Move structures rpmsg_hdr and rpmsg_ns_msg to their own header file so that they can be used by other entities. Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> --- drivers/rpmsg/virtio_rpmsg_bus.c | 58 ++---------------------------- include/linux/rpmsg_ns.h | 62 ++++++++++++++++++++++++++++++++ include/uapi/linux/rpmsg.h | 3 ++ 3 files changed, 67 insertions(+), 56 deletions(-) create mode 100644 include/linux/rpmsg_ns.h diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 793fe924671f..85f2acc4ed9f 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -19,7 +19,7 @@ #include <linux/mutex.h> #include <linux/of_device.h> #include <linux/rpmsg.h> -#include <linux/rpmsg_byteorder.h> +#include <linux/rpmsg_ns.h> #include <linux/scatterlist.h> #include <linux/slab.h> #include <linux/sched.h> @@ -27,6 +27,7 @@ #include <linux/virtio_ids.h> #include <linux/virtio_config.h> #include <linux/wait.h> +#include <uapi/linux/rpmsg.h> #include "rpmsg_internal.h" @@ -70,58 +71,6 @@ struct virtproc_info { struct rpmsg_endpoint *ns_ept; }; -/* The feature bitmap for virtio rpmsg */ -#define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ - -/** - * struct rpmsg_hdr - common header for all rpmsg messages - * @src: source address - * @dst: destination address - * @reserved: reserved for future use - * @len: length of payload (in bytes) - * @flags: message flags - * @data: @len bytes of message payload data - * - * Every message sent(/received) on the rpmsg bus begins with this header. - */ -struct rpmsg_hdr { - __rpmsg32 src; - __rpmsg32 dst; - __rpmsg32 reserved; - __rpmsg16 len; - __rpmsg16 flags; - u8 data[]; -} __packed; - -/** - * struct rpmsg_ns_msg - dynamic name service announcement message - * @name: name of remote service that is published - * @addr: address of remote service that is published - * @flags: indicates whether service is created or destroyed - * - * This message is sent across to publish a new service, or announce - * about its removal. When we receive these messages, an appropriate - * rpmsg channel (i.e device) is created/destroyed. In turn, the ->probe() - * or ->remove() handler of the appropriate rpmsg driver will be invoked - * (if/as-soon-as one is registered). - */ -struct rpmsg_ns_msg { - char name[RPMSG_NAME_SIZE]; - __rpmsg32 addr; - __rpmsg32 flags; -} __packed; - -/** - * enum rpmsg_ns_flags - dynamic name service announcement flags - * - * @RPMSG_NS_CREATE: a new remote service was just created - * @RPMSG_NS_DESTROY: a known remote service was just destroyed - */ -enum rpmsg_ns_flags { - RPMSG_NS_CREATE = 0, - RPMSG_NS_DESTROY = 1, -}; - /** * @vrp: the remote processor this channel belongs to */ @@ -162,9 +111,6 @@ struct virtio_rpmsg_channel { */ #define RPMSG_RESERVED_ADDRESSES (1024) -/* Address 53 is reserved for advertising remote services */ -#define RPMSG_NS_ADDR (53) - static void virtio_rpmsg_destroy_ept(struct rpmsg_endpoint *ept); static int virtio_rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len); static int virtio_rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, diff --git a/include/linux/rpmsg_ns.h b/include/linux/rpmsg_ns.h new file mode 100644 index 000000000000..3d836b8580b2 --- /dev/null +++ b/include/linux/rpmsg_ns.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_RPMSG_NS_H +#define _LINUX_RPMSG_NS_H + +#include <linux/mod_devicetable.h> +#include <linux/types.h> +#include <linux/rpmsg_byteorder.h> + +/** + * struct rpmsg_hdr - common header for all rpmsg messages + * @src: source address + * @dst: destination address + * @reserved: reserved for future use + * @len: length of payload (in bytes) + * @flags: message flags + * @data: @len bytes of message payload data + * + * Every message sent(/received) on the rpmsg bus begins with this header. + */ +struct rpmsg_hdr { + __rpmsg32 src; + __rpmsg32 dst; + __rpmsg32 reserved; + __rpmsg16 len; + __rpmsg16 flags; + u8 data[]; +} __packed; + +/** + * struct rpmsg_ns_msg - dynamic name service announcement message + * @name: name of remote service that is published + * @addr: address of remote service that is published + * @flags: indicates whether service is created or destroyed + * + * This message is sent across to publish a new service, or announce + * about its removal. When we receive these messages, an appropriate + * rpmsg channel (i.e device) is created/destroyed. In turn, the ->probe() + * or ->remove() handler of the appropriate rpmsg driver will be invoked + * (if/as-soon-as one is registered). + */ +struct rpmsg_ns_msg { + char name[RPMSG_NAME_SIZE]; + __rpmsg32 addr; + __rpmsg32 flags; +} __packed; + +/** + * enum rpmsg_ns_flags - dynamic name service announcement flags + * + * @RPMSG_NS_CREATE: a new remote service was just created + * @RPMSG_NS_DESTROY: a known remote service was just destroyed + */ +enum rpmsg_ns_flags { + RPMSG_NS_CREATE = 0, + RPMSG_NS_DESTROY = 1, +}; + +/* Address 53 is reserved for advertising remote services */ +#define RPMSG_NS_ADDR (53) + +#endif diff --git a/include/uapi/linux/rpmsg.h b/include/uapi/linux/rpmsg.h index e14c6dab4223..d669c04ef289 100644 --- a/include/uapi/linux/rpmsg.h +++ b/include/uapi/linux/rpmsg.h @@ -24,4 +24,7 @@ struct rpmsg_endpoint_info { #define RPMSG_CREATE_EPT_IOCTL _IOW(0xb5, 0x1, struct rpmsg_endpoint_info) #define RPMSG_DESTROY_EPT_IOCTL _IO(0xb5, 0x2) +/* The feature bitmap for virtio rpmsg */ +#define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ + #endif -- 2.25.1