#include <rte_prefetch.h>
#include <rte_branch_prediction.h>
#include <rte_mbuf.h>
+#include <rte_bitmap.h>
#include "rte_sched.h"
-#include "rte_bitmap.h"
#include "rte_sched_common.h"
#include "rte_approx.h"
+#include "rte_reciprocal.h"
#ifdef __INTEL_COMPILER
#pragma warning(disable:2259) /* conversion may lose significant bits */
#endif
-#ifndef RTE_SCHED_DEBUG
-#define RTE_SCHED_DEBUG 0
-#endif
+#ifdef RTE_SCHED_VECTOR
+#include <rte_vect.h>
-#ifndef RTE_SCHED_OPTIMIZATIONS
-#define RTE_SCHED_OPTIMIZATIONS 0
+#ifdef RTE_ARCH_X86
+#define SCHED_VECTOR_SSE4
+#elif defined(RTE_MACHINE_CPUFLAG_NEON)
+#define SCHED_VECTOR_NEON
#endif
-#if RTE_SCHED_OPTIMIZATIONS
-#include <immintrin.h>
#endif
-#define RTE_SCHED_ENQUEUE 1
-
-#define RTE_SCHED_TS 1
-
-#if RTE_SCHED_TS == 0 /* Infinite credits. Traffic shaping disabled. */
-#define RTE_SCHED_TS_CREDITS_UPDATE 0
-#define RTE_SCHED_TS_CREDITS_CHECK 0
-#else /* Real Credits. Full traffic shaping implemented. */
-#define RTE_SCHED_TS_CREDITS_UPDATE 1
-#define RTE_SCHED_TS_CREDITS_CHECK 1
-#endif
-
-#ifndef RTE_SCHED_TB_RATE_CONFIG_ERR
#define RTE_SCHED_TB_RATE_CONFIG_ERR (1e-7)
-#endif
-
-#define RTE_SCHED_WRR 1
-
-#ifndef RTE_SCHED_WRR_SHIFT
#define RTE_SCHED_WRR_SHIFT 3
-#endif
-
-#ifndef RTE_SCHED_PORT_N_GRINDERS
-#define RTE_SCHED_PORT_N_GRINDERS 8
-#endif
-#if (RTE_SCHED_PORT_N_GRINDERS == 0) || (RTE_SCHED_PORT_N_GRINDERS & (RTE_SCHED_PORT_N_GRINDERS - 1))
-#error Number of grinders must be non-zero and a power of 2
-#endif
-#if (RTE_SCHED_OPTIMIZATIONS && (RTE_SCHED_PORT_N_GRINDERS != 8))
-#error Number of grinders must be 8 when RTE_SCHED_OPTIMIZATIONS is set
-#endif
-
#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
+/* Scaling for cycles_per_byte calculation
+ * Chosen so that minimum rate is 480 bit/sec
+ */
+#define RTE_SCHED_TIME_SHIFT 8
+
struct rte_sched_subport {
/* Token bucket (TB) */
uint64_t tb_time; /* time of last update */
* 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 */
+ uint16_t queue:2; /**< Queue ID (0 .. 3) */
+ uint16_t traffic_class:2; /**< Traffic class ID (0 .. 3)*/
uint32_t color:2; /**< Color */
+ uint16_t unused:10;
+ uint16_t subport; /**< Subport ID */
+ uint32_t pipe; /**< Pipe ID */
};
struct rte_sched_grinder {
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;
return RTE_SCHED_QUEUES_PER_PIPE * port->n_pipes_per_subport * port->n_subports_per_port;
}
+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];
+}
+
static int
rte_sched_port_check_params(struct rte_sched_port_params *params)
{
uint32_t i, j;
- if (params == NULL) {
+ if (params == NULL)
return -1;
- }
/* socket */
- if ((params->socket < 0) || (params->socket >= RTE_MAX_NUMA_NODES)) {
+ if ((params->socket < 0) || (params->socket >= RTE_MAX_NUMA_NODES))
return -3;
- }
/* rate */
- if (params->rate == 0) {
+ if (params->rate == 0)
return -4;
- }
/* mtu */
- if (params->mtu == 0) {
+ if (params->mtu == 0)
return -5;
- }
- /* 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))) {
+ /* 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))
return -6;
- }
/* 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))) {
+ if (params->n_pipes_per_subport == 0 ||
+ !rte_is_power_of_2(params->n_pipes_per_subport))
return -7;
- }
/* 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 ++) {
+ * 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))) {
+ if (qsize == 0 || !rte_is_power_of_2(qsize))
return -8;
- }
}
/* 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)) {
+ if (params->pipe_profiles == NULL ||
+ params->n_pipe_profiles == 0 ||
+ params->n_pipe_profiles > RTE_SCHED_PIPE_PROFILES_PER_PORT)
return -9;
- }
- for (i = 0; i < params->n_pipe_profiles; i ++) {
+ for (i = 0; i < params->n_pipe_profiles; i++) {
struct rte_sched_pipe_params *p = params->pipe_profiles + i;
/* TB rate: non-zero, not greater than port rate */
- if ((p->tb_rate == 0) || (p->tb_rate > params->rate)) {
+ if (p->tb_rate == 0 || p->tb_rate > params->rate)
return -10;
- }
/* TB size: non-zero */
- if (p->tb_size == 0) {
+ if (p->tb_size == 0)
return -11;
- }
/* 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)) {
+ 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 period: non-zero */
- if (p->tc_period == 0) {
+ if (p->tc_period == 0)
return -13;
- }
#ifdef RTE_SCHED_SUBPORT_TC_OV
/* TC3 oversubscription weight: non-zero */
- if (p->tc_ov_weight == 0) {
+ if (p->tc_ov_weight == 0)
return -14;
- }
#endif
/* Queue WRR weights: non-zero */
- for (j = 0; j < RTE_SCHED_QUEUES_PER_PIPE; j ++) {
- if (p->wrr_weights[j] == 0) {
+ for (j = 0; j < RTE_SCHED_QUEUES_PER_PIPE; j++) {
+ if (p->wrr_weights[j] == 0)
return -15;
- }
}
}
uint32_t size_subport = n_subports_per_port * sizeof(struct rte_sched_subport);
uint32_t size_pipe = n_pipes_per_port * sizeof(struct rte_sched_pipe);
uint32_t size_queue = n_queues_per_port * sizeof(struct rte_sched_queue);
- 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);
+ 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);
uint32_t size_bmp_array = rte_bitmap_get_memory_footprint(n_queues_per_port);
uint32_t size_per_pipe_queue_array, size_queue_array;
uint32_t base, i;
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 *);
+ 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 *);
}
size_queue_array = n_pipes_per_port * size_per_pipe_queue_array;
base = 0;
- if (array == e_RTE_SCHED_PORT_ARRAY_SUBPORT) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_SUBPORT)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_subport);
- if (array == e_RTE_SCHED_PORT_ARRAY_PIPE) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_PIPE)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_pipe);
- if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_queue);
- if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE_EXTRA) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE_EXTRA)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_queue_extra);
- if (array == e_RTE_SCHED_PORT_ARRAY_PIPE_PROFILES) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_PIPE_PROFILES)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_pipe_profiles);
- if (array == e_RTE_SCHED_PORT_ARRAY_BMP_ARRAY) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_BMP_ARRAY)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_bmp_array);
- if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE_ARRAY) return base;
+ if (array == e_RTE_SCHED_PORT_ARRAY_QUEUE_ARRAY)
+ return base;
base += RTE_CACHE_LINE_ROUNDUP(size_queue_array);
return base;
size0 = sizeof(struct rte_sched_port);
size1 = rte_sched_port_get_array_base(params, e_RTE_SCHED_PORT_ARRAY_TOTAL);
- return (size0 + size1);
+ return size0 + size1;
}
static void
rte_sched_time_ms_to_bytes(uint32_t time_ms, uint32_t rate)
{
uint64_t time = time_ms;
+
time = (time * rate) / 1000;
return time;
{
uint32_t i, j;
- for (i = 0; i < port->n_pipe_profiles; 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;
dst->tb_credits_per_period = 1;
dst->tb_period = 1;
} else {
- double tb_rate = ((double) src->tb_rate) / ((double) params->rate);
+ 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);
+ rte_approx(tb_rate, d,
+ &dst->tb_credits_per_period, &dst->tb_period);
}
dst->tb_size = src->tb_size;
/* Traffic Classes */
- dst->tc_period = (uint32_t) rte_sched_time_ms_to_bytes(src->tc_period, params->rate);
- for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j ++) {
- dst->tc_credits_per_period[j] = (uint32_t) rte_sched_time_ms_to_bytes(src->tc_period, src->tc_rate[j]);
- }
+ dst->tc_period = rte_sched_time_ms_to_bytes(src->tc_period,
+ params->rate);
+
+ for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j++)
+ dst->tc_credits_per_period[j]
+ = rte_sched_time_ms_to_bytes(src->tc_period,
+ src->tc_rate[j]);
+
#ifdef RTE_SCHED_SUBPORT_TC_OV
dst->tc_ov_weight = src->tc_ov_weight;
#endif
/* WRR */
- for (j = 0; j < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; j ++) {
+ 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;
}
port->pipe_tc3_rate_max = 0;
- for (i = 0; i < port->n_pipe_profiles; i ++) {
+ 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 (port->pipe_tc3_rate_max < pipe_tc3_rate) {
+ if (port->pipe_tc3_rate_max < pipe_tc3_rate)
port->pipe_tc3_rate_max = pipe_tc3_rate;
- }
}
}
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 mem_size, bmp_mem_size, n_queues_per_port, i, cycles_per_byte;
/* Check user parameters. Determine the amount of memory to allocate */
mem_size = rte_sched_port_get_memory_footprint(params);
- if (mem_size == 0) {
+ if (mem_size == 0)
return NULL;
- }
/* Allocate memory to store the data structures */
port = rte_zmalloc("qos_params", mem_size, RTE_CACHE_LINE_SIZE);
- if (port == NULL) {
+ if (port == NULL)
return NULL;
- }
+
+ /* 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 */
port->n_subports_per_port = params->n_subports_per_port;
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);
+
+ cycles_per_byte = (rte_get_tsc_hz() << RTE_SCHED_TIME_SHIFT)
+ / params->rate;
+ port->inv_cycles_per_byte = rte_reciprocal_value(cycles_per_byte);
/* Scheduling loop detection */
port->pipe_loop = RTE_SCHED_PIPE_INVALID;
rte_sched_port_config_qsize(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));
+ 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);
/* 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);
+ 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;
}
- for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i ++) {
+
+ for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i++)
port->grinder_base_bmp_pos[i] = RTE_SCHED_PIPE_INVALID;
- }
+
return port;
}
void
rte_sched_port_free(struct rte_sched_port *port)
{
+ uint32_t qindex;
+ uint32_t n_queues_per_port;
+
/* Check user parameters */
- if (port == NULL){
+ if (port == NULL)
return;
+
+ n_queues_per_port = rte_sched_port_queues_per_port(port);
+
+ /* Free enqueued mbufs */
+ for (qindex = 0; qindex < n_queues_per_port; qindex++) {
+ struct rte_mbuf **mbufs = rte_sched_port_qbase(port, qindex);
+ uint16_t qsize = rte_sched_port_qsize(port, qindex);
+ struct rte_sched_queue *queue = port->queue + qindex;
+ uint16_t qr = queue->qr & (qsize - 1);
+ uint16_t qw = queue->qw & (qsize - 1);
+
+ for (; qr != qw; qr = (qr + 1) & (qsize - 1))
+ rte_pktmbuf_free(mbufs[qr]);
}
rte_bitmap_free(port->bmp);
uint32_t i;
/* Check user parameters */
- if ((port == NULL) ||
- (subport_id >= port->n_subports_per_port) ||
- (params == NULL)) {
+ if (port == NULL ||
+ subport_id >= port->n_subports_per_port ||
+ params == NULL)
return -1;
- }
- if ((params->tb_rate == 0) || (params->tb_rate > port->rate)) {
+ if (params->tb_rate == 0 || params->tb_rate > port->rate)
return -2;
- }
- if (params->tb_size == 0) {
+ if (params->tb_size == 0)
return -3;
- }
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i ++) {
- if ((params->tc_rate[i] == 0) || (params->tc_rate[i] > params->tb_rate)) {
+ 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;
- }
}
- if (params->tc_period == 0) {
+ if (params->tc_period == 0)
return -5;
- }
s = port->subport + subport_id;
rte_approx(tb_rate, d, &s->tb_credits_per_period, &s->tb_period);
}
+
s->tb_size = params->tb_size;
s->tb_time = port->time;
s->tb_credits = s->tb_size / 2;
/* Traffic Classes (TCs) */
- s->tc_period = (uint32_t) 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] = (uint32_t) rte_sched_time_ms_to_bytes(params->tc_period, params->tc_rate[i]);
+ 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]);
}
s->tc_time = port->time + s->tc_period;
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i ++) {
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i++)
s->tc_credits[i] = s->tc_credits_per_period[i];
- }
#ifdef RTE_SCHED_SUBPORT_TC_OV
/* TC oversubscription */
s->tc_ov_wm_min = port->mtu;
- s->tc_ov_wm_max = (uint32_t) rte_sched_time_ms_to_bytes(params->tc_period, port->pipe_tc3_rate_max);
+ s->tc_ov_wm_max = rte_sched_time_ms_to_bytes(params->tc_period,
+ port->pipe_tc3_rate_max);
s->tc_ov_wm = s->tc_ov_wm_max;
s->tc_ov_period_id = 0;
s->tc_ov = 0;
/* Check user parameters */
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))) {
+
+ 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;
- }
+
/* Check that subport configuration is valid */
s = port->subport + subport_id;
- if (s->tb_period == 0) {
+ if (s->tb_period == 0)
return -2;
- }
p = port->pipe + (subport_id * port->n_pipes_per_subport + pipe_id);
params = port->pipe_profiles + p->profile;
#ifdef RTE_SCHED_SUBPORT_TC_OV
- double subport_tc3_rate = ((double) s->tc_credits_per_period[3]) / ((double) s->tc_period);
- double pipe_tc3_rate = ((double) params->tc_credits_per_period[3]) / ((double) params->tc_period);
+ double subport_tc3_rate = (double) s->tc_credits_per_period[3]
+ / (double) s->tc_period;
+ double pipe_tc3_rate = (double) params->tc_credits_per_period[3]
+ / (double) params->tc_period;
uint32_t tc3_ov = s->tc_ov;
/* Unplug pipe from its subport */
memset(p, 0, sizeof(struct rte_sched_pipe));
}
- if (deactivate) {
+ if (deactivate)
return 0;
- }
/* Apply the new pipe configuration */
p->profile = profile;
/* Traffic Classes (TCs) */
p->tc_time = port->time + params->tc_period;
- for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; i ++) {
+ for (i = 0; i < RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE; 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]) / ((double) s->tc_period);
- double pipe_tc3_rate = ((double) params->tc_credits_per_period[3]) / ((double) params->tc_period);
+ double subport_tc3_rate = (double) s->tc_credits_per_period[3]
+ / (double) s->tc_period;
+ double pipe_tc3_rate = (double) params->tc_credits_per_period[3]
+ / (double) params->tc_period;
uint32_t tc3_ov = s->tc_ov;
s->tc_ov_n += params->tc_ov_weight;
struct rte_sched_port_hierarchy *sched
= (struct rte_sched_port_hierarchy *) &pkt->hash.sched;
+ RTE_BUILD_BUG_ON(sizeof(*sched) > sizeof(pkt->hash.sched));
+
sched->color = (uint32_t) color;
sched->subport = subport;
sched->pipe = pipe;
*queue = sched->queue;
}
-
enum rte_meter_color
rte_sched_port_pkt_read_color(const struct rte_mbuf *pkt)
{
int
rte_sched_subport_read_stats(struct rte_sched_port *port,
- uint32_t subport_id,
- struct rte_sched_subport_stats *stats,
- uint32_t *tc_ov)
+ uint32_t subport_id,
+ struct rte_sched_subport_stats *stats,
+ uint32_t *tc_ov)
{
struct rte_sched_subport *s;
/* Check user parameters */
- if ((port == NULL) ||
- (subport_id >= port->n_subports_per_port) ||
- (stats == NULL) ||
- (tc_ov == NULL)) {
+ if (port == NULL || subport_id >= port->n_subports_per_port ||
+ stats == NULL || tc_ov == NULL)
return -1;
- }
+
s = port->subport + subport_id;
/* Copy subport stats and clear */
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;
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];
-}
-
-#if RTE_SCHED_DEBUG
+#ifdef RTE_SCHED_DEBUG
static inline int
rte_sched_port_queue_is_empty(struct rte_sched_port *port, uint32_t qindex)
{
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 */
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)
+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_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;
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)
+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_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_sched_queue_extra *qe;
struct rte_red_config *red_cfg;
- struct rte_red *red;
+ struct rte_red *red;
uint32_t tc_index;
enum rte_meter_color color;
static inline void
rte_sched_port_set_queue_empty_timestamp(struct rte_sched_port *port, uint32_t qindex)
{
- struct rte_sched_queue_extra *qe;
- struct rte_red *red;
-
- qe = port->queue_extra + qindex;
- red = &qe->red;
+ struct rte_sched_queue_extra *qe = port->queue_extra + qindex;
+ struct rte_red *red = &qe->red;
rte_red_mark_queue_empty(red, port->time);
}
#endif /* RTE_SCHED_RED */
-#if 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;
-}
+#ifdef RTE_SCHED_DEBUG
static inline void
-debug_check_queue_slab(struct rte_sched_port *port, uint32_t bmp_pos, uint64_t bmp_slab)
+debug_check_queue_slab(struct rte_sched_port *port, uint32_t bmp_pos,
+ uint64_t bmp_slab)
{
uint64_t mask;
uint32_t i, panic;
- if (bmp_slab == 0){
+ if (bmp_slab == 0)
rte_panic("Empty slab at position %u\n", bmp_pos);
- }
panic = 0;
- for (i = 0, mask = 1; i < 64; i ++, mask <<= 1) {
- if (mask & bmp_slab){
+ for (i = 0, mask = 1; i < 64; i++, mask <<= 1) {
+ if (mask & bmp_slab) {
if (rte_sched_port_queue_is_empty(port, bmp_pos + i)) {
printf("Queue %u (slab offset %u) is empty\n", bmp_pos + i, i);
panic = 1;
}
}
- if (panic){
+ if (panic)
rte_panic("Empty queues in slab 0x%" PRIx64 "starting at position %u\n",
bmp_slab, bmp_pos);
- }
}
#endif /* RTE_SCHED_DEBUG */
static inline uint32_t
-rte_sched_port_enqueue_qptrs_prefetch0(struct rte_sched_port *port, struct rte_mbuf *pkt)
+rte_sched_port_enqueue_qptrs_prefetch0(struct rte_sched_port *port,
+ struct rte_mbuf *pkt)
{
struct rte_sched_queue *q;
#ifdef RTE_SCHED_COLLECT_STATS
}
static inline void
-rte_sched_port_enqueue_qwa_prefetch0(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf **qbase)
+rte_sched_port_enqueue_qwa_prefetch0(struct rte_sched_port *port,
+ uint32_t qindex, struct rte_mbuf **qbase)
{
struct rte_sched_queue *q;
struct rte_mbuf **q_qw;
}
static inline int
-rte_sched_port_enqueue_qwa(struct rte_sched_port *port, uint32_t qindex, struct rte_mbuf **qbase, struct rte_mbuf *pkt)
+rte_sched_port_enqueue_qwa(struct rte_sched_port *port, uint32_t qindex,
+ struct rte_mbuf **qbase, struct rte_mbuf *pkt)
{
struct rte_sched_queue *q;
uint16_t qsize;
qlen = q->qw - q->qr;
/* Drop the packet (and update drop stats) when queue is full */
- if (unlikely(rte_sched_port_red_drop(port, pkt, qindex, qlen) || (qlen >= qsize))) {
+ if (unlikely(rte_sched_port_red_drop(port, pkt, qindex, qlen) ||
+ (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;
}
/* Enqueue packet */
qbase[q->qw & (qsize - 1)] = pkt;
- q->qw ++;
+ q->qw++;
/* Activate queue in the port bitmap */
rte_bitmap_set(port->bmp, qindex);
return 1;
}
-#if RTE_SCHED_ENQUEUE == 0
-
-int
-rte_sched_port_enqueue(struct rte_sched_port *port, struct rte_mbuf **pkts, uint32_t n_pkts)
-{
- uint32_t result, i;
-
- result = 0;
-
- for (i = 0; i < n_pkts; i ++) {
- struct rte_mbuf *pkt;
- struct rte_mbuf **q_base;
- uint32_t subport, pipe, traffic_class, queue, qindex;
-
- pkt = pkts[i];
-
- 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_base = rte_sched_port_qbase(port, qindex);
-
- result += rte_sched_port_enqueue_qwa(port, qindex, q_base, pkt);
- }
-
- return result;
-}
-
-#else
/*
- * The enqueue function implements a 4-level pipeline with each stage processing
- * two different packets. The purpose of using a pipeline is to hide the latency
- * of prefetching the data structures. The naming convention is presented in the
- * diagram below:
+ * The enqueue function implements a 4-level pipeline with each stage
+ * processing two different packets. The purpose of using a pipeline
+ * is to hide the latency of prefetching the data structures. The
+ * naming convention is presented in the diagram below:
*
* p00 _______ p10 _______ p20 _______ p30 _______
* ----->| |----->| |----->| |----->| |----->
*
*/
int
-rte_sched_port_enqueue(struct rte_sched_port *port, struct rte_mbuf **pkts, uint32_t n_pkts)
+rte_sched_port_enqueue(struct rte_sched_port *port, struct rte_mbuf **pkts,
+ uint32_t n_pkts)
{
- struct rte_mbuf *pkt00, *pkt01, *pkt10, *pkt11, *pkt20, *pkt21, *pkt30, *pkt31, *pkt_last;
- struct rte_mbuf **q00_base, **q01_base, **q10_base, **q11_base, **q20_base, **q21_base, **q30_base, **q31_base, **q_last_base;
+ struct rte_mbuf *pkt00, *pkt01, *pkt10, *pkt11, *pkt20, *pkt21,
+ *pkt30, *pkt31, *pkt_last;
+ struct rte_mbuf **q00_base, **q01_base, **q10_base, **q11_base,
+ **q20_base, **q21_base, **q30_base, **q31_base, **q_last_base;
uint32_t q00, q01, q10, q11, q20, q21, q30, q31, q_last;
uint32_t r00, r01, r10, r11, r20, r21, r30, r31, r_last;
uint32_t result, i;
result = 0;
- /* Less then 6 input packets available, which is not enough to feed the pipeline */
+ /*
+ * Less then 6 input packets available, which is not enough to
+ * feed the pipeline
+ */
if (unlikely(n_pkts < 6)) {
struct rte_mbuf **q_base[5];
uint32_t q[5];
/* Prefetch the mbuf structure of each packet */
- for (i = 0; i < n_pkts; i ++) {
+ for (i = 0; i < n_pkts; i++)
rte_prefetch0(pkts[i]);
- }
/* Prefetch the queue structure for each queue */
- for (i = 0; i < n_pkts; i ++) {
- q[i] = rte_sched_port_enqueue_qptrs_prefetch0(port, pkts[i]);
- }
+ for (i = 0; i < n_pkts; i++)
+ q[i] = rte_sched_port_enqueue_qptrs_prefetch0(port,
+ pkts[i]);
/* Prefetch the write pointer location of each queue */
- for (i = 0; i < n_pkts; i ++) {
+ for (i = 0; i < n_pkts; i++) {
q_base[i] = rte_sched_port_qbase(port, q[i]);
- rte_sched_port_enqueue_qwa_prefetch0(port, q[i], q_base[i]);
+ rte_sched_port_enqueue_qwa_prefetch0(port, q[i],
+ q_base[i]);
}
/* Write each packet to its queue */
- for (i = 0; i < n_pkts; i ++) {
- result += rte_sched_port_enqueue_qwa(port, q[i], q_base[i], pkts[i]);
- }
+ for (i = 0; i < n_pkts; i++)
+ result += rte_sched_port_enqueue_qwa(port, q[i],
+ q_base[i], pkts[i]);
return result;
}
result += r30 + r31;
}
- /* Drain the pipeline (exactly 6 packets). Handle the last packet in the case
- of an odd number of input packets. */
+ /*
+ * Drain the pipeline (exactly 6 packets).
+ * Handle the last packet in the case
+ * of an odd number of input packets.
+ */
pkt_last = pkts[n_pkts - 1];
rte_prefetch0(pkt_last);
return result;
}
-#endif /* RTE_SCHED_ENQUEUE */
-
-#if RTE_SCHED_TS_CREDITS_UPDATE == 0
-
-#define grinder_credits_update(port, pos)
-
-#elif !defined(RTE_SCHED_SUBPORT_TC_OV)
+#ifndef RTE_SCHED_SUBPORT_TC_OV
static inline void
grinder_credits_update(struct rte_sched_port *port, uint32_t pos)
uint32_t tc_ov_consumption_max;
uint32_t tc_ov_wm = subport->tc_ov_wm;
- if (subport->tc_ov == 0) {
+ 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];
if (tc_ov_consumption[3] > (tc_ov_consumption_max - port->mtu)) {
tc_ov_wm -= tc_ov_wm >> 7;
- if (tc_ov_wm < subport->tc_ov_wm_min) {
+ if (tc_ov_wm < subport->tc_ov_wm_min)
tc_ov_wm = subport->tc_ov_wm_min;
- }
+
return tc_ov_wm;
}
tc_ov_wm += (tc_ov_wm >> 7) + 1;
- if (tc_ov_wm > subport->tc_ov_wm_max) {
+ if (tc_ov_wm > subport->tc_ov_wm_max)
tc_ov_wm = subport->tc_ov_wm_max;
- }
+
return tc_ov_wm;
}
subport->tc_credits[3] = subport->tc_credits_per_period[3];
subport->tc_time = port->time + subport->tc_period;
- subport->tc_ov_period_id ++;
+ subport->tc_ov_period_id++;
}
/* Pipe TCs */
#endif /* RTE_SCHED_TS_CREDITS_UPDATE, RTE_SCHED_SUBPORT_TC_OV */
-#if RTE_SCHED_TS_CREDITS_CHECK
#ifndef RTE_SCHED_SUBPORT_TC_OV
(pkt_len <= pipe_tb_credits) &&
(pkt_len <= pipe_tc_credits);
- if (!enough_credits) {
+ if (!enough_credits)
return 0;
- }
/* Update port credits */
subport->tb_credits -= pkt_len;
(pkt_len <= pipe_tc_credits) &&
(pkt_len <= pipe_tc_ov_credits);
- if (!enough_credits) {
+ if (!enough_credits)
return 0;
- }
/* Update pipe and subport credits */
subport->tb_credits -= pkt_len;
#endif /* RTE_SCHED_SUBPORT_TC_OV */
-#endif /* RTE_SCHED_TS_CREDITS_CHECK */
static inline int
grinder_schedule(struct rte_sched_port *port, uint32_t pos)
struct rte_mbuf *pkt = grinder->pkt;
uint32_t pkt_len = pkt->pkt_len + port->frame_overhead;
-#if RTE_SCHED_TS_CREDITS_CHECK
- if (!grinder_credits_check(port, pos)) {
+ if (!grinder_credits_check(port, pos))
return 0;
- }
-#endif
/* Advance port time */
port->time += pkt_len;
/* Send packet */
- port->pkts_out[port->n_pkts_out ++] = pkt;
- queue->qr ++;
+ port->pkts_out[port->n_pkts_out++] = pkt;
+ queue->qr++;
grinder->wrr_tokens[grinder->qpos] += pkt_len * grinder->wrr_cost[grinder->qpos];
if (queue->qr == queue->qw) {
uint32_t qindex = grinder->qindex[grinder->qpos];
return 1;
}
-#if RTE_SCHED_OPTIMIZATIONS
+#ifdef SCHED_VECTOR_SSE4
static inline int
grinder_pipe_exists(struct rte_sched_port *port, uint32_t base_pipe)
{
- __m128i index = _mm_set1_epi32 (base_pipe);
+ __m128i index = _mm_set1_epi32(base_pipe);
__m128i pipes = _mm_load_si128((__m128i *)port->grinder_base_bmp_pos);
__m128i res = _mm_cmpeq_epi32(pipes, index);
+
pipes = _mm_load_si128((__m128i *)(port->grinder_base_bmp_pos + 4));
pipes = _mm_cmpeq_epi32(pipes, index);
res = _mm_or_si128(res, pipes);
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
{
uint32_t i;
- for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i ++) {
- if (port->grinder_base_bmp_pos[i] == base_pipe) {
+ for (i = 0; i < RTE_SCHED_PORT_N_GRINDERS; i++) {
+ if (port->grinder_base_bmp_pos[i] == base_pipe)
return 1;
- }
}
return 0;
uint32_t qindex;
uint16_t qsize;
- if (grinder->tccache_r == grinder->tccache_w) {
+ if (grinder->tccache_r == grinder->tccache_w)
return 0;
- }
qindex = grinder->tccache_qindex[grinder->tccache_r];
qbase = rte_sched_port_qbase(port, qindex);
grinder->qbase[2] = qbase + 2 * qsize;
grinder->qbase[3] = qbase + 3 * qsize;
- grinder->tccache_r ++;
+ grinder->tccache_r++;
return 1;
}
if (grinder->pcache_r < grinder->pcache_w) {
pipe_qmask = grinder->pcache_qmask[grinder->pcache_r];
pipe_qindex = grinder->pcache_qindex[grinder->pcache_r];
- grinder->pcache_r ++;
+ grinder->pcache_r++;
} else {
uint64_t bmp_slab = 0;
uint32_t bmp_pos = 0;
/* Get another non-empty pipe group */
- if (unlikely(rte_bitmap_scan(port->bmp, &bmp_pos, &bmp_slab) <= 0)) {
+ if (unlikely(rte_bitmap_scan(port->bmp, &bmp_pos, &bmp_slab) <= 0))
return 0;
- }
-#if RTE_SCHED_DEBUG
+#ifdef RTE_SCHED_DEBUG
debug_check_queue_slab(port, bmp_pos, bmp_slab);
#endif
/* Return if pipe group already in one of the other grinders */
port->grinder_base_bmp_pos[pos] = RTE_SCHED_BMP_POS_INVALID;
- if (unlikely(grinder_pipe_exists(port, bmp_pos))) {
+ if (unlikely(grinder_pipe_exists(port, bmp_pos)))
return 0;
- }
+
port->grinder_base_bmp_pos[pos] = bmp_pos;
/* Install new pipe group into grinder's pipe cache */
return 1;
}
-#if RTE_SCHED_WRR == 0
-
-#define grinder_wrr_load(a,b)
-
-#define grinder_wrr_store(a,b)
-
-static inline void
-grinder_wrr(struct rte_sched_port *port, uint32_t pos)
-{
- struct rte_sched_grinder *grinder = port->grinder + pos;
- uint64_t slab = grinder->qmask;
-
- if (rte_bsf64(slab, &grinder->qpos) == 0) {
- rte_panic("grinder wrr\n");
- }
-}
-
-#elif RTE_SCHED_WRR == 1
static inline void
grinder_wrr_load(struct rte_sched_port *port, uint32_t pos)
qindex = tc_index * 4;
- pipe->wrr_tokens[qindex] = (uint8_t) ((grinder->wrr_tokens[0] & grinder->wrr_mask[0]) >> RTE_SCHED_WRR_SHIFT);
- pipe->wrr_tokens[qindex + 1] = (uint8_t) ((grinder->wrr_tokens[1] & grinder->wrr_mask[1]) >> RTE_SCHED_WRR_SHIFT);
- pipe->wrr_tokens[qindex + 2] = (uint8_t) ((grinder->wrr_tokens[2] & grinder->wrr_mask[2]) >> RTE_SCHED_WRR_SHIFT);
- pipe->wrr_tokens[qindex + 3] = (uint8_t) ((grinder->wrr_tokens[3] & grinder->wrr_mask[3]) >> RTE_SCHED_WRR_SHIFT);
+ 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;
}
static inline void
grinder->wrr_tokens[3] -= wrr_tokens_min;
}
-#else
-
-#error Invalid value for RTE_SCHED_WRR
-
-#endif /* RTE_SCHED_WRR */
#define grinder_evict(port, pos)
{
if (grinder_next_pipe(port, pos)) {
grinder_prefetch_pipe(port, pos);
- port->busy_grinders ++;
+ port->busy_grinders++;
grinder->state = e_GRINDER_PREFETCH_TC_QUEUE_ARRAYS;
return 0;
grinder->state = e_GRINDER_PREFETCH_MBUF;
return result;
}
- if ((grinder->productive == 0) && (port->pipe_loop == RTE_SCHED_PIPE_INVALID)) {
+
+ if (grinder->productive == 0 &&
+ port->pipe_loop == RTE_SCHED_PIPE_INVALID)
port->pipe_loop = grinder->pindex;
- }
+
grinder_evict(port, pos);
/* Look for another active pipe */
}
/* No active pipe found */
- port->busy_grinders --;
+ port->busy_grinders--;
grinder->state = e_GRINDER_PREFETCH_PIPE;
return result;
{
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;
- if (port->time < port->time_cpu_bytes) {
+ port->time_cpu_bytes += bytes_diff;
+ if (port->time < port->time_cpu_bytes)
port->time = port->time_cpu_bytes;
- }
/* Reset pipe loop detection */
port->pipe_loop = RTE_SCHED_PIPE_INVALID;
rte_sched_port_time_resync(port);
/* Take each queue in the grinder one step further */
- for (i = 0, count = 0; ; i ++) {
+ for (i = 0, count = 0; ; i++) {
count += grinder_handle(port, i & (RTE_SCHED_PORT_N_GRINDERS - 1));
if ((count == n_pkts) ||
rte_sched_port_exceptions(port, i >= RTE_SCHED_PORT_N_GRINDERS)) {
git.droids-corp.org / dpdk.git / blobdiff