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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
allwinner_emac.c hw/net: Make NetCanReceive() return a boolean 2020-03-31 21:14:35 +08:00
allwinner-sun8i-emac.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
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_regs.h
e1000.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
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
e1000e.c 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 Drop more @errp parameters after previous commit 2020-05-15 07:08:14 +02:00
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 hw/net: Make NetCanReceive() return a boolean 2020-03-31 21:14:35 +08:00
i82596.h hw/net: Make NetCanReceive() return a boolean 2020-03-31 21:14:35 +08:00
imx_fec.c net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
Kconfig hw/net/can: Correct Kconfig dependencies 2020-09-30 19:11:37 +02:00
lan9118.c hw/net/lan9118: Add symbolic constants for register offsets 2021-01-12 21:19:02 +00:00
lance.c Drop more @errp parameters after previous commit 2020-05-15 07:08:14 +02:00
lasi_i82596.c sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +02:00
mcf_fec.c mcf_fec: Move mcf_fec_state typedef to header 2020-08-27 14:04:54 -04:00
meson.build meson: convert hw/net 2020-08-21 06:30:29 -04:00
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 hw/net: Add Smartfusion2 emac block 2020-04-30 11:52:28 +01:00
ne2000-isa.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ne2000-pci.c Drop more @errp parameters after previous commit 2020-05-15 07:08:14 +02:00
ne2000.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
ne2000.h Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
net_rx_pkt.c NetRxPkt: fix hash calculation of IPV6 TCP 2020-03-03 18:04:47 +08:00
net_rx_pkt.h NetRxPkt: Introduce support for additional hash types 2020-03-03 18:04:47 +08:00
net_tx_pkt.c hw/net/net_tx_pkt: fix assertion failure in net_tx_pkt_add_raw_fragment() 2020-08-04 14:14:48 +08:00
net_tx_pkt.h hw/net: Added plen fix for IPv6 2020-07-21 21:30:39 +08:00
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 Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
pcnet.h lance: replace PROP_PTR with PROP_LINK 2020-01-07 17:24:29 +04:00
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 Add a phy-num property to the i.MX FEC emulator 2020-07-03 16:59:41 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
tulip.c tulip: Move TulipState typedef to header 2020-08-27 14:04:54 -04:00
tulip.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
vhost_net-stub.c vhost_net: introduce set_config & get_config 2020-07-03 07:57:04 -04:00
vhost_net.c vhost-vdpa: introduce vhost-vdpa backend 2020-07-07 07:59:51 -04:00
virtio-net.c virtio-net: handle zero mac for a vdpa peer 2021-03-02 06:09:54 -05:00
vmware_utils.h
vmxnet3_defs.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vmxnet3.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vmxnet3.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 Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00