2 * Copyright (c) 2001 Wind River Systems
3 * Copyright (c) 1997, 1998, 1999, 2001
4 * Bill Paul <wpaul@windriver.com>. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Bill Paul.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
33 * $FreeBSD: src/sys/dev/bge/if_bge.c,v 1.3.2.39 2005/07/03 03:41:18 silby Exp $
37 * Broadcom BCM570x family gigabit ethernet driver for FreeBSD.
39 * Written by Bill Paul <wpaul@windriver.com>
40 * Senior Engineer, Wind River Systems
44 * The Broadcom BCM5700 is based on technology originally developed by
45 * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet
46 * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has
47 * two on-board MIPS R4000 CPUs and can have as much as 16MB of external
48 * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo
49 * frames, highly configurable RX filtering, and 16 RX and TX queues
50 * (which, along with RX filter rules, can be used for QOS applications).
51 * Other features, such as TCP segmentation, may be available as part
52 * of value-added firmware updates. Unlike the Tigon I and Tigon II,
53 * firmware images can be stored in hardware and need not be compiled
56 * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will
57 * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus.
59 * The BCM5701 is a single-chip solution incorporating both the BCM5700
60 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701
61 * does not support external SSRAM.
63 * Broadcom also produces a variation of the BCM5700 under the "Altima"
64 * brand name, which is functionally similar but lacks PCI-X support.
66 * Without external SSRAM, you can only have at most 4 TX rings,
67 * and the use of the mini RX ring is disabled. This seems to imply
68 * that these features are simply not available on the BCM5701. As a
69 * result, this driver does not implement any support for the mini RX
73 #include "opt_polling.h"
75 #include <sys/param.h>
77 #include <sys/endian.h>
78 #include <sys/kernel.h>
80 #include <sys/interrupt.h>
82 #include <sys/malloc.h>
83 #include <sys/queue.h>
85 #include <sys/serialize.h>
86 #include <sys/socket.h>
87 #include <sys/sockio.h>
88 #include <sys/sysctl.h>
91 #include <net/ethernet.h>
93 #include <net/if_arp.h>
94 #include <net/if_dl.h>
95 #include <net/if_media.h>
96 #include <net/if_types.h>
97 #include <net/ifq_var.h>
98 #include <net/vlan/if_vlan_var.h>
99 #include <net/vlan/if_vlan_ether.h>
101 #include <dev/netif/mii_layer/mii.h>
102 #include <dev/netif/mii_layer/miivar.h>
103 #include <dev/netif/mii_layer/brgphyreg.h>
105 #include <bus/pci/pcidevs.h>
106 #include <bus/pci/pcireg.h>
107 #include <bus/pci/pcivar.h>
109 #include <dev/netif/bge/if_bgereg.h>
111 /* "device miibus" required. See GENERIC if you get errors here. */
112 #include "miibus_if.h"
114 #define BGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP)
115 #define BGE_MIN_FRAME 60
117 static const struct bge_type bge_devs[] = {
118 { PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3C996,
119 "3COM 3C996 Gigabit Ethernet" },
121 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5700,
122 "Alteon BCM5700 Gigabit Ethernet" },
123 { PCI_VENDOR_ALTEON, PCI_PRODUCT_ALTEON_BCM5701,
124 "Alteon BCM5701 Gigabit Ethernet" },
126 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1000,
127 "Altima AC1000 Gigabit Ethernet" },
128 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC1001,
129 "Altima AC1002 Gigabit Ethernet" },
130 { PCI_VENDOR_ALTIMA, PCI_PRODUCT_ALTIMA_AC9100,
131 "Altima AC9100 Gigabit Ethernet" },
133 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_BCM5701,
134 "Apple BCM5701 Gigabit Ethernet" },
136 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5700,
137 "Broadcom BCM5700 Gigabit Ethernet" },
138 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5701,
139 "Broadcom BCM5701 Gigabit Ethernet" },
140 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702,
141 "Broadcom BCM5702 Gigabit Ethernet" },
142 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702X,
143 "Broadcom BCM5702X Gigabit Ethernet" },
144 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5702_ALT,
145 "Broadcom BCM5702 Gigabit Ethernet" },
146 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703,
147 "Broadcom BCM5703 Gigabit Ethernet" },
148 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703X,
149 "Broadcom BCM5703X Gigabit Ethernet" },
150 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5703A3,
151 "Broadcom BCM5703 Gigabit Ethernet" },
152 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704C,
153 "Broadcom BCM5704C Dual Gigabit Ethernet" },
154 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S,
155 "Broadcom BCM5704S Dual Gigabit Ethernet" },
156 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5704S_ALT,
157 "Broadcom BCM5704S Dual Gigabit Ethernet" },
158 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705,
159 "Broadcom BCM5705 Gigabit Ethernet" },
160 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705F,
161 "Broadcom BCM5705F Gigabit Ethernet" },
162 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705K,
163 "Broadcom BCM5705K Gigabit Ethernet" },
164 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M,
165 "Broadcom BCM5705M Gigabit Ethernet" },
166 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5705M_ALT,
167 "Broadcom BCM5705M Gigabit Ethernet" },
168 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714,
169 "Broadcom BCM5714C Gigabit Ethernet" },
170 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5714S,
171 "Broadcom BCM5714S Gigabit Ethernet" },
172 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715,
173 "Broadcom BCM5715 Gigabit Ethernet" },
174 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5715S,
175 "Broadcom BCM5715S Gigabit Ethernet" },
176 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5720,
177 "Broadcom BCM5720 Gigabit Ethernet" },
178 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5721,
179 "Broadcom BCM5721 Gigabit Ethernet" },
180 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5722,
181 "Broadcom BCM5722 Gigabit Ethernet" },
182 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5723,
183 "Broadcom BCM5723 Gigabit Ethernet" },
184 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750,
185 "Broadcom BCM5750 Gigabit Ethernet" },
186 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5750M,
187 "Broadcom BCM5750M Gigabit Ethernet" },
188 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751,
189 "Broadcom BCM5751 Gigabit Ethernet" },
190 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751F,
191 "Broadcom BCM5751F Gigabit Ethernet" },
192 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5751M,
193 "Broadcom BCM5751M Gigabit Ethernet" },
194 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752,
195 "Broadcom BCM5752 Gigabit Ethernet" },
196 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5752M,
197 "Broadcom BCM5752M Gigabit Ethernet" },
198 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753,
199 "Broadcom BCM5753 Gigabit Ethernet" },
200 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753F,
201 "Broadcom BCM5753F Gigabit Ethernet" },
202 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5753M,
203 "Broadcom BCM5753M Gigabit Ethernet" },
204 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754,
205 "Broadcom BCM5754 Gigabit Ethernet" },
206 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5754M,
207 "Broadcom BCM5754M Gigabit Ethernet" },
208 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755,
209 "Broadcom BCM5755 Gigabit Ethernet" },
210 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5755M,
211 "Broadcom BCM5755M Gigabit Ethernet" },
212 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5756,
213 "Broadcom BCM5756 Gigabit Ethernet" },
214 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761,
215 "Broadcom BCM5761 Gigabit Ethernet" },
216 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761E,
217 "Broadcom BCM5761E Gigabit Ethernet" },
218 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761S,
219 "Broadcom BCM5761S Gigabit Ethernet" },
220 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5761SE,
221 "Broadcom BCM5761SE Gigabit Ethernet" },
222 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5764,
223 "Broadcom BCM5764 Gigabit Ethernet" },
224 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780,
225 "Broadcom BCM5780 Gigabit Ethernet" },
226 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5780S,
227 "Broadcom BCM5780S Gigabit Ethernet" },
228 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5781,
229 "Broadcom BCM5781 Gigabit Ethernet" },
230 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5782,
231 "Broadcom BCM5782 Gigabit Ethernet" },
232 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5784,
233 "Broadcom BCM5784 Gigabit Ethernet" },
234 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785F,
235 "Broadcom BCM5785F Gigabit Ethernet" },
236 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5785G,
237 "Broadcom BCM5785G Gigabit Ethernet" },
238 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5786,
239 "Broadcom BCM5786 Gigabit Ethernet" },
240 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787,
241 "Broadcom BCM5787 Gigabit Ethernet" },
242 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787F,
243 "Broadcom BCM5787F Gigabit Ethernet" },
244 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5787M,
245 "Broadcom BCM5787M Gigabit Ethernet" },
246 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5788,
247 "Broadcom BCM5788 Gigabit Ethernet" },
248 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5789,
249 "Broadcom BCM5789 Gigabit Ethernet" },
250 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901,
251 "Broadcom BCM5901 Fast Ethernet" },
252 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5901A2,
253 "Broadcom BCM5901A2 Fast Ethernet" },
254 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5903M,
255 "Broadcom BCM5903M Fast Ethernet" },
256 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906,
257 "Broadcom BCM5906 Fast Ethernet"},
258 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM5906M,
259 "Broadcom BCM5906M Fast Ethernet"},
260 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57760,
261 "Broadcom BCM57760 Gigabit Ethernet"},
262 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57780,
263 "Broadcom BCM57780 Gigabit Ethernet"},
264 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57788,
265 "Broadcom BCM57788 Gigabit Ethernet"},
266 { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_BCM57790,
267 "Broadcom BCM57790 Gigabit Ethernet"},
268 { PCI_VENDOR_SCHNEIDERKOCH, PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1,
269 "SysKonnect Gigabit Ethernet" },
274 #define BGE_IS_JUMBO_CAPABLE(sc) ((sc)->bge_flags & BGE_FLAG_JUMBO)
275 #define BGE_IS_5700_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5700_FAMILY)
276 #define BGE_IS_5705_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5705_PLUS)
277 #define BGE_IS_5714_FAMILY(sc) ((sc)->bge_flags & BGE_FLAG_5714_FAMILY)
278 #define BGE_IS_575X_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_575X_PLUS)
279 #define BGE_IS_5755_PLUS(sc) ((sc)->bge_flags & BGE_FLAG_5755_PLUS)
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;
635 KASSERT(phy == sc->bge_phyno,
636 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
638 /* Reading with autopolling on may trigger PCI errors */
639 autopoll = CSR_READ_4(sc, BGE_MI_MODE);
640 if (autopoll & BGE_MIMODE_AUTOPOLL) {
641 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
645 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY|
646 BGE_MIPHY(phy)|BGE_MIREG(reg));
648 for (i = 0; i < BGE_TIMEOUT; i++) {
650 val = CSR_READ_4(sc, BGE_MI_COMM);
651 if (!(val & BGE_MICOMM_BUSY))
655 if (i == BGE_TIMEOUT) {
656 if_printf(ifp, "PHY read timed out "
657 "(phy %d, reg %d, val 0x%08x)\n", phy, reg, val);
663 val = CSR_READ_4(sc, BGE_MI_COMM);
666 if (autopoll & BGE_MIMODE_AUTOPOLL) {
667 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
671 if (val & BGE_MICOMM_READFAIL)
674 return(val & 0xFFFF);
678 bge_miibus_writereg(device_t dev, int phy, int reg, int val)
680 struct bge_softc *sc = device_get_softc(dev);
684 KASSERT(phy == sc->bge_phyno,
685 ("invalid phyno %d, should be %d", phy, sc->bge_phyno));
687 if (sc->bge_asicrev == BGE_ASICREV_BCM5906 &&
688 (reg == BRGPHY_MII_1000CTL || reg == BRGPHY_MII_AUXCTL))
691 /* Reading with autopolling on may trigger PCI errors */
692 autopoll = CSR_READ_4(sc, BGE_MI_MODE);
693 if (autopoll & BGE_MIMODE_AUTOPOLL) {
694 BGE_CLRBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
698 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY|
699 BGE_MIPHY(phy)|BGE_MIREG(reg)|val);
701 for (i = 0; i < BGE_TIMEOUT; i++) {
703 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) {
705 CSR_READ_4(sc, BGE_MI_COMM); /* dummy read */
710 if (autopoll & BGE_MIMODE_AUTOPOLL) {
711 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL);
715 if (i == BGE_TIMEOUT) {
716 if_printf(&sc->arpcom.ac_if, "PHY write timed out "
717 "(phy %d, reg %d, val %d)\n", phy, reg, val);
725 bge_miibus_statchg(device_t dev)
727 struct bge_softc *sc;
728 struct mii_data *mii;
730 sc = device_get_softc(dev);
731 mii = device_get_softc(sc->bge_miibus);
733 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE);
734 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T ||
735 IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) {
736 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII);
738 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII);
741 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
742 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
744 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX);
749 * Memory management for jumbo frames.
752 bge_alloc_jumbo_mem(struct bge_softc *sc)
754 struct ifnet *ifp = &sc->arpcom.ac_if;
755 struct bge_jslot *entry;
761 * Create tag for jumbo mbufs.
762 * This is really a bit of a kludge. We allocate a special
763 * jumbo buffer pool which (thanks to the way our DMA
764 * memory allocation works) will consist of contiguous
765 * pages. This means that even though a jumbo buffer might
766 * be larger than a page size, we don't really need to
767 * map it into more than one DMA segment. However, the
768 * default mbuf tag will result in multi-segment mappings,
769 * so we have to create a special jumbo mbuf tag that
770 * lets us get away with mapping the jumbo buffers as
771 * a single segment. I think eventually the driver should
772 * be changed so that it uses ordinary mbufs and cluster
773 * buffers, i.e. jumbo frames can span multiple DMA
774 * descriptors. But that's a project for another day.
778 * Create DMA stuffs for jumbo RX ring.
780 error = bge_dma_block_alloc(sc, BGE_JUMBO_RX_RING_SZ,
781 &sc->bge_cdata.bge_rx_jumbo_ring_tag,
782 &sc->bge_cdata.bge_rx_jumbo_ring_map,
783 (void *)&sc->bge_ldata.bge_rx_jumbo_ring,
784 &sc->bge_ldata.bge_rx_jumbo_ring_paddr);
786 if_printf(ifp, "could not create jumbo RX ring\n");
791 * Create DMA stuffs for jumbo buffer block.
793 error = bge_dma_block_alloc(sc, BGE_JMEM,
794 &sc->bge_cdata.bge_jumbo_tag,
795 &sc->bge_cdata.bge_jumbo_map,
796 (void **)&sc->bge_ldata.bge_jumbo_buf,
799 if_printf(ifp, "could not create jumbo buffer\n");
803 SLIST_INIT(&sc->bge_jfree_listhead);
806 * Now divide it up into 9K pieces and save the addresses
807 * in an array. Note that we play an evil trick here by using
808 * the first few bytes in the buffer to hold the the address
809 * of the softc structure for this interface. This is because
810 * bge_jfree() needs it, but it is called by the mbuf management
811 * code which will not pass it to us explicitly.
813 for (i = 0, ptr = sc->bge_ldata.bge_jumbo_buf; i < BGE_JSLOTS; i++) {
814 entry = &sc->bge_cdata.bge_jslots[i];
816 entry->bge_buf = ptr;
817 entry->bge_paddr = paddr;
818 entry->bge_inuse = 0;
820 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jslot_link);
829 bge_free_jumbo_mem(struct bge_softc *sc)
831 /* Destroy jumbo RX ring. */
832 bge_dma_block_free(sc->bge_cdata.bge_rx_jumbo_ring_tag,
833 sc->bge_cdata.bge_rx_jumbo_ring_map,
834 sc->bge_ldata.bge_rx_jumbo_ring);
836 /* Destroy jumbo buffer block. */
837 bge_dma_block_free(sc->bge_cdata.bge_jumbo_tag,
838 sc->bge_cdata.bge_jumbo_map,
839 sc->bge_ldata.bge_jumbo_buf);
843 * Allocate a jumbo buffer.
845 static struct bge_jslot *
846 bge_jalloc(struct bge_softc *sc)
848 struct bge_jslot *entry;
850 lwkt_serialize_enter(&sc->bge_jslot_serializer);
851 entry = SLIST_FIRST(&sc->bge_jfree_listhead);
853 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jslot_link);
854 entry->bge_inuse = 1;
856 if_printf(&sc->arpcom.ac_if, "no free jumbo buffers\n");
858 lwkt_serialize_exit(&sc->bge_jslot_serializer);
863 * Adjust usage count on a jumbo buffer.
868 struct bge_jslot *entry = (struct bge_jslot *)arg;
869 struct bge_softc *sc = entry->bge_sc;
872 panic("bge_jref: can't find softc pointer!");
874 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
875 panic("bge_jref: asked to reference buffer "
876 "that we don't manage!");
877 } else if (entry->bge_inuse == 0) {
878 panic("bge_jref: buffer already free!");
880 atomic_add_int(&entry->bge_inuse, 1);
885 * Release a jumbo buffer.
890 struct bge_jslot *entry = (struct bge_jslot *)arg;
891 struct bge_softc *sc = entry->bge_sc;
894 panic("bge_jfree: can't find softc pointer!");
896 if (&sc->bge_cdata.bge_jslots[entry->bge_slot] != entry) {
897 panic("bge_jfree: asked to free buffer that we don't manage!");
898 } else if (entry->bge_inuse == 0) {
899 panic("bge_jfree: buffer already free!");
902 * Possible MP race to 0, use the serializer. The atomic insn
903 * is still needed for races against bge_jref().
905 lwkt_serialize_enter(&sc->bge_jslot_serializer);
906 atomic_subtract_int(&entry->bge_inuse, 1);
907 if (entry->bge_inuse == 0) {
908 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead,
911 lwkt_serialize_exit(&sc->bge_jslot_serializer);
917 * Intialize a standard receive ring descriptor.
920 bge_newbuf_std(struct bge_softc *sc, int i, int init)
922 struct mbuf *m_new = NULL;
923 bus_dma_segment_t seg;
927 m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
930 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
932 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0)
933 m_adj(m_new, ETHER_ALIGN);
935 error = bus_dmamap_load_mbuf_segment(sc->bge_cdata.bge_rx_mtag,
936 sc->bge_cdata.bge_rx_tmpmap, m_new,
937 &seg, 1, &nsegs, BUS_DMA_NOWAIT);
944 bus_dmamap_sync(sc->bge_cdata.bge_rx_mtag,
945 sc->bge_cdata.bge_rx_std_dmamap[i],
946 BUS_DMASYNC_POSTREAD);
947 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
948 sc->bge_cdata.bge_rx_std_dmamap[i]);
951 map = sc->bge_cdata.bge_rx_tmpmap;
952 sc->bge_cdata.bge_rx_tmpmap = sc->bge_cdata.bge_rx_std_dmamap[i];
953 sc->bge_cdata.bge_rx_std_dmamap[i] = map;
955 sc->bge_cdata.bge_rx_std_chain[i].bge_mbuf = m_new;
956 sc->bge_cdata.bge_rx_std_chain[i].bge_paddr = seg.ds_addr;
958 bge_setup_rxdesc_std(sc, i);
963 bge_setup_rxdesc_std(struct bge_softc *sc, int i)
965 struct bge_rxchain *rc;
968 rc = &sc->bge_cdata.bge_rx_std_chain[i];
969 r = &sc->bge_ldata.bge_rx_std_ring[i];
971 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
972 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
973 r->bge_len = rc->bge_mbuf->m_len;
975 r->bge_flags = BGE_RXBDFLAG_END;
979 * Initialize a jumbo receive ring descriptor. This allocates
980 * a jumbo buffer from the pool managed internally by the driver.
983 bge_newbuf_jumbo(struct bge_softc *sc, int i, int init)
985 struct mbuf *m_new = NULL;
986 struct bge_jslot *buf;
989 /* Allocate the mbuf. */
990 MGETHDR(m_new, init ? MB_WAIT : MB_DONTWAIT, MT_DATA);
994 /* Allocate the jumbo buffer */
995 buf = bge_jalloc(sc);
1001 /* Attach the buffer to the mbuf. */
1002 m_new->m_ext.ext_arg = buf;
1003 m_new->m_ext.ext_buf = buf->bge_buf;
1004 m_new->m_ext.ext_free = bge_jfree;
1005 m_new->m_ext.ext_ref = bge_jref;
1006 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN;
1008 m_new->m_flags |= M_EXT;
1010 m_new->m_data = m_new->m_ext.ext_buf;
1011 m_new->m_len = m_new->m_pkthdr.len = m_new->m_ext.ext_size;
1013 paddr = buf->bge_paddr;
1014 if ((sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) == 0) {
1015 m_adj(m_new, ETHER_ALIGN);
1016 paddr += ETHER_ALIGN;
1019 /* Save necessary information */
1020 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_mbuf = m_new;
1021 sc->bge_cdata.bge_rx_jumbo_chain[i].bge_paddr = paddr;
1023 /* Set up the descriptor. */
1024 bge_setup_rxdesc_jumbo(sc, i);
1029 bge_setup_rxdesc_jumbo(struct bge_softc *sc, int i)
1031 struct bge_rx_bd *r;
1032 struct bge_rxchain *rc;
1034 r = &sc->bge_ldata.bge_rx_jumbo_ring[i];
1035 rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1037 r->bge_addr.bge_addr_lo = BGE_ADDR_LO(rc->bge_paddr);
1038 r->bge_addr.bge_addr_hi = BGE_ADDR_HI(rc->bge_paddr);
1039 r->bge_len = rc->bge_mbuf->m_len;
1041 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING;
1045 bge_init_rx_ring_std(struct bge_softc *sc)
1049 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1050 error = bge_newbuf_std(sc, i, 1);
1055 sc->bge_std = BGE_STD_RX_RING_CNT - 1;
1056 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
1062 bge_free_rx_ring_std(struct bge_softc *sc)
1066 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
1067 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_std_chain[i];
1069 if (rc->bge_mbuf != NULL) {
1070 bus_dmamap_unload(sc->bge_cdata.bge_rx_mtag,
1071 sc->bge_cdata.bge_rx_std_dmamap[i]);
1072 m_freem(rc->bge_mbuf);
1073 rc->bge_mbuf = NULL;
1075 bzero(&sc->bge_ldata.bge_rx_std_ring[i],
1076 sizeof(struct bge_rx_bd));
1081 bge_init_rx_ring_jumbo(struct bge_softc *sc)
1083 struct bge_rcb *rcb;
1086 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1087 error = bge_newbuf_jumbo(sc, i, 1);
1092 sc->bge_jumbo = BGE_JUMBO_RX_RING_CNT - 1;
1094 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1095 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 0);
1096 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1098 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
1104 bge_free_rx_ring_jumbo(struct bge_softc *sc)
1108 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
1109 struct bge_rxchain *rc = &sc->bge_cdata.bge_rx_jumbo_chain[i];
1111 if (rc->bge_mbuf != NULL) {
1112 m_freem(rc->bge_mbuf);
1113 rc->bge_mbuf = NULL;
1115 bzero(&sc->bge_ldata.bge_rx_jumbo_ring[i],
1116 sizeof(struct bge_rx_bd));
1121 bge_free_tx_ring(struct bge_softc *sc)
1125 for (i = 0; i < BGE_TX_RING_CNT; i++) {
1126 if (sc->bge_cdata.bge_tx_chain[i] != NULL) {
1127 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
1128 sc->bge_cdata.bge_tx_dmamap[i]);
1129 m_freem(sc->bge_cdata.bge_tx_chain[i]);
1130 sc->bge_cdata.bge_tx_chain[i] = NULL;
1132 bzero(&sc->bge_ldata.bge_tx_ring[i],
1133 sizeof(struct bge_tx_bd));
1138 bge_init_tx_ring(struct bge_softc *sc)
1141 sc->bge_tx_saved_considx = 0;
1142 sc->bge_tx_prodidx = 0;
1144 /* Initialize transmit producer index for host-memory send ring. */
1145 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1147 /* 5700 b2 errata */
1148 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1149 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
1151 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1152 /* 5700 b2 errata */
1153 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
1154 bge_writembx(sc, BGE_MBX_TX_NIC_PROD0_LO, 0);
1160 bge_setmulti(struct bge_softc *sc)
1163 struct ifmultiaddr *ifma;
1164 uint32_t hashes[4] = { 0, 0, 0, 0 };
1167 ifp = &sc->arpcom.ac_if;
1169 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
1170 for (i = 0; i < 4; i++)
1171 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0xFFFFFFFF);
1175 /* First, zot all the existing filters. */
1176 for (i = 0; i < 4; i++)
1177 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), 0);
1179 /* Now program new ones. */
1180 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1181 if (ifma->ifma_addr->sa_family != AF_LINK)
1184 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
1185 ETHER_ADDR_LEN) & 0x7f;
1186 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
1189 for (i = 0; i < 4; i++)
1190 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]);
1194 * Do endian, PCI and DMA initialization. Also check the on-board ROM
1195 * self-test results.
1198 bge_chipinit(struct bge_softc *sc)
1201 uint32_t dma_rw_ctl;
1204 /* Set endian type before we access any non-PCI registers. */
1205 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, BGE_INIT, 4);
1207 /* Clear the MAC control register */
1208 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
1211 * Clear the MAC statistics block in the NIC's
1214 for (i = BGE_STATS_BLOCK;
1215 i < BGE_STATS_BLOCK_END + 1; i += sizeof(uint32_t))
1216 BGE_MEMWIN_WRITE(sc, i, 0);
1218 for (i = BGE_STATUS_BLOCK;
1219 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(uint32_t))
1220 BGE_MEMWIN_WRITE(sc, i, 0);
1222 if (sc->bge_chiprev == BGE_CHIPREV_5704_BX) {
1224 * Fix data corruption caused by non-qword write with WB.
1225 * Fix master abort in PCI mode.
1226 * Fix PCI latency timer.
1228 val = pci_read_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, 2);
1229 val |= (1 << 10) | (1 << 12) | (1 << 13);
1230 pci_write_config(sc->bge_dev, BGE_PCI_MSI_DATA + 2, val, 2);
1233 /* Set up the PCI DMA control register. */
1234 if (sc->bge_flags & BGE_FLAG_PCIE) {
1236 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1237 (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1238 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1239 } else if (sc->bge_flags & BGE_FLAG_PCIX) {
1241 if (BGE_IS_5714_FAMILY(sc)) {
1242 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD;
1243 dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */
1244 /* XXX magic values, Broadcom-supplied Linux driver */
1245 if (sc->bge_asicrev == BGE_ASICREV_BCM5780) {
1246 dma_rw_ctl |= (1 << 20) | (1 << 18) |
1247 BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1249 dma_rw_ctl |= (1 << 20) | (1 << 18) | (1 << 15);
1251 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
1253 * In the BCM5703, the DMA read watermark should
1254 * be set to less than or equal to the maximum
1255 * memory read byte count of the PCI-X command
1258 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1259 (0x4 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1260 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1261 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1263 * The 5704 uses a different encoding of read/write
1266 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1267 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1268 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT);
1270 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1271 (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1272 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1277 * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround
1278 * for hardware bugs.
1280 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1281 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
1284 tmp = CSR_READ_4(sc, BGE_PCI_CLKCTL) & 0x1f;
1285 if (tmp == 0x6 || tmp == 0x7)
1286 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE;
1289 /* Conventional PCI bus */
1290 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD |
1291 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) |
1292 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) |
1296 if (sc->bge_asicrev == BGE_ASICREV_BCM5703 ||
1297 sc->bge_asicrev == BGE_ASICREV_BCM5704 ||
1298 sc->bge_asicrev == BGE_ASICREV_BCM5705)
1299 dma_rw_ctl &= ~BGE_PCIDMARWCTL_MINDMA;
1300 pci_write_config(sc->bge_dev, BGE_PCI_DMA_RW_CTL, dma_rw_ctl, 4);
1303 * Set up general mode register.
1305 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS|
1306 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS|
1307 BGE_MODECTL_TX_NO_PHDR_CSUM);
1310 * BCM5701 B5 have a bug causing data corruption when using
1311 * 64-bit DMA reads, which can be terminated early and then
1312 * completed later as 32-bit accesses, in combination with
1315 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
1316 sc->bge_chipid == BGE_CHIPID_BCM5701_B5)
1317 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_FORCE_PCI32);
1320 * Disable memory write invalidate. Apparently it is not supported
1321 * properly by these devices.
1323 PCI_CLRBIT(sc->bge_dev, BGE_PCI_CMD, PCIM_CMD_MWIEN, 4);
1325 /* Set the timer prescaler (always 66Mhz) */
1326 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/);
1328 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1329 DELAY(40); /* XXX */
1331 /* Put PHY into ready state */
1332 BGE_CLRBIT(sc, BGE_MISC_CFG, BGE_MISCCFG_EPHY_IDDQ);
1333 CSR_READ_4(sc, BGE_MISC_CFG); /* Flush */
1341 bge_blockinit(struct bge_softc *sc)
1343 struct bge_rcb *rcb;
1350 * Initialize the memory window pointer register so that
1351 * we can access the first 32K of internal NIC RAM. This will
1352 * allow us to set up the TX send ring RCBs and the RX return
1353 * ring RCBs, plus other things which live in NIC memory.
1355 CSR_WRITE_4(sc, BGE_PCI_MEMWIN_BASEADDR, 0);
1357 /* Note: the BCM5704 has a smaller mbuf space than other chips. */
1359 if (!BGE_IS_5705_PLUS(sc)) {
1360 /* Configure mbuf memory pool */
1361 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1);
1362 if (sc->bge_asicrev == BGE_ASICREV_BCM5704)
1363 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000);
1365 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000);
1367 /* Configure DMA resource pool */
1368 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR,
1369 BGE_DMA_DESCRIPTORS);
1370 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000);
1373 /* Configure mbuf pool watermarks */
1374 if (!BGE_IS_5705_PLUS(sc)) {
1375 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50);
1376 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20);
1377 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1378 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
1379 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1380 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x04);
1381 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x10);
1383 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0);
1384 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10);
1385 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60);
1388 /* Configure DMA resource watermarks */
1389 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5);
1390 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10);
1392 /* Enable buffer manager */
1393 if (!BGE_IS_5705_PLUS(sc)) {
1394 CSR_WRITE_4(sc, BGE_BMAN_MODE,
1395 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN);
1397 /* Poll for buffer manager start indication */
1398 for (i = 0; i < BGE_TIMEOUT; i++) {
1399 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE)
1404 if (i == BGE_TIMEOUT) {
1405 if_printf(&sc->arpcom.ac_if,
1406 "buffer manager failed to start\n");
1411 /* Enable flow-through queues */
1412 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
1413 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
1415 /* Wait until queue initialization is complete */
1416 for (i = 0; i < BGE_TIMEOUT; i++) {
1417 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0)
1422 if (i == BGE_TIMEOUT) {
1423 if_printf(&sc->arpcom.ac_if,
1424 "flow-through queue init failed\n");
1428 /* Initialize the standard RX ring control block */
1429 rcb = &sc->bge_ldata.bge_info.bge_std_rx_rcb;
1430 rcb->bge_hostaddr.bge_addr_lo =
1431 BGE_ADDR_LO(sc->bge_ldata.bge_rx_std_ring_paddr);
1432 rcb->bge_hostaddr.bge_addr_hi =
1433 BGE_ADDR_HI(sc->bge_ldata.bge_rx_std_ring_paddr);
1434 if (BGE_IS_5705_PLUS(sc))
1435 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0);
1437 rcb->bge_maxlen_flags =
1438 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0);
1439 rcb->bge_nicaddr = BGE_STD_RX_RINGS;
1440 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi);
1441 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo);
1442 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags);
1443 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr);
1446 * Initialize the jumbo RX ring control block
1447 * We set the 'ring disabled' bit in the flags
1448 * field until we're actually ready to start
1449 * using this ring (i.e. once we set the MTU
1450 * high enough to require it).
1452 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1453 rcb = &sc->bge_ldata.bge_info.bge_jumbo_rx_rcb;
1455 rcb->bge_hostaddr.bge_addr_lo =
1456 BGE_ADDR_LO(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1457 rcb->bge_hostaddr.bge_addr_hi =
1458 BGE_ADDR_HI(sc->bge_ldata.bge_rx_jumbo_ring_paddr);
1459 rcb->bge_maxlen_flags =
1460 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN,
1461 BGE_RCB_FLAG_RING_DISABLED);
1462 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS;
1463 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI,
1464 rcb->bge_hostaddr.bge_addr_hi);
1465 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO,
1466 rcb->bge_hostaddr.bge_addr_lo);
1467 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS,
1468 rcb->bge_maxlen_flags);
1469 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr);
1471 /* Set up dummy disabled mini ring RCB */
1472 rcb = &sc->bge_ldata.bge_info.bge_mini_rx_rcb;
1473 rcb->bge_maxlen_flags =
1474 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED);
1475 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS,
1476 rcb->bge_maxlen_flags);
1480 * Set the BD ring replentish thresholds. The recommended
1481 * values are 1/8th the number of descriptors allocated to
1484 if (BGE_IS_5705_PLUS(sc))
1487 val = BGE_STD_RX_RING_CNT / 8;
1488 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, val);
1489 if (BGE_IS_JUMBO_CAPABLE(sc)) {
1490 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH,
1491 BGE_JUMBO_RX_RING_CNT/8);
1495 * Disable all unused send rings by setting the 'ring disabled'
1496 * bit in the flags field of all the TX send ring control blocks.
1497 * These are located in NIC memory.
1499 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1500 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) {
1501 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1502 BGE_RCB_MAXLEN_FLAGS(0, BGE_RCB_FLAG_RING_DISABLED));
1503 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1504 vrcb += sizeof(struct bge_rcb);
1507 /* Configure TX RCB 0 (we use only the first ring) */
1508 vrcb = BGE_MEMWIN_START + BGE_SEND_RING_RCB;
1509 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_tx_ring_paddr);
1510 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1511 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1512 RCB_WRITE_4(sc, vrcb, bge_nicaddr,
1513 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT));
1514 if (!BGE_IS_5705_PLUS(sc)) {
1515 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1516 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0));
1519 /* Disable all unused RX return rings */
1520 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1521 for (i = 0; i < BGE_RX_RINGS_MAX; i++) {
1522 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, 0);
1523 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, 0);
1524 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1525 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt,
1526 BGE_RCB_FLAG_RING_DISABLED));
1527 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0);
1528 bge_writembx(sc, BGE_MBX_RX_CONS0_LO +
1529 (i * (sizeof(uint64_t))), 0);
1530 vrcb += sizeof(struct bge_rcb);
1533 /* Initialize RX ring indexes */
1534 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, 0);
1535 if (BGE_IS_JUMBO_CAPABLE(sc))
1536 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0);
1537 bge_writembx(sc, BGE_MBX_RX_MINI_PROD_LO, 0);
1540 * Set up RX return ring 0
1541 * Note that the NIC address for RX return rings is 0x00000000.
1542 * The return rings live entirely within the host, so the
1543 * nicaddr field in the RCB isn't used.
1545 vrcb = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB;
1546 BGE_HOSTADDR(taddr, sc->bge_ldata.bge_rx_return_ring_paddr);
1547 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi);
1548 RCB_WRITE_4(sc, vrcb, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo);
1549 RCB_WRITE_4(sc, vrcb, bge_nicaddr, 0x00000000);
1550 RCB_WRITE_4(sc, vrcb, bge_maxlen_flags,
1551 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0));
1553 /* Set random backoff seed for TX */
1554 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF,
1555 sc->arpcom.ac_enaddr[0] + sc->arpcom.ac_enaddr[1] +
1556 sc->arpcom.ac_enaddr[2] + sc->arpcom.ac_enaddr[3] +
1557 sc->arpcom.ac_enaddr[4] + sc->arpcom.ac_enaddr[5] +
1558 BGE_TX_BACKOFF_SEED_MASK);
1560 /* Set inter-packet gap */
1561 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620);
1564 * Specify which ring to use for packets that don't match
1567 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08);
1570 * Configure number of RX lists. One interrupt distribution
1571 * list, sixteen active lists, one bad frames class.
1573 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181);
1575 /* Inialize RX list placement stats mask. */
1576 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF);
1577 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1);
1579 /* Disable host coalescing until we get it set up */
1580 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000);
1582 /* Poll to make sure it's shut down. */
1583 for (i = 0; i < BGE_TIMEOUT; i++) {
1584 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE))
1589 if (i == BGE_TIMEOUT) {
1590 if_printf(&sc->arpcom.ac_if,
1591 "host coalescing engine failed to idle\n");
1595 /* Set up host coalescing defaults */
1596 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks);
1597 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks);
1598 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds);
1599 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds);
1600 if (!BGE_IS_5705_PLUS(sc)) {
1601 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0);
1602 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0);
1604 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 1);
1605 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 1);
1607 /* Set up address of statistics block */
1608 if (!BGE_IS_5705_PLUS(sc)) {
1609 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI,
1610 BGE_ADDR_HI(sc->bge_ldata.bge_stats_paddr));
1611 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO,
1612 BGE_ADDR_LO(sc->bge_ldata.bge_stats_paddr));
1614 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK);
1615 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK);
1616 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks);
1619 /* Set up address of status block */
1620 bzero(sc->bge_ldata.bge_status_block, BGE_STATUS_BLK_SZ);
1621 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI,
1622 BGE_ADDR_HI(sc->bge_ldata.bge_status_block_paddr));
1623 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO,
1624 BGE_ADDR_LO(sc->bge_ldata.bge_status_block_paddr));
1627 * Set up status block partail update size.
1629 * Because only single TX ring, RX produce ring and Rx return ring
1630 * are used, ask device to update only minimum part of status block
1631 * except for BCM5700 AX/BX, whose status block partial update size
1632 * can't be configured.
1634 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1635 sc->bge_chipid != BGE_CHIPID_BCM5700_C0) {
1636 /* XXX Actually reserved on BCM5700 AX/BX */
1637 val = BGE_STATBLKSZ_FULL;
1639 val = BGE_STATBLKSZ_32BYTE;
1642 /* Turn on host coalescing state machine */
1643 CSR_WRITE_4(sc, BGE_HCC_MODE, val | BGE_HCCMODE_ENABLE);
1645 /* Turn on RX BD completion state machine and enable attentions */
1646 CSR_WRITE_4(sc, BGE_RBDC_MODE,
1647 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN);
1649 /* Turn on RX list placement state machine */
1650 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
1652 /* Turn on RX list selector state machine. */
1653 if (!BGE_IS_5705_PLUS(sc))
1654 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
1656 val = BGE_MACMODE_TXDMA_ENB | BGE_MACMODE_RXDMA_ENB |
1657 BGE_MACMODE_RX_STATS_CLEAR | BGE_MACMODE_TX_STATS_CLEAR |
1658 BGE_MACMODE_RX_STATS_ENB | BGE_MACMODE_TX_STATS_ENB |
1659 BGE_MACMODE_FRMHDR_DMA_ENB;
1661 if (sc->bge_flags & BGE_FLAG_TBI)
1662 val |= BGE_PORTMODE_TBI;
1663 else if (sc->bge_flags & BGE_FLAG_MII_SERDES)
1664 val |= BGE_PORTMODE_GMII;
1666 val |= BGE_PORTMODE_MII;
1668 /* Turn on DMA, clear stats */
1669 CSR_WRITE_4(sc, BGE_MAC_MODE, val);
1671 /* Set misc. local control, enable interrupts on attentions */
1672 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN);
1675 /* Assert GPIO pins for PHY reset */
1676 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0|
1677 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2);
1678 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0|
1679 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2);
1682 /* Turn on DMA completion state machine */
1683 if (!BGE_IS_5705_PLUS(sc))
1684 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
1686 /* Turn on write DMA state machine */
1687 val = BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS;
1688 if (BGE_IS_5755_PLUS(sc)) {
1689 /* Enable host coalescing bug fix. */
1690 val |= BGE_WDMAMODE_STATUS_TAG_FIX;
1692 if (sc->bge_asicrev == BGE_ASICREV_BCM5785) {
1693 /* Request larger DMA burst size to get better performance. */
1694 val |= BGE_WDMAMODE_BURST_ALL_DATA;
1696 CSR_WRITE_4(sc, BGE_WDMA_MODE, val);
1699 if (sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1700 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1701 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1702 sc->bge_asicrev == BGE_ASICREV_BCM57780) {
1704 * Enable fix for read DMA FIFO overruns.
1705 * The fix is to limit the number of RX BDs
1706 * the hardware would fetch at a fime.
1708 val = CSR_READ_4(sc, BGE_RDMA_RSRVCTRL);
1709 CSR_WRITE_4(sc, BGE_RDMA_RSRVCTRL,
1710 val| BGE_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
1713 /* Turn on read DMA state machine */
1714 val = BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS;
1715 if (sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1716 sc->bge_asicrev == BGE_ASICREV_BCM5785 ||
1717 sc->bge_asicrev == BGE_ASICREV_BCM57780)
1718 val |= BGE_RDMAMODE_BD_SBD_CRPT_ATTN |
1719 BGE_RDMAMODE_MBUF_RBD_CRPT_ATTN |
1720 BGE_RDMAMODE_MBUF_SBD_CRPT_ATTN;
1721 if (sc->bge_flags & BGE_FLAG_PCIE)
1722 val |= BGE_RDMAMODE_FIFO_LONG_BURST;
1723 CSR_WRITE_4(sc, BGE_RDMA_MODE, val);
1726 /* Turn on RX data completion state machine */
1727 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
1729 /* Turn on RX BD initiator state machine */
1730 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
1732 /* Turn on RX data and RX BD initiator state machine */
1733 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE);
1735 /* Turn on Mbuf cluster free state machine */
1736 if (!BGE_IS_5705_PLUS(sc))
1737 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
1739 /* Turn on send BD completion state machine */
1740 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
1742 /* Turn on send data completion state machine */
1743 val = BGE_SDCMODE_ENABLE;
1744 if (sc->bge_asicrev == BGE_ASICREV_BCM5761)
1745 val |= BGE_SDCMODE_CDELAY;
1746 CSR_WRITE_4(sc, BGE_SDC_MODE, val);
1748 /* Turn on send data initiator state machine */
1749 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
1751 /* Turn on send BD initiator state machine */
1752 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
1754 /* Turn on send BD selector state machine */
1755 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
1757 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF);
1758 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL,
1759 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER);
1761 /* ack/clear link change events */
1762 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1763 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1764 BGE_MACSTAT_LINK_CHANGED);
1765 CSR_WRITE_4(sc, BGE_MI_STS, 0);
1767 /* Enable PHY auto polling (for MII/GMII only) */
1768 if (sc->bge_flags & BGE_FLAG_TBI) {
1769 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK);
1771 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16);
1772 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
1773 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
1774 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB,
1775 BGE_EVTENB_MI_INTERRUPT);
1780 * Clear any pending link state attention.
1781 * Otherwise some link state change events may be lost until attention
1782 * is cleared by bge_intr() -> bge_softc.bge_link_upd() sequence.
1783 * It's not necessary on newer BCM chips - perhaps enabling link
1784 * state change attentions implies clearing pending attention.
1786 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED|
1787 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE|
1788 BGE_MACSTAT_LINK_CHANGED);
1790 /* Enable link state change attentions. */
1791 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED);
1797 * Probe for a Broadcom chip. Check the PCI vendor and device IDs
1798 * against our list and return its name if we find a match. Note
1799 * that since the Broadcom controller contains VPD support, we
1800 * can get the device name string from the controller itself instead
1801 * of the compiled-in string. This is a little slow, but it guarantees
1802 * we'll always announce the right product name.
1805 bge_probe(device_t dev)
1807 const struct bge_type *t;
1808 uint16_t product, vendor;
1810 product = pci_get_device(dev);
1811 vendor = pci_get_vendor(dev);
1813 for (t = bge_devs; t->bge_name != NULL; t++) {
1814 if (vendor == t->bge_vid && product == t->bge_did)
1817 if (t->bge_name == NULL)
1820 device_set_desc(dev, t->bge_name);
1821 if (pci_get_subvendor(dev) == PCI_VENDOR_DELL) {
1822 struct bge_softc *sc = device_get_softc(dev);
1823 sc->bge_flags |= BGE_FLAG_NO_3LED;
1829 bge_attach(device_t dev)
1832 struct bge_softc *sc;
1835 uint8_t ether_addr[ETHER_ADDR_LEN];
1837 sc = device_get_softc(dev);
1839 callout_init(&sc->bge_stat_timer);
1840 lwkt_serialize_init(&sc->bge_jslot_serializer);
1842 #ifndef BURN_BRIDGES
1843 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
1846 irq = pci_read_config(dev, PCIR_INTLINE, 4);
1847 mem = pci_read_config(dev, BGE_PCI_BAR0, 4);
1849 device_printf(dev, "chip is in D%d power mode "
1850 "-- setting to D0\n", pci_get_powerstate(dev));
1852 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1854 pci_write_config(dev, PCIR_INTLINE, irq, 4);
1855 pci_write_config(dev, BGE_PCI_BAR0, mem, 4);
1857 #endif /* !BURN_BRIDGE */
1860 * Map control/status registers.
1862 pci_enable_busmaster(dev);
1865 sc->bge_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1868 if (sc->bge_res == NULL) {
1869 device_printf(dev, "couldn't map memory\n");
1873 sc->bge_btag = rman_get_bustag(sc->bge_res);
1874 sc->bge_bhandle = rman_get_bushandle(sc->bge_res);
1876 /* Save various chip information */
1878 pci_read_config(dev, BGE_PCI_MISC_CTL, 4) >>
1879 BGE_PCIMISCCTL_ASICREV_SHIFT;
1880 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_USE_PRODID_REG)
1881 sc->bge_chipid = pci_read_config(dev, BGE_PCI_PRODID_ASICREV, 4);
1882 sc->bge_asicrev = BGE_ASICREV(sc->bge_chipid);
1883 sc->bge_chiprev = BGE_CHIPREV(sc->bge_chipid);
1885 /* Save chipset family. */
1886 switch (sc->bge_asicrev) {
1887 case BGE_ASICREV_BCM5755:
1888 case BGE_ASICREV_BCM5761:
1889 case BGE_ASICREV_BCM5784:
1890 case BGE_ASICREV_BCM5785:
1891 case BGE_ASICREV_BCM5787:
1892 case BGE_ASICREV_BCM57780:
1893 sc->bge_flags |= BGE_FLAG_5755_PLUS | BGE_FLAG_575X_PLUS |
1897 case BGE_ASICREV_BCM5700:
1898 case BGE_ASICREV_BCM5701:
1899 case BGE_ASICREV_BCM5703:
1900 case BGE_ASICREV_BCM5704:
1901 sc->bge_flags |= BGE_FLAG_5700_FAMILY | BGE_FLAG_JUMBO;
1904 case BGE_ASICREV_BCM5714_A0:
1905 case BGE_ASICREV_BCM5780:
1906 case BGE_ASICREV_BCM5714:
1907 sc->bge_flags |= BGE_FLAG_5714_FAMILY;
1910 case BGE_ASICREV_BCM5750:
1911 case BGE_ASICREV_BCM5752:
1912 case BGE_ASICREV_BCM5906:
1913 sc->bge_flags |= BGE_FLAG_575X_PLUS;
1916 case BGE_ASICREV_BCM5705:
1917 sc->bge_flags |= BGE_FLAG_5705_PLUS;
1921 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
1922 sc->bge_flags |= BGE_FLAG_NO_EEPROM;
1925 * Set various quirk flags.
1928 sc->bge_flags |= BGE_FLAG_ETH_WIRESPEED;
1929 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
1930 (sc->bge_asicrev == BGE_ASICREV_BCM5705 &&
1931 (sc->bge_chipid != BGE_CHIPID_BCM5705_A0 &&
1932 sc->bge_chipid != BGE_CHIPID_BCM5705_A1)) ||
1933 sc->bge_asicrev == BGE_ASICREV_BCM5906)
1934 sc->bge_flags &= ~BGE_FLAG_ETH_WIRESPEED;
1936 if (sc->bge_chipid == BGE_CHIPID_BCM5701_A0 ||
1937 sc->bge_chipid == BGE_CHIPID_BCM5701_B0)
1938 sc->bge_flags |= BGE_FLAG_CRC_BUG;
1940 if (sc->bge_chiprev == BGE_CHIPREV_5703_AX ||
1941 sc->bge_chiprev == BGE_CHIPREV_5704_AX)
1942 sc->bge_flags |= BGE_FLAG_ADC_BUG;
1944 if (sc->bge_chipid == BGE_CHIPID_BCM5704_A0)
1945 sc->bge_flags |= BGE_FLAG_5704_A0_BUG;
1947 if (BGE_IS_5705_PLUS(sc)) {
1948 if (sc->bge_asicrev == BGE_ASICREV_BCM5755 ||
1949 sc->bge_asicrev == BGE_ASICREV_BCM5761 ||
1950 sc->bge_asicrev == BGE_ASICREV_BCM5784 ||
1951 sc->bge_asicrev == BGE_ASICREV_BCM5787) {
1952 uint32_t product = pci_get_device(dev);
1954 if (product != PCI_PRODUCT_BROADCOM_BCM5722 &&
1955 product != PCI_PRODUCT_BROADCOM_BCM5756)
1956 sc->bge_flags |= BGE_FLAG_JITTER_BUG;
1957 if (product == PCI_PRODUCT_BROADCOM_BCM5755M)
1958 sc->bge_flags |= BGE_FLAG_ADJUST_TRIM;
1959 } else if (sc->bge_asicrev != BGE_ASICREV_BCM5906) {
1960 sc->bge_flags |= BGE_FLAG_BER_BUG;
1964 /* Allocate interrupt */
1967 sc->bge_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
1968 RF_SHAREABLE | RF_ACTIVE);
1970 if (sc->bge_irq == NULL) {
1971 device_printf(dev, "couldn't map interrupt\n");
1977 * Check if this is a PCI-X or PCI Express device.
1979 if (BGE_IS_5705_PLUS(sc)) {
1980 if (pci_is_pcie(dev)) {
1981 sc->bge_flags |= BGE_FLAG_PCIE;
1982 pcie_set_max_readrq(dev, PCIEM_DEVCTL_MAX_READRQ_4096);
1986 * Check if the device is in PCI-X Mode.
1987 * (This bit is not valid on PCI Express controllers.)
1989 if ((pci_read_config(sc->bge_dev, BGE_PCI_PCISTATE, 4) &
1990 BGE_PCISTATE_PCI_BUSMODE) == 0) {
1991 sc->bge_flags |= BGE_FLAG_PCIX;
1992 sc->bge_pcixcap = pci_get_pcixcap_ptr(sc->bge_dev);
1996 device_printf(dev, "CHIP ID 0x%08x; "
1997 "ASIC REV 0x%02x; CHIP REV 0x%02x; %s\n",
1998 sc->bge_chipid, sc->bge_asicrev, sc->bge_chiprev,
1999 (sc->bge_flags & BGE_FLAG_PCIX) ? "PCI-X"
2000 : ((sc->bge_flags & BGE_FLAG_PCIE) ?
2004 * The 40bit DMA bug applies to the 5714/5715 controllers and is
2005 * not actually a MAC controller bug but an issue with the embedded
2006 * PCIe to PCI-X bridge in the device. Use 40bit DMA workaround.
2008 if (BGE_IS_5714_FAMILY(sc) && (sc->bge_flags & BGE_FLAG_PCIX))
2009 sc->bge_flags |= BGE_FLAG_MAXADDR_40BIT;
2011 ifp = &sc->arpcom.ac_if;
2012 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
2014 /* Try to reset the chip. */
2017 if (bge_chipinit(sc)) {
2018 device_printf(dev, "chip initialization failed\n");
2024 * Get station address
2026 error = bge_get_eaddr(sc, ether_addr);
2028 device_printf(dev, "failed to read station address\n");
2032 /* 5705/5750 limits RX return ring to 512 entries. */
2033 if (BGE_IS_5705_PLUS(sc))
2034 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705;
2036 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT;
2038 error = bge_dma_alloc(sc);
2042 /* Set default tuneable values. */
2043 sc->bge_stat_ticks = BGE_TICKS_PER_SEC;
2044 sc->bge_rx_coal_ticks = bge_rx_coal_ticks;
2045 sc->bge_tx_coal_ticks = bge_tx_coal_ticks;
2046 sc->bge_rx_max_coal_bds = bge_rx_max_coal_bds;
2047 sc->bge_tx_max_coal_bds = bge_tx_max_coal_bds;
2049 /* Set up ifnet structure */
2051 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
2052 ifp->if_ioctl = bge_ioctl;
2053 ifp->if_start = bge_start;
2054 #ifdef DEVICE_POLLING
2055 ifp->if_poll = bge_poll;
2057 ifp->if_watchdog = bge_watchdog;
2058 ifp->if_init = bge_init;
2059 ifp->if_mtu = ETHERMTU;
2060 ifp->if_capabilities = IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
2061 ifq_set_maxlen(&ifp->if_snd, BGE_TX_RING_CNT - 1);
2062 ifq_set_ready(&ifp->if_snd);
2065 * 5700 B0 chips do not support checksumming correctly due
2068 if (sc->bge_chipid != BGE_CHIPID_BCM5700_B0) {
2069 ifp->if_capabilities |= IFCAP_HWCSUM;
2070 ifp->if_hwassist = BGE_CSUM_FEATURES;
2072 ifp->if_capenable = ifp->if_capabilities;
2075 * Figure out what sort of media we have by checking the
2076 * hardware config word in the first 32k of NIC internal memory,
2077 * or fall back to examining the EEPROM if necessary.
2078 * Note: on some BCM5700 cards, this value appears to be unset.
2079 * If that's the case, we have to rely on identifying the NIC
2080 * by its PCI subsystem ID, as we do below for the SysKonnect
2083 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER)
2084 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG);
2086 if (bge_read_eeprom(sc, (caddr_t)&hwcfg, BGE_EE_HWCFG_OFFSET,
2088 device_printf(dev, "failed to read EEPROM\n");
2092 hwcfg = ntohl(hwcfg);
2095 /* The SysKonnect SK-9D41 is a 1000baseSX card. */
2096 if (pci_get_subvendor(dev) == PCI_PRODUCT_SCHNEIDERKOCH_SK_9D41 ||
2097 (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) {
2098 if (BGE_IS_5714_FAMILY(sc))
2099 sc->bge_flags |= BGE_FLAG_MII_SERDES;
2101 sc->bge_flags |= BGE_FLAG_TBI;
2105 * Broadcom's own driver always assumes the internal
2106 * PHY is at GMII address 1. On some chips, the PHY responds
2107 * to accesses at all addresses, which could cause us to
2108 * bogusly attach the PHY 32 times at probe type. Always
2109 * restricting the lookup to address 1 is simpler than
2110 * trying to figure out which chips revisions should be
2115 if (sc->bge_flags & BGE_FLAG_TBI) {
2116 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK,
2117 bge_ifmedia_upd, bge_ifmedia_sts);
2118 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
2119 ifmedia_add(&sc->bge_ifmedia,
2120 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
2121 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
2122 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO);
2123 sc->bge_ifmedia.ifm_media = sc->bge_ifmedia.ifm_cur->ifm_media;
2125 struct mii_probe_args mii_args;
2127 mii_probe_args_init(&mii_args, bge_ifmedia_upd, bge_ifmedia_sts);
2128 mii_args.mii_probemask = 1 << sc->bge_phyno;
2130 error = mii_probe(dev, &sc->bge_miibus, &mii_args);
2132 device_printf(dev, "MII without any PHY!\n");
2138 * When using the BCM5701 in PCI-X mode, data corruption has
2139 * been observed in the first few bytes of some received packets.
2140 * Aligning the packet buffer in memory eliminates the corruption.
2141 * Unfortunately, this misaligns the packet payloads. On platforms
2142 * which do not support unaligned accesses, we will realign the
2143 * payloads by copying the received packets.
2145 if (sc->bge_asicrev == BGE_ASICREV_BCM5701 &&
2146 (sc->bge_flags & BGE_FLAG_PCIX))
2147 sc->bge_flags |= BGE_FLAG_RX_ALIGNBUG;
2149 if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
2150 sc->bge_chipid != BGE_CHIPID_BCM5700_B2) {
2151 sc->bge_link_upd = bge_bcm5700_link_upd;
2152 sc->bge_link_chg = BGE_MACSTAT_MI_INTERRUPT;
2153 } else if (sc->bge_flags & BGE_FLAG_TBI) {
2154 sc->bge_link_upd = bge_tbi_link_upd;
2155 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2157 sc->bge_link_upd = bge_copper_link_upd;
2158 sc->bge_link_chg = BGE_MACSTAT_LINK_CHANGED;
2162 * Create sysctl nodes.
2164 sysctl_ctx_init(&sc->bge_sysctl_ctx);
2165 sc->bge_sysctl_tree = SYSCTL_ADD_NODE(&sc->bge_sysctl_ctx,
2166 SYSCTL_STATIC_CHILDREN(_hw),
2168 device_get_nameunit(dev),
2170 if (sc->bge_sysctl_tree == NULL) {
2171 device_printf(dev, "can't add sysctl node\n");
2176 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2177 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2178 OID_AUTO, "rx_coal_ticks",
2179 CTLTYPE_INT | CTLFLAG_RW,
2180 sc, 0, bge_sysctl_rx_coal_ticks, "I",
2181 "Receive coalescing ticks (usec).");
2182 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2183 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2184 OID_AUTO, "tx_coal_ticks",
2185 CTLTYPE_INT | CTLFLAG_RW,
2186 sc, 0, bge_sysctl_tx_coal_ticks, "I",
2187 "Transmit coalescing ticks (usec).");
2188 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2189 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2190 OID_AUTO, "rx_max_coal_bds",
2191 CTLTYPE_INT | CTLFLAG_RW,
2192 sc, 0, bge_sysctl_rx_max_coal_bds, "I",
2193 "Receive max coalesced BD count.");
2194 SYSCTL_ADD_PROC(&sc->bge_sysctl_ctx,
2195 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2196 OID_AUTO, "tx_max_coal_bds",
2197 CTLTYPE_INT | CTLFLAG_RW,
2198 sc, 0, bge_sysctl_tx_max_coal_bds, "I",
2199 "Transmit max coalesced BD count.");
2201 if (sc->bge_flags & BGE_FLAG_PCIE) {
2203 * A common design characteristic for many Broadcom
2204 * client controllers is that they only support a
2205 * single outstanding DMA read operation on the PCIe
2206 * bus. This means that it will take twice as long to
2207 * fetch a TX frame that is split into header and
2208 * payload buffers as it does to fetch a single,
2209 * contiguous TX frame (2 reads vs. 1 read). For these
2210 * controllers, coalescing buffers to reduce the number
2211 * of memory reads is effective way to get maximum
2212 * performance(about 940Mbps). Without collapsing TX
2213 * buffers the maximum TCP bulk transfer performance
2214 * is about 850Mbps. However forcing coalescing mbufs
2215 * consumes a lot of CPU cycles, so leave it off by
2218 SYSCTL_ADD_INT(&sc->bge_sysctl_ctx,
2219 SYSCTL_CHILDREN(sc->bge_sysctl_tree),
2220 OID_AUTO, "force_defrag", CTLFLAG_RW,
2221 &sc->bge_force_defrag, 0,
2222 "Force defragment on TX path");
2226 * Call MI attach routine.
2228 ether_ifattach(ifp, ether_addr, NULL);
2230 error = bus_setup_intr(dev, sc->bge_irq, INTR_MPSAFE,
2231 bge_intr, sc, &sc->bge_intrhand,
2232 ifp->if_serializer);
2234 ether_ifdetach(ifp);
2235 device_printf(dev, "couldn't set up irq\n");
2239 ifp->if_cpuid = rman_get_cpuid(sc->bge_irq);
2240 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
2249 bge_detach(device_t dev)
2251 struct bge_softc *sc = device_get_softc(dev);
2253 if (device_is_attached(dev)) {
2254 struct ifnet *ifp = &sc->arpcom.ac_if;
2256 lwkt_serialize_enter(ifp->if_serializer);
2259 bus_teardown_intr(dev, sc->bge_irq, sc->bge_intrhand);
2260 lwkt_serialize_exit(ifp->if_serializer);
2262 ether_ifdetach(ifp);
2265 if (sc->bge_flags & BGE_FLAG_TBI)
2266 ifmedia_removeall(&sc->bge_ifmedia);
2268 device_delete_child(dev, sc->bge_miibus);
2269 bus_generic_detach(dev);
2271 if (sc->bge_irq != NULL)
2272 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->bge_irq);
2274 if (sc->bge_res != NULL)
2275 bus_release_resource(dev, SYS_RES_MEMORY,
2276 BGE_PCI_BAR0, sc->bge_res);
2278 if (sc->bge_sysctl_tree != NULL)
2279 sysctl_ctx_free(&sc->bge_sysctl_ctx);
2287 bge_reset(struct bge_softc *sc)
2290 uint32_t cachesize, command, pcistate, reset;
2291 void (*write_op)(struct bge_softc *, uint32_t, uint32_t);
2296 if (BGE_IS_575X_PLUS(sc) && !BGE_IS_5714_FAMILY(sc) &&
2297 sc->bge_asicrev != BGE_ASICREV_BCM5906) {
2298 if (sc->bge_flags & BGE_FLAG_PCIE)
2299 write_op = bge_writemem_direct;
2301 write_op = bge_writemem_ind;
2303 write_op = bge_writereg_ind;
2306 /* Save some important PCI state. */
2307 cachesize = pci_read_config(dev, BGE_PCI_CACHESZ, 4);
2308 command = pci_read_config(dev, BGE_PCI_CMD, 4);
2309 pcistate = pci_read_config(dev, BGE_PCI_PCISTATE, 4);
2311 pci_write_config(dev, BGE_PCI_MISC_CTL,
2312 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2313 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2315 /* Disable fastboot on controllers that support it. */
2316 if (sc->bge_asicrev == BGE_ASICREV_BCM5752 ||
2317 BGE_IS_5755_PLUS(sc)) {
2319 if_printf(&sc->arpcom.ac_if, "Disabling fastboot\n");
2320 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0x0);
2324 * Write the magic number to SRAM at offset 0xB50.
2325 * When firmware finishes its initialization it will
2326 * write ~BGE_MAGIC_NUMBER to the same location.
2328 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER);
2330 reset = BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1);
2332 /* XXX: Broadcom Linux driver. */
2333 if (sc->bge_flags & BGE_FLAG_PCIE) {
2334 if (CSR_READ_4(sc, 0x7e2c) == 0x60) /* PCIE 1.0 */
2335 CSR_WRITE_4(sc, 0x7e2c, 0x20);
2336 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
2337 /* Prevent PCIE link training during global reset */
2338 CSR_WRITE_4(sc, BGE_MISC_CFG, (1<<29));
2344 * Set GPHY Power Down Override to leave GPHY
2345 * powered up in D0 uninitialized.
2347 if (BGE_IS_5705_PLUS(sc))
2348 reset |= BGE_MISCCFG_GPHY_PD_OVERRIDE;
2350 /* Issue global reset */
2351 write_op(sc, BGE_MISC_CFG, reset);
2353 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2354 uint32_t status, ctrl;
2356 status = CSR_READ_4(sc, BGE_VCPU_STATUS);
2357 CSR_WRITE_4(sc, BGE_VCPU_STATUS,
2358 status | BGE_VCPU_STATUS_DRV_RESET);
2359 ctrl = CSR_READ_4(sc, BGE_VCPU_EXT_CTRL);
2360 CSR_WRITE_4(sc, BGE_VCPU_EXT_CTRL,
2361 ctrl & ~BGE_VCPU_EXT_CTRL_HALT_CPU);
2366 /* XXX: Broadcom Linux driver. */
2367 if (sc->bge_flags & BGE_FLAG_PCIE) {
2368 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) {
2371 DELAY(500000); /* wait for link training to complete */
2372 v = pci_read_config(dev, 0xc4, 4);
2373 pci_write_config(dev, 0xc4, v | (1<<15), 4);
2376 * Set PCIE max payload size to 128 bytes and
2377 * clear error status.
2379 pci_write_config(dev, 0xd8, 0xf5000, 4);
2382 /* Reset some of the PCI state that got zapped by reset */
2383 pci_write_config(dev, BGE_PCI_MISC_CTL,
2384 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR|
2385 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW, 4);
2386 pci_write_config(dev, BGE_PCI_CACHESZ, cachesize, 4);
2387 pci_write_config(dev, BGE_PCI_CMD, command, 4);
2388 write_op(sc, BGE_MISC_CFG, (65 << 1));
2391 * Disable PCI-X relaxed ordering to ensure status block update
2392 * comes first then packet buffer DMA. Otherwise driver may
2393 * read stale status block.
2395 if (sc->bge_flags & BGE_FLAG_PCIX) {
2398 devctl = pci_read_config(dev,
2399 sc->bge_pcixcap + PCIXR_COMMAND, 2);
2400 devctl &= ~PCIXM_COMMAND_ERO;
2401 if (sc->bge_asicrev == BGE_ASICREV_BCM5703) {
2402 devctl &= ~PCIXM_COMMAND_MAX_READ;
2403 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2404 } else if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
2405 devctl &= ~(PCIXM_COMMAND_MAX_SPLITS |
2406 PCIXM_COMMAND_MAX_READ);
2407 devctl |= PCIXM_COMMAND_MAX_READ_2048;
2409 pci_write_config(dev, sc->bge_pcixcap + PCIXR_COMMAND,
2413 /* Enable memory arbiter. */
2414 if (BGE_IS_5714_FAMILY(sc)) {
2417 val = CSR_READ_4(sc, BGE_MARB_MODE);
2418 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | val);
2420 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
2423 if (sc->bge_asicrev == BGE_ASICREV_BCM5906) {
2424 for (i = 0; i < BGE_TIMEOUT; i++) {
2425 val = CSR_READ_4(sc, BGE_VCPU_STATUS);
2426 if (val & BGE_VCPU_STATUS_INIT_DONE)
2430 if (i == BGE_TIMEOUT) {
2431 if_printf(&sc->arpcom.ac_if, "reset timed out\n");
2436 * Poll until we see the 1's complement of the magic number.
2437 * This indicates that the firmware initialization
2440 for (i = 0; i < BGE_FIRMWARE_TIMEOUT; i++) {
2441 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM);
2442 if (val == ~BGE_MAGIC_NUMBER)
2446 if (i == BGE_FIRMWARE_TIMEOUT) {
2447 if_printf(&sc->arpcom.ac_if, "firmware handshake "
2448 "timed out, found 0x%08x\n", val);
2454 * XXX Wait for the value of the PCISTATE register to
2455 * return to its original pre-reset state. This is a
2456 * fairly good indicator of reset completion. If we don't
2457 * wait for the reset to fully complete, trying to read
2458 * from the device's non-PCI registers may yield garbage
2461 for (i = 0; i < BGE_TIMEOUT; i++) {
2462 if (pci_read_config(dev, BGE_PCI_PCISTATE, 4) == pcistate)
2467 /* Fix up byte swapping */
2468 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS |
2469 BGE_MODECTL_BYTESWAP_DATA);
2471 CSR_WRITE_4(sc, BGE_MAC_MODE, 0);
2474 * The 5704 in TBI mode apparently needs some special
2475 * adjustment to insure the SERDES drive level is set
2478 if (sc->bge_asicrev == BGE_ASICREV_BCM5704 &&
2479 (sc->bge_flags & BGE_FLAG_TBI)) {
2482 serdescfg = CSR_READ_4(sc, BGE_SERDES_CFG);
2483 serdescfg = (serdescfg & ~0xFFF) | 0x880;
2484 CSR_WRITE_4(sc, BGE_SERDES_CFG, serdescfg);
2487 /* XXX: Broadcom Linux driver. */
2488 if ((sc->bge_flags & BGE_FLAG_PCIE) &&
2489 sc->bge_chipid != BGE_CHIPID_BCM5750_A0 &&
2490 sc->bge_asicrev != BGE_ASICREV_BCM5785) {
2493 /* Enable Data FIFO protection. */
2494 v = CSR_READ_4(sc, 0x7c00);
2495 CSR_WRITE_4(sc, 0x7c00, v | (1<<25));
2502 * Frame reception handling. This is called if there's a frame
2503 * on the receive return list.
2505 * Note: we have to be able to handle two possibilities here:
2506 * 1) the frame is from the jumbo recieve ring
2507 * 2) the frame is from the standard receive ring
2511 bge_rxeof(struct bge_softc *sc)
2514 int stdcnt = 0, jumbocnt = 0;
2516 if (sc->bge_rx_saved_considx ==
2517 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx)
2520 ifp = &sc->arpcom.ac_if;
2522 while (sc->bge_rx_saved_considx !=
2523 sc->bge_ldata.bge_status_block->bge_idx[0].bge_rx_prod_idx) {
2524 struct bge_rx_bd *cur_rx;
2526 struct mbuf *m = NULL;
2527 uint16_t vlan_tag = 0;
2531 &sc->bge_ldata.bge_rx_return_ring[sc->bge_rx_saved_considx];
2533 rxidx = cur_rx->bge_idx;
2534 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt);
2537 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) {
2539 vlan_tag = cur_rx->bge_vlan_tag;
2542 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) {
2543 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT);
2546 if (rxidx != sc->bge_jumbo) {
2548 if_printf(ifp, "sw jumbo index(%d) "
2549 "and hw jumbo index(%d) mismatch, drop!\n",
2550 sc->bge_jumbo, rxidx);
2551 bge_setup_rxdesc_jumbo(sc, rxidx);
2555 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx].bge_mbuf;
2556 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2558 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2561 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 0)) {
2563 bge_setup_rxdesc_jumbo(sc, sc->bge_jumbo);
2567 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT);
2570 if (rxidx != sc->bge_std) {
2572 if_printf(ifp, "sw std index(%d) "
2573 "and hw std index(%d) mismatch, drop!\n",
2574 sc->bge_std, rxidx);
2575 bge_setup_rxdesc_std(sc, rxidx);
2579 m = sc->bge_cdata.bge_rx_std_chain[rxidx].bge_mbuf;
2580 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) {
2582 bge_setup_rxdesc_std(sc, sc->bge_std);
2585 if (bge_newbuf_std(sc, sc->bge_std, 0)) {
2587 bge_setup_rxdesc_std(sc, sc->bge_std);
2593 #if !defined(__i386__) && !defined(__x86_64__)
2595 * The x86 allows unaligned accesses, but for other
2596 * platforms we must make sure the payload is aligned.
2598 if (sc->bge_flags & BGE_FLAG_RX_ALIGNBUG) {
2599 bcopy(m->m_data, m->m_data + ETHER_ALIGN,
2601 m->m_data += ETHER_ALIGN;
2604 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN;
2605 m->m_pkthdr.rcvif = ifp;
2607 if (ifp->if_capenable & IFCAP_RXCSUM) {
2608 if (cur_rx->bge_flags & BGE_RXBDFLAG_IP_CSUM) {
2609 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2610 if ((cur_rx->bge_ip_csum ^ 0xffff) == 0)
2611 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2613 if ((cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) &&
2614 m->m_pkthdr.len >= BGE_MIN_FRAME) {
2615 m->m_pkthdr.csum_data =
2616 cur_rx->bge_tcp_udp_csum;
2617 m->m_pkthdr.csum_flags |=
2618 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
2623 * If we received a packet with a vlan tag, pass it
2624 * to vlan_input() instead of ether_input().
2627 m->m_flags |= M_VLANTAG;
2628 m->m_pkthdr.ether_vlantag = vlan_tag;
2629 have_tag = vlan_tag = 0;
2631 ifp->if_input(ifp, m);
2634 bge_writembx(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx);
2636 bge_writembx(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std);
2638 bge_writembx(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo);
2642 bge_txeof(struct bge_softc *sc)
2644 struct bge_tx_bd *cur_tx = NULL;
2647 if (sc->bge_tx_saved_considx ==
2648 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx)
2651 ifp = &sc->arpcom.ac_if;
2654 * Go through our tx ring and free mbufs for those
2655 * frames that have been sent.
2657 while (sc->bge_tx_saved_considx !=
2658 sc->bge_ldata.bge_status_block->bge_idx[0].bge_tx_cons_idx) {
2661 idx = sc->bge_tx_saved_considx;
2662 cur_tx = &sc->bge_ldata.bge_tx_ring[idx];
2663 if (cur_tx->bge_flags & BGE_TXBDFLAG_END)
2665 if (sc->bge_cdata.bge_tx_chain[idx] != NULL) {
2666 bus_dmamap_unload(sc->bge_cdata.bge_tx_mtag,
2667 sc->bge_cdata.bge_tx_dmamap[idx]);
2668 m_freem(sc->bge_cdata.bge_tx_chain[idx]);
2669 sc->bge_cdata.bge_tx_chain[idx] = NULL;
2672 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT);
2676 if (cur_tx != NULL &&
2677 (BGE_TX_RING_CNT - sc->bge_txcnt) >=
2678 (BGE_NSEG_RSVD + BGE_NSEG_SPARE))
2679 ifp->if_flags &= ~IFF_OACTIVE;
2681 if (sc->bge_txcnt == 0)
2684 if (!ifq_is_empty(&ifp->if_snd))
2688 #ifdef DEVICE_POLLING
2691 bge_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
2693 struct bge_softc *sc = ifp->if_softc;
2698 bge_disable_intr(sc);
2700 case POLL_DEREGISTER:
2701 bge_enable_intr(sc);
2703 case POLL_AND_CHECK_STATUS:
2705 * Process link state changes.
2707 status = CSR_READ_4(sc, BGE_MAC_STS);
2708 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2709 sc->bge_link_evt = 0;
2710 sc->bge_link_upd(sc, status);
2714 if (ifp->if_flags & IFF_RUNNING) {
2727 struct bge_softc *sc = xsc;
2728 struct ifnet *ifp = &sc->arpcom.ac_if;
2734 * Ack the interrupt by writing something to BGE_MBX_IRQ0_LO. Don't
2735 * disable interrupts by writing nonzero like we used to, since with
2736 * our current organization this just gives complications and
2737 * pessimizations for re-enabling interrupts. We used to have races
2738 * instead of the necessary complications. Disabling interrupts
2739 * would just reduce the chance of a status update while we are
2740 * running (by switching to the interrupt-mode coalescence
2741 * parameters), but this chance is already very low so it is more
2742 * efficient to get another interrupt than prevent it.
2744 * We do the ack first to ensure another interrupt if there is a
2745 * status update after the ack. We don't check for the status
2746 * changing later because it is more efficient to get another
2747 * interrupt than prevent it, not quite as above (not checking is
2748 * a smaller optimization than not toggling the interrupt enable,
2749 * since checking doesn't involve PCI accesses and toggling require
2750 * the status check). So toggling would probably be a pessimization
2751 * even with MSI. It would only be needed for using a task queue.
2753 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
2756 * Process link state changes.
2758 status = CSR_READ_4(sc, BGE_MAC_STS);
2759 if ((status & sc->bge_link_chg) || sc->bge_link_evt) {
2760 sc->bge_link_evt = 0;
2761 sc->bge_link_upd(sc, status);
2764 if (ifp->if_flags & IFF_RUNNING) {
2765 /* Check RX return ring producer/consumer */
2768 /* Check TX ring producer/consumer */
2772 if (sc->bge_coal_chg)
2773 bge_coal_change(sc);
2779 struct bge_softc *sc = xsc;
2780 struct ifnet *ifp = &sc->arpcom.ac_if;
2782 lwkt_serialize_enter(ifp->if_serializer);
2784 if (BGE_IS_5705_PLUS(sc))
2785 bge_stats_update_regs(sc);
2787 bge_stats_update(sc);
2789 if (sc->bge_flags & BGE_FLAG_TBI) {
2791 * Since in TBI mode auto-polling can't be used we should poll
2792 * link status manually. Here we register pending link event
2793 * and trigger interrupt.
2796 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
2797 } else if (!sc->bge_link) {
2798 mii_tick(device_get_softc(sc->bge_miibus));
2801 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
2803 lwkt_serialize_exit(ifp->if_serializer);
2807 bge_stats_update_regs(struct bge_softc *sc)
2809 struct ifnet *ifp = &sc->arpcom.ac_if;
2810 struct bge_mac_stats_regs stats;
2814 s = (uint32_t *)&stats;
2815 for (i = 0; i < sizeof(struct bge_mac_stats_regs); i += 4) {
2816 *s = CSR_READ_4(sc, BGE_RX_STATS + i);
2820 ifp->if_collisions +=
2821 (stats.dot3StatsSingleCollisionFrames +
2822 stats.dot3StatsMultipleCollisionFrames +
2823 stats.dot3StatsExcessiveCollisions +
2824 stats.dot3StatsLateCollisions) -
2829 bge_stats_update(struct bge_softc *sc)
2831 struct ifnet *ifp = &sc->arpcom.ac_if;
2834 stats = BGE_MEMWIN_START + BGE_STATS_BLOCK;
2836 #define READ_STAT(sc, stats, stat) \
2837 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat))
2839 ifp->if_collisions +=
2840 (READ_STAT(sc, stats,
2841 txstats.dot3StatsSingleCollisionFrames.bge_addr_lo) +
2842 READ_STAT(sc, stats,
2843 txstats.dot3StatsMultipleCollisionFrames.bge_addr_lo) +
2844 READ_STAT(sc, stats,
2845 txstats.dot3StatsExcessiveCollisions.bge_addr_lo) +
2846 READ_STAT(sc, stats,
2847 txstats.dot3StatsLateCollisions.bge_addr_lo)) -
2853 ifp->if_collisions +=
2854 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames +
2855 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames +
2856 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions +
2857 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) -
2863 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
2864 * pointers to descriptors.
2867 bge_encap(struct bge_softc *sc, struct mbuf **m_head0, uint32_t *txidx)
2869 struct bge_tx_bd *d = NULL;
2870 uint16_t csum_flags = 0;
2871 bus_dma_segment_t segs[BGE_NSEG_NEW];
2873 int error, maxsegs, nsegs, idx, i;
2874 struct mbuf *m_head = *m_head0;
2876 if (m_head->m_pkthdr.csum_flags) {
2877 if (m_head->m_pkthdr.csum_flags & CSUM_IP)
2878 csum_flags |= BGE_TXBDFLAG_IP_CSUM;
2879 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
2880 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM;
2881 if (m_head->m_flags & M_LASTFRAG)
2882 csum_flags |= BGE_TXBDFLAG_IP_FRAG_END;
2883 else if (m_head->m_flags & M_FRAG)
2884 csum_flags |= BGE_TXBDFLAG_IP_FRAG;
2888 map = sc->bge_cdata.bge_tx_dmamap[idx];
2890 maxsegs = (BGE_TX_RING_CNT - sc->bge_txcnt) - BGE_NSEG_RSVD;
2891 KASSERT(maxsegs >= BGE_NSEG_SPARE,
2892 ("not enough segments %d", maxsegs));
2894 if (maxsegs > BGE_NSEG_NEW)
2895 maxsegs = BGE_NSEG_NEW;
2898 * Pad outbound frame to BGE_MIN_FRAME for an unusual reason.
2899 * The bge hardware will pad out Tx runts to BGE_MIN_FRAME,
2900 * but when such padded frames employ the bge IP/TCP checksum
2901 * offload, the hardware checksum assist gives incorrect results
2902 * (possibly from incorporating its own padding into the UDP/TCP
2903 * checksum; who knows). If we pad such runts with zeros, the
2904 * onboard checksum comes out correct.
2906 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) &&
2907 m_head->m_pkthdr.len < BGE_MIN_FRAME) {
2908 error = m_devpad(m_head, BGE_MIN_FRAME);
2913 if (sc->bge_force_defrag && (sc->bge_flags & BGE_FLAG_PCIE) &&
2914 m_head->m_next != NULL) {
2918 * Forcefully defragment mbuf chain to overcome hardware
2919 * limitation which only support a single outstanding
2920 * DMA read operation. If it fails, keep moving on using
2921 * the original mbuf chain.
2923 m_new = m_defrag(m_head, MB_DONTWAIT);
2925 *m_head0 = m_head = m_new;
2928 error = bus_dmamap_load_mbuf_defrag(sc->bge_cdata.bge_tx_mtag, map,
2929 m_head0, segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
2934 bus_dmamap_sync(sc->bge_cdata.bge_tx_mtag, map, BUS_DMASYNC_PREWRITE);
2936 for (i = 0; ; i++) {
2937 d = &sc->bge_ldata.bge_tx_ring[idx];
2939 d->bge_addr.bge_addr_lo = BGE_ADDR_LO(segs[i].ds_addr);
2940 d->bge_addr.bge_addr_hi = BGE_ADDR_HI(segs[i].ds_addr);
2941 d->bge_len = segs[i].ds_len;
2942 d->bge_flags = csum_flags;
2946 BGE_INC(idx, BGE_TX_RING_CNT);
2948 /* Mark the last segment as end of packet... */
2949 d->bge_flags |= BGE_TXBDFLAG_END;
2951 /* Set vlan tag to the first segment of the packet. */
2952 d = &sc->bge_ldata.bge_tx_ring[*txidx];
2953 if (m_head->m_flags & M_VLANTAG) {
2954 d->bge_flags |= BGE_TXBDFLAG_VLAN_TAG;
2955 d->bge_vlan_tag = m_head->m_pkthdr.ether_vlantag;
2957 d->bge_vlan_tag = 0;
2961 * Insure that the map for this transmission is placed at
2962 * the array index of the last descriptor in this chain.
2964 sc->bge_cdata.bge_tx_dmamap[*txidx] = sc->bge_cdata.bge_tx_dmamap[idx];
2965 sc->bge_cdata.bge_tx_dmamap[idx] = map;
2966 sc->bge_cdata.bge_tx_chain[idx] = m_head;
2967 sc->bge_txcnt += nsegs;
2969 BGE_INC(idx, BGE_TX_RING_CNT);
2980 * Main transmit routine. To avoid having to do mbuf copies, we put pointers
2981 * to the mbuf data regions directly in the transmit descriptors.
2984 bge_start(struct ifnet *ifp)
2986 struct bge_softc *sc = ifp->if_softc;
2987 struct mbuf *m_head = NULL;
2991 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
2994 prodidx = sc->bge_tx_prodidx;
2997 while (sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
2998 m_head = ifq_dequeue(&ifp->if_snd, NULL);
3004 * The code inside the if() block is never reached since we
3005 * must mark CSUM_IP_FRAGS in our if_hwassist to start getting
3006 * requests to checksum TCP/UDP in a fragmented packet.
3009 * safety overkill. If this is a fragmented packet chain
3010 * with delayed TCP/UDP checksums, then only encapsulate
3011 * it if we have enough descriptors to handle the entire
3013 * (paranoia -- may not actually be needed)
3015 if ((m_head->m_flags & M_FIRSTFRAG) &&
3016 (m_head->m_pkthdr.csum_flags & CSUM_DELAY_DATA)) {
3017 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3018 m_head->m_pkthdr.csum_data + BGE_NSEG_RSVD) {
3019 ifp->if_flags |= IFF_OACTIVE;
3020 ifq_prepend(&ifp->if_snd, m_head);
3026 * Sanity check: avoid coming within BGE_NSEG_RSVD
3027 * descriptors of the end of the ring. Also make
3028 * sure there are BGE_NSEG_SPARE descriptors for
3029 * jumbo buffers' defragmentation.
3031 if ((BGE_TX_RING_CNT - sc->bge_txcnt) <
3032 (BGE_NSEG_RSVD + BGE_NSEG_SPARE)) {
3033 ifp->if_flags |= IFF_OACTIVE;
3034 ifq_prepend(&ifp->if_snd, m_head);
3039 * Pack the data into the transmit ring. If we
3040 * don't have room, set the OACTIVE flag and wait
3041 * for the NIC to drain the ring.
3043 if (bge_encap(sc, &m_head, &prodidx)) {
3044 ifp->if_flags |= IFF_OACTIVE;
3050 ETHER_BPF_MTAP(ifp, m_head);
3057 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3058 /* 5700 b2 errata */
3059 if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
3060 bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
3062 sc->bge_tx_prodidx = prodidx;
3065 * Set a timeout in case the chip goes out to lunch.
3073 struct bge_softc *sc = xsc;
3074 struct ifnet *ifp = &sc->arpcom.ac_if;
3077 ASSERT_SERIALIZED(ifp->if_serializer);
3079 /* Cancel pending I/O and flush buffers. */
3085 * Init the various state machines, ring
3086 * control blocks and firmware.
3088 if (bge_blockinit(sc)) {
3089 if_printf(ifp, "initialization failure\n");
3095 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu +
3096 ETHER_HDR_LEN + ETHER_CRC_LEN + EVL_ENCAPLEN);
3098 /* Load our MAC address. */
3099 m = (uint16_t *)&sc->arpcom.ac_enaddr[0];
3100 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
3101 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
3103 /* Enable or disable promiscuous mode as needed. */
3106 /* Program multicast filter. */
3110 if (bge_init_rx_ring_std(sc)) {
3111 if_printf(ifp, "RX ring initialization failed\n");
3117 * Workaround for a bug in 5705 ASIC rev A0. Poll the NIC's
3118 * memory to insure that the chip has in fact read the first
3119 * entry of the ring.
3121 if (sc->bge_chipid == BGE_CHIPID_BCM5705_A0) {
3123 for (i = 0; i < 10; i++) {
3125 v = bge_readmem_ind(sc, BGE_STD_RX_RINGS + 8);
3126 if (v == (MCLBYTES - ETHER_ALIGN))
3130 if_printf(ifp, "5705 A0 chip failed to load RX ring\n");
3133 /* Init jumbo RX ring. */
3134 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) {
3135 if (bge_init_rx_ring_jumbo(sc)) {
3136 if_printf(ifp, "Jumbo RX ring initialization failed\n");
3142 /* Init our RX return ring index */
3143 sc->bge_rx_saved_considx = 0;
3146 bge_init_tx_ring(sc);
3148 /* Turn on transmitter */
3149 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE);
3151 /* Turn on receiver */
3152 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3155 * Set the number of good frames to receive after RX MBUF
3156 * Low Watermark has been reached. After the RX MAC receives
3157 * this number of frames, it will drop subsequent incoming
3158 * frames until the MBUF High Watermark is reached.
3160 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2);
3162 /* Tell firmware we're alive. */
3163 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3165 /* Enable host interrupts if polling(4) is not enabled. */
3166 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA);
3167 #ifdef DEVICE_POLLING
3168 if (ifp->if_flags & IFF_POLLING)
3169 bge_disable_intr(sc);
3172 bge_enable_intr(sc);
3174 bge_ifmedia_upd(ifp);
3176 ifp->if_flags |= IFF_RUNNING;
3177 ifp->if_flags &= ~IFF_OACTIVE;
3179 callout_reset(&sc->bge_stat_timer, hz, bge_tick, sc);
3183 * Set media options.
3186 bge_ifmedia_upd(struct ifnet *ifp)
3188 struct bge_softc *sc = ifp->if_softc;
3190 /* If this is a 1000baseX NIC, enable the TBI port. */
3191 if (sc->bge_flags & BGE_FLAG_TBI) {
3192 struct ifmedia *ifm = &sc->bge_ifmedia;
3194 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
3197 switch(IFM_SUBTYPE(ifm->ifm_media)) {
3200 * The BCM5704 ASIC appears to have a special
3201 * mechanism for programming the autoneg
3202 * advertisement registers in TBI mode.
3204 if (!bge_fake_autoneg &&
3205 sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3208 CSR_WRITE_4(sc, BGE_TX_TBI_AUTONEG, 0);
3209 sgdig = CSR_READ_4(sc, BGE_SGDIG_CFG);
3210 sgdig |= BGE_SGDIGCFG_AUTO |
3211 BGE_SGDIGCFG_PAUSE_CAP |
3212 BGE_SGDIGCFG_ASYM_PAUSE;
3213 CSR_WRITE_4(sc, BGE_SGDIG_CFG,
3214 sgdig | BGE_SGDIGCFG_SEND);
3216 CSR_WRITE_4(sc, BGE_SGDIG_CFG, sgdig);
3220 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
3221 BGE_CLRBIT(sc, BGE_MAC_MODE,
3222 BGE_MACMODE_HALF_DUPLEX);
3224 BGE_SETBIT(sc, BGE_MAC_MODE,
3225 BGE_MACMODE_HALF_DUPLEX);
3232 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3236 if (mii->mii_instance) {
3237 struct mii_softc *miisc;
3239 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
3240 mii_phy_reset(miisc);
3248 * Report current media status.
3251 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
3253 struct bge_softc *sc = ifp->if_softc;
3255 if (sc->bge_flags & BGE_FLAG_TBI) {
3256 ifmr->ifm_status = IFM_AVALID;
3257 ifmr->ifm_active = IFM_ETHER;
3258 if (CSR_READ_4(sc, BGE_MAC_STS) &
3259 BGE_MACSTAT_TBI_PCS_SYNCHED) {
3260 ifmr->ifm_status |= IFM_ACTIVE;
3262 ifmr->ifm_active |= IFM_NONE;
3266 ifmr->ifm_active |= IFM_1000_SX;
3267 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX)
3268 ifmr->ifm_active |= IFM_HDX;
3270 ifmr->ifm_active |= IFM_FDX;
3272 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3275 ifmr->ifm_active = mii->mii_media_active;
3276 ifmr->ifm_status = mii->mii_media_status;
3281 bge_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
3283 struct bge_softc *sc = ifp->if_softc;
3284 struct ifreq *ifr = (struct ifreq *)data;
3285 int mask, error = 0;
3287 ASSERT_SERIALIZED(ifp->if_serializer);
3291 if ((!BGE_IS_JUMBO_CAPABLE(sc) && ifr->ifr_mtu > ETHERMTU) ||
3292 (BGE_IS_JUMBO_CAPABLE(sc) &&
3293 ifr->ifr_mtu > BGE_JUMBO_MTU)) {
3295 } else if (ifp->if_mtu != ifr->ifr_mtu) {
3296 ifp->if_mtu = ifr->ifr_mtu;
3297 if (ifp->if_flags & IFF_RUNNING)
3302 if (ifp->if_flags & IFF_UP) {
3303 if (ifp->if_flags & IFF_RUNNING) {
3304 mask = ifp->if_flags ^ sc->bge_if_flags;
3307 * If only the state of the PROMISC flag
3308 * changed, then just use the 'set promisc
3309 * mode' command instead of reinitializing
3310 * the entire NIC. Doing a full re-init
3311 * means reloading the firmware and waiting
3312 * for it to start up, which may take a
3313 * second or two. Similarly for ALLMULTI.
3315 if (mask & IFF_PROMISC)
3317 if (mask & IFF_ALLMULTI)
3322 } else if (ifp->if_flags & IFF_RUNNING) {
3325 sc->bge_if_flags = ifp->if_flags;
3329 if (ifp->if_flags & IFF_RUNNING)
3334 if (sc->bge_flags & BGE_FLAG_TBI) {
3335 error = ifmedia_ioctl(ifp, ifr,
3336 &sc->bge_ifmedia, command);
3338 struct mii_data *mii;
3340 mii = device_get_softc(sc->bge_miibus);
3341 error = ifmedia_ioctl(ifp, ifr,
3342 &mii->mii_media, command);
3346 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
3347 if (mask & IFCAP_HWCSUM) {
3348 ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
3349 if (IFCAP_HWCSUM & ifp->if_capenable)
3350 ifp->if_hwassist = BGE_CSUM_FEATURES;
3352 ifp->if_hwassist = 0;
3356 error = ether_ioctl(ifp, command, data);
3363 bge_watchdog(struct ifnet *ifp)
3365 struct bge_softc *sc = ifp->if_softc;
3367 if_printf(ifp, "watchdog timeout -- resetting\n");
3373 if (!ifq_is_empty(&ifp->if_snd))
3378 * Stop the adapter and free any mbufs allocated to the
3382 bge_stop(struct bge_softc *sc)
3384 struct ifnet *ifp = &sc->arpcom.ac_if;
3386 ASSERT_SERIALIZED(ifp->if_serializer);
3388 callout_stop(&sc->bge_stat_timer);
3391 * Disable all of the receiver blocks
3393 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE);
3394 BGE_CLRBIT(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE);
3395 BGE_CLRBIT(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE);
3396 if (!BGE_IS_5705_PLUS(sc))
3397 BGE_CLRBIT(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE);
3398 BGE_CLRBIT(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE);
3399 BGE_CLRBIT(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE);
3400 BGE_CLRBIT(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE);
3403 * Disable all of the transmit blocks
3405 BGE_CLRBIT(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE);
3406 BGE_CLRBIT(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE);
3407 BGE_CLRBIT(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE);
3408 BGE_CLRBIT(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE);
3409 BGE_CLRBIT(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE);
3410 if (!BGE_IS_5705_PLUS(sc))
3411 BGE_CLRBIT(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE);
3412 BGE_CLRBIT(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE);
3415 * Shut down all of the memory managers and related
3418 BGE_CLRBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE);
3419 BGE_CLRBIT(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE);
3420 if (!BGE_IS_5705_PLUS(sc))
3421 BGE_CLRBIT(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE);
3422 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF);
3423 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0);
3424 if (!BGE_IS_5705_PLUS(sc)) {
3425 BGE_CLRBIT(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE);
3426 BGE_CLRBIT(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE);
3429 /* Disable host interrupts. */
3430 bge_disable_intr(sc);
3433 * Tell firmware we're shutting down.
3435 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP);
3437 /* Free the RX lists. */
3438 bge_free_rx_ring_std(sc);
3440 /* Free jumbo RX list. */
3441 if (BGE_IS_JUMBO_CAPABLE(sc))
3442 bge_free_rx_ring_jumbo(sc);
3444 /* Free TX buffers. */
3445 bge_free_tx_ring(sc);
3448 sc->bge_coal_chg = 0;
3450 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET;
3452 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3457 * Stop all chip I/O so that the kernel's probe routines don't
3458 * get confused by errant DMAs when rebooting.
3461 bge_shutdown(device_t dev)
3463 struct bge_softc *sc = device_get_softc(dev);
3464 struct ifnet *ifp = &sc->arpcom.ac_if;
3466 lwkt_serialize_enter(ifp->if_serializer);
3469 lwkt_serialize_exit(ifp->if_serializer);
3473 bge_suspend(device_t dev)
3475 struct bge_softc *sc = device_get_softc(dev);
3476 struct ifnet *ifp = &sc->arpcom.ac_if;
3478 lwkt_serialize_enter(ifp->if_serializer);
3480 lwkt_serialize_exit(ifp->if_serializer);
3486 bge_resume(device_t dev)
3488 struct bge_softc *sc = device_get_softc(dev);
3489 struct ifnet *ifp = &sc->arpcom.ac_if;
3491 lwkt_serialize_enter(ifp->if_serializer);
3493 if (ifp->if_flags & IFF_UP) {
3496 if (!ifq_is_empty(&ifp->if_snd))
3500 lwkt_serialize_exit(ifp->if_serializer);
3506 bge_setpromisc(struct bge_softc *sc)
3508 struct ifnet *ifp = &sc->arpcom.ac_if;
3510 if (ifp->if_flags & IFF_PROMISC)
3511 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3513 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC);
3517 bge_dma_free(struct bge_softc *sc)
3521 /* Destroy RX mbuf DMA stuffs. */
3522 if (sc->bge_cdata.bge_rx_mtag != NULL) {
3523 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3524 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3525 sc->bge_cdata.bge_rx_std_dmamap[i]);
3527 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3528 sc->bge_cdata.bge_rx_tmpmap);
3529 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3532 /* Destroy TX mbuf DMA stuffs. */
3533 if (sc->bge_cdata.bge_tx_mtag != NULL) {
3534 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3535 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3536 sc->bge_cdata.bge_tx_dmamap[i]);
3538 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3541 /* Destroy standard RX ring */
3542 bge_dma_block_free(sc->bge_cdata.bge_rx_std_ring_tag,
3543 sc->bge_cdata.bge_rx_std_ring_map,
3544 sc->bge_ldata.bge_rx_std_ring);
3546 if (BGE_IS_JUMBO_CAPABLE(sc))
3547 bge_free_jumbo_mem(sc);
3549 /* Destroy RX return ring */
3550 bge_dma_block_free(sc->bge_cdata.bge_rx_return_ring_tag,
3551 sc->bge_cdata.bge_rx_return_ring_map,
3552 sc->bge_ldata.bge_rx_return_ring);
3554 /* Destroy TX ring */
3555 bge_dma_block_free(sc->bge_cdata.bge_tx_ring_tag,
3556 sc->bge_cdata.bge_tx_ring_map,
3557 sc->bge_ldata.bge_tx_ring);
3559 /* Destroy status block */
3560 bge_dma_block_free(sc->bge_cdata.bge_status_tag,
3561 sc->bge_cdata.bge_status_map,
3562 sc->bge_ldata.bge_status_block);
3564 /* Destroy statistics block */
3565 bge_dma_block_free(sc->bge_cdata.bge_stats_tag,
3566 sc->bge_cdata.bge_stats_map,
3567 sc->bge_ldata.bge_stats);
3569 /* Destroy the parent tag */
3570 if (sc->bge_cdata.bge_parent_tag != NULL)
3571 bus_dma_tag_destroy(sc->bge_cdata.bge_parent_tag);
3575 bge_dma_alloc(struct bge_softc *sc)
3577 struct ifnet *ifp = &sc->arpcom.ac_if;
3581 lowaddr = BUS_SPACE_MAXADDR;
3582 if (sc->bge_flags & BGE_FLAG_MAXADDR_40BIT)
3583 lowaddr = BGE_DMA_MAXADDR_40BIT;
3586 * Allocate the parent bus DMA tag appropriate for PCI.
3588 * All of the NetExtreme/NetLink controllers have 4GB boundary
3590 * Whenever an address crosses a multiple of the 4GB boundary
3591 * (including 4GB, 8Gb, 12Gb, etc.) and makes the transition
3592 * from 0xX_FFFF_FFFF to 0x(X+1)_0000_0000 an internal DMA
3593 * state machine will lockup and cause the device to hang.
3595 error = bus_dma_tag_create(NULL, 1, BGE_DMA_BOUNDARY_4G,
3596 lowaddr, BUS_SPACE_MAXADDR,
3598 BUS_SPACE_MAXSIZE_32BIT, 0,
3599 BUS_SPACE_MAXSIZE_32BIT,
3600 0, &sc->bge_cdata.bge_parent_tag);
3602 if_printf(ifp, "could not allocate parent dma tag\n");
3607 * Create DMA tag and maps for RX mbufs.
3609 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3610 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3611 NULL, NULL, MCLBYTES, 1, MCLBYTES,
3612 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK,
3613 &sc->bge_cdata.bge_rx_mtag);
3615 if_printf(ifp, "could not allocate RX mbuf dma tag\n");
3619 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3620 BUS_DMA_WAITOK, &sc->bge_cdata.bge_rx_tmpmap);
3622 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3623 sc->bge_cdata.bge_rx_mtag = NULL;
3627 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) {
3628 error = bus_dmamap_create(sc->bge_cdata.bge_rx_mtag,
3630 &sc->bge_cdata.bge_rx_std_dmamap[i]);
3634 for (j = 0; j < i; ++j) {
3635 bus_dmamap_destroy(sc->bge_cdata.bge_rx_mtag,
3636 sc->bge_cdata.bge_rx_std_dmamap[j]);
3638 bus_dma_tag_destroy(sc->bge_cdata.bge_rx_mtag);
3639 sc->bge_cdata.bge_rx_mtag = NULL;
3641 if_printf(ifp, "could not create DMA map for RX\n");
3647 * Create DMA tag and maps for TX mbufs.
3649 error = bus_dma_tag_create(sc->bge_cdata.bge_parent_tag, 1, 0,
3650 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3652 BGE_JUMBO_FRAMELEN, BGE_NSEG_NEW, MCLBYTES,
3653 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
3655 &sc->bge_cdata.bge_tx_mtag);
3657 if_printf(ifp, "could not allocate TX mbuf dma tag\n");
3661 for (i = 0; i < BGE_TX_RING_CNT; i++) {
3662 error = bus_dmamap_create(sc->bge_cdata.bge_tx_mtag,
3663 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
3664 &sc->bge_cdata.bge_tx_dmamap[i]);
3668 for (j = 0; j < i; ++j) {
3669 bus_dmamap_destroy(sc->bge_cdata.bge_tx_mtag,
3670 sc->bge_cdata.bge_tx_dmamap[j]);
3672 bus_dma_tag_destroy(sc->bge_cdata.bge_tx_mtag);
3673 sc->bge_cdata.bge_tx_mtag = NULL;
3675 if_printf(ifp, "could not create DMA map for TX\n");
3681 * Create DMA stuffs for standard RX ring.
3683 error = bge_dma_block_alloc(sc, BGE_STD_RX_RING_SZ,
3684 &sc->bge_cdata.bge_rx_std_ring_tag,
3685 &sc->bge_cdata.bge_rx_std_ring_map,
3686 (void *)&sc->bge_ldata.bge_rx_std_ring,
3687 &sc->bge_ldata.bge_rx_std_ring_paddr);
3689 if_printf(ifp, "could not create std RX ring\n");
3694 * Create jumbo buffer pool.
3696 if (BGE_IS_JUMBO_CAPABLE(sc)) {
3697 error = bge_alloc_jumbo_mem(sc);
3699 if_printf(ifp, "could not create jumbo buffer pool\n");
3705 * Create DMA stuffs for RX return ring.
3707 error = bge_dma_block_alloc(sc, BGE_RX_RTN_RING_SZ(sc),
3708 &sc->bge_cdata.bge_rx_return_ring_tag,
3709 &sc->bge_cdata.bge_rx_return_ring_map,
3710 (void *)&sc->bge_ldata.bge_rx_return_ring,
3711 &sc->bge_ldata.bge_rx_return_ring_paddr);
3713 if_printf(ifp, "could not create RX ret ring\n");
3718 * Create DMA stuffs for TX ring.
3720 error = bge_dma_block_alloc(sc, BGE_TX_RING_SZ,
3721 &sc->bge_cdata.bge_tx_ring_tag,
3722 &sc->bge_cdata.bge_tx_ring_map,
3723 (void *)&sc->bge_ldata.bge_tx_ring,
3724 &sc->bge_ldata.bge_tx_ring_paddr);
3726 if_printf(ifp, "could not create TX ring\n");
3731 * Create DMA stuffs for status block.
3733 error = bge_dma_block_alloc(sc, BGE_STATUS_BLK_SZ,
3734 &sc->bge_cdata.bge_status_tag,
3735 &sc->bge_cdata.bge_status_map,
3736 (void *)&sc->bge_ldata.bge_status_block,
3737 &sc->bge_ldata.bge_status_block_paddr);
3739 if_printf(ifp, "could not create status block\n");
3744 * Create DMA stuffs for statistics block.
3746 error = bge_dma_block_alloc(sc, BGE_STATS_SZ,
3747 &sc->bge_cdata.bge_stats_tag,
3748 &sc->bge_cdata.bge_stats_map,
3749 (void *)&sc->bge_ldata.bge_stats,
3750 &sc->bge_ldata.bge_stats_paddr);
3752 if_printf(ifp, "could not create stats block\n");
3759 bge_dma_block_alloc(struct bge_softc *sc, bus_size_t size, bus_dma_tag_t *tag,
3760 bus_dmamap_t *map, void **addr, bus_addr_t *paddr)
3765 error = bus_dmamem_coherent(sc->bge_cdata.bge_parent_tag, PAGE_SIZE, 0,
3766 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3767 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
3771 *tag = dmem.dmem_tag;
3772 *map = dmem.dmem_map;
3773 *addr = dmem.dmem_addr;
3774 *paddr = dmem.dmem_busaddr;
3780 bge_dma_block_free(bus_dma_tag_t tag, bus_dmamap_t map, void *addr)
3783 bus_dmamap_unload(tag, map);
3784 bus_dmamem_free(tag, addr, map);
3785 bus_dma_tag_destroy(tag);
3790 * Grrr. The link status word in the status block does
3791 * not work correctly on the BCM5700 rev AX and BX chips,
3792 * according to all available information. Hence, we have
3793 * to enable MII interrupts in order to properly obtain
3794 * async link changes. Unfortunately, this also means that
3795 * we have to read the MAC status register to detect link
3796 * changes, thereby adding an additional register access to
3797 * the interrupt handler.
3799 * XXX: perhaps link state detection procedure used for
3800 * BGE_CHIPID_BCM5700_B2 can be used for others BCM5700 revisions.
3803 bge_bcm5700_link_upd(struct bge_softc *sc, uint32_t status __unused)
3805 struct ifnet *ifp = &sc->arpcom.ac_if;
3806 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3810 if (!sc->bge_link &&
3811 (mii->mii_media_status & IFM_ACTIVE) &&
3812 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3815 if_printf(ifp, "link UP\n");
3816 } else if (sc->bge_link &&
3817 (!(mii->mii_media_status & IFM_ACTIVE) ||
3818 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3821 if_printf(ifp, "link DOWN\n");
3824 /* Clear the interrupt. */
3825 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_MI_INTERRUPT);
3826 bge_miibus_readreg(sc->bge_dev, 1, BRGPHY_MII_ISR);
3827 bge_miibus_writereg(sc->bge_dev, 1, BRGPHY_MII_IMR, BRGPHY_INTRS);
3831 bge_tbi_link_upd(struct bge_softc *sc, uint32_t status)
3833 struct ifnet *ifp = &sc->arpcom.ac_if;
3835 #define PCS_ENCODE_ERR (BGE_MACSTAT_PORT_DECODE_ERROR|BGE_MACSTAT_MI_COMPLETE)
3838 * Sometimes PCS encoding errors are detected in
3839 * TBI mode (on fiber NICs), and for some reason
3840 * the chip will signal them as link changes.
3841 * If we get a link change event, but the 'PCS
3842 * encoding error' bit in the MAC status register
3843 * is set, don't bother doing a link check.
3844 * This avoids spurious "gigabit link up" messages
3845 * that sometimes appear on fiber NICs during
3846 * periods of heavy traffic.
3848 if (status & BGE_MACSTAT_TBI_PCS_SYNCHED) {
3849 if (!sc->bge_link) {
3851 if (sc->bge_asicrev == BGE_ASICREV_BCM5704) {
3852 BGE_CLRBIT(sc, BGE_MAC_MODE,
3853 BGE_MACMODE_TBI_SEND_CFGS);
3855 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF);
3858 if_printf(ifp, "link UP\n");
3860 ifp->if_link_state = LINK_STATE_UP;
3861 if_link_state_change(ifp);
3863 } else if ((status & PCS_ENCODE_ERR) != PCS_ENCODE_ERR) {
3868 if_printf(ifp, "link DOWN\n");
3870 ifp->if_link_state = LINK_STATE_DOWN;
3871 if_link_state_change(ifp);
3875 #undef PCS_ENCODE_ERR
3877 /* Clear the attention. */
3878 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3879 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3880 BGE_MACSTAT_LINK_CHANGED);
3884 bge_copper_link_upd(struct bge_softc *sc, uint32_t status __unused)
3887 * Check that the AUTOPOLL bit is set before
3888 * processing the event as a real link change.
3889 * Turning AUTOPOLL on and off in the MII read/write
3890 * functions will often trigger a link status
3891 * interrupt for no reason.
3893 if (CSR_READ_4(sc, BGE_MI_MODE) & BGE_MIMODE_AUTOPOLL) {
3894 struct ifnet *ifp = &sc->arpcom.ac_if;
3895 struct mii_data *mii = device_get_softc(sc->bge_miibus);
3899 if (!sc->bge_link &&
3900 (mii->mii_media_status & IFM_ACTIVE) &&
3901 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
3904 if_printf(ifp, "link UP\n");
3905 } else if (sc->bge_link &&
3906 (!(mii->mii_media_status & IFM_ACTIVE) ||
3907 IFM_SUBTYPE(mii->mii_media_active) == IFM_NONE)) {
3910 if_printf(ifp, "link DOWN\n");
3914 /* Clear the attention. */
3915 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED |
3916 BGE_MACSTAT_CFG_CHANGED | BGE_MACSTAT_MI_COMPLETE |
3917 BGE_MACSTAT_LINK_CHANGED);
3921 bge_sysctl_rx_coal_ticks(SYSCTL_HANDLER_ARGS)
3923 struct bge_softc *sc = arg1;
3925 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3926 &sc->bge_rx_coal_ticks,
3927 BGE_RX_COAL_TICKS_CHG);
3931 bge_sysctl_tx_coal_ticks(SYSCTL_HANDLER_ARGS)
3933 struct bge_softc *sc = arg1;
3935 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3936 &sc->bge_tx_coal_ticks,
3937 BGE_TX_COAL_TICKS_CHG);
3941 bge_sysctl_rx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3943 struct bge_softc *sc = arg1;
3945 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3946 &sc->bge_rx_max_coal_bds,
3947 BGE_RX_MAX_COAL_BDS_CHG);
3951 bge_sysctl_tx_max_coal_bds(SYSCTL_HANDLER_ARGS)
3953 struct bge_softc *sc = arg1;
3955 return bge_sysctl_coal_chg(oidp, arg1, arg2, req,
3956 &sc->bge_tx_max_coal_bds,
3957 BGE_TX_MAX_COAL_BDS_CHG);
3961 bge_sysctl_coal_chg(SYSCTL_HANDLER_ARGS, uint32_t *coal,
3962 uint32_t coal_chg_mask)
3964 struct bge_softc *sc = arg1;
3965 struct ifnet *ifp = &sc->arpcom.ac_if;
3968 lwkt_serialize_enter(ifp->if_serializer);
3971 error = sysctl_handle_int(oidp, &v, 0, req);
3972 if (!error && req->newptr != NULL) {
3977 sc->bge_coal_chg |= coal_chg_mask;
3981 lwkt_serialize_exit(ifp->if_serializer);
3986 bge_coal_change(struct bge_softc *sc)
3988 struct ifnet *ifp = &sc->arpcom.ac_if;
3991 ASSERT_SERIALIZED(ifp->if_serializer);
3993 if (sc->bge_coal_chg & BGE_RX_COAL_TICKS_CHG) {
3994 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS,
3995 sc->bge_rx_coal_ticks);
3997 val = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS);
4000 if_printf(ifp, "rx_coal_ticks -> %u\n",
4001 sc->bge_rx_coal_ticks);
4005 if (sc->bge_coal_chg & BGE_TX_COAL_TICKS_CHG) {
4006 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS,
4007 sc->bge_tx_coal_ticks);
4009 val = CSR_READ_4(sc, BGE_HCC_TX_COAL_TICKS);
4012 if_printf(ifp, "tx_coal_ticks -> %u\n",
4013 sc->bge_tx_coal_ticks);
4017 if (sc->bge_coal_chg & BGE_RX_MAX_COAL_BDS_CHG) {
4018 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS,
4019 sc->bge_rx_max_coal_bds);
4021 val = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS);
4024 if_printf(ifp, "rx_max_coal_bds -> %u\n",
4025 sc->bge_rx_max_coal_bds);
4029 if (sc->bge_coal_chg & BGE_TX_MAX_COAL_BDS_CHG) {
4030 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS,
4031 sc->bge_tx_max_coal_bds);
4033 val = CSR_READ_4(sc, BGE_HCC_TX_MAX_COAL_BDS);
4036 if_printf(ifp, "tx_max_coal_bds -> %u\n",
4037 sc->bge_tx_max_coal_bds);
4041 sc->bge_coal_chg = 0;
4045 bge_enable_intr(struct bge_softc *sc)
4047 struct ifnet *ifp = &sc->arpcom.ac_if;
4049 lwkt_serialize_handler_enable(ifp->if_serializer);
4054 bge_writembx(sc, BGE_MBX_IRQ0_LO, 0);
4057 * Unmask the interrupt when we stop polling.
4059 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
4062 * Trigger another interrupt, since above writing
4063 * to interrupt mailbox0 may acknowledge pending
4066 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
4070 bge_disable_intr(struct bge_softc *sc)
4072 struct ifnet *ifp = &sc->arpcom.ac_if;
4075 * Mask the interrupt when we start polling.
4077 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR);
4080 * Acknowledge possible asserted interrupt.
4082 bge_writembx(sc, BGE_MBX_IRQ0_LO, 1);
4084 lwkt_serialize_handler_disable(ifp->if_serializer);
4088 bge_get_eaddr_mem(struct bge_softc *sc, uint8_t ether_addr[])
4093 mac_addr = bge_readmem_ind(sc, 0x0c14);
4094 if ((mac_addr >> 16) == 0x484b) {
4095 ether_addr[0] = (uint8_t)(mac_addr >> 8);
4096 ether_addr[1] = (uint8_t)mac_addr;
4097 mac_addr = bge_readmem_ind(sc, 0x0c18);
4098 ether_addr[2] = (uint8_t)(mac_addr >> 24);
4099 ether_addr[3] = (uint8_t)(mac_addr >> 16);
4100 ether_addr[4] = (uint8_t)(mac_addr >> 8);
4101 ether_addr[5] = (uint8_t)mac_addr;
4108 bge_get_eaddr_nvram(struct bge_softc *sc, uint8_t ether_addr[])
4110 int mac_offset = BGE_EE_MAC_OFFSET;
4112 if (sc->bge_asicrev == BGE_ASICREV_BCM5906)
4113 mac_offset = BGE_EE_MAC_OFFSET_5906;
4115 return bge_read_nvram(sc, ether_addr, mac_offset + 2, ETHER_ADDR_LEN);
4119 bge_get_eaddr_eeprom(struct bge_softc *sc, uint8_t ether_addr[])
4121 if (sc->bge_flags & BGE_FLAG_NO_EEPROM)
4124 return bge_read_eeprom(sc, ether_addr, BGE_EE_MAC_OFFSET + 2,
4129 bge_get_eaddr(struct bge_softc *sc, uint8_t eaddr[])
4131 static const bge_eaddr_fcn_t bge_eaddr_funcs[] = {
4132 /* NOTE: Order is critical */
4134 bge_get_eaddr_nvram,
4135 bge_get_eaddr_eeprom,
4138 const bge_eaddr_fcn_t *func;
4140 for (func = bge_eaddr_funcs; *func != NULL; ++func) {
4141 if ((*func)(sc, eaddr) == 0)
4144 return (*func == NULL ? ENXIO : 0);