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ipmi:ssif: Add a module parm to specify that SMBus alerts don't work 

They are broken on some platforms, this gives people a chance to work
around it until the firmware is fixed.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard 2015-08-27 15:49:18 -05:00
parent acbd9ae70a
commit bf2d087749
1 changed files with 8 additions and 0 deletions
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8
drivers/char/ipmi/ipmi_ssif.c
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@ -1136,6 +1136,10 @@ module_param_array(slave_addrs, int, &num_slave_addrs, 0);
MODULE_PARM_DESC(slave_addrs,
"The default IPMB slave address for the controller.");
static bool alerts_broken;
module_param(alerts_broken, bool, 0);
MODULE_PARM_DESC(alerts_broken, "Don't enable alerts for the controller.");
/*
* Bit 0 enables message debugging, bit 1 enables state debugging, and
* bit 2 enables timing debugging. This is an array indexed by
@ -1582,6 +1586,10 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
ssif_info->global_enables |= IPMI_BMC_EVT_MSG_BUFF;
}
/* Some systems don't behave well if you enable alerts. */
if (alerts_broken)
goto found;
msg[0] = IPMI_NETFN_APP_REQUEST << 2;
msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
msg[2] = ssif_info->global_enables | IPMI_BMC_RCV_MSG_INTR;