diff options
Diffstat (limited to 'sys/dev/nve/if_nve.c')
| -rw-r--r-- | sys/dev/nve/if_nve.c | 1791 |
1 files changed, 0 insertions, 1791 deletions
diff --git a/sys/dev/nve/if_nve.c b/sys/dev/nve/if_nve.c deleted file mode 100644 index 10147fc..0000000 --- a/sys/dev/nve/if_nve.c +++ /dev/null @@ -1,1791 +0,0 @@ -/*- - * Copyright (c) 2005 by David E. O'Brien <obrien@FreeBSD.org>. - * Copyright (c) 2003,2004 by Quinton Dolan <q@onthenet.com.au>. - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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. - * - * $Id: if_nv.c,v 1.19 2004/08/12 14:00:05 q Exp $ - */ -/* - * NVIDIA nForce MCP Networking Adapter driver - * - * This is a port of the NVIDIA MCP Linux ethernet driver distributed by NVIDIA - * through their web site. - * - * All mainstream nForce and nForce2 motherboards are supported. This module - * is as stable, sometimes more stable, than the linux version. (Recent - * Linux stability issues seem to be related to some issues with newer - * distributions using GCC 3.x, however this don't appear to effect FreeBSD - * 5.x). - * - * In accordance with the NVIDIA distribution license it is necessary to - * link this module against the nvlibnet.o binary object included in the - * Linux driver source distribution. The binary component is not modified in - * any way and is simply linked against a FreeBSD equivalent of the nvnet.c - * linux kernel module "wrapper". - * - * The Linux driver uses a common code API that is shared between Win32 and - * i386 Linux. This abstracts the low level driver functions and uses - * callbacks and hooks to access the underlying hardware device. By using - * this same API in a FreeBSD kernel module it is possible to support the - * hardware without breaching the Linux source distributions licensing - * requirements, or obtaining the hardware programming specifications. - * - * Although not conventional, it works, and given the relatively small - * amount of hardware centric code, it's hopefully no more buggy than its - * linux counterpart. - * - * NVIDIA now support the nForce3 AMD64 platform, however I have been - * unable to access such a system to verify support. However, the code is - * reported to work with little modification when compiled with the AMD64 - * version of the NVIDIA Linux library. All that should be necessary to make - * the driver work is to link it directly into the kernel, instead of as a - * module, and apply the docs/amd64.diff patch in this source distribution to - * the NVIDIA Linux driver source. - * - * This driver should work on all versions of FreeBSD since 4.9/5.1 as well - * as recent versions of DragonFly. - * - * Written by Quinton Dolan <q@onthenet.com.au> - * Portions based on existing FreeBSD network drivers. - * NVIDIA API usage derived from distributed NVIDIA NVNET driver source files. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/sockio.h> -#include <sys/mbuf.h> -#include <sys/malloc.h> -#include <sys/kernel.h> -#include <sys/socket.h> -#include <sys/sysctl.h> -#include <sys/queue.h> -#include <sys/module.h> - -#include <net/if.h> -#include <net/if_var.h> -#include <net/if_arp.h> -#include <net/ethernet.h> -#include <net/if_dl.h> -#include <net/if_media.h> -#include <net/if_types.h> -#include <net/bpf.h> -#include <net/if_vlan_var.h> - -#include <machine/bus.h> -#include <machine/resource.h> - -#include <vm/vm.h> /* for vtophys */ -#include <vm/pmap.h> /* for vtophys */ -#include <sys/bus.h> -#include <sys/rman.h> - -#include <dev/pci/pcireg.h> -#include <dev/pci/pcivar.h> -#include <dev/mii/mii.h> -#include <dev/mii/miivar.h> -#include "miibus_if.h" - -/* Include NVIDIA Linux driver header files */ -#include <contrib/dev/nve/nvenet_version.h> -#define linux -#include <contrib/dev/nve/basetype.h> -#include <contrib/dev/nve/phy.h> -#include "os+%DIKED-nve.h" -#include <contrib/dev/nve/drvinfo.h> -#include <contrib/dev/nve/adapter.h> -#undef linux - -#include <dev/nve/if_nvereg.h> - -MODULE_DEPEND(nve, pci, 1, 1, 1); -MODULE_DEPEND(nve, ether, 1, 1, 1); -MODULE_DEPEND(nve, miibus, 1, 1, 1); - -static int nve_probe(device_t); -static int nve_attach(device_t); -static int nve_detach(device_t); -static void nve_init(void *); -static void nve_init_locked(struct nve_softc *); -static void nve_stop(struct nve_softc *); -static int nve_shutdown(device_t); -static int nve_init_rings(struct nve_softc *); -static void nve_free_rings(struct nve_softc *); - -static void nve_ifstart(struct ifnet *); -static void nve_ifstart_locked(struct ifnet *); -static int nve_ioctl(struct ifnet *, u_long, caddr_t); -static void nve_intr(void *); -static void nve_tick(void *); -static void nve_setmulti(struct nve_softc *); -static void nve_watchdog(struct nve_softc *); -static void nve_update_stats(struct nve_softc *); - -static int nve_ifmedia_upd(struct ifnet *); -static void nve_ifmedia_upd_locked(struct ifnet *); -static void nve_ifmedia_sts(struct ifnet *, struct ifmediareq *); -static int nve_miibus_readreg(device_t, int, int); -static int nve_miibus_writereg(device_t, int, int, int); - -static void nve_dmamap_cb(void *, bus_dma_segment_t *, int, int); -static void nve_dmamap_tx_cb(void *, bus_dma_segment_t *, int, bus_size_t, int); - -static NV_API_CALL NV_SINT32 nve_osalloc(PNV_VOID, PMEMORY_BLOCK); -static NV_API_CALL NV_SINT32 nve_osfree(PNV_VOID, PMEMORY_BLOCK); -static NV_API_CALL NV_SINT32 nve_osallocex(PNV_VOID, PMEMORY_BLOCKEX); -static NV_API_CALL NV_SINT32 nve_osfreeex(PNV_VOID, PMEMORY_BLOCKEX); -static NV_API_CALL NV_SINT32 nve_osclear(PNV_VOID, PNV_VOID, NV_SINT32); -static NV_API_CALL NV_SINT32 nve_osdelay(PNV_VOID, NV_UINT32); -static NV_API_CALL NV_SINT32 nve_osallocrxbuf(PNV_VOID, PMEMORY_BLOCK, PNV_VOID *); -static NV_API_CALL NV_SINT32 nve_osfreerxbuf(PNV_VOID, PMEMORY_BLOCK, PNV_VOID); -static NV_API_CALL NV_SINT32 nve_ospackettx(PNV_VOID, PNV_VOID, NV_UINT32); -static NV_API_CALL NV_SINT32 nve_ospacketrx(PNV_VOID, PNV_VOID, NV_UINT32, NV_UINT8 *, NV_UINT8); -static NV_API_CALL NV_SINT32 nve_oslinkchg(PNV_VOID, NV_SINT32); -static NV_API_CALL NV_SINT32 nve_osalloctimer(PNV_VOID, PNV_VOID *); -static NV_API_CALL NV_SINT32 nve_osfreetimer(PNV_VOID, PNV_VOID); -static NV_API_CALL NV_SINT32 nve_osinittimer(PNV_VOID, PNV_VOID, PTIMER_FUNC, PNV_VOID); -static NV_API_CALL NV_SINT32 nve_ossettimer(PNV_VOID, PNV_VOID, NV_UINT32); -static NV_API_CALL NV_SINT32 nve_oscanceltimer(PNV_VOID, PNV_VOID); - -static NV_API_CALL NV_SINT32 nve_ospreprocpkt(PNV_VOID, PNV_VOID, PNV_VOID *, NV_UINT8 *, NV_UINT8); -static NV_API_CALL PNV_VOID nve_ospreprocpktnopq(PNV_VOID, PNV_VOID); -static NV_API_CALL NV_SINT32 nve_osindicatepkt(PNV_VOID, PNV_VOID *, NV_UINT32); -static NV_API_CALL NV_SINT32 nve_oslockalloc(PNV_VOID, NV_SINT32, PNV_VOID *); -static NV_API_CALL NV_SINT32 nve_oslockacquire(PNV_VOID, NV_SINT32, PNV_VOID); -static NV_API_CALL NV_SINT32 nve_oslockrelease(PNV_VOID, NV_SINT32, PNV_VOID); -static NV_API_CALL PNV_VOID nve_osreturnbufvirt(PNV_VOID, PNV_VOID); - -static device_method_t nve_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, nve_probe), - DEVMETHOD(device_attach, nve_attach), - DEVMETHOD(device_detach, nve_detach), - DEVMETHOD(device_shutdown, nve_shutdown), - - /* MII interface */ - DEVMETHOD(miibus_readreg, nve_miibus_readreg), - DEVMETHOD(miibus_writereg, nve_miibus_writereg), - - DEVMETHOD_END -}; - -static driver_t nve_driver = { - "nve", - nve_methods, - sizeof(struct nve_softc) -}; - -static devclass_t nve_devclass; - -static int nve_pollinterval = 0; -SYSCTL_INT(_hw, OID_AUTO, nve_pollinterval, CTLFLAG_RW, - &nve_pollinterval, 0, "delay between interface polls"); - -DRIVER_MODULE(nve, pci, nve_driver, nve_devclass, 0, 0); -DRIVER_MODULE(miibus, nve, miibus_driver, miibus_devclass, 0, 0); - -static struct nve_type nve_devs[] = { - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE_LAN, - "NVIDIA nForce MCP Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_LAN, - "NVIDIA nForce2 MCP2 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_400_LAN1, - "NVIDIA nForce2 400 MCP4 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_400_LAN2, - "NVIDIA nForce2 400 MCP5 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN1, - "NVIDIA nForce3 MCP3 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_250_LAN, - "NVIDIA nForce3 250 MCP6 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN4, - "NVIDIA nForce3 MCP7 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE4_LAN1, - "NVIDIA nForce4 CK804 MCP8 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE4_LAN2, - "NVIDIA nForce4 CK804 MCP9 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN1, - "NVIDIA nForce MCP04 Networking Adapter"}, // MCP10 - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN2, - "NVIDIA nForce MCP04 Networking Adapter"}, // MCP11 - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE430_LAN1, - "NVIDIA nForce 430 MCP12 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE430_LAN2, - "NVIDIA nForce 430 MCP13 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN1, - "NVIDIA nForce MCP55 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN2, - "NVIDIA nForce MCP55 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN1, - "NVIDIA nForce MCP61 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN2, - "NVIDIA nForce MCP61 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN3, - "NVIDIA nForce MCP61 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP61_LAN4, - "NVIDIA nForce MCP61 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN1, - "NVIDIA nForce MCP65 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN2, - "NVIDIA nForce MCP65 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN3, - "NVIDIA nForce MCP65 Networking Adapter"}, - {PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP65_LAN4, - "NVIDIA nForce MCP65 Networking Adapter"}, - {0, 0, NULL} -}; - -/* DMA MEM map callback function to get data segment physical address */ -static void -nve_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nsegs, int error) -{ - if (error) - return; - - KASSERT(nsegs == 1, - ("Too many DMA segments returned when mapping DMA memory")); - *(bus_addr_t *)arg = segs->ds_addr; -} - -/* DMA RX map callback function to get data segment physical address */ -static void -nve_dmamap_rx_cb(void *arg, bus_dma_segment_t * segs, int nsegs, - bus_size_t mapsize, int error) -{ - if (error) - return; - *(bus_addr_t *)arg = segs->ds_addr; -} - -/* - * DMA TX buffer callback function to allocate fragment data segment - * addresses - */ -static void -nve_dmamap_tx_cb(void *arg, bus_dma_segment_t * segs, int nsegs, bus_size_t mapsize, int error) -{ - struct nve_tx_desc *info; - - info = arg; - if (error) - return; - KASSERT(nsegs < NV_MAX_FRAGS, - ("Too many DMA segments returned when mapping mbuf")); - info->numfrags = nsegs; - bcopy(segs, info->frags, nsegs * sizeof(bus_dma_segment_t)); -} - -/* Probe for supported hardware ID's */ -static int -nve_probe(device_t dev) -{ - struct nve_type *t; - - t = nve_devs; - /* Check for matching PCI DEVICE ID's */ - while (t->name != NULL) { - if ((pci_get_vendor(dev) == t->vid_id) && - (pci_get_device(dev) == t->dev_id)) { - device_set_desc(dev, t->name); - return (BUS_PROBE_LOW_PRIORITY); - } - t++; - } - - return (ENXIO); -} - -/* Attach driver and initialise hardware for use */ -static int -nve_attach(device_t dev) -{ - u_char eaddr[ETHER_ADDR_LEN]; - struct nve_softc *sc; - struct ifnet *ifp; - OS_API *osapi; - ADAPTER_OPEN_PARAMS OpenParams; - int error = 0, i, rid; - - if (bootverbose) - device_printf(dev, "nvenetlib.o version %s\n", DRIVER_VERSION); - - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_attach - entry\n"); - - sc = device_get_softc(dev); - - /* Allocate mutex */ - mtx_init(&sc->mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, - MTX_DEF); - callout_init_mtx(&sc->stat_callout, &sc->mtx, 0); - - sc->dev = dev; - - /* Preinitialize data structures */ - bzero(&OpenParams, sizeof(ADAPTER_OPEN_PARAMS)); - - /* Enable bus mastering */ - pci_enable_busmaster(dev); - - /* Allocate memory mapped address space */ - rid = NV_RID; - sc->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, - RF_ACTIVE); - - if (sc->res == NULL) { - device_printf(dev, "couldn't map memory\n"); - error = ENXIO; - goto fail; - } - sc->sc_st = rman_get_bustag(sc->res); - sc->sc_sh = rman_get_bushandle(sc->res); - - /* Allocate interrupt */ - rid = 0; - sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, - RF_SHAREABLE | RF_ACTIVE); - - if (sc->irq == NULL) { - device_printf(dev, "couldn't map interrupt\n"); - error = ENXIO; - goto fail; - } - /* Allocate DMA tags */ - error = bus_dma_tag_create(bus_get_dma_tag(dev), - 4, 0, BUS_SPACE_MAXADDR_32BIT, - BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES * NV_MAX_FRAGS, - NV_MAX_FRAGS, MCLBYTES, 0, - busdma_lock_mutex, &Giant, - &sc->mtag); - if (error) { - device_printf(dev, "couldn't allocate dma tag\n"); - goto fail; - } - error = bus_dma_tag_create(bus_get_dma_tag(dev), - 4, 0, BUS_SPACE_MAXADDR_32BIT, - BUS_SPACE_MAXADDR, NULL, NULL, - sizeof(struct nve_rx_desc) * RX_RING_SIZE, 1, - sizeof(struct nve_rx_desc) * RX_RING_SIZE, 0, - busdma_lock_mutex, &Giant, - &sc->rtag); - if (error) { - device_printf(dev, "couldn't allocate dma tag\n"); - goto fail; - } - error = bus_dma_tag_create(bus_get_dma_tag(dev), - 4, 0, BUS_SPACE_MAXADDR_32BIT, - BUS_SPACE_MAXADDR, NULL, NULL, - sizeof(struct nve_tx_desc) * TX_RING_SIZE, 1, - sizeof(struct nve_tx_desc) * TX_RING_SIZE, 0, - busdma_lock_mutex, &Giant, - &sc->ttag); - if (error) { - device_printf(dev, "couldn't allocate dma tag\n"); - goto fail; - } - /* Allocate DMA safe memory and get the DMA addresses. */ - error = bus_dmamem_alloc(sc->ttag, (void **)&sc->tx_desc, - BUS_DMA_WAITOK, &sc->tmap); - if (error) { - device_printf(dev, "couldn't allocate dma memory\n"); - goto fail; - } - bzero(sc->tx_desc, sizeof(struct nve_tx_desc) * TX_RING_SIZE); - error = bus_dmamap_load(sc->ttag, sc->tmap, sc->tx_desc, - sizeof(struct nve_tx_desc) * TX_RING_SIZE, nve_dmamap_cb, - &sc->tx_addr, 0); - if (error) { - device_printf(dev, "couldn't map dma memory\n"); - goto fail; - } - error = bus_dmamem_alloc(sc->rtag, (void **)&sc->rx_desc, - BUS_DMA_WAITOK, &sc->rmap); - if (error) { - device_printf(dev, "couldn't allocate dma memory\n"); - goto fail; - } - bzero(sc->rx_desc, sizeof(struct nve_rx_desc) * RX_RING_SIZE); - error = bus_dmamap_load(sc->rtag, sc->rmap, sc->rx_desc, - sizeof(struct nve_rx_desc) * RX_RING_SIZE, nve_dmamap_cb, - &sc->rx_addr, 0); - if (error) { - device_printf(dev, "couldn't map dma memory\n"); - goto fail; - } - /* Initialize rings. */ - if (nve_init_rings(sc)) { - device_printf(dev, "failed to init rings\n"); - error = ENXIO; - goto fail; - } - /* Setup NVIDIA API callback routines */ - osapi = &sc->osapi; - osapi->pOSCX = sc; - osapi->pfnAllocMemory = nve_osalloc; - osapi->pfnFreeMemory = nve_osfree; - osapi->pfnAllocMemoryEx = nve_osallocex; - osapi->pfnFreeMemoryEx = nve_osfreeex; - osapi->pfnClearMemory = nve_osclear; - osapi->pfnStallExecution = nve_osdelay; - osapi->pfnAllocReceiveBuffer = nve_osallocrxbuf; - osapi->pfnFreeReceiveBuffer = nve_osfreerxbuf; - osapi->pfnPacketWasSent = nve_ospackettx; - osapi->pfnPacketWasReceived = nve_ospacketrx; - osapi->pfnLinkStateHasChanged = nve_oslinkchg; - osapi->pfnAllocTimer = nve_osalloctimer; - osapi->pfnFreeTimer = nve_osfreetimer; - osapi->pfnInitializeTimer = nve_osinittimer; - osapi->pfnSetTimer = nve_ossettimer; - osapi->pfnCancelTimer = nve_oscanceltimer; - osapi->pfnPreprocessPacket = nve_ospreprocpkt; - osapi->pfnPreprocessPacketNopq = nve_ospreprocpktnopq; - osapi->pfnIndicatePackets = nve_osindicatepkt; - osapi->pfnLockAlloc = nve_oslockalloc; - osapi->pfnLockAcquire = nve_oslockacquire; - osapi->pfnLockRelease = nve_oslockrelease; - osapi->pfnReturnBufferVirtual = nve_osreturnbufvirt; - - sc->linkup = FALSE; - sc->max_frame_size = ETHERMTU + ETHER_HDR_LEN + FCS_LEN; - - /* TODO - We don't support hardware offload yet */ - sc->hwmode = 1; - sc->media = 0; - - /* Set NVIDIA API startup parameters */ - OpenParams.MaxDpcLoop = 2; - OpenParams.MaxRxPkt = RX_RING_SIZE; - OpenParams.MaxTxPkt = TX_RING_SIZE; - OpenParams.SentPacketStatusSuccess = 1; - OpenParams.SentPacketStatusFailure = 0; - OpenParams.MaxRxPktToAccumulate = 6; - OpenParams.ulPollInterval = nve_pollinterval; - OpenParams.SetForcedModeEveryNthRxPacket = 0; - OpenParams.SetForcedModeEveryNthTxPacket = 0; - OpenParams.RxForcedInterrupt = 0; - OpenParams.TxForcedInterrupt = 0; - OpenParams.pOSApi = osapi; - OpenParams.pvHardwareBaseAddress = rman_get_virtual(sc->res); - OpenParams.bASFEnabled = 0; - OpenParams.ulDescriptorVersion = sc->hwmode; - OpenParams.ulMaxPacketSize = sc->max_frame_size; - OpenParams.DeviceId = pci_get_device(dev); - - /* Open NVIDIA Hardware API */ - error = ADAPTER_Open(&OpenParams, (void **)&(sc->hwapi), &sc->phyaddr); - if (error) { - device_printf(dev, - "failed to open NVIDIA Hardware API: 0x%x\n", error); - goto fail; - } - - /* TODO - Add support for MODE2 hardware offload */ - - bzero(&sc->adapterdata, sizeof(sc->adapterdata)); - - sc->adapterdata.ulMediaIF = sc->media; - sc->adapterdata.ulModeRegTxReadCompleteEnable = 1; - sc->hwapi->pfnSetCommonData(sc->hwapi->pADCX, &sc->adapterdata); - - /* MAC is loaded backwards into h/w reg */ - sc->hwapi->pfnGetNodeAddress(sc->hwapi->pADCX, sc->original_mac_addr); - for (i = 0; i < 6; i++) { - eaddr[i] = sc->original_mac_addr[5 - i]; - } - sc->hwapi->pfnSetNodeAddress(sc->hwapi->pADCX, eaddr); - - /* Display ethernet address ,... */ - device_printf(dev, "Ethernet address %6D\n", eaddr, ":"); - - /* Allocate interface structures */ - ifp = sc->ifp = if_alloc(IFT_ETHER); - if (ifp == NULL) { - device_printf(dev, "can not if_alloc()\n"); - error = ENOSPC; - goto fail; - } - - /* Setup interface parameters */ - ifp->if_softc = sc; - if_initname(ifp, device_get_name(dev), device_get_unit(dev)); - ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; - ifp->if_ioctl = nve_ioctl; - ifp->if_start = nve_ifstart; - ifp->if_init = nve_init; - ifp->if_baudrate = IF_Mbps(100); - IFQ_SET_MAXLEN(&ifp->if_snd, TX_RING_SIZE - 1); - ifp->if_snd.ifq_drv_maxlen = TX_RING_SIZE - 1; - IFQ_SET_READY(&ifp->if_snd); - ifp->if_capabilities |= IFCAP_VLAN_MTU; - ifp->if_capenable |= IFCAP_VLAN_MTU; - - /* Attach device for MII interface to PHY */ - DEBUGOUT(NVE_DEBUG_INIT, "nve: do mii_attach\n"); - error = mii_attach(dev, &sc->miibus, ifp, nve_ifmedia_upd, - nve_ifmedia_sts, BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0); - if (error != 0) { - device_printf(dev, "attaching PHYs failed\n"); - goto fail; - } - - /* Attach to OS's managers. */ - ether_ifattach(ifp, eaddr); - - /* Activate our interrupt handler. - attach last to avoid lock */ - error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, - NULL, nve_intr, sc, &sc->sc_ih); - if (error) { - device_printf(dev, "couldn't set up interrupt handler\n"); - goto fail; - } - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_attach - exit\n"); - -fail: - if (error) - nve_detach(dev); - - return (error); -} - -/* Detach interface for module unload */ -static int -nve_detach(device_t dev) -{ - struct nve_softc *sc = device_get_softc(dev); - struct ifnet *ifp; - - KASSERT(mtx_initialized(&sc->mtx), ("mutex not initialized")); - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: nve_detach - entry\n"); - - ifp = sc->ifp; - - if (device_is_attached(dev)) { - ether_ifdetach(ifp); - NVE_LOCK(sc); - nve_stop(sc); - NVE_UNLOCK(sc); - callout_drain(&sc->stat_callout); - } - - if (sc->miibus) - device_delete_child(dev, sc->miibus); - bus_generic_detach(dev); - - /* Reload unreversed address back into MAC in original state */ - if (sc->original_mac_addr) - sc->hwapi->pfnSetNodeAddress(sc->hwapi->pADCX, - sc->original_mac_addr); - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: do pfnClose\n"); - /* Detach from NVIDIA hardware API */ - if (sc->hwapi->pfnClose) - sc->hwapi->pfnClose(sc->hwapi->pADCX, FALSE); - /* Release resources */ - if (sc->sc_ih) - bus_teardown_intr(sc->dev, sc->irq, sc->sc_ih); - if (sc->irq) - bus_release_resource(sc->dev, SYS_RES_IRQ, 0, sc->irq); - if (sc->res) - bus_release_resource(sc->dev, SYS_RES_MEMORY, NV_RID, sc->res); - - nve_free_rings(sc); - - if (sc->tx_desc) { - bus_dmamap_unload(sc->rtag, sc->rmap); - bus_dmamem_free(sc->rtag, sc->rx_desc, sc->rmap); - bus_dmamap_destroy(sc->rtag, sc->rmap); - } - if (sc->mtag) - bus_dma_tag_destroy(sc->mtag); - if (sc->ttag) - bus_dma_tag_destroy(sc->ttag); - if (sc->rtag) - bus_dma_tag_destroy(sc->rtag); - - if (ifp) - if_free(ifp); - mtx_destroy(&sc->mtx); - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: nve_detach - exit\n"); - - return (0); -} - -/* Initialise interface and start it "RUNNING" */ -static void -nve_init(void *xsc) -{ - struct nve_softc *sc = xsc; - - NVE_LOCK(sc); - nve_init_locked(sc); - NVE_UNLOCK(sc); -} - -static void -nve_init_locked(struct nve_softc *sc) -{ - struct ifnet *ifp; - int error; - - NVE_LOCK_ASSERT(sc); - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_init - entry (%d)\n", sc->linkup); - - ifp = sc->ifp; - - /* Do nothing if already running */ - if (ifp->if_drv_flags & IFF_DRV_RUNNING) - return; - - nve_stop(sc); - DEBUGOUT(NVE_DEBUG_INIT, "nve: do pfnInit\n"); - - nve_ifmedia_upd_locked(ifp); - - /* Setup Hardware interface and allocate memory structures */ - error = sc->hwapi->pfnInit(sc->hwapi->pADCX, - 0, /* force speed */ - 0, /* force full duplex */ - 0, /* force mode */ - 0, /* force async mode */ - &sc->linkup); - - if (error) { - device_printf(sc->dev, - "failed to start NVIDIA Hardware interface\n"); - return; - } - /* Set the MAC address */ - sc->hwapi->pfnSetNodeAddress(sc->hwapi->pADCX, IF_LLADDR(sc->ifp)); - sc->hwapi->pfnEnableInterrupts(sc->hwapi->pADCX); - sc->hwapi->pfnStart(sc->hwapi->pADCX); - - /* Setup multicast filter */ - nve_setmulti(sc); - - /* Update interface parameters */ - ifp->if_drv_flags |= IFF_DRV_RUNNING; - ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; - - callout_reset(&sc->stat_callout, hz, nve_tick, sc); - - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_init - exit\n"); - - return; -} - -/* Stop interface activity ie. not "RUNNING" */ -static void -nve_stop(struct nve_softc *sc) -{ - struct ifnet *ifp; - - NVE_LOCK_ASSERT(sc); - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_stop - entry\n"); - - ifp = sc->ifp; - sc->tx_timer = 0; - - /* Cancel tick timer */ - callout_stop(&sc->stat_callout); - - /* Stop hardware activity */ - sc->hwapi->pfnDisableInterrupts(sc->hwapi->pADCX); - sc->hwapi->pfnStop(sc->hwapi->pADCX, 0); - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: do pfnDeinit\n"); - /* Shutdown interface and deallocate memory buffers */ - if (sc->hwapi->pfnDeinit) - sc->hwapi->pfnDeinit(sc->hwapi->pADCX, 0); - - sc->linkup = 0; - sc->cur_rx = 0; - sc->pending_rxs = 0; - sc->pending_txs = 0; - - ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_stop - exit\n"); - - return; -} - -/* Shutdown interface for unload/reboot */ -static int -nve_shutdown(device_t dev) -{ - struct nve_softc *sc; - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: nve_shutdown\n"); - - sc = device_get_softc(dev); - - /* Stop hardware activity */ - NVE_LOCK(sc); - nve_stop(sc); - NVE_UNLOCK(sc); - - return (0); -} - -/* Allocate TX ring buffers */ -static int -nve_init_rings(struct nve_softc *sc) -{ - int error, i; - - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_init_rings - entry\n"); - - sc->cur_rx = sc->cur_tx = sc->pending_rxs = sc->pending_txs = 0; - /* Initialise RX ring */ - for (i = 0; i < RX_RING_SIZE; i++) { - struct nve_rx_desc *desc = sc->rx_desc + i; - struct nve_map_buffer *buf = &desc->buf; - - buf->mbuf = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); - if (buf->mbuf == NULL) { - device_printf(sc->dev, "couldn't allocate mbuf\n"); - nve_free_rings(sc); - return (ENOBUFS); - } - buf->mbuf->m_len = buf->mbuf->m_pkthdr.len = MCLBYTES; - m_adj(buf->mbuf, ETHER_ALIGN); - - error = bus_dmamap_create(sc->mtag, 0, &buf->map); - if (error) { - device_printf(sc->dev, "couldn't create dma map\n"); - nve_free_rings(sc); - return (error); - } - error = bus_dmamap_load_mbuf(sc->mtag, buf->map, buf->mbuf, - nve_dmamap_rx_cb, &desc->paddr, 0); - if (error) { - device_printf(sc->dev, "couldn't dma map mbuf\n"); - nve_free_rings(sc); - return (error); - } - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_PREREAD); - - desc->buflength = buf->mbuf->m_len; - desc->vaddr = mtod(buf->mbuf, caddr_t); - } - bus_dmamap_sync(sc->rtag, sc->rmap, - BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); - - /* Initialize TX ring */ - for (i = 0; i < TX_RING_SIZE; i++) { - struct nve_tx_desc *desc = sc->tx_desc + i; - struct nve_map_buffer *buf = &desc->buf; - - buf->mbuf = NULL; - - error = bus_dmamap_create(sc->mtag, 0, &buf->map); - if (error) { - device_printf(sc->dev, "couldn't create dma map\n"); - nve_free_rings(sc); - return (error); - } - } - bus_dmamap_sync(sc->ttag, sc->tmap, - BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); - - DEBUGOUT(NVE_DEBUG_INIT, "nve: nve_init_rings - exit\n"); - - return (error); -} - -/* Free the TX ring buffers */ -static void -nve_free_rings(struct nve_softc *sc) -{ - int i; - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: nve_free_rings - entry\n"); - - for (i = 0; i < RX_RING_SIZE; i++) { - struct nve_rx_desc *desc = sc->rx_desc + i; - struct nve_map_buffer *buf = &desc->buf; - - if (buf->mbuf) { - bus_dmamap_unload(sc->mtag, buf->map); - bus_dmamap_destroy(sc->mtag, buf->map); - m_freem(buf->mbuf); - } - buf->mbuf = NULL; - } - - for (i = 0; i < TX_RING_SIZE; i++) { - struct nve_tx_desc *desc = sc->tx_desc + i; - struct nve_map_buffer *buf = &desc->buf; - - if (buf->mbuf) { - bus_dmamap_unload(sc->mtag, buf->map); - bus_dmamap_destroy(sc->mtag, buf->map); - m_freem(buf->mbuf); - } - buf->mbuf = NULL; - } - - DEBUGOUT(NVE_DEBUG_DEINIT, "nve: nve_free_rings - exit\n"); -} - -/* Main loop for sending packets from OS to interface */ -static void -nve_ifstart(struct ifnet *ifp) -{ - struct nve_softc *sc = ifp->if_softc; - - NVE_LOCK(sc); - nve_ifstart_locked(ifp); - NVE_UNLOCK(sc); -} - -static void -nve_ifstart_locked(struct ifnet *ifp) -{ - struct nve_softc *sc = ifp->if_softc; - struct nve_map_buffer *buf; - struct mbuf *m0, *m; - struct nve_tx_desc *desc; - ADAPTER_WRITE_DATA txdata; - int error, i; - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_ifstart - entry\n"); - - NVE_LOCK_ASSERT(sc); - - /* If link is down/busy or queue is empty do nothing */ - if (ifp->if_drv_flags & IFF_DRV_OACTIVE || - IFQ_DRV_IS_EMPTY(&ifp->if_snd)) - return; - - /* Transmit queued packets until sent or TX ring is full */ - while (sc->pending_txs < TX_RING_SIZE) { - desc = sc->tx_desc + sc->cur_tx; - buf = &desc->buf; - - /* Get next packet to send. */ - IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); - - /* If nothing to send, return. */ - if (m0 == NULL) - return; - - /* - * On nForce4, the chip doesn't interrupt on transmit, - * so try to flush transmitted packets from the queue - * if it's getting large (see note in nve_watchdog). - */ - if (sc->pending_txs > TX_RING_SIZE/2) { - sc->hwapi->pfnDisableInterrupts(sc->hwapi->pADCX); - sc->hwapi->pfnHandleInterrupt(sc->hwapi->pADCX); - sc->hwapi->pfnEnableInterrupts(sc->hwapi->pADCX); - } - - /* Map MBUF for DMA access */ - error = bus_dmamap_load_mbuf(sc->mtag, buf->map, m0, - nve_dmamap_tx_cb, desc, BUS_DMA_NOWAIT); - - if (error && error != EFBIG) { - m_freem(m0); - sc->tx_errors++; - continue; - } - /* - * Packet has too many fragments - defrag into new mbuf - * cluster - */ - if (error) { - m = m_defrag(m0, M_NOWAIT); - if (m == NULL) { - m_freem(m0); - sc->tx_errors++; - continue; - } - m0 = m; - - error = bus_dmamap_load_mbuf(sc->mtag, buf->map, m, - nve_dmamap_tx_cb, desc, BUS_DMA_NOWAIT); - if (error) { - m_freem(m); - sc->tx_errors++; - continue; - } - } - /* Do sync on DMA bounce buffer */ - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_PREWRITE); - - buf->mbuf = m0; - txdata.ulNumberOfElements = desc->numfrags; - txdata.pvID = (PVOID)desc; - - /* Put fragments into API element list */ - txdata.ulTotalLength = buf->mbuf->m_len; - for (i = 0; i < desc->numfrags; i++) { - txdata.sElement[i].ulLength = - (ulong)desc->frags[i].ds_len; - txdata.sElement[i].pPhysical = - (PVOID)desc->frags[i].ds_addr; - } - - /* Send packet to Nvidia API for transmission */ - error = sc->hwapi->pfnWrite(sc->hwapi->pADCX, &txdata); - - switch (error) { - case ADAPTERERR_NONE: - /* Packet was queued in API TX queue successfully */ - sc->pending_txs++; - sc->cur_tx = (sc->cur_tx + 1) % TX_RING_SIZE; - break; - - case ADAPTERERR_TRANSMIT_QUEUE_FULL: - /* The API TX queue is full - requeue the packet */ - device_printf(sc->dev, - "nve_ifstart: transmit queue is full\n"); - ifp->if_drv_flags |= IFF_DRV_OACTIVE; - bus_dmamap_unload(sc->mtag, buf->map); - IFQ_DRV_PREPEND(&ifp->if_snd, buf->mbuf); - buf->mbuf = NULL; - return; - - default: - /* The API failed to queue/send the packet so dump it */ - device_printf(sc->dev, "nve_ifstart: transmit error\n"); - bus_dmamap_unload(sc->mtag, buf->map); - m_freem(buf->mbuf); - buf->mbuf = NULL; - sc->tx_errors++; - return; - } - /* Set watchdog timer. */ - sc->tx_timer = 8; - - /* Copy packet to BPF tap */ - BPF_MTAP(ifp, m0); - } - ifp->if_drv_flags |= IFF_DRV_OACTIVE; - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_ifstart - exit\n"); -} - -/* Handle IOCTL events */ -static int -nve_ioctl(struct ifnet *ifp, u_long command, caddr_t data) -{ - struct nve_softc *sc = ifp->if_softc; - struct ifreq *ifr = (struct ifreq *) data; - struct mii_data *mii; - int error = 0; - - DEBUGOUT(NVE_DEBUG_IOCTL, "nve: nve_ioctl - entry\n"); - - switch (command) { - case SIOCSIFMTU: - /* Set MTU size */ - NVE_LOCK(sc); - if (ifp->if_mtu == ifr->ifr_mtu) { - NVE_UNLOCK(sc); - break; - } - if (ifr->ifr_mtu + ifp->if_hdrlen <= MAX_PACKET_SIZE_1518) { - ifp->if_mtu = ifr->ifr_mtu; - nve_stop(sc); - nve_init_locked(sc); - } else - error = EINVAL; - NVE_UNLOCK(sc); - break; - - case SIOCSIFFLAGS: - /* Setup interface flags */ - NVE_LOCK(sc); - if (ifp->if_flags & IFF_UP) { - if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { - nve_init_locked(sc); - NVE_UNLOCK(sc); - break; - } - } else { - if (ifp->if_drv_flags & IFF_DRV_RUNNING) { - nve_stop(sc); - NVE_UNLOCK(sc); - break; - } - } - /* Handle IFF_PROMISC and IFF_ALLMULTI flags. */ - nve_setmulti(sc); - NVE_UNLOCK(sc); - break; - - case SIOCADDMULTI: - case SIOCDELMULTI: - /* Setup multicast filter */ - NVE_LOCK(sc); - if (ifp->if_drv_flags & IFF_DRV_RUNNING) { - nve_setmulti(sc); - } - NVE_UNLOCK(sc); - break; - - case SIOCGIFMEDIA: - case SIOCSIFMEDIA: - /* Get/Set interface media parameters */ - mii = device_get_softc(sc->miibus); - error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); - break; - - default: - /* Everything else we forward to generic ether ioctl */ - error = ether_ioctl(ifp, command, data); - break; - } - - DEBUGOUT(NVE_DEBUG_IOCTL, "nve: nve_ioctl - exit\n"); - - return (error); -} - -/* Interrupt service routine */ -static void -nve_intr(void *arg) -{ - struct nve_softc *sc = arg; - struct ifnet *ifp = sc->ifp; - - DEBUGOUT(NVE_DEBUG_INTERRUPT, "nve: nve_intr - entry\n"); - - NVE_LOCK(sc); - if (!ifp->if_flags & IFF_UP) { - nve_stop(sc); - NVE_UNLOCK(sc); - return; - } - /* Handle interrupt event */ - if (sc->hwapi->pfnQueryInterrupt(sc->hwapi->pADCX)) { - sc->hwapi->pfnHandleInterrupt(sc->hwapi->pADCX); - sc->hwapi->pfnEnableInterrupts(sc->hwapi->pADCX); - } - if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) - nve_ifstart_locked(ifp); - - /* If no pending packets we don't need a timeout */ - if (sc->pending_txs == 0) - sc->tx_timer = 0; - NVE_UNLOCK(sc); - - DEBUGOUT(NVE_DEBUG_INTERRUPT, "nve: nve_intr - exit\n"); - - return; -} - -/* Setup multicast filters */ -static void -nve_setmulti(struct nve_softc *sc) -{ - struct ifnet *ifp; - struct ifmultiaddr *ifma; - PACKET_FILTER hwfilter; - int i; - u_int8_t andaddr[6], oraddr[6]; - - NVE_LOCK_ASSERT(sc); - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_setmulti - entry\n"); - - ifp = sc->ifp; - - /* Initialize filter */ - hwfilter.ulFilterFlags = 0; - for (i = 0; i < 6; i++) { - hwfilter.acMulticastAddress[i] = 0; - hwfilter.acMulticastMask[i] = 0; - } - - if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) { - /* Accept all packets */ - hwfilter.ulFilterFlags |= ACCEPT_ALL_PACKETS; - sc->hwapi->pfnSetPacketFilter(sc->hwapi->pADCX, &hwfilter); - return; - } - /* Setup multicast filter */ - if_maddr_rlock(ifp); - TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { - u_char *addrp; - - if (ifma->ifma_addr->sa_family != AF_LINK) - continue; - - addrp = LLADDR((struct sockaddr_dl *) ifma->ifma_addr); - for (i = 0; i < 6; i++) { - u_int8_t mcaddr = addrp[i]; - andaddr[i] &= mcaddr; - oraddr[i] |= mcaddr; - } - } - if_maddr_runlock(ifp); - for (i = 0; i < 6; i++) { - hwfilter.acMulticastAddress[i] = andaddr[i] & oraddr[i]; - hwfilter.acMulticastMask[i] = andaddr[i] | (~oraddr[i]); - } - - /* Send filter to NVIDIA API */ - sc->hwapi->pfnSetPacketFilter(sc->hwapi->pADCX, &hwfilter); - - DEBUGOUT(NVE_DEBUG_RUNNING, "nve: nve_setmulti - exit\n"); - - return; -} - -/* Change the current media/mediaopts */ -static int -nve_ifmedia_upd(struct ifnet *ifp) -{ - struct nve_softc *sc = ifp->if_softc; - - NVE_LOCK(sc); - nve_ifmedia_upd_locked(ifp); - NVE_UNLOCK(sc); - return (0); -} - -static void -nve_ifmedia_upd_locked(struct ifnet *ifp) -{ - struct nve_softc *sc = ifp->if_softc; - struct mii_data *mii; - struct mii_softc *miisc; - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_ifmedia_upd\n"); - - NVE_LOCK_ASSERT(sc); - mii = device_get_softc(sc->miibus); - - LIST_FOREACH(miisc, &mii->mii_phys, mii_list) - PHY_RESET(miisc); - mii_mediachg(mii); -} - -/* Update current miibus PHY status of media */ -static void -nve_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) -{ - struct nve_softc *sc; - struct mii_data *mii; - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_ifmedia_sts\n"); - - sc = ifp->if_softc; - NVE_LOCK(sc); - mii = device_get_softc(sc->miibus); - mii_pollstat(mii); - - ifmr->ifm_active = mii->mii_media_active; - ifmr->ifm_status = mii->mii_media_status; - NVE_UNLOCK(sc); - - return; -} - -/* miibus tick timer - maintain link status */ -static void -nve_tick(void *xsc) -{ - struct nve_softc *sc = xsc; - struct mii_data *mii; - struct ifnet *ifp; - - NVE_LOCK_ASSERT(sc); - - ifp = sc->ifp; - nve_update_stats(sc); - - mii = device_get_softc(sc->miibus); - mii_tick(mii); - - if (mii->mii_media_status & IFM_ACTIVE && - IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { - if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) - nve_ifstart_locked(ifp); - } - - if (sc->tx_timer > 0 && --sc->tx_timer == 0) - nve_watchdog(sc); - callout_reset(&sc->stat_callout, hz, nve_tick, sc); - - return; -} - -/* Update ifnet data structure with collected interface stats from API */ -static void -nve_update_stats(struct nve_softc *sc) -{ - struct ifnet *ifp = sc->ifp; - ADAPTER_STATS stats; - - NVE_LOCK_ASSERT(sc); - - if (sc->hwapi) { - sc->hwapi->pfnGetStatistics(sc->hwapi->pADCX, &stats); - - ifp->if_ipackets = stats.ulSuccessfulReceptions; - ifp->if_ierrors = stats.ulMissedFrames + - stats.ulFailedReceptions + - stats.ulCRCErrors + - stats.ulFramingErrors + - stats.ulOverFlowErrors; - - ifp->if_opackets = stats.ulSuccessfulTransmissions; - ifp->if_oerrors = sc->tx_errors + - stats.ulFailedTransmissions + - stats.ulRetryErrors + - stats.ulUnderflowErrors + - stats.ulLossOfCarrierErrors + - stats.ulLateCollisionErrors; - - ifp->if_collisions = stats.ulLateCollisionErrors; - } - - return; -} - -/* miibus Read PHY register wrapper - calls Nvidia API entry point */ -static int -nve_miibus_readreg(device_t dev, int phy, int reg) -{ - struct nve_softc *sc = device_get_softc(dev); - ULONG data; - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_miibus_readreg - entry\n"); - - ADAPTER_ReadPhy(sc->hwapi->pADCX, phy, reg, &data); - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_miibus_readreg - exit\n"); - - return (data); -} - -/* miibus Write PHY register wrapper - calls Nvidia API entry point */ -static int -nve_miibus_writereg(device_t dev, int phy, int reg, int data) -{ - struct nve_softc *sc = device_get_softc(dev); - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_miibus_writereg - entry\n"); - - ADAPTER_WritePhy(sc->hwapi->pADCX, phy, reg, (ulong)data); - - DEBUGOUT(NVE_DEBUG_MII, "nve: nve_miibus_writereg - exit\n"); - - return 0; -} - -/* Watchdog timer to prevent PHY lockups */ -static void -nve_watchdog(struct nve_softc *sc) -{ - struct ifnet *ifp; - int pending_txs_start; - - NVE_LOCK_ASSERT(sc); - ifp = sc->ifp; - - /* - * The nvidia driver blob defers tx completion notifications. - * Thus, sometimes the watchdog timer will go off when the - * tx engine is fine, but the tx completions are just deferred. - * Try kicking the driver blob to clear out any pending tx - * completions. If that clears up any of the pending tx - * operations, then just return without printing the warning - * message or resetting the adapter, as we can then conclude - * the chip hasn't actually crashed (it's still sending packets). - */ - pending_txs_start = sc->pending_txs; - sc->hwapi->pfnDisableInterrupts(sc->hwapi->pADCX); - sc->hwapi->pfnHandleInterrupt(sc->hwapi->pADCX); - sc->hwapi->pfnEnableInterrupts(sc->hwapi->pADCX); - if (sc->pending_txs < pending_txs_start) - return; - - device_printf(sc->dev, "device timeout (%d)\n", sc->pending_txs); - - sc->tx_errors++; - - nve_stop(sc); - nve_init_locked(sc); - - if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) - nve_ifstart_locked(ifp); -} - -/* --- Start of NVOSAPI interface --- */ - -/* Allocate DMA enabled general use memory for API */ -static NV_API_CALL NV_SINT32 -nve_osalloc(PNV_VOID ctx, PMEMORY_BLOCK mem) -{ - struct nve_softc *sc; - bus_addr_t mem_physical; - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osalloc - %d\n", mem->uiLength); - - sc = (struct nve_softc *)ctx; - - mem->pLogical = (PVOID)contigmalloc(mem->uiLength, M_DEVBUF, - M_NOWAIT | M_ZERO, 0, 0xffffffff, PAGE_SIZE, 0); - - if (!mem->pLogical) { - device_printf(sc->dev, "memory allocation failed\n"); - return (0); - } - memset(mem->pLogical, 0, (ulong)mem->uiLength); - mem_physical = vtophys(mem->pLogical); - mem->pPhysical = (PVOID)mem_physical; - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osalloc 0x%x/0x%x - %d\n", - (uint)mem->pLogical, (uint)mem->pPhysical, (uint)mem->uiLength); - - return (1); -} - -/* Free allocated memory */ -static NV_API_CALL NV_SINT32 -nve_osfree(PNV_VOID ctx, PMEMORY_BLOCK mem) -{ - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osfree - 0x%x - %d\n", - (uint)mem->pLogical, (uint) mem->uiLength); - - contigfree(mem->pLogical, PAGE_SIZE, M_DEVBUF); - return (1); -} - -/* Copied directly from nvnet.c */ -static NV_API_CALL NV_SINT32 -nve_osallocex(PNV_VOID ctx, PMEMORY_BLOCKEX mem_block_ex) -{ - MEMORY_BLOCK mem_block; - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osallocex\n"); - - mem_block_ex->pLogical = NULL; - mem_block_ex->uiLengthOrig = mem_block_ex->uiLength; - - if ((mem_block_ex->AllocFlags & ALLOC_MEMORY_ALIGNED) && - (mem_block_ex->AlignmentSize > 1)) { - DEBUGOUT(NVE_DEBUG_API, " aligning on %d\n", - mem_block_ex->AlignmentSize); - mem_block_ex->uiLengthOrig += mem_block_ex->AlignmentSize; - } - mem_block.uiLength = mem_block_ex->uiLengthOrig; - - if (nve_osalloc(ctx, &mem_block) == 0) { - return (0); - } - mem_block_ex->pLogicalOrig = mem_block.pLogical; - mem_block_ex->pPhysicalOrigLow = (unsigned long)mem_block.pPhysical; - mem_block_ex->pPhysicalOrigHigh = 0; - - mem_block_ex->pPhysical = mem_block.pPhysical; - mem_block_ex->pLogical = mem_block.pLogical; - - if (mem_block_ex->uiLength != mem_block_ex->uiLengthOrig) { - unsigned int offset; - offset = mem_block_ex->pPhysicalOrigLow & - (mem_block_ex->AlignmentSize - 1); - - if (offset) { - mem_block_ex->pPhysical = - (PVOID)((ulong)mem_block_ex->pPhysical + - mem_block_ex->AlignmentSize - offset); - mem_block_ex->pLogical = - (PVOID)((ulong)mem_block_ex->pLogical + - mem_block_ex->AlignmentSize - offset); - } /* if (offset) */ - } /* if (mem_block_ex->uiLength != *mem_block_ex->uiLengthOrig) */ - return (1); -} - -/* Copied directly from nvnet.c */ -static NV_API_CALL NV_SINT32 -nve_osfreeex(PNV_VOID ctx, PMEMORY_BLOCKEX mem_block_ex) -{ - MEMORY_BLOCK mem_block; - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osfreeex\n"); - - mem_block.pLogical = mem_block_ex->pLogicalOrig; - mem_block.pPhysical = (PVOID)((ulong)mem_block_ex->pPhysicalOrigLow); - mem_block.uiLength = mem_block_ex->uiLengthOrig; - - return (nve_osfree(ctx, &mem_block)); -} - -/* Clear memory region */ -static NV_API_CALL NV_SINT32 -nve_osclear(PNV_VOID ctx, PNV_VOID mem, NV_SINT32 length) -{ - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osclear\n"); - memset(mem, 0, length); - return (1); -} - -/* Sleep for a tick */ -static NV_API_CALL NV_SINT32 -nve_osdelay(PNV_VOID ctx, NV_UINT32 usec) -{ - DELAY(usec); - return (1); -} - -/* Allocate memory for rx buffer */ -static NV_API_CALL NV_SINT32 -nve_osallocrxbuf(PNV_VOID ctx, PMEMORY_BLOCK mem, PNV_VOID *id) -{ - struct nve_softc *sc = ctx; - struct nve_rx_desc *desc; - struct nve_map_buffer *buf; - int error; - - if (device_is_attached(sc->dev)) - NVE_LOCK_ASSERT(sc); - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osallocrxbuf\n"); - - if (sc->pending_rxs == RX_RING_SIZE) { - device_printf(sc->dev, "rx ring buffer is full\n"); - goto fail; - } - desc = sc->rx_desc + sc->cur_rx; - buf = &desc->buf; - - if (buf->mbuf == NULL) { - buf->mbuf = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); - if (buf->mbuf == NULL) { - device_printf(sc->dev, "failed to allocate memory\n"); - goto fail; - } - buf->mbuf->m_len = buf->mbuf->m_pkthdr.len = MCLBYTES; - m_adj(buf->mbuf, ETHER_ALIGN); - - error = bus_dmamap_load_mbuf(sc->mtag, buf->map, buf->mbuf, - nve_dmamap_rx_cb, &desc->paddr, 0); - if (error) { - device_printf(sc->dev, "failed to dmamap mbuf\n"); - m_freem(buf->mbuf); - buf->mbuf = NULL; - goto fail; - } - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_PREREAD); - desc->buflength = buf->mbuf->m_len; - desc->vaddr = mtod(buf->mbuf, caddr_t); - } - sc->pending_rxs++; - sc->cur_rx = (sc->cur_rx + 1) % RX_RING_SIZE; - - mem->pLogical = (void *)desc->vaddr; - mem->pPhysical = (void *)desc->paddr; - mem->uiLength = desc->buflength; - *id = (void *)desc; - - return (1); - -fail: - return (0); -} - -/* Free the rx buffer */ -static NV_API_CALL NV_SINT32 -nve_osfreerxbuf(PNV_VOID ctx, PMEMORY_BLOCK mem, PNV_VOID id) -{ - struct nve_softc *sc = ctx; - struct nve_rx_desc *desc; - struct nve_map_buffer *buf; - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_osfreerxbuf\n"); - - desc = (struct nve_rx_desc *) id; - buf = &desc->buf; - - if (buf->mbuf) { - bus_dmamap_unload(sc->mtag, buf->map); - bus_dmamap_destroy(sc->mtag, buf->map); - m_freem(buf->mbuf); - } - sc->pending_rxs--; - buf->mbuf = NULL; - - return (1); -} - -/* This gets called by the Nvidia API after our TX packet has been sent */ -static NV_API_CALL NV_SINT32 -nve_ospackettx(PNV_VOID ctx, PNV_VOID id, NV_UINT32 success) -{ - struct nve_softc *sc = ctx; - struct nve_map_buffer *buf; - struct nve_tx_desc *desc = (struct nve_tx_desc *) id; - struct ifnet *ifp; - - NVE_LOCK_ASSERT(sc); - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_ospackettx\n"); - - ifp = sc->ifp; - buf = &desc->buf; - sc->pending_txs--; - - /* Unload and free mbuf cluster */ - if (buf->mbuf == NULL) - goto fail; - - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_POSTWRITE); - bus_dmamap_unload(sc->mtag, buf->map); - m_freem(buf->mbuf); - buf->mbuf = NULL; - - /* Send more packets if we have them */ - if (sc->pending_txs < TX_RING_SIZE) - sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; - - if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd) && sc->pending_txs < TX_RING_SIZE) - nve_ifstart_locked(ifp); - -fail: - - return (1); -} - -/* This gets called by the Nvidia API when a new packet has been received */ -/* XXX What is newbuf used for? XXX */ -static NV_API_CALL NV_SINT32 -nve_ospacketrx(PNV_VOID ctx, PNV_VOID data, NV_UINT32 success, NV_UINT8 *newbuf, - NV_UINT8 priority) -{ - struct nve_softc *sc = ctx; - struct ifnet *ifp; - struct nve_rx_desc *desc; - struct nve_map_buffer *buf; - ADAPTER_READ_DATA *readdata; - struct mbuf *m; - - NVE_LOCK_ASSERT(sc); - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_ospacketrx\n"); - - ifp = sc->ifp; - - readdata = (ADAPTER_READ_DATA *) data; - desc = readdata->pvID; - buf = &desc->buf; - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_POSTREAD); - - if (success) { - /* Sync DMA bounce buffer. */ - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_POSTREAD); - - /* First mbuf in packet holds the ethernet and packet headers */ - buf->mbuf->m_pkthdr.rcvif = ifp; - buf->mbuf->m_pkthdr.len = buf->mbuf->m_len = - readdata->ulTotalLength; - - bus_dmamap_unload(sc->mtag, buf->map); - - /* Blat the mbuf pointer, kernel will free the mbuf cluster */ - m = buf->mbuf; - buf->mbuf = NULL; - - /* Give mbuf to OS. */ - NVE_UNLOCK(sc); - (*ifp->if_input)(ifp, m); - NVE_LOCK(sc); - if (readdata->ulFilterMatch & ADREADFL_MULTICAST_MATCH) - ifp->if_imcasts++; - - } else { - bus_dmamap_sync(sc->mtag, buf->map, BUS_DMASYNC_POSTREAD); - bus_dmamap_unload(sc->mtag, buf->map); - m_freem(buf->mbuf); - buf->mbuf = NULL; - } - - sc->cur_rx = desc - sc->rx_desc; - sc->pending_rxs--; - - return (1); -} - -/* This gets called by NVIDIA API when the PHY link state changes */ -static NV_API_CALL NV_SINT32 -nve_oslinkchg(PNV_VOID ctx, NV_SINT32 enabled) -{ - - DEBUGOUT(NVE_DEBUG_API, "nve: nve_oslinkchg\n"); - - return (1); -} - -/* Setup a watchdog timer */ -static NV_API_CALL NV_SINT32 -nve_osalloctimer(PNV_VOID ctx, PNV_VOID *timer) -{ - struct nve_softc *sc = (struct nve_softc *)ctx; - - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_osalloctimer\n"); - - callout_init(&sc->ostimer, CALLOUT_MPSAFE); - *timer = &sc->ostimer; - - return (1); -} - -/* Free the timer */ -static NV_API_CALL NV_SINT32 -nve_osfreetimer(PNV_VOID ctx, PNV_VOID timer) -{ - - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_osfreetimer\n"); - - callout_drain((struct callout *)timer); - - return (1); -} - -/* Setup timer parameters */ -static NV_API_CALL NV_SINT32 -nve_osinittimer(PNV_VOID ctx, PNV_VOID timer, PTIMER_FUNC func, PNV_VOID parameters) -{ - struct nve_softc *sc = (struct nve_softc *)ctx; - - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_osinittimer\n"); - - sc->ostimer_func = func; - sc->ostimer_params = parameters; - - return (1); -} - -/* Set the timer to go off */ -static NV_API_CALL NV_SINT32 -nve_ossettimer(PNV_VOID ctx, PNV_VOID timer, NV_UINT32 delay) -{ - struct nve_softc *sc = ctx; - - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_ossettimer\n"); - - callout_reset((struct callout *)timer, delay, sc->ostimer_func, - sc->ostimer_params); - - return (1); -} - -/* Cancel the timer */ -static NV_API_CALL NV_SINT32 -nve_oscanceltimer(PNV_VOID ctx, PNV_VOID timer) -{ - - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_oscanceltimer\n"); - - callout_stop((struct callout *)timer); - - return (1); -} - -static NV_API_CALL NV_SINT32 -nve_ospreprocpkt(PNV_VOID ctx, PNV_VOID readdata, PNV_VOID *id, - NV_UINT8 *newbuffer, NV_UINT8 priority) -{ - - /* Not implemented */ - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_ospreprocpkt\n"); - - return (1); -} - -static NV_API_CALL PNV_VOID -nve_ospreprocpktnopq(PNV_VOID ctx, PNV_VOID readdata) -{ - - /* Not implemented */ - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_ospreprocpkt\n"); - - return (NULL); -} - -static NV_API_CALL NV_SINT32 -nve_osindicatepkt(PNV_VOID ctx, PNV_VOID *id, NV_UINT32 pktno) -{ - - /* Not implemented */ - DEBUGOUT(NVE_DEBUG_BROKEN, "nve: nve_osindicatepkt\n"); - - return (1); -} - -/* Allocate mutex context (already done in nve_attach) */ -static NV_API_CALL NV_SINT32 -nve_oslockalloc(PNV_VOID ctx, NV_SINT32 type, PNV_VOID *pLock) -{ - struct nve_softc *sc = (struct nve_softc *)ctx; - - DEBUGOUT(NVE_DEBUG_LOCK, "nve: nve_oslockalloc\n"); - - *pLock = (void **)sc; - - return (1); -} - -/* Obtain a spin lock */ -static NV_API_CALL NV_SINT32 -nve_oslockacquire(PNV_VOID ctx, NV_SINT32 type, PNV_VOID lock) -{ - - DEBUGOUT(NVE_DEBUG_LOCK, "nve: nve_oslockacquire\n"); - - return (1); -} - -/* Release lock */ -static NV_API_CALL NV_SINT32 -nve_oslockrelease(PNV_VOID ctx, NV_SINT32 type, PNV_VOID lock) -{ - - DEBUGOUT(NVE_DEBUG_LOCK, "nve: nve_oslockrelease\n"); - - return (1); -} - -/* I have no idea what this is for */ -static NV_API_CALL PNV_VOID -nve_osreturnbufvirt(PNV_VOID ctx, PNV_VOID readdata) -{ - - /* Not implemented */ - DEBUGOUT(NVE_DEBUG_LOCK, "nve: nve_osreturnbufvirt\n"); - panic("nve: nve_osreturnbufvirtual not implemented\n"); - - return (NULL); -} - -/* --- End on NVOSAPI interface --- */ |
