2 * Copyright (c) 2001 Wind River Systems
3 * Copyright (c) 1997, 1998, 1999, 2001
4 * Bill Paul <wpaul@windriver.com>. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Bill Paul.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
33 * $FreeBSD: src/sys/dev/bge/if_bge.c,v 1.3.2.39 2005/07/03 03:41:18 silby Exp $
37 * Broadcom BCM570x family gigabit ethernet driver for FreeBSD.
39 * Written by Bill Paul <wpaul@windriver.com>
40 * Senior Engineer, Wind River Systems
44 * The Broadcom BCM5700 is based on technology originally developed by
45 * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet
46 * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has
47 * two on-board MIPS R4000 CPUs and can have as much as 16MB of external
48 * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo
49 * frames, highly configurable RX filtering, and 16 RX and TX queues
50 * (which, along with RX filter rules, can be used for QOS applications).
51 * Other features, such as TCP segmentation, may be available as part
52 * of value-added firmware updates. Unlike the Tigon I and Tigon II,
53 * firmware images can be stored in hardware and need not be compiled
56 * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will
57 * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus.
59 * The BCM5701 is a single-chip solution incorporating both the BCM5700
60 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701
61 * does not support external SSRAM.
63 * Broadcom also produces a variation of the BCM5700 under the "Altima"
64 * brand name, which is functionally similar but lacks PCI-X support.
66 * Without external SSRAM, you can only have at most 4 TX rings,
67 * and the use of the mini RX ring is disabled. This seems to imply
68 * that these features are simply not available on the BCM5701. As a
69 * result, this driver does not implement any support for the mini RX
73 #include "opt_ifpoll.h"
75 #include <sys/param.h>
77 #include <sys/endian.h>
78 #include <sys/kernel.h>
80 #include <sys/interrupt.h>
82 #include <sys/malloc.h>
83 #include <sys/queue.h>
85 #include <sys/serialize.h>
86 #include <sys/socket.h>
87 #include <sys/sockio.h>
88 #include <sys/sysctl.h>
90 #include <netinet/ip.h>
91 #include <netinet/tcp.h>
94 #include <net/ethernet.h>
96 #include <net/if_arp.h>
97 #include <net/if_dl.h>
98 #include <net/if_media.h>
99 #include <net/if_poll.h>
100 #include <net/if_types.h>
101 #include <net/ifq_var.h>
102 #include <net/vlan/if_vlan_var.h>
103 #include <net/vlan/if_vlan_ether.h>
105 #include <dev/netif/mii_layer/mii.h>
106 #include <dev/netif/mii_layer/miivar.h>
107 #include <dev/netif/mii_layer/brgphyreg.h>
109 #include <bus/pci/pcidevs.h>
110 #include <bus/pci/pcireg.h>
111 #include <bus/pci/pcivar.h>
113 #include <dev/netif/bge/if_bgereg.h>
114 #include <dev/netif/bge/if_bgevar.h>
116 /* "device miibus" required. See GENERIC if you get errors here. */
117 #include "miibus_if.h"
119 #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP)
121 static const struct bge_type {
126 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C996,
127 "3COM 3C996 Gigabit Ethernet" },
129 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700,
130 "Alteon BCM5700 Gigabit Ethernet" },
131 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5701,
132 "Alteon BCM5701 Gigabit Ethernet" },
134 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000,
135 "Altima AC1000 Gigabit Ethernet" },
136 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1001,
137 "Altima AC1002 Gigabit Ethernet" },
138 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100,
139 "Altima AC9100 Gigabit Ethernet" },
141 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_BCM5701,
142 "Apple BCM5701 Gigabit Ethernet" },
144 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700,
145 "Broadcom BCM5700 Gigabit Ethernet" },
146 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701,
147 "Broadcom BCM5701 Gigabit Ethernet" },
148 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702,
149 "Broadcom BCM5702 Gigabit Ethernet" },
150 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702X,
151 "Broadcom BCM5702X Gigabit Ethernet" },
152 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702_ALT,
153 "Broadcom BCM5702 Gigabit Ethernet" },
154 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703,
155 "Broadcom BCM5703 Gigabit Ethernet" },
156 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703X,
157 "Broadcom BCM5703X Gigabit Ethernet" },
158 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703A3,
159 "Broadcom BCM5703 Gigabit Ethernet" },
160 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704C,
161 "Broadcom BCM5704C Dual Gigabit Ethernet" },
162 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S,
163 "Broadcom BCM5704S Dual Gigabit Ethernet" },
164 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S_ALT,
165 "Broadcom BCM5704S Dual Gigabit Ethernet" },
166 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705,
167 "Broadcom BCM5705 Gigabit Ethernet" },
168 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705F,
169 "Broadcom BCM5705F Gigabit Ethernet" },
170 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705K,
171 "Broadcom BCM5705K Gigabit Ethernet" },
172 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M,
173 "Broadcom BCM5705M Gigabit Ethernet" },
174 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M_ALT,
175 "Broadcom BCM5705M Gigabit Ethernet" },
176 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714,
177 "Broadcom BCM5714C Gigabit Ethernet" },
178 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714S,
179 "Broadcom BCM5714S Gigabit Ethernet" },
180 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715,
181 "Broadcom BCM5715 Gigabit Ethernet" },
182 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715S,
183 "Broadcom BCM5715S Gigabit Ethernet" },
184 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5720,
185 "Broadcom BCM5720 Gigabit Ethernet" },
186 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5721,
187 "Broadcom BCM5721 Gigabit Ethernet" },
188 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5722,
189 "Broadcom BCM5722 Gigabit Ethernet" },
190 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5723,
191 "Broadcom BCM5723 Gigabit Ethernet" },
192 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750,
193 "Broadcom BCM5750 Gigabit Ethernet" },
194 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750M,
195 "Broadcom BCM5750M Gigabit Ethernet" },
196 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751,
197 "Broadcom BCM5751 Gigabit Ethernet" },
198 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751F,
199 "Broadcom BCM5751F Gigabit Ethernet" },
200 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751M,
201 "Broadcom BCM5751M Gigabit Ethernet" },
202 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752,
203 "Broadcom BCM5752 Gigabit Ethernet" },
204 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752M,
205 "Broadcom BCM5752M Gigabit Ethernet" },
206 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753,
207 "Broadcom BCM5753 Gigabit Ethernet" },
208 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753F,
209 "Broadcom BCM5753F Gigabit Ethernet" },
210 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753M,
211 "Broadcom BCM5753M Gigabit Ethernet" },
212 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754,
213 "Broadcom BCM5754 Gigabit Ethernet" },
214 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754M,
215 "Broadcom BCM5754M Gigabit Ethernet" },
216 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755,
217 "Broadcom BCM5755 Gigabit Ethernet" },
218 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755M,
219 "Broadcom BCM5755M Gigabit Ethernet" },
220 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5756,
221 "Broadcom BCM5756 Gigabit Ethernet" },
222 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761,
223 "Broadcom BCM5761 Gigabit Ethernet" },
224 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761E,
225 "Broadcom BCM5761E Gigabit Ethernet" },
226 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761S,
227 "Broadcom BCM5761S Gigabit Ethernet" },
228 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761SE,
229 "Broadcom BCM5761SE Gigabit Ethernet" },
230 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5764,
231 "Broadcom BCM5764 Gigabit Ethernet" },
232 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780,
233 "Broadcom BCM5780 Gigabit Ethernet" },
234 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780S,
235 "Broadcom BCM5780S Gigabit Ethernet" },
236 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5781,
237 "Broadcom BCM5781 Gigabit Ethernet" },
238 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5782,
239 "Broadcom BCM5782 Gigabit Ethernet" },
240 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5784,
241 "Broadcom BCM5784 Gigabit Ethernet" },
242 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785F,
243 "Broadcom BCM5785F Gigabit Ethernet" },
244 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785G,
245 "Broadcom BCM5785G Gigabit Ethernet" },
246 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5786,
247 "Broadcom BCM5786 Gigabit Ethernet" },
248 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787,
249 "Broadcom BCM5787 Gigabit Ethernet" },
250 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787F,
251 "Broadcom BCM5787F Gigabit Ethernet" },
252 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787M,
253 "Broadcom BCM5787M Gigabit Ethernet" },
254 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5788,
255 "Broadcom BCM5788 Gigabit Ethernet" },
256 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5789,
257 "Broadcom BCM5789 Gigabit Ethernet" },
258 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901,
259 "Broadcom BCM5901 Fast Ethernet" },
260 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901A2,
261 "Broadcom BCM5901A2 Fast Ethernet" },
262 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5903M,
263 "Broadcom BCM5903M Fast Ethernet" },
264 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906,
265 "Broadcom BCM5906 Fast Ethernet"},
266 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906M,
267 "Broadcom BCM5906M Fast Ethernet"},
268 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57760,
269 "Broadcom BCM57760 Gigabit Ethernet"},
270 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57780,
271 "Broadcom BCM57780 Gigabit Ethernet"},
272 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57788,
273 "Broadcom BCM57788 Gigabit Ethernet"},
274 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57790,
275 "Broadcom BCM57790 Gigabit Ethernet"},
276 { PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1,
277 "SysKonnect Gigabit Ethernet" },
282 #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO)
283 #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY)
284 #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS)
285 #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY)
286 #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS)
287 #define BGE_IS_5755_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5755_PLUS)
288 #define BGE_IS_5788(sc) ((sc)->bge_flags & BGE_FLAG_5788)
290 #define BGE_IS_CRIPPLED(sc) \
291 (BGE_IS_5788((sc)) || (sc)->bge_asicrev == BGE_ASICREV_BCM5700)
293 typedef int (*bge_eaddr_fcn_t)(struct bge_softc *, uint8_t[]);
295 static int bge_probe(device_t);
296 static int bge_attach(device_t);
297 static int bge_detach(device_t);
298 static void bge_txeof(struct bge_softc *, uint16_t);
299 static void bge_rxeof(struct bge_softc *, uint16_t, int);
301 static void bge_tick(void *);
302 static void bge_stats_update(struct bge_softc *);
303 static void bge_stats_update_regs(struct bge_softc *);
305 bge_defrag_shortdma(struct mbuf *);
306 static int bge_encap(struct bge_softc *, struct mbuf **,
308 static void bge_xmit(struct bge_softc *, uint32_t);
309 static int bge_setup_tso(struct bge_softc *, struct mbuf **,
310 uint16_t *, uint16_t *);
313 static void bge_npoll(struct ifnet *, struct ifpoll_info *);
314 static void bge_npoll_compat(struct ifnet *, void *, int );
316 static void bge_intr_crippled(void *);
317 static void bge_intr_legacy(void *);
318 static void bge_msi(void *);
319 static void bge_msi_oneshot(void *);
320 static void bge_intr(struct bge_softc *);
321 static void bge_enable_intr(struct bge_softc *);
322 static void bge_disable_intr(struct bge_softc *);
323 static void bge_start(struct ifnet *, struct ifaltq_subque *);
324 static int bge_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
325 static void bge_init(void *);
326 static void bge_stop(struct bge_softc *);
327 static void bge_watchdog(struct ifnet *);
328 static void bge_shutdown(device_t);
329 static int bge_suspend(device_t);
330 static int bge_resume(device_t);
331 static int bge_ifmedia_upd(struct ifnet *);
332 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
334 static uint8_t bge_nvram_getbyte(struct bge_softc *, int, uint8_t *);
335 static int bge_read_nvram(struct bge_softc *, caddr_t, int, int);
337 static uint8_t bge_eeprom_getbyte(struct bge_softc *, uint32_t, uint8_t *);
338 static int bge_read_eeprom(struct bge_softc *, caddr_t, uint32_t, size_t);
340 static void bge_setmulti(struct bge_softc *);
341 static void bge_setpromisc(struct bge_softc *);
342 static void bge_enable_msi(struct bge_softc *sc);
344 static int bge_alloc_jumbo_mem(struct bge_softc *);
345 static void bge_free_jumbo_mem(struct bge_softc *);
346 static struct bge_jslot
347 *bge_jalloc(struct bge_softc *);
348 static void bge_jfree(void *);
349 static void bge_jref(void *);
350 static int bge_newbuf_std(struct bge_softc *, int, int);
351 static int bge_newbuf_jumbo(struct bge_softc *, int, int);
352 static void bge_setup_rxdesc_std(struct bge_softc *, int);
353 static void bge_setup_rxdesc_jumbo(struct bge_softc *, int);
354 static int bge_init_rx_ring_std(struct bge_softc *);
355 static void bge_free_rx_ring_std(struct bge_softc *);
356 static int bge_init_rx_ring_jumbo(struct bge_softc *);
357 static void bge_free_rx_ring_jumbo(struct bge_softc *);
358 static void bge_free_tx_ring(struct bge_softc *);
359 static int bge_init_tx_ring(struct bge_softc *);
361 static int bge_chipinit(struct bge_softc *);
362 static int bge_blockinit(struct bge_softc *);
363 static void bge_stop_block(struct bge_softc *, bus_size_t, uint32_t);
365 static uint32_t bge_readmem_ind(struct bge_softc *, uint32_t);
366 static void bge_writemem_ind(struct bge_softc *, uint32_t, uint32_t);
368 static uint32_t bge_readreg_ind(struct bge_softc *, uint32_t);
370 static void bge_writereg_ind(struct bge_softc *, uint32_t, uint32_t);
371 static void bge_writemem_direct(struct bge_softc *, uint32_t, uint32_t);
372 static void bge_writembx(struct bge_softc *, int, int);
374 static int bge_miibus_readreg(device_t, int, int);
375 static int bge_miibus_writereg(device_t, int, int, int);
376 static void bge_miibus_statchg(device_t);
377 static void bge_bcm5700_link_upd(struct bge_softc *, uint32_t);
378 static void bge_tbi_link_upd(struct bge_softc *, uint32_t);
379 static void bge_copper_link_upd(struct bge_softc *, uint32_t);
380 static void bge_autopoll_link_upd(struct bge_softc *, uint32_t);
381 static void bge_link_poll(struct bge_softc *);
383 static void bge_reset(struct bge_softc *);
385 static int bge_dma_alloc(struct bge_softc *);
386 static void bge_dma_free(struct bge_softc *);
387 static int bge_dma_block_alloc(struct bge_softc *, bus_size_t,
388 bus_dma_tag_t *, bus_dmamap_t *,
389 void **, bus_addr_t *);
390 static void bge_dma_block_free(bus_dma_tag_t, bus_dmamap_t, void *);
392 static int bge_get_eaddr_mem(struct bge_softc *, uint8_t[]);
393 static int bge_get_eaddr_nvram(struct bge_softc *, uint8_t[]);
394 static int bge_get_eaddr_eeprom(struct bge_softc *, uint8_t[]);
395 static int bge_get_eaddr(struct bge_softc *, uint8_t[]);
397 static void bge_coal_change(struct bge_softc *);
398 static int bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS);
399 static int bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS);
400 static int bge_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS);
401 static int bge_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS);
402 static int bge_sysctl_rx_coal_ticks_int(SYSCTL_HANDLER_ARGS);
403 static int bge_sysctl_tx_coal_ticks_int(SYSCTL_HANDLER_ARGS);
404 static int bge_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS);
405 static int bge_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS);
406 static int bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *,
410 * Set following tunable to 1 for some IBM blade servers with the DNLK
411 * switch module. Auto negotiation is broken for those configurations.
413 static int bge_fake_autoneg = 0;
414 TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg);
416 static int bge_msi_enable = 1;
417 TUNABLE_INT("hw.bge.msi.enable", &bge_msi_enable);
419 #if !defined(KTR_IF_BGE)
420 #define KTR_IF_BGE KTR_ALL
422 KTR_INFO_MASTER(if_bge);
423 KTR_INFO(KTR_IF_BGE, if_bge, intr, 0, "intr");
424 KTR_INFO(KTR_IF_BGE, if_bge, rx_pkt, 1, "rx_pkt");
425 KTR_INFO(KTR_IF_BGE, if_bge, tx_pkt, 2, "tx_pkt");
426 #define logif(name) KTR_LOG(if_bge_ ## name)
428 static device_method_t bge_methods[] = {
429 /* Device interface */
430 DEVMETHOD(device_probe, bge_probe),
431 DEVMETHOD(device_attach, bge_attach),
432 DEVMETHOD(device_detach, bge_detach),
433 DEVMETHOD(device_shutdown, bge_shutdown),
434 DEVMETHOD(device_suspend, bge_suspend),
435 DEVMETHOD(device_resume, bge_resume),
438 DEVMETHOD(bus_print_child, bus_generic_print_child),
439 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
442 DEVMETHOD(miibus_readreg, bge_miibus_readreg),
443 DEVMETHOD(miibus_writereg, bge_miibus_writereg),
444 DEVMETHOD(miibus_statchg, bge_miibus_statchg),
449 static DEFINE_CLASS_0(bge, bge_driver, bge_methods, sizeof(struct bge_softc));
450 static devclass_t bge_devclass;
452 DECLARE_DUMMY_MODULE(if_bge);
453 DRIVER_MODULE(if_bge, pci, bge_driver, bge_devclass, NULL, NULL);
454 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, NULL, NULL);
457 bge_readmem_ind(struct bge_softc *sc, uint32_t off)
459 device_t dev = sc->bge_dev;
462 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
463 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
466 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
467 val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4);
468 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
473 bge_writemem_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
475 device_t dev = sc->bge_dev;
477 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
478 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
481 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
482 pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4);
483 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
488 bge_readreg_ind(struct bge_softc *sc, uin32_t off)
490 device_t dev = sc->bge_dev;
492 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
493 return(pci_read_config(dev, BGE_PCI_REG_DATA, 4));
498 bge_writereg_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
500 device_t dev = sc->bge_dev;
502 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
503 pci_write_config(dev, BGE_PCI_REG_DATA, val, 4);
507 bge_writemem_direct(struct bge_softc *sc, uint32_t off, uint32_t val)
509 CSR_WRITE_4(sc, off, val);
513 bge_writembx(struct bge_softc *sc, int off, int val)
515 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
516 off += BGE_LPMBX_IRQ0_HI - BGE_MBX_IRQ0_HI;
518 CSR_WRITE_4(sc, off, val);
519 if (sc->bge_mbox_reorder)
524 bge_nvram_getbyte(struct bge_softc *sc, int addr, uint8_t *dest)
526 uint32_t access, byte = 0;
530 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_SET1);
531 for (i = 0; i < 8000; i++) {
532 if (CSR_READ_4(sc, BGE_NVRAM_SWARB) & BGE_NVRAMSWARB_GNT1)
540 access = CSR_READ_4(sc, BGE_NVRAM_ACCESS);
541 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access | BGE_NVRAMACC_ENABLE);
543 CSR_WRITE_4(sc, BGE_NVRAM_ADDR, addr & 0xfffffffc);
544 CSR_WRITE_4(sc, BGE_NVRAM_CMD, BGE_NVRAM_READCMD);
545 for (i = 0; i < BGE_TIMEOUT * 10; i++) {
547 if (CSR_READ_4(sc, BGE_NVRAM_CMD) & BGE_NVRAMCMD_DONE) {
553 if (i == BGE_TIMEOUT * 10) {
554 if_printf(&sc->arpcom.ac_if, "nvram read timed out\n");
559 byte = CSR_READ_4(sc, BGE_NVRAM_RDDATA);
561 *dest = (bswap32(byte) >> ((addr % 4) * 8)) & 0xFF;
563 /* Disable access. */
564 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access);
567 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_CLR1);
568 CSR_READ_4(sc, BGE_NVRAM_SWARB);
574 * Read a sequence of bytes from NVRAM.
577 bge_read_nvram(struct bge_softc *sc, caddr_t dest, int off, int cnt)
582 if (sc->bge_asicrev != BGE_ASICREV_BCM5906)
585 for (i = 0; i < cnt; i++) {
586 err = bge_nvram_getbyte(sc, off + i, &byte);
592 return (err ? 1 : 0);
596 * Read a byte of data stored in the EEPROM at address 'addr.' The
597 * BCM570x supports both the traditional bitbang interface and an
598 * auto access interface for reading the EEPROM. We use the auto
602 bge_eeprom_getbyte(struct bge_softc *sc, uint32_t addr, uint8_t *dest)
608 * Enable use of auto EEPROM access so we can avoid
609 * having to use the bitbang method.
611 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
613 /* Reset the EEPROM, load the clock period. */
614 CSR_WRITE_4(sc, BGE_EE_ADDR,
615 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
618 /* Issue the read EEPROM command. */
619 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr);
621 /* Wait for completion */
622 for(i = 0; i < BGE_TIMEOUT * 10; i++) {
624 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE)
628 if (i == BGE_TIMEOUT) {
629 if_printf(&sc->arpcom.ac_if, "eeprom read timed out\n");
634 byte = CSR_READ_4(sc, BGE_EE_DATA);
636 *dest = (byte >> ((addr % 4) * 8)) & 0xFF;
642 * Read a sequence of bytes from the EEPROM.
645 bge_read_eeprom(struct bge_softc *sc, caddr_t dest, uint32_t off, size_t len)
651 for (byte = 0, err = 0, i = 0; i < len; i++) {
652 err = bge_eeprom_getbyte(sc, off + i, &byte);
662 bge_miibus_readreg(device_t dev, int phy, int reg)
664 struct bge_softc *sc = device_get_softc(dev);
668 KASSERT(phy == sc->bge_phyno,
669 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
671 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
672 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
673 CSR_WRITE_4(sc, BGE_MI_MODE,
674 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL);
678 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ | BGE_MICOMM_BUSY |
679 BGE_MIPHY(phy) | BGE_MIREG(reg));
681 /* Poll for the PHY register access to complete. */
682 for (i = 0; i < BGE_TIMEOUT; i++) {
684 val = CSR_READ_4(sc, BGE_MI_COMM);
685 if ((val & BGE_MICOMM_BUSY) == 0) {
687 val = CSR_READ_4(sc, BGE_MI_COMM);
691 if (i == BGE_TIMEOUT) {
692 if_printf(&sc->arpcom.ac_if, "PHY read timed out "
693 "(phy %d, reg %d, val 0x%08x)\n", phy, reg, val);
697 /* Restore the autopoll bit if necessary. */
698 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
699 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
703 if (val & BGE_MICOMM_READFAIL)
706 return (val & 0xFFFF);
710 bge_miibus_writereg(device_t dev, int phy, int reg, int val)
712 struct bge_softc *sc = device_get_softc(dev);
715 KASSERT(phy == sc->bge_phyno,
716 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
718 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
719 (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL))
722 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
723 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
724 CSR_WRITE_4(sc, BGE_MI_MODE,
725 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL);
729 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE | BGE_MICOMM_BUSY |
730 BGE_MIPHY(phy) | BGE_MIREG(reg) | val);
732 for (i = 0; i < BGE_TIMEOUT; i++) {
734 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) {
736 CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */
740 if (i == BGE_TIMEOUT) {
741 if_printf(&sc->arpcom.ac_if, "PHY write timed out "
742 "(phy %d, reg %d, val %d)\n", phy, reg, val);
745 /* Restore the autopoll bit if necessary. */
746 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
747 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
755 bge_miibus_statchg(device_t dev)
757 struct bge_softc *sc;
758 struct mii_data *mii;
760 sc = device_get_softc(dev);
761 mii = device_get_softc(sc->bge_miibus);
763 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
764 (IFM_ACTIVE | IFM_AVALID)) {
765 switch (IFM_SUBTYPE(mii->mii_media_active)) {
773 if (sc->bge_asicrev != BGE_ASICREV_BCM5906)
785 if (sc->bge_link == 0)
788 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
789 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T ||
790 IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) {
791 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
793 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
796 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
797 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
799 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
804 * Memory management for jumbo frames.
807 bge_alloc_jumbo_mem(struct bge_softc *sc)
809 struct ifnet *ifp = &sc->arpcom.ac_if;
810 struct bge_jslot *entry;
816 * Create tag for jumbo mbufs.
817 * This is really a bit of a kludge. We allocate a special
818 * jumbo buffer pool which (thanks to the way our DMA
819 * memory allocation works) will consist of contiguous
820 * pages. This means that even though a jumbo buffer might
821 * be larger than a page size, we don't really need to
822 * map it into more than one DMA segment. However, the
823 * default mbuf tag will result in multi-segment mappings,
824 * so we have to create a special jumbo mbuf tag that
825 * lets us get away with mapping the jumbo buffers as
826 * a single segment. I think eventually the driver should
827 * be changed so that it uses ordinary mbufs and cluster
828 * buffers, i.e. jumbo frames can span multiple DMA
829 * descriptors. But that's a project for another day.
833 * Create DMA stuffs for jumbo RX ring.
835 error = bge_dma_block_alloc(sc, BGE_JUMBO_RX_RING_SZ,
836 &sc->bge_cdata.bge_rx_jumbo_ring_tag,
837 &sc->bge_cdata.bge_rx_jumbo_ring_map,
838 (void *)&sc->bge_ldata.bge_rx_jumbo_ring,
839 &sc->bge_ldata.bge_rx_jumbo_ring_paddr);
841 if_printf(ifp, "could not create jumbo RX ring\n");
846 * Create DMA stuffs for jumbo buffer block.
848 error = bge_dma_block_alloc(sc, BGE_JMEM,
849 &sc->bge_cdata.bge_jumbo_tag,
850 &sc->bge_cdata.bge_jumbo_map,
851 (void **)&sc->bge_ldata.bge_jumbo_buf,
854 if_printf(ifp, "could not create jumbo buffer\n");
858 SLIST_INIT(&sc->bge_jfree_listhead);
861 * Now divide it up into 9K pieces and save the addresses
862 * in an array. Note that we play an evil trick here by using
863 * the first few bytes in the buffer to hold the the address
864 * of the softc structure for this interface. This is because
865 * bge_jfree() needs it, but it is called by the mbuf management
866 * code which will not pass it to us explicitly.
868 for (i = 0, ptr = sc->bge_ldata.bge_jumbo_buf; i < BGE_JSLOTS; i++) {
869 entry = &sc->bge_cdata.bge_jslots[i];
871 entry->bge_buf = ptr;
872 entry->bge_paddr = paddr;
873 entry->bge_inuse = 0;
875 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jslot_link);
884 bge_free_jumbo_mem(struct bge_softc *sc)
886 /* Destroy jumbo RX ring. */
887 bge_dma_block_free(sc->bge_cdata.bge_rx_jumbo_ring_tag,
888 sc->bge_cdata.bge_rx_jumbo_ring_map,
889 sc->bge_ldata.bge_rx_jumbo_ring);
891 /* Destroy jumbo buffer block. */
892 bge_dma_block_free(sc->bge_cdata.bge_jumbo_tag,
893 sc->bge_cdata.bge_jumbo_map,
894 sc->bge_ldata.bge_jumbo_buf);
898 * Allocate a jumbo buffer.
900 static struct bge_jslot *
901 bge_jalloc(struct bge_softc *sc)
903 struct bge_jslot *entry;
905 lwkt_serialize_enter(&sc->bge_jslot_serializer);
906 entry = SLIST_FIRST(&sc->bge_jfree_listhead);
908 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jslot_link);
909 entry->bge_inuse = 1;
911 if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n");
913 lwkt_serialize_exit(&sc->bge_jslot_serializer);
918 * Adjust usage count on a jumbo buffer.
923 struct bge_jslot *entry = (struct bge_jslot *)arg;
924 struct bge_softc *sc = entry->bge_sc;
927 panic("bge_jref: can't find softc pointer!");
929 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
930 panic("bge_jref: asked to reference buffer "
931 "that we don't manage!");
932 } else if (entry->bge_inuse == 0) {
933 panic("bge_jref: buffer already free!");
935 atomic_add_int(&entry->bge_inuse, 1);
940 * Release a jumbo buffer.
945 struct bge_jslot *entry = (struct bge_jslot *)arg;
946 struct bge_softc *sc = entry->bge_sc;
949 panic("bge_jfree: can't find softc pointer!");
951 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
952 panic("bge_jfree: asked to free buffer that we don't manage!");
953 } else if (entry->bge_inuse == 0) {
954 panic("bge_jfree: buffer already free!");
957 * Possible MP race to 0, use the serializer. The atomic insn
958 * is still needed for races against bge_jref().
960 lwkt_serialize_enter(&sc->bge_jslot_serializer);
961 atomic_subtract_int(&entry->bge_inuse, 1);
962 if (entry->bge_inuse == 0) {
963 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead,
966 lwkt_serialize_exit(&sc->bge_jslot_serializer);
972 * Intialize a standard receive ring descriptor.
975 bge_newbuf_std(struct bge_softc *sc, int i, int init)
977 struct mbuf *m_new = NULL;
978 bus_dma_segment_t seg;
982 m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
985 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
987 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0)
988 m_adj(m_new, ETHER_ALIGN);
990 error = bus_dmamap_load_mbuf_segment(sc->bge_cdata.bge_rx_mtag,
991 sc->bge_cdata.bge_rx_tmpmap, m_new,
992 &seg, 1, &nsegs, BUS_DMA_NOWAIT);
999 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag,
1000 sc->bge_cdata.bge_rx_std_dmamap[i],
1001 BUS_DMASYNC_POSTREAD);
1002 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
1003 sc->bge_cdata.bge_rx_std_dmamap[i]);
1006 map = sc->bge_cdata.bge_rx_tmpmap;
1007 sc->bge_cdata.bge_rx_tmpmap = sc->bge_cdata.bge_rx_std_dmamap[i];
1008 sc->bge_cdata.bge_rx_std_dmamap[i] = map;
1010 sc->bge_cdata.bge_rx_std_chain[i].bge_mbuf = m_new;
1011 sc->bge_cdata.bge_rx_std_chain[i].bge_paddr = seg.ds_addr;
1013 bge_setup_rxdesc_std(sc, i);
1018 bge_setup_rxdesc_std(struct bge_softc *sc, int i)
1020 struct bge_rxchain *rc;
1021 struct bge_rx_bd *r;
1023 rc = &sc->bge_cdata.bge_rx_std_chain[i];
1024 r = &sc->bge_ldata.bge_rx_std_ring[i];
1026 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1027 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1028 r->bge_len = rc->bge_mbuf->m_len;
1030 r->bge_flags = BGE_RXBDFLAG_END;
1034 * Initialize a jumbo receive ring descriptor. This allocates
1035 * a jumbo buffer from the pool managed internally by the driver.
1038 bge_newbuf_jumbo(struct bge_softc *sc, int i, int init)
1040 struct mbuf *m_new = NULL;
1041 struct bge_jslot *buf;
1044 /* Allocate the mbuf. */
1045 MGETHDR(m_new, init ? MB_WAIT : MB_DONTWAIT, MT_DATA);
1049 /* Allocate the jumbo buffer */
1050 buf = bge_jalloc(sc);
1056 /* Attach the buffer to the mbuf. */
1057 m_new->m_ext.ext_arg = buf;
1058 m_new->m_ext.ext_buf = buf->bge_buf;
1059 m_new->m_ext.ext_free = bge_jfree;
1060 m_new->m_ext.ext_ref = bge_jref;
1061 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN;
1063 m_new->m_flags |= M_EXT;
1065 m_new->m_data = m_new->m_ext.ext_buf;
1066 m_new->m_len = m_new->m_pkthdr.len = m_new->m_ext.ext_size;
1068 paddr = buf->bge_paddr;
1069 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) {
1070 m_adj(m_new, ETHER_ALIGN);
1071 paddr += ETHER_ALIGN;
1074 /* Save necessary information */
1075 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_mbuf = m_new;
1076 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_paddr = paddr;
1078 /* Set up the descriptor. */
1079 bge_setup_rxdesc_jumbo(sc, i);
1084 bge_setup_rxdesc_jumbo(struct bge_softc *sc, int i)
1086 struct bge_rx_bd *r;
1087 struct bge_rxchain *rc;
1089 r = &sc->bge_ldata.bge_rx_jumbo_ring[i];
1090 rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1092 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1093 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1094 r->bge_len = rc->bge_mbuf->m_len;
1096 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
1100 bge_init_rx_ring_std(struct bge_softc *sc)
1104 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1105 error = bge_newbuf_std(sc, i, 1);
1110 sc->bge_std = BGE_STD_RX_RING_CNT - 1;
1111 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
1117 bge_free_rx_ring_std(struct bge_softc *sc)
1121 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1122 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_std_chain[i];
1124 if (rc->bge_mbuf != NULL) {
1125 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
1126 sc->bge_cdata.bge_rx_std_dmamap[i]);
1127 m_freem(rc->bge_mbuf);
1128 rc->bge_mbuf = NULL;
1130 bzero(&sc->bge_ldata.bge_rx_std_ring[i],
1131 sizeof(struct bge_rx_bd));
1136 bge_init_rx_ring_jumbo(struct bge_softc *sc)
1138 struct bge_rcb *rcb;
1141 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1142 error = bge_newbuf_jumbo(sc, i, 1);
1147 sc->bge_jumbo = BGE_JUMBO_RX_RING_CNT - 1;
1149 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1150 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
1151 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1153 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
1159 bge_free_rx_ring_jumbo(struct bge_softc *sc)
1163 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1164 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1166 if (rc->bge_mbuf != NULL) {
1167 m_freem(rc->bge_mbuf);
1168 rc->bge_mbuf = NULL;
1170 bzero(&sc->bge_ldata.bge_rx_jumbo_ring[i],
1171 sizeof(struct bge_rx_bd));
1176 bge_free_tx_ring(struct bge_softc *sc)
1180 for (i = 0; i < BGE_TX_RING_CNT; i++) {
1181 if (sc->bge_cdata.bge_tx_chain[i] != NULL) {
1182 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
1183 sc->bge_cdata.bge_tx_dmamap[i]);
1184 m_freem(sc->bge_cdata.bge_tx_chain[i]);
1185 sc->bge_cdata.bge_tx_chain[i] = NULL;
1187 bzero(&sc->bge_ldata.bge_tx_ring[i],
1188 sizeof(struct bge_tx_bd));
1193 bge_init_tx_ring(struct bge_softc *sc)
1196 sc->bge_tx_saved_considx = 0;
1197 sc->bge_tx_prodidx = 0;
1199 /* Initialize transmit producer index for host-memory send ring. */
1200 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1202 /* 5700 b2 errata */
1203 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1204 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1206 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1207 /* 5700 b2 errata */
1208 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1209 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1215 bge_setmulti(struct bge_softc *sc)
1218 struct ifmultiaddr *ifma;
1219 uint32_t hashes[4] = { 0, 0, 0, 0 };
1222 ifp = &sc->arpcom.ac_if;
1224 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1225 for (i = 0; i < 4; i++)
1226 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF);
1230 /* First, zot all the existing filters. */
1231 for (i = 0; i < 4; i++)
1232 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0);
1234 /* Now program new ones. */
1235 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1236 if (ifma->ifma_addr->sa_family != AF_LINK)
1239 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1240 ETHER_ADDR_LEN) & 0x7f;
1241 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
1244 for (i = 0; i < 4; i++)
1245 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]);
1249 * Do endian, PCI and DMA initialization. Also check the on-board ROM
1250 * self-test results.
1253 bge_chipinit(struct bge_softc *sc)
1256 uint32_t dma_rw_ctl;
1259 /* Set endian type before we access any non-PCI registers. */
1260 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL,
1261 BGE_INIT | sc->bge_pci_miscctl, 4);
1263 /* Clear the MAC control register */
1264 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
1267 * Clear the MAC statistics block in the NIC's
1270 for (i = BGE_STATS_BLOCK;
1271 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t))
1272 BGE_MEMWIN_WRITE(sc, i, 0);
1274 for (i = BGE_STATUS_BLOCK;
1275 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t))
1276 BGE_MEMWIN_WRITE(sc, i, 0);
1278 if (sc->bge_chiprev == BGE_CHIPREV_5704_BX) {
1280 * Fix data corruption caused by non-qword write with WB.
1281 * Fix master abort in PCI mode.
1282 * Fix PCI latency timer.
1284 val = pci_read_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, 2);
1285 val |= (1 << 10) | (1 << 12) | (1 << 13);
1286 pci_write_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, val, 2);
1289 /* Set up the PCI DMA control register. */
1290 dma_rw_ctl = BGE_PCI_READ_CMD | BGE_PCI_WRITE_CMD;
1291 if (sc->bge_flags & BGE_FLAG_PCIE) {
1293 /* DMA read watermark not used on PCI-E */
1294 dma_rw_ctl |= (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1295 } else if (sc->bge_flags & BGE_FLAG_PCIX) {
1297 if (sc->bge_asicrev == BGE_ASICREV_BCM5780) {
1298 dma_rw_ctl |= (0x4 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1299 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1300 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE_GLOBAL;
1301 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5714) {
1302 dma_rw_ctl |= (0x4 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1303 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1304 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE_LOCAL;
1305 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1306 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1307 uint32_t rd_wat = 0x7;
1310 clkctl = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f;
1311 if ((sc->bge_flags & BGE_FLAG_MAXADDR_40BIT) &&
1312 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1314 BGE_PCIDMARWCTL_ONEDMA_ATONCE_LOCAL;
1315 } else if (clkctl == 0x6 || clkctl == 0x7) {
1317 BGE_PCIDMARWCTL_ONEDMA_ATONCE_GLOBAL;
1319 if (sc->bge_asicrev == BGE_ASICREV_BCM5703)
1322 dma_rw_ctl |= (rd_wat << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1323 (3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1324 dma_rw_ctl |= BGE_PCIDMARWCTL_ASRT_ALL_BE;
1326 dma_rw_ctl |= (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1327 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1331 /* Conventional PCI bus */
1332 dma_rw_ctl |= (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1333 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1334 if (sc->bge_asicrev != BGE_ASICREV_BCM5705 &&
1335 sc->bge_asicrev != BGE_ASICREV_BCM5750)
1339 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1340 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1341 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA;
1342 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
1343 sc->bge_asicrev == BGE_ASICREV_BCM5701) {
1344 dma_rw_ctl |= BGE_PCIDMARWCTL_USE_MRM |
1345 BGE_PCIDMARWCTL_ASRT_ALL_BE;
1347 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4);
1350 * Set up general mode register.
1352 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
1353 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS|
1354 BGE_MODECTL_TX_NO_PHDR_CSUM);
1357 * BCM5701 B5 have a bug causing data corruption when using
1358 * 64-bit DMA reads, which can be terminated early and then
1359 * completed later as 32-bit accesses, in combination with
1362 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
1363 sc->bge_chipid == BGE_CHIPID_BCM5701_B5)
1364 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_FORCE_PCI32);
1367 * Disable memory write invalidate. Apparently it is not supported
1368 * properly by these devices. Also ensure that INTx isn't disabled,
1369 * as these chips need it even when using MSI.
1371 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD,
1372 (PCIM_CMD_MWRICEN | PCIM_CMD_INTxDIS), 4);
1374 /* Set the timer prescaler (always 66Mhz) */
1375 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
1377 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1378 DELAY(40); /* XXX */
1380 /* Put PHY into ready state */
1381 BGE_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
1382 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */
1390 bge_blockinit(struct bge_softc *sc)
1392 struct bge_rcb *rcb;
1399 * Initialize the memory window pointer register so that
1400 * we can access the first 32K of internal NIC RAM. This will
1401 * allow us to set up the TX send ring RCBs and the RX return
1402 * ring RCBs, plus other things which live in NIC memory.
1404 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
1406 /* Note: the BCM5704 has a smaller mbuf space than other chips. */
1408 if (!BGE_IS_5705_PLUS(sc)) {
1409 /* Configure mbuf memory pool */
1410 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1);
1411 if (sc->bge_asicrev == BGE_ASICREV_BCM5704)
1412 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000);
1414 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000);
1416 /* Configure DMA resource pool */
1417 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR,
1418 BGE_DMA_DESCRIPTORS);
1419 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000);
1422 /* Configure mbuf pool watermarks */
1423 if (!BGE_IS_5705_PLUS(sc)) {
1424 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50);
1425 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20);
1426 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1427 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1428 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1429 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04);
1430 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10);
1432 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1433 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
1434 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1437 /* Configure DMA resource watermarks */
1438 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
1439 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
1441 /* Enable buffer manager */
1442 CSR_WRITE_4(sc, BGE_BMAN_MODE,
1443 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN);
1445 /* Poll for buffer manager start indication */
1446 for (i = 0; i < BGE_TIMEOUT; i++) {
1447 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
1452 if (i == BGE_TIMEOUT) {
1453 if_printf(&sc->arpcom.ac_if,
1454 "buffer manager failed to start\n");
1458 /* Enable flow-through queues */
1459 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
1460 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
1462 /* Wait until queue initialization is complete */
1463 for (i = 0; i < BGE_TIMEOUT; i++) {
1464 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
1469 if (i == BGE_TIMEOUT) {
1470 if_printf(&sc->arpcom.ac_if,
1471 "flow-through queue init failed\n");
1476 * Summary of rings supported by the controller:
1478 * Standard Receive Producer Ring
1479 * - This ring is used to feed receive buffers for "standard"
1480 * sized frames (typically 1536 bytes) to the controller.
1482 * Jumbo Receive Producer Ring
1483 * - This ring is used to feed receive buffers for jumbo sized
1484 * frames (i.e. anything bigger than the "standard" frames)
1485 * to the controller.
1487 * Mini Receive Producer Ring
1488 * - This ring is used to feed receive buffers for "mini"
1489 * sized frames to the controller.
1490 * - This feature required external memory for the controller
1491 * but was never used in a production system. Should always
1494 * Receive Return Ring
1495 * - After the controller has placed an incoming frame into a
1496 * receive buffer that buffer is moved into a receive return
1497 * ring. The driver is then responsible to passing the
1498 * buffer up to the stack. Many versions of the controller
1499 * support multiple RR rings.
1502 * - This ring is used for outgoing frames. Many versions of
1503 * the controller support multiple send rings.
1506 /* Initialize the standard receive producer ring control block. */
1507 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb;
1508 rcb->bge_hostaddr.bge_addr_lo =
1509 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr);
1510 rcb->bge_hostaddr.bge_addr_hi =
1511 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr);
1512 if (BGE_IS_5705_PLUS(sc)) {
1514 * Bits 31-16: Programmable ring size (512, 256, 128, 64, 32)
1515 * Bits 15-2 : Reserved (should be 0)
1516 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled
1519 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
1522 * Ring size is always XXX entries
1523 * Bits 31-16: Maximum RX frame size
1524 * Bits 15-2 : Reserved (should be 0)
1525 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled
1528 rcb->bge_maxlen_flags =
1529 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0);
1531 rcb->bge_nicaddr = BGE_STD_RX_RINGS;
1532 /* Write the standard receive producer ring control block. */
1533 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
1534 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
1535 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1536 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
1537 /* Reset the standard receive producer ring producer index. */
1538 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1541 * Initialize the jumbo RX producer ring control
1542 * block. We set the 'ring disabled' bit in the
1543 * flags field until we're actually ready to start
1544 * using this ring (i.e. once we set the MTU
1545 * high enough to require it).
1547 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1548 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1549 /* Get the jumbo receive producer ring RCB parameters. */
1550 rcb->bge_hostaddr.bge_addr_lo =
1551 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1552 rcb->bge_hostaddr.bge_addr_hi =
1553 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1554 rcb->bge_maxlen_flags =
1555 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN,
1556 BGE_RCB_FLAG_RING_DISABLED);
1557 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
1558 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
1559 rcb->bge_hostaddr.bge_addr_hi);
1560 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
1561 rcb->bge_hostaddr.bge_addr_lo);
1562 /* Program the jumbo receive producer ring RCB parameters. */
1563 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
1564 rcb->bge_maxlen_flags);
1565 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr);
1566 /* Reset the jumbo receive producer ring producer index. */
1567 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1570 /* Disable the mini receive producer ring RCB. */
1571 if (BGE_IS_5700_FAMILY(sc)) {
1572 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb;
1573 rcb->bge_maxlen_flags =
1574 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED);
1575 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS,
1576 rcb->bge_maxlen_flags);
1577 /* Reset the mini receive producer ring producer index. */
1578 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
1581 /* Choose de-pipeline mode for BCM5906 A0, A1 and A2. */
1582 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
1583 (sc->bge_chipid == BGE_CHIPID_BCM5906_A0 ||
1584 sc->bge_chipid == BGE_CHIPID_BCM5906_A1 ||
1585 sc->bge_chipid == BGE_CHIPID_BCM5906_A2)) {
1586 CSR_WRITE_4(sc, BGE_ISO_PKT_TX,
1587 (CSR_READ_4(sc, BGE_ISO_PKT_TX) & ~3) | 2);
1591 * The BD ring replenish thresholds control how often the
1592 * hardware fetches new BD's from the producer rings in host
1593 * memory. Setting the value too low on a busy system can
1594 * starve the hardware and recue the throughpout.
1596 * Set the BD ring replentish thresholds. The recommended
1597 * values are 1/8th the number of descriptors allocated to
1600 if (BGE_IS_5705_PLUS(sc))
1603 val = BGE_STD_RX_RING_CNT / 8;
1604 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val);
1605 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1606 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH,
1607 BGE_JUMBO_RX_RING_CNT/8);
1611 * Disable all send rings by setting the 'ring disabled' bit
1612 * in the flags field of all the TX send ring control blocks,
1613 * located in NIC memory.
1615 if (!BGE_IS_5705_PLUS(sc)) {
1616 /* 5700 to 5704 had 16 send rings. */
1617 limit = BGE_TX_RINGS_EXTSSRAM_MAX;
1621 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1622 for (i = 0; i < limit; i++) {
1623 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1624 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1625 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1626 vrcb += sizeof(struct bge_rcb);
1629 /* Configure send ring RCB 0 (we use only the first ring) */
1630 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1631 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr);
1632 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1633 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1634 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1635 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1636 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1637 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1640 * Disable all receive return rings by setting the
1641 * 'ring diabled' bit in the flags field of all the receive
1642 * return ring control blocks, located in NIC memory.
1644 if (!BGE_IS_5705_PLUS(sc))
1645 limit = BGE_RX_RINGS_MAX;
1646 else if (sc->bge_asicrev == BGE_ASICREV_BCM5755)
1650 /* Disable all receive return rings. */
1651 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1652 for (i = 0; i < limit; i++) {
1653 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1654 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1655 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1656 BGE_RCB_FLAG_RING_DISABLED);
1657 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1658 bge_writembx(sc, BGE_MBX_RX_CONS0_LO +
1659 (i * (sizeof(uint64_t))), 0);
1660 vrcb += sizeof(struct bge_rcb);
1664 * Set up receive return ring 0. Note that the NIC address
1665 * for RX return rings is 0x0. The return rings live entirely
1666 * within the host, so the nicaddr field in the RCB isn't used.
1668 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1669 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr);
1670 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1671 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1672 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1673 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1674 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
1676 /* Set random backoff seed for TX */
1677 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1678 sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1679 sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1680 sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1681 BGE_TX_BACKOFF_SEED_MASK);
1683 /* Set inter-packet gap */
1684 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
1687 * Specify which ring to use for packets that don't match
1690 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1693 * Configure number of RX lists. One interrupt distribution
1694 * list, sixteen active lists, one bad frames class.
1696 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1698 /* Inialize RX list placement stats mask. */
1699 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1700 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1702 /* Disable host coalescing until we get it set up */
1703 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1705 /* Poll to make sure it's shut down. */
1706 for (i = 0; i < BGE_TIMEOUT; i++) {
1707 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1712 if (i == BGE_TIMEOUT) {
1713 if_printf(&sc->arpcom.ac_if,
1714 "host coalescing engine failed to idle\n");
1718 /* Set up host coalescing defaults */
1719 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
1720 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
1721 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_coal_bds);
1722 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_coal_bds);
1723 if (!BGE_IS_5705_PLUS(sc)) {
1724 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT,
1725 sc->bge_rx_coal_ticks_int);
1726 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT,
1727 sc->bge_tx_coal_ticks_int);
1731 * The datasheet (57XX-PG105-R) says BCM5705+ do not
1732 * have following two registers; obviously it is wrong.
1734 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, sc->bge_rx_coal_bds_int);
1735 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, sc->bge_tx_coal_bds_int);
1737 /* Set up address of statistics block */
1738 if (!BGE_IS_5705_PLUS(sc)) {
1739 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI,
1740 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr));
1741 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
1742 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr));
1744 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
1745 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
1746 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
1749 /* Set up address of status block */
1750 bzero(sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ);
1751 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1752 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr));
1753 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1754 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr));
1757 * Set up status block partail update size.
1759 * Because only single TX ring, RX produce ring and Rx return ring
1760 * are used, ask device to update only minimum part of status block
1761 * except for BCM5700 AX/BX, whose status block partial update size
1762 * can't be configured.
1764 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1765 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) {
1766 /* XXX Actually reserved on BCM5700 AX/BX */
1767 val = BGE_STATBLKSZ_FULL;
1769 val = BGE_STATBLKSZ_32BYTE;
1773 * Does not seem to have visible effect in both
1774 * bulk data (1472B UDP datagram) and tiny data
1775 * (18B UDP datagram) TX tests.
1777 if (!BGE_IS_CRIPPLED(sc))
1778 val |= BGE_HCCMODE_CLRTICK_TX;
1781 /* Turn on host coalescing state machine */
1782 CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE);
1784 /* Turn on RX BD completion state machine and enable attentions */
1785 CSR_WRITE_4(sc, BGE_RBDC_MODE,
1786 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1788 /* Turn on RX list placement state machine */
1789 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1791 /* Turn on RX list selector state machine. */
1792 if (!BGE_IS_5705_PLUS(sc))
1793 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
1795 val = BGE_MACMODE_TXDMA_ENB | BGE_MACMODE_RXDMA_ENB |
1796 BGE_MACMODE_RX_STATS_CLEAR | BGE_MACMODE_TX_STATS_CLEAR |
1797 BGE_MACMODE_RX_STATS_ENB | BGE_MACMODE_TX_STATS_ENB |
1798 BGE_MACMODE_FRMHDR_DMA_ENB;
1800 if (sc->bge_flags & BGE_FLAG_TBI)
1801 val |= BGE_PORTMODE_TBI;
1802 else if (sc->bge_flags & BGE_FLAG_MII_SERDES)
1803 val |= BGE_PORTMODE_GMII;
1805 val |= BGE_PORTMODE_MII;
1807 /* Turn on DMA, clear stats */
1808 CSR_WRITE_4(sc, BGE_MAC_MODE, val);
1810 /* Set misc. local control, enable interrupts on attentions */
1811 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1814 /* Assert GPIO pins for PHY reset */
1815 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1816 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1817 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1818 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1821 /* Turn on DMA completion state machine */
1822 if (!BGE_IS_5705_PLUS(sc))
1823 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
1825 /* Turn on write DMA state machine */
1826 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1827 if (BGE_IS_5755_PLUS(sc)) {
1828 /* Enable host coalescing bug fix. */
1829 val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1831 if (sc->bge_asicrev == BGE_ASICREV_BCM5785) {
1832 /* Request larger DMA burst size to get better performance. */
1833 val |= BGE_WDMAMODE_BURST_ALL_DATA;
1835 CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1838 if (sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1839 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1840 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1841 sc->bge_asicrev == BGE_ASICREV_BCM57780) {
1843 * Enable fix for read DMA FIFO overruns.
1844 * The fix is to limit the number of RX BDs
1845 * the hardware would fetch at a fime.
1847 val = CSR_READ_4(sc, BGE_RDMA_RSRVCTRL);
1848 CSR_WRITE_4(sc, BGE_RDMA_RSRVCTRL,
1849 val| BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
1852 /* Turn on read DMA state machine */
1853 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1854 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1855 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1856 sc->bge_asicrev == BGE_ASICREV_BCM57780)
1857 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1858 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1859 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1860 if (sc->bge_flags & BGE_FLAG_PCIE)
1861 val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1862 if (sc->bge_flags & BGE_FLAG_TSO)
1863 val |= BGE_RDMAMODE_TSO4_ENABLE;
1864 CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1867 /* Turn on RX data completion state machine */
1868 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1870 /* Turn on RX BD initiator state machine */
1871 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1873 /* Turn on RX data and RX BD initiator state machine */
1874 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1876 /* Turn on Mbuf cluster free state machine */
1877 if (!BGE_IS_5705_PLUS(sc))
1878 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
1880 /* Turn on send BD completion state machine */
1881 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1883 /* Turn on send data completion state machine */
1884 val = BGE_SDCMODE_ENABLE;
1885 if (sc->bge_asicrev == BGE_ASICREV_BCM5761)
1886 val |= BGE_SDCMODE_CDELAY;
1887 CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1889 /* Turn on send data initiator state machine */
1890 if (sc->bge_flags & BGE_FLAG_TSO)
1891 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE |
1892 BGE_SDIMODE_HW_LSO_PRE_DMA);
1894 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1896 /* Turn on send BD initiator state machine */
1897 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1899 /* Turn on send BD selector state machine */
1900 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1902 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1903 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1904 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1906 /* ack/clear link change events */
1907 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1908 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1909 BGE_MACSTAT_LINK_CHANGED);
1910 CSR_WRITE_4(sc, BGE_MI_STS, 0);
1913 * Enable attention when the link has changed state for
1914 * devices that use auto polling.
1916 if (sc->bge_flags & BGE_FLAG_TBI) {
1917 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1919 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
1920 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
1923 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1924 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
1925 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
1926 BGE_EVTENB_MI_INTERRUPT);
1931 * Clear any pending link state attention.
1932 * Otherwise some link state change events may be lost until attention
1933 * is cleared by bge_intr() -> bge_softc.bge_link_upd() sequence.
1934 * It's not necessary on newer BCM chips - perhaps enabling link
1935 * state change attentions implies clearing pending attention.
1937 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1938 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1939 BGE_MACSTAT_LINK_CHANGED);
1941 /* Enable link state change attentions. */
1942 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1948 * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1949 * against our list and return its name if we find a match. Note
1950 * that since the Broadcom controller contains VPD support, we
1951 * can get the device name string from the controller itself instead
1952 * of the compiled-in string. This is a little slow, but it guarantees
1953 * we'll always announce the right product name.
1956 bge_probe(device_t dev)
1958 const struct bge_type *t;
1959 uint16_t product, vendor;
1961 product = pci_get_device(dev);
1962 vendor = pci_get_vendor(dev);
1964 for (t = bge_devs; t->bge_name != NULL; t++) {
1965 if (vendor == t->bge_vid && product == t->bge_did)
1968 if (t->bge_name == NULL)
1971 device_set_desc(dev, t->bge_name);
1976 bge_attach(device_t dev)
1979 struct bge_softc *sc;
1980 uint32_t hwcfg = 0, misccfg;
1981 int error = 0, rid, capmask;
1982 uint8_t ether_addr[ETHER_ADDR_LEN];
1983 uint16_t product, vendor;
1984 driver_intr_t *intr_func;
1985 uintptr_t mii_priv = 0;
1989 sc = device_get_softc(dev);
1991 callout_init_mp(&sc->bge_stat_timer);
1992 lwkt_serialize_init(&sc->bge_jslot_serializer);
1994 product = pci_get_device(dev);
1995 vendor = pci_get_vendor(dev);
1997 #ifndef BURN_BRIDGES
1998 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
2001 irq = pci_read_config(dev, PCIR_INTLINE, 4);
2002 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
2004 device_printf(dev, "chip is in D%d power mode "
2005 "-- setting to D0\n", pci_get_powerstate(dev));
2007 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
2009 pci_write_config(dev, PCIR_INTLINE, irq, 4);
2010 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
2012 #endif /* !BURN_BRIDGE */
2015 * Map control/status registers.
2017 pci_enable_busmaster(dev);
2020 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
2023 if (sc->bge_res == NULL) {
2024 device_printf(dev, "couldn't map memory\n");
2028 sc->bge_btag = rman_get_bustag(sc->bge_res);
2029 sc->bge_bhandle = rman_get_bushandle(sc->bge_res);
2031 /* Save various chip information */
2033 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
2034 BGE_PCIMISCCTL_ASICREV_SHIFT;
2035 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG) {
2036 /* All chips, which use BGE_PCI_PRODID_ASICREV, have CPMU */
2037 sc->bge_flags |= BGE_FLAG_CPMU;
2038 sc->bge_chipid = pci_read_config(dev, BGE_PCI_PRODID_ASICREV, 4);
2040 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid);
2041 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid);
2043 /* Save chipset family. */
2044 switch (sc->bge_asicrev) {
2045 case BGE_ASICREV_BCM5755:
2046 case BGE_ASICREV_BCM5761:
2047 case BGE_ASICREV_BCM5784:
2048 case BGE_ASICREV_BCM5785:
2049 case BGE_ASICREV_BCM5787:
2050 case BGE_ASICREV_BCM57780:
2051 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS |
2055 case BGE_ASICREV_BCM5700:
2056 case BGE_ASICREV_BCM5701:
2057 case BGE_ASICREV_BCM5703:
2058 case BGE_ASICREV_BCM5704:
2059 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO;
2062 case BGE_ASICREV_BCM5714_A0:
2063 case BGE_ASICREV_BCM5780:
2064 case BGE_ASICREV_BCM5714:
2065 sc->bge_flags |= BGE_FLAG_5714_FAMILY;
2068 case BGE_ASICREV_BCM5750:
2069 case BGE_ASICREV_BCM5752:
2070 case BGE_ASICREV_BCM5906:
2071 sc->bge_flags |= BGE_FLAG_575X_PLUS;
2074 case BGE_ASICREV_BCM5705:
2075 sc->bge_flags |= BGE_FLAG_5705_PLUS;
2079 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
2080 sc->bge_flags |= BGE_FLAG_NO_EEPROM;
2082 misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID_MASK;
2083 if (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2084 (misccfg == BGE_MISCCFG_BOARD_ID_5788 ||
2085 misccfg == BGE_MISCCFG_BOARD_ID_5788M))
2086 sc->bge_flags |= BGE_FLAG_5788;
2088 /* BCM5755 or higher and BCM5906 have short DMA bug. */
2089 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906)
2090 sc->bge_flags |= BGE_FLAG_SHORTDMA;
2093 * Check if this is a PCI-X or PCI Express device.
2095 if (BGE_IS_5705_PLUS(sc)) {
2096 if (pci_is_pcie(dev)) {
2097 sc->bge_flags |= BGE_FLAG_PCIE;
2098 sc->bge_pciecap = pci_get_pciecap_ptr(sc->bge_dev);
2099 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
2103 * Check if the device is in PCI-X Mode.
2104 * (This bit is not valid on PCI Express controllers.)
2106 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) &
2107 BGE_PCISTATE_PCI_BUSMODE) == 0) {
2108 sc->bge_flags |= BGE_FLAG_PCIX;
2109 sc->bge_pcixcap = pci_get_pcixcap_ptr(sc->bge_dev);
2110 sc->bge_mbox_reorder = device_getenv_int(sc->bge_dev,
2114 device_printf(dev, "CHIP ID 0x%08x; "
2115 "ASIC REV 0x%02x; CHIP REV 0x%02x; %s\n",
2116 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev,
2117 (sc->bge_flags & BGE_FLAG_PCIX) ? "PCI-X"
2118 : ((sc->bge_flags & BGE_FLAG_PCIE) ?
2122 * The 40bit DMA bug applies to the 5714/5715 controllers and is
2123 * not actually a MAC controller bug but an issue with the embedded
2124 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround.
2126 if ((sc->bge_flags & BGE_FLAG_PCIX) &&
2127 (BGE_IS_5714_FAMILY(sc) || device_getenv_int(dev, "dma40b", 0)))
2128 sc->bge_flags |= BGE_FLAG_MAXADDR_40BIT;
2131 * When using the BCM5701 in PCI-X mode, data corruption has
2132 * been observed in the first few bytes of some received packets.
2133 * Aligning the packet buffer in memory eliminates the corruption.
2134 * Unfortunately, this misaligns the packet payloads. On platforms
2135 * which do not support unaligned accesses, we will realign the
2136 * payloads by copying the received packets.
2138 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
2139 (sc->bge_flags & BGE_FLAG_PCIX))
2140 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG;
2142 if (!BGE_IS_CRIPPLED(sc)) {
2143 if (device_getenv_int(dev, "status_tag", 1)) {
2144 sc->bge_flags |= BGE_FLAG_STATUS_TAG;
2145 sc->bge_pci_miscctl = BGE_PCIMISCCTL_TAGGED_STATUS;
2147 device_printf(dev, "enable status tag\n");
2151 if (BGE_IS_5755_PLUS(sc)) {
2153 * BCM5754 and BCM5787 shares the same ASIC id so
2154 * explicit device id check is required.
2155 * Due to unknown reason TSO does not work on BCM5755M.
2157 if (product != PCI_PRODUCT_BROADCOM_BCM5754 &&
2158 product != PCI_PRODUCT_BROADCOM_BCM5754M &&
2159 product != PCI_PRODUCT_BROADCOM_BCM5755M)
2160 sc->bge_flags |= BGE_FLAG_TSO;
2164 * Set various PHY quirk flags.
2167 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
2168 sc->bge_asicrev == BGE_ASICREV_BCM5701) &&
2169 pci_get_subvendor(dev) == PCI_VENDOR_DELL)
2170 mii_priv |= BRGPHY_FLAG_NO_3LED;
2172 capmask = MII_CAPMASK_DEFAULT;
2173 if ((sc->bge_asicrev == BGE_ASICREV_BCM5703 &&
2174 (misccfg == 0x4000 || misccfg == 0x8000)) ||
2175 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2176 vendor == PCI_VENDOR_BROADCOM &&
2177 (product == PCI_PRODUCT_BROADCOM_BCM5901 ||
2178 product == PCI_PRODUCT_BROADCOM_BCM5901A2 ||
2179 product == PCI_PRODUCT_BROADCOM_BCM5705F)) ||
2180 (vendor == PCI_VENDOR_BROADCOM &&
2181 (product == PCI_PRODUCT_BROADCOM_BCM5751F ||
2182 product == PCI_PRODUCT_BROADCOM_BCM5753F ||
2183 product == PCI_PRODUCT_BROADCOM_BCM5787F)) ||
2184 product == PCI_PRODUCT_BROADCOM_BCM57790 ||
2185 sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2187 capmask &= ~BMSR_EXTSTAT;
2190 mii_priv |= BRGPHY_FLAG_WIRESPEED;
2191 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
2192 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2193 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
2194 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
2195 sc->bge_asicrev == BGE_ASICREV_BCM5906)
2196 mii_priv &= ~BRGPHY_FLAG_WIRESPEED;
2198 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 ||
2199 sc->bge_chipid == BGE_CHIPID_BCM5701_B0)
2200 mii_priv |= BRGPHY_FLAG_CRC_BUG;
2202 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX ||
2203 sc->bge_chiprev == BGE_CHIPREV_5704_AX)
2204 mii_priv |= BRGPHY_FLAG_ADC_BUG;
2206 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
2207 mii_priv |= BRGPHY_FLAG_5704_A0;
2209 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
2210 mii_priv |= BRGPHY_FLAG_5906;
2212 if (BGE_IS_5705_PLUS(sc) &&
2213 sc->bge_asicrev != BGE_ASICREV_BCM5906 &&
2214 /* sc->bge_asicrev != BGE_ASICREV_BCM5717 && */
2215 sc->bge_asicrev != BGE_ASICREV_BCM5785 &&
2216 /* sc->bge_asicrev != BGE_ASICREV_BCM57765 && */
2217 sc->bge_asicrev != BGE_ASICREV_BCM57780) {
2218 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 ||
2219 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
2220 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
2221 sc->bge_asicrev == BGE_ASICREV_BCM5787) {
2222 if (product != PCI_PRODUCT_BROADCOM_BCM5722 &&
2223 product != PCI_PRODUCT_BROADCOM_BCM5756)
2224 mii_priv |= BRGPHY_FLAG_JITTER_BUG;
2225 if (product == PCI_PRODUCT_BROADCOM_BCM5755M)
2226 mii_priv |= BRGPHY_FLAG_ADJUST_TRIM;
2228 mii_priv |= BRGPHY_FLAG_BER_BUG;
2233 * Allocate interrupt
2235 msi_enable = bge_msi_enable;
2236 if ((sc->bge_flags & BGE_FLAG_STATUS_TAG) == 0) {
2237 /* If "tagged status" is disabled, don't enable MSI */
2239 } else if (msi_enable) {
2240 msi_enable = 0; /* Disable by default */
2241 if (BGE_IS_575X_PLUS(sc)) {
2243 /* XXX we filter all 5714 chips */
2244 if (sc->bge_asicrev == BGE_ASICREV_BCM5714 ||
2245 (sc->bge_asicrev == BGE_ASICREV_BCM5750 &&
2246 (sc->bge_chiprev == BGE_CHIPREV_5750_AX ||
2247 sc->bge_chiprev == BGE_CHIPREV_5750_BX)))
2249 else if (BGE_IS_5755_PLUS(sc) ||
2250 sc->bge_asicrev == BGE_ASICREV_BCM5906)
2251 sc->bge_flags |= BGE_FLAG_ONESHOT_MSI;
2255 if (pci_find_extcap(dev, PCIY_MSI, &sc->bge_msicap)) {
2256 device_printf(dev, "no MSI capability\n");
2261 sc->bge_irq_type = pci_alloc_1intr(dev, msi_enable, &sc->bge_irq_rid,
2264 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->bge_irq_rid,
2266 if (sc->bge_irq == NULL) {
2267 device_printf(dev, "couldn't map interrupt\n");
2272 if (sc->bge_irq_type == PCI_INTR_TYPE_MSI)
2275 sc->bge_flags &= ~BGE_FLAG_ONESHOT_MSI;
2277 /* Initialize if_name earlier, so if_printf could be used */
2278 ifp = &sc->arpcom.ac_if;
2279 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2281 /* Try to reset the chip. */
2284 if (bge_chipinit(sc)) {
2285 device_printf(dev, "chip initialization failed\n");
2291 * Get station address
2293 error = bge_get_eaddr(sc, ether_addr);
2295 device_printf(dev, "failed to read station address\n");
2299 /* 5705/5750 limits RX return ring to 512 entries. */
2300 if (BGE_IS_5705_PLUS(sc))
2301 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
2303 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
2305 error = bge_dma_alloc(sc);
2309 /* Set default tuneable values. */
2310 sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
2311 sc->bge_rx_coal_ticks = BGE_RX_COAL_TICKS_DEF;
2312 sc->bge_tx_coal_ticks = BGE_TX_COAL_TICKS_DEF;
2313 sc->bge_rx_coal_bds = BGE_RX_COAL_BDS_DEF;
2314 sc->bge_tx_coal_bds = BGE_TX_COAL_BDS_DEF;
2315 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2316 sc->bge_rx_coal_ticks_int = BGE_RX_COAL_TICKS_DEF;
2317 sc->bge_tx_coal_ticks_int = BGE_TX_COAL_TICKS_DEF;
2318 sc->bge_rx_coal_bds_int = BGE_RX_COAL_BDS_DEF;
2319 sc->bge_tx_coal_bds_int = BGE_TX_COAL_BDS_DEF;
2321 sc->bge_rx_coal_ticks_int = BGE_RX_COAL_TICKS_MIN;
2322 sc->bge_tx_coal_ticks_int = BGE_TX_COAL_TICKS_MIN;
2323 sc->bge_rx_coal_bds_int = BGE_RX_COAL_BDS_MIN;
2324 sc->bge_tx_coal_bds_int = BGE_TX_COAL_BDS_MIN;
2326 sc->bge_tx_wreg = 16;
2328 /* Set up TX spare and reserved descriptor count */
2329 if (sc->bge_flags & BGE_FLAG_TSO) {
2330 sc->bge_txspare = BGE_NSEG_SPARE_TSO;
2331 sc->bge_txrsvd = BGE_NSEG_RSVD_TSO;
2333 sc->bge_txspare = BGE_NSEG_SPARE;
2334 sc->bge_txrsvd = BGE_NSEG_RSVD;
2337 /* Set up ifnet structure */
2339 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2340 ifp->if_ioctl = bge_ioctl;
2341 ifp->if_start = bge_start;
2342 #ifdef IFPOLL_ENABLE
2343 ifp->if_npoll = bge_npoll;
2345 ifp->if_watchdog = bge_watchdog;
2346 ifp->if_init = bge_init;
2347 ifp->if_mtu = ETHERMTU;
2348 ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2349 ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
2350 ifq_set_ready(&ifp->if_snd);
2353 * 5700 B0 chips do not support checksumming correctly due
2356 if (sc->bge_chipid != BGE_CHIPID_BCM5700_B0) {
2357 ifp->if_capabilities |= IFCAP_HWCSUM;
2358 ifp->if_hwassist |= BGE_CSUM_FEATURES;
2360 if (sc->bge_flags & BGE_FLAG_TSO) {
2361 ifp->if_capabilities |= IFCAP_TSO;
2362 ifp->if_hwassist |= CSUM_TSO;
2364 ifp->if_capenable = ifp->if_capabilities;
2367 * Figure out what sort of media we have by checking the
2368 * hardware config word in the first 32k of NIC internal memory,
2369 * or fall back to examining the EEPROM if necessary.
2370 * Note: on some BCM5700 cards, this value appears to be unset.
2371 * If that's the case, we have to rely on identifying the NIC
2372 * by its PCI subsystem ID, as we do below for the SysKonnect
2375 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) {
2376 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
2378 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
2380 device_printf(dev, "failed to read EEPROM\n");
2384 hwcfg = ntohl(hwcfg);
2387 /* The SysKonnect SK-9D41 is a 1000baseSX card. */
2388 if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41 ||
2389 (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) {
2390 if (BGE_IS_5714_FAMILY(sc))
2391 sc->bge_flags |= BGE_FLAG_MII_SERDES;
2393 sc->bge_flags |= BGE_FLAG_TBI;
2397 if (sc->bge_flags & BGE_FLAG_CPMU)
2398 sc->bge_mi_mode = BGE_MIMODE_500KHZ_CONST;
2400 sc->bge_mi_mode = BGE_MIMODE_BASE;
2401 if (BGE_IS_5700_FAMILY(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5705) {
2402 /* Enable auto polling for BCM570[0-5]. */
2403 sc->bge_mi_mode |= BGE_MIMODE_AUTOPOLL;
2406 /* Setup link status update stuffs */
2407 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
2408 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
2409 sc->bge_link_upd = bge_bcm5700_link_upd;
2410 sc->bge_link_chg = BGE_MACSTAT_MI_INTERRUPT;
2411 } else if (sc->bge_flags & BGE_FLAG_TBI) {
2412 sc->bge_link_upd = bge_tbi_link_upd;
2413 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2414 } else if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
2415 sc->bge_link_upd = bge_autopoll_link_upd;
2416 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2418 sc->bge_link_upd = bge_copper_link_upd;
2419 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2423 * Broadcom's own driver always assumes the internal
2424 * PHY is at GMII address 1. On some chips, the PHY responds
2425 * to accesses at all addresses, which could cause us to
2426 * bogusly attach the PHY 32 times at probe type. Always
2427 * restricting the lookup to address 1 is simpler than
2428 * trying to figure out which chips revisions should be
2433 if (sc->bge_flags & BGE_FLAG_TBI) {
2434 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK,
2435 bge_ifmedia_upd, bge_ifmedia_sts);
2436 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2437 ifmedia_add(&sc->bge_ifmedia,
2438 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2439 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2440 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
2441 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
2443 struct mii_probe_args mii_args;
2445 mii_probe_args_init(&mii_args, bge_ifmedia_upd, bge_ifmedia_sts);
2446 mii_args.mii_probemask = 1 << sc->bge_phyno;
2447 mii_args.mii_capmask = capmask;
2448 mii_args.mii_privtag = MII_PRIVTAG_BRGPHY;
2449 mii_args.mii_priv = mii_priv;
2451 error = mii_probe(dev, &sc->bge_miibus, &mii_args);
2453 device_printf(dev, "MII without any PHY!\n");
2459 * Create sysctl nodes.
2461 sysctl_ctx_init(&sc->bge_sysctl_ctx);
2462 sc->bge_sysctl_tree = SYSCTL_ADD_NODE(&sc->bge_sysctl_ctx,
2463 SYSCTL_STATIC_CHILDREN(_hw),
2465 device_get_nameunit(dev),
2467 if (sc->bge_sysctl_tree == NULL) {
2468 device_printf(dev, "can't add sysctl node\n");
2473 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2474 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2475 OID_AUTO, "rx_coal_ticks",
2476 CTLTYPE_INT | CTLFLAG_RW,
2477 sc, 0, bge_sysctl_rx_coal_ticks, "I",
2478 "Receive coalescing ticks (usec).");
2479 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2480 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2481 OID_AUTO, "tx_coal_ticks",
2482 CTLTYPE_INT | CTLFLAG_RW,
2483 sc, 0, bge_sysctl_tx_coal_ticks, "I",
2484 "Transmit coalescing ticks (usec).");
2485 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2486 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2487 OID_AUTO, "rx_coal_bds",
2488 CTLTYPE_INT | CTLFLAG_RW,
2489 sc, 0, bge_sysctl_rx_coal_bds, "I",
2490 "Receive max coalesced BD count.");
2491 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2492 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2493 OID_AUTO, "tx_coal_bds",
2494 CTLTYPE_INT | CTLFLAG_RW,
2495 sc, 0, bge_sysctl_tx_coal_bds, "I",
2496 "Transmit max coalesced BD count.");
2498 SYSCTL_ADD_INT(&sc->bge_sysctl_ctx,
2499 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2500 OID_AUTO, "tx_wreg", CTLFLAG_RW,
2501 &sc->bge_tx_wreg, 0,
2502 "# of segments before writing to hardware register");
2504 if (sc->bge_flags & BGE_FLAG_PCIE) {
2506 * A common design characteristic for many Broadcom
2507 * client controllers is that they only support a
2508 * single outstanding DMA read operation on the PCIe
2509 * bus. This means that it will take twice as long to
2510 * fetch a TX frame that is split into header and
2511 * payload buffers as it does to fetch a single,
2512 * contiguous TX frame (2 reads vs. 1 read). For these
2513 * controllers, coalescing buffers to reduce the number
2514 * of memory reads is effective way to get maximum
2515 * performance(about 940Mbps). Without collapsing TX
2516 * buffers the maximum TCP bulk transfer performance
2517 * is about 850Mbps. However forcing coalescing mbufs
2518 * consumes a lot of CPU cycles, so leave it off by
2521 SYSCTL_ADD_INT(&sc->bge_sysctl_ctx,
2522 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2523 OID_AUTO, "force_defrag", CTLFLAG_RW,
2524 &sc->bge_force_defrag, 0,
2525 "Force defragment on TX path");
2527 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2528 if (!BGE_IS_5705_PLUS(sc)) {
2529 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2530 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2531 "rx_coal_ticks_int", CTLTYPE_INT | CTLFLAG_RW,
2532 sc, 0, bge_sysctl_rx_coal_ticks_int, "I",
2533 "Receive coalescing ticks "
2534 "during interrupt (usec).");
2535 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2536 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2537 "tx_coal_ticks_int", CTLTYPE_INT | CTLFLAG_RW,
2538 sc, 0, bge_sysctl_tx_coal_ticks_int, "I",
2539 "Transmit coalescing ticks "
2540 "during interrupt (usec).");
2542 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2543 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2544 "rx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2545 sc, 0, bge_sysctl_rx_coal_bds_int, "I",
2546 "Receive max coalesced BD count during interrupt.");
2547 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2548 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2549 "tx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2550 sc, 0, bge_sysctl_tx_coal_bds_int, "I",
2551 "Transmit max coalesced BD count during interrupt.");
2555 * Call MI attach routine.
2557 ether_ifattach(ifp, ether_addr, NULL);
2559 #ifdef IFPOLL_ENABLE
2561 ifpoll_compat_setup(&sc->bge_npoll,
2562 &sc->bge_sysctl_ctx, sc->bge_sysctl_tree, device_get_unit(dev),
2563 ifp->if_serializer);
2566 if (sc->bge_irq_type == PCI_INTR_TYPE_MSI) {
2567 if (sc->bge_flags & BGE_FLAG_ONESHOT_MSI) {
2568 intr_func = bge_msi_oneshot;
2570 device_printf(dev, "oneshot MSI\n");
2572 intr_func = bge_msi;
2574 } else if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2575 intr_func = bge_intr_legacy;
2577 intr_func = bge_intr_crippled;
2579 error = bus_setup_intr(dev, sc->bge_irq, INTR_MPSAFE, intr_func, sc,
2580 &sc->bge_intrhand, ifp->if_serializer);
2582 ether_ifdetach(ifp);
2583 device_printf(dev, "couldn't set up irq\n");
2587 ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->bge_irq));
2596 bge_detach(device_t dev)
2598 struct bge_softc *sc = device_get_softc(dev);
2600 if (device_is_attached(dev)) {
2601 struct ifnet *ifp = &sc->arpcom.ac_if;
2603 lwkt_serialize_enter(ifp->if_serializer);
2606 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand);
2607 lwkt_serialize_exit(ifp->if_serializer);
2609 ether_ifdetach(ifp);
2612 if (sc->bge_flags & BGE_FLAG_TBI)
2613 ifmedia_removeall(&sc->bge_ifmedia);
2615 device_delete_child(dev, sc->bge_miibus);
2616 bus_generic_detach(dev);
2618 if (sc->bge_irq != NULL) {
2619 bus_release_resource(dev, SYS_RES_IRQ, sc->bge_irq_rid,
2622 if (sc->bge_irq_type == PCI_INTR_TYPE_MSI)
2623 pci_release_msi(dev);
2625 if (sc->bge_res != NULL) {
2626 bus_release_resource(dev, SYS_RES_MEMORY,
2627 BGE_PCI_BAR0, sc->bge_res);
2630 if (sc->bge_sysctl_tree != NULL)
2631 sysctl_ctx_free(&sc->bge_sysctl_ctx);
2639 bge_reset(struct bge_softc *sc)
2642 uint32_t cachesize, command, pcistate, reset;
2643 void (*write_op)(struct bge_softc *, uint32_t, uint32_t);
2648 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) &&
2649 sc->bge_asicrev != BGE_ASICREV_BCM5906) {
2650 if (sc->bge_flags & BGE_FLAG_PCIE)
2651 write_op = bge_writemem_direct;
2653 write_op = bge_writemem_ind;
2655 write_op = bge_writereg_ind;
2658 /* Save some important PCI state. */
2659 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2660 command = pci_read_config(dev, BGE_PCI_CMD, 4);
2661 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2663 pci_write_config(dev, BGE_PCI_MISC_CTL,
2664 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2665 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2666 sc->bge_pci_miscctl, 4);
2668 /* Disable fastboot on controllers that support it. */
2669 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 ||
2670 BGE_IS_5755_PLUS(sc)) {
2672 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2673 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2677 * Write the magic number to SRAM at offset 0xB50.
2678 * When firmware finishes its initialization it will
2679 * write ~BGE_MAGIC_NUMBER to the same location.
2681 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2683 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2685 /* XXX: Broadcom Linux driver. */
2686 if (sc->bge_flags & BGE_FLAG_PCIE) {
2687 /* Force PCI-E 1.0a mode */
2688 if (sc->bge_asicrev != BGE_ASICREV_BCM5785 &&
2689 CSR_READ_4(sc, BGE_PCIE_PHY_TSTCTL) ==
2690 (BGE_PCIE_PHY_TSTCTL_PSCRAM |
2691 BGE_PCIE_PHY_TSTCTL_PCIE10)) {
2692 CSR_WRITE_4(sc, BGE_PCIE_PHY_TSTCTL,
2693 BGE_PCIE_PHY_TSTCTL_PSCRAM);
2695 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2696 /* Prevent PCIE link training during global reset */
2697 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2703 * Set GPHY Power Down Override to leave GPHY
2704 * powered up in D0 uninitialized.
2706 if (BGE_IS_5705_PLUS(sc) && (sc->bge_flags & BGE_FLAG_CPMU) == 0)
2707 reset |= BGE_MISCCFG_GPHY_PD_OVERRIDE;
2709 /* Issue global reset */
2710 write_op(sc, BGE_MISC_CFG, reset);
2712 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2713 uint32_t status, ctrl;
2715 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2716 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2717 status | BGE_VCPU_STATUS_DRV_RESET);
2718 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2719 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2720 ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2725 /* XXX: Broadcom Linux driver. */
2726 if (sc->bge_flags & BGE_FLAG_PCIE) {
2729 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
2732 DELAY(500000); /* wait for link training to complete */
2733 v = pci_read_config(dev, 0xc4, 4);
2734 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2737 devctl = pci_read_config(dev,
2738 sc->bge_pciecap + PCIER_DEVCTRL, 2);
2740 /* Disable no snoop and disable relaxed ordering. */
2741 devctl &= ~(PCIEM_DEVCTL_RELAX_ORDER | PCIEM_DEVCTL_NOSNOOP);
2743 /* Old PCI-E chips only support 128 bytes Max PayLoad Size. */
2744 if ((sc->bge_flags & BGE_FLAG_CPMU) == 0) {
2745 devctl &= ~PCIEM_DEVCTL_MAX_PAYLOAD_MASK;
2746 devctl |= PCIEM_DEVCTL_MAX_PAYLOAD_128;
2749 pci_write_config(dev, sc->bge_pciecap + PCIER_DEVCTRL,
2752 /* Clear error status. */
2753 pci_write_config(dev, sc->bge_pciecap + PCIER_DEVSTS,
2754 PCIEM_DEVSTS_CORR_ERR |
2755 PCIEM_DEVSTS_NFATAL_ERR |
2756 PCIEM_DEVSTS_FATAL_ERR |
2757 PCIEM_DEVSTS_UNSUPP_REQ, 2);
2760 /* Reset some of the PCI state that got zapped by reset */
2761 pci_write_config(dev, BGE_PCI_MISC_CTL,
2762 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2763 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2764 sc->bge_pci_miscctl, 4);
2765 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2766 pci_write_config(dev, BGE_PCI_CMD, command, 4);
2767 write_op(sc, BGE_MISC_CFG, (65 << 1));
2770 * Disable PCI-X relaxed ordering to ensure status block update
2771 * comes first then packet buffer DMA. Otherwise driver may
2772 * read stale status block.
2774 if (sc->bge_flags & BGE_FLAG_PCIX) {
2777 devctl = pci_read_config(dev,
2778 sc->bge_pcixcap + PCIXR_COMMAND, 2);
2779 devctl &= ~PCIXM_COMMAND_ERO;
2780 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
2781 devctl &= ~PCIXM_COMMAND_MAX_READ;
2782 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2783 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
2784 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS |
2785 PCIXM_COMMAND_MAX_READ);
2786 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2788 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND,
2793 * Enable memory arbiter and re-enable MSI if necessary.
2795 if (BGE_IS_5714_FAMILY(sc)) {
2798 if (sc->bge_irq_type == PCI_INTR_TYPE_MSI) {
2800 * Resetting BCM5714 family will clear MSI
2801 * enable bit; restore it after resetting.
2803 PCI_SETBIT(sc->bge_dev, sc->bge_msicap + PCIR_MSI_CTRL,
2804 PCIM_MSICTRL_MSI_ENABLE, 2);
2805 BGE_SETBIT(sc, BGE_MSI_MODE, BGE_MSIMODE_ENABLE);
2807 val = CSR_READ_4(sc, BGE_MARB_MODE);
2808 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
2810 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2813 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2814 for (i = 0; i < BGE_TIMEOUT; i++) {
2815 val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2816 if (val & BGE_VCPU_STATUS_INIT_DONE)
2820 if (i == BGE_TIMEOUT) {
2821 if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2826 * Poll until we see the 1's complement of the magic number.
2827 * This indicates that the firmware initialization
2830 for (i = 0; i < BGE_FIRMWARE_TIMEOUT; i++) {
2831 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2832 if (val == ~BGE_MAGIC_NUMBER)
2836 if (i == BGE_FIRMWARE_TIMEOUT) {
2837 if_printf(&sc->arpcom.ac_if, "firmware handshake "
2838 "timed out, found 0x%08x\n", val);
2843 * XXX Wait for the value of the PCISTATE register to
2844 * return to its original pre-reset state. This is a
2845 * fairly good indicator of reset completion. If we don't
2846 * wait for the reset to fully complete, trying to read
2847 * from the device's non-PCI registers may yield garbage
2850 for (i = 0; i < BGE_TIMEOUT; i++) {
2851 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2856 /* Fix up byte swapping */
2857 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS |
2858 BGE_MODECTL_BYTESWAP_DATA);
2860 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2863 * The 5704 in TBI mode apparently needs some special
2864 * adjustment to insure the SERDES drive level is set
2867 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 &&
2868 (sc->bge_flags & BGE_FLAG_TBI)) {
2871 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2872 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2873 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2876 /* XXX: Broadcom Linux driver. */
2877 if ((sc->bge_flags & BGE_FLAG_PCIE) &&
2878 sc->bge_chipid != BGE_CHIPID_BCM5750_A0 &&
2879 sc->bge_asicrev != BGE_ASICREV_BCM5785) {
2882 /* Enable Data FIFO protection. */
2883 v = CSR_READ_4(sc, BGE_PCIE_TLDLPL_PORT);
2884 CSR_WRITE_4(sc, BGE_PCIE_TLDLPL_PORT, v | (1 << 25));
2891 * Frame reception handling. This is called if there's a frame
2892 * on the receive return list.
2894 * Note: we have to be able to handle two possibilities here:
2895 * 1) the frame is from the jumbo recieve ring
2896 * 2) the frame is from the standard receive ring
2900 bge_rxeof(struct bge_softc *sc, uint16_t rx_prod, int count)
2903 int stdcnt = 0, jumbocnt = 0;
2905 ifp = &sc->arpcom.ac_if;
2907 while (sc->bge_rx_saved_considx != rx_prod && count != 0) {
2908 struct bge_rx_bd *cur_rx;
2910 struct mbuf *m = NULL;
2911 uint16_t vlan_tag = 0;
2917 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx];
2919 rxidx = cur_rx->bge_idx;
2920 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
2923 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2925 vlan_tag = cur_rx->bge_vlan_tag;
2928 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2929 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
2932 if (rxidx != sc->bge_jumbo) {
2934 if_printf(ifp, "sw jumbo index(%d) "
2935 "and hw jumbo index(%d) mismatch, drop!\n",
2936 sc->bge_jumbo, rxidx);
2937 bge_setup_rxdesc_jumbo(sc, rxidx);
2941 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx].bge_mbuf;
2942 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2944 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2947 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 0)) {
2949 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2953 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
2956 if (rxidx != sc->bge_std) {
2958 if_printf(ifp, "sw std index(%d) "
2959 "and hw std index(%d) mismatch, drop!\n",
2960 sc->bge_std, rxidx);
2961 bge_setup_rxdesc_std(sc, rxidx);
2965 m = sc->bge_cdata.bge_rx_std_chain[rxidx].bge_mbuf;
2966 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2968 bge_setup_rxdesc_std(sc, sc->bge_std);
2971 if (bge_newbuf_std(sc, sc->bge_std, 0)) {
2973 bge_setup_rxdesc_std(sc, sc->bge_std);
2979 #if !defined(__i386__) && !defined(__x86_64__)
2981 * The x86 allows unaligned accesses, but for other
2982 * platforms we must make sure the payload is aligned.
2984 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) {
2985 bcopy(m->m_data, m->m_data + ETHER_ALIGN,
2987 m->m_data += ETHER_ALIGN;
2990 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2991 m->m_pkthdr.rcvif = ifp;
2993 if (ifp->if_capenable & IFCAP_RXCSUM) {
2994 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2995 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2996 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
2997 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2999 if ((cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) &&
3000 m->m_pkthdr.len >= BGE_MIN_FRAMELEN) {
3001 m->m_pkthdr.csum_data =
3002 cur_rx->bge_tcp_udp_csum;
3003 m->m_pkthdr.csum_flags |=
3004 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
3009 * If we received a packet with a vlan tag, pass it
3010 * to vlan_input() instead of ether_input().
3013 m->m_flags |= M_VLANTAG;
3014 m->m_pkthdr.ether_vlantag = vlan_tag;
3016 ifp->if_input(ifp, m);
3019 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
3021 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
3023 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
3027 bge_txeof(struct bge_softc *sc, uint16_t tx_cons)
3031 ifp = &sc->arpcom.ac_if;
3034 * Go through our tx ring and free mbufs for those
3035 * frames that have been sent.
3037 while (sc->bge_tx_saved_considx != tx_cons) {
3040 idx = sc->bge_tx_saved_considx;
3041 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) {
3043 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
3044 sc->bge_cdata.bge_tx_dmamap[idx]);
3045 m_freem(sc->bge_cdata.bge_tx_chain[idx]);
3046 sc->bge_cdata.bge_tx_chain[idx] = NULL;
3049 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
3053 if ((BGE_TX_RING_CNT - sc->bge_txcnt) >=
3054 (sc->bge_txrsvd + sc->bge_txspare))
3055 ifq_clr_oactive(&ifp->if_snd);
3057 if (sc->bge_txcnt == 0)
3060 if (!ifq_is_empty(&ifp->if_snd))
3064 #ifdef IFPOLL_ENABLE
3067 bge_npoll_compat(struct ifnet *ifp, void *arg __unused, int cycles)
3069 struct bge_softc *sc = ifp->if_softc;
3070 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3071 uint16_t rx_prod, tx_cons;
3073 ASSERT_SERIALIZED(ifp->if_serializer);
3075 if (sc->bge_npoll.ifpc_stcount-- == 0) {
3076 sc->bge_npoll.ifpc_stcount = sc->bge_npoll.ifpc_stfrac;
3078 * Process link state changes.
3083 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
3084 sc->bge_status_tag = sblk->bge_status_tag;
3086 * Use a load fence to ensure that status_tag
3087 * is saved before rx_prod and tx_cons.
3092 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
3093 if (sc->bge_rx_saved_considx != rx_prod)
3094 bge_rxeof(sc, rx_prod, cycles);
3096 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
3097 if (sc->bge_tx_saved_considx != tx_cons)
3098 bge_txeof(sc, tx_cons);
3100 if (sc->bge_flags & BGE_FLAG_STATUS_TAG)
3101 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
3103 if (sc->bge_coal_chg)
3104 bge_coal_change(sc);
3108 bge_npoll(struct ifnet *ifp, struct ifpoll_info *info)
3110 struct bge_softc *sc = ifp->if_softc;
3112 ASSERT_SERIALIZED(ifp->if_serializer);
3115 int cpuid = sc->bge_npoll.ifpc_cpuid;
3117 info->ifpi_rx[cpuid].poll_func = bge_npoll_compat;
3118 info->ifpi_rx[cpuid].arg = NULL;
3119 info->ifpi_rx[cpuid].serializer = ifp->if_serializer;
3121 if (ifp->if_flags & IFF_RUNNING)
3122 bge_disable_intr(sc);
3123 ifq_set_cpuid(&ifp->if_snd, cpuid);
3125 if (ifp->if_flags & IFF_RUNNING)
3126 bge_enable_intr(sc);
3127 ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->bge_irq));
3131 #endif /* IFPOLL_ENABLE */
3134 bge_intr_crippled(void *xsc)
3136 struct bge_softc *sc = xsc;
3137 struct ifnet *ifp = &sc->arpcom.ac_if;
3142 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't
3143 * disable interrupts by writing nonzero like we used to, since with
3144 * our current organization this just gives complications and
3145 * pessimizations for re-enabling interrupts. We used to have races
3146 * instead of the necessary complications. Disabling interrupts
3147 * would just reduce the chance of a status update while we are
3148 * running (by switching to the interrupt-mode coalescence
3149 * parameters), but this chance is already very low so it is more
3150 * efficient to get another interrupt than prevent it.
3152 * We do the ack first to ensure another interrupt if there is a
3153 * status update after the ack. We don't check for the status
3154 * changing later because it is more efficient to get another
3155 * interrupt than prevent it, not quite as above (not checking is
3156 * a smaller optimization than not toggling the interrupt enable,
3157 * since checking doesn't involve PCI accesses and toggling require
3158 * the status check). So toggling would probably be a pessimization
3159 * even with MSI. It would only be needed for using a task queue.
3161 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
3164 * Process link state changes.
3168 if (ifp->if_flags & IFF_RUNNING) {
3169 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3170 uint16_t rx_prod, tx_cons;
3172 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
3173 if (sc->bge_rx_saved_considx != rx_prod)
3174 bge_rxeof(sc, rx_prod, -1);
3176 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
3177 if (sc->bge_tx_saved_considx != tx_cons)
3178 bge_txeof(sc, tx_cons);
3181 if (sc->bge_coal_chg)
3182 bge_coal_change(sc);
3186 bge_intr_legacy(void *xsc)
3188 struct bge_softc *sc = xsc;
3189 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3191 if (sc->bge_status_tag == sblk->bge_status_tag) {
3194 val = pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4);
3195 if (val & BGE_PCISTAT_INTR_NOTACT)
3201 * Interrupt will have to be disabled if tagged status
3202 * is used, else interrupt will always be asserted on
3203 * certain chips (at least on BCM5750 AX/BX).
3205 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
3213 struct bge_softc *sc = xsc;
3215 /* Disable interrupt first */
3216 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
3221 bge_msi_oneshot(void *xsc)
3227 bge_intr(struct bge_softc *sc)
3229 struct ifnet *ifp = &sc->arpcom.ac_if;
3230 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3231 uint16_t rx_prod, tx_cons;
3234 sc->bge_status_tag = sblk->bge_status_tag;
3236 * Use a load fence to ensure that status_tag is saved
3237 * before rx_prod, tx_cons and status.
3241 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
3242 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
3243 status = sblk->bge_status;
3245 if ((status & BGE_STATFLAG_LINKSTATE_CHANGED) || sc->bge_link_evt)
3248 if (ifp->if_flags & IFF_RUNNING) {
3249 if (sc->bge_rx_saved_considx != rx_prod)
3250 bge_rxeof(sc, rx_prod, -1);
3252 if (sc->bge_tx_saved_considx != tx_cons)
3253 bge_txeof(sc, tx_cons);
3256 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
3258 if (sc->bge_coal_chg)
3259 bge_coal_change(sc);
3265 struct bge_softc *sc = xsc;
3266 struct ifnet *ifp = &sc->arpcom.ac_if;
3268 lwkt_serialize_enter(ifp->if_serializer);
3270 if (BGE_IS_5705_PLUS(sc))
3271 bge_stats_update_regs(sc);
3273 bge_stats_update(sc);
3275 if (sc->bge_flags & BGE_FLAG_TBI) {
3277 * Since in TBI mode auto-polling can't be used we should poll
3278 * link status manually. Here we register pending link event
3279 * and trigger interrupt.
3282 if (BGE_IS_CRIPPLED(sc))
3283 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3285 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
3286 } else if (!sc->bge_link) {
3287 mii_tick(device_get_softc(sc->bge_miibus));
3290 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3292 lwkt_serialize_exit(ifp->if_serializer);
3296 bge_stats_update_regs(struct bge_softc *sc)
3298 struct ifnet *ifp = &sc->arpcom.ac_if;
3299 struct bge_mac_stats_regs stats;
3303 s = (uint32_t *)&stats;
3304 for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
3305 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
3309 ifp->if_collisions +=
3310 (stats.dot3StatsSingleCollisionFrames +
3311 stats.dot3StatsMultipleCollisionFrames +
3312 stats.dot3StatsExcessiveCollisions +
3313 stats.dot3StatsLateCollisions) -
3318 bge_stats_update(struct bge_softc *sc)
3320 struct ifnet *ifp = &sc->arpcom.ac_if;
3323 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
3325 #define READ_STAT(sc, stats, stat) \
3326 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
3328 ifp->if_collisions +=
3329 (READ_STAT(sc, stats,
3330 txstats.dot3StatsSingleCollisionFrames.bge_addr_lo) +
3331 READ_STAT(sc, stats,
3332 txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo) +
3333 READ_STAT(sc, stats,
3334 txstats.dot3StatsExcessiveCollisions.bge_addr_lo) +
3335 READ_STAT(sc, stats,
3336 txstats.dot3StatsLateCollisions.bge_addr_lo)) -
3342 ifp->if_collisions +=
3343 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames +
3344 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames +
3345 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions +
3346 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) -
3352 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
3353 * pointers to descriptors.
3356 bge_encap(struct bge_softc *sc, struct mbuf **m_head0, uint32_t *txidx,
3359 struct bge_tx_bd *d = NULL, *last_d;
3360 uint16_t csum_flags = 0, mss = 0;
3361 bus_dma_segment_t segs[BGE_NSEG_NEW];
3363 int error, maxsegs, nsegs, idx, i;
3364 struct mbuf *m_head = *m_head0, *m_new;
3366 if (m_head->m_pkthdr.csum_flags & CSUM_TSO) {
3367 error = bge_setup_tso(sc, m_head0, &mss, &csum_flags);
3371 } else if (m_head->m_pkthdr.csum_flags & BGE_CSUM_FEATURES) {
3372 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
3373 csum_flags |= BGE_TXBDFLAG_IP_CSUM;
3374 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
3375 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
3376 if (m_head->m_flags & M_LASTFRAG)
3377 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
3378 else if (m_head->m_flags & M_FRAG)
3379 csum_flags |= BGE_TXBDFLAG_IP_FRAG;
3383 map = sc->bge_cdata.bge_tx_dmamap[idx];
3385 maxsegs = (BGE_TX_RING_CNT - sc->bge_txcnt) - sc->bge_txrsvd;
3386 KASSERT(maxsegs >= sc->bge_txspare,
3387 ("not enough segments %d", maxsegs));
3389 if (maxsegs > BGE_NSEG_NEW)
3390 maxsegs = BGE_NSEG_NEW;
3393 * Pad outbound frame to BGE_MIN_FRAMELEN for an unusual reason.
3394 * The bge hardware will pad out Tx runts to BGE_MIN_FRAMELEN,
3395 * but when such padded frames employ the bge IP/TCP checksum
3396 * offload, the hardware checksum assist gives incorrect results
3397 * (possibly from incorporating its own padding into the UDP/TCP
3398 * checksum; who knows). If we pad such runts with zeros, the
3399 * onboard checksum comes out correct.
3401 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
3402 m_head->m_pkthdr.len < BGE_MIN_FRAMELEN) {
3403 error = m_devpad(m_head, BGE_MIN_FRAMELEN);
3408 if ((sc->bge_flags & BGE_FLAG_SHORTDMA) && m_head->m_next != NULL) {
3409 m_new = bge_defrag_shortdma(m_head);
3410 if (m_new == NULL) {
3414 *m_head0 = m_head = m_new;
3416 if ((m_head->m_pkthdr.csum_flags & CSUM_TSO) == 0 &&
3417 sc->bge_force_defrag && (sc->bge_flags & BGE_FLAG_PCIE) &&
3418 m_head->m_next != NULL) {
3420 * Forcefully defragment mbuf chain to overcome hardware
3421 * limitation which only support a single outstanding
3422 * DMA read operation. If it fails, keep moving on using
3423 * the original mbuf chain.
3425 m_new = m_defrag(m_head, MB_DONTWAIT);
3427 *m_head0 = m_head = m_new;
3430 error = bus_dmamap_load_mbuf_defrag(sc->bge_cdata.bge_tx_mtag, map,
3431 m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
3434 *segs_used += nsegs;
3437 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE);
3439 for (i = 0; ; i++) {
3440 d = &sc->bge_ldata.bge_tx_ring[idx];
3442 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
3443 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
3444 d->bge_len = segs[i].ds_len;
3445 d->bge_flags = csum_flags;
3450 BGE_INC(idx, BGE_TX_RING_CNT);
3454 /* Set vlan tag to the first segment of the packet. */
3455 d = &sc->bge_ldata.bge_tx_ring[*txidx];
3456 if (m_head->m_flags & M_VLANTAG) {
3457 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
3458 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
3460 d->bge_vlan_tag = 0;
3463 /* Mark the last segment as end of packet... */
3464 last_d->bge_flags |= BGE_TXBDFLAG_END;
3467 * Insure that the map for this transmission is placed at
3468 * the array index of the last descriptor in this chain.
3470 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx];
3471 sc->bge_cdata.bge_tx_dmamap[idx] = map;
3472 sc->bge_cdata.bge_tx_chain[idx] = m_head;
3473 sc->bge_txcnt += nsegs;
3475 BGE_INC(idx, BGE_TX_RING_CNT);
3486 bge_xmit(struct bge_softc *sc, uint32_t prodidx)
3489 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3490 /* 5700 b2 errata */
3491 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
3492 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3496 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
3497 * to the mbuf data regions directly in the transmit descriptors.
3500 bge_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
3502 struct bge_softc *sc = ifp->if_softc;
3503 struct mbuf *m_head = NULL;
3507 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
3509 if ((ifp->if_flags & IFF_RUNNING) == 0 || ifq_is_oactive(&ifp->if_snd))
3512 prodidx = sc->bge_tx_prodidx;
3514 while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
3515 m_head = ifq_dequeue(&ifp->if_snd, NULL);
3521 * The code inside the if() block is never reached since we
3522 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
3523 * requests to checksum TCP/UDP in a fragmented packet.
3526 * safety overkill. If this is a fragmented packet chain
3527 * with delayed TCP/UDP checksums, then only encapsulate
3528 * it if we have enough descriptors to handle the entire
3530 * (paranoia -- may not actually be needed)
3532 if ((m_head->m_flags & M_FIRSTFRAG) &&
3533 (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
3534 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3535 m_head->m_pkthdr.csum_data + sc->bge_txrsvd) {
3536 ifq_set_oactive(&ifp->if_snd);
3537 ifq_prepend(&ifp->if_snd, m_head);
3543 * Sanity check: avoid coming within bge_txrsvd
3544 * descriptors of the end of the ring. Also make
3545 * sure there are bge_txspare descriptors for
3546 * jumbo buffers' defragmentation.
3548 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3549 (sc->bge_txrsvd + sc->bge_txspare)) {
3550 ifq_set_oactive(&ifp->if_snd);
3551 ifq_prepend(&ifp->if_snd, m_head);
3556 * Pack the data into the transmit ring. If we
3557 * don't have room, set the OACTIVE flag and wait
3558 * for the NIC to drain the ring.
3560 if (bge_encap(sc, &m_head, &prodidx, &nsegs)) {
3561 ifq_set_oactive(&ifp->if_snd);
3566 if (nsegs >= sc->bge_tx_wreg) {
3567 bge_xmit(sc, prodidx);
3571 ETHER_BPF_MTAP(ifp, m_head);
3574 * Set a timeout in case the chip goes out to lunch.
3580 bge_xmit(sc, prodidx);
3581 sc->bge_tx_prodidx = prodidx;
3587 struct bge_softc *sc = xsc;
3588 struct ifnet *ifp = &sc->arpcom.ac_if;
3592 ASSERT_SERIALIZED(ifp->if_serializer);
3594 /* Cancel pending I/O and flush buffers. */
3600 * Init the various state machines, ring
3601 * control blocks and firmware.
3603 if (bge_blockinit(sc)) {
3604 if_printf(ifp, "initialization failure\n");
3610 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
3611 ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
3613 /* Load our MAC address. */
3614 m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
3615 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
3616 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
3618 /* Enable or disable promiscuous mode as needed. */
3621 /* Program multicast filter. */
3625 if (bge_init_rx_ring_std(sc)) {
3626 if_printf(ifp, "RX ring initialization failed\n");
3632 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
3633 * memory to insure that the chip has in fact read the first
3634 * entry of the ring.
3636 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
3638 for (i = 0; i < 10; i++) {
3640 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
3641 if (v == (MCLBYTES - ETHER_ALIGN))
3645 if_printf(ifp, "5705 A0 chip failed to load RX ring\n");
3648 /* Init jumbo RX ring. */
3649 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3650 if (bge_init_rx_ring_jumbo(sc)) {
3651 if_printf(ifp, "Jumbo RX ring initialization failed\n");
3657 /* Init our RX return ring index */
3658 sc->bge_rx_saved_considx = 0;
3661 bge_init_tx_ring(sc);
3663 /* Enable TX MAC state machine lockup fix. */
3664 mode = CSR_READ_4(sc, BGE_TX_MODE);
3665 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906)
3666 mode |= BGE_TXMODE_MBUF_LOCKUP_FIX;
3667 /* Turn on transmitter */
3668 CSR_WRITE_4(sc, BGE_TX_MODE, mode | BGE_TXMODE_ENABLE);
3670 /* Turn on receiver */
3671 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3674 * Set the number of good frames to receive after RX MBUF
3675 * Low Watermark has been reached. After the RX MAC receives
3676 * this number of frames, it will drop subsequent incoming
3677 * frames until the MBUF High Watermark is reached.
3679 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2);
3681 if (sc->bge_irq_type == PCI_INTR_TYPE_MSI) {
3683 if_printf(ifp, "MSI_MODE: %#x\n",
3684 CSR_READ_4(sc, BGE_MSI_MODE));
3689 * Linux driver turns it on for all chips supporting MSI?!
3691 if (sc->bge_flags & BGE_FLAG_ONESHOT_MSI) {
3694 * According to 5722-PG101-R,
3695 * BGE_PCIE_TRANSACT_ONESHOT_MSI applies only to
3698 BGE_SETBIT(sc, BGE_PCIE_TRANSACT,
3699 BGE_PCIE_TRANSACT_ONESHOT_MSI);
3703 /* Tell firmware we're alive. */
3704 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3706 /* Enable host interrupts if polling(4) is not enabled. */
3707 PCI_SETBIT(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA, 4);
3708 #ifdef IFPOLL_ENABLE
3709 if (ifp->if_flags & IFF_NPOLLING)
3710 bge_disable_intr(sc);
3713 bge_enable_intr(sc);
3715 bge_ifmedia_upd(ifp);
3717 ifp->if_flags |= IFF_RUNNING;
3718 ifq_clr_oactive(&ifp->if_snd);
3720 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3724 * Set media options.
3727 bge_ifmedia_upd(struct ifnet *ifp)
3729 struct bge_softc *sc = ifp->if_softc;
3731 /* If this is a 1000baseX NIC, enable the TBI port. */
3732 if (sc->bge_flags & BGE_FLAG_TBI) {
3733 struct ifmedia *ifm = &sc->bge_ifmedia;
3735 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3738 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3741 * The BCM5704 ASIC appears to have a special
3742 * mechanism for programming the autoneg
3743 * advertisement registers in TBI mode.
3745 if (!bge_fake_autoneg &&
3746 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3749 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
3750 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
3751 sgdig |= BGE_SGDIGCFG_AUTO |
3752 BGE_SGDIGCFG_PAUSE_CAP |
3753 BGE_SGDIGCFG_ASYM_PAUSE;
3754 CSR_WRITE_4(sc, BGE_SGDIG_CFG,
3755 sgdig | BGE_SGDIGCFG_SEND);
3757 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
3761 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3762 BGE_CLRBIT(sc, BGE_MAC_MODE,
3763 BGE_MACMODE_HALF_DUPLEX);
3765 BGE_SETBIT(sc, BGE_MAC_MODE,
3766 BGE_MACMODE_HALF_DUPLEX);
3773 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3777 if (mii->mii_instance) {
3778 struct mii_softc *miisc;
3780 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3781 mii_phy_reset(miisc);
3786 * Force an interrupt so that we will call bge_link_upd
3787 * if needed and clear any pending link state attention.
3788 * Without this we are not getting any further interrupts
3789 * for link state changes and thus will not UP the link and
3790 * not be able to send in bge_start. The only way to get
3791 * things working was to receive a packet and get an RX
3794 * bge_tick should help for fiber cards and we might not
3795 * need to do this here if BGE_FLAG_TBI is set but as
3796 * we poll for fiber anyway it should not harm.
3798 if (BGE_IS_CRIPPLED(sc))
3799 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3801 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
3807 * Report current media status.
3810 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3812 struct bge_softc *sc = ifp->if_softc;
3814 if (sc->bge_flags & BGE_FLAG_TBI) {
3815 ifmr->ifm_status = IFM_AVALID;
3816 ifmr->ifm_active = IFM_ETHER;
3817 if (CSR_READ_4(sc, BGE_MAC_STS) &
3818 BGE_MACSTAT_TBI_PCS_SYNCHED) {
3819 ifmr->ifm_status |= IFM_ACTIVE;
3821 ifmr->ifm_active |= IFM_NONE;
3825 ifmr->ifm_active |= IFM_1000_SX;
3826 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3827 ifmr->ifm_active |= IFM_HDX;
3829 ifmr->ifm_active |= IFM_FDX;
3831 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3834 ifmr->ifm_active = mii->mii_media_active;
3835 ifmr->ifm_status = mii->mii_media_status;
3840 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3842 struct bge_softc *sc = ifp->if_softc;
3843 struct ifreq *ifr = (struct ifreq *)data;
3844 int mask, error = 0;
3846 ASSERT_SERIALIZED(ifp->if_serializer);
3850 if ((!BGE_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3851 (BGE_IS_JUMBO_CAPABLE(sc) &&
3852 ifr->ifr_mtu > BGE_JUMBO_MTU)) {
3854 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3855 ifp->if_mtu = ifr->ifr_mtu;
3856 if (ifp->if_flags & IFF_RUNNING)
3861 if (ifp->if_flags & IFF_UP) {
3862 if (ifp->if_flags & IFF_RUNNING) {
3863 mask = ifp->if_flags ^ sc->bge_if_flags;
3866 * If only the state of the PROMISC flag
3867 * changed, then just use the 'set promisc
3868 * mode' command instead of reinitializing
3869 * the entire NIC. Doing a full re-init
3870 * means reloading the firmware and waiting
3871 * for it to start up, which may take a
3872 * second or two. Similarly for ALLMULTI.
3874 if (mask & IFF_PROMISC)
3876 if (mask & IFF_ALLMULTI)
3881 } else if (ifp->if_flags & IFF_RUNNING) {
3884 sc->bge_if_flags = ifp->if_flags;
3888 if (ifp->if_flags & IFF_RUNNING)
3893 if (sc->bge_flags & BGE_FLAG_TBI) {
3894 error = ifmedia_ioctl(ifp, ifr,
3895 &sc->bge_ifmedia, command);
3897 struct mii_data *mii;
3899 mii = device_get_softc(sc->bge_miibus);
3900 error = ifmedia_ioctl(ifp, ifr,
3901 &mii->mii_media, command);
3905 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3906 if (mask & IFCAP_HWCSUM) {
3907 ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3908 if (ifp->if_capenable & IFCAP_TXCSUM)
3909 ifp->if_hwassist |= BGE_CSUM_FEATURES;
3911 ifp->if_hwassist &= ~BGE_CSUM_FEATURES;
3913 if (mask & IFCAP_TSO) {
3914 ifp->if_capenable ^= IFCAP_TSO;
3915 if (ifp->if_capenable & IFCAP_TSO)
3916 ifp->if_hwassist |= CSUM_TSO;
3918 ifp->if_hwassist &= ~CSUM_TSO;
3922 error = ether_ioctl(ifp, command, data);
3929 bge_watchdog(struct ifnet *ifp)
3931 struct bge_softc *sc = ifp->if_softc;
3933 if_printf(ifp, "watchdog timeout -- resetting\n");
3939 if (!ifq_is_empty(&ifp->if_snd))
3944 * Stop the adapter and free any mbufs allocated to the
3948 bge_stop(struct bge_softc *sc)
3950 struct ifnet *ifp = &sc->arpcom.ac_if;
3952 ASSERT_SERIALIZED(ifp->if_serializer);
3954 callout_stop(&sc->bge_stat_timer);
3957 * Disable all of the receiver blocks
3959 bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3960 bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3961 bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3962 if (BGE_IS_5700_FAMILY(sc))
3963 bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
3964 bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3965 bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3966 bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3969 * Disable all of the transmit blocks
3971 bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3972 bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3973 bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3974 bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3975 bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3976 if (BGE_IS_5700_FAMILY(sc))
3977 bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
3978 bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3981 * Shut down all of the memory managers and related
3984 bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3985 bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3986 if (BGE_IS_5700_FAMILY(sc))
3987 bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
3988 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3989 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3990 if (!BGE_IS_5705_PLUS(sc)) {
3991 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
3992 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
3995 /* Disable host interrupts. */
3996 bge_disable_intr(sc);
3999 * Tell firmware we're shutting down.
4001 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
4003 /* Free the RX lists. */
4004 bge_free_rx_ring_std(sc);
4006 /* Free jumbo RX list. */
4007 if (BGE_IS_JUMBO_CAPABLE(sc))
4008 bge_free_rx_ring_jumbo(sc);
4010 /* Free TX buffers. */
4011 bge_free_tx_ring(sc);
4013 sc->bge_status_tag = 0;
4015 sc->bge_coal_chg = 0;
4017 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
4019 ifp->if_flags &= ~IFF_RUNNING;
4020 ifq_clr_oactive(&ifp->if_snd);
4025 * Stop all chip I/O so that the kernel's probe routines don't
4026 * get confused by errant DMAs when rebooting.
4029 bge_shutdown(device_t dev)
4031 struct bge_softc *sc = device_get_softc(dev);
4032 struct ifnet *ifp = &sc->arpcom.ac_if;
4034 lwkt_serialize_enter(ifp->if_serializer);
4037 lwkt_serialize_exit(ifp->if_serializer);
4041 bge_suspend(device_t dev)
4043 struct bge_softc *sc = device_get_softc(dev);
4044 struct ifnet *ifp = &sc->arpcom.ac_if;
4046 lwkt_serialize_enter(ifp->if_serializer);
4048 lwkt_serialize_exit(ifp->if_serializer);
4054 bge_resume(device_t dev)
4056 struct bge_softc *sc = device_get_softc(dev);
4057 struct ifnet *ifp = &sc->arpcom.ac_if;
4059 lwkt_serialize_enter(ifp->if_serializer);
4061 if (ifp->if_flags & IFF_UP) {
4064 if (!ifq_is_empty(&ifp->if_snd))
4068 lwkt_serialize_exit(ifp->if_serializer);
4074 bge_setpromisc(struct bge_softc *sc)
4076 struct ifnet *ifp = &sc->arpcom.ac_if;
4078 if (ifp->if_flags & IFF_PROMISC)
4079 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
4081 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
4085 bge_dma_free(struct bge_softc *sc)
4089 /* Destroy RX mbuf DMA stuffs. */
4090 if (sc->bge_cdata.bge_rx_mtag != NULL) {
4091 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
4092 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
4093 sc->bge_cdata.bge_rx_std_dmamap[i]);
4095 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
4096 sc->bge_cdata.bge_rx_tmpmap);
4097 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
4100 /* Destroy TX mbuf DMA stuffs. */
4101 if (sc->bge_cdata.bge_tx_mtag != NULL) {
4102 for (i = 0; i < BGE_TX_RING_CNT; i++) {
4103 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
4104 sc->bge_cdata.bge_tx_dmamap[i]);
4106 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
4109 /* Destroy standard RX ring */
4110 bge_dma_block_free(sc->bge_cdata.bge_rx_std_ring_tag,
4111 sc->bge_cdata.bge_rx_std_ring_map,
4112 sc->bge_ldata.bge_rx_std_ring);
4114 if (BGE_IS_JUMBO_CAPABLE(sc))
4115 bge_free_jumbo_mem(sc);
4117 /* Destroy RX return ring */
4118 bge_dma_block_free(sc->bge_cdata.bge_rx_return_ring_tag,
4119 sc->bge_cdata.bge_rx_return_ring_map,
4120 sc->bge_ldata.bge_rx_return_ring);
4122 /* Destroy TX ring */
4123 bge_dma_block_free(sc->bge_cdata.bge_tx_ring_tag,
4124 sc->bge_cdata.bge_tx_ring_map,
4125 sc->bge_ldata.bge_tx_ring);
4127 /* Destroy status block */
4128 bge_dma_block_free(sc->bge_cdata.bge_status_tag,
4129 sc->bge_cdata.bge_status_map,
4130 sc->bge_ldata.bge_status_block);
4132 /* Destroy statistics block */
4133 bge_dma_block_free(sc->bge_cdata.bge_stats_tag,
4134 sc->bge_cdata.bge_stats_map,
4135 sc->bge_ldata.bge_stats);
4137 /* Destroy the parent tag */
4138 if (sc->bge_cdata.bge_parent_tag != NULL)
4139 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag);
4143 bge_dma_alloc(struct bge_softc *sc)
4145 struct ifnet *ifp = &sc->arpcom.ac_if;
4150 lowaddr = BUS_SPACE_MAXADDR;
4151 if (sc->bge_flags & BGE_FLAG_MAXADDR_40BIT)
4152 lowaddr = BGE_DMA_MAXADDR_40BIT;
4155 * Allocate the parent bus DMA tag appropriate for PCI.
4157 * All of the NetExtreme/NetLink controllers have 4GB boundary
4159 * Whenever an address crosses a multiple of the 4GB boundary
4160 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
4161 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
4162 * state machine will lockup and cause the device to hang.
4164 error = bus_dma_tag_create(NULL, 1, BGE_DMA_BOUNDARY_4G,
4165 lowaddr, BUS_SPACE_MAXADDR,
4167 BUS_SPACE_MAXSIZE_32BIT, 0,
4168 BUS_SPACE_MAXSIZE_32BIT,
4169 0, &sc->bge_cdata.bge_parent_tag);
4171 if_printf(ifp, "could not allocate parent dma tag\n");
4176 * Create DMA tag and maps for RX mbufs.
4178 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
4179 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
4180 NULL, NULL, MCLBYTES, 1, MCLBYTES,
4181 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
4182 &sc->bge_cdata.bge_rx_mtag);
4184 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
4188 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
4189 BUS_DMA_WAITOK, &sc->bge_cdata.bge_rx_tmpmap);
4191 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
4192 sc->bge_cdata.bge_rx_mtag = NULL;
4196 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
4197 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
4199 &sc->bge_cdata.bge_rx_std_dmamap[i]);
4203 for (j = 0; j < i; ++j) {
4204 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
4205 sc->bge_cdata.bge_rx_std_dmamap[j]);
4207 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
4208 sc->bge_cdata.bge_rx_mtag = NULL;
4210 if_printf(ifp, "could not create DMA map for RX\n");
4216 * Create DMA tag and maps for TX mbufs.
4218 if (sc->bge_flags & BGE_FLAG_TSO)
4219 txmaxsz = IP_MAXPACKET + sizeof(struct ether_vlan_header);
4221 txmaxsz = BGE_JUMBO_FRAMELEN;
4222 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
4223 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
4225 txmaxsz, BGE_NSEG_NEW, PAGE_SIZE,
4226 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
4228 &sc->bge_cdata.bge_tx_mtag);
4230 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
4234 for (i = 0; i < BGE_TX_RING_CNT; i++) {
4235 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag,
4236 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
4237 &sc->bge_cdata.bge_tx_dmamap[i]);
4241 for (j = 0; j < i; ++j) {
4242 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
4243 sc->bge_cdata.bge_tx_dmamap[j]);
4245 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
4246 sc->bge_cdata.bge_tx_mtag = NULL;
4248 if_printf(ifp, "could not create DMA map for TX\n");
4254 * Create DMA stuffs for standard RX ring.
4256 error = bge_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
4257 &sc->bge_cdata.bge_rx_std_ring_tag,
4258 &sc->bge_cdata.bge_rx_std_ring_map,
4259 (void *)&sc->bge_ldata.bge_rx_std_ring,
4260 &sc->bge_ldata.bge_rx_std_ring_paddr);
4262 if_printf(ifp, "could not create std RX ring\n");
4267 * Create jumbo buffer pool.
4269 if (BGE_IS_JUMBO_CAPABLE(sc)) {
4270 error = bge_alloc_jumbo_mem(sc);
4272 if_printf(ifp, "could not create jumbo buffer pool\n");
4278 * Create DMA stuffs for RX return ring.
4280 error = bge_dma_block_alloc(sc,
4281 BGE_RX_RTN_RING_SZ(sc->bge_return_ring_cnt),
4282 &sc->bge_cdata.bge_rx_return_ring_tag,
4283 &sc->bge_cdata.bge_rx_return_ring_map,
4284 (void *)&sc->bge_ldata.bge_rx_return_ring,
4285 &sc->bge_ldata.bge_rx_return_ring_paddr);
4287 if_printf(ifp, "could not create RX ret ring\n");
4292 * Create DMA stuffs for TX ring.
4294 error = bge_dma_block_alloc(sc, BGE_TX_RING_SZ,
4295 &sc->bge_cdata.bge_tx_ring_tag,
4296 &sc->bge_cdata.bge_tx_ring_map,
4297 (void *)&sc->bge_ldata.bge_tx_ring,
4298 &sc->bge_ldata.bge_tx_ring_paddr);
4300 if_printf(ifp, "could not create TX ring\n");
4305 * Create DMA stuffs for status block.
4307 error = bge_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
4308 &sc->bge_cdata.bge_status_tag,
4309 &sc->bge_cdata.bge_status_map,
4310 (void *)&sc->bge_ldata.bge_status_block,
4311 &sc->bge_ldata.bge_status_block_paddr);
4313 if_printf(ifp, "could not create status block\n");
4318 * Create DMA stuffs for statistics block.
4320 error = bge_dma_block_alloc(sc, BGE_STATS_SZ,
4321 &sc->bge_cdata.bge_stats_tag,
4322 &sc->bge_cdata.bge_stats_map,
4323 (void *)&sc->bge_ldata.bge_stats,
4324 &sc->bge_ldata.bge_stats_paddr);
4326 if_printf(ifp, "could not create stats block\n");
4333 bge_dma_block_alloc(struct bge_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
4334 bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
4339 error = bus_dmamem_coherent(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0,
4340 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
4341 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
4345 *tag = dmem.dmem_tag;
4346 *map = dmem.dmem_map;
4347 *addr = dmem.dmem_addr;
4348 *paddr = dmem.dmem_busaddr;
4354 bge_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
4357 bus_dmamap_unload(tag, map);
4358 bus_dmamem_free(tag, addr, map);
4359 bus_dma_tag_destroy(tag);
4364 * Grrr. The link status word in the status block does
4365 * not work correctly on the BCM5700 rev AX and BX chips,
4366 * according to all available information. Hence, we have
4367 * to enable MII interrupts in order to properly obtain
4368 * async link changes. Unfortunately, this also means that
4369 * we have to read the MAC status register to detect link
4370 * changes, thereby adding an additional register access to
4371 * the interrupt handler.
4373 * XXX: perhaps link state detection procedure used for
4374 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions.
4377 bge_bcm5700_link_upd(struct bge_softc *sc, uint32_t status __unused)
4379 struct ifnet *ifp = &sc->arpcom.ac_if;
4380 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4384 if (!sc->bge_link &&
4385 (mii->mii_media_status & IFM_ACTIVE) &&
4386 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
4389 if_printf(ifp, "link UP\n");
4390 } else if (sc->bge_link &&
4391 (!(mii->mii_media_status & IFM_ACTIVE) ||
4392 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
4395 if_printf(ifp, "link DOWN\n");
4398 /* Clear the interrupt. */
4399 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT);
4400 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR);
4401 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS);
4405 bge_tbi_link_upd(struct bge_softc *sc, uint32_t status)
4407 struct ifnet *ifp = &sc->arpcom.ac_if;
4409 #define PCS_ENCODE_ERR (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
4412 * Sometimes PCS encoding errors are detected in
4413 * TBI mode (on fiber NICs), and for some reason
4414 * the chip will signal them as link changes.
4415 * If we get a link change event, but the 'PCS
4416 * encoding error' bit in the MAC status register
4417 * is set, don't bother doing a link check.
4418 * This avoids spurious "gigabit link up" messages
4419 * that sometimes appear on fiber NICs during
4420 * periods of heavy traffic.
4422 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
4423 if (!sc->bge_link) {
4425 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
4426 BGE_CLRBIT(sc, BGE_MAC_MODE,
4427 BGE_MACMODE_TBI_SEND_CFGS);
4429 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
4432 if_printf(ifp, "link UP\n");
4434 ifp->if_link_state = LINK_STATE_UP;
4435 if_link_state_change(ifp);
4437 } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
4442 if_printf(ifp, "link DOWN\n");
4444 ifp->if_link_state = LINK_STATE_DOWN;
4445 if_link_state_change(ifp);
4449 #undef PCS_ENCODE_ERR
4451 /* Clear the attention. */
4452 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4453 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4454 BGE_MACSTAT_LINK_CHANGED);
4458 bge_copper_link_upd(struct bge_softc *sc, uint32_t status __unused)
4460 struct ifnet *ifp = &sc->arpcom.ac_if;
4461 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4464 bge_miibus_statchg(sc->bge_dev);
4468 if_printf(ifp, "link UP\n");
4470 if_printf(ifp, "link DOWN\n");
4473 /* Clear the attention. */
4474 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4475 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4476 BGE_MACSTAT_LINK_CHANGED);
4480 bge_autopoll_link_upd(struct bge_softc *sc, uint32_t status __unused)
4482 struct ifnet *ifp = &sc->arpcom.ac_if;
4483 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4487 if (!sc->bge_link &&
4488 (mii->mii_media_status & IFM_ACTIVE) &&
4489 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
4492 if_printf(ifp, "link UP\n");
4493 } else if (sc->bge_link &&
4494 (!(mii->mii_media_status & IFM_ACTIVE) ||
4495 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
4498 if_printf(ifp, "link DOWN\n");
4501 /* Clear the attention. */
4502 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4503 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4504 BGE_MACSTAT_LINK_CHANGED);
4508 bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
4510 struct bge_softc *sc = arg1;
4512 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4513 &sc->bge_rx_coal_ticks,
4514 BGE_RX_COAL_TICKS_MIN, BGE_RX_COAL_TICKS_MAX,
4515 BGE_RX_COAL_TICKS_CHG);
4519 bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
4521 struct bge_softc *sc = arg1;
4523 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4524 &sc->bge_tx_coal_ticks,
4525 BGE_TX_COAL_TICKS_MIN, BGE_TX_COAL_TICKS_MAX,
4526 BGE_TX_COAL_TICKS_CHG);
4530 bge_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS)
4532 struct bge_softc *sc = arg1;
4534 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4535 &sc->bge_rx_coal_bds,
4536 BGE_RX_COAL_BDS_MIN, BGE_RX_COAL_BDS_MAX,
4537 BGE_RX_COAL_BDS_CHG);
4541 bge_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS)
4543 struct bge_softc *sc = arg1;
4545 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4546 &sc->bge_tx_coal_bds,
4547 BGE_TX_COAL_BDS_MIN, BGE_TX_COAL_BDS_MAX,
4548 BGE_TX_COAL_BDS_CHG);
4552 bge_sysctl_rx_coal_ticks_int(SYSCTL_HANDLER_ARGS)
4554 struct bge_softc *sc = arg1;
4556 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4557 &sc->bge_rx_coal_ticks_int,
4558 BGE_RX_COAL_TICKS_MIN, BGE_RX_COAL_TICKS_MAX,
4559 BGE_RX_COAL_TICKS_INT_CHG);
4563 bge_sysctl_tx_coal_ticks_int(SYSCTL_HANDLER_ARGS)
4565 struct bge_softc *sc = arg1;
4567 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4568 &sc->bge_tx_coal_ticks_int,
4569 BGE_TX_COAL_TICKS_MIN, BGE_TX_COAL_TICKS_MAX,
4570 BGE_TX_COAL_TICKS_INT_CHG);
4574 bge_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS)
4576 struct bge_softc *sc = arg1;
4578 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4579 &sc->bge_rx_coal_bds_int,
4580 BGE_RX_COAL_BDS_MIN, BGE_RX_COAL_BDS_MAX,
4581 BGE_RX_COAL_BDS_INT_CHG);
4585 bge_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS)
4587 struct bge_softc *sc = arg1;
4589 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4590 &sc->bge_tx_coal_bds_int,
4591 BGE_TX_COAL_BDS_MIN, BGE_TX_COAL_BDS_MAX,
4592 BGE_TX_COAL_BDS_INT_CHG);
4596 bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
4597 int coal_min, int coal_max, uint32_t coal_chg_mask)
4599 struct bge_softc *sc = arg1;
4600 struct ifnet *ifp = &sc->arpcom.ac_if;
4603 lwkt_serialize_enter(ifp->if_serializer);
4606 error = sysctl_handle_int(oidp, &v, 0, req);
4607 if (!error && req->newptr != NULL) {
4608 if (v < coal_min || v > coal_max) {
4612 sc->bge_coal_chg |= coal_chg_mask;
4616 lwkt_serialize_exit(ifp->if_serializer);
4621 bge_coal_change(struct bge_softc *sc)
4623 struct ifnet *ifp = &sc->arpcom.ac_if;
4626 ASSERT_SERIALIZED(ifp->if_serializer);
4628 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_CHG) {
4629 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
4630 sc->bge_rx_coal_ticks);
4632 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
4635 if_printf(ifp, "rx_coal_ticks -> %u\n",
4636 sc->bge_rx_coal_ticks);
4640 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_CHG) {
4641 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
4642 sc->bge_tx_coal_ticks);
4644 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
4647 if_printf(ifp, "tx_coal_ticks -> %u\n",
4648 sc->bge_tx_coal_ticks);
4652 if (sc->bge_coal_chg & BGE_RX_COAL_BDS_CHG) {
4653 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
4654 sc->bge_rx_coal_bds);
4656 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
4659 if_printf(ifp, "rx_coal_bds -> %u\n",
4660 sc->bge_rx_coal_bds);
4664 if (sc->bge_coal_chg & BGE_TX_COAL_BDS_CHG) {
4665 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
4666 sc->bge_tx_coal_bds);
4668 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
4671 if_printf(ifp, "tx_max_coal_bds -> %u\n",
4672 sc->bge_tx_coal_bds);
4676 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_INT_CHG) {
4677 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT,
4678 sc->bge_rx_coal_ticks_int);
4680 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS_INT);
4683 if_printf(ifp, "rx_coal_ticks_int -> %u\n",
4684 sc->bge_rx_coal_ticks_int);
4688 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_INT_CHG) {
4689 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT,
4690 sc->bge_tx_coal_ticks_int);
4692 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS_INT);
4695 if_printf(ifp, "tx_coal_ticks_int -> %u\n",
4696 sc->bge_tx_coal_ticks_int);
4700 if (sc->bge_coal_chg & BGE_RX_COAL_BDS_INT_CHG) {
4701 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT,
4702 sc->bge_rx_coal_bds_int);
4704 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT);
4707 if_printf(ifp, "rx_coal_bds_int -> %u\n",
4708 sc->bge_rx_coal_bds_int);
4712 if (sc->bge_coal_chg & BGE_TX_COAL_BDS_INT_CHG) {
4713 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT,
4714 sc->bge_tx_coal_bds_int);
4716 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT);
4719 if_printf(ifp, "tx_coal_bds_int -> %u\n",
4720 sc->bge_tx_coal_bds_int);
4724 sc->bge_coal_chg = 0;
4728 bge_enable_intr(struct bge_softc *sc)
4730 struct ifnet *ifp = &sc->arpcom.ac_if;
4732 lwkt_serialize_handler_enable(ifp->if_serializer);
4737 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
4738 if (sc->bge_flags & BGE_FLAG_ONESHOT_MSI) {
4739 /* XXX Linux driver */
4740 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
4744 * Unmask the interrupt when we stop polling.
4746 PCI_CLRBIT(sc->bge_dev, BGE_PCI_MISC_CTL,
4747 BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
4750 * Trigger another interrupt, since above writing
4751 * to interrupt mailbox0 may acknowledge pending
4754 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
4758 bge_disable_intr(struct bge_softc *sc)
4760 struct ifnet *ifp = &sc->arpcom.ac_if;
4763 * Mask the interrupt when we start polling.
4765 PCI_SETBIT(sc->bge_dev, BGE_PCI_MISC_CTL,
4766 BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
4769 * Acknowledge possible asserted interrupt.
4771 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
4773 sc->bge_npoll.ifpc_stcount = 0;
4775 lwkt_serialize_handler_disable(ifp->if_serializer);
4779 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[])
4784 mac_addr = bge_readmem_ind(sc, 0x0c14);
4785 if ((mac_addr >> 16) == 0x484b) {
4786 ether_addr[0] = (uint8_t)(mac_addr >> 8);
4787 ether_addr[1] = (uint8_t)mac_addr;
4788 mac_addr = bge_readmem_ind(sc, 0x0c18);
4789 ether_addr[2] = (uint8_t)(mac_addr >> 24);
4790 ether_addr[3] = (uint8_t)(mac_addr >> 16);
4791 ether_addr[4] = (uint8_t)(mac_addr >> 8);
4792 ether_addr[5] = (uint8_t)mac_addr;
4799 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[])
4801 int mac_offset = BGE_EE_MAC_OFFSET;
4803 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
4804 mac_offset = BGE_EE_MAC_OFFSET_5906;
4806 return bge_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4810 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[])
4812 if (sc->bge_flags & BGE_FLAG_NO_EEPROM)
4815 return bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4820 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[])
4822 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = {
4823 /* NOTE: Order is critical */
4825 bge_get_eaddr_nvram,
4826 bge_get_eaddr_eeprom,
4829 const bge_eaddr_fcn_t *func;
4831 for (func = bge_eaddr_funcs; *func != NULL; ++func) {
4832 if ((*func)(sc, eaddr) == 0)
4835 return (*func == NULL ? ENXIO : 0);
4839 * NOTE: 'm' is not freed upon failure
4842 bge_defrag_shortdma(struct mbuf *m)
4848 * If device receive two back-to-back send BDs with less than
4849 * or equal to 8 total bytes then the device may hang. The two
4850 * back-to-back send BDs must in the same frame for this failure
4851 * to occur. Scan mbuf chains and see whether two back-to-back
4852 * send BDs are there. If this is the case, allocate new mbuf
4853 * and copy the frame to workaround the silicon bug.
4855 for (n = m, found = 0; n != NULL; n = n->m_next) {
4866 n = m_defrag(m, MB_DONTWAIT);
4873 bge_stop_block(struct bge_softc *sc, bus_size_t reg, uint32_t bit)
4877 BGE_CLRBIT(sc, reg, bit);
4878 for (i = 0; i < BGE_TIMEOUT; i++) {
4879 if ((CSR_READ_4(sc, reg) & bit) == 0)
4886 bge_link_poll(struct bge_softc *sc)
4890 status = CSR_READ_4(sc, BGE_MAC_STS);
4891 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
4892 sc->bge_link_evt = 0;
4893 sc->bge_link_upd(sc, status);
4898 bge_enable_msi(struct bge_softc *sc)
4902 msi_mode = CSR_READ_4(sc, BGE_MSI_MODE);
4903 msi_mode |= BGE_MSIMODE_ENABLE;
4904 if (sc->bge_flags & BGE_FLAG_ONESHOT_MSI) {
4906 * According to all of the datasheets that are publicly
4907 * available, bit 5 of the MSI_MODE is defined to be
4908 * "MSI FIFO Underrun Attn" for BCM5755+ and BCM5906, on
4909 * which "oneshot MSI" is enabled. However, it is always
4910 * safe to clear it here.
4912 msi_mode &= ~BGE_MSIMODE_ONESHOT_DISABLE;
4914 CSR_WRITE_4(sc, BGE_MSI_MODE, msi_mode);
4918 bge_setup_tso(struct bge_softc *sc, struct mbuf **mp,
4919 uint16_t *mss0, uint16_t *flags0)
4924 int thoff, iphlen, hoff, hlen;
4925 uint16_t flags, mss;
4928 KASSERT(M_WRITABLE(m), ("TSO mbuf not writable"));
4930 hoff = m->m_pkthdr.csum_lhlen;
4931 iphlen = m->m_pkthdr.csum_iphlen;
4932 thoff = m->m_pkthdr.csum_thlen;
4934 KASSERT(hoff > 0, ("invalid ether header len"));
4935 KASSERT(iphlen > 0, ("invalid ip header len"));
4936 KASSERT(thoff > 0, ("invalid tcp header len"));
4938 if (__predict_false(m->m_len < hoff + iphlen + thoff)) {
4939 m = m_pullup(m, hoff + iphlen + thoff);
4946 ip = mtodoff(m, struct ip *, hoff);
4947 th = mtodoff(m, struct tcphdr *, hoff + iphlen);
4949 mss = m->m_pkthdr.tso_segsz;
4950 flags = BGE_TXBDFLAG_CPU_PRE_DMA | BGE_TXBDFLAG_CPU_POST_DMA;
4952 ip->ip_len = htons(mss + iphlen + thoff);
4955 hlen = (iphlen + thoff) >> 2;
4956 mss |= (hlen << 11);