#include <linux/dmi.h>
#include <linux/string.h>
#include <linux/ctype.h>
-#include <linux/pnp.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
int intf_num;
ipmi_smi_t intf;
struct si_sm_data *si_sm;
- struct si_sm_handlers *handlers;
+ const struct si_sm_handlers *handlers;
enum si_type si_type;
spinlock_t si_lock;
struct ipmi_smi_msg *waiting_msg;
bool supports_event_msg_buff;
/*
- * Can we clear the global enables receive irq bit?
+ * Can we disable interrupts the global enables receive irq
+ * bit? There are currently two forms of brokenness, some
+ * systems cannot disable the bit (which is technically within
+ * the spec but a bad idea) and some systems have the bit
+ * forced to zero even though interrupts work (which is
+ * clearly outside the spec). The next bool tells which form
+ * of brokenness is present.
*/
- bool cannot_clear_recv_irq_bit;
+ bool cannot_disable_irq;
+
+ /*
+ * Some systems are broken and cannot set the irq enable
+ * bit, even if they support interrupts.
+ */
+ bool irq_enable_broken;
/*
* Did we get an attention that we did not handle?
#ifdef CONFIG_PCI
static bool pci_registered;
#endif
-#ifdef CONFIG_ACPI
-static bool pnp_registered;
-#endif
#ifdef CONFIG_PARISC
static bool parisc_registered;
#endif
return rv;
}
-static void start_check_enables(struct smi_info *smi_info)
+static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
+{
+ smi_info->last_timeout_jiffies = jiffies;
+ mod_timer(&smi_info->si_timer, new_val);
+ smi_info->timer_running = true;
+}
+
+/*
+ * Start a new message and (re)start the timer and thread.
+ */
+static void start_new_msg(struct smi_info *smi_info, unsigned char *msg,
+ unsigned int size)
+{
+ smi_mod_timer(smi_info, jiffies + SI_TIMEOUT_JIFFIES);
+
+ if (smi_info->thread)
+ wake_up_process(smi_info->thread);
+
+ smi_info->handlers->start_transaction(smi_info->si_sm, msg, size);
+}
+
+static void start_check_enables(struct smi_info *smi_info, bool start_timer)
{
unsigned char msg[2];
msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
- smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+ if (start_timer)
+ start_new_msg(smi_info, msg, 2);
+ else
+ smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
smi_info->si_state = SI_CHECKING_ENABLES;
}
-static void start_clear_flags(struct smi_info *smi_info)
+static void start_clear_flags(struct smi_info *smi_info, bool start_timer)
{
unsigned char msg[3];
msg[1] = IPMI_CLEAR_MSG_FLAGS_CMD;
msg[2] = WDT_PRE_TIMEOUT_INT;
- smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
+ if (start_timer)
+ start_new_msg(smi_info, msg, 3);
+ else
+ smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
smi_info->si_state = SI_CLEARING_FLAGS;
}
smi_info->curr_msg->data[1] = IPMI_GET_MSG_CMD;
smi_info->curr_msg->data_size = 2;
- smi_info->handlers->start_transaction(
- smi_info->si_sm,
- smi_info->curr_msg->data,
- smi_info->curr_msg->data_size);
+ start_new_msg(smi_info, smi_info->curr_msg->data,
+ smi_info->curr_msg->data_size);
smi_info->si_state = SI_GETTING_MESSAGES;
}
smi_info->curr_msg->data[1] = IPMI_READ_EVENT_MSG_BUFFER_CMD;
smi_info->curr_msg->data_size = 2;
- smi_info->handlers->start_transaction(
- smi_info->si_sm,
- smi_info->curr_msg->data,
- smi_info->curr_msg->data_size);
+ start_new_msg(smi_info, smi_info->curr_msg->data,
+ smi_info->curr_msg->data_size);
smi_info->si_state = SI_GETTING_EVENTS;
}
-static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
-{
- smi_info->last_timeout_jiffies = jiffies;
- mod_timer(&smi_info->si_timer, new_val);
- smi_info->timer_running = true;
-}
-
/*
* When we have a situtaion where we run out of memory and cannot
* allocate messages, we just leave them in the BMC and run the system
* Note that we cannot just use disable_irq(), since the interrupt may
* be shared.
*/
-static inline bool disable_si_irq(struct smi_info *smi_info)
+static inline bool disable_si_irq(struct smi_info *smi_info, bool start_timer)
{
if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
smi_info->interrupt_disabled = true;
- start_check_enables(smi_info);
+ start_check_enables(smi_info, start_timer);
return true;
}
return false;
{
if ((smi_info->irq) && (smi_info->interrupt_disabled)) {
smi_info->interrupt_disabled = false;
- start_check_enables(smi_info);
+ start_check_enables(smi_info, true);
return true;
}
return false;
msg = ipmi_alloc_smi_msg();
if (!msg) {
- if (!disable_si_irq(smi_info))
+ if (!disable_si_irq(smi_info, true))
smi_info->si_state = SI_NORMAL;
} else if (enable_si_irq(smi_info)) {
ipmi_free_smi_msg(msg);
/* Watchdog pre-timeout */
smi_inc_stat(smi_info, watchdog_pretimeouts);
- start_clear_flags(smi_info);
+ start_clear_flags(smi_info, true);
smi_info->msg_flags &= ~WDT_PRE_TIMEOUT_INT;
if (smi_info->intf)
ipmi_smi_watchdog_pretimeout(smi_info->intf);
if (smi_info->supports_event_msg_buff)
enables |= IPMI_BMC_EVT_MSG_BUFF;
- if ((smi_info->irq && !smi_info->interrupt_disabled) ||
- smi_info->cannot_clear_recv_irq_bit)
+ if (((smi_info->irq && !smi_info->interrupt_disabled) ||
+ smi_info->cannot_disable_irq) &&
+ !smi_info->irq_enable_broken)
enables |= IPMI_BMC_RCV_MSG_INTR;
if (smi_info->supports_event_msg_buff &&
- smi_info->irq && !smi_info->interrupt_disabled)
-
+ smi_info->irq && !smi_info->interrupt_disabled &&
+ !smi_info->irq_enable_broken)
enables |= IPMI_BMC_EVT_MSG_INTR;
*irq_on = enables & (IPMI_BMC_EVT_MSG_INTR | IPMI_BMC_RCV_MSG_INTR);
msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
msg[1] = IPMI_GET_MSG_FLAGS_CMD;
- smi_info->handlers->start_transaction(
- smi_info->si_sm, msg, 2);
+ start_new_msg(smi_info, msg, 2);
smi_info->si_state = SI_GETTING_FLAGS;
goto restart;
}
* disable and messages disabled.
*/
if (smi_info->supports_event_msg_buff || smi_info->irq) {
- start_check_enables(smi_info);
+ start_check_enables(smi_info, true);
} else {
smi_info->curr_msg = alloc_msg_handle_irq(smi_info);
if (!smi_info->curr_msg)
}
goto restart;
}
+
+ if (si_sm_result == SI_SM_IDLE && smi_info->timer_running) {
+ /* Ok it if fails, the timer will just go off. */
+ if (del_timer(&smi_info->si_timer))
+ smi_info->timer_running = false;
+ }
+
out:
return si_sm_result;
}
}
}
+static void flush_messages(void *send_info)
+{
+ struct smi_info *smi_info = send_info;
+ enum si_sm_result result;
+
+ /*
+ * Currently, this function is called only in run-to-completion
+ * mode. This means we are single-threaded, no need for locks.
+ */
+ result = smi_event_handler(smi_info, 0);
+ while (result != SI_SM_IDLE) {
+ udelay(SI_SHORT_TIMEOUT_USEC);
+ result = smi_event_handler(smi_info, SI_SHORT_TIMEOUT_USEC);
+ }
+}
+
static void sender(void *send_info,
struct ipmi_smi_msg *msg)
{
struct smi_info *smi_info = send_info;
- enum si_sm_result result;
unsigned long flags;
debug_timestamp("Enqueue");
if (smi_info->run_to_completion) {
/*
- * If we are running to completion, start it and run
- * transactions until everything is clear.
+ * If we are running to completion, start it. Upper
+ * layer will call flush_messages to clear it out.
*/
smi_info->waiting_msg = msg;
-
- /*
- * Run to completion means we are single-threaded, no
- * need for locks.
- */
-
- result = smi_event_handler(smi_info, 0);
- while (result != SI_SM_IDLE) {
- udelay(SI_SHORT_TIMEOUT_USEC);
- result = smi_event_handler(smi_info,
- SI_SHORT_TIMEOUT_USEC);
- }
return;
}
static void set_run_to_completion(void *send_info, bool i_run_to_completion)
{
struct smi_info *smi_info = send_info;
- enum si_sm_result result;
smi_info->run_to_completion = i_run_to_completion;
- if (i_run_to_completion) {
- result = smi_event_handler(smi_info, 0);
- while (result != SI_SM_IDLE) {
- udelay(SI_SHORT_TIMEOUT_USEC);
- result = smi_event_handler(smi_info,
- SI_SHORT_TIMEOUT_USEC);
- }
- }
+ if (i_run_to_completion)
+ flush_messages(smi_info);
}
/*
new_smi->intf = intf;
- /* Try to claim any interrupts. */
- if (new_smi->irq_setup)
- new_smi->irq_setup(new_smi);
-
/* Set up the timer that drives the interface. */
setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi);
smi_mod_timer(new_smi, jiffies + SI_TIMEOUT_JIFFIES);
+ /* Try to claim any interrupts. */
+ if (new_smi->irq_setup)
+ new_smi->irq_setup(new_smi);
+
/*
* Check if the user forcefully enabled the daemon.
*/
atomic_set(&smi_info->req_events, 0);
}
-static struct ipmi_smi_handlers handlers = {
+static const struct ipmi_smi_handlers handlers = {
.owner = THIS_MODULE,
.start_processing = smi_start_processing,
.get_smi_info = get_smi_info,
.set_need_watch = set_need_watch,
.set_maintenance_mode = set_maintenance_mode,
.set_run_to_completion = set_run_to_completion,
+ .flush_messages = flush_messages,
.poll = poll,
};
#define DEFAULT_REGSIZE 1
#ifdef CONFIG_ACPI
-static bool si_tryacpi = 1;
+static bool si_tryacpi = true;
#endif
#ifdef CONFIG_DMI
-static bool si_trydmi = 1;
+static bool si_trydmi = true;
#endif
-static bool si_tryplatform = 1;
+static bool si_tryplatform = true;
#ifdef CONFIG_PCI
-static bool si_trypci = 1;
+static bool si_trypci = true;
#endif
static bool si_trydefaults = IS_ENABLED(CONFIG_IPMI_SI_PROBE_DEFAULTS);
static char *si_type[SI_MAX_PARMS];
return rv;
}
-static unsigned char port_inb(struct si_sm_io *io, unsigned int offset)
+static unsigned char port_inb(const struct si_sm_io *io, unsigned int offset)
{
unsigned int addr = io->addr_data;
return inb(addr + (offset * io->regspacing));
}
-static void port_outb(struct si_sm_io *io, unsigned int offset,
+static void port_outb(const struct si_sm_io *io, unsigned int offset,
unsigned char b)
{
unsigned int addr = io->addr_data;
outb(b, addr + (offset * io->regspacing));
}
-static unsigned char port_inw(struct si_sm_io *io, unsigned int offset)
+static unsigned char port_inw(const struct si_sm_io *io, unsigned int offset)
{
unsigned int addr = io->addr_data;
return (inw(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
}
-static void port_outw(struct si_sm_io *io, unsigned int offset,
+static void port_outw(const struct si_sm_io *io, unsigned int offset,
unsigned char b)
{
unsigned int addr = io->addr_data;
outw(b << io->regshift, addr + (offset * io->regspacing));
}
-static unsigned char port_inl(struct si_sm_io *io, unsigned int offset)
+static unsigned char port_inl(const struct si_sm_io *io, unsigned int offset)
{
unsigned int addr = io->addr_data;
return (inl(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
}
-static void port_outl(struct si_sm_io *io, unsigned int offset,
+static void port_outl(const struct si_sm_io *io, unsigned int offset,
unsigned char b)
{
unsigned int addr = io->addr_data;
return 0;
}
-static unsigned char intf_mem_inb(struct si_sm_io *io, unsigned int offset)
+static unsigned char intf_mem_inb(const struct si_sm_io *io,
+ unsigned int offset)
{
return readb((io->addr)+(offset * io->regspacing));
}
-static void intf_mem_outb(struct si_sm_io *io, unsigned int offset,
- unsigned char b)
+static void intf_mem_outb(const struct si_sm_io *io, unsigned int offset,
+ unsigned char b)
{
writeb(b, (io->addr)+(offset * io->regspacing));
}
-static unsigned char intf_mem_inw(struct si_sm_io *io, unsigned int offset)
+static unsigned char intf_mem_inw(const struct si_sm_io *io,
+ unsigned int offset)
{
return (readw((io->addr)+(offset * io->regspacing)) >> io->regshift)
& 0xff;
}
-static void intf_mem_outw(struct si_sm_io *io, unsigned int offset,
- unsigned char b)
+static void intf_mem_outw(const struct si_sm_io *io, unsigned int offset,
+ unsigned char b)
{
writeb(b << io->regshift, (io->addr)+(offset * io->regspacing));
}
-static unsigned char intf_mem_inl(struct si_sm_io *io, unsigned int offset)
+static unsigned char intf_mem_inl(const struct si_sm_io *io,
+ unsigned int offset)
{
return (readl((io->addr)+(offset * io->regspacing)) >> io->regshift)
& 0xff;
}
-static void intf_mem_outl(struct si_sm_io *io, unsigned int offset,
- unsigned char b)
+static void intf_mem_outl(const struct si_sm_io *io, unsigned int offset,
+ unsigned char b)
{
writel(b << io->regshift, (io->addr)+(offset * io->regspacing));
}
#ifdef readq
-static unsigned char mem_inq(struct si_sm_io *io, unsigned int offset)
+static unsigned char mem_inq(const struct si_sm_io *io, unsigned int offset)
{
return (readq((io->addr)+(offset * io->regspacing)) >> io->regshift)
& 0xff;
}
-static void mem_outq(struct si_sm_io *io, unsigned int offset,
+static void mem_outq(const struct si_sm_io *io, unsigned int offset,
unsigned char b)
{
writeq(b << io->regshift, (io->addr)+(offset * io->regspacing));
try_init_spmi(spmi);
}
}
-
-static int ipmi_pnp_probe(struct pnp_dev *dev,
- const struct pnp_device_id *dev_id)
-{
- struct acpi_device *acpi_dev;
- struct smi_info *info;
- struct resource *res, *res_second;
- acpi_handle handle;
- acpi_status status;
- unsigned long long tmp;
- int rv = -EINVAL;
-
- acpi_dev = pnp_acpi_device(dev);
- if (!acpi_dev)
- return -ENODEV;
-
- info = smi_info_alloc();
- if (!info)
- return -ENOMEM;
-
- info->addr_source = SI_ACPI;
- printk(KERN_INFO PFX "probing via ACPI\n");
-
- handle = acpi_dev->handle;
- info->addr_info.acpi_info.acpi_handle = handle;
-
- /* _IFT tells us the interface type: KCS, BT, etc */
- status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
- if (ACPI_FAILURE(status)) {
- dev_err(&dev->dev, "Could not find ACPI IPMI interface type\n");
- goto err_free;
- }
-
- switch (tmp) {
- case 1:
- info->si_type = SI_KCS;
- break;
- case 2:
- info->si_type = SI_SMIC;
- break;
- case 3:
- info->si_type = SI_BT;
- break;
- case 4: /* SSIF, just ignore */
- rv = -ENODEV;
- goto err_free;
- default:
- dev_info(&dev->dev, "unknown IPMI type %lld\n", tmp);
- goto err_free;
- }
-
- res = pnp_get_resource(dev, IORESOURCE_IO, 0);
- if (res) {
- info->io_setup = port_setup;
- info->io.addr_type = IPMI_IO_ADDR_SPACE;
- } else {
- res = pnp_get_resource(dev, IORESOURCE_MEM, 0);
- if (res) {
- info->io_setup = mem_setup;
- info->io.addr_type = IPMI_MEM_ADDR_SPACE;
- }
- }
- if (!res) {
- dev_err(&dev->dev, "no I/O or memory address\n");
- goto err_free;
- }
- info->io.addr_data = res->start;
-
- info->io.regspacing = DEFAULT_REGSPACING;
- res_second = pnp_get_resource(dev,
- (info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
- IORESOURCE_IO : IORESOURCE_MEM,
- 1);
- if (res_second) {
- if (res_second->start > info->io.addr_data)
- info->io.regspacing = res_second->start - info->io.addr_data;
- }
- info->io.regsize = DEFAULT_REGSPACING;
- info->io.regshift = 0;
-
- /* If _GPE exists, use it; otherwise use standard interrupts */
- status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
- if (ACPI_SUCCESS(status)) {
- info->irq = tmp;
- info->irq_setup = acpi_gpe_irq_setup;
- } else if (pnp_irq_valid(dev, 0)) {
- info->irq = pnp_irq(dev, 0);
- info->irq_setup = std_irq_setup;
- }
-
- info->dev = &dev->dev;
- pnp_set_drvdata(dev, info);
-
- dev_info(info->dev, "%pR regsize %d spacing %d irq %d\n",
- res, info->io.regsize, info->io.regspacing,
- info->irq);
-
- rv = add_smi(info);
- if (rv)
- kfree(info);
-
- return rv;
-
-err_free:
- kfree(info);
- return rv;
-}
-
-static void ipmi_pnp_remove(struct pnp_dev *dev)
-{
- struct smi_info *info = pnp_get_drvdata(dev);
-
- cleanup_one_si(info);
-}
-
-static const struct pnp_device_id pnp_dev_table[] = {
- {"IPI0001", 0},
- {"", 0},
-};
-
-static struct pnp_driver ipmi_pnp_driver = {
- .name = DEVICE_NAME,
- .probe = ipmi_pnp_probe,
- .remove = ipmi_pnp_remove,
- .id_table = pnp_dev_table,
-};
-
-MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
#endif
#ifdef CONFIG_DMI
pci_disable_device(pdev);
}
-static struct pci_device_id ipmi_pci_devices[] = {
+static const struct pci_device_id ipmi_pci_devices[] = {
{ PCI_DEVICE(PCI_HP_VENDOR_ID, PCI_MMC_DEVICE_ID) },
{ PCI_DEVICE_CLASS(PCI_ERMC_CLASSCODE, PCI_ERMC_CLASSCODE_MASK) },
{ 0, }
};
#endif /* CONFIG_PCI */
-static const struct of_device_id ipmi_match[];
-static int ipmi_probe(struct platform_device *dev)
-{
#ifdef CONFIG_OF
+static const struct of_device_id of_ipmi_match[] = {
+ { .type = "ipmi", .compatible = "ipmi-kcs",
+ .data = (void *)(unsigned long) SI_KCS },
+ { .type = "ipmi", .compatible = "ipmi-smic",
+ .data = (void *)(unsigned long) SI_SMIC },
+ { .type = "ipmi", .compatible = "ipmi-bt",
+ .data = (void *)(unsigned long) SI_BT },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_ipmi_match);
+
+static int of_ipmi_probe(struct platform_device *dev)
+{
const struct of_device_id *match;
struct smi_info *info;
struct resource resource;
dev_info(&dev->dev, "probing via device tree\n");
- match = of_match_device(ipmi_match, &dev->dev);
+ match = of_match_device(of_ipmi_match, &dev->dev);
if (!match)
- return -EINVAL;
+ return -ENODEV;
if (!of_device_is_available(np))
return -EINVAL;
kfree(info);
return ret;
}
-#endif
return 0;
}
+#else
+#define of_ipmi_match NULL
+static int of_ipmi_probe(struct platform_device *dev)
+{
+ return -ENODEV;
+}
+#endif
-static int ipmi_remove(struct platform_device *dev)
+#ifdef CONFIG_ACPI
+static int acpi_ipmi_probe(struct platform_device *dev)
{
-#ifdef CONFIG_OF
- cleanup_one_si(dev_get_drvdata(&dev->dev));
+ struct smi_info *info;
+ struct resource *res, *res_second;
+ acpi_handle handle;
+ acpi_status status;
+ unsigned long long tmp;
+ int rv = -EINVAL;
+
+ handle = ACPI_HANDLE(&dev->dev);
+ if (!handle)
+ return -ENODEV;
+
+ info = smi_info_alloc();
+ if (!info)
+ return -ENOMEM;
+
+ info->addr_source = SI_ACPI;
+ dev_info(&dev->dev, PFX "probing via ACPI\n");
+
+ info->addr_info.acpi_info.acpi_handle = handle;
+
+ /* _IFT tells us the interface type: KCS, BT, etc */
+ status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
+ if (ACPI_FAILURE(status)) {
+ dev_err(&dev->dev, "Could not find ACPI IPMI interface type\n");
+ goto err_free;
+ }
+
+ switch (tmp) {
+ case 1:
+ info->si_type = SI_KCS;
+ break;
+ case 2:
+ info->si_type = SI_SMIC;
+ break;
+ case 3:
+ info->si_type = SI_BT;
+ break;
+ case 4: /* SSIF, just ignore */
+ rv = -ENODEV;
+ goto err_free;
+ default:
+ dev_info(&dev->dev, "unknown IPMI type %lld\n", tmp);
+ goto err_free;
+ }
+
+ res = platform_get_resource(dev, IORESOURCE_IO, 0);
+ if (res) {
+ info->io_setup = port_setup;
+ info->io.addr_type = IPMI_IO_ADDR_SPACE;
+ } else {
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (res) {
+ info->io_setup = mem_setup;
+ info->io.addr_type = IPMI_MEM_ADDR_SPACE;
+ }
+ }
+ if (!res) {
+ dev_err(&dev->dev, "no I/O or memory address\n");
+ goto err_free;
+ }
+ info->io.addr_data = res->start;
+
+ info->io.regspacing = DEFAULT_REGSPACING;
+ res_second = platform_get_resource(dev,
+ (info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
+ IORESOURCE_IO : IORESOURCE_MEM,
+ 1);
+ if (res_second) {
+ if (res_second->start > info->io.addr_data)
+ info->io.regspacing =
+ res_second->start - info->io.addr_data;
+ }
+ info->io.regsize = DEFAULT_REGSPACING;
+ info->io.regshift = 0;
+
+ /* If _GPE exists, use it; otherwise use standard interrupts */
+ status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
+ if (ACPI_SUCCESS(status)) {
+ info->irq = tmp;
+ info->irq_setup = acpi_gpe_irq_setup;
+ } else {
+ int irq = platform_get_irq(dev, 0);
+
+ if (irq > 0) {
+ info->irq = irq;
+ info->irq_setup = std_irq_setup;
+ }
+ }
+
+ info->dev = &dev->dev;
+ platform_set_drvdata(dev, info);
+
+ dev_info(info->dev, "%pR regsize %d spacing %d irq %d\n",
+ res, info->io.regsize, info->io.regspacing,
+ info->irq);
+
+ rv = add_smi(info);
+ if (rv)
+ kfree(info);
+
+ return rv;
+
+err_free:
+ kfree(info);
+ return rv;
+}
+
+static const struct acpi_device_id acpi_ipmi_match[] = {
+ { "IPI0001", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, acpi_ipmi_match);
+#else
+static int acpi_ipmi_probe(struct platform_device *dev)
+{
+ return -ENODEV;
+}
#endif
- return 0;
+
+static int ipmi_probe(struct platform_device *dev)
+{
+ if (of_ipmi_probe(dev) == 0)
+ return 0;
+
+ return acpi_ipmi_probe(dev);
}
-static const struct of_device_id ipmi_match[] =
+static int ipmi_remove(struct platform_device *dev)
{
- { .type = "ipmi", .compatible = "ipmi-kcs",
- .data = (void *)(unsigned long) SI_KCS },
- { .type = "ipmi", .compatible = "ipmi-smic",
- .data = (void *)(unsigned long) SI_SMIC },
- { .type = "ipmi", .compatible = "ipmi-bt",
- .data = (void *)(unsigned long) SI_BT },
- {},
-};
+ struct smi_info *info = dev_get_drvdata(&dev->dev);
+
+ cleanup_one_si(info);
+ return 0;
+}
static struct platform_driver ipmi_driver = {
.driver = {
.name = DEVICE_NAME,
- .of_match_table = ipmi_match,
+ .of_match_table = of_ipmi_match,
+ .acpi_match_table = ACPI_PTR(acpi_ipmi_match),
},
.probe = ipmi_probe,
.remove = ipmi_remove,
return rv;
}
-/*
- * Some BMCs do not support clearing the receive irq bit in the global
- * enables (even if they don't support interrupts on the BMC). Check
- * for this and handle it properly.
- */
-static void check_clr_rcv_irq(struct smi_info *smi_info)
+static int get_global_enables(struct smi_info *smi_info, u8 *enables)
{
unsigned char msg[3];
unsigned char *resp;
int rv;
resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
- if (!resp) {
- printk(KERN_WARNING PFX "Out of memory allocating response for"
- " global enables command, cannot check recv irq bit"
- " handling.\n");
- return;
- }
+ if (!resp)
+ return -ENOMEM;
msg[0] = IPMI_NETFN_APP_REQUEST << 2;
msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
rv = wait_for_msg_done(smi_info);
if (rv) {
- printk(KERN_WARNING PFX "Error getting response from get"
- " global enables command, cannot check recv irq bit"
- " handling.\n");
+ dev_warn(smi_info->dev,
+ "Error getting response from get global enables command: %d\n",
+ rv);
goto out;
}
resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
resp[1] != IPMI_GET_BMC_GLOBAL_ENABLES_CMD ||
resp[2] != 0) {
- printk(KERN_WARNING PFX "Invalid return from get global"
- " enables command, cannot check recv irq bit"
- " handling.\n");
+ dev_warn(smi_info->dev,
+ "Invalid return from get global enables command: %ld %x %x %x\n",
+ resp_len, resp[0], resp[1], resp[2]);
rv = -EINVAL;
goto out;
+ } else {
+ *enables = resp[3];
}
- if ((resp[3] & IPMI_BMC_RCV_MSG_INTR) == 0)
- /* Already clear, should work ok. */
- goto out;
+out:
+ kfree(resp);
+ return rv;
+}
+
+/*
+ * Returns 1 if it gets an error from the command.
+ */
+static int set_global_enables(struct smi_info *smi_info, u8 enables)
+{
+ unsigned char msg[3];
+ unsigned char *resp;
+ unsigned long resp_len;
+ int rv;
+
+ resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
+ if (!resp)
+ return -ENOMEM;
msg[0] = IPMI_NETFN_APP_REQUEST << 2;
msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
- msg[2] = resp[3] & ~IPMI_BMC_RCV_MSG_INTR;
+ msg[2] = enables;
smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
rv = wait_for_msg_done(smi_info);
if (rv) {
- printk(KERN_WARNING PFX "Error getting response from set"
- " global enables command, cannot check recv irq bit"
- " handling.\n");
+ dev_warn(smi_info->dev,
+ "Error getting response from set global enables command: %d\n",
+ rv);
goto out;
}
if (resp_len < 3 ||
resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
resp[1] != IPMI_SET_BMC_GLOBAL_ENABLES_CMD) {
- printk(KERN_WARNING PFX "Invalid return from get global"
- " enables command, cannot check recv irq bit"
- " handling.\n");
+ dev_warn(smi_info->dev,
+ "Invalid return from set global enables command: %ld %x %x\n",
+ resp_len, resp[0], resp[1]);
rv = -EINVAL;
goto out;
}
- if (resp[2] != 0) {
+ if (resp[2] != 0)
+ rv = 1;
+
+out:
+ kfree(resp);
+ return rv;
+}
+
+/*
+ * Some BMCs do not support clearing the receive irq bit in the global
+ * enables (even if they don't support interrupts on the BMC). Check
+ * for this and handle it properly.
+ */
+static void check_clr_rcv_irq(struct smi_info *smi_info)
+{
+ u8 enables = 0;
+ int rv;
+
+ rv = get_global_enables(smi_info, &enables);
+ if (!rv) {
+ if ((enables & IPMI_BMC_RCV_MSG_INTR) == 0)
+ /* Already clear, should work ok. */
+ return;
+
+ enables &= ~IPMI_BMC_RCV_MSG_INTR;
+ rv = set_global_enables(smi_info, enables);
+ }
+
+ if (rv < 0) {
+ dev_err(smi_info->dev,
+ "Cannot check clearing the rcv irq: %d\n", rv);
+ return;
+ }
+
+ if (rv) {
/*
* An error when setting the event buffer bit means
* clearing the bit is not supported.
*/
- printk(KERN_WARNING PFX "The BMC does not support clearing"
- " the recv irq bit, compensating, but the BMC needs to"
- " be fixed.\n");
- smi_info->cannot_clear_recv_irq_bit = true;
+ dev_warn(smi_info->dev,
+ "The BMC does not support clearing the recv irq bit, compensating, but the BMC needs to be fixed.\n");
+ smi_info->cannot_disable_irq = true;
+ }
+}
+
+/*
+ * Some BMCs do not support setting the interrupt bits in the global
+ * enables even if they support interrupts. Clearly bad, but we can
+ * compensate.
+ */
+static void check_set_rcv_irq(struct smi_info *smi_info)
+{
+ u8 enables = 0;
+ int rv;
+
+ if (!smi_info->irq)
+ return;
+
+ rv = get_global_enables(smi_info, &enables);
+ if (!rv) {
+ enables |= IPMI_BMC_RCV_MSG_INTR;
+ rv = set_global_enables(smi_info, enables);
+ }
+
+ if (rv < 0) {
+ dev_err(smi_info->dev,
+ "Cannot check setting the rcv irq: %d\n", rv);
+ return;
+ }
+
+ if (rv) {
+ /*
+ * An error when setting the event buffer bit means
+ * setting the bit is not supported.
+ */
+ dev_warn(smi_info->dev,
+ "The BMC does not support setting the recv irq bit, compensating, but the BMC needs to be fixed.\n");
+ smi_info->cannot_disable_irq = true;
+ smi_info->irq_enable_broken = true;
}
- out:
- kfree(resp);
}
static int try_enable_event_buffer(struct smi_info *smi_info)
setup_dell_poweredge_bt_xaction_handler(smi_info);
}
+static void check_for_broken_irqs(struct smi_info *smi_info)
+{
+ check_clr_rcv_irq(smi_info);
+ check_set_rcv_irq(smi_info);
+}
+
static inline void wait_for_timer_and_thread(struct smi_info *smi_info)
{
if (smi_info->thread != NULL)
del_timer_sync(&smi_info->si_timer);
}
-static struct ipmi_default_vals
+static const struct ipmi_default_vals
{
int type;
int port;
goto out_err;
}
- check_clr_rcv_irq(new_smi);
-
setup_oem_data_handler(new_smi);
setup_xaction_handlers(new_smi);
+ check_for_broken_irqs(new_smi);
new_smi->waiting_msg = NULL;
new_smi->curr_msg = NULL;
* Start clearing the flags before we enable interrupts or the
* timer to avoid racing with the timer.
*/
- start_clear_flags(new_smi);
+ start_clear_flags(new_smi, false);
/*
* IRQ is defined to be set when non-zero. req_events will
}
#endif
-#ifdef CONFIG_ACPI
- if (si_tryacpi) {
- pnp_register_driver(&ipmi_pnp_driver);
- pnp_registered = true;
- }
-#endif
-
#ifdef CONFIG_DMI
if (si_trydmi)
dmi_find_bmc();
poll(to_clean);
schedule_timeout_uninterruptible(1);
}
- disable_si_irq(to_clean);
+ disable_si_irq(to_clean, false);
while (to_clean->curr_msg || (to_clean->si_state != SI_NORMAL)) {
poll(to_clean);
schedule_timeout_uninterruptible(1);
if (pci_registered)
pci_unregister_driver(&ipmi_pci_driver);
#endif
-#ifdef CONFIG_ACPI
- if (pnp_registered)
- pnp_unregister_driver(&ipmi_pnp_driver);
-#endif
#ifdef CONFIG_PARISC
if (parisc_registered)
unregister_parisc_driver(&ipmi_parisc_driver);
Code Review / kvmfornfv.git / blobdiff