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 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1501 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH,
1502 BGE_JUMBO_RX_RING_CNT/8);
1506 * Disable all unused send rings by setting the 'ring disabled'
1507 * bit in the flags field of all the TX send ring control blocks.
1508 * These are located in NIC memory.
1510 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1511 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) {
1512 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1513 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1514 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1515 vrcb += sizeof(struct bge_rcb);
1518 /* Configure TX RCB 0 (we use only the first ring) */
1519 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1520 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr);
1521 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1522 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1523 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1524 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1525 if (!BGE_IS_5705_PLUS(sc)) {
1526 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1527 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1530 /* Disable all unused RX return rings */
1531 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1532 for (i = 0; i < BGE_RX_RINGS_MAX; i++) {
1533 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1534 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1535 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1536 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt,
1537 BGE_RCB_FLAG_RING_DISABLED));
1538 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1539 bge_writembx(sc, BGE_MBX_RX_CONS0_LO +
1540 (i * (sizeof(uint64_t))), 0);
1541 vrcb += sizeof(struct bge_rcb);
1544 /* Initialize RX ring indexes */
1545 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1546 if (BGE_IS_JUMBO_CAPABLE(sc))
1547 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1548 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
1551 * Set up RX return ring 0
1552 * Note that the NIC address for RX return rings is 0x00000000.
1553 * The return rings live entirely within the host, so the
1554 * nicaddr field in the RCB isn't used.
1556 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1557 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr);
1558 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1559 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1560 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0x00000000);
1561 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1562 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
1564 /* Set random backoff seed for TX */
1565 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1566 sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1567 sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1568 sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1569 BGE_TX_BACKOFF_SEED_MASK);
1571 /* Set inter-packet gap */
1572 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
1575 * Specify which ring to use for packets that don't match
1578 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1581 * Configure number of RX lists. One interrupt distribution
1582 * list, sixteen active lists, one bad frames class.
1584 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1586 /* Inialize RX list placement stats mask. */
1587 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1588 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1590 /* Disable host coalescing until we get it set up */
1591 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1593 /* Poll to make sure it's shut down. */
1594 for (i = 0; i < BGE_TIMEOUT; i++) {
1595 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1600 if (i == BGE_TIMEOUT) {
1601 if_printf(&sc->arpcom.ac_if,
1602 "host coalescing engine failed to idle\n");
1606 /* Set up host coalescing defaults */
1607 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
1608 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
1609 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds);
1610 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds);
1611 if (!BGE_IS_5705_PLUS(sc)) {
1612 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0);
1613 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0);
1615 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1);
1616 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1);
1618 /* Set up address of statistics block */
1619 if (!BGE_IS_5705_PLUS(sc)) {
1620 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI,
1621 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr));
1622 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
1623 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr));
1625 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
1626 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
1627 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
1630 /* Set up address of status block */
1631 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1632 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr));
1633 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1634 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr));
1635 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx = 0;
1636 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx = 0;
1639 * Set up status block partail update size.
1641 * Because only single TX ring, RX produce ring and Rx return ring
1642 * are used, ask device to update only minimum part of status block
1643 * except for BCM5700 AX/BX, whose status block partial update size
1644 * can't be configured.
1646 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1647 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) {
1648 /* XXX Actually reserved on BCM5700 AX/BX */
1649 val = BGE_STATBLKSZ_FULL;
1651 val = BGE_STATBLKSZ_32BYTE;
1654 /* Turn on host coalescing state machine */
1655 CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE);
1657 /* Turn on RX BD completion state machine and enable attentions */
1658 CSR_WRITE_4(sc, BGE_RBDC_MODE,
1659 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1661 /* Turn on RX list placement state machine */
1662 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1664 /* Turn on RX list selector state machine. */
1665 if (!BGE_IS_5705_PLUS(sc))
1666 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
1668 /* Turn on DMA, clear stats */
1669 CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB|
1670 BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR|
1671 BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB|
1672 BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB|
1673 ((sc->bge_flags & BGE_FLAG_TBI) ?
1674 BGE_PORTMODE_TBI : BGE_PORTMODE_MII));
1676 /* Set misc. local control, enable interrupts on attentions */
1677 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1680 /* Assert GPIO pins for PHY reset */
1681 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1682 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1683 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1684 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1687 /* Turn on DMA completion state machine */
1688 if (!BGE_IS_5705_PLUS(sc))
1689 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
1691 /* Turn on write DMA state machine */
1692 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1693 if (BGE_IS_5755_PLUS(sc)) {
1694 /* Enable host coalescing bug fix. */
1695 val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1697 CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1700 /* Turn on read DMA state machine */
1701 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1702 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1703 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1704 sc->bge_asicrev == BGE_ASICREV_BCM57780)
1705 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1706 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1707 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1708 if (sc->bge_flags & BGE_FLAG_PCIE)
1709 val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1710 CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1713 /* Turn on RX data completion state machine */
1714 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1716 /* Turn on RX BD initiator state machine */
1717 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1719 /* Turn on RX data and RX BD initiator state machine */
1720 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1722 /* Turn on Mbuf cluster free state machine */
1723 if (!BGE_IS_5705_PLUS(sc))
1724 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
1726 /* Turn on send BD completion state machine */
1727 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1729 /* Turn on send data completion state machine */
1730 val = BGE_SDCMODE_ENABLE;
1731 if (sc->bge_asicrev == BGE_ASICREV_BCM5761)
1732 val |= BGE_SDCMODE_CDELAY;
1733 CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1735 /* Turn on send data initiator state machine */
1736 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1738 /* Turn on send BD initiator state machine */
1739 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1741 /* Turn on send BD selector state machine */
1742 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1744 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1745 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1746 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1748 /* ack/clear link change events */
1749 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1750 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1751 BGE_MACSTAT_LINK_CHANGED);
1752 CSR_WRITE_4(sc, BGE_MI_STS, 0);
1754 /* Enable PHY auto polling (for MII/GMII only) */
1755 if (sc->bge_flags & BGE_FLAG_TBI) {
1756 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1758 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16);
1759 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1760 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
1761 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
1762 BGE_EVTENB_MI_INTERRUPT);
1767 * Clear any pending link state attention.
1768 * Otherwise some link state change events may be lost until attention
1769 * is cleared by bge_intr() -> bge_softc.bge_link_upd() sequence.
1770 * It's not necessary on newer BCM chips - perhaps enabling link
1771 * state change attentions implies clearing pending attention.
1773 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1774 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1775 BGE_MACSTAT_LINK_CHANGED);
1777 /* Enable link state change attentions. */
1778 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1784 * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1785 * against our list and return its name if we find a match. Note
1786 * that since the Broadcom controller contains VPD support, we
1787 * can get the device name string from the controller itself instead
1788 * of the compiled-in string. This is a little slow, but it guarantees
1789 * we'll always announce the right product name.
1792 bge_probe(device_t dev)
1794 const struct bge_type *t;
1795 uint16_t product, vendor;
1797 product = pci_get_device(dev);
1798 vendor = pci_get_vendor(dev);
1800 for (t = bge_devs; t->bge_name != NULL; t++) {
1801 if (vendor == t->bge_vid && product == t->bge_did)
1804 if (t->bge_name == NULL)
1807 device_set_desc(dev, t->bge_name);
1808 if (pci_get_subvendor(dev) == PCI_VENDOR_DELL) {
1809 struct bge_softc *sc = device_get_softc(dev);
1810 sc->bge_flags |= BGE_FLAG_NO_3LED;
1816 bge_attach(device_t dev)
1819 struct bge_softc *sc;
1822 uint8_t ether_addr[ETHER_ADDR_LEN];
1824 sc = device_get_softc(dev);
1826 callout_init(&sc->bge_stat_timer);
1827 lwkt_serialize_init(&sc->bge_jslot_serializer);
1829 #ifndef BURN_BRIDGES
1830 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1833 irq = pci_read_config(dev, PCIR_INTLINE, 4);
1834 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
1836 device_printf(dev, "chip is in D%d power mode "
1837 "-- setting to D0\n", pci_get_powerstate(dev));
1839 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1841 pci_write_config(dev, PCIR_INTLINE, irq, 4);
1842 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
1844 #endif /* !BURN_BRIDGE */
1847 * Map control/status registers.
1849 pci_enable_busmaster(dev);
1852 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1855 if (sc->bge_res == NULL) {
1856 device_printf(dev, "couldn't map memory\n");
1860 sc->bge_btag = rman_get_bustag(sc->bge_res);
1861 sc->bge_bhandle = rman_get_bushandle(sc->bge_res);
1863 /* Save various chip information */
1865 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
1866 BGE_PCIMISCCTL_ASICREV_SHIFT;
1867 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG)
1868 sc->bge_chipid = pci_read_config(dev, BGE_PCI_PRODID_ASICREV, 4);
1869 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid);
1870 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid);
1872 /* Save chipset family. */
1873 switch (sc->bge_asicrev) {
1874 case BGE_ASICREV_BCM5755:
1875 case BGE_ASICREV_BCM5761:
1876 case BGE_ASICREV_BCM5784:
1877 case BGE_ASICREV_BCM5785:
1878 case BGE_ASICREV_BCM5787:
1879 case BGE_ASICREV_BCM57780:
1880 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS |
1884 case BGE_ASICREV_BCM5700:
1885 case BGE_ASICREV_BCM5701:
1886 case BGE_ASICREV_BCM5703:
1887 case BGE_ASICREV_BCM5704:
1888 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO;
1891 case BGE_ASICREV_BCM5714_A0:
1892 case BGE_ASICREV_BCM5780:
1893 case BGE_ASICREV_BCM5714:
1894 sc->bge_flags |= BGE_FLAG_5714_FAMILY;
1897 case BGE_ASICREV_BCM5750:
1898 case BGE_ASICREV_BCM5752:
1899 case BGE_ASICREV_BCM5906:
1900 sc->bge_flags |= BGE_FLAG_575X_PLUS;
1903 case BGE_ASICREV_BCM5705:
1904 sc->bge_flags |= BGE_FLAG_5705_PLUS;
1908 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
1909 sc->bge_flags |= BGE_FLAG_NO_EEPROM;
1912 * Set various quirk flags.
1915 sc->bge_flags |= BGE_FLAG_ETH_WIRESPEED;
1916 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
1917 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
1918 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
1919 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
1920 sc->bge_asicrev == BGE_ASICREV_BCM5906)
1921 sc->bge_flags &= ~BGE_FLAG_ETH_WIRESPEED;
1923 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 ||
1924 sc->bge_chipid == BGE_CHIPID_BCM5701_B0)
1925 sc->bge_flags |= BGE_FLAG_CRC_BUG;
1927 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX ||
1928 sc->bge_chiprev == BGE_CHIPREV_5704_AX)
1929 sc->bge_flags |= BGE_FLAG_ADC_BUG;
1931 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
1932 sc->bge_flags |= BGE_FLAG_5704_A0_BUG;
1934 if (BGE_IS_5705_PLUS(sc)) {
1935 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 ||
1936 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1937 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1938 sc->bge_asicrev == BGE_ASICREV_BCM5787) {
1939 uint32_t product = pci_get_device(dev);
1941 if (product != PCI_PRODUCT_BROADCOM_BCM5722 &&
1942 product != PCI_PRODUCT_BROADCOM_BCM5756)
1943 sc->bge_flags |= BGE_FLAG_JITTER_BUG;
1944 if (product == PCI_PRODUCT_BROADCOM_BCM5755M)
1945 sc->bge_flags |= BGE_FLAG_ADJUST_TRIM;
1946 } else if (sc->bge_asicrev != BGE_ASICREV_BCM5906) {
1947 sc->bge_flags |= BGE_FLAG_BER_BUG;
1951 /* Allocate interrupt */
1954 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1955 RF_SHAREABLE | RF_ACTIVE);
1957 if (sc->bge_irq == NULL) {
1958 device_printf(dev, "couldn't map interrupt\n");
1964 * Check if this is a PCI-X or PCI Express device.
1966 if (BGE_IS_5705_PLUS(sc)) {
1967 if (pci_is_pcie(dev)) {
1968 sc->bge_flags |= BGE_FLAG_PCIE;
1969 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
1973 * Check if the device is in PCI-X Mode.
1974 * (This bit is not valid on PCI Express controllers.)
1976 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) &
1977 BGE_PCISTATE_PCI_BUSMODE) == 0) {
1978 sc->bge_flags |= BGE_FLAG_PCIX;
1979 sc->bge_pcixcap = pci_get_pcixcap_ptr(sc->bge_dev);
1983 device_printf(dev, "CHIP ID 0x%08x; "
1984 "ASIC REV 0x%02x; CHIP REV 0x%02x; %s\n",
1985 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev,
1986 (sc->bge_flags & BGE_FLAG_PCIX) ? "PCI-X"
1987 : ((sc->bge_flags & BGE_FLAG_PCIE) ?
1991 * All controllers that are not 5755 or higher have 4GB
1993 * Whenever an address crosses a multiple of the 4GB boundary
1994 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
1995 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
1996 * state machine will lockup and cause the device to hang.
1998 if (BGE_IS_5755_PLUS(sc) == 0)
1999 sc->bge_flags |= BGE_FLAG_BOUNDARY_4G;
2002 * The 40bit DMA bug applies to the 5714/5715 controllers and is
2003 * not actually a MAC controller bug but an issue with the embedded
2004 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround.
2006 if (BGE_IS_5714_FAMILY(sc) && (sc->bge_flags & BGE_FLAG_PCIX))
2007 sc->bge_flags |= BGE_FLAG_MAXADDR_40BIT;
2009 ifp = &sc->arpcom.ac_if;
2010 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2012 /* Try to reset the chip. */
2015 if (bge_chipinit(sc)) {
2016 device_printf(dev, "chip initialization failed\n");
2022 * Get station address
2024 error = bge_get_eaddr(sc, ether_addr);
2026 device_printf(dev, "failed to read station address\n");
2030 /* 5705/5750 limits RX return ring to 512 entries. */
2031 if (BGE_IS_5705_PLUS(sc))
2032 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
2034 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
2036 error = bge_dma_alloc(sc);
2040 /* Set default tuneable values. */
2041 sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
2042 sc->bge_rx_coal_ticks = bge_rx_coal_ticks;
2043 sc->bge_tx_coal_ticks = bge_tx_coal_ticks;
2044 sc->bge_rx_max_coal_bds = bge_rx_max_coal_bds;
2045 sc->bge_tx_max_coal_bds = bge_tx_max_coal_bds;
2047 /* Set up ifnet structure */
2049 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2050 ifp->if_ioctl = bge_ioctl;
2051 ifp->if_start = bge_start;
2052 #ifdef DEVICE_POLLING
2053 ifp->if_poll = bge_poll;
2055 ifp->if_watchdog = bge_watchdog;
2056 ifp->if_init = bge_init;
2057 ifp->if_mtu = ETHERMTU;
2058 ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2059 ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
2060 ifq_set_ready(&ifp->if_snd);
2063 * 5700 B0 chips do not support checksumming correctly due
2066 if (sc->bge_chipid != BGE_CHIPID_BCM5700_B0) {
2067 ifp->if_capabilities |= IFCAP_HWCSUM;
2068 ifp->if_hwassist = BGE_CSUM_FEATURES;
2070 ifp->if_capenable = ifp->if_capabilities;
2073 * Figure out what sort of media we have by checking the
2074 * hardware config word in the first 32k of NIC internal memory,
2075 * or fall back to examining the EEPROM if necessary.
2076 * Note: on some BCM5700 cards, this value appears to be unset.
2077 * If that's the case, we have to rely on identifying the NIC
2078 * by its PCI subsystem ID, as we do below for the SysKonnect
2081 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER)
2082 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
2084 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
2086 device_printf(dev, "failed to read EEPROM\n");
2090 hwcfg = ntohl(hwcfg);
2093 if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER)
2094 sc->bge_flags |= BGE_FLAG_TBI;
2096 /* The SysKonnect SK-9D41 is a 1000baseSX card. */
2097 if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41)
2098 sc->bge_flags |= BGE_FLAG_TBI;
2100 if (sc->bge_flags & BGE_FLAG_TBI) {
2101 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK,
2102 bge_ifmedia_upd, bge_ifmedia_sts);
2103 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2104 ifmedia_add(&sc->bge_ifmedia,
2105 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2106 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2107 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
2108 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
2111 * Do transceiver setup.
2113 if (mii_phy_probe(dev, &sc->bge_miibus,
2114 bge_ifmedia_upd, bge_ifmedia_sts)) {
2115 device_printf(dev, "MII without any PHY!\n");
2122 * When using the BCM5701 in PCI-X mode, data corruption has
2123 * been observed in the first few bytes of some received packets.
2124 * Aligning the packet buffer in memory eliminates the corruption.
2125 * Unfortunately, this misaligns the packet payloads. On platforms
2126 * which do not support unaligned accesses, we will realign the
2127 * payloads by copying the received packets.
2129 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
2130 (sc->bge_flags & BGE_FLAG_PCIX))
2131 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG;
2133 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
2134 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
2135 sc->bge_link_upd = bge_bcm5700_link_upd;
2136 sc->bge_link_chg = BGE_MACSTAT_MI_INTERRUPT;
2137 } else if (sc->bge_flags & BGE_FLAG_TBI) {
2138 sc->bge_link_upd = bge_tbi_link_upd;
2139 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2141 sc->bge_link_upd = bge_copper_link_upd;
2142 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2146 * Create sysctl nodes.
2148 sysctl_ctx_init(&sc->bge_sysctl_ctx);
2149 sc->bge_sysctl_tree = SYSCTL_ADD_NODE(&sc->bge_sysctl_ctx,
2150 SYSCTL_STATIC_CHILDREN(_hw),
2152 device_get_nameunit(dev),
2154 if (sc->bge_sysctl_tree == NULL) {
2155 device_printf(dev, "can't add sysctl node\n");
2160 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2161 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2162 OID_AUTO, "rx_coal_ticks",
2163 CTLTYPE_INT | CTLFLAG_RW,
2164 sc, 0, bge_sysctl_rx_coal_ticks, "I",
2165 "Receive coalescing ticks (usec).");
2166 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2167 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2168 OID_AUTO, "tx_coal_ticks",
2169 CTLTYPE_INT | CTLFLAG_RW,
2170 sc, 0, bge_sysctl_tx_coal_ticks, "I",
2171 "Transmit coalescing ticks (usec).");
2172 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2173 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2174 OID_AUTO, "rx_max_coal_bds",
2175 CTLTYPE_INT | CTLFLAG_RW,
2176 sc, 0, bge_sysctl_rx_max_coal_bds, "I",
2177 "Receive max coalesced BD count.");
2178 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2179 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2180 OID_AUTO, "tx_max_coal_bds",
2181 CTLTYPE_INT | CTLFLAG_RW,
2182 sc, 0, bge_sysctl_tx_max_coal_bds, "I",
2183 "Transmit max coalesced BD count.");
2185 if (sc->bge_flags & BGE_FLAG_PCIE) {
2187 * A common design characteristic for many Broadcom
2188 * client controllers is that they only support a
2189 * single outstanding DMA read operation on the PCIe
2190 * bus. This means that it will take twice as long to
2191 * fetch a TX frame that is split into header and
2192 * payload buffers as it does to fetch a single,
2193 * contiguous TX frame (2 reads vs. 1 read). For these
2194 * controllers, coalescing buffers to reduce the number
2195 * of memory reads is effective way to get maximum
2196 * performance(about 940Mbps). Without collapsing TX
2197 * buffers the maximum TCP bulk transfer performance
2198 * is about 850Mbps. However forcing coalescing mbufs
2199 * consumes a lot of CPU cycles, so leave it off by
2202 SYSCTL_ADD_INT(&sc->bge_sysctl_ctx,
2203 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2204 OID_AUTO, "force_defrag", CTLFLAG_RW,
2205 &sc->bge_force_defrag, 0,
2206 "Force defragment on TX path");
2210 * Call MI attach routine.
2212 ether_ifattach(ifp, ether_addr, NULL);
2214 error = bus_setup_intr(dev, sc->bge_irq, INTR_MPSAFE,
2215 bge_intr, sc, &sc->bge_intrhand,
2216 ifp->if_serializer);
2218 ether_ifdetach(ifp);
2219 device_printf(dev, "couldn't set up irq\n");
2223 ifp->if_cpuid = rman_get_cpuid(sc->bge_irq);
2224 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
2233 bge_detach(device_t dev)
2235 struct bge_softc *sc = device_get_softc(dev);
2237 if (device_is_attached(dev)) {
2238 struct ifnet *ifp = &sc->arpcom.ac_if;
2240 lwkt_serialize_enter(ifp->if_serializer);
2243 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand);
2244 lwkt_serialize_exit(ifp->if_serializer);
2246 ether_ifdetach(ifp);
2249 if (sc->bge_flags & BGE_FLAG_TBI)
2250 ifmedia_removeall(&sc->bge_ifmedia);
2252 device_delete_child(dev, sc->bge_miibus);
2253 bus_generic_detach(dev);
2255 if (sc->bge_irq != NULL)
2256 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq);
2258 if (sc->bge_res != NULL)
2259 bus_release_resource(dev, SYS_RES_MEMORY,
2260 BGE_PCI_BAR0, sc->bge_res);
2262 if (sc->bge_sysctl_tree != NULL)
2263 sysctl_ctx_free(&sc->bge_sysctl_ctx);
2271 bge_reset(struct bge_softc *sc)
2274 uint32_t cachesize, command, pcistate, reset;
2275 void (*write_op)(struct bge_softc *, uint32_t, uint32_t);
2280 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) &&
2281 sc->bge_asicrev != BGE_ASICREV_BCM5906) {
2282 if (sc->bge_flags & BGE_FLAG_PCIE)
2283 write_op = bge_writemem_direct;
2285 write_op = bge_writemem_ind;
2287 write_op = bge_writereg_ind;
2290 /* Save some important PCI state. */
2291 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2292 command = pci_read_config(dev, BGE_PCI_CMD, 4);
2293 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2295 pci_write_config(dev, BGE_PCI_MISC_CTL,
2296 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2297 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2299 /* Disable fastboot on controllers that support it. */
2300 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 ||
2301 BGE_IS_5755_PLUS(sc)) {
2303 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2304 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2308 * Write the magic number to SRAM at offset 0xB50.
2309 * When firmware finishes its initialization it will
2310 * write ~BGE_MAGIC_NUMBER to the same location.
2312 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2314 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2316 /* XXX: Broadcom Linux driver. */
2317 if (sc->bge_flags & BGE_FLAG_PCIE) {
2318 if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */
2319 CSR_WRITE_4(sc, 0x7e2c, 0x20);
2320 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2321 /* Prevent PCIE link training during global reset */
2322 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2328 * Set GPHY Power Down Override to leave GPHY
2329 * powered up in D0 uninitialized.
2331 if (BGE_IS_5705_PLUS(sc))
2332 reset |= 0x04000000;
2334 /* Issue global reset */
2335 write_op(sc, BGE_MISC_CFG, reset);
2337 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2338 uint32_t status, ctrl;
2340 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2341 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2342 status | BGE_VCPU_STATUS_DRV_RESET);
2343 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2344 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2345 ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2350 /* XXX: Broadcom Linux driver. */
2351 if (sc->bge_flags & BGE_FLAG_PCIE) {
2352 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
2355 DELAY(500000); /* wait for link training to complete */
2356 v = pci_read_config(dev, 0xc4, 4);
2357 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2360 * Set PCIE max payload size to 128 bytes and
2361 * clear error status.
2363 pci_write_config(dev, 0xd8, 0xf5000, 4);
2366 /* Reset some of the PCI state that got zapped by reset */
2367 pci_write_config(dev, BGE_PCI_MISC_CTL,
2368 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2369 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2370 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2371 pci_write_config(dev, BGE_PCI_CMD, command, 4);
2372 write_op(sc, BGE_MISC_CFG, (65 << 1));
2375 * Disable PCI-X relaxed ordering to ensure status block update
2376 * comes first then packet buffer DMA. Otherwise driver may
2377 * read stale status block.
2379 if (sc->bge_flags & BGE_FLAG_PCIX) {
2382 devctl = pci_read_config(dev,
2383 sc->bge_pcixcap + PCIXR_COMMAND, 2);
2384 devctl &= ~PCIXM_COMMAND_ERO;
2385 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
2386 devctl &= ~PCIXM_COMMAND_MAX_READ;
2387 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2388 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
2389 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS |
2390 PCIXM_COMMAND_MAX_READ);
2391 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2393 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND,
2397 /* Enable memory arbiter. */
2398 if (BGE_IS_5714_FAMILY(sc)) {
2401 val = CSR_READ_4(sc, BGE_MARB_MODE);
2402 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
2404 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2407 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2408 for (i = 0; i < BGE_TIMEOUT; i++) {
2409 val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2410 if (val & BGE_VCPU_STATUS_INIT_DONE)
2414 if (i == BGE_TIMEOUT) {
2415 if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2420 * Poll until we see the 1's complement of the magic number.
2421 * This indicates that the firmware initialization
2424 for (i = 0; i < BGE_FIRMWARE_TIMEOUT; i++) {
2425 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2426 if (val == ~BGE_MAGIC_NUMBER)
2430 if (i == BGE_FIRMWARE_TIMEOUT) {
2431 if_printf(&sc->arpcom.ac_if, "firmware handshake "
2432 "timed out, found 0x%08x\n", val);
2438 * XXX Wait for the value of the PCISTATE register to
2439 * return to its original pre-reset state. This is a
2440 * fairly good indicator of reset completion. If we don't
2441 * wait for the reset to fully complete, trying to read
2442 * from the device's non-PCI registers may yield garbage
2445 for (i = 0; i < BGE_TIMEOUT; i++) {
2446 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2451 if (sc->bge_flags & BGE_FLAG_PCIE) {
2452 reset = bge_readmem_ind(sc, 0x7c00);
2453 bge_writemem_ind(sc, 0x7c00, reset | (1 << 25));
2456 /* Fix up byte swapping */
2457 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS |
2458 BGE_MODECTL_BYTESWAP_DATA);
2460 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2463 * The 5704 in TBI mode apparently needs some special
2464 * adjustment to insure the SERDES drive level is set
2467 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 &&
2468 (sc->bge_flags & BGE_FLAG_TBI)) {
2471 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2472 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2473 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2476 /* XXX: Broadcom Linux driver. */
2477 if ((sc->bge_flags & BGE_FLAG_PCIE) &&
2478 sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2481 v = CSR_READ_4(sc, 0x7c00);
2482 CSR_WRITE_4(sc, 0x7c00, v | (1<<25));
2489 * Frame reception handling. This is called if there's a frame
2490 * on the receive return list.
2492 * Note: we have to be able to handle two possibilities here:
2493 * 1) the frame is from the jumbo recieve ring
2494 * 2) the frame is from the standard receive ring
2498 bge_rxeof(struct bge_softc *sc)
2501 int stdcnt = 0, jumbocnt = 0;
2503 if (sc->bge_rx_saved_considx ==
2504 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx)
2507 ifp = &sc->arpcom.ac_if;
2509 while (sc->bge_rx_saved_considx !=
2510 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) {
2511 struct bge_rx_bd *cur_rx;
2513 struct mbuf *m = NULL;
2514 uint16_t vlan_tag = 0;
2518 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx];
2520 rxidx = cur_rx->bge_idx;
2521 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
2524 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2526 vlan_tag = cur_rx->bge_vlan_tag;
2529 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2530 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
2533 if (rxidx != sc->bge_jumbo) {
2535 if_printf(ifp, "sw jumbo index(%d) "
2536 "and hw jumbo index(%d) mismatch, drop!\n",
2537 sc->bge_jumbo, rxidx);
2538 bge_setup_rxdesc_jumbo(sc, rxidx);
2542 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx].bge_mbuf;
2543 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2545 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2548 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 0)) {
2550 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2554 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
2557 if (rxidx != sc->bge_std) {
2559 if_printf(ifp, "sw std index(%d) "
2560 "and hw std index(%d) mismatch, drop!\n",
2561 sc->bge_std, rxidx);
2562 bge_setup_rxdesc_std(sc, rxidx);
2566 m = sc->bge_cdata.bge_rx_std_chain[rxidx].bge_mbuf;
2567 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2569 bge_setup_rxdesc_std(sc, sc->bge_std);
2572 if (bge_newbuf_std(sc, sc->bge_std, 0)) {
2574 bge_setup_rxdesc_std(sc, sc->bge_std);
2580 #if !defined(__i386__) && !defined(__x86_64__)
2582 * The x86 allows unaligned accesses, but for other
2583 * platforms we must make sure the payload is aligned.
2585 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) {
2586 bcopy(m->m_data, m->m_data + ETHER_ALIGN,
2588 m->m_data += ETHER_ALIGN;
2591 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2592 m->m_pkthdr.rcvif = ifp;
2594 if (ifp->if_capenable & IFCAP_RXCSUM) {
2595 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2596 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2597 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
2598 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2600 if ((cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) &&
2601 m->m_pkthdr.len >= BGE_MIN_FRAME) {
2602 m->m_pkthdr.csum_data =
2603 cur_rx->bge_tcp_udp_csum;
2604 m->m_pkthdr.csum_flags |=
2605 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
2610 * If we received a packet with a vlan tag, pass it
2611 * to vlan_input() instead of ether_input().
2614 m->m_flags |= M_VLANTAG;
2615 m->m_pkthdr.ether_vlantag = vlan_tag;
2616 have_tag = vlan_tag = 0;
2618 ifp->if_input(ifp, m);
2621 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
2623 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
2625 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
2629 bge_txeof(struct bge_softc *sc)
2631 struct bge_tx_bd *cur_tx = NULL;
2634 if (sc->bge_tx_saved_considx ==
2635 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx)
2638 ifp = &sc->arpcom.ac_if;
2641 * Go through our tx ring and free mbufs for those
2642 * frames that have been sent.
2644 while (sc->bge_tx_saved_considx !=
2645 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) {
2648 idx = sc->bge_tx_saved_considx;
2649 cur_tx = &sc->bge_ldata.bge_tx_ring[idx];
2650 if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
2652 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) {
2653 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
2654 sc->bge_cdata.bge_tx_dmamap[idx]);
2655 m_freem(sc->bge_cdata.bge_tx_chain[idx]);
2656 sc->bge_cdata.bge_tx_chain[idx] = NULL;
2659 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
2663 if (cur_tx != NULL &&
2664 (BGE_TX_RING_CNT - sc->bge_txcnt) >=
2665 (BGE_NSEG_RSVD + BGE_NSEG_SPARE))
2666 ifp->if_flags &= ~IFF_OACTIVE;
2668 if (sc->bge_txcnt == 0)
2671 if (!ifq_is_empty(&ifp->if_snd))
2675 #ifdef DEVICE_POLLING
2678 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
2680 struct bge_softc *sc = ifp->if_softc;
2685 bge_disable_intr(sc);
2687 case POLL_DEREGISTER:
2688 bge_enable_intr(sc);
2690 case POLL_AND_CHECK_STATUS:
2692 * Process link state changes.
2694 status = CSR_READ_4(sc, BGE_MAC_STS);
2695 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2696 sc->bge_link_evt = 0;
2697 sc->bge_link_upd(sc, status);
2701 if (ifp->if_flags & IFF_RUNNING) {
2714 struct bge_softc *sc = xsc;
2715 struct ifnet *ifp = &sc->arpcom.ac_if;
2721 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't
2722 * disable interrupts by writing nonzero like we used to, since with
2723 * our current organization this just gives complications and
2724 * pessimizations for re-enabling interrupts. We used to have races
2725 * instead of the necessary complications. Disabling interrupts
2726 * would just reduce the chance of a status update while we are
2727 * running (by switching to the interrupt-mode coalescence
2728 * parameters), but this chance is already very low so it is more
2729 * efficient to get another interrupt than prevent it.
2731 * We do the ack first to ensure another interrupt if there is a
2732 * status update after the ack. We don't check for the status
2733 * changing later because it is more efficient to get another
2734 * interrupt than prevent it, not quite as above (not checking is
2735 * a smaller optimization than not toggling the interrupt enable,
2736 * since checking doesn't involve PCI accesses and toggling require
2737 * the status check). So toggling would probably be a pessimization
2738 * even with MSI. It would only be needed for using a task queue.
2740 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
2743 * Process link state changes.
2745 status = CSR_READ_4(sc, BGE_MAC_STS);
2746 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2747 sc->bge_link_evt = 0;
2748 sc->bge_link_upd(sc, status);
2751 if (ifp->if_flags & IFF_RUNNING) {
2752 /* Check RX return ring producer/consumer */
2755 /* Check TX ring producer/consumer */
2759 if (sc->bge_coal_chg)
2760 bge_coal_change(sc);
2766 struct bge_softc *sc = xsc;
2767 struct ifnet *ifp = &sc->arpcom.ac_if;
2769 lwkt_serialize_enter(ifp->if_serializer);
2771 if (BGE_IS_5705_PLUS(sc))
2772 bge_stats_update_regs(sc);
2774 bge_stats_update(sc);
2776 if (sc->bge_flags & BGE_FLAG_TBI) {
2778 * Since in TBI mode auto-polling can't be used we should poll
2779 * link status manually. Here we register pending link event
2780 * and trigger interrupt.
2783 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
2784 } else if (!sc->bge_link) {
2785 mii_tick(device_get_softc(sc->bge_miibus));
2788 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
2790 lwkt_serialize_exit(ifp->if_serializer);
2794 bge_stats_update_regs(struct bge_softc *sc)
2796 struct ifnet *ifp = &sc->arpcom.ac_if;
2797 struct bge_mac_stats_regs stats;
2801 s = (uint32_t *)&stats;
2802 for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
2803 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
2807 ifp->if_collisions +=
2808 (stats.dot3StatsSingleCollisionFrames +
2809 stats.dot3StatsMultipleCollisionFrames +
2810 stats.dot3StatsExcessiveCollisions +
2811 stats.dot3StatsLateCollisions) -
2816 bge_stats_update(struct bge_softc *sc)
2818 struct ifnet *ifp = &sc->arpcom.ac_if;
2821 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
2823 #define READ_STAT(sc, stats, stat) \
2824 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
2826 ifp->if_collisions +=
2827 (READ_STAT(sc, stats,
2828 txstats.dot3StatsSingleCollisionFrames.bge_addr_lo) +
2829 READ_STAT(sc, stats,
2830 txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo) +
2831 READ_STAT(sc, stats,
2832 txstats.dot3StatsExcessiveCollisions.bge_addr_lo) +
2833 READ_STAT(sc, stats,
2834 txstats.dot3StatsLateCollisions.bge_addr_lo)) -
2840 ifp->if_collisions +=
2841 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames +
2842 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames +
2843 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions +
2844 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) -
2850 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
2851 * pointers to descriptors.
2854 bge_encap(struct bge_softc *sc, struct mbuf **m_head0, uint32_t *txidx)
2856 struct bge_tx_bd *d = NULL;
2857 uint16_t csum_flags = 0;
2858 bus_dma_segment_t segs[BGE_NSEG_NEW];
2860 int error, maxsegs, nsegs, idx, i;
2861 struct mbuf *m_head = *m_head0;
2863 if (m_head->m_pkthdr.csum_flags) {
2864 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2865 csum_flags |= BGE_TXBDFLAG_IP_CSUM;
2866 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
2867 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
2868 if (m_head->m_flags & M_LASTFRAG)
2869 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
2870 else if (m_head->m_flags & M_FRAG)
2871 csum_flags |= BGE_TXBDFLAG_IP_FRAG;
2875 map = sc->bge_cdata.bge_tx_dmamap[idx];
2877 maxsegs = (BGE_TX_RING_CNT - sc->bge_txcnt) - BGE_NSEG_RSVD;
2878 KASSERT(maxsegs >= BGE_NSEG_SPARE,
2879 ("not enough segments %d", maxsegs));
2881 if (maxsegs > BGE_NSEG_NEW)
2882 maxsegs = BGE_NSEG_NEW;
2885 * Pad outbound frame to BGE_MIN_FRAME for an unusual reason.
2886 * The bge hardware will pad out Tx runts to BGE_MIN_FRAME,
2887 * but when such padded frames employ the bge IP/TCP checksum
2888 * offload, the hardware checksum assist gives incorrect results
2889 * (possibly from incorporating its own padding into the UDP/TCP
2890 * checksum; who knows). If we pad such runts with zeros, the
2891 * onboard checksum comes out correct.
2893 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
2894 m_head->m_pkthdr.len < BGE_MIN_FRAME) {
2895 error = m_devpad(m_head, BGE_MIN_FRAME);
2900 if (sc->bge_force_defrag && (sc->bge_flags & BGE_FLAG_PCIE) &&
2901 m_head->m_next != NULL) {
2905 * Forcefully defragment mbuf chain to overcome hardware
2906 * limitation which only support a single outstanding
2907 * DMA read operation. If it fails, keep moving on using
2908 * the original mbuf chain.
2910 m_new = m_defrag(m_head, MB_DONTWAIT);
2912 *m_head0 = m_head = m_new;
2915 error = bus_dmamap_load_mbuf_defrag(sc->bge_cdata.bge_tx_mtag, map,
2916 m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
2921 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE);
2923 for (i = 0; ; i++) {
2924 d = &sc->bge_ldata.bge_tx_ring[idx];
2926 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
2927 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
2928 d->bge_len = segs[i].ds_len;
2929 d->bge_flags = csum_flags;
2933 BGE_INC(idx, BGE_TX_RING_CNT);
2935 /* Mark the last segment as end of packet... */
2936 d->bge_flags |= BGE_TXBDFLAG_END;
2938 /* Set vlan tag to the first segment of the packet. */
2939 d = &sc->bge_ldata.bge_tx_ring[*txidx];
2940 if (m_head->m_flags & M_VLANTAG) {
2941 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
2942 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
2944 d->bge_vlan_tag = 0;
2948 * Insure that the map for this transmission is placed at
2949 * the array index of the last descriptor in this chain.
2951 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx];
2952 sc->bge_cdata.bge_tx_dmamap[idx] = map;
2953 sc->bge_cdata.bge_tx_chain[idx] = m_head;
2954 sc->bge_txcnt += nsegs;
2956 BGE_INC(idx, BGE_TX_RING_CNT);
2967 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2968 * to the mbuf data regions directly in the transmit descriptors.
2971 bge_start(struct ifnet *ifp)
2973 struct bge_softc *sc = ifp->if_softc;
2974 struct mbuf *m_head = NULL;
2978 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
2981 prodidx = sc->bge_tx_prodidx;
2984 while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
2985 m_head = ifq_dequeue(&ifp->if_snd, NULL);
2991 * The code inside the if() block is never reached since we
2992 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
2993 * requests to checksum TCP/UDP in a fragmented packet.
2996 * safety overkill. If this is a fragmented packet chain
2997 * with delayed TCP/UDP checksums, then only encapsulate
2998 * it if we have enough descriptors to handle the entire
3000 * (paranoia -- may not actually be needed)
3002 if ((m_head->m_flags & M_FIRSTFRAG) &&
3003 (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
3004 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3005 m_head->m_pkthdr.csum_data + BGE_NSEG_RSVD) {
3006 ifp->if_flags |= IFF_OACTIVE;
3007 ifq_prepend(&ifp->if_snd, m_head);
3013 * Sanity check: avoid coming within BGE_NSEG_RSVD
3014 * descriptors of the end of the ring. Also make
3015 * sure there are BGE_NSEG_SPARE descriptors for
3016 * jumbo buffers' defragmentation.
3018 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3019 (BGE_NSEG_RSVD + BGE_NSEG_SPARE)) {
3020 ifp->if_flags |= IFF_OACTIVE;
3021 ifq_prepend(&ifp->if_snd, m_head);
3026 * Pack the data into the transmit ring. If we
3027 * don't have room, set the OACTIVE flag and wait
3028 * for the NIC to drain the ring.
3030 if (bge_encap(sc, &m_head, &prodidx)) {
3031 ifp->if_flags |= IFF_OACTIVE;
3037 ETHER_BPF_MTAP(ifp, m_head);
3044 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3045 /* 5700 b2 errata */
3046 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
3047 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3049 sc->bge_tx_prodidx = prodidx;
3052 * Set a timeout in case the chip goes out to lunch.
3060 struct bge_softc *sc = xsc;
3061 struct ifnet *ifp = &sc->arpcom.ac_if;
3064 ASSERT_SERIALIZED(ifp->if_serializer);
3066 if (ifp->if_flags & IFF_RUNNING)
3069 /* Cancel pending I/O and flush buffers. */
3075 * Init the various state machines, ring
3076 * control blocks and firmware.
3078 if (bge_blockinit(sc)) {
3079 if_printf(ifp, "initialization failure\n");
3085 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
3086 ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
3088 /* Load our MAC address. */
3089 m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
3090 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
3091 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
3093 /* Enable or disable promiscuous mode as needed. */
3096 /* Program multicast filter. */
3100 if (bge_init_rx_ring_std(sc)) {
3101 if_printf(ifp, "RX ring initialization failed\n");
3107 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
3108 * memory to insure that the chip has in fact read the first
3109 * entry of the ring.
3111 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
3113 for (i = 0; i < 10; i++) {
3115 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
3116 if (v == (MCLBYTES - ETHER_ALIGN))
3120 if_printf(ifp, "5705 A0 chip failed to load RX ring\n");
3123 /* Init jumbo RX ring. */
3124 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3125 if (bge_init_rx_ring_jumbo(sc)) {
3126 if_printf(ifp, "Jumbo RX ring initialization failed\n");
3132 /* Init our RX return ring index */
3133 sc->bge_rx_saved_considx = 0;
3136 bge_init_tx_ring(sc);
3138 /* Turn on transmitter */
3139 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE);
3141 /* Turn on receiver */
3142 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3144 /* Tell firmware we're alive. */
3145 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3147 /* Enable host interrupts if polling(4) is not enabled. */
3148 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA);
3149 #ifdef DEVICE_POLLING
3150 if (ifp->if_flags & IFF_POLLING)
3151 bge_disable_intr(sc);
3154 bge_enable_intr(sc);
3156 bge_ifmedia_upd(ifp);
3158 ifp->if_flags |= IFF_RUNNING;
3159 ifp->if_flags &= ~IFF_OACTIVE;
3161 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3165 * Set media options.
3168 bge_ifmedia_upd(struct ifnet *ifp)
3170 struct bge_softc *sc = ifp->if_softc;
3172 /* If this is a 1000baseX NIC, enable the TBI port. */
3173 if (sc->bge_flags & BGE_FLAG_TBI) {
3174 struct ifmedia *ifm = &sc->bge_ifmedia;
3176 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3179 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3182 * The BCM5704 ASIC appears to have a special
3183 * mechanism for programming the autoneg
3184 * advertisement registers in TBI mode.
3186 if (!bge_fake_autoneg &&
3187 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3190 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
3191 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
3192 sgdig |= BGE_SGDIGCFG_AUTO |
3193 BGE_SGDIGCFG_PAUSE_CAP |
3194 BGE_SGDIGCFG_ASYM_PAUSE;
3195 CSR_WRITE_4(sc, BGE_SGDIG_CFG,
3196 sgdig | BGE_SGDIGCFG_SEND);
3198 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
3202 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3203 BGE_CLRBIT(sc, BGE_MAC_MODE,
3204 BGE_MACMODE_HALF_DUPLEX);
3206 BGE_SETBIT(sc, BGE_MAC_MODE,
3207 BGE_MACMODE_HALF_DUPLEX);
3214 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3218 if (mii->mii_instance) {
3219 struct mii_softc *miisc;
3221 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3222 mii_phy_reset(miisc);
3230 * Report current media status.
3233 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3235 struct bge_softc *sc = ifp->if_softc;
3237 if (sc->bge_flags & BGE_FLAG_TBI) {
3238 ifmr->ifm_status = IFM_AVALID;
3239 ifmr->ifm_active = IFM_ETHER;
3240 if (CSR_READ_4(sc, BGE_MAC_STS) &
3241 BGE_MACSTAT_TBI_PCS_SYNCHED) {
3242 ifmr->ifm_status |= IFM_ACTIVE;
3244 ifmr->ifm_active |= IFM_NONE;
3248 ifmr->ifm_active |= IFM_1000_SX;
3249 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3250 ifmr->ifm_active |= IFM_HDX;
3252 ifmr->ifm_active |= IFM_FDX;
3254 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3257 ifmr->ifm_active = mii->mii_media_active;
3258 ifmr->ifm_status = mii->mii_media_status;
3263 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3265 struct bge_softc *sc = ifp->if_softc;
3266 struct ifreq *ifr = (struct ifreq *)data;
3267 int mask, error = 0;
3269 ASSERT_SERIALIZED(ifp->if_serializer);
3273 if ((!BGE_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3274 (BGE_IS_JUMBO_CAPABLE(sc) &&
3275 ifr->ifr_mtu > BGE_JUMBO_MTU)) {
3277 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3278 ifp->if_mtu = ifr->ifr_mtu;
3279 ifp->if_flags &= ~IFF_RUNNING;
3284 if (ifp->if_flags & IFF_UP) {
3285 if (ifp->if_flags & IFF_RUNNING) {
3286 mask = ifp->if_flags ^ sc->bge_if_flags;
3289 * If only the state of the PROMISC flag
3290 * changed, then just use the 'set promisc
3291 * mode' command instead of reinitializing
3292 * the entire NIC. Doing a full re-init
3293 * means reloading the firmware and waiting
3294 * for it to start up, which may take a
3295 * second or two. Similarly for ALLMULTI.
3297 if (mask & IFF_PROMISC)
3299 if (mask & IFF_ALLMULTI)
3305 if (ifp->if_flags & IFF_RUNNING)
3308 sc->bge_if_flags = ifp->if_flags;
3312 if (ifp->if_flags & IFF_RUNNING)
3317 if (sc->bge_flags & BGE_FLAG_TBI) {
3318 error = ifmedia_ioctl(ifp, ifr,
3319 &sc->bge_ifmedia, command);
3321 struct mii_data *mii;
3323 mii = device_get_softc(sc->bge_miibus);
3324 error = ifmedia_ioctl(ifp, ifr,
3325 &mii->mii_media, command);
3329 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3330 if (mask & IFCAP_HWCSUM) {
3331 ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3332 if (IFCAP_HWCSUM & ifp->if_capenable)
3333 ifp->if_hwassist = BGE_CSUM_FEATURES;
3335 ifp->if_hwassist = 0;
3339 error = ether_ioctl(ifp, command, data);
3346 bge_watchdog(struct ifnet *ifp)
3348 struct bge_softc *sc = ifp->if_softc;
3350 if_printf(ifp, "watchdog timeout -- resetting\n");
3352 ifp->if_flags &= ~IFF_RUNNING;
3357 if (!ifq_is_empty(&ifp->if_snd))
3362 * Stop the adapter and free any mbufs allocated to the
3366 bge_stop(struct bge_softc *sc)
3368 struct ifnet *ifp = &sc->arpcom.ac_if;
3370 ASSERT_SERIALIZED(ifp->if_serializer);
3372 callout_stop(&sc->bge_stat_timer);
3375 * Disable all of the receiver blocks
3377 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3378 BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3379 BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3380 if (!BGE_IS_5705_PLUS(sc))
3381 BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
3382 BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3383 BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3384 BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3387 * Disable all of the transmit blocks
3389 BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3390 BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3391 BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3392 BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3393 BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3394 if (!BGE_IS_5705_PLUS(sc))
3395 BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
3396 BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3399 * Shut down all of the memory managers and related
3402 BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3403 BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3404 if (!BGE_IS_5705_PLUS(sc))
3405 BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
3406 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3407 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3408 if (!BGE_IS_5705_PLUS(sc)) {
3409 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
3410 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
3413 /* Disable host interrupts. */
3414 bge_disable_intr(sc);
3417 * Tell firmware we're shutting down.
3419 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3421 /* Free the RX lists. */
3422 bge_free_rx_ring_std(sc);
3424 /* Free jumbo RX list. */
3425 if (BGE_IS_JUMBO_CAPABLE(sc))
3426 bge_free_rx_ring_jumbo(sc);
3428 /* Free TX buffers. */
3429 bge_free_tx_ring(sc);
3432 sc->bge_coal_chg = 0;
3434 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
3436 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3441 * Stop all chip I/O so that the kernel's probe routines don't
3442 * get confused by errant DMAs when rebooting.
3445 bge_shutdown(device_t dev)
3447 struct bge_softc *sc = device_get_softc(dev);
3448 struct ifnet *ifp = &sc->arpcom.ac_if;
3450 lwkt_serialize_enter(ifp->if_serializer);
3453 lwkt_serialize_exit(ifp->if_serializer);
3457 bge_suspend(device_t dev)
3459 struct bge_softc *sc = device_get_softc(dev);
3460 struct ifnet *ifp = &sc->arpcom.ac_if;
3462 lwkt_serialize_enter(ifp->if_serializer);
3464 lwkt_serialize_exit(ifp->if_serializer);
3470 bge_resume(device_t dev)
3472 struct bge_softc *sc = device_get_softc(dev);
3473 struct ifnet *ifp = &sc->arpcom.ac_if;
3475 lwkt_serialize_enter(ifp->if_serializer);
3477 if (ifp->if_flags & IFF_UP) {
3480 if (!ifq_is_empty(&ifp->if_snd))
3484 lwkt_serialize_exit(ifp->if_serializer);
3490 bge_setpromisc(struct bge_softc *sc)
3492 struct ifnet *ifp = &sc->arpcom.ac_if;
3494 if (ifp->if_flags & IFF_PROMISC)
3495 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3497 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3501 bge_dma_free(struct bge_softc *sc)
3505 /* Destroy RX mbuf DMA stuffs. */
3506 if (sc->bge_cdata.bge_rx_mtag != NULL) {
3507 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3508 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3509 sc->bge_cdata.bge_rx_std_dmamap[i]);
3511 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3512 sc->bge_cdata.bge_rx_tmpmap);
3513 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3516 /* Destroy TX mbuf DMA stuffs. */
3517 if (sc->bge_cdata.bge_tx_mtag != NULL) {
3518 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3519 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3520 sc->bge_cdata.bge_tx_dmamap[i]);
3522 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3525 /* Destroy standard RX ring */
3526 bge_dma_block_free(sc->bge_cdata.bge_rx_std_ring_tag,
3527 sc->bge_cdata.bge_rx_std_ring_map,
3528 sc->bge_ldata.bge_rx_std_ring);
3530 if (BGE_IS_JUMBO_CAPABLE(sc))
3531 bge_free_jumbo_mem(sc);
3533 /* Destroy RX return ring */
3534 bge_dma_block_free(sc->bge_cdata.bge_rx_return_ring_tag,
3535 sc->bge_cdata.bge_rx_return_ring_map,
3536 sc->bge_ldata.bge_rx_return_ring);
3538 /* Destroy TX ring */
3539 bge_dma_block_free(sc->bge_cdata.bge_tx_ring_tag,
3540 sc->bge_cdata.bge_tx_ring_map,
3541 sc->bge_ldata.bge_tx_ring);
3543 /* Destroy status block */
3544 bge_dma_block_free(sc->bge_cdata.bge_status_tag,
3545 sc->bge_cdata.bge_status_map,
3546 sc->bge_ldata.bge_status_block);
3548 /* Destroy statistics block */
3549 bge_dma_block_free(sc->bge_cdata.bge_stats_tag,
3550 sc->bge_cdata.bge_stats_map,
3551 sc->bge_ldata.bge_stats);
3553 /* Destroy the parent tag */
3554 if (sc->bge_cdata.bge_parent_tag != NULL)
3555 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag);
3559 bge_dma_alloc(struct bge_softc *sc)
3561 struct ifnet *ifp = &sc->arpcom.ac_if;
3564 bus_size_t boundary;
3567 if (sc->bge_flags & BGE_FLAG_BOUNDARY_4G)
3568 boundary = BGE_DMA_BOUNDARY_4G;
3570 lowaddr = BUS_SPACE_MAXADDR;
3571 if (sc->bge_flags & BGE_FLAG_MAXADDR_40BIT)
3572 lowaddr = BGE_DMA_MAXADDR_40BIT;
3575 * Allocate the parent bus DMA tag appropriate for PCI.
3577 error = bus_dma_tag_create(NULL, 1, boundary,
3578 lowaddr, BUS_SPACE_MAXADDR,
3580 BUS_SPACE_MAXSIZE_32BIT, 0,
3581 BUS_SPACE_MAXSIZE_32BIT,
3582 0, &sc->bge_cdata.bge_parent_tag);
3584 if_printf(ifp, "could not allocate parent dma tag\n");
3589 * Create DMA tag and maps for RX mbufs.
3591 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3592 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3593 NULL, NULL, MCLBYTES, 1, MCLBYTES,
3594 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
3595 &sc->bge_cdata.bge_rx_mtag);
3597 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
3601 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3602 BUS_DMA_WAITOK, &sc->bge_cdata.bge_rx_tmpmap);
3604 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3605 sc->bge_cdata.bge_rx_mtag = NULL;
3609 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3610 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3612 &sc->bge_cdata.bge_rx_std_dmamap[i]);
3616 for (j = 0; j < i; ++j) {
3617 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3618 sc->bge_cdata.bge_rx_std_dmamap[j]);
3620 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3621 sc->bge_cdata.bge_rx_mtag = NULL;
3623 if_printf(ifp, "could not create DMA map for RX\n");
3629 * Create DMA tag and maps for TX mbufs.
3631 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3632 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3634 BGE_JUMBO_FRAMELEN, BGE_NSEG_NEW, MCLBYTES,
3635 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
3637 &sc->bge_cdata.bge_tx_mtag);
3639 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
3643 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3644 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag,
3645 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
3646 &sc->bge_cdata.bge_tx_dmamap[i]);
3650 for (j = 0; j < i; ++j) {
3651 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3652 sc->bge_cdata.bge_tx_dmamap[j]);
3654 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3655 sc->bge_cdata.bge_tx_mtag = NULL;
3657 if_printf(ifp, "could not create DMA map for TX\n");
3663 * Create DMA stuffs for standard RX ring.
3665 error = bge_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
3666 &sc->bge_cdata.bge_rx_std_ring_tag,
3667 &sc->bge_cdata.bge_rx_std_ring_map,
3668 (void *)&sc->bge_ldata.bge_rx_std_ring,
3669 &sc->bge_ldata.bge_rx_std_ring_paddr);
3671 if_printf(ifp, "could not create std RX ring\n");
3676 * Create jumbo buffer pool.
3678 if (BGE_IS_JUMBO_CAPABLE(sc)) {
3679 error = bge_alloc_jumbo_mem(sc);
3681 if_printf(ifp, "could not create jumbo buffer pool\n");
3687 * Create DMA stuffs for RX return ring.
3689 error = bge_dma_block_alloc(sc, BGE_RX_RTN_RING_SZ(sc),
3690 &sc->bge_cdata.bge_rx_return_ring_tag,
3691 &sc->bge_cdata.bge_rx_return_ring_map,
3692 (void *)&sc->bge_ldata.bge_rx_return_ring,
3693 &sc->bge_ldata.bge_rx_return_ring_paddr);
3695 if_printf(ifp, "could not create RX ret ring\n");
3700 * Create DMA stuffs for TX ring.
3702 error = bge_dma_block_alloc(sc, BGE_TX_RING_SZ,
3703 &sc->bge_cdata.bge_tx_ring_tag,
3704 &sc->bge_cdata.bge_tx_ring_map,
3705 (void *)&sc->bge_ldata.bge_tx_ring,
3706 &sc->bge_ldata.bge_tx_ring_paddr);
3708 if_printf(ifp, "could not create TX ring\n");
3713 * Create DMA stuffs for status block.
3715 error = bge_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
3716 &sc->bge_cdata.bge_status_tag,
3717 &sc->bge_cdata.bge_status_map,
3718 (void *)&sc->bge_ldata.bge_status_block,
3719 &sc->bge_ldata.bge_status_block_paddr);
3721 if_printf(ifp, "could not create status block\n");
3726 * Create DMA stuffs for statistics block.
3728 error = bge_dma_block_alloc(sc, BGE_STATS_SZ,
3729 &sc->bge_cdata.bge_stats_tag,
3730 &sc->bge_cdata.bge_stats_map,
3731 (void *)&sc->bge_ldata.bge_stats,
3732 &sc->bge_ldata.bge_stats_paddr);
3734 if_printf(ifp, "could not create stats block\n");
3741 bge_dma_block_alloc(struct bge_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
3742 bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
3747 error = bus_dmamem_coherent(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0,
3748 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3749 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
3753 *tag = dmem.dmem_tag;
3754 *map = dmem.dmem_map;
3755 *addr = dmem.dmem_addr;
3756 *paddr = dmem.dmem_busaddr;
3762 bge_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
3765 bus_dmamap_unload(tag, map);
3766 bus_dmamem_free(tag, addr, map);
3767 bus_dma_tag_destroy(tag);
3772 * Grrr. The link status word in the status block does
3773 * not work correctly on the BCM5700 rev AX and BX chips,
3774 * according to all available information. Hence, we have
3775 * to enable MII interrupts in order to properly obtain
3776 * async link changes. Unfortunately, this also means that
3777 * we have to read the MAC status register to detect link
3778 * changes, thereby adding an additional register access to
3779 * the interrupt handler.
3781 * XXX: perhaps link state detection procedure used for
3782 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions.
3785 bge_bcm5700_link_upd(struct bge_softc *sc, uint32_t status __unused)
3787 struct ifnet *ifp = &sc->arpcom.ac_if;
3788 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3792 if (!sc->bge_link &&
3793 (mii->mii_media_status & IFM_ACTIVE) &&
3794 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3797 if_printf(ifp, "link UP\n");
3798 } else if (sc->bge_link &&
3799 (!(mii->mii_media_status & IFM_ACTIVE) ||
3800 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3803 if_printf(ifp, "link DOWN\n");
3806 /* Clear the interrupt. */
3807 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT);
3808 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR);
3809 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS);
3813 bge_tbi_link_upd(struct bge_softc *sc, uint32_t status)
3815 struct ifnet *ifp = &sc->arpcom.ac_if;
3817 #define PCS_ENCODE_ERR (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
3820 * Sometimes PCS encoding errors are detected in
3821 * TBI mode (on fiber NICs), and for some reason
3822 * the chip will signal them as link changes.
3823 * If we get a link change event, but the 'PCS
3824 * encoding error' bit in the MAC status register
3825 * is set, don't bother doing a link check.
3826 * This avoids spurious "gigabit link up" messages
3827 * that sometimes appear on fiber NICs during
3828 * periods of heavy traffic.
3830 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
3831 if (!sc->bge_link) {
3833 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3834 BGE_CLRBIT(sc, BGE_MAC_MODE,
3835 BGE_MACMODE_TBI_SEND_CFGS);
3837 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
3840 if_printf(ifp, "link UP\n");
3842 ifp->if_link_state = LINK_STATE_UP;
3843 if_link_state_change(ifp);
3845 } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
3850 if_printf(ifp, "link DOWN\n");
3852 ifp->if_link_state = LINK_STATE_DOWN;
3853 if_link_state_change(ifp);
3857 #undef PCS_ENCODE_ERR
3859 /* Clear the attention. */
3860 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3861 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3862 BGE_MACSTAT_LINK_CHANGED);
3866 bge_copper_link_upd(struct bge_softc *sc, uint32_t status __unused)
3869 * Check that the AUTOPOLL bit is set before
3870 * processing the event as a real link change.
3871 * Turning AUTOPOLL on and off in the MII read/write
3872 * functions will often trigger a link status
3873 * interrupt for no reason.
3875 if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) {
3876 struct ifnet *ifp = &sc->arpcom.ac_if;
3877 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3881 if (!sc->bge_link &&
3882 (mii->mii_media_status & IFM_ACTIVE) &&
3883 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3886 if_printf(ifp, "link UP\n");
3887 } else if (sc->bge_link &&
3888 (!(mii->mii_media_status & IFM_ACTIVE) ||
3889 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3892 if_printf(ifp, "link DOWN\n");
3896 /* Clear the attention. */
3897 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3898 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3899 BGE_MACSTAT_LINK_CHANGED);
3903 bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
3905 struct bge_softc *sc = arg1;
3907 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3908 &sc->bge_rx_coal_ticks,
3909 BGE_RX_COAL_TICKS_CHG);
3913 bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
3915 struct bge_softc *sc = arg1;
3917 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3918 &sc->bge_tx_coal_ticks,
3919 BGE_TX_COAL_TICKS_CHG);
3923 bge_sysctl_rx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3925 struct bge_softc *sc = arg1;
3927 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3928 &sc->bge_rx_max_coal_bds,
3929 BGE_RX_MAX_COAL_BDS_CHG);
3933 bge_sysctl_tx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3935 struct bge_softc *sc = arg1;
3937 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3938 &sc->bge_tx_max_coal_bds,
3939 BGE_TX_MAX_COAL_BDS_CHG);
3943 bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
3944 uint32_t coal_chg_mask)
3946 struct bge_softc *sc = arg1;
3947 struct ifnet *ifp = &sc->arpcom.ac_if;
3950 lwkt_serialize_enter(ifp->if_serializer);
3953 error = sysctl_handle_int(oidp, &v, 0, req);
3954 if (!error && req->newptr != NULL) {
3959 sc->bge_coal_chg |= coal_chg_mask;
3963 lwkt_serialize_exit(ifp->if_serializer);
3968 bge_coal_change(struct bge_softc *sc)
3970 struct ifnet *ifp = &sc->arpcom.ac_if;
3973 ASSERT_SERIALIZED(ifp->if_serializer);
3975 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_CHG) {
3976 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
3977 sc->bge_rx_coal_ticks);
3979 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
3982 if_printf(ifp, "rx_coal_ticks -> %u\n",
3983 sc->bge_rx_coal_ticks);
3987 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_CHG) {
3988 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
3989 sc->bge_tx_coal_ticks);
3991 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
3994 if_printf(ifp, "tx_coal_ticks -> %u\n",
3995 sc->bge_tx_coal_ticks);
3999 if (sc->bge_coal_chg & BGE_RX_MAX_COAL_BDS_CHG) {
4000 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
4001 sc->bge_rx_max_coal_bds);
4003 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
4006 if_printf(ifp, "rx_max_coal_bds -> %u\n",
4007 sc->bge_rx_max_coal_bds);
4011 if (sc->bge_coal_chg & BGE_TX_MAX_COAL_BDS_CHG) {
4012 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
4013 sc->bge_tx_max_coal_bds);
4015 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
4018 if_printf(ifp, "tx_max_coal_bds -> %u\n",
4019 sc->bge_tx_max_coal_bds);
4023 sc->bge_coal_chg = 0;
4027 bge_enable_intr(struct bge_softc *sc)
4029 struct ifnet *ifp = &sc->arpcom.ac_if;
4031 lwkt_serialize_handler_enable(ifp->if_serializer);
4036 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
4039 * Unmask the interrupt when we stop polling.
4041 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
4044 * Trigger another interrupt, since above writing
4045 * to interrupt mailbox0 may acknowledge pending
4048 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
4052 bge_disable_intr(struct bge_softc *sc)
4054 struct ifnet *ifp = &sc->arpcom.ac_if;
4057 * Mask the interrupt when we start polling.
4059 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
4062 * Acknowledge possible asserted interrupt.
4064 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
4066 lwkt_serialize_handler_disable(ifp->if_serializer);
4070 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[])
4075 mac_addr = bge_readmem_ind(sc, 0x0c14);
4076 if ((mac_addr >> 16) == 0x484b) {
4077 ether_addr[0] = (uint8_t)(mac_addr >> 8);
4078 ether_addr[1] = (uint8_t)mac_addr;
4079 mac_addr = bge_readmem_ind(sc, 0x0c18);
4080 ether_addr[2] = (uint8_t)(mac_addr >> 24);
4081 ether_addr[3] = (uint8_t)(mac_addr >> 16);
4082 ether_addr[4] = (uint8_t)(mac_addr >> 8);
4083 ether_addr[5] = (uint8_t)mac_addr;
4090 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[])
4092 int mac_offset = BGE_EE_MAC_OFFSET;
4094 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
4095 mac_offset = BGE_EE_MAC_OFFSET_5906;
4097 return bge_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4101 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[])
4103 if (sc->bge_flags & BGE_FLAG_NO_EEPROM)
4106 return bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4111 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[])
4113 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = {
4114 /* NOTE: Order is critical */
4116 bge_get_eaddr_nvram,
4117 bge_get_eaddr_eeprom,
4120 const bge_eaddr_fcn_t *func;
4122 for (func = bge_eaddr_funcs; *func != NULL; ++func) {
4123 if ((*func)(sc, eaddr) == 0)
4126 return (*func == NULL ? ENXIO : 0);