On Thu, Sep 12, 2013 at 10:47:37AM +0200, Vincenzo Maffione wrote: > This patch implements the NetClientInfo.receive_iov method for the > e1000 device emulation. In this way a network backend that uses > qemu_sendv_packet() can deliver the fragmented packet without > requiring an additional copy in the frontend/backend network code > (nc_sendv_compat() function). > > The existing method NetClientInfo.receive has been reimplemented > using the new method. > > Signed-off-by: Vincenzo Maffione <v.maffi...@gmail.com> > --- > hw/net/e1000.c | 70 > ++++++++++++++++++++++++++++++++++++++++++++++++---------- > 1 file changed, 58 insertions(+), 12 deletions(-) > > I propose this patch also because our research group (University of Pisa, > Department of Computer Engineering) is working on the e1000 device > (optimizations and paravirtual extensions) and we have patches to > support the VALE switch as a network backend (see > http://info.iet.unipi.it/~luigi/vale/). > The VALE backend uses qemu_sendv_packet() to send fragmented packets: For > this reason we think it could be interesting to better support these packets > with e1000.
Thanks, applied to my net-next tree: https://github.com/stefanha/qemu/commits/net-next Stefan
