xref: /dflybsd-src/sys/dev/netif/jme/if_jme.c (revision cccc39552d2e852294a08d6105220d12582cf4d9)
176fbb0b9SSepherosa Ziehau /*-
276fbb0b9SSepherosa Ziehau  * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org>
376fbb0b9SSepherosa Ziehau  * All rights reserved.
476fbb0b9SSepherosa Ziehau  *
576fbb0b9SSepherosa Ziehau  * Redistribution and use in source and binary forms, with or without
676fbb0b9SSepherosa Ziehau  * modification, are permitted provided that the following conditions
776fbb0b9SSepherosa Ziehau  * are met:
876fbb0b9SSepherosa Ziehau  * 1. Redistributions of source code must retain the above copyright
976fbb0b9SSepherosa Ziehau  *    notice unmodified, this list of conditions, and the following
1076fbb0b9SSepherosa Ziehau  *    disclaimer.
1176fbb0b9SSepherosa Ziehau  * 2. Redistributions in binary form must reproduce the above copyright
1276fbb0b9SSepherosa Ziehau  *    notice, this list of conditions and the following disclaimer in the
1376fbb0b9SSepherosa Ziehau  *    documentation and/or other materials provided with the distribution.
1476fbb0b9SSepherosa Ziehau  *
1576fbb0b9SSepherosa Ziehau  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1676fbb0b9SSepherosa Ziehau  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1776fbb0b9SSepherosa Ziehau  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1876fbb0b9SSepherosa Ziehau  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1976fbb0b9SSepherosa Ziehau  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2076fbb0b9SSepherosa Ziehau  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2176fbb0b9SSepherosa Ziehau  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2276fbb0b9SSepherosa Ziehau  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2376fbb0b9SSepherosa Ziehau  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2476fbb0b9SSepherosa Ziehau  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2576fbb0b9SSepherosa Ziehau  * SUCH DAMAGE.
2676fbb0b9SSepherosa Ziehau  *
2776fbb0b9SSepherosa Ziehau  * $FreeBSD: src/sys/dev/jme/if_jme.c,v 1.2 2008/07/18 04:20:48 yongari Exp $
2876fbb0b9SSepherosa Ziehau  */
2976fbb0b9SSepherosa Ziehau 
309de40864SSepherosa Ziehau #include "opt_polling.h"
3193bfe1b8SSepherosa Ziehau #include "opt_jme.h"
329de40864SSepherosa Ziehau 
3376fbb0b9SSepherosa Ziehau #include <sys/param.h>
3476fbb0b9SSepherosa Ziehau #include <sys/endian.h>
3576fbb0b9SSepherosa Ziehau #include <sys/kernel.h>
3676fbb0b9SSepherosa Ziehau #include <sys/bus.h>
3776fbb0b9SSepherosa Ziehau #include <sys/interrupt.h>
3876fbb0b9SSepherosa Ziehau #include <sys/malloc.h>
3976fbb0b9SSepherosa Ziehau #include <sys/proc.h>
4076fbb0b9SSepherosa Ziehau #include <sys/rman.h>
4176fbb0b9SSepherosa Ziehau #include <sys/serialize.h>
4231f0d5a2SSepherosa Ziehau #include <sys/serialize2.h>
4376fbb0b9SSepherosa Ziehau #include <sys/socket.h>
4476fbb0b9SSepherosa Ziehau #include <sys/sockio.h>
4576fbb0b9SSepherosa Ziehau #include <sys/sysctl.h>
4676fbb0b9SSepherosa Ziehau 
4776fbb0b9SSepherosa Ziehau #include <net/ethernet.h>
4876fbb0b9SSepherosa Ziehau #include <net/if.h>
4976fbb0b9SSepherosa Ziehau #include <net/bpf.h>
5076fbb0b9SSepherosa Ziehau #include <net/if_arp.h>
5176fbb0b9SSepherosa Ziehau #include <net/if_dl.h>
5276fbb0b9SSepherosa Ziehau #include <net/if_media.h>
5376fbb0b9SSepherosa Ziehau #include <net/ifq_var.h>
5424dd1705SSepherosa Ziehau #include <net/toeplitz.h>
55a6acc6e2SSepherosa Ziehau #include <net/toeplitz2.h>
5676fbb0b9SSepherosa Ziehau #include <net/vlan/if_vlan_var.h>
5776fbb0b9SSepherosa Ziehau #include <net/vlan/if_vlan_ether.h>
5876fbb0b9SSepherosa Ziehau 
59a6acc6e2SSepherosa Ziehau #include <netinet/in.h>
60a6acc6e2SSepherosa Ziehau 
6176fbb0b9SSepherosa Ziehau #include <dev/netif/mii_layer/miivar.h>
62dbe37f03SSepherosa Ziehau #include <dev/netif/mii_layer/jmphyreg.h>
6376fbb0b9SSepherosa Ziehau 
6476fbb0b9SSepherosa Ziehau #include <bus/pci/pcireg.h>
6576fbb0b9SSepherosa Ziehau #include <bus/pci/pcivar.h>
6676fbb0b9SSepherosa Ziehau #include <bus/pci/pcidevs.h>
6776fbb0b9SSepherosa Ziehau 
6808c76ecfSSepherosa Ziehau #include <dev/netif/jme/if_jmereg.h>
6908c76ecfSSepherosa Ziehau #include <dev/netif/jme/if_jmevar.h>
7076fbb0b9SSepherosa Ziehau 
7176fbb0b9SSepherosa Ziehau #include "miibus_if.h"
7276fbb0b9SSepherosa Ziehau 
7329890f78SSepherosa Ziehau #define JME_TX_SERIALIZE	1
7429890f78SSepherosa Ziehau #define JME_RX_SERIALIZE	2
7529890f78SSepherosa Ziehau 
7676fbb0b9SSepherosa Ziehau #define	JME_CSUM_FEATURES	(CSUM_IP | CSUM_TCP | CSUM_UDP)
7776fbb0b9SSepherosa Ziehau 
78760c056cSSepherosa Ziehau #ifdef JME_RSS_DEBUG
79760c056cSSepherosa Ziehau #define JME_RSS_DPRINTF(sc, lvl, fmt, ...) \
80760c056cSSepherosa Ziehau do { \
8166f75939SSepherosa Ziehau 	if ((sc)->jme_rss_debug >= (lvl)) \
82760c056cSSepherosa Ziehau 		if_printf(&(sc)->arpcom.ac_if, fmt, __VA_ARGS__); \
83760c056cSSepherosa Ziehau } while (0)
84760c056cSSepherosa Ziehau #else	/* !JME_RSS_DEBUG */
85760c056cSSepherosa Ziehau #define JME_RSS_DPRINTF(sc, lvl, fmt, ...)	((void)0)
86760c056cSSepherosa Ziehau #endif	/* JME_RSS_DEBUG */
87760c056cSSepherosa Ziehau 
8876fbb0b9SSepherosa Ziehau static int	jme_probe(device_t);
8976fbb0b9SSepherosa Ziehau static int	jme_attach(device_t);
9076fbb0b9SSepherosa Ziehau static int	jme_detach(device_t);
9176fbb0b9SSepherosa Ziehau static int	jme_shutdown(device_t);
9276fbb0b9SSepherosa Ziehau static int	jme_suspend(device_t);
9376fbb0b9SSepherosa Ziehau static int	jme_resume(device_t);
9476fbb0b9SSepherosa Ziehau 
9576fbb0b9SSepherosa Ziehau static int	jme_miibus_readreg(device_t, int, int);
9676fbb0b9SSepherosa Ziehau static int	jme_miibus_writereg(device_t, int, int, int);
9776fbb0b9SSepherosa Ziehau static void	jme_miibus_statchg(device_t);
9876fbb0b9SSepherosa Ziehau 
9976fbb0b9SSepherosa Ziehau static void	jme_init(void *);
10076fbb0b9SSepherosa Ziehau static int	jme_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
10176fbb0b9SSepherosa Ziehau static void	jme_start(struct ifnet *);
10276fbb0b9SSepherosa Ziehau static void	jme_watchdog(struct ifnet *);
10376fbb0b9SSepherosa Ziehau static void	jme_mediastatus(struct ifnet *, struct ifmediareq *);
10476fbb0b9SSepherosa Ziehau static int	jme_mediachange(struct ifnet *);
1059de40864SSepherosa Ziehau #ifdef DEVICE_POLLING
1069de40864SSepherosa Ziehau static void	jme_poll(struct ifnet *, enum poll_cmd, int);
1079de40864SSepherosa Ziehau #endif
10831f0d5a2SSepherosa Ziehau static void	jme_serialize(struct ifnet *, enum ifnet_serialize);
10931f0d5a2SSepherosa Ziehau static void	jme_deserialize(struct ifnet *, enum ifnet_serialize);
11031f0d5a2SSepherosa Ziehau static int	jme_tryserialize(struct ifnet *, enum ifnet_serialize);
11131f0d5a2SSepherosa Ziehau #ifdef INVARIANTS
11231f0d5a2SSepherosa Ziehau static void	jme_serialize_assert(struct ifnet *, enum ifnet_serialize,
11331f0d5a2SSepherosa Ziehau 		    boolean_t);
11431f0d5a2SSepherosa Ziehau #endif
11576fbb0b9SSepherosa Ziehau 
11676fbb0b9SSepherosa Ziehau static void	jme_intr(void *);
11758880b0dSSepherosa Ziehau static void	jme_msix_tx(void *);
11858880b0dSSepherosa Ziehau static void	jme_msix_rx(void *);
11976fbb0b9SSepherosa Ziehau static void	jme_txeof(struct jme_softc *);
120dea2452aSSepherosa Ziehau static void	jme_rxeof(struct jme_rxdata *, int);
1214447c752SSepherosa Ziehau static void	jme_rx_intr(struct jme_softc *, uint32_t);
12276fbb0b9SSepherosa Ziehau 
12358880b0dSSepherosa Ziehau static int	jme_msix_setup(device_t);
12458880b0dSSepherosa Ziehau static void	jme_msix_teardown(device_t, int);
12558880b0dSSepherosa Ziehau static int	jme_intr_setup(device_t);
12658880b0dSSepherosa Ziehau static void	jme_intr_teardown(device_t);
12758880b0dSSepherosa Ziehau static void	jme_msix_try_alloc(device_t);
12858880b0dSSepherosa Ziehau static void	jme_msix_free(device_t);
12958880b0dSSepherosa Ziehau static int	jme_intr_alloc(device_t);
13058880b0dSSepherosa Ziehau static void	jme_intr_free(device_t);
13176fbb0b9SSepherosa Ziehau static int	jme_dma_alloc(struct jme_softc *);
1320b3414d9SSepherosa Ziehau static void	jme_dma_free(struct jme_softc *);
133dea2452aSSepherosa Ziehau static int	jme_init_rx_ring(struct jme_rxdata *);
13476fbb0b9SSepherosa Ziehau static void	jme_init_tx_ring(struct jme_softc *);
13576fbb0b9SSepherosa Ziehau static void	jme_init_ssb(struct jme_softc *);
136dea2452aSSepherosa Ziehau static int	jme_newbuf(struct jme_rxdata *, struct jme_rxdesc *, int);
13776fbb0b9SSepherosa Ziehau static int	jme_encap(struct jme_softc *, struct mbuf **);
138dea2452aSSepherosa Ziehau static void	jme_rxpkt(struct jme_rxdata *);
139dea2452aSSepherosa Ziehau static int	jme_rxring_dma_alloc(struct jme_rxdata *);
140dea2452aSSepherosa Ziehau static int	jme_rxbuf_dma_alloc(struct jme_rxdata *);
141064b75edSSepherosa Ziehau static int	jme_rxbuf_dma_filter(void *, bus_addr_t);
14276fbb0b9SSepherosa Ziehau 
14376fbb0b9SSepherosa Ziehau static void	jme_tick(void *);
14476fbb0b9SSepherosa Ziehau static void	jme_stop(struct jme_softc *);
14576fbb0b9SSepherosa Ziehau static void	jme_reset(struct jme_softc *);
14658880b0dSSepherosa Ziehau static void	jme_set_msinum(struct jme_softc *);
14776fbb0b9SSepherosa Ziehau static void	jme_set_vlan(struct jme_softc *);
14876fbb0b9SSepherosa Ziehau static void	jme_set_filter(struct jme_softc *);
14976fbb0b9SSepherosa Ziehau static void	jme_stop_tx(struct jme_softc *);
15076fbb0b9SSepherosa Ziehau static void	jme_stop_rx(struct jme_softc *);
15176fbb0b9SSepherosa Ziehau static void	jme_mac_config(struct jme_softc *);
15276fbb0b9SSepherosa Ziehau static void	jme_reg_macaddr(struct jme_softc *, uint8_t[]);
15376fbb0b9SSepherosa Ziehau static int	jme_eeprom_macaddr(struct jme_softc *, uint8_t[]);
15476fbb0b9SSepherosa Ziehau static int	jme_eeprom_read_byte(struct jme_softc *, uint8_t, uint8_t *);
15576fbb0b9SSepherosa Ziehau #ifdef notyet
15676fbb0b9SSepherosa Ziehau static void	jme_setwol(struct jme_softc *);
15776fbb0b9SSepherosa Ziehau static void	jme_setlinkspeed(struct jme_softc *);
15876fbb0b9SSepherosa Ziehau #endif
1592870abc4SSepherosa Ziehau static void	jme_set_tx_coal(struct jme_softc *);
1602870abc4SSepherosa Ziehau static void	jme_set_rx_coal(struct jme_softc *);
161760c056cSSepherosa Ziehau static void	jme_enable_rss(struct jme_softc *);
162760c056cSSepherosa Ziehau static void	jme_disable_rss(struct jme_softc *);
163*cccc3955SSepherosa Ziehau static void	jme_serialize_skipmain(struct jme_softc *);
164*cccc3955SSepherosa Ziehau static void	jme_deserialize_skipmain(struct jme_softc *);
16576fbb0b9SSepherosa Ziehau 
16676fbb0b9SSepherosa Ziehau static void	jme_sysctl_node(struct jme_softc *);
1672870abc4SSepherosa Ziehau static int	jme_sysctl_tx_coal_to(SYSCTL_HANDLER_ARGS);
1682870abc4SSepherosa Ziehau static int	jme_sysctl_tx_coal_pkt(SYSCTL_HANDLER_ARGS);
1692870abc4SSepherosa Ziehau static int	jme_sysctl_rx_coal_to(SYSCTL_HANDLER_ARGS);
1702870abc4SSepherosa Ziehau static int	jme_sysctl_rx_coal_pkt(SYSCTL_HANDLER_ARGS);
17176fbb0b9SSepherosa Ziehau 
17276fbb0b9SSepherosa Ziehau /*
17376fbb0b9SSepherosa Ziehau  * Devices supported by this driver.
17476fbb0b9SSepherosa Ziehau  */
17576fbb0b9SSepherosa Ziehau static const struct jme_dev {
17676fbb0b9SSepherosa Ziehau 	uint16_t	jme_vendorid;
17776fbb0b9SSepherosa Ziehau 	uint16_t	jme_deviceid;
1783a5f3f36SSepherosa Ziehau 	uint32_t	jme_caps;
17976fbb0b9SSepherosa Ziehau 	const char	*jme_name;
18076fbb0b9SSepherosa Ziehau } jme_devs[] = {
18144e8c66cSSepherosa Ziehau 	{ PCI_VENDOR_JMICRON, PCI_PRODUCT_JMICRON_JMC250,
1823a5f3f36SSepherosa Ziehau 	    JME_CAP_JUMBO,
18376fbb0b9SSepherosa Ziehau 	    "JMicron Inc, JMC250 Gigabit Ethernet" },
18444e8c66cSSepherosa Ziehau 	{ PCI_VENDOR_JMICRON, PCI_PRODUCT_JMICRON_JMC260,
1853a5f3f36SSepherosa Ziehau 	    JME_CAP_FASTETH,
18676fbb0b9SSepherosa Ziehau 	    "JMicron Inc, JMC260 Fast Ethernet" },
1873a5f3f36SSepherosa Ziehau 	{ 0, 0, 0, NULL }
18876fbb0b9SSepherosa Ziehau };
18976fbb0b9SSepherosa Ziehau 
19076fbb0b9SSepherosa Ziehau static device_method_t jme_methods[] = {
19176fbb0b9SSepherosa Ziehau 	/* Device interface. */
19276fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_probe,		jme_probe),
19376fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_attach,	jme_attach),
19476fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_detach,	jme_detach),
19576fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_shutdown,	jme_shutdown),
19676fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_suspend,	jme_suspend),
19776fbb0b9SSepherosa Ziehau 	DEVMETHOD(device_resume,	jme_resume),
19876fbb0b9SSepherosa Ziehau 
19976fbb0b9SSepherosa Ziehau 	/* Bus interface. */
20076fbb0b9SSepherosa Ziehau 	DEVMETHOD(bus_print_child,	bus_generic_print_child),
20176fbb0b9SSepherosa Ziehau 	DEVMETHOD(bus_driver_added,	bus_generic_driver_added),
20276fbb0b9SSepherosa Ziehau 
20376fbb0b9SSepherosa Ziehau 	/* MII interface. */
20476fbb0b9SSepherosa Ziehau 	DEVMETHOD(miibus_readreg,	jme_miibus_readreg),
20576fbb0b9SSepherosa Ziehau 	DEVMETHOD(miibus_writereg,	jme_miibus_writereg),
20676fbb0b9SSepherosa Ziehau 	DEVMETHOD(miibus_statchg,	jme_miibus_statchg),
20776fbb0b9SSepherosa Ziehau 
20876fbb0b9SSepherosa Ziehau 	{ NULL, NULL }
20976fbb0b9SSepherosa Ziehau };
21076fbb0b9SSepherosa Ziehau 
21176fbb0b9SSepherosa Ziehau static driver_t jme_driver = {
21276fbb0b9SSepherosa Ziehau 	"jme",
21376fbb0b9SSepherosa Ziehau 	jme_methods,
21476fbb0b9SSepherosa Ziehau 	sizeof(struct jme_softc)
21576fbb0b9SSepherosa Ziehau };
21676fbb0b9SSepherosa Ziehau 
21776fbb0b9SSepherosa Ziehau static devclass_t jme_devclass;
21876fbb0b9SSepherosa Ziehau 
21976fbb0b9SSepherosa Ziehau DECLARE_DUMMY_MODULE(if_jme);
22076fbb0b9SSepherosa Ziehau MODULE_DEPEND(if_jme, miibus, 1, 1, 1);
221aa2b9d05SSascha Wildner DRIVER_MODULE(if_jme, pci, jme_driver, jme_devclass, NULL, NULL);
222aa2b9d05SSascha Wildner DRIVER_MODULE(miibus, jme, miibus_driver, miibus_devclass, NULL, NULL);
22376fbb0b9SSepherosa Ziehau 
2244447c752SSepherosa Ziehau static const struct {
2254447c752SSepherosa Ziehau 	uint32_t	jme_coal;
2264447c752SSepherosa Ziehau 	uint32_t	jme_comp;
22758880b0dSSepherosa Ziehau 	uint32_t	jme_empty;
2284447c752SSepherosa Ziehau } jme_rx_status[JME_NRXRING_MAX] = {
22958880b0dSSepherosa Ziehau 	{ INTR_RXQ0_COAL | INTR_RXQ0_COAL_TO, INTR_RXQ0_COMP,
23058880b0dSSepherosa Ziehau 	  INTR_RXQ0_DESC_EMPTY },
23158880b0dSSepherosa Ziehau 	{ INTR_RXQ1_COAL | INTR_RXQ1_COAL_TO, INTR_RXQ1_COMP,
23258880b0dSSepherosa Ziehau 	  INTR_RXQ1_DESC_EMPTY },
23358880b0dSSepherosa Ziehau 	{ INTR_RXQ2_COAL | INTR_RXQ2_COAL_TO, INTR_RXQ2_COMP,
23458880b0dSSepherosa Ziehau 	  INTR_RXQ2_DESC_EMPTY },
23558880b0dSSepherosa Ziehau 	{ INTR_RXQ3_COAL | INTR_RXQ3_COAL_TO, INTR_RXQ3_COMP,
23658880b0dSSepherosa Ziehau 	  INTR_RXQ3_DESC_EMPTY }
2374447c752SSepherosa Ziehau };
2384447c752SSepherosa Ziehau 
23969325526SSepherosa Ziehau static int	jme_rx_desc_count = JME_RX_DESC_CNT_DEF;
24069325526SSepherosa Ziehau static int	jme_tx_desc_count = JME_TX_DESC_CNT_DEF;
2416afef6abSSepherosa Ziehau static int	jme_rx_ring_count = 0;
2423eba890aSSepherosa Ziehau static int	jme_msi_enable = 1;
24358880b0dSSepherosa Ziehau static int	jme_msix_enable = 1;
24483b03786SSepherosa Ziehau 
24583b03786SSepherosa Ziehau TUNABLE_INT("hw.jme.rx_desc_count", &jme_rx_desc_count);
24683b03786SSepherosa Ziehau TUNABLE_INT("hw.jme.tx_desc_count", &jme_tx_desc_count);
247413d06bbSSepherosa Ziehau TUNABLE_INT("hw.jme.rx_ring_count", &jme_rx_ring_count);
2483eba890aSSepherosa Ziehau TUNABLE_INT("hw.jme.msi.enable", &jme_msi_enable);
24958880b0dSSepherosa Ziehau TUNABLE_INT("hw.jme.msix.enable", &jme_msix_enable);
25083b03786SSepherosa Ziehau 
251fd2a6d2cSSepherosa Ziehau static __inline void
252fd2a6d2cSSepherosa Ziehau jme_setup_rxdesc(struct jme_rxdesc *rxd)
253fd2a6d2cSSepherosa Ziehau {
254fd2a6d2cSSepherosa Ziehau 	struct jme_desc *desc;
255fd2a6d2cSSepherosa Ziehau 
256fd2a6d2cSSepherosa Ziehau 	desc = rxd->rx_desc;
257fd2a6d2cSSepherosa Ziehau 	desc->buflen = htole32(MCLBYTES);
258fd2a6d2cSSepherosa Ziehau 	desc->addr_lo = htole32(JME_ADDR_LO(rxd->rx_paddr));
259fd2a6d2cSSepherosa Ziehau 	desc->addr_hi = htole32(JME_ADDR_HI(rxd->rx_paddr));
260fd2a6d2cSSepherosa Ziehau 	desc->flags = htole32(JME_RD_OWN | JME_RD_INTR | JME_RD_64BIT);
261fd2a6d2cSSepherosa Ziehau }
262fd2a6d2cSSepherosa Ziehau 
26376fbb0b9SSepherosa Ziehau /*
26476fbb0b9SSepherosa Ziehau  *	Read a PHY register on the MII of the JMC250.
26576fbb0b9SSepherosa Ziehau  */
26676fbb0b9SSepherosa Ziehau static int
26776fbb0b9SSepherosa Ziehau jme_miibus_readreg(device_t dev, int phy, int reg)
26876fbb0b9SSepherosa Ziehau {
26976fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
27076fbb0b9SSepherosa Ziehau 	uint32_t val;
27176fbb0b9SSepherosa Ziehau 	int i;
27276fbb0b9SSepherosa Ziehau 
27376fbb0b9SSepherosa Ziehau 	/* For FPGA version, PHY address 0 should be ignored. */
274ec7e787bSSepherosa Ziehau 	if (sc->jme_caps & JME_CAP_FPGA) {
27576fbb0b9SSepherosa Ziehau 		if (phy == 0)
27676fbb0b9SSepherosa Ziehau 			return (0);
27776fbb0b9SSepherosa Ziehau 	} else {
27876fbb0b9SSepherosa Ziehau 		if (sc->jme_phyaddr != phy)
27976fbb0b9SSepherosa Ziehau 			return (0);
28076fbb0b9SSepherosa Ziehau 	}
28176fbb0b9SSepherosa Ziehau 
28276fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SMI, SMI_OP_READ | SMI_OP_EXECUTE |
28376fbb0b9SSepherosa Ziehau 	    SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg));
28476fbb0b9SSepherosa Ziehau 
28576fbb0b9SSepherosa Ziehau 	for (i = JME_PHY_TIMEOUT; i > 0; i--) {
28676fbb0b9SSepherosa Ziehau 		DELAY(1);
28776fbb0b9SSepherosa Ziehau 		if (((val = CSR_READ_4(sc, JME_SMI)) & SMI_OP_EXECUTE) == 0)
28876fbb0b9SSepherosa Ziehau 			break;
28976fbb0b9SSepherosa Ziehau 	}
29076fbb0b9SSepherosa Ziehau 	if (i == 0) {
29176fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "phy read timeout: "
29276fbb0b9SSepherosa Ziehau 			      "phy %d, reg %d\n", phy, reg);
29376fbb0b9SSepherosa Ziehau 		return (0);
29476fbb0b9SSepherosa Ziehau 	}
29576fbb0b9SSepherosa Ziehau 
29676fbb0b9SSepherosa Ziehau 	return ((val & SMI_DATA_MASK) >> SMI_DATA_SHIFT);
29776fbb0b9SSepherosa Ziehau }
29876fbb0b9SSepherosa Ziehau 
29976fbb0b9SSepherosa Ziehau /*
30076fbb0b9SSepherosa Ziehau  *	Write a PHY register on the MII of the JMC250.
30176fbb0b9SSepherosa Ziehau  */
30276fbb0b9SSepherosa Ziehau static int
30376fbb0b9SSepherosa Ziehau jme_miibus_writereg(device_t dev, int phy, int reg, int val)
30476fbb0b9SSepherosa Ziehau {
30576fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
30676fbb0b9SSepherosa Ziehau 	int i;
30776fbb0b9SSepherosa Ziehau 
30876fbb0b9SSepherosa Ziehau 	/* For FPGA version, PHY address 0 should be ignored. */
309ec7e787bSSepherosa Ziehau 	if (sc->jme_caps & JME_CAP_FPGA) {
31076fbb0b9SSepherosa Ziehau 		if (phy == 0)
31176fbb0b9SSepherosa Ziehau 			return (0);
31276fbb0b9SSepherosa Ziehau 	} else {
31376fbb0b9SSepherosa Ziehau 		if (sc->jme_phyaddr != phy)
31476fbb0b9SSepherosa Ziehau 			return (0);
31576fbb0b9SSepherosa Ziehau 	}
31676fbb0b9SSepherosa Ziehau 
31776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SMI, SMI_OP_WRITE | SMI_OP_EXECUTE |
31876fbb0b9SSepherosa Ziehau 	    ((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
31976fbb0b9SSepherosa Ziehau 	    SMI_PHY_ADDR(phy) | SMI_REG_ADDR(reg));
32076fbb0b9SSepherosa Ziehau 
32176fbb0b9SSepherosa Ziehau 	for (i = JME_PHY_TIMEOUT; i > 0; i--) {
32276fbb0b9SSepherosa Ziehau 		DELAY(1);
32376fbb0b9SSepherosa Ziehau 		if (((val = CSR_READ_4(sc, JME_SMI)) & SMI_OP_EXECUTE) == 0)
32476fbb0b9SSepherosa Ziehau 			break;
32576fbb0b9SSepherosa Ziehau 	}
32676fbb0b9SSepherosa Ziehau 	if (i == 0) {
32776fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "phy write timeout: "
32876fbb0b9SSepherosa Ziehau 			      "phy %d, reg %d\n", phy, reg);
32976fbb0b9SSepherosa Ziehau 	}
33076fbb0b9SSepherosa Ziehau 
33176fbb0b9SSepherosa Ziehau 	return (0);
33276fbb0b9SSepherosa Ziehau }
33376fbb0b9SSepherosa Ziehau 
33476fbb0b9SSepherosa Ziehau /*
33576fbb0b9SSepherosa Ziehau  *	Callback from MII layer when media changes.
33676fbb0b9SSepherosa Ziehau  */
33776fbb0b9SSepherosa Ziehau static void
33876fbb0b9SSepherosa Ziehau jme_miibus_statchg(device_t dev)
33976fbb0b9SSepherosa Ziehau {
34076fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
34176fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
34276fbb0b9SSepherosa Ziehau 	struct mii_data *mii;
34376fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
34476fbb0b9SSepherosa Ziehau 	bus_addr_t paddr;
3454447c752SSepherosa Ziehau 	int i, r;
34676fbb0b9SSepherosa Ziehau 
347*cccc3955SSepherosa Ziehau 	if (sc->jme_in_tick)
348*cccc3955SSepherosa Ziehau 		jme_serialize_skipmain(sc);
34931f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
35076fbb0b9SSepherosa Ziehau 
35176fbb0b9SSepherosa Ziehau 	if ((ifp->if_flags & IFF_RUNNING) == 0)
352*cccc3955SSepherosa Ziehau 		goto done;
35376fbb0b9SSepherosa Ziehau 
35476fbb0b9SSepherosa Ziehau 	mii = device_get_softc(sc->jme_miibus);
35576fbb0b9SSepherosa Ziehau 
356*cccc3955SSepherosa Ziehau 	sc->jme_has_link = FALSE;
35776fbb0b9SSepherosa Ziehau 	if ((mii->mii_media_status & IFM_AVALID) != 0) {
35876fbb0b9SSepherosa Ziehau 		switch (IFM_SUBTYPE(mii->mii_media_active)) {
35976fbb0b9SSepherosa Ziehau 		case IFM_10_T:
36076fbb0b9SSepherosa Ziehau 		case IFM_100_TX:
361*cccc3955SSepherosa Ziehau 			sc->jme_has_link = TRUE;
36276fbb0b9SSepherosa Ziehau 			break;
36376fbb0b9SSepherosa Ziehau 		case IFM_1000_T:
364ec7e787bSSepherosa Ziehau 			if (sc->jme_caps & JME_CAP_FASTETH)
36576fbb0b9SSepherosa Ziehau 				break;
366*cccc3955SSepherosa Ziehau 			sc->jme_has_link = TRUE;
36776fbb0b9SSepherosa Ziehau 			break;
36876fbb0b9SSepherosa Ziehau 		default:
36976fbb0b9SSepherosa Ziehau 			break;
37076fbb0b9SSepherosa Ziehau 		}
37176fbb0b9SSepherosa Ziehau 	}
37276fbb0b9SSepherosa Ziehau 
37376fbb0b9SSepherosa Ziehau 	/*
37476fbb0b9SSepherosa Ziehau 	 * Disabling Rx/Tx MACs have a side-effect of resetting
37576fbb0b9SSepherosa Ziehau 	 * JME_TXNDA/JME_RXNDA register to the first address of
37676fbb0b9SSepherosa Ziehau 	 * Tx/Rx descriptor address. So driver should reset its
37776fbb0b9SSepherosa Ziehau 	 * internal procucer/consumer pointer and reclaim any
37876fbb0b9SSepherosa Ziehau 	 * allocated resources.  Note, just saving the value of
37976fbb0b9SSepherosa Ziehau 	 * JME_TXNDA and JME_RXNDA registers before stopping MAC
38076fbb0b9SSepherosa Ziehau 	 * and restoring JME_TXNDA/JME_RXNDA register is not
38176fbb0b9SSepherosa Ziehau 	 * sufficient to make sure correct MAC state because
38276fbb0b9SSepherosa Ziehau 	 * stopping MAC operation can take a while and hardware
38376fbb0b9SSepherosa Ziehau 	 * might have updated JME_TXNDA/JME_RXNDA registers
38476fbb0b9SSepherosa Ziehau 	 * during the stop operation.
38576fbb0b9SSepherosa Ziehau 	 */
38676fbb0b9SSepherosa Ziehau 
38776fbb0b9SSepherosa Ziehau 	/* Disable interrupts */
38876fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
38976fbb0b9SSepherosa Ziehau 
39076fbb0b9SSepherosa Ziehau 	/* Stop driver */
39176fbb0b9SSepherosa Ziehau 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
39276fbb0b9SSepherosa Ziehau 	ifp->if_timer = 0;
39376fbb0b9SSepherosa Ziehau 	callout_stop(&sc->jme_tick_ch);
39476fbb0b9SSepherosa Ziehau 
39576fbb0b9SSepherosa Ziehau 	/* Stop receiver/transmitter. */
39676fbb0b9SSepherosa Ziehau 	jme_stop_rx(sc);
39776fbb0b9SSepherosa Ziehau 	jme_stop_tx(sc);
39876fbb0b9SSepherosa Ziehau 
3997b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
4004447c752SSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
4014447c752SSepherosa Ziehau 
402dea2452aSSepherosa Ziehau 		jme_rxeof(rdata, -1);
4034447c752SSepherosa Ziehau 		if (rdata->jme_rxhead != NULL)
4044447c752SSepherosa Ziehau 			m_freem(rdata->jme_rxhead);
405dea2452aSSepherosa Ziehau 		JME_RXCHAIN_RESET(rdata);
4064447c752SSepherosa Ziehau 
4074447c752SSepherosa Ziehau 		/*
4084447c752SSepherosa Ziehau 		 * Reuse configured Rx descriptors and reset
4094447c752SSepherosa Ziehau 		 * procuder/consumer index.
4104447c752SSepherosa Ziehau 		 */
4114447c752SSepherosa Ziehau 		rdata->jme_rx_cons = 0;
4124447c752SSepherosa Ziehau 	}
4136afef6abSSepherosa Ziehau 	if (JME_ENABLE_HWRSS(sc))
414deaeb5a5SSepherosa Ziehau 		jme_enable_rss(sc);
415deaeb5a5SSepherosa Ziehau 	else
416deaeb5a5SSepherosa Ziehau 		jme_disable_rss(sc);
41776fbb0b9SSepherosa Ziehau 
41876fbb0b9SSepherosa Ziehau 	jme_txeof(sc);
41976fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_cnt != 0) {
42076fbb0b9SSepherosa Ziehau 		/* Remove queued packets for transmit. */
421b020bb10SSepherosa Ziehau 		for (i = 0; i < sc->jme_cdata.jme_tx_desc_cnt; i++) {
42276fbb0b9SSepherosa Ziehau 			txd = &sc->jme_cdata.jme_txdesc[i];
42376fbb0b9SSepherosa Ziehau 			if (txd->tx_m != NULL) {
42476fbb0b9SSepherosa Ziehau 				bus_dmamap_unload(
42576fbb0b9SSepherosa Ziehau 				    sc->jme_cdata.jme_tx_tag,
42676fbb0b9SSepherosa Ziehau 				    txd->tx_dmamap);
42776fbb0b9SSepherosa Ziehau 				m_freem(txd->tx_m);
42876fbb0b9SSepherosa Ziehau 				txd->tx_m = NULL;
42976fbb0b9SSepherosa Ziehau 				txd->tx_ndesc = 0;
43076fbb0b9SSepherosa Ziehau 				ifp->if_oerrors++;
43176fbb0b9SSepherosa Ziehau 			}
43276fbb0b9SSepherosa Ziehau 		}
43376fbb0b9SSepherosa Ziehau 	}
43476fbb0b9SSepherosa Ziehau 	jme_init_tx_ring(sc);
43576fbb0b9SSepherosa Ziehau 
43676fbb0b9SSepherosa Ziehau 	/* Initialize shadow status block. */
43776fbb0b9SSepherosa Ziehau 	jme_init_ssb(sc);
43876fbb0b9SSepherosa Ziehau 
43976fbb0b9SSepherosa Ziehau 	/* Program MAC with resolved speed/duplex/flow-control. */
440*cccc3955SSepherosa Ziehau 	if (sc->jme_has_link) {
44176fbb0b9SSepherosa Ziehau 		jme_mac_config(sc);
44276fbb0b9SSepherosa Ziehau 
44376fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr);
44476fbb0b9SSepherosa Ziehau 
44576fbb0b9SSepherosa Ziehau 		/* Set Tx ring address to the hardware. */
4467405bec3SSepherosa Ziehau 		paddr = sc->jme_cdata.jme_tx_ring_paddr;
44776fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXDBA_HI, JME_ADDR_HI(paddr));
44876fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXDBA_LO, JME_ADDR_LO(paddr));
44976fbb0b9SSepherosa Ziehau 
4507b040092SSepherosa Ziehau 		for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
4514447c752SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXCSR,
4524447c752SSepherosa Ziehau 			    sc->jme_rxcsr | RXCSR_RXQ_N_SEL(r));
4534447c752SSepherosa Ziehau 
45476fbb0b9SSepherosa Ziehau 			/* Set Rx ring address to the hardware. */
4554447c752SSepherosa Ziehau 			paddr = sc->jme_cdata.jme_rx_data[r].jme_rx_ring_paddr;
45676fbb0b9SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXDBA_HI, JME_ADDR_HI(paddr));
45776fbb0b9SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXDBA_LO, JME_ADDR_LO(paddr));
4584447c752SSepherosa Ziehau 		}
45976fbb0b9SSepherosa Ziehau 
46076fbb0b9SSepherosa Ziehau 		/* Restart receiver/transmitter. */
46176fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr | RXCSR_RX_ENB |
46276fbb0b9SSepherosa Ziehau 		    RXCSR_RXQ_START);
46376fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB);
46476fbb0b9SSepherosa Ziehau 	}
46576fbb0b9SSepherosa Ziehau 
46676fbb0b9SSepherosa Ziehau 	ifp->if_flags |= IFF_RUNNING;
46776fbb0b9SSepherosa Ziehau 	ifp->if_flags &= ~IFF_OACTIVE;
46876fbb0b9SSepherosa Ziehau 	callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
46976fbb0b9SSepherosa Ziehau 
4709de40864SSepherosa Ziehau #ifdef DEVICE_POLLING
4719de40864SSepherosa Ziehau 	if (!(ifp->if_flags & IFF_POLLING))
4729de40864SSepherosa Ziehau #endif
47376fbb0b9SSepherosa Ziehau 	/* Reenable interrupts. */
47476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
475*cccc3955SSepherosa Ziehau 
476*cccc3955SSepherosa Ziehau done:
477*cccc3955SSepherosa Ziehau 	if (sc->jme_in_tick)
478*cccc3955SSepherosa Ziehau 		jme_deserialize_skipmain(sc);
47976fbb0b9SSepherosa Ziehau }
48076fbb0b9SSepherosa Ziehau 
48176fbb0b9SSepherosa Ziehau /*
48276fbb0b9SSepherosa Ziehau  *	Get the current interface media status.
48376fbb0b9SSepherosa Ziehau  */
48476fbb0b9SSepherosa Ziehau static void
48576fbb0b9SSepherosa Ziehau jme_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
48676fbb0b9SSepherosa Ziehau {
48776fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
48876fbb0b9SSepherosa Ziehau 	struct mii_data *mii = device_get_softc(sc->jme_miibus);
48976fbb0b9SSepherosa Ziehau 
49031f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
49176fbb0b9SSepherosa Ziehau 
49276fbb0b9SSepherosa Ziehau 	mii_pollstat(mii);
49376fbb0b9SSepherosa Ziehau 	ifmr->ifm_status = mii->mii_media_status;
49476fbb0b9SSepherosa Ziehau 	ifmr->ifm_active = mii->mii_media_active;
49576fbb0b9SSepherosa Ziehau }
49676fbb0b9SSepherosa Ziehau 
49776fbb0b9SSepherosa Ziehau /*
49876fbb0b9SSepherosa Ziehau  *	Set hardware to newly-selected media.
49976fbb0b9SSepherosa Ziehau  */
50076fbb0b9SSepherosa Ziehau static int
50176fbb0b9SSepherosa Ziehau jme_mediachange(struct ifnet *ifp)
50276fbb0b9SSepherosa Ziehau {
50376fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
50476fbb0b9SSepherosa Ziehau 	struct mii_data *mii = device_get_softc(sc->jme_miibus);
50576fbb0b9SSepherosa Ziehau 	int error;
50676fbb0b9SSepherosa Ziehau 
50731f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
50876fbb0b9SSepherosa Ziehau 
50976fbb0b9SSepherosa Ziehau 	if (mii->mii_instance != 0) {
51076fbb0b9SSepherosa Ziehau 		struct mii_softc *miisc;
51176fbb0b9SSepherosa Ziehau 
51276fbb0b9SSepherosa Ziehau 		LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
51376fbb0b9SSepherosa Ziehau 			mii_phy_reset(miisc);
51476fbb0b9SSepherosa Ziehau 	}
51576fbb0b9SSepherosa Ziehau 	error = mii_mediachg(mii);
51676fbb0b9SSepherosa Ziehau 
51776fbb0b9SSepherosa Ziehau 	return (error);
51876fbb0b9SSepherosa Ziehau }
51976fbb0b9SSepherosa Ziehau 
52076fbb0b9SSepherosa Ziehau static int
52176fbb0b9SSepherosa Ziehau jme_probe(device_t dev)
52276fbb0b9SSepherosa Ziehau {
52376fbb0b9SSepherosa Ziehau 	const struct jme_dev *sp;
52476fbb0b9SSepherosa Ziehau 	uint16_t vid, did;
52576fbb0b9SSepherosa Ziehau 
52676fbb0b9SSepherosa Ziehau 	vid = pci_get_vendor(dev);
52776fbb0b9SSepherosa Ziehau 	did = pci_get_device(dev);
52876fbb0b9SSepherosa Ziehau 	for (sp = jme_devs; sp->jme_name != NULL; ++sp) {
52976fbb0b9SSepherosa Ziehau 		if (vid == sp->jme_vendorid && did == sp->jme_deviceid) {
53076fbb0b9SSepherosa Ziehau 			struct jme_softc *sc = device_get_softc(dev);
5313a5f3f36SSepherosa Ziehau 
5323a5f3f36SSepherosa Ziehau 			sc->jme_caps = sp->jme_caps;
5333a5f3f36SSepherosa Ziehau 			device_set_desc(dev, sp->jme_name);
53476fbb0b9SSepherosa Ziehau 			return (0);
53576fbb0b9SSepherosa Ziehau 		}
53676fbb0b9SSepherosa Ziehau 	}
53776fbb0b9SSepherosa Ziehau 	return (ENXIO);
53876fbb0b9SSepherosa Ziehau }
53976fbb0b9SSepherosa Ziehau 
54076fbb0b9SSepherosa Ziehau static int
54176fbb0b9SSepherosa Ziehau jme_eeprom_read_byte(struct jme_softc *sc, uint8_t addr, uint8_t *val)
54276fbb0b9SSepherosa Ziehau {
54376fbb0b9SSepherosa Ziehau 	uint32_t reg;
54476fbb0b9SSepherosa Ziehau 	int i;
54576fbb0b9SSepherosa Ziehau 
54676fbb0b9SSepherosa Ziehau 	*val = 0;
54776fbb0b9SSepherosa Ziehau 	for (i = JME_TIMEOUT; i > 0; i--) {
54876fbb0b9SSepherosa Ziehau 		reg = CSR_READ_4(sc, JME_SMBCSR);
54976fbb0b9SSepherosa Ziehau 		if ((reg & SMBCSR_HW_BUSY_MASK) == SMBCSR_HW_IDLE)
55076fbb0b9SSepherosa Ziehau 			break;
55176fbb0b9SSepherosa Ziehau 		DELAY(1);
55276fbb0b9SSepherosa Ziehau 	}
55376fbb0b9SSepherosa Ziehau 
55476fbb0b9SSepherosa Ziehau 	if (i == 0) {
55576fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "EEPROM idle timeout!\n");
55676fbb0b9SSepherosa Ziehau 		return (ETIMEDOUT);
55776fbb0b9SSepherosa Ziehau 	}
55876fbb0b9SSepherosa Ziehau 
55976fbb0b9SSepherosa Ziehau 	reg = ((uint32_t)addr << SMBINTF_ADDR_SHIFT) & SMBINTF_ADDR_MASK;
56076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SMBINTF, reg | SMBINTF_RD | SMBINTF_CMD_TRIGGER);
56176fbb0b9SSepherosa Ziehau 	for (i = JME_TIMEOUT; i > 0; i--) {
56276fbb0b9SSepherosa Ziehau 		DELAY(1);
56376fbb0b9SSepherosa Ziehau 		reg = CSR_READ_4(sc, JME_SMBINTF);
56476fbb0b9SSepherosa Ziehau 		if ((reg & SMBINTF_CMD_TRIGGER) == 0)
56576fbb0b9SSepherosa Ziehau 			break;
56676fbb0b9SSepherosa Ziehau 	}
56776fbb0b9SSepherosa Ziehau 
56876fbb0b9SSepherosa Ziehau 	if (i == 0) {
56976fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "EEPROM read timeout!\n");
57076fbb0b9SSepherosa Ziehau 		return (ETIMEDOUT);
57176fbb0b9SSepherosa Ziehau 	}
57276fbb0b9SSepherosa Ziehau 
57376fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_SMBINTF);
57476fbb0b9SSepherosa Ziehau 	*val = (reg & SMBINTF_RD_DATA_MASK) >> SMBINTF_RD_DATA_SHIFT;
57576fbb0b9SSepherosa Ziehau 
57676fbb0b9SSepherosa Ziehau 	return (0);
57776fbb0b9SSepherosa Ziehau }
57876fbb0b9SSepherosa Ziehau 
57976fbb0b9SSepherosa Ziehau static int
58076fbb0b9SSepherosa Ziehau jme_eeprom_macaddr(struct jme_softc *sc, uint8_t eaddr[])
58176fbb0b9SSepherosa Ziehau {
58276fbb0b9SSepherosa Ziehau 	uint8_t fup, reg, val;
58376fbb0b9SSepherosa Ziehau 	uint32_t offset;
58476fbb0b9SSepherosa Ziehau 	int match;
58576fbb0b9SSepherosa Ziehau 
58676fbb0b9SSepherosa Ziehau 	offset = 0;
58776fbb0b9SSepherosa Ziehau 	if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 ||
58876fbb0b9SSepherosa Ziehau 	    fup != JME_EEPROM_SIG0)
58976fbb0b9SSepherosa Ziehau 		return (ENOENT);
59076fbb0b9SSepherosa Ziehau 	if (jme_eeprom_read_byte(sc, offset++, &fup) != 0 ||
59176fbb0b9SSepherosa Ziehau 	    fup != JME_EEPROM_SIG1)
59276fbb0b9SSepherosa Ziehau 		return (ENOENT);
59376fbb0b9SSepherosa Ziehau 	match = 0;
59476fbb0b9SSepherosa Ziehau 	do {
59576fbb0b9SSepherosa Ziehau 		if (jme_eeprom_read_byte(sc, offset, &fup) != 0)
59676fbb0b9SSepherosa Ziehau 			break;
59709927fe6SSepherosa Ziehau 		if (JME_EEPROM_MKDESC(JME_EEPROM_FUNC0, JME_EEPROM_PAGE_BAR1) ==
59809927fe6SSepherosa Ziehau 		    (fup & (JME_EEPROM_FUNC_MASK | JME_EEPROM_PAGE_MASK))) {
59976fbb0b9SSepherosa Ziehau 			if (jme_eeprom_read_byte(sc, offset + 1, &reg) != 0)
60076fbb0b9SSepherosa Ziehau 				break;
60176fbb0b9SSepherosa Ziehau 			if (reg >= JME_PAR0 &&
60276fbb0b9SSepherosa Ziehau 			    reg < JME_PAR0 + ETHER_ADDR_LEN) {
60376fbb0b9SSepherosa Ziehau 				if (jme_eeprom_read_byte(sc, offset + 2,
60476fbb0b9SSepherosa Ziehau 				    &val) != 0)
60576fbb0b9SSepherosa Ziehau 					break;
60676fbb0b9SSepherosa Ziehau 				eaddr[reg - JME_PAR0] = val;
60776fbb0b9SSepherosa Ziehau 				match++;
60876fbb0b9SSepherosa Ziehau 			}
60976fbb0b9SSepherosa Ziehau 		}
61009927fe6SSepherosa Ziehau 		/* Check for the end of EEPROM descriptor. */
61109927fe6SSepherosa Ziehau 		if ((fup & JME_EEPROM_DESC_END) == JME_EEPROM_DESC_END)
61209927fe6SSepherosa Ziehau 			break;
61376fbb0b9SSepherosa Ziehau 		/* Try next eeprom descriptor. */
61476fbb0b9SSepherosa Ziehau 		offset += JME_EEPROM_DESC_BYTES;
61576fbb0b9SSepherosa Ziehau 	} while (match != ETHER_ADDR_LEN && offset < JME_EEPROM_END);
61676fbb0b9SSepherosa Ziehau 
61776fbb0b9SSepherosa Ziehau 	if (match == ETHER_ADDR_LEN)
61876fbb0b9SSepherosa Ziehau 		return (0);
61976fbb0b9SSepherosa Ziehau 
62076fbb0b9SSepherosa Ziehau 	return (ENOENT);
62176fbb0b9SSepherosa Ziehau }
62276fbb0b9SSepherosa Ziehau 
62376fbb0b9SSepherosa Ziehau static void
62476fbb0b9SSepherosa Ziehau jme_reg_macaddr(struct jme_softc *sc, uint8_t eaddr[])
62576fbb0b9SSepherosa Ziehau {
62676fbb0b9SSepherosa Ziehau 	uint32_t par0, par1;
62776fbb0b9SSepherosa Ziehau 
62876fbb0b9SSepherosa Ziehau 	/* Read station address. */
62976fbb0b9SSepherosa Ziehau 	par0 = CSR_READ_4(sc, JME_PAR0);
63076fbb0b9SSepherosa Ziehau 	par1 = CSR_READ_4(sc, JME_PAR1);
63176fbb0b9SSepherosa Ziehau 	par1 &= 0xFFFF;
63276fbb0b9SSepherosa Ziehau 	if ((par0 == 0 && par1 == 0) || (par0 & 0x1)) {
63376fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev,
63476fbb0b9SSepherosa Ziehau 		    "generating fake ethernet address.\n");
63576fbb0b9SSepherosa Ziehau 		par0 = karc4random();
63676fbb0b9SSepherosa Ziehau 		/* Set OUI to JMicron. */
63776fbb0b9SSepherosa Ziehau 		eaddr[0] = 0x00;
63876fbb0b9SSepherosa Ziehau 		eaddr[1] = 0x1B;
63976fbb0b9SSepherosa Ziehau 		eaddr[2] = 0x8C;
64076fbb0b9SSepherosa Ziehau 		eaddr[3] = (par0 >> 16) & 0xff;
64176fbb0b9SSepherosa Ziehau 		eaddr[4] = (par0 >> 8) & 0xff;
64276fbb0b9SSepherosa Ziehau 		eaddr[5] = par0 & 0xff;
64376fbb0b9SSepherosa Ziehau 	} else {
64476fbb0b9SSepherosa Ziehau 		eaddr[0] = (par0 >> 0) & 0xFF;
64576fbb0b9SSepherosa Ziehau 		eaddr[1] = (par0 >> 8) & 0xFF;
64676fbb0b9SSepherosa Ziehau 		eaddr[2] = (par0 >> 16) & 0xFF;
64776fbb0b9SSepherosa Ziehau 		eaddr[3] = (par0 >> 24) & 0xFF;
64876fbb0b9SSepherosa Ziehau 		eaddr[4] = (par1 >> 0) & 0xFF;
64976fbb0b9SSepherosa Ziehau 		eaddr[5] = (par1 >> 8) & 0xFF;
65076fbb0b9SSepherosa Ziehau 	}
65176fbb0b9SSepherosa Ziehau }
65276fbb0b9SSepherosa Ziehau 
65376fbb0b9SSepherosa Ziehau static int
65476fbb0b9SSepherosa Ziehau jme_attach(device_t dev)
65576fbb0b9SSepherosa Ziehau {
65676fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
65776fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
65876fbb0b9SSepherosa Ziehau 	uint32_t reg;
659b249905bSSepherosa Ziehau 	uint16_t did;
660b249905bSSepherosa Ziehau 	uint8_t pcie_ptr, rev;
6617b040092SSepherosa Ziehau 	int error = 0, i, j, rx_desc_cnt;
66276fbb0b9SSepherosa Ziehau 	uint8_t eaddr[ETHER_ADDR_LEN];
66376fbb0b9SSepherosa Ziehau 
66431f0d5a2SSepherosa Ziehau 	lwkt_serialize_init(&sc->jme_serialize);
66531f0d5a2SSepherosa Ziehau 	lwkt_serialize_init(&sc->jme_cdata.jme_tx_serialize);
66631f0d5a2SSepherosa Ziehau 	for (i = 0; i < JME_NRXRING_MAX; ++i) {
66731f0d5a2SSepherosa Ziehau 		lwkt_serialize_init(
66831f0d5a2SSepherosa Ziehau 		    &sc->jme_cdata.jme_rx_data[i].jme_rx_serialize);
66931f0d5a2SSepherosa Ziehau 	}
67031f0d5a2SSepherosa Ziehau 
6717b040092SSepherosa Ziehau 	rx_desc_cnt = device_getenv_int(dev, "rx_desc_count",
6721cc217a9SSepherosa Ziehau 	    jme_rx_desc_count);
6737b040092SSepherosa Ziehau 	rx_desc_cnt = roundup(rx_desc_cnt, JME_NDESC_ALIGN);
6747b040092SSepherosa Ziehau 	if (rx_desc_cnt > JME_NDESC_MAX)
6757b040092SSepherosa Ziehau 		rx_desc_cnt = JME_NDESC_MAX;
67669325526SSepherosa Ziehau 
677b020bb10SSepherosa Ziehau 	sc->jme_cdata.jme_tx_desc_cnt = device_getenv_int(dev, "tx_desc_count",
6781cc217a9SSepherosa Ziehau 	    jme_tx_desc_count);
679b020bb10SSepherosa Ziehau 	sc->jme_cdata.jme_tx_desc_cnt = roundup(sc->jme_cdata.jme_tx_desc_cnt,
680b020bb10SSepherosa Ziehau 	    JME_NDESC_ALIGN);
681b020bb10SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_desc_cnt > JME_NDESC_MAX)
682b020bb10SSepherosa Ziehau 		sc->jme_cdata.jme_tx_desc_cnt = JME_NDESC_MAX;
68383b03786SSepherosa Ziehau 
6849389fe19SMatthew Dillon 	/*
685a317449eSSepherosa Ziehau 	 * Calculate rx rings
6869389fe19SMatthew Dillon 	 */
6877b040092SSepherosa Ziehau 	sc->jme_cdata.jme_rx_ring_cnt = device_getenv_int(dev, "rx_ring_count",
6881cc217a9SSepherosa Ziehau 	    jme_rx_ring_count);
6897b040092SSepherosa Ziehau 	sc->jme_cdata.jme_rx_ring_cnt =
6907b040092SSepherosa Ziehau 	    if_ring_count2(sc->jme_cdata.jme_rx_ring_cnt, JME_NRXRING_MAX);
6914447c752SSepherosa Ziehau 
69231f0d5a2SSepherosa Ziehau 	i = 0;
69331f0d5a2SSepherosa Ziehau 	sc->jme_serialize_arr[i++] = &sc->jme_serialize;
69429890f78SSepherosa Ziehau 
69529890f78SSepherosa Ziehau 	KKASSERT(i == JME_TX_SERIALIZE);
69631f0d5a2SSepherosa Ziehau 	sc->jme_serialize_arr[i++] = &sc->jme_cdata.jme_tx_serialize;
69729890f78SSepherosa Ziehau 
69829890f78SSepherosa Ziehau 	KKASSERT(i == JME_RX_SERIALIZE);
6997b040092SSepherosa Ziehau 	for (j = 0; j < sc->jme_cdata.jme_rx_ring_cnt; ++j) {
70031f0d5a2SSepherosa Ziehau 		sc->jme_serialize_arr[i++] =
70131f0d5a2SSepherosa Ziehau 		    &sc->jme_cdata.jme_rx_data[j].jme_rx_serialize;
70231f0d5a2SSepherosa Ziehau 	}
70331f0d5a2SSepherosa Ziehau 	KKASSERT(i <= JME_NSERIALIZE);
70431f0d5a2SSepherosa Ziehau 	sc->jme_serialize_cnt = i;
70531f0d5a2SSepherosa Ziehau 
70658880b0dSSepherosa Ziehau 	sc->jme_cdata.jme_sc = sc;
7077b040092SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
70858880b0dSSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
70958880b0dSSepherosa Ziehau 
71058880b0dSSepherosa Ziehau 		rdata->jme_sc = sc;
71158880b0dSSepherosa Ziehau 		rdata->jme_rx_coal = jme_rx_status[i].jme_coal;
71258880b0dSSepherosa Ziehau 		rdata->jme_rx_comp = jme_rx_status[i].jme_comp;
71358880b0dSSepherosa Ziehau 		rdata->jme_rx_empty = jme_rx_status[i].jme_empty;
71458880b0dSSepherosa Ziehau 		rdata->jme_rx_idx = i;
7157b040092SSepherosa Ziehau 		rdata->jme_rx_desc_cnt = rx_desc_cnt;
71658880b0dSSepherosa Ziehau 	}
71758880b0dSSepherosa Ziehau 
71876fbb0b9SSepherosa Ziehau 	sc->jme_dev = dev;
719b249905bSSepherosa Ziehau 	sc->jme_lowaddr = BUS_SPACE_MAXADDR;
720b249905bSSepherosa Ziehau 
72176fbb0b9SSepherosa Ziehau 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
72276fbb0b9SSepherosa Ziehau 
72376fbb0b9SSepherosa Ziehau 	callout_init(&sc->jme_tick_ch);
72476fbb0b9SSepherosa Ziehau 
72576fbb0b9SSepherosa Ziehau #ifndef BURN_BRIDGES
72676fbb0b9SSepherosa Ziehau 	if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
72776fbb0b9SSepherosa Ziehau 		uint32_t irq, mem;
72876fbb0b9SSepherosa Ziehau 
72976fbb0b9SSepherosa Ziehau 		irq = pci_read_config(dev, PCIR_INTLINE, 4);
73076fbb0b9SSepherosa Ziehau 		mem = pci_read_config(dev, JME_PCIR_BAR, 4);
73176fbb0b9SSepherosa Ziehau 
73276fbb0b9SSepherosa Ziehau 		device_printf(dev, "chip is in D%d power mode "
73376fbb0b9SSepherosa Ziehau 		    "-- setting to D0\n", pci_get_powerstate(dev));
73476fbb0b9SSepherosa Ziehau 
73576fbb0b9SSepherosa Ziehau 		pci_set_powerstate(dev, PCI_POWERSTATE_D0);
73676fbb0b9SSepherosa Ziehau 
73776fbb0b9SSepherosa Ziehau 		pci_write_config(dev, PCIR_INTLINE, irq, 4);
73876fbb0b9SSepherosa Ziehau 		pci_write_config(dev, JME_PCIR_BAR, mem, 4);
73976fbb0b9SSepherosa Ziehau 	}
74076fbb0b9SSepherosa Ziehau #endif	/* !BURN_BRIDGE */
74176fbb0b9SSepherosa Ziehau 
74276fbb0b9SSepherosa Ziehau 	/* Enable bus mastering */
74376fbb0b9SSepherosa Ziehau 	pci_enable_busmaster(dev);
74476fbb0b9SSepherosa Ziehau 
74576fbb0b9SSepherosa Ziehau 	/*
74676fbb0b9SSepherosa Ziehau 	 * Allocate IO memory
74776fbb0b9SSepherosa Ziehau 	 *
74876fbb0b9SSepherosa Ziehau 	 * JMC250 supports both memory mapped and I/O register space
74976fbb0b9SSepherosa Ziehau 	 * access.  Because I/O register access should use different
75076fbb0b9SSepherosa Ziehau 	 * BARs to access registers it's waste of time to use I/O
75176fbb0b9SSepherosa Ziehau 	 * register spce access.  JMC250 uses 16K to map entire memory
75276fbb0b9SSepherosa Ziehau 	 * space.
75376fbb0b9SSepherosa Ziehau 	 */
75476fbb0b9SSepherosa Ziehau 	sc->jme_mem_rid = JME_PCIR_BAR;
75576fbb0b9SSepherosa Ziehau 	sc->jme_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
75676fbb0b9SSepherosa Ziehau 						 &sc->jme_mem_rid, RF_ACTIVE);
75776fbb0b9SSepherosa Ziehau 	if (sc->jme_mem_res == NULL) {
75876fbb0b9SSepherosa Ziehau 		device_printf(dev, "can't allocate IO memory\n");
75976fbb0b9SSepherosa Ziehau 		return ENXIO;
76076fbb0b9SSepherosa Ziehau 	}
76176fbb0b9SSepherosa Ziehau 	sc->jme_mem_bt = rman_get_bustag(sc->jme_mem_res);
76276fbb0b9SSepherosa Ziehau 	sc->jme_mem_bh = rman_get_bushandle(sc->jme_mem_res);
76376fbb0b9SSepherosa Ziehau 
76476fbb0b9SSepherosa Ziehau 	/*
76576fbb0b9SSepherosa Ziehau 	 * Allocate IRQ
76676fbb0b9SSepherosa Ziehau 	 */
76758880b0dSSepherosa Ziehau 	error = jme_intr_alloc(dev);
76858880b0dSSepherosa Ziehau 	if (error)
76976fbb0b9SSepherosa Ziehau 		goto fail;
77076fbb0b9SSepherosa Ziehau 
77176fbb0b9SSepherosa Ziehau 	/*
772b249905bSSepherosa Ziehau 	 * Extract revisions
77376fbb0b9SSepherosa Ziehau 	 */
77476fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_CHIPMODE);
77576fbb0b9SSepherosa Ziehau 	if (((reg & CHIPMODE_FPGA_REV_MASK) >> CHIPMODE_FPGA_REV_SHIFT) !=
77676fbb0b9SSepherosa Ziehau 	    CHIPMODE_NOT_FPGA) {
777ec7e787bSSepherosa Ziehau 		sc->jme_caps |= JME_CAP_FPGA;
77876fbb0b9SSepherosa Ziehau 		if (bootverbose) {
77976fbb0b9SSepherosa Ziehau 			device_printf(dev, "FPGA revision: 0x%04x\n",
78076fbb0b9SSepherosa Ziehau 				      (reg & CHIPMODE_FPGA_REV_MASK) >>
78176fbb0b9SSepherosa Ziehau 				      CHIPMODE_FPGA_REV_SHIFT);
78276fbb0b9SSepherosa Ziehau 		}
78376fbb0b9SSepherosa Ziehau 	}
78476fbb0b9SSepherosa Ziehau 
785b249905bSSepherosa Ziehau 	/* NOTE: FM revision is put in the upper 4 bits */
786b249905bSSepherosa Ziehau 	rev = ((reg & CHIPMODE_REVFM_MASK) >> CHIPMODE_REVFM_SHIFT) << 4;
787b249905bSSepherosa Ziehau 	rev |= (reg & CHIPMODE_REVECO_MASK) >> CHIPMODE_REVECO_SHIFT;
788b249905bSSepherosa Ziehau 	if (bootverbose)
789b249905bSSepherosa Ziehau 		device_printf(dev, "Revision (FM/ECO): 0x%02x\n", rev);
790b249905bSSepherosa Ziehau 
791b249905bSSepherosa Ziehau 	did = pci_get_device(dev);
792b249905bSSepherosa Ziehau 	switch (did) {
793b249905bSSepherosa Ziehau 	case PCI_PRODUCT_JMICRON_JMC250:
794b249905bSSepherosa Ziehau 		if (rev == JME_REV1_A2)
795b249905bSSepherosa Ziehau 			sc->jme_workaround |= JME_WA_EXTFIFO | JME_WA_HDX;
796b249905bSSepherosa Ziehau 		break;
797b249905bSSepherosa Ziehau 
798b249905bSSepherosa Ziehau 	case PCI_PRODUCT_JMICRON_JMC260:
799b249905bSSepherosa Ziehau 		if (rev == JME_REV2)
800b249905bSSepherosa Ziehau 			sc->jme_lowaddr = BUS_SPACE_MAXADDR_32BIT;
801b249905bSSepherosa Ziehau 		break;
802b249905bSSepherosa Ziehau 
803b249905bSSepherosa Ziehau 	default:
804ed20d0e3SSascha Wildner 		panic("unknown device id 0x%04x", did);
805b249905bSSepherosa Ziehau 	}
806b249905bSSepherosa Ziehau 	if (rev >= JME_REV2) {
807b249905bSSepherosa Ziehau 		sc->jme_clksrc = GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC;
808b249905bSSepherosa Ziehau 		sc->jme_clksrc_1000 = GHC_TXOFL_CLKSRC_1000 |
809b249905bSSepherosa Ziehau 				      GHC_TXMAC_CLKSRC_1000;
810b249905bSSepherosa Ziehau 	}
811b249905bSSepherosa Ziehau 
81276fbb0b9SSepherosa Ziehau 	/* Reset the ethernet controller. */
81376fbb0b9SSepherosa Ziehau 	jme_reset(sc);
81476fbb0b9SSepherosa Ziehau 
81558880b0dSSepherosa Ziehau 	/* Map MSI/MSI-X vectors */
81658880b0dSSepherosa Ziehau 	jme_set_msinum(sc);
81758880b0dSSepherosa Ziehau 
81876fbb0b9SSepherosa Ziehau 	/* Get station address. */
81976fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_SMBCSR);
82076fbb0b9SSepherosa Ziehau 	if (reg & SMBCSR_EEPROM_PRESENT)
82176fbb0b9SSepherosa Ziehau 		error = jme_eeprom_macaddr(sc, eaddr);
82276fbb0b9SSepherosa Ziehau 	if (error != 0 || (reg & SMBCSR_EEPROM_PRESENT) == 0) {
82376fbb0b9SSepherosa Ziehau 		if (error != 0 && (bootverbose)) {
82476fbb0b9SSepherosa Ziehau 			device_printf(dev, "ethernet hardware address "
82576fbb0b9SSepherosa Ziehau 				      "not found in EEPROM.\n");
82676fbb0b9SSepherosa Ziehau 		}
82776fbb0b9SSepherosa Ziehau 		jme_reg_macaddr(sc, eaddr);
82876fbb0b9SSepherosa Ziehau 	}
82976fbb0b9SSepherosa Ziehau 
83076fbb0b9SSepherosa Ziehau 	/*
83176fbb0b9SSepherosa Ziehau 	 * Save PHY address.
83276fbb0b9SSepherosa Ziehau 	 * Integrated JR0211 has fixed PHY address whereas FPGA version
83376fbb0b9SSepherosa Ziehau 	 * requires PHY probing to get correct PHY address.
83476fbb0b9SSepherosa Ziehau 	 */
835ec7e787bSSepherosa Ziehau 	if ((sc->jme_caps & JME_CAP_FPGA) == 0) {
83676fbb0b9SSepherosa Ziehau 		sc->jme_phyaddr = CSR_READ_4(sc, JME_GPREG0) &
83776fbb0b9SSepherosa Ziehau 		    GPREG0_PHY_ADDR_MASK;
83876fbb0b9SSepherosa Ziehau 		if (bootverbose) {
83976fbb0b9SSepherosa Ziehau 			device_printf(dev, "PHY is at address %d.\n",
84076fbb0b9SSepherosa Ziehau 			    sc->jme_phyaddr);
84176fbb0b9SSepherosa Ziehau 		}
84276fbb0b9SSepherosa Ziehau 	} else {
84376fbb0b9SSepherosa Ziehau 		sc->jme_phyaddr = 0;
84476fbb0b9SSepherosa Ziehau 	}
84576fbb0b9SSepherosa Ziehau 
84676fbb0b9SSepherosa Ziehau 	/* Set max allowable DMA size. */
84776fbb0b9SSepherosa Ziehau 	pcie_ptr = pci_get_pciecap_ptr(dev);
84876fbb0b9SSepherosa Ziehau 	if (pcie_ptr != 0) {
84976fbb0b9SSepherosa Ziehau 		uint16_t ctrl;
85076fbb0b9SSepherosa Ziehau 
851ec7e787bSSepherosa Ziehau 		sc->jme_caps |= JME_CAP_PCIE;
85276fbb0b9SSepherosa Ziehau 		ctrl = pci_read_config(dev, pcie_ptr + PCIER_DEVCTRL, 2);
85376fbb0b9SSepherosa Ziehau 		if (bootverbose) {
85476fbb0b9SSepherosa Ziehau 			device_printf(dev, "Read request size : %d bytes.\n",
85576fbb0b9SSepherosa Ziehau 			    128 << ((ctrl >> 12) & 0x07));
85676fbb0b9SSepherosa Ziehau 			device_printf(dev, "TLP payload size : %d bytes.\n",
85776fbb0b9SSepherosa Ziehau 			    128 << ((ctrl >> 5) & 0x07));
85876fbb0b9SSepherosa Ziehau 		}
85976fbb0b9SSepherosa Ziehau 		switch (ctrl & PCIEM_DEVCTL_MAX_READRQ_MASK) {
86076fbb0b9SSepherosa Ziehau 		case PCIEM_DEVCTL_MAX_READRQ_128:
86176fbb0b9SSepherosa Ziehau 			sc->jme_tx_dma_size = TXCSR_DMA_SIZE_128;
86276fbb0b9SSepherosa Ziehau 			break;
86376fbb0b9SSepherosa Ziehau 		case PCIEM_DEVCTL_MAX_READRQ_256:
86476fbb0b9SSepherosa Ziehau 			sc->jme_tx_dma_size = TXCSR_DMA_SIZE_256;
86576fbb0b9SSepherosa Ziehau 			break;
86676fbb0b9SSepherosa Ziehau 		default:
86776fbb0b9SSepherosa Ziehau 			sc->jme_tx_dma_size = TXCSR_DMA_SIZE_512;
86876fbb0b9SSepherosa Ziehau 			break;
86976fbb0b9SSepherosa Ziehau 		}
87076fbb0b9SSepherosa Ziehau 		sc->jme_rx_dma_size = RXCSR_DMA_SIZE_128;
87176fbb0b9SSepherosa Ziehau 	} else {
87276fbb0b9SSepherosa Ziehau 		sc->jme_tx_dma_size = TXCSR_DMA_SIZE_512;
87376fbb0b9SSepherosa Ziehau 		sc->jme_rx_dma_size = RXCSR_DMA_SIZE_128;
87476fbb0b9SSepherosa Ziehau 	}
87576fbb0b9SSepherosa Ziehau 
87676fbb0b9SSepherosa Ziehau #ifdef notyet
87776fbb0b9SSepherosa Ziehau 	if (pci_find_extcap(dev, PCIY_PMG, &pmc) == 0)
878ec7e787bSSepherosa Ziehau 		sc->jme_caps |= JME_CAP_PMCAP;
87976fbb0b9SSepherosa Ziehau #endif
88076fbb0b9SSepherosa Ziehau 
88176fbb0b9SSepherosa Ziehau 	/*
88276fbb0b9SSepherosa Ziehau 	 * Create sysctl tree
88376fbb0b9SSepherosa Ziehau 	 */
88476fbb0b9SSepherosa Ziehau 	jme_sysctl_node(sc);
88576fbb0b9SSepherosa Ziehau 
88676fbb0b9SSepherosa Ziehau 	/* Allocate DMA stuffs */
88776fbb0b9SSepherosa Ziehau 	error = jme_dma_alloc(sc);
88876fbb0b9SSepherosa Ziehau 	if (error)
88976fbb0b9SSepherosa Ziehau 		goto fail;
89076fbb0b9SSepherosa Ziehau 
89176fbb0b9SSepherosa Ziehau 	ifp->if_softc = sc;
89276fbb0b9SSepherosa Ziehau 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
89376fbb0b9SSepherosa Ziehau 	ifp->if_init = jme_init;
89476fbb0b9SSepherosa Ziehau 	ifp->if_ioctl = jme_ioctl;
89576fbb0b9SSepherosa Ziehau 	ifp->if_start = jme_start;
8969de40864SSepherosa Ziehau #ifdef DEVICE_POLLING
8979de40864SSepherosa Ziehau 	ifp->if_poll = jme_poll;
8989de40864SSepherosa Ziehau #endif
89976fbb0b9SSepherosa Ziehau 	ifp->if_watchdog = jme_watchdog;
90031f0d5a2SSepherosa Ziehau 	ifp->if_serialize = jme_serialize;
90131f0d5a2SSepherosa Ziehau 	ifp->if_deserialize = jme_deserialize;
90231f0d5a2SSepherosa Ziehau 	ifp->if_tryserialize = jme_tryserialize;
90331f0d5a2SSepherosa Ziehau #ifdef INVARIANTS
90431f0d5a2SSepherosa Ziehau 	ifp->if_serialize_assert = jme_serialize_assert;
90531f0d5a2SSepherosa Ziehau #endif
906b020bb10SSepherosa Ziehau 	ifq_set_maxlen(&ifp->if_snd,
907b020bb10SSepherosa Ziehau 	    sc->jme_cdata.jme_tx_desc_cnt - JME_TXD_RSVD);
90876fbb0b9SSepherosa Ziehau 	ifq_set_ready(&ifp->if_snd);
90976fbb0b9SSepherosa Ziehau 
91076fbb0b9SSepherosa Ziehau 	/* JMC250 supports Tx/Rx checksum offload and hardware vlan tagging. */
91176fbb0b9SSepherosa Ziehau 	ifp->if_capabilities = IFCAP_HWCSUM |
91276fbb0b9SSepherosa Ziehau 			       IFCAP_VLAN_MTU |
91376fbb0b9SSepherosa Ziehau 			       IFCAP_VLAN_HWTAGGING;
9147b040092SSepherosa Ziehau 	if (sc->jme_cdata.jme_rx_ring_cnt > JME_NRXRING_MIN)
915d585233cSSepherosa Ziehau 		ifp->if_capabilities |= IFCAP_RSS;
91676fbb0b9SSepherosa Ziehau 	ifp->if_capenable = ifp->if_capabilities;
91776fbb0b9SSepherosa Ziehau 
9183d2aeb15SSepherosa Ziehau 	/*
9193d2aeb15SSepherosa Ziehau 	 * Disable TXCSUM by default to improve bulk data
9203d2aeb15SSepherosa Ziehau 	 * transmit performance (+20Mbps improvement).
9213d2aeb15SSepherosa Ziehau 	 */
9223d2aeb15SSepherosa Ziehau 	ifp->if_capenable &= ~IFCAP_TXCSUM;
9233d2aeb15SSepherosa Ziehau 
9243d2aeb15SSepherosa Ziehau 	if (ifp->if_capenable & IFCAP_TXCSUM)
9253d2aeb15SSepherosa Ziehau 		ifp->if_hwassist = JME_CSUM_FEATURES;
9263d2aeb15SSepherosa Ziehau 
92776fbb0b9SSepherosa Ziehau 	/* Set up MII bus. */
92876fbb0b9SSepherosa Ziehau 	error = mii_phy_probe(dev, &sc->jme_miibus,
92976fbb0b9SSepherosa Ziehau 			      jme_mediachange, jme_mediastatus);
93076fbb0b9SSepherosa Ziehau 	if (error) {
93176fbb0b9SSepherosa Ziehau 		device_printf(dev, "no PHY found!\n");
93276fbb0b9SSepherosa Ziehau 		goto fail;
93376fbb0b9SSepherosa Ziehau 	}
93476fbb0b9SSepherosa Ziehau 
93576fbb0b9SSepherosa Ziehau 	/*
93676fbb0b9SSepherosa Ziehau 	 * Save PHYADDR for FPGA mode PHY.
93776fbb0b9SSepherosa Ziehau 	 */
938ec7e787bSSepherosa Ziehau 	if (sc->jme_caps & JME_CAP_FPGA) {
93976fbb0b9SSepherosa Ziehau 		struct mii_data *mii = device_get_softc(sc->jme_miibus);
94076fbb0b9SSepherosa Ziehau 
94176fbb0b9SSepherosa Ziehau 		if (mii->mii_instance != 0) {
94276fbb0b9SSepherosa Ziehau 			struct mii_softc *miisc;
94376fbb0b9SSepherosa Ziehau 
94476fbb0b9SSepherosa Ziehau 			LIST_FOREACH(miisc, &mii->mii_phys, mii_list) {
94576fbb0b9SSepherosa Ziehau 				if (miisc->mii_phy != 0) {
94676fbb0b9SSepherosa Ziehau 					sc->jme_phyaddr = miisc->mii_phy;
94776fbb0b9SSepherosa Ziehau 					break;
94876fbb0b9SSepherosa Ziehau 				}
94976fbb0b9SSepherosa Ziehau 			}
95076fbb0b9SSepherosa Ziehau 			if (sc->jme_phyaddr != 0) {
95176fbb0b9SSepherosa Ziehau 				device_printf(sc->jme_dev,
95276fbb0b9SSepherosa Ziehau 				    "FPGA PHY is at %d\n", sc->jme_phyaddr);
95376fbb0b9SSepherosa Ziehau 				/* vendor magic. */
954dbe37f03SSepherosa Ziehau 				jme_miibus_writereg(dev, sc->jme_phyaddr,
955dbe37f03SSepherosa Ziehau 				    JMPHY_CONF, JMPHY_CONF_DEFFIFO);
956dbe37f03SSepherosa Ziehau 
957ad22907fSSepherosa Ziehau 				/* XXX should we clear JME_WA_EXTFIFO */
95876fbb0b9SSepherosa Ziehau 			}
95976fbb0b9SSepherosa Ziehau 		}
96076fbb0b9SSepherosa Ziehau 	}
96176fbb0b9SSepherosa Ziehau 
96276fbb0b9SSepherosa Ziehau 	ether_ifattach(ifp, eaddr, NULL);
96376fbb0b9SSepherosa Ziehau 
96476fbb0b9SSepherosa Ziehau 	/* Tell the upper layer(s) we support long frames. */
96576fbb0b9SSepherosa Ziehau 	ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
96676fbb0b9SSepherosa Ziehau 
96758880b0dSSepherosa Ziehau 	error = jme_intr_setup(dev);
96876fbb0b9SSepherosa Ziehau 	if (error) {
96976fbb0b9SSepherosa Ziehau 		ether_ifdetach(ifp);
97076fbb0b9SSepherosa Ziehau 		goto fail;
97176fbb0b9SSepherosa Ziehau 	}
97276fbb0b9SSepherosa Ziehau 
97376fbb0b9SSepherosa Ziehau 	return 0;
97476fbb0b9SSepherosa Ziehau fail:
97576fbb0b9SSepherosa Ziehau 	jme_detach(dev);
97676fbb0b9SSepherosa Ziehau 	return (error);
97776fbb0b9SSepherosa Ziehau }
97876fbb0b9SSepherosa Ziehau 
97976fbb0b9SSepherosa Ziehau static int
98076fbb0b9SSepherosa Ziehau jme_detach(device_t dev)
98176fbb0b9SSepherosa Ziehau {
98276fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
98376fbb0b9SSepherosa Ziehau 
98476fbb0b9SSepherosa Ziehau 	if (device_is_attached(dev)) {
98576fbb0b9SSepherosa Ziehau 		struct ifnet *ifp = &sc->arpcom.ac_if;
98676fbb0b9SSepherosa Ziehau 
98731f0d5a2SSepherosa Ziehau 		ifnet_serialize_all(ifp);
98876fbb0b9SSepherosa Ziehau 		jme_stop(sc);
98958880b0dSSepherosa Ziehau 		jme_intr_teardown(dev);
99031f0d5a2SSepherosa Ziehau 		ifnet_deserialize_all(ifp);
99176fbb0b9SSepherosa Ziehau 
99276fbb0b9SSepherosa Ziehau 		ether_ifdetach(ifp);
99376fbb0b9SSepherosa Ziehau 	}
99476fbb0b9SSepherosa Ziehau 
99576fbb0b9SSepherosa Ziehau 	if (sc->jme_sysctl_tree != NULL)
99676fbb0b9SSepherosa Ziehau 		sysctl_ctx_free(&sc->jme_sysctl_ctx);
99776fbb0b9SSepherosa Ziehau 
99876fbb0b9SSepherosa Ziehau 	if (sc->jme_miibus != NULL)
99976fbb0b9SSepherosa Ziehau 		device_delete_child(dev, sc->jme_miibus);
100076fbb0b9SSepherosa Ziehau 	bus_generic_detach(dev);
100176fbb0b9SSepherosa Ziehau 
100258880b0dSSepherosa Ziehau 	jme_intr_free(dev);
100376fbb0b9SSepherosa Ziehau 
100476fbb0b9SSepherosa Ziehau 	if (sc->jme_mem_res != NULL) {
100576fbb0b9SSepherosa Ziehau 		bus_release_resource(dev, SYS_RES_MEMORY, sc->jme_mem_rid,
100676fbb0b9SSepherosa Ziehau 				     sc->jme_mem_res);
100776fbb0b9SSepherosa Ziehau 	}
100876fbb0b9SSepherosa Ziehau 
10090b3414d9SSepherosa Ziehau 	jme_dma_free(sc);
101076fbb0b9SSepherosa Ziehau 
101176fbb0b9SSepherosa Ziehau 	return (0);
101276fbb0b9SSepherosa Ziehau }
101376fbb0b9SSepherosa Ziehau 
101476fbb0b9SSepherosa Ziehau static void
101576fbb0b9SSepherosa Ziehau jme_sysctl_node(struct jme_softc *sc)
101676fbb0b9SSepherosa Ziehau {
101783b03786SSepherosa Ziehau 	int coal_max;
1018760c056cSSepherosa Ziehau #ifdef JME_RSS_DEBUG
1019760c056cSSepherosa Ziehau 	int r;
1020760c056cSSepherosa Ziehau #endif
102183b03786SSepherosa Ziehau 
102276fbb0b9SSepherosa Ziehau 	sysctl_ctx_init(&sc->jme_sysctl_ctx);
102376fbb0b9SSepherosa Ziehau 	sc->jme_sysctl_tree = SYSCTL_ADD_NODE(&sc->jme_sysctl_ctx,
102476fbb0b9SSepherosa Ziehau 				SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
102576fbb0b9SSepherosa Ziehau 				device_get_nameunit(sc->jme_dev),
102676fbb0b9SSepherosa Ziehau 				CTLFLAG_RD, 0, "");
102776fbb0b9SSepherosa Ziehau 	if (sc->jme_sysctl_tree == NULL) {
102876fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "can't add sysctl node\n");
102976fbb0b9SSepherosa Ziehau 		return;
103076fbb0b9SSepherosa Ziehau 	}
103176fbb0b9SSepherosa Ziehau 
103276fbb0b9SSepherosa Ziehau 	SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
103376fbb0b9SSepherosa Ziehau 	    SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10342870abc4SSepherosa Ziehau 	    "tx_coal_to", CTLTYPE_INT | CTLFLAG_RW,
10352870abc4SSepherosa Ziehau 	    sc, 0, jme_sysctl_tx_coal_to, "I", "jme tx coalescing timeout");
103676fbb0b9SSepherosa Ziehau 
103776fbb0b9SSepherosa Ziehau 	SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
103876fbb0b9SSepherosa Ziehau 	    SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10392870abc4SSepherosa Ziehau 	    "tx_coal_pkt", CTLTYPE_INT | CTLFLAG_RW,
10402870abc4SSepherosa Ziehau 	    sc, 0, jme_sysctl_tx_coal_pkt, "I", "jme tx coalescing packet");
104176fbb0b9SSepherosa Ziehau 
104276fbb0b9SSepherosa Ziehau 	SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
104376fbb0b9SSepherosa Ziehau 	    SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10442870abc4SSepherosa Ziehau 	    "rx_coal_to", CTLTYPE_INT | CTLFLAG_RW,
10452870abc4SSepherosa Ziehau 	    sc, 0, jme_sysctl_rx_coal_to, "I", "jme rx coalescing timeout");
104676fbb0b9SSepherosa Ziehau 
104776fbb0b9SSepherosa Ziehau 	SYSCTL_ADD_PROC(&sc->jme_sysctl_ctx,
104876fbb0b9SSepherosa Ziehau 	    SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10492870abc4SSepherosa Ziehau 	    "rx_coal_pkt", CTLTYPE_INT | CTLFLAG_RW,
10502870abc4SSepherosa Ziehau 	    sc, 0, jme_sysctl_rx_coal_pkt, "I", "jme rx coalescing packet");
105176fbb0b9SSepherosa Ziehau 
105283b03786SSepherosa Ziehau 	SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
105383b03786SSepherosa Ziehau 		       SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10547b040092SSepherosa Ziehau 		       "rx_desc_count", CTLFLAG_RD,
10557b040092SSepherosa Ziehau 		       &sc->jme_cdata.jme_rx_data[0].jme_rx_desc_cnt,
105683b03786SSepherosa Ziehau 		       0, "RX desc count");
105783b03786SSepherosa Ziehau 	SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
105883b03786SSepherosa Ziehau 		       SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
1059b020bb10SSepherosa Ziehau 		       "tx_desc_count", CTLFLAG_RD,
1060b020bb10SSepherosa Ziehau 		       &sc->jme_cdata.jme_tx_desc_cnt,
106183b03786SSepherosa Ziehau 		       0, "TX desc count");
1062760c056cSSepherosa Ziehau 	SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1063760c056cSSepherosa Ziehau 		       SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
10647b040092SSepherosa Ziehau 		       "rx_ring_count", CTLFLAG_RD,
10657b040092SSepherosa Ziehau 		       &sc->jme_cdata.jme_rx_ring_cnt,
1066760c056cSSepherosa Ziehau 		       0, "RX ring count");
1067760c056cSSepherosa Ziehau #ifdef JME_RSS_DEBUG
1068760c056cSSepherosa Ziehau 	SYSCTL_ADD_INT(&sc->jme_sysctl_ctx,
1069760c056cSSepherosa Ziehau 		       SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
107024dd1705SSepherosa Ziehau 		       "rss_debug", CTLFLAG_RW, &sc->jme_rss_debug,
1071760c056cSSepherosa Ziehau 		       0, "RSS debug level");
10727b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
10737b040092SSepherosa Ziehau 		char rx_ring_pkt[32];
10747b040092SSepherosa Ziehau 
1075760c056cSSepherosa Ziehau 		ksnprintf(rx_ring_pkt, sizeof(rx_ring_pkt), "rx_ring%d_pkt", r);
10767b040092SSepherosa Ziehau 		SYSCTL_ADD_ULONG(&sc->jme_sysctl_ctx,
1077760c056cSSepherosa Ziehau 		    SYSCTL_CHILDREN(sc->jme_sysctl_tree), OID_AUTO,
107845eab60cSSepherosa Ziehau 		    rx_ring_pkt, CTLFLAG_RW,
10797b040092SSepherosa Ziehau 		    &sc->jme_cdata.jme_rx_data[r].jme_rx_pkt, "RXed packets");
1080760c056cSSepherosa Ziehau 	}
1081760c056cSSepherosa Ziehau #endif
108283b03786SSepherosa Ziehau 
108383b03786SSepherosa Ziehau 	/*
108483b03786SSepherosa Ziehau 	 * Set default coalesce valves
108583b03786SSepherosa Ziehau 	 */
108676fbb0b9SSepherosa Ziehau 	sc->jme_tx_coal_to = PCCTX_COAL_TO_DEFAULT;
108776fbb0b9SSepherosa Ziehau 	sc->jme_tx_coal_pkt = PCCTX_COAL_PKT_DEFAULT;
108876fbb0b9SSepherosa Ziehau 	sc->jme_rx_coal_to = PCCRX_COAL_TO_DEFAULT;
108976fbb0b9SSepherosa Ziehau 	sc->jme_rx_coal_pkt = PCCRX_COAL_PKT_DEFAULT;
109083b03786SSepherosa Ziehau 
109183b03786SSepherosa Ziehau 	/*
109283b03786SSepherosa Ziehau 	 * Adjust coalesce valves, in case that the number of TX/RX
109383b03786SSepherosa Ziehau 	 * descs are set to small values by users.
109483b03786SSepherosa Ziehau 	 *
109583b03786SSepherosa Ziehau 	 * NOTE: coal_max will not be zero, since number of descs
109683b03786SSepherosa Ziehau 	 * must aligned by JME_NDESC_ALIGN (16 currently)
109783b03786SSepherosa Ziehau 	 */
1098b020bb10SSepherosa Ziehau 	coal_max = sc->jme_cdata.jme_tx_desc_cnt / 6;
109983b03786SSepherosa Ziehau 	if (coal_max < sc->jme_tx_coal_pkt)
110083b03786SSepherosa Ziehau 		sc->jme_tx_coal_pkt = coal_max;
110183b03786SSepherosa Ziehau 
11027b040092SSepherosa Ziehau 	coal_max = sc->jme_cdata.jme_rx_data[0].jme_rx_desc_cnt / 4;
110383b03786SSepherosa Ziehau 	if (coal_max < sc->jme_rx_coal_pkt)
110483b03786SSepherosa Ziehau 		sc->jme_rx_coal_pkt = coal_max;
110576fbb0b9SSepherosa Ziehau }
110676fbb0b9SSepherosa Ziehau 
110776fbb0b9SSepherosa Ziehau static int
110876fbb0b9SSepherosa Ziehau jme_dma_alloc(struct jme_softc *sc)
110976fbb0b9SSepherosa Ziehau {
111076fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
11111128a202SSepherosa Ziehau 	bus_dmamem_t dmem;
1112ff7f3632SSepherosa Ziehau 	int error, i, asize;
111376fbb0b9SSepherosa Ziehau 
111483b03786SSepherosa Ziehau 	sc->jme_cdata.jme_txdesc =
1115b020bb10SSepherosa Ziehau 	kmalloc(sc->jme_cdata.jme_tx_desc_cnt * sizeof(struct jme_txdesc),
111683b03786SSepherosa Ziehau 		M_DEVBUF, M_WAITOK | M_ZERO);
11177b040092SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
11187b040092SSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[i];
11197b040092SSepherosa Ziehau 
11207b040092SSepherosa Ziehau 		rdata->jme_rxdesc =
11217b040092SSepherosa Ziehau 		kmalloc(rdata->jme_rx_desc_cnt * sizeof(struct jme_rxdesc),
112283b03786SSepherosa Ziehau 			M_DEVBUF, M_WAITOK | M_ZERO);
11234447c752SSepherosa Ziehau 	}
112483b03786SSepherosa Ziehau 
112576fbb0b9SSepherosa Ziehau 	/* Create parent ring tag. */
112676fbb0b9SSepherosa Ziehau 	error = bus_dma_tag_create(NULL,/* parent */
1127a7547dadSSepherosa Ziehau 	    1, JME_RING_BOUNDARY,	/* algnmnt, boundary */
1128a7547dadSSepherosa Ziehau 	    sc->jme_lowaddr,		/* lowaddr */
112976fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXADDR,		/* highaddr */
113076fbb0b9SSepherosa Ziehau 	    NULL, NULL,			/* filter, filterarg */
113176fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXSIZE_32BIT,	/* maxsize */
113276fbb0b9SSepherosa Ziehau 	    0,				/* nsegments */
113376fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
113476fbb0b9SSepherosa Ziehau 	    0,				/* flags */
113576fbb0b9SSepherosa Ziehau 	    &sc->jme_cdata.jme_ring_tag);
113676fbb0b9SSepherosa Ziehau 	if (error) {
113776fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev,
113876fbb0b9SSepherosa Ziehau 		    "could not create parent ring DMA tag.\n");
113976fbb0b9SSepherosa Ziehau 		return error;
114076fbb0b9SSepherosa Ziehau 	}
114176fbb0b9SSepherosa Ziehau 
114276fbb0b9SSepherosa Ziehau 	/*
114376fbb0b9SSepherosa Ziehau 	 * Create DMA stuffs for TX ring
114476fbb0b9SSepherosa Ziehau 	 */
1145ff7f3632SSepherosa Ziehau 	asize = roundup2(JME_TX_RING_SIZE(sc), JME_TX_RING_ALIGN);
11461128a202SSepherosa Ziehau 	error = bus_dmamem_coherent(sc->jme_cdata.jme_ring_tag,
11471128a202SSepherosa Ziehau 			JME_TX_RING_ALIGN, 0,
11480eb220ecSSepherosa Ziehau 			BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1149ff7f3632SSepherosa Ziehau 			asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
115076fbb0b9SSepherosa Ziehau 	if (error) {
11511128a202SSepherosa Ziehau 		device_printf(sc->jme_dev, "could not allocate Tx ring.\n");
115276fbb0b9SSepherosa Ziehau 		return error;
115376fbb0b9SSepherosa Ziehau 	}
11541128a202SSepherosa Ziehau 	sc->jme_cdata.jme_tx_ring_tag = dmem.dmem_tag;
11551128a202SSepherosa Ziehau 	sc->jme_cdata.jme_tx_ring_map = dmem.dmem_map;
11561128a202SSepherosa Ziehau 	sc->jme_cdata.jme_tx_ring = dmem.dmem_addr;
11571128a202SSepherosa Ziehau 	sc->jme_cdata.jme_tx_ring_paddr = dmem.dmem_busaddr;
115876fbb0b9SSepherosa Ziehau 
115976fbb0b9SSepherosa Ziehau 	/*
11601128a202SSepherosa Ziehau 	 * Create DMA stuffs for RX rings
116176fbb0b9SSepherosa Ziehau 	 */
11627b040092SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
1163dea2452aSSepherosa Ziehau 		error = jme_rxring_dma_alloc(&sc->jme_cdata.jme_rx_data[i]);
11644447c752SSepherosa Ziehau 		if (error)
116576fbb0b9SSepherosa Ziehau 			return error;
116676fbb0b9SSepherosa Ziehau 	}
116776fbb0b9SSepherosa Ziehau 
116876fbb0b9SSepherosa Ziehau 	/* Create parent buffer tag. */
116976fbb0b9SSepherosa Ziehau 	error = bus_dma_tag_create(NULL,/* parent */
117076fbb0b9SSepherosa Ziehau 	    1, 0,			/* algnmnt, boundary */
1171b249905bSSepherosa Ziehau 	    sc->jme_lowaddr,		/* lowaddr */
117276fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXADDR,		/* highaddr */
117376fbb0b9SSepherosa Ziehau 	    NULL, NULL,			/* filter, filterarg */
117476fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXSIZE_32BIT,	/* maxsize */
117576fbb0b9SSepherosa Ziehau 	    0,				/* nsegments */
117676fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
117776fbb0b9SSepherosa Ziehau 	    0,				/* flags */
117876fbb0b9SSepherosa Ziehau 	    &sc->jme_cdata.jme_buffer_tag);
117976fbb0b9SSepherosa Ziehau 	if (error) {
118076fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev,
118176fbb0b9SSepherosa Ziehau 		    "could not create parent buffer DMA tag.\n");
118276fbb0b9SSepherosa Ziehau 		return error;
118376fbb0b9SSepherosa Ziehau 	}
118476fbb0b9SSepherosa Ziehau 
118576fbb0b9SSepherosa Ziehau 	/*
118676fbb0b9SSepherosa Ziehau 	 * Create DMA stuffs for shadow status block
118776fbb0b9SSepherosa Ziehau 	 */
1188ff7f3632SSepherosa Ziehau 	asize = roundup2(JME_SSB_SIZE, JME_SSB_ALIGN);
11891128a202SSepherosa Ziehau 	error = bus_dmamem_coherent(sc->jme_cdata.jme_buffer_tag,
11900eb220ecSSepherosa Ziehau 			JME_SSB_ALIGN, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
1191ff7f3632SSepherosa Ziehau 			asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
119276fbb0b9SSepherosa Ziehau 	if (error) {
119376fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev,
11941128a202SSepherosa Ziehau 		    "could not create shadow status block.\n");
119576fbb0b9SSepherosa Ziehau 		return error;
119676fbb0b9SSepherosa Ziehau 	}
11971128a202SSepherosa Ziehau 	sc->jme_cdata.jme_ssb_tag = dmem.dmem_tag;
11981128a202SSepherosa Ziehau 	sc->jme_cdata.jme_ssb_map = dmem.dmem_map;
11991128a202SSepherosa Ziehau 	sc->jme_cdata.jme_ssb_block = dmem.dmem_addr;
12001128a202SSepherosa Ziehau 	sc->jme_cdata.jme_ssb_block_paddr = dmem.dmem_busaddr;
120176fbb0b9SSepherosa Ziehau 
120276fbb0b9SSepherosa Ziehau 	/*
120376fbb0b9SSepherosa Ziehau 	 * Create DMA stuffs for TX buffers
120476fbb0b9SSepherosa Ziehau 	 */
120576fbb0b9SSepherosa Ziehau 
120676fbb0b9SSepherosa Ziehau 	/* Create tag for Tx buffers. */
120776fbb0b9SSepherosa Ziehau 	error = bus_dma_tag_create(sc->jme_cdata.jme_buffer_tag,/* parent */
120876fbb0b9SSepherosa Ziehau 	    1, 0,			/* algnmnt, boundary */
12090eb220ecSSepherosa Ziehau 	    BUS_SPACE_MAXADDR,		/* lowaddr */
121076fbb0b9SSepherosa Ziehau 	    BUS_SPACE_MAXADDR,		/* highaddr */
121176fbb0b9SSepherosa Ziehau 	    NULL, NULL,			/* filter, filterarg */
12129d424ceeSSepherosa Ziehau 	    JME_JUMBO_FRAMELEN,		/* maxsize */
121376fbb0b9SSepherosa Ziehau 	    JME_MAXTXSEGS,		/* nsegments */
12149d424ceeSSepherosa Ziehau 	    JME_MAXSEGSIZE,		/* maxsegsize */
12159d424ceeSSepherosa Ziehau 	    BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,/* flags */
121676fbb0b9SSepherosa Ziehau 	    &sc->jme_cdata.jme_tx_tag);
121776fbb0b9SSepherosa Ziehau 	if (error != 0) {
121876fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "could not create Tx DMA tag.\n");
121976fbb0b9SSepherosa Ziehau 		return error;
122076fbb0b9SSepherosa Ziehau 	}
122176fbb0b9SSepherosa Ziehau 
122276fbb0b9SSepherosa Ziehau 	/* Create DMA maps for Tx buffers. */
1223b020bb10SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_tx_desc_cnt; i++) {
122476fbb0b9SSepherosa Ziehau 		txd = &sc->jme_cdata.jme_txdesc[i];
12259d424ceeSSepherosa Ziehau 		error = bus_dmamap_create(sc->jme_cdata.jme_tx_tag,
12269d424ceeSSepherosa Ziehau 				BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
122776fbb0b9SSepherosa Ziehau 				&txd->tx_dmamap);
122876fbb0b9SSepherosa Ziehau 		if (error) {
122976fbb0b9SSepherosa Ziehau 			int j;
123076fbb0b9SSepherosa Ziehau 
123176fbb0b9SSepherosa Ziehau 			device_printf(sc->jme_dev,
123276fbb0b9SSepherosa Ziehau 			    "could not create %dth Tx dmamap.\n", i);
123376fbb0b9SSepherosa Ziehau 
123476fbb0b9SSepherosa Ziehau 			for (j = 0; j < i; ++j) {
123576fbb0b9SSepherosa Ziehau 				txd = &sc->jme_cdata.jme_txdesc[j];
123676fbb0b9SSepherosa Ziehau 				bus_dmamap_destroy(sc->jme_cdata.jme_tx_tag,
123776fbb0b9SSepherosa Ziehau 						   txd->tx_dmamap);
123876fbb0b9SSepherosa Ziehau 			}
123976fbb0b9SSepherosa Ziehau 			bus_dma_tag_destroy(sc->jme_cdata.jme_tx_tag);
124076fbb0b9SSepherosa Ziehau 			sc->jme_cdata.jme_tx_tag = NULL;
124176fbb0b9SSepherosa Ziehau 			return error;
124276fbb0b9SSepherosa Ziehau 		}
124376fbb0b9SSepherosa Ziehau 	}
124476fbb0b9SSepherosa Ziehau 
124576fbb0b9SSepherosa Ziehau 	/*
124676fbb0b9SSepherosa Ziehau 	 * Create DMA stuffs for RX buffers
124776fbb0b9SSepherosa Ziehau 	 */
12487b040092SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_rx_ring_cnt; ++i) {
1249dea2452aSSepherosa Ziehau 		error = jme_rxbuf_dma_alloc(&sc->jme_cdata.jme_rx_data[i]);
12504447c752SSepherosa Ziehau 		if (error)
125176fbb0b9SSepherosa Ziehau 			return error;
125276fbb0b9SSepherosa Ziehau 	}
125376fbb0b9SSepherosa Ziehau 	return 0;
125476fbb0b9SSepherosa Ziehau }
125576fbb0b9SSepherosa Ziehau 
125676fbb0b9SSepherosa Ziehau static void
12570b3414d9SSepherosa Ziehau jme_dma_free(struct jme_softc *sc)
125876fbb0b9SSepherosa Ziehau {
125976fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
126076fbb0b9SSepherosa Ziehau 	struct jme_rxdesc *rxd;
12614447c752SSepherosa Ziehau 	struct jme_rxdata *rdata;
12624447c752SSepherosa Ziehau 	int i, r;
126376fbb0b9SSepherosa Ziehau 
126476fbb0b9SSepherosa Ziehau 	/* Tx ring */
126576fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_ring_tag != NULL) {
126676fbb0b9SSepherosa Ziehau 		bus_dmamap_unload(sc->jme_cdata.jme_tx_ring_tag,
126776fbb0b9SSepherosa Ziehau 		    sc->jme_cdata.jme_tx_ring_map);
126876fbb0b9SSepherosa Ziehau 		bus_dmamem_free(sc->jme_cdata.jme_tx_ring_tag,
1269560616bfSSepherosa Ziehau 		    sc->jme_cdata.jme_tx_ring,
127076fbb0b9SSepherosa Ziehau 		    sc->jme_cdata.jme_tx_ring_map);
127176fbb0b9SSepherosa Ziehau 		bus_dma_tag_destroy(sc->jme_cdata.jme_tx_ring_tag);
127276fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_tx_ring_tag = NULL;
127376fbb0b9SSepherosa Ziehau 	}
127476fbb0b9SSepherosa Ziehau 
127576fbb0b9SSepherosa Ziehau 	/* Rx ring */
12767b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
12774447c752SSepherosa Ziehau 		rdata = &sc->jme_cdata.jme_rx_data[r];
12784447c752SSepherosa Ziehau 		if (rdata->jme_rx_ring_tag != NULL) {
12794447c752SSepherosa Ziehau 			bus_dmamap_unload(rdata->jme_rx_ring_tag,
12804447c752SSepherosa Ziehau 					  rdata->jme_rx_ring_map);
12814447c752SSepherosa Ziehau 			bus_dmamem_free(rdata->jme_rx_ring_tag,
12824447c752SSepherosa Ziehau 					rdata->jme_rx_ring,
12834447c752SSepherosa Ziehau 					rdata->jme_rx_ring_map);
12844447c752SSepherosa Ziehau 			bus_dma_tag_destroy(rdata->jme_rx_ring_tag);
12854447c752SSepherosa Ziehau 			rdata->jme_rx_ring_tag = NULL;
12864447c752SSepherosa Ziehau 		}
128776fbb0b9SSepherosa Ziehau 	}
128876fbb0b9SSepherosa Ziehau 
128976fbb0b9SSepherosa Ziehau 	/* Tx buffers */
129076fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_tag != NULL) {
1291b020bb10SSepherosa Ziehau 		for (i = 0; i < sc->jme_cdata.jme_tx_desc_cnt; i++) {
129276fbb0b9SSepherosa Ziehau 			txd = &sc->jme_cdata.jme_txdesc[i];
129376fbb0b9SSepherosa Ziehau 			bus_dmamap_destroy(sc->jme_cdata.jme_tx_tag,
129476fbb0b9SSepherosa Ziehau 			    txd->tx_dmamap);
129576fbb0b9SSepherosa Ziehau 		}
129676fbb0b9SSepherosa Ziehau 		bus_dma_tag_destroy(sc->jme_cdata.jme_tx_tag);
129776fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_tx_tag = NULL;
129876fbb0b9SSepherosa Ziehau 	}
129976fbb0b9SSepherosa Ziehau 
130076fbb0b9SSepherosa Ziehau 	/* Rx buffers */
13017b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
13024447c752SSepherosa Ziehau 		rdata = &sc->jme_cdata.jme_rx_data[r];
13034447c752SSepherosa Ziehau 		if (rdata->jme_rx_tag != NULL) {
13047b040092SSepherosa Ziehau 			for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
13054447c752SSepherosa Ziehau 				rxd = &rdata->jme_rxdesc[i];
13064447c752SSepherosa Ziehau 				bus_dmamap_destroy(rdata->jme_rx_tag,
130776fbb0b9SSepherosa Ziehau 						   rxd->rx_dmamap);
130876fbb0b9SSepherosa Ziehau 			}
13094447c752SSepherosa Ziehau 			bus_dmamap_destroy(rdata->jme_rx_tag,
13104447c752SSepherosa Ziehau 					   rdata->jme_rx_sparemap);
13114447c752SSepherosa Ziehau 			bus_dma_tag_destroy(rdata->jme_rx_tag);
13124447c752SSepherosa Ziehau 			rdata->jme_rx_tag = NULL;
13134447c752SSepherosa Ziehau 		}
131476fbb0b9SSepherosa Ziehau 	}
131576fbb0b9SSepherosa Ziehau 
131676fbb0b9SSepherosa Ziehau 	/* Shadow status block. */
131776fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_ssb_tag != NULL) {
131876fbb0b9SSepherosa Ziehau 		bus_dmamap_unload(sc->jme_cdata.jme_ssb_tag,
131976fbb0b9SSepherosa Ziehau 		    sc->jme_cdata.jme_ssb_map);
132076fbb0b9SSepherosa Ziehau 		bus_dmamem_free(sc->jme_cdata.jme_ssb_tag,
1321560616bfSSepherosa Ziehau 		    sc->jme_cdata.jme_ssb_block,
132276fbb0b9SSepherosa Ziehau 		    sc->jme_cdata.jme_ssb_map);
132376fbb0b9SSepherosa Ziehau 		bus_dma_tag_destroy(sc->jme_cdata.jme_ssb_tag);
132476fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_ssb_tag = NULL;
132576fbb0b9SSepherosa Ziehau 	}
132676fbb0b9SSepherosa Ziehau 
132776fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_buffer_tag != NULL) {
132876fbb0b9SSepherosa Ziehau 		bus_dma_tag_destroy(sc->jme_cdata.jme_buffer_tag);
132976fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_buffer_tag = NULL;
133076fbb0b9SSepherosa Ziehau 	}
133176fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_ring_tag != NULL) {
133276fbb0b9SSepherosa Ziehau 		bus_dma_tag_destroy(sc->jme_cdata.jme_ring_tag);
133376fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_ring_tag = NULL;
133476fbb0b9SSepherosa Ziehau 	}
133583b03786SSepherosa Ziehau 
133683b03786SSepherosa Ziehau 	if (sc->jme_cdata.jme_txdesc != NULL) {
133783b03786SSepherosa Ziehau 		kfree(sc->jme_cdata.jme_txdesc, M_DEVBUF);
133883b03786SSepherosa Ziehau 		sc->jme_cdata.jme_txdesc = NULL;
133983b03786SSepherosa Ziehau 	}
13407b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
13414447c752SSepherosa Ziehau 		rdata = &sc->jme_cdata.jme_rx_data[r];
13424447c752SSepherosa Ziehau 		if (rdata->jme_rxdesc != NULL) {
13434447c752SSepherosa Ziehau 			kfree(rdata->jme_rxdesc, M_DEVBUF);
13444447c752SSepherosa Ziehau 			rdata->jme_rxdesc = NULL;
13454447c752SSepherosa Ziehau 		}
134683b03786SSepherosa Ziehau 	}
134783b03786SSepherosa Ziehau }
134876fbb0b9SSepherosa Ziehau 
134976fbb0b9SSepherosa Ziehau /*
135076fbb0b9SSepherosa Ziehau  *	Make sure the interface is stopped at reboot time.
135176fbb0b9SSepherosa Ziehau  */
135276fbb0b9SSepherosa Ziehau static int
135376fbb0b9SSepherosa Ziehau jme_shutdown(device_t dev)
135476fbb0b9SSepherosa Ziehau {
135576fbb0b9SSepherosa Ziehau 	return jme_suspend(dev);
135676fbb0b9SSepherosa Ziehau }
135776fbb0b9SSepherosa Ziehau 
135876fbb0b9SSepherosa Ziehau #ifdef notyet
135976fbb0b9SSepherosa Ziehau /*
136076fbb0b9SSepherosa Ziehau  * Unlike other ethernet controllers, JMC250 requires
136176fbb0b9SSepherosa Ziehau  * explicit resetting link speed to 10/100Mbps as gigabit
136276fbb0b9SSepherosa Ziehau  * link will cunsume more power than 375mA.
136376fbb0b9SSepherosa Ziehau  * Note, we reset the link speed to 10/100Mbps with
136476fbb0b9SSepherosa Ziehau  * auto-negotiation but we don't know whether that operation
136576fbb0b9SSepherosa Ziehau  * would succeed or not as we have no control after powering
136676fbb0b9SSepherosa Ziehau  * off. If the renegotiation fail WOL may not work. Running
136776fbb0b9SSepherosa Ziehau  * at 1Gbps draws more power than 375mA at 3.3V which is
136876fbb0b9SSepherosa Ziehau  * specified in PCI specification and that would result in
136976fbb0b9SSepherosa Ziehau  * complete shutdowning power to ethernet controller.
137076fbb0b9SSepherosa Ziehau  *
137176fbb0b9SSepherosa Ziehau  * TODO
137276fbb0b9SSepherosa Ziehau  *  Save current negotiated media speed/duplex/flow-control
137376fbb0b9SSepherosa Ziehau  *  to softc and restore the same link again after resuming.
137476fbb0b9SSepherosa Ziehau  *  PHY handling such as power down/resetting to 100Mbps
137576fbb0b9SSepherosa Ziehau  *  may be better handled in suspend method in phy driver.
137676fbb0b9SSepherosa Ziehau  */
137776fbb0b9SSepherosa Ziehau static void
137876fbb0b9SSepherosa Ziehau jme_setlinkspeed(struct jme_softc *sc)
137976fbb0b9SSepherosa Ziehau {
138076fbb0b9SSepherosa Ziehau 	struct mii_data *mii;
138176fbb0b9SSepherosa Ziehau 	int aneg, i;
138276fbb0b9SSepherosa Ziehau 
138376fbb0b9SSepherosa Ziehau 	JME_LOCK_ASSERT(sc);
138476fbb0b9SSepherosa Ziehau 
138576fbb0b9SSepherosa Ziehau 	mii = device_get_softc(sc->jme_miibus);
138676fbb0b9SSepherosa Ziehau 	mii_pollstat(mii);
138776fbb0b9SSepherosa Ziehau 	aneg = 0;
138876fbb0b9SSepherosa Ziehau 	if ((mii->mii_media_status & IFM_AVALID) != 0) {
138976fbb0b9SSepherosa Ziehau 		switch IFM_SUBTYPE(mii->mii_media_active) {
139076fbb0b9SSepherosa Ziehau 		case IFM_10_T:
139176fbb0b9SSepherosa Ziehau 		case IFM_100_TX:
139276fbb0b9SSepherosa Ziehau 			return;
139376fbb0b9SSepherosa Ziehau 		case IFM_1000_T:
139476fbb0b9SSepherosa Ziehau 			aneg++;
139576fbb0b9SSepherosa Ziehau 		default:
139676fbb0b9SSepherosa Ziehau 			break;
139776fbb0b9SSepherosa Ziehau 		}
139876fbb0b9SSepherosa Ziehau 	}
139976fbb0b9SSepherosa Ziehau 	jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_100T2CR, 0);
140076fbb0b9SSepherosa Ziehau 	jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_ANAR,
140176fbb0b9SSepherosa Ziehau 	    ANAR_TX_FD | ANAR_TX | ANAR_10_FD | ANAR_10 | ANAR_CSMA);
140276fbb0b9SSepherosa Ziehau 	jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr, MII_BMCR,
140376fbb0b9SSepherosa Ziehau 	    BMCR_AUTOEN | BMCR_STARTNEG);
140476fbb0b9SSepherosa Ziehau 	DELAY(1000);
140576fbb0b9SSepherosa Ziehau 	if (aneg != 0) {
140676fbb0b9SSepherosa Ziehau 		/* Poll link state until jme(4) get a 10/100 link. */
140776fbb0b9SSepherosa Ziehau 		for (i = 0; i < MII_ANEGTICKS_GIGE; i++) {
140876fbb0b9SSepherosa Ziehau 			mii_pollstat(mii);
140976fbb0b9SSepherosa Ziehau 			if ((mii->mii_media_status & IFM_AVALID) != 0) {
141076fbb0b9SSepherosa Ziehau 				switch (IFM_SUBTYPE(mii->mii_media_active)) {
141176fbb0b9SSepherosa Ziehau 				case IFM_10_T:
141276fbb0b9SSepherosa Ziehau 				case IFM_100_TX:
141376fbb0b9SSepherosa Ziehau 					jme_mac_config(sc);
141476fbb0b9SSepherosa Ziehau 					return;
141576fbb0b9SSepherosa Ziehau 				default:
141676fbb0b9SSepherosa Ziehau 					break;
141776fbb0b9SSepherosa Ziehau 				}
141876fbb0b9SSepherosa Ziehau 			}
141976fbb0b9SSepherosa Ziehau 			JME_UNLOCK(sc);
142076fbb0b9SSepherosa Ziehau 			pause("jmelnk", hz);
142176fbb0b9SSepherosa Ziehau 			JME_LOCK(sc);
142276fbb0b9SSepherosa Ziehau 		}
142376fbb0b9SSepherosa Ziehau 		if (i == MII_ANEGTICKS_GIGE)
142476fbb0b9SSepherosa Ziehau 			device_printf(sc->jme_dev, "establishing link failed, "
142576fbb0b9SSepherosa Ziehau 			    "WOL may not work!");
142676fbb0b9SSepherosa Ziehau 	}
142776fbb0b9SSepherosa Ziehau 	/*
142876fbb0b9SSepherosa Ziehau 	 * No link, force MAC to have 100Mbps, full-duplex link.
142976fbb0b9SSepherosa Ziehau 	 * This is the last resort and may/may not work.
143076fbb0b9SSepherosa Ziehau 	 */
143176fbb0b9SSepherosa Ziehau 	mii->mii_media_status = IFM_AVALID | IFM_ACTIVE;
143276fbb0b9SSepherosa Ziehau 	mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX;
143376fbb0b9SSepherosa Ziehau 	jme_mac_config(sc);
143476fbb0b9SSepherosa Ziehau }
143576fbb0b9SSepherosa Ziehau 
143676fbb0b9SSepherosa Ziehau static void
143776fbb0b9SSepherosa Ziehau jme_setwol(struct jme_softc *sc)
143876fbb0b9SSepherosa Ziehau {
143976fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
144076fbb0b9SSepherosa Ziehau 	uint32_t gpr, pmcs;
144176fbb0b9SSepherosa Ziehau 	uint16_t pmstat;
144276fbb0b9SSepherosa Ziehau 	int pmc;
144376fbb0b9SSepherosa Ziehau 
144476fbb0b9SSepherosa Ziehau 	if (pci_find_extcap(sc->jme_dev, PCIY_PMG, &pmc) != 0) {
144576fbb0b9SSepherosa Ziehau 		/* No PME capability, PHY power down. */
144676fbb0b9SSepherosa Ziehau 		jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
144776fbb0b9SSepherosa Ziehau 		    MII_BMCR, BMCR_PDOWN);
144876fbb0b9SSepherosa Ziehau 		return;
144976fbb0b9SSepherosa Ziehau 	}
145076fbb0b9SSepherosa Ziehau 
145176fbb0b9SSepherosa Ziehau 	gpr = CSR_READ_4(sc, JME_GPREG0) & ~GPREG0_PME_ENB;
145276fbb0b9SSepherosa Ziehau 	pmcs = CSR_READ_4(sc, JME_PMCS);
145376fbb0b9SSepherosa Ziehau 	pmcs &= ~PMCS_WOL_ENB_MASK;
145476fbb0b9SSepherosa Ziehau 	if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0) {
145576fbb0b9SSepherosa Ziehau 		pmcs |= PMCS_MAGIC_FRAME | PMCS_MAGIC_FRAME_ENB;
145676fbb0b9SSepherosa Ziehau 		/* Enable PME message. */
145776fbb0b9SSepherosa Ziehau 		gpr |= GPREG0_PME_ENB;
145876fbb0b9SSepherosa Ziehau 		/* For gigabit controllers, reset link speed to 10/100. */
1459ec7e787bSSepherosa Ziehau 		if ((sc->jme_caps & JME_CAP_FASTETH) == 0)
146076fbb0b9SSepherosa Ziehau 			jme_setlinkspeed(sc);
146176fbb0b9SSepherosa Ziehau 	}
146276fbb0b9SSepherosa Ziehau 
146376fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_PMCS, pmcs);
146476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG0, gpr);
146576fbb0b9SSepherosa Ziehau 
146676fbb0b9SSepherosa Ziehau 	/* Request PME. */
146776fbb0b9SSepherosa Ziehau 	pmstat = pci_read_config(sc->jme_dev, pmc + PCIR_POWER_STATUS, 2);
146876fbb0b9SSepherosa Ziehau 	pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
146976fbb0b9SSepherosa Ziehau 	if ((ifp->if_capenable & IFCAP_WOL) != 0)
147076fbb0b9SSepherosa Ziehau 		pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
147176fbb0b9SSepherosa Ziehau 	pci_write_config(sc->jme_dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
147276fbb0b9SSepherosa Ziehau 	if ((ifp->if_capenable & IFCAP_WOL) == 0) {
147376fbb0b9SSepherosa Ziehau 		/* No WOL, PHY power down. */
147476fbb0b9SSepherosa Ziehau 		jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
147576fbb0b9SSepherosa Ziehau 		    MII_BMCR, BMCR_PDOWN);
147676fbb0b9SSepherosa Ziehau 	}
147776fbb0b9SSepherosa Ziehau }
147876fbb0b9SSepherosa Ziehau #endif
147976fbb0b9SSepherosa Ziehau 
148076fbb0b9SSepherosa Ziehau static int
148176fbb0b9SSepherosa Ziehau jme_suspend(device_t dev)
148276fbb0b9SSepherosa Ziehau {
148376fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
148476fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
148576fbb0b9SSepherosa Ziehau 
148631f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
148776fbb0b9SSepherosa Ziehau 	jme_stop(sc);
148876fbb0b9SSepherosa Ziehau #ifdef notyet
148976fbb0b9SSepherosa Ziehau 	jme_setwol(sc);
149076fbb0b9SSepherosa Ziehau #endif
149131f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
149276fbb0b9SSepherosa Ziehau 
149376fbb0b9SSepherosa Ziehau 	return (0);
149476fbb0b9SSepherosa Ziehau }
149576fbb0b9SSepherosa Ziehau 
149676fbb0b9SSepherosa Ziehau static int
149776fbb0b9SSepherosa Ziehau jme_resume(device_t dev)
149876fbb0b9SSepherosa Ziehau {
149976fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
150076fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
150176fbb0b9SSepherosa Ziehau #ifdef notyet
150276fbb0b9SSepherosa Ziehau 	int pmc;
150376fbb0b9SSepherosa Ziehau #endif
150476fbb0b9SSepherosa Ziehau 
150531f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
150676fbb0b9SSepherosa Ziehau 
150776fbb0b9SSepherosa Ziehau #ifdef notyet
150876fbb0b9SSepherosa Ziehau 	if (pci_find_extcap(sc->jme_dev, PCIY_PMG, &pmc) != 0) {
150976fbb0b9SSepherosa Ziehau 		uint16_t pmstat;
151076fbb0b9SSepherosa Ziehau 
151176fbb0b9SSepherosa Ziehau 		pmstat = pci_read_config(sc->jme_dev,
151276fbb0b9SSepherosa Ziehau 		    pmc + PCIR_POWER_STATUS, 2);
151376fbb0b9SSepherosa Ziehau 		/* Disable PME clear PME status. */
151476fbb0b9SSepherosa Ziehau 		pmstat &= ~PCIM_PSTAT_PMEENABLE;
151576fbb0b9SSepherosa Ziehau 		pci_write_config(sc->jme_dev,
151676fbb0b9SSepherosa Ziehau 		    pmc + PCIR_POWER_STATUS, pmstat, 2);
151776fbb0b9SSepherosa Ziehau 	}
151876fbb0b9SSepherosa Ziehau #endif
151976fbb0b9SSepherosa Ziehau 
152076fbb0b9SSepherosa Ziehau 	if (ifp->if_flags & IFF_UP)
152176fbb0b9SSepherosa Ziehau 		jme_init(sc);
152276fbb0b9SSepherosa Ziehau 
152331f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
152476fbb0b9SSepherosa Ziehau 
152576fbb0b9SSepherosa Ziehau 	return (0);
152676fbb0b9SSepherosa Ziehau }
152776fbb0b9SSepherosa Ziehau 
152876fbb0b9SSepherosa Ziehau static int
152976fbb0b9SSepherosa Ziehau jme_encap(struct jme_softc *sc, struct mbuf **m_head)
153076fbb0b9SSepherosa Ziehau {
153176fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
153276fbb0b9SSepherosa Ziehau 	struct jme_desc *desc;
153376fbb0b9SSepherosa Ziehau 	struct mbuf *m;
153476fbb0b9SSepherosa Ziehau 	bus_dma_segment_t txsegs[JME_MAXTXSEGS];
1535b0ba1747SSepherosa Ziehau 	int maxsegs, nsegs;
15369b3ee148SSepherosa Ziehau 	int error, i, prod, symbol_desc;
15377228f061SSepherosa Ziehau 	uint32_t cflags, flag64;
153876fbb0b9SSepherosa Ziehau 
153976fbb0b9SSepherosa Ziehau 	M_ASSERTPKTHDR((*m_head));
154076fbb0b9SSepherosa Ziehau 
154176fbb0b9SSepherosa Ziehau 	prod = sc->jme_cdata.jme_tx_prod;
154276fbb0b9SSepherosa Ziehau 	txd = &sc->jme_cdata.jme_txdesc[prod];
154376fbb0b9SSepherosa Ziehau 
15449b3ee148SSepherosa Ziehau 	if (sc->jme_lowaddr != BUS_SPACE_MAXADDR_32BIT)
15459b3ee148SSepherosa Ziehau 		symbol_desc = 1;
15469b3ee148SSepherosa Ziehau 	else
15479b3ee148SSepherosa Ziehau 		symbol_desc = 0;
15489b3ee148SSepherosa Ziehau 
1549b020bb10SSepherosa Ziehau 	maxsegs = (sc->jme_cdata.jme_tx_desc_cnt - sc->jme_cdata.jme_tx_cnt) -
15509b3ee148SSepherosa Ziehau 		  (JME_TXD_RSVD + symbol_desc);
155176fbb0b9SSepherosa Ziehau 	if (maxsegs > JME_MAXTXSEGS)
155276fbb0b9SSepherosa Ziehau 		maxsegs = JME_MAXTXSEGS;
15539b3ee148SSepherosa Ziehau 	KASSERT(maxsegs >= (sc->jme_txd_spare - symbol_desc),
1554ed20d0e3SSascha Wildner 		("not enough segments %d", maxsegs));
155576fbb0b9SSepherosa Ziehau 
1556b0ba1747SSepherosa Ziehau 	error = bus_dmamap_load_mbuf_defrag(sc->jme_cdata.jme_tx_tag,
1557b0ba1747SSepherosa Ziehau 			txd->tx_dmamap, m_head,
1558b0ba1747SSepherosa Ziehau 			txsegs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
1559b0ba1747SSepherosa Ziehau 	if (error)
1560ecc6de9eSSepherosa Ziehau 		goto fail;
156176fbb0b9SSepherosa Ziehau 
15624458ee95SSepherosa Ziehau 	bus_dmamap_sync(sc->jme_cdata.jme_tx_tag, txd->tx_dmamap,
15634458ee95SSepherosa Ziehau 			BUS_DMASYNC_PREWRITE);
15644458ee95SSepherosa Ziehau 
156576fbb0b9SSepherosa Ziehau 	m = *m_head;
156676fbb0b9SSepherosa Ziehau 	cflags = 0;
156776fbb0b9SSepherosa Ziehau 
156876fbb0b9SSepherosa Ziehau 	/* Configure checksum offload. */
156976fbb0b9SSepherosa Ziehau 	if (m->m_pkthdr.csum_flags & CSUM_IP)
157076fbb0b9SSepherosa Ziehau 		cflags |= JME_TD_IPCSUM;
157176fbb0b9SSepherosa Ziehau 	if (m->m_pkthdr.csum_flags & CSUM_TCP)
157276fbb0b9SSepherosa Ziehau 		cflags |= JME_TD_TCPCSUM;
157376fbb0b9SSepherosa Ziehau 	if (m->m_pkthdr.csum_flags & CSUM_UDP)
157476fbb0b9SSepherosa Ziehau 		cflags |= JME_TD_UDPCSUM;
157576fbb0b9SSepherosa Ziehau 
157676fbb0b9SSepherosa Ziehau 	/* Configure VLAN. */
157776fbb0b9SSepherosa Ziehau 	if (m->m_flags & M_VLANTAG) {
157876fbb0b9SSepherosa Ziehau 		cflags |= (m->m_pkthdr.ether_vlantag & JME_TD_VLAN_MASK);
157976fbb0b9SSepherosa Ziehau 		cflags |= JME_TD_VLAN_TAG;
158076fbb0b9SSepherosa Ziehau 	}
158176fbb0b9SSepherosa Ziehau 
1582560616bfSSepherosa Ziehau 	desc = &sc->jme_cdata.jme_tx_ring[prod];
158376fbb0b9SSepherosa Ziehau 	desc->flags = htole32(cflags);
158476fbb0b9SSepherosa Ziehau 	desc->addr_hi = htole32(m->m_pkthdr.len);
15857228f061SSepherosa Ziehau 	if (sc->jme_lowaddr != BUS_SPACE_MAXADDR_32BIT) {
15867228f061SSepherosa Ziehau 		/*
15877228f061SSepherosa Ziehau 		 * Use 64bits TX desc chain format.
15887228f061SSepherosa Ziehau 		 *
15897228f061SSepherosa Ziehau 		 * The first TX desc of the chain, which is setup here,
15907228f061SSepherosa Ziehau 		 * is just a symbol TX desc carrying no payload.
15917228f061SSepherosa Ziehau 		 */
15927228f061SSepherosa Ziehau 		flag64 = JME_TD_64BIT;
15937228f061SSepherosa Ziehau 		desc->buflen = 0;
159476fbb0b9SSepherosa Ziehau 		desc->addr_lo = 0;
15957228f061SSepherosa Ziehau 
15967228f061SSepherosa Ziehau 		/* No effective TX desc is consumed */
15977228f061SSepherosa Ziehau 		i = 0;
15987228f061SSepherosa Ziehau 	} else {
15997228f061SSepherosa Ziehau 		/*
16007228f061SSepherosa Ziehau 		 * Use 32bits TX desc chain format.
16017228f061SSepherosa Ziehau 		 *
16027228f061SSepherosa Ziehau 		 * The first TX desc of the chain, which is setup here,
16037228f061SSepherosa Ziehau 		 * is an effective TX desc carrying the first segment of
16047228f061SSepherosa Ziehau 		 * the mbuf chain.
16057228f061SSepherosa Ziehau 		 */
16067228f061SSepherosa Ziehau 		flag64 = 0;
16077228f061SSepherosa Ziehau 		desc->buflen = htole32(txsegs[0].ds_len);
16087228f061SSepherosa Ziehau 		desc->addr_lo = htole32(JME_ADDR_LO(txsegs[0].ds_addr));
16097228f061SSepherosa Ziehau 
16107228f061SSepherosa Ziehau 		/* One effective TX desc is consumed */
16117228f061SSepherosa Ziehau 		i = 1;
16127228f061SSepherosa Ziehau 	}
161376fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_cnt++;
16149de40864SSepherosa Ziehau 	KKASSERT(sc->jme_cdata.jme_tx_cnt - i <
1615022f915eSSepherosa Ziehau 		 sc->jme_cdata.jme_tx_desc_cnt - JME_TXD_RSVD);
1616b020bb10SSepherosa Ziehau 	JME_DESC_INC(prod, sc->jme_cdata.jme_tx_desc_cnt);
16177228f061SSepherosa Ziehau 
16187228f061SSepherosa Ziehau 	txd->tx_ndesc = 1 - i;
1619b0ba1747SSepherosa Ziehau 	for (; i < nsegs; i++) {
1620560616bfSSepherosa Ziehau 		desc = &sc->jme_cdata.jme_tx_ring[prod];
162176fbb0b9SSepherosa Ziehau 		desc->buflen = htole32(txsegs[i].ds_len);
162276fbb0b9SSepherosa Ziehau 		desc->addr_hi = htole32(JME_ADDR_HI(txsegs[i].ds_addr));
162376fbb0b9SSepherosa Ziehau 		desc->addr_lo = htole32(JME_ADDR_LO(txsegs[i].ds_addr));
1624a54bd021SSepherosa Ziehau 		desc->flags = htole32(JME_TD_OWN | flag64);
162576fbb0b9SSepherosa Ziehau 
162676fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_tx_cnt++;
162776fbb0b9SSepherosa Ziehau 		KKASSERT(sc->jme_cdata.jme_tx_cnt <=
1628022f915eSSepherosa Ziehau 			 sc->jme_cdata.jme_tx_desc_cnt - JME_TXD_RSVD);
1629b020bb10SSepherosa Ziehau 		JME_DESC_INC(prod, sc->jme_cdata.jme_tx_desc_cnt);
163076fbb0b9SSepherosa Ziehau 	}
163176fbb0b9SSepherosa Ziehau 
163276fbb0b9SSepherosa Ziehau 	/* Update producer index. */
163376fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_prod = prod;
163476fbb0b9SSepherosa Ziehau 	/*
163576fbb0b9SSepherosa Ziehau 	 * Finally request interrupt and give the first descriptor
163676fbb0b9SSepherosa Ziehau 	 * owenership to hardware.
163776fbb0b9SSepherosa Ziehau 	 */
163876fbb0b9SSepherosa Ziehau 	desc = txd->tx_desc;
163976fbb0b9SSepherosa Ziehau 	desc->flags |= htole32(JME_TD_OWN | JME_TD_INTR);
164076fbb0b9SSepherosa Ziehau 
164176fbb0b9SSepherosa Ziehau 	txd->tx_m = m;
1642b0ba1747SSepherosa Ziehau 	txd->tx_ndesc += nsegs;
164376fbb0b9SSepherosa Ziehau 
1644ecc6de9eSSepherosa Ziehau 	return 0;
1645ecc6de9eSSepherosa Ziehau fail:
1646ecc6de9eSSepherosa Ziehau 	m_freem(*m_head);
1647ecc6de9eSSepherosa Ziehau 	*m_head = NULL;
1648ecc6de9eSSepherosa Ziehau 	return error;
164976fbb0b9SSepherosa Ziehau }
165076fbb0b9SSepherosa Ziehau 
165176fbb0b9SSepherosa Ziehau static void
165276fbb0b9SSepherosa Ziehau jme_start(struct ifnet *ifp)
165376fbb0b9SSepherosa Ziehau {
165476fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
165576fbb0b9SSepherosa Ziehau 	struct mbuf *m_head;
165676fbb0b9SSepherosa Ziehau 	int enq = 0;
165776fbb0b9SSepherosa Ziehau 
165831f0d5a2SSepherosa Ziehau 	ASSERT_SERIALIZED(&sc->jme_cdata.jme_tx_serialize);
165976fbb0b9SSepherosa Ziehau 
1660*cccc3955SSepherosa Ziehau 	if (!sc->jme_has_link) {
166176fbb0b9SSepherosa Ziehau 		ifq_purge(&ifp->if_snd);
166276fbb0b9SSepherosa Ziehau 		return;
166376fbb0b9SSepherosa Ziehau 	}
166476fbb0b9SSepherosa Ziehau 
166576fbb0b9SSepherosa Ziehau 	if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
166676fbb0b9SSepherosa Ziehau 		return;
166776fbb0b9SSepherosa Ziehau 
166883b03786SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_cnt >= JME_TX_DESC_HIWAT(sc))
166976fbb0b9SSepherosa Ziehau 		jme_txeof(sc);
167076fbb0b9SSepherosa Ziehau 
167176fbb0b9SSepherosa Ziehau 	while (!ifq_is_empty(&ifp->if_snd)) {
167276fbb0b9SSepherosa Ziehau 		/*
167376fbb0b9SSepherosa Ziehau 		 * Check number of available TX descs, always
167476fbb0b9SSepherosa Ziehau 		 * leave JME_TXD_RSVD free TX descs.
167576fbb0b9SSepherosa Ziehau 		 */
167676fbb0b9SSepherosa Ziehau 		if (sc->jme_cdata.jme_tx_cnt + sc->jme_txd_spare >
1677b020bb10SSepherosa Ziehau 		    sc->jme_cdata.jme_tx_desc_cnt - JME_TXD_RSVD) {
167876fbb0b9SSepherosa Ziehau 			ifp->if_flags |= IFF_OACTIVE;
167976fbb0b9SSepherosa Ziehau 			break;
168076fbb0b9SSepherosa Ziehau 		}
168176fbb0b9SSepherosa Ziehau 
168276fbb0b9SSepherosa Ziehau 		m_head = ifq_dequeue(&ifp->if_snd, NULL);
168376fbb0b9SSepherosa Ziehau 		if (m_head == NULL)
168476fbb0b9SSepherosa Ziehau 			break;
168576fbb0b9SSepherosa Ziehau 
168676fbb0b9SSepherosa Ziehau 		/*
168776fbb0b9SSepherosa Ziehau 		 * Pack the data into the transmit ring. If we
168876fbb0b9SSepherosa Ziehau 		 * don't have room, set the OACTIVE flag and wait
168976fbb0b9SSepherosa Ziehau 		 * for the NIC to drain the ring.
169076fbb0b9SSepherosa Ziehau 		 */
169176fbb0b9SSepherosa Ziehau 		if (jme_encap(sc, &m_head)) {
1692ecc6de9eSSepherosa Ziehau 			KKASSERT(m_head == NULL);
169376fbb0b9SSepherosa Ziehau 			ifp->if_oerrors++;
169476fbb0b9SSepherosa Ziehau 			ifp->if_flags |= IFF_OACTIVE;
169576fbb0b9SSepherosa Ziehau 			break;
169676fbb0b9SSepherosa Ziehau 		}
169776fbb0b9SSepherosa Ziehau 		enq++;
169876fbb0b9SSepherosa Ziehau 
169976fbb0b9SSepherosa Ziehau 		/*
170076fbb0b9SSepherosa Ziehau 		 * If there's a BPF listener, bounce a copy of this frame
170176fbb0b9SSepherosa Ziehau 		 * to him.
170276fbb0b9SSepherosa Ziehau 		 */
170376fbb0b9SSepherosa Ziehau 		ETHER_BPF_MTAP(ifp, m_head);
170476fbb0b9SSepherosa Ziehau 	}
170576fbb0b9SSepherosa Ziehau 
170676fbb0b9SSepherosa Ziehau 	if (enq > 0) {
170776fbb0b9SSepherosa Ziehau 		/*
170876fbb0b9SSepherosa Ziehau 		 * Reading TXCSR takes very long time under heavy load
170976fbb0b9SSepherosa Ziehau 		 * so cache TXCSR value and writes the ORed value with
171076fbb0b9SSepherosa Ziehau 		 * the kick command to the TXCSR. This saves one register
171176fbb0b9SSepherosa Ziehau 		 * access cycle.
171276fbb0b9SSepherosa Ziehau 		 */
171376fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr | TXCSR_TX_ENB |
171476fbb0b9SSepherosa Ziehau 		    TXCSR_TXQ_N_START(TXCSR_TXQ0));
171576fbb0b9SSepherosa Ziehau 		/* Set a timeout in case the chip goes out to lunch. */
171676fbb0b9SSepherosa Ziehau 		ifp->if_timer = JME_TX_TIMEOUT;
171776fbb0b9SSepherosa Ziehau 	}
171876fbb0b9SSepherosa Ziehau }
171976fbb0b9SSepherosa Ziehau 
172076fbb0b9SSepherosa Ziehau static void
172176fbb0b9SSepherosa Ziehau jme_watchdog(struct ifnet *ifp)
172276fbb0b9SSepherosa Ziehau {
172376fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
172476fbb0b9SSepherosa Ziehau 
172531f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
172676fbb0b9SSepherosa Ziehau 
1727*cccc3955SSepherosa Ziehau 	if (!sc->jme_has_link) {
172876fbb0b9SSepherosa Ziehau 		if_printf(ifp, "watchdog timeout (missed link)\n");
172976fbb0b9SSepherosa Ziehau 		ifp->if_oerrors++;
173076fbb0b9SSepherosa Ziehau 		jme_init(sc);
173176fbb0b9SSepherosa Ziehau 		return;
173276fbb0b9SSepherosa Ziehau 	}
173376fbb0b9SSepherosa Ziehau 
173476fbb0b9SSepherosa Ziehau 	jme_txeof(sc);
173576fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_cnt == 0) {
173676fbb0b9SSepherosa Ziehau 		if_printf(ifp, "watchdog timeout (missed Tx interrupts) "
173776fbb0b9SSepherosa Ziehau 			  "-- recovering\n");
173876fbb0b9SSepherosa Ziehau 		if (!ifq_is_empty(&ifp->if_snd))
173976fbb0b9SSepherosa Ziehau 			if_devstart(ifp);
174076fbb0b9SSepherosa Ziehau 		return;
174176fbb0b9SSepherosa Ziehau 	}
174276fbb0b9SSepherosa Ziehau 
174376fbb0b9SSepherosa Ziehau 	if_printf(ifp, "watchdog timeout\n");
174476fbb0b9SSepherosa Ziehau 	ifp->if_oerrors++;
174576fbb0b9SSepherosa Ziehau 	jme_init(sc);
174676fbb0b9SSepherosa Ziehau 	if (!ifq_is_empty(&ifp->if_snd))
174776fbb0b9SSepherosa Ziehau 		if_devstart(ifp);
174876fbb0b9SSepherosa Ziehau }
174976fbb0b9SSepherosa Ziehau 
175076fbb0b9SSepherosa Ziehau static int
175176fbb0b9SSepherosa Ziehau jme_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *cr)
175276fbb0b9SSepherosa Ziehau {
175376fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
175476fbb0b9SSepherosa Ziehau 	struct mii_data *mii = device_get_softc(sc->jme_miibus);
175576fbb0b9SSepherosa Ziehau 	struct ifreq *ifr = (struct ifreq *)data;
175676fbb0b9SSepherosa Ziehau 	int error = 0, mask;
175776fbb0b9SSepherosa Ziehau 
175831f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
175976fbb0b9SSepherosa Ziehau 
176076fbb0b9SSepherosa Ziehau 	switch (cmd) {
176176fbb0b9SSepherosa Ziehau 	case SIOCSIFMTU:
176276fbb0b9SSepherosa Ziehau 		if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > JME_JUMBO_MTU ||
17633a5f3f36SSepherosa Ziehau 		    (!(sc->jme_caps & JME_CAP_JUMBO) &&
176476fbb0b9SSepherosa Ziehau 		     ifr->ifr_mtu > JME_MAX_MTU)) {
176576fbb0b9SSepherosa Ziehau 			error = EINVAL;
176676fbb0b9SSepherosa Ziehau 			break;
176776fbb0b9SSepherosa Ziehau 		}
176876fbb0b9SSepherosa Ziehau 
176976fbb0b9SSepherosa Ziehau 		if (ifp->if_mtu != ifr->ifr_mtu) {
177076fbb0b9SSepherosa Ziehau 			/*
177176fbb0b9SSepherosa Ziehau 			 * No special configuration is required when interface
177276fbb0b9SSepherosa Ziehau 			 * MTU is changed but availability of Tx checksum
177376fbb0b9SSepherosa Ziehau 			 * offload should be chcked against new MTU size as
177476fbb0b9SSepherosa Ziehau 			 * FIFO size is just 2K.
177576fbb0b9SSepherosa Ziehau 			 */
177676fbb0b9SSepherosa Ziehau 			if (ifr->ifr_mtu >= JME_TX_FIFO_SIZE) {
177776fbb0b9SSepherosa Ziehau 				ifp->if_capenable &= ~IFCAP_TXCSUM;
177876fbb0b9SSepherosa Ziehau 				ifp->if_hwassist &= ~JME_CSUM_FEATURES;
177976fbb0b9SSepherosa Ziehau 			}
178076fbb0b9SSepherosa Ziehau 			ifp->if_mtu = ifr->ifr_mtu;
178176fbb0b9SSepherosa Ziehau 			if (ifp->if_flags & IFF_RUNNING)
178276fbb0b9SSepherosa Ziehau 				jme_init(sc);
178376fbb0b9SSepherosa Ziehau 		}
178476fbb0b9SSepherosa Ziehau 		break;
178576fbb0b9SSepherosa Ziehau 
178676fbb0b9SSepherosa Ziehau 	case SIOCSIFFLAGS:
178776fbb0b9SSepherosa Ziehau 		if (ifp->if_flags & IFF_UP) {
178876fbb0b9SSepherosa Ziehau 			if (ifp->if_flags & IFF_RUNNING) {
178976fbb0b9SSepherosa Ziehau 				if ((ifp->if_flags ^ sc->jme_if_flags) &
179076fbb0b9SSepherosa Ziehau 				    (IFF_PROMISC | IFF_ALLMULTI))
179176fbb0b9SSepherosa Ziehau 					jme_set_filter(sc);
179276fbb0b9SSepherosa Ziehau 			} else {
179376fbb0b9SSepherosa Ziehau 				jme_init(sc);
179476fbb0b9SSepherosa Ziehau 			}
179576fbb0b9SSepherosa Ziehau 		} else {
179676fbb0b9SSepherosa Ziehau 			if (ifp->if_flags & IFF_RUNNING)
179776fbb0b9SSepherosa Ziehau 				jme_stop(sc);
179876fbb0b9SSepherosa Ziehau 		}
179976fbb0b9SSepherosa Ziehau 		sc->jme_if_flags = ifp->if_flags;
180076fbb0b9SSepherosa Ziehau 		break;
180176fbb0b9SSepherosa Ziehau 
180276fbb0b9SSepherosa Ziehau 	case SIOCADDMULTI:
180376fbb0b9SSepherosa Ziehau 	case SIOCDELMULTI:
180476fbb0b9SSepherosa Ziehau 		if (ifp->if_flags & IFF_RUNNING)
180576fbb0b9SSepherosa Ziehau 			jme_set_filter(sc);
180676fbb0b9SSepherosa Ziehau 		break;
180776fbb0b9SSepherosa Ziehau 
180876fbb0b9SSepherosa Ziehau 	case SIOCSIFMEDIA:
180976fbb0b9SSepherosa Ziehau 	case SIOCGIFMEDIA:
181076fbb0b9SSepherosa Ziehau 		error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd);
181176fbb0b9SSepherosa Ziehau 		break;
181276fbb0b9SSepherosa Ziehau 
181376fbb0b9SSepherosa Ziehau 	case SIOCSIFCAP:
181476fbb0b9SSepherosa Ziehau 		mask = ifr->ifr_reqcap ^ ifp->if_capenable;
181576fbb0b9SSepherosa Ziehau 
181676fbb0b9SSepherosa Ziehau 		if ((mask & IFCAP_TXCSUM) && ifp->if_mtu < JME_TX_FIFO_SIZE) {
181776fbb0b9SSepherosa Ziehau 			ifp->if_capenable ^= IFCAP_TXCSUM;
181876fbb0b9SSepherosa Ziehau 			if (IFCAP_TXCSUM & ifp->if_capenable)
181976fbb0b9SSepherosa Ziehau 				ifp->if_hwassist |= JME_CSUM_FEATURES;
182076fbb0b9SSepherosa Ziehau 			else
182176fbb0b9SSepherosa Ziehau 				ifp->if_hwassist &= ~JME_CSUM_FEATURES;
182276fbb0b9SSepherosa Ziehau 		}
1823e4616e94SSepherosa Ziehau 		if (mask & IFCAP_RXCSUM) {
182476fbb0b9SSepherosa Ziehau 			uint32_t reg;
182576fbb0b9SSepherosa Ziehau 
182676fbb0b9SSepherosa Ziehau 			ifp->if_capenable ^= IFCAP_RXCSUM;
182776fbb0b9SSepherosa Ziehau 			reg = CSR_READ_4(sc, JME_RXMAC);
182876fbb0b9SSepherosa Ziehau 			reg &= ~RXMAC_CSUM_ENB;
182976fbb0b9SSepherosa Ziehau 			if (ifp->if_capenable & IFCAP_RXCSUM)
183076fbb0b9SSepherosa Ziehau 				reg |= RXMAC_CSUM_ENB;
183176fbb0b9SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXMAC, reg);
183276fbb0b9SSepherosa Ziehau 		}
183376fbb0b9SSepherosa Ziehau 
1834e4616e94SSepherosa Ziehau 		if (mask & IFCAP_VLAN_HWTAGGING) {
183576fbb0b9SSepherosa Ziehau 			ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
183676fbb0b9SSepherosa Ziehau 			jme_set_vlan(sc);
183776fbb0b9SSepherosa Ziehau 		}
1838e4616e94SSepherosa Ziehau 
18399f20b7b3SSepherosa Ziehau 		if (mask & IFCAP_RSS)
1840d585233cSSepherosa Ziehau 			ifp->if_capenable ^= IFCAP_RSS;
184176fbb0b9SSepherosa Ziehau 		break;
184276fbb0b9SSepherosa Ziehau 
184376fbb0b9SSepherosa Ziehau 	default:
184476fbb0b9SSepherosa Ziehau 		error = ether_ioctl(ifp, cmd, data);
184576fbb0b9SSepherosa Ziehau 		break;
184676fbb0b9SSepherosa Ziehau 	}
184776fbb0b9SSepherosa Ziehau 	return (error);
184876fbb0b9SSepherosa Ziehau }
184976fbb0b9SSepherosa Ziehau 
185076fbb0b9SSepherosa Ziehau static void
185176fbb0b9SSepherosa Ziehau jme_mac_config(struct jme_softc *sc)
185276fbb0b9SSepherosa Ziehau {
185376fbb0b9SSepherosa Ziehau 	struct mii_data *mii;
18543b3da110SSepherosa Ziehau 	uint32_t ghc, rxmac, txmac, txpause, gp1;
18553b3da110SSepherosa Ziehau 	int phyconf = JMPHY_CONF_DEFFIFO, hdx = 0;
185676fbb0b9SSepherosa Ziehau 
185776fbb0b9SSepherosa Ziehau 	mii = device_get_softc(sc->jme_miibus);
185876fbb0b9SSepherosa Ziehau 
185976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
186076fbb0b9SSepherosa Ziehau 	DELAY(10);
186176fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, 0);
186276fbb0b9SSepherosa Ziehau 	ghc = 0;
186376fbb0b9SSepherosa Ziehau 	rxmac = CSR_READ_4(sc, JME_RXMAC);
186476fbb0b9SSepherosa Ziehau 	rxmac &= ~RXMAC_FC_ENB;
186576fbb0b9SSepherosa Ziehau 	txmac = CSR_READ_4(sc, JME_TXMAC);
186676fbb0b9SSepherosa Ziehau 	txmac &= ~(TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST);
186776fbb0b9SSepherosa Ziehau 	txpause = CSR_READ_4(sc, JME_TXPFC);
186876fbb0b9SSepherosa Ziehau 	txpause &= ~TXPFC_PAUSE_ENB;
186976fbb0b9SSepherosa Ziehau 	if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
187076fbb0b9SSepherosa Ziehau 		ghc |= GHC_FULL_DUPLEX;
187176fbb0b9SSepherosa Ziehau 		rxmac &= ~RXMAC_COLL_DET_ENB;
187276fbb0b9SSepherosa Ziehau 		txmac &= ~(TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE |
187376fbb0b9SSepherosa Ziehau 		    TXMAC_BACKOFF | TXMAC_CARRIER_EXT |
187476fbb0b9SSepherosa Ziehau 		    TXMAC_FRAME_BURST);
187576fbb0b9SSepherosa Ziehau #ifdef notyet
187676fbb0b9SSepherosa Ziehau 		if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
187776fbb0b9SSepherosa Ziehau 			txpause |= TXPFC_PAUSE_ENB;
187876fbb0b9SSepherosa Ziehau 		if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
187976fbb0b9SSepherosa Ziehau 			rxmac |= RXMAC_FC_ENB;
188076fbb0b9SSepherosa Ziehau #endif
188176fbb0b9SSepherosa Ziehau 		/* Disable retry transmit timer/retry limit. */
188276fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXTRHD, CSR_READ_4(sc, JME_TXTRHD) &
188376fbb0b9SSepherosa Ziehau 		    ~(TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB));
188476fbb0b9SSepherosa Ziehau 	} else {
188576fbb0b9SSepherosa Ziehau 		rxmac |= RXMAC_COLL_DET_ENB;
188676fbb0b9SSepherosa Ziehau 		txmac |= TXMAC_COLL_ENB | TXMAC_CARRIER_SENSE | TXMAC_BACKOFF;
188776fbb0b9SSepherosa Ziehau 		/* Enable retry transmit timer/retry limit. */
188876fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_TXTRHD, CSR_READ_4(sc, JME_TXTRHD) |
188976fbb0b9SSepherosa Ziehau 		    TXTRHD_RT_PERIOD_ENB | TXTRHD_RT_LIMIT_ENB);
189076fbb0b9SSepherosa Ziehau 	}
189176fbb0b9SSepherosa Ziehau 
18923b3da110SSepherosa Ziehau 	/*
18933b3da110SSepherosa Ziehau 	 * Reprogram Tx/Rx MACs with resolved speed/duplex.
18943b3da110SSepherosa Ziehau 	 */
18953b3da110SSepherosa Ziehau 	gp1 = CSR_READ_4(sc, JME_GPREG1);
18963b3da110SSepherosa Ziehau 	gp1 &= ~GPREG1_WA_HDX;
18973b3da110SSepherosa Ziehau 
18983b3da110SSepherosa Ziehau 	if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) == 0)
18993b3da110SSepherosa Ziehau 		hdx = 1;
19003b3da110SSepherosa Ziehau 
190176fbb0b9SSepherosa Ziehau 	switch (IFM_SUBTYPE(mii->mii_media_active)) {
190276fbb0b9SSepherosa Ziehau 	case IFM_10_T:
1903b249905bSSepherosa Ziehau 		ghc |= GHC_SPEED_10 | sc->jme_clksrc;
19043b3da110SSepherosa Ziehau 		if (hdx)
19053b3da110SSepherosa Ziehau 			gp1 |= GPREG1_WA_HDX;
190676fbb0b9SSepherosa Ziehau 		break;
1907dbe37f03SSepherosa Ziehau 
190876fbb0b9SSepherosa Ziehau 	case IFM_100_TX:
1909b249905bSSepherosa Ziehau 		ghc |= GHC_SPEED_100 | sc->jme_clksrc;
19103b3da110SSepherosa Ziehau 		if (hdx)
19113b3da110SSepherosa Ziehau 			gp1 |= GPREG1_WA_HDX;
1912dbe37f03SSepherosa Ziehau 
1913dbe37f03SSepherosa Ziehau 		/*
1914dbe37f03SSepherosa Ziehau 		 * Use extended FIFO depth to workaround CRC errors
1915dbe37f03SSepherosa Ziehau 		 * emitted by chips before JMC250B
1916dbe37f03SSepherosa Ziehau 		 */
1917dbe37f03SSepherosa Ziehau 		phyconf = JMPHY_CONF_EXTFIFO;
191876fbb0b9SSepherosa Ziehau 		break;
1919dbe37f03SSepherosa Ziehau 
192076fbb0b9SSepherosa Ziehau 	case IFM_1000_T:
1921ec7e787bSSepherosa Ziehau 		if (sc->jme_caps & JME_CAP_FASTETH)
192276fbb0b9SSepherosa Ziehau 			break;
1923dbe37f03SSepherosa Ziehau 
1924b249905bSSepherosa Ziehau 		ghc |= GHC_SPEED_1000 | sc->jme_clksrc_1000;
19253b3da110SSepherosa Ziehau 		if (hdx)
192676fbb0b9SSepherosa Ziehau 			txmac |= TXMAC_CARRIER_EXT | TXMAC_FRAME_BURST;
192776fbb0b9SSepherosa Ziehau 		break;
1928dbe37f03SSepherosa Ziehau 
192976fbb0b9SSepherosa Ziehau 	default:
193076fbb0b9SSepherosa Ziehau 		break;
193176fbb0b9SSepherosa Ziehau 	}
193276fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, ghc);
193376fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXMAC, rxmac);
193476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXMAC, txmac);
193576fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXPFC, txpause);
1936dbe37f03SSepherosa Ziehau 
1937ad22907fSSepherosa Ziehau 	if (sc->jme_workaround & JME_WA_EXTFIFO) {
1938dbe37f03SSepherosa Ziehau 		jme_miibus_writereg(sc->jme_dev, sc->jme_phyaddr,
1939dbe37f03SSepherosa Ziehau 				    JMPHY_CONF, phyconf);
1940dbe37f03SSepherosa Ziehau 	}
19413b3da110SSepherosa Ziehau 	if (sc->jme_workaround & JME_WA_HDX)
19423b3da110SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_GPREG1, gp1);
194376fbb0b9SSepherosa Ziehau }
194476fbb0b9SSepherosa Ziehau 
194576fbb0b9SSepherosa Ziehau static void
194676fbb0b9SSepherosa Ziehau jme_intr(void *xsc)
194776fbb0b9SSepherosa Ziehau {
194876fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = xsc;
194976fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
195076fbb0b9SSepherosa Ziehau 	uint32_t status;
19514447c752SSepherosa Ziehau 	int r;
195276fbb0b9SSepherosa Ziehau 
195331f0d5a2SSepherosa Ziehau 	ASSERT_SERIALIZED(&sc->jme_serialize);
195476fbb0b9SSepherosa Ziehau 
195576fbb0b9SSepherosa Ziehau 	status = CSR_READ_4(sc, JME_INTR_REQ_STATUS);
195676fbb0b9SSepherosa Ziehau 	if (status == 0 || status == 0xFFFFFFFF)
195776fbb0b9SSepherosa Ziehau 		return;
195876fbb0b9SSepherosa Ziehau 
195976fbb0b9SSepherosa Ziehau 	/* Disable interrupts. */
196076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
196176fbb0b9SSepherosa Ziehau 
196276fbb0b9SSepherosa Ziehau 	status = CSR_READ_4(sc, JME_INTR_STATUS);
196376fbb0b9SSepherosa Ziehau 	if ((status & JME_INTRS) == 0 || status == 0xFFFFFFFF)
196476fbb0b9SSepherosa Ziehau 		goto back;
196576fbb0b9SSepherosa Ziehau 
196676fbb0b9SSepherosa Ziehau 	/* Reset PCC counter/timer and Ack interrupts. */
196776fbb0b9SSepherosa Ziehau 	status &= ~(INTR_TXQ_COMP | INTR_RXQ_COMP);
19684447c752SSepherosa Ziehau 
196976fbb0b9SSepherosa Ziehau 	if (status & (INTR_TXQ_COAL | INTR_TXQ_COAL_TO))
197076fbb0b9SSepherosa Ziehau 		status |= INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP;
19714447c752SSepherosa Ziehau 
19727b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
19734447c752SSepherosa Ziehau 		if (status & jme_rx_status[r].jme_coal) {
19744447c752SSepherosa Ziehau 			status |= jme_rx_status[r].jme_coal |
19754447c752SSepherosa Ziehau 				  jme_rx_status[r].jme_comp;
19764447c752SSepherosa Ziehau 		}
19774447c752SSepherosa Ziehau 	}
19784447c752SSepherosa Ziehau 
197976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_STATUS, status);
198076fbb0b9SSepherosa Ziehau 
198176fbb0b9SSepherosa Ziehau 	if (ifp->if_flags & IFF_RUNNING) {
198276fbb0b9SSepherosa Ziehau 		if (status & (INTR_RXQ_COAL | INTR_RXQ_COAL_TO))
19834447c752SSepherosa Ziehau 			jme_rx_intr(sc, status);
198476fbb0b9SSepherosa Ziehau 
198576fbb0b9SSepherosa Ziehau 		if (status & INTR_RXQ_DESC_EMPTY) {
198676fbb0b9SSepherosa Ziehau 			/*
198776fbb0b9SSepherosa Ziehau 			 * Notify hardware availability of new Rx buffers.
198876fbb0b9SSepherosa Ziehau 			 * Reading RXCSR takes very long time under heavy
198976fbb0b9SSepherosa Ziehau 			 * load so cache RXCSR value and writes the ORed
199076fbb0b9SSepherosa Ziehau 			 * value with the kick command to the RXCSR. This
199176fbb0b9SSepherosa Ziehau 			 * saves one register access cycle.
199276fbb0b9SSepherosa Ziehau 			 */
199376fbb0b9SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr |
199476fbb0b9SSepherosa Ziehau 			    RXCSR_RX_ENB | RXCSR_RXQ_START);
199576fbb0b9SSepherosa Ziehau 		}
199676fbb0b9SSepherosa Ziehau 
199776fbb0b9SSepherosa Ziehau 		if (status & (INTR_TXQ_COAL | INTR_TXQ_COAL_TO)) {
199831f0d5a2SSepherosa Ziehau 			lwkt_serialize_enter(&sc->jme_cdata.jme_tx_serialize);
199976fbb0b9SSepherosa Ziehau 			jme_txeof(sc);
200076fbb0b9SSepherosa Ziehau 			if (!ifq_is_empty(&ifp->if_snd))
200176fbb0b9SSepherosa Ziehau 				if_devstart(ifp);
200231f0d5a2SSepherosa Ziehau 			lwkt_serialize_exit(&sc->jme_cdata.jme_tx_serialize);
200376fbb0b9SSepherosa Ziehau 		}
200476fbb0b9SSepherosa Ziehau 	}
200576fbb0b9SSepherosa Ziehau back:
200676fbb0b9SSepherosa Ziehau 	/* Reenable interrupts. */
200776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
200876fbb0b9SSepherosa Ziehau }
200976fbb0b9SSepherosa Ziehau 
201076fbb0b9SSepherosa Ziehau static void
201176fbb0b9SSepherosa Ziehau jme_txeof(struct jme_softc *sc)
201276fbb0b9SSepherosa Ziehau {
201376fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
20146960d7d2SSepherosa Ziehau 	int cons;
201576fbb0b9SSepherosa Ziehau 
201676fbb0b9SSepherosa Ziehau 	cons = sc->jme_cdata.jme_tx_cons;
201776fbb0b9SSepherosa Ziehau 	if (cons == sc->jme_cdata.jme_tx_prod)
201876fbb0b9SSepherosa Ziehau 		return;
201976fbb0b9SSepherosa Ziehau 
202076fbb0b9SSepherosa Ziehau 	/*
202176fbb0b9SSepherosa Ziehau 	 * Go through our Tx list and free mbufs for those
202276fbb0b9SSepherosa Ziehau 	 * frames which have been transmitted.
202376fbb0b9SSepherosa Ziehau 	 */
202476fbb0b9SSepherosa Ziehau 	while (cons != sc->jme_cdata.jme_tx_prod) {
20256960d7d2SSepherosa Ziehau 		struct jme_txdesc *txd, *next_txd;
20266960d7d2SSepherosa Ziehau 		uint32_t status, next_status;
20276960d7d2SSepherosa Ziehau 		int next_cons, nsegs;
20286960d7d2SSepherosa Ziehau 
202976fbb0b9SSepherosa Ziehau 		txd = &sc->jme_cdata.jme_txdesc[cons];
203076fbb0b9SSepherosa Ziehau 		KASSERT(txd->tx_m != NULL,
2031ed20d0e3SSascha Wildner 			("%s: freeing NULL mbuf!", __func__));
203276fbb0b9SSepherosa Ziehau 
203376fbb0b9SSepherosa Ziehau 		status = le32toh(txd->tx_desc->flags);
203476fbb0b9SSepherosa Ziehau 		if ((status & JME_TD_OWN) == JME_TD_OWN)
203576fbb0b9SSepherosa Ziehau 			break;
203676fbb0b9SSepherosa Ziehau 
20376960d7d2SSepherosa Ziehau 		/*
20386960d7d2SSepherosa Ziehau 		 * NOTE:
20396960d7d2SSepherosa Ziehau 		 * This chip will always update the TX descriptor's
20406960d7d2SSepherosa Ziehau 		 * buflen field and this updating always happens
20416960d7d2SSepherosa Ziehau 		 * after clearing the OWN bit, so even if the OWN
20426960d7d2SSepherosa Ziehau 		 * bit is cleared by the chip, we still don't sure
20436960d7d2SSepherosa Ziehau 		 * about whether the buflen field has been updated
20446960d7d2SSepherosa Ziehau 		 * by the chip or not.  To avoid this race, we wait
20456960d7d2SSepherosa Ziehau 		 * for the next TX descriptor's OWN bit to be cleared
20466960d7d2SSepherosa Ziehau 		 * by the chip before reusing this TX descriptor.
20476960d7d2SSepherosa Ziehau 		 */
20486960d7d2SSepherosa Ziehau 		next_cons = cons;
20496960d7d2SSepherosa Ziehau 		JME_DESC_ADD(next_cons, txd->tx_ndesc,
20506960d7d2SSepherosa Ziehau 		    sc->jme_cdata.jme_tx_desc_cnt);
20516960d7d2SSepherosa Ziehau 		next_txd = &sc->jme_cdata.jme_txdesc[next_cons];
20526960d7d2SSepherosa Ziehau 		if (next_txd->tx_m == NULL)
20536960d7d2SSepherosa Ziehau 			break;
20546960d7d2SSepherosa Ziehau 		next_status = le32toh(next_txd->tx_desc->flags);
20556960d7d2SSepherosa Ziehau 		if ((next_status & JME_TD_OWN) == JME_TD_OWN)
20566960d7d2SSepherosa Ziehau 			break;
20576960d7d2SSepherosa Ziehau 
205876fbb0b9SSepherosa Ziehau 		if (status & (JME_TD_TMOUT | JME_TD_RETRY_EXP)) {
205976fbb0b9SSepherosa Ziehau 			ifp->if_oerrors++;
206076fbb0b9SSepherosa Ziehau 		} else {
206176fbb0b9SSepherosa Ziehau 			ifp->if_opackets++;
206276fbb0b9SSepherosa Ziehau 			if (status & JME_TD_COLLISION) {
206376fbb0b9SSepherosa Ziehau 				ifp->if_collisions +=
206476fbb0b9SSepherosa Ziehau 				    le32toh(txd->tx_desc->buflen) &
206576fbb0b9SSepherosa Ziehau 				    JME_TD_BUF_LEN_MASK;
206676fbb0b9SSepherosa Ziehau 			}
206776fbb0b9SSepherosa Ziehau 		}
206876fbb0b9SSepherosa Ziehau 
206976fbb0b9SSepherosa Ziehau 		/*
207076fbb0b9SSepherosa Ziehau 		 * Only the first descriptor of multi-descriptor
207176fbb0b9SSepherosa Ziehau 		 * transmission is updated so driver have to skip entire
207276fbb0b9SSepherosa Ziehau 		 * chained buffers for the transmiited frame. In other
207376fbb0b9SSepherosa Ziehau 		 * words, JME_TD_OWN bit is valid only at the first
207476fbb0b9SSepherosa Ziehau 		 * descriptor of a multi-descriptor transmission.
207576fbb0b9SSepherosa Ziehau 		 */
207676fbb0b9SSepherosa Ziehau 		for (nsegs = 0; nsegs < txd->tx_ndesc; nsegs++) {
2077560616bfSSepherosa Ziehau 			sc->jme_cdata.jme_tx_ring[cons].flags = 0;
2078b020bb10SSepherosa Ziehau 			JME_DESC_INC(cons, sc->jme_cdata.jme_tx_desc_cnt);
207976fbb0b9SSepherosa Ziehau 		}
208076fbb0b9SSepherosa Ziehau 
208176fbb0b9SSepherosa Ziehau 		/* Reclaim transferred mbufs. */
208276fbb0b9SSepherosa Ziehau 		bus_dmamap_unload(sc->jme_cdata.jme_tx_tag, txd->tx_dmamap);
208376fbb0b9SSepherosa Ziehau 		m_freem(txd->tx_m);
208476fbb0b9SSepherosa Ziehau 		txd->tx_m = NULL;
208576fbb0b9SSepherosa Ziehau 		sc->jme_cdata.jme_tx_cnt -= txd->tx_ndesc;
208676fbb0b9SSepherosa Ziehau 		KASSERT(sc->jme_cdata.jme_tx_cnt >= 0,
2087ed20d0e3SSascha Wildner 			("%s: Active Tx desc counter was garbled", __func__));
208876fbb0b9SSepherosa Ziehau 		txd->tx_ndesc = 0;
208976fbb0b9SSepherosa Ziehau 	}
209076fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_cons = cons;
209176fbb0b9SSepherosa Ziehau 
20926960d7d2SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_cnt < JME_MAXTXSEGS + 1)
209376fbb0b9SSepherosa Ziehau 		ifp->if_timer = 0;
209476fbb0b9SSepherosa Ziehau 
209576fbb0b9SSepherosa Ziehau 	if (sc->jme_cdata.jme_tx_cnt + sc->jme_txd_spare <=
2096b020bb10SSepherosa Ziehau 	    sc->jme_cdata.jme_tx_desc_cnt - JME_TXD_RSVD)
209776fbb0b9SSepherosa Ziehau 		ifp->if_flags &= ~IFF_OACTIVE;
209876fbb0b9SSepherosa Ziehau }
209976fbb0b9SSepherosa Ziehau 
210076fbb0b9SSepherosa Ziehau static __inline void
2101dea2452aSSepherosa Ziehau jme_discard_rxbufs(struct jme_rxdata *rdata, int cons, int count)
210276fbb0b9SSepherosa Ziehau {
210376fbb0b9SSepherosa Ziehau 	int i;
210476fbb0b9SSepherosa Ziehau 
210576fbb0b9SSepherosa Ziehau 	for (i = 0; i < count; ++i) {
2106fd2a6d2cSSepherosa Ziehau 		jme_setup_rxdesc(&rdata->jme_rxdesc[cons]);
21077b040092SSepherosa Ziehau 		JME_DESC_INC(cons, rdata->jme_rx_desc_cnt);
210876fbb0b9SSepherosa Ziehau 	}
210976fbb0b9SSepherosa Ziehau }
211076fbb0b9SSepherosa Ziehau 
2111a6acc6e2SSepherosa Ziehau static __inline struct pktinfo *
2112a6acc6e2SSepherosa Ziehau jme_pktinfo(struct pktinfo *pi, uint32_t flags)
2113a6acc6e2SSepherosa Ziehau {
2114a6acc6e2SSepherosa Ziehau 	if (flags & JME_RD_IPV4)
2115a6acc6e2SSepherosa Ziehau 		pi->pi_netisr = NETISR_IP;
2116a6acc6e2SSepherosa Ziehau 	else if (flags & JME_RD_IPV6)
2117a6acc6e2SSepherosa Ziehau 		pi->pi_netisr = NETISR_IPV6;
2118a6acc6e2SSepherosa Ziehau 	else
2119a6acc6e2SSepherosa Ziehau 		return NULL;
2120a6acc6e2SSepherosa Ziehau 
2121a6acc6e2SSepherosa Ziehau 	pi->pi_flags = 0;
2122a6acc6e2SSepherosa Ziehau 	pi->pi_l3proto = IPPROTO_UNKNOWN;
2123a6acc6e2SSepherosa Ziehau 
2124a6acc6e2SSepherosa Ziehau 	if (flags & JME_RD_MORE_FRAG)
2125a6acc6e2SSepherosa Ziehau 		pi->pi_flags |= PKTINFO_FLAG_FRAG;
2126a6acc6e2SSepherosa Ziehau 	else if (flags & JME_RD_TCP)
2127a6acc6e2SSepherosa Ziehau 		pi->pi_l3proto = IPPROTO_TCP;
2128a6acc6e2SSepherosa Ziehau 	else if (flags & JME_RD_UDP)
2129a6acc6e2SSepherosa Ziehau 		pi->pi_l3proto = IPPROTO_UDP;
21307345eb80SSepherosa Ziehau 	else
21317345eb80SSepherosa Ziehau 		pi = NULL;
2132a6acc6e2SSepherosa Ziehau 	return pi;
2133a6acc6e2SSepherosa Ziehau }
2134a6acc6e2SSepherosa Ziehau 
213576fbb0b9SSepherosa Ziehau /* Receive a frame. */
213676fbb0b9SSepherosa Ziehau static void
2137dea2452aSSepherosa Ziehau jme_rxpkt(struct jme_rxdata *rdata)
213876fbb0b9SSepherosa Ziehau {
2139dea2452aSSepherosa Ziehau 	struct ifnet *ifp = &rdata->jme_sc->arpcom.ac_if;
214076fbb0b9SSepherosa Ziehau 	struct jme_desc *desc;
214176fbb0b9SSepherosa Ziehau 	struct jme_rxdesc *rxd;
214276fbb0b9SSepherosa Ziehau 	struct mbuf *mp, *m;
2143a6acc6e2SSepherosa Ziehau 	uint32_t flags, status, hash, hashinfo;
214476fbb0b9SSepherosa Ziehau 	int cons, count, nsegs;
214576fbb0b9SSepherosa Ziehau 
21464447c752SSepherosa Ziehau 	cons = rdata->jme_rx_cons;
21474447c752SSepherosa Ziehau 	desc = &rdata->jme_rx_ring[cons];
21489d4f763dSSepherosa Ziehau 
214976fbb0b9SSepherosa Ziehau 	flags = le32toh(desc->flags);
215076fbb0b9SSepherosa Ziehau 	status = le32toh(desc->buflen);
2151a6acc6e2SSepherosa Ziehau 	hash = le32toh(desc->addr_hi);
2152a6acc6e2SSepherosa Ziehau 	hashinfo = le32toh(desc->addr_lo);
215376fbb0b9SSepherosa Ziehau 	nsegs = JME_RX_NSEGS(status);
215476fbb0b9SSepherosa Ziehau 
21559d4f763dSSepherosa Ziehau 	if (nsegs > 1) {
21569d4f763dSSepherosa Ziehau 		/* Skip the first descriptor. */
21579d4f763dSSepherosa Ziehau 		JME_DESC_INC(cons, rdata->jme_rx_desc_cnt);
21589d4f763dSSepherosa Ziehau 
21599d4f763dSSepherosa Ziehau 		/*
21609d4f763dSSepherosa Ziehau 		 * Clear the OWN bit of the following RX descriptors;
21619d4f763dSSepherosa Ziehau 		 * hardware will not clear the OWN bit except the first
21629d4f763dSSepherosa Ziehau 		 * RX descriptor.
21639d4f763dSSepherosa Ziehau 		 *
21649d4f763dSSepherosa Ziehau 		 * Since the first RX descriptor is setup, i.e. OWN bit
21659d4f763dSSepherosa Ziehau 		 * on, before its followins RX descriptors, leaving the
21669d4f763dSSepherosa Ziehau 		 * OWN bit on the following RX descriptors will trick
21679d4f763dSSepherosa Ziehau 		 * the hardware into thinking that the following RX
21689d4f763dSSepherosa Ziehau 		 * descriptors are ready to be used too.
21699d4f763dSSepherosa Ziehau 		 */
21709d4f763dSSepherosa Ziehau 		for (count = 1; count < nsegs; count++,
21719d4f763dSSepherosa Ziehau 		     JME_DESC_INC(cons, rdata->jme_rx_desc_cnt))
21729d4f763dSSepherosa Ziehau 			rdata->jme_rx_ring[cons].flags = 0;
21739d4f763dSSepherosa Ziehau 
21749d4f763dSSepherosa Ziehau 		cons = rdata->jme_rx_cons;
21759d4f763dSSepherosa Ziehau 	}
21769d4f763dSSepherosa Ziehau 
21777b040092SSepherosa Ziehau 	JME_RSS_DPRINTF(rdata->jme_sc, 15, "ring%d, flags 0x%08x, "
2178a6acc6e2SSepherosa Ziehau 			"hash 0x%08x, hash info 0x%08x\n",
21797b040092SSepherosa Ziehau 			rdata->jme_rx_idx, flags, hash, hashinfo);
2180760c056cSSepherosa Ziehau 
218176fbb0b9SSepherosa Ziehau 	if (status & JME_RX_ERR_STAT) {
218276fbb0b9SSepherosa Ziehau 		ifp->if_ierrors++;
2183dea2452aSSepherosa Ziehau 		jme_discard_rxbufs(rdata, cons, nsegs);
218476fbb0b9SSepherosa Ziehau #ifdef JME_SHOW_ERRORS
21857b040092SSepherosa Ziehau 		if_printf(ifp, "%s : receive error = 0x%b\n",
218676fbb0b9SSepherosa Ziehau 		    __func__, JME_RX_ERR(status), JME_RX_ERR_BITS);
218776fbb0b9SSepherosa Ziehau #endif
21884447c752SSepherosa Ziehau 		rdata->jme_rx_cons += nsegs;
21897b040092SSepherosa Ziehau 		rdata->jme_rx_cons %= rdata->jme_rx_desc_cnt;
219076fbb0b9SSepherosa Ziehau 		return;
219176fbb0b9SSepherosa Ziehau 	}
219276fbb0b9SSepherosa Ziehau 
21934447c752SSepherosa Ziehau 	rdata->jme_rxlen = JME_RX_BYTES(status) - JME_RX_PAD_BYTES;
219476fbb0b9SSepherosa Ziehau 	for (count = 0; count < nsegs; count++,
21957b040092SSepherosa Ziehau 	     JME_DESC_INC(cons, rdata->jme_rx_desc_cnt)) {
21964447c752SSepherosa Ziehau 		rxd = &rdata->jme_rxdesc[cons];
219776fbb0b9SSepherosa Ziehau 		mp = rxd->rx_m;
219876fbb0b9SSepherosa Ziehau 
219976fbb0b9SSepherosa Ziehau 		/* Add a new receive buffer to the ring. */
2200dea2452aSSepherosa Ziehau 		if (jme_newbuf(rdata, rxd, 0) != 0) {
220176fbb0b9SSepherosa Ziehau 			ifp->if_iqdrops++;
220276fbb0b9SSepherosa Ziehau 			/* Reuse buffer. */
2203dea2452aSSepherosa Ziehau 			jme_discard_rxbufs(rdata, cons, nsegs - count);
22044447c752SSepherosa Ziehau 			if (rdata->jme_rxhead != NULL) {
22054447c752SSepherosa Ziehau 				m_freem(rdata->jme_rxhead);
2206dea2452aSSepherosa Ziehau 				JME_RXCHAIN_RESET(rdata);
220776fbb0b9SSepherosa Ziehau 			}
220876fbb0b9SSepherosa Ziehau 			break;
220976fbb0b9SSepherosa Ziehau 		}
221076fbb0b9SSepherosa Ziehau 
221176fbb0b9SSepherosa Ziehau 		/*
221276fbb0b9SSepherosa Ziehau 		 * Assume we've received a full sized frame.
221376fbb0b9SSepherosa Ziehau 		 * Actual size is fixed when we encounter the end of
221476fbb0b9SSepherosa Ziehau 		 * multi-segmented frame.
221576fbb0b9SSepherosa Ziehau 		 */
221676fbb0b9SSepherosa Ziehau 		mp->m_len = MCLBYTES;
221776fbb0b9SSepherosa Ziehau 
221876fbb0b9SSepherosa Ziehau 		/* Chain received mbufs. */
22194447c752SSepherosa Ziehau 		if (rdata->jme_rxhead == NULL) {
22204447c752SSepherosa Ziehau 			rdata->jme_rxhead = mp;
22214447c752SSepherosa Ziehau 			rdata->jme_rxtail = mp;
222276fbb0b9SSepherosa Ziehau 		} else {
222376fbb0b9SSepherosa Ziehau 			/*
222476fbb0b9SSepherosa Ziehau 			 * Receive processor can receive a maximum frame
222576fbb0b9SSepherosa Ziehau 			 * size of 65535 bytes.
222676fbb0b9SSepherosa Ziehau 			 */
22274447c752SSepherosa Ziehau 			rdata->jme_rxtail->m_next = mp;
22284447c752SSepherosa Ziehau 			rdata->jme_rxtail = mp;
222976fbb0b9SSepherosa Ziehau 		}
223076fbb0b9SSepherosa Ziehau 
223176fbb0b9SSepherosa Ziehau 		if (count == nsegs - 1) {
2232a6acc6e2SSepherosa Ziehau 			struct pktinfo pi0, *pi;
2233a6acc6e2SSepherosa Ziehau 
223476fbb0b9SSepherosa Ziehau 			/* Last desc. for this frame. */
22354447c752SSepherosa Ziehau 			m = rdata->jme_rxhead;
22364447c752SSepherosa Ziehau 			m->m_pkthdr.len = rdata->jme_rxlen;
223776fbb0b9SSepherosa Ziehau 			if (nsegs > 1) {
223876fbb0b9SSepherosa Ziehau 				/* Set first mbuf size. */
223976fbb0b9SSepherosa Ziehau 				m->m_len = MCLBYTES - JME_RX_PAD_BYTES;
224076fbb0b9SSepherosa Ziehau 				/* Set last mbuf size. */
22414447c752SSepherosa Ziehau 				mp->m_len = rdata->jme_rxlen -
224276fbb0b9SSepherosa Ziehau 				    ((MCLBYTES - JME_RX_PAD_BYTES) +
224376fbb0b9SSepherosa Ziehau 				    (MCLBYTES * (nsegs - 2)));
224476fbb0b9SSepherosa Ziehau 			} else {
22454447c752SSepherosa Ziehau 				m->m_len = rdata->jme_rxlen;
224676fbb0b9SSepherosa Ziehau 			}
224776fbb0b9SSepherosa Ziehau 			m->m_pkthdr.rcvif = ifp;
224876fbb0b9SSepherosa Ziehau 
224976fbb0b9SSepherosa Ziehau 			/*
225076fbb0b9SSepherosa Ziehau 			 * Account for 10bytes auto padding which is used
225176fbb0b9SSepherosa Ziehau 			 * to align IP header on 32bit boundary. Also note,
225276fbb0b9SSepherosa Ziehau 			 * CRC bytes is automatically removed by the
225376fbb0b9SSepherosa Ziehau 			 * hardware.
225476fbb0b9SSepherosa Ziehau 			 */
225576fbb0b9SSepherosa Ziehau 			m->m_data += JME_RX_PAD_BYTES;
225676fbb0b9SSepherosa Ziehau 
225776fbb0b9SSepherosa Ziehau 			/* Set checksum information. */
225876fbb0b9SSepherosa Ziehau 			if ((ifp->if_capenable & IFCAP_RXCSUM) &&
225976fbb0b9SSepherosa Ziehau 			    (flags & JME_RD_IPV4)) {
226076fbb0b9SSepherosa Ziehau 				m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
226176fbb0b9SSepherosa Ziehau 				if (flags & JME_RD_IPCSUM)
226276fbb0b9SSepherosa Ziehau 					m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
226376fbb0b9SSepherosa Ziehau 				if ((flags & JME_RD_MORE_FRAG) == 0 &&
226476fbb0b9SSepherosa Ziehau 				    ((flags & (JME_RD_TCP | JME_RD_TCPCSUM)) ==
226576fbb0b9SSepherosa Ziehau 				     (JME_RD_TCP | JME_RD_TCPCSUM) ||
226676fbb0b9SSepherosa Ziehau 				     (flags & (JME_RD_UDP | JME_RD_UDPCSUM)) ==
226776fbb0b9SSepherosa Ziehau 				     (JME_RD_UDP | JME_RD_UDPCSUM))) {
226876fbb0b9SSepherosa Ziehau 					m->m_pkthdr.csum_flags |=
226976fbb0b9SSepherosa Ziehau 					    CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
227076fbb0b9SSepherosa Ziehau 					m->m_pkthdr.csum_data = 0xffff;
227176fbb0b9SSepherosa Ziehau 				}
227276fbb0b9SSepherosa Ziehau 			}
227376fbb0b9SSepherosa Ziehau 
227476fbb0b9SSepherosa Ziehau 			/* Check for VLAN tagged packets. */
227576fbb0b9SSepherosa Ziehau 			if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) &&
227676fbb0b9SSepherosa Ziehau 			    (flags & JME_RD_VLAN_TAG)) {
227776fbb0b9SSepherosa Ziehau 				m->m_pkthdr.ether_vlantag =
227876fbb0b9SSepherosa Ziehau 				    flags & JME_RD_VLAN_MASK;
227976fbb0b9SSepherosa Ziehau 				m->m_flags |= M_VLANTAG;
228076fbb0b9SSepherosa Ziehau 			}
228176fbb0b9SSepherosa Ziehau 
228276fbb0b9SSepherosa Ziehau 			ifp->if_ipackets++;
2283a6acc6e2SSepherosa Ziehau 
2284a6acc6e2SSepherosa Ziehau 			if (ifp->if_capenable & IFCAP_RSS)
2285a6acc6e2SSepherosa Ziehau 				pi = jme_pktinfo(&pi0, flags);
2286a6acc6e2SSepherosa Ziehau 			else
2287a6acc6e2SSepherosa Ziehau 				pi = NULL;
2288a6acc6e2SSepherosa Ziehau 
2289a6acc6e2SSepherosa Ziehau 			if (pi != NULL &&
2290a6acc6e2SSepherosa Ziehau 			    (hashinfo & JME_RD_HASH_FN_MASK) != 0) {
2291a6acc6e2SSepherosa Ziehau 				m->m_flags |= M_HASH;
2292a6acc6e2SSepherosa Ziehau 				m->m_pkthdr.hash = toeplitz_hash(hash);
2293a6acc6e2SSepherosa Ziehau 			}
2294a6acc6e2SSepherosa Ziehau 
2295a6acc6e2SSepherosa Ziehau #ifdef JME_RSS_DEBUG
2296a6acc6e2SSepherosa Ziehau 			if (pi != NULL) {
22977b040092SSepherosa Ziehau 				JME_RSS_DPRINTF(rdata->jme_sc, 10,
2298a6acc6e2SSepherosa Ziehau 				    "isr %d flags %08x, l3 %d %s\n",
2299a6acc6e2SSepherosa Ziehau 				    pi->pi_netisr, pi->pi_flags,
2300a6acc6e2SSepherosa Ziehau 				    pi->pi_l3proto,
2301a6acc6e2SSepherosa Ziehau 				    (m->m_flags & M_HASH) ? "hash" : "");
2302a6acc6e2SSepherosa Ziehau 			}
2303a6acc6e2SSepherosa Ziehau #endif
2304a6acc6e2SSepherosa Ziehau 
230576fbb0b9SSepherosa Ziehau 			/* Pass it on. */
2306eda7db08SSepherosa Ziehau 			ether_input_pkt(ifp, m, pi);
230776fbb0b9SSepherosa Ziehau 
230876fbb0b9SSepherosa Ziehau 			/* Reset mbuf chains. */
2309dea2452aSSepherosa Ziehau 			JME_RXCHAIN_RESET(rdata);
2310760c056cSSepherosa Ziehau #ifdef JME_RSS_DEBUG
23117b040092SSepherosa Ziehau 			rdata->jme_rx_pkt++;
2312760c056cSSepherosa Ziehau #endif
231376fbb0b9SSepherosa Ziehau 		}
231476fbb0b9SSepherosa Ziehau 	}
231576fbb0b9SSepherosa Ziehau 
23164447c752SSepherosa Ziehau 	rdata->jme_rx_cons += nsegs;
23177b040092SSepherosa Ziehau 	rdata->jme_rx_cons %= rdata->jme_rx_desc_cnt;
231876fbb0b9SSepherosa Ziehau }
231976fbb0b9SSepherosa Ziehau 
2320eda7db08SSepherosa Ziehau static void
2321dea2452aSSepherosa Ziehau jme_rxeof(struct jme_rxdata *rdata, int count)
232276fbb0b9SSepherosa Ziehau {
232376fbb0b9SSepherosa Ziehau 	struct jme_desc *desc;
2324eda7db08SSepherosa Ziehau 	int nsegs, pktlen;
232576fbb0b9SSepherosa Ziehau 
232676fbb0b9SSepherosa Ziehau 	for (;;) {
23273fa06afcSSepherosa Ziehau #ifdef DEVICE_POLLING
23283fa06afcSSepherosa Ziehau 		if (count >= 0 && count-- == 0)
23293fa06afcSSepherosa Ziehau 			break;
23303fa06afcSSepherosa Ziehau #endif
23314447c752SSepherosa Ziehau 		desc = &rdata->jme_rx_ring[rdata->jme_rx_cons];
233276fbb0b9SSepherosa Ziehau 		if ((le32toh(desc->flags) & JME_RD_OWN) == JME_RD_OWN)
233376fbb0b9SSepherosa Ziehau 			break;
233476fbb0b9SSepherosa Ziehau 		if ((le32toh(desc->buflen) & JME_RD_VALID) == 0)
233576fbb0b9SSepherosa Ziehau 			break;
233676fbb0b9SSepherosa Ziehau 
233776fbb0b9SSepherosa Ziehau 		/*
233876fbb0b9SSepherosa Ziehau 		 * Check number of segments against received bytes.
233976fbb0b9SSepherosa Ziehau 		 * Non-matching value would indicate that hardware
234076fbb0b9SSepherosa Ziehau 		 * is still trying to update Rx descriptors. I'm not
234176fbb0b9SSepherosa Ziehau 		 * sure whether this check is needed.
234276fbb0b9SSepherosa Ziehau 		 */
234376fbb0b9SSepherosa Ziehau 		nsegs = JME_RX_NSEGS(le32toh(desc->buflen));
234476fbb0b9SSepherosa Ziehau 		pktlen = JME_RX_BYTES(le32toh(desc->buflen));
234576fbb0b9SSepherosa Ziehau 		if (nsegs != howmany(pktlen, MCLBYTES)) {
2346dea2452aSSepherosa Ziehau 			if_printf(&rdata->jme_sc->arpcom.ac_if,
2347dea2452aSSepherosa Ziehau 			    "RX fragment count(%d) and "
2348dea2452aSSepherosa Ziehau 			    "packet size(%d) mismach\n", nsegs, pktlen);
234976fbb0b9SSepherosa Ziehau 			break;
235076fbb0b9SSepherosa Ziehau 		}
235176fbb0b9SSepherosa Ziehau 
23526afef6abSSepherosa Ziehau 		/*
23536afef6abSSepherosa Ziehau 		 * NOTE:
23546afef6abSSepherosa Ziehau 		 * RSS hash and hash information may _not_ be set by the
23556afef6abSSepherosa Ziehau 		 * hardware even if the OWN bit is cleared and VALID bit
23566afef6abSSepherosa Ziehau 		 * is set.
23576afef6abSSepherosa Ziehau 		 *
23586afef6abSSepherosa Ziehau 		 * If the RSS information is not delivered by the hardware
23596afef6abSSepherosa Ziehau 		 * yet, we MUST NOT accept this packet, let alone reusing
23606afef6abSSepherosa Ziehau 		 * its RX descriptor.  If this packet was accepted and its
23616afef6abSSepherosa Ziehau 		 * RX descriptor was reused before hardware delivering the
23626afef6abSSepherosa Ziehau 		 * RSS information, the RX buffer's address would be trashed
23636afef6abSSepherosa Ziehau 		 * by the RSS information delivered by the hardware.
23646afef6abSSepherosa Ziehau 		 */
23656afef6abSSepherosa Ziehau 		if (JME_ENABLE_HWRSS(rdata->jme_sc)) {
23666afef6abSSepherosa Ziehau 			struct jme_rxdesc *rxd;
23676afef6abSSepherosa Ziehau 			uint32_t hashinfo;
23686afef6abSSepherosa Ziehau 
23696afef6abSSepherosa Ziehau 			hashinfo = le32toh(desc->addr_lo);
23706afef6abSSepherosa Ziehau 			rxd = &rdata->jme_rxdesc[rdata->jme_rx_cons];
23716afef6abSSepherosa Ziehau 
23726afef6abSSepherosa Ziehau 			/*
23736afef6abSSepherosa Ziehau 			 * This test should be enough to detect the pending
23746afef6abSSepherosa Ziehau 			 * RSS information delivery, given:
23756afef6abSSepherosa Ziehau 			 * - If RSS hash is not calculated, the hashinfo
2376064b75edSSepherosa Ziehau 			 *   will be 0.  Howvever, the lower 32bits of RX
2377064b75edSSepherosa Ziehau 			 *   buffers' physical address will never be 0.
2378064b75edSSepherosa Ziehau 			 *   (see jme_rxbuf_dma_filter)
23796afef6abSSepherosa Ziehau 			 * - If RSS hash is calculated, the lowest 4 bits
23806afef6abSSepherosa Ziehau 			 *   of hashinfo will be set, while the RX buffers
23816afef6abSSepherosa Ziehau 			 *   are at least 2K aligned.
23826afef6abSSepherosa Ziehau 			 */
23836afef6abSSepherosa Ziehau 			if (hashinfo == JME_ADDR_LO(rxd->rx_paddr)) {
23846afef6abSSepherosa Ziehau #ifdef JME_SHOW_RSSWB
23856afef6abSSepherosa Ziehau 				if_printf(&rdata->jme_sc->arpcom.ac_if,
23866afef6abSSepherosa Ziehau 				    "RSS is not written back yet\n");
23876afef6abSSepherosa Ziehau #endif
23886afef6abSSepherosa Ziehau 				break;
23896afef6abSSepherosa Ziehau 			}
23906afef6abSSepherosa Ziehau 		}
23916afef6abSSepherosa Ziehau 
239276fbb0b9SSepherosa Ziehau 		/* Received a frame. */
2393dea2452aSSepherosa Ziehau 		jme_rxpkt(rdata);
239476fbb0b9SSepherosa Ziehau 	}
239576fbb0b9SSepherosa Ziehau }
239676fbb0b9SSepherosa Ziehau 
239776fbb0b9SSepherosa Ziehau static void
239876fbb0b9SSepherosa Ziehau jme_tick(void *xsc)
239976fbb0b9SSepherosa Ziehau {
240076fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = xsc;
240176fbb0b9SSepherosa Ziehau 	struct mii_data *mii = device_get_softc(sc->jme_miibus);
240276fbb0b9SSepherosa Ziehau 
2403*cccc3955SSepherosa Ziehau 	lwkt_serialize_enter(&sc->jme_serialize);
240476fbb0b9SSepherosa Ziehau 
2405*cccc3955SSepherosa Ziehau 	sc->jme_in_tick = TRUE;
240676fbb0b9SSepherosa Ziehau 	mii_tick(mii);
2407*cccc3955SSepherosa Ziehau 	sc->jme_in_tick = FALSE;
2408*cccc3955SSepherosa Ziehau 
240976fbb0b9SSepherosa Ziehau 	callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
241076fbb0b9SSepherosa Ziehau 
2411*cccc3955SSepherosa Ziehau 	lwkt_serialize_exit(&sc->jme_serialize);
241276fbb0b9SSepherosa Ziehau }
241376fbb0b9SSepherosa Ziehau 
241476fbb0b9SSepherosa Ziehau static void
241576fbb0b9SSepherosa Ziehau jme_reset(struct jme_softc *sc)
241676fbb0b9SSepherosa Ziehau {
2417409fe405SSepherosa Ziehau 	uint32_t val;
2418409fe405SSepherosa Ziehau 
2419409fe405SSepherosa Ziehau 	/* Make sure that TX and RX are stopped */
242076fbb0b9SSepherosa Ziehau 	jme_stop_tx(sc);
2421409fe405SSepherosa Ziehau 	jme_stop_rx(sc);
2422409fe405SSepherosa Ziehau 
2423409fe405SSepherosa Ziehau 	/* Start reset */
242476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
2425409fe405SSepherosa Ziehau 	DELAY(20);
2426409fe405SSepherosa Ziehau 
2427409fe405SSepherosa Ziehau 	/*
2428409fe405SSepherosa Ziehau 	 * Hold reset bit before stop reset
2429409fe405SSepherosa Ziehau 	 */
2430409fe405SSepherosa Ziehau 
2431409fe405SSepherosa Ziehau 	/* Disable TXMAC and TXOFL clock sources */
2432409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, GHC_RESET);
2433409fe405SSepherosa Ziehau 	/* Disable RXMAC clock source */
2434409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_GPREG1);
2435409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG1, val | GPREG1_DIS_RXMAC_CLKSRC);
2436409fe405SSepherosa Ziehau 	/* Flush */
2437409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_GHC);
2438409fe405SSepherosa Ziehau 
2439409fe405SSepherosa Ziehau 	/* Stop reset */
244076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, 0);
2441409fe405SSepherosa Ziehau 	/* Flush */
2442409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_GHC);
2443409fe405SSepherosa Ziehau 
2444409fe405SSepherosa Ziehau 	/*
2445409fe405SSepherosa Ziehau 	 * Clear reset bit after stop reset
2446409fe405SSepherosa Ziehau 	 */
2447409fe405SSepherosa Ziehau 
2448409fe405SSepherosa Ziehau 	/* Enable TXMAC and TXOFL clock sources */
2449409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC);
2450409fe405SSepherosa Ziehau 	/* Enable RXMAC clock source */
2451409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_GPREG1);
2452409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG1, val & ~GPREG1_DIS_RXMAC_CLKSRC);
2453409fe405SSepherosa Ziehau 	/* Flush */
2454409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_GHC);
2455409fe405SSepherosa Ziehau 
2456409fe405SSepherosa Ziehau 	/* Disable TXMAC and TXOFL clock sources */
2457409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, 0);
2458409fe405SSepherosa Ziehau 	/* Disable RXMAC clock source */
2459409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_GPREG1);
2460409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG1, val | GPREG1_DIS_RXMAC_CLKSRC);
2461409fe405SSepherosa Ziehau 	/* Flush */
2462409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_GHC);
2463409fe405SSepherosa Ziehau 
2464409fe405SSepherosa Ziehau 	/* Enable TX and RX */
2465409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_TXCSR);
2466409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXCSR, val | TXCSR_TX_ENB);
2467409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_RXCSR);
2468409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXCSR, val | RXCSR_RX_ENB);
2469409fe405SSepherosa Ziehau 	/* Flush */
2470409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_TXCSR);
2471409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_RXCSR);
2472409fe405SSepherosa Ziehau 
2473409fe405SSepherosa Ziehau 	/* Enable TXMAC and TXOFL clock sources */
2474409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GHC, GHC_TXOFL_CLKSRC | GHC_TXMAC_CLKSRC);
2475409fe405SSepherosa Ziehau 	/* Eisable RXMAC clock source */
2476409fe405SSepherosa Ziehau 	val = CSR_READ_4(sc, JME_GPREG1);
2477409fe405SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG1, val & ~GPREG1_DIS_RXMAC_CLKSRC);
2478409fe405SSepherosa Ziehau 	/* Flush */
2479409fe405SSepherosa Ziehau 	CSR_READ_4(sc, JME_GHC);
2480409fe405SSepherosa Ziehau 
2481409fe405SSepherosa Ziehau 	/* Stop TX and RX */
2482409fe405SSepherosa Ziehau 	jme_stop_tx(sc);
2483409fe405SSepherosa Ziehau 	jme_stop_rx(sc);
248476fbb0b9SSepherosa Ziehau }
248576fbb0b9SSepherosa Ziehau 
248676fbb0b9SSepherosa Ziehau static void
248776fbb0b9SSepherosa Ziehau jme_init(void *xsc)
248876fbb0b9SSepherosa Ziehau {
248976fbb0b9SSepherosa Ziehau 	struct jme_softc *sc = xsc;
249076fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
249176fbb0b9SSepherosa Ziehau 	struct mii_data *mii;
249276fbb0b9SSepherosa Ziehau 	uint8_t eaddr[ETHER_ADDR_LEN];
249376fbb0b9SSepherosa Ziehau 	bus_addr_t paddr;
249476fbb0b9SSepherosa Ziehau 	uint32_t reg;
24954447c752SSepherosa Ziehau 	int error, r;
249676fbb0b9SSepherosa Ziehau 
249731f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
249876fbb0b9SSepherosa Ziehau 
249976fbb0b9SSepherosa Ziehau 	/*
250076fbb0b9SSepherosa Ziehau 	 * Cancel any pending I/O.
250176fbb0b9SSepherosa Ziehau 	 */
250276fbb0b9SSepherosa Ziehau 	jme_stop(sc);
250376fbb0b9SSepherosa Ziehau 
250476fbb0b9SSepherosa Ziehau 	/*
250576fbb0b9SSepherosa Ziehau 	 * Reset the chip to a known state.
250676fbb0b9SSepherosa Ziehau 	 */
250776fbb0b9SSepherosa Ziehau 	jme_reset(sc);
250876fbb0b9SSepherosa Ziehau 
250958880b0dSSepherosa Ziehau 	/*
251058880b0dSSepherosa Ziehau 	 * Setup MSI/MSI-X vectors to interrupts mapping
251158880b0dSSepherosa Ziehau 	 */
251258880b0dSSepherosa Ziehau 	jme_set_msinum(sc);
251358880b0dSSepherosa Ziehau 
251476fbb0b9SSepherosa Ziehau 	sc->jme_txd_spare =
25159b3ee148SSepherosa Ziehau 	howmany(ifp->if_mtu + sizeof(struct ether_vlan_header), MCLBYTES);
25169b3ee148SSepherosa Ziehau 	KKASSERT(sc->jme_txd_spare >= 1);
25179b3ee148SSepherosa Ziehau 
25189b3ee148SSepherosa Ziehau 	/*
25199b3ee148SSepherosa Ziehau 	 * If we use 64bit address mode for transmitting, each Tx request
25209b3ee148SSepherosa Ziehau 	 * needs one more symbol descriptor.
25219b3ee148SSepherosa Ziehau 	 */
25229b3ee148SSepherosa Ziehau 	if (sc->jme_lowaddr != BUS_SPACE_MAXADDR_32BIT)
25239b3ee148SSepherosa Ziehau 		sc->jme_txd_spare += 1;
252476fbb0b9SSepherosa Ziehau 
25256afef6abSSepherosa Ziehau 	if (JME_ENABLE_HWRSS(sc))
2526760c056cSSepherosa Ziehau 		jme_enable_rss(sc);
2527760c056cSSepherosa Ziehau 	else
2528760c056cSSepherosa Ziehau 		jme_disable_rss(sc);
25294447c752SSepherosa Ziehau 
25304447c752SSepherosa Ziehau 	/* Init RX descriptors */
25317b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
2532dea2452aSSepherosa Ziehau 		error = jme_init_rx_ring(&sc->jme_cdata.jme_rx_data[r]);
25334447c752SSepherosa Ziehau 		if (error) {
25344447c752SSepherosa Ziehau 			if_printf(ifp, "initialization failed: "
25354447c752SSepherosa Ziehau 				  "no memory for %dth RX ring.\n", r);
253676fbb0b9SSepherosa Ziehau 			jme_stop(sc);
253776fbb0b9SSepherosa Ziehau 			return;
253876fbb0b9SSepherosa Ziehau 		}
25394447c752SSepherosa Ziehau 	}
25404447c752SSepherosa Ziehau 
25414447c752SSepherosa Ziehau 	/* Init TX descriptors */
254276fbb0b9SSepherosa Ziehau 	jme_init_tx_ring(sc);
254376fbb0b9SSepherosa Ziehau 
254476fbb0b9SSepherosa Ziehau 	/* Initialize shadow status block. */
254576fbb0b9SSepherosa Ziehau 	jme_init_ssb(sc);
254676fbb0b9SSepherosa Ziehau 
254776fbb0b9SSepherosa Ziehau 	/* Reprogram the station address. */
254876fbb0b9SSepherosa Ziehau 	bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN);
254976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_PAR0,
255076fbb0b9SSepherosa Ziehau 	    eaddr[3] << 24 | eaddr[2] << 16 | eaddr[1] << 8 | eaddr[0]);
255176fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_PAR1, eaddr[5] << 8 | eaddr[4]);
255276fbb0b9SSepherosa Ziehau 
255376fbb0b9SSepherosa Ziehau 	/*
255476fbb0b9SSepherosa Ziehau 	 * Configure Tx queue.
255576fbb0b9SSepherosa Ziehau 	 *  Tx priority queue weight value : 0
255676fbb0b9SSepherosa Ziehau 	 *  Tx FIFO threshold for processing next packet : 16QW
255776fbb0b9SSepherosa Ziehau 	 *  Maximum Tx DMA length : 512
255876fbb0b9SSepherosa Ziehau 	 *  Allow Tx DMA burst.
255976fbb0b9SSepherosa Ziehau 	 */
256076fbb0b9SSepherosa Ziehau 	sc->jme_txcsr = TXCSR_TXQ_N_SEL(TXCSR_TXQ0);
256176fbb0b9SSepherosa Ziehau 	sc->jme_txcsr |= TXCSR_TXQ_WEIGHT(TXCSR_TXQ_WEIGHT_MIN);
256276fbb0b9SSepherosa Ziehau 	sc->jme_txcsr |= TXCSR_FIFO_THRESH_16QW;
256376fbb0b9SSepherosa Ziehau 	sc->jme_txcsr |= sc->jme_tx_dma_size;
256476fbb0b9SSepherosa Ziehau 	sc->jme_txcsr |= TXCSR_DMA_BURST;
256576fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXCSR, sc->jme_txcsr);
256676fbb0b9SSepherosa Ziehau 
256776fbb0b9SSepherosa Ziehau 	/* Set Tx descriptor counter. */
2568b020bb10SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXQDC, sc->jme_cdata.jme_tx_desc_cnt);
256976fbb0b9SSepherosa Ziehau 
257076fbb0b9SSepherosa Ziehau 	/* Set Tx ring address to the hardware. */
25717405bec3SSepherosa Ziehau 	paddr = sc->jme_cdata.jme_tx_ring_paddr;
257276fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXDBA_HI, JME_ADDR_HI(paddr));
257376fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXDBA_LO, JME_ADDR_LO(paddr));
257476fbb0b9SSepherosa Ziehau 
257576fbb0b9SSepherosa Ziehau 	/* Configure TxMAC parameters. */
257676fbb0b9SSepherosa Ziehau 	reg = TXMAC_IFG1_DEFAULT | TXMAC_IFG2_DEFAULT | TXMAC_IFG_ENB;
257776fbb0b9SSepherosa Ziehau 	reg |= TXMAC_THRESH_1_PKT;
257876fbb0b9SSepherosa Ziehau 	reg |= TXMAC_CRC_ENB | TXMAC_PAD_ENB;
257976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXMAC, reg);
258076fbb0b9SSepherosa Ziehau 
258176fbb0b9SSepherosa Ziehau 	/*
258276fbb0b9SSepherosa Ziehau 	 * Configure Rx queue.
258376fbb0b9SSepherosa Ziehau 	 *  FIFO full threshold for transmitting Tx pause packet : 128T
258476fbb0b9SSepherosa Ziehau 	 *  FIFO threshold for processing next packet : 128QW
258576fbb0b9SSepherosa Ziehau 	 *  Rx queue 0 select
258676fbb0b9SSepherosa Ziehau 	 *  Max Rx DMA length : 128
258776fbb0b9SSepherosa Ziehau 	 *  Rx descriptor retry : 32
258876fbb0b9SSepherosa Ziehau 	 *  Rx descriptor retry time gap : 256ns
258976fbb0b9SSepherosa Ziehau 	 *  Don't receive runt/bad frame.
259076fbb0b9SSepherosa Ziehau 	 */
259176fbb0b9SSepherosa Ziehau 	sc->jme_rxcsr = RXCSR_FIFO_FTHRESH_128T;
2592223cfc2fSSepherosa Ziehau #if 0
259376fbb0b9SSepherosa Ziehau 	/*
259476fbb0b9SSepherosa Ziehau 	 * Since Rx FIFO size is 4K bytes, receiving frames larger
259576fbb0b9SSepherosa Ziehau 	 * than 4K bytes will suffer from Rx FIFO overruns. So
259676fbb0b9SSepherosa Ziehau 	 * decrease FIFO threshold to reduce the FIFO overruns for
259776fbb0b9SSepherosa Ziehau 	 * frames larger than 4000 bytes.
259876fbb0b9SSepherosa Ziehau 	 * For best performance of standard MTU sized frames use
259976fbb0b9SSepherosa Ziehau 	 * maximum allowable FIFO threshold, 128QW.
260076fbb0b9SSepherosa Ziehau 	 */
260176fbb0b9SSepherosa Ziehau 	if ((ifp->if_mtu + ETHER_HDR_LEN + EVL_ENCAPLEN + ETHER_CRC_LEN) >
260276fbb0b9SSepherosa Ziehau 	    JME_RX_FIFO_SIZE)
260376fbb0b9SSepherosa Ziehau 		sc->jme_rxcsr |= RXCSR_FIFO_THRESH_16QW;
260476fbb0b9SSepherosa Ziehau 	else
260576fbb0b9SSepherosa Ziehau 		sc->jme_rxcsr |= RXCSR_FIFO_THRESH_128QW;
2606223cfc2fSSepherosa Ziehau #else
2607223cfc2fSSepherosa Ziehau 	/* Improve PCI Express compatibility */
2608223cfc2fSSepherosa Ziehau 	sc->jme_rxcsr |= RXCSR_FIFO_THRESH_16QW;
2609223cfc2fSSepherosa Ziehau #endif
2610223cfc2fSSepherosa Ziehau 	sc->jme_rxcsr |= sc->jme_rx_dma_size;
261176fbb0b9SSepherosa Ziehau 	sc->jme_rxcsr |= RXCSR_DESC_RT_CNT(RXCSR_DESC_RT_CNT_DEFAULT);
261276fbb0b9SSepherosa Ziehau 	sc->jme_rxcsr |= RXCSR_DESC_RT_GAP_256 & RXCSR_DESC_RT_GAP_MASK;
261376fbb0b9SSepherosa Ziehau 	/* XXX TODO DROP_BAD */
26144447c752SSepherosa Ziehau 
26157b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
26167b040092SSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
26177b040092SSepherosa Ziehau 
26184447c752SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr | RXCSR_RXQ_N_SEL(r));
261976fbb0b9SSepherosa Ziehau 
262076fbb0b9SSepherosa Ziehau 		/* Set Rx descriptor counter. */
26217b040092SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXQDC, rdata->jme_rx_desc_cnt);
262276fbb0b9SSepherosa Ziehau 
262376fbb0b9SSepherosa Ziehau 		/* Set Rx ring address to the hardware. */
26247b040092SSepherosa Ziehau 		paddr = rdata->jme_rx_ring_paddr;
262576fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXDBA_HI, JME_ADDR_HI(paddr));
262676fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXDBA_LO, JME_ADDR_LO(paddr));
26274447c752SSepherosa Ziehau 	}
262876fbb0b9SSepherosa Ziehau 
262976fbb0b9SSepherosa Ziehau 	/* Clear receive filter. */
263076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXMAC, 0);
263176fbb0b9SSepherosa Ziehau 
263276fbb0b9SSepherosa Ziehau 	/* Set up the receive filter. */
263376fbb0b9SSepherosa Ziehau 	jme_set_filter(sc);
263476fbb0b9SSepherosa Ziehau 	jme_set_vlan(sc);
263576fbb0b9SSepherosa Ziehau 
263676fbb0b9SSepherosa Ziehau 	/*
263776fbb0b9SSepherosa Ziehau 	 * Disable all WOL bits as WOL can interfere normal Rx
263876fbb0b9SSepherosa Ziehau 	 * operation. Also clear WOL detection status bits.
263976fbb0b9SSepherosa Ziehau 	 */
264076fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_PMCS);
264176fbb0b9SSepherosa Ziehau 	reg &= ~PMCS_WOL_ENB_MASK;
264276fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_PMCS, reg);
264376fbb0b9SSepherosa Ziehau 
264476fbb0b9SSepherosa Ziehau 	/*
264576fbb0b9SSepherosa Ziehau 	 * Pad 10bytes right before received frame. This will greatly
264676fbb0b9SSepherosa Ziehau 	 * help Rx performance on strict-alignment architectures as
264776fbb0b9SSepherosa Ziehau 	 * it does not need to copy the frame to align the payload.
264876fbb0b9SSepherosa Ziehau 	 */
264976fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_RXMAC);
265076fbb0b9SSepherosa Ziehau 	reg |= RXMAC_PAD_10BYTES;
265176fbb0b9SSepherosa Ziehau 
265276fbb0b9SSepherosa Ziehau 	if (ifp->if_capenable & IFCAP_RXCSUM)
265376fbb0b9SSepherosa Ziehau 		reg |= RXMAC_CSUM_ENB;
265476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXMAC, reg);
265576fbb0b9SSepherosa Ziehau 
265676fbb0b9SSepherosa Ziehau 	/* Configure general purpose reg0 */
265776fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_GPREG0);
265876fbb0b9SSepherosa Ziehau 	reg &= ~GPREG0_PCC_UNIT_MASK;
265976fbb0b9SSepherosa Ziehau 	/* Set PCC timer resolution to micro-seconds unit. */
266076fbb0b9SSepherosa Ziehau 	reg |= GPREG0_PCC_UNIT_US;
266176fbb0b9SSepherosa Ziehau 	/*
266276fbb0b9SSepherosa Ziehau 	 * Disable all shadow register posting as we have to read
266376fbb0b9SSepherosa Ziehau 	 * JME_INTR_STATUS register in jme_intr. Also it seems
266476fbb0b9SSepherosa Ziehau 	 * that it's hard to synchronize interrupt status between
266576fbb0b9SSepherosa Ziehau 	 * hardware and software with shadow posting due to
266676fbb0b9SSepherosa Ziehau 	 * requirements of bus_dmamap_sync(9).
266776fbb0b9SSepherosa Ziehau 	 */
266876fbb0b9SSepherosa Ziehau 	reg |= GPREG0_SH_POST_DW7_DIS | GPREG0_SH_POST_DW6_DIS |
266976fbb0b9SSepherosa Ziehau 	    GPREG0_SH_POST_DW5_DIS | GPREG0_SH_POST_DW4_DIS |
267076fbb0b9SSepherosa Ziehau 	    GPREG0_SH_POST_DW3_DIS | GPREG0_SH_POST_DW2_DIS |
267176fbb0b9SSepherosa Ziehau 	    GPREG0_SH_POST_DW1_DIS | GPREG0_SH_POST_DW0_DIS;
267276fbb0b9SSepherosa Ziehau 	/* Disable posting of DW0. */
267376fbb0b9SSepherosa Ziehau 	reg &= ~GPREG0_POST_DW0_ENB;
267476fbb0b9SSepherosa Ziehau 	/* Clear PME message. */
267576fbb0b9SSepherosa Ziehau 	reg &= ~GPREG0_PME_ENB;
267676fbb0b9SSepherosa Ziehau 	/* Set PHY address. */
267776fbb0b9SSepherosa Ziehau 	reg &= ~GPREG0_PHY_ADDR_MASK;
267876fbb0b9SSepherosa Ziehau 	reg |= sc->jme_phyaddr;
267976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_GPREG0, reg);
268076fbb0b9SSepherosa Ziehau 
268176fbb0b9SSepherosa Ziehau 	/* Configure Tx queue 0 packet completion coalescing. */
26822870abc4SSepherosa Ziehau 	jme_set_tx_coal(sc);
268376fbb0b9SSepherosa Ziehau 
2684dea2452aSSepherosa Ziehau 	/* Configure Rx queues packet completion coalescing. */
26852870abc4SSepherosa Ziehau 	jme_set_rx_coal(sc);
268676fbb0b9SSepherosa Ziehau 
268776fbb0b9SSepherosa Ziehau 	/* Configure shadow status block but don't enable posting. */
2688560616bfSSepherosa Ziehau 	paddr = sc->jme_cdata.jme_ssb_block_paddr;
268976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SHBASE_ADDR_HI, JME_ADDR_HI(paddr));
269076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SHBASE_ADDR_LO, JME_ADDR_LO(paddr));
269176fbb0b9SSepherosa Ziehau 
269276fbb0b9SSepherosa Ziehau 	/* Disable Timer 1 and Timer 2. */
269376fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TIMER1, 0);
269476fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TIMER2, 0);
269576fbb0b9SSepherosa Ziehau 
269676fbb0b9SSepherosa Ziehau 	/* Configure retry transmit period, retry limit value. */
269776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXTRHD,
269876fbb0b9SSepherosa Ziehau 	    ((TXTRHD_RT_PERIOD_DEFAULT << TXTRHD_RT_PERIOD_SHIFT) &
269976fbb0b9SSepherosa Ziehau 	    TXTRHD_RT_PERIOD_MASK) |
270076fbb0b9SSepherosa Ziehau 	    ((TXTRHD_RT_LIMIT_DEFAULT << TXTRHD_RT_LIMIT_SHIFT) &
270176fbb0b9SSepherosa Ziehau 	    TXTRHD_RT_LIMIT_SHIFT));
270276fbb0b9SSepherosa Ziehau 
27039de40864SSepherosa Ziehau #ifdef DEVICE_POLLING
27049de40864SSepherosa Ziehau 	if (!(ifp->if_flags & IFF_POLLING))
27059de40864SSepherosa Ziehau #endif
270676fbb0b9SSepherosa Ziehau 	/* Initialize the interrupt mask. */
270776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
270876fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_STATUS, 0xFFFFFFFF);
270976fbb0b9SSepherosa Ziehau 
271076fbb0b9SSepherosa Ziehau 	/*
271176fbb0b9SSepherosa Ziehau 	 * Enabling Tx/Rx DMA engines and Rx queue processing is
271276fbb0b9SSepherosa Ziehau 	 * done after detection of valid link in jme_miibus_statchg.
271376fbb0b9SSepherosa Ziehau 	 */
2714*cccc3955SSepherosa Ziehau 	sc->jme_has_link = FALSE;
271576fbb0b9SSepherosa Ziehau 
271676fbb0b9SSepherosa Ziehau 	/* Set the current media. */
271776fbb0b9SSepherosa Ziehau 	mii = device_get_softc(sc->jme_miibus);
271876fbb0b9SSepherosa Ziehau 	mii_mediachg(mii);
271976fbb0b9SSepherosa Ziehau 
272076fbb0b9SSepherosa Ziehau 	callout_reset(&sc->jme_tick_ch, hz, jme_tick, sc);
272176fbb0b9SSepherosa Ziehau 
272276fbb0b9SSepherosa Ziehau 	ifp->if_flags |= IFF_RUNNING;
272376fbb0b9SSepherosa Ziehau 	ifp->if_flags &= ~IFF_OACTIVE;
272476fbb0b9SSepherosa Ziehau }
272576fbb0b9SSepherosa Ziehau 
272676fbb0b9SSepherosa Ziehau static void
272776fbb0b9SSepherosa Ziehau jme_stop(struct jme_softc *sc)
272876fbb0b9SSepherosa Ziehau {
272976fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
273076fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
273176fbb0b9SSepherosa Ziehau 	struct jme_rxdesc *rxd;
27324447c752SSepherosa Ziehau 	struct jme_rxdata *rdata;
27334447c752SSepherosa Ziehau 	int i, r;
273476fbb0b9SSepherosa Ziehau 
273531f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
273676fbb0b9SSepherosa Ziehau 
273776fbb0b9SSepherosa Ziehau 	/*
273876fbb0b9SSepherosa Ziehau 	 * Mark the interface down and cancel the watchdog timer.
273976fbb0b9SSepherosa Ziehau 	 */
274076fbb0b9SSepherosa Ziehau 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
274176fbb0b9SSepherosa Ziehau 	ifp->if_timer = 0;
274276fbb0b9SSepherosa Ziehau 
274376fbb0b9SSepherosa Ziehau 	callout_stop(&sc->jme_tick_ch);
2744*cccc3955SSepherosa Ziehau 	sc->jme_has_link = FALSE;
274576fbb0b9SSepherosa Ziehau 
274676fbb0b9SSepherosa Ziehau 	/*
274776fbb0b9SSepherosa Ziehau 	 * Disable interrupts.
274876fbb0b9SSepherosa Ziehau 	 */
274976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
275076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_STATUS, 0xFFFFFFFF);
275176fbb0b9SSepherosa Ziehau 
275276fbb0b9SSepherosa Ziehau 	/* Disable updating shadow status block. */
275376fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_SHBASE_ADDR_LO,
275476fbb0b9SSepherosa Ziehau 	    CSR_READ_4(sc, JME_SHBASE_ADDR_LO) & ~SHBASE_POST_ENB);
275576fbb0b9SSepherosa Ziehau 
275676fbb0b9SSepherosa Ziehau 	/* Stop receiver, transmitter. */
275776fbb0b9SSepherosa Ziehau 	jme_stop_rx(sc);
275876fbb0b9SSepherosa Ziehau 	jme_stop_tx(sc);
275976fbb0b9SSepherosa Ziehau 
276076fbb0b9SSepherosa Ziehau 	/*
276176fbb0b9SSepherosa Ziehau 	 * Free partial finished RX segments
276276fbb0b9SSepherosa Ziehau 	 */
27637b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
27644447c752SSepherosa Ziehau 		rdata = &sc->jme_cdata.jme_rx_data[r];
27654447c752SSepherosa Ziehau 		if (rdata->jme_rxhead != NULL)
27664447c752SSepherosa Ziehau 			m_freem(rdata->jme_rxhead);
2767dea2452aSSepherosa Ziehau 		JME_RXCHAIN_RESET(rdata);
27684447c752SSepherosa Ziehau 	}
276976fbb0b9SSepherosa Ziehau 
277076fbb0b9SSepherosa Ziehau 	/*
277176fbb0b9SSepherosa Ziehau 	 * Free RX and TX mbufs still in the queues.
277276fbb0b9SSepherosa Ziehau 	 */
27737b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
27744447c752SSepherosa Ziehau 		rdata = &sc->jme_cdata.jme_rx_data[r];
27757b040092SSepherosa Ziehau 		for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
27764447c752SSepherosa Ziehau 			rxd = &rdata->jme_rxdesc[i];
277776fbb0b9SSepherosa Ziehau 			if (rxd->rx_m != NULL) {
27784447c752SSepherosa Ziehau 				bus_dmamap_unload(rdata->jme_rx_tag,
277976fbb0b9SSepherosa Ziehau 						  rxd->rx_dmamap);
278076fbb0b9SSepherosa Ziehau 				m_freem(rxd->rx_m);
278176fbb0b9SSepherosa Ziehau 				rxd->rx_m = NULL;
278276fbb0b9SSepherosa Ziehau 			}
278376fbb0b9SSepherosa Ziehau 		}
27844447c752SSepherosa Ziehau 	}
2785b020bb10SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_tx_desc_cnt; i++) {
278676fbb0b9SSepherosa Ziehau 		txd = &sc->jme_cdata.jme_txdesc[i];
278776fbb0b9SSepherosa Ziehau 		if (txd->tx_m != NULL) {
278876fbb0b9SSepherosa Ziehau 			bus_dmamap_unload(sc->jme_cdata.jme_tx_tag,
278976fbb0b9SSepherosa Ziehau 			    txd->tx_dmamap);
279076fbb0b9SSepherosa Ziehau 			m_freem(txd->tx_m);
279176fbb0b9SSepherosa Ziehau 			txd->tx_m = NULL;
279276fbb0b9SSepherosa Ziehau 			txd->tx_ndesc = 0;
279376fbb0b9SSepherosa Ziehau 		}
279476fbb0b9SSepherosa Ziehau         }
279576fbb0b9SSepherosa Ziehau }
279676fbb0b9SSepherosa Ziehau 
279776fbb0b9SSepherosa Ziehau static void
279876fbb0b9SSepherosa Ziehau jme_stop_tx(struct jme_softc *sc)
279976fbb0b9SSepherosa Ziehau {
280076fbb0b9SSepherosa Ziehau 	uint32_t reg;
280176fbb0b9SSepherosa Ziehau 	int i;
280276fbb0b9SSepherosa Ziehau 
280376fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_TXCSR);
280476fbb0b9SSepherosa Ziehau 	if ((reg & TXCSR_TX_ENB) == 0)
280576fbb0b9SSepherosa Ziehau 		return;
280676fbb0b9SSepherosa Ziehau 	reg &= ~TXCSR_TX_ENB;
280776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_TXCSR, reg);
280876fbb0b9SSepherosa Ziehau 	for (i = JME_TIMEOUT; i > 0; i--) {
280976fbb0b9SSepherosa Ziehau 		DELAY(1);
281076fbb0b9SSepherosa Ziehau 		if ((CSR_READ_4(sc, JME_TXCSR) & TXCSR_TX_ENB) == 0)
281176fbb0b9SSepherosa Ziehau 			break;
281276fbb0b9SSepherosa Ziehau 	}
281376fbb0b9SSepherosa Ziehau 	if (i == 0)
281476fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "stopping transmitter timeout!\n");
281576fbb0b9SSepherosa Ziehau }
281676fbb0b9SSepherosa Ziehau 
281776fbb0b9SSepherosa Ziehau static void
281876fbb0b9SSepherosa Ziehau jme_stop_rx(struct jme_softc *sc)
281976fbb0b9SSepherosa Ziehau {
282076fbb0b9SSepherosa Ziehau 	uint32_t reg;
282176fbb0b9SSepherosa Ziehau 	int i;
282276fbb0b9SSepherosa Ziehau 
282376fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_RXCSR);
282476fbb0b9SSepherosa Ziehau 	if ((reg & RXCSR_RX_ENB) == 0)
282576fbb0b9SSepherosa Ziehau 		return;
282676fbb0b9SSepherosa Ziehau 	reg &= ~RXCSR_RX_ENB;
282776fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXCSR, reg);
282876fbb0b9SSepherosa Ziehau 	for (i = JME_TIMEOUT; i > 0; i--) {
282976fbb0b9SSepherosa Ziehau 		DELAY(1);
283076fbb0b9SSepherosa Ziehau 		if ((CSR_READ_4(sc, JME_RXCSR) & RXCSR_RX_ENB) == 0)
283176fbb0b9SSepherosa Ziehau 			break;
283276fbb0b9SSepherosa Ziehau 	}
283376fbb0b9SSepherosa Ziehau 	if (i == 0)
283476fbb0b9SSepherosa Ziehau 		device_printf(sc->jme_dev, "stopping recevier timeout!\n");
283576fbb0b9SSepherosa Ziehau }
283676fbb0b9SSepherosa Ziehau 
283776fbb0b9SSepherosa Ziehau static void
283876fbb0b9SSepherosa Ziehau jme_init_tx_ring(struct jme_softc *sc)
283976fbb0b9SSepherosa Ziehau {
2840560616bfSSepherosa Ziehau 	struct jme_chain_data *cd;
284176fbb0b9SSepherosa Ziehau 	struct jme_txdesc *txd;
284276fbb0b9SSepherosa Ziehau 	int i;
284376fbb0b9SSepherosa Ziehau 
284476fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_prod = 0;
284576fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_cons = 0;
284676fbb0b9SSepherosa Ziehau 	sc->jme_cdata.jme_tx_cnt = 0;
284776fbb0b9SSepherosa Ziehau 
2848560616bfSSepherosa Ziehau 	cd = &sc->jme_cdata;
2849560616bfSSepherosa Ziehau 	bzero(cd->jme_tx_ring, JME_TX_RING_SIZE(sc));
2850b020bb10SSepherosa Ziehau 	for (i = 0; i < sc->jme_cdata.jme_tx_desc_cnt; i++) {
285176fbb0b9SSepherosa Ziehau 		txd = &sc->jme_cdata.jme_txdesc[i];
285276fbb0b9SSepherosa Ziehau 		txd->tx_m = NULL;
2853560616bfSSepherosa Ziehau 		txd->tx_desc = &cd->jme_tx_ring[i];
285476fbb0b9SSepherosa Ziehau 		txd->tx_ndesc = 0;
285576fbb0b9SSepherosa Ziehau 	}
285676fbb0b9SSepherosa Ziehau }
285776fbb0b9SSepherosa Ziehau 
285876fbb0b9SSepherosa Ziehau static void
285976fbb0b9SSepherosa Ziehau jme_init_ssb(struct jme_softc *sc)
286076fbb0b9SSepherosa Ziehau {
2861560616bfSSepherosa Ziehau 	struct jme_chain_data *cd;
286276fbb0b9SSepherosa Ziehau 
2863560616bfSSepherosa Ziehau 	cd = &sc->jme_cdata;
2864560616bfSSepherosa Ziehau 	bzero(cd->jme_ssb_block, JME_SSB_SIZE);
286576fbb0b9SSepherosa Ziehau }
286676fbb0b9SSepherosa Ziehau 
286776fbb0b9SSepherosa Ziehau static int
2868dea2452aSSepherosa Ziehau jme_init_rx_ring(struct jme_rxdata *rdata)
286976fbb0b9SSepherosa Ziehau {
287076fbb0b9SSepherosa Ziehau 	struct jme_rxdesc *rxd;
287176fbb0b9SSepherosa Ziehau 	int i;
287276fbb0b9SSepherosa Ziehau 
28734447c752SSepherosa Ziehau 	KKASSERT(rdata->jme_rxhead == NULL &&
28744447c752SSepherosa Ziehau 		 rdata->jme_rxtail == NULL &&
28754447c752SSepherosa Ziehau 		 rdata->jme_rxlen == 0);
28764447c752SSepherosa Ziehau 	rdata->jme_rx_cons = 0;
287776fbb0b9SSepherosa Ziehau 
28787b040092SSepherosa Ziehau 	bzero(rdata->jme_rx_ring, JME_RX_RING_SIZE(rdata));
28797b040092SSepherosa Ziehau 	for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
288076fbb0b9SSepherosa Ziehau 		int error;
288176fbb0b9SSepherosa Ziehau 
28824447c752SSepherosa Ziehau 		rxd = &rdata->jme_rxdesc[i];
288376fbb0b9SSepherosa Ziehau 		rxd->rx_m = NULL;
28844447c752SSepherosa Ziehau 		rxd->rx_desc = &rdata->jme_rx_ring[i];
2885dea2452aSSepherosa Ziehau 		error = jme_newbuf(rdata, rxd, 1);
288676fbb0b9SSepherosa Ziehau 		if (error)
28874447c752SSepherosa Ziehau 			return error;
288876fbb0b9SSepherosa Ziehau 	}
28894447c752SSepherosa Ziehau 	return 0;
289076fbb0b9SSepherosa Ziehau }
289176fbb0b9SSepherosa Ziehau 
289276fbb0b9SSepherosa Ziehau static int
2893dea2452aSSepherosa Ziehau jme_newbuf(struct jme_rxdata *rdata, struct jme_rxdesc *rxd, int init)
289476fbb0b9SSepherosa Ziehau {
289576fbb0b9SSepherosa Ziehau 	struct mbuf *m;
289676fbb0b9SSepherosa Ziehau 	bus_dma_segment_t segs;
289776fbb0b9SSepherosa Ziehau 	bus_dmamap_t map;
2898b0ba1747SSepherosa Ziehau 	int error, nsegs;
289976fbb0b9SSepherosa Ziehau 
290076fbb0b9SSepherosa Ziehau 	m = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
290176fbb0b9SSepherosa Ziehau 	if (m == NULL)
29024447c752SSepherosa Ziehau 		return ENOBUFS;
290376fbb0b9SSepherosa Ziehau 	/*
290476fbb0b9SSepherosa Ziehau 	 * JMC250 has 64bit boundary alignment limitation so jme(4)
290576fbb0b9SSepherosa Ziehau 	 * takes advantage of 10 bytes padding feature of hardware
290676fbb0b9SSepherosa Ziehau 	 * in order not to copy entire frame to align IP header on
290776fbb0b9SSepherosa Ziehau 	 * 32bit boundary.
290876fbb0b9SSepherosa Ziehau 	 */
290976fbb0b9SSepherosa Ziehau 	m->m_len = m->m_pkthdr.len = MCLBYTES;
291076fbb0b9SSepherosa Ziehau 
2911b0ba1747SSepherosa Ziehau 	error = bus_dmamap_load_mbuf_segment(rdata->jme_rx_tag,
2912b0ba1747SSepherosa Ziehau 			rdata->jme_rx_sparemap, m, &segs, 1, &nsegs,
291376fbb0b9SSepherosa Ziehau 			BUS_DMA_NOWAIT);
2914b0ba1747SSepherosa Ziehau 	if (error) {
291576fbb0b9SSepherosa Ziehau 		m_freem(m);
2916dea2452aSSepherosa Ziehau 		if (init) {
2917dea2452aSSepherosa Ziehau 			if_printf(&rdata->jme_sc->arpcom.ac_if,
2918dea2452aSSepherosa Ziehau 			    "can't load RX mbuf\n");
2919dea2452aSSepherosa Ziehau 		}
29204447c752SSepherosa Ziehau 		return error;
292176fbb0b9SSepherosa Ziehau 	}
292276fbb0b9SSepherosa Ziehau 
292376fbb0b9SSepherosa Ziehau 	if (rxd->rx_m != NULL) {
29244447c752SSepherosa Ziehau 		bus_dmamap_sync(rdata->jme_rx_tag, rxd->rx_dmamap,
292576fbb0b9SSepherosa Ziehau 				BUS_DMASYNC_POSTREAD);
29264447c752SSepherosa Ziehau 		bus_dmamap_unload(rdata->jme_rx_tag, rxd->rx_dmamap);
292776fbb0b9SSepherosa Ziehau 	}
292876fbb0b9SSepherosa Ziehau 	map = rxd->rx_dmamap;
29294447c752SSepherosa Ziehau 	rxd->rx_dmamap = rdata->jme_rx_sparemap;
29304447c752SSepherosa Ziehau 	rdata->jme_rx_sparemap = map;
293176fbb0b9SSepherosa Ziehau 	rxd->rx_m = m;
2932fd2a6d2cSSepherosa Ziehau 	rxd->rx_paddr = segs.ds_addr;
293376fbb0b9SSepherosa Ziehau 
2934fd2a6d2cSSepherosa Ziehau 	jme_setup_rxdesc(rxd);
29354447c752SSepherosa Ziehau 	return 0;
293676fbb0b9SSepherosa Ziehau }
293776fbb0b9SSepherosa Ziehau 
293876fbb0b9SSepherosa Ziehau static void
293976fbb0b9SSepherosa Ziehau jme_set_vlan(struct jme_softc *sc)
294076fbb0b9SSepherosa Ziehau {
294176fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
294276fbb0b9SSepherosa Ziehau 	uint32_t reg;
294376fbb0b9SSepherosa Ziehau 
294431f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
294576fbb0b9SSepherosa Ziehau 
294676fbb0b9SSepherosa Ziehau 	reg = CSR_READ_4(sc, JME_RXMAC);
294776fbb0b9SSepherosa Ziehau 	reg &= ~RXMAC_VLAN_ENB;
294876fbb0b9SSepherosa Ziehau 	if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING)
294976fbb0b9SSepherosa Ziehau 		reg |= RXMAC_VLAN_ENB;
295076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXMAC, reg);
295176fbb0b9SSepherosa Ziehau }
295276fbb0b9SSepherosa Ziehau 
295376fbb0b9SSepherosa Ziehau static void
295476fbb0b9SSepherosa Ziehau jme_set_filter(struct jme_softc *sc)
295576fbb0b9SSepherosa Ziehau {
295676fbb0b9SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
295776fbb0b9SSepherosa Ziehau 	struct ifmultiaddr *ifma;
295876fbb0b9SSepherosa Ziehau 	uint32_t crc;
295976fbb0b9SSepherosa Ziehau 	uint32_t mchash[2];
296076fbb0b9SSepherosa Ziehau 	uint32_t rxcfg;
296176fbb0b9SSepherosa Ziehau 
296231f0d5a2SSepherosa Ziehau 	ASSERT_IFNET_SERIALIZED_ALL(ifp);
296376fbb0b9SSepherosa Ziehau 
296476fbb0b9SSepherosa Ziehau 	rxcfg = CSR_READ_4(sc, JME_RXMAC);
296576fbb0b9SSepherosa Ziehau 	rxcfg &= ~(RXMAC_BROADCAST | RXMAC_PROMISC | RXMAC_MULTICAST |
296676fbb0b9SSepherosa Ziehau 	    RXMAC_ALLMULTI);
296776fbb0b9SSepherosa Ziehau 
296876fbb0b9SSepherosa Ziehau 	/*
296976fbb0b9SSepherosa Ziehau 	 * Always accept frames destined to our station address.
297076fbb0b9SSepherosa Ziehau 	 * Always accept broadcast frames.
297176fbb0b9SSepherosa Ziehau 	 */
297276fbb0b9SSepherosa Ziehau 	rxcfg |= RXMAC_UNICAST | RXMAC_BROADCAST;
297376fbb0b9SSepherosa Ziehau 
297476fbb0b9SSepherosa Ziehau 	if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) {
297576fbb0b9SSepherosa Ziehau 		if (ifp->if_flags & IFF_PROMISC)
297676fbb0b9SSepherosa Ziehau 			rxcfg |= RXMAC_PROMISC;
297776fbb0b9SSepherosa Ziehau 		if (ifp->if_flags & IFF_ALLMULTI)
297876fbb0b9SSepherosa Ziehau 			rxcfg |= RXMAC_ALLMULTI;
297976fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_MAR0, 0xFFFFFFFF);
298076fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_MAR1, 0xFFFFFFFF);
298176fbb0b9SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_RXMAC, rxcfg);
298276fbb0b9SSepherosa Ziehau 		return;
298376fbb0b9SSepherosa Ziehau 	}
298476fbb0b9SSepherosa Ziehau 
298576fbb0b9SSepherosa Ziehau 	/*
298676fbb0b9SSepherosa Ziehau 	 * Set up the multicast address filter by passing all multicast
298776fbb0b9SSepherosa Ziehau 	 * addresses through a CRC generator, and then using the low-order
298876fbb0b9SSepherosa Ziehau 	 * 6 bits as an index into the 64 bit multicast hash table.  The
298976fbb0b9SSepherosa Ziehau 	 * high order bits select the register, while the rest of the bits
299076fbb0b9SSepherosa Ziehau 	 * select the bit within the register.
299176fbb0b9SSepherosa Ziehau 	 */
299276fbb0b9SSepherosa Ziehau 	rxcfg |= RXMAC_MULTICAST;
299376fbb0b9SSepherosa Ziehau 	bzero(mchash, sizeof(mchash));
299476fbb0b9SSepherosa Ziehau 
2995441d34b2SSascha Wildner 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
299676fbb0b9SSepherosa Ziehau 		if (ifma->ifma_addr->sa_family != AF_LINK)
299776fbb0b9SSepherosa Ziehau 			continue;
299876fbb0b9SSepherosa Ziehau 		crc = ether_crc32_be(LLADDR((struct sockaddr_dl *)
299976fbb0b9SSepherosa Ziehau 		    ifma->ifma_addr), ETHER_ADDR_LEN);
300076fbb0b9SSepherosa Ziehau 
300176fbb0b9SSepherosa Ziehau 		/* Just want the 6 least significant bits. */
300276fbb0b9SSepherosa Ziehau 		crc &= 0x3f;
300376fbb0b9SSepherosa Ziehau 
300476fbb0b9SSepherosa Ziehau 		/* Set the corresponding bit in the hash table. */
300576fbb0b9SSepherosa Ziehau 		mchash[crc >> 5] |= 1 << (crc & 0x1f);
300676fbb0b9SSepherosa Ziehau 	}
300776fbb0b9SSepherosa Ziehau 
300876fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_MAR0, mchash[0]);
300976fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_MAR1, mchash[1]);
301076fbb0b9SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RXMAC, rxcfg);
301176fbb0b9SSepherosa Ziehau }
301276fbb0b9SSepherosa Ziehau 
301376fbb0b9SSepherosa Ziehau static int
30142870abc4SSepherosa Ziehau jme_sysctl_tx_coal_to(SYSCTL_HANDLER_ARGS)
301576fbb0b9SSepherosa Ziehau {
30162870abc4SSepherosa Ziehau 	struct jme_softc *sc = arg1;
30172870abc4SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
30182870abc4SSepherosa Ziehau 	int error, v;
30192870abc4SSepherosa Ziehau 
302031f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
30212870abc4SSepherosa Ziehau 
30222870abc4SSepherosa Ziehau 	v = sc->jme_tx_coal_to;
30232870abc4SSepherosa Ziehau 	error = sysctl_handle_int(oidp, &v, 0, req);
30242870abc4SSepherosa Ziehau 	if (error || req->newptr == NULL)
30252870abc4SSepherosa Ziehau 		goto back;
30262870abc4SSepherosa Ziehau 
30272870abc4SSepherosa Ziehau 	if (v < PCCTX_COAL_TO_MIN || v > PCCTX_COAL_TO_MAX) {
30282870abc4SSepherosa Ziehau 		error = EINVAL;
30292870abc4SSepherosa Ziehau 		goto back;
30302870abc4SSepherosa Ziehau 	}
30312870abc4SSepherosa Ziehau 
30322870abc4SSepherosa Ziehau 	if (v != sc->jme_tx_coal_to) {
30332870abc4SSepherosa Ziehau 		sc->jme_tx_coal_to = v;
30342870abc4SSepherosa Ziehau 		if (ifp->if_flags & IFF_RUNNING)
30352870abc4SSepherosa Ziehau 			jme_set_tx_coal(sc);
30362870abc4SSepherosa Ziehau 	}
30372870abc4SSepherosa Ziehau back:
303831f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
30392870abc4SSepherosa Ziehau 	return error;
304076fbb0b9SSepherosa Ziehau }
304176fbb0b9SSepherosa Ziehau 
304276fbb0b9SSepherosa Ziehau static int
30432870abc4SSepherosa Ziehau jme_sysctl_tx_coal_pkt(SYSCTL_HANDLER_ARGS)
304476fbb0b9SSepherosa Ziehau {
30452870abc4SSepherosa Ziehau 	struct jme_softc *sc = arg1;
30462870abc4SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
30472870abc4SSepherosa Ziehau 	int error, v;
30482870abc4SSepherosa Ziehau 
304931f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
30502870abc4SSepherosa Ziehau 
30512870abc4SSepherosa Ziehau 	v = sc->jme_tx_coal_pkt;
30522870abc4SSepherosa Ziehau 	error = sysctl_handle_int(oidp, &v, 0, req);
30532870abc4SSepherosa Ziehau 	if (error || req->newptr == NULL)
30542870abc4SSepherosa Ziehau 		goto back;
30552870abc4SSepherosa Ziehau 
30562870abc4SSepherosa Ziehau 	if (v < PCCTX_COAL_PKT_MIN || v > PCCTX_COAL_PKT_MAX) {
30572870abc4SSepherosa Ziehau 		error = EINVAL;
30582870abc4SSepherosa Ziehau 		goto back;
30592870abc4SSepherosa Ziehau 	}
30602870abc4SSepherosa Ziehau 
30612870abc4SSepherosa Ziehau 	if (v != sc->jme_tx_coal_pkt) {
30622870abc4SSepherosa Ziehau 		sc->jme_tx_coal_pkt = v;
30632870abc4SSepherosa Ziehau 		if (ifp->if_flags & IFF_RUNNING)
30642870abc4SSepherosa Ziehau 			jme_set_tx_coal(sc);
30652870abc4SSepherosa Ziehau 	}
30662870abc4SSepherosa Ziehau back:
306731f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
30682870abc4SSepherosa Ziehau 	return error;
306976fbb0b9SSepherosa Ziehau }
307076fbb0b9SSepherosa Ziehau 
307176fbb0b9SSepherosa Ziehau static int
30722870abc4SSepherosa Ziehau jme_sysctl_rx_coal_to(SYSCTL_HANDLER_ARGS)
307376fbb0b9SSepherosa Ziehau {
30742870abc4SSepherosa Ziehau 	struct jme_softc *sc = arg1;
30752870abc4SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
30762870abc4SSepherosa Ziehau 	int error, v;
30772870abc4SSepherosa Ziehau 
307831f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
30792870abc4SSepherosa Ziehau 
30802870abc4SSepherosa Ziehau 	v = sc->jme_rx_coal_to;
30812870abc4SSepherosa Ziehau 	error = sysctl_handle_int(oidp, &v, 0, req);
30822870abc4SSepherosa Ziehau 	if (error || req->newptr == NULL)
30832870abc4SSepherosa Ziehau 		goto back;
30842870abc4SSepherosa Ziehau 
30852870abc4SSepherosa Ziehau 	if (v < PCCRX_COAL_TO_MIN || v > PCCRX_COAL_TO_MAX) {
30862870abc4SSepherosa Ziehau 		error = EINVAL;
30872870abc4SSepherosa Ziehau 		goto back;
30882870abc4SSepherosa Ziehau 	}
30892870abc4SSepherosa Ziehau 
30902870abc4SSepherosa Ziehau 	if (v != sc->jme_rx_coal_to) {
30912870abc4SSepherosa Ziehau 		sc->jme_rx_coal_to = v;
30922870abc4SSepherosa Ziehau 		if (ifp->if_flags & IFF_RUNNING)
30932870abc4SSepherosa Ziehau 			jme_set_rx_coal(sc);
30942870abc4SSepherosa Ziehau 	}
30952870abc4SSepherosa Ziehau back:
309631f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
30972870abc4SSepherosa Ziehau 	return error;
309876fbb0b9SSepherosa Ziehau }
309976fbb0b9SSepherosa Ziehau 
310076fbb0b9SSepherosa Ziehau static int
31012870abc4SSepherosa Ziehau jme_sysctl_rx_coal_pkt(SYSCTL_HANDLER_ARGS)
310276fbb0b9SSepherosa Ziehau {
31032870abc4SSepherosa Ziehau 	struct jme_softc *sc = arg1;
31042870abc4SSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
31052870abc4SSepherosa Ziehau 	int error, v;
31062870abc4SSepherosa Ziehau 
310731f0d5a2SSepherosa Ziehau 	ifnet_serialize_all(ifp);
31082870abc4SSepherosa Ziehau 
31092870abc4SSepherosa Ziehau 	v = sc->jme_rx_coal_pkt;
31102870abc4SSepherosa Ziehau 	error = sysctl_handle_int(oidp, &v, 0, req);
31112870abc4SSepherosa Ziehau 	if (error || req->newptr == NULL)
31122870abc4SSepherosa Ziehau 		goto back;
31132870abc4SSepherosa Ziehau 
31142870abc4SSepherosa Ziehau 	if (v < PCCRX_COAL_PKT_MIN || v > PCCRX_COAL_PKT_MAX) {
31152870abc4SSepherosa Ziehau 		error = EINVAL;
31162870abc4SSepherosa Ziehau 		goto back;
31172870abc4SSepherosa Ziehau 	}
31182870abc4SSepherosa Ziehau 
31192870abc4SSepherosa Ziehau 	if (v != sc->jme_rx_coal_pkt) {
31202870abc4SSepherosa Ziehau 		sc->jme_rx_coal_pkt = v;
31212870abc4SSepherosa Ziehau 		if (ifp->if_flags & IFF_RUNNING)
31222870abc4SSepherosa Ziehau 			jme_set_rx_coal(sc);
31232870abc4SSepherosa Ziehau 	}
31242870abc4SSepherosa Ziehau back:
312531f0d5a2SSepherosa Ziehau 	ifnet_deserialize_all(ifp);
31262870abc4SSepherosa Ziehau 	return error;
31272870abc4SSepherosa Ziehau }
31282870abc4SSepherosa Ziehau 
31292870abc4SSepherosa Ziehau static void
31302870abc4SSepherosa Ziehau jme_set_tx_coal(struct jme_softc *sc)
31312870abc4SSepherosa Ziehau {
31322870abc4SSepherosa Ziehau 	uint32_t reg;
31332870abc4SSepherosa Ziehau 
31342870abc4SSepherosa Ziehau 	reg = (sc->jme_tx_coal_to << PCCTX_COAL_TO_SHIFT) &
31352870abc4SSepherosa Ziehau 	    PCCTX_COAL_TO_MASK;
31362870abc4SSepherosa Ziehau 	reg |= (sc->jme_tx_coal_pkt << PCCTX_COAL_PKT_SHIFT) &
31372870abc4SSepherosa Ziehau 	    PCCTX_COAL_PKT_MASK;
31382870abc4SSepherosa Ziehau 	reg |= PCCTX_COAL_TXQ0;
31392870abc4SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_PCCTX, reg);
31402870abc4SSepherosa Ziehau }
31412870abc4SSepherosa Ziehau 
31422870abc4SSepherosa Ziehau static void
31432870abc4SSepherosa Ziehau jme_set_rx_coal(struct jme_softc *sc)
31442870abc4SSepherosa Ziehau {
31452870abc4SSepherosa Ziehau 	uint32_t reg;
31464447c752SSepherosa Ziehau 	int r;
31472870abc4SSepherosa Ziehau 
31482870abc4SSepherosa Ziehau 	reg = (sc->jme_rx_coal_to << PCCRX_COAL_TO_SHIFT) &
31492870abc4SSepherosa Ziehau 	    PCCRX_COAL_TO_MASK;
31502870abc4SSepherosa Ziehau 	reg |= (sc->jme_rx_coal_pkt << PCCRX_COAL_PKT_SHIFT) &
31512870abc4SSepherosa Ziehau 	    PCCRX_COAL_PKT_MASK;
31527b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r)
31534447c752SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_PCCRX(r), reg);
315476fbb0b9SSepherosa Ziehau }
31559de40864SSepherosa Ziehau 
31569de40864SSepherosa Ziehau #ifdef DEVICE_POLLING
31579de40864SSepherosa Ziehau 
31589de40864SSepherosa Ziehau static void
31599de40864SSepherosa Ziehau jme_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
31609de40864SSepherosa Ziehau {
31619de40864SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
31629de40864SSepherosa Ziehau 	uint32_t status;
3163eda7db08SSepherosa Ziehau 	int r;
31649de40864SSepherosa Ziehau 
316531f0d5a2SSepherosa Ziehau 	ASSERT_SERIALIZED(&sc->jme_serialize);
31669de40864SSepherosa Ziehau 
31679de40864SSepherosa Ziehau 	switch (cmd) {
31689de40864SSepherosa Ziehau 	case POLL_REGISTER:
31699de40864SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_INTR_MASK_CLR, JME_INTRS);
31709de40864SSepherosa Ziehau 		break;
31719de40864SSepherosa Ziehau 
31729de40864SSepherosa Ziehau 	case POLL_DEREGISTER:
31739de40864SSepherosa Ziehau 		CSR_WRITE_4(sc, JME_INTR_MASK_SET, JME_INTRS);
31749de40864SSepherosa Ziehau 		break;
31759de40864SSepherosa Ziehau 
31769de40864SSepherosa Ziehau 	case POLL_AND_CHECK_STATUS:
31779de40864SSepherosa Ziehau 	case POLL_ONLY:
31789de40864SSepherosa Ziehau 		status = CSR_READ_4(sc, JME_INTR_STATUS);
31790e7f1e6fSSepherosa Ziehau 
31807b040092SSepherosa Ziehau 		for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
318131f0d5a2SSepherosa Ziehau 			struct jme_rxdata *rdata =
318231f0d5a2SSepherosa Ziehau 			    &sc->jme_cdata.jme_rx_data[r];
318331f0d5a2SSepherosa Ziehau 
318431f0d5a2SSepherosa Ziehau 			lwkt_serialize_enter(&rdata->jme_rx_serialize);
3185dea2452aSSepherosa Ziehau 			jme_rxeof(rdata, count);
318631f0d5a2SSepherosa Ziehau 			lwkt_serialize_exit(&rdata->jme_rx_serialize);
318731f0d5a2SSepherosa Ziehau 		}
31889de40864SSepherosa Ziehau 
31899de40864SSepherosa Ziehau 		if (status & INTR_RXQ_DESC_EMPTY) {
31909de40864SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_INTR_STATUS, status);
31919de40864SSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr |
31929de40864SSepherosa Ziehau 			    RXCSR_RX_ENB | RXCSR_RXQ_START);
31939de40864SSepherosa Ziehau 		}
31949de40864SSepherosa Ziehau 
319531f0d5a2SSepherosa Ziehau 		lwkt_serialize_enter(&sc->jme_cdata.jme_tx_serialize);
31969de40864SSepherosa Ziehau 		jme_txeof(sc);
31979de40864SSepherosa Ziehau 		if (!ifq_is_empty(&ifp->if_snd))
31989de40864SSepherosa Ziehau 			if_devstart(ifp);
319931f0d5a2SSepherosa Ziehau 		lwkt_serialize_exit(&sc->jme_cdata.jme_tx_serialize);
32009de40864SSepherosa Ziehau 		break;
32019de40864SSepherosa Ziehau 	}
32029de40864SSepherosa Ziehau }
32039de40864SSepherosa Ziehau 
32049de40864SSepherosa Ziehau #endif	/* DEVICE_POLLING */
32054447c752SSepherosa Ziehau 
32064447c752SSepherosa Ziehau static int
3207dea2452aSSepherosa Ziehau jme_rxring_dma_alloc(struct jme_rxdata *rdata)
32084447c752SSepherosa Ziehau {
32091128a202SSepherosa Ziehau 	bus_dmamem_t dmem;
3210ff7f3632SSepherosa Ziehau 	int error, asize;
32114447c752SSepherosa Ziehau 
3212ff7f3632SSepherosa Ziehau 	asize = roundup2(JME_RX_RING_SIZE(rdata), JME_RX_RING_ALIGN);
3213dea2452aSSepherosa Ziehau 	error = bus_dmamem_coherent(rdata->jme_sc->jme_cdata.jme_ring_tag,
32141128a202SSepherosa Ziehau 			JME_RX_RING_ALIGN, 0,
32150eb220ecSSepherosa Ziehau 			BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
3216ff7f3632SSepherosa Ziehau 			asize, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem);
32174447c752SSepherosa Ziehau 	if (error) {
3218dea2452aSSepherosa Ziehau 		device_printf(rdata->jme_sc->jme_dev,
3219dea2452aSSepherosa Ziehau 		    "could not allocate %dth Rx ring.\n", rdata->jme_rx_idx);
32204447c752SSepherosa Ziehau 		return error;
32214447c752SSepherosa Ziehau 	}
32221128a202SSepherosa Ziehau 	rdata->jme_rx_ring_tag = dmem.dmem_tag;
32231128a202SSepherosa Ziehau 	rdata->jme_rx_ring_map = dmem.dmem_map;
32241128a202SSepherosa Ziehau 	rdata->jme_rx_ring = dmem.dmem_addr;
32251128a202SSepherosa Ziehau 	rdata->jme_rx_ring_paddr = dmem.dmem_busaddr;
32264447c752SSepherosa Ziehau 
32274447c752SSepherosa Ziehau 	return 0;
32284447c752SSepherosa Ziehau }
32294447c752SSepherosa Ziehau 
32304447c752SSepherosa Ziehau static int
3231064b75edSSepherosa Ziehau jme_rxbuf_dma_filter(void *arg __unused, bus_addr_t paddr)
3232064b75edSSepherosa Ziehau {
3233064b75edSSepherosa Ziehau 	if ((paddr & 0xffffffff) == 0) {
3234064b75edSSepherosa Ziehau 		/*
3235064b75edSSepherosa Ziehau 		 * Don't allow lower 32bits of the RX buffer's
3236064b75edSSepherosa Ziehau 		 * physical address to be 0, else it will break
3237064b75edSSepherosa Ziehau 		 * hardware pending RSS information delivery
3238064b75edSSepherosa Ziehau 		 * detection on RX path.
3239064b75edSSepherosa Ziehau 		 */
3240064b75edSSepherosa Ziehau 		return 1;
3241064b75edSSepherosa Ziehau 	}
3242064b75edSSepherosa Ziehau 	return 0;
3243064b75edSSepherosa Ziehau }
3244064b75edSSepherosa Ziehau 
3245064b75edSSepherosa Ziehau static int
3246dea2452aSSepherosa Ziehau jme_rxbuf_dma_alloc(struct jme_rxdata *rdata)
32474447c752SSepherosa Ziehau {
3248064b75edSSepherosa Ziehau 	bus_addr_t lowaddr;
32494447c752SSepherosa Ziehau 	int i, error;
32504447c752SSepherosa Ziehau 
3251064b75edSSepherosa Ziehau 	lowaddr = BUS_SPACE_MAXADDR;
3252064b75edSSepherosa Ziehau 	if (JME_ENABLE_HWRSS(rdata->jme_sc)) {
3253064b75edSSepherosa Ziehau 		/* jme_rxbuf_dma_filter will be called */
3254064b75edSSepherosa Ziehau 		lowaddr = BUS_SPACE_MAXADDR_32BIT;
3255064b75edSSepherosa Ziehau 	}
3256064b75edSSepherosa Ziehau 
32574447c752SSepherosa Ziehau 	/* Create tag for Rx buffers. */
3258dea2452aSSepherosa Ziehau 	error = bus_dma_tag_create(
3259dea2452aSSepherosa Ziehau 	    rdata->jme_sc->jme_cdata.jme_buffer_tag,/* parent */
32604447c752SSepherosa Ziehau 	    JME_RX_BUF_ALIGN, 0,	/* algnmnt, boundary */
3261064b75edSSepherosa Ziehau 	    lowaddr,			/* lowaddr */
32624447c752SSepherosa Ziehau 	    BUS_SPACE_MAXADDR,		/* highaddr */
3263064b75edSSepherosa Ziehau 	    jme_rxbuf_dma_filter, NULL,	/* filter, filterarg */
32644447c752SSepherosa Ziehau 	    MCLBYTES,			/* maxsize */
32654447c752SSepherosa Ziehau 	    1,				/* nsegments */
32664447c752SSepherosa Ziehau 	    MCLBYTES,			/* maxsegsize */
32679d424ceeSSepherosa Ziehau 	    BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | BUS_DMA_ALIGNED,/* flags */
32684447c752SSepherosa Ziehau 	    &rdata->jme_rx_tag);
32694447c752SSepherosa Ziehau 	if (error) {
3270dea2452aSSepherosa Ziehau 		device_printf(rdata->jme_sc->jme_dev,
3271dea2452aSSepherosa Ziehau 		    "could not create %dth Rx DMA tag.\n", rdata->jme_rx_idx);
32724447c752SSepherosa Ziehau 		return error;
32734447c752SSepherosa Ziehau 	}
32744447c752SSepherosa Ziehau 
32754447c752SSepherosa Ziehau 	/* Create DMA maps for Rx buffers. */
32769d424ceeSSepherosa Ziehau 	error = bus_dmamap_create(rdata->jme_rx_tag, BUS_DMA_WAITOK,
32774447c752SSepherosa Ziehau 				  &rdata->jme_rx_sparemap);
32784447c752SSepherosa Ziehau 	if (error) {
3279dea2452aSSepherosa Ziehau 		device_printf(rdata->jme_sc->jme_dev,
3280dea2452aSSepherosa Ziehau 		    "could not create %dth spare Rx dmamap.\n",
3281dea2452aSSepherosa Ziehau 		    rdata->jme_rx_idx);
32824447c752SSepherosa Ziehau 		bus_dma_tag_destroy(rdata->jme_rx_tag);
32834447c752SSepherosa Ziehau 		rdata->jme_rx_tag = NULL;
32844447c752SSepherosa Ziehau 		return error;
32854447c752SSepherosa Ziehau 	}
32867b040092SSepherosa Ziehau 	for (i = 0; i < rdata->jme_rx_desc_cnt; i++) {
32874447c752SSepherosa Ziehau 		struct jme_rxdesc *rxd = &rdata->jme_rxdesc[i];
32884447c752SSepherosa Ziehau 
32899d424ceeSSepherosa Ziehau 		error = bus_dmamap_create(rdata->jme_rx_tag, BUS_DMA_WAITOK,
32904447c752SSepherosa Ziehau 					  &rxd->rx_dmamap);
32914447c752SSepherosa Ziehau 		if (error) {
32924447c752SSepherosa Ziehau 			int j;
32934447c752SSepherosa Ziehau 
3294dea2452aSSepherosa Ziehau 			device_printf(rdata->jme_sc->jme_dev,
32954447c752SSepherosa Ziehau 			    "could not create %dth Rx dmamap "
3296dea2452aSSepherosa Ziehau 			    "for %dth RX ring.\n", i, rdata->jme_rx_idx);
32974447c752SSepherosa Ziehau 
32984447c752SSepherosa Ziehau 			for (j = 0; j < i; ++j) {
32994447c752SSepherosa Ziehau 				rxd = &rdata->jme_rxdesc[j];
33004447c752SSepherosa Ziehau 				bus_dmamap_destroy(rdata->jme_rx_tag,
33014447c752SSepherosa Ziehau 						   rxd->rx_dmamap);
33024447c752SSepherosa Ziehau 			}
33034447c752SSepherosa Ziehau 			bus_dmamap_destroy(rdata->jme_rx_tag,
33044447c752SSepherosa Ziehau 					   rdata->jme_rx_sparemap);
33054447c752SSepherosa Ziehau 			bus_dma_tag_destroy(rdata->jme_rx_tag);
33064447c752SSepherosa Ziehau 			rdata->jme_rx_tag = NULL;
33074447c752SSepherosa Ziehau 			return error;
33084447c752SSepherosa Ziehau 		}
33094447c752SSepherosa Ziehau 	}
33104447c752SSepherosa Ziehau 	return 0;
33114447c752SSepherosa Ziehau }
33124447c752SSepherosa Ziehau 
33134447c752SSepherosa Ziehau static void
33144447c752SSepherosa Ziehau jme_rx_intr(struct jme_softc *sc, uint32_t status)
33154447c752SSepherosa Ziehau {
3316eda7db08SSepherosa Ziehau 	int r;
33174447c752SSepherosa Ziehau 
33187b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
331931810fb8SSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
332031f0d5a2SSepherosa Ziehau 
332131810fb8SSepherosa Ziehau 		if (status & rdata->jme_rx_coal) {
332231f0d5a2SSepherosa Ziehau 			lwkt_serialize_enter(&rdata->jme_rx_serialize);
3323dea2452aSSepherosa Ziehau 			jme_rxeof(rdata, -1);
332431f0d5a2SSepherosa Ziehau 			lwkt_serialize_exit(&rdata->jme_rx_serialize);
332531f0d5a2SSepherosa Ziehau 		}
33264447c752SSepherosa Ziehau 	}
33274447c752SSepherosa Ziehau }
3328760c056cSSepherosa Ziehau 
3329760c056cSSepherosa Ziehau static void
3330760c056cSSepherosa Ziehau jme_enable_rss(struct jme_softc *sc)
3331760c056cSSepherosa Ziehau {
333224dd1705SSepherosa Ziehau 	uint32_t rssc, ind;
333324dd1705SSepherosa Ziehau 	uint8_t key[RSSKEY_NREGS * RSSKEY_REGSIZE];
3334760c056cSSepherosa Ziehau 	int i;
3335760c056cSSepherosa Ziehau 
3336022f915eSSepherosa Ziehau 	KASSERT(sc->jme_cdata.jme_rx_ring_cnt == JME_NRXRING_2 ||
3337022f915eSSepherosa Ziehau 		sc->jme_cdata.jme_rx_ring_cnt == JME_NRXRING_4,
3338ed20d0e3SSascha Wildner 		("%s: invalid # of RX rings (%d)",
3339022f915eSSepherosa Ziehau 		 sc->arpcom.ac_if.if_xname, sc->jme_cdata.jme_rx_ring_cnt));
334066f75939SSepherosa Ziehau 
3341760c056cSSepherosa Ziehau 	rssc = RSSC_HASH_64_ENTRY;
3342760c056cSSepherosa Ziehau 	rssc |= RSSC_HASH_IPV4 | RSSC_HASH_IPV4_TCP;
33437b040092SSepherosa Ziehau 	rssc |= sc->jme_cdata.jme_rx_ring_cnt >> 1;
3344760c056cSSepherosa Ziehau 	JME_RSS_DPRINTF(sc, 1, "rssc 0x%08x\n", rssc);
3345760c056cSSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RSSC, rssc);
3346760c056cSSepherosa Ziehau 
334724dd1705SSepherosa Ziehau 	toeplitz_get_key(key, sizeof(key));
334824dd1705SSepherosa Ziehau 	for (i = 0; i < RSSKEY_NREGS; ++i) {
334924dd1705SSepherosa Ziehau 		uint32_t keyreg;
335024dd1705SSepherosa Ziehau 
335124dd1705SSepherosa Ziehau 		keyreg = RSSKEY_REGVAL(key, i);
335224dd1705SSepherosa Ziehau 		JME_RSS_DPRINTF(sc, 5, "keyreg%d 0x%08x\n", i, keyreg);
335324dd1705SSepherosa Ziehau 
335424dd1705SSepherosa Ziehau 		CSR_WRITE_4(sc, RSSKEY_REG(i), keyreg);
335524dd1705SSepherosa Ziehau 	}
3356760c056cSSepherosa Ziehau 
335766f75939SSepherosa Ziehau 	/*
335866f75939SSepherosa Ziehau 	 * Create redirect table in following fashion:
335966f75939SSepherosa Ziehau 	 * (hash & ring_cnt_mask) == rdr_table[(hash & rdr_table_mask)]
336066f75939SSepherosa Ziehau 	 */
3361760c056cSSepherosa Ziehau 	ind = 0;
336266f75939SSepherosa Ziehau 	for (i = 0; i < RSSTBL_REGSIZE; ++i) {
336366f75939SSepherosa Ziehau 		int q;
336466f75939SSepherosa Ziehau 
33657b040092SSepherosa Ziehau 		q = i % sc->jme_cdata.jme_rx_ring_cnt;
336666f75939SSepherosa Ziehau 		ind |= q << (i * 8);
3367760c056cSSepherosa Ziehau 	}
3368760c056cSSepherosa Ziehau 	JME_RSS_DPRINTF(sc, 1, "ind 0x%08x\n", ind);
336966f75939SSepherosa Ziehau 
3370760c056cSSepherosa Ziehau 	for (i = 0; i < RSSTBL_NREGS; ++i)
3371760c056cSSepherosa Ziehau 		CSR_WRITE_4(sc, RSSTBL_REG(i), ind);
3372760c056cSSepherosa Ziehau }
3373760c056cSSepherosa Ziehau 
3374760c056cSSepherosa Ziehau static void
3375760c056cSSepherosa Ziehau jme_disable_rss(struct jme_softc *sc)
3376760c056cSSepherosa Ziehau {
3377760c056cSSepherosa Ziehau 	CSR_WRITE_4(sc, JME_RSSC, RSSC_DIS_RSS);
3378760c056cSSepherosa Ziehau }
337931f0d5a2SSepherosa Ziehau 
338031f0d5a2SSepherosa Ziehau static void
338131f0d5a2SSepherosa Ziehau jme_serialize(struct ifnet *ifp, enum ifnet_serialize slz)
338231f0d5a2SSepherosa Ziehau {
338331f0d5a2SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
338431f0d5a2SSepherosa Ziehau 
338529890f78SSepherosa Ziehau 	ifnet_serialize_array_enter(sc->jme_serialize_arr,
338629890f78SSepherosa Ziehau 	    sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
338731f0d5a2SSepherosa Ziehau }
338831f0d5a2SSepherosa Ziehau 
338931f0d5a2SSepherosa Ziehau static void
339031f0d5a2SSepherosa Ziehau jme_deserialize(struct ifnet *ifp, enum ifnet_serialize slz)
339131f0d5a2SSepherosa Ziehau {
339231f0d5a2SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
339331f0d5a2SSepherosa Ziehau 
339429890f78SSepherosa Ziehau 	ifnet_serialize_array_exit(sc->jme_serialize_arr,
339529890f78SSepherosa Ziehau 	    sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
339631f0d5a2SSepherosa Ziehau }
339731f0d5a2SSepherosa Ziehau 
339831f0d5a2SSepherosa Ziehau static int
339931f0d5a2SSepherosa Ziehau jme_tryserialize(struct ifnet *ifp, enum ifnet_serialize slz)
340031f0d5a2SSepherosa Ziehau {
340131f0d5a2SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
340231f0d5a2SSepherosa Ziehau 
340329890f78SSepherosa Ziehau 	return ifnet_serialize_array_try(sc->jme_serialize_arr,
340429890f78SSepherosa Ziehau 	    sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE, slz);
340531f0d5a2SSepherosa Ziehau }
340631f0d5a2SSepherosa Ziehau 
340731f0d5a2SSepherosa Ziehau #ifdef INVARIANTS
340831f0d5a2SSepherosa Ziehau 
340931f0d5a2SSepherosa Ziehau static void
341031f0d5a2SSepherosa Ziehau jme_serialize_assert(struct ifnet *ifp, enum ifnet_serialize slz,
341131f0d5a2SSepherosa Ziehau     boolean_t serialized)
341231f0d5a2SSepherosa Ziehau {
341331f0d5a2SSepherosa Ziehau 	struct jme_softc *sc = ifp->if_softc;
341431f0d5a2SSepherosa Ziehau 
341529890f78SSepherosa Ziehau 	ifnet_serialize_array_assert(sc->jme_serialize_arr,
341629890f78SSepherosa Ziehau 	    sc->jme_serialize_cnt, JME_TX_SERIALIZE, JME_RX_SERIALIZE,
341729890f78SSepherosa Ziehau 	    slz, serialized);
341831f0d5a2SSepherosa Ziehau }
341931f0d5a2SSepherosa Ziehau 
342031f0d5a2SSepherosa Ziehau #endif	/* INVARIANTS */
342158880b0dSSepherosa Ziehau 
342258880b0dSSepherosa Ziehau static void
342358880b0dSSepherosa Ziehau jme_msix_try_alloc(device_t dev)
342458880b0dSSepherosa Ziehau {
342558880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
342658880b0dSSepherosa Ziehau 	struct jme_msix_data *msix;
342758880b0dSSepherosa Ziehau 	int error, i, r, msix_enable, msix_count;
342858880b0dSSepherosa Ziehau 
34297b040092SSepherosa Ziehau 	msix_count = 1 + sc->jme_cdata.jme_rx_ring_cnt;
343058880b0dSSepherosa Ziehau 	KKASSERT(msix_count <= JME_NMSIX);
343158880b0dSSepherosa Ziehau 
34321cc217a9SSepherosa Ziehau 	msix_enable = device_getenv_int(dev, "msix.enable", jme_msix_enable);
343358880b0dSSepherosa Ziehau 
343458880b0dSSepherosa Ziehau 	/*
343558880b0dSSepherosa Ziehau 	 * We leave the 1st MSI-X vector unused, so we
343658880b0dSSepherosa Ziehau 	 * actually need msix_count + 1 MSI-X vectors.
343758880b0dSSepherosa Ziehau 	 */
343858880b0dSSepherosa Ziehau 	if (!msix_enable || pci_msix_count(dev) < (msix_count + 1))
343958880b0dSSepherosa Ziehau 		return;
344058880b0dSSepherosa Ziehau 
344158880b0dSSepherosa Ziehau 	for (i = 0; i < msix_count; ++i)
344258880b0dSSepherosa Ziehau 		sc->jme_msix[i].jme_msix_rid = -1;
344358880b0dSSepherosa Ziehau 
344458880b0dSSepherosa Ziehau 	i = 0;
344558880b0dSSepherosa Ziehau 
344658880b0dSSepherosa Ziehau 	msix = &sc->jme_msix[i++];
344758880b0dSSepherosa Ziehau 	msix->jme_msix_cpuid = 0;		/* XXX Put TX to cpu0 */
344858880b0dSSepherosa Ziehau 	msix->jme_msix_arg = &sc->jme_cdata;
344958880b0dSSepherosa Ziehau 	msix->jme_msix_func = jme_msix_tx;
345058880b0dSSepherosa Ziehau 	msix->jme_msix_intrs = INTR_TXQ_COAL | INTR_TXQ_COAL_TO;
345158880b0dSSepherosa Ziehau 	msix->jme_msix_serialize = &sc->jme_cdata.jme_tx_serialize;
345258880b0dSSepherosa Ziehau 	ksnprintf(msix->jme_msix_desc, sizeof(msix->jme_msix_desc), "%s tx",
345358880b0dSSepherosa Ziehau 	    device_get_nameunit(dev));
345458880b0dSSepherosa Ziehau 
34557b040092SSepherosa Ziehau 	for (r = 0; r < sc->jme_cdata.jme_rx_ring_cnt; ++r) {
345658880b0dSSepherosa Ziehau 		struct jme_rxdata *rdata = &sc->jme_cdata.jme_rx_data[r];
345758880b0dSSepherosa Ziehau 
345858880b0dSSepherosa Ziehau 		msix = &sc->jme_msix[i++];
345958880b0dSSepherosa Ziehau 		msix->jme_msix_cpuid = r;	/* XXX Put RX to cpuX */
346058880b0dSSepherosa Ziehau 		msix->jme_msix_arg = rdata;
346158880b0dSSepherosa Ziehau 		msix->jme_msix_func = jme_msix_rx;
346258880b0dSSepherosa Ziehau 		msix->jme_msix_intrs = rdata->jme_rx_coal | rdata->jme_rx_empty;
346358880b0dSSepherosa Ziehau 		msix->jme_msix_serialize = &rdata->jme_rx_serialize;
346458880b0dSSepherosa Ziehau 		ksnprintf(msix->jme_msix_desc, sizeof(msix->jme_msix_desc),
346558880b0dSSepherosa Ziehau 		    "%s rx%d", device_get_nameunit(dev), r);
346658880b0dSSepherosa Ziehau 	}
346758880b0dSSepherosa Ziehau 
346858880b0dSSepherosa Ziehau 	KKASSERT(i == msix_count);
346958880b0dSSepherosa Ziehau 
347058880b0dSSepherosa Ziehau 	error = pci_setup_msix(dev);
347158880b0dSSepherosa Ziehau 	if (error)
347258880b0dSSepherosa Ziehau 		return;
347358880b0dSSepherosa Ziehau 
347458880b0dSSepherosa Ziehau 	/* Setup jme_msix_cnt early, so we could cleanup */
347558880b0dSSepherosa Ziehau 	sc->jme_msix_cnt = msix_count;
347658880b0dSSepherosa Ziehau 
347758880b0dSSepherosa Ziehau 	for (i = 0; i < msix_count; ++i) {
347858880b0dSSepherosa Ziehau 		msix = &sc->jme_msix[i];
347958880b0dSSepherosa Ziehau 
348058880b0dSSepherosa Ziehau 		msix->jme_msix_vector = i + 1;
348158880b0dSSepherosa Ziehau 		error = pci_alloc_msix_vector(dev, msix->jme_msix_vector,
348258880b0dSSepherosa Ziehau 		    &msix->jme_msix_rid, msix->jme_msix_cpuid);
348358880b0dSSepherosa Ziehau 		if (error)
348458880b0dSSepherosa Ziehau 			goto back;
348558880b0dSSepherosa Ziehau 
348658880b0dSSepherosa Ziehau 		msix->jme_msix_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
348758880b0dSSepherosa Ziehau 		    &msix->jme_msix_rid, RF_ACTIVE);
348858880b0dSSepherosa Ziehau 		if (msix->jme_msix_res == NULL) {
348958880b0dSSepherosa Ziehau 			error = ENOMEM;
349058880b0dSSepherosa Ziehau 			goto back;
349158880b0dSSepherosa Ziehau 		}
349258880b0dSSepherosa Ziehau 	}
349358880b0dSSepherosa Ziehau 
349458880b0dSSepherosa Ziehau 	for (i = 0; i < JME_INTR_CNT; ++i) {
349558880b0dSSepherosa Ziehau 		uint32_t intr_mask = (1 << i);
349658880b0dSSepherosa Ziehau 		int x;
349758880b0dSSepherosa Ziehau 
349858880b0dSSepherosa Ziehau 		if ((JME_INTRS & intr_mask) == 0)
349958880b0dSSepherosa Ziehau 			continue;
350058880b0dSSepherosa Ziehau 
350158880b0dSSepherosa Ziehau 		for (x = 0; x < msix_count; ++x) {
350258880b0dSSepherosa Ziehau 			msix = &sc->jme_msix[x];
350358880b0dSSepherosa Ziehau 			if (msix->jme_msix_intrs & intr_mask) {
350458880b0dSSepherosa Ziehau 				int reg, shift;
350558880b0dSSepherosa Ziehau 
350658880b0dSSepherosa Ziehau 				reg = i / JME_MSINUM_FACTOR;
350758880b0dSSepherosa Ziehau 				KKASSERT(reg < JME_MSINUM_CNT);
350858880b0dSSepherosa Ziehau 
350958880b0dSSepherosa Ziehau 				shift = (i % JME_MSINUM_FACTOR) * 4;
351058880b0dSSepherosa Ziehau 
351158880b0dSSepherosa Ziehau 				sc->jme_msinum[reg] |=
351258880b0dSSepherosa Ziehau 				    (msix->jme_msix_vector << shift);
351358880b0dSSepherosa Ziehau 
351458880b0dSSepherosa Ziehau 				break;
351558880b0dSSepherosa Ziehau 			}
351658880b0dSSepherosa Ziehau 		}
351758880b0dSSepherosa Ziehau 	}
351858880b0dSSepherosa Ziehau 
351958880b0dSSepherosa Ziehau 	if (bootverbose) {
352058880b0dSSepherosa Ziehau 		for (i = 0; i < JME_MSINUM_CNT; ++i) {
352158880b0dSSepherosa Ziehau 			device_printf(dev, "MSINUM%d: %#x\n", i,
352258880b0dSSepherosa Ziehau 			    sc->jme_msinum[i]);
352358880b0dSSepherosa Ziehau 		}
352458880b0dSSepherosa Ziehau 	}
352558880b0dSSepherosa Ziehau 
352658880b0dSSepherosa Ziehau 	pci_enable_msix(dev);
352758880b0dSSepherosa Ziehau 	sc->jme_irq_type = PCI_INTR_TYPE_MSIX;
352858880b0dSSepherosa Ziehau 
352958880b0dSSepherosa Ziehau back:
353058880b0dSSepherosa Ziehau 	if (error)
353158880b0dSSepherosa Ziehau 		jme_msix_free(dev);
353258880b0dSSepherosa Ziehau }
353358880b0dSSepherosa Ziehau 
353458880b0dSSepherosa Ziehau static int
353558880b0dSSepherosa Ziehau jme_intr_alloc(device_t dev)
353658880b0dSSepherosa Ziehau {
353758880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
353858880b0dSSepherosa Ziehau 	u_int irq_flags;
353958880b0dSSepherosa Ziehau 
354058880b0dSSepherosa Ziehau 	jme_msix_try_alloc(dev);
354158880b0dSSepherosa Ziehau 
354258880b0dSSepherosa Ziehau 	if (sc->jme_irq_type != PCI_INTR_TYPE_MSIX) {
354358880b0dSSepherosa Ziehau 		sc->jme_irq_type = pci_alloc_1intr(dev, jme_msi_enable,
354458880b0dSSepherosa Ziehau 		    &sc->jme_irq_rid, &irq_flags);
354558880b0dSSepherosa Ziehau 
354658880b0dSSepherosa Ziehau 		sc->jme_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
354758880b0dSSepherosa Ziehau 		    &sc->jme_irq_rid, irq_flags);
354858880b0dSSepherosa Ziehau 		if (sc->jme_irq_res == NULL) {
354958880b0dSSepherosa Ziehau 			device_printf(dev, "can't allocate irq\n");
355058880b0dSSepherosa Ziehau 			return ENXIO;
355158880b0dSSepherosa Ziehau 		}
355258880b0dSSepherosa Ziehau 	}
355358880b0dSSepherosa Ziehau 	return 0;
355458880b0dSSepherosa Ziehau }
355558880b0dSSepherosa Ziehau 
355658880b0dSSepherosa Ziehau static void
355758880b0dSSepherosa Ziehau jme_msix_free(device_t dev)
355858880b0dSSepherosa Ziehau {
355958880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
356058880b0dSSepherosa Ziehau 	int i;
356158880b0dSSepherosa Ziehau 
356258880b0dSSepherosa Ziehau 	KKASSERT(sc->jme_msix_cnt > 1);
356358880b0dSSepherosa Ziehau 
356458880b0dSSepherosa Ziehau 	for (i = 0; i < sc->jme_msix_cnt; ++i) {
356558880b0dSSepherosa Ziehau 		struct jme_msix_data *msix = &sc->jme_msix[i];
356658880b0dSSepherosa Ziehau 
356758880b0dSSepherosa Ziehau 		if (msix->jme_msix_res != NULL) {
356858880b0dSSepherosa Ziehau 			bus_release_resource(dev, SYS_RES_IRQ,
356958880b0dSSepherosa Ziehau 			    msix->jme_msix_rid, msix->jme_msix_res);
357058880b0dSSepherosa Ziehau 			msix->jme_msix_res = NULL;
357158880b0dSSepherosa Ziehau 		}
357258880b0dSSepherosa Ziehau 		if (msix->jme_msix_rid >= 0) {
357358880b0dSSepherosa Ziehau 			pci_release_msix_vector(dev, msix->jme_msix_rid);
357458880b0dSSepherosa Ziehau 			msix->jme_msix_rid = -1;
357558880b0dSSepherosa Ziehau 		}
357658880b0dSSepherosa Ziehau 	}
357758880b0dSSepherosa Ziehau 	pci_teardown_msix(dev);
357858880b0dSSepherosa Ziehau }
357958880b0dSSepherosa Ziehau 
358058880b0dSSepherosa Ziehau static void
358158880b0dSSepherosa Ziehau jme_intr_free(device_t dev)
358258880b0dSSepherosa Ziehau {
358358880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
358458880b0dSSepherosa Ziehau 
358558880b0dSSepherosa Ziehau 	if (sc->jme_irq_type != PCI_INTR_TYPE_MSIX) {
358658880b0dSSepherosa Ziehau 		if (sc->jme_irq_res != NULL) {
358758880b0dSSepherosa Ziehau 			bus_release_resource(dev, SYS_RES_IRQ, sc->jme_irq_rid,
358858880b0dSSepherosa Ziehau 					     sc->jme_irq_res);
358958880b0dSSepherosa Ziehau 		}
359058880b0dSSepherosa Ziehau 		if (sc->jme_irq_type == PCI_INTR_TYPE_MSI)
359158880b0dSSepherosa Ziehau 			pci_release_msi(dev);
359258880b0dSSepherosa Ziehau 	} else {
359358880b0dSSepherosa Ziehau 		jme_msix_free(dev);
359458880b0dSSepherosa Ziehau 	}
359558880b0dSSepherosa Ziehau }
359658880b0dSSepherosa Ziehau 
359758880b0dSSepherosa Ziehau static void
359858880b0dSSepherosa Ziehau jme_msix_tx(void *xcd)
359958880b0dSSepherosa Ziehau {
360058880b0dSSepherosa Ziehau 	struct jme_chain_data *cd = xcd;
360158880b0dSSepherosa Ziehau 	struct jme_softc *sc = cd->jme_sc;
360258880b0dSSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
360358880b0dSSepherosa Ziehau 
360458880b0dSSepherosa Ziehau 	ASSERT_SERIALIZED(&cd->jme_tx_serialize);
360558880b0dSSepherosa Ziehau 
3606875547c0SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_CLR, INTR_TXQ_COAL | INTR_TXQ_COAL_TO);
3607875547c0SSepherosa Ziehau 
360858880b0dSSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_STATUS,
360958880b0dSSepherosa Ziehau 	    INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP);
361058880b0dSSepherosa Ziehau 
361158880b0dSSepherosa Ziehau 	if (ifp->if_flags & IFF_RUNNING) {
361258880b0dSSepherosa Ziehau 		jme_txeof(sc);
361358880b0dSSepherosa Ziehau 		if (!ifq_is_empty(&ifp->if_snd))
361458880b0dSSepherosa Ziehau 			if_devstart(ifp);
361558880b0dSSepherosa Ziehau 	}
3616875547c0SSepherosa Ziehau 
3617875547c0SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_SET, INTR_TXQ_COAL | INTR_TXQ_COAL_TO);
361858880b0dSSepherosa Ziehau }
361958880b0dSSepherosa Ziehau 
362058880b0dSSepherosa Ziehau static void
362158880b0dSSepherosa Ziehau jme_msix_rx(void *xrdata)
362258880b0dSSepherosa Ziehau {
362358880b0dSSepherosa Ziehau 	struct jme_rxdata *rdata = xrdata;
362458880b0dSSepherosa Ziehau 	struct jme_softc *sc = rdata->jme_sc;
362558880b0dSSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
362658880b0dSSepherosa Ziehau 	uint32_t status;
362758880b0dSSepherosa Ziehau 
362858880b0dSSepherosa Ziehau 	ASSERT_SERIALIZED(&rdata->jme_rx_serialize);
362958880b0dSSepherosa Ziehau 
3630875547c0SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_CLR,
3631875547c0SSepherosa Ziehau 	    (rdata->jme_rx_coal | rdata->jme_rx_empty));
3632875547c0SSepherosa Ziehau 
363358880b0dSSepherosa Ziehau 	status = CSR_READ_4(sc, JME_INTR_STATUS);
363458880b0dSSepherosa Ziehau 	status &= (rdata->jme_rx_coal | rdata->jme_rx_empty);
363558880b0dSSepherosa Ziehau 
3636875547c0SSepherosa Ziehau 	if (status & rdata->jme_rx_coal)
363758880b0dSSepherosa Ziehau 		status |= (rdata->jme_rx_coal | rdata->jme_rx_comp);
363858880b0dSSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_STATUS, status);
363958880b0dSSepherosa Ziehau 
364058880b0dSSepherosa Ziehau 	if (ifp->if_flags & IFF_RUNNING) {
3641eda7db08SSepherosa Ziehau 		if (status & rdata->jme_rx_coal)
3642dea2452aSSepherosa Ziehau 			jme_rxeof(rdata, -1);
364358880b0dSSepherosa Ziehau 
364458880b0dSSepherosa Ziehau 		if (status & rdata->jme_rx_empty) {
364558880b0dSSepherosa Ziehau 			CSR_WRITE_4(sc, JME_RXCSR, sc->jme_rxcsr |
364658880b0dSSepherosa Ziehau 			    RXCSR_RX_ENB | RXCSR_RXQ_START);
364758880b0dSSepherosa Ziehau 		}
364858880b0dSSepherosa Ziehau 	}
3649875547c0SSepherosa Ziehau 
3650875547c0SSepherosa Ziehau 	CSR_WRITE_4(sc, JME_INTR_MASK_SET,
3651875547c0SSepherosa Ziehau 	    (rdata->jme_rx_coal | rdata->jme_rx_empty));
365258880b0dSSepherosa Ziehau }
365358880b0dSSepherosa Ziehau 
365458880b0dSSepherosa Ziehau static void
365558880b0dSSepherosa Ziehau jme_set_msinum(struct jme_softc *sc)
365658880b0dSSepherosa Ziehau {
365758880b0dSSepherosa Ziehau 	int i;
365858880b0dSSepherosa Ziehau 
365958880b0dSSepherosa Ziehau 	for (i = 0; i < JME_MSINUM_CNT; ++i)
366058880b0dSSepherosa Ziehau 		CSR_WRITE_4(sc, JME_MSINUM(i), sc->jme_msinum[i]);
366158880b0dSSepherosa Ziehau }
366258880b0dSSepherosa Ziehau 
366358880b0dSSepherosa Ziehau static int
366458880b0dSSepherosa Ziehau jme_intr_setup(device_t dev)
366558880b0dSSepherosa Ziehau {
366658880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
366758880b0dSSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
366858880b0dSSepherosa Ziehau 	int error;
366958880b0dSSepherosa Ziehau 
367058880b0dSSepherosa Ziehau 	if (sc->jme_irq_type == PCI_INTR_TYPE_MSIX)
367158880b0dSSepherosa Ziehau 		return jme_msix_setup(dev);
367258880b0dSSepherosa Ziehau 
367358880b0dSSepherosa Ziehau 	error = bus_setup_intr(dev, sc->jme_irq_res, INTR_MPSAFE,
367458880b0dSSepherosa Ziehau 	    jme_intr, sc, &sc->jme_irq_handle, &sc->jme_serialize);
367558880b0dSSepherosa Ziehau 	if (error) {
367658880b0dSSepherosa Ziehau 		device_printf(dev, "could not set up interrupt handler.\n");
367758880b0dSSepherosa Ziehau 		return error;
367858880b0dSSepherosa Ziehau 	}
367958880b0dSSepherosa Ziehau 
368058880b0dSSepherosa Ziehau 	ifp->if_cpuid = rman_get_cpuid(sc->jme_irq_res);
368158880b0dSSepherosa Ziehau 	KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
368258880b0dSSepherosa Ziehau 	return 0;
368358880b0dSSepherosa Ziehau }
368458880b0dSSepherosa Ziehau 
368558880b0dSSepherosa Ziehau static void
368658880b0dSSepherosa Ziehau jme_intr_teardown(device_t dev)
368758880b0dSSepherosa Ziehau {
368858880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
368958880b0dSSepherosa Ziehau 
369058880b0dSSepherosa Ziehau 	if (sc->jme_irq_type == PCI_INTR_TYPE_MSIX)
369158880b0dSSepherosa Ziehau 		jme_msix_teardown(dev, sc->jme_msix_cnt);
369258880b0dSSepherosa Ziehau 	else
369358880b0dSSepherosa Ziehau 		bus_teardown_intr(dev, sc->jme_irq_res, sc->jme_irq_handle);
369458880b0dSSepherosa Ziehau }
369558880b0dSSepherosa Ziehau 
369658880b0dSSepherosa Ziehau static int
369758880b0dSSepherosa Ziehau jme_msix_setup(device_t dev)
369858880b0dSSepherosa Ziehau {
369958880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
370058880b0dSSepherosa Ziehau 	struct ifnet *ifp = &sc->arpcom.ac_if;
370158880b0dSSepherosa Ziehau 	int x;
370258880b0dSSepherosa Ziehau 
370358880b0dSSepherosa Ziehau 	for (x = 0; x < sc->jme_msix_cnt; ++x) {
370458880b0dSSepherosa Ziehau 		struct jme_msix_data *msix = &sc->jme_msix[x];
370558880b0dSSepherosa Ziehau 		int error;
370658880b0dSSepherosa Ziehau 
370758880b0dSSepherosa Ziehau 		error = bus_setup_intr_descr(dev, msix->jme_msix_res,
370858880b0dSSepherosa Ziehau 		    INTR_MPSAFE, msix->jme_msix_func, msix->jme_msix_arg,
370958880b0dSSepherosa Ziehau 		    &msix->jme_msix_handle, msix->jme_msix_serialize,
371058880b0dSSepherosa Ziehau 		    msix->jme_msix_desc);
371158880b0dSSepherosa Ziehau 		if (error) {
371258880b0dSSepherosa Ziehau 			device_printf(dev, "could not set up %s "
371358880b0dSSepherosa Ziehau 			    "interrupt handler.\n", msix->jme_msix_desc);
371458880b0dSSepherosa Ziehau 			jme_msix_teardown(dev, x);
371558880b0dSSepherosa Ziehau 			return error;
371658880b0dSSepherosa Ziehau 		}
371758880b0dSSepherosa Ziehau 	}
371858880b0dSSepherosa Ziehau 	ifp->if_cpuid = 0; /* XXX */
371958880b0dSSepherosa Ziehau 	return 0;
372058880b0dSSepherosa Ziehau }
372158880b0dSSepherosa Ziehau 
372258880b0dSSepherosa Ziehau static void
372358880b0dSSepherosa Ziehau jme_msix_teardown(device_t dev, int msix_count)
372458880b0dSSepherosa Ziehau {
372558880b0dSSepherosa Ziehau 	struct jme_softc *sc = device_get_softc(dev);
372658880b0dSSepherosa Ziehau 	int x;
372758880b0dSSepherosa Ziehau 
372858880b0dSSepherosa Ziehau 	for (x = 0; x < msix_count; ++x) {
372958880b0dSSepherosa Ziehau 		struct jme_msix_data *msix = &sc->jme_msix[x];
373058880b0dSSepherosa Ziehau 
373158880b0dSSepherosa Ziehau 		bus_teardown_intr(dev, msix->jme_msix_res,
373258880b0dSSepherosa Ziehau 		    msix->jme_msix_handle);
373358880b0dSSepherosa Ziehau 	}
373458880b0dSSepherosa Ziehau }
3735*cccc3955SSepherosa Ziehau 
3736*cccc3955SSepherosa Ziehau static void
3737*cccc3955SSepherosa Ziehau jme_serialize_skipmain(struct jme_softc *sc)
3738*cccc3955SSepherosa Ziehau {
3739*cccc3955SSepherosa Ziehau 	lwkt_serialize_array_enter(sc->jme_serialize_arr,
3740*cccc3955SSepherosa Ziehau 	    sc->jme_serialize_cnt, 1);
3741*cccc3955SSepherosa Ziehau }
3742*cccc3955SSepherosa Ziehau 
3743*cccc3955SSepherosa Ziehau static void
3744*cccc3955SSepherosa Ziehau jme_deserialize_skipmain(struct jme_softc *sc)
3745*cccc3955SSepherosa Ziehau {
3746*cccc3955SSepherosa Ziehau 	lwkt_serialize_array_exit(sc->jme_serialize_arr,
3747*cccc3955SSepherosa Ziehau 	    sc->jme_serialize_cnt, 1);
3748*cccc3955SSepherosa Ziehau }
3749