svn commit: r275647 - in head/sys: arm/altera/socfpga arm/conf boot/fdt/dts/arm dev/beri/virtio dev/beri/virtio/network dev/virtio/mmio
Ruslan Bukin
br at FreeBSD.org
Tue Dec 9 16:39:24 UTC 2014
Author: br
Date: Tue Dec 9 16:39:21 2014
New Revision: 275647
URL: https://svnweb.freebsd.org/changeset/base/275647
Log:
o Add BERI Virtio Networking Frontend (if_vtbe)
o Move similar block/networking methods to common file
o Follow r275640 and correct MMIO registers width
o Pass value to MMIO platform_note method.
Sponsored by: DARPA, AFRL
Added:
head/sys/dev/beri/virtio/network/
head/sys/dev/beri/virtio/network/if_vtbe.c (contents, props changed)
Modified:
head/sys/arm/altera/socfpga/files.socfpga
head/sys/arm/conf/SOCKIT-BERI
head/sys/boot/fdt/dts/arm/socfpga-sockit-beri.dts
head/sys/dev/beri/virtio/virtio.c
head/sys/dev/beri/virtio/virtio.h
head/sys/dev/beri/virtio/virtio_block.c
head/sys/dev/beri/virtio/virtio_mmio_platform.c
head/sys/dev/beri/virtio/virtio_mmio_platform.h
head/sys/dev/virtio/mmio/virtio_mmio.c
head/sys/dev/virtio/mmio/virtio_mmio_if.m
Modified: head/sys/arm/altera/socfpga/files.socfpga
==============================================================================
--- head/sys/arm/altera/socfpga/files.socfpga Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/arm/altera/socfpga/files.socfpga Tue Dec 9 16:39:21 2014 (r275647)
@@ -26,5 +26,6 @@ dev/mmc/host/dwmmc.c optional dwmmc
# BERI specific
dev/beri/beri_ring.c optional beri_ring
dev/beri/beri_mem.c optional beri_mem
-dev/beri/virtio/virtio.c optional beri_vtblk
+dev/beri/virtio/virtio.c optional beri_vtblk | vtbe
dev/beri/virtio/virtio_block.c optional beri_vtblk
+dev/beri/virtio/network/if_vtbe.c optional vtbe
Modified: head/sys/arm/conf/SOCKIT-BERI
==============================================================================
--- head/sys/arm/conf/SOCKIT-BERI Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/arm/conf/SOCKIT-BERI Tue Dec 9 16:39:21 2014 (r275647)
@@ -123,6 +123,7 @@ device spibus
device beri_ring
device beri_mem
device beri_vtblk
+device vtbe
device altera_pio
# Ethernet
Modified: head/sys/boot/fdt/dts/arm/socfpga-sockit-beri.dts
==============================================================================
--- head/sys/boot/fdt/dts/arm/socfpga-sockit-beri.dts Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/boot/fdt/dts/arm/socfpga-sockit-beri.dts Tue Dec 9 16:39:21 2014 (r275647)
@@ -39,7 +39,8 @@
compatible = "altr,socfpga-cyclone5", "altr,socfpga";
memreserve = < 0x00000000 0x1000 >, /* SMP trampoline */
- < 0x00001000 0x1000 >; /* virtio block */
+ < 0x00001000 0x1000 >, /* virtio block */
+ < 0x00002000 0x1000 >; /* virtio net */
memory {
device_type = "memory";
@@ -111,6 +112,15 @@
pio-recv = <&pio0>;
pio-send = <&pio1>;
beri-mem = <&beri_mem0>;
+ status = "disabled";
+ };
+
+ beri_vtnet: vtnet at 00002000 {
+ compatible = "sri-cambridge,beri-vtnet";
+ reg = <0x00002000 0x1000>;
+ pio-recv = <&pio0>;
+ pio-send = <&pio1>;
+ beri-mem = <&beri_mem0>;
status = "okay";
};
Added: head/sys/dev/beri/virtio/network/if_vtbe.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/beri/virtio/network/if_vtbe.c Tue Dec 9 16:39:21 2014 (r275647)
@@ -0,0 +1,655 @@
+/*-
+ * Copyright (c) 2014 Ruslan Bukin <br at bsdpad.com>
+ * All rights reserved.
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
+ * ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * 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.
+ */
+
+/*
+ * BERI Virtio Networking Frontend
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/malloc.h>
+#include <sys/rman.h>
+#include <sys/timeet.h>
+#include <sys/timetc.h>
+#include <sys/endian.h>
+#include <sys/lock.h>
+#include <sys/mbuf.h>
+#include <sys/mutex.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/mdioctl.h>
+#include <sys/conf.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <net/bpf.h>
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+#include <net/if_var.h>
+#include <net/if_vlan_var.h>
+
+#include <machine/bus.h>
+#include <machine/fdt.h>
+#include <machine/cpu.h>
+#include <machine/intr.h>
+
+#include <dev/beri/virtio/virtio.h>
+#include <dev/beri/virtio/virtio_mmio_platform.h>
+
+#include <dev/altera/pio/pio.h>
+
+#include <dev/virtio/mmio/virtio_mmio.h>
+#include <dev/virtio/network/virtio_net.h>
+#include <dev/virtio/virtio.h>
+#include <dev/virtio/virtio_ring.h>
+
+#include "pio_if.h"
+
+#define DPRINTF(fmt, args...) printf(fmt, ##args)
+
+#define READ4(_sc, _reg) \
+ bus_read_4((_sc)->res[0], _reg)
+#define WRITE4(_sc, _reg, _val) \
+ bus_write_4((_sc)->res[0], _reg, _val)
+
+#define VTBE_LOCK(sc) mtx_lock(&(sc)->mtx)
+#define VTBE_UNLOCK(sc) mtx_unlock(&(sc)->mtx)
+#define VTBE_ASSERT_LOCKED(sc) mtx_assert(&(sc)->mtx, MA_OWNED);
+#define VTBE_ASSERT_UNLOCKED(sc) mtx_assert(&(sc)->mtx, MA_NOTOWNED);
+
+/*
+ * Driver data and defines.
+ */
+#define DESC_COUNT 256
+
+struct vtbe_softc {
+ struct resource *res[2];
+ bus_space_tag_t bst;
+ bus_space_handle_t bsh;
+ device_t dev;
+ struct ifnet *ifp;
+ int if_flags;
+ struct mtx mtx;
+ boolean_t is_attached;
+
+ int beri_mem_offset;
+ device_t pio_send;
+ device_t pio_recv;
+ int opened;
+
+ struct vqueue_info vs_queues[2];
+ int vs_curq;
+ int hdrsize;
+};
+
+static struct resource_spec vtbe_spec[] = {
+ { SYS_RES_MEMORY, 0, RF_ACTIVE },
+ { -1, 0 }
+};
+
+static void vtbe_txfinish_locked(struct vtbe_softc *sc);
+static void vtbe_rxfinish_locked(struct vtbe_softc *sc);
+static void vtbe_stop_locked(struct vtbe_softc *sc);
+static int pio_enable_irq(struct vtbe_softc *sc, int enable);
+
+static void
+vtbe_txstart_locked(struct vtbe_softc *sc)
+{
+ struct virtio_net_hdr_mrg_rxbuf *vnh;
+ struct iovec iov[DESC_COUNT];
+ struct vqueue_info *vq;
+ struct iovec *riov;
+ struct ifnet *ifp;
+ struct mbuf *m;
+ struct uio uio;
+ int enqueued;
+ int iolen;
+ int error;
+ int *addr;
+ int reg;
+ int len;
+ int n;
+
+ VTBE_ASSERT_LOCKED(sc);
+
+ /* RX queue */
+ vq = &sc->vs_queues[0];
+ if (!vq_has_descs(vq)) {
+ return;
+ }
+
+ ifp = sc->ifp;
+ if (ifp->if_drv_flags & IFF_DRV_OACTIVE) {
+ return;
+ }
+
+ enqueued = 0;
+
+ if (!vq_ring_ready(vq))
+ return;
+
+ vq->vq_save_used = be16toh(vq->vq_used->idx);
+
+ for (;;) {
+ if (!vq_has_descs(vq)) {
+ ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+ break;
+ }
+
+ IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
+ if (m == NULL) {
+ break;
+ }
+
+ n = vq_getchain(sc->beri_mem_offset, vq, iov,
+ DESC_COUNT, NULL);
+
+ KASSERT(n >= 1 && n <= DESC_COUNT,
+ ("wrong descriptors num %d", n));
+
+ addr = iov[0].iov_base;
+ len = iov[0].iov_len;
+
+ vnh = iov[0].iov_base;
+ memset(vnh, 0, sc->hdrsize);
+ vnh->num_buffers = htobe16(1);
+
+ iov[0].iov_len -= sc->hdrsize;
+ iov[0].iov_base = (void *)((uintptr_t)iov[0].iov_base +
+ sc->hdrsize);
+ riov = &iov[0];
+
+ uio.uio_resid = iov[0].iov_len;
+ uio.uio_iov = riov;
+ uio.uio_segflg = UIO_SYSSPACE;
+ uio.uio_iovcnt = 1;
+ uio.uio_offset = 0;
+ uio.uio_rw = UIO_READ;
+
+ error = m_mbuftouio(&uio, m, 0);
+ if (error)
+ panic("m_mbuftouio failed\n");
+
+ iolen = (len - iov[0].iov_len - sc->hdrsize);
+ vq_relchain(vq, iov, 0, iolen + sc->hdrsize);
+ paddr_unmap((void *)addr, len);
+
+ if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
+
+ BPF_MTAP(ifp, m);
+ m_freem(m);
+
+ ++enqueued;
+ }
+
+ if (enqueued != 0) {
+ reg = htobe32(VIRTIO_MMIO_INT_VRING);
+ WRITE4(sc, VIRTIO_MMIO_INTERRUPT_STATUS, reg);
+
+ PIO_SET(sc->pio_send, Q_INTR, 1);
+ }
+}
+
+static void
+vtbe_txstart(struct ifnet *ifp)
+{
+ struct vtbe_softc *sc = ifp->if_softc;
+
+ VTBE_LOCK(sc);
+ vtbe_txstart_locked(sc);
+ VTBE_UNLOCK(sc);
+}
+
+static void
+vtbe_stop_locked(struct vtbe_softc *sc)
+{
+ struct ifnet *ifp;
+
+ VTBE_ASSERT_LOCKED(sc);
+
+ ifp = sc->ifp;
+ ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+}
+
+static void
+vtbe_init_locked(struct vtbe_softc *sc)
+{
+ struct ifnet *ifp = sc->ifp;
+
+ VTBE_ASSERT_LOCKED(sc);
+
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ return;
+
+ ifp->if_drv_flags |= IFF_DRV_RUNNING;
+}
+
+static void
+vtbe_init(void *if_softc)
+{
+ struct vtbe_softc *sc = if_softc;
+
+ VTBE_LOCK(sc);
+ vtbe_init_locked(sc);
+ VTBE_UNLOCK(sc);
+}
+
+static int
+vtbe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+ struct ifmediareq *ifmr;
+ struct vtbe_softc *sc;
+ struct ifreq *ifr;
+ int mask, error;
+
+ sc = ifp->if_softc;
+ ifr = (struct ifreq *)data;
+
+ error = 0;
+ switch (cmd) {
+ case SIOCSIFFLAGS:
+ VTBE_LOCK(sc);
+ if (ifp->if_flags & IFF_UP) {
+ pio_enable_irq(sc, 1);
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
+ vtbe_init_locked(sc);
+ }
+ } else {
+ pio_enable_irq(sc, 0);
+
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
+ vtbe_stop_locked(sc);
+ }
+ }
+ sc->if_flags = ifp->if_flags;
+ VTBE_UNLOCK(sc);
+ break;
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+ break;
+ case SIOCSIFMEDIA:
+ case SIOCGIFMEDIA:
+ ifmr = (struct ifmediareq *)data;
+ ifmr->ifm_count = 1;
+ ifmr->ifm_status = (IFM_AVALID | IFM_ACTIVE);
+ ifmr->ifm_active = (IFM_ETHER | IFM_10G_T | IFM_FDX);
+ ifmr->ifm_current = ifmr->ifm_active;
+ break;
+ case SIOCSIFCAP:
+ mask = ifp->if_capenable ^ ifr->ifr_reqcap;
+ if (mask & IFCAP_VLAN_MTU) {
+ ifp->if_capenable ^= IFCAP_VLAN_MTU;
+ }
+ break;
+
+ case SIOCSIFADDR:
+ pio_enable_irq(sc, 1);
+ default:
+ error = ether_ioctl(ifp, cmd, data);
+ break;
+ }
+
+ return (error);
+}
+
+static void
+vtbe_txfinish_locked(struct vtbe_softc *sc)
+{
+ struct ifnet *ifp;
+
+ VTBE_ASSERT_LOCKED(sc);
+
+ ifp = sc->ifp;
+}
+
+static int
+vq_init(struct vtbe_softc *sc)
+{
+ struct vqueue_info *vq;
+ uint8_t *base;
+ int size;
+ int reg;
+ int pfn;
+
+ vq = &sc->vs_queues[sc->vs_curq];
+ vq->vq_qsize = DESC_COUNT;
+
+ reg = READ4(sc, VIRTIO_MMIO_QUEUE_PFN);
+ pfn = be32toh(reg);
+ vq->vq_pfn = pfn;
+
+ size = vring_size(vq->vq_qsize, VRING_ALIGN);
+ base = paddr_map(sc->beri_mem_offset,
+ (pfn << PAGE_SHIFT), size);
+
+ /* First pages are descriptors */
+ vq->vq_desc = (struct vring_desc *)base;
+ base += vq->vq_qsize * sizeof(struct vring_desc);
+
+ /* Then avail ring */
+ vq->vq_avail = (struct vring_avail *)base;
+ base += (2 + vq->vq_qsize + 1) * sizeof(uint16_t);
+
+ /* Then it's rounded up to the next page */
+ base = (uint8_t *)roundup2((uintptr_t)base, VRING_ALIGN);
+
+ /* And the last pages are the used ring */
+ vq->vq_used = (struct vring_used *)base;
+
+ /* Mark queue as allocated, and start at 0 when we use it. */
+ vq->vq_flags = VQ_ALLOC;
+ vq->vq_last_avail = 0;
+
+ return (0);
+}
+
+static void
+vtbe_proc_rx(struct vtbe_softc *sc, struct vqueue_info *vq)
+{
+ struct iovec iov[DESC_COUNT];
+ struct ifnet *ifp;
+ struct uio uio;
+ struct mbuf *m;
+ int iolen;
+ int i;
+ int n;
+
+ ifp = sc->ifp;
+
+ n = vq_getchain(sc->beri_mem_offset, vq, iov,
+ DESC_COUNT, NULL);
+
+ KASSERT(n >= 1 && n <= DESC_COUNT,
+ ("wrong n %d", n));
+
+ iolen = 0;
+ for (i = 1; i < n; i++) {
+ iolen += iov[i].iov_len;
+ }
+
+ uio.uio_resid = iolen;
+ uio.uio_iov = &iov[1];
+ uio.uio_segflg = UIO_SYSSPACE;
+ uio.uio_iovcnt = (n - 1);
+ uio.uio_rw = UIO_WRITE;
+
+ if ((m = m_uiotombuf(&uio, M_NOWAIT, 0, ETHER_ALIGN,
+ M_PKTHDR)) == NULL) {
+ if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
+ goto done;
+ }
+
+ m->m_pkthdr.rcvif = ifp;
+
+ if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
+
+ CURVNET_SET(ifp->if_vnet);
+ VTBE_UNLOCK(sc);
+ (*ifp->if_input)(ifp, m);
+ VTBE_LOCK(sc);
+ CURVNET_RESTORE();
+
+done:
+ vq_relchain(vq, iov, n, iolen + sc->hdrsize);
+}
+
+static void
+vtbe_rxfinish_locked(struct vtbe_softc *sc)
+{
+ struct vqueue_info *vq;
+ int reg;
+
+ /* TX queue */
+ vq = &sc->vs_queues[1];
+ if (!vq_ring_ready(vq))
+ return;
+
+ /* Process new descriptors */
+ vq->vq_save_used = be16toh(vq->vq_used->idx);
+
+ while (vq_has_descs(vq)) {
+ vtbe_proc_rx(sc, vq);
+ }
+
+ /* Interrupt the other side */
+ reg = htobe32(VIRTIO_MMIO_INT_VRING);
+ WRITE4(sc, VIRTIO_MMIO_INTERRUPT_STATUS, reg);
+
+ PIO_SET(sc->pio_send, Q_INTR, 1);
+}
+
+static void
+vtbe_intr(void *arg)
+{
+ struct vtbe_softc *sc;
+ int pending;
+ uint32_t reg;
+
+ sc = arg;
+
+ VTBE_LOCK(sc);
+
+ reg = PIO_READ(sc->pio_recv);
+
+ /* Ack */
+ PIO_SET(sc->pio_recv, reg, 0);
+
+ pending = htobe32(reg);
+ if (pending & Q_SEL) {
+ reg = READ4(sc, VIRTIO_MMIO_QUEUE_SEL);
+ sc->vs_curq = be32toh(reg);
+ }
+
+ if (pending & Q_PFN) {
+ vq_init(sc);
+ }
+
+ if (pending & Q_NOTIFY) {
+ /* beri rx / arm tx notify */
+ vtbe_txfinish_locked(sc);
+ }
+
+ if (pending & Q_NOTIFY1) {
+ vtbe_rxfinish_locked(sc);
+ }
+
+ VTBE_UNLOCK(sc);
+}
+
+static int
+vtbe_get_hwaddr(struct vtbe_softc *sc, uint8_t *hwaddr)
+{
+ int rnd;
+
+ /*
+ * Generate MAC address, use 'bsd' + random 24 low-order bits.
+ */
+
+ rnd = arc4random() & 0x00ffffff;
+
+ hwaddr[0] = 'b';
+ hwaddr[1] = 's';
+ hwaddr[2] = 'd';
+ hwaddr[3] = rnd >> 16;
+ hwaddr[4] = rnd >> 8;
+ hwaddr[5] = rnd >> 0;
+
+ return (0);
+}
+
+static int
+pio_enable_irq(struct vtbe_softc *sc, int enable)
+{
+
+ /*
+ * IRQ lines should be disabled while reprogram FPGA core.
+ */
+
+ if (enable) {
+ if (sc->opened == 0) {
+ sc->opened = 1;
+ PIO_SETUP_IRQ(sc->pio_recv, vtbe_intr, sc);
+ }
+ } else {
+ if (sc->opened == 1) {
+ PIO_TEARDOWN_IRQ(sc->pio_recv);
+ sc->opened = 0;
+ }
+ }
+
+ return (0);
+}
+
+static int
+vtbe_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (!ofw_bus_is_compatible(dev, "sri-cambridge,beri-vtnet"))
+ return (ENXIO);
+
+ device_set_desc(dev, "Virtio BERI Ethernet Controller");
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+vtbe_attach(device_t dev)
+{
+ uint8_t macaddr[ETHER_ADDR_LEN];
+ struct vtbe_softc *sc;
+ struct ifnet *ifp;
+ int reg;
+
+ sc = device_get_softc(dev);
+ sc->dev = dev;
+
+ sc->hdrsize = sizeof(struct virtio_net_hdr_mrg_rxbuf);
+
+ if (bus_alloc_resources(dev, vtbe_spec, sc->res)) {
+ device_printf(dev, "could not allocate resources\n");
+ return (ENXIO);
+ }
+
+ /* Memory interface */
+ sc->bst = rman_get_bustag(sc->res[0]);
+ sc->bsh = rman_get_bushandle(sc->res[0]);
+
+ mtx_init(&sc->mtx, device_get_nameunit(sc->dev),
+ MTX_NETWORK_LOCK, MTX_DEF);
+
+ if (setup_offset(dev, &sc->beri_mem_offset) != 0)
+ return (ENXIO);
+ if (setup_pio(dev, "pio-send", &sc->pio_send) != 0)
+ return (ENXIO);
+ if (setup_pio(dev, "pio-recv", &sc->pio_recv) != 0)
+ return (ENXIO);
+
+ /* Setup MMIO */
+
+ /* Specify that we provide network device */
+ reg = htobe32(VIRTIO_ID_NETWORK);
+ WRITE4(sc, VIRTIO_MMIO_DEVICE_ID, reg);
+
+ /* The number of desc we support */
+ reg = htobe32(DESC_COUNT);
+ WRITE4(sc, VIRTIO_MMIO_QUEUE_NUM_MAX, reg);
+
+ /* Our features */
+ reg = htobe32(VIRTIO_NET_F_MAC |
+ VIRTIO_NET_F_MRG_RXBUF |
+ VIRTIO_F_NOTIFY_ON_EMPTY);
+ WRITE4(sc, VIRTIO_MMIO_HOST_FEATURES, reg);
+
+ /* Get MAC */
+ if (vtbe_get_hwaddr(sc, macaddr)) {
+ device_printf(sc->dev, "can't get mac\n");
+ return (ENXIO);
+ }
+
+ /* Set up the ethernet interface. */
+ sc->ifp = ifp = if_alloc(IFT_ETHER);
+ ifp->if_baudrate = IF_Gbps(10);
+ ifp->if_softc = sc;
+ if_initname(ifp, device_get_name(dev), device_get_unit(dev));
+ ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX |
+ IFF_MULTICAST | IFF_PROMISC);
+ ifp->if_capabilities = IFCAP_VLAN_MTU;
+ ifp->if_capenable = ifp->if_capabilities;
+ ifp->if_start = vtbe_txstart;
+ ifp->if_ioctl = vtbe_ioctl;
+ ifp->if_init = vtbe_init;
+ IFQ_SET_MAXLEN(&ifp->if_snd, DESC_COUNT - 1);
+ ifp->if_snd.ifq_drv_maxlen = DESC_COUNT - 1;
+ IFQ_SET_READY(&ifp->if_snd);
+ ifp->if_hdrlen = sizeof(struct ether_vlan_header);
+
+ /* All ready to run, attach the ethernet interface. */
+ ether_ifattach(ifp, macaddr);
+
+ sc->is_attached = true;
+
+ return (0);
+}
+
+static device_method_t vtbe_methods[] = {
+ DEVMETHOD(device_probe, vtbe_probe),
+ DEVMETHOD(device_attach, vtbe_attach),
+
+ { 0, 0 }
+};
+
+static driver_t vtbe_driver = {
+ "vtbe",
+ vtbe_methods,
+ sizeof(struct vtbe_softc),
+};
+
+static devclass_t vtbe_devclass;
+
+DRIVER_MODULE(vtbe, simplebus, vtbe_driver, vtbe_devclass, 0, 0);
+MODULE_DEPEND(vtbe, ether, 1, 1, 1);
Modified: head/sys/dev/beri/virtio/virtio.c
==============================================================================
--- head/sys/dev/beri/virtio/virtio.c Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/dev/beri/virtio/virtio.c Tue Dec 9 16:39:21 2014 (r275647)
@@ -58,10 +58,18 @@ __FBSDID("$FreeBSD$");
#include <machine/cpu.h>
#include <machine/intr.h>
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
#include <dev/beri/virtio/virtio.h>
#include <dev/virtio/virtio.h>
#include <dev/virtio/virtqueue.h>
#include <dev/virtio/virtio_ring.h>
+#include <dev/altera/pio/pio.h>
+
+#include "pio_if.h"
int
vq_ring_ready(struct vqueue_info *vq)
@@ -167,12 +175,13 @@ vq_relchain(struct vqueue_info *vq, stru
int i;
mask = vq->vq_qsize - 1;
+ vu = vq->vq_used;
head = be16toh(vq->vq_avail->ring[vq->vq_last_avail++ & mask]);
- vu = vq->vq_used;
uidx = be16toh(vu->idx);
vue = &vu->ring[uidx++ & mask];
- vue->id = htobe16(head);
+ vue->id = htobe32(head);
+
vue->len = htobe32(iolen);
vu->idx = htobe16(uidx);
@@ -181,3 +190,59 @@ vq_relchain(struct vqueue_info *vq, stru
paddr_unmap((void *)iov[i].iov_base, iov[i].iov_len);
}
}
+
+int
+setup_pio(device_t dev, char *name, device_t *pio_dev)
+{
+ phandle_t pio_node;
+ struct fdt_ic *ic;
+ phandle_t xref;
+ phandle_t node;
+
+ if ((node = ofw_bus_get_node(dev)) == -1)
+ return (ENXIO);
+
+ if (OF_searchencprop(node, name, &xref,
+ sizeof(xref)) == -1) {
+ return (ENXIO);
+ }
+
+ pio_node = OF_node_from_xref(xref);
+ SLIST_FOREACH(ic, &fdt_ic_list_head, fdt_ics) {
+ if (ic->iph == pio_node) {
+ *pio_dev = ic->dev;
+ PIO_CONFIGURE(*pio_dev, PIO_OUT_ALL,
+ PIO_UNMASK_ALL);
+ return (0);
+ }
+ }
+
+ return (ENXIO);
+}
+
+int
+setup_offset(device_t dev, uint32_t *offset)
+{
+ pcell_t dts_value[2];
+ phandle_t mem_node;
+ phandle_t xref;
+ phandle_t node;
+ int len;
+
+ if ((node = ofw_bus_get_node(dev)) == -1)
+ return (ENXIO);
+
+ if (OF_searchencprop(node, "beri-mem", &xref,
+ sizeof(xref)) == -1) {
+ return (ENXIO);
+ }
+
+ mem_node = OF_node_from_xref(xref);
+ if ((len = OF_getproplen(mem_node, "reg")) <= 0)
+ return (ENXIO);
+ OF_getencprop(mem_node, "reg", dts_value, len);
+ *offset = dts_value[0];
+
+ return (0);
+}
+
Modified: head/sys/dev/beri/virtio/virtio.h
==============================================================================
--- head/sys/dev/beri/virtio/virtio.h Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/dev/beri/virtio/virtio.h Tue Dec 9 16:39:21 2014 (r275647)
@@ -41,14 +41,10 @@
#define PAGE_SHIFT 12
#define VRING_ALIGN 4096
-#define NUM_QUEUES 1
#define VQ_ALLOC 0x01 /* set once we have a pfn */
#define VQ_MAX_DESCRIPTORS 512
-#define VTBLK_BLK_ID_BYTES 20
-#define VTBLK_MAXSEGS 256
-
struct vqueue_info {
uint16_t vq_qsize; /* size of this queue (a power of 2) */
uint16_t vq_num;
@@ -70,3 +66,5 @@ int vq_getchain(uint32_t beri_mem_offset
struct iovec *iov, int n_iov, uint16_t *flags);
void vq_relchain(struct vqueue_info *vq, struct iovec *iov, int n, uint32_t iolen);
+int setup_pio(device_t dev, char *name, device_t *pio_dev);
+int setup_offset(device_t dev, uint32_t *offset);
Modified: head/sys/dev/beri/virtio/virtio_block.c
==============================================================================
--- head/sys/dev/beri/virtio/virtio_block.c Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/dev/beri/virtio/virtio_block.c Tue Dec 9 16:39:21 2014 (r275647)
@@ -74,6 +74,13 @@ __FBSDID("$FreeBSD$");
#define DPRINTF(fmt, ...)
+/* We use indirect descriptors */
+#define NUM_DESCS 1
+#define NUM_QUEUES 1
+
+#define VTBLK_BLK_ID_BYTES 20
+#define VTBLK_MAXSEGS 256
+
struct beri_vtblk_softc {
struct resource *res[1];
bus_space_tag_t bst;
@@ -286,8 +293,12 @@ vtblk_notify(struct beri_vtblk_softc *sc
while (vq_has_descs(vq))
vtblk_proc(sc, vq);
- /* Interrupt other side */
- PIO_SET(sc->pio_send, Q_INTR, 1);
+ /* Interrupt the other side */
+ if ((be16toh(vq->vq_avail->flags) & VRING_AVAIL_F_NO_INTERRUPT) == 0) {
+ reg = htobe32(VIRTIO_MMIO_INT_VRING);
+ WRITE4(sc, VIRTIO_MMIO_INTERRUPT_STATUS, reg);
+ PIO_SET(sc->pio_send, Q_INTR, 1);
+ }
return (0);
}
@@ -302,7 +313,7 @@ vq_init(struct beri_vtblk_softc *sc)
int pfn;
vq = &sc->vs_queues[0];
- vq->vq_qsize = NUM_QUEUES;
+ vq->vq_qsize = NUM_DESCS;
reg = READ4(sc, VIRTIO_MMIO_QUEUE_PFN);
pfn = be32toh(reg);
@@ -353,61 +364,6 @@ vtblk_thread(void *arg)
}
static int
-setup_pio(struct beri_vtblk_softc *sc, char *name, device_t *dev)
-{
- phandle_t pio_node;
- struct fdt_ic *ic;
- phandle_t xref;
- phandle_t node;
-
- if ((node = ofw_bus_get_node(sc->dev)) == -1)
- return (ENXIO);
-
- if (OF_searchencprop(node, name, &xref,
- sizeof(xref)) == -1) {
- return (ENXIO);
- }
-
- pio_node = OF_node_from_xref(xref);
- SLIST_FOREACH(ic, &fdt_ic_list_head, fdt_ics) {
- if (ic->iph == pio_node) {
- *dev = ic->dev;
- PIO_CONFIGURE(*dev, PIO_OUT_ALL,
- PIO_UNMASK_ALL);
- return (0);
- }
- }
-
- return (ENXIO);
-}
-
-static int
-setup_offset(struct beri_vtblk_softc *sc)
-{
- pcell_t dts_value[2];
- phandle_t mem_node;
- phandle_t xref;
- phandle_t node;
- int len;
-
- if ((node = ofw_bus_get_node(sc->dev)) == -1)
- return (ENXIO);
-
- if (OF_searchencprop(node, "beri-mem", &xref,
- sizeof(xref)) == -1) {
- return (ENXIO);
- }
-
- mem_node = OF_node_from_xref(xref);
- if ((len = OF_getproplen(mem_node, "reg")) <= 0)
- return (ENXIO);
- OF_getencprop(mem_node, "reg", dts_value, len);
- sc->beri_mem_offset = dts_value[0];
-
- return (0);
-}
-
-static int
backend_info(struct beri_vtblk_softc *sc)
{
struct virtio_blk_config *cfg;
@@ -419,9 +375,9 @@ backend_info(struct beri_vtblk_softc *sc
reg = htobe32(VIRTIO_ID_BLOCK);
WRITE4(sc, VIRTIO_MMIO_DEVICE_ID, reg);
- /* The number of queues we support */
- reg = htobe16(NUM_QUEUES);
- WRITE2(sc, VIRTIO_MMIO_QUEUE_NUM, reg);
+ /* Queue size */
+ reg = htobe32(NUM_DESCS);
+ WRITE4(sc, VIRTIO_MMIO_QUEUE_NUM_MAX, reg);
/* Our features */
reg = htobe32(VIRTIO_RING_F_INDIRECT_DESC
@@ -566,11 +522,11 @@ beri_vtblk_attach(device_t dev)
return (ENXIO);
}
- if (setup_offset(sc) != 0)
+ if (setup_offset(dev, &sc->beri_mem_offset) != 0)
return (ENXIO);
- if (setup_pio(sc, "pio-send", &sc->pio_send) != 0)
+ if (setup_pio(dev, "pio-send", &sc->pio_send) != 0)
return (ENXIO);
- if (setup_pio(sc, "pio-recv", &sc->pio_recv) != 0)
+ if (setup_pio(dev, "pio-recv", &sc->pio_recv) != 0)
return (ENXIO);
sc->cdev = make_dev(&beri_cdevsw, 0, UID_ROOT, GID_WHEEL,
Modified: head/sys/dev/beri/virtio/virtio_mmio_platform.c
==============================================================================
--- head/sys/dev/beri/virtio/virtio_mmio_platform.c Tue Dec 9 15:26:04 2014 (r275646)
+++ head/sys/dev/beri/virtio/virtio_mmio_platform.c Tue Dec 9 16:39:21 2014 (r275647)
@@ -149,20 +149,49 @@ virtio_mmio_platform_attach(device_t dev
}
static int
-platform_note(device_t dev, size_t offset)
+platform_note(device_t dev, size_t offset, int val)
{
struct virtio_mmio_platform_softc *sc;
+ int note;
+ int i;
sc = device_get_softc(dev);
- if (offset == VIRTIO_MMIO_QUEUE_NOTIFY) {
- mips_dcache_wbinv_all();
- PIO_SET(sc->pio_send, Q_NOTIFY, 1);
+ switch (offset) {
+ case (VIRTIO_MMIO_QUEUE_NOTIFY):
+ if (val == 0)
+ note = Q_NOTIFY;
+ else if (val == 1)
+ note = Q_NOTIFY1;
+ break;
+ case (VIRTIO_MMIO_QUEUE_PFN):
+ note = Q_PFN;
+ break;
+ case (VIRTIO_MMIO_QUEUE_SEL):
+ note = Q_SEL;
+ break;
+ default:
+ note = 0;
}
- if (offset == VIRTIO_MMIO_QUEUE_PFN) {
+ if (note) {
mips_dcache_wbinv_all();
- PIO_SET(sc->pio_send, Q_PFN, 1);
+
+ PIO_SET(sc->pio_send, note, 1);
+
+ /*
+ * Wait until host ack the request.
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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