[infiniband] Profile post work queue entry operations

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/net/infiniband.c

 #include <ipxe/netdevice.h>
 #include <ipxe/iobuf.h>
 #include <ipxe/process.h>
+#include <ipxe/profile.h>
 #include <ipxe/infiniband.h>
 #include <ipxe/ib_mi.h>
 #include <ipxe/ib_sma.h>
 /** List of open Infiniband devices, in reverse order of opening */
 static struct list_head open_ib_devices = LIST_HEAD_INIT ( open_ib_devices );
 
+/** Post send work queue entry profiler */
+static struct profiler ib_post_send_profiler __profiler =
+	{ .name = "ib.post_send" };
+
+/** Post receive work queue entry profiler */
+static struct profiler ib_post_recv_profiler __profiler =
+	{ .name = "ib.post_recv" };
+
 /* Disambiguate the various possible EINPROGRESSes */
 #define EINPROGRESS_INIT __einfo_error ( EINFO_EINPROGRESS_INIT )
 #define EINFO_EINPROGRESS_INIT __einfo_uniqify \
 	struct ib_address_vector dest_copy;
 	int rc;
 
+	/* Start profiling */
+	profile_start ( &ib_post_send_profiler );
+
 	/* Check queue fill level */
 	if ( qp->send.fill >= qp->send.num_wqes ) {
 		DBGC ( ibdev, "IBDEV %p QPN %#lx send queue full\n",
 		return rc;
 	}
 
+	/* Increase fill level */
 	qp->send.fill++;
+
+	/* Stop profiling */
+	profile_stop ( &ib_post_send_profiler );
+
 	return 0;
 }
 
 		   struct io_buffer *iobuf ) {
 	int rc;
 
+	/* Start profiling */
+	profile_start ( &ib_post_recv_profiler );
+
 	/* Check packet length */
 	if ( iob_tailroom ( iobuf ) < IB_MAX_PAYLOAD_SIZE ) {
 		DBGC ( ibdev, "IBDEV %p QPN %#lx wrong RX buffer size (%zd)\n",
 		return rc;
 	}
 
+	/* Increase fill level */
 	qp->recv.fill++;
+
+	/* Stop profiling */
+	profile_stop ( &ib_post_recv_profiler );
+
 	return 0;
 }