From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LMqkR-0000x3-Ba for qemu-devel@nongnu.org; Tue, 13 Jan 2009 16:24:31 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LMqkN-0000so-Ov for qemu-devel@nongnu.org; Tue, 13 Jan 2009 16:24:30 -0500 Received: from [199.232.76.173] (port=47243 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LMqkN-0000sk-HI for qemu-devel@nongnu.org; Tue, 13 Jan 2009 16:24:27 -0500 Received: from g4t0015.houston.hp.com ([15.201.24.18]:7558) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LMqkN-0000x5-5t for qemu-devel@nongnu.org; Tue, 13 Jan 2009 16:24:27 -0500 From: Alex Williamson Content-Type: text/plain Date: Tue, 13 Jan 2009 14:23:53 -0700 Message-Id: <1231881833.9095.193.camel@bling> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH 3/5] virtio-net: Add promiscuous and all-multicast mode status bits Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: kvm Cc: Mark McLoughlin , qemu-devel Set via control virtqueue. For compatibility with older guest drivers we need to default to promiscuous. Signed-off-by: Alex Williamson --- qemu/hw/virtio-net.c | 41 ++++++++++++++++++++++++++++++++++++++--- qemu/hw/virtio-net.h | 4 ++++ 2 files changed, 42 insertions(+), 3 deletions(-) diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio-net.c index 99f91f2..c5d9952 100644 --- a/qemu/hw/virtio-net.c +++ b/qemu/hw/virtio-net.c @@ -21,6 +21,8 @@ #define TAP_VNET_HDR +#define VIRTIO_VM_VERSION 3 + typedef struct VirtIONet { VirtIODevice vdev; @@ -32,6 +34,8 @@ typedef struct VirtIONet QEMUTimer *tx_timer; int tx_timer_active; int mergeable_rx_bufs; + int promisc; + int allmulti; } VirtIONet; /* TODO @@ -113,6 +117,7 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features) static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) { + VirtIONet *n = to_virtio_net(vdev); struct { uint8_t class; uint8_t cmd; @@ -134,7 +139,27 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) ctrl = (void *)elem.out_sg[0].iov_base; status = (void *)elem.in_sg[elem.in_num - 1].iov_base; - *status = VIRTIO_NET_ERR; + *status = VIRTIO_NET_OK; + + if (ctrl->class == VIRTIO_NET_CTRL_RX_MODE) { + uint8_t *on; + + if (elem.out_num != 2 || elem.out_sg[1].iov_len != sizeof(*on)) { + fprintf(stderr, "virtio-net ctrl invalid rx mode command\n"); + exit(1); + } + + on = (void *)elem.out_sg[1].iov_base; + + if (ctrl->cmd == VIRTIO_NET_CTRL_RX_MODE_PROMISC) + n->promisc = *on; + else if (ctrl->cmd == VIRTIO_NET_CTRL_RX_MODE_ALLMULTI) + n->allmulti = *on; + else + *status = VIRTIO_NET_ERR; + } else { + *status = VIRTIO_NET_ERR; + } virtqueue_push(vq, &elem, sizeof(*status)); virtio_notify(vdev, vq); @@ -409,13 +434,15 @@ static void virtio_net_save(QEMUFile *f, void *opaque) #ifdef TAP_VNET_HDR qemu_put_be32(f, tap_has_vnet_hdr(n->vc->vlan->first_client)); #endif + qemu_put_be32(f, n->promisc); + qemu_put_be32(f, n->allmulti); } static int virtio_net_load(QEMUFile *f, void *opaque, int version_id) { VirtIONet *n = opaque; - if (version_id != 2) + if (version_id < 2 || version_id > VIRTIO_VM_VERSION) return -EINVAL; virtio_load(&n->vdev, f); @@ -429,6 +456,13 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id) tap_using_vnet_hdr(n->vc->vlan->first_client, 1); #endif + if (version_id >= 3) { + n->promisc = qemu_get_be32(f); + n->allmulti = qemu_get_be32(f); + } else { + n->promisc = 1; + } + if (n->tx_timer_active) { qemu_mod_timer(n->tx_timer, qemu_get_clock(vm_clock) + TX_TIMER_INTERVAL); @@ -465,8 +499,9 @@ PCIDevice *virtio_net_init(PCIBus *bus, NICInfo *nd, int devfn) n->tx_timer = qemu_new_timer(vm_clock, virtio_net_tx_timer, n); n->tx_timer_active = 0; n->mergeable_rx_bufs = 0; + n->promisc = 1; /* for compatibility */ - register_savevm("virtio-net", virtio_net_id++, 2, + register_savevm("virtio-net", virtio_net_id++, VIRTIO_VM_VERSION, virtio_net_save, virtio_net_load, n); return (PCIDevice *)n; diff --git a/qemu/hw/virtio-net.h b/qemu/hw/virtio-net.h index 1f13123..beae4a4 100644 --- a/qemu/hw/virtio-net.h +++ b/qemu/hw/virtio-net.h @@ -80,4 +80,8 @@ PCIDevice *virtio_net_init(PCIBus *bus, NICInfo *nd, int devfn); #define VIRTIO_NET_OK 0 #define VIRTIO_NET_ERR 1 +#define VIRTIO_NET_CTRL_RX_MODE 0 + #define VIRTIO_NET_CTRL_RX_MODE_PROMISC 0 + #define VIRTIO_NET_CTRL_RX_MODE_ALLMULTI 1 + #endif