#include <stdio.h>
#include <string.h>
-#include <rte_pci.h>
+#include <rte_dev.h>
#include <rte_devargs.h>
+#include <rte_tailq.h>
#include "eal_private.h"
/** Global list of user devices */
return 0;
}
+static int
+bus_name_cmp(const struct rte_bus *bus, const void *name)
+{
+ return strncmp(bus->name, name, strlen(bus->name));
+}
+
+int
+rte_eal_devargs_parse(const char *dev, struct rte_devargs *da)
+{
+ struct rte_bus *bus = NULL;
+ const char *devname;
+ const size_t maxlen = sizeof(da->name);
+ size_t i;
+
+ if (dev == NULL || da == NULL)
+ return -EINVAL;
+ /* Retrieve eventual bus info */
+ do {
+ devname = dev;
+ bus = rte_bus_find(bus, bus_name_cmp, dev);
+ if (bus == NULL)
+ break;
+ devname = dev + strlen(bus->name) + 1;
+ if (rte_bus_find_by_device_name(devname) == bus)
+ break;
+ } while (1);
+ /* Store device name */
+ i = 0;
+ while (devname[i] != '\0' && devname[i] != ',') {
+ da->name[i] = devname[i];
+ i++;
+ if (i == maxlen) {
+ fprintf(stderr, "WARNING: Parsing \"%s\": device name should be shorter than %zu\n",
+ dev, maxlen);
+ da->name[i - 1] = '\0';
+ return -EINVAL;
+ }
+ }
+ da->name[i] = '\0';
+ if (bus == NULL) {
+ bus = rte_bus_find_by_device_name(da->name);
+ if (bus == NULL) {
+ fprintf(stderr, "ERROR: failed to parse device \"%s\"\n",
+ da->name);
+ return -EFAULT;
+ }
+ }
+ da->bus = bus;
+ /* Parse eventual device arguments */
+ if (devname[i] == ',')
+ da->args = strdup(&devname[i + 1]);
+ else
+ da->args = strdup("");
+ if (da->args == NULL) {
+ fprintf(stderr, "ERROR: not enough memory to parse arguments\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+int
+rte_eal_devargs_insert(struct rte_devargs *da)
+{
+ int ret;
+
+ ret = rte_eal_devargs_remove(da->bus->name, da->name);
+ if (ret < 0)
+ return ret;
+ TAILQ_INSERT_TAIL(&devargs_list, da, next);
+ return 0;
+}
+
/* store a whitelist parameter for later parsing */
int
rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
{
struct rte_devargs *devargs = NULL;
- char *buf = NULL;
- int ret;
+ struct rte_bus *bus = NULL;
+ const char *dev = devargs_str;
- /* use malloc instead of rte_malloc as it's called early at init */
- devargs = malloc(sizeof(*devargs));
+ /* use calloc instead of rte_zmalloc as it's called early at init */
+ devargs = calloc(1, sizeof(*devargs));
if (devargs == NULL)
goto fail;
- memset(devargs, 0, sizeof(*devargs));
- devargs->type = devtype;
-
- if (rte_eal_parse_devargs_str(devargs_str, &buf, &devargs->args))
+ if (rte_eal_devargs_parse(dev, devargs))
goto fail;
-
- switch (devargs->type) {
- case RTE_DEVTYPE_WHITELISTED_PCI:
- case RTE_DEVTYPE_BLACKLISTED_PCI:
- /* try to parse pci identifier */
- if (eal_parse_pci_BDF(buf, &devargs->pci.addr) != 0 &&
- eal_parse_pci_DomBDF(buf, &devargs->pci.addr) != 0)
- goto fail;
-
- break;
- case RTE_DEVTYPE_VIRTUAL:
- /* save driver name */
- ret = snprintf(devargs->virt.drv_name,
- sizeof(devargs->virt.drv_name), "%s", buf);
- if (ret < 0 || ret >= (int)sizeof(devargs->virt.drv_name))
- goto fail;
-
- break;
+ devargs->type = devtype;
+ bus = devargs->bus;
+ if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
+ devargs->policy = RTE_DEV_BLACKLISTED;
+ if (bus->conf.scan_mode == RTE_BUS_SCAN_UNDEFINED) {
+ if (devargs->policy == RTE_DEV_WHITELISTED)
+ bus->conf.scan_mode = RTE_BUS_SCAN_WHITELIST;
+ else if (devargs->policy == RTE_DEV_BLACKLISTED)
+ bus->conf.scan_mode = RTE_BUS_SCAN_BLACKLIST;
}
-
- free(buf);
TAILQ_INSERT_TAIL(&devargs_list, devargs, next);
return 0;
fail:
- free(buf);
if (devargs) {
free(devargs->args);
free(devargs);
return -1;
}
+int
+rte_eal_devargs_remove(const char *busname, const char *devname)
+{
+ struct rte_devargs *d;
+ void *tmp;
+
+ TAILQ_FOREACH_SAFE(d, &devargs_list, next, tmp) {
+ if (strcmp(d->bus->name, busname) == 0 &&
+ strcmp(d->name, devname) == 0) {
+ TAILQ_REMOVE(&devargs_list, d, next);
+ free(d->args);
+ free(d);
+ return 0;
+ }
+ }
+ return 1;
+}
+
/* count the number of devices of a specified type */
unsigned int
rte_eal_devargs_type_count(enum rte_devtype devtype)
{
struct rte_devargs *devargs;
- fprintf(f, "User device white list:\n");
+ fprintf(f, "User device list:\n");
TAILQ_FOREACH(devargs, &devargs_list, next) {
- if (devargs->type == RTE_DEVTYPE_WHITELISTED_PCI)
- fprintf(f, " PCI whitelist " PCI_PRI_FMT " %s\n",
- devargs->pci.addr.domain,
- devargs->pci.addr.bus,
- devargs->pci.addr.devid,
- devargs->pci.addr.function,
- devargs->args);
- else if (devargs->type == RTE_DEVTYPE_BLACKLISTED_PCI)
- fprintf(f, " PCI blacklist " PCI_PRI_FMT " %s\n",
- devargs->pci.addr.domain,
- devargs->pci.addr.bus,
- devargs->pci.addr.devid,
- devargs->pci.addr.function,
- devargs->args);
- else if (devargs->type == RTE_DEVTYPE_VIRTUAL)
- fprintf(f, " VIRTUAL %s %s\n",
- devargs->virt.drv_name,
- devargs->args);
- else
- fprintf(f, " UNKNOWN %s\n", devargs->args);
+ fprintf(f, " [%s]: %s %s\n",
+ (devargs->bus ? devargs->bus->name : "??"),
+ devargs->name, devargs->args);
}
}
Code Review / deb_dpdk.git / blobdiff