It is true that on the send path you can send any sort of packet. The user of the QP is required to build the MAC header so he could potentially build any other sort of header instead. AFAIK the NIC will wrap the post_sent data in an Ethernet type II frame which includes the tailing CRC.
But on the receive path this QP assume an MAC header. The qp attach GID value gets the multicast MAC destination address to catch the correct ingress packets. Bottom line is that I think RAW_ETH is a good name. On the other hand, I never fully understand what does RAW_ETY stand for? Maybe we should change it instead to better represent what it does. PS: I agree with you that all ibverbs enums should start with a standard, in this case using IBV_QPT_xxxx. _________________ Alex Rosenbaum -----Original Message----- From: ewg-boun...@lists.openfabrics.org [mailto:ewg-boun...@lists.openfabrics.org] On Behalf Of Moni Shoua Sent: Tuesday, June 22, 2010 11:35 AM To: Aleksey Senin; Walukiewicz, Miroslaw; Liran Liss; EliCohen Cc: ewg Subject: [ewg] New name for IBV_QPT_RAW_ETH Hi, In yesterday's EWG meeting we agreed that a better name is required instead of IBV_QPT_RAW_ETH. The qp type IBV_QPT_RAW_ETH was introduced lately and it represents a QP that doesn't add headers to the data in post_send operation. Today, this QP is used in applications that want to send Ethernet frames to the wire. However, it is not limited to the Ethernet protocol and one can write an application that sends any type of packet (am I wrong here?) Therefore I can think of the following names IBV_QPT_FRAME IBV_QPT_PACKET IBV_QPT_NOHDR Also, the prefix IBV may be misleading (it's not an IB QP) so this it can be replaced in the above suggestions to RAW. I don't tend to agree to this because I think that all QP types should start with the same prefix. You are all welcome to state your opinion so please do so. thanks Moni S. _______________________________________________ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg _______________________________________________ ewg mailing list ewg@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
