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From: Pablo de Lara <pablo.de.lara.guarch@intel.com>
To: dev@dpdk.org
Cc: fiona.trahe@intel.com, shally.verma@cavium.com, ahmed.mansour@nxp.com,
Ashish.Gupta@cavium.com, Pablo de Lara <pablo.de.lara.guarch@intel.com>,
Shally Verma <shally.verma@caviumnetworks.com>,
Ashish Gupta <ashish.gupta@caviumnetworks.com>
Date: Fri, 13 Apr 2018 19:18:28 +0100
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<20180413181832.11335-1-pablo.de.lara.guarch@intel.com>
Subject: [dpdk-dev] [PATCH v5 09/13] compressdev: add device feature flags
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From: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Signed-off-by: Shally Verma <shally.verma@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gupta@caviumnetworks.com>
---
lib/librte_compressdev/rte_compressdev.c | 21 ++++++++++++++
lib/librte_compressdev/rte_compressdev.h | 33 ++++++++++++++++++++++
lib/librte_compressdev/rte_compressdev_version.map | 1 +
3 files changed, 55 insertions(+)
diff --git a/lib/librte_compressdev/rte_compressdev.c b/lib/librte_compressdev/rte_compressdev.c
index 79dc8f6e5..8e6b08f38 100644
--- a/lib/librte_compressdev/rte_compressdev.c
+++ b/lib/librte_compressdev/rte_compressdev.c
@@ -31,6 +31,27 @@ static struct rte_compressdev_global compressdev_globals = {
struct rte_compressdev_global *rte_compressdev_globals = &compressdev_globals;
+const char * __rte_experimental
+rte_compressdev_get_feature_name(uint64_t flag)
+{
+ switch (flag) {
+ case RTE_COMPDEV_FF_HW_ACCELERATED:
+ return "HW_ACCELERATED";
+ case RTE_COMPDEV_FF_CPU_SSE:
+ return "CPU_SSE";
+ case RTE_COMPDEV_FF_CPU_AVX:
+ return "CPU_AVX";
+ case RTE_COMPDEV_FF_CPU_AVX2:
+ return "CPU_AVX2";
+ case RTE_COMPDEV_FF_CPU_AVX512:
+ return "CPU_AVX512";
+ case RTE_COMPDEV_FF_CPU_NEON:
+ return "CPU_NEON";
+ default:
+ return NULL;
+ }
+}
+
static struct rte_compressdev *
rte_compressdev_get_dev(uint8_t dev_id)
{
diff --git a/lib/librte_compressdev/rte_compressdev.h b/lib/librte_compressdev/rte_compressdev.h
index 5d4218f8c..1559d96ba 100644
--- a/lib/librte_compressdev/rte_compressdev.h
+++ b/lib/librte_compressdev/rte_compressdev.h
@@ -21,9 +21,42 @@ extern "C" {
#include "rte_comp.h"
+/**
+ * compression device supported feature flags
+ *
+ * @note New features flags should be added to the end of the list
+ *
+ * Keep these flags synchronised with rte_compressdev_get_feature_name()
+ */
+#define RTE_COMPDEV_FF_HW_ACCELERATED (1ULL << 0)
+/**< Operations are off-loaded to an external hardware accelerator */
+#define RTE_COMPDEV_FF_CPU_SSE (1ULL << 1)
+/**< Utilises CPU SIMD SSE instructions */
+#define RTE_COMPDEV_FF_CPU_AVX (1ULL << 2)
+/**< Utilises CPU SIMD AVX instructions */
+#define RTE_COMPDEV_FF_CPU_AVX2 (1ULL << 3)
+/**< Utilises CPU SIMD AVX2 instructions */
+#define RTE_COMPDEV_FF_CPU_AVX512 (1ULL << 4)
+/**< Utilises CPU SIMD AVX512 instructions */
+#define RTE_COMPDEV_FF_CPU_NEON (1ULL << 5)
+/**< Utilises CPU NEON instructions */
+
+/**
+ * Get the name of a compress device feature flag.
+ *
+ * @param flag
+ * The mask describing the flag
+ *
+ * @return
+ * The name of this flag, or NULL if it's not a valid feature flag.
+ */
+const char * __rte_experimental
+rte_compressdev_get_feature_name(uint64_t flag);
+
/** comp device information */
struct rte_compressdev_info {
const char *driver_name; /**< Driver name. */
+ uint64_t feature_flags; /**< Feature flags */
uint16_t max_nb_queue_pairs;
/**< Maximum number of queues pairs supported by device.
* (If 0, there is no limit in maximum number of queue pairs)
diff --git a/lib/librte_compressdev/rte_compressdev_version.map b/lib/librte_compressdev/rte_compressdev_version.map
index ca4d9d3d8..f9223bcfe 100644
--- a/lib/librte_compressdev/rte_compressdev_version.map
+++ b/lib/librte_compressdev/rte_compressdev_version.map
@@ -9,6 +9,7 @@ EXPERIMENTAL {
rte_compressdev_dequeue_burst;
rte_compressdev_devices_get;
rte_compressdev_enqueue_burst;
+ rte_compressdev_get_feature_name;
rte_compressdev_info_get;
rte_compressdev_name_get;
rte_compressdev_pmd_allocate;
--
2.14.3