---

yaml --- r: 134667 b: refs/heads/master c: 32344a3 h: refs/heads/master i: 134665: 7d92d60 134663: b507b6d v: v3
git-mirror · Feb 25, 2009 · 498357d · 498357d
1 parent b4ecab5
commit 498357d
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Showing 3 changed files with 10 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c7e4358ae8e49f85a4d528366046da26b36a712f
+refs/heads/master: 32344a394029baeca5bcc9fa839694b23a82cc64
diff --git a/trunk/drivers/net/ixgbe/ixgbe.h b/trunk/drivers/net/ixgbe/ixgbe.h
@@ -71,6 +71,7 @@
 #define IXGBE_RXBUFFER_128   128    /* Used for packet split */
 #define IXGBE_RXBUFFER_256   256    /* Used for packet split */
 #define IXGBE_RXBUFFER_2048  2048
+#define IXGBE_MAX_RXBUFFER   16384  /* largest size for a single descriptor */
 
 #define IXGBE_RX_HDR_SIZE IXGBE_RXBUFFER_256
 

diff --git a/trunk/drivers/net/ixgbe/ixgbe_main.c b/trunk/drivers/net/ixgbe/ixgbe_main.c
@@ -1550,7 +1550,14 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
 	srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK;
 
 	if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) {
-		srrctl |= IXGBE_RXBUFFER_2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
+		u16 bufsz = IXGBE_RXBUFFER_2048;
+		/* grow the amount we can receive on large page machines */
+		if (bufsz < (PAGE_SIZE / 2))
+			bufsz = (PAGE_SIZE / 2);
+		/* cap the bufsz at our largest descriptor size */
+		bufsz = min((u16)IXGBE_MAX_RXBUFFER, bufsz);
+
+		srrctl |= bufsz >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
 		srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
 		srrctl |= ((IXGBE_RX_HDR_SIZE <<
 		            IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &