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cxgbe(4): sysctl to reset the temperature/voltage sensor.

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# sysctl dev.<nexus>.<inst>.reset_sensor=1
# sysctl dev.t6nex.0.reset_sensor=1

MFC after:	1 week
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2019-11-24 16:40:54 +00:00
parent dfdbb32093
commit 515a40d5d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=355059
2 changed files with 35 additions and 0 deletions
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1
sys/dev/cxgbe/adapter.h
View file

@ -917,6 +917,7 @@ struct adapter {
int last_op_flags;
int swintr;
int sensor_resets;
struct callout ktls_tick;
};

34
sys/dev/cxgbe/t4_main.c
View file

@ -682,6 +682,7 @@ static int sysctl_autoneg(SYSCTL_HANDLER_ARGS);
static int sysctl_handle_t4_reg64(SYSCTL_HANDLER_ARGS);
static int sysctl_temperature(SYSCTL_HANDLER_ARGS);
static int sysctl_vdd(SYSCTL_HANDLER_ARGS);
static int sysctl_reset_sensor(SYSCTL_HANDLER_ARGS);
static int sysctl_loadavg(SYSCTL_HANDLER_ARGS);
static int sysctl_cctrl(SYSCTL_HANDLER_ARGS);
static int sysctl_cim_ibq_obq(SYSCTL_HANDLER_ARGS);
@ -6264,6 +6265,9 @@ t4_sysctls(struct adapter *sc)
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "temperature", CTLTYPE_INT |
CTLFLAG_RD, sc, 0, sysctl_temperature, "I",
"chip temperature (in Celsius)");
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "reset_sensor", CTLTYPE_INT |
CTLFLAG_RW, sc, 0, sysctl_reset_sensor, "I",
"reset the chip's temperature sensor.");
SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "loadavg", CTLTYPE_STRING |
CTLFLAG_RD, sc, 0, sysctl_loadavg, "A",
@ -7454,6 +7458,36 @@ sysctl_vdd(SYSCTL_HANDLER_ARGS)
return (sysctl_handle_int(oidp, &sc->params.core_vdd, 0, req));
}
static int
sysctl_reset_sensor(SYSCTL_HANDLER_ARGS)
{
struct adapter *sc = arg1;
int rc, v;
uint32_t param, val;
v = sc->sensor_resets;
rc = sysctl_handle_int(oidp, &v, 0, req);
if (rc != 0 || req->newptr == NULL || v <= 0)
return (rc);
if (sc->params.fw_vers < FW_VERSION32(1, 24, 7, 0) ||
chip_id(sc) < CHELSIO_T5)
return (ENOTSUP);
rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4srst");
if (rc)
return (rc);
param = (V_FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
V_FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_DIAG) |
V_FW_PARAMS_PARAM_Y(FW_PARAM_DEV_DIAG_RESET_TMP_SENSOR));
val = 1;
rc = -t4_set_params(sc, sc->mbox, sc->pf, 0, 1, &param, &val);
end_synchronized_op(sc, 0);
if (rc == 0)
sc->sensor_resets++;
return (rc);
}
static int
sysctl_loadavg(SYSCTL_HANDLER_ARGS)
{