From: Corey Minyard Date: Tue, 6 Sep 2005 22:18:43 +0000 (-0700) Subject: [PATCH] ipmi: add hacks for IPMI chassis poweroff for certain Dell servers X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=168524d673f99550d75af49eb3f5d2850420eb66;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [PATCH] ipmi: add hacks for IPMI chassis poweroff for certain Dell servers This patch allows Dell servers with IPMI controllers that predate IPMI 1.5 to use the standard poweroff or powercycle commands. These systems firmware don't set the chassis capability bit in the Get Device ID, but they do implement the standard poweroff and powercycle commands. Tested on RHEL3 kernel 2.4.21-20.ELsmp on a PowerEdge 2600. The standard ipmi_poweroff driver cannot drive these systems. With this patch, they power off or powercycle as expected. Signed-off-by: Matt Domsch Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c index 1583329ac2ec..170590153df6 100644 --- a/drivers/char/ipmi/ipmi_poweroff.c +++ b/drivers/char/ipmi/ipmi_poweroff.c @@ -62,6 +62,7 @@ MODULE_PARM_DESC(poweroff_control, " Set to 2 to enable power cycle instead of p static unsigned int mfg_id; static unsigned int prod_id; static unsigned char capabilities; +static unsigned char ipmi_version; /* We use our own messages for this operation, we don't let the system allocate them, since we may be in a panic situation. The whole @@ -336,6 +337,25 @@ static void ipmi_poweroff_cpi1 (ipmi_user_t user) return; } +/* + * ipmi_dell_chassis_detect() + * Dell systems with IPMI < 1.5 don't set the chassis capability bit + * but they can handle a chassis poweroff or powercycle command. + */ + +#define DELL_IANA_MFR_ID {0xA2, 0x02, 0x00} +static int ipmi_dell_chassis_detect (ipmi_user_t user) +{ + const char ipmi_version_major = ipmi_version & 0xF; + const char ipmi_version_minor = (ipmi_version >> 4) & 0xF; + const char mfr[3]=DELL_IANA_MFR_ID; + if (!memcmp(mfr, &mfg_id, sizeof(mfr)) && + ipmi_version_major <= 1 && + ipmi_version_minor < 5) + return 1; + return 0; +} + /* * Standard chassis support */ @@ -413,6 +433,9 @@ static struct poweroff_function poweroff_functions[] = { { .platform_type = "CPI1", .detect = ipmi_cpi1_detect, .poweroff_func = ipmi_poweroff_cpi1 }, + { .platform_type = "chassis", + .detect = ipmi_dell_chassis_detect, + .poweroff_func = ipmi_poweroff_chassis }, /* Chassis should generally be last, other things should override it. */ { .platform_type = "chassis", @@ -498,6 +521,7 @@ static void ipmi_po_new_smi(int if_num) prod_id = (halt_recv_msg.msg.data[10] | (halt_recv_msg.msg.data[11] << 8)); capabilities = halt_recv_msg.msg.data[6]; + ipmi_version = halt_recv_msg.msg.data[5]; /* Scan for a poweroff method */