[dpdk-dev] [PATCH v6 2/8] eal/linux: add rx queue interrupt FDs to intr handle struct

[Cunming Liang]

Per vector event fd will store in rte_intr_handle during init.
Device drivers take responsibility to fill queue-vec mapping table(vec_num[]).

Signed-off-by: Danny Zhou <danny.zhou at intel.com>
Signed-off-by: Cunming Liang <cunming.liang at intel.com>
---
v6 changes:
 - add mapping table between irq vector number and queue id.

v5 changes:
 - Create this new patch file for changed struct rte_intr_handle that
   other patches depend on, to avoid breaking git bisect.

 lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h | 9 +++++++++
 1 file changed, 9 insertions(+)

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 6a159c7..9f45377 100644
--- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
+++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_interrupts.h
@@ -38,6 +38,9 @@
 #ifndef _RTE_LINUXAPP_INTERRUPTS_H_
 #define _RTE_LINUXAPP_INTERRUPTS_H_

+#define VFIO_MAX_RXTX_INTR_ID        32
+#define VFIO_MAX_QUEUE_ID            VFIO_MAX_RXTX_INTR_ID
+
 enum rte_intr_handle_type {
        RTE_INTR_HANDLE_UNKNOWN = 0,
        RTE_INTR_HANDLE_UIO,      /**< uio device handle */
@@ -48,6 +51,9 @@ enum rte_intr_handle_type {
        RTE_INTR_HANDLE_MAX
 };

+#define RTE_INTR_EVENT_ADD            1UL
+#define        RTE_INTR_EVENT_DEL            2UL
+
 /** Handle for interrupts. */
 struct rte_intr_handle {
        union {
@@ -57,6 +63,9 @@ struct rte_intr_handle {
        };
        int fd;  /**< interrupt event file descriptor */
        enum rte_intr_handle_type type;  /**< handle type */
+       int max_intr;                    /**< max interrupt requested */
+       int efds[VFIO_MAX_RXTX_INTR_ID]; /**< rxtx intr event fd for vfio */
+       uint32_t vec_num[VFIO_MAX_QUEUE_ID]; /**< rxtx intr vector number */
 };

 #endif /* _RTE_LINUXAPP_INTERRUPTS_H_ */
-- 
1.8.1.4