On Thu, Oct 14, 2010 at 02:43:30PM -0700, Roland Dreier wrote:
>
> void ib_ud_header_init(int payload_bytes,
> int lrh_present,
> int eth_present,
> int grh_present,
> int immediate_present,
> struct ib_ud_header *header)
> {
> memset(header, 0, sizeof *header);
>
> if (lrh_present) {
> u16 packet_length;
>
> header->lrh.link_version = 0;
> header->lrh.link_next_header =
> grh_present ? IB_LNH_IBA_GLOBAL : IB_LNH_IBA_LOCAL;
> packet_length = (IB_LRH_BYTES +
> IB_BTH_BYTES +
> IB_DETH_BYTES +
> grh_present ? IB_GRH_BYTES : 0 +
> payload_bytes +
> 4 + /* ICRC */
> 3) / 4; /* round up */
> header->lrh.packet_length = cpu_to_be16(packet_length);
> }
>
> if (grh_present) {
> header->grh.ip_version = 6;
> header->grh.payload_length =
> cpu_to_be16((IB_BTH_BYTES +
> IB_DETH_BYTES +
> payload_bytes +
> 4 + /* ICRC */
> 3) & ~3); /* round up */
> header->grh.next_header = 0x1b;
> }
>
> if (header->immediate_present)
> header->bth.opcode =
> IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE;
> else
> header->bth.opcode = IB_OPCODE_UD_SEND_ONLY;
> header->bth.pad_count = (4 - payload_bytes) & 3;
> header->bth.transport_header_version = 0;
>
> header->lrh_present = lrh_present;
> header->eth_present = eth_present;
> header->grh_present = grh_present;
> header->immediate_present = immediate_present;
> }
>
> which I think is reasonably clean for now.
Looks good.
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
