Messages in this thread | | | Subject | Re: [PATCH] Gigabit Ethernet driver of Topcliff PCH | From | Eric Dumazet <> | Date | Fri, 03 Sep 2010 15:43:36 +0200 |
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Le vendredi 03 septembre 2010 à 22:32 +0900, Masayuki Ohtake a écrit : > Hi Eric and Stephen > > Thank you for your suggestion. > > I tried modification of "dev->hard_header_len". > However, there was no changed to a format of SKB received by kernel. > [Header:14octet] + [payload] > > So, I can not a single memcpy.
Hmm, maybe you did this at the wrong place ?
Take a look at other drivers how they do this
(network stack default hard_header_len to 14, in net/ethernet/eth.c, function ether_setup())
find drivers/net | xargs grep -n hard_header_len
Example in drivers/net/wan/hdlc.c
static void hdlc_setup_dev(struct net_device *dev) { /* Re-init all variables changed by HDLC protocol drivers, * including ether_setup() called from hdlc_raw_eth.c. */ dev->flags = IFF_POINTOPOINT | IFF_NOARP; dev->priv_flags = IFF_WAN_HDLC; dev->mtu = HDLC_MAX_MTU; dev->type = ARPHRD_RAWHDLC; dev->hard_header_len = 16; dev->addr_len = 0; dev->header_ops = &hdlc_null_ops; }
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