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path: root/packages/ixp425-eth/ixp400-eth-1.5.1/netdev_max_backlog.patch
blob: 6891b6b4a9872e53f6c35d4aea9e70bfd887a397 (plain)
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--- ixp400_eth/ixp400_eth.c~	2006-01-09 01:03:11.000000000 +1030
+++ ixp400_eth/ixp400_eth.c	2006-01-09 01:05:27.000000000 +1030
@@ -139,12 +139,12 @@
  * skbuf to push into the linux stack, and avoid the performance degradations 
  * during overflow.
  */
-static int netdev_max_backlog = 290;
+static int ixp400_netdev_max_backlog = 290;
 
 static int datapath_poll = 1;     /* default : rx/tx polling, not interrupt driven*/
 
-MODULE_PARM(netdev_max_backlog, "i");
-MODULE_PARM_DESC(netdev_max_backlog, "Should be set to the value of /proc/sys/net/core/netdev_max_backlog (perf affecting)");
+MODULE_PARM(ixp400_netdev_max_backlog, "i");
+MODULE_PARM_DESC(ixp400_netdev_max_backlog, "Should be set to the value of /proc/sys/net/core/netdev_max_backlog (perf affecting)");
 MODULE_PARM(datapath_poll, "i");
 MODULE_PARM_DESC(datapath_poll, "If non-zero, use polling method for datapath instead of interrupts");
 #endif /* CONFIG_IXP400_NAPI */
@@ -213,7 +213,7 @@
  * high traffic rates. To measure the maximum throughput between the
  * ports of the driver,
  * - Modify /proc/sys/net/core/netdev_max_backlog value in the kernel 
- * - Adjust netdev_max_backlog=n in the driver's command line
+ * - Adjust ixp400_netdev_max_backlog=n in the driver's command line
  * in order to get the best rates depending on the testing tool 
  * and the OS load.
  *
@@ -1997,7 +1997,7 @@
     /* check if the system accepts more traffic and
      * against chained mbufs 
      */
-    if ((qlevel < netdev_max_backlog)
+    if ((qlevel < ixp400_netdev_max_backlog)
         && (IX_OSAL_MBUF_NEXT_PKT_IN_CHAIN_PTR(mbuf) == NULL))
 #else
     /* check against chained mbufs
@@ -3776,13 +3776,13 @@
 #ifndef CONFIG_IXP400_NAPI
     /* set the softirq rx queue thresholds 
      * (These numbers are based on tuning experiments)
-     * maxbacklog =  (netdev_max_backlog * 10) / 63;
+     * maxbacklog =  (ixp400_netdev_max_backlog * 10) / 63;
     */
-    if (netdev_max_backlog == 0)
+    if (ixp400_netdev_max_backlog == 0)
     {
-	netdev_max_backlog = 290; /* system default */
+	ixp400_netdev_max_backlog = 290; /* system default */
     }
-    netdev_max_backlog /= BACKLOG_TUNE;
+    ixp400_netdev_max_backlog /= BACKLOG_TUNE;
 
     TRACE;
 #endif