From da0d0f92ae3c401f47c1e0107d0628a70f0542b3 Mon Sep 17 00:00:00 2001 From: Joel Stanley Date: Thu, 5 Feb 2015 13:40:03 +1030 Subject: ipmi: Set BMC Global Enables to enable notifications For OEM events including graceful power down and BMC PNOR access we want to receive notification whenever a message is ready to be read from the BMC. This requires the Event Message Buffer flag to be enabled. This is the equivalent of doing mc setenables event_msg=on with ipmitool, except the message must come from the BT interface in order to have permission to modify the flags. Signed-off-by: Joel Stanley Signed-off-by: Stewart Smith --- platforms/astbmc/common.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) (limited to 'platforms') diff --git a/platforms/astbmc/common.c b/platforms/astbmc/common.c index f9c988d..fc4c776 100644 --- a/platforms/astbmc/common.c +++ b/platforms/astbmc/common.c @@ -44,6 +44,51 @@ void astbmc_ext_irq(unsigned int chip_id __unused) bt_irq(); } +static void astbmc_ipmi_error(struct ipmi_msg *msg) +{ + prlog(PR_DEBUG, "ASTBMC: error sending msg. cc = %02x\n", msg->cc); + + ipmi_free_msg(msg); +} + +static void astbmc_ipmi_setenables(void) +{ + struct ipmi_msg *msg; + + struct { + uint8_t oem2_en : 1; + uint8_t oem1_en : 1; + uint8_t oem0_en : 1; + uint8_t reserved : 1; + uint8_t sel_en : 1; + uint8_t msgbuf_en : 1; + uint8_t msgbuf_full_int_en : 1; + uint8_t rxmsg_queue_int_en : 1; + } data; + + memset(&data, 0, sizeof(data)); + + /* The spec says we need to read-modify-write to not clobber + * the state of the other flags. These are set on by the bmc */ + data.rxmsg_queue_int_en = 1; + data.sel_en = 1; + + /* These are the ones we want to set on */ + data.msgbuf_en = 1; + + msg = ipmi_mkmsg_simple(IPMI_SET_ENABLES, &data, sizeof(data)); + if (!msg) { + prlog(PR_ERR, "ASTBMC: failed to set enables\n"); + return; + } + + msg->error = astbmc_ipmi_error; + + ipmi_queue_msg(msg); + +} + + void astbmc_init(void) { /* Initialize PNOR/NVRAM */ @@ -59,6 +104,9 @@ void astbmc_init(void) /* As soon as IPMI is up, inform BMC we are in "S0" */ ipmi_set_power_state(IPMI_PWR_SYS_S0_WORKING, IPMI_PWR_NOCHANGE); + /* Enable IPMI OEM message interrupts */ + astbmc_ipmi_setenables(); + /* Setup UART console for use by Linux via OPAL API */ if (!dummy_console_enabled()) uart_setup_opal_console(); -- cgit v1.1