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ipmi: Add support to customize OEM functions

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The routine ipmi_register_oem_netfn() lets external modules register
command handlers for OEM functions. Required for the PowerNV machine.

Cc: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191028070027.22752-2-clg@kaod.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-10-28 08:00:26 +01:00 committed by David Gibson
parent 1c27b252e7
commit ed8da05cdb
2 changed files with 48 additions and 44 deletions
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50
hw/ipmi/ipmi_bmc_sim.c
View File

@ -167,32 +167,14 @@ typedef struct IPMISensor {
#define MAX_SENSORS 20
#define IPMI_WATCHDOG_SENSOR 0
typedef struct IPMIBmcSim IPMIBmcSim;
typedef struct RspBuffer RspBuffer;
#define MAX_NETFNS 64
typedef struct IPMICmdHandler {
void (*cmd_handler)(IPMIBmcSim *s,
uint8_t *cmd, unsigned int cmd_len,
RspBuffer *rsp);
unsigned int cmd_len_min;
} IPMICmdHandler;
typedef struct IPMINetfn {
unsigned int cmd_nums;
const IPMICmdHandler *cmd_handlers;
} IPMINetfn;
typedef struct IPMIRcvBufEntry {
QTAILQ_ENTRY(IPMIRcvBufEntry) entry;
uint8_t len;
uint8_t buf[MAX_IPMI_MSG_SIZE];
} IPMIRcvBufEntry;
#define TYPE_IPMI_BMC_SIMULATOR "ipmi-bmc-sim"
#define IPMI_BMC_SIMULATOR(obj) OBJECT_CHECK(IPMIBmcSim, (obj), \
TYPE_IPMI_BMC_SIMULATOR)
struct IPMIBmcSim {
IPMIBmc parent;
@ -279,28 +261,8 @@ struct IPMIBmcSim {
#define IPMI_BMC_WATCHDOG_ACTION_POWER_DOWN 2
#define IPMI_BMC_WATCHDOG_ACTION_POWER_CYCLE 3
struct RspBuffer {
uint8_t buffer[MAX_IPMI_MSG_SIZE];
unsigned int len;
};
#define RSP_BUFFER_INITIALIZER { }
static inline void rsp_buffer_set_error(RspBuffer *rsp, uint8_t byte)
{
rsp->buffer[2] = byte;
}
/* Add a byte to the response. */
static inline void rsp_buffer_push(RspBuffer *rsp, uint8_t byte)
{
if (rsp->len >= sizeof(rsp->buffer)) {
rsp_buffer_set_error(rsp, IPMI_CC_REQUEST_DATA_TRUNCATED);
return;
}
rsp->buffer[rsp->len++] = byte;
}
static inline void rsp_buffer_pushmore(RspBuffer *rsp, uint8_t *bytes,
unsigned int n)
{
@ -630,8 +592,8 @@ static void ipmi_init_sensors_from_sdrs(IPMIBmcSim *s)
}
}
static int ipmi_register_netfn(IPMIBmcSim *s, unsigned int netfn,
const IPMINetfn *netfnd)
int ipmi_sim_register_netfn(IPMIBmcSim *s, unsigned int netfn,
const IPMINetfn *netfnd)
{
if ((netfn & 1) || (netfn >= MAX_NETFNS) || (s->netfns[netfn / 2])) {
return -1;
@ -1860,10 +1822,10 @@ static const IPMINetfn storage_netfn = {
static void register_cmds(IPMIBmcSim *s)
{
ipmi_register_netfn(s, IPMI_NETFN_CHASSIS, &chassis_netfn);
ipmi_register_netfn(s, IPMI_NETFN_SENSOR_EVENT, &sensor_event_netfn);
ipmi_register_netfn(s, IPMI_NETFN_APP, &app_netfn);
ipmi_register_netfn(s, IPMI_NETFN_STORAGE, &storage_netfn);
ipmi_sim_register_netfn(s, IPMI_NETFN_CHASSIS, &chassis_netfn);
ipmi_sim_register_netfn(s, IPMI_NETFN_SENSOR_EVENT, &sensor_event_netfn);
ipmi_sim_register_netfn(s, IPMI_NETFN_APP, &app_netfn);
ipmi_sim_register_netfn(s, IPMI_NETFN_STORAGE, &storage_netfn);
}
static uint8_t init_sdrs[] = {

42
include/hw/ipmi/ipmi.h
View File

@ -55,6 +55,7 @@ enum ipmi_op {
#define IPMI_CC_COMMAND_NOT_SUPPORTED 0xd5
#define IPMI_NETFN_APP 0x06
#define IPMI_NETFN_OEM 0x3a
#define IPMI_DEBUG 1
@ -265,4 +266,45 @@ int ipmi_bmc_sdr_find(IPMIBmc *b, uint16_t recid,
const struct ipmi_sdr_compact **sdr, uint16_t *nextrec);
void ipmi_bmc_gen_event(IPMIBmc *b, uint8_t *evt, bool log);
#define TYPE_IPMI_BMC_SIMULATOR "ipmi-bmc-sim"
#define IPMI_BMC_SIMULATOR(obj) OBJECT_CHECK(IPMIBmcSim, (obj), \
TYPE_IPMI_BMC_SIMULATOR)
typedef struct IPMIBmcSim IPMIBmcSim;
typedef struct RspBuffer {
uint8_t buffer[MAX_IPMI_MSG_SIZE];
unsigned int len;
} RspBuffer;
static inline void rsp_buffer_set_error(RspBuffer *rsp, uint8_t byte)
{
rsp->buffer[2] = byte;
}
/* Add a byte to the response. */
static inline void rsp_buffer_push(RspBuffer *rsp, uint8_t byte)
{
if (rsp->len >= sizeof(rsp->buffer)) {
rsp_buffer_set_error(rsp, IPMI_CC_REQUEST_DATA_TRUNCATED);
return;
}
rsp->buffer[rsp->len++] = byte;
}
typedef struct IPMICmdHandler {
void (*cmd_handler)(IPMIBmcSim *s,
uint8_t *cmd, unsigned int cmd_len,
RspBuffer *rsp);
unsigned int cmd_len_min;
} IPMICmdHandler;
typedef struct IPMINetfn {
unsigned int cmd_nums;
const IPMICmdHandler *cmd_handlers;
} IPMINetfn;
int ipmi_sim_register_netfn(IPMIBmcSim *s, unsigned int netfn,
const IPMINetfn *netfnd);
#endif