ethdev: add return values to callback process API

[dpdk.git] / lib / librte_ether / rte_ethdev.c

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 81a45c0..71a576c 100644 (file)
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2017 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -129,6 +129,7 @@ struct rte_eth_dev_callback {
        TAILQ_ENTRY(rte_eth_dev_callback) next; /**< Callbacks list */
        rte_eth_dev_cb_fn cb_fn;                /**< Callback address */
        void *cb_arg;                           /**< Parameter for callback */
+       void *ret_param;                        /**< Return parameter */
        enum rte_eth_event_type event;          /**< Interrupt event type */
        uint32_t active;                        /**< Callback is executing */
 };
@@ -2717,12 +2718,13 @@ rte_eth_dev_callback_unregister(uint8_t port_id,
        return ret;
 }
 
-void
+int
 _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
-       enum rte_eth_event_type event, void *cb_arg)
+       enum rte_eth_event_type event, void *cb_arg, void *ret_param)
 {
        struct rte_eth_dev_callback *cb_lst;
        struct rte_eth_dev_callback dev_cb;
+       int rc = 0;
 
        rte_spinlock_lock(&rte_eth_dev_cb_lock);
        TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
@@ -2732,14 +2734,17 @@ _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
                cb_lst->active = 1;
                if (cb_arg != NULL)
                        dev_cb.cb_arg = cb_arg;
+               if (ret_param != NULL)
+                       dev_cb.ret_param = ret_param;
 
                rte_spinlock_unlock(&rte_eth_dev_cb_lock);
-               dev_cb.cb_fn(dev->data->port_id, dev_cb.event,
-                                               dev_cb.cb_arg);
+               rc = dev_cb.cb_fn(dev->data->port_id, dev_cb.event,
+                               dev_cb.cb_arg, dev_cb.ret_param);
                rte_spinlock_lock(&rte_eth_dev_cb_lock);
                cb_lst->active = 0;
        }
        rte_spinlock_unlock(&rte_eth_dev_cb_lock);
+       return rc;
 }
 
 int