2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2007 Sepherosa Ziehau. All rights reserved.
6 * This code is derived from software contributed to The DragonFly Project
7 * by Sepherosa Ziehau <sepherosa@gmail.com>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
19 * 3. Neither the name of The DragonFly Project nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific, prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
31 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
33 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * $DragonFly: src/sys/dev/netif/et/if_et.c,v 1.10 2008/05/18 07:47:14 sephe Exp $
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/endian.h>
45 #include <sys/kernel.h>
47 #include <sys/malloc.h>
51 #include <sys/module.h>
52 #include <sys/socket.h>
53 #include <sys/sockio.h>
54 #include <sys/sysctl.h>
56 #include <net/ethernet.h>
58 #include <net/if_var.h>
59 #include <net/if_dl.h>
60 #include <net/if_types.h>
62 #include <net/if_arp.h>
63 #include <net/if_media.h>
64 #include <net/if_vlan_var.h>
66 #include <machine/bus.h>
68 #include <dev/mii/mii.h>
69 #include <dev/mii/miivar.h>
71 #include <dev/pci/pcireg.h>
72 #include <dev/pci/pcivar.h>
74 #include <dev/et/if_etreg.h>
75 #include <dev/et/if_etvar.h>
77 #include "miibus_if.h"
79 MODULE_DEPEND(et, pci, 1, 1, 1);
80 MODULE_DEPEND(et, ether, 1, 1, 1);
81 MODULE_DEPEND(et, miibus, 1, 1, 1);
84 static int msi_disable = 0;
85 TUNABLE_INT("hw.et.msi_disable", &msi_disable);
87 #define ET_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
89 static int et_probe(device_t);
90 static int et_attach(device_t);
91 static int et_detach(device_t);
92 static int et_shutdown(device_t);
93 static int et_suspend(device_t);
94 static int et_resume(device_t);
96 static int et_miibus_readreg(device_t, int, int);
97 static int et_miibus_writereg(device_t, int, int, int);
98 static void et_miibus_statchg(device_t);
100 static void et_init_locked(struct et_softc *);
101 static void et_init(void *);
102 static int et_ioctl(struct ifnet *, u_long, caddr_t);
103 static void et_start_locked(struct ifnet *);
104 static void et_start(struct ifnet *);
105 static int et_watchdog(struct et_softc *);
106 static int et_ifmedia_upd_locked(struct ifnet *);
107 static int et_ifmedia_upd(struct ifnet *);
108 static void et_ifmedia_sts(struct ifnet *, struct ifmediareq *);
109 static uint64_t et_get_counter(struct ifnet *, ift_counter);
111 static void et_add_sysctls(struct et_softc *);
112 static int et_sysctl_rx_intr_npkts(SYSCTL_HANDLER_ARGS);
113 static int et_sysctl_rx_intr_delay(SYSCTL_HANDLER_ARGS);
115 static void et_intr(void *);
116 static void et_rxeof(struct et_softc *);
117 static void et_txeof(struct et_softc *);
119 static int et_dma_alloc(struct et_softc *);
120 static void et_dma_free(struct et_softc *);
121 static void et_dma_map_addr(void *, bus_dma_segment_t *, int, int);
122 static int et_dma_ring_alloc(struct et_softc *, bus_size_t, bus_size_t,
123 bus_dma_tag_t *, uint8_t **, bus_dmamap_t *, bus_addr_t *,
125 static void et_dma_ring_free(struct et_softc *, bus_dma_tag_t *, uint8_t **,
126 bus_dmamap_t, bus_addr_t *);
127 static void et_init_tx_ring(struct et_softc *);
128 static int et_init_rx_ring(struct et_softc *);
129 static void et_free_tx_ring(struct et_softc *);
130 static void et_free_rx_ring(struct et_softc *);
131 static int et_encap(struct et_softc *, struct mbuf **);
132 static int et_newbuf_cluster(struct et_rxbuf_data *, int);
133 static int et_newbuf_hdr(struct et_rxbuf_data *, int);
134 static void et_rxbuf_discard(struct et_rxbuf_data *, int);
136 static void et_stop(struct et_softc *);
137 static int et_chip_init(struct et_softc *);
138 static void et_chip_attach(struct et_softc *);
139 static void et_init_mac(struct et_softc *);
140 static void et_init_rxmac(struct et_softc *);
141 static void et_init_txmac(struct et_softc *);
142 static int et_init_rxdma(struct et_softc *);
143 static int et_init_txdma(struct et_softc *);
144 static int et_start_rxdma(struct et_softc *);
145 static int et_start_txdma(struct et_softc *);
146 static int et_stop_rxdma(struct et_softc *);
147 static int et_stop_txdma(struct et_softc *);
148 static void et_reset(struct et_softc *);
149 static int et_bus_config(struct et_softc *);
150 static void et_get_eaddr(device_t, uint8_t[]);
151 static void et_setmulti(struct et_softc *);
152 static void et_tick(void *);
153 static void et_stats_update(struct et_softc *);
155 static const struct et_dev {
160 { PCI_VENDOR_LUCENT, PCI_PRODUCT_LUCENT_ET1310,
161 "Agere ET1310 Gigabit Ethernet" },
162 { PCI_VENDOR_LUCENT, PCI_PRODUCT_LUCENT_ET1310_FAST,
163 "Agere ET1310 Fast Ethernet" },
167 static device_method_t et_methods[] = {
168 DEVMETHOD(device_probe, et_probe),
169 DEVMETHOD(device_attach, et_attach),
170 DEVMETHOD(device_detach, et_detach),
171 DEVMETHOD(device_shutdown, et_shutdown),
172 DEVMETHOD(device_suspend, et_suspend),
173 DEVMETHOD(device_resume, et_resume),
175 DEVMETHOD(miibus_readreg, et_miibus_readreg),
176 DEVMETHOD(miibus_writereg, et_miibus_writereg),
177 DEVMETHOD(miibus_statchg, et_miibus_statchg),
182 static driver_t et_driver = {
185 sizeof(struct et_softc)
188 static devclass_t et_devclass;
190 DRIVER_MODULE(et, pci, et_driver, et_devclass, 0, 0);
191 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, et, et_devices,
192 nitems(et_devices) - 1);
193 DRIVER_MODULE(miibus, et, miibus_driver, 0, 0);
195 static int et_rx_intr_npkts = 32;
196 static int et_rx_intr_delay = 20; /* x10 usec */
197 static int et_tx_intr_nsegs = 126;
198 static uint32_t et_timer = 1000 * 1000 * 1000; /* nanosec */
200 TUNABLE_INT("hw.et.timer", &et_timer);
201 TUNABLE_INT("hw.et.rx_intr_npkts", &et_rx_intr_npkts);
202 TUNABLE_INT("hw.et.rx_intr_delay", &et_rx_intr_delay);
203 TUNABLE_INT("hw.et.tx_intr_nsegs", &et_tx_intr_nsegs);
206 et_probe(device_t dev)
208 const struct et_dev *d;
211 vid = pci_get_vendor(dev);
212 did = pci_get_device(dev);
214 for (d = et_devices; d->desc != NULL; ++d) {
215 if (vid == d->vid && did == d->did) {
216 device_set_desc(dev, d->desc);
217 return (BUS_PROBE_DEFAULT);
224 et_attach(device_t dev)
228 uint8_t eaddr[ETHER_ADDR_LEN];
230 int cap, error, msic;
232 sc = device_get_softc(dev);
234 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
236 callout_init_mtx(&sc->sc_tick, &sc->sc_mtx, 0);
238 ifp = sc->ifp = if_alloc(IFT_ETHER);
240 device_printf(dev, "can not if_alloc()\n");
246 * Initialize tunables
248 sc->sc_rx_intr_npkts = et_rx_intr_npkts;
249 sc->sc_rx_intr_delay = et_rx_intr_delay;
250 sc->sc_tx_intr_nsegs = et_tx_intr_nsegs;
251 sc->sc_timer = et_timer;
253 /* Enable bus mastering */
254 pci_enable_busmaster(dev);
259 sc->sc_mem_rid = PCIR_BAR(0);
260 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
261 &sc->sc_mem_rid, RF_ACTIVE);
262 if (sc->sc_mem_res == NULL) {
263 device_printf(dev, "can't allocate IO memory\n");
268 if (pci_find_cap(dev, PCIY_EXPRESS, &cap) == 0) {
270 sc->sc_flags |= ET_FLAG_PCIE;
271 msic = pci_msi_count(dev);
273 device_printf(dev, "MSI count: %d\n", msic);
275 if (msic > 0 && msi_disable == 0) {
277 if (pci_alloc_msi(dev, &msic) == 0) {
279 device_printf(dev, "Using %d MSI message\n",
281 sc->sc_flags |= ET_FLAG_MSI;
283 pci_release_msi(dev);
290 if ((sc->sc_flags & ET_FLAG_MSI) == 0) {
292 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
293 &sc->sc_irq_rid, RF_SHAREABLE | RF_ACTIVE);
296 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
297 &sc->sc_irq_rid, RF_ACTIVE);
299 if (sc->sc_irq_res == NULL) {
300 device_printf(dev, "can't allocate irq\n");
305 if (pci_get_device(dev) == PCI_PRODUCT_LUCENT_ET1310_FAST)
306 sc->sc_flags |= ET_FLAG_FASTETHER;
308 error = et_bus_config(sc);
312 et_get_eaddr(dev, eaddr);
314 /* Take PHY out of COMA and enable clocks. */
315 pmcfg = ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE | ET_PM_RXCLK_GATE;
316 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
317 pmcfg |= EM_PM_GIGEPHY_ENB;
318 CSR_WRITE_4(sc, ET_PM, pmcfg);
322 error = et_dma_alloc(sc);
327 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
328 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
329 ifp->if_init = et_init;
330 ifp->if_ioctl = et_ioctl;
331 ifp->if_start = et_start;
332 ifp->if_get_counter = et_get_counter;
333 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_VLAN_MTU;
334 ifp->if_capenable = ifp->if_capabilities;
335 ifp->if_snd.ifq_drv_maxlen = ET_TX_NDESC - 1;
336 IFQ_SET_MAXLEN(&ifp->if_snd, ET_TX_NDESC - 1);
337 IFQ_SET_READY(&ifp->if_snd);
341 error = mii_attach(dev, &sc->sc_miibus, ifp, et_ifmedia_upd,
342 et_ifmedia_sts, BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY,
345 device_printf(dev, "attaching PHYs failed\n");
349 ether_ifattach(ifp, eaddr);
351 /* Tell the upper layer(s) we support long frames. */
352 ifp->if_hdrlen = sizeof(struct ether_vlan_header);
354 error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_NET | INTR_MPSAFE,
355 NULL, et_intr, sc, &sc->sc_irq_handle);
358 device_printf(dev, "can't setup intr\n");
371 et_detach(device_t dev)
375 sc = device_get_softc(dev);
376 if (device_is_attached(dev)) {
377 ether_ifdetach(sc->ifp);
381 callout_drain(&sc->sc_tick);
384 if (sc->sc_miibus != NULL)
385 device_delete_child(dev, sc->sc_miibus);
386 bus_generic_detach(dev);
388 if (sc->sc_irq_handle != NULL)
389 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
390 if (sc->sc_irq_res != NULL)
391 bus_release_resource(dev, SYS_RES_IRQ,
392 rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
393 if ((sc->sc_flags & ET_FLAG_MSI) != 0)
394 pci_release_msi(dev);
395 if (sc->sc_mem_res != NULL)
396 bus_release_resource(dev, SYS_RES_MEMORY,
397 rman_get_rid(sc->sc_mem_res), sc->sc_mem_res);
404 mtx_destroy(&sc->sc_mtx);
410 et_shutdown(device_t dev)
414 sc = device_get_softc(dev);
422 et_miibus_readreg(device_t dev, int phy, int reg)
428 sc = device_get_softc(dev);
429 /* Stop any pending operations */
430 CSR_WRITE_4(sc, ET_MII_CMD, 0);
432 val = (phy << ET_MII_ADDR_PHY_SHIFT) & ET_MII_ADDR_PHY_MASK;
433 val |= (reg << ET_MII_ADDR_REG_SHIFT) & ET_MII_ADDR_REG_MASK;
434 CSR_WRITE_4(sc, ET_MII_ADDR, val);
437 CSR_WRITE_4(sc, ET_MII_CMD, ET_MII_CMD_READ);
441 for (i = 0; i < NRETRY; ++i) {
442 val = CSR_READ_4(sc, ET_MII_IND);
443 if ((val & (ET_MII_IND_BUSY | ET_MII_IND_INVALID)) == 0)
449 "read phy %d, reg %d timed out\n", phy, reg);
456 val = CSR_READ_4(sc, ET_MII_STAT);
457 ret = val & ET_MII_STAT_VALUE_MASK;
460 /* Make sure that the current operation is stopped */
461 CSR_WRITE_4(sc, ET_MII_CMD, 0);
466 et_miibus_writereg(device_t dev, int phy, int reg, int val0)
472 sc = device_get_softc(dev);
473 /* Stop any pending operations */
474 CSR_WRITE_4(sc, ET_MII_CMD, 0);
476 val = (phy << ET_MII_ADDR_PHY_SHIFT) & ET_MII_ADDR_PHY_MASK;
477 val |= (reg << ET_MII_ADDR_REG_SHIFT) & ET_MII_ADDR_REG_MASK;
478 CSR_WRITE_4(sc, ET_MII_ADDR, val);
481 CSR_WRITE_4(sc, ET_MII_CTRL,
482 (val0 << ET_MII_CTRL_VALUE_SHIFT) & ET_MII_CTRL_VALUE_MASK);
486 for (i = 0; i < NRETRY; ++i) {
487 val = CSR_READ_4(sc, ET_MII_IND);
488 if ((val & ET_MII_IND_BUSY) == 0)
494 "write phy %d, reg %d timed out\n", phy, reg);
495 et_miibus_readreg(dev, phy, reg);
500 /* Make sure that the current operation is stopped */
501 CSR_WRITE_4(sc, ET_MII_CMD, 0);
506 et_miibus_statchg(device_t dev)
509 struct mii_data *mii;
511 uint32_t cfg1, cfg2, ctrl;
514 sc = device_get_softc(dev);
516 mii = device_get_softc(sc->sc_miibus);
518 if (mii == NULL || ifp == NULL ||
519 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
522 sc->sc_flags &= ~ET_FLAG_LINK;
523 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
524 (IFM_ACTIVE | IFM_AVALID)) {
525 switch (IFM_SUBTYPE(mii->mii_media_active)) {
528 sc->sc_flags |= ET_FLAG_LINK;
531 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
532 sc->sc_flags |= ET_FLAG_LINK;
537 /* XXX Stop TX/RX MAC? */
538 if ((sc->sc_flags & ET_FLAG_LINK) == 0)
541 /* Program MACs with resolved speed/duplex/flow-control. */
542 ctrl = CSR_READ_4(sc, ET_MAC_CTRL);
543 ctrl &= ~(ET_MAC_CTRL_GHDX | ET_MAC_CTRL_MODE_MII);
544 cfg1 = CSR_READ_4(sc, ET_MAC_CFG1);
545 cfg1 &= ~(ET_MAC_CFG1_TXFLOW | ET_MAC_CFG1_RXFLOW |
546 ET_MAC_CFG1_LOOPBACK);
547 cfg2 = CSR_READ_4(sc, ET_MAC_CFG2);
548 cfg2 &= ~(ET_MAC_CFG2_MODE_MII | ET_MAC_CFG2_MODE_GMII |
549 ET_MAC_CFG2_FDX | ET_MAC_CFG2_BIGFRM);
550 cfg2 |= ET_MAC_CFG2_LENCHK | ET_MAC_CFG2_CRC | ET_MAC_CFG2_PADCRC |
551 ((7 << ET_MAC_CFG2_PREAMBLE_LEN_SHIFT) &
552 ET_MAC_CFG2_PREAMBLE_LEN_MASK);
554 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T)
555 cfg2 |= ET_MAC_CFG2_MODE_GMII;
557 cfg2 |= ET_MAC_CFG2_MODE_MII;
558 ctrl |= ET_MAC_CTRL_MODE_MII;
561 if (IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) {
562 cfg2 |= ET_MAC_CFG2_FDX;
564 * Controller lacks automatic TX pause frame
565 * generation so it should be handled by driver.
566 * Even though driver can send pause frame with
567 * arbitrary pause time, controller does not
568 * provide a way that tells how many free RX
569 * buffers are available in controller. This
570 * limitation makes it hard to generate XON frame
571 * in time on driver side so don't enable TX flow
575 if (IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE)
576 cfg1 |= ET_MAC_CFG1_TXFLOW;
578 if (IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE)
579 cfg1 |= ET_MAC_CFG1_RXFLOW;
581 ctrl |= ET_MAC_CTRL_GHDX;
583 CSR_WRITE_4(sc, ET_MAC_CTRL, ctrl);
584 CSR_WRITE_4(sc, ET_MAC_CFG2, cfg2);
585 cfg1 |= ET_MAC_CFG1_TXEN | ET_MAC_CFG1_RXEN;
586 CSR_WRITE_4(sc, ET_MAC_CFG1, cfg1);
590 for (i = 0; i < NRETRY; ++i) {
591 cfg1 = CSR_READ_4(sc, ET_MAC_CFG1);
592 if ((cfg1 & (ET_MAC_CFG1_SYNC_TXEN | ET_MAC_CFG1_SYNC_RXEN)) ==
593 (ET_MAC_CFG1_SYNC_TXEN | ET_MAC_CFG1_SYNC_RXEN))
598 if_printf(ifp, "can't enable RX/TX\n");
599 sc->sc_flags |= ET_FLAG_TXRX_ENABLED;
605 et_ifmedia_upd_locked(struct ifnet *ifp)
608 struct mii_data *mii;
609 struct mii_softc *miisc;
612 mii = device_get_softc(sc->sc_miibus);
613 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
615 return (mii_mediachg(mii));
619 et_ifmedia_upd(struct ifnet *ifp)
626 res = et_ifmedia_upd_locked(ifp);
633 et_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
636 struct mii_data *mii;
640 if ((ifp->if_flags & IFF_UP) == 0) {
645 mii = device_get_softc(sc->sc_miibus);
647 ifmr->ifm_active = mii->mii_media_active;
648 ifmr->ifm_status = mii->mii_media_status;
653 et_stop(struct et_softc *sc)
660 callout_stop(&sc->sc_tick);
661 /* Disable interrupts. */
662 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
664 CSR_WRITE_4(sc, ET_MAC_CFG1, CSR_READ_4(sc, ET_MAC_CFG1) & ~(
665 ET_MAC_CFG1_TXEN | ET_MAC_CFG1_RXEN));
677 sc->sc_flags &= ~ET_FLAG_TXRX_ENABLED;
679 sc->watchdog_timer = 0;
680 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
684 et_bus_config(struct et_softc *sc)
686 uint32_t val, max_plsz;
687 uint16_t ack_latency, replay_timer;
690 * Test whether EEPROM is valid
691 * NOTE: Read twice to get the correct value
693 pci_read_config(sc->dev, ET_PCIR_EEPROM_STATUS, 1);
694 val = pci_read_config(sc->dev, ET_PCIR_EEPROM_STATUS, 1);
695 if (val & ET_PCIM_EEPROM_STATUS_ERROR) {
696 device_printf(sc->dev, "EEPROM status error 0x%02x\n", val);
702 if ((sc->sc_flags & ET_FLAG_PCIE) == 0)
706 * Configure ACK latency and replay timer according to
709 val = pci_read_config(sc->dev,
710 sc->sc_expcap + PCIER_DEVICE_CAP, 4);
711 max_plsz = val & PCIEM_CAP_MAX_PAYLOAD;
714 case ET_PCIV_DEVICE_CAPS_PLSZ_128:
715 ack_latency = ET_PCIV_ACK_LATENCY_128;
716 replay_timer = ET_PCIV_REPLAY_TIMER_128;
719 case ET_PCIV_DEVICE_CAPS_PLSZ_256:
720 ack_latency = ET_PCIV_ACK_LATENCY_256;
721 replay_timer = ET_PCIV_REPLAY_TIMER_256;
725 ack_latency = pci_read_config(sc->dev, ET_PCIR_ACK_LATENCY, 2);
726 replay_timer = pci_read_config(sc->dev,
727 ET_PCIR_REPLAY_TIMER, 2);
728 device_printf(sc->dev, "ack latency %u, replay timer %u\n",
729 ack_latency, replay_timer);
732 if (ack_latency != 0) {
733 pci_write_config(sc->dev, ET_PCIR_ACK_LATENCY, ack_latency, 2);
734 pci_write_config(sc->dev, ET_PCIR_REPLAY_TIMER, replay_timer,
739 * Set L0s and L1 latency timer to 2us
741 val = pci_read_config(sc->dev, ET_PCIR_L0S_L1_LATENCY, 4);
742 val &= ~(PCIEM_LINK_CAP_L0S_EXIT | PCIEM_LINK_CAP_L1_EXIT);
743 /* L0s exit latency : 2us */
745 /* L1 exit latency : 2us */
747 pci_write_config(sc->dev, ET_PCIR_L0S_L1_LATENCY, val, 4);
750 * Set max read request size to 2048 bytes
752 pci_set_max_read_req(sc->dev, 2048);
758 et_get_eaddr(device_t dev, uint8_t eaddr[])
763 val = pci_read_config(dev, ET_PCIR_MAC_ADDR0, 4);
764 for (i = 0; i < 4; ++i)
765 eaddr[i] = (val >> (8 * i)) & 0xff;
767 val = pci_read_config(dev, ET_PCIR_MAC_ADDR1, 2);
768 for (; i < ETHER_ADDR_LEN; ++i)
769 eaddr[i] = (val >> (8 * (i - 4))) & 0xff;
773 et_reset(struct et_softc *sc)
776 CSR_WRITE_4(sc, ET_MAC_CFG1,
777 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
778 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
779 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
781 CSR_WRITE_4(sc, ET_SWRST,
782 ET_SWRST_TXDMA | ET_SWRST_RXDMA |
783 ET_SWRST_TXMAC | ET_SWRST_RXMAC |
784 ET_SWRST_MAC | ET_SWRST_MAC_STAT | ET_SWRST_MMC);
786 CSR_WRITE_4(sc, ET_MAC_CFG1,
787 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
788 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC);
789 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
790 /* Disable interrupts. */
791 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
794 struct et_dmamap_arg {
795 bus_addr_t et_busaddr;
799 et_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
801 struct et_dmamap_arg *ctx;
806 KASSERT(nseg == 1, ("%s: %d segments returned!", __func__, nseg));
809 ctx->et_busaddr = segs->ds_addr;
813 et_dma_ring_alloc(struct et_softc *sc, bus_size_t alignment, bus_size_t maxsize,
814 bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, bus_addr_t *paddr,
817 struct et_dmamap_arg ctx;
820 error = bus_dma_tag_create(sc->sc_dtag, alignment, 0, BUS_SPACE_MAXADDR,
821 BUS_SPACE_MAXADDR, NULL, NULL, maxsize, 1, maxsize, 0, NULL, NULL,
824 device_printf(sc->dev, "could not create %s dma tag\n", msg);
827 /* Allocate DMA'able memory for ring. */
828 error = bus_dmamem_alloc(*tag, (void **)ring,
829 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, map);
831 device_printf(sc->dev,
832 "could not allocate DMA'able memory for %s\n", msg);
835 /* Load the address of the ring. */
837 error = bus_dmamap_load(*tag, *map, *ring, maxsize, et_dma_map_addr,
838 &ctx, BUS_DMA_NOWAIT);
840 device_printf(sc->dev,
841 "could not load DMA'able memory for %s\n", msg);
844 *paddr = ctx.et_busaddr;
849 et_dma_ring_free(struct et_softc *sc, bus_dma_tag_t *tag, uint8_t **ring,
850 bus_dmamap_t map, bus_addr_t *paddr)
854 bus_dmamap_unload(*tag, map);
858 bus_dmamem_free(*tag, *ring, map);
862 bus_dma_tag_destroy(*tag);
868 et_dma_alloc(struct et_softc *sc)
870 struct et_txdesc_ring *tx_ring;
871 struct et_rxdesc_ring *rx_ring;
872 struct et_rxstat_ring *rxst_ring;
873 struct et_rxstatus_data *rxsd;
874 struct et_rxbuf_data *rbd;
875 struct et_txbuf_data *tbd;
876 struct et_txstatus_data *txsd;
879 error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
880 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
881 BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
884 device_printf(sc->dev, "could not allocate parent dma tag\n");
889 tx_ring = &sc->sc_tx_ring;
890 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_TX_RING_SIZE,
891 &tx_ring->tr_dtag, (uint8_t **)&tx_ring->tr_desc, &tx_ring->tr_dmap,
892 &tx_ring->tr_paddr, "TX ring");
896 /* TX status block. */
897 txsd = &sc->sc_tx_status;
898 error = et_dma_ring_alloc(sc, ET_STATUS_ALIGN, sizeof(uint32_t),
899 &txsd->txsd_dtag, (uint8_t **)&txsd->txsd_status, &txsd->txsd_dmap,
900 &txsd->txsd_paddr, "TX status block");
904 /* RX ring 0, used as to recive small sized frames. */
905 rx_ring = &sc->sc_rx_ring[0];
906 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RX_RING_SIZE,
907 &rx_ring->rr_dtag, (uint8_t **)&rx_ring->rr_desc, &rx_ring->rr_dmap,
908 &rx_ring->rr_paddr, "RX ring 0");
909 rx_ring->rr_posreg = ET_RX_RING0_POS;
913 /* RX ring 1, used as to store normal sized frames. */
914 rx_ring = &sc->sc_rx_ring[1];
915 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RX_RING_SIZE,
916 &rx_ring->rr_dtag, (uint8_t **)&rx_ring->rr_desc, &rx_ring->rr_dmap,
917 &rx_ring->rr_paddr, "RX ring 1");
918 rx_ring->rr_posreg = ET_RX_RING1_POS;
923 rxst_ring = &sc->sc_rxstat_ring;
924 error = et_dma_ring_alloc(sc, ET_RING_ALIGN, ET_RXSTAT_RING_SIZE,
925 &rxst_ring->rsr_dtag, (uint8_t **)&rxst_ring->rsr_stat,
926 &rxst_ring->rsr_dmap, &rxst_ring->rsr_paddr, "RX stat ring");
930 /* RX status block. */
931 rxsd = &sc->sc_rx_status;
932 error = et_dma_ring_alloc(sc, ET_STATUS_ALIGN,
933 sizeof(struct et_rxstatus), &rxsd->rxsd_dtag,
934 (uint8_t **)&rxsd->rxsd_status, &rxsd->rxsd_dmap,
935 &rxsd->rxsd_paddr, "RX status block");
939 /* Create parent DMA tag for mbufs. */
940 error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
941 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
942 BUS_SPACE_MAXSIZE_32BIT, 0, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
945 device_printf(sc->dev,
946 "could not allocate parent dma tag for mbuf\n");
950 /* Create DMA tag for mini RX mbufs to use RX ring 0. */
951 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
952 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MHLEN, 1,
953 MHLEN, 0, NULL, NULL, &sc->sc_rx_mini_tag);
955 device_printf(sc->dev, "could not create mini RX dma tag\n");
959 /* Create DMA tag for standard RX mbufs to use RX ring 1. */
960 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
961 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1,
962 MCLBYTES, 0, NULL, NULL, &sc->sc_rx_tag);
964 device_printf(sc->dev, "could not create RX dma tag\n");
968 /* Create DMA tag for TX mbufs. */
969 error = bus_dma_tag_create(sc->sc_mbuf_dtag, 1, 0,
970 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
971 MCLBYTES * ET_NSEG_MAX, ET_NSEG_MAX, MCLBYTES, 0, NULL, NULL,
974 device_printf(sc->dev, "could not create TX dma tag\n");
978 /* Initialize RX ring 0. */
979 rbd = &sc->sc_rx_data[0];
980 rbd->rbd_bufsize = ET_RXDMA_CTRL_RING0_128;
981 rbd->rbd_newbuf = et_newbuf_hdr;
982 rbd->rbd_discard = et_rxbuf_discard;
984 rbd->rbd_ring = &sc->sc_rx_ring[0];
985 /* Create DMA maps for mini RX buffers, ring 0. */
986 for (i = 0; i < ET_RX_NDESC; i++) {
987 error = bus_dmamap_create(sc->sc_rx_mini_tag, 0,
988 &rbd->rbd_buf[i].rb_dmap);
990 device_printf(sc->dev,
991 "could not create DMA map for mini RX mbufs\n");
996 /* Create a spare DMA map for mini RX buffers, ring 0. */
997 error = bus_dmamap_create(sc->sc_rx_mini_tag, 0,
998 &sc->sc_rx_mini_sparemap);
1000 device_printf(sc->dev,
1001 "could not create spare DMA map for mini RX mbuf\n");
1005 /* Initialize RX ring 1. */
1006 rbd = &sc->sc_rx_data[1];
1007 rbd->rbd_bufsize = ET_RXDMA_CTRL_RING1_2048;
1008 rbd->rbd_newbuf = et_newbuf_cluster;
1009 rbd->rbd_discard = et_rxbuf_discard;
1010 rbd->rbd_softc = sc;
1011 rbd->rbd_ring = &sc->sc_rx_ring[1];
1012 /* Create DMA maps for standard RX buffers, ring 1. */
1013 for (i = 0; i < ET_RX_NDESC; i++) {
1014 error = bus_dmamap_create(sc->sc_rx_tag, 0,
1015 &rbd->rbd_buf[i].rb_dmap);
1017 device_printf(sc->dev,
1018 "could not create DMA map for mini RX mbufs\n");
1023 /* Create a spare DMA map for standard RX buffers, ring 1. */
1024 error = bus_dmamap_create(sc->sc_rx_tag, 0, &sc->sc_rx_sparemap);
1026 device_printf(sc->dev,
1027 "could not create spare DMA map for RX mbuf\n");
1031 /* Create DMA maps for TX buffers. */
1032 tbd = &sc->sc_tx_data;
1033 for (i = 0; i < ET_TX_NDESC; i++) {
1034 error = bus_dmamap_create(sc->sc_tx_tag, 0,
1035 &tbd->tbd_buf[i].tb_dmap);
1037 device_printf(sc->dev,
1038 "could not create DMA map for TX mbufs\n");
1047 et_dma_free(struct et_softc *sc)
1049 struct et_txdesc_ring *tx_ring;
1050 struct et_rxdesc_ring *rx_ring;
1051 struct et_txstatus_data *txsd;
1052 struct et_rxstat_ring *rxst_ring;
1053 struct et_rxbuf_data *rbd;
1054 struct et_txbuf_data *tbd;
1057 /* Destroy DMA maps for mini RX buffers, ring 0. */
1058 rbd = &sc->sc_rx_data[0];
1059 for (i = 0; i < ET_RX_NDESC; i++) {
1060 if (rbd->rbd_buf[i].rb_dmap) {
1061 bus_dmamap_destroy(sc->sc_rx_mini_tag,
1062 rbd->rbd_buf[i].rb_dmap);
1063 rbd->rbd_buf[i].rb_dmap = NULL;
1066 if (sc->sc_rx_mini_sparemap) {
1067 bus_dmamap_destroy(sc->sc_rx_mini_tag, sc->sc_rx_mini_sparemap);
1068 sc->sc_rx_mini_sparemap = NULL;
1070 if (sc->sc_rx_mini_tag) {
1071 bus_dma_tag_destroy(sc->sc_rx_mini_tag);
1072 sc->sc_rx_mini_tag = NULL;
1075 /* Destroy DMA maps for standard RX buffers, ring 1. */
1076 rbd = &sc->sc_rx_data[1];
1077 for (i = 0; i < ET_RX_NDESC; i++) {
1078 if (rbd->rbd_buf[i].rb_dmap) {
1079 bus_dmamap_destroy(sc->sc_rx_tag,
1080 rbd->rbd_buf[i].rb_dmap);
1081 rbd->rbd_buf[i].rb_dmap = NULL;
1084 if (sc->sc_rx_sparemap) {
1085 bus_dmamap_destroy(sc->sc_rx_tag, sc->sc_rx_sparemap);
1086 sc->sc_rx_sparemap = NULL;
1088 if (sc->sc_rx_tag) {
1089 bus_dma_tag_destroy(sc->sc_rx_tag);
1090 sc->sc_rx_tag = NULL;
1093 /* Destroy DMA maps for TX buffers. */
1094 tbd = &sc->sc_tx_data;
1095 for (i = 0; i < ET_TX_NDESC; i++) {
1096 if (tbd->tbd_buf[i].tb_dmap) {
1097 bus_dmamap_destroy(sc->sc_tx_tag,
1098 tbd->tbd_buf[i].tb_dmap);
1099 tbd->tbd_buf[i].tb_dmap = NULL;
1102 if (sc->sc_tx_tag) {
1103 bus_dma_tag_destroy(sc->sc_tx_tag);
1104 sc->sc_tx_tag = NULL;
1107 /* Destroy mini RX ring, ring 0. */
1108 rx_ring = &sc->sc_rx_ring[0];
1109 et_dma_ring_free(sc, &rx_ring->rr_dtag, (void *)&rx_ring->rr_desc,
1110 rx_ring->rr_dmap, &rx_ring->rr_paddr);
1111 /* Destroy standard RX ring, ring 1. */
1112 rx_ring = &sc->sc_rx_ring[1];
1113 et_dma_ring_free(sc, &rx_ring->rr_dtag, (void *)&rx_ring->rr_desc,
1114 rx_ring->rr_dmap, &rx_ring->rr_paddr);
1115 /* Destroy RX stat ring. */
1116 rxst_ring = &sc->sc_rxstat_ring;
1117 et_dma_ring_free(sc, &rxst_ring->rsr_dtag, (void *)&rxst_ring->rsr_stat,
1118 rxst_ring->rsr_dmap, &rxst_ring->rsr_paddr);
1119 /* Destroy RX status block. */
1120 et_dma_ring_free(sc, &rxst_ring->rsr_dtag, (void *)&rxst_ring->rsr_stat,
1121 rxst_ring->rsr_dmap, &rxst_ring->rsr_paddr);
1122 /* Destroy TX ring. */
1123 tx_ring = &sc->sc_tx_ring;
1124 et_dma_ring_free(sc, &tx_ring->tr_dtag, (void *)&tx_ring->tr_desc,
1125 tx_ring->tr_dmap, &tx_ring->tr_paddr);
1126 /* Destroy TX status block. */
1127 txsd = &sc->sc_tx_status;
1128 et_dma_ring_free(sc, &txsd->txsd_dtag, (void *)&txsd->txsd_status,
1129 txsd->txsd_dmap, &txsd->txsd_paddr);
1131 /* Destroy the parent tag. */
1133 bus_dma_tag_destroy(sc->sc_dtag);
1139 et_chip_attach(struct et_softc *sc)
1144 * Perform minimal initialization
1147 /* Disable loopback */
1148 CSR_WRITE_4(sc, ET_LOOPBACK, 0);
1151 CSR_WRITE_4(sc, ET_MAC_CFG1,
1152 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
1153 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
1154 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
1157 * Setup half duplex mode
1159 val = (10 << ET_MAC_HDX_ALT_BEB_TRUNC_SHIFT) |
1160 (15 << ET_MAC_HDX_REXMIT_MAX_SHIFT) |
1161 (55 << ET_MAC_HDX_COLLWIN_SHIFT) |
1162 ET_MAC_HDX_EXC_DEFER;
1163 CSR_WRITE_4(sc, ET_MAC_HDX, val);
1165 /* Clear MAC control */
1166 CSR_WRITE_4(sc, ET_MAC_CTRL, 0);
1169 CSR_WRITE_4(sc, ET_MII_CFG, ET_MII_CFG_CLKRST);
1171 /* Bring MAC out of reset state */
1172 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
1174 /* Enable memory controllers */
1175 CSR_WRITE_4(sc, ET_MMC_CTRL, ET_MMC_CTRL_ENABLE);
1181 struct et_softc *sc;
1188 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
1191 status = CSR_READ_4(sc, ET_INTR_STATUS);
1192 if ((status & ET_INTRS) == 0)
1195 /* Disable further interrupts. */
1196 CSR_WRITE_4(sc, ET_INTR_MASK, 0xffffffff);
1198 if (status & (ET_INTR_RXDMA_ERROR | ET_INTR_TXDMA_ERROR)) {
1199 device_printf(sc->dev, "DMA error(0x%08x) -- resetting\n",
1201 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1206 if (status & ET_INTR_RXDMA)
1208 if (status & (ET_INTR_TXDMA | ET_INTR_TIMER))
1210 if (status & ET_INTR_TIMER)
1211 CSR_WRITE_4(sc, ET_TIMER, sc->sc_timer);
1212 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1213 CSR_WRITE_4(sc, ET_INTR_MASK, ~ET_INTRS);
1214 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
1215 et_start_locked(ifp);
1222 et_init_locked(struct et_softc *sc)
1230 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1236 et_init_tx_ring(sc);
1237 error = et_init_rx_ring(sc);
1241 error = et_chip_init(sc);
1246 * Start TX/RX DMA engine
1248 error = et_start_rxdma(sc);
1252 error = et_start_txdma(sc);
1256 /* Enable interrupts. */
1257 CSR_WRITE_4(sc, ET_INTR_MASK, ~ET_INTRS);
1259 CSR_WRITE_4(sc, ET_TIMER, sc->sc_timer);
1261 ifp->if_drv_flags |= IFF_DRV_RUNNING;
1262 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1264 sc->sc_flags &= ~ET_FLAG_LINK;
1265 et_ifmedia_upd_locked(ifp);
1267 callout_reset(&sc->sc_tick, hz, et_tick, sc);
1277 struct et_softc *sc = xsc;
1285 et_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1287 struct et_softc *sc;
1288 struct mii_data *mii;
1290 int error, mask, max_framelen;
1293 ifr = (struct ifreq *)data;
1300 if (ifp->if_flags & IFF_UP) {
1301 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1302 if ((ifp->if_flags ^ sc->sc_if_flags) &
1303 (IFF_ALLMULTI | IFF_PROMISC | IFF_BROADCAST))
1309 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1312 sc->sc_if_flags = ifp->if_flags;
1318 mii = device_get_softc(sc->sc_miibus);
1319 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
1324 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1334 if (sc->sc_flags & ET_FLAG_JUMBO)
1335 max_framelen = ET_JUMBO_FRAMELEN;
1338 max_framelen = MCLBYTES - 1;
1340 if (ET_FRAMELEN(ifr->ifr_mtu) > max_framelen) {
1346 if (ifp->if_mtu != ifr->ifr_mtu) {
1347 ifp->if_mtu = ifr->ifr_mtu;
1348 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
1349 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1358 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1359 if ((mask & IFCAP_TXCSUM) != 0 &&
1360 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) {
1361 ifp->if_capenable ^= IFCAP_TXCSUM;
1362 if ((IFCAP_TXCSUM & ifp->if_capenable) != 0)
1363 ifp->if_hwassist |= ET_CSUM_FEATURES;
1365 ifp->if_hwassist &= ~ET_CSUM_FEATURES;
1371 error = ether_ioctl(ifp, cmd, data);
1378 et_start_locked(struct ifnet *ifp)
1380 struct et_softc *sc;
1381 struct mbuf *m_head = NULL;
1382 struct et_txdesc_ring *tx_ring;
1383 struct et_txbuf_data *tbd;
1384 uint32_t tx_ready_pos;
1390 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
1392 (sc->sc_flags & (ET_FLAG_LINK | ET_FLAG_TXRX_ENABLED)) !=
1393 (ET_FLAG_LINK | ET_FLAG_TXRX_ENABLED))
1397 * Driver does not request TX completion interrupt for every
1398 * queued frames to prevent generating excessive interrupts.
1399 * This means driver may wait for TX completion interrupt even
1400 * though some frames were successfully transmitted. Reclaiming
1401 * transmitted frames will ensure driver see all available
1404 tbd = &sc->sc_tx_data;
1405 if (tbd->tbd_used > (ET_TX_NDESC * 2) / 3)
1408 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd); ) {
1409 if (tbd->tbd_used + ET_NSEG_SPARE >= ET_TX_NDESC) {
1410 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1414 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
1418 if (et_encap(sc, &m_head)) {
1419 if (m_head == NULL) {
1420 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
1423 IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
1424 if (tbd->tbd_used > 0)
1425 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1429 ETHER_BPF_MTAP(ifp, m_head);
1433 tx_ring = &sc->sc_tx_ring;
1434 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
1435 BUS_DMASYNC_PREWRITE);
1436 tx_ready_pos = tx_ring->tr_ready_index &
1437 ET_TX_READY_POS_INDEX_MASK;
1438 if (tx_ring->tr_ready_wrap)
1439 tx_ready_pos |= ET_TX_READY_POS_WRAP;
1440 CSR_WRITE_4(sc, ET_TX_READY_POS, tx_ready_pos);
1441 sc->watchdog_timer = 5;
1446 et_start(struct ifnet *ifp)
1448 struct et_softc *sc;
1452 et_start_locked(ifp);
1457 et_watchdog(struct et_softc *sc)
1463 if (sc->watchdog_timer == 0 || --sc->watchdog_timer)
1466 bus_dmamap_sync(sc->sc_tx_status.txsd_dtag, sc->sc_tx_status.txsd_dmap,
1467 BUS_DMASYNC_POSTREAD);
1468 status = le32toh(*(sc->sc_tx_status.txsd_status));
1469 if_printf(sc->ifp, "watchdog timed out (0x%08x) -- resetting\n",
1472 if_inc_counter(sc->ifp, IFCOUNTER_OERRORS, 1);
1473 sc->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1475 return (EJUSTRETURN);
1479 et_stop_rxdma(struct et_softc *sc)
1482 CSR_WRITE_4(sc, ET_RXDMA_CTRL,
1483 ET_RXDMA_CTRL_HALT | ET_RXDMA_CTRL_RING1_ENABLE);
1486 if ((CSR_READ_4(sc, ET_RXDMA_CTRL) & ET_RXDMA_CTRL_HALTED) == 0) {
1487 if_printf(sc->ifp, "can't stop RX DMA engine\n");
1494 et_stop_txdma(struct et_softc *sc)
1497 CSR_WRITE_4(sc, ET_TXDMA_CTRL,
1498 ET_TXDMA_CTRL_HALT | ET_TXDMA_CTRL_SINGLE_EPKT);
1503 et_free_tx_ring(struct et_softc *sc)
1505 struct et_txbuf_data *tbd;
1506 struct et_txbuf *tb;
1509 tbd = &sc->sc_tx_data;
1510 for (i = 0; i < ET_TX_NDESC; ++i) {
1511 tb = &tbd->tbd_buf[i];
1512 if (tb->tb_mbuf != NULL) {
1513 bus_dmamap_sync(sc->sc_tx_tag, tb->tb_dmap,
1514 BUS_DMASYNC_POSTWRITE);
1515 bus_dmamap_unload(sc->sc_mbuf_dtag, tb->tb_dmap);
1516 m_freem(tb->tb_mbuf);
1523 et_free_rx_ring(struct et_softc *sc)
1525 struct et_rxbuf_data *rbd;
1526 struct et_rxdesc_ring *rx_ring;
1527 struct et_rxbuf *rb;
1531 rx_ring = &sc->sc_rx_ring[0];
1532 rbd = &sc->sc_rx_data[0];
1533 for (i = 0; i < ET_RX_NDESC; ++i) {
1534 rb = &rbd->rbd_buf[i];
1535 if (rb->rb_mbuf != NULL) {
1536 bus_dmamap_sync(sc->sc_rx_mini_tag, rx_ring->rr_dmap,
1537 BUS_DMASYNC_POSTREAD);
1538 bus_dmamap_unload(sc->sc_rx_mini_tag, rb->rb_dmap);
1539 m_freem(rb->rb_mbuf);
1545 rx_ring = &sc->sc_rx_ring[1];
1546 rbd = &sc->sc_rx_data[1];
1547 for (i = 0; i < ET_RX_NDESC; ++i) {
1548 rb = &rbd->rbd_buf[i];
1549 if (rb->rb_mbuf != NULL) {
1550 bus_dmamap_sync(sc->sc_rx_tag, rx_ring->rr_dmap,
1551 BUS_DMASYNC_POSTREAD);
1552 bus_dmamap_unload(sc->sc_rx_tag, rb->rb_dmap);
1553 m_freem(rb->rb_mbuf);
1560 et_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt)
1562 uint32_t h, *hp, *hash = arg;
1564 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN);
1565 h = (h & 0x3f800000) >> 23;
1568 if (h >= 32 && h < 64) {
1571 } else if (h >= 64 && h < 96) {
1574 } else if (h >= 96) {
1584 et_setmulti(struct et_softc *sc)
1587 uint32_t hash[4] = { 0, 0, 0, 0 };
1588 uint32_t rxmac_ctrl, pktfilt;
1594 pktfilt = CSR_READ_4(sc, ET_PKTFILT);
1595 rxmac_ctrl = CSR_READ_4(sc, ET_RXMAC_CTRL);
1597 pktfilt &= ~(ET_PKTFILT_BCAST | ET_PKTFILT_MCAST | ET_PKTFILT_UCAST);
1598 if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) {
1599 rxmac_ctrl |= ET_RXMAC_CTRL_NO_PKTFILT;
1603 count = if_foreach_llmaddr(ifp, et_hash_maddr, &hash);
1605 for (i = 0; i < 4; ++i)
1606 CSR_WRITE_4(sc, ET_MULTI_HASH + (i * 4), hash[i]);
1609 pktfilt |= ET_PKTFILT_MCAST;
1610 rxmac_ctrl &= ~ET_RXMAC_CTRL_NO_PKTFILT;
1612 CSR_WRITE_4(sc, ET_PKTFILT, pktfilt);
1613 CSR_WRITE_4(sc, ET_RXMAC_CTRL, rxmac_ctrl);
1617 et_chip_init(struct et_softc *sc)
1621 int error, frame_len, rxmem_size;
1625 * Split 16Kbytes internal memory between TX and RX
1626 * according to frame length.
1628 frame_len = ET_FRAMELEN(ifp->if_mtu);
1629 if (frame_len < 2048) {
1630 rxmem_size = ET_MEM_RXSIZE_DEFAULT;
1631 } else if (frame_len <= ET_RXMAC_CUT_THRU_FRMLEN) {
1632 rxmem_size = ET_MEM_SIZE / 2;
1634 rxmem_size = ET_MEM_SIZE -
1635 roundup(frame_len + ET_MEM_TXSIZE_EX, ET_MEM_UNIT);
1637 rxq_end = ET_QUEUE_ADDR(rxmem_size);
1639 CSR_WRITE_4(sc, ET_RXQUEUE_START, ET_QUEUE_ADDR_START);
1640 CSR_WRITE_4(sc, ET_RXQUEUE_END, rxq_end);
1641 CSR_WRITE_4(sc, ET_TXQUEUE_START, rxq_end + 1);
1642 CSR_WRITE_4(sc, ET_TXQUEUE_END, ET_QUEUE_ADDR_END);
1645 CSR_WRITE_4(sc, ET_LOOPBACK, 0);
1647 /* Clear MSI configure */
1648 if ((sc->sc_flags & ET_FLAG_MSI) == 0)
1649 CSR_WRITE_4(sc, ET_MSI_CFG, 0);
1652 CSR_WRITE_4(sc, ET_TIMER, 0);
1654 /* Initialize MAC */
1657 /* Enable memory controllers */
1658 CSR_WRITE_4(sc, ET_MMC_CTRL, ET_MMC_CTRL_ENABLE);
1660 /* Initialize RX MAC */
1663 /* Initialize TX MAC */
1666 /* Initialize RX DMA engine */
1667 error = et_init_rxdma(sc);
1671 /* Initialize TX DMA engine */
1672 error = et_init_txdma(sc);
1680 et_init_tx_ring(struct et_softc *sc)
1682 struct et_txdesc_ring *tx_ring;
1683 struct et_txbuf_data *tbd;
1684 struct et_txstatus_data *txsd;
1686 tx_ring = &sc->sc_tx_ring;
1687 bzero(tx_ring->tr_desc, ET_TX_RING_SIZE);
1688 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
1689 BUS_DMASYNC_PREWRITE);
1691 tbd = &sc->sc_tx_data;
1692 tbd->tbd_start_index = 0;
1693 tbd->tbd_start_wrap = 0;
1696 txsd = &sc->sc_tx_status;
1697 bzero(txsd->txsd_status, sizeof(uint32_t));
1698 bus_dmamap_sync(txsd->txsd_dtag, txsd->txsd_dmap,
1699 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1703 et_init_rx_ring(struct et_softc *sc)
1705 struct et_rxstatus_data *rxsd;
1706 struct et_rxstat_ring *rxst_ring;
1707 struct et_rxbuf_data *rbd;
1710 for (n = 0; n < ET_RX_NRING; ++n) {
1711 rbd = &sc->sc_rx_data[n];
1712 for (i = 0; i < ET_RX_NDESC; ++i) {
1713 error = rbd->rbd_newbuf(rbd, i);
1715 if_printf(sc->ifp, "%d ring %d buf, "
1716 "newbuf failed: %d\n", n, i, error);
1722 rxsd = &sc->sc_rx_status;
1723 bzero(rxsd->rxsd_status, sizeof(struct et_rxstatus));
1724 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
1725 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1727 rxst_ring = &sc->sc_rxstat_ring;
1728 bzero(rxst_ring->rsr_stat, ET_RXSTAT_RING_SIZE);
1729 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
1730 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
1736 et_init_rxdma(struct et_softc *sc)
1738 struct et_rxstatus_data *rxsd;
1739 struct et_rxstat_ring *rxst_ring;
1740 struct et_rxdesc_ring *rx_ring;
1743 error = et_stop_rxdma(sc);
1745 if_printf(sc->ifp, "can't init RX DMA engine\n");
1752 rxsd = &sc->sc_rx_status;
1753 CSR_WRITE_4(sc, ET_RX_STATUS_HI, ET_ADDR_HI(rxsd->rxsd_paddr));
1754 CSR_WRITE_4(sc, ET_RX_STATUS_LO, ET_ADDR_LO(rxsd->rxsd_paddr));
1757 * Install RX stat ring
1759 rxst_ring = &sc->sc_rxstat_ring;
1760 CSR_WRITE_4(sc, ET_RXSTAT_HI, ET_ADDR_HI(rxst_ring->rsr_paddr));
1761 CSR_WRITE_4(sc, ET_RXSTAT_LO, ET_ADDR_LO(rxst_ring->rsr_paddr));
1762 CSR_WRITE_4(sc, ET_RXSTAT_CNT, ET_RX_NSTAT - 1);
1763 CSR_WRITE_4(sc, ET_RXSTAT_POS, 0);
1764 CSR_WRITE_4(sc, ET_RXSTAT_MINCNT, ((ET_RX_NSTAT * 15) / 100) - 1);
1766 /* Match ET_RXSTAT_POS */
1767 rxst_ring->rsr_index = 0;
1768 rxst_ring->rsr_wrap = 0;
1771 * Install the 2nd RX descriptor ring
1773 rx_ring = &sc->sc_rx_ring[1];
1774 CSR_WRITE_4(sc, ET_RX_RING1_HI, ET_ADDR_HI(rx_ring->rr_paddr));
1775 CSR_WRITE_4(sc, ET_RX_RING1_LO, ET_ADDR_LO(rx_ring->rr_paddr));
1776 CSR_WRITE_4(sc, ET_RX_RING1_CNT, ET_RX_NDESC - 1);
1777 CSR_WRITE_4(sc, ET_RX_RING1_POS, ET_RX_RING1_POS_WRAP);
1778 CSR_WRITE_4(sc, ET_RX_RING1_MINCNT, ((ET_RX_NDESC * 15) / 100) - 1);
1780 /* Match ET_RX_RING1_POS */
1781 rx_ring->rr_index = 0;
1782 rx_ring->rr_wrap = 1;
1785 * Install the 1st RX descriptor ring
1787 rx_ring = &sc->sc_rx_ring[0];
1788 CSR_WRITE_4(sc, ET_RX_RING0_HI, ET_ADDR_HI(rx_ring->rr_paddr));
1789 CSR_WRITE_4(sc, ET_RX_RING0_LO, ET_ADDR_LO(rx_ring->rr_paddr));
1790 CSR_WRITE_4(sc, ET_RX_RING0_CNT, ET_RX_NDESC - 1);
1791 CSR_WRITE_4(sc, ET_RX_RING0_POS, ET_RX_RING0_POS_WRAP);
1792 CSR_WRITE_4(sc, ET_RX_RING0_MINCNT, ((ET_RX_NDESC * 15) / 100) - 1);
1794 /* Match ET_RX_RING0_POS */
1795 rx_ring->rr_index = 0;
1796 rx_ring->rr_wrap = 1;
1799 * RX intr moderation
1801 CSR_WRITE_4(sc, ET_RX_INTR_NPKTS, sc->sc_rx_intr_npkts);
1802 CSR_WRITE_4(sc, ET_RX_INTR_DELAY, sc->sc_rx_intr_delay);
1808 et_init_txdma(struct et_softc *sc)
1810 struct et_txdesc_ring *tx_ring;
1811 struct et_txstatus_data *txsd;
1814 error = et_stop_txdma(sc);
1816 if_printf(sc->ifp, "can't init TX DMA engine\n");
1821 * Install TX descriptor ring
1823 tx_ring = &sc->sc_tx_ring;
1824 CSR_WRITE_4(sc, ET_TX_RING_HI, ET_ADDR_HI(tx_ring->tr_paddr));
1825 CSR_WRITE_4(sc, ET_TX_RING_LO, ET_ADDR_LO(tx_ring->tr_paddr));
1826 CSR_WRITE_4(sc, ET_TX_RING_CNT, ET_TX_NDESC - 1);
1831 txsd = &sc->sc_tx_status;
1832 CSR_WRITE_4(sc, ET_TX_STATUS_HI, ET_ADDR_HI(txsd->txsd_paddr));
1833 CSR_WRITE_4(sc, ET_TX_STATUS_LO, ET_ADDR_LO(txsd->txsd_paddr));
1835 CSR_WRITE_4(sc, ET_TX_READY_POS, 0);
1837 /* Match ET_TX_READY_POS */
1838 tx_ring->tr_ready_index = 0;
1839 tx_ring->tr_ready_wrap = 0;
1845 et_init_mac(struct et_softc *sc)
1848 const uint8_t *eaddr;
1852 CSR_WRITE_4(sc, ET_MAC_CFG1,
1853 ET_MAC_CFG1_RST_TXFUNC | ET_MAC_CFG1_RST_RXFUNC |
1854 ET_MAC_CFG1_RST_TXMC | ET_MAC_CFG1_RST_RXMC |
1855 ET_MAC_CFG1_SIM_RST | ET_MAC_CFG1_SOFT_RST);
1858 * Setup inter packet gap
1860 val = (56 << ET_IPG_NONB2B_1_SHIFT) |
1861 (88 << ET_IPG_NONB2B_2_SHIFT) |
1862 (80 << ET_IPG_MINIFG_SHIFT) |
1863 (96 << ET_IPG_B2B_SHIFT);
1864 CSR_WRITE_4(sc, ET_IPG, val);
1867 * Setup half duplex mode
1869 val = (10 << ET_MAC_HDX_ALT_BEB_TRUNC_SHIFT) |
1870 (15 << ET_MAC_HDX_REXMIT_MAX_SHIFT) |
1871 (55 << ET_MAC_HDX_COLLWIN_SHIFT) |
1872 ET_MAC_HDX_EXC_DEFER;
1873 CSR_WRITE_4(sc, ET_MAC_HDX, val);
1875 /* Clear MAC control */
1876 CSR_WRITE_4(sc, ET_MAC_CTRL, 0);
1879 CSR_WRITE_4(sc, ET_MII_CFG, ET_MII_CFG_CLKRST);
1885 eaddr = IF_LLADDR(ifp);
1886 val = eaddr[2] | (eaddr[3] << 8) | (eaddr[4] << 16) | (eaddr[5] << 24);
1887 CSR_WRITE_4(sc, ET_MAC_ADDR1, val);
1888 val = (eaddr[0] << 16) | (eaddr[1] << 24);
1889 CSR_WRITE_4(sc, ET_MAC_ADDR2, val);
1891 /* Set max frame length */
1892 CSR_WRITE_4(sc, ET_MAX_FRMLEN, ET_FRAMELEN(ifp->if_mtu));
1894 /* Bring MAC out of reset state */
1895 CSR_WRITE_4(sc, ET_MAC_CFG1, 0);
1899 et_init_rxmac(struct et_softc *sc)
1902 const uint8_t *eaddr;
1906 /* Disable RX MAC and WOL */
1907 CSR_WRITE_4(sc, ET_RXMAC_CTRL, ET_RXMAC_CTRL_WOL_DISABLE);
1910 * Clear all WOL related registers
1912 for (i = 0; i < 3; ++i)
1913 CSR_WRITE_4(sc, ET_WOL_CRC + (i * 4), 0);
1914 for (i = 0; i < 20; ++i)
1915 CSR_WRITE_4(sc, ET_WOL_MASK + (i * 4), 0);
1918 * Set WOL source address. XXX is this necessary?
1921 eaddr = IF_LLADDR(ifp);
1922 val = (eaddr[2] << 24) | (eaddr[3] << 16) | (eaddr[4] << 8) | eaddr[5];
1923 CSR_WRITE_4(sc, ET_WOL_SA_LO, val);
1924 val = (eaddr[0] << 8) | eaddr[1];
1925 CSR_WRITE_4(sc, ET_WOL_SA_HI, val);
1927 /* Clear packet filters */
1928 CSR_WRITE_4(sc, ET_PKTFILT, 0);
1930 /* No ucast filtering */
1931 CSR_WRITE_4(sc, ET_UCAST_FILTADDR1, 0);
1932 CSR_WRITE_4(sc, ET_UCAST_FILTADDR2, 0);
1933 CSR_WRITE_4(sc, ET_UCAST_FILTADDR3, 0);
1935 if (ET_FRAMELEN(ifp->if_mtu) > ET_RXMAC_CUT_THRU_FRMLEN) {
1937 * In order to transmit jumbo packets greater than
1938 * ET_RXMAC_CUT_THRU_FRMLEN bytes, the FIFO between
1939 * RX MAC and RX DMA needs to be reduced in size to
1940 * (ET_MEM_SIZE - ET_MEM_TXSIZE_EX - framelen). In
1941 * order to implement this, we must use "cut through"
1942 * mode in the RX MAC, which chops packets down into
1943 * segments. In this case we selected 256 bytes,
1944 * since this is the size of the PCI-Express TLP's
1945 * that the ET1310 uses.
1947 val = (ET_RXMAC_SEGSZ(256) & ET_RXMAC_MC_SEGSZ_MAX_MASK) |
1948 ET_RXMAC_MC_SEGSZ_ENABLE;
1952 CSR_WRITE_4(sc, ET_RXMAC_MC_SEGSZ, val);
1954 CSR_WRITE_4(sc, ET_RXMAC_MC_WATERMARK, 0);
1956 /* Initialize RX MAC management register */
1957 CSR_WRITE_4(sc, ET_RXMAC_MGT, 0);
1959 CSR_WRITE_4(sc, ET_RXMAC_SPACE_AVL, 0);
1961 CSR_WRITE_4(sc, ET_RXMAC_MGT,
1962 ET_RXMAC_MGT_PASS_ECRC |
1963 ET_RXMAC_MGT_PASS_ELEN |
1964 ET_RXMAC_MGT_PASS_ETRUNC |
1965 ET_RXMAC_MGT_CHECK_PKT);
1968 * Configure runt filtering (may not work on certain chip generation)
1970 val = (ETHER_MIN_LEN << ET_PKTFILT_MINLEN_SHIFT) &
1971 ET_PKTFILT_MINLEN_MASK;
1972 val |= ET_PKTFILT_FRAG;
1973 CSR_WRITE_4(sc, ET_PKTFILT, val);
1975 /* Enable RX MAC but leave WOL disabled */
1976 CSR_WRITE_4(sc, ET_RXMAC_CTRL,
1977 ET_RXMAC_CTRL_WOL_DISABLE | ET_RXMAC_CTRL_ENABLE);
1980 * Setup multicast hash and allmulti/promisc mode
1986 et_init_txmac(struct et_softc *sc)
1989 /* Disable TX MAC and FC(?) */
1990 CSR_WRITE_4(sc, ET_TXMAC_CTRL, ET_TXMAC_CTRL_FC_DISABLE);
1993 * Initialize pause time.
1994 * This register should be set before XON/XOFF frame is
1997 CSR_WRITE_4(sc, ET_TXMAC_FLOWCTRL, 0 << ET_TXMAC_FLOWCTRL_CFPT_SHIFT);
1999 /* Enable TX MAC but leave FC(?) diabled */
2000 CSR_WRITE_4(sc, ET_TXMAC_CTRL,
2001 ET_TXMAC_CTRL_ENABLE | ET_TXMAC_CTRL_FC_DISABLE);
2005 et_start_rxdma(struct et_softc *sc)
2009 val = (sc->sc_rx_data[0].rbd_bufsize & ET_RXDMA_CTRL_RING0_SIZE_MASK) |
2010 ET_RXDMA_CTRL_RING0_ENABLE;
2011 val |= (sc->sc_rx_data[1].rbd_bufsize & ET_RXDMA_CTRL_RING1_SIZE_MASK) |
2012 ET_RXDMA_CTRL_RING1_ENABLE;
2014 CSR_WRITE_4(sc, ET_RXDMA_CTRL, val);
2018 if (CSR_READ_4(sc, ET_RXDMA_CTRL) & ET_RXDMA_CTRL_HALTED) {
2019 if_printf(sc->ifp, "can't start RX DMA engine\n");
2026 et_start_txdma(struct et_softc *sc)
2029 CSR_WRITE_4(sc, ET_TXDMA_CTRL, ET_TXDMA_CTRL_SINGLE_EPKT);
2034 et_rxeof(struct et_softc *sc)
2036 struct et_rxstatus_data *rxsd;
2037 struct et_rxstat_ring *rxst_ring;
2038 struct et_rxbuf_data *rbd;
2039 struct et_rxdesc_ring *rx_ring;
2040 struct et_rxstat *st;
2043 uint32_t rxstat_pos, rxring_pos;
2044 uint32_t rxst_info1, rxst_info2, rxs_stat_ring;
2045 int buflen, buf_idx, npost[2], ring_idx;
2046 int rxst_index, rxst_wrap;
2051 rxsd = &sc->sc_rx_status;
2052 rxst_ring = &sc->sc_rxstat_ring;
2054 if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
2057 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
2058 BUS_DMASYNC_POSTREAD);
2059 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
2060 BUS_DMASYNC_POSTREAD);
2062 npost[0] = npost[1] = 0;
2063 rxs_stat_ring = le32toh(rxsd->rxsd_status->rxs_stat_ring);
2064 rxst_wrap = (rxs_stat_ring & ET_RXS_STATRING_WRAP) ? 1 : 0;
2065 rxst_index = (rxs_stat_ring & ET_RXS_STATRING_INDEX_MASK) >>
2066 ET_RXS_STATRING_INDEX_SHIFT;
2068 while (rxst_index != rxst_ring->rsr_index ||
2069 rxst_wrap != rxst_ring->rsr_wrap) {
2070 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2073 MPASS(rxst_ring->rsr_index < ET_RX_NSTAT);
2074 st = &rxst_ring->rsr_stat[rxst_ring->rsr_index];
2075 rxst_info1 = le32toh(st->rxst_info1);
2076 rxst_info2 = le32toh(st->rxst_info2);
2077 buflen = (rxst_info2 & ET_RXST_INFO2_LEN_MASK) >>
2078 ET_RXST_INFO2_LEN_SHIFT;
2079 buf_idx = (rxst_info2 & ET_RXST_INFO2_BUFIDX_MASK) >>
2080 ET_RXST_INFO2_BUFIDX_SHIFT;
2081 ring_idx = (rxst_info2 & ET_RXST_INFO2_RINGIDX_MASK) >>
2082 ET_RXST_INFO2_RINGIDX_SHIFT;
2084 if (++rxst_ring->rsr_index == ET_RX_NSTAT) {
2085 rxst_ring->rsr_index = 0;
2086 rxst_ring->rsr_wrap ^= 1;
2088 rxstat_pos = rxst_ring->rsr_index & ET_RXSTAT_POS_INDEX_MASK;
2089 if (rxst_ring->rsr_wrap)
2090 rxstat_pos |= ET_RXSTAT_POS_WRAP;
2091 CSR_WRITE_4(sc, ET_RXSTAT_POS, rxstat_pos);
2093 if (ring_idx >= ET_RX_NRING) {
2094 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2095 if_printf(ifp, "invalid ring index %d\n", ring_idx);
2098 if (buf_idx >= ET_RX_NDESC) {
2099 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2100 if_printf(ifp, "invalid buf index %d\n", buf_idx);
2104 rbd = &sc->sc_rx_data[ring_idx];
2105 m = rbd->rbd_buf[buf_idx].rb_mbuf;
2106 if ((rxst_info1 & ET_RXST_INFO1_OK) == 0){
2107 /* Discard errored frame. */
2108 rbd->rbd_discard(rbd, buf_idx);
2109 } else if (rbd->rbd_newbuf(rbd, buf_idx) != 0) {
2110 /* No available mbufs, discard it. */
2111 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
2112 rbd->rbd_discard(rbd, buf_idx);
2114 buflen -= ETHER_CRC_LEN;
2115 if (buflen < ETHER_HDR_LEN) {
2117 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
2119 m->m_pkthdr.len = m->m_len = buflen;
2120 m->m_pkthdr.rcvif = ifp;
2122 ifp->if_input(ifp, m);
2127 rx_ring = &sc->sc_rx_ring[ring_idx];
2128 if (buf_idx != rx_ring->rr_index) {
2130 "WARNING!! ring %d, buf_idx %d, rr_idx %d\n",
2131 ring_idx, buf_idx, rx_ring->rr_index);
2134 MPASS(rx_ring->rr_index < ET_RX_NDESC);
2135 if (++rx_ring->rr_index == ET_RX_NDESC) {
2136 rx_ring->rr_index = 0;
2137 rx_ring->rr_wrap ^= 1;
2139 rxring_pos = rx_ring->rr_index & ET_RX_RING_POS_INDEX_MASK;
2140 if (rx_ring->rr_wrap)
2141 rxring_pos |= ET_RX_RING_POS_WRAP;
2142 CSR_WRITE_4(sc, rx_ring->rr_posreg, rxring_pos);
2145 bus_dmamap_sync(rxsd->rxsd_dtag, rxsd->rxsd_dmap,
2146 BUS_DMASYNC_PREREAD);
2147 bus_dmamap_sync(rxst_ring->rsr_dtag, rxst_ring->rsr_dmap,
2148 BUS_DMASYNC_PREREAD);
2152 et_encap(struct et_softc *sc, struct mbuf **m0)
2154 struct et_txdesc_ring *tx_ring;
2155 struct et_txbuf_data *tbd;
2156 struct et_txdesc *td;
2158 bus_dma_segment_t segs[ET_NSEG_MAX];
2160 uint32_t csum_flags, last_td_ctrl2;
2161 int error, i, idx, first_idx, last_idx, nsegs;
2163 tx_ring = &sc->sc_tx_ring;
2164 MPASS(tx_ring->tr_ready_index < ET_TX_NDESC);
2165 tbd = &sc->sc_tx_data;
2166 first_idx = tx_ring->tr_ready_index;
2167 map = tbd->tbd_buf[first_idx].tb_dmap;
2169 error = bus_dmamap_load_mbuf_sg(sc->sc_tx_tag, map, *m0, segs, &nsegs,
2171 if (error == EFBIG) {
2172 m = m_collapse(*m0, M_NOWAIT, ET_NSEG_MAX);
2179 error = bus_dmamap_load_mbuf_sg(sc->sc_tx_tag, map, *m0, segs,
2186 } else if (error != 0)
2189 /* Check for descriptor overruns. */
2190 if (tbd->tbd_used + nsegs > ET_TX_NDESC - 1) {
2191 bus_dmamap_unload(sc->sc_tx_tag, map);
2194 bus_dmamap_sync(sc->sc_tx_tag, map, BUS_DMASYNC_PREWRITE);
2196 last_td_ctrl2 = ET_TDCTRL2_LAST_FRAG;
2198 if (sc->sc_tx / sc->sc_tx_intr_nsegs != sc->sc_tx_intr) {
2199 sc->sc_tx_intr = sc->sc_tx / sc->sc_tx_intr_nsegs;
2200 last_td_ctrl2 |= ET_TDCTRL2_INTR;
2205 if ((m->m_pkthdr.csum_flags & ET_CSUM_FEATURES) != 0) {
2206 if ((m->m_pkthdr.csum_flags & CSUM_IP) != 0)
2207 csum_flags |= ET_TDCTRL2_CSUM_IP;
2208 if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0)
2209 csum_flags |= ET_TDCTRL2_CSUM_UDP;
2210 else if ((m->m_pkthdr.csum_flags & CSUM_TCP) != 0)
2211 csum_flags |= ET_TDCTRL2_CSUM_TCP;
2214 for (i = 0; i < nsegs; ++i) {
2215 idx = (first_idx + i) % ET_TX_NDESC;
2216 td = &tx_ring->tr_desc[idx];
2217 td->td_addr_hi = htole32(ET_ADDR_HI(segs[i].ds_addr));
2218 td->td_addr_lo = htole32(ET_ADDR_LO(segs[i].ds_addr));
2219 td->td_ctrl1 = htole32(segs[i].ds_len & ET_TDCTRL1_LEN_MASK);
2220 if (i == nsegs - 1) {
2222 td->td_ctrl2 = htole32(last_td_ctrl2 | csum_flags);
2225 td->td_ctrl2 = htole32(csum_flags);
2227 MPASS(tx_ring->tr_ready_index < ET_TX_NDESC);
2228 if (++tx_ring->tr_ready_index == ET_TX_NDESC) {
2229 tx_ring->tr_ready_index = 0;
2230 tx_ring->tr_ready_wrap ^= 1;
2233 td = &tx_ring->tr_desc[first_idx];
2235 td->td_ctrl2 |= htole32(ET_TDCTRL2_FIRST_FRAG);
2237 MPASS(last_idx >= 0);
2238 tbd->tbd_buf[first_idx].tb_dmap = tbd->tbd_buf[last_idx].tb_dmap;
2239 tbd->tbd_buf[last_idx].tb_dmap = map;
2240 tbd->tbd_buf[last_idx].tb_mbuf = m;
2242 tbd->tbd_used += nsegs;
2243 MPASS(tbd->tbd_used <= ET_TX_NDESC);
2249 et_txeof(struct et_softc *sc)
2251 struct et_txdesc_ring *tx_ring;
2252 struct et_txbuf_data *tbd;
2253 struct et_txbuf *tb;
2261 tx_ring = &sc->sc_tx_ring;
2262 tbd = &sc->sc_tx_data;
2264 if ((sc->sc_flags & ET_FLAG_TXRX_ENABLED) == 0)
2267 if (tbd->tbd_used == 0)
2270 bus_dmamap_sync(tx_ring->tr_dtag, tx_ring->tr_dmap,
2271 BUS_DMASYNC_POSTWRITE);
2273 tx_done = CSR_READ_4(sc, ET_TX_DONE_POS);
2274 end = tx_done & ET_TX_DONE_POS_INDEX_MASK;
2275 wrap = (tx_done & ET_TX_DONE_POS_WRAP) ? 1 : 0;
2277 while (tbd->tbd_start_index != end || tbd->tbd_start_wrap != wrap) {
2278 MPASS(tbd->tbd_start_index < ET_TX_NDESC);
2279 tb = &tbd->tbd_buf[tbd->tbd_start_index];
2280 if (tb->tb_mbuf != NULL) {
2281 bus_dmamap_sync(sc->sc_tx_tag, tb->tb_dmap,
2282 BUS_DMASYNC_POSTWRITE);
2283 bus_dmamap_unload(sc->sc_tx_tag, tb->tb_dmap);
2284 m_freem(tb->tb_mbuf);
2288 if (++tbd->tbd_start_index == ET_TX_NDESC) {
2289 tbd->tbd_start_index = 0;
2290 tbd->tbd_start_wrap ^= 1;
2293 MPASS(tbd->tbd_used > 0);
2297 if (tbd->tbd_used == 0)
2298 sc->watchdog_timer = 0;
2299 if (tbd->tbd_used + ET_NSEG_SPARE < ET_TX_NDESC)
2300 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
2306 struct et_softc *sc;
2307 struct mii_data *mii;
2311 mii = device_get_softc(sc->sc_miibus);
2314 et_stats_update(sc);
2315 if (et_watchdog(sc) == EJUSTRETURN)
2317 callout_reset(&sc->sc_tick, hz, et_tick, sc);
2321 et_newbuf_cluster(struct et_rxbuf_data *rbd, int buf_idx)
2323 struct et_softc *sc;
2324 struct et_rxdesc *desc;
2325 struct et_rxbuf *rb;
2327 bus_dma_segment_t segs[1];
2331 MPASS(buf_idx < ET_RX_NDESC);
2332 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
2335 m->m_len = m->m_pkthdr.len = MCLBYTES;
2336 m_adj(m, ETHER_ALIGN);
2338 sc = rbd->rbd_softc;
2339 rb = &rbd->rbd_buf[buf_idx];
2341 if (bus_dmamap_load_mbuf_sg(sc->sc_rx_tag, sc->sc_rx_sparemap, m,
2342 segs, &nsegs, 0) != 0) {
2346 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
2348 if (rb->rb_mbuf != NULL) {
2349 bus_dmamap_sync(sc->sc_rx_tag, rb->rb_dmap,
2350 BUS_DMASYNC_POSTREAD);
2351 bus_dmamap_unload(sc->sc_rx_tag, rb->rb_dmap);
2354 rb->rb_dmap = sc->sc_rx_sparemap;
2355 sc->sc_rx_sparemap = dmap;
2356 bus_dmamap_sync(sc->sc_rx_tag, rb->rb_dmap, BUS_DMASYNC_PREREAD);
2359 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2360 desc->rd_addr_hi = htole32(ET_ADDR_HI(segs[0].ds_addr));
2361 desc->rd_addr_lo = htole32(ET_ADDR_LO(segs[0].ds_addr));
2362 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2363 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2364 BUS_DMASYNC_PREWRITE);
2369 et_rxbuf_discard(struct et_rxbuf_data *rbd, int buf_idx)
2371 struct et_rxdesc *desc;
2373 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2374 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2375 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2376 BUS_DMASYNC_PREWRITE);
2380 et_newbuf_hdr(struct et_rxbuf_data *rbd, int buf_idx)
2382 struct et_softc *sc;
2383 struct et_rxdesc *desc;
2384 struct et_rxbuf *rb;
2386 bus_dma_segment_t segs[1];
2390 MPASS(buf_idx < ET_RX_NDESC);
2391 MGETHDR(m, M_NOWAIT, MT_DATA);
2394 m->m_len = m->m_pkthdr.len = MHLEN;
2395 m_adj(m, ETHER_ALIGN);
2397 sc = rbd->rbd_softc;
2398 rb = &rbd->rbd_buf[buf_idx];
2400 if (bus_dmamap_load_mbuf_sg(sc->sc_rx_mini_tag, sc->sc_rx_mini_sparemap,
2401 m, segs, &nsegs, 0) != 0) {
2405 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs));
2407 if (rb->rb_mbuf != NULL) {
2408 bus_dmamap_sync(sc->sc_rx_mini_tag, rb->rb_dmap,
2409 BUS_DMASYNC_POSTREAD);
2410 bus_dmamap_unload(sc->sc_rx_mini_tag, rb->rb_dmap);
2413 rb->rb_dmap = sc->sc_rx_mini_sparemap;
2414 sc->sc_rx_mini_sparemap = dmap;
2415 bus_dmamap_sync(sc->sc_rx_mini_tag, rb->rb_dmap, BUS_DMASYNC_PREREAD);
2418 desc = &rbd->rbd_ring->rr_desc[buf_idx];
2419 desc->rd_addr_hi = htole32(ET_ADDR_HI(segs[0].ds_addr));
2420 desc->rd_addr_lo = htole32(ET_ADDR_LO(segs[0].ds_addr));
2421 desc->rd_ctrl = htole32(buf_idx & ET_RDCTRL_BUFIDX_MASK);
2422 bus_dmamap_sync(rbd->rbd_ring->rr_dtag, rbd->rbd_ring->rr_dmap,
2423 BUS_DMASYNC_PREWRITE);
2427 #define ET_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2428 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2429 #define ET_SYSCTL_STAT_ADD64(c, h, n, p, d) \
2430 SYSCTL_ADD_UQUAD(c, h, OID_AUTO, n, CTLFLAG_RD, p, d)
2433 * Create sysctl tree
2436 et_add_sysctls(struct et_softc * sc)
2438 struct sysctl_ctx_list *ctx;
2439 struct sysctl_oid_list *children, *parent;
2440 struct sysctl_oid *tree;
2441 struct et_hw_stats *stats;
2443 ctx = device_get_sysctl_ctx(sc->dev);
2444 children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev));
2446 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_npkts",
2447 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0,
2448 et_sysctl_rx_intr_npkts, "I", "RX IM, # packets per RX interrupt");
2449 SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_intr_delay",
2450 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0,
2451 et_sysctl_rx_intr_delay, "I",
2452 "RX IM, RX interrupt delay (x10 usec)");
2453 SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_intr_nsegs",
2454 CTLFLAG_RW, &sc->sc_tx_intr_nsegs, 0,
2455 "TX IM, # segments per TX interrupt");
2456 SYSCTL_ADD_UINT(ctx, children, OID_AUTO, "timer",
2457 CTLFLAG_RW, &sc->sc_timer, 0, "TX timer");
2459 tree = SYSCTL_ADD_NODE(ctx, children, OID_AUTO, "stats",
2460 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "ET statistics");
2461 parent = SYSCTL_CHILDREN(tree);
2463 /* TX/RX statistics. */
2464 stats = &sc->sc_stats;
2465 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_64", &stats->pkts_64,
2466 "0 to 64 bytes frames");
2467 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_65_127", &stats->pkts_65,
2468 "65 to 127 bytes frames");
2469 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_128_255", &stats->pkts_128,
2470 "128 to 255 bytes frames");
2471 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_256_511", &stats->pkts_256,
2472 "256 to 511 bytes frames");
2473 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_512_1023", &stats->pkts_512,
2474 "512 to 1023 bytes frames");
2475 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_1024_1518", &stats->pkts_1024,
2476 "1024 to 1518 bytes frames");
2477 ET_SYSCTL_STAT_ADD64(ctx, parent, "frames_1519_1522", &stats->pkts_1519,
2478 "1519 to 1522 bytes frames");
2480 /* RX statistics. */
2481 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "rx",
2482 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "RX MAC statistics");
2483 children = SYSCTL_CHILDREN(tree);
2484 ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
2485 &stats->rx_bytes, "Good bytes");
2486 ET_SYSCTL_STAT_ADD64(ctx, children, "frames",
2487 &stats->rx_frames, "Good frames");
2488 ET_SYSCTL_STAT_ADD32(ctx, children, "crc_errs",
2489 &stats->rx_crcerrs, "CRC errors");
2490 ET_SYSCTL_STAT_ADD64(ctx, children, "mcast_frames",
2491 &stats->rx_mcast, "Multicast frames");
2492 ET_SYSCTL_STAT_ADD64(ctx, children, "bcast_frames",
2493 &stats->rx_bcast, "Broadcast frames");
2494 ET_SYSCTL_STAT_ADD32(ctx, children, "control",
2495 &stats->rx_control, "Control frames");
2496 ET_SYSCTL_STAT_ADD32(ctx, children, "pause",
2497 &stats->rx_pause, "Pause frames");
2498 ET_SYSCTL_STAT_ADD32(ctx, children, "unknown_control",
2499 &stats->rx_unknown_control, "Unknown control frames");
2500 ET_SYSCTL_STAT_ADD32(ctx, children, "align_errs",
2501 &stats->rx_alignerrs, "Alignment errors");
2502 ET_SYSCTL_STAT_ADD32(ctx, children, "len_errs",
2503 &stats->rx_lenerrs, "Frames with length mismatched");
2504 ET_SYSCTL_STAT_ADD32(ctx, children, "code_errs",
2505 &stats->rx_codeerrs, "Frames with code error");
2506 ET_SYSCTL_STAT_ADD32(ctx, children, "cs_errs",
2507 &stats->rx_cserrs, "Frames with carrier sense error");
2508 ET_SYSCTL_STAT_ADD32(ctx, children, "runts",
2509 &stats->rx_runts, "Too short frames");
2510 ET_SYSCTL_STAT_ADD64(ctx, children, "oversize",
2511 &stats->rx_oversize, "Oversized frames");
2512 ET_SYSCTL_STAT_ADD32(ctx, children, "fragments",
2513 &stats->rx_fragments, "Fragmented frames");
2514 ET_SYSCTL_STAT_ADD32(ctx, children, "jabbers",
2515 &stats->rx_jabbers, "Frames with jabber error");
2516 ET_SYSCTL_STAT_ADD32(ctx, children, "drop",
2517 &stats->rx_drop, "Dropped frames");
2519 /* TX statistics. */
2520 tree = SYSCTL_ADD_NODE(ctx, parent, OID_AUTO, "tx",
2521 CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "TX MAC statistics");
2522 children = SYSCTL_CHILDREN(tree);
2523 ET_SYSCTL_STAT_ADD64(ctx, children, "bytes",
2524 &stats->tx_bytes, "Good bytes");
2525 ET_SYSCTL_STAT_ADD64(ctx, children, "frames",
2526 &stats->tx_frames, "Good frames");
2527 ET_SYSCTL_STAT_ADD64(ctx, children, "mcast_frames",
2528 &stats->tx_mcast, "Multicast frames");
2529 ET_SYSCTL_STAT_ADD64(ctx, children, "bcast_frames",
2530 &stats->tx_bcast, "Broadcast frames");
2531 ET_SYSCTL_STAT_ADD32(ctx, children, "pause",
2532 &stats->tx_pause, "Pause frames");
2533 ET_SYSCTL_STAT_ADD32(ctx, children, "deferred",
2534 &stats->tx_deferred, "Deferred frames");
2535 ET_SYSCTL_STAT_ADD32(ctx, children, "excess_deferred",
2536 &stats->tx_excess_deferred, "Excessively deferred frames");
2537 ET_SYSCTL_STAT_ADD32(ctx, children, "single_colls",
2538 &stats->tx_single_colls, "Single collisions");
2539 ET_SYSCTL_STAT_ADD32(ctx, children, "multi_colls",
2540 &stats->tx_multi_colls, "Multiple collisions");
2541 ET_SYSCTL_STAT_ADD32(ctx, children, "late_colls",
2542 &stats->tx_late_colls, "Late collisions");
2543 ET_SYSCTL_STAT_ADD32(ctx, children, "excess_colls",
2544 &stats->tx_excess_colls, "Excess collisions");
2545 ET_SYSCTL_STAT_ADD32(ctx, children, "total_colls",
2546 &stats->tx_total_colls, "Total collisions");
2547 ET_SYSCTL_STAT_ADD32(ctx, children, "pause_honored",
2548 &stats->tx_pause_honored, "Honored pause frames");
2549 ET_SYSCTL_STAT_ADD32(ctx, children, "drop",
2550 &stats->tx_drop, "Dropped frames");
2551 ET_SYSCTL_STAT_ADD32(ctx, children, "jabbers",
2552 &stats->tx_jabbers, "Frames with jabber errors");
2553 ET_SYSCTL_STAT_ADD32(ctx, children, "crc_errs",
2554 &stats->tx_crcerrs, "Frames with CRC errors");
2555 ET_SYSCTL_STAT_ADD32(ctx, children, "control",
2556 &stats->tx_control, "Control frames");
2557 ET_SYSCTL_STAT_ADD64(ctx, children, "oversize",
2558 &stats->tx_oversize, "Oversized frames");
2559 ET_SYSCTL_STAT_ADD32(ctx, children, "undersize",
2560 &stats->tx_undersize, "Undersized frames");
2561 ET_SYSCTL_STAT_ADD32(ctx, children, "fragments",
2562 &stats->tx_fragments, "Fragmented frames");
2565 #undef ET_SYSCTL_STAT_ADD32
2566 #undef ET_SYSCTL_STAT_ADD64
2569 et_sysctl_rx_intr_npkts(SYSCTL_HANDLER_ARGS)
2571 struct et_softc *sc;
2577 v = sc->sc_rx_intr_npkts;
2578 error = sysctl_handle_int(oidp, &v, 0, req);
2579 if (error || req->newptr == NULL)
2586 if (sc->sc_rx_intr_npkts != v) {
2587 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2588 CSR_WRITE_4(sc, ET_RX_INTR_NPKTS, v);
2589 sc->sc_rx_intr_npkts = v;
2596 et_sysctl_rx_intr_delay(SYSCTL_HANDLER_ARGS)
2598 struct et_softc *sc;
2604 v = sc->sc_rx_intr_delay;
2605 error = sysctl_handle_int(oidp, &v, 0, req);
2606 if (error || req->newptr == NULL)
2613 if (sc->sc_rx_intr_delay != v) {
2614 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
2615 CSR_WRITE_4(sc, ET_RX_INTR_DELAY, v);
2616 sc->sc_rx_intr_delay = v;
2623 et_stats_update(struct et_softc *sc)
2625 struct et_hw_stats *stats;
2627 stats = &sc->sc_stats;
2628 stats->pkts_64 += CSR_READ_4(sc, ET_STAT_PKTS_64);
2629 stats->pkts_65 += CSR_READ_4(sc, ET_STAT_PKTS_65_127);
2630 stats->pkts_128 += CSR_READ_4(sc, ET_STAT_PKTS_128_255);
2631 stats->pkts_256 += CSR_READ_4(sc, ET_STAT_PKTS_256_511);
2632 stats->pkts_512 += CSR_READ_4(sc, ET_STAT_PKTS_512_1023);
2633 stats->pkts_1024 += CSR_READ_4(sc, ET_STAT_PKTS_1024_1518);
2634 stats->pkts_1519 += CSR_READ_4(sc, ET_STAT_PKTS_1519_1522);
2636 stats->rx_bytes += CSR_READ_4(sc, ET_STAT_RX_BYTES);
2637 stats->rx_frames += CSR_READ_4(sc, ET_STAT_RX_FRAMES);
2638 stats->rx_crcerrs += CSR_READ_4(sc, ET_STAT_RX_CRC_ERR);
2639 stats->rx_mcast += CSR_READ_4(sc, ET_STAT_RX_MCAST);
2640 stats->rx_bcast += CSR_READ_4(sc, ET_STAT_RX_BCAST);
2641 stats->rx_control += CSR_READ_4(sc, ET_STAT_RX_CTL);
2642 stats->rx_pause += CSR_READ_4(sc, ET_STAT_RX_PAUSE);
2643 stats->rx_unknown_control += CSR_READ_4(sc, ET_STAT_RX_UNKNOWN_CTL);
2644 stats->rx_alignerrs += CSR_READ_4(sc, ET_STAT_RX_ALIGN_ERR);
2645 stats->rx_lenerrs += CSR_READ_4(sc, ET_STAT_RX_LEN_ERR);
2646 stats->rx_codeerrs += CSR_READ_4(sc, ET_STAT_RX_CODE_ERR);
2647 stats->rx_cserrs += CSR_READ_4(sc, ET_STAT_RX_CS_ERR);
2648 stats->rx_runts += CSR_READ_4(sc, ET_STAT_RX_RUNT);
2649 stats->rx_oversize += CSR_READ_4(sc, ET_STAT_RX_OVERSIZE);
2650 stats->rx_fragments += CSR_READ_4(sc, ET_STAT_RX_FRAG);
2651 stats->rx_jabbers += CSR_READ_4(sc, ET_STAT_RX_JABBER);
2652 stats->rx_drop += CSR_READ_4(sc, ET_STAT_RX_DROP);
2654 stats->tx_bytes += CSR_READ_4(sc, ET_STAT_TX_BYTES);
2655 stats->tx_frames += CSR_READ_4(sc, ET_STAT_TX_FRAMES);
2656 stats->tx_mcast += CSR_READ_4(sc, ET_STAT_TX_MCAST);
2657 stats->tx_bcast += CSR_READ_4(sc, ET_STAT_TX_BCAST);
2658 stats->tx_pause += CSR_READ_4(sc, ET_STAT_TX_PAUSE);
2659 stats->tx_deferred += CSR_READ_4(sc, ET_STAT_TX_DEFER);
2660 stats->tx_excess_deferred += CSR_READ_4(sc, ET_STAT_TX_EXCESS_DEFER);
2661 stats->tx_single_colls += CSR_READ_4(sc, ET_STAT_TX_SINGLE_COL);
2662 stats->tx_multi_colls += CSR_READ_4(sc, ET_STAT_TX_MULTI_COL);
2663 stats->tx_late_colls += CSR_READ_4(sc, ET_STAT_TX_LATE_COL);
2664 stats->tx_excess_colls += CSR_READ_4(sc, ET_STAT_TX_EXCESS_COL);
2665 stats->tx_total_colls += CSR_READ_4(sc, ET_STAT_TX_TOTAL_COL);
2666 stats->tx_pause_honored += CSR_READ_4(sc, ET_STAT_TX_PAUSE_HONOR);
2667 stats->tx_drop += CSR_READ_4(sc, ET_STAT_TX_DROP);
2668 stats->tx_jabbers += CSR_READ_4(sc, ET_STAT_TX_JABBER);
2669 stats->tx_crcerrs += CSR_READ_4(sc, ET_STAT_TX_CRC_ERR);
2670 stats->tx_control += CSR_READ_4(sc, ET_STAT_TX_CTL);
2671 stats->tx_oversize += CSR_READ_4(sc, ET_STAT_TX_OVERSIZE);
2672 stats->tx_undersize += CSR_READ_4(sc, ET_STAT_TX_UNDERSIZE);
2673 stats->tx_fragments += CSR_READ_4(sc, ET_STAT_TX_FRAG);
2677 et_get_counter(struct ifnet *ifp, ift_counter cnt)
2679 struct et_softc *sc;
2680 struct et_hw_stats *stats;
2682 sc = if_getsoftc(ifp);
2683 stats = &sc->sc_stats;
2686 case IFCOUNTER_OPACKETS:
2687 return (stats->tx_frames);
2688 case IFCOUNTER_COLLISIONS:
2689 return (stats->tx_total_colls);
2690 case IFCOUNTER_OERRORS:
2691 return (stats->tx_drop + stats->tx_jabbers +
2692 stats->tx_crcerrs + stats->tx_excess_deferred +
2693 stats->tx_late_colls);
2694 case IFCOUNTER_IPACKETS:
2695 return (stats->rx_frames);
2696 case IFCOUNTER_IERRORS:
2697 return (stats->rx_crcerrs + stats->rx_alignerrs +
2698 stats->rx_lenerrs + stats->rx_codeerrs + stats->rx_cserrs +
2699 stats->rx_runts + stats->rx_jabbers + stats->rx_drop);
2701 return (if_get_counter_default(ifp, cnt));
2706 et_suspend(device_t dev)
2708 struct et_softc *sc;
2711 sc = device_get_softc(dev);
2713 if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
2715 /* Diable all clocks and put PHY into COMA. */
2716 pmcfg = CSR_READ_4(sc, ET_PM);
2717 pmcfg &= ~(EM_PM_GIGEPHY_ENB | ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE |
2719 pmcfg |= ET_PM_PHY_SW_COMA;
2720 CSR_WRITE_4(sc, ET_PM, pmcfg);
2726 et_resume(device_t dev)
2728 struct et_softc *sc;
2731 sc = device_get_softc(dev);
2733 /* Take PHY out of COMA and enable clocks. */
2734 pmcfg = ET_PM_SYSCLK_GATE | ET_PM_TXCLK_GATE | ET_PM_RXCLK_GATE;
2735 if ((sc->sc_flags & ET_FLAG_FASTETHER) == 0)
2736 pmcfg |= EM_PM_GIGEPHY_ENB;
2737 CSR_WRITE_4(sc, ET_PM, pmcfg);
2738 if ((sc->ifp->if_flags & IFF_UP) != 0)