be2net: cleanup MCC async event processing code

The MCC async event processing code has 2 issues:
a) because of long struct names the code indentation is badly broken
b) description and definitions of how an MCC completion is interpreted as
   an async event are confusing (for e.g. the last word of an MCC event is
   named "code", while "code" is just a sub-field of the last word.)

This patch fixes the structure definitions, comments and re-factors code
as needed.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 15 insertions, 19 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index af624039c0a8..d4616ffb7238 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -87,13 +87,13 @@ struct be_mcc_compl {
 	u32 flags;		/* dword 3 */
 };
 
-/* When the async bit of mcc_compl is set, the last 4 bytes of
- * mcc_compl is interpreted as follows:
+/* When the async bit of mcc_compl flags is set, flags
+ * is interpreted as follows:
  */
-#define ASYNC_TRAILER_EVENT_CODE_SHIFT	8	/* bits 8 - 15 */
-#define ASYNC_TRAILER_EVENT_CODE_MASK	0xFF
-#define ASYNC_TRAILER_EVENT_TYPE_SHIFT	16
-#define ASYNC_TRAILER_EVENT_TYPE_MASK	0xFF
+#define ASYNC_EVENT_CODE_SHIFT		8	/* bits 8 - 15 */
+#define ASYNC_EVENT_CODE_MASK		0xFF
+#define ASYNC_EVENT_TYPE_SHIFT		16
+#define ASYNC_EVENT_TYPE_MASK		0xFF
 #define ASYNC_EVENT_CODE_LINK_STATE	0x1
 #define ASYNC_EVENT_CODE_GRP_5		0x5
 #define ASYNC_EVENT_QOS_SPEED		0x1
@@ -102,10 +102,6 @@ struct be_mcc_compl {
 #define ASYNC_EVENT_CODE_QNQ		0x6
 #define ASYNC_DEBUG_EVENT_TYPE_QNQ	1
 
-struct be_async_event_trailer {
-	u32 code;
-};
-
 enum {
 	LINK_DOWN	= 0x0,
 	LINK_UP		= 0x1
@@ -113,7 +109,7 @@ enum {
 #define LINK_STATUS_MASK			0x1
 #define LOGICAL_LINK_STATUS_MASK		0x2
 
-/* When the event code of an async trailer is link-state, the mcc_compl
+/* When the event code of compl->flags is link-state, the mcc_compl
  * must be interpreted as follows
  */
 struct be_async_event_link_state {
@@ -123,10 +119,10 @@ struct be_async_event_link_state {
 	u8 port_speed;
 	u8 port_fault;
 	u8 rsvd0[7];
-	struct be_async_event_trailer trailer;
+	u32 flags;
 } __packed;
 
-/* When the event code of an async trailer is GRP-5 and event_type is QOS_SPEED
+/* When the event code of compl->flags is GRP-5 and event_type is QOS_SPEED
  * the mcc_compl must be interpreted as follows
  */
 struct be_async_event_grp5_qos_link_speed {
@@ -134,10 +130,10 @@ struct be_async_event_grp5_qos_link_speed {
 	u8 rsvd[5];
 	u16 qos_link_speed;
 	u32 event_tag;
-	struct be_async_event_trailer trailer;
+	u32 flags;
 } __packed;
 
-/* When the event code of an async trailer is GRP5 and event type is
+/* When the event code of compl->flags is GRP5 and event type is
  * CoS-Priority, the mcc_compl must be interpreted as follows
  */
 struct be_async_event_grp5_cos_priority {
@@ -147,10 +143,10 @@ struct be_async_event_grp5_cos_priority {
 	u8 valid;
 	u8 rsvd0;
 	u8 event_tag;
-	struct be_async_event_trailer trailer;
+	u32 flags;
 } __packed;
 
-/* When the event code of an async trailer is GRP5 and event type is
+/* When the event code of compl->flags is GRP5 and event type is
  * PVID state, the mcc_compl must be interpreted as follows
  */
 struct be_async_event_grp5_pvid_state {
@@ -159,7 +155,7 @@ struct be_async_event_grp5_pvid_state {
 	u16 tag;
 	u32 event_tag;
 	u32 rsvd1;
-	struct be_async_event_trailer trailer;
+	u32 flags;
 } __packed;
 
 /* async event indicating outer VLAN tag in QnQ */
@@ -169,7 +165,7 @@ struct be_async_event_qnq {
 	u16 vlan_tag;
 	u32 event_tag;
 	u8 rsvd1[4];
-	struct be_async_event_trailer trailer;
+	u32 flags;
 } __packed;
 
 struct be_mcc_mailbox {