common/cnxk: fix null access in IPv6 flow parsing

[dpdk.git] / drivers / common / cnxk / roc_model.c

diff --git a/drivers/common/cnxk/roc_model.c b/drivers/common/cnxk/roc_model.c
index e5aeabe..447dc6e 100644 (file)
--- a/drivers/common/cnxk/roc_model.c
+++ b/drivers/common/cnxk/roc_model.c
@@ -178,6 +178,55 @@ detect_invalid_config(void)
 #endif
 }
 
+static uint64_t
+env_lookup_flag(const char *name)
+{
+       unsigned int i;
+       struct {
+               const char *name;
+               uint64_t flag;
+       } envs[] = {
+               {"HW_PLATFORM", ROC_ENV_HW},
+               {"EMUL_PLATFORM", ROC_ENV_EMUL},
+               {"ASIM_PLATFORM", ROC_ENV_ASIM},
+       };
+
+       for (i = 0; i < PLT_DIM(envs); i++)
+               if (!strncmp(envs[i].name, name, strlen(envs[i].name)))
+                       return envs[i].flag;
+
+       return 0;
+}
+
+static void
+of_env_get(struct roc_model *model)
+{
+       const char *const path = "/proc/device-tree/soc@0/runplatform";
+       uint64_t flag;
+       FILE *fp;
+
+       fp = fopen(path, "r");
+       if (!fp) {
+               plt_err("Failed to open %s", path);
+               return;
+       }
+
+       if (!fgets(model->env, sizeof(model->env), fp)) {
+               plt_err("Failed to read %s", path);
+               goto err;
+       }
+
+       flag = env_lookup_flag(model->env);
+       if (flag == 0) {
+               plt_err("Unknown platform: %s", model->env);
+               goto err;
+       }
+
+       model->flag |= flag;
+err:
+       fclose(fp);
+}
+
 int
 roc_model_init(struct roc_model *model)
 {
@@ -197,8 +246,10 @@ roc_model_init(struct roc_model *model)
        if (!populate_model(model, midr))
                goto err;
 
+       of_env_get(model);
+
        rc = 0;
-       plt_info("RoC Model: %s", model->name);
+       plt_info("RoC Model: %s (%s)", model->name, model->env);
        roc_model = model;
 err:
        return rc;