Ben Greear wrote:
Hello!I got my chelsio NICs in a machine running 2.6.15 + my hacks today and started playing with it... I noticed one immediate problem with pktgen, and fixed my pktgen to respect the hard-header-len that the chelsio driver reports. My pktgen doesn't track mainline very well, but the change is to do something like this in the fill_packet method: int rsrv = (odev->hard_header_len + 16) & ~0xF; .... skb = alloc_skb(info->cur_pkt_size + 64 + rsrv, GFP_ATOMIC); .... /* Make some extra space, align on 16-byte boundary * (helps Chelsio) Used to be just a default 16 for * everyone... */ skb_reserve(skb, rsrv); I do notice something strange though: If I use the pktgens multi-pkt feature, the duplicate packets are never actually sent!!!
Well, to answer myself: I found the problem. Pktgen's multi-skb trick only works if the device makes no change to the skb. But, the cxgb driver pushes a header on the front of the skb... So, you just can't use the multi-skb pktgen option with this driver... Ben -- Ben Greear <[EMAIL PROTECTED]> Candela Technologies Inc http://www.candelatech.com - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
