diff mbox

[dpdk-dev,v5,08/13] compressdev: support hash operations

Message ID 20180413181832.11335-9-pablo.de.lara.guarch@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Pablo de Lara Guarch
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

De Lara Guarch, Pablo April 13, 2018, 6:18 p.m. UTC 
  From: Shally Verma <shally.verma@caviumnetworks.com>

- Added hash algo enumeration and params in xform and rte_comp_op
- Updated compress/decompress xform to input hash algorithm
- Updated struct rte_comp_op to input hash buffer

User in capability query will know about support hashes via
device info comp_feature_flag. If supported, application can initialize
desired algorithm enumeration in xform structure and pass valid hash
buffer during enqueue_burst().

Signed-off-by: Shally Verma <shally.verma@caviumnetworks.com>
Signed-off-by: Sunila Sahu <sunila.sahu@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gupta@caviumnetworks.com>
---
 lib/librte_compressdev/rte_comp.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
diff mbox

Patch

diff --git a/lib/librte_compressdev/rte_comp.h b/lib/librte_compressdev/rte_comp.h
index 5020aed33..639c577b6 100644
--- a/lib/librte_compressdev/rte_comp.h
+++ b/lib/librte_compressdev/rte_comp.h
@@ -63,6 +63,17 @@  enum rte_comp_algorithm {
 	RTE_COMP_ALGO_LIST_END
 };
 
+/** Compression Hash Algorithms */
+enum rte_comp_hash_algorithm {
+	RTE_COMP_HASH_ALGO_UNSPECIFIED = 0,
+	/**< No hash */
+	RTE_COMP_HASH_ALGO_SHA1,
+	/**< SHA1 hash algorithm */
+	RTE_COMP_HASH_ALGO_SHA2_256,
+	/**< SHA256 hash algorithm of SHA2 family */
+	RTE_COMP_HASH_ALGO_LIST_END
+};
+
 /**< Compression Level.
  * The number is interpreted by each PMD differently. However, lower numbers
  * give fastest compression, at the expense of compression ratio while
@@ -172,6 +183,10 @@  struct rte_comp_compress_xform {
 	 */
 	enum rte_comp_checksum_type chksum;
 	/**< Type of checksum to generate on the uncompressed data */
+	enum rte_comp_hash_algorithm hash_algo;
+	/**< Hash algorithm to be used with compress operation. Hash is always
+	 * done on plaintext.
+	 */
 };
 
 /**
@@ -187,6 +202,10 @@  struct rte_comp_decompress_xform {
 	 * compressed data. If window size can't be supported by the PMD then
 	 * setup of stream or private_xform should fail.
 	 */
+	enum rte_comp_hash_algorithm hash_algo;
+	/**< Hash algorithm to be used with decompress operation. Hash is always
+	 * done on plaintext.
+	 */
 };
 
 /**
@@ -278,6 +297,19 @@  struct rte_comp_op {
 		 * decompress direction.
 		 */
 	} dst;
+	struct {
+		uint8_t *digest;
+		/**< Output buffer to store hash output, if enabled in xform.
+		 * Buffer would contain valid value only after an op with
+		 * flush flag = RTE_COMP_FLUSH_FULL/FLUSH_FINAL is processed
+		 * successfully.
+		 *
+		 * Length of buffer should be contiguous and large enough to
+		 * accommodate digest produced by specific hash algo.
+		 */
+		rte_iova_t iova_addr;
+		/**< IO address of the buffer */
+	} hash;
 	enum rte_comp_flush_flag flush_flag;
 	/**< Defines flush characteristics for the output data.
 	 * Only applicable in compress direction