eal: add vdev init and uninit

[dpdk.git] / lib / librte_eal / common / eal_common_devargs.c

diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index eadd719..9b110f7 100644 (file)
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -44,13 +44,46 @@
 struct rte_devargs_list devargs_list =
        TAILQ_HEAD_INITIALIZER(devargs_list);
 
+int
+rte_eal_parse_devargs_str(const char *devargs_str,
+                       char **drvname, char **drvargs)
+{
+       char *sep;
+
+       if ((devargs_str) == NULL || (drvname) == NULL || (drvargs == NULL))
+               return -1;
+
+       *drvname = strdup(devargs_str);
+       if (drvname == NULL) {
+               RTE_LOG(ERR, EAL,
+                       "cannot allocate temp memory for driver name\n");
+               return -1;
+       }
+
+       /* set the first ',' to '\0' to split name and arguments */
+       sep = strchr(*drvname, ',');
+       if (sep != NULL) {
+               sep[0] = '\0';
+               *drvargs = strdup(sep + 1);
+       } else {
+               *drvargs = strdup("");
+       }
+
+       if (*drvargs == NULL) {
+               RTE_LOG(ERR, EAL,
+                       "cannot allocate temp memory for driver arguments\n");
+               free(*drvname);
+               return -1;
+       }
+       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;
-       char *sep;
        int ret;
 
        /* use malloc instead of rte_malloc as it's called early at init */
@@ -62,25 +95,8 @@ rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
        memset(devargs, 0, sizeof(*devargs));
        devargs->type = devtype;
 
-       buf = strdup(devargs_str);
-       if (buf == NULL) {
-               RTE_LOG(ERR, EAL, "cannot allocate temp memory for devargs\n");
-               goto fail;
-       }
-
-       /* set the first ',' to '\0' to split name and arguments */
-       sep = strchr(buf, ',');
-       if (sep != NULL) {
-               sep[0] = '\0';
-               devargs->args = strdup(sep + 1);
-       } else {
-               devargs->args = strdup("");
-       }
-
-       if (devargs->args == NULL) {
-               RTE_LOG(ERR, EAL, "cannot allocate for devargs args\n");
+       if (rte_eal_parse_devargs_str(devargs_str, &buf, &devargs->args))
                goto fail;
-       }
 
        switch (devargs->type) {
        case RTE_DEVTYPE_WHITELISTED_PCI: