tls: use fifo segments instead of chunks

[vpp.git] / src / svm / svm_fifo.h

diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index 4239e9d..2a05452 100644 (file)
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -207,6 +207,21 @@ svm_fifo_chunk_t *svm_fifo_chunk_alloc (u32 size);
  * @param f    fifo
  */
 int svm_fifo_fill_chunk_list (svm_fifo_t * f);
+/**
+ * Provision and return chunks for number of bytes requested
+ *
+ * Allocates enough chunks to cover the bytes requested and returns them
+ * in the fifo segment array. The number of bytes provisioned may be less
+ * than requested if not enough segments were provided.
+ *
+ * @param f            fifo
+ * @param fs           array of fifo segments
+ * @param n_segs       length of fifo segments array
+ * @param len          number of bytes to preallocate
+ * @return             number of fifo segments provisioned or error
+ */
+int svm_fifo_provision_chunks (svm_fifo_t *f, svm_fifo_seg_t *fs, u32 n_segs,
+                              u32 len);
 /**
  * Initialize rbtrees used for ooo lookups
  *