Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* 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" | |
01935d7d DF |
25 | #define DRV_VERSION "1.35" |
26 | #define DRV_RELDATE "21.Apr.2008" | |
1da177e4 LT |
27 | #define PFX DRV_NAME ": " |
28 | ||
4a5e8e29 JG |
29 | static const char *const version = |
30 | DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " tsbogend@alpha.franken.de\n"; | |
1da177e4 LT |
31 | |
32 | #include <linux/module.h> | |
33 | #include <linux/kernel.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/ioport.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/interrupt.h> | |
39 | #include <linux/pci.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/init.h> | |
42 | #include <linux/ethtool.h> | |
43 | #include <linux/mii.h> | |
44 | #include <linux/crc32.h> | |
45 | #include <linux/netdevice.h> | |
46 | #include <linux/etherdevice.h> | |
47 | #include <linux/skbuff.h> | |
48 | #include <linux/spinlock.h> | |
49 | #include <linux/moduleparam.h> | |
50 | #include <linux/bitops.h> | |
51 | ||
52 | #include <asm/dma.h> | |
53 | #include <asm/io.h> | |
54 | #include <asm/uaccess.h> | |
55 | #include <asm/irq.h> | |
56 | ||
57 | /* | |
58 | * PCI device identifiers for "new style" Linux PCI Device Drivers | |
59 | */ | |
60 | static struct pci_device_id pcnet32_pci_tbl[] = { | |
f2622a2b DF |
61 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE_HOME), }, |
62 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE), }, | |
4a5e8e29 JG |
63 | |
64 | /* | |
65 | * Adapters that were sold with IBM's RS/6000 or pSeries hardware have | |
66 | * the incorrect vendor id. | |
67 | */ | |
f2622a2b DF |
68 | { PCI_DEVICE(PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_AMD_LANCE), |
69 | .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = 0xffff00, }, | |
4a5e8e29 JG |
70 | |
71 | { } /* terminate list */ | |
1da177e4 LT |
72 | }; |
73 | ||
4a5e8e29 | 74 | MODULE_DEVICE_TABLE(pci, pcnet32_pci_tbl); |
1da177e4 LT |
75 | |
76 | static int cards_found; | |
77 | ||
78 | /* | |
79 | * VLB I/O addresses | |
80 | */ | |
81 | static unsigned int pcnet32_portlist[] __initdata = | |
4a5e8e29 | 82 | { 0x300, 0x320, 0x340, 0x360, 0 }; |
1da177e4 LT |
83 | |
84 | static int pcnet32_debug = 0; | |
4a5e8e29 JG |
85 | static int tx_start = 1; /* Mapping -- 0:20, 1:64, 2:128, 3:~220 (depends on chip vers) */ |
86 | static int pcnet32vlb; /* check for VLB cards ? */ | |
1da177e4 LT |
87 | |
88 | static struct net_device *pcnet32_dev; | |
89 | ||
90 | static int max_interrupt_work = 2; | |
91 | static int rx_copybreak = 200; | |
92 | ||
93 | #define PCNET32_PORT_AUI 0x00 | |
94 | #define PCNET32_PORT_10BT 0x01 | |
95 | #define PCNET32_PORT_GPSI 0x02 | |
96 | #define PCNET32_PORT_MII 0x03 | |
97 | ||
98 | #define PCNET32_PORT_PORTSEL 0x03 | |
99 | #define PCNET32_PORT_ASEL 0x04 | |
100 | #define PCNET32_PORT_100 0x40 | |
101 | #define PCNET32_PORT_FD 0x80 | |
102 | ||
103 | #define PCNET32_DMA_MASK 0xffffffff | |
104 | ||
105 | #define PCNET32_WATCHDOG_TIMEOUT (jiffies + (2 * HZ)) | |
106 | #define PCNET32_BLINK_TIMEOUT (jiffies + (HZ/4)) | |
107 | ||
108 | /* | |
109 | * table to translate option values from tulip | |
110 | * to internal options | |
111 | */ | |
f71e1309 | 112 | static const unsigned char options_mapping[] = { |
4a5e8e29 JG |
113 | PCNET32_PORT_ASEL, /* 0 Auto-select */ |
114 | PCNET32_PORT_AUI, /* 1 BNC/AUI */ | |
115 | PCNET32_PORT_AUI, /* 2 AUI/BNC */ | |
116 | PCNET32_PORT_ASEL, /* 3 not supported */ | |
117 | PCNET32_PORT_10BT | PCNET32_PORT_FD, /* 4 10baseT-FD */ | |
118 | PCNET32_PORT_ASEL, /* 5 not supported */ | |
119 | PCNET32_PORT_ASEL, /* 6 not supported */ | |
120 | PCNET32_PORT_ASEL, /* 7 not supported */ | |
121 | PCNET32_PORT_ASEL, /* 8 not supported */ | |
122 | PCNET32_PORT_MII, /* 9 MII 10baseT */ | |
123 | PCNET32_PORT_MII | PCNET32_PORT_FD, /* 10 MII 10baseT-FD */ | |
124 | PCNET32_PORT_MII, /* 11 MII (autosel) */ | |
125 | PCNET32_PORT_10BT, /* 12 10BaseT */ | |
126 | PCNET32_PORT_MII | PCNET32_PORT_100, /* 13 MII 100BaseTx */ | |
127 | /* 14 MII 100BaseTx-FD */ | |
128 | PCNET32_PORT_MII | PCNET32_PORT_100 | PCNET32_PORT_FD, | |
129 | PCNET32_PORT_ASEL /* 15 not supported */ | |
1da177e4 LT |
130 | }; |
131 | ||
132 | static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { | |
4a5e8e29 | 133 | "Loopback test (offline)" |
1da177e4 | 134 | }; |
4a5e8e29 | 135 | |
4c3616cd | 136 | #define PCNET32_TEST_LEN ARRAY_SIZE(pcnet32_gstrings_test) |
1da177e4 | 137 | |
ac62ef04 | 138 | #define PCNET32_NUM_REGS 136 |
1da177e4 | 139 | |
4a5e8e29 | 140 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
1da177e4 LT |
141 | static int options[MAX_UNITS]; |
142 | static int full_duplex[MAX_UNITS]; | |
143 | static int homepna[MAX_UNITS]; | |
144 | ||
145 | /* | |
146 | * Theory of Operation | |
147 | * | |
148 | * This driver uses the same software structure as the normal lance | |
149 | * driver. So look for a verbose description in lance.c. The differences | |
150 | * to the normal lance driver is the use of the 32bit mode of PCnet32 | |
151 | * and PCnetPCI chips. Because these chips are 32bit chips, there is no | |
152 | * 16MB limitation and we don't need bounce buffers. | |
153 | */ | |
154 | ||
1da177e4 LT |
155 | /* |
156 | * Set the number of Tx and Rx buffers, using Log_2(# buffers). | |
157 | * Reasonable default values are 4 Tx buffers, and 16 Rx buffers. | |
158 | * That translates to 2 (4 == 2^^2) and 4 (16 == 2^^4). | |
159 | */ | |
160 | #ifndef PCNET32_LOG_TX_BUFFERS | |
eabf0415 HWL |
161 | #define PCNET32_LOG_TX_BUFFERS 4 |
162 | #define PCNET32_LOG_RX_BUFFERS 5 | |
163 | #define PCNET32_LOG_MAX_TX_BUFFERS 9 /* 2^9 == 512 */ | |
164 | #define PCNET32_LOG_MAX_RX_BUFFERS 9 | |
1da177e4 LT |
165 | #endif |
166 | ||
167 | #define TX_RING_SIZE (1 << (PCNET32_LOG_TX_BUFFERS)) | |
eabf0415 | 168 | #define TX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_TX_BUFFERS)) |
1da177e4 LT |
169 | |
170 | #define RX_RING_SIZE (1 << (PCNET32_LOG_RX_BUFFERS)) | |
eabf0415 | 171 | #define RX_MAX_RING_SIZE (1 << (PCNET32_LOG_MAX_RX_BUFFERS)) |
1da177e4 | 172 | |
232c5640 DF |
173 | #define PKT_BUF_SKB 1544 |
174 | /* actual buffer length after being aligned */ | |
175 | #define PKT_BUF_SIZE (PKT_BUF_SKB - NET_IP_ALIGN) | |
176 | /* chip wants twos complement of the (aligned) buffer length */ | |
177 | #define NEG_BUF_SIZE (NET_IP_ALIGN - PKT_BUF_SKB) | |
1da177e4 LT |
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 | ||
06c87850 DF |
192 | #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 | ||
8d916266 DF |
209 | #define PCNET32_79C970A 0x2621 |
210 | ||
1da177e4 LT |
211 | /* The PCNET32 Rx and Tx ring descriptors. */ |
212 | struct pcnet32_rx_head { | |
3e33545b AV |
213 | __le32 base; |
214 | __le16 buf_length; /* two`s complement of length */ | |
215 | __le16 status; | |
216 | __le32 msg_length; | |
217 | __le32 reserved; | |
1da177e4 LT |
218 | }; |
219 | ||
220 | struct pcnet32_tx_head { | |
3e33545b AV |
221 | __le32 base; |
222 | __le16 length; /* two`s complement of length */ | |
223 | __le16 status; | |
224 | __le32 misc; | |
225 | __le32 reserved; | |
1da177e4 LT |
226 | }; |
227 | ||
228 | /* The PCNET32 32-Bit initialization block, described in databook. */ | |
229 | struct pcnet32_init_block { | |
3e33545b AV |
230 | __le16 mode; |
231 | __le16 tlen_rlen; | |
0b5bf225 | 232 | u8 phys_addr[6]; |
3e33545b AV |
233 | __le16 reserved; |
234 | __le32 filter[2]; | |
4a5e8e29 | 235 | /* Receive and transmit ring base, along with extra bits. */ |
3e33545b AV |
236 | __le32 rx_ring; |
237 | __le32 tx_ring; | |
1da177e4 LT |
238 | }; |
239 | ||
240 | /* PCnet32 access functions */ | |
241 | struct pcnet32_access { | |
4a5e8e29 JG |
242 | 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); | |
1da177e4 LT |
249 | }; |
250 | ||
251 | /* | |
76209926 HWL |
252 | * The first field of pcnet32_private is read by the ethernet device |
253 | * so the structure should be allocated using pci_alloc_consistent(). | |
1da177e4 LT |
254 | */ |
255 | struct pcnet32_private { | |
6ecb7667 | 256 | struct pcnet32_init_block *init_block; |
4a5e8e29 | 257 | /* The Tx and Rx ring entries must be aligned on 16-byte boundaries in 32bit mode. */ |
0b5bf225 JG |
258 | struct pcnet32_rx_head *rx_ring; |
259 | struct pcnet32_tx_head *tx_ring; | |
6ecb7667 DF |
260 | dma_addr_t init_dma_addr;/* DMA address of beginning of the init block, |
261 | returned by pci_alloc_consistent */ | |
0b5bf225 JG |
262 | struct pci_dev *pci_dev; |
263 | const char *name; | |
4a5e8e29 | 264 | /* The saved address of a sent-in-place packet/buffer, for skfree(). */ |
0b5bf225 JG |
265 | 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 | ||
bea3348e SH |
283 | struct net_device *dev; |
284 | struct napi_struct napi; | |
0b5bf225 JG |
285 | char tx_full; |
286 | char phycount; /* number of phys found */ | |
287 | int options; | |
288 | unsigned int shared_irq:1, /* shared irq possible */ | |
289 | dxsuflo:1, /* disable transmit stop on uflo */ | |
290 | mii:1; /* mii port available */ | |
291 | struct net_device *next; | |
292 | struct mii_if_info mii_if; | |
293 | struct timer_list watchdog_timer; | |
294 | struct timer_list blink_timer; | |
295 | u32 msg_enable; /* debug message level */ | |
4a5e8e29 JG |
296 | |
297 | /* each bit indicates an available PHY */ | |
0b5bf225 | 298 | u32 phymask; |
8d916266 | 299 | unsigned short chip_version; /* which variant this is */ |
1da177e4 LT |
300 | }; |
301 | ||
4a5e8e29 JG |
302 | static int pcnet32_probe_pci(struct pci_dev *, const struct pci_device_id *); |
303 | static int pcnet32_probe1(unsigned long, int, struct pci_dev *); | |
304 | static int pcnet32_open(struct net_device *); | |
305 | static int pcnet32_init_ring(struct net_device *); | |
306 | static int pcnet32_start_xmit(struct sk_buff *, struct net_device *); | |
4a5e8e29 | 307 | static void pcnet32_tx_timeout(struct net_device *dev); |
7d12e780 | 308 | static irqreturn_t pcnet32_interrupt(int, void *); |
4a5e8e29 | 309 | static int pcnet32_close(struct net_device *); |
1da177e4 LT |
310 | static struct net_device_stats *pcnet32_get_stats(struct net_device *); |
311 | static void pcnet32_load_multicast(struct net_device *dev); | |
312 | static void pcnet32_set_multicast_list(struct net_device *); | |
4a5e8e29 | 313 | static int pcnet32_ioctl(struct net_device *, struct ifreq *, int); |
1da177e4 LT |
314 | static void pcnet32_watchdog(struct net_device *); |
315 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num); | |
4a5e8e29 JG |
316 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, |
317 | int val); | |
1da177e4 LT |
318 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits); |
319 | static void pcnet32_ethtool_test(struct net_device *dev, | |
4a5e8e29 JG |
320 | struct ethtool_test *eth_test, u64 * data); |
321 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1); | |
1da177e4 LT |
322 | static int pcnet32_phys_id(struct net_device *dev, u32 data); |
323 | static void pcnet32_led_blink_callback(struct net_device *dev); | |
324 | static int pcnet32_get_regs_len(struct net_device *dev); | |
325 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
4a5e8e29 | 326 | void *ptr); |
1bcd3153 | 327 | static void pcnet32_purge_tx_ring(struct net_device *dev); |
b166cfba | 328 | static int pcnet32_alloc_ring(struct net_device *dev, const char *name); |
eabf0415 | 329 | static void pcnet32_free_ring(struct net_device *dev); |
ac62ef04 | 330 | static void pcnet32_check_media(struct net_device *dev, int verbose); |
eabf0415 | 331 | |
4a5e8e29 | 332 | static u16 pcnet32_wio_read_csr(unsigned long addr, int index) |
1da177e4 | 333 | { |
4a5e8e29 JG |
334 | outw(index, addr + PCNET32_WIO_RAP); |
335 | return inw(addr + PCNET32_WIO_RDP); | |
1da177e4 LT |
336 | } |
337 | ||
4a5e8e29 | 338 | static void pcnet32_wio_write_csr(unsigned long addr, int index, u16 val) |
1da177e4 | 339 | { |
4a5e8e29 JG |
340 | outw(index, addr + PCNET32_WIO_RAP); |
341 | outw(val, addr + PCNET32_WIO_RDP); | |
1da177e4 LT |
342 | } |
343 | ||
4a5e8e29 | 344 | static u16 pcnet32_wio_read_bcr(unsigned long addr, int index) |
1da177e4 | 345 | { |
4a5e8e29 JG |
346 | outw(index, addr + PCNET32_WIO_RAP); |
347 | return inw(addr + PCNET32_WIO_BDP); | |
1da177e4 LT |
348 | } |
349 | ||
4a5e8e29 | 350 | static void pcnet32_wio_write_bcr(unsigned long addr, int index, u16 val) |
1da177e4 | 351 | { |
4a5e8e29 JG |
352 | outw(index, addr + PCNET32_WIO_RAP); |
353 | outw(val, addr + PCNET32_WIO_BDP); | |
1da177e4 LT |
354 | } |
355 | ||
4a5e8e29 | 356 | static u16 pcnet32_wio_read_rap(unsigned long addr) |
1da177e4 | 357 | { |
4a5e8e29 | 358 | return inw(addr + PCNET32_WIO_RAP); |
1da177e4 LT |
359 | } |
360 | ||
4a5e8e29 | 361 | static void pcnet32_wio_write_rap(unsigned long addr, u16 val) |
1da177e4 | 362 | { |
4a5e8e29 | 363 | outw(val, addr + PCNET32_WIO_RAP); |
1da177e4 LT |
364 | } |
365 | ||
4a5e8e29 | 366 | static void pcnet32_wio_reset(unsigned long addr) |
1da177e4 | 367 | { |
4a5e8e29 | 368 | inw(addr + PCNET32_WIO_RESET); |
1da177e4 LT |
369 | } |
370 | ||
4a5e8e29 | 371 | static int pcnet32_wio_check(unsigned long addr) |
1da177e4 | 372 | { |
4a5e8e29 JG |
373 | outw(88, addr + PCNET32_WIO_RAP); |
374 | return (inw(addr + PCNET32_WIO_RAP) == 88); | |
1da177e4 LT |
375 | } |
376 | ||
377 | static struct pcnet32_access pcnet32_wio = { | |
4a5e8e29 JG |
378 | .read_csr = pcnet32_wio_read_csr, |
379 | .write_csr = pcnet32_wio_write_csr, | |
380 | .read_bcr = pcnet32_wio_read_bcr, | |
381 | .write_bcr = pcnet32_wio_write_bcr, | |
382 | .read_rap = pcnet32_wio_read_rap, | |
383 | .write_rap = pcnet32_wio_write_rap, | |
384 | .reset = pcnet32_wio_reset | |
1da177e4 LT |
385 | }; |
386 | ||
4a5e8e29 | 387 | static u16 pcnet32_dwio_read_csr(unsigned long addr, int index) |
1da177e4 | 388 | { |
4a5e8e29 JG |
389 | outl(index, addr + PCNET32_DWIO_RAP); |
390 | return (inl(addr + PCNET32_DWIO_RDP) & 0xffff); | |
1da177e4 LT |
391 | } |
392 | ||
4a5e8e29 | 393 | static void pcnet32_dwio_write_csr(unsigned long addr, int index, u16 val) |
1da177e4 | 394 | { |
4a5e8e29 JG |
395 | outl(index, addr + PCNET32_DWIO_RAP); |
396 | outl(val, addr + PCNET32_DWIO_RDP); | |
1da177e4 LT |
397 | } |
398 | ||
4a5e8e29 | 399 | static u16 pcnet32_dwio_read_bcr(unsigned long addr, int index) |
1da177e4 | 400 | { |
4a5e8e29 JG |
401 | outl(index, addr + PCNET32_DWIO_RAP); |
402 | return (inl(addr + PCNET32_DWIO_BDP) & 0xffff); | |
1da177e4 LT |
403 | } |
404 | ||
4a5e8e29 | 405 | static void pcnet32_dwio_write_bcr(unsigned long addr, int index, u16 val) |
1da177e4 | 406 | { |
4a5e8e29 JG |
407 | outl(index, addr + PCNET32_DWIO_RAP); |
408 | outl(val, addr + PCNET32_DWIO_BDP); | |
1da177e4 LT |
409 | } |
410 | ||
4a5e8e29 | 411 | static u16 pcnet32_dwio_read_rap(unsigned long addr) |
1da177e4 | 412 | { |
4a5e8e29 | 413 | return (inl(addr + PCNET32_DWIO_RAP) & 0xffff); |
1da177e4 LT |
414 | } |
415 | ||
4a5e8e29 | 416 | static void pcnet32_dwio_write_rap(unsigned long addr, u16 val) |
1da177e4 | 417 | { |
4a5e8e29 | 418 | outl(val, addr + PCNET32_DWIO_RAP); |
1da177e4 LT |
419 | } |
420 | ||
4a5e8e29 | 421 | static void pcnet32_dwio_reset(unsigned long addr) |
1da177e4 | 422 | { |
4a5e8e29 | 423 | inl(addr + PCNET32_DWIO_RESET); |
1da177e4 LT |
424 | } |
425 | ||
4a5e8e29 | 426 | static int pcnet32_dwio_check(unsigned long addr) |
1da177e4 | 427 | { |
4a5e8e29 JG |
428 | outl(88, addr + PCNET32_DWIO_RAP); |
429 | return ((inl(addr + PCNET32_DWIO_RAP) & 0xffff) == 88); | |
1da177e4 LT |
430 | } |
431 | ||
432 | static struct pcnet32_access pcnet32_dwio = { | |
4a5e8e29 JG |
433 | .read_csr = pcnet32_dwio_read_csr, |
434 | .write_csr = pcnet32_dwio_write_csr, | |
435 | .read_bcr = pcnet32_dwio_read_bcr, | |
436 | .write_bcr = pcnet32_dwio_write_bcr, | |
437 | .read_rap = pcnet32_dwio_read_rap, | |
438 | .write_rap = pcnet32_dwio_write_rap, | |
439 | .reset = pcnet32_dwio_reset | |
1da177e4 LT |
440 | }; |
441 | ||
06c87850 DF |
442 | static void pcnet32_netif_stop(struct net_device *dev) |
443 | { | |
bea3348e | 444 | struct pcnet32_private *lp = netdev_priv(dev); |
01935d7d | 445 | |
06c87850 | 446 | dev->trans_start = jiffies; |
bea3348e | 447 | napi_disable(&lp->napi); |
06c87850 DF |
448 | netif_tx_disable(dev); |
449 | } | |
450 | ||
451 | static void pcnet32_netif_start(struct net_device *dev) | |
452 | { | |
bea3348e | 453 | struct pcnet32_private *lp = netdev_priv(dev); |
d1d08d12 DM |
454 | ulong ioaddr = dev->base_addr; |
455 | u16 val; | |
01935d7d | 456 | |
06c87850 | 457 | netif_wake_queue(dev); |
d1d08d12 DM |
458 | val = lp->a.read_csr(ioaddr, CSR3); |
459 | val &= 0x00ff; | |
460 | lp->a.write_csr(ioaddr, CSR3, val); | |
bea3348e | 461 | napi_enable(&lp->napi); |
06c87850 DF |
462 | } |
463 | ||
464 | /* | |
465 | * Allocate space for the new sized tx ring. | |
466 | * Free old resources | |
467 | * Save new resources. | |
468 | * Any failure keeps old resources. | |
469 | * Must be called with lp->lock held. | |
470 | */ | |
471 | static void pcnet32_realloc_tx_ring(struct net_device *dev, | |
472 | struct pcnet32_private *lp, | |
473 | unsigned int size) | |
474 | { | |
475 | dma_addr_t new_ring_dma_addr; | |
476 | dma_addr_t *new_dma_addr_list; | |
477 | struct pcnet32_tx_head *new_tx_ring; | |
478 | struct sk_buff **new_skb_list; | |
479 | ||
480 | pcnet32_purge_tx_ring(dev); | |
481 | ||
482 | new_tx_ring = pci_alloc_consistent(lp->pci_dev, | |
483 | sizeof(struct pcnet32_tx_head) * | |
484 | (1 << size), | |
485 | &new_ring_dma_addr); | |
486 | if (new_tx_ring == NULL) { | |
487 | if (netif_msg_drv(lp)) | |
488 | printk("\n" KERN_ERR | |
489 | "%s: Consistent memory allocation failed.\n", | |
490 | dev->name); | |
491 | return; | |
492 | } | |
493 | memset(new_tx_ring, 0, sizeof(struct pcnet32_tx_head) * (1 << size)); | |
494 | ||
495 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), | |
496 | GFP_ATOMIC); | |
497 | if (!new_dma_addr_list) { | |
498 | if (netif_msg_drv(lp)) | |
499 | printk("\n" KERN_ERR | |
500 | "%s: Memory allocation failed.\n", dev->name); | |
501 | goto free_new_tx_ring; | |
502 | } | |
503 | ||
504 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), | |
505 | GFP_ATOMIC); | |
506 | if (!new_skb_list) { | |
507 | if (netif_msg_drv(lp)) | |
508 | printk("\n" KERN_ERR | |
509 | "%s: Memory allocation failed.\n", dev->name); | |
510 | goto free_new_lists; | |
511 | } | |
512 | ||
513 | kfree(lp->tx_skbuff); | |
514 | kfree(lp->tx_dma_addr); | |
515 | pci_free_consistent(lp->pci_dev, | |
516 | sizeof(struct pcnet32_tx_head) * | |
517 | lp->tx_ring_size, lp->tx_ring, | |
518 | lp->tx_ring_dma_addr); | |
519 | ||
520 | lp->tx_ring_size = (1 << size); | |
521 | lp->tx_mod_mask = lp->tx_ring_size - 1; | |
522 | lp->tx_len_bits = (size << 12); | |
523 | lp->tx_ring = new_tx_ring; | |
524 | lp->tx_ring_dma_addr = new_ring_dma_addr; | |
525 | lp->tx_dma_addr = new_dma_addr_list; | |
526 | lp->tx_skbuff = new_skb_list; | |
527 | return; | |
528 | ||
529 | free_new_lists: | |
530 | kfree(new_dma_addr_list); | |
531 | free_new_tx_ring: | |
532 | pci_free_consistent(lp->pci_dev, | |
533 | sizeof(struct pcnet32_tx_head) * | |
534 | (1 << size), | |
535 | new_tx_ring, | |
536 | new_ring_dma_addr); | |
537 | return; | |
538 | } | |
539 | ||
540 | /* | |
541 | * Allocate space for the new sized rx ring. | |
542 | * Re-use old receive buffers. | |
543 | * alloc extra buffers | |
544 | * free unneeded buffers | |
545 | * free unneeded buffers | |
546 | * Save new resources. | |
547 | * Any failure keeps old resources. | |
548 | * Must be called with lp->lock held. | |
549 | */ | |
550 | static void pcnet32_realloc_rx_ring(struct net_device *dev, | |
551 | struct pcnet32_private *lp, | |
552 | unsigned int size) | |
553 | { | |
554 | dma_addr_t new_ring_dma_addr; | |
555 | dma_addr_t *new_dma_addr_list; | |
556 | struct pcnet32_rx_head *new_rx_ring; | |
557 | struct sk_buff **new_skb_list; | |
558 | int new, overlap; | |
559 | ||
560 | new_rx_ring = pci_alloc_consistent(lp->pci_dev, | |
561 | sizeof(struct pcnet32_rx_head) * | |
562 | (1 << size), | |
563 | &new_ring_dma_addr); | |
564 | if (new_rx_ring == NULL) { | |
565 | if (netif_msg_drv(lp)) | |
566 | printk("\n" KERN_ERR | |
567 | "%s: Consistent memory allocation failed.\n", | |
568 | dev->name); | |
569 | return; | |
570 | } | |
571 | memset(new_rx_ring, 0, sizeof(struct pcnet32_rx_head) * (1 << size)); | |
572 | ||
573 | new_dma_addr_list = kcalloc((1 << size), sizeof(dma_addr_t), | |
574 | GFP_ATOMIC); | |
575 | if (!new_dma_addr_list) { | |
576 | if (netif_msg_drv(lp)) | |
577 | printk("\n" KERN_ERR | |
578 | "%s: Memory allocation failed.\n", dev->name); | |
579 | goto free_new_rx_ring; | |
580 | } | |
581 | ||
582 | new_skb_list = kcalloc((1 << size), sizeof(struct sk_buff *), | |
583 | GFP_ATOMIC); | |
584 | if (!new_skb_list) { | |
585 | if (netif_msg_drv(lp)) | |
586 | printk("\n" KERN_ERR | |
587 | "%s: Memory allocation failed.\n", dev->name); | |
588 | goto free_new_lists; | |
589 | } | |
590 | ||
591 | /* first copy the current receive buffers */ | |
592 | overlap = min(size, lp->rx_ring_size); | |
593 | for (new = 0; new < overlap; new++) { | |
594 | new_rx_ring[new] = lp->rx_ring[new]; | |
595 | new_dma_addr_list[new] = lp->rx_dma_addr[new]; | |
596 | new_skb_list[new] = lp->rx_skbuff[new]; | |
597 | } | |
598 | /* now allocate any new buffers needed */ | |
599 | for (; new < size; new++ ) { | |
600 | struct sk_buff *rx_skbuff; | |
232c5640 | 601 | new_skb_list[new] = dev_alloc_skb(PKT_BUF_SKB); |
06c87850 DF |
602 | if (!(rx_skbuff = new_skb_list[new])) { |
603 | /* keep the original lists and buffers */ | |
604 | if (netif_msg_drv(lp)) | |
605 | printk(KERN_ERR | |
606 | "%s: pcnet32_realloc_rx_ring dev_alloc_skb failed.\n", | |
607 | dev->name); | |
608 | goto free_all_new; | |
609 | } | |
232c5640 | 610 | skb_reserve(rx_skbuff, NET_IP_ALIGN); |
06c87850 DF |
611 | |
612 | new_dma_addr_list[new] = | |
613 | pci_map_single(lp->pci_dev, rx_skbuff->data, | |
232c5640 | 614 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
3e33545b | 615 | new_rx_ring[new].base = cpu_to_le32(new_dma_addr_list[new]); |
232c5640 | 616 | new_rx_ring[new].buf_length = cpu_to_le16(NEG_BUF_SIZE); |
3e33545b | 617 | new_rx_ring[new].status = cpu_to_le16(0x8000); |
06c87850 DF |
618 | } |
619 | /* and free any unneeded buffers */ | |
620 | for (; new < lp->rx_ring_size; new++) { | |
621 | if (lp->rx_skbuff[new]) { | |
622 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[new], | |
232c5640 | 623 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
06c87850 DF |
624 | dev_kfree_skb(lp->rx_skbuff[new]); |
625 | } | |
626 | } | |
627 | ||
628 | kfree(lp->rx_skbuff); | |
629 | kfree(lp->rx_dma_addr); | |
630 | pci_free_consistent(lp->pci_dev, | |
631 | sizeof(struct pcnet32_rx_head) * | |
632 | lp->rx_ring_size, lp->rx_ring, | |
633 | lp->rx_ring_dma_addr); | |
634 | ||
635 | lp->rx_ring_size = (1 << size); | |
636 | lp->rx_mod_mask = lp->rx_ring_size - 1; | |
637 | lp->rx_len_bits = (size << 4); | |
638 | lp->rx_ring = new_rx_ring; | |
639 | lp->rx_ring_dma_addr = new_ring_dma_addr; | |
640 | lp->rx_dma_addr = new_dma_addr_list; | |
641 | lp->rx_skbuff = new_skb_list; | |
642 | return; | |
643 | ||
644 | free_all_new: | |
645 | for (; --new >= lp->rx_ring_size; ) { | |
646 | if (new_skb_list[new]) { | |
647 | pci_unmap_single(lp->pci_dev, new_dma_addr_list[new], | |
232c5640 | 648 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
06c87850 DF |
649 | dev_kfree_skb(new_skb_list[new]); |
650 | } | |
651 | } | |
652 | kfree(new_skb_list); | |
653 | free_new_lists: | |
654 | kfree(new_dma_addr_list); | |
655 | free_new_rx_ring: | |
656 | pci_free_consistent(lp->pci_dev, | |
657 | sizeof(struct pcnet32_rx_head) * | |
658 | (1 << size), | |
659 | new_rx_ring, | |
660 | new_ring_dma_addr); | |
661 | return; | |
662 | } | |
663 | ||
ac5bfe40 DF |
664 | static void pcnet32_purge_rx_ring(struct net_device *dev) |
665 | { | |
1e56a4b4 | 666 | struct pcnet32_private *lp = netdev_priv(dev); |
ac5bfe40 DF |
667 | int i; |
668 | ||
669 | /* free all allocated skbuffs */ | |
670 | for (i = 0; i < lp->rx_ring_size; i++) { | |
671 | lp->rx_ring[i].status = 0; /* CPU owns buffer */ | |
672 | wmb(); /* Make sure adapter sees owner change */ | |
673 | if (lp->rx_skbuff[i]) { | |
674 | pci_unmap_single(lp->pci_dev, lp->rx_dma_addr[i], | |
232c5640 | 675 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
ac5bfe40 DF |
676 | dev_kfree_skb_any(lp->rx_skbuff[i]); |
677 | } | |
678 | lp->rx_skbuff[i] = NULL; | |
679 | lp->rx_dma_addr[i] = 0; | |
680 | } | |
681 | } | |
682 | ||
1da177e4 LT |
683 | #ifdef CONFIG_NET_POLL_CONTROLLER |
684 | static void pcnet32_poll_controller(struct net_device *dev) | |
685 | { | |
4a5e8e29 | 686 | disable_irq(dev->irq); |
7d12e780 | 687 | pcnet32_interrupt(0, dev); |
4a5e8e29 | 688 | enable_irq(dev->irq); |
1da177e4 LT |
689 | } |
690 | #endif | |
691 | ||
1da177e4 LT |
692 | static int pcnet32_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
693 | { | |
1e56a4b4 | 694 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
695 | unsigned long flags; |
696 | int r = -EOPNOTSUPP; | |
1da177e4 | 697 | |
4a5e8e29 JG |
698 | if (lp->mii) { |
699 | spin_lock_irqsave(&lp->lock, flags); | |
700 | mii_ethtool_gset(&lp->mii_if, cmd); | |
701 | spin_unlock_irqrestore(&lp->lock, flags); | |
702 | r = 0; | |
703 | } | |
704 | return r; | |
1da177e4 LT |
705 | } |
706 | ||
707 | static int pcnet32_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
708 | { | |
1e56a4b4 | 709 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
710 | unsigned long flags; |
711 | int r = -EOPNOTSUPP; | |
1da177e4 | 712 | |
4a5e8e29 JG |
713 | if (lp->mii) { |
714 | spin_lock_irqsave(&lp->lock, flags); | |
715 | r = mii_ethtool_sset(&lp->mii_if, cmd); | |
716 | spin_unlock_irqrestore(&lp->lock, flags); | |
717 | } | |
718 | return r; | |
1da177e4 LT |
719 | } |
720 | ||
4a5e8e29 JG |
721 | static void pcnet32_get_drvinfo(struct net_device *dev, |
722 | struct ethtool_drvinfo *info) | |
1da177e4 | 723 | { |
1e56a4b4 | 724 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
725 | |
726 | strcpy(info->driver, DRV_NAME); | |
727 | strcpy(info->version, DRV_VERSION); | |
728 | if (lp->pci_dev) | |
729 | strcpy(info->bus_info, pci_name(lp->pci_dev)); | |
730 | else | |
731 | sprintf(info->bus_info, "VLB 0x%lx", dev->base_addr); | |
1da177e4 LT |
732 | } |
733 | ||
734 | static u32 pcnet32_get_link(struct net_device *dev) | |
735 | { | |
1e56a4b4 | 736 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
737 | unsigned long flags; |
738 | int r; | |
1da177e4 | 739 | |
4a5e8e29 JG |
740 | spin_lock_irqsave(&lp->lock, flags); |
741 | if (lp->mii) { | |
742 | r = mii_link_ok(&lp->mii_if); | |
8d916266 | 743 | } else if (lp->chip_version >= PCNET32_79C970A) { |
4a5e8e29 JG |
744 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
745 | r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); | |
8d916266 DF |
746 | } else { /* can not detect link on really old chips */ |
747 | r = 1; | |
4a5e8e29 JG |
748 | } |
749 | spin_unlock_irqrestore(&lp->lock, flags); | |
750 | ||
751 | return r; | |
1da177e4 LT |
752 | } |
753 | ||
754 | static u32 pcnet32_get_msglevel(struct net_device *dev) | |
755 | { | |
1e56a4b4 | 756 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 757 | return lp->msg_enable; |
1da177e4 LT |
758 | } |
759 | ||
760 | static void pcnet32_set_msglevel(struct net_device *dev, u32 value) | |
761 | { | |
1e56a4b4 | 762 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 763 | lp->msg_enable = value; |
1da177e4 LT |
764 | } |
765 | ||
766 | static int pcnet32_nway_reset(struct net_device *dev) | |
767 | { | |
1e56a4b4 | 768 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
769 | unsigned long flags; |
770 | int r = -EOPNOTSUPP; | |
1da177e4 | 771 | |
4a5e8e29 JG |
772 | if (lp->mii) { |
773 | spin_lock_irqsave(&lp->lock, flags); | |
774 | r = mii_nway_restart(&lp->mii_if); | |
775 | spin_unlock_irqrestore(&lp->lock, flags); | |
776 | } | |
777 | return r; | |
1da177e4 LT |
778 | } |
779 | ||
4a5e8e29 JG |
780 | static void pcnet32_get_ringparam(struct net_device *dev, |
781 | struct ethtool_ringparam *ering) | |
1da177e4 | 782 | { |
1e56a4b4 | 783 | struct pcnet32_private *lp = netdev_priv(dev); |
1da177e4 | 784 | |
6dcd60c2 DF |
785 | ering->tx_max_pending = TX_MAX_RING_SIZE; |
786 | ering->tx_pending = lp->tx_ring_size; | |
787 | ering->rx_max_pending = RX_MAX_RING_SIZE; | |
788 | ering->rx_pending = lp->rx_ring_size; | |
eabf0415 HWL |
789 | } |
790 | ||
4a5e8e29 JG |
791 | static int pcnet32_set_ringparam(struct net_device *dev, |
792 | struct ethtool_ringparam *ering) | |
eabf0415 | 793 | { |
1e56a4b4 | 794 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 795 | unsigned long flags; |
06c87850 DF |
796 | unsigned int size; |
797 | ulong ioaddr = dev->base_addr; | |
4a5e8e29 JG |
798 | int i; |
799 | ||
800 | if (ering->rx_mini_pending || ering->rx_jumbo_pending) | |
801 | return -EINVAL; | |
802 | ||
803 | if (netif_running(dev)) | |
06c87850 | 804 | pcnet32_netif_stop(dev); |
4a5e8e29 JG |
805 | |
806 | spin_lock_irqsave(&lp->lock, flags); | |
06c87850 DF |
807 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
808 | ||
809 | size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); | |
4a5e8e29 JG |
810 | |
811 | /* set the minimum ring size to 4, to allow the loopback test to work | |
812 | * unchanged. | |
813 | */ | |
814 | for (i = 2; i <= PCNET32_LOG_MAX_TX_BUFFERS; i++) { | |
06c87850 | 815 | if (size <= (1 << i)) |
4a5e8e29 JG |
816 | break; |
817 | } | |
06c87850 DF |
818 | if ((1 << i) != lp->tx_ring_size) |
819 | pcnet32_realloc_tx_ring(dev, lp, i); | |
b368a3fb | 820 | |
06c87850 | 821 | size = min(ering->rx_pending, (unsigned int)RX_MAX_RING_SIZE); |
4a5e8e29 | 822 | for (i = 2; i <= PCNET32_LOG_MAX_RX_BUFFERS; i++) { |
06c87850 | 823 | if (size <= (1 << i)) |
4a5e8e29 JG |
824 | break; |
825 | } | |
06c87850 DF |
826 | if ((1 << i) != lp->rx_ring_size) |
827 | pcnet32_realloc_rx_ring(dev, lp, i); | |
b368a3fb | 828 | |
bea3348e | 829 | lp->napi.weight = lp->rx_ring_size / 2; |
06c87850 DF |
830 | |
831 | if (netif_running(dev)) { | |
832 | pcnet32_netif_start(dev); | |
833 | pcnet32_restart(dev, CSR0_NORMAL); | |
4a5e8e29 | 834 | } |
eabf0415 | 835 | |
4a5e8e29 | 836 | spin_unlock_irqrestore(&lp->lock, flags); |
eabf0415 | 837 | |
06c87850 DF |
838 | if (netif_msg_drv(lp)) |
839 | printk(KERN_INFO | |
4a5e8e29 JG |
840 | "%s: Ring Param Settings: RX: %d, TX: %d\n", dev->name, |
841 | lp->rx_ring_size, lp->tx_ring_size); | |
eabf0415 | 842 | |
4a5e8e29 | 843 | return 0; |
1da177e4 LT |
844 | } |
845 | ||
4a5e8e29 JG |
846 | static void pcnet32_get_strings(struct net_device *dev, u32 stringset, |
847 | u8 * data) | |
1da177e4 | 848 | { |
4a5e8e29 | 849 | memcpy(data, pcnet32_gstrings_test, sizeof(pcnet32_gstrings_test)); |
1da177e4 LT |
850 | } |
851 | ||
b9f2c044 | 852 | static int pcnet32_get_sset_count(struct net_device *dev, int sset) |
1da177e4 | 853 | { |
b9f2c044 JG |
854 | switch (sset) { |
855 | case ETH_SS_TEST: | |
856 | return PCNET32_TEST_LEN; | |
857 | default: | |
858 | return -EOPNOTSUPP; | |
859 | } | |
1da177e4 LT |
860 | } |
861 | ||
862 | static void pcnet32_ethtool_test(struct net_device *dev, | |
4a5e8e29 | 863 | struct ethtool_test *test, u64 * data) |
1da177e4 | 864 | { |
1e56a4b4 | 865 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
866 | int rc; |
867 | ||
868 | if (test->flags == ETH_TEST_FL_OFFLINE) { | |
869 | rc = pcnet32_loopback_test(dev, data); | |
870 | if (rc) { | |
871 | if (netif_msg_hw(lp)) | |
872 | printk(KERN_DEBUG "%s: Loopback test failed.\n", | |
873 | dev->name); | |
874 | test->flags |= ETH_TEST_FL_FAILED; | |
875 | } else if (netif_msg_hw(lp)) | |
876 | printk(KERN_DEBUG "%s: Loopback test passed.\n", | |
877 | dev->name); | |
1da177e4 | 878 | } else if (netif_msg_hw(lp)) |
4a5e8e29 JG |
879 | printk(KERN_DEBUG |
880 | "%s: No tests to run (specify 'Offline' on ethtool).", | |
881 | dev->name); | |
882 | } /* end pcnet32_ethtool_test */ | |
1da177e4 | 883 | |
4a5e8e29 | 884 | static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) |
1da177e4 | 885 | { |
1e56a4b4 | 886 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
887 | struct pcnet32_access *a = &lp->a; /* access to registers */ |
888 | ulong ioaddr = dev->base_addr; /* card base I/O address */ | |
889 | struct sk_buff *skb; /* sk buff */ | |
890 | int x, i; /* counters */ | |
891 | int numbuffs = 4; /* number of TX/RX buffers and descs */ | |
892 | u16 status = 0x8300; /* TX ring status */ | |
3e33545b | 893 | __le16 teststatus; /* test of ring status */ |
4a5e8e29 JG |
894 | int rc; /* return code */ |
895 | int size; /* size of packets */ | |
896 | unsigned char *packet; /* source packet data */ | |
897 | static const int data_len = 60; /* length of source packets */ | |
898 | unsigned long flags; | |
899 | unsigned long ticks; | |
900 | ||
4a5e8e29 JG |
901 | rc = 1; /* default to fail */ |
902 | ||
903 | if (netif_running(dev)) | |
7de745e5 | 904 | pcnet32_netif_stop(dev); |
4a5e8e29 JG |
905 | |
906 | spin_lock_irqsave(&lp->lock, flags); | |
ac5bfe40 DF |
907 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ |
908 | ||
909 | numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size)); | |
4a5e8e29 JG |
910 | |
911 | /* Reset the PCNET32 */ | |
912 | lp->a.reset(ioaddr); | |
b368a3fb | 913 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
4a5e8e29 JG |
914 | |
915 | /* switch pcnet32 to 32bit mode */ | |
916 | lp->a.write_bcr(ioaddr, 20, 2); | |
917 | ||
4a5e8e29 JG |
918 | /* purge & init rings but don't actually restart */ |
919 | pcnet32_restart(dev, 0x0000); | |
920 | ||
ac5bfe40 | 921 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
4a5e8e29 JG |
922 | |
923 | /* Initialize Transmit buffers. */ | |
924 | size = data_len + 15; | |
925 | for (x = 0; x < numbuffs; x++) { | |
926 | if (!(skb = dev_alloc_skb(size))) { | |
927 | if (netif_msg_hw(lp)) | |
928 | printk(KERN_DEBUG | |
929 | "%s: Cannot allocate skb at line: %d!\n", | |
930 | dev->name, __LINE__); | |
931 | goto clean_up; | |
932 | } else { | |
933 | packet = skb->data; | |
934 | skb_put(skb, size); /* create space for data */ | |
935 | lp->tx_skbuff[x] = skb; | |
3e33545b | 936 | lp->tx_ring[x].length = cpu_to_le16(-skb->len); |
4a5e8e29 JG |
937 | lp->tx_ring[x].misc = 0; |
938 | ||
939 | /* put DA and SA into the skb */ | |
940 | for (i = 0; i < 6; i++) | |
941 | *packet++ = dev->dev_addr[i]; | |
942 | for (i = 0; i < 6; i++) | |
943 | *packet++ = dev->dev_addr[i]; | |
944 | /* type */ | |
945 | *packet++ = 0x08; | |
946 | *packet++ = 0x06; | |
947 | /* packet number */ | |
948 | *packet++ = x; | |
949 | /* fill packet with data */ | |
950 | for (i = 0; i < data_len; i++) | |
951 | *packet++ = i; | |
952 | ||
953 | lp->tx_dma_addr[x] = | |
954 | pci_map_single(lp->pci_dev, skb->data, skb->len, | |
955 | PCI_DMA_TODEVICE); | |
3e33545b | 956 | lp->tx_ring[x].base = cpu_to_le32(lp->tx_dma_addr[x]); |
4a5e8e29 | 957 | wmb(); /* Make sure owner changes after all others are visible */ |
3e33545b | 958 | lp->tx_ring[x].status = cpu_to_le16(status); |
4a5e8e29 | 959 | } |
1da177e4 | 960 | } |
1da177e4 | 961 | |
ac5bfe40 DF |
962 | x = a->read_bcr(ioaddr, 32); /* set internal loopback in BCR32 */ |
963 | a->write_bcr(ioaddr, 32, x | 0x0002); | |
4a5e8e29 | 964 | |
ac5bfe40 DF |
965 | /* set int loopback in CSR15 */ |
966 | x = a->read_csr(ioaddr, CSR15) & 0xfffc; | |
967 | lp->a.write_csr(ioaddr, CSR15, x | 0x0044); | |
4a5e8e29 | 968 | |
3e33545b | 969 | teststatus = cpu_to_le16(0x8000); |
ac5bfe40 | 970 | lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ |
4a5e8e29 JG |
971 | |
972 | /* Check status of descriptors */ | |
973 | for (x = 0; x < numbuffs; x++) { | |
974 | ticks = 0; | |
975 | rmb(); | |
976 | while ((lp->rx_ring[x].status & teststatus) && (ticks < 200)) { | |
977 | spin_unlock_irqrestore(&lp->lock, flags); | |
ac5bfe40 | 978 | msleep(1); |
4a5e8e29 JG |
979 | spin_lock_irqsave(&lp->lock, flags); |
980 | rmb(); | |
981 | ticks++; | |
982 | } | |
983 | if (ticks == 200) { | |
984 | if (netif_msg_hw(lp)) | |
985 | printk("%s: Desc %d failed to reset!\n", | |
986 | dev->name, x); | |
987 | break; | |
988 | } | |
989 | } | |
990 | ||
ac5bfe40 | 991 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ |
4a5e8e29 JG |
992 | wmb(); |
993 | if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { | |
994 | printk(KERN_DEBUG "%s: RX loopback packets:\n", dev->name); | |
995 | ||
996 | for (x = 0; x < numbuffs; x++) { | |
997 | printk(KERN_DEBUG "%s: Packet %d:\n", dev->name, x); | |
998 | skb = lp->rx_skbuff[x]; | |
999 | for (i = 0; i < size; i++) { | |
1000 | printk("%02x ", *(skb->data + i)); | |
1001 | } | |
1002 | printk("\n"); | |
1003 | } | |
1004 | } | |
1da177e4 | 1005 | |
4a5e8e29 JG |
1006 | x = 0; |
1007 | rc = 0; | |
1008 | while (x < numbuffs && !rc) { | |
1009 | skb = lp->rx_skbuff[x]; | |
1010 | packet = lp->tx_skbuff[x]->data; | |
1011 | for (i = 0; i < size; i++) { | |
1012 | if (*(skb->data + i) != packet[i]) { | |
1013 | if (netif_msg_hw(lp)) | |
1014 | printk(KERN_DEBUG | |
1015 | "%s: Error in compare! %2x - %02x %02x\n", | |
1016 | dev->name, i, *(skb->data + i), | |
1017 | packet[i]); | |
1018 | rc = 1; | |
1019 | break; | |
1020 | } | |
1021 | } | |
1022 | x++; | |
1023 | } | |
1da177e4 | 1024 | |
4a5e8e29 | 1025 | clean_up: |
ac5bfe40 | 1026 | *data1 = rc; |
4a5e8e29 | 1027 | pcnet32_purge_tx_ring(dev); |
1da177e4 | 1028 | |
ac5bfe40 DF |
1029 | x = a->read_csr(ioaddr, CSR15); |
1030 | a->write_csr(ioaddr, CSR15, (x & ~0x0044)); /* reset bits 6 and 2 */ | |
1da177e4 | 1031 | |
ac5bfe40 DF |
1032 | x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ |
1033 | a->write_bcr(ioaddr, 32, (x & ~0x0002)); | |
4a5e8e29 | 1034 | |
7de745e5 DF |
1035 | if (netif_running(dev)) { |
1036 | pcnet32_netif_start(dev); | |
1037 | pcnet32_restart(dev, CSR0_NORMAL); | |
1038 | } else { | |
1039 | pcnet32_purge_rx_ring(dev); | |
1040 | lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ | |
1041 | } | |
1042 | spin_unlock_irqrestore(&lp->lock, flags); | |
4a5e8e29 JG |
1043 | |
1044 | return (rc); | |
1045 | } /* end pcnet32_loopback_test */ | |
1da177e4 LT |
1046 | |
1047 | static void pcnet32_led_blink_callback(struct net_device *dev) | |
1048 | { | |
1e56a4b4 | 1049 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
1050 | struct pcnet32_access *a = &lp->a; |
1051 | ulong ioaddr = dev->base_addr; | |
1052 | unsigned long flags; | |
1053 | int i; | |
1054 | ||
1055 | spin_lock_irqsave(&lp->lock, flags); | |
1056 | for (i = 4; i < 8; i++) { | |
1057 | a->write_bcr(ioaddr, i, a->read_bcr(ioaddr, i) ^ 0x4000); | |
1058 | } | |
1059 | spin_unlock_irqrestore(&lp->lock, flags); | |
1060 | ||
1061 | mod_timer(&lp->blink_timer, PCNET32_BLINK_TIMEOUT); | |
1da177e4 LT |
1062 | } |
1063 | ||
1064 | static int pcnet32_phys_id(struct net_device *dev, u32 data) | |
1065 | { | |
1e56a4b4 | 1066 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
1067 | struct pcnet32_access *a = &lp->a; |
1068 | ulong ioaddr = dev->base_addr; | |
1069 | unsigned long flags; | |
1070 | int i, regs[4]; | |
1071 | ||
1072 | if (!lp->blink_timer.function) { | |
1073 | init_timer(&lp->blink_timer); | |
1074 | lp->blink_timer.function = (void *)pcnet32_led_blink_callback; | |
1075 | lp->blink_timer.data = (unsigned long)dev; | |
1076 | } | |
1077 | ||
1078 | /* Save the current value of the bcrs */ | |
1079 | spin_lock_irqsave(&lp->lock, flags); | |
1080 | for (i = 4; i < 8; i++) { | |
1081 | regs[i - 4] = a->read_bcr(ioaddr, i); | |
1082 | } | |
1083 | spin_unlock_irqrestore(&lp->lock, flags); | |
1084 | ||
1085 | mod_timer(&lp->blink_timer, jiffies); | |
1086 | set_current_state(TASK_INTERRUPTIBLE); | |
1087 | ||
3e33545b | 1088 | /* AV: the limit here makes no sense whatsoever */ |
4a5e8e29 JG |
1089 | if ((!data) || (data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))) |
1090 | data = (u32) (MAX_SCHEDULE_TIMEOUT / HZ); | |
1091 | ||
1092 | msleep_interruptible(data * 1000); | |
1093 | del_timer_sync(&lp->blink_timer); | |
1094 | ||
1095 | /* 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); | |
1101 | ||
1102 | return 0; | |
1da177e4 LT |
1103 | } |
1104 | ||
df27f4a6 DF |
1105 | /* |
1106 | * lp->lock must be held. | |
1107 | */ | |
1108 | static int pcnet32_suspend(struct net_device *dev, unsigned long *flags, | |
1109 | int can_sleep) | |
1110 | { | |
1111 | int csr5; | |
1e56a4b4 | 1112 | struct pcnet32_private *lp = netdev_priv(dev); |
df27f4a6 DF |
1113 | struct pcnet32_access *a = &lp->a; |
1114 | ulong ioaddr = dev->base_addr; | |
1115 | int ticks; | |
1116 | ||
8d916266 DF |
1117 | /* really old chips have to be stopped. */ |
1118 | if (lp->chip_version < PCNET32_79C970A) | |
1119 | return 0; | |
1120 | ||
df27f4a6 DF |
1121 | /* 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 | ||
3904c324 DF |
1146 | /* |
1147 | * process one receive descriptor entry | |
1148 | */ | |
1149 | ||
1150 | static 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 */ | |
4f1e5ba0 | 1168 | dev->stats.rx_errors++; /* end of a packet. */ |
3904c324 | 1169 | if (status & 0x20) |
4f1e5ba0 | 1170 | dev->stats.rx_frame_errors++; |
3904c324 | 1171 | if (status & 0x10) |
4f1e5ba0 | 1172 | dev->stats.rx_over_errors++; |
3904c324 | 1173 | if (status & 0x08) |
4f1e5ba0 | 1174 | dev->stats.rx_crc_errors++; |
3904c324 | 1175 | if (status & 0x04) |
4f1e5ba0 | 1176 | dev->stats.rx_fifo_errors++; |
3904c324 DF |
1177 | return; |
1178 | } | |
1179 | ||
1180 | pkt_len = (le32_to_cpu(rxp->msg_length) & 0xfff) - 4; | |
1181 | ||
1182 | /* Discard oversize frames. */ | |
232c5640 | 1183 | if (unlikely(pkt_len > PKT_BUF_SIZE)) { |
3904c324 DF |
1184 | if (netif_msg_drv(lp)) |
1185 | printk(KERN_ERR "%s: Impossible packet size %d!\n", | |
1186 | dev->name, pkt_len); | |
4f1e5ba0 | 1187 | dev->stats.rx_errors++; |
3904c324 DF |
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); | |
4f1e5ba0 | 1193 | dev->stats.rx_errors++; |
3904c324 DF |
1194 | return; |
1195 | } | |
1196 | ||
1197 | if (pkt_len > rx_copybreak) { | |
1198 | struct sk_buff *newskb; | |
1199 | ||
232c5640 DF |
1200 | if ((newskb = dev_alloc_skb(PKT_BUF_SKB))) { |
1201 | skb_reserve(newskb, NET_IP_ALIGN); | |
3904c324 DF |
1202 | skb = lp->rx_skbuff[entry]; |
1203 | pci_unmap_single(lp->pci_dev, | |
1204 | lp->rx_dma_addr[entry], | |
232c5640 | 1205 | PKT_BUF_SIZE, |
3904c324 DF |
1206 | PCI_DMA_FROMDEVICE); |
1207 | skb_put(skb, pkt_len); | |
1208 | lp->rx_skbuff[entry] = newskb; | |
3904c324 DF |
1209 | lp->rx_dma_addr[entry] = |
1210 | pci_map_single(lp->pci_dev, | |
1211 | newskb->data, | |
232c5640 | 1212 | PKT_BUF_SIZE, |
3904c324 | 1213 | PCI_DMA_FROMDEVICE); |
3e33545b | 1214 | rxp->base = cpu_to_le32(lp->rx_dma_addr[entry]); |
3904c324 DF |
1215 | rx_in_place = 1; |
1216 | } else | |
1217 | skb = NULL; | |
1218 | } else { | |
232c5640 | 1219 | skb = dev_alloc_skb(pkt_len + NET_IP_ALIGN); |
3904c324 DF |
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); | |
4f1e5ba0 | 1227 | dev->stats.rx_dropped++; |
3904c324 DF |
1228 | return; |
1229 | } | |
1230 | skb->dev = dev; | |
1231 | if (!rx_in_place) { | |
232c5640 | 1232 | skb_reserve(skb, NET_IP_ALIGN); |
3904c324 DF |
1233 | skb_put(skb, pkt_len); /* Make room */ |
1234 | pci_dma_sync_single_for_cpu(lp->pci_dev, | |
1235 | lp->rx_dma_addr[entry], | |
b2cbbd8e | 1236 | pkt_len, |
3904c324 | 1237 | PCI_DMA_FROMDEVICE); |
8c7b7faa | 1238 | skb_copy_to_linear_data(skb, |
3904c324 | 1239 | (unsigned char *)(lp->rx_skbuff[entry]->data), |
8c7b7faa | 1240 | pkt_len); |
3904c324 DF |
1241 | pci_dma_sync_single_for_device(lp->pci_dev, |
1242 | lp->rx_dma_addr[entry], | |
b2cbbd8e | 1243 | pkt_len, |
3904c324 DF |
1244 | PCI_DMA_FROMDEVICE); |
1245 | } | |
4f1e5ba0 | 1246 | dev->stats.rx_bytes += skb->len; |
3904c324 | 1247 | skb->protocol = eth_type_trans(skb, dev); |
7de745e5 | 1248 | netif_receive_skb(skb); |
4f1e5ba0 | 1249 | dev->stats.rx_packets++; |
3904c324 DF |
1250 | return; |
1251 | } | |
1252 | ||
bea3348e | 1253 | static int pcnet32_rx(struct net_device *dev, int budget) |
9691edd2 | 1254 | { |
1e56a4b4 | 1255 | struct pcnet32_private *lp = netdev_priv(dev); |
9691edd2 | 1256 | int entry = lp->cur_rx & lp->rx_mod_mask; |
3904c324 DF |
1257 | struct pcnet32_rx_head *rxp = &lp->rx_ring[entry]; |
1258 | int npackets = 0; | |
9691edd2 DF |
1259 | |
1260 | /* If we own the next entry, it's a new packet. Send it up. */ | |
bea3348e | 1261 | while (npackets < budget && (short)le16_to_cpu(rxp->status) >= 0) { |
3904c324 DF |
1262 | pcnet32_rx_entry(dev, lp, rxp, entry); |
1263 | npackets += 1; | |
9691edd2 | 1264 | /* |
3904c324 DF |
1265 | * The docs say that the buffer length isn't touched, but Andrew |
1266 | * Boyd of QNX reports that some revs of the 79C965 clear it. | |
9691edd2 | 1267 | */ |
232c5640 | 1268 | rxp->buf_length = cpu_to_le16(NEG_BUF_SIZE); |
3904c324 | 1269 | wmb(); /* Make sure owner changes after others are visible */ |
3e33545b | 1270 | rxp->status = cpu_to_le16(0x8000); |
9691edd2 | 1271 | entry = (++lp->cur_rx) & lp->rx_mod_mask; |
3904c324 | 1272 | rxp = &lp->rx_ring[entry]; |
9691edd2 DF |
1273 | } |
1274 | ||
7de745e5 | 1275 | return npackets; |
9691edd2 DF |
1276 | } |
1277 | ||
7de745e5 | 1278 | static int pcnet32_tx(struct net_device *dev) |
9691edd2 | 1279 | { |
1e56a4b4 | 1280 | struct pcnet32_private *lp = netdev_priv(dev); |
9691edd2 DF |
1281 | unsigned int dirty_tx = lp->dirty_tx; |
1282 | int delta; | |
1283 | int must_restart = 0; | |
1284 | ||
1285 | while (dirty_tx != lp->cur_tx) { | |
1286 | int entry = dirty_tx & lp->tx_mod_mask; | |
1287 | int status = (short)le16_to_cpu(lp->tx_ring[entry].status); | |
1288 | ||
1289 | if (status < 0) | |
1290 | break; /* It still hasn't been Txed */ | |
1291 | ||
1292 | lp->tx_ring[entry].base = 0; | |
1293 | ||
1294 | if (status & 0x4000) { | |
3904c324 | 1295 | /* There was a major error, log it. */ |
9691edd2 | 1296 | int err_status = le32_to_cpu(lp->tx_ring[entry].misc); |
4f1e5ba0 | 1297 | dev->stats.tx_errors++; |
9691edd2 DF |
1298 | if (netif_msg_tx_err(lp)) |
1299 | printk(KERN_ERR | |
1300 | "%s: Tx error status=%04x err_status=%08x\n", | |
1301 | dev->name, status, | |
1302 | err_status); | |
1303 | if (err_status & 0x04000000) | |
4f1e5ba0 | 1304 | dev->stats.tx_aborted_errors++; |
9691edd2 | 1305 | if (err_status & 0x08000000) |
4f1e5ba0 | 1306 | dev->stats.tx_carrier_errors++; |
9691edd2 | 1307 | if (err_status & 0x10000000) |
4f1e5ba0 | 1308 | dev->stats.tx_window_errors++; |
9691edd2 DF |
1309 | #ifndef DO_DXSUFLO |
1310 | if (err_status & 0x40000000) { | |
4f1e5ba0 | 1311 | dev->stats.tx_fifo_errors++; |
9691edd2 DF |
1312 | /* Ackk! On FIFO errors the Tx unit is turned off! */ |
1313 | /* Remove this verbosity later! */ | |
1314 | if (netif_msg_tx_err(lp)) | |
1315 | printk(KERN_ERR | |
7de745e5 DF |
1316 | "%s: Tx FIFO error!\n", |
1317 | dev->name); | |
9691edd2 DF |
1318 | must_restart = 1; |
1319 | } | |
1320 | #else | |
1321 | if (err_status & 0x40000000) { | |
4f1e5ba0 | 1322 | dev->stats.tx_fifo_errors++; |
9691edd2 DF |
1323 | if (!lp->dxsuflo) { /* If controller doesn't recover ... */ |
1324 | /* Ackk! On FIFO errors the Tx unit is turned off! */ | |
1325 | /* Remove this verbosity later! */ | |
3904c324 | 1326 | if (netif_msg_tx_err(lp)) |
9691edd2 | 1327 | printk(KERN_ERR |
7de745e5 DF |
1328 | "%s: Tx FIFO error!\n", |
1329 | dev->name); | |
9691edd2 DF |
1330 | must_restart = 1; |
1331 | } | |
1332 | } | |
1333 | #endif | |
1334 | } else { | |
1335 | if (status & 0x1800) | |
4f1e5ba0 DF |
1336 | dev->stats.collisions++; |
1337 | dev->stats.tx_packets++; | |
9691edd2 DF |
1338 | } |
1339 | ||
1340 | /* We must free the original skb */ | |
1341 | if (lp->tx_skbuff[entry]) { | |
1342 | pci_unmap_single(lp->pci_dev, | |
1343 | lp->tx_dma_addr[entry], | |
1344 | lp->tx_skbuff[entry]-> | |
1345 | len, PCI_DMA_TODEVICE); | |
3904c324 | 1346 | dev_kfree_skb_any(lp->tx_skbuff[entry]); |
9691edd2 DF |
1347 | lp->tx_skbuff[entry] = NULL; |
1348 | lp->tx_dma_addr[entry] = 0; | |
1349 | } | |
1350 | dirty_tx++; | |
1351 | } | |
1352 | ||
3904c324 | 1353 | delta = (lp->cur_tx - dirty_tx) & (lp->tx_mod_mask + lp->tx_ring_size); |
9691edd2 DF |
1354 | if (delta > lp->tx_ring_size) { |
1355 | if (netif_msg_drv(lp)) | |
1356 | printk(KERN_ERR | |
1357 | "%s: out-of-sync dirty pointer, %d vs. %d, full=%d.\n", | |
1358 | dev->name, dirty_tx, lp->cur_tx, | |
1359 | lp->tx_full); | |
1360 | dirty_tx += lp->tx_ring_size; | |
1361 | delta -= lp->tx_ring_size; | |
1362 | } | |
1363 | ||
1364 | if (lp->tx_full && | |
1365 | netif_queue_stopped(dev) && | |
1366 | delta < lp->tx_ring_size - 2) { | |
1367 | /* The ring is no longer full, clear tbusy. */ | |
1368 | lp->tx_full = 0; | |
1369 | netif_wake_queue(dev); | |
1370 | } | |
1371 | lp->dirty_tx = dirty_tx; | |
1372 | ||
1373 | return must_restart; | |
1374 | } | |
1375 | ||
bea3348e | 1376 | static int pcnet32_poll(struct napi_struct *napi, int budget) |
7de745e5 | 1377 | { |
bea3348e SH |
1378 | struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi); |
1379 | struct net_device *dev = lp->dev; | |
7de745e5 DF |
1380 | unsigned long ioaddr = dev->base_addr; |
1381 | unsigned long flags; | |
bea3348e | 1382 | int work_done; |
7de745e5 DF |
1383 | u16 val; |
1384 | ||
bea3348e | 1385 | work_done = pcnet32_rx(dev, budget); |
7de745e5 DF |
1386 | |
1387 | spin_lock_irqsave(&lp->lock, flags); | |
1388 | if (pcnet32_tx(dev)) { | |
1389 | /* reset the chip to clear the error condition, then restart */ | |
1390 | lp->a.reset(ioaddr); | |
1391 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ | |
1392 | pcnet32_restart(dev, CSR0_START); | |
1393 | netif_wake_queue(dev); | |
1394 | } | |
1395 | spin_unlock_irqrestore(&lp->lock, flags); | |
1396 | ||
bea3348e SH |
1397 | if (work_done < budget) { |
1398 | spin_lock_irqsave(&lp->lock, flags); | |
7de745e5 | 1399 | |
288379f0 | 1400 | __napi_complete(napi); |
7de745e5 | 1401 | |
bea3348e SH |
1402 | /* clear interrupt masks */ |
1403 | val = lp->a.read_csr(ioaddr, CSR3); | |
1404 | val &= 0x00ff; | |
1405 | lp->a.write_csr(ioaddr, CSR3, val); | |
7de745e5 | 1406 | |
bea3348e SH |
1407 | /* Set interrupt enable. */ |
1408 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); | |
1409 | mmiowb(); | |
1410 | spin_unlock_irqrestore(&lp->lock, flags); | |
1411 | } | |
1412 | return work_done; | |
7de745e5 | 1413 | } |
7de745e5 | 1414 | |
ac62ef04 DF |
1415 | #define PCNET32_REGS_PER_PHY 32 |
1416 | #define PCNET32_MAX_PHYS 32 | |
1da177e4 LT |
1417 | static int pcnet32_get_regs_len(struct net_device *dev) |
1418 | { | |
1e56a4b4 | 1419 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 1420 | int j = lp->phycount * PCNET32_REGS_PER_PHY; |
ac62ef04 | 1421 | |
4a5e8e29 | 1422 | return ((PCNET32_NUM_REGS + j) * sizeof(u16)); |
1da177e4 LT |
1423 | } |
1424 | ||
1425 | static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
4a5e8e29 | 1426 | void *ptr) |
1da177e4 | 1427 | { |
4a5e8e29 JG |
1428 | int i, csr0; |
1429 | u16 *buff = ptr; | |
1e56a4b4 | 1430 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
1431 | struct pcnet32_access *a = &lp->a; |
1432 | ulong ioaddr = dev->base_addr; | |
4a5e8e29 JG |
1433 | unsigned long flags; |
1434 | ||
1435 | spin_lock_irqsave(&lp->lock, flags); | |
1436 | ||
df27f4a6 DF |
1437 | csr0 = a->read_csr(ioaddr, CSR0); |
1438 | if (!(csr0 & CSR0_STOP)) /* If not stopped */ | |
1439 | pcnet32_suspend(dev, &flags, 1); | |
1da177e4 | 1440 | |
4a5e8e29 JG |
1441 | /* read address PROM */ |
1442 | for (i = 0; i < 16; i += 2) | |
1443 | *buff++ = inw(ioaddr + i); | |
1444 | ||
1445 | /* read control and status registers */ | |
1446 | for (i = 0; i < 90; i++) { | |
1447 | *buff++ = a->read_csr(ioaddr, i); | |
1448 | } | |
1449 | ||
1450 | *buff++ = a->read_csr(ioaddr, 112); | |
1451 | *buff++ = a->read_csr(ioaddr, 114); | |
1da177e4 | 1452 | |
4a5e8e29 JG |
1453 | /* read bus configuration registers */ |
1454 | for (i = 0; i < 30; i++) { | |
1455 | *buff++ = a->read_bcr(ioaddr, i); | |
1456 | } | |
1457 | *buff++ = 0; /* skip bcr30 so as not to hang 79C976 */ | |
1458 | for (i = 31; i < 36; i++) { | |
1459 | *buff++ = a->read_bcr(ioaddr, i); | |
1460 | } | |
1461 | ||
1462 | /* read mii phy registers */ | |
1463 | if (lp->mii) { | |
1464 | int j; | |
1465 | for (j = 0; j < PCNET32_MAX_PHYS; j++) { | |
1466 | if (lp->phymask & (1 << j)) { | |
1467 | for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { | |
1468 | lp->a.write_bcr(ioaddr, 33, | |
1469 | (j << 5) | i); | |
1470 | *buff++ = lp->a.read_bcr(ioaddr, 34); | |
1471 | } | |
1472 | } | |
1473 | } | |
1474 | } | |
1475 | ||
df27f4a6 DF |
1476 | if (!(csr0 & CSR0_STOP)) { /* If not stopped */ |
1477 | int csr5; | |
1478 | ||
4a5e8e29 | 1479 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ |
df27f4a6 DF |
1480 | csr5 = a->read_csr(ioaddr, CSR5); |
1481 | a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); | |
4a5e8e29 JG |
1482 | } |
1483 | ||
1484 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 LT |
1485 | } |
1486 | ||
7282d491 | 1487 | static const struct ethtool_ops pcnet32_ethtool_ops = { |
4a5e8e29 JG |
1488 | .get_settings = pcnet32_get_settings, |
1489 | .set_settings = pcnet32_set_settings, | |
1490 | .get_drvinfo = pcnet32_get_drvinfo, | |
1491 | .get_msglevel = pcnet32_get_msglevel, | |
1492 | .set_msglevel = pcnet32_set_msglevel, | |
1493 | .nway_reset = pcnet32_nway_reset, | |
1494 | .get_link = pcnet32_get_link, | |
1495 | .get_ringparam = pcnet32_get_ringparam, | |
1496 | .set_ringparam = pcnet32_set_ringparam, | |
4a5e8e29 | 1497 | .get_strings = pcnet32_get_strings, |
4a5e8e29 JG |
1498 | .self_test = pcnet32_ethtool_test, |
1499 | .phys_id = pcnet32_phys_id, | |
1500 | .get_regs_len = pcnet32_get_regs_len, | |
1501 | .get_regs = pcnet32_get_regs, | |
b9f2c044 | 1502 | .get_sset_count = pcnet32_get_sset_count, |
1da177e4 LT |
1503 | }; |
1504 | ||
1505 | /* only probes for non-PCI devices, the rest are handled by | |
1506 | * pci_register_driver via pcnet32_probe_pci */ | |
1507 | ||
dcaf9769 | 1508 | static void __devinit pcnet32_probe_vlbus(unsigned int *pcnet32_portlist) |
1da177e4 | 1509 | { |
4a5e8e29 JG |
1510 | unsigned int *port, ioaddr; |
1511 | ||
1512 | /* search for PCnet32 VLB cards at known addresses */ | |
1513 | for (port = pcnet32_portlist; (ioaddr = *port); port++) { | |
1514 | if (request_region | |
1515 | (ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_vlbus")) { | |
1516 | /* check if there is really a pcnet chip on that ioaddr */ | |
1517 | if ((inb(ioaddr + 14) == 0x57) | |
1518 | && (inb(ioaddr + 15) == 0x57)) { | |
1519 | pcnet32_probe1(ioaddr, 0, NULL); | |
1520 | } else { | |
1521 | release_region(ioaddr, PCNET32_TOTAL_SIZE); | |
1522 | } | |
1523 | } | |
1524 | } | |
1da177e4 LT |
1525 | } |
1526 | ||
1da177e4 LT |
1527 | static int __devinit |
1528 | pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1529 | { | |
4a5e8e29 JG |
1530 | unsigned long ioaddr; |
1531 | int err; | |
1532 | ||
1533 | err = pci_enable_device(pdev); | |
1534 | if (err < 0) { | |
1535 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1536 | printk(KERN_ERR PFX | |
1537 | "failed to enable device -- err=%d\n", err); | |
1538 | return err; | |
1539 | } | |
1540 | pci_set_master(pdev); | |
1541 | ||
1542 | ioaddr = pci_resource_start(pdev, 0); | |
1543 | if (!ioaddr) { | |
1544 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1545 | printk(KERN_ERR PFX | |
1546 | "card has no PCI IO resources, aborting\n"); | |
1547 | return -ENODEV; | |
1548 | } | |
1da177e4 | 1549 | |
4a5e8e29 JG |
1550 | if (!pci_dma_supported(pdev, PCNET32_DMA_MASK)) { |
1551 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1552 | printk(KERN_ERR PFX | |
1553 | "architecture does not support 32bit PCI busmaster DMA\n"); | |
1554 | return -ENODEV; | |
1555 | } | |
1556 | if (request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci") == | |
1557 | NULL) { | |
1558 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1559 | printk(KERN_ERR PFX | |
1560 | "io address range already allocated\n"); | |
1561 | return -EBUSY; | |
1562 | } | |
1da177e4 | 1563 | |
4a5e8e29 JG |
1564 | err = pcnet32_probe1(ioaddr, 1, pdev); |
1565 | if (err < 0) { | |
1566 | pci_disable_device(pdev); | |
1567 | } | |
1568 | return err; | |
1da177e4 LT |
1569 | } |
1570 | ||
3bc124dd SH |
1571 | static const struct net_device_ops pcnet32_netdev_ops = { |
1572 | .ndo_open = pcnet32_open, | |
1573 | .ndo_stop = pcnet32_close, | |
1574 | .ndo_start_xmit = pcnet32_start_xmit, | |
1575 | .ndo_tx_timeout = pcnet32_tx_timeout, | |
1576 | .ndo_get_stats = pcnet32_get_stats, | |
1577 | .ndo_set_multicast_list = pcnet32_set_multicast_list, | |
1578 | .ndo_do_ioctl = pcnet32_ioctl, | |
1579 | .ndo_change_mtu = eth_change_mtu, | |
1580 | .ndo_set_mac_address = eth_mac_addr, | |
1581 | .ndo_validate_addr = eth_validate_addr, | |
1582 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1583 | .ndo_poll_controller = pcnet32_poll_controller, | |
1584 | #endif | |
1585 | }; | |
1586 | ||
1da177e4 LT |
1587 | /* 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 | */ | |
1591 | static int __devinit | |
1592 | pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) | |
1593 | { | |
4a5e8e29 | 1594 | struct pcnet32_private *lp; |
4a5e8e29 JG |
1595 | 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; | |
1603 | ||
1604 | /* reset the chip */ | |
1605 | pcnet32_wio_reset(ioaddr); | |
1606 | ||
1607 | /* 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; | |
1617 | } | |
1618 | ||
1619 | 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 | } | |
1629 | ||
1630 | /* 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 | ||
1da177e4 | 1701 | /* |
4a5e8e29 JG |
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. | |
1da177e4 | 1707 | */ |
4a5e8e29 JG |
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 | ||
6ecb7667 | 1716 | dev = alloc_etherdev(sizeof(*lp)); |
4a5e8e29 JG |
1717 | 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 | ||
1da177e4 | 1725 | if (pcnet32_debug & NETIF_MSG_PROBE) |
4a5e8e29 JG |
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 | |
bc0e1fc9 LV |
1732 | * they disagree with the CSRs. If they miscompare, and the PROM addr |
1733 | * is valid, then the PROM addr is used. | |
4a5e8e29 JG |
1734 | */ |
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 */ | |
1da177e4 | 1744 | for (i = 0; i < 6; i++) |
4a5e8e29 JG |
1745 | promaddr[i] = inb(ioaddr + i); |
1746 | ||
1747 | 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 | } | |
1757 | } | |
1758 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); | |
1759 | ||
1760 | /* 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)); | |
1763 | ||
1764 | if (pcnet32_debug & NETIF_MSG_PROBE) { | |
e174961c | 1765 | printk(" %pM", dev->dev_addr); |
4a5e8e29 JG |
1766 | |
1767 | /* Version 0x2623 and 0x2624 */ | |
1768 | if (((chip_version + 1) & 0xfffe) == 0x2624) { | |
1769 | i = a->read_csr(ioaddr, 80) & 0x0C00; /* Check tx_start_pt */ | |
1770 | printk("\n" KERN_INFO " tx_start_pt(0x%04x):", i); | |
1771 | switch (i >> 10) { | |
1772 | case 0: | |
1773 | printk(" 20 bytes,"); | |
1774 | break; | |
1775 | case 1: | |
1776 | printk(" 64 bytes,"); | |
1777 | break; | |
1778 | case 2: | |
1779 | printk(" 128 bytes,"); | |
1780 | break; | |
1781 | case 3: | |
1782 | printk("~220 bytes,"); | |
1783 | break; | |
1784 | } | |
1785 | i = a->read_bcr(ioaddr, 18); /* Check Burst/Bus control */ | |
1786 | printk(" BCR18(%x):", i & 0xffff); | |
1787 | if (i & (1 << 5)) | |
1788 | printk("BurstWrEn "); | |
1789 | if (i & (1 << 6)) | |
1790 | printk("BurstRdEn "); | |
1791 | if (i & (1 << 7)) | |
1792 | printk("DWordIO "); | |
1793 | if (i & (1 << 11)) | |
1794 | printk("NoUFlow "); | |
1795 | i = a->read_bcr(ioaddr, 25); | |
1796 | printk("\n" KERN_INFO " SRAMSIZE=0x%04x,", i << 8); | |
1797 | i = a->read_bcr(ioaddr, 26); | |
1798 | printk(" SRAM_BND=0x%04x,", i << 8); | |
1799 | i = a->read_bcr(ioaddr, 27); | |
1800 | if (i & (1 << 14)) | |
1801 | printk("LowLatRx"); | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | dev->base_addr = ioaddr; | |
1e56a4b4 | 1806 | lp = netdev_priv(dev); |
4a5e8e29 | 1807 | /* pci_alloc_consistent returns page-aligned memory, so we do not have to check the alignment */ |
6ecb7667 DF |
1808 | if ((lp->init_block = |
1809 | pci_alloc_consistent(pdev, sizeof(*lp->init_block), &lp->init_dma_addr)) == NULL) { | |
4a5e8e29 JG |
1810 | if (pcnet32_debug & NETIF_MSG_PROBE) |
1811 | printk(KERN_ERR PFX | |
1812 | "Consistent memory allocation failed.\n"); | |
1813 | ret = -ENOMEM; | |
1814 | goto err_free_netdev; | |
1815 | } | |
4a5e8e29 JG |
1816 | lp->pci_dev = pdev; |
1817 | ||
bea3348e SH |
1818 | lp->dev = dev; |
1819 | ||
4a5e8e29 JG |
1820 | spin_lock_init(&lp->lock); |
1821 | ||
4a5e8e29 | 1822 | SET_NETDEV_DEV(dev, &pdev->dev); |
4a5e8e29 JG |
1823 | 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; | |
8d916266 | 1836 | lp->chip_version = chip_version; |
4a5e8e29 JG |
1837 | 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 | ||
feff348f DF |
1847 | /* napi.weight is used in both the napi and non-napi cases */ |
1848 | lp->napi.weight = lp->rx_ring_size / 2; | |
1849 | ||
bea3348e | 1850 | netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2); |
bea3348e | 1851 | |
4a5e8e29 JG |
1852 | if (fdx && !(lp->options & PCNET32_PORT_ASEL) && |
1853 | ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) | |
1854 | lp->options |= PCNET32_PORT_FD; | |
1855 | ||
1856 | if (!a) { | |
1857 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1858 | printk(KERN_ERR PFX "No access methods\n"); | |
1859 | ret = -ENODEV; | |
1860 | goto err_free_consistent; | |
1861 | } | |
1862 | lp->a = *a; | |
1863 | ||
1864 | /* prior to register_netdev, dev->name is not yet correct */ | |
1865 | if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { | |
1866 | ret = -ENOMEM; | |
1867 | goto err_free_ring; | |
1868 | } | |
1869 | /* detect special T1/E1 WAN card by checking for MAC address */ | |
1870 | if (dev->dev_addr[0] == 0x00 && dev->dev_addr[1] == 0xe0 | |
1da177e4 | 1871 | && dev->dev_addr[2] == 0x75) |
4a5e8e29 | 1872 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_GPSI; |
1da177e4 | 1873 | |
3e33545b | 1874 | lp->init_block->mode = cpu_to_le16(0x0003); /* Disable Rx and Tx. */ |
6ecb7667 | 1875 | lp->init_block->tlen_rlen = |
3e33545b | 1876 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
4a5e8e29 | 1877 | for (i = 0; i < 6; i++) |
6ecb7667 DF |
1878 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
1879 | lp->init_block->filter[0] = 0x00000000; | |
1880 | lp->init_block->filter[1] = 0x00000000; | |
3e33545b AV |
1881 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
1882 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); | |
4a5e8e29 JG |
1883 | |
1884 | /* switch pcnet32 to 32bit mode */ | |
1885 | a->write_bcr(ioaddr, 20, 2); | |
1886 | ||
6ecb7667 DF |
1887 | a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
1888 | a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); | |
4a5e8e29 JG |
1889 | |
1890 | if (pdev) { /* use the IRQ provided by PCI */ | |
1891 | dev->irq = pdev->irq; | |
1892 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1893 | printk(" assigned IRQ %d.\n", dev->irq); | |
1894 | } else { | |
1895 | unsigned long irq_mask = probe_irq_on(); | |
1896 | ||
1897 | /* | |
1898 | * To auto-IRQ we enable the initialization-done and DMA error | |
1899 | * interrupts. For ISA boards we get a DMA error, but VLB and PCI | |
1900 | * boards will work. | |
1901 | */ | |
1902 | /* Trigger an initialization just for the interrupt. */ | |
b368a3fb | 1903 | a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_INIT); |
4a5e8e29 JG |
1904 | mdelay(1); |
1905 | ||
1906 | dev->irq = probe_irq_off(irq_mask); | |
1907 | if (!dev->irq) { | |
1908 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1909 | printk(", failed to detect IRQ line.\n"); | |
1910 | ret = -ENODEV; | |
1911 | goto err_free_ring; | |
1912 | } | |
1913 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1914 | printk(", probed IRQ %d.\n", dev->irq); | |
1915 | } | |
1da177e4 | 1916 | |
4a5e8e29 JG |
1917 | /* Set the mii phy_id so that we can query the link state */ |
1918 | if (lp->mii) { | |
1919 | /* lp->phycount and lp->phymask are set to 0 by memset above */ | |
1920 | ||
1921 | lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; | |
1922 | /* scan for PHYs */ | |
1923 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { | |
1924 | unsigned short id1, id2; | |
1925 | ||
1926 | id1 = mdio_read(dev, i, MII_PHYSID1); | |
1927 | if (id1 == 0xffff) | |
1928 | continue; | |
1929 | id2 = mdio_read(dev, i, MII_PHYSID2); | |
1930 | if (id2 == 0xffff) | |
1931 | continue; | |
1932 | if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) | |
1933 | continue; /* 79C971 & 79C972 have phantom phy at id 31 */ | |
1934 | lp->phycount++; | |
1935 | lp->phymask |= (1 << i); | |
1936 | lp->mii_if.phy_id = i; | |
1937 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1938 | printk(KERN_INFO PFX | |
1939 | "Found PHY %04x:%04x at address %d.\n", | |
1940 | id1, id2, i); | |
1941 | } | |
1942 | lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); | |
1943 | if (lp->phycount > 1) { | |
1944 | lp->options |= PCNET32_PORT_MII; | |
1945 | } | |
1da177e4 | 1946 | } |
4a5e8e29 JG |
1947 | |
1948 | init_timer(&lp->watchdog_timer); | |
1949 | lp->watchdog_timer.data = (unsigned long)dev; | |
1950 | lp->watchdog_timer.function = (void *)&pcnet32_watchdog; | |
1951 | ||
1952 | /* The PCNET32-specific entries in the device structure. */ | |
3bc124dd | 1953 | dev->netdev_ops = &pcnet32_netdev_ops; |
4a5e8e29 | 1954 | dev->ethtool_ops = &pcnet32_ethtool_ops; |
4a5e8e29 | 1955 | dev->watchdog_timeo = (5 * HZ); |
1da177e4 | 1956 | |
4a5e8e29 JG |
1957 | /* Fill in the generic fields of the device structure. */ |
1958 | if (register_netdev(dev)) | |
1959 | goto err_free_ring; | |
1960 | ||
1961 | if (pdev) { | |
1962 | pci_set_drvdata(pdev, dev); | |
1963 | } else { | |
1964 | lp->next = pcnet32_dev; | |
1965 | pcnet32_dev = dev; | |
1966 | } | |
1967 | ||
1968 | if (pcnet32_debug & NETIF_MSG_PROBE) | |
1969 | printk(KERN_INFO "%s: registered as %s\n", dev->name, lp->name); | |
1970 | cards_found++; | |
1971 | ||
1972 | /* enable LED writes */ | |
1973 | a->write_bcr(ioaddr, 2, a->read_bcr(ioaddr, 2) | 0x1000); | |
1da177e4 | 1974 | |
4a5e8e29 JG |
1975 | return 0; |
1976 | ||
1977 | err_free_ring: | |
1978 | pcnet32_free_ring(dev); | |
1979 | err_free_consistent: | |
7d2e3cb7 | 1980 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
6ecb7667 | 1981 | lp->init_block, lp->init_dma_addr); |
4a5e8e29 JG |
1982 | err_free_netdev: |
1983 | free_netdev(dev); | |
1984 | err_release_region: | |
1985 | release_region(ioaddr, PCNET32_TOTAL_SIZE); | |
1986 | return ret; | |
1987 | } | |
1da177e4 | 1988 | |
a88c844c | 1989 | /* if any allocation fails, caller must also call pcnet32_free_ring */ |
b166cfba | 1990 | static int pcnet32_alloc_ring(struct net_device *dev, const char *name) |
eabf0415 | 1991 | { |
1e56a4b4 | 1992 | struct pcnet32_private *lp = netdev_priv(dev); |
eabf0415 | 1993 | |
4a5e8e29 JG |
1994 | lp->tx_ring = pci_alloc_consistent(lp->pci_dev, |
1995 | sizeof(struct pcnet32_tx_head) * | |
1996 | lp->tx_ring_size, | |
1997 | &lp->tx_ring_dma_addr); | |
1998 | if (lp->tx_ring == NULL) { | |
12fa30f3 | 1999 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2000 | printk("\n" KERN_ERR PFX |
2001 | "%s: Consistent memory allocation failed.\n", | |
2002 | name); | |
2003 | return -ENOMEM; | |
2004 | } | |
eabf0415 | 2005 | |
4a5e8e29 JG |
2006 | lp->rx_ring = pci_alloc_consistent(lp->pci_dev, |
2007 | sizeof(struct pcnet32_rx_head) * | |
2008 | lp->rx_ring_size, | |
2009 | &lp->rx_ring_dma_addr); | |
2010 | if (lp->rx_ring == NULL) { | |
12fa30f3 | 2011 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2012 | printk("\n" KERN_ERR PFX |
2013 | "%s: Consistent memory allocation failed.\n", | |
2014 | name); | |
2015 | return -ENOMEM; | |
2016 | } | |
eabf0415 | 2017 | |
12fa30f3 | 2018 | lp->tx_dma_addr = kcalloc(lp->tx_ring_size, sizeof(dma_addr_t), |
4a5e8e29 JG |
2019 | GFP_ATOMIC); |
2020 | if (!lp->tx_dma_addr) { | |
12fa30f3 | 2021 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2022 | printk("\n" KERN_ERR PFX |
2023 | "%s: Memory allocation failed.\n", name); | |
2024 | return -ENOMEM; | |
2025 | } | |
4a5e8e29 | 2026 | |
12fa30f3 | 2027 | lp->rx_dma_addr = kcalloc(lp->rx_ring_size, sizeof(dma_addr_t), |
4a5e8e29 JG |
2028 | GFP_ATOMIC); |
2029 | if (!lp->rx_dma_addr) { | |
12fa30f3 | 2030 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2031 | printk("\n" KERN_ERR PFX |
2032 | "%s: Memory allocation failed.\n", name); | |
2033 | return -ENOMEM; | |
2034 | } | |
4a5e8e29 | 2035 | |
12fa30f3 | 2036 | lp->tx_skbuff = kcalloc(lp->tx_ring_size, sizeof(struct sk_buff *), |
4a5e8e29 JG |
2037 | GFP_ATOMIC); |
2038 | if (!lp->tx_skbuff) { | |
12fa30f3 | 2039 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2040 | printk("\n" KERN_ERR PFX |
2041 | "%s: Memory allocation failed.\n", name); | |
2042 | return -ENOMEM; | |
2043 | } | |
4a5e8e29 | 2044 | |
12fa30f3 | 2045 | lp->rx_skbuff = kcalloc(lp->rx_ring_size, sizeof(struct sk_buff *), |
4a5e8e29 JG |
2046 | GFP_ATOMIC); |
2047 | if (!lp->rx_skbuff) { | |
12fa30f3 | 2048 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2049 | printk("\n" KERN_ERR PFX |
2050 | "%s: Memory allocation failed.\n", name); | |
2051 | return -ENOMEM; | |
2052 | } | |
4a5e8e29 JG |
2053 | |
2054 | return 0; | |
2055 | } | |
eabf0415 HWL |
2056 | |
2057 | static void pcnet32_free_ring(struct net_device *dev) | |
2058 | { | |
1e56a4b4 | 2059 | struct pcnet32_private *lp = netdev_priv(dev); |
eabf0415 | 2060 | |
4a5e8e29 JG |
2061 | kfree(lp->tx_skbuff); |
2062 | lp->tx_skbuff = NULL; | |
eabf0415 | 2063 | |
4a5e8e29 JG |
2064 | kfree(lp->rx_skbuff); |
2065 | lp->rx_skbuff = NULL; | |
eabf0415 | 2066 | |
4a5e8e29 JG |
2067 | kfree(lp->tx_dma_addr); |
2068 | lp->tx_dma_addr = NULL; | |
eabf0415 | 2069 | |
4a5e8e29 JG |
2070 | kfree(lp->rx_dma_addr); |
2071 | lp->rx_dma_addr = NULL; | |
eabf0415 | 2072 | |
4a5e8e29 JG |
2073 | if (lp->tx_ring) { |
2074 | pci_free_consistent(lp->pci_dev, | |
2075 | sizeof(struct pcnet32_tx_head) * | |
2076 | lp->tx_ring_size, lp->tx_ring, | |
2077 | lp->tx_ring_dma_addr); | |
2078 | lp->tx_ring = NULL; | |
2079 | } | |
eabf0415 | 2080 | |
4a5e8e29 JG |
2081 | if (lp->rx_ring) { |
2082 | pci_free_consistent(lp->pci_dev, | |
2083 | sizeof(struct pcnet32_rx_head) * | |
2084 | lp->rx_ring_size, lp->rx_ring, | |
2085 | lp->rx_ring_dma_addr); | |
2086 | lp->rx_ring = NULL; | |
2087 | } | |
eabf0415 HWL |
2088 | } |
2089 | ||
4a5e8e29 | 2090 | static int pcnet32_open(struct net_device *dev) |
1da177e4 | 2091 | { |
1e56a4b4 | 2092 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2093 | unsigned long ioaddr = dev->base_addr; |
2094 | u16 val; | |
2095 | int i; | |
2096 | int rc; | |
2097 | unsigned long flags; | |
2098 | ||
2099 | if (request_irq(dev->irq, &pcnet32_interrupt, | |
1fb9df5d | 2100 | lp->shared_irq ? IRQF_SHARED : 0, dev->name, |
4a5e8e29 JG |
2101 | (void *)dev)) { |
2102 | return -EAGAIN; | |
2103 | } | |
2104 | ||
2105 | spin_lock_irqsave(&lp->lock, flags); | |
2106 | /* Check for a valid station address */ | |
2107 | if (!is_valid_ether_addr(dev->dev_addr)) { | |
2108 | rc = -EINVAL; | |
2109 | goto err_free_irq; | |
2110 | } | |
2111 | ||
2112 | /* Reset the PCNET32 */ | |
2113 | lp->a.reset(ioaddr); | |
2114 | ||
2115 | /* switch pcnet32 to 32bit mode */ | |
2116 | lp->a.write_bcr(ioaddr, 20, 2); | |
2117 | ||
2118 | if (netif_msg_ifup(lp)) | |
2119 | printk(KERN_DEBUG | |
2120 | "%s: pcnet32_open() irq %d tx/rx rings %#x/%#x init %#x.\n", | |
2121 | dev->name, dev->irq, (u32) (lp->tx_ring_dma_addr), | |
2122 | (u32) (lp->rx_ring_dma_addr), | |
6ecb7667 | 2123 | (u32) (lp->init_dma_addr)); |
4a5e8e29 JG |
2124 | |
2125 | /* set/reset autoselect bit */ | |
2126 | val = lp->a.read_bcr(ioaddr, 2) & ~2; | |
2127 | if (lp->options & PCNET32_PORT_ASEL) | |
1da177e4 | 2128 | val |= 2; |
4a5e8e29 JG |
2129 | lp->a.write_bcr(ioaddr, 2, val); |
2130 | ||
2131 | /* handle full duplex setting */ | |
2132 | if (lp->mii_if.full_duplex) { | |
2133 | val = lp->a.read_bcr(ioaddr, 9) & ~3; | |
2134 | if (lp->options & PCNET32_PORT_FD) { | |
2135 | val |= 1; | |
2136 | if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) | |
2137 | val |= 2; | |
2138 | } else if (lp->options & PCNET32_PORT_ASEL) { | |
2139 | /* workaround of xSeries250, turn on for 79C975 only */ | |
8d916266 | 2140 | if (lp->chip_version == 0x2627) |
4a5e8e29 JG |
2141 | val |= 3; |
2142 | } | |
2143 | lp->a.write_bcr(ioaddr, 9, val); | |
2144 | } | |
2145 | ||
2146 | /* set/reset GPSI bit in test register */ | |
2147 | val = lp->a.read_csr(ioaddr, 124) & ~0x10; | |
2148 | if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) | |
2149 | val |= 0x10; | |
2150 | lp->a.write_csr(ioaddr, 124, val); | |
2151 | ||
2152 | /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ | |
2153 | if (lp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_AT && | |
2964bbd7 DF |
2154 | (lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2700FX || |
2155 | lp->pci_dev->subsystem_device == PCI_SUBDEVICE_ID_AT_2701FX)) { | |
ac62ef04 | 2156 | if (lp->options & PCNET32_PORT_ASEL) { |
4a5e8e29 JG |
2157 | lp->options = PCNET32_PORT_FD | PCNET32_PORT_100; |
2158 | if (netif_msg_link(lp)) | |
2159 | printk(KERN_DEBUG | |
2160 | "%s: Setting 100Mb-Full Duplex.\n", | |
2161 | dev->name); | |
2162 | } | |
2163 | } | |
2164 | if (lp->phycount < 2) { | |
2165 | /* | |
2166 | * 24 Jun 2004 according AMD, in order to change the PHY, | |
2167 | * DANAS (or DISPM for 79C976) must be set; then select the speed, | |
2168 | * duplex, and/or enable auto negotiation, and clear DANAS | |
2169 | */ | |
2170 | if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { | |
2171 | lp->a.write_bcr(ioaddr, 32, | |
2172 | lp->a.read_bcr(ioaddr, 32) | 0x0080); | |
2173 | /* disable Auto Negotiation, set 10Mpbs, HD */ | |
2174 | val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; | |
2175 | if (lp->options & PCNET32_PORT_FD) | |
2176 | val |= 0x10; | |
2177 | if (lp->options & PCNET32_PORT_100) | |
2178 | val |= 0x08; | |
2179 | lp->a.write_bcr(ioaddr, 32, val); | |
2180 | } else { | |
2181 | if (lp->options & PCNET32_PORT_ASEL) { | |
2182 | lp->a.write_bcr(ioaddr, 32, | |
2183 | lp->a.read_bcr(ioaddr, | |
2184 | 32) | 0x0080); | |
2185 | /* enable auto negotiate, setup, disable fd */ | |
2186 | val = lp->a.read_bcr(ioaddr, 32) & ~0x98; | |
2187 | val |= 0x20; | |
2188 | lp->a.write_bcr(ioaddr, 32, val); | |
2189 | } | |
2190 | } | |
2191 | } else { | |
2192 | int first_phy = -1; | |
2193 | u16 bmcr; | |
2194 | u32 bcr9; | |
2195 | struct ethtool_cmd ecmd; | |
2196 | ||
2197 | /* | |
2198 | * There is really no good other way to handle multiple PHYs | |
2199 | * other than turning off all automatics | |
2200 | */ | |
2201 | val = lp->a.read_bcr(ioaddr, 2); | |
2202 | lp->a.write_bcr(ioaddr, 2, val & ~2); | |
2203 | val = lp->a.read_bcr(ioaddr, 32); | |
2204 | lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ | |
2205 | ||
2206 | if (!(lp->options & PCNET32_PORT_ASEL)) { | |
2207 | /* setup ecmd */ | |
2208 | ecmd.port = PORT_MII; | |
2209 | ecmd.transceiver = XCVR_INTERNAL; | |
2210 | ecmd.autoneg = AUTONEG_DISABLE; | |
2211 | ecmd.speed = | |
2212 | lp-> | |
2213 | options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10; | |
2214 | bcr9 = lp->a.read_bcr(ioaddr, 9); | |
2215 | ||
2216 | if (lp->options & PCNET32_PORT_FD) { | |
2217 | ecmd.duplex = DUPLEX_FULL; | |
2218 | bcr9 |= (1 << 0); | |
2219 | } else { | |
2220 | ecmd.duplex = DUPLEX_HALF; | |
2221 | bcr9 |= ~(1 << 0); | |
2222 | } | |
2223 | lp->a.write_bcr(ioaddr, 9, bcr9); | |
ac62ef04 | 2224 | } |
4a5e8e29 JG |
2225 | |
2226 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { | |
2227 | if (lp->phymask & (1 << i)) { | |
2228 | /* isolate all but the first PHY */ | |
2229 | bmcr = mdio_read(dev, i, MII_BMCR); | |
2230 | if (first_phy == -1) { | |
2231 | first_phy = i; | |
2232 | mdio_write(dev, i, MII_BMCR, | |
2233 | bmcr & ~BMCR_ISOLATE); | |
2234 | } else { | |
2235 | mdio_write(dev, i, MII_BMCR, | |
2236 | bmcr | BMCR_ISOLATE); | |
2237 | } | |
2238 | /* use mii_ethtool_sset to setup PHY */ | |
2239 | lp->mii_if.phy_id = i; | |
2240 | ecmd.phy_address = i; | |
2241 | if (lp->options & PCNET32_PORT_ASEL) { | |
2242 | mii_ethtool_gset(&lp->mii_if, &ecmd); | |
2243 | ecmd.autoneg = AUTONEG_ENABLE; | |
2244 | } | |
2245 | mii_ethtool_sset(&lp->mii_if, &ecmd); | |
2246 | } | |
2247 | } | |
2248 | lp->mii_if.phy_id = first_phy; | |
2249 | if (netif_msg_link(lp)) | |
2250 | printk(KERN_INFO "%s: Using PHY number %d.\n", | |
2251 | dev->name, first_phy); | |
2252 | } | |
1da177e4 LT |
2253 | |
2254 | #ifdef DO_DXSUFLO | |
4a5e8e29 | 2255 | if (lp->dxsuflo) { /* Disable transmit stop on underflow */ |
b368a3fb | 2256 | val = lp->a.read_csr(ioaddr, CSR3); |
4a5e8e29 | 2257 | val |= 0x40; |
b368a3fb | 2258 | lp->a.write_csr(ioaddr, CSR3, val); |
4a5e8e29 | 2259 | } |
1da177e4 LT |
2260 | #endif |
2261 | ||
6ecb7667 | 2262 | lp->init_block->mode = |
3e33545b | 2263 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
4a5e8e29 JG |
2264 | pcnet32_load_multicast(dev); |
2265 | ||
2266 | if (pcnet32_init_ring(dev)) { | |
2267 | rc = -ENOMEM; | |
2268 | goto err_free_ring; | |
2269 | } | |
2270 | ||
bea3348e | 2271 | napi_enable(&lp->napi); |
bea3348e | 2272 | |
4a5e8e29 | 2273 | /* Re-initialize the PCNET32, and start it when done. */ |
6ecb7667 DF |
2274 | lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); |
2275 | lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); | |
4a5e8e29 | 2276 | |
b368a3fb DF |
2277 | lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ |
2278 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); | |
4a5e8e29 JG |
2279 | |
2280 | netif_start_queue(dev); | |
2281 | ||
8d916266 DF |
2282 | if (lp->chip_version >= PCNET32_79C970A) { |
2283 | /* Print the link status and start the watchdog */ | |
2284 | pcnet32_check_media(dev, 1); | |
283a21d3 | 2285 | mod_timer(&lp->watchdog_timer, PCNET32_WATCHDOG_TIMEOUT); |
8d916266 | 2286 | } |
4a5e8e29 JG |
2287 | |
2288 | i = 0; | |
2289 | while (i++ < 100) | |
b368a3fb | 2290 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
4a5e8e29 JG |
2291 | break; |
2292 | /* | |
2293 | * We used to clear the InitDone bit, 0x0100, here but Mark Stockton | |
2294 | * reports that doing so triggers a bug in the '974. | |
2295 | */ | |
b368a3fb | 2296 | lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); |
4a5e8e29 JG |
2297 | |
2298 | if (netif_msg_ifup(lp)) | |
2299 | printk(KERN_DEBUG | |
2300 | "%s: pcnet32 open after %d ticks, init block %#x csr0 %4.4x.\n", | |
2301 | dev->name, i, | |
6ecb7667 | 2302 | (u32) (lp->init_dma_addr), |
b368a3fb | 2303 | lp->a.read_csr(ioaddr, CSR0)); |
4a5e8e29 JG |
2304 | |
2305 | spin_unlock_irqrestore(&lp->lock, flags); | |
2306 | ||
2307 | return 0; /* Always succeed */ | |
2308 | ||
2309 | err_free_ring: | |
2310 | /* free any allocated skbuffs */ | |
ac5bfe40 | 2311 | pcnet32_purge_rx_ring(dev); |
4a5e8e29 | 2312 | |
4a5e8e29 JG |
2313 | /* |
2314 | * Switch back to 16bit mode to avoid problems with dumb | |
2315 | * DOS packet driver after a warm reboot | |
2316 | */ | |
2317 | lp->a.write_bcr(ioaddr, 20, 4); | |
2318 | ||
2319 | err_free_irq: | |
2320 | spin_unlock_irqrestore(&lp->lock, flags); | |
2321 | free_irq(dev->irq, dev); | |
2322 | return rc; | |
1da177e4 LT |
2323 | } |
2324 | ||
2325 | /* | |
2326 | * The LANCE has been halted for one reason or another (busmaster memory | |
2327 | * arbitration error, Tx FIFO underflow, driver stopped it to reconfigure, | |
2328 | * etc.). Modern LANCE variants always reload their ring-buffer | |
2329 | * configuration when restarted, so we must reinitialize our ring | |
2330 | * context before restarting. As part of this reinitialization, | |
2331 | * find all packets still on the Tx ring and pretend that they had been | |
2332 | * sent (in effect, drop the packets on the floor) - the higher-level | |
2333 | * protocols will time out and retransmit. It'd be better to shuffle | |
2334 | * these skbs to a temp list and then actually re-Tx them after | |
2335 | * restarting the chip, but I'm too lazy to do so right now. dplatt@3do.com | |
2336 | */ | |
2337 | ||
4a5e8e29 | 2338 | static void pcnet32_purge_tx_ring(struct net_device *dev) |
1da177e4 | 2339 | { |
1e56a4b4 | 2340 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 2341 | int i; |
1da177e4 | 2342 | |
4a5e8e29 JG |
2343 | for (i = 0; i < lp->tx_ring_size; i++) { |
2344 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ | |
2345 | wmb(); /* Make sure adapter sees owner change */ | |
2346 | if (lp->tx_skbuff[i]) { | |
2347 | pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[i], | |
2348 | lp->tx_skbuff[i]->len, | |
2349 | PCI_DMA_TODEVICE); | |
2350 | dev_kfree_skb_any(lp->tx_skbuff[i]); | |
2351 | } | |
2352 | lp->tx_skbuff[i] = NULL; | |
2353 | lp->tx_dma_addr[i] = 0; | |
2354 | } | |
2355 | } | |
1da177e4 LT |
2356 | |
2357 | /* Initialize the PCNET32 Rx and Tx rings. */ | |
4a5e8e29 | 2358 | static int pcnet32_init_ring(struct net_device *dev) |
1da177e4 | 2359 | { |
1e56a4b4 | 2360 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2361 | int i; |
2362 | ||
2363 | lp->tx_full = 0; | |
2364 | lp->cur_rx = lp->cur_tx = 0; | |
2365 | lp->dirty_rx = lp->dirty_tx = 0; | |
2366 | ||
2367 | for (i = 0; i < lp->rx_ring_size; i++) { | |
2368 | struct sk_buff *rx_skbuff = lp->rx_skbuff[i]; | |
2369 | if (rx_skbuff == NULL) { | |
2370 | if (! | |
2371 | (rx_skbuff = lp->rx_skbuff[i] = | |
232c5640 | 2372 | dev_alloc_skb(PKT_BUF_SKB))) { |
4a5e8e29 | 2373 | /* there is not much, we can do at this point */ |
b368a3fb | 2374 | if (netif_msg_drv(lp)) |
4a5e8e29 JG |
2375 | printk(KERN_ERR |
2376 | "%s: pcnet32_init_ring dev_alloc_skb failed.\n", | |
2377 | dev->name); | |
2378 | return -1; | |
2379 | } | |
232c5640 | 2380 | skb_reserve(rx_skbuff, NET_IP_ALIGN); |
4a5e8e29 JG |
2381 | } |
2382 | ||
2383 | rmb(); | |
2384 | if (lp->rx_dma_addr[i] == 0) | |
2385 | lp->rx_dma_addr[i] = | |
2386 | pci_map_single(lp->pci_dev, rx_skbuff->data, | |
232c5640 | 2387 | PKT_BUF_SIZE, PCI_DMA_FROMDEVICE); |
3e33545b | 2388 | lp->rx_ring[i].base = cpu_to_le32(lp->rx_dma_addr[i]); |
232c5640 | 2389 | lp->rx_ring[i].buf_length = cpu_to_le16(NEG_BUF_SIZE); |
4a5e8e29 | 2390 | wmb(); /* Make sure owner changes after all others are visible */ |
3e33545b | 2391 | lp->rx_ring[i].status = cpu_to_le16(0x8000); |
4a5e8e29 JG |
2392 | } |
2393 | /* The Tx buffer address is filled in as needed, but we do need to clear | |
2394 | * the upper ownership bit. */ | |
2395 | for (i = 0; i < lp->tx_ring_size; i++) { | |
2396 | lp->tx_ring[i].status = 0; /* CPU owns buffer */ | |
2397 | wmb(); /* Make sure adapter sees owner change */ | |
2398 | lp->tx_ring[i].base = 0; | |
2399 | lp->tx_dma_addr[i] = 0; | |
2400 | } | |
2401 | ||
6ecb7667 | 2402 | lp->init_block->tlen_rlen = |
3e33545b | 2403 | cpu_to_le16(lp->tx_len_bits | lp->rx_len_bits); |
4a5e8e29 | 2404 | for (i = 0; i < 6; i++) |
6ecb7667 | 2405 | lp->init_block->phys_addr[i] = dev->dev_addr[i]; |
3e33545b AV |
2406 | lp->init_block->rx_ring = cpu_to_le32(lp->rx_ring_dma_addr); |
2407 | lp->init_block->tx_ring = cpu_to_le32(lp->tx_ring_dma_addr); | |
4a5e8e29 JG |
2408 | wmb(); /* Make sure all changes are visible */ |
2409 | return 0; | |
1da177e4 LT |
2410 | } |
2411 | ||
2412 | /* the pcnet32 has been issued a stop or reset. Wait for the stop bit | |
2413 | * then flush the pending transmit operations, re-initialize the ring, | |
2414 | * and tell the chip to initialize. | |
2415 | */ | |
4a5e8e29 | 2416 | static void pcnet32_restart(struct net_device *dev, unsigned int csr0_bits) |
1da177e4 | 2417 | { |
1e56a4b4 | 2418 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2419 | unsigned long ioaddr = dev->base_addr; |
2420 | int i; | |
1da177e4 | 2421 | |
4a5e8e29 JG |
2422 | /* wait for stop */ |
2423 | for (i = 0; i < 100; i++) | |
b368a3fb | 2424 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) |
4a5e8e29 | 2425 | break; |
1da177e4 | 2426 | |
4a5e8e29 JG |
2427 | if (i >= 100 && netif_msg_drv(lp)) |
2428 | printk(KERN_ERR | |
2429 | "%s: pcnet32_restart timed out waiting for stop.\n", | |
2430 | dev->name); | |
1da177e4 | 2431 | |
4a5e8e29 JG |
2432 | pcnet32_purge_tx_ring(dev); |
2433 | if (pcnet32_init_ring(dev)) | |
2434 | return; | |
1da177e4 | 2435 | |
4a5e8e29 | 2436 | /* ReInit Ring */ |
b368a3fb | 2437 | lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); |
4a5e8e29 JG |
2438 | i = 0; |
2439 | while (i++ < 1000) | |
b368a3fb | 2440 | if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) |
4a5e8e29 | 2441 | break; |
1da177e4 | 2442 | |
b368a3fb | 2443 | lp->a.write_csr(ioaddr, CSR0, csr0_bits); |
1da177e4 LT |
2444 | } |
2445 | ||
4a5e8e29 | 2446 | static void pcnet32_tx_timeout(struct net_device *dev) |
1da177e4 | 2447 | { |
1e56a4b4 | 2448 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2449 | unsigned long ioaddr = dev->base_addr, flags; |
2450 | ||
2451 | spin_lock_irqsave(&lp->lock, flags); | |
2452 | /* Transmitter timeout, serious problems. */ | |
2453 | if (pcnet32_debug & NETIF_MSG_DRV) | |
2454 | printk(KERN_ERR | |
2455 | "%s: transmit timed out, status %4.4x, resetting.\n", | |
b368a3fb DF |
2456 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
2457 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); | |
4f1e5ba0 | 2458 | dev->stats.tx_errors++; |
4a5e8e29 JG |
2459 | if (netif_msg_tx_err(lp)) { |
2460 | int i; | |
2461 | printk(KERN_DEBUG | |
2462 | " Ring data dump: dirty_tx %d cur_tx %d%s cur_rx %d.", | |
2463 | lp->dirty_tx, lp->cur_tx, lp->tx_full ? " (full)" : "", | |
2464 | lp->cur_rx); | |
2465 | for (i = 0; i < lp->rx_ring_size; i++) | |
2466 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", | |
2467 | le32_to_cpu(lp->rx_ring[i].base), | |
2468 | (-le16_to_cpu(lp->rx_ring[i].buf_length)) & | |
2469 | 0xffff, le32_to_cpu(lp->rx_ring[i].msg_length), | |
2470 | le16_to_cpu(lp->rx_ring[i].status)); | |
2471 | for (i = 0; i < lp->tx_ring_size; i++) | |
2472 | printk("%s %08x %04x %08x %04x", i & 1 ? "" : "\n ", | |
2473 | le32_to_cpu(lp->tx_ring[i].base), | |
2474 | (-le16_to_cpu(lp->tx_ring[i].length)) & 0xffff, | |
2475 | le32_to_cpu(lp->tx_ring[i].misc), | |
2476 | le16_to_cpu(lp->tx_ring[i].status)); | |
2477 | printk("\n"); | |
2478 | } | |
b368a3fb | 2479 | pcnet32_restart(dev, CSR0_NORMAL); |
1da177e4 | 2480 | |
4a5e8e29 JG |
2481 | dev->trans_start = jiffies; |
2482 | netif_wake_queue(dev); | |
1da177e4 | 2483 | |
4a5e8e29 JG |
2484 | spin_unlock_irqrestore(&lp->lock, flags); |
2485 | } | |
2486 | ||
2487 | static int pcnet32_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1da177e4 | 2488 | { |
1e56a4b4 | 2489 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2490 | unsigned long ioaddr = dev->base_addr; |
2491 | u16 status; | |
2492 | int entry; | |
2493 | unsigned long flags; | |
1da177e4 | 2494 | |
4a5e8e29 | 2495 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 2496 | |
4a5e8e29 JG |
2497 | if (netif_msg_tx_queued(lp)) { |
2498 | printk(KERN_DEBUG | |
2499 | "%s: pcnet32_start_xmit() called, csr0 %4.4x.\n", | |
b368a3fb | 2500 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
4a5e8e29 | 2501 | } |
1da177e4 | 2502 | |
4a5e8e29 JG |
2503 | /* Default status -- will not enable Successful-TxDone |
2504 | * interrupt when that option is available to us. | |
2505 | */ | |
2506 | status = 0x8300; | |
1da177e4 | 2507 | |
4a5e8e29 | 2508 | /* Fill in a Tx ring entry */ |
1da177e4 | 2509 | |
4a5e8e29 JG |
2510 | /* Mask to ring buffer boundary. */ |
2511 | entry = lp->cur_tx & lp->tx_mod_mask; | |
1da177e4 | 2512 | |
4a5e8e29 JG |
2513 | /* Caution: the write order is important here, set the status |
2514 | * with the "ownership" bits last. */ | |
1da177e4 | 2515 | |
3e33545b | 2516 | lp->tx_ring[entry].length = cpu_to_le16(-skb->len); |
1da177e4 | 2517 | |
4a5e8e29 | 2518 | lp->tx_ring[entry].misc = 0x00000000; |
1da177e4 | 2519 | |
4a5e8e29 JG |
2520 | lp->tx_skbuff[entry] = skb; |
2521 | lp->tx_dma_addr[entry] = | |
2522 | pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE); | |
3e33545b | 2523 | lp->tx_ring[entry].base = cpu_to_le32(lp->tx_dma_addr[entry]); |
4a5e8e29 | 2524 | wmb(); /* Make sure owner changes after all others are visible */ |
3e33545b | 2525 | lp->tx_ring[entry].status = cpu_to_le16(status); |
1da177e4 | 2526 | |
4a5e8e29 | 2527 | lp->cur_tx++; |
4f1e5ba0 | 2528 | dev->stats.tx_bytes += skb->len; |
1da177e4 | 2529 | |
4a5e8e29 | 2530 | /* Trigger an immediate send poll. */ |
b368a3fb | 2531 | lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); |
1da177e4 | 2532 | |
4a5e8e29 | 2533 | dev->trans_start = jiffies; |
1da177e4 | 2534 | |
4a5e8e29 JG |
2535 | if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { |
2536 | lp->tx_full = 1; | |
2537 | netif_stop_queue(dev); | |
2538 | } | |
2539 | spin_unlock_irqrestore(&lp->lock, flags); | |
2540 | return 0; | |
1da177e4 LT |
2541 | } |
2542 | ||
2543 | /* The PCNET32 interrupt handler. */ | |
2544 | static irqreturn_t | |
7d12e780 | 2545 | pcnet32_interrupt(int irq, void *dev_id) |
1da177e4 | 2546 | { |
4a5e8e29 JG |
2547 | struct net_device *dev = dev_id; |
2548 | struct pcnet32_private *lp; | |
2549 | unsigned long ioaddr; | |
5c99346a | 2550 | u16 csr0; |
4a5e8e29 | 2551 | int boguscnt = max_interrupt_work; |
4a5e8e29 | 2552 | |
4a5e8e29 | 2553 | ioaddr = dev->base_addr; |
1e56a4b4 | 2554 | lp = netdev_priv(dev); |
1da177e4 | 2555 | |
4a5e8e29 JG |
2556 | spin_lock(&lp->lock); |
2557 | ||
3904c324 DF |
2558 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
2559 | while ((csr0 & 0x8f00) && --boguscnt >= 0) { | |
4a5e8e29 JG |
2560 | if (csr0 == 0xffff) { |
2561 | break; /* PCMCIA remove happened */ | |
2562 | } | |
2563 | /* Acknowledge all of the current interrupt sources ASAP. */ | |
3904c324 | 2564 | lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); |
4a5e8e29 | 2565 | |
4a5e8e29 JG |
2566 | if (netif_msg_intr(lp)) |
2567 | printk(KERN_DEBUG | |
2568 | "%s: interrupt csr0=%#2.2x new csr=%#2.2x.\n", | |
3904c324 | 2569 | dev->name, csr0, lp->a.read_csr(ioaddr, CSR0)); |
4a5e8e29 | 2570 | |
4a5e8e29 JG |
2571 | /* Log misc errors. */ |
2572 | if (csr0 & 0x4000) | |
4f1e5ba0 | 2573 | dev->stats.tx_errors++; /* Tx babble. */ |
4a5e8e29 JG |
2574 | if (csr0 & 0x1000) { |
2575 | /* | |
3904c324 DF |
2576 | * This happens when our receive ring is full. This |
2577 | * shouldn't be a problem as we will see normal rx | |
2578 | * interrupts for the frames in the receive ring. But | |
2579 | * there are some PCI chipsets (I can reproduce this | |
2580 | * on SP3G with Intel saturn chipset) which have | |
2581 | * sometimes problems and will fill up the receive | |
2582 | * ring with error descriptors. In this situation we | |
2583 | * don't get a rx interrupt, but a missed frame | |
7de745e5 | 2584 | * interrupt sooner or later. |
4a5e8e29 | 2585 | */ |
4f1e5ba0 | 2586 | dev->stats.rx_errors++; /* Missed a Rx frame. */ |
4a5e8e29 JG |
2587 | } |
2588 | if (csr0 & 0x0800) { | |
2589 | if (netif_msg_drv(lp)) | |
2590 | printk(KERN_ERR | |
2591 | "%s: Bus master arbitration failure, status %4.4x.\n", | |
2592 | dev->name, csr0); | |
2593 | /* unlike for the lance, there is no restart needed */ | |
1da177e4 | 2594 | } |
288379f0 | 2595 | if (napi_schedule_prep(&lp->napi)) { |
7de745e5 DF |
2596 | u16 val; |
2597 | /* set interrupt masks */ | |
2598 | val = lp->a.read_csr(ioaddr, CSR3); | |
2599 | val |= 0x5f00; | |
2600 | lp->a.write_csr(ioaddr, CSR3, val); | |
2601 | mmiowb(); | |
288379f0 | 2602 | __napi_schedule(&lp->napi); |
7de745e5 DF |
2603 | break; |
2604 | } | |
3904c324 | 2605 | csr0 = lp->a.read_csr(ioaddr, CSR0); |
4a5e8e29 JG |
2606 | } |
2607 | ||
4a5e8e29 JG |
2608 | if (netif_msg_intr(lp)) |
2609 | printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n", | |
b368a3fb | 2610 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
4a5e8e29 JG |
2611 | |
2612 | spin_unlock(&lp->lock); | |
2613 | ||
2614 | return IRQ_HANDLED; | |
1da177e4 LT |
2615 | } |
2616 | ||
4a5e8e29 | 2617 | static int pcnet32_close(struct net_device *dev) |
1da177e4 | 2618 | { |
4a5e8e29 | 2619 | unsigned long ioaddr = dev->base_addr; |
1e56a4b4 | 2620 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 2621 | unsigned long flags; |
1da177e4 | 2622 | |
4a5e8e29 | 2623 | del_timer_sync(&lp->watchdog_timer); |
1da177e4 | 2624 | |
4a5e8e29 | 2625 | netif_stop_queue(dev); |
bea3348e | 2626 | napi_disable(&lp->napi); |
1da177e4 | 2627 | |
4a5e8e29 | 2628 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 2629 | |
4f1e5ba0 | 2630 | dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
1da177e4 | 2631 | |
4a5e8e29 JG |
2632 | if (netif_msg_ifdown(lp)) |
2633 | printk(KERN_DEBUG | |
2634 | "%s: Shutting down ethercard, status was %2.2x.\n", | |
b368a3fb | 2635 | dev->name, lp->a.read_csr(ioaddr, CSR0)); |
1da177e4 | 2636 | |
4a5e8e29 | 2637 | /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ |
b368a3fb | 2638 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
1da177e4 | 2639 | |
4a5e8e29 JG |
2640 | /* |
2641 | * Switch back to 16bit mode to avoid problems with dumb | |
2642 | * DOS packet driver after a warm reboot | |
2643 | */ | |
2644 | lp->a.write_bcr(ioaddr, 20, 4); | |
1da177e4 | 2645 | |
4a5e8e29 | 2646 | spin_unlock_irqrestore(&lp->lock, flags); |
1da177e4 | 2647 | |
4a5e8e29 | 2648 | free_irq(dev->irq, dev); |
1da177e4 | 2649 | |
4a5e8e29 | 2650 | spin_lock_irqsave(&lp->lock, flags); |
1da177e4 | 2651 | |
ac5bfe40 DF |
2652 | pcnet32_purge_rx_ring(dev); |
2653 | pcnet32_purge_tx_ring(dev); | |
1da177e4 | 2654 | |
4a5e8e29 | 2655 | spin_unlock_irqrestore(&lp->lock, flags); |
1da177e4 | 2656 | |
4a5e8e29 | 2657 | return 0; |
1da177e4 LT |
2658 | } |
2659 | ||
4a5e8e29 | 2660 | static struct net_device_stats *pcnet32_get_stats(struct net_device *dev) |
1da177e4 | 2661 | { |
1e56a4b4 | 2662 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 2663 | unsigned long ioaddr = dev->base_addr; |
4a5e8e29 JG |
2664 | unsigned long flags; |
2665 | ||
2666 | spin_lock_irqsave(&lp->lock, flags); | |
4f1e5ba0 | 2667 | dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); |
4a5e8e29 JG |
2668 | spin_unlock_irqrestore(&lp->lock, flags); |
2669 | ||
4f1e5ba0 | 2670 | return &dev->stats; |
1da177e4 LT |
2671 | } |
2672 | ||
2673 | /* taken from the sunlance driver, which it took from the depca driver */ | |
4a5e8e29 | 2674 | static void pcnet32_load_multicast(struct net_device *dev) |
1da177e4 | 2675 | { |
1e56a4b4 | 2676 | struct pcnet32_private *lp = netdev_priv(dev); |
6ecb7667 | 2677 | volatile struct pcnet32_init_block *ib = lp->init_block; |
3e33545b | 2678 | volatile __le16 *mcast_table = (__le16 *)ib->filter; |
4a5e8e29 | 2679 | struct dev_mc_list *dmi = dev->mc_list; |
df27f4a6 | 2680 | unsigned long ioaddr = dev->base_addr; |
4a5e8e29 JG |
2681 | char *addrs; |
2682 | int i; | |
2683 | u32 crc; | |
2684 | ||
2685 | /* set all multicast bits */ | |
2686 | if (dev->flags & IFF_ALLMULTI) { | |
3e33545b AV |
2687 | ib->filter[0] = cpu_to_le32(~0U); |
2688 | ib->filter[1] = cpu_to_le32(~0U); | |
df27f4a6 DF |
2689 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); |
2690 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); | |
2691 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); | |
2692 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); | |
4a5e8e29 JG |
2693 | return; |
2694 | } | |
2695 | /* clear the multicast filter */ | |
2696 | ib->filter[0] = 0; | |
2697 | ib->filter[1] = 0; | |
2698 | ||
2699 | /* Add addresses */ | |
2700 | for (i = 0; i < dev->mc_count; i++) { | |
2701 | addrs = dmi->dmi_addr; | |
2702 | dmi = dmi->next; | |
2703 | ||
2704 | /* multicast address? */ | |
2705 | if (!(*addrs & 1)) | |
2706 | continue; | |
2707 | ||
2708 | crc = ether_crc_le(6, addrs); | |
2709 | crc = crc >> 26; | |
3e33545b | 2710 | mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); |
4a5e8e29 | 2711 | } |
df27f4a6 DF |
2712 | for (i = 0; i < 4; i++) |
2713 | lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, | |
2714 | le16_to_cpu(mcast_table[i])); | |
1da177e4 | 2715 | return; |
1da177e4 LT |
2716 | } |
2717 | ||
1da177e4 LT |
2718 | /* |
2719 | * Set or clear the multicast filter for this adaptor. | |
2720 | */ | |
2721 | static void pcnet32_set_multicast_list(struct net_device *dev) | |
2722 | { | |
4a5e8e29 | 2723 | unsigned long ioaddr = dev->base_addr, flags; |
1e56a4b4 | 2724 | struct pcnet32_private *lp = netdev_priv(dev); |
df27f4a6 | 2725 | int csr15, suspended; |
4a5e8e29 JG |
2726 | |
2727 | spin_lock_irqsave(&lp->lock, flags); | |
df27f4a6 DF |
2728 | suspended = pcnet32_suspend(dev, &flags, 0); |
2729 | csr15 = lp->a.read_csr(ioaddr, CSR15); | |
4a5e8e29 JG |
2730 | if (dev->flags & IFF_PROMISC) { |
2731 | /* Log any net taps. */ | |
2732 | if (netif_msg_hw(lp)) | |
2733 | printk(KERN_INFO "%s: Promiscuous mode enabled.\n", | |
2734 | dev->name); | |
6ecb7667 | 2735 | lp->init_block->mode = |
3e33545b | 2736 | cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << |
4a5e8e29 | 2737 | 7); |
df27f4a6 | 2738 | lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); |
4a5e8e29 | 2739 | } else { |
6ecb7667 | 2740 | lp->init_block->mode = |
3e33545b | 2741 | cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); |
df27f4a6 | 2742 | lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); |
4a5e8e29 JG |
2743 | pcnet32_load_multicast(dev); |
2744 | } | |
2745 | ||
df27f4a6 DF |
2746 | if (suspended) { |
2747 | int csr5; | |
2748 | /* clear SUSPEND (SPND) - CSR5 bit 0 */ | |
2749 | csr5 = lp->a.read_csr(ioaddr, CSR5); | |
2750 | lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); | |
b368a3fb | 2751 | } else { |
df27f4a6 DF |
2752 | lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); |
2753 | pcnet32_restart(dev, CSR0_NORMAL); | |
2754 | netif_wake_queue(dev); | |
2755 | } | |
4a5e8e29 JG |
2756 | |
2757 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 LT |
2758 | } |
2759 | ||
2760 | /* This routine assumes that the lp->lock is held */ | |
2761 | static int mdio_read(struct net_device *dev, int phy_id, int reg_num) | |
2762 | { | |
1e56a4b4 | 2763 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2764 | unsigned long ioaddr = dev->base_addr; |
2765 | u16 val_out; | |
1da177e4 | 2766 | |
4a5e8e29 JG |
2767 | if (!lp->mii) |
2768 | return 0; | |
1da177e4 | 2769 | |
4a5e8e29 JG |
2770 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
2771 | val_out = lp->a.read_bcr(ioaddr, 34); | |
1da177e4 | 2772 | |
4a5e8e29 | 2773 | return val_out; |
1da177e4 LT |
2774 | } |
2775 | ||
2776 | /* This routine assumes that the lp->lock is held */ | |
2777 | static void mdio_write(struct net_device *dev, int phy_id, int reg_num, int val) | |
2778 | { | |
1e56a4b4 | 2779 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 2780 | unsigned long ioaddr = dev->base_addr; |
1da177e4 | 2781 | |
4a5e8e29 JG |
2782 | if (!lp->mii) |
2783 | return; | |
1da177e4 | 2784 | |
4a5e8e29 JG |
2785 | lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); |
2786 | lp->a.write_bcr(ioaddr, 34, val); | |
1da177e4 LT |
2787 | } |
2788 | ||
2789 | static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2790 | { | |
1e56a4b4 | 2791 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2792 | int rc; |
2793 | unsigned long flags; | |
1da177e4 | 2794 | |
4a5e8e29 JG |
2795 | /* SIOC[GS]MIIxxx ioctls */ |
2796 | if (lp->mii) { | |
2797 | spin_lock_irqsave(&lp->lock, flags); | |
2798 | rc = generic_mii_ioctl(&lp->mii_if, if_mii(rq), cmd, NULL); | |
2799 | spin_unlock_irqrestore(&lp->lock, flags); | |
2800 | } else { | |
2801 | rc = -EOPNOTSUPP; | |
2802 | } | |
1da177e4 | 2803 | |
4a5e8e29 | 2804 | return rc; |
1da177e4 LT |
2805 | } |
2806 | ||
ac62ef04 DF |
2807 | static int pcnet32_check_otherphy(struct net_device *dev) |
2808 | { | |
1e56a4b4 | 2809 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2810 | struct mii_if_info mii = lp->mii_if; |
2811 | u16 bmcr; | |
2812 | int i; | |
ac62ef04 | 2813 | |
4a5e8e29 JG |
2814 | for (i = 0; i < PCNET32_MAX_PHYS; i++) { |
2815 | if (i == lp->mii_if.phy_id) | |
2816 | continue; /* skip active phy */ | |
2817 | if (lp->phymask & (1 << i)) { | |
2818 | mii.phy_id = i; | |
2819 | if (mii_link_ok(&mii)) { | |
2820 | /* found PHY with active link */ | |
2821 | if (netif_msg_link(lp)) | |
2822 | printk(KERN_INFO | |
2823 | "%s: Using PHY number %d.\n", | |
2824 | dev->name, i); | |
2825 | ||
2826 | /* isolate inactive phy */ | |
2827 | bmcr = | |
2828 | mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); | |
2829 | mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, | |
2830 | bmcr | BMCR_ISOLATE); | |
2831 | ||
2832 | /* de-isolate new phy */ | |
2833 | bmcr = mdio_read(dev, i, MII_BMCR); | |
2834 | mdio_write(dev, i, MII_BMCR, | |
2835 | bmcr & ~BMCR_ISOLATE); | |
2836 | ||
2837 | /* set new phy address */ | |
2838 | lp->mii_if.phy_id = i; | |
2839 | return 1; | |
2840 | } | |
2841 | } | |
ac62ef04 | 2842 | } |
4a5e8e29 | 2843 | return 0; |
ac62ef04 DF |
2844 | } |
2845 | ||
2846 | /* | |
2847 | * Show the status of the media. Similar to mii_check_media however it | |
2848 | * correctly shows the link speed for all (tested) pcnet32 variants. | |
2849 | * Devices with no mii just report link state without speed. | |
2850 | * | |
2851 | * Caller is assumed to hold and release the lp->lock. | |
2852 | */ | |
2853 | ||
2854 | static void pcnet32_check_media(struct net_device *dev, int verbose) | |
2855 | { | |
1e56a4b4 | 2856 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2857 | int curr_link; |
2858 | int prev_link = netif_carrier_ok(dev) ? 1 : 0; | |
2859 | u32 bcr9; | |
2860 | ||
ac62ef04 | 2861 | if (lp->mii) { |
4a5e8e29 | 2862 | curr_link = mii_link_ok(&lp->mii_if); |
ac62ef04 | 2863 | } else { |
4a5e8e29 JG |
2864 | ulong ioaddr = dev->base_addr; /* card base I/O address */ |
2865 | curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); | |
2866 | } | |
2867 | if (!curr_link) { | |
2868 | if (prev_link || verbose) { | |
2869 | netif_carrier_off(dev); | |
2870 | if (netif_msg_link(lp)) | |
2871 | printk(KERN_INFO "%s: link down\n", dev->name); | |
2872 | } | |
2873 | if (lp->phycount > 1) { | |
2874 | curr_link = pcnet32_check_otherphy(dev); | |
2875 | prev_link = 0; | |
2876 | } | |
2877 | } else if (verbose || !prev_link) { | |
2878 | netif_carrier_on(dev); | |
2879 | if (lp->mii) { | |
2880 | if (netif_msg_link(lp)) { | |
2881 | struct ethtool_cmd ecmd; | |
2882 | mii_ethtool_gset(&lp->mii_if, &ecmd); | |
2883 | printk(KERN_INFO | |
2884 | "%s: link up, %sMbps, %s-duplex\n", | |
2885 | dev->name, | |
2886 | (ecmd.speed == SPEED_100) ? "100" : "10", | |
2887 | (ecmd.duplex == | |
2888 | DUPLEX_FULL) ? "full" : "half"); | |
2889 | } | |
2890 | bcr9 = lp->a.read_bcr(dev->base_addr, 9); | |
2891 | if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { | |
2892 | if (lp->mii_if.full_duplex) | |
2893 | bcr9 |= (1 << 0); | |
2894 | else | |
2895 | bcr9 &= ~(1 << 0); | |
2896 | lp->a.write_bcr(dev->base_addr, 9, bcr9); | |
2897 | } | |
2898 | } else { | |
2899 | if (netif_msg_link(lp)) | |
2900 | printk(KERN_INFO "%s: link up\n", dev->name); | |
2901 | } | |
ac62ef04 | 2902 | } |
ac62ef04 DF |
2903 | } |
2904 | ||
2905 | /* | |
2906 | * Check for loss of link and link establishment. | |
2907 | * Can not use mii_check_media because it does nothing if mode is forced. | |
2908 | */ | |
2909 | ||
1da177e4 LT |
2910 | static void pcnet32_watchdog(struct net_device *dev) |
2911 | { | |
1e56a4b4 | 2912 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 | 2913 | unsigned long flags; |
1da177e4 | 2914 | |
4a5e8e29 JG |
2915 | /* Print the link status if it has changed */ |
2916 | spin_lock_irqsave(&lp->lock, flags); | |
2917 | pcnet32_check_media(dev, 0); | |
2918 | spin_unlock_irqrestore(&lp->lock, flags); | |
1da177e4 | 2919 | |
283a21d3 | 2920 | mod_timer(&lp->watchdog_timer, round_jiffies(PCNET32_WATCHDOG_TIMEOUT)); |
1da177e4 LT |
2921 | } |
2922 | ||
917270c6 DF |
2923 | static int pcnet32_pm_suspend(struct pci_dev *pdev, pm_message_t state) |
2924 | { | |
2925 | struct net_device *dev = pci_get_drvdata(pdev); | |
2926 | ||
2927 | if (netif_running(dev)) { | |
2928 | netif_device_detach(dev); | |
2929 | pcnet32_close(dev); | |
2930 | } | |
2931 | pci_save_state(pdev); | |
2932 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
2933 | return 0; | |
2934 | } | |
2935 | ||
2936 | static int pcnet32_pm_resume(struct pci_dev *pdev) | |
2937 | { | |
2938 | struct net_device *dev = pci_get_drvdata(pdev); | |
2939 | ||
2940 | pci_set_power_state(pdev, PCI_D0); | |
2941 | pci_restore_state(pdev); | |
2942 | ||
2943 | if (netif_running(dev)) { | |
2944 | pcnet32_open(dev); | |
2945 | netif_device_attach(dev); | |
2946 | } | |
2947 | return 0; | |
2948 | } | |
2949 | ||
1da177e4 LT |
2950 | static void __devexit pcnet32_remove_one(struct pci_dev *pdev) |
2951 | { | |
4a5e8e29 JG |
2952 | struct net_device *dev = pci_get_drvdata(pdev); |
2953 | ||
2954 | if (dev) { | |
1e56a4b4 | 2955 | struct pcnet32_private *lp = netdev_priv(dev); |
4a5e8e29 JG |
2956 | |
2957 | unregister_netdev(dev); | |
2958 | pcnet32_free_ring(dev); | |
2959 | release_region(dev->base_addr, PCNET32_TOTAL_SIZE); | |
7d2e3cb7 | 2960 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
6ecb7667 | 2961 | lp->init_block, lp->init_dma_addr); |
4a5e8e29 JG |
2962 | free_netdev(dev); |
2963 | pci_disable_device(pdev); | |
2964 | pci_set_drvdata(pdev, NULL); | |
2965 | } | |
1da177e4 LT |
2966 | } |
2967 | ||
2968 | static struct pci_driver pcnet32_driver = { | |
4a5e8e29 JG |
2969 | .name = DRV_NAME, |
2970 | .probe = pcnet32_probe_pci, | |
2971 | .remove = __devexit_p(pcnet32_remove_one), | |
2972 | .id_table = pcnet32_pci_tbl, | |
917270c6 DF |
2973 | .suspend = pcnet32_pm_suspend, |
2974 | .resume = pcnet32_pm_resume, | |
1da177e4 LT |
2975 | }; |
2976 | ||
2977 | /* An additional parameter that may be passed in... */ | |
2978 | static int debug = -1; | |
2979 | static int tx_start_pt = -1; | |
2980 | static int pcnet32_have_pci; | |
2981 | ||
2982 | module_param(debug, int, 0); | |
2983 | MODULE_PARM_DESC(debug, DRV_NAME " debug level"); | |
2984 | module_param(max_interrupt_work, int, 0); | |
4a5e8e29 JG |
2985 | MODULE_PARM_DESC(max_interrupt_work, |
2986 | DRV_NAME " maximum events handled per interrupt"); | |
1da177e4 | 2987 | module_param(rx_copybreak, int, 0); |
4a5e8e29 JG |
2988 | MODULE_PARM_DESC(rx_copybreak, |
2989 | DRV_NAME " copy breakpoint for copy-only-tiny-frames"); | |
1da177e4 LT |
2990 | module_param(tx_start_pt, int, 0); |
2991 | MODULE_PARM_DESC(tx_start_pt, DRV_NAME " transmit start point (0-3)"); | |
2992 | module_param(pcnet32vlb, int, 0); | |
2993 | MODULE_PARM_DESC(pcnet32vlb, DRV_NAME " Vesa local bus (VLB) support (0/1)"); | |
2994 | module_param_array(options, int, NULL, 0); | |
2995 | MODULE_PARM_DESC(options, DRV_NAME " initial option setting(s) (0-15)"); | |
2996 | module_param_array(full_duplex, int, NULL, 0); | |
2997 | MODULE_PARM_DESC(full_duplex, DRV_NAME " full duplex setting(s) (1)"); | |
2998 | /* Module Parameter for HomePNA cards added by Patrick Simmons, 2004 */ | |
2999 | module_param_array(homepna, int, NULL, 0); | |
4a5e8e29 JG |
3000 | MODULE_PARM_DESC(homepna, |
3001 | DRV_NAME | |
3002 | " mode for 79C978 cards (1 for HomePNA, 0 for Ethernet, default Ethernet"); | |
1da177e4 LT |
3003 | |
3004 | MODULE_AUTHOR("Thomas Bogendoerfer"); | |
3005 | MODULE_DESCRIPTION("Driver for PCnet32 and PCnetPCI based ethercards"); | |
3006 | MODULE_LICENSE("GPL"); | |
3007 | ||
3008 | #define PCNET32_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) | |
3009 | ||
3010 | static int __init pcnet32_init_module(void) | |
3011 | { | |
4a5e8e29 | 3012 | printk(KERN_INFO "%s", version); |
1da177e4 | 3013 | |
4a5e8e29 | 3014 | pcnet32_debug = netif_msg_init(debug, PCNET32_MSG_DEFAULT); |
1da177e4 | 3015 | |
4a5e8e29 JG |
3016 | if ((tx_start_pt >= 0) && (tx_start_pt <= 3)) |
3017 | tx_start = tx_start_pt; | |
1da177e4 | 3018 | |
4a5e8e29 | 3019 | /* find the PCI devices */ |
29917620 | 3020 | if (!pci_register_driver(&pcnet32_driver)) |
4a5e8e29 | 3021 | pcnet32_have_pci = 1; |
1da177e4 | 3022 | |
4a5e8e29 JG |
3023 | /* should we find any remaining VLbus devices ? */ |
3024 | if (pcnet32vlb) | |
dcaf9769 | 3025 | pcnet32_probe_vlbus(pcnet32_portlist); |
1da177e4 | 3026 | |
4a5e8e29 JG |
3027 | if (cards_found && (pcnet32_debug & NETIF_MSG_PROBE)) |
3028 | printk(KERN_INFO PFX "%d cards_found.\n", cards_found); | |
1da177e4 | 3029 | |
4a5e8e29 | 3030 | return (pcnet32_have_pci + cards_found) ? 0 : -ENODEV; |
1da177e4 LT |
3031 | } |
3032 | ||
3033 | static void __exit pcnet32_cleanup_module(void) | |
3034 | { | |
4a5e8e29 JG |
3035 | struct net_device *next_dev; |
3036 | ||
3037 | while (pcnet32_dev) { | |
1e56a4b4 | 3038 | struct pcnet32_private *lp = netdev_priv(pcnet32_dev); |
4a5e8e29 JG |
3039 | next_dev = lp->next; |
3040 | unregister_netdev(pcnet32_dev); | |
3041 | pcnet32_free_ring(pcnet32_dev); | |
3042 | release_region(pcnet32_dev->base_addr, PCNET32_TOTAL_SIZE); | |
7d2e3cb7 | 3043 | pci_free_consistent(lp->pci_dev, sizeof(*lp->init_block), |
6ecb7667 | 3044 | lp->init_block, lp->init_dma_addr); |
4a5e8e29 JG |
3045 | free_netdev(pcnet32_dev); |
3046 | pcnet32_dev = next_dev; | |
3047 | } | |
1da177e4 | 3048 | |
4a5e8e29 JG |
3049 | if (pcnet32_have_pci) |
3050 | pci_unregister_driver(&pcnet32_driver); | |
1da177e4 LT |
3051 | } |
3052 | ||
3053 | module_init(pcnet32_init_module); | |
3054 | module_exit(pcnet32_cleanup_module); | |
3055 | ||
3056 | /* | |
3057 | * Local variables: | |
3058 | * c-indent-level: 4 | |
3059 | * tab-width: 8 | |
3060 | * End: | |
3061 | */ |