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_polling.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>
91 #include <net/ethernet.h>
93 #include <net/if_arp.h>
94 #include <net/if_dl.h>
95 #include <net/if_media.h>
96 #include <net/if_types.h>
97 #include <net/ifq_var.h>
98 #include <net/vlan/if_vlan_var.h>
99 #include <net/vlan/if_vlan_ether.h>
101 #include <dev/netif/mii_layer/mii.h>
102 #include <dev/netif/mii_layer/miivar.h>
103 #include <dev/netif/mii_layer/brgphyreg.h>
105 #include <bus/pci/pcidevs.h>
106 #include <bus/pci/pcireg.h>
107 #include <bus/pci/pcivar.h>
109 #include <dev/netif/bge/if_bgereg.h>
111 /* "device miibus" required. See GENERIC if you get errors here. */
112 #include "miibus_if.h"
114 #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP)
115 #define BGE_MIN_FRAME 60
117 static const struct bge_type bge_devs[] = {
118 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C996,
119 "3COM 3C996 Gigabit Ethernet" },
121 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700,
122 "Alteon BCM5700 Gigabit Ethernet" },
123 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5701,
124 "Alteon BCM5701 Gigabit Ethernet" },
126 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000,
127 "Altima AC1000 Gigabit Ethernet" },
128 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1001,
129 "Altima AC1002 Gigabit Ethernet" },
130 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100,
131 "Altima AC9100 Gigabit Ethernet" },
133 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_BCM5701,
134 "Apple BCM5701 Gigabit Ethernet" },
136 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700,
137 "Broadcom BCM5700 Gigabit Ethernet" },
138 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701,
139 "Broadcom BCM5701 Gigabit Ethernet" },
140 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702,
141 "Broadcom BCM5702 Gigabit Ethernet" },
142 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702X,
143 "Broadcom BCM5702X Gigabit Ethernet" },
144 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702_ALT,
145 "Broadcom BCM5702 Gigabit Ethernet" },
146 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703,
147 "Broadcom BCM5703 Gigabit Ethernet" },
148 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703X,
149 "Broadcom BCM5703X Gigabit Ethernet" },
150 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703A3,
151 "Broadcom BCM5703 Gigabit Ethernet" },
152 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704C,
153 "Broadcom BCM5704C Dual Gigabit Ethernet" },
154 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S,
155 "Broadcom BCM5704S Dual Gigabit Ethernet" },
156 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S_ALT,
157 "Broadcom BCM5704S Dual Gigabit Ethernet" },
158 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705,
159 "Broadcom BCM5705 Gigabit Ethernet" },
160 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705F,
161 "Broadcom BCM5705F Gigabit Ethernet" },
162 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705K,
163 "Broadcom BCM5705K Gigabit Ethernet" },
164 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M,
165 "Broadcom BCM5705M Gigabit Ethernet" },
166 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M_ALT,
167 "Broadcom BCM5705M Gigabit Ethernet" },
168 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714,
169 "Broadcom BCM5714C Gigabit Ethernet" },
170 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714S,
171 "Broadcom BCM5714S Gigabit Ethernet" },
172 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715,
173 "Broadcom BCM5715 Gigabit Ethernet" },
174 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715S,
175 "Broadcom BCM5715S Gigabit Ethernet" },
176 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5720,
177 "Broadcom BCM5720 Gigabit Ethernet" },
178 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5721,
179 "Broadcom BCM5721 Gigabit Ethernet" },
180 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5722,
181 "Broadcom BCM5722 Gigabit Ethernet" },
182 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5723,
183 "Broadcom BCM5723 Gigabit Ethernet" },
184 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750,
185 "Broadcom BCM5750 Gigabit Ethernet" },
186 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750M,
187 "Broadcom BCM5750M Gigabit Ethernet" },
188 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751,
189 "Broadcom BCM5751 Gigabit Ethernet" },
190 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751F,
191 "Broadcom BCM5751F Gigabit Ethernet" },
192 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751M,
193 "Broadcom BCM5751M Gigabit Ethernet" },
194 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752,
195 "Broadcom BCM5752 Gigabit Ethernet" },
196 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752M,
197 "Broadcom BCM5752M Gigabit Ethernet" },
198 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753,
199 "Broadcom BCM5753 Gigabit Ethernet" },
200 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753F,
201 "Broadcom BCM5753F Gigabit Ethernet" },
202 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753M,
203 "Broadcom BCM5753M Gigabit Ethernet" },
204 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754,
205 "Broadcom BCM5754 Gigabit Ethernet" },
206 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754M,
207 "Broadcom BCM5754M Gigabit Ethernet" },
208 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755,
209 "Broadcom BCM5755 Gigabit Ethernet" },
210 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755M,
211 "Broadcom BCM5755M Gigabit Ethernet" },
212 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5756,
213 "Broadcom BCM5756 Gigabit Ethernet" },
214 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761,
215 "Broadcom BCM5761 Gigabit Ethernet" },
216 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761E,
217 "Broadcom BCM5761E Gigabit Ethernet" },
218 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761S,
219 "Broadcom BCM5761S Gigabit Ethernet" },
220 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761SE,
221 "Broadcom BCM5761SE Gigabit Ethernet" },
222 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5764,
223 "Broadcom BCM5764 Gigabit Ethernet" },
224 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780,
225 "Broadcom BCM5780 Gigabit Ethernet" },
226 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780S,
227 "Broadcom BCM5780S Gigabit Ethernet" },
228 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5781,
229 "Broadcom BCM5781 Gigabit Ethernet" },
230 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5782,
231 "Broadcom BCM5782 Gigabit Ethernet" },
232 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5784,
233 "Broadcom BCM5784 Gigabit Ethernet" },
234 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785F,
235 "Broadcom BCM5785F Gigabit Ethernet" },
236 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785G,
237 "Broadcom BCM5785G Gigabit Ethernet" },
238 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5786,
239 "Broadcom BCM5786 Gigabit Ethernet" },
240 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787,
241 "Broadcom BCM5787 Gigabit Ethernet" },
242 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787F,
243 "Broadcom BCM5787F Gigabit Ethernet" },
244 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787M,
245 "Broadcom BCM5787M Gigabit Ethernet" },
246 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5788,
247 "Broadcom BCM5788 Gigabit Ethernet" },
248 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5789,
249 "Broadcom BCM5789 Gigabit Ethernet" },
250 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901,
251 "Broadcom BCM5901 Fast Ethernet" },
252 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901A2,
253 "Broadcom BCM5901A2 Fast Ethernet" },
254 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5903M,
255 "Broadcom BCM5903M Fast Ethernet" },
256 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906,
257 "Broadcom BCM5906 Fast Ethernet"},
258 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906M,
259 "Broadcom BCM5906M Fast Ethernet"},
260 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57760,
261 "Broadcom BCM57760 Gigabit Ethernet"},
262 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57780,
263 "Broadcom BCM57780 Gigabit Ethernet"},
264 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57788,
265 "Broadcom BCM57788 Gigabit Ethernet"},
266 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57790,
267 "Broadcom BCM57790 Gigabit Ethernet"},
268 { PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1,
269 "SysKonnect Gigabit Ethernet" },
274 #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO)
275 #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY)
276 #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS)
277 #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY)
278 #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS)
279 #define BGE_IS_5755_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5755_PLUS)
280 #define BGE_IS_5788(sc) ((sc)->bge_flags & BGE_FLAG_5788)
282 #define BGE_IS_CRIPPLED(sc) \
283 (BGE_IS_5788((sc)) || (sc)->bge_asicrev == BGE_ASICREV_BCM5700)
285 typedef int (*bge_eaddr_fcn_t)(struct bge_softc *, uint8_t[]);
287 static int bge_probe(device_t);
288 static int bge_attach(device_t);
289 static int bge_detach(device_t);
290 static void bge_txeof(struct bge_softc *, uint16_t);
291 static void bge_rxeof(struct bge_softc *, uint16_t);
293 static void bge_tick(void *);
294 static void bge_stats_update(struct bge_softc *);
295 static void bge_stats_update_regs(struct bge_softc *);
297 bge_defrag_shortdma(struct mbuf *);
298 static int bge_encap(struct bge_softc *, struct mbuf **, uint32_t *);
300 #ifdef DEVICE_POLLING
301 static void bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
303 static void bge_intr(void *);
304 static void bge_intr_status_tag(void *);
305 static void bge_enable_intr(struct bge_softc *);
306 static void bge_disable_intr(struct bge_softc *);
307 static void bge_start(struct ifnet *);
308 static int bge_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
309 static void bge_init(void *);
310 static void bge_stop(struct bge_softc *);
311 static void bge_watchdog(struct ifnet *);
312 static void bge_shutdown(device_t);
313 static int bge_suspend(device_t);
314 static int bge_resume(device_t);
315 static int bge_ifmedia_upd(struct ifnet *);
316 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
318 static uint8_t bge_nvram_getbyte(struct bge_softc *, int, uint8_t *);
319 static int bge_read_nvram(struct bge_softc *, caddr_t, int, int);
321 static uint8_t bge_eeprom_getbyte(struct bge_softc *, uint32_t, uint8_t *);
322 static int bge_read_eeprom(struct bge_softc *, caddr_t, uint32_t, size_t);
324 static void bge_setmulti(struct bge_softc *);
325 static void bge_setpromisc(struct bge_softc *);
327 static int bge_alloc_jumbo_mem(struct bge_softc *);
328 static void bge_free_jumbo_mem(struct bge_softc *);
329 static struct bge_jslot
330 *bge_jalloc(struct bge_softc *);
331 static void bge_jfree(void *);
332 static void bge_jref(void *);
333 static int bge_newbuf_std(struct bge_softc *, int, int);
334 static int bge_newbuf_jumbo(struct bge_softc *, int, int);
335 static void bge_setup_rxdesc_std(struct bge_softc *, int);
336 static void bge_setup_rxdesc_jumbo(struct bge_softc *, int);
337 static int bge_init_rx_ring_std(struct bge_softc *);
338 static void bge_free_rx_ring_std(struct bge_softc *);
339 static int bge_init_rx_ring_jumbo(struct bge_softc *);
340 static void bge_free_rx_ring_jumbo(struct bge_softc *);
341 static void bge_free_tx_ring(struct bge_softc *);
342 static int bge_init_tx_ring(struct bge_softc *);
344 static int bge_chipinit(struct bge_softc *);
345 static int bge_blockinit(struct bge_softc *);
346 static void bge_stop_block(struct bge_softc *, bus_size_t, uint32_t);
348 static uint32_t bge_readmem_ind(struct bge_softc *, uint32_t);
349 static void bge_writemem_ind(struct bge_softc *, uint32_t, uint32_t);
351 static uint32_t bge_readreg_ind(struct bge_softc *, uint32_t);
353 static void bge_writereg_ind(struct bge_softc *, uint32_t, uint32_t);
354 static void bge_writemem_direct(struct bge_softc *, uint32_t, uint32_t);
355 static void bge_writembx(struct bge_softc *, int, int);
357 static int bge_miibus_readreg(device_t, int, int);
358 static int bge_miibus_writereg(device_t, int, int, int);
359 static void bge_miibus_statchg(device_t);
360 static void bge_bcm5700_link_upd(struct bge_softc *, uint32_t);
361 static void bge_tbi_link_upd(struct bge_softc *, uint32_t);
362 static void bge_copper_link_upd(struct bge_softc *, uint32_t);
363 static void bge_autopoll_link_upd(struct bge_softc *, uint32_t);
364 static void bge_link_poll(struct bge_softc *);
366 static void bge_reset(struct bge_softc *);
368 static int bge_dma_alloc(struct bge_softc *);
369 static void bge_dma_free(struct bge_softc *);
370 static int bge_dma_block_alloc(struct bge_softc *, bus_size_t,
371 bus_dma_tag_t *, bus_dmamap_t *,
372 void **, bus_addr_t *);
373 static void bge_dma_block_free(bus_dma_tag_t, bus_dmamap_t, void *);
375 static int bge_get_eaddr_mem(struct bge_softc *, uint8_t[]);
376 static int bge_get_eaddr_nvram(struct bge_softc *, uint8_t[]);
377 static int bge_get_eaddr_eeprom(struct bge_softc *, uint8_t[]);
378 static int bge_get_eaddr(struct bge_softc *, uint8_t[]);
380 static void bge_coal_change(struct bge_softc *);
381 static int bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS);
382 static int bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS);
383 static int bge_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS);
384 static int bge_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS);
385 static int bge_sysctl_rx_coal_ticks_int(SYSCTL_HANDLER_ARGS);
386 static int bge_sysctl_tx_coal_ticks_int(SYSCTL_HANDLER_ARGS);
387 static int bge_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS);
388 static int bge_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS);
389 static int bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *,
393 * Set following tunable to 1 for some IBM blade servers with the DNLK
394 * switch module. Auto negotiation is broken for those configurations.
396 static int bge_fake_autoneg = 0;
397 TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg);
399 #if !defined(KTR_IF_BGE)
400 #define KTR_IF_BGE KTR_ALL
402 KTR_INFO_MASTER(if_bge);
403 KTR_INFO(KTR_IF_BGE, if_bge, intr, 0, "intr");
404 KTR_INFO(KTR_IF_BGE, if_bge, rx_pkt, 1, "rx_pkt");
405 KTR_INFO(KTR_IF_BGE, if_bge, tx_pkt, 2, "tx_pkt");
406 #define logif(name) KTR_LOG(if_bge_ ## name)
408 static device_method_t bge_methods[] = {
409 /* Device interface */
410 DEVMETHOD(device_probe, bge_probe),
411 DEVMETHOD(device_attach, bge_attach),
412 DEVMETHOD(device_detach, bge_detach),
413 DEVMETHOD(device_shutdown, bge_shutdown),
414 DEVMETHOD(device_suspend, bge_suspend),
415 DEVMETHOD(device_resume, bge_resume),
418 DEVMETHOD(bus_print_child, bus_generic_print_child),
419 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
422 DEVMETHOD(miibus_readreg, bge_miibus_readreg),
423 DEVMETHOD(miibus_writereg, bge_miibus_writereg),
424 DEVMETHOD(miibus_statchg, bge_miibus_statchg),
429 static DEFINE_CLASS_0(bge, bge_driver, bge_methods, sizeof(struct bge_softc));
430 static devclass_t bge_devclass;
432 DECLARE_DUMMY_MODULE(if_bge);
433 DRIVER_MODULE(if_bge, pci, bge_driver, bge_devclass, NULL, NULL);
434 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, NULL, NULL);
437 bge_readmem_ind(struct bge_softc *sc, uint32_t off)
439 device_t dev = sc->bge_dev;
442 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
443 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
446 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
447 val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4);
448 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
453 bge_writemem_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
455 device_t dev = sc->bge_dev;
457 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
458 off >= BGE_STATS_BLOCK && off < BGE_SEND_RING_1_TO_4)
461 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
462 pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4);
463 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
468 bge_readreg_ind(struct bge_softc *sc, uin32_t off)
470 device_t dev = sc->bge_dev;
472 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
473 return(pci_read_config(dev, BGE_PCI_REG_DATA, 4));
478 bge_writereg_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
480 device_t dev = sc->bge_dev;
482 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
483 pci_write_config(dev, BGE_PCI_REG_DATA, val, 4);
487 bge_writemem_direct(struct bge_softc *sc, uint32_t off, uint32_t val)
489 CSR_WRITE_4(sc, off, val);
493 bge_writembx(struct bge_softc *sc, int off, int val)
495 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
496 off += BGE_LPMBX_IRQ0_HI - BGE_MBX_IRQ0_HI;
498 CSR_WRITE_4(sc, off, val);
499 if (sc->bge_mbox_reorder)
504 bge_nvram_getbyte(struct bge_softc *sc, int addr, uint8_t *dest)
506 uint32_t access, byte = 0;
510 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_SET1);
511 for (i = 0; i < 8000; i++) {
512 if (CSR_READ_4(sc, BGE_NVRAM_SWARB) & BGE_NVRAMSWARB_GNT1)
520 access = CSR_READ_4(sc, BGE_NVRAM_ACCESS);
521 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access | BGE_NVRAMACC_ENABLE);
523 CSR_WRITE_4(sc, BGE_NVRAM_ADDR, addr & 0xfffffffc);
524 CSR_WRITE_4(sc, BGE_NVRAM_CMD, BGE_NVRAM_READCMD);
525 for (i = 0; i < BGE_TIMEOUT * 10; i++) {
527 if (CSR_READ_4(sc, BGE_NVRAM_CMD) & BGE_NVRAMCMD_DONE) {
533 if (i == BGE_TIMEOUT * 10) {
534 if_printf(&sc->arpcom.ac_if, "nvram read timed out\n");
539 byte = CSR_READ_4(sc, BGE_NVRAM_RDDATA);
541 *dest = (bswap32(byte) >> ((addr % 4) * 8)) & 0xFF;
543 /* Disable access. */
544 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access);
547 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_CLR1);
548 CSR_READ_4(sc, BGE_NVRAM_SWARB);
554 * Read a sequence of bytes from NVRAM.
557 bge_read_nvram(struct bge_softc *sc, caddr_t dest, int off, int cnt)
562 if (sc->bge_asicrev != BGE_ASICREV_BCM5906)
565 for (i = 0; i < cnt; i++) {
566 err = bge_nvram_getbyte(sc, off + i, &byte);
572 return (err ? 1 : 0);
576 * Read a byte of data stored in the EEPROM at address 'addr.' The
577 * BCM570x supports both the traditional bitbang interface and an
578 * auto access interface for reading the EEPROM. We use the auto
582 bge_eeprom_getbyte(struct bge_softc *sc, uint32_t addr, uint8_t *dest)
588 * Enable use of auto EEPROM access so we can avoid
589 * having to use the bitbang method.
591 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
593 /* Reset the EEPROM, load the clock period. */
594 CSR_WRITE_4(sc, BGE_EE_ADDR,
595 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
598 /* Issue the read EEPROM command. */
599 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr);
601 /* Wait for completion */
602 for(i = 0; i < BGE_TIMEOUT * 10; i++) {
604 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE)
608 if (i == BGE_TIMEOUT) {
609 if_printf(&sc->arpcom.ac_if, "eeprom read timed out\n");
614 byte = CSR_READ_4(sc, BGE_EE_DATA);
616 *dest = (byte >> ((addr % 4) * 8)) & 0xFF;
622 * Read a sequence of bytes from the EEPROM.
625 bge_read_eeprom(struct bge_softc *sc, caddr_t dest, uint32_t off, size_t len)
631 for (byte = 0, err = 0, i = 0; i < len; i++) {
632 err = bge_eeprom_getbyte(sc, off + i, &byte);
642 bge_miibus_readreg(device_t dev, int phy, int reg)
644 struct bge_softc *sc = device_get_softc(dev);
648 KASSERT(phy == sc->bge_phyno,
649 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
651 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
652 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
653 CSR_WRITE_4(sc, BGE_MI_MODE,
654 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL);
658 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ | BGE_MICOMM_BUSY |
659 BGE_MIPHY(phy) | BGE_MIREG(reg));
661 /* Poll for the PHY register access to complete. */
662 for (i = 0; i < BGE_TIMEOUT; i++) {
664 val = CSR_READ_4(sc, BGE_MI_COMM);
665 if ((val & BGE_MICOMM_BUSY) == 0) {
667 val = CSR_READ_4(sc, BGE_MI_COMM);
671 if (i == BGE_TIMEOUT) {
672 if_printf(&sc->arpcom.ac_if, "PHY read timed out "
673 "(phy %d, reg %d, val 0x%08x)\n", phy, reg, val);
677 /* Restore the autopoll bit if necessary. */
678 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
679 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
683 if (val & BGE_MICOMM_READFAIL)
686 return (val & 0xFFFF);
690 bge_miibus_writereg(device_t dev, int phy, int reg, int val)
692 struct bge_softc *sc = device_get_softc(dev);
695 KASSERT(phy == sc->bge_phyno,
696 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
698 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
699 (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL))
702 /* Clear the autopoll bit if set, otherwise may trigger PCI errors. */
703 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
704 CSR_WRITE_4(sc, BGE_MI_MODE,
705 sc->bge_mi_mode & ~BGE_MIMODE_AUTOPOLL);
709 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE | BGE_MICOMM_BUSY |
710 BGE_MIPHY(phy) | BGE_MIREG(reg) | val);
712 for (i = 0; i < BGE_TIMEOUT; i++) {
714 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) {
716 CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */
720 if (i == BGE_TIMEOUT) {
721 if_printf(&sc->arpcom.ac_if, "PHY write timed out "
722 "(phy %d, reg %d, val %d)\n", phy, reg, val);
725 /* Restore the autopoll bit if necessary. */
726 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
727 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
735 bge_miibus_statchg(device_t dev)
737 struct bge_softc *sc;
738 struct mii_data *mii;
740 sc = device_get_softc(dev);
741 mii = device_get_softc(sc->bge_miibus);
743 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
744 (IFM_ACTIVE | IFM_AVALID)) {
745 switch (IFM_SUBTYPE(mii->mii_media_active)) {
753 if (sc->bge_asicrev != BGE_ASICREV_BCM5906)
765 if (sc->bge_link == 0)
768 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
769 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T ||
770 IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) {
771 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
773 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
776 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
777 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
779 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
784 * Memory management for jumbo frames.
787 bge_alloc_jumbo_mem(struct bge_softc *sc)
789 struct ifnet *ifp = &sc->arpcom.ac_if;
790 struct bge_jslot *entry;
796 * Create tag for jumbo mbufs.
797 * This is really a bit of a kludge. We allocate a special
798 * jumbo buffer pool which (thanks to the way our DMA
799 * memory allocation works) will consist of contiguous
800 * pages. This means that even though a jumbo buffer might
801 * be larger than a page size, we don't really need to
802 * map it into more than one DMA segment. However, the
803 * default mbuf tag will result in multi-segment mappings,
804 * so we have to create a special jumbo mbuf tag that
805 * lets us get away with mapping the jumbo buffers as
806 * a single segment. I think eventually the driver should
807 * be changed so that it uses ordinary mbufs and cluster
808 * buffers, i.e. jumbo frames can span multiple DMA
809 * descriptors. But that's a project for another day.
813 * Create DMA stuffs for jumbo RX ring.
815 error = bge_dma_block_alloc(sc, BGE_JUMBO_RX_RING_SZ,
816 &sc->bge_cdata.bge_rx_jumbo_ring_tag,
817 &sc->bge_cdata.bge_rx_jumbo_ring_map,
818 (void *)&sc->bge_ldata.bge_rx_jumbo_ring,
819 &sc->bge_ldata.bge_rx_jumbo_ring_paddr);
821 if_printf(ifp, "could not create jumbo RX ring\n");
826 * Create DMA stuffs for jumbo buffer block.
828 error = bge_dma_block_alloc(sc, BGE_JMEM,
829 &sc->bge_cdata.bge_jumbo_tag,
830 &sc->bge_cdata.bge_jumbo_map,
831 (void **)&sc->bge_ldata.bge_jumbo_buf,
834 if_printf(ifp, "could not create jumbo buffer\n");
838 SLIST_INIT(&sc->bge_jfree_listhead);
841 * Now divide it up into 9K pieces and save the addresses
842 * in an array. Note that we play an evil trick here by using
843 * the first few bytes in the buffer to hold the the address
844 * of the softc structure for this interface. This is because
845 * bge_jfree() needs it, but it is called by the mbuf management
846 * code which will not pass it to us explicitly.
848 for (i = 0, ptr = sc->bge_ldata.bge_jumbo_buf; i < BGE_JSLOTS; i++) {
849 entry = &sc->bge_cdata.bge_jslots[i];
851 entry->bge_buf = ptr;
852 entry->bge_paddr = paddr;
853 entry->bge_inuse = 0;
855 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jslot_link);
864 bge_free_jumbo_mem(struct bge_softc *sc)
866 /* Destroy jumbo RX ring. */
867 bge_dma_block_free(sc->bge_cdata.bge_rx_jumbo_ring_tag,
868 sc->bge_cdata.bge_rx_jumbo_ring_map,
869 sc->bge_ldata.bge_rx_jumbo_ring);
871 /* Destroy jumbo buffer block. */
872 bge_dma_block_free(sc->bge_cdata.bge_jumbo_tag,
873 sc->bge_cdata.bge_jumbo_map,
874 sc->bge_ldata.bge_jumbo_buf);
878 * Allocate a jumbo buffer.
880 static struct bge_jslot *
881 bge_jalloc(struct bge_softc *sc)
883 struct bge_jslot *entry;
885 lwkt_serialize_enter(&sc->bge_jslot_serializer);
886 entry = SLIST_FIRST(&sc->bge_jfree_listhead);
888 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jslot_link);
889 entry->bge_inuse = 1;
891 if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n");
893 lwkt_serialize_exit(&sc->bge_jslot_serializer);
898 * Adjust usage count on a jumbo buffer.
903 struct bge_jslot *entry = (struct bge_jslot *)arg;
904 struct bge_softc *sc = entry->bge_sc;
907 panic("bge_jref: can't find softc pointer!");
909 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
910 panic("bge_jref: asked to reference buffer "
911 "that we don't manage!");
912 } else if (entry->bge_inuse == 0) {
913 panic("bge_jref: buffer already free!");
915 atomic_add_int(&entry->bge_inuse, 1);
920 * Release a jumbo buffer.
925 struct bge_jslot *entry = (struct bge_jslot *)arg;
926 struct bge_softc *sc = entry->bge_sc;
929 panic("bge_jfree: can't find softc pointer!");
931 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
932 panic("bge_jfree: asked to free buffer that we don't manage!");
933 } else if (entry->bge_inuse == 0) {
934 panic("bge_jfree: buffer already free!");
937 * Possible MP race to 0, use the serializer. The atomic insn
938 * is still needed for races against bge_jref().
940 lwkt_serialize_enter(&sc->bge_jslot_serializer);
941 atomic_subtract_int(&entry->bge_inuse, 1);
942 if (entry->bge_inuse == 0) {
943 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead,
946 lwkt_serialize_exit(&sc->bge_jslot_serializer);
952 * Intialize a standard receive ring descriptor.
955 bge_newbuf_std(struct bge_softc *sc, int i, int init)
957 struct mbuf *m_new = NULL;
958 bus_dma_segment_t seg;
962 m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
965 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
967 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0)
968 m_adj(m_new, ETHER_ALIGN);
970 error = bus_dmamap_load_mbuf_segment(sc->bge_cdata.bge_rx_mtag,
971 sc->bge_cdata.bge_rx_tmpmap, m_new,
972 &seg, 1, &nsegs, BUS_DMA_NOWAIT);
979 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag,
980 sc->bge_cdata.bge_rx_std_dmamap[i],
981 BUS_DMASYNC_POSTREAD);
982 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
983 sc->bge_cdata.bge_rx_std_dmamap[i]);
986 map = sc->bge_cdata.bge_rx_tmpmap;
987 sc->bge_cdata.bge_rx_tmpmap = sc->bge_cdata.bge_rx_std_dmamap[i];
988 sc->bge_cdata.bge_rx_std_dmamap[i] = map;
990 sc->bge_cdata.bge_rx_std_chain[i].bge_mbuf = m_new;
991 sc->bge_cdata.bge_rx_std_chain[i].bge_paddr = seg.ds_addr;
993 bge_setup_rxdesc_std(sc, i);
998 bge_setup_rxdesc_std(struct bge_softc *sc, int i)
1000 struct bge_rxchain *rc;
1001 struct bge_rx_bd *r;
1003 rc = &sc->bge_cdata.bge_rx_std_chain[i];
1004 r = &sc->bge_ldata.bge_rx_std_ring[i];
1006 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1007 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1008 r->bge_len = rc->bge_mbuf->m_len;
1010 r->bge_flags = BGE_RXBDFLAG_END;
1014 * Initialize a jumbo receive ring descriptor. This allocates
1015 * a jumbo buffer from the pool managed internally by the driver.
1018 bge_newbuf_jumbo(struct bge_softc *sc, int i, int init)
1020 struct mbuf *m_new = NULL;
1021 struct bge_jslot *buf;
1024 /* Allocate the mbuf. */
1025 MGETHDR(m_new, init ? MB_WAIT : MB_DONTWAIT, MT_DATA);
1029 /* Allocate the jumbo buffer */
1030 buf = bge_jalloc(sc);
1036 /* Attach the buffer to the mbuf. */
1037 m_new->m_ext.ext_arg = buf;
1038 m_new->m_ext.ext_buf = buf->bge_buf;
1039 m_new->m_ext.ext_free = bge_jfree;
1040 m_new->m_ext.ext_ref = bge_jref;
1041 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN;
1043 m_new->m_flags |= M_EXT;
1045 m_new->m_data = m_new->m_ext.ext_buf;
1046 m_new->m_len = m_new->m_pkthdr.len = m_new->m_ext.ext_size;
1048 paddr = buf->bge_paddr;
1049 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) {
1050 m_adj(m_new, ETHER_ALIGN);
1051 paddr += ETHER_ALIGN;
1054 /* Save necessary information */
1055 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_mbuf = m_new;
1056 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_paddr = paddr;
1058 /* Set up the descriptor. */
1059 bge_setup_rxdesc_jumbo(sc, i);
1064 bge_setup_rxdesc_jumbo(struct bge_softc *sc, int i)
1066 struct bge_rx_bd *r;
1067 struct bge_rxchain *rc;
1069 r = &sc->bge_ldata.bge_rx_jumbo_ring[i];
1070 rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1072 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1073 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1074 r->bge_len = rc->bge_mbuf->m_len;
1076 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
1080 bge_init_rx_ring_std(struct bge_softc *sc)
1084 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1085 error = bge_newbuf_std(sc, i, 1);
1090 sc->bge_std = BGE_STD_RX_RING_CNT - 1;
1091 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
1097 bge_free_rx_ring_std(struct bge_softc *sc)
1101 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1102 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_std_chain[i];
1104 if (rc->bge_mbuf != NULL) {
1105 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
1106 sc->bge_cdata.bge_rx_std_dmamap[i]);
1107 m_freem(rc->bge_mbuf);
1108 rc->bge_mbuf = NULL;
1110 bzero(&sc->bge_ldata.bge_rx_std_ring[i],
1111 sizeof(struct bge_rx_bd));
1116 bge_init_rx_ring_jumbo(struct bge_softc *sc)
1118 struct bge_rcb *rcb;
1121 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1122 error = bge_newbuf_jumbo(sc, i, 1);
1127 sc->bge_jumbo = BGE_JUMBO_RX_RING_CNT - 1;
1129 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1130 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
1131 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1133 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
1139 bge_free_rx_ring_jumbo(struct bge_softc *sc)
1143 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1144 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1146 if (rc->bge_mbuf != NULL) {
1147 m_freem(rc->bge_mbuf);
1148 rc->bge_mbuf = NULL;
1150 bzero(&sc->bge_ldata.bge_rx_jumbo_ring[i],
1151 sizeof(struct bge_rx_bd));
1156 bge_free_tx_ring(struct bge_softc *sc)
1160 for (i = 0; i < BGE_TX_RING_CNT; i++) {
1161 if (sc->bge_cdata.bge_tx_chain[i] != NULL) {
1162 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
1163 sc->bge_cdata.bge_tx_dmamap[i]);
1164 m_freem(sc->bge_cdata.bge_tx_chain[i]);
1165 sc->bge_cdata.bge_tx_chain[i] = NULL;
1167 bzero(&sc->bge_ldata.bge_tx_ring[i],
1168 sizeof(struct bge_tx_bd));
1173 bge_init_tx_ring(struct bge_softc *sc)
1176 sc->bge_tx_saved_considx = 0;
1177 sc->bge_tx_prodidx = 0;
1179 /* Initialize transmit producer index for host-memory send ring. */
1180 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1182 /* 5700 b2 errata */
1183 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1184 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1186 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1187 /* 5700 b2 errata */
1188 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1189 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1195 bge_setmulti(struct bge_softc *sc)
1198 struct ifmultiaddr *ifma;
1199 uint32_t hashes[4] = { 0, 0, 0, 0 };
1202 ifp = &sc->arpcom.ac_if;
1204 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1205 for (i = 0; i < 4; i++)
1206 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF);
1210 /* First, zot all the existing filters. */
1211 for (i = 0; i < 4; i++)
1212 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0);
1214 /* Now program new ones. */
1215 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1216 if (ifma->ifma_addr->sa_family != AF_LINK)
1219 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1220 ETHER_ADDR_LEN) & 0x7f;
1221 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
1224 for (i = 0; i < 4; i++)
1225 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]);
1229 * Do endian, PCI and DMA initialization. Also check the on-board ROM
1230 * self-test results.
1233 bge_chipinit(struct bge_softc *sc)
1236 uint32_t dma_rw_ctl;
1239 /* Set endian type before we access any non-PCI registers. */
1240 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL,
1241 BGE_INIT | sc->bge_pci_miscctl, 4);
1243 /* Clear the MAC control register */
1244 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
1247 * Clear the MAC statistics block in the NIC's
1250 for (i = BGE_STATS_BLOCK;
1251 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t))
1252 BGE_MEMWIN_WRITE(sc, i, 0);
1254 for (i = BGE_STATUS_BLOCK;
1255 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t))
1256 BGE_MEMWIN_WRITE(sc, i, 0);
1258 if (sc->bge_chiprev == BGE_CHIPREV_5704_BX) {
1260 * Fix data corruption caused by non-qword write with WB.
1261 * Fix master abort in PCI mode.
1262 * Fix PCI latency timer.
1264 val = pci_read_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, 2);
1265 val |= (1 << 10) | (1 << 12) | (1 << 13);
1266 pci_write_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, val, 2);
1269 /* Set up the PCI DMA control register. */
1270 if (sc->bge_flags & BGE_FLAG_PCIE) {
1272 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1273 (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1274 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1275 } else if (sc->bge_flags & BGE_FLAG_PCIX) {
1277 if (BGE_IS_5714_FAMILY(sc)) {
1278 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD;
1279 dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */
1280 /* XXX magic values, Broadcom-supplied Linux driver */
1281 if (sc->bge_asicrev == BGE_ASICREV_BCM5780) {
1282 dma_rw_ctl |= (1 << 20) | (1 << 18) |
1283 BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1285 dma_rw_ctl |= (1 << 20) | (1 << 18) | (1 << 15);
1287 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
1289 * In the BCM5703, the DMA read watermark should
1290 * be set to less than or equal to the maximum
1291 * memory read byte count of the PCI-X command
1294 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1295 (0x4 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1296 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1297 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1299 * The 5704 uses a different encoding of read/write
1302 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1303 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1304 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1306 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1307 (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1308 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1313 * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround
1314 * for hardware bugs.
1316 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1317 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1320 tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f;
1321 if (tmp == 0x6 || tmp == 0x7)
1322 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1325 /* Conventional PCI bus */
1326 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1327 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1328 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1332 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1333 sc->bge_asicrev == BGE_ASICREV_BCM5704 ||
1334 sc->bge_asicrev == BGE_ASICREV_BCM5705)
1335 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA;
1336 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4);
1339 * Set up general mode register.
1341 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
1342 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS|
1343 BGE_MODECTL_TX_NO_PHDR_CSUM);
1346 * BCM5701 B5 have a bug causing data corruption when using
1347 * 64-bit DMA reads, which can be terminated early and then
1348 * completed later as 32-bit accesses, in combination with
1351 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
1352 sc->bge_chipid == BGE_CHIPID_BCM5701_B5)
1353 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_FORCE_PCI32);
1356 * Disable memory write invalidate. Apparently it is not supported
1357 * properly by these devices.
1359 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4);
1361 /* Set the timer prescaler (always 66Mhz) */
1362 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
1364 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1365 DELAY(40); /* XXX */
1367 /* Put PHY into ready state */
1368 BGE_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
1369 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */
1377 bge_blockinit(struct bge_softc *sc)
1379 struct bge_rcb *rcb;
1386 * Initialize the memory window pointer register so that
1387 * we can access the first 32K of internal NIC RAM. This will
1388 * allow us to set up the TX send ring RCBs and the RX return
1389 * ring RCBs, plus other things which live in NIC memory.
1391 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
1393 /* Note: the BCM5704 has a smaller mbuf space than other chips. */
1395 if (!BGE_IS_5705_PLUS(sc)) {
1396 /* Configure mbuf memory pool */
1397 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1);
1398 if (sc->bge_asicrev == BGE_ASICREV_BCM5704)
1399 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000);
1401 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000);
1403 /* Configure DMA resource pool */
1404 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR,
1405 BGE_DMA_DESCRIPTORS);
1406 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000);
1409 /* Configure mbuf pool watermarks */
1410 if (!BGE_IS_5705_PLUS(sc)) {
1411 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50);
1412 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20);
1413 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1414 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1415 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1416 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04);
1417 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10);
1419 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1420 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
1421 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1424 /* Configure DMA resource watermarks */
1425 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
1426 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
1428 /* Enable buffer manager */
1429 CSR_WRITE_4(sc, BGE_BMAN_MODE,
1430 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN);
1432 /* Poll for buffer manager start indication */
1433 for (i = 0; i < BGE_TIMEOUT; i++) {
1434 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
1439 if (i == BGE_TIMEOUT) {
1440 if_printf(&sc->arpcom.ac_if,
1441 "buffer manager failed to start\n");
1445 /* Enable flow-through queues */
1446 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
1447 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
1449 /* Wait until queue initialization is complete */
1450 for (i = 0; i < BGE_TIMEOUT; i++) {
1451 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
1456 if (i == BGE_TIMEOUT) {
1457 if_printf(&sc->arpcom.ac_if,
1458 "flow-through queue init failed\n");
1463 * Summary of rings supported by the controller:
1465 * Standard Receive Producer Ring
1466 * - This ring is used to feed receive buffers for "standard"
1467 * sized frames (typically 1536 bytes) to the controller.
1469 * Jumbo Receive Producer Ring
1470 * - This ring is used to feed receive buffers for jumbo sized
1471 * frames (i.e. anything bigger than the "standard" frames)
1472 * to the controller.
1474 * Mini Receive Producer Ring
1475 * - This ring is used to feed receive buffers for "mini"
1476 * sized frames to the controller.
1477 * - This feature required external memory for the controller
1478 * but was never used in a production system. Should always
1481 * Receive Return Ring
1482 * - After the controller has placed an incoming frame into a
1483 * receive buffer that buffer is moved into a receive return
1484 * ring. The driver is then responsible to passing the
1485 * buffer up to the stack. Many versions of the controller
1486 * support multiple RR rings.
1489 * - This ring is used for outgoing frames. Many versions of
1490 * the controller support multiple send rings.
1493 /* Initialize the standard receive producer ring control block. */
1494 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb;
1495 rcb->bge_hostaddr.bge_addr_lo =
1496 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr);
1497 rcb->bge_hostaddr.bge_addr_hi =
1498 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr);
1499 if (BGE_IS_5705_PLUS(sc)) {
1501 * Bits 31-16: Programmable ring size (512, 256, 128, 64, 32)
1502 * Bits 15-2 : Reserved (should be 0)
1503 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled
1506 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
1509 * Ring size is always XXX entries
1510 * Bits 31-16: Maximum RX frame size
1511 * Bits 15-2 : Reserved (should be 0)
1512 * Bit 1 : 1 = Ring Disabled, 0 = Ring Enabled
1515 rcb->bge_maxlen_flags =
1516 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0);
1518 rcb->bge_nicaddr = BGE_STD_RX_RINGS;
1519 /* Write the standard receive producer ring control block. */
1520 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
1521 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
1522 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1523 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
1524 /* Reset the standard receive producer ring producer index. */
1525 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1528 * Initialize the jumbo RX producer ring control
1529 * block. We set the 'ring disabled' bit in the
1530 * flags field until we're actually ready to start
1531 * using this ring (i.e. once we set the MTU
1532 * high enough to require it).
1534 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1535 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1536 /* Get the jumbo receive producer ring RCB parameters. */
1537 rcb->bge_hostaddr.bge_addr_lo =
1538 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1539 rcb->bge_hostaddr.bge_addr_hi =
1540 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1541 rcb->bge_maxlen_flags =
1542 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN,
1543 BGE_RCB_FLAG_RING_DISABLED);
1544 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
1545 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
1546 rcb->bge_hostaddr.bge_addr_hi);
1547 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
1548 rcb->bge_hostaddr.bge_addr_lo);
1549 /* Program the jumbo receive producer ring RCB parameters. */
1550 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
1551 rcb->bge_maxlen_flags);
1552 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr);
1553 /* Reset the jumbo receive producer ring producer index. */
1554 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1557 /* Disable the mini receive producer ring RCB. */
1558 if (BGE_IS_5700_FAMILY(sc)) {
1559 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb;
1560 rcb->bge_maxlen_flags =
1561 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED);
1562 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS,
1563 rcb->bge_maxlen_flags);
1564 /* Reset the mini receive producer ring producer index. */
1565 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
1568 /* Choose de-pipeline mode for BCM5906 A0, A1 and A2. */
1569 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
1570 (sc->bge_chipid == BGE_CHIPID_BCM5906_A0 ||
1571 sc->bge_chipid == BGE_CHIPID_BCM5906_A1 ||
1572 sc->bge_chipid == BGE_CHIPID_BCM5906_A2)) {
1573 CSR_WRITE_4(sc, BGE_ISO_PKT_TX,
1574 (CSR_READ_4(sc, BGE_ISO_PKT_TX) & ~3) | 2);
1578 * The BD ring replenish thresholds control how often the
1579 * hardware fetches new BD's from the producer rings in host
1580 * memory. Setting the value too low on a busy system can
1581 * starve the hardware and recue the throughpout.
1583 * Set the BD ring replentish thresholds. The recommended
1584 * values are 1/8th the number of descriptors allocated to
1587 if (BGE_IS_5705_PLUS(sc))
1590 val = BGE_STD_RX_RING_CNT / 8;
1591 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val);
1592 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1593 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH,
1594 BGE_JUMBO_RX_RING_CNT/8);
1598 * Disable all send rings by setting the 'ring disabled' bit
1599 * in the flags field of all the TX send ring control blocks,
1600 * located in NIC memory.
1602 if (!BGE_IS_5705_PLUS(sc)) {
1603 /* 5700 to 5704 had 16 send rings. */
1604 limit = BGE_TX_RINGS_EXTSSRAM_MAX;
1608 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1609 for (i = 0; i < limit; i++) {
1610 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1611 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1612 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1613 vrcb += sizeof(struct bge_rcb);
1616 /* Configure send ring RCB 0 (we use only the first ring) */
1617 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1618 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr);
1619 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1620 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1621 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1622 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1623 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1624 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1627 * Disable all receive return rings by setting the
1628 * 'ring diabled' bit in the flags field of all the receive
1629 * return ring control blocks, located in NIC memory.
1631 if (!BGE_IS_5705_PLUS(sc))
1632 limit = BGE_RX_RINGS_MAX;
1633 else if (sc->bge_asicrev == BGE_ASICREV_BCM5755)
1637 /* Disable all receive return rings. */
1638 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1639 for (i = 0; i < limit; i++) {
1640 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1641 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1642 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1643 BGE_RCB_FLAG_RING_DISABLED);
1644 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1645 bge_writembx(sc, BGE_MBX_RX_CONS0_LO +
1646 (i * (sizeof(uint64_t))), 0);
1647 vrcb += sizeof(struct bge_rcb);
1651 * Set up receive return ring 0. Note that the NIC address
1652 * for RX return rings is 0x0. The return rings live entirely
1653 * within the host, so the nicaddr field in the RCB isn't used.
1655 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1656 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr);
1657 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1658 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1659 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1660 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1661 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
1663 /* Set random backoff seed for TX */
1664 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1665 sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1666 sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1667 sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1668 BGE_TX_BACKOFF_SEED_MASK);
1670 /* Set inter-packet gap */
1671 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
1674 * Specify which ring to use for packets that don't match
1677 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1680 * Configure number of RX lists. One interrupt distribution
1681 * list, sixteen active lists, one bad frames class.
1683 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1685 /* Inialize RX list placement stats mask. */
1686 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1687 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1689 /* Disable host coalescing until we get it set up */
1690 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1692 /* Poll to make sure it's shut down. */
1693 for (i = 0; i < BGE_TIMEOUT; i++) {
1694 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1699 if (i == BGE_TIMEOUT) {
1700 if_printf(&sc->arpcom.ac_if,
1701 "host coalescing engine failed to idle\n");
1705 /* Set up host coalescing defaults */
1706 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
1707 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
1708 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_coal_bds);
1709 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_coal_bds);
1710 if (!BGE_IS_5705_PLUS(sc)) {
1711 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT,
1712 sc->bge_rx_coal_ticks_int);
1713 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT,
1714 sc->bge_tx_coal_ticks_int);
1718 * The datasheet (57XX-PG105-R) says BCM5705+ do not
1719 * have following two registers; obviously it is wrong.
1721 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, sc->bge_rx_coal_bds_int);
1722 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, sc->bge_tx_coal_bds_int);
1724 /* Set up address of statistics block */
1725 if (!BGE_IS_5705_PLUS(sc)) {
1726 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI,
1727 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr));
1728 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
1729 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr));
1731 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
1732 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
1733 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
1736 /* Set up address of status block */
1737 bzero(sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ);
1738 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1739 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr));
1740 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1741 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr));
1744 * Set up status block partail update size.
1746 * Because only single TX ring, RX produce ring and Rx return ring
1747 * are used, ask device to update only minimum part of status block
1748 * except for BCM5700 AX/BX, whose status block partial update size
1749 * can't be configured.
1751 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1752 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) {
1753 /* XXX Actually reserved on BCM5700 AX/BX */
1754 val = BGE_STATBLKSZ_FULL;
1756 val = BGE_STATBLKSZ_32BYTE;
1760 * Does not seem to have visible effect in both
1761 * bulk data (1472B UDP datagram) and tiny data
1762 * (18B UDP datagram) TX tests.
1764 if (!BGE_IS_CRIPPLED(sc))
1765 val |= BGE_HCCMODE_CLRTICK_TX;
1768 /* Turn on host coalescing state machine */
1769 CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE);
1771 /* Turn on RX BD completion state machine and enable attentions */
1772 CSR_WRITE_4(sc, BGE_RBDC_MODE,
1773 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1775 /* Turn on RX list placement state machine */
1776 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1778 /* Turn on RX list selector state machine. */
1779 if (!BGE_IS_5705_PLUS(sc))
1780 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
1782 val = BGE_MACMODE_TXDMA_ENB | BGE_MACMODE_RXDMA_ENB |
1783 BGE_MACMODE_RX_STATS_CLEAR | BGE_MACMODE_TX_STATS_CLEAR |
1784 BGE_MACMODE_RX_STATS_ENB | BGE_MACMODE_TX_STATS_ENB |
1785 BGE_MACMODE_FRMHDR_DMA_ENB;
1787 if (sc->bge_flags & BGE_FLAG_TBI)
1788 val |= BGE_PORTMODE_TBI;
1789 else if (sc->bge_flags & BGE_FLAG_MII_SERDES)
1790 val |= BGE_PORTMODE_GMII;
1792 val |= BGE_PORTMODE_MII;
1794 /* Turn on DMA, clear stats */
1795 CSR_WRITE_4(sc, BGE_MAC_MODE, val);
1797 /* Set misc. local control, enable interrupts on attentions */
1798 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1801 /* Assert GPIO pins for PHY reset */
1802 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1803 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1804 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1805 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1808 /* Turn on DMA completion state machine */
1809 if (!BGE_IS_5705_PLUS(sc))
1810 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
1812 /* Turn on write DMA state machine */
1813 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1814 if (BGE_IS_5755_PLUS(sc)) {
1815 /* Enable host coalescing bug fix. */
1816 val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1818 if (sc->bge_asicrev == BGE_ASICREV_BCM5785) {
1819 /* Request larger DMA burst size to get better performance. */
1820 val |= BGE_WDMAMODE_BURST_ALL_DATA;
1822 CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1825 if (sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1826 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1827 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1828 sc->bge_asicrev == BGE_ASICREV_BCM57780) {
1830 * Enable fix for read DMA FIFO overruns.
1831 * The fix is to limit the number of RX BDs
1832 * the hardware would fetch at a fime.
1834 val = CSR_READ_4(sc, BGE_RDMA_RSRVCTRL);
1835 CSR_WRITE_4(sc, BGE_RDMA_RSRVCTRL,
1836 val| BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
1839 /* Turn on read DMA state machine */
1840 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1841 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1842 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1843 sc->bge_asicrev == BGE_ASICREV_BCM57780)
1844 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1845 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1846 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1847 if (sc->bge_flags & BGE_FLAG_PCIE)
1848 val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1849 CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1852 /* Turn on RX data completion state machine */
1853 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1855 /* Turn on RX BD initiator state machine */
1856 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1858 /* Turn on RX data and RX BD initiator state machine */
1859 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1861 /* Turn on Mbuf cluster free state machine */
1862 if (!BGE_IS_5705_PLUS(sc))
1863 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
1865 /* Turn on send BD completion state machine */
1866 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1868 /* Turn on send data completion state machine */
1869 val = BGE_SDCMODE_ENABLE;
1870 if (sc->bge_asicrev == BGE_ASICREV_BCM5761)
1871 val |= BGE_SDCMODE_CDELAY;
1872 CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1874 /* Turn on send data initiator state machine */
1875 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1877 /* Turn on send BD initiator state machine */
1878 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1880 /* Turn on send BD selector state machine */
1881 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1883 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1884 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1885 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1887 /* ack/clear link change events */
1888 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1889 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1890 BGE_MACSTAT_LINK_CHANGED);
1891 CSR_WRITE_4(sc, BGE_MI_STS, 0);
1894 * Enable attention when the link has changed state for
1895 * devices that use auto polling.
1897 if (sc->bge_flags & BGE_FLAG_TBI) {
1898 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1900 if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
1901 CSR_WRITE_4(sc, BGE_MI_MODE, sc->bge_mi_mode);
1904 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1905 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
1906 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
1907 BGE_EVTENB_MI_INTERRUPT);
1912 * Clear any pending link state attention.
1913 * Otherwise some link state change events may be lost until attention
1914 * is cleared by bge_intr() -> bge_softc.bge_link_upd() sequence.
1915 * It's not necessary on newer BCM chips - perhaps enabling link
1916 * state change attentions implies clearing pending attention.
1918 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1919 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1920 BGE_MACSTAT_LINK_CHANGED);
1922 /* Enable link state change attentions. */
1923 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1929 * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1930 * against our list and return its name if we find a match. Note
1931 * that since the Broadcom controller contains VPD support, we
1932 * can get the device name string from the controller itself instead
1933 * of the compiled-in string. This is a little slow, but it guarantees
1934 * we'll always announce the right product name.
1937 bge_probe(device_t dev)
1939 const struct bge_type *t;
1940 uint16_t product, vendor;
1942 product = pci_get_device(dev);
1943 vendor = pci_get_vendor(dev);
1945 for (t = bge_devs; t->bge_name != NULL; t++) {
1946 if (vendor == t->bge_vid && product == t->bge_did)
1949 if (t->bge_name == NULL)
1952 device_set_desc(dev, t->bge_name);
1957 bge_attach(device_t dev)
1960 struct bge_softc *sc;
1961 uint32_t hwcfg = 0, misccfg;
1962 int error = 0, rid, capmask;
1963 uint8_t ether_addr[ETHER_ADDR_LEN];
1964 uint16_t product, vendor;
1965 driver_intr_t *intr_func;
1966 uintptr_t mii_priv = 0;
1968 sc = device_get_softc(dev);
1970 callout_init(&sc->bge_stat_timer);
1971 lwkt_serialize_init(&sc->bge_jslot_serializer);
1973 #ifndef BURN_BRIDGES
1974 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1977 irq = pci_read_config(dev, PCIR_INTLINE, 4);
1978 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
1980 device_printf(dev, "chip is in D%d power mode "
1981 "-- setting to D0\n", pci_get_powerstate(dev));
1983 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1985 pci_write_config(dev, PCIR_INTLINE, irq, 4);
1986 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
1988 #endif /* !BURN_BRIDGE */
1991 * Map control/status registers.
1993 pci_enable_busmaster(dev);
1996 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1999 if (sc->bge_res == NULL) {
2000 device_printf(dev, "couldn't map memory\n");
2004 sc->bge_btag = rman_get_bustag(sc->bge_res);
2005 sc->bge_bhandle = rman_get_bushandle(sc->bge_res);
2007 /* Save various chip information */
2009 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
2010 BGE_PCIMISCCTL_ASICREV_SHIFT;
2011 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG)
2012 sc->bge_chipid = pci_read_config(dev, BGE_PCI_PRODID_ASICREV, 4);
2013 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid);
2014 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid);
2016 /* Save chipset family. */
2017 switch (sc->bge_asicrev) {
2018 case BGE_ASICREV_BCM5755:
2019 case BGE_ASICREV_BCM5761:
2020 case BGE_ASICREV_BCM5784:
2021 case BGE_ASICREV_BCM5785:
2022 case BGE_ASICREV_BCM5787:
2023 case BGE_ASICREV_BCM57780:
2024 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS |
2028 case BGE_ASICREV_BCM5700:
2029 case BGE_ASICREV_BCM5701:
2030 case BGE_ASICREV_BCM5703:
2031 case BGE_ASICREV_BCM5704:
2032 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO;
2035 case BGE_ASICREV_BCM5714_A0:
2036 case BGE_ASICREV_BCM5780:
2037 case BGE_ASICREV_BCM5714:
2038 sc->bge_flags |= BGE_FLAG_5714_FAMILY;
2041 case BGE_ASICREV_BCM5750:
2042 case BGE_ASICREV_BCM5752:
2043 case BGE_ASICREV_BCM5906:
2044 sc->bge_flags |= BGE_FLAG_575X_PLUS;
2047 case BGE_ASICREV_BCM5705:
2048 sc->bge_flags |= BGE_FLAG_5705_PLUS;
2052 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
2053 sc->bge_flags |= BGE_FLAG_NO_EEPROM;
2055 misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID_MASK;
2056 if (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2057 (misccfg == BGE_MISCCFG_BOARD_ID_5788 ||
2058 misccfg == BGE_MISCCFG_BOARD_ID_5788M))
2059 sc->bge_flags |= BGE_FLAG_5788;
2061 /* BCM5755 or higher and BCM5906 have short DMA bug. */
2062 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906)
2063 sc->bge_flags |= BGE_FLAG_SHORTDMA;
2066 * Check if this is a PCI-X or PCI Express device.
2068 if (BGE_IS_5705_PLUS(sc)) {
2069 if (pci_is_pcie(dev)) {
2070 sc->bge_flags |= BGE_FLAG_PCIE;
2071 sc->bge_pciecap = pci_get_pciecap_ptr(sc->bge_dev);
2072 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
2076 * Check if the device is in PCI-X Mode.
2077 * (This bit is not valid on PCI Express controllers.)
2079 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) &
2080 BGE_PCISTATE_PCI_BUSMODE) == 0) {
2081 sc->bge_flags |= BGE_FLAG_PCIX;
2082 sc->bge_pcixcap = pci_get_pcixcap_ptr(sc->bge_dev);
2083 sc->bge_mbox_reorder = device_getenv_int(sc->bge_dev,
2087 device_printf(dev, "CHIP ID 0x%08x; "
2088 "ASIC REV 0x%02x; CHIP REV 0x%02x; %s\n",
2089 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev,
2090 (sc->bge_flags & BGE_FLAG_PCIX) ? "PCI-X"
2091 : ((sc->bge_flags & BGE_FLAG_PCIE) ?
2095 * The 40bit DMA bug applies to the 5714/5715 controllers and is
2096 * not actually a MAC controller bug but an issue with the embedded
2097 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround.
2099 if (BGE_IS_5714_FAMILY(sc) && (sc->bge_flags & BGE_FLAG_PCIX))
2100 sc->bge_flags |= BGE_FLAG_MAXADDR_40BIT;
2102 /* Identify the chips that use an CPMU. */
2103 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
2104 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
2105 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
2106 sc->bge_asicrev == BGE_ASICREV_BCM57780)
2107 sc->bge_flags |= BGE_FLAG_CPMU;
2110 * When using the BCM5701 in PCI-X mode, data corruption has
2111 * been observed in the first few bytes of some received packets.
2112 * Aligning the packet buffer in memory eliminates the corruption.
2113 * Unfortunately, this misaligns the packet payloads. On platforms
2114 * which do not support unaligned accesses, we will realign the
2115 * payloads by copying the received packets.
2117 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
2118 (sc->bge_flags & BGE_FLAG_PCIX))
2119 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG;
2121 if (!BGE_IS_CRIPPLED(sc)) {
2122 if (device_getenv_int(dev, "status_tag", 1)) {
2123 sc->bge_flags |= BGE_FLAG_STATUS_TAG;
2124 sc->bge_pci_miscctl = BGE_PCIMISCCTL_TAGGED_STATUS;
2126 device_printf(dev, "enable status tag\n");
2131 * Set various PHY quirk flags.
2133 product = pci_get_device(dev);
2134 vendor = pci_get_vendor(dev);
2136 if ((sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
2137 sc->bge_asicrev == BGE_ASICREV_BCM5701) &&
2138 pci_get_subvendor(dev) == PCI_VENDOR_DELL)
2139 mii_priv |= BRGPHY_FLAG_NO_3LED;
2141 capmask = MII_CAPMASK_DEFAULT;
2142 if ((sc->bge_asicrev == BGE_ASICREV_BCM5703 &&
2143 (misccfg == 0x4000 || misccfg == 0x8000)) ||
2144 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2145 vendor == PCI_VENDOR_BROADCOM &&
2146 (product == PCI_PRODUCT_BROADCOM_BCM5901 ||
2147 product == PCI_PRODUCT_BROADCOM_BCM5901A2 ||
2148 product == PCI_PRODUCT_BROADCOM_BCM5705F)) ||
2149 (vendor == PCI_VENDOR_BROADCOM &&
2150 (product == PCI_PRODUCT_BROADCOM_BCM5751F ||
2151 product == PCI_PRODUCT_BROADCOM_BCM5753F ||
2152 product == PCI_PRODUCT_BROADCOM_BCM5787F)) ||
2153 product == PCI_PRODUCT_BROADCOM_BCM57790 ||
2154 sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2156 capmask &= ~BMSR_EXTSTAT;
2159 mii_priv |= BRGPHY_FLAG_WIRESPEED;
2160 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
2161 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
2162 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
2163 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
2164 sc->bge_asicrev == BGE_ASICREV_BCM5906)
2165 mii_priv &= ~BRGPHY_FLAG_WIRESPEED;
2167 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 ||
2168 sc->bge_chipid == BGE_CHIPID_BCM5701_B0)
2169 mii_priv |= BRGPHY_FLAG_CRC_BUG;
2171 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX ||
2172 sc->bge_chiprev == BGE_CHIPREV_5704_AX)
2173 mii_priv |= BRGPHY_FLAG_ADC_BUG;
2175 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
2176 mii_priv |= BRGPHY_FLAG_5704_A0;
2178 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
2179 mii_priv |= BRGPHY_FLAG_5906;
2181 if (BGE_IS_5705_PLUS(sc) &&
2182 sc->bge_asicrev != BGE_ASICREV_BCM5906 &&
2183 /* sc->bge_asicrev != BGE_ASICREV_BCM5717 && */
2184 sc->bge_asicrev != BGE_ASICREV_BCM5785 &&
2185 /* sc->bge_asicrev != BGE_ASICREV_BCM57765 && */
2186 sc->bge_asicrev != BGE_ASICREV_BCM57780) {
2187 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 ||
2188 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
2189 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
2190 sc->bge_asicrev == BGE_ASICREV_BCM5787) {
2191 if (product != PCI_PRODUCT_BROADCOM_BCM5722 &&
2192 product != PCI_PRODUCT_BROADCOM_BCM5756)
2193 mii_priv |= BRGPHY_FLAG_JITTER_BUG;
2194 if (product == PCI_PRODUCT_BROADCOM_BCM5755M)
2195 mii_priv |= BRGPHY_FLAG_ADJUST_TRIM;
2197 mii_priv |= BRGPHY_FLAG_BER_BUG;
2201 /* Allocate interrupt */
2203 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
2204 RF_SHAREABLE | RF_ACTIVE);
2205 if (sc->bge_irq == NULL) {
2206 device_printf(dev, "couldn't map interrupt\n");
2211 /* Initialize if_name earlier, so if_printf could be used */
2212 ifp = &sc->arpcom.ac_if;
2213 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2215 /* Try to reset the chip. */
2218 if (bge_chipinit(sc)) {
2219 device_printf(dev, "chip initialization failed\n");
2225 * Get station address
2227 error = bge_get_eaddr(sc, ether_addr);
2229 device_printf(dev, "failed to read station address\n");
2233 /* 5705/5750 limits RX return ring to 512 entries. */
2234 if (BGE_IS_5705_PLUS(sc))
2235 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
2237 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
2239 error = bge_dma_alloc(sc);
2243 /* Set default tuneable values. */
2244 sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
2245 sc->bge_rx_coal_ticks = BGE_RX_COAL_TICKS_DEF;
2246 sc->bge_tx_coal_ticks = BGE_TX_COAL_TICKS_DEF;
2247 sc->bge_rx_coal_bds = BGE_RX_COAL_BDS_DEF;
2248 sc->bge_tx_coal_bds = BGE_TX_COAL_BDS_DEF;
2249 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2250 sc->bge_rx_coal_ticks_int = BGE_RX_COAL_TICKS_DEF;
2251 sc->bge_tx_coal_ticks_int = BGE_TX_COAL_TICKS_DEF;
2252 sc->bge_rx_coal_bds_int = BGE_RX_COAL_BDS_DEF;
2253 sc->bge_tx_coal_bds_int = BGE_TX_COAL_BDS_DEF;
2255 sc->bge_rx_coal_ticks_int = BGE_RX_COAL_TICKS_MIN;
2256 sc->bge_tx_coal_ticks_int = BGE_TX_COAL_TICKS_MIN;
2257 sc->bge_rx_coal_bds_int = BGE_RX_COAL_BDS_MIN;
2258 sc->bge_tx_coal_bds_int = BGE_TX_COAL_BDS_MIN;
2261 /* Set up ifnet structure */
2263 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2264 ifp->if_ioctl = bge_ioctl;
2265 ifp->if_start = bge_start;
2266 #ifdef DEVICE_POLLING
2267 ifp->if_poll = bge_poll;
2269 ifp->if_watchdog = bge_watchdog;
2270 ifp->if_init = bge_init;
2271 ifp->if_mtu = ETHERMTU;
2272 ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2273 ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
2274 ifq_set_ready(&ifp->if_snd);
2277 * 5700 B0 chips do not support checksumming correctly due
2280 if (sc->bge_chipid != BGE_CHIPID_BCM5700_B0) {
2281 ifp->if_capabilities |= IFCAP_HWCSUM;
2282 ifp->if_hwassist = BGE_CSUM_FEATURES;
2284 ifp->if_capenable = ifp->if_capabilities;
2287 * Figure out what sort of media we have by checking the
2288 * hardware config word in the first 32k of NIC internal memory,
2289 * or fall back to examining the EEPROM if necessary.
2290 * Note: on some BCM5700 cards, this value appears to be unset.
2291 * If that's the case, we have to rely on identifying the NIC
2292 * by its PCI subsystem ID, as we do below for the SysKonnect
2295 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) {
2296 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
2298 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
2300 device_printf(dev, "failed to read EEPROM\n");
2304 hwcfg = ntohl(hwcfg);
2307 /* The SysKonnect SK-9D41 is a 1000baseSX card. */
2308 if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41 ||
2309 (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) {
2310 if (BGE_IS_5714_FAMILY(sc))
2311 sc->bge_flags |= BGE_FLAG_MII_SERDES;
2313 sc->bge_flags |= BGE_FLAG_TBI;
2317 if (sc->bge_flags & BGE_FLAG_CPMU)
2318 sc->bge_mi_mode = BGE_MIMODE_500KHZ_CONST;
2320 sc->bge_mi_mode = BGE_MIMODE_BASE;
2321 if (BGE_IS_5700_FAMILY(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5705) {
2322 /* Enable auto polling for BCM570[0-5]. */
2323 sc->bge_mi_mode |= BGE_MIMODE_AUTOPOLL;
2326 /* Setup link status update stuffs */
2327 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
2328 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
2329 sc->bge_link_upd = bge_bcm5700_link_upd;
2330 sc->bge_link_chg = BGE_MACSTAT_MI_INTERRUPT;
2331 } else if (sc->bge_flags & BGE_FLAG_TBI) {
2332 sc->bge_link_upd = bge_tbi_link_upd;
2333 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2334 } else if (sc->bge_mi_mode & BGE_MIMODE_AUTOPOLL) {
2335 sc->bge_link_upd = bge_autopoll_link_upd;
2336 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2338 sc->bge_link_upd = bge_copper_link_upd;
2339 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2343 * Broadcom's own driver always assumes the internal
2344 * PHY is at GMII address 1. On some chips, the PHY responds
2345 * to accesses at all addresses, which could cause us to
2346 * bogusly attach the PHY 32 times at probe type. Always
2347 * restricting the lookup to address 1 is simpler than
2348 * trying to figure out which chips revisions should be
2353 if (sc->bge_flags & BGE_FLAG_TBI) {
2354 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK,
2355 bge_ifmedia_upd, bge_ifmedia_sts);
2356 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2357 ifmedia_add(&sc->bge_ifmedia,
2358 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2359 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2360 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
2361 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
2363 struct mii_probe_args mii_args;
2365 mii_probe_args_init(&mii_args, bge_ifmedia_upd, bge_ifmedia_sts);
2366 mii_args.mii_probemask = 1 << sc->bge_phyno;
2367 mii_args.mii_capmask = capmask;
2368 mii_args.mii_privtag = MII_PRIVTAG_BRGPHY;
2369 mii_args.mii_priv = mii_priv;
2371 error = mii_probe(dev, &sc->bge_miibus, &mii_args);
2373 device_printf(dev, "MII without any PHY!\n");
2379 * Create sysctl nodes.
2381 sysctl_ctx_init(&sc->bge_sysctl_ctx);
2382 sc->bge_sysctl_tree = SYSCTL_ADD_NODE(&sc->bge_sysctl_ctx,
2383 SYSCTL_STATIC_CHILDREN(_hw),
2385 device_get_nameunit(dev),
2387 if (sc->bge_sysctl_tree == NULL) {
2388 device_printf(dev, "can't add sysctl node\n");
2393 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2394 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2395 OID_AUTO, "rx_coal_ticks",
2396 CTLTYPE_INT | CTLFLAG_RW,
2397 sc, 0, bge_sysctl_rx_coal_ticks, "I",
2398 "Receive coalescing ticks (usec).");
2399 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2400 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2401 OID_AUTO, "tx_coal_ticks",
2402 CTLTYPE_INT | CTLFLAG_RW,
2403 sc, 0, bge_sysctl_tx_coal_ticks, "I",
2404 "Transmit coalescing ticks (usec).");
2405 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2406 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2407 OID_AUTO, "rx_coal_bds",
2408 CTLTYPE_INT | CTLFLAG_RW,
2409 sc, 0, bge_sysctl_rx_coal_bds, "I",
2410 "Receive max coalesced BD count.");
2411 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2412 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2413 OID_AUTO, "tx_coal_bds",
2414 CTLTYPE_INT | CTLFLAG_RW,
2415 sc, 0, bge_sysctl_tx_coal_bds, "I",
2416 "Transmit max coalesced BD count.");
2417 if (sc->bge_flags & BGE_FLAG_PCIE) {
2419 * A common design characteristic for many Broadcom
2420 * client controllers is that they only support a
2421 * single outstanding DMA read operation on the PCIe
2422 * bus. This means that it will take twice as long to
2423 * fetch a TX frame that is split into header and
2424 * payload buffers as it does to fetch a single,
2425 * contiguous TX frame (2 reads vs. 1 read). For these
2426 * controllers, coalescing buffers to reduce the number
2427 * of memory reads is effective way to get maximum
2428 * performance(about 940Mbps). Without collapsing TX
2429 * buffers the maximum TCP bulk transfer performance
2430 * is about 850Mbps. However forcing coalescing mbufs
2431 * consumes a lot of CPU cycles, so leave it off by
2434 SYSCTL_ADD_INT(&sc->bge_sysctl_ctx,
2435 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2436 OID_AUTO, "force_defrag", CTLFLAG_RW,
2437 &sc->bge_force_defrag, 0,
2438 "Force defragment on TX path");
2440 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2441 if (!BGE_IS_5705_PLUS(sc)) {
2442 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2443 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2444 "rx_coal_ticks_int", CTLTYPE_INT | CTLFLAG_RW,
2445 sc, 0, bge_sysctl_rx_coal_ticks_int, "I",
2446 "Receive coalescing ticks "
2447 "during interrupt (usec).");
2448 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2449 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2450 "tx_coal_ticks_int", CTLTYPE_INT | CTLFLAG_RW,
2451 sc, 0, bge_sysctl_tx_coal_ticks_int, "I",
2452 "Transmit coalescing ticks "
2453 "during interrupt (usec).");
2455 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2456 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2457 "rx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2458 sc, 0, bge_sysctl_rx_coal_bds_int, "I",
2459 "Receive max coalesced BD count during interrupt.");
2460 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2461 SYSCTL_CHILDREN(sc->bge_sysctl_tree), OID_AUTO,
2462 "tx_coal_bds_int", CTLTYPE_INT | CTLFLAG_RW,
2463 sc, 0, bge_sysctl_tx_coal_bds_int, "I",
2464 "Transmit max coalesced BD count during interrupt.");
2468 * Call MI attach routine.
2470 ether_ifattach(ifp, ether_addr, NULL);
2472 if (sc->bge_flags & BGE_FLAG_STATUS_TAG)
2473 intr_func = bge_intr_status_tag;
2475 intr_func = bge_intr;
2477 error = bus_setup_intr(dev, sc->bge_irq, INTR_MPSAFE, intr_func, sc,
2478 &sc->bge_intrhand, ifp->if_serializer);
2480 ether_ifdetach(ifp);
2481 device_printf(dev, "couldn't set up irq\n");
2485 ifp->if_cpuid = rman_get_cpuid(sc->bge_irq);
2486 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
2495 bge_detach(device_t dev)
2497 struct bge_softc *sc = device_get_softc(dev);
2499 if (device_is_attached(dev)) {
2500 struct ifnet *ifp = &sc->arpcom.ac_if;
2502 lwkt_serialize_enter(ifp->if_serializer);
2505 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand);
2506 lwkt_serialize_exit(ifp->if_serializer);
2508 ether_ifdetach(ifp);
2511 if (sc->bge_flags & BGE_FLAG_TBI)
2512 ifmedia_removeall(&sc->bge_ifmedia);
2514 device_delete_child(dev, sc->bge_miibus);
2515 bus_generic_detach(dev);
2517 if (sc->bge_irq != NULL)
2518 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq);
2520 if (sc->bge_res != NULL)
2521 bus_release_resource(dev, SYS_RES_MEMORY,
2522 BGE_PCI_BAR0, sc->bge_res);
2524 if (sc->bge_sysctl_tree != NULL)
2525 sysctl_ctx_free(&sc->bge_sysctl_ctx);
2533 bge_reset(struct bge_softc *sc)
2536 uint32_t cachesize, command, pcistate, reset;
2537 void (*write_op)(struct bge_softc *, uint32_t, uint32_t);
2542 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) &&
2543 sc->bge_asicrev != BGE_ASICREV_BCM5906) {
2544 if (sc->bge_flags & BGE_FLAG_PCIE)
2545 write_op = bge_writemem_direct;
2547 write_op = bge_writemem_ind;
2549 write_op = bge_writereg_ind;
2552 /* Save some important PCI state. */
2553 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2554 command = pci_read_config(dev, BGE_PCI_CMD, 4);
2555 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2557 pci_write_config(dev, BGE_PCI_MISC_CTL,
2558 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2559 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2560 sc->bge_pci_miscctl, 4);
2562 /* Disable fastboot on controllers that support it. */
2563 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 ||
2564 BGE_IS_5755_PLUS(sc)) {
2566 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2567 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2571 * Write the magic number to SRAM at offset 0xB50.
2572 * When firmware finishes its initialization it will
2573 * write ~BGE_MAGIC_NUMBER to the same location.
2575 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2577 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2579 /* XXX: Broadcom Linux driver. */
2580 if (sc->bge_flags & BGE_FLAG_PCIE) {
2581 if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */
2582 CSR_WRITE_4(sc, 0x7e2c, 0x20);
2583 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2584 /* Prevent PCIE link training during global reset */
2585 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2591 * Set GPHY Power Down Override to leave GPHY
2592 * powered up in D0 uninitialized.
2594 if (BGE_IS_5705_PLUS(sc) && (sc->bge_flags & BGE_FLAG_CPMU) == 0)
2595 reset |= BGE_MISCCFG_GPHY_PD_OVERRIDE;
2597 /* Issue global reset */
2598 write_op(sc, BGE_MISC_CFG, reset);
2600 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2601 uint32_t status, ctrl;
2603 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2604 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2605 status | BGE_VCPU_STATUS_DRV_RESET);
2606 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2607 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2608 ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2613 /* XXX: Broadcom Linux driver. */
2614 if (sc->bge_flags & BGE_FLAG_PCIE) {
2617 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
2620 DELAY(500000); /* wait for link training to complete */
2621 v = pci_read_config(dev, 0xc4, 4);
2622 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2625 /* Clear enable no snoop and disable relaxed ordering. */
2626 devctl = pci_read_config(dev,
2627 sc->bge_pciecap + PCIER_DEVCTRL, 2);
2628 devctl &= ~(PCIEM_DEVCTL_RELAX_ORDER | PCIEM_DEVCTL_NOSNOOP);
2629 pci_write_config(dev, sc->bge_pciecap + PCIER_DEVCTRL,
2632 /* Clear error status. */
2633 pci_write_config(dev, sc->bge_pciecap + PCIER_DEVSTS,
2634 PCIEM_DEVSTS_CORR_ERR |
2635 PCIEM_DEVSTS_NFATAL_ERR |
2636 PCIEM_DEVSTS_FATAL_ERR |
2637 PCIEM_DEVSTS_UNSUPP_REQ, 2);
2640 /* Reset some of the PCI state that got zapped by reset */
2641 pci_write_config(dev, BGE_PCI_MISC_CTL,
2642 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2643 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW|
2644 sc->bge_pci_miscctl, 4);
2645 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2646 pci_write_config(dev, BGE_PCI_CMD, command, 4);
2647 write_op(sc, BGE_MISC_CFG, (65 << 1));
2650 * Disable PCI-X relaxed ordering to ensure status block update
2651 * comes first then packet buffer DMA. Otherwise driver may
2652 * read stale status block.
2654 if (sc->bge_flags & BGE_FLAG_PCIX) {
2657 devctl = pci_read_config(dev,
2658 sc->bge_pcixcap + PCIXR_COMMAND, 2);
2659 devctl &= ~PCIXM_COMMAND_ERO;
2660 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
2661 devctl &= ~PCIXM_COMMAND_MAX_READ;
2662 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2663 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
2664 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS |
2665 PCIXM_COMMAND_MAX_READ);
2666 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2668 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND,
2672 /* Enable memory arbiter. */
2673 if (BGE_IS_5714_FAMILY(sc)) {
2676 val = CSR_READ_4(sc, BGE_MARB_MODE);
2677 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
2679 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2682 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2683 for (i = 0; i < BGE_TIMEOUT; i++) {
2684 val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2685 if (val & BGE_VCPU_STATUS_INIT_DONE)
2689 if (i == BGE_TIMEOUT) {
2690 if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2695 * Poll until we see the 1's complement of the magic number.
2696 * This indicates that the firmware initialization
2699 for (i = 0; i < BGE_FIRMWARE_TIMEOUT; i++) {
2700 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2701 if (val == ~BGE_MAGIC_NUMBER)
2705 if (i == BGE_FIRMWARE_TIMEOUT) {
2706 if_printf(&sc->arpcom.ac_if, "firmware handshake "
2707 "timed out, found 0x%08x\n", val);
2713 * XXX Wait for the value of the PCISTATE register to
2714 * return to its original pre-reset state. This is a
2715 * fairly good indicator of reset completion. If we don't
2716 * wait for the reset to fully complete, trying to read
2717 * from the device's non-PCI registers may yield garbage
2720 for (i = 0; i < BGE_TIMEOUT; i++) {
2721 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2726 /* Fix up byte swapping */
2727 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS |
2728 BGE_MODECTL_BYTESWAP_DATA);
2730 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2733 * The 5704 in TBI mode apparently needs some special
2734 * adjustment to insure the SERDES drive level is set
2737 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 &&
2738 (sc->bge_flags & BGE_FLAG_TBI)) {
2741 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2742 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2743 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2746 /* XXX: Broadcom Linux driver. */
2747 if ((sc->bge_flags & BGE_FLAG_PCIE) &&
2748 sc->bge_chipid != BGE_CHIPID_BCM5750_A0 &&
2749 sc->bge_asicrev != BGE_ASICREV_BCM5785) {
2752 /* Enable Data FIFO protection. */
2753 v = CSR_READ_4(sc, 0x7c00);
2754 CSR_WRITE_4(sc, 0x7c00, v | (1<<25));
2761 * Frame reception handling. This is called if there's a frame
2762 * on the receive return list.
2764 * Note: we have to be able to handle two possibilities here:
2765 * 1) the frame is from the jumbo recieve ring
2766 * 2) the frame is from the standard receive ring
2770 bge_rxeof(struct bge_softc *sc, uint16_t rx_prod)
2773 int stdcnt = 0, jumbocnt = 0;
2775 ifp = &sc->arpcom.ac_if;
2777 while (sc->bge_rx_saved_considx != rx_prod) {
2778 struct bge_rx_bd *cur_rx;
2780 struct mbuf *m = NULL;
2781 uint16_t vlan_tag = 0;
2785 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx];
2787 rxidx = cur_rx->bge_idx;
2788 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
2791 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2793 vlan_tag = cur_rx->bge_vlan_tag;
2796 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2797 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
2800 if (rxidx != sc->bge_jumbo) {
2802 if_printf(ifp, "sw jumbo index(%d) "
2803 "and hw jumbo index(%d) mismatch, drop!\n",
2804 sc->bge_jumbo, rxidx);
2805 bge_setup_rxdesc_jumbo(sc, rxidx);
2809 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx].bge_mbuf;
2810 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2812 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2815 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 0)) {
2817 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2821 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
2824 if (rxidx != sc->bge_std) {
2826 if_printf(ifp, "sw std index(%d) "
2827 "and hw std index(%d) mismatch, drop!\n",
2828 sc->bge_std, rxidx);
2829 bge_setup_rxdesc_std(sc, rxidx);
2833 m = sc->bge_cdata.bge_rx_std_chain[rxidx].bge_mbuf;
2834 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2836 bge_setup_rxdesc_std(sc, sc->bge_std);
2839 if (bge_newbuf_std(sc, sc->bge_std, 0)) {
2841 bge_setup_rxdesc_std(sc, sc->bge_std);
2847 #if !defined(__i386__) && !defined(__x86_64__)
2849 * The x86 allows unaligned accesses, but for other
2850 * platforms we must make sure the payload is aligned.
2852 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) {
2853 bcopy(m->m_data, m->m_data + ETHER_ALIGN,
2855 m->m_data += ETHER_ALIGN;
2858 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2859 m->m_pkthdr.rcvif = ifp;
2861 if (ifp->if_capenable & IFCAP_RXCSUM) {
2862 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2863 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2864 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
2865 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2867 if ((cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) &&
2868 m->m_pkthdr.len >= BGE_MIN_FRAME) {
2869 m->m_pkthdr.csum_data =
2870 cur_rx->bge_tcp_udp_csum;
2871 m->m_pkthdr.csum_flags |=
2872 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
2877 * If we received a packet with a vlan tag, pass it
2878 * to vlan_input() instead of ether_input().
2881 m->m_flags |= M_VLANTAG;
2882 m->m_pkthdr.ether_vlantag = vlan_tag;
2883 have_tag = vlan_tag = 0;
2885 ifp->if_input(ifp, m);
2888 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
2890 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
2892 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
2896 bge_txeof(struct bge_softc *sc, uint16_t tx_cons)
2898 struct bge_tx_bd *cur_tx = NULL;
2901 ifp = &sc->arpcom.ac_if;
2904 * Go through our tx ring and free mbufs for those
2905 * frames that have been sent.
2907 while (sc->bge_tx_saved_considx != tx_cons) {
2910 idx = sc->bge_tx_saved_considx;
2911 cur_tx = &sc->bge_ldata.bge_tx_ring[idx];
2912 if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
2914 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) {
2915 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
2916 sc->bge_cdata.bge_tx_dmamap[idx]);
2917 m_freem(sc->bge_cdata.bge_tx_chain[idx]);
2918 sc->bge_cdata.bge_tx_chain[idx] = NULL;
2921 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
2925 if (cur_tx != NULL &&
2926 (BGE_TX_RING_CNT - sc->bge_txcnt) >=
2927 (BGE_NSEG_RSVD + BGE_NSEG_SPARE))
2928 ifp->if_flags &= ~IFF_OACTIVE;
2930 if (sc->bge_txcnt == 0)
2933 if (!ifq_is_empty(&ifp->if_snd))
2937 #ifdef DEVICE_POLLING
2940 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
2942 struct bge_softc *sc = ifp->if_softc;
2943 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
2944 uint16_t rx_prod, tx_cons;
2948 bge_disable_intr(sc);
2950 case POLL_DEREGISTER:
2951 bge_enable_intr(sc);
2953 case POLL_AND_CHECK_STATUS:
2955 * Process link state changes.
2960 if (sc->bge_flags & BGE_FLAG_STATUS_TAG) {
2961 sc->bge_status_tag = sblk->bge_status_tag;
2963 * Use a load fence to ensure that status_tag
2964 * is saved before rx_prod and tx_cons.
2968 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
2969 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
2970 if (ifp->if_flags & IFF_RUNNING) {
2971 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
2972 if (sc->bge_rx_saved_considx != rx_prod)
2973 bge_rxeof(sc, rx_prod);
2975 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
2976 if (sc->bge_tx_saved_considx != tx_cons)
2977 bge_txeof(sc, tx_cons);
2988 struct bge_softc *sc = xsc;
2989 struct ifnet *ifp = &sc->arpcom.ac_if;
2994 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't
2995 * disable interrupts by writing nonzero like we used to, since with
2996 * our current organization this just gives complications and
2997 * pessimizations for re-enabling interrupts. We used to have races
2998 * instead of the necessary complications. Disabling interrupts
2999 * would just reduce the chance of a status update while we are
3000 * running (by switching to the interrupt-mode coalescence
3001 * parameters), but this chance is already very low so it is more
3002 * efficient to get another interrupt than prevent it.
3004 * We do the ack first to ensure another interrupt if there is a
3005 * status update after the ack. We don't check for the status
3006 * changing later because it is more efficient to get another
3007 * interrupt than prevent it, not quite as above (not checking is
3008 * a smaller optimization than not toggling the interrupt enable,
3009 * since checking doesn't involve PCI accesses and toggling require
3010 * the status check). So toggling would probably be a pessimization
3011 * even with MSI. It would only be needed for using a task queue.
3013 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
3016 * Process link state changes.
3020 if (ifp->if_flags & IFF_RUNNING) {
3021 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3022 uint16_t rx_prod, tx_cons;
3024 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
3025 if (sc->bge_rx_saved_considx != rx_prod)
3026 bge_rxeof(sc, rx_prod);
3028 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
3029 if (sc->bge_tx_saved_considx != tx_cons)
3030 bge_txeof(sc, tx_cons);
3033 if (sc->bge_coal_chg)
3034 bge_coal_change(sc);
3038 bge_intr_status_tag(void *xsc)
3040 struct bge_softc *sc = xsc;
3041 struct ifnet *ifp = &sc->arpcom.ac_if;
3042 struct bge_status_block *sblk = sc->bge_ldata.bge_status_block;
3043 uint16_t rx_prod, tx_cons;
3046 if (sc->bge_status_tag == sblk->bge_status_tag) {
3049 val = pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4);
3050 if (val & BGE_PCISTAT_INTR_NOTACT)
3056 * Interrupt will have to be disabled if tagged status
3057 * is used, else interrupt will always be asserted on
3058 * certain chips (at least on BCM5750 AX/BX).
3060 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
3062 sc->bge_status_tag = sblk->bge_status_tag;
3064 * Use a load fence to ensure that status_tag is saved
3065 * before rx_prod, tx_cons and status.
3069 rx_prod = sblk->bge_idx[0].bge_rx_prod_idx;
3070 tx_cons = sblk->bge_idx[0].bge_tx_cons_idx;
3071 status = sblk->bge_status;
3073 if ((status & BGE_STATFLAG_LINKSTATE_CHANGED) || sc->bge_link_evt)
3076 if (ifp->if_flags & IFF_RUNNING) {
3077 if (sc->bge_rx_saved_considx != rx_prod)
3078 bge_rxeof(sc, rx_prod);
3080 if (sc->bge_tx_saved_considx != tx_cons)
3081 bge_txeof(sc, tx_cons);
3084 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
3086 if (sc->bge_coal_chg)
3087 bge_coal_change(sc);
3093 struct bge_softc *sc = xsc;
3094 struct ifnet *ifp = &sc->arpcom.ac_if;
3096 lwkt_serialize_enter(ifp->if_serializer);
3098 if (BGE_IS_5705_PLUS(sc))
3099 bge_stats_update_regs(sc);
3101 bge_stats_update(sc);
3103 if (sc->bge_flags & BGE_FLAG_TBI) {
3105 * Since in TBI mode auto-polling can't be used we should poll
3106 * link status manually. Here we register pending link event
3107 * and trigger interrupt.
3110 if (BGE_IS_CRIPPLED(sc))
3111 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3113 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
3114 } else if (!sc->bge_link) {
3115 mii_tick(device_get_softc(sc->bge_miibus));
3118 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3120 lwkt_serialize_exit(ifp->if_serializer);
3124 bge_stats_update_regs(struct bge_softc *sc)
3126 struct ifnet *ifp = &sc->arpcom.ac_if;
3127 struct bge_mac_stats_regs stats;
3131 s = (uint32_t *)&stats;
3132 for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
3133 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
3137 ifp->if_collisions +=
3138 (stats.dot3StatsSingleCollisionFrames +
3139 stats.dot3StatsMultipleCollisionFrames +
3140 stats.dot3StatsExcessiveCollisions +
3141 stats.dot3StatsLateCollisions) -
3146 bge_stats_update(struct bge_softc *sc)
3148 struct ifnet *ifp = &sc->arpcom.ac_if;
3151 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
3153 #define READ_STAT(sc, stats, stat) \
3154 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
3156 ifp->if_collisions +=
3157 (READ_STAT(sc, stats,
3158 txstats.dot3StatsSingleCollisionFrames.bge_addr_lo) +
3159 READ_STAT(sc, stats,
3160 txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo) +
3161 READ_STAT(sc, stats,
3162 txstats.dot3StatsExcessiveCollisions.bge_addr_lo) +
3163 READ_STAT(sc, stats,
3164 txstats.dot3StatsLateCollisions.bge_addr_lo)) -
3170 ifp->if_collisions +=
3171 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames +
3172 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames +
3173 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions +
3174 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) -
3180 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
3181 * pointers to descriptors.
3184 bge_encap(struct bge_softc *sc, struct mbuf **m_head0, uint32_t *txidx)
3186 struct bge_tx_bd *d = NULL;
3187 uint16_t csum_flags = 0;
3188 bus_dma_segment_t segs[BGE_NSEG_NEW];
3190 int error, maxsegs, nsegs, idx, i;
3191 struct mbuf *m_head = *m_head0, *m_new;
3193 if (m_head->m_pkthdr.csum_flags) {
3194 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
3195 csum_flags |= BGE_TXBDFLAG_IP_CSUM;
3196 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
3197 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
3198 if (m_head->m_flags & M_LASTFRAG)
3199 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
3200 else if (m_head->m_flags & M_FRAG)
3201 csum_flags |= BGE_TXBDFLAG_IP_FRAG;
3205 map = sc->bge_cdata.bge_tx_dmamap[idx];
3207 maxsegs = (BGE_TX_RING_CNT - sc->bge_txcnt) - BGE_NSEG_RSVD;
3208 KASSERT(maxsegs >= BGE_NSEG_SPARE,
3209 ("not enough segments %d", maxsegs));
3211 if (maxsegs > BGE_NSEG_NEW)
3212 maxsegs = BGE_NSEG_NEW;
3215 * Pad outbound frame to BGE_MIN_FRAME for an unusual reason.
3216 * The bge hardware will pad out Tx runts to BGE_MIN_FRAME,
3217 * but when such padded frames employ the bge IP/TCP checksum
3218 * offload, the hardware checksum assist gives incorrect results
3219 * (possibly from incorporating its own padding into the UDP/TCP
3220 * checksum; who knows). If we pad such runts with zeros, the
3221 * onboard checksum comes out correct.
3223 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
3224 m_head->m_pkthdr.len < BGE_MIN_FRAME) {
3225 error = m_devpad(m_head, BGE_MIN_FRAME);
3230 if ((sc->bge_flags & BGE_FLAG_SHORTDMA) && m_head->m_next != NULL) {
3231 m_new = bge_defrag_shortdma(m_head);
3232 if (m_new == NULL) {
3236 *m_head0 = m_head = m_new;
3238 if (sc->bge_force_defrag && (sc->bge_flags & BGE_FLAG_PCIE) &&
3239 m_head->m_next != NULL) {
3241 * Forcefully defragment mbuf chain to overcome hardware
3242 * limitation which only support a single outstanding
3243 * DMA read operation. If it fails, keep moving on using
3244 * the original mbuf chain.
3246 m_new = m_defrag(m_head, MB_DONTWAIT);
3248 *m_head0 = m_head = m_new;
3251 error = bus_dmamap_load_mbuf_defrag(sc->bge_cdata.bge_tx_mtag, map,
3252 m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
3257 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE);
3259 for (i = 0; ; i++) {
3260 d = &sc->bge_ldata.bge_tx_ring[idx];
3262 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
3263 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
3264 d->bge_len = segs[i].ds_len;
3265 d->bge_flags = csum_flags;
3269 BGE_INC(idx, BGE_TX_RING_CNT);
3271 /* Mark the last segment as end of packet... */
3272 d->bge_flags |= BGE_TXBDFLAG_END;
3274 /* Set vlan tag to the first segment of the packet. */
3275 d = &sc->bge_ldata.bge_tx_ring[*txidx];
3276 if (m_head->m_flags & M_VLANTAG) {
3277 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
3278 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
3280 d->bge_vlan_tag = 0;
3284 * Insure that the map for this transmission is placed at
3285 * the array index of the last descriptor in this chain.
3287 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx];
3288 sc->bge_cdata.bge_tx_dmamap[idx] = map;
3289 sc->bge_cdata.bge_tx_chain[idx] = m_head;
3290 sc->bge_txcnt += nsegs;
3292 BGE_INC(idx, BGE_TX_RING_CNT);
3303 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
3304 * to the mbuf data regions directly in the transmit descriptors.
3307 bge_start(struct ifnet *ifp)
3309 struct bge_softc *sc = ifp->if_softc;
3310 struct mbuf *m_head = NULL;
3314 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
3317 prodidx = sc->bge_tx_prodidx;
3320 while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
3321 m_head = ifq_dequeue(&ifp->if_snd, NULL);
3327 * The code inside the if() block is never reached since we
3328 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
3329 * requests to checksum TCP/UDP in a fragmented packet.
3332 * safety overkill. If this is a fragmented packet chain
3333 * with delayed TCP/UDP checksums, then only encapsulate
3334 * it if we have enough descriptors to handle the entire
3336 * (paranoia -- may not actually be needed)
3338 if ((m_head->m_flags & M_FIRSTFRAG) &&
3339 (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
3340 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3341 m_head->m_pkthdr.csum_data + BGE_NSEG_RSVD) {
3342 ifp->if_flags |= IFF_OACTIVE;
3343 ifq_prepend(&ifp->if_snd, m_head);
3349 * Sanity check: avoid coming within BGE_NSEG_RSVD
3350 * descriptors of the end of the ring. Also make
3351 * sure there are BGE_NSEG_SPARE descriptors for
3352 * jumbo buffers' defragmentation.
3354 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3355 (BGE_NSEG_RSVD + BGE_NSEG_SPARE)) {
3356 ifp->if_flags |= IFF_OACTIVE;
3357 ifq_prepend(&ifp->if_snd, m_head);
3362 * Pack the data into the transmit ring. If we
3363 * don't have room, set the OACTIVE flag and wait
3364 * for the NIC to drain the ring.
3366 if (bge_encap(sc, &m_head, &prodidx)) {
3367 ifp->if_flags |= IFF_OACTIVE;
3373 ETHER_BPF_MTAP(ifp, m_head);
3380 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3381 /* 5700 b2 errata */
3382 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
3383 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3385 sc->bge_tx_prodidx = prodidx;
3388 * Set a timeout in case the chip goes out to lunch.
3396 struct bge_softc *sc = xsc;
3397 struct ifnet *ifp = &sc->arpcom.ac_if;
3401 ASSERT_SERIALIZED(ifp->if_serializer);
3403 /* Cancel pending I/O and flush buffers. */
3409 * Init the various state machines, ring
3410 * control blocks and firmware.
3412 if (bge_blockinit(sc)) {
3413 if_printf(ifp, "initialization failure\n");
3419 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
3420 ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
3422 /* Load our MAC address. */
3423 m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
3424 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
3425 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
3427 /* Enable or disable promiscuous mode as needed. */
3430 /* Program multicast filter. */
3434 if (bge_init_rx_ring_std(sc)) {
3435 if_printf(ifp, "RX ring initialization failed\n");
3441 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
3442 * memory to insure that the chip has in fact read the first
3443 * entry of the ring.
3445 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
3447 for (i = 0; i < 10; i++) {
3449 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
3450 if (v == (MCLBYTES - ETHER_ALIGN))
3454 if_printf(ifp, "5705 A0 chip failed to load RX ring\n");
3457 /* Init jumbo RX ring. */
3458 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3459 if (bge_init_rx_ring_jumbo(sc)) {
3460 if_printf(ifp, "Jumbo RX ring initialization failed\n");
3466 /* Init our RX return ring index */
3467 sc->bge_rx_saved_considx = 0;
3470 bge_init_tx_ring(sc);
3472 /* Enable TX MAC state machine lockup fix. */
3473 mode = CSR_READ_4(sc, BGE_TX_MODE);
3474 if (BGE_IS_5755_PLUS(sc) || sc->bge_asicrev == BGE_ASICREV_BCM5906)
3475 mode |= BGE_TXMODE_MBUF_LOCKUP_FIX;
3476 /* Turn on transmitter */
3477 CSR_WRITE_4(sc, BGE_TX_MODE, mode | BGE_TXMODE_ENABLE);
3479 /* Turn on receiver */
3480 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3483 * Set the number of good frames to receive after RX MBUF
3484 * Low Watermark has been reached. After the RX MAC receives
3485 * this number of frames, it will drop subsequent incoming
3486 * frames until the MBUF High Watermark is reached.
3488 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2);
3490 /* Tell firmware we're alive. */
3491 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3493 /* Enable host interrupts if polling(4) is not enabled. */
3494 PCI_SETBIT(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA, 4);
3495 #ifdef DEVICE_POLLING
3496 if (ifp->if_flags & IFF_POLLING)
3497 bge_disable_intr(sc);
3500 bge_enable_intr(sc);
3502 bge_ifmedia_upd(ifp);
3504 ifp->if_flags |= IFF_RUNNING;
3505 ifp->if_flags &= ~IFF_OACTIVE;
3507 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3511 * Set media options.
3514 bge_ifmedia_upd(struct ifnet *ifp)
3516 struct bge_softc *sc = ifp->if_softc;
3518 /* If this is a 1000baseX NIC, enable the TBI port. */
3519 if (sc->bge_flags & BGE_FLAG_TBI) {
3520 struct ifmedia *ifm = &sc->bge_ifmedia;
3522 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3525 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3528 * The BCM5704 ASIC appears to have a special
3529 * mechanism for programming the autoneg
3530 * advertisement registers in TBI mode.
3532 if (!bge_fake_autoneg &&
3533 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3536 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
3537 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
3538 sgdig |= BGE_SGDIGCFG_AUTO |
3539 BGE_SGDIGCFG_PAUSE_CAP |
3540 BGE_SGDIGCFG_ASYM_PAUSE;
3541 CSR_WRITE_4(sc, BGE_SGDIG_CFG,
3542 sgdig | BGE_SGDIGCFG_SEND);
3544 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
3548 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3549 BGE_CLRBIT(sc, BGE_MAC_MODE,
3550 BGE_MACMODE_HALF_DUPLEX);
3552 BGE_SETBIT(sc, BGE_MAC_MODE,
3553 BGE_MACMODE_HALF_DUPLEX);
3560 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3564 if (mii->mii_instance) {
3565 struct mii_softc *miisc;
3567 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3568 mii_phy_reset(miisc);
3573 * Force an interrupt so that we will call bge_link_upd
3574 * if needed and clear any pending link state attention.
3575 * Without this we are not getting any further interrupts
3576 * for link state changes and thus will not UP the link and
3577 * not be able to send in bge_start. The only way to get
3578 * things working was to receive a packet and get an RX
3581 * bge_tick should help for fiber cards and we might not
3582 * need to do this here if BGE_FLAG_TBI is set but as
3583 * we poll for fiber anyway it should not harm.
3585 if (BGE_IS_CRIPPLED(sc))
3586 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3588 BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
3594 * Report current media status.
3597 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3599 struct bge_softc *sc = ifp->if_softc;
3601 if (sc->bge_flags & BGE_FLAG_TBI) {
3602 ifmr->ifm_status = IFM_AVALID;
3603 ifmr->ifm_active = IFM_ETHER;
3604 if (CSR_READ_4(sc, BGE_MAC_STS) &
3605 BGE_MACSTAT_TBI_PCS_SYNCHED) {
3606 ifmr->ifm_status |= IFM_ACTIVE;
3608 ifmr->ifm_active |= IFM_NONE;
3612 ifmr->ifm_active |= IFM_1000_SX;
3613 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3614 ifmr->ifm_active |= IFM_HDX;
3616 ifmr->ifm_active |= IFM_FDX;
3618 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3621 ifmr->ifm_active = mii->mii_media_active;
3622 ifmr->ifm_status = mii->mii_media_status;
3627 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3629 struct bge_softc *sc = ifp->if_softc;
3630 struct ifreq *ifr = (struct ifreq *)data;
3631 int mask, error = 0;
3633 ASSERT_SERIALIZED(ifp->if_serializer);
3637 if ((!BGE_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3638 (BGE_IS_JUMBO_CAPABLE(sc) &&
3639 ifr->ifr_mtu > BGE_JUMBO_MTU)) {
3641 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3642 ifp->if_mtu = ifr->ifr_mtu;
3643 if (ifp->if_flags & IFF_RUNNING)
3648 if (ifp->if_flags & IFF_UP) {
3649 if (ifp->if_flags & IFF_RUNNING) {
3650 mask = ifp->if_flags ^ sc->bge_if_flags;
3653 * If only the state of the PROMISC flag
3654 * changed, then just use the 'set promisc
3655 * mode' command instead of reinitializing
3656 * the entire NIC. Doing a full re-init
3657 * means reloading the firmware and waiting
3658 * for it to start up, which may take a
3659 * second or two. Similarly for ALLMULTI.
3661 if (mask & IFF_PROMISC)
3663 if (mask & IFF_ALLMULTI)
3668 } else if (ifp->if_flags & IFF_RUNNING) {
3671 sc->bge_if_flags = ifp->if_flags;
3675 if (ifp->if_flags & IFF_RUNNING)
3680 if (sc->bge_flags & BGE_FLAG_TBI) {
3681 error = ifmedia_ioctl(ifp, ifr,
3682 &sc->bge_ifmedia, command);
3684 struct mii_data *mii;
3686 mii = device_get_softc(sc->bge_miibus);
3687 error = ifmedia_ioctl(ifp, ifr,
3688 &mii->mii_media, command);
3692 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3693 if (mask & IFCAP_HWCSUM) {
3694 ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3695 if (IFCAP_HWCSUM & ifp->if_capenable)
3696 ifp->if_hwassist = BGE_CSUM_FEATURES;
3698 ifp->if_hwassist = 0;
3702 error = ether_ioctl(ifp, command, data);
3709 bge_watchdog(struct ifnet *ifp)
3711 struct bge_softc *sc = ifp->if_softc;
3713 if_printf(ifp, "watchdog timeout -- resetting\n");
3719 if (!ifq_is_empty(&ifp->if_snd))
3724 * Stop the adapter and free any mbufs allocated to the
3728 bge_stop(struct bge_softc *sc)
3730 struct ifnet *ifp = &sc->arpcom.ac_if;
3732 ASSERT_SERIALIZED(ifp->if_serializer);
3734 callout_stop(&sc->bge_stat_timer);
3737 * Disable all of the receiver blocks
3739 bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3740 bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3741 bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3742 if (BGE_IS_5700_FAMILY(sc))
3743 bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
3744 bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3745 bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3746 bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3749 * Disable all of the transmit blocks
3751 bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3752 bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3753 bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3754 bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3755 bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3756 if (BGE_IS_5700_FAMILY(sc))
3757 bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
3758 bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3761 * Shut down all of the memory managers and related
3764 bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3765 bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3766 if (BGE_IS_5700_FAMILY(sc))
3767 bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
3768 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3769 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3770 if (!BGE_IS_5705_PLUS(sc)) {
3771 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
3772 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
3775 /* Disable host interrupts. */
3776 bge_disable_intr(sc);
3779 * Tell firmware we're shutting down.
3781 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3783 /* Free the RX lists. */
3784 bge_free_rx_ring_std(sc);
3786 /* Free jumbo RX list. */
3787 if (BGE_IS_JUMBO_CAPABLE(sc))
3788 bge_free_rx_ring_jumbo(sc);
3790 /* Free TX buffers. */
3791 bge_free_tx_ring(sc);
3793 sc->bge_status_tag = 0;
3795 sc->bge_coal_chg = 0;
3797 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
3799 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3804 * Stop all chip I/O so that the kernel's probe routines don't
3805 * get confused by errant DMAs when rebooting.
3808 bge_shutdown(device_t dev)
3810 struct bge_softc *sc = device_get_softc(dev);
3811 struct ifnet *ifp = &sc->arpcom.ac_if;
3813 lwkt_serialize_enter(ifp->if_serializer);
3816 lwkt_serialize_exit(ifp->if_serializer);
3820 bge_suspend(device_t dev)
3822 struct bge_softc *sc = device_get_softc(dev);
3823 struct ifnet *ifp = &sc->arpcom.ac_if;
3825 lwkt_serialize_enter(ifp->if_serializer);
3827 lwkt_serialize_exit(ifp->if_serializer);
3833 bge_resume(device_t dev)
3835 struct bge_softc *sc = device_get_softc(dev);
3836 struct ifnet *ifp = &sc->arpcom.ac_if;
3838 lwkt_serialize_enter(ifp->if_serializer);
3840 if (ifp->if_flags & IFF_UP) {
3843 if (!ifq_is_empty(&ifp->if_snd))
3847 lwkt_serialize_exit(ifp->if_serializer);
3853 bge_setpromisc(struct bge_softc *sc)
3855 struct ifnet *ifp = &sc->arpcom.ac_if;
3857 if (ifp->if_flags & IFF_PROMISC)
3858 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3860 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3864 bge_dma_free(struct bge_softc *sc)
3868 /* Destroy RX mbuf DMA stuffs. */
3869 if (sc->bge_cdata.bge_rx_mtag != NULL) {
3870 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3871 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3872 sc->bge_cdata.bge_rx_std_dmamap[i]);
3874 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3875 sc->bge_cdata.bge_rx_tmpmap);
3876 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3879 /* Destroy TX mbuf DMA stuffs. */
3880 if (sc->bge_cdata.bge_tx_mtag != NULL) {
3881 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3882 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3883 sc->bge_cdata.bge_tx_dmamap[i]);
3885 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3888 /* Destroy standard RX ring */
3889 bge_dma_block_free(sc->bge_cdata.bge_rx_std_ring_tag,
3890 sc->bge_cdata.bge_rx_std_ring_map,
3891 sc->bge_ldata.bge_rx_std_ring);
3893 if (BGE_IS_JUMBO_CAPABLE(sc))
3894 bge_free_jumbo_mem(sc);
3896 /* Destroy RX return ring */
3897 bge_dma_block_free(sc->bge_cdata.bge_rx_return_ring_tag,
3898 sc->bge_cdata.bge_rx_return_ring_map,
3899 sc->bge_ldata.bge_rx_return_ring);
3901 /* Destroy TX ring */
3902 bge_dma_block_free(sc->bge_cdata.bge_tx_ring_tag,
3903 sc->bge_cdata.bge_tx_ring_map,
3904 sc->bge_ldata.bge_tx_ring);
3906 /* Destroy status block */
3907 bge_dma_block_free(sc->bge_cdata.bge_status_tag,
3908 sc->bge_cdata.bge_status_map,
3909 sc->bge_ldata.bge_status_block);
3911 /* Destroy statistics block */
3912 bge_dma_block_free(sc->bge_cdata.bge_stats_tag,
3913 sc->bge_cdata.bge_stats_map,
3914 sc->bge_ldata.bge_stats);
3916 /* Destroy the parent tag */
3917 if (sc->bge_cdata.bge_parent_tag != NULL)
3918 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag);
3922 bge_dma_alloc(struct bge_softc *sc)
3924 struct ifnet *ifp = &sc->arpcom.ac_if;
3928 lowaddr = BUS_SPACE_MAXADDR;
3929 if (sc->bge_flags & BGE_FLAG_MAXADDR_40BIT)
3930 lowaddr = BGE_DMA_MAXADDR_40BIT;
3933 * Allocate the parent bus DMA tag appropriate for PCI.
3935 * All of the NetExtreme/NetLink controllers have 4GB boundary
3937 * Whenever an address crosses a multiple of the 4GB boundary
3938 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
3939 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
3940 * state machine will lockup and cause the device to hang.
3942 error = bus_dma_tag_create(NULL, 1, BGE_DMA_BOUNDARY_4G,
3943 lowaddr, BUS_SPACE_MAXADDR,
3945 BUS_SPACE_MAXSIZE_32BIT, 0,
3946 BUS_SPACE_MAXSIZE_32BIT,
3947 0, &sc->bge_cdata.bge_parent_tag);
3949 if_printf(ifp, "could not allocate parent dma tag\n");
3954 * Create DMA tag and maps for RX mbufs.
3956 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3957 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3958 NULL, NULL, MCLBYTES, 1, MCLBYTES,
3959 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
3960 &sc->bge_cdata.bge_rx_mtag);
3962 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
3966 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3967 BUS_DMA_WAITOK, &sc->bge_cdata.bge_rx_tmpmap);
3969 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3970 sc->bge_cdata.bge_rx_mtag = NULL;
3974 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3975 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3977 &sc->bge_cdata.bge_rx_std_dmamap[i]);
3981 for (j = 0; j < i; ++j) {
3982 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3983 sc->bge_cdata.bge_rx_std_dmamap[j]);
3985 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3986 sc->bge_cdata.bge_rx_mtag = NULL;
3988 if_printf(ifp, "could not create DMA map for RX\n");
3994 * Create DMA tag and maps for TX mbufs.
3996 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3997 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3999 BGE_JUMBO_FRAMELEN, BGE_NSEG_NEW, MCLBYTES,
4000 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
4002 &sc->bge_cdata.bge_tx_mtag);
4004 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
4008 for (i = 0; i < BGE_TX_RING_CNT; i++) {
4009 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag,
4010 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
4011 &sc->bge_cdata.bge_tx_dmamap[i]);
4015 for (j = 0; j < i; ++j) {
4016 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
4017 sc->bge_cdata.bge_tx_dmamap[j]);
4019 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
4020 sc->bge_cdata.bge_tx_mtag = NULL;
4022 if_printf(ifp, "could not create DMA map for TX\n");
4028 * Create DMA stuffs for standard RX ring.
4030 error = bge_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
4031 &sc->bge_cdata.bge_rx_std_ring_tag,
4032 &sc->bge_cdata.bge_rx_std_ring_map,
4033 (void *)&sc->bge_ldata.bge_rx_std_ring,
4034 &sc->bge_ldata.bge_rx_std_ring_paddr);
4036 if_printf(ifp, "could not create std RX ring\n");
4041 * Create jumbo buffer pool.
4043 if (BGE_IS_JUMBO_CAPABLE(sc)) {
4044 error = bge_alloc_jumbo_mem(sc);
4046 if_printf(ifp, "could not create jumbo buffer pool\n");
4052 * Create DMA stuffs for RX return ring.
4054 error = bge_dma_block_alloc(sc, BGE_RX_RTN_RING_SZ(sc),
4055 &sc->bge_cdata.bge_rx_return_ring_tag,
4056 &sc->bge_cdata.bge_rx_return_ring_map,
4057 (void *)&sc->bge_ldata.bge_rx_return_ring,
4058 &sc->bge_ldata.bge_rx_return_ring_paddr);
4060 if_printf(ifp, "could not create RX ret ring\n");
4065 * Create DMA stuffs for TX ring.
4067 error = bge_dma_block_alloc(sc, BGE_TX_RING_SZ,
4068 &sc->bge_cdata.bge_tx_ring_tag,
4069 &sc->bge_cdata.bge_tx_ring_map,
4070 (void *)&sc->bge_ldata.bge_tx_ring,
4071 &sc->bge_ldata.bge_tx_ring_paddr);
4073 if_printf(ifp, "could not create TX ring\n");
4078 * Create DMA stuffs for status block.
4080 error = bge_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
4081 &sc->bge_cdata.bge_status_tag,
4082 &sc->bge_cdata.bge_status_map,
4083 (void *)&sc->bge_ldata.bge_status_block,
4084 &sc->bge_ldata.bge_status_block_paddr);
4086 if_printf(ifp, "could not create status block\n");
4091 * Create DMA stuffs for statistics block.
4093 error = bge_dma_block_alloc(sc, BGE_STATS_SZ,
4094 &sc->bge_cdata.bge_stats_tag,
4095 &sc->bge_cdata.bge_stats_map,
4096 (void *)&sc->bge_ldata.bge_stats,
4097 &sc->bge_ldata.bge_stats_paddr);
4099 if_printf(ifp, "could not create stats block\n");
4106 bge_dma_block_alloc(struct bge_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
4107 bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
4112 error = bus_dmamem_coherent(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0,
4113 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
4114 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
4118 *tag = dmem.dmem_tag;
4119 *map = dmem.dmem_map;
4120 *addr = dmem.dmem_addr;
4121 *paddr = dmem.dmem_busaddr;
4127 bge_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
4130 bus_dmamap_unload(tag, map);
4131 bus_dmamem_free(tag, addr, map);
4132 bus_dma_tag_destroy(tag);
4137 * Grrr. The link status word in the status block does
4138 * not work correctly on the BCM5700 rev AX and BX chips,
4139 * according to all available information. Hence, we have
4140 * to enable MII interrupts in order to properly obtain
4141 * async link changes. Unfortunately, this also means that
4142 * we have to read the MAC status register to detect link
4143 * changes, thereby adding an additional register access to
4144 * the interrupt handler.
4146 * XXX: perhaps link state detection procedure used for
4147 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions.
4150 bge_bcm5700_link_upd(struct bge_softc *sc, uint32_t status __unused)
4152 struct ifnet *ifp = &sc->arpcom.ac_if;
4153 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4157 if (!sc->bge_link &&
4158 (mii->mii_media_status & IFM_ACTIVE) &&
4159 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
4162 if_printf(ifp, "link UP\n");
4163 } else if (sc->bge_link &&
4164 (!(mii->mii_media_status & IFM_ACTIVE) ||
4165 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
4168 if_printf(ifp, "link DOWN\n");
4171 /* Clear the interrupt. */
4172 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT);
4173 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR);
4174 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS);
4178 bge_tbi_link_upd(struct bge_softc *sc, uint32_t status)
4180 struct ifnet *ifp = &sc->arpcom.ac_if;
4182 #define PCS_ENCODE_ERR (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
4185 * Sometimes PCS encoding errors are detected in
4186 * TBI mode (on fiber NICs), and for some reason
4187 * the chip will signal them as link changes.
4188 * If we get a link change event, but the 'PCS
4189 * encoding error' bit in the MAC status register
4190 * is set, don't bother doing a link check.
4191 * This avoids spurious "gigabit link up" messages
4192 * that sometimes appear on fiber NICs during
4193 * periods of heavy traffic.
4195 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
4196 if (!sc->bge_link) {
4198 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
4199 BGE_CLRBIT(sc, BGE_MAC_MODE,
4200 BGE_MACMODE_TBI_SEND_CFGS);
4202 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
4205 if_printf(ifp, "link UP\n");
4207 ifp->if_link_state = LINK_STATE_UP;
4208 if_link_state_change(ifp);
4210 } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
4215 if_printf(ifp, "link DOWN\n");
4217 ifp->if_link_state = LINK_STATE_DOWN;
4218 if_link_state_change(ifp);
4222 #undef PCS_ENCODE_ERR
4224 /* Clear the attention. */
4225 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4226 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4227 BGE_MACSTAT_LINK_CHANGED);
4231 bge_copper_link_upd(struct bge_softc *sc, uint32_t status __unused)
4233 struct ifnet *ifp = &sc->arpcom.ac_if;
4234 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4237 bge_miibus_statchg(sc->bge_dev);
4241 if_printf(ifp, "link UP\n");
4243 if_printf(ifp, "link DOWN\n");
4246 /* Clear the attention. */
4247 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4248 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4249 BGE_MACSTAT_LINK_CHANGED);
4253 bge_autopoll_link_upd(struct bge_softc *sc, uint32_t status __unused)
4255 struct ifnet *ifp = &sc->arpcom.ac_if;
4256 struct mii_data *mii = device_get_softc(sc->bge_miibus);
4260 if (!sc->bge_link &&
4261 (mii->mii_media_status & IFM_ACTIVE) &&
4262 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
4265 if_printf(ifp, "link UP\n");
4266 } else if (sc->bge_link &&
4267 (!(mii->mii_media_status & IFM_ACTIVE) ||
4268 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
4271 if_printf(ifp, "link DOWN\n");
4274 /* Clear the attention. */
4275 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
4276 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
4277 BGE_MACSTAT_LINK_CHANGED);
4281 bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
4283 struct bge_softc *sc = arg1;
4285 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4286 &sc->bge_rx_coal_ticks,
4287 BGE_RX_COAL_TICKS_MIN, BGE_RX_COAL_TICKS_MAX,
4288 BGE_RX_COAL_TICKS_CHG);
4292 bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
4294 struct bge_softc *sc = arg1;
4296 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4297 &sc->bge_tx_coal_ticks,
4298 BGE_TX_COAL_TICKS_MIN, BGE_TX_COAL_TICKS_MAX,
4299 BGE_TX_COAL_TICKS_CHG);
4303 bge_sysctl_rx_coal_bds(SYSCTL_HANDLER_ARGS)
4305 struct bge_softc *sc = arg1;
4307 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4308 &sc->bge_rx_coal_bds,
4309 BGE_RX_COAL_BDS_MIN, BGE_RX_COAL_BDS_MAX,
4310 BGE_RX_COAL_BDS_CHG);
4314 bge_sysctl_tx_coal_bds(SYSCTL_HANDLER_ARGS)
4316 struct bge_softc *sc = arg1;
4318 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4319 &sc->bge_tx_coal_bds,
4320 BGE_TX_COAL_BDS_MIN, BGE_TX_COAL_BDS_MAX,
4321 BGE_TX_COAL_BDS_CHG);
4325 bge_sysctl_rx_coal_ticks_int(SYSCTL_HANDLER_ARGS)
4327 struct bge_softc *sc = arg1;
4329 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4330 &sc->bge_rx_coal_ticks_int,
4331 BGE_RX_COAL_TICKS_MIN, BGE_RX_COAL_TICKS_MAX,
4332 BGE_RX_COAL_TICKS_INT_CHG);
4336 bge_sysctl_tx_coal_ticks_int(SYSCTL_HANDLER_ARGS)
4338 struct bge_softc *sc = arg1;
4340 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4341 &sc->bge_tx_coal_ticks_int,
4342 BGE_TX_COAL_TICKS_MIN, BGE_TX_COAL_TICKS_MAX,
4343 BGE_TX_COAL_TICKS_INT_CHG);
4347 bge_sysctl_rx_coal_bds_int(SYSCTL_HANDLER_ARGS)
4349 struct bge_softc *sc = arg1;
4351 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4352 &sc->bge_rx_coal_bds_int,
4353 BGE_RX_COAL_BDS_MIN, BGE_RX_COAL_BDS_MAX,
4354 BGE_RX_COAL_BDS_INT_CHG);
4358 bge_sysctl_tx_coal_bds_int(SYSCTL_HANDLER_ARGS)
4360 struct bge_softc *sc = arg1;
4362 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
4363 &sc->bge_tx_coal_bds_int,
4364 BGE_TX_COAL_BDS_MIN, BGE_TX_COAL_BDS_MAX,
4365 BGE_TX_COAL_BDS_INT_CHG);
4369 bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
4370 int coal_min, int coal_max, uint32_t coal_chg_mask)
4372 struct bge_softc *sc = arg1;
4373 struct ifnet *ifp = &sc->arpcom.ac_if;
4376 lwkt_serialize_enter(ifp->if_serializer);
4379 error = sysctl_handle_int(oidp, &v, 0, req);
4380 if (!error && req->newptr != NULL) {
4381 if (v < coal_min || v > coal_max) {
4385 sc->bge_coal_chg |= coal_chg_mask;
4389 lwkt_serialize_exit(ifp->if_serializer);
4394 bge_coal_change(struct bge_softc *sc)
4396 struct ifnet *ifp = &sc->arpcom.ac_if;
4399 ASSERT_SERIALIZED(ifp->if_serializer);
4401 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_CHG) {
4402 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
4403 sc->bge_rx_coal_ticks);
4405 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
4408 if_printf(ifp, "rx_coal_ticks -> %u\n",
4409 sc->bge_rx_coal_ticks);
4413 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_CHG) {
4414 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
4415 sc->bge_tx_coal_ticks);
4417 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
4420 if_printf(ifp, "tx_coal_ticks -> %u\n",
4421 sc->bge_tx_coal_ticks);
4425 if (sc->bge_coal_chg & BGE_RX_COAL_BDS_CHG) {
4426 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
4427 sc->bge_rx_coal_bds);
4429 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
4432 if_printf(ifp, "rx_coal_bds -> %u\n",
4433 sc->bge_rx_coal_bds);
4437 if (sc->bge_coal_chg & BGE_TX_COAL_BDS_CHG) {
4438 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
4439 sc->bge_tx_coal_bds);
4441 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
4444 if_printf(ifp, "tx_max_coal_bds -> %u\n",
4445 sc->bge_tx_coal_bds);
4449 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_INT_CHG) {
4450 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT,
4451 sc->bge_rx_coal_ticks_int);
4453 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS_INT);
4456 if_printf(ifp, "rx_coal_ticks_int -> %u\n",
4457 sc->bge_rx_coal_ticks_int);
4461 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_INT_CHG) {
4462 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT,
4463 sc->bge_tx_coal_ticks_int);
4465 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS_INT);
4468 if_printf(ifp, "tx_coal_ticks_int -> %u\n",
4469 sc->bge_tx_coal_ticks_int);
4473 if (sc->bge_coal_chg & BGE_RX_COAL_BDS_INT_CHG) {
4474 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT,
4475 sc->bge_rx_coal_bds_int);
4477 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT);
4480 if_printf(ifp, "rx_coal_bds_int -> %u\n",
4481 sc->bge_rx_coal_bds_int);
4485 if (sc->bge_coal_chg & BGE_TX_COAL_BDS_INT_CHG) {
4486 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT,
4487 sc->bge_tx_coal_bds_int);
4489 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT);
4492 if_printf(ifp, "tx_coal_bds_int -> %u\n",
4493 sc->bge_tx_coal_bds_int);
4497 sc->bge_coal_chg = 0;
4501 bge_enable_intr(struct bge_softc *sc)
4503 struct ifnet *ifp = &sc->arpcom.ac_if;
4505 lwkt_serialize_handler_enable(ifp->if_serializer);
4510 bge_writembx(sc, BGE_MBX_IRQ0_LO, sc->bge_status_tag << 24);
4513 * Unmask the interrupt when we stop polling.
4515 PCI_CLRBIT(sc->bge_dev, BGE_PCI_MISC_CTL,
4516 BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
4519 * Trigger another interrupt, since above writing
4520 * to interrupt mailbox0 may acknowledge pending
4523 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
4527 bge_disable_intr(struct bge_softc *sc)
4529 struct ifnet *ifp = &sc->arpcom.ac_if;
4532 * Mask the interrupt when we start polling.
4534 PCI_SETBIT(sc->bge_dev, BGE_PCI_MISC_CTL,
4535 BGE_PCIMISCCTL_MASK_PCI_INTR, 4);
4538 * Acknowledge possible asserted interrupt.
4540 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
4542 lwkt_serialize_handler_disable(ifp->if_serializer);
4546 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[])
4551 mac_addr = bge_readmem_ind(sc, 0x0c14);
4552 if ((mac_addr >> 16) == 0x484b) {
4553 ether_addr[0] = (uint8_t)(mac_addr >> 8);
4554 ether_addr[1] = (uint8_t)mac_addr;
4555 mac_addr = bge_readmem_ind(sc, 0x0c18);
4556 ether_addr[2] = (uint8_t)(mac_addr >> 24);
4557 ether_addr[3] = (uint8_t)(mac_addr >> 16);
4558 ether_addr[4] = (uint8_t)(mac_addr >> 8);
4559 ether_addr[5] = (uint8_t)mac_addr;
4566 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[])
4568 int mac_offset = BGE_EE_MAC_OFFSET;
4570 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
4571 mac_offset = BGE_EE_MAC_OFFSET_5906;
4573 return bge_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4577 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[])
4579 if (sc->bge_flags & BGE_FLAG_NO_EEPROM)
4582 return bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4587 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[])
4589 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = {
4590 /* NOTE: Order is critical */
4592 bge_get_eaddr_nvram,
4593 bge_get_eaddr_eeprom,
4596 const bge_eaddr_fcn_t *func;
4598 for (func = bge_eaddr_funcs; *func != NULL; ++func) {
4599 if ((*func)(sc, eaddr) == 0)
4602 return (*func == NULL ? ENXIO : 0);
4606 * NOTE: 'm' is not freed upon failure
4609 bge_defrag_shortdma(struct mbuf *m)
4615 * If device receive two back-to-back send BDs with less than
4616 * or equal to 8 total bytes then the device may hang. The two
4617 * back-to-back send BDs must in the same frame for this failure
4618 * to occur. Scan mbuf chains and see whether two back-to-back
4619 * send BDs are there. If this is the case, allocate new mbuf
4620 * and copy the frame to workaround the silicon bug.
4622 for (n = m, found = 0; n != NULL; n = n->m_next) {
4633 n = m_defrag(m, MB_DONTWAIT);
4640 bge_stop_block(struct bge_softc *sc, bus_size_t reg, uint32_t bit)
4644 BGE_CLRBIT(sc, reg, bit);
4645 for (i = 0; i < BGE_TIMEOUT; i++) {
4646 if ((CSR_READ_4(sc, reg) & bit) == 0)
4653 bge_link_poll(struct bge_softc *sc)
4657 status = CSR_READ_4(sc, BGE_MAC_STS);
4658 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
4659 sc->bge_link_evt = 0;
4660 sc->bge_link_upd(sc, status);