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 | CSUM_UDP)
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)
281 typedef int (*bge_eaddr_fcn_t)(struct bge_softc *, uint8_t[]);
283 static int bge_probe(device_t);
284 static int bge_attach(device_t);
285 static int bge_detach(device_t);
286 static void bge_txeof(struct bge_softc *);
287 static void bge_rxeof(struct bge_softc *);
289 static void bge_tick(void *);
290 static void bge_stats_update(struct bge_softc *);
291 static void bge_stats_update_regs(struct bge_softc *);
292 static int bge_encap(struct bge_softc *, struct mbuf **, uint32_t *);
294 #ifdef DEVICE_POLLING
295 static void bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count);
297 static void bge_intr(void *);
298 static void bge_enable_intr(struct bge_softc *);
299 static void bge_disable_intr(struct bge_softc *);
300 static void bge_start(struct ifnet *);
301 static int bge_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
302 static void bge_init(void *);
303 static void bge_stop(struct bge_softc *);
304 static void bge_watchdog(struct ifnet *);
305 static void bge_shutdown(device_t);
306 static int bge_suspend(device_t);
307 static int bge_resume(device_t);
308 static int bge_ifmedia_upd(struct ifnet *);
309 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *);
311 static uint8_t bge_nvram_getbyte(struct bge_softc *, int, uint8_t *);
312 static int bge_read_nvram(struct bge_softc *, caddr_t, int, int);
314 static uint8_t bge_eeprom_getbyte(struct bge_softc *, uint32_t, uint8_t *);
315 static int bge_read_eeprom(struct bge_softc *, caddr_t, uint32_t, size_t);
317 static void bge_setmulti(struct bge_softc *);
318 static void bge_setpromisc(struct bge_softc *);
320 static int bge_alloc_jumbo_mem(struct bge_softc *);
321 static void bge_free_jumbo_mem(struct bge_softc *);
322 static struct bge_jslot
323 *bge_jalloc(struct bge_softc *);
324 static void bge_jfree(void *);
325 static void bge_jref(void *);
326 static int bge_newbuf_std(struct bge_softc *, int, int);
327 static int bge_newbuf_jumbo(struct bge_softc *, int, int);
328 static void bge_setup_rxdesc_std(struct bge_softc *, int);
329 static void bge_setup_rxdesc_jumbo(struct bge_softc *, int);
330 static int bge_init_rx_ring_std(struct bge_softc *);
331 static void bge_free_rx_ring_std(struct bge_softc *);
332 static int bge_init_rx_ring_jumbo(struct bge_softc *);
333 static void bge_free_rx_ring_jumbo(struct bge_softc *);
334 static void bge_free_tx_ring(struct bge_softc *);
335 static int bge_init_tx_ring(struct bge_softc *);
337 static int bge_chipinit(struct bge_softc *);
338 static int bge_blockinit(struct bge_softc *);
340 static uint32_t bge_readmem_ind(struct bge_softc *, uint32_t);
341 static void bge_writemem_ind(struct bge_softc *, uint32_t, uint32_t);
343 static uint32_t bge_readreg_ind(struct bge_softc *, uint32_t);
345 static void bge_writereg_ind(struct bge_softc *, uint32_t, uint32_t);
346 static void bge_writemem_direct(struct bge_softc *, uint32_t, uint32_t);
347 static void bge_writembx(struct bge_softc *, int, int);
349 static int bge_miibus_readreg(device_t, int, int);
350 static int bge_miibus_writereg(device_t, int, int, int);
351 static void bge_miibus_statchg(device_t);
352 static void bge_bcm5700_link_upd(struct bge_softc *, uint32_t);
353 static void bge_tbi_link_upd(struct bge_softc *, uint32_t);
354 static void bge_copper_link_upd(struct bge_softc *, uint32_t);
356 static void bge_reset(struct bge_softc *);
358 static int bge_dma_alloc(struct bge_softc *);
359 static void bge_dma_free(struct bge_softc *);
360 static int bge_dma_block_alloc(struct bge_softc *, bus_size_t,
361 bus_dma_tag_t *, bus_dmamap_t *,
362 void **, bus_addr_t *);
363 static void bge_dma_block_free(bus_dma_tag_t, bus_dmamap_t, void *);
365 static int bge_get_eaddr_mem(struct bge_softc *, uint8_t[]);
366 static int bge_get_eaddr_nvram(struct bge_softc *, uint8_t[]);
367 static int bge_get_eaddr_eeprom(struct bge_softc *, uint8_t[]);
368 static int bge_get_eaddr(struct bge_softc *, uint8_t[]);
370 static void bge_coal_change(struct bge_softc *);
371 static int bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS);
372 static int bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS);
373 static int bge_sysctl_rx_max_coal_bds(SYSCTL_HANDLER_ARGS);
374 static int bge_sysctl_tx_max_coal_bds(SYSCTL_HANDLER_ARGS);
375 static int bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *, uint32_t);
378 * Set following tunable to 1 for some IBM blade servers with the DNLK
379 * switch module. Auto negotiation is broken for those configurations.
381 static int bge_fake_autoneg = 0;
382 TUNABLE_INT("hw.bge.fake_autoneg", &bge_fake_autoneg);
384 /* Interrupt moderation control variables. */
385 static int bge_rx_coal_ticks = 100; /* usec */
386 static int bge_tx_coal_ticks = 1023; /* usec */
387 static int bge_rx_max_coal_bds = 80;
388 static int bge_tx_max_coal_bds = 128;
390 TUNABLE_INT("hw.bge.rx_coal_ticks", &bge_rx_coal_ticks);
391 TUNABLE_INT("hw.bge.tx_coal_ticks", &bge_tx_coal_ticks);
392 TUNABLE_INT("hw.bge.rx_max_coal_bds", &bge_rx_max_coal_bds);
393 TUNABLE_INT("hw.bge.tx_max_coal_bds", &bge_tx_max_coal_bds);
395 #if !defined(KTR_IF_BGE)
396 #define KTR_IF_BGE KTR_ALL
398 KTR_INFO_MASTER(if_bge);
399 KTR_INFO(KTR_IF_BGE, if_bge, intr, 0, "intr");
400 KTR_INFO(KTR_IF_BGE, if_bge, rx_pkt, 1, "rx_pkt");
401 KTR_INFO(KTR_IF_BGE, if_bge, tx_pkt, 2, "tx_pkt");
402 #define logif(name) KTR_LOG(if_bge_ ## name)
404 static device_method_t bge_methods[] = {
405 /* Device interface */
406 DEVMETHOD(device_probe, bge_probe),
407 DEVMETHOD(device_attach, bge_attach),
408 DEVMETHOD(device_detach, bge_detach),
409 DEVMETHOD(device_shutdown, bge_shutdown),
410 DEVMETHOD(device_suspend, bge_suspend),
411 DEVMETHOD(device_resume, bge_resume),
414 DEVMETHOD(bus_print_child, bus_generic_print_child),
415 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
418 DEVMETHOD(miibus_readreg, bge_miibus_readreg),
419 DEVMETHOD(miibus_writereg, bge_miibus_writereg),
420 DEVMETHOD(miibus_statchg, bge_miibus_statchg),
425 static DEFINE_CLASS_0(bge, bge_driver, bge_methods, sizeof(struct bge_softc));
426 static devclass_t bge_devclass;
428 DECLARE_DUMMY_MODULE(if_bge);
429 DRIVER_MODULE(if_bge, pci, bge_driver, bge_devclass, NULL, NULL);
430 DRIVER_MODULE(miibus, bge, miibus_driver, miibus_devclass, NULL, NULL);
433 bge_readmem_ind(struct bge_softc *sc, uint32_t off)
435 device_t dev = sc->bge_dev;
438 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
439 val = pci_read_config(dev, BGE_PCI_MEMWIN_DATA, 4);
440 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
445 bge_writemem_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
447 device_t dev = sc->bge_dev;
449 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, off, 4);
450 pci_write_config(dev, BGE_PCI_MEMWIN_DATA, val, 4);
451 pci_write_config(dev, BGE_PCI_MEMWIN_BASEADDR, 0, 4);
456 bge_readreg_ind(struct bge_softc *sc, uin32_t off)
458 device_t dev = sc->bge_dev;
460 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
461 return(pci_read_config(dev, BGE_PCI_REG_DATA, 4));
466 bge_writereg_ind(struct bge_softc *sc, uint32_t off, uint32_t val)
468 device_t dev = sc->bge_dev;
470 pci_write_config(dev, BGE_PCI_REG_BASEADDR, off, 4);
471 pci_write_config(dev, BGE_PCI_REG_DATA, val, 4);
475 bge_writemem_direct(struct bge_softc *sc, uint32_t off, uint32_t val)
477 CSR_WRITE_4(sc, off, val);
481 bge_writembx(struct bge_softc *sc, int off, int val)
483 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
484 off += BGE_LPMBX_IRQ0_HI - BGE_MBX_IRQ0_HI;
486 CSR_WRITE_4(sc, off, val);
490 bge_nvram_getbyte(struct bge_softc *sc, int addr, uint8_t *dest)
492 uint32_t access, byte = 0;
496 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_SET1);
497 for (i = 0; i < 8000; i++) {
498 if (CSR_READ_4(sc, BGE_NVRAM_SWARB) & BGE_NVRAMSWARB_GNT1)
506 access = CSR_READ_4(sc, BGE_NVRAM_ACCESS);
507 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access | BGE_NVRAMACC_ENABLE);
509 CSR_WRITE_4(sc, BGE_NVRAM_ADDR, addr & 0xfffffffc);
510 CSR_WRITE_4(sc, BGE_NVRAM_CMD, BGE_NVRAM_READCMD);
511 for (i = 0; i < BGE_TIMEOUT * 10; i++) {
513 if (CSR_READ_4(sc, BGE_NVRAM_CMD) & BGE_NVRAMCMD_DONE) {
519 if (i == BGE_TIMEOUT * 10) {
520 if_printf(&sc->arpcom.ac_if, "nvram read timed out\n");
525 byte = CSR_READ_4(sc, BGE_NVRAM_RDDATA);
527 *dest = (bswap32(byte) >> ((addr % 4) * 8)) & 0xFF;
529 /* Disable access. */
530 CSR_WRITE_4(sc, BGE_NVRAM_ACCESS, access);
533 CSR_WRITE_4(sc, BGE_NVRAM_SWARB, BGE_NVRAMSWARB_CLR1);
534 CSR_READ_4(sc, BGE_NVRAM_SWARB);
540 * Read a sequence of bytes from NVRAM.
543 bge_read_nvram(struct bge_softc *sc, caddr_t dest, int off, int cnt)
548 if (sc->bge_asicrev != BGE_ASICREV_BCM5906)
551 for (i = 0; i < cnt; i++) {
552 err = bge_nvram_getbyte(sc, off + i, &byte);
558 return (err ? 1 : 0);
562 * Read a byte of data stored in the EEPROM at address 'addr.' The
563 * BCM570x supports both the traditional bitbang interface and an
564 * auto access interface for reading the EEPROM. We use the auto
568 bge_eeprom_getbyte(struct bge_softc *sc, uint32_t addr, uint8_t *dest)
574 * Enable use of auto EEPROM access so we can avoid
575 * having to use the bitbang method.
577 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
579 /* Reset the EEPROM, load the clock period. */
580 CSR_WRITE_4(sc, BGE_EE_ADDR,
581 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
584 /* Issue the read EEPROM command. */
585 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr);
587 /* Wait for completion */
588 for(i = 0; i < BGE_TIMEOUT * 10; i++) {
590 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE)
594 if (i == BGE_TIMEOUT) {
595 if_printf(&sc->arpcom.ac_if, "eeprom read timed out\n");
600 byte = CSR_READ_4(sc, BGE_EE_DATA);
602 *dest = (byte >> ((addr % 4) * 8)) & 0xFF;
608 * Read a sequence of bytes from the EEPROM.
611 bge_read_eeprom(struct bge_softc *sc, caddr_t dest, uint32_t off, size_t len)
617 for (byte = 0, err = 0, i = 0; i < len; i++) {
618 err = bge_eeprom_getbyte(sc, off + i, &byte);
628 bge_miibus_readreg(device_t dev, int phy, int reg)
630 struct bge_softc *sc = device_get_softc(dev);
631 struct ifnet *ifp = &sc->arpcom.ac_if;
632 uint32_t val, autopoll;
636 * Broadcom's own driver always assumes the internal
637 * PHY is at GMII address 1. On some chips, the PHY responds
638 * to accesses at all addresses, which could cause us to
639 * bogusly attach the PHY 32 times at probe type. Always
640 * restricting the lookup to address 1 is simpler than
641 * trying to figure out which chips revisions should be
647 /* Reading with autopolling on may trigger PCI errors */
648 autopoll = CSR_READ_4(sc, BGE_MI_MODE);
649 if (autopoll & BGE_MIMODE_AUTOPOLL) {
650 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
654 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY|
655 BGE_MIPHY(phy)|BGE_MIREG(reg));
657 for (i = 0; i < BGE_TIMEOUT; i++) {
659 val = CSR_READ_4(sc, BGE_MI_COMM);
660 if (!(val & BGE_MICOMM_BUSY))
664 if (i == BGE_TIMEOUT) {
665 if_printf(ifp, "PHY read timed out "
666 "(phy %d, reg %d, val 0x%08x)\n", phy, reg, val);
672 val = CSR_READ_4(sc, BGE_MI_COMM);
675 if (autopoll & BGE_MIMODE_AUTOPOLL) {
676 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
680 if (val & BGE_MICOMM_READFAIL)
683 return(val & 0xFFFF);
687 bge_miibus_writereg(device_t dev, int phy, int reg, int val)
689 struct bge_softc *sc = device_get_softc(dev);
694 * See the related comment in bge_miibus_readreg()
699 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
700 (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL))
703 /* Reading with autopolling on may trigger PCI errors */
704 autopoll = CSR_READ_4(sc, BGE_MI_MODE);
705 if (autopoll & BGE_MIMODE_AUTOPOLL) {
706 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
710 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY|
711 BGE_MIPHY(phy)|BGE_MIREG(reg)|val);
713 for (i = 0; i < BGE_TIMEOUT; i++) {
715 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) {
717 CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */
722 if (autopoll & BGE_MIMODE_AUTOPOLL) {
723 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
727 if (i == BGE_TIMEOUT) {
728 if_printf(&sc->arpcom.ac_if, "PHY write timed out "
729 "(phy %d, reg %d, val %d)\n", phy, reg, val);
737 bge_miibus_statchg(device_t dev)
739 struct bge_softc *sc;
740 struct mii_data *mii;
742 sc = device_get_softc(dev);
743 mii = device_get_softc(sc->bge_miibus);
745 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
746 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) {
747 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
749 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
752 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
753 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
755 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
760 * Memory management for jumbo frames.
763 bge_alloc_jumbo_mem(struct bge_softc *sc)
765 struct ifnet *ifp = &sc->arpcom.ac_if;
766 struct bge_jslot *entry;
772 * Create tag for jumbo mbufs.
773 * This is really a bit of a kludge. We allocate a special
774 * jumbo buffer pool which (thanks to the way our DMA
775 * memory allocation works) will consist of contiguous
776 * pages. This means that even though a jumbo buffer might
777 * be larger than a page size, we don't really need to
778 * map it into more than one DMA segment. However, the
779 * default mbuf tag will result in multi-segment mappings,
780 * so we have to create a special jumbo mbuf tag that
781 * lets us get away with mapping the jumbo buffers as
782 * a single segment. I think eventually the driver should
783 * be changed so that it uses ordinary mbufs and cluster
784 * buffers, i.e. jumbo frames can span multiple DMA
785 * descriptors. But that's a project for another day.
789 * Create DMA stuffs for jumbo RX ring.
791 error = bge_dma_block_alloc(sc, BGE_JUMBO_RX_RING_SZ,
792 &sc->bge_cdata.bge_rx_jumbo_ring_tag,
793 &sc->bge_cdata.bge_rx_jumbo_ring_map,
794 (void *)&sc->bge_ldata.bge_rx_jumbo_ring,
795 &sc->bge_ldata.bge_rx_jumbo_ring_paddr);
797 if_printf(ifp, "could not create jumbo RX ring\n");
802 * Create DMA stuffs for jumbo buffer block.
804 error = bge_dma_block_alloc(sc, BGE_JMEM,
805 &sc->bge_cdata.bge_jumbo_tag,
806 &sc->bge_cdata.bge_jumbo_map,
807 (void **)&sc->bge_ldata.bge_jumbo_buf,
810 if_printf(ifp, "could not create jumbo buffer\n");
814 SLIST_INIT(&sc->bge_jfree_listhead);
817 * Now divide it up into 9K pieces and save the addresses
818 * in an array. Note that we play an evil trick here by using
819 * the first few bytes in the buffer to hold the the address
820 * of the softc structure for this interface. This is because
821 * bge_jfree() needs it, but it is called by the mbuf management
822 * code which will not pass it to us explicitly.
824 for (i = 0, ptr = sc->bge_ldata.bge_jumbo_buf; i < BGE_JSLOTS; i++) {
825 entry = &sc->bge_cdata.bge_jslots[i];
827 entry->bge_buf = ptr;
828 entry->bge_paddr = paddr;
829 entry->bge_inuse = 0;
831 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jslot_link);
840 bge_free_jumbo_mem(struct bge_softc *sc)
842 /* Destroy jumbo RX ring. */
843 bge_dma_block_free(sc->bge_cdata.bge_rx_jumbo_ring_tag,
844 sc->bge_cdata.bge_rx_jumbo_ring_map,
845 sc->bge_ldata.bge_rx_jumbo_ring);
847 /* Destroy jumbo buffer block. */
848 bge_dma_block_free(sc->bge_cdata.bge_jumbo_tag,
849 sc->bge_cdata.bge_jumbo_map,
850 sc->bge_ldata.bge_jumbo_buf);
854 * Allocate a jumbo buffer.
856 static struct bge_jslot *
857 bge_jalloc(struct bge_softc *sc)
859 struct bge_jslot *entry;
861 lwkt_serialize_enter(&sc->bge_jslot_serializer);
862 entry = SLIST_FIRST(&sc->bge_jfree_listhead);
864 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jslot_link);
865 entry->bge_inuse = 1;
867 if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n");
869 lwkt_serialize_exit(&sc->bge_jslot_serializer);
874 * Adjust usage count on a jumbo buffer.
879 struct bge_jslot *entry = (struct bge_jslot *)arg;
880 struct bge_softc *sc = entry->bge_sc;
883 panic("bge_jref: can't find softc pointer!");
885 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
886 panic("bge_jref: asked to reference buffer "
887 "that we don't manage!");
888 } else if (entry->bge_inuse == 0) {
889 panic("bge_jref: buffer already free!");
891 atomic_add_int(&entry->bge_inuse, 1);
896 * Release a jumbo buffer.
901 struct bge_jslot *entry = (struct bge_jslot *)arg;
902 struct bge_softc *sc = entry->bge_sc;
905 panic("bge_jfree: can't find softc pointer!");
907 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
908 panic("bge_jfree: asked to free buffer that we don't manage!");
909 } else if (entry->bge_inuse == 0) {
910 panic("bge_jfree: buffer already free!");
913 * Possible MP race to 0, use the serializer. The atomic insn
914 * is still needed for races against bge_jref().
916 lwkt_serialize_enter(&sc->bge_jslot_serializer);
917 atomic_subtract_int(&entry->bge_inuse, 1);
918 if (entry->bge_inuse == 0) {
919 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead,
922 lwkt_serialize_exit(&sc->bge_jslot_serializer);
928 * Intialize a standard receive ring descriptor.
931 bge_newbuf_std(struct bge_softc *sc, int i, int init)
933 struct mbuf *m_new = NULL;
934 bus_dma_segment_t seg;
938 m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
941 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
943 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0)
944 m_adj(m_new, ETHER_ALIGN);
946 error = bus_dmamap_load_mbuf_segment(sc->bge_cdata.bge_rx_mtag,
947 sc->bge_cdata.bge_rx_tmpmap, m_new,
948 &seg, 1, &nsegs, BUS_DMA_NOWAIT);
955 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag,
956 sc->bge_cdata.bge_rx_std_dmamap[i],
957 BUS_DMASYNC_POSTREAD);
958 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
959 sc->bge_cdata.bge_rx_std_dmamap[i]);
962 map = sc->bge_cdata.bge_rx_tmpmap;
963 sc->bge_cdata.bge_rx_tmpmap = sc->bge_cdata.bge_rx_std_dmamap[i];
964 sc->bge_cdata.bge_rx_std_dmamap[i] = map;
966 sc->bge_cdata.bge_rx_std_chain[i].bge_mbuf = m_new;
967 sc->bge_cdata.bge_rx_std_chain[i].bge_paddr = seg.ds_addr;
969 bge_setup_rxdesc_std(sc, i);
974 bge_setup_rxdesc_std(struct bge_softc *sc, int i)
976 struct bge_rxchain *rc;
979 rc = &sc->bge_cdata.bge_rx_std_chain[i];
980 r = &sc->bge_ldata.bge_rx_std_ring[i];
982 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
983 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
984 r->bge_len = rc->bge_mbuf->m_len;
986 r->bge_flags = BGE_RXBDFLAG_END;
990 * Initialize a jumbo receive ring descriptor. This allocates
991 * a jumbo buffer from the pool managed internally by the driver.
994 bge_newbuf_jumbo(struct bge_softc *sc, int i, int init)
996 struct mbuf *m_new = NULL;
997 struct bge_jslot *buf;
1000 /* Allocate the mbuf. */
1001 MGETHDR(m_new, init ? MB_WAIT : MB_DONTWAIT, MT_DATA);
1005 /* Allocate the jumbo buffer */
1006 buf = bge_jalloc(sc);
1012 /* Attach the buffer to the mbuf. */
1013 m_new->m_ext.ext_arg = buf;
1014 m_new->m_ext.ext_buf = buf->bge_buf;
1015 m_new->m_ext.ext_free = bge_jfree;
1016 m_new->m_ext.ext_ref = bge_jref;
1017 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN;
1019 m_new->m_flags |= M_EXT;
1021 m_new->m_data = m_new->m_ext.ext_buf;
1022 m_new->m_len = m_new->m_pkthdr.len = m_new->m_ext.ext_size;
1024 paddr = buf->bge_paddr;
1025 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) {
1026 m_adj(m_new, ETHER_ALIGN);
1027 paddr += ETHER_ALIGN;
1030 /* Save necessary information */
1031 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_mbuf = m_new;
1032 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_paddr = paddr;
1034 /* Set up the descriptor. */
1035 bge_setup_rxdesc_jumbo(sc, i);
1040 bge_setup_rxdesc_jumbo(struct bge_softc *sc, int i)
1042 struct bge_rx_bd *r;
1043 struct bge_rxchain *rc;
1045 r = &sc->bge_ldata.bge_rx_jumbo_ring[i];
1046 rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1048 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1049 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1050 r->bge_len = rc->bge_mbuf->m_len;
1052 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
1056 bge_init_rx_ring_std(struct bge_softc *sc)
1060 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1061 error = bge_newbuf_std(sc, i, 1);
1066 sc->bge_std = BGE_STD_RX_RING_CNT - 1;
1067 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
1073 bge_free_rx_ring_std(struct bge_softc *sc)
1077 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1078 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_std_chain[i];
1080 if (rc->bge_mbuf != NULL) {
1081 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
1082 sc->bge_cdata.bge_rx_std_dmamap[i]);
1083 m_freem(rc->bge_mbuf);
1084 rc->bge_mbuf = NULL;
1086 bzero(&sc->bge_ldata.bge_rx_std_ring[i],
1087 sizeof(struct bge_rx_bd));
1092 bge_init_rx_ring_jumbo(struct bge_softc *sc)
1094 struct bge_rcb *rcb;
1097 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1098 error = bge_newbuf_jumbo(sc, i, 1);
1103 sc->bge_jumbo = BGE_JUMBO_RX_RING_CNT - 1;
1105 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1106 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
1107 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1109 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
1115 bge_free_rx_ring_jumbo(struct bge_softc *sc)
1119 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1120 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1122 if (rc->bge_mbuf != NULL) {
1123 m_freem(rc->bge_mbuf);
1124 rc->bge_mbuf = NULL;
1126 bzero(&sc->bge_ldata.bge_rx_jumbo_ring[i],
1127 sizeof(struct bge_rx_bd));
1132 bge_free_tx_ring(struct bge_softc *sc)
1136 for (i = 0; i < BGE_TX_RING_CNT; i++) {
1137 if (sc->bge_cdata.bge_tx_chain[i] != NULL) {
1138 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
1139 sc->bge_cdata.bge_tx_dmamap[i]);
1140 m_freem(sc->bge_cdata.bge_tx_chain[i]);
1141 sc->bge_cdata.bge_tx_chain[i] = NULL;
1143 bzero(&sc->bge_ldata.bge_tx_ring[i],
1144 sizeof(struct bge_tx_bd));
1149 bge_init_tx_ring(struct bge_softc *sc)
1152 sc->bge_tx_saved_considx = 0;
1153 sc->bge_tx_prodidx = 0;
1155 /* Initialize transmit producer index for host-memory send ring. */
1156 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1158 /* 5700 b2 errata */
1159 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1160 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1162 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1163 /* 5700 b2 errata */
1164 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1165 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1171 bge_setmulti(struct bge_softc *sc)
1174 struct ifmultiaddr *ifma;
1175 uint32_t hashes[4] = { 0, 0, 0, 0 };
1178 ifp = &sc->arpcom.ac_if;
1180 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1181 for (i = 0; i < 4; i++)
1182 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF);
1186 /* First, zot all the existing filters. */
1187 for (i = 0; i < 4; i++)
1188 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0);
1190 /* Now program new ones. */
1191 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1192 if (ifma->ifma_addr->sa_family != AF_LINK)
1195 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1196 ETHER_ADDR_LEN) & 0x7f;
1197 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
1200 for (i = 0; i < 4; i++)
1201 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]);
1205 * Do endian, PCI and DMA initialization. Also check the on-board ROM
1206 * self-test results.
1209 bge_chipinit(struct bge_softc *sc)
1212 uint32_t dma_rw_ctl;
1215 /* Set endian type before we access any non-PCI registers. */
1216 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_INIT, 4);
1218 /* Clear the MAC control register */
1219 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
1222 * Clear the MAC statistics block in the NIC's
1225 for (i = BGE_STATS_BLOCK;
1226 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t))
1227 BGE_MEMWIN_WRITE(sc, i, 0);
1229 for (i = BGE_STATUS_BLOCK;
1230 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t))
1231 BGE_MEMWIN_WRITE(sc, i, 0);
1233 if (sc->bge_chiprev == BGE_CHIPREV_5704_BX) {
1235 * Fix data corruption caused by non-qword write with WB.
1236 * Fix master abort in PCI mode.
1237 * Fix PCI latency timer.
1239 val = pci_read_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, 2);
1240 val |= (1 << 10) | (1 << 12) | (1 << 13);
1241 pci_write_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, val, 2);
1244 /* Set up the PCI DMA control register. */
1245 if (sc->bge_flags & BGE_FLAG_PCIE) {
1247 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1248 (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1249 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1250 } else if (sc->bge_flags & BGE_FLAG_PCIX) {
1252 if (BGE_IS_5714_FAMILY(sc)) {
1253 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD;
1254 dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */
1255 /* XXX magic values, Broadcom-supplied Linux driver */
1256 if (sc->bge_asicrev == BGE_ASICREV_BCM5780) {
1257 dma_rw_ctl |= (1 << 20) | (1 << 18) |
1258 BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1260 dma_rw_ctl |= (1 << 20) | (1 << 18) | (1 << 15);
1262 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
1264 * In the BCM5703, the DMA read watermark should
1265 * be set to less than or equal to the maximum
1266 * memory read byte count of the PCI-X command
1269 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1270 (0x4 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1271 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1272 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1274 * The 5704 uses a different encoding of read/write
1277 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1278 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1279 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1281 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1282 (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1283 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1288 * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround
1289 * for hardware bugs.
1291 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1292 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1295 tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f;
1296 if (tmp == 0x6 || tmp == 0x7)
1297 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1300 /* Conventional PCI bus */
1301 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1302 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1303 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1307 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1308 sc->bge_asicrev == BGE_ASICREV_BCM5704 ||
1309 sc->bge_asicrev == BGE_ASICREV_BCM5705)
1310 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA;
1311 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4);
1314 * Set up general mode register.
1316 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
1317 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS|
1318 BGE_MODECTL_TX_NO_PHDR_CSUM);
1321 * BCM5701 B5 have a bug causing data corruption when using
1322 * 64-bit DMA reads, which can be terminated early and then
1323 * completed later as 32-bit accesses, in combination with
1326 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
1327 sc->bge_chipid == BGE_CHIPID_BCM5701_B5)
1328 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_FORCE_PCI32);
1331 * Disable memory write invalidate. Apparently it is not supported
1332 * properly by these devices.
1334 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4);
1336 /* Set the timer prescaler (always 66Mhz) */
1337 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
1339 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1340 DELAY(40); /* XXX */
1342 /* Put PHY into ready state */
1343 BGE_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
1344 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */
1352 bge_blockinit(struct bge_softc *sc)
1354 struct bge_rcb *rcb;
1361 * Initialize the memory window pointer register so that
1362 * we can access the first 32K of internal NIC RAM. This will
1363 * allow us to set up the TX send ring RCBs and the RX return
1364 * ring RCBs, plus other things which live in NIC memory.
1366 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
1368 /* Note: the BCM5704 has a smaller mbuf space than other chips. */
1370 if (!BGE_IS_5705_PLUS(sc)) {
1371 /* Configure mbuf memory pool */
1372 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1);
1373 if (sc->bge_asicrev == BGE_ASICREV_BCM5704)
1374 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000);
1376 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000);
1378 /* Configure DMA resource pool */
1379 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR,
1380 BGE_DMA_DESCRIPTORS);
1381 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000);
1384 /* Configure mbuf pool watermarks */
1385 if (!BGE_IS_5705_PLUS(sc)) {
1386 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50);
1387 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20);
1388 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1389 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1390 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1391 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04);
1392 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10);
1394 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1395 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
1396 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1399 /* Configure DMA resource watermarks */
1400 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
1401 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
1403 /* Enable buffer manager */
1404 if (!BGE_IS_5705_PLUS(sc)) {
1405 CSR_WRITE_4(sc, BGE_BMAN_MODE,
1406 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN);
1408 /* Poll for buffer manager start indication */
1409 for (i = 0; i < BGE_TIMEOUT; i++) {
1410 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
1415 if (i == BGE_TIMEOUT) {
1416 if_printf(&sc->arpcom.ac_if,
1417 "buffer manager failed to start\n");
1422 /* Enable flow-through queues */
1423 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
1424 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
1426 /* Wait until queue initialization is complete */
1427 for (i = 0; i < BGE_TIMEOUT; i++) {
1428 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
1433 if (i == BGE_TIMEOUT) {
1434 if_printf(&sc->arpcom.ac_if,
1435 "flow-through queue init failed\n");
1439 /* Initialize the standard RX ring control block */
1440 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb;
1441 rcb->bge_hostaddr.bge_addr_lo =
1442 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr);
1443 rcb->bge_hostaddr.bge_addr_hi =
1444 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr);
1445 if (BGE_IS_5705_PLUS(sc))
1446 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
1448 rcb->bge_maxlen_flags =
1449 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0);
1450 rcb->bge_nicaddr = BGE_STD_RX_RINGS;
1451 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
1452 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
1453 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1454 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
1457 * Initialize the jumbo RX ring control block
1458 * We set the 'ring disabled' bit in the flags
1459 * field until we're actually ready to start
1460 * using this ring (i.e. once we set the MTU
1461 * high enough to require it).
1463 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1464 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1466 rcb->bge_hostaddr.bge_addr_lo =
1467 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1468 rcb->bge_hostaddr.bge_addr_hi =
1469 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1470 rcb->bge_maxlen_flags =
1471 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN,
1472 BGE_RCB_FLAG_RING_DISABLED);
1473 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
1474 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
1475 rcb->bge_hostaddr.bge_addr_hi);
1476 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
1477 rcb->bge_hostaddr.bge_addr_lo);
1478 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
1479 rcb->bge_maxlen_flags);
1480 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr);
1482 /* Set up dummy disabled mini ring RCB */
1483 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb;
1484 rcb->bge_maxlen_flags =
1485 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED);
1486 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS,
1487 rcb->bge_maxlen_flags);
1491 * Set the BD ring replentish thresholds. The recommended
1492 * values are 1/8th the number of descriptors allocated to
1495 if (BGE_IS_5705_PLUS(sc))
1498 val = BGE_STD_RX_RING_CNT / 8;
1499 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val);
1500 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8);
1503 * Disable all unused send rings by setting the 'ring disabled'
1504 * bit in the flags field of all the TX send ring control blocks.
1505 * These are located in NIC memory.
1507 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1508 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) {
1509 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1510 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1511 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1512 vrcb += sizeof(struct bge_rcb);
1515 /* Configure TX RCB 0 (we use only the first ring) */
1516 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1517 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr);
1518 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1519 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1520 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1521 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1522 if (!BGE_IS_5705_PLUS(sc)) {
1523 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1524 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1527 /* Disable all unused RX return rings */
1528 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1529 for (i = 0; i < BGE_RX_RINGS_MAX; i++) {
1530 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1531 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1532 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1533 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt,
1534 BGE_RCB_FLAG_RING_DISABLED));
1535 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1536 bge_writembx(sc, BGE_MBX_RX_CONS0_LO +
1537 (i * (sizeof(uint64_t))), 0);
1538 vrcb += sizeof(struct bge_rcb);
1541 /* Initialize RX ring indexes */
1542 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1543 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1544 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
1547 * Set up RX return ring 0
1548 * Note that the NIC address for RX return rings is 0x00000000.
1549 * The return rings live entirely within the host, so the
1550 * nicaddr field in the RCB isn't used.
1552 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1553 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr);
1554 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1555 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1556 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0x00000000);
1557 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1558 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
1560 /* Set random backoff seed for TX */
1561 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1562 sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1563 sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1564 sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1565 BGE_TX_BACKOFF_SEED_MASK);
1567 /* Set inter-packet gap */
1568 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
1571 * Specify which ring to use for packets that don't match
1574 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1577 * Configure number of RX lists. One interrupt distribution
1578 * list, sixteen active lists, one bad frames class.
1580 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1582 /* Inialize RX list placement stats mask. */
1583 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1584 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1586 /* Disable host coalescing until we get it set up */
1587 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1589 /* Poll to make sure it's shut down. */
1590 for (i = 0; i < BGE_TIMEOUT; i++) {
1591 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1596 if (i == BGE_TIMEOUT) {
1597 if_printf(&sc->arpcom.ac_if,
1598 "host coalescing engine failed to idle\n");
1602 /* Set up host coalescing defaults */
1603 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
1604 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
1605 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds);
1606 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds);
1607 if (!BGE_IS_5705_PLUS(sc)) {
1608 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0);
1609 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0);
1611 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1);
1612 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1);
1614 /* Set up address of statistics block */
1615 if (!BGE_IS_5705_PLUS(sc)) {
1616 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI,
1617 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr));
1618 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
1619 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr));
1621 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
1622 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
1623 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
1626 /* Set up address of status block */
1627 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1628 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr));
1629 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1630 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr));
1631 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx = 0;
1632 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx = 0;
1634 /* Turn on host coalescing state machine */
1635 CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
1637 /* Turn on RX BD completion state machine and enable attentions */
1638 CSR_WRITE_4(sc, BGE_RBDC_MODE,
1639 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1641 /* Turn on RX list placement state machine */
1642 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1644 /* Turn on RX list selector state machine. */
1645 if (!BGE_IS_5705_PLUS(sc))
1646 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
1648 /* Turn on DMA, clear stats */
1649 CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB|
1650 BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR|
1651 BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB|
1652 BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB|
1653 ((sc->bge_flags & BGE_FLAG_TBI) ?
1654 BGE_PORTMODE_TBI : BGE_PORTMODE_MII));
1656 /* Set misc. local control, enable interrupts on attentions */
1657 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1660 /* Assert GPIO pins for PHY reset */
1661 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1662 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1663 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1664 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1667 /* Turn on DMA completion state machine */
1668 if (!BGE_IS_5705_PLUS(sc))
1669 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
1671 /* Turn on write DMA state machine */
1672 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1673 if (BGE_IS_5755_PLUS(sc)) {
1674 /* Enable host coalescing bug fix. */
1675 val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1677 CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1680 /* Turn on read DMA state machine */
1681 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1682 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1683 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1684 sc->bge_asicrev == BGE_ASICREV_BCM57780)
1685 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1686 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1687 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1688 if (sc->bge_flags & BGE_FLAG_PCIE)
1689 val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1690 CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1693 /* Turn on RX data completion state machine */
1694 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1696 /* Turn on RX BD initiator state machine */
1697 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1699 /* Turn on RX data and RX BD initiator state machine */
1700 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1702 /* Turn on Mbuf cluster free state machine */
1703 if (!BGE_IS_5705_PLUS(sc))
1704 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
1706 /* Turn on send BD completion state machine */
1707 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1709 /* Turn on send data completion state machine */
1710 val = BGE_SDCMODE_ENABLE;
1711 if (sc->bge_asicrev == BGE_ASICREV_BCM5761)
1712 val |= BGE_SDCMODE_CDELAY;
1713 CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1715 /* Turn on send data initiator state machine */
1716 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1718 /* Turn on send BD initiator state machine */
1719 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1721 /* Turn on send BD selector state machine */
1722 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1724 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1725 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1726 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1728 /* ack/clear link change events */
1729 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1730 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1731 BGE_MACSTAT_LINK_CHANGED);
1732 CSR_WRITE_4(sc, BGE_MI_STS, 0);
1734 /* Enable PHY auto polling (for MII/GMII only) */
1735 if (sc->bge_flags & BGE_FLAG_TBI) {
1736 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1738 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16);
1739 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1740 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
1741 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
1742 BGE_EVTENB_MI_INTERRUPT);
1747 * Clear any pending link state attention.
1748 * Otherwise some link state change events may be lost until attention
1749 * is cleared by bge_intr() -> bge_softc.bge_link_upd() sequence.
1750 * It's not necessary on newer BCM chips - perhaps enabling link
1751 * state change attentions implies clearing pending attention.
1753 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1754 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1755 BGE_MACSTAT_LINK_CHANGED);
1757 /* Enable link state change attentions. */
1758 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1764 * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1765 * against our list and return its name if we find a match. Note
1766 * that since the Broadcom controller contains VPD support, we
1767 * can get the device name string from the controller itself instead
1768 * of the compiled-in string. This is a little slow, but it guarantees
1769 * we'll always announce the right product name.
1772 bge_probe(device_t dev)
1774 const struct bge_type *t;
1775 uint16_t product, vendor;
1777 product = pci_get_device(dev);
1778 vendor = pci_get_vendor(dev);
1780 for (t = bge_devs; t->bge_name != NULL; t++) {
1781 if (vendor == t->bge_vid && product == t->bge_did)
1784 if (t->bge_name == NULL)
1787 device_set_desc(dev, t->bge_name);
1788 if (pci_get_subvendor(dev) == PCI_VENDOR_DELL) {
1789 struct bge_softc *sc = device_get_softc(dev);
1790 sc->bge_flags |= BGE_FLAG_NO_3LED;
1796 bge_attach(device_t dev)
1799 struct bge_softc *sc;
1802 uint8_t ether_addr[ETHER_ADDR_LEN];
1804 sc = device_get_softc(dev);
1806 callout_init(&sc->bge_stat_timer);
1807 lwkt_serialize_init(&sc->bge_jslot_serializer);
1809 #ifndef BURN_BRIDGES
1810 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1813 irq = pci_read_config(dev, PCIR_INTLINE, 4);
1814 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
1816 device_printf(dev, "chip is in D%d power mode "
1817 "-- setting to D0\n", pci_get_powerstate(dev));
1819 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1821 pci_write_config(dev, PCIR_INTLINE, irq, 4);
1822 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
1824 #endif /* !BURN_BRIDGE */
1827 * Map control/status registers.
1829 pci_enable_busmaster(dev);
1832 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1835 if (sc->bge_res == NULL) {
1836 device_printf(dev, "couldn't map memory\n");
1840 sc->bge_btag = rman_get_bustag(sc->bge_res);
1841 sc->bge_bhandle = rman_get_bushandle(sc->bge_res);
1843 /* Save various chip information */
1845 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
1846 BGE_PCIMISCCTL_ASICREV_SHIFT;
1847 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG)
1848 sc->bge_chipid = pci_read_config(dev, BGE_PCI_PRODID_ASICREV, 4);
1849 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid);
1850 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid);
1852 /* Save chipset family. */
1853 switch (sc->bge_asicrev) {
1854 case BGE_ASICREV_BCM5755:
1855 case BGE_ASICREV_BCM5761:
1856 case BGE_ASICREV_BCM5784:
1857 case BGE_ASICREV_BCM5785:
1858 case BGE_ASICREV_BCM5787:
1859 case BGE_ASICREV_BCM57780:
1860 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS |
1864 case BGE_ASICREV_BCM5700:
1865 case BGE_ASICREV_BCM5701:
1866 case BGE_ASICREV_BCM5703:
1867 case BGE_ASICREV_BCM5704:
1868 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO;
1871 case BGE_ASICREV_BCM5714_A0:
1872 case BGE_ASICREV_BCM5780:
1873 case BGE_ASICREV_BCM5714:
1874 sc->bge_flags |= BGE_FLAG_5714_FAMILY;
1877 case BGE_ASICREV_BCM5750:
1878 case BGE_ASICREV_BCM5752:
1879 case BGE_ASICREV_BCM5906:
1880 sc->bge_flags |= BGE_FLAG_575X_PLUS;
1883 case BGE_ASICREV_BCM5705:
1884 sc->bge_flags |= BGE_FLAG_5705_PLUS;
1888 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
1889 sc->bge_flags |= BGE_FLAG_NO_EEPROM;
1892 * Set various quirk flags.
1895 sc->bge_flags |= BGE_FLAG_ETH_WIRESPEED;
1896 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
1897 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
1898 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
1899 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
1900 sc->bge_asicrev == BGE_ASICREV_BCM5906)
1901 sc->bge_flags &= ~BGE_FLAG_ETH_WIRESPEED;
1903 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 ||
1904 sc->bge_chipid == BGE_CHIPID_BCM5701_B0)
1905 sc->bge_flags |= BGE_FLAG_CRC_BUG;
1907 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX ||
1908 sc->bge_chiprev == BGE_CHIPREV_5704_AX)
1909 sc->bge_flags |= BGE_FLAG_ADC_BUG;
1911 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
1912 sc->bge_flags |= BGE_FLAG_5704_A0_BUG;
1914 if (BGE_IS_5705_PLUS(sc)) {
1915 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 ||
1916 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1917 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1918 sc->bge_asicrev == BGE_ASICREV_BCM5787) {
1919 uint32_t product = pci_get_device(dev);
1921 if (product != PCI_PRODUCT_BROADCOM_BCM5722 &&
1922 product != PCI_PRODUCT_BROADCOM_BCM5756)
1923 sc->bge_flags |= BGE_FLAG_JITTER_BUG;
1924 if (product == PCI_PRODUCT_BROADCOM_BCM5755M)
1925 sc->bge_flags |= BGE_FLAG_ADJUST_TRIM;
1926 } else if (sc->bge_asicrev != BGE_ASICREV_BCM5906) {
1927 sc->bge_flags |= BGE_FLAG_BER_BUG;
1931 /* Allocate interrupt */
1934 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1935 RF_SHAREABLE | RF_ACTIVE);
1937 if (sc->bge_irq == NULL) {
1938 device_printf(dev, "couldn't map interrupt\n");
1944 * Check if this is a PCI-X or PCI Express device.
1946 if (BGE_IS_5705_PLUS(sc)) {
1947 if (pci_is_pcie(dev)) {
1948 sc->bge_flags |= BGE_FLAG_PCIE;
1949 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
1953 * Check if the device is in PCI-X Mode.
1954 * (This bit is not valid on PCI Express controllers.)
1956 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) &
1957 BGE_PCISTATE_PCI_BUSMODE) == 0) {
1958 sc->bge_flags |= BGE_FLAG_PCIX;
1959 sc->bge_pcixcap = pci_get_pcixcap_ptr(sc->bge_dev);
1963 device_printf(dev, "CHIP ID 0x%08x; "
1964 "ASIC REV 0x%02x; CHIP REV 0x%02x; %s\n",
1965 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev,
1966 (sc->bge_flags & BGE_FLAG_PCIX) ? "PCI-X"
1967 : ((sc->bge_flags & BGE_FLAG_PCIE) ?
1971 * All controllers that are not 5755 or higher have 4GB
1973 * Whenever an address crosses a multiple of the 4GB boundary
1974 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
1975 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
1976 * state machine will lockup and cause the device to hang.
1978 if (BGE_IS_5755_PLUS(sc) == 0)
1979 sc->bge_flags |= BGE_FLAG_BOUNDARY_4G;
1982 * The 40bit DMA bug applies to the 5714/5715 controllers and is
1983 * not actually a MAC controller bug but an issue with the embedded
1984 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround.
1986 if (BGE_IS_5714_FAMILY(sc) && (sc->bge_flags & BGE_FLAG_PCIX))
1987 sc->bge_flags |= BGE_FLAG_MAXADDR_40BIT;
1989 ifp = &sc->arpcom.ac_if;
1990 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
1992 /* Try to reset the chip. */
1995 if (bge_chipinit(sc)) {
1996 device_printf(dev, "chip initialization failed\n");
2002 * Get station address
2004 error = bge_get_eaddr(sc, ether_addr);
2006 device_printf(dev, "failed to read station address\n");
2010 /* 5705/5750 limits RX return ring to 512 entries. */
2011 if (BGE_IS_5705_PLUS(sc))
2012 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
2014 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
2016 error = bge_dma_alloc(sc);
2020 /* Set default tuneable values. */
2021 sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
2022 sc->bge_rx_coal_ticks = bge_rx_coal_ticks;
2023 sc->bge_tx_coal_ticks = bge_tx_coal_ticks;
2024 sc->bge_rx_max_coal_bds = bge_rx_max_coal_bds;
2025 sc->bge_tx_max_coal_bds = bge_tx_max_coal_bds;
2027 /* Set up ifnet structure */
2029 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2030 ifp->if_ioctl = bge_ioctl;
2031 ifp->if_start = bge_start;
2032 #ifdef DEVICE_POLLING
2033 ifp->if_poll = bge_poll;
2035 ifp->if_watchdog = bge_watchdog;
2036 ifp->if_init = bge_init;
2037 ifp->if_mtu = ETHERMTU;
2038 ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2039 ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
2040 ifq_set_ready(&ifp->if_snd);
2043 * 5700 B0 chips do not support checksumming correctly due
2046 if (sc->bge_chipid != BGE_CHIPID_BCM5700_B0) {
2047 ifp->if_capabilities |= IFCAP_HWCSUM;
2048 ifp->if_hwassist = BGE_CSUM_FEATURES;
2050 ifp->if_capenable = ifp->if_capabilities;
2053 * Figure out what sort of media we have by checking the
2054 * hardware config word in the first 32k of NIC internal memory,
2055 * or fall back to examining the EEPROM if necessary.
2056 * Note: on some BCM5700 cards, this value appears to be unset.
2057 * If that's the case, we have to rely on identifying the NIC
2058 * by its PCI subsystem ID, as we do below for the SysKonnect
2061 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER)
2062 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
2064 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
2066 device_printf(dev, "failed to read EEPROM\n");
2070 hwcfg = ntohl(hwcfg);
2073 if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER)
2074 sc->bge_flags |= BGE_FLAG_TBI;
2076 /* The SysKonnect SK-9D41 is a 1000baseSX card. */
2077 if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41)
2078 sc->bge_flags |= BGE_FLAG_TBI;
2080 if (sc->bge_flags & BGE_FLAG_TBI) {
2081 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK,
2082 bge_ifmedia_upd, bge_ifmedia_sts);
2083 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2084 ifmedia_add(&sc->bge_ifmedia,
2085 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2086 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2087 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
2088 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
2091 * Do transceiver setup.
2093 if (mii_phy_probe(dev, &sc->bge_miibus,
2094 bge_ifmedia_upd, bge_ifmedia_sts)) {
2095 device_printf(dev, "MII without any PHY!\n");
2102 * When using the BCM5701 in PCI-X mode, data corruption has
2103 * been observed in the first few bytes of some received packets.
2104 * Aligning the packet buffer in memory eliminates the corruption.
2105 * Unfortunately, this misaligns the packet payloads. On platforms
2106 * which do not support unaligned accesses, we will realign the
2107 * payloads by copying the received packets.
2109 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
2110 (sc->bge_flags & BGE_FLAG_PCIX))
2111 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG;
2113 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
2114 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
2115 sc->bge_link_upd = bge_bcm5700_link_upd;
2116 sc->bge_link_chg = BGE_MACSTAT_MI_INTERRUPT;
2117 } else if (sc->bge_flags & BGE_FLAG_TBI) {
2118 sc->bge_link_upd = bge_tbi_link_upd;
2119 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2121 sc->bge_link_upd = bge_copper_link_upd;
2122 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2126 * Create sysctl nodes.
2128 sysctl_ctx_init(&sc->bge_sysctl_ctx);
2129 sc->bge_sysctl_tree = SYSCTL_ADD_NODE(&sc->bge_sysctl_ctx,
2130 SYSCTL_STATIC_CHILDREN(_hw),
2132 device_get_nameunit(dev),
2134 if (sc->bge_sysctl_tree == NULL) {
2135 device_printf(dev, "can't add sysctl node\n");
2140 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2141 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2142 OID_AUTO, "rx_coal_ticks",
2143 CTLTYPE_INT | CTLFLAG_RW,
2144 sc, 0, bge_sysctl_rx_coal_ticks, "I",
2145 "Receive coalescing ticks (usec).");
2146 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2147 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2148 OID_AUTO, "tx_coal_ticks",
2149 CTLTYPE_INT | CTLFLAG_RW,
2150 sc, 0, bge_sysctl_tx_coal_ticks, "I",
2151 "Transmit coalescing ticks (usec).");
2152 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2153 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2154 OID_AUTO, "rx_max_coal_bds",
2155 CTLTYPE_INT | CTLFLAG_RW,
2156 sc, 0, bge_sysctl_rx_max_coal_bds, "I",
2157 "Receive max coalesced BD count.");
2158 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2159 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2160 OID_AUTO, "tx_max_coal_bds",
2161 CTLTYPE_INT | CTLFLAG_RW,
2162 sc, 0, bge_sysctl_tx_max_coal_bds, "I",
2163 "Transmit max coalesced BD count.");
2166 * Call MI attach routine.
2168 ether_ifattach(ifp, ether_addr, NULL);
2170 error = bus_setup_intr(dev, sc->bge_irq, INTR_MPSAFE,
2171 bge_intr, sc, &sc->bge_intrhand,
2172 ifp->if_serializer);
2174 ether_ifdetach(ifp);
2175 device_printf(dev, "couldn't set up irq\n");
2179 ifp->if_cpuid = rman_get_cpuid(sc->bge_irq);
2180 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
2189 bge_detach(device_t dev)
2191 struct bge_softc *sc = device_get_softc(dev);
2193 if (device_is_attached(dev)) {
2194 struct ifnet *ifp = &sc->arpcom.ac_if;
2196 lwkt_serialize_enter(ifp->if_serializer);
2199 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand);
2200 lwkt_serialize_exit(ifp->if_serializer);
2202 ether_ifdetach(ifp);
2205 if (sc->bge_flags & BGE_FLAG_TBI)
2206 ifmedia_removeall(&sc->bge_ifmedia);
2208 device_delete_child(dev, sc->bge_miibus);
2209 bus_generic_detach(dev);
2211 if (sc->bge_irq != NULL)
2212 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq);
2214 if (sc->bge_res != NULL)
2215 bus_release_resource(dev, SYS_RES_MEMORY,
2216 BGE_PCI_BAR0, sc->bge_res);
2218 if (sc->bge_sysctl_tree != NULL)
2219 sysctl_ctx_free(&sc->bge_sysctl_ctx);
2227 bge_reset(struct bge_softc *sc)
2230 uint32_t cachesize, command, pcistate, reset;
2231 void (*write_op)(struct bge_softc *, uint32_t, uint32_t);
2236 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) &&
2237 sc->bge_asicrev != BGE_ASICREV_BCM5906) {
2238 if (sc->bge_flags & BGE_FLAG_PCIE)
2239 write_op = bge_writemem_direct;
2241 write_op = bge_writemem_ind;
2243 write_op = bge_writereg_ind;
2246 /* Save some important PCI state. */
2247 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2248 command = pci_read_config(dev, BGE_PCI_CMD, 4);
2249 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2251 pci_write_config(dev, BGE_PCI_MISC_CTL,
2252 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2253 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2255 /* Disable fastboot on controllers that support it. */
2256 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 ||
2257 BGE_IS_5755_PLUS(sc)) {
2259 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2260 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2264 * Write the magic number to SRAM at offset 0xB50.
2265 * When firmware finishes its initialization it will
2266 * write ~BGE_MAGIC_NUMBER to the same location.
2268 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2270 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2272 /* XXX: Broadcom Linux driver. */
2273 if (sc->bge_flags & BGE_FLAG_PCIE) {
2274 if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */
2275 CSR_WRITE_4(sc, 0x7e2c, 0x20);
2276 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2277 /* Prevent PCIE link training during global reset */
2278 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2284 * Set GPHY Power Down Override to leave GPHY
2285 * powered up in D0 uninitialized.
2287 if (BGE_IS_5705_PLUS(sc))
2288 reset |= 0x04000000;
2290 /* Issue global reset */
2291 write_op(sc, BGE_MISC_CFG, reset);
2293 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2294 uint32_t status, ctrl;
2296 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2297 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2298 status | BGE_VCPU_STATUS_DRV_RESET);
2299 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2300 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2301 ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2306 /* XXX: Broadcom Linux driver. */
2307 if (sc->bge_flags & BGE_FLAG_PCIE) {
2308 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
2311 DELAY(500000); /* wait for link training to complete */
2312 v = pci_read_config(dev, 0xc4, 4);
2313 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2316 * Set PCIE max payload size to 128 bytes and
2317 * clear error status.
2319 pci_write_config(dev, 0xd8, 0xf5000, 4);
2322 /* Reset some of the PCI state that got zapped by reset */
2323 pci_write_config(dev, BGE_PCI_MISC_CTL,
2324 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2325 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2326 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2327 pci_write_config(dev, BGE_PCI_CMD, command, 4);
2328 write_op(sc, BGE_MISC_CFG, (65 << 1));
2331 * Disable PCI-X relaxed ordering to ensure status block update
2332 * comes first then packet buffer DMA. Otherwise driver may
2333 * read stale status block.
2335 if (sc->bge_flags & BGE_FLAG_PCIX) {
2338 devctl = pci_read_config(dev,
2339 sc->bge_pcixcap + PCIXR_COMMAND, 2);
2340 devctl &= ~PCIXM_COMMAND_ERO;
2341 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
2342 devctl &= ~PCIXM_COMMAND_MAX_READ;
2343 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2344 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
2345 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS |
2346 PCIXM_COMMAND_MAX_READ);
2347 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2349 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND,
2353 /* Enable memory arbiter. */
2354 if (BGE_IS_5714_FAMILY(sc)) {
2357 val = CSR_READ_4(sc, BGE_MARB_MODE);
2358 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
2360 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2363 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2364 for (i = 0; i < BGE_TIMEOUT; i++) {
2365 val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2366 if (val & BGE_VCPU_STATUS_INIT_DONE)
2370 if (i == BGE_TIMEOUT) {
2371 if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2376 * Poll until we see the 1's complement of the magic number.
2377 * This indicates that the firmware initialization
2380 for (i = 0; i < BGE_FIRMWARE_TIMEOUT; i++) {
2381 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2382 if (val == ~BGE_MAGIC_NUMBER)
2386 if (i == BGE_FIRMWARE_TIMEOUT) {
2387 if_printf(&sc->arpcom.ac_if, "firmware handshake "
2388 "timed out, found 0x%08x\n", val);
2394 * XXX Wait for the value of the PCISTATE register to
2395 * return to its original pre-reset state. This is a
2396 * fairly good indicator of reset completion. If we don't
2397 * wait for the reset to fully complete, trying to read
2398 * from the device's non-PCI registers may yield garbage
2401 for (i = 0; i < BGE_TIMEOUT; i++) {
2402 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2407 if (sc->bge_flags & BGE_FLAG_PCIE) {
2408 reset = bge_readmem_ind(sc, 0x7c00);
2409 bge_writemem_ind(sc, 0x7c00, reset | (1 << 25));
2412 /* Fix up byte swapping */
2413 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS |
2414 BGE_MODECTL_BYTESWAP_DATA);
2416 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2419 * The 5704 in TBI mode apparently needs some special
2420 * adjustment to insure the SERDES drive level is set
2423 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 &&
2424 (sc->bge_flags & BGE_FLAG_TBI)) {
2427 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2428 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2429 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2432 /* XXX: Broadcom Linux driver. */
2433 if ((sc->bge_flags & BGE_FLAG_PCIE) &&
2434 sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2437 v = CSR_READ_4(sc, 0x7c00);
2438 CSR_WRITE_4(sc, 0x7c00, v | (1<<25));
2445 * Frame reception handling. This is called if there's a frame
2446 * on the receive return list.
2448 * Note: we have to be able to handle two possibilities here:
2449 * 1) the frame is from the jumbo recieve ring
2450 * 2) the frame is from the standard receive ring
2454 bge_rxeof(struct bge_softc *sc)
2457 int stdcnt = 0, jumbocnt = 0;
2459 if (sc->bge_rx_saved_considx ==
2460 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx)
2463 ifp = &sc->arpcom.ac_if;
2465 while (sc->bge_rx_saved_considx !=
2466 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) {
2467 struct bge_rx_bd *cur_rx;
2469 struct mbuf *m = NULL;
2470 uint16_t vlan_tag = 0;
2474 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx];
2476 rxidx = cur_rx->bge_idx;
2477 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
2480 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2482 vlan_tag = cur_rx->bge_vlan_tag;
2485 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2486 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
2489 if (rxidx != sc->bge_jumbo) {
2491 if_printf(ifp, "sw jumbo index(%d) "
2492 "and hw jumbo index(%d) mismatch, drop!\n",
2493 sc->bge_jumbo, rxidx);
2494 bge_setup_rxdesc_jumbo(sc, rxidx);
2498 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx].bge_mbuf;
2499 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2501 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2504 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 0)) {
2506 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2510 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
2513 if (rxidx != sc->bge_std) {
2515 if_printf(ifp, "sw std index(%d) "
2516 "and hw std index(%d) mismatch, drop!\n",
2517 sc->bge_std, rxidx);
2518 bge_setup_rxdesc_std(sc, rxidx);
2522 m = sc->bge_cdata.bge_rx_std_chain[rxidx].bge_mbuf;
2523 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2525 bge_setup_rxdesc_std(sc, sc->bge_std);
2528 if (bge_newbuf_std(sc, sc->bge_std, 0)) {
2530 bge_setup_rxdesc_std(sc, sc->bge_std);
2536 #if !defined(__i386__) && !defined(__x86_64__)
2538 * The x86 allows unaligned accesses, but for other
2539 * platforms we must make sure the payload is aligned.
2541 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) {
2542 bcopy(m->m_data, m->m_data + ETHER_ALIGN,
2544 m->m_data += ETHER_ALIGN;
2547 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2548 m->m_pkthdr.rcvif = ifp;
2550 if (ifp->if_capenable & IFCAP_RXCSUM) {
2551 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2552 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2553 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
2554 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2556 if ((cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) &&
2557 m->m_pkthdr.len >= BGE_MIN_FRAME) {
2558 m->m_pkthdr.csum_data =
2559 cur_rx->bge_tcp_udp_csum;
2560 m->m_pkthdr.csum_flags |=
2561 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
2566 * If we received a packet with a vlan tag, pass it
2567 * to vlan_input() instead of ether_input().
2570 m->m_flags |= M_VLANTAG;
2571 m->m_pkthdr.ether_vlantag = vlan_tag;
2572 have_tag = vlan_tag = 0;
2574 ifp->if_input(ifp, m);
2577 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
2579 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
2581 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
2585 bge_txeof(struct bge_softc *sc)
2587 struct bge_tx_bd *cur_tx = NULL;
2590 if (sc->bge_tx_saved_considx ==
2591 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx)
2594 ifp = &sc->arpcom.ac_if;
2597 * Go through our tx ring and free mbufs for those
2598 * frames that have been sent.
2600 while (sc->bge_tx_saved_considx !=
2601 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) {
2604 idx = sc->bge_tx_saved_considx;
2605 cur_tx = &sc->bge_ldata.bge_tx_ring[idx];
2606 if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
2608 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) {
2609 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
2610 sc->bge_cdata.bge_tx_dmamap[idx]);
2611 m_freem(sc->bge_cdata.bge_tx_chain[idx]);
2612 sc->bge_cdata.bge_tx_chain[idx] = NULL;
2615 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
2619 if (cur_tx != NULL &&
2620 (BGE_TX_RING_CNT - sc->bge_txcnt) >=
2621 (BGE_NSEG_RSVD + BGE_NSEG_SPARE))
2622 ifp->if_flags &= ~IFF_OACTIVE;
2624 if (sc->bge_txcnt == 0)
2627 if (!ifq_is_empty(&ifp->if_snd))
2631 #ifdef DEVICE_POLLING
2634 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
2636 struct bge_softc *sc = ifp->if_softc;
2641 bge_disable_intr(sc);
2643 case POLL_DEREGISTER:
2644 bge_enable_intr(sc);
2646 case POLL_AND_CHECK_STATUS:
2648 * Process link state changes.
2650 status = CSR_READ_4(sc, BGE_MAC_STS);
2651 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2652 sc->bge_link_evt = 0;
2653 sc->bge_link_upd(sc, status);
2657 if (ifp->if_flags & IFF_RUNNING) {
2670 struct bge_softc *sc = xsc;
2671 struct ifnet *ifp = &sc->arpcom.ac_if;
2677 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't
2678 * disable interrupts by writing nonzero like we used to, since with
2679 * our current organization this just gives complications and
2680 * pessimizations for re-enabling interrupts. We used to have races
2681 * instead of the necessary complications. Disabling interrupts
2682 * would just reduce the chance of a status update while we are
2683 * running (by switching to the interrupt-mode coalescence
2684 * parameters), but this chance is already very low so it is more
2685 * efficient to get another interrupt than prevent it.
2687 * We do the ack first to ensure another interrupt if there is a
2688 * status update after the ack. We don't check for the status
2689 * changing later because it is more efficient to get another
2690 * interrupt than prevent it, not quite as above (not checking is
2691 * a smaller optimization than not toggling the interrupt enable,
2692 * since checking doesn't involve PCI accesses and toggling require
2693 * the status check). So toggling would probably be a pessimization
2694 * even with MSI. It would only be needed for using a task queue.
2696 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
2699 * Process link state changes.
2701 status = CSR_READ_4(sc, BGE_MAC_STS);
2702 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2703 sc->bge_link_evt = 0;
2704 sc->bge_link_upd(sc, status);
2707 if (ifp->if_flags & IFF_RUNNING) {
2708 /* Check RX return ring producer/consumer */
2711 /* Check TX ring producer/consumer */
2715 if (sc->bge_coal_chg)
2716 bge_coal_change(sc);
2722 struct bge_softc *sc = xsc;
2723 struct ifnet *ifp = &sc->arpcom.ac_if;
2725 lwkt_serialize_enter(ifp->if_serializer);
2727 if (BGE_IS_5705_PLUS(sc))
2728 bge_stats_update_regs(sc);
2730 bge_stats_update(sc);
2732 if (sc->bge_flags & BGE_FLAG_TBI) {
2734 * Since in TBI mode auto-polling can't be used we should poll
2735 * link status manually. Here we register pending link event
2736 * and trigger interrupt.
2739 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
2740 } else if (!sc->bge_link) {
2741 mii_tick(device_get_softc(sc->bge_miibus));
2744 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
2746 lwkt_serialize_exit(ifp->if_serializer);
2750 bge_stats_update_regs(struct bge_softc *sc)
2752 struct ifnet *ifp = &sc->arpcom.ac_if;
2753 struct bge_mac_stats_regs stats;
2757 s = (uint32_t *)&stats;
2758 for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
2759 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
2763 ifp->if_collisions +=
2764 (stats.dot3StatsSingleCollisionFrames +
2765 stats.dot3StatsMultipleCollisionFrames +
2766 stats.dot3StatsExcessiveCollisions +
2767 stats.dot3StatsLateCollisions) -
2772 bge_stats_update(struct bge_softc *sc)
2774 struct ifnet *ifp = &sc->arpcom.ac_if;
2777 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
2779 #define READ_STAT(sc, stats, stat) \
2780 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
2782 ifp->if_collisions +=
2783 (READ_STAT(sc, stats,
2784 txstats.dot3StatsSingleCollisionFrames.bge_addr_lo) +
2785 READ_STAT(sc, stats,
2786 txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo) +
2787 READ_STAT(sc, stats,
2788 txstats.dot3StatsExcessiveCollisions.bge_addr_lo) +
2789 READ_STAT(sc, stats,
2790 txstats.dot3StatsLateCollisions.bge_addr_lo)) -
2796 ifp->if_collisions +=
2797 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames +
2798 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames +
2799 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions +
2800 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) -
2806 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
2807 * pointers to descriptors.
2810 bge_encap(struct bge_softc *sc, struct mbuf **m_head0, uint32_t *txidx)
2812 struct bge_tx_bd *d = NULL;
2813 uint16_t csum_flags = 0;
2814 bus_dma_segment_t segs[BGE_NSEG_NEW];
2816 int error, maxsegs, nsegs, idx, i;
2817 struct mbuf *m_head = *m_head0;
2819 if (m_head->m_pkthdr.csum_flags) {
2820 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2821 csum_flags |= BGE_TXBDFLAG_IP_CSUM;
2822 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
2823 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
2824 if (m_head->m_flags & M_LASTFRAG)
2825 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
2826 else if (m_head->m_flags & M_FRAG)
2827 csum_flags |= BGE_TXBDFLAG_IP_FRAG;
2831 map = sc->bge_cdata.bge_tx_dmamap[idx];
2833 maxsegs = (BGE_TX_RING_CNT - sc->bge_txcnt) - BGE_NSEG_RSVD;
2834 KASSERT(maxsegs >= BGE_NSEG_SPARE,
2835 ("not enough segments %d", maxsegs));
2837 if (maxsegs > BGE_NSEG_NEW)
2838 maxsegs = BGE_NSEG_NEW;
2841 * Pad outbound frame to BGE_MIN_FRAME for an unusual reason.
2842 * The bge hardware will pad out Tx runts to BGE_MIN_FRAME,
2843 * but when such padded frames employ the bge IP/TCP checksum
2844 * offload, the hardware checksum assist gives incorrect results
2845 * (possibly from incorporating its own padding into the UDP/TCP
2846 * checksum; who knows). If we pad such runts with zeros, the
2847 * onboard checksum comes out correct.
2849 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
2850 m_head->m_pkthdr.len < BGE_MIN_FRAME) {
2851 error = m_devpad(m_head, BGE_MIN_FRAME);
2856 error = bus_dmamap_load_mbuf_defrag(sc->bge_cdata.bge_tx_mtag, map,
2857 m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
2862 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE);
2864 for (i = 0; ; i++) {
2865 d = &sc->bge_ldata.bge_tx_ring[idx];
2867 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
2868 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
2869 d->bge_len = segs[i].ds_len;
2870 d->bge_flags = csum_flags;
2874 BGE_INC(idx, BGE_TX_RING_CNT);
2876 /* Mark the last segment as end of packet... */
2877 d->bge_flags |= BGE_TXBDFLAG_END;
2879 /* Set vlan tag to the first segment of the packet. */
2880 d = &sc->bge_ldata.bge_tx_ring[*txidx];
2881 if (m_head->m_flags & M_VLANTAG) {
2882 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
2883 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
2885 d->bge_vlan_tag = 0;
2889 * Insure that the map for this transmission is placed at
2890 * the array index of the last descriptor in this chain.
2892 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx];
2893 sc->bge_cdata.bge_tx_dmamap[idx] = map;
2894 sc->bge_cdata.bge_tx_chain[idx] = m_head;
2895 sc->bge_txcnt += nsegs;
2897 BGE_INC(idx, BGE_TX_RING_CNT);
2908 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2909 * to the mbuf data regions directly in the transmit descriptors.
2912 bge_start(struct ifnet *ifp)
2914 struct bge_softc *sc = ifp->if_softc;
2915 struct mbuf *m_head = NULL;
2919 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
2922 prodidx = sc->bge_tx_prodidx;
2925 while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
2926 m_head = ifq_dequeue(&ifp->if_snd, NULL);
2932 * The code inside the if() block is never reached since we
2933 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
2934 * requests to checksum TCP/UDP in a fragmented packet.
2937 * safety overkill. If this is a fragmented packet chain
2938 * with delayed TCP/UDP checksums, then only encapsulate
2939 * it if we have enough descriptors to handle the entire
2941 * (paranoia -- may not actually be needed)
2943 if ((m_head->m_flags & M_FIRSTFRAG) &&
2944 (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
2945 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
2946 m_head->m_pkthdr.csum_data + BGE_NSEG_RSVD) {
2947 ifp->if_flags |= IFF_OACTIVE;
2948 ifq_prepend(&ifp->if_snd, m_head);
2954 * Sanity check: avoid coming within BGE_NSEG_RSVD
2955 * descriptors of the end of the ring. Also make
2956 * sure there are BGE_NSEG_SPARE descriptors for
2957 * jumbo buffers' defragmentation.
2959 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
2960 (BGE_NSEG_RSVD + BGE_NSEG_SPARE)) {
2961 ifp->if_flags |= IFF_OACTIVE;
2962 ifq_prepend(&ifp->if_snd, m_head);
2967 * Pack the data into the transmit ring. If we
2968 * don't have room, set the OACTIVE flag and wait
2969 * for the NIC to drain the ring.
2971 if (bge_encap(sc, &m_head, &prodidx)) {
2972 ifp->if_flags |= IFF_OACTIVE;
2978 ETHER_BPF_MTAP(ifp, m_head);
2985 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
2986 /* 5700 b2 errata */
2987 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
2988 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
2990 sc->bge_tx_prodidx = prodidx;
2993 * Set a timeout in case the chip goes out to lunch.
3001 struct bge_softc *sc = xsc;
3002 struct ifnet *ifp = &sc->arpcom.ac_if;
3005 ASSERT_SERIALIZED(ifp->if_serializer);
3007 if (ifp->if_flags & IFF_RUNNING)
3010 /* Cancel pending I/O and flush buffers. */
3016 * Init the various state machines, ring
3017 * control blocks and firmware.
3019 if (bge_blockinit(sc)) {
3020 if_printf(ifp, "initialization failure\n");
3026 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
3027 ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
3029 /* Load our MAC address. */
3030 m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
3031 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
3032 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
3034 /* Enable or disable promiscuous mode as needed. */
3037 /* Program multicast filter. */
3041 if (bge_init_rx_ring_std(sc)) {
3042 if_printf(ifp, "RX ring initialization failed\n");
3048 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
3049 * memory to insure that the chip has in fact read the first
3050 * entry of the ring.
3052 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
3054 for (i = 0; i < 10; i++) {
3056 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
3057 if (v == (MCLBYTES - ETHER_ALIGN))
3061 if_printf(ifp, "5705 A0 chip failed to load RX ring\n");
3064 /* Init jumbo RX ring. */
3065 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3066 if (bge_init_rx_ring_jumbo(sc)) {
3067 if_printf(ifp, "Jumbo RX ring initialization failed\n");
3073 /* Init our RX return ring index */
3074 sc->bge_rx_saved_considx = 0;
3077 bge_init_tx_ring(sc);
3079 /* Turn on transmitter */
3080 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE);
3082 /* Turn on receiver */
3083 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3085 /* Tell firmware we're alive. */
3086 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3088 /* Enable host interrupts if polling(4) is not enabled. */
3089 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA);
3090 #ifdef DEVICE_POLLING
3091 if (ifp->if_flags & IFF_POLLING)
3092 bge_disable_intr(sc);
3095 bge_enable_intr(sc);
3097 bge_ifmedia_upd(ifp);
3099 ifp->if_flags |= IFF_RUNNING;
3100 ifp->if_flags &= ~IFF_OACTIVE;
3102 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3106 * Set media options.
3109 bge_ifmedia_upd(struct ifnet *ifp)
3111 struct bge_softc *sc = ifp->if_softc;
3113 /* If this is a 1000baseX NIC, enable the TBI port. */
3114 if (sc->bge_flags & BGE_FLAG_TBI) {
3115 struct ifmedia *ifm = &sc->bge_ifmedia;
3117 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3120 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3123 * The BCM5704 ASIC appears to have a special
3124 * mechanism for programming the autoneg
3125 * advertisement registers in TBI mode.
3127 if (!bge_fake_autoneg &&
3128 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3131 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
3132 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
3133 sgdig |= BGE_SGDIGCFG_AUTO |
3134 BGE_SGDIGCFG_PAUSE_CAP |
3135 BGE_SGDIGCFG_ASYM_PAUSE;
3136 CSR_WRITE_4(sc, BGE_SGDIG_CFG,
3137 sgdig | BGE_SGDIGCFG_SEND);
3139 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
3143 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3144 BGE_CLRBIT(sc, BGE_MAC_MODE,
3145 BGE_MACMODE_HALF_DUPLEX);
3147 BGE_SETBIT(sc, BGE_MAC_MODE,
3148 BGE_MACMODE_HALF_DUPLEX);
3155 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3159 if (mii->mii_instance) {
3160 struct mii_softc *miisc;
3162 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3163 mii_phy_reset(miisc);
3171 * Report current media status.
3174 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3176 struct bge_softc *sc = ifp->if_softc;
3178 if (sc->bge_flags & BGE_FLAG_TBI) {
3179 ifmr->ifm_status = IFM_AVALID;
3180 ifmr->ifm_active = IFM_ETHER;
3181 if (CSR_READ_4(sc, BGE_MAC_STS) &
3182 BGE_MACSTAT_TBI_PCS_SYNCHED) {
3183 ifmr->ifm_status |= IFM_ACTIVE;
3185 ifmr->ifm_active |= IFM_NONE;
3189 ifmr->ifm_active |= IFM_1000_SX;
3190 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3191 ifmr->ifm_active |= IFM_HDX;
3193 ifmr->ifm_active |= IFM_FDX;
3195 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3198 ifmr->ifm_active = mii->mii_media_active;
3199 ifmr->ifm_status = mii->mii_media_status;
3204 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3206 struct bge_softc *sc = ifp->if_softc;
3207 struct ifreq *ifr = (struct ifreq *)data;
3208 int mask, error = 0;
3210 ASSERT_SERIALIZED(ifp->if_serializer);
3214 if ((!BGE_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3215 (BGE_IS_JUMBO_CAPABLE(sc) &&
3216 ifr->ifr_mtu > BGE_JUMBO_MTU)) {
3218 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3219 ifp->if_mtu = ifr->ifr_mtu;
3220 ifp->if_flags &= ~IFF_RUNNING;
3225 if (ifp->if_flags & IFF_UP) {
3226 if (ifp->if_flags & IFF_RUNNING) {
3227 mask = ifp->if_flags ^ sc->bge_if_flags;
3230 * If only the state of the PROMISC flag
3231 * changed, then just use the 'set promisc
3232 * mode' command instead of reinitializing
3233 * the entire NIC. Doing a full re-init
3234 * means reloading the firmware and waiting
3235 * for it to start up, which may take a
3236 * second or two. Similarly for ALLMULTI.
3238 if (mask & IFF_PROMISC)
3240 if (mask & IFF_ALLMULTI)
3246 if (ifp->if_flags & IFF_RUNNING)
3249 sc->bge_if_flags = ifp->if_flags;
3253 if (ifp->if_flags & IFF_RUNNING)
3258 if (sc->bge_flags & BGE_FLAG_TBI) {
3259 error = ifmedia_ioctl(ifp, ifr,
3260 &sc->bge_ifmedia, command);
3262 struct mii_data *mii;
3264 mii = device_get_softc(sc->bge_miibus);
3265 error = ifmedia_ioctl(ifp, ifr,
3266 &mii->mii_media, command);
3270 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3271 if (mask & IFCAP_HWCSUM) {
3272 ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3273 if (IFCAP_HWCSUM & ifp->if_capenable)
3274 ifp->if_hwassist = BGE_CSUM_FEATURES;
3276 ifp->if_hwassist = 0;
3280 error = ether_ioctl(ifp, command, data);
3287 bge_watchdog(struct ifnet *ifp)
3289 struct bge_softc *sc = ifp->if_softc;
3291 if_printf(ifp, "watchdog timeout -- resetting\n");
3293 ifp->if_flags &= ~IFF_RUNNING;
3298 if (!ifq_is_empty(&ifp->if_snd))
3303 * Stop the adapter and free any mbufs allocated to the
3307 bge_stop(struct bge_softc *sc)
3309 struct ifnet *ifp = &sc->arpcom.ac_if;
3311 ASSERT_SERIALIZED(ifp->if_serializer);
3313 callout_stop(&sc->bge_stat_timer);
3316 * Disable all of the receiver blocks
3318 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3319 BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3320 BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3321 if (!BGE_IS_5705_PLUS(sc))
3322 BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
3323 BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3324 BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3325 BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3328 * Disable all of the transmit blocks
3330 BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3331 BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3332 BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3333 BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3334 BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3335 if (!BGE_IS_5705_PLUS(sc))
3336 BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
3337 BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3340 * Shut down all of the memory managers and related
3343 BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3344 BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3345 if (!BGE_IS_5705_PLUS(sc))
3346 BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
3347 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3348 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3349 if (!BGE_IS_5705_PLUS(sc)) {
3350 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
3351 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
3354 /* Disable host interrupts. */
3355 bge_disable_intr(sc);
3358 * Tell firmware we're shutting down.
3360 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3362 /* Free the RX lists. */
3363 bge_free_rx_ring_std(sc);
3365 /* Free jumbo RX list. */
3366 if (BGE_IS_JUMBO_CAPABLE(sc))
3367 bge_free_rx_ring_jumbo(sc);
3369 /* Free TX buffers. */
3370 bge_free_tx_ring(sc);
3373 sc->bge_coal_chg = 0;
3375 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
3377 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3382 * Stop all chip I/O so that the kernel's probe routines don't
3383 * get confused by errant DMAs when rebooting.
3386 bge_shutdown(device_t dev)
3388 struct bge_softc *sc = device_get_softc(dev);
3389 struct ifnet *ifp = &sc->arpcom.ac_if;
3391 lwkt_serialize_enter(ifp->if_serializer);
3394 lwkt_serialize_exit(ifp->if_serializer);
3398 bge_suspend(device_t dev)
3400 struct bge_softc *sc = device_get_softc(dev);
3401 struct ifnet *ifp = &sc->arpcom.ac_if;
3403 lwkt_serialize_enter(ifp->if_serializer);
3405 lwkt_serialize_exit(ifp->if_serializer);
3411 bge_resume(device_t dev)
3413 struct bge_softc *sc = device_get_softc(dev);
3414 struct ifnet *ifp = &sc->arpcom.ac_if;
3416 lwkt_serialize_enter(ifp->if_serializer);
3418 if (ifp->if_flags & IFF_UP) {
3421 if (!ifq_is_empty(&ifp->if_snd))
3425 lwkt_serialize_exit(ifp->if_serializer);
3431 bge_setpromisc(struct bge_softc *sc)
3433 struct ifnet *ifp = &sc->arpcom.ac_if;
3435 if (ifp->if_flags & IFF_PROMISC)
3436 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3438 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3442 bge_dma_free(struct bge_softc *sc)
3446 /* Destroy RX mbuf DMA stuffs. */
3447 if (sc->bge_cdata.bge_rx_mtag != NULL) {
3448 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3449 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3450 sc->bge_cdata.bge_rx_std_dmamap[i]);
3452 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3453 sc->bge_cdata.bge_rx_tmpmap);
3454 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3457 /* Destroy TX mbuf DMA stuffs. */
3458 if (sc->bge_cdata.bge_tx_mtag != NULL) {
3459 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3460 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3461 sc->bge_cdata.bge_tx_dmamap[i]);
3463 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3466 /* Destroy standard RX ring */
3467 bge_dma_block_free(sc->bge_cdata.bge_rx_std_ring_tag,
3468 sc->bge_cdata.bge_rx_std_ring_map,
3469 sc->bge_ldata.bge_rx_std_ring);
3471 if (BGE_IS_JUMBO_CAPABLE(sc))
3472 bge_free_jumbo_mem(sc);
3474 /* Destroy RX return ring */
3475 bge_dma_block_free(sc->bge_cdata.bge_rx_return_ring_tag,
3476 sc->bge_cdata.bge_rx_return_ring_map,
3477 sc->bge_ldata.bge_rx_return_ring);
3479 /* Destroy TX ring */
3480 bge_dma_block_free(sc->bge_cdata.bge_tx_ring_tag,
3481 sc->bge_cdata.bge_tx_ring_map,
3482 sc->bge_ldata.bge_tx_ring);
3484 /* Destroy status block */
3485 bge_dma_block_free(sc->bge_cdata.bge_status_tag,
3486 sc->bge_cdata.bge_status_map,
3487 sc->bge_ldata.bge_status_block);
3489 /* Destroy statistics block */
3490 bge_dma_block_free(sc->bge_cdata.bge_stats_tag,
3491 sc->bge_cdata.bge_stats_map,
3492 sc->bge_ldata.bge_stats);
3494 /* Destroy the parent tag */
3495 if (sc->bge_cdata.bge_parent_tag != NULL)
3496 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag);
3500 bge_dma_alloc(struct bge_softc *sc)
3502 struct ifnet *ifp = &sc->arpcom.ac_if;
3505 bus_size_t boundary;
3508 if (sc->bge_flags & BGE_FLAG_BOUNDARY_4G)
3509 boundary = BGE_DMA_BOUNDARY_4G;
3511 lowaddr = BUS_SPACE_MAXADDR;
3512 if (sc->bge_flags & BGE_FLAG_MAXADDR_40BIT)
3513 lowaddr = BGE_DMA_MAXADDR_40BIT;
3516 * Allocate the parent bus DMA tag appropriate for PCI.
3518 error = bus_dma_tag_create(NULL, 1, boundary,
3519 lowaddr, BUS_SPACE_MAXADDR,
3521 BUS_SPACE_MAXSIZE_32BIT, 0,
3522 BUS_SPACE_MAXSIZE_32BIT,
3523 0, &sc->bge_cdata.bge_parent_tag);
3525 if_printf(ifp, "could not allocate parent dma tag\n");
3530 * Create DMA tag and maps for RX mbufs.
3532 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3533 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3534 NULL, NULL, MCLBYTES, 1, MCLBYTES,
3535 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
3536 &sc->bge_cdata.bge_rx_mtag);
3538 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
3542 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3543 BUS_DMA_WAITOK, &sc->bge_cdata.bge_rx_tmpmap);
3545 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3546 sc->bge_cdata.bge_rx_mtag = NULL;
3550 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3551 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3553 &sc->bge_cdata.bge_rx_std_dmamap[i]);
3557 for (j = 0; j < i; ++j) {
3558 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3559 sc->bge_cdata.bge_rx_std_dmamap[j]);
3561 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3562 sc->bge_cdata.bge_rx_mtag = NULL;
3564 if_printf(ifp, "could not create DMA map for RX\n");
3570 * Create DMA tag and maps for TX mbufs.
3572 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3573 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3575 BGE_JUMBO_FRAMELEN, BGE_NSEG_NEW, MCLBYTES,
3576 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
3578 &sc->bge_cdata.bge_tx_mtag);
3580 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
3584 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3585 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag,
3586 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
3587 &sc->bge_cdata.bge_tx_dmamap[i]);
3591 for (j = 0; j < i; ++j) {
3592 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3593 sc->bge_cdata.bge_tx_dmamap[j]);
3595 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3596 sc->bge_cdata.bge_tx_mtag = NULL;
3598 if_printf(ifp, "could not create DMA map for TX\n");
3604 * Create DMA stuffs for standard RX ring.
3606 error = bge_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
3607 &sc->bge_cdata.bge_rx_std_ring_tag,
3608 &sc->bge_cdata.bge_rx_std_ring_map,
3609 (void *)&sc->bge_ldata.bge_rx_std_ring,
3610 &sc->bge_ldata.bge_rx_std_ring_paddr);
3612 if_printf(ifp, "could not create std RX ring\n");
3617 * Create jumbo buffer pool.
3619 if (BGE_IS_JUMBO_CAPABLE(sc)) {
3620 error = bge_alloc_jumbo_mem(sc);
3622 if_printf(ifp, "could not create jumbo buffer pool\n");
3628 * Create DMA stuffs for RX return ring.
3630 error = bge_dma_block_alloc(sc, BGE_RX_RTN_RING_SZ(sc),
3631 &sc->bge_cdata.bge_rx_return_ring_tag,
3632 &sc->bge_cdata.bge_rx_return_ring_map,
3633 (void *)&sc->bge_ldata.bge_rx_return_ring,
3634 &sc->bge_ldata.bge_rx_return_ring_paddr);
3636 if_printf(ifp, "could not create RX ret ring\n");
3641 * Create DMA stuffs for TX ring.
3643 error = bge_dma_block_alloc(sc, BGE_TX_RING_SZ,
3644 &sc->bge_cdata.bge_tx_ring_tag,
3645 &sc->bge_cdata.bge_tx_ring_map,
3646 (void *)&sc->bge_ldata.bge_tx_ring,
3647 &sc->bge_ldata.bge_tx_ring_paddr);
3649 if_printf(ifp, "could not create TX ring\n");
3654 * Create DMA stuffs for status block.
3656 error = bge_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
3657 &sc->bge_cdata.bge_status_tag,
3658 &sc->bge_cdata.bge_status_map,
3659 (void *)&sc->bge_ldata.bge_status_block,
3660 &sc->bge_ldata.bge_status_block_paddr);
3662 if_printf(ifp, "could not create status block\n");
3667 * Create DMA stuffs for statistics block.
3669 error = bge_dma_block_alloc(sc, BGE_STATS_SZ,
3670 &sc->bge_cdata.bge_stats_tag,
3671 &sc->bge_cdata.bge_stats_map,
3672 (void *)&sc->bge_ldata.bge_stats,
3673 &sc->bge_ldata.bge_stats_paddr);
3675 if_printf(ifp, "could not create stats block\n");
3682 bge_dma_block_alloc(struct bge_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
3683 bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
3688 error = bus_dmamem_coherent(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0,
3689 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3690 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
3694 *tag = dmem.dmem_tag;
3695 *map = dmem.dmem_map;
3696 *addr = dmem.dmem_addr;
3697 *paddr = dmem.dmem_busaddr;
3703 bge_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
3706 bus_dmamap_unload(tag, map);
3707 bus_dmamem_free(tag, addr, map);
3708 bus_dma_tag_destroy(tag);
3713 * Grrr. The link status word in the status block does
3714 * not work correctly on the BCM5700 rev AX and BX chips,
3715 * according to all available information. Hence, we have
3716 * to enable MII interrupts in order to properly obtain
3717 * async link changes. Unfortunately, this also means that
3718 * we have to read the MAC status register to detect link
3719 * changes, thereby adding an additional register access to
3720 * the interrupt handler.
3722 * XXX: perhaps link state detection procedure used for
3723 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions.
3726 bge_bcm5700_link_upd(struct bge_softc *sc, uint32_t status __unused)
3728 struct ifnet *ifp = &sc->arpcom.ac_if;
3729 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3733 if (!sc->bge_link &&
3734 (mii->mii_media_status & IFM_ACTIVE) &&
3735 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3738 if_printf(ifp, "link UP\n");
3739 } else if (sc->bge_link &&
3740 (!(mii->mii_media_status & IFM_ACTIVE) ||
3741 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3744 if_printf(ifp, "link DOWN\n");
3747 /* Clear the interrupt. */
3748 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT);
3749 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR);
3750 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS);
3754 bge_tbi_link_upd(struct bge_softc *sc, uint32_t status)
3756 struct ifnet *ifp = &sc->arpcom.ac_if;
3758 #define PCS_ENCODE_ERR (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
3761 * Sometimes PCS encoding errors are detected in
3762 * TBI mode (on fiber NICs), and for some reason
3763 * the chip will signal them as link changes.
3764 * If we get a link change event, but the 'PCS
3765 * encoding error' bit in the MAC status register
3766 * is set, don't bother doing a link check.
3767 * This avoids spurious "gigabit link up" messages
3768 * that sometimes appear on fiber NICs during
3769 * periods of heavy traffic.
3771 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
3772 if (!sc->bge_link) {
3774 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3775 BGE_CLRBIT(sc, BGE_MAC_MODE,
3776 BGE_MACMODE_TBI_SEND_CFGS);
3778 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
3781 if_printf(ifp, "link UP\n");
3783 ifp->if_link_state = LINK_STATE_UP;
3784 if_link_state_change(ifp);
3786 } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
3791 if_printf(ifp, "link DOWN\n");
3793 ifp->if_link_state = LINK_STATE_DOWN;
3794 if_link_state_change(ifp);
3798 #undef PCS_ENCODE_ERR
3800 /* Clear the attention. */
3801 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3802 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3803 BGE_MACSTAT_LINK_CHANGED);
3807 bge_copper_link_upd(struct bge_softc *sc, uint32_t status __unused)
3810 * Check that the AUTOPOLL bit is set before
3811 * processing the event as a real link change.
3812 * Turning AUTOPOLL on and off in the MII read/write
3813 * functions will often trigger a link status
3814 * interrupt for no reason.
3816 if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) {
3817 struct ifnet *ifp = &sc->arpcom.ac_if;
3818 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3822 if (!sc->bge_link &&
3823 (mii->mii_media_status & IFM_ACTIVE) &&
3824 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3827 if_printf(ifp, "link UP\n");
3828 } else if (sc->bge_link &&
3829 (!(mii->mii_media_status & IFM_ACTIVE) ||
3830 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3833 if_printf(ifp, "link DOWN\n");
3837 /* Clear the attention. */
3838 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3839 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3840 BGE_MACSTAT_LINK_CHANGED);
3844 bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
3846 struct bge_softc *sc = arg1;
3848 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3849 &sc->bge_rx_coal_ticks,
3850 BGE_RX_COAL_TICKS_CHG);
3854 bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
3856 struct bge_softc *sc = arg1;
3858 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3859 &sc->bge_tx_coal_ticks,
3860 BGE_TX_COAL_TICKS_CHG);
3864 bge_sysctl_rx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3866 struct bge_softc *sc = arg1;
3868 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3869 &sc->bge_rx_max_coal_bds,
3870 BGE_RX_MAX_COAL_BDS_CHG);
3874 bge_sysctl_tx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3876 struct bge_softc *sc = arg1;
3878 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3879 &sc->bge_tx_max_coal_bds,
3880 BGE_TX_MAX_COAL_BDS_CHG);
3884 bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
3885 uint32_t coal_chg_mask)
3887 struct bge_softc *sc = arg1;
3888 struct ifnet *ifp = &sc->arpcom.ac_if;
3891 lwkt_serialize_enter(ifp->if_serializer);
3894 error = sysctl_handle_int(oidp, &v, 0, req);
3895 if (!error && req->newptr != NULL) {
3900 sc->bge_coal_chg |= coal_chg_mask;
3904 lwkt_serialize_exit(ifp->if_serializer);
3909 bge_coal_change(struct bge_softc *sc)
3911 struct ifnet *ifp = &sc->arpcom.ac_if;
3914 ASSERT_SERIALIZED(ifp->if_serializer);
3916 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_CHG) {
3917 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
3918 sc->bge_rx_coal_ticks);
3920 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
3923 if_printf(ifp, "rx_coal_ticks -> %u\n",
3924 sc->bge_rx_coal_ticks);
3928 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_CHG) {
3929 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
3930 sc->bge_tx_coal_ticks);
3932 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
3935 if_printf(ifp, "tx_coal_ticks -> %u\n",
3936 sc->bge_tx_coal_ticks);
3940 if (sc->bge_coal_chg & BGE_RX_MAX_COAL_BDS_CHG) {
3941 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
3942 sc->bge_rx_max_coal_bds);
3944 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
3947 if_printf(ifp, "rx_max_coal_bds -> %u\n",
3948 sc->bge_rx_max_coal_bds);
3952 if (sc->bge_coal_chg & BGE_TX_MAX_COAL_BDS_CHG) {
3953 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
3954 sc->bge_tx_max_coal_bds);
3956 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
3959 if_printf(ifp, "tx_max_coal_bds -> %u\n",
3960 sc->bge_tx_max_coal_bds);
3964 sc->bge_coal_chg = 0;
3968 bge_enable_intr(struct bge_softc *sc)
3970 struct ifnet *ifp = &sc->arpcom.ac_if;
3972 lwkt_serialize_handler_enable(ifp->if_serializer);
3977 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
3980 * Unmask the interrupt when we stop polling.
3982 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
3985 * Trigger another interrupt, since above writing
3986 * to interrupt mailbox0 may acknowledge pending
3989 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
3993 bge_disable_intr(struct bge_softc *sc)
3995 struct ifnet *ifp = &sc->arpcom.ac_if;
3998 * Mask the interrupt when we start polling.
4000 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
4003 * Acknowledge possible asserted interrupt.
4005 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
4007 lwkt_serialize_handler_disable(ifp->if_serializer);
4011 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[])
4016 mac_addr = bge_readmem_ind(sc, 0x0c14);
4017 if ((mac_addr >> 16) == 0x484b) {
4018 ether_addr[0] = (uint8_t)(mac_addr >> 8);
4019 ether_addr[1] = (uint8_t)mac_addr;
4020 mac_addr = bge_readmem_ind(sc, 0x0c18);
4021 ether_addr[2] = (uint8_t)(mac_addr >> 24);
4022 ether_addr[3] = (uint8_t)(mac_addr >> 16);
4023 ether_addr[4] = (uint8_t)(mac_addr >> 8);
4024 ether_addr[5] = (uint8_t)mac_addr;
4031 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[])
4033 int mac_offset = BGE_EE_MAC_OFFSET;
4035 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
4036 mac_offset = BGE_EE_MAC_OFFSET_5906;
4038 return bge_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4042 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[])
4044 if (sc->bge_flags & BGE_FLAG_NO_EEPROM)
4047 return bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4052 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[])
4054 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = {
4055 /* NOTE: Order is critical */
4057 bge_get_eaddr_nvram,
4058 bge_get_eaddr_eeprom,
4061 const bge_eaddr_fcn_t *func;
4063 for (func = bge_eaddr_funcs; *func != NULL; ++func) {
4064 if ((*func)(sc, eaddr) == 0)
4067 return (*func == NULL ? ENXIO : 0);