X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_cryptodev%2Frte_crypto_sym.h;h=f29c98051f967157089df029ae52678393ad9aea;hb=6857fdaff5ee93de0b12f407f5dceb2f433b5aa2;hp=da961a19d2599eae1c98085ff00a5f203020a231;hpb=e475fd853ac1cae9cf837a10e8c386503175752e;p=dpdk.git

diff --git a/lib/librte_cryptodev/rte_crypto_sym.h b/lib/librte_cryptodev/rte_crypto_sym.h
index da961a19d2..f29c98051f 100644
--- a/lib/librte_cryptodev/rte_crypto_sym.h
+++ b/lib/librte_cryptodev/rte_crypto_sym.h
@@ -705,6 +705,14 @@ struct rte_crypto_sym_op {
 					  * For KASUMI @ RTE_CRYPTO_AUTH_KASUMI_F9,
 					  * this offset should be such that
 					  * data to authenticate starts at COUNT.
+					  *
+					  * @note
+					  * For DOCSIS security protocol, this
+					  * offset is the DOCSIS header length
+					  * and, therefore, also the CRC offset
+					  * i.e. the number of bytes into the
+					  * packet at which CRC calculation
+					  * should begin.
 					  */
 					uint32_t length;
 					 /**< The message length, in bytes, of the source
@@ -723,6 +731,12 @@ struct rte_crypto_sym_op {
 					  * the length should include the COUNT,
 					  * FRESH, message, direction bit and padding
 					  * (to be multiple of 8 bits).
+					  *
+					  * @note
+					  * For DOCSIS security protocol, this
+					  * is the CRC length i.e. the number of
+					  * bytes in the packet over which the
+					  * CRC should be calculated
 					  */
 				} data;
 				/**< Data offsets and length for authentication */