2 * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/jme/if_jme.c,v 1.2 2008/07/18 04:20:48 yongari Exp $
30 #include "opt_ifpoll.h"
33 #include <sys/param.h>
34 #include <sys/endian.h>
35 #include <sys/kernel.h>
37 #include <sys/interrupt.h>
38 #include <sys/malloc.h>
41 #include <sys/serialize.h>
42 #include <sys/serialize2.h>
43 #include <sys/socket.h>
44 #include <sys/sockio.h>
45 #include <sys/sysctl.h>
47 #include <net/ethernet.h>
50 #include <net/if_arp.h>
51 #include <net/if_dl.h>
52 #include <net/if_media.h>
53 #include <net/if_poll.h>
54 #include <net/ifq_var.h>
55 #include <net/toeplitz.h>
56 #include <net/toeplitz2.h>
57 #include <net/vlan/if_vlan_var.h>
58 #include <net/vlan/if_vlan_ether.h>
60 #include <netinet/ip.h>
61 #include <netinet/tcp.h>
63 #include <dev/netif/mii_layer/miivar.h>
64 #include <dev/netif/mii_layer/jmphyreg.h>
66 #include <bus/pci/pcireg.h>
67 #include <bus/pci/pcivar.h>
68 #include <bus/pci/pcidevs.h>
70 #include <dev/netif/jme/if_jmereg.h>
71 #include <dev/netif/jme/if_jmevar.h>
73 #include "miibus_if.h"
75 #define JME_TX_SERIALIZE 1
76 #define JME_RX_SERIALIZE 2
78 #define JME_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
81 #define JME_RSS_DPRINTF(sc, lvl, fmt, ...) \
83 if ((sc)->jme_rss_debug >= (lvl)) \
84 if_printf(&(sc)->arpcom.ac_if, fmt, __VA_ARGS__); \
86 #else /* !JME_RSS_DEBUG */
87 #define JME_RSS_DPRINTF(sc, lvl, fmt, ...) ((void)0)
88 #endif /* JME_RSS_DEBUG */
90 static int jme_probe(device_t);
91 static int jme_attach(device_t);
92 static int jme_detach(device_t);
93 static int jme_shutdown(device_t);
94 static int jme_suspend(device_t);
95 static int jme_resume(device_t);
97 static int jme_miibus_readreg(device_t, int, int);
98 static int jme_miibus_writereg(device_t, int, int, int);
99 static void jme_miibus_statchg(device_t);
101 static void jme_init(void *);
102 static int jme_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
103 static void jme_start(struct ifnet *);
104 static void jme_watchdog(struct ifnet *);
105 static void jme_mediastatus(struct ifnet *, struct ifmediareq *);
106 static int jme_mediachange(struct ifnet *);
108 static void jme_npoll(struct ifnet *, struct ifpoll_info *);
109 static void jme_npoll_status(struct ifnet *, int);
110 static void jme_npoll_rx(struct ifnet *, void *, int);
111 static void jme_npoll_tx(struct ifnet *, void *, int);
113 static void jme_serialize(struct ifnet *, enum ifnet_serialize);
114 static void jme_deserialize(struct ifnet *, enum ifnet_serialize);
115 static int jme_tryserialize(struct ifnet *, enum ifnet_serialize);
117 static void jme_serialize_assert(struct ifnet *, enum ifnet_serialize,
121 static void jme_intr(void *);
122 static void jme_msix_tx(void *);
123 static void jme_msix_rx(void *);
124 static void jme_msix_status(void *);
125 static void jme_txeof(struct jme_txdata *);
126 static void jme_rxeof(struct jme_rxdata *, int);
127 static void jme_rx_intr(struct jme_softc *, uint32_t);
128 static void jme_enable_intr(struct jme_softc *);
129 static void jme_disable_intr(struct jme_softc *);
130 static void jme_rx_restart(struct jme_softc *, uint32_t);
132 static int jme_msix_setup(device_t);
133 static void jme_msix_teardown(device_t, int);
134 static int jme_intr_setup(device_t);
135 static void jme_intr_teardown(device_t);
136 static void jme_msix_try_alloc(device_t);
137 static void jme_msix_free(device_t);
138 static int jme_intr_alloc(device_t);
139 static void jme_intr_free(device_t);
140 static int jme_dma_alloc(struct jme_softc *);
141 static void jme_dma_free(struct jme_softc *);
142 static int jme_init_rx_ring(struct jme_rxdata *);
143 static void jme_init_tx_ring(struct jme_txdata *);
144 static void jme_init_ssb(struct jme_softc *);
145 static int jme_newbuf(struct jme_rxdata *, struct jme_rxdesc *, int);
146 static int jme_encap(struct jme_txdata *, struct mbuf **);
147 static void jme_rxpkt(struct jme_rxdata *);
148 static int jme_rxring_dma_alloc(struct jme_rxdata *);
149 static int jme_rxbuf_dma_alloc(struct jme_rxdata *);
150 static int jme_rxbuf_dma_filter(void *, bus_addr_t);
152 static void jme_tick(void *);
153 static void jme_stop(struct jme_softc *);
154 static void jme_reset(struct jme_softc *);
155 static void jme_set_msinum(struct jme_softc *);
156 static void jme_set_vlan(struct jme_softc *);
157 static void jme_set_filter(struct jme_softc *);
158 static void jme_stop_tx(struct jme_softc *);
159 static void jme_stop_rx(struct jme_softc *);
160 static void jme_mac_config(struct jme_softc *);
161 static void jme_reg_macaddr(struct jme_softc *, uint8_t[]);
162 static int jme_eeprom_macaddr(struct jme_softc *, uint8_t[]);
163 static int jme_eeprom_read_byte(struct jme_softc *, uint8_t, uint8_t *);
165 static void jme_setwol(struct jme_softc *);
166 static void jme_setlinkspeed(struct jme_softc *);
168 static void jme_set_tx_coal(struct jme_softc *);
169 static void jme_set_rx_coal(struct jme_softc *);
170 static void jme_enable_rss(struct jme_softc *);
171 static void jme_disable_rss(struct jme_softc *);
172 static void jme_serialize_skipmain(struct jme_softc *);
173 static void jme_deserialize_skipmain(struct jme_softc *);
175 static void jme_sysctl_node(struct jme_softc *);
176 static int jme_sysctl_tx_coal_to(SYSCTL_HANDLER_ARGS);
177 static int jme_sysctl_tx_coal_pkt(SYSCTL_HANDLER_ARGS);
178 static int jme_sysctl_rx_coal_to(SYSCTL_HANDLER_ARGS);
179 static int jme_sysctl_rx_coal_pkt(SYSCTL_HANDLER_ARGS);
181 static int jme_sysctl_npoll_rxoff(SYSCTL_HANDLER_ARGS);
182 static int jme_sysctl_npoll_txoff(SYSCTL_HANDLER_ARGS);
186 * Devices supported by this driver.
188 static const struct jme_dev {
189 uint16_t jme_vendorid;
190 uint16_t jme_deviceid;
192 const char *jme_name;
194 { PCI_VENDOR_JMICRON, PCI_PRODUCT_JMICRON_JMC250,
196 "JMicron Inc, JMC250 Gigabit Ethernet" },
197 { PCI_VENDOR_JMICRON, PCI_PRODUCT_JMICRON_JMC260,
199 "JMicron Inc, JMC260 Fast Ethernet" },
203 static device_method_t jme_methods[] = {
204 /* Device interface. */
205 DEVMETHOD(device_probe, jme_probe),
206 DEVMETHOD(device_attach, jme_attach),
207 DEVMETHOD(device_detach, jme_detach),
208 DEVMETHOD(device_shutdown, jme_shutdown),
209 DEVMETHOD(device_suspend, jme_suspend),
210 DEVMETHOD(device_resume, jme_resume),
213 DEVMETHOD(bus_print_child, bus_generic_print_child),
214 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
217 DEVMETHOD(miibus_readreg, jme_miibus_readreg),
218 DEVMETHOD(miibus_writereg, jme_miibus_writereg),
219 DEVMETHOD(miibus_statchg, jme_miibus_statchg),
224 static driver_t jme_driver = {
227 sizeof(struct jme_softc)
230 static devclass_t jme_devclass;
232 DECLARE_DUMMY_MODULE(if_jme);
233 MODULE_DEPEND(if_jme, miibus, 1, 1, 1);
234 DRIVER_MODULE(if_jme, pci, jme_driver, jme_devclass, NULL, NULL);
235 DRIVER_MODULE(miibus, jme, miibus_driver, miibus_devclass, NULL, NULL);
237 static const struct {
241 } jme_rx_status[JME_NRXRING_MAX] = {
242 { INTR_RXQ0_COAL | INTR_RXQ0_COAL_TO, INTR_RXQ0_COMP,
243 INTR_RXQ0_DESC_EMPTY },
244 { INTR_RXQ1_COAL | INTR_RXQ1_COAL_TO, INTR_RXQ1_COMP,
245 INTR_RXQ1_DESC_EMPTY },
246 { INTR_RXQ2_COAL | INTR_RXQ2_COAL_TO, INTR_RXQ2_COMP,
247 INTR_RXQ2_DESC_EMPTY },
248 { INTR_RXQ3_COAL | INTR_RXQ3_COAL_TO, INTR_RXQ3_COMP,
249 INTR_RXQ3_DESC_EMPTY }
252 static int jme_rx_desc_count = JME_RX_DESC_CNT_DEF;
253 static int jme_tx_desc_count = JME_TX_DESC_CNT_DEF;
254 static int jme_rx_ring_count = 0;
255 static int jme_msi_enable = 1;
256 static int jme_msix_enable = 1;
258 TUNABLE_INT("hw.jme.rx_desc_count", &jme_rx_desc_count);
259 TUNABLE_INT("hw.jme.tx_desc_count", &jme_tx_desc_count);
260 TUNABLE_INT("hw.jme.rx_ring_count", &jme_rx_ring_count);
261 TUNABLE_INT("hw.jme.msi.enable", &jme_msi_enable);
262 TUNABLE_INT("hw.jme.msix.enable", &jme_msix_enable);
265 jme_setup_rxdesc(struct jme_rxdesc *rxd)
267 struct jme_desc *desc;
270 desc->buflen = htole32(MCLBYTES);
271 desc->addr_lo = htole32(JME_ADDR_LO(rxd->rx_paddr));
272 desc->addr_hi = htole32(JME_ADDR_HI(rxd->rx_paddr));
273 desc->flags = htole32(JME_RD_OWN | JME_RD_INTR | JME_RD_64BIT);
277 * Read a PHY register on the MII of the JMC250.
280 jme_miibus_readreg(device_t dev, int phy, int reg)
282 struct jme_softc *sc = device_get_softc(dev);
286 /* For FPGA version, PHY address 0 should be ignored. */
287 if (sc->jme_caps & JME_CAP_FPGA) {
291 if (sc->jme_phyaddr != phy)
295 CSR_WRITE_4(sc, JME_SMI, SMI_OP_READ | SMI_OP_EXECUTE |
296 SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg));
298 for (i = JME_PHY_TIMEOUT; i > 0; i--) {
300 if (((val = CSR_READ_4(sc, JME_SMI)) & SMI_OP_EXECUTE) == 0)
304 device_printf(sc->jme_dev, "phy read timeout: "
305 "phy %d, reg %d\n", phy, reg);
309 return ((val & SMI_DATA_MASK) >> SMI_DATA_SHIFT);
313 * Write a PHY register on the MII of the JMC250.
316 jme_miibus_writereg(device_t dev, int phy, int reg, int val)
318 struct jme_softc *sc = device_get_softc(dev);
321 /* For FPGA version, PHY address 0 should be ignored. */
322 if (sc->jme_caps & JME_CAP_FPGA) {
326 if (sc->jme_phyaddr != phy)
330 CSR_WRITE_4(sc, JME_SMI, SMI_OP_WRITE | SMI_OP_EXECUTE |
331 ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
332 SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg));
334 for (i = JME_PHY_TIMEOUT; i > 0; i--) {
336 if (((val = CSR_READ_4(sc, JME_SMI)) & SMI_OP_EXECUTE) == 0)
340 device_printf(sc->jme_dev, "phy write timeout: "
341 "phy %d, reg %d\n", phy, reg);
348 * Callback from MII layer when media changes.
351 jme_miibus_statchg(device_t dev)
353 struct jme_softc *sc = device_get_softc(dev);
354 struct ifnet *ifp = &sc->arpcom.ac_if;
355 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
356 struct mii_data *mii;
357 struct jme_txdesc *txd;
362 jme_serialize_skipmain(sc);
363 ASSERT_IFNET_SERIALIZED_ALL(ifp);
365 if ((ifp->if_flags & IFF_RUNNING) == 0)
368 mii = device_get_softc(sc->jme_miibus);
370 sc->jme_has_link = FALSE;
371 if ((mii->mii_media_status & IFM_AVALID) != 0) {
372 switch (IFM_SUBTYPE(mii->mii_media_active)) {
375 sc->jme_has_link = TRUE;
378 if (sc->jme_caps & JME_CAP_FASTETH)
380 sc->jme_has_link = TRUE;
388 * Disabling Rx/Tx MACs have a side-effect of resetting
389 * JME_TXNDA/JME_RXNDA register to the first address of
390 * Tx/Rx descriptor address. So driver should reset its
391 * internal procucer/consumer pointer and reclaim any
392 * allocated resources. Note, just saving the value of
393 * JME_TXNDA and JME_RXNDA registers before stopping MAC
394 * and restoring JME_TXNDA/JME_RXNDA register is not
395 * sufficient to make sure correct MAC state because
396 * stopping MAC operation can take a while and hardware
397 * might have updated JME_TXNDA/JME_RXNDA registers
398 * during the stop operation.
401 /* Disable interrupts */
402 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
405 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
407 callout_stop(&sc->jme_tick_ch);
409 /* Stop receiver/transmitter. */
413 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
414 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
416 jme_rxeof(rdata, -1);
417 if (rdata->jme_rxhead != NULL)
418 m_freem(rdata->jme_rxhead);
419 JME_RXCHAIN_RESET(rdata);
422 * Reuse configured Rx descriptors and reset
423 * procuder/consumer index.
425 rdata->jme_rx_cons = 0;
427 if (JME_ENABLE_HWRSS(sc))
433 if (tdata->jme_tx_cnt != 0) {
434 /* Remove queued packets for transmit. */
435 for (i = 0; i < tdata->jme_tx_desc_cnt; i++) {
436 txd = &tdata->jme_txdesc[i];
437 if (txd->tx_m != NULL) {
438 bus_dmamap_unload( tdata->jme_tx_tag,
447 jme_init_tx_ring(tdata);
449 /* Initialize shadow status block. */
452 /* Program MAC with resolved speed/duplex/flow-control. */
453 if (sc->jme_has_link) {
456 CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr);
458 /* Set Tx ring address to the hardware. */
459 paddr = tdata->jme_tx_ring_paddr;
460 CSR_WRITE_4(sc, JME_TXDBA_HI, JME_ADDR_HI(paddr));
461 CSR_WRITE_4(sc, JME_TXDBA_LO, JME_ADDR_LO(paddr));
463 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
464 CSR_WRITE_4(sc, JME_RXCSR,
465 sc->jme_rxcsr | RXCSR_RXQ_N_SEL(r));
467 /* Set Rx ring address to the hardware. */
468 paddr = sc->jme_cdata.jme_rx_data[r].jme_rx_ring_paddr;
469 CSR_WRITE_4(sc, JME_RXDBA_HI, JME_ADDR_HI(paddr));
470 CSR_WRITE_4(sc, JME_RXDBA_LO, JME_ADDR_LO(paddr));
473 /* Restart receiver/transmitter. */
474 CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr | RXCSR_RX_ENB |
476 CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB);
479 ifp->if_flags |= IFF_RUNNING;
480 ifp->if_flags &= ~IFF_OACTIVE;
481 callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
484 if (!(ifp->if_flags & IFF_NPOLLING))
486 /* Reenable interrupts. */
487 CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
491 jme_deserialize_skipmain(sc);
495 * Get the current interface media status.
498 jme_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
500 struct jme_softc *sc = ifp->if_softc;
501 struct mii_data *mii = device_get_softc(sc->jme_miibus);
503 ASSERT_IFNET_SERIALIZED_ALL(ifp);
506 ifmr->ifm_status = mii->mii_media_status;
507 ifmr->ifm_active = mii->mii_media_active;
511 * Set hardware to newly-selected media.
514 jme_mediachange(struct ifnet *ifp)
516 struct jme_softc *sc = ifp->if_softc;
517 struct mii_data *mii = device_get_softc(sc->jme_miibus);
520 ASSERT_IFNET_SERIALIZED_ALL(ifp);
522 if (mii->mii_instance != 0) {
523 struct mii_softc *miisc;
525 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
526 mii_phy_reset(miisc);
528 error = mii_mediachg(mii);
534 jme_probe(device_t dev)
536 const struct jme_dev *sp;
539 vid = pci_get_vendor(dev);
540 did = pci_get_device(dev);
541 for (sp = jme_devs; sp->jme_name != NULL; ++sp) {
542 if (vid == sp->jme_vendorid && did == sp->jme_deviceid) {
543 struct jme_softc *sc = device_get_softc(dev);
545 sc->jme_caps = sp->jme_caps;
546 device_set_desc(dev, sp->jme_name);
554 jme_eeprom_read_byte(struct jme_softc *sc, uint8_t addr, uint8_t *val)
560 for (i = JME_TIMEOUT; i > 0; i--) {
561 reg = CSR_READ_4(sc, JME_SMBCSR);
562 if ((reg & SMBCSR_HW_BUSY_MASK) == SMBCSR_HW_IDLE)
568 device_printf(sc->jme_dev, "EEPROM idle timeout!\n");
572 reg = ((uint32_t)addr << SMBINTF_ADDR_SHIFT) & SMBINTF_ADDR_MASK;
573 CSR_WRITE_4(sc, JME_SMBINTF, reg | SMBINTF_RD | SMBINTF_CMD_TRIGGER);
574 for (i = JME_TIMEOUT; i > 0; i--) {
576 reg = CSR_READ_4(sc, JME_SMBINTF);
577 if ((reg & SMBINTF_CMD_TRIGGER) == 0)
582 device_printf(sc->jme_dev, "EEPROM read timeout!\n");
586 reg = CSR_READ_4(sc, JME_SMBINTF);
587 *val = (reg & SMBINTF_RD_DATA_MASK) >> SMBINTF_RD_DATA_SHIFT;
593 jme_eeprom_macaddr(struct jme_softc *sc, uint8_t eaddr[])
595 uint8_t fup, reg, val;
600 if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 ||
601 fup != JME_EEPROM_SIG0)
603 if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 ||
604 fup != JME_EEPROM_SIG1)
608 if (jme_eeprom_read_byte(sc, offset, &fup) != 0)
610 if (JME_EEPROM_MKDESC(JME_EEPROM_FUNC0, JME_EEPROM_PAGE_BAR1) ==
611 (fup & (JME_EEPROM_FUNC_MASK | JME_EEPROM_PAGE_MASK))) {
612 if (jme_eeprom_read_byte(sc, offset + 1, ®) != 0)
614 if (reg >= JME_PAR0 &&
615 reg < JME_PAR0 + ETHER_ADDR_LEN) {
616 if (jme_eeprom_read_byte(sc, offset + 2,
619 eaddr[reg - JME_PAR0] = val;
623 /* Check for the end of EEPROM descriptor. */
624 if ((fup & JME_EEPROM_DESC_END) == JME_EEPROM_DESC_END)
626 /* Try next eeprom descriptor. */
627 offset += JME_EEPROM_DESC_BYTES;
628 } while (match != ETHER_ADDR_LEN && offset < JME_EEPROM_END);
630 if (match == ETHER_ADDR_LEN)
637 jme_reg_macaddr(struct jme_softc *sc, uint8_t eaddr[])
641 /* Read station address. */
642 par0 = CSR_READ_4(sc, JME_PAR0);
643 par1 = CSR_READ_4(sc, JME_PAR1);
645 if ((par0 == 0 && par1 == 0) || (par0 & 0x1)) {
646 device_printf(sc->jme_dev,
647 "generating fake ethernet address.\n");
648 par0 = karc4random();
649 /* Set OUI to JMicron. */
653 eaddr[3] = (par0 >> 16) & 0xff;
654 eaddr[4] = (par0 >> 8) & 0xff;
655 eaddr[5] = par0 & 0xff;
657 eaddr[0] = (par0 >> 0) & 0xFF;
658 eaddr[1] = (par0 >> 8) & 0xFF;
659 eaddr[2] = (par0 >> 16) & 0xFF;
660 eaddr[3] = (par0 >> 24) & 0xFF;
661 eaddr[4] = (par1 >> 0) & 0xFF;
662 eaddr[5] = (par1 >> 8) & 0xFF;
667 jme_attach(device_t dev)
669 struct jme_softc *sc = device_get_softc(dev);
670 struct ifnet *ifp = &sc->arpcom.ac_if;
673 uint8_t pcie_ptr, rev;
674 int error = 0, i, j, rx_desc_cnt, coal_max;
675 uint8_t eaddr[ETHER_ADDR_LEN];
677 int offset, offset_def;
681 * Initialize serializers
683 lwkt_serialize_init(&sc->jme_serialize);
684 lwkt_serialize_init(&sc->jme_cdata.jme_tx_data.jme_tx_serialize);
685 for (i = 0; i < JME_NRXRING_MAX; ++i) {
687 &sc->jme_cdata.jme_rx_data[i].jme_rx_serialize);
691 * Get # of RX ring descriptors
693 rx_desc_cnt = device_getenv_int(dev, "rx_desc_count",
695 rx_desc_cnt = roundup(rx_desc_cnt, JME_NDESC_ALIGN);
696 if (rx_desc_cnt > JME_NDESC_MAX)
697 rx_desc_cnt = JME_NDESC_MAX;
700 * Get # of TX ring descriptors
702 sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt =
703 device_getenv_int(dev, "tx_desc_count", jme_tx_desc_count);
704 sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt =
705 roundup(sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt, JME_NDESC_ALIGN);
706 if (sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt > JME_NDESC_MAX)
707 sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt = JME_NDESC_MAX;
712 sc->jme_cdata.jme_rx_ring_cnt = device_getenv_int(dev, "rx_ring_count",
714 sc->jme_cdata.jme_rx_ring_cnt =
715 if_ring_count2(sc->jme_cdata.jme_rx_ring_cnt, JME_NRXRING_MAX);
718 * Initialize serializer array
721 sc->jme_serialize_arr[i++] = &sc->jme_serialize;
723 KKASSERT(i == JME_TX_SERIALIZE);
724 sc->jme_serialize_arr[i++] =
725 &sc->jme_cdata.jme_tx_data.jme_tx_serialize;
727 KKASSERT(i == JME_RX_SERIALIZE);
728 for (j = 0; j < sc->jme_cdata.jme_rx_ring_cnt; ++j) {
729 sc->jme_serialize_arr[i++] =
730 &sc->jme_cdata.jme_rx_data[j].jme_rx_serialize;
732 KKASSERT(i <= JME_NSERIALIZE);
733 sc->jme_serialize_cnt = i;
736 * Setup TX ring specific data
738 sc->jme_cdata.jme_tx_data.jme_sc = sc;
741 * Setup RX rings specific data
743 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
744 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
747 rdata->jme_rx_coal = jme_rx_status[i].jme_coal;
748 rdata->jme_rx_comp = jme_rx_status[i].jme_comp;
749 rdata->jme_rx_empty = jme_rx_status[i].jme_empty;
750 rdata->jme_rx_idx = i;
751 rdata->jme_rx_desc_cnt = rx_desc_cnt;
755 sc->jme_lowaddr = BUS_SPACE_MAXADDR;
757 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
759 callout_init(&sc->jme_tick_ch);
762 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
765 irq = pci_read_config(dev, PCIR_INTLINE, 4);
766 mem = pci_read_config(dev, JME_PCIR_BAR, 4);
768 device_printf(dev, "chip is in D%d power mode "
769 "-- setting to D0\n", pci_get_powerstate(dev));
771 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
773 pci_write_config(dev, PCIR_INTLINE, irq, 4);
774 pci_write_config(dev, JME_PCIR_BAR, mem, 4);
776 #endif /* !BURN_BRIDGE */
778 /* Enable bus mastering */
779 pci_enable_busmaster(dev);
784 * JMC250 supports both memory mapped and I/O register space
785 * access. Because I/O register access should use different
786 * BARs to access registers it's waste of time to use I/O
787 * register spce access. JMC250 uses 16K to map entire memory
790 sc->jme_mem_rid = JME_PCIR_BAR;
791 sc->jme_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
792 &sc->jme_mem_rid, RF_ACTIVE);
793 if (sc->jme_mem_res == NULL) {
794 device_printf(dev, "can't allocate IO memory\n");
797 sc->jme_mem_bt = rman_get_bustag(sc->jme_mem_res);
798 sc->jme_mem_bh = rman_get_bushandle(sc->jme_mem_res);
803 error = jme_intr_alloc(dev);
810 reg = CSR_READ_4(sc, JME_CHIPMODE);
811 if (((reg & CHIPMODE_FPGA_REV_MASK) >> CHIPMODE_FPGA_REV_SHIFT) !=
813 sc->jme_caps |= JME_CAP_FPGA;
815 device_printf(dev, "FPGA revision: 0x%04x\n",
816 (reg & CHIPMODE_FPGA_REV_MASK) >>
817 CHIPMODE_FPGA_REV_SHIFT);
821 /* NOTE: FM revision is put in the upper 4 bits */
822 rev = ((reg & CHIPMODE_REVFM_MASK) >> CHIPMODE_REVFM_SHIFT) << 4;
823 rev |= (reg & CHIPMODE_REVECO_MASK) >> CHIPMODE_REVECO_SHIFT;
825 device_printf(dev, "Revision (FM/ECO): 0x%02x\n", rev);
827 did = pci_get_device(dev);
829 case PCI_PRODUCT_JMICRON_JMC250:
830 if (rev == JME_REV1_A2)
831 sc->jme_workaround |= JME_WA_EXTFIFO | JME_WA_HDX;
834 case PCI_PRODUCT_JMICRON_JMC260:
836 sc->jme_lowaddr = BUS_SPACE_MAXADDR_32BIT;
840 panic("unknown device id 0x%04x", did);
842 if (rev >= JME_REV2) {
843 sc->jme_clksrc = GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC;
844 sc->jme_clksrc_1000 = GHC_TXOFL_CLKSRC_1000 |
845 GHC_TXMAC_CLKSRC_1000;
848 /* Reset the ethernet controller. */
851 /* Map MSI/MSI-X vectors */
854 /* Get station address. */
855 reg = CSR_READ_4(sc, JME_SMBCSR);
856 if (reg & SMBCSR_EEPROM_PRESENT)
857 error = jme_eeprom_macaddr(sc, eaddr);
858 if (error != 0 || (reg & SMBCSR_EEPROM_PRESENT) == 0) {
859 if (error != 0 && (bootverbose)) {
860 device_printf(dev, "ethernet hardware address "
861 "not found in EEPROM.\n");
863 jme_reg_macaddr(sc, eaddr);
868 * Integrated JR0211 has fixed PHY address whereas FPGA version
869 * requires PHY probing to get correct PHY address.
871 if ((sc->jme_caps & JME_CAP_FPGA) == 0) {
872 sc->jme_phyaddr = CSR_READ_4(sc, JME_GPREG0) &
873 GPREG0_PHY_ADDR_MASK;
875 device_printf(dev, "PHY is at address %d.\n",
882 /* Set max allowable DMA size. */
883 pcie_ptr = pci_get_pciecap_ptr(dev);
887 sc->jme_caps |= JME_CAP_PCIE;
888 ctrl = pci_read_config(dev, pcie_ptr + PCIER_DEVCTRL, 2);
890 device_printf(dev, "Read request size : %d bytes.\n",
891 128 << ((ctrl >> 12) & 0x07));
892 device_printf(dev, "TLP payload size : %d bytes.\n",
893 128 << ((ctrl >> 5) & 0x07));
895 switch (ctrl & PCIEM_DEVCTL_MAX_READRQ_MASK) {
896 case PCIEM_DEVCTL_MAX_READRQ_128:
897 sc->jme_tx_dma_size = TXCSR_DMA_SIZE_128;
899 case PCIEM_DEVCTL_MAX_READRQ_256:
900 sc->jme_tx_dma_size = TXCSR_DMA_SIZE_256;
903 sc->jme_tx_dma_size = TXCSR_DMA_SIZE_512;
906 sc->jme_rx_dma_size = RXCSR_DMA_SIZE_128;
908 sc->jme_tx_dma_size = TXCSR_DMA_SIZE_512;
909 sc->jme_rx_dma_size = RXCSR_DMA_SIZE_128;
913 if (pci_find_extcap(dev, PCIY_PMG, &pmc) == 0)
914 sc->jme_caps |= JME_CAP_PMCAP;
919 * NPOLLING RX CPU offset
921 if (sc->jme_cdata.jme_rx_ring_cnt == ncpus2) {
924 offset_def = (sc->jme_cdata.jme_rx_ring_cnt *
925 device_get_unit(dev)) % ncpus2;
926 offset = device_getenv_int(dev, "npoll.rxoff", offset_def);
927 if (offset >= ncpus2 ||
928 offset % sc->jme_cdata.jme_rx_ring_cnt != 0) {
929 device_printf(dev, "invalid npoll.rxoff %d, use %d\n",
934 sc->jme_npoll_rxoff = offset;
937 * NPOLLING TX CPU offset
939 offset_def = sc->jme_npoll_rxoff;
940 offset = device_getenv_int(dev, "npoll.txoff", offset_def);
941 if (offset >= ncpus2) {
942 device_printf(dev, "invalid npoll.txoff %d, use %d\n",
946 sc->jme_npoll_txoff = offset;
950 * Set default coalesce valves
952 sc->jme_tx_coal_to = PCCTX_COAL_TO_DEFAULT;
953 sc->jme_tx_coal_pkt = PCCTX_COAL_PKT_DEFAULT;
954 sc->jme_rx_coal_to = PCCRX_COAL_TO_DEFAULT;
955 sc->jme_rx_coal_pkt = PCCRX_COAL_PKT_DEFAULT;
958 * Adjust coalesce valves, in case that the number of TX/RX
959 * descs are set to small values by users.
961 * NOTE: coal_max will not be zero, since number of descs
962 * must aligned by JME_NDESC_ALIGN (16 currently)
964 coal_max = sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt / 2;
965 if (coal_max < sc->jme_tx_coal_pkt)
966 sc->jme_tx_coal_pkt = coal_max;
968 coal_max = sc->jme_cdata.jme_rx_data[0].jme_rx_desc_cnt / 2;
969 if (coal_max < sc->jme_rx_coal_pkt)
970 sc->jme_rx_coal_pkt = coal_max;
977 /* Allocate DMA stuffs */
978 error = jme_dma_alloc(sc);
983 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
984 ifp->if_init = jme_init;
985 ifp->if_ioctl = jme_ioctl;
986 ifp->if_start = jme_start;
988 ifp->if_npoll = jme_npoll;
990 ifp->if_watchdog = jme_watchdog;
991 ifp->if_serialize = jme_serialize;
992 ifp->if_deserialize = jme_deserialize;
993 ifp->if_tryserialize = jme_tryserialize;
995 ifp->if_serialize_assert = jme_serialize_assert;
997 ifq_set_maxlen(&ifp->if_snd,
998 sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt - JME_TXD_RSVD);
999 ifq_set_ready(&ifp->if_snd);
1001 /* JMC250 supports Tx/Rx checksum offload and hardware vlan tagging. */
1002 ifp->if_capabilities = IFCAP_HWCSUM |
1005 IFCAP_VLAN_HWTAGGING;
1006 if (sc->jme_cdata.jme_rx_ring_cnt > JME_NRXRING_MIN)
1007 ifp->if_capabilities |= IFCAP_RSS;
1008 ifp->if_capenable = ifp->if_capabilities;
1011 * Disable TXCSUM by default to improve bulk data
1012 * transmit performance (+20Mbps improvement).
1014 ifp->if_capenable &= ~IFCAP_TXCSUM;
1016 if (ifp->if_capenable & IFCAP_TXCSUM)
1017 ifp->if_hwassist |= JME_CSUM_FEATURES;
1018 ifp->if_hwassist |= CSUM_TSO;
1020 /* Set up MII bus. */
1021 error = mii_phy_probe(dev, &sc->jme_miibus,
1022 jme_mediachange, jme_mediastatus);
1024 device_printf(dev, "no PHY found!\n");
1029 * Save PHYADDR for FPGA mode PHY.
1031 if (sc->jme_caps & JME_CAP_FPGA) {
1032 struct mii_data *mii = device_get_softc(sc->jme_miibus);
1034 if (mii->mii_instance != 0) {
1035 struct mii_softc *miisc;
1037 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
1038 if (miisc->mii_phy != 0) {
1039 sc->jme_phyaddr = miisc->mii_phy;
1043 if (sc->jme_phyaddr != 0) {
1044 device_printf(sc->jme_dev,
1045 "FPGA PHY is at %d\n", sc->jme_phyaddr);
1047 jme_miibus_writereg(dev, sc->jme_phyaddr,
1048 JMPHY_CONF, JMPHY_CONF_DEFFIFO);
1050 /* XXX should we clear JME_WA_EXTFIFO */
1055 ether_ifattach(ifp, eaddr, NULL);
1057 /* Tell the upper layer(s) we support long frames. */
1058 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
1060 error = jme_intr_setup(dev);
1062 ether_ifdetach(ifp);
1073 jme_detach(device_t dev)
1075 struct jme_softc *sc = device_get_softc(dev);
1077 if (device_is_attached(dev)) {
1078 struct ifnet *ifp = &sc->arpcom.ac_if;
1080 ifnet_serialize_all(ifp);
1082 jme_intr_teardown(dev);
1083 ifnet_deserialize_all(ifp);
1085 ether_ifdetach(ifp);
1088 if (sc->jme_sysctl_tree != NULL)
1089 sysctl_ctx_free(&sc->jme_sysctl_ctx);
1091 if (sc->jme_miibus != NULL)
1092 device_delete_child(dev, sc->jme_miibus);
1093 bus_generic_detach(dev);
1097 if (sc->jme_mem_res != NULL) {
1098 bus_release_resource(dev, SYS_RES_MEMORY, sc->jme_mem_rid,
1108 jme_sysctl_node(struct jme_softc *sc)
1110 #ifdef JME_RSS_DEBUG
1114 sysctl_ctx_init(&sc->jme_sysctl_ctx);
1115 sc->jme_sysctl_tree = SYSCTL_ADD_NODE(&sc->jme_sysctl_ctx,
1116 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
1117 device_get_nameunit(sc->jme_dev),
1119 if (sc->jme_sysctl_tree == NULL) {
1120 device_printf(sc->jme_dev, "can't add sysctl node\n");
1124 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1125 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1126 "tx_coal_to", CTLTYPE_INT | CTLFLAG_RW,
1127 sc, 0, jme_sysctl_tx_coal_to, "I", "jme tx coalescing timeout");
1129 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1130 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1131 "tx_coal_pkt", CTLTYPE_INT | CTLFLAG_RW,
1132 sc, 0, jme_sysctl_tx_coal_pkt, "I", "jme tx coalescing packet");
1134 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1135 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1136 "rx_coal_to", CTLTYPE_INT | CTLFLAG_RW,
1137 sc, 0, jme_sysctl_rx_coal_to, "I", "jme rx coalescing timeout");
1139 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1140 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1141 "rx_coal_pkt", CTLTYPE_INT | CTLFLAG_RW,
1142 sc, 0, jme_sysctl_rx_coal_pkt, "I", "jme rx coalescing packet");
1144 SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1145 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1146 "rx_desc_count", CTLFLAG_RD,
1147 &sc->jme_cdata.jme_rx_data[0].jme_rx_desc_cnt,
1148 0, "RX desc count");
1149 SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1150 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1151 "tx_desc_count", CTLFLAG_RD,
1152 &sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt,
1153 0, "TX desc count");
1154 SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1155 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1156 "rx_ring_count", CTLFLAG_RD,
1157 &sc->jme_cdata.jme_rx_ring_cnt,
1158 0, "RX ring count");
1160 #ifdef JME_RSS_DEBUG
1161 SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1162 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1163 "rss_debug", CTLFLAG_RW, &sc->jme_rss_debug,
1164 0, "RSS debug level");
1165 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
1166 char rx_ring_desc[32];
1168 ksnprintf(rx_ring_desc, sizeof(rx_ring_desc),
1169 "rx_ring%d_pkt", r);
1170 SYSCTL_ADD_ULONG(&sc->jme_sysctl_ctx,
1171 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1172 rx_ring_desc, CTLFLAG_RW,
1173 &sc->jme_cdata.jme_rx_data[r].jme_rx_pkt, "RXed packets");
1175 ksnprintf(rx_ring_desc, sizeof(rx_ring_desc),
1176 "rx_ring%d_emp", r);
1177 SYSCTL_ADD_ULONG(&sc->jme_sysctl_ctx,
1178 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1179 rx_ring_desc, CTLFLAG_RW,
1180 &sc->jme_cdata.jme_rx_data[r].jme_rx_emp,
1181 "# of time RX ring empty");
1185 #ifdef IFPOLL_ENABLE
1186 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1187 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1188 "npoll_rxoff", CTLTYPE_INT|CTLFLAG_RW, sc, 0,
1189 jme_sysctl_npoll_rxoff, "I", "NPOLLING RX cpu offset");
1190 SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
1191 SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1192 "npoll_txoff", CTLTYPE_INT|CTLFLAG_RW, sc, 0,
1193 jme_sysctl_npoll_txoff, "I", "NPOLLING TX cpu offset");
1198 jme_dma_alloc(struct jme_softc *sc)
1200 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
1201 struct jme_txdesc *txd;
1203 int error, i, asize;
1205 asize = __VM_CACHELINE_ALIGN(
1206 tdata->jme_tx_desc_cnt * sizeof(struct jme_txdesc));
1207 tdata->jme_txdesc = kmalloc_cachealign(asize, M_DEVBUF,
1210 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
1211 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
1213 asize = __VM_CACHELINE_ALIGN(
1214 rdata->jme_rx_desc_cnt * sizeof(struct jme_rxdesc));
1215 rdata->jme_rxdesc = kmalloc_cachealign(asize, M_DEVBUF,
1219 /* Create parent ring tag. */
1220 error = bus_dma_tag_create(NULL,/* parent */
1221 1, JME_RING_BOUNDARY, /* algnmnt, boundary */
1222 sc->jme_lowaddr, /* lowaddr */
1223 BUS_SPACE_MAXADDR, /* highaddr */
1224 NULL, NULL, /* filter, filterarg */
1225 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
1227 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1229 &sc->jme_cdata.jme_ring_tag);
1231 device_printf(sc->jme_dev,
1232 "could not create parent ring DMA tag.\n");
1237 * Create DMA stuffs for TX ring
1239 asize = roundup2(JME_TX_RING_SIZE(tdata), JME_TX_RING_ALIGN);
1240 error = bus_dmamem_coherent(sc->jme_cdata.jme_ring_tag,
1241 JME_TX_RING_ALIGN, 0,
1242 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1243 asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
1245 device_printf(sc->jme_dev, "could not allocate Tx ring.\n");
1248 tdata->jme_tx_ring_tag = dmem.dmem_tag;
1249 tdata->jme_tx_ring_map = dmem.dmem_map;
1250 tdata->jme_tx_ring = dmem.dmem_addr;
1251 tdata->jme_tx_ring_paddr = dmem.dmem_busaddr;
1254 * Create DMA stuffs for RX rings
1256 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
1257 error = jme_rxring_dma_alloc(&sc->jme_cdata.jme_rx_data[i]);
1262 /* Create parent buffer tag. */
1263 error = bus_dma_tag_create(NULL,/* parent */
1264 1, 0, /* algnmnt, boundary */
1265 sc->jme_lowaddr, /* lowaddr */
1266 BUS_SPACE_MAXADDR, /* highaddr */
1267 NULL, NULL, /* filter, filterarg */
1268 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
1270 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
1272 &sc->jme_cdata.jme_buffer_tag);
1274 device_printf(sc->jme_dev,
1275 "could not create parent buffer DMA tag.\n");
1280 * Create DMA stuffs for shadow status block
1282 asize = roundup2(JME_SSB_SIZE, JME_SSB_ALIGN);
1283 error = bus_dmamem_coherent(sc->jme_cdata.jme_buffer_tag,
1284 JME_SSB_ALIGN, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1285 asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
1287 device_printf(sc->jme_dev,
1288 "could not create shadow status block.\n");
1291 sc->jme_cdata.jme_ssb_tag = dmem.dmem_tag;
1292 sc->jme_cdata.jme_ssb_map = dmem.dmem_map;
1293 sc->jme_cdata.jme_ssb_block = dmem.dmem_addr;
1294 sc->jme_cdata.jme_ssb_block_paddr = dmem.dmem_busaddr;
1297 * Create DMA stuffs for TX buffers
1300 /* Create tag for Tx buffers. */
1301 error = bus_dma_tag_create(sc->jme_cdata.jme_buffer_tag,/* parent */
1302 1, 0, /* algnmnt, boundary */
1303 BUS_SPACE_MAXADDR, /* lowaddr */
1304 BUS_SPACE_MAXADDR, /* highaddr */
1305 NULL, NULL, /* filter, filterarg */
1306 JME_TSO_MAXSIZE, /* maxsize */
1307 JME_MAXTXSEGS, /* nsegments */
1308 JME_MAXSEGSIZE, /* maxsegsize */
1309 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,/* flags */
1310 &tdata->jme_tx_tag);
1312 device_printf(sc->jme_dev, "could not create Tx DMA tag.\n");
1316 /* Create DMA maps for Tx buffers. */
1317 for (i = 0; i < tdata->jme_tx_desc_cnt; i++) {
1318 txd = &tdata->jme_txdesc[i];
1319 error = bus_dmamap_create(tdata->jme_tx_tag,
1320 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
1325 device_printf(sc->jme_dev,
1326 "could not create %dth Tx dmamap.\n", i);
1328 for (j = 0; j < i; ++j) {
1329 txd = &tdata->jme_txdesc[j];
1330 bus_dmamap_destroy(tdata->jme_tx_tag,
1333 bus_dma_tag_destroy(tdata->jme_tx_tag);
1334 tdata->jme_tx_tag = NULL;
1340 * Create DMA stuffs for RX buffers
1342 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
1343 error = jme_rxbuf_dma_alloc(&sc->jme_cdata.jme_rx_data[i]);
1351 jme_dma_free(struct jme_softc *sc)
1353 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
1354 struct jme_txdesc *txd;
1355 struct jme_rxdesc *rxd;
1356 struct jme_rxdata *rdata;
1360 if (tdata->jme_tx_ring_tag != NULL) {
1361 bus_dmamap_unload(tdata->jme_tx_ring_tag,
1362 tdata->jme_tx_ring_map);
1363 bus_dmamem_free(tdata->jme_tx_ring_tag,
1364 tdata->jme_tx_ring, tdata->jme_tx_ring_map);
1365 bus_dma_tag_destroy(tdata->jme_tx_ring_tag);
1366 tdata->jme_tx_ring_tag = NULL;
1370 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
1371 rdata = &sc->jme_cdata.jme_rx_data[r];
1372 if (rdata->jme_rx_ring_tag != NULL) {
1373 bus_dmamap_unload(rdata->jme_rx_ring_tag,
1374 rdata->jme_rx_ring_map);
1375 bus_dmamem_free(rdata->jme_rx_ring_tag,
1377 rdata->jme_rx_ring_map);
1378 bus_dma_tag_destroy(rdata->jme_rx_ring_tag);
1379 rdata->jme_rx_ring_tag = NULL;
1384 if (tdata->jme_tx_tag != NULL) {
1385 for (i = 0; i < tdata->jme_tx_desc_cnt; i++) {
1386 txd = &tdata->jme_txdesc[i];
1387 bus_dmamap_destroy(tdata->jme_tx_tag, txd->tx_dmamap);
1389 bus_dma_tag_destroy(tdata->jme_tx_tag);
1390 tdata->jme_tx_tag = NULL;
1394 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
1395 rdata = &sc->jme_cdata.jme_rx_data[r];
1396 if (rdata->jme_rx_tag != NULL) {
1397 for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
1398 rxd = &rdata->jme_rxdesc[i];
1399 bus_dmamap_destroy(rdata->jme_rx_tag,
1402 bus_dmamap_destroy(rdata->jme_rx_tag,
1403 rdata->jme_rx_sparemap);
1404 bus_dma_tag_destroy(rdata->jme_rx_tag);
1405 rdata->jme_rx_tag = NULL;
1409 /* Shadow status block. */
1410 if (sc->jme_cdata.jme_ssb_tag != NULL) {
1411 bus_dmamap_unload(sc->jme_cdata.jme_ssb_tag,
1412 sc->jme_cdata.jme_ssb_map);
1413 bus_dmamem_free(sc->jme_cdata.jme_ssb_tag,
1414 sc->jme_cdata.jme_ssb_block,
1415 sc->jme_cdata.jme_ssb_map);
1416 bus_dma_tag_destroy(sc->jme_cdata.jme_ssb_tag);
1417 sc->jme_cdata.jme_ssb_tag = NULL;
1420 if (sc->jme_cdata.jme_buffer_tag != NULL) {
1421 bus_dma_tag_destroy(sc->jme_cdata.jme_buffer_tag);
1422 sc->jme_cdata.jme_buffer_tag = NULL;
1424 if (sc->jme_cdata.jme_ring_tag != NULL) {
1425 bus_dma_tag_destroy(sc->jme_cdata.jme_ring_tag);
1426 sc->jme_cdata.jme_ring_tag = NULL;
1429 if (tdata->jme_txdesc != NULL) {
1430 kfree(tdata->jme_txdesc, M_DEVBUF);
1431 tdata->jme_txdesc = NULL;
1433 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
1434 rdata = &sc->jme_cdata.jme_rx_data[r];
1435 if (rdata->jme_rxdesc != NULL) {
1436 kfree(rdata->jme_rxdesc, M_DEVBUF);
1437 rdata->jme_rxdesc = NULL;
1443 * Make sure the interface is stopped at reboot time.
1446 jme_shutdown(device_t dev)
1448 return jme_suspend(dev);
1453 * Unlike other ethernet controllers, JMC250 requires
1454 * explicit resetting link speed to 10/100Mbps as gigabit
1455 * link will cunsume more power than 375mA.
1456 * Note, we reset the link speed to 10/100Mbps with
1457 * auto-negotiation but we don't know whether that operation
1458 * would succeed or not as we have no control after powering
1459 * off. If the renegotiation fail WOL may not work. Running
1460 * at 1Gbps draws more power than 375mA at 3.3V which is
1461 * specified in PCI specification and that would result in
1462 * complete shutdowning power to ethernet controller.
1465 * Save current negotiated media speed/duplex/flow-control
1466 * to softc and restore the same link again after resuming.
1467 * PHY handling such as power down/resetting to 100Mbps
1468 * may be better handled in suspend method in phy driver.
1471 jme_setlinkspeed(struct jme_softc *sc)
1473 struct mii_data *mii;
1476 JME_LOCK_ASSERT(sc);
1478 mii = device_get_softc(sc->jme_miibus);
1481 if ((mii->mii_media_status & IFM_AVALID) != 0) {
1482 switch IFM_SUBTYPE(mii->mii_media_active) {
1492 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_100T2CR, 0);
1493 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_ANAR,
1494 ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10 | ANAR_CSMA);
1495 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_BMCR,
1496 BMCR_AUTOEN | BMCR_STARTNEG);
1499 /* Poll link state until jme(4) get a 10/100 link. */
1500 for (i = 0; i < MII_ANEGTICKS_GIGE; i++) {
1502 if ((mii->mii_media_status & IFM_AVALID) != 0) {
1503 switch (IFM_SUBTYPE(mii->mii_media_active)) {
1513 pause("jmelnk", hz);
1516 if (i == MII_ANEGTICKS_GIGE)
1517 device_printf(sc->jme_dev, "establishing link failed, "
1518 "WOL may not work!");
1521 * No link, force MAC to have 100Mbps, full-duplex link.
1522 * This is the last resort and may/may not work.
1524 mii->mii_media_status = IFM_AVALID | IFM_ACTIVE;
1525 mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX;
1530 jme_setwol(struct jme_softc *sc)
1532 struct ifnet *ifp = &sc->arpcom.ac_if;
1537 if (pci_find_extcap(sc->jme_dev, PCIY_PMG, &pmc) != 0) {
1538 /* No PME capability, PHY power down. */
1539 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
1540 MII_BMCR, BMCR_PDOWN);
1544 gpr = CSR_READ_4(sc, JME_GPREG0) & ~GPREG0_PME_ENB;
1545 pmcs = CSR_READ_4(sc, JME_PMCS);
1546 pmcs &= ~PMCS_WOL_ENB_MASK;
1547 if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0) {
1548 pmcs |= PMCS_MAGIC_FRAME | PMCS_MAGIC_FRAME_ENB;
1549 /* Enable PME message. */
1550 gpr |= GPREG0_PME_ENB;
1551 /* For gigabit controllers, reset link speed to 10/100. */
1552 if ((sc->jme_caps & JME_CAP_FASTETH) == 0)
1553 jme_setlinkspeed(sc);
1556 CSR_WRITE_4(sc, JME_PMCS, pmcs);
1557 CSR_WRITE_4(sc, JME_GPREG0, gpr);
1560 pmstat = pci_read_config(sc->jme_dev, pmc + PCIR_POWER_STATUS, 2);
1561 pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
1562 if ((ifp->if_capenable & IFCAP_WOL) != 0)
1563 pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
1564 pci_write_config(sc->jme_dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
1565 if ((ifp->if_capenable & IFCAP_WOL) == 0) {
1566 /* No WOL, PHY power down. */
1567 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
1568 MII_BMCR, BMCR_PDOWN);
1574 jme_suspend(device_t dev)
1576 struct jme_softc *sc = device_get_softc(dev);
1577 struct ifnet *ifp = &sc->arpcom.ac_if;
1579 ifnet_serialize_all(ifp);
1584 ifnet_deserialize_all(ifp);
1590 jme_resume(device_t dev)
1592 struct jme_softc *sc = device_get_softc(dev);
1593 struct ifnet *ifp = &sc->arpcom.ac_if;
1598 ifnet_serialize_all(ifp);
1601 if (pci_find_extcap(sc->jme_dev, PCIY_PMG, &pmc) != 0) {
1604 pmstat = pci_read_config(sc->jme_dev,
1605 pmc + PCIR_POWER_STATUS, 2);
1606 /* Disable PME clear PME status. */
1607 pmstat &= ~PCIM_PSTAT_PMEENABLE;
1608 pci_write_config(sc->jme_dev,
1609 pmc + PCIR_POWER_STATUS, pmstat, 2);
1613 if (ifp->if_flags & IFF_UP)
1616 ifnet_deserialize_all(ifp);
1622 jme_tso_pullup(struct mbuf **mp)
1624 int hoff, iphlen, thoff;
1628 KASSERT(M_WRITABLE(m), ("TSO mbuf not writable"));
1630 iphlen = m->m_pkthdr.csum_iphlen;
1631 thoff = m->m_pkthdr.csum_thlen;
1632 hoff = m->m_pkthdr.csum_lhlen;
1634 KASSERT(iphlen > 0, ("invalid ip hlen"));
1635 KASSERT(thoff > 0, ("invalid tcp hlen"));
1636 KASSERT(hoff > 0, ("invalid ether hlen"));
1638 if (__predict_false(m->m_len < hoff + iphlen + thoff)) {
1639 m = m_pullup(m, hoff + iphlen + thoff);
1650 jme_encap(struct jme_txdata *tdata, struct mbuf **m_head)
1652 struct jme_txdesc *txd;
1653 struct jme_desc *desc;
1655 bus_dma_segment_t txsegs[JME_MAXTXSEGS];
1657 int error, i, prod, symbol_desc;
1658 uint32_t cflags, flag64, mss;
1660 M_ASSERTPKTHDR((*m_head));
1662 if ((*m_head)->m_pkthdr.csum_flags & CSUM_TSO) {
1663 /* XXX Is this necessary? */
1664 error = jme_tso_pullup(m_head);
1669 prod = tdata->jme_tx_prod;
1670 txd = &tdata->jme_txdesc[prod];
1672 if (tdata->jme_sc->jme_lowaddr != BUS_SPACE_MAXADDR_32BIT)
1677 maxsegs = (tdata->jme_tx_desc_cnt - tdata->jme_tx_cnt) -
1678 (JME_TXD_RSVD + symbol_desc);
1679 if (maxsegs > JME_MAXTXSEGS)
1680 maxsegs = JME_MAXTXSEGS;
1681 KASSERT(maxsegs >= (JME_TXD_SPARE - symbol_desc),
1682 ("not enough segments %d", maxsegs));
1684 error = bus_dmamap_load_mbuf_defrag(tdata->jme_tx_tag,
1685 txd->tx_dmamap, m_head,
1686 txsegs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
1690 bus_dmamap_sync(tdata->jme_tx_tag, txd->tx_dmamap,
1691 BUS_DMASYNC_PREWRITE);
1697 /* Configure checksum offload. */
1698 if (m->m_pkthdr.csum_flags & CSUM_TSO) {
1699 mss = (uint32_t)m->m_pkthdr.tso_segsz << JME_TD_MSS_SHIFT;
1700 cflags |= JME_TD_TSO;
1701 } else if (m->m_pkthdr.csum_flags & JME_CSUM_FEATURES) {
1702 if (m->m_pkthdr.csum_flags & CSUM_IP)
1703 cflags |= JME_TD_IPCSUM;
1704 if (m->m_pkthdr.csum_flags & CSUM_TCP)
1705 cflags |= JME_TD_TCPCSUM;
1706 if (m->m_pkthdr.csum_flags & CSUM_UDP)
1707 cflags |= JME_TD_UDPCSUM;
1710 /* Configure VLAN. */
1711 if (m->m_flags & M_VLANTAG) {
1712 cflags |= (m->m_pkthdr.ether_vlantag & JME_TD_VLAN_MASK);
1713 cflags |= JME_TD_VLAN_TAG;
1716 desc = &tdata->jme_tx_ring[prod];
1717 desc->flags = htole32(cflags);
1718 desc->addr_hi = htole32(m->m_pkthdr.len);
1719 if (tdata->jme_sc->jme_lowaddr != BUS_SPACE_MAXADDR_32BIT) {
1721 * Use 64bits TX desc chain format.
1723 * The first TX desc of the chain, which is setup here,
1724 * is just a symbol TX desc carrying no payload.
1726 flag64 = JME_TD_64BIT;
1727 desc->buflen = htole32(mss);
1730 /* No effective TX desc is consumed */
1734 * Use 32bits TX desc chain format.
1736 * The first TX desc of the chain, which is setup here,
1737 * is an effective TX desc carrying the first segment of
1741 desc->buflen = htole32(mss | txsegs[0].ds_len);
1742 desc->addr_lo = htole32(JME_ADDR_LO(txsegs[0].ds_addr));
1744 /* One effective TX desc is consumed */
1747 tdata->jme_tx_cnt++;
1748 KKASSERT(tdata->jme_tx_cnt - i < tdata->jme_tx_desc_cnt - JME_TXD_RSVD);
1749 JME_DESC_INC(prod, tdata->jme_tx_desc_cnt);
1751 txd->tx_ndesc = 1 - i;
1752 for (; i < nsegs; i++) {
1753 desc = &tdata->jme_tx_ring[prod];
1754 desc->buflen = htole32(txsegs[i].ds_len);
1755 desc->addr_hi = htole32(JME_ADDR_HI(txsegs[i].ds_addr));
1756 desc->addr_lo = htole32(JME_ADDR_LO(txsegs[i].ds_addr));
1757 desc->flags = htole32(JME_TD_OWN | flag64);
1759 tdata->jme_tx_cnt++;
1760 KKASSERT(tdata->jme_tx_cnt <=
1761 tdata->jme_tx_desc_cnt - JME_TXD_RSVD);
1762 JME_DESC_INC(prod, tdata->jme_tx_desc_cnt);
1765 /* Update producer index. */
1766 tdata->jme_tx_prod = prod;
1768 * Finally request interrupt and give the first descriptor
1769 * owenership to hardware.
1771 desc = txd->tx_desc;
1772 desc->flags |= htole32(JME_TD_OWN | JME_TD_INTR);
1775 txd->tx_ndesc += nsegs;
1785 jme_start(struct ifnet *ifp)
1787 struct jme_softc *sc = ifp->if_softc;
1788 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
1789 struct mbuf *m_head;
1792 ASSERT_SERIALIZED(&tdata->jme_tx_serialize);
1794 if (!sc->jme_has_link) {
1795 ifq_purge(&ifp->if_snd);
1799 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
1802 if (tdata->jme_tx_cnt >= JME_TX_DESC_HIWAT(tdata))
1805 while (!ifq_is_empty(&ifp->if_snd)) {
1807 * Check number of available TX descs, always
1808 * leave JME_TXD_RSVD free TX descs.
1810 if (tdata->jme_tx_cnt + JME_TXD_SPARE >
1811 tdata->jme_tx_desc_cnt - JME_TXD_RSVD) {
1812 ifp->if_flags |= IFF_OACTIVE;
1816 m_head = ifq_dequeue(&ifp->if_snd, NULL);
1821 * Pack the data into the transmit ring. If we
1822 * don't have room, set the OACTIVE flag and wait
1823 * for the NIC to drain the ring.
1825 if (jme_encap(tdata, &m_head)) {
1826 KKASSERT(m_head == NULL);
1828 ifp->if_flags |= IFF_OACTIVE;
1834 * If there's a BPF listener, bounce a copy of this frame
1837 ETHER_BPF_MTAP(ifp, m_head);
1842 * Reading TXCSR takes very long time under heavy load
1843 * so cache TXCSR value and writes the ORed value with
1844 * the kick command to the TXCSR. This saves one register
1847 CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB |
1848 TXCSR_TXQ_N_START(TXCSR_TXQ0));
1849 /* Set a timeout in case the chip goes out to lunch. */
1850 ifp->if_timer = JME_TX_TIMEOUT;
1855 jme_watchdog(struct ifnet *ifp)
1857 struct jme_softc *sc = ifp->if_softc;
1858 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
1860 ASSERT_IFNET_SERIALIZED_ALL(ifp);
1862 if (!sc->jme_has_link) {
1863 if_printf(ifp, "watchdog timeout (missed link)\n");
1870 if (tdata->jme_tx_cnt == 0) {
1871 if_printf(ifp, "watchdog timeout (missed Tx interrupts) "
1873 if (!ifq_is_empty(&ifp->if_snd))
1878 if_printf(ifp, "watchdog timeout\n");
1881 if (!ifq_is_empty(&ifp->if_snd))
1886 jme_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
1888 struct jme_softc *sc = ifp->if_softc;
1889 struct mii_data *mii = device_get_softc(sc->jme_miibus);
1890 struct ifreq *ifr = (struct ifreq *)data;
1891 int error = 0, mask;
1893 ASSERT_IFNET_SERIALIZED_ALL(ifp);
1897 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > JME_JUMBO_MTU ||
1898 (!(sc->jme_caps & JME_CAP_JUMBO) &&
1899 ifr->ifr_mtu > JME_MAX_MTU)) {
1904 if (ifp->if_mtu != ifr->ifr_mtu) {
1906 * No special configuration is required when interface
1907 * MTU is changed but availability of Tx checksum
1908 * offload should be chcked against new MTU size as
1909 * FIFO size is just 2K.
1911 if (ifr->ifr_mtu >= JME_TX_FIFO_SIZE) {
1912 ifp->if_capenable &=
1913 ~(IFCAP_TXCSUM | IFCAP_TSO);
1915 ~(JME_CSUM_FEATURES | CSUM_TSO);
1917 ifp->if_mtu = ifr->ifr_mtu;
1918 if (ifp->if_flags & IFF_RUNNING)
1924 if (ifp->if_flags & IFF_UP) {
1925 if (ifp->if_flags & IFF_RUNNING) {
1926 if ((ifp->if_flags ^ sc->jme_if_flags) &
1927 (IFF_PROMISC | IFF_ALLMULTI))
1933 if (ifp->if_flags & IFF_RUNNING)
1936 sc->jme_if_flags = ifp->if_flags;
1941 if (ifp->if_flags & IFF_RUNNING)
1947 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
1951 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
1953 if ((mask & IFCAP_TXCSUM) && ifp->if_mtu < JME_TX_FIFO_SIZE) {
1954 ifp->if_capenable ^= IFCAP_TXCSUM;
1955 if (ifp->if_capenable & IFCAP_TXCSUM)
1956 ifp->if_hwassist |= JME_CSUM_FEATURES;
1958 ifp->if_hwassist &= ~JME_CSUM_FEATURES;
1960 if (mask & IFCAP_RXCSUM) {
1963 ifp->if_capenable ^= IFCAP_RXCSUM;
1964 reg = CSR_READ_4(sc, JME_RXMAC);
1965 reg &= ~RXMAC_CSUM_ENB;
1966 if (ifp->if_capenable & IFCAP_RXCSUM)
1967 reg |= RXMAC_CSUM_ENB;
1968 CSR_WRITE_4(sc, JME_RXMAC, reg);
1971 if (mask & IFCAP_VLAN_HWTAGGING) {
1972 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
1976 if ((mask & IFCAP_TSO) && ifp->if_mtu < JME_TX_FIFO_SIZE) {
1977 ifp->if_capenable ^= IFCAP_TSO;
1978 if (ifp->if_capenable & IFCAP_TSO)
1979 ifp->if_hwassist |= CSUM_TSO;
1981 ifp->if_hwassist &= ~CSUM_TSO;
1984 if (mask & IFCAP_RSS)
1985 ifp->if_capenable ^= IFCAP_RSS;
1989 error = ether_ioctl(ifp, cmd, data);
1996 jme_mac_config(struct jme_softc *sc)
1998 struct mii_data *mii;
1999 uint32_t ghc, rxmac, txmac, txpause, gp1;
2000 int phyconf = JMPHY_CONF_DEFFIFO, hdx = 0;
2002 mii = device_get_softc(sc->jme_miibus);
2004 CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
2006 CSR_WRITE_4(sc, JME_GHC, 0);
2008 rxmac = CSR_READ_4(sc, JME_RXMAC);
2009 rxmac &= ~RXMAC_FC_ENB;
2010 txmac = CSR_READ_4(sc, JME_TXMAC);
2011 txmac &= ~(TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST);
2012 txpause = CSR_READ_4(sc, JME_TXPFC);
2013 txpause &= ~TXPFC_PAUSE_ENB;
2014 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
2015 ghc |= GHC_FULL_DUPLEX;
2016 rxmac &= ~RXMAC_COLL_DET_ENB;
2017 txmac &= ~(TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE |
2018 TXMAC_BACKOFF | TXMAC_CARRIER_EXT |
2021 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
2022 txpause |= TXPFC_PAUSE_ENB;
2023 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
2024 rxmac |= RXMAC_FC_ENB;
2026 /* Disable retry transmit timer/retry limit. */
2027 CSR_WRITE_4(sc, JME_TXTRHD, CSR_READ_4(sc, JME_TXTRHD) &
2028 ~(TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB));
2030 rxmac |= RXMAC_COLL_DET_ENB;
2031 txmac |= TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE | TXMAC_BACKOFF;
2032 /* Enable retry transmit timer/retry limit. */
2033 CSR_WRITE_4(sc, JME_TXTRHD, CSR_READ_4(sc, JME_TXTRHD) |
2034 TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB);
2038 * Reprogram Tx/Rx MACs with resolved speed/duplex.
2040 gp1 = CSR_READ_4(sc, JME_GPREG1);
2041 gp1 &= ~GPREG1_WA_HDX;
2043 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) == 0)
2046 switch (IFM_SUBTYPE(mii->mii_media_active)) {
2048 ghc |= GHC_SPEED_10 | sc->jme_clksrc;
2050 gp1 |= GPREG1_WA_HDX;
2054 ghc |= GHC_SPEED_100 | sc->jme_clksrc;
2056 gp1 |= GPREG1_WA_HDX;
2059 * Use extended FIFO depth to workaround CRC errors
2060 * emitted by chips before JMC250B
2062 phyconf = JMPHY_CONF_EXTFIFO;
2066 if (sc->jme_caps & JME_CAP_FASTETH)
2069 ghc |= GHC_SPEED_1000 | sc->jme_clksrc_1000;
2071 txmac |= TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST;
2077 CSR_WRITE_4(sc, JME_GHC, ghc);
2078 CSR_WRITE_4(sc, JME_RXMAC, rxmac);
2079 CSR_WRITE_4(sc, JME_TXMAC, txmac);
2080 CSR_WRITE_4(sc, JME_TXPFC, txpause);
2082 if (sc->jme_workaround & JME_WA_EXTFIFO) {
2083 jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
2084 JMPHY_CONF, phyconf);
2086 if (sc->jme_workaround & JME_WA_HDX)
2087 CSR_WRITE_4(sc, JME_GPREG1, gp1);
2093 struct jme_softc *sc = xsc;
2094 struct ifnet *ifp = &sc->arpcom.ac_if;
2098 ASSERT_SERIALIZED(&sc->jme_serialize);
2100 status = CSR_READ_4(sc, JME_INTR_REQ_STATUS);
2101 if (status == 0 || status == 0xFFFFFFFF)
2104 /* Disable interrupts. */
2105 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
2107 status = CSR_READ_4(sc, JME_INTR_STATUS);
2108 if ((status & JME_INTRS) == 0 || status == 0xFFFFFFFF)
2111 /* Reset PCC counter/timer and Ack interrupts. */
2112 status &= ~(INTR_TXQ_COMP | INTR_RXQ_COMP);
2114 if (status & (INTR_TXQ_COAL | INTR_TXQ_COAL_TO))
2115 status |= INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP;
2117 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2118 if (status & jme_rx_status[r].jme_coal) {
2119 status |= jme_rx_status[r].jme_coal |
2120 jme_rx_status[r].jme_comp;
2124 CSR_WRITE_4(sc, JME_INTR_STATUS, status);
2126 if (ifp->if_flags & IFF_RUNNING) {
2127 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
2129 if (status & (INTR_RXQ_COAL | INTR_RXQ_COAL_TO))
2130 jme_rx_intr(sc, status);
2132 if (status & INTR_RXQ_DESC_EMPTY) {
2134 * Notify hardware availability of new Rx buffers.
2135 * Reading RXCSR takes very long time under heavy
2136 * load so cache RXCSR value and writes the ORed
2137 * value with the kick command to the RXCSR. This
2138 * saves one register access cycle.
2140 CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr |
2141 RXCSR_RX_ENB | RXCSR_RXQ_START);
2144 if (status & (INTR_TXQ_COAL | INTR_TXQ_COAL_TO)) {
2145 lwkt_serialize_enter(&tdata->jme_tx_serialize);
2147 if (!ifq_is_empty(&ifp->if_snd))
2149 lwkt_serialize_exit(&tdata->jme_tx_serialize);
2153 /* Reenable interrupts. */
2154 CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
2158 jme_txeof(struct jme_txdata *tdata)
2160 struct ifnet *ifp = &tdata->jme_sc->arpcom.ac_if;
2163 cons = tdata->jme_tx_cons;
2164 if (cons == tdata->jme_tx_prod)
2168 * Go through our Tx list and free mbufs for those
2169 * frames which have been transmitted.
2171 while (cons != tdata->jme_tx_prod) {
2172 struct jme_txdesc *txd, *next_txd;
2173 uint32_t status, next_status;
2174 int next_cons, nsegs;
2176 txd = &tdata->jme_txdesc[cons];
2177 KASSERT(txd->tx_m != NULL,
2178 ("%s: freeing NULL mbuf!", __func__));
2180 status = le32toh(txd->tx_desc->flags);
2181 if ((status & JME_TD_OWN) == JME_TD_OWN)
2186 * This chip will always update the TX descriptor's
2187 * buflen field and this updating always happens
2188 * after clearing the OWN bit, so even if the OWN
2189 * bit is cleared by the chip, we still don't sure
2190 * about whether the buflen field has been updated
2191 * by the chip or not. To avoid this race, we wait
2192 * for the next TX descriptor's OWN bit to be cleared
2193 * by the chip before reusing this TX descriptor.
2196 JME_DESC_ADD(next_cons, txd->tx_ndesc, tdata->jme_tx_desc_cnt);
2197 next_txd = &tdata->jme_txdesc[next_cons];
2198 if (next_txd->tx_m == NULL)
2200 next_status = le32toh(next_txd->tx_desc->flags);
2201 if ((next_status & JME_TD_OWN) == JME_TD_OWN)
2204 if (status & (JME_TD_TMOUT | JME_TD_RETRY_EXP)) {
2208 if (status & JME_TD_COLLISION) {
2209 ifp->if_collisions +=
2210 le32toh(txd->tx_desc->buflen) &
2211 JME_TD_BUF_LEN_MASK;
2216 * Only the first descriptor of multi-descriptor
2217 * transmission is updated so driver have to skip entire
2218 * chained buffers for the transmiited frame. In other
2219 * words, JME_TD_OWN bit is valid only at the first
2220 * descriptor of a multi-descriptor transmission.
2222 for (nsegs = 0; nsegs < txd->tx_ndesc; nsegs++) {
2223 tdata->jme_tx_ring[cons].flags = 0;
2224 JME_DESC_INC(cons, tdata->jme_tx_desc_cnt);
2227 /* Reclaim transferred mbufs. */
2228 bus_dmamap_unload(tdata->jme_tx_tag, txd->tx_dmamap);
2231 tdata->jme_tx_cnt -= txd->tx_ndesc;
2232 KASSERT(tdata->jme_tx_cnt >= 0,
2233 ("%s: Active Tx desc counter was garbled", __func__));
2236 tdata->jme_tx_cons = cons;
2238 /* 1 for symbol TX descriptor */
2239 if (tdata->jme_tx_cnt <= JME_MAXTXSEGS + 1)
2242 if (tdata->jme_tx_cnt + JME_TXD_SPARE <=
2243 tdata->jme_tx_desc_cnt - JME_TXD_RSVD)
2244 ifp->if_flags &= ~IFF_OACTIVE;
2247 static __inline void
2248 jme_discard_rxbufs(struct jme_rxdata *rdata, int cons, int count)
2252 for (i = 0; i < count; ++i) {
2253 jme_setup_rxdesc(&rdata->jme_rxdesc[cons]);
2254 JME_DESC_INC(cons, rdata->jme_rx_desc_cnt);
2258 static __inline struct pktinfo *
2259 jme_pktinfo(struct pktinfo *pi, uint32_t flags)
2261 if (flags & JME_RD_IPV4)
2262 pi->pi_netisr = NETISR_IP;
2263 else if (flags & JME_RD_IPV6)
2264 pi->pi_netisr = NETISR_IPV6;
2269 pi->pi_l3proto = IPPROTO_UNKNOWN;
2271 if (flags & JME_RD_MORE_FRAG)
2272 pi->pi_flags |= PKTINFO_FLAG_FRAG;
2273 else if (flags & JME_RD_TCP)
2274 pi->pi_l3proto = IPPROTO_TCP;
2275 else if (flags & JME_RD_UDP)
2276 pi->pi_l3proto = IPPROTO_UDP;
2282 /* Receive a frame. */
2284 jme_rxpkt(struct jme_rxdata *rdata)
2286 struct ifnet *ifp = &rdata->jme_sc->arpcom.ac_if;
2287 struct jme_desc *desc;
2288 struct jme_rxdesc *rxd;
2289 struct mbuf *mp, *m;
2290 uint32_t flags, status, hash, hashinfo;
2291 int cons, count, nsegs;
2293 cons = rdata->jme_rx_cons;
2294 desc = &rdata->jme_rx_ring[cons];
2296 flags = le32toh(desc->flags);
2297 status = le32toh(desc->buflen);
2298 hash = le32toh(desc->addr_hi);
2299 hashinfo = le32toh(desc->addr_lo);
2300 nsegs = JME_RX_NSEGS(status);
2303 /* Skip the first descriptor. */
2304 JME_DESC_INC(cons, rdata->jme_rx_desc_cnt);
2307 * Clear the OWN bit of the following RX descriptors;
2308 * hardware will not clear the OWN bit except the first
2311 * Since the first RX descriptor is setup, i.e. OWN bit
2312 * on, before its followins RX descriptors, leaving the
2313 * OWN bit on the following RX descriptors will trick
2314 * the hardware into thinking that the following RX
2315 * descriptors are ready to be used too.
2317 for (count = 1; count < nsegs; count++,
2318 JME_DESC_INC(cons, rdata->jme_rx_desc_cnt))
2319 rdata->jme_rx_ring[cons].flags = 0;
2321 cons = rdata->jme_rx_cons;
2324 JME_RSS_DPRINTF(rdata->jme_sc, 15, "ring%d, flags 0x%08x, "
2325 "hash 0x%08x, hash info 0x%08x\n",
2326 rdata->jme_rx_idx, flags, hash, hashinfo);
2328 if (status & JME_RX_ERR_STAT) {
2330 jme_discard_rxbufs(rdata, cons, nsegs);
2331 #ifdef JME_SHOW_ERRORS
2332 if_printf(ifp, "%s : receive error = 0x%b\n",
2333 __func__, JME_RX_ERR(status), JME_RX_ERR_BITS);
2335 rdata->jme_rx_cons += nsegs;
2336 rdata->jme_rx_cons %= rdata->jme_rx_desc_cnt;
2340 rdata->jme_rxlen = JME_RX_BYTES(status) - JME_RX_PAD_BYTES;
2341 for (count = 0; count < nsegs; count++,
2342 JME_DESC_INC(cons, rdata->jme_rx_desc_cnt)) {
2343 rxd = &rdata->jme_rxdesc[cons];
2346 /* Add a new receive buffer to the ring. */
2347 if (jme_newbuf(rdata, rxd, 0) != 0) {
2350 jme_discard_rxbufs(rdata, cons, nsegs - count);
2351 if (rdata->jme_rxhead != NULL) {
2352 m_freem(rdata->jme_rxhead);
2353 JME_RXCHAIN_RESET(rdata);
2359 * Assume we've received a full sized frame.
2360 * Actual size is fixed when we encounter the end of
2361 * multi-segmented frame.
2363 mp->m_len = MCLBYTES;
2365 /* Chain received mbufs. */
2366 if (rdata->jme_rxhead == NULL) {
2367 rdata->jme_rxhead = mp;
2368 rdata->jme_rxtail = mp;
2371 * Receive processor can receive a maximum frame
2372 * size of 65535 bytes.
2374 rdata->jme_rxtail->m_next = mp;
2375 rdata->jme_rxtail = mp;
2378 if (count == nsegs - 1) {
2379 struct pktinfo pi0, *pi;
2381 /* Last desc. for this frame. */
2382 m = rdata->jme_rxhead;
2383 m->m_pkthdr.len = rdata->jme_rxlen;
2385 /* Set first mbuf size. */
2386 m->m_len = MCLBYTES - JME_RX_PAD_BYTES;
2387 /* Set last mbuf size. */
2388 mp->m_len = rdata->jme_rxlen -
2389 ((MCLBYTES - JME_RX_PAD_BYTES) +
2390 (MCLBYTES * (nsegs - 2)));
2392 m->m_len = rdata->jme_rxlen;
2394 m->m_pkthdr.rcvif = ifp;
2397 * Account for 10bytes auto padding which is used
2398 * to align IP header on 32bit boundary. Also note,
2399 * CRC bytes is automatically removed by the
2402 m->m_data += JME_RX_PAD_BYTES;
2404 /* Set checksum information. */
2405 if ((ifp->if_capenable & IFCAP_RXCSUM) &&
2406 (flags & JME_RD_IPV4)) {
2407 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
2408 if (flags & JME_RD_IPCSUM)
2409 m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
2410 if ((flags & JME_RD_MORE_FRAG) == 0 &&
2411 ((flags & (JME_RD_TCP | JME_RD_TCPCSUM)) ==
2412 (JME_RD_TCP | JME_RD_TCPCSUM) ||
2413 (flags & (JME_RD_UDP | JME_RD_UDPCSUM)) ==
2414 (JME_RD_UDP | JME_RD_UDPCSUM))) {
2415 m->m_pkthdr.csum_flags |=
2416 CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
2417 m->m_pkthdr.csum_data = 0xffff;
2421 /* Check for VLAN tagged packets. */
2422 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) &&
2423 (flags & JME_RD_VLAN_TAG)) {
2424 m->m_pkthdr.ether_vlantag =
2425 flags & JME_RD_VLAN_MASK;
2426 m->m_flags |= M_VLANTAG;
2431 if (ifp->if_capenable & IFCAP_RSS)
2432 pi = jme_pktinfo(&pi0, flags);
2437 (hashinfo & JME_RD_HASH_FN_MASK) ==
2438 JME_RD_HASH_FN_TOEPLITZ) {
2439 m->m_flags |= (M_HASH | M_CKHASH);
2440 m->m_pkthdr.hash = toeplitz_hash(hash);
2443 #ifdef JME_RSS_DEBUG
2445 JME_RSS_DPRINTF(rdata->jme_sc, 10,
2446 "isr %d flags %08x, l3 %d %s\n",
2447 pi->pi_netisr, pi->pi_flags,
2449 (m->m_flags & M_HASH) ? "hash" : "");
2454 ether_input_pkt(ifp, m, pi);
2456 /* Reset mbuf chains. */
2457 JME_RXCHAIN_RESET(rdata);
2458 #ifdef JME_RSS_DEBUG
2459 rdata->jme_rx_pkt++;
2464 rdata->jme_rx_cons += nsegs;
2465 rdata->jme_rx_cons %= rdata->jme_rx_desc_cnt;
2469 jme_rxeof(struct jme_rxdata *rdata, int count)
2471 struct jme_desc *desc;
2475 #ifdef IFPOLL_ENABLE
2476 if (count >= 0 && count-- == 0)
2479 desc = &rdata->jme_rx_ring[rdata->jme_rx_cons];
2480 if ((le32toh(desc->flags) & JME_RD_OWN) == JME_RD_OWN)
2482 if ((le32toh(desc->buflen) & JME_RD_VALID) == 0)
2486 * Check number of segments against received bytes.
2487 * Non-matching value would indicate that hardware
2488 * is still trying to update Rx descriptors. I'm not
2489 * sure whether this check is needed.
2491 nsegs = JME_RX_NSEGS(le32toh(desc->buflen));
2492 pktlen = JME_RX_BYTES(le32toh(desc->buflen));
2493 if (nsegs != howmany(pktlen, MCLBYTES)) {
2494 if_printf(&rdata->jme_sc->arpcom.ac_if,
2495 "RX fragment count(%d) and "
2496 "packet size(%d) mismach\n", nsegs, pktlen);
2502 * RSS hash and hash information may _not_ be set by the
2503 * hardware even if the OWN bit is cleared and VALID bit
2506 * If the RSS information is not delivered by the hardware
2507 * yet, we MUST NOT accept this packet, let alone reusing
2508 * its RX descriptor. If this packet was accepted and its
2509 * RX descriptor was reused before hardware delivering the
2510 * RSS information, the RX buffer's address would be trashed
2511 * by the RSS information delivered by the hardware.
2513 if (JME_ENABLE_HWRSS(rdata->jme_sc)) {
2514 struct jme_rxdesc *rxd;
2517 hashinfo = le32toh(desc->addr_lo);
2518 rxd = &rdata->jme_rxdesc[rdata->jme_rx_cons];
2521 * This test should be enough to detect the pending
2522 * RSS information delivery, given:
2523 * - If RSS hash is not calculated, the hashinfo
2524 * will be 0. Howvever, the lower 32bits of RX
2525 * buffers' physical address will never be 0.
2526 * (see jme_rxbuf_dma_filter)
2527 * - If RSS hash is calculated, the lowest 4 bits
2528 * of hashinfo will be set, while the RX buffers
2529 * are at least 2K aligned.
2531 if (hashinfo == JME_ADDR_LO(rxd->rx_paddr)) {
2532 #ifdef JME_SHOW_RSSWB
2533 if_printf(&rdata->jme_sc->arpcom.ac_if,
2534 "RSS is not written back yet\n");
2540 /* Received a frame. */
2548 struct jme_softc *sc = xsc;
2549 struct mii_data *mii = device_get_softc(sc->jme_miibus);
2551 lwkt_serialize_enter(&sc->jme_serialize);
2553 sc->jme_in_tick = TRUE;
2555 sc->jme_in_tick = FALSE;
2557 callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
2559 lwkt_serialize_exit(&sc->jme_serialize);
2563 jme_reset(struct jme_softc *sc)
2567 /* Make sure that TX and RX are stopped */
2572 CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
2576 * Hold reset bit before stop reset
2579 /* Disable TXMAC and TXOFL clock sources */
2580 CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
2581 /* Disable RXMAC clock source */
2582 val = CSR_READ_4(sc, JME_GPREG1);
2583 CSR_WRITE_4(sc, JME_GPREG1, val | GPREG1_DIS_RXMAC_CLKSRC);
2585 CSR_READ_4(sc, JME_GHC);
2588 CSR_WRITE_4(sc, JME_GHC, 0);
2590 CSR_READ_4(sc, JME_GHC);
2593 * Clear reset bit after stop reset
2596 /* Enable TXMAC and TXOFL clock sources */
2597 CSR_WRITE_4(sc, JME_GHC, GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC);
2598 /* Enable RXMAC clock source */
2599 val = CSR_READ_4(sc, JME_GPREG1);
2600 CSR_WRITE_4(sc, JME_GPREG1, val & ~GPREG1_DIS_RXMAC_CLKSRC);
2602 CSR_READ_4(sc, JME_GHC);
2604 /* Disable TXMAC and TXOFL clock sources */
2605 CSR_WRITE_4(sc, JME_GHC, 0);
2606 /* Disable RXMAC clock source */
2607 val = CSR_READ_4(sc, JME_GPREG1);
2608 CSR_WRITE_4(sc, JME_GPREG1, val | GPREG1_DIS_RXMAC_CLKSRC);
2610 CSR_READ_4(sc, JME_GHC);
2612 /* Enable TX and RX */
2613 val = CSR_READ_4(sc, JME_TXCSR);
2614 CSR_WRITE_4(sc, JME_TXCSR, val | TXCSR_TX_ENB);
2615 val = CSR_READ_4(sc, JME_RXCSR);
2616 CSR_WRITE_4(sc, JME_RXCSR, val | RXCSR_RX_ENB);
2618 CSR_READ_4(sc, JME_TXCSR);
2619 CSR_READ_4(sc, JME_RXCSR);
2621 /* Enable TXMAC and TXOFL clock sources */
2622 CSR_WRITE_4(sc, JME_GHC, GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC);
2623 /* Eisable RXMAC clock source */
2624 val = CSR_READ_4(sc, JME_GPREG1);
2625 CSR_WRITE_4(sc, JME_GPREG1, val & ~GPREG1_DIS_RXMAC_CLKSRC);
2627 CSR_READ_4(sc, JME_GHC);
2629 /* Stop TX and RX */
2637 struct jme_softc *sc = xsc;
2638 struct ifnet *ifp = &sc->arpcom.ac_if;
2639 struct mii_data *mii;
2640 uint8_t eaddr[ETHER_ADDR_LEN];
2645 ASSERT_IFNET_SERIALIZED_ALL(ifp);
2648 * Cancel any pending I/O.
2653 * Reset the chip to a known state.
2658 * Setup MSI/MSI-X vectors to interrupts mapping
2662 if (JME_ENABLE_HWRSS(sc))
2665 jme_disable_rss(sc);
2667 /* Init RX descriptors */
2668 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2669 error = jme_init_rx_ring(&sc->jme_cdata.jme_rx_data[r]);
2671 if_printf(ifp, "initialization failed: "
2672 "no memory for %dth RX ring.\n", r);
2678 /* Init TX descriptors */
2679 jme_init_tx_ring(&sc->jme_cdata.jme_tx_data);
2681 /* Initialize shadow status block. */
2684 /* Reprogram the station address. */
2685 bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN);
2686 CSR_WRITE_4(sc, JME_PAR0,
2687 eaddr[3] << 24 | eaddr[2] << 16 | eaddr[1] << 8 | eaddr[0]);
2688 CSR_WRITE_4(sc, JME_PAR1, eaddr[5] << 8 | eaddr[4]);
2691 * Configure Tx queue.
2692 * Tx priority queue weight value : 0
2693 * Tx FIFO threshold for processing next packet : 16QW
2694 * Maximum Tx DMA length : 512
2695 * Allow Tx DMA burst.
2697 sc->jme_txcsr = TXCSR_TXQ_N_SEL(TXCSR_TXQ0);
2698 sc->jme_txcsr |= TXCSR_TXQ_WEIGHT(TXCSR_TXQ_WEIGHT_MIN);
2699 sc->jme_txcsr |= TXCSR_FIFO_THRESH_16QW;
2700 sc->jme_txcsr |= sc->jme_tx_dma_size;
2701 sc->jme_txcsr |= TXCSR_DMA_BURST;
2702 CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr);
2704 /* Set Tx descriptor counter. */
2705 CSR_WRITE_4(sc, JME_TXQDC, sc->jme_cdata.jme_tx_data.jme_tx_desc_cnt);
2707 /* Set Tx ring address to the hardware. */
2708 paddr = sc->jme_cdata.jme_tx_data.jme_tx_ring_paddr;
2709 CSR_WRITE_4(sc, JME_TXDBA_HI, JME_ADDR_HI(paddr));
2710 CSR_WRITE_4(sc, JME_TXDBA_LO, JME_ADDR_LO(paddr));
2712 /* Configure TxMAC parameters. */
2713 reg = TXMAC_IFG1_DEFAULT | TXMAC_IFG2_DEFAULT | TXMAC_IFG_ENB;
2714 reg |= TXMAC_THRESH_1_PKT;
2715 reg |= TXMAC_CRC_ENB | TXMAC_PAD_ENB;
2716 CSR_WRITE_4(sc, JME_TXMAC, reg);
2719 * Configure Rx queue.
2720 * FIFO full threshold for transmitting Tx pause packet : 128T
2721 * FIFO threshold for processing next packet : 128QW
2723 * Max Rx DMA length : 128
2724 * Rx descriptor retry : 32
2725 * Rx descriptor retry time gap : 256ns
2726 * Don't receive runt/bad frame.
2728 sc->jme_rxcsr = RXCSR_FIFO_FTHRESH_128T;
2731 * Since Rx FIFO size is 4K bytes, receiving frames larger
2732 * than 4K bytes will suffer from Rx FIFO overruns. So
2733 * decrease FIFO threshold to reduce the FIFO overruns for
2734 * frames larger than 4000 bytes.
2735 * For best performance of standard MTU sized frames use
2736 * maximum allowable FIFO threshold, 128QW.
2738 if ((ifp->if_mtu + ETHER_HDR_LEN + EVL_ENCAPLEN + ETHER_CRC_LEN) >
2740 sc->jme_rxcsr |= RXCSR_FIFO_THRESH_16QW;
2742 sc->jme_rxcsr |= RXCSR_FIFO_THRESH_128QW;
2744 /* Improve PCI Express compatibility */
2745 sc->jme_rxcsr |= RXCSR_FIFO_THRESH_16QW;
2747 sc->jme_rxcsr |= sc->jme_rx_dma_size;
2748 sc->jme_rxcsr |= RXCSR_DESC_RT_CNT(RXCSR_DESC_RT_CNT_DEFAULT);
2749 sc->jme_rxcsr |= RXCSR_DESC_RT_GAP_256 & RXCSR_DESC_RT_GAP_MASK;
2750 /* XXX TODO DROP_BAD */
2752 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2753 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
2755 CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr | RXCSR_RXQ_N_SEL(r));
2757 /* Set Rx descriptor counter. */
2758 CSR_WRITE_4(sc, JME_RXQDC, rdata->jme_rx_desc_cnt);
2760 /* Set Rx ring address to the hardware. */
2761 paddr = rdata->jme_rx_ring_paddr;
2762 CSR_WRITE_4(sc, JME_RXDBA_HI, JME_ADDR_HI(paddr));
2763 CSR_WRITE_4(sc, JME_RXDBA_LO, JME_ADDR_LO(paddr));
2766 /* Clear receive filter. */
2767 CSR_WRITE_4(sc, JME_RXMAC, 0);
2769 /* Set up the receive filter. */
2774 * Disable all WOL bits as WOL can interfere normal Rx
2775 * operation. Also clear WOL detection status bits.
2777 reg = CSR_READ_4(sc, JME_PMCS);
2778 reg &= ~PMCS_WOL_ENB_MASK;
2779 CSR_WRITE_4(sc, JME_PMCS, reg);
2782 * Pad 10bytes right before received frame. This will greatly
2783 * help Rx performance on strict-alignment architectures as
2784 * it does not need to copy the frame to align the payload.
2786 reg = CSR_READ_4(sc, JME_RXMAC);
2787 reg |= RXMAC_PAD_10BYTES;
2789 if (ifp->if_capenable & IFCAP_RXCSUM)
2790 reg |= RXMAC_CSUM_ENB;
2791 CSR_WRITE_4(sc, JME_RXMAC, reg);
2793 /* Configure general purpose reg0 */
2794 reg = CSR_READ_4(sc, JME_GPREG0);
2795 reg &= ~GPREG0_PCC_UNIT_MASK;
2796 /* Set PCC timer resolution to micro-seconds unit. */
2797 reg |= GPREG0_PCC_UNIT_US;
2799 * Disable all shadow register posting as we have to read
2800 * JME_INTR_STATUS register in jme_intr. Also it seems
2801 * that it's hard to synchronize interrupt status between
2802 * hardware and software with shadow posting due to
2803 * requirements of bus_dmamap_sync(9).
2805 reg |= GPREG0_SH_POST_DW7_DIS | GPREG0_SH_POST_DW6_DIS |
2806 GPREG0_SH_POST_DW5_DIS | GPREG0_SH_POST_DW4_DIS |
2807 GPREG0_SH_POST_DW3_DIS | GPREG0_SH_POST_DW2_DIS |
2808 GPREG0_SH_POST_DW1_DIS | GPREG0_SH_POST_DW0_DIS;
2809 /* Disable posting of DW0. */
2810 reg &= ~GPREG0_POST_DW0_ENB;
2811 /* Clear PME message. */
2812 reg &= ~GPREG0_PME_ENB;
2813 /* Set PHY address. */
2814 reg &= ~GPREG0_PHY_ADDR_MASK;
2815 reg |= sc->jme_phyaddr;
2816 CSR_WRITE_4(sc, JME_GPREG0, reg);
2818 /* Configure Tx queue 0 packet completion coalescing. */
2819 jme_set_tx_coal(sc);
2821 /* Configure Rx queues packet completion coalescing. */
2822 jme_set_rx_coal(sc);
2824 /* Configure shadow status block but don't enable posting. */
2825 paddr = sc->jme_cdata.jme_ssb_block_paddr;
2826 CSR_WRITE_4(sc, JME_SHBASE_ADDR_HI, JME_ADDR_HI(paddr));
2827 CSR_WRITE_4(sc, JME_SHBASE_ADDR_LO, JME_ADDR_LO(paddr));
2829 /* Disable Timer 1 and Timer 2. */
2830 CSR_WRITE_4(sc, JME_TIMER1, 0);
2831 CSR_WRITE_4(sc, JME_TIMER2, 0);
2833 /* Configure retry transmit period, retry limit value. */
2834 CSR_WRITE_4(sc, JME_TXTRHD,
2835 ((TXTRHD_RT_PERIOD_DEFAULT << TXTRHD_RT_PERIOD_SHIFT) &
2836 TXTRHD_RT_PERIOD_MASK) |
2837 ((TXTRHD_RT_LIMIT_DEFAULT << TXTRHD_RT_LIMIT_SHIFT) &
2838 TXTRHD_RT_LIMIT_SHIFT));
2840 #ifdef IFPOLL_ENABLE
2841 if (!(ifp->if_flags & IFF_NPOLLING))
2843 /* Initialize the interrupt mask. */
2844 jme_enable_intr(sc);
2845 CSR_WRITE_4(sc, JME_INTR_STATUS, 0xFFFFFFFF);
2848 * Enabling Tx/Rx DMA engines and Rx queue processing is
2849 * done after detection of valid link in jme_miibus_statchg.
2851 sc->jme_has_link = FALSE;
2853 /* Set the current media. */
2854 mii = device_get_softc(sc->jme_miibus);
2857 callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
2859 ifp->if_flags |= IFF_RUNNING;
2860 ifp->if_flags &= ~IFF_OACTIVE;
2864 jme_stop(struct jme_softc *sc)
2866 struct ifnet *ifp = &sc->arpcom.ac_if;
2867 struct jme_txdata *tdata = &sc->jme_cdata.jme_tx_data;
2868 struct jme_txdesc *txd;
2869 struct jme_rxdesc *rxd;
2870 struct jme_rxdata *rdata;
2873 ASSERT_IFNET_SERIALIZED_ALL(ifp);
2876 * Mark the interface down and cancel the watchdog timer.
2878 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
2881 callout_stop(&sc->jme_tick_ch);
2882 sc->jme_has_link = FALSE;
2885 * Disable interrupts.
2887 jme_disable_intr(sc);
2888 CSR_WRITE_4(sc, JME_INTR_STATUS, 0xFFFFFFFF);
2890 /* Disable updating shadow status block. */
2891 CSR_WRITE_4(sc, JME_SHBASE_ADDR_LO,
2892 CSR_READ_4(sc, JME_SHBASE_ADDR_LO) & ~SHBASE_POST_ENB);
2894 /* Stop receiver, transmitter. */
2899 * Free partial finished RX segments
2901 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2902 rdata = &sc->jme_cdata.jme_rx_data[r];
2903 if (rdata->jme_rxhead != NULL)
2904 m_freem(rdata->jme_rxhead);
2905 JME_RXCHAIN_RESET(rdata);
2909 * Free RX and TX mbufs still in the queues.
2911 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2912 rdata = &sc->jme_cdata.jme_rx_data[r];
2913 for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
2914 rxd = &rdata->jme_rxdesc[i];
2915 if (rxd->rx_m != NULL) {
2916 bus_dmamap_unload(rdata->jme_rx_tag,
2923 for (i = 0; i < tdata->jme_tx_desc_cnt; i++) {
2924 txd = &tdata->jme_txdesc[i];
2925 if (txd->tx_m != NULL) {
2926 bus_dmamap_unload(tdata->jme_tx_tag, txd->tx_dmamap);
2935 jme_stop_tx(struct jme_softc *sc)
2940 reg = CSR_READ_4(sc, JME_TXCSR);
2941 if ((reg & TXCSR_TX_ENB) == 0)
2943 reg &= ~TXCSR_TX_ENB;
2944 CSR_WRITE_4(sc, JME_TXCSR, reg);
2945 for (i = JME_TIMEOUT; i > 0; i--) {
2947 if ((CSR_READ_4(sc, JME_TXCSR) & TXCSR_TX_ENB) == 0)
2951 device_printf(sc->jme_dev, "stopping transmitter timeout!\n");
2955 jme_stop_rx(struct jme_softc *sc)
2960 reg = CSR_READ_4(sc, JME_RXCSR);
2961 if ((reg & RXCSR_RX_ENB) == 0)
2963 reg &= ~RXCSR_RX_ENB;
2964 CSR_WRITE_4(sc, JME_RXCSR, reg);
2965 for (i = JME_TIMEOUT; i > 0; i--) {
2967 if ((CSR_READ_4(sc, JME_RXCSR) & RXCSR_RX_ENB) == 0)
2971 device_printf(sc->jme_dev, "stopping recevier timeout!\n");
2975 jme_init_tx_ring(struct jme_txdata *tdata)
2977 struct jme_txdesc *txd;
2980 tdata->jme_tx_prod = 0;
2981 tdata->jme_tx_cons = 0;
2982 tdata->jme_tx_cnt = 0;
2984 bzero(tdata->jme_tx_ring, JME_TX_RING_SIZE(tdata));
2985 for (i = 0; i < tdata->jme_tx_desc_cnt; i++) {
2986 txd = &tdata->jme_txdesc[i];
2988 txd->tx_desc = &tdata->jme_tx_ring[i];
2994 jme_init_ssb(struct jme_softc *sc)
2996 struct jme_chain_data *cd;
2998 cd = &sc->jme_cdata;
2999 bzero(cd->jme_ssb_block, JME_SSB_SIZE);
3003 jme_init_rx_ring(struct jme_rxdata *rdata)
3005 struct jme_rxdesc *rxd;
3008 KKASSERT(rdata->jme_rxhead == NULL &&
3009 rdata->jme_rxtail == NULL &&
3010 rdata->jme_rxlen == 0);
3011 rdata->jme_rx_cons = 0;
3013 bzero(rdata->jme_rx_ring, JME_RX_RING_SIZE(rdata));
3014 for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
3017 rxd = &rdata->jme_rxdesc[i];
3019 rxd->rx_desc = &rdata->jme_rx_ring[i];
3020 error = jme_newbuf(rdata, rxd, 1);
3028 jme_newbuf(struct jme_rxdata *rdata, struct jme_rxdesc *rxd, int init)
3031 bus_dma_segment_t segs;
3035 m = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
3039 * JMC250 has 64bit boundary alignment limitation so jme(4)
3040 * takes advantage of 10 bytes padding feature of hardware
3041 * in order not to copy entire frame to align IP header on
3044 m->m_len = m->m_pkthdr.len = MCLBYTES;
3046 error = bus_dmamap_load_mbuf_segment(rdata->jme_rx_tag,
3047 rdata->jme_rx_sparemap, m, &segs, 1, &nsegs,
3052 if_printf(&rdata->jme_sc->arpcom.ac_if,
3053 "can't load RX mbuf\n");
3058 if (rxd->rx_m != NULL) {
3059 bus_dmamap_sync(rdata->jme_rx_tag, rxd->rx_dmamap,
3060 BUS_DMASYNC_POSTREAD);
3061 bus_dmamap_unload(rdata->jme_rx_tag, rxd->rx_dmamap);
3063 map = rxd->rx_dmamap;
3064 rxd->rx_dmamap = rdata->jme_rx_sparemap;
3065 rdata->jme_rx_sparemap = map;
3067 rxd->rx_paddr = segs.ds_addr;
3069 jme_setup_rxdesc(rxd);
3074 jme_set_vlan(struct jme_softc *sc)
3076 struct ifnet *ifp = &sc->arpcom.ac_if;
3079 ASSERT_IFNET_SERIALIZED_ALL(ifp);
3081 reg = CSR_READ_4(sc, JME_RXMAC);
3082 reg &= ~RXMAC_VLAN_ENB;
3083 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
3084 reg |= RXMAC_VLAN_ENB;
3085 CSR_WRITE_4(sc, JME_RXMAC, reg);
3089 jme_set_filter(struct jme_softc *sc)
3091 struct ifnet *ifp = &sc->arpcom.ac_if;
3092 struct ifmultiaddr *ifma;
3097 ASSERT_IFNET_SERIALIZED_ALL(ifp);
3099 rxcfg = CSR_READ_4(sc, JME_RXMAC);
3100 rxcfg &= ~(RXMAC_BROADCAST | RXMAC_PROMISC | RXMAC_MULTICAST |
3104 * Always accept frames destined to our station address.
3105 * Always accept broadcast frames.
3107 rxcfg |= RXMAC_UNICAST | RXMAC_BROADCAST;
3109 if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) {
3110 if (ifp->if_flags & IFF_PROMISC)
3111 rxcfg |= RXMAC_PROMISC;
3112 if (ifp->if_flags & IFF_ALLMULTI)
3113 rxcfg |= RXMAC_ALLMULTI;
3114 CSR_WRITE_4(sc, JME_MAR0, 0xFFFFFFFF);
3115 CSR_WRITE_4(sc, JME_MAR1, 0xFFFFFFFF);
3116 CSR_WRITE_4(sc, JME_RXMAC, rxcfg);
3121 * Set up the multicast address filter by passing all multicast
3122 * addresses through a CRC generator, and then using the low-order
3123 * 6 bits as an index into the 64 bit multicast hash table. The
3124 * high order bits select the register, while the rest of the bits
3125 * select the bit within the register.
3127 rxcfg |= RXMAC_MULTICAST;
3128 bzero(mchash, sizeof(mchash));
3130 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
3131 if (ifma->ifma_addr->sa_family != AF_LINK)
3133 crc = ether_crc32_be(LLADDR((struct sockaddr_dl *)
3134 ifma->ifma_addr), ETHER_ADDR_LEN);
3136 /* Just want the 6 least significant bits. */
3139 /* Set the corresponding bit in the hash table. */
3140 mchash[crc >> 5] |= 1 << (crc & 0x1f);
3143 CSR_WRITE_4(sc, JME_MAR0, mchash[0]);
3144 CSR_WRITE_4(sc, JME_MAR1, mchash[1]);
3145 CSR_WRITE_4(sc, JME_RXMAC, rxcfg);
3149 jme_sysctl_tx_coal_to(SYSCTL_HANDLER_ARGS)
3151 struct jme_softc *sc = arg1;
3152 struct ifnet *ifp = &sc->arpcom.ac_if;
3155 ifnet_serialize_all(ifp);
3157 v = sc->jme_tx_coal_to;
3158 error = sysctl_handle_int(oidp, &v, 0, req);
3159 if (error || req->newptr == NULL)
3162 if (v < PCCTX_COAL_TO_MIN || v > PCCTX_COAL_TO_MAX) {
3167 if (v != sc->jme_tx_coal_to) {
3168 sc->jme_tx_coal_to = v;
3169 if (ifp->if_flags & IFF_RUNNING)
3170 jme_set_tx_coal(sc);
3173 ifnet_deserialize_all(ifp);
3178 jme_sysctl_tx_coal_pkt(SYSCTL_HANDLER_ARGS)
3180 struct jme_softc *sc = arg1;
3181 struct ifnet *ifp = &sc->arpcom.ac_if;
3184 ifnet_serialize_all(ifp);
3186 v = sc->jme_tx_coal_pkt;
3187 error = sysctl_handle_int(oidp, &v, 0, req);
3188 if (error || req->newptr == NULL)
3191 if (v < PCCTX_COAL_PKT_MIN || v > PCCTX_COAL_PKT_MAX) {
3196 if (v != sc->jme_tx_coal_pkt) {
3197 sc->jme_tx_coal_pkt = v;
3198 if (ifp->if_flags & IFF_RUNNING)
3199 jme_set_tx_coal(sc);
3202 ifnet_deserialize_all(ifp);
3207 jme_sysctl_rx_coal_to(SYSCTL_HANDLER_ARGS)
3209 struct jme_softc *sc = arg1;
3210 struct ifnet *ifp = &sc->arpcom.ac_if;
3213 ifnet_serialize_all(ifp);
3215 v = sc->jme_rx_coal_to;
3216 error = sysctl_handle_int(oidp, &v, 0, req);
3217 if (error || req->newptr == NULL)
3220 if (v < PCCRX_COAL_TO_MIN || v > PCCRX_COAL_TO_MAX) {
3225 if (v != sc->jme_rx_coal_to) {
3226 sc->jme_rx_coal_to = v;
3227 if (ifp->if_flags & IFF_RUNNING)
3228 jme_set_rx_coal(sc);
3231 ifnet_deserialize_all(ifp);
3236 jme_sysctl_rx_coal_pkt(SYSCTL_HANDLER_ARGS)
3238 struct jme_softc *sc = arg1;
3239 struct ifnet *ifp = &sc->arpcom.ac_if;
3242 ifnet_serialize_all(ifp);
3244 v = sc->jme_rx_coal_pkt;
3245 error = sysctl_handle_int(oidp, &v, 0, req);
3246 if (error || req->newptr == NULL)
3249 if (v < PCCRX_COAL_PKT_MIN || v > PCCRX_COAL_PKT_MAX) {
3254 if (v != sc->jme_rx_coal_pkt) {
3255 sc->jme_rx_coal_pkt = v;
3256 if (ifp->if_flags & IFF_RUNNING)
3257 jme_set_rx_coal(sc);
3260 ifnet_deserialize_all(ifp);
3265 jme_set_tx_coal(struct jme_softc *sc)
3269 reg = (sc->jme_tx_coal_to << PCCTX_COAL_TO_SHIFT) &
3271 reg |= (sc->jme_tx_coal_pkt << PCCTX_COAL_PKT_SHIFT) &
3272 PCCTX_COAL_PKT_MASK;
3273 reg |= PCCTX_COAL_TXQ0;
3274 CSR_WRITE_4(sc, JME_PCCTX, reg);
3278 jme_set_rx_coal(struct jme_softc *sc)
3283 reg = (sc->jme_rx_coal_to << PCCRX_COAL_TO_SHIFT) &
3285 reg |= (sc->jme_rx_coal_pkt << PCCRX_COAL_PKT_SHIFT) &
3286 PCCRX_COAL_PKT_MASK;
3287 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r)
3288 CSR_WRITE_4(sc, JME_PCCRX(r), reg);
3291 #ifdef IFPOLL_ENABLE
3294 jme_npoll_status(struct ifnet *ifp, int pollhz __unused)
3296 struct jme_softc *sc = ifp->if_softc;
3299 ASSERT_SERIALIZED(&sc->jme_serialize);
3301 status = CSR_READ_4(sc, JME_INTR_STATUS);
3302 if (status & INTR_RXQ_DESC_EMPTY) {
3303 CSR_WRITE_4(sc, JME_INTR_STATUS, status & INTR_RXQ_DESC_EMPTY);
3304 jme_rx_restart(sc, status);
3309 jme_npoll_rx(struct ifnet *ifp __unused, void *arg, int cycle)
3311 struct jme_rxdata *rdata = arg;
3313 ASSERT_SERIALIZED(&rdata->jme_rx_serialize);
3315 jme_rxeof(rdata, cycle);
3319 jme_npoll_tx(struct ifnet *ifp, void *arg, int cycle __unused)
3321 struct jme_txdata *tdata = arg;
3323 ASSERT_SERIALIZED(&tdata->jme_tx_serialize);
3326 if (!ifq_is_empty(&ifp->if_snd))
3331 jme_npoll(struct ifnet *ifp, struct ifpoll_info *info)
3333 struct jme_softc *sc = ifp->if_softc;
3335 ASSERT_IFNET_SERIALIZED_ALL(ifp);
3340 info->ifpi_status.status_func = jme_npoll_status;
3341 info->ifpi_status.serializer = &sc->jme_serialize;
3343 off = sc->jme_npoll_txoff;
3344 KKASSERT(off <= ncpus2);
3345 info->ifpi_tx[off].poll_func = jme_npoll_tx;
3346 info->ifpi_tx[off].arg = &sc->jme_cdata.jme_tx_data;
3347 info->ifpi_tx[off].serializer =
3348 &sc->jme_cdata.jme_tx_data.jme_tx_serialize;
3350 off = sc->jme_npoll_rxoff;
3351 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
3352 struct jme_rxdata *rdata =
3353 &sc->jme_cdata.jme_rx_data[i];
3356 info->ifpi_rx[idx].poll_func = jme_npoll_rx;
3357 info->ifpi_rx[idx].arg = rdata;
3358 info->ifpi_rx[idx].serializer =
3359 &rdata->jme_rx_serialize;
3362 if (ifp->if_flags & IFF_RUNNING)
3363 jme_disable_intr(sc);
3364 ifp->if_npoll_cpuid = sc->jme_npoll_txoff;
3366 if (ifp->if_flags & IFF_RUNNING)
3367 jme_enable_intr(sc);
3368 ifp->if_npoll_cpuid = -1;
3373 jme_sysctl_npoll_rxoff(SYSCTL_HANDLER_ARGS)
3375 struct jme_softc *sc = (void *)arg1;
3376 struct ifnet *ifp = &sc->arpcom.ac_if;
3379 off = sc->jme_npoll_rxoff;
3380 error = sysctl_handle_int(oidp, &off, 0, req);
3381 if (error || req->newptr == NULL)
3386 ifnet_serialize_all(ifp);
3387 if (off >= ncpus2 || off % sc->jme_cdata.jme_rx_ring_cnt != 0) {
3391 sc->jme_npoll_rxoff = off;
3393 ifnet_deserialize_all(ifp);
3399 jme_sysctl_npoll_txoff(SYSCTL_HANDLER_ARGS)
3401 struct jme_softc *sc = (void *)arg1;
3402 struct ifnet *ifp = &sc->arpcom.ac_if;
3405 off = sc->jme_npoll_txoff;
3406 error = sysctl_handle_int(oidp, &off, 0, req);
3407 if (error || req->newptr == NULL)
3412 ifnet_serialize_all(ifp);
3413 if (off >= ncpus2) {
3417 sc->jme_npoll_txoff = off;
3419 ifnet_deserialize_all(ifp);
3424 #endif /* IFPOLL_ENABLE */
3427 jme_rxring_dma_alloc(struct jme_rxdata *rdata)
3432 asize = roundup2(JME_RX_RING_SIZE(rdata), JME_RX_RING_ALIGN);
3433 error = bus_dmamem_coherent(rdata->jme_sc->jme_cdata.jme_ring_tag,
3434 JME_RX_RING_ALIGN, 0,
3435 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3436 asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
3438 device_printf(rdata->jme_sc->jme_dev,
3439 "could not allocate %dth Rx ring.\n", rdata->jme_rx_idx);
3442 rdata->jme_rx_ring_tag = dmem.dmem_tag;
3443 rdata->jme_rx_ring_map = dmem.dmem_map;
3444 rdata->jme_rx_ring = dmem.dmem_addr;
3445 rdata->jme_rx_ring_paddr = dmem.dmem_busaddr;
3451 jme_rxbuf_dma_filter(void *arg __unused, bus_addr_t paddr)
3453 if ((paddr & 0xffffffff) == 0) {
3455 * Don't allow lower 32bits of the RX buffer's
3456 * physical address to be 0, else it will break
3457 * hardware pending RSS information delivery
3458 * detection on RX path.
3466 jme_rxbuf_dma_alloc(struct jme_rxdata *rdata)
3471 lowaddr = BUS_SPACE_MAXADDR;
3472 if (JME_ENABLE_HWRSS(rdata->jme_sc)) {
3473 /* jme_rxbuf_dma_filter will be called */
3474 lowaddr = BUS_SPACE_MAXADDR_32BIT;
3477 /* Create tag for Rx buffers. */
3478 error = bus_dma_tag_create(
3479 rdata->jme_sc->jme_cdata.jme_buffer_tag,/* parent */
3480 JME_RX_BUF_ALIGN, 0, /* algnmnt, boundary */
3481 lowaddr, /* lowaddr */
3482 BUS_SPACE_MAXADDR, /* highaddr */
3483 jme_rxbuf_dma_filter, NULL, /* filter, filterarg */
3484 MCLBYTES, /* maxsize */
3486 MCLBYTES, /* maxsegsize */
3487 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | BUS_DMA_ALIGNED,/* flags */
3488 &rdata->jme_rx_tag);
3490 device_printf(rdata->jme_sc->jme_dev,
3491 "could not create %dth Rx DMA tag.\n", rdata->jme_rx_idx);
3495 /* Create DMA maps for Rx buffers. */
3496 error = bus_dmamap_create(rdata->jme_rx_tag, BUS_DMA_WAITOK,
3497 &rdata->jme_rx_sparemap);
3499 device_printf(rdata->jme_sc->jme_dev,
3500 "could not create %dth spare Rx dmamap.\n",
3502 bus_dma_tag_destroy(rdata->jme_rx_tag);
3503 rdata->jme_rx_tag = NULL;
3506 for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
3507 struct jme_rxdesc *rxd = &rdata->jme_rxdesc[i];
3509 error = bus_dmamap_create(rdata->jme_rx_tag, BUS_DMA_WAITOK,
3514 device_printf(rdata->jme_sc->jme_dev,
3515 "could not create %dth Rx dmamap "
3516 "for %dth RX ring.\n", i, rdata->jme_rx_idx);
3518 for (j = 0; j < i; ++j) {
3519 rxd = &rdata->jme_rxdesc[j];
3520 bus_dmamap_destroy(rdata->jme_rx_tag,
3523 bus_dmamap_destroy(rdata->jme_rx_tag,
3524 rdata->jme_rx_sparemap);
3525 bus_dma_tag_destroy(rdata->jme_rx_tag);
3526 rdata->jme_rx_tag = NULL;
3534 jme_rx_intr(struct jme_softc *sc, uint32_t status)
3538 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
3539 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
3541 if (status & rdata->jme_rx_coal) {
3542 lwkt_serialize_enter(&rdata->jme_rx_serialize);
3543 jme_rxeof(rdata, -1);
3544 lwkt_serialize_exit(&rdata->jme_rx_serialize);
3550 jme_enable_rss(struct jme_softc *sc)
3553 uint8_t key[RSSKEY_NREGS * RSSKEY_REGSIZE];
3556 KASSERT(sc->jme_cdata.jme_rx_ring_cnt == JME_NRXRING_2 ||
3557 sc->jme_cdata.jme_rx_ring_cnt == JME_NRXRING_4,
3558 ("%s: invalid # of RX rings (%d)",
3559 sc->arpcom.ac_if.if_xname, sc->jme_cdata.jme_rx_ring_cnt));
3561 rssc = RSSC_HASH_64_ENTRY;
3562 rssc |= RSSC_HASH_IPV4 | RSSC_HASH_IPV4_TCP;
3563 rssc |= sc->jme_cdata.jme_rx_ring_cnt >> 1;
3564 JME_RSS_DPRINTF(sc, 1, "rssc 0x%08x\n", rssc);
3565 CSR_WRITE_4(sc, JME_RSSC, rssc);
3567 toeplitz_get_key(key, sizeof(key));
3568 for (i = 0; i < RSSKEY_NREGS; ++i) {
3571 keyreg = RSSKEY_REGVAL(key, i);
3572 JME_RSS_DPRINTF(sc, 5, "keyreg%d 0x%08x\n", i, keyreg);
3574 CSR_WRITE_4(sc, RSSKEY_REG(i), keyreg);
3578 * Create redirect table in following fashion:
3579 * (hash & ring_cnt_mask) == rdr_table[(hash & rdr_table_mask)]
3582 for (i = 0; i < RSSTBL_REGSIZE; ++i) {
3585 q = i % sc->jme_cdata.jme_rx_ring_cnt;
3586 ind |= q << (i * 8);
3588 JME_RSS_DPRINTF(sc, 1, "ind 0x%08x\n", ind);
3590 for (i = 0; i < RSSTBL_NREGS; ++i)
3591 CSR_WRITE_4(sc, RSSTBL_REG(i), ind);
3595 jme_disable_rss(struct jme_softc *sc)
3597 CSR_WRITE_4(sc, JME_RSSC, RSSC_DIS_RSS);
3601 jme_serialize(struct ifnet *ifp, enum ifnet_serialize slz)
3603 struct jme_softc *sc = ifp->if_softc;
3605 ifnet_serialize_array_enter(sc->jme_serialize_arr,
3606 sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
3610 jme_deserialize(struct ifnet *ifp, enum ifnet_serialize slz)
3612 struct jme_softc *sc = ifp->if_softc;
3614 ifnet_serialize_array_exit(sc->jme_serialize_arr,
3615 sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
3619 jme_tryserialize(struct ifnet *ifp, enum ifnet_serialize slz)
3621 struct jme_softc *sc = ifp->if_softc;
3623 return ifnet_serialize_array_try(sc->jme_serialize_arr,
3624 sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
3630 jme_serialize_assert(struct ifnet *ifp, enum ifnet_serialize slz,
3631 boolean_t serialized)
3633 struct jme_softc *sc = ifp->if_softc;
3635 ifnet_serialize_array_assert(sc->jme_serialize_arr,
3636 sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE,
3640 #endif /* INVARIANTS */
3643 jme_msix_try_alloc(device_t dev)
3645 struct jme_softc *sc = device_get_softc(dev);
3646 struct jme_msix_data *msix;
3647 int error, i, r, msix_enable, msix_count;
3648 int offset, offset_def;
3650 msix_count = JME_MSIXCNT(sc->jme_cdata.jme_rx_ring_cnt);
3651 KKASSERT(msix_count <= JME_NMSIX);
3653 msix_enable = device_getenv_int(dev, "msix.enable", jme_msix_enable);
3656 * We leave the 1st MSI-X vector unused, so we
3657 * actually need msix_count + 1 MSI-X vectors.
3659 if (!msix_enable || pci_msix_count(dev) < (msix_count + 1))
3662 for (i = 0; i < msix_count; ++i)
3663 sc->jme_msix[i].jme_msix_rid = -1;
3668 * Setup status MSI-X
3671 msix = &sc->jme_msix[i++];
3672 msix->jme_msix_cpuid = 0;
3673 msix->jme_msix_arg = sc;
3674 msix->jme_msix_func = jme_msix_status;
3675 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
3676 msix->jme_msix_intrs |=
3677 sc->jme_cdata.jme_rx_data[r].jme_rx_empty;
3679 msix->jme_msix_serialize = &sc->jme_serialize;
3680 ksnprintf(msix->jme_msix_desc, sizeof(msix->jme_msix_desc), "%s sts",
3681 device_get_nameunit(dev));
3687 offset_def = device_get_unit(dev) % ncpus2;
3688 offset = device_getenv_int(dev, "msix.txoff", offset_def);
3689 if (offset >= ncpus2) {
3690 device_printf(dev, "invalid msix.txoff %d, use %d\n",
3691 offset, offset_def);
3692 offset = offset_def;
3695 msix = &sc->jme_msix[i++];
3696 msix->jme_msix_cpuid = offset;
3697 sc->jme_tx_cpuid = msix->jme_msix_cpuid;
3698 msix->jme_msix_arg = &sc->jme_cdata.jme_tx_data;
3699 msix->jme_msix_func = jme_msix_tx;
3700 msix->jme_msix_intrs = INTR_TXQ_COAL | INTR_TXQ_COAL_TO;
3701 msix->jme_msix_serialize = &sc->jme_cdata.jme_tx_data.jme_tx_serialize;
3702 ksnprintf(msix->jme_msix_desc, sizeof(msix->jme_msix_desc), "%s tx",
3703 device_get_nameunit(dev));
3709 if (sc->jme_cdata.jme_rx_ring_cnt == ncpus2) {
3712 offset_def = (sc->jme_cdata.jme_rx_ring_cnt *
3713 device_get_unit(dev)) % ncpus2;
3715 offset = device_getenv_int(dev, "msix.rxoff", offset_def);
3716 if (offset >= ncpus2 ||
3717 offset % sc->jme_cdata.jme_rx_ring_cnt != 0) {
3718 device_printf(dev, "invalid msix.rxoff %d, use %d\n",
3719 offset, offset_def);
3720 offset = offset_def;
3724 for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
3725 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
3727 msix = &sc->jme_msix[i++];
3728 msix->jme_msix_cpuid = r + offset;
3729 KKASSERT(msix->jme_msix_cpuid < ncpus2);
3730 msix->jme_msix_arg = rdata;
3731 msix->jme_msix_func = jme_msix_rx;
3732 msix->jme_msix_intrs = rdata->jme_rx_coal;
3733 msix->jme_msix_serialize = &rdata->jme_rx_serialize;
3734 ksnprintf(msix->jme_msix_desc, sizeof(msix->jme_msix_desc),
3735 "%s rx%d", device_get_nameunit(dev), r);
3738 KKASSERT(i == msix_count);
3740 error = pci_setup_msix(dev);
3744 /* Setup jme_msix_cnt early, so we could cleanup */
3745 sc->jme_msix_cnt = msix_count;
3747 for (i = 0; i < msix_count; ++i) {
3748 msix = &sc->jme_msix[i];
3750 msix->jme_msix_vector = i + 1;
3751 error = pci_alloc_msix_vector(dev, msix->jme_msix_vector,
3752 &msix->jme_msix_rid, msix->jme_msix_cpuid);
3756 msix->jme_msix_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
3757 &msix->jme_msix_rid, RF_ACTIVE);
3758 if (msix->jme_msix_res == NULL) {
3764 for (i = 0; i < JME_INTR_CNT; ++i) {
3765 uint32_t intr_mask = (1 << i);
3768 if ((JME_INTRS & intr_mask) == 0)
3771 for (x = 0; x < msix_count; ++x) {
3772 msix = &sc->jme_msix[x];
3773 if (msix->jme_msix_intrs & intr_mask) {
3776 reg = i / JME_MSINUM_FACTOR;
3777 KKASSERT(reg < JME_MSINUM_CNT);
3779 shift = (i % JME_MSINUM_FACTOR) * 4;
3781 sc->jme_msinum[reg] |=
3782 (msix->jme_msix_vector << shift);
3790 for (i = 0; i < JME_MSINUM_CNT; ++i) {
3791 device_printf(dev, "MSINUM%d: %#x\n", i,
3796 pci_enable_msix(dev);
3797 sc->jme_irq_type = PCI_INTR_TYPE_MSIX;
3805 jme_intr_alloc(device_t dev)
3807 struct jme_softc *sc = device_get_softc(dev);
3810 jme_msix_try_alloc(dev);
3812 if (sc->jme_irq_type != PCI_INTR_TYPE_MSIX) {
3813 sc->jme_irq_type = pci_alloc_1intr(dev, jme_msi_enable,
3814 &sc->jme_irq_rid, &irq_flags);
3816 sc->jme_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
3817 &sc->jme_irq_rid, irq_flags);
3818 if (sc->jme_irq_res == NULL) {
3819 device_printf(dev, "can't allocate irq\n");
3827 jme_msix_free(device_t dev)
3829 struct jme_softc *sc = device_get_softc(dev);
3832 KKASSERT(sc->jme_msix_cnt > 1);
3834 for (i = 0; i < sc->jme_msix_cnt; ++i) {
3835 struct jme_msix_data *msix = &sc->jme_msix[i];
3837 if (msix->jme_msix_res != NULL) {
3838 bus_release_resource(dev, SYS_RES_IRQ,
3839 msix->jme_msix_rid, msix->jme_msix_res);
3840 msix->jme_msix_res = NULL;
3842 if (msix->jme_msix_rid >= 0) {
3843 pci_release_msix_vector(dev, msix->jme_msix_rid);
3844 msix->jme_msix_rid = -1;
3847 pci_teardown_msix(dev);
3851 jme_intr_free(device_t dev)
3853 struct jme_softc *sc = device_get_softc(dev);
3855 if (sc->jme_irq_type != PCI_INTR_TYPE_MSIX) {
3856 if (sc->jme_irq_res != NULL) {
3857 bus_release_resource(dev, SYS_RES_IRQ, sc->jme_irq_rid,
3860 if (sc->jme_irq_type == PCI_INTR_TYPE_MSI)
3861 pci_release_msi(dev);
3868 jme_msix_tx(void *xtdata)
3870 struct jme_txdata *tdata = xtdata;
3871 struct jme_softc *sc = tdata->jme_sc;
3872 struct ifnet *ifp = &sc->arpcom.ac_if;
3874 ASSERT_SERIALIZED(&tdata->jme_tx_serialize);
3876 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, INTR_TXQ_COAL | INTR_TXQ_COAL_TO);
3878 CSR_WRITE_4(sc, JME_INTR_STATUS,
3879 INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP);
3881 if (ifp->if_flags & IFF_RUNNING) {
3883 if (!ifq_is_empty(&ifp->if_snd))
3887 CSR_WRITE_4(sc, JME_INTR_MASK_SET, INTR_TXQ_COAL | INTR_TXQ_COAL_TO);
3891 jme_msix_rx(void *xrdata)
3893 struct jme_rxdata *rdata = xrdata;
3894 struct jme_softc *sc = rdata->jme_sc;
3895 struct ifnet *ifp = &sc->arpcom.ac_if;
3897 ASSERT_SERIALIZED(&rdata->jme_rx_serialize);
3899 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, rdata->jme_rx_coal);
3901 CSR_WRITE_4(sc, JME_INTR_STATUS,
3902 rdata->jme_rx_coal | rdata->jme_rx_comp);
3904 if (ifp->if_flags & IFF_RUNNING)
3905 jme_rxeof(rdata, -1);
3907 CSR_WRITE_4(sc, JME_INTR_MASK_SET, rdata->jme_rx_coal);
3911 jme_msix_status(void *xsc)
3913 struct jme_softc *sc = xsc;
3914 struct ifnet *ifp = &sc->arpcom.ac_if;
3917 ASSERT_SERIALIZED(&sc->jme_serialize);
3919 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, INTR_RXQ_DESC_EMPTY);
3921 status = CSR_READ_4(sc, JME_INTR_STATUS);
3923 if (status & INTR_RXQ_DESC_EMPTY) {
3924 CSR_WRITE_4(sc, JME_INTR_STATUS, status & INTR_RXQ_DESC_EMPTY);
3925 if (ifp->if_flags & IFF_RUNNING)
3926 jme_rx_restart(sc, status);
3929 CSR_WRITE_4(sc, JME_INTR_MASK_SET, INTR_RXQ_DESC_EMPTY);
3933 jme_rx_restart(struct jme_softc *sc, uint32_t status)
3937 for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
3938 struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
3940 if (status & rdata->jme_rx_empty) {
3941 lwkt_serialize_enter(&rdata->jme_rx_serialize);
3942 jme_rxeof(rdata, -1);
3943 #ifdef JME_RSS_DEBUG
3944 rdata->jme_rx_emp++;
3946 lwkt_serialize_exit(&rdata->jme_rx_serialize);
3949 CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr | RXCSR_RX_ENB |
3954 jme_set_msinum(struct jme_softc *sc)
3958 for (i = 0; i < JME_MSINUM_CNT; ++i)
3959 CSR_WRITE_4(sc, JME_MSINUM(i), sc->jme_msinum[i]);
3963 jme_intr_setup(device_t dev)
3965 struct jme_softc *sc = device_get_softc(dev);
3966 struct ifnet *ifp = &sc->arpcom.ac_if;
3969 if (sc->jme_irq_type == PCI_INTR_TYPE_MSIX)
3970 return jme_msix_setup(dev);
3972 error = bus_setup_intr(dev, sc->jme_irq_res, INTR_MPSAFE,
3973 jme_intr, sc, &sc->jme_irq_handle, &sc->jme_serialize);
3975 device_printf(dev, "could not set up interrupt handler.\n");
3979 ifp->if_cpuid = rman_get_cpuid(sc->jme_irq_res);
3980 KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
3985 jme_intr_teardown(device_t dev)
3987 struct jme_softc *sc = device_get_softc(dev);
3989 if (sc->jme_irq_type == PCI_INTR_TYPE_MSIX)
3990 jme_msix_teardown(dev, sc->jme_msix_cnt);
3992 bus_teardown_intr(dev, sc->jme_irq_res, sc->jme_irq_handle);
3996 jme_msix_setup(device_t dev)
3998 struct jme_softc *sc = device_get_softc(dev);
3999 struct ifnet *ifp = &sc->arpcom.ac_if;
4002 for (x = 0; x < sc->jme_msix_cnt; ++x) {
4003 struct jme_msix_data *msix = &sc->jme_msix[x];
4006 error = bus_setup_intr_descr(dev, msix->jme_msix_res,
4007 INTR_MPSAFE, msix->jme_msix_func, msix->jme_msix_arg,
4008 &msix->jme_msix_handle, msix->jme_msix_serialize,
4009 msix->jme_msix_desc);
4011 device_printf(dev, "could not set up %s "
4012 "interrupt handler.\n", msix->jme_msix_desc);
4013 jme_msix_teardown(dev, x);
4017 ifp->if_cpuid = sc->jme_tx_cpuid;
4022 jme_msix_teardown(device_t dev, int msix_count)
4024 struct jme_softc *sc = device_get_softc(dev);
4027 for (x = 0; x < msix_count; ++x) {
4028 struct jme_msix_data *msix = &sc->jme_msix[x];
4030 bus_teardown_intr(dev, msix->jme_msix_res,
4031 msix->jme_msix_handle);
4036 jme_serialize_skipmain(struct jme_softc *sc)
4038 lwkt_serialize_array_enter(sc->jme_serialize_arr,
4039 sc->jme_serialize_cnt, 1);
4043 jme_deserialize_skipmain(struct jme_softc *sc)
4045 lwkt_serialize_array_exit(sc->jme_serialize_arr,
4046 sc->jme_serialize_cnt, 1);
4050 jme_enable_intr(struct jme_softc *sc)
4054 for (i = 0; i < sc->jme_serialize_cnt; ++i)
4055 lwkt_serialize_handler_enable(sc->jme_serialize_arr[i]);
4057 CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
4061 jme_disable_intr(struct jme_softc *sc)
4065 CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
4067 for (i = 0; i < sc->jme_serialize_cnt; ++i)
4068 lwkt_serialize_handler_disable(sc->jme_serialize_arr[i]);