Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* $Id: sunlance.c,v 1.112 2002/01/15 06:48:55 davem Exp $ |
2 | * lance.c: Linux/Sparc/Lance driver | |
3 | * | |
4 | * Written 1995, 1996 by Miguel de Icaza | |
5 | * Sources: | |
6 | * The Linux depca driver | |
7 | * The Linux lance driver. | |
8 | * The Linux skeleton driver. | |
9 | * The NetBSD Sparc/Lance driver. | |
10 | * Theo de Raadt (deraadt@openbsd.org) | |
11 | * NCR92C990 Lan Controller manual | |
12 | * | |
13 | * 1.4: | |
14 | * Added support to run with a ledma on the Sun4m | |
15 | * | |
16 | * 1.5: | |
17 | * Added multiple card detection. | |
18 | * | |
19 | * 4/17/96: Burst sizes and tpe selection on sun4m by Eddie C. Dost | |
20 | * (ecd@skynet.be) | |
21 | * | |
22 | * 5/15/96: auto carrier detection on sun4m by Eddie C. Dost | |
23 | * (ecd@skynet.be) | |
24 | * | |
25 | * 5/17/96: lebuffer on scsi/ether cards now work David S. Miller | |
26 | * (davem@caip.rutgers.edu) | |
27 | * | |
28 | * 5/29/96: override option 'tpe-link-test?', if it is 'false', as | |
29 | * this disables auto carrier detection on sun4m. Eddie C. Dost | |
30 | * (ecd@skynet.be) | |
31 | * | |
32 | * 1.7: | |
33 | * 6/26/96: Bug fix for multiple ledmas, miguel. | |
34 | * | |
35 | * 1.8: | |
36 | * Stole multicast code from depca.c, fixed lance_tx. | |
37 | * | |
38 | * 1.9: | |
39 | * 8/21/96: Fixed the multicast code (Pedro Roque) | |
40 | * | |
41 | * 8/28/96: Send fake packet in lance_open() if auto_select is true, | |
42 | * so we can detect the carrier loss condition in time. | |
43 | * Eddie C. Dost (ecd@skynet.be) | |
44 | * | |
45 | * 9/15/96: Align rx_buf so that eth_copy_and_sum() won't cause an | |
46 | * MNA trap during chksum_partial_copy(). (ecd@skynet.be) | |
47 | * | |
48 | * 11/17/96: Handle LE_C0_MERR in lance_interrupt(). (ecd@skynet.be) | |
49 | * | |
50 | * 12/22/96: Don't loop forever in lance_rx() on incomplete packets. | |
51 | * This was the sun4c killer. Shit, stupid bug. | |
52 | * (ecd@skynet.be) | |
53 | * | |
54 | * 1.10: | |
55 | * 1/26/97: Modularize driver. (ecd@skynet.be) | |
56 | * | |
57 | * 1.11: | |
58 | * 12/27/97: Added sun4d support. (jj@sunsite.mff.cuni.cz) | |
59 | * | |
60 | * 1.12: | |
61 | * 11/3/99: Fixed SMP race in lance_start_xmit found by davem. | |
62 | * Anton Blanchard (anton@progsoc.uts.edu.au) | |
63 | * 2.00: 11/9/99: Massive overhaul and port to new SBUS driver interfaces. | |
64 | * David S. Miller (davem@redhat.com) | |
65 | * 2.01: | |
66 | * 11/08/01: Use library crc32 functions (Matt_Domsch@dell.com) | |
6aa20a22 | 67 | * |
1da177e4 LT |
68 | */ |
69 | ||
70 | #undef DEBUG_DRIVER | |
71 | ||
1da177e4 LT |
72 | static char lancestr[] = "LANCE"; |
73 | ||
1da177e4 LT |
74 | #include <linux/module.h> |
75 | #include <linux/kernel.h> | |
76 | #include <linux/types.h> | |
77 | #include <linux/fcntl.h> | |
78 | #include <linux/interrupt.h> | |
79 | #include <linux/ioport.h> | |
80 | #include <linux/in.h> | |
81 | #include <linux/slab.h> | |
82 | #include <linux/string.h> | |
83 | #include <linux/delay.h> | |
84 | #include <linux/init.h> | |
85 | #include <linux/crc32.h> | |
86 | #include <linux/errno.h> | |
87 | #include <linux/socket.h> /* Used for the temporal inet entries and routing */ | |
88 | #include <linux/route.h> | |
89 | #include <linux/netdevice.h> | |
90 | #include <linux/etherdevice.h> | |
91 | #include <linux/skbuff.h> | |
92 | #include <linux/ethtool.h> | |
93 | #include <linux/bitops.h> | |
94 | ||
95 | #include <asm/system.h> | |
96 | #include <asm/io.h> | |
97 | #include <asm/dma.h> | |
98 | #include <asm/pgtable.h> | |
99 | #include <asm/byteorder.h> /* Used by the checksum routines */ | |
100 | #include <asm/idprom.h> | |
101 | #include <asm/sbus.h> | |
102 | #include <asm/openprom.h> | |
103 | #include <asm/oplib.h> | |
104 | #include <asm/auxio.h> /* For tpe-link-test? setting */ | |
105 | #include <asm/irq.h> | |
106 | ||
10158286 TC |
107 | #define DRV_NAME "sunlance" |
108 | #define DRV_VERSION "2.02" | |
109 | #define DRV_RELDATE "8/24/03" | |
110 | #define DRV_AUTHOR "Miguel de Icaza (miguel@nuclecu.unam.mx)" | |
111 | ||
112 | static char version[] = | |
113 | DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n"; | |
114 | ||
115 | MODULE_VERSION(DRV_VERSION); | |
116 | MODULE_AUTHOR(DRV_AUTHOR); | |
117 | MODULE_DESCRIPTION("Sun Lance ethernet driver"); | |
118 | MODULE_LICENSE("GPL"); | |
119 | ||
1da177e4 LT |
120 | /* Define: 2^4 Tx buffers and 2^4 Rx buffers */ |
121 | #ifndef LANCE_LOG_TX_BUFFERS | |
122 | #define LANCE_LOG_TX_BUFFERS 4 | |
123 | #define LANCE_LOG_RX_BUFFERS 4 | |
124 | #endif | |
125 | ||
126 | #define LE_CSR0 0 | |
127 | #define LE_CSR1 1 | |
128 | #define LE_CSR2 2 | |
129 | #define LE_CSR3 3 | |
130 | ||
131 | #define LE_MO_PROM 0x8000 /* Enable promiscuous mode */ | |
132 | ||
133 | #define LE_C0_ERR 0x8000 /* Error: set if BAB, SQE, MISS or ME is set */ | |
134 | #define LE_C0_BABL 0x4000 /* BAB: Babble: tx timeout. */ | |
135 | #define LE_C0_CERR 0x2000 /* SQE: Signal quality error */ | |
136 | #define LE_C0_MISS 0x1000 /* MISS: Missed a packet */ | |
137 | #define LE_C0_MERR 0x0800 /* ME: Memory error */ | |
138 | #define LE_C0_RINT 0x0400 /* Received interrupt */ | |
139 | #define LE_C0_TINT 0x0200 /* Transmitter Interrupt */ | |
140 | #define LE_C0_IDON 0x0100 /* IFIN: Init finished. */ | |
141 | #define LE_C0_INTR 0x0080 /* Interrupt or error */ | |
142 | #define LE_C0_INEA 0x0040 /* Interrupt enable */ | |
143 | #define LE_C0_RXON 0x0020 /* Receiver on */ | |
144 | #define LE_C0_TXON 0x0010 /* Transmitter on */ | |
145 | #define LE_C0_TDMD 0x0008 /* Transmitter demand */ | |
146 | #define LE_C0_STOP 0x0004 /* Stop the card */ | |
147 | #define LE_C0_STRT 0x0002 /* Start the card */ | |
148 | #define LE_C0_INIT 0x0001 /* Init the card */ | |
149 | ||
150 | #define LE_C3_BSWP 0x4 /* SWAP */ | |
151 | #define LE_C3_ACON 0x2 /* ALE Control */ | |
152 | #define LE_C3_BCON 0x1 /* Byte control */ | |
153 | ||
154 | /* Receive message descriptor 1 */ | |
155 | #define LE_R1_OWN 0x80 /* Who owns the entry */ | |
156 | #define LE_R1_ERR 0x40 /* Error: if FRA, OFL, CRC or BUF is set */ | |
157 | #define LE_R1_FRA 0x20 /* FRA: Frame error */ | |
158 | #define LE_R1_OFL 0x10 /* OFL: Frame overflow */ | |
159 | #define LE_R1_CRC 0x08 /* CRC error */ | |
160 | #define LE_R1_BUF 0x04 /* BUF: Buffer error */ | |
161 | #define LE_R1_SOP 0x02 /* Start of packet */ | |
162 | #define LE_R1_EOP 0x01 /* End of packet */ | |
163 | #define LE_R1_POK 0x03 /* Packet is complete: SOP + EOP */ | |
164 | ||
165 | #define LE_T1_OWN 0x80 /* Lance owns the packet */ | |
166 | #define LE_T1_ERR 0x40 /* Error summary */ | |
167 | #define LE_T1_EMORE 0x10 /* Error: more than one retry needed */ | |
168 | #define LE_T1_EONE 0x08 /* Error: one retry needed */ | |
169 | #define LE_T1_EDEF 0x04 /* Error: deferred */ | |
170 | #define LE_T1_SOP 0x02 /* Start of packet */ | |
171 | #define LE_T1_EOP 0x01 /* End of packet */ | |
172 | #define LE_T1_POK 0x03 /* Packet is complete: SOP + EOP */ | |
173 | ||
174 | #define LE_T3_BUF 0x8000 /* Buffer error */ | |
175 | #define LE_T3_UFL 0x4000 /* Error underflow */ | |
176 | #define LE_T3_LCOL 0x1000 /* Error late collision */ | |
177 | #define LE_T3_CLOS 0x0800 /* Error carrier loss */ | |
178 | #define LE_T3_RTY 0x0400 /* Error retry */ | |
179 | #define LE_T3_TDR 0x03ff /* Time Domain Reflectometry counter */ | |
180 | ||
181 | #define TX_RING_SIZE (1 << (LANCE_LOG_TX_BUFFERS)) | |
182 | #define TX_RING_MOD_MASK (TX_RING_SIZE - 1) | |
183 | #define TX_RING_LEN_BITS ((LANCE_LOG_TX_BUFFERS) << 29) | |
184 | #define TX_NEXT(__x) (((__x)+1) & TX_RING_MOD_MASK) | |
185 | ||
186 | #define RX_RING_SIZE (1 << (LANCE_LOG_RX_BUFFERS)) | |
187 | #define RX_RING_MOD_MASK (RX_RING_SIZE - 1) | |
188 | #define RX_RING_LEN_BITS ((LANCE_LOG_RX_BUFFERS) << 29) | |
189 | #define RX_NEXT(__x) (((__x)+1) & RX_RING_MOD_MASK) | |
190 | ||
191 | #define PKT_BUF_SZ 1544 | |
192 | #define RX_BUFF_SIZE PKT_BUF_SZ | |
193 | #define TX_BUFF_SIZE PKT_BUF_SZ | |
194 | ||
195 | struct lance_rx_desc { | |
196 | u16 rmd0; /* low address of packet */ | |
197 | u8 rmd1_bits; /* descriptor bits */ | |
198 | u8 rmd1_hadr; /* high address of packet */ | |
199 | s16 length; /* This length is 2s complement (negative)! | |
200 | * Buffer length | |
201 | */ | |
202 | u16 mblength; /* This is the actual number of bytes received */ | |
203 | }; | |
204 | ||
205 | struct lance_tx_desc { | |
206 | u16 tmd0; /* low address of packet */ | |
207 | u8 tmd1_bits; /* descriptor bits */ | |
208 | u8 tmd1_hadr; /* high address of packet */ | |
209 | s16 length; /* Length is 2s complement (negative)! */ | |
210 | u16 misc; | |
211 | }; | |
6aa20a22 | 212 | |
1da177e4 LT |
213 | /* The LANCE initialization block, described in databook. */ |
214 | /* On the Sparc, this block should be on a DMA region */ | |
215 | struct lance_init_block { | |
216 | u16 mode; /* Pre-set mode (reg. 15) */ | |
217 | u8 phys_addr[6]; /* Physical ethernet address */ | |
218 | u32 filter[2]; /* Multicast filter. */ | |
219 | ||
220 | /* Receive and transmit ring base, along with extra bits. */ | |
221 | u16 rx_ptr; /* receive descriptor addr */ | |
222 | u16 rx_len; /* receive len and high addr */ | |
223 | u16 tx_ptr; /* transmit descriptor addr */ | |
224 | u16 tx_len; /* transmit len and high addr */ | |
6aa20a22 | 225 | |
1da177e4 LT |
226 | /* The Tx and Rx ring entries must aligned on 8-byte boundaries. */ |
227 | struct lance_rx_desc brx_ring[RX_RING_SIZE]; | |
228 | struct lance_tx_desc btx_ring[TX_RING_SIZE]; | |
6aa20a22 | 229 | |
1da177e4 LT |
230 | u8 tx_buf [TX_RING_SIZE][TX_BUFF_SIZE]; |
231 | u8 pad[2]; /* align rx_buf for copy_and_sum(). */ | |
232 | u8 rx_buf [RX_RING_SIZE][RX_BUFF_SIZE]; | |
233 | }; | |
234 | ||
235 | #define libdesc_offset(rt, elem) \ | |
236 | ((__u32)(((unsigned long)(&(((struct lance_init_block *)0)->rt[elem]))))) | |
237 | ||
238 | #define libbuff_offset(rt, elem) \ | |
239 | ((__u32)(((unsigned long)(&(((struct lance_init_block *)0)->rt[elem][0]))))) | |
240 | ||
241 | struct lance_private { | |
242 | void __iomem *lregs; /* Lance RAP/RDP regs. */ | |
243 | void __iomem *dregs; /* DMA controller regs. */ | |
244 | struct lance_init_block __iomem *init_block_iomem; | |
245 | struct lance_init_block *init_block_mem; | |
6aa20a22 | 246 | |
1da177e4 LT |
247 | spinlock_t lock; |
248 | ||
249 | int rx_new, tx_new; | |
250 | int rx_old, tx_old; | |
6aa20a22 | 251 | |
1da177e4 LT |
252 | struct net_device_stats stats; |
253 | struct sbus_dma *ledma; /* If set this points to ledma */ | |
254 | char tpe; /* cable-selection is TPE */ | |
255 | char auto_select; /* cable-selection by carrier */ | |
256 | char burst_sizes; /* ledma SBus burst sizes */ | |
257 | char pio_buffer; /* init block in PIO space? */ | |
258 | ||
259 | unsigned short busmaster_regval; | |
260 | ||
261 | void (*init_ring)(struct net_device *); | |
262 | void (*rx)(struct net_device *); | |
263 | void (*tx)(struct net_device *); | |
264 | ||
265 | char *name; | |
266 | dma_addr_t init_block_dvma; | |
267 | struct net_device *dev; /* Backpointer */ | |
1da177e4 LT |
268 | struct sbus_dev *sdev; |
269 | struct timer_list multicast_timer; | |
270 | }; | |
271 | ||
272 | #define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\ | |
273 | lp->tx_old+TX_RING_MOD_MASK-lp->tx_new:\ | |
274 | lp->tx_old - lp->tx_new-1) | |
275 | ||
276 | /* Lance registers. */ | |
277 | #define RDP 0x00UL /* register data port */ | |
278 | #define RAP 0x02UL /* register address port */ | |
279 | #define LANCE_REG_SIZE 0x04UL | |
280 | ||
281 | #define STOP_LANCE(__lp) \ | |
282 | do { void __iomem *__base = (__lp)->lregs; \ | |
283 | sbus_writew(LE_CSR0, __base + RAP); \ | |
284 | sbus_writew(LE_C0_STOP, __base + RDP); \ | |
285 | } while (0) | |
286 | ||
287 | int sparc_lance_debug = 2; | |
288 | ||
289 | /* The Lance uses 24 bit addresses */ | |
290 | /* On the Sun4c the DVMA will provide the remaining bytes for us */ | |
291 | /* On the Sun4m we have to instruct the ledma to provide them */ | |
292 | /* Even worse, on scsi/ether SBUS cards, the init block and the | |
293 | * transmit/receive buffers are addresses as offsets from absolute | |
294 | * zero on the lebuffer PIO area. -DaveM | |
295 | */ | |
296 | ||
297 | #define LANCE_ADDR(x) ((long)(x) & ~0xff000000) | |
298 | ||
1da177e4 LT |
299 | /* Load the CSR registers */ |
300 | static void load_csrs(struct lance_private *lp) | |
301 | { | |
302 | u32 leptr; | |
303 | ||
304 | if (lp->pio_buffer) | |
305 | leptr = 0; | |
306 | else | |
307 | leptr = LANCE_ADDR(lp->init_block_dvma); | |
308 | ||
309 | sbus_writew(LE_CSR1, lp->lregs + RAP); | |
310 | sbus_writew(leptr & 0xffff, lp->lregs + RDP); | |
311 | sbus_writew(LE_CSR2, lp->lregs + RAP); | |
312 | sbus_writew(leptr >> 16, lp->lregs + RDP); | |
313 | sbus_writew(LE_CSR3, lp->lregs + RAP); | |
314 | sbus_writew(lp->busmaster_regval, lp->lregs + RDP); | |
315 | ||
316 | /* Point back to csr0 */ | |
317 | sbus_writew(LE_CSR0, lp->lregs + RAP); | |
318 | } | |
319 | ||
320 | /* Setup the Lance Rx and Tx rings */ | |
321 | static void lance_init_ring_dvma(struct net_device *dev) | |
322 | { | |
323 | struct lance_private *lp = netdev_priv(dev); | |
324 | struct lance_init_block *ib = lp->init_block_mem; | |
325 | dma_addr_t aib = lp->init_block_dvma; | |
326 | __u32 leptr; | |
327 | int i; | |
6aa20a22 | 328 | |
1da177e4 LT |
329 | /* Lock out other processes while setting up hardware */ |
330 | netif_stop_queue(dev); | |
331 | lp->rx_new = lp->tx_new = 0; | |
332 | lp->rx_old = lp->tx_old = 0; | |
333 | ||
334 | /* Copy the ethernet address to the lance init block | |
335 | * Note that on the sparc you need to swap the ethernet address. | |
336 | */ | |
337 | ib->phys_addr [0] = dev->dev_addr [1]; | |
338 | ib->phys_addr [1] = dev->dev_addr [0]; | |
339 | ib->phys_addr [2] = dev->dev_addr [3]; | |
340 | ib->phys_addr [3] = dev->dev_addr [2]; | |
341 | ib->phys_addr [4] = dev->dev_addr [5]; | |
342 | ib->phys_addr [5] = dev->dev_addr [4]; | |
343 | ||
344 | /* Setup the Tx ring entries */ | |
345 | for (i = 0; i <= TX_RING_SIZE; i++) { | |
346 | leptr = LANCE_ADDR(aib + libbuff_offset(tx_buf, i)); | |
347 | ib->btx_ring [i].tmd0 = leptr; | |
348 | ib->btx_ring [i].tmd1_hadr = leptr >> 16; | |
349 | ib->btx_ring [i].tmd1_bits = 0; | |
350 | ib->btx_ring [i].length = 0xf000; /* The ones required by tmd2 */ | |
351 | ib->btx_ring [i].misc = 0; | |
352 | } | |
353 | ||
354 | /* Setup the Rx ring entries */ | |
355 | for (i = 0; i < RX_RING_SIZE; i++) { | |
356 | leptr = LANCE_ADDR(aib + libbuff_offset(rx_buf, i)); | |
357 | ||
358 | ib->brx_ring [i].rmd0 = leptr; | |
359 | ib->brx_ring [i].rmd1_hadr = leptr >> 16; | |
360 | ib->brx_ring [i].rmd1_bits = LE_R1_OWN; | |
361 | ib->brx_ring [i].length = -RX_BUFF_SIZE | 0xf000; | |
362 | ib->brx_ring [i].mblength = 0; | |
363 | } | |
364 | ||
365 | /* Setup the initialization block */ | |
6aa20a22 | 366 | |
1da177e4 LT |
367 | /* Setup rx descriptor pointer */ |
368 | leptr = LANCE_ADDR(aib + libdesc_offset(brx_ring, 0)); | |
369 | ib->rx_len = (LANCE_LOG_RX_BUFFERS << 13) | (leptr >> 16); | |
370 | ib->rx_ptr = leptr; | |
6aa20a22 | 371 | |
1da177e4 LT |
372 | /* Setup tx descriptor pointer */ |
373 | leptr = LANCE_ADDR(aib + libdesc_offset(btx_ring, 0)); | |
374 | ib->tx_len = (LANCE_LOG_TX_BUFFERS << 13) | (leptr >> 16); | |
375 | ib->tx_ptr = leptr; | |
376 | } | |
377 | ||
378 | static void lance_init_ring_pio(struct net_device *dev) | |
379 | { | |
380 | struct lance_private *lp = netdev_priv(dev); | |
381 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
382 | u32 leptr; | |
383 | int i; | |
6aa20a22 | 384 | |
1da177e4 LT |
385 | /* Lock out other processes while setting up hardware */ |
386 | netif_stop_queue(dev); | |
387 | lp->rx_new = lp->tx_new = 0; | |
388 | lp->rx_old = lp->tx_old = 0; | |
389 | ||
390 | /* Copy the ethernet address to the lance init block | |
391 | * Note that on the sparc you need to swap the ethernet address. | |
392 | */ | |
393 | sbus_writeb(dev->dev_addr[1], &ib->phys_addr[0]); | |
394 | sbus_writeb(dev->dev_addr[0], &ib->phys_addr[1]); | |
395 | sbus_writeb(dev->dev_addr[3], &ib->phys_addr[2]); | |
396 | sbus_writeb(dev->dev_addr[2], &ib->phys_addr[3]); | |
397 | sbus_writeb(dev->dev_addr[5], &ib->phys_addr[4]); | |
398 | sbus_writeb(dev->dev_addr[4], &ib->phys_addr[5]); | |
399 | ||
400 | /* Setup the Tx ring entries */ | |
401 | for (i = 0; i <= TX_RING_SIZE; i++) { | |
402 | leptr = libbuff_offset(tx_buf, i); | |
403 | sbus_writew(leptr, &ib->btx_ring [i].tmd0); | |
404 | sbus_writeb(leptr >> 16,&ib->btx_ring [i].tmd1_hadr); | |
405 | sbus_writeb(0, &ib->btx_ring [i].tmd1_bits); | |
406 | ||
407 | /* The ones required by tmd2 */ | |
408 | sbus_writew(0xf000, &ib->btx_ring [i].length); | |
409 | sbus_writew(0, &ib->btx_ring [i].misc); | |
410 | } | |
411 | ||
412 | /* Setup the Rx ring entries */ | |
413 | for (i = 0; i < RX_RING_SIZE; i++) { | |
414 | leptr = libbuff_offset(rx_buf, i); | |
415 | ||
416 | sbus_writew(leptr, &ib->brx_ring [i].rmd0); | |
417 | sbus_writeb(leptr >> 16,&ib->brx_ring [i].rmd1_hadr); | |
418 | sbus_writeb(LE_R1_OWN, &ib->brx_ring [i].rmd1_bits); | |
419 | sbus_writew(-RX_BUFF_SIZE|0xf000, | |
420 | &ib->brx_ring [i].length); | |
421 | sbus_writew(0, &ib->brx_ring [i].mblength); | |
422 | } | |
423 | ||
424 | /* Setup the initialization block */ | |
6aa20a22 | 425 | |
1da177e4 LT |
426 | /* Setup rx descriptor pointer */ |
427 | leptr = libdesc_offset(brx_ring, 0); | |
428 | sbus_writew((LANCE_LOG_RX_BUFFERS << 13) | (leptr >> 16), | |
429 | &ib->rx_len); | |
430 | sbus_writew(leptr, &ib->rx_ptr); | |
6aa20a22 | 431 | |
1da177e4 LT |
432 | /* Setup tx descriptor pointer */ |
433 | leptr = libdesc_offset(btx_ring, 0); | |
434 | sbus_writew((LANCE_LOG_TX_BUFFERS << 13) | (leptr >> 16), | |
435 | &ib->tx_len); | |
436 | sbus_writew(leptr, &ib->tx_ptr); | |
437 | } | |
438 | ||
439 | static void init_restart_ledma(struct lance_private *lp) | |
440 | { | |
441 | u32 csr = sbus_readl(lp->dregs + DMA_CSR); | |
442 | ||
443 | if (!(csr & DMA_HNDL_ERROR)) { | |
444 | /* E-Cache draining */ | |
445 | while (sbus_readl(lp->dregs + DMA_CSR) & DMA_FIFO_ISDRAIN) | |
446 | barrier(); | |
447 | } | |
448 | ||
449 | csr = sbus_readl(lp->dregs + DMA_CSR); | |
450 | csr &= ~DMA_E_BURSTS; | |
451 | if (lp->burst_sizes & DMA_BURST32) | |
452 | csr |= DMA_E_BURST32; | |
453 | else | |
454 | csr |= DMA_E_BURST16; | |
455 | ||
456 | csr |= (DMA_DSBL_RD_DRN | DMA_DSBL_WR_INV | DMA_FIFO_INV); | |
457 | ||
458 | if (lp->tpe) | |
459 | csr |= DMA_EN_ENETAUI; | |
460 | else | |
461 | csr &= ~DMA_EN_ENETAUI; | |
462 | udelay(20); | |
463 | sbus_writel(csr, lp->dregs + DMA_CSR); | |
464 | udelay(200); | |
465 | } | |
466 | ||
467 | static int init_restart_lance(struct lance_private *lp) | |
468 | { | |
469 | u16 regval = 0; | |
470 | int i; | |
471 | ||
472 | if (lp->dregs) | |
473 | init_restart_ledma(lp); | |
474 | ||
475 | sbus_writew(LE_CSR0, lp->lregs + RAP); | |
476 | sbus_writew(LE_C0_INIT, lp->lregs + RDP); | |
477 | ||
478 | /* Wait for the lance to complete initialization */ | |
479 | for (i = 0; i < 100; i++) { | |
480 | regval = sbus_readw(lp->lregs + RDP); | |
481 | ||
482 | if (regval & (LE_C0_ERR | LE_C0_IDON)) | |
483 | break; | |
484 | barrier(); | |
485 | } | |
486 | if (i == 100 || (regval & LE_C0_ERR)) { | |
487 | printk(KERN_ERR "LANCE unopened after %d ticks, csr0=%4.4x.\n", | |
488 | i, regval); | |
489 | if (lp->dregs) | |
490 | printk("dcsr=%8.8x\n", sbus_readl(lp->dregs + DMA_CSR)); | |
491 | return -1; | |
492 | } | |
493 | ||
494 | /* Clear IDON by writing a "1", enable interrupts and start lance */ | |
495 | sbus_writew(LE_C0_IDON, lp->lregs + RDP); | |
496 | sbus_writew(LE_C0_INEA | LE_C0_STRT, lp->lregs + RDP); | |
497 | ||
498 | if (lp->dregs) { | |
499 | u32 csr = sbus_readl(lp->dregs + DMA_CSR); | |
500 | ||
501 | csr |= DMA_INT_ENAB; | |
502 | sbus_writel(csr, lp->dregs + DMA_CSR); | |
503 | } | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | static void lance_rx_dvma(struct net_device *dev) | |
509 | { | |
510 | struct lance_private *lp = netdev_priv(dev); | |
511 | struct lance_init_block *ib = lp->init_block_mem; | |
512 | struct lance_rx_desc *rd; | |
513 | u8 bits; | |
514 | int len, entry = lp->rx_new; | |
515 | struct sk_buff *skb; | |
516 | ||
517 | for (rd = &ib->brx_ring [entry]; | |
518 | !((bits = rd->rmd1_bits) & LE_R1_OWN); | |
519 | rd = &ib->brx_ring [entry]) { | |
520 | ||
521 | /* We got an incomplete frame? */ | |
522 | if ((bits & LE_R1_POK) != LE_R1_POK) { | |
523 | lp->stats.rx_over_errors++; | |
524 | lp->stats.rx_errors++; | |
525 | } else if (bits & LE_R1_ERR) { | |
526 | /* Count only the end frame as a rx error, | |
527 | * not the beginning | |
528 | */ | |
529 | if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++; | |
530 | if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++; | |
531 | if (bits & LE_R1_OFL) lp->stats.rx_over_errors++; | |
532 | if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++; | |
533 | if (bits & LE_R1_EOP) lp->stats.rx_errors++; | |
534 | } else { | |
535 | len = (rd->mblength & 0xfff) - 4; | |
536 | skb = dev_alloc_skb(len + 2); | |
537 | ||
538 | if (skb == NULL) { | |
539 | printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n", | |
540 | dev->name); | |
541 | lp->stats.rx_dropped++; | |
542 | rd->mblength = 0; | |
543 | rd->rmd1_bits = LE_R1_OWN; | |
544 | lp->rx_new = RX_NEXT(entry); | |
545 | return; | |
546 | } | |
6aa20a22 | 547 | |
1da177e4 LT |
548 | lp->stats.rx_bytes += len; |
549 | ||
550 | skb->dev = dev; | |
551 | skb_reserve(skb, 2); /* 16 byte align */ | |
552 | skb_put(skb, len); /* make room */ | |
553 | eth_copy_and_sum(skb, | |
554 | (unsigned char *)&(ib->rx_buf [entry][0]), | |
555 | len, 0); | |
556 | skb->protocol = eth_type_trans(skb, dev); | |
557 | netif_rx(skb); | |
558 | dev->last_rx = jiffies; | |
559 | lp->stats.rx_packets++; | |
560 | } | |
561 | ||
562 | /* Return the packet to the pool */ | |
563 | rd->mblength = 0; | |
564 | rd->rmd1_bits = LE_R1_OWN; | |
565 | entry = RX_NEXT(entry); | |
566 | } | |
567 | ||
568 | lp->rx_new = entry; | |
569 | } | |
570 | ||
571 | static void lance_tx_dvma(struct net_device *dev) | |
572 | { | |
573 | struct lance_private *lp = netdev_priv(dev); | |
574 | struct lance_init_block *ib = lp->init_block_mem; | |
575 | int i, j; | |
576 | ||
577 | spin_lock(&lp->lock); | |
578 | ||
579 | j = lp->tx_old; | |
580 | for (i = j; i != lp->tx_new; i = j) { | |
581 | struct lance_tx_desc *td = &ib->btx_ring [i]; | |
582 | u8 bits = td->tmd1_bits; | |
583 | ||
584 | /* If we hit a packet not owned by us, stop */ | |
585 | if (bits & LE_T1_OWN) | |
586 | break; | |
6aa20a22 | 587 | |
1da177e4 LT |
588 | if (bits & LE_T1_ERR) { |
589 | u16 status = td->misc; | |
6aa20a22 | 590 | |
1da177e4 LT |
591 | lp->stats.tx_errors++; |
592 | if (status & LE_T3_RTY) lp->stats.tx_aborted_errors++; | |
593 | if (status & LE_T3_LCOL) lp->stats.tx_window_errors++; | |
594 | ||
595 | if (status & LE_T3_CLOS) { | |
596 | lp->stats.tx_carrier_errors++; | |
597 | if (lp->auto_select) { | |
598 | lp->tpe = 1 - lp->tpe; | |
599 | printk(KERN_NOTICE "%s: Carrier Lost, trying %s\n", | |
600 | dev->name, lp->tpe?"TPE":"AUI"); | |
601 | STOP_LANCE(lp); | |
602 | lp->init_ring(dev); | |
603 | load_csrs(lp); | |
604 | init_restart_lance(lp); | |
605 | goto out; | |
606 | } | |
607 | } | |
608 | ||
609 | /* Buffer errors and underflows turn off the | |
610 | * transmitter, restart the adapter. | |
611 | */ | |
612 | if (status & (LE_T3_BUF|LE_T3_UFL)) { | |
613 | lp->stats.tx_fifo_errors++; | |
614 | ||
615 | printk(KERN_ERR "%s: Tx: ERR_BUF|ERR_UFL, restarting\n", | |
616 | dev->name); | |
617 | STOP_LANCE(lp); | |
618 | lp->init_ring(dev); | |
619 | load_csrs(lp); | |
620 | init_restart_lance(lp); | |
621 | goto out; | |
622 | } | |
623 | } else if ((bits & LE_T1_POK) == LE_T1_POK) { | |
624 | /* | |
625 | * So we don't count the packet more than once. | |
626 | */ | |
627 | td->tmd1_bits = bits & ~(LE_T1_POK); | |
628 | ||
629 | /* One collision before packet was sent. */ | |
630 | if (bits & LE_T1_EONE) | |
631 | lp->stats.collisions++; | |
632 | ||
633 | /* More than one collision, be optimistic. */ | |
634 | if (bits & LE_T1_EMORE) | |
635 | lp->stats.collisions += 2; | |
636 | ||
637 | lp->stats.tx_packets++; | |
638 | } | |
6aa20a22 | 639 | |
1da177e4 LT |
640 | j = TX_NEXT(j); |
641 | } | |
642 | lp->tx_old = j; | |
643 | out: | |
644 | if (netif_queue_stopped(dev) && | |
645 | TX_BUFFS_AVAIL > 0) | |
646 | netif_wake_queue(dev); | |
647 | ||
648 | spin_unlock(&lp->lock); | |
649 | } | |
650 | ||
651 | static void lance_piocopy_to_skb(struct sk_buff *skb, void __iomem *piobuf, int len) | |
652 | { | |
653 | u16 *p16 = (u16 *) skb->data; | |
654 | u32 *p32; | |
655 | u8 *p8; | |
656 | void __iomem *pbuf = piobuf; | |
657 | ||
658 | /* We know here that both src and dest are on a 16bit boundary. */ | |
659 | *p16++ = sbus_readw(pbuf); | |
660 | p32 = (u32 *) p16; | |
661 | pbuf += 2; | |
662 | len -= 2; | |
663 | ||
664 | while (len >= 4) { | |
665 | *p32++ = sbus_readl(pbuf); | |
666 | pbuf += 4; | |
667 | len -= 4; | |
668 | } | |
669 | p8 = (u8 *) p32; | |
670 | if (len >= 2) { | |
671 | p16 = (u16 *) p32; | |
672 | *p16++ = sbus_readw(pbuf); | |
673 | pbuf += 2; | |
674 | len -= 2; | |
675 | p8 = (u8 *) p16; | |
676 | } | |
677 | if (len >= 1) | |
678 | *p8 = sbus_readb(pbuf); | |
679 | } | |
680 | ||
681 | static void lance_rx_pio(struct net_device *dev) | |
682 | { | |
683 | struct lance_private *lp = netdev_priv(dev); | |
684 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
685 | struct lance_rx_desc __iomem *rd; | |
686 | unsigned char bits; | |
687 | int len, entry; | |
688 | struct sk_buff *skb; | |
689 | ||
690 | entry = lp->rx_new; | |
691 | for (rd = &ib->brx_ring [entry]; | |
692 | !((bits = sbus_readb(&rd->rmd1_bits)) & LE_R1_OWN); | |
693 | rd = &ib->brx_ring [entry]) { | |
694 | ||
695 | /* We got an incomplete frame? */ | |
696 | if ((bits & LE_R1_POK) != LE_R1_POK) { | |
697 | lp->stats.rx_over_errors++; | |
698 | lp->stats.rx_errors++; | |
699 | } else if (bits & LE_R1_ERR) { | |
700 | /* Count only the end frame as a rx error, | |
701 | * not the beginning | |
702 | */ | |
703 | if (bits & LE_R1_BUF) lp->stats.rx_fifo_errors++; | |
704 | if (bits & LE_R1_CRC) lp->stats.rx_crc_errors++; | |
705 | if (bits & LE_R1_OFL) lp->stats.rx_over_errors++; | |
706 | if (bits & LE_R1_FRA) lp->stats.rx_frame_errors++; | |
707 | if (bits & LE_R1_EOP) lp->stats.rx_errors++; | |
708 | } else { | |
709 | len = (sbus_readw(&rd->mblength) & 0xfff) - 4; | |
710 | skb = dev_alloc_skb(len + 2); | |
711 | ||
712 | if (skb == NULL) { | |
713 | printk(KERN_INFO "%s: Memory squeeze, deferring packet.\n", | |
714 | dev->name); | |
715 | lp->stats.rx_dropped++; | |
716 | sbus_writew(0, &rd->mblength); | |
717 | sbus_writeb(LE_R1_OWN, &rd->rmd1_bits); | |
718 | lp->rx_new = RX_NEXT(entry); | |
719 | return; | |
720 | } | |
6aa20a22 | 721 | |
1da177e4 LT |
722 | lp->stats.rx_bytes += len; |
723 | ||
724 | skb->dev = dev; | |
725 | skb_reserve (skb, 2); /* 16 byte align */ | |
726 | skb_put(skb, len); /* make room */ | |
727 | lance_piocopy_to_skb(skb, &(ib->rx_buf[entry][0]), len); | |
728 | skb->protocol = eth_type_trans(skb, dev); | |
729 | netif_rx(skb); | |
730 | dev->last_rx = jiffies; | |
731 | lp->stats.rx_packets++; | |
732 | } | |
733 | ||
734 | /* Return the packet to the pool */ | |
735 | sbus_writew(0, &rd->mblength); | |
736 | sbus_writeb(LE_R1_OWN, &rd->rmd1_bits); | |
737 | entry = RX_NEXT(entry); | |
738 | } | |
739 | ||
740 | lp->rx_new = entry; | |
741 | } | |
742 | ||
743 | static void lance_tx_pio(struct net_device *dev) | |
744 | { | |
745 | struct lance_private *lp = netdev_priv(dev); | |
746 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
747 | int i, j; | |
748 | ||
749 | spin_lock(&lp->lock); | |
750 | ||
751 | j = lp->tx_old; | |
752 | for (i = j; i != lp->tx_new; i = j) { | |
753 | struct lance_tx_desc __iomem *td = &ib->btx_ring [i]; | |
754 | u8 bits = sbus_readb(&td->tmd1_bits); | |
755 | ||
756 | /* If we hit a packet not owned by us, stop */ | |
757 | if (bits & LE_T1_OWN) | |
758 | break; | |
6aa20a22 | 759 | |
1da177e4 LT |
760 | if (bits & LE_T1_ERR) { |
761 | u16 status = sbus_readw(&td->misc); | |
6aa20a22 | 762 | |
1da177e4 LT |
763 | lp->stats.tx_errors++; |
764 | if (status & LE_T3_RTY) lp->stats.tx_aborted_errors++; | |
765 | if (status & LE_T3_LCOL) lp->stats.tx_window_errors++; | |
766 | ||
767 | if (status & LE_T3_CLOS) { | |
768 | lp->stats.tx_carrier_errors++; | |
769 | if (lp->auto_select) { | |
770 | lp->tpe = 1 - lp->tpe; | |
771 | printk(KERN_NOTICE "%s: Carrier Lost, trying %s\n", | |
772 | dev->name, lp->tpe?"TPE":"AUI"); | |
773 | STOP_LANCE(lp); | |
774 | lp->init_ring(dev); | |
775 | load_csrs(lp); | |
776 | init_restart_lance(lp); | |
777 | goto out; | |
778 | } | |
779 | } | |
780 | ||
781 | /* Buffer errors and underflows turn off the | |
782 | * transmitter, restart the adapter. | |
783 | */ | |
784 | if (status & (LE_T3_BUF|LE_T3_UFL)) { | |
785 | lp->stats.tx_fifo_errors++; | |
786 | ||
787 | printk(KERN_ERR "%s: Tx: ERR_BUF|ERR_UFL, restarting\n", | |
788 | dev->name); | |
789 | STOP_LANCE(lp); | |
790 | lp->init_ring(dev); | |
791 | load_csrs(lp); | |
792 | init_restart_lance(lp); | |
793 | goto out; | |
794 | } | |
795 | } else if ((bits & LE_T1_POK) == LE_T1_POK) { | |
796 | /* | |
797 | * So we don't count the packet more than once. | |
798 | */ | |
799 | sbus_writeb(bits & ~(LE_T1_POK), &td->tmd1_bits); | |
800 | ||
801 | /* One collision before packet was sent. */ | |
802 | if (bits & LE_T1_EONE) | |
803 | lp->stats.collisions++; | |
804 | ||
805 | /* More than one collision, be optimistic. */ | |
806 | if (bits & LE_T1_EMORE) | |
807 | lp->stats.collisions += 2; | |
808 | ||
809 | lp->stats.tx_packets++; | |
810 | } | |
6aa20a22 | 811 | |
1da177e4 LT |
812 | j = TX_NEXT(j); |
813 | } | |
814 | lp->tx_old = j; | |
815 | ||
816 | if (netif_queue_stopped(dev) && | |
817 | TX_BUFFS_AVAIL > 0) | |
818 | netif_wake_queue(dev); | |
819 | out: | |
820 | spin_unlock(&lp->lock); | |
821 | } | |
822 | ||
823 | static irqreturn_t lance_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
824 | { | |
825 | struct net_device *dev = (struct net_device *)dev_id; | |
826 | struct lance_private *lp = netdev_priv(dev); | |
827 | int csr0; | |
6aa20a22 | 828 | |
1da177e4 LT |
829 | sbus_writew(LE_CSR0, lp->lregs + RAP); |
830 | csr0 = sbus_readw(lp->lregs + RDP); | |
831 | ||
832 | /* Acknowledge all the interrupt sources ASAP */ | |
833 | sbus_writew(csr0 & (LE_C0_INTR | LE_C0_TINT | LE_C0_RINT), | |
834 | lp->lregs + RDP); | |
6aa20a22 | 835 | |
1da177e4 LT |
836 | if ((csr0 & LE_C0_ERR) != 0) { |
837 | /* Clear the error condition */ | |
838 | sbus_writew((LE_C0_BABL | LE_C0_ERR | LE_C0_MISS | | |
839 | LE_C0_CERR | LE_C0_MERR), | |
840 | lp->lregs + RDP); | |
841 | } | |
6aa20a22 | 842 | |
1da177e4 LT |
843 | if (csr0 & LE_C0_RINT) |
844 | lp->rx(dev); | |
6aa20a22 | 845 | |
1da177e4 LT |
846 | if (csr0 & LE_C0_TINT) |
847 | lp->tx(dev); | |
6aa20a22 | 848 | |
1da177e4 LT |
849 | if (csr0 & LE_C0_BABL) |
850 | lp->stats.tx_errors++; | |
851 | ||
852 | if (csr0 & LE_C0_MISS) | |
853 | lp->stats.rx_errors++; | |
854 | ||
855 | if (csr0 & LE_C0_MERR) { | |
856 | if (lp->dregs) { | |
857 | u32 addr = sbus_readl(lp->dregs + DMA_ADDR); | |
858 | ||
859 | printk(KERN_ERR "%s: Memory error, status %04x, addr %06x\n", | |
860 | dev->name, csr0, addr & 0xffffff); | |
861 | } else { | |
862 | printk(KERN_ERR "%s: Memory error, status %04x\n", | |
863 | dev->name, csr0); | |
864 | } | |
865 | ||
866 | sbus_writew(LE_C0_STOP, lp->lregs + RDP); | |
867 | ||
868 | if (lp->dregs) { | |
869 | u32 dma_csr = sbus_readl(lp->dregs + DMA_CSR); | |
870 | ||
871 | dma_csr |= DMA_FIFO_INV; | |
872 | sbus_writel(dma_csr, lp->dregs + DMA_CSR); | |
873 | } | |
874 | ||
875 | lp->init_ring(dev); | |
876 | load_csrs(lp); | |
877 | init_restart_lance(lp); | |
878 | netif_wake_queue(dev); | |
879 | } | |
880 | ||
881 | sbus_writew(LE_C0_INEA, lp->lregs + RDP); | |
882 | ||
883 | return IRQ_HANDLED; | |
884 | } | |
885 | ||
886 | /* Build a fake network packet and send it to ourselves. */ | |
887 | static void build_fake_packet(struct lance_private *lp) | |
888 | { | |
889 | struct net_device *dev = lp->dev; | |
890 | int i, entry; | |
891 | ||
892 | entry = lp->tx_new & TX_RING_MOD_MASK; | |
893 | if (lp->pio_buffer) { | |
894 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
895 | u16 __iomem *packet = (u16 __iomem *) &(ib->tx_buf[entry][0]); | |
896 | struct ethhdr __iomem *eth = (struct ethhdr __iomem *) packet; | |
897 | for (i = 0; i < (ETH_ZLEN / sizeof(u16)); i++) | |
898 | sbus_writew(0, &packet[i]); | |
899 | for (i = 0; i < 6; i++) { | |
900 | sbus_writeb(dev->dev_addr[i], ð->h_dest[i]); | |
901 | sbus_writeb(dev->dev_addr[i], ð->h_source[i]); | |
902 | } | |
903 | sbus_writew((-ETH_ZLEN) | 0xf000, &ib->btx_ring[entry].length); | |
904 | sbus_writew(0, &ib->btx_ring[entry].misc); | |
905 | sbus_writeb(LE_T1_POK|LE_T1_OWN, &ib->btx_ring[entry].tmd1_bits); | |
906 | } else { | |
907 | struct lance_init_block *ib = lp->init_block_mem; | |
908 | u16 *packet = (u16 *) &(ib->tx_buf[entry][0]); | |
909 | struct ethhdr *eth = (struct ethhdr *) packet; | |
910 | memset(packet, 0, ETH_ZLEN); | |
911 | for (i = 0; i < 6; i++) { | |
912 | eth->h_dest[i] = dev->dev_addr[i]; | |
913 | eth->h_source[i] = dev->dev_addr[i]; | |
914 | } | |
915 | ib->btx_ring[entry].length = (-ETH_ZLEN) | 0xf000; | |
916 | ib->btx_ring[entry].misc = 0; | |
917 | ib->btx_ring[entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN); | |
918 | } | |
919 | lp->tx_new = TX_NEXT(entry); | |
920 | } | |
921 | ||
922 | struct net_device *last_dev; | |
923 | ||
924 | static int lance_open(struct net_device *dev) | |
925 | { | |
926 | struct lance_private *lp = netdev_priv(dev); | |
927 | int status = 0; | |
928 | ||
929 | last_dev = dev; | |
930 | ||
931 | STOP_LANCE(lp); | |
932 | ||
1fb9df5d | 933 | if (request_irq(dev->irq, &lance_interrupt, IRQF_SHARED, |
1da177e4 | 934 | lancestr, (void *) dev)) { |
c6387a48 | 935 | printk(KERN_ERR "Lance: Can't get irq %d\n", dev->irq); |
1da177e4 LT |
936 | return -EAGAIN; |
937 | } | |
938 | ||
939 | /* On the 4m, setup the ledma to provide the upper bits for buffers */ | |
940 | if (lp->dregs) { | |
941 | u32 regval = lp->init_block_dvma & 0xff000000; | |
942 | ||
943 | sbus_writel(regval, lp->dregs + DMA_TEST); | |
944 | } | |
945 | ||
946 | /* Set mode and clear multicast filter only at device open, | |
947 | * so that lance_init_ring() called at any error will not | |
948 | * forget multicast filters. | |
949 | * | |
950 | * BTW it is common bug in all lance drivers! --ANK | |
951 | */ | |
952 | if (lp->pio_buffer) { | |
953 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
954 | sbus_writew(0, &ib->mode); | |
955 | sbus_writel(0, &ib->filter[0]); | |
956 | sbus_writel(0, &ib->filter[1]); | |
957 | } else { | |
958 | struct lance_init_block *ib = lp->init_block_mem; | |
959 | ib->mode = 0; | |
960 | ib->filter [0] = 0; | |
961 | ib->filter [1] = 0; | |
962 | } | |
963 | ||
964 | lp->init_ring(dev); | |
965 | load_csrs(lp); | |
966 | ||
967 | netif_start_queue(dev); | |
968 | ||
969 | status = init_restart_lance(lp); | |
970 | if (!status && lp->auto_select) { | |
971 | build_fake_packet(lp); | |
972 | sbus_writew(LE_C0_INEA | LE_C0_TDMD, lp->lregs + RDP); | |
973 | } | |
974 | ||
975 | return status; | |
976 | } | |
977 | ||
978 | static int lance_close(struct net_device *dev) | |
979 | { | |
980 | struct lance_private *lp = netdev_priv(dev); | |
981 | ||
982 | netif_stop_queue(dev); | |
983 | del_timer_sync(&lp->multicast_timer); | |
984 | ||
985 | STOP_LANCE(lp); | |
986 | ||
987 | free_irq(dev->irq, (void *) dev); | |
988 | return 0; | |
989 | } | |
990 | ||
991 | static int lance_reset(struct net_device *dev) | |
992 | { | |
993 | struct lance_private *lp = netdev_priv(dev); | |
994 | int status; | |
6aa20a22 | 995 | |
1da177e4 LT |
996 | STOP_LANCE(lp); |
997 | ||
998 | /* On the 4m, reset the dma too */ | |
999 | if (lp->dregs) { | |
1000 | u32 csr, addr; | |
1001 | ||
1002 | printk(KERN_ERR "resetting ledma\n"); | |
1003 | csr = sbus_readl(lp->dregs + DMA_CSR); | |
1004 | sbus_writel(csr | DMA_RST_ENET, lp->dregs + DMA_CSR); | |
1005 | udelay(200); | |
1006 | sbus_writel(csr & ~DMA_RST_ENET, lp->dregs + DMA_CSR); | |
1007 | ||
1008 | addr = lp->init_block_dvma & 0xff000000; | |
1009 | sbus_writel(addr, lp->dregs + DMA_TEST); | |
1010 | } | |
1011 | lp->init_ring(dev); | |
1012 | load_csrs(lp); | |
1013 | dev->trans_start = jiffies; | |
1014 | status = init_restart_lance(lp); | |
1015 | return status; | |
1016 | } | |
1017 | ||
1018 | static void lance_piocopy_from_skb(void __iomem *dest, unsigned char *src, int len) | |
1019 | { | |
1020 | void __iomem *piobuf = dest; | |
1021 | u32 *p32; | |
1022 | u16 *p16; | |
1023 | u8 *p8; | |
1024 | ||
1025 | switch ((unsigned long)src & 0x3) { | |
1026 | case 0: | |
1027 | p32 = (u32 *) src; | |
1028 | while (len >= 4) { | |
1029 | sbus_writel(*p32, piobuf); | |
1030 | p32++; | |
1031 | piobuf += 4; | |
1032 | len -= 4; | |
1033 | } | |
1034 | src = (char *) p32; | |
1035 | break; | |
1036 | case 1: | |
1037 | case 3: | |
1038 | p8 = (u8 *) src; | |
1039 | while (len >= 4) { | |
1040 | u32 val; | |
1041 | ||
1042 | val = p8[0] << 24; | |
1043 | val |= p8[1] << 16; | |
1044 | val |= p8[2] << 8; | |
1045 | val |= p8[3]; | |
1046 | sbus_writel(val, piobuf); | |
1047 | p8 += 4; | |
1048 | piobuf += 4; | |
1049 | len -= 4; | |
1050 | } | |
1051 | src = (char *) p8; | |
1052 | break; | |
1053 | case 2: | |
1054 | p16 = (u16 *) src; | |
1055 | while (len >= 4) { | |
1056 | u32 val = p16[0]<<16 | p16[1]; | |
1057 | sbus_writel(val, piobuf); | |
1058 | p16 += 2; | |
1059 | piobuf += 4; | |
1060 | len -= 4; | |
1061 | } | |
1062 | src = (char *) p16; | |
1063 | break; | |
1064 | }; | |
1065 | if (len >= 2) { | |
1066 | u16 val = src[0] << 8 | src[1]; | |
1067 | sbus_writew(val, piobuf); | |
1068 | src += 2; | |
1069 | piobuf += 2; | |
1070 | len -= 2; | |
1071 | } | |
1072 | if (len >= 1) | |
1073 | sbus_writeb(src[0], piobuf); | |
1074 | } | |
1075 | ||
1076 | static void lance_piozero(void __iomem *dest, int len) | |
1077 | { | |
1078 | void __iomem *piobuf = dest; | |
1079 | ||
1080 | if ((unsigned long)piobuf & 1) { | |
1081 | sbus_writeb(0, piobuf); | |
1082 | piobuf += 1; | |
1083 | len -= 1; | |
1084 | if (len == 0) | |
1085 | return; | |
1086 | } | |
1087 | if (len == 1) { | |
1088 | sbus_writeb(0, piobuf); | |
1089 | return; | |
1090 | } | |
1091 | if ((unsigned long)piobuf & 2) { | |
1092 | sbus_writew(0, piobuf); | |
1093 | piobuf += 2; | |
1094 | len -= 2; | |
1095 | if (len == 0) | |
1096 | return; | |
1097 | } | |
1098 | while (len >= 4) { | |
1099 | sbus_writel(0, piobuf); | |
1100 | piobuf += 4; | |
1101 | len -= 4; | |
1102 | } | |
1103 | if (len >= 2) { | |
1104 | sbus_writew(0, piobuf); | |
1105 | piobuf += 2; | |
1106 | len -= 2; | |
1107 | } | |
1108 | if (len >= 1) | |
1109 | sbus_writeb(0, piobuf); | |
1110 | } | |
1111 | ||
1112 | static void lance_tx_timeout(struct net_device *dev) | |
1113 | { | |
1114 | struct lance_private *lp = netdev_priv(dev); | |
1115 | ||
1116 | printk(KERN_ERR "%s: transmit timed out, status %04x, reset\n", | |
1117 | dev->name, sbus_readw(lp->lregs + RDP)); | |
1118 | lance_reset(dev); | |
1119 | netif_wake_queue(dev); | |
1120 | } | |
1121 | ||
1122 | static int lance_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
1123 | { | |
1124 | struct lance_private *lp = netdev_priv(dev); | |
1125 | int entry, skblen, len; | |
1126 | ||
1127 | skblen = skb->len; | |
1128 | ||
1129 | len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen; | |
1130 | ||
1131 | spin_lock_irq(&lp->lock); | |
1132 | ||
1133 | lp->stats.tx_bytes += len; | |
1134 | ||
1135 | entry = lp->tx_new & TX_RING_MOD_MASK; | |
1136 | if (lp->pio_buffer) { | |
1137 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
1138 | sbus_writew((-len) | 0xf000, &ib->btx_ring[entry].length); | |
1139 | sbus_writew(0, &ib->btx_ring[entry].misc); | |
1140 | lance_piocopy_from_skb(&ib->tx_buf[entry][0], skb->data, skblen); | |
1141 | if (len != skblen) | |
1142 | lance_piozero(&ib->tx_buf[entry][skblen], len - skblen); | |
1143 | sbus_writeb(LE_T1_POK | LE_T1_OWN, &ib->btx_ring[entry].tmd1_bits); | |
1144 | } else { | |
1145 | struct lance_init_block *ib = lp->init_block_mem; | |
1146 | ib->btx_ring [entry].length = (-len) | 0xf000; | |
1147 | ib->btx_ring [entry].misc = 0; | |
1148 | memcpy((char *)&ib->tx_buf [entry][0], skb->data, skblen); | |
1149 | if (len != skblen) | |
1150 | memset((char *) &ib->tx_buf [entry][skblen], 0, len - skblen); | |
1151 | ib->btx_ring [entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN); | |
1152 | } | |
1153 | ||
1154 | lp->tx_new = TX_NEXT(entry); | |
1155 | ||
1156 | if (TX_BUFFS_AVAIL <= 0) | |
1157 | netif_stop_queue(dev); | |
1158 | ||
1159 | /* Kick the lance: transmit now */ | |
1160 | sbus_writew(LE_C0_INEA | LE_C0_TDMD, lp->lregs + RDP); | |
1161 | ||
1162 | /* Read back CSR to invalidate the E-Cache. | |
1163 | * This is needed, because DMA_DSBL_WR_INV is set. | |
1164 | */ | |
1165 | if (lp->dregs) | |
1166 | sbus_readw(lp->lregs + RDP); | |
1167 | ||
1168 | spin_unlock_irq(&lp->lock); | |
1169 | ||
1170 | dev->trans_start = jiffies; | |
1171 | dev_kfree_skb(skb); | |
6aa20a22 | 1172 | |
1da177e4 LT |
1173 | return 0; |
1174 | } | |
1175 | ||
1176 | static struct net_device_stats *lance_get_stats(struct net_device *dev) | |
1177 | { | |
1178 | struct lance_private *lp = netdev_priv(dev); | |
1179 | ||
1180 | return &lp->stats; | |
1181 | } | |
1182 | ||
1183 | /* taken from the depca driver */ | |
1184 | static void lance_load_multicast(struct net_device *dev) | |
1185 | { | |
1186 | struct lance_private *lp = netdev_priv(dev); | |
1187 | struct dev_mc_list *dmi = dev->mc_list; | |
1188 | char *addrs; | |
1189 | int i; | |
1190 | u32 crc; | |
1191 | u32 val; | |
6aa20a22 | 1192 | |
1da177e4 LT |
1193 | /* set all multicast bits */ |
1194 | if (dev->flags & IFF_ALLMULTI) | |
1195 | val = ~0; | |
1196 | else | |
1197 | val = 0; | |
1198 | ||
1199 | if (lp->pio_buffer) { | |
1200 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
1201 | sbus_writel(val, &ib->filter[0]); | |
1202 | sbus_writel(val, &ib->filter[1]); | |
1203 | } else { | |
1204 | struct lance_init_block *ib = lp->init_block_mem; | |
1205 | ib->filter [0] = val; | |
1206 | ib->filter [1] = val; | |
1207 | } | |
1208 | ||
1209 | if (dev->flags & IFF_ALLMULTI) | |
1210 | return; | |
6aa20a22 | 1211 | |
1da177e4 LT |
1212 | /* Add addresses */ |
1213 | for (i = 0; i < dev->mc_count; i++) { | |
1214 | addrs = dmi->dmi_addr; | |
1215 | dmi = dmi->next; | |
1216 | ||
1217 | /* multicast address? */ | |
1218 | if (!(*addrs & 1)) | |
1219 | continue; | |
1220 | crc = ether_crc_le(6, addrs); | |
1221 | crc = crc >> 26; | |
1222 | if (lp->pio_buffer) { | |
1223 | struct lance_init_block __iomem *ib = lp->init_block_iomem; | |
1224 | u16 __iomem *mcast_table = (u16 __iomem *) &ib->filter; | |
1225 | u16 tmp = sbus_readw(&mcast_table[crc>>4]); | |
1226 | tmp |= 1 << (crc & 0xf); | |
1227 | sbus_writew(tmp, &mcast_table[crc>>4]); | |
1228 | } else { | |
1229 | struct lance_init_block *ib = lp->init_block_mem; | |
1230 | u16 *mcast_table = (u16 *) &ib->filter; | |
1231 | mcast_table [crc >> 4] |= 1 << (crc & 0xf); | |
1232 | } | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | static void lance_set_multicast(struct net_device *dev) | |
1237 | { | |
1238 | struct lance_private *lp = netdev_priv(dev); | |
1239 | struct lance_init_block *ib_mem = lp->init_block_mem; | |
1240 | struct lance_init_block __iomem *ib_iomem = lp->init_block_iomem; | |
1241 | u16 mode; | |
1242 | ||
1243 | if (!netif_running(dev)) | |
1244 | return; | |
1245 | ||
1246 | if (lp->tx_old != lp->tx_new) { | |
1247 | mod_timer(&lp->multicast_timer, jiffies + 4); | |
1248 | netif_wake_queue(dev); | |
1249 | return; | |
1250 | } | |
1251 | ||
1252 | netif_stop_queue(dev); | |
1253 | ||
1254 | STOP_LANCE(lp); | |
1255 | lp->init_ring(dev); | |
1256 | ||
1257 | if (lp->pio_buffer) | |
1258 | mode = sbus_readw(&ib_iomem->mode); | |
1259 | else | |
1260 | mode = ib_mem->mode; | |
1261 | if (dev->flags & IFF_PROMISC) { | |
1262 | mode |= LE_MO_PROM; | |
1263 | if (lp->pio_buffer) | |
1264 | sbus_writew(mode, &ib_iomem->mode); | |
1265 | else | |
1266 | ib_mem->mode = mode; | |
1267 | } else { | |
1268 | mode &= ~LE_MO_PROM; | |
1269 | if (lp->pio_buffer) | |
1270 | sbus_writew(mode, &ib_iomem->mode); | |
1271 | else | |
1272 | ib_mem->mode = mode; | |
1273 | lance_load_multicast(dev); | |
1274 | } | |
1275 | load_csrs(lp); | |
1276 | init_restart_lance(lp); | |
1277 | netif_wake_queue(dev); | |
1278 | } | |
1279 | ||
1280 | static void lance_set_multicast_retry(unsigned long _opaque) | |
1281 | { | |
1282 | struct net_device *dev = (struct net_device *) _opaque; | |
1283 | ||
1284 | lance_set_multicast(dev); | |
1285 | } | |
1286 | ||
1287 | static void lance_free_hwresources(struct lance_private *lp) | |
1288 | { | |
1289 | if (lp->lregs) | |
1290 | sbus_iounmap(lp->lregs, LANCE_REG_SIZE); | |
1291 | if (lp->init_block_iomem) { | |
1292 | sbus_iounmap(lp->init_block_iomem, | |
1293 | sizeof(struct lance_init_block)); | |
1294 | } else if (lp->init_block_mem) { | |
1295 | sbus_free_consistent(lp->sdev, | |
1296 | sizeof(struct lance_init_block), | |
1297 | lp->init_block_mem, | |
1298 | lp->init_block_dvma); | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | /* Ethtool support... */ | |
1303 | static void sparc_lance_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1304 | { | |
1305 | struct lance_private *lp = netdev_priv(dev); | |
1306 | ||
1307 | strcpy(info->driver, "sunlance"); | |
1308 | strcpy(info->version, "2.02"); | |
1309 | sprintf(info->bus_info, "SBUS:%d", | |
1310 | lp->sdev->slot); | |
1311 | } | |
1312 | ||
1313 | static u32 sparc_lance_get_link(struct net_device *dev) | |
1314 | { | |
1315 | /* We really do not keep track of this, but this | |
1316 | * is better than not reporting anything at all. | |
1317 | */ | |
1318 | return 1; | |
1319 | } | |
1320 | ||
7282d491 | 1321 | static const struct ethtool_ops sparc_lance_ethtool_ops = { |
1da177e4 LT |
1322 | .get_drvinfo = sparc_lance_get_drvinfo, |
1323 | .get_link = sparc_lance_get_link, | |
1324 | }; | |
1325 | ||
efdbc1a7 DM |
1326 | static int __devinit sparc_lance_probe_one(struct sbus_dev *sdev, |
1327 | struct sbus_dma *ledma, | |
1328 | struct sbus_dev *lebuffer) | |
1da177e4 LT |
1329 | { |
1330 | static unsigned version_printed; | |
1331 | struct net_device *dev; | |
1332 | struct lance_private *lp; | |
1333 | int i; | |
1334 | ||
1335 | dev = alloc_etherdev(sizeof(struct lance_private) + 8); | |
1336 | if (!dev) | |
1337 | return -ENOMEM; | |
1338 | ||
1339 | lp = netdev_priv(dev); | |
1340 | memset(lp, 0, sizeof(*lp)); | |
1341 | ||
1342 | if (sparc_lance_debug && version_printed++ == 0) | |
1343 | printk (KERN_INFO "%s", version); | |
1344 | ||
1345 | spin_lock_init(&lp->lock); | |
1346 | ||
1347 | /* Copy the IDPROM ethernet address to the device structure, later we | |
1348 | * will copy the address in the device structure to the lance | |
1349 | * initialization block. | |
1350 | */ | |
1351 | for (i = 0; i < 6; i++) | |
1352 | dev->dev_addr[i] = idprom->id_ethaddr[i]; | |
1353 | ||
1354 | /* Get the IO region */ | |
1355 | lp->lregs = sbus_ioremap(&sdev->resource[0], 0, | |
1356 | LANCE_REG_SIZE, lancestr); | |
1357 | if (!lp->lregs) { | |
1358 | printk(KERN_ERR "SunLance: Cannot map registers.\n"); | |
1359 | goto fail; | |
1360 | } | |
1361 | ||
1362 | lp->sdev = sdev; | |
1363 | if (lebuffer) { | |
1364 | /* sanity check */ | |
1365 | if (lebuffer->resource[0].start & 7) { | |
1366 | printk(KERN_ERR "SunLance: ERROR: Rx and Tx rings not on even boundary.\n"); | |
1367 | goto fail; | |
1368 | } | |
1369 | lp->init_block_iomem = | |
1370 | sbus_ioremap(&lebuffer->resource[0], 0, | |
1371 | sizeof(struct lance_init_block), "lebuffer"); | |
1372 | if (!lp->init_block_iomem) { | |
1373 | printk(KERN_ERR "SunLance: Cannot map PIO buffer.\n"); | |
1374 | goto fail; | |
1375 | } | |
1376 | lp->init_block_dvma = 0; | |
1377 | lp->pio_buffer = 1; | |
1378 | lp->init_ring = lance_init_ring_pio; | |
1379 | lp->rx = lance_rx_pio; | |
1380 | lp->tx = lance_tx_pio; | |
1381 | } else { | |
1382 | lp->init_block_mem = | |
1383 | sbus_alloc_consistent(sdev, sizeof(struct lance_init_block), | |
1384 | &lp->init_block_dvma); | |
1385 | if (!lp->init_block_mem || lp->init_block_dvma == 0) { | |
1386 | printk(KERN_ERR "SunLance: Cannot allocate consistent DMA memory.\n"); | |
1387 | goto fail; | |
1388 | } | |
1389 | lp->pio_buffer = 0; | |
1390 | lp->init_ring = lance_init_ring_dvma; | |
1391 | lp->rx = lance_rx_dvma; | |
1392 | lp->tx = lance_tx_dvma; | |
1393 | } | |
1394 | lp->busmaster_regval = prom_getintdefault(sdev->prom_node, | |
1395 | "busmaster-regval", | |
1396 | (LE_C3_BSWP | LE_C3_ACON | | |
1397 | LE_C3_BCON)); | |
1398 | ||
1399 | lp->name = lancestr; | |
1400 | lp->ledma = ledma; | |
1401 | ||
1402 | lp->burst_sizes = 0; | |
1403 | if (lp->ledma) { | |
1404 | char prop[6]; | |
1405 | unsigned int sbmask; | |
1406 | u32 csr; | |
1407 | ||
1408 | /* Find burst-size property for ledma */ | |
1409 | lp->burst_sizes = prom_getintdefault(ledma->sdev->prom_node, | |
1410 | "burst-sizes", 0); | |
1411 | ||
1412 | /* ledma may be capable of fast bursts, but sbus may not. */ | |
1413 | sbmask = prom_getintdefault(ledma->sdev->bus->prom_node, | |
1414 | "burst-sizes", DMA_BURSTBITS); | |
1415 | lp->burst_sizes &= sbmask; | |
1416 | ||
1417 | /* Get the cable-selection property */ | |
1418 | memset(prop, 0, sizeof(prop)); | |
1419 | prom_getstring(ledma->sdev->prom_node, "cable-selection", | |
1420 | prop, sizeof(prop)); | |
1421 | if (prop[0] == 0) { | |
1422 | int topnd, nd; | |
1423 | ||
1424 | printk(KERN_INFO "SunLance: using auto-carrier-detection.\n"); | |
1425 | ||
1426 | /* Is this found at /options .attributes in all | |
1427 | * Prom versions? XXX | |
1428 | */ | |
1429 | topnd = prom_getchild(prom_root_node); | |
1430 | ||
1431 | nd = prom_searchsiblings(topnd, "options"); | |
1432 | if (!nd) | |
1433 | goto no_link_test; | |
1434 | ||
1435 | if (!prom_node_has_property(nd, "tpe-link-test?")) | |
1436 | goto no_link_test; | |
1437 | ||
1438 | memset(prop, 0, sizeof(prop)); | |
1439 | prom_getstring(nd, "tpe-link-test?", prop, | |
1440 | sizeof(prop)); | |
1441 | ||
1442 | if (strcmp(prop, "true")) { | |
1443 | printk(KERN_NOTICE "SunLance: warning: overriding option " | |
1444 | "'tpe-link-test?'\n"); | |
1445 | printk(KERN_NOTICE "SunLance: warning: mail any problems " | |
1446 | "to ecd@skynet.be\n"); | |
1447 | auxio_set_lte(AUXIO_LTE_ON); | |
1448 | } | |
1449 | no_link_test: | |
1450 | lp->auto_select = 1; | |
1451 | lp->tpe = 0; | |
1452 | } else if (!strcmp(prop, "aui")) { | |
1453 | lp->auto_select = 0; | |
1454 | lp->tpe = 0; | |
1455 | } else { | |
1456 | lp->auto_select = 0; | |
1457 | lp->tpe = 1; | |
1458 | } | |
1459 | ||
1460 | lp->dregs = ledma->regs; | |
1461 | ||
1462 | /* Reset ledma */ | |
1463 | csr = sbus_readl(lp->dregs + DMA_CSR); | |
1464 | sbus_writel(csr | DMA_RST_ENET, lp->dregs + DMA_CSR); | |
1465 | udelay(200); | |
1466 | sbus_writel(csr & ~DMA_RST_ENET, lp->dregs + DMA_CSR); | |
1467 | } else | |
1468 | lp->dregs = NULL; | |
1469 | ||
1470 | lp->dev = dev; | |
1471 | SET_MODULE_OWNER(dev); | |
c2d81e63 | 1472 | SET_NETDEV_DEV(dev, &sdev->ofdev.dev); |
1da177e4 LT |
1473 | dev->open = &lance_open; |
1474 | dev->stop = &lance_close; | |
1475 | dev->hard_start_xmit = &lance_start_xmit; | |
1476 | dev->tx_timeout = &lance_tx_timeout; | |
1477 | dev->watchdog_timeo = 5*HZ; | |
1478 | dev->get_stats = &lance_get_stats; | |
1479 | dev->set_multicast_list = &lance_set_multicast; | |
1480 | dev->ethtool_ops = &sparc_lance_ethtool_ops; | |
1481 | ||
1482 | dev->irq = sdev->irqs[0]; | |
1483 | ||
1484 | dev->dma = 0; | |
1485 | ||
1486 | /* We cannot sleep if the chip is busy during a | |
1487 | * multicast list update event, because such events | |
1488 | * can occur from interrupts (ex. IPv6). So we | |
1489 | * use a timer to try again later when necessary. -DaveM | |
1490 | */ | |
1491 | init_timer(&lp->multicast_timer); | |
1492 | lp->multicast_timer.data = (unsigned long) dev; | |
1493 | lp->multicast_timer.function = &lance_set_multicast_retry; | |
1494 | ||
1495 | if (register_netdev(dev)) { | |
1496 | printk(KERN_ERR "SunLance: Cannot register device.\n"); | |
1497 | goto fail; | |
1498 | } | |
1499 | ||
c2d81e63 | 1500 | dev_set_drvdata(&sdev->ofdev.dev, lp); |
1da177e4 LT |
1501 | |
1502 | printk(KERN_INFO "%s: LANCE ", dev->name); | |
1503 | ||
1504 | for (i = 0; i < 6; i++) | |
1505 | printk("%2.2x%c", dev->dev_addr[i], | |
1506 | i == 5 ? ' ': ':'); | |
1507 | printk("\n"); | |
1508 | ||
1509 | return 0; | |
1510 | ||
1511 | fail: | |
1512 | lance_free_hwresources(lp); | |
1513 | free_netdev(dev); | |
1514 | return -ENODEV; | |
1515 | } | |
1516 | ||
1517 | /* On 4m, find the associated dma for the lance chip */ | |
efdbc1a7 | 1518 | static struct sbus_dma * __devinit find_ledma(struct sbus_dev *sdev) |
1da177e4 LT |
1519 | { |
1520 | struct sbus_dma *p; | |
1521 | ||
1522 | for_each_dvma(p) { | |
1523 | if (p->sdev == sdev) | |
1524 | return p; | |
1525 | } | |
1526 | return NULL; | |
1527 | } | |
1528 | ||
1529 | #ifdef CONFIG_SUN4 | |
1530 | ||
1531 | #include <asm/sun4paddr.h> | |
1532 | #include <asm/machines.h> | |
1533 | ||
1534 | /* Find all the lance cards on the system and initialize them */ | |
c2d81e63 | 1535 | static struct sbus_dev sun4_sdev; |
efdbc1a7 | 1536 | static int __devinit sparc_lance_init(void) |
1da177e4 | 1537 | { |
1da177e4 LT |
1538 | if ((idprom->id_machtype == (SM_SUN4|SM_4_330)) || |
1539 | (idprom->id_machtype == (SM_SUN4|SM_4_470))) { | |
93853fd0 | 1540 | memset(&sun4_sdev, 0, sizeof(struct sbus_dev)); |
c2d81e63 DM |
1541 | sun4_sdev.reg_addrs[0].phys_addr = sun4_eth_physaddr; |
1542 | sun4_sdev.irqs[0] = 6; | |
1543 | return sparc_lance_probe_one(&sun4_sdev, NULL, NULL); | |
1da177e4 LT |
1544 | } |
1545 | return -ENODEV; | |
1546 | } | |
1547 | ||
c2d81e63 | 1548 | static int __exit sunlance_sun4_remove(void) |
1da177e4 | 1549 | { |
93853fd0 | 1550 | struct lance_private *lp = dev_get_drvdata(&sun4_sdev.ofdev.dev); |
c2d81e63 DM |
1551 | struct net_device *net_dev = lp->dev; |
1552 | ||
1553 | unregister_netdevice(net_dev); | |
1554 | ||
93853fd0 | 1555 | lance_free_hwresources(lp); |
c2d81e63 DM |
1556 | |
1557 | free_netdev(net_dev); | |
1558 | ||
93853fd0 | 1559 | dev_set_drvdata(&sun4_sdev.ofdev.dev, NULL); |
c2d81e63 | 1560 | |
1da177e4 LT |
1561 | return 0; |
1562 | } | |
1da177e4 | 1563 | |
c2d81e63 DM |
1564 | #else /* !CONFIG_SUN4 */ |
1565 | ||
1566 | static int __devinit sunlance_sbus_probe(struct of_device *dev, const struct of_device_id *match) | |
1da177e4 | 1567 | { |
c2d81e63 | 1568 | struct sbus_dev *sdev = to_sbus_device(&dev->dev); |
c2d81e63 DM |
1569 | int err; |
1570 | ||
404dda85 KH |
1571 | if (sdev->parent) { |
1572 | struct of_device *parent = &sdev->parent->ofdev; | |
1da177e4 | 1573 | |
404dda85 KH |
1574 | if (!strcmp(parent->node->name, "ledma")) { |
1575 | struct sbus_dma *ledma = find_ledma(to_sbus_device(&parent->dev)); | |
1da177e4 | 1576 | |
404dda85 KH |
1577 | err = sparc_lance_probe_one(sdev, ledma, NULL); |
1578 | } else if (!strcmp(parent->node->name, "lebuffer")) { | |
1579 | err = sparc_lance_probe_one(sdev, NULL, to_sbus_device(&parent->dev)); | |
1580 | } else | |
1581 | err = sparc_lance_probe_one(sdev, NULL, NULL); | |
1582 | } else | |
1583 | err = sparc_lance_probe_one(sdev, NULL, NULL); | |
c2d81e63 DM |
1584 | |
1585 | return err; | |
1586 | } | |
1587 | ||
1588 | static int __devexit sunlance_sbus_remove(struct of_device *dev) | |
1589 | { | |
1590 | struct lance_private *lp = dev_get_drvdata(&dev->dev); | |
1591 | struct net_device *net_dev = lp->dev; | |
1592 | ||
1593 | unregister_netdevice(net_dev); | |
1594 | ||
1595 | lance_free_hwresources(lp); | |
1596 | ||
1597 | free_netdev(net_dev); | |
1598 | ||
1599 | dev_set_drvdata(&dev->dev, NULL); | |
1600 | ||
1601 | return 0; | |
1602 | } | |
1603 | ||
1604 | static struct of_device_id sunlance_sbus_match[] = { | |
1605 | { | |
1606 | .name = "le", | |
1607 | }, | |
c2d81e63 DM |
1608 | {}, |
1609 | }; | |
1610 | ||
1611 | MODULE_DEVICE_TABLE(of, sunlance_sbus_match); | |
1612 | ||
1613 | static struct of_platform_driver sunlance_sbus_driver = { | |
1614 | .name = "sunlance", | |
1615 | .match_table = sunlance_sbus_match, | |
1616 | .probe = sunlance_sbus_probe, | |
1617 | .remove = __devexit_p(sunlance_sbus_remove), | |
1618 | }; | |
1619 | ||
1620 | ||
1621 | /* Find all the lance cards on the system and initialize them */ | |
1622 | static int __init sparc_lance_init(void) | |
1623 | { | |
1624 | return of_register_driver(&sunlance_sbus_driver, &sbus_bus_type); | |
1625 | } | |
1626 | #endif /* !CONFIG_SUN4 */ | |
1627 | ||
1628 | static void __exit sparc_lance_exit(void) | |
1629 | { | |
1630 | #ifdef CONFIG_SUN4 | |
1631 | sunlance_sun4_remove(); | |
1632 | #else | |
1633 | of_unregister_driver(&sunlance_sbus_driver); | |
1634 | #endif | |
1da177e4 LT |
1635 | } |
1636 | ||
c2d81e63 DM |
1637 | module_init(sparc_lance_init); |
1638 | module_exit(sparc_lance_exit); |