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| author |   Michael S. Tsirkin <mst@redhat.com> | 2009-06-21 19:51:18 +0300 |
|---|---|---|
| committer |   Anthony Liguori <aliguori@us.ibm.com> | 2009-06-24 09:09:15 -0500 |
| commit | ffe6370c9f2a596814bf14e472910fe6ef7e001d (patch) | |
| tree | a8eae458eecbafcfffa07bb196839ea2c37cbafe /qemu-options.hx | |
| parent | qemu/net: request 3 vectors in virtio-net (diff) | |
| download | qemu-kvm-ffe6370c9f2a596814bf14e472910fe6ef7e001d.tar.gz qemu-kvm-ffe6370c9f2a596814bf14e472910fe6ef7e001d.tar.bz2 qemu-kvm-ffe6370c9f2a596814bf14e472910fe6ef7e001d.zip | |
qemu/net: flag to control the number of vectors a nic has
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>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 503da332f..fb1e7a65e 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -736,7 +736,7 @@ STEXI ETEXI DEF("net", HAS_ARG, QEMU_OPTION_net, - "-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str]\n" + "-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]\n" " create a new Network Interface Card and connect it to VLAN 'n'\n" #ifdef CONFIG_SLIRP "-net user[,vlan=n][,name=str][,hostname=host]\n" @@ -777,16 +777,18 @@ DEF("net", HAS_ARG, QEMU_OPTION_net, "-net none use it alone to have zero network devices; if no -net option\n" " is provided, the default is '-net nic -net user'\n") STEXI -@item -net nic[,vlan=@var{n}][,macaddr=@var{mac}][,model=@var{type}][,name=@var{name}][,addr=@var{addr}] +@item -net nic[,vlan=@var{n}][,macaddr=@var{mac}][,model=@var{type}][,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}] Create a new Network Interface Card and connect it to VLAN @var{n} (@var{n} = 0 is the default). The NIC is an ne2k_pci by default on the PC target. Optionally, the MAC address can be changed to @var{mac}, the device address set to @var{addr} (PCI cards only), -and a @var{name} can be assigned for use in monitor commands. If no -@option{-net} option is specified, a single NIC is created. -Qemu can emulate several different models of network card. +and a @var{name} can be assigned for use in monitor commands. +Optionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors +that the card should have; this option currently only affects virtio cards; set +@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single +NIC is created. Qemu can emulate several different models of network card. Valid values for @var{type} are -@code{i82551}, @code{i82557b}, @code{i82559er}, +@code{virtio}, @code{i82551}, @code{i82557b}, @code{i82559er}, @code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139}, @code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}. Not all devices are supported on all targets. Use -net nic,model=? |