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[infiniband] Centralise assumption of 2048-byte payloads

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IPoIB and the SMA have separate constants for the packet size to be
used to I/O buffer allocations.  Merge these into the single
IB_MAX_PAYLOAD_SIZE constant.

(Various other points in the Infiniband stack have hard-coded
assumptions of a 2048-byte payload; we don't currently support
variable MTUs.)
This commit is contained in:
Michael Brown
2009-07-17 22:50:33 +01:00
parent 7ba33f7826
commit 1f5c0239b4
8 changed files with 22 additions and 18 deletions
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7
src/net/infiniband.c
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@@ -345,6 +345,13 @@ int ib_post_recv ( struct ib_device *ibdev, struct ib_queue_pair *qp,
struct io_buffer *iobuf ) {
int rc;
/* Check packet length */
if ( iob_tailroom ( iobuf ) < IB_MAX_PAYLOAD_SIZE ) {
DBGC ( ibdev, "IBDEV %p QPN %#lx wrong RX buffer size (%zd)\n",
ibdev, qp->qpn, iob_tailroom ( iobuf ) );
return -EINVAL;
}
/* Check queue fill level */
if ( qp->recv.fill >= qp->recv.num_wqes ) {
DBGC ( ibdev, "IBDEV %p QPN %#lx receive queue full\n",