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90 lines
3.3 KiB
90 lines
3.3 KiB
/* |
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* Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. |
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* Copyright (c) 2004 Infinicon Corporation. All rights reserved. |
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* Copyright (c) 2004 Intel Corporation. All rights reserved. |
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* Copyright (c) 2004 Topspin Corporation. All rights reserved. |
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* Copyright (c) 2004-2007 Voltaire Corporation. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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* |
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*/ |
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#ifndef __SMI_H_ |
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#define __SMI_H_ |
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#include <rdma/ib_smi.h> |
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enum smi_action { |
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IB_SMI_DISCARD, |
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IB_SMI_HANDLE |
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}; |
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enum smi_forward_action { |
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IB_SMI_LOCAL, /* SMP should be completed up the stack */ |
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IB_SMI_SEND, /* received DR SMP should be forwarded to the send queue */ |
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IB_SMI_FORWARD /* SMP should be forwarded (for switches only) */ |
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}; |
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enum smi_action smi_handle_dr_smp_recv(struct ib_smp *smp, bool is_switch, |
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int port_num, int phys_port_cnt); |
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int smi_get_fwd_port(struct ib_smp *smp); |
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extern enum smi_forward_action smi_check_forward_dr_smp(struct ib_smp *smp); |
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extern enum smi_action smi_handle_dr_smp_send(struct ib_smp *smp, |
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bool is_switch, int port_num); |
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/* |
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* Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM |
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* via process_mad |
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*/ |
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static inline enum smi_action smi_check_local_smp(struct ib_smp *smp, |
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struct ib_device *device) |
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{ |
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/* C14-9:3 -- We're at the end of the DR segment of path */ |
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/* C14-9:4 -- Hop Pointer = Hop Count + 1 -> give to SMA/SM */ |
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return ((device->ops.process_mad && |
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!ib_get_smp_direction(smp) && |
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(smp->hop_ptr == smp->hop_cnt + 1)) ? |
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IB_SMI_HANDLE : IB_SMI_DISCARD); |
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} |
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/* |
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* Return IB_SMI_HANDLE if the SMP should be handled by the local SMA/SM |
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* via process_mad |
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*/ |
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static inline enum smi_action smi_check_local_returning_smp(struct ib_smp *smp, |
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struct ib_device *device) |
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{ |
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/* C14-13:3 -- We're at the end of the DR segment of path */ |
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/* C14-13:4 -- Hop Pointer == 0 -> give to SM */ |
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return ((device->ops.process_mad && |
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ib_get_smp_direction(smp) && |
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!smp->hop_ptr) ? IB_SMI_HANDLE : IB_SMI_DISCARD); |
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} |
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#endif /* __SMI_H_ */
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