On 2/6/2011 11:21 PM, Venkateswararao Jujjuri (JV) wrote:
> This patch adds preferences field to the p9_trans_module.
> Through this, now transport layer can express its preference about the
> payload. i.e if payload neds to be part of the PDU or it prefers it
> to be sent sepearetly so that the transport layer can handle it in
> a better way.
>
> Signed-off-by: Venkateswararao Jujjuri <jvrao@xxxxxxxxxxxxxxxxxx>
> ---
> include/net/9p/transport.h | 9 +++++++++
> net/9p/trans_virtio.c | 1 +
> 2 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
> index 6d5886e..13c01a8 100644
> --- a/include/net/9p/transport.h
> +++ b/include/net/9p/transport.h
> @@ -26,11 +26,19 @@
> #ifndef NET_9P_TRANSPORT_H
> #define NET_9P_TRANSPORT_H
>
> +#define P9_TRANS_PREF_PAYLOAD_MASK 0x1
> +
> +/* Default. Add Payload to PDU before sending it down to transport layer */
> +#define P9_TRANS_PREF_PAYLOAD_DEF 0x0
> +/* Send pay load seperately to transport layer along with PDU.*/
> +#define P9_TRANS_PREF_PAYLOAD_SEP 0x1
> +
> /**
> * struct p9_trans_module - transport module interface
> * @list: used to maintain a list of currently available transports
> * @name: the human-readable name of the transport
> * @maxsize: transport provided maximum packet size
> + * @pref: Preferences of this transport
> * @def: set if this transport should be considered the default
> * @create: member function to create a new connection on this transport
> * @request: member function to issue a request to the transport
> @@ -47,6 +55,7 @@ struct p9_trans_module {
> struct list_head list;
> char *name; /* name of transport */
> int maxsize; /* max message size of transport */
> + int pref; /* Preferences of this transport */
> int def; /* this transport should be default */
> struct module *owner;
> int (*create)(struct p9_client *, const char *, char *);
> diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
> index 607f064..c76ace6 100644
> --- a/net/9p/trans_virtio.c
> +++ b/net/9p/trans_virtio.c
> @@ -521,6 +521,7 @@ static struct p9_trans_module p9_virtio_trans = {
> .request = p9_virtio_request,
> .cancel = p9_virtio_cancel,
> .maxsize = PAGE_SIZE*16,
> + .pref = P9_TRANS_PREF_PAYLOAD_DEF,
> .def = 0,
> .owner = THIS_MODULE,
> };
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
