Date: Fri, 5 Aug 2016 13:55:47 GMT From: vincenzo@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r307220 - soc2016/vincenzo/head/usr.sbin/bhyve Message-ID: <201608051355.u75Dtlc6038963@socsvn.freebsd.org>
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Author: vincenzo Date: Fri Aug 5 13:55:46 2016 New Revision: 307220 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=307220 Log: ptnet: add PCI device stub Added: soc2016/vincenzo/head/usr.sbin/bhyve/pci_ptnetmap_netif.c Modified: soc2016/vincenzo/head/usr.sbin/bhyve/Makefile Modified: soc2016/vincenzo/head/usr.sbin/bhyve/Makefile ============================================================================== --- soc2016/vincenzo/head/usr.sbin/bhyve/Makefile Fri Aug 5 13:54:55 2016 (r307219) +++ soc2016/vincenzo/head/usr.sbin/bhyve/Makefile Fri Aug 5 13:55:46 2016 (r307220) @@ -33,6 +33,7 @@ pci_lpc.c \ pci_passthru.c \ pci_ptnetmap_memdev.c \ + pci_ptnetmap_netif.c \ pci_virtio_block.c \ pci_virtio_net.c \ pci_virtio_rnd.c \ Added: soc2016/vincenzo/head/usr.sbin/bhyve/pci_ptnetmap_netif.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ soc2016/vincenzo/head/usr.sbin/bhyve/pci_ptnetmap_netif.c Fri Aug 5 13:55:46 2016 (r307220) @@ -0,0 +1,130 @@ +/* + * Copyright (C) 2016 Vincenzo Maffione + * 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> + +#include <net/if.h> /* IFNAMSIZ */ +#include <net/netmap.h> +#include <dev/netmap/netmap_virt.h> + +#include <machine/vmm.h> +#include <vmmapi.h> + +#include "bhyverun.h" +#include "pci_emul.h" + +#ifndef PTNET_CSB_ALLOC +#error "Hypervisor-allocated CSB not supported" +#endif + + +struct ptnet_softc { + struct pci_devinst *pi; /* PCI device instance */ +}; + +static uint64_t +ptnet_bar_read(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, + int baridx, uint64_t offset, int size) +{ + struct ptnet_softc *sc = pi->pi_arg; + + if (sc == NULL) + return 0; + + if (baridx == PTNETMAP_IO_PCI_BAR) { + switch (offset) { + } + } + + printf("%s: Unexpected register read [bar %u, offset %lx size %d]\n", + __func__, baridx, offset, size); + + return 0; +} + +static void +ptnet_bar_write(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, + int baridx, uint64_t offset, int size, uint64_t value) +{ + struct ptnet_softc *sc = pi->pi_arg; + + if (sc == NULL) + return; + + printf("%s: Unexpected register write [bar %u, offset %lx size %d " + "value %lx]\n", __func__, baridx, offset, size, value); +} + +/* PCI device initialization. */ +static int +ptnet_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts) +{ + struct ptnet_softc *sc; + int ret; + + sc = calloc(1, sizeof(*sc)); + if (sc == NULL) { + fprintf(stderr, "%s: out of memory\n", __func__); + return -1; + } + + /* Link our softc in the pci_devinst. */ + pi->pi_arg = sc; + sc->pi = pi; + + /* Initialize PCI configuration space. */ + pci_set_cfgdata16(pi, PCIR_VENDOR, PTNETMAP_PCI_VENDOR_ID); + pci_set_cfgdata16(pi, PCIR_DEVICE, PTNETMAP_PCI_NETIF_ID); + pci_set_cfgdata8(pi, PCIR_CLASS, PCIC_NETWORK); + pci_set_cfgdata8(pi, PCIR_SUBCLASS, PCIS_NETWORK_ETHERNET); + pci_set_cfgdata16(pi, PCIR_SUBDEV_0, 1); + pci_set_cfgdata16(pi, PCIR_SUBVEND_0, PTNETMAP_PCI_VENDOR_ID); + + /* Allocate a BAR for an I/O region. */ + ret = pci_emul_alloc_bar(pi, PTNETMAP_IO_PCI_BAR, PCIBAR_IO, + PTNET_IO_MASK + 1); + if (ret) { + fprintf(stderr, "%s: failed to allocate BAR [%d]\n", + __func__, ret); + return ret; + } + + return 0; +} + +struct pci_devemu pci_de_ptnet = { + .pe_emu = "ptnet", + .pe_init = ptnet_init, + .pe_barwrite = ptnet_bar_write, + .pe_barread = ptnet_bar_read, +}; +PCI_EMUL_SET(pci_de_ptnet);
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