qlge: Increase MAC addr hw sem granularity.

Instead of taking/giving the semaphore repeatedly when iterating over
several adderesses, we have the caller hold it until all are done.  This
reduces PCI bus chatter and possible waits.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/qlge/qlge_dbg.c b/drivers/net/qlge/qlge_dbg.c
index 379b895ed6e6..40a70c36f5ae 100644
--- a/drivers/net/qlge/qlge_dbg.c
+++ b/drivers/net/qlge/qlge_dbg.c
@@ -83,6 +83,10 @@ static void ql_dump_cam_entries(struct ql_adapter *qdev)
 {
         int i;
         u32 value[3];
+
+        i = ql_sem_spinlock(qdev, SEM_MAC_ADDR_MASK);
+        if (i)
+                return;
         for (i = 0; i < 4; i++) {
                 if (ql_get_mac_addr_reg(qdev, MAC_ADDR_TYPE_CAM_MAC, i, value)) {
                         printk(KERN_ERR PFX
@@ -111,12 +115,16 @@ static void ql_dump_cam_entries(struct ql_adapter *qdev)
                                        qdev->ndev->name, i, value[1], value[0]);
                 }
         }
+        ql_sem_unlock(qdev, SEM_MAC_ADDR_MASK);
 }
 
 void ql_dump_routing_entries(struct ql_adapter *qdev)
 {
         int i;
         u32 value;
+        i = ql_sem_spinlock(qdev, SEM_RT_IDX_MASK);
+        if (i)
+                return;
         for (i = 0; i < 16; i++) {
                 value = 0;
                 if (ql_get_routing_reg(qdev, i, &value)) {
@@ -131,6 +139,7 @@ void ql_dump_routing_entries(struct ql_adapter *qdev)
                                        qdev->ndev->name, i, value);
                 }
         }
+        ql_sem_unlock(qdev, SEM_RT_IDX_MASK);
 }
 
 void ql_dump_regs(struct ql_adapter *qdev)