eal: query multi-vector interrupt capability

[dpdk.git] / lib / librte_eal / linuxapp / eal / include / exec-env / rte_interrupts.h

diff --git a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
index b095b86..3dacbff 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
+++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
@@ -39,6 +39,8 @@
 #define _RTE_LINUXAPP_INTERRUPTS_H_
 
 #define RTE_MAX_RXTX_INTR_VEC_ID     32
+#define RTE_INTR_VEC_ZERO_OFFSET      0
+#define RTE_INTR_VEC_RXTX_OFFSET      1
 
 enum rte_intr_handle_type {
        RTE_INTR_HANDLE_UNKNOWN = 0,
@@ -174,8 +176,9 @@ rte_intr_rx_ctl(struct rte_intr_handle *intr_handle,
  *
  * @param intr_handle
  *   Pointer to the interrupt handle.
- * @param nb_vec
+ * @param nb_efd
  *   Number of interrupt vector trying to enable.
+ *   The value 0 is not allowed.
  * @return
  *   - On success, zero.
  *   - On failure, a negative value.
@@ -212,4 +215,14 @@ rte_intr_dp_is_en(struct rte_intr_handle *intr_handle);
 int
 rte_intr_allow_others(struct rte_intr_handle *intr_handle);
 
+/**
+ * The multiple interrupt vector capability of interrupt handle instance.
+ * It returns zero if no multiple interrupt vector support.
+ *
+ * @param intr_handle
+ *   Pointer to the interrupt handle.
+ */
+int
+rte_intr_cap_multiple(struct rte_intr_handle *intr_handle);
+
 #endif /* _RTE_LINUXAPP_INTERRUPTS_H_ */