numam-dpdk/drivers/net/mvpp2/mrvl_qos.c
Dana Vardi 4b86050aab net/mvpp2: add fill buffs to configuration file
Extend config file with 'fill_bpool_buffs'
which control the amount of refill buffers

Signed-off-by: Dana Vardi <danat@marvell.com>
Reviewed-by: Liron Himi <lironh@marvell.com>
2021-01-29 18:16:11 +01:00

1195 lines
32 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Marvell International Ltd.
* Copyright(c) 2017 Semihalf.
* All rights reserved.
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <rte_common.h>
#include <rte_cfgfile.h>
#include <rte_log.h>
#include <rte_lcore.h>
#include <rte_malloc.h>
#include <rte_string_fns.h>
#include "mrvl_qos.h"
/* Parsing tokens. Defined conveniently, so that any correction is easy. */
#define MRVL_TOK_DEFAULT "default"
#define MRVL_TOK_DSA_MODE "dsa_mode"
#define MRVL_TOK_START_HDR "start_hdr"
#define MRVL_TOK_START_HDR_NONE "none"
#define MRVL_TOK_START_HDR_DSA "dsa"
#define MRVL_TOK_START_HDR_CUSTOM "custom"
#define MRVL_TOK_START_HDR_EXT_DSA "ext_dsa"
#define MRVL_TOK_DEFAULT_TC "default_tc"
#define MRVL_TOK_DSCP "dscp"
#define MRVL_TOK_MAPPING_PRIORITY "mapping_priority"
#define MRVL_TOK_IP "ip"
#define MRVL_TOK_IP_VLAN "ip/vlan"
#define MRVL_TOK_PCP "pcp"
#define MRVL_TOK_PORT "port"
#define MRVL_TOK_RXQ "rxq"
#define MRVL_TOK_TC "tc"
#define MRVL_TOK_TXQ "txq"
#define MRVL_TOK_VLAN "vlan"
#define MRVL_TOK_VLAN_IP "vlan/ip"
#define MRVL_TOK_PARSER_UDF "parser udf"
/* egress specific configuration tokens */
#define MRVL_TOK_BURST_SIZE "burst_size"
#define MRVL_TOK_RATE_LIMIT "rate_limit"
#define MRVL_TOK_RATE_LIMIT_ENABLE "rate_limit_enable"
#define MRVL_TOK_SCHED_MODE "sched_mode"
#define MRVL_TOK_SCHED_MODE_SP "sp"
#define MRVL_TOK_SCHED_MODE_WRR "wrr"
#define MRVL_TOK_WRR_WEIGHT "wrr_weight"
/* policer specific configuration tokens */
#define MRVL_TOK_PLCR "policer"
#define MRVL_TOK_PLCR_DEFAULT "default_policer"
#define MRVL_TOK_PLCR_UNIT "token_unit"
#define MRVL_TOK_PLCR_UNIT_BYTES "bytes"
#define MRVL_TOK_PLCR_UNIT_PACKETS "packets"
#define MRVL_TOK_PLCR_COLOR "color_mode"
#define MRVL_TOK_PLCR_COLOR_BLIND "blind"
#define MRVL_TOK_PLCR_COLOR_AWARE "aware"
#define MRVL_TOK_PLCR_CIR "cir"
#define MRVL_TOK_PLCR_CBS "cbs"
#define MRVL_TOK_PLCR_EBS "ebs"
#define MRVL_TOK_PLCR_DEFAULT_COLOR "default_color"
#define MRVL_TOK_PLCR_DEFAULT_COLOR_GREEN "green"
#define MRVL_TOK_PLCR_DEFAULT_COLOR_YELLOW "yellow"
#define MRVL_TOK_PLCR_DEFAULT_COLOR_RED "red"
/* parser udf specific configuration tokens */
#define MRVL_TOK_PARSER_UDF_PROTO "proto"
#define MRVL_TOK_PARSER_UDF_FIELD "field"
#define MRVL_TOK_PARSER_UDF_KEY "key"
#define MRVL_TOK_PARSER_UDF_MASK "mask"
#define MRVL_TOK_PARSER_UDF_OFFSET "offset"
#define MRVL_TOK_PARSER_UDF_PROTO_ETH "eth"
#define MRVL_TOK_PARSER_UDF_FIELD_ETH_TYPE "type"
#define MRVL_TOK_PARSER_UDF_PROTO_UDP "udp"
#define MRVL_TOK_PARSER_UDF_FIELD_UDP_DPORT "dport"
/* parser forward bad frames tokens */
#define MRVL_TOK_FWD_BAD_FRAMES "forward_bad_frames"
/* parse fill bpool buffers tokens */
#define MRVL_TOK_FILL_BPOOL_BUFFS "fill_bpool_buffs"
/** Number of tokens in range a-b = 2. */
#define MAX_RNG_TOKENS 2
/** Maximum possible value of PCP. */
#define MAX_PCP 7
/** Maximum possible value of DSCP. */
#define MAX_DSCP 63
/** Global configuration. */
struct mrvl_cfg *mrvl_cfg;
/**
* Read out-queue configuration from file.
*
* @param file Path to the configuration file.
* @param port Port number.
* @param outq Out queue number.
* @param cfg Pointer to the Marvell configuration structure.
* @returns 0 in case of success, negative value otherwise.
*/
static int
get_outq_cfg(struct rte_cfgfile *file, int port, int outq,
struct mrvl_cfg *cfg)
{
char sec_name[32];
const char *entry;
uint32_t val;
snprintf(sec_name, sizeof(sec_name), "%s %d %s %d",
MRVL_TOK_PORT, port, MRVL_TOK_TXQ, outq);
/* Skip non-existing */
if (rte_cfgfile_num_sections(file, sec_name, strlen(sec_name)) <= 0)
return 0;
/* Read scheduling mode */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_SCHED_MODE);
if (entry) {
if (!strncmp(entry, MRVL_TOK_SCHED_MODE_SP,
strlen(MRVL_TOK_SCHED_MODE_SP))) {
cfg->port[port].outq[outq].sched_mode =
PP2_PPIO_SCHED_M_SP;
} else if (!strncmp(entry, MRVL_TOK_SCHED_MODE_WRR,
strlen(MRVL_TOK_SCHED_MODE_WRR))) {
cfg->port[port].outq[outq].sched_mode =
PP2_PPIO_SCHED_M_WRR;
} else {
MRVL_LOG(ERR, "Unknown token: %s", entry);
return -1;
}
}
/* Read wrr weight */
if (cfg->port[port].outq[outq].sched_mode == PP2_PPIO_SCHED_M_WRR) {
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_WRR_WEIGHT);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].outq[outq].weight = val;
}
}
/*
* There's no point in setting rate limiting for specific outq as
* global port rate limiting has priority.
*/
if (cfg->port[port].rate_limit_enable) {
MRVL_LOG(WARNING, "Port %d rate limiting already enabled",
port);
return 0;
}
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_RATE_LIMIT_ENABLE);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].outq[outq].rate_limit_enable = val;
}
if (!cfg->port[port].outq[outq].rate_limit_enable)
return 0;
/* Read CBS (in kB) */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_BURST_SIZE);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].outq[outq].rate_limit_params.cbs = val;
}
/* Read CIR (in kbps) */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_RATE_LIMIT);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].outq[outq].rate_limit_params.cir = val;
}
return 0;
}
/**
* Gets multiple-entry values and places them in table.
*
* Entry can be anything, e.g. "1 2-3 5 6 7-9". This needs to be converted to
* table entries, respectively: {1, 2, 3, 5, 6, 7, 8, 9}.
* As all result table's elements are always 1-byte long, we
* won't overcomplicate the function, but we'll keep API generic,
* check if someone hasn't changed element size and make it simple
* to extend to other sizes.
*
* This function is purely utilitary, it does not print any error, only returns
* different error numbers.
*
* @param entry[in] Values string to parse.
* @param tab[out] Results table.
* @param elem_sz[in] Element size (in bytes).
* @param max_elems[in] Number of results table elements available.
* @param max val[in] Maximum value allowed.
* @returns Number of correctly parsed elements in case of success.
* @retval -1 Wrong element size.
* @retval -2 More tokens than result table allows.
* @retval -3 Wrong range syntax.
* @retval -4 Wrong range values.
* @retval -5 Maximum value exceeded.
*/
static int
get_entry_values(const char *entry, uint8_t *tab,
size_t elem_sz, uint8_t max_elems, uint8_t max_val)
{
/* There should not be more tokens than max elements.
* Add 1 for error trap.
*/
char *tokens[max_elems + 1];
/* Begin, End + error trap = 3. */
char *rng_tokens[MAX_RNG_TOKENS + 1];
long beg, end;
uint32_t token_val;
int nb_tokens, nb_rng_tokens;
int i;
int values = 0;
char val;
char entry_cpy[CFG_VALUE_LEN];
if (elem_sz != 1)
return -1;
/* Copy the entry to safely use rte_strsplit(). */
strlcpy(entry_cpy, entry, RTE_DIM(entry_cpy));
/*
* If there are more tokens than array size, rte_strsplit will
* not return error, just array size.
*/
nb_tokens = rte_strsplit(entry_cpy, strlen(entry_cpy),
tokens, max_elems + 1, ' ');
/* Quick check, will be refined later. */
if (nb_tokens > max_elems)
return -2;
for (i = 0; i < nb_tokens; ++i) {
if (strchr(tokens[i], '-') != NULL) {
/*
* Split to begin and end tokens.
* We want to catch error cases too, thus we leave
* option for number of tokens to be more than 2.
*/
nb_rng_tokens = rte_strsplit(tokens[i],
strlen(tokens[i]), rng_tokens,
RTE_DIM(rng_tokens), '-');
if (nb_rng_tokens != 2)
return -3;
/* Range and sanity checks. */
if (get_val_securely(rng_tokens[0], &token_val) < 0)
return -4;
beg = (char)token_val;
if (get_val_securely(rng_tokens[1], &token_val) < 0)
return -4;
end = (char)token_val;
if (beg < 0 || beg > UCHAR_MAX ||
end < 0 || end > UCHAR_MAX || end < beg)
return -4;
for (val = beg; val <= end; ++val) {
if (val > max_val)
return -5;
*tab = val;
tab = RTE_PTR_ADD(tab, elem_sz);
++values;
if (values >= max_elems)
return -2;
}
} else {
/* Single values. */
if (get_val_securely(tokens[i], &token_val) < 0)
return -5;
val = (char)token_val;
if (val > max_val)
return -5;
*tab = val;
tab = RTE_PTR_ADD(tab, elem_sz);
++values;
if (values >= max_elems)
return -2;
}
}
return values;
}
/**
* Parse Traffic Class'es mapping configuration.
*
* @param file Config file handle.
* @param port Which port to look for.
* @param tc Which Traffic Class to look for.
* @param cfg[out] Parsing results.
* @returns 0 in case of success, negative value otherwise.
*/
static int
parse_tc_cfg(struct rte_cfgfile *file, int port, int tc,
struct mrvl_cfg *cfg)
{
char sec_name[32];
const char *entry;
int n;
snprintf(sec_name, sizeof(sec_name), "%s %d %s %d",
MRVL_TOK_PORT, port, MRVL_TOK_TC, tc);
/* Skip non-existing */
if (rte_cfgfile_num_sections(file, sec_name, strlen(sec_name)) <= 0)
return 0;
cfg->port[port].use_qos_global_defaults = 0;
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_RXQ);
if (entry) {
n = get_entry_values(entry,
cfg->port[port].tc[tc].inq,
sizeof(cfg->port[port].tc[tc].inq[0]),
RTE_DIM(cfg->port[port].tc[tc].inq),
MRVL_PP2_RXQ_MAX);
if (n < 0) {
MRVL_LOG(ERR, "Error %d while parsing: %s",
n, entry);
return n;
}
cfg->port[port].tc[tc].inqs = n;
}
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PCP);
if (entry) {
n = get_entry_values(entry,
cfg->port[port].tc[tc].pcp,
sizeof(cfg->port[port].tc[tc].pcp[0]),
RTE_DIM(cfg->port[port].tc[tc].pcp),
MAX_PCP);
if (n < 0) {
MRVL_LOG(ERR, "Error %d while parsing: %s",
n, entry);
return n;
}
cfg->port[port].tc[tc].pcps = n;
}
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_DSCP);
if (entry) {
n = get_entry_values(entry,
cfg->port[port].tc[tc].dscp,
sizeof(cfg->port[port].tc[tc].dscp[0]),
RTE_DIM(cfg->port[port].tc[tc].dscp),
MAX_DSCP);
if (n < 0) {
MRVL_LOG(ERR, "Error %d while parsing: %s",
n, entry);
return n;
}
cfg->port[port].tc[tc].dscps = n;
}
if (!cfg->port[port].setup_policer)
return 0;
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_PLCR_DEFAULT_COLOR);
if (entry) {
if (!strncmp(entry, MRVL_TOK_PLCR_DEFAULT_COLOR_GREEN,
sizeof(MRVL_TOK_PLCR_DEFAULT_COLOR_GREEN))) {
cfg->port[port].tc[tc].color = PP2_PPIO_COLOR_GREEN;
} else if (!strncmp(entry, MRVL_TOK_PLCR_DEFAULT_COLOR_YELLOW,
sizeof(MRVL_TOK_PLCR_DEFAULT_COLOR_YELLOW))) {
cfg->port[port].tc[tc].color = PP2_PPIO_COLOR_YELLOW;
} else if (!strncmp(entry, MRVL_TOK_PLCR_DEFAULT_COLOR_RED,
sizeof(MRVL_TOK_PLCR_DEFAULT_COLOR_RED))) {
cfg->port[port].tc[tc].color = PP2_PPIO_COLOR_RED;
} else {
MRVL_LOG(ERR, "Error while parsing: %s", entry);
return -1;
}
}
return 0;
}
/**
* Parse default port policer.
*
* @param file Config file handle.
* @param sec_name Section name with policer configuration
* @param port Port number.
* @param cfg[out] Parsing results.
* @returns 0 in case of success, negative value otherwise.
*/
static int
parse_policer(struct rte_cfgfile *file, int port, const char *sec_name,
struct mrvl_cfg *cfg)
{
const char *entry;
uint32_t val;
/* Read policer token unit */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PLCR_UNIT);
if (entry) {
if (!strncmp(entry, MRVL_TOK_PLCR_UNIT_BYTES,
sizeof(MRVL_TOK_PLCR_UNIT_BYTES))) {
cfg->port[port].policer_params.token_unit =
PP2_CLS_PLCR_BYTES_TOKEN_UNIT;
} else if (!strncmp(entry, MRVL_TOK_PLCR_UNIT_PACKETS,
sizeof(MRVL_TOK_PLCR_UNIT_PACKETS))) {
cfg->port[port].policer_params.token_unit =
PP2_CLS_PLCR_PACKETS_TOKEN_UNIT;
} else {
MRVL_LOG(ERR, "Unknown token: %s", entry);
return -1;
}
}
/* Read policer color mode */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PLCR_COLOR);
if (entry) {
if (!strncmp(entry, MRVL_TOK_PLCR_COLOR_BLIND,
sizeof(MRVL_TOK_PLCR_COLOR_BLIND))) {
cfg->port[port].policer_params.color_mode =
PP2_CLS_PLCR_COLOR_BLIND_MODE;
} else if (!strncmp(entry, MRVL_TOK_PLCR_COLOR_AWARE,
sizeof(MRVL_TOK_PLCR_COLOR_AWARE))) {
cfg->port[port].policer_params.color_mode =
PP2_CLS_PLCR_COLOR_AWARE_MODE;
} else {
MRVL_LOG(ERR, "Error in parsing: %s", entry);
return -1;
}
}
/* Read policer cir */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PLCR_CIR);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].policer_params.cir = val;
}
/* Read policer cbs */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PLCR_CBS);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].policer_params.cbs = val;
}
/* Read policer ebs */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PLCR_EBS);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
cfg->port[port].policer_params.ebs = val;
}
cfg->port[port].setup_policer = 1;
return 0;
}
/**
* Parse parser udf.
*
* @param file Config file handle.
* @param sec_name section name
* @param udf udf index
* @param cfg[out] Parsing results.
* @returns 0 in case of success, negative value otherwise.
*/
static int
parse_udf(struct rte_cfgfile *file, const char *sec_name, int udf,
struct mrvl_cfg *cfg)
{
struct pp2_parse_udf_params *udf_params;
const char *entry, *entry_field;
uint32_t val, i;
uint8_t field_size;
char malloc_name[32], tmp_arr[3];
/* field len in chars equal to '0x' + rest of data */
#define FIELD_LEN_IN_CHARS(field_size) (uint32_t)(2 + (field_size) * 2)
udf_params = &cfg->pp2_cfg.prs_udfs.udfs[udf];
/* Read 'proto' field */
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_PARSER_UDF_PROTO);
if (!entry) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must be set\n", udf,
MRVL_TOK_PARSER_UDF_PROTO);
return -1;
}
/* Read 'field' field */
entry_field = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_PARSER_UDF_FIELD);
if (!entry_field) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must be set\n", udf,
MRVL_TOK_PARSER_UDF_FIELD);
return -1;
}
if (!strncmp(entry, MRVL_TOK_PARSER_UDF_PROTO_ETH,
sizeof(MRVL_TOK_PARSER_UDF_PROTO_ETH))) {
udf_params->match_proto = MV_NET_PROTO_ETH;
if (!strncmp(entry_field, MRVL_TOK_PARSER_UDF_FIELD_ETH_TYPE,
sizeof(MRVL_TOK_PARSER_UDF_FIELD_ETH_TYPE))) {
udf_params->match_field.eth = MV_NET_ETH_F_TYPE;
field_size = 2;
} else {
MRVL_LOG(ERR, "UDF[%d]: mismatch between '%s' proto "
"and '%s' field\n", udf,
MRVL_TOK_PARSER_UDF_PROTO_ETH,
entry_field);
return -1;
}
} else if (!strncmp(entry, MRVL_TOK_PARSER_UDF_PROTO_UDP,
sizeof(MRVL_TOK_PARSER_UDF_PROTO_UDP))) {
udf_params->match_proto = MV_NET_PROTO_UDP;
if (!strncmp(entry_field, MRVL_TOK_PARSER_UDF_FIELD_UDP_DPORT,
sizeof(MRVL_TOK_PARSER_UDF_FIELD_UDP_DPORT))) {
udf_params->match_field.udp = MV_NET_UDP_F_DP;
field_size = 2;
} else {
MRVL_LOG(ERR, "UDF[%d]: mismatch between '%s' proto "
"and '%s' field\n", udf,
MRVL_TOK_PARSER_UDF_PROTO_UDP,
entry_field);
return -1;
}
} else {
MRVL_LOG(ERR, "UDF[%d]: Unsupported '%s' proto\n", udf, entry);
return -1;
}
snprintf(malloc_name, sizeof(malloc_name), "mrvl_udf_%d_key", udf);
udf_params->match_key = rte_zmalloc(malloc_name, field_size, 0);
if (udf_params->match_key == NULL) {
MRVL_LOG(ERR, "Cannot allocate udf %d key\n", udf);
return -1;
}
snprintf(malloc_name, sizeof(malloc_name), "mrvl_udf_%d_mask", udf);
udf_params->match_mask = rte_zmalloc(malloc_name, field_size, 0);
if (udf_params->match_mask == NULL) {
MRVL_LOG(ERR, "Cannot allocate udf %d mask\n", udf);
return -1;
}
/* Read 'key' field */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PARSER_UDF_KEY);
if (!entry) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must be set\n", udf,
MRVL_TOK_PARSER_UDF_KEY);
return -1;
}
if (strncmp(entry, "0x", 2) != 0) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must start with '0x'\n",
udf, MRVL_TOK_PARSER_UDF_KEY);
return -EINVAL;
}
if (strlen(entry) != FIELD_LEN_IN_CHARS(field_size)) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field's len must be %d\n", udf,
MRVL_TOK_PARSER_UDF_KEY,
FIELD_LEN_IN_CHARS(field_size));
return -EINVAL;
}
entry += 2; /* skip the '0x' */
for (i = 0; i < field_size; i++) {
strncpy(tmp_arr, entry, 2);
tmp_arr[2] = '\0';
if (get_val_securely8(tmp_arr, 16,
&udf_params->match_key[i]) < 0) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field's value is not in "
"hex format\n", udf, MRVL_TOK_PARSER_UDF_KEY);
return -EINVAL;
}
entry += 2;
}
/* Read 'mask' field */
entry = rte_cfgfile_get_entry(file, sec_name, MRVL_TOK_PARSER_UDF_MASK);
if (!entry) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must be set\n", udf,
MRVL_TOK_PARSER_UDF_MASK);
return -1;
}
if (strncmp(entry, "0x", 2) != 0) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must start with '0x'\n",
udf, MRVL_TOK_PARSER_UDF_MASK);
return -EINVAL;
}
if (strlen(entry) != FIELD_LEN_IN_CHARS(field_size)) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field's len must be %d\n", udf,
MRVL_TOK_PARSER_UDF_MASK,
FIELD_LEN_IN_CHARS(field_size));
return -EINVAL;
}
entry += 2; /* skip the '0x' */
for (i = 0; i < field_size; i++) {
strncpy(tmp_arr, entry, 2);
tmp_arr[2] = '\0';
if (get_val_securely8(tmp_arr, 16,
&udf_params->match_mask[i]) < 0) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field's value is not in "
"hex format\n", udf, MRVL_TOK_PARSER_UDF_MASK);
return -EINVAL;
}
entry += 2;
}
/* Read offset */
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_PARSER_UDF_OFFSET);
if (!entry) {
MRVL_LOG(ERR, "UDF[%d]: '%s' field must be set\n", udf,
MRVL_TOK_PARSER_UDF_OFFSET);
return -1;
}
if (get_val_securely(entry, &val) < 0)
return -1;
udf_params->offset = val;
return 0;
}
/**
* Parse configuration - rte_kvargs_process handler.
*
* Opens configuration file and parses its content.
*
* @param key Unused.
* @param path Path to config file.
* @param extra_args Pointer to configuration structure.
* @returns 0 in case of success, exits otherwise.
*/
int
mrvl_get_cfg(const char *key __rte_unused, const char *path, void *extra_args)
{
struct mrvl_cfg **cfg = extra_args;
struct rte_cfgfile *file = rte_cfgfile_load(path, 0);
uint32_t val;
int n, i, ret;
const char *entry;
char sec_name[32];
if (file == NULL) {
MRVL_LOG(ERR, "Cannot load configuration %s\n", path);
return -1;
}
/* Create configuration. This is never accessed on the fast path,
* so we can ignore socket.
*/
*cfg = rte_zmalloc("mrvl_cfg", sizeof(struct mrvl_cfg), 0);
if (*cfg == NULL) {
MRVL_LOG(ERR, "Cannot allocate configuration %s\n", path);
return -1;
}
/* PP2 configuration */
n = rte_cfgfile_num_sections(file, MRVL_TOK_PARSER_UDF,
sizeof(MRVL_TOK_PARSER_UDF) - 1);
if (n && n > PP2_MAX_UDFS_SUPPORTED) {
MRVL_LOG(ERR, "found %d udf sections, but only %d are supported\n",
n, PP2_MAX_UDFS_SUPPORTED);
return -1;
}
(*cfg)->pp2_cfg.prs_udfs.num_udfs = n;
for (i = 0; i < n; i++) {
snprintf(sec_name, sizeof(sec_name), "%s %d",
MRVL_TOK_PARSER_UDF, i);
/* udf sections must be sequential. */
if (rte_cfgfile_num_sections(file, sec_name,
strlen(sec_name)) <= 0) {
MRVL_LOG(ERR, "udf sections must be sequential (0 - %d)\n",
PP2_MAX_UDFS_SUPPORTED - 1);
return -1;
}
ret = parse_udf(file, sec_name, i, *cfg);
if (ret) {
MRVL_LOG(ERR, "Error in parsing %s!\n", sec_name);
return -1;
}
}
/* PP2 Ports configuration */
n = rte_cfgfile_num_sections(file, MRVL_TOK_PORT,
sizeof(MRVL_TOK_PORT) - 1);
if (n == 0) {
/* This is weird, but not bad. */
MRVL_LOG(WARNING, "Empty configuration file?");
return 0;
}
/* Use the number of ports given as vdev parameters. */
for (n = 0; n < (PP2_NUM_ETH_PPIO * PP2_NUM_PKT_PROC); ++n) {
snprintf(sec_name, sizeof(sec_name), "%s %d %s",
MRVL_TOK_PORT, n, MRVL_TOK_DEFAULT);
/* Use global defaults, unless an override occurs */
(*cfg)->port[n].use_qos_global_defaults = 1;
/* Set non-zero defaults before the decision to continue to next
* port or to parse the port section in config file
*/
(*cfg)->port[n].fill_bpool_buffs = MRVL_BURST_SIZE;
/* Skip ports non-existing in configuration. */
if (rte_cfgfile_num_sections(file, sec_name,
strlen(sec_name)) <= 0) {
continue;
}
/* MRVL_TOK_START_HDR replaces MRVL_TOK_DSA_MODE parameter.
* MRVL_TOK_DSA_MODE will be supported for backward
* compatibillity.
*/
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_START_HDR);
/* if start_hsr is missing, check if dsa_mode exist instead */
if (entry == NULL)
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_DSA_MODE);
if (entry) {
if (!strncmp(entry, MRVL_TOK_START_HDR_NONE,
sizeof(MRVL_TOK_START_HDR_NONE)))
(*cfg)->port[n].eth_start_hdr =
PP2_PPIO_HDR_ETH;
else if (!strncmp(entry, MRVL_TOK_START_HDR_DSA,
sizeof(MRVL_TOK_START_HDR_DSA)))
(*cfg)->port[n].eth_start_hdr =
PP2_PPIO_HDR_ETH_DSA;
else if (!strncmp(entry, MRVL_TOK_START_HDR_CUSTOM,
sizeof(MRVL_TOK_START_HDR_CUSTOM)))
(*cfg)->port[n].eth_start_hdr =
PP2_PPIO_HDR_ETH_CUSTOM;
else if (!strncmp(entry, MRVL_TOK_START_HDR_EXT_DSA,
sizeof(MRVL_TOK_START_HDR_EXT_DSA))) {
(*cfg)->port[n].eth_start_hdr =
PP2_PPIO_HDR_ETH_EXT_DSA;
} else {
MRVL_LOG(ERR,
"Error in parsing %s value (%s)!\n",
MRVL_TOK_START_HDR, entry);
return -1;
}
} else {
(*cfg)->port[n].eth_start_hdr = PP2_PPIO_HDR_ETH;
}
/*
* Read per-port rate limiting. Setting that will
* disable per-queue rate limiting.
*/
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_RATE_LIMIT_ENABLE);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
(*cfg)->port[n].rate_limit_enable = val;
}
if ((*cfg)->port[n].rate_limit_enable) {
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_BURST_SIZE);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
(*cfg)->port[n].rate_limit_params.cbs = val;
}
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_RATE_LIMIT);
if (entry) {
if (get_val_securely(entry, &val) < 0)
return -1;
(*cfg)->port[n].rate_limit_params.cir = val;
}
}
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_MAPPING_PRIORITY);
if (entry) {
(*cfg)->port[n].use_qos_global_defaults = 0;
if (!strncmp(entry, MRVL_TOK_VLAN_IP,
sizeof(MRVL_TOK_VLAN_IP)))
(*cfg)->port[n].mapping_priority =
PP2_CLS_QOS_TBL_VLAN_IP_PRI;
else if (!strncmp(entry, MRVL_TOK_IP_VLAN,
sizeof(MRVL_TOK_IP_VLAN)))
(*cfg)->port[n].mapping_priority =
PP2_CLS_QOS_TBL_IP_VLAN_PRI;
else if (!strncmp(entry, MRVL_TOK_IP,
sizeof(MRVL_TOK_IP)))
(*cfg)->port[n].mapping_priority =
PP2_CLS_QOS_TBL_IP_PRI;
else if (!strncmp(entry, MRVL_TOK_VLAN,
sizeof(MRVL_TOK_VLAN))) {
(*cfg)->port[n].mapping_priority =
PP2_CLS_QOS_TBL_VLAN_PRI;
} else {
MRVL_LOG(ERR,
"Error in parsing %s value (%s)!\n",
MRVL_TOK_MAPPING_PRIORITY, entry);
return -1;
}
} else {
(*cfg)->port[n].mapping_priority =
PP2_CLS_QOS_TBL_NONE;
}
/* Parse policer configuration (if any) */
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_PLCR_DEFAULT);
if (entry) {
(*cfg)->port[n].use_qos_global_defaults = 0;
if (get_val_securely(entry, &val) < 0)
return -1;
snprintf(sec_name, sizeof(sec_name), "%s %d",
MRVL_TOK_PLCR, val);
ret = parse_policer(file, n, sec_name, *cfg);
if (ret)
return -1;
}
for (i = 0; i < MRVL_PP2_RXQ_MAX; ++i) {
ret = get_outq_cfg(file, n, i, *cfg);
if (ret < 0) {
MRVL_LOG(ERR,
"Error %d parsing port %d outq %d!\n",
ret, n, i);
return -1;
}
}
for (i = 0; i < MRVL_PP2_TC_MAX; ++i) {
ret = parse_tc_cfg(file, n, i, *cfg);
if (ret < 0) {
MRVL_LOG(ERR,
"Error %d parsing port %d tc %d!\n",
ret, n, i);
return -1;
}
}
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_DEFAULT_TC);
if (entry) {
if (get_val_securely(entry, &val) < 0 ||
val > USHRT_MAX)
return -1;
(*cfg)->port[n].default_tc = (uint8_t)val;
} else {
if ((*cfg)->port[n].use_qos_global_defaults == 0) {
MRVL_LOG(ERR,
"Default Traffic Class required in "
"custom configuration!");
return -1;
}
}
/* Parse forward bad frames option */
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_FWD_BAD_FRAMES);
if (entry) {
if (get_val_securely(entry, &val) < 0) {
MRVL_LOG(ERR,
"Error in parsing %s value (%s)!\n",
MRVL_TOK_FWD_BAD_FRAMES, entry);
return -1;
}
(*cfg)->port[n].forward_bad_frames = (uint8_t)val;
} else {
(*cfg)->port[n].forward_bad_frames = 0;
}
/* Parse fill bpool buffs option */
entry = rte_cfgfile_get_entry(file, sec_name,
MRVL_TOK_FILL_BPOOL_BUFFS);
if (entry) {
if (get_val_securely(entry, &val) < 0) {
MRVL_LOG(ERR,
"Error in parsing %s value (%s)!\n",
MRVL_TOK_FILL_BPOOL_BUFFS, entry);
return -1;
}
(*cfg)->port[n].fill_bpool_buffs = val;
}
}
return 0;
}
/**
* Setup Traffic Class.
*
* Fill in TC parameters in single MUSDK TC config entry.
* @param param TC parameters entry.
* @param inqs Number of MUSDK in-queues in this TC.
* @param bpool Bpool for this TC.
* @param color Default color for this TC.
* @returns 0 in case of success, exits otherwise.
*/
static int
setup_tc(struct pp2_ppio_tc_params *param, uint8_t inqs,
struct pp2_bpool *bpool, enum pp2_ppio_color color)
{
struct pp2_ppio_inq_params *inq_params;
param->pkt_offset = MRVL_PKT_OFFS;
param->pools[0][0] = bpool;
param->pools[0][1] = dummy_pool[bpool->pp2_id];
param->default_color = color;
inq_params = rte_zmalloc_socket("inq_params",
inqs * sizeof(*inq_params),
0, rte_socket_id());
if (!inq_params)
return -ENOMEM;
param->num_in_qs = inqs;
/* Release old config if necessary. */
if (param->inqs_params)
rte_free(param->inqs_params);
param->inqs_params = inq_params;
return 0;
}
/**
* Setup ingress policer.
*
* @param priv Port's private data.
* @param params Pointer to the policer's configuration.
* @param plcr_id Policer id.
* @returns 0 in case of success, negative values otherwise.
*/
static int
setup_policer(struct mrvl_priv *priv, struct pp2_cls_plcr_params *params)
{
char match[16];
int ret;
/*
* At this point no other policers are used which means
* any policer can be picked up and used as a default one.
*
* Lets use 0th then.
*/
sprintf(match, "policer-%d:%d\n", priv->pp_id, 0);
params->match = match;
ret = pp2_cls_plcr_init(params, &priv->default_policer);
if (ret) {
MRVL_LOG(ERR, "Failed to setup %s", match);
return -1;
}
priv->ppio_params.inqs_params.plcr = priv->default_policer;
priv->used_plcrs = BIT(0);
return 0;
}
/**
* Configure RX Queues in a given port.
*
* Sets up RX queues, their Traffic Classes and DPDK rxq->(TC,inq) mapping.
*
* @param priv Port's private data
* @param portid DPDK port ID
* @param max_queues Maximum number of queues to configure.
* @returns 0 in case of success, negative value otherwise.
*/
int
mrvl_configure_rxqs(struct mrvl_priv *priv, uint16_t portid,
uint16_t max_queues)
{
size_t i, tc;
if (mrvl_cfg == NULL ||
mrvl_cfg->port[portid].use_qos_global_defaults) {
/*
* No port configuration, use default: 1 TC, no QoS,
* TC color set to green.
*/
priv->ppio_params.inqs_params.num_tcs = 1;
setup_tc(&priv->ppio_params.inqs_params.tcs_params[0],
max_queues, priv->bpool, PP2_PPIO_COLOR_GREEN);
/* Direct mapping of queues i.e. 0->0, 1->1 etc. */
for (i = 0; i < max_queues; ++i) {
priv->rxq_map[i].tc = 0;
priv->rxq_map[i].inq = i;
}
return 0;
}
/* We need only a subset of configuration. */
struct port_cfg *port_cfg = &mrvl_cfg->port[portid];
priv->qos_tbl_params.type = port_cfg->mapping_priority;
/*
* We need to reverse mapping, from tc->pcp (better from usability
* point of view) to pcp->tc (configurable in MUSDK).
* First, set all map elements to "default".
*/
for (i = 0; i < RTE_DIM(priv->qos_tbl_params.pcp_cos_map); ++i)
priv->qos_tbl_params.pcp_cos_map[i].tc = port_cfg->default_tc;
/* Then, fill in all known values. */
for (tc = 0; tc < RTE_DIM(port_cfg->tc); ++tc) {
if (port_cfg->tc[tc].pcps > RTE_DIM(port_cfg->tc[0].pcp)) {
/* Better safe than sorry. */
MRVL_LOG(ERR,
"Too many PCPs configured in TC %zu!", tc);
return -1;
}
for (i = 0; i < port_cfg->tc[tc].pcps; ++i) {
priv->qos_tbl_params.pcp_cos_map[
port_cfg->tc[tc].pcp[i]].tc = tc;
}
}
/*
* The same logic goes with DSCP.
* First, set all map elements to "default".
*/
for (i = 0; i < RTE_DIM(priv->qos_tbl_params.dscp_cos_map); ++i)
priv->qos_tbl_params.dscp_cos_map[i].tc =
port_cfg->default_tc;
/* Fill in all known values. */
for (tc = 0; tc < RTE_DIM(port_cfg->tc); ++tc) {
if (port_cfg->tc[tc].dscps > RTE_DIM(port_cfg->tc[0].dscp)) {
/* Better safe than sorry. */
MRVL_LOG(ERR,
"Too many DSCPs configured in TC %zu!", tc);
return -1;
}
for (i = 0; i < port_cfg->tc[tc].dscps; ++i) {
priv->qos_tbl_params.dscp_cos_map[
port_cfg->tc[tc].dscp[i]].tc = tc;
}
}
/*
* Surprisingly, similar logic goes with queue mapping.
* We need only to store qid->tc mapping,
* to know TC when queue is read.
*/
for (i = 0; i < RTE_DIM(priv->rxq_map); ++i)
priv->rxq_map[i].tc = MRVL_UNKNOWN_TC;
/* Set up DPDKq->(TC,inq) mapping. */
for (tc = 0; tc < RTE_DIM(port_cfg->tc); ++tc) {
if (port_cfg->tc[tc].inqs > RTE_DIM(port_cfg->tc[0].inq)) {
/* Overflow. */
MRVL_LOG(ERR,
"Too many RX queues configured per TC %zu!",
tc);
return -1;
}
for (i = 0; i < port_cfg->tc[tc].inqs; ++i) {
uint8_t idx = port_cfg->tc[tc].inq[i];
if (idx > RTE_DIM(priv->rxq_map)) {
MRVL_LOG(ERR, "Bad queue index %d!", idx);
return -1;
}
priv->rxq_map[idx].tc = tc;
priv->rxq_map[idx].inq = i;
}
}
/*
* Set up TC configuration. TCs need to be sequenced: 0, 1, 2
* with no gaps. Empty TC means end of processing.
*/
for (i = 0; i < MRVL_PP2_TC_MAX; ++i) {
if (port_cfg->tc[i].inqs == 0)
break;
setup_tc(&priv->ppio_params.inqs_params.tcs_params[i],
port_cfg->tc[i].inqs,
priv->bpool, port_cfg->tc[i].color);
}
priv->ppio_params.inqs_params.num_tcs = i;
if (port_cfg->setup_policer)
return setup_policer(priv, &port_cfg->policer_params);
return 0;
}
/**
* Configure TX Queues in a given port.
*
* Sets up TX queues egress scheduler and limiter.
*
* @param priv Port's private data
* @param portid DPDK port ID
* @param max_queues Maximum number of queues to configure.
* @returns 0 in case of success, negative value otherwise.
*/
int
mrvl_configure_txqs(struct mrvl_priv *priv, uint16_t portid,
uint16_t max_queues)
{
/* We need only a subset of configuration. */
struct port_cfg *port_cfg = &mrvl_cfg->port[portid];
int i;
if (mrvl_cfg == NULL)
return 0;
priv->ppio_params.rate_limit_enable = port_cfg->rate_limit_enable;
if (port_cfg->rate_limit_enable)
priv->ppio_params.rate_limit_params =
port_cfg->rate_limit_params;
for (i = 0; i < max_queues; i++) {
struct pp2_ppio_outq_params *params =
&priv->ppio_params.outqs_params.outqs_params[i];
params->sched_mode = port_cfg->outq[i].sched_mode;
params->weight = port_cfg->outq[i].weight;
params->rate_limit_enable = port_cfg->outq[i].rate_limit_enable;
params->rate_limit_params = port_cfg->outq[i].rate_limit_params;
}
return 0;
}
/**
* Start QoS mapping.
*
* Finalize QoS table configuration and initialize it in SDK. It can be done
* only after port is started, so we have a valid ppio reference.
*
* @param priv Port's private (configuration) data.
* @returns 0 in case of success, exits otherwise.
*/
int
mrvl_start_qos_mapping(struct mrvl_priv *priv)
{
size_t i;
if (priv->qos_tbl_params.type == PP2_CLS_QOS_TBL_NONE)
return 0;
if (priv->ppio == NULL) {
MRVL_LOG(ERR, "ppio must not be NULL here!");
return -1;
}
for (i = 0; i < RTE_DIM(priv->qos_tbl_params.pcp_cos_map); ++i)
priv->qos_tbl_params.pcp_cos_map[i].ppio = priv->ppio;
for (i = 0; i < RTE_DIM(priv->qos_tbl_params.dscp_cos_map); ++i)
priv->qos_tbl_params.dscp_cos_map[i].ppio = priv->ppio;
/* Initialize Classifier QoS table. */
return pp2_cls_qos_tbl_init(&priv->qos_tbl_params, &priv->qos_tbl);
}