_dma_addr +
fp@1505: ((i+1) % count) * sizeof(struct cb));
fp@1505: cb->skb = NULL;
fp@1505: }
fp@1505:
fp@1505: nic->cb_to_use = nic->cb_to_send = nic->cb_to_clean = nic->cbs;
fp@1505: nic->cbs_avail = count;
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static inline void e100_start_receiver(struct nic *nic, struct rx *rx)
fp@1505: {
fp@1505: if (!nic->rxs) return;
fp@1505: if (RU_SUSPENDED != nic->ru_running) return;
fp@1505:
fp@1505: /* handle init time starts */
fp@1505: if (!rx) rx = nic->rxs;
fp@1505:
fp@1505: /* (Re)start RU if suspended or idle and RFA is non-NULL */
fp@1505: if (rx->skb) {
fp@1505: e100_exec_cmd(nic, ruc_start, rx->dma_addr);
fp@1505: nic->ru_running = RU_RUNNING;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: #define RFD_BUF_LEN (sizeof(struct rfd) + VLAN_ETH_FRAME_LEN)
fp@1505: static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
fp@1505: {
fp@1505: if (!(rx->skb = netdev_alloc_skb(nic->netdev, RFD_BUF_LEN + NET_IP_ALIGN)))
fp@1505: return -ENOMEM;
fp@1505:
fp@1505: /* Align, init, and map the RFD. */
fp@1505: skb_reserve(rx->skb, NET_IP_ALIGN);
fp@1505: skb_copy_to_linear_data(rx->skb, &nic->blank_rfd, sizeof(struct rfd));
fp@1505: rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
fp@1505: RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
fp@1505:
fp@1505: if (pci_dma_mapping_error(nic->pdev, rx->dma_addr)) {
fp@1505: dev_kfree_skb_any(rx->skb);
fp@1505: rx->skb = NULL;
fp@1505: rx->dma_addr = 0;
fp@1505: return -ENOMEM;
fp@1505: }
fp@1505:
fp@1505: /* Link the RFD to end of RFA by linking previous RFD to
fp@1505: * this one. We are safe to touch the previous RFD because
fp@1505: * it is protected by the before last buffer's el bit being set */
fp@1505: if (rx->prev->skb) {
fp@1505: struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data;
fp@1505: put_unaligned_le32(rx->dma_addr, &prev_rfd->link);
fp@1505: pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr,
fp@1505: sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL);
fp@1505: }
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_rx_indicate(struct nic *nic, struct rx *rx,
fp@1505: unsigned int *work_done, unsigned int work_to_do)
fp@1505: {
fp@1505: struct net_device *dev = nic->netdev;
fp@1505: struct sk_buff *skb = rx->skb;
fp@1505: struct rfd *rfd = (struct rfd *)skb->data;
fp@1505: u16 rfd_status, actual_size;
fp@1505:
fp@1505: if (unlikely(work_done && *work_done >= work_to_do))
fp@1505: return -EAGAIN;
fp@1505:
fp@1505: /* Need to sync before taking a peek at cb_complete bit */
fp@1505: pci_dma_sync_single_for_cpu(nic->pdev, rx->dma_addr,
fp@1505: sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL);
fp@1505: rfd_status = le16_to_cpu(rfd->status);
fp@1505:
fp@1505: DPRINTK(RX_STATUS, DEBUG, "status=0x%04X\n", rfd_status);
fp@1505:
fp@1505: /* If data isn't ready, nothing to indicate */
fp@1505: if (unlikely(!(rfd_status & cb_complete))) {
fp@1505: /* If the next buffer has the el bit, but we think the receiver
fp@1505: * is still running, check to see if it really stopped while
fp@1505: * we had interrupts off.
fp@1505: * This allows for a fast restart without re-enabling
fp@1505: * interrupts */
fp@1505: if ((le16_to_cpu(rfd->command) & cb_el) &&
fp@1505: (RU_RUNNING == nic->ru_running))
fp@1505:
fp@1505: if (ioread8(&nic->csr->scb.status) & rus_no_res)
fp@1505: nic->ru_running = RU_SUSPENDED;
fp@1505: return -ENODATA;
fp@1505: }
fp@1505:
fp@1505: /* Get actual data size */
fp@1505: actual_size = le16_to_cpu(rfd->actual_size) & 0x3FFF;
fp@1505: if (unlikely(actual_size > RFD_BUF_LEN - sizeof(struct rfd)))
fp@1505: actual_size = RFD_BUF_LEN - sizeof(struct rfd);
fp@1505:
fp@1505: /* Get data */
fp@1505: pci_unmap_single(nic->pdev, rx->dma_addr,
fp@1505: RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
fp@1505:
fp@1505: /* If this buffer has the el bit, but we think the receiver
fp@1505: * is still running, check to see if it really stopped while
fp@1505: * we had interrupts off.
fp@1505: * This allows for a fast restart without re-enabling interrupts.
fp@1505: * This can happen when the RU sees the size change but also sees
fp@1505: * the el bit set. */
fp@1505: if ((le16_to_cpu(rfd->command) & cb_el) &&
fp@1505: (RU_RUNNING == nic->ru_running)) {
fp@1505:
fp@1505: if (ioread8(&nic->csr->scb.status) & rus_no_res)
fp@1505: nic->ru_running = RU_SUSPENDED;
fp@1505: }
fp@1505:
fp@1505: /* Pull off the RFD and put the actual data (minus eth hdr) */
fp@1505: skb_reserve(skb, sizeof(struct rfd));
fp@1505: skb_put(skb, actual_size);
fp@1505: skb->protocol = eth_type_trans(skb, nic->netdev);
fp@1505:
fp@1505: if (unlikely(!(rfd_status & cb_ok))) {
fp@1505: /* Don't indicate if hardware indicates errors */
fp@1505: dev_kfree_skb_any(skb);
fp@1505: } else if (actual_size > ETH_DATA_LEN + VLAN_ETH_HLEN) {
fp@1505: /* Don't indicate oversized frames */
fp@1505: nic->rx_over_length_errors++;
fp@1505: dev_kfree_skb_any(skb);
fp@1505: } else {
fp@1505: dev->stats.rx_packets++;
fp@1505: dev->stats.rx_bytes += actual_size;
fp@1505: netif_receive_skb(skb);
fp@1505: if (work_done)
fp@1505: (*work_done)++;
fp@1505: }
fp@1505:
fp@1505: rx->skb = NULL;
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static void e100_rx_clean(struct nic *nic, unsigned int *work_done,
fp@1505: unsigned int work_to_do)
fp@1505: {
fp@1505: struct rx *rx;
fp@1505: int restart_required = 0, err = 0;
fp@1505: struct rx *old_before_last_rx, *new_before_last_rx;
fp@1505: struct rfd *old_before_last_rfd, *new_before_last_rfd;
fp@1505:
fp@1505: /* Indicate newly arrived packets */
fp@1505: for (rx = nic->rx_to_clean; rx->skb; rx = nic->rx_to_clean = rx->next) {
fp@1505: err = e100_rx_indicate(nic, rx, work_done, work_to_do);
fp@1505: /* Hit quota or no more to clean */
fp@1505: if (-EAGAIN == err || -ENODATA == err)
fp@1505: break;
fp@1505: }
fp@1505:
fp@1505:
fp@1505: /* On EAGAIN, hit quota so have more work to do, restart once
fp@1505: * cleanup is complete.
fp@1505: * Else, are we already rnr? then pay attention!!! this ensures that
fp@1505: * the state machine progression never allows a start with a
fp@1505: * partially cleaned list, avoiding a race between hardware
fp@1505: * and rx_to_clean when in NAPI mode */
fp@1505: if (-EAGAIN != err && RU_SUSPENDED == nic->ru_running)
fp@1505: restart_required = 1;
fp@1505:
fp@1505: old_before_last_rx = nic->rx_to_use->prev->prev;
fp@1505: old_before_last_rfd = (struct rfd *)old_before_last_rx->skb->data;
fp@1505:
fp@1505: /* Alloc new skbs to refill list */
fp@1505: for (rx = nic->rx_to_use; !rx->skb; rx = nic->rx_to_use = rx->next) {
fp@1505: if (unlikely(e100_rx_alloc_skb(nic, rx)))
fp@1505: break; /* Better luck next time (see watchdog) */
fp@1505: }
fp@1505:
fp@1505: new_before_last_rx = nic->rx_to_use->prev->prev;
fp@1505: if (new_before_last_rx != old_before_last_rx) {
fp@1505: /* Set the el-bit on the buffer that is before the last buffer.
fp@1505: * This lets us update the next pointer on the last buffer
fp@1505: * without worrying about hardware touching it.
fp@1505: * We set the size to 0 to prevent hardware from touching this
fp@1505: * buffer.
fp@1505: * When the hardware hits the before last buffer with el-bit
fp@1505: * and size of 0, it will RNR interrupt, the RUS will go into
fp@1505: * the No Resources state. It will not complete nor write to
fp@1505: * this buffer. */
fp@1505: new_before_last_rfd =
fp@1505: (struct rfd *)new_before_last_rx->skb->data;
fp@1505: new_before_last_rfd->size = 0;
fp@1505: new_before_last_rfd->command |= cpu_to_le16(cb_el);
fp@1505: pci_dma_sync_single_for_device(nic->pdev,
fp@1505: new_before_last_rx->dma_addr, sizeof(struct rfd),
fp@1505: PCI_DMA_BIDIRECTIONAL);
fp@1505:
fp@1505: /* Now that we have a new stopping point, we can clear the old
fp@1505: * stopping point. We must sync twice to get the proper
fp@1505: * ordering on the hardware side of things. */
fp@1505: old_before_last_rfd->command &= ~cpu_to_le16(cb_el);
fp@1505: pci_dma_sync_single_for_device(nic->pdev,
fp@1505: old_before_last_rx->dma_addr, sizeof(struct rfd),
fp@1505: PCI_DMA_BIDIRECTIONAL);
fp@1505: old_before_last_rfd->size = cpu_to_le16(VLAN_ETH_FRAME_LEN);
fp@1505: pci_dma_sync_single_for_device(nic->pdev,
fp@1505: old_before_last_rx->dma_addr, sizeof(struct rfd),
fp@1505: PCI_DMA_BIDIRECTIONAL);
fp@1505: }
fp@1505:
fp@1505: if (restart_required) {
fp@1505: // ack the rnr?
fp@1505: iowrite8(stat_ack_rnr, &nic->csr->scb.stat_ack);
fp@1505: e100_start_receiver(nic, nic->rx_to_clean);
fp@1505: if (work_done)
fp@1505: (*work_done)++;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static void e100_rx_clean_list(struct nic *nic)
fp@1505: {
fp@1505: struct rx *rx;
fp@1505: unsigned int i, count = nic->params.rfds.count;
fp@1505:
fp@1505: nic->ru_running = RU_UNINITIALIZED;
fp@1505:
fp@1505: if (nic->rxs) {
fp@1505: for (rx = nic->rxs, i = 0; i < count; rx++, i++) {
fp@1505: if (rx->skb) {
fp@1505: pci_unmap_single(nic->pdev, rx->dma_addr,
fp@1505: RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
fp@1505: dev_kfree_skb(rx->skb);
fp@1505: }
fp@1505: }
fp@1505: kfree(nic->rxs);
fp@1505: nic->rxs = NULL;
fp@1505: }
fp@1505:
fp@1505: nic->rx_to_use = nic->rx_to_clean = NULL;
fp@1505: }
fp@1505:
fp@1505: static int e100_rx_alloc_list(struct nic *nic)
fp@1505: {
fp@1505: struct rx *rx;
fp@1505: unsigned int i, count = nic->params.rfds.count;
fp@1505: struct rfd *before_last;
fp@1505:
fp@1505: nic->rx_to_use = nic->rx_to_clean = NULL;
fp@1505: nic->ru_running = RU_UNINITIALIZED;
fp@1505:
fp@1505: if (!(nic->rxs = kcalloc(count, sizeof(struct rx), GFP_ATOMIC)))
fp@1505: return -ENOMEM;
fp@1505:
fp@1505: for (rx = nic->rxs, i = 0; i < count; rx++, i++) {
fp@1505: rx->next = (i + 1 < count) ? rx + 1 : nic->rxs;
fp@1505: rx->prev = (i == 0) ? nic->rxs + count - 1 : rx - 1;
fp@1505: if (e100_rx_alloc_skb(nic, rx)) {
fp@1505: e100_rx_clean_list(nic);
fp@1505: return -ENOMEM;
fp@1505: }
fp@1505: }
fp@1505: /* Set the el-bit on the buffer that is before the last buffer.
fp@1505: * This lets us update the next pointer on the last buffer without
fp@1505: * worrying about hardware touching it.
fp@1505: * We set the size to 0 to prevent hardware from touching this buffer.
fp@1505: * When the hardware hits the before last buffer with el-bit and size
fp@1505: * of 0, it will RNR interrupt, the RU will go into the No Resources
fp@1505: * state. It will not complete nor write to this buffer. */
fp@1505: rx = nic->rxs->prev->prev;
fp@1505: before_last = (struct rfd *)rx->skb->data;
fp@1505: before_last->command |= cpu_to_le16(cb_el);
fp@1505: before_last->size = 0;
fp@1505: pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr,
fp@1505: sizeof(struct rfd), PCI_DMA_BIDIRECTIONAL);
fp@1505:
fp@1505: nic->rx_to_use = nic->rx_to_clean = nic->rxs;
fp@1505: nic->ru_running = RU_SUSPENDED;
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static irqreturn_t e100_intr(int irq, void *dev_id)
fp@1505: {
fp@1505: struct net_device *netdev = dev_id;
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: u8 stat_ack = ioread8(&nic->csr->scb.stat_ack);
fp@1505:
fp@1505: DPRINTK(INTR, DEBUG, "stat_ack = 0x%02X\n", stat_ack);
fp@1505:
fp@1505: if (stat_ack == stat_ack_not_ours || /* Not our interrupt */
fp@1505: stat_ack == stat_ack_not_present) /* Hardware is ejected */
fp@1505: return IRQ_NONE;
fp@1505:
fp@1505: /* Ack interrupt(s) */
fp@1505: iowrite8(stat_ack, &nic->csr->scb.stat_ack);
fp@1505:
fp@1505: /* We hit Receive No Resource (RNR); restart RU after cleaning */
fp@1505: if (stat_ack & stat_ack_rnr)
fp@1505: nic->ru_running = RU_SUSPENDED;
fp@1505:
fp@1505: if (likely(netif_rx_schedule_prep(&nic->napi))) {
fp@1505: e100_disable_irq(nic);
fp@1505: __netif_rx_schedule(&nic->napi);
fp@1505: }
fp@1505:
fp@1505: return IRQ_HANDLED;
fp@1505: }
fp@1505:
fp@1505: static int e100_poll(struct napi_struct *napi, int budget)
fp@1505: {
fp@1505: struct nic *nic = container_of(napi, struct nic, napi);
fp@1505: unsigned int work_done = 0;
fp@1505:
fp@1505: e100_rx_clean(nic, &work_done, budget);
fp@1505: e100_tx_clean(nic);
fp@1505:
fp@1505: /* If budget not fully consumed, exit the polling mode */
fp@1505: if (work_done < budget) {
fp@1505: netif_rx_complete(napi);
fp@1505: e100_enable_irq(nic);
fp@1505: }
fp@1505:
fp@1505: return work_done;
fp@1505: }
fp@1505:
fp@1505: #ifdef CONFIG_NET_POLL_CONTROLLER
fp@1505: static void e100_netpoll(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: e100_disable_irq(nic);
fp@1505: e100_intr(nic->pdev->irq, netdev);
fp@1505: e100_tx_clean(nic);
fp@1505: e100_enable_irq(nic);
fp@1505: }
fp@1505: #endif
fp@1505:
fp@1505: static int e100_set_mac_address(struct net_device *netdev, void *p)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: struct sockaddr *addr = p;
fp@1505:
fp@1505: if (!is_valid_ether_addr(addr->sa_data))
fp@1505: return -EADDRNOTAVAIL;
fp@1505:
fp@1505: memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
fp@1505: e100_exec_cb(nic, NULL, e100_setup_iaaddr);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_change_mtu(struct net_device *netdev, int new_mtu)
fp@1505: {
fp@1505: if (new_mtu < ETH_ZLEN || new_mtu > ETH_DATA_LEN)
fp@1505: return -EINVAL;
fp@1505: netdev->mtu = new_mtu;
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_asf(struct nic *nic)
fp@1505: {
fp@1505: /* ASF can be enabled from eeprom */
fp@1505: return((nic->pdev->device >= 0x1050) && (nic->pdev->device <= 0x1057) &&
fp@1505: (nic->eeprom[eeprom_config_asf] & eeprom_asf) &&
fp@1505: !(nic->eeprom[eeprom_config_asf] & eeprom_gcl) &&
fp@1505: ((nic->eeprom[eeprom_smbus_addr] & 0xFF) != 0xFE));
fp@1505: }
fp@1505:
fp@1505: static int e100_up(struct nic *nic)
fp@1505: {
fp@1505: int err;
fp@1505:
fp@1505: if ((err = e100_rx_alloc_list(nic)))
fp@1505: return err;
fp@1505: if ((err = e100_alloc_cbs(nic)))
fp@1505: goto err_rx_clean_list;
fp@1505: if ((err = e100_hw_init(nic)))
fp@1505: goto err_clean_cbs;
fp@1505: e100_set_multicast_list(nic->netdev);
fp@1505: e100_start_receiver(nic, NULL);
fp@1505: mod_timer(&nic->watchdog, jiffies);
fp@1505: if ((err = request_irq(nic->pdev->irq, e100_intr, IRQF_SHARED,
fp@1505: nic->netdev->name, nic->netdev)))
fp@1505: goto err_no_irq;
fp@1505: netif_wake_queue(nic->netdev);
fp@1505: napi_enable(&nic->napi);
fp@1505: /* enable ints _after_ enabling poll, preventing a race between
fp@1505: * disable ints+schedule */
fp@1505: e100_enable_irq(nic);
fp@1505: return 0;
fp@1505:
fp@1505: err_no_irq:
fp@1505: del_timer_sync(&nic->watchdog);
fp@1505: err_clean_cbs:
fp@1505: e100_clean_cbs(nic);
fp@1505: err_rx_clean_list:
fp@1505: e100_rx_clean_list(nic);
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static void e100_down(struct nic *nic)
fp@1505: {
fp@1505: /* wait here for poll to complete */
fp@1505: napi_disable(&nic->napi);
fp@1505: netif_stop_queue(nic->netdev);
fp@1505: e100_hw_reset(nic);
fp@1505: free_irq(nic->pdev->irq, nic->netdev);
fp@1505: del_timer_sync(&nic->watchdog);
fp@1505: netif_carrier_off(nic->netdev);
fp@1505: e100_clean_cbs(nic);
fp@1505: e100_rx_clean_list(nic);
fp@1505: }
fp@1505:
fp@1505: static void e100_tx_timeout(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: /* Reset outside of interrupt context, to avoid request_irq
fp@1505: * in interrupt context */
fp@1505: schedule_work(&nic->tx_timeout_task);
fp@1505: }
fp@1505:
fp@1505: static void e100_tx_timeout_task(struct work_struct *work)
fp@1505: {
fp@1505: struct nic *nic = container_of(work, struct nic, tx_timeout_task);
fp@1505: struct net_device *netdev = nic->netdev;
fp@1505:
fp@1505: DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n",
fp@1505: ioread8(&nic->csr->scb.status));
fp@1505: e100_down(netdev_priv(netdev));
fp@1505: e100_up(netdev_priv(netdev));
fp@1505: }
fp@1505:
fp@1505: static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode)
fp@1505: {
fp@1505: int err;
fp@1505: struct sk_buff *skb;
fp@1505:
fp@1505: /* Use driver resources to perform internal MAC or PHY
fp@1505: * loopback test. A single packet is prepared and transmitted
fp@1505: * in loopback mode, and the test passes if the received
fp@1505: * packet compares byte-for-byte to the transmitted packet. */
fp@1505:
fp@1505: if ((err = e100_rx_alloc_list(nic)))
fp@1505: return err;
fp@1505: if ((err = e100_alloc_cbs(nic)))
fp@1505: goto err_clean_rx;
fp@1505:
fp@1505: /* ICH PHY loopback is broken so do MAC loopback instead */
fp@1505: if (nic->flags & ich && loopback_mode == lb_phy)
fp@1505: loopback_mode = lb_mac;
fp@1505:
fp@1505: nic->loopback = loopback_mode;
fp@1505: if ((err = e100_hw_init(nic)))
fp@1505: goto err_loopback_none;
fp@1505:
fp@1505: if (loopback_mode == lb_phy)
fp@1505: mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR,
fp@1505: BMCR_LOOPBACK);
fp@1505:
fp@1505: e100_start_receiver(nic, NULL);
fp@1505:
fp@1505: if (!(skb = netdev_alloc_skb(nic->netdev, ETH_DATA_LEN))) {
fp@1505: err = -ENOMEM;
fp@1505: goto err_loopback_none;
fp@1505: }
fp@1505: skb_put(skb, ETH_DATA_LEN);
fp@1505: memset(skb->data, 0xFF, ETH_DATA_LEN);
fp@1505: e100_xmit_frame(skb, nic->netdev);
fp@1505:
fp@1505: msleep(10);
fp@1505:
fp@1505: pci_dma_sync_single_for_cpu(nic->pdev, nic->rx_to_clean->dma_addr,
fp@1505: RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
fp@1505:
fp@1505: if (memcmp(nic->rx_to_clean->skb->data + sizeof(struct rfd),
fp@1505: skb->data, ETH_DATA_LEN))
fp@1505: err = -EAGAIN;
fp@1505:
fp@1505: err_loopback_none:
fp@1505: mdio_write(nic->netdev, nic->mii.phy_id, MII_BMCR, 0);
fp@1505: nic->loopback = lb_none;
fp@1505: e100_clean_cbs(nic);
fp@1505: e100_hw_reset(nic);
fp@1505: err_clean_rx:
fp@1505: e100_rx_clean_list(nic);
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: #define MII_LED_CONTROL 0x1B
fp@1505: static void e100_blink_led(unsigned long data)
fp@1505: {
fp@1505: struct nic *nic = (struct nic *)data;
fp@1505: enum led_state {
fp@1505: led_on = 0x01,
fp@1505: led_off = 0x04,
fp@1505: led_on_559 = 0x05,
fp@1505: led_on_557 = 0x07,
fp@1505: };
fp@1505:
fp@1505: nic->leds = (nic->leds & led_on) ? led_off :
fp@1505: (nic->mac < mac_82559_D101M) ? led_on_557 : led_on_559;
fp@1505: mdio_write(nic->netdev, nic->mii.phy_id, MII_LED_CONTROL, nic->leds);
fp@1505: mod_timer(&nic->blink_timer, jiffies + HZ / 4);
fp@1505: }
fp@1505:
fp@1505: static int e100_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return mii_ethtool_gset(&nic->mii, cmd);
fp@1505: }
fp@1505:
fp@1505: static int e100_set_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: int err;
fp@1505:
fp@1505: mdio_write(netdev, nic->mii.phy_id, MII_BMCR, BMCR_RESET);
fp@1505: err = mii_ethtool_sset(&nic->mii, cmd);
fp@1505: e100_exec_cb(nic, NULL, e100_configure);
fp@1505:
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static void e100_get_drvinfo(struct net_device *netdev,
fp@1505: struct ethtool_drvinfo *info)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: strcpy(info->driver, DRV_NAME);
fp@1505: strcpy(info->version, DRV_VERSION);
fp@1505: strcpy(info->fw_version, "N/A");
fp@1505: strcpy(info->bus_info, pci_name(nic->pdev));
fp@1505: }
fp@1505:
fp@1505: #define E100_PHY_REGS 0x1C
fp@1505: static int e100_get_regs_len(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf);
fp@1505: }
fp@1505:
fp@1505: static void e100_get_regs(struct net_device *netdev,
fp@1505: struct ethtool_regs *regs, void *p)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: u32 *buff = p;
fp@1505: int i;
fp@1505:
fp@1505: regs->version = (1 << 24) | nic->pdev->revision;
fp@1505: buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 |
fp@1505: ioread8(&nic->csr->scb.cmd_lo) << 16 |
fp@1505: ioread16(&nic->csr->scb.status);
fp@1505: for (i = E100_PHY_REGS; i >= 0; i--)
fp@1505: buff[1 + E100_PHY_REGS - i] =
fp@1505: mdio_read(netdev, nic->mii.phy_id, i);
fp@1505: memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf));
fp@1505: e100_exec_cb(nic, NULL, e100_dump);
fp@1505: msleep(10);
fp@1505: memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf,
fp@1505: sizeof(nic->mem->dump_buf));
fp@1505: }
fp@1505:
fp@1505: static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: wol->supported = (nic->mac >= mac_82558_D101_A4) ? WAKE_MAGIC : 0;
fp@1505: wol->wolopts = (nic->flags & wol_magic) ? WAKE_MAGIC : 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: if ((wol->wolopts && wol->wolopts != WAKE_MAGIC) ||
fp@1505: !device_can_wakeup(&nic->pdev->dev))
fp@1505: return -EOPNOTSUPP;
fp@1505:
fp@1505: if (wol->wolopts)
fp@1505: nic->flags |= wol_magic;
fp@1505: else
fp@1505: nic->flags &= ~wol_magic;
fp@1505:
fp@1505: device_set_wakeup_enable(&nic->pdev->dev, wol->wolopts);
fp@1505:
fp@1505: e100_exec_cb(nic, NULL, e100_configure);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static u32 e100_get_msglevel(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return nic->msg_enable;
fp@1505: }
fp@1505:
fp@1505: static void e100_set_msglevel(struct net_device *netdev, u32 value)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: nic->msg_enable = value;
fp@1505: }
fp@1505:
fp@1505: static int e100_nway_reset(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return mii_nway_restart(&nic->mii);
fp@1505: }
fp@1505:
fp@1505: static u32 e100_get_link(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return mii_link_ok(&nic->mii);
fp@1505: }
fp@1505:
fp@1505: static int e100_get_eeprom_len(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: return nic->eeprom_wc << 1;
fp@1505: }
fp@1505:
fp@1505: #define E100_EEPROM_MAGIC 0x1234
fp@1505: static int e100_get_eeprom(struct net_device *netdev,
fp@1505: struct ethtool_eeprom *eeprom, u8 *bytes)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: eeprom->magic = E100_EEPROM_MAGIC;
fp@1505: memcpy(bytes, &((u8 *)nic->eeprom)[eeprom->offset], eeprom->len);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_set_eeprom(struct net_device *netdev,
fp@1505: struct ethtool_eeprom *eeprom, u8 *bytes)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: if (eeprom->magic != E100_EEPROM_MAGIC)
fp@1505: return -EINVAL;
fp@1505:
fp@1505: memcpy(&((u8 *)nic->eeprom)[eeprom->offset], bytes, eeprom->len);
fp@1505:
fp@1505: return e100_eeprom_save(nic, eeprom->offset >> 1,
fp@1505: (eeprom->len >> 1) + 1);
fp@1505: }
fp@1505:
fp@1505: static void e100_get_ringparam(struct net_device *netdev,
fp@1505: struct ethtool_ringparam *ring)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: struct param_range *rfds = &nic->params.rfds;
fp@1505: struct param_range *cbs = &nic->params.cbs;
fp@1505:
fp@1505: ring->rx_max_pending = rfds->max;
fp@1505: ring->tx_max_pending = cbs->max;
fp@1505: ring->rx_mini_max_pending = 0;
fp@1505: ring->rx_jumbo_max_pending = 0;
fp@1505: ring->rx_pending = rfds->count;
fp@1505: ring->tx_pending = cbs->count;
fp@1505: ring->rx_mini_pending = 0;
fp@1505: ring->rx_jumbo_pending = 0;
fp@1505: }
fp@1505:
fp@1505: static int e100_set_ringparam(struct net_device *netdev,
fp@1505: struct ethtool_ringparam *ring)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: struct param_range *rfds = &nic->params.rfds;
fp@1505: struct param_range *cbs = &nic->params.cbs;
fp@1505:
fp@1505: if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
fp@1505: return -EINVAL;
fp@1505:
fp@1505: if (netif_running(netdev))
fp@1505: e100_down(nic);
fp@1505: rfds->count = max(ring->rx_pending, rfds->min);
fp@1505: rfds->count = min(rfds->count, rfds->max);
fp@1505: cbs->count = max(ring->tx_pending, cbs->min);
fp@1505: cbs->count = min(cbs->count, cbs->max);
fp@1505: DPRINTK(DRV, INFO, "Ring Param settings: rx: %d, tx %d\n",
fp@1505: rfds->count, cbs->count);
fp@1505: if (netif_running(netdev))
fp@1505: e100_up(nic);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static const char e100_gstrings_test[][ETH_GSTRING_LEN] = {
fp@1505: "Link test (on/offline)",
fp@1505: "Eeprom test (on/offline)",
fp@1505: "Self test (offline)",
fp@1505: "Mac loopback (offline)",
fp@1505: "Phy loopback (offline)",
fp@1505: };
fp@1505: #define E100_TEST_LEN ARRAY_SIZE(e100_gstrings_test)
fp@1505:
fp@1505: static void e100_diag_test(struct net_device *netdev,
fp@1505: struct ethtool_test *test, u64 *data)
fp@1505: {
fp@1505: struct ethtool_cmd cmd;
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: int i, err;
fp@1505:
fp@1505: memset(data, 0, E100_TEST_LEN * sizeof(u64));
fp@1505: data[0] = !mii_link_ok(&nic->mii);
fp@1505: data[1] = e100_eeprom_load(nic);
fp@1505: if (test->flags & ETH_TEST_FL_OFFLINE) {
fp@1505:
fp@1505: /* save speed, duplex & autoneg settings */
fp@1505: err = mii_ethtool_gset(&nic->mii, &cmd);
fp@1505:
fp@1505: if (netif_running(netdev))
fp@1505: e100_down(nic);
fp@1505: data[2] = e100_self_test(nic);
fp@1505: data[3] = e100_loopback_test(nic, lb_mac);
fp@1505: data[4] = e100_loopback_test(nic, lb_phy);
fp@1505:
fp@1505: /* restore speed, duplex & autoneg settings */
fp@1505: err = mii_ethtool_sset(&nic->mii, &cmd);
fp@1505:
fp@1505: if (netif_running(netdev))
fp@1505: e100_up(nic);
fp@1505: }
fp@1505: for (i = 0; i < E100_TEST_LEN; i++)
fp@1505: test->flags |= data[i] ? ETH_TEST_FL_FAILED : 0;
fp@1505:
fp@1505: msleep_interruptible(4 * 1000);
fp@1505: }
fp@1505:
fp@1505: static int e100_phys_id(struct net_device *netdev, u32 data)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: if (!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
fp@1505: data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
fp@1505: mod_timer(&nic->blink_timer, jiffies);
fp@1505: msleep_interruptible(data * 1000);
fp@1505: del_timer_sync(&nic->blink_timer);
fp@1505: mdio_write(netdev, nic->mii.phy_id, MII_LED_CONTROL, 0);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static const char e100_gstrings_stats[][ETH_GSTRING_LEN] = {
fp@1505: "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
fp@1505: "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
fp@1505: "rx_length_errors", "rx_over_errors", "rx_crc_errors",
fp@1505: "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
fp@1505: "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
fp@1505: "tx_heartbeat_errors", "tx_window_errors",
fp@1505: /* device-specific stats */
fp@1505: "tx_deferred", "tx_single_collisions", "tx_multi_collisions",
fp@1505: "tx_flow_control_pause", "rx_flow_control_pause",
fp@1505: "rx_flow_control_unsupported", "tx_tco_packets", "rx_tco_packets",
fp@1505: };
fp@1505: #define E100_NET_STATS_LEN 21
fp@1505: #define E100_STATS_LEN ARRAY_SIZE(e100_gstrings_stats)
fp@1505:
fp@1505: static int e100_get_sset_count(struct net_device *netdev, int sset)
fp@1505: {
fp@1505: switch (sset) {
fp@1505: case ETH_SS_TEST:
fp@1505: return E100_TEST_LEN;
fp@1505: case ETH_SS_STATS:
fp@1505: return E100_STATS_LEN;
fp@1505: default:
fp@1505: return -EOPNOTSUPP;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static void e100_get_ethtool_stats(struct net_device *netdev,
fp@1505: struct ethtool_stats *stats, u64 *data)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: int i;
fp@1505:
fp@1505: for (i = 0; i < E100_NET_STATS_LEN; i++)
fp@1505: data[i] = ((unsigned long *)&netdev->stats)[i];
fp@1505:
fp@1505: data[i++] = nic->tx_deferred;
fp@1505: data[i++] = nic->tx_single_collisions;
fp@1505: data[i++] = nic->tx_multiple_collisions;
fp@1505: data[i++] = nic->tx_fc_pause;
fp@1505: data[i++] = nic->rx_fc_pause;
fp@1505: data[i++] = nic->rx_fc_unsupported;
fp@1505: data[i++] = nic->tx_tco_frames;
fp@1505: data[i++] = nic->rx_tco_frames;
fp@1505: }
fp@1505:
fp@1505: static void e100_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
fp@1505: {
fp@1505: switch (stringset) {
fp@1505: case ETH_SS_TEST:
fp@1505: memcpy(data, *e100_gstrings_test, sizeof(e100_gstrings_test));
fp@1505: break;
fp@1505: case ETH_SS_STATS:
fp@1505: memcpy(data, *e100_gstrings_stats, sizeof(e100_gstrings_stats));
fp@1505: break;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static const struct ethtool_ops e100_ethtool_ops = {
fp@1505: .get_settings = e100_get_settings,
fp@1505: .set_settings = e100_set_settings,
fp@1505: .get_drvinfo = e100_get_drvinfo,
fp@1505: .get_regs_len = e100_get_regs_len,
fp@1505: .get_regs = e100_get_regs,
fp@1505: .get_wol = e100_get_wol,
fp@1505: .set_wol = e100_set_wol,
fp@1505: .get_msglevel = e100_get_msglevel,
fp@1505: .set_msglevel = e100_set_msglevel,
fp@1505: .nway_reset = e100_nway_reset,
fp@1505: .get_link = e100_get_link,
fp@1505: .get_eeprom_len = e100_get_eeprom_len,
fp@1505: .get_eeprom = e100_get_eeprom,
fp@1505: .set_eeprom = e100_set_eeprom,
fp@1505: .get_ringparam = e100_get_ringparam,
fp@1505: .set_ringparam = e100_set_ringparam,
fp@1505: .self_test = e100_diag_test,
fp@1505: .get_strings = e100_get_strings,
fp@1505: .phys_id = e100_phys_id,
fp@1505: .get_ethtool_stats = e100_get_ethtool_stats,
fp@1505: .get_sset_count = e100_get_sset_count,
fp@1505: };
fp@1505:
fp@1505: static int e100_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: return generic_mii_ioctl(&nic->mii, if_mii(ifr), cmd, NULL);
fp@1505: }
fp@1505:
fp@1505: static int e100_alloc(struct nic *nic)
fp@1505: {
fp@1505: nic->mem = pci_alloc_consistent(nic->pdev, sizeof(struct mem),
fp@1505: &nic->dma_addr);
fp@1505: return nic->mem ? 0 : -ENOMEM;
fp@1505: }
fp@1505:
fp@1505: static void e100_free(struct nic *nic)
fp@1505: {
fp@1505: if (nic->mem) {
fp@1505: pci_free_consistent(nic->pdev, sizeof(struct mem),
fp@1505: nic->mem, nic->dma_addr);
fp@1505: nic->mem = NULL;
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static int e100_open(struct net_device *netdev)
fp@1505: {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: int err = 0;
fp@1505:
fp@1505: netif_carrier_off(netdev);
fp@1505: if ((err = e100_up(nic)))
fp@1505: DPRINTK(IFUP, ERR, "Cannot open interface, aborting.\n");
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static int e100_close(struct net_device *netdev)
fp@1505: {
fp@1505: e100_down(netdev_priv(netdev));
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: static const struct net_device_ops e100_netdev_ops = {
fp@1505: .ndo_open = e100_open,
fp@1505: .ndo_stop = e100_close,
fp@1505: .ndo_start_xmit = e100_xmit_frame,
fp@1505: .ndo_validate_addr = eth_validate_addr,
fp@1505: .ndo_set_multicast_list = e100_set_multicast_list,
fp@1505: .ndo_set_mac_address = e100_set_mac_address,
fp@1505: .ndo_change_mtu = e100_change_mtu,
fp@1505: .ndo_do_ioctl = e100_do_ioctl,
fp@1505: .ndo_tx_timeout = e100_tx_timeout,
fp@1505: #ifdef CONFIG_NET_POLL_CONTROLLER
fp@1505: .ndo_poll_controller = e100_netpoll,
fp@1505: #endif
fp@1505: };
fp@1505:
fp@1505: static int __devinit e100_probe(struct pci_dev *pdev,
fp@1505: const struct pci_device_id *ent)
fp@1505: {
fp@1505: struct net_device *netdev;
fp@1505: struct nic *nic;
fp@1505: int err;
fp@1505:
fp@1505: if (!(netdev = alloc_etherdev(sizeof(struct nic)))) {
fp@1505: if (((1 << debug) - 1) & NETIF_MSG_PROBE)
fp@1505: printk(KERN_ERR PFX "Etherdev alloc failed, abort.\n");
fp@1505: return -ENOMEM;
fp@1505: }
fp@1505:
fp@1505: netdev->netdev_ops = &e100_netdev_ops;
fp@1505: SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops);
fp@1505: netdev->watchdog_timeo = E100_WATCHDOG_PERIOD;
fp@1505: strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
fp@1505:
fp@1505: nic = netdev_priv(netdev);
fp@1505: netif_napi_add(netdev, &nic->napi, e100_poll, E100_NAPI_WEIGHT);
fp@1505: nic->netdev = netdev;
fp@1505: nic->pdev = pdev;
fp@1505: nic->msg_enable = (1 << debug) - 1;
fp@1505: pci_set_drvdata(pdev, netdev);
fp@1505:
fp@1505: if ((err = pci_enable_device(pdev))) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot enable PCI device, aborting.\n");
fp@1505: goto err_out_free_dev;
fp@1505: }
fp@1505:
fp@1505: if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot find proper PCI device "
fp@1505: "base address, aborting.\n");
fp@1505: err = -ENODEV;
fp@1505: goto err_out_disable_pdev;
fp@1505: }
fp@1505:
fp@1505: if ((err = pci_request_regions(pdev, DRV_NAME))) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot obtain PCI resources, aborting.\n");
fp@1505: goto err_out_disable_pdev;
fp@1505: }
fp@1505:
fp@1505: if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
fp@1505: DPRINTK(PROBE, ERR, "No usable DMA configuration, aborting.\n");
fp@1505: goto err_out_free_res;
fp@1505: }
fp@1505:
fp@1505: SET_NETDEV_DEV(netdev, &pdev->dev);
fp@1505:
fp@1505: if (use_io)
fp@1505: DPRINTK(PROBE, INFO, "using i/o access mode\n");
fp@1505:
fp@1505: nic->csr = pci_iomap(pdev, (use_io ? 1 : 0), sizeof(struct csr));
fp@1505: if (!nic->csr) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot map device registers, aborting.\n");
fp@1505: err = -ENOMEM;
fp@1505: goto err_out_free_res;
fp@1505: }
fp@1505:
fp@1505: if (ent->driver_data)
fp@1505: nic->flags |= ich;
fp@1505: else
fp@1505: nic->flags &= ~ich;
fp@1505:
fp@1505: e100_get_defaults(nic);
fp@1505:
fp@1505: /* locks must be initialized before calling hw_reset */
fp@1505: spin_lock_init(&nic->cb_lock);
fp@1505: spin_lock_init(&nic->cmd_lock);
fp@1505: spin_lock_init(&nic->mdio_lock);
fp@1505:
fp@1505: /* Reset the device before pci_set_master() in case device is in some
fp@1505: * funky state and has an interrupt pending - hint: we don't have the
fp@1505: * interrupt handler registered yet. */
fp@1505: e100_hw_reset(nic);
fp@1505:
fp@1505: pci_set_master(pdev);
fp@1505:
fp@1505: init_timer(&nic->watchdog);
fp@1505: nic->watchdog.function = e100_watchdog;
fp@1505: nic->watchdog.data = (unsigned long)nic;
fp@1505: init_timer(&nic->blink_timer);
fp@1505: nic->blink_timer.function = e100_blink_led;
fp@1505: nic->blink_timer.data = (unsigned long)nic;
fp@1505:
fp@1505: INIT_WORK(&nic->tx_timeout_task, e100_tx_timeout_task);
fp@1505:
fp@1505: if ((err = e100_alloc(nic))) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot alloc driver memory, aborting.\n");
fp@1505: goto err_out_iounmap;
fp@1505: }
fp@1505:
fp@1505: if ((err = e100_eeprom_load(nic)))
fp@1505: goto err_out_free;
fp@1505:
fp@1505: e100_phy_init(nic);
fp@1505:
fp@1505: memcpy(netdev->dev_addr, nic->eeprom, ETH_ALEN);
fp@1505: memcpy(netdev->perm_addr, nic->eeprom, ETH_ALEN);
fp@1505: if (!is_valid_ether_addr(netdev->perm_addr)) {
fp@1505: if (!eeprom_bad_csum_allow) {
fp@1505: DPRINTK(PROBE, ERR, "Invalid MAC address from "
fp@1505: "EEPROM, aborting.\n");
fp@1505: err = -EAGAIN;
fp@1505: goto err_out_free;
fp@1505: } else {
fp@1505: DPRINTK(PROBE, ERR, "Invalid MAC address from EEPROM, "
fp@1505: "you MUST configure one.\n");
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: /* Wol magic packet can be enabled from eeprom */
fp@1505: if ((nic->mac >= mac_82558_D101_A4) &&
fp@1505: (nic->eeprom[eeprom_id] & eeprom_id_wol)) {
fp@1505: nic->flags |= wol_magic;
fp@1505: device_set_wakeup_enable(&pdev->dev, true);
fp@1505: }
fp@1505:
fp@1505: /* ack any pending wake events, disable PME */
fp@1505: pci_pme_active(pdev, false);
fp@1505:
fp@1505: strcpy(netdev->name, "eth%d");
fp@1505: if ((err = register_netdev(netdev))) {
fp@1505: DPRINTK(PROBE, ERR, "Cannot register net device, aborting.\n");
fp@1505: goto err_out_free;
fp@1505: }
fp@1505:
fp@1505: DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, MAC addr %pM\n",
fp@1505: (unsigned long long)pci_resource_start(pdev, use_io ? 1 : 0),
fp@1505: pdev->irq, netdev->dev_addr);
fp@1505:
fp@1505: return 0;
fp@1505:
fp@1505: err_out_free:
fp@1505: e100_free(nic);
fp@1505: err_out_iounmap:
fp@1505: pci_iounmap(pdev, nic->csr);
fp@1505: err_out_free_res:
fp@1505: pci_release_regions(pdev);
fp@1505: err_out_disable_pdev:
fp@1505: pci_disable_device(pdev);
fp@1505: err_out_free_dev:
fp@1505: pci_set_drvdata(pdev, NULL);
fp@1505: free_netdev(netdev);
fp@1505: return err;
fp@1505: }
fp@1505:
fp@1505: static void __devexit e100_remove(struct pci_dev *pdev)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505:
fp@1505: if (netdev) {
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505: unregister_netdev(netdev);
fp@1505: e100_free(nic);
fp@1505: pci_iounmap(pdev, nic->csr);
fp@1505: free_netdev(netdev);
fp@1505: pci_release_regions(pdev);
fp@1505: pci_disable_device(pdev);
fp@1505: pci_set_drvdata(pdev, NULL);
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: if (netif_running(netdev))
fp@1505: e100_down(nic);
fp@1505: netif_device_detach(netdev);
fp@1505:
fp@1505: pci_save_state(pdev);
fp@1505:
fp@1505: if ((nic->flags & wol_magic) | e100_asf(nic)) {
fp@1505: if (pci_enable_wake(pdev, PCI_D3cold, true))
fp@1505: pci_enable_wake(pdev, PCI_D3hot, true);
fp@1505: } else {
fp@1505: pci_enable_wake(pdev, PCI_D3hot, false);
fp@1505: }
fp@1505:
fp@1505: pci_disable_device(pdev);
fp@1505: pci_set_power_state(pdev, PCI_D3hot);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505:
fp@1505: #ifdef CONFIG_PM
fp@1505: static int e100_resume(struct pci_dev *pdev)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: pci_set_power_state(pdev, PCI_D0);
fp@1505: pci_restore_state(pdev);
fp@1505: /* ack any pending wake events, disable PME */
fp@1505: pci_enable_wake(pdev, 0, 0);
fp@1505:
fp@1505: netif_device_attach(netdev);
fp@1505: if (netif_running(netdev))
fp@1505: e100_up(nic);
fp@1505:
fp@1505: return 0;
fp@1505: }
fp@1505: #endif /* CONFIG_PM */
fp@1505:
fp@1505: static void e100_shutdown(struct pci_dev *pdev)
fp@1505: {
fp@1505: e100_suspend(pdev, PMSG_SUSPEND);
fp@1505: }
fp@1505:
fp@1505: /* ------------------ PCI Error Recovery infrastructure -------------- */
fp@1505: /**
fp@1505: * e100_io_error_detected - called when PCI error is detected.
fp@1505: * @pdev: Pointer to PCI device
fp@1505: * @state: The current pci connection state
fp@1505: */
fp@1505: static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: /* Similar to calling e100_down(), but avoids adapter I/O. */
fp@1505: e100_close(netdev);
fp@1505:
fp@1505: /* Detach; put netif into a state similar to hotplug unplug. */
fp@1505: napi_enable(&nic->napi);
fp@1505: netif_device_detach(netdev);
fp@1505: pci_disable_device(pdev);
fp@1505:
fp@1505: /* Request a slot reset. */
fp@1505: return PCI_ERS_RESULT_NEED_RESET;
fp@1505: }
fp@1505:
fp@1505: /**
fp@1505: * e100_io_slot_reset - called after the pci bus has been reset.
fp@1505: * @pdev: Pointer to PCI device
fp@1505: *
fp@1505: * Restart the card from scratch.
fp@1505: */
fp@1505: static pci_ers_result_t e100_io_slot_reset(struct pci_dev *pdev)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: if (pci_enable_device(pdev)) {
fp@1505: printk(KERN_ERR "e100: Cannot re-enable PCI device after reset.\n");
fp@1505: return PCI_ERS_RESULT_DISCONNECT;
fp@1505: }
fp@1505: pci_set_master(pdev);
fp@1505:
fp@1505: /* Only one device per card can do a reset */
fp@1505: if (0 != PCI_FUNC(pdev->devfn))
fp@1505: return PCI_ERS_RESULT_RECOVERED;
fp@1505: e100_hw_reset(nic);
fp@1505: e100_phy_init(nic);
fp@1505:
fp@1505: return PCI_ERS_RESULT_RECOVERED;
fp@1505: }
fp@1505:
fp@1505: /**
fp@1505: * e100_io_resume - resume normal operations
fp@1505: * @pdev: Pointer to PCI device
fp@1505: *
fp@1505: * Resume normal operations after an error recovery
fp@1505: * sequence has been completed.
fp@1505: */
fp@1505: static void e100_io_resume(struct pci_dev *pdev)
fp@1505: {
fp@1505: struct net_device *netdev = pci_get_drvdata(pdev);
fp@1505: struct nic *nic = netdev_priv(netdev);
fp@1505:
fp@1505: /* ack any pending wake events, disable PME */
fp@1505: pci_enable_wake(pdev, 0, 0);
fp@1505:
fp@1505: netif_device_attach(netdev);
fp@1505: if (netif_running(netdev)) {
fp@1505: e100_open(netdev);
fp@1505: mod_timer(&nic->watchdog, jiffies);
fp@1505: }
fp@1505: }
fp@1505:
fp@1505: static struct pci_error_handlers e100_err_handler = {
fp@1505: .error_detected = e100_io_error_detected,
fp@1505: .slot_reset = e100_io_slot_reset,
fp@1505: .resume = e100_io_resume,
fp@1505: };
fp@1505:
fp@1505: static struct pci_driver e100_driver = {
fp@1505: .name = DRV_NAME,
fp@1505: .id_table = e100_id_table,
fp@1505: .probe = e100_probe,
fp@1505: .remove = __devexit_p(e100_remove),
fp@1505: #ifdef CONFIG_PM
fp@1505: /* Power Management hooks */
fp@1505: .suspend = e100_suspend,
fp@1505: .resume = e100_resume,
fp@1505: #endif
fp@1505: .shutdown = e100_shutdown,
fp@1505: .err_handler = &e100_err_handler,
fp@1505: };
fp@1505:
fp@1505: static int __init e100_init_module(void)
fp@1505: {
fp@1505: if (((1 << debug) - 1) & NETIF_MSG_DRV) {
fp@1505: printk(KERN_INFO PFX "%s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
fp@1505: printk(KERN_INFO PFX "%s\n", DRV_COPYRIGHT);
fp@1505: }
fp@1505: return pci_register_driver(&e100_driver);
fp@1505: }
fp@1505:
fp@1505: static void __exit e100_cleanup_module(void)
fp@1505: {
fp@1505: pci_unregister_driver(&e100_driver);
fp@1505: }
fp@1505:
fp@1505: module_init(e100_init_module);
fp@1505: module_exit(e100_cleanup_module);