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...@kaod.org>
---
hw/ipmi/ipmi_bmc_sim.c | 133 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
diff --git a/hw/ipmi/ipmi_bmc_sim.c b/hw/ipmi/ipmi_bmc_sim.c
index 155561d06614..26036b20d4df 100644
--- a/hw/ipmi/ipmi_bmc_sim.c
+++ b/hw/ipmi/ipmi_bmc_sim.c
@@ -45,6 +45,7 @@
#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 */
@@ -1739,6 +1740,137 @@ static void get_sensor_type(IPMIBmcSim *ibs,
rsp_buffer_push(rsp, sens->evt_reading_type_code);
}
+static void set_sensor_reading(IPMIBmcSim *ibs,
+ uint8_t *cmd, unsigned int cmd_len,
+ RspBuffer *rsp)
+{
+ IPMISensor *sens;
+ uint8_t evd1;
+ uint8_t evd2;
+ uint8_t evd3;
+
+ if ((cmd[2] > MAX_SENSORS) ||
+ !IPMI_SENSOR_GET_PRESENT(ibs->sensors + cmd[2])) {
+ rsp_buffer_set_error(rsp, IPMI_CC_REQ_ENTRY_NOT_PRESENT);
+ return;
+ }
+
+ 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_buffer_set_error(rsp, IPMI_CC_INVALID_DATA_FIELD);
+ return;
+ }
+
+ /* 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_buffer_set_error(rsp, IPMI_CC_INVALID_DATA_FIELD);
+ return;
+ }
+
+ 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);
+ }
+ }
+}
static const IPMICmdHandler chassis_cmds[] = {
[IPMI_CMD_GET_CHASSIS_CAPABILITIES] = { chassis_capabilities },
@@ -1759,6 +1891,7 @@ static const IPMICmdHandler sensor_event_cmds[] = {
[IPMI_CMD_GET_SENSOR_READING] = { get_sensor_reading, 3 },
[IPMI_CMD_SET_SENSOR_TYPE] = { set_sensor_type, 5 },
[IPMI_CMD_GET_SENSOR_TYPE] = { get_sensor_type, 3 },
+ [IPMI_CMD_SET_SENSOR_READING] = { set_sensor_reading, 5 },
};
static const IPMINetfn sensor_event_netfn = {
.cmd_nums = ARRAY_SIZE(sensor_event_cmds),
--
2.7.4
