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| /openbmc/qemu/net/ |
| H A D | vhost-vdpa.c | 2848c6aa Fri Jul 07 10:27:28 CDT 2023 Hawkins Jiawei <yin31149@gmail.com> vdpa: Use iovec for vhost_vdpa_net_load_cmd()
According to VirtIO standard, "The driver MUST follow
the VIRTIO_NET_CTRL_MAC_TABLE_SET command by a le32 number,
followed by that number of non-multicast MAC addresses,
followed by another le32 number, followed by that number
of multicast addresses."
Considering that these data is not stored in contiguous memory,
this patch refactors vhost_vdpa_net_load_cmd() to accept
scattered data, eliminating the need for an addtional data copy or
packing the data into s->cvq_cmd_out_buffer outside of
vhost_vdpa_net_load_cmd().
Signed-off-by: Hawkins Jiawei <yin31149@gmail.com>
Message-Id: <3482cc50eebd13db4140b8b5dec9d0cc25b20b1b.1688743107.git.yin31149@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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