-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <rte_prefetch.h>
#include <rte_branch_prediction.h>
#include <rte_mbuf.h>
+#include <rte_bitmap.h>
+#include <rte_reciprocal.h>
#include "rte_sched.h"
-#include "rte_bitmap.h"
#include "rte_sched_common.h"
#include "rte_approx.h"
#endif
#ifdef RTE_SCHED_VECTOR
-#include <immintrin.h>
+#include <rte_vect.h>
+
+#ifdef RTE_ARCH_X86
+#define SCHED_VECTOR_SSE4
+#elif defined(RTE_MACHINE_CPUFLAG_NEON)
+#define SCHED_VECTOR_NEON
+#endif
+
#endif
#define RTE_SCHED_TB_RATE_CONFIG_ERR (1e-7)
#define RTE_SCHED_WRR_SHIFT 3
+#define RTE_SCHED_MAX_QUEUES_PER_TC RTE_SCHED_BE_QUEUES_PER_PIPE
#define RTE_SCHED_GRINDER_PCACHE_SIZE (64 / RTE_SCHED_QUEUES_PER_PIPE)
#define RTE_SCHED_PIPE_INVALID UINT32_MAX
#define RTE_SCHED_BMP_POS_INVALID UINT32_MAX
-struct rte_sched_subport {
- /* Token bucket (TB) */
- uint64_t tb_time; /* time of last update */
- uint32_t tb_period;
- uint32_t tb_credits_per_period;
- uint32_t tb_size;
- uint32_t tb_credits;
-
- /* Traffic classes (TCs) */
- uint64_t tc_time; /* time of next update */
- uint32_t tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
- uint32_t tc_credits[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
- uint32_t tc_period;
-
- /* TC oversubscription */
- uint32_t tc_ov_wm;
- uint32_t tc_ov_wm_min;
- uint32_t tc_ov_wm_max;
- uint8_t tc_ov_period_id;
- uint8_t tc_ov;
- uint32_t tc_ov_n;
- double tc_ov_rate;
-
- /* Statistics */
- struct rte_sched_subport_stats stats;
-};
+/* Scaling for cycles_per_byte calculation
+ * Chosen so that minimum rate is 480 bit/sec
+ */
+#define RTE_SCHED_TIME_SHIFT 8
struct rte_sched_pipe_profile {
/* Token bucket (TB) */
uint32_t tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
uint8_t tc_ov_weight;
- /* Pipe queues */
- uint8_t wrr_cost[RTE_SCHED_QUEUES_PER_PIPE];
+ /* Pipe best-effort traffic class queues */
+ uint8_t wrr_cost[RTE_SCHED_BE_QUEUES_PER_PIPE];
};
struct rte_sched_pipe {
uint32_t tc_credits[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
/* Weighted Round Robin (WRR) */
- uint8_t wrr_tokens[RTE_SCHED_QUEUES_PER_PIPE];
+ uint8_t wrr_tokens[RTE_SCHED_BE_QUEUES_PER_PIPE];
/* TC oversubscription */
uint32_t tc_ov_credits;
uint8_t tc_ov_period_id;
- uint8_t reserved[3];
} __rte_cache_aligned;
struct rte_sched_queue {
e_GRINDER_READ_MBUF
};
-/*
- * Path through the scheduler hierarchy used by the scheduler enqueue
- * operation to identify the destination queue for the current
- * packet. Stored in the field pkt.hash.sched of struct rte_mbuf of
- * each packet, typically written by the classification stage and read
- * by scheduler enqueue.
- */
-struct rte_sched_port_hierarchy {
- uint32_t queue:2; /**< Queue ID (0 .. 3) */
- uint32_t traffic_class:2; /**< Traffic class ID (0 .. 3)*/
- uint32_t pipe:20; /**< Pipe ID */
- uint32_t subport:6; /**< Subport ID */
- uint32_t color:2; /**< Color */
-};
-
struct rte_sched_grinder {
/* Pipe cache */
uint16_t pcache_qmask[RTE_SCHED_GRINDER_PCACHE_SIZE];
struct rte_sched_pipe_profile *pipe_params;
/* TC cache */
- uint8_t tccache_qmask[4];
- uint32_t tccache_qindex[4];
+ uint8_t tccache_qmask[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ uint32_t tccache_qindex[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
uint32_t tccache_w;
uint32_t tccache_r;
/* Current TC */
uint32_t tc_index;
- struct rte_sched_queue *queue[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
- struct rte_mbuf **qbase[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
- uint32_t qindex[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ struct rte_sched_queue *queue[RTE_SCHED_MAX_QUEUES_PER_TC];
+ struct rte_mbuf **qbase[RTE_SCHED_MAX_QUEUES_PER_TC];
+ uint32_t qindex[RTE_SCHED_MAX_QUEUES_PER_TC];
uint16_t qsize;
uint32_t qmask;
uint32_t qpos;
struct rte_mbuf *pkt;
/* WRR */
- uint16_t wrr_tokens[RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS];
- uint16_t wrr_mask[RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS];
- uint8_t wrr_cost[RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS];
+ uint16_t wrr_tokens[RTE_SCHED_BE_QUEUES_PER_PIPE];
+ uint16_t wrr_mask[RTE_SCHED_BE_QUEUES_PER_PIPE];
+ uint8_t wrr_cost[RTE_SCHED_BE_QUEUES_PER_PIPE];
};
+struct rte_sched_subport {
+ /* Token bucket (TB) */
+ uint64_t tb_time; /* time of last update */
+ uint32_t tb_period;
+ uint32_t tb_credits_per_period;
+ uint32_t tb_size;
+ uint32_t tb_credits;
+
+ /* Traffic classes (TCs) */
+ uint64_t tc_time; /* time of next update */
+ uint32_t tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ uint32_t tc_credits[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ uint32_t tc_period;
+
+ /* TC oversubscription */
+ uint32_t tc_ov_wm;
+ uint32_t tc_ov_wm_min;
+ uint32_t tc_ov_wm_max;
+ uint8_t tc_ov_period_id;
+ uint8_t tc_ov;
+ uint32_t tc_ov_n;
+ double tc_ov_rate;
+
+ /* Statistics */
+ struct rte_sched_subport_stats stats;
+
+ /* Subport pipes */
+ uint32_t n_pipes_per_subport_enabled;
+ uint32_t n_pipe_profiles;
+ uint32_t n_max_pipe_profiles;
+
+ /* Pipe best-effort TC rate */
+ uint32_t pipe_tc_be_rate_max;
+
+ /* Pipe queues size */
+ uint16_t qsize[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+
+#ifdef RTE_SCHED_RED
+ struct rte_red_config red_config[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE][RTE_COLORS];
+#endif
+
+ /* Scheduling loop detection */
+ uint32_t pipe_loop;
+ uint32_t pipe_exhaustion;
+
+ /* Bitmap */
+ struct rte_bitmap *bmp;
+ uint32_t grinder_base_bmp_pos[RTE_SCHED_PORT_N_GRINDERS] __rte_aligned_16;
+
+ /* Grinders */
+ struct rte_sched_grinder grinder[RTE_SCHED_PORT_N_GRINDERS];
+ uint32_t busy_grinders;
+
+ /* Queue base calculation */
+ uint32_t qsize_add[RTE_SCHED_QUEUES_PER_PIPE];
+ uint32_t qsize_sum;
+
+ struct rte_sched_pipe *pipe;
+ struct rte_sched_queue *queue;
+ struct rte_sched_queue_extra *queue_extra;
+ struct rte_sched_pipe_profile *pipe_profiles;
+ uint8_t *bmp_array;
+ struct rte_mbuf **queue_array;
+ uint8_t memory[0] __rte_cache_aligned;
+} __rte_cache_aligned;
+
struct rte_sched_port {
/* User parameters */
uint32_t n_subports_per_port;
uint32_t n_pipes_per_subport;
+ uint32_t n_pipes_per_subport_log2;
+ uint16_t pipe_queue[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ uint8_t pipe_tc[RTE_SCHED_QUEUES_PER_PIPE];
+ uint8_t tc_queue[RTE_SCHED_QUEUES_PER_PIPE];
uint32_t rate;
uint32_t mtu;
uint32_t frame_overhead;
+ int socket;
uint16_t qsize[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
uint32_t n_pipe_profiles;
- uint32_t pipe_tc3_rate_max;
+ uint32_t n_max_pipe_profiles;
+ uint32_t pipe_tc_be_rate_max;
#ifdef RTE_SCHED_RED
- struct rte_red_config red_config[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE][e_RTE_METER_COLORS];
+ struct rte_red_config red_config[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE][RTE_COLORS];
#endif
/* Timing */
uint64_t time_cpu_cycles; /* Current CPU time measured in CPU cyles */
uint64_t time_cpu_bytes; /* Current CPU time measured in bytes */
uint64_t time; /* Current NIC TX time measured in bytes */
- double cycles_per_byte; /* CPU cycles per byte */
+ struct rte_reciprocal inv_cycles_per_byte; /* CPU cycles per byte */
/* Scheduling loop detection */
uint32_t pipe_loop;
uint32_t qsize_sum;
/* Large data structures */
+ struct rte_sched_subport *subports[0];
struct rte_sched_subport *subport;
struct rte_sched_pipe *pipe;
struct rte_sched_queue *queue;
e_RTE_SCHED_PORT_ARRAY_TOTAL,
};
+enum rte_sched_subport_array {
+ e_RTE_SCHED_SUBPORT_ARRAY_PIPE = 0,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_EXTRA,
+ e_RTE_SCHED_SUBPORT_ARRAY_PIPE_PROFILES,
+ e_RTE_SCHED_SUBPORT_ARRAY_BMP_ARRAY,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_ARRAY,
+ e_RTE_SCHED_SUBPORT_ARRAY_TOTAL,
+};
+
#ifdef RTE_SCHED_COLLECT_STATS
static inline uint32_t
#endif
+static inline uint32_t
+rte_sched_subport_pipe_queues(struct rte_sched_subport *subport)
+{
+ return RTE_SCHED_QUEUES_PER_PIPE * subport->n_pipes_per_subport_enabled;
+}
+
+static inline struct rte_mbuf **
+rte_sched_subport_pipe_qbase(struct rte_sched_subport *subport, uint32_t qindex)
+{
+ uint32_t pindex = qindex >> 4;
+ uint32_t qpos = qindex & (RTE_SCHED_QUEUES_PER_PIPE - 1);
+
+ return (subport->queue_array + pindex *
+ subport->qsize_sum + subport->qsize_add[qpos]);
+}
+
+static inline uint16_t
+rte_sched_subport_pipe_qsize(struct rte_sched_port *port,
+struct rte_sched_subport *subport, uint32_t qindex)
+{
+ uint32_t tc = port->pipe_tc[qindex & (RTE_SCHED_QUEUES_PER_PIPE - 1)];
+
+ return subport->qsize[tc];
+}
+
static inline uint32_t
rte_sched_port_queues_per_port(struct rte_sched_port *port)
{
return RTE_SCHED_QUEUES_PER_PIPE * port->n_pipes_per_subport * port->n_subports_per_port;
}
-static int
-rte_sched_port_check_params(struct rte_sched_port_params *params)
+static inline struct rte_mbuf **
+rte_sched_port_qbase(struct rte_sched_port *port, uint32_t qindex)
{
- uint32_t i, j;
+ uint32_t pindex = qindex >> 4;
+ uint32_t qpos = qindex & 0xF;
- if (params == NULL)
- return -1;
+ return (port->queue_array + pindex *
+ port->qsize_sum + port->qsize_add[qpos]);
+}
- /* socket */
- if ((params->socket < 0) || (params->socket >= RTE_MAX_NUMA_NODES))
- return -3;
+static inline uint16_t
+rte_sched_port_qsize(struct rte_sched_port *port, uint32_t qindex)
+{
+ uint32_t tc = port->pipe_tc[qindex & (RTE_SCHED_QUEUES_PER_PIPE - 1)];
- /* rate */
- if (params->rate == 0)
- return -4;
+ return port->qsize[tc];
+}
- /* mtu */
- if (params->mtu == 0)
- return -5;
+static inline uint16_t
+rte_sched_port_pipe_queue(struct rte_sched_port *port, uint32_t traffic_class)
+{
+ uint16_t pipe_queue = port->pipe_queue[traffic_class];
- /* n_subports_per_port: non-zero, power of 2 */
- if (params->n_subports_per_port == 0 ||
- !rte_is_power_of_2(params->n_subports_per_port))
- return -6;
+ return pipe_queue;
+}
- /* n_pipes_per_subport: non-zero, power of 2 */
- if (params->n_pipes_per_subport == 0 ||
- !rte_is_power_of_2(params->n_pipes_per_subport))
- return -7;
+static inline uint8_t
+rte_sched_port_pipe_tc(struct rte_sched_port *port, uint32_t qindex)
+{
+ uint8_t pipe_tc = port->pipe_tc[qindex & (RTE_SCHED_QUEUES_PER_PIPE - 1)];
- /* qsize: non-zero, power of 2,
- * no bigger than 32K (due to 16-bit read/write pointers)
- */
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
- uint16_t qsize = params->qsize[i];
+ return pipe_tc;
+}
- if (qsize == 0 || !rte_is_power_of_2(qsize))
- return -8;
- }
+static inline uint8_t
+rte_sched_port_tc_queue(struct rte_sched_port *port, uint32_t qindex)
+{
+ uint8_t tc_queue = port->tc_queue[qindex & (RTE_SCHED_QUEUES_PER_PIPE - 1)];
- /* pipe_profiles and n_pipe_profiles */
- if (params->pipe_profiles == NULL ||
- params->n_pipe_profiles == 0 ||
- params->n_pipe_profiles > RTE_SCHED_PIPE_PROFILES_PER_PORT)
- return -9;
+ return tc_queue;
+}
- for (i = 0; i < params->n_pipe_profiles; i++) {
- struct rte_sched_pipe_params *p = params->pipe_profiles + i;
+static int
+pipe_profile_check(struct rte_sched_pipe_params *params,
+ uint32_t rate, uint16_t *qsize)
+{
+ uint32_t i;
+
+ /* Pipe parameters */
+ if (params == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter params\n", __func__);
+ return -EINVAL;
+ }
- /* TB rate: non-zero, not greater than port rate */
- if (p->tb_rate == 0 || p->tb_rate > params->rate)
- return -10;
+ /* TB rate: non-zero, not greater than port rate */
+ if (params->tb_rate == 0 ||
+ params->tb_rate > rate) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tb rate\n", __func__);
+ return -EINVAL;
+ }
- /* TB size: non-zero */
- if (p->tb_size == 0)
- return -11;
+ /* TB size: non-zero */
+ if (params->tb_size == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tb size\n", __func__);
+ return -EINVAL;
+ }
- /* TC rate: non-zero, less than pipe rate */
- for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++) {
- if (p->tc_rate[j] == 0 || p->tc_rate[j] > p->tb_rate)
- return -12;
+ /* TC rate: non-zero if qsize non-zero, less than pipe rate */
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
+ if ((qsize[i] == 0 && params->tc_rate[i] != 0) ||
+ (qsize[i] != 0 && (params->tc_rate[i] == 0 ||
+ params->tc_rate[i] > params->tb_rate))) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for qsize or tc_rate\n", __func__);
+ return -EINVAL;
}
+ }
+
+ if (params->tc_rate[RTE_SCHED_TRAFFIC_CLASS_BE] == 0 ||
+ qsize[RTE_SCHED_TRAFFIC_CLASS_BE] == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for be traffic class rate\n", __func__);
+ return -EINVAL;
+ }
- /* TC period: non-zero */
- if (p->tc_period == 0)
- return -13;
+ /* TC period: non-zero */
+ if (params->tc_period == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tc period\n", __func__);
+ return -EINVAL;
+ }
-#ifdef RTE_SCHED_SUBPORT_TC_OV
- /* TC3 oversubscription weight: non-zero */
- if (p->tc_ov_weight == 0)
- return -14;
-#endif
+ /* Best effort tc oversubscription weight: non-zero */
+ if (params->tc_ov_weight == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tc ov weight\n", __func__);
+ return -EINVAL;
+ }
- /* Queue WRR weights: non-zero */
- for (j = 0; j < RTE_SCHED_QUEUES_PER_PIPE; j++) {
- if (p->wrr_weights[j] == 0)
- return -15;
+ /* Queue WRR weights: non-zero */
+ for (i = 0; i < RTE_SCHED_BE_QUEUES_PER_PIPE; i++) {
+ if (params->wrr_weights[i] == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for wrr weight\n", __func__);
+ return -EINVAL;
}
}
return 0;
}
+static int
+rte_sched_port_check_params(struct rte_sched_port_params *params)
+{
+ if (params == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter params\n", __func__);
+ return -EINVAL;
+ }
+
+ /* socket */
+ if (params->socket < 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for socket id\n", __func__);
+ return -EINVAL;
+ }
+
+ /* rate */
+ if (params->rate == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for rate\n", __func__);
+ return -EINVAL;
+ }
+
+ /* mtu */
+ if (params->mtu == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for mtu\n", __func__);
+ return -EINVAL;
+ }
+
+ /* n_subports_per_port: non-zero, limited to 16 bits, power of 2 */
+ if (params->n_subports_per_port == 0 ||
+ params->n_subports_per_port > 1u << 16 ||
+ !rte_is_power_of_2(params->n_subports_per_port)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for number of subports\n", __func__);
+ return -EINVAL;
+ }
+
+ /* n_pipes_per_subport: non-zero, power of 2 */
+ if (params->n_pipes_per_subport == 0 ||
+ !rte_is_power_of_2(params->n_pipes_per_subport)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for maximum pipes number\n", __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static uint32_t
rte_sched_port_get_array_base(struct rte_sched_port_params *params, enum rte_sched_port_array array)
{
uint32_t size_queue_extra
= n_queues_per_port * sizeof(struct rte_sched_queue_extra);
uint32_t size_pipe_profiles
- = RTE_SCHED_PIPE_PROFILES_PER_PORT * sizeof(struct rte_sched_pipe_profile);
+ = params->n_max_pipe_profiles * sizeof(struct rte_sched_pipe_profile);
uint32_t size_bmp_array = rte_bitmap_get_memory_footprint(n_queues_per_port);
uint32_t size_per_pipe_queue_array, size_queue_array;
size_per_pipe_queue_array = 0;
for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
- size_per_pipe_queue_array += RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS
- * params->qsize[i] * sizeof(struct rte_mbuf *);
+ if (i < RTE_SCHED_TRAFFIC_CLASS_BE)
+ size_per_pipe_queue_array +=
+ params->qsize[i] * sizeof(struct rte_mbuf *);
+ else
+ size_per_pipe_queue_array += RTE_SCHED_MAX_QUEUES_PER_TC *
+ params->qsize[i] * sizeof(struct rte_mbuf *);
}
size_queue_array = n_pipes_per_port * size_per_pipe_queue_array;
return base;
}
-uint32_t
-rte_sched_port_get_memory_footprint(struct rte_sched_port_params *params)
+static uint32_t
+rte_sched_subport_get_array_base(struct rte_sched_subport_params *params,
+ enum rte_sched_subport_array array)
{
- uint32_t size0, size1;
- int status;
+ uint32_t n_pipes_per_subport = params->n_pipes_per_subport_enabled;
+ uint32_t n_subport_pipe_queues =
+ RTE_SCHED_QUEUES_PER_PIPE * n_pipes_per_subport;
- status = rte_sched_port_check_params(params);
- if (status != 0) {
- RTE_LOG(NOTICE, SCHED,
- "Port scheduler params check failed (%d)\n", status);
+ uint32_t size_pipe = n_pipes_per_subport * sizeof(struct rte_sched_pipe);
+ uint32_t size_queue =
+ n_subport_pipe_queues * sizeof(struct rte_sched_queue);
+ uint32_t size_queue_extra
+ = n_subport_pipe_queues * sizeof(struct rte_sched_queue_extra);
+ uint32_t size_pipe_profiles = params->n_max_pipe_profiles *
+ sizeof(struct rte_sched_pipe_profile);
+ uint32_t size_bmp_array =
+ rte_bitmap_get_memory_footprint(n_subport_pipe_queues);
+ uint32_t size_per_pipe_queue_array, size_queue_array;
- return 0;
+ uint32_t base, i;
+
+ size_per_pipe_queue_array = 0;
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
+ if (i < RTE_SCHED_TRAFFIC_CLASS_BE)
+ size_per_pipe_queue_array +=
+ params->qsize[i] * sizeof(struct rte_mbuf *);
+ else
+ size_per_pipe_queue_array += RTE_SCHED_MAX_QUEUES_PER_TC *
+ params->qsize[i] * sizeof(struct rte_mbuf *);
}
+ size_queue_array = n_pipes_per_subport * size_per_pipe_queue_array;
- size0 = sizeof(struct rte_sched_port);
- size1 = rte_sched_port_get_array_base(params, e_RTE_SCHED_PORT_ARRAY_TOTAL);
+ base = 0;
- return (size0 + size1);
-}
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_PIPE)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_pipe);
-static void
-rte_sched_port_config_qsize(struct rte_sched_port *port)
-{
- /* TC 0 */
- port->qsize_add[0] = 0;
- port->qsize_add[1] = port->qsize_add[0] + port->qsize[0];
- port->qsize_add[2] = port->qsize_add[1] + port->qsize[0];
- port->qsize_add[3] = port->qsize_add[2] + port->qsize[0];
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_QUEUE)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_queue);
- /* TC 1 */
- port->qsize_add[4] = port->qsize_add[3] + port->qsize[0];
- port->qsize_add[5] = port->qsize_add[4] + port->qsize[1];
- port->qsize_add[6] = port->qsize_add[5] + port->qsize[1];
- port->qsize_add[7] = port->qsize_add[6] + port->qsize[1];
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_EXTRA)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_queue_extra);
- /* TC 2 */
- port->qsize_add[8] = port->qsize_add[7] + port->qsize[1];
- port->qsize_add[9] = port->qsize_add[8] + port->qsize[2];
- port->qsize_add[10] = port->qsize_add[9] + port->qsize[2];
- port->qsize_add[11] = port->qsize_add[10] + port->qsize[2];
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_PIPE_PROFILES)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_pipe_profiles);
- /* TC 3 */
- port->qsize_add[12] = port->qsize_add[11] + port->qsize[2];
- port->qsize_add[13] = port->qsize_add[12] + port->qsize[3];
- port->qsize_add[14] = port->qsize_add[13] + port->qsize[3];
- port->qsize_add[15] = port->qsize_add[14] + port->qsize[3];
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_BMP_ARRAY)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_bmp_array);
+
+ if (array == e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_ARRAY)
+ return base;
+ base += RTE_CACHE_LINE_ROUNDUP(size_queue_array);
- port->qsize_sum = port->qsize_add[15] + port->qsize[3];
+ return base;
+}
+
+static void
+rte_sched_subport_config_qsize(struct rte_sched_subport *subport)
+{
+ uint32_t i;
+
+ subport->qsize_add[0] = 0;
+
+ /* Strict prority traffic class */
+ for (i = 1; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ subport->qsize_add[i] = subport->qsize_add[i-1] + subport->qsize[i-1];
+
+ /* Best-effort traffic class */
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 1] =
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE] +
+ subport->qsize[RTE_SCHED_TRAFFIC_CLASS_BE];
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 2] =
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 1] +
+ subport->qsize[RTE_SCHED_TRAFFIC_CLASS_BE];
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 3] =
+ subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 2] +
+ subport->qsize[RTE_SCHED_TRAFFIC_CLASS_BE];
+
+ subport->qsize_sum = subport->qsize_add[RTE_SCHED_TRAFFIC_CLASS_BE + 3] +
+ subport->qsize[RTE_SCHED_TRAFFIC_CLASS_BE];
}
static void
struct rte_sched_pipe_profile *p = port->pipe_profiles + i;
RTE_LOG(DEBUG, SCHED, "Low level config for pipe profile %u:\n"
- " Token bucket: period = %u, credits per period = %u, size = %u\n"
- " Traffic classes: period = %u, credits per period = [%u, %u, %u, %u]\n"
- " Traffic class 3 oversubscription: weight = %hhu\n"
- " WRR cost: [%hhu, %hhu, %hhu, %hhu], [%hhu, %hhu, %hhu, %hhu], [%hhu, %hhu, %hhu, %hhu], [%hhu, %hhu, %hhu, %hhu]\n",
+ " Token bucket: period = %u, credits per period = %u, size = %u\n"
+ " Traffic classes: period = %u,\n"
+ " credits per period = [%u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u]\n"
+ " Best-effort traffic class oversubscription: weight = %hhu\n"
+ " WRR cost: [%hhu, %hhu, %hhu, %hhu]\n",
i,
/* Token bucket */
p->tc_credits_per_period[1],
p->tc_credits_per_period[2],
p->tc_credits_per_period[3],
-
- /* Traffic class 3 oversubscription */
+ p->tc_credits_per_period[4],
+ p->tc_credits_per_period[5],
+ p->tc_credits_per_period[6],
+ p->tc_credits_per_period[7],
+ p->tc_credits_per_period[8],
+ p->tc_credits_per_period[9],
+ p->tc_credits_per_period[10],
+ p->tc_credits_per_period[11],
+ p->tc_credits_per_period[12],
+
+ /* Best-effort traffic class oversubscription */
p->tc_ov_weight,
/* WRR */
- p->wrr_cost[ 0], p->wrr_cost[ 1], p->wrr_cost[ 2], p->wrr_cost[ 3],
- p->wrr_cost[ 4], p->wrr_cost[ 5], p->wrr_cost[ 6], p->wrr_cost[ 7],
- p->wrr_cost[ 8], p->wrr_cost[ 9], p->wrr_cost[10], p->wrr_cost[11],
- p->wrr_cost[12], p->wrr_cost[13], p->wrr_cost[14], p->wrr_cost[15]);
+ p->wrr_cost[0], p->wrr_cost[1], p->wrr_cost[2], p->wrr_cost[3]);
}
static inline uint64_t
}
static void
-rte_sched_port_config_pipe_profile_table(struct rte_sched_port *port, struct rte_sched_port_params *params)
+rte_sched_pipe_profile_convert(struct rte_sched_port *port,
+ struct rte_sched_pipe_params *src,
+ struct rte_sched_pipe_profile *dst,
+ uint32_t rate)
{
- uint32_t i, j;
+ uint32_t wrr_cost[RTE_SCHED_BE_QUEUES_PER_PIPE];
+ uint32_t lcd1, lcd2, lcd;
+ uint32_t i;
- for (i = 0; i < port->n_pipe_profiles; i++) {
- struct rte_sched_pipe_params *src = params->pipe_profiles + i;
- struct rte_sched_pipe_profile *dst = port->pipe_profiles + i;
-
- /* Token Bucket */
- if (src->tb_rate == params->rate) {
- dst->tb_credits_per_period = 1;
- dst->tb_period = 1;
- } else {
- double tb_rate = (double) src->tb_rate
- / (double) params->rate;
- double d = RTE_SCHED_TB_RATE_CONFIG_ERR;
-
- rte_approx(tb_rate, d,
- &dst->tb_credits_per_period, &dst->tb_period);
- }
- dst->tb_size = src->tb_size;
+ /* Token Bucket */
+ if (src->tb_rate == rate) {
+ dst->tb_credits_per_period = 1;
+ dst->tb_period = 1;
+ } else {
+ double tb_rate = (double) src->tb_rate
+ / (double) rate;
+ double d = RTE_SCHED_TB_RATE_CONFIG_ERR;
+
+ rte_approx(tb_rate, d,
+ &dst->tb_credits_per_period, &dst->tb_period);
+ }
- /* Traffic Classes */
- dst->tc_period = rte_sched_time_ms_to_bytes(src->tc_period,
- params->rate);
+ dst->tb_size = src->tb_size;
- for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++)
- dst->tc_credits_per_period[j]
+ /* Traffic Classes */
+ dst->tc_period = rte_sched_time_ms_to_bytes(src->tc_period,
+ rate);
+
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ if (port->qsize[i])
+ dst->tc_credits_per_period[i]
= rte_sched_time_ms_to_bytes(src->tc_period,
- src->tc_rate[j]);
+ src->tc_rate[i]);
-#ifdef RTE_SCHED_SUBPORT_TC_OV
- dst->tc_ov_weight = src->tc_ov_weight;
-#endif
+ dst->tc_ov_weight = src->tc_ov_weight;
- /* WRR */
- for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++) {
- uint32_t wrr_cost[RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS];
- uint32_t lcd, lcd1, lcd2;
- uint32_t qindex;
-
- qindex = j * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS;
-
- wrr_cost[0] = src->wrr_weights[qindex];
- wrr_cost[1] = src->wrr_weights[qindex + 1];
- wrr_cost[2] = src->wrr_weights[qindex + 2];
- wrr_cost[3] = src->wrr_weights[qindex + 3];
-
- lcd1 = rte_get_lcd(wrr_cost[0], wrr_cost[1]);
- lcd2 = rte_get_lcd(wrr_cost[2], wrr_cost[3]);
- lcd = rte_get_lcd(lcd1, lcd2);
-
- wrr_cost[0] = lcd / wrr_cost[0];
- wrr_cost[1] = lcd / wrr_cost[1];
- wrr_cost[2] = lcd / wrr_cost[2];
- wrr_cost[3] = lcd / wrr_cost[3];
-
- dst->wrr_cost[qindex] = (uint8_t) wrr_cost[0];
- dst->wrr_cost[qindex + 1] = (uint8_t) wrr_cost[1];
- dst->wrr_cost[qindex + 2] = (uint8_t) wrr_cost[2];
- dst->wrr_cost[qindex + 3] = (uint8_t) wrr_cost[3];
+ /* WRR queues */
+ wrr_cost[0] = src->wrr_weights[0];
+ wrr_cost[1] = src->wrr_weights[1];
+ wrr_cost[2] = src->wrr_weights[2];
+ wrr_cost[3] = src->wrr_weights[3];
+
+ lcd1 = rte_get_lcd(wrr_cost[0], wrr_cost[1]);
+ lcd2 = rte_get_lcd(wrr_cost[2], wrr_cost[3]);
+ lcd = rte_get_lcd(lcd1, lcd2);
+
+ wrr_cost[0] = lcd / wrr_cost[0];
+ wrr_cost[1] = lcd / wrr_cost[1];
+ wrr_cost[2] = lcd / wrr_cost[2];
+ wrr_cost[3] = lcd / wrr_cost[3];
+
+ dst->wrr_cost[0] = (uint8_t) wrr_cost[0];
+ dst->wrr_cost[1] = (uint8_t) wrr_cost[1];
+ dst->wrr_cost[2] = (uint8_t) wrr_cost[2];
+ dst->wrr_cost[3] = (uint8_t) wrr_cost[3];
+}
+
+static int
+rte_sched_subport_check_params(struct rte_sched_subport_params *params,
+ uint32_t n_max_pipes_per_subport,
+ uint32_t rate)
+{
+ uint32_t i;
+
+ /* Check user parameters */
+ if (params == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter params\n", __func__);
+ return -EINVAL;
+ }
+
+ if (params->tb_rate == 0 || params->tb_rate > rate) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tb rate\n", __func__);
+ return -EINVAL;
+ }
+
+ if (params->tb_size == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tb size\n", __func__);
+ return -EINVAL;
+ }
+
+ /* qsize: if non-zero, power of 2,
+ * no bigger than 32K (due to 16-bit read/write pointers)
+ */
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
+ uint16_t qsize = params->qsize[i];
+
+ if (qsize != 0 && !rte_is_power_of_2(qsize)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for qsize\n", __func__);
+ return -EINVAL;
}
+ }
- rte_sched_port_log_pipe_profile(port, i);
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
+ uint32_t tc_rate = params->tc_rate[i];
+ uint16_t qsize = params->qsize[i];
+
+ if ((qsize == 0 && tc_rate != 0) ||
+ (qsize != 0 && tc_rate == 0) ||
+ (tc_rate > params->tb_rate)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tc rate\n", __func__);
+ return -EINVAL;
+ }
}
- port->pipe_tc3_rate_max = 0;
- for (i = 0; i < port->n_pipe_profiles; i++) {
- struct rte_sched_pipe_params *src = params->pipe_profiles + i;
- uint32_t pipe_tc3_rate = src->tc_rate[3];
+ if (params->qsize[RTE_SCHED_TRAFFIC_CLASS_BE] == 0 ||
+ params->tc_rate[RTE_SCHED_TRAFFIC_CLASS_BE] == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect qsize or tc rate(best effort)\n", __func__);
+ return -EINVAL;
+ }
+
+ if (params->tc_period == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tc period\n", __func__);
+ return -EINVAL;
+ }
+
+ /* n_pipes_per_subport: non-zero, power of 2 */
+ if (params->n_pipes_per_subport_enabled == 0 ||
+ params->n_pipes_per_subport_enabled > n_max_pipes_per_subport ||
+ !rte_is_power_of_2(params->n_pipes_per_subport_enabled)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for pipes number\n", __func__);
+ return -EINVAL;
+ }
+
+ /* pipe_profiles and n_pipe_profiles */
+ if (params->pipe_profiles == NULL ||
+ params->n_pipe_profiles == 0 ||
+ params->n_max_pipe_profiles == 0 ||
+ params->n_pipe_profiles > params->n_max_pipe_profiles) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for pipe profiles\n", __func__);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < params->n_pipe_profiles; i++) {
+ struct rte_sched_pipe_params *p = params->pipe_profiles + i;
+ int status;
+
+ status = pipe_profile_check(p, rate, ¶ms->qsize[0]);
+ if (status != 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Pipe profile check failed(%d)\n", __func__, status);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+uint32_t
+rte_sched_port_get_memory_footprint(struct rte_sched_port_params *params)
+{
+ uint32_t size0, size1;
+ int status;
+
+ status = rte_sched_port_check_params(params);
+ if (status != 0) {
+ RTE_LOG(NOTICE, SCHED,
+ "Port scheduler params check failed (%d)\n", status);
- if (port->pipe_tc3_rate_max < pipe_tc3_rate)
- port->pipe_tc3_rate_max = pipe_tc3_rate;
+ return 0;
}
+
+ size0 = sizeof(struct rte_sched_port);
+ size1 = rte_sched_port_get_array_base(params,
+ e_RTE_SCHED_PORT_ARRAY_TOTAL);
+
+ return size0 + size1;
}
struct rte_sched_port *
rte_sched_port_config(struct rte_sched_port_params *params)
{
struct rte_sched_port *port = NULL;
- uint32_t mem_size, bmp_mem_size, n_queues_per_port, i;
+ uint32_t size0, size1;
+ uint32_t cycles_per_byte;
+ uint32_t i, j;
+ int status;
- /* Check user parameters. Determine the amount of memory to allocate */
- mem_size = rte_sched_port_get_memory_footprint(params);
- if (mem_size == 0)
+ status = rte_sched_port_check_params(params);
+ if (status != 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Port scheduler params check failed (%d)\n",
+ __func__, status);
return NULL;
+ }
+
+ size0 = sizeof(struct rte_sched_port);
+ size1 = params->n_subports_per_port * sizeof(struct rte_sched_subport *);
/* Allocate memory to store the data structures */
- port = rte_zmalloc("qos_params", mem_size, RTE_CACHE_LINE_SIZE);
- if (port == NULL)
- return NULL;
+ port = rte_zmalloc_socket("qos_params", size0 + size1, RTE_CACHE_LINE_SIZE,
+ params->socket);
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED, "%s: Memory allocation fails\n", __func__);
- /* compile time checks */
- RTE_BUILD_BUG_ON(RTE_SCHED_PORT_N_GRINDERS == 0);
- RTE_BUILD_BUG_ON(RTE_SCHED_PORT_N_GRINDERS & (RTE_SCHED_PORT_N_GRINDERS - 1));
+ return NULL;
+ }
/* User parameters */
port->n_subports_per_port = params->n_subports_per_port;
port->n_pipes_per_subport = params->n_pipes_per_subport;
- port->rate = params->rate;
- port->mtu = params->mtu + params->frame_overhead;
- port->frame_overhead = params->frame_overhead;
- memcpy(port->qsize, params->qsize, sizeof(params->qsize));
- port->n_pipe_profiles = params->n_pipe_profiles;
+ port->n_pipes_per_subport_log2 =
+ __builtin_ctz(params->n_pipes_per_subport);
+ port->socket = params->socket;
-#ifdef RTE_SCHED_RED
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
- uint32_t j;
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ port->pipe_queue[i] = i;
- for (j = 0; j < e_RTE_METER_COLORS; j++) {
- /* if min/max are both zero, then RED is disabled */
- if ((params->red_params[i][j].min_th |
- params->red_params[i][j].max_th) == 0) {
- continue;
- }
+ for (i = 0, j = 0; i < RTE_SCHED_QUEUES_PER_PIPE; i++) {
+ port->pipe_tc[i] = j;
- if (rte_red_config_init(&port->red_config[i][j],
- params->red_params[i][j].wq_log2,
- params->red_params[i][j].min_th,
- params->red_params[i][j].max_th,
- params->red_params[i][j].maxp_inv) != 0) {
- return NULL;
- }
- }
+ if (j < RTE_SCHED_TRAFFIC_CLASS_BE)
+ j++;
}
-#endif
+
+ for (i = 0, j = 0; i < RTE_SCHED_QUEUES_PER_PIPE; i++) {
+ port->tc_queue[i] = j;
+
+ if (i >= RTE_SCHED_TRAFFIC_CLASS_BE)
+ j++;
+ }
+ port->rate = params->rate;
+ port->mtu = params->mtu + params->frame_overhead;
+ port->frame_overhead = params->frame_overhead;
/* Timing */
port->time_cpu_cycles = rte_get_tsc_cycles();
port->time_cpu_bytes = 0;
port->time = 0;
- port->cycles_per_byte = ((double) rte_get_tsc_hz()) / ((double) params->rate);
- /* Scheduling loop detection */
- port->pipe_loop = RTE_SCHED_PIPE_INVALID;
- port->pipe_exhaustion = 0;
+ cycles_per_byte = (rte_get_tsc_hz() << RTE_SCHED_TIME_SHIFT)
+ / params->rate;
+ port->inv_cycles_per_byte = rte_reciprocal_value(cycles_per_byte);
/* Grinders */
- port->busy_grinders = 0;
port->pkts_out = NULL;
port->n_pkts_out = 0;
- /* Queue base calculation */
- rte_sched_port_config_qsize(port);
+ return port;
+}
- /* Large data structures */
- port->subport = (struct rte_sched_subport *)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_SUBPORT));
- port->pipe = (struct rte_sched_pipe *)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_PIPE));
- port->queue = (struct rte_sched_queue *)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_QUEUE));
- port->queue_extra = (struct rte_sched_queue_extra *)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_QUEUE_EXTRA));
- port->pipe_profiles = (struct rte_sched_pipe_profile *)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_PIPE_PROFILES));
- port->bmp_array = port->memory
- + rte_sched_port_get_array_base(params, e_RTE_SCHED_PORT_ARRAY_BMP_ARRAY);
- port->queue_array = (struct rte_mbuf **)
- (port->memory + rte_sched_port_get_array_base(params,
- e_RTE_SCHED_PORT_ARRAY_QUEUE_ARRAY));
-
- /* Pipe profile table */
- rte_sched_port_config_pipe_profile_table(port, params);
+static inline void
+rte_sched_subport_free(struct rte_sched_port *port,
+ struct rte_sched_subport *subport)
+{
+ uint32_t n_subport_pipe_queues;
+ uint32_t qindex;
- /* Bitmap */
- n_queues_per_port = rte_sched_port_queues_per_port(port);
- bmp_mem_size = rte_bitmap_get_memory_footprint(n_queues_per_port);
- port->bmp = rte_bitmap_init(n_queues_per_port, port->bmp_array,
- bmp_mem_size);
- if (port->bmp == NULL) {
- RTE_LOG(ERR, SCHED, "Bitmap init error\n");
- return NULL;
- }
+ if (subport == NULL)
+ return;
- for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i++)
- port->grinder_base_bmp_pos[i] = RTE_SCHED_PIPE_INVALID;
+ n_subport_pipe_queues = rte_sched_subport_pipe_queues(subport);
+ /* Free enqueued mbufs */
+ for (qindex = 0; qindex < n_subport_pipe_queues; qindex++) {
+ struct rte_mbuf **mbufs =
+ rte_sched_subport_pipe_qbase(subport, qindex);
+ uint16_t qsize = rte_sched_subport_pipe_qsize(port, subport, qindex);
+ if (qsize != 0) {
+ struct rte_sched_queue *queue = subport->queue + qindex;
+ uint16_t qr = queue->qr & (qsize - 1);
+ uint16_t qw = queue->qw & (qsize - 1);
- return port;
+ for (; qr != qw; qr = (qr + 1) & (qsize - 1))
+ rte_pktmbuf_free(mbufs[qr]);
+ }
+ }
+
+ rte_bitmap_free(subport->bmp);
}
void
rte_sched_port_free(struct rte_sched_port *port)
{
+ uint32_t i;
+
/* Check user parameters */
if (port == NULL)
return;
- rte_bitmap_free(port->bmp);
+ for (i = 0; i < port->n_subports_per_port; i++)
+ rte_sched_subport_free(port, port->subports[i]);
+
rte_free(port);
}
static void
rte_sched_port_log_subport_config(struct rte_sched_port *port, uint32_t i)
{
- struct rte_sched_subport *s = port->subport + i;
+ struct rte_sched_subport *s = port->subports[i];
RTE_LOG(DEBUG, SCHED, "Low level config for subport %u:\n"
- " Token bucket: period = %u, credits per period = %u, size = %u\n"
- " Traffic classes: period = %u, credits per period = [%u, %u, %u, %u]\n"
- " Traffic class 3 oversubscription: wm min = %u, wm max = %u\n",
+ " Token bucket: period = %u, credits per period = %u, size = %u\n"
+ " Traffic classes: period = %u\n"
+ " credits per period = [%u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u]\n"
+ " Best effort traffic class oversubscription: wm min = %u, wm max = %u\n",
i,
/* Token bucket */
s->tc_credits_per_period[1],
s->tc_credits_per_period[2],
s->tc_credits_per_period[3],
-
- /* Traffic class 3 oversubscription */
+ s->tc_credits_per_period[4],
+ s->tc_credits_per_period[5],
+ s->tc_credits_per_period[6],
+ s->tc_credits_per_period[7],
+ s->tc_credits_per_period[8],
+ s->tc_credits_per_period[9],
+ s->tc_credits_per_period[10],
+ s->tc_credits_per_period[11],
+ s->tc_credits_per_period[12],
+
+ /* Best effort traffic class oversubscription */
s->tc_ov_wm_min,
s->tc_ov_wm_max);
}
+static void
+rte_sched_free_memory(struct rte_sched_port *port, uint32_t n_subports)
+{
+ uint32_t i;
+
+ for (i = 0; i < n_subports; i++) {
+ struct rte_sched_subport *subport = port->subports[i];
+
+ rte_sched_subport_free(port, subport);
+ }
+
+ rte_free(port);
+}
+
int
rte_sched_subport_config(struct rte_sched_port *port,
uint32_t subport_id,
struct rte_sched_subport_params *params)
{
- struct rte_sched_subport *s;
- uint32_t i;
+ struct rte_sched_subport *s = NULL;
+ uint32_t n_subports = subport_id;
+ uint32_t n_subport_pipe_queues, i;
+ uint32_t size0, size1, bmp_mem_size;
+ int status;
/* Check user parameters */
- if (port == NULL ||
- subport_id >= port->n_subports_per_port ||
- params == NULL)
- return -1;
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter port\n", __func__);
+ return 0;
+ }
+
+ if (subport_id >= port->n_subports_per_port) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for subport id\n", __func__);
- if (params->tb_rate == 0 || params->tb_rate > port->rate)
- return -2;
+ rte_sched_free_memory(port, n_subports);
+ return -EINVAL;
+ }
- if (params->tb_size == 0)
- return -3;
+ status = rte_sched_subport_check_params(params,
+ port->n_pipes_per_subport,
+ port->rate);
+ if (status != 0) {
+ RTE_LOG(NOTICE, SCHED,
+ "%s: Port scheduler params check failed (%d)\n",
+ __func__, status);
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
- if (params->tc_rate[i] == 0 ||
- params->tc_rate[i] > params->tb_rate)
- return -4;
+ rte_sched_free_memory(port, n_subports);
+ return -EINVAL;
}
- if (params->tc_period == 0)
- return -5;
+ /* Determine the amount of memory to allocate */
+ size0 = sizeof(struct rte_sched_subport);
+ size1 = rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_TOTAL);
- s = port->subport + subport_id;
+ /* Allocate memory to store the data structures */
+ s = rte_zmalloc_socket("subport_params", size0 + size1,
+ RTE_CACHE_LINE_SIZE, port->socket);
+ if (s == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Memory allocation fails\n", __func__);
+
+ rte_sched_free_memory(port, n_subports);
+ return -ENOMEM;
+ }
+
+ n_subports++;
+
+ /* Port */
+ port->subports[subport_id] = s;
/* Token Bucket (TB) */
if (params->tb_rate == port->rate) {
/* Traffic Classes (TCs) */
s->tc_period = rte_sched_time_ms_to_bytes(params->tc_period, port->rate);
for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
- s->tc_credits_per_period[i]
- = rte_sched_time_ms_to_bytes(params->tc_period,
- params->tc_rate[i]);
+ if (params->qsize[i])
+ s->tc_credits_per_period[i]
+ = rte_sched_time_ms_to_bytes(params->tc_period,
+ params->tc_rate[i]);
}
s->tc_time = port->time + s->tc_period;
for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
- s->tc_credits[i] = s->tc_credits_per_period[i];
+ if (params->qsize[i])
+ s->tc_credits[i] = s->tc_credits_per_period[i];
+
+ /* compile time checks */
+ RTE_BUILD_BUG_ON(RTE_SCHED_PORT_N_GRINDERS == 0);
+ RTE_BUILD_BUG_ON(RTE_SCHED_PORT_N_GRINDERS &
+ (RTE_SCHED_PORT_N_GRINDERS - 1));
+
+ /* User parameters */
+ s->n_pipes_per_subport_enabled = params->n_pipes_per_subport_enabled;
+ memcpy(s->qsize, params->qsize, sizeof(params->qsize));
+ s->n_pipe_profiles = params->n_pipe_profiles;
+ s->n_max_pipe_profiles = params->n_max_pipe_profiles;
+
+#ifdef RTE_SCHED_RED
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++) {
+ uint32_t j;
+
+ for (j = 0; j < RTE_COLORS; j++) {
+ /* if min/max are both zero, then RED is disabled */
+ if ((params->red_params[i][j].min_th |
+ params->red_params[i][j].max_th) == 0) {
+ continue;
+ }
+
+ if (rte_red_config_init(&s->red_config[i][j],
+ params->red_params[i][j].wq_log2,
+ params->red_params[i][j].min_th,
+ params->red_params[i][j].max_th,
+ params->red_params[i][j].maxp_inv) != 0) {
+ rte_sched_free_memory(port, n_subports);
+
+ RTE_LOG(NOTICE, SCHED,
+ "%s: RED configuration init fails\n", __func__);
+ return -EINVAL;
+ }
+ }
+ }
+#endif
+
+ /* Scheduling loop detection */
+ s->pipe_loop = RTE_SCHED_PIPE_INVALID;
+ s->pipe_exhaustion = 0;
+
+ /* Grinders */
+ s->busy_grinders = 0;
+
+ /* Queue base calculation */
+ rte_sched_subport_config_qsize(s);
+
+ /* Large data structures */
+ s->pipe = (struct rte_sched_pipe *)
+ (s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_PIPE));
+ s->queue = (struct rte_sched_queue *)
+ (s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE));
+ s->queue_extra = (struct rte_sched_queue_extra *)
+ (s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_EXTRA));
+ s->pipe_profiles = (struct rte_sched_pipe_profile *)
+ (s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_PIPE_PROFILES));
+ s->bmp_array = s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_BMP_ARRAY);
+ s->queue_array = (struct rte_mbuf **)
+ (s->memory + rte_sched_subport_get_array_base(params,
+ e_RTE_SCHED_SUBPORT_ARRAY_QUEUE_ARRAY));
+
+ /* Bitmap */
+ n_subport_pipe_queues = rte_sched_subport_pipe_queues(s);
+ bmp_mem_size = rte_bitmap_get_memory_footprint(n_subport_pipe_queues);
+ s->bmp = rte_bitmap_init(n_subport_pipe_queues, s->bmp_array,
+ bmp_mem_size);
+ if (s->bmp == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Subport bitmap init error\n", __func__);
+
+ rte_sched_free_memory(port, n_subports);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i++)
+ s->grinder_base_bmp_pos[i] = RTE_SCHED_PIPE_INVALID;
#ifdef RTE_SCHED_SUBPORT_TC_OV
/* TC oversubscription */
s->tc_ov_wm_min = port->mtu;
s->tc_ov_wm_max = rte_sched_time_ms_to_bytes(params->tc_period,
- port->pipe_tc3_rate_max);
+ s->pipe_tc_be_rate_max);
s->tc_ov_wm = s->tc_ov_wm_max;
s->tc_ov_period_id = 0;
s->tc_ov = 0;
profile = (uint32_t) pipe_profile;
deactivate = (pipe_profile < 0);
- if (port == NULL ||
- subport_id >= port->n_subports_per_port ||
- pipe_id >= port->n_pipes_per_subport ||
- (!deactivate && profile >= port->n_pipe_profiles))
- return -1;
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter port\n", __func__);
+ return -EINVAL;
+ }
+
+ if (subport_id >= port->n_subports_per_port) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter subport id\n", __func__);
+ return -EINVAL;
+ }
+
+ if (pipe_id >= port->n_pipes_per_subport) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter pipe id\n", __func__);
+ return -EINVAL;
+ }
+ if (!deactivate && profile >= port->n_pipe_profiles) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter pipe profile\n", __func__);
+ return -EINVAL;
+ }
/* Check that subport configuration is valid */
s = port->subport + subport_id;
- if (s->tb_period == 0)
- return -2;
+ if (s->tb_period == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Subport configuration invalid\n", __func__);
+ return -EINVAL;
+ }
p = port->pipe + (subport_id * port->n_pipes_per_subport + pipe_id);
if (p->tb_time) {
params = port->pipe_profiles + p->profile;
-#ifdef RTE_SCHED_SUBPORT_TC_OV
- double subport_tc3_rate = (double) s->tc_credits_per_period[3]
+ double subport_tc_be_rate =
+ (double) s->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE]
/ (double) s->tc_period;
- double pipe_tc3_rate = (double) params->tc_credits_per_period[3]
+ double pipe_tc_be_rate =
+ (double) params->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE]
/ (double) params->tc_period;
- uint32_t tc3_ov = s->tc_ov;
+ uint32_t tc_be_ov = s->tc_ov;
/* Unplug pipe from its subport */
s->tc_ov_n -= params->tc_ov_weight;
- s->tc_ov_rate -= pipe_tc3_rate;
- s->tc_ov = s->tc_ov_rate > subport_tc3_rate;
+ s->tc_ov_rate -= pipe_tc_be_rate;
+ s->tc_ov = s->tc_ov_rate > subport_tc_be_rate;
- if (s->tc_ov != tc3_ov) {
+ if (s->tc_ov != tc_be_ov) {
RTE_LOG(DEBUG, SCHED,
- "Subport %u TC3 oversubscription is OFF (%.4lf >= %.4lf)\n",
- subport_id, subport_tc3_rate, s->tc_ov_rate);
+ "Subport %u Best-effort TC oversubscription is OFF (%.4lf >= %.4lf)\n",
+ subport_id, subport_tc_be_rate, s->tc_ov_rate);
}
-#endif
/* Reset the pipe */
memset(p, 0, sizeof(struct rte_sched_pipe));
/* Traffic Classes (TCs) */
p->tc_time = port->time + params->tc_period;
+
for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
- p->tc_credits[i] = params->tc_credits_per_period[i];
+ if (port->qsize[i])
+ p->tc_credits[i] = params->tc_credits_per_period[i];
-#ifdef RTE_SCHED_SUBPORT_TC_OV
{
- /* Subport TC3 oversubscription */
- double subport_tc3_rate = (double) s->tc_credits_per_period[3]
+ /* Subport best effort tc oversubscription */
+ double subport_tc_be_rate =
+ (double) s->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE]
/ (double) s->tc_period;
- double pipe_tc3_rate = (double) params->tc_credits_per_period[3]
+ double pipe_tc_be_rate =
+ (double) params->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE]
/ (double) params->tc_period;
- uint32_t tc3_ov = s->tc_ov;
+ uint32_t tc_be_ov = s->tc_ov;
s->tc_ov_n += params->tc_ov_weight;
- s->tc_ov_rate += pipe_tc3_rate;
- s->tc_ov = s->tc_ov_rate > subport_tc3_rate;
+ s->tc_ov_rate += pipe_tc_be_rate;
+ s->tc_ov = s->tc_ov_rate > subport_tc_be_rate;
- if (s->tc_ov != tc3_ov) {
+ if (s->tc_ov != tc_be_ov) {
RTE_LOG(DEBUG, SCHED,
- "Subport %u TC3 oversubscription is ON (%.4lf < %.4lf)\n",
- subport_id, subport_tc3_rate, s->tc_ov_rate);
+ "Subport %u Best effort TC oversubscription is ON (%.4lf < %.4lf)\n",
+ subport_id, subport_tc_be_rate, s->tc_ov_rate);
}
p->tc_ov_period_id = s->tc_ov_period_id;
p->tc_ov_credits = s->tc_ov_wm;
}
-#endif
return 0;
}
+int
+rte_sched_port_pipe_profile_add(struct rte_sched_port *port,
+ struct rte_sched_pipe_params *params,
+ uint32_t *pipe_profile_id)
+{
+ struct rte_sched_pipe_profile *pp;
+ uint32_t i;
+ int status;
+
+ /* Port */
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter port\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Pipe profiles not exceeds the max limit */
+ if (port->n_pipe_profiles >= port->n_max_pipe_profiles) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Number of pipe profiles exceeds the max limit\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Pipe params */
+ status = pipe_profile_check(params, port->rate, &port->qsize[0]);
+ if (status != 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Pipe profile check failed(%d)\n", __func__, status);
+ return -EINVAL;
+ }
+
+ pp = &port->pipe_profiles[port->n_pipe_profiles];
+ rte_sched_pipe_profile_convert(port, params, pp, port->rate);
+
+ /* Pipe profile not exists */
+ for (i = 0; i < port->n_pipe_profiles; i++)
+ if (memcmp(port->pipe_profiles + i, pp, sizeof(*pp)) == 0) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Pipe profile doesn't exist\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Pipe profile commit */
+ *pipe_profile_id = port->n_pipe_profiles;
+ port->n_pipe_profiles++;
+
+ if (port->pipe_tc_be_rate_max < params->tc_rate[RTE_SCHED_TRAFFIC_CLASS_BE])
+ port->pipe_tc_be_rate_max = params->tc_rate[RTE_SCHED_TRAFFIC_CLASS_BE];
+
+ rte_sched_port_log_pipe_profile(port, *pipe_profile_id);
+
+ return 0;
+}
+
+static inline uint32_t
+rte_sched_port_qindex(struct rte_sched_port *port,
+ uint32_t subport,
+ uint32_t pipe,
+ uint32_t traffic_class,
+ uint32_t queue)
+{
+ return ((subport & (port->n_subports_per_port - 1)) <<
+ (port->n_pipes_per_subport_log2 + 4)) |
+ ((pipe & (port->n_pipes_per_subport - 1)) << 4) |
+ ((rte_sched_port_pipe_queue(port, traffic_class) + queue) &
+ (RTE_SCHED_QUEUES_PER_PIPE - 1));
+}
+
void
-rte_sched_port_pkt_write(struct rte_mbuf *pkt,
- uint32_t subport, uint32_t pipe, uint32_t traffic_class,
- uint32_t queue, enum rte_meter_color color)
+rte_sched_port_pkt_write(struct rte_sched_port *port,
+ struct rte_mbuf *pkt,
+ uint32_t subport, uint32_t pipe,
+ uint32_t traffic_class,
+ uint32_t queue, enum rte_color color)
{
- struct rte_sched_port_hierarchy *sched
- = (struct rte_sched_port_hierarchy *) &pkt->hash.sched;
+ uint32_t queue_id =
+ rte_sched_port_qindex(port, subport, pipe, traffic_class, queue);
- sched->color = (uint32_t) color;
- sched->subport = subport;
- sched->pipe = pipe;
- sched->traffic_class = traffic_class;
- sched->queue = queue;
+ rte_mbuf_sched_set(pkt, queue_id, traffic_class, (uint8_t)color);
}
void
-rte_sched_port_pkt_read_tree_path(const struct rte_mbuf *pkt,
+rte_sched_port_pkt_read_tree_path(struct rte_sched_port *port,
+ const struct rte_mbuf *pkt,
uint32_t *subport, uint32_t *pipe,
uint32_t *traffic_class, uint32_t *queue)
{
- const struct rte_sched_port_hierarchy *sched
- = (const struct rte_sched_port_hierarchy *) &pkt->hash.sched;
+ uint32_t queue_id = rte_mbuf_sched_queue_get(pkt);
- *subport = sched->subport;
- *pipe = sched->pipe;
- *traffic_class = sched->traffic_class;
- *queue = sched->queue;
+ *subport = queue_id >> (port->n_pipes_per_subport_log2 + 4);
+ *pipe = (queue_id >> 4) & (port->n_pipes_per_subport - 1);
+ *traffic_class = rte_sched_port_pipe_tc(port, queue_id);
+ *queue = rte_sched_port_tc_queue(port, queue_id);
}
-enum rte_meter_color
+enum rte_color
rte_sched_port_pkt_read_color(const struct rte_mbuf *pkt)
{
- const struct rte_sched_port_hierarchy *sched
- = (const struct rte_sched_port_hierarchy *) &pkt->hash.sched;
-
- return (enum rte_meter_color) sched->color;
+ return (enum rte_color)rte_mbuf_sched_color_get(pkt);
}
int
struct rte_sched_subport *s;
/* Check user parameters */
- if (port == NULL || subport_id >= port->n_subports_per_port ||
- stats == NULL || tc_ov == NULL)
- return -1;
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter port\n", __func__);
+ return -EINVAL;
+ }
+
+ if (subport_id >= port->n_subports_per_port) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for subport id\n", __func__);
+ return -EINVAL;
+ }
+
+ if (stats == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter stats\n", __func__);
+ return -EINVAL;
+ }
+
+ if (tc_ov == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for tc_ov\n", __func__);
+ return -EINVAL;
+ }
s = port->subport + subport_id;
memcpy(stats, &s->stats, sizeof(struct rte_sched_subport_stats));
memset(&s->stats, 0, sizeof(struct rte_sched_subport_stats));
- /* Subport TC ovesubscription status */
+ /* Subport TC oversubscription status */
*tc_ov = s->tc_ov;
return 0;
struct rte_sched_queue_extra *qe;
/* Check user parameters */
- if ((port == NULL) ||
- (queue_id >= rte_sched_port_queues_per_port(port)) ||
- (stats == NULL) ||
- (qlen == NULL)) {
- return -1;
+ if (port == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter port\n", __func__);
+ return -EINVAL;
+ }
+
+ if (queue_id >= rte_sched_port_queues_per_port(port)) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for queue id\n", __func__);
+ return -EINVAL;
+ }
+
+ if (stats == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter stats\n", __func__);
+ return -EINVAL;
+ }
+
+ if (qlen == NULL) {
+ RTE_LOG(ERR, SCHED,
+ "%s: Incorrect value for parameter qlen\n", __func__);
+ return -EINVAL;
}
q = port->queue + queue_id;
qe = port->queue_extra + queue_id;
return 0;
}
-static inline uint32_t
-rte_sched_port_qindex(struct rte_sched_port *port, uint32_t subport, uint32_t pipe, uint32_t traffic_class, uint32_t queue)
-{
- uint32_t result;
-
- result = subport * port->n_pipes_per_subport + pipe;
- result = result * RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE + traffic_class;
- result = result * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS + queue;
-
- return result;
-}
-
-static inline struct rte_mbuf **
-rte_sched_port_qbase(struct rte_sched_port *port, uint32_t qindex)
-{
- uint32_t pindex = qindex >> 4;
- uint32_t qpos = qindex & 0xF;
-
- return (port->queue_array + pindex * port->qsize_sum + port->qsize_add[qpos]);
-}
-
-static inline uint16_t
-rte_sched_port_qsize(struct rte_sched_port *port, uint32_t qindex)
-{
- uint32_t tc = (qindex >> 2) & 0x3;
-
- return port->qsize[tc];
-}
-
#ifdef RTE_SCHED_DEBUG
static inline int
{
struct rte_sched_queue *queue = port->queue + qindex;
- return (queue->qr == queue->qw);
-}
-
-static inline int
-rte_sched_port_queue_is_full(struct rte_sched_port *port, uint32_t qindex)
-{
- struct rte_sched_queue *queue = port->queue + qindex;
- uint16_t qsize = rte_sched_port_qsize(port, qindex);
- uint16_t qlen = queue->qw - queue->qr;
-
- return (qlen >= qsize);
+ return queue->qr == queue->qw;
}
#endif /* RTE_SCHED_DEBUG */
rte_sched_port_update_subport_stats(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf *pkt)
{
struct rte_sched_subport *s = port->subport + (qindex / rte_sched_port_queues_per_subport(port));
- uint32_t tc_index = (qindex >> 2) & 0x3;
+ uint32_t tc_index = rte_sched_port_pipe_tc(port, qindex);
uint32_t pkt_len = pkt->pkt_len;
s->stats.n_pkts_tc[tc_index] += 1;
s->stats.n_bytes_tc[tc_index] += pkt_len;
}
+#ifdef RTE_SCHED_RED
+static inline void
+rte_sched_port_update_subport_stats_on_drop(struct rte_sched_port *port,
+ uint32_t qindex,
+ struct rte_mbuf *pkt, uint32_t red)
+#else
static inline void
-rte_sched_port_update_subport_stats_on_drop(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf *pkt)
+rte_sched_port_update_subport_stats_on_drop(struct rte_sched_port *port,
+ uint32_t qindex,
+ struct rte_mbuf *pkt, __rte_unused uint32_t red)
+#endif
{
struct rte_sched_subport *s = port->subport + (qindex / rte_sched_port_queues_per_subport(port));
- uint32_t tc_index = (qindex >> 2) & 0x3;
+ uint32_t tc_index = rte_sched_port_pipe_tc(port, qindex);
uint32_t pkt_len = pkt->pkt_len;
s->stats.n_pkts_tc_dropped[tc_index] += 1;
s->stats.n_bytes_tc_dropped[tc_index] += pkt_len;
+#ifdef RTE_SCHED_RED
+ s->stats.n_pkts_red_dropped[tc_index] += red;
+#endif
}
static inline void
qe->stats.n_bytes += pkt_len;
}
+#ifdef RTE_SCHED_RED
+static inline void
+rte_sched_port_update_queue_stats_on_drop(struct rte_sched_port *port,
+ uint32_t qindex,
+ struct rte_mbuf *pkt, uint32_t red)
+#else
static inline void
-rte_sched_port_update_queue_stats_on_drop(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf *pkt)
+rte_sched_port_update_queue_stats_on_drop(struct rte_sched_port *port,
+ uint32_t qindex,
+ struct rte_mbuf *pkt, __rte_unused uint32_t red)
+#endif
{
struct rte_sched_queue_extra *qe = port->queue_extra + qindex;
uint32_t pkt_len = pkt->pkt_len;
qe->stats.n_pkts_dropped += 1;
qe->stats.n_bytes_dropped += pkt_len;
+#ifdef RTE_SCHED_RED
+ qe->stats.n_pkts_red_dropped += red;
+#endif
}
#endif /* RTE_SCHED_COLLECT_STATS */
struct rte_red_config *red_cfg;
struct rte_red *red;
uint32_t tc_index;
- enum rte_meter_color color;
+ enum rte_color color;
- tc_index = (qindex >> 2) & 0x3;
+ tc_index = rte_sched_port_pipe_tc(port, qindex);
color = rte_sched_port_pkt_read_color(pkt);
red_cfg = &port->red_config[tc_index][color];
#ifdef RTE_SCHED_DEBUG
-static inline int
-debug_pipe_is_empty(struct rte_sched_port *port, uint32_t pindex)
-{
- uint32_t qindex, i;
-
- qindex = pindex << 4;
-
- for (i = 0; i < 16; i++) {
- uint32_t queue_empty = rte_sched_port_queue_is_empty(port, qindex + i);
- uint32_t bmp_bit_clear = (rte_bitmap_get(port->bmp, qindex + i) == 0);
-
- if (queue_empty != bmp_bit_clear)
- rte_panic("Queue status mismatch for queue %u of pipe %u\n", i, pindex);
-
- if (!queue_empty)
- return 0;
- }
-
- return 1;
-}
-
static inline void
debug_check_queue_slab(struct rte_sched_port *port, uint32_t bmp_pos,
uint64_t bmp_slab)
#ifdef RTE_SCHED_COLLECT_STATS
struct rte_sched_queue_extra *qe;
#endif
- uint32_t subport, pipe, traffic_class, queue, qindex;
+ uint32_t qindex = rte_mbuf_sched_queue_get(pkt);
- rte_sched_port_pkt_read_tree_path(pkt, &subport, &pipe, &traffic_class, &queue);
-
- qindex = rte_sched_port_qindex(port, subport, pipe, traffic_class, queue);
q = port->queue + qindex;
rte_prefetch0(q);
#ifdef RTE_SCHED_COLLECT_STATS
(qlen >= qsize))) {
rte_pktmbuf_free(pkt);
#ifdef RTE_SCHED_COLLECT_STATS
- rte_sched_port_update_subport_stats_on_drop(port, qindex, pkt);
- rte_sched_port_update_queue_stats_on_drop(port, qindex, pkt);
+ rte_sched_port_update_subport_stats_on_drop(port, qindex, pkt,
+ qlen < qsize);
+ rte_sched_port_update_queue_stats_on_drop(port, qindex, pkt,
+ qlen < qsize);
#endif
return 0;
}
struct rte_sched_pipe *pipe = grinder->pipe;
struct rte_sched_pipe_profile *params = grinder->pipe_params;
uint64_t n_periods;
+ uint32_t i;
/* Subport TB */
n_periods = (port->time - subport->tb_time) / subport->tb_period;
/* Subport TCs */
if (unlikely(port->time >= subport->tc_time)) {
- subport->tc_credits[0] = subport->tc_credits_per_period[0];
- subport->tc_credits[1] = subport->tc_credits_per_period[1];
- subport->tc_credits[2] = subport->tc_credits_per_period[2];
- subport->tc_credits[3] = subport->tc_credits_per_period[3];
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ subport->tc_credits[i] = subport->tc_credits_per_period[i];
+
subport->tc_time = port->time + subport->tc_period;
}
/* Pipe TCs */
if (unlikely(port->time >= pipe->tc_time)) {
- pipe->tc_credits[0] = params->tc_credits_per_period[0];
- pipe->tc_credits[1] = params->tc_credits_per_period[1];
- pipe->tc_credits[2] = params->tc_credits_per_period[2];
- pipe->tc_credits[3] = params->tc_credits_per_period[3];
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ pipe->tc_credits[i] = params->tc_credits_per_period[i];
+
pipe->tc_time = port->time + params->tc_period;
}
}
struct rte_sched_grinder *grinder = port->grinder + pos;
struct rte_sched_subport *subport = grinder->subport;
uint32_t tc_ov_consumption[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
- uint32_t tc_ov_consumption_max;
+ uint32_t tc_consumption = 0, tc_ov_consumption_max;
uint32_t tc_ov_wm = subport->tc_ov_wm;
+ uint32_t i;
if (subport->tc_ov == 0)
return subport->tc_ov_wm_max;
- tc_ov_consumption[0] = subport->tc_credits_per_period[0] - subport->tc_credits[0];
- tc_ov_consumption[1] = subport->tc_credits_per_period[1] - subport->tc_credits[1];
- tc_ov_consumption[2] = subport->tc_credits_per_period[2] - subport->tc_credits[2];
- tc_ov_consumption[3] = subport->tc_credits_per_period[3] - subport->tc_credits[3];
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASS_BE; i++) {
+ tc_ov_consumption[i] =
+ subport->tc_credits_per_period[i] - subport->tc_credits[i];
+ tc_consumption += tc_ov_consumption[i];
+ }
+
+ tc_ov_consumption[RTE_SCHED_TRAFFIC_CLASS_BE] =
+ subport->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE] -
+ subport->tc_credits[RTE_SCHED_TRAFFIC_CLASS_BE];
- tc_ov_consumption_max = subport->tc_credits_per_period[3] -
- (tc_ov_consumption[0] + tc_ov_consumption[1] + tc_ov_consumption[2]);
+ tc_ov_consumption_max =
+ subport->tc_credits_per_period[RTE_SCHED_TRAFFIC_CLASS_BE] -
+ tc_consumption;
- if (tc_ov_consumption[3] > (tc_ov_consumption_max - port->mtu)) {
+ if (tc_ov_consumption[RTE_SCHED_TRAFFIC_CLASS_BE] >
+ (tc_ov_consumption_max - port->mtu)) {
tc_ov_wm -= tc_ov_wm >> 7;
if (tc_ov_wm < subport->tc_ov_wm_min)
tc_ov_wm = subport->tc_ov_wm_min;
struct rte_sched_pipe *pipe = grinder->pipe;
struct rte_sched_pipe_profile *params = grinder->pipe_params;
uint64_t n_periods;
+ uint32_t i;
/* Subport TB */
n_periods = (port->time - subport->tb_time) / subport->tb_period;
if (unlikely(port->time >= subport->tc_time)) {
subport->tc_ov_wm = grinder_tc_ov_credits_update(port, pos);
- subport->tc_credits[0] = subport->tc_credits_per_period[0];
- subport->tc_credits[1] = subport->tc_credits_per_period[1];
- subport->tc_credits[2] = subport->tc_credits_per_period[2];
- subport->tc_credits[3] = subport->tc_credits_per_period[3];
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ subport->tc_credits[i] = subport->tc_credits_per_period[i];
subport->tc_time = port->time + subport->tc_period;
subport->tc_ov_period_id++;
/* Pipe TCs */
if (unlikely(port->time >= pipe->tc_time)) {
- pipe->tc_credits[0] = params->tc_credits_per_period[0];
- pipe->tc_credits[1] = params->tc_credits_per_period[1];
- pipe->tc_credits[2] = params->tc_credits_per_period[2];
- pipe->tc_credits[3] = params->tc_credits_per_period[3];
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ pipe->tc_credits[i] = params->tc_credits_per_period[i];
pipe->tc_time = port->time + params->tc_period;
}
uint32_t subport_tc_credits = subport->tc_credits[tc_index];
uint32_t pipe_tb_credits = pipe->tb_credits;
uint32_t pipe_tc_credits = pipe->tc_credits[tc_index];
- uint32_t pipe_tc_ov_mask1[] = {UINT32_MAX, UINT32_MAX, UINT32_MAX, pipe->tc_ov_credits};
- uint32_t pipe_tc_ov_mask2[] = {0, 0, 0, UINT32_MAX};
- uint32_t pipe_tc_ov_credits = pipe_tc_ov_mask1[tc_index];
+ uint32_t pipe_tc_ov_mask1[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE];
+ uint32_t pipe_tc_ov_mask2[RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE] = {0};
+ uint32_t pipe_tc_ov_credits, i;
int enough_credits;
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
+ pipe_tc_ov_mask1[i] = UINT32_MAX;
+
+ pipe_tc_ov_mask1[RTE_SCHED_TRAFFIC_CLASS_BE] = pipe->tc_ov_credits;
+ pipe_tc_ov_mask2[RTE_SCHED_TRAFFIC_CLASS_BE] = UINT32_MAX;
+ pipe_tc_ov_credits = pipe_tc_ov_mask1[tc_index];
+
/* Check pipe and subport credits */
enough_credits = (pkt_len <= subport_tb_credits) &&
(pkt_len <= subport_tc_credits) &&
struct rte_sched_queue *queue = grinder->queue[grinder->qpos];
struct rte_mbuf *pkt = grinder->pkt;
uint32_t pkt_len = pkt->pkt_len + port->frame_overhead;
+ uint32_t be_tc_active;
if (!grinder_credits_check(port, pos))
return 0;
/* Send packet */
port->pkts_out[port->n_pkts_out++] = pkt;
queue->qr++;
- grinder->wrr_tokens[grinder->qpos] += pkt_len * grinder->wrr_cost[grinder->qpos];
+
+ be_tc_active = (grinder->tc_index == RTE_SCHED_TRAFFIC_CLASS_BE) ? ~0x0 : 0x0;
+ grinder->wrr_tokens[grinder->qpos] +=
+ (pkt_len * grinder->wrr_cost[grinder->qpos]) & be_tc_active;
+
if (queue->qr == queue->qw) {
uint32_t qindex = grinder->qindex[grinder->qpos];
rte_bitmap_clear(port->bmp, qindex);
grinder->qmask &= ~(1 << grinder->qpos);
- grinder->wrr_mask[grinder->qpos] = 0;
+ if (be_tc_active)
+ grinder->wrr_mask[grinder->qpos] = 0;
rte_sched_port_set_queue_empty_timestamp(port, qindex);
}
return 1;
}
-#ifdef RTE_SCHED_VECTOR
+#ifdef SCHED_VECTOR_SSE4
static inline int
grinder_pipe_exists(struct rte_sched_port *port, uint32_t base_pipe)
return 1;
}
+#elif defined(SCHED_VECTOR_NEON)
+
+static inline int
+grinder_pipe_exists(struct rte_sched_port *port, uint32_t base_pipe)
+{
+ uint32x4_t index, pipes;
+ uint32_t *pos = (uint32_t *)port->grinder_base_bmp_pos;
+
+ index = vmovq_n_u32(base_pipe);
+ pipes = vld1q_u32(pos);
+ if (!vminvq_u32(veorq_u32(pipes, index)))
+ return 1;
+
+ pipes = vld1q_u32(pos + 4);
+ if (!vminvq_u32(veorq_u32(pipes, index)))
+ return 1;
+
+ return 0;
+}
+
#else
static inline int
grinder_tccache_populate(struct rte_sched_port *port, uint32_t pos, uint32_t qindex, uint16_t qmask)
{
struct rte_sched_grinder *grinder = port->grinder + pos;
- uint8_t b[4];
+ uint8_t b, i;
grinder->tccache_w = 0;
grinder->tccache_r = 0;
- b[0] = (uint8_t) (qmask & 0xF);
- b[1] = (uint8_t) ((qmask >> 4) & 0xF);
- b[2] = (uint8_t) ((qmask >> 8) & 0xF);
- b[3] = (uint8_t) ((qmask >> 12) & 0xF);
-
- grinder->tccache_qmask[grinder->tccache_w] = b[0];
- grinder->tccache_qindex[grinder->tccache_w] = qindex;
- grinder->tccache_w += (b[0] != 0);
-
- grinder->tccache_qmask[grinder->tccache_w] = b[1];
- grinder->tccache_qindex[grinder->tccache_w] = qindex + 4;
- grinder->tccache_w += (b[1] != 0);
-
- grinder->tccache_qmask[grinder->tccache_w] = b[2];
- grinder->tccache_qindex[grinder->tccache_w] = qindex + 8;
- grinder->tccache_w += (b[2] != 0);
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASS_BE; i++) {
+ b = (uint8_t) ((qmask >> i) & 0x1);
+ grinder->tccache_qmask[grinder->tccache_w] = b;
+ grinder->tccache_qindex[grinder->tccache_w] = qindex + i;
+ grinder->tccache_w += (b != 0);
+ }
- grinder->tccache_qmask[grinder->tccache_w] = b[3];
- grinder->tccache_qindex[grinder->tccache_w] = qindex + 12;
- grinder->tccache_w += (b[3] != 0);
+ b = (uint8_t) (qmask >> (RTE_SCHED_TRAFFIC_CLASS_BE));
+ grinder->tccache_qmask[grinder->tccache_w] = b;
+ grinder->tccache_qindex[grinder->tccache_w] = qindex +
+ RTE_SCHED_TRAFFIC_CLASS_BE;
+ grinder->tccache_w += (b != 0);
}
static inline int
qbase = rte_sched_port_qbase(port, qindex);
qsize = rte_sched_port_qsize(port, qindex);
- grinder->tc_index = (qindex >> 2) & 0x3;
+ grinder->tc_index = rte_sched_port_pipe_tc(port, qindex);
grinder->qmask = grinder->tccache_qmask[grinder->tccache_r];
grinder->qsize = qsize;
- grinder->qindex[0] = qindex;
- grinder->qindex[1] = qindex + 1;
- grinder->qindex[2] = qindex + 2;
- grinder->qindex[3] = qindex + 3;
+ if (grinder->tc_index < RTE_SCHED_TRAFFIC_CLASS_BE) {
+ grinder->queue[0] = port->queue + qindex;
+ grinder->qbase[0] = qbase;
+ grinder->qindex[0] = qindex;
+ grinder->tccache_r++;
+
+ return 1;
+ }
grinder->queue[0] = port->queue + qindex;
grinder->queue[1] = port->queue + qindex + 1;
grinder->qbase[2] = qbase + 2 * qsize;
grinder->qbase[3] = qbase + 3 * qsize;
+ grinder->qindex[0] = qindex;
+ grinder->qindex[1] = qindex + 1;
+ grinder->qindex[2] = qindex + 2;
+ grinder->qindex[3] = qindex + 3;
+
grinder->tccache_r++;
return 1;
}
struct rte_sched_grinder *grinder = port->grinder + pos;
struct rte_sched_pipe *pipe = grinder->pipe;
struct rte_sched_pipe_profile *pipe_params = grinder->pipe_params;
- uint32_t tc_index = grinder->tc_index;
uint32_t qmask = grinder->qmask;
- uint32_t qindex;
-
- qindex = tc_index * 4;
- grinder->wrr_tokens[0] = ((uint16_t) pipe->wrr_tokens[qindex]) << RTE_SCHED_WRR_SHIFT;
- grinder->wrr_tokens[1] = ((uint16_t) pipe->wrr_tokens[qindex + 1]) << RTE_SCHED_WRR_SHIFT;
- grinder->wrr_tokens[2] = ((uint16_t) pipe->wrr_tokens[qindex + 2]) << RTE_SCHED_WRR_SHIFT;
- grinder->wrr_tokens[3] = ((uint16_t) pipe->wrr_tokens[qindex + 3]) << RTE_SCHED_WRR_SHIFT;
+ grinder->wrr_tokens[0] =
+ ((uint16_t) pipe->wrr_tokens[0]) << RTE_SCHED_WRR_SHIFT;
+ grinder->wrr_tokens[1] =
+ ((uint16_t) pipe->wrr_tokens[1]) << RTE_SCHED_WRR_SHIFT;
+ grinder->wrr_tokens[2] =
+ ((uint16_t) pipe->wrr_tokens[2]) << RTE_SCHED_WRR_SHIFT;
+ grinder->wrr_tokens[3] =
+ ((uint16_t) pipe->wrr_tokens[3]) << RTE_SCHED_WRR_SHIFT;
grinder->wrr_mask[0] = (qmask & 0x1) * 0xFFFF;
grinder->wrr_mask[1] = ((qmask >> 1) & 0x1) * 0xFFFF;
grinder->wrr_mask[2] = ((qmask >> 2) & 0x1) * 0xFFFF;
grinder->wrr_mask[3] = ((qmask >> 3) & 0x1) * 0xFFFF;
- grinder->wrr_cost[0] = pipe_params->wrr_cost[qindex];
- grinder->wrr_cost[1] = pipe_params->wrr_cost[qindex + 1];
- grinder->wrr_cost[2] = pipe_params->wrr_cost[qindex + 2];
- grinder->wrr_cost[3] = pipe_params->wrr_cost[qindex + 3];
+ grinder->wrr_cost[0] = pipe_params->wrr_cost[0];
+ grinder->wrr_cost[1] = pipe_params->wrr_cost[1];
+ grinder->wrr_cost[2] = pipe_params->wrr_cost[2];
+ grinder->wrr_cost[3] = pipe_params->wrr_cost[3];
}
static inline void
{
struct rte_sched_grinder *grinder = port->grinder + pos;
struct rte_sched_pipe *pipe = grinder->pipe;
- uint32_t tc_index = grinder->tc_index;
- uint32_t qindex;
- qindex = tc_index * 4;
-
- pipe->wrr_tokens[qindex] = (grinder->wrr_tokens[0] & grinder->wrr_mask[0])
- >> RTE_SCHED_WRR_SHIFT;
- pipe->wrr_tokens[qindex + 1] = (grinder->wrr_tokens[1] & grinder->wrr_mask[1])
- >> RTE_SCHED_WRR_SHIFT;
- pipe->wrr_tokens[qindex + 2] = (grinder->wrr_tokens[2] & grinder->wrr_mask[2])
- >> RTE_SCHED_WRR_SHIFT;
- pipe->wrr_tokens[qindex + 3] = (grinder->wrr_tokens[3] & grinder->wrr_mask[3])
- >> RTE_SCHED_WRR_SHIFT;
+ pipe->wrr_tokens[0] =
+ (grinder->wrr_tokens[0] & grinder->wrr_mask[0]) >>
+ RTE_SCHED_WRR_SHIFT;
+ pipe->wrr_tokens[1] =
+ (grinder->wrr_tokens[1] & grinder->wrr_mask[1]) >>
+ RTE_SCHED_WRR_SHIFT;
+ pipe->wrr_tokens[2] =
+ (grinder->wrr_tokens[2] & grinder->wrr_mask[2]) >>
+ RTE_SCHED_WRR_SHIFT;
+ pipe->wrr_tokens[3] =
+ (grinder->wrr_tokens[3] & grinder->wrr_mask[3]) >>
+ RTE_SCHED_WRR_SHIFT;
}
static inline void
grinder_prefetch_tc_queue_arrays(struct rte_sched_port *port, uint32_t pos)
{
struct rte_sched_grinder *grinder = port->grinder + pos;
- uint16_t qsize, qr[4];
+ uint16_t qsize, qr[RTE_SCHED_MAX_QUEUES_PER_TC];
qsize = grinder->qsize;
+ grinder->qpos = 0;
+
+ if (grinder->tc_index < RTE_SCHED_TRAFFIC_CLASS_BE) {
+ qr[0] = grinder->queue[0]->qr & (qsize - 1);
+
+ rte_prefetch0(grinder->qbase[0] + qr[0]);
+ return;
+ }
+
qr[0] = grinder->queue[0]->qr & (qsize - 1);
qr[1] = grinder->queue[1]->qr & (qsize - 1);
qr[2] = grinder->queue[2]->qr & (qsize - 1);
case e_GRINDER_READ_MBUF:
{
- uint32_t result = 0;
+ uint32_t wrr_active, result = 0;
result = grinder_schedule(port, pos);
+ wrr_active = (grinder->tc_index == RTE_SCHED_TRAFFIC_CLASS_BE);
+
/* Look for next packet within the same TC */
if (result && grinder->qmask) {
- grinder_wrr(port, pos);
+ if (wrr_active)
+ grinder_wrr(port, pos);
+
grinder_prefetch_mbuf(port, pos);
return 1;
}
- grinder_wrr_store(port, pos);
+
+ if (wrr_active)
+ grinder_wrr_store(port, pos);
/* Look for another active TC within same pipe */
if (grinder_next_tc(port, pos)) {
{
uint64_t cycles = rte_get_tsc_cycles();
uint64_t cycles_diff = cycles - port->time_cpu_cycles;
- double bytes_diff = ((double) cycles_diff) / port->cycles_per_byte;
+ uint64_t bytes_diff;
+
+ /* Compute elapsed time in bytes */
+ bytes_diff = rte_reciprocal_divide(cycles_diff << RTE_SCHED_TIME_SHIFT,
+ port->inv_cycles_per_byte);
/* Advance port time */
port->time_cpu_cycles = cycles;
- port->time_cpu_bytes += (uint64_t) bytes_diff;
+ port->time_cpu_bytes += bytes_diff;
if (port->time < port->time_cpu_bytes)
port->time = port->time_cpu_bytes;
git.droids-corp.org / dpdk.git / blobdiff