FreeBSD/Linux Kernel Cross Reference
sys/dev/ti/if_ti.c
1 /*-
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * Alteon Networks Tigon PCI gigabit ethernet driver for FreeBSD.
35 * Manuals, sample driver and firmware source kits are available
36 * from http://www.alteon.com/support/openkits.
37 *
38 * Written by Bill Paul <wpaul@ctr.columbia.edu>
39 * Electrical Engineering Department
40 * Columbia University, New York City
41 */
42
43 /*
44 * The Alteon Networks Tigon chip contains an embedded R4000 CPU,
45 * gigabit MAC, dual DMA channels and a PCI interface unit. NICs
46 * using the Tigon may have anywhere from 512K to 2MB of SRAM. The
47 * Tigon supports hardware IP, TCP and UCP checksumming, multicast
48 * filtering and jumbo (9014 byte) frames. The hardware is largely
49 * controlled by firmware, which must be loaded into the NIC during
50 * initialization.
51 *
52 * The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware
53 * revision, which supports new features such as extended commands,
54 * extended jumbo receive ring desciptors and a mini receive ring.
55 *
56 * Alteon Networks is to be commended for releasing such a vast amount
57 * of development material for the Tigon NIC without requiring an NDA
58 * (although they really should have done it a long time ago). With
59 * any luck, the other vendors will finally wise up and follow Alteon's
60 * stellar example.
61 *
62 * The firmware for the Tigon 1 and 2 NICs is compiled directly into
63 * this driver by #including it as a C header file. This bloats the
64 * driver somewhat, but it's the easiest method considering that the
65 * driver code and firmware code need to be kept in sync. The source
66 * for the firmware is not provided with the FreeBSD distribution since
67 * compiling it requires a GNU toolchain targeted for mips-sgi-irix5.3.
68 *
69 * The following people deserve special thanks:
70 * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board
71 * for testing
72 * - Raymond Lee of Netgear, for providing a pair of Netgear
73 * GA620 Tigon 2 boards for testing
74 * - Ulf Zimmermann, for bringing the GA260 to my attention and
75 * convincing me to write this driver.
76 * - Andrew Gallatin for providing FreeBSD/Alpha support.
77 */
78
79 #include <sys/cdefs.h>
80 __FBSDID("$FreeBSD$");
81
82 #include "opt_ti.h"
83
84 #include <sys/param.h>
85 #include <sys/systm.h>
86 #include <sys/sockio.h>
87 #include <sys/mbuf.h>
88 #include <sys/malloc.h>
89 #include <sys/kernel.h>
90 #include <sys/module.h>
91 #include <sys/socket.h>
92 #include <sys/queue.h>
93 #include <sys/conf.h>
94 #include <sys/sf_buf.h>
95
96 #include <net/if.h>
97 #include <net/if_arp.h>
98 #include <net/ethernet.h>
99 #include <net/if_dl.h>
100 #include <net/if_media.h>
101 #include <net/if_types.h>
102 #include <net/if_vlan_var.h>
103
104 #include <net/bpf.h>
105
106 #include <netinet/in_systm.h>
107 #include <netinet/in.h>
108 #include <netinet/ip.h>
109
110 #include <machine/bus.h>
111 #include <machine/resource.h>
112 #include <sys/bus.h>
113 #include <sys/rman.h>
114
115 #ifdef TI_SF_BUF_JUMBO
116 #include <vm/vm.h>
117 #include <vm/vm_page.h>
118 #endif
119
120 #include <dev/pci/pcireg.h>
121 #include <dev/pci/pcivar.h>
122
123 #include <sys/tiio.h>
124 #include <dev/ti/if_tireg.h>
125 #include <dev/ti/ti_fw.h>
126 #include <dev/ti/ti_fw2.h>
127
128 #include <sys/sysctl.h>
129
130 #define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
131 /*
132 * We can only turn on header splitting if we're using extended receive
133 * BDs.
134 */
135 #if defined(TI_JUMBO_HDRSPLIT) && !defined(TI_SF_BUF_JUMBO)
136 #error "options TI_JUMBO_HDRSPLIT requires TI_SF_BUF_JUMBO"
137 #endif /* TI_JUMBO_HDRSPLIT && !TI_SF_BUF_JUMBO */
138
139 typedef enum {
140 TI_SWAP_HTON,
141 TI_SWAP_NTOH
142 } ti_swap_type;
143
144 /*
145 * Various supported device vendors/types and their names.
146 */
147
148 static const struct ti_type ti_devs[] = {
149 { ALT_VENDORID, ALT_DEVICEID_ACENIC,
150 "Alteon AceNIC 1000baseSX Gigabit Ethernet" },
151 { ALT_VENDORID, ALT_DEVICEID_ACENIC_COPPER,
152 "Alteon AceNIC 1000baseT Gigabit Ethernet" },
153 { TC_VENDORID, TC_DEVICEID_3C985,
154 "3Com 3c985-SX Gigabit Ethernet" },
155 { NG_VENDORID, NG_DEVICEID_GA620,
156 "Netgear GA620 1000baseSX Gigabit Ethernet" },
157 { NG_VENDORID, NG_DEVICEID_GA620T,
158 "Netgear GA620 1000baseT Gigabit Ethernet" },
159 { SGI_VENDORID, SGI_DEVICEID_TIGON,
160 "Silicon Graphics Gigabit Ethernet" },
161 { DEC_VENDORID, DEC_DEVICEID_FARALLON_PN9000SX,
162 "Farallon PN9000SX Gigabit Ethernet" },
163 { 0, 0, NULL }
164 };
165
166
167 static d_open_t ti_open;
168 static d_close_t ti_close;
169 static d_ioctl_t ti_ioctl2;
170
171 static struct cdevsw ti_cdevsw = {
172 .d_version = D_VERSION,
173 .d_flags = 0,
174 .d_open = ti_open,
175 .d_close = ti_close,
176 .d_ioctl = ti_ioctl2,
177 .d_name = "ti",
178 };
179
180 static int ti_probe(device_t);
181 static int ti_attach(device_t);
182 static int ti_detach(device_t);
183 static void ti_txeof(struct ti_softc *);
184 static void ti_rxeof(struct ti_softc *);
185
186 static void ti_stats_update(struct ti_softc *);
187 static int ti_encap(struct ti_softc *, struct mbuf **);
188
189 static void ti_intr(void *);
190 static void ti_start(struct ifnet *);
191 static void ti_start_locked(struct ifnet *);
192 static int ti_ioctl(struct ifnet *, u_long, caddr_t);
193 static void ti_init(void *);
194 static void ti_init_locked(void *);
195 static void ti_init2(struct ti_softc *);
196 static void ti_stop(struct ti_softc *);
197 static void ti_watchdog(void *);
198 static int ti_shutdown(device_t);
199 static int ti_ifmedia_upd(struct ifnet *);
200 static int ti_ifmedia_upd_locked(struct ti_softc *);
201 static void ti_ifmedia_sts(struct ifnet *, struct ifmediareq *);
202
203 static uint32_t ti_eeprom_putbyte(struct ti_softc *, int);
204 static uint8_t ti_eeprom_getbyte(struct ti_softc *, int, uint8_t *);
205 static int ti_read_eeprom(struct ti_softc *, caddr_t, int, int);
206
207 static void ti_add_mcast(struct ti_softc *, struct ether_addr *);
208 static void ti_del_mcast(struct ti_softc *, struct ether_addr *);
209 static void ti_setmulti(struct ti_softc *);
210
211 static void ti_mem_read(struct ti_softc *, uint32_t, uint32_t, void *);
212 static void ti_mem_write(struct ti_softc *, uint32_t, uint32_t, void *);
213 static void ti_mem_zero(struct ti_softc *, uint32_t, uint32_t);
214 static int ti_copy_mem(struct ti_softc *, uint32_t, uint32_t, caddr_t, int,
215 int);
216 static int ti_copy_scratch(struct ti_softc *, uint32_t, uint32_t, caddr_t,
217 int, int, int);
218 static int ti_bcopy_swap(const void *, void *, size_t, ti_swap_type);
219 static void ti_loadfw(struct ti_softc *);
220 static void ti_cmd(struct ti_softc *, struct ti_cmd_desc *);
221 static void ti_cmd_ext(struct ti_softc *, struct ti_cmd_desc *, caddr_t, int);
222 static void ti_handle_events(struct ti_softc *);
223 static void ti_dma_map_addr(void *, bus_dma_segment_t *, int, int);
224 static int ti_dma_alloc(struct ti_softc *);
225 static void ti_dma_free(struct ti_softc *);
226 static int ti_dma_ring_alloc(struct ti_softc *, bus_size_t, bus_size_t,
227 bus_dma_tag_t *, uint8_t **, bus_dmamap_t *, bus_addr_t *, const char *);
228 static void ti_dma_ring_free(struct ti_softc *, bus_dma_tag_t *, uint8_t **,
229 bus_dmamap_t *);
230 static int ti_newbuf_std(struct ti_softc *, int);
231 static int ti_newbuf_mini(struct ti_softc *, int);
232 static int ti_newbuf_jumbo(struct ti_softc *, int, struct mbuf *);
233 static int ti_init_rx_ring_std(struct ti_softc *);
234 static void ti_free_rx_ring_std(struct ti_softc *);
235 static int ti_init_rx_ring_jumbo(struct ti_softc *);
236 static void ti_free_rx_ring_jumbo(struct ti_softc *);
237 static int ti_init_rx_ring_mini(struct ti_softc *);
238 static void ti_free_rx_ring_mini(struct ti_softc *);
239 static void ti_free_tx_ring(struct ti_softc *);
240 static int ti_init_tx_ring(struct ti_softc *);
241 static void ti_discard_std(struct ti_softc *, int);
242 #ifndef TI_SF_BUF_JUMBO
243 static void ti_discard_jumbo(struct ti_softc *, int);
244 #endif
245 static void ti_discard_mini(struct ti_softc *, int);
246
247 static int ti_64bitslot_war(struct ti_softc *);
248 static int ti_chipinit(struct ti_softc *);
249 static int ti_gibinit(struct ti_softc *);
250
251 #ifdef TI_JUMBO_HDRSPLIT
252 static __inline void ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len,
253 int idx);
254 #endif /* TI_JUMBO_HDRSPLIT */
255
256 static void ti_sysctl_node(struct ti_softc *);
257
258 static device_method_t ti_methods[] = {
259 /* Device interface */
260 DEVMETHOD(device_probe, ti_probe),
261 DEVMETHOD(device_attach, ti_attach),
262 DEVMETHOD(device_detach, ti_detach),
263 DEVMETHOD(device_shutdown, ti_shutdown),
264 { 0, 0 }
265 };
266
267 static driver_t ti_driver = {
268 "ti",
269 ti_methods,
270 sizeof(struct ti_softc)
271 };
272
273 static devclass_t ti_devclass;
274
275 DRIVER_MODULE(ti, pci, ti_driver, ti_devclass, 0, 0);
276 MODULE_DEPEND(ti, pci, 1, 1, 1);
277 MODULE_DEPEND(ti, ether, 1, 1, 1);
278
279 /*
280 * Send an instruction or address to the EEPROM, check for ACK.
281 */
282 static uint32_t
283 ti_eeprom_putbyte(struct ti_softc *sc, int byte)
284 {
285 int i, ack = 0;
286
287 /*
288 * Make sure we're in TX mode.
289 */
290 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
291
292 /*
293 * Feed in each bit and stobe the clock.
294 */
295 for (i = 0x80; i; i >>= 1) {
296 if (byte & i) {
297 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
298 } else {
299 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
300 }
301 DELAY(1);
302 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
303 DELAY(1);
304 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
305 }
306
307 /*
308 * Turn off TX mode.
309 */
310 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
311
312 /*
313 * Check for ack.
314 */
315 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
316 ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN;
317 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
318
319 return (ack);
320 }
321
322 /*
323 * Read a byte of data stored in the EEPROM at address 'addr.'
324 * We have to send two address bytes since the EEPROM can hold
325 * more than 256 bytes of data.
326 */
327 static uint8_t
328 ti_eeprom_getbyte(struct ti_softc *sc, int addr, uint8_t *dest)
329 {
330 int i;
331 uint8_t byte = 0;
332
333 EEPROM_START;
334
335 /*
336 * Send write control code to EEPROM.
337 */
338 if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) {
339 device_printf(sc->ti_dev,
340 "failed to send write command, status: %x\n",
341 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
342 return (1);
343 }
344
345 /*
346 * Send first byte of address of byte we want to read.
347 */
348 if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) {
349 device_printf(sc->ti_dev, "failed to send address, status: %x\n",
350 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
351 return (1);
352 }
353 /*
354 * Send second byte address of byte we want to read.
355 */
356 if (ti_eeprom_putbyte(sc, addr & 0xFF)) {
357 device_printf(sc->ti_dev, "failed to send address, status: %x\n",
358 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
359 return (1);
360 }
361
362 EEPROM_STOP;
363 EEPROM_START;
364 /*
365 * Send read control code to EEPROM.
366 */
367 if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) {
368 device_printf(sc->ti_dev,
369 "failed to send read command, status: %x\n",
370 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
371 return (1);
372 }
373
374 /*
375 * Start reading bits from EEPROM.
376 */
377 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
378 for (i = 0x80; i; i >>= 1) {
379 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
380 DELAY(1);
381 if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN)
382 byte |= i;
383 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
384 DELAY(1);
385 }
386
387 EEPROM_STOP;
388
389 /*
390 * No ACK generated for read, so just return byte.
391 */
392
393 *dest = byte;
394
395 return (0);
396 }
397
398 /*
399 * Read a sequence of bytes from the EEPROM.
400 */
401 static int
402 ti_read_eeprom(struct ti_softc *sc, caddr_t dest, int off, int cnt)
403 {
404 int err = 0, i;
405 uint8_t byte = 0;
406
407 for (i = 0; i < cnt; i++) {
408 err = ti_eeprom_getbyte(sc, off + i, &byte);
409 if (err)
410 break;
411 *(dest + i) = byte;
412 }
413
414 return (err ? 1 : 0);
415 }
416
417 /*
418 * NIC memory read function.
419 * Can be used to copy data from NIC local memory.
420 */
421 static void
422 ti_mem_read(struct ti_softc *sc, uint32_t addr, uint32_t len, void *buf)
423 {
424 int segptr, segsize, cnt;
425 char *ptr;
426
427 segptr = addr;
428 cnt = len;
429 ptr = buf;
430
431 while (cnt) {
432 if (cnt < TI_WINLEN)
433 segsize = cnt;
434 else
435 segsize = TI_WINLEN - (segptr % TI_WINLEN);
436 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
437 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
438 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (uint32_t *)ptr,
439 segsize / 4);
440 ptr += segsize;
441 segptr += segsize;
442 cnt -= segsize;
443 }
444 }
445
446
447 /*
448 * NIC memory write function.
449 * Can be used to copy data into NIC local memory.
450 */
451 static void
452 ti_mem_write(struct ti_softc *sc, uint32_t addr, uint32_t len, void *buf)
453 {
454 int segptr, segsize, cnt;
455 char *ptr;
456
457 segptr = addr;
458 cnt = len;
459 ptr = buf;
460
461 while (cnt) {
462 if (cnt < TI_WINLEN)
463 segsize = cnt;
464 else
465 segsize = TI_WINLEN - (segptr % TI_WINLEN);
466 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
467 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
468 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (uint32_t *)ptr,
469 segsize / 4);
470 ptr += segsize;
471 segptr += segsize;
472 cnt -= segsize;
473 }
474 }
475
476 /*
477 * NIC memory read function.
478 * Can be used to clear a section of NIC local memory.
479 */
480 static void
481 ti_mem_zero(struct ti_softc *sc, uint32_t addr, uint32_t len)
482 {
483 int segptr, segsize, cnt;
484
485 segptr = addr;
486 cnt = len;
487
488 while (cnt) {
489 if (cnt < TI_WINLEN)
490 segsize = cnt;
491 else
492 segsize = TI_WINLEN - (segptr % TI_WINLEN);
493 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
494 bus_space_set_region_4(sc->ti_btag, sc->ti_bhandle,
495 TI_WINDOW + (segptr & (TI_WINLEN - 1)), 0, segsize / 4);
496 segptr += segsize;
497 cnt -= segsize;
498 }
499 }
500
501 static int
502 ti_copy_mem(struct ti_softc *sc, uint32_t tigon_addr, uint32_t len,
503 caddr_t buf, int useraddr, int readdata)
504 {
505 int segptr, segsize, cnt;
506 caddr_t ptr;
507 uint32_t origwin;
508 int resid, segresid;
509 int first_pass;
510
511 TI_LOCK_ASSERT(sc);
512
513 /*
514 * At the moment, we don't handle non-aligned cases, we just bail.
515 * If this proves to be a problem, it will be fixed.
516 */
517 if (readdata == 0 && (tigon_addr & 0x3) != 0) {
518 device_printf(sc->ti_dev, "%s: tigon address %#x isn't "
519 "word-aligned\n", __func__, tigon_addr);
520 device_printf(sc->ti_dev, "%s: unaligned writes aren't "
521 "yet supported\n", __func__);
522 return (EINVAL);
523 }
524
525 segptr = tigon_addr & ~0x3;
526 segresid = tigon_addr - segptr;
527
528 /*
529 * This is the non-aligned amount left over that we'll need to
530 * copy.
531 */
532 resid = len & 0x3;
533
534 /* Add in the left over amount at the front of the buffer */
535 resid += segresid;
536
537 cnt = len & ~0x3;
538 /*
539 * If resid + segresid is >= 4, add multiples of 4 to the count and
540 * decrease the residual by that much.
541 */
542 cnt += resid & ~0x3;
543 resid -= resid & ~0x3;
544
545 ptr = buf;
546
547 first_pass = 1;
548
549 /*
550 * Save the old window base value.
551 */
552 origwin = CSR_READ_4(sc, TI_WINBASE);
553
554 while (cnt) {
555 bus_size_t ti_offset;
556
557 if (cnt < TI_WINLEN)
558 segsize = cnt;
559 else
560 segsize = TI_WINLEN - (segptr % TI_WINLEN);
561 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
562
563 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN -1));
564
565 if (readdata) {
566 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
567 ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2);
568 if (useraddr) {
569 /*
570 * Yeah, this is a little on the kludgy
571 * side, but at least this code is only
572 * used for debugging.
573 */
574 ti_bcopy_swap(sc->ti_membuf, sc->ti_membuf2,
575 segsize, TI_SWAP_NTOH);
576
577 TI_UNLOCK(sc);
578 if (first_pass) {
579 copyout(&sc->ti_membuf2[segresid], ptr,
580 segsize - segresid);
581 first_pass = 0;
582 } else
583 copyout(sc->ti_membuf2, ptr, segsize);
584 TI_LOCK(sc);
585 } else {
586 if (first_pass) {
587
588 ti_bcopy_swap(sc->ti_membuf,
589 sc->ti_membuf2, segsize,
590 TI_SWAP_NTOH);
591 TI_UNLOCK(sc);
592 bcopy(&sc->ti_membuf2[segresid], ptr,
593 segsize - segresid);
594 TI_LOCK(sc);
595 first_pass = 0;
596 } else
597 ti_bcopy_swap(sc->ti_membuf, ptr,
598 segsize, TI_SWAP_NTOH);
599 }
600
601 } else {
602 if (useraddr) {
603 TI_UNLOCK(sc);
604 copyin(ptr, sc->ti_membuf2, segsize);
605 TI_LOCK(sc);
606 ti_bcopy_swap(sc->ti_membuf2, sc->ti_membuf,
607 segsize, TI_SWAP_HTON);
608 } else
609 ti_bcopy_swap(ptr, sc->ti_membuf, segsize,
610 TI_SWAP_HTON);
611
612 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
613 ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2);
614 }
615 segptr += segsize;
616 ptr += segsize;
617 cnt -= segsize;
618 }
619
620 /*
621 * Handle leftover, non-word-aligned bytes.
622 */
623 if (resid != 0) {
624 uint32_t tmpval, tmpval2;
625 bus_size_t ti_offset;
626
627 /*
628 * Set the segment pointer.
629 */
630 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
631
632 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN - 1));
633
634 /*
635 * First, grab whatever is in our source/destination.
636 * We'll obviously need this for reads, but also for
637 * writes, since we'll be doing read/modify/write.
638 */
639 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
640 ti_offset, &tmpval, 1);
641
642 /*
643 * Next, translate this from little-endian to big-endian
644 * (at least on i386 boxes).
645 */
646 tmpval2 = ntohl(tmpval);
647
648 if (readdata) {
649 /*
650 * If we're reading, just copy the leftover number
651 * of bytes from the host byte order buffer to
652 * the user's buffer.
653 */
654 if (useraddr) {
655 TI_UNLOCK(sc);
656 copyout(&tmpval2, ptr, resid);
657 TI_LOCK(sc);
658 } else
659 bcopy(&tmpval2, ptr, resid);
660 } else {
661 /*
662 * If we're writing, first copy the bytes to be
663 * written into the network byte order buffer,
664 * leaving the rest of the buffer with whatever was
665 * originally in there. Then, swap the bytes
666 * around into host order and write them out.
667 *
668 * XXX KDM the read side of this has been verified
669 * to work, but the write side of it has not been
670 * verified. So user beware.
671 */
672 if (useraddr) {
673 TI_UNLOCK(sc);
674 copyin(ptr, &tmpval2, resid);
675 TI_LOCK(sc);
676 } else
677 bcopy(ptr, &tmpval2, resid);
678
679 tmpval = htonl(tmpval2);
680
681 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
682 ti_offset, &tmpval, 1);
683 }
684 }
685
686 CSR_WRITE_4(sc, TI_WINBASE, origwin);
687
688 return (0);
689 }
690
691 static int
692 ti_copy_scratch(struct ti_softc *sc, uint32_t tigon_addr, uint32_t len,
693 caddr_t buf, int useraddr, int readdata, int cpu)
694 {
695 uint32_t segptr;
696 int cnt;
697 uint32_t tmpval, tmpval2;
698 caddr_t ptr;
699
700 TI_LOCK_ASSERT(sc);
701
702 /*
703 * At the moment, we don't handle non-aligned cases, we just bail.
704 * If this proves to be a problem, it will be fixed.
705 */
706 if (tigon_addr & 0x3) {
707 device_printf(sc->ti_dev, "%s: tigon address %#x "
708 "isn't word-aligned\n", __func__, tigon_addr);
709 return (EINVAL);
710 }
711
712 if (len & 0x3) {
713 device_printf(sc->ti_dev, "%s: transfer length %d "
714 "isn't word-aligned\n", __func__, len);
715 return (EINVAL);
716 }
717
718 segptr = tigon_addr;
719 cnt = len;
720 ptr = buf;
721
722 while (cnt) {
723 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_ADDR, cpu), segptr);
724
725 if (readdata) {
726 tmpval2 = CSR_READ_4(sc, CPU_REG(TI_SRAM_DATA, cpu));
727
728 tmpval = ntohl(tmpval2);
729
730 /*
731 * Note: I've used this debugging interface
732 * extensively with Alteon's 12.3.15 firmware,
733 * compiled with GCC 2.7.2.1 and binutils 2.9.1.
734 *
735 * When you compile the firmware without
736 * optimization, which is necessary sometimes in
737 * order to properly step through it, you sometimes
738 * read out a bogus value of 0xc0017c instead of
739 * whatever was supposed to be in that scratchpad
740 * location. That value is on the stack somewhere,
741 * but I've never been able to figure out what was
742 * causing the problem.
743 *
744 * The address seems to pop up in random places,
745 * often not in the same place on two subsequent
746 * reads.
747 *
748 * In any case, the underlying data doesn't seem
749 * to be affected, just the value read out.
750 *
751 * KDM, 3/7/2000
752 */
753
754 if (tmpval2 == 0xc0017c)
755 device_printf(sc->ti_dev, "found 0xc0017c at "
756 "%#x (tmpval2)\n", segptr);
757
758 if (tmpval == 0xc0017c)
759 device_printf(sc->ti_dev, "found 0xc0017c at "
760 "%#x (tmpval)\n", segptr);
761
762 if (useraddr)
763 copyout(&tmpval, ptr, 4);
764 else
765 bcopy(&tmpval, ptr, 4);
766 } else {
767 if (useraddr)
768 copyin(ptr, &tmpval2, 4);
769 else
770 bcopy(ptr, &tmpval2, 4);
771
772 tmpval = htonl(tmpval2);
773
774 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_DATA, cpu), tmpval);
775 }
776
777 cnt -= 4;
778 segptr += 4;
779 ptr += 4;
780 }
781
782 return (0);
783 }
784
785 static int
786 ti_bcopy_swap(const void *src, void *dst, size_t len, ti_swap_type swap_type)
787 {
788 const uint8_t *tmpsrc;
789 uint8_t *tmpdst;
790 size_t tmplen;
791
792 if (len & 0x3) {
793 printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n", len);
794 return (-1);
795 }
796
797 tmpsrc = src;
798 tmpdst = dst;
799 tmplen = len;
800
801 while (tmplen) {
802 if (swap_type == TI_SWAP_NTOH)
803 *(uint32_t *)tmpdst = ntohl(*(const uint32_t *)tmpsrc);
804 else
805 *(uint32_t *)tmpdst = htonl(*(const uint32_t *)tmpsrc);
806 tmpsrc += 4;
807 tmpdst += 4;
808 tmplen -= 4;
809 }
810
811 return (0);
812 }
813
814 /*
815 * Load firmware image into the NIC. Check that the firmware revision
816 * is acceptable and see if we want the firmware for the Tigon 1 or
817 * Tigon 2.
818 */
819 static void
820 ti_loadfw(struct ti_softc *sc)
821 {
822
823 TI_LOCK_ASSERT(sc);
824
825 switch (sc->ti_hwrev) {
826 case TI_HWREV_TIGON:
827 if (tigonFwReleaseMajor != TI_FIRMWARE_MAJOR ||
828 tigonFwReleaseMinor != TI_FIRMWARE_MINOR ||
829 tigonFwReleaseFix != TI_FIRMWARE_FIX) {
830 device_printf(sc->ti_dev, "firmware revision mismatch; "
831 "want %d.%d.%d, got %d.%d.%d\n",
832 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
833 TI_FIRMWARE_FIX, tigonFwReleaseMajor,
834 tigonFwReleaseMinor, tigonFwReleaseFix);
835 return;
836 }
837 ti_mem_write(sc, tigonFwTextAddr, tigonFwTextLen, tigonFwText);
838 ti_mem_write(sc, tigonFwDataAddr, tigonFwDataLen, tigonFwData);
839 ti_mem_write(sc, tigonFwRodataAddr, tigonFwRodataLen,
840 tigonFwRodata);
841 ti_mem_zero(sc, tigonFwBssAddr, tigonFwBssLen);
842 ti_mem_zero(sc, tigonFwSbssAddr, tigonFwSbssLen);
843 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigonFwStartAddr);
844 break;
845 case TI_HWREV_TIGON_II:
846 if (tigon2FwReleaseMajor != TI_FIRMWARE_MAJOR ||
847 tigon2FwReleaseMinor != TI_FIRMWARE_MINOR ||
848 tigon2FwReleaseFix != TI_FIRMWARE_FIX) {
849 device_printf(sc->ti_dev, "firmware revision mismatch; "
850 "want %d.%d.%d, got %d.%d.%d\n",
851 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
852 TI_FIRMWARE_FIX, tigon2FwReleaseMajor,
853 tigon2FwReleaseMinor, tigon2FwReleaseFix);
854 return;
855 }
856 ti_mem_write(sc, tigon2FwTextAddr, tigon2FwTextLen,
857 tigon2FwText);
858 ti_mem_write(sc, tigon2FwDataAddr, tigon2FwDataLen,
859 tigon2FwData);
860 ti_mem_write(sc, tigon2FwRodataAddr, tigon2FwRodataLen,
861 tigon2FwRodata);
862 ti_mem_zero(sc, tigon2FwBssAddr, tigon2FwBssLen);
863 ti_mem_zero(sc, tigon2FwSbssAddr, tigon2FwSbssLen);
864 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigon2FwStartAddr);
865 break;
866 default:
867 device_printf(sc->ti_dev,
868 "can't load firmware: unknown hardware rev\n");
869 break;
870 }
871 }
872
873 /*
874 * Send the NIC a command via the command ring.
875 */
876 static void
877 ti_cmd(struct ti_softc *sc, struct ti_cmd_desc *cmd)
878 {
879 int index;
880
881 index = sc->ti_cmd_saved_prodidx;
882 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(uint32_t *)(cmd));
883 TI_INC(index, TI_CMD_RING_CNT);
884 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
885 sc->ti_cmd_saved_prodidx = index;
886 }
887
888 /*
889 * Send the NIC an extended command. The 'len' parameter specifies the
890 * number of command slots to include after the initial command.
891 */
892 static void
893 ti_cmd_ext(struct ti_softc *sc, struct ti_cmd_desc *cmd, caddr_t arg, int len)
894 {
895 int index;
896 int i;
897
898 index = sc->ti_cmd_saved_prodidx;
899 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(uint32_t *)(cmd));
900 TI_INC(index, TI_CMD_RING_CNT);
901 for (i = 0; i < len; i++) {
902 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4),
903 *(uint32_t *)(&arg[i * 4]));
904 TI_INC(index, TI_CMD_RING_CNT);
905 }
906 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
907 sc->ti_cmd_saved_prodidx = index;
908 }
909
910 /*
911 * Handle events that have triggered interrupts.
912 */
913 static void
914 ti_handle_events(struct ti_softc *sc)
915 {
916 struct ti_event_desc *e;
917
918 if (sc->ti_rdata.ti_event_ring == NULL)
919 return;
920
921 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag,
922 sc->ti_cdata.ti_event_ring_map, BUS_DMASYNC_POSTREAD);
923 while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) {
924 e = &sc->ti_rdata.ti_event_ring[sc->ti_ev_saved_considx];
925 switch (TI_EVENT_EVENT(e)) {
926 case TI_EV_LINKSTAT_CHANGED:
927 sc->ti_linkstat = TI_EVENT_CODE(e);
928 if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) {
929 if_link_state_change(sc->ti_ifp, LINK_STATE_UP);
930 sc->ti_ifp->if_baudrate = IF_Mbps(100);
931 if (bootverbose)
932 device_printf(sc->ti_dev,
933 "10/100 link up\n");
934 } else if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) {
935 if_link_state_change(sc->ti_ifp, LINK_STATE_UP);
936 sc->ti_ifp->if_baudrate = IF_Gbps(1UL);
937 if (bootverbose)
938 device_printf(sc->ti_dev,
939 "gigabit link up\n");
940 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) {
941 if_link_state_change(sc->ti_ifp,
942 LINK_STATE_DOWN);
943 sc->ti_ifp->if_baudrate = 0;
944 if (bootverbose)
945 device_printf(sc->ti_dev,
946 "link down\n");
947 }
948 break;
949 case TI_EV_ERROR:
950 if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_INVAL_CMD)
951 device_printf(sc->ti_dev, "invalid command\n");
952 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_UNIMP_CMD)
953 device_printf(sc->ti_dev, "unknown command\n");
954 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_BADCFG)
955 device_printf(sc->ti_dev, "bad config data\n");
956 break;
957 case TI_EV_FIRMWARE_UP:
958 ti_init2(sc);
959 break;
960 case TI_EV_STATS_UPDATED:
961 ti_stats_update(sc);
962 break;
963 case TI_EV_RESET_JUMBO_RING:
964 case TI_EV_MCAST_UPDATED:
965 /* Who cares. */
966 break;
967 default:
968 device_printf(sc->ti_dev, "unknown event: %d\n",
969 TI_EVENT_EVENT(e));
970 break;
971 }
972 /* Advance the consumer index. */
973 TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT);
974 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx);
975 }
976 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag,
977 sc->ti_cdata.ti_event_ring_map, BUS_DMASYNC_PREREAD);
978 }
979
980 struct ti_dmamap_arg {
981 bus_addr_t ti_busaddr;
982 };
983
984 static void
985 ti_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
986 {
987 struct ti_dmamap_arg *ctx;
988
989 if (error)
990 return;
991
992 KASSERT(nseg == 1, ("%s: %d segments returned!", __func__, nseg));
993
994 ctx = arg;
995 ctx->ti_busaddr = segs->ds_addr;
996 }
997
998 static int
999 ti_dma_ring_alloc(struct ti_softc *sc, bus_size_t alignment, bus_size_t maxsize,
1000 bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, bus_addr_t *paddr,
1001 const char *msg)
1002 {
1003 struct ti_dmamap_arg ctx;
1004 int error;
1005
1006 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag,
1007 alignment, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL,
1008 NULL, maxsize, 1, maxsize, 0, NULL, NULL, tag);
1009 if (error != 0) {
1010 device_printf(sc->ti_dev,
1011 "could not create %s dma tag\n", msg);
1012 return (error);
1013 }
1014 /* Allocate DMA'able memory for ring. */
1015 error = bus_dmamem_alloc(*tag, (void **)ring,
1016 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, map);
1017 if (error != 0) {
1018 device_printf(sc->ti_dev,
1019 "could not allocate DMA'able memory for %s\n", msg);
1020 return (error);
1021 }
1022 /* Load the address of the ring. */
1023 ctx.ti_busaddr = 0;
1024 error = bus_dmamap_load(*tag, *map, *ring, maxsize, ti_dma_map_addr,
1025 &ctx, BUS_DMA_NOWAIT);
1026 if (error != 0) {
1027 device_printf(sc->ti_dev,
1028 "could not load DMA'able memory for %s\n", msg);
1029 return (error);
1030 }
1031 *paddr = ctx.ti_busaddr;
1032 return (0);
1033 }
1034
1035 static void
1036 ti_dma_ring_free(struct ti_softc *sc, bus_dma_tag_t *tag, uint8_t **ring,
1037 bus_dmamap_t *map)
1038 {
1039
1040 if (*map != NULL)
1041 bus_dmamap_unload(*tag, *map);
1042 if (*map != NULL && *ring != NULL) {
1043 bus_dmamem_free(*tag, *ring, *map);
1044 *ring = NULL;
1045 *map = NULL;
1046 }
1047 if (*tag) {
1048 bus_dma_tag_destroy(*tag);
1049 *tag = NULL;
1050 }
1051 }
1052
1053 static int
1054 ti_dma_alloc(struct ti_softc *sc)
1055 {
1056 bus_addr_t lowaddr;
1057 int i, error;
1058
1059 lowaddr = BUS_SPACE_MAXADDR;
1060 if (sc->ti_dac == 0)
1061 lowaddr = BUS_SPACE_MAXADDR_32BIT;
1062
1063 error = bus_dma_tag_create(bus_get_dma_tag(sc->ti_dev), 1, 0, lowaddr,
1064 BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 0,
1065 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
1066 &sc->ti_cdata.ti_parent_tag);
1067 if (error != 0) {
1068 device_printf(sc->ti_dev,
1069 "could not allocate parent dma tag\n");
1070 return (ENOMEM);
1071 }
1072
1073 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, sizeof(struct ti_gib),
1074 &sc->ti_cdata.ti_gib_tag, (uint8_t **)&sc->ti_rdata.ti_info,
1075 &sc->ti_cdata.ti_gib_map, &sc->ti_rdata.ti_info_paddr, "GIB");
1076 if (error)
1077 return (error);
1078
1079 /* Producer/consumer status */
1080 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, sizeof(struct ti_status),
1081 &sc->ti_cdata.ti_status_tag, (uint8_t **)&sc->ti_rdata.ti_status,
1082 &sc->ti_cdata.ti_status_map, &sc->ti_rdata.ti_status_paddr,
1083 "event ring");
1084 if (error)
1085 return (error);
1086
1087 /* Event ring */
1088 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_EVENT_RING_SZ,
1089 &sc->ti_cdata.ti_event_ring_tag,
1090 (uint8_t **)&sc->ti_rdata.ti_event_ring,
1091 &sc->ti_cdata.ti_event_ring_map, &sc->ti_rdata.ti_event_ring_paddr,
1092 "event ring");
1093 if (error)
1094 return (error);
1095
1096 /* Command ring lives in shared memory so no need to create DMA area. */
1097
1098 /* Standard RX ring */
1099 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_STD_RX_RING_SZ,
1100 &sc->ti_cdata.ti_rx_std_ring_tag,
1101 (uint8_t **)&sc->ti_rdata.ti_rx_std_ring,
1102 &sc->ti_cdata.ti_rx_std_ring_map,
1103 &sc->ti_rdata.ti_rx_std_ring_paddr, "RX ring");
1104 if (error)
1105 return (error);
1106
1107 /* Jumbo RX ring */
1108 error = ti_dma_ring_alloc(sc, TI_JUMBO_RING_ALIGN, TI_JUMBO_RX_RING_SZ,
1109 &sc->ti_cdata.ti_rx_jumbo_ring_tag,
1110 (uint8_t **)&sc->ti_rdata.ti_rx_jumbo_ring,
1111 &sc->ti_cdata.ti_rx_jumbo_ring_map,
1112 &sc->ti_rdata.ti_rx_jumbo_ring_paddr, "jumbo RX ring");
1113 if (error)
1114 return (error);
1115
1116 /* RX return ring */
1117 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_RX_RETURN_RING_SZ,
1118 &sc->ti_cdata.ti_rx_return_ring_tag,
1119 (uint8_t **)&sc->ti_rdata.ti_rx_return_ring,
1120 &sc->ti_cdata.ti_rx_return_ring_map,
1121 &sc->ti_rdata.ti_rx_return_ring_paddr, "RX return ring");
1122 if (error)
1123 return (error);
1124
1125 /* Create DMA tag for standard RX mbufs. */
1126 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0,
1127 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
1128 MCLBYTES, 0, NULL, NULL, &sc->ti_cdata.ti_rx_std_tag);
1129 if (error) {
1130 device_printf(sc->ti_dev, "could not allocate RX dma tag\n");
1131 return (error);
1132 }
1133
1134 /* Create DMA tag for jumbo RX mbufs. */
1135 #ifdef TI_SF_BUF_JUMBO
1136 /*
1137 * The VM system will take care of providing aligned pages. Alignment
1138 * is set to 1 here so that busdma resources won't be wasted.
1139 */
1140 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0,
1141 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, PAGE_SIZE * 4, 4,
1142 PAGE_SIZE, 0, NULL, NULL, &sc->ti_cdata.ti_rx_jumbo_tag);
1143 #else
1144 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0,
1145 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MJUM9BYTES, 1,
1146 MJUM9BYTES, 0, NULL, NULL, &sc->ti_cdata.ti_rx_jumbo_tag);
1147 #endif
1148 if (error) {
1149 device_printf(sc->ti_dev,
1150 "could not allocate jumbo RX dma tag\n");
1151 return (error);
1152 }
1153
1154 /* Create DMA tag for TX mbufs. */
1155 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1,
1156 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1157 MCLBYTES * TI_MAXTXSEGS, TI_MAXTXSEGS, MCLBYTES, 0, NULL, NULL,
1158 &sc->ti_cdata.ti_tx_tag);
1159 if (error) {
1160 device_printf(sc->ti_dev, "could not allocate TX dma tag\n");
1161 return (ENOMEM);
1162 }
1163
1164 /* Create DMA maps for RX buffers. */
1165 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1166 error = bus_dmamap_create(sc->ti_cdata.ti_rx_std_tag, 0,
1167 &sc->ti_cdata.ti_rx_std_maps[i]);
1168 if (error) {
1169 device_printf(sc->ti_dev,
1170 "could not create DMA map for RX\n");
1171 return (error);
1172 }
1173 }
1174 error = bus_dmamap_create(sc->ti_cdata.ti_rx_std_tag, 0,
1175 &sc->ti_cdata.ti_rx_std_sparemap);
1176 if (error) {
1177 device_printf(sc->ti_dev,
1178 "could not create spare DMA map for RX\n");
1179 return (error);
1180 }
1181
1182 /* Create DMA maps for jumbo RX buffers. */
1183 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1184 error = bus_dmamap_create(sc->ti_cdata.ti_rx_jumbo_tag, 0,
1185 &sc->ti_cdata.ti_rx_jumbo_maps[i]);
1186 if (error) {
1187 device_printf(sc->ti_dev,
1188 "could not create DMA map for jumbo RX\n");
1189 return (error);
1190 }
1191 }
1192 error = bus_dmamap_create(sc->ti_cdata.ti_rx_jumbo_tag, 0,
1193 &sc->ti_cdata.ti_rx_jumbo_sparemap);
1194 if (error) {
1195 device_printf(sc->ti_dev,
1196 "could not create spare DMA map for jumbo RX\n");
1197 return (error);
1198 }
1199
1200 /* Create DMA maps for TX buffers. */
1201 for (i = 0; i < TI_TX_RING_CNT; i++) {
1202 error = bus_dmamap_create(sc->ti_cdata.ti_tx_tag, 0,
1203 &sc->ti_cdata.ti_txdesc[i].tx_dmamap);
1204 if (error) {
1205 device_printf(sc->ti_dev,
1206 "could not create DMA map for TX\n");
1207 return (ENOMEM);
1208 }
1209 }
1210
1211 /* Mini ring and TX ring is not available on Tigon 1. */
1212 if (sc->ti_hwrev == TI_HWREV_TIGON)
1213 return (0);
1214
1215 /* TX ring */
1216 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_TX_RING_SZ,
1217 &sc->ti_cdata.ti_tx_ring_tag, (uint8_t **)&sc->ti_rdata.ti_tx_ring,
1218 &sc->ti_cdata.ti_tx_ring_map, &sc->ti_rdata.ti_tx_ring_paddr,
1219 "TX ring");
1220 if (error)
1221 return (error);
1222
1223 /* Mini RX ring */
1224 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_MINI_RX_RING_SZ,
1225 &sc->ti_cdata.ti_rx_mini_ring_tag,
1226 (uint8_t **)&sc->ti_rdata.ti_rx_mini_ring,
1227 &sc->ti_cdata.ti_rx_mini_ring_map,
1228 &sc->ti_rdata.ti_rx_mini_ring_paddr, "mini RX ring");
1229 if (error)
1230 return (error);
1231
1232 /* Create DMA tag for mini RX mbufs. */
1233 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0,
1234 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MHLEN, 1,
1235 MHLEN, 0, NULL, NULL, &sc->ti_cdata.ti_rx_mini_tag);
1236 if (error) {
1237 device_printf(sc->ti_dev,
1238 "could not allocate mini RX dma tag\n");
1239 return (error);
1240 }
1241
1242 /* Create DMA maps for mini RX buffers. */
1243 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1244 error = bus_dmamap_create(sc->ti_cdata.ti_rx_mini_tag, 0,
1245 &sc->ti_cdata.ti_rx_mini_maps[i]);
1246 if (error) {
1247 device_printf(sc->ti_dev,
1248 "could not create DMA map for mini RX\n");
1249 return (error);
1250 }
1251 }
1252 error = bus_dmamap_create(sc->ti_cdata.ti_rx_mini_tag, 0,
1253 &sc->ti_cdata.ti_rx_mini_sparemap);
1254 if (error) {
1255 device_printf(sc->ti_dev,
1256 "could not create spare DMA map for mini RX\n");
1257 return (error);
1258 }
1259
1260 return (0);
1261 }
1262
1263 static void
1264 ti_dma_free(struct ti_softc *sc)
1265 {
1266 int i;
1267
1268 /* Destroy DMA maps for RX buffers. */
1269 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1270 if (sc->ti_cdata.ti_rx_std_maps[i]) {
1271 bus_dmamap_destroy(sc->ti_cdata.ti_rx_std_tag,
1272 sc->ti_cdata.ti_rx_std_maps[i]);
1273 sc->ti_cdata.ti_rx_std_maps[i] = NULL;
1274 }
1275 }
1276 if (sc->ti_cdata.ti_rx_std_sparemap) {
1277 bus_dmamap_destroy(sc->ti_cdata.ti_rx_std_tag,
1278 sc->ti_cdata.ti_rx_std_sparemap);
1279 sc->ti_cdata.ti_rx_std_sparemap = NULL;
1280 }
1281 if (sc->ti_cdata.ti_rx_std_tag) {
1282 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_std_tag);
1283 sc->ti_cdata.ti_rx_std_tag = NULL;
1284 }
1285
1286 /* Destroy DMA maps for jumbo RX buffers. */
1287 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1288 if (sc->ti_cdata.ti_rx_jumbo_maps[i]) {
1289 bus_dmamap_destroy(sc->ti_cdata.ti_rx_jumbo_tag,
1290 sc->ti_cdata.ti_rx_jumbo_maps[i]);
1291 sc->ti_cdata.ti_rx_jumbo_maps[i] = NULL;
1292 }
1293 }
1294 if (sc->ti_cdata.ti_rx_jumbo_sparemap) {
1295 bus_dmamap_destroy(sc->ti_cdata.ti_rx_jumbo_tag,
1296 sc->ti_cdata.ti_rx_jumbo_sparemap);
1297 sc->ti_cdata.ti_rx_jumbo_sparemap = NULL;
1298 }
1299 if (sc->ti_cdata.ti_rx_jumbo_tag) {
1300 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_jumbo_tag);
1301 sc->ti_cdata.ti_rx_jumbo_tag = NULL;
1302 }
1303
1304 /* Destroy DMA maps for mini RX buffers. */
1305 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1306 if (sc->ti_cdata.ti_rx_mini_maps[i]) {
1307 bus_dmamap_destroy(sc->ti_cdata.ti_rx_mini_tag,
1308 sc->ti_cdata.ti_rx_mini_maps[i]);
1309 sc->ti_cdata.ti_rx_mini_maps[i] = NULL;
1310 }
1311 }
1312 if (sc->ti_cdata.ti_rx_mini_sparemap) {
1313 bus_dmamap_destroy(sc->ti_cdata.ti_rx_mini_tag,
1314 sc->ti_cdata.ti_rx_mini_sparemap);
1315 sc->ti_cdata.ti_rx_mini_sparemap = NULL;
1316 }
1317 if (sc->ti_cdata.ti_rx_mini_tag) {
1318 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_mini_tag);
1319 sc->ti_cdata.ti_rx_mini_tag = NULL;
1320 }
1321
1322 /* Destroy DMA maps for TX buffers. */
1323 for (i = 0; i < TI_TX_RING_CNT; i++) {
1324 if (sc->ti_cdata.ti_txdesc[i].tx_dmamap) {
1325 bus_dmamap_destroy(sc->ti_cdata.ti_tx_tag,
1326 sc->ti_cdata.ti_txdesc[i].tx_dmamap);
1327 sc->ti_cdata.ti_txdesc[i].tx_dmamap = NULL;
1328 }
1329 }
1330 if (sc->ti_cdata.ti_tx_tag) {
1331 bus_dma_tag_destroy(sc->ti_cdata.ti_tx_tag);
1332 sc->ti_cdata.ti_tx_tag = NULL;
1333 }
1334
1335 /* Destroy standard RX ring. */
1336 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_std_ring_tag,
1337 (void *)&sc->ti_rdata.ti_rx_std_ring,
1338 &sc->ti_cdata.ti_rx_std_ring_map);
1339 /* Destroy jumbo RX ring. */
1340 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_jumbo_ring_tag,
1341 (void *)&sc->ti_rdata.ti_rx_jumbo_ring,
1342 &sc->ti_cdata.ti_rx_jumbo_ring_map);
1343 /* Destroy mini RX ring. */
1344 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_mini_ring_tag,
1345 (void *)&sc->ti_rdata.ti_rx_mini_ring,
1346 &sc->ti_cdata.ti_rx_mini_ring_map);
1347 /* Destroy RX return ring. */
1348 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_return_ring_tag,
1349 (void *)&sc->ti_rdata.ti_rx_return_ring,
1350 &sc->ti_cdata.ti_rx_return_ring_map);
1351 /* Destroy TX ring. */
1352 ti_dma_ring_free(sc, &sc->ti_cdata.ti_tx_ring_tag,
1353 (void *)&sc->ti_rdata.ti_tx_ring, &sc->ti_cdata.ti_tx_ring_map);
1354 /* Destroy status block. */
1355 ti_dma_ring_free(sc, &sc->ti_cdata.ti_status_tag,
1356 (void *)&sc->ti_rdata.ti_status, &sc->ti_cdata.ti_status_map);
1357 /* Destroy event ring. */
1358 ti_dma_ring_free(sc, &sc->ti_cdata.ti_event_ring_tag,
1359 (void *)&sc->ti_rdata.ti_event_ring,
1360 &sc->ti_cdata.ti_event_ring_map);
1361 /* Destroy GIB */
1362 ti_dma_ring_free(sc, &sc->ti_cdata.ti_gib_tag,
1363 (void *)&sc->ti_rdata.ti_info, &sc->ti_cdata.ti_gib_map);
1364
1365 /* Destroy the parent tag. */
1366 if (sc->ti_cdata.ti_parent_tag) {
1367 bus_dma_tag_destroy(sc->ti_cdata.ti_parent_tag);
1368 sc->ti_cdata.ti_parent_tag = NULL;
1369 }
1370 }
1371
1372 /*
1373 * Intialize a standard receive ring descriptor.
1374 */
1375 static int
1376 ti_newbuf_std(struct ti_softc *sc, int i)
1377 {
1378 bus_dmamap_t map;
1379 bus_dma_segment_t segs[1];
1380 struct mbuf *m;
1381 struct ti_rx_desc *r;
1382 int error, nsegs;
1383
1384 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1385 if (m == NULL)
1386 return (ENOBUFS);
1387 m->m_len = m->m_pkthdr.len = MCLBYTES;
1388 m_adj(m, ETHER_ALIGN);
1389
1390 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_std_tag,
1391 sc->ti_cdata.ti_rx_std_sparemap, m, segs, &nsegs, 0);
1392 if (error != 0) {
1393 m_freem(m);
1394 return (error);
1395 }
1396 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
1397
1398 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) {
1399 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag,
1400 sc->ti_cdata.ti_rx_std_maps[i], BUS_DMASYNC_POSTREAD);
1401 bus_dmamap_unload(sc->ti_cdata.ti_rx_std_tag,
1402 sc->ti_cdata.ti_rx_std_maps[i]);
1403 }
1404
1405 map = sc->ti_cdata.ti_rx_std_maps[i];
1406 sc->ti_cdata.ti_rx_std_maps[i] = sc->ti_cdata.ti_rx_std_sparemap;
1407 sc->ti_cdata.ti_rx_std_sparemap = map;
1408 sc->ti_cdata.ti_rx_std_chain[i] = m;
1409
1410 r = &sc->ti_rdata.ti_rx_std_ring[i];
1411 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr);
1412 r->ti_len = segs[0].ds_len;
1413 r->ti_type = TI_BDTYPE_RECV_BD;
1414 r->ti_flags = 0;
1415 r->ti_vlan_tag = 0;
1416 r->ti_tcp_udp_cksum = 0;
1417 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
1418 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1419 r->ti_idx = i;
1420
1421 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag,
1422 sc->ti_cdata.ti_rx_std_maps[i], BUS_DMASYNC_PREREAD);
1423 return (0);
1424 }
1425
1426 /*
1427 * Intialize a mini receive ring descriptor. This only applies to
1428 * the Tigon 2.
1429 */
1430 static int
1431 ti_newbuf_mini(struct ti_softc *sc, int i)
1432 {
1433 bus_dmamap_t map;
1434 bus_dma_segment_t segs[1];
1435 struct mbuf *m;
1436 struct ti_rx_desc *r;
1437 int error, nsegs;
1438
1439 MGETHDR(m, M_NOWAIT, MT_DATA);
1440 if (m == NULL)
1441 return (ENOBUFS);
1442 m->m_len = m->m_pkthdr.len = MHLEN;
1443 m_adj(m, ETHER_ALIGN);
1444
1445 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_mini_tag,
1446 sc->ti_cdata.ti_rx_mini_sparemap, m, segs, &nsegs, 0);
1447 if (error != 0) {
1448 m_freem(m);
1449 return (error);
1450 }
1451 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
1452
1453 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) {
1454 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag,
1455 sc->ti_cdata.ti_rx_mini_maps[i], BUS_DMASYNC_POSTREAD);
1456 bus_dmamap_unload(sc->ti_cdata.ti_rx_mini_tag,
1457 sc->ti_cdata.ti_rx_mini_maps[i]);
1458 }
1459
1460 map = sc->ti_cdata.ti_rx_mini_maps[i];
1461 sc->ti_cdata.ti_rx_mini_maps[i] = sc->ti_cdata.ti_rx_mini_sparemap;
1462 sc->ti_cdata.ti_rx_mini_sparemap = map;
1463 sc->ti_cdata.ti_rx_mini_chain[i] = m;
1464
1465 r = &sc->ti_rdata.ti_rx_mini_ring[i];
1466 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr);
1467 r->ti_len = segs[0].ds_len;
1468 r->ti_type = TI_BDTYPE_RECV_BD;
1469 r->ti_flags = TI_BDFLAG_MINI_RING;
1470 r->ti_vlan_tag = 0;
1471 r->ti_tcp_udp_cksum = 0;
1472 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
1473 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1474 r->ti_idx = i;
1475
1476 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag,
1477 sc->ti_cdata.ti_rx_mini_maps[i], BUS_DMASYNC_PREREAD);
1478 return (0);
1479 }
1480
1481 #ifndef TI_SF_BUF_JUMBO
1482
1483 /*
1484 * Initialize a jumbo receive ring descriptor. This allocates
1485 * a jumbo buffer from the pool managed internally by the driver.
1486 */
1487 static int
1488 ti_newbuf_jumbo(struct ti_softc *sc, int i, struct mbuf *dummy)
1489 {
1490 bus_dmamap_t map;
1491 bus_dma_segment_t segs[1];
1492 struct mbuf *m;
1493 struct ti_rx_desc *r;
1494 int error, nsegs;
1495
1496 (void)dummy;
1497
1498 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES);
1499 if (m == NULL)
1500 return (ENOBUFS);
1501 m->m_len = m->m_pkthdr.len = MJUM9BYTES;
1502 m_adj(m, ETHER_ALIGN);
1503
1504 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_jumbo_tag,
1505 sc->ti_cdata.ti_rx_jumbo_sparemap, m, segs, &nsegs, 0);
1506 if (error != 0) {
1507 m_freem(m);
1508 return (error);
1509 }
1510 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
1511
1512 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) {
1513 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag,
1514 sc->ti_cdata.ti_rx_jumbo_maps[i], BUS_DMASYNC_POSTREAD);
1515 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag,
1516 sc->ti_cdata.ti_rx_jumbo_maps[i]);
1517 }
1518
1519 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1520 sc->ti_cdata.ti_rx_jumbo_maps[i] = sc->ti_cdata.ti_rx_jumbo_sparemap;
1521 sc->ti_cdata.ti_rx_jumbo_sparemap = map;
1522 sc->ti_cdata.ti_rx_jumbo_chain[i] = m;
1523
1524 r = &sc->ti_rdata.ti_rx_jumbo_ring[i];
1525 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr);
1526 r->ti_len = segs[0].ds_len;
1527 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
1528 r->ti_flags = TI_BDFLAG_JUMBO_RING;
1529 r->ti_vlan_tag = 0;
1530 r->ti_tcp_udp_cksum = 0;
1531 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
1532 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1533 r->ti_idx = i;
1534
1535 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag,
1536 sc->ti_cdata.ti_rx_jumbo_maps[i], BUS_DMASYNC_PREREAD);
1537 return (0);
1538 }
1539
1540 #else
1541
1542 #if (PAGE_SIZE == 4096)
1543 #define NPAYLOAD 2
1544 #else
1545 #define NPAYLOAD 1
1546 #endif
1547
1548 #define TCP_HDR_LEN (52 + sizeof(struct ether_header))
1549 #define UDP_HDR_LEN (28 + sizeof(struct ether_header))
1550 #define NFS_HDR_LEN (UDP_HDR_LEN)
1551 static int HDR_LEN = TCP_HDR_LEN;
1552
1553 /*
1554 * Initialize a jumbo receive ring descriptor. This allocates
1555 * a jumbo buffer from the pool managed internally by the driver.
1556 */
1557 static int
1558 ti_newbuf_jumbo(struct ti_softc *sc, int idx, struct mbuf *m_old)
1559 {
1560 bus_dmamap_t map;
1561 struct mbuf *cur, *m_new = NULL;
1562 struct mbuf *m[3] = {NULL, NULL, NULL};
1563 struct ti_rx_desc_ext *r;
1564 vm_page_t frame;
1565 static int color;
1566 /* 1 extra buf to make nobufs easy*/
1567 struct sf_buf *sf[3] = {NULL, NULL, NULL};
1568 int i;
1569 bus_dma_segment_t segs[4];
1570 int nsegs;
1571
1572 if (m_old != NULL) {
1573 m_new = m_old;
1574 cur = m_old->m_next;
1575 for (i = 0; i <= NPAYLOAD; i++){
1576 m[i] = cur;
1577 cur = cur->m_next;
1578 }
1579 } else {
1580 /* Allocate the mbufs. */
1581 MGETHDR(m_new, M_NOWAIT, MT_DATA);
1582 if (m_new == NULL) {
1583 device_printf(sc->ti_dev, "mbuf allocation failed "
1584 "-- packet dropped!\n");
1585 goto nobufs;
1586 }
1587 MGET(m[NPAYLOAD], M_NOWAIT, MT_DATA);
1588 if (m[NPAYLOAD] == NULL) {
1589 device_printf(sc->ti_dev, "cluster mbuf allocation "
1590 "failed -- packet dropped!\n");
1591 goto nobufs;
1592 }
1593 MCLGET(m[NPAYLOAD], M_NOWAIT);
1594 if ((m[NPAYLOAD]->m_flags & M_EXT) == 0) {
1595 device_printf(sc->ti_dev, "mbuf allocation failed "
1596 "-- packet dropped!\n");
1597 goto nobufs;
1598 }
1599 m[NPAYLOAD]->m_len = MCLBYTES;
1600
1601 for (i = 0; i < NPAYLOAD; i++){
1602 MGET(m[i], M_NOWAIT, MT_DATA);
1603 if (m[i] == NULL) {
1604 device_printf(sc->ti_dev, "mbuf allocation "
1605 "failed -- packet dropped!\n");
1606 goto nobufs;
1607 }
1608 frame = vm_page_alloc(NULL, color++,
1609 VM_ALLOC_INTERRUPT | VM_ALLOC_NOOBJ |
1610 VM_ALLOC_WIRED);
1611 if (frame == NULL) {
1612 device_printf(sc->ti_dev, "buffer allocation "
1613 "failed -- packet dropped!\n");
1614 printf(" index %d page %d\n", idx, i);
1615 goto nobufs;
1616 }
1617 sf[i] = sf_buf_alloc(frame, SFB_NOWAIT);
1618 if (sf[i] == NULL) {
1619 vm_page_unwire(frame, 0);
1620 vm_page_free(frame);
1621 device_printf(sc->ti_dev, "buffer allocation "
1622 "failed -- packet dropped!\n");
1623 printf(" index %d page %d\n", idx, i);
1624 goto nobufs;
1625 }
1626 }
1627 for (i = 0; i < NPAYLOAD; i++){
1628 /* Attach the buffer to the mbuf. */
1629 m[i]->m_data = (void *)sf_buf_kva(sf[i]);
1630 m[i]->m_len = PAGE_SIZE;
1631 MEXTADD(m[i], sf_buf_kva(sf[i]), PAGE_SIZE,
1632 sf_buf_mext, (void*)sf_buf_kva(sf[i]), sf[i],
1633 0, EXT_DISPOSABLE);
1634 m[i]->m_next = m[i+1];
1635 }
1636 /* link the buffers to the header */
1637 m_new->m_next = m[0];
1638 m_new->m_data += ETHER_ALIGN;
1639 if (sc->ti_hdrsplit)
1640 m_new->m_len = MHLEN - ETHER_ALIGN;
1641 else
1642 m_new->m_len = HDR_LEN;
1643 m_new->m_pkthdr.len = NPAYLOAD * PAGE_SIZE + m_new->m_len;
1644 }
1645
1646 /* Set up the descriptor. */
1647 r = &sc->ti_rdata.ti_rx_jumbo_ring[idx];
1648 sc->ti_cdata.ti_rx_jumbo_chain[idx] = m_new;
1649 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1650 if (bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_jumbo_tag, map, m_new,
1651 segs, &nsegs, 0))
1652 return (ENOBUFS);
1653 if ((nsegs < 1) || (nsegs > 4))
1654 return (ENOBUFS);
1655 ti_hostaddr64(&r->ti_addr0, segs[0].ds_addr);
1656 r->ti_len0 = m_new->m_len;
1657
1658 ti_hostaddr64(&r->ti_addr1, segs[1].ds_addr);
1659 r->ti_len1 = PAGE_SIZE;
1660
1661 ti_hostaddr64(&r->ti_addr2, segs[2].ds_addr);
1662 r->ti_len2 = m[1]->m_ext.ext_size; /* could be PAGE_SIZE or MCLBYTES */
1663
1664 if (PAGE_SIZE == 4096) {
1665 ti_hostaddr64(&r->ti_addr3, segs[3].ds_addr);
1666 r->ti_len3 = MCLBYTES;
1667 } else {
1668 r->ti_len3 = 0;
1669 }
1670 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
1671
1672 r->ti_flags = TI_BDFLAG_JUMBO_RING|TI_RCB_FLAG_USE_EXT_RX_BD;
1673
1674 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
1675 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM|TI_BDFLAG_IP_CKSUM;
1676
1677 r->ti_idx = idx;
1678
1679 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map, BUS_DMASYNC_PREREAD);
1680 return (0);
1681
1682 nobufs:
1683
1684 /*
1685 * Warning! :
1686 * This can only be called before the mbufs are strung together.
1687 * If the mbufs are strung together, m_freem() will free the chain,
1688 * so that the later mbufs will be freed multiple times.
1689 */
1690 if (m_new)
1691 m_freem(m_new);
1692
1693 for (i = 0; i < 3; i++) {
1694 if (m[i])
1695 m_freem(m[i]);
1696 if (sf[i])
1697 sf_buf_mext((void *)sf_buf_kva(sf[i]), sf[i]);
1698 }
1699 return (ENOBUFS);
1700 }
1701 #endif
1702
1703 /*
1704 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster,
1705 * that's 1MB or memory, which is a lot. For now, we fill only the first
1706 * 256 ring entries and hope that our CPU is fast enough to keep up with
1707 * the NIC.
1708 */
1709 static int
1710 ti_init_rx_ring_std(struct ti_softc *sc)
1711 {
1712 int i;
1713 struct ti_cmd_desc cmd;
1714
1715 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1716 if (ti_newbuf_std(sc, i) != 0)
1717 return (ENOBUFS);
1718 };
1719
1720 sc->ti_std = TI_STD_RX_RING_CNT - 1;
1721 TI_UPDATE_STDPROD(sc, TI_STD_RX_RING_CNT - 1);
1722
1723 return (0);
1724 }
1725
1726 static void
1727 ti_free_rx_ring_std(struct ti_softc *sc)
1728 {
1729 bus_dmamap_t map;
1730 int i;
1731
1732 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1733 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) {
1734 map = sc->ti_cdata.ti_rx_std_maps[i];
1735 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag, map,
1736 BUS_DMASYNC_POSTREAD);
1737 bus_dmamap_unload(sc->ti_cdata.ti_rx_std_tag, map);
1738 m_freem(sc->ti_cdata.ti_rx_std_chain[i]);
1739 sc->ti_cdata.ti_rx_std_chain[i] = NULL;
1740 }
1741 }
1742 bzero(sc->ti_rdata.ti_rx_std_ring, TI_STD_RX_RING_SZ);
1743 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag,
1744 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_PREWRITE);
1745 }
1746
1747 static int
1748 ti_init_rx_ring_jumbo(struct ti_softc *sc)
1749 {
1750 struct ti_cmd_desc cmd;
1751 int i;
1752
1753 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1754 if (ti_newbuf_jumbo(sc, i, NULL) != 0)
1755 return (ENOBUFS);
1756 };
1757
1758 sc->ti_jumbo = TI_JUMBO_RX_RING_CNT - 1;
1759 TI_UPDATE_JUMBOPROD(sc, TI_JUMBO_RX_RING_CNT - 1);
1760
1761 return (0);
1762 }
1763
1764 static void
1765 ti_free_rx_ring_jumbo(struct ti_softc *sc)
1766 {
1767 bus_dmamap_t map;
1768 int i;
1769
1770 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1771 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) {
1772 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1773 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map,
1774 BUS_DMASYNC_POSTREAD);
1775 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag, map);
1776 m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]);
1777 sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL;
1778 }
1779 }
1780 bzero(sc->ti_rdata.ti_rx_jumbo_ring, TI_JUMBO_RX_RING_SZ);
1781 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag,
1782 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE);
1783 }
1784
1785 static int
1786 ti_init_rx_ring_mini(struct ti_softc *sc)
1787 {
1788 int i;
1789
1790 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1791 if (ti_newbuf_mini(sc, i) != 0)
1792 return (ENOBUFS);
1793 };
1794
1795 sc->ti_mini = TI_MINI_RX_RING_CNT - 1;
1796 TI_UPDATE_MINIPROD(sc, TI_MINI_RX_RING_CNT - 1);
1797
1798 return (0);
1799 }
1800
1801 static void
1802 ti_free_rx_ring_mini(struct ti_softc *sc)
1803 {
1804 bus_dmamap_t map;
1805 int i;
1806
1807 if (sc->ti_rdata.ti_rx_mini_ring == NULL)
1808 return;
1809
1810 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1811 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) {
1812 map = sc->ti_cdata.ti_rx_mini_maps[i];
1813 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag, map,
1814 BUS_DMASYNC_POSTREAD);
1815 bus_dmamap_unload(sc->ti_cdata.ti_rx_mini_tag, map);
1816 m_freem(sc->ti_cdata.ti_rx_mini_chain[i]);
1817 sc->ti_cdata.ti_rx_mini_chain[i] = NULL;
1818 }
1819 }
1820 bzero(sc->ti_rdata.ti_rx_mini_ring, TI_MINI_RX_RING_SZ);
1821 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag,
1822 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_PREWRITE);
1823 }
1824
1825 static void
1826 ti_free_tx_ring(struct ti_softc *sc)
1827 {
1828 struct ti_txdesc *txd;
1829 int i;
1830
1831 if (sc->ti_rdata.ti_tx_ring == NULL)
1832 return;
1833
1834 for (i = 0; i < TI_TX_RING_CNT; i++) {
1835 txd = &sc->ti_cdata.ti_txdesc[i];
1836 if (txd->tx_m != NULL) {
1837 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap,
1838 BUS_DMASYNC_POSTWRITE);
1839 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag,
1840 txd->tx_dmamap);
1841 m_freem(txd->tx_m);
1842 txd->tx_m = NULL;
1843 }
1844 }
1845 bzero(sc->ti_rdata.ti_tx_ring, TI_TX_RING_SZ);
1846 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag,
1847 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE);
1848 }
1849
1850 static int
1851 ti_init_tx_ring(struct ti_softc *sc)
1852 {
1853 struct ti_txdesc *txd;
1854 int i;
1855
1856 STAILQ_INIT(&sc->ti_cdata.ti_txfreeq);
1857 STAILQ_INIT(&sc->ti_cdata.ti_txbusyq);
1858 for (i = 0; i < TI_TX_RING_CNT; i++) {
1859 txd = &sc->ti_cdata.ti_txdesc[i];
1860 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
1861 }
1862 sc->ti_txcnt = 0;
1863 sc->ti_tx_saved_considx = 0;
1864 sc->ti_tx_saved_prodidx = 0;
1865 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0);
1866 return (0);
1867 }
1868
1869 /*
1870 * The Tigon 2 firmware has a new way to add/delete multicast addresses,
1871 * but we have to support the old way too so that Tigon 1 cards will
1872 * work.
1873 */
1874 static void
1875 ti_add_mcast(struct ti_softc *sc, struct ether_addr *addr)
1876 {
1877 struct ti_cmd_desc cmd;
1878 uint16_t *m;
1879 uint32_t ext[2] = {0, 0};
1880
1881 m = (uint16_t *)&addr->octet[0];
1882
1883 switch (sc->ti_hwrev) {
1884 case TI_HWREV_TIGON:
1885 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
1886 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
1887 TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0);
1888 break;
1889 case TI_HWREV_TIGON_II:
1890 ext[0] = htons(m[0]);
1891 ext[1] = (htons(m[1]) << 16) | htons(m[2]);
1892 TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2);
1893 break;
1894 default:
1895 device_printf(sc->ti_dev, "unknown hwrev\n");
1896 break;
1897 }
1898 }
1899
1900 static void
1901 ti_del_mcast(struct ti_softc *sc, struct ether_addr *addr)
1902 {
1903 struct ti_cmd_desc cmd;
1904 uint16_t *m;
1905 uint32_t ext[2] = {0, 0};
1906
1907 m = (uint16_t *)&addr->octet[0];
1908
1909 switch (sc->ti_hwrev) {
1910 case TI_HWREV_TIGON:
1911 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
1912 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
1913 TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0);
1914 break;
1915 case TI_HWREV_TIGON_II:
1916 ext[0] = htons(m[0]);
1917 ext[1] = (htons(m[1]) << 16) | htons(m[2]);
1918 TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2);
1919 break;
1920 default:
1921 device_printf(sc->ti_dev, "unknown hwrev\n");
1922 break;
1923 }
1924 }
1925
1926 /*
1927 * Configure the Tigon's multicast address filter.
1928 *
1929 * The actual multicast table management is a bit of a pain, thanks to
1930 * slight brain damage on the part of both Alteon and us. With our
1931 * multicast code, we are only alerted when the multicast address table
1932 * changes and at that point we only have the current list of addresses:
1933 * we only know the current state, not the previous state, so we don't
1934 * actually know what addresses were removed or added. The firmware has
1935 * state, but we can't get our grubby mits on it, and there is no 'delete
1936 * all multicast addresses' command. Hence, we have to maintain our own
1937 * state so we know what addresses have been programmed into the NIC at
1938 * any given time.
1939 */
1940 static void
1941 ti_setmulti(struct ti_softc *sc)
1942 {
1943 struct ifnet *ifp;
1944 struct ifmultiaddr *ifma;
1945 struct ti_cmd_desc cmd;
1946 struct ti_mc_entry *mc;
1947 uint32_t intrs;
1948
1949 TI_LOCK_ASSERT(sc);
1950
1951 ifp = sc->ti_ifp;
1952
1953 if (ifp->if_flags & IFF_ALLMULTI) {
1954 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0);
1955 return;
1956 } else {
1957 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0);
1958 }
1959
1960 /* Disable interrupts. */
1961 intrs = CSR_READ_4(sc, TI_MB_HOSTINTR);
1962 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
1963
1964 /* First, zot all the existing filters. */
1965 while (SLIST_FIRST(&sc->ti_mc_listhead) != NULL) {
1966 mc = SLIST_FIRST(&sc->ti_mc_listhead);
1967 ti_del_mcast(sc, &mc->mc_addr);
1968 SLIST_REMOVE_HEAD(&sc->ti_mc_listhead, mc_entries);
1969 free(mc, M_DEVBUF);
1970 }
1971
1972 /* Now program new ones. */
1973 if_maddr_rlock(ifp);
1974 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1975 if (ifma->ifma_addr->sa_family != AF_LINK)
1976 continue;
1977 mc = malloc(sizeof(struct ti_mc_entry), M_DEVBUF, M_NOWAIT);
1978 if (mc == NULL) {
1979 device_printf(sc->ti_dev,
1980 "no memory for mcast filter entry\n");
1981 continue;
1982 }
1983 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1984 (char *)&mc->mc_addr, ETHER_ADDR_LEN);
1985 SLIST_INSERT_HEAD(&sc->ti_mc_listhead, mc, mc_entries);
1986 ti_add_mcast(sc, &mc->mc_addr);
1987 }
1988 if_maddr_runlock(ifp);
1989
1990 /* Re-enable interrupts. */
1991 CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs);
1992 }
1993
1994 /*
1995 * Check to see if the BIOS has configured us for a 64 bit slot when
1996 * we aren't actually in one. If we detect this condition, we can work
1997 * around it on the Tigon 2 by setting a bit in the PCI state register,
1998 * but for the Tigon 1 we must give up and abort the interface attach.
1999 */
2000 static int
2001 ti_64bitslot_war(struct ti_softc *sc)
2002 {
2003
2004 if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) {
2005 CSR_WRITE_4(sc, 0x600, 0);
2006 CSR_WRITE_4(sc, 0x604, 0);
2007 CSR_WRITE_4(sc, 0x600, 0x5555AAAA);
2008 if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) {
2009 if (sc->ti_hwrev == TI_HWREV_TIGON)
2010 return (EINVAL);
2011 else {
2012 TI_SETBIT(sc, TI_PCI_STATE,
2013 TI_PCISTATE_32BIT_BUS);
2014 return (0);
2015 }
2016 }
2017 }
2018
2019 return (0);
2020 }
2021
2022 /*
2023 * Do endian, PCI and DMA initialization. Also check the on-board ROM
2024 * self-test results.
2025 */
2026 static int
2027 ti_chipinit(struct ti_softc *sc)
2028 {
2029 uint32_t cacheline;
2030 uint32_t pci_writemax = 0;
2031 uint32_t hdrsplit;
2032
2033 /* Initialize link to down state. */
2034 sc->ti_linkstat = TI_EV_CODE_LINK_DOWN;
2035
2036 /* Set endianness before we access any non-PCI registers. */
2037 #if 0 && BYTE_ORDER == BIG_ENDIAN
2038 CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
2039 TI_MHC_BIGENDIAN_INIT | (TI_MHC_BIGENDIAN_INIT << 24));
2040 #else
2041 CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
2042 TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24));
2043 #endif
2044
2045 /* Check the ROM failed bit to see if self-tests passed. */
2046 if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) {
2047 device_printf(sc->ti_dev, "board self-diagnostics failed!\n");
2048 return (ENODEV);
2049 }
2050
2051 /* Halt the CPU. */
2052 TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT);
2053
2054 /* Figure out the hardware revision. */
2055 switch (CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK) {
2056 case TI_REV_TIGON_I:
2057 sc->ti_hwrev = TI_HWREV_TIGON;
2058 break;
2059 case TI_REV_TIGON_II:
2060 sc->ti_hwrev = TI_HWREV_TIGON_II;
2061 break;
2062 default:
2063 device_printf(sc->ti_dev, "unsupported chip revision\n");
2064 return (ENODEV);
2065 }
2066
2067 /* Do special setup for Tigon 2. */
2068 if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
2069 TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT);
2070 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K);
2071 TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS);
2072 }
2073
2074 /*
2075 * We don't have firmware source for the Tigon 1, so Tigon 1 boards
2076 * can't do header splitting.
2077 */
2078 #ifdef TI_JUMBO_HDRSPLIT
2079 if (sc->ti_hwrev != TI_HWREV_TIGON)
2080 sc->ti_hdrsplit = 1;
2081 else
2082 device_printf(sc->ti_dev,
2083 "can't do header splitting on a Tigon I board\n");
2084 #endif /* TI_JUMBO_HDRSPLIT */
2085
2086 /* Set up the PCI state register. */
2087 CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD|TI_PCI_WRITE_CMD);
2088 if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
2089 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT);
2090 }
2091
2092 /* Clear the read/write max DMA parameters. */
2093 TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA|
2094 TI_PCISTATE_READ_MAXDMA));
2095
2096 /* Get cache line size. */
2097 cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF;
2098
2099 /*
2100 * If the system has set enabled the PCI memory write
2101 * and invalidate command in the command register, set
2102 * the write max parameter accordingly. This is necessary
2103 * to use MWI with the Tigon 2.
2104 */
2105 if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCIM_CMD_MWIEN) {
2106 switch (cacheline) {
2107 case 1:
2108 case 4:
2109 case 8:
2110 case 16:
2111 case 32:
2112 case 64:
2113 break;
2114 default:
2115 /* Disable PCI memory write and invalidate. */
2116 if (bootverbose)
2117 device_printf(sc->ti_dev, "cache line size %d"
2118 " not supported; disabling PCI MWI\n",
2119 cacheline);
2120 CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc,
2121 TI_PCI_CMDSTAT) & ~PCIM_CMD_MWIEN);
2122 break;
2123 }
2124 }
2125
2126 TI_SETBIT(sc, TI_PCI_STATE, pci_writemax);
2127
2128 /* This sets the min dma param all the way up (0xff). */
2129 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA);
2130
2131 if (sc->ti_hdrsplit)
2132 hdrsplit = TI_OPMODE_JUMBO_HDRSPLIT;
2133 else
2134 hdrsplit = 0;
2135
2136 /* Configure DMA variables. */
2137 #if BYTE_ORDER == BIG_ENDIAN
2138 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_BD |
2139 TI_OPMODE_BYTESWAP_DATA | TI_OPMODE_WORDSWAP_BD |
2140 TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB |
2141 TI_OPMODE_DONT_FRAG_JUMBO | hdrsplit);
2142 #else /* BYTE_ORDER */
2143 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_DATA|
2144 TI_OPMODE_WORDSWAP_BD|TI_OPMODE_DONT_FRAG_JUMBO|
2145 TI_OPMODE_WARN_ENB|TI_OPMODE_FATAL_ENB | hdrsplit);
2146 #endif /* BYTE_ORDER */
2147
2148 /*
2149 * Only allow 1 DMA channel to be active at a time.
2150 * I don't think this is a good idea, but without it
2151 * the firmware racks up lots of nicDmaReadRingFull
2152 * errors. This is not compatible with hardware checksums.
2153 */
2154 if ((sc->ti_ifp->if_capenable & (IFCAP_TXCSUM | IFCAP_RXCSUM)) == 0)
2155 TI_SETBIT(sc, TI_GCR_OPMODE, TI_OPMODE_1_DMA_ACTIVE);
2156
2157 /* Recommended settings from Tigon manual. */
2158 CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W);
2159 CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W);
2160
2161 if (ti_64bitslot_war(sc)) {
2162 device_printf(sc->ti_dev, "bios thinks we're in a 64 bit slot, "
2163 "but we aren't");
2164 return (EINVAL);
2165 }
2166
2167 return (0);
2168 }
2169
2170 /*
2171 * Initialize the general information block and firmware, and
2172 * start the CPU(s) running.
2173 */
2174 static int
2175 ti_gibinit(struct ti_softc *sc)
2176 {
2177 struct ifnet *ifp;
2178 struct ti_rcb *rcb;
2179 int i;
2180
2181 TI_LOCK_ASSERT(sc);
2182
2183 ifp = sc->ti_ifp;
2184
2185 /* Disable interrupts for now. */
2186 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
2187
2188 /* Tell the chip where to find the general information block. */
2189 CSR_WRITE_4(sc, TI_GCR_GENINFO_HI,
2190 (uint64_t)sc->ti_rdata.ti_info_paddr >> 32);
2191 CSR_WRITE_4(sc, TI_GCR_GENINFO_LO,
2192 sc->ti_rdata.ti_info_paddr & 0xFFFFFFFF);
2193
2194 /* Load the firmware into SRAM. */
2195 ti_loadfw(sc);
2196
2197 /* Set up the contents of the general info and ring control blocks. */
2198
2199 /* Set up the event ring and producer pointer. */
2200 bzero(sc->ti_rdata.ti_event_ring, TI_EVENT_RING_SZ);
2201 rcb = &sc->ti_rdata.ti_info->ti_ev_rcb;
2202 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_event_ring_paddr);
2203 rcb->ti_flags = 0;
2204 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_ev_prodidx_ptr,
2205 sc->ti_rdata.ti_status_paddr +
2206 offsetof(struct ti_status, ti_ev_prodidx_r));
2207 sc->ti_ev_prodidx.ti_idx = 0;
2208 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0);
2209 sc->ti_ev_saved_considx = 0;
2210
2211 /* Set up the command ring and producer mailbox. */
2212 rcb = &sc->ti_rdata.ti_info->ti_cmd_rcb;
2213 ti_hostaddr64(&rcb->ti_hostaddr, TI_GCR_NIC_ADDR(TI_GCR_CMDRING));
2214 rcb->ti_flags = 0;
2215 rcb->ti_max_len = 0;
2216 for (i = 0; i < TI_CMD_RING_CNT; i++) {
2217 CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0);
2218 }
2219 CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0);
2220 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0);
2221 sc->ti_cmd_saved_prodidx = 0;
2222
2223 /*
2224 * Assign the address of the stats refresh buffer.
2225 * We re-use the current stats buffer for this to
2226 * conserve memory.
2227 */
2228 bzero(&sc->ti_rdata.ti_info->ti_stats, sizeof(struct ti_stats));
2229 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_refresh_stats_ptr,
2230 sc->ti_rdata.ti_info_paddr + offsetof(struct ti_gib, ti_stats));
2231
2232 /* Set up the standard receive ring. */
2233 rcb = &sc->ti_rdata.ti_info->ti_std_rx_rcb;
2234 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_std_ring_paddr);
2235 rcb->ti_max_len = TI_FRAMELEN;
2236 rcb->ti_flags = 0;
2237 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2238 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2239 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2240 if (sc->ti_ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
2241 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2242
2243 /* Set up the jumbo receive ring. */
2244 rcb = &sc->ti_rdata.ti_info->ti_jumbo_rx_rcb;
2245 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_jumbo_ring_paddr);
2246
2247 #ifndef TI_SF_BUF_JUMBO
2248 rcb->ti_max_len = MJUM9BYTES - ETHER_ALIGN;
2249 rcb->ti_flags = 0;
2250 #else
2251 rcb->ti_max_len = PAGE_SIZE;
2252 rcb->ti_flags = TI_RCB_FLAG_USE_EXT_RX_BD;
2253 #endif
2254 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2255 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2256 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2257 if (sc->ti_ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
2258 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2259
2260 /*
2261 * Set up the mini ring. Only activated on the
2262 * Tigon 2 but the slot in the config block is
2263 * still there on the Tigon 1.
2264 */
2265 rcb = &sc->ti_rdata.ti_info->ti_mini_rx_rcb;
2266 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_mini_ring_paddr);
2267 rcb->ti_max_len = MHLEN - ETHER_ALIGN;
2268 if (sc->ti_hwrev == TI_HWREV_TIGON)
2269 rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED;
2270 else
2271 rcb->ti_flags = 0;
2272 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2273 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2274 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2275 if (sc->ti_ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
2276 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2277
2278 /*
2279 * Set up the receive return ring.
2280 */
2281 rcb = &sc->ti_rdata.ti_info->ti_return_rcb;
2282 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_return_ring_paddr);
2283 rcb->ti_flags = 0;
2284 rcb->ti_max_len = TI_RETURN_RING_CNT;
2285 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_return_prodidx_ptr,
2286 sc->ti_rdata.ti_status_paddr +
2287 offsetof(struct ti_status, ti_return_prodidx_r));
2288
2289 /*
2290 * Set up the tx ring. Note: for the Tigon 2, we have the option
2291 * of putting the transmit ring in the host's address space and
2292 * letting the chip DMA it instead of leaving the ring in the NIC's
2293 * memory and accessing it through the shared memory region. We
2294 * do this for the Tigon 2, but it doesn't work on the Tigon 1,
2295 * so we have to revert to the shared memory scheme if we detect
2296 * a Tigon 1 chip.
2297 */
2298 CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE);
2299 if (sc->ti_rdata.ti_tx_ring != NULL)
2300 bzero(sc->ti_rdata.ti_tx_ring, TI_TX_RING_SZ);
2301 rcb = &sc->ti_rdata.ti_info->ti_tx_rcb;
2302 if (sc->ti_hwrev == TI_HWREV_TIGON)
2303 rcb->ti_flags = 0;
2304 else
2305 rcb->ti_flags = TI_RCB_FLAG_HOST_RING;
2306 if (sc->ti_ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
2307 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2308 if (sc->ti_ifp->if_capenable & IFCAP_TXCSUM)
2309 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2310 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2311 rcb->ti_max_len = TI_TX_RING_CNT;
2312 if (sc->ti_hwrev == TI_HWREV_TIGON)
2313 ti_hostaddr64(&rcb->ti_hostaddr, TI_TX_RING_BASE);
2314 else
2315 ti_hostaddr64(&rcb->ti_hostaddr,
2316 sc->ti_rdata.ti_tx_ring_paddr);
2317 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_tx_considx_ptr,
2318 sc->ti_rdata.ti_status_paddr +
2319 offsetof(struct ti_status, ti_tx_considx_r));
2320
2321 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, sc->ti_cdata.ti_gib_map,
2322 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2323 bus_dmamap_sync(sc->ti_cdata.ti_status_tag, sc->ti_cdata.ti_status_map,
2324 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2325 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag,
2326 sc->ti_cdata.ti_event_ring_map,
2327 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
2328 if (sc->ti_rdata.ti_tx_ring != NULL)
2329 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag,
2330 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE);
2331
2332 /* Set up tunables */
2333 #if 0
2334 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN)
2335 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
2336 (sc->ti_rx_coal_ticks / 10));
2337 else
2338 #endif
2339 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, sc->ti_rx_coal_ticks);
2340 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks);
2341 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
2342 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds);
2343 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds);
2344 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio);
2345
2346 /* Turn interrupts on. */
2347 CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0);
2348 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
2349
2350 /* Start CPU. */
2351 TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP));
2352
2353 return (0);
2354 }
2355
2356 /*
2357 * Probe for a Tigon chip. Check the PCI vendor and device IDs
2358 * against our list and return its name if we find a match.
2359 */
2360 static int
2361 ti_probe(device_t dev)
2362 {
2363 const struct ti_type *t;
2364
2365 t = ti_devs;
2366
2367 while (t->ti_name != NULL) {
2368 if ((pci_get_vendor(dev) == t->ti_vid) &&
2369 (pci_get_device(dev) == t->ti_did)) {
2370 device_set_desc(dev, t->ti_name);
2371 return (BUS_PROBE_DEFAULT);
2372 }
2373 t++;
2374 }
2375
2376 return (ENXIO);
2377 }
2378
2379 static int
2380 ti_attach(device_t dev)
2381 {
2382 struct ifnet *ifp;
2383 struct ti_softc *sc;
2384 int error = 0, rid;
2385 u_char eaddr[6];
2386
2387 sc = device_get_softc(dev);
2388 sc->ti_dev = dev;
2389
2390 mtx_init(&sc->ti_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
2391 MTX_DEF);
2392 callout_init_mtx(&sc->ti_watchdog, &sc->ti_mtx, 0);
2393 ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts);
2394 ifp = sc->ti_ifp = if_alloc(IFT_ETHER);
2395 if (ifp == NULL) {
2396 device_printf(dev, "can not if_alloc()\n");
2397 error = ENOSPC;
2398 goto fail;
2399 }
2400 sc->ti_ifp->if_hwassist = TI_CSUM_FEATURES;
2401 sc->ti_ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_RXCSUM;
2402 sc->ti_ifp->if_capenable = sc->ti_ifp->if_capabilities;
2403
2404 /*
2405 * Map control/status registers.
2406 */
2407 pci_enable_busmaster(dev);
2408
2409 rid = PCIR_BAR(0);
2410 sc->ti_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
2411 RF_ACTIVE);
2412
2413 if (sc->ti_res == NULL) {
2414 device_printf(dev, "couldn't map memory\n");
2415 error = ENXIO;
2416 goto fail;
2417 }
2418
2419 sc->ti_btag = rman_get_bustag(sc->ti_res);
2420 sc->ti_bhandle = rman_get_bushandle(sc->ti_res);
2421
2422 /* Allocate interrupt */
2423 rid = 0;
2424
2425 sc->ti_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
2426 RF_SHAREABLE | RF_ACTIVE);
2427
2428 if (sc->ti_irq == NULL) {
2429 device_printf(dev, "couldn't map interrupt\n");
2430 error = ENXIO;
2431 goto fail;
2432 }
2433
2434 if (ti_chipinit(sc)) {
2435 device_printf(dev, "chip initialization failed\n");
2436 error = ENXIO;
2437 goto fail;
2438 }
2439
2440 /* Zero out the NIC's on-board SRAM. */
2441 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
2442
2443 /* Init again -- zeroing memory may have clobbered some registers. */
2444 if (ti_chipinit(sc)) {
2445 device_printf(dev, "chip initialization failed\n");
2446 error = ENXIO;
2447 goto fail;
2448 }
2449
2450 /*
2451 * Get station address from the EEPROM. Note: the manual states
2452 * that the MAC address is at offset 0x8c, however the data is
2453 * stored as two longwords (since that's how it's loaded into
2454 * the NIC). This means the MAC address is actually preceded
2455 * by two zero bytes. We need to skip over those.
2456 */
2457 if (ti_read_eeprom(sc, eaddr, TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) {
2458 device_printf(dev, "failed to read station address\n");
2459 error = ENXIO;
2460 goto fail;
2461 }
2462
2463 /* Allocate working area for memory dump. */
2464 sc->ti_membuf = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF, M_NOWAIT);
2465 sc->ti_membuf2 = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF,
2466 M_NOWAIT);
2467 if (sc->ti_membuf == NULL || sc->ti_membuf2 == NULL) {
2468 device_printf(dev, "cannot allocate memory buffer\n");
2469 error = ENOMEM;
2470 goto fail;
2471 }
2472 if ((error = ti_dma_alloc(sc)) != 0)
2473 goto fail;
2474
2475 /*
2476 * We really need a better way to tell a 1000baseTX card
2477 * from a 1000baseSX one, since in theory there could be
2478 * OEMed 1000baseTX cards from lame vendors who aren't
2479 * clever enough to change the PCI ID. For the moment
2480 * though, the AceNIC is the only copper card available.
2481 */
2482 if (pci_get_vendor(dev) == ALT_VENDORID &&
2483 pci_get_device(dev) == ALT_DEVICEID_ACENIC_COPPER)
2484 sc->ti_copper = 1;
2485 /* Ok, it's not the only copper card available. */
2486 if (pci_get_vendor(dev) == NG_VENDORID &&
2487 pci_get_device(dev) == NG_DEVICEID_GA620T)
2488 sc->ti_copper = 1;
2489
2490 /* Set default tunable values. */
2491 ti_sysctl_node(sc);
2492
2493 /* Set up ifnet structure */
2494 ifp->if_softc = sc;
2495 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2496 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2497 ifp->if_ioctl = ti_ioctl;
2498 ifp->if_start = ti_start;
2499 ifp->if_init = ti_init;
2500 ifp->if_baudrate = IF_Gbps(1UL);
2501 ifp->if_snd.ifq_drv_maxlen = TI_TX_RING_CNT - 1;
2502 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
2503 IFQ_SET_READY(&ifp->if_snd);
2504
2505 /* Set up ifmedia support. */
2506 if (sc->ti_copper) {
2507 /*
2508 * Copper cards allow manual 10/100 mode selection,
2509 * but not manual 1000baseTX mode selection. Why?
2510 * Becuase currently there's no way to specify the
2511 * master/slave setting through the firmware interface,
2512 * so Alteon decided to just bag it and handle it
2513 * via autonegotiation.
2514 */
2515 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
2516 ifmedia_add(&sc->ifmedia,
2517 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
2518 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
2519 ifmedia_add(&sc->ifmedia,
2520 IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
2521 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T, 0, NULL);
2522 ifmedia_add(&sc->ifmedia,
2523 IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL);
2524 } else {
2525 /* Fiber cards don't support 10/100 modes. */
2526 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2527 ifmedia_add(&sc->ifmedia,
2528 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2529 }
2530 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2531 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
2532
2533 /*
2534 * We're assuming here that card initialization is a sequential
2535 * thing. If it isn't, multiple cards probing at the same time
2536 * could stomp on the list of softcs here.
2537 */
2538
2539 /* Register the device */
2540 sc->dev = make_dev(&ti_cdevsw, device_get_unit(dev), UID_ROOT,
2541 GID_OPERATOR, 0600, "ti%d", device_get_unit(dev));
2542 sc->dev->si_drv1 = sc;
2543
2544 /*
2545 * Call MI attach routine.
2546 */
2547 ether_ifattach(ifp, eaddr);
2548
2549 /* VLAN capability setup. */
2550 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM |
2551 IFCAP_VLAN_HWTAGGING;
2552 ifp->if_capenable = ifp->if_capabilities;
2553 /* Tell the upper layer we support VLAN over-sized frames. */
2554 ifp->if_hdrlen = sizeof(struct ether_vlan_header);
2555
2556 /* Driver supports link state tracking. */
2557 ifp->if_capabilities |= IFCAP_LINKSTATE;
2558 ifp->if_capenable |= IFCAP_LINKSTATE;
2559
2560 /* Hook interrupt last to avoid having to lock softc */
2561 error = bus_setup_intr(dev, sc->ti_irq, INTR_TYPE_NET|INTR_MPSAFE,
2562 NULL, ti_intr, sc, &sc->ti_intrhand);
2563
2564 if (error) {
2565 device_printf(dev, "couldn't set up irq\n");
2566 goto fail;
2567 }
2568
2569 fail:
2570 if (error)
2571 ti_detach(dev);
2572
2573 return (error);
2574 }
2575
2576 /*
2577 * Shutdown hardware and free up resources. This can be called any
2578 * time after the mutex has been initialized. It is called in both
2579 * the error case in attach and the normal detach case so it needs
2580 * to be careful about only freeing resources that have actually been
2581 * allocated.
2582 */
2583 static int
2584 ti_detach(device_t dev)
2585 {
2586 struct ti_softc *sc;
2587 struct ifnet *ifp;
2588
2589 sc = device_get_softc(dev);
2590 if (sc->dev)
2591 destroy_dev(sc->dev);
2592 KASSERT(mtx_initialized(&sc->ti_mtx), ("ti mutex not initialized"));
2593 ifp = sc->ti_ifp;
2594 if (device_is_attached(dev)) {
2595 ether_ifdetach(ifp);
2596 TI_LOCK(sc);
2597 ti_stop(sc);
2598 TI_UNLOCK(sc);
2599 }
2600
2601 /* These should only be active if attach succeeded */
2602 callout_drain(&sc->ti_watchdog);
2603 bus_generic_detach(dev);
2604 ti_dma_free(sc);
2605 ifmedia_removeall(&sc->ifmedia);
2606
2607 if (sc->ti_intrhand)
2608 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand);
2609 if (sc->ti_irq)
2610 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq);
2611 if (sc->ti_res) {
2612 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0),
2613 sc->ti_res);
2614 }
2615 if (ifp)
2616 if_free(ifp);
2617 if (sc->ti_membuf)
2618 free(sc->ti_membuf, M_DEVBUF);
2619 if (sc->ti_membuf2)
2620 free(sc->ti_membuf2, M_DEVBUF);
2621
2622 mtx_destroy(&sc->ti_mtx);
2623
2624 return (0);
2625 }
2626
2627 #ifdef TI_JUMBO_HDRSPLIT
2628 /*
2629 * If hdr_len is 0, that means that header splitting wasn't done on
2630 * this packet for some reason. The two most likely reasons are that
2631 * the protocol isn't a supported protocol for splitting, or this
2632 * packet had a fragment offset that wasn't 0.
2633 *
2634 * The header length, if it is non-zero, will always be the length of
2635 * the headers on the packet, but that length could be longer than the
2636 * first mbuf. So we take the minimum of the two as the actual
2637 * length.
2638 */
2639 static __inline void
2640 ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len, int idx)
2641 {
2642 int i = 0;
2643 int lengths[4] = {0, 0, 0, 0};
2644 struct mbuf *m, *mp;
2645
2646 if (hdr_len != 0)
2647 top->m_len = min(hdr_len, top->m_len);
2648 pkt_len -= top->m_len;
2649 lengths[i++] = top->m_len;
2650
2651 mp = top;
2652 for (m = top->m_next; m && pkt_len; m = m->m_next) {
2653 m->m_len = m->m_ext.ext_size = min(m->m_len, pkt_len);
2654 pkt_len -= m->m_len;
2655 lengths[i++] = m->m_len;
2656 mp = m;
2657 }
2658
2659 #if 0
2660 if (hdr_len != 0)
2661 printf("got split packet: ");
2662 else
2663 printf("got non-split packet: ");
2664
2665 printf("%d,%d,%d,%d = %d\n", lengths[0],
2666 lengths[1], lengths[2], lengths[3],
2667 lengths[0] + lengths[1] + lengths[2] +
2668 lengths[3]);
2669 #endif
2670
2671 if (pkt_len)
2672 panic("header splitting didn't");
2673
2674 if (m) {
2675 m_freem(m);
2676 mp->m_next = NULL;
2677
2678 }
2679 if (mp->m_next != NULL)
2680 panic("ti_hdr_split: last mbuf in chain should be null");
2681 }
2682 #endif /* TI_JUMBO_HDRSPLIT */
2683
2684 static void
2685 ti_discard_std(struct ti_softc *sc, int i)
2686 {
2687
2688 struct ti_rx_desc *r;
2689
2690 r = &sc->ti_rdata.ti_rx_std_ring[i];
2691 r->ti_len = MCLBYTES - ETHER_ALIGN;
2692 r->ti_type = TI_BDTYPE_RECV_BD;
2693 r->ti_flags = 0;
2694 r->ti_vlan_tag = 0;
2695 r->ti_tcp_udp_cksum = 0;
2696 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2697 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
2698 r->ti_idx = i;
2699 }
2700
2701 static void
2702 ti_discard_mini(struct ti_softc *sc, int i)
2703 {
2704
2705 struct ti_rx_desc *r;
2706
2707 r = &sc->ti_rdata.ti_rx_mini_ring[i];
2708 r->ti_len = MHLEN - ETHER_ALIGN;
2709 r->ti_type = TI_BDTYPE_RECV_BD;
2710 r->ti_flags = TI_BDFLAG_MINI_RING;
2711 r->ti_vlan_tag = 0;
2712 r->ti_tcp_udp_cksum = 0;
2713 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2714 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
2715 r->ti_idx = i;
2716 }
2717
2718 #ifndef TI_SF_BUF_JUMBO
2719 static void
2720 ti_discard_jumbo(struct ti_softc *sc, int i)
2721 {
2722
2723 struct ti_rx_desc *r;
2724
2725 r = &sc->ti_rdata.ti_rx_jumbo_ring[i];
2726 r->ti_len = MJUM9BYTES - ETHER_ALIGN;
2727 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
2728 r->ti_flags = TI_BDFLAG_JUMBO_RING;
2729 r->ti_vlan_tag = 0;
2730 r->ti_tcp_udp_cksum = 0;
2731 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM)
2732 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
2733 r->ti_idx = i;
2734 }
2735 #endif
2736
2737 /*
2738 * Frame reception handling. This is called if there's a frame
2739 * on the receive return list.
2740 *
2741 * Note: we have to be able to handle three possibilities here:
2742 * 1) the frame is from the mini receive ring (can only happen)
2743 * on Tigon 2 boards)
2744 * 2) the frame is from the jumbo recieve ring
2745 * 3) the frame is from the standard receive ring
2746 */
2747
2748 static void
2749 ti_rxeof(struct ti_softc *sc)
2750 {
2751 struct ifnet *ifp;
2752 #ifdef TI_SF_BUF_JUMBO
2753 bus_dmamap_t map;
2754 #endif
2755 struct ti_cmd_desc cmd;
2756 int jumbocnt, minicnt, stdcnt, ti_len;
2757
2758 TI_LOCK_ASSERT(sc);
2759
2760 ifp = sc->ti_ifp;
2761
2762 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag,
2763 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_POSTWRITE);
2764 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN)
2765 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag,
2766 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_POSTWRITE);
2767 if (sc->ti_rdata.ti_rx_mini_ring != NULL)
2768 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag,
2769 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_POSTWRITE);
2770 bus_dmamap_sync(sc->ti_cdata.ti_rx_return_ring_tag,
2771 sc->ti_cdata.ti_rx_return_ring_map, BUS_DMASYNC_POSTREAD);
2772
2773 jumbocnt = minicnt = stdcnt = 0;
2774 while (sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) {
2775 struct ti_rx_desc *cur_rx;
2776 uint32_t rxidx;
2777 struct mbuf *m = NULL;
2778 uint16_t vlan_tag = 0;
2779 int have_tag = 0;
2780
2781 cur_rx =
2782 &sc->ti_rdata.ti_rx_return_ring[sc->ti_rx_saved_considx];
2783 rxidx = cur_rx->ti_idx;
2784 ti_len = cur_rx->ti_len;
2785 TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT);
2786
2787 if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) {
2788 have_tag = 1;
2789 vlan_tag = cur_rx->ti_vlan_tag;
2790 }
2791
2792 if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) {
2793 jumbocnt++;
2794 TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT);
2795 m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx];
2796 #ifndef TI_SF_BUF_JUMBO
2797 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2798 ifp->if_ierrors++;
2799 ti_discard_jumbo(sc, rxidx);
2800 continue;
2801 }
2802 if (ti_newbuf_jumbo(sc, rxidx, NULL) != 0) {
2803 ifp->if_iqdrops++;
2804 ti_discard_jumbo(sc, rxidx);
2805 continue;
2806 }
2807 m->m_len = ti_len;
2808 #else /* !TI_SF_BUF_JUMBO */
2809 sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL;
2810 map = sc->ti_cdata.ti_rx_jumbo_maps[rxidx];
2811 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map,
2812 BUS_DMASYNC_POSTREAD);
2813 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag, map);
2814 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2815 ifp->if_ierrors++;
2816 ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
2817 continue;
2818 }
2819 if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) {
2820 ifp->if_iqdrops++;
2821 ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
2822 continue;
2823 }
2824 #ifdef TI_JUMBO_HDRSPLIT
2825 if (sc->ti_hdrsplit)
2826 ti_hdr_split(m, TI_HOSTADDR(cur_rx->ti_addr),
2827 ti_len, rxidx);
2828 else
2829 #endif /* TI_JUMBO_HDRSPLIT */
2830 m_adj(m, ti_len - m->m_pkthdr.len);
2831 #endif /* TI_SF_BUF_JUMBO */
2832 } else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) {
2833 minicnt++;
2834 TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT);
2835 m = sc->ti_cdata.ti_rx_mini_chain[rxidx];
2836 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2837 ifp->if_ierrors++;
2838 ti_discard_mini(sc, rxidx);
2839 continue;
2840 }
2841 if (ti_newbuf_mini(sc, rxidx) != 0) {
2842 ifp->if_iqdrops++;
2843 ti_discard_mini(sc, rxidx);
2844 continue;
2845 }
2846 m->m_len = ti_len;
2847 } else {
2848 stdcnt++;
2849 TI_INC(sc->ti_std, TI_STD_RX_RING_CNT);
2850 m = sc->ti_cdata.ti_rx_std_chain[rxidx];
2851 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2852 ifp->if_ierrors++;
2853 ti_discard_std(sc, rxidx);
2854 continue;
2855 }
2856 if (ti_newbuf_std(sc, rxidx) != 0) {
2857 ifp->if_iqdrops++;
2858 ti_discard_std(sc, rxidx);
2859 continue;
2860 }
2861 m->m_len = ti_len;
2862 }
2863
2864 m->m_pkthdr.len = ti_len;
2865 ifp->if_ipackets++;
2866 m->m_pkthdr.rcvif = ifp;
2867
2868 if (ifp->if_capenable & IFCAP_RXCSUM) {
2869 if (cur_rx->ti_flags & TI_BDFLAG_IP_CKSUM) {
2870 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2871 if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0)
2872 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2873 }
2874 if (cur_rx->ti_flags & TI_BDFLAG_TCP_UDP_CKSUM) {
2875 m->m_pkthdr.csum_data =
2876 cur_rx->ti_tcp_udp_cksum;
2877 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID;
2878 }
2879 }
2880
2881 /*
2882 * If we received a packet with a vlan tag,
2883 * tag it before passing the packet upward.
2884 */
2885 if (have_tag) {
2886 m->m_pkthdr.ether_vtag = vlan_tag;
2887 m->m_flags |= M_VLANTAG;
2888 }
2889 TI_UNLOCK(sc);
2890 (*ifp->if_input)(ifp, m);
2891 TI_LOCK(sc);
2892 }
2893
2894 bus_dmamap_sync(sc->ti_cdata.ti_rx_return_ring_tag,
2895 sc->ti_cdata.ti_rx_return_ring_map, BUS_DMASYNC_PREREAD);
2896 /* Only necessary on the Tigon 1. */
2897 if (sc->ti_hwrev == TI_HWREV_TIGON)
2898 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX,
2899 sc->ti_rx_saved_considx);
2900
2901 if (stdcnt > 0) {
2902 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag,
2903 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_PREWRITE);
2904 TI_UPDATE_STDPROD(sc, sc->ti_std);
2905 }
2906 if (minicnt > 0) {
2907 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag,
2908 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_PREWRITE);
2909 TI_UPDATE_MINIPROD(sc, sc->ti_mini);
2910 }
2911 if (jumbocnt > 0) {
2912 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag,
2913 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE);
2914 TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo);
2915 }
2916 }
2917
2918 static void
2919 ti_txeof(struct ti_softc *sc)
2920 {
2921 struct ti_txdesc *txd;
2922 struct ti_tx_desc txdesc;
2923 struct ti_tx_desc *cur_tx = NULL;
2924 struct ifnet *ifp;
2925 int idx;
2926
2927 ifp = sc->ti_ifp;
2928
2929 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
2930 if (txd == NULL)
2931 return;
2932
2933 if (sc->ti_rdata.ti_tx_ring != NULL)
2934 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag,
2935 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_POSTWRITE);
2936 /*
2937 * Go through our tx ring and free mbufs for those
2938 * frames that have been sent.
2939 */
2940 for (idx = sc->ti_tx_saved_considx; idx != sc->ti_tx_considx.ti_idx;
2941 TI_INC(idx, TI_TX_RING_CNT)) {
2942 if (sc->ti_hwrev == TI_HWREV_TIGON) {
2943 ti_mem_read(sc, TI_TX_RING_BASE + idx * sizeof(txdesc),
2944 sizeof(txdesc), &txdesc);
2945 cur_tx = &txdesc;
2946 } else
2947 cur_tx = &sc->ti_rdata.ti_tx_ring[idx];
2948 sc->ti_txcnt--;
2949 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2950 if ((cur_tx->ti_flags & TI_BDFLAG_END) == 0)
2951 continue;
2952 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap,
2953 BUS_DMASYNC_POSTWRITE);
2954 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap);
2955
2956 ifp->if_opackets++;
2957 m_freem(txd->tx_m);
2958 txd->tx_m = NULL;
2959 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txbusyq, tx_q);
2960 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
2961 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
2962 }
2963 sc->ti_tx_saved_considx = idx;
2964 if (sc->ti_txcnt == 0)
2965 sc->ti_timer = 0;
2966 }
2967
2968 static void
2969 ti_intr(void *xsc)
2970 {
2971 struct ti_softc *sc;
2972 struct ifnet *ifp;
2973
2974 sc = xsc;
2975 TI_LOCK(sc);
2976 ifp = sc->ti_ifp;
2977
2978 /* Make sure this is really our interrupt. */
2979 if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) {
2980 TI_UNLOCK(sc);
2981 return;
2982 }
2983
2984 /* Ack interrupt and stop others from occuring. */
2985 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
2986
2987 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2988 bus_dmamap_sync(sc->ti_cdata.ti_status_tag,
2989 sc->ti_cdata.ti_status_map, BUS_DMASYNC_POSTREAD);
2990 /* Check RX return ring producer/consumer */
2991 ti_rxeof(sc);
2992
2993 /* Check TX ring producer/consumer */
2994 ti_txeof(sc);
2995 bus_dmamap_sync(sc->ti_cdata.ti_status_tag,
2996 sc->ti_cdata.ti_status_map, BUS_DMASYNC_PREREAD);
2997 }
2998
2999 ti_handle_events(sc);
3000
3001 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3002 /* Re-enable interrupts. */
3003 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
3004 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
3005 ti_start_locked(ifp);
3006 }
3007
3008 TI_UNLOCK(sc);
3009 }
3010
3011 static void
3012 ti_stats_update(struct ti_softc *sc)
3013 {
3014 struct ifnet *ifp;
3015 struct ti_stats *s;
3016
3017 ifp = sc->ti_ifp;
3018
3019 if (sc->ti_stat_ticks == 0)
3020 return;
3021 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, sc->ti_cdata.ti_gib_map,
3022 BUS_DMASYNC_POSTREAD);
3023
3024 s = &sc->ti_rdata.ti_info->ti_stats;
3025 ifp->if_collisions += (s->dot3StatsSingleCollisionFrames +
3026 s->dot3StatsMultipleCollisionFrames +
3027 s->dot3StatsExcessiveCollisions + s->dot3StatsLateCollisions) -
3028 ifp->if_collisions;
3029
3030 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, sc->ti_cdata.ti_gib_map,
3031 BUS_DMASYNC_PREREAD);
3032 }
3033
3034 /*
3035 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
3036 * pointers to descriptors.
3037 */
3038 static int
3039 ti_encap(struct ti_softc *sc, struct mbuf **m_head)
3040 {
3041 struct ti_txdesc *txd;
3042 struct ti_tx_desc *f;
3043 struct ti_tx_desc txdesc;
3044 struct mbuf *m;
3045 bus_dma_segment_t txsegs[TI_MAXTXSEGS];
3046 uint16_t csum_flags;
3047 int error, frag, i, nseg;
3048
3049 if ((txd = STAILQ_FIRST(&sc->ti_cdata.ti_txfreeq)) == NULL)
3050 return (ENOBUFS);
3051
3052 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap,
3053 *m_head, txsegs, &nseg, 0);
3054 if (error == EFBIG) {
3055 m = m_defrag(*m_head, M_NOWAIT);
3056 if (m == NULL) {
3057 m_freem(*m_head);
3058 *m_head = NULL;
3059 return (ENOMEM);
3060 }
3061 *m_head = m;
3062 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_tx_tag,
3063 txd->tx_dmamap, *m_head, txsegs, &nseg, 0);
3064 if (error) {
3065 m_freem(*m_head);
3066 *m_head = NULL;
3067 return (error);
3068 }
3069 } else if (error != 0)
3070 return (error);
3071 if (nseg == 0) {
3072 m_freem(*m_head);
3073 *m_head = NULL;
3074 return (EIO);
3075 }
3076
3077 if (sc->ti_txcnt + nseg >= TI_TX_RING_CNT) {
3078 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap);
3079 return (ENOBUFS);
3080 }
3081 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap,
3082 BUS_DMASYNC_PREWRITE);
3083
3084 m = *m_head;
3085 csum_flags = 0;
3086 if (m->m_pkthdr.csum_flags & CSUM_IP)
3087 csum_flags |= TI_BDFLAG_IP_CKSUM;
3088 if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
3089 csum_flags |= TI_BDFLAG_TCP_UDP_CKSUM;
3090
3091 frag = sc->ti_tx_saved_prodidx;
3092 for (i = 0; i < nseg; i++) {
3093 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3094 bzero(&txdesc, sizeof(txdesc));
3095 f = &txdesc;
3096 } else
3097 f = &sc->ti_rdata.ti_tx_ring[frag];
3098 ti_hostaddr64(&f->ti_addr, txsegs[i].ds_addr);
3099 f->ti_len = txsegs[i].ds_len;
3100 f->ti_flags = csum_flags;
3101 if (m->m_flags & M_VLANTAG) {
3102 f->ti_flags |= TI_BDFLAG_VLAN_TAG;
3103 f->ti_vlan_tag = m->m_pkthdr.ether_vtag;
3104 } else {
3105 f->ti_vlan_tag = 0;
3106 }
3107
3108 if (sc->ti_hwrev == TI_HWREV_TIGON)
3109 ti_mem_write(sc, TI_TX_RING_BASE + frag *
3110 sizeof(txdesc), sizeof(txdesc), &txdesc);
3111 TI_INC(frag, TI_TX_RING_CNT);
3112 }
3113
3114 sc->ti_tx_saved_prodidx = frag;
3115 /* set TI_BDFLAG_END on the last descriptor */
3116 frag = (frag + TI_TX_RING_CNT - 1) % TI_TX_RING_CNT;
3117 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3118 txdesc.ti_flags |= TI_BDFLAG_END;
3119 ti_mem_write(sc, TI_TX_RING_BASE + frag * sizeof(txdesc),
3120 sizeof(txdesc), &txdesc);
3121 } else
3122 sc->ti_rdata.ti_tx_ring[frag].ti_flags |= TI_BDFLAG_END;
3123
3124 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txfreeq, tx_q);
3125 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txbusyq, txd, tx_q);
3126 txd->tx_m = m;
3127 sc->ti_txcnt += nseg;
3128
3129 return (0);
3130 }
3131
3132 static void
3133 ti_start(struct ifnet *ifp)
3134 {
3135 struct ti_softc *sc;
3136
3137 sc = ifp->if_softc;
3138 TI_LOCK(sc);
3139 ti_start_locked(ifp);
3140 TI_UNLOCK(sc);
3141 }
3142
3143 /*
3144 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
3145 * to the mbuf data regions directly in the transmit descriptors.
3146 */
3147 static void
3148 ti_start_locked(struct ifnet *ifp)
3149 {
3150 struct ti_softc *sc;
3151 struct mbuf *m_head = NULL;
3152 int enq = 0;
3153
3154 sc = ifp->if_softc;
3155
3156 for (; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) &&
3157 sc->ti_txcnt < (TI_TX_RING_CNT - 16);) {
3158 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
3159 if (m_head == NULL)
3160 break;
3161
3162 /*
3163 * XXX
3164 * safety overkill. If this is a fragmented packet chain
3165 * with delayed TCP/UDP checksums, then only encapsulate
3166 * it if we have enough descriptors to handle the entire
3167 * chain at once.
3168 * (paranoia -- may not actually be needed)
3169 */
3170 if (m_head->m_flags & M_FIRSTFRAG &&
3171 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) {
3172 if ((TI_TX_RING_CNT - sc->ti_txcnt) <
3173 m_head->m_pkthdr.csum_data + 16) {
3174 IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
3175 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
3176 break;
3177 }
3178 }
3179
3180 /*
3181 * Pack the data into the transmit ring. If we
3182 * don't have room, set the OACTIVE flag and wait
3183 * for the NIC to drain the ring.
3184 */
3185 if (ti_encap(sc, &m_head)) {
3186 if (m_head == NULL)
3187 break;
3188 IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
3189 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
3190 break;
3191 }
3192
3193 enq++;
3194 /*
3195 * If there's a BPF listener, bounce a copy of this frame
3196 * to him.
3197 */
3198 ETHER_BPF_MTAP(ifp, m_head);
3199 }
3200
3201 if (enq > 0) {
3202 if (sc->ti_rdata.ti_tx_ring != NULL)
3203 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag,
3204 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE);
3205 /* Transmit */
3206 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, sc->ti_tx_saved_prodidx);
3207
3208 /*
3209 * Set a timeout in case the chip goes out to lunch.
3210 */
3211 sc->ti_timer = 5;
3212 }
3213 }
3214
3215 static void
3216 ti_init(void *xsc)
3217 {
3218 struct ti_softc *sc;
3219
3220 sc = xsc;
3221 TI_LOCK(sc);
3222 ti_init_locked(sc);
3223 TI_UNLOCK(sc);
3224 }
3225
3226 static void
3227 ti_init_locked(void *xsc)
3228 {
3229 struct ti_softc *sc = xsc;
3230
3231 if (sc->ti_ifp->if_drv_flags & IFF_DRV_RUNNING)
3232 return;
3233
3234 /* Cancel pending I/O and flush buffers. */
3235 ti_stop(sc);
3236
3237 /* Init the gen info block, ring control blocks and firmware. */
3238 if (ti_gibinit(sc)) {
3239 device_printf(sc->ti_dev, "initialization failure\n");
3240 return;
3241 }
3242 }
3243
3244 static void ti_init2(struct ti_softc *sc)
3245 {
3246 struct ti_cmd_desc cmd;
3247 struct ifnet *ifp;
3248 uint8_t *ea;
3249 struct ifmedia *ifm;
3250 int tmp;
3251
3252 TI_LOCK_ASSERT(sc);
3253
3254 ifp = sc->ti_ifp;
3255
3256 /* Specify MTU and interface index. */
3257 CSR_WRITE_4(sc, TI_GCR_IFINDEX, device_get_unit(sc->ti_dev));
3258 CSR_WRITE_4(sc, TI_GCR_IFMTU, ifp->if_mtu +
3259 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN);
3260 TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0);
3261
3262 /* Load our MAC address. */
3263 ea = IF_LLADDR(sc->ti_ifp);
3264 CSR_WRITE_4(sc, TI_GCR_PAR0, (ea[0] << 8) | ea[1]);
3265 CSR_WRITE_4(sc, TI_GCR_PAR1,
3266 (ea[2] << 24) | (ea[3] << 16) | (ea[4] << 8) | ea[5]);
3267 TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0);
3268
3269 /* Enable or disable promiscuous mode as needed. */
3270 if (ifp->if_flags & IFF_PROMISC) {
3271 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0);
3272 } else {
3273 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0);
3274 }
3275
3276 /* Program multicast filter. */
3277 ti_setmulti(sc);
3278
3279 /*
3280 * If this is a Tigon 1, we should tell the
3281 * firmware to use software packet filtering.
3282 */
3283 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3284 TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0);
3285 }
3286
3287 /* Init RX ring. */
3288 if (ti_init_rx_ring_std(sc) != 0) {
3289 /* XXX */
3290 device_printf(sc->ti_dev, "no memory for std Rx buffers.\n");
3291 return;
3292 }
3293
3294 /* Init jumbo RX ring. */
3295 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN) {
3296 if (ti_init_rx_ring_jumbo(sc) != 0) {
3297 /* XXX */
3298 device_printf(sc->ti_dev,
3299 "no memory for jumbo Rx buffers.\n");
3300 return;
3301 }
3302 }
3303
3304 /*
3305 * If this is a Tigon 2, we can also configure the
3306 * mini ring.
3307 */
3308 if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
3309 if (ti_init_rx_ring_mini(sc) != 0) {
3310 /* XXX */
3311 device_printf(sc->ti_dev,
3312 "no memory for mini Rx buffers.\n");
3313 return;
3314 }
3315 }
3316
3317 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0);
3318 sc->ti_rx_saved_considx = 0;
3319
3320 /* Init TX ring. */
3321 ti_init_tx_ring(sc);
3322
3323 /* Tell firmware we're alive. */
3324 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0);
3325
3326 /* Enable host interrupts. */
3327 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
3328
3329 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3330 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3331 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc);
3332
3333 /*
3334 * Make sure to set media properly. We have to do this
3335 * here since we have to issue commands in order to set
3336 * the link negotiation and we can't issue commands until
3337 * the firmware is running.
3338 */
3339 ifm = &sc->ifmedia;
3340 tmp = ifm->ifm_media;
3341 ifm->ifm_media = ifm->ifm_cur->ifm_media;
3342 ti_ifmedia_upd_locked(sc);
3343 ifm->ifm_media = tmp;
3344 }
3345
3346 /*
3347 * Set media options.
3348 */
3349 static int
3350 ti_ifmedia_upd(struct ifnet *ifp)
3351 {
3352 struct ti_softc *sc;
3353 int error;
3354
3355 sc = ifp->if_softc;
3356 TI_LOCK(sc);
3357 error = ti_ifmedia_upd_locked(sc);
3358 TI_UNLOCK(sc);
3359
3360 return (error);
3361 }
3362
3363 static int
3364 ti_ifmedia_upd_locked(struct ti_softc *sc)
3365 {
3366 struct ifmedia *ifm;
3367 struct ti_cmd_desc cmd;
3368 uint32_t flowctl;
3369
3370 ifm = &sc->ifmedia;
3371
3372 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3373 return (EINVAL);
3374
3375 flowctl = 0;
3376
3377 switch (IFM_SUBTYPE(ifm->ifm_media)) {
3378 case IFM_AUTO:
3379 /*
3380 * Transmit flow control doesn't work on the Tigon 1.
3381 */
3382 flowctl = TI_GLNK_RX_FLOWCTL_Y;
3383
3384 /*
3385 * Transmit flow control can also cause problems on the
3386 * Tigon 2, apparantly with both the copper and fiber
3387 * boards. The symptom is that the interface will just
3388 * hang. This was reproduced with Alteon 180 switches.
3389 */
3390 #if 0
3391 if (sc->ti_hwrev != TI_HWREV_TIGON)
3392 flowctl |= TI_GLNK_TX_FLOWCTL_Y;
3393 #endif
3394
3395 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
3396 TI_GLNK_FULL_DUPLEX| flowctl |
3397 TI_GLNK_AUTONEGENB|TI_GLNK_ENB);
3398
3399 flowctl = TI_LNK_RX_FLOWCTL_Y;
3400 #if 0
3401 if (sc->ti_hwrev != TI_HWREV_TIGON)
3402 flowctl |= TI_LNK_TX_FLOWCTL_Y;
3403 #endif
3404
3405 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB|
3406 TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| flowctl |
3407 TI_LNK_AUTONEGENB|TI_LNK_ENB);
3408 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3409 TI_CMD_CODE_NEGOTIATE_BOTH, 0);
3410 break;
3411 case IFM_1000_SX:
3412 case IFM_1000_T:
3413 flowctl = TI_GLNK_RX_FLOWCTL_Y;
3414 #if 0
3415 if (sc->ti_hwrev != TI_HWREV_TIGON)
3416 flowctl |= TI_GLNK_TX_FLOWCTL_Y;
3417 #endif
3418
3419 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
3420 flowctl |TI_GLNK_ENB);
3421 CSR_WRITE_4(sc, TI_GCR_LINK, 0);
3422 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3423 TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX);
3424 }
3425 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3426 TI_CMD_CODE_NEGOTIATE_GIGABIT, 0);
3427 break;
3428 case IFM_100_FX:
3429 case IFM_10_FL:
3430 case IFM_100_TX:
3431 case IFM_10_T:
3432 flowctl = TI_LNK_RX_FLOWCTL_Y;
3433 #if 0
3434 if (sc->ti_hwrev != TI_HWREV_TIGON)
3435 flowctl |= TI_LNK_TX_FLOWCTL_Y;
3436 #endif
3437
3438 CSR_WRITE_4(sc, TI_GCR_GLINK, 0);
3439 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF|flowctl);
3440 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX ||
3441 IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
3442 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB);
3443 } else {
3444 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB);
3445 }
3446 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3447 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX);
3448 } else {
3449 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX);
3450 }
3451 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3452 TI_CMD_CODE_NEGOTIATE_10_100, 0);
3453 break;
3454 }
3455
3456 return (0);
3457 }
3458
3459 /*
3460 * Report current media status.
3461 */
3462 static void
3463 ti_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3464 {
3465 struct ti_softc *sc;
3466 uint32_t media = 0;
3467
3468 sc = ifp->if_softc;
3469
3470 TI_LOCK(sc);
3471
3472 ifmr->ifm_status = IFM_AVALID;
3473 ifmr->ifm_active = IFM_ETHER;
3474
3475 if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) {
3476 TI_UNLOCK(sc);
3477 return;
3478 }
3479
3480 ifmr->ifm_status |= IFM_ACTIVE;
3481
3482 if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) {
3483 media = CSR_READ_4(sc, TI_GCR_GLINK_STAT);
3484 if (sc->ti_copper)
3485 ifmr->ifm_active |= IFM_1000_T;
3486 else
3487 ifmr->ifm_active |= IFM_1000_SX;
3488 if (media & TI_GLNK_FULL_DUPLEX)
3489 ifmr->ifm_active |= IFM_FDX;
3490 else
3491 ifmr->ifm_active |= IFM_HDX;
3492 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) {
3493 media = CSR_READ_4(sc, TI_GCR_LINK_STAT);
3494 if (sc->ti_copper) {
3495 if (media & TI_LNK_100MB)
3496 ifmr->ifm_active |= IFM_100_TX;
3497 if (media & TI_LNK_10MB)
3498 ifmr->ifm_active |= IFM_10_T;
3499 } else {
3500 if (media & TI_LNK_100MB)
3501 ifmr->ifm_active |= IFM_100_FX;
3502 if (media & TI_LNK_10MB)
3503 ifmr->ifm_active |= IFM_10_FL;
3504 }
3505 if (media & TI_LNK_FULL_DUPLEX)
3506 ifmr->ifm_active |= IFM_FDX;
3507 if (media & TI_LNK_HALF_DUPLEX)
3508 ifmr->ifm_active |= IFM_HDX;
3509 }
3510 TI_UNLOCK(sc);
3511 }
3512
3513 static int
3514 ti_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
3515 {
3516 struct ti_softc *sc = ifp->if_softc;
3517 struct ifreq *ifr = (struct ifreq *) data;
3518 struct ti_cmd_desc cmd;
3519 int mask, error = 0;
3520
3521 switch (command) {
3522 case SIOCSIFMTU:
3523 TI_LOCK(sc);
3524 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > TI_JUMBO_MTU)
3525 error = EINVAL;
3526 else {
3527 ifp->if_mtu = ifr->ifr_mtu;
3528 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3529 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
3530 ti_init_locked(sc);
3531 }
3532 }
3533 TI_UNLOCK(sc);
3534 break;
3535 case SIOCSIFFLAGS:
3536 TI_LOCK(sc);
3537 if (ifp->if_flags & IFF_UP) {
3538 /*
3539 * If only the state of the PROMISC flag changed,
3540 * then just use the 'set promisc mode' command
3541 * instead of reinitializing the entire NIC. Doing
3542 * a full re-init means reloading the firmware and
3543 * waiting for it to start up, which may take a
3544 * second or two.
3545 */
3546 if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
3547 ifp->if_flags & IFF_PROMISC &&
3548 !(sc->ti_if_flags & IFF_PROMISC)) {
3549 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
3550 TI_CMD_CODE_PROMISC_ENB, 0);
3551 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
3552 !(ifp->if_flags & IFF_PROMISC) &&
3553 sc->ti_if_flags & IFF_PROMISC) {
3554 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
3555 TI_CMD_CODE_PROMISC_DIS, 0);
3556 } else
3557 ti_init_locked(sc);
3558 } else {
3559 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3560 ti_stop(sc);
3561 }
3562 }
3563 sc->ti_if_flags = ifp->if_flags;
3564 TI_UNLOCK(sc);
3565 break;
3566 case SIOCADDMULTI:
3567 case SIOCDELMULTI:
3568 TI_LOCK(sc);
3569 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3570 ti_setmulti(sc);
3571 TI_UNLOCK(sc);
3572 break;
3573 case SIOCSIFMEDIA:
3574 case SIOCGIFMEDIA:
3575 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
3576 break;
3577 case SIOCSIFCAP:
3578 TI_LOCK(sc);
3579 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3580 if ((mask & IFCAP_TXCSUM) != 0 &&
3581 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) {
3582 ifp->if_capenable ^= IFCAP_TXCSUM;
3583 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0)
3584 ifp->if_hwassist |= TI_CSUM_FEATURES;
3585 else
3586 ifp->if_hwassist &= ~TI_CSUM_FEATURES;
3587 }
3588 if ((mask & IFCAP_RXCSUM) != 0 &&
3589 (ifp->if_capabilities & IFCAP_RXCSUM) != 0)
3590 ifp->if_capenable ^= IFCAP_RXCSUM;
3591 if ((mask & IFCAP_VLAN_HWTAGGING) != 0 &&
3592 (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0)
3593 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
3594 if ((mask & IFCAP_VLAN_HWCSUM) != 0 &&
3595 (ifp->if_capabilities & IFCAP_VLAN_HWCSUM) != 0)
3596 ifp->if_capenable ^= IFCAP_VLAN_HWCSUM;
3597 if ((mask & (IFCAP_TXCSUM | IFCAP_RXCSUM |
3598 IFCAP_VLAN_HWTAGGING)) != 0) {
3599 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3600 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
3601 ti_init_locked(sc);
3602 }
3603 }
3604 TI_UNLOCK(sc);
3605 VLAN_CAPABILITIES(ifp);
3606 break;
3607 default:
3608 error = ether_ioctl(ifp, command, data);
3609 break;
3610 }
3611
3612 return (error);
3613 }
3614
3615 static int
3616 ti_open(struct cdev *dev, int flags, int fmt, struct thread *td)
3617 {
3618 struct ti_softc *sc;
3619
3620 sc = dev->si_drv1;
3621 if (sc == NULL)
3622 return (ENODEV);
3623
3624 TI_LOCK(sc);
3625 sc->ti_flags |= TI_FLAG_DEBUGING;
3626 TI_UNLOCK(sc);
3627
3628 return (0);
3629 }
3630
3631 static int
3632 ti_close(struct cdev *dev, int flag, int fmt, struct thread *td)
3633 {
3634 struct ti_softc *sc;
3635
3636 sc = dev->si_drv1;
3637 if (sc == NULL)
3638 return (ENODEV);
3639
3640 TI_LOCK(sc);
3641 sc->ti_flags &= ~TI_FLAG_DEBUGING;
3642 TI_UNLOCK(sc);
3643
3644 return (0);
3645 }
3646
3647 /*
3648 * This ioctl routine goes along with the Tigon character device.
3649 */
3650 static int
3651 ti_ioctl2(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
3652 struct thread *td)
3653 {
3654 struct ti_softc *sc;
3655 int error;
3656
3657 sc = dev->si_drv1;
3658 if (sc == NULL)
3659 return (ENODEV);
3660
3661 error = 0;
3662
3663 switch (cmd) {
3664 case TIIOCGETSTATS:
3665 {
3666 struct ti_stats *outstats;
3667
3668 outstats = (struct ti_stats *)addr;
3669
3670 TI_LOCK(sc);
3671 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag,
3672 sc->ti_cdata.ti_gib_map, BUS_DMASYNC_POSTREAD);
3673 bcopy(&sc->ti_rdata.ti_info->ti_stats, outstats,
3674 sizeof(struct ti_stats));
3675 TI_UNLOCK(sc);
3676 break;
3677 }
3678 case TIIOCGETPARAMS:
3679 {
3680 struct ti_params *params;
3681
3682 params = (struct ti_params *)addr;
3683
3684 TI_LOCK(sc);
3685 params->ti_stat_ticks = sc->ti_stat_ticks;
3686 params->ti_rx_coal_ticks = sc->ti_rx_coal_ticks;
3687 params->ti_tx_coal_ticks = sc->ti_tx_coal_ticks;
3688 params->ti_rx_max_coal_bds = sc->ti_rx_max_coal_bds;
3689 params->ti_tx_max_coal_bds = sc->ti_tx_max_coal_bds;
3690 params->ti_tx_buf_ratio = sc->ti_tx_buf_ratio;
3691 params->param_mask = TI_PARAM_ALL;
3692 TI_UNLOCK(sc);
3693 break;
3694 }
3695 case TIIOCSETPARAMS:
3696 {
3697 struct ti_params *params;
3698
3699 params = (struct ti_params *)addr;
3700
3701 TI_LOCK(sc);
3702 if (params->param_mask & TI_PARAM_STAT_TICKS) {
3703 sc->ti_stat_ticks = params->ti_stat_ticks;
3704 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
3705 }
3706
3707 if (params->param_mask & TI_PARAM_RX_COAL_TICKS) {
3708 sc->ti_rx_coal_ticks = params->ti_rx_coal_ticks;
3709 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
3710 sc->ti_rx_coal_ticks);
3711 }
3712
3713 if (params->param_mask & TI_PARAM_TX_COAL_TICKS) {
3714 sc->ti_tx_coal_ticks = params->ti_tx_coal_ticks;
3715 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS,
3716 sc->ti_tx_coal_ticks);
3717 }
3718
3719 if (params->param_mask & TI_PARAM_RX_COAL_BDS) {
3720 sc->ti_rx_max_coal_bds = params->ti_rx_max_coal_bds;
3721 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD,
3722 sc->ti_rx_max_coal_bds);
3723 }
3724
3725 if (params->param_mask & TI_PARAM_TX_COAL_BDS) {
3726 sc->ti_tx_max_coal_bds = params->ti_tx_max_coal_bds;
3727 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD,
3728 sc->ti_tx_max_coal_bds);
3729 }
3730
3731 if (params->param_mask & TI_PARAM_TX_BUF_RATIO) {
3732 sc->ti_tx_buf_ratio = params->ti_tx_buf_ratio;
3733 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO,
3734 sc->ti_tx_buf_ratio);
3735 }
3736 TI_UNLOCK(sc);
3737 break;
3738 }
3739 case TIIOCSETTRACE: {
3740 ti_trace_type trace_type;
3741
3742 trace_type = *(ti_trace_type *)addr;
3743
3744 /*
3745 * Set tracing to whatever the user asked for. Setting
3746 * this register to 0 should have the effect of disabling
3747 * tracing.
3748 */
3749 TI_LOCK(sc);
3750 CSR_WRITE_4(sc, TI_GCR_NIC_TRACING, trace_type);
3751 TI_UNLOCK(sc);
3752 break;
3753 }
3754 case TIIOCGETTRACE: {
3755 struct ti_trace_buf *trace_buf;
3756 uint32_t trace_start, cur_trace_ptr, trace_len;
3757
3758 trace_buf = (struct ti_trace_buf *)addr;
3759
3760 TI_LOCK(sc);
3761 trace_start = CSR_READ_4(sc, TI_GCR_NICTRACE_START);
3762 cur_trace_ptr = CSR_READ_4(sc, TI_GCR_NICTRACE_PTR);
3763 trace_len = CSR_READ_4(sc, TI_GCR_NICTRACE_LEN);
3764 #if 0
3765 if_printf(sc->ti_ifp, "trace_start = %#x, cur_trace_ptr = %#x, "
3766 "trace_len = %d\n", trace_start,
3767 cur_trace_ptr, trace_len);
3768 if_printf(sc->ti_ifp, "trace_buf->buf_len = %d\n",
3769 trace_buf->buf_len);
3770 #endif
3771 error = ti_copy_mem(sc, trace_start, min(trace_len,
3772 trace_buf->buf_len), (caddr_t)trace_buf->buf, 1, 1);
3773 if (error == 0) {
3774 trace_buf->fill_len = min(trace_len,
3775 trace_buf->buf_len);
3776 if (cur_trace_ptr < trace_start)
3777 trace_buf->cur_trace_ptr =
3778 trace_start - cur_trace_ptr;
3779 else
3780 trace_buf->cur_trace_ptr =
3781 cur_trace_ptr - trace_start;
3782 } else
3783 trace_buf->fill_len = 0;
3784 TI_UNLOCK(sc);
3785 break;
3786 }
3787
3788 /*
3789 * For debugging, five ioctls are needed:
3790 * ALT_ATTACH
3791 * ALT_READ_TG_REG
3792 * ALT_WRITE_TG_REG
3793 * ALT_READ_TG_MEM
3794 * ALT_WRITE_TG_MEM
3795 */
3796 case ALT_ATTACH:
3797 /*
3798 * From what I can tell, Alteon's Solaris Tigon driver
3799 * only has one character device, so you have to attach
3800 * to the Tigon board you're interested in. This seems
3801 * like a not-so-good way to do things, since unless you
3802 * subsequently specify the unit number of the device
3803 * you're interested in every ioctl, you'll only be
3804 * able to debug one board at a time.
3805 */
3806 break;
3807 case ALT_READ_TG_MEM:
3808 case ALT_WRITE_TG_MEM:
3809 {
3810 struct tg_mem *mem_param;
3811 uint32_t sram_end, scratch_end;
3812
3813 mem_param = (struct tg_mem *)addr;
3814
3815 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3816 sram_end = TI_END_SRAM_I;
3817 scratch_end = TI_END_SCRATCH_I;
3818 } else {
3819 sram_end = TI_END_SRAM_II;
3820 scratch_end = TI_END_SCRATCH_II;
3821 }
3822
3823 /*
3824 * For now, we'll only handle accessing regular SRAM,
3825 * nothing else.
3826 */
3827 TI_LOCK(sc);
3828 if (mem_param->tgAddr >= TI_BEG_SRAM &&
3829 mem_param->tgAddr + mem_param->len <= sram_end) {
3830 /*
3831 * In this instance, we always copy to/from user
3832 * space, so the user space argument is set to 1.
3833 */
3834 error = ti_copy_mem(sc, mem_param->tgAddr,
3835 mem_param->len, mem_param->userAddr, 1,
3836 cmd == ALT_READ_TG_MEM ? 1 : 0);
3837 } else if (mem_param->tgAddr >= TI_BEG_SCRATCH &&
3838 mem_param->tgAddr <= scratch_end) {
3839 error = ti_copy_scratch(sc, mem_param->tgAddr,
3840 mem_param->len, mem_param->userAddr, 1,
3841 cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_A);
3842 } else if (mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG &&
3843 mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG) {
3844 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3845 if_printf(sc->ti_ifp,
3846 "invalid memory range for Tigon I\n");
3847 error = EINVAL;
3848 break;
3849 }
3850 error = ti_copy_scratch(sc, mem_param->tgAddr -
3851 TI_SCRATCH_DEBUG_OFF, mem_param->len,
3852 mem_param->userAddr, 1,
3853 cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_B);
3854 } else {
3855 if_printf(sc->ti_ifp, "memory address %#x len %d is "
3856 "out of supported range\n",
3857 mem_param->tgAddr, mem_param->len);
3858 error = EINVAL;
3859 }
3860 TI_UNLOCK(sc);
3861 break;
3862 }
3863 case ALT_READ_TG_REG:
3864 case ALT_WRITE_TG_REG:
3865 {
3866 struct tg_reg *regs;
3867 uint32_t tmpval;
3868
3869 regs = (struct tg_reg *)addr;
3870
3871 /*
3872 * Make sure the address in question isn't out of range.
3873 */
3874 if (regs->addr > TI_REG_MAX) {
3875 error = EINVAL;
3876 break;
3877 }
3878 TI_LOCK(sc);
3879 if (cmd == ALT_READ_TG_REG) {
3880 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
3881 regs->addr, &tmpval, 1);
3882 regs->data = ntohl(tmpval);
3883 #if 0
3884 if ((regs->addr == TI_CPU_STATE)
3885 || (regs->addr == TI_CPU_CTL_B)) {
3886 if_printf(sc->ti_ifp, "register %#x = %#x\n",
3887 regs->addr, tmpval);
3888 }
3889 #endif
3890 } else {
3891 tmpval = htonl(regs->data);
3892 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
3893 regs->addr, &tmpval, 1);
3894 }
3895 TI_UNLOCK(sc);
3896 break;
3897 }
3898 default:
3899 error = ENOTTY;
3900 break;
3901 }
3902 return (error);
3903 }
3904
3905 static void
3906 ti_watchdog(void *arg)
3907 {
3908 struct ti_softc *sc;
3909 struct ifnet *ifp;
3910
3911 sc = arg;
3912 TI_LOCK_ASSERT(sc);
3913 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc);
3914 if (sc->ti_timer == 0 || --sc->ti_timer > 0)
3915 return;
3916
3917 /*
3918 * When we're debugging, the chip is often stopped for long periods
3919 * of time, and that would normally cause the watchdog timer to fire.
3920 * Since that impedes debugging, we don't want to do that.
3921 */
3922 if (sc->ti_flags & TI_FLAG_DEBUGING)
3923 return;
3924
3925 ifp = sc->ti_ifp;
3926 if_printf(ifp, "watchdog timeout -- resetting\n");
3927 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
3928 ti_init_locked(sc);
3929
3930 ifp->if_oerrors++;
3931 }
3932
3933 /*
3934 * Stop the adapter and free any mbufs allocated to the
3935 * RX and TX lists.
3936 */
3937 static void
3938 ti_stop(struct ti_softc *sc)
3939 {
3940 struct ifnet *ifp;
3941 struct ti_cmd_desc cmd;
3942
3943 TI_LOCK_ASSERT(sc);
3944
3945 ifp = sc->ti_ifp;
3946
3947 /* Disable host interrupts. */
3948 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
3949 /*
3950 * Tell firmware we're shutting down.
3951 */
3952 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0);
3953
3954 /* Halt and reinitialize. */
3955 if (ti_chipinit(sc) == 0) {
3956 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
3957 /* XXX ignore init errors. */
3958 ti_chipinit(sc);
3959 }
3960
3961 /* Free the RX lists. */
3962 ti_free_rx_ring_std(sc);
3963
3964 /* Free jumbo RX list. */
3965 ti_free_rx_ring_jumbo(sc);
3966
3967 /* Free mini RX list. */
3968 ti_free_rx_ring_mini(sc);
3969
3970 /* Free TX buffers. */
3971 ti_free_tx_ring(sc);
3972
3973 sc->ti_ev_prodidx.ti_idx = 0;
3974 sc->ti_return_prodidx.ti_idx = 0;
3975 sc->ti_tx_considx.ti_idx = 0;
3976 sc->ti_tx_saved_considx = TI_TXCONS_UNSET;
3977
3978 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
3979 callout_stop(&sc->ti_watchdog);
3980 }
3981
3982 /*
3983 * Stop all chip I/O so that the kernel's probe routines don't
3984 * get confused by errant DMAs when rebooting.
3985 */
3986 static int
3987 ti_shutdown(device_t dev)
3988 {
3989 struct ti_softc *sc;
3990
3991 sc = device_get_softc(dev);
3992 TI_LOCK(sc);
3993 ti_chipinit(sc);
3994 TI_UNLOCK(sc);
3995
3996 return (0);
3997 }
3998
3999 static void
4000 ti_sysctl_node(struct ti_softc *sc)
4001 {
4002 struct sysctl_ctx_list *ctx;
4003 struct sysctl_oid_list *child;
4004 char tname[32];
4005
4006 ctx = device_get_sysctl_ctx(sc->ti_dev);
4007 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ti_dev));
4008
4009 /* Use DAC */
4010 sc->ti_dac = 1;
4011 snprintf(tname, sizeof(tname), "dev.ti.%d.dac",
4012 device_get_unit(sc->ti_dev));
4013 TUNABLE_INT_FETCH(tname, &sc->ti_dac);
4014
4015 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_coal_ticks", CTLFLAG_RW,
4016 &sc->ti_rx_coal_ticks, 0, "Receive coalcesced ticks");
4017 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_max_coal_bds", CTLFLAG_RW,
4018 &sc->ti_rx_max_coal_bds, 0, "Receive max coalcesced BDs");
4019
4020 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_coal_ticks", CTLFLAG_RW,
4021 &sc->ti_tx_coal_ticks, 0, "Send coalcesced ticks");
4022 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_max_coal_bds", CTLFLAG_RW,
4023 &sc->ti_tx_max_coal_bds, 0, "Send max coalcesced BDs");
4024 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_buf_ratio", CTLFLAG_RW,
4025 &sc->ti_tx_buf_ratio, 0,
4026 "Ratio of NIC memory devoted to TX buffer");
4027
4028 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "stat_ticks", CTLFLAG_RW,
4029 &sc->ti_stat_ticks, 0,
4030 "Number of clock ticks for statistics update interval");
4031
4032 /* Pull in device tunables. */
4033 sc->ti_rx_coal_ticks = 170;
4034 resource_int_value(device_get_name(sc->ti_dev),
4035 device_get_unit(sc->ti_dev), "rx_coal_ticks",
4036 &sc->ti_rx_coal_ticks);
4037 sc->ti_rx_max_coal_bds = 64;
4038 resource_int_value(device_get_name(sc->ti_dev),
4039 device_get_unit(sc->ti_dev), "rx_max_coal_bds",
4040 &sc->ti_rx_max_coal_bds);
4041
4042 sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500;
4043 resource_int_value(device_get_name(sc->ti_dev),
4044 device_get_unit(sc->ti_dev), "tx_coal_ticks",
4045 &sc->ti_tx_coal_ticks);
4046 sc->ti_tx_max_coal_bds = 32;
4047 resource_int_value(device_get_name(sc->ti_dev),
4048 device_get_unit(sc->ti_dev), "tx_max_coal_bds",
4049 &sc->ti_tx_max_coal_bds);
4050 sc->ti_tx_buf_ratio = 21;
4051 resource_int_value(device_get_name(sc->ti_dev),
4052 device_get_unit(sc->ti_dev), "tx_buf_ratio",
4053 &sc->ti_tx_buf_ratio);
4054
4055 sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC;
4056 resource_int_value(device_get_name(sc->ti_dev),
4057 device_get_unit(sc->ti_dev), "stat_ticks",
4058 &sc->ti_stat_ticks);
4059 }
Cache object: 61524f3fe03e2a81f40fae47337bd49c
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