forked from Minki/linux
243d9f436f
Add ability to fault packets on transmit by opcode. Dropping by packet can be achieved by setting the mask to 0. In order to drop non-verbs traffic we set PbcInsertHrc to NONE (0x2). The packet will still be delivered to the receiving node but a KHdrHCRCErr (KDETH packet with a bad HCRC) will be triggered and the packet will not be delivered to the correct context. In order to drop regular verbs traffic we set the PbcTestEbp flag. The packet will still be delivered to the receiving node but a 'late ebp error' will be triggered and will be dropped. A global toggle (/sys/kernel/debug/hfi1/hfi1_X/fault_suppress_err) has been added to suppress the error messages on the receive node when a packet was faulted on the sending node. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
#ifndef _HFI1_DEBUGFS_H
|
|
#define _HFI1_DEBUGFS_H
|
|
/*
|
|
* Copyright(c) 2015, 2016 Intel Corporation.
|
|
*
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
|
* redistributing this file, you may do so under either license.
|
|
*
|
|
* GPL LICENSE SUMMARY
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* 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.
|
|
* - Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
struct hfi1_ibdev;
|
|
#ifdef CONFIG_DEBUG_FS
|
|
void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd);
|
|
void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd);
|
|
void hfi1_dbg_init(void);
|
|
void hfi1_dbg_exit(void);
|
|
|
|
#ifdef CONFIG_FAULT_INJECTION
|
|
#include <linux/fault-inject.h>
|
|
struct fault_opcode {
|
|
struct fault_attr attr;
|
|
struct dentry *dir;
|
|
bool fault_by_opcode;
|
|
u64 n_rxfaults[256];
|
|
u64 n_txfaults[256];
|
|
u8 opcode;
|
|
u8 mask;
|
|
};
|
|
|
|
struct fault_packet {
|
|
struct fault_attr attr;
|
|
struct dentry *dir;
|
|
bool fault_by_packet;
|
|
u64 n_faults;
|
|
};
|
|
|
|
bool hfi1_dbg_fault_opcode(struct rvt_qp *qp, u32 opcode, bool rx);
|
|
bool hfi1_dbg_fault_packet(struct hfi1_packet *packet);
|
|
bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd);
|
|
#else
|
|
static inline bool hfi1_dbg_fault_packet(struct hfi1_packet *packet)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool hfi1_dbg_fault_opcode(struct rvt_qp *qp,
|
|
u32 opcode, bool rx)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#else
|
|
static inline void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
|
|
{
|
|
}
|
|
|
|
static inline void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd)
|
|
{
|
|
}
|
|
|
|
static inline void hfi1_dbg_init(void)
|
|
{
|
|
}
|
|
|
|
static inline void hfi1_dbg_exit(void)
|
|
{
|
|
}
|
|
|
|
static inline bool hfi1_dbg_fault_packet(struct hfi1_packet *packet)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool hfi1_dbg_fault_opcode(struct rvt_qp *qp,
|
|
u32 opcode, bool rx)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool hfi1_dbg_fault_suppress_err(struct hfi1_ibdev *ibd)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _HFI1_DEBUGFS_H */
|