if_mvxpe.c revision 1.37
1 /* $NetBSD: if_mvxpe.c,v 1.37 2021/12/05 07:57:38 msaitoh Exp $ */ 2 /* 3 * Copyright (c) 2015 Internet Initiative Japan Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: if_mvxpe.c,v 1.37 2021/12/05 07:57:38 msaitoh Exp $"); 29 30 #include "opt_multiprocessor.h" 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/callout.h> 35 #include <sys/device.h> 36 #include <sys/endian.h> 37 #include <sys/errno.h> 38 #include <sys/evcnt.h> 39 #include <sys/kernel.h> 40 #include <sys/kmem.h> 41 #include <sys/mutex.h> 42 #include <sys/sockio.h> 43 #include <sys/sysctl.h> 44 #include <sys/syslog.h> 45 #include <sys/rndsource.h> 46 47 #include <net/if.h> 48 #include <net/if_ether.h> 49 #include <net/if_media.h> 50 #include <net/bpf.h> 51 52 #include <netinet/in.h> 53 #include <netinet/in_systm.h> 54 #include <netinet/ip.h> 55 56 #include <dev/mii/mii.h> 57 #include <dev/mii/miivar.h> 58 59 #include <dev/marvell/marvellreg.h> 60 #include <dev/marvell/marvellvar.h> 61 #include <dev/marvell/mvxpbmvar.h> 62 #include <dev/marvell/if_mvxpereg.h> 63 #include <dev/marvell/if_mvxpevar.h> 64 65 #include "locators.h" 66 67 #if BYTE_ORDER == BIG_ENDIAN 68 #error "BIG ENDIAN not supported" 69 #endif 70 71 #ifdef MVXPE_DEBUG 72 #define STATIC /* nothing */ 73 #else 74 #define STATIC static 75 #endif 76 77 /* autoconf(9) */ 78 STATIC int mvxpe_match(device_t, struct cfdata *, void *); 79 STATIC void mvxpe_attach(device_t, device_t, void *); 80 STATIC int mvxpe_evcnt_attach(struct mvxpe_softc *); 81 CFATTACH_DECL_NEW(mvxpe_mbus, sizeof(struct mvxpe_softc), 82 mvxpe_match, mvxpe_attach, NULL, NULL); 83 STATIC void mvxpe_sc_lock(struct mvxpe_softc *); 84 STATIC void mvxpe_sc_unlock(struct mvxpe_softc *); 85 86 /* MII */ 87 STATIC int mvxpe_miibus_readreg(device_t, int, int, uint16_t *); 88 STATIC int mvxpe_miibus_writereg(device_t, int, int, uint16_t); 89 STATIC void mvxpe_miibus_statchg(struct ifnet *); 90 91 /* Address Decoding Window */ 92 STATIC void mvxpe_wininit(struct mvxpe_softc *, enum marvell_tags *); 93 94 /* Device Register Initialization */ 95 STATIC int mvxpe_initreg(struct ifnet *); 96 97 /* Descriptor Ring Control for each of queues */ 98 STATIC void *mvxpe_dma_memalloc(struct mvxpe_softc *, bus_dmamap_t *, size_t); 99 STATIC int mvxpe_ring_alloc_queue(struct mvxpe_softc *, int); 100 STATIC void mvxpe_ring_dealloc_queue(struct mvxpe_softc *, int); 101 STATIC void mvxpe_ring_init_queue(struct mvxpe_softc *, int); 102 STATIC void mvxpe_ring_flush_queue(struct mvxpe_softc *, int); 103 STATIC void mvxpe_ring_sync_rx(struct mvxpe_softc *, int, int, int, int); 104 STATIC void mvxpe_ring_sync_tx(struct mvxpe_softc *, int, int, int, int); 105 106 /* Rx/Tx Queue Control */ 107 STATIC int mvxpe_rx_queue_init(struct ifnet *, int); 108 STATIC int mvxpe_tx_queue_init(struct ifnet *, int); 109 STATIC int mvxpe_rx_queue_enable(struct ifnet *, int); 110 STATIC int mvxpe_tx_queue_enable(struct ifnet *, int); 111 STATIC void mvxpe_rx_lockq(struct mvxpe_softc *, int); 112 STATIC void mvxpe_rx_unlockq(struct mvxpe_softc *, int); 113 STATIC void mvxpe_tx_lockq(struct mvxpe_softc *, int); 114 STATIC void mvxpe_tx_unlockq(struct mvxpe_softc *, int); 115 116 /* Interrupt Handlers */ 117 STATIC void mvxpe_disable_intr(struct mvxpe_softc *); 118 STATIC void mvxpe_enable_intr(struct mvxpe_softc *); 119 STATIC int mvxpe_rxtxth_intr(void *); 120 STATIC int mvxpe_misc_intr(void *); 121 STATIC int mvxpe_rxtx_intr(void *); 122 STATIC void mvxpe_tick(void *); 123 124 /* struct ifnet and mii callbacks*/ 125 STATIC void mvxpe_start(struct ifnet *); 126 STATIC int mvxpe_ioctl(struct ifnet *, u_long, void *); 127 STATIC int mvxpe_init(struct ifnet *); 128 STATIC void mvxpe_stop(struct ifnet *, int); 129 STATIC void mvxpe_watchdog(struct ifnet *); 130 STATIC int mvxpe_ifflags_cb(struct ethercom *); 131 STATIC int mvxpe_mediachange(struct ifnet *); 132 STATIC void mvxpe_mediastatus(struct ifnet *, struct ifmediareq *); 133 134 /* Link State Notify */ 135 STATIC void mvxpe_linkupdate(struct mvxpe_softc *sc); 136 STATIC void mvxpe_linkup(struct mvxpe_softc *); 137 STATIC void mvxpe_linkdown(struct mvxpe_softc *); 138 STATIC void mvxpe_linkreset(struct mvxpe_softc *); 139 140 /* Tx Subroutines */ 141 STATIC int mvxpe_tx_queue_select(struct mvxpe_softc *, struct mbuf *); 142 STATIC int mvxpe_tx_queue(struct mvxpe_softc *, struct mbuf *, int); 143 STATIC void mvxpe_tx_set_csumflag(struct ifnet *, 144 struct mvxpe_tx_desc *, struct mbuf *); 145 STATIC void mvxpe_tx_complete(struct mvxpe_softc *, uint32_t); 146 STATIC void mvxpe_tx_queue_complete(struct mvxpe_softc *, int); 147 148 /* Rx Subroutines */ 149 STATIC void mvxpe_rx(struct mvxpe_softc *, uint32_t); 150 STATIC void mvxpe_rx_queue(struct mvxpe_softc *, int, int); 151 STATIC int mvxpe_rx_queue_select(struct mvxpe_softc *, uint32_t, int *); 152 STATIC void mvxpe_rx_refill(struct mvxpe_softc *, uint32_t); 153 STATIC void mvxpe_rx_queue_refill(struct mvxpe_softc *, int); 154 STATIC int mvxpe_rx_queue_add(struct mvxpe_softc *, int); 155 STATIC void mvxpe_rx_set_csumflag(struct ifnet *, 156 struct mvxpe_rx_desc *, struct mbuf *); 157 158 /* MAC address filter */ 159 STATIC uint8_t mvxpe_crc8(const uint8_t *, size_t); 160 STATIC void mvxpe_filter_setup(struct mvxpe_softc *); 161 162 /* sysctl(9) */ 163 STATIC int sysctl_read_mib(SYSCTLFN_PROTO); 164 STATIC int sysctl_clear_mib(SYSCTLFN_PROTO); 165 STATIC int sysctl_set_queue_length(SYSCTLFN_PROTO); 166 STATIC int sysctl_set_queue_rxthtime(SYSCTLFN_PROTO); 167 STATIC void sysctl_mvxpe_init(struct mvxpe_softc *); 168 169 /* MIB */ 170 STATIC void mvxpe_clear_mib(struct mvxpe_softc *); 171 STATIC void mvxpe_update_mib(struct mvxpe_softc *); 172 173 /* for Debug */ 174 STATIC void mvxpe_dump_txdesc(struct mvxpe_tx_desc *, int) __attribute__((__unused__)); 175 STATIC void mvxpe_dump_rxdesc(struct mvxpe_rx_desc *, int) __attribute__((__unused__)); 176 177 STATIC int mvxpe_root_num; 178 STATIC kmutex_t mii_mutex; 179 STATIC int mii_init = 0; 180 #ifdef MVXPE_DEBUG 181 STATIC int mvxpe_debug = MVXPE_DEBUG; 182 #endif 183 184 /* 185 * List of MIB register and names 186 */ 187 STATIC struct mvxpe_mib_def { 188 uint32_t regnum; 189 int reg64; 190 const char *sysctl_name; 191 const char *desc; 192 int ext; 193 #define MVXPE_MIBEXT_IF_OERRORS 1 194 #define MVXPE_MIBEXT_IF_IERRORS 2 195 #define MVXPE_MIBEXT_IF_COLLISIONS 3 196 } mvxpe_mib_list[] = { 197 {MVXPE_MIB_RX_GOOD_OCT, 1, "rx_good_oct", 198 "Good Octets Rx", 0}, 199 {MVXPE_MIB_RX_BAD_OCT, 0, "rx_bad_oct", 200 "Bad Octets Rx", 0}, 201 {MVXPE_MIB_TX_MAC_TRNS_ERR, 0, "tx_mac_err", 202 "MAC Transmit Error", MVXPE_MIBEXT_IF_OERRORS}, 203 {MVXPE_MIB_RX_GOOD_FRAME, 0, "rx_good_frame", 204 "Good Frames Rx", 0}, 205 {MVXPE_MIB_RX_BAD_FRAME, 0, "rx_bad_frame", 206 "Bad Frames Rx", 0}, 207 {MVXPE_MIB_RX_BCAST_FRAME, 0, "rx_bcast_frame", 208 "Broadcast Frames Rx", 0}, 209 {MVXPE_MIB_RX_MCAST_FRAME, 0, "rx_mcast_frame", 210 "Multicast Frames Rx", 0}, 211 {MVXPE_MIB_RX_FRAME64_OCT, 0, "rx_frame_1_64", 212 "Frame Size 1 - 64", 0}, 213 {MVXPE_MIB_RX_FRAME127_OCT, 0, "rx_frame_65_127", 214 "Frame Size 65 - 127", 0}, 215 {MVXPE_MIB_RX_FRAME255_OCT, 0, "rx_frame_128_255", 216 "Frame Size 128 - 255", 0}, 217 {MVXPE_MIB_RX_FRAME511_OCT, 0, "rx_frame_256_511", 218 "Frame Size 256 - 511"}, 219 {MVXPE_MIB_RX_FRAME1023_OCT, 0, "rx_frame_512_1023", 220 "Frame Size 512 - 1023", 0}, 221 {MVXPE_MIB_RX_FRAMEMAX_OCT, 0, "rx_frame_1024_max", 222 "Frame Size 1024 - Max", 0}, 223 {MVXPE_MIB_TX_GOOD_OCT, 1, "tx_good_oct", 224 "Good Octets Tx", 0}, 225 {MVXPE_MIB_TX_GOOD_FRAME, 0, "tx_good_frame", 226 "Good Frames Tx", 0}, 227 {MVXPE_MIB_TX_EXCES_COL, 0, "tx_exces_collision", 228 "Excessive Collision", MVXPE_MIBEXT_IF_OERRORS}, 229 {MVXPE_MIB_TX_MCAST_FRAME, 0, "tx_mcast_frame", 230 "Multicast Frames Tx"}, 231 {MVXPE_MIB_TX_BCAST_FRAME, 0, "tx_bcast_frame", 232 "Broadcast Frames Tx"}, 233 {MVXPE_MIB_TX_MAC_CTL_ERR, 0, "tx_mac_err", 234 "Unknown MAC Control", 0}, 235 {MVXPE_MIB_FC_SENT, 0, "fc_tx", 236 "Flow Control Tx", 0}, 237 {MVXPE_MIB_FC_GOOD, 0, "fc_rx_good", 238 "Good Flow Control Rx", 0}, 239 {MVXPE_MIB_FC_BAD, 0, "fc_rx_bad", 240 "Bad Flow Control Rx", 0}, 241 {MVXPE_MIB_PKT_UNDERSIZE, 0, "pkt_undersize", 242 "Undersized Packets Rx", MVXPE_MIBEXT_IF_IERRORS}, 243 {MVXPE_MIB_PKT_FRAGMENT, 0, "pkt_fragment", 244 "Fragmented Packets Rx", MVXPE_MIBEXT_IF_IERRORS}, 245 {MVXPE_MIB_PKT_OVERSIZE, 0, "pkt_oversize", 246 "Oversized Packets Rx", MVXPE_MIBEXT_IF_IERRORS}, 247 {MVXPE_MIB_PKT_JABBER, 0, "pkt_jabber", 248 "Jabber Packets Rx", MVXPE_MIBEXT_IF_IERRORS}, 249 {MVXPE_MIB_MAC_RX_ERR, 0, "mac_rx_err", 250 "MAC Rx Errors", MVXPE_MIBEXT_IF_IERRORS}, 251 {MVXPE_MIB_MAC_CRC_ERR, 0, "mac_crc_err", 252 "MAC CRC Errors", MVXPE_MIBEXT_IF_IERRORS}, 253 {MVXPE_MIB_MAC_COL, 0, "mac_collision", 254 "MAC Collision", MVXPE_MIBEXT_IF_COLLISIONS}, 255 {MVXPE_MIB_MAC_LATE_COL, 0, "mac_late_collision", 256 "MAC Late Collision", MVXPE_MIBEXT_IF_OERRORS}, 257 }; 258 259 /* 260 * autoconf(9) 261 */ 262 /* ARGSUSED */ 263 STATIC int 264 mvxpe_match(device_t parent, cfdata_t match, void *aux) 265 { 266 struct marvell_attach_args *mva = aux; 267 bus_size_t pv_off; 268 uint32_t pv; 269 270 if (strcmp(mva->mva_name, match->cf_name) != 0) 271 return 0; 272 if (mva->mva_offset == MVA_OFFSET_DEFAULT) 273 return 0; 274 275 /* check port version */ 276 pv_off = mva->mva_offset + MVXPE_PV; 277 pv = bus_space_read_4(mva->mva_iot, mva->mva_ioh, pv_off); 278 if (MVXPE_PV_GET_VERSION(pv) < 0x10) 279 return 0; /* old version is not supported */ 280 281 return 1; 282 } 283 284 /* ARGSUSED */ 285 STATIC void 286 mvxpe_attach(device_t parent, device_t self, void *aux) 287 { 288 struct mvxpe_softc *sc = device_private(self); 289 struct mii_softc *child; 290 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 291 struct mii_data * const mii = &sc->sc_mii; 292 struct marvell_attach_args *mva = aux; 293 prop_dictionary_t dict; 294 prop_data_t enaddrp = NULL; 295 uint32_t phyaddr, maddrh, maddrl; 296 uint8_t enaddr[ETHER_ADDR_LEN]; 297 int q; 298 299 aprint_naive("\n"); 300 aprint_normal(": Marvell ARMADA GbE Controller\n"); 301 memset(sc, 0, sizeof(*sc)); 302 sc->sc_dev = self; 303 sc->sc_port = mva->mva_unit; 304 sc->sc_iot = mva->mva_iot; 305 sc->sc_dmat = mva->mva_dmat; 306 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NET); 307 callout_init(&sc->sc_tick_ch, 0); 308 callout_setfunc(&sc->sc_tick_ch, mvxpe_tick, sc); 309 310 /* 311 * BUS space 312 */ 313 if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, 314 mva->mva_offset, mva->mva_size, &sc->sc_ioh)) { 315 aprint_error_dev(self, "Cannot map registers\n"); 316 goto fail; 317 } 318 if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, 319 mva->mva_offset + MVXPE_PORTMIB_BASE, MVXPE_PORTMIB_SIZE, 320 &sc->sc_mibh)) { 321 aprint_error_dev(self, 322 "Cannot map destination address filter registers\n"); 323 goto fail; 324 } 325 sc->sc_version = MVXPE_READ(sc, MVXPE_PV); 326 aprint_normal_dev(self, "Port Version %#x\n", sc->sc_version); 327 328 /* 329 * Buffer Manager(BM) subsystem. 330 */ 331 sc->sc_bm = mvxpbm_device(mva); 332 if (sc->sc_bm == NULL) { 333 aprint_error_dev(self, "no Buffer Manager.\n"); 334 goto fail; 335 } 336 aprint_normal_dev(self, 337 "Using Buffer Manager: %s\n", mvxpbm_xname(sc->sc_bm)); 338 aprint_normal_dev(sc->sc_dev, 339 "%zu kbytes managed buffer, %zu bytes * %u entries allocated.\n", 340 mvxpbm_buf_size(sc->sc_bm) / 1024, 341 mvxpbm_chunk_size(sc->sc_bm), mvxpbm_chunk_count(sc->sc_bm)); 342 343 /* 344 * make sure DMA engines are in reset state 345 */ 346 MVXPE_WRITE(sc, MVXPE_PRXINIT, 0x00000001); 347 MVXPE_WRITE(sc, MVXPE_PTXINIT, 0x00000001); 348 349 /* 350 * Address decoding window 351 */ 352 mvxpe_wininit(sc, mva->mva_tags); 353 354 /* 355 * MAC address 356 */ 357 dict = device_properties(self); 358 if (dict) 359 enaddrp = prop_dictionary_get(dict, "mac-address"); 360 if (enaddrp) { 361 memcpy(enaddr, prop_data_data_nocopy(enaddrp), ETHER_ADDR_LEN); 362 maddrh = enaddr[0] << 24; 363 maddrh |= enaddr[1] << 16; 364 maddrh |= enaddr[2] << 8; 365 maddrh |= enaddr[3]; 366 maddrl = enaddr[4] << 8; 367 maddrl |= enaddr[5]; 368 MVXPE_WRITE(sc, MVXPE_MACAH, maddrh); 369 MVXPE_WRITE(sc, MVXPE_MACAL, maddrl); 370 } 371 else { 372 /* 373 * even if enaddr is not found in dictionary, 374 * the port may be initialized by IPL program such as U-BOOT. 375 */ 376 maddrh = MVXPE_READ(sc, MVXPE_MACAH); 377 maddrl = MVXPE_READ(sc, MVXPE_MACAL); 378 if ((maddrh | maddrl) == 0) { 379 aprint_error_dev(self, "No Ethernet address\n"); 380 return; 381 } 382 } 383 sc->sc_enaddr[0] = maddrh >> 24; 384 sc->sc_enaddr[1] = maddrh >> 16; 385 sc->sc_enaddr[2] = maddrh >> 8; 386 sc->sc_enaddr[3] = maddrh >> 0; 387 sc->sc_enaddr[4] = maddrl >> 8; 388 sc->sc_enaddr[5] = maddrl >> 0; 389 aprint_normal_dev(self, "Ethernet address %s\n", 390 ether_sprintf(sc->sc_enaddr)); 391 392 /* 393 * Register interrupt handlers 394 * XXX: handle Ethernet unit intr. and Error intr. 395 */ 396 mvxpe_disable_intr(sc); 397 marvell_intr_establish(mva->mva_irq, IPL_NET, mvxpe_rxtxth_intr, sc); 398 399 /* 400 * MIB buffer allocation 401 */ 402 sc->sc_sysctl_mib_size = 403 __arraycount(mvxpe_mib_list) * sizeof(struct mvxpe_sysctl_mib); 404 sc->sc_sysctl_mib = kmem_alloc(sc->sc_sysctl_mib_size, KM_SLEEP); 405 memset(sc->sc_sysctl_mib, 0, sc->sc_sysctl_mib_size); 406 407 /* 408 * Device DMA Buffer allocation 409 */ 410 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 411 if (mvxpe_ring_alloc_queue(sc, q) != 0) 412 goto fail; 413 mvxpe_ring_init_queue(sc, q); 414 } 415 416 /* 417 * We can support 802.1Q VLAN-sized frames and jumbo 418 * Ethernet frames. 419 */ 420 sc->sc_ethercom.ec_capabilities |= 421 ETHERCAP_VLAN_MTU | ETHERCAP_JUMBO_MTU; 422 ifp->if_softc = sc; 423 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 424 ifp->if_start = mvxpe_start; 425 ifp->if_ioctl = mvxpe_ioctl; 426 ifp->if_init = mvxpe_init; 427 ifp->if_stop = mvxpe_stop; 428 ifp->if_watchdog = mvxpe_watchdog; 429 430 /* 431 * We can do IPv4/TCPv4/UDPv4/TCPv6/UDPv6 checksums in hardware. 432 */ 433 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Tx; 434 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Rx; 435 ifp->if_capabilities |= IFCAP_CSUM_TCPv4_Tx; 436 ifp->if_capabilities |= IFCAP_CSUM_TCPv4_Rx; 437 ifp->if_capabilities |= IFCAP_CSUM_UDPv4_Tx; 438 ifp->if_capabilities |= IFCAP_CSUM_UDPv4_Rx; 439 ifp->if_capabilities |= IFCAP_CSUM_TCPv6_Tx; 440 ifp->if_capabilities |= IFCAP_CSUM_TCPv6_Rx; 441 ifp->if_capabilities |= IFCAP_CSUM_UDPv6_Tx; 442 ifp->if_capabilities |= IFCAP_CSUM_UDPv6_Rx; 443 444 /* 445 * Initialize struct ifnet 446 */ 447 IFQ_SET_MAXLEN(&ifp->if_snd, uimax(MVXPE_TX_RING_CNT - 1, IFQ_MAXLEN)); 448 IFQ_SET_READY(&ifp->if_snd); 449 strlcpy(ifp->if_xname, device_xname(sc->sc_dev), sizeof(ifp->if_xname)); 450 451 /* 452 * Enable DMA engines and Initiazlie Device Registers. 453 */ 454 MVXPE_WRITE(sc, MVXPE_PRXINIT, 0x00000000); 455 MVXPE_WRITE(sc, MVXPE_PTXINIT, 0x00000000); 456 MVXPE_WRITE(sc, MVXPE_PACC, MVXPE_PACC_ACCELERATIONMODE_EDM); 457 mvxpe_sc_lock(sc); /* XXX */ 458 mvxpe_filter_setup(sc); 459 mvxpe_sc_unlock(sc); 460 mvxpe_initreg(ifp); 461 462 /* 463 * Now MAC is working, setup MII. 464 */ 465 if (mii_init == 0) { 466 /* 467 * MII bus is shared by all MACs and all PHYs in SoC. 468 * serializing the bus access should be safe. 469 */ 470 mutex_init(&mii_mutex, MUTEX_DEFAULT, IPL_NET); 471 mii_init = 1; 472 } 473 mii->mii_ifp = ifp; 474 mii->mii_readreg = mvxpe_miibus_readreg; 475 mii->mii_writereg = mvxpe_miibus_writereg; 476 mii->mii_statchg = mvxpe_miibus_statchg; 477 478 sc->sc_ethercom.ec_mii = mii; 479 ifmedia_init(&mii->mii_media, 0, mvxpe_mediachange, mvxpe_mediastatus); 480 /* 481 * XXX: phy addressing highly depends on Board Design. 482 * we assume phyaddress == MAC unit number here, 483 * but some boards may not. 484 */ 485 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, sc->sc_dev->dv_unit, 0); 486 child = LIST_FIRST(&mii->mii_phys); 487 if (child == NULL) { 488 aprint_error_dev(self, "no PHY found!\n"); 489 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_MANUAL, 0, NULL); 490 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_MANUAL); 491 } else { 492 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 493 phyaddr = MVXPE_PHYADDR_PHYAD(child->mii_phy); 494 MVXPE_WRITE(sc, MVXPE_PHYADDR, phyaddr); 495 DPRINTSC(sc, 1, "PHYADDR: %#x\n", MVXPE_READ(sc, MVXPE_PHYADDR)); 496 } 497 498 /* 499 * Call MI attach routines. 500 */ 501 if_attach(ifp); 502 if_deferred_start_init(ifp, NULL); 503 504 ether_ifattach(ifp, sc->sc_enaddr); 505 ether_set_ifflags_cb(&sc->sc_ethercom, mvxpe_ifflags_cb); 506 507 sysctl_mvxpe_init(sc); 508 mvxpe_evcnt_attach(sc); 509 rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev), 510 RND_TYPE_NET, RND_FLAG_DEFAULT); 511 512 return; 513 514 fail: 515 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) 516 mvxpe_ring_dealloc_queue(sc, q); 517 if (sc->sc_sysctl_mib) 518 kmem_free(sc->sc_sysctl_mib, sc->sc_sysctl_mib_size); 519 520 return; 521 } 522 523 STATIC int 524 mvxpe_evcnt_attach(struct mvxpe_softc *sc) 525 { 526 #ifdef MVXPE_EVENT_COUNTERS 527 int q; 528 529 /* Master Interrupt Handler */ 530 evcnt_attach_dynamic(&sc->sc_ev.ev_i_rxtxth, EVCNT_TYPE_INTR, 531 NULL, device_xname(sc->sc_dev), "RxTxTH Intr."); 532 evcnt_attach_dynamic(&sc->sc_ev.ev_i_rxtx, EVCNT_TYPE_INTR, 533 NULL, device_xname(sc->sc_dev), "RxTx Intr."); 534 evcnt_attach_dynamic(&sc->sc_ev.ev_i_misc, EVCNT_TYPE_INTR, 535 NULL, device_xname(sc->sc_dev), "MISC Intr."); 536 537 /* RXTXTH Interrupt */ 538 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtxth_txerr, EVCNT_TYPE_INTR, 539 NULL, device_xname(sc->sc_dev), "RxTxTH Tx error summary"); 540 541 /* MISC Interrupt */ 542 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_phystatuschng, EVCNT_TYPE_INTR, 543 NULL, device_xname(sc->sc_dev), "MISC phy status changed"); 544 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_linkchange, EVCNT_TYPE_INTR, 545 NULL, device_xname(sc->sc_dev), "MISC link status changed"); 546 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_iae, EVCNT_TYPE_INTR, 547 NULL, device_xname(sc->sc_dev), "MISC internal address error"); 548 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_rxoverrun, EVCNT_TYPE_INTR, 549 NULL, device_xname(sc->sc_dev), "MISC Rx FIFO overrun"); 550 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_rxcrc, EVCNT_TYPE_INTR, 551 NULL, device_xname(sc->sc_dev), "MISC Rx CRC error"); 552 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_rxlargepacket, EVCNT_TYPE_INTR, 553 NULL, device_xname(sc->sc_dev), "MISC Rx too large frame"); 554 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_txunderrun, EVCNT_TYPE_INTR, 555 NULL, device_xname(sc->sc_dev), "MISC Tx FIFO underrun"); 556 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_prbserr, EVCNT_TYPE_INTR, 557 NULL, device_xname(sc->sc_dev), "MISC SERDES loopback test err"); 558 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_srse, EVCNT_TYPE_INTR, 559 NULL, device_xname(sc->sc_dev), "MISC SERDES sync error"); 560 evcnt_attach_dynamic(&sc->sc_ev.ev_misc_txreq, EVCNT_TYPE_INTR, 561 NULL, device_xname(sc->sc_dev), "MISC Tx resource error"); 562 563 /* RxTx Interrupt */ 564 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_rreq, EVCNT_TYPE_INTR, 565 NULL, device_xname(sc->sc_dev), "RxTx Rx resource error"); 566 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_rpq, EVCNT_TYPE_INTR, 567 NULL, device_xname(sc->sc_dev), "RxTx Rx packet"); 568 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_tbrq, EVCNT_TYPE_INTR, 569 NULL, device_xname(sc->sc_dev), "RxTx Tx complete"); 570 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_rxtxth, EVCNT_TYPE_INTR, 571 NULL, device_xname(sc->sc_dev), "RxTx RxTxTH summary"); 572 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_txerr, EVCNT_TYPE_INTR, 573 NULL, device_xname(sc->sc_dev), "RxTx Tx error summary"); 574 evcnt_attach_dynamic(&sc->sc_ev.ev_rxtx_misc, EVCNT_TYPE_INTR, 575 NULL, device_xname(sc->sc_dev), "RxTx MISC summary"); 576 577 /* Link */ 578 evcnt_attach_dynamic(&sc->sc_ev.ev_link_up, EVCNT_TYPE_MISC, 579 NULL, device_xname(sc->sc_dev), "link up"); 580 evcnt_attach_dynamic(&sc->sc_ev.ev_link_down, EVCNT_TYPE_MISC, 581 NULL, device_xname(sc->sc_dev), "link down"); 582 583 /* Rx Descriptor */ 584 evcnt_attach_dynamic(&sc->sc_ev.ev_rxd_ce, EVCNT_TYPE_MISC, 585 NULL, device_xname(sc->sc_dev), "Rx CRC error counter"); 586 evcnt_attach_dynamic(&sc->sc_ev.ev_rxd_or, EVCNT_TYPE_MISC, 587 NULL, device_xname(sc->sc_dev), "Rx FIFO overrun counter"); 588 evcnt_attach_dynamic(&sc->sc_ev.ev_rxd_mf, EVCNT_TYPE_MISC, 589 NULL, device_xname(sc->sc_dev), "Rx too large frame counter"); 590 evcnt_attach_dynamic(&sc->sc_ev.ev_rxd_re, EVCNT_TYPE_MISC, 591 NULL, device_xname(sc->sc_dev), "Rx resource error counter"); 592 evcnt_attach_dynamic(&sc->sc_ev.ev_rxd_scat, EVCNT_TYPE_MISC, 593 NULL, device_xname(sc->sc_dev), "Rx unexpected scatter bufs"); 594 595 /* Tx Descriptor */ 596 evcnt_attach_dynamic(&sc->sc_ev.ev_txd_lc, EVCNT_TYPE_MISC, 597 NULL, device_xname(sc->sc_dev), "Tx late collision counter"); 598 evcnt_attach_dynamic(&sc->sc_ev.ev_txd_rl, EVCNT_TYPE_MISC, 599 NULL, device_xname(sc->sc_dev), "Tx excess. collision counter"); 600 evcnt_attach_dynamic(&sc->sc_ev.ev_txd_ur, EVCNT_TYPE_MISC, 601 NULL, device_xname(sc->sc_dev), "Tx FIFO underrun counter"); 602 evcnt_attach_dynamic(&sc->sc_ev.ev_txd_oth, EVCNT_TYPE_MISC, 603 NULL, device_xname(sc->sc_dev), "Tx unknown error counter"); 604 605 /* Status Registers */ 606 evcnt_attach_dynamic(&sc->sc_ev.ev_reg_pdfc, EVCNT_TYPE_MISC, 607 NULL, device_xname(sc->sc_dev), "Rx discard counter"); 608 evcnt_attach_dynamic(&sc->sc_ev.ev_reg_pofc, EVCNT_TYPE_MISC, 609 NULL, device_xname(sc->sc_dev), "Rx overrun counter"); 610 evcnt_attach_dynamic(&sc->sc_ev.ev_reg_txbadfcs, EVCNT_TYPE_MISC, 611 NULL, device_xname(sc->sc_dev), "Tx bad FCS counter"); 612 evcnt_attach_dynamic(&sc->sc_ev.ev_reg_txdropped, EVCNT_TYPE_MISC, 613 NULL, device_xname(sc->sc_dev), "Tx dropped counter"); 614 evcnt_attach_dynamic(&sc->sc_ev.ev_reg_lpic, EVCNT_TYPE_MISC, 615 NULL, device_xname(sc->sc_dev), "LP_IDLE counter"); 616 617 /* Device Driver Errors */ 618 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_wdogsoft, EVCNT_TYPE_MISC, 619 NULL, device_xname(sc->sc_dev), "watchdog timer expired"); 620 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_txerr, EVCNT_TYPE_MISC, 621 NULL, device_xname(sc->sc_dev), "Tx descriptor alloc failed"); 622 #define MVXPE_QUEUE_DESC(q) "Rx success in queue " # q 623 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 624 static const char *rxq_desc[] = { 625 MVXPE_QUEUE_DESC(0), MVXPE_QUEUE_DESC(1), 626 MVXPE_QUEUE_DESC(2), MVXPE_QUEUE_DESC(3), 627 MVXPE_QUEUE_DESC(4), MVXPE_QUEUE_DESC(5), 628 MVXPE_QUEUE_DESC(6), MVXPE_QUEUE_DESC(7), 629 }; 630 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_rxq[q], EVCNT_TYPE_MISC, 631 NULL, device_xname(sc->sc_dev), rxq_desc[q]); 632 } 633 #undef MVXPE_QUEUE_DESC 634 #define MVXPE_QUEUE_DESC(q) "Tx success in queue " # q 635 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 636 static const char *txq_desc[] = { 637 MVXPE_QUEUE_DESC(0), MVXPE_QUEUE_DESC(1), 638 MVXPE_QUEUE_DESC(2), MVXPE_QUEUE_DESC(3), 639 MVXPE_QUEUE_DESC(4), MVXPE_QUEUE_DESC(5), 640 MVXPE_QUEUE_DESC(6), MVXPE_QUEUE_DESC(7), 641 }; 642 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_txq[q], EVCNT_TYPE_MISC, 643 NULL, device_xname(sc->sc_dev), txq_desc[q]); 644 } 645 #undef MVXPE_QUEUE_DESC 646 #define MVXPE_QUEUE_DESC(q) "Rx error in queue " # q 647 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 648 static const char *rxqe_desc[] = { 649 MVXPE_QUEUE_DESC(0), MVXPE_QUEUE_DESC(1), 650 MVXPE_QUEUE_DESC(2), MVXPE_QUEUE_DESC(3), 651 MVXPE_QUEUE_DESC(4), MVXPE_QUEUE_DESC(5), 652 MVXPE_QUEUE_DESC(6), MVXPE_QUEUE_DESC(7), 653 }; 654 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_rxqe[q], EVCNT_TYPE_MISC, 655 NULL, device_xname(sc->sc_dev), rxqe_desc[q]); 656 } 657 #undef MVXPE_QUEUE_DESC 658 #define MVXPE_QUEUE_DESC(q) "Tx error in queue " # q 659 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 660 static const char *txqe_desc[] = { 661 MVXPE_QUEUE_DESC(0), MVXPE_QUEUE_DESC(1), 662 MVXPE_QUEUE_DESC(2), MVXPE_QUEUE_DESC(3), 663 MVXPE_QUEUE_DESC(4), MVXPE_QUEUE_DESC(5), 664 MVXPE_QUEUE_DESC(6), MVXPE_QUEUE_DESC(7), 665 }; 666 evcnt_attach_dynamic(&sc->sc_ev.ev_drv_txqe[q], EVCNT_TYPE_MISC, 667 NULL, device_xname(sc->sc_dev), txqe_desc[q]); 668 } 669 #undef MVXPE_QUEUE_DESC 670 671 #endif /* MVXPE_EVENT_COUNTERS */ 672 return 0; 673 } 674 675 STATIC void 676 mvxpe_sc_lock(struct mvxpe_softc *sc) 677 { 678 mutex_enter(&sc->sc_mtx); 679 } 680 681 STATIC void 682 mvxpe_sc_unlock(struct mvxpe_softc *sc) 683 { 684 mutex_exit(&sc->sc_mtx); 685 } 686 687 /* 688 * MII 689 */ 690 STATIC int 691 mvxpe_miibus_readreg(device_t dev, int phy, int reg, uint16_t *val) 692 { 693 struct mvxpe_softc *sc = device_private(dev); 694 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 695 uint32_t smi; 696 int i, rv = 0; 697 698 mutex_enter(&mii_mutex); 699 700 for (i = 0; i < MVXPE_PHY_TIMEOUT; i++) { 701 DELAY(1); 702 if (!(MVXPE_READ(sc, MVXPE_SMI) & MVXPE_SMI_BUSY)) 703 break; 704 } 705 if (i == MVXPE_PHY_TIMEOUT) { 706 aprint_error_ifnet(ifp, "SMI busy timeout\n"); 707 rv = ETIMEDOUT; 708 goto out; 709 } 710 711 smi = 712 MVXPE_SMI_PHYAD(phy) | MVXPE_SMI_REGAD(reg) | MVXPE_SMI_OPCODE_READ; 713 MVXPE_WRITE(sc, MVXPE_SMI, smi); 714 715 for (i = 0; i < MVXPE_PHY_TIMEOUT; i++) { 716 DELAY(1); 717 smi = MVXPE_READ(sc, MVXPE_SMI); 718 if (smi & MVXPE_SMI_READVALID) { 719 *val = smi & MVXPE_SMI_DATA_MASK; 720 break; 721 } 722 } 723 DPRINTDEV(dev, 9, "i=%d, timeout=%d\n", i, MVXPE_PHY_TIMEOUT); 724 if (i >= MVXPE_PHY_TIMEOUT) 725 rv = ETIMEDOUT; 726 727 out: 728 mutex_exit(&mii_mutex); 729 730 DPRINTDEV(dev, 9, "phy=%d, reg=%#x, val=%#hx\n", phy, reg, *val); 731 732 return rv; 733 } 734 735 STATIC int 736 mvxpe_miibus_writereg(device_t dev, int phy, int reg, uint16_t val) 737 { 738 struct mvxpe_softc *sc = device_private(dev); 739 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 740 uint32_t smi; 741 int i, rv = 0; 742 743 DPRINTDEV(dev, 9, "phy=%d reg=%#x val=%#hx\n", phy, reg, val); 744 745 mutex_enter(&mii_mutex); 746 747 for (i = 0; i < MVXPE_PHY_TIMEOUT; i++) { 748 DELAY(1); 749 if (!(MVXPE_READ(sc, MVXPE_SMI) & MVXPE_SMI_BUSY)) 750 break; 751 } 752 if (i == MVXPE_PHY_TIMEOUT) { 753 aprint_error_ifnet(ifp, "SMI busy timeout\n"); 754 rv = ETIMEDOUT; 755 goto out; 756 } 757 758 smi = MVXPE_SMI_PHYAD(phy) | MVXPE_SMI_REGAD(reg) | 759 MVXPE_SMI_OPCODE_WRITE | (val & MVXPE_SMI_DATA_MASK); 760 MVXPE_WRITE(sc, MVXPE_SMI, smi); 761 762 for (i = 0; i < MVXPE_PHY_TIMEOUT; i++) { 763 DELAY(1); 764 if (!(MVXPE_READ(sc, MVXPE_SMI) & MVXPE_SMI_BUSY)) 765 break; 766 } 767 768 if (i == MVXPE_PHY_TIMEOUT) { 769 aprint_error_ifnet(ifp, "phy write timed out\n"); 770 rv = ETIMEDOUT; 771 } 772 773 out: 774 mutex_exit(&mii_mutex); 775 776 return rv; 777 } 778 779 STATIC void 780 mvxpe_miibus_statchg(struct ifnet *ifp) 781 { 782 783 /* nothing to do */ 784 } 785 786 /* 787 * Address Decoding Window 788 */ 789 STATIC void 790 mvxpe_wininit(struct mvxpe_softc *sc, enum marvell_tags *tags) 791 { 792 device_t pdev = device_parent(sc->sc_dev); 793 uint64_t base; 794 uint32_t en, ac, size; 795 int window, target, attr, rv, i; 796 797 /* First disable all address decode windows */ 798 en = MVXPE_BARE_EN_MASK; 799 MVXPE_WRITE(sc, MVXPE_BARE, en); 800 801 ac = 0; 802 for (window = 0, i = 0; 803 tags[i] != MARVELL_TAG_UNDEFINED && window < MVXPE_NWINDOW; i++) { 804 rv = marvell_winparams_by_tag(pdev, tags[i], 805 &target, &attr, &base, &size); 806 if (rv != 0 || size == 0) 807 continue; 808 809 if (base > 0xffffffffULL) { 810 if (window >= MVXPE_NREMAP) { 811 aprint_error_dev(sc->sc_dev, 812 "can't remap window %d\n", window); 813 continue; 814 } 815 MVXPE_WRITE(sc, MVXPE_HA(window), 816 (base >> 32) & 0xffffffff); 817 } 818 819 MVXPE_WRITE(sc, MVXPE_BASEADDR(window), 820 MVXPE_BASEADDR_TARGET(target) | 821 MVXPE_BASEADDR_ATTR(attr) | 822 MVXPE_BASEADDR_BASE(base)); 823 MVXPE_WRITE(sc, MVXPE_S(window), MVXPE_S_SIZE(size)); 824 825 DPRINTSC(sc, 1, "Window %d Base 0x%016llx: Size 0x%08x\n", 826 window, base, size); 827 828 en &= ~(1 << window); 829 /* set full access (r/w) */ 830 ac |= MVXPE_EPAP_EPAR(window, MVXPE_EPAP_AC_FA); 831 window++; 832 } 833 /* allow to access decode window */ 834 MVXPE_WRITE(sc, MVXPE_EPAP, ac); 835 836 MVXPE_WRITE(sc, MVXPE_BARE, en); 837 } 838 839 /* 840 * Device Register Initialization 841 * reset device registers to device driver default value. 842 * the device is not enabled here. 843 */ 844 STATIC int 845 mvxpe_initreg(struct ifnet *ifp) 846 { 847 struct mvxpe_softc *sc = ifp->if_softc; 848 int serdes = 0; 849 uint32_t reg; 850 int q, i; 851 852 DPRINTIFNET(ifp, 1, "initializing device register\n"); 853 854 /* Init TX/RX Queue Registers */ 855 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 856 mvxpe_rx_lockq(sc, q); 857 if (mvxpe_rx_queue_init(ifp, q) != 0) { 858 aprint_error_ifnet(ifp, 859 "initialization failed: cannot initialize queue\n"); 860 mvxpe_rx_unlockq(sc, q); 861 return ENOBUFS; 862 } 863 mvxpe_rx_unlockq(sc, q); 864 865 mvxpe_tx_lockq(sc, q); 866 if (mvxpe_tx_queue_init(ifp, q) != 0) { 867 aprint_error_ifnet(ifp, 868 "initialization failed: cannot initialize queue\n"); 869 mvxpe_tx_unlockq(sc, q); 870 return ENOBUFS; 871 } 872 mvxpe_tx_unlockq(sc, q); 873 } 874 875 /* Tx MTU Limit */ 876 MVXPE_WRITE(sc, MVXPE_TXMTU, MVXPE_MTU); 877 878 /* Check SGMII or SERDES(assume IPL/U-BOOT initialize this) */ 879 reg = MVXPE_READ(sc, MVXPE_PMACC0); 880 if ((reg & MVXPE_PMACC0_PORTTYPE) != 0) 881 serdes = 1; 882 883 /* Ethernet Unit Control */ 884 reg = MVXPE_READ(sc, MVXPE_EUC); 885 reg |= MVXPE_EUC_POLLING; 886 MVXPE_WRITE(sc, MVXPE_EUC, reg); 887 888 /* Auto Negotiation */ 889 reg = MVXPE_PANC_MUSTSET; /* must write 0x1 */ 890 reg |= MVXPE_PANC_FORCELINKFAIL;/* force link state down */ 891 reg |= MVXPE_PANC_ANSPEEDEN; /* interface speed negotiation */ 892 reg |= MVXPE_PANC_ANDUPLEXEN; /* negotiate duplex mode */ 893 if (serdes) { 894 reg |= MVXPE_PANC_INBANDANEN; /* In Band negotiation */ 895 reg |= MVXPE_PANC_INBANDANBYPASSEN; /* bypass negotiation */ 896 reg |= MVXPE_PANC_SETFULLDX; /* set full-duplex on failure */ 897 } 898 MVXPE_WRITE(sc, MVXPE_PANC, reg); 899 900 /* EEE: Low Power Idle */ 901 reg = MVXPE_LPIC0_LILIMIT(MVXPE_LPI_LI); 902 reg |= MVXPE_LPIC0_TSLIMIT(MVXPE_LPI_TS); 903 MVXPE_WRITE(sc, MVXPE_LPIC0, reg); 904 905 reg = MVXPE_LPIC1_TWLIMIT(MVXPE_LPI_TS); 906 MVXPE_WRITE(sc, MVXPE_LPIC1, reg); 907 908 reg = MVXPE_LPIC2_MUSTSET; 909 MVXPE_WRITE(sc, MVXPE_LPIC2, reg); 910 911 /* Port MAC Control set 0 */ 912 reg = MVXPE_PMACC0_MUSTSET; /* must write 0x1 */ 913 reg &= ~MVXPE_PMACC0_PORTEN; /* port is still disabled */ 914 reg |= MVXPE_PMACC0_FRAMESIZELIMIT(MVXPE_MRU); 915 if (serdes) 916 reg |= MVXPE_PMACC0_PORTTYPE; 917 MVXPE_WRITE(sc, MVXPE_PMACC0, reg); 918 919 /* Port MAC Control set 1 is only used for loop-back test */ 920 921 /* Port MAC Control set 2 */ 922 reg = MVXPE_READ(sc, MVXPE_PMACC2); 923 reg &= (MVXPE_PMACC2_PCSEN | MVXPE_PMACC2_RGMIIEN); 924 reg |= MVXPE_PMACC2_MUSTSET; 925 MVXPE_WRITE(sc, MVXPE_PMACC2, reg); 926 927 /* Port MAC Control set 3 is used for IPG tune */ 928 929 /* Port MAC Control set 4 is not used */ 930 931 /* Port Configuration */ 932 /* Use queue 0 only */ 933 reg = MVXPE_READ(sc, MVXPE_PXC); 934 reg &= ~(MVXPE_PXC_RXQ_MASK | MVXPE_PXC_RXQARP_MASK | 935 MVXPE_PXC_TCPQ_MASK | MVXPE_PXC_UDPQ_MASK | MVXPE_PXC_BPDUQ_MASK); 936 MVXPE_WRITE(sc, MVXPE_PXC, reg); 937 938 /* Port Configuration Extended: enable Tx CRC generation */ 939 reg = MVXPE_READ(sc, MVXPE_PXCX); 940 reg &= ~MVXPE_PXCX_TXCRCDIS; 941 MVXPE_WRITE(sc, MVXPE_PXCX, reg); 942 943 /* clear MIB counter registers(clear by read) */ 944 for (i = 0; i < __arraycount(mvxpe_mib_list); i++) 945 MVXPE_READ_MIB(sc, (mvxpe_mib_list[i].regnum)); 946 947 /* Set SDC register except IPGINT bits */ 948 reg = MVXPE_SDC_RXBSZ_16_64BITWORDS; 949 reg |= MVXPE_SDC_TXBSZ_16_64BITWORDS; 950 reg |= MVXPE_SDC_BLMR; 951 reg |= MVXPE_SDC_BLMT; 952 MVXPE_WRITE(sc, MVXPE_SDC, reg); 953 954 return 0; 955 } 956 957 /* 958 * Descriptor Ring Controls for each of queues 959 */ 960 STATIC void * 961 mvxpe_dma_memalloc(struct mvxpe_softc *sc, bus_dmamap_t *map, size_t size) 962 { 963 bus_dma_segment_t segs; 964 void *kva = NULL; 965 int nsegs; 966 967 /* 968 * Allocate the descriptor queues. 969 * struct mvxpe_ring_data contians array of descriptor per queue. 970 */ 971 if (bus_dmamem_alloc(sc->sc_dmat, 972 size, PAGE_SIZE, 0, &segs, 1, &nsegs, BUS_DMA_NOWAIT)) { 973 aprint_error_dev(sc->sc_dev, 974 "can't alloc device memory (%zu bytes)\n", size); 975 return NULL; 976 } 977 if (bus_dmamem_map(sc->sc_dmat, 978 &segs, nsegs, size, &kva, BUS_DMA_NOWAIT)) { 979 aprint_error_dev(sc->sc_dev, 980 "can't map dma buffers (%zu bytes)\n", size); 981 goto fail1; 982 } 983 984 if (bus_dmamap_create(sc->sc_dmat, 985 size, 1, size, 0, BUS_DMA_NOWAIT, map)) { 986 aprint_error_dev(sc->sc_dev, "can't create dma map\n"); 987 goto fail2; 988 } 989 if (bus_dmamap_load(sc->sc_dmat, 990 *map, kva, size, NULL, BUS_DMA_NOWAIT)) { 991 aprint_error_dev(sc->sc_dev, "can't load dma map\n"); 992 goto fail3; 993 } 994 memset(kva, 0, size); 995 return kva; 996 997 fail3: 998 bus_dmamap_destroy(sc->sc_dmat, *map); 999 memset(map, 0, sizeof(*map)); 1000 fail2: 1001 bus_dmamem_unmap(sc->sc_dmat, kva, size); 1002 fail1: 1003 bus_dmamem_free(sc->sc_dmat, &segs, nsegs); 1004 return NULL; 1005 } 1006 1007 STATIC int 1008 mvxpe_ring_alloc_queue(struct mvxpe_softc *sc, int q) 1009 { 1010 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1011 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1012 1013 /* 1014 * MVXPE_RX_RING_CNT and MVXPE_TX_RING_CNT is a hard limit of 1015 * queue length. real queue length is limited by 1016 * sc->sc_rx_ring[q].rx_queue_len and sc->sc_tx_ring[q].tx_queue_len. 1017 * 1018 * because descriptor ring reallocation needs reprogramming of 1019 * DMA registers, we allocate enough descriptor for hard limit 1020 * of queue length. 1021 */ 1022 rx->rx_descriptors = 1023 mvxpe_dma_memalloc(sc, &rx->rx_descriptors_map, 1024 (sizeof(struct mvxpe_rx_desc) * MVXPE_RX_RING_CNT)); 1025 if (rx->rx_descriptors == NULL) 1026 goto fail; 1027 1028 tx->tx_descriptors = 1029 mvxpe_dma_memalloc(sc, &tx->tx_descriptors_map, 1030 (sizeof(struct mvxpe_tx_desc) * MVXPE_TX_RING_CNT)); 1031 if (tx->tx_descriptors == NULL) 1032 goto fail; 1033 1034 return 0; 1035 fail: 1036 mvxpe_ring_dealloc_queue(sc, q); 1037 aprint_error_dev(sc->sc_dev, "DMA Ring buffer allocation failure.\n"); 1038 return ENOMEM; 1039 } 1040 1041 STATIC void 1042 mvxpe_ring_dealloc_queue(struct mvxpe_softc *sc, int q) 1043 { 1044 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1045 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1046 bus_dma_segment_t *segs; 1047 bus_size_t size; 1048 void *kva; 1049 int nsegs; 1050 1051 /* Rx */ 1052 kva = (void *)MVXPE_RX_RING_MEM_VA(sc, q); 1053 if (kva) { 1054 segs = MVXPE_RX_RING_MEM_MAP(sc, q)->dm_segs; 1055 nsegs = MVXPE_RX_RING_MEM_MAP(sc, q)->dm_nsegs; 1056 size = MVXPE_RX_RING_MEM_MAP(sc, q)->dm_mapsize; 1057 1058 bus_dmamap_unload(sc->sc_dmat, MVXPE_RX_RING_MEM_MAP(sc, q)); 1059 bus_dmamap_destroy(sc->sc_dmat, MVXPE_RX_RING_MEM_MAP(sc, q)); 1060 bus_dmamem_unmap(sc->sc_dmat, kva, size); 1061 bus_dmamem_free(sc->sc_dmat, segs, nsegs); 1062 } 1063 1064 /* Tx */ 1065 kva = (void *)MVXPE_TX_RING_MEM_VA(sc, q); 1066 if (kva) { 1067 segs = MVXPE_TX_RING_MEM_MAP(sc, q)->dm_segs; 1068 nsegs = MVXPE_TX_RING_MEM_MAP(sc, q)->dm_nsegs; 1069 size = MVXPE_TX_RING_MEM_MAP(sc, q)->dm_mapsize; 1070 1071 bus_dmamap_unload(sc->sc_dmat, MVXPE_TX_RING_MEM_MAP(sc, q)); 1072 bus_dmamap_destroy(sc->sc_dmat, MVXPE_TX_RING_MEM_MAP(sc, q)); 1073 bus_dmamem_unmap(sc->sc_dmat, kva, size); 1074 bus_dmamem_free(sc->sc_dmat, segs, nsegs); 1075 } 1076 1077 /* Clear doungling pointers all */ 1078 memset(rx, 0, sizeof(*rx)); 1079 memset(tx, 0, sizeof(*tx)); 1080 } 1081 1082 STATIC void 1083 mvxpe_ring_init_queue(struct mvxpe_softc *sc, int q) 1084 { 1085 struct mvxpe_rx_desc *rxd = MVXPE_RX_RING_MEM_VA(sc, q); 1086 struct mvxpe_tx_desc *txd = MVXPE_TX_RING_MEM_VA(sc, q); 1087 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1088 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1089 static const int rx_default_queue_len[] = { 1090 MVXPE_RX_QUEUE_LIMIT_0, MVXPE_RX_QUEUE_LIMIT_1, 1091 MVXPE_RX_QUEUE_LIMIT_2, MVXPE_RX_QUEUE_LIMIT_3, 1092 MVXPE_RX_QUEUE_LIMIT_4, MVXPE_RX_QUEUE_LIMIT_5, 1093 MVXPE_RX_QUEUE_LIMIT_6, MVXPE_RX_QUEUE_LIMIT_7, 1094 }; 1095 static const int tx_default_queue_len[] = { 1096 MVXPE_TX_QUEUE_LIMIT_0, MVXPE_TX_QUEUE_LIMIT_1, 1097 MVXPE_TX_QUEUE_LIMIT_2, MVXPE_TX_QUEUE_LIMIT_3, 1098 MVXPE_TX_QUEUE_LIMIT_4, MVXPE_TX_QUEUE_LIMIT_5, 1099 MVXPE_TX_QUEUE_LIMIT_6, MVXPE_TX_QUEUE_LIMIT_7, 1100 }; 1101 extern uint32_t mvTclk; 1102 int i; 1103 1104 /* Rx handle */ 1105 for (i = 0; i < MVXPE_RX_RING_CNT; i++) { 1106 MVXPE_RX_DESC(sc, q, i) = &rxd[i]; 1107 MVXPE_RX_DESC_OFF(sc, q, i) = sizeof(struct mvxpe_rx_desc) * i; 1108 MVXPE_RX_PKTBUF(sc, q, i) = NULL; 1109 } 1110 mutex_init(&rx->rx_ring_mtx, MUTEX_DEFAULT, IPL_NET); 1111 rx->rx_dma = rx->rx_cpu = 0; 1112 rx->rx_queue_len = rx_default_queue_len[q]; 1113 if (rx->rx_queue_len > MVXPE_RX_RING_CNT) 1114 rx->rx_queue_len = MVXPE_RX_RING_CNT; 1115 rx->rx_queue_th_received = rx->rx_queue_len / MVXPE_RXTH_RATIO; 1116 rx->rx_queue_th_free = rx->rx_queue_len / MVXPE_RXTH_REFILL_RATIO; 1117 rx->rx_queue_th_time = (mvTclk / 1000) / 2; /* 0.5 [ms] */ 1118 1119 /* Tx handle */ 1120 for (i = 0; i < MVXPE_TX_RING_CNT; i++) { 1121 MVXPE_TX_DESC(sc, q, i) = &txd[i]; 1122 MVXPE_TX_DESC_OFF(sc, q, i) = sizeof(struct mvxpe_tx_desc) * i; 1123 MVXPE_TX_MBUF(sc, q, i) = NULL; 1124 /* Tx handle needs DMA map for busdma_load_mbuf() */ 1125 if (bus_dmamap_create(sc->sc_dmat, 1126 mvxpbm_chunk_size(sc->sc_bm), 1127 MVXPE_TX_SEGLIMIT, mvxpbm_chunk_size(sc->sc_bm), 0, 1128 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1129 &MVXPE_TX_MAP(sc, q, i))) { 1130 aprint_error_dev(sc->sc_dev, 1131 "can't create dma map (tx ring %d)\n", i); 1132 } 1133 } 1134 mutex_init(&tx->tx_ring_mtx, MUTEX_DEFAULT, IPL_NET); 1135 tx->tx_dma = tx->tx_cpu = 0; 1136 tx->tx_queue_len = tx_default_queue_len[q]; 1137 if (tx->tx_queue_len > MVXPE_TX_RING_CNT) 1138 tx->tx_queue_len = MVXPE_TX_RING_CNT; 1139 tx->tx_used = 0; 1140 tx->tx_queue_th_free = tx->tx_queue_len / MVXPE_TXTH_RATIO; 1141 } 1142 1143 STATIC void 1144 mvxpe_ring_flush_queue(struct mvxpe_softc *sc, int q) 1145 { 1146 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1147 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1148 struct mbuf *m; 1149 int i; 1150 1151 KASSERT_RX_MTX(sc, q); 1152 KASSERT_TX_MTX(sc, q); 1153 1154 /* Rx handle */ 1155 for (i = 0; i < MVXPE_RX_RING_CNT; i++) { 1156 if (MVXPE_RX_PKTBUF(sc, q, i) == NULL) 1157 continue; 1158 mvxpbm_free_chunk(MVXPE_RX_PKTBUF(sc, q, i)); 1159 MVXPE_RX_PKTBUF(sc, q, i) = NULL; 1160 } 1161 rx->rx_dma = rx->rx_cpu = 0; 1162 1163 /* Tx handle */ 1164 for (i = 0; i < MVXPE_TX_RING_CNT; i++) { 1165 m = MVXPE_TX_MBUF(sc, q, i); 1166 if (m == NULL) 1167 continue; 1168 MVXPE_TX_MBUF(sc, q, i) = NULL; 1169 bus_dmamap_sync(sc->sc_dmat, 1170 MVXPE_TX_MAP(sc, q, i), 0, m->m_pkthdr.len, 1171 BUS_DMASYNC_POSTWRITE); 1172 bus_dmamap_unload(sc->sc_dmat, MVXPE_TX_MAP(sc, q, i)); 1173 m_freem(m); 1174 } 1175 tx->tx_dma = tx->tx_cpu = 0; 1176 tx->tx_used = 0; 1177 } 1178 1179 STATIC void 1180 mvxpe_ring_sync_rx(struct mvxpe_softc *sc, int q, int idx, int count, int ops) 1181 { 1182 int wrap; 1183 1184 KASSERT_RX_MTX(sc, q); 1185 KASSERT(count > 0 && count <= MVXPE_RX_RING_CNT); 1186 KASSERT(idx >= 0 && idx < MVXPE_RX_RING_CNT); 1187 1188 wrap = (idx + count) - MVXPE_RX_RING_CNT; 1189 if (wrap > 0) { 1190 count -= wrap; 1191 KASSERT(count > 0); 1192 bus_dmamap_sync(sc->sc_dmat, MVXPE_RX_RING_MEM_MAP(sc, q), 1193 0, sizeof(struct mvxpe_rx_desc) * wrap, ops); 1194 } 1195 bus_dmamap_sync(sc->sc_dmat, MVXPE_RX_RING_MEM_MAP(sc, q), 1196 MVXPE_RX_DESC_OFF(sc, q, idx), 1197 sizeof(struct mvxpe_rx_desc) * count, ops); 1198 } 1199 1200 STATIC void 1201 mvxpe_ring_sync_tx(struct mvxpe_softc *sc, int q, int idx, int count, int ops) 1202 { 1203 int wrap = 0; 1204 1205 KASSERT_TX_MTX(sc, q); 1206 KASSERT(count > 0 && count <= MVXPE_TX_RING_CNT); 1207 KASSERT(idx >= 0 && idx < MVXPE_TX_RING_CNT); 1208 1209 wrap = (idx + count) - MVXPE_TX_RING_CNT; 1210 if (wrap > 0) { 1211 count -= wrap; 1212 bus_dmamap_sync(sc->sc_dmat, MVXPE_TX_RING_MEM_MAP(sc, q), 1213 0, sizeof(struct mvxpe_tx_desc) * wrap, ops); 1214 } 1215 bus_dmamap_sync(sc->sc_dmat, MVXPE_TX_RING_MEM_MAP(sc, q), 1216 MVXPE_TX_DESC_OFF(sc, q, idx), 1217 sizeof(struct mvxpe_tx_desc) * count, ops); 1218 } 1219 1220 /* 1221 * Rx/Tx Queue Control 1222 */ 1223 STATIC int 1224 mvxpe_rx_queue_init(struct ifnet *ifp, int q) 1225 { 1226 struct mvxpe_softc *sc = ifp->if_softc; 1227 uint32_t reg; 1228 1229 KASSERT_RX_MTX(sc, q); 1230 KASSERT(MVXPE_RX_RING_MEM_PA(sc, q) != 0); 1231 1232 /* descriptor address */ 1233 MVXPE_WRITE(sc, MVXPE_PRXDQA(q), MVXPE_RX_RING_MEM_PA(sc, q)); 1234 1235 /* Rx buffer size and descriptor ring size */ 1236 reg = MVXPE_PRXDQS_BUFFERSIZE(mvxpbm_chunk_size(sc->sc_bm) >> 3); 1237 reg |= MVXPE_PRXDQS_DESCRIPTORSQUEUESIZE(MVXPE_RX_RING_CNT); 1238 MVXPE_WRITE(sc, MVXPE_PRXDQS(q), reg); 1239 DPRINTIFNET(ifp, 1, "PRXDQS(%d): %#x\n", 1240 q, MVXPE_READ(sc, MVXPE_PRXDQS(q))); 1241 1242 /* Rx packet offset address */ 1243 reg = MVXPE_PRXC_PACKETOFFSET(mvxpbm_packet_offset(sc->sc_bm) >> 3); 1244 MVXPE_WRITE(sc, MVXPE_PRXC(q), reg); 1245 DPRINTIFNET(ifp, 1, "PRXC(%d): %#x\n", 1246 q, MVXPE_READ(sc, MVXPE_PRXC(q))); 1247 1248 /* Rx DMA SNOOP */ 1249 reg = MVXPE_PRXSNP_SNOOPNOOFBYTES(MVXPE_MRU); 1250 reg |= MVXPE_PRXSNP_L2DEPOSITNOOFBYTES(MVXPE_MRU); 1251 MVXPE_WRITE(sc, MVXPE_PRXSNP(q), reg); 1252 1253 /* if DMA is not working, register is not updated */ 1254 KASSERT(MVXPE_READ(sc, MVXPE_PRXDQA(q)) == MVXPE_RX_RING_MEM_PA(sc, q)); 1255 return 0; 1256 } 1257 1258 STATIC int 1259 mvxpe_tx_queue_init(struct ifnet *ifp, int q) 1260 { 1261 struct mvxpe_softc *sc = ifp->if_softc; 1262 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1263 uint32_t reg; 1264 1265 KASSERT_TX_MTX(sc, q); 1266 KASSERT(MVXPE_TX_RING_MEM_PA(sc, q) != 0); 1267 1268 /* descriptor address */ 1269 MVXPE_WRITE(sc, MVXPE_PTXDQA(q), MVXPE_TX_RING_MEM_PA(sc, q)); 1270 1271 /* Tx threshold, and descriptor ring size */ 1272 reg = MVXPE_PTXDQS_TBT(tx->tx_queue_th_free); 1273 reg |= MVXPE_PTXDQS_DQS(MVXPE_TX_RING_CNT); 1274 MVXPE_WRITE(sc, MVXPE_PTXDQS(q), reg); 1275 DPRINTIFNET(ifp, 1, "PTXDQS(%d): %#x\n", 1276 q, MVXPE_READ(sc, MVXPE_PTXDQS(q))); 1277 1278 /* if DMA is not working, register is not updated */ 1279 KASSERT(MVXPE_READ(sc, MVXPE_PTXDQA(q)) == MVXPE_TX_RING_MEM_PA(sc, q)); 1280 return 0; 1281 } 1282 1283 STATIC int 1284 mvxpe_rx_queue_enable(struct ifnet *ifp, int q) 1285 { 1286 struct mvxpe_softc *sc = ifp->if_softc; 1287 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1288 uint32_t reg; 1289 1290 KASSERT_RX_MTX(sc, q); 1291 1292 /* Set Rx interrupt threshold */ 1293 reg = MVXPE_PRXDQTH_ODT(rx->rx_queue_th_received); 1294 reg |= MVXPE_PRXDQTH_NODT(rx->rx_queue_th_free); 1295 MVXPE_WRITE(sc, MVXPE_PRXDQTH(q), reg); 1296 1297 reg = MVXPE_PRXITTH_RITT(rx->rx_queue_th_time); 1298 MVXPE_WRITE(sc, MVXPE_PRXITTH(q), reg); 1299 1300 /* Unmask RXTX_TH Intr. */ 1301 reg = MVXPE_READ(sc, MVXPE_PRXTXTIM); 1302 reg |= MVXPE_PRXTXTI_RBICTAPQ(q); /* Rx Buffer Interrupt Coalese */ 1303 reg |= MVXPE_PRXTXTI_RDTAQ(q); /* Rx Descriptor Alart */ 1304 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, reg); 1305 1306 /* Enable Rx queue */ 1307 reg = MVXPE_READ(sc, MVXPE_RQC) & MVXPE_RQC_EN_MASK; 1308 reg |= MVXPE_RQC_ENQ(q); 1309 MVXPE_WRITE(sc, MVXPE_RQC, reg); 1310 1311 return 0; 1312 } 1313 1314 STATIC int 1315 mvxpe_tx_queue_enable(struct ifnet *ifp, int q) 1316 { 1317 struct mvxpe_softc *sc = ifp->if_softc; 1318 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1319 uint32_t reg; 1320 1321 KASSERT_TX_MTX(sc, q); 1322 1323 /* Set Tx interrupt threshold */ 1324 reg = MVXPE_READ(sc, MVXPE_PTXDQS(q)); 1325 reg &= ~MVXPE_PTXDQS_TBT_MASK; /* keep queue size */ 1326 reg |= MVXPE_PTXDQS_TBT(tx->tx_queue_th_free); 1327 MVXPE_WRITE(sc, MVXPE_PTXDQS(q), reg); 1328 1329 /* Unmask RXTX_TH Intr. */ 1330 reg = MVXPE_READ(sc, MVXPE_PRXTXTIM); 1331 reg |= MVXPE_PRXTXTI_TBTCQ(q); /* Tx Threshold cross */ 1332 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, reg); 1333 1334 /* Don't update MVXPE_TQC here, there is no packet yet. */ 1335 return 0; 1336 } 1337 1338 STATIC void 1339 mvxpe_rx_lockq(struct mvxpe_softc *sc, int q) 1340 { 1341 KASSERT(q >= 0); 1342 KASSERT(q < MVXPE_QUEUE_SIZE); 1343 mutex_enter(&sc->sc_rx_ring[q].rx_ring_mtx); 1344 } 1345 1346 STATIC void 1347 mvxpe_rx_unlockq(struct mvxpe_softc *sc, int q) 1348 { 1349 KASSERT(q >= 0); 1350 KASSERT(q < MVXPE_QUEUE_SIZE); 1351 mutex_exit(&sc->sc_rx_ring[q].rx_ring_mtx); 1352 } 1353 1354 STATIC void 1355 mvxpe_tx_lockq(struct mvxpe_softc *sc, int q) 1356 { 1357 KASSERT(q >= 0); 1358 KASSERT(q < MVXPE_QUEUE_SIZE); 1359 mutex_enter(&sc->sc_tx_ring[q].tx_ring_mtx); 1360 } 1361 1362 STATIC void 1363 mvxpe_tx_unlockq(struct mvxpe_softc *sc, int q) 1364 { 1365 KASSERT(q >= 0); 1366 KASSERT(q < MVXPE_QUEUE_SIZE); 1367 mutex_exit(&sc->sc_tx_ring[q].tx_ring_mtx); 1368 } 1369 1370 /* 1371 * Interrupt Handlers 1372 */ 1373 STATIC void 1374 mvxpe_disable_intr(struct mvxpe_softc *sc) 1375 { 1376 MVXPE_WRITE(sc, MVXPE_EUIM, 0); 1377 MVXPE_WRITE(sc, MVXPE_EUIC, 0); 1378 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, 0); 1379 MVXPE_WRITE(sc, MVXPE_PRXTXTIC, 0); 1380 MVXPE_WRITE(sc, MVXPE_PRXTXIM, 0); 1381 MVXPE_WRITE(sc, MVXPE_PRXTXIC, 0); 1382 MVXPE_WRITE(sc, MVXPE_PMIM, 0); 1383 MVXPE_WRITE(sc, MVXPE_PMIC, 0); 1384 MVXPE_WRITE(sc, MVXPE_PIE, 0); 1385 } 1386 1387 STATIC void 1388 mvxpe_enable_intr(struct mvxpe_softc *sc) 1389 { 1390 uint32_t reg; 1391 1392 /* Enable Port MISC Intr. (via RXTX_TH_Summary bit) */ 1393 reg = MVXPE_READ(sc, MVXPE_PMIM); 1394 reg |= MVXPE_PMI_PHYSTATUSCHNG; 1395 reg |= MVXPE_PMI_LINKCHANGE; 1396 reg |= MVXPE_PMI_IAE; 1397 reg |= MVXPE_PMI_RXOVERRUN; 1398 reg |= MVXPE_PMI_RXCRCERROR; 1399 reg |= MVXPE_PMI_RXLARGEPACKET; 1400 reg |= MVXPE_PMI_TXUNDRN; 1401 #if 0 1402 /* 1403 * The device may raise false interrupts for SERDES even if the device 1404 * is not configured to use SERDES connection. 1405 */ 1406 reg |= MVXPE_PMI_PRBSERROR; 1407 reg |= MVXPE_PMI_SRSE; 1408 #else 1409 reg &= ~MVXPE_PMI_PRBSERROR; 1410 reg &= ~MVXPE_PMI_SRSE; 1411 #endif 1412 reg |= MVXPE_PMI_TREQ_MASK; 1413 MVXPE_WRITE(sc, MVXPE_PMIM, reg); 1414 1415 /* Enable Summary Bit to check all interrupt cause. */ 1416 reg = MVXPE_READ(sc, MVXPE_PRXTXTIM); 1417 reg |= MVXPE_PRXTXTI_PMISCICSUMMARY; 1418 reg |= MVXPE_PRXTXTI_PTXERRORSUMMARY; 1419 reg |= MVXPE_PRXTXTI_PRXTXICSUMMARY; 1420 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, reg); 1421 1422 /* Enable All Queue Interrupt */ 1423 reg = MVXPE_READ(sc, MVXPE_PIE); 1424 reg |= MVXPE_PIE_RXPKTINTRPTENB_MASK; 1425 reg |= MVXPE_PIE_TXPKTINTRPTENB_MASK; 1426 MVXPE_WRITE(sc, MVXPE_PIE, reg); 1427 } 1428 1429 STATIC int 1430 mvxpe_rxtxth_intr(void *arg) 1431 { 1432 struct mvxpe_softc *sc = arg; 1433 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1434 uint32_t ic, queues, datum = 0; 1435 1436 DPRINTSC(sc, 2, "got RXTX_TH_Intr\n"); 1437 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_i_rxtxth); 1438 1439 mvxpe_sc_lock(sc); 1440 ic = MVXPE_READ(sc, MVXPE_PRXTXTIC); 1441 if (ic == 0) { 1442 mvxpe_sc_unlock(sc); 1443 return 0; 1444 } 1445 MVXPE_WRITE(sc, MVXPE_PRXTXTIC, ~ic); 1446 datum = datum ^ ic; 1447 1448 DPRINTIFNET(ifp, 2, "PRXTXTIC: %#x\n", ic); 1449 1450 /* ack maintance interrupt first */ 1451 if (ic & MVXPE_PRXTXTI_PTXERRORSUMMARY) { 1452 DPRINTIFNET(ifp, 1, "PRXTXTIC: +PTXERRORSUMMARY\n"); 1453 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtxth_txerr); 1454 } 1455 if ((ic & MVXPE_PRXTXTI_PMISCICSUMMARY)) { 1456 DPRINTIFNET(ifp, 2, "PTXTXTIC: +PMISCICSUMMARY\n"); 1457 mvxpe_misc_intr(sc); 1458 } 1459 if (ic & MVXPE_PRXTXTI_PRXTXICSUMMARY) { 1460 DPRINTIFNET(ifp, 2, "PTXTXTIC: +PRXTXICSUMMARY\n"); 1461 mvxpe_rxtx_intr(sc); 1462 } 1463 if (!(ifp->if_flags & IFF_RUNNING)) { 1464 mvxpe_sc_unlock(sc); 1465 return 1; 1466 } 1467 1468 /* RxTxTH interrupt */ 1469 queues = MVXPE_PRXTXTI_GET_RBICTAPQ(ic); 1470 if (queues) { 1471 DPRINTIFNET(ifp, 2, "PRXTXTIC: +RXEOF\n"); 1472 mvxpe_rx(sc, queues); 1473 } 1474 queues = MVXPE_PRXTXTI_GET_TBTCQ(ic); 1475 if (queues) { 1476 DPRINTIFNET(ifp, 2, "PRXTXTIC: +TBTCQ\n"); 1477 mvxpe_tx_complete(sc, queues); 1478 } 1479 queues = MVXPE_PRXTXTI_GET_RDTAQ(ic); 1480 if (queues) { 1481 DPRINTIFNET(ifp, 2, "PRXTXTIC: +RDTAQ\n"); 1482 mvxpe_rx_refill(sc, queues); 1483 } 1484 mvxpe_sc_unlock(sc); 1485 1486 if_schedule_deferred_start(ifp); 1487 1488 rnd_add_uint32(&sc->sc_rnd_source, datum); 1489 1490 return 1; 1491 } 1492 1493 STATIC int 1494 mvxpe_misc_intr(void *arg) 1495 { 1496 struct mvxpe_softc *sc = arg; 1497 #ifdef MVXPE_DEBUG 1498 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1499 #endif 1500 uint32_t ic; 1501 uint32_t datum = 0; 1502 int claimed = 0; 1503 1504 DPRINTSC(sc, 2, "got MISC_INTR\n"); 1505 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_i_misc); 1506 1507 KASSERT_SC_MTX(sc); 1508 1509 for (;;) { 1510 ic = MVXPE_READ(sc, MVXPE_PMIC); 1511 ic &= MVXPE_READ(sc, MVXPE_PMIM); 1512 if (ic == 0) 1513 break; 1514 MVXPE_WRITE(sc, MVXPE_PMIC, ~ic); 1515 datum = datum ^ ic; 1516 claimed = 1; 1517 1518 DPRINTIFNET(ifp, 2, "PMIC=%#x\n", ic); 1519 if (ic & MVXPE_PMI_PHYSTATUSCHNG) { 1520 DPRINTIFNET(ifp, 2, "+PHYSTATUSCHNG\n"); 1521 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_phystatuschng); 1522 } 1523 if (ic & MVXPE_PMI_LINKCHANGE) { 1524 DPRINTIFNET(ifp, 2, "+LINKCHANGE\n"); 1525 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_linkchange); 1526 mvxpe_linkupdate(sc); 1527 } 1528 if (ic & MVXPE_PMI_IAE) { 1529 DPRINTIFNET(ifp, 2, "+IAE\n"); 1530 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_iae); 1531 } 1532 if (ic & MVXPE_PMI_RXOVERRUN) { 1533 DPRINTIFNET(ifp, 2, "+RXOVERRUN\n"); 1534 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_rxoverrun); 1535 } 1536 if (ic & MVXPE_PMI_RXCRCERROR) { 1537 DPRINTIFNET(ifp, 2, "+RXCRCERROR\n"); 1538 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_rxcrc); 1539 } 1540 if (ic & MVXPE_PMI_RXLARGEPACKET) { 1541 DPRINTIFNET(ifp, 2, "+RXLARGEPACKET\n"); 1542 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_rxlargepacket); 1543 } 1544 if (ic & MVXPE_PMI_TXUNDRN) { 1545 DPRINTIFNET(ifp, 2, "+TXUNDRN\n"); 1546 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_txunderrun); 1547 } 1548 if (ic & MVXPE_PMI_PRBSERROR) { 1549 DPRINTIFNET(ifp, 2, "+PRBSERROR\n"); 1550 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_prbserr); 1551 } 1552 if (ic & MVXPE_PMI_TREQ_MASK) { 1553 DPRINTIFNET(ifp, 2, "+TREQ\n"); 1554 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_misc_txreq); 1555 } 1556 } 1557 if (datum) 1558 rnd_add_uint32(&sc->sc_rnd_source, datum); 1559 1560 return claimed; 1561 } 1562 1563 STATIC int 1564 mvxpe_rxtx_intr(void *arg) 1565 { 1566 struct mvxpe_softc *sc = arg; 1567 #ifdef MVXPE_DEBUG 1568 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 1569 #endif 1570 uint32_t datum = 0; 1571 uint32_t prxtxic; 1572 int claimed = 0; 1573 1574 DPRINTSC(sc, 2, "got RXTX_Intr\n"); 1575 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_i_rxtx); 1576 1577 KASSERT_SC_MTX(sc); 1578 1579 for (;;) { 1580 prxtxic = MVXPE_READ(sc, MVXPE_PRXTXIC); 1581 prxtxic &= MVXPE_READ(sc, MVXPE_PRXTXIM); 1582 if (prxtxic == 0) 1583 break; 1584 MVXPE_WRITE(sc, MVXPE_PRXTXIC, ~prxtxic); 1585 datum = datum ^ prxtxic; 1586 claimed = 1; 1587 1588 DPRINTSC(sc, 2, "PRXTXIC: %#x\n", prxtxic); 1589 1590 if (prxtxic & MVXPE_PRXTXI_RREQ_MASK) { 1591 DPRINTIFNET(ifp, 1, "Rx Resource Error.\n"); 1592 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_rreq); 1593 } 1594 if (prxtxic & MVXPE_PRXTXI_RPQ_MASK) { 1595 DPRINTIFNET(ifp, 1, "Rx Packet in Queue.\n"); 1596 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_rpq); 1597 } 1598 if (prxtxic & MVXPE_PRXTXI_TBRQ_MASK) { 1599 DPRINTIFNET(ifp, 1, "Tx Buffer Return.\n"); 1600 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_tbrq); 1601 } 1602 if (prxtxic & MVXPE_PRXTXI_PRXTXTHICSUMMARY) { 1603 DPRINTIFNET(ifp, 1, "PRXTXTHIC Summary\n"); 1604 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_rxtxth); 1605 } 1606 if (prxtxic & MVXPE_PRXTXI_PTXERRORSUMMARY) { 1607 DPRINTIFNET(ifp, 1, "PTXERROR Summary\n"); 1608 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_txerr); 1609 } 1610 if (prxtxic & MVXPE_PRXTXI_PMISCICSUMMARY) { 1611 DPRINTIFNET(ifp, 1, "PMISCIC Summary\n"); 1612 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxtx_misc); 1613 } 1614 } 1615 if (datum) 1616 rnd_add_uint32(&sc->sc_rnd_source, datum); 1617 1618 return claimed; 1619 } 1620 1621 STATIC void 1622 mvxpe_tick(void *arg) 1623 { 1624 struct mvxpe_softc *sc = arg; 1625 struct mii_data *mii = &sc->sc_mii; 1626 1627 mvxpe_sc_lock(sc); 1628 1629 mii_tick(mii); 1630 mii_pollstat(&sc->sc_mii); 1631 1632 /* read mib registers(clear by read) */ 1633 mvxpe_update_mib(sc); 1634 1635 /* read counter registers(clear by read) */ 1636 MVXPE_EVCNT_ADD(&sc->sc_ev.ev_reg_pdfc, 1637 MVXPE_READ(sc, MVXPE_PDFC)); 1638 MVXPE_EVCNT_ADD(&sc->sc_ev.ev_reg_pofc, 1639 MVXPE_READ(sc, MVXPE_POFC)); 1640 MVXPE_EVCNT_ADD(&sc->sc_ev.ev_reg_txbadfcs, 1641 MVXPE_READ(sc, MVXPE_TXBADFCS)); 1642 MVXPE_EVCNT_ADD(&sc->sc_ev.ev_reg_txdropped, 1643 MVXPE_READ(sc, MVXPE_TXDROPPED)); 1644 MVXPE_EVCNT_ADD(&sc->sc_ev.ev_reg_lpic, 1645 MVXPE_READ(sc, MVXPE_LPIC)); 1646 1647 mvxpe_sc_unlock(sc); 1648 1649 callout_schedule(&sc->sc_tick_ch, hz); 1650 } 1651 1652 1653 /* 1654 * struct ifnet and mii callbacks 1655 */ 1656 STATIC void 1657 mvxpe_start(struct ifnet *ifp) 1658 { 1659 struct mvxpe_softc *sc = ifp->if_softc; 1660 struct mbuf *m; 1661 int q; 1662 1663 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) { 1664 DPRINTIFNET(ifp, 1, "not running\n"); 1665 return; 1666 } 1667 1668 mvxpe_sc_lock(sc); 1669 if (!MVXPE_IS_LINKUP(sc)) { 1670 /* If Link is DOWN, can't start TX */ 1671 DPRINTIFNET(ifp, 1, "link fail\n"); 1672 for (;;) { 1673 /* 1674 * discard stale packets all. 1675 * these may confuse DAD, ARP or timer based protocols. 1676 */ 1677 IFQ_DEQUEUE(&ifp->if_snd, m); 1678 if (m == NULL) 1679 break; 1680 m_freem(m); 1681 } 1682 mvxpe_sc_unlock(sc); 1683 return; 1684 } 1685 for (;;) { 1686 /* 1687 * don't use IFQ_POLL(). 1688 * there is lock problem between IFQ_POLL and IFQ_DEQUEUE 1689 * on SMP enabled networking stack. 1690 */ 1691 IFQ_DEQUEUE(&ifp->if_snd, m); 1692 if (m == NULL) 1693 break; 1694 1695 q = mvxpe_tx_queue_select(sc, m); 1696 if (q < 0) 1697 break; 1698 /* mutex is held in mvxpe_tx_queue_select() */ 1699 1700 if (mvxpe_tx_queue(sc, m, q) != 0) { 1701 DPRINTIFNET(ifp, 1, "cannot add packet to tx ring\n"); 1702 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_txerr); 1703 mvxpe_tx_unlockq(sc, q); 1704 break; 1705 } 1706 mvxpe_tx_unlockq(sc, q); 1707 KASSERT(sc->sc_tx_ring[q].tx_used >= 0); 1708 KASSERT(sc->sc_tx_ring[q].tx_used <= 1709 sc->sc_tx_ring[q].tx_queue_len); 1710 DPRINTIFNET(ifp, 1, "a packet is added to tx ring\n"); 1711 sc->sc_tx_pending++; 1712 if_statinc(ifp, if_opackets); 1713 ifp->if_timer = 1; 1714 sc->sc_wdogsoft = 1; 1715 bpf_mtap(ifp, m, BPF_D_OUT); 1716 } 1717 mvxpe_sc_unlock(sc); 1718 1719 return; 1720 } 1721 1722 STATIC int 1723 mvxpe_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1724 { 1725 struct mvxpe_softc *sc = ifp->if_softc; 1726 int error = 0; 1727 1728 switch (cmd) { 1729 default: 1730 DPRINTIFNET(ifp, 2, "mvxpe_ioctl ETHER\n"); 1731 error = ether_ioctl(ifp, cmd, data); 1732 if (error == ENETRESET) { 1733 if (ifp->if_flags & IFF_RUNNING) { 1734 mvxpe_sc_lock(sc); 1735 mvxpe_filter_setup(sc); 1736 mvxpe_sc_unlock(sc); 1737 } 1738 error = 0; 1739 } 1740 break; 1741 } 1742 1743 return error; 1744 } 1745 1746 STATIC int 1747 mvxpe_init(struct ifnet *ifp) 1748 { 1749 struct mvxpe_softc *sc = ifp->if_softc; 1750 struct mii_data *mii = &sc->sc_mii; 1751 uint32_t reg; 1752 int q; 1753 1754 mvxpe_sc_lock(sc); 1755 1756 /* Start DMA Engine */ 1757 MVXPE_WRITE(sc, MVXPE_PRXINIT, 0x00000000); 1758 MVXPE_WRITE(sc, MVXPE_PTXINIT, 0x00000000); 1759 MVXPE_WRITE(sc, MVXPE_PACC, MVXPE_PACC_ACCELERATIONMODE_EDM); 1760 1761 /* Enable port */ 1762 reg = MVXPE_READ(sc, MVXPE_PMACC0); 1763 reg |= MVXPE_PMACC0_PORTEN; 1764 MVXPE_WRITE(sc, MVXPE_PMACC0, reg); 1765 1766 /* Link up */ 1767 mvxpe_linkup(sc); 1768 1769 /* Enable All Queue and interrupt of each Queue */ 1770 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 1771 mvxpe_rx_lockq(sc, q); 1772 mvxpe_rx_queue_enable(ifp, q); 1773 mvxpe_rx_queue_refill(sc, q); 1774 mvxpe_rx_unlockq(sc, q); 1775 1776 mvxpe_tx_lockq(sc, q); 1777 mvxpe_tx_queue_enable(ifp, q); 1778 mvxpe_tx_unlockq(sc, q); 1779 } 1780 1781 /* Enable interrupt */ 1782 mvxpe_enable_intr(sc); 1783 1784 /* Set Counter */ 1785 callout_schedule(&sc->sc_tick_ch, hz); 1786 1787 /* Media check */ 1788 mii_mediachg(mii); 1789 1790 ifp->if_flags |= IFF_RUNNING; 1791 ifp->if_flags &= ~IFF_OACTIVE; 1792 1793 mvxpe_sc_unlock(sc); 1794 return 0; 1795 } 1796 1797 /* ARGSUSED */ 1798 STATIC void 1799 mvxpe_stop(struct ifnet *ifp, int disable) 1800 { 1801 struct mvxpe_softc *sc = ifp->if_softc; 1802 uint32_t reg; 1803 int q, cnt; 1804 1805 DPRINTIFNET(ifp, 1, "stop device dma and interrupts.\n"); 1806 1807 mvxpe_sc_lock(sc); 1808 1809 callout_stop(&sc->sc_tick_ch); 1810 1811 /* Link down */ 1812 mvxpe_linkdown(sc); 1813 1814 /* Disable Rx interrupt */ 1815 reg = MVXPE_READ(sc, MVXPE_PIE); 1816 reg &= ~MVXPE_PIE_RXPKTINTRPTENB_MASK; 1817 MVXPE_WRITE(sc, MVXPE_PIE, reg); 1818 1819 reg = MVXPE_READ(sc, MVXPE_PRXTXTIM); 1820 reg &= ~MVXPE_PRXTXTI_RBICTAPQ_MASK; 1821 reg &= ~MVXPE_PRXTXTI_RDTAQ_MASK; 1822 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, reg); 1823 1824 /* Wait for all Rx activity to terminate. */ 1825 reg = MVXPE_READ(sc, MVXPE_RQC) & MVXPE_RQC_EN_MASK; 1826 reg = MVXPE_RQC_DIS(reg); 1827 MVXPE_WRITE(sc, MVXPE_RQC, reg); 1828 cnt = 0; 1829 do { 1830 if (cnt >= RX_DISABLE_TIMEOUT) { 1831 aprint_error_ifnet(ifp, 1832 "timeout for RX stopped. rqc 0x%x\n", reg); 1833 break; 1834 } 1835 cnt++; 1836 reg = MVXPE_READ(sc, MVXPE_RQC); 1837 } while (reg & MVXPE_RQC_EN_MASK); 1838 1839 /* Wait for all Tx activety to terminate. */ 1840 reg = MVXPE_READ(sc, MVXPE_PIE); 1841 reg &= ~MVXPE_PIE_TXPKTINTRPTENB_MASK; 1842 MVXPE_WRITE(sc, MVXPE_PIE, reg); 1843 1844 reg = MVXPE_READ(sc, MVXPE_PRXTXTIM); 1845 reg &= ~MVXPE_PRXTXTI_TBTCQ_MASK; 1846 MVXPE_WRITE(sc, MVXPE_PRXTXTIM, reg); 1847 1848 reg = MVXPE_READ(sc, MVXPE_TQC) & MVXPE_TQC_EN_MASK; 1849 reg = MVXPE_TQC_DIS(reg); 1850 MVXPE_WRITE(sc, MVXPE_TQC, reg); 1851 cnt = 0; 1852 do { 1853 if (cnt >= TX_DISABLE_TIMEOUT) { 1854 aprint_error_ifnet(ifp, 1855 "timeout for TX stopped. tqc 0x%x\n", reg); 1856 break; 1857 } 1858 cnt++; 1859 reg = MVXPE_READ(sc, MVXPE_TQC); 1860 } while (reg & MVXPE_TQC_EN_MASK); 1861 1862 /* Wait for all Tx FIFO is empty */ 1863 cnt = 0; 1864 do { 1865 if (cnt >= TX_FIFO_EMPTY_TIMEOUT) { 1866 aprint_error_ifnet(ifp, 1867 "timeout for TX FIFO drained. ps0 0x%x\n", reg); 1868 break; 1869 } 1870 cnt++; 1871 reg = MVXPE_READ(sc, MVXPE_PS0); 1872 } while (!(reg & MVXPE_PS0_TXFIFOEMP) && (reg & MVXPE_PS0_TXINPROG)); 1873 1874 /* Reset the MAC Port Enable bit */ 1875 reg = MVXPE_READ(sc, MVXPE_PMACC0); 1876 reg &= ~MVXPE_PMACC0_PORTEN; 1877 MVXPE_WRITE(sc, MVXPE_PMACC0, reg); 1878 1879 /* Disable each of queue */ 1880 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 1881 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 1882 1883 mvxpe_rx_lockq(sc, q); 1884 mvxpe_tx_lockq(sc, q); 1885 1886 /* Disable Rx packet buffer refill request */ 1887 reg = MVXPE_PRXDQTH_ODT(rx->rx_queue_th_received); 1888 reg |= MVXPE_PRXDQTH_NODT(0); 1889 MVXPE_WRITE(sc, MVXPE_PRXITTH(q), reg); 1890 1891 if (disable) { 1892 /* 1893 * Hold Reset state of DMA Engine 1894 * (must write 0x0 to restart it) 1895 */ 1896 MVXPE_WRITE(sc, MVXPE_PRXINIT, 0x00000001); 1897 MVXPE_WRITE(sc, MVXPE_PTXINIT, 0x00000001); 1898 mvxpe_ring_flush_queue(sc, q); 1899 } 1900 1901 mvxpe_tx_unlockq(sc, q); 1902 mvxpe_rx_unlockq(sc, q); 1903 } 1904 1905 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1906 1907 mvxpe_sc_unlock(sc); 1908 } 1909 1910 STATIC void 1911 mvxpe_watchdog(struct ifnet *ifp) 1912 { 1913 struct mvxpe_softc *sc = ifp->if_softc; 1914 int q; 1915 1916 mvxpe_sc_lock(sc); 1917 1918 /* 1919 * Reclaim first as there is a possibility of losing Tx completion 1920 * interrupts. 1921 */ 1922 mvxpe_tx_complete(sc, 0xff); 1923 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 1924 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 1925 1926 if (tx->tx_dma != tx->tx_cpu) { 1927 if (sc->sc_wdogsoft) { 1928 /* 1929 * There is race condition between CPU and DMA 1930 * engine. When DMA engine encounters queue end, 1931 * it clears MVXPE_TQC_ENQ bit. 1932 * XXX: how about enhanced mode? 1933 */ 1934 MVXPE_WRITE(sc, MVXPE_TQC, MVXPE_TQC_ENQ(q)); 1935 ifp->if_timer = 5; 1936 sc->sc_wdogsoft = 0; 1937 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_wdogsoft); 1938 } else { 1939 aprint_error_ifnet(ifp, "watchdog timeout\n"); 1940 if_statinc(ifp, if_oerrors); 1941 mvxpe_linkreset(sc); 1942 mvxpe_sc_unlock(sc); 1943 1944 /* trigger reinitialize sequence */ 1945 mvxpe_stop(ifp, 1); 1946 mvxpe_init(ifp); 1947 1948 mvxpe_sc_lock(sc); 1949 } 1950 } 1951 } 1952 mvxpe_sc_unlock(sc); 1953 } 1954 1955 STATIC int 1956 mvxpe_ifflags_cb(struct ethercom *ec) 1957 { 1958 struct ifnet *ifp = &ec->ec_if; 1959 struct mvxpe_softc *sc = ifp->if_softc; 1960 u_short change = ifp->if_flags ^ sc->sc_if_flags; 1961 1962 mvxpe_sc_lock(sc); 1963 1964 if (change != 0) 1965 sc->sc_if_flags = ifp->if_flags; 1966 1967 if ((change & ~(IFF_CANTCHANGE | IFF_DEBUG)) != 0) { 1968 mvxpe_sc_unlock(sc); 1969 return ENETRESET; 1970 } 1971 1972 if ((change & IFF_PROMISC) != 0) 1973 mvxpe_filter_setup(sc); 1974 1975 if ((change & IFF_UP) != 0) 1976 mvxpe_linkreset(sc); 1977 1978 mvxpe_sc_unlock(sc); 1979 return 0; 1980 } 1981 1982 STATIC int 1983 mvxpe_mediachange(struct ifnet *ifp) 1984 { 1985 return ether_mediachange(ifp); 1986 } 1987 1988 STATIC void 1989 mvxpe_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 1990 { 1991 ether_mediastatus(ifp, ifmr); 1992 } 1993 1994 /* 1995 * Link State Notify 1996 */ 1997 STATIC void mvxpe_linkupdate(struct mvxpe_softc *sc) 1998 { 1999 int linkup; /* bool */ 2000 2001 KASSERT_SC_MTX(sc); 2002 2003 /* tell miibus */ 2004 mii_pollstat(&sc->sc_mii); 2005 2006 /* syslog */ 2007 linkup = MVXPE_IS_LINKUP(sc); 2008 if (sc->sc_linkstate == linkup) 2009 return; 2010 2011 #ifdef DEBUG 2012 log(LOG_DEBUG, 2013 "%s: link %s\n", device_xname(sc->sc_dev), linkup ? "up" : "down"); 2014 #endif 2015 if (linkup) 2016 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_link_up); 2017 else 2018 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_link_down); 2019 2020 sc->sc_linkstate = linkup; 2021 } 2022 2023 STATIC void 2024 mvxpe_linkup(struct mvxpe_softc *sc) 2025 { 2026 uint32_t reg; 2027 2028 KASSERT_SC_MTX(sc); 2029 2030 /* set EEE parameters */ 2031 reg = MVXPE_READ(sc, MVXPE_LPIC1); 2032 if (sc->sc_cf.cf_lpi) 2033 reg |= MVXPE_LPIC1_LPIRE; 2034 else 2035 reg &= ~MVXPE_LPIC1_LPIRE; 2036 MVXPE_WRITE(sc, MVXPE_LPIC1, reg); 2037 2038 /* set auto-negotiation parameters */ 2039 reg = MVXPE_READ(sc, MVXPE_PANC); 2040 if (sc->sc_cf.cf_fc) { 2041 /* flow control negotiation */ 2042 reg |= MVXPE_PANC_PAUSEADV; 2043 reg |= MVXPE_PANC_ANFCEN; 2044 } 2045 else { 2046 reg &= ~MVXPE_PANC_PAUSEADV; 2047 reg &= ~MVXPE_PANC_ANFCEN; 2048 } 2049 reg &= ~MVXPE_PANC_FORCELINKFAIL; 2050 reg &= ~MVXPE_PANC_FORCELINKPASS; 2051 MVXPE_WRITE(sc, MVXPE_PANC, reg); 2052 2053 mii_mediachg(&sc->sc_mii); 2054 } 2055 2056 STATIC void 2057 mvxpe_linkdown(struct mvxpe_softc *sc) 2058 { 2059 struct mii_softc *mii; 2060 uint32_t reg; 2061 2062 KASSERT_SC_MTX(sc); 2063 return; 2064 2065 reg = MVXPE_READ(sc, MVXPE_PANC); 2066 reg |= MVXPE_PANC_FORCELINKFAIL; 2067 reg &= MVXPE_PANC_FORCELINKPASS; 2068 MVXPE_WRITE(sc, MVXPE_PANC, reg); 2069 2070 mii = LIST_FIRST(&sc->sc_mii.mii_phys); 2071 if (mii) 2072 mii_phy_down(mii); 2073 } 2074 2075 STATIC void 2076 mvxpe_linkreset(struct mvxpe_softc *sc) 2077 { 2078 struct mii_softc *mii; 2079 2080 KASSERT_SC_MTX(sc); 2081 2082 /* force reset PHY first */ 2083 mii = LIST_FIRST(&sc->sc_mii.mii_phys); 2084 if (mii) 2085 mii_phy_reset(mii); 2086 2087 /* reinit MAC and PHY */ 2088 mvxpe_linkdown(sc); 2089 if ((sc->sc_if_flags & IFF_UP) != 0) 2090 mvxpe_linkup(sc); 2091 } 2092 2093 /* 2094 * Tx Subroutines 2095 */ 2096 STATIC int 2097 mvxpe_tx_queue_select(struct mvxpe_softc *sc, struct mbuf *m) 2098 { 2099 int q = 0; 2100 2101 /* XXX: get attribute from ALTQ framework? */ 2102 mvxpe_tx_lockq(sc, q); 2103 return 0; 2104 } 2105 2106 STATIC int 2107 mvxpe_tx_queue(struct mvxpe_softc *sc, struct mbuf *m, int q) 2108 { 2109 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2110 bus_dma_segment_t *txsegs; 2111 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 2112 struct mvxpe_tx_desc *t = NULL; 2113 uint32_t ptxsu; 2114 int txnsegs; 2115 int start, used; 2116 int i; 2117 2118 KASSERT_TX_MTX(sc, q); 2119 KASSERT(tx->tx_used >= 0); 2120 KASSERT(tx->tx_used <= tx->tx_queue_len); 2121 2122 /* load mbuf using dmamap of 1st descriptor */ 2123 if (bus_dmamap_load_mbuf(sc->sc_dmat, 2124 MVXPE_TX_MAP(sc, q, tx->tx_cpu), m, BUS_DMA_NOWAIT) != 0) { 2125 m_freem(m); 2126 return ENOBUFS; 2127 } 2128 txsegs = MVXPE_TX_MAP(sc, q, tx->tx_cpu)->dm_segs; 2129 txnsegs = MVXPE_TX_MAP(sc, q, tx->tx_cpu)->dm_nsegs; 2130 if (txnsegs <= 0 || (txnsegs + tx->tx_used) > tx->tx_queue_len) { 2131 /* we have no enough descriptors or mbuf is broken */ 2132 bus_dmamap_unload(sc->sc_dmat, MVXPE_TX_MAP(sc, q, tx->tx_cpu)); 2133 m_freem(m); 2134 return ENOBUFS; 2135 } 2136 DPRINTSC(sc, 2, "send packet %p descriptor %d\n", m, tx->tx_cpu); 2137 KASSERT(MVXPE_TX_MBUF(sc, q, tx->tx_cpu) == NULL); 2138 2139 /* remember mbuf using 1st descriptor */ 2140 MVXPE_TX_MBUF(sc, q, tx->tx_cpu) = m; 2141 bus_dmamap_sync(sc->sc_dmat, 2142 MVXPE_TX_MAP(sc, q, tx->tx_cpu), 0, m->m_pkthdr.len, 2143 BUS_DMASYNC_PREWRITE); 2144 2145 /* load to tx descriptors */ 2146 start = tx->tx_cpu; 2147 used = 0; 2148 for (i = 0; i < txnsegs; i++) { 2149 if (__predict_false(txsegs[i].ds_len == 0)) 2150 continue; 2151 t = MVXPE_TX_DESC(sc, q, tx->tx_cpu); 2152 t->command = 0; 2153 t->l4ichk = 0; 2154 t->flags = 0; 2155 if (i == 0) { 2156 /* 1st descriptor */ 2157 t->command |= MVXPE_TX_CMD_W_PACKET_OFFSET(0); 2158 t->command |= MVXPE_TX_CMD_PADDING; 2159 t->command |= MVXPE_TX_CMD_F; 2160 mvxpe_tx_set_csumflag(ifp, t, m); 2161 } 2162 t->bufptr = txsegs[i].ds_addr; 2163 t->bytecnt = txsegs[i].ds_len; 2164 tx->tx_cpu = tx_counter_adv(tx->tx_cpu, 1); 2165 tx->tx_used++; 2166 used++; 2167 } 2168 /* t is last descriptor here */ 2169 KASSERT(t != NULL); 2170 t->command |= MVXPE_TX_CMD_L; 2171 2172 DPRINTSC(sc, 2, "queue %d, %d descriptors used\n", q, used); 2173 #ifdef MVXPE_DEBUG 2174 if (mvxpe_debug > 2) 2175 for (i = start; i <= tx->tx_cpu; i++) { 2176 t = MVXPE_TX_DESC(sc, q, i); 2177 mvxpe_dump_txdesc(t, i); 2178 } 2179 #endif 2180 mvxpe_ring_sync_tx(sc, q, start, used, 2181 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2182 2183 while (used > 255) { 2184 ptxsu = MVXPE_PTXSU_NOWD(255); 2185 MVXPE_WRITE(sc, MVXPE_PTXSU(q), ptxsu); 2186 used -= 255; 2187 } 2188 if (used > 0) { 2189 ptxsu = MVXPE_PTXSU_NOWD(used); 2190 MVXPE_WRITE(sc, MVXPE_PTXSU(q), ptxsu); 2191 } 2192 MVXPE_WRITE(sc, MVXPE_TQC, MVXPE_TQC_ENQ(q)); 2193 2194 DPRINTSC(sc, 2, 2195 "PTXDQA: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PTXDQA(q))); 2196 DPRINTSC(sc, 2, 2197 "PTXDQS: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PTXDQS(q))); 2198 DPRINTSC(sc, 2, 2199 "PTXS: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PTXS(q))); 2200 DPRINTSC(sc, 2, 2201 "PTXDI: queue %d, %d\n", q, MVXPE_READ(sc, MVXPE_PTXDI(q))); 2202 DPRINTSC(sc, 2, "TQC: %#x\n", MVXPE_READ(sc, MVXPE_TQC)); 2203 DPRINTIFNET(ifp, 2, 2204 "Tx: tx_cpu = %d, tx_dma = %d, tx_used = %d\n", 2205 tx->tx_cpu, tx->tx_dma, tx->tx_used); 2206 return 0; 2207 } 2208 2209 STATIC void 2210 mvxpe_tx_set_csumflag(struct ifnet *ifp, 2211 struct mvxpe_tx_desc *t, struct mbuf *m) 2212 { 2213 struct ether_header *eh; 2214 int csum_flags; 2215 uint32_t iphl = 0, ipoff = 0; 2216 2217 csum_flags = ifp->if_csum_flags_tx & m->m_pkthdr.csum_flags; 2218 2219 eh = mtod(m, struct ether_header *); 2220 switch (htons(eh->ether_type)) { 2221 case ETHERTYPE_IP: 2222 case ETHERTYPE_IPV6: 2223 ipoff = ETHER_HDR_LEN; 2224 break; 2225 case ETHERTYPE_VLAN: 2226 ipoff = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; 2227 break; 2228 } 2229 2230 if (csum_flags & (M_CSUM_IPv4 | M_CSUM_TCPv4 | M_CSUM_UDPv4)) { 2231 iphl = M_CSUM_DATA_IPv4_IPHL(m->m_pkthdr.csum_data); 2232 t->command |= MVXPE_TX_CMD_L3_IP4; 2233 } 2234 else if (csum_flags & (M_CSUM_TCPv6 | M_CSUM_UDPv6)) { 2235 iphl = M_CSUM_DATA_IPv6_IPHL(m->m_pkthdr.csum_data); 2236 t->command |= MVXPE_TX_CMD_L3_IP6; 2237 } 2238 else { 2239 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NONE; 2240 return; 2241 } 2242 2243 2244 /* L3 */ 2245 if (csum_flags & M_CSUM_IPv4) { 2246 t->command |= MVXPE_TX_CMD_IP4_CHECKSUM; 2247 } 2248 2249 /* L4 */ 2250 if ((csum_flags & 2251 (M_CSUM_TCPv4 | M_CSUM_UDPv4 | M_CSUM_TCPv6 | M_CSUM_UDPv6)) == 0) { 2252 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NONE; 2253 } 2254 else if (csum_flags & M_CSUM_TCPv4) { 2255 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NOFRAG; 2256 t->command |= MVXPE_TX_CMD_L4_TCP; 2257 } 2258 else if (csum_flags & M_CSUM_UDPv4) { 2259 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NOFRAG; 2260 t->command |= MVXPE_TX_CMD_L4_UDP; 2261 } 2262 else if (csum_flags & M_CSUM_TCPv6) { 2263 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NOFRAG; 2264 t->command |= MVXPE_TX_CMD_L4_TCP; 2265 } 2266 else if (csum_flags & M_CSUM_UDPv6) { 2267 t->command |= MVXPE_TX_CMD_L4_CHECKSUM_NOFRAG; 2268 t->command |= MVXPE_TX_CMD_L4_UDP; 2269 } 2270 2271 t->l4ichk = 0; 2272 t->command |= MVXPE_TX_CMD_IP_HEADER_LEN(iphl >> 2); 2273 t->command |= MVXPE_TX_CMD_L3_OFFSET(ipoff); 2274 } 2275 2276 STATIC void 2277 mvxpe_tx_complete(struct mvxpe_softc *sc, uint32_t queues) 2278 { 2279 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2280 int q; 2281 2282 DPRINTSC(sc, 2, "tx completed.\n"); 2283 2284 KASSERT_SC_MTX(sc); 2285 2286 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 2287 if (!MVXPE_IS_QUEUE_BUSY(queues, q)) 2288 continue; 2289 mvxpe_tx_lockq(sc, q); 2290 mvxpe_tx_queue_complete(sc, q); 2291 mvxpe_tx_unlockq(sc, q); 2292 } 2293 KASSERT(sc->sc_tx_pending >= 0); 2294 if (sc->sc_tx_pending == 0) 2295 ifp->if_timer = 0; 2296 } 2297 2298 STATIC void 2299 mvxpe_tx_queue_complete(struct mvxpe_softc *sc, int q) 2300 { 2301 struct mvxpe_tx_ring *tx = MVXPE_TX_RING(sc, q); 2302 struct mvxpe_tx_desc *t; 2303 struct mbuf *m; 2304 uint32_t ptxs, ptxsu, ndesc; 2305 int i; 2306 2307 KASSERT_TX_MTX(sc, q); 2308 2309 ptxs = MVXPE_READ(sc, MVXPE_PTXS(q)); 2310 ndesc = MVXPE_PTXS_GET_TBC(ptxs); 2311 if (ndesc == 0) 2312 return; 2313 2314 DPRINTSC(sc, 2, 2315 "tx complete queue %d, %d descriptors.\n", q, ndesc); 2316 2317 mvxpe_ring_sync_tx(sc, q, tx->tx_dma, ndesc, 2318 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2319 2320 for (i = 0; i < ndesc; i++) { 2321 int error = 0; 2322 2323 t = MVXPE_TX_DESC(sc, q, tx->tx_dma); 2324 if (t->flags & MVXPE_TX_F_ES) { 2325 DPRINTSC(sc, 1, 2326 "tx error queue %d desc %d\n", 2327 q, tx->tx_dma); 2328 switch (t->flags & MVXPE_TX_F_EC_MASK) { 2329 case MVXPE_TX_F_EC_LC: 2330 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_txd_lc); 2331 break; 2332 case MVXPE_TX_F_EC_UR: 2333 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_txd_ur); 2334 break; 2335 case MVXPE_TX_F_EC_RL: 2336 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_txd_rl); 2337 break; 2338 default: 2339 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_txd_oth); 2340 break; 2341 } 2342 error = 1; 2343 } 2344 m = MVXPE_TX_MBUF(sc, q, tx->tx_dma); 2345 if (m != NULL) { 2346 KASSERT((t->command & MVXPE_TX_CMD_F) != 0); 2347 MVXPE_TX_MBUF(sc, q, tx->tx_dma) = NULL; 2348 bus_dmamap_sync(sc->sc_dmat, 2349 MVXPE_TX_MAP(sc, q, tx->tx_dma), 0, m->m_pkthdr.len, 2350 BUS_DMASYNC_POSTWRITE); 2351 bus_dmamap_unload(sc->sc_dmat, 2352 MVXPE_TX_MAP(sc, q, tx->tx_dma)); 2353 m_freem(m); 2354 sc->sc_tx_pending--; 2355 } 2356 else 2357 KASSERT((t->flags & MVXPE_TX_CMD_F) == 0); 2358 tx->tx_dma = tx_counter_adv(tx->tx_dma, 1); 2359 tx->tx_used--; 2360 if (error) 2361 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_txqe[q]); 2362 else 2363 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_txq[q]); 2364 } 2365 KASSERT(tx->tx_used >= 0); 2366 KASSERT(tx->tx_used <= tx->tx_queue_len); 2367 while (ndesc > 255) { 2368 ptxsu = MVXPE_PTXSU_NORB(255); 2369 MVXPE_WRITE(sc, MVXPE_PTXSU(q), ptxsu); 2370 ndesc -= 255; 2371 } 2372 if (ndesc > 0) { 2373 ptxsu = MVXPE_PTXSU_NORB(ndesc); 2374 MVXPE_WRITE(sc, MVXPE_PTXSU(q), ptxsu); 2375 } 2376 DPRINTSC(sc, 2, 2377 "Tx complete q %d, tx_cpu = %d, tx_dma = %d, tx_used = %d\n", 2378 q, tx->tx_cpu, tx->tx_dma, tx->tx_used); 2379 } 2380 2381 /* 2382 * Rx Subroutines 2383 */ 2384 STATIC void 2385 mvxpe_rx(struct mvxpe_softc *sc, uint32_t queues) 2386 { 2387 int q, npkt; 2388 2389 KASSERT_SC_MTX(sc); 2390 2391 while ( (npkt = mvxpe_rx_queue_select(sc, queues, &q))) { 2392 /* mutex is held by rx_queue_select */ 2393 mvxpe_rx_queue(sc, q, npkt); 2394 mvxpe_rx_unlockq(sc, q); 2395 } 2396 } 2397 2398 STATIC void 2399 mvxpe_rx_queue(struct mvxpe_softc *sc, int q, int npkt) 2400 { 2401 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 2402 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 2403 struct mvxpe_rx_desc *r; 2404 struct mvxpbm_chunk *chunk; 2405 struct mbuf *m; 2406 uint32_t prxsu; 2407 int error = 0; 2408 int i; 2409 2410 KASSERT_RX_MTX(sc, q); 2411 2412 mvxpe_ring_sync_rx(sc, q, rx->rx_dma, npkt, 2413 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2414 2415 for (i = 0; i < npkt; i++) { 2416 /* get descriptor and packet */ 2417 chunk = MVXPE_RX_PKTBUF(sc, q, rx->rx_dma); 2418 MVXPE_RX_PKTBUF(sc, q, rx->rx_dma) = NULL; 2419 r = MVXPE_RX_DESC(sc, q, rx->rx_dma); 2420 mvxpbm_dmamap_sync(chunk, r->bytecnt, BUS_DMASYNC_POSTREAD); 2421 2422 /* check errors */ 2423 if (r->status & MVXPE_RX_ES) { 2424 switch (r->status & MVXPE_RX_EC_MASK) { 2425 case MVXPE_RX_EC_CE: 2426 DPRINTIFNET(ifp, 1, "CRC error\n"); 2427 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxd_ce); 2428 break; 2429 case MVXPE_RX_EC_OR: 2430 DPRINTIFNET(ifp, 1, "Rx FIFO overrun\n"); 2431 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxd_or); 2432 break; 2433 case MVXPE_RX_EC_MF: 2434 DPRINTIFNET(ifp, 1, "Rx too large frame\n"); 2435 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxd_mf); 2436 break; 2437 case MVXPE_RX_EC_RE: 2438 DPRINTIFNET(ifp, 1, "Rx resource error\n"); 2439 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxd_re); 2440 break; 2441 } 2442 error = 1; 2443 goto rx_done; 2444 } 2445 if (!(r->status & MVXPE_RX_F) || !(r->status & MVXPE_RX_L)) { 2446 DPRINTIFNET(ifp, 1, "not support scatter buf\n"); 2447 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_rxd_scat); 2448 error = 1; 2449 goto rx_done; 2450 } 2451 2452 if (chunk == NULL) { 2453 device_printf(sc->sc_dev, 2454 "got rx interrupt, but no chunk\n"); 2455 error = 1; 2456 goto rx_done; 2457 } 2458 2459 /* extract packet buffer */ 2460 if (mvxpbm_init_mbuf_hdr(chunk) != 0) { 2461 error = 1; 2462 goto rx_done; 2463 } 2464 m = chunk->m; 2465 m_set_rcvif(m, ifp); 2466 m->m_pkthdr.len = m->m_len = r->bytecnt - ETHER_CRC_LEN; 2467 m_adj(m, MVXPE_HWHEADER_SIZE); /* strip MH */ 2468 mvxpe_rx_set_csumflag(ifp, r, m); 2469 if_percpuq_enqueue(ifp->if_percpuq, m); 2470 chunk = NULL; /* the BM chunk goes to networking stack now */ 2471 rx_done: 2472 if (chunk) { 2473 /* rx error. just return the chunk to BM. */ 2474 mvxpbm_free_chunk(chunk); 2475 } 2476 if (error) 2477 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_rxqe[q]); 2478 else 2479 MVXPE_EVCNT_INCR(&sc->sc_ev.ev_drv_rxq[q]); 2480 rx->rx_dma = rx_counter_adv(rx->rx_dma, 1); 2481 } 2482 /* DMA status update */ 2483 DPRINTSC(sc, 2, "%d packets received from queue %d\n", npkt, q); 2484 while (npkt > 255) { 2485 prxsu = MVXPE_PRXSU_NOOFPROCESSEDDESCRIPTORS(255); 2486 MVXPE_WRITE(sc, MVXPE_PRXSU(q), prxsu); 2487 npkt -= 255; 2488 } 2489 if (npkt > 0) { 2490 prxsu = MVXPE_PRXSU_NOOFPROCESSEDDESCRIPTORS(npkt); 2491 MVXPE_WRITE(sc, MVXPE_PRXSU(q), prxsu); 2492 } 2493 2494 DPRINTSC(sc, 2, 2495 "PRXDQA: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PRXDQA(q))); 2496 DPRINTSC(sc, 2, 2497 "PRXDQS: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PRXDQS(q))); 2498 DPRINTSC(sc, 2, 2499 "PRXS: queue %d, %#x\n", q, MVXPE_READ(sc, MVXPE_PRXS(q))); 2500 DPRINTSC(sc, 2, 2501 "PRXDI: queue %d, %d\n", q, MVXPE_READ(sc, MVXPE_PRXDI(q))); 2502 DPRINTSC(sc, 2, "RQC: %#x\n", MVXPE_READ(sc, MVXPE_RQC)); 2503 DPRINTIFNET(ifp, 2, "Rx: rx_cpu = %d, rx_dma = %d\n", 2504 rx->rx_cpu, rx->rx_dma); 2505 } 2506 2507 STATIC int 2508 mvxpe_rx_queue_select(struct mvxpe_softc *sc, uint32_t queues, int *queue) 2509 { 2510 uint32_t prxs, npkt; 2511 int q; 2512 2513 KASSERT_SC_MTX(sc); 2514 KASSERT(queue != NULL); 2515 DPRINTSC(sc, 2, "selecting rx queue\n"); 2516 2517 for (q = MVXPE_QUEUE_SIZE - 1; q >= 0; q--) { 2518 if (!MVXPE_IS_QUEUE_BUSY(queues, q)) 2519 continue; 2520 2521 prxs = MVXPE_READ(sc, MVXPE_PRXS(q)); 2522 npkt = MVXPE_PRXS_GET_ODC(prxs); 2523 if (npkt == 0) 2524 continue; 2525 2526 DPRINTSC(sc, 2, 2527 "queue %d selected: prxs=%#x, %u packet received.\n", 2528 q, prxs, npkt); 2529 *queue = q; 2530 mvxpe_rx_lockq(sc, q); 2531 return npkt; 2532 } 2533 2534 return 0; 2535 } 2536 2537 STATIC void 2538 mvxpe_rx_refill(struct mvxpe_softc *sc, uint32_t queues) 2539 { 2540 int q; 2541 2542 KASSERT_SC_MTX(sc); 2543 2544 /* XXX: check rx bit array */ 2545 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 2546 if (!MVXPE_IS_QUEUE_BUSY(queues, q)) 2547 continue; 2548 2549 mvxpe_rx_lockq(sc, q); 2550 mvxpe_rx_queue_refill(sc, q); 2551 mvxpe_rx_unlockq(sc, q); 2552 } 2553 } 2554 2555 STATIC void 2556 mvxpe_rx_queue_refill(struct mvxpe_softc *sc, int q) 2557 { 2558 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 2559 uint32_t prxs, prxsu, ndesc; 2560 int idx, refill = 0; 2561 int npkt; 2562 2563 KASSERT_RX_MTX(sc, q); 2564 2565 prxs = MVXPE_READ(sc, MVXPE_PRXS(q)); 2566 ndesc = MVXPE_PRXS_GET_NODC(prxs) + MVXPE_PRXS_GET_ODC(prxs); 2567 refill = rx->rx_queue_len - ndesc; 2568 if (refill <= 0) 2569 return; 2570 DPRINTPRXS(2, q); 2571 DPRINTSC(sc, 2, "%d buffers to refill.\n", refill); 2572 2573 idx = rx->rx_cpu; 2574 for (npkt = 0; npkt < refill; npkt++) 2575 if (mvxpe_rx_queue_add(sc, q) != 0) 2576 break; 2577 DPRINTSC(sc, 2, "queue %d, %d buffer refilled.\n", q, npkt); 2578 if (npkt == 0) 2579 return; 2580 2581 mvxpe_ring_sync_rx(sc, q, idx, npkt, 2582 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2583 2584 while (npkt > 255) { 2585 prxsu = MVXPE_PRXSU_NOOFNEWDESCRIPTORS(255); 2586 MVXPE_WRITE(sc, MVXPE_PRXSU(q), prxsu); 2587 npkt -= 255; 2588 } 2589 if (npkt > 0) { 2590 prxsu = MVXPE_PRXSU_NOOFNEWDESCRIPTORS(npkt); 2591 MVXPE_WRITE(sc, MVXPE_PRXSU(q), prxsu); 2592 } 2593 DPRINTPRXS(2, q); 2594 return; 2595 } 2596 2597 STATIC int 2598 mvxpe_rx_queue_add(struct mvxpe_softc *sc, int q) 2599 { 2600 struct mvxpe_rx_ring *rx = MVXPE_RX_RING(sc, q); 2601 struct mvxpe_rx_desc *r; 2602 struct mvxpbm_chunk *chunk = NULL; 2603 2604 KASSERT_RX_MTX(sc, q); 2605 2606 /* Allocate the packet buffer */ 2607 chunk = mvxpbm_alloc(sc->sc_bm); 2608 if (chunk == NULL) { 2609 DPRINTSC(sc, 1, "BM chunk allocation failed.\n"); 2610 return ENOBUFS; 2611 } 2612 2613 /* Add the packet to descritor */ 2614 KASSERT(MVXPE_RX_PKTBUF(sc, q, rx->rx_cpu) == NULL); 2615 MVXPE_RX_PKTBUF(sc, q, rx->rx_cpu) = chunk; 2616 mvxpbm_dmamap_sync(chunk, BM_SYNC_ALL, BUS_DMASYNC_PREREAD); 2617 2618 r = MVXPE_RX_DESC(sc, q, rx->rx_cpu); 2619 r->bufptr = chunk->buf_pa; 2620 DPRINTSC(sc, 9, "chunk added to index %d\n", rx->rx_cpu); 2621 rx->rx_cpu = rx_counter_adv(rx->rx_cpu, 1); 2622 return 0; 2623 } 2624 2625 STATIC void 2626 mvxpe_rx_set_csumflag(struct ifnet *ifp, 2627 struct mvxpe_rx_desc *r, struct mbuf *m0) 2628 { 2629 uint32_t csum_flags = 0; 2630 2631 if ((r->status & (MVXPE_RX_IP_HEADER_OK | MVXPE_RX_L3_IP)) == 0) 2632 return; /* not a IP packet */ 2633 2634 /* L3 */ 2635 if (r->status & MVXPE_RX_L3_IP) { 2636 csum_flags |= M_CSUM_IPv4 & ifp->if_csum_flags_rx; 2637 if ((r->status & MVXPE_RX_IP_HEADER_OK) == 0 && 2638 (csum_flags & M_CSUM_IPv4) != 0) { 2639 csum_flags |= M_CSUM_IPv4_BAD; 2640 goto finish; 2641 } 2642 else if (r->status & MVXPE_RX_IPV4_FRAGMENT) { 2643 /* 2644 * r->l4chk has partial checksum of each framgment. 2645 * but there is no way to use it in NetBSD. 2646 */ 2647 return; 2648 } 2649 } 2650 2651 /* L4 */ 2652 switch (r->status & MVXPE_RX_L4_MASK) { 2653 case MVXPE_RX_L4_TCP: 2654 if (r->status & MVXPE_RX_L3_IP) 2655 csum_flags |= M_CSUM_TCPv4 & ifp->if_csum_flags_rx; 2656 else 2657 csum_flags |= M_CSUM_TCPv6 & ifp->if_csum_flags_rx; 2658 break; 2659 case MVXPE_RX_L4_UDP: 2660 if (r->status & MVXPE_RX_L3_IP) 2661 csum_flags |= M_CSUM_UDPv4 & ifp->if_csum_flags_rx; 2662 else 2663 csum_flags |= M_CSUM_UDPv6 & ifp->if_csum_flags_rx; 2664 break; 2665 case MVXPE_RX_L4_OTH: 2666 default: 2667 break; 2668 } 2669 if ((r->status & MVXPE_RX_L4_CHECKSUM_OK) == 0 && (csum_flags & 2670 (M_CSUM_TCPv4 | M_CSUM_TCPv6 | M_CSUM_UDPv4 | M_CSUM_UDPv6)) != 0) 2671 csum_flags |= M_CSUM_TCP_UDP_BAD; 2672 finish: 2673 m0->m_pkthdr.csum_flags = csum_flags; 2674 } 2675 2676 /* 2677 * MAC address filter 2678 */ 2679 STATIC uint8_t 2680 mvxpe_crc8(const uint8_t *data, size_t size) 2681 { 2682 int bit; 2683 uint8_t byte; 2684 uint8_t crc = 0; 2685 const uint8_t poly = 0x07; 2686 2687 while (size--) 2688 for (byte = *data++, bit = NBBY-1; bit >= 0; bit--) 2689 crc = (crc << 1) ^ ((((crc >> 7) ^ (byte >> bit)) & 1) ? poly : 0); 2690 2691 return crc; 2692 } 2693 2694 CTASSERT(MVXPE_NDFSMT == MVXPE_NDFOMT); 2695 2696 STATIC void 2697 mvxpe_filter_setup(struct mvxpe_softc *sc) 2698 { 2699 struct ethercom *ec = &sc->sc_ethercom; 2700 struct ifnet *ifp= &sc->sc_ethercom.ec_if; 2701 struct ether_multi *enm; 2702 struct ether_multistep step; 2703 uint32_t dfut[MVXPE_NDFUT], dfsmt[MVXPE_NDFSMT], dfomt[MVXPE_NDFOMT]; 2704 uint32_t pxc; 2705 int i; 2706 const uint8_t special[ETHER_ADDR_LEN] = {0x01,0x00,0x5e,0x00,0x00,0x00}; 2707 2708 KASSERT_SC_MTX(sc); 2709 2710 memset(dfut, 0, sizeof(dfut)); 2711 memset(dfsmt, 0, sizeof(dfsmt)); 2712 memset(dfomt, 0, sizeof(dfomt)); 2713 2714 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 2715 goto allmulti; 2716 } 2717 2718 ETHER_LOCK(ec); 2719 ETHER_FIRST_MULTI(step, ec, enm); 2720 while (enm != NULL) { 2721 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2722 /* ranges are complex and somewhat rare */ 2723 ETHER_UNLOCK(ec); 2724 goto allmulti; 2725 } 2726 /* chip handles some IPv4 multicast specially */ 2727 if (memcmp(enm->enm_addrlo, special, 5) == 0) { 2728 i = enm->enm_addrlo[5]; 2729 dfsmt[i>>2] |= 2730 MVXPE_DF(i&3, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS); 2731 } else { 2732 i = mvxpe_crc8(enm->enm_addrlo, ETHER_ADDR_LEN); 2733 dfomt[i>>2] |= 2734 MVXPE_DF(i&3, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS); 2735 } 2736 2737 ETHER_NEXT_MULTI(step, enm); 2738 } 2739 ETHER_UNLOCK(ec); 2740 goto set; 2741 2742 allmulti: 2743 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 2744 for (i = 0; i < MVXPE_NDFSMT; i++) { 2745 dfsmt[i] = dfomt[i] = 2746 MVXPE_DF(0, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2747 MVXPE_DF(1, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2748 MVXPE_DF(2, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2749 MVXPE_DF(3, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS); 2750 } 2751 } 2752 2753 set: 2754 pxc = MVXPE_READ(sc, MVXPE_PXC); 2755 pxc &= ~MVXPE_PXC_UPM; 2756 pxc |= MVXPE_PXC_RB | MVXPE_PXC_RBIP | MVXPE_PXC_RBARP; 2757 if (ifp->if_flags & IFF_BROADCAST) { 2758 pxc &= ~(MVXPE_PXC_RB | MVXPE_PXC_RBIP | MVXPE_PXC_RBARP); 2759 } 2760 if (ifp->if_flags & IFF_PROMISC) { 2761 pxc |= MVXPE_PXC_UPM; 2762 } 2763 MVXPE_WRITE(sc, MVXPE_PXC, pxc); 2764 2765 /* Set Destination Address Filter Unicast Table */ 2766 if (ifp->if_flags & IFF_PROMISC) { 2767 /* pass all unicast addresses */ 2768 for (i = 0; i < MVXPE_NDFUT; i++) { 2769 dfut[i] = 2770 MVXPE_DF(0, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2771 MVXPE_DF(1, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2772 MVXPE_DF(2, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS) | 2773 MVXPE_DF(3, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS); 2774 } 2775 } 2776 else { 2777 i = sc->sc_enaddr[5] & 0xf; /* last nibble */ 2778 dfut[i>>2] = MVXPE_DF(i&3, MVXPE_DF_QUEUE(0) | MVXPE_DF_PASS); 2779 } 2780 MVXPE_WRITE_REGION(sc, MVXPE_DFUT(0), dfut, MVXPE_NDFUT); 2781 2782 /* Set Destination Address Filter Multicast Tables */ 2783 MVXPE_WRITE_REGION(sc, MVXPE_DFSMT(0), dfsmt, MVXPE_NDFSMT); 2784 MVXPE_WRITE_REGION(sc, MVXPE_DFOMT(0), dfomt, MVXPE_NDFOMT); 2785 } 2786 2787 /* 2788 * sysctl(9) 2789 */ 2790 SYSCTL_SETUP(sysctl_mvxpe, "sysctl mvxpe subtree setup") 2791 { 2792 int rc; 2793 const struct sysctlnode *node; 2794 2795 if ((rc = sysctl_createv(clog, 0, NULL, &node, 2796 0, CTLTYPE_NODE, "mvxpe", 2797 SYSCTL_DESCR("mvxpe interface controls"), 2798 NULL, 0, NULL, 0, 2799 CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 2800 goto err; 2801 } 2802 2803 mvxpe_root_num = node->sysctl_num; 2804 return; 2805 2806 err: 2807 aprint_error("%s: syctl_createv failed (rc = %d)\n", __func__, rc); 2808 } 2809 2810 STATIC int 2811 sysctl_read_mib(SYSCTLFN_ARGS) 2812 { 2813 struct mvxpe_sysctl_mib *arg; 2814 struct mvxpe_softc *sc; 2815 struct sysctlnode node; 2816 uint64_t val; 2817 int err; 2818 2819 node = *rnode; 2820 arg = (struct mvxpe_sysctl_mib *)rnode->sysctl_data; 2821 if (arg == NULL) 2822 return EINVAL; 2823 2824 sc = arg->sc; 2825 if (sc == NULL) 2826 return EINVAL; 2827 if (arg->index < 0 || arg->index > __arraycount(mvxpe_mib_list)) 2828 return EINVAL; 2829 2830 mvxpe_sc_lock(sc); 2831 val = arg->counter; 2832 mvxpe_sc_unlock(sc); 2833 2834 node.sysctl_data = &val; 2835 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 2836 if (err) 2837 return err; 2838 if (newp) 2839 return EINVAL; 2840 2841 return 0; 2842 } 2843 2844 2845 STATIC int 2846 sysctl_clear_mib(SYSCTLFN_ARGS) 2847 { 2848 struct mvxpe_softc *sc; 2849 struct sysctlnode node; 2850 int val; 2851 int err; 2852 2853 node = *rnode; 2854 sc = (struct mvxpe_softc *)rnode->sysctl_data; 2855 if (sc == NULL) 2856 return EINVAL; 2857 2858 val = 0; 2859 node.sysctl_data = &val; 2860 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 2861 if (err || newp == NULL) 2862 return err; 2863 if (val < 0 || val > 1) 2864 return EINVAL; 2865 if (val == 1) { 2866 mvxpe_sc_lock(sc); 2867 mvxpe_clear_mib(sc); 2868 mvxpe_sc_unlock(sc); 2869 } 2870 2871 return 0; 2872 } 2873 2874 STATIC int 2875 sysctl_set_queue_length(SYSCTLFN_ARGS) 2876 { 2877 struct mvxpe_sysctl_queue *arg; 2878 struct mvxpe_rx_ring *rx = NULL; 2879 struct mvxpe_tx_ring *tx = NULL; 2880 struct mvxpe_softc *sc; 2881 struct sysctlnode node; 2882 uint32_t reg; 2883 int val; 2884 int err; 2885 2886 node = *rnode; 2887 2888 arg = (struct mvxpe_sysctl_queue *)rnode->sysctl_data; 2889 if (arg == NULL) 2890 return EINVAL; 2891 if (arg->queue < 0 || arg->queue > MVXPE_RX_RING_CNT) 2892 return EINVAL; 2893 if (arg->rxtx != MVXPE_SYSCTL_RX && arg->rxtx != MVXPE_SYSCTL_TX) 2894 return EINVAL; 2895 2896 sc = arg->sc; 2897 if (sc == NULL) 2898 return EINVAL; 2899 2900 /* read queue length */ 2901 mvxpe_sc_lock(sc); 2902 switch (arg->rxtx) { 2903 case MVXPE_SYSCTL_RX: 2904 mvxpe_rx_lockq(sc, arg->queue); 2905 rx = MVXPE_RX_RING(sc, arg->queue); 2906 val = rx->rx_queue_len; 2907 mvxpe_rx_unlockq(sc, arg->queue); 2908 break; 2909 case MVXPE_SYSCTL_TX: 2910 mvxpe_tx_lockq(sc, arg->queue); 2911 tx = MVXPE_TX_RING(sc, arg->queue); 2912 val = tx->tx_queue_len; 2913 mvxpe_tx_unlockq(sc, arg->queue); 2914 break; 2915 } 2916 2917 node.sysctl_data = &val; 2918 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 2919 if (err || newp == NULL) { 2920 mvxpe_sc_unlock(sc); 2921 return err; 2922 } 2923 2924 /* update queue length */ 2925 if (val < 8 || val > MVXPE_RX_RING_CNT) { 2926 mvxpe_sc_unlock(sc); 2927 return EINVAL; 2928 } 2929 switch (arg->rxtx) { 2930 case MVXPE_SYSCTL_RX: 2931 mvxpe_rx_lockq(sc, arg->queue); 2932 rx->rx_queue_len = val; 2933 rx->rx_queue_th_received = 2934 rx->rx_queue_len / MVXPE_RXTH_RATIO; 2935 rx->rx_queue_th_free = 2936 rx->rx_queue_len / MVXPE_RXTH_REFILL_RATIO; 2937 2938 reg = MVXPE_PRXDQTH_ODT(rx->rx_queue_th_received); 2939 reg |= MVXPE_PRXDQTH_NODT(rx->rx_queue_th_free); 2940 MVXPE_WRITE(sc, MVXPE_PRXDQTH(arg->queue), reg); 2941 2942 mvxpe_rx_unlockq(sc, arg->queue); 2943 break; 2944 case MVXPE_SYSCTL_TX: 2945 mvxpe_tx_lockq(sc, arg->queue); 2946 tx->tx_queue_len = val; 2947 tx->tx_queue_th_free = 2948 tx->tx_queue_len / MVXPE_TXTH_RATIO; 2949 2950 reg = MVXPE_PTXDQS_TBT(tx->tx_queue_th_free); 2951 reg |= MVXPE_PTXDQS_DQS(MVXPE_TX_RING_CNT); 2952 MVXPE_WRITE(sc, MVXPE_PTXDQS(arg->queue), reg); 2953 2954 mvxpe_tx_unlockq(sc, arg->queue); 2955 break; 2956 } 2957 mvxpe_sc_unlock(sc); 2958 2959 return 0; 2960 } 2961 2962 STATIC int 2963 sysctl_set_queue_rxthtime(SYSCTLFN_ARGS) 2964 { 2965 struct mvxpe_sysctl_queue *arg; 2966 struct mvxpe_rx_ring *rx = NULL; 2967 struct mvxpe_softc *sc; 2968 struct sysctlnode node; 2969 extern uint32_t mvTclk; 2970 uint32_t reg, time_mvtclk; 2971 int time_us; 2972 int err; 2973 2974 node = *rnode; 2975 2976 arg = (struct mvxpe_sysctl_queue *)rnode->sysctl_data; 2977 if (arg == NULL) 2978 return EINVAL; 2979 if (arg->queue < 0 || arg->queue > MVXPE_RX_RING_CNT) 2980 return EINVAL; 2981 if (arg->rxtx != MVXPE_SYSCTL_RX) 2982 return EINVAL; 2983 2984 sc = arg->sc; 2985 if (sc == NULL) 2986 return EINVAL; 2987 2988 /* read queue length */ 2989 mvxpe_sc_lock(sc); 2990 mvxpe_rx_lockq(sc, arg->queue); 2991 rx = MVXPE_RX_RING(sc, arg->queue); 2992 time_mvtclk = rx->rx_queue_th_time; 2993 time_us = ((uint64_t)time_mvtclk * 1000ULL * 1000ULL) / mvTclk; 2994 node.sysctl_data = &time_us; 2995 DPRINTSC(sc, 1, "RXITTH(%d) => %#x\n", 2996 arg->queue, MVXPE_READ(sc, MVXPE_PRXITTH(arg->queue))); 2997 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 2998 if (err || newp == NULL) { 2999 mvxpe_rx_unlockq(sc, arg->queue); 3000 mvxpe_sc_unlock(sc); 3001 return err; 3002 } 3003 3004 /* update queue length (0[sec] - 1[sec]) */ 3005 if (time_us < 0 || time_us > (1000 * 1000)) { 3006 mvxpe_rx_unlockq(sc, arg->queue); 3007 mvxpe_sc_unlock(sc); 3008 return EINVAL; 3009 } 3010 time_mvtclk = 3011 (uint64_t)mvTclk * (uint64_t)time_us / (1000ULL * 1000ULL); 3012 rx->rx_queue_th_time = time_mvtclk; 3013 reg = MVXPE_PRXITTH_RITT(rx->rx_queue_th_time); 3014 MVXPE_WRITE(sc, MVXPE_PRXITTH(arg->queue), reg); 3015 DPRINTSC(sc, 1, "RXITTH(%d) => %#x\n", arg->queue, reg); 3016 mvxpe_rx_unlockq(sc, arg->queue); 3017 mvxpe_sc_unlock(sc); 3018 3019 return 0; 3020 } 3021 3022 3023 STATIC void 3024 sysctl_mvxpe_init(struct mvxpe_softc *sc) 3025 { 3026 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 3027 const struct sysctlnode *node; 3028 int mvxpe_nodenum; 3029 int mvxpe_mibnum; 3030 int mvxpe_rxqueuenum; 3031 int mvxpe_txqueuenum; 3032 int q, i; 3033 3034 /* hw.mvxpe.mvxpe[unit] */ 3035 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3036 0, CTLTYPE_NODE, ifp->if_xname, 3037 SYSCTL_DESCR("mvxpe per-controller controls"), 3038 NULL, 0, NULL, 0, 3039 CTL_HW, mvxpe_root_num, CTL_CREATE, 3040 CTL_EOL) != 0) { 3041 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3042 return; 3043 } 3044 mvxpe_nodenum = node->sysctl_num; 3045 3046 /* hw.mvxpe.mvxpe[unit].mib */ 3047 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3048 0, CTLTYPE_NODE, "mib", 3049 SYSCTL_DESCR("mvxpe per-controller MIB counters"), 3050 NULL, 0, NULL, 0, 3051 CTL_HW, mvxpe_root_num, mvxpe_nodenum, CTL_CREATE, 3052 CTL_EOL) != 0) { 3053 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3054 return; 3055 } 3056 mvxpe_mibnum = node->sysctl_num; 3057 3058 /* hw.mvxpe.mvxpe[unit].rx */ 3059 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3060 0, CTLTYPE_NODE, "rx", 3061 SYSCTL_DESCR("Rx Queues"), 3062 NULL, 0, NULL, 0, 3063 CTL_HW, mvxpe_root_num, mvxpe_nodenum, CTL_CREATE, CTL_EOL) != 0) { 3064 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3065 return; 3066 } 3067 mvxpe_rxqueuenum = node->sysctl_num; 3068 3069 /* hw.mvxpe.mvxpe[unit].tx */ 3070 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3071 0, CTLTYPE_NODE, "tx", 3072 SYSCTL_DESCR("Tx Queues"), 3073 NULL, 0, NULL, 0, 3074 CTL_HW, mvxpe_root_num, mvxpe_nodenum, CTL_CREATE, CTL_EOL) != 0) { 3075 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3076 return; 3077 } 3078 mvxpe_txqueuenum = node->sysctl_num; 3079 3080 #ifdef MVXPE_DEBUG 3081 /* hw.mvxpe.debug */ 3082 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3083 CTLFLAG_READWRITE, CTLTYPE_INT, "debug", 3084 SYSCTL_DESCR("mvxpe device driver debug control"), 3085 NULL, 0, &mvxpe_debug, 0, 3086 CTL_HW, mvxpe_root_num, CTL_CREATE, CTL_EOL) != 0) { 3087 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3088 return; 3089 } 3090 #endif 3091 /* 3092 * MIB access 3093 */ 3094 /* hw.mvxpe.mvxpe[unit].mib.<mibs> */ 3095 for (i = 0; i < __arraycount(mvxpe_mib_list); i++) { 3096 const char *name = mvxpe_mib_list[i].sysctl_name; 3097 const char *desc = mvxpe_mib_list[i].desc; 3098 struct mvxpe_sysctl_mib *mib_arg = &sc->sc_sysctl_mib[i]; 3099 3100 mib_arg->sc = sc; 3101 mib_arg->index = i; 3102 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3103 CTLFLAG_READONLY, CTLTYPE_QUAD, name, desc, 3104 sysctl_read_mib, 0, (void *)mib_arg, 0, 3105 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_mibnum, 3106 CTL_CREATE, CTL_EOL) != 0) { 3107 aprint_normal_dev(sc->sc_dev, 3108 "couldn't create sysctl node\n"); 3109 break; 3110 } 3111 } 3112 3113 for (q = 0; q < MVXPE_QUEUE_SIZE; q++) { 3114 struct mvxpe_sysctl_queue *rxarg = &sc->sc_sysctl_rx_queue[q]; 3115 struct mvxpe_sysctl_queue *txarg = &sc->sc_sysctl_tx_queue[q]; 3116 #define MVXPE_SYSCTL_NAME(num) "queue" # num 3117 static const char *sysctl_queue_names[] = { 3118 MVXPE_SYSCTL_NAME(0), MVXPE_SYSCTL_NAME(1), 3119 MVXPE_SYSCTL_NAME(2), MVXPE_SYSCTL_NAME(3), 3120 MVXPE_SYSCTL_NAME(4), MVXPE_SYSCTL_NAME(5), 3121 MVXPE_SYSCTL_NAME(6), MVXPE_SYSCTL_NAME(7), 3122 }; 3123 #undef MVXPE_SYSCTL_NAME 3124 #ifdef SYSCTL_INCLUDE_DESCR 3125 #define MVXPE_SYSCTL_DESCR(num) "configuration parameters for queue " # num 3126 static const char *sysctl_queue_descrs[] = { 3127 MVXPE_SYSCTL_DESCR(0), MVXPE_SYSCTL_DESCR(1), 3128 MVXPE_SYSCTL_DESCR(2), MVXPE_SYSCTL_DESCR(3), 3129 MVXPE_SYSCTL_DESCR(4), MVXPE_SYSCTL_DESCR(5), 3130 MVXPE_SYSCTL_DESCR(6), MVXPE_SYSCTL_DESCR(7), 3131 }; 3132 #undef MVXPE_SYSCTL_DESCR 3133 #endif /* SYSCTL_INCLUDE_DESCR */ 3134 int mvxpe_curnum; 3135 3136 rxarg->sc = txarg->sc = sc; 3137 rxarg->queue = txarg->queue = q; 3138 rxarg->rxtx = MVXPE_SYSCTL_RX; 3139 txarg->rxtx = MVXPE_SYSCTL_TX; 3140 3141 /* hw.mvxpe.mvxpe[unit].rx.[queue] */ 3142 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3143 0, CTLTYPE_NODE, 3144 sysctl_queue_names[q], SYSCTL_DESCR(sysctl_queue_descrs[q]), 3145 NULL, 0, NULL, 0, 3146 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_rxqueuenum, 3147 CTL_CREATE, CTL_EOL) != 0) { 3148 aprint_normal_dev(sc->sc_dev, 3149 "couldn't create sysctl node\n"); 3150 break; 3151 } 3152 mvxpe_curnum = node->sysctl_num; 3153 3154 /* hw.mvxpe.mvxpe[unit].rx.[queue].length */ 3155 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3156 CTLFLAG_READWRITE, CTLTYPE_INT, "length", 3157 SYSCTL_DESCR("maximum length of the queue"), 3158 sysctl_set_queue_length, 0, (void *)rxarg, 0, 3159 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_rxqueuenum, 3160 mvxpe_curnum, CTL_CREATE, CTL_EOL) != 0) { 3161 aprint_normal_dev(sc->sc_dev, 3162 "couldn't create sysctl node\n"); 3163 break; 3164 } 3165 3166 /* hw.mvxpe.mvxpe[unit].rx.[queue].threshold_timer_us */ 3167 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3168 CTLFLAG_READWRITE, CTLTYPE_INT, "threshold_timer_us", 3169 SYSCTL_DESCR("interrupt coalescing threshold timer [us]"), 3170 sysctl_set_queue_rxthtime, 0, (void *)rxarg, 0, 3171 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_rxqueuenum, 3172 mvxpe_curnum, CTL_CREATE, CTL_EOL) != 0) { 3173 aprint_normal_dev(sc->sc_dev, 3174 "couldn't create sysctl node\n"); 3175 break; 3176 } 3177 3178 /* hw.mvxpe.mvxpe[unit].tx.[queue] */ 3179 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3180 0, CTLTYPE_NODE, 3181 sysctl_queue_names[q], SYSCTL_DESCR(sysctl_queue_descs[q]), 3182 NULL, 0, NULL, 0, 3183 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_txqueuenum, 3184 CTL_CREATE, CTL_EOL) != 0) { 3185 aprint_normal_dev(sc->sc_dev, 3186 "couldn't create sysctl node\n"); 3187 break; 3188 } 3189 mvxpe_curnum = node->sysctl_num; 3190 3191 /* hw.mvxpe.mvxpe[unit].tx.length[queue] */ 3192 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3193 CTLFLAG_READWRITE, CTLTYPE_INT, "length", 3194 SYSCTL_DESCR("maximum length of the queue"), 3195 sysctl_set_queue_length, 0, (void *)txarg, 0, 3196 CTL_HW, mvxpe_root_num, mvxpe_nodenum, mvxpe_txqueuenum, 3197 mvxpe_curnum, CTL_CREATE, CTL_EOL) != 0) { 3198 aprint_normal_dev(sc->sc_dev, 3199 "couldn't create sysctl node\n"); 3200 break; 3201 } 3202 } 3203 3204 /* hw.mvxpe.mvxpe[unit].clear_mib */ 3205 if (sysctl_createv(&sc->sc_mvxpe_clog, 0, NULL, &node, 3206 CTLFLAG_READWRITE, CTLTYPE_INT, "clear_mib", 3207 SYSCTL_DESCR("mvxpe device driver debug control"), 3208 sysctl_clear_mib, 0, (void *)sc, 0, 3209 CTL_HW, mvxpe_root_num, mvxpe_nodenum, CTL_CREATE, 3210 CTL_EOL) != 0) { 3211 aprint_normal_dev(sc->sc_dev, "couldn't create sysctl node\n"); 3212 return; 3213 } 3214 3215 } 3216 3217 /* 3218 * MIB 3219 */ 3220 STATIC void 3221 mvxpe_clear_mib(struct mvxpe_softc *sc) 3222 { 3223 int i; 3224 3225 KASSERT_SC_MTX(sc); 3226 3227 for (i = 0; i < __arraycount(mvxpe_mib_list); i++) { 3228 if (mvxpe_mib_list[i].reg64) 3229 MVXPE_READ_MIB(sc, (mvxpe_mib_list[i].regnum + 4)); 3230 MVXPE_READ_MIB(sc, mvxpe_mib_list[i].regnum); 3231 sc->sc_sysctl_mib[i].counter = 0; 3232 } 3233 } 3234 3235 STATIC void 3236 mvxpe_update_mib(struct mvxpe_softc *sc) 3237 { 3238 struct ifnet *ifp = &sc->sc_ethercom.ec_if; 3239 int i; 3240 3241 KASSERT_SC_MTX(sc); 3242 3243 for (i = 0; i < __arraycount(mvxpe_mib_list); i++) { 3244 uint32_t val_hi; 3245 uint32_t val_lo; 3246 uint64_t val; 3247 3248 if (mvxpe_mib_list[i].reg64) { 3249 /* XXX: implement bus_space_read_8() */ 3250 val_lo = MVXPE_READ_MIB(sc, 3251 (mvxpe_mib_list[i].regnum + 4)); 3252 val_hi = MVXPE_READ_MIB(sc, mvxpe_mib_list[i].regnum); 3253 } 3254 else { 3255 val_lo = MVXPE_READ_MIB(sc, mvxpe_mib_list[i].regnum); 3256 val_hi = 0; 3257 } 3258 3259 if ((val_lo | val_hi) == 0) 3260 continue; 3261 3262 val = ((uint64_t)val_hi << 32) | (uint64_t)val_lo; 3263 sc->sc_sysctl_mib[i].counter += val; 3264 3265 switch (mvxpe_mib_list[i].ext) { 3266 case MVXPE_MIBEXT_IF_OERRORS: 3267 if_statadd(ifp, if_oerrors, val); 3268 break; 3269 case MVXPE_MIBEXT_IF_IERRORS: 3270 if_statadd(ifp, if_ierrors, val); 3271 break; 3272 case MVXPE_MIBEXT_IF_COLLISIONS: 3273 if_statadd(ifp, if_collisions, val); 3274 break; 3275 default: 3276 break; 3277 } 3278 3279 } 3280 } 3281 3282 /* 3283 * for Debug 3284 */ 3285 STATIC void 3286 mvxpe_dump_txdesc(struct mvxpe_tx_desc *desc, int idx) 3287 { 3288 #define DESC_PRINT(X) \ 3289 if (X) \ 3290 printf("txdesc[%d]." #X "=%#x\n", idx, X); 3291 3292 DESC_PRINT(desc->command); 3293 DESC_PRINT(desc->l4ichk); 3294 DESC_PRINT(desc->bytecnt); 3295 DESC_PRINT(desc->bufptr); 3296 DESC_PRINT(desc->flags); 3297 #undef DESC_PRINT 3298 } 3299 3300 STATIC void 3301 mvxpe_dump_rxdesc(struct mvxpe_rx_desc *desc, int idx) 3302 { 3303 #define DESC_PRINT(X) \ 3304 if (X) \ 3305 printf("rxdesc[%d]." #X "=%#x\n", idx, X); 3306 3307 DESC_PRINT(desc->status); 3308 DESC_PRINT(desc->bytecnt); 3309 DESC_PRINT(desc->bufptr); 3310 DESC_PRINT(desc->l4chk); 3311 #undef DESC_PRINT 3312 } 3313
Indexes created Tue Sep 30 20:09:53 GMT 2025