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path: root/drivers/net/ethernet/amd/7990.c
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Diffstat (limited to 'drivers/net/ethernet/amd/7990.c')
-rw-r--r--drivers/net/ethernet/amd/7990.c836
1 files changed, 422 insertions, 414 deletions
diff --git a/drivers/net/ethernet/amd/7990.c b/drivers/net/ethernet/amd/7990.c
index 65926a956575..72cfff7d23a5 100644
--- a/drivers/net/ethernet/amd/7990.c
+++ b/drivers/net/ethernet/amd/7990.c
@@ -42,9 +42,9 @@
42 42
43#include "7990.h" 43#include "7990.h"
44 44
45#define WRITERAP(lp,x) out_be16(lp->base + LANCE_RAP, (x)) 45#define WRITERAP(lp, x) out_be16(lp->base + LANCE_RAP, (x))
46#define WRITERDP(lp,x) out_be16(lp->base + LANCE_RDP, (x)) 46#define WRITERDP(lp, x) out_be16(lp->base + LANCE_RDP, (x))
47#define READRDP(lp) in_be16(lp->base + LANCE_RDP) 47#define READRDP(lp) in_be16(lp->base + LANCE_RDP)
48 48
49#if defined(CONFIG_HPLANCE) || defined(CONFIG_HPLANCE_MODULE) 49#if defined(CONFIG_HPLANCE) || defined(CONFIG_HPLANCE_MODULE)
50#include "hplance.h" 50#include "hplance.h"
@@ -56,9 +56,9 @@
56#if defined(CONFIG_MVME147_NET) || defined(CONFIG_MVME147_NET_MODULE) 56#if defined(CONFIG_MVME147_NET) || defined(CONFIG_MVME147_NET_MODULE)
57 57
58/* Lossage Factor Nine, Mr Sulu. */ 58/* Lossage Factor Nine, Mr Sulu. */
59#define WRITERAP(lp,x) (lp->writerap(lp,x)) 59#define WRITERAP(lp, x) (lp->writerap(lp, x))
60#define WRITERDP(lp,x) (lp->writerdp(lp,x)) 60#define WRITERDP(lp, x) (lp->writerdp(lp, x))
61#define READRDP(lp) (lp->readrdp(lp)) 61#define READRDP(lp) (lp->readrdp(lp))
62 62
63#else 63#else
64 64
@@ -94,428 +94,436 @@ static inline __u16 READRDP(struct lance_private *lp)
94#ifdef UNDEF 94#ifdef UNDEF
95#define PRINT_RINGS() \ 95#define PRINT_RINGS() \
96do { \ 96do { \
97 int t; \ 97 int t; \
98 for (t=0; t < RX_RING_SIZE; t++) { \ 98 for (t = 0; t < RX_RING_SIZE; t++) { \
99 printk("R%d: @(%02X %04X) len %04X, mblen %04X, bits %02X\n",\ 99 printk("R%d: @(%02X %04X) len %04X, mblen %04X, bits %02X\n", \
100 t, ib->brx_ring[t].rmd1_hadr, ib->brx_ring[t].rmd0,\ 100 t, ib->brx_ring[t].rmd1_hadr, ib->brx_ring[t].rmd0, \
101 ib->brx_ring[t].length,\ 101 ib->brx_ring[t].length, \
102 ib->brx_ring[t].mblength, ib->brx_ring[t].rmd1_bits);\ 102 ib->brx_ring[t].mblength, ib->brx_ring[t].rmd1_bits); \
103 }\ 103 } \
104 for (t=0; t < TX_RING_SIZE; t++) { \ 104 for (t = 0; t < TX_RING_SIZE; t++) { \
105 printk("T%d: @(%02X %04X) len %04X, misc %04X, bits %02X\n",\ 105 printk("T%d: @(%02X %04X) len %04X, misc %04X, bits %02X\n", \
106 t, ib->btx_ring[t].tmd1_hadr, ib->btx_ring[t].tmd0,\ 106 t, ib->btx_ring[t].tmd1_hadr, ib->btx_ring[t].tmd0, \
107 ib->btx_ring[t].length,\ 107 ib->btx_ring[t].length, \
108 ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits);\ 108 ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits); \
109 }\ 109 } \
110} while (0) 110} while (0)
111#else 111#else
112#define PRINT_RINGS() 112#define PRINT_RINGS()
113#endif 113#endif
114 114
115/* Load the CSR registers. The LANCE has to be STOPped when we do this! */ 115/* Load the CSR registers. The LANCE has to be STOPped when we do this! */
116static void load_csrs (struct lance_private *lp) 116static void load_csrs(struct lance_private *lp)
117{ 117{
118 volatile struct lance_init_block *aib = lp->lance_init_block; 118 volatile struct lance_init_block *aib = lp->lance_init_block;
119 int leptr; 119 int leptr;
120 120
121 leptr = LANCE_ADDR (aib); 121 leptr = LANCE_ADDR(aib);
122 122
123 WRITERAP(lp, LE_CSR1); /* load address of init block */ 123 WRITERAP(lp, LE_CSR1); /* load address of init block */
124 WRITERDP(lp, leptr & 0xFFFF); 124 WRITERDP(lp, leptr & 0xFFFF);
125 WRITERAP(lp, LE_CSR2); 125 WRITERAP(lp, LE_CSR2);
126 WRITERDP(lp, leptr >> 16); 126 WRITERDP(lp, leptr >> 16);
127 WRITERAP(lp, LE_CSR3); 127 WRITERAP(lp, LE_CSR3);
128 WRITERDP(lp, lp->busmaster_regval); /* set byteswap/ALEctrl/byte ctrl */ 128 WRITERDP(lp, lp->busmaster_regval); /* set byteswap/ALEctrl/byte ctrl */
129 129
130 /* Point back to csr0 */ 130 /* Point back to csr0 */
131 WRITERAP(lp, LE_CSR0); 131 WRITERAP(lp, LE_CSR0);
132} 132}
133 133
134/* #define to 0 or 1 appropriately */ 134/* #define to 0 or 1 appropriately */
135#define DEBUG_IRING 0 135#define DEBUG_IRING 0
136/* Set up the Lance Rx and Tx rings and the init block */ 136/* Set up the Lance Rx and Tx rings and the init block */
137static void lance_init_ring (struct net_device *dev) 137static void lance_init_ring(struct net_device *dev)
138{ 138{
139 struct lance_private *lp = netdev_priv(dev); 139 struct lance_private *lp = netdev_priv(dev);
140 volatile struct lance_init_block *ib = lp->init_block; 140 volatile struct lance_init_block *ib = lp->init_block;
141 volatile struct lance_init_block *aib; /* for LANCE_ADDR computations */ 141 volatile struct lance_init_block *aib; /* for LANCE_ADDR computations */
142 int leptr; 142 int leptr;
143 int i; 143 int i;
144 144
145 aib = lp->lance_init_block; 145 aib = lp->lance_init_block;
146 146
147 lp->rx_new = lp->tx_new = 0; 147 lp->rx_new = lp->tx_new = 0;
148 lp->rx_old = lp->tx_old = 0; 148 lp->rx_old = lp->tx_old = 0;
149 149
150 ib->mode = LE_MO_PROM; /* normal, enable Tx & Rx */ 150 ib->mode = LE_MO_PROM; /* normal, enable Tx & Rx */
151 151
152 /* Copy the ethernet address to the lance init block 152 /* Copy the ethernet address to the lance init block
153 * Notice that we do a byteswap if we're big endian. 153 * Notice that we do a byteswap if we're big endian.
154 * [I think this is the right criterion; at least, sunlance, 154 * [I think this is the right criterion; at least, sunlance,
155 * a2065 and atarilance do the byteswap and lance.c (PC) doesn't. 155 * a2065 and atarilance do the byteswap and lance.c (PC) doesn't.
156 * However, the datasheet says that the BSWAP bit doesn't affect 156 * However, the datasheet says that the BSWAP bit doesn't affect
157 * the init block, so surely it should be low byte first for 157 * the init block, so surely it should be low byte first for
158 * everybody? Um.] 158 * everybody? Um.]
159 * We could define the ib->physaddr as three 16bit values and 159 * We could define the ib->physaddr as three 16bit values and
160 * use (addr[1] << 8) | addr[0] & co, but this is more efficient. 160 * use (addr[1] << 8) | addr[0] & co, but this is more efficient.
161 */ 161 */
162#ifdef __BIG_ENDIAN 162#ifdef __BIG_ENDIAN
163 ib->phys_addr [0] = dev->dev_addr [1]; 163 ib->phys_addr[0] = dev->dev_addr[1];
164 ib->phys_addr [1] = dev->dev_addr [0]; 164 ib->phys_addr[1] = dev->dev_addr[0];
165 ib->phys_addr [2] = dev->dev_addr [3]; 165 ib->phys_addr[2] = dev->dev_addr[3];
166 ib->phys_addr [3] = dev->dev_addr [2]; 166 ib->phys_addr[3] = dev->dev_addr[2];
167 ib->phys_addr [4] = dev->dev_addr [5]; 167 ib->phys_addr[4] = dev->dev_addr[5];
168 ib->phys_addr [5] = dev->dev_addr [4]; 168 ib->phys_addr[5] = dev->dev_addr[4];
169#else 169#else
170 for (i=0; i<6; i++) 170 for (i = 0; i < 6; i++)
171 ib->phys_addr[i] = dev->dev_addr[i]; 171 ib->phys_addr[i] = dev->dev_addr[i];
172#endif 172#endif
173 173
174 if (DEBUG_IRING) 174 if (DEBUG_IRING)
175 printk ("TX rings:\n"); 175 printk("TX rings:\n");
176 176
177 lp->tx_full = 0; 177 lp->tx_full = 0;
178 /* Setup the Tx ring entries */ 178 /* Setup the Tx ring entries */
179 for (i = 0; i < (1<<lp->lance_log_tx_bufs); i++) { 179 for (i = 0; i < (1 << lp->lance_log_tx_bufs); i++) {
180 leptr = LANCE_ADDR(&aib->tx_buf[i][0]); 180 leptr = LANCE_ADDR(&aib->tx_buf[i][0]);
181 ib->btx_ring [i].tmd0 = leptr; 181 ib->btx_ring[i].tmd0 = leptr;
182 ib->btx_ring [i].tmd1_hadr = leptr >> 16; 182 ib->btx_ring[i].tmd1_hadr = leptr >> 16;
183 ib->btx_ring [i].tmd1_bits = 0; 183 ib->btx_ring[i].tmd1_bits = 0;
184 ib->btx_ring [i].length = 0xf000; /* The ones required by tmd2 */ 184 ib->btx_ring[i].length = 0xf000; /* The ones required by tmd2 */
185 ib->btx_ring [i].misc = 0; 185 ib->btx_ring[i].misc = 0;
186 if (DEBUG_IRING) 186 if (DEBUG_IRING)
187 printk ("%d: 0x%8.8x\n", i, leptr); 187 printk("%d: 0x%8.8x\n", i, leptr);
188 } 188 }
189 189
190 /* Setup the Rx ring entries */ 190 /* Setup the Rx ring entries */
191 if (DEBUG_IRING) 191 if (DEBUG_IRING)
192 printk ("RX rings:\n"); 192 printk("RX rings:\n");
193 for (i = 0; i < (1<<lp->lance_log_rx_bufs); i++) { 193 for (i = 0; i < (1 << lp->lance_log_rx_bufs); i++) {
194 leptr = LANCE_ADDR(&aib->rx_buf[i][0]); 194 leptr = LANCE_ADDR(&aib->rx_buf[i][0]);
195 195
196 ib->brx_ring [i].rmd0 = leptr; 196 ib->brx_ring[i].rmd0 = leptr;
197 ib->brx_ring [i].rmd1_hadr = leptr >> 16; 197 ib->brx_ring[i].rmd1_hadr = leptr >> 16;
198 ib->brx_ring [i].rmd1_bits = LE_R1_OWN; 198 ib->brx_ring[i].rmd1_bits = LE_R1_OWN;
199 /* 0xf000 == bits that must be one (reserved, presumably) */ 199 /* 0xf000 == bits that must be one (reserved, presumably) */
200 ib->brx_ring [i].length = -RX_BUFF_SIZE | 0xf000; 200 ib->brx_ring[i].length = -RX_BUFF_SIZE | 0xf000;
201 ib->brx_ring [i].mblength = 0; 201 ib->brx_ring[i].mblength = 0;
202 if (DEBUG_IRING) 202 if (DEBUG_IRING)
203 printk ("%d: 0x%8.8x\n", i, leptr); 203 printk("%d: 0x%8.8x\n", i, leptr);
204 } 204 }
205 205
206 /* Setup the initialization block */ 206 /* Setup the initialization block */
207 207
208 /* Setup rx descriptor pointer */ 208 /* Setup rx descriptor pointer */
209 leptr = LANCE_ADDR(&aib->brx_ring); 209 leptr = LANCE_ADDR(&aib->brx_ring);
210 ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16); 210 ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
211 ib->rx_ptr = leptr; 211 ib->rx_ptr = leptr;
212 if (DEBUG_IRING) 212 if (DEBUG_IRING)
213 printk ("RX ptr: %8.8x\n", leptr); 213 printk("RX ptr: %8.8x\n", leptr);
214 214
215 /* Setup tx descriptor pointer */ 215 /* Setup tx descriptor pointer */
216 leptr = LANCE_ADDR(&aib->btx_ring); 216 leptr = LANCE_ADDR(&aib->btx_ring);
217 ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16); 217 ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
218 ib->tx_ptr = leptr; 218 ib->tx_ptr = leptr;
219 if (DEBUG_IRING) 219 if (DEBUG_IRING)
220 printk ("TX ptr: %8.8x\n", leptr); 220 printk("TX ptr: %8.8x\n", leptr);
221 221
222 /* Clear the multicast filter */ 222 /* Clear the multicast filter */
223 ib->filter [0] = 0; 223 ib->filter[0] = 0;
224 ib->filter [1] = 0; 224 ib->filter[1] = 0;
225 PRINT_RINGS(); 225 PRINT_RINGS();
226} 226}
227 227
228/* LANCE must be STOPped before we do this, too... */ 228/* LANCE must be STOPped before we do this, too... */
229static int init_restart_lance (struct lance_private *lp) 229static int init_restart_lance(struct lance_private *lp)
230{ 230{
231 int i; 231 int i;
232 232
233 WRITERAP(lp, LE_CSR0); 233 WRITERAP(lp, LE_CSR0);
234 WRITERDP(lp, LE_C0_INIT); 234 WRITERDP(lp, LE_C0_INIT);
235 235
236 /* Need a hook here for sunlance ledma stuff */ 236 /* Need a hook here for sunlance ledma stuff */
237 237
238 /* Wait for the lance to complete initialization */ 238 /* Wait for the lance to complete initialization */
239 for (i = 0; (i < 100) && !(READRDP(lp) & (LE_C0_ERR | LE_C0_IDON)); i++) 239 for (i = 0; (i < 100) && !(READRDP(lp) & (LE_C0_ERR | LE_C0_IDON)); i++)
240 barrier(); 240 barrier();
241 if ((i == 100) || (READRDP(lp) & LE_C0_ERR)) { 241 if ((i == 100) || (READRDP(lp) & LE_C0_ERR)) {
242 printk ("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, READRDP(lp)); 242 printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, READRDP(lp));
243 return -1; 243 return -1;
244 } 244 }
245 245
246 /* Clear IDON by writing a "1", enable interrupts and start lance */ 246 /* Clear IDON by writing a "1", enable interrupts and start lance */
247 WRITERDP(lp, LE_C0_IDON); 247 WRITERDP(lp, LE_C0_IDON);
248 WRITERDP(lp, LE_C0_INEA | LE_C0_STRT); 248 WRITERDP(lp, LE_C0_INEA | LE_C0_STRT);
249 249
250 return 0; 250 return 0;
251} 251}
252 252
253static int lance_reset (struct net_device *dev) 253static int lance_reset(struct net_device *dev)
254{ 254{
255 struct lance_private *lp = netdev_priv(dev); 255 struct lance_private *lp = netdev_priv(dev);
256 int status; 256 int status;
257 257
258 /* Stop the lance */ 258 /* Stop the lance */
259 WRITERAP(lp, LE_CSR0); 259 WRITERAP(lp, LE_CSR0);
260 WRITERDP(lp, LE_C0_STOP); 260 WRITERDP(lp, LE_C0_STOP);
261 261
262 load_csrs (lp); 262 load_csrs(lp);
263 lance_init_ring (dev); 263 lance_init_ring(dev);
264 dev->trans_start = jiffies; /* prevent tx timeout */ 264 dev->trans_start = jiffies; /* prevent tx timeout */
265 status = init_restart_lance (lp); 265 status = init_restart_lance(lp);
266#ifdef DEBUG_DRIVER 266#ifdef DEBUG_DRIVER
267 printk ("Lance restart=%d\n", status); 267 printk("Lance restart=%d\n", status);
268#endif 268#endif
269 return status; 269 return status;
270} 270}
271 271
272static int lance_rx (struct net_device *dev) 272static int lance_rx(struct net_device *dev)
273{ 273{
274 struct lance_private *lp = netdev_priv(dev); 274 struct lance_private *lp = netdev_priv(dev);
275 volatile struct lance_init_block *ib = lp->init_block; 275 volatile struct lance_init_block *ib = lp->init_block;
276 volatile struct lance_rx_desc *rd; 276 volatile struct lance_rx_desc *rd;
277 unsigned char bits; 277 unsigned char bits;
278#ifdef TEST_HITS 278#ifdef TEST_HITS
279 int i; 279 int i;
280#endif 280#endif
281 281
282#ifdef TEST_HITS 282#ifdef TEST_HITS
283 printk ("["); 283 printk("[");
284 for (i = 0; i < RX_RING_SIZE; i++) { 284 for (i = 0; i < RX_RING_SIZE; i++) {
285 if (i == lp->rx_new) 285 if (i == lp->rx_new)
286 printk ("%s", 286 printk("%s",
287 ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "_" : "X"); 287 ib->brx_ring[i].rmd1_bits & LE_R1_OWN ? "_" : "X");
288 else 288 else
289 printk ("%s", 289 printk("%s",
290 ib->brx_ring [i].rmd1_bits & LE_R1_OWN ? "." : "1"); 290 ib->brx_ring[i].rmd1_bits & LE_R1_OWN ? "." : "1");
291 } 291 }
292 printk ("]"); 292 printk("]");
293#endif 293#endif
294#ifdef CONFIG_HP300 294#ifdef CONFIG_HP300
295 blinken_leds(0x40, 0); 295 blinken_leds(0x40, 0);
296#endif 296#endif
297 WRITERDP(lp, LE_C0_RINT | LE_C0_INEA); /* ack Rx int, reenable ints */ 297 WRITERDP(lp, LE_C0_RINT | LE_C0_INEA); /* ack Rx int, reenable ints */
298 for (rd = &ib->brx_ring [lp->rx_new]; /* For each Rx ring we own... */ 298 for (rd = &ib->brx_ring[lp->rx_new]; /* For each Rx ring we own... */
299 !((bits = rd->rmd1_bits) & LE_R1_OWN); 299 !((bits = rd->rmd1_bits) & LE_R1_OWN);
300 rd = &ib->brx_ring [lp->rx_new]) { 300 rd = &ib->brx_ring[lp->rx_new]) {
301 301
302 /* We got an incomplete frame? */ 302 /* We got an incomplete frame? */
303 if ((bits & LE_R1_POK) != LE_R1_POK) { 303 if ((bits & LE_R1_POK) != LE_R1_POK) {
304 dev->stats.rx_over_errors++; 304 dev->stats.rx_over_errors++;
305 dev->stats.rx_errors++; 305 dev->stats.rx_errors++;
306 continue; 306 continue;
307 } else if (bits & LE_R1_ERR) { 307 } else if (bits & LE_R1_ERR) {
308 /* Count only the end frame as a rx error, 308 /* Count only the end frame as a rx error,
309 * not the beginning 309 * not the beginning
310 */ 310 */
311 if (bits & LE_R1_BUF) dev->stats.rx_fifo_errors++; 311 if (bits & LE_R1_BUF)
312 if (bits & LE_R1_CRC) dev->stats.rx_crc_errors++; 312 dev->stats.rx_fifo_errors++;
313 if (bits & LE_R1_OFL) dev->stats.rx_over_errors++; 313 if (bits & LE_R1_CRC)
314 if (bits & LE_R1_FRA) dev->stats.rx_frame_errors++; 314 dev->stats.rx_crc_errors++;
315 if (bits & LE_R1_EOP) dev->stats.rx_errors++; 315 if (bits & LE_R1_OFL)
316 } else { 316 dev->stats.rx_over_errors++;
317 if (bits & LE_R1_FRA)
318 dev->stats.rx_frame_errors++;
319 if (bits & LE_R1_EOP)
320 dev->stats.rx_errors++;
321 } else {
317 int len = (rd->mblength & 0xfff) - 4; 322 int len = (rd->mblength & 0xfff) - 4;
318 struct sk_buff *skb = netdev_alloc_skb(dev, len + 2); 323 struct sk_buff *skb = netdev_alloc_skb(dev, len + 2);
319 324
320 if (!skb) { 325 if (!skb) {
321 dev->stats.rx_dropped++; 326 dev->stats.rx_dropped++;
322 rd->mblength = 0; 327 rd->mblength = 0;
323 rd->rmd1_bits = LE_R1_OWN; 328 rd->rmd1_bits = LE_R1_OWN;
324 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; 329 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
325 return 0; 330 return 0;
326 } 331 }
327 332
328 skb_reserve (skb, 2); /* 16 byte align */ 333 skb_reserve(skb, 2); /* 16 byte align */
329 skb_put (skb, len); /* make room */ 334 skb_put(skb, len); /* make room */
330 skb_copy_to_linear_data(skb, 335 skb_copy_to_linear_data(skb,
331 (unsigned char *)&(ib->rx_buf [lp->rx_new][0]), 336 (unsigned char *)&(ib->rx_buf[lp->rx_new][0]),
332 len); 337 len);
333 skb->protocol = eth_type_trans (skb, dev); 338 skb->protocol = eth_type_trans(skb, dev);
334 netif_rx (skb); 339 netif_rx(skb);
335 dev->stats.rx_packets++; 340 dev->stats.rx_packets++;
336 dev->stats.rx_bytes += len; 341 dev->stats.rx_bytes += len;
337 } 342 }
338 343
339 /* Return the packet to the pool */ 344 /* Return the packet to the pool */
340 rd->mblength = 0; 345 rd->mblength = 0;
341 rd->rmd1_bits = LE_R1_OWN; 346 rd->rmd1_bits = LE_R1_OWN;
342 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask; 347 lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
343 } 348 }
344 return 0; 349 return 0;
345} 350}
346 351
347static int lance_tx (struct net_device *dev) 352static int lance_tx(struct net_device *dev)
348{ 353{
349 struct lance_private *lp = netdev_priv(dev); 354 struct lance_private *lp = netdev_priv(dev);
350 volatile struct lance_init_block *ib = lp->init_block; 355 volatile struct lance_init_block *ib = lp->init_block;
351 volatile struct lance_tx_desc *td; 356 volatile struct lance_tx_desc *td;
352 int i, j; 357 int i, j;
353 int status; 358 int status;
354 359
355#ifdef CONFIG_HP300 360#ifdef CONFIG_HP300
356 blinken_leds(0x80, 0); 361 blinken_leds(0x80, 0);
357#endif 362#endif
358 /* csr0 is 2f3 */ 363 /* csr0 is 2f3 */
359 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA); 364 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA);
360 /* csr0 is 73 */ 365 /* csr0 is 73 */
361 366
362 j = lp->tx_old; 367 j = lp->tx_old;
363 for (i = j; i != lp->tx_new; i = j) { 368 for (i = j; i != lp->tx_new; i = j) {
364 td = &ib->btx_ring [i]; 369 td = &ib->btx_ring[i];
365 370
366 /* If we hit a packet not owned by us, stop */ 371 /* If we hit a packet not owned by us, stop */
367 if (td->tmd1_bits & LE_T1_OWN) 372 if (td->tmd1_bits & LE_T1_OWN)
368 break; 373 break;
369 374
370 if (td->tmd1_bits & LE_T1_ERR) { 375 if (td->tmd1_bits & LE_T1_ERR) {
371 status = td->misc; 376 status = td->misc;
372 377
373 dev->stats.tx_errors++; 378 dev->stats.tx_errors++;
374 if (status & LE_T3_RTY) dev->stats.tx_aborted_errors++; 379 if (status & LE_T3_RTY)
375 if (status & LE_T3_LCOL) dev->stats.tx_window_errors++; 380 dev->stats.tx_aborted_errors++;
376 381 if (status & LE_T3_LCOL)
377 if (status & LE_T3_CLOS) { 382 dev->stats.tx_window_errors++;
378 dev->stats.tx_carrier_errors++; 383
379 if (lp->auto_select) { 384 if (status & LE_T3_CLOS) {
380 lp->tpe = 1 - lp->tpe; 385 dev->stats.tx_carrier_errors++;
381 printk("%s: Carrier Lost, trying %s\n", 386 if (lp->auto_select) {
382 dev->name, lp->tpe?"TPE":"AUI"); 387 lp->tpe = 1 - lp->tpe;
383 /* Stop the lance */ 388 printk("%s: Carrier Lost, trying %s\n",
384 WRITERAP(lp, LE_CSR0); 389 dev->name,
385 WRITERDP(lp, LE_C0_STOP); 390 lp->tpe ? "TPE" : "AUI");
386 lance_init_ring (dev); 391 /* Stop the lance */
387 load_csrs (lp); 392 WRITERAP(lp, LE_CSR0);
388 init_restart_lance (lp); 393 WRITERDP(lp, LE_C0_STOP);
389 return 0; 394 lance_init_ring(dev);
390 } 395 load_csrs(lp);
391 } 396 init_restart_lance(lp);
392 397 return 0;
393 /* buffer errors and underflows turn off the transmitter */ 398 }
394 /* Restart the adapter */ 399 }
395 if (status & (LE_T3_BUF|LE_T3_UFL)) { 400
396 dev->stats.tx_fifo_errors++; 401 /* buffer errors and underflows turn off the transmitter */
397 402 /* Restart the adapter */
398 printk ("%s: Tx: ERR_BUF|ERR_UFL, restarting\n", 403 if (status & (LE_T3_BUF|LE_T3_UFL)) {
399 dev->name); 404 dev->stats.tx_fifo_errors++;
400 /* Stop the lance */ 405
401 WRITERAP(lp, LE_CSR0); 406 printk("%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
402 WRITERDP(lp, LE_C0_STOP); 407 dev->name);
403 lance_init_ring (dev); 408 /* Stop the lance */
404 load_csrs (lp); 409 WRITERAP(lp, LE_CSR0);
405 init_restart_lance (lp); 410 WRITERDP(lp, LE_C0_STOP);
406 return 0; 411 lance_init_ring(dev);
407 } 412 load_csrs(lp);
408 } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) { 413 init_restart_lance(lp);
409 /* 414 return 0;
410 * So we don't count the packet more than once. 415 }
411 */ 416 } else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {
412 td->tmd1_bits &= ~(LE_T1_POK); 417 /*
413 418 * So we don't count the packet more than once.
414 /* One collision before packet was sent. */ 419 */
415 if (td->tmd1_bits & LE_T1_EONE) 420 td->tmd1_bits &= ~(LE_T1_POK);
416 dev->stats.collisions++; 421
417 422 /* One collision before packet was sent. */
418 /* More than one collision, be optimistic. */ 423 if (td->tmd1_bits & LE_T1_EONE)
419 if (td->tmd1_bits & LE_T1_EMORE) 424 dev->stats.collisions++;
420 dev->stats.collisions += 2; 425
421 426 /* More than one collision, be optimistic. */
422 dev->stats.tx_packets++; 427 if (td->tmd1_bits & LE_T1_EMORE)
423 } 428 dev->stats.collisions += 2;
424 429
425 j = (j + 1) & lp->tx_ring_mod_mask; 430 dev->stats.tx_packets++;
426 } 431 }
427 lp->tx_old = j; 432
428 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA); 433 j = (j + 1) & lp->tx_ring_mod_mask;
429 return 0; 434 }
435 lp->tx_old = j;
436 WRITERDP(lp, LE_C0_TINT | LE_C0_INEA);
437 return 0;
430} 438}
431 439
432static irqreturn_t 440static irqreturn_t
433lance_interrupt (int irq, void *dev_id) 441lance_interrupt(int irq, void *dev_id)
434{ 442{
435 struct net_device *dev = (struct net_device *)dev_id; 443 struct net_device *dev = (struct net_device *)dev_id;
436 struct lance_private *lp = netdev_priv(dev); 444 struct lance_private *lp = netdev_priv(dev);
437 int csr0; 445 int csr0;
438 446
439 spin_lock (&lp->devlock); 447 spin_lock(&lp->devlock);
440 448
441 WRITERAP(lp, LE_CSR0); /* LANCE Controller Status */ 449 WRITERAP(lp, LE_CSR0); /* LANCE Controller Status */
442 csr0 = READRDP(lp); 450 csr0 = READRDP(lp);
443 451
444 PRINT_RINGS(); 452 PRINT_RINGS();
445 453
446 if (!(csr0 & LE_C0_INTR)) { /* Check if any interrupt has */ 454 if (!(csr0 & LE_C0_INTR)) { /* Check if any interrupt has */
447 spin_unlock (&lp->devlock); 455 spin_unlock(&lp->devlock);
448 return IRQ_NONE; /* been generated by the Lance. */ 456 return IRQ_NONE; /* been generated by the Lance. */
449 } 457 }
450 458
451 /* Acknowledge all the interrupt sources ASAP */ 459 /* Acknowledge all the interrupt sources ASAP */
452 WRITERDP(lp, csr0 & ~(LE_C0_INEA|LE_C0_TDMD|LE_C0_STOP|LE_C0_STRT|LE_C0_INIT)); 460 WRITERDP(lp, csr0 & ~(LE_C0_INEA|LE_C0_TDMD|LE_C0_STOP|LE_C0_STRT|LE_C0_INIT));
453 461
454 if ((csr0 & LE_C0_ERR)) { 462 if ((csr0 & LE_C0_ERR)) {
455 /* Clear the error condition */ 463 /* Clear the error condition */
456 WRITERDP(lp, LE_C0_BABL|LE_C0_ERR|LE_C0_MISS|LE_C0_INEA); 464 WRITERDP(lp, LE_C0_BABL|LE_C0_ERR|LE_C0_MISS|LE_C0_INEA);
457 } 465 }
458 466
459 if (csr0 & LE_C0_RINT) 467 if (csr0 & LE_C0_RINT)
460 lance_rx (dev); 468 lance_rx(dev);
461 469
462 if (csr0 & LE_C0_TINT) 470 if (csr0 & LE_C0_TINT)
463 lance_tx (dev); 471 lance_tx(dev);
464 472
465 /* Log misc errors. */ 473 /* Log misc errors. */
466 if (csr0 & LE_C0_BABL) 474 if (csr0 & LE_C0_BABL)
467 dev->stats.tx_errors++; /* Tx babble. */ 475 dev->stats.tx_errors++; /* Tx babble. */
468 if (csr0 & LE_C0_MISS) 476 if (csr0 & LE_C0_MISS)
469 dev->stats.rx_errors++; /* Missed a Rx frame. */ 477 dev->stats.rx_errors++; /* Missed a Rx frame. */
470 if (csr0 & LE_C0_MERR) { 478 if (csr0 & LE_C0_MERR) {
471 printk("%s: Bus master arbitration failure, status %4.4x.\n", 479 printk("%s: Bus master arbitration failure, status %4.4x.\n",
472 dev->name, csr0); 480 dev->name, csr0);
473 /* Restart the chip. */ 481 /* Restart the chip. */
474 WRITERDP(lp, LE_C0_STRT); 482 WRITERDP(lp, LE_C0_STRT);
475 } 483 }
476 484
477 if (lp->tx_full && netif_queue_stopped(dev) && (TX_BUFFS_AVAIL >= 0)) { 485 if (lp->tx_full && netif_queue_stopped(dev) && (TX_BUFFS_AVAIL >= 0)) {
478 lp->tx_full = 0; 486 lp->tx_full = 0;
479 netif_wake_queue (dev); 487 netif_wake_queue(dev);
480 } 488 }
481 489
482 WRITERAP(lp, LE_CSR0); 490 WRITERAP(lp, LE_CSR0);
483 WRITERDP(lp, LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA); 491 WRITERDP(lp, LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA);
484 492
485 spin_unlock (&lp->devlock); 493 spin_unlock(&lp->devlock);
486 return IRQ_HANDLED; 494 return IRQ_HANDLED;
487} 495}
488 496
489int lance_open (struct net_device *dev) 497int lance_open(struct net_device *dev)
490{ 498{
491 struct lance_private *lp = netdev_priv(dev); 499 struct lance_private *lp = netdev_priv(dev);
492 int res; 500 int res;
493 501
494 /* Install the Interrupt handler. Or we could shunt this out to specific drivers? */ 502 /* Install the Interrupt handler. Or we could shunt this out to specific drivers? */
495 if (request_irq(lp->irq, lance_interrupt, IRQF_SHARED, lp->name, dev)) 503 if (request_irq(lp->irq, lance_interrupt, IRQF_SHARED, lp->name, dev))
496 return -EAGAIN; 504 return -EAGAIN;
497 505
498 res = lance_reset(dev); 506 res = lance_reset(dev);
499 spin_lock_init(&lp->devlock); 507 spin_lock_init(&lp->devlock);
500 netif_start_queue (dev); 508 netif_start_queue(dev);
501 509
502 return res; 510 return res;
503} 511}
504EXPORT_SYMBOL_GPL(lance_open); 512EXPORT_SYMBOL_GPL(lance_open);
505 513
506int lance_close (struct net_device *dev) 514int lance_close(struct net_device *dev)
507{ 515{
508 struct lance_private *lp = netdev_priv(dev); 516 struct lance_private *lp = netdev_priv(dev);
509 517
510 netif_stop_queue (dev); 518 netif_stop_queue(dev);
511 519
512 /* Stop the LANCE */ 520 /* Stop the LANCE */
513 WRITERAP(lp, LE_CSR0); 521 WRITERAP(lp, LE_CSR0);
514 WRITERDP(lp, LE_C0_STOP); 522 WRITERDP(lp, LE_C0_STOP);
515 523
516 free_irq(lp->irq, dev); 524 free_irq(lp->irq, dev);
517 525
518 return 0; 526 return 0;
519} 527}
520EXPORT_SYMBOL_GPL(lance_close); 528EXPORT_SYMBOL_GPL(lance_close);
521 529
@@ -524,122 +532,122 @@ void lance_tx_timeout(struct net_device *dev)
524 printk("lance_tx_timeout\n"); 532 printk("lance_tx_timeout\n");
525 lance_reset(dev); 533 lance_reset(dev);
526 dev->trans_start = jiffies; /* prevent tx timeout */ 534 dev->trans_start = jiffies; /* prevent tx timeout */
527 netif_wake_queue (dev); 535 netif_wake_queue(dev);
528} 536}
529EXPORT_SYMBOL_GPL(lance_tx_timeout); 537EXPORT_SYMBOL_GPL(lance_tx_timeout);
530 538
531int lance_start_xmit (struct sk_buff *skb, struct net_device *dev) 539int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
532{ 540{
533 struct lance_private *lp = netdev_priv(dev); 541 struct lance_private *lp = netdev_priv(dev);
534 volatile struct lance_init_block *ib = lp->init_block; 542 volatile struct lance_init_block *ib = lp->init_block;
535 int entry, skblen, len; 543 int entry, skblen, len;
536 static int outs; 544 static int outs;
537 unsigned long flags; 545 unsigned long flags;
538 546
539 if (!TX_BUFFS_AVAIL) 547 if (!TX_BUFFS_AVAIL)
540 return NETDEV_TX_LOCKED; 548 return NETDEV_TX_LOCKED;
541 549
542 netif_stop_queue (dev); 550 netif_stop_queue(dev);
543 551
544 skblen = skb->len; 552 skblen = skb->len;
545 553
546#ifdef DEBUG_DRIVER 554#ifdef DEBUG_DRIVER
547 /* dump the packet */ 555 /* dump the packet */
548 { 556 {
549 int i; 557 int i;
550 558
551 for (i = 0; i < 64; i++) { 559 for (i = 0; i < 64; i++) {
552 if ((i % 16) == 0) 560 if ((i % 16) == 0)
553 printk ("\n"); 561 printk("\n");
554 printk ("%2.2x ", skb->data [i]); 562 printk("%2.2x ", skb->data[i]);
555 } 563 }
556 } 564 }
557#endif 565#endif
558 len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen; 566 len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
559 entry = lp->tx_new & lp->tx_ring_mod_mask; 567 entry = lp->tx_new & lp->tx_ring_mod_mask;
560 ib->btx_ring [entry].length = (-len) | 0xf000; 568 ib->btx_ring[entry].length = (-len) | 0xf000;
561 ib->btx_ring [entry].misc = 0; 569 ib->btx_ring[entry].misc = 0;
562 570
563 if (skb->len < ETH_ZLEN) 571 if (skb->len < ETH_ZLEN)
564 memset((void *)&ib->tx_buf[entry][0], 0, ETH_ZLEN); 572 memset((void *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
565 skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen); 573 skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen);
566 574
567 /* Now, give the packet to the lance */ 575 /* Now, give the packet to the lance */
568 ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN); 576 ib->btx_ring[entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
569 lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask; 577 lp->tx_new = (lp->tx_new + 1) & lp->tx_ring_mod_mask;
570 578
571 outs++; 579 outs++;
572 /* Kick the lance: transmit now */ 580 /* Kick the lance: transmit now */
573 WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD); 581 WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD);
574 dev_kfree_skb (skb); 582 dev_kfree_skb(skb);
575 583
576 spin_lock_irqsave (&lp->devlock, flags); 584 spin_lock_irqsave(&lp->devlock, flags);
577 if (TX_BUFFS_AVAIL) 585 if (TX_BUFFS_AVAIL)
578 netif_start_queue (dev); 586 netif_start_queue(dev);
579 else 587 else
580 lp->tx_full = 1; 588 lp->tx_full = 1;
581 spin_unlock_irqrestore (&lp->devlock, flags); 589 spin_unlock_irqrestore(&lp->devlock, flags);
582 590
583 return NETDEV_TX_OK; 591 return NETDEV_TX_OK;
584} 592}
585EXPORT_SYMBOL_GPL(lance_start_xmit); 593EXPORT_SYMBOL_GPL(lance_start_xmit);
586 594
587/* taken from the depca driver via a2065.c */ 595/* taken from the depca driver via a2065.c */
588static void lance_load_multicast (struct net_device *dev) 596static void lance_load_multicast(struct net_device *dev)
589{ 597{
590 struct lance_private *lp = netdev_priv(dev); 598 struct lance_private *lp = netdev_priv(dev);
591 volatile struct lance_init_block *ib = lp->init_block; 599 volatile struct lance_init_block *ib = lp->init_block;
592 volatile u16 *mcast_table = (u16 *)&ib->filter; 600 volatile u16 *mcast_table = (u16 *)&ib->filter;
593 struct netdev_hw_addr *ha; 601 struct netdev_hw_addr *ha;
594 u32 crc; 602 u32 crc;
595 603
596 /* set all multicast bits */ 604 /* set all multicast bits */
597 if (dev->flags & IFF_ALLMULTI){ 605 if (dev->flags & IFF_ALLMULTI) {
598 ib->filter [0] = 0xffffffff; 606 ib->filter[0] = 0xffffffff;
599 ib->filter [1] = 0xffffffff; 607 ib->filter[1] = 0xffffffff;
600 return; 608 return;
601 } 609 }
602 /* clear the multicast filter */ 610 /* clear the multicast filter */
603 ib->filter [0] = 0; 611 ib->filter[0] = 0;
604 ib->filter [1] = 0; 612 ib->filter[1] = 0;
605 613
606 /* Add addresses */ 614 /* Add addresses */
607 netdev_for_each_mc_addr(ha, dev) { 615 netdev_for_each_mc_addr(ha, dev) {
608 crc = ether_crc_le(6, ha->addr); 616 crc = ether_crc_le(6, ha->addr);
609 crc = crc >> 26; 617 crc = crc >> 26;
610 mcast_table [crc >> 4] |= 1 << (crc & 0xf); 618 mcast_table[crc >> 4] |= 1 << (crc & 0xf);
611 } 619 }
612} 620}
613 621
614 622
615void lance_set_multicast (struct net_device *dev) 623void lance_set_multicast(struct net_device *dev)
616{ 624{
617 struct lance_private *lp = netdev_priv(dev); 625 struct lance_private *lp = netdev_priv(dev);
618 volatile struct lance_init_block *ib = lp->init_block; 626 volatile struct lance_init_block *ib = lp->init_block;
619 int stopped; 627 int stopped;
620 628
621 stopped = netif_queue_stopped(dev); 629 stopped = netif_queue_stopped(dev);
622 if (!stopped) 630 if (!stopped)
623 netif_stop_queue (dev); 631 netif_stop_queue(dev);
624
625 while (lp->tx_old != lp->tx_new)
626 schedule();
627 632
628 WRITERAP(lp, LE_CSR0); 633 while (lp->tx_old != lp->tx_new)
629 WRITERDP(lp, LE_C0_STOP); 634 schedule();
630 lance_init_ring (dev);
631 635
632 if (dev->flags & IFF_PROMISC) { 636 WRITERAP(lp, LE_CSR0);
633 ib->mode |= LE_MO_PROM; 637 WRITERDP(lp, LE_C0_STOP);
634 } else { 638 lance_init_ring(dev);
635 ib->mode &= ~LE_MO_PROM; 639
636 lance_load_multicast (dev); 640 if (dev->flags & IFF_PROMISC) {
637 } 641 ib->mode |= LE_MO_PROM;
638 load_csrs (lp); 642 } else {
639 init_restart_lance (lp); 643 ib->mode &= ~LE_MO_PROM;
644 lance_load_multicast(dev);
645 }
646 load_csrs(lp);
647 init_restart_lance(lp);
640 648
641 if (!stopped) 649 if (!stopped)
642 netif_start_queue (dev); 650 netif_start_queue(dev);
643} 651}
644EXPORT_SYMBOL_GPL(lance_set_multicast); 652EXPORT_SYMBOL_GPL(lance_set_multicast);
645 653
@@ -648,10 +656,10 @@ void lance_poll(struct net_device *dev)
648{ 656{
649 struct lance_private *lp = netdev_priv(dev); 657 struct lance_private *lp = netdev_priv(dev);
650 658
651 spin_lock (&lp->devlock); 659 spin_lock(&lp->devlock);
652 WRITERAP(lp, LE_CSR0); 660 WRITERAP(lp, LE_CSR0);
653 WRITERDP(lp, LE_C0_STRT); 661 WRITERDP(lp, LE_C0_STRT);
654 spin_unlock (&lp->devlock); 662 spin_unlock(&lp->devlock);
655 lance_interrupt(dev->irq, dev); 663 lance_interrupt(dev->irq, dev);
656} 664}
657#endif 665#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 19:51:29 -0500