From ef9e6d4c6c403bab8ab7d02e63ef97cd6831e6a2 Mon Sep 17 00:00:00 2001
From: Kip Macy <kmacy@FreeBSD.org>
Date: Mon, 31 Mar 2008 21:02:27 +0000
Subject: [PATCH] reduce the size of the jumbo ring on i386 and disable pcpu
 cluster caching

---
 sys/dev/cxgb/cxgb_adapter.h     | 5 +++++
 sys/dev/cxgb/sys/cxgb_support.c | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/sys/dev/cxgb/cxgb_adapter.h b/sys/dev/cxgb/cxgb_adapter.h
index 2cb7b931dcd..9bf2f4c7e17 100644
--- a/sys/dev/cxgb/cxgb_adapter.h
+++ b/sys/dev/cxgb/cxgb_adapter.h
@@ -152,7 +152,12 @@ enum {				/* adapter flags */
 };
 
 #define FL_Q_SIZE	4096
+
+#ifdef __i386__
+#define JUMBO_Q_SIZE	256
+#else
 #define JUMBO_Q_SIZE	1024
+#endif
 #define RSPQ_Q_SIZE	1024
 #define TX_ETH_Q_SIZE	1024
 
diff --git a/sys/dev/cxgb/sys/cxgb_support.c b/sys/dev/cxgb/sys/cxgb_support.c
index e911dfcbdac..acab2baa356 100644
--- a/sys/dev/cxgb/sys/cxgb_support.c
+++ b/sys/dev/cxgb/sys/cxgb_support.c
@@ -53,7 +53,12 @@ __FBSDID("$FreeBSD$");
 #endif
 
 extern int cxgb_use_16k_clusters;
+
+#ifdef _i386__
+int cxgb_pcpu_cache_enable = 0;
+#else
 int cxgb_pcpu_cache_enable = 1;
+#endif
 
 struct buf_stack {
 	caddr_t            *bs_stack;