Re: [Qemu-devel] [PATCH v7 11/23] hw/pvrdma: Add support to allow guest to configure GID table

[Eric Blake <eblake@redhat.com>]

On 12/17/18 2:10 AM, Yuval Shaia wrote:
> The control over the RDMA device's GID table is done by updating the
> device's Ethernet function addresses.
> Usually the first GID entry is determined by the MAC address, the second
> by the first IPv6 address and the third by the IPv4 address. Other
> entries can be added by adding more IP addresses. The opposite is the
> same, i.e. whenever an address is removed, the corresponding GID entry
> is removed.
> 
> The process is done by the network and RDMA stacks. Whenever an address
> is added the ib_core driver is notified and calls the device driver
> add_gid function which in turn update the device.
> 
> To support this in pvrdma device we need to hook into the create_bind
> and destroy_bind HW commands triggered by pvrdma driver in guest.
> Whenever changed is made to the pvrdma port's GID table a special QMP

s/changed/a change/

> messages is sent to be processed by libvirt to update the address of the

s/messages/message/

> backend Ethernet device.
> 
> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
> Reviewed-by: Marcel Apfelbaum<marcel.apfelbaum@gmail.com>
> ---


-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org