91 lines
3.3 KiB
C
91 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved.
|
|
* 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) 2004-2007 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
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#ifndef __SMI_H_
|
|
#define __SMI_H_
|
|
|
|
#include <rdma/ib_smi.h>
|
|
|
|
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, bool is_switch,
|
|
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,
|
|
bool is_switch, int port_num);
|
|
|
|
/*
|
|
* 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_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)) ?
|
|
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_ */
|