* Copyright 2018 Gaƫtan Rivet
*/
+#include <sys/queue.h>
+
#include <rte_bus.h>
+#include <rte_bus_pci.h>
#include <rte_dev.h>
#include <rte_errno.h>
#include <rte_kvargs.h>
+#include <rte_devargs.h>
#include <rte_pci.h>
+#include <rte_debug.h>
#include "private.h"
enum pci_params {
- RTE_PCI_PARAMS_MAX,
+ RTE_PCI_PARAM_ADDR,
+ RTE_PCI_PARAM_MAX,
};
static const char * const pci_params_keys[] = {
- [RTE_PCI_PARAMS_MAX] = NULL,
+ [RTE_PCI_PARAM_ADDR] = "addr",
+ [RTE_PCI_PARAM_MAX] = NULL,
};
+static int
+pci_addr_kv_cmp(const char *key __rte_unused,
+ const char *value,
+ void *_addr2)
+{
+ struct rte_pci_addr _addr1;
+ struct rte_pci_addr *addr1 = &_addr1;
+ struct rte_pci_addr *addr2 = _addr2;
+
+ if (rte_pci_addr_parse(value, addr1))
+ return -1;
+ return -abs(rte_pci_addr_cmp(addr1, addr2));
+}
+
static int
pci_dev_match(const struct rte_device *dev,
const void *_kvlist)
{
const struct rte_kvargs *kvlist = _kvlist;
+ const struct rte_pci_device *pdev;
- (void) dev;
- (void) kvlist;
+ if (kvlist == NULL)
+ /* Empty string matches everything. */
+ return 0;
+ pdev = RTE_DEV_TO_PCI_CONST(dev);
+ /* if any field does not match. */
+ if (rte_kvargs_process(kvlist, pci_params_keys[RTE_PCI_PARAM_ADDR],
+ &pci_addr_kv_cmp,
+ (void *)(intptr_t)&pdev->addr))
+ return 1;
return 0;
}
rte_kvargs_free(kvargs);
return dev;
}
+
+int
+rte_pci_devargs_parse(struct rte_devargs *da)
+{
+ struct rte_kvargs *kvargs;
+ const char *addr_str;
+ struct rte_pci_addr addr;
+ int ret = 0;
+
+ if (da == NULL || da->bus_str == NULL)
+ return 0;
+
+ kvargs = rte_kvargs_parse(da->bus_str, NULL);
+ if (kvargs == NULL) {
+ RTE_LOG(ERR, EAL, "cannot parse argument list: %s\n",
+ da->bus_str);
+ ret = -ENODEV;
+ goto out;
+ }
+
+ addr_str = rte_kvargs_get(kvargs, pci_params_keys[RTE_PCI_PARAM_ADDR]);
+ if (addr_str == NULL) {
+ RTE_LOG(DEBUG, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
+ pci_params_keys[RTE_PCI_PARAM_ADDR], da->bus_str);
+ goto out;
+ }
+
+ ret = rte_pci_addr_parse(addr_str, &addr);
+ if (ret != 0) {
+ RTE_LOG(ERR, EAL, "PCI address invalid: %s\n", da->bus_str);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ rte_pci_device_name(&addr, da->name, sizeof(da->name));
+
+out:
+ rte_kvargs_free(kvargs);
+ if (ret != 0)
+ rte_errno = -ret;
+ return ret;
+}