| Message ID | 20231115091612.580685-2-LeoLiu-oc@zhaoxin.com (mailing list archive) |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | Parse the HEST PCIe AER and set to relevant registers | expand |
On Wed, Nov 15, 2023 at 10:16 AM LeoLiu-oc <LeoLiu-oc@zhaoxin.com> wrote: > > From: leoliu-oc <leoliu-oc@zhaoxin.com> > > The purpose of the function apei_hest_parse_aer() is used to parse and > extract register value from HEST PCIe AER structures. > > Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com> > --- > drivers/acpi/apei/hest.c | 77 ++++++++++++++++++++++++++++++++++++++-- > include/acpi/actbl1.h | 7 ++++ > include/acpi/apei.h | 8 +++++ > 3 files changed, 90 insertions(+), 2 deletions(-) > > diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c > index 6aef1ee5e1bd..7fb797fdc1b1 100644 > --- a/drivers/acpi/apei/hest.c > +++ b/drivers/acpi/apei/hest.c > @@ -22,6 +22,7 @@ > #include <linux/kdebug.h> > #include <linux/highmem.h> > #include <linux/io.h> > +#include <linux/pci.h> > #include <linux/platform_device.h> > #include <acpi/apei.h> > #include <acpi/ghes.h> > @@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr) > return len; > }; > > -typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); > +#ifdef CONFIG_ACPI_APEI > +static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p, > + struct pci_dev *dev) > +{ > + return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) && > + ACPI_HEST_BUS(p->bus) == dev->bus->number && > + p->device == PCI_SLOT(dev->devfn) && > + p->function == PCI_FUNC(dev->devfn); > +} > + > +static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr, > + struct pci_dev *dev) > +{ > + u16 hest_type = hest_hdr->type; > + u8 pcie_type = pci_pcie_type(dev); > + struct acpi_hest_aer_common *common; > + > + common = (struct acpi_hest_aer_common *)(hest_hdr + 1); > + > + switch (hest_type) { > + case ACPI_HEST_TYPE_AER_ROOT_PORT: > + if (pcie_type != PCI_EXP_TYPE_ROOT_PORT) > + return false; > + break; > + case ACPI_HEST_TYPE_AER_ENDPOINT: > + if (pcie_type != PCI_EXP_TYPE_ENDPOINT) > + return false; > + break; > + case ACPI_HEST_TYPE_AER_BRIDGE: > + if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE && > + pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE) > + return false; > + break; > + default: > + return false; > + break; > + } > + > + if (common->flags & ACPI_HEST_GLOBAL) > + return true; > + > + if (hest_match_pci_devfn(common, dev)) > + return true; > + > + return false; > +} > + > +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) > +{ > + struct hest_parse_aer_info *info = data; > + > + if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev)) > + return 0; > + > + switch (hest_hdr->type) { > + case ACPI_HEST_TYPE_AER_ROOT_PORT: > + info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr; > + return 1; > + break; > + case ACPI_HEST_TYPE_AER_ENDPOINT: > + info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr; > + return 1; > + break; > + case ACPI_HEST_TYPE_AER_BRIDGE: > + info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr; > + return 1; > + break; > + default: > + return 0; > + break; > + } > +} > +#endif > > -static int apei_hest_parse(apei_hest_func_t func, void *data) > +int apei_hest_parse(apei_hest_func_t func, void *data) > { > struct acpi_hest_header *hest_hdr; > int i, rc, len; > diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h > index a33375e055ad..90c27dc5325f 100644 > --- a/include/acpi/actbl1.h > +++ b/include/acpi/actbl1.h This is an ACPICA header and it cannot be modified just like this. The way to do that is to submit a pull request with the desired change to the upstream ACPICA project on GitHub and add a Link tag pointing to the upstream PR to the corresponding Linux patch. Then, the Linux patch can only be applied after the corresponding upstream PR has been merged. Thanks! > @@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status { > u32 error_severity; > }; > > +struct hest_parse_aer_info { > + struct pci_dev *pci_dev; > + struct acpi_hest_aer *hest_aer_endpoint; > + struct acpi_hest_aer_root *hest_aer_root_port; > + struct acpi_hest_aer_bridge *hest_aer_bridge; > +}; > + > /* Values for block_status flags above */ > > #define ACPI_HEST_UNCORRECTABLE (1) > diff --git a/include/acpi/apei.h b/include/acpi/apei.h > index dc60f7db5524..d12e6b6c4546 100644 > --- a/include/acpi/apei.h > +++ b/include/acpi/apei.h > @@ -33,10 +33,18 @@ void __init acpi_ghes_init(void); > static inline void acpi_ghes_init(void) { } > #endif > > +typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); > +int apei_hest_parse(apei_hest_func_t func, void *data); > + > #ifdef CONFIG_ACPI_APEI > void __init acpi_hest_init(void); > +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data); > #else > static inline void acpi_hest_init(void) { } > +static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) > +{ > + return 0; > +} > #endif > > int erst_write(const struct cper_record_header *record); > -- > 2.34.1 >
在 2023/12/7 0:35, Rafael J. Wysocki 写道: > On Wed, Nov 15, 2023 at 10:16 AM LeoLiu-oc <LeoLiu-oc@zhaoxin.com> wrote: >> >> From: leoliu-oc <leoliu-oc@zhaoxin.com> >> >> The purpose of the function apei_hest_parse_aer() is used to parse and >> extract register value from HEST PCIe AER structures. >> >> Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com> >> --- >> drivers/acpi/apei/hest.c | 77 ++++++++++++++++++++++++++++++++++++++-- >> include/acpi/actbl1.h | 7 ++++ >> include/acpi/apei.h | 8 +++++ >> 3 files changed, 90 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c >> index 6aef1ee5e1bd..7fb797fdc1b1 100644 >> --- a/drivers/acpi/apei/hest.c >> +++ b/drivers/acpi/apei/hest.c >> @@ -22,6 +22,7 @@ >> #include <linux/kdebug.h> >> #include <linux/highmem.h> >> #include <linux/io.h> >> +#include <linux/pci.h> >> #include <linux/platform_device.h> >> #include <acpi/apei.h> >> #include <acpi/ghes.h> >> @@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr) >> return len; >> }; >> >> -typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); >> +#ifdef CONFIG_ACPI_APEI >> +static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p, >> + struct pci_dev *dev) >> +{ >> + return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) && >> + ACPI_HEST_BUS(p->bus) == dev->bus->number && >> + p->device == PCI_SLOT(dev->devfn) && >> + p->function == PCI_FUNC(dev->devfn); >> +} >> + >> +static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr, >> + struct pci_dev *dev) >> +{ >> + u16 hest_type = hest_hdr->type; >> + u8 pcie_type = pci_pcie_type(dev); >> + struct acpi_hest_aer_common *common; >> + >> + common = (struct acpi_hest_aer_common *)(hest_hdr + 1); >> + >> + switch (hest_type) { >> + case ACPI_HEST_TYPE_AER_ROOT_PORT: >> + if (pcie_type != PCI_EXP_TYPE_ROOT_PORT) >> + return false; >> + break; >> + case ACPI_HEST_TYPE_AER_ENDPOINT: >> + if (pcie_type != PCI_EXP_TYPE_ENDPOINT) >> + return false; >> + break; >> + case ACPI_HEST_TYPE_AER_BRIDGE: >> + if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE && >> + pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE) >> + return false; >> + break; >> + default: >> + return false; >> + break; >> + } >> + >> + if (common->flags & ACPI_HEST_GLOBAL) >> + return true; >> + >> + if (hest_match_pci_devfn(common, dev)) >> + return true; >> + >> + return false; >> +} >> + >> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) >> +{ >> + struct hest_parse_aer_info *info = data; >> + >> + if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev)) >> + return 0; >> + >> + switch (hest_hdr->type) { >> + case ACPI_HEST_TYPE_AER_ROOT_PORT: >> + info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr; >> + return 1; >> + break; >> + case ACPI_HEST_TYPE_AER_ENDPOINT: >> + info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr; >> + return 1; >> + break; >> + case ACPI_HEST_TYPE_AER_BRIDGE: >> + info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr; >> + return 1; >> + break; >> + default: >> + return 0; >> + break; >> + } >> +} >> +#endif >> >> -static int apei_hest_parse(apei_hest_func_t func, void *data) >> +int apei_hest_parse(apei_hest_func_t func, void *data) >> { >> struct acpi_hest_header *hest_hdr; >> int i, rc, len; >> diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h >> index a33375e055ad..90c27dc5325f 100644 >> --- a/include/acpi/actbl1.h >> +++ b/include/acpi/actbl1.h > > This is an ACPICA header and it cannot be modified just like this. > > The way to do that is to submit a pull request with the desired change > to the upstream ACPICA project on GitHub and add a Link tag pointing > to the upstream PR to the corresponding Linux patch. Then, the Linux > patch can only be applied after the corresponding upstream PR has been > merged. > > Thanks! > the data structure "hest_parse_aer_info" is added to file actbl1.h, it is not necessary to put this data structure in file actbl1.h. In the next version, I will move this data structure to another file. Yours sincerely, Leoliu-oc >> @@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status { >> u32 error_severity; >> }; >> >> +struct hest_parse_aer_info { >> + struct pci_dev *pci_dev; >> + struct acpi_hest_aer *hest_aer_endpoint; >> + struct acpi_hest_aer_root *hest_aer_root_port; >> + struct acpi_hest_aer_bridge *hest_aer_bridge; >> +}; >> + >> /* Values for block_status flags above */ >> >> #define ACPI_HEST_UNCORRECTABLE (1) >> diff --git a/include/acpi/apei.h b/include/acpi/apei.h >> index dc60f7db5524..d12e6b6c4546 100644 >> --- a/include/acpi/apei.h >> +++ b/include/acpi/apei.h >> @@ -33,10 +33,18 @@ void __init acpi_ghes_init(void); >> static inline void acpi_ghes_init(void) { } >> #endif >> >> +typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); >> +int apei_hest_parse(apei_hest_func_t func, void *data); >> + >> #ifdef CONFIG_ACPI_APEI >> void __init acpi_hest_init(void); >> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data); >> #else >> static inline void acpi_hest_init(void) { } >> +static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) >> +{ >> + return 0; >> +} >> #endif >> >> int erst_write(const struct cper_record_header *record); >> -- >> 2.34.1 >>
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c index 6aef1ee5e1bd..7fb797fdc1b1 100644 --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -22,6 +22,7 @@ #include <linux/kdebug.h> #include <linux/highmem.h> #include <linux/io.h> +#include <linux/pci.h> #include <linux/platform_device.h> #include <acpi/apei.h> #include <acpi/ghes.h> @@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr) return len; }; -typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); +#ifdef CONFIG_ACPI_APEI +static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p, + struct pci_dev *dev) +{ + return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) && + ACPI_HEST_BUS(p->bus) == dev->bus->number && + p->device == PCI_SLOT(dev->devfn) && + p->function == PCI_FUNC(dev->devfn); +} + +static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr, + struct pci_dev *dev) +{ + u16 hest_type = hest_hdr->type; + u8 pcie_type = pci_pcie_type(dev); + struct acpi_hest_aer_common *common; + + common = (struct acpi_hest_aer_common *)(hest_hdr + 1); + + switch (hest_type) { + case ACPI_HEST_TYPE_AER_ROOT_PORT: + if (pcie_type != PCI_EXP_TYPE_ROOT_PORT) + return false; + break; + case ACPI_HEST_TYPE_AER_ENDPOINT: + if (pcie_type != PCI_EXP_TYPE_ENDPOINT) + return false; + break; + case ACPI_HEST_TYPE_AER_BRIDGE: + if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE && + pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE) + return false; + break; + default: + return false; + break; + } + + if (common->flags & ACPI_HEST_GLOBAL) + return true; + + if (hest_match_pci_devfn(common, dev)) + return true; + + return false; +} + +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) +{ + struct hest_parse_aer_info *info = data; + + if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev)) + return 0; + + switch (hest_hdr->type) { + case ACPI_HEST_TYPE_AER_ROOT_PORT: + info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr; + return 1; + break; + case ACPI_HEST_TYPE_AER_ENDPOINT: + info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr; + return 1; + break; + case ACPI_HEST_TYPE_AER_BRIDGE: + info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr; + return 1; + break; + default: + return 0; + break; + } +} +#endif -static int apei_hest_parse(apei_hest_func_t func, void *data) +int apei_hest_parse(apei_hest_func_t func, void *data) { struct acpi_hest_header *hest_hdr; int i, rc, len; diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index a33375e055ad..90c27dc5325f 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status { u32 error_severity; }; +struct hest_parse_aer_info { + struct pci_dev *pci_dev; + struct acpi_hest_aer *hest_aer_endpoint; + struct acpi_hest_aer_root *hest_aer_root_port; + struct acpi_hest_aer_bridge *hest_aer_bridge; +}; + /* Values for block_status flags above */ #define ACPI_HEST_UNCORRECTABLE (1) diff --git a/include/acpi/apei.h b/include/acpi/apei.h index dc60f7db5524..d12e6b6c4546 100644 --- a/include/acpi/apei.h +++ b/include/acpi/apei.h @@ -33,10 +33,18 @@ void __init acpi_ghes_init(void); static inline void acpi_ghes_init(void) { } #endif +typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data); +int apei_hest_parse(apei_hest_func_t func, void *data); + #ifdef CONFIG_ACPI_APEI void __init acpi_hest_init(void); +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data); #else static inline void acpi_hest_init(void) { } +static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data) +{ + return 0; +} #endif int erst_write(const struct cper_record_header *record);