vxge: MSIX one shot mode

To reduce the possibility of losing an interrupt in the handler due to a
race between an interrupt processing and disable/enable of interrupts,
enable MSIX one shot.

Also, add support for adaptive interrupt coalesing

Signed-off-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: Masroor Vettuparambil <masroor.vettuparambil@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/vxge/vxge-config.h b/drivers/net/vxge/vxge-config.h
index e249e288d16..3c53aa732c9 100644
--- a/drivers/net/vxge/vxge-config.h
+++ b/drivers/net/vxge/vxge-config.h
@@ -682,6 +682,10 @@ struct __vxge_hw_virtualpath {
         u32                             vsport_number;
         u32                             max_kdfc_db;
         u32                             max_nofl_db;
+        u64                             tim_tti_cfg1_saved;
+        u64                             tim_tti_cfg3_saved;
+        u64                             tim_rti_cfg1_saved;
+        u64                             tim_rti_cfg3_saved;
 
         struct __vxge_hw_ring *____cacheline_aligned ringh;
         struct __vxge_hw_fifo *____cacheline_aligned fifoh;
@@ -921,6 +925,9 @@ struct __vxge_hw_ring {
         u32                                     doorbell_cnt;
         u32                                     total_db_cnt;
         u64                                     rxds_limit;
+        u32                                     rtimer;
+        u64                                     tim_rti_cfg1_saved;
+        u64                                     tim_rti_cfg3_saved;
 
         enum vxge_hw_status (*callback)(
                         struct __vxge_hw_ring *ringh,
@@ -1000,6 +1007,9 @@ struct __vxge_hw_fifo {
         u32                                     per_txdl_space;
         u32                                     vp_id;
         u32                                     tx_intr_num;
+        u32                                     rtimer;
+        u64                                     tim_tti_cfg1_saved;
+        u64                                     tim_tti_cfg3_saved;
 
         enum vxge_hw_status (*callback)(
                         struct __vxge_hw_fifo *fifo_handle,