From 30d1de08c87ddde6f73936c3350e7e153988fe02 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 23 Aug 2016 12:17:48 -0700 Subject: hv_netvsc: make inline functions static Several new functions were introduced into hyperv.h but only used in one file. Move them and let compiler decide on inline. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/hyperv.h | 84 -------------------------------------------------- 1 file changed, 84 deletions(-) (limited to 'include/linux/hyperv.h') diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index b10954a66939..a6bc974def8f 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1422,88 +1422,4 @@ static inline bool hv_need_to_signal_on_read(struct hv_ring_buffer_info *rbi) return false; } -/* - * An API to support in-place processing of incoming VMBUS packets. - */ -#define VMBUS_PKT_TRAILER 8 - -static inline struct vmpacket_descriptor * -get_next_pkt_raw(struct vmbus_channel *channel) -{ - struct hv_ring_buffer_info *ring_info = &channel->inbound; - u32 read_loc = ring_info->priv_read_index; - void *ring_buffer = hv_get_ring_buffer(ring_info); - struct vmpacket_descriptor *cur_desc; - u32 packetlen; - u32 dsize = ring_info->ring_datasize; - u32 delta = read_loc - ring_info->ring_buffer->read_index; - u32 bytes_avail_toread = (hv_get_bytes_to_read(ring_info) - delta); - - if (bytes_avail_toread < sizeof(struct vmpacket_descriptor)) - return NULL; - - if ((read_loc + sizeof(*cur_desc)) > dsize) - return NULL; - - cur_desc = ring_buffer + read_loc; - packetlen = cur_desc->len8 << 3; - - /* - * If the packet under consideration is wrapping around, - * return failure. - */ - if ((read_loc + packetlen + VMBUS_PKT_TRAILER) > (dsize - 1)) - return NULL; - - return cur_desc; -} - -/* - * A helper function to step through packets "in-place" - * This API is to be called after each successful call - * get_next_pkt_raw(). - */ -static inline void put_pkt_raw(struct vmbus_channel *channel, - struct vmpacket_descriptor *desc) -{ - struct hv_ring_buffer_info *ring_info = &channel->inbound; - u32 read_loc = ring_info->priv_read_index; - u32 packetlen = desc->len8 << 3; - u32 dsize = ring_info->ring_datasize; - - if ((read_loc + packetlen + VMBUS_PKT_TRAILER) > dsize) - BUG(); - /* - * Include the packet trailer. - */ - ring_info->priv_read_index += packetlen + VMBUS_PKT_TRAILER; -} - -/* - * This call commits the read index and potentially signals the host. - * Here is the pattern for using the "in-place" consumption APIs: - * - * while (get_next_pkt_raw() { - * process the packet "in-place"; - * put_pkt_raw(); - * } - * if (packets processed in place) - * commit_rd_index(); - */ -static inline void commit_rd_index(struct vmbus_channel *channel) -{ - struct hv_ring_buffer_info *ring_info = &channel->inbound; - /* - * Make sure all reads are done before we update the read index since - * the writer may start writing to the read area once the read index - * is updated. - */ - virt_rmb(); - ring_info->ring_buffer->read_index = ring_info->priv_read_index; - - if (hv_need_to_signal_on_read(ring_info)) - vmbus_set_event(channel); -} - - #endif /* _HYPERV_H */ -- cgit v1.2.3-59-g8ed1b