* Copyright (c) 2004 Infinicon Corporation. All rights reserved.
* Copyright (c) 2004 Intel Corporation. All rights reserved.
* Copyright (c) 2004 Topspin Corporation. All rights reserved.
- * Copyright (c) 2004 Voltaire Corporation. All rights reserved.
+ * Copyright (c) 2004-2007 Voltaire Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
- * $Id: smi.h 1389 2004-12-27 22:56:47Z roland $
*/
#ifndef __SMI_H_
#include <rdma/ib_smi.h>
-int smi_handle_dr_smp_recv(struct ib_smp *smp,
- u8 node_type,
- int port_num,
- int phys_port_cnt);
-extern int smi_check_forward_dr_smp(struct ib_smp *smp);
-extern int smi_handle_dr_smp_send(struct ib_smp *smp,
- u8 node_type,
- int port_num);
+enum smi_action {
+ IB_SMI_DISCARD,
+ IB_SMI_HANDLE
+};
+
+enum smi_forward_action {
+ IB_SMI_LOCAL, /* SMP should be completed up the stack */
+ IB_SMI_SEND, /* received DR SMP should be forwarded to the send queue */
+ IB_SMI_FORWARD /* SMP should be forwarded (for switches only) */
+};
+
+enum smi_action smi_handle_dr_smp_recv(struct ib_smp *smp, u8 node_type,
+ int port_num, int phys_port_cnt);
+int smi_get_fwd_port(struct ib_smp *smp);
+extern enum smi_forward_action smi_check_forward_dr_smp(struct ib_smp *smp);
+extern enum smi_action smi_handle_dr_smp_send(struct ib_smp *smp,
+ u8 node_type, int port_num);
/*
- * Return 1 if the SMP should be handled by the local SMA/SM via process_mad
+ * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
+ * via process_mad
*/
-static inline int smi_check_local_smp(struct ib_smp *smp,
- struct ib_device *device)
+static inline enum smi_action smi_check_local_smp(struct ib_smp *smp,
+ struct ib_device *device)
{
/* C14-9:3 -- We're at the end of the DR segment of path */
/* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */
return ((device->process_mad &&
!ib_get_smp_direction(smp) &&
- (smp->hop_ptr == smp->hop_cnt + 1)));
+ (smp->hop_ptr == smp->hop_cnt + 1)) ?
+ IB_SMI_HANDLE : IB_SMI_DISCARD);
+}
+
+/*
+ * Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM
+ * via process_mad
+ */
+static inline enum smi_action smi_check_local_returning_smp(struct ib_smp *smp,
+ struct ib_device *device)
+{
+ /* C14-13:3 -- We're at the end of the DR segment of path */
+ /* C14-13:4 -- Hop Pointer == 0 -> give to SM */
+ return ((device->process_mad &&
+ ib_get_smp_direction(smp) &&
+ !smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD);
}
#endif /* __SMI_H_ */