/* $OpenBSD: ti.c,v 1.4 2011/06/21 16:52:45 tedu Exp $ */ /* * Copyright (c) 1997, 1998, 1999 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/pci/if_ti.c,v 1.25 2000/01/18 00:26:29 wpaul Exp $ */ /* * Alteon Networks Tigon PCI gigabit ethernet driver for OpenBSD. * * Written by Bill Paul * Electrical Engineering Department * Columbia University, New York City */ /* * The Alteon Networks Tigon chip contains an embedded R4000 CPU, * gigabit MAC, dual DMA channels and a PCI interface unit. NICs * using the Tigon may have anywhere from 512K to 2MB of SRAM. The * Tigon supports hardware IP, TCP and UCP checksumming, multicast * filtering and jumbo (9014 byte) frames. The hardware is largely * controlled by firmware, which must be loaded into the NIC during * initialization. * * The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware * revision, which supports new features such as extended commands, * extended jumbo receive ring desciptors and a mini receive ring. * * Alteon Networks is to be commended for releasing such a vast amount * of development material for the Tigon NIC without requiring an NDA * (although they really should have done it a long time ago). With * any luck, the other vendors will finally wise up and follow Alteon's * stellar example. * * The following people deserve special thanks: * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board * for testing * - Raymond Lee of Netgear, for providing a pair of Netgear * GA620 Tigon 2 boards for testing * - Ulf Zimmermann, for bringing the GA260 to my attention and * convincing me to write this driver. * - Andrew Gallatin for providing FreeBSD/Alpha support. */ #include "bpfilter.h" #include "vlan.h" #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #include #include #include #endif #include #if NBPFILTER > 0 #include #endif #if NVLAN > 0 #include #include #endif #include #include #include #include struct cfdriver ti_cd = { NULL, "ti", DV_IFNET }; void ti_txeof_tigon1(struct ti_softc *); void ti_txeof_tigon2(struct ti_softc *); void ti_rxeof(struct ti_softc *); void ti_stats_update(struct ti_softc *); int ti_encap_tigon1(struct ti_softc *, struct mbuf *, u_int32_t *); int ti_encap_tigon2(struct ti_softc *, struct mbuf *, u_int32_t *); int ti_intr(void *); void ti_start(struct ifnet *); int ti_ioctl(struct ifnet *, u_long, caddr_t); void ti_init(void *); void ti_init2(struct ti_softc *); void ti_stop(struct ti_softc *); void ti_watchdog(struct ifnet *); int ti_ifmedia_upd(struct ifnet *); void ti_ifmedia_sts(struct ifnet *, struct ifmediareq *); u_int32_t ti_eeprom_putbyte(struct ti_softc *, int); u_int8_t ti_eeprom_getbyte(struct ti_softc *, int, u_int8_t *); int ti_read_eeprom(struct ti_softc *, caddr_t, int, int); void ti_add_mcast(struct ti_softc *, struct ether_addr *); void ti_del_mcast(struct ti_softc *, struct ether_addr *); void ti_iff(struct ti_softc *); void ti_mem_read(struct ti_softc *, u_int32_t, u_int32_t, void *); void ti_mem_write(struct ti_softc *, u_int32_t, u_int32_t, const void*); void ti_mem_set(struct ti_softc *, u_int32_t, u_int32_t); void ti_loadfw(struct ti_softc *); void ti_cmd(struct ti_softc *, struct ti_cmd_desc *); void ti_cmd_ext(struct ti_softc *, struct ti_cmd_desc *, caddr_t, int); void ti_handle_events(struct ti_softc *); int ti_alloc_jumbo_mem(struct ti_softc *); void *ti_jalloc(struct ti_softc *); void ti_jfree(caddr_t, u_int, void *); int ti_newbuf_std(struct ti_softc *, int, struct mbuf *, bus_dmamap_t); int ti_newbuf_mini(struct ti_softc *, int, struct mbuf *, bus_dmamap_t); int ti_newbuf_jumbo(struct ti_softc *, int, struct mbuf *); int ti_init_rx_ring_std(struct ti_softc *); void ti_free_rx_ring_std(struct ti_softc *); int ti_init_rx_ring_jumbo(struct ti_softc *); void ti_free_rx_ring_jumbo(struct ti_softc *); int ti_init_rx_ring_mini(struct ti_softc *); void ti_free_rx_ring_mini(struct ti_softc *); void ti_free_tx_ring(struct ti_softc *); int ti_init_tx_ring(struct ti_softc *); int ti_64bitslot_war(struct ti_softc *); int ti_chipinit(struct ti_softc *); void ti_chipinit_pci(struct ti_softc *); void ti_chipinit_sbus(struct ti_softc *); int ti_gibinit(struct ti_softc *); /* * Send an instruction or address to the EEPROM, check for ACK. */ u_int32_t ti_eeprom_putbyte(struct ti_softc *sc, int byte) { int i, ack = 0; /* * Make sure we're in TX mode. */ TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* * Feed in each bit and strobe the clock. */ for (i = 0x80; i; i >>= 1) { if (byte & i) TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); else TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); DELAY(1); TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); DELAY(1); TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); } /* * Turn off TX mode. */ TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* * Check for ack. */ TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN; TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); return (ack); } /* * Read a byte of data stored in the EEPROM at address 'addr.' * We have to send two address bytes since the EEPROM can hold * more than 256 bytes of data. */ u_int8_t ti_eeprom_getbyte(struct ti_softc *sc, int addr, u_int8_t *dest) { int i; u_int8_t byte = 0; EEPROM_START; /* * Send write control code to EEPROM. */ if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) { printf("%s: failed to send write command, status: %x\n", sc->sc_dv.dv_xname, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); return (1); } /* * Send first byte of address of byte we want to read. */ if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) { printf("%s: failed to send address, status: %x\n", sc->sc_dv.dv_xname, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); return (1); } /* * Send second byte address of byte we want to read. */ if (ti_eeprom_putbyte(sc, addr & 0xFF)) { printf("%s: failed to send address, status: %x\n", sc->sc_dv.dv_xname, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); return (1); } EEPROM_STOP; EEPROM_START; /* * Send read control code to EEPROM. */ if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) { printf("%s: failed to send read command, status: %x\n", sc->sc_dv.dv_xname, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); return (1); } /* * Start reading bits from EEPROM. */ TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); for (i = 0x80; i; i >>= 1) { TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); DELAY(1); if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN) byte |= i; TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); DELAY(1); } EEPROM_STOP; /* * No ACK generated for read, so just return byte. */ *dest = byte; return (0); } /* * Read a sequence of bytes from the EEPROM. */ int ti_read_eeprom(struct ti_softc *sc, caddr_t dest, int off, int cnt) { int err = 0, i; u_int8_t byte = 0; for (i = 0; i < cnt; i++) { err = ti_eeprom_getbyte(sc, off + i, &byte); if (err) break; *(dest + i) = byte; } return (err ? 1 : 0); } /* * NIC memory read function. * Can be used to copy data from NIC local memory. */ void ti_mem_read(struct ti_softc *sc, u_int32_t addr, u_int32_t len, void *buf) { int segptr, segsize, cnt; caddr_t ptr; segptr = addr; cnt = len; ptr = buf; while(cnt) { if (cnt < TI_WINLEN) segsize = cnt; else segsize = TI_WINLEN - (segptr % TI_WINLEN); CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1))); bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr, segsize / 4); ptr += segsize; segptr += segsize; cnt -= segsize; } } /* * NIC memory write function. * Can be used to copy data into NIC local memory. */ void ti_mem_write(struct ti_softc *sc, u_int32_t addr, u_int32_t len, const void *buf) { int segptr, segsize, cnt; const char *ptr; segptr = addr; cnt = len; ptr = buf; while(cnt) { if (cnt < TI_WINLEN) segsize = cnt; else segsize = TI_WINLEN - (segptr % TI_WINLEN); CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1))); bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr, segsize / 4); ptr += segsize; segptr += segsize; cnt -= segsize; } } /* * NIC memory write function. * Can be used to clear a section of NIC local memory. */ void ti_mem_set(struct ti_softc *sc, u_int32_t addr, u_int32_t len) { int segptr, segsize, cnt; segptr = addr; cnt = len; while(cnt) { if (cnt < TI_WINLEN) segsize = cnt; else segsize = TI_WINLEN - (segptr % TI_WINLEN); CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1))); bus_space_set_region_4(sc->ti_btag, sc->ti_bhandle, TI_WINDOW + (segptr & (TI_WINLEN - 1)), 0, segsize / 4); segptr += segsize; cnt -= segsize; } } /* * Load firmware image into the NIC. Check that the firmware revision * is acceptable and see if we want the firmware for the Tigon 1 or * Tigon 2. */ void ti_loadfw(struct ti_softc *sc) { struct tigon_firmware *tf; u_char *buf = NULL; u_int32_t *b; size_t buflen, i, cnt; char *name; int error; switch(sc->ti_hwrev) { case TI_HWREV_TIGON: name = "tigon1"; break; case TI_HWREV_TIGON_II: name = "tigon2"; break; default: printf("%s: can't load firmware: unknown hardware rev\n", sc->sc_dv.dv_xname); return; } error = loadfirmware(name, &buf, &buflen); if (error) return; /* convert firmware to host byte order */ b = (u_int32_t *)buf; cnt = buflen / sizeof(u_int32_t); for (i = 0; i < cnt; i++) b[i] = letoh32(b[i]); tf = (struct tigon_firmware *)buf; if (tf->FwReleaseMajor != TI_FIRMWARE_MAJOR || tf->FwReleaseMinor != TI_FIRMWARE_MINOR || tf->FwReleaseFix != TI_FIRMWARE_FIX) { printf("%s: firmware revision mismatch; want " "%d.%d.%d, got %d.%d.%d\n", sc->sc_dv.dv_xname, TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR, TI_FIRMWARE_FIX, tf->FwReleaseMajor, tf->FwReleaseMinor, tf->FwReleaseFix); free(buf, M_DEVBUF); return; } ti_mem_write(sc, tf->FwTextAddr, tf->FwTextLen, (caddr_t)&tf->data[tf->FwTextOffset]); ti_mem_write(sc, tf->FwRodataAddr, tf->FwRodataLen, (caddr_t)&tf->data[tf->FwRodataOffset]); ti_mem_write(sc, tf->FwDataAddr, tf->FwDataLen, (caddr_t)&tf->data[tf->FwDataOffset]); ti_mem_set(sc, tf->FwBssAddr, tf->FwBssLen); ti_mem_set(sc, tf->FwSbssAddr, tf->FwSbssLen); CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tf->FwStartAddr); free(buf, M_DEVBUF); } /* * Send the NIC a command via the command ring. */ void ti_cmd(struct ti_softc *sc, struct ti_cmd_desc *cmd) { u_int32_t index; index = sc->ti_cmd_saved_prodidx; CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd)); TI_INC(index, TI_CMD_RING_CNT); CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); sc->ti_cmd_saved_prodidx = index; } /* * Send the NIC an extended command. The 'len' parameter specifies the * number of command slots to include after the initial command. */ void ti_cmd_ext(struct ti_softc *sc, struct ti_cmd_desc *cmd, caddr_t arg, int len) { u_int32_t index; int i; index = sc->ti_cmd_saved_prodidx; CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd)); TI_INC(index, TI_CMD_RING_CNT); for (i = 0; i < len; i++) { CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(&arg[i * 4])); TI_INC(index, TI_CMD_RING_CNT); } CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); sc->ti_cmd_saved_prodidx = index; } /* * Handle events that have triggered interrupts. */ void ti_handle_events(struct ti_softc *sc) { struct ti_event_desc *e; struct ifnet *ifp = &sc->arpcom.ac_if; if (sc->ti_rdata->ti_event_ring == NULL) return; while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) { e = &sc->ti_rdata->ti_event_ring[sc->ti_ev_saved_considx]; switch (TI_EVENT_EVENT(e)) { case TI_EV_LINKSTAT_CHANGED: sc->ti_linkstat = TI_EVENT_CODE(e); switch (sc->ti_linkstat) { case TI_EV_CODE_LINK_UP: case TI_EV_CODE_GIG_LINK_UP: { struct ifmediareq ifmr; bzero(&ifmr, sizeof(ifmr)); ti_ifmedia_sts(ifp, &ifmr); if (ifmr.ifm_active & IFM_FDX) { ifp->if_link_state = LINK_STATE_FULL_DUPLEX; } else { ifp->if_link_state = LINK_STATE_HALF_DUPLEX; } if_link_state_change(ifp); ifp->if_baudrate = ifmedia_baudrate(ifmr.ifm_active); break; } case TI_EV_CODE_LINK_DOWN: ifp->if_link_state = LINK_STATE_DOWN; if_link_state_change(ifp); ifp->if_baudrate = 0; break; default: printf("%s: unknown link state code %d\n", sc->sc_dv.dv_xname, sc->ti_linkstat); } break; case TI_EV_ERROR: if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_INVAL_CMD) printf("%s: invalid command\n", sc->sc_dv.dv_xname); else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_UNIMP_CMD) printf("%s: unknown command\n", sc->sc_dv.dv_xname); else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_BADCFG) printf("%s: bad config data\n", sc->sc_dv.dv_xname); break; case TI_EV_FIRMWARE_UP: ti_init2(sc); break; case TI_EV_STATS_UPDATED: ti_stats_update(sc); break; case TI_EV_RESET_JUMBO_RING: case TI_EV_MCAST_UPDATED: /* Who cares. */ break; default: printf("%s: unknown event: %d\n", sc->sc_dv.dv_xname, TI_EVENT_EVENT(e)); break; } /* Advance the consumer index. */ TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT); CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx); } } /* * Memory management for the jumbo receive ring is a pain in the * butt. We need to allocate at least 9018 bytes of space per frame, * _and_ it has to be contiguous (unless you use the extended * jumbo descriptor format). Using malloc() all the time won't * work: malloc() allocates memory in powers of two, which means we * would end up wasting a considerable amount of space by allocating * 9K chunks. We don't have a jumbo mbuf cluster pool. Thus, we have * to do our own memory management. * * The driver needs to allocate a contiguous chunk of memory at boot * time. We then chop this up ourselves into 9K pieces and use them * as external mbuf storage. * * One issue here is how much memory to allocate. The jumbo ring has * 256 slots in it, but at 9K per slot than can consume over 2MB of * RAM. This is a bit much, especially considering we also need * RAM for the standard ring and mini ring (on the Tigon 2). To * save space, we only actually allocate enough memory for 64 slots * by default, which works out to between 500 and 600K. This can * be tuned by changing a #define in if_tireg.h. */ int ti_alloc_jumbo_mem(struct ti_softc *sc) { caddr_t ptr, kva; bus_dma_segment_t seg; int i, rseg, state, error; struct ti_jpool_entry *entry; state = error = 0; /* Grab a big chunk o' storage. */ if (bus_dmamem_alloc(sc->sc_dmatag, TI_JMEM, PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { printf("%s: can't alloc rx buffers\n", sc->sc_dv.dv_xname); return (ENOBUFS); } state = 1; if (bus_dmamem_map(sc->sc_dmatag, &seg, rseg, TI_JMEM, &kva, BUS_DMA_NOWAIT)) { printf("%s: can't map dma buffers (%d bytes)\n", sc->sc_dv.dv_xname, TI_JMEM); error = ENOBUFS; goto out; } state = 2; if (bus_dmamap_create(sc->sc_dmatag, TI_JMEM, 1, TI_JMEM, 0, BUS_DMA_NOWAIT, &sc->ti_cdata.ti_rx_jumbo_map)) { printf("%s: can't create dma map\n", sc->sc_dv.dv_xname); error = ENOBUFS; goto out; } state = 3; if (bus_dmamap_load(sc->sc_dmatag, sc->ti_cdata.ti_rx_jumbo_map, kva, TI_JMEM, NULL, BUS_DMA_NOWAIT)) { printf("%s: can't load dma map\n", sc->sc_dv.dv_xname); error = ENOBUFS; goto out; } state = 4; sc->ti_cdata.ti_jumbo_buf = (caddr_t)kva; SLIST_INIT(&sc->ti_jfree_listhead); SLIST_INIT(&sc->ti_jinuse_listhead); /* * Now divide it up into 9K pieces and save the addresses * in an array. */ ptr = sc->ti_cdata.ti_jumbo_buf; for (i = 0; i < TI_JSLOTS; i++) { sc->ti_cdata.ti_jslots[i].ti_buf = ptr; sc->ti_cdata.ti_jslots[i].ti_inuse = 0; ptr += TI_JLEN; entry = malloc(sizeof(struct ti_jpool_entry), M_DEVBUF, M_NOWAIT); if (entry == NULL) { sc->ti_cdata.ti_jumbo_buf = NULL; printf("%s: no memory for jumbo buffer queue\n", sc->sc_dv.dv_xname); error = ENOBUFS; goto out; } entry->slot = i; SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries); } out: if (error != 0) { switch (state) { case 4: bus_dmamap_unload(sc->sc_dmatag, sc->ti_cdata.ti_rx_jumbo_map); case 3: bus_dmamap_destroy(sc->sc_dmatag, sc->ti_cdata.ti_rx_jumbo_map); case 2: bus_dmamem_unmap(sc->sc_dmatag, kva, TI_JMEM); case 1: bus_dmamem_free(sc->sc_dmatag, &seg, rseg); break; default: break; } } return (error); } /* * Allocate a jumbo buffer. */ void * ti_jalloc(struct ti_softc *sc) { struct ti_jpool_entry *entry; entry = SLIST_FIRST(&sc->ti_jfree_listhead); if (entry == NULL) return (NULL); SLIST_REMOVE_HEAD(&sc->ti_jfree_listhead, jpool_entries); SLIST_INSERT_HEAD(&sc->ti_jinuse_listhead, entry, jpool_entries); sc->ti_cdata.ti_jslots[entry->slot].ti_inuse = 1; return (sc->ti_cdata.ti_jslots[entry->slot].ti_buf); } /* * Release a jumbo buffer. */ void ti_jfree(caddr_t buf, u_int size, void *arg) { struct ti_softc *sc; int i; struct ti_jpool_entry *entry; /* Extract the softc struct pointer. */ sc = (struct ti_softc *)arg; if (sc == NULL) panic("ti_jfree: can't find softc pointer!"); /* calculate the slot this buffer belongs to */ i = ((vaddr_t)buf - (vaddr_t)sc->ti_cdata.ti_jumbo_buf) / TI_JLEN; if ((i < 0) || (i >= TI_JSLOTS)) panic("ti_jfree: asked to free buffer that we don't manage!"); else if (sc->ti_cdata.ti_jslots[i].ti_inuse == 0) panic("ti_jfree: buffer already free!"); sc->ti_cdata.ti_jslots[i].ti_inuse--; if(sc->ti_cdata.ti_jslots[i].ti_inuse == 0) { entry = SLIST_FIRST(&sc->ti_jinuse_listhead); if (entry == NULL) panic("ti_jfree: buffer not in use!"); entry->slot = i; SLIST_REMOVE_HEAD(&sc->ti_jinuse_listhead, jpool_entries); SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries); } } /* * Intialize a standard receive ring descriptor. */ int ti_newbuf_std(struct ti_softc *sc, int i, struct mbuf *m, bus_dmamap_t dmamap) { struct mbuf *m_new = NULL; struct ti_rx_desc *r; if (dmamap == NULL) { /* if (m) panic() */ if (bus_dmamap_create(sc->sc_dmatag, MCLBYTES, 1, MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap)) { printf("%s: can't create recv map\n", sc->sc_dv.dv_xname); return (ENOMEM); } } else if (m == NULL) bus_dmamap_unload(sc->sc_dmatag, dmamap); sc->ti_cdata.ti_rx_std_map[i] = dmamap; if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) return (ENOBUFS); MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { m_freem(m_new); return (ENOBUFS); } m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_adj(m_new, ETHER_ALIGN); if (bus_dmamap_load_mbuf(sc->sc_dmatag, dmamap, m_new, BUS_DMA_NOWAIT)) return (ENOBUFS); } else { /* * We're re-using a previously allocated mbuf; * be sure to re-init pointers and lengths to * default values. */ m_new = m; m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_new->m_data = m_new->m_ext.ext_buf; m_adj(m_new, ETHER_ALIGN); } sc->ti_cdata.ti_rx_std_chain[i] = m_new; r = &sc->ti_rdata->ti_rx_std_ring[i]; TI_HOSTADDR(r->ti_addr) = dmamap->dm_segs[0].ds_addr; r->ti_type = TI_BDTYPE_RECV_BD; r->ti_flags = TI_BDFLAG_IP_CKSUM; r->ti_len = dmamap->dm_segs[0].ds_len; r->ti_idx = i; if ((dmamap->dm_segs[0].ds_addr & ~(MCLBYTES - 1)) != ((dmamap->dm_segs[0].ds_addr + dmamap->dm_segs[0].ds_len - 1) & ~(MCLBYTES - 1))) panic("%s: overwritten!!!", sc->sc_dv.dv_xname); return (0); } /* * Intialize a mini receive ring descriptor. This only applies to * the Tigon 2. */ int ti_newbuf_mini(struct ti_softc *sc, int i, struct mbuf *m, bus_dmamap_t dmamap) { struct mbuf *m_new = NULL; struct ti_rx_desc *r; if (dmamap == NULL) { /* if (m) panic() */ if (bus_dmamap_create(sc->sc_dmatag, MHLEN, 1, MHLEN, 0, BUS_DMA_NOWAIT, &dmamap)) { printf("%s: can't create recv map\n", sc->sc_dv.dv_xname); return (ENOMEM); } } else if (m == NULL) bus_dmamap_unload(sc->sc_dmatag, dmamap); sc->ti_cdata.ti_rx_mini_map[i] = dmamap; if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) return (ENOBUFS); m_new->m_len = m_new->m_pkthdr.len = MHLEN; m_adj(m_new, ETHER_ALIGN); if (bus_dmamap_load_mbuf(sc->sc_dmatag, dmamap, m_new, BUS_DMA_NOWAIT)) return (ENOBUFS); } else { /* * We're re-using a previously allocated mbuf; * be sure to re-init pointers and lengths to * default values. */ m_new = m; m_new->m_data = m_new->m_pktdat; m_new->m_len = m_new->m_pkthdr.len = MHLEN; } r = &sc->ti_rdata->ti_rx_mini_ring[i]; sc->ti_cdata.ti_rx_mini_chain[i] = m_new; TI_HOSTADDR(r->ti_addr) = dmamap->dm_segs[0].ds_addr; r->ti_type = TI_BDTYPE_RECV_BD; r->ti_flags = TI_BDFLAG_MINI_RING | TI_BDFLAG_IP_CKSUM; r->ti_len = dmamap->dm_segs[0].ds_len; r->ti_idx = i; return (0); } /* * Initialize a jumbo receive ring descriptor. This allocates * a jumbo buffer from the pool managed internally by the driver. */ int ti_newbuf_jumbo(struct ti_softc *sc, int i, struct mbuf *m) { struct mbuf *m_new = NULL; struct ti_rx_desc *r; if (m == NULL) { caddr_t buf = NULL; /* Allocate the mbuf. */ MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) return (ENOBUFS); /* Allocate the jumbo buffer */ buf = ti_jalloc(sc); if (buf == NULL) { m_freem(m_new); return (ENOBUFS); } /* Attach the buffer to the mbuf. */ m_new->m_len = m_new->m_pkthdr.len = TI_JUMBO_FRAMELEN; MEXTADD(m_new, buf, TI_JUMBO_FRAMELEN, 0, ti_jfree, sc); } else { /* * We're re-using a previously allocated mbuf; * be sure to re-init pointers and lengths to * default values. */ m_new = m; m_new->m_data = m_new->m_ext.ext_buf; m_new->m_ext.ext_size = TI_JUMBO_FRAMELEN; } m_adj(m_new, ETHER_ALIGN); /* Set up the descriptor. */ r = &sc->ti_rdata->ti_rx_jumbo_ring[i]; sc->ti_cdata.ti_rx_jumbo_chain[i] = m_new; TI_HOSTADDR(r->ti_addr) = TI_JUMBO_DMA_ADDR(sc, m_new); r->ti_type = TI_BDTYPE_RECV_JUMBO_BD; r->ti_flags = TI_BDFLAG_JUMBO_RING | TI_BDFLAG_IP_CKSUM; r->ti_len = m_new->m_len; r->ti_idx = i; return (0); } /* * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, * that's 1MB of memory, which is a lot. For now, we fill only the first * 256 ring entries and hope that our CPU is fast enough to keep up with * the NIC. */ int ti_init_rx_ring_std(struct ti_softc *sc) { int i; struct ti_cmd_desc cmd; for (i = 0; i < TI_SSLOTS; i++) { if (ti_newbuf_std(sc, i, NULL, 0) == ENOBUFS) return (ENOBUFS); } TI_UPDATE_STDPROD(sc, i - 1); sc->ti_std = i - 1; return (0); } void ti_free_rx_ring_std(struct ti_softc *sc) { int i; for (i = 0; i < TI_STD_RX_RING_CNT; i++) { if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) { m_freem(sc->ti_cdata.ti_rx_std_chain[i]); sc->ti_cdata.ti_rx_std_chain[i] = NULL; bus_dmamap_destroy(sc->sc_dmatag, sc->ti_cdata.ti_rx_std_map[i]); sc->ti_cdata.ti_rx_std_map[i] = 0; } bzero(&sc->ti_rdata->ti_rx_std_ring[i], sizeof(struct ti_rx_desc)); } } int ti_init_rx_ring_jumbo(struct ti_softc *sc) { int i; struct ti_cmd_desc cmd; for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { if (ti_newbuf_jumbo(sc, i, NULL) == ENOBUFS) return (ENOBUFS); }; TI_UPDATE_JUMBOPROD(sc, i - 1); sc->ti_jumbo = i - 1; return (0); } void ti_free_rx_ring_jumbo(struct ti_softc *sc) { int i; for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) { m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]); sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL; } bzero(&sc->ti_rdata->ti_rx_jumbo_ring[i], sizeof(struct ti_rx_desc)); } } int ti_init_rx_ring_mini(struct ti_softc *sc) { int i; for (i = 0; i < TI_MSLOTS; i++) { if (ti_newbuf_mini(sc, i, NULL, 0) == ENOBUFS) return (ENOBUFS); }; TI_UPDATE_MINIPROD(sc, i - 1); sc->ti_mini = i - 1; return (0); } void ti_free_rx_ring_mini(struct ti_softc *sc) { int i; for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) { m_freem(sc->ti_cdata.ti_rx_mini_chain[i]); sc->ti_cdata.ti_rx_mini_chain[i] = NULL; bus_dmamap_destroy(sc->sc_dmatag, sc->ti_cdata.ti_rx_mini_map[i]); sc->ti_cdata.ti_rx_mini_map[i] = 0; } bzero(&sc->ti_rdata->ti_rx_mini_ring[i], sizeof(struct ti_rx_desc)); } } void ti_free_tx_ring(struct ti_softc *sc) { int i; struct ti_txmap_entry *entry; if (sc->ti_rdata->ti_tx_ring == NULL) return; for (i = 0; i < TI_TX_RING_CNT; i++) { if (sc->ti_cdata.ti_tx_chain[i] != NULL) { m_freem(sc->ti_cdata.ti_tx_chain[i]); sc->ti_cdata.ti_tx_chain[i] = NULL; SLIST_INSERT_HEAD(&sc->ti_tx_map_listhead, sc->ti_cdata.ti_tx_map[i], link); sc->ti_cdata.ti_tx_map[i] = 0; } bzero(&sc->ti_rdata->ti_tx_ring[i], sizeof(struct ti_tx_desc)); } while ((entry = SLIST_FIRST(&sc->ti_tx_map_listhead))) { SLIST_REMOVE_HEAD(&sc->ti_tx_map_listhead, link); bus_dmamap_destroy(sc->sc_dmatag, entry->dmamap); free(entry, M_DEVBUF); } } int ti_init_tx_ring(struct ti_softc *sc) { int i; bus_dmamap_t dmamap; struct ti_txmap_entry *entry; sc->ti_txcnt = 0; sc->ti_tx_saved_considx = 0; sc->ti_tx_saved_prodidx = 0; CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0); SLIST_INIT(&sc->ti_tx_map_listhead); for (i = 0; i < TI_TX_RING_CNT; i++) { if (bus_dmamap_create(sc->sc_dmatag, TI_JUMBO_FRAMELEN, TI_NTXSEG, MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap)) return (ENOBUFS); entry = malloc(sizeof(*entry), M_DEVBUF, M_NOWAIT); if (!entry) { bus_dmamap_destroy(sc->sc_dmatag, dmamap); return (ENOBUFS); } entry->dmamap = dmamap; SLIST_INSERT_HEAD(&sc->ti_tx_map_listhead, entry, link); } return (0); } /* * The Tigon 2 firmware has a new way to add/delete multicast addresses, * but we have to support the old way too so that Tigon 1 cards will * work. */ void ti_add_mcast(struct ti_softc *sc, struct ether_addr *addr) { struct ti_cmd_desc cmd; u_int16_t *m; u_int32_t ext[2] = {0, 0}; m = (u_int16_t *)&addr->ether_addr_octet[0]; switch(sc->ti_hwrev) { case TI_HWREV_TIGON: CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0); break; case TI_HWREV_TIGON_II: ext[0] = htons(m[0]); ext[1] = (htons(m[1]) << 16) | htons(m[2]); TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2); break; default: printf("%s: unknown hwrev\n", sc->sc_dv.dv_xname); break; } } void ti_del_mcast(struct ti_softc *sc, struct ether_addr *addr) { struct ti_cmd_desc cmd; u_int16_t *m; u_int32_t ext[2] = {0, 0}; m = (u_int16_t *)&addr->ether_addr_octet[0]; switch(sc->ti_hwrev) { case TI_HWREV_TIGON: CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0); break; case TI_HWREV_TIGON_II: ext[0] = htons(m[0]); ext[1] = (htons(m[1]) << 16) | htons(m[2]); TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2); break; default: printf("%s: unknown hwrev\n", sc->sc_dv.dv_xname); break; } } /* * Configure the Tigon's multicast address filter. * * The actual multicast table management is a bit of a pain, thanks to * slight brain damage on the part of both Alteon and us. With our * multicast code, we are only alerted when the multicast address table * changes and at that point we only have the current list of addresses: * we only know the current state, not the previous state, so we don't * actually know what addresses were removed or added. The firmware has * state, but we can't get our grubby mits on it, and there is no 'delete * all multicast addresses' command. Hence, we have to maintain our own * state so we know what addresses have been programmed into the NIC at * any given time. */ void ti_iff(struct ti_softc *sc) { struct ifnet *ifp = &sc->arpcom.ac_if; struct arpcom *ac = &sc->arpcom; struct ether_multi *enm; struct ether_multistep step; struct ti_cmd_desc cmd; struct ti_mc_entry *mc; u_int32_t intrs; TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0); TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0); ifp->if_flags &= ~IFF_ALLMULTI; if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { ifp->if_flags |= IFF_ALLMULTI; if (ifp->if_flags & IFF_PROMISC) { TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0); } else { TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0); } } else { /* Disable interrupts. */ intrs = CSR_READ_4(sc, TI_MB_HOSTINTR); CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); /* First, zot all the existing filters. */ while (SLIST_FIRST(&sc->ti_mc_listhead) != NULL) { mc = SLIST_FIRST(&sc->ti_mc_listhead); ti_del_mcast(sc, &mc->mc_addr); SLIST_REMOVE_HEAD(&sc->ti_mc_listhead, mc_entries); free(mc, M_DEVBUF); } /* Now program new ones. */ ETHER_FIRST_MULTI(step, ac, enm); while (enm != NULL) { mc = malloc(sizeof(struct ti_mc_entry), M_DEVBUF, M_NOWAIT); if (mc == NULL) panic("ti_iff"); bcopy(enm->enm_addrlo, &mc->mc_addr, ETHER_ADDR_LEN); SLIST_INSERT_HEAD(&sc->ti_mc_listhead, mc, mc_entries); ti_add_mcast(sc, &mc->mc_addr); ETHER_NEXT_MULTI(step, enm); } /* Re-enable interrupts. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs); } } /* * Check to see if the BIOS has configured us for a 64 bit slot when * we aren't actually in one. If we detect this condition, we can work * around it on the Tigon 2 by setting a bit in the PCI state register, * but for the Tigon 1 we must give up and abort the interface attach. */ int ti_64bitslot_war(struct ti_softc *sc) { if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) { CSR_WRITE_4(sc, 0x600, 0); CSR_WRITE_4(sc, 0x604, 0); CSR_WRITE_4(sc, 0x600, 0x5555AAAA); if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) { if (sc->ti_hwrev == TI_HWREV_TIGON) return (EINVAL); else { TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_32BIT_BUS); return (0); } } } return (0); } /* * Do endian, PCI and DMA initialization. Also check the on-board ROM * self-test results. */ int ti_chipinit(struct ti_softc *sc) { u_int32_t chip_rev; /* Initialize link to down state. */ sc->ti_linkstat = TI_EV_CODE_LINK_DOWN; /* Set endianness before we access any non-PCI registers. */ CSR_WRITE_4(sc, TI_MISC_HOST_CTL, TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24)); /* Check the ROM failed bit to see if self-tests passed. */ if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) { printf("%s: board self-diagnostics failed!\n", sc->sc_dv.dv_xname); return (ENODEV); } /* Halt the CPU. */ TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT); /* Figure out the hardware revision. */ chip_rev = CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK; switch(chip_rev) { case TI_REV_TIGON_I: sc->ti_hwrev = TI_HWREV_TIGON; break; case TI_REV_TIGON_II: sc->ti_hwrev = TI_HWREV_TIGON_II; break; default: printf("\n"); printf("%s: unsupported chip revision: %x\n", sc->sc_dv.dv_xname, chip_rev); return (ENODEV); } /* Do special setup for Tigon 2. */ if (sc->ti_hwrev == TI_HWREV_TIGON_II) { TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT); TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K); TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS); } if (sc->ti_sbus) ti_chipinit_sbus(sc); else ti_chipinit_pci(sc); /* Recommended settings from Tigon manual. */ CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W); CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W); if (ti_64bitslot_war(sc)) { printf("%s: bios thinks we're in a 64 bit slot, " "but we aren't", sc->sc_dv.dv_xname); return (EINVAL); } return (0); } void ti_chipinit_pci(struct ti_softc *sc) { u_int32_t cacheline; u_int32_t pci_writemax = 0; /* Set up the PCI state register. */ CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD | TI_PCI_WRITE_CMD); if (sc->ti_hwrev == TI_HWREV_TIGON_II) TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT); /* Clear the read/write max DMA parameters. */ TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA| TI_PCISTATE_READ_MAXDMA)); /* Get cache line size. */ cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF; /* * If the system has set enabled the PCI memory write * and invalidate command in the command register, set * the write max parameter accordingly. This is necessary * to use MWI with the Tigon 2. */ if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCI_COMMAND_INVALIDATE_ENABLE) { switch(cacheline) { case 1: case 4: case 8: case 16: case 32: case 64: break; default: /* Disable PCI memory write and invalidate. */ CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc, TI_PCI_CMDSTAT) & ~PCI_COMMAND_INVALIDATE_ENABLE); break; } } #ifdef __brokenalpha__ /* * From the Alteon sample driver: * Must insure that we do not cross an 8K (bytes) boundary * for DMA reads. Our highest limit is 1K bytes. This is a * restriction on some ALPHA platforms with early revision * 21174 PCI chipsets, such as the AlphaPC 164lx */ TI_SETBIT(sc, TI_PCI_STATE, pci_writemax|TI_PCI_READMAX_1024); #else TI_SETBIT(sc, TI_PCI_STATE, pci_writemax); #endif /* This sets the min dma param all the way up (0xff). */ TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA); /* Configure DMA variables. */ CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_DMA_SWAP_OPTIONS | TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB | TI_OPMODE_DONT_FRAG_JUMBO); } void ti_chipinit_sbus(struct ti_softc *sc) { /* Set up the PCI state register. */ CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD | TI_PCI_WRITE_CMD | TI_PCISTATE_NO_SWAP_READ_DMA | TI_PCISTATE_NO_SWAP_WRITE_DMA | TI_PCI_WRITEMAX_64 | TI_PCI_READMAX_64 | TI_PCISTATE_PROVIDE_LEN); /* Configure DMA variables. */ CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_WORDSWAP_BD | TI_OPMODE_1_DMA_ACTIVE | TI_OPMODE_SBUS | TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB | TI_OPMODE_DONT_FRAG_JUMBO); } /* * Initialize the general information block and firmware, and * start the CPU(s) running. */ int ti_gibinit(struct ti_softc *sc) { struct ti_rcb *rcb; int i; struct ifnet *ifp; ifp = &sc->arpcom.ac_if; /* Disable interrupts for now. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); /* * Tell the chip where to find the general information block. * While this struct could go into >4GB memory, we allocate it in a * single slab with the other descriptors, and those don't seem to * support being located in a 64-bit region. */ CSR_WRITE_4(sc, TI_GCR_GENINFO_HI, 0); CSR_WRITE_4(sc, TI_GCR_GENINFO_LO, TI_RING_DMA_ADDR(sc, ti_info) & 0xffffffff); /* Load the firmware into SRAM. */ ti_loadfw(sc); /* Set up the contents of the general info and ring control blocks. */ /* Set up the event ring and producer pointer. */ rcb = &sc->ti_rdata->ti_info.ti_ev_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc, ti_event_ring); rcb->ti_flags = 0; TI_HOSTADDR(sc->ti_rdata->ti_info.ti_ev_prodidx_ptr) = TI_RING_DMA_ADDR(sc, ti_ev_prodidx_r); sc->ti_ev_prodidx.ti_idx = 0; CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0); sc->ti_ev_saved_considx = 0; /* Set up the command ring and producer mailbox. */ rcb = &sc->ti_rdata->ti_info.ti_cmd_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_GCR_NIC_ADDR(TI_GCR_CMDRING); rcb->ti_flags = 0; rcb->ti_max_len = 0; for (i = 0; i < TI_CMD_RING_CNT; i++) { CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0); } CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0); CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0); sc->ti_cmd_saved_prodidx = 0; /* * Assign the address of the stats refresh buffer. * We re-use the current stats buffer for this to * conserve memory. */ TI_HOSTADDR(sc->ti_rdata->ti_info.ti_refresh_stats_ptr) = TI_RING_DMA_ADDR(sc, ti_info.ti_stats); /* Set up the standard receive ring. */ rcb = &sc->ti_rdata->ti_info.ti_std_rx_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc, ti_rx_std_ring); rcb->ti_max_len = ETHER_MAX_LEN; rcb->ti_flags = 0; rcb->ti_flags |= TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; #if NVLAN > 0 if (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; #endif /* Set up the jumbo receive ring. */ rcb = &sc->ti_rdata->ti_info.ti_jumbo_rx_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc, ti_rx_jumbo_ring); rcb->ti_max_len = TI_JUMBO_FRAMELEN; rcb->ti_flags = 0; rcb->ti_flags |= TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; #if NVLAN > 0 if (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; #endif /* * Set up the mini ring. Only activated on the * Tigon 2 but the slot in the config block is * still there on the Tigon 1. */ rcb = &sc->ti_rdata->ti_info.ti_mini_rx_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc, ti_rx_mini_ring); rcb->ti_max_len = MHLEN - ETHER_ALIGN; if (sc->ti_hwrev == TI_HWREV_TIGON) rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED; else rcb->ti_flags = 0; rcb->ti_flags |= TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; #if NVLAN > 0 if (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; #endif /* * Set up the receive return ring. */ rcb = &sc->ti_rdata->ti_info.ti_return_rcb; TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc,ti_rx_return_ring); rcb->ti_flags = 0; rcb->ti_max_len = TI_RETURN_RING_CNT; TI_HOSTADDR(sc->ti_rdata->ti_info.ti_return_prodidx_ptr) = TI_RING_DMA_ADDR(sc, ti_return_prodidx_r); /* * Set up the tx ring. Note: for the Tigon 2, we have the option * of putting the transmit ring in the host's address space and * letting the chip DMA it instead of leaving the ring in the NIC's * memory and accessing it through the shared memory region. We * do this for the Tigon 2, but it doesn't work on the Tigon 1, * so we have to revert to the shared memory scheme if we detect * a Tigon 1 chip. */ CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE); bzero(sc->ti_rdata->ti_tx_ring, TI_TX_RING_CNT * sizeof(struct ti_tx_desc)); rcb = &sc->ti_rdata->ti_info.ti_tx_rcb; if (sc->ti_hwrev == TI_HWREV_TIGON) rcb->ti_flags = 0; else rcb->ti_flags = TI_RCB_FLAG_HOST_RING; rcb->ti_flags |= TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; #if NVLAN > 0 if (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; #endif rcb->ti_max_len = TI_TX_RING_CNT; if (sc->ti_hwrev == TI_HWREV_TIGON) TI_HOSTADDR(rcb->ti_hostaddr) = TI_TX_RING_BASE; else TI_HOSTADDR(rcb->ti_hostaddr) = TI_RING_DMA_ADDR(sc, ti_tx_ring); TI_HOSTADDR(sc->ti_rdata->ti_info.ti_tx_considx_ptr) = TI_RING_DMA_ADDR(sc, ti_tx_considx_r); TI_RING_DMASYNC(sc, ti_info, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); /* Set up tuneables */ CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, (sc->ti_rx_coal_ticks / 10)); CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks); CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks); CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds); CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds); CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio); /* Turn interrupts on. */ CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0); CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); /* Start CPU. */ TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP)); return (0); } int ti_attach(struct ti_softc *sc) { bus_dma_segment_t seg; int rseg; struct ifnet *ifp; caddr_t kva; if (ti_chipinit(sc)) { printf("%s: chip initialization failed\n", sc->sc_dv.dv_xname); return (1); } /* Zero out the NIC's on-board SRAM. */ ti_mem_set(sc, 0x2000, 0x100000 - 0x2000); /* Init again -- zeroing memory may have clobbered some registers. */ if (ti_chipinit(sc)) { printf("%s: chip initialization failed\n", sc->sc_dv.dv_xname); return (1); } /* * Get station address from the EEPROM. Note: the manual states * that the MAC address is at offset 0x8c, however the data is * stored as two longwords (since that's how it's loaded into * the NIC). This means the MAC address is actually preceded * by two zero bytes. We need to skip over those. */ if (ti_read_eeprom(sc, (caddr_t)&sc->arpcom.ac_enaddr, TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { printf("%s: failed to read station address\n", sc->sc_dv.dv_xname); return (1); } /* * A Tigon chip was detected. Inform the world. */ printf(", address %s\n", ether_sprintf(sc->arpcom.ac_enaddr)); /* Allocate the general information block and ring buffers. */ if (bus_dmamem_alloc(sc->sc_dmatag, sizeof(struct ti_ring_data), PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { printf("%s: can't alloc rx buffers\n", sc->sc_dv.dv_xname); return (1); } if (bus_dmamem_map(sc->sc_dmatag, &seg, rseg, sizeof(struct ti_ring_data), &kva, BUS_DMA_NOWAIT)) { printf("%s: can't map dma buffers (%d bytes)\n", sc->sc_dv.dv_xname, sizeof(struct ti_ring_data)); goto fail_1; } if (bus_dmamap_create(sc->sc_dmatag, sizeof(struct ti_ring_data), 1, sizeof(struct ti_ring_data), 0, BUS_DMA_NOWAIT, &sc->ti_ring_map)) { printf("%s: can't create dma map\n", sc->sc_dv.dv_xname); goto fail_2; } if (bus_dmamap_load(sc->sc_dmatag, sc->ti_ring_map, kva, sizeof(struct ti_ring_data), NULL, BUS_DMA_NOWAIT)) { goto fail_3; } sc->ti_rdata = (struct ti_ring_data *)kva; bzero(sc->ti_rdata, sizeof(struct ti_ring_data)); /* Try to allocate memory for jumbo buffers. */ if (ti_alloc_jumbo_mem(sc)) { printf("%s: jumbo buffer allocation failed\n", sc->sc_dv.dv_xname); goto fail_3; } /* Set default tuneable values. */ sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC; sc->ti_rx_coal_ticks = TI_TICKS_PER_SEC / 5000; sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500; sc->ti_rx_max_coal_bds = 64; sc->ti_tx_max_coal_bds = 128; sc->ti_tx_buf_ratio = 21; /* Set up ifnet structure */ ifp = &sc->arpcom.ac_if; ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = ti_ioctl; ifp->if_start = ti_start; ifp->if_watchdog = ti_watchdog; ifp->if_hardmtu = TI_JUMBO_FRAMELEN - ETHER_HDR_LEN; IFQ_SET_MAXLEN(&ifp->if_snd, TI_TX_RING_CNT - 1); IFQ_SET_READY(&ifp->if_snd); bcopy(sc->sc_dv.dv_xname, ifp->if_xname, IFNAMSIZ); ifp->if_capabilities = IFCAP_VLAN_MTU; #if NVLAN > 0 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING; #endif /* Set up ifmedia support. */ ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts); if (sc->ti_copper) { /* * Copper cards allow manual 10/100 mode selection, * but not manual 1000baseTX mode selection. Why? * Because currently there's no way to specify the * master/slave setting through the firmware interface, * so Alteon decided to just bag it and handle it * via autonegotiation. */ ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL); } else { /* Fiber cards don't support 10/100 modes. */ ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); } ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO); /* * Call MI attach routines. */ if_attach(ifp); ether_ifattach(ifp); return (0); fail_3: bus_dmamap_destroy(sc->sc_dmatag, sc->ti_ring_map); fail_2: bus_dmamem_unmap(sc->sc_dmatag, kva, sizeof(struct ti_ring_data)); fail_1: bus_dmamem_free(sc->sc_dmatag, &seg, rseg); return (1); } /* * Frame reception handling. This is called if there's a frame * on the receive return list. * * Note: we have to be able to handle three possibilities here: * 1) the frame is from the mini receive ring (can only happen) * on Tigon 2 boards) * 2) the frame is from the jumbo receive ring * 3) the frame is from the standard receive ring */ void ti_rxeof(struct ti_softc *sc) { struct ifnet *ifp; struct ti_cmd_desc cmd; ifp = &sc->arpcom.ac_if; while(sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) { struct ti_rx_desc *cur_rx; u_int32_t rxidx; struct mbuf *m = NULL; bus_dmamap_t dmamap; cur_rx = &sc->ti_rdata->ti_rx_return_ring[sc->ti_rx_saved_considx]; rxidx = cur_rx->ti_idx; TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT); if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) { TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT); m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx]; sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL; if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { ifp->if_ierrors++; ti_newbuf_jumbo(sc, sc->ti_jumbo, m); continue; } if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) { struct mbuf *m0; m0 = m_devget(mtod(m, char *), cur_rx->ti_len, ETHER_ALIGN, ifp, NULL); ti_newbuf_jumbo(sc, sc->ti_jumbo, m); if (m0 == NULL) { ifp->if_ierrors++; continue; } m = m0; } } else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) { TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT); m = sc->ti_cdata.ti_rx_mini_chain[rxidx]; sc->ti_cdata.ti_rx_mini_chain[rxidx] = NULL; dmamap = sc->ti_cdata.ti_rx_mini_map[rxidx]; sc->ti_cdata.ti_rx_mini_map[rxidx] = 0; if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { ifp->if_ierrors++; ti_newbuf_mini(sc, sc->ti_mini, m, dmamap); continue; } if (ti_newbuf_mini(sc, sc->ti_mini, NULL, dmamap) == ENOBUFS) { ifp->if_ierrors++; ti_newbuf_mini(sc, sc->ti_mini, m, dmamap); continue; } } else { TI_INC(sc->ti_std, TI_STD_RX_RING_CNT); m = sc->ti_cdata.ti_rx_std_chain[rxidx]; sc->ti_cdata.ti_rx_std_chain[rxidx] = NULL; dmamap = sc->ti_cdata.ti_rx_std_map[rxidx]; sc->ti_cdata.ti_rx_std_map[rxidx] = 0; if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { ifp->if_ierrors++; ti_newbuf_std(sc, sc->ti_std, m, dmamap); continue; } if (ti_newbuf_std(sc, sc->ti_std, NULL, dmamap) == ENOBUFS) { ifp->if_ierrors++; ti_newbuf_std(sc, sc->ti_std, m, dmamap); continue; } } if (m == NULL) panic("%s: couldn't get mbuf", sc->sc_dv.dv_xname); m->m_pkthdr.len = m->m_len = cur_rx->ti_len; ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; #if NVLAN > 0 if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) { m->m_pkthdr.ether_vtag = cur_rx->ti_vlan_tag; m->m_flags |= M_VLANTAG; } #endif #if NBPFILTER > 0 /* * Handle BPF listeners. Let the BPF user see the packet. */ if (ifp->if_bpf) bpf_mtap_ether(ifp->if_bpf, m, BPF_DIRECTION_IN); #endif if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0) m->m_pkthdr.csum_flags |= M_IPV4_CSUM_IN_OK; ether_input_mbuf(ifp, m); } /* Only necessary on the Tigon 1. */ if (sc->ti_hwrev == TI_HWREV_TIGON) CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, sc->ti_rx_saved_considx); TI_UPDATE_STDPROD(sc, sc->ti_std); TI_UPDATE_MINIPROD(sc, sc->ti_mini); TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo); } void ti_txeof_tigon1(struct ti_softc *sc) { struct ifnet *ifp; struct ti_txmap_entry *entry; int active = 1; ifp = &sc->arpcom.ac_if; /* * Go through our tx ring and free mbufs for those * frames that have been sent. */ while (sc->ti_tx_saved_considx != sc->ti_tx_considx.ti_idx) { u_int32_t idx = 0; struct ti_tx_desc txdesc; idx = sc->ti_tx_saved_considx; ti_mem_read(sc, TI_TX_RING_BASE + idx * sizeof(txdesc), sizeof(txdesc), (caddr_t)&txdesc); if (txdesc.ti_flags & TI_BDFLAG_END) ifp->if_opackets++; if (sc->ti_cdata.ti_tx_chain[idx] != NULL) { m_freem(sc->ti_cdata.ti_tx_chain[idx]); sc->ti_cdata.ti_tx_chain[idx] = NULL; entry = sc->ti_cdata.ti_tx_map[idx]; bus_dmamap_sync(sc->sc_dmatag, entry->dmamap, 0, entry->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmatag, entry->dmamap); SLIST_INSERT_HEAD(&sc->ti_tx_map_listhead, entry, link); sc->ti_cdata.ti_tx_map[idx] = NULL; } sc->ti_txcnt--; TI_INC(sc->ti_tx_saved_considx, TI_TX_RING_CNT); ifp->if_timer = 0; active = 0; } if (!active) ifp->if_flags &= ~IFF_OACTIVE; } void ti_txeof_tigon2(struct ti_softc *sc) { struct ti_tx_desc *cur_tx = NULL; struct ifnet *ifp; struct ti_txmap_entry *entry; ifp = &sc->arpcom.ac_if; /* * Go through our tx ring and free mbufs for those * frames that have been sent. */ while (sc->ti_tx_saved_considx != sc->ti_tx_considx.ti_idx) { u_int32_t idx = 0; idx = sc->ti_tx_saved_considx; cur_tx = &sc->ti_rdata->ti_tx_ring[idx]; if (cur_tx->ti_flags & TI_BDFLAG_END) ifp->if_opackets++; if (sc->ti_cdata.ti_tx_chain[idx] != NULL) { m_freem(sc->ti_cdata.ti_tx_chain[idx]); sc->ti_cdata.ti_tx_chain[idx] = NULL; entry = sc->ti_cdata.ti_tx_map[idx]; bus_dmamap_sync(sc->sc_dmatag, entry->dmamap, 0, entry->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmatag, entry->dmamap); SLIST_INSERT_HEAD(&sc->ti_tx_map_listhead, entry, link); sc->ti_cdata.ti_tx_map[idx] = NULL; } sc->ti_txcnt--; TI_INC(sc->ti_tx_saved_considx, TI_TX_RING_CNT); ifp->if_timer = 0; } if (cur_tx != NULL) ifp->if_flags &= ~IFF_OACTIVE; } int ti_intr(void *xsc) { struct ti_softc *sc; struct ifnet *ifp; sc = xsc; ifp = &sc->arpcom.ac_if; /* XXX checking this register is expensive. */ /* Make sure this is really our interrupt. */ if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) return (0); /* Ack interrupt and stop others from occurring. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); if (ifp->if_flags & IFF_RUNNING) { /* Check RX return ring producer/consumer */ ti_rxeof(sc); /* Check TX ring producer/consumer */ if (sc->ti_hwrev == TI_HWREV_TIGON) ti_txeof_tigon1(sc); else ti_txeof_tigon2(sc); } ti_handle_events(sc); /* Re-enable interrupts. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); if (ifp->if_flags & IFF_RUNNING && !IFQ_IS_EMPTY(&ifp->if_snd)) ti_start(ifp); return (1); } void ti_stats_update(struct ti_softc *sc) { struct ifnet *ifp; struct ti_stats *stats = &sc->ti_rdata->ti_info.ti_stats; ifp = &sc->arpcom.ac_if; TI_RING_DMASYNC(sc, ti_info.ti_stats, BUS_DMASYNC_POSTREAD); ifp->if_collisions += stats->dot3StatsSingleCollisionFrames + stats->dot3StatsMultipleCollisionFrames + stats->dot3StatsExcessiveCollisions + stats->dot3StatsLateCollisions - ifp->if_collisions; TI_RING_DMASYNC(sc, ti_info.ti_stats, BUS_DMASYNC_PREREAD); } /* * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data * pointers to descriptors. */ int ti_encap_tigon1(struct ti_softc *sc, struct mbuf *m_head, u_int32_t *txidx) { u_int32_t frag, cur; struct ti_txmap_entry *entry; bus_dmamap_t txmap; struct ti_tx_desc txdesc; int i = 0; entry = SLIST_FIRST(&sc->ti_tx_map_listhead); if (entry == NULL) return (ENOBUFS); txmap = entry->dmamap; cur = frag = *txidx; /* * Start packing the mbufs in this chain into * the fragment pointers. Stop when we run out * of fragments or hit the end of the mbuf chain. */ if (bus_dmamap_load_mbuf(sc->sc_dmatag, txmap, m_head, BUS_DMA_NOWAIT)) return (ENOBUFS); /* * Sanity check: avoid coming within 16 descriptors * of the end of the ring. */ if (txmap->dm_nsegs > (TI_TX_RING_CNT - sc->ti_txcnt - 16)) goto fail_unload; for (i = 0; i < txmap->dm_nsegs; i++) { if (sc->ti_cdata.ti_tx_chain[frag] != NULL) break; memset(&txdesc, 0, sizeof(txdesc)); TI_HOSTADDR(txdesc.ti_addr) = txmap->dm_segs[i].ds_addr; txdesc.ti_len = txmap->dm_segs[i].ds_len & 0xffff; txdesc.ti_flags = 0; txdesc.ti_vlan_tag = 0; #if NVLAN > 0 if (m_head->m_flags & M_VLANTAG) { txdesc.ti_flags |= TI_BDFLAG_VLAN_TAG; txdesc.ti_vlan_tag = m_head->m_pkthdr.ether_vtag; } #endif ti_mem_write(sc, TI_TX_RING_BASE + frag * sizeof(txdesc), sizeof(txdesc), (caddr_t)&txdesc); cur = frag; TI_INC(frag, TI_TX_RING_CNT); } if (frag == sc->ti_tx_saved_considx) goto fail_unload; txdesc.ti_flags |= TI_BDFLAG_END; ti_mem_write(sc, TI_TX_RING_BASE + cur * sizeof(txdesc), sizeof(txdesc), (caddr_t)&txdesc); bus_dmamap_sync(sc->sc_dmatag, txmap, 0, txmap->dm_mapsize, BUS_DMASYNC_PREWRITE); sc->ti_cdata.ti_tx_chain[cur] = m_head; SLIST_REMOVE_HEAD(&sc->ti_tx_map_listhead, link); sc->ti_cdata.ti_tx_map[cur] = entry; sc->ti_txcnt += txmap->dm_nsegs; *txidx = frag; return (0); fail_unload: bus_dmamap_unload(sc->sc_dmatag, txmap); return (ENOBUFS); } /* * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data * pointers to descriptors. */ int ti_encap_tigon2(struct ti_softc *sc, struct mbuf *m_head, u_int32_t *txidx) { struct ti_tx_desc *f = NULL; u_int32_t frag, cur; struct ti_txmap_entry *entry; bus_dmamap_t txmap; int i = 0; entry = SLIST_FIRST(&sc->ti_tx_map_listhead); if (entry == NULL) return (ENOBUFS); txmap = entry->dmamap; cur = frag = *txidx; /* * Start packing the mbufs in this chain into * the fragment pointers. Stop when we run out * of fragments or hit the end of the mbuf chain. */ if (bus_dmamap_load_mbuf(sc->sc_dmatag, txmap, m_head, BUS_DMA_NOWAIT)) return (ENOBUFS); /* * Sanity check: avoid coming within 16 descriptors * of the end of the ring. */ if (txmap->dm_nsegs > (TI_TX_RING_CNT - sc->ti_txcnt - 16)) goto fail_unload; for (i = 0; i < txmap->dm_nsegs; i++) { f = &sc->ti_rdata->ti_tx_ring[frag]; if (sc->ti_cdata.ti_tx_chain[frag] != NULL) break; TI_HOSTADDR(f->ti_addr) = txmap->dm_segs[i].ds_addr; f->ti_len = txmap->dm_segs[i].ds_len & 0xffff; f->ti_flags = 0; f->ti_vlan_tag = 0; #if NVLAN > 0 if (m_head->m_flags & M_VLANTAG) { f->ti_flags |= TI_BDFLAG_VLAN_TAG; f->ti_vlan_tag = m_head->m_pkthdr.ether_vtag; } #endif cur = frag; TI_INC(frag, TI_TX_RING_CNT); } if (frag == sc->ti_tx_saved_considx) goto fail_unload; sc->ti_rdata->ti_tx_ring[cur].ti_flags |= TI_BDFLAG_END; bus_dmamap_sync(sc->sc_dmatag, txmap, 0, txmap->dm_mapsize, BUS_DMASYNC_PREWRITE); TI_RING_DMASYNC(sc, ti_tx_ring[cur], BUS_DMASYNC_POSTREAD); sc->ti_cdata.ti_tx_chain[cur] = m_head; SLIST_REMOVE_HEAD(&sc->ti_tx_map_listhead, link); sc->ti_cdata.ti_tx_map[cur] = entry; sc->ti_txcnt += txmap->dm_nsegs; *txidx = frag; return (0); fail_unload: bus_dmamap_unload(sc->sc_dmatag, txmap); return (ENOBUFS); } /* * Main transmit routine. To avoid having to do mbuf copies, we put pointers * to the mbuf data regions directly in the transmit descriptors. */ void ti_start(struct ifnet *ifp) { struct ti_softc *sc; struct mbuf *m_head = NULL; u_int32_t prodidx; int pkts = 0, error; sc = ifp->if_softc; prodidx = sc->ti_tx_saved_prodidx; while(sc->ti_cdata.ti_tx_chain[prodidx] == NULL) { IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) break; /* * Pack the data into the transmit ring. If we * don't have room, set the OACTIVE flag and wait * for the NIC to drain the ring. */ if (sc->ti_hwrev == TI_HWREV_TIGON) error = ti_encap_tigon1(sc, m_head, &prodidx); else error = ti_encap_tigon2(sc, m_head, &prodidx); if (error) { ifp->if_flags |= IFF_OACTIVE; break; } /* now we are committed to transmit the packet */ IFQ_DEQUEUE(&ifp->if_snd, m_head); pkts++; /* * If there's a BPF listener, bounce a copy of this frame * to him. */ #if NBPFILTER > 0 if (ifp->if_bpf) bpf_mtap_ether(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); #endif } if (pkts == 0) return; /* Transmit */ sc->ti_tx_saved_prodidx = prodidx; CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, prodidx); /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; } void ti_init(void *xsc) { struct ti_softc *sc = xsc; int s; s = splnet(); /* Cancel pending I/O and flush buffers. */ ti_stop(sc); /* Init the gen info block, ring control blocks and firmware. */ if (ti_gibinit(sc)) { printf("%s: initialization failure\n", sc->sc_dv.dv_xname); splx(s); return; } splx(s); } void ti_init2(struct ti_softc *sc) { struct ti_cmd_desc cmd; struct ifnet *ifp; u_int16_t *m; struct ifmedia *ifm; int tmp; ifp = &sc->arpcom.ac_if; /* Specify MTU and interface index. */ CSR_WRITE_4(sc, TI_GCR_IFINDEX, sc->sc_dv.dv_unit); CSR_WRITE_4(sc, TI_GCR_IFMTU, TI_JUMBO_FRAMELEN + ETHER_VLAN_ENCAP_LEN); TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0); /* Load our MAC address. */ m = (u_int16_t *)&sc->arpcom.ac_enaddr[0]; CSR_WRITE_4(sc, TI_GCR_PAR0, htons(m[0])); CSR_WRITE_4(sc, TI_GCR_PAR1, (htons(m[1]) << 16) | htons(m[2])); TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0); /* Program promiscuous mode and multicast filters. */ ti_iff(sc); /* * If this is a Tigon 1, we should tell the * firmware to use software packet filtering. */ if (sc->ti_hwrev == TI_HWREV_TIGON) TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0); /* Init RX ring. */ if (ti_init_rx_ring_std(sc) == ENOBUFS) panic("not enough mbufs for rx ring"); /* Init jumbo RX ring. */ ti_init_rx_ring_jumbo(sc); /* * If this is a Tigon 2, we can also configure the * mini ring. */ if (sc->ti_hwrev == TI_HWREV_TIGON_II) ti_init_rx_ring_mini(sc); CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0); sc->ti_rx_saved_considx = 0; /* Init TX ring. */ ti_init_tx_ring(sc); /* Tell firmware we're alive. */ TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0); /* Enable host interrupts. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; /* * Make sure to set media properly. We have to do this * here since we have to issue commands in order to set * the link negotiation and we can't issue commands until * the firmware is running. */ ifm = &sc->ifmedia; tmp = ifm->ifm_media; ifm->ifm_media = ifm->ifm_cur->ifm_media; ti_ifmedia_upd(ifp); ifm->ifm_media = tmp; } /* * Set media options. */ int ti_ifmedia_upd(struct ifnet *ifp) { struct ti_softc *sc; struct ifmedia *ifm; struct ti_cmd_desc cmd; sc = ifp->if_softc; ifm = &sc->ifmedia; if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) return(EINVAL); switch(IFM_SUBTYPE(ifm->ifm_media)) { case IFM_AUTO: CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| TI_GLNK_FULL_DUPLEX|TI_GLNK_RX_FLOWCTL_Y| TI_GLNK_AUTONEGENB|TI_GLNK_ENB); CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB| TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| TI_LNK_AUTONEGENB|TI_LNK_ENB); TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, TI_CMD_CODE_NEGOTIATE_BOTH, 0); break; case IFM_1000_SX: case IFM_1000_T: CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| TI_GLNK_RX_FLOWCTL_Y|TI_GLNK_ENB); CSR_WRITE_4(sc, TI_GCR_LINK, 0); if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX); } TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, TI_CMD_CODE_NEGOTIATE_GIGABIT, 0); break; case IFM_100_FX: case IFM_10_FL: case IFM_100_TX: case IFM_10_T: CSR_WRITE_4(sc, TI_GCR_GLINK, 0); CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF); if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX || IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) { TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB); } else { TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB); } if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX); } else { TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX); } TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, TI_CMD_CODE_NEGOTIATE_10_100, 0); break; } return (0); } /* * Report current media status. */ void ti_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct ti_softc *sc; u_int32_t media = 0; sc = ifp->if_softc; ifmr->ifm_status = IFM_AVALID; ifmr->ifm_active = IFM_ETHER; if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) { ifmr->ifm_active |= IFM_NONE; return; } ifmr->ifm_status |= IFM_ACTIVE; if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) { media = CSR_READ_4(sc, TI_GCR_GLINK_STAT); if (sc->ti_copper) ifmr->ifm_active |= IFM_1000_T; else ifmr->ifm_active |= IFM_1000_SX; if (media & TI_GLNK_FULL_DUPLEX) ifmr->ifm_active |= IFM_FDX; else ifmr->ifm_active |= IFM_HDX; } else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) { media = CSR_READ_4(sc, TI_GCR_LINK_STAT); if (sc->ti_copper) { if (media & TI_LNK_100MB) ifmr->ifm_active |= IFM_100_TX; if (media & TI_LNK_10MB) ifmr->ifm_active |= IFM_10_T; } else { if (media & TI_LNK_100MB) ifmr->ifm_active |= IFM_100_FX; if (media & TI_LNK_10MB) ifmr->ifm_active |= IFM_10_FL; } if (media & TI_LNK_FULL_DUPLEX) ifmr->ifm_active |= IFM_FDX; if (media & TI_LNK_HALF_DUPLEX) ifmr->ifm_active |= IFM_HDX; } } int ti_ioctl(struct ifnet *ifp, u_long command, caddr_t data) { struct ti_softc *sc = ifp->if_softc; struct ifaddr *ifa = (struct ifaddr *)data; struct ifreq *ifr = (struct ifreq *)data; int s, error = 0; s = splnet(); switch(command) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; if ((ifp->if_flags & IFF_RUNNING) == 0) ti_init(sc); #ifdef INET if (ifa->ifa_addr->sa_family == AF_INET) arp_ifinit(&sc->arpcom, ifa); #endif break; case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_flags & IFF_RUNNING) error = ENETRESET; else ti_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) ti_stop(sc); } break; case SIOCSIFMEDIA: case SIOCGIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); break; default: error = ether_ioctl(ifp, &sc->arpcom, command, data); } if (error == ENETRESET) { if (ifp->if_flags & IFF_RUNNING) ti_iff(sc); error = 0; } splx(s); return (error); } void ti_watchdog(struct ifnet *ifp) { struct ti_softc *sc; sc = ifp->if_softc; printf("%s: watchdog timeout -- resetting\n", sc->sc_dv.dv_xname); ti_stop(sc); ti_init(sc); ifp->if_oerrors++; } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ void ti_stop(struct ti_softc *sc) { struct ifnet *ifp; struct ti_cmd_desc cmd; ifp = &sc->arpcom.ac_if; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); /* Disable host interrupts. */ CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); /* * Tell firmware we're shutting down. */ TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0); /* Halt and reinitialize. */ ti_chipinit(sc); ti_mem_set(sc, 0x2000, 0x100000 - 0x2000); ti_chipinit(sc); /* Free the RX lists. */ ti_free_rx_ring_std(sc); /* Free jumbo RX list. */ ti_free_rx_ring_jumbo(sc); /* Free mini RX list. */ ti_free_rx_ring_mini(sc); /* Free TX buffers. */ ti_free_tx_ring(sc); sc->ti_ev_prodidx.ti_idx = 0; sc->ti_return_prodidx.ti_idx = 0; sc->ti_tx_considx.ti_idx = 0; sc->ti_tx_saved_considx = TI_TXCONS_UNSET; }