/*- * Copyright (c) 2003 * 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. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define NDIS_DUMMY_PATH "\\\\some\\bogus\\path" static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t); static void ndis_statusdone_func(ndis_handle); static void ndis_setdone_func(ndis_handle, ndis_status); static void ndis_getdone_func(ndis_handle, ndis_status); static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t); static void ndis_sendrsrcavail_func(ndis_handle); static void ndis_intrhand(kdpc *, device_object *, irp *, struct ndis_softc *); static void ndis_return(kdpc *, void *, void *, void *); static image_patch_table kernndis_functbl[] = { IMPORT_SFUNC(ndis_status_func, 4), IMPORT_SFUNC(ndis_statusdone_func, 1), IMPORT_SFUNC(ndis_setdone_func, 2), IMPORT_SFUNC(ndis_getdone_func, 2), IMPORT_SFUNC(ndis_resetdone_func, 3), IMPORT_SFUNC(ndis_sendrsrcavail_func, 1), IMPORT_SFUNC(ndis_intrhand, 4), IMPORT_SFUNC(ndis_return, 1), { NULL, NULL, NULL } }; struct nd_head ndis_devhead; static struct mtx ndis_req_mtx; /* * This allows us to export our symbols to other modules. * Note that we call ourselves 'ndisapi' to avoid a namespace * collision with if_ndis.ko, which internally calls itself * 'ndis.' */ static int ndis_modevent(module_t mod, int cmd, void *arg) { int error = 0; image_patch_table *patch; switch (cmd) { case MOD_LOAD: /* Initialize subsystems */ windrv_libinit(); hal_libinit(); ndis_libinit(); ntoskrnl_libinit(); usbd_libinit(); patch = kernndis_functbl; while (patch->ipt_func != NULL) { windrv_wrap((funcptr)patch->ipt_func, (funcptr *)&patch->ipt_wrap, patch->ipt_argcnt, patch->ipt_ftype); patch++; } TAILQ_INIT(&ndis_devhead); mtx_init(&ndis_req_mtx, "NDIS request lock", MTX_NDIS_LOCK, MTX_DEF); break; case MOD_SHUTDOWN: if (TAILQ_FIRST(&ndis_devhead) == NULL) { /* Shut down subsystems */ hal_libfini(); ndis_libfini(); ntoskrnl_libfini(); usbd_libfini(); windrv_libfini(); patch = kernndis_functbl; while (patch->ipt_func != NULL) { windrv_unwrap(patch->ipt_wrap); patch++; } mtx_destroy(&ndis_req_mtx); } break; case MOD_UNLOAD: /* Shut down subsystems */ hal_libfini(); ndis_libfini(); ntoskrnl_libfini(); usbd_libfini(); windrv_libfini(); patch = kernndis_functbl; while (patch->ipt_func != NULL) { windrv_unwrap(patch->ipt_wrap); patch++; } mtx_destroy(&ndis_req_mtx); break; default: error = EINVAL; break; } return(error); } DEV_MODULE(ndisapi, ndis_modevent, NULL); MODULE_VERSION(ndisapi, 1); int ndis_thsuspend(p, m, timo) struct proc *p; struct mtx *m; int timo; { int error; if (m != NULL) { error = msleep(&p->p_siglist, m, curthread->td_priority, "ndissp", timo); } else { PROC_LOCK(p); error = msleep(&p->p_siglist, &p->p_mtx, curthread->td_priority|PDROP, "ndissp", timo); } return(error); } void ndis_thresume(p) struct proc *p; { wakeup(&p->p_siglist); return; } static void ndis_sendrsrcavail_func(adapter) ndis_handle adapter; { return; } static void ndis_status_func(adapter, status, sbuf, slen) ndis_handle adapter; ndis_status status; void *sbuf; uint32_t slen; { ndis_miniport_block *block; struct ndis_softc *sc; struct ifnet *ifp; block = adapter; sc = device_get_softc(block->nmb_physdeviceobj->do_devext); ifp = sc->ifp; if (ifp->if_flags & IFF_DEBUG) device_printf (sc->ndis_dev, "status: %x\n", status); return; } static void ndis_statusdone_func(adapter) ndis_handle adapter; { ndis_miniport_block *block; struct ndis_softc *sc; struct ifnet *ifp; block = adapter; sc = device_get_softc(block->nmb_physdeviceobj->do_devext); ifp = sc->ifp; if (ifp->if_flags & IFF_DEBUG) device_printf (sc->ndis_dev, "status complete\n"); return; } static void ndis_setdone_func(adapter, status) ndis_handle adapter; ndis_status status; { ndis_miniport_block *block; block = adapter; block->nmb_setstat = status; wakeup(&block->nmb_setstat); return; } static void ndis_getdone_func(adapter, status) ndis_handle adapter; ndis_status status; { ndis_miniport_block *block; block = adapter; block->nmb_getstat = status; wakeup(&block->nmb_getstat); return; } static void ndis_resetdone_func(adapter, status, addressingreset) ndis_handle adapter; ndis_status status; uint8_t addressingreset; { ndis_miniport_block *block; struct ndis_softc *sc; struct ifnet *ifp; block = adapter; sc = device_get_softc(block->nmb_physdeviceobj->do_devext); ifp = sc->ifp; if (ifp->if_flags & IFF_DEBUG) device_printf (sc->ndis_dev, "reset done...\n"); wakeup(sc); return; } int ndis_create_sysctls(arg) void *arg; { struct ndis_softc *sc; ndis_cfg *vals; char buf[256]; struct sysctl_oid *oidp; struct sysctl_ctx_entry *e; if (arg == NULL) return(EINVAL); sc = arg; vals = sc->ndis_regvals; TAILQ_INIT(&sc->ndis_cfglist_head); #if __FreeBSD_version < 502113 /* Create the sysctl tree. */ sc->ndis_tree = SYSCTL_ADD_NODE(&sc->ndis_ctx, SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, device_get_nameunit(sc->ndis_dev), CTLFLAG_RD, 0, device_get_desc(sc->ndis_dev)); #endif /* Add the driver-specific registry keys. */ vals = sc->ndis_regvals; while(1) { if (vals->nc_cfgkey == NULL) break; if (vals->nc_idx != sc->ndis_devidx) { vals++; continue; } /* See if we already have a sysctl with this name */ oidp = NULL; #if __FreeBSD_version < 502113 TAILQ_FOREACH(e, &sc->ndis_ctx, link) { #else TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) { #endif oidp = e->entry; if (ndis_strcasecmp(oidp->oid_name, vals->nc_cfgkey) == 0) break; oidp = NULL; } if (oidp != NULL) { vals++; continue; } #if __FreeBSD_version < 502113 SYSCTL_ADD_STRING(&sc->ndis_ctx, SYSCTL_CHILDREN(sc->ndis_tree), #else SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), #endif OID_AUTO, vals->nc_cfgkey, CTLFLAG_RW, vals->nc_val, sizeof(vals->nc_val), vals->nc_cfgdesc); vals++; } /* Now add a couple of builtin keys. */ /* * Environment can be either Windows (0) or WindowsNT (1). * We qualify as the latter. */ ndis_add_sysctl(sc, "Environment", "Windows environment", "1", CTLFLAG_RD); /* NDIS version should be 5.1. */ ndis_add_sysctl(sc, "NdisVersion", "NDIS API Version", "0x00050001", CTLFLAG_RD); /* Bus type (PCI, PCMCIA, etc...) */ sprintf(buf, "%d", (int)sc->ndis_iftype); ndis_add_sysctl(sc, "BusType", "Bus Type", buf, CTLFLAG_RD); if (sc->ndis_res_io != NULL) { sprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io)); ndis_add_sysctl(sc, "IOBaseAddress", "Base I/O Address", buf, CTLFLAG_RD); } if (sc->ndis_irq != NULL) { sprintf(buf, "%lu", rman_get_start(sc->ndis_irq)); ndis_add_sysctl(sc, "InterruptNumber", "Interrupt Number", buf, CTLFLAG_RD); } return(0); } int ndis_add_sysctl(arg, key, desc, val, flag) void *arg; char *key; char *desc; char *val; int flag; { struct ndis_softc *sc; struct ndis_cfglist *cfg; char descstr[256]; sc = arg; cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO); if (cfg == NULL) return(ENOMEM); cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF); if (desc == NULL) { snprintf(descstr, sizeof(descstr), "%s (dynamic)", key); cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF); } else cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF); strcpy(cfg->ndis_cfg.nc_val, val); TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link); #if __FreeBSD_version < 502113 SYSCTL_ADD_STRING(&sc->ndis_ctx, SYSCTL_CHILDREN(sc->ndis_tree), #else SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)), #endif OID_AUTO, cfg->ndis_cfg.nc_cfgkey, flag, cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val), cfg->ndis_cfg.nc_cfgdesc); return(0); } int ndis_flush_sysctls(arg) void *arg; { struct ndis_softc *sc; struct ndis_cfglist *cfg; sc = arg; while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) { cfg = TAILQ_FIRST(&sc->ndis_cfglist_head); TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link); free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF); free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF); free(cfg, M_DEVBUF); } return(0); } static void ndis_return(dpc, arg, sysarg1, sysarg2) kdpc *dpc; void *arg; void *sysarg1; void *sysarg2; { struct ndis_softc *sc; ndis_return_handler returnfunc; ndis_handle adapter; ndis_packet *p; uint8_t irql; p = arg; sc = p->np_softc; adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL) return; returnfunc = sc->ndis_chars->nmc_return_packet_func; KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); MSCALL2(returnfunc, adapter, p); KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return; } void ndis_return_packet(buf, arg) void *buf; /* not used */ void *arg; { ndis_packet *p; if (arg == NULL) return; p = arg; /* Decrement refcount. */ p->np_refcnt--; /* Release packet when refcount hits zero, otherwise return. */ if (p->np_refcnt) return; KeInitializeDpc(&p->np_dpc, kernndis_functbl[7].ipt_wrap, p); KeInsertQueueDpc(&p->np_dpc, NULL, NULL); return; } void ndis_free_bufs(b0) ndis_buffer *b0; { ndis_buffer *next; if (b0 == NULL) return; while(b0 != NULL) { next = b0->mdl_next; IoFreeMdl(b0); b0 = next; } return; } int in_reset = 0; void ndis_free_packet(p) ndis_packet *p; { if (p == NULL) return; ndis_free_bufs(p->np_private.npp_head); NdisFreePacket(p); return; } int ndis_convert_res(arg) void *arg; { struct ndis_softc *sc; ndis_resource_list *rl = NULL; cm_partial_resource_desc *prd = NULL; ndis_miniport_block *block; device_t dev; struct resource_list *brl; struct resource_list_entry *brle; #if __FreeBSD_version < 600022 struct resource_list brl_rev; struct resource_list_entry *n; #endif int error = 0; sc = arg; block = sc->ndis_block; dev = sc->ndis_dev; #if __FreeBSD_version < 600022 SLIST_INIT(&brl_rev); #endif rl = malloc(sizeof(ndis_resource_list) + (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)), M_DEVBUF, M_NOWAIT|M_ZERO); if (rl == NULL) return(ENOMEM); rl->cprl_version = 5; rl->cprl_version = 1; rl->cprl_count = sc->ndis_rescnt; prd = rl->cprl_partial_descs; brl = BUS_GET_RESOURCE_LIST(dev, dev); if (brl != NULL) { #if __FreeBSD_version < 600022 /* * We have a small problem. Some PCI devices have * multiple I/O ranges. Windows orders them starting * from lowest numbered BAR to highest. We discover * them in that order too, but insert them into a singly * linked list head first, which means when time comes * to traverse the list, we enumerate them in reverse * order. This screws up some drivers which expect the * BARs to be in ascending order so that they can choose * the "first" one as their register space. Unfortunately, * in order to fix this, we have to create our own * temporary list with the entries in reverse order. */ SLIST_FOREACH(brle, brl, link) { n = malloc(sizeof(struct resource_list_entry), M_TEMP, M_NOWAIT); if (n == NULL) { error = ENOMEM; goto bad; } bcopy((char *)brle, (char *)n, sizeof(struct resource_list_entry)); SLIST_INSERT_HEAD(&brl_rev, n, link); } SLIST_FOREACH(brle, &brl_rev, link) { #else STAILQ_FOREACH(brle, brl, link) { #endif switch (brle->type) { case SYS_RES_IOPORT: prd->cprd_type = CmResourceTypePort; prd->cprd_flags = CM_RESOURCE_PORT_IO; prd->cprd_sharedisp = CmResourceShareDeviceExclusive; prd->u.cprd_port.cprd_start.np_quad = brle->start; prd->u.cprd_port.cprd_len = brle->count; break; case SYS_RES_MEMORY: prd->cprd_type = CmResourceTypeMemory; prd->cprd_flags = CM_RESOURCE_MEMORY_READ_WRITE; prd->cprd_sharedisp = CmResourceShareDeviceExclusive; prd->u.cprd_port.cprd_start.np_quad = brle->start; prd->u.cprd_port.cprd_len = brle->count; break; case SYS_RES_IRQ: prd->cprd_type = CmResourceTypeInterrupt; prd->cprd_flags = 0; prd->cprd_sharedisp = CmResourceShareDeviceExclusive; prd->u.cprd_intr.cprd_level = brle->start; prd->u.cprd_intr.cprd_vector = brle->start; prd->u.cprd_intr.cprd_affinity = 0; break; default: break; } prd++; } } block->nmb_rlist = rl; #if __FreeBSD_version < 600022 bad: while (!SLIST_EMPTY(&brl_rev)) { n = SLIST_FIRST(&brl_rev); SLIST_REMOVE_HEAD(&brl_rev, link); free (n, M_TEMP); } #endif return(error); } /* * Map an NDIS packet to an mbuf list. When an NDIS driver receives a * packet, it will hand it to us in the form of an ndis_packet, * which we need to convert to an mbuf that is then handed off * to the stack. Note: we configure the mbuf list so that it uses * the memory regions specified by the ndis_buffer structures in * the ndis_packet as external storage. In most cases, this will * point to a memory region allocated by the driver (either by * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect * the driver to handle free()ing this region for is, so we set up * a dummy no-op free handler for it. */ int ndis_ptom(m0, p) struct mbuf **m0; ndis_packet *p; { struct mbuf *m, *prev = NULL; ndis_buffer *buf; ndis_packet_private *priv; uint32_t totlen = 0; if (p == NULL || m0 == NULL) return(EINVAL); priv = &p->np_private; buf = priv->npp_head; p->np_refcnt = 0; for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) { if (buf == priv->npp_head) MGETHDR(m, M_DONTWAIT, MT_HEADER); else MGET(m, M_DONTWAIT, MT_DATA); if (m == NULL) { m_freem(*m0); *m0 = NULL; return(ENOBUFS); } m->m_len = MmGetMdlByteCount(buf); m->m_data = MmGetMdlVirtualAddress(buf); MEXTADD(m, m->m_data, m->m_len, ndis_return_packet, p, 0, EXT_NDIS); p->np_refcnt++; totlen += m->m_len; if (m->m_flags & M_PKTHDR) *m0 = m; else prev->m_next = m; prev = m; } (*m0)->m_pkthdr.len = totlen; return(0); } /* * Create an NDIS packet from an mbuf chain. * This is used mainly when transmitting packets, where we need * to turn an mbuf off an interface's send queue and transform it * into an NDIS packet which will be fed into the NDIS driver's * send routine. * * NDIS packets consist of two parts: an ndis_packet structure, * which is vaguely analagous to the pkthdr portion of an mbuf, * and one or more ndis_buffer structures, which define the * actual memory segments in which the packet data resides. * We need to allocate one ndis_buffer for each mbuf in a chain, * plus one ndis_packet as the header. */ int ndis_mtop(m0, p) struct mbuf *m0; ndis_packet **p; { struct mbuf *m; ndis_buffer *buf = NULL, *prev = NULL; ndis_packet_private *priv; if (p == NULL || *p == NULL || m0 == NULL) return(EINVAL); priv = &(*p)->np_private; priv->npp_totlen = m0->m_pkthdr.len; for (m = m0; m != NULL; m = m->m_next) { if (m->m_len == 0) continue; buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL); if (buf == NULL) { ndis_free_packet(*p); *p = NULL; return(ENOMEM); } if (priv->npp_head == NULL) priv->npp_head = buf; else prev->mdl_next = buf; prev = buf; } priv->npp_tail = buf; return(0); } int ndis_get_supported_oids(arg, oids, oidcnt) void *arg; ndis_oid **oids; int *oidcnt; { int len, rval; ndis_oid *o; if (arg == NULL || oids == NULL || oidcnt == NULL) return(EINVAL); len = 0; ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len); o = malloc(len, M_DEVBUF, M_NOWAIT); if (o == NULL) return(ENOMEM); rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len); if (rval) { free(o, M_DEVBUF); return(rval); } *oids = o; *oidcnt = len / 4; return(0); } int ndis_set_info(arg, oid, buf, buflen) void *arg; ndis_oid oid; void *buf; int *buflen; { struct ndis_softc *sc; ndis_status rval; ndis_handle adapter; ndis_setinfo_handler setfunc; uint32_t byteswritten = 0, bytesneeded = 0; int error; uint8_t irql; /* * According to the NDIS spec, MiniportQueryInformation() * and MiniportSetInformation() requests are handled serially: * once one request has been issued, we must wait for it to * finish before allowing another request to proceed. */ sc = arg; KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); if (sc->ndis_block->nmb_pendingreq != NULL) panic("ndis_set_info() called while other request pending"); else sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; NDIS_LOCK(sc); setfunc = sc->ndis_chars->nmc_setinfo_func; adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL || setfunc == NULL || sc->ndis_block->nmb_devicectx == NULL) { sc->ndis_block->nmb_pendingreq = NULL; NDIS_UNLOCK(sc); KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return(ENXIO); } NDIS_UNLOCK(sc); rval = MSCALL6(setfunc, adapter, oid, buf, *buflen, &byteswritten, &bytesneeded); sc->ndis_block->nmb_pendingreq = NULL; KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); if (rval == NDIS_STATUS_PENDING) { mtx_lock(&ndis_req_mtx); error = msleep(&sc->ndis_block->nmb_setstat, &ndis_req_mtx, curthread->td_priority|PDROP, "ndisset", 5 * hz); rval = sc->ndis_block->nmb_setstat; } if (byteswritten) *buflen = byteswritten; if (bytesneeded) *buflen = bytesneeded; if (rval == NDIS_STATUS_INVALID_LENGTH) return(ENOSPC); if (rval == NDIS_STATUS_INVALID_OID) return(EINVAL); if (rval == NDIS_STATUS_NOT_SUPPORTED || rval == NDIS_STATUS_NOT_ACCEPTED) return(ENOTSUP); if (rval != NDIS_STATUS_SUCCESS) return(ENODEV); return(0); } typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status); int ndis_send_packets(arg, packets, cnt) void *arg; ndis_packet **packets; int cnt; { struct ndis_softc *sc; ndis_handle adapter; ndis_sendmulti_handler sendfunc; ndis_senddone_func senddonefunc; int i; ndis_packet *p; uint8_t irql; sc = arg; adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL) return(ENXIO); sendfunc = sc->ndis_chars->nmc_sendmulti_func; senddonefunc = sc->ndis_block->nmb_senddone_func; if (NDIS_SERIALIZED(sc->ndis_block)) KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); MSCALL3(sendfunc, adapter, packets, cnt); for (i = 0; i < cnt; i++) { p = packets[i]; /* * Either the driver already handed the packet to * ndis_txeof() due to a failure, or it wants to keep * it and release it asynchronously later. Skip to the * next one. */ if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING) continue; MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status); } if (NDIS_SERIALIZED(sc->ndis_block)) KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return(0); } int ndis_send_packet(arg, packet) void *arg; ndis_packet *packet; { struct ndis_softc *sc; ndis_handle adapter; ndis_status status; ndis_sendsingle_handler sendfunc; ndis_senddone_func senddonefunc; uint8_t irql; sc = arg; adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL) return(ENXIO); sendfunc = sc->ndis_chars->nmc_sendsingle_func; senddonefunc = sc->ndis_block->nmb_senddone_func; if (NDIS_SERIALIZED(sc->ndis_block)) KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); status = MSCALL3(sendfunc, adapter, packet, packet->np_private.npp_flags); if (status == NDIS_STATUS_PENDING) { if (NDIS_SERIALIZED(sc->ndis_block)) KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return(0); } MSCALL3(senddonefunc, sc->ndis_block, packet, status); if (NDIS_SERIALIZED(sc->ndis_block)) KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return(0); } int ndis_init_dma(arg) void *arg; { struct ndis_softc *sc; int i, error; sc = arg; sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts, M_DEVBUF, M_NOWAIT|M_ZERO); if (sc->ndis_tmaps == NULL) return(ENOMEM); for (i = 0; i < sc->ndis_maxpkts; i++) { error = bus_dmamap_create(sc->ndis_ttag, 0, &sc->ndis_tmaps[i]); if (error) { free(sc->ndis_tmaps, M_DEVBUF); return(ENODEV); } } return(0); } int ndis_destroy_dma(arg) void *arg; { struct ndis_softc *sc; struct mbuf *m; ndis_packet *p = NULL; int i; sc = arg; for (i = 0; i < sc->ndis_maxpkts; i++) { if (sc->ndis_txarray[i] != NULL) { p = sc->ndis_txarray[i]; m = (struct mbuf *)p->np_rsvd[1]; if (m != NULL) m_freem(m); ndis_free_packet(sc->ndis_txarray[i]); } bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]); } free(sc->ndis_tmaps, M_DEVBUF); bus_dma_tag_destroy(sc->ndis_ttag); return(0); } int ndis_reset_nic(arg) void *arg; { struct ndis_softc *sc; ndis_handle adapter; ndis_reset_handler resetfunc; uint8_t addressing_reset; int rval; uint8_t irql; sc = arg; NDIS_LOCK(sc); adapter = sc->ndis_block->nmb_miniportadapterctx; resetfunc = sc->ndis_chars->nmc_reset_func; if (adapter == NULL || resetfunc == NULL || sc->ndis_block->nmb_devicectx == NULL) { NDIS_UNLOCK(sc); return(EIO); } NDIS_UNLOCK(sc); if (NDIS_SERIALIZED(sc->ndis_block)) KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); rval = MSCALL2(resetfunc, &addressing_reset, adapter); if (NDIS_SERIALIZED(sc->ndis_block)) KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); if (rval == NDIS_STATUS_PENDING) { mtx_lock(&ndis_req_mtx); msleep(sc, &ndis_req_mtx, curthread->td_priority|PDROP, "ndisrst", 0); } return(0); } #define NDIS_REAP_TIMERS int ndis_halt_nic(arg) void *arg; { struct ndis_softc *sc; ndis_handle adapter; ndis_halt_handler haltfunc; #ifdef NDIS_REAP_TIMERS ndis_miniport_timer *t, *n; #endif sc = arg; #ifdef NDIS_REAP_TIMERS /* * Drivers are sometimes very lax about cancelling all * their timers. Cancel them all ourselves, just to be * safe. We must do this before invoking MiniportHalt(), * since if we wait until after, the memory in which * the timers reside will no longer be valid. */ t = sc->ndis_block->nmb_timerlist; while (t != NULL) { KeCancelTimer(&t->nmt_ktimer); n = t; t = t->nmt_nexttimer; n->nmt_nexttimer = NULL; } sc->ndis_block->nmb_timerlist = NULL; if (!cold) KeFlushQueuedDpcs(); #endif NDIS_LOCK(sc); adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL) { NDIS_UNLOCK(sc); return(EIO); } sc->ndis_block->nmb_miniportadapterctx = NULL; sc->ndis_block->nmb_devicectx = NULL; /* * The adapter context is only valid after the init * handler has been called, and is invalid once the * halt handler has been called. */ haltfunc = sc->ndis_chars->nmc_halt_func; NDIS_UNLOCK(sc); MSCALL1(haltfunc, adapter); return(0); } int ndis_shutdown_nic(arg) void *arg; { struct ndis_softc *sc; ndis_handle adapter; ndis_shutdown_handler shutdownfunc; sc = arg; NDIS_LOCK(sc); adapter = sc->ndis_block->nmb_miniportadapterctx; shutdownfunc = sc->ndis_chars->nmc_shutdown_handler; NDIS_UNLOCK(sc); if (adapter == NULL || shutdownfunc == NULL) return(EIO); if (sc->ndis_chars->nmc_rsvd0 == NULL) MSCALL1(shutdownfunc, adapter); else MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0); TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); return(0); } int ndis_init_nic(arg) void *arg; { struct ndis_softc *sc; ndis_miniport_block *block; ndis_init_handler initfunc; ndis_status status, openstatus = 0; ndis_medium mediumarray[NdisMediumMax]; uint32_t chosenmedium, i; if (arg == NULL) return(EINVAL); sc = arg; NDIS_LOCK(sc); block = sc->ndis_block; initfunc = sc->ndis_chars->nmc_init_func; NDIS_UNLOCK(sc); sc->ndis_block->nmb_timerlist = NULL; for (i = 0; i < NdisMediumMax; i++) mediumarray[i] = i; status = MSCALL6(initfunc, &openstatus, &chosenmedium, mediumarray, NdisMediumMax, block, block); /* * If the init fails, blow away the other exported routines * we obtained from the driver so we can't call them later. * If the init failed, none of these will work. */ if (status != NDIS_STATUS_SUCCESS) { NDIS_LOCK(sc); sc->ndis_block->nmb_miniportadapterctx = NULL; NDIS_UNLOCK(sc); return(ENXIO); } /* * This may look really goofy, but apparently it is possible * to halt a miniport too soon after it's been initialized. * After MiniportInitialize() finishes, pause for 1 second * to give the chip a chance to handle any short-lived timers * that were set in motion. If we call MiniportHalt() too soon, * some of the timers may not be cancelled, because the driver * expects them to fire before the halt is called. */ ndis_thsuspend(curthread->td_proc, NULL, hz); NDIS_LOCK(sc); sc->ndis_block->nmb_devicectx = sc; NDIS_UNLOCK(sc); return(0); } void ndis_enable_intr(arg) void *arg; { struct ndis_softc *sc; ndis_handle adapter; ndis_enable_interrupts_handler intrenbfunc; sc = arg; adapter = sc->ndis_block->nmb_miniportadapterctx; intrenbfunc = sc->ndis_chars->nmc_enable_interrupts_func; if (adapter == NULL || intrenbfunc == NULL) return; MSCALL1(intrenbfunc, adapter); return; } void ndis_disable_intr(arg) void *arg; { struct ndis_softc *sc; ndis_handle adapter; ndis_disable_interrupts_handler intrdisfunc; sc = arg; adapter = sc->ndis_block->nmb_miniportadapterctx; intrdisfunc = sc->ndis_chars->nmc_disable_interrupts_func; if (adapter == NULL || intrdisfunc == NULL) return; MSCALL1(intrdisfunc, adapter); return; } int ndis_isr(arg, ourintr, callhandler) void *arg; int *ourintr; int *callhandler; { struct ndis_softc *sc; ndis_handle adapter; ndis_isr_handler isrfunc; uint8_t accepted, queue; if (arg == NULL || ourintr == NULL || callhandler == NULL) return(EINVAL); sc = arg; adapter = sc->ndis_block->nmb_miniportadapterctx; isrfunc = sc->ndis_chars->nmc_isr_func; if (adapter == NULL || isrfunc == NULL) return(ENXIO); MSCALL3(isrfunc, &accepted, &queue, adapter); *ourintr = accepted; *callhandler = queue; return(0); } static void ndis_intrhand(dpc, dobj, ip, sc) kdpc *dpc; device_object *dobj; irp *ip; struct ndis_softc *sc; { ndis_handle adapter; ndis_interrupt_handler intrfunc; uint8_t irql; adapter = sc->ndis_block->nmb_miniportadapterctx; intrfunc = sc->ndis_chars->nmc_interrupt_func; if (adapter == NULL || intrfunc == NULL) return; if (NDIS_SERIALIZED(sc->ndis_block)) KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); MSCALL1(intrfunc, adapter); /* If there's a MiniportEnableInterrupt() routine, call it. */ ndis_enable_intr(sc); if (NDIS_SERIALIZED(sc->ndis_block)) KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return; } int ndis_get_info(arg, oid, buf, buflen) void *arg; ndis_oid oid; void *buf; int *buflen; { struct ndis_softc *sc; ndis_status rval; ndis_handle adapter; ndis_queryinfo_handler queryfunc; uint32_t byteswritten = 0, bytesneeded = 0; int error; uint8_t irql; sc = arg; KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql); if (sc->ndis_block->nmb_pendingreq != NULL) panic("ndis_get_info() called while other request pending"); else sc->ndis_block->nmb_pendingreq = (ndis_request *)sc; NDIS_LOCK(sc); queryfunc = sc->ndis_chars->nmc_queryinfo_func; adapter = sc->ndis_block->nmb_miniportadapterctx; if (adapter == NULL || queryfunc == NULL || sc->ndis_block->nmb_devicectx == NULL) { sc->ndis_block->nmb_pendingreq = NULL; NDIS_UNLOCK(sc); KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); return(ENXIO); } NDIS_UNLOCK(sc); rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen, &byteswritten, &bytesneeded); sc->ndis_block->nmb_pendingreq = NULL; KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql); /* Wait for requests that block. */ if (rval == NDIS_STATUS_PENDING) { mtx_lock(&ndis_req_mtx); error = msleep(&sc->ndis_block->nmb_getstat, &ndis_req_mtx, curthread->td_priority|PDROP, "ndisget", 5 * hz); rval = sc->ndis_block->nmb_getstat; } if (byteswritten) *buflen = byteswritten; if (bytesneeded) *buflen = bytesneeded; if (rval == NDIS_STATUS_INVALID_LENGTH || rval == NDIS_STATUS_BUFFER_TOO_SHORT) return(ENOSPC); if (rval == NDIS_STATUS_INVALID_OID) return(EINVAL); if (rval == NDIS_STATUS_NOT_SUPPORTED || rval == NDIS_STATUS_NOT_ACCEPTED) return(ENOTSUP); if (rval != NDIS_STATUS_SUCCESS) return(ENODEV); return(0); } uint32_t NdisAddDevice(drv, pdo) driver_object *drv; device_object *pdo; { device_object *fdo; ndis_miniport_block *block; struct ndis_softc *sc; uint32_t status; status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL, FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo); if (status != STATUS_SUCCESS) return(status); block = fdo->do_devext; block->nmb_filterdbs.nf_ethdb = block; block->nmb_deviceobj = fdo; block->nmb_physdeviceobj = pdo; block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo); KeInitializeSpinLock(&block->nmb_lock); /* * Stash pointers to the miniport block and miniport * characteristics info in the if_ndis softc so the * UNIX wrapper driver can get to them later. */ sc = device_get_softc(pdo->do_devext); sc->ndis_block = block; sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1); /* * If the driver has a MiniportTransferData() function, * we should allocate a private RX packet pool. */ if (sc->ndis_chars->nmc_transferdata_func != NULL) { NdisAllocatePacketPool(&status, &block->nmb_rxpool, 32, PROTOCOL_RESERVED_SIZE_IN_PACKET); if (status != NDIS_STATUS_SUCCESS) { IoDetachDevice(block->nmb_nextdeviceobj); IoDeleteDevice(fdo); return(status); } INIT_LIST_HEAD((&block->nmb_packetlist)); } /* Give interrupt handling priority over timers. */ IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap); KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH); /* Finish up BSD-specific setup. */ block->nmb_signature = (void *)0xcafebabe; block->nmb_status_func = kernndis_functbl[0].ipt_wrap; block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap; block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap; block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap; block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap; block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap; block->nmb_pendingreq = NULL; TAILQ_INSERT_TAIL(&ndis_devhead, block, link); return (STATUS_SUCCESS); } int ndis_unload_driver(arg) void *arg; { struct ndis_softc *sc; device_object *fdo; sc = arg; if (sc->ndis_block->nmb_rlist != NULL) free(sc->ndis_block->nmb_rlist, M_DEVBUF); ndis_flush_sysctls(sc); TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link); if (sc->ndis_chars->nmc_transferdata_func != NULL) NdisFreePacketPool(sc->ndis_block->nmb_rxpool); fdo = sc->ndis_block->nmb_deviceobj; IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj); IoDeleteDevice(fdo); return(0); }