---

yaml --- r: 66864 b: refs/heads/master c: 0d0d9c1 h: refs/heads/master v: v3
git-mirror · Oct 10, 2007 · 4483307 · 4483307
1 parent 46ae3f3
commit 4483307
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Showing 3 changed files with 22 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c6565331b7162a8348c70c37b4c33bedb6d4f02d
+refs/heads/master: 0d0d9c150c046cbd3e507adcfa2d78db82f1f452
diff --git a/trunk/drivers/net/fs_enet/fs_enet-main.c b/trunk/drivers/net/fs_enet/fs_enet-main.c
@@ -70,6 +70,14 @@ static void fs_set_multicast_list(struct net_device *dev)
 	(*fep->ops->set_multicast_list)(dev);
 }
 
+static void skb_align(struct sk_buff *skb, int align)
+{
+	int off = ((unsigned long)skb->data) & (align - 1);
+
+	if (off)
+		skb_reserve(skb, align - off);
+}
+
 /* NAPI receive function */
 static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
 {
@@ -159,9 +167,13 @@ static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
 					skb = skbn;
 					skbn = skbt;
 				}
-			} else
+			} else {
 				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
 
+				if (skbn)
+					skb_align(skbn, ENET_RX_ALIGN);
+			}
+
 			if (skbn != NULL) {
 				skb_put(skb, pkt_len);	/* Make room */
 				skb->protocol = eth_type_trans(skb, dev);
@@ -290,9 +302,13 @@ static int fs_enet_rx_non_napi(struct net_device *dev)
 					skb = skbn;
 					skbn = skbt;
 				}
-			} else
+			} else {
 				skbn = dev_alloc_skb(ENET_RX_FRSIZE);
 
+				if (skbn)
+					skb_align(skbn, ENET_RX_ALIGN);
+			}
+
 			if (skbn != NULL) {
 				skb_put(skb, pkt_len);	/* Make room */
 				skb->protocol = eth_type_trans(skb, dev);
@@ -502,6 +518,7 @@ void fs_init_bds(struct net_device *dev)
 			       dev->name);
 			break;
 		}
+		skb_align(skb, ENET_RX_ALIGN);
 		fep->rx_skbuff[i] = skb;
 		CBDW_BUFADDR(bdp,
 			dma_map_single(fep->dev, skb->data,

diff --git a/trunk/drivers/net/fs_enet/fs_enet.h b/trunk/drivers/net/fs_enet/fs_enet.h
@@ -82,7 +82,8 @@ struct phy_info {
 /* Must be a multiple of 32 (to cover both FEC & FCC) */
 #define PKT_MAXBLR_SIZE		((PKT_MAXBUF_SIZE + 31) & ~31)
 /* This is needed so that invalidate_xxx wont invalidate too much */
-#define ENET_RX_FRSIZE		L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
+#define ENET_RX_ALIGN  16
+#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
 
 struct fs_enet_mii_bus {
 	struct list_head list;