The subject line says it all. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Abhishek Kane <[email protected]> Signed-off-by: Hank Janssen <[email protected]> --- drivers/staging/hv/hyperv_net.h | 107 +++++++++++++++++++++++++++++++++++++++ 1 files changed, 107 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/hv/hyperv_net.h b/drivers/staging/hv/hyperv_net.h index ce27244..2a00730 100644 --- a/drivers/staging/hv/hyperv_net.h +++ b/drivers/staging/hv/hyperv_net.h @@ -21,3 +21,110 @@ * K. Y. Srinivasan <[email protected]> * */ + +#ifndef _HYPERV_NET_H +#define _HYPERV_NET_H + +#include <linux/list.h> + + +/* Fwd declaration */ +struct hv_netvsc_packet; + +/* Represent the xfer page packet which contains 1 or more netvsc packet */ +struct xferpage_packet { + struct list_head list_ent; + + /* # of netvsc packets this xfer packet contains */ + u32 count; +}; + +/* The number of pages which are enough to cover jumbo frame buffer. */ +#define NETVSC_PACKET_MAXPAGE 4 + +/* + * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame + * within the RNDIS + */ +struct hv_netvsc_packet { + /* Bookkeeping stuff */ + struct list_head list_ent; + + struct hv_device *device; + bool is_data_pkt; + + /* + * Valid only for receives when we break a xfer page packet + * into multiple netvsc packets + */ + struct xferpage_packet *xfer_page_pkt; + + union { + struct { + u64 recv_completion_tid; + void *recv_completion_ctx; + void (*recv_completion)(void *context); + } recv; + struct { + u64 send_completion_tid; + void *send_completion_ctx; + void (*send_completion)(void *context); + } send; + } completion; + + /* This points to the memory after page_buf */ + void *extension; + + u32 total_data_buflen; + /* Points to the send/receive buffer where the ethernet frame is */ + u32 page_buf_cnt; + struct hv_page_buffer page_buf[NETVSC_PACKET_MAXPAGE]; +}; + +/* Represents the net vsc driver */ +struct netvsc_driver { + /* Must be the first field */ + /* Which is a bug FIXME! */ + struct hv_driver base; + + u32 ring_buf_size; + u32 req_ext_size; + + /* + * This is set by the caller to allow us to callback when we + * receive a packet from the "wire" + */ + int (*recv_cb)(struct hv_device *dev, + struct hv_netvsc_packet *packet); + void (*link_status_change)(struct hv_device *dev, u32 status); + + /* Specific to this driver */ + int (*send)(struct hv_device *dev, struct hv_netvsc_packet *packet); + + void *ctx; +}; + +static inline +struct netvsc_driver *drv_to_netvscdrv(struct device_driver *d) +{ + struct hv_driver *hvdrv = drv_to_hv_drv(d); + return container_of(hvdrv, struct netvsc_driver, base); +} + +struct netvsc_device_info { + unsigned char mac_adr[6]; + bool link_state; /* 0 - link up, 1 - link down */ +}; + +/* Interface */ +int netvsc_device_add(struct hv_device *device, void *additional_info); +int netvsc_device_remove(struct hv_device *device); +int netvsc_initialize(struct hv_driver *drv); +int rndis_filter_open(struct hv_device *dev); +int rndis_filter_close(struct hv_device *dev); +int rndis_filte_device_add(struct hv_device *dev, + void *additional_info); +int rndis_filter_device_remove(struct hv_device *dev); + + +#endif /* _HYPERV_NET_H */ -- 1.7.4.1 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
