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| author | Stefan Hajnoczi | 2010-07-02 20:15:47 +0200 |
|---|---|---|
| committer | Michael Brown | 2010-07-17 18:07:14 +0200 |
| commit | e4419ff97cdc6cf69c251ef1f768274f0a71c9d0 (patch) | |
| tree | d079c3c2255de618df612a7c6841a3c3ae81e80f /src/include/ipxe/errfile.h | |
| parent | [errcode] Remove unused contrib/errcode scripts (diff) | |
| download | ipxe-e4419ff97cdc6cf69c251ef1f768274f0a71c9d0.tar.gz ipxe-e4419ff97cdc6cf69c251ef1f768274f0a71c9d0.tar.xz ipxe-e4419ff97cdc6cf69c251ef1f768274f0a71c9d0.zip | |
[virtio] Replace virtio-net with native iPXE driver
This patch adds a native iPXE virtio-net driver and removes the legacy
Etherboot virtio-net driver. The main reasons for doing this are:
1. Multiple virtio-net NICs are now supported by iPXE. The legacy
driver kept global state and caused issues in virtual machines with
more than one virtio-net device.
2. Faster downloads. The native iPXE driver downloads 100 MB over
HTTP in 12s, the legacy Etherboot driver in 37s. This simple
benchmark uses KVM with tap networking and the Python
SimpleHTTPServer both running on the same host.
Changes to core virtio code reduce vring descriptors to 256 (QEMU uses
128 for virtio-blk and 256 for virtio-net) and change the opaque token
from u16 to void*. Lowering the descriptor count reduces memory
consumption. The void* opaque token change makes driver code simpler.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/ipxe/errfile.h')
| -rw-r--r-- | src/include/ipxe/errfile.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/ipxe/errfile.h b/src/include/ipxe/errfile.h index 861fee24..ec070339 100644 --- a/src/include/ipxe/errfile.h +++ b/src/include/ipxe/errfile.h @@ -126,6 +126,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #define ERRFILE_snpnet ( ERRFILE_DRIVER | 0x00590000 ) #define ERRFILE_snponly ( ERRFILE_DRIVER | 0x005a0000 ) #define ERRFILE_jme ( ERRFILE_DRIVER | 0x005b0000 ) +#define ERRFILE_virtio_net ( ERRFILE_DRIVER | 0x005c0000 ) #define ERRFILE_scsi ( ERRFILE_DRIVER | 0x00700000 ) #define ERRFILE_arbel ( ERRFILE_DRIVER | 0x00710000 ) |