855e49f3b0
APEI allows platform to report different kinds of errors to OS in several ways. We've found that Supermicro X10/X11 motherboards report PCIe errors appearing on hot-unplug via this interface using NMI. Without respective driver it ended up in kernel panic without any additional information. This driver introduces support for the APEI Generic Hardware Error Source reporting via NMI, SCI or polling. It decodes the reported errors and either pass them to pci(4) for processing or just logs otherwise. Errors marked as fatal still end up in kernel panic, but some more informative. When somebody get to native PCIe AER support implementation both of the reporting mechanisms should get common error recovery code. Since in our case errors happen when the device is already gone, there is nothing to recover, so the code just clears the error statuses, practically ignoring the otherwise destructive NMIs in nicer way. MFC after: 2 weeks Relnotes: yes Sponsored by: iXsystems, Inc.
92 lines
3.2 KiB
C
92 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002 Mitsuru IWASAKI
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/******************************************************************************
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*
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* Name: acpica_machdep.h - arch-specific defines, etc.
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* $Revision$
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*
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*****************************************************************************/
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#ifndef __ACPICA_MACHDEP_H__
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#define __ACPICA_MACHDEP_H__
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#ifdef _KERNEL
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/*
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* Calling conventions:
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*
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* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
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* ACPI_EXTERNAL_XFACE - External ACPI interfaces
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* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
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* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
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*/
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#define ACPI_SYSTEM_XFACE
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#define ACPI_EXTERNAL_XFACE
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#define ACPI_INTERNAL_XFACE
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#define ACPI_INTERNAL_VAR_XFACE
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/* Asm macros */
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#define ACPI_ASM_MACROS
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#define BREAKPOINT3
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#define ACPI_DISABLE_IRQS() disable_intr()
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#define ACPI_ENABLE_IRQS() enable_intr()
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#define ACPI_FLUSH_CPU_CACHE() wbinvd()
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/* Section 5.2.10.1: global lock acquire/release functions */
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int acpi_acquire_global_lock(volatile uint32_t *);
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int acpi_release_global_lock(volatile uint32_t *);
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#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) do { \
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(Acq) = acpi_acquire_global_lock(&((GLptr)->GlobalLock)); \
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} while (0)
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#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) do { \
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(Acq) = acpi_release_global_lock(&((GLptr)->GlobalLock)); \
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} while (0)
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enum intr_trigger;
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enum intr_polarity;
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void acpi_SetDefaultIntrModel(int model);
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void acpi_cpu_c1(void);
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void acpi_cpu_idle_mwait(uint32_t mwait_hint);
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void *acpi_map_table(vm_paddr_t pa, const char *sig);
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void acpi_unmap_table(void *table);
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vm_paddr_t acpi_find_table(const char *sig);
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void madt_parse_interrupt_values(void *entry,
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enum intr_trigger *trig, enum intr_polarity *pol);
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extern int madt_found_sci_override;
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extern int (*apei_nmi)(void);
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#endif /* _KERNEL */
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#endif /* __ACPICA_MACHDEP_H__ */
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