1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Gaƫtan Rivet
7 #include <cmdline_parse_etheraddr.h>
9 #include <rte_compat.h>
10 #include <rte_errno.h>
11 #include <rte_kvargs.h>
14 #include "rte_ethdev.h"
15 #include "rte_ethdev_core.h"
16 #include "rte_ethdev_driver.h"
17 #include "ethdev_private.h"
21 RTE_ETH_PARAM_REPRESENTOR,
25 static const char * const eth_params_keys[] = {
26 [RTE_ETH_PARAM_MAC] = "mac",
27 [RTE_ETH_PARAM_REPRESENTOR] = "representor",
28 [RTE_ETH_PARAM_MAX] = NULL,
31 struct eth_dev_match_arg {
32 struct rte_device *device;
33 struct rte_kvargs *kvlist;
36 #define eth_dev_match_arg(d, k) \
37 (&(const struct eth_dev_match_arg) { \
43 eth_mac_cmp(const char *key __rte_unused,
44 const char *value, void *opaque)
47 struct ether_addr mac;
48 const struct rte_eth_dev_data *data = opaque;
49 struct rte_eth_dev_info dev_info;
52 /* Parse devargs MAC address. */
54 * cannot use ether_aton_r(value, &mac)
55 * because of include conflict with rte_ether.h
57 ret = cmdline_parse_etheraddr(NULL, value, &mac, sizeof(mac));
59 return -1; /* invalid devargs value */
61 /* Return 0 if devargs MAC is matching one of the device MACs. */
62 rte_eth_dev_info_get(data->port_id, &dev_info);
63 for (index = 0; index < dev_info.max_mac_addrs; index++)
64 if (is_same_ether_addr(&mac, &data->mac_addrs[index]))
66 return -1; /* no match */
70 eth_representor_cmp(const char *key __rte_unused,
71 const char *value, void *opaque)
75 const struct rte_eth_dev_data *data = opaque;
76 struct rte_eth_devargs representors;
79 if ((data->dev_flags & RTE_ETH_DEV_REPRESENTOR) == 0)
80 return -1; /* not a representor port */
82 /* Parse devargs representor values. */
83 values = strdup(value);
86 memset(&representors, 0, sizeof(representors));
87 ret = rte_eth_devargs_parse_list(values,
88 rte_eth_devargs_parse_representor_ports,
92 return -1; /* invalid devargs value */
94 /* Return 0 if representor id is matching one of the values. */
95 for (index = 0; index < representors.nb_representor_ports; index++)
96 if (data->representor_id ==
97 representors.representor_ports[index])
99 return -1; /* no match */
103 eth_dev_match(const struct rte_eth_dev *edev,
107 const struct eth_dev_match_arg *arg = _arg;
108 const struct rte_kvargs *kvlist = arg->kvlist;
111 if (edev->state == RTE_ETH_DEV_UNUSED)
113 if (arg->device != NULL && arg->device != edev->device)
116 ret = rte_kvargs_process(kvlist,
117 eth_params_keys[RTE_ETH_PARAM_MAC],
118 eth_mac_cmp, edev->data);
122 ret = rte_kvargs_process(kvlist,
123 eth_params_keys[RTE_ETH_PARAM_REPRESENTOR],
124 eth_representor_cmp, edev->data);
127 /* search for representor key */
128 for (pair = 0; pair < kvlist->count; pair++) {
129 ret = strcmp(kvlist->pairs[pair].key,
130 eth_params_keys[RTE_ETH_PARAM_REPRESENTOR]);
132 break; /* there is a representor key */
134 /* if no representor key, default is to not match representor ports */
136 if ((edev->data->dev_flags & RTE_ETH_DEV_REPRESENTOR) != 0)
137 return -1; /* do not match any representor */
143 eth_dev_iterate(const void *start,
145 const struct rte_dev_iterator *it)
147 struct rte_kvargs *kvargs = NULL;
148 struct rte_eth_dev *edev = NULL;
149 const char * const *valid_keys = NULL;
152 if (str[0] == '+') /* no validation of keys */
155 valid_keys = eth_params_keys;
156 kvargs = rte_kvargs_parse(str, valid_keys);
157 if (kvargs == NULL) {
158 RTE_LOG(ERR, EAL, "cannot parse argument list\n");
163 edev = eth_find_device(start, eth_dev_match,
164 eth_dev_match_arg(it->device, kvargs));
165 rte_kvargs_free(kvargs);
169 static struct rte_class rte_class_eth = {
170 .dev_iterate = eth_dev_iterate,
173 RTE_REGISTER_CLASS(eth, rte_class_eth);