11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FarSync WAN driver for Linux (2.6.x kernel version) 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Actually sync driver for X.21, V.35 and V.24 on FarSync T-series cards 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2001-2004 FarSite Communications Ltd. 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * www.farsite.co.uk 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modify it under the terms of the GNU General Public License 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as published by the Free Software Foundation; either version 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2 of the License, or (at your option) any later version. 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Author: R.J.Dunlop <bob.dunlop@farsite.co.uk> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Maintainer: Kevin Curtis <kevin.curtis@farsite.co.uk> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 183f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 193f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/version.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 24d43c36dc6b357fa1806800f18aa30123c747a6d1Alexey Dobriyan#include <linux/sched.h> 255a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 28a6b7a407865aab9f849dd99a71072b7cd1175116Alexey Dobriyan#include <linux/interrupt.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/if.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/hdlc.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "farsync.h" 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module info 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("R.J.Dunlop <bob.dunlop@farsite.co.uk>"); 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FarSync T-Series WAN driver. FarSite Communications Ltd."); 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Driver configuration and global parameters 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ========================================== 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Number of ports (per card) and cards supported 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_PORTS 4 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_CARDS 32 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Default parameters for the link 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_QUEUE_LEN 100 /* At 8Mbps a longer queue length is 550bee8db8f63b099412fdbce5b55b01d9f177951dKrzysztof Hałasa * useful */ 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TXQ_DEPTH 16 /* This one is for the buffering 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of frames on the way down to the card 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so that we can keep the card busy 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and maximise throughput 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_HIGH_WATER_MARK 12 /* Point at which we flow control 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * network layer */ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_LOW_WATER_MARK 8 /* Point at which we remove flow 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * control from network layer */ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_MTU 8000 /* Huge but possible */ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_DEF_MTU 1500 /* Common sane value */ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_TIMEOUT (2*HZ) 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef ARPHRD_RAWHDLC 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARPHRD_MYTYPE ARPHRD_RAWHDLC /* Raw frames */ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARPHRD_MYTYPE ARPHRD_HDLC /* Cisco-HDLC (keepalives etc) */ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 773a070ad1449b1c068a2fac41285ae7548a623485Uwe Kleine-König * Modules parameters and associated variables 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 797665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_txq_low = FST_LOW_WATER_MARK; 807665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_txq_high = FST_HIGH_WATER_MARK; 817665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_max_reads = 7; 827665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_excluded_cards = 0; 837665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_excluded_list[FST_MAX_CARDS]; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_txq_low, int, 0); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_txq_high, int, 0); 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_max_reads, int, 0); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_excluded_cards, int, 0); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_array(fst_excluded_list, int, NULL, 0); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Card shared memory layout 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ========================= 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#pragma pack(1) 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* This information is derived in part from the FarSite FarSync Smc.h 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * file. Unfortunately various name clashes and the non-portability of the 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bit field declarations in that file have meant that I have chosen to 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * recreate the information here. 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The SMC (Shared Memory Configuration) has a version number that is 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incremented every time there is a significant change. This number can 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * be used to check that we have not got out of step with the firmware 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * contained in the .CDE files. 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SMC_VERSION 24 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MEMSIZE 0x100000 /* Size of card memory (1Mb) */ 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SMC_BASE 0x00002000L /* Base offset of the shared memory window main 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configuration structure */ 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BFM_BASE 0x00010000L /* Base offset of the shared memory window DMA 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * buffers */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_TX_BUFFER 8192 /* Size of packet buffers */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_RX_BUFFER 8192 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_SMALL_TX_BUFFER 256 /* Size of obsolete buffs used for DOS diags */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_SMALL_RX_BUFFER 256 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NUM_TX_BUFFER 2 /* Must be power of 2. Fixed by firmware */ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NUM_RX_BUFFER 8 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupt retry time in milliseconds */ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INT_RETRY_TIME 2 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The Am186CH/CC processors support a SmartDMA mode using circular pools 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of buffer descriptors. The structure is almost identical to that used 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the LANCE Ethernet controllers. Details available as PDF from the 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * AMD web site: http://www.amd.com/products/epd/processors/\ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2.16bitcont/3.am186cxfa/a21914/21914.pdf 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct txdesc { /* Transmit descriptor */ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 ladr; /* Low order address of packet. This is a 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linear address in the Am186 memory space 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 hadr; /* High order address. Low 4 bits only, high 4 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bits must be zero 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 bits; /* Status and config */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 bcnt; /* 2s complement of packet size in low 15 bits. 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Transmit terminal count interrupt enable in 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * top bit. 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 unused; /* Not used in Tx */ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct rxdesc { /* Receive descriptor */ 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 ladr; /* Low order address of packet */ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 hadr; /* High order address */ 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 bits; /* Status and config */ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 bcnt; /* 2s complement of buffer size in low 15 bits. 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Receive terminal count interrupt enable in 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * top bit. 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 mcnt; /* Message byte count (15 bits) */ 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert a length into the 15 bit 2's complement */ 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* #define cnv_bcnt(len) (( ~(len) + 1 ) & 0x7FFF ) */ 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Since we need to set the high bit to enable the completion interrupt this 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * can be made a lot simpler 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define cnv_bcnt(len) (-(len)) 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Status and config bits for the above */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMA_OWN 0x80 /* SmartDMA owns the descriptor */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_STP 0x02 /* Tx: start of packet */ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_ENP 0x01 /* Tx: end of packet */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_ERR 0x40 /* Rx: error (OR of next 4 bits) */ 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_FRAM 0x20 /* Rx: framing error */ 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_OFLO 0x10 /* Rx: overflow error */ 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_CRC 0x08 /* Rx: CRC error */ 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_HBUF 0x04 /* Rx: buffer error */ 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_STP 0x02 /* Rx: start of packet */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_ENP 0x01 /* Rx: end of packet */ 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupts from the card are caused by various events which are presented 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in a circular buffer as several events may be processed on one physical int 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_CIRBUFF 32 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct cirbuff { 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rdindex; /* read, then increment and wrap */ 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 wrindex; /* write, then increment and wrap */ 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 evntbuff[MAX_CIRBUFF]; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupt event codes. 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Where appropriate the two low order bits indicate the port number 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLA_CHG 0x18 /* Control signal changed */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLB_CHG 0x19 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLC_CHG 0x1A 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLD_CHG 0x1B 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INIT_CPLT 0x20 /* Initialisation complete */ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INIT_FAIL 0x21 /* Initialisation failed */ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTA_SENT 0x24 /* Abort sent */ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTB_SENT 0x25 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTC_SENT 0x26 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTD_SENT 0x27 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXA_UNDF 0x28 /* Transmission underflow */ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXB_UNDF 0x29 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXC_UNDF 0x2A 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXD_UNDF 0x2B 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define F56_INT 0x2C 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define M32_INT 0x2D 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TE1_ALMA 0x30 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Port physical configuration. See farsync.h for field values */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct port_cfg { 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 lineInterface; /* Physical interface type */ 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 x25op; /* Unused at present */ 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 internalClock; /* 1 => internal clock, 0 => external */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 transparentMode; /* 1 => on, 0 => off */ 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 invertClock; /* 0 => normal, 1 => inverted */ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 padBytes[6]; /* Padding */ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 lineSpeed; /* Speed in bps */ 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 port physical configuration */ 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct su_config { 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dataRate; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 clocking; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 framing; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 structure; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 interface; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 coding; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 lineBuildOut; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 equalizer; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 transparentMode; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 loopMode; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 range; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 txBufferMode; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rxBufferMode; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 startingSlot; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 losThreshold; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 enableIdleCode; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 idleCode; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 spare[44]; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 Status */ 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct su_status { 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 receiveBufferDelay; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 framingErrorCount; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 codeViolationCount; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 crcErrorCount; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 lineAttenuation; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 portStarted; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 lossOfSignal; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 receiveRemoteAlarm; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 alarmIndicationSignal; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 spare[40]; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Finally sling all the above together into the shared memory structure. 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sorry it's a hodge podge of arrays, structures and unused bits, it's been 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * evolving under NT for some time so I guess we're stuck with it. 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The structure starts at offset SMC_BASE. 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See farsync.h for some field values. 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_shared { 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* DMA descriptor rings */ 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rxdesc rxDescrRing[FST_MAX_PORTS][NUM_RX_BUFFER]; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct txdesc txDescrRing[FST_MAX_PORTS][NUM_TX_BUFFER]; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Obsolete small buffers */ 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 smallRxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_SMALL_RX_BUFFER]; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 smallTxBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_SMALL_TX_BUFFER]; 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 taskStatus; /* 0x00 => initialising, 0x01 => running, 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0xFF => halted 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 interruptHandshake; /* Set to 0x01 by adapter to signal interrupt, 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set to 0xEE by host to acknowledge interrupt 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 smcVersion; /* Must match SMC_VERSION */ 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 smcFirmwareVersion; /* 0xIIVVRRBB where II = product ID, VV = major 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version, RR = revision and BB = build 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txa_done; /* Obsolete completion flags */ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxa_done; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txb_done; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxb_done; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txc_done; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxc_done; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txd_done; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxd_done; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mailbox[4]; /* Diagnostics mailbox. Not used */ 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct cirbuff interruptEvent; /* interrupt causes */ 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24IpSts[FST_MAX_PORTS]; /* V.24 control input status */ 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24OpSts[FST_MAX_PORTS]; /* V.24 control output status */ 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct port_cfg portConfig[FST_MAX_PORTS]; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 clockStatus[FST_MAX_PORTS]; /* lsb: 0=> present, 1=> absent */ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cableStatus; /* lsb: 0=> present, 1=> absent */ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txDescrIndex[FST_MAX_PORTS]; /* transmit descriptor ring index */ 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxDescrIndex[FST_MAX_PORTS]; /* receive descriptor ring index */ 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 portMailbox[FST_MAX_PORTS][2]; /* command, modifier */ 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cardMailbox[4]; /* Not used */ 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Number of times the card thinks the host has 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * missed an interrupt by not acknowledging 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * within 2mS (I guess NT has problems) 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 interruptRetryCount; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Driver private data used as an ID. We'll not 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use this as I'd rather keep such things 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in main memory rather than on the PCI bus 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 portHandle[FST_MAX_PORTS]; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Count of Tx underflows for stats */ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 transmitBufferUnderflow[FST_MAX_PORTS]; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Debounced V.24 control input status */ 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24DebouncedSts[FST_MAX_PORTS]; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Adapter debounce timers. Don't touch */ 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ctsTimer[FST_MAX_PORTS]; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ctsTimerRun[FST_MAX_PORTS]; 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dcdTimer[FST_MAX_PORTS]; 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dcdTimerRun[FST_MAX_PORTS]; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 numberOfPorts; /* Number of ports detected at startup */ 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 _reserved[64]; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cardMode; /* Bit-mask to enable features: 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 0: 1 enables LED identify mode 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 portScheduleOffset; 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct su_config suConfig; /* TE1 Bits */ 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct su_status suStatus; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 endOfSmcSignature; /* endOfSmcSignature MUST be the last member of 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the structure and marks the end of shared 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * memory. Adapter code initializes it as 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * END_SIG. 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* endOfSmcSignature value */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define END_SIG 0x12345678 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Mailbox values. (portMailbox) */ 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NOP 0 /* No operation */ 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ACK 1 /* Positive acknowledgement to PC driver */ 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NAK 2 /* Negative acknowledgement to PC driver */ 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STARTPORT 3 /* Start an HDLC port */ 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STOPPORT 4 /* Stop an HDLC port */ 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABORTTX 5 /* Abort the transmitter for a port */ 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETV24O 6 /* Set V24 outputs */ 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* PLX Chip Register Offsets */ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CNTRL_9052 0x50 /* Control Register */ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CNTRL_9054 0x6c /* Control Register */ 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTCSR_9052 0x4c /* Interrupt control/status register */ 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTCSR_9054 0x68 /* Interrupt control/status register */ 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9054 DMA Registers */ 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we will be using DMA Channel 0 for copying rx data 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Channel 1 for copying tx data 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMODE0 0x80 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAPADR0 0x84 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMALADR0 0x88 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMASIZ0 0x8c 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADPR0 0x90 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMODE1 0x94 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAPADR1 0x98 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMALADR1 0x9c 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMASIZ1 0xa0 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADPR1 0xa4 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMACSR0 0xa8 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMACSR1 0xa9 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAARB 0xac 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMATHR 0xb0 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADAC0 0xb4 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADAC1 0xb8 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMARBR 0xac 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MIN_DMA_LEN 64 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RX_DMA_INT 0x01 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_DMA_INT 0x02 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_CARD_INT 0x04 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Larger buffers are positioned in memory at offset BFM_BASE */ 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct buf_window { 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 txBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_TX_BUFFER]; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_RX_BUFFER]; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Calculate offset of a buffer object within the shared memory window */ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUF_OFFSET(X) (BFM_BASE + offsetof(struct buf_window, X)) 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#pragma pack() 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Device driver private information 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ================================= 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Per port (line or channel) information 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_port_info { 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev; /* Device struct - must be first */ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; /* Card we're associated with */ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; /* Port index on the card */ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int hwif; /* Line hardware (lineInterface copy) */ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int run; /* Port is running */ 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; /* Normal or FarSync raw */ 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxpos; /* Next Rx buffer to use */ 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txpos; /* Next Tx buffer to use */ 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txipos; /* Next Tx buffer to check for free */ 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int start; /* Indication of start/stop to network */ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A sixteen entry transmit queue 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txqs; /* index to get next buffer to tx */ 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txqe; /* index to queue next packet */ 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *txq[FST_TXQ_DEPTH]; /* The queue */ 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxqdepth; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Per card information 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_card_info { 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __iomem *mem; /* Card memory mapped to kernel space */ 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __iomem *ctlmem; /* Control memory for PCI cards */ 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int phys_mem; /* Physical memory window address */ 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int phys_ctlmem; /* Physical control memory address */ 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int irq; /* Interrupt request line number */ 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int nports; /* Number of serial ports */ 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* Type index of card */ 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int state; /* State of card */ 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t card_lock; /* Lock for SMP access */ 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short pci_conf; /* PCI card config in I/O space */ 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Per port info */ 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info ports[FST_MAX_PORTS]; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *device; /* Information about the pci device */ 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int card_no; /* Inst of the card on the system */ 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int family; /* TxP or TxU */ 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dmarx_in_progress; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dmatx_in_progress; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long int_count; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long int_time_ave; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *rx_dma_handle_host; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t rx_dma_handle_card; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *tx_dma_handle_host; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t tx_dma_handle_card; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *dma_skb_rx; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *dma_port_rx; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *dma_port_tx; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_len_rx; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_len_tx; 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_txpos; 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_rxpos; 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert an HDLC device pointer into a port info pointer and similar */ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define dev_to_port(D) (dev_to_hdlc(D)->priv) 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define port_to_dev(P) ((P)->dev) 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Shared memory window access macros 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We have a nice memory based structure above, which could be directly 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mapped on i386 but might not work on other architectures unless we use 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the readb,w,l and writeb,w,l macros. Unfortunately these macros take 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * physical offsets so we have to convert. The only saving grace is that 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this should all collapse back to a simple indirection eventually. 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WIN_OFFSET(X) ((long)&(((struct fst_shared *)SMC_BASE)->X)) 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDB(C,E) readb ((C)->mem + WIN_OFFSET(E)) 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDW(C,E) readw ((C)->mem + WIN_OFFSET(E)) 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDL(C,E) readl ((C)->mem + WIN_OFFSET(E)) 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRB(C,E,B) writeb ((B), (C)->mem + WIN_OFFSET(E)) 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRW(C,E,W) writew ((W), (C)->mem + WIN_OFFSET(E)) 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRL(C,E,L) writel ((L), (C)->mem + WIN_OFFSET(E)) 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Debug support 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fst_debug_mask = { FST_DEBUG }; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Most common debug activity is to print something if the corresponding bit 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is set in the debug mask. Note: this uses a non-ANSI extension in GCC to 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * support variable numbers of macro parameters. The inverted if prevents us 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * eating someone else's else clause. 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5173f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches#define dbg(F, fmt, args...) \ 5183f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perchesdo { \ 5193f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches if (fst_debug_mask & (F)) \ 5203f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches printk(KERN_DEBUG pr_fmt(fmt), ##args); \ 5213f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches} while (0) 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 5233f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches#define dbg(F, fmt, args...) \ 5243f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perchesdo { \ 5253f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches if (0) \ 5263f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches printk(KERN_DEBUG pr_fmt(fmt), ##args); \ 5273f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches} while (0) 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI ID lookup table 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 533a3aa18842a5303fc28fcc4d57dbd16618bd830a0Alexey Dobriyanstatic DEFINE_PCI_DEVICE_TABLE(fst_pci_dev_id) = { 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2P, PCI_ANY_ID, 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T2P}, 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4P, PCI_ANY_ID, 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T4P}, 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T1U, PCI_ANY_ID, 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T1U}, 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2U, PCI_ANY_ID, 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T2U}, 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4U, PCI_ANY_ID, 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T4U}, 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1, PCI_ANY_ID, 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_TE1}, 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1C, PCI_ANY_ID, 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_TE1}, 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {0,} /* End */ 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, fst_pci_dev_id); 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Device Driver Work Queues 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we don't spend too much time processing events in the 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Interrupt Service routine, we will declare a work queue per Card 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and make the ISR schedule a task in the queue for later execution. 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In the 2.4 Kernel we used to use the immediate queue for BH's 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Now that they are gone, tasklets seem to be much better than work 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queues. 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void do_bottom_half_tx(struct fst_card_info *card); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void do_bottom_half_rx(struct fst_card_info *card); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fst_process_tx_work_q(unsigned long work_q); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fst_process_int_work_q(unsigned long work_q); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5757665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q, 0); 5767665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic DECLARE_TASKLET(fst_int_task, fst_process_int_work_q, 0); 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5787665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic struct fst_card_info *fst_card_array[FST_MAX_CARDS]; 5797665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic spinlock_t fst_work_q_lock; 5807665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic u64 fst_work_txq; 5817665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic u64 fst_work_intq; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_q_work_item(u64 * queue, int card_index) 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 mask; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Making an entry in the queue is simply a matter of setting 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a bit for the card indicating that there is work to do in the 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bottom half for the card. Note the limitation of 64 cards. 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * That ought to be enough 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = 1 << card_index; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *queue |= mask; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_tx_work_q(unsigned long /*void **/work_q) 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 work_txq; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_process_tx_work_q\n"); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_txq = fst_work_txq; 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_work_txq = 0; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Call the bottom half for each card with work waiting 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) { 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (work_txq & 0x01) { 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_card_array[i] != NULL) { 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Calling tx bh for card %d\n", i); 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_tx(fst_card_array[i]); 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_txq = work_txq >> 1; 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_int_work_q(unsigned long /*void **/work_q) 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 work_intq; 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "fst_process_int_work_q\n"); 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_intq = fst_work_intq; 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_work_intq = 0; 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Call the bottom half for each card with work waiting 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) { 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (work_intq & 0x01) { 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_card_array[i] != NULL) { 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Calling rx & tx bh for card %d\n", i); 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_rx(fst_card_array[i]); 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_tx(fst_card_array[i]); 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_intq = work_intq >> 1; 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Card control functions 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ====================== 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Place the processor in reset state 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Used to be a simple write to card control space but a glitch in the latest 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * AMD Am186CH processor means that we now have to do it by asserting and de- 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * asserting the PLX chip PCI Adapter Software Reset. Bit 30 in CNTRL register 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * at offset 9052_CNTRL. Note the updates for the TXU. 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cpureset(struct fst_card_info *card) 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char interrupt_line_register; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long j = jiffies + 1; 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int regval; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (card->device, PCI_INTERRUPT_LINE, &interrupt_line_register)) { 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Error in reading interrupt line register\n"); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Assert PLX software reset and Am186 hardware reset 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and then deassert the PLX software reset but 186 still in reset 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x440f, card->pci_conf + CNTRL_9054 + 2); 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are delaying here to allow the 9054 to reset itself 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies + 1; 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (jiffies < j) 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Do nothing */ ; 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x240f, card->pci_conf + CNTRL_9054 + 2); 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are delaying here to allow the 9054 to reload its eeprom 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies + 1; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (jiffies < j) 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Do nothing */ ; 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_write_config_byte 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (card->device, PCI_INTERRUPT_LINE, interrupt_line_register)) { 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Error in writing interrupt line register\n"); 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regval = inl(card->pci_conf + CNTRL_9052); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(regval | 0x40000000, card->pci_conf + CNTRL_9052); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(regval & ~0x40000000, card->pci_conf + CNTRL_9052); 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Release the processor from reset 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cpurelease(struct fst_card_info *card) 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Force posted writes to complete 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->mem); 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Release LRESET DO = 1 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Then release Local Hold, DO = 1 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040e, card->pci_conf + CNTRL_9054 + 2); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->ctlmem); 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Clear the cards interrupt flag 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_clear_intr(struct fst_card_info *card) 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->ctlmem); 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Poke the appropriate PLX chip register (same as enabling interrupts) 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0543, card->pci_conf + INTCSR_9052); 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Enable card interrupts 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_enable_intr(struct fst_card_info *card) 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x0f0c0900, card->pci_conf + INTCSR_9054); 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0543, card->pci_conf + INTCSR_9052); 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Disable card interrupts 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_disable_intr(struct fst_card_info *card) 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00000000, card->pci_conf + INTCSR_9054); 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0000, card->pci_conf + INTCSR_9052); 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Process the result of trying to pass a received frame up the stack 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_rx_status(int rx_status, char *name) 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rx_status) { 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case NET_RX_SUCCESS: 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Nothing to do here 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case NET_RX_DROP: 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "%s: Received packet dropped\n", name); 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Initilaise DMA for PLX 9054 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init_dma(struct fst_card_info *card) 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is only required for the PLX 9054 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_master(card->device); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00020441, card->pci_conf + DMAMODE0); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00020441, card->pci_conf + DMAMODE1); 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x0, card->pci_conf + DMATHR); 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Tx dma complete interrupt 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_dma_complete(struct fst_card_info *card, struct fst_port_info *port, 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, int txpos) 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Everything is now set, just tell the card to go 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_tx_dma_complete\n"); 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[port->index][txpos].bits, 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DMA_OWN | TX_STP | TX_ENP); 836198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_packets++; 837198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_bytes += len; 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark it for our own raw sockets interface 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 844ab611487d8ada506e511d2b8f22fb8e7be9939b9Alexey Dobriyanstatic __be16 farsync_type_trans(struct sk_buff *skb, struct net_device *dev) 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->dev = dev; 847459a98ed881802dee55897441bc7f77af614368eArnaldo Carvalho de Melo skb_reset_mac_header(skb); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->pkt_type = PACKET_HOST; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return htons(ETH_P_CUST); 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx dma complete interrupt 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_rx_dma_complete(struct fst_card_info *card, struct fst_port_info *port, 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, struct sk_buff *skb, int rxp) 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_status; 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_rx_dma_complete\n"); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(skb_put(skb, len), card->rx_dma_handle_host, len); 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset buffer descriptor */ 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Update stats */ 870198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_packets++; 871198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_bytes += len; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Push upstream */ 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "Pushing the frame up the stack\n"); 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = farsync_type_trans(skb, dev); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_status = netif_rx(skb); 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_process_rx_status(rx_status, port_to_dev(port)->name); 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rx_status == NET_RX_DROP) 882198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Receive a frame through the DMA 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 8895d337d6f64d150b6577972cc23f709ee85f66881David S. Millerfst_rx_dma(struct fst_card_info *card, dma_addr_t skb, 8905d337d6f64d150b6577972cc23f709ee85f66881David S. Miller dma_addr_t mem, int len) 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine will setup the DMA and start it 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8965d337d6f64d150b6577972cc23f709ee85f66881David S. Miller dbg(DBG_RX, "In fst_rx_dma %lx %lx %d\n", 8975d337d6f64d150b6577972cc23f709ee85f66881David S. Miller (unsigned long) skb, (unsigned long) mem, len); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmarx_in_progress) { 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "In fst_rx_dma while dma in progress\n"); 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9025d337d6f64d150b6577972cc23f709ee85f66881David S. Miller outl(skb, card->pci_conf + DMAPADR0); /* Copy to here */ 9035d337d6f64d150b6577972cc23f709ee85f66881David S. Miller outl(mem, card->pci_conf + DMALADR0); /* from here */ 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(len, card->pci_conf + DMASIZ0); /* for this length */ 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00000000c, card->pci_conf + DMADPR0); /* In this direction */ 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We use the dmarx_in_progress flag to flag the channel as busy 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmarx_in_progress = 1; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x03, card->pci_conf + DMACSR0); /* Start the transfer */ 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Send a frame through the DMA 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_dma(struct fst_card_info *card, unsigned char *skb, 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *mem, int len) 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine will setup the DMA and start it. 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "In fst_tx_dma %p %p %d\n", skb, mem, len); 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmatx_in_progress) { 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "In fst_tx_dma while dma in progress\n"); 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) skb, card->pci_conf + DMAPADR1); /* Copy from here */ 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) mem, card->pci_conf + DMALADR1); /* to here */ 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(len, card->pci_conf + DMASIZ1); /* for this length */ 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x000000004, card->pci_conf + DMADPR1); /* In this direction */ 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We use the dmatx_in_progress to flag the channel as busy 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress = 1; 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x03, card->pci_conf + DMACSR1); /* Start the transfer */ 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Issue a Mailbox command for a port. 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note we issue them on a fire and forget basis, not expecting to see an 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * error and not waiting for completion. 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_issue_cmd(struct fst_port_info *port, unsigned short cmd) 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short mbval; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int safety; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mbval = FST_RDW(card, portMailbox[port->index][0]); 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds safety = 0; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait for any previous command to complete */ 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (mbval > NAK) { 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 9623173c8907ffb2c64456142da3df2bd0500bd59e0Nishanth Aravamudan schedule_timeout_uninterruptible(1); 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++safety > 2000) { 9663f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Mailbox safety timeout\n"); 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mbval = FST_RDW(card, portMailbox[port->index][0]); 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (safety > 0) { 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_CMD, "Mailbox clear after %d jiffies\n", safety); 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mbval == NAK) { 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_CMD, "issue_cmd: previous command was NAK'd\n"); 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portMailbox[port->index][0], cmd); 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd == ABORTTX || cmd == STARTPORT) { 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txipos = 0; 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Port output signals control 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_op_raise(struct fst_port_info *port, unsigned int outputs) 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outputs |= FST_RDL(port->card, v24OpSts[port->index]); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(port->card, v24OpSts[port->index], outputs); 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, SETV24O); 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_op_lower(struct fst_port_info *port, unsigned int outputs) 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outputs = ~outputs & FST_RDL(port->card, v24OpSts[port->index]); 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(port->card, v24OpSts[port->index], outputs); 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, SETV24O); 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup port Rx buffers 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_rx_config(struct fst_port_info *port) 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int offset; 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < NUM_RX_BUFFER; i++) { 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset = BUF_OFFSET(rxBuffer[pi][i][0]); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].ladr, (u16) offset); 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][i].hadr, (u8) (offset >> 16)); 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].bcnt, cnv_bcnt(LEN_RX_BUFFER)); 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].mcnt, LEN_RX_BUFFER); 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][i].bits, DMA_OWN); 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = 0; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup port Tx buffers 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_config(struct fst_port_info *port) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int offset; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < NUM_TX_BUFFER; i++) { 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset = BUF_OFFSET(txBuffer[pi][i][0]); 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][i].ladr, (u16) offset); 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[pi][i].hadr, (u8) (offset >> 16)); 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][i].bcnt, 0); 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[pi][i].bits, 0); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txipos = 0; 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 Alarm change interrupt event 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_te1_alarm(struct fst_card_info *card, struct fst_port_info *port) 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 los; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rra; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 ais; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds los = FST_RDB(card, suStatus.lossOfSignal); 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rra = FST_RDB(card, suStatus.receiveRemoteAlarm); 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ais = FST_RDB(card, suStatus.alarmIndicationSignal); 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (los) { 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Lost the link 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_carrier_ok(port_to_dev(port))) { 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Net carrier off\n"); 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Link available 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(port_to_dev(port))) { 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Net carrier on\n"); 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (los) 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert LOS Alarm\n"); 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert LOS Alarm\n"); 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rra) 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert RRA Alarm\n"); 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert RRA Alarm\n"); 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ais) 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert AIS Alarm\n"); 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert AIS Alarm\n"); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Control signal change interrupt event 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_ctlchg(struct fst_card_info *card, struct fst_port_info *port) 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int signals; 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds signals = FST_RDL(card, v24DebouncedSts[port->index]); 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signals & (((port->hwif == X21) || (port->hwif == X21D)) 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? IPSTS_INDICATE : IPSTS_DCD)) { 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(port_to_dev(port))) { 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "DCD active\n"); 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_carrier_ok(port_to_dev(port))) { 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "DCD lost\n"); 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Log Rx Errors 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_log_rx_error(struct fst_card_info *card, struct fst_port_info *port, 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits, int rxp, unsigned short len) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1146198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa /* 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increment the appropriate error counter 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1149198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_errors++; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_OFLO) { 1151198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_fifo_errors++; 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx fifo error on card %d port %d buffer %d\n", 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index, rxp); 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_CRC) { 1156198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_crc_errors++; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx crc error on card %d port %d\n", 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_FRAM) { 1161198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_frame_errors++; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx frame error on card %d port %d\n", 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits == (RX_STP | RX_ENP)) { 1166198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_length_errors++; 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx length error (%d) on card %d port %d\n", 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len, card->card_no, port->index); 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx Error Recovery 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_recover_rx_error(struct fst_card_info *card, struct fst_port_info *port, 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits, int rxp, unsigned short len) 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Discard buffer descriptors until we see the start of the 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * next frame. Note that for long frames this could be in 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a subsequent interrupt. 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((dmabits & (DMA_OWN | RX_STP)) == 0) { 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++i > NUM_RX_BUFFER) { 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "intr_rx: Discarding more bufs" 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " than we have\n"); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits); 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "DMA Bits of next buffer was %x\n", dmabits); 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "There were %d subsequent buffers in error\n", i); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Discard the terminal buffer */ 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(dmabits & DMA_OWN)) { 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx complete interrupt 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_rx(struct fst_card_info *card, struct fst_port_info *port) 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxp; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_status; 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short len; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check we have a buffer to process */ 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = port->rxpos; 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits); 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & DMA_OWN) { 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX | DBG_INTR, "intr_rx: No buffer port %d pos %d\n", 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi, rxp); 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmarx_in_progress) { 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Get buffer length */ 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = FST_RDW(card, rxDescrRing[pi][rxp].mcnt); 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Discard the CRC */ 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len -= 2; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len == 0) { 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This seems to happen on the TE1 interface sometimes 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so throw the frame away and log the event. 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12463f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Frame received with 0 length. Card %d Port %d\n", 12473f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches card->card_no, port->index); 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Return descriptor to card */ 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check buffer length and for other errors. We insist on one packet 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in one buffer. This simplifies things greatly and since we've 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated 8K it shouldn't be a real world limitation 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "intr_rx: %d,%d: flags %x len %d\n", pi, rxp, dmabits, len); 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits != (RX_STP | RX_ENP) || len > LEN_RX_BUFFER - 2) { 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_log_rx_error(card, port, dmabits, rxp, len); 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_recover_rx_error(card, port, dmabits, rxp, len); 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Allocate SKB */ 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((skb = dev_alloc_skb(len)) == NULL) { 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "intr_rx: can't allocate buffer\n"); 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Return descriptor to card */ 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We know the length we need to receive, len. 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's not worth using the DMA for reads of less than 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FST_MIN_DMA_LEN 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((len < FST_MIN_DMA_LEN) || (card->family == FST_FAMILY_TXP)) { 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy_fromio(skb_put(skb, len), 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->mem + BUF_OFFSET(rxBuffer[pi][rxp][0]), 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len); 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset buffer descriptor */ 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Update stats */ 1296198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_packets++; 1297198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_bytes += len; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Push upstream */ 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "Pushing frame up the stack\n"); 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = farsync_type_trans(skb, dev); 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_status = netif_rx(skb); 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_process_rx_status(rx_status, port_to_dev(port)->name); 1307198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa if (rx_status == NET_RX_DROP) 1308198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_skb_rx = skb; 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_port_rx = port; 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_rx = len; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_rxpos = rxp; 13145d337d6f64d150b6577972cc23f709ee85f66881David S. Miller fst_rx_dma(card, card->rx_dma_handle_card, 13155d337d6f64d150b6577972cc23f709ee85f66881David S. Miller BUF_OFFSET(rxBuffer[pi][rxp][0]), len); 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxp != port->rxpos) { 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "About to increment rxpos by more than 1\n"); 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "rxp = %d rxpos = %d\n", rxp, port->rxpos); 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The bottom halfs to the ISR 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdo_bottom_half_tx(struct fst_card_info *card) 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Find a free buffer for the transmit 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Step through each port on this card 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "do_bottom_half_tx\n"); 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) { 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!port->run) 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1350198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev = port_to_dev(port); 1351198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa while (!(FST_RDB(card, txDescrRing[pi][port->txpos].bits) & 13528e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches DMA_OWN) && 13538e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches !(card->dmatx_in_progress)) { 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There doesn't seem to be a txdone event per-se 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We seem to have to deduce it, by checking the DMA_OWN 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bit on the next buffer we think we can use 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((txq_length = port->txqe - port->txqs) < 0) { 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the case where one has wrapped and the 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maths gives us a negative number 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = txq_length + FST_TXQ_DEPTH; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length > 0) { 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There is something to send 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb = port->txq[port->txqs]; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs++; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->txqs == FST_TXQ_DEPTH) { 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs = 0; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy the data and set the required indicators on the 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * card. 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][port->txpos].bcnt, 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnv_bcnt(skb->len)); 13858e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches if ((skb->len < FST_MIN_DMA_LEN) || 13868e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches (card->family == FST_FAMILY_TXP)) { 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Enqueue the packet with normal io */ 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy_toio(card->mem + 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUF_OFFSET(txBuffer[pi] 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [port-> 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txpos][0]), 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->data, skb->len); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txDescrRing[pi][port->txpos]. 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bits, 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DMA_OWN | TX_STP | TX_ENP); 1397198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_packets++; 1398198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_bytes += skb->len; 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Or do it through dma */ 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(card->tx_dma_handle_host, 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->data, skb->len); 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_port_tx = port; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_tx = skb->len; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_txpos = port->txpos; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_dma(card, 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (char *) card-> 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_dma_handle_card, 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (char *) 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUF_OFFSET(txBuffer[pi] 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [port->txpos][0]), 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->len); 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++port->txpos >= NUM_TX_BUFFER) 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we have flow control on, can we now release it? 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->start) { 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length < fst_txq_low) { 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(port_to_dev 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (port)); 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Nothing to send so break out of the while loop 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdo_bottom_half_rx(struct fst_card_info *card) 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_count = 0; 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check for rx completions on all ports on this card */ 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "do_bottom_half_rx\n"); 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) { 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!port->run) 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(FST_RDB(card, rxDescrRing[pi][port->rxpos].bits) 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds & DMA_OWN) && !(card->dmarx_in_progress)) { 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rx_count > fst_max_reads) { 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't spend forever in receive processing 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Schedule another event 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_intq, card->card_no); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_int_task); 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* Leave the loop */ 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_rx(card, port); 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_count++; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The interrupt service routine 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dev_id is our fst_card_info pointer 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14727665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic irqreturn_t 147328fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzikfst_intr(int dummy, void *dev_id) 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 147528fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzik struct fst_card_info *card = dev_id; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rdidx; /* Event buffer indices */ 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int wridx; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int event; /* Actual event for processing */ 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int dma_intcsr = 0; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int do_card_interrupt; 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int int_retry_count; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Check to see if the interrupt was for this card 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return if not 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that the call to clear the interrupt is important 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 148928fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzik dbg(DBG_INTR, "intr: %d %p\n", card->irq, card); 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state != FST_RUNNING) { 14913f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Interrupt received for card %d in a non running state (%d)\n", 14923f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches card->card_no, card->state); 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It is possible to really be running, i.e. we have re-loaded 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a running card 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Clear and reprime the interrupt source 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_clear_intr(card); 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Clear and reprime the interrupt source */ 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_clear_intr(card); 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Is the interrupt for this card (handshake == 1) 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt = 0; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDB(card, interruptHandshake) == 1) { 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_CARD_INT; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set the software acknowledge */ 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptHandshake, 0xEE); 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Is it a DMA Interrupt 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_intcsr = inl(card->pci_conf + INTCSR_9054); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dma_intcsr & 0x00200000) { 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DMA Channel 0 (Rx transfer complete) 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "DMA Rx xfer complete\n"); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x8, card->pci_conf + DMACSR0); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_rx_dma_complete(card, card->dma_port_rx, 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_rx, card->dma_skb_rx, 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_rxpos); 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmarx_in_progress = 0; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_RX_DMA_INT; 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dma_intcsr & 0x00400000) { 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DMA Channel 1 (Tx transfer complete) 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "DMA Tx xfer complete\n"); 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x8, card->pci_conf + DMACSR1); 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_dma_complete(card, card->dma_port_tx, 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_tx, card->dma_txpos); 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress = 0; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_TX_DMA_INT; 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Have we been missing Interrupts 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int_retry_count = FST_RDL(card, interruptRetryCount); 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (int_retry_count) { 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Card %d int_retry_count is %d\n", 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, int_retry_count); 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, interruptRetryCount, 0); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!do_card_interrupt) { 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Scehdule the bottom half of the ISR */ 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_intq, card->card_no); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_int_task); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drain the event queue */ 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rdidx = FST_RDB(card, interruptEvent.rdindex) & 0x1f; 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wridx = FST_RDB(card, interruptEvent.wrindex) & 0x1f; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (rdidx != wridx) { 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds event = FST_RDB(card, interruptEvent.evntbuff[rdidx]); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = &card->ports[event & 0x03]; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Processing Interrupt event: %x\n", event); 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (event) { 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TE1_ALMA: 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "TE1 Alarm intr\n"); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_te1_alarm(card, port); 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLA_CHG: 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLB_CHG: 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLC_CHG: 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLD_CHG: 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_ctlchg(card, port); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTA_SENT: 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTB_SENT: 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTC_SENT: 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTD_SENT: 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Abort complete port %d\n", port->index); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXA_UNDF: 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXB_UNDF: 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXC_UNDF: 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXD_UNDF: 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Difficult to see how we'd get this given that we 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * always load up the entire packet for DMA. 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Tx underflow port %d\n", port->index); 1602198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa port_to_dev(port)->stats.tx_errors++; 1603198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa port_to_dev(port)->stats.tx_fifo_errors++; 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx underflow on card %d port %d\n", 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case INIT_CPLT: 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INIT, "Card init OK intr\n"); 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case INIT_FAIL: 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INIT, "Card init FAILED intr\n"); 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_IFAILED; 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 16183f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("intr: unknown card event %d. ignored\n", event); 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Bump and wrap the index */ 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++rdidx >= MAX_CIRBUFF) 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rdidx = 0; 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptEvent.rdindex, rdidx); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Check that the shared memory configuration is one that we can handle 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and that some basic parameters are correct 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscheck_started_ok(struct fst_card_info *card) 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check structure version and end marker */ 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDW(card, smcVersion) != SMC_VERSION) { 16403f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Bad shared memory version %d expected %d\n", 16413f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches FST_RDW(card, smcVersion), SMC_VERSION); 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_BADVERSION; 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDL(card, endOfSmcSignature) != END_SIG) { 16463f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Missing shared memory signature\n"); 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_BADVERSION; 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Firmware status flag, 0x00 = initialising, 0x01 = OK, 0xFF = fail */ 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i = FST_RDB(card, taskStatus)) == 0x01) { 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RUNNING; 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (i == 0xFF) { 16543f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Firmware initialisation failed. Card halted\n"); 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_HALTED; 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (i != 0x00) { 16583f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Unknown firmware status 0x%x\n", i); 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_HALTED; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Finally check the number of ports reported by firmware against the 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * number we assumed at card detection. Should never happen with 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * existing firmware etc so we just report it for the moment. 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDL(card, numberOfPorts) != card->nports) { 1668e8c122f450d0b83d7a15535ba49e55ad21a9e63fJoe Perches pr_warn("Port count mismatch on card %d. Firmware thinks %d we say %d\n", 1669e8c122f450d0b83d7a15535ba49e55ad21a9e63fJoe Perches card->card_no, 1670e8c122f450d0b83d7a15535ba49e55ad21a9e63fJoe Perches FST_RDL(card, numberOfPorts), card->nports); 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_conf_from_info(struct fst_card_info *card, struct fst_port_info *port, 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info *info) 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char my_framing; 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set things according to the user set valid flags 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Several of the old options have been invalidated/replaced by the 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * generic hdlc package. 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = 0; 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_PROTO) { 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->proto == FST_RAW) 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_RAW; 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_GEN_HDLC; 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_CABLE) 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_SPEED) 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_PHASE) 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[port->index].invertClock, 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->invertClock); 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_MODE) 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, cardMode, info->cardMode); 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_TE1) { 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, suConfig.dataRate, info->lineSpeed); 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.clocking, info->clockSource); 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_E1; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == E1) 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_E1; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == T1) 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_T1; 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == J1) 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_J1; 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.framing, my_framing); 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.structure, info->structure); 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.interface, info->interface); 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.coding, info->coding); 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.lineBuildOut, info->lineBuildOut); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.equalizer, info->equalizer); 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.transparentMode, info->transparentMode); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.loopMode, info->loopMode); 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.range, info->range); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.txBufferMode, info->txBufferMode); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.rxBufferMode, info->rxBufferMode); 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.startingSlot, info->startingSlot); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.losThreshold, info->losThreshold); 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->idleCode) 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.enableIdleCode, 1); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.enableIdleCode, 0); 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.idleCode, info->idleCode); 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_TE1) { 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Setting TE1 data\n"); 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Line Speed = %d\n", info->lineSpeed); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Start slot = %d\n", info->startingSlot); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Clock source = %d\n", info->clockSource); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Framing = %d\n", my_framing); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Structure = %d\n", info->structure); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("interface = %d\n", info->interface); 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Coding = %d\n", info->coding); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Line build out = %d\n", info->lineBuildOut); 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Equaliser = %d\n", info->equalizer); 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Transparent mode = %d\n", 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->transparentMode); 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Loop mode = %d\n", info->loopMode); 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Range = %d\n", info->range); 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Tx Buffer mode = %d\n", info->txBufferMode); 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Rx Buffer mode = %d\n", info->rxBufferMode); 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("LOS Threshold = %d\n", info->losThreshold); 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Idle Code = %d\n", info->idleCode); 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_DEBUG) { 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_debug_mask = info->debug; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsgather_conf_info(struct fst_card_info *card, struct fst_port_info *port, 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info *info) 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(info, 0, sizeof (struct fstioc_info)); 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->kernelVersion = LINUX_VERSION_CODE; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->nports = card->nports; 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = card->type; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->state = card->state; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->proto = FST_GEN_HDLC; 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->index = i; 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->debug = fst_debug_mask; 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only mark information as valid if card is running. 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copy the data anyway in case it is useful for diagnostics 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->valid = ((card->state == FST_RUNNING) ? FSTVAL_ALL : FSTVAL_CARD) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | FSTVAL_DEBUG 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineInterface = FST_RDW(card, portConfig[i].lineInterface); 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->internalClock = FST_RDB(card, portConfig[i].internalClock); 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineSpeed = FST_RDL(card, portConfig[i].lineSpeed); 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->invertClock = FST_RDB(card, portConfig[i].invertClock); 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->v24IpSts = FST_RDL(card, v24IpSts[i]); 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->v24OpSts = FST_RDL(card, v24OpSts[i]); 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->clockStatus = FST_RDW(card, clockStatus[i]); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = FST_RDW(card, cableStatus); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cardMode = FST_RDW(card, cardMode); 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->smcFirmwareVersion = FST_RDL(card, smcFirmwareVersion); 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The T2U can report cable presence for both A or B 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in bits 0 and 1 of cableStatus. See which port we are and 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do the mapping. 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->index == 0) { 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port A 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus & 1; 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port B 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus >> 1; 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus & 1; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Some additional bits if we are TE1 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->type == FST_TYPE_TE1) { 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineSpeed = FST_RDL(card, suConfig.dataRate); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->clockSource = FST_RDB(card, suConfig.clocking); 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->framing = FST_RDB(card, suConfig.framing); 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->structure = FST_RDB(card, suConfig.structure); 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->interface = FST_RDB(card, suConfig.interface); 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->coding = FST_RDB(card, suConfig.coding); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineBuildOut = FST_RDB(card, suConfig.lineBuildOut); 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->equalizer = FST_RDB(card, suConfig.equalizer); 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->loopMode = FST_RDB(card, suConfig.loopMode); 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->range = FST_RDB(card, suConfig.range); 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->txBufferMode = FST_RDB(card, suConfig.txBufferMode); 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->rxBufferMode = FST_RDB(card, suConfig.rxBufferMode); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->startingSlot = FST_RDB(card, suConfig.startingSlot); 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->losThreshold = FST_RDB(card, suConfig.losThreshold); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDB(card, suConfig.enableIdleCode)) 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->idleCode = FST_RDB(card, suConfig.idleCode); 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->idleCode = 0; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->receiveBufferDelay = 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.receiveBufferDelay); 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->framingErrorCount = 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.framingErrorCount); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->codeViolationCount = 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.codeViolationCount); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->crcErrorCount = FST_RDL(card, suStatus.crcErrorCount); 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineAttenuation = FST_RDL(card, suStatus.lineAttenuation); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lossOfSignal = FST_RDB(card, suStatus.lossOfSignal); 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->receiveRemoteAlarm = 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDB(card, suStatus.receiveRemoteAlarm); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->alarmIndicationSignal = 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDB(card, suStatus.alarmIndicationSignal); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_set_iface(struct fst_card_info *card, struct fst_port_info *port, 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ifreq *ifr) 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync_serial_settings sync; 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size != sizeof (sync)) { 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (&sync, ifr->ifr_settings.ifs_ifsu.sync, sizeof (sync))) { 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sync.loopback) 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (ifr->ifr_settings.type) { 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V35: 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, V35); 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = V35; 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V24: 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, V24); 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = V24; 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21: 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, X21); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = X21; 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21D: 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, X21D); 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = X21D; 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_T1: 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, T1); 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = T1; 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_E1: 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, E1); 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = E1; 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_SYNC_SERIAL: 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (sync.clock_type) { 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CLOCK_EXT: 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[i].internalClock, EXTCLK); 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CLOCK_INT: 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[i].internalClock, INTCLK); 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, portConfig[i].lineSpeed, sync.clock_rate); 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_get_iface(struct fst_card_info *card, struct fst_port_info *port, 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ifreq *ifr) 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync_serial_settings sync; 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* First check what line type is set, we'll default to reporting X.21 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if nothing is set as IF_IFACE_SYNC_SERIAL implies it can't be 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changed 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (port->hwif) { 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case E1: 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_E1; 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case T1: 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_T1; 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case V35: 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_V35; 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case V24: 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_V24; 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case X21D: 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_X21D; 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case X21: 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_X21; 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size == 0) { 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* only type requested */ 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size < sizeof (sync)) { 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Lucky card and linux use same encoding here */ 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.clock_type = FST_RDB(card, portConfig[i].internalClock) == 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INTCLK ? CLOCK_INT : CLOCK_EXT; 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.loopback = 0; 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &sync, sizeof (sync))) { 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.size = sizeof (sync); 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_write wrthdr; 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info info; 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 19975ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro void *buf; 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, ifr->ifr_data); 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_NET_ADMIN)) 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTCPURESET: 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpureset(card); 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RESET; 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTCPURELEASE: 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpurelease(card); 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_STARTING; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTWRITE: /* Code write (download) */ 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* First copy in the header with the length and offset of data 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to write 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_data == NULL) { 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&wrthdr, ifr->ifr_data, 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof (struct fstioc_write))) { 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Sanity check the parameters. We don't support partial writes 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when going over the top 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20348e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches if (wrthdr.size > FST_MEMSIZE || wrthdr.offset > FST_MEMSIZE || 20358e95a2026f3b43f7c3d676adaccd2de9532e8dccJoe Perches wrthdr.size + wrthdr.offset > FST_MEMSIZE) { 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENXIO; 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20395ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro /* Now copy the data to the card. */ 20405ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro 20417d88950426da812a6ab93ee1bba821f7f0ec1766Julia Lawall buf = memdup_user(ifr->ifr_data + sizeof(struct fstioc_write), 20427d88950426da812a6ab93ee1bba821f7f0ec1766Julia Lawall wrthdr.size); 20437d88950426da812a6ab93ee1bba821f7f0ec1766Julia Lawall if (IS_ERR(buf)) 20447d88950426da812a6ab93ee1bba821f7f0ec1766Julia Lawall return PTR_ERR(buf); 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20465ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro memcpy_toio(card->mem + wrthdr.offset, buf, wrthdr.size); 20475ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro kfree(buf); 20485ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Writes to the memory of a card in the reset state constitute 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a download 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_RESET) { 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_DOWNLOAD; 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTGETCONF: 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If card has just been started check the shared memory config 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version and marker 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_STARTING) { 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds check_started_ok(card); 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If everything checked out enable card interrupts */ 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_RUNNING) { 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_enable_intr(card); 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptHandshake, 0xEE); 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_data == NULL) { 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gather_conf_info(card, port, &info); 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(ifr->ifr_data, &info, sizeof (info))) { 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTSETCONF: 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Most of the settings have been moved to the generic ioctls 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this just covers debug and board ident now 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state != FST_RUNNING) { 20933f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Attempt to configure card %d in non-running state (%d)\n", 20943f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches card->card_no, card->state); 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&info, ifr->ifr_data, sizeof (info))) { 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return set_conf_from_info(card, port, &info); 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SIOCWANDEV: 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (ifr->ifr_settings.type) { 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_GET_IFACE: 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fst_get_iface(card, port, ifr); 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_SYNC_SERIAL: 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V35: 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V24: 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21: 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21D: 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_T1: 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_E1: 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fst_set_iface(card, port, ifr); 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_PROTO_RAW: 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_RAW; 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_GET_PROTO: 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) { 21231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_PROTO_RAW; 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_GEN_HDLC; 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_IOCTL, "Passing this type to hdlc %x\n", 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type); 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Not one of ours. Pass through to HDLC package */ 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_openport(struct fst_port_info *port) 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int signals; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only init things if card is actually running. This allows open to 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * succeed for downloads etc. 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->card->state == FST_RUNNING) { 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) { 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, "open: found port already running\n"); 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STOPPORT); 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 0; 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_rx_config(port); 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_config(port); 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_op_raise(port, OPSTS_RTS | OPSTS_DTR); 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STARTPORT); 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 1; 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds signals = FST_RDL(port->card, v24DebouncedSts[port->index]); 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signals & (((port->hwif == X21) || (port->hwif == X21D)) 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? IPSTS_INDICATE : IPSTS_DCD)) 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = port->txqe - port->txqs; 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe = 0; 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs = 0; 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_closeport(struct fst_port_info *port) 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->card->state == FST_RUNNING) { 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) { 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 0; 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_op_lower(port, OPSTS_RTS | OPSTS_DTR); 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STOPPORT); 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, "close: port not running\n"); 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_open(struct net_device *dev) 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!try_module_get(THIS_MODULE)) 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode != FST_RAW) { 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = hdlc_open(dev); 2206d0fd64c1de437bdf91c32d4f84a53fa4b2150348Pavel Shved if (err) { 2207d0fd64c1de437bdf91c32d4f84a53fa4b2150348Pavel Shved module_put(THIS_MODULE); 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2209d0fd64c1de437bdf91c32d4f84a53fa4b2150348Pavel Shved } 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_openport(port); 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(dev); 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_close(struct net_device *dev) 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char tx_dma_done; 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char rx_dma_done; 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_dma_done = inb(card->pci_conf + DMACSR1); 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_dma_done = inb(card->pci_conf + DMACSR0); 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Port Close: tx_dma_in_progress = %d (%x) rx_dma_in_progress = %d (%x)\n", 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress, tx_dma_done, card->dmarx_in_progress, 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_dma_done); 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(dev); 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_closeport(dev_to_port(dev)); 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode != FST_RAW) { 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc_close(dev); 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds module_put(THIS_MODULE); 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_attach(struct net_device *dev, unsigned short encoding, unsigned short parity) 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setting currently fixed in FarSync card so we check and forget 22491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (encoding != ENCODING_NRZ || parity != PARITY_CRC16_PR1_CCITT) 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_timeout(struct net_device *dev) 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 2263198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2264198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_aborted_errors++; 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx timeout card %d port %d\n", 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, ABORTTX); 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(dev); 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2274d71a674922e7519edb477ecb585e7d29d69c7aa7Stephen Hemmingerstatic netdev_tx_t 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_start_xmit(struct sk_buff *skb, struct net_device *dev) 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_start_xmit: length = %d\n", skb->len); 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drop packet with error if we don't have carrier */ 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(dev)) { 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2289198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2290198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_carrier_errors++; 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Tried to transmit but no carrier on card %d port %d\n", 22931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 2294ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drop it if it's too big! MTU failure ? */ 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (skb->len > LEN_TX_BUFFER) { 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Packet too large %d vs %d\n", skb->len, 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LEN_TX_BUFFER); 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2302198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2303ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are always going to queue the packet 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so that the bottom half is the only place we tx from 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Check there is room in the port txq 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((txq_length = port->txqe - port->txqs) < 0) { 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the case where the next free has wrapped but the 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * last used hasn't 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = txq_length + FST_TXQ_DEPTH; 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length > fst_txq_high) { 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We have got enough buffers in the pipeline. Ask the network 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * layer to stop sending frames down 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(dev); 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 1; /* I'm using this to signal stop sent up */ 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length == FST_TXQ_DEPTH - 1) { 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This shouldn't have happened but such is life 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2334198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx queue overflow card %d port %d\n", 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 2337ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue the buffer 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txq[port->txqe] = skb; 23451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe++; 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->txqe == FST_TXQ_DEPTH) 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe = 0; 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Scehdule the bottom half which now does transmit processing */ 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_txq, card->card_no); 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_tx_task); 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2354ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Card setup having checked hardware resources. 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should be pretty bizarre if we get an error here (kernel memory 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * exhaustion is one possibility). If we do see a problem we report it 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * via a printk and leave the corresponding interface and all that follow 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disabled. 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *type_strings[] __devinitdata = { 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "no hardware", /* Should never be seen */ 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T2P", 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T4P", 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T1U", 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T2U", 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T4U", 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync TE1" 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __devinit 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init_card(struct fst_card_info *card) 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* We're working on a number of ports based on the card ID. If the 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * firmware detects something different later (should never happen) 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we'll have to revise it in some way then. 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < card->nports; i++) { 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = register_hdlc_device(card->ports[i].dev); 23861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 23871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int j; 23883f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Cannot register HDLC device for port %d (errno %d)\n", 23893f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches i, -err); 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = i; j < card->nports; j++) { 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(card->ports[j].dev); 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[j].dev = NULL; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = i; 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 23961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23993f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_info("%s-%s: %s IRQ%d, %d ports\n", 24003f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches port_to_dev(&card->ports[0])->name, 24013f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches port_to_dev(&card->ports[card->nports - 1])->name, 24023f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches type_strings[card->type], card->irq, card->nports); 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2405991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasastatic const struct net_device_ops fst_ops = { 2406991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_open = fst_open, 2407991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_stop = fst_close, 2408991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_change_mtu = hdlc_change_mtu, 2409991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_start_xmit = hdlc_start_xmit, 2410991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_do_ioctl = fst_ioctl, 2411991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_tx_timeout = fst_tx_timeout, 2412991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa}; 2413991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 24151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initialise card when detected. 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns 0 to indicate success, or errno otherwise. 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __devinit 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent) 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int no_of_cards_added = 0; 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24263f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches printk_once(KERN_INFO 24273f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_fmt("FarSync WAN driver " FST_USER_VERSION 24283f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches " (c) 2001-2004 FarSite Communications Ltd.\n")); 24293f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches#if FST_DEBUG 24303f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches dbg(DBG_ASS, "The value of debug mask is %x\n", fst_debug_mask); 24313f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches#endif 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are going to be clever and allow certain cards not to be 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configured. An exclude list can be provided in /etc/modules.conf 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_excluded_cards != 0) { 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are cards to exclude 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < fst_excluded_cards; i++) { 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((pdev->devfn) >> 3 == fst_excluded_list[i]) { 24433f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_info("FarSync PCI device %d not assigned\n", 24443f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches (pdev->devfn) >> 3); 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Allocate driver private data */ 2451dd00cc486ab1c17049a535413d1751ef3482141cYoann Padioleau card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL); 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card == NULL) { 24533f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("FarSync card found but insufficient memory for driver storage\n"); 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Try to enable the device */ 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = pci_enable_device(pdev)) != 0) { 24593f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Failed to enable card. Err %d\n", -err); 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = pci_request_regions(pdev, "FarSync")) !=0) { 24653f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Failed to allocate regions. Err %d\n", -err); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Get virtual addresses of memory regions */ 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->pci_conf = pci_resource_start(pdev, 1); 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->phys_mem = pci_resource_start(pdev, 2); 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->phys_ctlmem = pci_resource_start(pdev, 3); 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((card->mem = ioremap(card->phys_mem, FST_MEMSIZE)) == NULL) { 24763f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Physical memory remap failed\n"); 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((card->ctlmem = ioremap(card->phys_ctlmem, 0x10)) == NULL) { 24833f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Control memory remap failed\n"); 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 24851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 248648159f009f5f92ef5962e7c278ac615d74242fa5Julia Lawall iounmap(card->mem); 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "kernel mem %p, ctlmem %p\n", card->mem, card->ctlmem); 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Register the interrupt handler */ 24931fb9df5d3069064c037c81c0ab8bf783ffa5e373Thomas Gleixner if (request_irq(pdev->irq, fst_intr, IRQF_SHARED, FST_DEV_NAME, card)) { 24943f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Unable to register interrupt %d\n", card->irq); 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Record info we need */ 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->irq = pdev->irq; 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->type = ent->driver_data; 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->family = ((ent->driver_data == FST_TYPE_T2P) || 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_T4P)) 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? FST_FAMILY_TXP : FST_FAMILY_TXU; 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ent->driver_data == FST_TYPE_T1U) || 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_TE1)) 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = 1; 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = ((ent->driver_data == FST_TYPE_T2P) || 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_T2U)) ? 2 : 4; 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_UNINIT; 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init ( &card->card_lock ); 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for ( i = 0 ; i < card->nports ; i++ ) { 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = alloc_hdlcdev(&card->ports[i]); 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc_device *hdlc; 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!dev) { 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (i--) 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(card->ports[i].dev); 25253f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("FarSync: out of memory\n"); 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(card->irq, card); 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].dev = dev; 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].card = card; 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].index = i; 25371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].run = 0; 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc = dev_to_hdlc(dev); 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Fill in the net device info */ 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Since this is a PCI setup this is purely 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * informational. Give them the buffer addresses 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and basic card I/O. 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mem_start = card->phys_mem 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + BUF_OFFSET ( txBuffer[i][0][0]); 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mem_end = card->phys_mem 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER][0]); 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base_addr = card->pci_conf; 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->irq = card->irq; 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2553991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->netdev_ops = &fst_ops; 2554991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->tx_queue_len = FST_TX_QUEUE_LEN; 2555991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->watchdog_timeo = FST_TX_TIMEOUT; 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc->attach = fst_attach; 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc->xmit = fst_start_xmit; 25581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->device = pdev; 25611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "type %d nports %d irq %d\n", card->type, 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports, card->irq); 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "conf %04x mem %08x ctlmem %08x\n", 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->pci_conf, card->phys_mem, card->phys_ctlmem); 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset the card's processor */ 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpureset(card); 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RESET; 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise DMA (if required) */ 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_init_dma(card); 25731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Record driver data for later use */ 25751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_drvdata(pdev, card); 25761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remainder of card setup */ 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[no_of_cards_added] = card; 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no = no_of_cards_added++; /* Record instance and bump it */ 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_init_card(card); 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocate a dma buffer for transmit and receives 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_host = 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_alloc_consistent(card->device, FST_MAX_MTU, 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &card->rx_dma_handle_card); 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->rx_dma_handle_host == NULL) { 25893f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Could not allocate rx dma buffer\n"); 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 25961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 25971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_host = 25991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_alloc_consistent(card->device, FST_MAX_MTU, 26001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &card->tx_dma_handle_card); 26011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->tx_dma_handle_host == NULL) { 26023f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_err("Could not allocate tx dma buffer\n"); 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 26051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* Success */ 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 26161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cleanup and close down a card 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __devexit 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_remove_one(struct pci_dev *pdev) 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 26221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = pci_get_drvdata(pdev); 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < card->nports; i++) { 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(&card->ports[i]); 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_hdlc_device(dev); 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 26321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(card->irq, card); 26331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 26351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 26361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 26371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 26381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Free dma buffers 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(card->device, FST_MAX_MTU, 26421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_host, 26431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_card); 26441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(card->device, FST_MAX_MTU, 26451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_host, 26461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_card); 26471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[card->card_no] = NULL; 26491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_driver fst_driver = { 26521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = FST_NAME, 26531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = fst_pci_dev_id, 26541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = fst_add_one, 26551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .remove = __devexit_p(fst_remove_one), 26561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = NULL, 26571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = NULL, 26581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 26591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 26611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init(void) 26621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 26641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) 26661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[i] = NULL; 26671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&fst_work_q_lock); 2668299176206b266f204be859adf9e66efd06628ab2Jeff Garzik return pci_register_driver(&fst_driver); 26691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 26721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cleanup_module(void) 26731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26743f326d40994f922e0a3e468dd7fd9999eaf71574Joe Perches pr_info("FarSync WAN driver unloading\n"); 26751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unregister_driver(&fst_driver); 26761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fst_init); 26791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fst_cleanup_module); 2680