ixp4xx add jumboframe fixes by Ted Hess (#5746)

[oweals/openwrt.git] / target / linux / ixp4xx / patches-2.6.30 / 304-ixp4xx_eth_jumboframe.patch

diff --git a/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
index 21e8f45e5009ef86e423223f2aa3ee1d6f563f6d..9d13cbc510dcab0eb917a7613f44acd7f1334833 100644 (file)
--- a/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
+++ b/target/linux/ixp4xx/patches-2.6.30/304-ixp4xx_eth_jumboframe.patch
@@ -5,11 +5,11 @@
  #define POOL_ALLOC_SIZE               (sizeof(struct desc) * (RX_DESCS + TX_DESCS))
  #define REGS_SIZE             0x1000
 -#define MAX_MRU                       1536 /* 0x600 */
-+#define MAX_MRU                       16384
++#define MAX_MRU                       (16320 - ETH_HLEN - ETH_FCS_LEN)
  #define RX_BUFF_SIZE          ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
  
  #define NAPI_WEIGHT           16
-@@ -1066,6 +1066,30 @@ static void destroy_queues(struct port *
+@@ -943,6 +943,32 @@
        }
  }
  
@@ -17,6 +17,8 @@
 +{
 +      struct port *port;
 +      struct msg msg;
++      /* adjust for ethernet headers */
++      int framesize = mtu + ETH_HLEN + ETH_FCS_LEN;
 +
 +      port = netdev_priv(dev);
 +
@@ -25,11 +27,11 @@
 +      msg.eth_id = port->id;
 +
 +      /* max rx/tx 64 byte blocks */
-+      msg.byte2 = ((mtu + 63) / 64) << 8;
-+      msg.byte3 = ((mtu + 63) / 64) << 8;
++      msg.byte2 = ((framesize + 63) / 64) << 8;
++      msg.byte3 = ((framesize + 63) / 64) << 8;
 +
-+      msg.byte4 = msg.byte6 = mtu >> 8;
-+      msg.byte5 = msg.byte7 = mtu & 0xff;
++      msg.byte4 = msg.byte6 = framesize >> 8;
++      msg.byte5 = msg.byte7 = framesize & 0xff;
 +
 +      if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAX_FRAME_LENGTH"))
 +              return -EIO;
@@ -40,7 +42,7 @@
  static int eth_open(struct net_device *dev)
  {
        struct port *port = netdev_priv(dev);
-@@ -1117,6 +1141,8 @@ static int eth_open(struct net_device *d
+@@ -994,6 +1020,8 @@
        if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE"))
                return -EIO;
  
@@ -49,7 +51,7 @@
        if ((err = request_queues(port)) != 0)
                return err;
  
-@@ -1256,7 +1282,26 @@ static int eth_close(struct net_device *
+@@ -1134,7 +1162,26 @@
        return 0;
  }