diff options
| -rw-r--r-- | core/ipmi.c | 23 | ||||
| -rw-r--r-- | include/ipmi.h | 4 |
2 files changed, 27 insertions, 0 deletions
diff --git a/core/ipmi.c b/core/ipmi.c index 5caf057..941cf52 100644 --- a/core/ipmi.c +++ b/core/ipmi.c @@ -22,8 +22,13 @@ #include <opal-api.h> #include <device.h> #include <skiboot.h> +#include <lock.h> +#include <cpu.h> +#include <timebase.h> struct ipmi_backend *ipmi_backend = NULL; +static struct lock sync_lock = LOCK_UNLOCKED; +static struct ipmi_msg *sync_msg = NULL; void ipmi_free_msg(struct ipmi_msg *msg) { @@ -112,6 +117,24 @@ void ipmi_cmd_done(uint8_t cmd, uint8_t netfn, uint8_t cc, struct ipmi_msg *msg) /* At this point the message has should have been freed by the completion functions. */ + + /* If this is a synchronous message flag that we are done */ + if (msg == sync_msg) + sync_msg = NULL; +} + +void ipmi_queue_msg_sync(struct ipmi_msg *msg) +{ + lock(&sync_lock); + + assert(!sync_msg); + sync_msg = msg; + ipmi_queue_msg(msg); + + while (sync_msg) + time_wait_ms(100); + + unlock(&sync_lock); } void ipmi_register_backend(struct ipmi_backend *backend) diff --git a/include/ipmi.h b/include/ipmi.h index bbeae5a..5660704 100644 --- a/include/ipmi.h +++ b/include/ipmi.h @@ -176,6 +176,10 @@ int ipmi_queue_msg(struct ipmi_msg *msg); /* Add an ipmi message to the start of the queue */ int ipmi_queue_msg_head(struct ipmi_msg *msg); +/* Synchronously send an ipmi message. This won't return until the + * messages callback has been called. */ +void ipmi_queue_msg_sync(struct ipmi_msg *msg); + /* Process a completed message */ void ipmi_cmd_done(uint8_t cmd, uint8_t netfn, uint8_t cc, struct ipmi_msg *msg); |