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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 15:12:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 15:12:28 -0800
commit6363b3f3ac5be096d08c8c504128befa0c033529 (patch)
tree8bef82ead96f39bc09f4d1a1fe17dfa5d0c39d49 /drivers/char/ipmi/ipmi_dmi.c
parent1b6115fbe3b3db746d7baa11399dd617fc75e1c4 (diff)
parent6297fabd93f93182245383ba7de56bef829a796b (diff)
Merge tag 'ipmi-for-4.15' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard: "This is a fairly large rework of the IPMI code, along with a bunch of smaller fixes. The major changes have been in the next tree for a couple of months, so they should be good to do in. - Some users had IPMI systems where the GUID of the IPMI controller could change. So rescanning of the GUID was added. The naming of some sysfs things was dependent on the GUID, however, so this resulted in the sysfs interface code in IPMI changing to remove that dependency and name the IPMI BMCs like other sysfs devices. - The ipmi_si_intf.c code was fairly bloated with all the different discovery methods (PCI, ACPI, SMBIOS, OF, platform, module parameters, hot add). The structure of how the interfaces were added was redone to make them more modular, then the individual methods were pulled out into their own files" * tag 'ipmi-for-4.15' of git://github.com/cminyard/linux-ipmi: (48 commits) ipmi_si: Delete an error message for a failed memory allocation in try_smi_init() ipmi_si: fix memory leak on new_smi ipmi: remove redundant initialization of bmc ipmi: pr_err() strings should end with newlines ipmi: Clean up some print operations ipmi: Make the DMI probe into a generic platform probe ipmi: Make the IPMI proc interface configurable ipmi_ssif: Add device attrs for the things in proc ipmi_si: Add device attrs for the things in proc ipmi_si: remove ipmi_smi_alloc() function ipmi_si: Move port and mem I/O handling to their own files ipmi_si: Get rid of unused spacing and port fields ipmi_si: Move PARISC handling to another file ipmi_si: Move PCI setup to another file ipmi_si: Move platform device handling to another file ipmi_si: Move hardcode handling to a separate file. ipmi_si: Move the hotmod handling to another file. ipmi_si: Change ipmi_si_add_smi() to take just I/O info ipmi_si: Move io setup into io structure ipmi_si: Move irq setup handling into the io struct ...
Diffstat (limited to 'drivers/char/ipmi/ipmi_dmi.c')
-rw-r--r--drivers/char/ipmi/ipmi_dmi.c76
1 files changed, 52 insertions, 24 deletions
diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c
index 2059f79d669a..ab78b3be7e33 100644
--- a/drivers/char/ipmi/ipmi_dmi.c
+++ b/drivers/char/ipmi/ipmi_dmi.c
@@ -9,10 +9,16 @@
#include <linux/dmi.h>
#include <linux/platform_device.h>
#include <linux/property.h>
+#include "ipmi_si_sm.h"
#include "ipmi_dmi.h"
+#define IPMI_DMI_TYPE_KCS 0x01
+#define IPMI_DMI_TYPE_SMIC 0x02
+#define IPMI_DMI_TYPE_BT 0x03
+#define IPMI_DMI_TYPE_SSIF 0x04
+
struct ipmi_dmi_info {
- int type;
+ enum si_type si_type;
u32 flags;
unsigned long addr;
u8 slave_addr;
@@ -23,6 +29,15 @@ static struct ipmi_dmi_info *ipmi_dmi_infos;
static int ipmi_dmi_nr __initdata;
+#define set_prop_entry(_p_, _name_, type, val) \
+do { \
+ struct property_entry *_p = &_p_; \
+ _p->name = _name_; \
+ _p->length = sizeof(type); \
+ _p->is_string = false; \
+ _p->value.type##_data = val; \
+} while(0)
+
static void __init dmi_add_platform_ipmi(unsigned long base_addr,
u32 flags,
u8 slave_addr,
@@ -33,27 +48,14 @@ static void __init dmi_add_platform_ipmi(unsigned long base_addr,
struct platform_device *pdev;
struct resource r[4];
unsigned int num_r = 1, size;
- struct property_entry p[4] = {
- PROPERTY_ENTRY_U8("slave-addr", slave_addr),
- PROPERTY_ENTRY_U8("ipmi-type", type),
- PROPERTY_ENTRY_U16("i2c-addr", base_addr),
- { }
- };
+ struct property_entry p[5];
+ unsigned int pidx = 0;
char *name, *override;
int rv;
+ enum si_type si_type;
struct ipmi_dmi_info *info;
- info = kmalloc(sizeof(*info), GFP_KERNEL);
- if (!info) {
- pr_warn("ipmi:dmi: Could not allocate dmi info\n");
- } else {
- info->type = type;
- info->flags = flags;
- info->addr = base_addr;
- info->slave_addr = slave_addr;
- info->next = ipmi_dmi_infos;
- ipmi_dmi_infos = info;
- }
+ memset(p, 0, sizeof(p));
name = "dmi-ipmi-si";
override = "ipmi_si";
@@ -63,28 +65,53 @@ static void __init dmi_add_platform_ipmi(unsigned long base_addr,
override = "ipmi_ssif";
offset = 1;
size = 1;
+ si_type = SI_TYPE_INVALID;
break;
case IPMI_DMI_TYPE_BT:
size = 3;
+ si_type = SI_BT;
break;
case IPMI_DMI_TYPE_KCS:
+ size = 2;
+ si_type = SI_KCS;
+ break;
case IPMI_DMI_TYPE_SMIC:
size = 2;
+ si_type = SI_SMIC;
break;
default:
- pr_err("ipmi:dmi: Invalid IPMI type: %d", type);
+ pr_err("ipmi:dmi: Invalid IPMI type: %d\n", type);
return;
}
+ if (si_type != SI_TYPE_INVALID)
+ set_prop_entry(p[pidx++], "ipmi-type", u8, si_type);
+ set_prop_entry(p[pidx++], "slave-addr", u8, slave_addr);
+ set_prop_entry(p[pidx++], "addr-source", u8, SI_SMBIOS);
+
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ pr_warn("ipmi:dmi: Could not allocate dmi info\n");
+ } else {
+ info->si_type = si_type;
+ info->flags = flags;
+ info->addr = base_addr;
+ info->slave_addr = slave_addr;
+ info->next = ipmi_dmi_infos;
+ ipmi_dmi_infos = info;
+ }
+
pdev = platform_device_alloc(name, ipmi_dmi_nr);
if (!pdev) {
- pr_err("ipmi:dmi: Error allocation IPMI platform device");
+ pr_err("ipmi:dmi: Error allocation IPMI platform device\n");
return;
}
pdev->driver_override = override;
- if (type == IPMI_DMI_TYPE_SSIF)
+ if (type == IPMI_DMI_TYPE_SSIF) {
+ set_prop_entry(p[pidx++], "i2c-addr", u16, base_addr);
goto add_properties;
+ }
memset(r, 0, sizeof(r));
@@ -152,12 +179,13 @@ err:
* This function allows an ACPI-specified IPMI device to look up the
* slave address from the DMI table.
*/
-int ipmi_dmi_get_slave_addr(int type, u32 flags, unsigned long base_addr)
+int ipmi_dmi_get_slave_addr(enum si_type si_type, u32 flags,
+ unsigned long base_addr)
{
struct ipmi_dmi_info *info = ipmi_dmi_infos;
while (info) {
- if (info->type == type &&
+ if (info->si_type == si_type &&
info->flags == flags &&
info->addr == base_addr)
return info->slave_addr;
@@ -240,7 +268,7 @@ static void __init dmi_decode_ipmi(const struct dmi_header *dm)
offset = 16;
break;
default:
- pr_err("ipmi:dmi: Invalid offset: 0");
+ pr_err("ipmi:dmi: Invalid offset: 0\n");
return;
}
}