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Commit 7d8ba966 authored by Corey Minyard's avatar Corey Minyard Committed by Linus Torvalds
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[PATCH] IPMI: add pigeonpoint poweroff 



X86 boards generally use ACPI for the power management interactions with the
BMC.  However, non-x86 boards need some help.  This patch adds the help for
the Motorola PigeonPoint-based IPMCs.

Signed-off-by: default avatarJoseph Barnett <jbarnett@motorola.com>
Signed-off-by: default avatarCorey Minyard <minyard@acm.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent b361e27b

drivers/char/ipmi/ipmi_poweroff.c

+51 −1
Original line number Diff line number Diff line
@@ -176,6 +176,42 @@ static int ipmi_request_in_rc_mode(ipmi_user_t user, 
#define IPMI_ATCA_GET_ADDR_INFO_CMD	0x01

#define IPMI_PICMG_ID			0



#define IPMI_NETFN_OEM				0x2e

#define IPMI_ATCA_PPS_GRACEFUL_RESTART		0x11

#define IPMI_ATCA_PPS_IANA			"\x00\x40\x0A"

#define IPMI_MOTOROLA_MANUFACTURER_ID		0x0000A1

#define IPMI_MOTOROLA_PPS_IPMC_PRODUCT_ID	0x0051



static void (*atca_oem_poweroff_hook)(ipmi_user_t user) = NULL;



static void pps_poweroff_atca (ipmi_user_t user)

{

        struct ipmi_system_interface_addr smi_addr;

        struct kernel_ipmi_msg            send_msg;

        int                               rv;

        /*

         * Configure IPMI address for local access

         */

        smi_addr.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;

        smi_addr.channel = IPMI_BMC_CHANNEL;

        smi_addr.lun = 0;



        printk(KERN_INFO PFX "PPS powerdown hook used");



        send_msg.netfn = IPMI_NETFN_OEM;

        send_msg.cmd = IPMI_ATCA_PPS_GRACEFUL_RESTART;

        send_msg.data = IPMI_ATCA_PPS_IANA;

        send_msg.data_len = 3;

        rv = ipmi_request_in_rc_mode(user,

                                  (struct ipmi_addr *) &smi_addr,

                                   &send_msg);

        if (rv && rv != IPMI_UNKNOWN_ERR_COMPLETION_CODE) {

                printk(KERN_ERR PFX "Unable to send ATCA ,"

                       " IPMI error 0x%x\n", rv);

        }

	return;

}



static int ipmi_atca_detect (ipmi_user_t user)

{

	struct ipmi_system_interface_addr smi_addr;
@@ -201,6 +237,13 @@ static int ipmi_atca_detect (ipmi_user_t user) 
	rv = ipmi_request_wait_for_response(user,

					    (struct ipmi_addr *) &smi_addr,

					    &send_msg);



        printk(KERN_INFO PFX "ATCA Detect mfg 0x%X prod 0x%X\n", mfg_id, prod_id);

        if((mfg_id == IPMI_MOTOROLA_MANUFACTURER_ID)

            && (prod_id == IPMI_MOTOROLA_PPS_IPMC_PRODUCT_ID)) {

		printk(KERN_INFO PFX "Installing Pigeon Point Systems Poweroff Hook\n");

		atca_oem_poweroff_hook = pps_poweroff_atca;

	}

	return !rv;

}
@@ -234,12 +277,19 @@ static void ipmi_poweroff_atca (ipmi_user_t user) 
	rv = ipmi_request_in_rc_mode(user,

				     (struct ipmi_addr *) &smi_addr,

				     &send_msg);

	if (rv) {

        /** At this point, the system may be shutting down, and most

         ** serial drivers (if used) will have interrupts turned off

         ** it may be better to ignore IPMI_UNKNOWN_ERR_COMPLETION_CODE

         ** return code

         **/

        if (rv && rv != IPMI_UNKNOWN_ERR_COMPLETION_CODE) {

		printk(KERN_ERR PFX "Unable to send ATCA powerdown message,"

		       " IPMI error 0x%x\n", rv);

		goto out;

	}



	if(atca_oem_poweroff_hook)

		return atca_oem_poweroff_hook(user);

 out:

	return;

}