[PATCH v13 05/24] mailbox: Add Gunyah message queue mailbox

[Dmitry Baryshkov]

On 09/05/2023 23:47, Elliot Berman wrote:
> Gunyah message queues are a unidirectional inter-VM pipe for messages up
> to 1024 bytes. This driver supports pairing a receiver message queue and
> a transmitter message queue to expose a single mailbox channel.
> 
> Signed-off-by: Elliot Berman <quic_eberman at quicinc.com>
> ---
>   Documentation/virt/gunyah/message-queue.rst |   8 +
>   drivers/mailbox/Makefile                    |   2 +
>   drivers/mailbox/gunyah-msgq.c               | 212 ++++++++++++++++++++
>   include/linux/gunyah.h                      |  57 ++++++
>   4 files changed, 279 insertions(+)
>   create mode 100644 drivers/mailbox/gunyah-msgq.c
> 
> diff --git a/Documentation/virt/gunyah/message-queue.rst b/Documentation/virt/gunyah/message-queue.rst
> index b352918ae54b..70d82a4ef32d 100644
> --- a/Documentation/virt/gunyah/message-queue.rst
> +++ b/Documentation/virt/gunyah/message-queue.rst

Note, this file is not a part of the patchset. Trying to apply the 
patchset results in rejects. Probably you missed the documentation patch 
when sending this series.

> @@ -61,3 +61,11 @@ vIRQ: two TX message queues will have two vIRQs (and two capability IDs).
>         |               |         |                 |         |               |
>         |               |         |                 |         |               |
>         +---------------+         +-----------------+         +---------------+
> +
> +Gunyah message queues are exposed as mailboxes. To create the mailbox, create
> +a mbox_client and call `gh_msgq_init()`. On receipt of the RX_READY interrupt,
> +all messages in the RX message queue are read and pushed via the `rx_callback`
> +of the registered mbox_client.
> +
> +.. kernel-doc:: drivers/mailbox/gunyah-msgq.c
> +   :identifiers: gh_msgq_init-- 
With best wishes
Dmitry