qemu-e2k/hw/net
Cindy Lu fb59288239 virtio-net: handle zero mac for a vdpa peer
Some mlx vdpa devices with kernels at least up to 5.11 currently present
0 as their MAC address.  This is because they have not been
  pre-configured with a MAC: they have a learning bridge and only learn
the MAC once guest is up.  Kernel patches and tools to allow programming
the MAC from host are being developed. For now - since these
combinations exist in the field - let's detect zero mac and just try to
proceed with the mac from the qemu command line.

This makes the guest use this MAC to send packets in turn teaching
the MAC to the card, and things work.

TODO:
report the actual MAC from QEMU commad line in the info message.
TODO:
detect that a (non-zero) hardware MAC does not match QEMU command line
and fail init.

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20210225165506.18321-2-lulu@redhat.com>

mst: rewritten code comments, message printed and the commit log.

Cc: Eli Cohen <elic@nvidia.com>
Cc: Parav Pandit <parav@nvidia.com>
Tested-by: Adrian Moreno <amorenoz@redhat.com>
Tested-by: Sean Mooney <smooney@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-03-02 06:09:54 -05:00
..
can hw/net/can: Introduce Xilinx ZynqMP CAN controller 2020-12-10 11:30:44 +00:00
fsl_etsec hw/net: fsl_etsec: Reverse the RCTRL.RSF logic 2021-02-10 14:50:11 +11:00
rocker Machine queue, 2020-12-23 2021-01-01 22:57:15 +00:00
Kconfig hw/net/can: Correct Kconfig dependencies 2020-09-30 19:11:37 +02:00
allwinner-sun8i-emac.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
allwinner_emac.c
cadence_gem.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
dp8393x.c hw/net/dp8393x: fix integer underflow in dp8393x_do_transmit_packets() 2020-12-01 10:34:08 +00:00
e1000.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
e1000_regs.h
e1000e.c e1000e: Fix Lesser GPL version number 2020-11-15 16:45:49 +01:00
e1000e_core.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
e1000e_core.h e1000e: Fix Lesser GPL version number 2020-11-15 16:45:49 +01:00
e1000x_common.c e1000e: Fix Lesser GPL version number 2020-11-15 16:45:49 +01:00
e1000x_common.h e1000e: Fix Lesser GPL version number 2020-11-15 16:45:49 +01:00
eepro100.c
etraxfs_eth.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ftgmac100.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
i82596.c
i82596.h
imx_fec.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
lan9118.c hw/net/lan9118: Add symbolic constants for register offsets 2021-01-12 21:19:02 +00:00
lance.c
lasi_i82596.c
mcf_fec.c
meson.build
milkymist-minimac2.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
mipsnet.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
msf2-emac.c
ne2000-isa.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ne2000-pci.c
ne2000.c
ne2000.h
net_rx_pkt.c
net_rx_pkt.h
net_tx_pkt.c
net_tx_pkt.h
opencores_eth.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pcnet-pci.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
pcnet.c
pcnet.h
rtl8139.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
smc91c111.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
spapr_llan.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
stellaris_enet.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
sungem.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
sunhme.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
trace-events
trace.h
tulip.c
tulip.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
vhost_net-stub.c
vhost_net.c
virtio-net.c virtio-net: handle zero mac for a vdpa peer 2021-03-02 06:09:54 -05:00
vmware_utils.h
vmxnet3.c
vmxnet3.h
vmxnet3_defs.h
vmxnet_debug.h
xen_nic.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
xgmac.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
xilinx_axienet.c hw/net/xilinx_axienet: Rename StreamSlave as StreamSink 2020-12-10 12:15:04 -05:00
xilinx_ethlite.c