diff mbox

[dpdk-dev,v7,01/10] eal/linux: add interrupt vectors support in intr_handle

Message ID 1430804386-28949-2-git-send-email-cunming.liang@intel.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Cunming Liang May 5, 2015, 5:39 a.m. UTC 
The patch adds interrupt vectors support in rte_intr_handle.
'vec_en' is set when interrupt vectors are detected and associated event fds are set.
Those event fds are stored in efds[].
'intr_vec' is reserved for device driver to initialize the vector mapping table.
When the event fds add to a specified epoll instance, 'eptrs' will hold the rte_epoll_event object pointer.

Signed-off-by: Danny Zhou <danny.zhou@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
---
v7 changes:
 - add eptrs[], it's used to store the register rte_epoll_event instances.
 - add vec_en, to log the vector capability status.

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 | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox

Patch

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..e1f4a7a 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 +38,8 @@ 
 #ifndef _RTE_LINUXAPP_INTERRUPTS_H_
 #define _RTE_LINUXAPP_INTERRUPTS_H_
 
+#define RTE_MAX_RXTX_INTR_VEC_ID     32
+
 enum rte_intr_handle_type {
 	RTE_INTR_HANDLE_UNKNOWN = 0,
 	RTE_INTR_HANDLE_UIO,      /**< uio device handle */
@@ -48,6 +50,8 @@  enum rte_intr_handle_type {
 	RTE_INTR_HANDLE_MAX
 };
 
+struct rte_epoll_event;
+
 /** Handle for interrupts. */
 struct rte_intr_handle {
 	union {
@@ -57,6 +61,12 @@  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 vec_en;                      /**< intr vectors enabled */
+	int efds[RTE_MAX_RXTX_INTR_VEC_ID];  /**< intr vectors/efds mapping */
+	struct rte_epoll_event *eptrs[RTE_MAX_RXTX_INTR_VEC_ID];
+					 /**< intr vector epoll event ptr */
+	int *intr_vec;                   /**< intr vector number array */
 };
 
 #endif /* _RTE_LINUXAPP_INTERRUPTS_H_ */