farsync.c revision ec634fe328182a1a098585bfc7b69e5042bdb08d
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 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/version.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/if.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/hdlc.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "farsync.h" 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module info 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("R.J.Dunlop <bob.dunlop@farsite.co.uk>"); 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FarSync T-Series WAN driver. FarSite Communications Ltd."); 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Driver configuration and global parameters 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ========================================== 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Number of ports (per card) and cards supported 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_PORTS 4 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_CARDS 32 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Default parameters for the link 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_QUEUE_LEN 100 /* At 8Mbps a longer queue length is 500bee8db8f63b099412fdbce5b55b01d9f177951dKrzysztof Hałasa * useful */ 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TXQ_DEPTH 16 /* This one is for the buffering 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of frames on the way down to the card 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so that we can keep the card busy 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and maximise throughput 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_HIGH_WATER_MARK 12 /* Point at which we flow control 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * network layer */ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_LOW_WATER_MARK 8 /* Point at which we remove flow 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * control from network layer */ 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MAX_MTU 8000 /* Huge but possible */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_DEF_MTU 1500 /* Common sane value */ 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_TIMEOUT (2*HZ) 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef ARPHRD_RAWHDLC 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARPHRD_MYTYPE ARPHRD_RAWHDLC /* Raw frames */ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ARPHRD_MYTYPE ARPHRD_HDLC /* Cisco-HDLC (keepalives etc) */ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 723a070ad1449b1c068a2fac41285ae7548a623485Uwe Kleine-König * Modules parameters and associated variables 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 747665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_txq_low = FST_LOW_WATER_MARK; 757665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_txq_high = FST_HIGH_WATER_MARK; 767665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_max_reads = 7; 777665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_excluded_cards = 0; 787665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic int fst_excluded_list[FST_MAX_CARDS]; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_txq_low, int, 0); 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_txq_high, int, 0); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_max_reads, int, 0); 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(fst_excluded_cards, int, 0); 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_array(fst_excluded_list, int, NULL, 0); 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Card shared memory layout 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ========================= 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#pragma pack(1) 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* This information is derived in part from the FarSite FarSync Smc.h 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * file. Unfortunately various name clashes and the non-portability of the 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bit field declarations in that file have meant that I have chosen to 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * recreate the information here. 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The SMC (Shared Memory Configuration) has a version number that is 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incremented every time there is a significant change. This number can 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * be used to check that we have not got out of step with the firmware 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * contained in the .CDE files. 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SMC_VERSION 24 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MEMSIZE 0x100000 /* Size of card memory (1Mb) */ 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SMC_BASE 0x00002000L /* Base offset of the shared memory window main 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configuration structure */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BFM_BASE 0x00010000L /* Base offset of the shared memory window DMA 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * buffers */ 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_TX_BUFFER 8192 /* Size of packet buffers */ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_RX_BUFFER 8192 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_SMALL_TX_BUFFER 256 /* Size of obsolete buffs used for DOS diags */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LEN_SMALL_RX_BUFFER 256 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NUM_TX_BUFFER 2 /* Must be power of 2. Fixed by firmware */ 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NUM_RX_BUFFER 8 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupt retry time in milliseconds */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INT_RETRY_TIME 2 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The Am186CH/CC processors support a SmartDMA mode using circular pools 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of buffer descriptors. The structure is almost identical to that used 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the LANCE Ethernet controllers. Details available as PDF from the 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * AMD web site: http://www.amd.com/products/epd/processors/\ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2.16bitcont/3.am186cxfa/a21914/21914.pdf 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct txdesc { /* Transmit descriptor */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 ladr; /* Low order address of packet. This is a 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linear address in the Am186 memory space 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 hadr; /* High order address. Low 4 bits only, high 4 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bits must be zero 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 bits; /* Status and config */ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 bcnt; /* 2s complement of packet size in low 15 bits. 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Transmit terminal count interrupt enable in 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * top bit. 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 unused; /* Not used in Tx */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct rxdesc { /* Receive descriptor */ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 ladr; /* Low order address of packet */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 hadr; /* High order address */ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u8 bits; /* Status and config */ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 bcnt; /* 2s complement of buffer size in low 15 bits. 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Receive terminal count interrupt enable in 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * top bit. 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile u16 mcnt; /* Message byte count (15 bits) */ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert a length into the 15 bit 2's complement */ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* #define cnv_bcnt(len) (( ~(len) + 1 ) & 0x7FFF ) */ 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Since we need to set the high bit to enable the completion interrupt this 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * can be made a lot simpler 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define cnv_bcnt(len) (-(len)) 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Status and config bits for the above */ 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMA_OWN 0x80 /* SmartDMA owns the descriptor */ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_STP 0x02 /* Tx: start of packet */ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TX_ENP 0x01 /* Tx: end of packet */ 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_ERR 0x40 /* Rx: error (OR of next 4 bits) */ 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_FRAM 0x20 /* Rx: framing error */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_OFLO 0x10 /* Rx: overflow error */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_CRC 0x08 /* Rx: CRC error */ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_HBUF 0x04 /* Rx: buffer error */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_STP 0x02 /* Rx: start of packet */ 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RX_ENP 0x01 /* Rx: end of packet */ 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupts from the card are caused by various events which are presented 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in a circular buffer as several events may be processed on one physical int 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAX_CIRBUFF 32 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct cirbuff { 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rdindex; /* read, then increment and wrap */ 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 wrindex; /* write, then increment and wrap */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 evntbuff[MAX_CIRBUFF]; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Interrupt event codes. 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Where appropriate the two low order bits indicate the port number 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLA_CHG 0x18 /* Control signal changed */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLB_CHG 0x19 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLC_CHG 0x1A 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CTLD_CHG 0x1B 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INIT_CPLT 0x20 /* Initialisation complete */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INIT_FAIL 0x21 /* Initialisation failed */ 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTA_SENT 0x24 /* Abort sent */ 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTB_SENT 0x25 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTC_SENT 0x26 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABTD_SENT 0x27 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXA_UNDF 0x28 /* Transmission underflow */ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXB_UNDF 0x29 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXC_UNDF 0x2A 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TXD_UNDF 0x2B 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define F56_INT 0x2C 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define M32_INT 0x2D 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TE1_ALMA 0x30 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Port physical configuration. See farsync.h for field values */ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct port_cfg { 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 lineInterface; /* Physical interface type */ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 x25op; /* Unused at present */ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 internalClock; /* 1 => internal clock, 0 => external */ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 transparentMode; /* 1 => on, 0 => off */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 invertClock; /* 0 => normal, 1 => inverted */ 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 padBytes[6]; /* Padding */ 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 lineSpeed; /* Speed in bps */ 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 port physical configuration */ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct su_config { 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dataRate; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 clocking; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 framing; 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 structure; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 interface; 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 coding; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 lineBuildOut; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 equalizer; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 transparentMode; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 loopMode; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 range; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 txBufferMode; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rxBufferMode; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 startingSlot; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 losThreshold; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 enableIdleCode; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 idleCode; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 spare[44]; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 Status */ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct su_status { 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 receiveBufferDelay; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 framingErrorCount; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 codeViolationCount; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 crcErrorCount; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 lineAttenuation; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 portStarted; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 lossOfSignal; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 receiveRemoteAlarm; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 alarmIndicationSignal; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 spare[40]; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Finally sling all the above together into the shared memory structure. 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sorry it's a hodge podge of arrays, structures and unused bits, it's been 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * evolving under NT for some time so I guess we're stuck with it. 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The structure starts at offset SMC_BASE. 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See farsync.h for some field values. 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_shared { 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* DMA descriptor rings */ 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rxdesc rxDescrRing[FST_MAX_PORTS][NUM_RX_BUFFER]; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct txdesc txDescrRing[FST_MAX_PORTS][NUM_TX_BUFFER]; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Obsolete small buffers */ 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 smallRxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_SMALL_RX_BUFFER]; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 smallTxBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_SMALL_TX_BUFFER]; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 taskStatus; /* 0x00 => initialising, 0x01 => running, 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0xFF => halted 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 interruptHandshake; /* Set to 0x01 by adapter to signal interrupt, 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * set to 0xEE by host to acknowledge interrupt 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 smcVersion; /* Must match SMC_VERSION */ 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 smcFirmwareVersion; /* 0xIIVVRRBB where II = product ID, VV = major 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version, RR = revision and BB = build 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txa_done; /* Obsolete completion flags */ 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxa_done; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txb_done; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxb_done; 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txc_done; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxc_done; 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txd_done; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxd_done; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 mailbox[4]; /* Diagnostics mailbox. Not used */ 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct cirbuff interruptEvent; /* interrupt causes */ 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24IpSts[FST_MAX_PORTS]; /* V.24 control input status */ 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24OpSts[FST_MAX_PORTS]; /* V.24 control output status */ 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct port_cfg portConfig[FST_MAX_PORTS]; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 clockStatus[FST_MAX_PORTS]; /* lsb: 0=> present, 1=> absent */ 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cableStatus; /* lsb: 0=> present, 1=> absent */ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 txDescrIndex[FST_MAX_PORTS]; /* transmit descriptor ring index */ 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 rxDescrIndex[FST_MAX_PORTS]; /* receive descriptor ring index */ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 portMailbox[FST_MAX_PORTS][2]; /* command, modifier */ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cardMailbox[4]; /* Not used */ 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Number of times the card thinks the host has 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * missed an interrupt by not acknowledging 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * within 2mS (I guess NT has problems) 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 interruptRetryCount; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Driver private data used as an ID. We'll not 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * use this as I'd rather keep such things 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in main memory rather than on the PCI bus 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 portHandle[FST_MAX_PORTS]; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Count of Tx underflows for stats */ 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 transmitBufferUnderflow[FST_MAX_PORTS]; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Debounced V.24 control input status */ 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 v24DebouncedSts[FST_MAX_PORTS]; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Adapter debounce timers. Don't touch */ 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ctsTimer[FST_MAX_PORTS]; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 ctsTimerRun[FST_MAX_PORTS]; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dcdTimer[FST_MAX_PORTS]; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 dcdTimerRun[FST_MAX_PORTS]; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 numberOfPorts; /* Number of ports detected at startup */ 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 _reserved[64]; 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 cardMode; /* Bit-mask to enable features: 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bit 0: 1 enables LED identify mode 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 portScheduleOffset; 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct su_config suConfig; /* TE1 Bits */ 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct su_status suStatus; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 endOfSmcSignature; /* endOfSmcSignature MUST be the last member of 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the structure and marks the end of shared 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * memory. Adapter code initializes it as 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * END_SIG. 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* endOfSmcSignature value */ 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define END_SIG 0x12345678 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Mailbox values. (portMailbox) */ 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NOP 0 /* No operation */ 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ACK 1 /* Positive acknowledgement to PC driver */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NAK 2 /* Negative acknowledgement to PC driver */ 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STARTPORT 3 /* Start an HDLC port */ 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define STOPPORT 4 /* Stop an HDLC port */ 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define ABORTTX 5 /* Abort the transmitter for a port */ 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETV24O 6 /* Set V24 outputs */ 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* PLX Chip Register Offsets */ 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CNTRL_9052 0x50 /* Control Register */ 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CNTRL_9054 0x6c /* Control Register */ 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTCSR_9052 0x4c /* Interrupt control/status register */ 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INTCSR_9054 0x68 /* Interrupt control/status register */ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9054 DMA Registers */ 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we will be using DMA Channel 0 for copying rx data 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Channel 1 for copying tx data 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMODE0 0x80 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAPADR0 0x84 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMALADR0 0x88 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMASIZ0 0x8c 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADPR0 0x90 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMODE1 0x94 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAPADR1 0x98 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMALADR1 0x9c 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMASIZ1 0xa0 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADPR1 0xa4 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMACSR0 0xa8 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMACSR1 0xa9 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAARB 0xac 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMATHR 0xb0 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADAC0 0xb4 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMADAC1 0xb8 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMAMARBR 0xac 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_MIN_DMA_LEN 64 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RX_DMA_INT 0x01 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_TX_DMA_INT 0x02 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_CARD_INT 0x04 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Larger buffers are positioned in memory at offset BFM_BASE */ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct buf_window { 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 txBuffer[FST_MAX_PORTS][NUM_TX_BUFFER][LEN_TX_BUFFER]; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rxBuffer[FST_MAX_PORTS][NUM_RX_BUFFER][LEN_RX_BUFFER]; 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Calculate offset of a buffer object within the shared memory window */ 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define BUF_OFFSET(X) (BFM_BASE + offsetof(struct buf_window, X)) 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#pragma pack() 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Device driver private information 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ================================= 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Per port (line or channel) information 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_port_info { 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev; /* Device struct - must be first */ 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; /* Card we're associated with */ 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; /* Port index on the card */ 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int hwif; /* Line hardware (lineInterface copy) */ 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int run; /* Port is running */ 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; /* Normal or FarSync raw */ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxpos; /* Next Rx buffer to use */ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txpos; /* Next Tx buffer to use */ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txipos; /* Next Tx buffer to check for free */ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int start; /* Indication of start/stop to network */ 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A sixteen entry transmit queue 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txqs; /* index to get next buffer to tx */ 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txqe; /* index to queue next packet */ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *txq[FST_TXQ_DEPTH]; /* The queue */ 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxqdepth; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Per card information 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fst_card_info { 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __iomem *mem; /* Card memory mapped to kernel space */ 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __iomem *ctlmem; /* Control memory for PCI cards */ 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int phys_mem; /* Physical memory window address */ 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int phys_ctlmem; /* Physical control memory address */ 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int irq; /* Interrupt request line number */ 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int nports; /* Number of serial ports */ 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int type; /* Type index of card */ 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int state; /* State of card */ 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t card_lock; /* Lock for SMP access */ 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short pci_conf; /* PCI card config in I/O space */ 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Per port info */ 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info ports[FST_MAX_PORTS]; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *device; /* Information about the pci device */ 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int card_no; /* Inst of the card on the system */ 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int family; /* TxP or TxU */ 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dmarx_in_progress; 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dmatx_in_progress; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long int_count; 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long int_time_ave; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *rx_dma_handle_host; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t rx_dma_handle_card; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *tx_dma_handle_host; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_addr_t tx_dma_handle_card; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *dma_skb_rx; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *dma_port_rx; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *dma_port_tx; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_len_rx; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_len_tx; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_txpos; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int dma_rxpos; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert an HDLC device pointer into a port info pointer and similar */ 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define dev_to_port(D) (dev_to_hdlc(D)->priv) 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define port_to_dev(P) ((P)->dev) 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Shared memory window access macros 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We have a nice memory based structure above, which could be directly 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mapped on i386 but might not work on other architectures unless we use 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the readb,w,l and writeb,w,l macros. Unfortunately these macros take 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * physical offsets so we have to convert. The only saving grace is that 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this should all collapse back to a simple indirection eventually. 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define WIN_OFFSET(X) ((long)&(((struct fst_shared *)SMC_BASE)->X)) 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDB(C,E) readb ((C)->mem + WIN_OFFSET(E)) 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDW(C,E) readw ((C)->mem + WIN_OFFSET(E)) 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_RDL(C,E) readl ((C)->mem + WIN_OFFSET(E)) 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRB(C,E,B) writeb ((B), (C)->mem + WIN_OFFSET(E)) 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRW(C,E,W) writew ((W), (C)->mem + WIN_OFFSET(E)) 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FST_WRL(C,E,L) writel ((L), (C)->mem + WIN_OFFSET(E)) 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Debug support 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fst_debug_mask = { FST_DEBUG }; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Most common debug activity is to print something if the corresponding bit 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is set in the debug mask. Note: this uses a non-ANSI extension in GCC to 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * support variable numbers of macro parameters. The inverted if prevents us 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * eating someone else's else clause. 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define dbg(F,fmt,A...) if ( ! ( fst_debug_mask & (F))) \ 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; \ 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else \ 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk ( KERN_DEBUG FST_NAME ": " fmt, ## A ) 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define dbg(X...) /* NOP */ 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Printing short cuts 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define printk_err(fmt,A...) printk ( KERN_ERR FST_NAME ": " fmt, ## A ) 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define printk_warn(fmt,A...) printk ( KERN_WARNING FST_NAME ": " fmt, ## A ) 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define printk_info(fmt,A...) printk ( KERN_INFO FST_NAME ": " fmt, ## A ) 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI ID lookup table 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_device_id fst_pci_dev_id[] __devinitdata = { 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2P, PCI_ANY_ID, 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T2P}, 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4P, PCI_ANY_ID, 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T4P}, 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T1U, PCI_ANY_ID, 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T1U}, 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T2U, PCI_ANY_ID, 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T2U}, 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_T4U, PCI_ANY_ID, 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_T4U}, 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1, PCI_ANY_ID, 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_TE1}, 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {PCI_VENDOR_ID_FARSITE, PCI_DEVICE_ID_FARSITE_TE1C, PCI_ANY_ID, 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds PCI_ANY_ID, 0, 0, FST_TYPE_TE1}, 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds {0,} /* End */ 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, fst_pci_dev_id); 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Device Driver Work Queues 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * So that we don't spend too much time processing events in the 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Interrupt Service routine, we will declare a work queue per Card 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and make the ISR schedule a task in the queue for later execution. 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * In the 2.4 Kernel we used to use the immediate queue for BH's 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Now that they are gone, tasklets seem to be much better than work 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queues. 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void do_bottom_half_tx(struct fst_card_info *card); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void do_bottom_half_rx(struct fst_card_info *card); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fst_process_tx_work_q(unsigned long work_q); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fst_process_int_work_q(unsigned long work_q); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5727665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q, 0); 5737665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic DECLARE_TASKLET(fst_int_task, fst_process_int_work_q, 0); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5757665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic struct fst_card_info *fst_card_array[FST_MAX_CARDS]; 5767665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic spinlock_t fst_work_q_lock; 5777665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic u64 fst_work_txq; 5787665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic u64 fst_work_intq; 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_q_work_item(u64 * queue, int card_index) 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 mask; 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Making an entry in the queue is simply a matter of setting 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a bit for the card indicating that there is work to do in the 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bottom half for the card. Note the limitation of 64 cards. 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * That ought to be enough 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = 1 << card_index; 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *queue |= mask; 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_tx_work_q(unsigned long /*void **/work_q) 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 work_txq; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_process_tx_work_q\n"); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_txq = fst_work_txq; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_work_txq = 0; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Call the bottom half for each card with work waiting 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) { 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (work_txq & 0x01) { 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_card_array[i] != NULL) { 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Calling tx bh for card %d\n", i); 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_tx(fst_card_array[i]); 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_txq = work_txq >> 1; 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_int_work_q(unsigned long /*void **/work_q) 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u64 work_intq; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Grab the queue exclusively 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "fst_process_int_work_q\n"); 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&fst_work_q_lock, flags); 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_intq = fst_work_intq; 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_work_intq = 0; 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&fst_work_q_lock, flags); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Call the bottom half for each card with work waiting 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) { 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (work_intq & 0x01) { 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_card_array[i] != NULL) { 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Calling rx & tx bh for card %d\n", i); 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_rx(fst_card_array[i]); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_bottom_half_tx(fst_card_array[i]); 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds work_intq = work_intq >> 1; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Card control functions 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ====================== 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Place the processor in reset state 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Used to be a simple write to card control space but a glitch in the latest 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * AMD Am186CH processor means that we now have to do it by asserting and de- 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * asserting the PLX chip PCI Adapter Software Reset. Bit 30 in CNTRL register 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * at offset 9052_CNTRL. Note the updates for the TXU. 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cpureset(struct fst_card_info *card) 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char interrupt_line_register; 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long j = jiffies + 1; 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int regval; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (card->device, PCI_INTERRUPT_LINE, &interrupt_line_register)) { 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Error in reading interrupt line register\n"); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Assert PLX software reset and Am186 hardware reset 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and then deassert the PLX software reset but 186 still in reset 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x440f, card->pci_conf + CNTRL_9054 + 2); 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are delaying here to allow the 9054 to reset itself 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies + 1; 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (jiffies < j) 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Do nothing */ ; 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x240f, card->pci_conf + CNTRL_9054 + 2); 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are delaying here to allow the 9054 to reload its eeprom 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = jiffies + 1; 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (jiffies < j) 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Do nothing */ ; 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_write_config_byte 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (card->device, PCI_INTERRUPT_LINE, interrupt_line_register)) { 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Error in writing interrupt line register\n"); 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regval = inl(card->pci_conf + CNTRL_9052); 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(regval | 0x40000000, card->pci_conf + CNTRL_9052); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(regval & ~0x40000000, card->pci_conf + CNTRL_9052); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Release the processor from reset 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cpurelease(struct fst_card_info *card) 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Force posted writes to complete 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->mem); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Release LRESET DO = 1 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Then release Local Hold, DO = 1 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040e, card->pci_conf + CNTRL_9054 + 2); 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x040f, card->pci_conf + CNTRL_9054 + 2); 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->ctlmem); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Clear the cards interrupt flag 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_clear_intr(struct fst_card_info *card) 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) readb(card->ctlmem); 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Poke the appropriate PLX chip register (same as enabling interrupts) 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0543, card->pci_conf + INTCSR_9052); 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Enable card interrupts 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_enable_intr(struct fst_card_info *card) 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x0f0c0900, card->pci_conf + INTCSR_9054); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0543, card->pci_conf + INTCSR_9052); 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Disable card interrupts 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_disable_intr(struct fst_card_info *card) 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00000000, card->pci_conf + INTCSR_9054); 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outw(0x0000, card->pci_conf + INTCSR_9052); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Process the result of trying to pass a received frame up the stack 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_process_rx_status(int rx_status, char *name) 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rx_status) { 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case NET_RX_SUCCESS: 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Nothing to do here 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case NET_RX_DROP: 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "%s: Received packet dropped\n", name); 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Initilaise DMA for PLX 9054 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init_dma(struct fst_card_info *card) 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is only required for the PLX 9054 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_master(card->device); 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00020441, card->pci_conf + DMAMODE0); 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00020441, card->pci_conf + DMAMODE1); 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x0, card->pci_conf + DMATHR); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Tx dma complete interrupt 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_dma_complete(struct fst_card_info *card, struct fst_port_info *port, 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, int txpos) 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Everything is now set, just tell the card to go 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_tx_dma_complete\n"); 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[port->index][txpos].bits, 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DMA_OWN | TX_STP | TX_ENP); 833198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_packets++; 834198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_bytes += len; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark it for our own raw sockets interface 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 841ab611487d8ada506e511d2b8f22fb8e7be9939b9Alexey Dobriyanstatic __be16 farsync_type_trans(struct sk_buff *skb, struct net_device *dev) 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->dev = dev; 844459a98ed881802dee55897441bc7f77af614368eArnaldo Carvalho de Melo skb_reset_mac_header(skb); 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->pkt_type = PACKET_HOST; 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return htons(ETH_P_CUST); 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx dma complete interrupt 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_rx_dma_complete(struct fst_card_info *card, struct fst_port_info *port, 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int len, struct sk_buff *skb, int rxp) 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_status; 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_rx_dma_complete\n"); 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(skb_put(skb, len), card->rx_dma_handle_host, len); 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset buffer descriptor */ 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Update stats */ 867198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_packets++; 868198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_bytes += len; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Push upstream */ 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "Pushing the frame up the stack\n"); 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = farsync_type_trans(skb, dev); 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_status = netif_rx(skb); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_process_rx_status(rx_status, port_to_dev(port)->name); 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rx_status == NET_RX_DROP) 879198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Receive a frame through the DMA 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_rx_dma(struct fst_card_info *card, unsigned char *skb, 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *mem, int len) 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine will setup the DMA and start it 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "In fst_rx_dma %p %p %d\n", skb, mem, len); 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmarx_in_progress) { 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "In fst_rx_dma while dma in progress\n"); 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) skb, card->pci_conf + DMAPADR0); /* Copy to here */ 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) mem, card->pci_conf + DMALADR0); /* from here */ 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(len, card->pci_conf + DMASIZ0); /* for this length */ 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x00000000c, card->pci_conf + DMADPR0); /* In this direction */ 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We use the dmarx_in_progress flag to flag the channel as busy 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmarx_in_progress = 1; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x03, card->pci_conf + DMACSR0); /* Start the transfer */ 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Send a frame through the DMA 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_dma(struct fst_card_info *card, unsigned char *skb, 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char *mem, int len) 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine will setup the DMA and start it. 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "In fst_tx_dma %p %p %d\n", skb, mem, len); 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmatx_in_progress) { 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "In fst_tx_dma while dma in progress\n"); 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) skb, card->pci_conf + DMAPADR1); /* Copy from here */ 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl((unsigned long) mem, card->pci_conf + DMALADR1); /* to here */ 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(len, card->pci_conf + DMASIZ1); /* for this length */ 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outl(0x000000004, card->pci_conf + DMADPR1); /* In this direction */ 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We use the dmatx_in_progress to flag the channel as busy 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress = 1; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x03, card->pci_conf + DMACSR1); /* Start the transfer */ 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Issue a Mailbox command for a port. 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note we issue them on a fire and forget basis, not expecting to see an 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * error and not waiting for completion. 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_issue_cmd(struct fst_port_info *port, unsigned short cmd) 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short mbval; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int safety; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mbval = FST_RDW(card, portMailbox[port->index][0]); 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds safety = 0; 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Wait for any previous command to complete */ 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (mbval > NAK) { 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 9583173c8907ffb2c64456142da3df2bd0500bd59e0Nishanth Aravamudan schedule_timeout_uninterruptible(1); 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++safety > 2000) { 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Mailbox safety timeout\n"); 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mbval = FST_RDW(card, portMailbox[port->index][0]); 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (safety > 0) { 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_CMD, "Mailbox clear after %d jiffies\n", safety); 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mbval == NAK) { 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_CMD, "issue_cmd: previous command was NAK'd\n"); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portMailbox[port->index][0], cmd); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd == ABORTTX || cmd == STARTPORT) { 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txipos = 0; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Port output signals control 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_op_raise(struct fst_port_info *port, unsigned int outputs) 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outputs |= FST_RDL(port->card, v24OpSts[port->index]); 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(port->card, v24OpSts[port->index], outputs); 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, SETV24O); 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline void 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_op_lower(struct fst_port_info *port, unsigned int outputs) 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outputs = ~outputs & FST_RDL(port->card, v24OpSts[port->index]); 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(port->card, v24OpSts[port->index], outputs); 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, SETV24O); 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup port Rx buffers 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_rx_config(struct fst_port_info *port) 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int offset; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < NUM_RX_BUFFER; i++) { 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset = BUF_OFFSET(rxBuffer[pi][i][0]); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].ladr, (u16) offset); 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][i].hadr, (u8) (offset >> 16)); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].bcnt, cnv_bcnt(LEN_RX_BUFFER)); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, rxDescrRing[pi][i].mcnt, LEN_RX_BUFFER); 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][i].bits, DMA_OWN); 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = 0; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup port Tx buffers 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_config(struct fst_port_info *port) 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int offset; 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < NUM_TX_BUFFER; i++) { 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset = BUF_OFFSET(txBuffer[pi][i][0]); 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][i].ladr, (u16) offset); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[pi][i].hadr, (u8) (offset >> 16)); 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][i].bcnt, 0); 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, txDescrRing[pi][i].bits, 0); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txipos = 0; 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* TE1 Alarm change interrupt event 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_te1_alarm(struct fst_card_info *card, struct fst_port_info *port) 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 los; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rra; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 ais; 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds los = FST_RDB(card, suStatus.lossOfSignal); 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rra = FST_RDB(card, suStatus.receiveRemoteAlarm); 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ais = FST_RDB(card, suStatus.alarmIndicationSignal); 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (los) { 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Lost the link 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_carrier_ok(port_to_dev(port))) { 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Net carrier off\n"); 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Link available 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(port_to_dev(port))) { 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Net carrier on\n"); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (los) 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert LOS Alarm\n"); 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert LOS Alarm\n"); 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rra) 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert RRA Alarm\n"); 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert RRA Alarm\n"); 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ais) 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Assert AIS Alarm\n"); 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "De-assert AIS Alarm\n"); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Control signal change interrupt event 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_ctlchg(struct fst_card_info *card, struct fst_port_info *port) 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int signals; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds signals = FST_RDL(card, v24DebouncedSts[port->index]); 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signals & (((port->hwif == X21) || (port->hwif == X21D)) 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? IPSTS_INDICATE : IPSTS_DCD)) { 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(port_to_dev(port))) { 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "DCD active\n"); 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (netif_carrier_ok(port_to_dev(port))) { 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "DCD lost\n"); 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Log Rx Errors 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_log_rx_error(struct fst_card_info *card, struct fst_port_info *port, 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits, int rxp, unsigned short len) 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1142198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa /* 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increment the appropriate error counter 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1145198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_errors++; 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_OFLO) { 1147198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_fifo_errors++; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx fifo error on card %d port %d buffer %d\n", 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index, rxp); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_CRC) { 1152198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_crc_errors++; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx crc error on card %d port %d\n", 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & RX_FRAM) { 1157198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_frame_errors++; 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx frame error on card %d port %d\n", 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits == (RX_STP | RX_ENP)) { 1162198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_length_errors++; 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Rx length error (%d) on card %d port %d\n", 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len, card->card_no, port->index); 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx Error Recovery 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_recover_rx_error(struct fst_card_info *card, struct fst_port_info *port, 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits, int rxp, unsigned short len) 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Discard buffer descriptors until we see the start of the 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * next frame. Note that for long frames this could be in 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a subsequent interrupt. 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((dmabits & (DMA_OWN | RX_STP)) == 0) { 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++i > NUM_RX_BUFFER) { 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "intr_rx: Discarding more bufs" 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " than we have\n"); 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits); 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "DMA Bits of next buffer was %x\n", dmabits); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "There were %d subsequent buffers in error\n", i); 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Discard the terminal buffer */ 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(dmabits & DMA_OWN)) { 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Rx complete interrupt 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_intr_rx(struct fst_card_info *card, struct fst_port_info *port) 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char dmabits; 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rxp; 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_status; 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned short len; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(port); 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check we have a buffer to process */ 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi = port->index; 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = port->rxpos; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dmabits = FST_RDB(card, rxDescrRing[pi][rxp].bits); 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits & DMA_OWN) { 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX | DBG_INTR, "intr_rx: No buffer port %d pos %d\n", 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pi, rxp); 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->dmarx_in_progress) { 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Get buffer length */ 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len = FST_RDW(card, rxDescrRing[pi][rxp].mcnt); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Discard the CRC */ 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len -= 2; 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len == 0) { 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This seems to happen on the TE1 interface sometimes 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so throw the frame away and log the event. 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Frame received with 0 length. Card %d Port %d\n", 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Return descriptor to card */ 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check buffer length and for other errors. We insist on one packet 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in one buffer. This simplifies things greatly and since we've 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated 8K it shouldn't be a real world limitation 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "intr_rx: %d,%d: flags %x len %d\n", pi, rxp, dmabits, len); 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dmabits != (RX_STP | RX_ENP) || len > LEN_RX_BUFFER - 2) { 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_log_rx_error(card, port, dmabits, rxp, len); 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_recover_rx_error(card, port, dmabits, rxp, len); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Allocate SKB */ 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((skb = dev_alloc_skb(len)) == NULL) { 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "intr_rx: can't allocate buffer\n"); 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1267198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Return descriptor to card */ 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We know the length we need to receive, len. 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's not worth using the DMA for reads of less than 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FST_MIN_DMA_LEN 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((len < FST_MIN_DMA_LEN) || (card->family == FST_FAMILY_TXP)) { 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy_fromio(skb_put(skb, len), 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->mem + BUF_OFFSET(rxBuffer[pi][rxp][0]), 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len); 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset buffer descriptor */ 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, rxDescrRing[pi][rxp].bits, DMA_OWN); 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Update stats */ 1292198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_packets++; 1293198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_bytes += len; 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Push upstream */ 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "Pushing frame up the stack\n"); 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = farsync_type_trans(skb, dev); 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->protocol = hdlc_type_trans(skb, dev); 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_status = netif_rx(skb); 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_process_rx_status(rx_status, port_to_dev(port)->name); 1303198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa if (rx_status == NET_RX_DROP) 1304198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.rx_dropped++; 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_skb_rx = skb; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_port_rx = port; 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_rx = len; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_rxpos = rxp; 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_rx_dma(card, (char *) card->rx_dma_handle_card, 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (char *) BUF_OFFSET(rxBuffer[pi][rxp][0]), len); 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rxp != port->rxpos) { 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "About to increment rxpos by more than 1\n"); 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "rxp = %d rxpos = %d\n", rxp, port->rxpos); 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rxp = (rxp+1) % NUM_RX_BUFFER; 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->rxpos = rxp; 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The bottom halfs to the ISR 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdo_bottom_half_tx(struct fst_card_info *card) 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Find a free buffer for the transmit 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Step through each port on this card 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "do_bottom_half_tx\n"); 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) { 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!port->run) 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1346198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev = port_to_dev(port); 1347198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa while (!(FST_RDB(card, txDescrRing[pi][port->txpos].bits) & 1348198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa DMA_OWN) 1349198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa && !(card->dmatx_in_progress)) { 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There doesn't seem to be a txdone event per-se 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We seem to have to deduce it, by checking the DMA_OWN 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bit on the next buffer we think we can use 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((txq_length = port->txqe - port->txqs) < 0) { 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the case where one has wrapped and the 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maths gives us a negative number 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = txq_length + FST_TXQ_DEPTH; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length > 0) { 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There is something to send 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb = port->txq[port->txqs]; 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs++; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->txqs == FST_TXQ_DEPTH) { 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs = 0; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * copy the data and set the required indicators on the 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * card. 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, txDescrRing[pi][port->txpos].bcnt, 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cnv_bcnt(skb->len)); 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((skb->len < FST_MIN_DMA_LEN) 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds || (card->family == FST_FAMILY_TXP)) { 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Enqueue the packet with normal io */ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy_toio(card->mem + 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUF_OFFSET(txBuffer[pi] 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [port-> 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txpos][0]), 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->data, skb->len); 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txDescrRing[pi][port->txpos]. 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bits, 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DMA_OWN | TX_STP | TX_ENP); 1393198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_packets++; 1394198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_bytes += skb->len; 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Or do it through dma */ 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(card->tx_dma_handle_host, 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->data, skb->len); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_port_tx = port; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_tx = skb->len; 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_txpos = port->txpos; 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_dma(card, 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (char *) card-> 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_dma_handle_card, 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (char *) 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUF_OFFSET(txBuffer[pi] 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [port->txpos][0]), 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb->len); 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++port->txpos >= NUM_TX_BUFFER) 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txpos = 0; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If we have flow control on, can we now release it? 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->start) { 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length < fst_txq_low) { 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(port_to_dev 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (port)); 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Nothing to send so break out of the while loop 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdo_bottom_half_rx(struct fst_card_info *card) 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pi; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rx_count = 0; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check for rx completions on all ports on this card */ 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "do_bottom_half_rx\n"); 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (pi = 0, port = card->ports; pi < card->nports; pi++, port++) { 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!port->run) 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(FST_RDB(card, rxDescrRing[pi][port->rxpos].bits) 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds & DMA_OWN) && !(card->dmarx_in_progress)) { 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rx_count > fst_max_reads) { 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't spend forever in receive processing 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Schedule another event 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_intq, card->card_no); 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_int_task); 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; /* Leave the loop */ 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_rx(card, port); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_count++; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The interrupt service routine 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dev_id is our fst_card_info pointer 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14687665a08928f241247afe8c76865cdbe4ef5489bfAdrian Bunkstatic irqreturn_t 146928fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzikfst_intr(int dummy, void *dev_id) 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 147128fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzik struct fst_card_info *card = dev_id; 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rdidx; /* Event buffer indices */ 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int wridx; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int event; /* Actual event for processing */ 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int dma_intcsr = 0; 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int do_card_interrupt; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int int_retry_count; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Check to see if the interrupt was for this card 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return if not 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that the call to clear the interrupt is important 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 148528fc1f5a0c375cb6375fa48e9a8b393f2a189be6Jeff Garzik dbg(DBG_INTR, "intr: %d %p\n", card->irq, card); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state != FST_RUNNING) { 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ("Interrupt received for card %d in a non running state (%d)\n", 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, card->state); 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It is possible to really be running, i.e. we have re-loaded 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a running card 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Clear and reprime the interrupt source 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_clear_intr(card); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Clear and reprime the interrupt source */ 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_clear_intr(card); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Is the interrupt for this card (handshake == 1) 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt = 0; 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDB(card, interruptHandshake) == 1) { 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_CARD_INT; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set the software acknowledge */ 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptHandshake, 0xEE); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Is it a DMA Interrupt 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_intcsr = inl(card->pci_conf + INTCSR_9054); 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dma_intcsr & 0x00200000) { 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DMA Channel 0 (Rx transfer complete) 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_RX, "DMA Rx xfer complete\n"); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x8, card->pci_conf + DMACSR0); 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_rx_dma_complete(card, card->dma_port_rx, 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_rx, card->dma_skb_rx, 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_rxpos); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmarx_in_progress = 0; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_RX_DMA_INT; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dma_intcsr & 0x00400000) { 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DMA Channel 1 (Tx transfer complete) 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "DMA Tx xfer complete\n"); 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds outb(0x8, card->pci_conf + DMACSR1); 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_dma_complete(card, card->dma_port_tx, 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dma_len_tx, card->dma_txpos); 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress = 0; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_card_interrupt += FST_TX_DMA_INT; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Have we been missing Interrupts 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int_retry_count = FST_RDL(card, interruptRetryCount); 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (int_retry_count) { 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Card %d int_retry_count is %d\n", 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, int_retry_count); 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, interruptRetryCount, 0); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!do_card_interrupt) { 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Scehdule the bottom half of the ISR */ 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_intq, card->card_no); 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_int_task); 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drain the event queue */ 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rdidx = FST_RDB(card, interruptEvent.rdindex) & 0x1f; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wridx = FST_RDB(card, interruptEvent.wrindex) & 0x1f; 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (rdidx != wridx) { 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds event = FST_RDB(card, interruptEvent.evntbuff[rdidx]); 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = &card->ports[event & 0x03]; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "Processing Interrupt event: %x\n", event); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (event) { 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TE1_ALMA: 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INTR, "TE1 Alarm intr\n"); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_te1_alarm(card, port); 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLA_CHG: 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLB_CHG: 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLC_CHG: 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CTLD_CHG: 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_intr_ctlchg(card, port); 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTA_SENT: 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTB_SENT: 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTC_SENT: 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ABTD_SENT: 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Abort complete port %d\n", port->index); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXA_UNDF: 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXB_UNDF: 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXC_UNDF: 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TXD_UNDF: 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Difficult to see how we'd get this given that we 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * always load up the entire packet for DMA. 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "Tx underflow port %d\n", port->index); 1599198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa port_to_dev(port)->stats.tx_errors++; 1600198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa port_to_dev(port)->stats.tx_fifo_errors++; 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx underflow on card %d port %d\n", 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case INIT_CPLT: 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INIT, "Card init OK intr\n"); 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case INIT_FAIL: 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_INIT, "Card init FAILED intr\n"); 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_IFAILED; 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("intr: unknown card event %d. ignored\n", 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds event); 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Bump and wrap the index */ 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++rdidx >= MAX_CIRBUFF) 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rdidx = 0; 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptEvent.rdindex, rdidx); 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Check that the shared memory configuration is one that we can handle 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and that some basic parameters are correct 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscheck_started_ok(struct fst_card_info *card) 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Check structure version and end marker */ 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDW(card, smcVersion) != SMC_VERSION) { 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Bad shared memory version %d expected %d\n", 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDW(card, smcVersion), SMC_VERSION); 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_BADVERSION; 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDL(card, endOfSmcSignature) != END_SIG) { 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Missing shared memory signature\n"); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_BADVERSION; 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Firmware status flag, 0x00 = initialising, 0x01 = OK, 0xFF = fail */ 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i = FST_RDB(card, taskStatus)) == 0x01) { 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RUNNING; 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (i == 0xFF) { 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Firmware initialisation failed. Card halted\n"); 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_HALTED; 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (i != 0x00) { 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Unknown firmware status 0x%x\n", i); 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_HALTED; 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Finally check the number of ports reported by firmware against the 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * number we assumed at card detection. Should never happen with 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * existing firmware etc so we just report it for the moment. 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDL(card, numberOfPorts) != card->nports) { 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_warn("Port count mismatch on card %d." 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " Firmware thinks %d we say %d\n", card->card_no, 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, numberOfPorts), card->nports); 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_conf_from_info(struct fst_card_info *card, struct fst_port_info *port, 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info *info) 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char my_framing; 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Set things according to the user set valid flags 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Several of the old options have been invalidated/replaced by the 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * generic hdlc package. 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = 0; 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_PROTO) { 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->proto == FST_RAW) 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_RAW; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_GEN_HDLC; 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_CABLE) 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_SPEED) 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_PHASE) 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[port->index].invertClock, 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->invertClock); 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_MODE) 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, cardMode, info->cardMode); 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_TE1) { 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, suConfig.dataRate, info->lineSpeed); 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.clocking, info->clockSource); 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_E1; 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == E1) 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_E1; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == T1) 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_T1; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->framing == J1) 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds my_framing = FRAMING_J1; 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.framing, my_framing); 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.structure, info->structure); 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.interface, info->interface); 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.coding, info->coding); 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.lineBuildOut, info->lineBuildOut); 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.equalizer, info->equalizer); 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.transparentMode, info->transparentMode); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.loopMode, info->loopMode); 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.range, info->range); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.txBufferMode, info->txBufferMode); 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.rxBufferMode, info->rxBufferMode); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.startingSlot, info->startingSlot); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.losThreshold, info->losThreshold); 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->idleCode) 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.enableIdleCode, 1); 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.enableIdleCode, 0); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, suConfig.idleCode, info->idleCode); 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_TE1) { 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Setting TE1 data\n"); 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Line Speed = %d\n", info->lineSpeed); 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Start slot = %d\n", info->startingSlot); 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Clock source = %d\n", info->clockSource); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Framing = %d\n", my_framing); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Structure = %d\n", info->structure); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("interface = %d\n", info->interface); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Coding = %d\n", info->coding); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Line build out = %d\n", info->lineBuildOut); 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Equaliser = %d\n", info->equalizer); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Transparent mode = %d\n", 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->transparentMode); 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Loop mode = %d\n", info->loopMode); 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Range = %d\n", info->range); 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Tx Buffer mode = %d\n", info->txBufferMode); 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Rx Buffer mode = %d\n", info->rxBufferMode); 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("LOS Threshold = %d\n", info->losThreshold); 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("Idle Code = %d\n", info->idleCode); 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (info->valid & FSTVAL_DEBUG) { 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_debug_mask = info->debug; 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsgather_conf_info(struct fst_card_info *card, struct fst_port_info *port, 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info *info) 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(info, 0, sizeof (struct fstioc_info)); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->kernelVersion = LINUX_VERSION_CODE; 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->nports = card->nports; 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->type = card->type; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->state = card->state; 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->proto = FST_GEN_HDLC; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->index = i; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->debug = fst_debug_mask; 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only mark information as valid if card is running. 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copy the data anyway in case it is useful for diagnostics 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->valid = ((card->state == FST_RUNNING) ? FSTVAL_ALL : FSTVAL_CARD) 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if FST_DEBUG 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | FSTVAL_DEBUG 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineInterface = FST_RDW(card, portConfig[i].lineInterface); 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->internalClock = FST_RDB(card, portConfig[i].internalClock); 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineSpeed = FST_RDL(card, portConfig[i].lineSpeed); 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->invertClock = FST_RDB(card, portConfig[i].invertClock); 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->v24IpSts = FST_RDL(card, v24IpSts[i]); 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->v24OpSts = FST_RDL(card, v24OpSts[i]); 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->clockStatus = FST_RDW(card, clockStatus[i]); 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = FST_RDW(card, cableStatus); 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cardMode = FST_RDW(card, cardMode); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->smcFirmwareVersion = FST_RDL(card, smcFirmwareVersion); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The T2U can report cable presence for both A or B 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in bits 0 and 1 of cableStatus. See which port we are and 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do the mapping. 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->index == 0) { 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port A 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus & 1; 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Port B 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus >> 1; 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->cableStatus = info->cableStatus & 1; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Some additional bits if we are TE1 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->type == FST_TYPE_TE1) { 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineSpeed = FST_RDL(card, suConfig.dataRate); 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->clockSource = FST_RDB(card, suConfig.clocking); 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->framing = FST_RDB(card, suConfig.framing); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->structure = FST_RDB(card, suConfig.structure); 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->interface = FST_RDB(card, suConfig.interface); 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->coding = FST_RDB(card, suConfig.coding); 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineBuildOut = FST_RDB(card, suConfig.lineBuildOut); 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->equalizer = FST_RDB(card, suConfig.equalizer); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->loopMode = FST_RDB(card, suConfig.loopMode); 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->range = FST_RDB(card, suConfig.range); 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->txBufferMode = FST_RDB(card, suConfig.txBufferMode); 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->rxBufferMode = FST_RDB(card, suConfig.rxBufferMode); 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->startingSlot = FST_RDB(card, suConfig.startingSlot); 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->losThreshold = FST_RDB(card, suConfig.losThreshold); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (FST_RDB(card, suConfig.enableIdleCode)) 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->idleCode = FST_RDB(card, suConfig.idleCode); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->idleCode = 0; 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->receiveBufferDelay = 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.receiveBufferDelay); 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->framingErrorCount = 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.framingErrorCount); 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->codeViolationCount = 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDL(card, suStatus.codeViolationCount); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->crcErrorCount = FST_RDL(card, suStatus.crcErrorCount); 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lineAttenuation = FST_RDL(card, suStatus.lineAttenuation); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->lossOfSignal = FST_RDB(card, suStatus.lossOfSignal); 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->receiveRemoteAlarm = 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDB(card, suStatus.receiveRemoteAlarm); 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info->alarmIndicationSignal = 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_RDB(card, suStatus.alarmIndicationSignal); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_set_iface(struct fst_card_info *card, struct fst_port_info *port, 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ifreq *ifr) 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync_serial_settings sync; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size != sizeof (sync)) { 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (&sync, ifr->ifr_settings.ifs_ifsu.sync, sizeof (sync))) { 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sync.loopback) 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (ifr->ifr_settings.type) { 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V35: 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, V35); 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = V35; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V24: 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, V24); 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = V24; 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21: 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, X21); 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = X21; 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21D: 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, X21D); 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = X21D; 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_T1: 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, T1); 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = T1; 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_E1: 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRW(card, portConfig[i].lineInterface, E1); 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->hwif = E1; 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_SYNC_SERIAL: 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (sync.clock_type) { 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CLOCK_EXT: 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[i].internalClock, EXTCLK); 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CLOCK_INT: 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, portConfig[i].internalClock, INTCLK); 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRL(card, portConfig[i].lineSpeed, sync.clock_rate); 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_get_iface(struct fst_card_info *card, struct fst_port_info *port, 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ifreq *ifr) 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync_serial_settings sync; 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* First check what line type is set, we'll default to reporting X.21 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if nothing is set as IF_IFACE_SYNC_SERIAL implies it can't be 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changed 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (port->hwif) { 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case E1: 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_E1; 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case T1: 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_T1; 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case V35: 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_V35; 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case V24: 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_V24; 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case X21D: 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_X21D; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case X21: 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_IFACE_X21; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size == 0) { 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* only type requested */ 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_settings.size < sizeof (sync)) { 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = port->index; 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed); 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Lucky card and linux use same encoding here */ 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.clock_type = FST_RDB(card, portConfig[i].internalClock) == 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INTCLK ? CLOCK_INT : CLOCK_EXT; 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sync.loopback = 0; 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &sync, sizeof (sync))) { 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.size = sizeof (sync); 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_write wrthdr; 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fstioc_info info; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 19955ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro void *buf; 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, ifr->ifr_data); 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_NET_ADMIN)) 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTCPURESET: 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpureset(card); 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RESET; 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTCPURELEASE: 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpurelease(card); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_STARTING; 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTWRITE: /* Code write (download) */ 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* First copy in the header with the length and offset of data 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to write 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_data == NULL) { 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&wrthdr, ifr->ifr_data, 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof (struct fstioc_write))) { 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Sanity check the parameters. We don't support partial writes 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when going over the top 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (wrthdr.size > FST_MEMSIZE || wrthdr.offset > FST_MEMSIZE 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds || wrthdr.size + wrthdr.offset > FST_MEMSIZE) { 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENXIO; 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20375ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro /* Now copy the data to the card. */ 20385ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro 20395ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro buf = kmalloc(wrthdr.size, GFP_KERNEL); 20405ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro if (!buf) 20415ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro return -ENOMEM; 20425ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro 20435ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro if (copy_from_user(buf, 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_data + sizeof (struct fstioc_write), 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wrthdr.size)) { 20465ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro kfree(buf); 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20505ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro memcpy_toio(card->mem + wrthdr.offset, buf, wrthdr.size); 20515ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro kfree(buf); 20525ffa6d7f613ca0198dae235986443cd921fa2e75Al Viro 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Writes to the memory of a card in the reset state constitute 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a download 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_RESET) { 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_DOWNLOAD; 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTGETCONF: 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If card has just been started check the shared memory config 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * version and marker 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_STARTING) { 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds check_started_ok(card); 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If everything checked out enable card interrupts */ 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state == FST_RUNNING) { 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_enable_intr(card); 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FST_WRB(card, interruptHandshake, 0xEE); 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ifr->ifr_data == NULL) { 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gather_conf_info(card, port, &info); 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(ifr->ifr_data, &info, sizeof (info))) { 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSTSETCONF: 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Most of the settings have been moved to the generic ioctls 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this just covers debug and board ident now 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->state != FST_RUNNING) { 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ("Attempt to configure card %d in non-running state (%d)\n", 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, card->state); 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&info, ifr->ifr_data, sizeof (info))) { 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return set_conf_from_info(card, port, &info); 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SIOCWANDEV: 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (ifr->ifr_settings.type) { 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_GET_IFACE: 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fst_get_iface(card, port, ifr); 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_SYNC_SERIAL: 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V35: 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_V24: 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21: 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_X21D: 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_T1: 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_IFACE_E1: 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fst_set_iface(card, port, ifr); 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_PROTO_RAW: 21231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_RAW; 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IF_GET_PROTO: 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode == FST_RAW) { 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type = IF_PROTO_RAW; 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->mode = FST_GEN_HDLC; 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_IOCTL, "Passing this type to hdlc %x\n", 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ifr->ifr_settings.type); 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Not one of ours. Pass through to HDLC package */ 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hdlc_ioctl(dev, ifr, cmd); 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_openport(struct fst_port_info *port) 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int signals; 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only init things if card is actually running. This allows open to 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * succeed for downloads etc. 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->card->state == FST_RUNNING) { 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) { 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, "open: found port already running\n"); 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STOPPORT); 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 0; 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_rx_config(port); 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_tx_config(port); 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_op_raise(port, OPSTS_RTS | OPSTS_DTR); 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STARTPORT); 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 1; 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds signals = FST_RDL(port->card, v24DebouncedSts[port->index]); 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signals & (((port->hwif == X21) || (port->hwif == X21D)) 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? IPSTS_INDICATE : IPSTS_DCD)) 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_on(port_to_dev(port)); 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_carrier_off(port_to_dev(port)); 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = port->txqe - port->txqs; 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe = 0; 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqs = 0; 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_closeport(struct fst_port_info *port) 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->card->state == FST_RUNNING) { 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->run) { 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->run = 0; 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_op_lower(port, OPSTS_RTS | OPSTS_DTR); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, STOPPORT); 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, "close: port not running\n"); 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_open(struct net_device *dev) 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!try_module_get(THIS_MODULE)) 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode != FST_RAW) { 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = hdlc_open(dev); 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_openport(port); 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(dev); 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_close(struct net_device *dev) 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char tx_dma_done; 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char rx_dma_done; 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tx_dma_done = inb(card->pci_conf + DMACSR1); 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_dma_done = inb(card->pci_conf + DMACSR0); 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_OPEN, 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Port Close: tx_dma_in_progress = %d (%x) rx_dma_in_progress = %d (%x)\n", 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->dmatx_in_progress, tx_dma_done, card->dmarx_in_progress, 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rx_dma_done); 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(dev); 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_closeport(dev_to_port(dev)); 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->mode != FST_RAW) { 22411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc_close(dev); 22421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds module_put(THIS_MODULE); 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_attach(struct net_device *dev, unsigned short encoding, unsigned short parity) 22491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setting currently fixed in FarSync card so we check and forget 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (encoding != ENCODING_NRZ || parity != PARITY_CRC16_PR1_CCITT) 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_tx_timeout(struct net_device *dev) 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 2266198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2267198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_aborted_errors++; 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx timeout card %d port %d\n", 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 22701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_issue_cmd(port, ABORTTX); 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->trans_start = jiffies; 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_wake_queue(dev); 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 0; 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_start_xmit(struct sk_buff *skb, struct net_device *dev) 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_port_info *port; 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int txq_length; 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port = dev_to_port(dev); 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = port->card; 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_TX, "fst_start_xmit: length = %d\n", skb->len); 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drop packet with error if we don't have carrier */ 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!netif_carrier_ok(dev)) { 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2292198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2293198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_carrier_errors++; 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Tried to transmit but no carrier on card %d port %d\n", 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 2297ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 22981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Drop it if it's too big! MTU failure ? */ 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (skb->len > LEN_TX_BUFFER) { 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Packet too large %d vs %d\n", skb->len, 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LEN_TX_BUFFER); 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2305198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 2306ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are always going to queue the packet 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so that the bottom half is the only place we tx from 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Check there is room in the port txq 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((txq_length = port->txqe - port->txqs) < 0) { 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the case where the next free has wrapped but the 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * last used hasn't 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds txq_length = txq_length + FST_TXQ_DEPTH; 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length > fst_txq_high) { 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We have got enough buffers in the pipeline. Ask the network 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * layer to stop sending frames down 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds netif_stop_queue(dev); 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->start = 1; /* I'm using this to signal stop sent up */ 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (txq_length == FST_TXQ_DEPTH - 1) { 23331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This shouldn't have happened but such is life 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 2337198191c4a7ce4daba379608fb38b9bc5a4eedc61Krzysztof Halasa dev->stats.tx_errors++; 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "Tx queue overflow card %d port %d\n", 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no, port->index); 2340ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * queue the buffer 23451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&card->card_lock, flags); 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txq[port->txqe] = skb; 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe++; 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (port->txqe == FST_TXQ_DEPTH) 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->txqe = 0; 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&card->card_lock, flags); 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Scehdule the bottom half which now does transmit processing */ 23541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_q_work_item(&fst_work_txq, card->card_no); 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tasklet_schedule(&fst_tx_task); 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2357ec634fe328182a1a098585bfc7b69e5042bdb08dPatrick McHardy return NETDEV_TX_OK; 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Card setup having checked hardware resources. 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should be pretty bizarre if we get an error here (kernel memory 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * exhaustion is one possibility). If we do see a problem we report it 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * via a printk and leave the corresponding interface and all that follow 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * disabled. 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *type_strings[] __devinitdata = { 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "no hardware", /* Should never be seen */ 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T2P", 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T4P", 23711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T1U", 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T2U", 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync T4U", 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "FarSync TE1" 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __devinit 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init_card(struct fst_card_info *card) 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 23821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* We're working on a number of ports based on the card ID. If the 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * firmware detects something different later (should never happen) 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we'll have to revise it in some way then. 23861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 23871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < card->nports; i++) { 23881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = register_hdlc_device(card->ports[i].dev); 23891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err < 0) { 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int j; 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err ("Cannot register HDLC device for port %d" 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " (errno %d)\n", i, -err ); 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = i; j < card->nports; j++) { 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(card->ports[j].dev); 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[j].dev = NULL; 23961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = i; 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_info("%s-%s: %s IRQ%d, %d ports\n", 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port_to_dev(&card->ports[0])->name, 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port_to_dev(&card->ports[card->nports - 1])->name, 24051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds type_strings[card->type], card->irq, card->nports); 24061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2408991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasastatic const struct net_device_ops fst_ops = { 2409991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_open = fst_open, 2410991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_stop = fst_close, 2411991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_change_mtu = hdlc_change_mtu, 2412991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_start_xmit = hdlc_start_xmit, 2413991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_do_ioctl = fst_ioctl, 2414991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa .ndo_tx_timeout = fst_tx_timeout, 2415991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa}; 2416991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initialise card when detected. 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns 0 to indicate success, or errno otherwise. 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __devinit 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_add_one(struct pci_dev *pdev, const struct pci_device_id *ent) 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int firsttime_done = 0; 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static int no_of_cards_added = 0; 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!firsttime_done) { 24311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_info("FarSync WAN driver " FST_USER_VERSION 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " (c) 2001-2004 FarSite Communications Ltd.\n"); 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds firsttime_done = 1; 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_ASS, "The value of debug mask is %x\n", fst_debug_mask); 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We are going to be clever and allow certain cards not to be 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configured. An exclude list can be provided in /etc/modules.conf 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fst_excluded_cards != 0) { 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There are cards to exclude 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < fst_excluded_cards; i++) { 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((pdev->devfn) >> 3 == fst_excluded_list[i]) { 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_info("FarSync PCI device %d not assigned\n", 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (pdev->devfn) >> 3); 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Allocate driver private data */ 2456dd00cc486ab1c17049a535413d1751ef3482141cYoann Padioleau card = kzalloc(sizeof (struct fst_card_info), GFP_KERNEL); 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card == NULL) { 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("FarSync card found but insufficient memory for" 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " driver storage\n"); 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Try to enable the device */ 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = pci_enable_device(pdev)) != 0) { 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Failed to enable card. Err %d\n", -err); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = pci_request_regions(pdev, "FarSync")) !=0) { 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Failed to allocate regions. Err %d\n", -err); 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Get virtual addresses of memory regions */ 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->pci_conf = pci_resource_start(pdev, 1); 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->phys_mem = pci_resource_start(pdev, 2); 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->phys_ctlmem = pci_resource_start(pdev, 3); 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((card->mem = ioremap(card->phys_mem, FST_MEMSIZE)) == NULL) { 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Physical memory remap failed\n"); 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((card->ctlmem = ioremap(card->phys_ctlmem, 0x10)) == NULL) { 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Control memory remap failed\n"); 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 24941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "kernel mem %p, ctlmem %p\n", card->mem, card->ctlmem); 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Register the interrupt handler */ 24981fb9df5d3069064c037c81c0ab8bf783ffa5e373Thomas Gleixner if (request_irq(pdev->irq, fst_intr, IRQF_SHARED, FST_DEV_NAME, card)) { 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Unable to register interrupt %d\n", card->irq); 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 25061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Record info we need */ 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->irq = pdev->irq; 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->type = ent->driver_data; 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->family = ((ent->driver_data == FST_TYPE_T2P) || 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_T4P)) 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ? FST_FAMILY_TXP : FST_FAMILY_TXU; 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((ent->driver_data == FST_TYPE_T1U) || 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_TE1)) 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = 1; 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports = ((ent->driver_data == FST_TYPE_T2P) || 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (ent->driver_data == FST_TYPE_T2U)) ? 2 : 4; 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_UNINIT; 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init ( &card->card_lock ); 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for ( i = 0 ; i < card->nports ; i++ ) { 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = alloc_hdlcdev(&card->ports[i]); 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc_device *hdlc; 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!dev) { 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (i--) 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_netdev(card->ports[i].dev); 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err ("FarSync: out of memory\n"); 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(card->irq, card); 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 25371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].dev = dev; 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].card = card; 25411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].index = i; 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->ports[i].run = 0; 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc = dev_to_hdlc(dev); 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Fill in the net device info */ 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Since this is a PCI setup this is purely 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * informational. Give them the buffer addresses 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and basic card I/O. 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mem_start = card->phys_mem 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + BUF_OFFSET ( txBuffer[i][0][0]); 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->mem_end = card->phys_mem 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds + BUF_OFFSET ( txBuffer[i][NUM_TX_BUFFER][0]); 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->base_addr = card->pci_conf; 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->irq = card->irq; 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2558991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->netdev_ops = &fst_ops; 2559991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->tx_queue_len = FST_TX_QUEUE_LEN; 2560991990a12de42281f81b4e3a6471586d2d0caf6aKrzysztof Hałasa dev->watchdog_timeo = FST_TX_TIMEOUT; 25611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc->attach = fst_attach; 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hdlc->xmit = fst_start_xmit; 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->device = pdev; 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "type %d nports %d irq %d\n", card->type, 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->nports, card->irq); 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg(DBG_PCI, "conf %04x mem %08x ctlmem %08x\n", 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->pci_conf, card->phys_mem, card->phys_ctlmem); 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reset the card's processor */ 25731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_cpureset(card); 25741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->state = FST_RESET; 25751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise DMA (if required) */ 25771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_init_dma(card); 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Record driver data for later use */ 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_set_drvdata(pdev, card); 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remainder of card setup */ 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[no_of_cards_added] = card; 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->card_no = no_of_cards_added++; /* Record instance and bump it */ 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_init_card(card); 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocate a dma buffer for transmit and receives 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_host = 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_alloc_consistent(card->device, FST_MAX_MTU, 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &card->rx_dma_handle_card); 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->rx_dma_handle_host == NULL) { 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Could not allocate rx dma buffer\n"); 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 25961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 25971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 25981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 25991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 26001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 26011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 26021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_host = 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_alloc_consistent(card->device, FST_MAX_MTU, 26051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &card->tx_dma_handle_card); 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->tx_dma_handle_host == NULL) { 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_err("Could not allocate tx dma buffer\n"); 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_disable_device(pdev); 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(card); 26141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* Success */ 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cleanup and close down a card 26221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __devexit 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_remove_one(struct pci_dev *pdev) 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fst_card_info *card; 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card = pci_get_drvdata(pdev); 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < card->nports; i++) { 26321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev = port_to_dev(&card->ports[i]); 26331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_hdlc_device(dev); 26341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_disable_intr(card); 26371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(card->irq, card); 26381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->ctlmem); 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(card->mem); 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_release_regions(pdev); 26421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (card->family == FST_FAMILY_TXU) { 26431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 26441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Free dma buffers 26451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 26461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(card->device, FST_MAX_MTU, 26471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_host, 26481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->rx_dma_handle_card); 26491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_free_consistent(card->device, FST_MAX_MTU, 26501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_host, 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->tx_dma_handle_card); 26521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[card->card_no] = NULL; 26541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_driver fst_driver = { 26571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = FST_NAME, 26581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = fst_pci_dev_id, 26591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = fst_add_one, 26601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .remove = __devexit_p(fst_remove_one), 26611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = NULL, 26621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = NULL, 26631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 26641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 26661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_init(void) 26671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 26691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FST_MAX_CARDS; i++) 26711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fst_card_array[i] = NULL; 26721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_init(&fst_work_q_lock); 2673299176206b266f204be859adf9e66efd06628ab2Jeff Garzik return pci_register_driver(&fst_driver); 26741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 26771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfst_cleanup_module(void) 26781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 26791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk_info("FarSync WAN driver unloading\n"); 26801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unregister_driver(&fst_driver); 26811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fst_init); 26841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fst_cleanup_module); 2685