7f07e7d794
The functions for representor devargs parsing were static in the file rte_ethdev.c. In order to reuse them in the file rte_class_eth.c, they are moved to the files ethdev_private.c/.h. A log is fixed by adding a missing line feed. Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
122 lines
2.5 KiB
C
122 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Gaëtan Rivet
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*/
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#include "rte_ethdev.h"
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#include "rte_ethdev_driver.h"
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#include "ethdev_private.h"
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uint16_t
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eth_dev_to_id(const struct rte_eth_dev *dev)
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{
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if (dev == NULL)
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return RTE_MAX_ETHPORTS;
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return dev - rte_eth_devices;
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}
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struct rte_eth_dev *
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eth_find_device(const struct rte_eth_dev *start, rte_eth_cmp_t cmp,
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const void *data)
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{
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struct rte_eth_dev *edev;
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ptrdiff_t idx;
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/* Avoid Undefined Behaviour */
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if (start != NULL &&
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(start < &rte_eth_devices[0] ||
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start > &rte_eth_devices[RTE_MAX_ETHPORTS]))
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return NULL;
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if (start != NULL)
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idx = eth_dev_to_id(start) + 1;
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else
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idx = 0;
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for (; idx < RTE_MAX_ETHPORTS; idx++) {
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edev = &rte_eth_devices[idx];
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if (cmp(edev, data) == 0)
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return edev;
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}
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return NULL;
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}
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int
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rte_eth_devargs_parse_list(char *str, rte_eth_devargs_callback_t callback,
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void *data)
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{
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char *str_start;
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int state;
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int result;
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if (*str != '[')
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/* Single element, not a list */
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return callback(str, data);
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/* Sanity check, then strip the brackets */
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str_start = &str[strlen(str) - 1];
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if (*str_start != ']') {
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RTE_LOG(ERR, EAL, "(%s): List does not end with ']'\n", str);
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return -EINVAL;
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}
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str++;
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*str_start = '\0';
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/* Process list elements */
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state = 0;
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while (1) {
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if (state == 0) {
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if (*str == '\0')
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break;
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if (*str != ',') {
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str_start = str;
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state = 1;
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}
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} else if (state == 1) {
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if (*str == ',' || *str == '\0') {
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if (str > str_start) {
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/* Non-empty string fragment */
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*str = '\0';
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result = callback(str_start, data);
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if (result < 0)
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return result;
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}
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state = 0;
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}
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}
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str++;
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}
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return 0;
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}
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static int
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rte_eth_devargs_process_range(char *str, uint16_t *list, uint16_t *len_list,
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const uint16_t max_list)
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{
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uint16_t lo, hi, val;
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int result;
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result = sscanf(str, "%hu-%hu", &lo, &hi);
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if (result == 1) {
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if (*len_list >= max_list)
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return -ENOMEM;
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list[(*len_list)++] = lo;
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} else if (result == 2) {
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if (lo >= hi || lo > RTE_MAX_ETHPORTS || hi > RTE_MAX_ETHPORTS)
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return -EINVAL;
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for (val = lo; val <= hi; val++) {
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if (*len_list >= max_list)
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return -ENOMEM;
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list[(*len_list)++] = val;
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}
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} else
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return -EINVAL;
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return 0;
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}
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int
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rte_eth_devargs_parse_representor_ports(char *str, void *data)
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{
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struct rte_eth_devargs *eth_da = data;
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return rte_eth_devargs_process_range(str, eth_da->representor_ports,
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ð_da->nb_representor_ports, RTE_MAX_ETHPORTS);
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}
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