blob: cc35bf562f3016ee185f714db6f76c2d47a28342 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* pcnet32.c: An AMD PCnet32 ethernet driver for linux. */
2/*
3 * Copyright 1996-1999 Thomas Bogendoerfer
4 *
5 * Derived from the lance driver written 1993,1994,1995 by Donald Becker.
6 *
7 * Copyright 1993 United States Government as represented by the
8 * Director, National Security Agency.
9 *
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
12 *
13 * This driver is for PCnet32 and PCnetPCI based ethercards
14 */
15/**************************************************************************
16 * 23 Oct, 2000.
17 * Fixed a few bugs, related to running the controller in 32bit mode.
18 *
19 * Carsten Langgaard, carstenl@mips.com
20 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
21 *
22 *************************************************************************/
23
24#define DRV_NAME "pcnet32"
Don Fry7de745e2006-09-13 10:16:53 -070025#ifdef CONFIG_PCNET32_NAPI
26#define DRV_VERSION "1.33-NAPI"
27#else
28#define DRV_VERSION "1.33"
29#endif
30#define DRV_RELDATE "27.Jun.2006"
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#define PFX DRV_NAME ": "
32
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050033static const char *const version =
34 DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n";
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36#include <linux/module.h>
37#include <linux/kernel.h>
38#include <linux/string.h>
39#include <linux/errno.h>
40#include <linux/ioport.h>
41#include <linux/slab.h>
42#include <linux/interrupt.h>
43#include <linux/pci.h>
44#include <linux/delay.h>
45#include <linux/init.h>
46#include <linux/ethtool.h>
47#include <linux/mii.h>
48#include <linux/crc32.h>
49#include <linux/netdevice.h>
50#include <linux/etherdevice.h>
51#include <linux/skbuff.h>
52#include <linux/spinlock.h>
53#include <linux/moduleparam.h>
54#include <linux/bitops.h>
55
56#include <asm/dma.h>
57#include <asm/io.h>
58#include <asm/uaccess.h>
59#include <asm/irq.h>
60
61/*
62 * PCI device identifiers for "new style" Linux PCI Device Drivers
63 */
64static struct pci_device_id pcnet32_pci_tbl[] = {
Don Fryf2622a22006-06-29 13:52:58 -070065 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), },
66 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), },
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050067
68 /*
69 * Adapters that were sold with IBM's RS/6000 or pSeries hardware have
70 * the incorrect vendor id.
71 */
Don Fryf2622a22006-06-29 13:52:58 -070072 { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE),
73 .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, },
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050074
75 { } /* terminate list */
Linus Torvalds1da177e2005-04-16 15:20:36 -070076};
77
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050078MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80static int cards_found;
81
82/*
83 * VLB I/O addresses
84 */
85static unsigned int pcnet32_portlist[] __initdata =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050086 { 0x300, 0x320, 0x340, 0x360, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88static int pcnet32_debug = 0;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -050089static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */
90static int pcnet32vlb; /* check for VLB cards ? */
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92static struct net_device *pcnet32_dev;
93
94static int max_interrupt_work = 2;
95static int rx_copybreak = 200;
96
97#define PCNET32_PORT_AUI 0x00
98#define PCNET32_PORT_10BT 0x01
99#define PCNET32_PORT_GPSI 0x02
100#define PCNET32_PORT_MII 0x03
101
102#define PCNET32_PORT_PORTSEL 0x03
103#define PCNET32_PORT_ASEL 0x04
104#define PCNET32_PORT_100 0x40
105#define PCNET32_PORT_FD 0x80
106
107#define PCNET32_DMA_MASK 0xffffffff
108
109#define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ))
110#define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4))
111
112/*
113 * table to translate option values from tulip
114 * to internal options
115 */
Arjan van de Venf71e1302006-03-03 21:33:57 -0500116static const unsigned char options_mapping[] = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500117 PCNET32_PORT_ASEL, /* 0 Auto-select */
118 PCNET32_PORT_AUI, /* 1 BNC/AUI */
119 PCNET32_PORT_AUI, /* 2 AUI/BNC */
120 PCNET32_PORT_ASEL, /* 3 not supported */
121 PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */
122 PCNET32_PORT_ASEL, /* 5 not supported */
123 PCNET32_PORT_ASEL, /* 6 not supported */
124 PCNET32_PORT_ASEL, /* 7 not supported */
125 PCNET32_PORT_ASEL, /* 8 not supported */
126 PCNET32_PORT_MII, /* 9 MII 10baseT */
127 PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */
128 PCNET32_PORT_MII, /* 11 MII (autosel) */
129 PCNET32_PORT_10BT, /* 12 10BaseT */
130 PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */
131 /* 14 MII 100BaseTx-FD */
132 PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD,
133 PCNET32_PORT_ASEL /* 15 not supported */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134};
135
136static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500137 "Loopback test (offline)"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138};
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140#define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN)
141
Don Fryac62ef02006-03-20 15:26:03 -0800142#define PCNET32_NUM_REGS 136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500144#define MAX_UNITS 8 /* More are supported, limit only on options */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145static int options[MAX_UNITS];
146static int full_duplex[MAX_UNITS];
147static int homepna[MAX_UNITS];
148
149/*
150 * Theory of Operation
151 *
152 * This driver uses the same software structure as the normal lance
153 * driver. So look for a verbose description in lance.c. The differences
154 * to the normal lance driver is the use of the 32bit mode of PCnet32
155 * and PCnetPCI chips. Because these chips are 32bit chips, there is no
156 * 16MB limitation and we don't need bounce buffers.
157 */
158
159/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 * Set the number of Tx and Rx buffers, using Log_2(# buffers).
161 * Reasonable default values are 4 Tx buffers, and 16 Rx buffers.
162 * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4).
163 */
164#ifndef PCNET32_LOG_TX_BUFFERS
Hubert WS Lineabf0412005-09-14 11:39:25 -0700165#define PCNET32_LOG_TX_BUFFERS 4
166#define PCNET32_LOG_RX_BUFFERS 5
167#define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */
168#define PCNET32_LOG_MAX_RX_BUFFERS 9
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169#endif
170
171#define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS))
Hubert WS Lineabf0412005-09-14 11:39:25 -0700172#define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174#define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS))
Hubert WS Lineabf0412005-09-14 11:39:25 -0700175#define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
177#define PKT_BUF_SZ 1544
178
179/* Offsets from base I/O address. */
180#define PCNET32_WIO_RDP 0x10
181#define PCNET32_WIO_RAP 0x12
182#define PCNET32_WIO_RESET 0x14
183#define PCNET32_WIO_BDP 0x16
184
185#define PCNET32_DWIO_RDP 0x10
186#define PCNET32_DWIO_RAP 0x14
187#define PCNET32_DWIO_RESET 0x18
188#define PCNET32_DWIO_BDP 0x1C
189
190#define PCNET32_TOTAL_SIZE 0x20
191
Don Fry06c87852006-06-29 13:54:38 -0700192#define CSR0 0
193#define CSR0_INIT 0x1
194#define CSR0_START 0x2
195#define CSR0_STOP 0x4
196#define CSR0_TXPOLL 0x8
197#define CSR0_INTEN 0x40
198#define CSR0_IDON 0x0100
199#define CSR0_NORMAL (CSR0_START | CSR0_INTEN)
200#define PCNET32_INIT_LOW 1
201#define PCNET32_INIT_HIGH 2
202#define CSR3 3
203#define CSR4 4
204#define CSR5 5
205#define CSR5_SUSPEND 0x0001
206#define CSR15 15
207#define PCNET32_MC_FILTER 8
208
Don Fry8d916262006-08-22 10:22:37 -0700209#define PCNET32_79C970A 0x2621
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211/* The PCNET32 Rx and Tx ring descriptors. */
212struct pcnet32_rx_head {
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500213 u32 base;
Don Fryb368a3f2006-09-13 10:16:07 -0700214 s16 buf_length; /* two`s complement of length */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500215 s16 status;
216 u32 msg_length;
217 u32 reserved;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218};
219
220struct pcnet32_tx_head {
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500221 u32 base;
Don Fryb368a3f2006-09-13 10:16:07 -0700222 s16 length; /* two`s complement of length */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500223 s16 status;
224 u32 misc;
225 u32 reserved;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226};
227
228/* The PCNET32 32-Bit initialization block, described in databook. */
229struct pcnet32_init_block {
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500230 u16 mode;
231 u16 tlen_rlen;
232 u8 phys_addr[6];
233 u16 reserved;
234 u32 filter[2];
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500235 /* Receive and transmit ring base, along with extra bits. */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500236 u32 rx_ring;
237 u32 tx_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238};
239
240/* PCnet32 access functions */
241struct pcnet32_access {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500242 u16 (*read_csr) (unsigned long, int);
243 void (*write_csr) (unsigned long, int, u16);
244 u16 (*read_bcr) (unsigned long, int);
245 void (*write_bcr) (unsigned long, int, u16);
246 u16 (*read_rap) (unsigned long);
247 void (*write_rap) (unsigned long, u16);
248 void (*reset) (unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249};
250
251/*
Hubert WS Lin76209922005-09-14 11:39:27 -0700252 * The first field of pcnet32_private is read by the ethernet device
253 * so the structure should be allocated using pci_alloc_consistent().
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 */
255struct pcnet32_private {
Don Fry6ecb7662007-03-06 10:45:23 -0800256 struct pcnet32_init_block *init_block;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500257 /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500258 struct pcnet32_rx_head *rx_ring;
259 struct pcnet32_tx_head *tx_ring;
Don Fry6ecb7662007-03-06 10:45:23 -0800260 dma_addr_t init_dma_addr;/* DMA address of beginning of the init block,
261 returned by pci_alloc_consistent */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500262 struct pci_dev *pci_dev;
263 const char *name;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500264 /* The saved address of a sent-in-place packet/buffer, for skfree(). */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500265 struct sk_buff **tx_skbuff;
266 struct sk_buff **rx_skbuff;
267 dma_addr_t *tx_dma_addr;
268 dma_addr_t *rx_dma_addr;
269 struct pcnet32_access a;
270 spinlock_t lock; /* Guard lock */
271 unsigned int cur_rx, cur_tx; /* The next free ring entry */
272 unsigned int rx_ring_size; /* current rx ring size */
273 unsigned int tx_ring_size; /* current tx ring size */
274 unsigned int rx_mod_mask; /* rx ring modular mask */
275 unsigned int tx_mod_mask; /* tx ring modular mask */
276 unsigned short rx_len_bits;
277 unsigned short tx_len_bits;
278 dma_addr_t rx_ring_dma_addr;
279 dma_addr_t tx_ring_dma_addr;
280 unsigned int dirty_rx, /* ring entries to be freed. */
281 dirty_tx;
282
283 struct net_device_stats stats;
284 char tx_full;
285 char phycount; /* number of phys found */
286 int options;
287 unsigned int shared_irq:1, /* shared irq possible */
288 dxsuflo:1, /* disable transmit stop on uflo */
289 mii:1; /* mii port available */
290 struct net_device *next;
291 struct mii_if_info mii_if;
292 struct timer_list watchdog_timer;
293 struct timer_list blink_timer;
294 u32 msg_enable; /* debug message level */
Don Fryac62ef02006-03-20 15:26:03 -0800295
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500296 /* each bit indicates an available PHY */
Jeff Garzik0b5bf222006-03-21 16:22:47 -0500297 u32 phymask;
Don Fry8d916262006-08-22 10:22:37 -0700298 unsigned short chip_version; /* which variant this is */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299};
300
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500301static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *);
302static int pcnet32_probe1(unsigned long, int, struct pci_dev *);
303static int pcnet32_open(struct net_device *);
304static int pcnet32_init_ring(struct net_device *);
305static int pcnet32_start_xmit(struct sk_buff *, struct net_device *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500306static void pcnet32_tx_timeout(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100307static irqreturn_t pcnet32_interrupt(int, void *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500308static int pcnet32_close(struct net_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309static struct net_device_stats *pcnet32_get_stats(struct net_device *);
310static void pcnet32_load_multicast(struct net_device *dev);
311static void pcnet32_set_multicast_list(struct net_device *);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500312static int pcnet32_ioctl(struct net_device *, struct ifreq *, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313static void pcnet32_watchdog(struct net_device *);
314static int mdio_read(struct net_device *dev, int phy_id, int reg_num);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500315static void mdio_write(struct net_device *dev, int phy_id, int reg_num,
316 int val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits);
318static void pcnet32_ethtool_test(struct net_device *dev,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500319 struct ethtool_test *eth_test, u64 * data);
320static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321static int pcnet32_phys_id(struct net_device *dev, u32 data);
322static void pcnet32_led_blink_callback(struct net_device *dev);
323static int pcnet32_get_regs_len(struct net_device *dev);
324static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500325 void *ptr);
Don Fry1bcd3152005-04-29 14:51:17 -0700326static void pcnet32_purge_tx_ring(struct net_device *dev);
Don Frya88c8442005-11-01 12:04:33 -0800327static int pcnet32_alloc_ring(struct net_device *dev, char *name);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700328static void pcnet32_free_ring(struct net_device *dev);
Don Fryac62ef02006-03-20 15:26:03 -0800329static void pcnet32_check_media(struct net_device *dev, int verbose);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700330
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500331static u16 pcnet32_wio_read_csr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500333 outw(index, addr + PCNET32_WIO_RAP);
334 return inw(addr + PCNET32_WIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335}
336
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500337static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500339 outw(index, addr + PCNET32_WIO_RAP);
340 outw(val, addr + PCNET32_WIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341}
342
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500343static u16 pcnet32_wio_read_bcr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500345 outw(index, addr + PCNET32_WIO_RAP);
346 return inw(addr + PCNET32_WIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347}
348
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500349static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500351 outw(index, addr + PCNET32_WIO_RAP);
352 outw(val, addr + PCNET32_WIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353}
354
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500355static u16 pcnet32_wio_read_rap(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500357 return inw(addr + PCNET32_WIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358}
359
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500360static void pcnet32_wio_write_rap(unsigned long addr, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500362 outw(val, addr + PCNET32_WIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363}
364
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500365static void pcnet32_wio_reset(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500367 inw(addr + PCNET32_WIO_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368}
369
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500370static int pcnet32_wio_check(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500372 outw(88, addr + PCNET32_WIO_RAP);
373 return (inw(addr + PCNET32_WIO_RAP) == 88);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374}
375
376static struct pcnet32_access pcnet32_wio = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500377 .read_csr = pcnet32_wio_read_csr,
378 .write_csr = pcnet32_wio_write_csr,
379 .read_bcr = pcnet32_wio_read_bcr,
380 .write_bcr = pcnet32_wio_write_bcr,
381 .read_rap = pcnet32_wio_read_rap,
382 .write_rap = pcnet32_wio_write_rap,
383 .reset = pcnet32_wio_reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384};
385
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500386static u16 pcnet32_dwio_read_csr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500388 outl(index, addr + PCNET32_DWIO_RAP);
389 return (inl(addr + PCNET32_DWIO_RDP) & 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390}
391
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500392static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500394 outl(index, addr + PCNET32_DWIO_RAP);
395 outl(val, addr + PCNET32_DWIO_RDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396}
397
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500398static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500400 outl(index, addr + PCNET32_DWIO_RAP);
401 return (inl(addr + PCNET32_DWIO_BDP) & 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402}
403
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500404static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500406 outl(index, addr + PCNET32_DWIO_RAP);
407 outl(val, addr + PCNET32_DWIO_BDP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408}
409
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500410static u16 pcnet32_dwio_read_rap(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500412 return (inl(addr + PCNET32_DWIO_RAP) & 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413}
414
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500415static void pcnet32_dwio_write_rap(unsigned long addr, u16 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500417 outl(val, addr + PCNET32_DWIO_RAP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418}
419
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500420static void pcnet32_dwio_reset(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500422 inl(addr + PCNET32_DWIO_RESET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423}
424
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500425static int pcnet32_dwio_check(unsigned long addr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500427 outl(88, addr + PCNET32_DWIO_RAP);
428 return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429}
430
431static struct pcnet32_access pcnet32_dwio = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500432 .read_csr = pcnet32_dwio_read_csr,
433 .write_csr = pcnet32_dwio_write_csr,
434 .read_bcr = pcnet32_dwio_read_bcr,
435 .write_bcr = pcnet32_dwio_write_bcr,
436 .read_rap = pcnet32_dwio_read_rap,
437 .write_rap = pcnet32_dwio_write_rap,
438 .reset = pcnet32_dwio_reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439};
440
Don Fry06c87852006-06-29 13:54:38 -0700441static void pcnet32_netif_stop(struct net_device *dev)
442{
443 dev->trans_start = jiffies;
444 netif_poll_disable(dev);
445 netif_tx_disable(dev);
446}
447
448static void pcnet32_netif_start(struct net_device *dev)
449{
450 netif_wake_queue(dev);
451 netif_poll_enable(dev);
452}
453
454/*
455 * Allocate space for the new sized tx ring.
456 * Free old resources
457 * Save new resources.
458 * Any failure keeps old resources.
459 * Must be called with lp->lock held.
460 */
461static void pcnet32_realloc_tx_ring(struct net_device *dev,
462 struct pcnet32_private *lp,
463 unsigned int size)
464{
465 dma_addr_t new_ring_dma_addr;
466 dma_addr_t *new_dma_addr_list;
467 struct pcnet32_tx_head *new_tx_ring;
468 struct sk_buff **new_skb_list;
469
470 pcnet32_purge_tx_ring(dev);
471
472 new_tx_ring = pci_alloc_consistent(lp->pci_dev,
473 sizeof(struct pcnet32_tx_head) *
474 (1 << size),
475 &new_ring_dma_addr);
476 if (new_tx_ring == NULL) {
477 if (netif_msg_drv(lp))
478 printk("\n" KERN_ERR
479 "%s: Consistent memory allocation failed.\n",
480 dev->name);
481 return;
482 }
483 memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size));
484
485 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
486 GFP_ATOMIC);
487 if (!new_dma_addr_list) {
488 if (netif_msg_drv(lp))
489 printk("\n" KERN_ERR
490 "%s: Memory allocation failed.\n", dev->name);
491 goto free_new_tx_ring;
492 }
493
494 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
495 GFP_ATOMIC);
496 if (!new_skb_list) {
497 if (netif_msg_drv(lp))
498 printk("\n" KERN_ERR
499 "%s: Memory allocation failed.\n", dev->name);
500 goto free_new_lists;
501 }
502
503 kfree(lp->tx_skbuff);
504 kfree(lp->tx_dma_addr);
505 pci_free_consistent(lp->pci_dev,
506 sizeof(struct pcnet32_tx_head) *
507 lp->tx_ring_size, lp->tx_ring,
508 lp->tx_ring_dma_addr);
509
510 lp->tx_ring_size = (1 << size);
511 lp->tx_mod_mask = lp->tx_ring_size - 1;
512 lp->tx_len_bits = (size << 12);
513 lp->tx_ring = new_tx_ring;
514 lp->tx_ring_dma_addr = new_ring_dma_addr;
515 lp->tx_dma_addr = new_dma_addr_list;
516 lp->tx_skbuff = new_skb_list;
517 return;
518
519 free_new_lists:
520 kfree(new_dma_addr_list);
521 free_new_tx_ring:
522 pci_free_consistent(lp->pci_dev,
523 sizeof(struct pcnet32_tx_head) *
524 (1 << size),
525 new_tx_ring,
526 new_ring_dma_addr);
527 return;
528}
529
530/*
531 * Allocate space for the new sized rx ring.
532 * Re-use old receive buffers.
533 * alloc extra buffers
534 * free unneeded buffers
535 * free unneeded buffers
536 * Save new resources.
537 * Any failure keeps old resources.
538 * Must be called with lp->lock held.
539 */
540static void pcnet32_realloc_rx_ring(struct net_device *dev,
541 struct pcnet32_private *lp,
542 unsigned int size)
543{
544 dma_addr_t new_ring_dma_addr;
545 dma_addr_t *new_dma_addr_list;
546 struct pcnet32_rx_head *new_rx_ring;
547 struct sk_buff **new_skb_list;
548 int new, overlap;
549
550 new_rx_ring = pci_alloc_consistent(lp->pci_dev,
551 sizeof(struct pcnet32_rx_head) *
552 (1 << size),
553 &new_ring_dma_addr);
554 if (new_rx_ring == NULL) {
555 if (netif_msg_drv(lp))
556 printk("\n" KERN_ERR
557 "%s: Consistent memory allocation failed.\n",
558 dev->name);
559 return;
560 }
561 memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size));
562
563 new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t),
564 GFP_ATOMIC);
565 if (!new_dma_addr_list) {
566 if (netif_msg_drv(lp))
567 printk("\n" KERN_ERR
568 "%s: Memory allocation failed.\n", dev->name);
569 goto free_new_rx_ring;
570 }
571
572 new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *),
573 GFP_ATOMIC);
574 if (!new_skb_list) {
575 if (netif_msg_drv(lp))
576 printk("\n" KERN_ERR
577 "%s: Memory allocation failed.\n", dev->name);
578 goto free_new_lists;
579 }
580
581 /* first copy the current receive buffers */
582 overlap = min(size, lp->rx_ring_size);
583 for (new = 0; new < overlap; new++) {
584 new_rx_ring[new] = lp->rx_ring[new];
585 new_dma_addr_list[new] = lp->rx_dma_addr[new];
586 new_skb_list[new] = lp->rx_skbuff[new];
587 }
588 /* now allocate any new buffers needed */
589 for (; new < size; new++ ) {
590 struct sk_buff *rx_skbuff;
591 new_skb_list[new] = dev_alloc_skb(PKT_BUF_SZ);
592 if (!(rx_skbuff = new_skb_list[new])) {
593 /* keep the original lists and buffers */
594 if (netif_msg_drv(lp))
595 printk(KERN_ERR
596 "%s: pcnet32_realloc_rx_ring dev_alloc_skb failed.\n",
597 dev->name);
598 goto free_all_new;
599 }
600 skb_reserve(rx_skbuff, 2);
601
602 new_dma_addr_list[new] =
603 pci_map_single(lp->pci_dev, rx_skbuff->data,
604 PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE);
605 new_rx_ring[new].base = (u32) le32_to_cpu(new_dma_addr_list[new]);
606 new_rx_ring[new].buf_length = le16_to_cpu(2 - PKT_BUF_SZ);
607 new_rx_ring[new].status = le16_to_cpu(0x8000);
608 }
609 /* and free any unneeded buffers */
610 for (; new < lp->rx_ring_size; new++) {
611 if (lp->rx_skbuff[new]) {
612 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new],
613 PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE);
614 dev_kfree_skb(lp->rx_skbuff[new]);
615 }
616 }
617
618 kfree(lp->rx_skbuff);
619 kfree(lp->rx_dma_addr);
620 pci_free_consistent(lp->pci_dev,
621 sizeof(struct pcnet32_rx_head) *
622 lp->rx_ring_size, lp->rx_ring,
623 lp->rx_ring_dma_addr);
624
625 lp->rx_ring_size = (1 << size);
626 lp->rx_mod_mask = lp->rx_ring_size - 1;
627 lp->rx_len_bits = (size << 4);
628 lp->rx_ring = new_rx_ring;
629 lp->rx_ring_dma_addr = new_ring_dma_addr;
630 lp->rx_dma_addr = new_dma_addr_list;
631 lp->rx_skbuff = new_skb_list;
632 return;
633
634 free_all_new:
635 for (; --new >= lp->rx_ring_size; ) {
636 if (new_skb_list[new]) {
637 pci_unmap_single(lp->pci_dev, new_dma_addr_list[new],
638 PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE);
639 dev_kfree_skb(new_skb_list[new]);
640 }
641 }
642 kfree(new_skb_list);
643 free_new_lists:
644 kfree(new_dma_addr_list);
645 free_new_rx_ring:
646 pci_free_consistent(lp->pci_dev,
647 sizeof(struct pcnet32_rx_head) *
648 (1 << size),
649 new_rx_ring,
650 new_ring_dma_addr);
651 return;
652}
653
Don Fryac5bfe42006-06-29 13:55:27 -0700654static void pcnet32_purge_rx_ring(struct net_device *dev)
655{
656 struct pcnet32_private *lp = dev->priv;
657 int i;
658
659 /* free all allocated skbuffs */
660 for (i = 0; i < lp->rx_ring_size; i++) {
661 lp->rx_ring[i].status = 0; /* CPU owns buffer */
662 wmb(); /* Make sure adapter sees owner change */
663 if (lp->rx_skbuff[i]) {
664 pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i],
665 PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE);
666 dev_kfree_skb_any(lp->rx_skbuff[i]);
667 }
668 lp->rx_skbuff[i] = NULL;
669 lp->rx_dma_addr[i] = 0;
670 }
671}
672
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673#ifdef CONFIG_NET_POLL_CONTROLLER
674static void pcnet32_poll_controller(struct net_device *dev)
675{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500676 disable_irq(dev->irq);
David Howells7d12e782006-10-05 14:55:46 +0100677 pcnet32_interrupt(0, dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500678 enable_irq(dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679}
680#endif
681
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
683{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500684 struct pcnet32_private *lp = dev->priv;
685 unsigned long flags;
686 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500688 if (lp->mii) {
689 spin_lock_irqsave(&lp->lock, flags);
690 mii_ethtool_gset(&lp->mii_if, cmd);
691 spin_unlock_irqrestore(&lp->lock, flags);
692 r = 0;
693 }
694 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695}
696
697static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
698{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500699 struct pcnet32_private *lp = dev->priv;
700 unsigned long flags;
701 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500703 if (lp->mii) {
704 spin_lock_irqsave(&lp->lock, flags);
705 r = mii_ethtool_sset(&lp->mii_if, cmd);
706 spin_unlock_irqrestore(&lp->lock, flags);
707 }
708 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709}
710
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500711static void pcnet32_get_drvinfo(struct net_device *dev,
712 struct ethtool_drvinfo *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500714 struct pcnet32_private *lp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500716 strcpy(info->driver, DRV_NAME);
717 strcpy(info->version, DRV_VERSION);
718 if (lp->pci_dev)
719 strcpy(info->bus_info, pci_name(lp->pci_dev));
720 else
721 sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722}
723
724static u32 pcnet32_get_link(struct net_device *dev)
725{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500726 struct pcnet32_private *lp = dev->priv;
727 unsigned long flags;
728 int r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500730 spin_lock_irqsave(&lp->lock, flags);
731 if (lp->mii) {
732 r = mii_link_ok(&lp->mii_if);
Don Fry8d916262006-08-22 10:22:37 -0700733 } else if (lp->chip_version >= PCNET32_79C970A) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500734 ulong ioaddr = dev->base_addr; /* card base I/O address */
735 r = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
Don Fry8d916262006-08-22 10:22:37 -0700736 } else { /* can not detect link on really old chips */
737 r = 1;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500738 }
739 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500741 return r;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742}
743
744static u32 pcnet32_get_msglevel(struct net_device *dev)
745{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500746 struct pcnet32_private *lp = dev->priv;
747 return lp->msg_enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748}
749
750static void pcnet32_set_msglevel(struct net_device *dev, u32 value)
751{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500752 struct pcnet32_private *lp = dev->priv;
753 lp->msg_enable = value;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754}
755
756static int pcnet32_nway_reset(struct net_device *dev)
757{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500758 struct pcnet32_private *lp = dev->priv;
759 unsigned long flags;
760 int r = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500762 if (lp->mii) {
763 spin_lock_irqsave(&lp->lock, flags);
764 r = mii_nway_restart(&lp->mii_if);
765 spin_unlock_irqrestore(&lp->lock, flags);
766 }
767 return r;
768}
769
770static void pcnet32_get_ringparam(struct net_device *dev,
771 struct ethtool_ringparam *ering)
772{
773 struct pcnet32_private *lp = dev->priv;
774
Don Fry6dcd60c2006-06-29 13:53:23 -0700775 ering->tx_max_pending = TX_MAX_RING_SIZE;
776 ering->tx_pending = lp->tx_ring_size;
777 ering->rx_max_pending = RX_MAX_RING_SIZE;
778 ering->rx_pending = lp->rx_ring_size;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500779}
780
781static int pcnet32_set_ringparam(struct net_device *dev,
782 struct ethtool_ringparam *ering)
783{
784 struct pcnet32_private *lp = dev->priv;
785 unsigned long flags;
Don Fry06c87852006-06-29 13:54:38 -0700786 unsigned int size;
787 ulong ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500788 int i;
789
790 if (ering->rx_mini_pending || ering->rx_jumbo_pending)
791 return -EINVAL;
792
793 if (netif_running(dev))
Don Fry06c87852006-06-29 13:54:38 -0700794 pcnet32_netif_stop(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500795
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 spin_lock_irqsave(&lp->lock, flags);
Don Fry06c87852006-06-29 13:54:38 -0700797 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
798
799 size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500800
801 /* set the minimum ring size to 4, to allow the loopback test to work
802 * unchanged.
803 */
804 for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) {
Don Fry06c87852006-06-29 13:54:38 -0700805 if (size <= (1 << i))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500806 break;
807 }
Don Fry06c87852006-06-29 13:54:38 -0700808 if ((1 << i) != lp->tx_ring_size)
809 pcnet32_realloc_tx_ring(dev, lp, i);
Don Fryb368a3f2006-09-13 10:16:07 -0700810
Don Fry06c87852006-06-29 13:54:38 -0700811 size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500812 for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) {
Don Fry06c87852006-06-29 13:54:38 -0700813 if (size <= (1 << i))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500814 break;
815 }
Don Fry06c87852006-06-29 13:54:38 -0700816 if ((1 << i) != lp->rx_ring_size)
817 pcnet32_realloc_rx_ring(dev, lp, i);
Don Fryb368a3f2006-09-13 10:16:07 -0700818
Don Fry06c87852006-06-29 13:54:38 -0700819 dev->weight = lp->rx_ring_size / 2;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500820
Don Fry06c87852006-06-29 13:54:38 -0700821 if (netif_running(dev)) {
822 pcnet32_netif_start(dev);
823 pcnet32_restart(dev, CSR0_NORMAL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500824 }
825
Don Frya88c8442005-11-01 12:04:33 -0800826 spin_unlock_irqrestore(&lp->lock, flags);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700827
Don Fry06c87852006-06-29 13:54:38 -0700828 if (netif_msg_drv(lp))
829 printk(KERN_INFO
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500830 "%s: Ring Param Settings: RX: %d, TX: %d\n", dev->name,
831 lp->rx_ring_size, lp->tx_ring_size);
Hubert WS Lineabf0412005-09-14 11:39:25 -0700832
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500833 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834}
835
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500836static void pcnet32_get_strings(struct net_device *dev, u32 stringset,
837 u8 * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500839 memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840}
841
842static int pcnet32_self_test_count(struct net_device *dev)
843{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500844 return PCNET32_TEST_LEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845}
846
847static void pcnet32_ethtool_test(struct net_device *dev,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500848 struct ethtool_test *test, u64 * data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500850 struct pcnet32_private *lp = dev->priv;
851 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500853 if (test->flags == ETH_TEST_FL_OFFLINE) {
854 rc = pcnet32_loopback_test(dev, data);
855 if (rc) {
856 if (netif_msg_hw(lp))
857 printk(KERN_DEBUG "%s: Loopback test failed.\n",
858 dev->name);
859 test->flags |= ETH_TEST_FL_FAILED;
860 } else if (netif_msg_hw(lp))
861 printk(KERN_DEBUG "%s: Loopback test passed.\n",
862 dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 } else if (netif_msg_hw(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500864 printk(KERN_DEBUG
865 "%s: No tests to run (specify 'Offline' on ethtool).",
866 dev->name);
867} /* end pcnet32_ethtool_test */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500869static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500871 struct pcnet32_private *lp = dev->priv;
872 struct pcnet32_access *a = &lp->a; /* access to registers */
873 ulong ioaddr = dev->base_addr; /* card base I/O address */
874 struct sk_buff *skb; /* sk buff */
875 int x, i; /* counters */
876 int numbuffs = 4; /* number of TX/RX buffers and descs */
877 u16 status = 0x8300; /* TX ring status */
878 u16 teststatus; /* test of ring status */
879 int rc; /* return code */
880 int size; /* size of packets */
881 unsigned char *packet; /* source packet data */
882 static const int data_len = 60; /* length of source packets */
883 unsigned long flags;
884 unsigned long ticks;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500886 rc = 1; /* default to fail */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500888 if (netif_running(dev))
Don Fry7de745e2006-09-13 10:16:53 -0700889#ifdef CONFIG_PCNET32_NAPI
890 pcnet32_netif_stop(dev);
891#else
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500892 pcnet32_close(dev);
Don Fry7de745e2006-09-13 10:16:53 -0700893#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500895 spin_lock_irqsave(&lp->lock, flags);
Don Fryac5bfe42006-06-29 13:55:27 -0700896 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */
897
898 numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500900 /* Reset the PCNET32 */
901 lp->a.reset(ioaddr);
Don Fryb368a3f2006-09-13 10:16:07 -0700902 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500904 /* switch pcnet32 to 32bit mode */
905 lp->a.write_bcr(ioaddr, 20, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500907 /* purge & init rings but don't actually restart */
908 pcnet32_restart(dev, 0x0000);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909
Don Fryac5bfe42006-06-29 13:55:27 -0700910 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500912 /* Initialize Transmit buffers. */
913 size = data_len + 15;
914 for (x = 0; x < numbuffs; x++) {
915 if (!(skb = dev_alloc_skb(size))) {
916 if (netif_msg_hw(lp))
917 printk(KERN_DEBUG
918 "%s: Cannot allocate skb at line: %d!\n",
919 dev->name, __LINE__);
920 goto clean_up;
921 } else {
922 packet = skb->data;
923 skb_put(skb, size); /* create space for data */
924 lp->tx_skbuff[x] = skb;
925 lp->tx_ring[x].length = le16_to_cpu(-skb->len);
926 lp->tx_ring[x].misc = 0;
927
928 /* put DA and SA into the skb */
929 for (i = 0; i < 6; i++)
930 *packet++ = dev->dev_addr[i];
931 for (i = 0; i < 6; i++)
932 *packet++ = dev->dev_addr[i];
933 /* type */
934 *packet++ = 0x08;
935 *packet++ = 0x06;
936 /* packet number */
937 *packet++ = x;
938 /* fill packet with data */
939 for (i = 0; i < data_len; i++)
940 *packet++ = i;
941
942 lp->tx_dma_addr[x] =
943 pci_map_single(lp->pci_dev, skb->data, skb->len,
944 PCI_DMA_TODEVICE);
945 lp->tx_ring[x].base =
946 (u32) le32_to_cpu(lp->tx_dma_addr[x]);
947 wmb(); /* Make sure owner changes after all others are visible */
948 lp->tx_ring[x].status = le16_to_cpu(status);
949 }
950 }
951
Don Fryac5bfe42006-06-29 13:55:27 -0700952 x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */
953 a->write_bcr(ioaddr, 32, x | 0x0002);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500954
Don Fryac5bfe42006-06-29 13:55:27 -0700955 /* set int loopback in CSR15 */
956 x = a->read_csr(ioaddr, CSR15) & 0xfffc;
957 lp->a.write_csr(ioaddr, CSR15, x | 0x0044);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500958
959 teststatus = le16_to_cpu(0x8000);
Don Fryac5bfe42006-06-29 13:55:27 -0700960 lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500961
962 /* Check status of descriptors */
963 for (x = 0; x < numbuffs; x++) {
964 ticks = 0;
965 rmb();
966 while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) {
967 spin_unlock_irqrestore(&lp->lock, flags);
Don Fryac5bfe42006-06-29 13:55:27 -0700968 msleep(1);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500969 spin_lock_irqsave(&lp->lock, flags);
970 rmb();
971 ticks++;
972 }
973 if (ticks == 200) {
974 if (netif_msg_hw(lp))
975 printk("%s: Desc %d failed to reset!\n",
976 dev->name, x);
977 break;
978 }
979 }
980
Don Fryac5bfe42006-06-29 13:55:27 -0700981 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -0500982 wmb();
983 if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) {
984 printk(KERN_DEBUG "%s: RX loopback packets:\n", dev->name);
985
986 for (x = 0; x < numbuffs; x++) {
987 printk(KERN_DEBUG "%s: Packet %d:\n", dev->name, x);
988 skb = lp->rx_skbuff[x];
989 for (i = 0; i < size; i++) {
990 printk("%02x ", *(skb->data + i));
991 }
992 printk("\n");
993 }
994 }
995
996 x = 0;
997 rc = 0;
998 while (x < numbuffs && !rc) {
999 skb = lp->rx_skbuff[x];
1000 packet = lp->tx_skbuff[x]->data;
1001 for (i = 0; i < size; i++) {
1002 if (*(skb->data + i) != packet[i]) {
1003 if (netif_msg_hw(lp))
1004 printk(KERN_DEBUG
1005 "%s: Error in compare! %2x - %02x %02x\n",
1006 dev->name, i, *(skb->data + i),
1007 packet[i]);
1008 rc = 1;
1009 break;
1010 }
1011 }
1012 x++;
1013 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001014
1015 clean_up:
Don Fryac5bfe42006-06-29 13:55:27 -07001016 *data1 = rc;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001017 pcnet32_purge_tx_ring(dev);
Don Fryac5bfe42006-06-29 13:55:27 -07001018
1019 x = a->read_csr(ioaddr, CSR15);
1020 a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001021
1022 x = a->read_bcr(ioaddr, 32); /* reset internal loopback */
Don Fryac5bfe42006-06-29 13:55:27 -07001023 a->write_bcr(ioaddr, 32, (x & ~0x0002));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001024
Don Fry7de745e2006-09-13 10:16:53 -07001025#ifdef CONFIG_PCNET32_NAPI
1026 if (netif_running(dev)) {
1027 pcnet32_netif_start(dev);
1028 pcnet32_restart(dev, CSR0_NORMAL);
1029 } else {
1030 pcnet32_purge_rx_ring(dev);
1031 lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */
1032 }
1033 spin_unlock_irqrestore(&lp->lock, flags);
1034#else
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001035 if (netif_running(dev)) {
Don Fryac5bfe42006-06-29 13:55:27 -07001036 spin_unlock_irqrestore(&lp->lock, flags);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001037 pcnet32_open(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 } else {
Don Fryac5bfe42006-06-29 13:55:27 -07001039 pcnet32_purge_rx_ring(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001040 lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */
Don Fryac5bfe42006-06-29 13:55:27 -07001041 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 }
Don Fry7de745e2006-09-13 10:16:53 -07001043#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001045 return (rc);
1046} /* end pcnet32_loopback_test */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047
1048static void pcnet32_led_blink_callback(struct net_device *dev)
1049{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001050 struct pcnet32_private *lp = dev->priv;
1051 struct pcnet32_access *a = &lp->a;
1052 ulong ioaddr = dev->base_addr;
1053 unsigned long flags;
1054 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001056 spin_lock_irqsave(&lp->lock, flags);
1057 for (i = 4; i < 8; i++) {
1058 a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000);
1059 }
1060 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001062 mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063}
1064
1065static int pcnet32_phys_id(struct net_device *dev, u32 data)
1066{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001067 struct pcnet32_private *lp = dev->priv;
1068 struct pcnet32_access *a = &lp->a;
1069 ulong ioaddr = dev->base_addr;
1070 unsigned long flags;
1071 int i, regs[4];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001073 if (!lp->blink_timer.function) {
1074 init_timer(&lp->blink_timer);
1075 lp->blink_timer.function = (void *)pcnet32_led_blink_callback;
1076 lp->blink_timer.data = (unsigned long)dev;
1077 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001079 /* Save the current value of the bcrs */
1080 spin_lock_irqsave(&lp->lock, flags);
1081 for (i = 4; i < 8; i++) {
1082 regs[i - 4] = a->read_bcr(ioaddr, i);
1083 }
1084 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001086 mod_timer(&lp->blink_timer, jiffies);
1087 set_current_state(TASK_INTERRUPTIBLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001089 if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)))
1090 data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001092 msleep_interruptible(data * 1000);
1093 del_timer_sync(&lp->blink_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001095 /* Restore the original value of the bcrs */
1096 spin_lock_irqsave(&lp->lock, flags);
1097 for (i = 4; i < 8; i++) {
1098 a->write_bcr(ioaddr, i, regs[i - 4]);
1099 }
1100 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001102 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103}
1104
Don Frydf27f4a2006-06-29 13:55:02 -07001105/*
1106 * lp->lock must be held.
1107 */
1108static int pcnet32_suspend(struct net_device *dev, unsigned long *flags,
1109 int can_sleep)
1110{
1111 int csr5;
1112 struct pcnet32_private *lp = dev->priv;
1113 struct pcnet32_access *a = &lp->a;
1114 ulong ioaddr = dev->base_addr;
1115 int ticks;
1116
Don Fry8d916262006-08-22 10:22:37 -07001117 /* really old chips have to be stopped. */
1118 if (lp->chip_version < PCNET32_79C970A)
1119 return 0;
1120
Don Frydf27f4a2006-06-29 13:55:02 -07001121 /* set SUSPEND (SPND) - CSR5 bit 0 */
1122 csr5 = a->read_csr(ioaddr, CSR5);
1123 a->write_csr(ioaddr, CSR5, csr5 | CSR5_SUSPEND);
1124
1125 /* poll waiting for bit to be set */
1126 ticks = 0;
1127 while (!(a->read_csr(ioaddr, CSR5) & CSR5_SUSPEND)) {
1128 spin_unlock_irqrestore(&lp->lock, *flags);
1129 if (can_sleep)
1130 msleep(1);
1131 else
1132 mdelay(1);
1133 spin_lock_irqsave(&lp->lock, *flags);
1134 ticks++;
1135 if (ticks > 200) {
1136 if (netif_msg_hw(lp))
1137 printk(KERN_DEBUG
1138 "%s: Error getting into suspend!\n",
1139 dev->name);
1140 return 0;
1141 }
1142 }
1143 return 1;
1144}
1145
Don Fry3904c322006-09-13 10:16:38 -07001146/*
1147 * process one receive descriptor entry
1148 */
Don Fry9691edd2006-09-13 10:16:21 -07001149
Don Fry3904c322006-09-13 10:16:38 -07001150static void pcnet32_rx_entry(struct net_device *dev,
1151 struct pcnet32_private *lp,
1152 struct pcnet32_rx_head *rxp,
1153 int entry)
1154{
1155 int status = (short)le16_to_cpu(rxp->status) >> 8;
1156 int rx_in_place = 0;
1157 struct sk_buff *skb;
1158 short pkt_len;
1159
1160 if (status != 0x03) { /* There was an error. */
1161 /*
1162 * There is a tricky error noted by John Murphy,
1163 * <murf@perftech.com> to Russ Nelson: Even with full-sized
1164 * buffers it's possible for a jabber packet to use two
1165 * buffers, with only the last correctly noting the error.
1166 */
1167 if (status & 0x01) /* Only count a general error at the */
1168 lp->stats.rx_errors++; /* end of a packet. */
1169 if (status & 0x20)
1170 lp->stats.rx_frame_errors++;
1171 if (status & 0x10)
1172 lp->stats.rx_over_errors++;
1173 if (status & 0x08)
1174 lp->stats.rx_crc_errors++;
1175 if (status & 0x04)
1176 lp->stats.rx_fifo_errors++;
1177 return;
1178 }
1179
1180 pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4;
1181
1182 /* Discard oversize frames. */
1183 if (unlikely(pkt_len > PKT_BUF_SZ - 2)) {
1184 if (netif_msg_drv(lp))
1185 printk(KERN_ERR "%s: Impossible packet size %d!\n",
1186 dev->name, pkt_len);
1187 lp->stats.rx_errors++;
1188 return;
1189 }
1190 if (pkt_len < 60) {
1191 if (netif_msg_rx_err(lp))
1192 printk(KERN_ERR "%s: Runt packet!\n", dev->name);
1193 lp->stats.rx_errors++;
1194 return;
1195 }
1196
1197 if (pkt_len > rx_copybreak) {
1198 struct sk_buff *newskb;
1199
1200 if ((newskb = dev_alloc_skb(PKT_BUF_SZ))) {
1201 skb_reserve(newskb, 2);
1202 skb = lp->rx_skbuff[entry];
1203 pci_unmap_single(lp->pci_dev,
1204 lp->rx_dma_addr[entry],
1205 PKT_BUF_SZ - 2,
1206 PCI_DMA_FROMDEVICE);
1207 skb_put(skb, pkt_len);
1208 lp->rx_skbuff[entry] = newskb;
Don Fry3904c322006-09-13 10:16:38 -07001209 lp->rx_dma_addr[entry] =
1210 pci_map_single(lp->pci_dev,
1211 newskb->data,
1212 PKT_BUF_SZ - 2,
1213 PCI_DMA_FROMDEVICE);
1214 rxp->base = le32_to_cpu(lp->rx_dma_addr[entry]);
1215 rx_in_place = 1;
1216 } else
1217 skb = NULL;
1218 } else {
1219 skb = dev_alloc_skb(pkt_len + 2);
1220 }
1221
1222 if (skb == NULL) {
1223 if (netif_msg_drv(lp))
1224 printk(KERN_ERR
1225 "%s: Memory squeeze, dropping packet.\n",
1226 dev->name);
1227 lp->stats.rx_dropped++;
1228 return;
1229 }
1230 skb->dev = dev;
1231 if (!rx_in_place) {
1232 skb_reserve(skb, 2); /* 16 byte align */
1233 skb_put(skb, pkt_len); /* Make room */
1234 pci_dma_sync_single_for_cpu(lp->pci_dev,
1235 lp->rx_dma_addr[entry],
Don Fryb2cbbd82007-03-05 18:13:09 -08001236 pkt_len,
Don Fry3904c322006-09-13 10:16:38 -07001237 PCI_DMA_FROMDEVICE);
1238 eth_copy_and_sum(skb,
1239 (unsigned char *)(lp->rx_skbuff[entry]->data),
1240 pkt_len, 0);
1241 pci_dma_sync_single_for_device(lp->pci_dev,
1242 lp->rx_dma_addr[entry],
Don Fryb2cbbd82007-03-05 18:13:09 -08001243 pkt_len,
Don Fry3904c322006-09-13 10:16:38 -07001244 PCI_DMA_FROMDEVICE);
1245 }
1246 lp->stats.rx_bytes += skb->len;
1247 skb->protocol = eth_type_trans(skb, dev);
Don Fry7de745e2006-09-13 10:16:53 -07001248#ifdef CONFIG_PCNET32_NAPI
1249 netif_receive_skb(skb);
1250#else
Don Fry3904c322006-09-13 10:16:38 -07001251 netif_rx(skb);
Don Fry7de745e2006-09-13 10:16:53 -07001252#endif
Don Fry3904c322006-09-13 10:16:38 -07001253 dev->last_rx = jiffies;
1254 lp->stats.rx_packets++;
1255 return;
1256}
1257
Don Fry7de745e2006-09-13 10:16:53 -07001258static int pcnet32_rx(struct net_device *dev, int quota)
Don Fry9691edd2006-09-13 10:16:21 -07001259{
1260 struct pcnet32_private *lp = dev->priv;
1261 int entry = lp->cur_rx & lp->rx_mod_mask;
Don Fry3904c322006-09-13 10:16:38 -07001262 struct pcnet32_rx_head *rxp = &lp->rx_ring[entry];
1263 int npackets = 0;
Don Fry9691edd2006-09-13 10:16:21 -07001264
1265 /* If we own the next entry, it's a new packet. Send it up. */
Don Fry7de745e2006-09-13 10:16:53 -07001266 while (quota > npackets && (short)le16_to_cpu(rxp->status) >= 0) {
Don Fry3904c322006-09-13 10:16:38 -07001267 pcnet32_rx_entry(dev, lp, rxp, entry);
1268 npackets += 1;
Don Fry9691edd2006-09-13 10:16:21 -07001269 /*
Don Fry3904c322006-09-13 10:16:38 -07001270 * The docs say that the buffer length isn't touched, but Andrew
1271 * Boyd of QNX reports that some revs of the 79C965 clear it.
Don Fry9691edd2006-09-13 10:16:21 -07001272 */
Don Fry3904c322006-09-13 10:16:38 -07001273 rxp->buf_length = le16_to_cpu(2 - PKT_BUF_SZ);
1274 wmb(); /* Make sure owner changes after others are visible */
1275 rxp->status = le16_to_cpu(0x8000);
Don Fry9691edd2006-09-13 10:16:21 -07001276 entry = (++lp->cur_rx) & lp->rx_mod_mask;
Don Fry3904c322006-09-13 10:16:38 -07001277 rxp = &lp->rx_ring[entry];
Don Fry9691edd2006-09-13 10:16:21 -07001278 }
1279
Don Fry7de745e2006-09-13 10:16:53 -07001280 return npackets;
Don Fry9691edd2006-09-13 10:16:21 -07001281}
1282
Don Fry7de745e2006-09-13 10:16:53 -07001283static int pcnet32_tx(struct net_device *dev)
Don Fry9691edd2006-09-13 10:16:21 -07001284{
1285 struct pcnet32_private *lp = dev->priv;
1286 unsigned int dirty_tx = lp->dirty_tx;
1287 int delta;
1288 int must_restart = 0;
1289
1290 while (dirty_tx != lp->cur_tx) {
1291 int entry = dirty_tx & lp->tx_mod_mask;
1292 int status = (short)le16_to_cpu(lp->tx_ring[entry].status);
1293
1294 if (status < 0)
1295 break; /* It still hasn't been Txed */
1296
1297 lp->tx_ring[entry].base = 0;
1298
1299 if (status & 0x4000) {
Don Fry3904c322006-09-13 10:16:38 -07001300 /* There was a major error, log it. */
Don Fry9691edd2006-09-13 10:16:21 -07001301 int err_status = le32_to_cpu(lp->tx_ring[entry].misc);
1302 lp->stats.tx_errors++;
1303 if (netif_msg_tx_err(lp))
1304 printk(KERN_ERR
1305 "%s: Tx error status=%04x err_status=%08x\n",
1306 dev->name, status,
1307 err_status);
1308 if (err_status & 0x04000000)
1309 lp->stats.tx_aborted_errors++;
1310 if (err_status & 0x08000000)
1311 lp->stats.tx_carrier_errors++;
1312 if (err_status & 0x10000000)
1313 lp->stats.tx_window_errors++;
1314#ifndef DO_DXSUFLO
1315 if (err_status & 0x40000000) {
1316 lp->stats.tx_fifo_errors++;
1317 /* Ackk! On FIFO errors the Tx unit is turned off! */
1318 /* Remove this verbosity later! */
1319 if (netif_msg_tx_err(lp))
1320 printk(KERN_ERR
Don Fry7de745e2006-09-13 10:16:53 -07001321 "%s: Tx FIFO error!\n",
1322 dev->name);
Don Fry9691edd2006-09-13 10:16:21 -07001323 must_restart = 1;
1324 }
1325#else
1326 if (err_status & 0x40000000) {
1327 lp->stats.tx_fifo_errors++;
1328 if (!lp->dxsuflo) { /* If controller doesn't recover ... */
1329 /* Ackk! On FIFO errors the Tx unit is turned off! */
1330 /* Remove this verbosity later! */
Don Fry3904c322006-09-13 10:16:38 -07001331 if (netif_msg_tx_err(lp))
Don Fry9691edd2006-09-13 10:16:21 -07001332 printk(KERN_ERR
Don Fry7de745e2006-09-13 10:16:53 -07001333 "%s: Tx FIFO error!\n",
1334 dev->name);
Don Fry9691edd2006-09-13 10:16:21 -07001335 must_restart = 1;
1336 }
1337 }
1338#endif
1339 } else {
1340 if (status & 0x1800)
1341 lp->stats.collisions++;
1342 lp->stats.tx_packets++;
1343 }
1344
1345 /* We must free the original skb */
1346 if (lp->tx_skbuff[entry]) {
1347 pci_unmap_single(lp->pci_dev,
1348 lp->tx_dma_addr[entry],
1349 lp->tx_skbuff[entry]->
1350 len, PCI_DMA_TODEVICE);
Don Fry3904c322006-09-13 10:16:38 -07001351 dev_kfree_skb_any(lp->tx_skbuff[entry]);
Don Fry9691edd2006-09-13 10:16:21 -07001352 lp->tx_skbuff[entry] = NULL;
1353 lp->tx_dma_addr[entry] = 0;
1354 }
1355 dirty_tx++;
1356 }
1357
Don Fry3904c322006-09-13 10:16:38 -07001358 delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size);
Don Fry9691edd2006-09-13 10:16:21 -07001359 if (delta > lp->tx_ring_size) {
1360 if (netif_msg_drv(lp))
1361 printk(KERN_ERR
1362 "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
1363 dev->name, dirty_tx, lp->cur_tx,
1364 lp->tx_full);
1365 dirty_tx += lp->tx_ring_size;
1366 delta -= lp->tx_ring_size;
1367 }
1368
1369 if (lp->tx_full &&
1370 netif_queue_stopped(dev) &&
1371 delta < lp->tx_ring_size - 2) {
1372 /* The ring is no longer full, clear tbusy. */
1373 lp->tx_full = 0;
1374 netif_wake_queue(dev);
1375 }
1376 lp->dirty_tx = dirty_tx;
1377
1378 return must_restart;
1379}
1380
Don Fry7de745e2006-09-13 10:16:53 -07001381#ifdef CONFIG_PCNET32_NAPI
1382static int pcnet32_poll(struct net_device *dev, int *budget)
1383{
1384 struct pcnet32_private *lp = dev->priv;
1385 int quota = min(dev->quota, *budget);
1386 unsigned long ioaddr = dev->base_addr;
1387 unsigned long flags;
1388 u16 val;
1389
1390 quota = pcnet32_rx(dev, quota);
1391
1392 spin_lock_irqsave(&lp->lock, flags);
1393 if (pcnet32_tx(dev)) {
1394 /* reset the chip to clear the error condition, then restart */
1395 lp->a.reset(ioaddr);
1396 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
1397 pcnet32_restart(dev, CSR0_START);
1398 netif_wake_queue(dev);
1399 }
1400 spin_unlock_irqrestore(&lp->lock, flags);
1401
1402 *budget -= quota;
1403 dev->quota -= quota;
1404
1405 if (dev->quota == 0) {
1406 return 1;
1407 }
1408
1409 netif_rx_complete(dev);
1410
1411 spin_lock_irqsave(&lp->lock, flags);
1412
1413 /* clear interrupt masks */
1414 val = lp->a.read_csr(ioaddr, CSR3);
1415 val &= 0x00ff;
1416 lp->a.write_csr(ioaddr, CSR3, val);
1417
1418 /* Set interrupt enable. */
1419 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
1420 mmiowb();
1421 spin_unlock_irqrestore(&lp->lock, flags);
1422
1423 return 0;
1424}
1425#endif
1426
Don Fryac62ef02006-03-20 15:26:03 -08001427#define PCNET32_REGS_PER_PHY 32
1428#define PCNET32_MAX_PHYS 32
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429static int pcnet32_get_regs_len(struct net_device *dev)
1430{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001431 struct pcnet32_private *lp = dev->priv;
1432 int j = lp->phycount * PCNET32_REGS_PER_PHY;
Don Fryac62ef02006-03-20 15:26:03 -08001433
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001434 return ((PCNET32_NUM_REGS + j) * sizeof(u16));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435}
1436
1437static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001438 void *ptr)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001440 int i, csr0;
1441 u16 *buff = ptr;
1442 struct pcnet32_private *lp = dev->priv;
1443 struct pcnet32_access *a = &lp->a;
1444 ulong ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001445 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001447 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448
Don Frydf27f4a2006-06-29 13:55:02 -07001449 csr0 = a->read_csr(ioaddr, CSR0);
1450 if (!(csr0 & CSR0_STOP)) /* If not stopped */
1451 pcnet32_suspend(dev, &flags, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001453 /* read address PROM */
1454 for (i = 0; i < 16; i += 2)
1455 *buff++ = inw(ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001457 /* read control and status registers */
1458 for (i = 0; i < 90; i++) {
1459 *buff++ = a->read_csr(ioaddr, i);
1460 }
1461
1462 *buff++ = a->read_csr(ioaddr, 112);
1463 *buff++ = a->read_csr(ioaddr, 114);
1464
1465 /* read bus configuration registers */
1466 for (i = 0; i < 30; i++) {
1467 *buff++ = a->read_bcr(ioaddr, i);
1468 }
1469 *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */
1470 for (i = 31; i < 36; i++) {
1471 *buff++ = a->read_bcr(ioaddr, i);
1472 }
1473
1474 /* read mii phy registers */
1475 if (lp->mii) {
1476 int j;
1477 for (j = 0; j < PCNET32_MAX_PHYS; j++) {
1478 if (lp->phymask & (1 << j)) {
1479 for (i = 0; i < PCNET32_REGS_PER_PHY; i++) {
1480 lp->a.write_bcr(ioaddr, 33,
1481 (j << 5) | i);
1482 *buff++ = lp->a.read_bcr(ioaddr, 34);
1483 }
1484 }
1485 }
1486 }
1487
Don Frydf27f4a2006-06-29 13:55:02 -07001488 if (!(csr0 & CSR0_STOP)) { /* If not stopped */
1489 int csr5;
1490
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001491 /* clear SUSPEND (SPND) - CSR5 bit 0 */
Don Frydf27f4a2006-06-29 13:55:02 -07001492 csr5 = a->read_csr(ioaddr, CSR5);
1493 a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001494 }
1495
1496 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497}
1498
Jeff Garzik7282d492006-09-13 14:30:00 -04001499static const struct ethtool_ops pcnet32_ethtool_ops = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001500 .get_settings = pcnet32_get_settings,
1501 .set_settings = pcnet32_set_settings,
1502 .get_drvinfo = pcnet32_get_drvinfo,
1503 .get_msglevel = pcnet32_get_msglevel,
1504 .set_msglevel = pcnet32_set_msglevel,
1505 .nway_reset = pcnet32_nway_reset,
1506 .get_link = pcnet32_get_link,
1507 .get_ringparam = pcnet32_get_ringparam,
1508 .set_ringparam = pcnet32_set_ringparam,
1509 .get_tx_csum = ethtool_op_get_tx_csum,
1510 .get_sg = ethtool_op_get_sg,
1511 .get_tso = ethtool_op_get_tso,
1512 .get_strings = pcnet32_get_strings,
1513 .self_test_count = pcnet32_self_test_count,
1514 .self_test = pcnet32_ethtool_test,
1515 .phys_id = pcnet32_phys_id,
1516 .get_regs_len = pcnet32_get_regs_len,
1517 .get_regs = pcnet32_get_regs,
1518 .get_perm_addr = ethtool_op_get_perm_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519};
1520
1521/* only probes for non-PCI devices, the rest are handled by
1522 * pci_register_driver via pcnet32_probe_pci */
1523
Don Frydcaf9762006-06-29 13:52:29 -07001524static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001526 unsigned int *port, ioaddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001528 /* search for PCnet32 VLB cards at known addresses */
1529 for (port = pcnet32_portlist; (ioaddr = *port); port++) {
1530 if (request_region
1531 (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) {
1532 /* check if there is really a pcnet chip on that ioaddr */
1533 if ((inb(ioaddr + 14) == 0x57)
1534 && (inb(ioaddr + 15) == 0x57)) {
1535 pcnet32_probe1(ioaddr, 0, NULL);
1536 } else {
1537 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1538 }
1539 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001541}
1542
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543static int __devinit
1544pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent)
1545{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001546 unsigned long ioaddr;
1547 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001549 err = pci_enable_device(pdev);
1550 if (err < 0) {
1551 if (pcnet32_debug & NETIF_MSG_PROBE)
1552 printk(KERN_ERR PFX
1553 "failed to enable device -- err=%d\n", err);
1554 return err;
1555 }
1556 pci_set_master(pdev);
1557
1558 ioaddr = pci_resource_start(pdev, 0);
1559 if (!ioaddr) {
1560 if (pcnet32_debug & NETIF_MSG_PROBE)
1561 printk(KERN_ERR PFX
1562 "card has no PCI IO resources, aborting\n");
1563 return -ENODEV;
1564 }
1565
1566 if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) {
1567 if (pcnet32_debug & NETIF_MSG_PROBE)
1568 printk(KERN_ERR PFX
1569 "architecture does not support 32bit PCI busmaster DMA\n");
1570 return -ENODEV;
1571 }
1572 if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") ==
1573 NULL) {
1574 if (pcnet32_debug & NETIF_MSG_PROBE)
1575 printk(KERN_ERR PFX
1576 "io address range already allocated\n");
1577 return -EBUSY;
1578 }
1579
1580 err = pcnet32_probe1(ioaddr, 1, pdev);
1581 if (err < 0) {
1582 pci_disable_device(pdev);
1583 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585}
1586
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587/* pcnet32_probe1
1588 * Called from both pcnet32_probe_vlbus and pcnet_probe_pci.
1589 * pdev will be NULL when called from pcnet32_probe_vlbus.
1590 */
1591static int __devinit
1592pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
1593{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001594 struct pcnet32_private *lp;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001595 int i, media;
1596 int fdx, mii, fset, dxsuflo;
1597 int chip_version;
1598 char *chipname;
1599 struct net_device *dev;
1600 struct pcnet32_access *a = NULL;
1601 u8 promaddr[6];
1602 int ret = -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001604 /* reset the chip */
1605 pcnet32_wio_reset(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001607 /* NOTE: 16-bit check is first, otherwise some older PCnet chips fail */
1608 if (pcnet32_wio_read_csr(ioaddr, 0) == 4 && pcnet32_wio_check(ioaddr)) {
1609 a = &pcnet32_wio;
1610 } else {
1611 pcnet32_dwio_reset(ioaddr);
1612 if (pcnet32_dwio_read_csr(ioaddr, 0) == 4
1613 && pcnet32_dwio_check(ioaddr)) {
1614 a = &pcnet32_dwio;
1615 } else
1616 goto err_release_region;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001619 chip_version =
1620 a->read_csr(ioaddr, 88) | (a->read_csr(ioaddr, 89) << 16);
1621 if ((pcnet32_debug & NETIF_MSG_PROBE) && (pcnet32_debug & NETIF_MSG_HW))
1622 printk(KERN_INFO " PCnet chip version is %#x.\n",
1623 chip_version);
1624 if ((chip_version & 0xfff) != 0x003) {
1625 if (pcnet32_debug & NETIF_MSG_PROBE)
1626 printk(KERN_INFO PFX "Unsupported chip version.\n");
1627 goto err_release_region;
1628 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001630 /* initialize variables */
1631 fdx = mii = fset = dxsuflo = 0;
1632 chip_version = (chip_version >> 12) & 0xffff;
1633
1634 switch (chip_version) {
1635 case 0x2420:
1636 chipname = "PCnet/PCI 79C970"; /* PCI */
1637 break;
1638 case 0x2430:
1639 if (shared)
1640 chipname = "PCnet/PCI 79C970"; /* 970 gives the wrong chip id back */
1641 else
1642 chipname = "PCnet/32 79C965"; /* 486/VL bus */
1643 break;
1644 case 0x2621:
1645 chipname = "PCnet/PCI II 79C970A"; /* PCI */
1646 fdx = 1;
1647 break;
1648 case 0x2623:
1649 chipname = "PCnet/FAST 79C971"; /* PCI */
1650 fdx = 1;
1651 mii = 1;
1652 fset = 1;
1653 break;
1654 case 0x2624:
1655 chipname = "PCnet/FAST+ 79C972"; /* PCI */
1656 fdx = 1;
1657 mii = 1;
1658 fset = 1;
1659 break;
1660 case 0x2625:
1661 chipname = "PCnet/FAST III 79C973"; /* PCI */
1662 fdx = 1;
1663 mii = 1;
1664 break;
1665 case 0x2626:
1666 chipname = "PCnet/Home 79C978"; /* PCI */
1667 fdx = 1;
1668 /*
1669 * This is based on specs published at www.amd.com. This section
1670 * assumes that a card with a 79C978 wants to go into standard
1671 * ethernet mode. The 79C978 can also go into 1Mb HomePNA mode,
1672 * and the module option homepna=1 can select this instead.
1673 */
1674 media = a->read_bcr(ioaddr, 49);
1675 media &= ~3; /* default to 10Mb ethernet */
1676 if (cards_found < MAX_UNITS && homepna[cards_found])
1677 media |= 1; /* switch to home wiring mode */
1678 if (pcnet32_debug & NETIF_MSG_PROBE)
1679 printk(KERN_DEBUG PFX "media set to %sMbit mode.\n",
1680 (media & 1) ? "1" : "10");
1681 a->write_bcr(ioaddr, 49, media);
1682 break;
1683 case 0x2627:
1684 chipname = "PCnet/FAST III 79C975"; /* PCI */
1685 fdx = 1;
1686 mii = 1;
1687 break;
1688 case 0x2628:
1689 chipname = "PCnet/PRO 79C976";
1690 fdx = 1;
1691 mii = 1;
1692 break;
1693 default:
1694 if (pcnet32_debug & NETIF_MSG_PROBE)
1695 printk(KERN_INFO PFX
1696 "PCnet version %#x, no PCnet32 chip.\n",
1697 chip_version);
1698 goto err_release_region;
1699 }
1700
1701 /*
1702 * On selected chips turn on the BCR18:NOUFLO bit. This stops transmit
1703 * starting until the packet is loaded. Strike one for reliability, lose
1704 * one for latency - although on PCI this isnt a big loss. Older chips
1705 * have FIFO's smaller than a packet, so you can't do this.
1706 * Turn on BCR18:BurstRdEn and BCR18:BurstWrEn.
1707 */
1708
1709 if (fset) {
1710 a->write_bcr(ioaddr, 18, (a->read_bcr(ioaddr, 18) | 0x0860));
1711 a->write_csr(ioaddr, 80,
1712 (a->read_csr(ioaddr, 80) & 0x0C00) | 0x0c00);
1713 dxsuflo = 1;
1714 }
1715
Don Fry6ecb7662007-03-06 10:45:23 -08001716 dev = alloc_etherdev(sizeof(*lp));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001717 if (!dev) {
1718 if (pcnet32_debug & NETIF_MSG_PROBE)
1719 printk(KERN_ERR PFX "Memory allocation failed.\n");
1720 ret = -ENOMEM;
1721 goto err_release_region;
1722 }
1723 SET_NETDEV_DEV(dev, &pdev->dev);
1724
1725 if (pcnet32_debug & NETIF_MSG_PROBE)
1726 printk(KERN_INFO PFX "%s at %#3lx,", chipname, ioaddr);
1727
1728 /* In most chips, after a chip reset, the ethernet address is read from the
1729 * station address PROM at the base address and programmed into the
1730 * "Physical Address Registers" CSR12-14.
1731 * As a precautionary measure, we read the PROM values and complain if
Linas Vepstasbc0e1fc2006-03-28 16:36:23 -06001732 * they disagree with the CSRs. If they miscompare, and the PROM addr
1733 * is valid, then the PROM addr is used.
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001734 */
1735 for (i = 0; i < 3; i++) {
1736 unsigned int val;
1737 val = a->read_csr(ioaddr, i + 12) & 0x0ffff;
1738 /* There may be endianness issues here. */
1739 dev->dev_addr[2 * i] = val & 0x0ff;
1740 dev->dev_addr[2 * i + 1] = (val >> 8) & 0x0ff;
1741 }
1742
1743 /* read PROM address and compare with CSR address */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744 for (i = 0; i < 6; i++)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001745 promaddr[i] = inb(ioaddr + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001747 if (memcmp(promaddr, dev->dev_addr, 6)
1748 || !is_valid_ether_addr(dev->dev_addr)) {
1749 if (is_valid_ether_addr(promaddr)) {
1750 if (pcnet32_debug & NETIF_MSG_PROBE) {
1751 printk(" warning: CSR address invalid,\n");
1752 printk(KERN_INFO
1753 " using instead PROM address of");
1754 }
1755 memcpy(dev->dev_addr, promaddr, 6);
1756 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001758 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001759
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001760 /* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
1761 if (!is_valid_ether_addr(dev->perm_addr))
1762 memset(dev->dev_addr, 0, sizeof(dev->dev_addr));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001764 if (pcnet32_debug & NETIF_MSG_PROBE) {
1765 for (i = 0; i < 6; i++)
1766 printk(" %2.2x", dev->dev_addr[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001768 /* Version 0x2623 and 0x2624 */
1769 if (((chip_version + 1) & 0xfffe) == 0x2624) {
1770 i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */
1771 printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i);
1772 switch (i >> 10) {
1773 case 0:
1774 printk(" 20 bytes,");
1775 break;
1776 case 1:
1777 printk(" 64 bytes,");
1778 break;
1779 case 2:
1780 printk(" 128 bytes,");
1781 break;
1782 case 3:
1783 printk("~220 bytes,");
1784 break;
1785 }
1786 i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */
1787 printk(" BCR18(%x):", i & 0xffff);
1788 if (i & (1 << 5))
1789 printk("BurstWrEn ");
1790 if (i & (1 << 6))
1791 printk("BurstRdEn ");
1792 if (i & (1 << 7))
1793 printk("DWordIO ");
1794 if (i & (1 << 11))
1795 printk("NoUFlow ");
1796 i = a->read_bcr(ioaddr, 25);
1797 printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8);
1798 i = a->read_bcr(ioaddr, 26);
1799 printk(" SRAM_BND=0x%04x,", i << 8);
1800 i = a->read_bcr(ioaddr, 27);
1801 if (i & (1 << 14))
1802 printk("LowLatRx");
1803 }
1804 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001806 dev->base_addr = ioaddr;
Don Fry6ecb7662007-03-06 10:45:23 -08001807 lp = dev->priv;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001808 /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */
Don Fry6ecb7662007-03-06 10:45:23 -08001809 if ((lp->init_block =
1810 pci_alloc_consistent(pdev, sizeof(*lp->init_block), &lp->init_dma_addr)) == NULL) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001811 if (pcnet32_debug & NETIF_MSG_PROBE)
1812 printk(KERN_ERR PFX
1813 "Consistent memory allocation failed.\n");
1814 ret = -ENOMEM;
1815 goto err_free_netdev;
1816 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001817 lp->pci_dev = pdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001819 spin_lock_init(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001821 SET_MODULE_OWNER(dev);
1822 SET_NETDEV_DEV(dev, &pdev->dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001823 lp->name = chipname;
1824 lp->shared_irq = shared;
1825 lp->tx_ring_size = TX_RING_SIZE; /* default tx ring size */
1826 lp->rx_ring_size = RX_RING_SIZE; /* default rx ring size */
1827 lp->tx_mod_mask = lp->tx_ring_size - 1;
1828 lp->rx_mod_mask = lp->rx_ring_size - 1;
1829 lp->tx_len_bits = (PCNET32_LOG_TX_BUFFERS << 12);
1830 lp->rx_len_bits = (PCNET32_LOG_RX_BUFFERS << 4);
1831 lp->mii_if.full_duplex = fdx;
1832 lp->mii_if.phy_id_mask = 0x1f;
1833 lp->mii_if.reg_num_mask = 0x1f;
1834 lp->dxsuflo = dxsuflo;
1835 lp->mii = mii;
Don Fry8d916262006-08-22 10:22:37 -07001836 lp->chip_version = chip_version;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001837 lp->msg_enable = pcnet32_debug;
1838 if ((cards_found >= MAX_UNITS)
1839 || (options[cards_found] > sizeof(options_mapping)))
1840 lp->options = PCNET32_PORT_ASEL;
1841 else
1842 lp->options = options_mapping[options[cards_found]];
1843 lp->mii_if.dev = dev;
1844 lp->mii_if.mdio_read = mdio_read;
1845 lp->mii_if.mdio_write = mdio_write;
1846
1847 if (fdx && !(lp->options & PCNET32_PORT_ASEL) &&
1848 ((cards_found >= MAX_UNITS) || full_duplex[cards_found]))
1849 lp->options |= PCNET32_PORT_FD;
1850
1851 if (!a) {
1852 if (pcnet32_debug & NETIF_MSG_PROBE)
1853 printk(KERN_ERR PFX "No access methods\n");
1854 ret = -ENODEV;
1855 goto err_free_consistent;
1856 }
1857 lp->a = *a;
1858
1859 /* prior to register_netdev, dev->name is not yet correct */
1860 if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) {
1861 ret = -ENOMEM;
1862 goto err_free_ring;
1863 }
1864 /* detect special T1/E1 WAN card by checking for MAC address */
1865 if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001866 && dev->dev_addr[2] == 0x75)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001867 lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001868
Don Fry6ecb7662007-03-06 10:45:23 -08001869 lp->init_block->mode = le16_to_cpu(0x0003); /* Disable Rx and Tx. */
1870 lp->init_block->tlen_rlen =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001871 le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits);
1872 for (i = 0; i < 6; i++)
Don Fry6ecb7662007-03-06 10:45:23 -08001873 lp->init_block->phys_addr[i] = dev->dev_addr[i];
1874 lp->init_block->filter[0] = 0x00000000;
1875 lp->init_block->filter[1] = 0x00000000;
1876 lp->init_block->rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr);
1877 lp->init_block->tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001878
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001879 /* switch pcnet32 to 32bit mode */
1880 a->write_bcr(ioaddr, 20, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881
Don Fry6ecb7662007-03-06 10:45:23 -08001882 a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
1883 a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001884
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001885 if (pdev) { /* use the IRQ provided by PCI */
1886 dev->irq = pdev->irq;
1887 if (pcnet32_debug & NETIF_MSG_PROBE)
1888 printk(" assigned IRQ %d.\n", dev->irq);
1889 } else {
1890 unsigned long irq_mask = probe_irq_on();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001892 /*
1893 * To auto-IRQ we enable the initialization-done and DMA error
1894 * interrupts. For ISA boards we get a DMA error, but VLB and PCI
1895 * boards will work.
1896 */
1897 /* Trigger an initialization just for the interrupt. */
Don Fryb368a3f2006-09-13 10:16:07 -07001898 a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001899 mdelay(1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001901 dev->irq = probe_irq_off(irq_mask);
1902 if (!dev->irq) {
1903 if (pcnet32_debug & NETIF_MSG_PROBE)
1904 printk(", failed to detect IRQ line.\n");
1905 ret = -ENODEV;
1906 goto err_free_ring;
1907 }
1908 if (pcnet32_debug & NETIF_MSG_PROBE)
1909 printk(", probed IRQ %d.\n", dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001912 /* Set the mii phy_id so that we can query the link state */
1913 if (lp->mii) {
1914 /* lp->phycount and lp->phymask are set to 0 by memset above */
Don Fryac62ef02006-03-20 15:26:03 -08001915
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001916 lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f;
1917 /* scan for PHYs */
1918 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
1919 unsigned short id1, id2;
Don Fryac62ef02006-03-20 15:26:03 -08001920
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001921 id1 = mdio_read(dev, i, MII_PHYSID1);
1922 if (id1 == 0xffff)
1923 continue;
1924 id2 = mdio_read(dev, i, MII_PHYSID2);
1925 if (id2 == 0xffff)
1926 continue;
1927 if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624)
1928 continue; /* 79C971 & 79C972 have phantom phy at id 31 */
1929 lp->phycount++;
1930 lp->phymask |= (1 << i);
1931 lp->mii_if.phy_id = i;
1932 if (pcnet32_debug & NETIF_MSG_PROBE)
1933 printk(KERN_INFO PFX
1934 "Found PHY %04x:%04x at address %d.\n",
1935 id1, id2, i);
1936 }
1937 lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5);
1938 if (lp->phycount > 1) {
1939 lp->options |= PCNET32_PORT_MII;
1940 }
Don Fryac62ef02006-03-20 15:26:03 -08001941 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001942
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001943 init_timer(&lp->watchdog_timer);
1944 lp->watchdog_timer.data = (unsigned long)dev;
1945 lp->watchdog_timer.function = (void *)&pcnet32_watchdog;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001946
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001947 /* The PCNET32-specific entries in the device structure. */
1948 dev->open = &pcnet32_open;
1949 dev->hard_start_xmit = &pcnet32_start_xmit;
1950 dev->stop = &pcnet32_close;
1951 dev->get_stats = &pcnet32_get_stats;
1952 dev->set_multicast_list = &pcnet32_set_multicast_list;
1953 dev->do_ioctl = &pcnet32_ioctl;
1954 dev->ethtool_ops = &pcnet32_ethtool_ops;
1955 dev->tx_timeout = pcnet32_tx_timeout;
1956 dev->watchdog_timeo = (5 * HZ);
Don Fry7de745e2006-09-13 10:16:53 -07001957 dev->weight = lp->rx_ring_size / 2;
1958#ifdef CONFIG_PCNET32_NAPI
1959 dev->poll = pcnet32_poll;
1960#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961
1962#ifdef CONFIG_NET_POLL_CONTROLLER
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001963 dev->poll_controller = pcnet32_poll_controller;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964#endif
1965
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001966 /* Fill in the generic fields of the device structure. */
1967 if (register_netdev(dev))
1968 goto err_free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001970 if (pdev) {
1971 pci_set_drvdata(pdev, dev);
1972 } else {
1973 lp->next = pcnet32_dev;
1974 pcnet32_dev = dev;
1975 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001977 if (pcnet32_debug & NETIF_MSG_PROBE)
1978 printk(KERN_INFO "%s: registered as %s\n", dev->name, lp->name);
1979 cards_found++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001981 /* enable LED writes */
1982 a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001984 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001986 err_free_ring:
1987 pcnet32_free_ring(dev);
1988 err_free_consistent:
Don Fry6ecb7662007-03-06 10:45:23 -08001989 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
1990 lp->init_block, lp->init_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05001991 err_free_netdev:
1992 free_netdev(dev);
1993 err_release_region:
1994 release_region(ioaddr, PCNET32_TOTAL_SIZE);
1995 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996}
1997
Don Frya88c8442005-11-01 12:04:33 -08001998/* if any allocation fails, caller must also call pcnet32_free_ring */
1999static int pcnet32_alloc_ring(struct net_device *dev, char *name)
Hubert WS Lineabf0412005-09-14 11:39:25 -07002000{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002001 struct pcnet32_private *lp = dev->priv;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002002
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002003 lp->tx_ring = pci_alloc_consistent(lp->pci_dev,
2004 sizeof(struct pcnet32_tx_head) *
2005 lp->tx_ring_size,
2006 &lp->tx_ring_dma_addr);
2007 if (lp->tx_ring == NULL) {
Don Fry12fa30f2006-06-29 13:53:48 -07002008 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002009 printk("\n" KERN_ERR PFX
2010 "%s: Consistent memory allocation failed.\n",
2011 name);
2012 return -ENOMEM;
2013 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002014
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002015 lp->rx_ring = pci_alloc_consistent(lp->pci_dev,
2016 sizeof(struct pcnet32_rx_head) *
2017 lp->rx_ring_size,
2018 &lp->rx_ring_dma_addr);
2019 if (lp->rx_ring == NULL) {
Don Fry12fa30f2006-06-29 13:53:48 -07002020 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002021 printk("\n" KERN_ERR PFX
2022 "%s: Consistent memory allocation failed.\n",
2023 name);
2024 return -ENOMEM;
2025 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002026
Don Fry12fa30f2006-06-29 13:53:48 -07002027 lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002028 GFP_ATOMIC);
2029 if (!lp->tx_dma_addr) {
Don Fry12fa30f2006-06-29 13:53:48 -07002030 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002031 printk("\n" KERN_ERR PFX
2032 "%s: Memory allocation failed.\n", name);
2033 return -ENOMEM;
2034 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002035
Don Fry12fa30f2006-06-29 13:53:48 -07002036 lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002037 GFP_ATOMIC);
2038 if (!lp->rx_dma_addr) {
Don Fry12fa30f2006-06-29 13:53:48 -07002039 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002040 printk("\n" KERN_ERR PFX
2041 "%s: Memory allocation failed.\n", name);
2042 return -ENOMEM;
2043 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002044
Don Fry12fa30f2006-06-29 13:53:48 -07002045 lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002046 GFP_ATOMIC);
2047 if (!lp->tx_skbuff) {
Don Fry12fa30f2006-06-29 13:53:48 -07002048 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002049 printk("\n" KERN_ERR PFX
2050 "%s: Memory allocation failed.\n", name);
2051 return -ENOMEM;
2052 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002053
Don Fry12fa30f2006-06-29 13:53:48 -07002054 lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *),
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002055 GFP_ATOMIC);
2056 if (!lp->rx_skbuff) {
Don Fry12fa30f2006-06-29 13:53:48 -07002057 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002058 printk("\n" KERN_ERR PFX
2059 "%s: Memory allocation failed.\n", name);
2060 return -ENOMEM;
2061 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002062
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002063 return 0;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002064}
2065
Hubert WS Lineabf0412005-09-14 11:39:25 -07002066static void pcnet32_free_ring(struct net_device *dev)
2067{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002068 struct pcnet32_private *lp = dev->priv;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002069
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002070 kfree(lp->tx_skbuff);
2071 lp->tx_skbuff = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002072
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002073 kfree(lp->rx_skbuff);
2074 lp->rx_skbuff = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002075
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002076 kfree(lp->tx_dma_addr);
2077 lp->tx_dma_addr = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002078
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002079 kfree(lp->rx_dma_addr);
2080 lp->rx_dma_addr = NULL;
Hubert WS Lineabf0412005-09-14 11:39:25 -07002081
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002082 if (lp->tx_ring) {
2083 pci_free_consistent(lp->pci_dev,
2084 sizeof(struct pcnet32_tx_head) *
2085 lp->tx_ring_size, lp->tx_ring,
2086 lp->tx_ring_dma_addr);
2087 lp->tx_ring = NULL;
2088 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002089
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002090 if (lp->rx_ring) {
2091 pci_free_consistent(lp->pci_dev,
2092 sizeof(struct pcnet32_rx_head) *
2093 lp->rx_ring_size, lp->rx_ring,
2094 lp->rx_ring_dma_addr);
2095 lp->rx_ring = NULL;
2096 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002097}
2098
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002099static int pcnet32_open(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002101 struct pcnet32_private *lp = dev->priv;
2102 unsigned long ioaddr = dev->base_addr;
2103 u16 val;
2104 int i;
2105 int rc;
2106 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002108 if (request_irq(dev->irq, &pcnet32_interrupt,
Thomas Gleixner1fb9df52006-07-01 19:29:39 -07002109 lp->shared_irq ? IRQF_SHARED : 0, dev->name,
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002110 (void *)dev)) {
2111 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002114 spin_lock_irqsave(&lp->lock, flags);
2115 /* Check for a valid station address */
2116 if (!is_valid_ether_addr(dev->dev_addr)) {
2117 rc = -EINVAL;
2118 goto err_free_irq;
2119 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002121 /* Reset the PCNET32 */
2122 lp->a.reset(ioaddr);
2123
2124 /* switch pcnet32 to 32bit mode */
2125 lp->a.write_bcr(ioaddr, 20, 2);
2126
2127 if (netif_msg_ifup(lp))
2128 printk(KERN_DEBUG
2129 "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n",
2130 dev->name, dev->irq, (u32) (lp->tx_ring_dma_addr),
2131 (u32) (lp->rx_ring_dma_addr),
Don Fry6ecb7662007-03-06 10:45:23 -08002132 (u32) (lp->init_dma_addr));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002133
2134 /* set/reset autoselect bit */
2135 val = lp->a.read_bcr(ioaddr, 2) & ~2;
2136 if (lp->options & PCNET32_PORT_ASEL)
2137 val |= 2;
2138 lp->a.write_bcr(ioaddr, 2, val);
2139
2140 /* handle full duplex setting */
2141 if (lp->mii_if.full_duplex) {
2142 val = lp->a.read_bcr(ioaddr, 9) & ~3;
2143 if (lp->options & PCNET32_PORT_FD) {
2144 val |= 1;
2145 if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI))
2146 val |= 2;
2147 } else if (lp->options & PCNET32_PORT_ASEL) {
2148 /* workaround of xSeries250, turn on for 79C975 only */
Don Fry8d916262006-08-22 10:22:37 -07002149 if (lp->chip_version == 0x2627)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002150 val |= 3;
2151 }
2152 lp->a.write_bcr(ioaddr, 9, val);
2153 }
2154
2155 /* set/reset GPSI bit in test register */
2156 val = lp->a.read_csr(ioaddr, 124) & ~0x10;
2157 if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI)
2158 val |= 0x10;
2159 lp->a.write_csr(ioaddr, 124, val);
2160
2161 /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */
2162 if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT &&
Don Fry2964bbd2005-11-01 12:50:57 -08002163 (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX ||
2164 lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) {
Don Fryac62ef02006-03-20 15:26:03 -08002165 if (lp->options & PCNET32_PORT_ASEL) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002166 lp->options = PCNET32_PORT_FD | PCNET32_PORT_100;
2167 if (netif_msg_link(lp))
2168 printk(KERN_DEBUG
2169 "%s: Setting 100Mb-Full Duplex.\n",
2170 dev->name);
Don Fryac62ef02006-03-20 15:26:03 -08002171 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002172 }
2173 if (lp->phycount < 2) {
2174 /*
2175 * 24 Jun 2004 according AMD, in order to change the PHY,
2176 * DANAS (or DISPM for 79C976) must be set; then select the speed,
2177 * duplex, and/or enable auto negotiation, and clear DANAS
2178 */
2179 if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) {
2180 lp->a.write_bcr(ioaddr, 32,
2181 lp->a.read_bcr(ioaddr, 32) | 0x0080);
2182 /* disable Auto Negotiation, set 10Mpbs, HD */
2183 val = lp->a.read_bcr(ioaddr, 32) & ~0xb8;
2184 if (lp->options & PCNET32_PORT_FD)
2185 val |= 0x10;
2186 if (lp->options & PCNET32_PORT_100)
2187 val |= 0x08;
2188 lp->a.write_bcr(ioaddr, 32, val);
2189 } else {
2190 if (lp->options & PCNET32_PORT_ASEL) {
2191 lp->a.write_bcr(ioaddr, 32,
2192 lp->a.read_bcr(ioaddr,
2193 32) | 0x0080);
2194 /* enable auto negotiate, setup, disable fd */
2195 val = lp->a.read_bcr(ioaddr, 32) & ~0x98;
2196 val |= 0x20;
2197 lp->a.write_bcr(ioaddr, 32, val);
2198 }
2199 }
2200 } else {
2201 int first_phy = -1;
2202 u16 bmcr;
2203 u32 bcr9;
2204 struct ethtool_cmd ecmd;
2205
2206 /*
2207 * There is really no good other way to handle multiple PHYs
2208 * other than turning off all automatics
2209 */
2210 val = lp->a.read_bcr(ioaddr, 2);
2211 lp->a.write_bcr(ioaddr, 2, val & ~2);
2212 val = lp->a.read_bcr(ioaddr, 32);
2213 lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */
2214
2215 if (!(lp->options & PCNET32_PORT_ASEL)) {
2216 /* setup ecmd */
2217 ecmd.port = PORT_MII;
2218 ecmd.transceiver = XCVR_INTERNAL;
2219 ecmd.autoneg = AUTONEG_DISABLE;
2220 ecmd.speed =
2221 lp->
2222 options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10;
2223 bcr9 = lp->a.read_bcr(ioaddr, 9);
2224
2225 if (lp->options & PCNET32_PORT_FD) {
2226 ecmd.duplex = DUPLEX_FULL;
2227 bcr9 |= (1 << 0);
2228 } else {
2229 ecmd.duplex = DUPLEX_HALF;
2230 bcr9 |= ~(1 << 0);
2231 }
2232 lp->a.write_bcr(ioaddr, 9, bcr9);
2233 }
2234
2235 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2236 if (lp->phymask & (1 << i)) {
2237 /* isolate all but the first PHY */
2238 bmcr = mdio_read(dev, i, MII_BMCR);
2239 if (first_phy == -1) {
2240 first_phy = i;
2241 mdio_write(dev, i, MII_BMCR,
2242 bmcr & ~BMCR_ISOLATE);
2243 } else {
2244 mdio_write(dev, i, MII_BMCR,
2245 bmcr | BMCR_ISOLATE);
2246 }
2247 /* use mii_ethtool_sset to setup PHY */
2248 lp->mii_if.phy_id = i;
2249 ecmd.phy_address = i;
2250 if (lp->options & PCNET32_PORT_ASEL) {
2251 mii_ethtool_gset(&lp->mii_if, &ecmd);
2252 ecmd.autoneg = AUTONEG_ENABLE;
2253 }
2254 mii_ethtool_sset(&lp->mii_if, &ecmd);
2255 }
2256 }
2257 lp->mii_if.phy_id = first_phy;
2258 if (netif_msg_link(lp))
2259 printk(KERN_INFO "%s: Using PHY number %d.\n",
2260 dev->name, first_phy);
2261 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262
2263#ifdef DO_DXSUFLO
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002264 if (lp->dxsuflo) { /* Disable transmit stop on underflow */
Don Fryb368a3f2006-09-13 10:16:07 -07002265 val = lp->a.read_csr(ioaddr, CSR3);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002266 val |= 0x40;
Don Fryb368a3f2006-09-13 10:16:07 -07002267 lp->a.write_csr(ioaddr, CSR3, val);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002268 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269#endif
2270
Don Fry6ecb7662007-03-06 10:45:23 -08002271 lp->init_block->mode =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002272 le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7);
2273 pcnet32_load_multicast(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002275 if (pcnet32_init_ring(dev)) {
2276 rc = -ENOMEM;
2277 goto err_free_ring;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002278 }
Hubert WS Lineabf0412005-09-14 11:39:25 -07002279
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002280 /* Re-initialize the PCNET32, and start it when done. */
Don Fry6ecb7662007-03-06 10:45:23 -08002281 lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff));
2282 lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16));
Hubert WS Lineabf0412005-09-14 11:39:25 -07002283
Don Fryb368a3f2006-09-13 10:16:07 -07002284 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
2285 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002287 netif_start_queue(dev);
2288
Don Fry8d916262006-08-22 10:22:37 -07002289 if (lp->chip_version >= PCNET32_79C970A) {
2290 /* Print the link status and start the watchdog */
2291 pcnet32_check_media(dev, 1);
2292 mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT);
2293 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002294
2295 i = 0;
2296 while (i++ < 100)
Don Fryb368a3f2006-09-13 10:16:07 -07002297 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002298 break;
2299 /*
2300 * We used to clear the InitDone bit, 0x0100, here but Mark Stockton
2301 * reports that doing so triggers a bug in the '974.
2302 */
Don Fryb368a3f2006-09-13 10:16:07 -07002303 lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002304
2305 if (netif_msg_ifup(lp))
2306 printk(KERN_DEBUG
2307 "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n",
2308 dev->name, i,
Don Fry6ecb7662007-03-06 10:45:23 -08002309 (u32) (lp->init_dma_addr),
Don Fryb368a3f2006-09-13 10:16:07 -07002310 lp->a.read_csr(ioaddr, CSR0));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002311
2312 spin_unlock_irqrestore(&lp->lock, flags);
2313
2314 return 0; /* Always succeed */
2315
2316 err_free_ring:
2317 /* free any allocated skbuffs */
Don Fryac5bfe42006-06-29 13:55:27 -07002318 pcnet32_purge_rx_ring(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002319
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002320 /*
2321 * Switch back to 16bit mode to avoid problems with dumb
2322 * DOS packet driver after a warm reboot
2323 */
2324 lp->a.write_bcr(ioaddr, 20, 4);
2325
2326 err_free_irq:
2327 spin_unlock_irqrestore(&lp->lock, flags);
2328 free_irq(dev->irq, dev);
2329 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002330}
2331
2332/*
2333 * The LANCE has been halted for one reason or another (busmaster memory
2334 * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure,
2335 * etc.). Modern LANCE variants always reload their ring-buffer
2336 * configuration when restarted, so we must reinitialize our ring
2337 * context before restarting. As part of this reinitialization,
2338 * find all packets still on the Tx ring and pretend that they had been
2339 * sent (in effect, drop the packets on the floor) - the higher-level
2340 * protocols will time out and retransmit. It'd be better to shuffle
2341 * these skbs to a temp list and then actually re-Tx them after
2342 * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com
2343 */
2344
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002345static void pcnet32_purge_tx_ring(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002347 struct pcnet32_private *lp = dev->priv;
2348 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002349
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002350 for (i = 0; i < lp->tx_ring_size; i++) {
2351 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2352 wmb(); /* Make sure adapter sees owner change */
2353 if (lp->tx_skbuff[i]) {
2354 pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i],
2355 lp->tx_skbuff[i]->len,
2356 PCI_DMA_TODEVICE);
2357 dev_kfree_skb_any(lp->tx_skbuff[i]);
2358 }
2359 lp->tx_skbuff[i] = NULL;
2360 lp->tx_dma_addr[i] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002362}
2363
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364/* Initialize the PCNET32 Rx and Tx rings. */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002365static int pcnet32_init_ring(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002366{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002367 struct pcnet32_private *lp = dev->priv;
2368 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002369
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002370 lp->tx_full = 0;
2371 lp->cur_rx = lp->cur_tx = 0;
2372 lp->dirty_rx = lp->dirty_tx = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002374 for (i = 0; i < lp->rx_ring_size; i++) {
2375 struct sk_buff *rx_skbuff = lp->rx_skbuff[i];
2376 if (rx_skbuff == NULL) {
2377 if (!
2378 (rx_skbuff = lp->rx_skbuff[i] =
2379 dev_alloc_skb(PKT_BUF_SZ))) {
2380 /* there is not much, we can do at this point */
Don Fryb368a3f2006-09-13 10:16:07 -07002381 if (netif_msg_drv(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002382 printk(KERN_ERR
2383 "%s: pcnet32_init_ring dev_alloc_skb failed.\n",
2384 dev->name);
2385 return -1;
2386 }
2387 skb_reserve(rx_skbuff, 2);
2388 }
2389
2390 rmb();
2391 if (lp->rx_dma_addr[i] == 0)
2392 lp->rx_dma_addr[i] =
2393 pci_map_single(lp->pci_dev, rx_skbuff->data,
2394 PKT_BUF_SZ - 2, PCI_DMA_FROMDEVICE);
2395 lp->rx_ring[i].base = (u32) le32_to_cpu(lp->rx_dma_addr[i]);
2396 lp->rx_ring[i].buf_length = le16_to_cpu(2 - PKT_BUF_SZ);
2397 wmb(); /* Make sure owner changes after all others are visible */
2398 lp->rx_ring[i].status = le16_to_cpu(0x8000);
2399 }
2400 /* The Tx buffer address is filled in as needed, but we do need to clear
2401 * the upper ownership bit. */
2402 for (i = 0; i < lp->tx_ring_size; i++) {
2403 lp->tx_ring[i].status = 0; /* CPU owns buffer */
2404 wmb(); /* Make sure adapter sees owner change */
2405 lp->tx_ring[i].base = 0;
2406 lp->tx_dma_addr[i] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002407 }
2408
Don Fry6ecb7662007-03-06 10:45:23 -08002409 lp->init_block->tlen_rlen =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002410 le16_to_cpu(lp->tx_len_bits | lp->rx_len_bits);
2411 for (i = 0; i < 6; i++)
Don Fry6ecb7662007-03-06 10:45:23 -08002412 lp->init_block->phys_addr[i] = dev->dev_addr[i];
2413 lp->init_block->rx_ring = (u32) le32_to_cpu(lp->rx_ring_dma_addr);
2414 lp->init_block->tx_ring = (u32) le32_to_cpu(lp->tx_ring_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002415 wmb(); /* Make sure all changes are visible */
2416 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002417}
2418
2419/* the pcnet32 has been issued a stop or reset. Wait for the stop bit
2420 * then flush the pending transmit operations, re-initialize the ring,
2421 * and tell the chip to initialize.
2422 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002423static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002424{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002425 struct pcnet32_private *lp = dev->priv;
2426 unsigned long ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002428
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002429 /* wait for stop */
2430 for (i = 0; i < 100; i++)
Don Fryb368a3f2006-09-13 10:16:07 -07002431 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002432 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002433
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002434 if (i >= 100 && netif_msg_drv(lp))
2435 printk(KERN_ERR
2436 "%s: pcnet32_restart timed out waiting for stop.\n",
2437 dev->name);
2438
2439 pcnet32_purge_tx_ring(dev);
2440 if (pcnet32_init_ring(dev))
2441 return;
2442
2443 /* ReInit Ring */
Don Fryb368a3f2006-09-13 10:16:07 -07002444 lp->a.write_csr(ioaddr, CSR0, CSR0_INIT);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002445 i = 0;
2446 while (i++ < 1000)
Don Fryb368a3f2006-09-13 10:16:07 -07002447 if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON)
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002448 break;
2449
Don Fryb368a3f2006-09-13 10:16:07 -07002450 lp->a.write_csr(ioaddr, CSR0, csr0_bits);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002451}
2452
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002453static void pcnet32_tx_timeout(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002454{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002455 struct pcnet32_private *lp = dev->priv;
2456 unsigned long ioaddr = dev->base_addr, flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002457
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002458 spin_lock_irqsave(&lp->lock, flags);
2459 /* Transmitter timeout, serious problems. */
2460 if (pcnet32_debug & NETIF_MSG_DRV)
2461 printk(KERN_ERR
2462 "%s: transmit timed out, status %4.4x, resetting.\n",
Don Fryb368a3f2006-09-13 10:16:07 -07002463 dev->name, lp->a.read_csr(ioaddr, CSR0));
2464 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002465 lp->stats.tx_errors++;
2466 if (netif_msg_tx_err(lp)) {
2467 int i;
2468 printk(KERN_DEBUG
2469 " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.",
2470 lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "",
2471 lp->cur_rx);
2472 for (i = 0; i < lp->rx_ring_size; i++)
2473 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2474 le32_to_cpu(lp->rx_ring[i].base),
2475 (-le16_to_cpu(lp->rx_ring[i].buf_length)) &
2476 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length),
2477 le16_to_cpu(lp->rx_ring[i].status));
2478 for (i = 0; i < lp->tx_ring_size; i++)
2479 printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ",
2480 le32_to_cpu(lp->tx_ring[i].base),
2481 (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff,
2482 le32_to_cpu(lp->tx_ring[i].misc),
2483 le16_to_cpu(lp->tx_ring[i].status));
2484 printk("\n");
2485 }
Don Fryb368a3f2006-09-13 10:16:07 -07002486 pcnet32_restart(dev, CSR0_NORMAL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002487
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002488 dev->trans_start = jiffies;
2489 netif_wake_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002490
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002491 spin_unlock_irqrestore(&lp->lock, flags);
2492}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002493
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002494static int pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev)
2495{
2496 struct pcnet32_private *lp = dev->priv;
2497 unsigned long ioaddr = dev->base_addr;
2498 u16 status;
2499 int entry;
2500 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002501
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002502 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002503
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002504 if (netif_msg_tx_queued(lp)) {
2505 printk(KERN_DEBUG
2506 "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n",
Don Fryb368a3f2006-09-13 10:16:07 -07002507 dev->name, lp->a.read_csr(ioaddr, CSR0));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002508 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002509
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002510 /* Default status -- will not enable Successful-TxDone
2511 * interrupt when that option is available to us.
2512 */
2513 status = 0x8300;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002514
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002515 /* Fill in a Tx ring entry */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002516
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002517 /* Mask to ring buffer boundary. */
2518 entry = lp->cur_tx & lp->tx_mod_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002519
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002520 /* Caution: the write order is important here, set the status
2521 * with the "ownership" bits last. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002522
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002523 lp->tx_ring[entry].length = le16_to_cpu(-skb->len);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002524
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002525 lp->tx_ring[entry].misc = 0x00000000;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002526
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002527 lp->tx_skbuff[entry] = skb;
2528 lp->tx_dma_addr[entry] =
2529 pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
2530 lp->tx_ring[entry].base = (u32) le32_to_cpu(lp->tx_dma_addr[entry]);
2531 wmb(); /* Make sure owner changes after all others are visible */
2532 lp->tx_ring[entry].status = le16_to_cpu(status);
2533
2534 lp->cur_tx++;
2535 lp->stats.tx_bytes += skb->len;
2536
2537 /* Trigger an immediate send poll. */
Don Fryb368a3f2006-09-13 10:16:07 -07002538 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002539
2540 dev->trans_start = jiffies;
2541
2542 if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) {
2543 lp->tx_full = 1;
2544 netif_stop_queue(dev);
2545 }
2546 spin_unlock_irqrestore(&lp->lock, flags);
2547 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002548}
2549
2550/* The PCNET32 interrupt handler. */
2551static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01002552pcnet32_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002553{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002554 struct net_device *dev = dev_id;
2555 struct pcnet32_private *lp;
2556 unsigned long ioaddr;
Don Fry5c993462006-09-13 10:15:43 -07002557 u16 csr0;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002558 int boguscnt = max_interrupt_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002559
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002560 ioaddr = dev->base_addr;
2561 lp = dev->priv;
2562
2563 spin_lock(&lp->lock);
2564
Don Fry3904c322006-09-13 10:16:38 -07002565 csr0 = lp->a.read_csr(ioaddr, CSR0);
2566 while ((csr0 & 0x8f00) && --boguscnt >= 0) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002567 if (csr0 == 0xffff) {
2568 break; /* PCMCIA remove happened */
2569 }
2570 /* Acknowledge all of the current interrupt sources ASAP. */
Don Fry3904c322006-09-13 10:16:38 -07002571 lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002572
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002573 if (netif_msg_intr(lp))
2574 printk(KERN_DEBUG
2575 "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n",
Don Fry3904c322006-09-13 10:16:38 -07002576 dev->name, csr0, lp->a.read_csr(ioaddr, CSR0));
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002577
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002578 /* Log misc errors. */
2579 if (csr0 & 0x4000)
2580 lp->stats.tx_errors++; /* Tx babble. */
2581 if (csr0 & 0x1000) {
2582 /*
Don Fry3904c322006-09-13 10:16:38 -07002583 * This happens when our receive ring is full. This
2584 * shouldn't be a problem as we will see normal rx
2585 * interrupts for the frames in the receive ring. But
2586 * there are some PCI chipsets (I can reproduce this
2587 * on SP3G with Intel saturn chipset) which have
2588 * sometimes problems and will fill up the receive
2589 * ring with error descriptors. In this situation we
2590 * don't get a rx interrupt, but a missed frame
Don Fry7de745e2006-09-13 10:16:53 -07002591 * interrupt sooner or later.
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002592 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002593 lp->stats.rx_errors++; /* Missed a Rx frame. */
2594 }
2595 if (csr0 & 0x0800) {
2596 if (netif_msg_drv(lp))
2597 printk(KERN_ERR
2598 "%s: Bus master arbitration failure, status %4.4x.\n",
2599 dev->name, csr0);
2600 /* unlike for the lance, there is no restart needed */
2601 }
Don Fry7de745e2006-09-13 10:16:53 -07002602#ifdef CONFIG_PCNET32_NAPI
2603 if (netif_rx_schedule_prep(dev)) {
2604 u16 val;
2605 /* set interrupt masks */
2606 val = lp->a.read_csr(ioaddr, CSR3);
2607 val |= 0x5f00;
2608 lp->a.write_csr(ioaddr, CSR3, val);
2609 mmiowb();
2610 __netif_rx_schedule(dev);
2611 break;
2612 }
2613#else
2614 pcnet32_rx(dev, dev->weight);
2615 if (pcnet32_tx(dev)) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002616 /* reset the chip to clear the error condition, then restart */
2617 lp->a.reset(ioaddr);
Don Fry7de745e2006-09-13 10:16:53 -07002618 lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */
Don Fryb368a3f2006-09-13 10:16:07 -07002619 pcnet32_restart(dev, CSR0_START);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002620 netif_wake_queue(dev);
2621 }
Don Fry7de745e2006-09-13 10:16:53 -07002622#endif
Don Fry3904c322006-09-13 10:16:38 -07002623 csr0 = lp->a.read_csr(ioaddr, CSR0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002624 }
2625
Don Fry7de745e2006-09-13 10:16:53 -07002626#ifndef CONFIG_PCNET32_NAPI
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002627 /* Set interrupt enable. */
Don Fryb368a3f2006-09-13 10:16:07 -07002628 lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN);
Don Fry7de745e2006-09-13 10:16:53 -07002629#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07002630
2631 if (netif_msg_intr(lp))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002632 printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n",
Don Fryb368a3f2006-09-13 10:16:07 -07002633 dev->name, lp->a.read_csr(ioaddr, CSR0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002635 spin_unlock(&lp->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002636
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002637 return IRQ_HANDLED;
2638}
Linus Torvalds1da177e2005-04-16 15:20:36 -07002639
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002640static int pcnet32_close(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002642 unsigned long ioaddr = dev->base_addr;
2643 struct pcnet32_private *lp = dev->priv;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002644 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002645
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002646 del_timer_sync(&lp->watchdog_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002647
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002648 netif_stop_queue(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002649
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002650 spin_lock_irqsave(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002651
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002652 lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002653
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002654 if (netif_msg_ifdown(lp))
2655 printk(KERN_DEBUG
2656 "%s: Shutting down ethercard, status was %2.2x.\n",
Don Fryb368a3f2006-09-13 10:16:07 -07002657 dev->name, lp->a.read_csr(ioaddr, CSR0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002658
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002659 /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */
Don Fryb368a3f2006-09-13 10:16:07 -07002660 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002661
Linus Torvalds1da177e2005-04-16 15:20:36 -07002662 /*
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002663 * Switch back to 16bit mode to avoid problems with dumb
2664 * DOS packet driver after a warm reboot
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665 */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002666 lp->a.write_bcr(ioaddr, 20, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002667
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002668 spin_unlock_irqrestore(&lp->lock, flags);
2669
2670 free_irq(dev->irq, dev);
2671
2672 spin_lock_irqsave(&lp->lock, flags);
2673
Don Fryac5bfe42006-06-29 13:55:27 -07002674 pcnet32_purge_rx_ring(dev);
2675 pcnet32_purge_tx_ring(dev);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002676
2677 spin_unlock_irqrestore(&lp->lock, flags);
2678
2679 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680}
2681
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002682static struct net_device_stats *pcnet32_get_stats(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002684 struct pcnet32_private *lp = dev->priv;
2685 unsigned long ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002686 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002687
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002688 spin_lock_irqsave(&lp->lock, flags);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002689 lp->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002690 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002691
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002692 return &lp->stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002693}
2694
2695/* taken from the sunlance driver, which it took from the depca driver */
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002696static void pcnet32_load_multicast(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002697{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002698 struct pcnet32_private *lp = dev->priv;
Don Fry6ecb7662007-03-06 10:45:23 -08002699 volatile struct pcnet32_init_block *ib = lp->init_block;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002700 volatile u16 *mcast_table = (u16 *) & ib->filter;
2701 struct dev_mc_list *dmi = dev->mc_list;
Don Frydf27f4a2006-06-29 13:55:02 -07002702 unsigned long ioaddr = dev->base_addr;
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002703 char *addrs;
2704 int i;
2705 u32 crc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002706
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002707 /* set all multicast bits */
2708 if (dev->flags & IFF_ALLMULTI) {
2709 ib->filter[0] = 0xffffffff;
2710 ib->filter[1] = 0xffffffff;
Don Frydf27f4a2006-06-29 13:55:02 -07002711 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff);
2712 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff);
2713 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff);
2714 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002715 return;
2716 }
2717 /* clear the multicast filter */
2718 ib->filter[0] = 0;
2719 ib->filter[1] = 0;
2720
2721 /* Add addresses */
2722 for (i = 0; i < dev->mc_count; i++) {
2723 addrs = dmi->dmi_addr;
2724 dmi = dmi->next;
2725
2726 /* multicast address? */
2727 if (!(*addrs & 1))
2728 continue;
2729
2730 crc = ether_crc_le(6, addrs);
2731 crc = crc >> 26;
2732 mcast_table[crc >> 4] =
2733 le16_to_cpu(le16_to_cpu(mcast_table[crc >> 4]) |
2734 (1 << (crc & 0xf)));
2735 }
Don Frydf27f4a2006-06-29 13:55:02 -07002736 for (i = 0; i < 4; i++)
2737 lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i,
2738 le16_to_cpu(mcast_table[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002739 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002740}
2741
Linus Torvalds1da177e2005-04-16 15:20:36 -07002742/*
2743 * Set or clear the multicast filter for this adaptor.
2744 */
2745static void pcnet32_set_multicast_list(struct net_device *dev)
2746{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002747 unsigned long ioaddr = dev->base_addr, flags;
2748 struct pcnet32_private *lp = dev->priv;
Don Frydf27f4a2006-06-29 13:55:02 -07002749 int csr15, suspended;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002750
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002751 spin_lock_irqsave(&lp->lock, flags);
Don Frydf27f4a2006-06-29 13:55:02 -07002752 suspended = pcnet32_suspend(dev, &flags, 0);
2753 csr15 = lp->a.read_csr(ioaddr, CSR15);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002754 if (dev->flags & IFF_PROMISC) {
2755 /* Log any net taps. */
2756 if (netif_msg_hw(lp))
2757 printk(KERN_INFO "%s: Promiscuous mode enabled.\n",
2758 dev->name);
Don Fry6ecb7662007-03-06 10:45:23 -08002759 lp->init_block->mode =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002760 le16_to_cpu(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) <<
2761 7);
Don Frydf27f4a2006-06-29 13:55:02 -07002762 lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002763 } else {
Don Fry6ecb7662007-03-06 10:45:23 -08002764 lp->init_block->mode =
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002765 le16_to_cpu((lp->options & PCNET32_PORT_PORTSEL) << 7);
Don Frydf27f4a2006-06-29 13:55:02 -07002766 lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002767 pcnet32_load_multicast(dev);
2768 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002769
Don Frydf27f4a2006-06-29 13:55:02 -07002770 if (suspended) {
2771 int csr5;
2772 /* clear SUSPEND (SPND) - CSR5 bit 0 */
2773 csr5 = lp->a.read_csr(ioaddr, CSR5);
2774 lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND));
Don Fryb368a3f2006-09-13 10:16:07 -07002775 } else {
Don Frydf27f4a2006-06-29 13:55:02 -07002776 lp->a.write_csr(ioaddr, CSR0, CSR0_STOP);
2777 pcnet32_restart(dev, CSR0_NORMAL);
2778 netif_wake_queue(dev);
2779 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002780
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002781 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002782}
2783
2784/* This routine assumes that the lp->lock is held */
2785static int mdio_read(struct net_device *dev, int phy_id, int reg_num)
2786{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002787 struct pcnet32_private *lp = dev->priv;
2788 unsigned long ioaddr = dev->base_addr;
2789 u16 val_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002790
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002791 if (!lp->mii)
2792 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002793
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002794 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2795 val_out = lp->a.read_bcr(ioaddr, 34);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002796
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002797 return val_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002798}
2799
2800/* This routine assumes that the lp->lock is held */
2801static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val)
2802{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002803 struct pcnet32_private *lp = dev->priv;
2804 unsigned long ioaddr = dev->base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002805
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002806 if (!lp->mii)
2807 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002808
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002809 lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f));
2810 lp->a.write_bcr(ioaddr, 34, val);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002811}
2812
2813static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2814{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002815 struct pcnet32_private *lp = dev->priv;
2816 int rc;
2817 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002818
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002819 /* SIOC[GS]MIIxxx ioctls */
2820 if (lp->mii) {
2821 spin_lock_irqsave(&lp->lock, flags);
2822 rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL);
2823 spin_unlock_irqrestore(&lp->lock, flags);
2824 } else {
2825 rc = -EOPNOTSUPP;
2826 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002827
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002828 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002829}
2830
Don Fryac62ef02006-03-20 15:26:03 -08002831static int pcnet32_check_otherphy(struct net_device *dev)
2832{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002833 struct pcnet32_private *lp = dev->priv;
2834 struct mii_if_info mii = lp->mii_if;
2835 u16 bmcr;
2836 int i;
Don Fryac62ef02006-03-20 15:26:03 -08002837
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002838 for (i = 0; i < PCNET32_MAX_PHYS; i++) {
2839 if (i == lp->mii_if.phy_id)
2840 continue; /* skip active phy */
2841 if (lp->phymask & (1 << i)) {
2842 mii.phy_id = i;
2843 if (mii_link_ok(&mii)) {
2844 /* found PHY with active link */
2845 if (netif_msg_link(lp))
2846 printk(KERN_INFO
2847 "%s: Using PHY number %d.\n",
2848 dev->name, i);
Don Fryac62ef02006-03-20 15:26:03 -08002849
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002850 /* isolate inactive phy */
2851 bmcr =
2852 mdio_read(dev, lp->mii_if.phy_id, MII_BMCR);
2853 mdio_write(dev, lp->mii_if.phy_id, MII_BMCR,
2854 bmcr | BMCR_ISOLATE);
Don Fryac62ef02006-03-20 15:26:03 -08002855
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002856 /* de-isolate new phy */
2857 bmcr = mdio_read(dev, i, MII_BMCR);
2858 mdio_write(dev, i, MII_BMCR,
2859 bmcr & ~BMCR_ISOLATE);
Don Fryac62ef02006-03-20 15:26:03 -08002860
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002861 /* set new phy address */
2862 lp->mii_if.phy_id = i;
2863 return 1;
2864 }
2865 }
Don Fryac62ef02006-03-20 15:26:03 -08002866 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002867 return 0;
Don Fryac62ef02006-03-20 15:26:03 -08002868}
2869
2870/*
2871 * Show the status of the media. Similar to mii_check_media however it
2872 * correctly shows the link speed for all (tested) pcnet32 variants.
2873 * Devices with no mii just report link state without speed.
2874 *
2875 * Caller is assumed to hold and release the lp->lock.
2876 */
2877
2878static void pcnet32_check_media(struct net_device *dev, int verbose)
2879{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002880 struct pcnet32_private *lp = dev->priv;
2881 int curr_link;
2882 int prev_link = netif_carrier_ok(dev) ? 1 : 0;
2883 u32 bcr9;
Don Fryac62ef02006-03-20 15:26:03 -08002884
Don Fryac62ef02006-03-20 15:26:03 -08002885 if (lp->mii) {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002886 curr_link = mii_link_ok(&lp->mii_if);
Don Fryac62ef02006-03-20 15:26:03 -08002887 } else {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002888 ulong ioaddr = dev->base_addr; /* card base I/O address */
2889 curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0);
Don Fryac62ef02006-03-20 15:26:03 -08002890 }
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002891 if (!curr_link) {
2892 if (prev_link || verbose) {
2893 netif_carrier_off(dev);
2894 if (netif_msg_link(lp))
2895 printk(KERN_INFO "%s: link down\n", dev->name);
2896 }
2897 if (lp->phycount > 1) {
2898 curr_link = pcnet32_check_otherphy(dev);
2899 prev_link = 0;
2900 }
2901 } else if (verbose || !prev_link) {
2902 netif_carrier_on(dev);
2903 if (lp->mii) {
2904 if (netif_msg_link(lp)) {
2905 struct ethtool_cmd ecmd;
2906 mii_ethtool_gset(&lp->mii_if, &ecmd);
2907 printk(KERN_INFO
2908 "%s: link up, %sMbps, %s-duplex\n",
2909 dev->name,
2910 (ecmd.speed == SPEED_100) ? "100" : "10",
2911 (ecmd.duplex ==
2912 DUPLEX_FULL) ? "full" : "half");
2913 }
2914 bcr9 = lp->a.read_bcr(dev->base_addr, 9);
2915 if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) {
2916 if (lp->mii_if.full_duplex)
2917 bcr9 |= (1 << 0);
2918 else
2919 bcr9 &= ~(1 << 0);
2920 lp->a.write_bcr(dev->base_addr, 9, bcr9);
2921 }
2922 } else {
2923 if (netif_msg_link(lp))
2924 printk(KERN_INFO "%s: link up\n", dev->name);
2925 }
2926 }
Don Fryac62ef02006-03-20 15:26:03 -08002927}
2928
2929/*
2930 * Check for loss of link and link establishment.
2931 * Can not use mii_check_media because it does nothing if mode is forced.
2932 */
2933
Linus Torvalds1da177e2005-04-16 15:20:36 -07002934static void pcnet32_watchdog(struct net_device *dev)
2935{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002936 struct pcnet32_private *lp = dev->priv;
2937 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002938
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002939 /* Print the link status if it has changed */
2940 spin_lock_irqsave(&lp->lock, flags);
2941 pcnet32_check_media(dev, 0);
2942 spin_unlock_irqrestore(&lp->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002943
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002944 mod_timer(&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002945}
2946
2947static void __devexit pcnet32_remove_one(struct pci_dev *pdev)
2948{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002949 struct net_device *dev = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002951 if (dev) {
2952 struct pcnet32_private *lp = dev->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002953
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002954 unregister_netdev(dev);
2955 pcnet32_free_ring(dev);
2956 release_region(dev->base_addr, PCNET32_TOTAL_SIZE);
Don Fry6ecb7662007-03-06 10:45:23 -08002957 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
2958 lp->init_block, lp->init_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002959 free_netdev(dev);
2960 pci_disable_device(pdev);
2961 pci_set_drvdata(pdev, NULL);
2962 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002963}
2964
2965static struct pci_driver pcnet32_driver = {
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002966 .name = DRV_NAME,
2967 .probe = pcnet32_probe_pci,
2968 .remove = __devexit_p(pcnet32_remove_one),
2969 .id_table = pcnet32_pci_tbl,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002970};
2971
2972/* An additional parameter that may be passed in... */
2973static int debug = -1;
2974static int tx_start_pt = -1;
2975static int pcnet32_have_pci;
2976
2977module_param(debug, int, 0);
2978MODULE_PARM_DESC(debug, DRV_NAME " debug level");
2979module_param(max_interrupt_work, int, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002980MODULE_PARM_DESC(max_interrupt_work,
2981 DRV_NAME " maximum events handled per interrupt");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002982module_param(rx_copybreak, int, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002983MODULE_PARM_DESC(rx_copybreak,
2984 DRV_NAME " copy breakpoint for copy-only-tiny-frames");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002985module_param(tx_start_pt, int, 0);
2986MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)");
2987module_param(pcnet32vlb, int, 0);
2988MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)");
2989module_param_array(options, int, NULL, 0);
2990MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)");
2991module_param_array(full_duplex, int, NULL, 0);
2992MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)");
2993/* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */
2994module_param_array(homepna, int, NULL, 0);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05002995MODULE_PARM_DESC(homepna,
2996 DRV_NAME
2997 " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002998
2999MODULE_AUTHOR("Thomas Bogendoerfer");
3000MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards");
3001MODULE_LICENSE("GPL");
3002
3003#define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
3004
3005static int __init pcnet32_init_module(void)
3006{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003007 printk(KERN_INFO "%s", version);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003009 pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003010
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003011 if ((tx_start_pt >= 0) && (tx_start_pt <= 3))
3012 tx_start = tx_start_pt;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003013
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003014 /* find the PCI devices */
Jeff Garzik29917622006-08-19 17:48:59 -04003015 if (!pci_register_driver(&pcnet32_driver))
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003016 pcnet32_have_pci = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003017
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003018 /* should we find any remaining VLbus devices ? */
3019 if (pcnet32vlb)
Don Frydcaf9762006-06-29 13:52:29 -07003020 pcnet32_probe_vlbus(pcnet32_portlist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003021
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003022 if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE))
3023 printk(KERN_INFO PFX "%d cards_found.\n", cards_found);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003024
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003025 return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003026}
3027
3028static void __exit pcnet32_cleanup_module(void)
3029{
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003030 struct net_device *next_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003031
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003032 while (pcnet32_dev) {
3033 struct pcnet32_private *lp = pcnet32_dev->priv;
3034 next_dev = lp->next;
3035 unregister_netdev(pcnet32_dev);
3036 pcnet32_free_ring(pcnet32_dev);
3037 release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE);
Don Fry6ecb7662007-03-06 10:45:23 -08003038 pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block),
3039 lp->init_block, lp->init_dma_addr);
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003040 free_netdev(pcnet32_dev);
3041 pcnet32_dev = next_dev;
3042 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07003043
Jeff Garzik4a5e8e22006-03-21 16:15:44 -05003044 if (pcnet32_have_pci)
3045 pci_unregister_driver(&pcnet32_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003046}
3047
3048module_init(pcnet32_init_module);
3049module_exit(pcnet32_cleanup_module);
3050
3051/*
3052 * Local variables:
3053 * c-indent-level: 4
3054 * tab-width: 8
3055 * End:
3056 */