1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2018 Gaƫtan Rivet
6 #include <rte_bus_pci.h>
9 #include <rte_kvargs.h>
10 #include <rte_devargs.h>
12 #include <rte_debug.h>
21 static const char * const pci_params_keys[] = {
22 [RTE_PCI_PARAM_ADDR] = "addr",
23 [RTE_PCI_PARAM_MAX] = NULL,
27 pci_addr_kv_cmp(const char *key __rte_unused,
31 struct rte_pci_addr _addr1;
32 struct rte_pci_addr *addr1 = &_addr1;
33 struct rte_pci_addr *addr2 = _addr2;
35 if (rte_pci_addr_parse(value, addr1))
37 return -abs(rte_pci_addr_cmp(addr1, addr2));
41 pci_dev_match(const struct rte_device *dev,
44 const struct rte_kvargs *kvlist = _kvlist;
45 const struct rte_pci_device *pdev;
48 /* Empty string matches everything. */
50 pdev = RTE_DEV_TO_PCI_CONST(dev);
51 /* if any field does not match. */
52 if (rte_kvargs_process(kvlist, pci_params_keys[RTE_PCI_PARAM_ADDR],
54 (void *)(intptr_t)&pdev->addr))
60 rte_pci_dev_iterate(const void *start,
62 const struct rte_dev_iterator *it __rte_unused)
64 rte_bus_find_device_t find_device;
65 struct rte_kvargs *kvargs = NULL;
66 struct rte_device *dev;
69 kvargs = rte_kvargs_parse(str, pci_params_keys);
71 RTE_LOG(ERR, EAL, "cannot parse argument list\n");
76 find_device = rte_pci_bus.bus.find_device;
77 dev = find_device(start, pci_dev_match, kvargs);
78 rte_kvargs_free(kvargs);
83 rte_pci_devargs_parse(struct rte_devargs *da)
85 struct rte_kvargs *kvargs;
87 struct rte_pci_addr addr;
92 RTE_ASSERT(da->bus_str != NULL);
94 kvargs = rte_kvargs_parse(da->bus_str, NULL);
96 RTE_LOG(ERR, EAL, "cannot parse argument list: %s\n",
102 addr_str = rte_kvargs_get(kvargs, pci_params_keys[RTE_PCI_PARAM_ADDR]);
103 if (addr_str == NULL) {
104 RTE_LOG(ERR, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
105 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));
121 rte_kvargs_free(kvargs);