diff options
Diffstat (limited to 'extras/libmemif/src/libmemif.h')
| -rw-r--r-- | extras/libmemif/src/libmemif.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/extras/libmemif/src/libmemif.h b/extras/libmemif/src/libmemif.h index e1f96f90c80..88b6a10f7b4 100644 --- a/extras/libmemif/src/libmemif.h +++ b/extras/libmemif/src/libmemif.h @@ -203,15 +203,20 @@ typedef enum /** \brief Memif buffer @param desc_index - ring descriptor index - @param len - buffer length + @param ring - pointer to ring containing descriptor for this buffer + @param len - available length @param flags - memif buffer flags @param data - pointer to shared memory data */ typedef struct { uint16_t desc_index; + void *ring; uint32_t len; +/** next buffer present (chained buffers) */ #define MEMIF_BUFFER_FLAG_NEXT (1 << 0) +/** states that buffer is from rx ring */ +#define MEMIF_BUFFER_FLAG_RX (1 << 1) uint8_t flags; void *data; } memif_buffer_t; @@ -423,6 +428,22 @@ int memif_control_fd_handler (int fd, uint8_t events); */ int memif_delete (memif_conn_handle_t * conn); +/** \brief Memif buffer enq tx + @param conn - memif conenction handle + @param qid - number indentifying queue + @param bufs - memif buffers + @param count - number of memif buffers to enque + @param count_out - returns number of allocated buffers + + Slave is producer of buffers. + If connection handle points to master returns MEMIF_ERR_INVAL_ARG. + + \return memif_err_t +*/ +int memif_buffer_enq_tx (memif_conn_handle_t conn, uint16_t qid, + memif_buffer_t * bufs, uint16_t count, + uint16_t * count_out); + /** \brief Memif buffer alloc @param conn - memif conenction handle @param qid - number indentifying queue @@ -441,11 +462,12 @@ int memif_buffer_alloc (memif_conn_handle_t conn, uint16_t qid, @param conn - memif conenction handle @param qid - number indentifying queue @param count - number of buffers to be placed on ring + @param headroom - offset the buffer by headroom \return memif_err_t */ int memif_refill_queue (memif_conn_handle_t conn, uint16_t qid, - uint16_t count); + uint16_t count, uint16_t headroom); /** \brief Memif transmit buffer burst @param conn - memif conenction handle |