2 * Copyright (c) 2010-2011 Juli Mallett <jmallett@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * Cavium Octeon management port Ethernet devices.
35 #include <sys/param.h>
36 #include <sys/systm.h>
38 #include <sys/endian.h>
39 #include <sys/kernel.h>
42 #include <sys/module.h>
43 #include <sys/mutex.h>
45 #include <sys/socket.h>
46 #include <sys/sockio.h>
47 #include <sys/sysctl.h>
50 #include <net/ethernet.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54 #include <net/if_types.h>
55 #include <net/if_var.h>
56 #include <net/if_vlan_var.h>
59 #include <netinet/in.h>
60 #include <netinet/if_ether.h>
63 #include <contrib/octeon-sdk/cvmx.h>
64 #include <contrib/octeon-sdk/cvmx-interrupt.h>
65 #include <contrib/octeon-sdk/cvmx-mgmt-port.h>
67 extern cvmx_bootinfo_t *octeon_bootinfo;
74 struct ifmedia sc_ifmedia;
75 struct resource *sc_intr;
79 static void octm_identify(driver_t *, device_t);
80 static int octm_probe(device_t);
81 static int octm_attach(device_t);
82 static int octm_detach(device_t);
83 static int octm_shutdown(device_t);
85 static void octm_init(void *);
86 static int octm_transmit(struct ifnet *, struct mbuf *);
88 static int octm_medchange(struct ifnet *);
89 static void octm_medstat(struct ifnet *, struct ifmediareq *);
91 static int octm_ioctl(struct ifnet *, u_long, caddr_t);
93 static void octm_rx_intr(void *);
95 static device_method_t octm_methods[] = {
96 /* Device interface */
97 DEVMETHOD(device_identify, octm_identify),
98 DEVMETHOD(device_probe, octm_probe),
99 DEVMETHOD(device_attach, octm_attach),
100 DEVMETHOD(device_detach, octm_detach),
101 DEVMETHOD(device_shutdown, octm_shutdown),
106 static driver_t octm_driver = {
109 sizeof (struct octm_softc),
112 static devclass_t octm_devclass;
114 DRIVER_MODULE(octm, ciu, octm_driver, octm_devclass, 0, 0);
117 octm_identify(driver_t *drv, device_t parent)
121 if (!octeon_has_feature(OCTEON_FEATURE_MGMT_PORT))
124 for (i = 0; i < CVMX_MGMT_PORT_NUM_PORTS; i++)
125 BUS_ADD_CHILD(parent, 0, "octm", i);
129 octm_probe(device_t dev)
131 cvmx_mgmt_port_result_t result;
133 result = cvmx_mgmt_port_initialize(device_get_unit(dev));
135 case CVMX_MGMT_PORT_SUCCESS:
137 case CVMX_MGMT_PORT_NO_MEMORY:
139 case CVMX_MGMT_PORT_INVALID_PARAM:
141 case CVMX_MGMT_PORT_INIT_ERROR:
145 device_set_desc(dev, "Cavium Octeon Management Ethernet");
151 octm_attach(device_t dev)
154 struct octm_softc *sc;
155 cvmx_mixx_irhwm_t mixx_irhwm;
156 cvmx_mixx_intena_t mixx_intena;
162 sc = device_get_softc(dev);
164 sc->sc_port = device_get_unit(dev);
166 switch (sc->sc_port) {
174 device_printf(dev, "unsupported management port %u.\n", sc->sc_port);
179 * Set MAC address for this management port.
182 memcpy((u_int8_t *)&mac + 2, octeon_bootinfo->mac_addr_base, 6);
184 cvmx_mgmt_port_set_mac(sc->sc_port, mac);
186 /* No watermark for input ring. */
188 cvmx_write_csr(CVMX_MIXX_IRHWM(sc->sc_port), mixx_irhwm.u64);
190 /* Enable input ring interrupts. */
192 mixx_intena.s.ithena = 1;
193 cvmx_write_csr(CVMX_MIXX_INTENA(sc->sc_port), mixx_intena.u64);
195 /* Allocate and establish interrupt. */
197 sc->sc_intr = bus_alloc_resource(sc->sc_dev, SYS_RES_IRQ, &rid,
198 irq, irq, 1, RF_ACTIVE);
199 if (sc->sc_intr == NULL) {
200 device_printf(dev, "unable to allocate IRQ.\n");
204 error = bus_setup_intr(sc->sc_dev, sc->sc_intr, INTR_TYPE_NET, NULL,
205 octm_rx_intr, sc, &sc->sc_intr_cookie);
207 device_printf(dev, "unable to setup interrupt.\n");
208 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_intr);
212 bus_describe_intr(sc->sc_dev, sc->sc_intr, sc->sc_intr_cookie, "rx");
214 /* XXX Possibly should enable TX interrupts. */
216 ifp = if_alloc(IFT_ETHER);
218 device_printf(dev, "cannot allocate ifnet.\n");
219 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_intr);
223 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
224 ifp->if_mtu = ETHERMTU;
225 ifp->if_init = octm_init;
227 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | IFF_ALLMULTI;
228 ifp->if_ioctl = octm_ioctl;
231 sc->sc_flags = ifp->if_flags;
233 ifmedia_init(&sc->sc_ifmedia, 0, octm_medchange, octm_medstat);
235 ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
236 ifmedia_set(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO);
238 ether_ifattach(ifp, (const u_int8_t *)&mac + 2);
240 ifp->if_transmit = octm_transmit;
242 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
243 ifp->if_capabilities = IFCAP_VLAN_MTU;
244 ifp->if_capenable = ifp->if_capabilities;
246 IFQ_SET_MAXLEN(&ifp->if_snd, CVMX_MGMT_PORT_NUM_TX_BUFFERS);
247 ifp->if_snd.ifq_drv_maxlen = CVMX_MGMT_PORT_NUM_TX_BUFFERS;
248 IFQ_SET_READY(&ifp->if_snd);
250 return (bus_generic_attach(dev));
254 octm_detach(device_t dev)
256 struct octm_softc *sc;
257 cvmx_mgmt_port_result_t result;
259 sc = device_get_softc(dev);
261 result = cvmx_mgmt_port_initialize(sc->sc_port);
263 case CVMX_MGMT_PORT_SUCCESS:
265 case CVMX_MGMT_PORT_NO_MEMORY:
267 case CVMX_MGMT_PORT_INVALID_PARAM:
269 case CVMX_MGMT_PORT_INIT_ERROR:
273 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_intr);
274 /* XXX Incomplete. */
280 octm_shutdown(device_t dev)
282 return (octm_detach(dev));
289 struct octm_softc *sc;
290 cvmx_mgmt_port_netdevice_flags_t flags;
296 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) {
297 cvmx_mgmt_port_disable(sc->sc_port);
299 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
302 if (((ifp->if_flags ^ sc->sc_flags) & (IFF_ALLMULTI | IFF_MULTICAST | IFF_PROMISC)) != 0) {
304 if ((ifp->if_flags & IFF_ALLMULTI) != 0)
305 flags |= CVMX_IFF_ALLMULTI;
306 if ((ifp->if_flags & IFF_PROMISC) != 0)
307 flags |= CVMX_IFF_PROMISC;
308 cvmx_mgmt_port_set_multicast_list(sc->sc_port, flags);
312 memcpy((u_int8_t *)&mac + 2, IF_LLADDR(ifp), 6);
313 cvmx_mgmt_port_set_mac(sc->sc_port, mac);
315 /* XXX link state? */
317 if ((ifp->if_flags & IFF_UP) != 0)
318 cvmx_mgmt_port_enable(sc->sc_port);
320 ifp->if_drv_flags |= IFF_DRV_RUNNING;
321 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
325 octm_transmit(struct ifnet *ifp, struct mbuf *m)
327 struct octm_softc *sc;
328 cvmx_mgmt_port_result_t result;
332 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
338 result = cvmx_mgmt_port_sendm(sc->sc_port, m);
340 if (result == CVMX_MGMT_PORT_SUCCESS) {
341 ETHER_BPF_MTAP(ifp, m);
344 ifp->if_obytes += m->m_pkthdr.len;
351 case CVMX_MGMT_PORT_SUCCESS:
353 case CVMX_MGMT_PORT_NO_MEMORY:
355 case CVMX_MGMT_PORT_INVALID_PARAM:
357 case CVMX_MGMT_PORT_INIT_ERROR:
365 octm_medchange(struct ifnet *ifp)
371 octm_medstat(struct ifnet *ifp, struct ifmediareq *ifm)
373 struct octm_softc *sc;
374 cvmx_helper_link_info_t link_info;
378 ifm->ifm_status = IFM_AVALID;
379 ifm->ifm_active = IFT_ETHER;
381 link_info = cvmx_mgmt_port_link_get(sc->sc_port);
382 if (!link_info.s.link_up)
385 ifm->ifm_status |= IFM_ACTIVE;
387 switch (link_info.s.speed) {
389 ifm->ifm_active |= IFM_10_T;
392 ifm->ifm_active |= IFM_100_TX;
395 ifm->ifm_active |= IFM_1000_T;
398 ifm->ifm_active |= IFM_10G_T;
402 if (link_info.s.full_duplex)
403 ifm->ifm_active |= IFM_FDX;
405 ifm->ifm_active |= IFM_HDX;
409 octm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
411 struct octm_softc *sc;
419 ifr = (struct ifreq *)data;
421 ifa = (struct ifaddr *)data;
428 * Avoid reinitialization unless it's necessary.
430 if (ifa->ifa_addr->sa_family == AF_INET) {
431 ifp->if_flags |= IFF_UP;
432 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
434 arp_ifinit(ifp, ifa);
439 error = ether_ioctl(ifp, cmd, data);
445 if (ifp->if_flags == sc->sc_flags)
447 if ((ifp->if_flags & IFF_UP) != 0) {
448 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
451 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) {
452 cvmx_mgmt_port_disable(sc->sc_port);
454 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
457 sc->sc_flags = ifp->if_flags;
462 * Just change the capabilities in software, currently none
463 * require reprogramming hardware, they just toggle whether we
464 * make use of already-present facilities in software.
466 ifp->if_capenable = ifr->ifr_reqcap;
470 cvmx_mgmt_port_set_max_packet_size(sc->sc_port, ifr->ifr_mtu + ifp->if_data.ifi_hdrlen);
475 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd);
481 error = ether_ioctl(ifp, cmd, data);
489 octm_rx_intr(void *arg)
491 struct octm_softc *sc = arg;
492 cvmx_mixx_isr_t mixx_isr;
495 mixx_isr.u64 = cvmx_read_csr(CVMX_MIXX_ISR(sc->sc_port));
496 if (!mixx_isr.s.irthresh) {
497 device_printf(sc->sc_dev, "stray interrupt.\n");
502 struct mbuf *m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
504 device_printf(sc->sc_dev, "no memory for receive mbuf.\n");
509 len = cvmx_mgmt_port_receive(sc->sc_port, MCLBYTES, m->m_data);
511 m->m_pkthdr.rcvif = sc->sc_ifp;
512 m->m_pkthdr.len = m->m_len = len;
514 sc->sc_ifp->if_ipackets++;
516 (*sc->sc_ifp->if_input)(sc->sc_ifp, m);
526 sc->sc_ifp->if_ierrors++;
529 /* Acknowledge interrupts. */
530 cvmx_write_csr(CVMX_MIXX_ISR(sc->sc_port), mixx_isr.u64);
531 cvmx_read_csr(CVMX_MIXX_ISR(sc->sc_port));