2 * Copyright (c) 2007 Sepherosa Ziehau. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $DragonFly: src/sys/dev/netif/et/if_et.c,v 1.10 2008/05/18 07:47:14 sephe Exp $
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/endian.h>
43 #include <sys/kernel.h>
45 #include <sys/malloc.h>
49 #include <sys/module.h>
50 #include <sys/socket.h>
51 #include <sys/sockio.h>
52 #include <sys/sysctl.h>
54 #include <net/ethernet.h>
56 #include <net/if_dl.h>
57 #include <net/if_types.h>
59 #include <net/if_arp.h>
60 #include <net/if_dl.h>
61 #include <net/if_media.h>
62 #include <net/if_vlan_var.h>
64 #include <machine/bus.h>
66 #include <dev/mii/mii.h>
67 #include <dev/mii/miivar.h>
69 #include <dev/pci/pcireg.h>
70 #include <dev/pci/pcivar.h>
72 #include <dev/et/if_etreg.h>
73 #include <dev/et/if_etvar.h>
75 #include "miibus_if.h"
77 MODULE_DEPEND(et, pci, 1, 1, 1);
78 MODULE_DEPEND(et, ether, 1, 1, 1);
79 MODULE_DEPEND(et, miibus, 1, 1, 1);
82 static int msi_disable = 0;
83 TUNABLE_INT("hw.et.msi_disable", &msi_disable);
85 #define ET_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
87 static int et_probe(device_t);
88 static int et_attach(device_t);
89 static int et_detach(device_t);
90 static int et_shutdown(device_t);
91 static int et_suspend(device_t);
92 static int et_resume(device_t);
94 static int et_miibus_readreg(device_t, int, int);
95 static int et_miibus_writereg(device_t, int, int, int);
96 static void et_miibus_statchg(device_t);
98 static void et_init_locked(struct et_softc *);
99 static void et_init(void *);
100 static int et_ioctl(struct ifnet *, u_long, caddr_t);
101 static void et_start_locked(struct ifnet *);
102 static void et_start(struct ifnet *);
103 static int et_watchdog(struct et_softc *);
104 static int et_ifmedia_upd_locked(struct ifnet *);
105 static int et_ifmedia_upd(struct ifnet *);
106 static void et_ifmedia_sts(struct ifnet *, struct ifmediareq *);
108 static void et_add_sysctls(struct et_softc *);
109 static int et_sysctl_rx_intr_npkts(SYSCTL_HANDLER_ARGS);
110 static int et_sysctl_rx_intr_delay(SYSCTL_HANDLER_ARGS);
112 static void et_intr(void *);
113 static void et_rxeof(struct et_softc *);
114 static void et_txeof(struct et_softc *);
116 static int et_dma_alloc(struct et_softc *);
117 static void et_dma_free(struct et_softc *);
118 static void et_dma_map_addr(void *, bus_dma_segment_t *, int, int);
119 static int et_dma_ring_alloc(struct et_softc *, bus_size_t, bus_size_t,
120 bus_dma_tag_t *, uint8_t **, bus_dmamap_t *, bus_addr_t *,
122 static void et_dma_ring_free(struct et_softc *, bus_dma_tag_t *, uint8_t **,
124 static void et_init_tx_ring(struct et_softc *);
125 static int et_init_rx_ring(struct et_softc *);
126 static void et_free_tx_ring(struct et_softc *);
127 static void et_free_rx_ring(struct et_softc *);
128 static int et_encap(struct et_softc *, struct mbuf **);
129 static int et_newbuf_cluster(struct et_rxbuf_data *, int);
130 static int et_newbuf_hdr(struct et_rxbuf_data *, int);
131 static void et_rxbuf_discard(struct et_rxbuf_data *, int);
133 static void et_stop(struct et_softc *);
134 static int et_chip_init(struct et_softc *);
135 static void et_chip_attach(struct et_softc *);
136 static void et_init_mac(struct et_softc *);
137 static void et_init_rxmac(struct et_softc *);
138 static void et_init_txmac(struct et_softc *);
139 static int et_init_rxdma(struct et_softc *);
140 static int et_init_txdma(struct et_softc *);
141 static int et_start_rxdma(struct et_softc *);
142 static int et_start_txdma(struct et_softc *);
143 static int et_stop_rxdma(struct et_softc *);
144 static int et_stop_txdma(struct et_softc *);
145 static void et_reset(struct et_softc *);
146 static int et_bus_config(struct et_softc *);
147 static void et_get_eaddr(device_t, uint8_t[]);
148 static void et_setmulti(struct et_softc *);
149 static void et_tick(void *);
150 static void et_stats_update(struct et_softc *);
152 static const struct et_dev {
157 { PCI_VENDOR_LUCENT, PCI_PRODUCT_LUCENT_ET1310,
158 "Agere ET1310 Gigabit Ethernet" },
159 { PCI_VENDOR_LUCENT, PCI_PRODUCT_LUCENT_ET1310_FAST,
160 "Agere ET1310 Fast Ethernet" },
164 static device_method_t et_methods[] = {
165 DEVMETHOD(device_probe, et_probe),
166 DEVMETHOD(device_attach, et_attach),
167 DEVMETHOD(device_detach, et_detach),
168 DEVMETHOD(device_shutdown, et_shutdown),
169 DEVMETHOD(device_suspend, et_suspend),
170 DEVMETHOD(device_resume, et_resume),
172 DEVMETHOD(miibus_readreg, et_miibus_readreg),
173 DEVMETHOD(miibus_writereg, et_miibus_writereg),
174 DEVMETHOD(miibus_statchg, et_miibus_statchg),
179 static driver_t et_driver = {
182 sizeof(struct et_softc)
185 static devclass_t et_devclass;
187 DRIVER_MODULE(et, pci, et_driver, et_devclass, 0, 0);
188 DRIVER_MODULE(miibus, et, miibus_driver, miibus_devclass, 0, 0);
190 static int et_rx_intr_npkts = 32;
191 static int et_rx_intr_delay = 20; /* x10 usec */
192 static int et_tx_intr_nsegs = 126;
193 static uint32_t et_timer = 1000 * 1000 * 1000; /* nanosec */
195 TUNABLE_INT("hw.et.timer", &et_timer);
196 TUNABLE_INT("hw.et.rx_intr_npkts", &et_rx_intr_npkts);
197 TUNABLE_INT("hw.et.rx_intr_delay", &et_rx_intr_delay);
198 TUNABLE_INT("hw.et.tx_intr_nsegs", &et_tx_intr_nsegs);
201 et_probe(device_t dev)
203 const struct et_dev *d;
206 vid = pci_get_vendor(dev);
207 did = pci_get_device(dev);
209 for (d = et_devices; d->desc != NULL; ++d) {
210 if (vid == d->vid && did == d->did) {
211 device_set_desc(dev, d->desc);
212 return (BUS_PROBE_DEFAULT);
219 et_attach(device_t dev)
223 uint8_t eaddr[ETHER_ADDR_LEN];
225 int cap, error, msic;
227 sc = device_get_softc(dev);
229 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
231 callout_init_mtx(&sc->sc_tick, &sc->sc_mtx, 0);
233 ifp = sc->ifp = if_alloc(IFT_ETHER);
235 device_printf(dev, "can not if_alloc()\n");
241 * Initialize tunables
243 sc->sc_rx_intr_npkts = et_rx_intr_npkts;
244 sc->sc_rx_intr_delay = et_rx_intr_delay;
245 sc->sc_tx_intr_nsegs = et_tx_intr_nsegs;
246 sc->sc_timer = et_timer;
248 /* Enable bus mastering */
249 pci_enable_busmaster(dev);
254 sc->sc_mem_rid = PCIR_BAR(0);
255 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
256 &sc->sc_mem_rid, RF_ACTIVE);
257 if (sc->sc_mem_res == NULL) {
258 device_printf(dev, "can't allocate IO memory\n");
263 if (pci_find_extcap(dev, PCIY_EXPRESS, &cap) == 0) {
265 sc->sc_flags |= ET_FLAG_PCIE;
266 msic = pci_msi_count(dev);
268 device_printf(dev, "MSI count: %d\n", msic);
270 if (msic > 0 && msi_disable == 0) {
272 if (pci_alloc_msi(dev, &msic) == 0) {
274 device_printf(dev, "Using %d MSI message\n",
276 sc->sc_flags |= ET_FLAG_MSI;
278 pci_release_msi(dev);
285 if ((sc->sc_flags & ET_FLAG_MSI) == 0) {
287 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
288 &sc->sc_irq_rid, RF_SHAREABLE | RF_ACTIVE);
291 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
292 &sc->sc_irq_rid, RF_ACTIVE);
294 if (sc->sc_irq_res == NULL) {
295 device_printf(dev, "can't allocate irq\n");
300 if (pci_get_device(dev) == PCI_PRODUCT_LUCENT_ET1310_FAST)
301 sc->sc_flags |= ET_FLAG_FASTETHER;
303 error = et_bus_config(sc);
307 et_get_eaddr(dev, eaddr);
309 /* Take PHY out of COMA and enable clocks. */
310 pmcfg = ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE | ET_PM_RXCLK_GATE;
311 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
312 pmcfg |= EM_PM_GIGEPHY_ENB;
313 CSR_WRITE_4(sc, ET_PM, pmcfg);
317 error = et_dma_alloc(sc);
322 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
323 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
324 ifp->if_init = et_init;
325 ifp->if_ioctl = et_ioctl;
326 ifp->if_start = et_start;
327 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_VLAN_MTU;
328 ifp->if_capenable = ifp->if_capabilities;
329 ifp->if_snd.ifq_drv_maxlen = ET_TX_NDESC - 1;
330 IFQ_SET_MAXLEN(&ifp->if_snd, ET_TX_NDESC - 1);
331 IFQ_SET_READY(&ifp->if_snd);
335 error = mii_attach(dev, &sc->sc_miibus, ifp, et_ifmedia_upd,
336 et_ifmedia_sts, BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY,
339 device_printf(dev, "attaching PHYs failed\n");
343 ether_ifattach(ifp, eaddr);
345 /* Tell the upper layer(s) we support long frames. */
346 ifp->if_hdrlen = sizeof(struct ether_vlan_header);
348 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_NET | INTR_MPSAFE,
349 NULL, et_intr, sc, &sc->sc_irq_handle);
352 device_printf(dev, "can't setup intr\n");
365 et_detach(device_t dev)
369 sc = device_get_softc(dev);
370 if (device_is_attached(dev)) {
371 ether_ifdetach(sc->ifp);
375 callout_drain(&sc->sc_tick);
378 if (sc->sc_miibus != NULL)
379 device_delete_child(dev, sc->sc_miibus);
380 bus_generic_detach(dev);
382 if (sc->sc_irq_handle != NULL)
383 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
384 if (sc->sc_irq_res != NULL)
385 bus_release_resource(dev, SYS_RES_IRQ,
386 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
387 if ((sc->sc_flags & ET_FLAG_MSI) != 0)
388 pci_release_msi(dev);
389 if (sc->sc_mem_res != NULL)
390 bus_release_resource(dev, SYS_RES_MEMORY,
391 rman_get_rid(sc->sc_mem_res), sc->sc_mem_res);
398 mtx_destroy(&sc->sc_mtx);
404 et_shutdown(device_t dev)
408 sc = device_get_softc(dev);
416 et_miibus_readreg(device_t dev, int phy, int reg)
422 sc = device_get_softc(dev);
423 /* Stop any pending operations */
424 CSR_WRITE_4(sc, ET_MII_CMD, 0);
426 val = (phy << ET_MII_ADDR_PHY_SHIFT) & ET_MII_ADDR_PHY_MASK;
427 val |= (reg << ET_MII_ADDR_REG_SHIFT) & ET_MII_ADDR_REG_MASK;
428 CSR_WRITE_4(sc, ET_MII_ADDR, val);
431 CSR_WRITE_4(sc, ET_MII_CMD, ET_MII_CMD_READ);
435 for (i = 0; i < NRETRY; ++i) {
436 val = CSR_READ_4(sc, ET_MII_IND);
437 if ((val & (ET_MII_IND_BUSY | ET_MII_IND_INVALID)) == 0)
443 "read phy %d, reg %d timed out\n", phy, reg);
450 val = CSR_READ_4(sc, ET_MII_STAT);
451 ret = val & ET_MII_STAT_VALUE_MASK;
454 /* Make sure that the current operation is stopped */
455 CSR_WRITE_4(sc, ET_MII_CMD, 0);
460 et_miibus_writereg(device_t dev, int phy, int reg, int val0)
466 sc = device_get_softc(dev);
467 /* Stop any pending operations */
468 CSR_WRITE_4(sc, ET_MII_CMD, 0);
470 val = (phy << ET_MII_ADDR_PHY_SHIFT) & ET_MII_ADDR_PHY_MASK;
471 val |= (reg << ET_MII_ADDR_REG_SHIFT) & ET_MII_ADDR_REG_MASK;
472 CSR_WRITE_4(sc, ET_MII_ADDR, val);
475 CSR_WRITE_4(sc, ET_MII_CTRL,
476 (val0 << ET_MII_CTRL_VALUE_SHIFT) & ET_MII_CTRL_VALUE_MASK);
480 for (i = 0; i < NRETRY; ++i) {
481 val = CSR_READ_4(sc, ET_MII_IND);
482 if ((val & ET_MII_IND_BUSY) == 0)
488 "write phy %d, reg %d timed out\n", phy, reg);
489 et_miibus_readreg(dev, phy, reg);
494 /* Make sure that the current operation is stopped */
495 CSR_WRITE_4(sc, ET_MII_CMD, 0);
500 et_miibus_statchg(device_t dev)
503 struct mii_data *mii;
505 uint32_t cfg1, cfg2, ctrl;
508 sc = device_get_softc(dev);
510 mii = device_get_softc(sc->sc_miibus);
512 if (mii == NULL || ifp == NULL ||
513 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
516 sc->sc_flags &= ~ET_FLAG_LINK;
517 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
518 (IFM_ACTIVE | IFM_AVALID)) {
519 switch (IFM_SUBTYPE(mii->mii_media_active)) {
522 sc->sc_flags |= ET_FLAG_LINK;
525 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
526 sc->sc_flags |= ET_FLAG_LINK;
531 /* XXX Stop TX/RX MAC? */
532 if ((sc->sc_flags & ET_FLAG_LINK) == 0)
535 /* Program MACs with resolved speed/duplex/flow-control. */
536 ctrl = CSR_READ_4(sc, ET_MAC_CTRL);
537 ctrl &= ~(ET_MAC_CTRL_GHDX | ET_MAC_CTRL_MODE_MII);
538 cfg1 = CSR_READ_4(sc, ET_MAC_CFG1);
539 cfg1 &= ~(ET_MAC_CFG1_TXFLOW | ET_MAC_CFG1_RXFLOW |
540 ET_MAC_CFG1_LOOPBACK);
541 cfg2 = CSR_READ_4(sc, ET_MAC_CFG2);
542 cfg2 &= ~(ET_MAC_CFG2_MODE_MII | ET_MAC_CFG2_MODE_GMII |
543 ET_MAC_CFG2_FDX | ET_MAC_CFG2_BIGFRM);
544 cfg2 |= ET_MAC_CFG2_LENCHK | ET_MAC_CFG2_CRC | ET_MAC_CFG2_PADCRC |
545 ((7 << ET_MAC_CFG2_PREAMBLE_LEN_SHIFT) &
546 ET_MAC_CFG2_PREAMBLE_LEN_MASK);
548 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T)
549 cfg2 |= ET_MAC_CFG2_MODE_GMII;
551 cfg2 |= ET_MAC_CFG2_MODE_MII;
552 ctrl |= ET_MAC_CTRL_MODE_MII;
555 if (IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) {
556 cfg2 |= ET_MAC_CFG2_FDX;
558 * Controller lacks automatic TX pause frame
559 * generation so it should be handled by driver.
560 * Even though driver can send pause frame with
561 * arbitrary pause time, controller does not
562 * provide a way that tells how many free RX
563 * buffers are available in controller. This
564 * limitation makes it hard to generate XON frame
565 * in time on driver side so don't enable TX flow
569 if (IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE)
570 cfg1 |= ET_MAC_CFG1_TXFLOW;
572 if (IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE)
573 cfg1 |= ET_MAC_CFG1_RXFLOW;
575 ctrl |= ET_MAC_CTRL_GHDX;
577 CSR_WRITE_4(sc, ET_MAC_CTRL, ctrl);
578 CSR_WRITE_4(sc, ET_MAC_CFG2, cfg2);
579 cfg1 |= ET_MAC_CFG1_TXEN | ET_MAC_CFG1_RXEN;
580 CSR_WRITE_4(sc, ET_MAC_CFG1, cfg1);
584 for (i = 0; i < NRETRY; ++i) {
585 cfg1 = CSR_READ_4(sc, ET_MAC_CFG1);
586 if ((cfg1 & (ET_MAC_CFG1_SYNC_TXEN | ET_MAC_CFG1_SYNC_RXEN)) ==
587 (ET_MAC_CFG1_SYNC_TXEN | ET_MAC_CFG1_SYNC_RXEN))
592 if_printf(ifp, "can't enable RX/TX\n");
593 sc->sc_flags |= ET_FLAG_TXRX_ENABLED;
599 et_ifmedia_upd_locked(struct ifnet *ifp)
602 struct mii_data *mii;
603 struct mii_softc *miisc;
606 mii = device_get_softc(sc->sc_miibus);
607 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
608 mii_phy_reset(miisc);
609 return (mii_mediachg(mii));
613 et_ifmedia_upd(struct ifnet *ifp)
620 res = et_ifmedia_upd_locked(ifp);
627 et_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
630 struct mii_data *mii;
634 if ((ifp->if_flags & IFF_UP) == 0) {
639 mii = device_get_softc(sc->sc_miibus);
641 ifmr->ifm_active = mii->mii_media_active;
642 ifmr->ifm_status = mii->mii_media_status;
647 et_stop(struct et_softc *sc)
654 callout_stop(&sc->sc_tick);
655 /* Disable interrupts. */
656 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
658 CSR_WRITE_4(sc, ET_MAC_CFG1, CSR_READ_4(sc, ET_MAC_CFG1) & ~(
659 ET_MAC_CFG1_TXEN | ET_MAC_CFG1_RXEN));
671 sc->sc_flags &= ~ET_FLAG_TXRX_ENABLED;
673 sc->watchdog_timer = 0;
674 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
678 et_bus_config(struct et_softc *sc)
680 uint32_t val, max_plsz;
681 uint16_t ack_latency, replay_timer;
684 * Test whether EEPROM is valid
685 * NOTE: Read twice to get the correct value
687 pci_read_config(sc->dev, ET_PCIR_EEPROM_STATUS, 1);
688 val = pci_read_config(sc->dev, ET_PCIR_EEPROM_STATUS, 1);
689 if (val & ET_PCIM_EEPROM_STATUS_ERROR) {
690 device_printf(sc->dev, "EEPROM status error 0x%02x\n", val);
696 if ((sc->sc_flags & ET_FLAG_PCIE) == 0)
700 * Configure ACK latency and replay timer according to
703 val = pci_read_config(sc->dev,
704 sc->sc_expcap + PCIER_DEVICE_CAP, 4);
705 max_plsz = val & PCIEM_CAP_MAX_PAYLOAD;
708 case ET_PCIV_DEVICE_CAPS_PLSZ_128:
709 ack_latency = ET_PCIV_ACK_LATENCY_128;
710 replay_timer = ET_PCIV_REPLAY_TIMER_128;
713 case ET_PCIV_DEVICE_CAPS_PLSZ_256:
714 ack_latency = ET_PCIV_ACK_LATENCY_256;
715 replay_timer = ET_PCIV_REPLAY_TIMER_256;
719 ack_latency = pci_read_config(sc->dev, ET_PCIR_ACK_LATENCY, 2);
720 replay_timer = pci_read_config(sc->dev,
721 ET_PCIR_REPLAY_TIMER, 2);
722 device_printf(sc->dev, "ack latency %u, replay timer %u\n",
723 ack_latency, replay_timer);
726 if (ack_latency != 0) {
727 pci_write_config(sc->dev, ET_PCIR_ACK_LATENCY, ack_latency, 2);
728 pci_write_config(sc->dev, ET_PCIR_REPLAY_TIMER, replay_timer,
733 * Set L0s and L1 latency timer to 2us
735 val = pci_read_config(sc->dev, ET_PCIR_L0S_L1_LATENCY, 4);
736 val &= ~(PCIEM_LINK_CAP_L0S_EXIT | PCIEM_LINK_CAP_L1_EXIT);
737 /* L0s exit latency : 2us */
739 /* L1 exit latency : 2us */
741 pci_write_config(sc->dev, ET_PCIR_L0S_L1_LATENCY, val, 4);
744 * Set max read request size to 2048 bytes
746 pci_set_max_read_req(sc->dev, 2048);
752 et_get_eaddr(device_t dev, uint8_t eaddr[])
757 val = pci_read_config(dev, ET_PCIR_MAC_ADDR0, 4);
758 for (i = 0; i < 4; ++i)
759 eaddr[i] = (val >> (8 * i)) & 0xff;
761 val = pci_read_config(dev, ET_PCIR_MAC_ADDR1, 2);
762 for (; i < ETHER_ADDR_LEN; ++i)
763 eaddr[i] = (val >> (8 * (i - 4))) & 0xff;
767 et_reset(struct et_softc *sc)
770 CSR_WRITE_4(sc, ET_MAC_CFG1,
771 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
772 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
773 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
775 CSR_WRITE_4(sc, ET_SWRST,
776 ET_SWRST_TXDMA | ET_SWRST_RXDMA |
777 ET_SWRST_TXMAC | ET_SWRST_RXMAC |
778 ET_SWRST_MAC | ET_SWRST_MAC_STAT | ET_SWRST_MMC);
780 CSR_WRITE_4(sc, ET_MAC_CFG1,
781 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
782 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC);
783 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
784 /* Disable interrupts. */
785 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
788 struct et_dmamap_arg {
789 bus_addr_t et_busaddr;
793 et_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
795 struct et_dmamap_arg *ctx;
800 KASSERT(nseg == 1, ("%s: %d segments returned!", __func__, nseg));
803 ctx->et_busaddr = segs->ds_addr;
807 et_dma_ring_alloc(struct et_softc *sc, bus_size_t alignment, bus_size_t maxsize,
808 bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, bus_addr_t *paddr,
811 struct et_dmamap_arg ctx;
814 error = bus_dma_tag_create(sc->sc_dtag, alignment, 0, BUS_SPACE_MAXADDR,
815 BUS_SPACE_MAXADDR, NULL, NULL, maxsize, 1, maxsize, 0, NULL, NULL,
818 device_printf(sc->dev, "could not create %s dma tag\n", msg);
821 /* Allocate DMA'able memory for ring. */
822 error = bus_dmamem_alloc(*tag, (void **)ring,
823 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, map);
825 device_printf(sc->dev,
826 "could not allocate DMA'able memory for %s\n", msg);
829 /* Load the address of the ring. */
831 error = bus_dmamap_load(*tag, *map, *ring, maxsize, et_dma_map_addr,
832 &ctx, BUS_DMA_NOWAIT);
834 device_printf(sc->dev,
835 "could not load DMA'able memory for %s\n", msg);
838 *paddr = ctx.et_busaddr;
843 et_dma_ring_free(struct et_softc *sc, bus_dma_tag_t *tag, uint8_t **ring,
848 bus_dmamap_unload(*tag, *map);
849 if (*map != NULL && *ring != NULL) {
850 bus_dmamem_free(*tag, *ring, *map);
855 bus_dma_tag_destroy(*tag);
861 et_dma_alloc(struct et_softc *sc)
863 struct et_txdesc_ring *tx_ring;
864 struct et_rxdesc_ring *rx_ring;
865 struct et_rxstat_ring *rxst_ring;
866 struct et_rxstatus_data *rxsd;
867 struct et_rxbuf_data *rbd;
868 struct et_txbuf_data *tbd;
869 struct et_txstatus_data *txsd;
872 error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
873 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
874 BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
877 device_printf(sc->dev, "could not allocate parent dma tag\n");
882 tx_ring = &sc->sc_tx_ring;
883 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_TX_RING_SIZE,
884 &tx_ring->tr_dtag, (uint8_t **)&tx_ring->tr_desc, &tx_ring->tr_dmap,
885 &tx_ring->tr_paddr, "TX ring");
889 /* TX status block. */
890 txsd = &sc->sc_tx_status;
891 error = et_dma_ring_alloc(sc, ET_STATUS_ALIGN, sizeof(uint32_t),
892 &txsd->txsd_dtag, (uint8_t **)&txsd->txsd_status, &txsd->txsd_dmap,
893 &txsd->txsd_paddr, "TX status block");
897 /* RX ring 0, used as to recive small sized frames. */
898 rx_ring = &sc->sc_rx_ring[0];
899 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RX_RING_SIZE,
900 &rx_ring->rr_dtag, (uint8_t **)&rx_ring->rr_desc, &rx_ring->rr_dmap,
901 &rx_ring->rr_paddr, "RX ring 0");
902 rx_ring->rr_posreg = ET_RX_RING0_POS;
906 /* RX ring 1, used as to store normal sized frames. */
907 rx_ring = &sc->sc_rx_ring[1];
908 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RX_RING_SIZE,
909 &rx_ring->rr_dtag, (uint8_t **)&rx_ring->rr_desc, &rx_ring->rr_dmap,
910 &rx_ring->rr_paddr, "RX ring 1");
911 rx_ring->rr_posreg = ET_RX_RING1_POS;
916 rxst_ring = &sc->sc_rxstat_ring;
917 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RXSTAT_RING_SIZE,
918 &rxst_ring->rsr_dtag, (uint8_t **)&rxst_ring->rsr_stat,
919 &rxst_ring->rsr_dmap, &rxst_ring->rsr_paddr, "RX stat ring");
923 /* RX status block. */
924 rxsd = &sc->sc_rx_status;
925 error = et_dma_ring_alloc(sc, ET_STATUS_ALIGN,
926 sizeof(struct et_rxstatus), &rxsd->rxsd_dtag,
927 (uint8_t **)&rxsd->rxsd_status, &rxsd->rxsd_dmap,
928 &rxsd->rxsd_paddr, "RX status block");
932 /* Create parent DMA tag for mbufs. */
933 error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
934 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
935 BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
938 device_printf(sc->dev,
939 "could not allocate parent dma tag for mbuf\n");
943 /* Create DMA tag for mini RX mbufs to use RX ring 0. */
944 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
945 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MHLEN, 1,
946 MHLEN, 0, NULL, NULL, &sc->sc_rx_mini_tag);
948 device_printf(sc->dev, "could not create mini RX dma tag\n");
952 /* Create DMA tag for standard RX mbufs to use RX ring 1. */
953 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
954 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
955 MCLBYTES, 0, NULL, NULL, &sc->sc_rx_tag);
957 device_printf(sc->dev, "could not create RX dma tag\n");
961 /* Create DMA tag for TX mbufs. */
962 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
963 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
964 MCLBYTES * ET_NSEG_MAX, ET_NSEG_MAX, MCLBYTES, 0, NULL, NULL,
967 device_printf(sc->dev, "could not create TX dma tag\n");
971 /* Initialize RX ring 0. */
972 rbd = &sc->sc_rx_data[0];
973 rbd->rbd_bufsize = ET_RXDMA_CTRL_RING0_128;
974 rbd->rbd_newbuf = et_newbuf_hdr;
975 rbd->rbd_discard = et_rxbuf_discard;
977 rbd->rbd_ring = &sc->sc_rx_ring[0];
978 /* Create DMA maps for mini RX buffers, ring 0. */
979 for (i = 0; i < ET_RX_NDESC; i++) {
980 error = bus_dmamap_create(sc->sc_rx_mini_tag, 0,
981 &rbd->rbd_buf[i].rb_dmap);
983 device_printf(sc->dev,
984 "could not create DMA map for mini RX mbufs\n");
989 /* Create a spare DMA map for mini RX buffers, ring 0. */
990 error = bus_dmamap_create(sc->sc_rx_mini_tag, 0,
991 &sc->sc_rx_mini_sparemap);
993 device_printf(sc->dev,
994 "could not create spare DMA map for mini RX mbuf\n");
998 /* Initialize RX ring 1. */
999 rbd = &sc->sc_rx_data[1];
1000 rbd->rbd_bufsize = ET_RXDMA_CTRL_RING1_2048;
1001 rbd->rbd_newbuf = et_newbuf_cluster;
1002 rbd->rbd_discard = et_rxbuf_discard;
1003 rbd->rbd_softc = sc;
1004 rbd->rbd_ring = &sc->sc_rx_ring[1];
1005 /* Create DMA maps for standard RX buffers, ring 1. */
1006 for (i = 0; i < ET_RX_NDESC; i++) {
1007 error = bus_dmamap_create(sc->sc_rx_tag, 0,
1008 &rbd->rbd_buf[i].rb_dmap);
1010 device_printf(sc->dev,
1011 "could not create DMA map for mini RX mbufs\n");
1016 /* Create a spare DMA map for standard RX buffers, ring 1. */
1017 error = bus_dmamap_create(sc->sc_rx_tag, 0, &sc->sc_rx_sparemap);
1019 device_printf(sc->dev,
1020 "could not create spare DMA map for RX mbuf\n");
1024 /* Create DMA maps for TX buffers. */
1025 tbd = &sc->sc_tx_data;
1026 for (i = 0; i < ET_TX_NDESC; i++) {
1027 error = bus_dmamap_create(sc->sc_tx_tag, 0,
1028 &tbd->tbd_buf[i].tb_dmap);
1030 device_printf(sc->dev,
1031 "could not create DMA map for TX mbufs\n");
1040 et_dma_free(struct et_softc *sc)
1042 struct et_txdesc_ring *tx_ring;
1043 struct et_rxdesc_ring *rx_ring;
1044 struct et_txstatus_data *txsd;
1045 struct et_rxstat_ring *rxst_ring;
1046 struct et_rxstatus_data *rxsd;
1047 struct et_rxbuf_data *rbd;
1048 struct et_txbuf_data *tbd;
1051 /* Destroy DMA maps for mini RX buffers, ring 0. */
1052 rbd = &sc->sc_rx_data[0];
1053 for (i = 0; i < ET_RX_NDESC; i++) {
1054 if (rbd->rbd_buf[i].rb_dmap) {
1055 bus_dmamap_destroy(sc->sc_rx_mini_tag,
1056 rbd->rbd_buf[i].rb_dmap);
1057 rbd->rbd_buf[i].rb_dmap = NULL;
1060 if (sc->sc_rx_mini_sparemap) {
1061 bus_dmamap_destroy(sc->sc_rx_mini_tag, sc->sc_rx_mini_sparemap);
1062 sc->sc_rx_mini_sparemap = NULL;
1064 if (sc->sc_rx_mini_tag) {
1065 bus_dma_tag_destroy(sc->sc_rx_mini_tag);
1066 sc->sc_rx_mini_tag = NULL;
1069 /* Destroy DMA maps for standard RX buffers, ring 1. */
1070 rbd = &sc->sc_rx_data[1];
1071 for (i = 0; i < ET_RX_NDESC; i++) {
1072 if (rbd->rbd_buf[i].rb_dmap) {
1073 bus_dmamap_destroy(sc->sc_rx_tag,
1074 rbd->rbd_buf[i].rb_dmap);
1075 rbd->rbd_buf[i].rb_dmap = NULL;
1078 if (sc->sc_rx_sparemap) {
1079 bus_dmamap_destroy(sc->sc_rx_tag, sc->sc_rx_sparemap);
1080 sc->sc_rx_sparemap = NULL;
1082 if (sc->sc_rx_tag) {
1083 bus_dma_tag_destroy(sc->sc_rx_tag);
1084 sc->sc_rx_tag = NULL;
1087 /* Destroy DMA maps for TX buffers. */
1088 tbd = &sc->sc_tx_data;
1089 for (i = 0; i < ET_TX_NDESC; i++) {
1090 if (tbd->tbd_buf[i].tb_dmap) {
1091 bus_dmamap_destroy(sc->sc_tx_tag,
1092 tbd->tbd_buf[i].tb_dmap);
1093 tbd->tbd_buf[i].tb_dmap = NULL;
1096 if (sc->sc_tx_tag) {
1097 bus_dma_tag_destroy(sc->sc_tx_tag);
1098 sc->sc_tx_tag = NULL;
1101 /* Destroy mini RX ring, ring 0. */
1102 rx_ring = &sc->sc_rx_ring[0];
1103 et_dma_ring_free(sc, &rx_ring->rr_dtag, (void *)&rx_ring->rr_desc,
1105 /* Destroy standard RX ring, ring 1. */
1106 rx_ring = &sc->sc_rx_ring[1];
1107 et_dma_ring_free(sc, &rx_ring->rr_dtag, (void *)&rx_ring->rr_desc,
1109 /* Destroy RX stat ring. */
1110 rxst_ring = &sc->sc_rxstat_ring;
1111 et_dma_ring_free(sc, &rxst_ring->rsr_dtag, (void *)&rxst_ring->rsr_stat,
1112 &rxst_ring->rsr_dmap);
1113 /* Destroy RX status block. */
1114 rxsd = &sc->sc_rx_status;
1115 et_dma_ring_free(sc, &rxst_ring->rsr_dtag, (void *)&rxst_ring->rsr_stat,
1116 &rxst_ring->rsr_dmap);
1117 /* Destroy TX ring. */
1118 tx_ring = &sc->sc_tx_ring;
1119 et_dma_ring_free(sc, &tx_ring->tr_dtag, (void *)&tx_ring->tr_desc,
1121 /* Destroy TX status block. */
1122 txsd = &sc->sc_tx_status;
1123 et_dma_ring_free(sc, &txsd->txsd_dtag, (void *)&txsd->txsd_status,
1126 /* Destroy the parent tag. */
1128 bus_dma_tag_destroy(sc->sc_dtag);
1134 et_chip_attach(struct et_softc *sc)
1139 * Perform minimal initialization
1142 /* Disable loopback */
1143 CSR_WRITE_4(sc, ET_LOOPBACK, 0);
1146 CSR_WRITE_4(sc, ET_MAC_CFG1,
1147 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
1148 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
1149 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
1152 * Setup half duplex mode
1154 val = (10 << ET_MAC_HDX_ALT_BEB_TRUNC_SHIFT) |
1155 (15 << ET_MAC_HDX_REXMIT_MAX_SHIFT) |
1156 (55 << ET_MAC_HDX_COLLWIN_SHIFT) |
1157 ET_MAC_HDX_EXC_DEFER;
1158 CSR_WRITE_4(sc, ET_MAC_HDX, val);
1160 /* Clear MAC control */
1161 CSR_WRITE_4(sc, ET_MAC_CTRL, 0);
1164 CSR_WRITE_4(sc, ET_MII_CFG, ET_MII_CFG_CLKRST);
1166 /* Bring MAC out of reset state */
1167 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
1169 /* Enable memory controllers */
1170 CSR_WRITE_4(sc, ET_MMC_CTRL, ET_MMC_CTRL_ENABLE);
1176 struct et_softc *sc;
1183 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1186 status = CSR_READ_4(sc, ET_INTR_STATUS);
1187 if ((status & ET_INTRS) == 0)
1190 /* Disable further interrupts. */
1191 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
1193 if (status & (ET_INTR_RXDMA_ERROR | ET_INTR_TXDMA_ERROR)) {
1194 device_printf(sc->dev, "DMA error(0x%08x) -- resetting\n",
1196 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1201 if (status & ET_INTR_RXDMA)
1203 if (status & (ET_INTR_TXDMA | ET_INTR_TIMER))
1205 if (status & ET_INTR_TIMER)
1206 CSR_WRITE_4(sc, ET_TIMER, sc->sc_timer);
1207 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1208 CSR_WRITE_4(sc, ET_INTR_MASK, ~ET_INTRS);
1209 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
1210 et_start_locked(ifp);
1217 et_init_locked(struct et_softc *sc)
1225 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1231 et_init_tx_ring(sc);
1232 error = et_init_rx_ring(sc);
1236 error = et_chip_init(sc);
1241 * Start TX/RX DMA engine
1243 error = et_start_rxdma(sc);
1247 error = et_start_txdma(sc);
1251 /* Enable interrupts. */
1252 CSR_WRITE_4(sc, ET_INTR_MASK, ~ET_INTRS);
1254 CSR_WRITE_4(sc, ET_TIMER, sc->sc_timer);
1256 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1257 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1259 sc->sc_flags &= ~ET_FLAG_LINK;
1260 et_ifmedia_upd_locked(ifp);
1262 callout_reset(&sc->sc_tick, hz, et_tick, sc);
1272 struct et_softc *sc = xsc;
1280 et_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1282 struct et_softc *sc;
1283 struct mii_data *mii;
1285 int error, mask, max_framelen;
1288 ifr = (struct ifreq *)data;
1295 if (ifp->if_flags & IFF_UP) {
1296 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1297 if ((ifp->if_flags ^ sc->sc_if_flags) &
1298 (IFF_ALLMULTI | IFF_PROMISC | IFF_BROADCAST))
1304 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1307 sc->sc_if_flags = ifp->if_flags;
1313 mii = device_get_softc(sc->sc_miibus);
1314 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
1319 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1329 if (sc->sc_flags & ET_FLAG_JUMBO)
1330 max_framelen = ET_JUMBO_FRAMELEN;
1333 max_framelen = MCLBYTES - 1;
1335 if (ET_FRAMELEN(ifr->ifr_mtu) > max_framelen) {
1341 if (ifp->if_mtu != ifr->ifr_mtu) {
1342 ifp->if_mtu = ifr->ifr_mtu;
1343 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1344 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1353 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1354 if ((mask & IFCAP_TXCSUM) != 0 &&
1355 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) {
1356 ifp->if_capenable ^= IFCAP_TXCSUM;
1357 if ((IFCAP_TXCSUM & ifp->if_capenable) != 0)
1358 ifp->if_hwassist |= ET_CSUM_FEATURES;
1360 ifp->if_hwassist &= ~ET_CSUM_FEATURES;
1366 error = ether_ioctl(ifp, cmd, data);
1373 et_start_locked(struct ifnet *ifp)
1375 struct et_softc *sc;
1376 struct mbuf *m_head = NULL;
1377 struct et_txdesc_ring *tx_ring;
1378 struct et_txbuf_data *tbd;
1379 uint32_t tx_ready_pos;
1385 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1387 (sc->sc_flags & (ET_FLAG_LINK | ET_FLAG_TXRX_ENABLED)) !=
1388 (ET_FLAG_LINK | ET_FLAG_TXRX_ENABLED))
1392 * Driver does not request TX completion interrupt for every
1393 * queued frames to prevent generating excessive interrupts.
1394 * This means driver may wait for TX completion interrupt even
1395 * though some frames were sucessfully transmitted. Reclaiming
1396 * transmitted frames will ensure driver see all available
1399 tbd = &sc->sc_tx_data;
1400 if (tbd->tbd_used > (ET_TX_NDESC * 2) / 3)
1403 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd); ) {
1404 if (tbd->tbd_used + ET_NSEG_SPARE >= ET_TX_NDESC) {
1405 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1409 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
1413 if (et_encap(sc, &m_head)) {
1414 if (m_head == NULL) {
1418 IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
1419 if (tbd->tbd_used > 0)
1420 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1424 ETHER_BPF_MTAP(ifp, m_head);
1428 tx_ring = &sc->sc_tx_ring;
1429 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
1430 BUS_DMASYNC_PREWRITE);
1431 tx_ready_pos = tx_ring->tr_ready_index &
1432 ET_TX_READY_POS_INDEX_MASK;
1433 if (tx_ring->tr_ready_wrap)
1434 tx_ready_pos |= ET_TX_READY_POS_WRAP;
1435 CSR_WRITE_4(sc, ET_TX_READY_POS, tx_ready_pos);
1436 sc->watchdog_timer = 5;
1441 et_start(struct ifnet *ifp)
1443 struct et_softc *sc;
1447 et_start_locked(ifp);
1452 et_watchdog(struct et_softc *sc)
1458 if (sc->watchdog_timer == 0 || --sc->watchdog_timer)
1461 bus_dmamap_sync(sc->sc_tx_status.txsd_dtag, sc->sc_tx_status.txsd_dmap,
1462 BUS_DMASYNC_POSTREAD);
1463 status = le32toh(*(sc->sc_tx_status.txsd_status));
1464 if_printf(sc->ifp, "watchdog timed out (0x%08x) -- resetting\n",
1467 sc->ifp->if_oerrors++;
1468 sc->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1470 return (EJUSTRETURN);
1474 et_stop_rxdma(struct et_softc *sc)
1477 CSR_WRITE_4(sc, ET_RXDMA_CTRL,
1478 ET_RXDMA_CTRL_HALT | ET_RXDMA_CTRL_RING1_ENABLE);
1481 if ((CSR_READ_4(sc, ET_RXDMA_CTRL) & ET_RXDMA_CTRL_HALTED) == 0) {
1482 if_printf(sc->ifp, "can't stop RX DMA engine\n");
1489 et_stop_txdma(struct et_softc *sc)
1492 CSR_WRITE_4(sc, ET_TXDMA_CTRL,
1493 ET_TXDMA_CTRL_HALT | ET_TXDMA_CTRL_SINGLE_EPKT);
1498 et_free_tx_ring(struct et_softc *sc)
1500 struct et_txdesc_ring *tx_ring;
1501 struct et_txbuf_data *tbd;
1502 struct et_txbuf *tb;
1505 tbd = &sc->sc_tx_data;
1506 tx_ring = &sc->sc_tx_ring;
1507 for (i = 0; i < ET_TX_NDESC; ++i) {
1508 tb = &tbd->tbd_buf[i];
1509 if (tb->tb_mbuf != NULL) {
1510 bus_dmamap_sync(sc->sc_tx_tag, tb->tb_dmap,
1511 BUS_DMASYNC_POSTWRITE);
1512 bus_dmamap_unload(sc->sc_mbuf_dtag, tb->tb_dmap);
1513 m_freem(tb->tb_mbuf);
1520 et_free_rx_ring(struct et_softc *sc)
1522 struct et_rxbuf_data *rbd;
1523 struct et_rxdesc_ring *rx_ring;
1524 struct et_rxbuf *rb;
1528 rx_ring = &sc->sc_rx_ring[0];
1529 rbd = &sc->sc_rx_data[0];
1530 for (i = 0; i < ET_RX_NDESC; ++i) {
1531 rb = &rbd->rbd_buf[i];
1532 if (rb->rb_mbuf != NULL) {
1533 bus_dmamap_sync(sc->sc_rx_mini_tag, rx_ring->rr_dmap,
1534 BUS_DMASYNC_POSTREAD);
1535 bus_dmamap_unload(sc->sc_rx_mini_tag, rb->rb_dmap);
1536 m_freem(rb->rb_mbuf);
1542 rx_ring = &sc->sc_rx_ring[1];
1543 rbd = &sc->sc_rx_data[1];
1544 for (i = 0; i < ET_RX_NDESC; ++i) {
1545 rb = &rbd->rbd_buf[i];
1546 if (rb->rb_mbuf != NULL) {
1547 bus_dmamap_sync(sc->sc_rx_tag, rx_ring->rr_dmap,
1548 BUS_DMASYNC_POSTREAD);
1549 bus_dmamap_unload(sc->sc_rx_tag, rb->rb_dmap);
1550 m_freem(rb->rb_mbuf);
1557 et_setmulti(struct et_softc *sc)
1560 uint32_t hash[4] = { 0, 0, 0, 0 };
1561 uint32_t rxmac_ctrl, pktfilt;
1562 struct ifmultiaddr *ifma;
1568 pktfilt = CSR_READ_4(sc, ET_PKTFILT);
1569 rxmac_ctrl = CSR_READ_4(sc, ET_RXMAC_CTRL);
1571 pktfilt &= ~(ET_PKTFILT_BCAST | ET_PKTFILT_MCAST | ET_PKTFILT_UCAST);
1572 if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) {
1573 rxmac_ctrl |= ET_RXMAC_CTRL_NO_PKTFILT;
1578 if_maddr_rlock(ifp);
1579 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1582 if (ifma->ifma_addr->sa_family != AF_LINK)
1585 h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
1586 ifma->ifma_addr), ETHER_ADDR_LEN);
1587 h = (h & 0x3f800000) >> 23;
1590 if (h >= 32 && h < 64) {
1593 } else if (h >= 64 && h < 96) {
1596 } else if (h >= 96) {
1604 if_maddr_runlock(ifp);
1606 for (i = 0; i < 4; ++i)
1607 CSR_WRITE_4(sc, ET_MULTI_HASH + (i * 4), hash[i]);
1610 pktfilt |= ET_PKTFILT_MCAST;
1611 rxmac_ctrl &= ~ET_RXMAC_CTRL_NO_PKTFILT;
1613 CSR_WRITE_4(sc, ET_PKTFILT, pktfilt);
1614 CSR_WRITE_4(sc, ET_RXMAC_CTRL, rxmac_ctrl);
1618 et_chip_init(struct et_softc *sc)
1622 int error, frame_len, rxmem_size;
1626 * Split 16Kbytes internal memory between TX and RX
1627 * according to frame length.
1629 frame_len = ET_FRAMELEN(ifp->if_mtu);
1630 if (frame_len < 2048) {
1631 rxmem_size = ET_MEM_RXSIZE_DEFAULT;
1632 } else if (frame_len <= ET_RXMAC_CUT_THRU_FRMLEN) {
1633 rxmem_size = ET_MEM_SIZE / 2;
1635 rxmem_size = ET_MEM_SIZE -
1636 roundup(frame_len + ET_MEM_TXSIZE_EX, ET_MEM_UNIT);
1638 rxq_end = ET_QUEUE_ADDR(rxmem_size);
1640 CSR_WRITE_4(sc, ET_RXQUEUE_START, ET_QUEUE_ADDR_START);
1641 CSR_WRITE_4(sc, ET_RXQUEUE_END, rxq_end);
1642 CSR_WRITE_4(sc, ET_TXQUEUE_START, rxq_end + 1);
1643 CSR_WRITE_4(sc, ET_TXQUEUE_END, ET_QUEUE_ADDR_END);
1646 CSR_WRITE_4(sc, ET_LOOPBACK, 0);
1648 /* Clear MSI configure */
1649 if ((sc->sc_flags & ET_FLAG_MSI) == 0)
1650 CSR_WRITE_4(sc, ET_MSI_CFG, 0);
1653 CSR_WRITE_4(sc, ET_TIMER, 0);
1655 /* Initialize MAC */
1658 /* Enable memory controllers */
1659 CSR_WRITE_4(sc, ET_MMC_CTRL, ET_MMC_CTRL_ENABLE);
1661 /* Initialize RX MAC */
1664 /* Initialize TX MAC */
1667 /* Initialize RX DMA engine */
1668 error = et_init_rxdma(sc);
1672 /* Initialize TX DMA engine */
1673 error = et_init_txdma(sc);
1681 et_init_tx_ring(struct et_softc *sc)
1683 struct et_txdesc_ring *tx_ring;
1684 struct et_txbuf_data *tbd;
1685 struct et_txstatus_data *txsd;
1687 tx_ring = &sc->sc_tx_ring;
1688 bzero(tx_ring->tr_desc, ET_TX_RING_SIZE);
1689 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
1690 BUS_DMASYNC_PREWRITE);
1692 tbd = &sc->sc_tx_data;
1693 tbd->tbd_start_index = 0;
1694 tbd->tbd_start_wrap = 0;
1697 txsd = &sc->sc_tx_status;
1698 bzero(txsd->txsd_status, sizeof(uint32_t));
1699 bus_dmamap_sync(txsd->txsd_dtag, txsd->txsd_dmap,
1700 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1704 et_init_rx_ring(struct et_softc *sc)
1706 struct et_rxstatus_data *rxsd;
1707 struct et_rxstat_ring *rxst_ring;
1708 struct et_rxbuf_data *rbd;
1711 for (n = 0; n < ET_RX_NRING; ++n) {
1712 rbd = &sc->sc_rx_data[n];
1713 for (i = 0; i < ET_RX_NDESC; ++i) {
1714 error = rbd->rbd_newbuf(rbd, i);
1716 if_printf(sc->ifp, "%d ring %d buf, "
1717 "newbuf failed: %d\n", n, i, error);
1723 rxsd = &sc->sc_rx_status;
1724 bzero(rxsd->rxsd_status, sizeof(struct et_rxstatus));
1725 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
1726 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1728 rxst_ring = &sc->sc_rxstat_ring;
1729 bzero(rxst_ring->rsr_stat, ET_RXSTAT_RING_SIZE);
1730 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
1731 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1737 et_init_rxdma(struct et_softc *sc)
1739 struct et_rxstatus_data *rxsd;
1740 struct et_rxstat_ring *rxst_ring;
1741 struct et_rxdesc_ring *rx_ring;
1744 error = et_stop_rxdma(sc);
1746 if_printf(sc->ifp, "can't init RX DMA engine\n");
1753 rxsd = &sc->sc_rx_status;
1754 CSR_WRITE_4(sc, ET_RX_STATUS_HI, ET_ADDR_HI(rxsd->rxsd_paddr));
1755 CSR_WRITE_4(sc, ET_RX_STATUS_LO, ET_ADDR_LO(rxsd->rxsd_paddr));
1758 * Install RX stat ring
1760 rxst_ring = &sc->sc_rxstat_ring;
1761 CSR_WRITE_4(sc, ET_RXSTAT_HI, ET_ADDR_HI(rxst_ring->rsr_paddr));
1762 CSR_WRITE_4(sc, ET_RXSTAT_LO, ET_ADDR_LO(rxst_ring->rsr_paddr));
1763 CSR_WRITE_4(sc, ET_RXSTAT_CNT, ET_RX_NSTAT - 1);
1764 CSR_WRITE_4(sc, ET_RXSTAT_POS, 0);
1765 CSR_WRITE_4(sc, ET_RXSTAT_MINCNT, ((ET_RX_NSTAT * 15) / 100) - 1);
1767 /* Match ET_RXSTAT_POS */
1768 rxst_ring->rsr_index = 0;
1769 rxst_ring->rsr_wrap = 0;
1772 * Install the 2nd RX descriptor ring
1774 rx_ring = &sc->sc_rx_ring[1];
1775 CSR_WRITE_4(sc, ET_RX_RING1_HI, ET_ADDR_HI(rx_ring->rr_paddr));
1776 CSR_WRITE_4(sc, ET_RX_RING1_LO, ET_ADDR_LO(rx_ring->rr_paddr));
1777 CSR_WRITE_4(sc, ET_RX_RING1_CNT, ET_RX_NDESC - 1);
1778 CSR_WRITE_4(sc, ET_RX_RING1_POS, ET_RX_RING1_POS_WRAP);
1779 CSR_WRITE_4(sc, ET_RX_RING1_MINCNT, ((ET_RX_NDESC * 15) / 100) - 1);
1781 /* Match ET_RX_RING1_POS */
1782 rx_ring->rr_index = 0;
1783 rx_ring->rr_wrap = 1;
1786 * Install the 1st RX descriptor ring
1788 rx_ring = &sc->sc_rx_ring[0];
1789 CSR_WRITE_4(sc, ET_RX_RING0_HI, ET_ADDR_HI(rx_ring->rr_paddr));
1790 CSR_WRITE_4(sc, ET_RX_RING0_LO, ET_ADDR_LO(rx_ring->rr_paddr));
1791 CSR_WRITE_4(sc, ET_RX_RING0_CNT, ET_RX_NDESC - 1);
1792 CSR_WRITE_4(sc, ET_RX_RING0_POS, ET_RX_RING0_POS_WRAP);
1793 CSR_WRITE_4(sc, ET_RX_RING0_MINCNT, ((ET_RX_NDESC * 15) / 100) - 1);
1795 /* Match ET_RX_RING0_POS */
1796 rx_ring->rr_index = 0;
1797 rx_ring->rr_wrap = 1;
1800 * RX intr moderation
1802 CSR_WRITE_4(sc, ET_RX_INTR_NPKTS, sc->sc_rx_intr_npkts);
1803 CSR_WRITE_4(sc, ET_RX_INTR_DELAY, sc->sc_rx_intr_delay);
1809 et_init_txdma(struct et_softc *sc)
1811 struct et_txdesc_ring *tx_ring;
1812 struct et_txstatus_data *txsd;
1815 error = et_stop_txdma(sc);
1817 if_printf(sc->ifp, "can't init TX DMA engine\n");
1822 * Install TX descriptor ring
1824 tx_ring = &sc->sc_tx_ring;
1825 CSR_WRITE_4(sc, ET_TX_RING_HI, ET_ADDR_HI(tx_ring->tr_paddr));
1826 CSR_WRITE_4(sc, ET_TX_RING_LO, ET_ADDR_LO(tx_ring->tr_paddr));
1827 CSR_WRITE_4(sc, ET_TX_RING_CNT, ET_TX_NDESC - 1);
1832 txsd = &sc->sc_tx_status;
1833 CSR_WRITE_4(sc, ET_TX_STATUS_HI, ET_ADDR_HI(txsd->txsd_paddr));
1834 CSR_WRITE_4(sc, ET_TX_STATUS_LO, ET_ADDR_LO(txsd->txsd_paddr));
1836 CSR_WRITE_4(sc, ET_TX_READY_POS, 0);
1838 /* Match ET_TX_READY_POS */
1839 tx_ring->tr_ready_index = 0;
1840 tx_ring->tr_ready_wrap = 0;
1846 et_init_mac(struct et_softc *sc)
1849 const uint8_t *eaddr;
1853 CSR_WRITE_4(sc, ET_MAC_CFG1,
1854 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
1855 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
1856 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
1859 * Setup inter packet gap
1861 val = (56 << ET_IPG_NONB2B_1_SHIFT) |
1862 (88 << ET_IPG_NONB2B_2_SHIFT) |
1863 (80 << ET_IPG_MINIFG_SHIFT) |
1864 (96 << ET_IPG_B2B_SHIFT);
1865 CSR_WRITE_4(sc, ET_IPG, val);
1868 * Setup half duplex mode
1870 val = (10 << ET_MAC_HDX_ALT_BEB_TRUNC_SHIFT) |
1871 (15 << ET_MAC_HDX_REXMIT_MAX_SHIFT) |
1872 (55 << ET_MAC_HDX_COLLWIN_SHIFT) |
1873 ET_MAC_HDX_EXC_DEFER;
1874 CSR_WRITE_4(sc, ET_MAC_HDX, val);
1876 /* Clear MAC control */
1877 CSR_WRITE_4(sc, ET_MAC_CTRL, 0);
1880 CSR_WRITE_4(sc, ET_MII_CFG, ET_MII_CFG_CLKRST);
1886 eaddr = IF_LLADDR(ifp);
1887 val = eaddr[2] | (eaddr[3] << 8) | (eaddr[4] << 16) | (eaddr[5] << 24);
1888 CSR_WRITE_4(sc, ET_MAC_ADDR1, val);
1889 val = (eaddr[0] << 16) | (eaddr[1] << 24);
1890 CSR_WRITE_4(sc, ET_MAC_ADDR2, val);
1892 /* Set max frame length */
1893 CSR_WRITE_4(sc, ET_MAX_FRMLEN, ET_FRAMELEN(ifp->if_mtu));
1895 /* Bring MAC out of reset state */
1896 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
1900 et_init_rxmac(struct et_softc *sc)
1903 const uint8_t *eaddr;
1907 /* Disable RX MAC and WOL */
1908 CSR_WRITE_4(sc, ET_RXMAC_CTRL, ET_RXMAC_CTRL_WOL_DISABLE);
1911 * Clear all WOL related registers
1913 for (i = 0; i < 3; ++i)
1914 CSR_WRITE_4(sc, ET_WOL_CRC + (i * 4), 0);
1915 for (i = 0; i < 20; ++i)
1916 CSR_WRITE_4(sc, ET_WOL_MASK + (i * 4), 0);
1919 * Set WOL source address. XXX is this necessary?
1922 eaddr = IF_LLADDR(ifp);
1923 val = (eaddr[2] << 24) | (eaddr[3] << 16) | (eaddr[4] << 8) | eaddr[5];
1924 CSR_WRITE_4(sc, ET_WOL_SA_LO, val);
1925 val = (eaddr[0] << 8) | eaddr[1];
1926 CSR_WRITE_4(sc, ET_WOL_SA_HI, val);
1928 /* Clear packet filters */
1929 CSR_WRITE_4(sc, ET_PKTFILT, 0);
1931 /* No ucast filtering */
1932 CSR_WRITE_4(sc, ET_UCAST_FILTADDR1, 0);
1933 CSR_WRITE_4(sc, ET_UCAST_FILTADDR2, 0);
1934 CSR_WRITE_4(sc, ET_UCAST_FILTADDR3, 0);
1936 if (ET_FRAMELEN(ifp->if_mtu) > ET_RXMAC_CUT_THRU_FRMLEN) {
1938 * In order to transmit jumbo packets greater than
1939 * ET_RXMAC_CUT_THRU_FRMLEN bytes, the FIFO between
1940 * RX MAC and RX DMA needs to be reduced in size to
1941 * (ET_MEM_SIZE - ET_MEM_TXSIZE_EX - framelen). In
1942 * order to implement this, we must use "cut through"
1943 * mode in the RX MAC, which chops packets down into
1944 * segments. In this case we selected 256 bytes,
1945 * since this is the size of the PCI-Express TLP's
1946 * that the ET1310 uses.
1948 val = (ET_RXMAC_SEGSZ(256) & ET_RXMAC_MC_SEGSZ_MAX_MASK) |
1949 ET_RXMAC_MC_SEGSZ_ENABLE;
1953 CSR_WRITE_4(sc, ET_RXMAC_MC_SEGSZ, val);
1955 CSR_WRITE_4(sc, ET_RXMAC_MC_WATERMARK, 0);
1957 /* Initialize RX MAC management register */
1958 CSR_WRITE_4(sc, ET_RXMAC_MGT, 0);
1960 CSR_WRITE_4(sc, ET_RXMAC_SPACE_AVL, 0);
1962 CSR_WRITE_4(sc, ET_RXMAC_MGT,
1963 ET_RXMAC_MGT_PASS_ECRC |
1964 ET_RXMAC_MGT_PASS_ELEN |
1965 ET_RXMAC_MGT_PASS_ETRUNC |
1966 ET_RXMAC_MGT_CHECK_PKT);
1969 * Configure runt filtering (may not work on certain chip generation)
1971 val = (ETHER_MIN_LEN << ET_PKTFILT_MINLEN_SHIFT) &
1972 ET_PKTFILT_MINLEN_MASK;
1973 val |= ET_PKTFILT_FRAG;
1974 CSR_WRITE_4(sc, ET_PKTFILT, val);
1976 /* Enable RX MAC but leave WOL disabled */
1977 CSR_WRITE_4(sc, ET_RXMAC_CTRL,
1978 ET_RXMAC_CTRL_WOL_DISABLE | ET_RXMAC_CTRL_ENABLE);
1981 * Setup multicast hash and allmulti/promisc mode
1987 et_init_txmac(struct et_softc *sc)
1990 /* Disable TX MAC and FC(?) */
1991 CSR_WRITE_4(sc, ET_TXMAC_CTRL, ET_TXMAC_CTRL_FC_DISABLE);
1994 * Initialize pause time.
1995 * This register should be set before XON/XOFF frame is
1998 CSR_WRITE_4(sc, ET_TXMAC_FLOWCTRL, 0 << ET_TXMAC_FLOWCTRL_CFPT_SHIFT);
2000 /* Enable TX MAC but leave FC(?) diabled */
2001 CSR_WRITE_4(sc, ET_TXMAC_CTRL,
2002 ET_TXMAC_CTRL_ENABLE | ET_TXMAC_CTRL_FC_DISABLE);
2006 et_start_rxdma(struct et_softc *sc)
2010 val = (sc->sc_rx_data[0].rbd_bufsize & ET_RXDMA_CTRL_RING0_SIZE_MASK) |
2011 ET_RXDMA_CTRL_RING0_ENABLE;
2012 val |= (sc->sc_rx_data[1].rbd_bufsize & ET_RXDMA_CTRL_RING1_SIZE_MASK) |
2013 ET_RXDMA_CTRL_RING1_ENABLE;
2015 CSR_WRITE_4(sc, ET_RXDMA_CTRL, val);
2019 if (CSR_READ_4(sc, ET_RXDMA_CTRL) & ET_RXDMA_CTRL_HALTED) {
2020 if_printf(sc->ifp, "can't start RX DMA engine\n");
2027 et_start_txdma(struct et_softc *sc)
2030 CSR_WRITE_4(sc, ET_TXDMA_CTRL, ET_TXDMA_CTRL_SINGLE_EPKT);
2035 et_rxeof(struct et_softc *sc)
2037 struct et_rxstatus_data *rxsd;
2038 struct et_rxstat_ring *rxst_ring;
2039 struct et_rxbuf_data *rbd;
2040 struct et_rxdesc_ring *rx_ring;
2041 struct et_rxstat *st;
2044 uint32_t rxstat_pos, rxring_pos;
2045 uint32_t rxst_info1, rxst_info2, rxs_stat_ring;
2046 int buflen, buf_idx, npost[2], ring_idx;
2047 int rxst_index, rxst_wrap;
2052 rxsd = &sc->sc_rx_status;
2053 rxst_ring = &sc->sc_rxstat_ring;
2055 if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
2058 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
2059 BUS_DMASYNC_POSTREAD);
2060 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
2061 BUS_DMASYNC_POSTREAD);
2063 npost[0] = npost[1] = 0;
2064 rxs_stat_ring = le32toh(rxsd->rxsd_status->rxs_stat_ring);
2065 rxst_wrap = (rxs_stat_ring & ET_RXS_STATRING_WRAP) ? 1 : 0;
2066 rxst_index = (rxs_stat_ring & ET_RXS_STATRING_INDEX_MASK) >>
2067 ET_RXS_STATRING_INDEX_SHIFT;
2069 while (rxst_index != rxst_ring->rsr_index ||
2070 rxst_wrap != rxst_ring->rsr_wrap) {
2071 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2074 MPASS(rxst_ring->rsr_index < ET_RX_NSTAT);
2075 st = &rxst_ring->rsr_stat[rxst_ring->rsr_index];
2076 rxst_info1 = le32toh(st->rxst_info1);
2077 rxst_info2 = le32toh(st->rxst_info2);
2078 buflen = (rxst_info2 & ET_RXST_INFO2_LEN_MASK) >>
2079 ET_RXST_INFO2_LEN_SHIFT;
2080 buf_idx = (rxst_info2 & ET_RXST_INFO2_BUFIDX_MASK) >>
2081 ET_RXST_INFO2_BUFIDX_SHIFT;
2082 ring_idx = (rxst_info2 & ET_RXST_INFO2_RINGIDX_MASK) >>
2083 ET_RXST_INFO2_RINGIDX_SHIFT;
2085 if (++rxst_ring->rsr_index == ET_RX_NSTAT) {
2086 rxst_ring->rsr_index = 0;
2087 rxst_ring->rsr_wrap ^= 1;
2089 rxstat_pos = rxst_ring->rsr_index & ET_RXSTAT_POS_INDEX_MASK;
2090 if (rxst_ring->rsr_wrap)
2091 rxstat_pos |= ET_RXSTAT_POS_WRAP;
2092 CSR_WRITE_4(sc, ET_RXSTAT_POS, rxstat_pos);
2094 if (ring_idx >= ET_RX_NRING) {
2096 if_printf(ifp, "invalid ring index %d\n", ring_idx);
2099 if (buf_idx >= ET_RX_NDESC) {
2101 if_printf(ifp, "invalid buf index %d\n", buf_idx);
2105 rbd = &sc->sc_rx_data[ring_idx];
2106 m = rbd->rbd_buf[buf_idx].rb_mbuf;
2107 if ((rxst_info1 & ET_RXST_INFO1_OK) == 0){
2108 /* Discard errored frame. */
2109 rbd->rbd_discard(rbd, buf_idx);
2110 } else if (rbd->rbd_newbuf(rbd, buf_idx) != 0) {
2111 /* No available mbufs, discard it. */
2113 rbd->rbd_discard(rbd, buf_idx);
2115 buflen -= ETHER_CRC_LEN;
2116 if (buflen < ETHER_HDR_LEN) {
2120 m->m_pkthdr.len = m->m_len = buflen;
2121 m->m_pkthdr.rcvif = ifp;
2123 ifp->if_input(ifp, m);
2128 rx_ring = &sc->sc_rx_ring[ring_idx];
2129 if (buf_idx != rx_ring->rr_index) {
2131 "WARNING!! ring %d, buf_idx %d, rr_idx %d\n",
2132 ring_idx, buf_idx, rx_ring->rr_index);
2135 MPASS(rx_ring->rr_index < ET_RX_NDESC);
2136 if (++rx_ring->rr_index == ET_RX_NDESC) {
2137 rx_ring->rr_index = 0;
2138 rx_ring->rr_wrap ^= 1;
2140 rxring_pos = rx_ring->rr_index & ET_RX_RING_POS_INDEX_MASK;
2141 if (rx_ring->rr_wrap)
2142 rxring_pos |= ET_RX_RING_POS_WRAP;
2143 CSR_WRITE_4(sc, rx_ring->rr_posreg, rxring_pos);
2146 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
2147 BUS_DMASYNC_PREREAD);
2148 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
2149 BUS_DMASYNC_PREREAD);
2153 et_encap(struct et_softc *sc, struct mbuf **m0)
2155 struct et_txdesc_ring *tx_ring;
2156 struct et_txbuf_data *tbd;
2157 struct et_txdesc *td;
2159 bus_dma_segment_t segs[ET_NSEG_MAX];
2161 uint32_t csum_flags, last_td_ctrl2;
2162 int error, i, idx, first_idx, last_idx, nsegs;
2164 tx_ring = &sc->sc_tx_ring;
2165 MPASS(tx_ring->tr_ready_index < ET_TX_NDESC);
2166 tbd = &sc->sc_tx_data;
2167 first_idx = tx_ring->tr_ready_index;
2168 map = tbd->tbd_buf[first_idx].tb_dmap;
2170 error = bus_dmamap_load_mbuf_sg(sc->sc_tx_tag, map, *m0, segs, &nsegs,
2172 if (error == EFBIG) {
2173 m = m_collapse(*m0, M_DONTWAIT, ET_NSEG_MAX);
2180 error = bus_dmamap_load_mbuf_sg(sc->sc_tx_tag, map, *m0, segs,
2187 } else if (error != 0)
2190 /* Check for descriptor overruns. */
2191 if (tbd->tbd_used + nsegs > ET_TX_NDESC - 1) {
2192 bus_dmamap_unload(sc->sc_tx_tag, map);
2195 bus_dmamap_sync(sc->sc_tx_tag, map, BUS_DMASYNC_PREWRITE);
2197 last_td_ctrl2 = ET_TDCTRL2_LAST_FRAG;
2199 if (sc->sc_tx / sc->sc_tx_intr_nsegs != sc->sc_tx_intr) {
2200 sc->sc_tx_intr = sc->sc_tx / sc->sc_tx_intr_nsegs;
2201 last_td_ctrl2 |= ET_TDCTRL2_INTR;
2206 if ((m->m_pkthdr.csum_flags & ET_CSUM_FEATURES) != 0) {
2207 if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0)
2208 csum_flags |= ET_TDCTRL2_CSUM_IP;
2209 if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0)
2210 csum_flags |= ET_TDCTRL2_CSUM_UDP;
2211 else if ((m->m_pkthdr.csum_flags & CSUM_TCP) != 0)
2212 csum_flags |= ET_TDCTRL2_CSUM_TCP;
2215 for (i = 0; i < nsegs; ++i) {
2216 idx = (first_idx + i) % ET_TX_NDESC;
2217 td = &tx_ring->tr_desc[idx];
2218 td->td_addr_hi = htole32(ET_ADDR_HI(segs[i].ds_addr));
2219 td->td_addr_lo = htole32(ET_ADDR_LO(segs[i].ds_addr));
2220 td->td_ctrl1 = htole32(segs[i].ds_len & ET_TDCTRL1_LEN_MASK);
2221 if (i == nsegs - 1) {
2223 td->td_ctrl2 = htole32(last_td_ctrl2 | csum_flags);
2226 td->td_ctrl2 = htole32(csum_flags);
2228 MPASS(tx_ring->tr_ready_index < ET_TX_NDESC);
2229 if (++tx_ring->tr_ready_index == ET_TX_NDESC) {
2230 tx_ring->tr_ready_index = 0;
2231 tx_ring->tr_ready_wrap ^= 1;
2234 td = &tx_ring->tr_desc[first_idx];
2236 td->td_ctrl2 |= htole32(ET_TDCTRL2_FIRST_FRAG);
2238 MPASS(last_idx >= 0);
2239 tbd->tbd_buf[first_idx].tb_dmap = tbd->tbd_buf[last_idx].tb_dmap;
2240 tbd->tbd_buf[last_idx].tb_dmap = map;
2241 tbd->tbd_buf[last_idx].tb_mbuf = m;
2243 tbd->tbd_used += nsegs;
2244 MPASS(tbd->tbd_used <= ET_TX_NDESC);
2250 et_txeof(struct et_softc *sc)
2252 struct et_txdesc_ring *tx_ring;
2253 struct et_txbuf_data *tbd;
2254 struct et_txbuf *tb;
2262 tx_ring = &sc->sc_tx_ring;
2263 tbd = &sc->sc_tx_data;
2265 if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
2268 if (tbd->tbd_used == 0)
2271 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
2272 BUS_DMASYNC_POSTWRITE);
2274 tx_done = CSR_READ_4(sc, ET_TX_DONE_POS);
2275 end = tx_done & ET_TX_DONE_POS_INDEX_MASK;
2276 wrap = (tx_done & ET_TX_DONE_POS_WRAP) ? 1 : 0;
2278 while (tbd->tbd_start_index != end || tbd->tbd_start_wrap != wrap) {
2279 MPASS(tbd->tbd_start_index < ET_TX_NDESC);
2280 tb = &tbd->tbd_buf[tbd->tbd_start_index];
2281 if (tb->tb_mbuf != NULL) {
2282 bus_dmamap_sync(sc->sc_tx_tag, tb->tb_dmap,
2283 BUS_DMASYNC_POSTWRITE);
2284 bus_dmamap_unload(sc->sc_tx_tag, tb->tb_dmap);
2285 m_freem(tb->tb_mbuf);
2289 if (++tbd->tbd_start_index == ET_TX_NDESC) {
2290 tbd->tbd_start_index = 0;
2291 tbd->tbd_start_wrap ^= 1;
2294 MPASS(tbd->tbd_used > 0);
2298 if (tbd->tbd_used == 0)
2299 sc->watchdog_timer = 0;
2300 if (tbd->tbd_used + ET_NSEG_SPARE < ET_TX_NDESC)
2301 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2307 struct et_softc *sc;
2309 struct mii_data *mii;
2314 mii = device_get_softc(sc->sc_miibus);
2317 et_stats_update(sc);
2318 if (et_watchdog(sc) == EJUSTRETURN)
2320 callout_reset(&sc->sc_tick, hz, et_tick, sc);
2324 et_newbuf_cluster(struct et_rxbuf_data *rbd, int buf_idx)
2326 struct et_softc *sc;
2327 struct et_rxdesc *desc;
2328 struct et_rxbuf *rb;
2330 bus_dma_segment_t segs[1];
2334 MPASS(buf_idx < ET_RX_NDESC);
2335 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
2338 m->m_len = m->m_pkthdr.len = MCLBYTES;
2339 m_adj(m, ETHER_ALIGN);
2341 sc = rbd->rbd_softc;
2342 rb = &rbd->rbd_buf[buf_idx];
2344 if (bus_dmamap_load_mbuf_sg(sc->sc_rx_tag, sc->sc_rx_sparemap, m,
2345 segs, &nsegs, 0) != 0) {
2349 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
2351 if (rb->rb_mbuf != NULL) {
2352 bus_dmamap_sync(sc->sc_rx_tag, rb->rb_dmap,
2353 BUS_DMASYNC_POSTREAD);
2354 bus_dmamap_unload(sc->sc_rx_tag, rb->rb_dmap);
2357 rb->rb_dmap = sc->sc_rx_sparemap;
2358 sc->sc_rx_sparemap = dmap;
2359 bus_dmamap_sync(sc->sc_rx_tag, rb->rb_dmap, BUS_DMASYNC_PREREAD);
2362 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2363 desc->rd_addr_hi = htole32(ET_ADDR_HI(segs[0].ds_addr));
2364 desc->rd_addr_lo = htole32(ET_ADDR_LO(segs[0].ds_addr));
2365 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2366 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2367 BUS_DMASYNC_PREWRITE);
2372 et_rxbuf_discard(struct et_rxbuf_data *rbd, int buf_idx)
2374 struct et_rxdesc *desc;
2376 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2377 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2378 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2379 BUS_DMASYNC_PREWRITE);
2383 et_newbuf_hdr(struct et_rxbuf_data *rbd, int buf_idx)
2385 struct et_softc *sc;
2386 struct et_rxdesc *desc;
2387 struct et_rxbuf *rb;
2389 bus_dma_segment_t segs[1];
2393 MPASS(buf_idx < ET_RX_NDESC);
2394 MGETHDR(m, M_DONTWAIT, MT_DATA);
2397 m->m_len = m->m_pkthdr.len = MHLEN;
2398 m_adj(m, ETHER_ALIGN);
2400 sc = rbd->rbd_softc;
2401 rb = &rbd->rbd_buf[buf_idx];
2403 if (bus_dmamap_load_mbuf_sg(sc->sc_rx_mini_tag, sc->sc_rx_mini_sparemap,
2404 m, segs, &nsegs, 0) != 0) {
2408 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
2410 if (rb->rb_mbuf != NULL) {
2411 bus_dmamap_sync(sc->sc_rx_mini_tag, rb->rb_dmap,
2412 BUS_DMASYNC_POSTREAD);
2413 bus_dmamap_unload(sc->sc_rx_mini_tag, rb->rb_dmap);
2416 rb->rb_dmap = sc->sc_rx_mini_sparemap;
2417 sc->sc_rx_mini_sparemap = dmap;
2418 bus_dmamap_sync(sc->sc_rx_mini_tag, rb->rb_dmap, BUS_DMASYNC_PREREAD);
2421 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2422 desc->rd_addr_hi = htole32(ET_ADDR_HI(segs[0].ds_addr));
2423 desc->rd_addr_lo = htole32(ET_ADDR_LO(segs[0].ds_addr));
2424 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2425 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2426 BUS_DMASYNC_PREWRITE);
2430 #define ET_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2431 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2432 #define ET_SYSCTL_STAT_ADD64(c, h, n, p, d) \
2433 SYSCTL_ADD_QUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d)
2436 * Create sysctl tree
2439 et_add_sysctls(struct et_softc * sc)
2441 struct sysctl_ctx_list *ctx;
2442 struct sysctl_oid_list *children, *parent;
2443 struct sysctl_oid *tree;
2444 struct et_hw_stats *stats;
2446 ctx = device_get_sysctl_ctx(sc->dev);
2447 children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
2449 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_npkts",
2450 CTLTYPE_INT | CTLFLAG_RW, sc, 0, et_sysctl_rx_intr_npkts, "I",
2451 "RX IM, # packets per RX interrupt");
2452 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_delay",
2453 CTLTYPE_INT | CTLFLAG_RW, sc, 0, et_sysctl_rx_intr_delay, "I",
2454 "RX IM, RX interrupt delay (x10 usec)");
2455 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_intr_nsegs",
2456 CTLFLAG_RW, &sc->sc_tx_intr_nsegs, 0,
2457 "TX IM, # segments per TX interrupt");
2458 SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "timer",
2459 CTLFLAG_RW, &sc->sc_timer, 0, "TX timer");
2461 tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats", CTLFLAG_RD,
2462 NULL, "ET statistics");
2463 parent = SYSCTL_CHILDREN(tree);
2465 /* TX/RX statistics. */
2466 stats = &sc->sc_stats;
2467 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_64", &stats->pkts_64,
2468 "0 to 64 bytes frames");
2469 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_65_127", &stats->pkts_65,
2470 "65 to 127 bytes frames");
2471 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_128_255", &stats->pkts_128,
2472 "128 to 255 bytes frames");
2473 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_256_511", &stats->pkts_256,
2474 "256 to 511 bytes frames");
2475 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_512_1023", &stats->pkts_512,
2476 "512 to 1023 bytes frames");
2477 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_1024_1518", &stats->pkts_1024,
2478 "1024 to 1518 bytes frames");
2479 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_1519_1522", &stats->pkts_1519,
2480 "1519 to 1522 bytes frames");
2482 /* RX statistics. */
2483 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx", CTLFLAG_RD,
2484 NULL, "RX MAC statistics");
2485 children = SYSCTL_CHILDREN(tree);
2486 ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
2487 &stats->rx_bytes, "Good bytes");
2488 ET_SYSCTL_STAT_ADD64(ctx, children, "frames",
2489 &stats->rx_frames, "Good frames");
2490 ET_SYSCTL_STAT_ADD32(ctx, children, "crc_errs",
2491 &stats->rx_crcerrs, "CRC errors");
2492 ET_SYSCTL_STAT_ADD64(ctx, children, "mcast_frames",
2493 &stats->rx_mcast, "Multicast frames");
2494 ET_SYSCTL_STAT_ADD64(ctx, children, "bcast_frames",
2495 &stats->rx_bcast, "Broadcast frames");
2496 ET_SYSCTL_STAT_ADD32(ctx, children, "control",
2497 &stats->rx_control, "Control frames");
2498 ET_SYSCTL_STAT_ADD32(ctx, children, "pause",
2499 &stats->rx_pause, "Pause frames");
2500 ET_SYSCTL_STAT_ADD32(ctx, children, "unknown_control",
2501 &stats->rx_unknown_control, "Unknown control frames");
2502 ET_SYSCTL_STAT_ADD32(ctx, children, "align_errs",
2503 &stats->rx_alignerrs, "Alignment errors");
2504 ET_SYSCTL_STAT_ADD32(ctx, children, "len_errs",
2505 &stats->rx_lenerrs, "Frames with length mismatched");
2506 ET_SYSCTL_STAT_ADD32(ctx, children, "code_errs",
2507 &stats->rx_codeerrs, "Frames with code error");
2508 ET_SYSCTL_STAT_ADD32(ctx, children, "cs_errs",
2509 &stats->rx_cserrs, "Frames with carrier sense error");
2510 ET_SYSCTL_STAT_ADD32(ctx, children, "runts",
2511 &stats->rx_runts, "Too short frames");
2512 ET_SYSCTL_STAT_ADD64(ctx, children, "oversize",
2513 &stats->rx_oversize, "Oversized frames");
2514 ET_SYSCTL_STAT_ADD32(ctx, children, "fragments",
2515 &stats->rx_fragments, "Fragmented frames");
2516 ET_SYSCTL_STAT_ADD32(ctx, children, "jabbers",
2517 &stats->rx_jabbers, "Frames with jabber error");
2518 ET_SYSCTL_STAT_ADD32(ctx, children, "drop",
2519 &stats->rx_drop, "Dropped frames");
2521 /* TX statistics. */
2522 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx", CTLFLAG_RD,
2523 NULL, "TX MAC statistics");
2524 children = SYSCTL_CHILDREN(tree);
2525 ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
2526 &stats->tx_bytes, "Good bytes");
2527 ET_SYSCTL_STAT_ADD64(ctx, children, "frames",
2528 &stats->tx_frames, "Good frames");
2529 ET_SYSCTL_STAT_ADD64(ctx, children, "mcast_frames",
2530 &stats->tx_mcast, "Multicast frames");
2531 ET_SYSCTL_STAT_ADD64(ctx, children, "bcast_frames",
2532 &stats->tx_bcast, "Broadcast frames");
2533 ET_SYSCTL_STAT_ADD32(ctx, children, "pause",
2534 &stats->tx_pause, "Pause frames");
2535 ET_SYSCTL_STAT_ADD32(ctx, children, "deferred",
2536 &stats->tx_deferred, "Deferred frames");
2537 ET_SYSCTL_STAT_ADD32(ctx, children, "excess_deferred",
2538 &stats->tx_excess_deferred, "Excessively deferred frames");
2539 ET_SYSCTL_STAT_ADD32(ctx, children, "single_colls",
2540 &stats->tx_single_colls, "Single collisions");
2541 ET_SYSCTL_STAT_ADD32(ctx, children, "multi_colls",
2542 &stats->tx_multi_colls, "Multiple collisions");
2543 ET_SYSCTL_STAT_ADD32(ctx, children, "late_colls",
2544 &stats->tx_late_colls, "Late collisions");
2545 ET_SYSCTL_STAT_ADD32(ctx, children, "excess_colls",
2546 &stats->tx_excess_colls, "Excess collisions");
2547 ET_SYSCTL_STAT_ADD32(ctx, children, "total_colls",
2548 &stats->tx_total_colls, "Total collisions");
2549 ET_SYSCTL_STAT_ADD32(ctx, children, "pause_honored",
2550 &stats->tx_pause_honored, "Honored pause frames");
2551 ET_SYSCTL_STAT_ADD32(ctx, children, "drop",
2552 &stats->tx_drop, "Dropped frames");
2553 ET_SYSCTL_STAT_ADD32(ctx, children, "jabbers",
2554 &stats->tx_jabbers, "Frames with jabber errors");
2555 ET_SYSCTL_STAT_ADD32(ctx, children, "crc_errs",
2556 &stats->tx_crcerrs, "Frames with CRC errors");
2557 ET_SYSCTL_STAT_ADD32(ctx, children, "control",
2558 &stats->tx_control, "Control frames");
2559 ET_SYSCTL_STAT_ADD64(ctx, children, "oversize",
2560 &stats->tx_oversize, "Oversized frames");
2561 ET_SYSCTL_STAT_ADD32(ctx, children, "undersize",
2562 &stats->tx_undersize, "Undersized frames");
2563 ET_SYSCTL_STAT_ADD32(ctx, children, "fragments",
2564 &stats->tx_fragments, "Fragmented frames");
2567 #undef ET_SYSCTL_STAT_ADD32
2568 #undef ET_SYSCTL_STAT_ADD64
2571 et_sysctl_rx_intr_npkts(SYSCTL_HANDLER_ARGS)
2573 struct et_softc *sc;
2579 v = sc->sc_rx_intr_npkts;
2580 error = sysctl_handle_int(oidp, &v, 0, req);
2581 if (error || req->newptr == NULL)
2588 if (sc->sc_rx_intr_npkts != v) {
2589 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2590 CSR_WRITE_4(sc, ET_RX_INTR_NPKTS, v);
2591 sc->sc_rx_intr_npkts = v;
2598 et_sysctl_rx_intr_delay(SYSCTL_HANDLER_ARGS)
2600 struct et_softc *sc;
2606 v = sc->sc_rx_intr_delay;
2607 error = sysctl_handle_int(oidp, &v, 0, req);
2608 if (error || req->newptr == NULL)
2615 if (sc->sc_rx_intr_delay != v) {
2616 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2617 CSR_WRITE_4(sc, ET_RX_INTR_DELAY, v);
2618 sc->sc_rx_intr_delay = v;
2625 et_stats_update(struct et_softc *sc)
2628 struct et_hw_stats *stats;
2630 stats = &sc->sc_stats;
2631 stats->pkts_64 += CSR_READ_4(sc, ET_STAT_PKTS_64);
2632 stats->pkts_65 += CSR_READ_4(sc, ET_STAT_PKTS_65_127);
2633 stats->pkts_128 += CSR_READ_4(sc, ET_STAT_PKTS_128_255);
2634 stats->pkts_256 += CSR_READ_4(sc, ET_STAT_PKTS_256_511);
2635 stats->pkts_512 += CSR_READ_4(sc, ET_STAT_PKTS_512_1023);
2636 stats->pkts_1024 += CSR_READ_4(sc, ET_STAT_PKTS_1024_1518);
2637 stats->pkts_1519 += CSR_READ_4(sc, ET_STAT_PKTS_1519_1522);
2639 stats->rx_bytes += CSR_READ_4(sc, ET_STAT_RX_BYTES);
2640 stats->rx_frames += CSR_READ_4(sc, ET_STAT_RX_FRAMES);
2641 stats->rx_crcerrs += CSR_READ_4(sc, ET_STAT_RX_CRC_ERR);
2642 stats->rx_mcast += CSR_READ_4(sc, ET_STAT_RX_MCAST);
2643 stats->rx_bcast += CSR_READ_4(sc, ET_STAT_RX_BCAST);
2644 stats->rx_control += CSR_READ_4(sc, ET_STAT_RX_CTL);
2645 stats->rx_pause += CSR_READ_4(sc, ET_STAT_RX_PAUSE);
2646 stats->rx_unknown_control += CSR_READ_4(sc, ET_STAT_RX_UNKNOWN_CTL);
2647 stats->rx_alignerrs += CSR_READ_4(sc, ET_STAT_RX_ALIGN_ERR);
2648 stats->rx_lenerrs += CSR_READ_4(sc, ET_STAT_RX_LEN_ERR);
2649 stats->rx_codeerrs += CSR_READ_4(sc, ET_STAT_RX_CODE_ERR);
2650 stats->rx_cserrs += CSR_READ_4(sc, ET_STAT_RX_CS_ERR);
2651 stats->rx_runts += CSR_READ_4(sc, ET_STAT_RX_RUNT);
2652 stats->rx_oversize += CSR_READ_4(sc, ET_STAT_RX_OVERSIZE);
2653 stats->rx_fragments += CSR_READ_4(sc, ET_STAT_RX_FRAG);
2654 stats->rx_jabbers += CSR_READ_4(sc, ET_STAT_RX_JABBER);
2655 stats->rx_drop += CSR_READ_4(sc, ET_STAT_RX_DROP);
2657 stats->tx_bytes += CSR_READ_4(sc, ET_STAT_TX_BYTES);
2658 stats->tx_frames += CSR_READ_4(sc, ET_STAT_TX_FRAMES);
2659 stats->tx_mcast += CSR_READ_4(sc, ET_STAT_TX_MCAST);
2660 stats->tx_bcast += CSR_READ_4(sc, ET_STAT_TX_BCAST);
2661 stats->tx_pause += CSR_READ_4(sc, ET_STAT_TX_PAUSE);
2662 stats->tx_deferred += CSR_READ_4(sc, ET_STAT_TX_DEFER);
2663 stats->tx_excess_deferred += CSR_READ_4(sc, ET_STAT_TX_EXCESS_DEFER);
2664 stats->tx_single_colls += CSR_READ_4(sc, ET_STAT_TX_SINGLE_COL);
2665 stats->tx_multi_colls += CSR_READ_4(sc, ET_STAT_TX_MULTI_COL);
2666 stats->tx_late_colls += CSR_READ_4(sc, ET_STAT_TX_LATE_COL);
2667 stats->tx_excess_colls += CSR_READ_4(sc, ET_STAT_TX_EXCESS_COL);
2668 stats->tx_total_colls += CSR_READ_4(sc, ET_STAT_TX_TOTAL_COL);
2669 stats->tx_pause_honored += CSR_READ_4(sc, ET_STAT_TX_PAUSE_HONOR);
2670 stats->tx_drop += CSR_READ_4(sc, ET_STAT_TX_DROP);
2671 stats->tx_jabbers += CSR_READ_4(sc, ET_STAT_TX_JABBER);
2672 stats->tx_crcerrs += CSR_READ_4(sc, ET_STAT_TX_CRC_ERR);
2673 stats->tx_control += CSR_READ_4(sc, ET_STAT_TX_CTL);
2674 stats->tx_oversize += CSR_READ_4(sc, ET_STAT_TX_OVERSIZE);
2675 stats->tx_undersize += CSR_READ_4(sc, ET_STAT_TX_UNDERSIZE);
2676 stats->tx_fragments += CSR_READ_4(sc, ET_STAT_TX_FRAG);
2678 /* Update ifnet counters. */
2680 ifp->if_opackets = (u_long)stats->tx_frames;
2681 ifp->if_collisions = stats->tx_total_colls;
2682 ifp->if_oerrors = stats->tx_drop + stats->tx_jabbers +
2683 stats->tx_crcerrs + stats->tx_excess_deferred +
2684 stats->tx_late_colls;
2685 ifp->if_ipackets = (u_long)stats->rx_frames;
2686 ifp->if_ierrors = stats->rx_crcerrs + stats->rx_alignerrs +
2687 stats->rx_lenerrs + stats->rx_codeerrs + stats->rx_cserrs +
2688 stats->rx_runts + stats->rx_jabbers + stats->rx_drop;
2692 et_suspend(device_t dev)
2694 struct et_softc *sc;
2697 sc = device_get_softc(dev);
2699 if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
2701 /* Diable all clocks and put PHY into COMA. */
2702 pmcfg = CSR_READ_4(sc, ET_PM);
2703 pmcfg &= ~(EM_PM_GIGEPHY_ENB | ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE |
2705 pmcfg |= ET_PM_PHY_SW_COMA;
2706 CSR_WRITE_4(sc, ET_PM, pmcfg);
2712 et_resume(device_t dev)
2714 struct et_softc *sc;
2717 sc = device_get_softc(dev);
2719 /* Take PHY out of COMA and enable clocks. */
2720 pmcfg = ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE | ET_PM_RXCLK_GATE;
2721 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
2722 pmcfg |= EM_PM_GIGEPHY_ENB;
2723 CSR_WRITE_4(sc, ET_PM, pmcfg);
2724 if ((sc->ifp->if_flags & IFF_UP) != 0)