2 files changed, 6 insertions, 9 deletions

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 7c4c0fbf0abd..49e53e4c1ebe 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -156,15 +156,14 @@ static void nes_nic_tune_timer(struct nes_device *nesdev)
 
         spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
 
-        if (shared_timer->cq_count_old < cq_count) {
-                if (cq_count > shared_timer->threshold_low)
-                        shared_timer->cq_direction_downward=0;
-        }
-        if (shared_timer->cq_count_old >= cq_count)
+        if (shared_timer->cq_count_old <= cq_count)
+                shared_timer->cq_direction_downward = 0;
+        else
                 shared_timer->cq_direction_downward++;
         shared_timer->cq_count_old = cq_count;
         if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) {
-                if (cq_count <= shared_timer->threshold_low) {
+                if (cq_count <= shared_timer->threshold_low &&
+                    shared_timer->threshold_low > 4) {
                         shared_timer->threshold_low = shared_timer->threshold_low/2;
                         shared_timer->cq_direction_downward=0;
                         nesdev->currcq_count = 0;
@@ -1728,7 +1727,6 @@ int nes_napi_isr(struct nes_device *nesdev)
                         nesdev->int_req &= ~NES_INT_TIMER;
                         nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
                         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-                        nesadapter->tune_timer.timer_in_use_old = 0;
                 }
                 nesdev->deepcq_count = 0;
                 return 1;
@@ -1867,7 +1865,6 @@ void nes_dpc(unsigned long param)
                                         nesdev->int_req &= ~NES_INT_TIMER;
                                         nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
                                         nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
-                                        nesdev->nesadapter->tune_timer.timer_in_use_old = 0;
                                 } else {
                                         nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff|(~nesdev->int_req));
                                 }
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 1e10df550c9e..b7e2844f096b 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -962,7 +962,7 @@ struct nes_arp_entry {
 #define DEFAULT_JUMBO_NES_QL_LOW    12
 #define DEFAULT_JUMBO_NES_QL_TARGET 40
 #define DEFAULT_JUMBO_NES_QL_HIGH   128
-#define NES_NIC_CQ_DOWNWARD_TREND   8
+#define NES_NIC_CQ_DOWNWARD_TREND   16
 
 struct nes_hw_tune_timer {
     //u16 cq_count;