nvdimm: Provide nvdimm location information
Provide the acpi handle path as the location string for the nvdimm children of the nvdimm_root device. Reviewed by: kib Approved by: jhb (mentor) MFC after: 1 week Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D20528
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=348757
@ -560,6 +560,24 @@ nvdimm_root_write_ivar(device_t dev, device_t child, int index,
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return (0);
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}
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static int
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nvdimm_root_child_location_str(device_t dev, device_t child, char *buf,
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size_t buflen)
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{
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ACPI_HANDLE handle;
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int res;
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handle = nvdimm_root_get_acpi_handle(child);
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if (handle != NULL)
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res = snprintf(buf, buflen, "handle=%s", acpi_name(handle));
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else
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res = snprintf(buf, buflen, "unknown");
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if (res >= buflen)
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return (EOVERFLOW);
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return (0);
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}
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static device_method_t nvdimm_methods[] = {
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DEVMETHOD(device_probe, nvdimm_probe),
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DEVMETHOD(device_attach, nvdimm_attach),
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@ -582,6 +600,7 @@ static device_method_t nvdimm_root_methods[] = {
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DEVMETHOD(bus_add_child, bus_generic_add_child),
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DEVMETHOD(bus_read_ivar, nvdimm_root_read_ivar),
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DEVMETHOD(bus_write_ivar, nvdimm_root_write_ivar),
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DEVMETHOD(bus_child_location_str, nvdimm_root_child_location_str),
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DEVMETHOD_END
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};
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