From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Ferruh Yigit
Sent: Thursday, January 28, 2021 7:28 PM

On 1/25/2021 1:20 AM, Li Zhang wrote:

quoted

Currently the flow Meter algorithms in rte_flow
only supports bytes per second(BPS).
Such as Single Rate Three Color Marker (srTCM rfc2697)
This RFC adds the packet per second definition in
Meter algorithms structure,
to support the rte_mtr APIs with type srTCM pps mode.
The below structure will be extended:
rte_mtr_algorithm
rte_mtr_meter_profile
Signed-off-by: Li Zhang <redacted>

cc'ed Cristian for review/comment.

quoted

---
  lib/librte_ethdev/rte_mtr.h | 28 ++++++++++++++++++++++++++++
  1 file changed, 28 insertions(+)

diff --git a/lib/librte_ethdev/rte_mtr.h

b/lib/librte_ethdev/rte_mtr.h

quoted

index 916a09c5c3..3e88904faf 100644

--- a/lib/librte_ethdev/rte_mtr.h
+++ b/lib/librte_ethdev/rte_mtr.h

@@ -119,6 +119,9 @@ enum rte_mtr_algorithm {

  	/** Two Rate Three Color Marker (trTCM) - IETF RFC 4115. */
  	RTE_MTR_TRTCM_RFC4115,
+
+	/** Single Rate Three Color Marker (srTCM) in Packet per second

mode */

quoted

+	RTE_MTR_SRTCM_PPS,
  };

  /**

@@ -171,6 +174,18 @@ struct rte_mtr_meter_profile {
  			/** Excess Burst Size (EBS) (bytes). */
  			uint64_t ebs;
  		} trtcm_rfc4115;
+
+		/** Items only valid when *alg* is set to srTCM - PPS. */
+		struct {
+			/** Committed Information Rate (CIR)(packets/second).

*/

quoted

+			uint64_t cir;
+
+			/** Committed Burst Size (CBS) (bytes). */
+			uint64_t cbs;
+
+			/** Excess Burst Size (EBS) (bytes). */
+			uint64_t ebs;
+		} srtcm_pps;

In PPS mode, the burst sizes (ebs, ebs) must be packets, not bytes.

quoted

  	};
  };

@@ -317,6 +332,13 @@ struct rte_mtr_capabilities {
  	 */
  	uint32_t meter_trtcm_rfc4115_n_max;

+	/** Maximum number of MTR objects that can have their meter

configured

quoted

+	 * to run the srTCM packet per second algorithm. The value of 0
+	 * indicates this metering algorithm is not supported.
+	 * The maximum value is *n_max*.
+	 */
+	uint32_t meter_srtcm_pps_n_max;
+
  	/** Maximum traffic rate that can be metered by a single MTR

object. For

quoted

  	 * srTCM RFC 2697, this is the maximum CIR rate. For trTCM RFC

2698,

quoted

  	 * this is the maximum PIR rate. For trTCM RFC 4115, this is the

maximum

quoted

@@ -342,6 +364,12 @@ struct rte_mtr_capabilities {
  	 */
  	int color_aware_trtcm_rfc4115_supported;

+	/**
+	 * When non-zero, it indicates that color aware mode is supported

for

quoted

+	 * the srTCM packet per second  metering algorithm.

No need for two spaces between the words second and metering.

quoted

+	 */
+	int color_aware_srtcm_pps_supported;
+
  	/** When non-zero, it indicates that the policer packet recolor

actions

quoted

  	 * are supported.
  	 * @see enum rte_mtr_policer_action