compressdev: add flag to specify where processing is done

A new device feature flag, RTE_COMPDEV_FF_OP_DONE_IN_DEQUEUE
is added. A PMD should set this if the bulk of the
processing is done during the dequeue. It should leave it
cleared if the bulk of the processing is done during the
enqueue (default).
Applications can use this as a hint for tuning.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Shally Verma <shallyv@marvell.com>

diff --git a/lib/librte_compressdev/rte_compressdev.c b/lib/librte_compressdev/rte_compressdev.c
index 10101ebbe774ca610966cbc55ca36604f2158aa3..338134bdf666df10b83337ba5c27f95cf7c42854 100644 (file)
--- a/lib/librte_compressdev/rte_compressdev.c
+++ b/lib/librte_compressdev/rte_compressdev.c
@@ -66,6 +66,8 @@ rte_compressdev_get_feature_name(uint64_t flag)
                return "CPU_AVX512";
        case RTE_COMPDEV_FF_CPU_NEON:
                return "CPU_NEON";
+       case RTE_COMPDEV_FF_OP_DONE_IN_DEQUEUE:
+               return "OP_DONE_IN_DEQ";
        default:
                return NULL;
        }

diff --git a/lib/librte_compressdev/rte_compressdev.h b/lib/librte_compressdev/rte_compressdev.h
index 7b68170a5f1130b44ad7bcb7c28b985e87abead6..d3c0000f0154d4580d4e989f99ce8868f4c676f8 100644 (file)
--- a/lib/librte_compressdev/rte_compressdev.h
+++ b/lib/librte_compressdev/rte_compressdev.h
@@ -73,6 +73,12 @@ rte_compressdev_capability_get(uint8_t dev_id,
 /**< Utilises CPU SIMD AVX512 instructions */
 #define        RTE_COMPDEV_FF_CPU_NEON                 (1ULL << 5)
 /**< Utilises CPU NEON instructions */
+#define RTE_COMPDEV_FF_OP_DONE_IN_DEQUEUE      (1ULL << 6)
+/**< A PMD should set this if the bulk of the
+ * processing is done during the dequeue. It should leave it
+ * cleared if the processing is done during the enqueue (default).
+ * Applications can use this as a hint for tuning.
+ */
 
 /**
  * Get the name of a compress device feature flag.