update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / spdk / include / spdk / ioat.h

diff --git a/ceph/src/spdk/include/spdk/ioat.h b/ceph/src/spdk/include/spdk/ioat.h
index fc1750957ded00caa413160b984c9dd503278d57..c4e66be3b97e0a64973f45e97535589498019b28 100644 (file)
--- a/ceph/src/spdk/include/spdk/ioat.h
+++ b/ceph/src/spdk/include/spdk/ioat.h
@@ -107,6 +107,15 @@ int spdk_ioat_probe(void *cb_ctx, spdk_ioat_probe_cb probe_cb, spdk_ioat_attach_
   */
 void spdk_ioat_detach(struct spdk_ioat_chan *ioat);
 
+/**
+ * Get the maximum number of descriptors supported by the library.
+ *
+ * \param chan I/OAT channel
+ *
+ * \return maximum number of descriptors.
+ */
+uint32_t spdk_ioat_get_max_descriptors(struct spdk_ioat_chan *chan);
+
 /**
  * Build a DMA engine memory copy request.
  *
@@ -207,7 +216,7 @@ void spdk_ioat_flush(struct spdk_ioat_chan *chan);
  *
  * \param chan I/OAT channel to check for completions.
  *
- * \return 0 on success, negative errno on failure.
+ * \return number of events handled on success, negative errno on failure.
  */
 int spdk_ioat_process_events(struct spdk_ioat_chan *chan);