lib: add clarification about offset in src/dst pointers

Signed-off-by: Pablo de Lara <[email protected]>
intel · Nov 20, 2024 · 86cc89b · 86cc89b
1 parent 086bc86
commit 86cc89b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/intel-ipsec-mb.h b/lib/intel-ipsec-mb.h
@@ -390,6 +390,10 @@ struct IMB_SGL_IOV {
  * expected to point to an array of 3 pointers for
  * the corresponding 3 key schedules.
  * - same key schedule used for enc and dec operations
+ *
+ * Cipher offset only applies to src pointer, not dst pointer.
+ * In case of an in-place operation, dst pointer needs to point
+ * at src + cipher_start_src_offset_in_bytes/bits.
  */
 
 typedef struct IMB_JOB {