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| author | Alexandros C. Couloumbis <alex@ozo.com> | 2010-11-11 18:42:38 +0000 |
|---|---|---|
| committer | Alexandros C. Couloumbis <alex@ozo.com> | 2010-11-11 18:42:38 +0000 |
| commit | 631ff80daa79e2091c9e8410fcd6d836de5a0770 (patch) | |
| tree | 053773082f9b36c5a3e597036d3a695043370c63 /target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch | |
| parent | 6a9ea41bc62e377f6df5beaa8569af9bdcff16da (diff) | |
| download | mtk-20170518-631ff80daa79e2091c9e8410fcd6d836de5a0770.zip mtk-20170518-631ff80daa79e2091c9e8410fcd6d836de5a0770.tar.gz mtk-20170518-631ff80daa79e2091c9e8410fcd6d836de5a0770.tar.bz2 | |
linux/ixp4xx: add preliminary 2.6.37 kernel support
SVN-Revision: 23964
Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch b/target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch new file mode 100644 index 0000000..9da18e7 --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.37/304-ixp4xx_eth_jumboframe.patch @@ -0,0 +1,80 @@ +--- a/drivers/net/arm/ixp4xx_eth.c ++++ b/drivers/net/arm/ixp4xx_eth.c +@@ -53,7 +53,7 @@ + + #define POOL_ALLOC_SIZE (sizeof(struct desc) * (RX_DESCS + TX_DESCS)) + #define REGS_SIZE 0x1000 +-#define MAX_MRU 1536 /* 0x600 */ ++#define MAX_MRU (14320 - ETH_HLEN - ETH_FCS_LEN) + #define RX_BUFF_SIZE ALIGN((NET_IP_ALIGN) + MAX_MRU, 4) + + #define NAPI_WEIGHT 16 +@@ -1075,6 +1075,32 @@ static void destroy_queues(struct port * + } + } + ++static int eth_do_change_mtu(struct net_device *dev, int mtu) ++{ ++ struct port *port; ++ struct msg msg; ++ /* adjust for ethernet headers */ ++ int framesize = mtu + ETH_HLEN + ETH_FCS_LEN; ++ ++ port = netdev_priv(dev); ++ ++ memset(&msg, 0, sizeof(msg)); ++ msg.cmd = NPE_SETMAXFRAMELENGTHS; ++ msg.eth_id = port->id; ++ ++ /* max rx/tx 64 byte blocks */ ++ msg.byte2 = ((framesize + 63) / 64) << 8; ++ msg.byte3 = ((framesize + 63) / 64) << 8; ++ ++ 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; ++ ++ return 0; ++} ++ + static int eth_open(struct net_device *dev) + { + struct port *port = netdev_priv(dev); +@@ -1126,6 +1152,8 @@ static int eth_open(struct net_device *d + if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE")) + return -EIO; + ++ eth_do_change_mtu(dev, dev->mtu); ++ + if ((err = request_queues(port)) != 0) + return err; + +@@ -1265,7 +1293,26 @@ static int eth_close(struct net_device * + return 0; + } + ++static int ixp_eth_change_mtu(struct net_device *dev, int mtu) ++{ ++ int ret; ++ ++ if (mtu > MAX_MRU) ++ return -EINVAL; ++ ++ if (dev->flags & IFF_UP) { ++ ret = eth_do_change_mtu(dev, mtu); ++ if (ret < 0) ++ return ret; ++ } ++ ++ dev->mtu = mtu; ++ ++ return 0; ++} ++ + static const struct net_device_ops ixp4xx_netdev_ops = { ++ .ndo_change_mtu = ixp_eth_change_mtu, + .ndo_open = eth_open, + .ndo_stop = eth_close, + .ndo_start_xmit = eth_xmit, |