2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
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.
38 * Written by Bill Paul <wpaul@ctr.columbia.edu>
39 * Electrical Engineering Department
40 * Columbia University, New York City
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
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.
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
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.
69 * The following people deserve special thanks:
70 * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board
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.
79 #include <sys/cdefs.h>
80 __FBSDID("$FreeBSD$");
84 #include <sys/param.h>
85 #include <sys/systm.h>
86 #include <sys/sockio.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>
94 #include <sys/sf_buf.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>
106 #include <netinet/in_systm.h>
107 #include <netinet/in.h>
108 #include <netinet/ip.h>
110 #include <machine/bus.h>
111 #include <machine/resource.h>
113 #include <sys/rman.h>
115 /* #define TI_PRIVATE_JUMBOS */
116 #ifndef TI_PRIVATE_JUMBOS
118 #include <vm/vm_page.h>
121 #include <dev/pci/pcireg.h>
122 #include <dev/pci/pcivar.h>
124 #include <sys/tiio.h>
125 #include <dev/ti/if_tireg.h>
126 #include <dev/ti/ti_fw.h>
127 #include <dev/ti/ti_fw2.h>
129 #define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_IP_FRAGS)
131 * We can only turn on header splitting if we're using extended receive
134 #if defined(TI_JUMBO_HDRSPLIT) && defined(TI_PRIVATE_JUMBOS)
135 #error "options TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS are mutually exclusive"
136 #endif /* TI_JUMBO_HDRSPLIT && TI_JUMBO_HDRSPLIT */
145 * Various supported device vendors/types and their names.
148 static const struct ti_type const 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" },
167 static d_open_t ti_open;
168 static d_close_t ti_close;
169 static d_ioctl_t ti_ioctl2;
171 static struct cdevsw ti_cdevsw = {
172 .d_version = D_VERSION,
176 .d_ioctl = ti_ioctl2,
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 *);
186 static void ti_stats_update(struct ti_softc *);
187 static int ti_encap(struct ti_softc *, struct mbuf **);
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 void ti_ifmedia_sts(struct ifnet *, struct ifmediareq *);
202 static u_int32_t ti_eeprom_putbyte(struct ti_softc *, int);
203 static u_int8_t ti_eeprom_getbyte(struct ti_softc *, int, u_int8_t *);
204 static int ti_read_eeprom(struct ti_softc *, caddr_t, int, int);
206 static void ti_add_mcast(struct ti_softc *, struct ether_addr *);
207 static void ti_del_mcast(struct ti_softc *, struct ether_addr *);
208 static void ti_setmulti(struct ti_softc *);
210 static void ti_mem_read(struct ti_softc *, u_int32_t, u_int32_t, void *);
211 static void ti_mem_write(struct ti_softc *, u_int32_t, u_int32_t, void *);
212 static void ti_mem_zero(struct ti_softc *, u_int32_t, u_int32_t);
213 static int ti_copy_mem(struct ti_softc *, u_int32_t, u_int32_t, caddr_t, int, int);
214 static int ti_copy_scratch(struct ti_softc *, u_int32_t, u_int32_t, caddr_t,
216 static int ti_bcopy_swap(const void *, void *, size_t, ti_swap_type);
217 static void ti_loadfw(struct ti_softc *);
218 static void ti_cmd(struct ti_softc *, struct ti_cmd_desc *);
219 static void ti_cmd_ext(struct ti_softc *, struct ti_cmd_desc *, caddr_t, int);
220 static void ti_handle_events(struct ti_softc *);
221 static int ti_alloc_dmamaps(struct ti_softc *);
222 static void ti_free_dmamaps(struct ti_softc *);
223 static int ti_alloc_jumbo_mem(struct ti_softc *);
224 #ifdef TI_PRIVATE_JUMBOS
225 static void *ti_jalloc(struct ti_softc *);
226 static void ti_jfree(void *, void *);
227 #endif /* TI_PRIVATE_JUMBOS */
228 static int ti_newbuf_std(struct ti_softc *, int, struct mbuf *);
229 static int ti_newbuf_mini(struct ti_softc *, int, struct mbuf *);
230 static int ti_newbuf_jumbo(struct ti_softc *, int, struct mbuf *);
231 static int ti_init_rx_ring_std(struct ti_softc *);
232 static void ti_free_rx_ring_std(struct ti_softc *);
233 static int ti_init_rx_ring_jumbo(struct ti_softc *);
234 static void ti_free_rx_ring_jumbo(struct ti_softc *);
235 static int ti_init_rx_ring_mini(struct ti_softc *);
236 static void ti_free_rx_ring_mini(struct ti_softc *);
237 static void ti_free_tx_ring(struct ti_softc *);
238 static int ti_init_tx_ring(struct ti_softc *);
240 static int ti_64bitslot_war(struct ti_softc *);
241 static int ti_chipinit(struct ti_softc *);
242 static int ti_gibinit(struct ti_softc *);
244 #ifdef TI_JUMBO_HDRSPLIT
245 static __inline void ti_hdr_split (struct mbuf *top, int hdr_len,
246 int pkt_len, int idx);
247 #endif /* TI_JUMBO_HDRSPLIT */
249 static device_method_t ti_methods[] = {
250 /* Device interface */
251 DEVMETHOD(device_probe, ti_probe),
252 DEVMETHOD(device_attach, ti_attach),
253 DEVMETHOD(device_detach, ti_detach),
254 DEVMETHOD(device_shutdown, ti_shutdown),
258 static driver_t ti_driver = {
261 sizeof(struct ti_softc)
264 static devclass_t ti_devclass;
266 DRIVER_MODULE(ti, pci, ti_driver, ti_devclass, 0, 0);
267 MODULE_DEPEND(ti, pci, 1, 1, 1);
268 MODULE_DEPEND(ti, ether, 1, 1, 1);
271 * Send an instruction or address to the EEPROM, check for ACK.
273 static u_int32_t ti_eeprom_putbyte(sc, byte)
280 * Make sure we're in TX mode.
282 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
285 * Feed in each bit and stobe the clock.
287 for (i = 0x80; i; i >>= 1) {
289 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
291 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
294 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
296 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
302 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
307 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
308 ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN;
309 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
315 * Read a byte of data stored in the EEPROM at address 'addr.'
316 * We have to send two address bytes since the EEPROM can hold
317 * more than 256 bytes of data.
319 static u_int8_t ti_eeprom_getbyte(sc, addr, dest)
330 * Send write control code to EEPROM.
332 if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) {
333 device_printf(sc->ti_dev,
334 "failed to send write command, status: %x\n",
335 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
340 * Send first byte of address of byte we want to read.
342 if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) {
343 device_printf(sc->ti_dev, "failed to send address, status: %x\n",
344 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
348 * Send second byte address of byte we want to read.
350 if (ti_eeprom_putbyte(sc, addr & 0xFF)) {
351 device_printf(sc->ti_dev, "failed to send address, status: %x\n",
352 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
359 * Send read control code to EEPROM.
361 if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) {
362 device_printf(sc->ti_dev,
363 "failed to send read command, status: %x\n",
364 CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
369 * Start reading bits from EEPROM.
371 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
372 for (i = 0x80; i; i >>= 1) {
373 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
375 if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN)
377 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
384 * No ACK generated for read, so just return byte.
393 * Read a sequence of bytes from the EEPROM.
396 ti_read_eeprom(sc, dest, off, cnt)
405 for (i = 0; i < cnt; i++) {
406 err = ti_eeprom_getbyte(sc, off + i, &byte);
412 return (err ? 1 : 0);
416 * NIC memory read function.
417 * Can be used to copy data from NIC local memory.
420 ti_mem_read(sc, addr, len, buf)
425 int segptr, segsize, cnt;
436 segsize = TI_WINLEN - (segptr % TI_WINLEN);
437 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
438 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
439 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr,
449 * NIC memory write function.
450 * Can be used to copy data into NIC local memory.
453 ti_mem_write(sc, addr, len, buf)
458 int segptr, segsize, cnt;
469 segsize = TI_WINLEN - (segptr % TI_WINLEN);
470 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
471 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
472 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr,
481 * NIC memory read function.
482 * Can be used to clear a section of NIC local memory.
485 ti_mem_zero(sc, addr, len)
489 int segptr, segsize, cnt;
498 segsize = TI_WINLEN - (segptr % TI_WINLEN);
499 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
500 bus_space_set_region_4(sc->ti_btag, sc->ti_bhandle,
501 TI_WINDOW + (segptr & (TI_WINLEN - 1)), 0, segsize / 4);
508 ti_copy_mem(sc, tigon_addr, len, buf, useraddr, readdata)
510 u_int32_t tigon_addr, len;
512 int useraddr, readdata;
514 int segptr, segsize, cnt;
517 u_int8_t tmparray[TI_WINLEN], tmparray2[TI_WINLEN];
524 * At the moment, we don't handle non-aligned cases, we just bail.
525 * If this proves to be a problem, it will be fixed.
528 && (tigon_addr & 0x3)) {
529 device_printf(sc->ti_dev, "%s: tigon address %#x isn't "
530 "word-aligned\n", __func__, tigon_addr);
531 device_printf(sc->ti_dev, "%s: unaligned writes aren't "
532 "yet supported\n", __func__);
536 segptr = tigon_addr & ~0x3;
537 segresid = tigon_addr - segptr;
540 * This is the non-aligned amount left over that we'll need to
545 /* Add in the left over amount at the front of the buffer */
550 * If resid + segresid is >= 4, add multiples of 4 to the count and
551 * decrease the residual by that much.
554 resid -= resid & ~0x3;
561 * Save the old window base value.
563 origwin = CSR_READ_4(sc, TI_WINBASE);
566 bus_size_t ti_offset;
571 segsize = TI_WINLEN - (segptr % TI_WINLEN);
572 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
574 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN -1));
578 bus_space_read_region_4(sc->ti_btag,
579 sc->ti_bhandle, ti_offset,
580 (u_int32_t *)tmparray,
584 * Yeah, this is a little on the kludgy
585 * side, but at least this code is only
586 * used for debugging.
588 ti_bcopy_swap(tmparray, tmparray2, segsize,
593 copyout(&tmparray2[segresid], ptr,
597 copyout(tmparray2, ptr, segsize);
602 ti_bcopy_swap(tmparray, tmparray2,
603 segsize, TI_SWAP_NTOH);
605 bcopy(&tmparray2[segresid], ptr,
610 ti_bcopy_swap(tmparray, ptr, segsize,
617 copyin(ptr, tmparray2, segsize);
619 ti_bcopy_swap(tmparray2, tmparray, segsize,
622 ti_bcopy_swap(ptr, tmparray, segsize,
625 bus_space_write_region_4(sc->ti_btag,
626 sc->ti_bhandle, ti_offset,
627 (u_int32_t *)tmparray,
636 * Handle leftover, non-word-aligned bytes.
639 u_int32_t tmpval, tmpval2;
640 bus_size_t ti_offset;
643 * Set the segment pointer.
645 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
647 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN - 1));
650 * First, grab whatever is in our source/destination.
651 * We'll obviously need this for reads, but also for
652 * writes, since we'll be doing read/modify/write.
654 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
655 ti_offset, &tmpval, 1);
658 * Next, translate this from little-endian to big-endian
659 * (at least on i386 boxes).
661 tmpval2 = ntohl(tmpval);
665 * If we're reading, just copy the leftover number
666 * of bytes from the host byte order buffer to
671 copyout(&tmpval2, ptr, resid);
674 bcopy(&tmpval2, ptr, resid);
677 * If we're writing, first copy the bytes to be
678 * written into the network byte order buffer,
679 * leaving the rest of the buffer with whatever was
680 * originally in there. Then, swap the bytes
681 * around into host order and write them out.
683 * XXX KDM the read side of this has been verified
684 * to work, but the write side of it has not been
685 * verified. So user beware.
689 copyin(ptr, &tmpval2, resid);
692 bcopy(ptr, &tmpval2, resid);
694 tmpval = htonl(tmpval2);
696 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
697 ti_offset, &tmpval, 1);
701 CSR_WRITE_4(sc, TI_WINBASE, origwin);
707 ti_copy_scratch(sc, tigon_addr, len, buf, useraddr, readdata, cpu)
709 u_int32_t tigon_addr, len;
711 int useraddr, readdata;
716 u_int32_t tmpval, tmpval2;
722 * At the moment, we don't handle non-aligned cases, we just bail.
723 * If this proves to be a problem, it will be fixed.
725 if (tigon_addr & 0x3) {
726 device_printf(sc->ti_dev, "%s: tigon address %#x "
727 "isn't word-aligned\n", __func__, tigon_addr);
732 device_printf(sc->ti_dev, "%s: transfer length %d "
733 "isn't word-aligned\n", __func__, len);
742 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_ADDR, cpu), segptr);
745 tmpval2 = CSR_READ_4(sc, CPU_REG(TI_SRAM_DATA, cpu));
747 tmpval = ntohl(tmpval2);
750 * Note: I've used this debugging interface
751 * extensively with Alteon's 12.3.15 firmware,
752 * compiled with GCC 2.7.2.1 and binutils 2.9.1.
754 * When you compile the firmware without
755 * optimization, which is necessary sometimes in
756 * order to properly step through it, you sometimes
757 * read out a bogus value of 0xc0017c instead of
758 * whatever was supposed to be in that scratchpad
759 * location. That value is on the stack somewhere,
760 * but I've never been able to figure out what was
761 * causing the problem.
763 * The address seems to pop up in random places,
764 * often not in the same place on two subsequent
767 * In any case, the underlying data doesn't seem
768 * to be affected, just the value read out.
773 if (tmpval2 == 0xc0017c)
774 device_printf(sc->ti_dev, "found 0xc0017c at "
775 "%#x (tmpval2)\n", segptr);
777 if (tmpval == 0xc0017c)
778 device_printf(sc->ti_dev, "found 0xc0017c at "
779 "%#x (tmpval)\n", segptr);
782 copyout(&tmpval, ptr, 4);
784 bcopy(&tmpval, ptr, 4);
787 copyin(ptr, &tmpval2, 4);
789 bcopy(ptr, &tmpval2, 4);
791 tmpval = htonl(tmpval2);
793 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_DATA, cpu), tmpval);
805 ti_bcopy_swap(src, dst, len, swap_type)
809 ti_swap_type swap_type;
811 const u_int8_t *tmpsrc;
816 printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n",
826 if (swap_type == TI_SWAP_NTOH)
827 *(u_int32_t *)tmpdst =
828 ntohl(*(const u_int32_t *)tmpsrc);
830 *(u_int32_t *)tmpdst =
831 htonl(*(const u_int32_t *)tmpsrc);
842 * Load firmware image into the NIC. Check that the firmware revision
843 * is acceptable and see if we want the firmware for the Tigon 1 or
853 switch (sc->ti_hwrev) {
855 if (tigonFwReleaseMajor != TI_FIRMWARE_MAJOR ||
856 tigonFwReleaseMinor != TI_FIRMWARE_MINOR ||
857 tigonFwReleaseFix != TI_FIRMWARE_FIX) {
858 device_printf(sc->ti_dev, "firmware revision mismatch; "
859 "want %d.%d.%d, got %d.%d.%d\n",
860 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
861 TI_FIRMWARE_FIX, tigonFwReleaseMajor,
862 tigonFwReleaseMinor, tigonFwReleaseFix);
865 ti_mem_write(sc, tigonFwTextAddr, tigonFwTextLen, tigonFwText);
866 ti_mem_write(sc, tigonFwDataAddr, tigonFwDataLen, tigonFwData);
867 ti_mem_write(sc, tigonFwRodataAddr, tigonFwRodataLen,
869 ti_mem_zero(sc, tigonFwBssAddr, tigonFwBssLen);
870 ti_mem_zero(sc, tigonFwSbssAddr, tigonFwSbssLen);
871 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigonFwStartAddr);
873 case TI_HWREV_TIGON_II:
874 if (tigon2FwReleaseMajor != TI_FIRMWARE_MAJOR ||
875 tigon2FwReleaseMinor != TI_FIRMWARE_MINOR ||
876 tigon2FwReleaseFix != TI_FIRMWARE_FIX) {
877 device_printf(sc->ti_dev, "firmware revision mismatch; "
878 "want %d.%d.%d, got %d.%d.%d\n",
879 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
880 TI_FIRMWARE_FIX, tigon2FwReleaseMajor,
881 tigon2FwReleaseMinor, tigon2FwReleaseFix);
884 ti_mem_write(sc, tigon2FwTextAddr, tigon2FwTextLen,
886 ti_mem_write(sc, tigon2FwDataAddr, tigon2FwDataLen,
888 ti_mem_write(sc, tigon2FwRodataAddr, tigon2FwRodataLen,
890 ti_mem_zero(sc, tigon2FwBssAddr, tigon2FwBssLen);
891 ti_mem_zero(sc, tigon2FwSbssAddr, tigon2FwSbssLen);
892 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigon2FwStartAddr);
895 device_printf(sc->ti_dev,
896 "can't load firmware: unknown hardware rev\n");
902 * Send the NIC a command via the command ring.
907 struct ti_cmd_desc *cmd;
911 index = sc->ti_cmd_saved_prodidx;
912 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd));
913 TI_INC(index, TI_CMD_RING_CNT);
914 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
915 sc->ti_cmd_saved_prodidx = index;
919 * Send the NIC an extended command. The 'len' parameter specifies the
920 * number of command slots to include after the initial command.
923 ti_cmd_ext(sc, cmd, arg, len)
925 struct ti_cmd_desc *cmd;
932 index = sc->ti_cmd_saved_prodidx;
933 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd));
934 TI_INC(index, TI_CMD_RING_CNT);
935 for (i = 0; i < len; i++) {
936 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4),
937 *(u_int32_t *)(&arg[i * 4]));
938 TI_INC(index, TI_CMD_RING_CNT);
940 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
941 sc->ti_cmd_saved_prodidx = index;
945 * Handle events that have triggered interrupts.
951 struct ti_event_desc *e;
953 if (sc->ti_rdata->ti_event_ring == NULL)
956 while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) {
957 e = &sc->ti_rdata->ti_event_ring[sc->ti_ev_saved_considx];
958 switch (TI_EVENT_EVENT(e)) {
959 case TI_EV_LINKSTAT_CHANGED:
960 sc->ti_linkstat = TI_EVENT_CODE(e);
961 if (sc->ti_linkstat == TI_EV_CODE_LINK_UP)
962 device_printf(sc->ti_dev, "10/100 link up\n");
963 else if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP)
964 device_printf(sc->ti_dev, "gigabit link up\n");
965 else if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN)
966 device_printf(sc->ti_dev, "link down\n");
969 if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_INVAL_CMD)
970 device_printf(sc->ti_dev, "invalid command\n");
971 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_UNIMP_CMD)
972 device_printf(sc->ti_dev, "unknown command\n");
973 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_BADCFG)
974 device_printf(sc->ti_dev, "bad config data\n");
976 case TI_EV_FIRMWARE_UP:
979 case TI_EV_STATS_UPDATED:
982 case TI_EV_RESET_JUMBO_RING:
983 case TI_EV_MCAST_UPDATED:
987 device_printf(sc->ti_dev, "unknown event: %d\n",
991 /* Advance the consumer index. */
992 TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT);
993 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx);
998 ti_alloc_dmamaps(struct ti_softc *sc)
1002 for (i = 0; i < TI_TX_RING_CNT; i++) {
1003 sc->ti_cdata.ti_txdesc[i].tx_m = NULL;
1004 sc->ti_cdata.ti_txdesc[i].tx_dmamap = 0;
1005 if (bus_dmamap_create(sc->ti_mbuftx_dmat, 0,
1006 &sc->ti_cdata.ti_txdesc[i].tx_dmamap))
1009 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1010 if (bus_dmamap_create(sc->ti_mbufrx_dmat, 0,
1011 &sc->ti_cdata.ti_rx_std_maps[i]))
1015 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1016 if (bus_dmamap_create(sc->ti_jumbo_dmat, 0,
1017 &sc->ti_cdata.ti_rx_jumbo_maps[i]))
1020 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1021 if (bus_dmamap_create(sc->ti_mbufrx_dmat, 0,
1022 &sc->ti_cdata.ti_rx_mini_maps[i]))
1030 ti_free_dmamaps(struct ti_softc *sc)
1034 if (sc->ti_mbuftx_dmat)
1035 for (i = 0; i < TI_TX_RING_CNT; i++)
1036 if (sc->ti_cdata.ti_txdesc[i].tx_dmamap) {
1037 bus_dmamap_destroy(sc->ti_mbuftx_dmat,
1038 sc->ti_cdata.ti_txdesc[i].tx_dmamap);
1039 sc->ti_cdata.ti_txdesc[i].tx_dmamap = 0;
1042 if (sc->ti_mbufrx_dmat)
1043 for (i = 0; i < TI_STD_RX_RING_CNT; i++)
1044 if (sc->ti_cdata.ti_rx_std_maps[i]) {
1045 bus_dmamap_destroy(sc->ti_mbufrx_dmat,
1046 sc->ti_cdata.ti_rx_std_maps[i]);
1047 sc->ti_cdata.ti_rx_std_maps[i] = 0;
1050 if (sc->ti_jumbo_dmat)
1051 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++)
1052 if (sc->ti_cdata.ti_rx_jumbo_maps[i]) {
1053 bus_dmamap_destroy(sc->ti_jumbo_dmat,
1054 sc->ti_cdata.ti_rx_jumbo_maps[i]);
1055 sc->ti_cdata.ti_rx_jumbo_maps[i] = 0;
1057 if (sc->ti_mbufrx_dmat)
1058 for (i = 0; i < TI_MINI_RX_RING_CNT; i++)
1059 if (sc->ti_cdata.ti_rx_mini_maps[i]) {
1060 bus_dmamap_destroy(sc->ti_mbufrx_dmat,
1061 sc->ti_cdata.ti_rx_mini_maps[i]);
1062 sc->ti_cdata.ti_rx_mini_maps[i] = 0;
1066 #ifdef TI_PRIVATE_JUMBOS
1069 * Memory management for the jumbo receive ring is a pain in the
1070 * butt. We need to allocate at least 9018 bytes of space per frame,
1071 * _and_ it has to be contiguous (unless you use the extended
1072 * jumbo descriptor format). Using malloc() all the time won't
1073 * work: malloc() allocates memory in powers of two, which means we
1074 * would end up wasting a considerable amount of space by allocating
1075 * 9K chunks. We don't have a jumbo mbuf cluster pool. Thus, we have
1076 * to do our own memory management.
1078 * The driver needs to allocate a contiguous chunk of memory at boot
1079 * time. We then chop this up ourselves into 9K pieces and use them
1080 * as external mbuf storage.
1082 * One issue here is how much memory to allocate. The jumbo ring has
1083 * 256 slots in it, but at 9K per slot than can consume over 2MB of
1084 * RAM. This is a bit much, especially considering we also need
1085 * RAM for the standard ring and mini ring (on the Tigon 2). To
1086 * save space, we only actually allocate enough memory for 64 slots
1087 * by default, which works out to between 500 and 600K. This can
1088 * be tuned by changing a #define in if_tireg.h.
1092 ti_alloc_jumbo_mem(sc)
1093 struct ti_softc *sc;
1097 struct ti_jpool_entry *entry;
1100 * Grab a big chunk o' storage. Since we are chopping this pool up
1101 * into ~9k chunks, there doesn't appear to be a need to use page
1104 if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
1105 1, 0, /* algnmnt, boundary */
1106 BUS_SPACE_MAXADDR, /* lowaddr */
1107 BUS_SPACE_MAXADDR, /* highaddr */
1108 NULL, NULL, /* filter, filterarg */
1109 TI_JMEM, /* maxsize */
1111 TI_JMEM, /* maxsegsize */
1113 NULL, NULL, /* lockfunc, lockarg */
1114 &sc->ti_jumbo_dmat) != 0) {
1115 device_printf(sc->ti_dev, "Failed to allocate jumbo dmat\n");
1119 if (bus_dmamem_alloc(sc->ti_jumbo_dmat,
1120 (void**)&sc->ti_cdata.ti_jumbo_buf,
1121 BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
1122 &sc->ti_jumbo_dmamap) != 0) {
1123 device_printf(sc->ti_dev, "Failed to allocate jumbo memory\n");
1127 SLIST_INIT(&sc->ti_jfree_listhead);
1128 SLIST_INIT(&sc->ti_jinuse_listhead);
1131 * Now divide it up into 9K pieces and save the addresses
1134 ptr = sc->ti_cdata.ti_jumbo_buf;
1135 for (i = 0; i < TI_JSLOTS; i++) {
1136 sc->ti_cdata.ti_jslots[i] = ptr;
1138 entry = malloc(sizeof(struct ti_jpool_entry),
1139 M_DEVBUF, M_NOWAIT);
1140 if (entry == NULL) {
1141 device_printf(sc->ti_dev, "no memory for jumbo "
1146 SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries);
1153 * Allocate a jumbo buffer.
1155 static void *ti_jalloc(sc)
1156 struct ti_softc *sc;
1158 struct ti_jpool_entry *entry;
1160 entry = SLIST_FIRST(&sc->ti_jfree_listhead);
1162 if (entry == NULL) {
1163 device_printf(sc->ti_dev, "no free jumbo buffers\n");
1167 SLIST_REMOVE_HEAD(&sc->ti_jfree_listhead, jpool_entries);
1168 SLIST_INSERT_HEAD(&sc->ti_jinuse_listhead, entry, jpool_entries);
1169 return (sc->ti_cdata.ti_jslots[entry->slot]);
1173 * Release a jumbo buffer.
1180 struct ti_softc *sc;
1182 struct ti_jpool_entry *entry;
1184 /* Extract the softc struct pointer. */
1185 sc = (struct ti_softc *)args;
1188 panic("ti_jfree: didn't get softc pointer!");
1190 /* calculate the slot this buffer belongs to */
1191 i = ((vm_offset_t)buf
1192 - (vm_offset_t)sc->ti_cdata.ti_jumbo_buf) / TI_JLEN;
1194 if ((i < 0) || (i >= TI_JSLOTS))
1195 panic("ti_jfree: asked to free buffer that we don't manage!");
1197 entry = SLIST_FIRST(&sc->ti_jinuse_listhead);
1199 panic("ti_jfree: buffer not in use!");
1201 SLIST_REMOVE_HEAD(&sc->ti_jinuse_listhead, jpool_entries);
1202 SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries);
1208 ti_alloc_jumbo_mem(sc)
1209 struct ti_softc *sc;
1213 * The VM system will take care of providing aligned pages. Alignment
1214 * is set to 1 here so that busdma resources won't be wasted.
1216 if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
1217 1, 0, /* algnmnt, boundary */
1218 BUS_SPACE_MAXADDR, /* lowaddr */
1219 BUS_SPACE_MAXADDR, /* highaddr */
1220 NULL, NULL, /* filter, filterarg */
1221 PAGE_SIZE * 4 /*XXX*/, /* maxsize */
1223 PAGE_SIZE, /* maxsegsize */
1225 NULL, NULL, /* lockfunc, lockarg */
1226 &sc->ti_jumbo_dmat) != 0) {
1227 device_printf(sc->ti_dev, "Failed to allocate jumbo dmat\n");
1234 #endif /* TI_PRIVATE_JUMBOS */
1237 * Intialize a standard receive ring descriptor.
1240 ti_newbuf_std(sc, i, m)
1241 struct ti_softc *sc;
1246 bus_dma_segment_t segs;
1247 struct mbuf *m_new = NULL;
1248 struct ti_rx_desc *r;
1253 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1257 MCLGET(m_new, M_DONTWAIT);
1258 if (!(m_new->m_flags & M_EXT)) {
1262 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1265 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
1266 m_new->m_data = m_new->m_ext.ext_buf;
1269 m_adj(m_new, ETHER_ALIGN);
1270 sc->ti_cdata.ti_rx_std_chain[i] = m_new;
1271 r = &sc->ti_rdata->ti_rx_std_ring[i];
1272 map = sc->ti_cdata.ti_rx_std_maps[i];
1273 if (bus_dmamap_load_mbuf_sg(sc->ti_mbufrx_dmat, map, m_new, &segs,
1278 ti_hostaddr64(&r->ti_addr, segs.ds_addr);
1279 r->ti_len = segs.ds_len;
1280 r->ti_type = TI_BDTYPE_RECV_BD;
1282 if (sc->ti_ifp->if_hwassist)
1283 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1286 bus_dmamap_sync(sc->ti_mbufrx_dmat, map, BUS_DMASYNC_PREREAD);
1291 * Intialize a mini receive ring descriptor. This only applies to
1295 ti_newbuf_mini(sc, i, m)
1296 struct ti_softc *sc;
1300 bus_dma_segment_t segs;
1302 struct mbuf *m_new = NULL;
1303 struct ti_rx_desc *r;
1308 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1309 if (m_new == NULL) {
1312 m_new->m_len = m_new->m_pkthdr.len = MHLEN;
1315 m_new->m_data = m_new->m_pktdat;
1316 m_new->m_len = m_new->m_pkthdr.len = MHLEN;
1319 m_adj(m_new, ETHER_ALIGN);
1320 r = &sc->ti_rdata->ti_rx_mini_ring[i];
1321 sc->ti_cdata.ti_rx_mini_chain[i] = m_new;
1322 map = sc->ti_cdata.ti_rx_mini_maps[i];
1323 if (bus_dmamap_load_mbuf_sg(sc->ti_mbufrx_dmat, map, m_new, &segs,
1328 ti_hostaddr64(&r->ti_addr, segs.ds_addr);
1329 r->ti_len = segs.ds_len;
1330 r->ti_type = TI_BDTYPE_RECV_BD;
1331 r->ti_flags = TI_BDFLAG_MINI_RING;
1332 if (sc->ti_ifp->if_hwassist)
1333 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1336 bus_dmamap_sync(sc->ti_mbufrx_dmat, map, BUS_DMASYNC_PREREAD);
1340 #ifdef TI_PRIVATE_JUMBOS
1343 * Initialize a jumbo receive ring descriptor. This allocates
1344 * a jumbo buffer from the pool managed internally by the driver.
1347 ti_newbuf_jumbo(sc, i, m)
1348 struct ti_softc *sc;
1353 struct mbuf *m_new = NULL;
1354 struct ti_rx_desc *r;
1356 bus_dma_segment_t segs;
1359 caddr_t *buf = NULL;
1361 /* Allocate the mbuf. */
1362 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1363 if (m_new == NULL) {
1367 /* Allocate the jumbo buffer */
1368 buf = ti_jalloc(sc);
1371 device_printf(sc->ti_dev, "jumbo allocation failed "
1372 "-- packet dropped!\n");
1376 /* Attach the buffer to the mbuf. */
1377 m_new->m_data = (void *) buf;
1378 m_new->m_len = m_new->m_pkthdr.len = TI_JUMBO_FRAMELEN;
1379 MEXTADD(m_new, buf, TI_JUMBO_FRAMELEN, ti_jfree,
1380 (struct ti_softc *)sc, 0, EXT_NET_DRV);
1383 m_new->m_data = m_new->m_ext.ext_buf;
1384 m_new->m_ext.ext_size = TI_JUMBO_FRAMELEN;
1387 m_adj(m_new, ETHER_ALIGN);
1388 /* Set up the descriptor. */
1389 r = &sc->ti_rdata->ti_rx_jumbo_ring[i];
1390 sc->ti_cdata.ti_rx_jumbo_chain[i] = m_new;
1391 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1392 if (bus_dmamap_load_mbuf_sg(sc->ti_jumbo_dmat, map, m_new, &segs,
1397 ti_hostaddr64(&r->ti_addr, segs.ds_addr);
1398 r->ti_len = segs.ds_len;
1399 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
1400 r->ti_flags = TI_BDFLAG_JUMBO_RING;
1401 if (sc->ti_ifp->if_hwassist)
1402 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
1405 bus_dmamap_sync(sc->ti_jumbo_dmat, map, BUS_DMASYNC_PREREAD);
1411 #if (PAGE_SIZE == 4096)
1417 #define TCP_HDR_LEN (52 + sizeof(struct ether_header))
1418 #define UDP_HDR_LEN (28 + sizeof(struct ether_header))
1419 #define NFS_HDR_LEN (UDP_HDR_LEN)
1420 static int HDR_LEN = TCP_HDR_LEN;
1424 * Initialize a jumbo receive ring descriptor. This allocates
1425 * a jumbo buffer from the pool managed internally by the driver.
1428 ti_newbuf_jumbo(sc, idx, m_old)
1429 struct ti_softc *sc;
1434 struct mbuf *cur, *m_new = NULL;
1435 struct mbuf *m[3] = {NULL, NULL, NULL};
1436 struct ti_rx_desc_ext *r;
1439 /* 1 extra buf to make nobufs easy*/
1440 struct sf_buf *sf[3] = {NULL, NULL, NULL};
1442 bus_dma_segment_t segs[4];
1445 if (m_old != NULL) {
1447 cur = m_old->m_next;
1448 for (i = 0; i <= NPAYLOAD; i++){
1453 /* Allocate the mbufs. */
1454 MGETHDR(m_new, M_DONTWAIT, MT_DATA);
1455 if (m_new == NULL) {
1456 device_printf(sc->ti_dev, "mbuf allocation failed "
1457 "-- packet dropped!\n");
1460 MGET(m[NPAYLOAD], M_DONTWAIT, MT_DATA);
1461 if (m[NPAYLOAD] == NULL) {
1462 device_printf(sc->ti_dev, "cluster mbuf allocation "
1463 "failed -- packet dropped!\n");
1466 MCLGET(m[NPAYLOAD], M_DONTWAIT);
1467 if ((m[NPAYLOAD]->m_flags & M_EXT) == 0) {
1468 device_printf(sc->ti_dev, "mbuf allocation failed "
1469 "-- packet dropped!\n");
1472 m[NPAYLOAD]->m_len = MCLBYTES;
1474 for (i = 0; i < NPAYLOAD; i++){
1475 MGET(m[i], M_DONTWAIT, MT_DATA);
1477 device_printf(sc->ti_dev, "mbuf allocation "
1478 "failed -- packet dropped!\n");
1481 frame = vm_page_alloc(NULL, color++,
1482 VM_ALLOC_INTERRUPT | VM_ALLOC_NOOBJ |
1484 if (frame == NULL) {
1485 device_printf(sc->ti_dev, "buffer allocation "
1486 "failed -- packet dropped!\n");
1487 printf(" index %d page %d\n", idx, i);
1490 sf[i] = sf_buf_alloc(frame, SFB_NOWAIT);
1491 if (sf[i] == NULL) {
1492 vm_page_unwire(frame, 0);
1493 vm_page_free(frame);
1494 device_printf(sc->ti_dev, "buffer allocation "
1495 "failed -- packet dropped!\n");
1496 printf(" index %d page %d\n", idx, i);
1500 for (i = 0; i < NPAYLOAD; i++){
1501 /* Attach the buffer to the mbuf. */
1502 m[i]->m_data = (void *)sf_buf_kva(sf[i]);
1503 m[i]->m_len = PAGE_SIZE;
1504 MEXTADD(m[i], sf_buf_kva(sf[i]), PAGE_SIZE,
1505 sf_buf_mext, (void*)sf_buf_kva(sf[i]), sf[i],
1507 m[i]->m_next = m[i+1];
1509 /* link the buffers to the header */
1510 m_new->m_next = m[0];
1511 m_new->m_data += ETHER_ALIGN;
1512 if (sc->ti_hdrsplit)
1513 m_new->m_len = MHLEN - ETHER_ALIGN;
1515 m_new->m_len = HDR_LEN;
1516 m_new->m_pkthdr.len = NPAYLOAD * PAGE_SIZE + m_new->m_len;
1519 /* Set up the descriptor. */
1520 r = &sc->ti_rdata->ti_rx_jumbo_ring[idx];
1521 sc->ti_cdata.ti_rx_jumbo_chain[idx] = m_new;
1522 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1523 if (bus_dmamap_load_mbuf_sg(sc->ti_jumbo_dmat, map, m_new, segs,
1526 if ((nsegs < 1) || (nsegs > 4))
1528 ti_hostaddr64(&r->ti_addr0, segs[0].ds_addr);
1529 r->ti_len0 = m_new->m_len;
1531 ti_hostaddr64(&r->ti_addr1, segs[1].ds_addr);
1532 r->ti_len1 = PAGE_SIZE;
1534 ti_hostaddr64(&r->ti_addr2, segs[2].ds_addr);
1535 r->ti_len2 = m[1]->m_ext.ext_size; /* could be PAGE_SIZE or MCLBYTES */
1537 if (PAGE_SIZE == 4096) {
1538 ti_hostaddr64(&r->ti_addr3, segs[3].ds_addr);
1539 r->ti_len3 = MCLBYTES;
1543 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
1545 r->ti_flags = TI_BDFLAG_JUMBO_RING|TI_RCB_FLAG_USE_EXT_RX_BD;
1547 if (sc->ti_ifp->if_hwassist)
1548 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM|TI_BDFLAG_IP_CKSUM;
1552 bus_dmamap_sync(sc->ti_jumbo_dmat, map, BUS_DMASYNC_PREREAD);
1559 * This can only be called before the mbufs are strung together.
1560 * If the mbufs are strung together, m_freem() will free the chain,
1561 * so that the later mbufs will be freed multiple times.
1566 for (i = 0; i < 3; i++) {
1570 sf_buf_mext((void *)sf_buf_kva(sf[i]), sf[i]);
1579 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster,
1580 * that's 1MB or memory, which is a lot. For now, we fill only the first
1581 * 256 ring entries and hope that our CPU is fast enough to keep up with
1585 ti_init_rx_ring_std(sc)
1586 struct ti_softc *sc;
1589 struct ti_cmd_desc cmd;
1591 for (i = 0; i < TI_SSLOTS; i++) {
1592 if (ti_newbuf_std(sc, i, NULL) == ENOBUFS)
1596 TI_UPDATE_STDPROD(sc, i - 1);
1603 ti_free_rx_ring_std(sc)
1604 struct ti_softc *sc;
1609 for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
1610 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) {
1611 map = sc->ti_cdata.ti_rx_std_maps[i];
1612 bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
1613 BUS_DMASYNC_POSTREAD);
1614 bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
1615 m_freem(sc->ti_cdata.ti_rx_std_chain[i]);
1616 sc->ti_cdata.ti_rx_std_chain[i] = NULL;
1618 bzero((char *)&sc->ti_rdata->ti_rx_std_ring[i],
1619 sizeof(struct ti_rx_desc));
1624 ti_init_rx_ring_jumbo(sc)
1625 struct ti_softc *sc;
1628 struct ti_cmd_desc cmd;
1630 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1631 if (ti_newbuf_jumbo(sc, i, NULL) == ENOBUFS)
1635 TI_UPDATE_JUMBOPROD(sc, i - 1);
1636 sc->ti_jumbo = i - 1;
1642 ti_free_rx_ring_jumbo(sc)
1643 struct ti_softc *sc;
1648 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
1649 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) {
1650 map = sc->ti_cdata.ti_rx_jumbo_maps[i];
1651 bus_dmamap_sync(sc->ti_jumbo_dmat, map,
1652 BUS_DMASYNC_POSTREAD);
1653 bus_dmamap_unload(sc->ti_jumbo_dmat, map);
1654 m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]);
1655 sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL;
1657 bzero((char *)&sc->ti_rdata->ti_rx_jumbo_ring[i],
1658 sizeof(struct ti_rx_desc));
1663 ti_init_rx_ring_mini(sc)
1664 struct ti_softc *sc;
1668 for (i = 0; i < TI_MSLOTS; i++) {
1669 if (ti_newbuf_mini(sc, i, NULL) == ENOBUFS)
1673 TI_UPDATE_MINIPROD(sc, i - 1);
1674 sc->ti_mini = i - 1;
1680 ti_free_rx_ring_mini(sc)
1681 struct ti_softc *sc;
1686 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
1687 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) {
1688 map = sc->ti_cdata.ti_rx_mini_maps[i];
1689 bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
1690 BUS_DMASYNC_POSTREAD);
1691 bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
1692 m_freem(sc->ti_cdata.ti_rx_mini_chain[i]);
1693 sc->ti_cdata.ti_rx_mini_chain[i] = NULL;
1695 bzero((char *)&sc->ti_rdata->ti_rx_mini_ring[i],
1696 sizeof(struct ti_rx_desc));
1702 struct ti_softc *sc;
1704 struct ti_txdesc *txd;
1707 if (sc->ti_rdata->ti_tx_ring == NULL)
1710 for (i = 0; i < TI_TX_RING_CNT; i++) {
1711 txd = &sc->ti_cdata.ti_txdesc[i];
1712 if (txd->tx_m != NULL) {
1713 bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
1714 BUS_DMASYNC_POSTWRITE);
1715 bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
1719 bzero((char *)&sc->ti_rdata->ti_tx_ring[i],
1720 sizeof(struct ti_tx_desc));
1726 struct ti_softc *sc;
1728 struct ti_txdesc *txd;
1731 STAILQ_INIT(&sc->ti_cdata.ti_txfreeq);
1732 STAILQ_INIT(&sc->ti_cdata.ti_txbusyq);
1733 for (i = 0; i < TI_TX_RING_CNT; i++) {
1734 txd = &sc->ti_cdata.ti_txdesc[i];
1735 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
1738 sc->ti_tx_saved_considx = 0;
1739 sc->ti_tx_saved_prodidx = 0;
1740 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0);
1745 * The Tigon 2 firmware has a new way to add/delete multicast addresses,
1746 * but we have to support the old way too so that Tigon 1 cards will
1750 ti_add_mcast(sc, addr)
1751 struct ti_softc *sc;
1752 struct ether_addr *addr;
1754 struct ti_cmd_desc cmd;
1756 u_int32_t ext[2] = {0, 0};
1758 m = (u_int16_t *)&addr->octet[0];
1760 switch (sc->ti_hwrev) {
1761 case TI_HWREV_TIGON:
1762 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
1763 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
1764 TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0);
1766 case TI_HWREV_TIGON_II:
1767 ext[0] = htons(m[0]);
1768 ext[1] = (htons(m[1]) << 16) | htons(m[2]);
1769 TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2);
1772 device_printf(sc->ti_dev, "unknown hwrev\n");
1778 ti_del_mcast(sc, addr)
1779 struct ti_softc *sc;
1780 struct ether_addr *addr;
1782 struct ti_cmd_desc cmd;
1784 u_int32_t ext[2] = {0, 0};
1786 m = (u_int16_t *)&addr->octet[0];
1788 switch (sc->ti_hwrev) {
1789 case TI_HWREV_TIGON:
1790 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
1791 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
1792 TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0);
1794 case TI_HWREV_TIGON_II:
1795 ext[0] = htons(m[0]);
1796 ext[1] = (htons(m[1]) << 16) | htons(m[2]);
1797 TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2);
1800 device_printf(sc->ti_dev, "unknown hwrev\n");
1806 * Configure the Tigon's multicast address filter.
1808 * The actual multicast table management is a bit of a pain, thanks to
1809 * slight brain damage on the part of both Alteon and us. With our
1810 * multicast code, we are only alerted when the multicast address table
1811 * changes and at that point we only have the current list of addresses:
1812 * we only know the current state, not the previous state, so we don't
1813 * actually know what addresses were removed or added. The firmware has
1814 * state, but we can't get our grubby mits on it, and there is no 'delete
1815 * all multicast addresses' command. Hence, we have to maintain our own
1816 * state so we know what addresses have been programmed into the NIC at
1821 struct ti_softc *sc;
1824 struct ifmultiaddr *ifma;
1825 struct ti_cmd_desc cmd;
1826 struct ti_mc_entry *mc;
1833 if (ifp->if_flags & IFF_ALLMULTI) {
1834 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0);
1837 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0);
1840 /* Disable interrupts. */
1841 intrs = CSR_READ_4(sc, TI_MB_HOSTINTR);
1842 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
1844 /* First, zot all the existing filters. */
1845 while (SLIST_FIRST(&sc->ti_mc_listhead) != NULL) {
1846 mc = SLIST_FIRST(&sc->ti_mc_listhead);
1847 ti_del_mcast(sc, &mc->mc_addr);
1848 SLIST_REMOVE_HEAD(&sc->ti_mc_listhead, mc_entries);
1852 /* Now program new ones. */
1853 if_maddr_rlock(ifp);
1854 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1855 if (ifma->ifma_addr->sa_family != AF_LINK)
1857 mc = malloc(sizeof(struct ti_mc_entry), M_DEVBUF, M_NOWAIT);
1859 device_printf(sc->ti_dev,
1860 "no memory for mcast filter entry\n");
1863 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1864 (char *)&mc->mc_addr, ETHER_ADDR_LEN);
1865 SLIST_INSERT_HEAD(&sc->ti_mc_listhead, mc, mc_entries);
1866 ti_add_mcast(sc, &mc->mc_addr);
1868 if_maddr_runlock(ifp);
1870 /* Re-enable interrupts. */
1871 CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs);
1875 * Check to see if the BIOS has configured us for a 64 bit slot when
1876 * we aren't actually in one. If we detect this condition, we can work
1877 * around it on the Tigon 2 by setting a bit in the PCI state register,
1878 * but for the Tigon 1 we must give up and abort the interface attach.
1880 static int ti_64bitslot_war(sc)
1881 struct ti_softc *sc;
1883 if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) {
1884 CSR_WRITE_4(sc, 0x600, 0);
1885 CSR_WRITE_4(sc, 0x604, 0);
1886 CSR_WRITE_4(sc, 0x600, 0x5555AAAA);
1887 if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) {
1888 if (sc->ti_hwrev == TI_HWREV_TIGON)
1891 TI_SETBIT(sc, TI_PCI_STATE,
1892 TI_PCISTATE_32BIT_BUS);
1902 * Do endian, PCI and DMA initialization. Also check the on-board ROM
1903 * self-test results.
1907 struct ti_softc *sc;
1909 u_int32_t cacheline;
1910 u_int32_t pci_writemax = 0;
1913 /* Initialize link to down state. */
1914 sc->ti_linkstat = TI_EV_CODE_LINK_DOWN;
1916 if (sc->ti_ifp->if_capenable & IFCAP_HWCSUM)
1917 sc->ti_ifp->if_hwassist = TI_CSUM_FEATURES;
1919 sc->ti_ifp->if_hwassist = 0;
1921 /* Set endianness before we access any non-PCI registers. */
1922 #if 0 && BYTE_ORDER == BIG_ENDIAN
1923 CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
1924 TI_MHC_BIGENDIAN_INIT | (TI_MHC_BIGENDIAN_INIT << 24));
1926 CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
1927 TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24));
1930 /* Check the ROM failed bit to see if self-tests passed. */
1931 if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) {
1932 device_printf(sc->ti_dev, "board self-diagnostics failed!\n");
1937 TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT);
1939 /* Figure out the hardware revision. */
1940 switch (CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK) {
1941 case TI_REV_TIGON_I:
1942 sc->ti_hwrev = TI_HWREV_TIGON;
1944 case TI_REV_TIGON_II:
1945 sc->ti_hwrev = TI_HWREV_TIGON_II;
1948 device_printf(sc->ti_dev, "unsupported chip revision\n");
1952 /* Do special setup for Tigon 2. */
1953 if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
1954 TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT);
1955 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K);
1956 TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS);
1960 * We don't have firmware source for the Tigon 1, so Tigon 1 boards
1961 * can't do header splitting.
1963 #ifdef TI_JUMBO_HDRSPLIT
1964 if (sc->ti_hwrev != TI_HWREV_TIGON)
1965 sc->ti_hdrsplit = 1;
1967 device_printf(sc->ti_dev,
1968 "can't do header splitting on a Tigon I board\n");
1969 #endif /* TI_JUMBO_HDRSPLIT */
1971 /* Set up the PCI state register. */
1972 CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD|TI_PCI_WRITE_CMD);
1973 if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
1974 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT);
1977 /* Clear the read/write max DMA parameters. */
1978 TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA|
1979 TI_PCISTATE_READ_MAXDMA));
1981 /* Get cache line size. */
1982 cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF;
1985 * If the system has set enabled the PCI memory write
1986 * and invalidate command in the command register, set
1987 * the write max parameter accordingly. This is necessary
1988 * to use MWI with the Tigon 2.
1990 if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCIM_CMD_MWIEN) {
1991 switch (cacheline) {
2000 /* Disable PCI memory write and invalidate. */
2002 device_printf(sc->ti_dev, "cache line size %d"
2003 " not supported; disabling PCI MWI\n",
2005 CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc,
2006 TI_PCI_CMDSTAT) & ~PCIM_CMD_MWIEN);
2011 TI_SETBIT(sc, TI_PCI_STATE, pci_writemax);
2013 /* This sets the min dma param all the way up (0xff). */
2014 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA);
2016 if (sc->ti_hdrsplit)
2017 hdrsplit = TI_OPMODE_JUMBO_HDRSPLIT;
2021 /* Configure DMA variables. */
2022 #if BYTE_ORDER == BIG_ENDIAN
2023 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_BD |
2024 TI_OPMODE_BYTESWAP_DATA | TI_OPMODE_WORDSWAP_BD |
2025 TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB |
2026 TI_OPMODE_DONT_FRAG_JUMBO | hdrsplit);
2027 #else /* BYTE_ORDER */
2028 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_DATA|
2029 TI_OPMODE_WORDSWAP_BD|TI_OPMODE_DONT_FRAG_JUMBO|
2030 TI_OPMODE_WARN_ENB|TI_OPMODE_FATAL_ENB | hdrsplit);
2031 #endif /* BYTE_ORDER */
2034 * Only allow 1 DMA channel to be active at a time.
2035 * I don't think this is a good idea, but without it
2036 * the firmware racks up lots of nicDmaReadRingFull
2037 * errors. This is not compatible with hardware checksums.
2039 if (sc->ti_ifp->if_hwassist == 0)
2040 TI_SETBIT(sc, TI_GCR_OPMODE, TI_OPMODE_1_DMA_ACTIVE);
2042 /* Recommended settings from Tigon manual. */
2043 CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W);
2044 CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W);
2046 if (ti_64bitslot_war(sc)) {
2047 device_printf(sc->ti_dev, "bios thinks we're in a 64 bit slot, "
2056 * Initialize the general information block and firmware, and
2057 * start the CPU(s) running.
2061 struct ti_softc *sc;
2071 rdphys = sc->ti_rdata_phys;
2073 /* Disable interrupts for now. */
2074 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
2077 * Tell the chip where to find the general information block.
2078 * While this struct could go into >4GB memory, we allocate it in a
2079 * single slab with the other descriptors, and those don't seem to
2080 * support being located in a 64-bit region.
2082 CSR_WRITE_4(sc, TI_GCR_GENINFO_HI, 0);
2083 CSR_WRITE_4(sc, TI_GCR_GENINFO_LO, rdphys + TI_RD_OFF(ti_info));
2085 /* Load the firmware into SRAM. */
2088 /* Set up the contents of the general info and ring control blocks. */
2090 /* Set up the event ring and producer pointer. */
2091 rcb = &sc->ti_rdata->ti_info.ti_ev_rcb;
2093 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_event_ring);
2095 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_ev_prodidx_ptr) =
2096 rdphys + TI_RD_OFF(ti_ev_prodidx_r);
2097 sc->ti_ev_prodidx.ti_idx = 0;
2098 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0);
2099 sc->ti_ev_saved_considx = 0;
2101 /* Set up the command ring and producer mailbox. */
2102 rcb = &sc->ti_rdata->ti_info.ti_cmd_rcb;
2104 TI_HOSTADDR(rcb->ti_hostaddr) = TI_GCR_NIC_ADDR(TI_GCR_CMDRING);
2106 rcb->ti_max_len = 0;
2107 for (i = 0; i < TI_CMD_RING_CNT; i++) {
2108 CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0);
2110 CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0);
2111 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0);
2112 sc->ti_cmd_saved_prodidx = 0;
2115 * Assign the address of the stats refresh buffer.
2116 * We re-use the current stats buffer for this to
2119 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_refresh_stats_ptr) =
2120 rdphys + TI_RD_OFF(ti_info.ti_stats);
2122 /* Set up the standard receive ring. */
2123 rcb = &sc->ti_rdata->ti_info.ti_std_rx_rcb;
2124 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_std_ring);
2125 rcb->ti_max_len = TI_FRAMELEN;
2127 if (sc->ti_ifp->if_hwassist)
2128 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2129 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2130 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2132 /* Set up the jumbo receive ring. */
2133 rcb = &sc->ti_rdata->ti_info.ti_jumbo_rx_rcb;
2134 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_jumbo_ring);
2136 #ifdef TI_PRIVATE_JUMBOS
2137 rcb->ti_max_len = TI_JUMBO_FRAMELEN;
2140 rcb->ti_max_len = PAGE_SIZE;
2141 rcb->ti_flags = TI_RCB_FLAG_USE_EXT_RX_BD;
2143 if (sc->ti_ifp->if_hwassist)
2144 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2145 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2146 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2149 * Set up the mini ring. Only activated on the
2150 * Tigon 2 but the slot in the config block is
2151 * still there on the Tigon 1.
2153 rcb = &sc->ti_rdata->ti_info.ti_mini_rx_rcb;
2154 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_mini_ring);
2155 rcb->ti_max_len = MHLEN - ETHER_ALIGN;
2156 if (sc->ti_hwrev == TI_HWREV_TIGON)
2157 rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED;
2160 if (sc->ti_ifp->if_hwassist)
2161 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2162 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2163 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2166 * Set up the receive return ring.
2168 rcb = &sc->ti_rdata->ti_info.ti_return_rcb;
2169 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_return_ring);
2171 rcb->ti_max_len = TI_RETURN_RING_CNT;
2172 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_return_prodidx_ptr) =
2173 rdphys + TI_RD_OFF(ti_return_prodidx_r);
2176 * Set up the tx ring. Note: for the Tigon 2, we have the option
2177 * of putting the transmit ring in the host's address space and
2178 * letting the chip DMA it instead of leaving the ring in the NIC's
2179 * memory and accessing it through the shared memory region. We
2180 * do this for the Tigon 2, but it doesn't work on the Tigon 1,
2181 * so we have to revert to the shared memory scheme if we detect
2184 CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE);
2185 bzero((char *)sc->ti_rdata->ti_tx_ring,
2186 TI_TX_RING_CNT * sizeof(struct ti_tx_desc));
2187 rcb = &sc->ti_rdata->ti_info.ti_tx_rcb;
2188 if (sc->ti_hwrev == TI_HWREV_TIGON)
2191 rcb->ti_flags = TI_RCB_FLAG_HOST_RING;
2192 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
2193 if (sc->ti_ifp->if_hwassist)
2194 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
2195 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
2196 rcb->ti_max_len = TI_TX_RING_CNT;
2197 if (sc->ti_hwrev == TI_HWREV_TIGON)
2198 TI_HOSTADDR(rcb->ti_hostaddr) = TI_TX_RING_BASE;
2200 TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_tx_ring);
2201 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_tx_considx_ptr) =
2202 rdphys + TI_RD_OFF(ti_tx_considx_r);
2204 bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
2205 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
2207 /* Set up tuneables */
2209 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN))
2210 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
2211 (sc->ti_rx_coal_ticks / 10));
2214 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, sc->ti_rx_coal_ticks);
2215 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks);
2216 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
2217 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds);
2218 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds);
2219 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio);
2221 /* Turn interrupts on. */
2222 CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0);
2223 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
2226 TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP));
2232 ti_rdata_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2234 struct ti_softc *sc;
2237 if (error || nseg != 1)
2241 * All of the Tigon data structures need to live at <4GB. This
2242 * cast is fine since busdma was told about this constraint.
2244 sc->ti_rdata_phys = segs[0].ds_addr;
2249 * Probe for a Tigon chip. Check the PCI vendor and device IDs
2250 * against our list and return its name if we find a match.
2256 const struct ti_type *t;
2260 while (t->ti_name != NULL) {
2261 if ((pci_get_vendor(dev) == t->ti_vid) &&
2262 (pci_get_device(dev) == t->ti_did)) {
2263 device_set_desc(dev, t->ti_name);
2264 return (BUS_PROBE_DEFAULT);
2277 struct ti_softc *sc;
2281 sc = device_get_softc(dev);
2282 sc->ti_unit = device_get_unit(dev);
2285 mtx_init(&sc->ti_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
2287 callout_init_mtx(&sc->ti_watchdog, &sc->ti_mtx, 0);
2288 ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts);
2289 ifp = sc->ti_ifp = if_alloc(IFT_ETHER);
2291 device_printf(dev, "can not if_alloc()\n");
2295 sc->ti_ifp->if_capabilities = IFCAP_HWCSUM |
2296 IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2297 sc->ti_ifp->if_capenable = sc->ti_ifp->if_capabilities;
2300 * Map control/status registers.
2302 pci_enable_busmaster(dev);
2305 sc->ti_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
2308 if (sc->ti_res == NULL) {
2309 device_printf(dev, "couldn't map memory\n");
2314 sc->ti_btag = rman_get_bustag(sc->ti_res);
2315 sc->ti_bhandle = rman_get_bushandle(sc->ti_res);
2317 /* Allocate interrupt */
2320 sc->ti_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
2321 RF_SHAREABLE | RF_ACTIVE);
2323 if (sc->ti_irq == NULL) {
2324 device_printf(dev, "couldn't map interrupt\n");
2329 if (ti_chipinit(sc)) {
2330 device_printf(dev, "chip initialization failed\n");
2335 /* Zero out the NIC's on-board SRAM. */
2336 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
2338 /* Init again -- zeroing memory may have clobbered some registers. */
2339 if (ti_chipinit(sc)) {
2340 device_printf(dev, "chip initialization failed\n");
2346 * Get station address from the EEPROM. Note: the manual states
2347 * that the MAC address is at offset 0x8c, however the data is
2348 * stored as two longwords (since that's how it's loaded into
2349 * the NIC). This means the MAC address is actually preceded
2350 * by two zero bytes. We need to skip over those.
2352 if (ti_read_eeprom(sc, eaddr,
2353 TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) {
2354 device_printf(dev, "failed to read station address\n");
2359 /* Allocate the general information block and ring buffers. */
2360 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
2361 1, 0, /* algnmnt, boundary */
2362 BUS_SPACE_MAXADDR, /* lowaddr */
2363 BUS_SPACE_MAXADDR, /* highaddr */
2364 NULL, NULL, /* filter, filterarg */
2365 BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
2367 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
2369 NULL, NULL, /* lockfunc, lockarg */
2370 &sc->ti_parent_dmat) != 0) {
2371 device_printf(dev, "Failed to allocate parent dmat\n");
2376 if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
2377 PAGE_SIZE, 0, /* algnmnt, boundary */
2378 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
2379 BUS_SPACE_MAXADDR, /* highaddr */
2380 NULL, NULL, /* filter, filterarg */
2381 sizeof(struct ti_ring_data), /* maxsize */
2383 sizeof(struct ti_ring_data), /* maxsegsize */
2385 NULL, NULL, /* lockfunc, lockarg */
2386 &sc->ti_rdata_dmat) != 0) {
2387 device_printf(dev, "Failed to allocate rdata dmat\n");
2392 if (bus_dmamem_alloc(sc->ti_rdata_dmat, (void**)&sc->ti_rdata,
2393 BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
2394 &sc->ti_rdata_dmamap) != 0) {
2395 device_printf(dev, "Failed to allocate rdata memory\n");
2400 if (bus_dmamap_load(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
2401 sc->ti_rdata, sizeof(struct ti_ring_data),
2402 ti_rdata_cb, sc, BUS_DMA_NOWAIT) != 0) {
2403 device_printf(dev, "Failed to load rdata segments\n");
2408 bzero(sc->ti_rdata, sizeof(struct ti_ring_data));
2410 /* Try to allocate memory for jumbo buffers. */
2411 if (ti_alloc_jumbo_mem(sc)) {
2412 device_printf(dev, "jumbo buffer allocation failed\n");
2417 if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
2418 1, 0, /* algnmnt, boundary */
2419 BUS_SPACE_MAXADDR, /* lowaddr */
2420 BUS_SPACE_MAXADDR, /* highaddr */
2421 NULL, NULL, /* filter, filterarg */
2422 MCLBYTES * TI_MAXTXSEGS,/* maxsize */
2423 TI_MAXTXSEGS, /* nsegments */
2424 MCLBYTES, /* maxsegsize */
2426 NULL, NULL, /* lockfunc, lockarg */
2427 &sc->ti_mbuftx_dmat) != 0) {
2428 device_printf(dev, "Failed to allocate rdata dmat\n");
2433 if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
2434 1, 0, /* algnmnt, boundary */
2435 BUS_SPACE_MAXADDR, /* lowaddr */
2436 BUS_SPACE_MAXADDR, /* highaddr */
2437 NULL, NULL, /* filter, filterarg */
2438 MCLBYTES, /* maxsize */
2440 MCLBYTES, /* maxsegsize */
2442 NULL, NULL, /* lockfunc, lockarg */
2443 &sc->ti_mbufrx_dmat) != 0) {
2444 device_printf(dev, "Failed to allocate rdata dmat\n");
2449 if (ti_alloc_dmamaps(sc)) {
2450 device_printf(dev, "dma map creation failed\n");
2456 * We really need a better way to tell a 1000baseTX card
2457 * from a 1000baseSX one, since in theory there could be
2458 * OEMed 1000baseTX cards from lame vendors who aren't
2459 * clever enough to change the PCI ID. For the moment
2460 * though, the AceNIC is the only copper card available.
2462 if (pci_get_vendor(dev) == ALT_VENDORID &&
2463 pci_get_device(dev) == ALT_DEVICEID_ACENIC_COPPER)
2465 /* Ok, it's not the only copper card available. */
2466 if (pci_get_vendor(dev) == NG_VENDORID &&
2467 pci_get_device(dev) == NG_DEVICEID_GA620T)
2470 /* Set default tuneable values. */
2471 sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC;
2473 sc->ti_rx_coal_ticks = TI_TICKS_PER_SEC / 5000;
2475 sc->ti_rx_coal_ticks = 170;
2476 sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500;
2477 sc->ti_rx_max_coal_bds = 64;
2479 sc->ti_tx_max_coal_bds = 128;
2481 sc->ti_tx_max_coal_bds = 32;
2482 sc->ti_tx_buf_ratio = 21;
2484 /* Set up ifnet structure */
2486 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2487 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2488 ifp->if_ioctl = ti_ioctl;
2489 ifp->if_start = ti_start;
2490 ifp->if_init = ti_init;
2491 ifp->if_baudrate = 1000000000;
2492 ifp->if_snd.ifq_maxlen = TI_TX_RING_CNT - 1;
2494 /* Set up ifmedia support. */
2495 if (sc->ti_copper) {
2497 * Copper cards allow manual 10/100 mode selection,
2498 * but not manual 1000baseTX mode selection. Why?
2499 * Becuase currently there's no way to specify the
2500 * master/slave setting through the firmware interface,
2501 * so Alteon decided to just bag it and handle it
2502 * via autonegotiation.
2504 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
2505 ifmedia_add(&sc->ifmedia,
2506 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
2507 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
2508 ifmedia_add(&sc->ifmedia,
2509 IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
2510 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T, 0, NULL);
2511 ifmedia_add(&sc->ifmedia,
2512 IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL);
2514 /* Fiber cards don't support 10/100 modes. */
2515 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2516 ifmedia_add(&sc->ifmedia,
2517 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2519 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2520 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
2523 * We're assuming here that card initialization is a sequential
2524 * thing. If it isn't, multiple cards probing at the same time
2525 * could stomp on the list of softcs here.
2528 /* Register the device */
2529 sc->dev = make_dev(&ti_cdevsw, sc->ti_unit, UID_ROOT, GID_OPERATOR,
2530 0600, "ti%d", sc->ti_unit);
2531 sc->dev->si_drv1 = sc;
2534 * Call MI attach routine.
2536 ether_ifattach(ifp, eaddr);
2538 /* Hook interrupt last to avoid having to lock softc */
2539 error = bus_setup_intr(dev, sc->ti_irq, INTR_TYPE_NET|INTR_MPSAFE,
2540 NULL, ti_intr, sc, &sc->ti_intrhand);
2543 device_printf(dev, "couldn't set up irq\n");
2555 * Shutdown hardware and free up resources. This can be called any
2556 * time after the mutex has been initialized. It is called in both
2557 * the error case in attach and the normal detach case so it needs
2558 * to be careful about only freeing resources that have actually been
2565 struct ti_softc *sc;
2568 sc = device_get_softc(dev);
2570 destroy_dev(sc->dev);
2571 KASSERT(mtx_initialized(&sc->ti_mtx), ("ti mutex not initialized"));
2573 if (device_is_attached(dev)) {
2574 ether_ifdetach(ifp);
2580 /* These should only be active if attach succeeded */
2581 callout_drain(&sc->ti_watchdog);
2582 bus_generic_detach(dev);
2583 ti_free_dmamaps(sc);
2584 ifmedia_removeall(&sc->ifmedia);
2586 #ifdef TI_PRIVATE_JUMBOS
2587 if (sc->ti_cdata.ti_jumbo_buf)
2588 bus_dmamem_free(sc->ti_jumbo_dmat, sc->ti_cdata.ti_jumbo_buf,
2589 sc->ti_jumbo_dmamap);
2591 if (sc->ti_jumbo_dmat)
2592 bus_dma_tag_destroy(sc->ti_jumbo_dmat);
2593 if (sc->ti_mbuftx_dmat)
2594 bus_dma_tag_destroy(sc->ti_mbuftx_dmat);
2595 if (sc->ti_mbufrx_dmat)
2596 bus_dma_tag_destroy(sc->ti_mbufrx_dmat);
2598 bus_dmamem_free(sc->ti_rdata_dmat, sc->ti_rdata,
2599 sc->ti_rdata_dmamap);
2600 if (sc->ti_rdata_dmat)
2601 bus_dma_tag_destroy(sc->ti_rdata_dmat);
2602 if (sc->ti_parent_dmat)
2603 bus_dma_tag_destroy(sc->ti_parent_dmat);
2604 if (sc->ti_intrhand)
2605 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand);
2607 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq);
2609 bus_release_resource(dev, SYS_RES_MEMORY, TI_PCI_LOMEM,
2615 mtx_destroy(&sc->ti_mtx);
2620 #ifdef TI_JUMBO_HDRSPLIT
2622 * If hdr_len is 0, that means that header splitting wasn't done on
2623 * this packet for some reason. The two most likely reasons are that
2624 * the protocol isn't a supported protocol for splitting, or this
2625 * packet had a fragment offset that wasn't 0.
2627 * The header length, if it is non-zero, will always be the length of
2628 * the headers on the packet, but that length could be longer than the
2629 * first mbuf. So we take the minimum of the two as the actual
2632 static __inline void
2633 ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len, int idx)
2636 int lengths[4] = {0, 0, 0, 0};
2637 struct mbuf *m, *mp;
2640 top->m_len = min(hdr_len, top->m_len);
2641 pkt_len -= top->m_len;
2642 lengths[i++] = top->m_len;
2645 for (m = top->m_next; m && pkt_len; m = m->m_next) {
2646 m->m_len = m->m_ext.ext_size = min(m->m_len, pkt_len);
2647 pkt_len -= m->m_len;
2648 lengths[i++] = m->m_len;
2654 printf("got split packet: ");
2656 printf("got non-split packet: ");
2658 printf("%d,%d,%d,%d = %d\n", lengths[0],
2659 lengths[1], lengths[2], lengths[3],
2660 lengths[0] + lengths[1] + lengths[2] +
2665 panic("header splitting didn't");
2672 if (mp->m_next != NULL)
2673 panic("ti_hdr_split: last mbuf in chain should be null");
2675 #endif /* TI_JUMBO_HDRSPLIT */
2678 * Frame reception handling. This is called if there's a frame
2679 * on the receive return list.
2681 * Note: we have to be able to handle three possibilities here:
2682 * 1) the frame is from the mini receive ring (can only happen)
2683 * on Tigon 2 boards)
2684 * 2) the frame is from the jumbo recieve ring
2685 * 3) the frame is from the standard receive ring
2690 struct ti_softc *sc;
2694 struct ti_cmd_desc cmd;
2700 while (sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) {
2701 struct ti_rx_desc *cur_rx;
2703 struct mbuf *m = NULL;
2704 u_int16_t vlan_tag = 0;
2708 &sc->ti_rdata->ti_rx_return_ring[sc->ti_rx_saved_considx];
2709 rxidx = cur_rx->ti_idx;
2710 TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT);
2712 if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) {
2714 vlan_tag = cur_rx->ti_vlan_tag & 0xfff;
2717 if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) {
2719 TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT);
2720 m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx];
2721 sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL;
2722 map = sc->ti_cdata.ti_rx_jumbo_maps[rxidx];
2723 bus_dmamap_sync(sc->ti_jumbo_dmat, map,
2724 BUS_DMASYNC_POSTREAD);
2725 bus_dmamap_unload(sc->ti_jumbo_dmat, map);
2726 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2728 ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
2731 if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) {
2733 ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
2736 #ifdef TI_PRIVATE_JUMBOS
2737 m->m_len = cur_rx->ti_len;
2738 #else /* TI_PRIVATE_JUMBOS */
2739 #ifdef TI_JUMBO_HDRSPLIT
2740 if (sc->ti_hdrsplit)
2741 ti_hdr_split(m, TI_HOSTADDR(cur_rx->ti_addr),
2742 cur_rx->ti_len, rxidx);
2744 #endif /* TI_JUMBO_HDRSPLIT */
2745 m_adj(m, cur_rx->ti_len - m->m_pkthdr.len);
2746 #endif /* TI_PRIVATE_JUMBOS */
2747 } else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) {
2748 TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT);
2749 m = sc->ti_cdata.ti_rx_mini_chain[rxidx];
2750 sc->ti_cdata.ti_rx_mini_chain[rxidx] = NULL;
2751 map = sc->ti_cdata.ti_rx_mini_maps[rxidx];
2752 bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
2753 BUS_DMASYNC_POSTREAD);
2754 bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
2755 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2757 ti_newbuf_mini(sc, sc->ti_mini, m);
2760 if (ti_newbuf_mini(sc, sc->ti_mini, NULL) == ENOBUFS) {
2762 ti_newbuf_mini(sc, sc->ti_mini, m);
2765 m->m_len = cur_rx->ti_len;
2767 TI_INC(sc->ti_std, TI_STD_RX_RING_CNT);
2768 m = sc->ti_cdata.ti_rx_std_chain[rxidx];
2769 sc->ti_cdata.ti_rx_std_chain[rxidx] = NULL;
2770 map = sc->ti_cdata.ti_rx_std_maps[rxidx];
2771 bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
2772 BUS_DMASYNC_POSTREAD);
2773 bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
2774 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
2776 ti_newbuf_std(sc, sc->ti_std, m);
2779 if (ti_newbuf_std(sc, sc->ti_std, NULL) == ENOBUFS) {
2781 ti_newbuf_std(sc, sc->ti_std, m);
2784 m->m_len = cur_rx->ti_len;
2787 m->m_pkthdr.len = cur_rx->ti_len;
2789 m->m_pkthdr.rcvif = ifp;
2791 if (ifp->if_hwassist) {
2792 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED |
2794 if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0)
2795 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2796 m->m_pkthdr.csum_data = cur_rx->ti_tcp_udp_cksum;
2800 * If we received a packet with a vlan tag,
2801 * tag it before passing the packet upward.
2804 m->m_pkthdr.ether_vtag = vlan_tag;
2805 m->m_flags |= M_VLANTAG;
2808 (*ifp->if_input)(ifp, m);
2812 /* Only necessary on the Tigon 1. */
2813 if (sc->ti_hwrev == TI_HWREV_TIGON)
2814 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX,
2815 sc->ti_rx_saved_considx);
2817 TI_UPDATE_STDPROD(sc, sc->ti_std);
2818 TI_UPDATE_MINIPROD(sc, sc->ti_mini);
2819 TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo);
2824 struct ti_softc *sc;
2826 struct ti_txdesc *txd;
2827 struct ti_tx_desc txdesc;
2828 struct ti_tx_desc *cur_tx = NULL;
2834 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
2838 * Go through our tx ring and free mbufs for those
2839 * frames that have been sent.
2841 for (idx = sc->ti_tx_saved_considx; idx != sc->ti_tx_considx.ti_idx;
2842 TI_INC(idx, TI_TX_RING_CNT)) {
2843 if (sc->ti_hwrev == TI_HWREV_TIGON) {
2844 ti_mem_read(sc, TI_TX_RING_BASE + idx * sizeof(txdesc),
2845 sizeof(txdesc), &txdesc);
2848 cur_tx = &sc->ti_rdata->ti_tx_ring[idx];
2850 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2851 if ((cur_tx->ti_flags & TI_BDFLAG_END) == 0)
2853 bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
2854 BUS_DMASYNC_POSTWRITE);
2855 bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
2860 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txbusyq, tx_q);
2861 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
2862 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
2864 sc->ti_tx_saved_considx = idx;
2866 sc->ti_timer = sc->ti_txcnt > 0 ? 5 : 0;
2873 struct ti_softc *sc;
2881 /* Avoid this for now -- checking this register is expensive. */
2882 /* Make sure this is really our interrupt. */
2883 if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) {
2889 /* Ack interrupt and stop others from occuring. */
2890 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
2892 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2893 /* Check RX return ring producer/consumer */
2896 /* Check TX ring producer/consumer */
2900 ti_handle_events(sc);
2902 /* Re-enable interrupts. */
2903 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
2905 if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
2906 ifp->if_snd.ifq_head != NULL)
2907 ti_start_locked(ifp);
2914 struct ti_softc *sc;
2920 bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
2921 BUS_DMASYNC_POSTREAD);
2923 ifp->if_collisions +=
2924 (sc->ti_rdata->ti_info.ti_stats.dot3StatsSingleCollisionFrames +
2925 sc->ti_rdata->ti_info.ti_stats.dot3StatsMultipleCollisionFrames +
2926 sc->ti_rdata->ti_info.ti_stats.dot3StatsExcessiveCollisions +
2927 sc->ti_rdata->ti_info.ti_stats.dot3StatsLateCollisions) -
2930 bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
2931 BUS_DMASYNC_PREREAD);
2935 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
2936 * pointers to descriptors.
2939 ti_encap(sc, m_head)
2940 struct ti_softc *sc;
2941 struct mbuf **m_head;
2943 struct ti_txdesc *txd;
2944 struct ti_tx_desc *f;
2945 struct ti_tx_desc txdesc;
2947 bus_dma_segment_t txsegs[TI_MAXTXSEGS];
2948 u_int16_t csum_flags;
2949 int error, frag, i, nseg;
2951 if ((txd = STAILQ_FIRST(&sc->ti_cdata.ti_txfreeq)) == NULL)
2954 error = bus_dmamap_load_mbuf_sg(sc->ti_mbuftx_dmat, txd->tx_dmamap,
2955 *m_head, txsegs, &nseg, 0);
2956 if (error == EFBIG) {
2957 m = m_defrag(*m_head, M_DONTWAIT);
2964 error = bus_dmamap_load_mbuf_sg(sc->ti_mbuftx_dmat,
2965 txd->tx_dmamap, *m_head, txsegs, &nseg, 0);
2971 } else if (error != 0)
2979 if (sc->ti_txcnt + nseg >= TI_TX_RING_CNT) {
2980 bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
2986 if (m->m_pkthdr.csum_flags) {
2987 if (m->m_pkthdr.csum_flags & CSUM_IP)
2988 csum_flags |= TI_BDFLAG_IP_CKSUM;
2989 if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
2990 csum_flags |= TI_BDFLAG_TCP_UDP_CKSUM;
2991 if (m->m_flags & M_LASTFRAG)
2992 csum_flags |= TI_BDFLAG_IP_FRAG_END;
2993 else if (m->m_flags & M_FRAG)
2994 csum_flags |= TI_BDFLAG_IP_FRAG;
2997 bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
2998 BUS_DMASYNC_PREWRITE);
2999 bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
3000 BUS_DMASYNC_PREWRITE);
3002 frag = sc->ti_tx_saved_prodidx;
3003 for (i = 0; i < nseg; i++) {
3004 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3005 bzero(&txdesc, sizeof(txdesc));
3008 f = &sc->ti_rdata->ti_tx_ring[frag];
3009 ti_hostaddr64(&f->ti_addr, txsegs[i].ds_addr);
3010 f->ti_len = txsegs[i].ds_len;
3011 f->ti_flags = csum_flags;
3012 if (m->m_flags & M_VLANTAG) {
3013 f->ti_flags |= TI_BDFLAG_VLAN_TAG;
3014 f->ti_vlan_tag = m->m_pkthdr.ether_vtag & 0xfff;
3019 if (sc->ti_hwrev == TI_HWREV_TIGON)
3020 ti_mem_write(sc, TI_TX_RING_BASE + frag *
3021 sizeof(txdesc), sizeof(txdesc), &txdesc);
3022 TI_INC(frag, TI_TX_RING_CNT);
3025 sc->ti_tx_saved_prodidx = frag;
3026 /* set TI_BDFLAG_END on the last descriptor */
3027 frag = (frag + TI_TX_RING_CNT - 1) % TI_TX_RING_CNT;
3028 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3029 txdesc.ti_flags |= TI_BDFLAG_END;
3030 ti_mem_write(sc, TI_TX_RING_BASE + frag * sizeof(txdesc),
3031 sizeof(txdesc), &txdesc);
3033 sc->ti_rdata->ti_tx_ring[frag].ti_flags |= TI_BDFLAG_END;
3035 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txfreeq, tx_q);
3036 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txbusyq, txd, tx_q);
3038 sc->ti_txcnt += nseg;
3047 struct ti_softc *sc;
3051 ti_start_locked(ifp);
3056 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
3057 * to the mbuf data regions directly in the transmit descriptors.
3060 ti_start_locked(ifp)
3063 struct ti_softc *sc;
3064 struct mbuf *m_head = NULL;
3069 for (; ifp->if_snd.ifq_head != NULL &&
3070 sc->ti_txcnt < (TI_TX_RING_CNT - 16);) {
3071 IF_DEQUEUE(&ifp->if_snd, m_head);
3077 * safety overkill. If this is a fragmented packet chain
3078 * with delayed TCP/UDP checksums, then only encapsulate
3079 * it if we have enough descriptors to handle the entire
3081 * (paranoia -- may not actually be needed)
3083 if (m_head->m_flags & M_FIRSTFRAG &&
3084 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) {
3085 if ((TI_TX_RING_CNT - sc->ti_txcnt) <
3086 m_head->m_pkthdr.csum_data + 16) {
3087 IF_PREPEND(&ifp->if_snd, m_head);
3088 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
3094 * Pack the data into the transmit ring. If we
3095 * don't have room, set the OACTIVE flag and wait
3096 * for the NIC to drain the ring.
3098 if (ti_encap(sc, &m_head)) {
3101 IF_PREPEND(&ifp->if_snd, m_head);
3102 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
3108 * If there's a BPF listener, bounce a copy of this frame
3111 ETHER_BPF_MTAP(ifp, m_head);
3116 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, sc->ti_tx_saved_prodidx);
3119 * Set a timeout in case the chip goes out to lunch.
3129 struct ti_softc *sc;
3141 struct ti_softc *sc = xsc;
3143 /* Cancel pending I/O and flush buffers. */
3146 /* Init the gen info block, ring control blocks and firmware. */
3147 if (ti_gibinit(sc)) {
3148 device_printf(sc->ti_dev, "initialization failure\n");
3153 static void ti_init2(sc)
3154 struct ti_softc *sc;
3156 struct ti_cmd_desc cmd;
3159 struct ifmedia *ifm;
3166 /* Specify MTU and interface index. */
3167 CSR_WRITE_4(sc, TI_GCR_IFINDEX, sc->ti_unit);
3168 CSR_WRITE_4(sc, TI_GCR_IFMTU, ifp->if_mtu +
3169 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN);
3170 TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0);
3172 /* Load our MAC address. */
3173 ea = IF_LLADDR(sc->ti_ifp);
3174 CSR_WRITE_4(sc, TI_GCR_PAR0, (ea[0] << 8) | ea[1]);
3175 CSR_WRITE_4(sc, TI_GCR_PAR1,
3176 (ea[2] << 24) | (ea[3] << 16) | (ea[4] << 8) | ea[5]);
3177 TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0);
3179 /* Enable or disable promiscuous mode as needed. */
3180 if (ifp->if_flags & IFF_PROMISC) {
3181 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0);
3183 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0);
3186 /* Program multicast filter. */
3190 * If this is a Tigon 1, we should tell the
3191 * firmware to use software packet filtering.
3193 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3194 TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0);
3198 ti_init_rx_ring_std(sc);
3200 /* Init jumbo RX ring. */
3201 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN))
3202 ti_init_rx_ring_jumbo(sc);
3205 * If this is a Tigon 2, we can also configure the
3208 if (sc->ti_hwrev == TI_HWREV_TIGON_II)
3209 ti_init_rx_ring_mini(sc);
3211 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0);
3212 sc->ti_rx_saved_considx = 0;
3215 ti_init_tx_ring(sc);
3217 /* Tell firmware we're alive. */
3218 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0);
3220 /* Enable host interrupts. */
3221 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
3223 ifp->if_drv_flags |= IFF_DRV_RUNNING;
3224 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
3225 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc);
3228 * Make sure to set media properly. We have to do this
3229 * here since we have to issue commands in order to set
3230 * the link negotiation and we can't issue commands until
3231 * the firmware is running.
3234 tmp = ifm->ifm_media;
3235 ifm->ifm_media = ifm->ifm_cur->ifm_media;
3236 ti_ifmedia_upd(ifp);
3237 ifm->ifm_media = tmp;
3241 * Set media options.
3247 struct ti_softc *sc;
3248 struct ifmedia *ifm;
3249 struct ti_cmd_desc cmd;
3255 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3260 switch (IFM_SUBTYPE(ifm->ifm_media)) {
3263 * Transmit flow control doesn't work on the Tigon 1.
3265 flowctl = TI_GLNK_RX_FLOWCTL_Y;
3268 * Transmit flow control can also cause problems on the
3269 * Tigon 2, apparantly with both the copper and fiber
3270 * boards. The symptom is that the interface will just
3271 * hang. This was reproduced with Alteon 180 switches.
3274 if (sc->ti_hwrev != TI_HWREV_TIGON)
3275 flowctl |= TI_GLNK_TX_FLOWCTL_Y;
3278 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
3279 TI_GLNK_FULL_DUPLEX| flowctl |
3280 TI_GLNK_AUTONEGENB|TI_GLNK_ENB);
3282 flowctl = TI_LNK_RX_FLOWCTL_Y;
3284 if (sc->ti_hwrev != TI_HWREV_TIGON)
3285 flowctl |= TI_LNK_TX_FLOWCTL_Y;
3288 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB|
3289 TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| flowctl |
3290 TI_LNK_AUTONEGENB|TI_LNK_ENB);
3291 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3292 TI_CMD_CODE_NEGOTIATE_BOTH, 0);
3296 flowctl = TI_GLNK_RX_FLOWCTL_Y;
3298 if (sc->ti_hwrev != TI_HWREV_TIGON)
3299 flowctl |= TI_GLNK_TX_FLOWCTL_Y;
3302 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
3303 flowctl |TI_GLNK_ENB);
3304 CSR_WRITE_4(sc, TI_GCR_LINK, 0);
3305 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3306 TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX);
3308 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3309 TI_CMD_CODE_NEGOTIATE_GIGABIT, 0);
3315 flowctl = TI_LNK_RX_FLOWCTL_Y;
3317 if (sc->ti_hwrev != TI_HWREV_TIGON)
3318 flowctl |= TI_LNK_TX_FLOWCTL_Y;
3321 CSR_WRITE_4(sc, TI_GCR_GLINK, 0);
3322 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF|flowctl);
3323 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX ||
3324 IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
3325 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB);
3327 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB);
3329 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3330 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX);
3332 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX);
3334 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
3335 TI_CMD_CODE_NEGOTIATE_10_100, 0);
3343 * Report current media status.
3346 ti_ifmedia_sts(ifp, ifmr)
3348 struct ifmediareq *ifmr;
3350 struct ti_softc *sc;
3351 u_int32_t media = 0;
3355 ifmr->ifm_status = IFM_AVALID;
3356 ifmr->ifm_active = IFM_ETHER;
3358 if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN)
3361 ifmr->ifm_status |= IFM_ACTIVE;
3363 if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) {
3364 media = CSR_READ_4(sc, TI_GCR_GLINK_STAT);
3366 ifmr->ifm_active |= IFM_1000_T;
3368 ifmr->ifm_active |= IFM_1000_SX;
3369 if (media & TI_GLNK_FULL_DUPLEX)
3370 ifmr->ifm_active |= IFM_FDX;
3372 ifmr->ifm_active |= IFM_HDX;
3373 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) {
3374 media = CSR_READ_4(sc, TI_GCR_LINK_STAT);
3375 if (sc->ti_copper) {
3376 if (media & TI_LNK_100MB)
3377 ifmr->ifm_active |= IFM_100_TX;
3378 if (media & TI_LNK_10MB)
3379 ifmr->ifm_active |= IFM_10_T;
3381 if (media & TI_LNK_100MB)
3382 ifmr->ifm_active |= IFM_100_FX;
3383 if (media & TI_LNK_10MB)
3384 ifmr->ifm_active |= IFM_10_FL;
3386 if (media & TI_LNK_FULL_DUPLEX)
3387 ifmr->ifm_active |= IFM_FDX;
3388 if (media & TI_LNK_HALF_DUPLEX)
3389 ifmr->ifm_active |= IFM_HDX;
3394 ti_ioctl(ifp, command, data)
3399 struct ti_softc *sc = ifp->if_softc;
3400 struct ifreq *ifr = (struct ifreq *) data;
3401 int mask, error = 0;
3402 struct ti_cmd_desc cmd;
3407 if (ifr->ifr_mtu > TI_JUMBO_MTU)
3410 ifp->if_mtu = ifr->ifr_mtu;
3417 if (ifp->if_flags & IFF_UP) {
3419 * If only the state of the PROMISC flag changed,
3420 * then just use the 'set promisc mode' command
3421 * instead of reinitializing the entire NIC. Doing
3422 * a full re-init means reloading the firmware and
3423 * waiting for it to start up, which may take a
3426 if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
3427 ifp->if_flags & IFF_PROMISC &&
3428 !(sc->ti_if_flags & IFF_PROMISC)) {
3429 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
3430 TI_CMD_CODE_PROMISC_ENB, 0);
3431 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
3432 !(ifp->if_flags & IFF_PROMISC) &&
3433 sc->ti_if_flags & IFF_PROMISC) {
3434 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
3435 TI_CMD_CODE_PROMISC_DIS, 0);
3439 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3443 sc->ti_if_flags = ifp->if_flags;
3449 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3455 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
3459 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3460 if (mask & IFCAP_HWCSUM) {
3461 if (IFCAP_HWCSUM & ifp->if_capenable)
3462 ifp->if_capenable &= ~IFCAP_HWCSUM;
3464 ifp->if_capenable |= IFCAP_HWCSUM;
3465 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
3471 error = ether_ioctl(ifp, command, data);
3479 ti_open(struct cdev *dev, int flags, int fmt, struct thread *td)
3481 struct ti_softc *sc;
3488 sc->ti_flags |= TI_FLAG_DEBUGING;
3495 ti_close(struct cdev *dev, int flag, int fmt, struct thread *td)
3497 struct ti_softc *sc;
3504 sc->ti_flags &= ~TI_FLAG_DEBUGING;
3511 * This ioctl routine goes along with the Tigon character device.
3514 ti_ioctl2(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
3518 struct ti_softc *sc;
3529 struct ti_stats *outstats;
3531 outstats = (struct ti_stats *)addr;
3534 bcopy(&sc->ti_rdata->ti_info.ti_stats, outstats,
3535 sizeof(struct ti_stats));
3539 case TIIOCGETPARAMS:
3541 struct ti_params *params;
3543 params = (struct ti_params *)addr;
3546 params->ti_stat_ticks = sc->ti_stat_ticks;
3547 params->ti_rx_coal_ticks = sc->ti_rx_coal_ticks;
3548 params->ti_tx_coal_ticks = sc->ti_tx_coal_ticks;
3549 params->ti_rx_max_coal_bds = sc->ti_rx_max_coal_bds;
3550 params->ti_tx_max_coal_bds = sc->ti_tx_max_coal_bds;
3551 params->ti_tx_buf_ratio = sc->ti_tx_buf_ratio;
3552 params->param_mask = TI_PARAM_ALL;
3559 case TIIOCSETPARAMS:
3561 struct ti_params *params;
3563 params = (struct ti_params *)addr;
3566 if (params->param_mask & TI_PARAM_STAT_TICKS) {
3567 sc->ti_stat_ticks = params->ti_stat_ticks;
3568 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
3571 if (params->param_mask & TI_PARAM_RX_COAL_TICKS) {
3572 sc->ti_rx_coal_ticks = params->ti_rx_coal_ticks;
3573 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
3574 sc->ti_rx_coal_ticks);
3577 if (params->param_mask & TI_PARAM_TX_COAL_TICKS) {
3578 sc->ti_tx_coal_ticks = params->ti_tx_coal_ticks;
3579 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS,
3580 sc->ti_tx_coal_ticks);
3583 if (params->param_mask & TI_PARAM_RX_COAL_BDS) {
3584 sc->ti_rx_max_coal_bds = params->ti_rx_max_coal_bds;
3585 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD,
3586 sc->ti_rx_max_coal_bds);
3589 if (params->param_mask & TI_PARAM_TX_COAL_BDS) {
3590 sc->ti_tx_max_coal_bds = params->ti_tx_max_coal_bds;
3591 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD,
3592 sc->ti_tx_max_coal_bds);
3595 if (params->param_mask & TI_PARAM_TX_BUF_RATIO) {
3596 sc->ti_tx_buf_ratio = params->ti_tx_buf_ratio;
3597 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO,
3598 sc->ti_tx_buf_ratio);
3606 case TIIOCSETTRACE: {
3607 ti_trace_type trace_type;
3609 trace_type = *(ti_trace_type *)addr;
3612 * Set tracing to whatever the user asked for. Setting
3613 * this register to 0 should have the effect of disabling
3616 CSR_WRITE_4(sc, TI_GCR_NIC_TRACING, trace_type);
3622 case TIIOCGETTRACE: {
3623 struct ti_trace_buf *trace_buf;
3624 u_int32_t trace_start, cur_trace_ptr, trace_len;
3626 trace_buf = (struct ti_trace_buf *)addr;
3629 trace_start = CSR_READ_4(sc, TI_GCR_NICTRACE_START);
3630 cur_trace_ptr = CSR_READ_4(sc, TI_GCR_NICTRACE_PTR);
3631 trace_len = CSR_READ_4(sc, TI_GCR_NICTRACE_LEN);
3634 if_printf(sc->ti_ifp, "trace_start = %#x, cur_trace_ptr = %#x, "
3635 "trace_len = %d\n", trace_start,
3636 cur_trace_ptr, trace_len);
3637 if_printf(sc->ti_ifp, "trace_buf->buf_len = %d\n",
3638 trace_buf->buf_len);
3641 error = ti_copy_mem(sc, trace_start, min(trace_len,
3642 trace_buf->buf_len),
3643 (caddr_t)trace_buf->buf, 1, 1);
3646 trace_buf->fill_len = min(trace_len,
3647 trace_buf->buf_len);
3648 if (cur_trace_ptr < trace_start)
3649 trace_buf->cur_trace_ptr =
3650 trace_start - cur_trace_ptr;
3652 trace_buf->cur_trace_ptr =
3653 cur_trace_ptr - trace_start;
3655 trace_buf->fill_len = 0;
3662 * For debugging, five ioctls are needed:
3671 * From what I can tell, Alteon's Solaris Tigon driver
3672 * only has one character device, so you have to attach
3673 * to the Tigon board you're interested in. This seems
3674 * like a not-so-good way to do things, since unless you
3675 * subsequently specify the unit number of the device
3676 * you're interested in every ioctl, you'll only be
3677 * able to debug one board at a time.
3681 case ALT_READ_TG_MEM:
3682 case ALT_WRITE_TG_MEM:
3684 struct tg_mem *mem_param;
3685 u_int32_t sram_end, scratch_end;
3687 mem_param = (struct tg_mem *)addr;
3689 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3690 sram_end = TI_END_SRAM_I;
3691 scratch_end = TI_END_SCRATCH_I;
3693 sram_end = TI_END_SRAM_II;
3694 scratch_end = TI_END_SCRATCH_II;
3698 * For now, we'll only handle accessing regular SRAM,
3702 if ((mem_param->tgAddr >= TI_BEG_SRAM)
3703 && ((mem_param->tgAddr + mem_param->len) <= sram_end)) {
3705 * In this instance, we always copy to/from user
3706 * space, so the user space argument is set to 1.
3708 error = ti_copy_mem(sc, mem_param->tgAddr,
3710 mem_param->userAddr, 1,
3711 (cmd == ALT_READ_TG_MEM) ? 1 : 0);
3712 } else if ((mem_param->tgAddr >= TI_BEG_SCRATCH)
3713 && (mem_param->tgAddr <= scratch_end)) {
3714 error = ti_copy_scratch(sc, mem_param->tgAddr,
3716 mem_param->userAddr, 1,
3717 (cmd == ALT_READ_TG_MEM) ?
3718 1 : 0, TI_PROCESSOR_A);
3719 } else if ((mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG)
3720 && (mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG)) {
3721 if (sc->ti_hwrev == TI_HWREV_TIGON) {
3722 if_printf(sc->ti_ifp,
3723 "invalid memory range for Tigon I\n");
3727 error = ti_copy_scratch(sc, mem_param->tgAddr -
3728 TI_SCRATCH_DEBUG_OFF,
3730 mem_param->userAddr, 1,
3731 (cmd == ALT_READ_TG_MEM) ?
3732 1 : 0, TI_PROCESSOR_B);
3734 if_printf(sc->ti_ifp, "memory address %#x len %d is "
3735 "out of supported range\n",
3736 mem_param->tgAddr, mem_param->len);
3743 case ALT_READ_TG_REG:
3744 case ALT_WRITE_TG_REG:
3746 struct tg_reg *regs;
3749 regs = (struct tg_reg *)addr;
3752 * Make sure the address in question isn't out of range.
3754 if (regs->addr > TI_REG_MAX) {
3759 if (cmd == ALT_READ_TG_REG) {
3760 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
3761 regs->addr, &tmpval, 1);
3762 regs->data = ntohl(tmpval);
3764 if ((regs->addr == TI_CPU_STATE)
3765 || (regs->addr == TI_CPU_CTL_B)) {
3766 if_printf(sc->ti_ifp, "register %#x = %#x\n",
3767 regs->addr, tmpval);
3771 tmpval = htonl(regs->data);
3772 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
3773 regs->addr, &tmpval, 1);
3787 ti_watchdog(void *arg)
3789 struct ti_softc *sc;
3794 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc);
3795 if (sc->ti_timer == 0 || --sc->ti_timer > 0)
3799 * When we're debugging, the chip is often stopped for long periods
3800 * of time, and that would normally cause the watchdog timer to fire.
3801 * Since that impedes debugging, we don't want to do that.
3803 if (sc->ti_flags & TI_FLAG_DEBUGING)
3807 if_printf(ifp, "watchdog timeout -- resetting\n");
3815 * Stop the adapter and free any mbufs allocated to the
3820 struct ti_softc *sc;
3823 struct ti_cmd_desc cmd;
3829 /* Disable host interrupts. */
3830 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
3832 * Tell firmware we're shutting down.
3834 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0);
3836 /* Halt and reinitialize. */
3837 if (ti_chipinit(sc) != 0)
3839 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
3840 if (ti_chipinit(sc) != 0)
3843 /* Free the RX lists. */
3844 ti_free_rx_ring_std(sc);
3846 /* Free jumbo RX list. */
3847 ti_free_rx_ring_jumbo(sc);
3849 /* Free mini RX list. */
3850 ti_free_rx_ring_mini(sc);
3852 /* Free TX buffers. */
3853 ti_free_tx_ring(sc);
3855 sc->ti_ev_prodidx.ti_idx = 0;
3856 sc->ti_return_prodidx.ti_idx = 0;
3857 sc->ti_tx_considx.ti_idx = 0;
3858 sc->ti_tx_saved_considx = TI_TXCONS_UNSET;
3860 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
3861 callout_stop(&sc->ti_watchdog);
3865 * Stop all chip I/O so that the kernel's probe routines don't
3866 * get confused by errant DMAs when rebooting.
3872 struct ti_softc *sc;
3874 sc = device_get_softc(dev);