SET_SENSOR_READING is a complex IPMI command (IPMI spec : "35.17 Set Sensor Reading And Event Status Command"). Here is a very minimum framework fitting the Open PowerNV platform needs. This command is used on this platform to set the "System Firmware Progress" sensor and the "Boot Count" sensor.
Signed-off-by: Cédric Le Goater <c...@fr.ibm.com> --- hw/ipmi/ipmi_bmc_sim.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 140 insertions(+), 1 deletion(-) diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c index c3a06d0ac7e4..4f7c74da4b6b 100644 --- a/hw/ipmi/ipmi_bmc_sim.c +++ b/hw/ipmi/ipmi_bmc_sim.c @@ -39,7 +39,7 @@ #define IPMI_CMD_GET_SYS_RESTART_CAUSE 0x09 #define IPMI_NETFN_SENSOR_EVENT 0x04 -#define IPMI_NETFN_SENSOR_EVENT_MAXCMD 0x30 +#define IPMI_NETFN_SENSOR_EVENT_MAXCMD 0x31 #define IPMI_CMD_SET_SENSOR_EVT_ENABLE 0x28 #define IPMI_CMD_GET_SENSOR_EVT_ENABLE 0x29 @@ -48,6 +48,7 @@ #define IPMI_CMD_GET_SENSOR_READING 0x2d #define IPMI_CMD_SET_SENSOR_TYPE 0x2e #define IPMI_CMD_GET_SENSOR_TYPE 0x2f +#define IPMI_CMD_SET_SENSOR_READING 0x30 /* #define IPMI_NETFN_APP 0x06 In ipmi.h */ #define IPMI_NETFN_APP_MAXCMD 0x36 @@ -1794,6 +1795,143 @@ static void get_sensor_type(IPMIBmcSim *ibs, return; } +static void set_sensor_reading(IPMIBmcSim *ibs, + uint8_t *cmd, unsigned int cmd_len, + uint8_t *rsp, unsigned int *rsp_len, + unsigned int max_rsp_len) +{ + IPMISensor *sens; + uint8_t evd1; + uint8_t evd2; + uint8_t evd3; + + IPMI_CHECK_CMD_LEN(5); + if ((cmd[2] > MAX_SENSORS) || + !IPMI_SENSOR_GET_PRESENT(ibs->sensors + cmd[2])) { + rsp[2] = IPMI_CC_REQ_ENTRY_NOT_PRESENT; + goto out; + } + + sens = ibs->sensors + cmd[2]; + + /* Sensor Reading operation */ + switch ((cmd[3]) & 0x3) { + case 0: /* Do not change */ + break; + case 1: /* write given value to sensor reading byte */ + sens->reading = cmd[4]; + break; + case 2: + case 3: + rsp[2] = IPMI_CC_INVALID_DATA_FIELD; + goto out; + } + + /* Deassertion bits operation */ + switch ((cmd[3] >> 2) & 0x3) { + case 0: /* Do not change */ + break; + case 1: /* write given value */ + if (cmd_len > 7) { + sens->deassert_states = cmd[7]; + } + if (cmd_len > 8) { + sens->deassert_states = cmd[8] << 8; + } + + case 2: /* mask on */ + if (cmd_len > 7) { + sens->deassert_states |= cmd[7]; + } + if (cmd_len > 8) { + sens->deassert_states |= cmd[8] << 8; + } + break; + case 3: /* mask off */ + if (cmd_len > 7) { + sens->deassert_states &= cmd[7]; + } + if (cmd_len > 8) { + sens->deassert_states &= (cmd[8] << 8); + } + break; + } + + /* Assertion bits operation */ + switch ((cmd[3] >> 4) & 0x3) { + case 0: /* Do not change */ + break; + case 1: /* write given value */ + if (cmd_len > 5) { + sens->assert_states = cmd[5]; + } + if (cmd_len > 6) { + sens->assert_states = cmd[6] << 8; + } + + case 2: /* mask on */ + if (cmd_len > 5) { + sens->assert_states |= cmd[5]; + } + if (cmd_len > 6) { + sens->assert_states |= cmd[6] << 8; + } + break; + case 3: /* mask off */ + if (cmd_len > 5) { + sens->assert_states &= cmd[5]; + } + if (cmd_len > 6) { + sens->assert_states &= (cmd[6] << 8); + } + break; + } + + evd1 = evd2 = evd3 = 0x0; + if (cmd_len > 9) { + evd1 = cmd[9]; + } + if (cmd_len > 10) { + evd2 = cmd[10]; + } + if (cmd_len > 11) { + evd3 = cmd[11]; + } + + /* Event Data Bytes operation */ + switch ((cmd[3] >> 6) & 0x3) { + case 0: /* Do not use the event data in message */ + evd1 = evd2 = evd3 = 0x0; + break; + case 1: /* Write given values to event data bytes excluding bits + * [3:0] Event Data 1. */ + evd1 &= 0xf0; + break; + case 2: /* Write given values to event data bytes including bits + * [3:0] Event Data 1. */ + break; + case 3: + rsp[2] = IPMI_CC_INVALID_DATA_FIELD; + goto out; + } + + if (IPMI_SENSOR_IS_DISCRETE(sens)) { + unsigned int bit = evd1 & 0xf; + uint16_t mask = (1 << bit); + + if (sens->assert_states & mask & sens->assert_enable) { + gen_event(ibs, cmd[2], 0, evd1, evd2, evd3); + } + + if (sens->deassert_states & mask & sens->deassert_enable) { + gen_event(ibs, cmd[2], 1, evd1, evd2, evd3); + } + } + +out: + return; +} + static const IPMICmdHandler chassis_cmds[IPMI_NETFN_CHASSIS_MAXCMD] = { [IPMI_CMD_GET_CHASSIS_CAPABILITIES] = chassis_capabilities, [IPMI_CMD_GET_CHASSIS_STATUS] = chassis_status, @@ -1814,6 +1952,7 @@ sensor_event_cmds[IPMI_NETFN_SENSOR_EVENT_MAXCMD] = { [IPMI_CMD_GET_SENSOR_READING] = get_sensor_reading, [IPMI_CMD_SET_SENSOR_TYPE] = set_sensor_type, [IPMI_CMD_GET_SENSOR_TYPE] = get_sensor_type, + [IPMI_CMD_SET_SENSOR_READING] = set_sensor_reading }; static const IPMINetfn sensor_event_netfn = { .cmd_nums = IPMI_NETFN_SENSOR_EVENT_MAXCMD, -- 2.1.4