if_age.c revision 1.28.2.2
1 1.28.2.2 snj /* $NetBSD: if_age.c,v 1.28.2.2 2009/05/03 23:45:47 snj Exp $ */ 2 1.28.2.2 snj /* $OpenBSD: if_age.c,v 1.1 2009/01/16 05:00:34 kevlo Exp $ */ 3 1.28.2.2 snj 4 1.28.2.2 snj /*- 5 1.28.2.2 snj * Copyright (c) 2008, Pyun YongHyeon <yongari (at) FreeBSD.org> 6 1.28.2.2 snj * All rights reserved. 7 1.28.2.2 snj * 8 1.28.2.2 snj * Redistribution and use in source and binary forms, with or without 9 1.28.2.2 snj * modification, are permitted provided that the following conditions 10 1.28.2.2 snj * are met: 11 1.28.2.2 snj * 1. Redistributions of source code must retain the above copyright 12 1.28.2.2 snj * notice unmodified, this list of conditions, and the following 13 1.28.2.2 snj * disclaimer. 14 1.28.2.2 snj * 2. Redistributions in binary form must reproduce the above copyright 15 1.28.2.2 snj * notice, this list of conditions and the following disclaimer in the 16 1.28.2.2 snj * documentation and/or other materials provided with the distribution. 17 1.28.2.2 snj * 18 1.28.2.2 snj * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 1.28.2.2 snj * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 1.28.2.2 snj * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 1.28.2.2 snj * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 1.28.2.2 snj * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 1.28.2.2 snj * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 1.28.2.2 snj * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 1.28.2.2 snj * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 1.28.2.2 snj * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 1.28.2.2 snj * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 1.28.2.2 snj * SUCH DAMAGE. 29 1.28.2.2 snj */ 30 1.28.2.2 snj 31 1.28.2.2 snj /* Driver for Attansic Technology Corp. L1 Gigabit Ethernet. */ 32 1.28.2.2 snj 33 1.28.2.2 snj #include <sys/cdefs.h> 34 1.28.2.2 snj __KERNEL_RCSID(0, "$NetBSD: if_age.c,v 1.28.2.2 2009/05/03 23:45:47 snj Exp $"); 35 1.28.2.2 snj 36 1.28.2.2 snj #include "bpfilter.h" 37 1.28.2.2 snj #include "vlan.h" 38 1.28.2.2 snj 39 1.28.2.2 snj #include <sys/param.h> 40 1.28.2.2 snj #include <sys/proc.h> 41 1.28.2.2 snj #include <sys/endian.h> 42 1.28.2.2 snj #include <sys/systm.h> 43 1.28.2.2 snj #include <sys/types.h> 44 1.28.2.2 snj #include <sys/sockio.h> 45 1.28.2.2 snj #include <sys/mbuf.h> 46 1.28.2.2 snj #include <sys/queue.h> 47 1.28.2.2 snj #include <sys/kernel.h> 48 1.28.2.2 snj #include <sys/device.h> 49 1.28.2.2 snj #include <sys/callout.h> 50 1.28.2.2 snj #include <sys/socket.h> 51 1.28.2.2 snj 52 1.28.2.2 snj #include <net/if.h> 53 1.28.2.2 snj #include <net/if_dl.h> 54 1.28.2.2 snj #include <net/if_media.h> 55 1.28.2.2 snj #include <net/if_ether.h> 56 1.28.2.2 snj 57 1.28.2.2 snj #ifdef INET 58 1.28.2.2 snj #include <netinet/in.h> 59 1.28.2.2 snj #include <netinet/in_systm.h> 60 1.28.2.2 snj #include <netinet/in_var.h> 61 1.28.2.2 snj #include <netinet/ip.h> 62 1.28.2.2 snj #endif 63 1.28.2.2 snj 64 1.28.2.2 snj #include <net/if_types.h> 65 1.28.2.2 snj #include <net/if_vlanvar.h> 66 1.28.2.2 snj 67 1.28.2.2 snj #if NBPFILTER > 0 68 1.28.2.2 snj #include <net/bpf.h> 69 1.28.2.2 snj #endif 70 1.28.2.2 snj 71 1.28.2.2 snj #include <sys/rnd.h> 72 1.28.2.2 snj 73 1.28.2.2 snj #include <dev/mii/mii.h> 74 1.28.2.2 snj #include <dev/mii/miivar.h> 75 1.28.2.2 snj 76 1.28.2.2 snj #include <dev/pci/pcireg.h> 77 1.28.2.2 snj #include <dev/pci/pcivar.h> 78 1.28.2.2 snj #include <dev/pci/pcidevs.h> 79 1.28.2.2 snj 80 1.28.2.2 snj #include <dev/pci/if_agereg.h> 81 1.28.2.2 snj 82 1.28.2.2 snj static int age_match(device_t, cfdata_t, void *); 83 1.28.2.2 snj static void age_attach(device_t, device_t, void *); 84 1.28.2.2 snj static int age_detach(device_t, int); 85 1.28.2.2 snj 86 1.28.2.2 snj static bool age_resume(device_t PMF_FN_PROTO); 87 1.28.2.2 snj 88 1.28.2.2 snj static int age_miibus_readreg(device_t, int, int); 89 1.28.2.2 snj static void age_miibus_writereg(device_t, int, int, int); 90 1.28.2.2 snj static void age_miibus_statchg(device_t); 91 1.28.2.2 snj 92 1.28.2.2 snj static int age_init(struct ifnet *); 93 1.28.2.2 snj static int age_ioctl(struct ifnet *, u_long, void *); 94 1.28.2.2 snj static void age_start(struct ifnet *); 95 1.28.2.2 snj static void age_watchdog(struct ifnet *); 96 1.28.2.2 snj static void age_mediastatus(struct ifnet *, struct ifmediareq *); 97 1.28.2.2 snj static int age_mediachange(struct ifnet *); 98 1.28.2.2 snj 99 1.28.2.2 snj static int age_intr(void *); 100 1.28.2.2 snj static int age_read_vpd_word(struct age_softc *, uint32_t, uint32_t, uint32_t *); 101 1.28.2.2 snj static int age_dma_alloc(struct age_softc *); 102 1.28.2.2 snj static void age_dma_free(struct age_softc *); 103 1.28.2.2 snj static void age_get_macaddr(struct age_softc *, uint8_t[]); 104 1.28.2.2 snj static void age_phy_reset(struct age_softc *); 105 1.28.2.2 snj 106 1.28.2.2 snj static int age_encap(struct age_softc *, struct mbuf **); 107 1.28.2.2 snj static void age_init_tx_ring(struct age_softc *); 108 1.28.2.2 snj static int age_init_rx_ring(struct age_softc *); 109 1.28.2.2 snj static void age_init_rr_ring(struct age_softc *); 110 1.28.2.2 snj static void age_init_cmb_block(struct age_softc *); 111 1.28.2.2 snj static void age_init_smb_block(struct age_softc *); 112 1.28.2.2 snj static int age_newbuf(struct age_softc *, struct age_rxdesc *, int); 113 1.28.2.2 snj static void age_mac_config(struct age_softc *); 114 1.28.2.2 snj static void age_txintr(struct age_softc *, int); 115 1.28.2.2 snj static void age_rxeof(struct age_softc *sc, struct rx_rdesc *); 116 1.28.2.2 snj static void age_rxintr(struct age_softc *, int); 117 1.28.2.2 snj static void age_tick(void *); 118 1.28.2.2 snj static void age_reset(struct age_softc *); 119 1.28.2.2 snj static void age_stop(struct ifnet *, int); 120 1.28.2.2 snj static void age_stats_update(struct age_softc *); 121 1.28.2.2 snj static void age_stop_txmac(struct age_softc *); 122 1.28.2.2 snj static void age_stop_rxmac(struct age_softc *); 123 1.28.2.2 snj static void age_rxvlan(struct age_softc *sc); 124 1.28.2.2 snj static void age_rxfilter(struct age_softc *); 125 1.28.2.2 snj 126 1.28.2.2 snj CFATTACH_DECL_NEW(age, sizeof(struct age_softc), 127 1.28.2.2 snj age_match, age_attach, age_detach, NULL); 128 1.28.2.2 snj 129 1.28.2.2 snj int agedebug = 0; 130 1.28.2.2 snj #define DPRINTF(x) do { if (agedebug) printf x; } while (0) 131 1.28.2.2 snj 132 1.28.2.2 snj #define ETHER_ALIGN 2 133 1.28.2.2 snj #define AGE_CSUM_FEATURES (M_CSUM_TCPv4 | M_CSUM_UDPv4) 134 1.28.2.2 snj 135 1.28.2.2 snj static int 136 1.28.2.2 snj age_match(device_t dev, cfdata_t match, void *aux) 137 1.28.2.2 snj { 138 1.28.2.2 snj struct pci_attach_args *pa = aux; 139 1.28.2.2 snj 140 1.28.2.2 snj return (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATTANSIC && 141 1.28.2.2 snj PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATTANSIC_ETHERNET_GIGA); 142 1.28.2.2 snj } 143 1.28.2.2 snj 144 1.28.2.2 snj static void 145 1.28.2.2 snj age_attach(device_t parent, device_t self, void *aux) 146 1.28.2.2 snj { 147 1.28.2.2 snj struct age_softc *sc = device_private(self); 148 1.28.2.2 snj struct pci_attach_args *pa = aux; 149 1.28.2.2 snj pci_intr_handle_t ih; 150 1.28.2.2 snj const char *intrstr; 151 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 152 1.28.2.2 snj pcireg_t memtype; 153 1.28.2.2 snj int error = 0; 154 1.28.2.2 snj 155 1.28.2.2 snj aprint_naive("\n"); 156 1.28.2.2 snj aprint_normal(": Attansic/Atheros L1 Gigabit Ethernet\n"); 157 1.28.2.2 snj 158 1.28.2.2 snj sc->sc_dev = self; 159 1.28.2.2 snj sc->sc_dmat = pa->pa_dmat; 160 1.28.2.2 snj sc->sc_pct = pa->pa_pc; 161 1.28.2.2 snj sc->sc_pcitag = pa->pa_tag; 162 1.28.2.2 snj 163 1.28.2.2 snj /* 164 1.28.2.2 snj * Allocate IO memory 165 1.28.2.2 snj */ 166 1.28.2.2 snj memtype = pci_mapreg_type(sc->sc_pct, sc->sc_pcitag, AGE_PCIR_BAR); 167 1.28.2.2 snj switch (memtype) { 168 1.28.2.2 snj case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 169 1.28.2.2 snj case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT_1M: 170 1.28.2.2 snj case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 171 1.28.2.2 snj break; 172 1.28.2.2 snj default: 173 1.28.2.2 snj aprint_error_dev(self, "invalid base address register\n"); 174 1.28.2.2 snj break; 175 1.28.2.2 snj } 176 1.28.2.2 snj 177 1.28.2.2 snj if (pci_mapreg_map(pa, AGE_PCIR_BAR, memtype, 0, &sc->sc_mem_bt, 178 1.28.2.2 snj &sc->sc_mem_bh, NULL, &sc->sc_mem_size) != 0) { 179 1.28.2.2 snj aprint_error_dev(self, "could not map mem space\n"); 180 1.28.2.2 snj return; 181 1.28.2.2 snj } 182 1.28.2.2 snj 183 1.28.2.2 snj if (pci_intr_map(pa, &ih) != 0) { 184 1.28.2.2 snj aprint_error_dev(self, "could not map interrupt\n"); 185 1.28.2.2 snj goto fail; 186 1.28.2.2 snj } 187 1.28.2.2 snj 188 1.28.2.2 snj /* 189 1.28.2.2 snj * Allocate IRQ 190 1.28.2.2 snj */ 191 1.28.2.2 snj intrstr = pci_intr_string(sc->sc_pct, ih); 192 1.28.2.2 snj sc->sc_irq_handle = pci_intr_establish(sc->sc_pct, ih, IPL_NET, 193 1.28.2.2 snj age_intr, sc); 194 1.28.2.2 snj if (sc->sc_irq_handle == NULL) { 195 1.28.2.2 snj aprint_error_dev(self, "could not establish interrupt"); 196 1.28.2.2 snj if (intrstr != NULL) 197 1.28.2.2 snj aprint_error(" at %s", intrstr); 198 1.28.2.2 snj aprint_error("\n"); 199 1.28.2.2 snj goto fail; 200 1.28.2.2 snj } 201 1.28.2.2 snj aprint_normal_dev(self, "%s\n", intrstr); 202 1.28.2.2 snj 203 1.28.2.2 snj /* Set PHY address. */ 204 1.28.2.2 snj sc->age_phyaddr = AGE_PHY_ADDR; 205 1.28.2.2 snj 206 1.28.2.2 snj /* Reset PHY. */ 207 1.28.2.2 snj age_phy_reset(sc); 208 1.28.2.2 snj 209 1.28.2.2 snj /* Reset the ethernet controller. */ 210 1.28.2.2 snj age_reset(sc); 211 1.28.2.2 snj 212 1.28.2.2 snj /* Get PCI and chip id/revision. */ 213 1.28.2.2 snj sc->age_rev = PCI_REVISION(pa->pa_class); 214 1.28.2.2 snj sc->age_chip_rev = CSR_READ_4(sc, AGE_MASTER_CFG) >> 215 1.28.2.2 snj MASTER_CHIP_REV_SHIFT; 216 1.28.2.2 snj 217 1.28.2.2 snj aprint_debug_dev(self, "PCI device revision : 0x%04x\n", sc->age_rev); 218 1.28.2.2 snj aprint_debug_dev(self, "Chip id/revision : 0x%04x\n", sc->age_chip_rev); 219 1.28.2.2 snj 220 1.28.2.2 snj if (agedebug) { 221 1.28.2.2 snj aprint_debug_dev(self, "%d Tx FIFO, %d Rx FIFO\n", 222 1.28.2.2 snj CSR_READ_4(sc, AGE_SRAM_TX_FIFO_LEN), 223 1.28.2.2 snj CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN)); 224 1.28.2.2 snj } 225 1.28.2.2 snj 226 1.28.2.2 snj /* Set max allowable DMA size. */ 227 1.28.2.2 snj sc->age_dma_rd_burst = DMA_CFG_RD_BURST_128; 228 1.28.2.2 snj sc->age_dma_wr_burst = DMA_CFG_WR_BURST_128; 229 1.28.2.2 snj 230 1.28.2.2 snj /* Allocate DMA stuffs */ 231 1.28.2.2 snj error = age_dma_alloc(sc); 232 1.28.2.2 snj if (error) 233 1.28.2.2 snj goto fail; 234 1.28.2.2 snj 235 1.28.2.2 snj callout_init(&sc->sc_tick_ch, 0); 236 1.28.2.2 snj callout_setfunc(&sc->sc_tick_ch, age_tick, sc); 237 1.28.2.2 snj 238 1.28.2.2 snj /* Load station address. */ 239 1.28.2.2 snj age_get_macaddr(sc, sc->sc_enaddr); 240 1.28.2.2 snj 241 1.28.2.2 snj aprint_normal_dev(self, "Ethernet address %s\n", 242 1.28.2.2 snj ether_sprintf(sc->sc_enaddr)); 243 1.28.2.2 snj 244 1.28.2.2 snj ifp->if_softc = sc; 245 1.28.2.2 snj ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 246 1.28.2.2 snj ifp->if_init = age_init; 247 1.28.2.2 snj ifp->if_ioctl = age_ioctl; 248 1.28.2.2 snj ifp->if_start = age_start; 249 1.28.2.2 snj ifp->if_stop = age_stop; 250 1.28.2.2 snj ifp->if_watchdog = age_watchdog; 251 1.28.2.2 snj ifp->if_baudrate = IF_Gbps(1); 252 1.28.2.2 snj IFQ_SET_MAXLEN(&ifp->if_snd, AGE_TX_RING_CNT - 1); 253 1.28.2.2 snj IFQ_SET_READY(&ifp->if_snd); 254 1.28.2.2 snj strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 255 1.28.2.2 snj 256 1.28.2.2 snj sc->sc_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 257 1.28.2.2 snj 258 1.28.2.2 snj #ifdef AGE_CHECKSUM 259 1.28.2.2 snj ifp->if_capabilities |= IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx | 260 1.28.2.2 snj IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx | 261 1.28.2.2 snj IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_TCPv4_Rx; 262 1.28.2.2 snj #endif 263 1.28.2.2 snj 264 1.28.2.2 snj #if NVLAN > 0 265 1.28.2.2 snj sc->sc_ec.ec_capabilities |= ETHERCAP_VLAN_HWTAGGING; 266 1.28.2.2 snj #endif 267 1.28.2.2 snj 268 1.28.2.2 snj /* Set up MII bus. */ 269 1.28.2.2 snj sc->sc_miibus.mii_ifp = ifp; 270 1.28.2.2 snj sc->sc_miibus.mii_readreg = age_miibus_readreg; 271 1.28.2.2 snj sc->sc_miibus.mii_writereg = age_miibus_writereg; 272 1.28.2.2 snj sc->sc_miibus.mii_statchg = age_miibus_statchg; 273 1.28.2.2 snj 274 1.28.2.2 snj sc->sc_ec.ec_mii = &sc->sc_miibus; 275 1.28.2.2 snj ifmedia_init(&sc->sc_miibus.mii_media, 0, age_mediachange, 276 1.28.2.2 snj age_mediastatus); 277 1.28.2.2 snj mii_attach(self, &sc->sc_miibus, 0xffffffff, MII_PHY_ANY, 278 1.28.2.2 snj MII_OFFSET_ANY, 0); 279 1.28.2.2 snj 280 1.28.2.2 snj if (LIST_FIRST(&sc->sc_miibus.mii_phys) == NULL) { 281 1.28.2.2 snj aprint_error_dev(self, "no PHY found!\n"); 282 1.28.2.2 snj ifmedia_add(&sc->sc_miibus.mii_media, IFM_ETHER | IFM_MANUAL, 283 1.28.2.2 snj 0, NULL); 284 1.28.2.2 snj ifmedia_set(&sc->sc_miibus.mii_media, IFM_ETHER | IFM_MANUAL); 285 1.28.2.2 snj } else 286 1.28.2.2 snj ifmedia_set(&sc->sc_miibus.mii_media, IFM_ETHER | IFM_AUTO); 287 1.28.2.2 snj 288 1.28.2.2 snj if_attach(ifp); 289 1.28.2.2 snj ether_ifattach(ifp, sc->sc_enaddr); 290 1.28.2.2 snj 291 1.28.2.2 snj if (!pmf_device_register(self, NULL, age_resume)) 292 1.28.2.2 snj aprint_error_dev(self, "couldn't establish power handler\n"); 293 1.28.2.2 snj else 294 1.28.2.2 snj pmf_class_network_register(self, ifp); 295 1.28.2.2 snj 296 1.28.2.2 snj return; 297 1.28.2.2 snj 298 1.28.2.2 snj fail: 299 1.28.2.2 snj age_dma_free(sc); 300 1.28.2.2 snj if (sc->sc_irq_handle != NULL) { 301 1.28.2.2 snj pci_intr_disestablish(sc->sc_pct, sc->sc_irq_handle); 302 1.28.2.2 snj sc->sc_irq_handle = NULL; 303 1.28.2.2 snj } 304 1.28.2.2 snj if (sc->sc_mem_size) { 305 1.28.2.2 snj bus_space_unmap(sc->sc_mem_bt, sc->sc_mem_bh, sc->sc_mem_size); 306 1.28.2.2 snj sc->sc_mem_size = 0; 307 1.28.2.2 snj } 308 1.28.2.2 snj } 309 1.28.2.2 snj 310 1.28.2.2 snj static int 311 1.28.2.2 snj age_detach(device_t self, int flags) 312 1.28.2.2 snj { 313 1.28.2.2 snj struct age_softc *sc = device_private(self); 314 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 315 1.28.2.2 snj int s; 316 1.28.2.2 snj 317 1.28.2.2 snj pmf_device_deregister(self); 318 1.28.2.2 snj s = splnet(); 319 1.28.2.2 snj age_stop(ifp, 0); 320 1.28.2.2 snj splx(s); 321 1.28.2.2 snj 322 1.28.2.2 snj mii_detach(&sc->sc_miibus, MII_PHY_ANY, MII_OFFSET_ANY); 323 1.28.2.2 snj 324 1.28.2.2 snj /* Delete all remaining media. */ 325 1.28.2.2 snj ifmedia_delete_instance(&sc->sc_miibus.mii_media, IFM_INST_ANY); 326 1.28.2.2 snj 327 1.28.2.2 snj ether_ifdetach(ifp); 328 1.28.2.2 snj if_detach(ifp); 329 1.28.2.2 snj age_dma_free(sc); 330 1.28.2.2 snj 331 1.28.2.2 snj if (sc->sc_irq_handle != NULL) { 332 1.28.2.2 snj pci_intr_disestablish(sc->sc_pct, sc->sc_irq_handle); 333 1.28.2.2 snj sc->sc_irq_handle = NULL; 334 1.28.2.2 snj } 335 1.28.2.2 snj if (sc->sc_mem_size) { 336 1.28.2.2 snj bus_space_unmap(sc->sc_mem_bt, sc->sc_mem_bh, sc->sc_mem_size); 337 1.28.2.2 snj sc->sc_mem_size = 0; 338 1.28.2.2 snj } 339 1.28.2.2 snj return 0; 340 1.28.2.2 snj } 341 1.28.2.2 snj 342 1.28.2.2 snj /* 343 1.28.2.2 snj * Read a PHY register on the MII of the L1. 344 1.28.2.2 snj */ 345 1.28.2.2 snj static int 346 1.28.2.2 snj age_miibus_readreg(device_t dev, int phy, int reg) 347 1.28.2.2 snj { 348 1.28.2.2 snj struct age_softc *sc = device_private(dev); 349 1.28.2.2 snj uint32_t v; 350 1.28.2.2 snj int i; 351 1.28.2.2 snj 352 1.28.2.2 snj if (phy != sc->age_phyaddr) 353 1.28.2.2 snj return 0; 354 1.28.2.2 snj 355 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ | 356 1.28.2.2 snj MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 357 1.28.2.2 snj for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 358 1.28.2.2 snj DELAY(1); 359 1.28.2.2 snj v = CSR_READ_4(sc, AGE_MDIO); 360 1.28.2.2 snj if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 361 1.28.2.2 snj break; 362 1.28.2.2 snj } 363 1.28.2.2 snj 364 1.28.2.2 snj if (i == 0) { 365 1.28.2.2 snj printf("%s: phy read timeout: phy %d, reg %d\n", 366 1.28.2.2 snj device_xname(sc->sc_dev), phy, reg); 367 1.28.2.2 snj return 0; 368 1.28.2.2 snj } 369 1.28.2.2 snj 370 1.28.2.2 snj return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT); 371 1.28.2.2 snj } 372 1.28.2.2 snj 373 1.28.2.2 snj /* 374 1.28.2.2 snj * Write a PHY register on the MII of the L1. 375 1.28.2.2 snj */ 376 1.28.2.2 snj static void 377 1.28.2.2 snj age_miibus_writereg(device_t dev, int phy, int reg, int val) 378 1.28.2.2 snj { 379 1.28.2.2 snj struct age_softc *sc = device_private(dev); 380 1.28.2.2 snj uint32_t v; 381 1.28.2.2 snj int i; 382 1.28.2.2 snj 383 1.28.2.2 snj if (phy != sc->age_phyaddr) 384 1.28.2.2 snj return; 385 1.28.2.2 snj 386 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE | 387 1.28.2.2 snj (val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT | 388 1.28.2.2 snj MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 389 1.28.2.2 snj 390 1.28.2.2 snj for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 391 1.28.2.2 snj DELAY(1); 392 1.28.2.2 snj v = CSR_READ_4(sc, AGE_MDIO); 393 1.28.2.2 snj if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 394 1.28.2.2 snj break; 395 1.28.2.2 snj } 396 1.28.2.2 snj 397 1.28.2.2 snj if (i == 0) { 398 1.28.2.2 snj printf("%s: phy write timeout: phy %d, reg %d\n", 399 1.28.2.2 snj device_xname(sc->sc_dev), phy, reg); 400 1.28.2.2 snj } 401 1.28.2.2 snj } 402 1.28.2.2 snj 403 1.28.2.2 snj /* 404 1.28.2.2 snj * Callback from MII layer when media changes. 405 1.28.2.2 snj */ 406 1.28.2.2 snj static void 407 1.28.2.2 snj age_miibus_statchg(device_t dev) 408 1.28.2.2 snj { 409 1.28.2.2 snj struct age_softc *sc = device_private(dev); 410 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 411 1.28.2.2 snj struct mii_data *mii; 412 1.28.2.2 snj 413 1.28.2.2 snj if ((ifp->if_flags & IFF_RUNNING) == 0) 414 1.28.2.2 snj return; 415 1.28.2.2 snj 416 1.28.2.2 snj mii = &sc->sc_miibus; 417 1.28.2.2 snj 418 1.28.2.2 snj sc->age_flags &= ~AGE_FLAG_LINK; 419 1.28.2.2 snj if ((mii->mii_media_status & IFM_AVALID) != 0) { 420 1.28.2.2 snj switch (IFM_SUBTYPE(mii->mii_media_active)) { 421 1.28.2.2 snj case IFM_10_T: 422 1.28.2.2 snj case IFM_100_TX: 423 1.28.2.2 snj case IFM_1000_T: 424 1.28.2.2 snj sc->age_flags |= AGE_FLAG_LINK; 425 1.28.2.2 snj break; 426 1.28.2.2 snj default: 427 1.28.2.2 snj break; 428 1.28.2.2 snj } 429 1.28.2.2 snj } 430 1.28.2.2 snj 431 1.28.2.2 snj /* Stop Rx/Tx MACs. */ 432 1.28.2.2 snj age_stop_rxmac(sc); 433 1.28.2.2 snj age_stop_txmac(sc); 434 1.28.2.2 snj 435 1.28.2.2 snj /* Program MACs with resolved speed/duplex/flow-control. */ 436 1.28.2.2 snj if ((sc->age_flags & AGE_FLAG_LINK) != 0) { 437 1.28.2.2 snj uint32_t reg; 438 1.28.2.2 snj 439 1.28.2.2 snj age_mac_config(sc); 440 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 441 1.28.2.2 snj /* Restart DMA engine and Tx/Rx MAC. */ 442 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_CFG, CSR_READ_4(sc, AGE_DMA_CFG) | 443 1.28.2.2 snj DMA_CFG_RD_ENB | DMA_CFG_WR_ENB); 444 1.28.2.2 snj reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB; 445 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 446 1.28.2.2 snj } 447 1.28.2.2 snj } 448 1.28.2.2 snj 449 1.28.2.2 snj /* 450 1.28.2.2 snj * Get the current interface media status. 451 1.28.2.2 snj */ 452 1.28.2.2 snj static void 453 1.28.2.2 snj age_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 454 1.28.2.2 snj { 455 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 456 1.28.2.2 snj struct mii_data *mii = &sc->sc_miibus; 457 1.28.2.2 snj 458 1.28.2.2 snj mii_pollstat(mii); 459 1.28.2.2 snj ifmr->ifm_status = mii->mii_media_status; 460 1.28.2.2 snj ifmr->ifm_active = mii->mii_media_active; 461 1.28.2.2 snj } 462 1.28.2.2 snj 463 1.28.2.2 snj /* 464 1.28.2.2 snj * Set hardware to newly-selected media. 465 1.28.2.2 snj */ 466 1.28.2.2 snj static int 467 1.28.2.2 snj age_mediachange(struct ifnet *ifp) 468 1.28.2.2 snj { 469 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 470 1.28.2.2 snj struct mii_data *mii = &sc->sc_miibus; 471 1.28.2.2 snj int error; 472 1.28.2.2 snj 473 1.28.2.2 snj if (mii->mii_instance != 0) { 474 1.28.2.2 snj struct mii_softc *miisc; 475 1.28.2.2 snj 476 1.28.2.2 snj LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 477 1.28.2.2 snj mii_phy_reset(miisc); 478 1.28.2.2 snj } 479 1.28.2.2 snj error = mii_mediachg(mii); 480 1.28.2.2 snj 481 1.28.2.2 snj return error; 482 1.28.2.2 snj } 483 1.28.2.2 snj 484 1.28.2.2 snj static int 485 1.28.2.2 snj age_intr(void *arg) 486 1.28.2.2 snj { 487 1.28.2.2 snj struct age_softc *sc = arg; 488 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 489 1.28.2.2 snj struct cmb *cmb; 490 1.28.2.2 snj uint32_t status; 491 1.28.2.2 snj 492 1.28.2.2 snj status = CSR_READ_4(sc, AGE_INTR_STATUS); 493 1.28.2.2 snj if (status == 0 || (status & AGE_INTRS) == 0) 494 1.28.2.2 snj return 0; 495 1.28.2.2 snj 496 1.28.2.2 snj cmb = sc->age_rdata.age_cmb_block; 497 1.28.2.2 snj if (cmb == NULL) { 498 1.28.2.2 snj /* Happens when bringing up the interface 499 1.28.2.2 snj * w/o having a carrier. Ack. the interrupt. 500 1.28.2.2 snj */ 501 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_STATUS, status); 502 1.28.2.2 snj return 0; 503 1.28.2.2 snj } 504 1.28.2.2 snj 505 1.28.2.2 snj /* Disable interrupts. */ 506 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_STATUS, status | INTR_DIS_INT); 507 1.28.2.2 snj 508 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 509 1.28.2.2 snj sc->age_cdata.age_cmb_block_map->dm_mapsize, BUS_DMASYNC_POSTREAD); 510 1.28.2.2 snj status = le32toh(cmb->intr_status); 511 1.28.2.2 snj if ((status & AGE_INTRS) == 0) 512 1.28.2.2 snj goto back; 513 1.28.2.2 snj 514 1.28.2.2 snj sc->age_tpd_cons = (le32toh(cmb->tpd_cons) & TPD_CONS_MASK) >> 515 1.28.2.2 snj TPD_CONS_SHIFT; 516 1.28.2.2 snj sc->age_rr_prod = (le32toh(cmb->rprod_cons) & RRD_PROD_MASK) >> 517 1.28.2.2 snj RRD_PROD_SHIFT; 518 1.28.2.2 snj 519 1.28.2.2 snj /* Let hardware know CMB was served. */ 520 1.28.2.2 snj cmb->intr_status = 0; 521 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 522 1.28.2.2 snj sc->age_cdata.age_cmb_block_map->dm_mapsize, 523 1.28.2.2 snj BUS_DMASYNC_PREWRITE); 524 1.28.2.2 snj 525 1.28.2.2 snj if (ifp->if_flags & IFF_RUNNING) { 526 1.28.2.2 snj if (status & INTR_CMB_RX) 527 1.28.2.2 snj age_rxintr(sc, sc->age_rr_prod); 528 1.28.2.2 snj 529 1.28.2.2 snj if (status & INTR_CMB_TX) 530 1.28.2.2 snj age_txintr(sc, sc->age_tpd_cons); 531 1.28.2.2 snj 532 1.28.2.2 snj if (status & (INTR_DMA_RD_TO_RST | INTR_DMA_WR_TO_RST)) { 533 1.28.2.2 snj if (status & INTR_DMA_RD_TO_RST) 534 1.28.2.2 snj printf("%s: DMA read error! -- resetting\n", 535 1.28.2.2 snj device_xname(sc->sc_dev)); 536 1.28.2.2 snj if (status & INTR_DMA_WR_TO_RST) 537 1.28.2.2 snj printf("%s: DMA write error! -- resetting\n", 538 1.28.2.2 snj device_xname(sc->sc_dev)); 539 1.28.2.2 snj age_init(ifp); 540 1.28.2.2 snj } 541 1.28.2.2 snj 542 1.28.2.2 snj if (!IFQ_IS_EMPTY(&ifp->if_snd)) 543 1.28.2.2 snj age_start(ifp); 544 1.28.2.2 snj 545 1.28.2.2 snj if (status & INTR_SMB) 546 1.28.2.2 snj age_stats_update(sc); 547 1.28.2.2 snj } 548 1.28.2.2 snj 549 1.28.2.2 snj /* Check whether CMB was updated while serving Tx/Rx/SMB handler. */ 550 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 551 1.28.2.2 snj sc->age_cdata.age_cmb_block_map->dm_mapsize, 552 1.28.2.2 snj BUS_DMASYNC_POSTREAD); 553 1.28.2.2 snj 554 1.28.2.2 snj back: 555 1.28.2.2 snj /* Re-enable interrupts. */ 556 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_STATUS, 0); 557 1.28.2.2 snj 558 1.28.2.2 snj return 1; 559 1.28.2.2 snj } 560 1.28.2.2 snj 561 1.28.2.2 snj static int 562 1.28.2.2 snj age_read_vpd_word(struct age_softc *sc, uint32_t vpdc, uint32_t offset, 563 1.28.2.2 snj uint32_t *word) 564 1.28.2.2 snj { 565 1.28.2.2 snj int i; 566 1.28.2.2 snj pcireg_t rv; 567 1.28.2.2 snj 568 1.28.2.2 snj pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_VPD_ADDRESS(vpdc), 569 1.28.2.2 snj offset << PCI_VPD_ADDRESS_SHIFT); 570 1.28.2.2 snj for (i = AGE_TIMEOUT; i > 0; i--) { 571 1.28.2.2 snj DELAY(10); 572 1.28.2.2 snj rv = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 573 1.28.2.2 snj PCI_VPD_ADDRESS(vpdc)); 574 1.28.2.2 snj if ((rv & PCI_VPD_OPFLAG) == PCI_VPD_OPFLAG) 575 1.28.2.2 snj break; 576 1.28.2.2 snj } 577 1.28.2.2 snj if (i == 0) { 578 1.28.2.2 snj printf("%s: VPD read timeout!\n", device_xname(sc->sc_dev)); 579 1.28.2.2 snj *word = 0; 580 1.28.2.2 snj return ETIMEDOUT; 581 1.28.2.2 snj } 582 1.28.2.2 snj 583 1.28.2.2 snj *word = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_VPD_DATAREG(vpdc)); 584 1.28.2.2 snj return 0; 585 1.28.2.2 snj } 586 1.28.2.2 snj 587 1.28.2.2 snj static void 588 1.28.2.2 snj age_get_macaddr(struct age_softc *sc, uint8_t eaddr[]) 589 1.28.2.2 snj { 590 1.28.2.2 snj uint32_t ea[2], off, reg, word; 591 1.28.2.2 snj int vpd_error, match, vpdc; 592 1.28.2.2 snj 593 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_SPI_CTRL); 594 1.28.2.2 snj if ((reg & SPI_VPD_ENB) != 0) { 595 1.28.2.2 snj /* Get VPD stored in TWSI EEPROM. */ 596 1.28.2.2 snj reg &= ~SPI_VPD_ENB; 597 1.28.2.2 snj CSR_WRITE_4(sc, AGE_SPI_CTRL, reg); 598 1.28.2.2 snj } 599 1.28.2.2 snj 600 1.28.2.2 snj vpd_error = 0; 601 1.28.2.2 snj ea[0] = ea[1] = 0; 602 1.28.2.2 snj if ((vpd_error = pci_get_capability(sc->sc_pct, sc->sc_pcitag, 603 1.28.2.2 snj PCI_CAP_VPD, &vpdc, NULL))) { 604 1.28.2.2 snj /* 605 1.28.2.2 snj * PCI VPD capability exists, but it seems that it's 606 1.28.2.2 snj * not in the standard form as stated in PCI VPD 607 1.28.2.2 snj * specification such that driver could not use 608 1.28.2.2 snj * pci_get_vpd_readonly(9) with keyword 'NA'. 609 1.28.2.2 snj * Search VPD data starting at address 0x0100. The data 610 1.28.2.2 snj * should be used as initializers to set AGE_PAR0, 611 1.28.2.2 snj * AGE_PAR1 register including other PCI configuration 612 1.28.2.2 snj * registers. 613 1.28.2.2 snj */ 614 1.28.2.2 snj word = 0; 615 1.28.2.2 snj match = 0; 616 1.28.2.2 snj reg = 0; 617 1.28.2.2 snj for (off = AGE_VPD_REG_CONF_START; off < AGE_VPD_REG_CONF_END; 618 1.28.2.2 snj off += sizeof(uint32_t)) { 619 1.28.2.2 snj vpd_error = age_read_vpd_word(sc, vpdc, off, &word); 620 1.28.2.2 snj if (vpd_error != 0) 621 1.28.2.2 snj break; 622 1.28.2.2 snj if (match != 0) { 623 1.28.2.2 snj switch (reg) { 624 1.28.2.2 snj case AGE_PAR0: 625 1.28.2.2 snj ea[0] = word; 626 1.28.2.2 snj break; 627 1.28.2.2 snj case AGE_PAR1: 628 1.28.2.2 snj ea[1] = word; 629 1.28.2.2 snj break; 630 1.28.2.2 snj default: 631 1.28.2.2 snj break; 632 1.28.2.2 snj } 633 1.28.2.2 snj match = 0; 634 1.28.2.2 snj } else if ((word & 0xFF) == AGE_VPD_REG_CONF_SIG) { 635 1.28.2.2 snj match = 1; 636 1.28.2.2 snj reg = word >> 16; 637 1.28.2.2 snj } else 638 1.28.2.2 snj break; 639 1.28.2.2 snj } 640 1.28.2.2 snj if (off >= AGE_VPD_REG_CONF_END) 641 1.28.2.2 snj vpd_error = ENOENT; 642 1.28.2.2 snj if (vpd_error == 0) { 643 1.28.2.2 snj /* 644 1.28.2.2 snj * Don't blindly trust ethernet address obtained 645 1.28.2.2 snj * from VPD. Check whether ethernet address is 646 1.28.2.2 snj * valid one. Otherwise fall-back to reading 647 1.28.2.2 snj * PAR register. 648 1.28.2.2 snj */ 649 1.28.2.2 snj ea[1] &= 0xFFFF; 650 1.28.2.2 snj if ((ea[0] == 0 && ea[1] == 0) || 651 1.28.2.2 snj (ea[0] == 0xFFFFFFFF && ea[1] == 0xFFFF)) { 652 1.28.2.2 snj if (agedebug) 653 1.28.2.2 snj printf("%s: invalid ethernet address " 654 1.28.2.2 snj "returned from VPD.\n", 655 1.28.2.2 snj device_xname(sc->sc_dev)); 656 1.28.2.2 snj vpd_error = EINVAL; 657 1.28.2.2 snj } 658 1.28.2.2 snj } 659 1.28.2.2 snj if (vpd_error != 0 && (agedebug)) 660 1.28.2.2 snj printf("%s: VPD access failure!\n", 661 1.28.2.2 snj device_xname(sc->sc_dev)); 662 1.28.2.2 snj } else { 663 1.28.2.2 snj if (agedebug) 664 1.28.2.2 snj printf("%s: PCI VPD capability not found!\n", 665 1.28.2.2 snj device_xname(sc->sc_dev)); 666 1.28.2.2 snj } 667 1.28.2.2 snj 668 1.28.2.2 snj /* 669 1.28.2.2 snj * It seems that L1 also provides a way to extract ethernet 670 1.28.2.2 snj * address via SPI flash interface. Because SPI flash memory 671 1.28.2.2 snj * device of different vendors vary in their instruction 672 1.28.2.2 snj * codes for read ID instruction, it's very hard to get 673 1.28.2.2 snj * instructions codes without detailed information for the 674 1.28.2.2 snj * flash memory device used on ethernet controller. To simplify 675 1.28.2.2 snj * code, just read AGE_PAR0/AGE_PAR1 register to get ethernet 676 1.28.2.2 snj * address which is supposed to be set by hardware during 677 1.28.2.2 snj * power on reset. 678 1.28.2.2 snj */ 679 1.28.2.2 snj if (vpd_error != 0) { 680 1.28.2.2 snj /* 681 1.28.2.2 snj * VPD is mapped to SPI flash memory or BIOS set it. 682 1.28.2.2 snj */ 683 1.28.2.2 snj ea[0] = CSR_READ_4(sc, AGE_PAR0); 684 1.28.2.2 snj ea[1] = CSR_READ_4(sc, AGE_PAR1); 685 1.28.2.2 snj } 686 1.28.2.2 snj 687 1.28.2.2 snj ea[1] &= 0xFFFF; 688 1.28.2.2 snj eaddr[0] = (ea[1] >> 8) & 0xFF; 689 1.28.2.2 snj eaddr[1] = (ea[1] >> 0) & 0xFF; 690 1.28.2.2 snj eaddr[2] = (ea[0] >> 24) & 0xFF; 691 1.28.2.2 snj eaddr[3] = (ea[0] >> 16) & 0xFF; 692 1.28.2.2 snj eaddr[4] = (ea[0] >> 8) & 0xFF; 693 1.28.2.2 snj eaddr[5] = (ea[0] >> 0) & 0xFF; 694 1.28.2.2 snj } 695 1.28.2.2 snj 696 1.28.2.2 snj static void 697 1.28.2.2 snj age_phy_reset(struct age_softc *sc) 698 1.28.2.2 snj { 699 1.28.2.2 snj /* Reset PHY. */ 700 1.28.2.2 snj CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_RST); 701 1.28.2.2 snj DELAY(1000); 702 1.28.2.2 snj CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_CLR); 703 1.28.2.2 snj DELAY(1000); 704 1.28.2.2 snj } 705 1.28.2.2 snj 706 1.28.2.2 snj static int 707 1.28.2.2 snj age_dma_alloc(struct age_softc *sc) 708 1.28.2.2 snj { 709 1.28.2.2 snj struct age_txdesc *txd; 710 1.28.2.2 snj struct age_rxdesc *rxd; 711 1.28.2.2 snj int nsegs, error, i; 712 1.28.2.2 snj 713 1.28.2.2 snj /* 714 1.28.2.2 snj * Create DMA stuffs for TX ring 715 1.28.2.2 snj */ 716 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_TX_RING_SZ, 1, 717 1.28.2.2 snj AGE_TX_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_tx_ring_map); 718 1.28.2.2 snj if (error) { 719 1.28.2.2 snj sc->age_cdata.age_tx_ring_map = NULL; 720 1.28.2.2 snj return ENOBUFS; 721 1.28.2.2 snj } 722 1.28.2.2 snj 723 1.28.2.2 snj /* Allocate DMA'able memory for TX ring */ 724 1.28.2.2 snj error = bus_dmamem_alloc(sc->sc_dmat, AGE_TX_RING_SZ, 725 1.28.2.2 snj ETHER_ALIGN, 0, &sc->age_rdata.age_tx_ring_seg, 1, 726 1.28.2.2 snj &nsegs, BUS_DMA_WAITOK); 727 1.28.2.2 snj if (error) { 728 1.28.2.2 snj printf("%s: could not allocate DMA'able memory for Tx ring, " 729 1.28.2.2 snj "error = %i\n", device_xname(sc->sc_dev), error); 730 1.28.2.2 snj return error; 731 1.28.2.2 snj } 732 1.28.2.2 snj 733 1.28.2.2 snj error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_tx_ring_seg, 734 1.28.2.2 snj nsegs, AGE_TX_RING_SZ, (void **)&sc->age_rdata.age_tx_ring, 735 1.28.2.2 snj BUS_DMA_NOWAIT); 736 1.28.2.2 snj if (error) 737 1.28.2.2 snj return ENOBUFS; 738 1.28.2.2 snj 739 1.28.2.2 snj memset(sc->age_rdata.age_tx_ring, 0, AGE_TX_RING_SZ); 740 1.28.2.2 snj 741 1.28.2.2 snj /* Load the DMA map for Tx ring. */ 742 1.28.2.2 snj error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 743 1.28.2.2 snj sc->age_rdata.age_tx_ring, AGE_TX_RING_SZ, NULL, BUS_DMA_WAITOK); 744 1.28.2.2 snj if (error) { 745 1.28.2.2 snj printf("%s: could not load DMA'able memory for Tx ring, " 746 1.28.2.2 snj "error = %i\n", device_xname(sc->sc_dev), error); 747 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 748 1.28.2.2 snj &sc->age_rdata.age_tx_ring_seg, 1); 749 1.28.2.2 snj return error; 750 1.28.2.2 snj } 751 1.28.2.2 snj 752 1.28.2.2 snj sc->age_rdata.age_tx_ring_paddr = 753 1.28.2.2 snj sc->age_cdata.age_tx_ring_map->dm_segs[0].ds_addr; 754 1.28.2.2 snj 755 1.28.2.2 snj /* 756 1.28.2.2 snj * Create DMA stuffs for RX ring 757 1.28.2.2 snj */ 758 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_RX_RING_SZ, 1, 759 1.28.2.2 snj AGE_RX_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_rx_ring_map); 760 1.28.2.2 snj if (error) { 761 1.28.2.2 snj sc->age_cdata.age_rx_ring_map = NULL; 762 1.28.2.2 snj return ENOBUFS; 763 1.28.2.2 snj } 764 1.28.2.2 snj 765 1.28.2.2 snj /* Allocate DMA'able memory for RX ring */ 766 1.28.2.2 snj error = bus_dmamem_alloc(sc->sc_dmat, AGE_RX_RING_SZ, 767 1.28.2.2 snj ETHER_ALIGN, 0, &sc->age_rdata.age_rx_ring_seg, 1, 768 1.28.2.2 snj &nsegs, BUS_DMA_WAITOK); 769 1.28.2.2 snj if (error) { 770 1.28.2.2 snj printf("%s: could not allocate DMA'able memory for Rx ring, " 771 1.28.2.2 snj "error = %i.\n", device_xname(sc->sc_dev), error); 772 1.28.2.2 snj return error; 773 1.28.2.2 snj } 774 1.28.2.2 snj 775 1.28.2.2 snj error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_rx_ring_seg, 776 1.28.2.2 snj nsegs, AGE_RX_RING_SZ, (void **)&sc->age_rdata.age_rx_ring, 777 1.28.2.2 snj BUS_DMA_NOWAIT); 778 1.28.2.2 snj if (error) 779 1.28.2.2 snj return ENOBUFS; 780 1.28.2.2 snj 781 1.28.2.2 snj memset(sc->age_rdata.age_rx_ring, 0, AGE_RX_RING_SZ); 782 1.28.2.2 snj 783 1.28.2.2 snj /* Load the DMA map for Rx ring. */ 784 1.28.2.2 snj error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_rx_ring_map, 785 1.28.2.2 snj sc->age_rdata.age_rx_ring, AGE_RX_RING_SZ, NULL, BUS_DMA_WAITOK); 786 1.28.2.2 snj if (error) { 787 1.28.2.2 snj printf("%s: could not load DMA'able memory for Rx ring, " 788 1.28.2.2 snj "error = %i.\n", device_xname(sc->sc_dev), error); 789 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 790 1.28.2.2 snj &sc->age_rdata.age_rx_ring_seg, 1); 791 1.28.2.2 snj return error; 792 1.28.2.2 snj } 793 1.28.2.2 snj 794 1.28.2.2 snj sc->age_rdata.age_rx_ring_paddr = 795 1.28.2.2 snj sc->age_cdata.age_rx_ring_map->dm_segs[0].ds_addr; 796 1.28.2.2 snj 797 1.28.2.2 snj /* 798 1.28.2.2 snj * Create DMA stuffs for RX return ring 799 1.28.2.2 snj */ 800 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_RR_RING_SZ, 1, 801 1.28.2.2 snj AGE_RR_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_rr_ring_map); 802 1.28.2.2 snj if (error) { 803 1.28.2.2 snj sc->age_cdata.age_rr_ring_map = NULL; 804 1.28.2.2 snj return ENOBUFS; 805 1.28.2.2 snj } 806 1.28.2.2 snj 807 1.28.2.2 snj /* Allocate DMA'able memory for RX return ring */ 808 1.28.2.2 snj error = bus_dmamem_alloc(sc->sc_dmat, AGE_RR_RING_SZ, 809 1.28.2.2 snj ETHER_ALIGN, 0, &sc->age_rdata.age_rr_ring_seg, 1, 810 1.28.2.2 snj &nsegs, BUS_DMA_WAITOK); 811 1.28.2.2 snj if (error) { 812 1.28.2.2 snj printf("%s: could not allocate DMA'able memory for Rx " 813 1.28.2.2 snj "return ring, error = %i.\n", 814 1.28.2.2 snj device_xname(sc->sc_dev), error); 815 1.28.2.2 snj return error; 816 1.28.2.2 snj } 817 1.28.2.2 snj 818 1.28.2.2 snj error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_rr_ring_seg, 819 1.28.2.2 snj nsegs, AGE_RR_RING_SZ, (void **)&sc->age_rdata.age_rr_ring, 820 1.28.2.2 snj BUS_DMA_NOWAIT); 821 1.28.2.2 snj if (error) 822 1.28.2.2 snj return ENOBUFS; 823 1.28.2.2 snj 824 1.28.2.2 snj memset(sc->age_rdata.age_rr_ring, 0, AGE_RR_RING_SZ); 825 1.28.2.2 snj 826 1.28.2.2 snj /* Load the DMA map for Rx return ring. */ 827 1.28.2.2 snj error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 828 1.28.2.2 snj sc->age_rdata.age_rr_ring, AGE_RR_RING_SZ, NULL, BUS_DMA_WAITOK); 829 1.28.2.2 snj if (error) { 830 1.28.2.2 snj printf("%s: could not load DMA'able memory for Rx return ring, " 831 1.28.2.2 snj "error = %i\n", device_xname(sc->sc_dev), error); 832 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 833 1.28.2.2 snj &sc->age_rdata.age_rr_ring_seg, 1); 834 1.28.2.2 snj return error; 835 1.28.2.2 snj } 836 1.28.2.2 snj 837 1.28.2.2 snj sc->age_rdata.age_rr_ring_paddr = 838 1.28.2.2 snj sc->age_cdata.age_rr_ring_map->dm_segs[0].ds_addr; 839 1.28.2.2 snj 840 1.28.2.2 snj /* 841 1.28.2.2 snj * Create DMA stuffs for CMB block 842 1.28.2.2 snj */ 843 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_CMB_BLOCK_SZ, 1, 844 1.28.2.2 snj AGE_CMB_BLOCK_SZ, 0, BUS_DMA_NOWAIT, 845 1.28.2.2 snj &sc->age_cdata.age_cmb_block_map); 846 1.28.2.2 snj if (error) { 847 1.28.2.2 snj sc->age_cdata.age_cmb_block_map = NULL; 848 1.28.2.2 snj return ENOBUFS; 849 1.28.2.2 snj } 850 1.28.2.2 snj 851 1.28.2.2 snj /* Allocate DMA'able memory for CMB block */ 852 1.28.2.2 snj error = bus_dmamem_alloc(sc->sc_dmat, AGE_CMB_BLOCK_SZ, 853 1.28.2.2 snj ETHER_ALIGN, 0, &sc->age_rdata.age_cmb_block_seg, 1, 854 1.28.2.2 snj &nsegs, BUS_DMA_WAITOK); 855 1.28.2.2 snj if (error) { 856 1.28.2.2 snj printf("%s: could not allocate DMA'able memory for " 857 1.28.2.2 snj "CMB block, error = %i\n", device_xname(sc->sc_dev), error); 858 1.28.2.2 snj return error; 859 1.28.2.2 snj } 860 1.28.2.2 snj 861 1.28.2.2 snj error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_cmb_block_seg, 862 1.28.2.2 snj nsegs, AGE_CMB_BLOCK_SZ, (void **)&sc->age_rdata.age_cmb_block, 863 1.28.2.2 snj BUS_DMA_NOWAIT); 864 1.28.2.2 snj if (error) 865 1.28.2.2 snj return ENOBUFS; 866 1.28.2.2 snj 867 1.28.2.2 snj memset(sc->age_rdata.age_cmb_block, 0, AGE_CMB_BLOCK_SZ); 868 1.28.2.2 snj 869 1.28.2.2 snj /* Load the DMA map for CMB block. */ 870 1.28.2.2 snj error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 871 1.28.2.2 snj sc->age_rdata.age_cmb_block, AGE_CMB_BLOCK_SZ, NULL, 872 1.28.2.2 snj BUS_DMA_WAITOK); 873 1.28.2.2 snj if (error) { 874 1.28.2.2 snj printf("%s: could not load DMA'able memory for CMB block, " 875 1.28.2.2 snj "error = %i\n", device_xname(sc->sc_dev), error); 876 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 877 1.28.2.2 snj &sc->age_rdata.age_cmb_block_seg, 1); 878 1.28.2.2 snj return error; 879 1.28.2.2 snj } 880 1.28.2.2 snj 881 1.28.2.2 snj sc->age_rdata.age_cmb_block_paddr = 882 1.28.2.2 snj sc->age_cdata.age_cmb_block_map->dm_segs[0].ds_addr; 883 1.28.2.2 snj 884 1.28.2.2 snj /* 885 1.28.2.2 snj * Create DMA stuffs for SMB block 886 1.28.2.2 snj */ 887 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_SMB_BLOCK_SZ, 1, 888 1.28.2.2 snj AGE_SMB_BLOCK_SZ, 0, BUS_DMA_NOWAIT, 889 1.28.2.2 snj &sc->age_cdata.age_smb_block_map); 890 1.28.2.2 snj if (error) { 891 1.28.2.2 snj sc->age_cdata.age_smb_block_map = NULL; 892 1.28.2.2 snj return ENOBUFS; 893 1.28.2.2 snj } 894 1.28.2.2 snj 895 1.28.2.2 snj /* Allocate DMA'able memory for SMB block */ 896 1.28.2.2 snj error = bus_dmamem_alloc(sc->sc_dmat, AGE_SMB_BLOCK_SZ, 897 1.28.2.2 snj ETHER_ALIGN, 0, &sc->age_rdata.age_smb_block_seg, 1, 898 1.28.2.2 snj &nsegs, BUS_DMA_WAITOK); 899 1.28.2.2 snj if (error) { 900 1.28.2.2 snj printf("%s: could not allocate DMA'able memory for " 901 1.28.2.2 snj "SMB block, error = %i\n", device_xname(sc->sc_dev), error); 902 1.28.2.2 snj return error; 903 1.28.2.2 snj } 904 1.28.2.2 snj 905 1.28.2.2 snj error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_smb_block_seg, 906 1.28.2.2 snj nsegs, AGE_SMB_BLOCK_SZ, (void **)&sc->age_rdata.age_smb_block, 907 1.28.2.2 snj BUS_DMA_NOWAIT); 908 1.28.2.2 snj if (error) 909 1.28.2.2 snj return ENOBUFS; 910 1.28.2.2 snj 911 1.28.2.2 snj memset(sc->age_rdata.age_smb_block, 0, AGE_SMB_BLOCK_SZ); 912 1.28.2.2 snj 913 1.28.2.2 snj /* Load the DMA map for SMB block */ 914 1.28.2.2 snj error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 915 1.28.2.2 snj sc->age_rdata.age_smb_block, AGE_SMB_BLOCK_SZ, NULL, 916 1.28.2.2 snj BUS_DMA_WAITOK); 917 1.28.2.2 snj if (error) { 918 1.28.2.2 snj printf("%s: could not load DMA'able memory for SMB block, " 919 1.28.2.2 snj "error = %i\n", device_xname(sc->sc_dev), error); 920 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 921 1.28.2.2 snj &sc->age_rdata.age_smb_block_seg, 1); 922 1.28.2.2 snj return error; 923 1.28.2.2 snj } 924 1.28.2.2 snj 925 1.28.2.2 snj sc->age_rdata.age_smb_block_paddr = 926 1.28.2.2 snj sc->age_cdata.age_smb_block_map->dm_segs[0].ds_addr; 927 1.28.2.2 snj 928 1.28.2.2 snj /* Create DMA maps for Tx buffers. */ 929 1.28.2.2 snj for (i = 0; i < AGE_TX_RING_CNT; i++) { 930 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[i]; 931 1.28.2.2 snj txd->tx_m = NULL; 932 1.28.2.2 snj txd->tx_dmamap = NULL; 933 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, AGE_TSO_MAXSIZE, 934 1.28.2.2 snj AGE_MAXTXSEGS, AGE_TSO_MAXSEGSIZE, 0, BUS_DMA_NOWAIT, 935 1.28.2.2 snj &txd->tx_dmamap); 936 1.28.2.2 snj if (error) { 937 1.28.2.2 snj txd->tx_dmamap = NULL; 938 1.28.2.2 snj printf("%s: could not create Tx dmamap, error = %i.\n", 939 1.28.2.2 snj device_xname(sc->sc_dev), error); 940 1.28.2.2 snj return error; 941 1.28.2.2 snj } 942 1.28.2.2 snj } 943 1.28.2.2 snj 944 1.28.2.2 snj /* Create DMA maps for Rx buffers. */ 945 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 0, 946 1.28.2.2 snj BUS_DMA_NOWAIT, &sc->age_cdata.age_rx_sparemap); 947 1.28.2.2 snj if (error) { 948 1.28.2.2 snj sc->age_cdata.age_rx_sparemap = NULL; 949 1.28.2.2 snj printf("%s: could not create spare Rx dmamap, error = %i.\n", 950 1.28.2.2 snj device_xname(sc->sc_dev), error); 951 1.28.2.2 snj return error; 952 1.28.2.2 snj } 953 1.28.2.2 snj for (i = 0; i < AGE_RX_RING_CNT; i++) { 954 1.28.2.2 snj rxd = &sc->age_cdata.age_rxdesc[i]; 955 1.28.2.2 snj rxd->rx_m = NULL; 956 1.28.2.2 snj rxd->rx_dmamap = NULL; 957 1.28.2.2 snj error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, 958 1.28.2.2 snj MCLBYTES, 0, BUS_DMA_NOWAIT, &rxd->rx_dmamap); 959 1.28.2.2 snj if (error) { 960 1.28.2.2 snj rxd->rx_dmamap = NULL; 961 1.28.2.2 snj printf("%s: could not create Rx dmamap, error = %i.\n", 962 1.28.2.2 snj device_xname(sc->sc_dev), error); 963 1.28.2.2 snj return error; 964 1.28.2.2 snj } 965 1.28.2.2 snj } 966 1.28.2.2 snj 967 1.28.2.2 snj return 0; 968 1.28.2.2 snj } 969 1.28.2.2 snj 970 1.28.2.2 snj static void 971 1.28.2.2 snj age_dma_free(struct age_softc *sc) 972 1.28.2.2 snj { 973 1.28.2.2 snj struct age_txdesc *txd; 974 1.28.2.2 snj struct age_rxdesc *rxd; 975 1.28.2.2 snj int i; 976 1.28.2.2 snj 977 1.28.2.2 snj /* Tx buffers */ 978 1.28.2.2 snj for (i = 0; i < AGE_TX_RING_CNT; i++) { 979 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[i]; 980 1.28.2.2 snj if (txd->tx_dmamap != NULL) { 981 1.28.2.2 snj bus_dmamap_destroy(sc->sc_dmat, txd->tx_dmamap); 982 1.28.2.2 snj txd->tx_dmamap = NULL; 983 1.28.2.2 snj } 984 1.28.2.2 snj } 985 1.28.2.2 snj /* Rx buffers */ 986 1.28.2.2 snj for (i = 0; i < AGE_RX_RING_CNT; i++) { 987 1.28.2.2 snj rxd = &sc->age_cdata.age_rxdesc[i]; 988 1.28.2.2 snj if (rxd->rx_dmamap != NULL) { 989 1.28.2.2 snj bus_dmamap_destroy(sc->sc_dmat, rxd->rx_dmamap); 990 1.28.2.2 snj rxd->rx_dmamap = NULL; 991 1.28.2.2 snj } 992 1.28.2.2 snj } 993 1.28.2.2 snj if (sc->age_cdata.age_rx_sparemap != NULL) { 994 1.28.2.2 snj bus_dmamap_destroy(sc->sc_dmat, sc->age_cdata.age_rx_sparemap); 995 1.28.2.2 snj sc->age_cdata.age_rx_sparemap = NULL; 996 1.28.2.2 snj } 997 1.28.2.2 snj 998 1.28.2.2 snj /* Tx ring. */ 999 1.28.2.2 snj if (sc->age_cdata.age_tx_ring_map != NULL) 1000 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_tx_ring_map); 1001 1.28.2.2 snj if (sc->age_cdata.age_tx_ring_map != NULL && 1002 1.28.2.2 snj sc->age_rdata.age_tx_ring != NULL) 1003 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 1004 1.28.2.2 snj &sc->age_rdata.age_tx_ring_seg, 1); 1005 1.28.2.2 snj sc->age_rdata.age_tx_ring = NULL; 1006 1.28.2.2 snj sc->age_cdata.age_tx_ring_map = NULL; 1007 1.28.2.2 snj 1008 1.28.2.2 snj /* Rx ring. */ 1009 1.28.2.2 snj if (sc->age_cdata.age_rx_ring_map != NULL) 1010 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_rx_ring_map); 1011 1.28.2.2 snj if (sc->age_cdata.age_rx_ring_map != NULL && 1012 1.28.2.2 snj sc->age_rdata.age_rx_ring != NULL) 1013 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 1014 1.28.2.2 snj &sc->age_rdata.age_rx_ring_seg, 1); 1015 1.28.2.2 snj sc->age_rdata.age_rx_ring = NULL; 1016 1.28.2.2 snj sc->age_cdata.age_rx_ring_map = NULL; 1017 1.28.2.2 snj 1018 1.28.2.2 snj /* Rx return ring. */ 1019 1.28.2.2 snj if (sc->age_cdata.age_rr_ring_map != NULL) 1020 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_rr_ring_map); 1021 1.28.2.2 snj if (sc->age_cdata.age_rr_ring_map != NULL && 1022 1.28.2.2 snj sc->age_rdata.age_rr_ring != NULL) 1023 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 1024 1.28.2.2 snj &sc->age_rdata.age_rr_ring_seg, 1); 1025 1.28.2.2 snj sc->age_rdata.age_rr_ring = NULL; 1026 1.28.2.2 snj sc->age_cdata.age_rr_ring_map = NULL; 1027 1.28.2.2 snj 1028 1.28.2.2 snj /* CMB block */ 1029 1.28.2.2 snj if (sc->age_cdata.age_cmb_block_map != NULL) 1030 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_cmb_block_map); 1031 1.28.2.2 snj if (sc->age_cdata.age_cmb_block_map != NULL && 1032 1.28.2.2 snj sc->age_rdata.age_cmb_block != NULL) 1033 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 1034 1.28.2.2 snj &sc->age_rdata.age_cmb_block_seg, 1); 1035 1.28.2.2 snj sc->age_rdata.age_cmb_block = NULL; 1036 1.28.2.2 snj sc->age_cdata.age_cmb_block_map = NULL; 1037 1.28.2.2 snj 1038 1.28.2.2 snj /* SMB block */ 1039 1.28.2.2 snj if (sc->age_cdata.age_smb_block_map != NULL) 1040 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_smb_block_map); 1041 1.28.2.2 snj if (sc->age_cdata.age_smb_block_map != NULL && 1042 1.28.2.2 snj sc->age_rdata.age_smb_block != NULL) 1043 1.28.2.2 snj bus_dmamem_free(sc->sc_dmat, 1044 1.28.2.2 snj &sc->age_rdata.age_smb_block_seg, 1); 1045 1.28.2.2 snj sc->age_rdata.age_smb_block = NULL; 1046 1.28.2.2 snj sc->age_cdata.age_smb_block_map = NULL; 1047 1.28.2.2 snj } 1048 1.28.2.2 snj 1049 1.28.2.2 snj static void 1050 1.28.2.2 snj age_start(struct ifnet *ifp) 1051 1.28.2.2 snj { 1052 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 1053 1.28.2.2 snj struct mbuf *m_head; 1054 1.28.2.2 snj int enq; 1055 1.28.2.2 snj 1056 1.28.2.2 snj if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 1057 1.28.2.2 snj return; 1058 1.28.2.2 snj 1059 1.28.2.2 snj enq = 0; 1060 1.28.2.2 snj for (;;) { 1061 1.28.2.2 snj IFQ_DEQUEUE(&ifp->if_snd, m_head); 1062 1.28.2.2 snj if (m_head == NULL) 1063 1.28.2.2 snj break; 1064 1.28.2.2 snj 1065 1.28.2.2 snj /* 1066 1.28.2.2 snj * Pack the data into the transmit ring. If we 1067 1.28.2.2 snj * don't have room, set the OACTIVE flag and wait 1068 1.28.2.2 snj * for the NIC to drain the ring. 1069 1.28.2.2 snj */ 1070 1.28.2.2 snj if (age_encap(sc, &m_head)) { 1071 1.28.2.2 snj if (m_head == NULL) 1072 1.28.2.2 snj break; 1073 1.28.2.2 snj ifp->if_flags |= IFF_OACTIVE; 1074 1.28.2.2 snj break; 1075 1.28.2.2 snj } 1076 1.28.2.2 snj enq = 1; 1077 1.28.2.2 snj 1078 1.28.2.2 snj #if NBPFILTER > 0 1079 1.28.2.2 snj /* 1080 1.28.2.2 snj * If there's a BPF listener, bounce a copy of this frame 1081 1.28.2.2 snj * to him. 1082 1.28.2.2 snj */ 1083 1.28.2.2 snj if (ifp->if_bpf != NULL) 1084 1.28.2.2 snj bpf_mtap(ifp->if_bpf, m_head); 1085 1.28.2.2 snj #endif 1086 1.28.2.2 snj } 1087 1.28.2.2 snj 1088 1.28.2.2 snj if (enq) { 1089 1.28.2.2 snj /* Update mbox. */ 1090 1.28.2.2 snj AGE_COMMIT_MBOX(sc); 1091 1.28.2.2 snj /* Set a timeout in case the chip goes out to lunch. */ 1092 1.28.2.2 snj ifp->if_timer = AGE_TX_TIMEOUT; 1093 1.28.2.2 snj } 1094 1.28.2.2 snj } 1095 1.28.2.2 snj 1096 1.28.2.2 snj static void 1097 1.28.2.2 snj age_watchdog(struct ifnet *ifp) 1098 1.28.2.2 snj { 1099 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 1100 1.28.2.2 snj 1101 1.28.2.2 snj if ((sc->age_flags & AGE_FLAG_LINK) == 0) { 1102 1.28.2.2 snj printf("%s: watchdog timeout (missed link)\n", 1103 1.28.2.2 snj device_xname(sc->sc_dev)); 1104 1.28.2.2 snj ifp->if_oerrors++; 1105 1.28.2.2 snj age_init(ifp); 1106 1.28.2.2 snj return; 1107 1.28.2.2 snj } 1108 1.28.2.2 snj 1109 1.28.2.2 snj if (sc->age_cdata.age_tx_cnt == 0) { 1110 1.28.2.2 snj printf("%s: watchdog timeout (missed Tx interrupts) " 1111 1.28.2.2 snj "-- recovering\n", device_xname(sc->sc_dev)); 1112 1.28.2.2 snj if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1113 1.28.2.2 snj age_start(ifp); 1114 1.28.2.2 snj return; 1115 1.28.2.2 snj } 1116 1.28.2.2 snj 1117 1.28.2.2 snj printf("%s: watchdog timeout\n", device_xname(sc->sc_dev)); 1118 1.28.2.2 snj ifp->if_oerrors++; 1119 1.28.2.2 snj age_init(ifp); 1120 1.28.2.2 snj 1121 1.28.2.2 snj if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1122 1.28.2.2 snj age_start(ifp); 1123 1.28.2.2 snj } 1124 1.28.2.2 snj 1125 1.28.2.2 snj static int 1126 1.28.2.2 snj age_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1127 1.28.2.2 snj { 1128 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 1129 1.28.2.2 snj int s, error; 1130 1.28.2.2 snj 1131 1.28.2.2 snj s = splnet(); 1132 1.28.2.2 snj 1133 1.28.2.2 snj error = ether_ioctl(ifp, cmd, data); 1134 1.28.2.2 snj if (error == ENETRESET) { 1135 1.28.2.2 snj if (ifp->if_flags & IFF_RUNNING) 1136 1.28.2.2 snj age_rxfilter(sc); 1137 1.28.2.2 snj error = 0; 1138 1.28.2.2 snj } 1139 1.28.2.2 snj 1140 1.28.2.2 snj splx(s); 1141 1.28.2.2 snj return error; 1142 1.28.2.2 snj } 1143 1.28.2.2 snj 1144 1.28.2.2 snj static void 1145 1.28.2.2 snj age_mac_config(struct age_softc *sc) 1146 1.28.2.2 snj { 1147 1.28.2.2 snj struct mii_data *mii; 1148 1.28.2.2 snj uint32_t reg; 1149 1.28.2.2 snj 1150 1.28.2.2 snj mii = &sc->sc_miibus; 1151 1.28.2.2 snj 1152 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 1153 1.28.2.2 snj reg &= ~MAC_CFG_FULL_DUPLEX; 1154 1.28.2.2 snj reg &= ~(MAC_CFG_TX_FC | MAC_CFG_RX_FC); 1155 1.28.2.2 snj reg &= ~MAC_CFG_SPEED_MASK; 1156 1.28.2.2 snj 1157 1.28.2.2 snj /* Reprogram MAC with resolved speed/duplex. */ 1158 1.28.2.2 snj switch (IFM_SUBTYPE(mii->mii_media_active)) { 1159 1.28.2.2 snj case IFM_10_T: 1160 1.28.2.2 snj case IFM_100_TX: 1161 1.28.2.2 snj reg |= MAC_CFG_SPEED_10_100; 1162 1.28.2.2 snj break; 1163 1.28.2.2 snj case IFM_1000_T: 1164 1.28.2.2 snj reg |= MAC_CFG_SPEED_1000; 1165 1.28.2.2 snj break; 1166 1.28.2.2 snj } 1167 1.28.2.2 snj if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 1168 1.28.2.2 snj reg |= MAC_CFG_FULL_DUPLEX; 1169 1.28.2.2 snj #ifdef notyet 1170 1.28.2.2 snj if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 1171 1.28.2.2 snj reg |= MAC_CFG_TX_FC; 1172 1.28.2.2 snj if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 1173 1.28.2.2 snj reg |= MAC_CFG_RX_FC; 1174 1.28.2.2 snj #endif 1175 1.28.2.2 snj } 1176 1.28.2.2 snj 1177 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 1178 1.28.2.2 snj } 1179 1.28.2.2 snj 1180 1.28.2.2 snj static bool 1181 1.28.2.2 snj age_resume(device_t dv PMF_FN_ARGS) 1182 1.28.2.2 snj { 1183 1.28.2.2 snj struct age_softc *sc = device_private(dv); 1184 1.28.2.2 snj uint16_t cmd; 1185 1.28.2.2 snj 1186 1.28.2.2 snj /* 1187 1.28.2.2 snj * Clear INTx emulation disable for hardware that 1188 1.28.2.2 snj * is set in resume event. From Linux. 1189 1.28.2.2 snj */ 1190 1.28.2.2 snj cmd = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 1191 1.28.2.2 snj if ((cmd & PCI_COMMAND_INTERRUPT_DISABLE) != 0) { 1192 1.28.2.2 snj cmd &= ~PCI_COMMAND_INTERRUPT_DISABLE; 1193 1.28.2.2 snj pci_conf_write(sc->sc_pct, sc->sc_pcitag, 1194 1.28.2.2 snj PCI_COMMAND_STATUS_REG, cmd); 1195 1.28.2.2 snj } 1196 1.28.2.2 snj 1197 1.28.2.2 snj return true; 1198 1.28.2.2 snj } 1199 1.28.2.2 snj 1200 1.28.2.2 snj static int 1201 1.28.2.2 snj age_encap(struct age_softc *sc, struct mbuf **m_head) 1202 1.28.2.2 snj { 1203 1.28.2.2 snj struct age_txdesc *txd, *txd_last; 1204 1.28.2.2 snj struct tx_desc *desc; 1205 1.28.2.2 snj struct mbuf *m; 1206 1.28.2.2 snj bus_dmamap_t map; 1207 1.28.2.2 snj uint32_t cflags, poff, vtag; 1208 1.28.2.2 snj int error, i, nsegs, prod; 1209 1.28.2.2 snj #if NVLAN > 0 1210 1.28.2.2 snj struct m_tag *mtag; 1211 1.28.2.2 snj #endif 1212 1.28.2.2 snj 1213 1.28.2.2 snj m = *m_head; 1214 1.28.2.2 snj cflags = vtag = 0; 1215 1.28.2.2 snj poff = 0; 1216 1.28.2.2 snj 1217 1.28.2.2 snj prod = sc->age_cdata.age_tx_prod; 1218 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[prod]; 1219 1.28.2.2 snj txd_last = txd; 1220 1.28.2.2 snj map = txd->tx_dmamap; 1221 1.28.2.2 snj 1222 1.28.2.2 snj error = bus_dmamap_load_mbuf(sc->sc_dmat, map, *m_head, BUS_DMA_NOWAIT); 1223 1.28.2.2 snj 1224 1.28.2.2 snj if (error == EFBIG) { 1225 1.28.2.2 snj error = 0; 1226 1.28.2.2 snj 1227 1.28.2.2 snj MGETHDR(m, M_DONTWAIT, MT_DATA); 1228 1.28.2.2 snj if (m == NULL) { 1229 1.28.2.2 snj printf("%s: can't defrag TX mbuf\n", 1230 1.28.2.2 snj device_xname(sc->sc_dev)); 1231 1.28.2.2 snj m_freem(*m_head); 1232 1.28.2.2 snj *m_head = NULL; 1233 1.28.2.2 snj return ENOBUFS; 1234 1.28.2.2 snj } 1235 1.28.2.2 snj 1236 1.28.2.2 snj M_COPY_PKTHDR(m, *m_head); 1237 1.28.2.2 snj if ((*m_head)->m_pkthdr.len > MHLEN) { 1238 1.28.2.2 snj MCLGET(m, M_DONTWAIT); 1239 1.28.2.2 snj if (!(m->m_flags & M_EXT)) { 1240 1.28.2.2 snj m_freem(*m_head); 1241 1.28.2.2 snj m_freem(m); 1242 1.28.2.2 snj *m_head = NULL; 1243 1.28.2.2 snj return ENOBUFS; 1244 1.28.2.2 snj } 1245 1.28.2.2 snj } 1246 1.28.2.2 snj m_copydata(*m_head, 0, (*m_head)->m_pkthdr.len, 1247 1.28.2.2 snj mtod(m, void *)); 1248 1.28.2.2 snj m_freem(*m_head); 1249 1.28.2.2 snj m->m_len = m->m_pkthdr.len; 1250 1.28.2.2 snj *m_head = m; 1251 1.28.2.2 snj 1252 1.28.2.2 snj error = bus_dmamap_load_mbuf(sc->sc_dmat, map, *m_head, 1253 1.28.2.2 snj BUS_DMA_NOWAIT); 1254 1.28.2.2 snj 1255 1.28.2.2 snj if (error != 0) { 1256 1.28.2.2 snj printf("%s: could not load defragged TX mbuf\n", 1257 1.28.2.2 snj device_xname(sc->sc_dev)); 1258 1.28.2.2 snj if (!error) { 1259 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, map); 1260 1.28.2.2 snj error = EFBIG; 1261 1.28.2.2 snj } 1262 1.28.2.2 snj m_freem(*m_head); 1263 1.28.2.2 snj *m_head = NULL; 1264 1.28.2.2 snj return error; 1265 1.28.2.2 snj } 1266 1.28.2.2 snj } else if (error) { 1267 1.28.2.2 snj printf("%s: could not load TX mbuf\n", device_xname(sc->sc_dev)); 1268 1.28.2.2 snj return error; 1269 1.28.2.2 snj } 1270 1.28.2.2 snj 1271 1.28.2.2 snj nsegs = map->dm_nsegs; 1272 1.28.2.2 snj 1273 1.28.2.2 snj if (nsegs == 0) { 1274 1.28.2.2 snj m_freem(*m_head); 1275 1.28.2.2 snj *m_head = NULL; 1276 1.28.2.2 snj return EIO; 1277 1.28.2.2 snj } 1278 1.28.2.2 snj 1279 1.28.2.2 snj /* Check descriptor overrun. */ 1280 1.28.2.2 snj if (sc->age_cdata.age_tx_cnt + nsegs >= AGE_TX_RING_CNT - 2) { 1281 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, map); 1282 1.28.2.2 snj return ENOBUFS; 1283 1.28.2.2 snj } 1284 1.28.2.2 snj 1285 1.28.2.2 snj m = *m_head; 1286 1.28.2.2 snj /* Configure Tx IP/TCP/UDP checksum offload. */ 1287 1.28.2.2 snj if ((m->m_pkthdr.csum_flags & AGE_CSUM_FEATURES) != 0) { 1288 1.28.2.2 snj cflags |= AGE_TD_CSUM; 1289 1.28.2.2 snj if ((m->m_pkthdr.csum_flags & M_CSUM_TCPv4) != 0) 1290 1.28.2.2 snj cflags |= AGE_TD_TCPCSUM; 1291 1.28.2.2 snj if ((m->m_pkthdr.csum_flags & M_CSUM_UDPv4) != 0) 1292 1.28.2.2 snj cflags |= AGE_TD_UDPCSUM; 1293 1.28.2.2 snj /* Set checksum start offset. */ 1294 1.28.2.2 snj cflags |= (poff << AGE_TD_CSUM_PLOADOFFSET_SHIFT); 1295 1.28.2.2 snj } 1296 1.28.2.2 snj 1297 1.28.2.2 snj #if NVLAN > 0 1298 1.28.2.2 snj /* Configure VLAN hardware tag insertion. */ 1299 1.28.2.2 snj if ((mtag = VLAN_OUTPUT_TAG(&sc->sc_ec, m))) { 1300 1.28.2.2 snj vtag = AGE_TX_VLAN_TAG(htons(VLAN_TAG_VALUE(mtag))); 1301 1.28.2.2 snj vtag = ((vtag << AGE_TD_VLAN_SHIFT) & AGE_TD_VLAN_MASK); 1302 1.28.2.2 snj cflags |= AGE_TD_INSERT_VLAN_TAG; 1303 1.28.2.2 snj } 1304 1.28.2.2 snj #endif 1305 1.28.2.2 snj 1306 1.28.2.2 snj desc = NULL; 1307 1.28.2.2 snj for (i = 0; i < nsegs; i++) { 1308 1.28.2.2 snj desc = &sc->age_rdata.age_tx_ring[prod]; 1309 1.28.2.2 snj desc->addr = htole64(map->dm_segs[i].ds_addr); 1310 1.28.2.2 snj desc->len = 1311 1.28.2.2 snj htole32(AGE_TX_BYTES(map->dm_segs[i].ds_len) | vtag); 1312 1.28.2.2 snj desc->flags = htole32(cflags); 1313 1.28.2.2 snj sc->age_cdata.age_tx_cnt++; 1314 1.28.2.2 snj AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1315 1.28.2.2 snj } 1316 1.28.2.2 snj 1317 1.28.2.2 snj /* Update producer index. */ 1318 1.28.2.2 snj sc->age_cdata.age_tx_prod = prod; 1319 1.28.2.2 snj 1320 1.28.2.2 snj /* Set EOP on the last descriptor. */ 1321 1.28.2.2 snj prod = (prod + AGE_TX_RING_CNT - 1) % AGE_TX_RING_CNT; 1322 1.28.2.2 snj desc = &sc->age_rdata.age_tx_ring[prod]; 1323 1.28.2.2 snj desc->flags |= htole32(AGE_TD_EOP); 1324 1.28.2.2 snj 1325 1.28.2.2 snj /* Swap dmamap of the first and the last. */ 1326 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[prod]; 1327 1.28.2.2 snj map = txd_last->tx_dmamap; 1328 1.28.2.2 snj txd_last->tx_dmamap = txd->tx_dmamap; 1329 1.28.2.2 snj txd->tx_dmamap = map; 1330 1.28.2.2 snj txd->tx_m = m; 1331 1.28.2.2 snj 1332 1.28.2.2 snj /* Sync descriptors. */ 1333 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize, 1334 1.28.2.2 snj BUS_DMASYNC_PREWRITE); 1335 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 0, 1336 1.28.2.2 snj sc->age_cdata.age_tx_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 1337 1.28.2.2 snj 1338 1.28.2.2 snj return 0; 1339 1.28.2.2 snj } 1340 1.28.2.2 snj 1341 1.28.2.2 snj static void 1342 1.28.2.2 snj age_txintr(struct age_softc *sc, int tpd_cons) 1343 1.28.2.2 snj { 1344 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 1345 1.28.2.2 snj struct age_txdesc *txd; 1346 1.28.2.2 snj int cons, prog; 1347 1.28.2.2 snj 1348 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 0, 1349 1.28.2.2 snj sc->age_cdata.age_tx_ring_map->dm_mapsize, BUS_DMASYNC_POSTREAD); 1350 1.28.2.2 snj 1351 1.28.2.2 snj /* 1352 1.28.2.2 snj * Go through our Tx list and free mbufs for those 1353 1.28.2.2 snj * frames which have been transmitted. 1354 1.28.2.2 snj */ 1355 1.28.2.2 snj cons = sc->age_cdata.age_tx_cons; 1356 1.28.2.2 snj for (prog = 0; cons != tpd_cons; AGE_DESC_INC(cons, AGE_TX_RING_CNT)) { 1357 1.28.2.2 snj if (sc->age_cdata.age_tx_cnt <= 0) 1358 1.28.2.2 snj break; 1359 1.28.2.2 snj prog++; 1360 1.28.2.2 snj ifp->if_flags &= ~IFF_OACTIVE; 1361 1.28.2.2 snj sc->age_cdata.age_tx_cnt--; 1362 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[cons]; 1363 1.28.2.2 snj /* 1364 1.28.2.2 snj * Clear Tx descriptors, it's not required but would 1365 1.28.2.2 snj * help debugging in case of Tx issues. 1366 1.28.2.2 snj */ 1367 1.28.2.2 snj txd->tx_desc->addr = 0; 1368 1.28.2.2 snj txd->tx_desc->len = 0; 1369 1.28.2.2 snj txd->tx_desc->flags = 0; 1370 1.28.2.2 snj 1371 1.28.2.2 snj if (txd->tx_m == NULL) 1372 1.28.2.2 snj continue; 1373 1.28.2.2 snj /* Reclaim transmitted mbufs. */ 1374 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, txd->tx_dmamap); 1375 1.28.2.2 snj m_freem(txd->tx_m); 1376 1.28.2.2 snj txd->tx_m = NULL; 1377 1.28.2.2 snj } 1378 1.28.2.2 snj 1379 1.28.2.2 snj if (prog > 0) { 1380 1.28.2.2 snj sc->age_cdata.age_tx_cons = cons; 1381 1.28.2.2 snj 1382 1.28.2.2 snj /* 1383 1.28.2.2 snj * Unarm watchdog timer only when there are no pending 1384 1.28.2.2 snj * Tx descriptors in queue. 1385 1.28.2.2 snj */ 1386 1.28.2.2 snj if (sc->age_cdata.age_tx_cnt == 0) 1387 1.28.2.2 snj ifp->if_timer = 0; 1388 1.28.2.2 snj 1389 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 0, 1390 1.28.2.2 snj sc->age_cdata.age_tx_ring_map->dm_mapsize, 1391 1.28.2.2 snj BUS_DMASYNC_PREWRITE); 1392 1.28.2.2 snj } 1393 1.28.2.2 snj } 1394 1.28.2.2 snj 1395 1.28.2.2 snj /* Receive a frame. */ 1396 1.28.2.2 snj static void 1397 1.28.2.2 snj age_rxeof(struct age_softc *sc, struct rx_rdesc *rxrd) 1398 1.28.2.2 snj { 1399 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 1400 1.28.2.2 snj struct age_rxdesc *rxd; 1401 1.28.2.2 snj struct rx_desc *desc; 1402 1.28.2.2 snj struct mbuf *mp, *m; 1403 1.28.2.2 snj uint32_t status, index; 1404 1.28.2.2 snj int count, nsegs, pktlen; 1405 1.28.2.2 snj int rx_cons; 1406 1.28.2.2 snj 1407 1.28.2.2 snj status = le32toh(rxrd->flags); 1408 1.28.2.2 snj index = le32toh(rxrd->index); 1409 1.28.2.2 snj rx_cons = AGE_RX_CONS(index); 1410 1.28.2.2 snj nsegs = AGE_RX_NSEGS(index); 1411 1.28.2.2 snj 1412 1.28.2.2 snj sc->age_cdata.age_rxlen = AGE_RX_BYTES(le32toh(rxrd->len)); 1413 1.28.2.2 snj if ((status & AGE_RRD_ERROR) != 0 && 1414 1.28.2.2 snj (status & (AGE_RRD_CRC | AGE_RRD_CODE | AGE_RRD_DRIBBLE | 1415 1.28.2.2 snj AGE_RRD_RUNT | AGE_RRD_OFLOW | AGE_RRD_TRUNC)) != 0) { 1416 1.28.2.2 snj /* 1417 1.28.2.2 snj * We want to pass the following frames to upper 1418 1.28.2.2 snj * layer regardless of error status of Rx return 1419 1.28.2.2 snj * ring. 1420 1.28.2.2 snj * 1421 1.28.2.2 snj * o IP/TCP/UDP checksum is bad. 1422 1.28.2.2 snj * o frame length and protocol specific length 1423 1.28.2.2 snj * does not match. 1424 1.28.2.2 snj */ 1425 1.28.2.2 snj sc->age_cdata.age_rx_cons += nsegs; 1426 1.28.2.2 snj sc->age_cdata.age_rx_cons %= AGE_RX_RING_CNT; 1427 1.28.2.2 snj return; 1428 1.28.2.2 snj } 1429 1.28.2.2 snj 1430 1.28.2.2 snj pktlen = 0; 1431 1.28.2.2 snj for (count = 0; count < nsegs; count++, 1432 1.28.2.2 snj AGE_DESC_INC(rx_cons, AGE_RX_RING_CNT)) { 1433 1.28.2.2 snj rxd = &sc->age_cdata.age_rxdesc[rx_cons]; 1434 1.28.2.2 snj mp = rxd->rx_m; 1435 1.28.2.2 snj desc = rxd->rx_desc; 1436 1.28.2.2 snj /* Add a new receive buffer to the ring. */ 1437 1.28.2.2 snj if (age_newbuf(sc, rxd, 0) != 0) { 1438 1.28.2.2 snj ifp->if_iqdrops++; 1439 1.28.2.2 snj /* Reuse Rx buffers. */ 1440 1.28.2.2 snj if (sc->age_cdata.age_rxhead != NULL) { 1441 1.28.2.2 snj m_freem(sc->age_cdata.age_rxhead); 1442 1.28.2.2 snj AGE_RXCHAIN_RESET(sc); 1443 1.28.2.2 snj } 1444 1.28.2.2 snj break; 1445 1.28.2.2 snj } 1446 1.28.2.2 snj 1447 1.28.2.2 snj /* The length of the first mbuf is computed last. */ 1448 1.28.2.2 snj if (count != 0) { 1449 1.28.2.2 snj mp->m_len = AGE_RX_BYTES(le32toh(desc->len)); 1450 1.28.2.2 snj pktlen += mp->m_len; 1451 1.28.2.2 snj } 1452 1.28.2.2 snj 1453 1.28.2.2 snj /* Chain received mbufs. */ 1454 1.28.2.2 snj if (sc->age_cdata.age_rxhead == NULL) { 1455 1.28.2.2 snj sc->age_cdata.age_rxhead = mp; 1456 1.28.2.2 snj sc->age_cdata.age_rxtail = mp; 1457 1.28.2.2 snj } else { 1458 1.28.2.2 snj mp->m_flags &= ~M_PKTHDR; 1459 1.28.2.2 snj sc->age_cdata.age_rxprev_tail = 1460 1.28.2.2 snj sc->age_cdata.age_rxtail; 1461 1.28.2.2 snj sc->age_cdata.age_rxtail->m_next = mp; 1462 1.28.2.2 snj sc->age_cdata.age_rxtail = mp; 1463 1.28.2.2 snj } 1464 1.28.2.2 snj 1465 1.28.2.2 snj if (count == nsegs - 1) { 1466 1.28.2.2 snj /* 1467 1.28.2.2 snj * It seems that L1 controller has no way 1468 1.28.2.2 snj * to tell hardware to strip CRC bytes. 1469 1.28.2.2 snj */ 1470 1.28.2.2 snj sc->age_cdata.age_rxlen -= ETHER_CRC_LEN; 1471 1.28.2.2 snj if (nsegs > 1) { 1472 1.28.2.2 snj /* Remove the CRC bytes in chained mbufs. */ 1473 1.28.2.2 snj pktlen -= ETHER_CRC_LEN; 1474 1.28.2.2 snj if (mp->m_len <= ETHER_CRC_LEN) { 1475 1.28.2.2 snj sc->age_cdata.age_rxtail = 1476 1.28.2.2 snj sc->age_cdata.age_rxprev_tail; 1477 1.28.2.2 snj sc->age_cdata.age_rxtail->m_len -= 1478 1.28.2.2 snj (ETHER_CRC_LEN - mp->m_len); 1479 1.28.2.2 snj sc->age_cdata.age_rxtail->m_next = NULL; 1480 1.28.2.2 snj m_freem(mp); 1481 1.28.2.2 snj } else { 1482 1.28.2.2 snj mp->m_len -= ETHER_CRC_LEN; 1483 1.28.2.2 snj } 1484 1.28.2.2 snj } 1485 1.28.2.2 snj 1486 1.28.2.2 snj m = sc->age_cdata.age_rxhead; 1487 1.28.2.2 snj m->m_flags |= M_PKTHDR; 1488 1.28.2.2 snj m->m_pkthdr.rcvif = ifp; 1489 1.28.2.2 snj m->m_pkthdr.len = sc->age_cdata.age_rxlen; 1490 1.28.2.2 snj /* Set the first mbuf length. */ 1491 1.28.2.2 snj m->m_len = sc->age_cdata.age_rxlen - pktlen; 1492 1.28.2.2 snj 1493 1.28.2.2 snj /* 1494 1.28.2.2 snj * Set checksum information. 1495 1.28.2.2 snj * It seems that L1 controller can compute partial 1496 1.28.2.2 snj * checksum. The partial checksum value can be used 1497 1.28.2.2 snj * to accelerate checksum computation for fragmented 1498 1.28.2.2 snj * TCP/UDP packets. Upper network stack already 1499 1.28.2.2 snj * takes advantage of the partial checksum value in 1500 1.28.2.2 snj * IP reassembly stage. But I'm not sure the 1501 1.28.2.2 snj * correctness of the partial hardware checksum 1502 1.28.2.2 snj * assistance due to lack of data sheet. If it is 1503 1.28.2.2 snj * proven to work on L1 I'll enable it. 1504 1.28.2.2 snj */ 1505 1.28.2.2 snj if (status & AGE_RRD_IPV4) { 1506 1.28.2.2 snj if (status & AGE_RRD_IPCSUM_NOK) 1507 1.28.2.2 snj m->m_pkthdr.csum_flags |= 1508 1.28.2.2 snj M_CSUM_IPv4_BAD; 1509 1.28.2.2 snj if ((status & (AGE_RRD_TCP | AGE_RRD_UDP)) && 1510 1.28.2.2 snj (status & AGE_RRD_TCP_UDPCSUM_NOK)) { 1511 1.28.2.2 snj m->m_pkthdr.csum_flags |= 1512 1.28.2.2 snj M_CSUM_TCP_UDP_BAD; 1513 1.28.2.2 snj } 1514 1.28.2.2 snj /* 1515 1.28.2.2 snj * Don't mark bad checksum for TCP/UDP frames 1516 1.28.2.2 snj * as fragmented frames may always have set 1517 1.28.2.2 snj * bad checksummed bit of descriptor status. 1518 1.28.2.2 snj */ 1519 1.28.2.2 snj } 1520 1.28.2.2 snj #if NVLAN > 0 1521 1.28.2.2 snj /* Check for VLAN tagged frames. */ 1522 1.28.2.2 snj if (status & AGE_RRD_VLAN) { 1523 1.28.2.2 snj uint32_t vtag = AGE_RX_VLAN(le32toh(rxrd->vtags)); 1524 1.28.2.2 snj VLAN_INPUT_TAG(ifp, m, AGE_RX_VLAN_TAG(vtag), 1525 1.28.2.2 snj continue); 1526 1.28.2.2 snj } 1527 1.28.2.2 snj #endif 1528 1.28.2.2 snj 1529 1.28.2.2 snj #if NBPFILTER > 0 1530 1.28.2.2 snj if (ifp->if_bpf) 1531 1.28.2.2 snj bpf_mtap(ifp->if_bpf, m); 1532 1.28.2.2 snj #endif 1533 1.28.2.2 snj /* Pass it on. */ 1534 1.28.2.2 snj ether_input(ifp, m); 1535 1.28.2.2 snj 1536 1.28.2.2 snj /* Reset mbuf chains. */ 1537 1.28.2.2 snj AGE_RXCHAIN_RESET(sc); 1538 1.28.2.2 snj } 1539 1.28.2.2 snj } 1540 1.28.2.2 snj 1541 1.28.2.2 snj if (count != nsegs) { 1542 1.28.2.2 snj sc->age_cdata.age_rx_cons += nsegs; 1543 1.28.2.2 snj sc->age_cdata.age_rx_cons %= AGE_RX_RING_CNT; 1544 1.28.2.2 snj } else 1545 1.28.2.2 snj sc->age_cdata.age_rx_cons = rx_cons; 1546 1.28.2.2 snj } 1547 1.28.2.2 snj 1548 1.28.2.2 snj static void 1549 1.28.2.2 snj age_rxintr(struct age_softc *sc, int rr_prod) 1550 1.28.2.2 snj { 1551 1.28.2.2 snj struct rx_rdesc *rxrd; 1552 1.28.2.2 snj int rr_cons, nsegs, pktlen, prog; 1553 1.28.2.2 snj 1554 1.28.2.2 snj rr_cons = sc->age_cdata.age_rr_cons; 1555 1.28.2.2 snj if (rr_cons == rr_prod) 1556 1.28.2.2 snj return; 1557 1.28.2.2 snj 1558 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 1559 1.28.2.2 snj sc->age_cdata.age_rr_ring_map->dm_mapsize, 1560 1.28.2.2 snj BUS_DMASYNC_POSTREAD); 1561 1.28.2.2 snj 1562 1.28.2.2 snj for (prog = 0; rr_cons != rr_prod; prog++) { 1563 1.28.2.2 snj rxrd = &sc->age_rdata.age_rr_ring[rr_cons]; 1564 1.28.2.2 snj nsegs = AGE_RX_NSEGS(le32toh(rxrd->index)); 1565 1.28.2.2 snj if (nsegs == 0) 1566 1.28.2.2 snj break; 1567 1.28.2.2 snj /* 1568 1.28.2.2 snj * Check number of segments against received bytes 1569 1.28.2.2 snj * Non-matching value would indicate that hardware 1570 1.28.2.2 snj * is still trying to update Rx return descriptors. 1571 1.28.2.2 snj * I'm not sure whether this check is really needed. 1572 1.28.2.2 snj */ 1573 1.28.2.2 snj pktlen = AGE_RX_BYTES(le32toh(rxrd->len)); 1574 1.28.2.2 snj if (nsegs != ((pktlen + (MCLBYTES - ETHER_ALIGN - 1)) / 1575 1.28.2.2 snj (MCLBYTES - ETHER_ALIGN))) 1576 1.28.2.2 snj break; 1577 1.28.2.2 snj 1578 1.28.2.2 snj /* Received a frame. */ 1579 1.28.2.2 snj age_rxeof(sc, rxrd); 1580 1.28.2.2 snj 1581 1.28.2.2 snj /* Clear return ring. */ 1582 1.28.2.2 snj rxrd->index = 0; 1583 1.28.2.2 snj AGE_DESC_INC(rr_cons, AGE_RR_RING_CNT); 1584 1.28.2.2 snj } 1585 1.28.2.2 snj 1586 1.28.2.2 snj if (prog > 0) { 1587 1.28.2.2 snj /* Update the consumer index. */ 1588 1.28.2.2 snj sc->age_cdata.age_rr_cons = rr_cons; 1589 1.28.2.2 snj 1590 1.28.2.2 snj /* Sync descriptors. */ 1591 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 1592 1.28.2.2 snj sc->age_cdata.age_rr_ring_map->dm_mapsize, 1593 1.28.2.2 snj BUS_DMASYNC_PREWRITE); 1594 1.28.2.2 snj 1595 1.28.2.2 snj /* Notify hardware availability of new Rx buffers. */ 1596 1.28.2.2 snj AGE_COMMIT_MBOX(sc); 1597 1.28.2.2 snj } 1598 1.28.2.2 snj } 1599 1.28.2.2 snj 1600 1.28.2.2 snj static void 1601 1.28.2.2 snj age_tick(void *xsc) 1602 1.28.2.2 snj { 1603 1.28.2.2 snj struct age_softc *sc = xsc; 1604 1.28.2.2 snj struct mii_data *mii = &sc->sc_miibus; 1605 1.28.2.2 snj int s; 1606 1.28.2.2 snj 1607 1.28.2.2 snj s = splnet(); 1608 1.28.2.2 snj mii_tick(mii); 1609 1.28.2.2 snj splx(s); 1610 1.28.2.2 snj 1611 1.28.2.2 snj callout_schedule(&sc->sc_tick_ch, hz); 1612 1.28.2.2 snj } 1613 1.28.2.2 snj 1614 1.28.2.2 snj static void 1615 1.28.2.2 snj age_reset(struct age_softc *sc) 1616 1.28.2.2 snj { 1617 1.28.2.2 snj uint32_t reg; 1618 1.28.2.2 snj int i; 1619 1.28.2.2 snj 1620 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MASTER_CFG, MASTER_RESET); 1621 1.28.2.2 snj for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 1622 1.28.2.2 snj DELAY(1); 1623 1.28.2.2 snj if ((CSR_READ_4(sc, AGE_MASTER_CFG) & MASTER_RESET) == 0) 1624 1.28.2.2 snj break; 1625 1.28.2.2 snj } 1626 1.28.2.2 snj if (i == 0) 1627 1.28.2.2 snj printf("%s: master reset timeout!\n", device_xname(sc->sc_dev)); 1628 1.28.2.2 snj 1629 1.28.2.2 snj for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 1630 1.28.2.2 snj if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 1631 1.28.2.2 snj break; 1632 1.28.2.2 snj DELAY(10); 1633 1.28.2.2 snj } 1634 1.28.2.2 snj 1635 1.28.2.2 snj if (i == 0) 1636 1.28.2.2 snj printf("%s: reset timeout(0x%08x)!\n", device_xname(sc->sc_dev), 1637 1.28.2.2 snj reg); 1638 1.28.2.2 snj 1639 1.28.2.2 snj /* Initialize PCIe module. From Linux. */ 1640 1.28.2.2 snj CSR_WRITE_4(sc, 0x12FC, 0x6500); 1641 1.28.2.2 snj CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 1642 1.28.2.2 snj } 1643 1.28.2.2 snj 1644 1.28.2.2 snj static int 1645 1.28.2.2 snj age_init(struct ifnet *ifp) 1646 1.28.2.2 snj { 1647 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 1648 1.28.2.2 snj struct mii_data *mii; 1649 1.28.2.2 snj uint8_t eaddr[ETHER_ADDR_LEN]; 1650 1.28.2.2 snj bus_addr_t paddr; 1651 1.28.2.2 snj uint32_t reg, fsize; 1652 1.28.2.2 snj uint32_t rxf_hi, rxf_lo, rrd_hi, rrd_lo; 1653 1.28.2.2 snj int error; 1654 1.28.2.2 snj 1655 1.28.2.2 snj /* 1656 1.28.2.2 snj * Cancel any pending I/O. 1657 1.28.2.2 snj */ 1658 1.28.2.2 snj age_stop(ifp, 0); 1659 1.28.2.2 snj 1660 1.28.2.2 snj /* 1661 1.28.2.2 snj * Reset the chip to a known state. 1662 1.28.2.2 snj */ 1663 1.28.2.2 snj age_reset(sc); 1664 1.28.2.2 snj 1665 1.28.2.2 snj /* Initialize descriptors. */ 1666 1.28.2.2 snj error = age_init_rx_ring(sc); 1667 1.28.2.2 snj if (error != 0) { 1668 1.28.2.2 snj printf("%s: no memory for Rx buffers.\n", device_xname(sc->sc_dev)); 1669 1.28.2.2 snj age_stop(ifp, 0); 1670 1.28.2.2 snj return error; 1671 1.28.2.2 snj } 1672 1.28.2.2 snj age_init_rr_ring(sc); 1673 1.28.2.2 snj age_init_tx_ring(sc); 1674 1.28.2.2 snj age_init_cmb_block(sc); 1675 1.28.2.2 snj age_init_smb_block(sc); 1676 1.28.2.2 snj 1677 1.28.2.2 snj /* Reprogram the station address. */ 1678 1.28.2.2 snj memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 1679 1.28.2.2 snj CSR_WRITE_4(sc, AGE_PAR0, 1680 1.28.2.2 snj eaddr[2] << 24 | eaddr[3] << 16 | eaddr[4] << 8 | eaddr[5]); 1681 1.28.2.2 snj CSR_WRITE_4(sc, AGE_PAR1, eaddr[0] << 8 | eaddr[1]); 1682 1.28.2.2 snj 1683 1.28.2.2 snj /* Set descriptor base addresses. */ 1684 1.28.2.2 snj paddr = sc->age_rdata.age_tx_ring_paddr; 1685 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_ADDR_HI, AGE_ADDR_HI(paddr)); 1686 1.28.2.2 snj paddr = sc->age_rdata.age_rx_ring_paddr; 1687 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_RD_ADDR_LO, AGE_ADDR_LO(paddr)); 1688 1.28.2.2 snj paddr = sc->age_rdata.age_rr_ring_paddr; 1689 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_RRD_ADDR_LO, AGE_ADDR_LO(paddr)); 1690 1.28.2.2 snj paddr = sc->age_rdata.age_tx_ring_paddr; 1691 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_TPD_ADDR_LO, AGE_ADDR_LO(paddr)); 1692 1.28.2.2 snj paddr = sc->age_rdata.age_cmb_block_paddr; 1693 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_CMB_ADDR_LO, AGE_ADDR_LO(paddr)); 1694 1.28.2.2 snj paddr = sc->age_rdata.age_smb_block_paddr; 1695 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_SMB_ADDR_LO, AGE_ADDR_LO(paddr)); 1696 1.28.2.2 snj 1697 1.28.2.2 snj /* Set Rx/Rx return descriptor counter. */ 1698 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_RRD_RD_CNT, 1699 1.28.2.2 snj ((AGE_RR_RING_CNT << DESC_RRD_CNT_SHIFT) & 1700 1.28.2.2 snj DESC_RRD_CNT_MASK) | 1701 1.28.2.2 snj ((AGE_RX_RING_CNT << DESC_RD_CNT_SHIFT) & DESC_RD_CNT_MASK)); 1702 1.28.2.2 snj 1703 1.28.2.2 snj /* Set Tx descriptor counter. */ 1704 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DESC_TPD_CNT, 1705 1.28.2.2 snj (AGE_TX_RING_CNT << DESC_TPD_CNT_SHIFT) & DESC_TPD_CNT_MASK); 1706 1.28.2.2 snj 1707 1.28.2.2 snj /* Tell hardware that we're ready to load descriptors. */ 1708 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_BLOCK, DMA_BLOCK_LOAD); 1709 1.28.2.2 snj 1710 1.28.2.2 snj /* 1711 1.28.2.2 snj * Initialize mailbox register. 1712 1.28.2.2 snj * Updated producer/consumer index information is exchanged 1713 1.28.2.2 snj * through this mailbox register. However Tx producer and 1714 1.28.2.2 snj * Rx return consumer/Rx producer are all shared such that 1715 1.28.2.2 snj * it's hard to separate code path between Tx and Rx without 1716 1.28.2.2 snj * locking. If L1 hardware have a separate mail box register 1717 1.28.2.2 snj * for Tx and Rx consumer/producer management we could have 1718 1.28.2.2 snj * indepent Tx/Rx handler which in turn Rx handler could have 1719 1.28.2.2 snj * been run without any locking. 1720 1.28.2.2 snj */ 1721 1.28.2.2 snj AGE_COMMIT_MBOX(sc); 1722 1.28.2.2 snj 1723 1.28.2.2 snj /* Configure IPG/IFG parameters. */ 1724 1.28.2.2 snj CSR_WRITE_4(sc, AGE_IPG_IFG_CFG, 1725 1.28.2.2 snj ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) & IPG_IFG_IPG2_MASK) | 1726 1.28.2.2 snj ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) & IPG_IFG_IPG1_MASK) | 1727 1.28.2.2 snj ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) & IPG_IFG_MIFG_MASK) | 1728 1.28.2.2 snj ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) & IPG_IFG_IPGT_MASK)); 1729 1.28.2.2 snj 1730 1.28.2.2 snj /* Set parameters for half-duplex media. */ 1731 1.28.2.2 snj CSR_WRITE_4(sc, AGE_HDPX_CFG, 1732 1.28.2.2 snj ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) & 1733 1.28.2.2 snj HDPX_CFG_LCOL_MASK) | 1734 1.28.2.2 snj ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) & 1735 1.28.2.2 snj HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN | 1736 1.28.2.2 snj ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) & 1737 1.28.2.2 snj HDPX_CFG_ABEBT_MASK) | 1738 1.28.2.2 snj ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) & 1739 1.28.2.2 snj HDPX_CFG_JAMIPG_MASK)); 1740 1.28.2.2 snj 1741 1.28.2.2 snj /* Configure interrupt moderation timer. */ 1742 1.28.2.2 snj sc->age_int_mod = AGE_IM_TIMER_DEFAULT; 1743 1.28.2.2 snj CSR_WRITE_2(sc, AGE_IM_TIMER, AGE_USECS(sc->age_int_mod)); 1744 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MASTER_CFG); 1745 1.28.2.2 snj reg &= ~MASTER_MTIMER_ENB; 1746 1.28.2.2 snj if (AGE_USECS(sc->age_int_mod) == 0) 1747 1.28.2.2 snj reg &= ~MASTER_ITIMER_ENB; 1748 1.28.2.2 snj else 1749 1.28.2.2 snj reg |= MASTER_ITIMER_ENB; 1750 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MASTER_CFG, reg); 1751 1.28.2.2 snj if (agedebug) 1752 1.28.2.2 snj printf("%s: interrupt moderation is %d us.\n", 1753 1.28.2.2 snj device_xname(sc->sc_dev), sc->age_int_mod); 1754 1.28.2.2 snj CSR_WRITE_2(sc, AGE_INTR_CLR_TIMER, AGE_USECS(1000)); 1755 1.28.2.2 snj 1756 1.28.2.2 snj /* Set Maximum frame size but don't let MTU be lass than ETHER_MTU. */ 1757 1.28.2.2 snj if (ifp->if_mtu < ETHERMTU) 1758 1.28.2.2 snj sc->age_max_frame_size = ETHERMTU; 1759 1.28.2.2 snj else 1760 1.28.2.2 snj sc->age_max_frame_size = ifp->if_mtu; 1761 1.28.2.2 snj sc->age_max_frame_size += ETHER_HDR_LEN + 1762 1.28.2.2 snj sizeof(struct ether_vlan_header) + ETHER_CRC_LEN; 1763 1.28.2.2 snj CSR_WRITE_4(sc, AGE_FRAME_SIZE, sc->age_max_frame_size); 1764 1.28.2.2 snj 1765 1.28.2.2 snj /* Configure jumbo frame. */ 1766 1.28.2.2 snj fsize = roundup(sc->age_max_frame_size, sizeof(uint64_t)); 1767 1.28.2.2 snj CSR_WRITE_4(sc, AGE_RXQ_JUMBO_CFG, 1768 1.28.2.2 snj (((fsize / sizeof(uint64_t)) << 1769 1.28.2.2 snj RXQ_JUMBO_CFG_SZ_THRESH_SHIFT) & RXQ_JUMBO_CFG_SZ_THRESH_MASK) | 1770 1.28.2.2 snj ((RXQ_JUMBO_CFG_LKAH_DEFAULT << 1771 1.28.2.2 snj RXQ_JUMBO_CFG_LKAH_SHIFT) & RXQ_JUMBO_CFG_LKAH_MASK) | 1772 1.28.2.2 snj ((AGE_USECS(8) << RXQ_JUMBO_CFG_RRD_TIMER_SHIFT) & 1773 1.28.2.2 snj RXQ_JUMBO_CFG_RRD_TIMER_MASK)); 1774 1.28.2.2 snj 1775 1.28.2.2 snj /* Configure flow-control parameters. From Linux. */ 1776 1.28.2.2 snj if ((sc->age_flags & AGE_FLAG_PCIE) != 0) { 1777 1.28.2.2 snj /* 1778 1.28.2.2 snj * Magic workaround for old-L1. 1779 1.28.2.2 snj * Don't know which hw revision requires this magic. 1780 1.28.2.2 snj */ 1781 1.28.2.2 snj CSR_WRITE_4(sc, 0x12FC, 0x6500); 1782 1.28.2.2 snj /* 1783 1.28.2.2 snj * Another magic workaround for flow-control mode 1784 1.28.2.2 snj * change. From Linux. 1785 1.28.2.2 snj */ 1786 1.28.2.2 snj CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 1787 1.28.2.2 snj } 1788 1.28.2.2 snj /* 1789 1.28.2.2 snj * TODO 1790 1.28.2.2 snj * Should understand pause parameter relationships between FIFO 1791 1.28.2.2 snj * size and number of Rx descriptors and Rx return descriptors. 1792 1.28.2.2 snj * 1793 1.28.2.2 snj * Magic parameters came from Linux. 1794 1.28.2.2 snj */ 1795 1.28.2.2 snj switch (sc->age_chip_rev) { 1796 1.28.2.2 snj case 0x8001: 1797 1.28.2.2 snj case 0x9001: 1798 1.28.2.2 snj case 0x9002: 1799 1.28.2.2 snj case 0x9003: 1800 1.28.2.2 snj rxf_hi = AGE_RX_RING_CNT / 16; 1801 1.28.2.2 snj rxf_lo = (AGE_RX_RING_CNT * 7) / 8; 1802 1.28.2.2 snj rrd_hi = (AGE_RR_RING_CNT * 7) / 8; 1803 1.28.2.2 snj rrd_lo = AGE_RR_RING_CNT / 16; 1804 1.28.2.2 snj break; 1805 1.28.2.2 snj default: 1806 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN); 1807 1.28.2.2 snj rxf_lo = reg / 16; 1808 1.28.2.2 snj if (rxf_lo < 192) 1809 1.28.2.2 snj rxf_lo = 192; 1810 1.28.2.2 snj rxf_hi = (reg * 7) / 8; 1811 1.28.2.2 snj if (rxf_hi < rxf_lo) 1812 1.28.2.2 snj rxf_hi = rxf_lo + 16; 1813 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_SRAM_RRD_LEN); 1814 1.28.2.2 snj rrd_lo = reg / 8; 1815 1.28.2.2 snj rrd_hi = (reg * 7) / 8; 1816 1.28.2.2 snj if (rrd_lo < 2) 1817 1.28.2.2 snj rrd_lo = 2; 1818 1.28.2.2 snj if (rrd_hi < rrd_lo) 1819 1.28.2.2 snj rrd_hi = rrd_lo + 3; 1820 1.28.2.2 snj break; 1821 1.28.2.2 snj } 1822 1.28.2.2 snj CSR_WRITE_4(sc, AGE_RXQ_FIFO_PAUSE_THRESH, 1823 1.28.2.2 snj ((rxf_lo << RXQ_FIFO_PAUSE_THRESH_LO_SHIFT) & 1824 1.28.2.2 snj RXQ_FIFO_PAUSE_THRESH_LO_MASK) | 1825 1.28.2.2 snj ((rxf_hi << RXQ_FIFO_PAUSE_THRESH_HI_SHIFT) & 1826 1.28.2.2 snj RXQ_FIFO_PAUSE_THRESH_HI_MASK)); 1827 1.28.2.2 snj CSR_WRITE_4(sc, AGE_RXQ_RRD_PAUSE_THRESH, 1828 1.28.2.2 snj ((rrd_lo << RXQ_RRD_PAUSE_THRESH_LO_SHIFT) & 1829 1.28.2.2 snj RXQ_RRD_PAUSE_THRESH_LO_MASK) | 1830 1.28.2.2 snj ((rrd_hi << RXQ_RRD_PAUSE_THRESH_HI_SHIFT) & 1831 1.28.2.2 snj RXQ_RRD_PAUSE_THRESH_HI_MASK)); 1832 1.28.2.2 snj 1833 1.28.2.2 snj /* Configure RxQ. */ 1834 1.28.2.2 snj CSR_WRITE_4(sc, AGE_RXQ_CFG, 1835 1.28.2.2 snj ((RXQ_CFG_RD_BURST_DEFAULT << RXQ_CFG_RD_BURST_SHIFT) & 1836 1.28.2.2 snj RXQ_CFG_RD_BURST_MASK) | 1837 1.28.2.2 snj ((RXQ_CFG_RRD_BURST_THRESH_DEFAULT << 1838 1.28.2.2 snj RXQ_CFG_RRD_BURST_THRESH_SHIFT) & RXQ_CFG_RRD_BURST_THRESH_MASK) | 1839 1.28.2.2 snj ((RXQ_CFG_RD_PREF_MIN_IPG_DEFAULT << 1840 1.28.2.2 snj RXQ_CFG_RD_PREF_MIN_IPG_SHIFT) & RXQ_CFG_RD_PREF_MIN_IPG_MASK) | 1841 1.28.2.2 snj RXQ_CFG_CUT_THROUGH_ENB | RXQ_CFG_ENB); 1842 1.28.2.2 snj 1843 1.28.2.2 snj /* Configure TxQ. */ 1844 1.28.2.2 snj CSR_WRITE_4(sc, AGE_TXQ_CFG, 1845 1.28.2.2 snj ((TXQ_CFG_TPD_BURST_DEFAULT << TXQ_CFG_TPD_BURST_SHIFT) & 1846 1.28.2.2 snj TXQ_CFG_TPD_BURST_MASK) | 1847 1.28.2.2 snj ((TXQ_CFG_TX_FIFO_BURST_DEFAULT << TXQ_CFG_TX_FIFO_BURST_SHIFT) & 1848 1.28.2.2 snj TXQ_CFG_TX_FIFO_BURST_MASK) | 1849 1.28.2.2 snj ((TXQ_CFG_TPD_FETCH_DEFAULT << 1850 1.28.2.2 snj TXQ_CFG_TPD_FETCH_THRESH_SHIFT) & TXQ_CFG_TPD_FETCH_THRESH_MASK) | 1851 1.28.2.2 snj TXQ_CFG_ENB); 1852 1.28.2.2 snj 1853 1.28.2.2 snj /* Configure DMA parameters. */ 1854 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_CFG, 1855 1.28.2.2 snj DMA_CFG_ENH_ORDER | DMA_CFG_RCB_64 | 1856 1.28.2.2 snj sc->age_dma_rd_burst | DMA_CFG_RD_ENB | 1857 1.28.2.2 snj sc->age_dma_wr_burst | DMA_CFG_WR_ENB); 1858 1.28.2.2 snj 1859 1.28.2.2 snj /* Configure CMB DMA write threshold. */ 1860 1.28.2.2 snj CSR_WRITE_4(sc, AGE_CMB_WR_THRESH, 1861 1.28.2.2 snj ((CMB_WR_THRESH_RRD_DEFAULT << CMB_WR_THRESH_RRD_SHIFT) & 1862 1.28.2.2 snj CMB_WR_THRESH_RRD_MASK) | 1863 1.28.2.2 snj ((CMB_WR_THRESH_TPD_DEFAULT << CMB_WR_THRESH_TPD_SHIFT) & 1864 1.28.2.2 snj CMB_WR_THRESH_TPD_MASK)); 1865 1.28.2.2 snj 1866 1.28.2.2 snj /* Set CMB/SMB timer and enable them. */ 1867 1.28.2.2 snj CSR_WRITE_4(sc, AGE_CMB_WR_TIMER, 1868 1.28.2.2 snj ((AGE_USECS(2) << CMB_WR_TIMER_TX_SHIFT) & CMB_WR_TIMER_TX_MASK) | 1869 1.28.2.2 snj ((AGE_USECS(2) << CMB_WR_TIMER_RX_SHIFT) & CMB_WR_TIMER_RX_MASK)); 1870 1.28.2.2 snj 1871 1.28.2.2 snj /* Request SMB updates for every seconds. */ 1872 1.28.2.2 snj CSR_WRITE_4(sc, AGE_SMB_TIMER, AGE_USECS(1000 * 1000)); 1873 1.28.2.2 snj CSR_WRITE_4(sc, AGE_CSMB_CTRL, CSMB_CTRL_SMB_ENB | CSMB_CTRL_CMB_ENB); 1874 1.28.2.2 snj 1875 1.28.2.2 snj /* 1876 1.28.2.2 snj * Disable all WOL bits as WOL can interfere normal Rx 1877 1.28.2.2 snj * operation. 1878 1.28.2.2 snj */ 1879 1.28.2.2 snj CSR_WRITE_4(sc, AGE_WOL_CFG, 0); 1880 1.28.2.2 snj 1881 1.28.2.2 snj /* 1882 1.28.2.2 snj * Configure Tx/Rx MACs. 1883 1.28.2.2 snj * - Auto-padding for short frames. 1884 1.28.2.2 snj * - Enable CRC generation. 1885 1.28.2.2 snj * Start with full-duplex/1000Mbps media. Actual reconfiguration 1886 1.28.2.2 snj * of MAC is followed after link establishment. 1887 1.28.2.2 snj */ 1888 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, 1889 1.28.2.2 snj MAC_CFG_TX_CRC_ENB | MAC_CFG_TX_AUTO_PAD | 1890 1.28.2.2 snj MAC_CFG_FULL_DUPLEX | MAC_CFG_SPEED_1000 | 1891 1.28.2.2 snj ((MAC_CFG_PREAMBLE_DEFAULT << MAC_CFG_PREAMBLE_SHIFT) & 1892 1.28.2.2 snj MAC_CFG_PREAMBLE_MASK)); 1893 1.28.2.2 snj 1894 1.28.2.2 snj /* Set up the receive filter. */ 1895 1.28.2.2 snj age_rxfilter(sc); 1896 1.28.2.2 snj age_rxvlan(sc); 1897 1.28.2.2 snj 1898 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 1899 1.28.2.2 snj reg |= MAC_CFG_RXCSUM_ENB; 1900 1.28.2.2 snj 1901 1.28.2.2 snj /* Ack all pending interrupts and clear it. */ 1902 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_STATUS, 0); 1903 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_MASK, AGE_INTRS); 1904 1.28.2.2 snj 1905 1.28.2.2 snj /* Finally enable Tx/Rx MAC. */ 1906 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg | MAC_CFG_TX_ENB | MAC_CFG_RX_ENB); 1907 1.28.2.2 snj 1908 1.28.2.2 snj sc->age_flags &= ~AGE_FLAG_LINK; 1909 1.28.2.2 snj 1910 1.28.2.2 snj /* Switch to the current media. */ 1911 1.28.2.2 snj mii = &sc->sc_miibus; 1912 1.28.2.2 snj mii_mediachg(mii); 1913 1.28.2.2 snj 1914 1.28.2.2 snj callout_schedule(&sc->sc_tick_ch, hz); 1915 1.28.2.2 snj 1916 1.28.2.2 snj ifp->if_flags |= IFF_RUNNING; 1917 1.28.2.2 snj ifp->if_flags &= ~IFF_OACTIVE; 1918 1.28.2.2 snj 1919 1.28.2.2 snj return 0; 1920 1.28.2.2 snj } 1921 1.28.2.2 snj 1922 1.28.2.2 snj static void 1923 1.28.2.2 snj age_stop(struct ifnet *ifp, int disable) 1924 1.28.2.2 snj { 1925 1.28.2.2 snj struct age_softc *sc = ifp->if_softc; 1926 1.28.2.2 snj struct age_txdesc *txd; 1927 1.28.2.2 snj struct age_rxdesc *rxd; 1928 1.28.2.2 snj uint32_t reg; 1929 1.28.2.2 snj int i; 1930 1.28.2.2 snj 1931 1.28.2.2 snj callout_stop(&sc->sc_tick_ch); 1932 1.28.2.2 snj 1933 1.28.2.2 snj /* 1934 1.28.2.2 snj * Mark the interface down and cancel the watchdog timer. 1935 1.28.2.2 snj */ 1936 1.28.2.2 snj ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1937 1.28.2.2 snj ifp->if_timer = 0; 1938 1.28.2.2 snj 1939 1.28.2.2 snj sc->age_flags &= ~AGE_FLAG_LINK; 1940 1.28.2.2 snj 1941 1.28.2.2 snj mii_down(&sc->sc_miibus); 1942 1.28.2.2 snj 1943 1.28.2.2 snj /* 1944 1.28.2.2 snj * Disable interrupts. 1945 1.28.2.2 snj */ 1946 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_MASK, 0); 1947 1.28.2.2 snj CSR_WRITE_4(sc, AGE_INTR_STATUS, 0xFFFFFFFF); 1948 1.28.2.2 snj 1949 1.28.2.2 snj /* Stop CMB/SMB updates. */ 1950 1.28.2.2 snj CSR_WRITE_4(sc, AGE_CSMB_CTRL, 0); 1951 1.28.2.2 snj 1952 1.28.2.2 snj /* Stop Rx/Tx MAC. */ 1953 1.28.2.2 snj age_stop_rxmac(sc); 1954 1.28.2.2 snj age_stop_txmac(sc); 1955 1.28.2.2 snj 1956 1.28.2.2 snj /* Stop DMA. */ 1957 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_CFG, 1958 1.28.2.2 snj CSR_READ_4(sc, AGE_DMA_CFG) & ~(DMA_CFG_RD_ENB | DMA_CFG_WR_ENB)); 1959 1.28.2.2 snj 1960 1.28.2.2 snj /* Stop TxQ/RxQ. */ 1961 1.28.2.2 snj CSR_WRITE_4(sc, AGE_TXQ_CFG, 1962 1.28.2.2 snj CSR_READ_4(sc, AGE_TXQ_CFG) & ~TXQ_CFG_ENB); 1963 1.28.2.2 snj CSR_WRITE_4(sc, AGE_RXQ_CFG, 1964 1.28.2.2 snj CSR_READ_4(sc, AGE_RXQ_CFG) & ~RXQ_CFG_ENB); 1965 1.28.2.2 snj for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 1966 1.28.2.2 snj if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 1967 1.28.2.2 snj break; 1968 1.28.2.2 snj DELAY(10); 1969 1.28.2.2 snj } 1970 1.28.2.2 snj if (i == 0) 1971 1.28.2.2 snj printf("%s: stopping Rx/Tx MACs timed out(0x%08x)!\n", 1972 1.28.2.2 snj device_xname(sc->sc_dev), reg); 1973 1.28.2.2 snj 1974 1.28.2.2 snj /* Reclaim Rx buffers that have been processed. */ 1975 1.28.2.2 snj if (sc->age_cdata.age_rxhead != NULL) 1976 1.28.2.2 snj m_freem(sc->age_cdata.age_rxhead); 1977 1.28.2.2 snj AGE_RXCHAIN_RESET(sc); 1978 1.28.2.2 snj 1979 1.28.2.2 snj /* 1980 1.28.2.2 snj * Free RX and TX mbufs still in the queues. 1981 1.28.2.2 snj */ 1982 1.28.2.2 snj for (i = 0; i < AGE_RX_RING_CNT; i++) { 1983 1.28.2.2 snj rxd = &sc->age_cdata.age_rxdesc[i]; 1984 1.28.2.2 snj if (rxd->rx_m != NULL) { 1985 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, rxd->rx_dmamap); 1986 1.28.2.2 snj m_freem(rxd->rx_m); 1987 1.28.2.2 snj rxd->rx_m = NULL; 1988 1.28.2.2 snj } 1989 1.28.2.2 snj } 1990 1.28.2.2 snj for (i = 0; i < AGE_TX_RING_CNT; i++) { 1991 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[i]; 1992 1.28.2.2 snj if (txd->tx_m != NULL) { 1993 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, txd->tx_dmamap); 1994 1.28.2.2 snj m_freem(txd->tx_m); 1995 1.28.2.2 snj txd->tx_m = NULL; 1996 1.28.2.2 snj } 1997 1.28.2.2 snj } 1998 1.28.2.2 snj } 1999 1.28.2.2 snj 2000 1.28.2.2 snj static void 2001 1.28.2.2 snj age_stats_update(struct age_softc *sc) 2002 1.28.2.2 snj { 2003 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 2004 1.28.2.2 snj struct age_stats *stat; 2005 1.28.2.2 snj struct smb *smb; 2006 1.28.2.2 snj 2007 1.28.2.2 snj stat = &sc->age_stat; 2008 1.28.2.2 snj 2009 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 2010 1.28.2.2 snj sc->age_cdata.age_smb_block_map->dm_mapsize, BUS_DMASYNC_POSTREAD); 2011 1.28.2.2 snj 2012 1.28.2.2 snj smb = sc->age_rdata.age_smb_block; 2013 1.28.2.2 snj if (smb->updated == 0) 2014 1.28.2.2 snj return; 2015 1.28.2.2 snj 2016 1.28.2.2 snj /* Rx stats. */ 2017 1.28.2.2 snj stat->rx_frames += smb->rx_frames; 2018 1.28.2.2 snj stat->rx_bcast_frames += smb->rx_bcast_frames; 2019 1.28.2.2 snj stat->rx_mcast_frames += smb->rx_mcast_frames; 2020 1.28.2.2 snj stat->rx_pause_frames += smb->rx_pause_frames; 2021 1.28.2.2 snj stat->rx_control_frames += smb->rx_control_frames; 2022 1.28.2.2 snj stat->rx_crcerrs += smb->rx_crcerrs; 2023 1.28.2.2 snj stat->rx_lenerrs += smb->rx_lenerrs; 2024 1.28.2.2 snj stat->rx_bytes += smb->rx_bytes; 2025 1.28.2.2 snj stat->rx_runts += smb->rx_runts; 2026 1.28.2.2 snj stat->rx_fragments += smb->rx_fragments; 2027 1.28.2.2 snj stat->rx_pkts_64 += smb->rx_pkts_64; 2028 1.28.2.2 snj stat->rx_pkts_65_127 += smb->rx_pkts_65_127; 2029 1.28.2.2 snj stat->rx_pkts_128_255 += smb->rx_pkts_128_255; 2030 1.28.2.2 snj stat->rx_pkts_256_511 += smb->rx_pkts_256_511; 2031 1.28.2.2 snj stat->rx_pkts_512_1023 += smb->rx_pkts_512_1023; 2032 1.28.2.2 snj stat->rx_pkts_1024_1518 += smb->rx_pkts_1024_1518; 2033 1.28.2.2 snj stat->rx_pkts_1519_max += smb->rx_pkts_1519_max; 2034 1.28.2.2 snj stat->rx_pkts_truncated += smb->rx_pkts_truncated; 2035 1.28.2.2 snj stat->rx_fifo_oflows += smb->rx_fifo_oflows; 2036 1.28.2.2 snj stat->rx_desc_oflows += smb->rx_desc_oflows; 2037 1.28.2.2 snj stat->rx_alignerrs += smb->rx_alignerrs; 2038 1.28.2.2 snj stat->rx_bcast_bytes += smb->rx_bcast_bytes; 2039 1.28.2.2 snj stat->rx_mcast_bytes += smb->rx_mcast_bytes; 2040 1.28.2.2 snj stat->rx_pkts_filtered += smb->rx_pkts_filtered; 2041 1.28.2.2 snj 2042 1.28.2.2 snj /* Tx stats. */ 2043 1.28.2.2 snj stat->tx_frames += smb->tx_frames; 2044 1.28.2.2 snj stat->tx_bcast_frames += smb->tx_bcast_frames; 2045 1.28.2.2 snj stat->tx_mcast_frames += smb->tx_mcast_frames; 2046 1.28.2.2 snj stat->tx_pause_frames += smb->tx_pause_frames; 2047 1.28.2.2 snj stat->tx_excess_defer += smb->tx_excess_defer; 2048 1.28.2.2 snj stat->tx_control_frames += smb->tx_control_frames; 2049 1.28.2.2 snj stat->tx_deferred += smb->tx_deferred; 2050 1.28.2.2 snj stat->tx_bytes += smb->tx_bytes; 2051 1.28.2.2 snj stat->tx_pkts_64 += smb->tx_pkts_64; 2052 1.28.2.2 snj stat->tx_pkts_65_127 += smb->tx_pkts_65_127; 2053 1.28.2.2 snj stat->tx_pkts_128_255 += smb->tx_pkts_128_255; 2054 1.28.2.2 snj stat->tx_pkts_256_511 += smb->tx_pkts_256_511; 2055 1.28.2.2 snj stat->tx_pkts_512_1023 += smb->tx_pkts_512_1023; 2056 1.28.2.2 snj stat->tx_pkts_1024_1518 += smb->tx_pkts_1024_1518; 2057 1.28.2.2 snj stat->tx_pkts_1519_max += smb->tx_pkts_1519_max; 2058 1.28.2.2 snj stat->tx_single_colls += smb->tx_single_colls; 2059 1.28.2.2 snj stat->tx_multi_colls += smb->tx_multi_colls; 2060 1.28.2.2 snj stat->tx_late_colls += smb->tx_late_colls; 2061 1.28.2.2 snj stat->tx_excess_colls += smb->tx_excess_colls; 2062 1.28.2.2 snj stat->tx_underrun += smb->tx_underrun; 2063 1.28.2.2 snj stat->tx_desc_underrun += smb->tx_desc_underrun; 2064 1.28.2.2 snj stat->tx_lenerrs += smb->tx_lenerrs; 2065 1.28.2.2 snj stat->tx_pkts_truncated += smb->tx_pkts_truncated; 2066 1.28.2.2 snj stat->tx_bcast_bytes += smb->tx_bcast_bytes; 2067 1.28.2.2 snj stat->tx_mcast_bytes += smb->tx_mcast_bytes; 2068 1.28.2.2 snj 2069 1.28.2.2 snj /* Update counters in ifnet. */ 2070 1.28.2.2 snj ifp->if_opackets += smb->tx_frames; 2071 1.28.2.2 snj 2072 1.28.2.2 snj ifp->if_collisions += smb->tx_single_colls + 2073 1.28.2.2 snj smb->tx_multi_colls + smb->tx_late_colls + 2074 1.28.2.2 snj smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT; 2075 1.28.2.2 snj 2076 1.28.2.2 snj ifp->if_oerrors += smb->tx_excess_colls + 2077 1.28.2.2 snj smb->tx_late_colls + smb->tx_underrun + 2078 1.28.2.2 snj smb->tx_pkts_truncated; 2079 1.28.2.2 snj 2080 1.28.2.2 snj ifp->if_ipackets += smb->rx_frames; 2081 1.28.2.2 snj 2082 1.28.2.2 snj ifp->if_ierrors += smb->rx_crcerrs + smb->rx_lenerrs + 2083 1.28.2.2 snj smb->rx_runts + smb->rx_pkts_truncated + 2084 1.28.2.2 snj smb->rx_fifo_oflows + smb->rx_desc_oflows + 2085 1.28.2.2 snj smb->rx_alignerrs; 2086 1.28.2.2 snj 2087 1.28.2.2 snj /* Update done, clear. */ 2088 1.28.2.2 snj smb->updated = 0; 2089 1.28.2.2 snj 2090 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 2091 1.28.2.2 snj sc->age_cdata.age_smb_block_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2092 1.28.2.2 snj } 2093 1.28.2.2 snj 2094 1.28.2.2 snj static void 2095 1.28.2.2 snj age_stop_txmac(struct age_softc *sc) 2096 1.28.2.2 snj { 2097 1.28.2.2 snj uint32_t reg; 2098 1.28.2.2 snj int i; 2099 1.28.2.2 snj 2100 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 2101 1.28.2.2 snj if ((reg & MAC_CFG_TX_ENB) != 0) { 2102 1.28.2.2 snj reg &= ~MAC_CFG_TX_ENB; 2103 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2104 1.28.2.2 snj } 2105 1.28.2.2 snj /* Stop Tx DMA engine. */ 2106 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_DMA_CFG); 2107 1.28.2.2 snj if ((reg & DMA_CFG_RD_ENB) != 0) { 2108 1.28.2.2 snj reg &= ~DMA_CFG_RD_ENB; 2109 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2110 1.28.2.2 snj } 2111 1.28.2.2 snj for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2112 1.28.2.2 snj if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2113 1.28.2.2 snj (IDLE_STATUS_TXMAC | IDLE_STATUS_DMARD)) == 0) 2114 1.28.2.2 snj break; 2115 1.28.2.2 snj DELAY(10); 2116 1.28.2.2 snj } 2117 1.28.2.2 snj if (i == 0) 2118 1.28.2.2 snj printf("%s: stopping TxMAC timeout!\n", device_xname(sc->sc_dev)); 2119 1.28.2.2 snj } 2120 1.28.2.2 snj 2121 1.28.2.2 snj static void 2122 1.28.2.2 snj age_stop_rxmac(struct age_softc *sc) 2123 1.28.2.2 snj { 2124 1.28.2.2 snj uint32_t reg; 2125 1.28.2.2 snj int i; 2126 1.28.2.2 snj 2127 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 2128 1.28.2.2 snj if ((reg & MAC_CFG_RX_ENB) != 0) { 2129 1.28.2.2 snj reg &= ~MAC_CFG_RX_ENB; 2130 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2131 1.28.2.2 snj } 2132 1.28.2.2 snj /* Stop Rx DMA engine. */ 2133 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_DMA_CFG); 2134 1.28.2.2 snj if ((reg & DMA_CFG_WR_ENB) != 0) { 2135 1.28.2.2 snj reg &= ~DMA_CFG_WR_ENB; 2136 1.28.2.2 snj CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2137 1.28.2.2 snj } 2138 1.28.2.2 snj for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2139 1.28.2.2 snj if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2140 1.28.2.2 snj (IDLE_STATUS_RXMAC | IDLE_STATUS_DMAWR)) == 0) 2141 1.28.2.2 snj break; 2142 1.28.2.2 snj DELAY(10); 2143 1.28.2.2 snj } 2144 1.28.2.2 snj if (i == 0) 2145 1.28.2.2 snj printf("%s: stopping RxMAC timeout!\n", device_xname(sc->sc_dev)); 2146 1.28.2.2 snj } 2147 1.28.2.2 snj 2148 1.28.2.2 snj static void 2149 1.28.2.2 snj age_init_tx_ring(struct age_softc *sc) 2150 1.28.2.2 snj { 2151 1.28.2.2 snj struct age_ring_data *rd; 2152 1.28.2.2 snj struct age_txdesc *txd; 2153 1.28.2.2 snj int i; 2154 1.28.2.2 snj 2155 1.28.2.2 snj sc->age_cdata.age_tx_prod = 0; 2156 1.28.2.2 snj sc->age_cdata.age_tx_cons = 0; 2157 1.28.2.2 snj sc->age_cdata.age_tx_cnt = 0; 2158 1.28.2.2 snj 2159 1.28.2.2 snj rd = &sc->age_rdata; 2160 1.28.2.2 snj memset(rd->age_tx_ring, 0, AGE_TX_RING_SZ); 2161 1.28.2.2 snj for (i = 0; i < AGE_TX_RING_CNT; i++) { 2162 1.28.2.2 snj txd = &sc->age_cdata.age_txdesc[i]; 2163 1.28.2.2 snj txd->tx_desc = &rd->age_tx_ring[i]; 2164 1.28.2.2 snj txd->tx_m = NULL; 2165 1.28.2.2 snj } 2166 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 0, 2167 1.28.2.2 snj sc->age_cdata.age_tx_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2168 1.28.2.2 snj } 2169 1.28.2.2 snj 2170 1.28.2.2 snj static int 2171 1.28.2.2 snj age_init_rx_ring(struct age_softc *sc) 2172 1.28.2.2 snj { 2173 1.28.2.2 snj struct age_ring_data *rd; 2174 1.28.2.2 snj struct age_rxdesc *rxd; 2175 1.28.2.2 snj int i; 2176 1.28.2.2 snj 2177 1.28.2.2 snj sc->age_cdata.age_rx_cons = AGE_RX_RING_CNT - 1; 2178 1.28.2.2 snj rd = &sc->age_rdata; 2179 1.28.2.2 snj memset(rd->age_rx_ring, 0, AGE_RX_RING_SZ); 2180 1.28.2.2 snj for (i = 0; i < AGE_RX_RING_CNT; i++) { 2181 1.28.2.2 snj rxd = &sc->age_cdata.age_rxdesc[i]; 2182 1.28.2.2 snj rxd->rx_m = NULL; 2183 1.28.2.2 snj rxd->rx_desc = &rd->age_rx_ring[i]; 2184 1.28.2.2 snj if (age_newbuf(sc, rxd, 1) != 0) 2185 1.28.2.2 snj return ENOBUFS; 2186 1.28.2.2 snj } 2187 1.28.2.2 snj 2188 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rx_ring_map, 0, 2189 1.28.2.2 snj sc->age_cdata.age_rx_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2190 1.28.2.2 snj 2191 1.28.2.2 snj return 0; 2192 1.28.2.2 snj } 2193 1.28.2.2 snj 2194 1.28.2.2 snj static void 2195 1.28.2.2 snj age_init_rr_ring(struct age_softc *sc) 2196 1.28.2.2 snj { 2197 1.28.2.2 snj struct age_ring_data *rd; 2198 1.28.2.2 snj 2199 1.28.2.2 snj sc->age_cdata.age_rr_cons = 0; 2200 1.28.2.2 snj AGE_RXCHAIN_RESET(sc); 2201 1.28.2.2 snj 2202 1.28.2.2 snj rd = &sc->age_rdata; 2203 1.28.2.2 snj memset(rd->age_rr_ring, 0, AGE_RR_RING_SZ); 2204 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 2205 1.28.2.2 snj sc->age_cdata.age_rr_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2206 1.28.2.2 snj } 2207 1.28.2.2 snj 2208 1.28.2.2 snj static void 2209 1.28.2.2 snj age_init_cmb_block(struct age_softc *sc) 2210 1.28.2.2 snj { 2211 1.28.2.2 snj struct age_ring_data *rd; 2212 1.28.2.2 snj 2213 1.28.2.2 snj rd = &sc->age_rdata; 2214 1.28.2.2 snj memset(rd->age_cmb_block, 0, AGE_CMB_BLOCK_SZ); 2215 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 2216 1.28.2.2 snj sc->age_cdata.age_cmb_block_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2217 1.28.2.2 snj } 2218 1.28.2.2 snj 2219 1.28.2.2 snj static void 2220 1.28.2.2 snj age_init_smb_block(struct age_softc *sc) 2221 1.28.2.2 snj { 2222 1.28.2.2 snj struct age_ring_data *rd; 2223 1.28.2.2 snj 2224 1.28.2.2 snj rd = &sc->age_rdata; 2225 1.28.2.2 snj memset(rd->age_smb_block, 0, AGE_SMB_BLOCK_SZ); 2226 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 2227 1.28.2.2 snj sc->age_cdata.age_smb_block_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2228 1.28.2.2 snj } 2229 1.28.2.2 snj 2230 1.28.2.2 snj static int 2231 1.28.2.2 snj age_newbuf(struct age_softc *sc, struct age_rxdesc *rxd, int init) 2232 1.28.2.2 snj { 2233 1.28.2.2 snj struct rx_desc *desc; 2234 1.28.2.2 snj struct mbuf *m; 2235 1.28.2.2 snj bus_dmamap_t map; 2236 1.28.2.2 snj int error; 2237 1.28.2.2 snj 2238 1.28.2.2 snj MGETHDR(m, init ? M_WAITOK : M_DONTWAIT, MT_DATA); 2239 1.28.2.2 snj if (m == NULL) 2240 1.28.2.2 snj return ENOBUFS; 2241 1.28.2.2 snj MCLGET(m, init ? M_WAITOK : M_DONTWAIT); 2242 1.28.2.2 snj if (!(m->m_flags & M_EXT)) { 2243 1.28.2.2 snj m_freem(m); 2244 1.28.2.2 snj return ENOBUFS; 2245 1.28.2.2 snj } 2246 1.28.2.2 snj 2247 1.28.2.2 snj m->m_len = m->m_pkthdr.len = MCLBYTES; 2248 1.28.2.2 snj m_adj(m, ETHER_ALIGN); 2249 1.28.2.2 snj 2250 1.28.2.2 snj error = bus_dmamap_load_mbuf(sc->sc_dmat, 2251 1.28.2.2 snj sc->age_cdata.age_rx_sparemap, m, BUS_DMA_NOWAIT); 2252 1.28.2.2 snj 2253 1.28.2.2 snj if (error != 0) { 2254 1.28.2.2 snj if (!error) { 2255 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, 2256 1.28.2.2 snj sc->age_cdata.age_rx_sparemap); 2257 1.28.2.2 snj error = EFBIG; 2258 1.28.2.2 snj printf("%s: too many segments?!\n", 2259 1.28.2.2 snj device_xname(sc->sc_dev)); 2260 1.28.2.2 snj } 2261 1.28.2.2 snj m_freem(m); 2262 1.28.2.2 snj 2263 1.28.2.2 snj if (init) 2264 1.28.2.2 snj printf("%s: can't load RX mbuf\n", device_xname(sc->sc_dev)); 2265 1.28.2.2 snj return error; 2266 1.28.2.2 snj } 2267 1.28.2.2 snj 2268 1.28.2.2 snj if (rxd->rx_m != NULL) { 2269 1.28.2.2 snj bus_dmamap_sync(sc->sc_dmat, rxd->rx_dmamap, 0, 2270 1.28.2.2 snj rxd->rx_dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD); 2271 1.28.2.2 snj bus_dmamap_unload(sc->sc_dmat, rxd->rx_dmamap); 2272 1.28.2.2 snj } 2273 1.28.2.2 snj map = rxd->rx_dmamap; 2274 1.28.2.2 snj rxd->rx_dmamap = sc->age_cdata.age_rx_sparemap; 2275 1.28.2.2 snj sc->age_cdata.age_rx_sparemap = map; 2276 1.28.2.2 snj rxd->rx_m = m; 2277 1.28.2.2 snj 2278 1.28.2.2 snj desc = rxd->rx_desc; 2279 1.28.2.2 snj desc->addr = htole64(rxd->rx_dmamap->dm_segs[0].ds_addr); 2280 1.28.2.2 snj desc->len = 2281 1.28.2.2 snj htole32((rxd->rx_dmamap->dm_segs[0].ds_len & AGE_RD_LEN_MASK) << 2282 1.28.2.2 snj AGE_RD_LEN_SHIFT); 2283 1.28.2.2 snj 2284 1.28.2.2 snj return 0; 2285 1.28.2.2 snj } 2286 1.28.2.2 snj 2287 1.28.2.2 snj static void 2288 1.28.2.2 snj age_rxvlan(struct age_softc *sc) 2289 1.28.2.2 snj { 2290 1.28.2.2 snj uint32_t reg; 2291 1.28.2.2 snj 2292 1.28.2.2 snj reg = CSR_READ_4(sc, AGE_MAC_CFG); 2293 1.28.2.2 snj reg &= ~MAC_CFG_VLAN_TAG_STRIP; 2294 1.28.2.2 snj if (sc->sc_ec.ec_capabilities & ETHERCAP_VLAN_HWTAGGING) 2295 1.28.2.2 snj reg |= MAC_CFG_VLAN_TAG_STRIP; 2296 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2297 1.28.2.2 snj } 2298 1.28.2.2 snj 2299 1.28.2.2 snj static void 2300 1.28.2.2 snj age_rxfilter(struct age_softc *sc) 2301 1.28.2.2 snj { 2302 1.28.2.2 snj struct ethercom *ec = &sc->sc_ec; 2303 1.28.2.2 snj struct ifnet *ifp = &sc->sc_ec.ec_if; 2304 1.28.2.2 snj struct ether_multi *enm; 2305 1.28.2.2 snj struct ether_multistep step; 2306 1.28.2.2 snj uint32_t crc; 2307 1.28.2.2 snj uint32_t mchash[2]; 2308 1.28.2.2 snj uint32_t rxcfg; 2309 1.28.2.2 snj 2310 1.28.2.2 snj rxcfg = CSR_READ_4(sc, AGE_MAC_CFG); 2311 1.28.2.2 snj rxcfg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST | MAC_CFG_PROMISC); 2312 1.28.2.2 snj ifp->if_flags &= ~IFF_ALLMULTI; 2313 1.28.2.2 snj 2314 1.28.2.2 snj /* 2315 1.28.2.2 snj * Always accept broadcast frames. 2316 1.28.2.2 snj */ 2317 1.28.2.2 snj rxcfg |= MAC_CFG_BCAST; 2318 1.28.2.2 snj 2319 1.28.2.2 snj if (ifp->if_flags & IFF_PROMISC || ec->ec_multicnt > 0) { 2320 1.28.2.2 snj ifp->if_flags |= IFF_ALLMULTI; 2321 1.28.2.2 snj if (ifp->if_flags & IFF_PROMISC) 2322 1.28.2.2 snj rxcfg |= MAC_CFG_PROMISC; 2323 1.28.2.2 snj else 2324 1.28.2.2 snj rxcfg |= MAC_CFG_ALLMULTI; 2325 1.28.2.2 snj mchash[0] = mchash[1] = 0xFFFFFFFF; 2326 1.28.2.2 snj } else { 2327 1.28.2.2 snj /* Program new filter. */ 2328 1.28.2.2 snj memset(mchash, 0, sizeof(mchash)); 2329 1.28.2.2 snj 2330 1.28.2.2 snj ETHER_FIRST_MULTI(step, ec, enm); 2331 1.28.2.2 snj while (enm != NULL) { 2332 1.28.2.2 snj crc = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN); 2333 1.28.2.2 snj mchash[crc >> 31] |= 1 << ((crc >> 26) & 0x1f); 2334 1.28.2.2 snj ETHER_NEXT_MULTI(step, enm); 2335 1.28.2.2 snj } 2336 1.28.2.2 snj } 2337 1.28.2.2 snj 2338 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAR0, mchash[0]); 2339 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAR1, mchash[1]); 2340 1.28.2.2 snj CSR_WRITE_4(sc, AGE_MAC_CFG, rxcfg); 2341 1.28.2.2 snj } 2342
Indexes created Fri Oct 03 02:09:57 GMT 2025