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path: root/hw/virtio-net.c
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2009-10-27virtio: use qdev properties for configuration.Gerd Hoffmann1-20/+25
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-22notify io_thread at the end of rx handlingGlauber Costa1-0/+4
This is a backport from qemu-kvm. Just instead of using kvm's specific notification mechanism, we use qemu_notify_event() Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24qemu/net: flag to control the number of vectors a nic hasMichael S. Tsirkin1-1/+4
Add an option to specify the number of MSI-X vectors for PCI NIC cards. This can also be used to disable MSI-X, for compatibility with old qemu. This option currently only affects virtio cards. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24qemu/net: request 3 vectors in virtio-netMichael S. Tsirkin1-0/+1
Request up to 3 vectors in virtio-net. Actual bindings might supply less. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22virtio-net: implement async packet sendingMark McLoughlin1-2/+37
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22virtio-net: enable mergeable receive buffersMark McLoughlin1-0/+1
When virtio-net was merged in from qemu-kvm.git, the VNET_HDR related features were dropped from the code. However, VIRTIO_NET_F_MRG_RXBUF appears to have accidentally been dropped too. Re-instate that now. Reported-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-09virtio-net: Increase filter and control limitsAlex Williamson1-2/+2
Increase the size of the perfect filter table and control queue depth. This should give us more headroom in the MAC filter and is known to be needed by at least one guest user. Increasing the control queue depth allows a guest to feed several commands back to back if they so desire rather than using the send and wait approach Linux uses. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: Add new RX filter controlsAlex Williamson1-4/+36
Add a few new RX modes to better control the receive_filter. These are all fairly obvious features that hardware could provide. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: MAC filter optimizationAlex Williamson1-4/+25
The MAC filter table is received from the guest as two separate buffers, one with unicast entries, the other with multicast entries. If we track the index dividing the two sets, we can avoid searching the part of the table with the wrong type of entries. We could store this index as part of the save image, but its trivially easy to discover it on load. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: Fix MAC filter overflow handlingAlex Williamson1-8/+23
Overloading the promisc and allmulti flags for indicating filter table overflow makes it difficult to track the actual requested operating mode. Split these out into separate flags. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: reorganize receive_filter()Alex Williamson1-8/+11
Reorganize receive_filter to better handle the split between unicast and multicast filtering. This allows us to skip the broadcast check on unicast packets and leads to more opportunities for optimization. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: Use a byte to store RX mode flagsAlex Williamson1-7/+12
There's no need to save 4 bytes for promisc and allmulti. Use one byte each just to avoid the overhead of a bitmap. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: Add version_id 7 placeholder for vnet header supportAlex Williamson1-1/+8
Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09virtio-net: implement rx packet queueingMark McLoughlin1-1/+4
If we don't have room to receive a packet, we return zero from virtio_net_receive() and call qemu_flush_queued_packets() as soon as space becomes available. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09net: add return value to packet receive handlerMark McLoughlin1-4/+6
This allows us to handle queue full conditions rather than dropping the packet on the floor. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09net: pass VLANClientState* as first arg to receive handlersMark McLoughlin1-4/+4
Give static type checking a chance to catch errors. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09net: re-name vc->fd_read() to vc->receive()Mark McLoughlin1-1/+1
VLANClientState's fd_read() handler doesn't read from file descriptors, it adds a buffer to the client's receive queue. Re-name the handlers to make things a little less confusing. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09net: add fd_readv() handler to qemu_new_vlan_client() argsMark McLoughlin1-1/+1
This, apparently, is the style we prefer - all VLANClientState should be an argument to qemu_new_vlan_client(). Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-05-18Separate virtio PCI codePaul Brook1-16/+7
Split the PCI host bindings from the VRing transport implementation. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14Virtio-net qdev conversionPaul Brook1-9/+12
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-17Introduce VLANClientState::cleanup() (Mark McLoughlin)aliguori1-1/+18
We're currently leaking memory and file descriptors on device hot-unplug. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7150 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-17Remove stray GSO code from virtio_net (Mark McLoughlin)aliguori1-5/+0
Obviously merged from kvm-userspace accidentally. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7142 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-13Fix OpenSolaris gcc4 warnings: iovec type mismatches, missing 'static'blueswir11-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7103 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05Fix oops on 2.6.25 guest (Rusty Russell)aliguori1-0/+16
I believe this is behind the following: https://bugs.edge.launchpad.net/ubuntu/jaunty/+source/linux/+bug/331128 virtio_pci in 2.6.25 didn't do feature negotiation correctly: it acked every bit. Fortunately, we can detect this. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6975 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13qemu:virtio-net: Check return size on the correct sg list (Alex Williamson)aliguori1-1/+1
When checking that the size of the control virtqueue return field is sufficient, use the correct sg list. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6845 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-16virtio: Remove malloc failure checks (Jan Kiszka)aliguori1-4/+0
No need to check for failing qemu_malloc anymore. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6626 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11qemu: return PCIDevice on net device init and record devfn (Marcelo Tosatti)aliguori1-4/+5
Change the PCI network drivers init functions to return the PCIDev, to inform which slot has been hot-plugged. Also record PCIDevice structure on NICInfo to locate for release on hot-removal. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6593 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Add VLAN filtering (Alex Williamson)aliguori1-3/+49
Use the control virtqueue to allow the guest to enable and manipulate a VLAN filter table. This allows us to drop more packets the guest doesn't want to see. We define a new VLAN class for the control virtqueue with commands ADD and DEL with usage defined in virtio-net.h. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6540 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Add additional MACs via a filter table (Alex Williamson)aliguori1-2/+87
Create a filter table and allow the guest to populate it with the MAC class control commands. We manage the size and usage of the filter table including enabling promiscuous and all-multi modes as necessary. The guest should therefore assume the table is infinite. Eventually this might allow us to bind directly to a hardware NIC and manipulate a physical MAC filter. The specifics of the TABLE_SET command are documented in virtio-net.h. Separate buffers in the same command are used for unicaste and multicast addresses for priority and sychronization. With this we can export the VIRTIO_NET_F_CTRL_RX feature bit. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6539 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Enable filtering based on MAC, promisc, broadcast and ↵aliguori1-0/+28
allmulti (Alex Williamson) Make use of the new RX_MODE control virtqueue class by dropping packets the guest doesn't want to see. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6538 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Add promiscuous and all-multicast mode bits (Alex Williamson)aliguori1-1/+47
Add a new RX_MODE control virtqueue class with commands PROMISC and ALLMULTI and usage documented in virtio-net.h allowing the guest to manipulate packet receiving options. We don't export a feature for this until we also add the MAC filter table. Note, for compatibility with older guest drivers we need to default to promiscuous. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6537 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Add a virtqueue for control commands from the guest (Alex ↵aliguori1-1/+33
Williamson) This will be used for RX mode, MAC table, VLAN table control, etc... The control transaction consists of one or more "out" sg entries and one or more "in" sg entries. The first out entry contains a header defining the class and command. Additional out entries may provide data for the command. A response via the ack entry is required and the guest will typically be waiting for it. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6536 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Define ETH_ALEN for use when manipulating MAC addresses ↵aliguori1-7/+7
(Alex Williamson) Makes it much easier to search too. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6535 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Allow setting the MAC address via set_config (Alex Williamson)aliguori1-2/+16
Allow the guest to write to the MAC address config space and update the network info string when it does. Rename get_config for symmetry. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6534 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05qemu:virtio-net: Save status and add some save infrastructure (Alex Williamson)aliguori1-2/+8
The status register should probably be saved since its guest visible. Also add a little bit if infrastructure for handling various save revisions. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6533 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Add and use #defines for PCI device classesblueswir11-1/+1
This patch adds and uses #defines for PCI device classes and subclases, using a new pci_config_set_class() function, similar to the recently added pci_config_set_vendor_id() and pci_config_set_device_id(). Change since v1: fixed compilation of hw/sun4u.c Signed-off-by: Stuart Brady <stuart.brady@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6491 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-26Use the default subsystem vendor ID for virtio devices (Mark McLoughlin)aliguori1-1/+2
A subsystem vendor ID of zero isn't allowed, so we use our default ID. Gerd points out that although the PCI subsystem vendor ID is treated by the guest as the virtio vendor ID: /* we use the subsystem vendor/device id as the virtio vendor/device * id. this allows us to use the same PCI vendor/device id for all * virtio devices and to identify the particular virtio driver by * the subsytem ids */ vp_dev->vdev.id.vendor = pci_dev->subsystem_vendor; vp_dev->vdev.id.device = pci_dev->subsystem_device; it looks like only the device ID is used right now: # grep virtio modules.alias alias virtio:d00000001v* virtio_net alias virtio:d00000002v* virtio_blk alias virtio:d00000003v* virtio_console alias virtio:d00000004v* virtio-rng alias virtio:d00000005v* virtio_balloon alias pci:v00001AF4d*sv*sd*bc*sc*i* virtio_pci alias virtio:d00000009v* 9pnet_virtio so setting the subsystem vendor id to something != zero shouldn't cause trouble. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6440 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-26Use macros for virtio-net PCI vendor/device IDs (Mark McLoughlin)aliguori1-1/+3
Gerd added these macros a while back. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6438 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-13Make virtio_net_init() return void (Mark McLoughlin)aliguori1-4/+2
All PCI NIC init functions return void and nothing uses the return value from virtio_net_init(). Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6291 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-08Implement virtio_net link status (Mark McLoughlin)aliguori1-2/+21
Implement the VIRTIO_NET_F_STATUS feature by exposing the link status through virtio_net_config::status. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6250 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07virtio-net migration fix (Mark McLoughlin)aliguori1-2/+4
We are failing to save whether the guest will supply us rx buffers using the new mergeable format; this can cause a migrated guest to crash with: virtio-net header not in first element Bump the savevm version number and refuse to load v1 saves just to be on the safe side. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6221 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07Add a -net name=foo parameter (Mark McLoughlin)aliguori1-1/+1
Allow the user to supply a vlan client name on the command line. This is probably only useful for management tools so that they can use their own names rather than parsing the output of 'info network'. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6220 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07add missing MAC address to info_str for some NICs (Mark McLoughlin)aliguori1-0/+2
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6219 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07Add a model string to VLANClientState (Mark McLoughlin)aliguori1-2/+2
Don't lose track of what type/model a vlan client is so that we can e.g. assign a global per-model id to clients. The entire patch is basically a tedious excercise in making sure the type/model string gets propagated down to qemu_new_vlan_client(). Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6216 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-17Use saner types for virtio-netaliguori1-2/+2
This was spotted by malc Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6075 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-17virtio-net supportaliguori1-0/+329
This adds virtio-net support. This is based on the virtio-net driver that exists in kvm-userspace. This also adds a new qemu_sendv_packet which virtio-net requires. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6073 c046a42c-6fe2-441c-8c8c-71466251a162
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