1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2018 Gaƫtan Rivet
8 #include <rte_bus_pci.h>
10 #include <rte_errno.h>
11 #include <rte_kvargs.h>
12 #include <rte_devargs.h>
14 #include <rte_debug.h>
23 static const char * const pci_params_keys[] = {
24 [RTE_PCI_PARAM_ADDR] = "addr",
25 [RTE_PCI_PARAM_MAX] = NULL,
29 pci_addr_kv_cmp(const char *key __rte_unused,
33 struct rte_pci_addr _addr1;
34 struct rte_pci_addr *addr1 = &_addr1;
35 struct rte_pci_addr *addr2 = _addr2;
37 if (rte_pci_addr_parse(value, addr1))
39 return -abs(rte_pci_addr_cmp(addr1, addr2));
43 pci_dev_match(const struct rte_device *dev,
46 const struct rte_kvargs *kvlist = _kvlist;
47 const struct rte_pci_device *pdev;
50 /* Empty string matches everything. */
52 pdev = RTE_DEV_TO_PCI_CONST(dev);
53 /* if any field does not match. */
54 if (rte_kvargs_process(kvlist, pci_params_keys[RTE_PCI_PARAM_ADDR],
56 (void *)(intptr_t)&pdev->addr))
62 rte_pci_dev_iterate(const void *start,
64 const struct rte_dev_iterator *it __rte_unused)
66 rte_bus_find_device_t find_device;
67 struct rte_kvargs *kvargs = NULL;
68 struct rte_device *dev;
71 kvargs = rte_kvargs_parse(str, pci_params_keys);
73 RTE_LOG(ERR, EAL, "cannot parse argument list\n");
78 find_device = rte_pci_bus.bus.find_device;
79 dev = find_device(start, pci_dev_match, kvargs);
80 rte_kvargs_free(kvargs);
85 rte_pci_devargs_parse(struct rte_devargs *da)
87 struct rte_kvargs *kvargs;
89 struct rte_pci_addr addr;
92 if (da == NULL || da->bus_str == NULL)
95 kvargs = rte_kvargs_parse(da->bus_str, NULL);
97 RTE_LOG(ERR, EAL, "cannot parse argument list: %s\n",
103 addr_str = rte_kvargs_get(kvargs, pci_params_keys[RTE_PCI_PARAM_ADDR]);
104 if (addr_str == NULL) {
105 RTE_LOG(DEBUG, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
106 pci_params_keys[RTE_PCI_PARAM_ADDR], da->bus_str);
110 ret = rte_pci_addr_parse(addr_str, &addr);
112 RTE_LOG(ERR, EAL, "PCI address invalid: %s\n", da->bus_str);
117 rte_pci_device_name(&addr, da->name, sizeof(da->name));
120 rte_kvargs_free(kvargs);