[PATCH 3/5] 2.6.13-rc5-mm1, add onboard devices discovery
This patch adds onboard devices and IPMI BMC discovery into DMI scan code. Drivers can use dmi_find_device() function to search for devices by type and name. Signed-off-by: Andrey Panin <[EMAIL PROTECTED]> arch/i386/kernel/dmi_scan.c | 102 ++-- include/linux/dmi.h | 34 +- 2 files changed, 121 insertions(+), 15 deletions(-) diff -urdpNX /usr/share/dontdiff linux-2.6.13-rc5-mm1.vanilla/arch/i386/kernel/dmi_scan.c linux-2.6.13-rc5-mm1/arch/i386/kernel/dmi_scan.c --- linux-2.6.13-rc5-mm1.vanilla/arch/i386/kernel/dmi_scan.c2005-08-09 14:39:13.0 +0400 +++ linux-2.6.13-rc5-mm1/arch/i386/kernel/dmi_scan.c2005-08-09 15:07:57.0 +0400 @@ -6,13 +6,6 @@ #include -struct dmi_header { - u8 type; - u8 length; - u16 handle; -}; - - static char * __init dmi_string(struct dmi_header *dm, u8 s) { u8 *bp = ((u8 *) dm) + dm->length; @@ -88,6 +81,7 @@ static int __init dmi_checksum(u8 *buf) } static char *dmi_ident[DMI_STRING_MAX]; +static LIST_HEAD(dmi_devices); /* * Save a DMI string @@ -106,6 +100,58 @@ static void __init dmi_save_ident(struct dmi_ident[slot] = p; } +static void __init dmi_save_devices(struct dmi_header *dm) +{ + int i, count = (dm->length - sizeof(struct dmi_header)) / 2; + struct dmi_device *dev; + + for (i = 0; i < count; i++) { + char *d = ((char *) dm) + (i * 2); + + /* Skip disabled device */ + if ((*d & 0x80) == 0) + continue; + + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR "dmi_save_devices: out of memory.\n"); + break; + } + + dev->type = *d++ & 0x7f; + dev->name = dmi_string(dm, *d); + dev->device_data = NULL; + + list_add(>list, _devices); + } +} + +static void __init dmi_save_ipmi_device(struct dmi_header *dm) +{ + struct dmi_device *dev; + void * data; + + data = alloc_bootmem(dm->length); + if (data == NULL) { + printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); + return; + } + + memcpy(data, dm, dm->length); + + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n"); + return; + } + + dev->type = DMI_DEV_TYPE_IPMI; + dev->name = "IPMI controller"; + dev->device_data = data; + + list_add(>list, _devices); +} + /* * Process a DMI table entry. Right now all we care about are the BIOS * and machine entries. For 2.5 we should pull the smbus controller info @@ -113,25 +159,28 @@ static void __init dmi_save_ident(struct */ static void __init dmi_decode(struct dmi_header *dm) { - u8 *data __attribute__((__unused__)) = (u8 *)dm; - switch(dm->type) { - case 0: + case 0: /* BIOS Information */ dmi_save_ident(dm, DMI_BIOS_VENDOR, 4); dmi_save_ident(dm, DMI_BIOS_VERSION, 5); dmi_save_ident(dm, DMI_BIOS_DATE, 8); break; - case 1: + case 1: /* System Information */ dmi_save_ident(dm, DMI_SYS_VENDOR, 4); dmi_save_ident(dm, DMI_PRODUCT_NAME, 5); dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6); dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7); break; - case 2: + case 2: /* Base Board Information */ dmi_save_ident(dm, DMI_BOARD_VENDOR, 4); dmi_save_ident(dm, DMI_BOARD_NAME, 5); dmi_save_ident(dm, DMI_BOARD_VERSION, 6); break; + case 10:/* Onboard Devices Information */ + dmi_save_devices(dm); + break; + case 38:/* IPMI Device Information */ + dmi_save_ipmi_device(dm); } } @@ -221,3 +270,32 @@ char *dmi_get_system_info(int field) return dmi_ident[field]; } EXPORT_SYMBOL(dmi_get_system_info); + +/** + * dmi_find_device - find onboard device by type/name + * @type: device type or %DMI_DEV_TYPE_ANY to match all device types + * @desc: device name string or %NULL to match all + * @from: previous device found in search, or %NULL for new search. + * + * Iterates through the list of known onboard devices. If a device is + * found with a matching @vendor and @device, a pointer to its device + * structure is returned. Otherwise, %NULL is returned. + * A new search is initiated by passing %NULL to the @from argument. + * If @from is not %NULL, searches continue from next device. + */ +struct dmi_device * dmi_find_device(int type, const char *name, + struct dmi_device *from) +{ +
[PATCH 3/5] 2.6.13-rc5-mm1, add onboard devices discovery
This patch adds onboard devices and IPMI BMC discovery into DMI scan code. Drivers can use dmi_find_device() function to search for devices by type and name. Signed-off-by: Andrey Panin [EMAIL PROTECTED] arch/i386/kernel/dmi_scan.c | 102 ++-- include/linux/dmi.h | 34 +- 2 files changed, 121 insertions(+), 15 deletions(-) diff -urdpNX /usr/share/dontdiff linux-2.6.13-rc5-mm1.vanilla/arch/i386/kernel/dmi_scan.c linux-2.6.13-rc5-mm1/arch/i386/kernel/dmi_scan.c --- linux-2.6.13-rc5-mm1.vanilla/arch/i386/kernel/dmi_scan.c2005-08-09 14:39:13.0 +0400 +++ linux-2.6.13-rc5-mm1/arch/i386/kernel/dmi_scan.c2005-08-09 15:07:57.0 +0400 @@ -6,13 +6,6 @@ #include linux/bootmem.h -struct dmi_header { - u8 type; - u8 length; - u16 handle; -}; - - static char * __init dmi_string(struct dmi_header *dm, u8 s) { u8 *bp = ((u8 *) dm) + dm-length; @@ -88,6 +81,7 @@ static int __init dmi_checksum(u8 *buf) } static char *dmi_ident[DMI_STRING_MAX]; +static LIST_HEAD(dmi_devices); /* * Save a DMI string @@ -106,6 +100,58 @@ static void __init dmi_save_ident(struct dmi_ident[slot] = p; } +static void __init dmi_save_devices(struct dmi_header *dm) +{ + int i, count = (dm-length - sizeof(struct dmi_header)) / 2; + struct dmi_device *dev; + + for (i = 0; i count; i++) { + char *d = ((char *) dm) + (i * 2); + + /* Skip disabled device */ + if ((*d 0x80) == 0) + continue; + + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR dmi_save_devices: out of memory.\n); + break; + } + + dev-type = *d++ 0x7f; + dev-name = dmi_string(dm, *d); + dev-device_data = NULL; + + list_add(dev-list, dmi_devices); + } +} + +static void __init dmi_save_ipmi_device(struct dmi_header *dm) +{ + struct dmi_device *dev; + void * data; + + data = alloc_bootmem(dm-length); + if (data == NULL) { + printk(KERN_ERR dmi_save_ipmi_device: out of memory.\n); + return; + } + + memcpy(data, dm, dm-length); + + dev = alloc_bootmem(sizeof(*dev)); + if (!dev) { + printk(KERN_ERR dmi_save_ipmi_device: out of memory.\n); + return; + } + + dev-type = DMI_DEV_TYPE_IPMI; + dev-name = IPMI controller; + dev-device_data = data; + + list_add(dev-list, dmi_devices); +} + /* * Process a DMI table entry. Right now all we care about are the BIOS * and machine entries. For 2.5 we should pull the smbus controller info @@ -113,25 +159,28 @@ static void __init dmi_save_ident(struct */ static void __init dmi_decode(struct dmi_header *dm) { - u8 *data __attribute__((__unused__)) = (u8 *)dm; - switch(dm-type) { - case 0: + case 0: /* BIOS Information */ dmi_save_ident(dm, DMI_BIOS_VENDOR, 4); dmi_save_ident(dm, DMI_BIOS_VERSION, 5); dmi_save_ident(dm, DMI_BIOS_DATE, 8); break; - case 1: + case 1: /* System Information */ dmi_save_ident(dm, DMI_SYS_VENDOR, 4); dmi_save_ident(dm, DMI_PRODUCT_NAME, 5); dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6); dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7); break; - case 2: + case 2: /* Base Board Information */ dmi_save_ident(dm, DMI_BOARD_VENDOR, 4); dmi_save_ident(dm, DMI_BOARD_NAME, 5); dmi_save_ident(dm, DMI_BOARD_VERSION, 6); break; + case 10:/* Onboard Devices Information */ + dmi_save_devices(dm); + break; + case 38:/* IPMI Device Information */ + dmi_save_ipmi_device(dm); } } @@ -221,3 +270,32 @@ char *dmi_get_system_info(int field) return dmi_ident[field]; } EXPORT_SYMBOL(dmi_get_system_info); + +/** + * dmi_find_device - find onboard device by type/name + * @type: device type or %DMI_DEV_TYPE_ANY to match all device types + * @desc: device name string or %NULL to match all + * @from: previous device found in search, or %NULL for new search. + * + * Iterates through the list of known onboard devices. If a device is + * found with a matching @vendor and @device, a pointer to its device + * structure is returned. Otherwise, %NULL is returned. + * A new search is initiated by passing %NULL to the @from argument. + * If @from is not %NULL, searches continue from next device. + */ +struct dmi_device * dmi_find_device(int type, const char *name, + struct dmi_device *from) +{ +