diff options
Diffstat (limited to 'kern/bmcpanic-2.4.18.patch')
| -rw-r--r-- | kern/bmcpanic-2.4.18.patch | 997 |
1 files changed, 997 insertions, 0 deletions
diff --git a/kern/bmcpanic-2.4.18.patch b/kern/bmcpanic-2.4.18.patch new file mode 100644 index 0000000..9eae959 --- /dev/null +++ b/kern/bmcpanic-2.4.18.patch @@ -0,0 +1,997 @@ +--- linux-2.4.18-orig/drivers/char/misc.c Fri Nov 2 20:46:47 2001 ++++ linux-2.4.18/drivers/char/misc.c Thu Feb 27 14:28:39 2003 +@@ -70,6 +70,7 @@ + extern void gfx_register(void); + #endif + extern void streamable_init(void); ++extern int bmc_panic_init(void); + extern int rtc_DP8570A_init(void); + extern int rtc_MK48T08_init(void); + extern int ds1286_init(void); +@@ -264,6 +265,9 @@ + #endif + #ifdef CONFIG_PMAC_PBOOK + pmu_device_init(); ++#endif ++#ifdef CONFIG_BMCPANIC ++ bmc_panic_init(); + #endif + #ifdef CONFIG_SGI_NEWPORT_GFX + gfx_register (); +--- linux-2.4.18-orig/kernel/panic.c Sun Sep 30 15:26:08 2001 ++++ linux-2.4.18/kernel/panic.c Thu Feb 27 14:28:39 2003 +@@ -17,6 +17,10 @@ + #include <linux/sysrq.h> + #include <linux/interrupt.h> + ++char *panic_string; ++#ifdef CONFIG_BMCPANIC ++ extern void bmcpanic_action(void); ++#endif + asmlinkage void sys_sync(void); /* it's really int */ + + int panic_timeout; +@@ -53,6 +57,7 @@ + va_start(args, fmt); + vsprintf(buf, fmt, args); + va_end(args); ++ panic_string = buf; + printk(KERN_EMERG "Kernel panic: %s\n",buf); + if (in_interrupt()) + printk(KERN_EMERG "In interrupt handler - not syncing\n"); +@@ -81,7 +86,11 @@ + * choosing not too. It might crash, be corrupt or do + * more harm than good for other reasons. + */ +- machine_restart(NULL); ++#ifdef CONFIG_BMCPANIC ++ bmcpanic_action(); ++#else ++ machine_restart(NULL); ++#endif + } + #ifdef __sparc__ + { +--- linux-2.4.18-orig/kernel/ksyms.c Mon Feb 25 14:38:13 2002 ++++ linux-2.4.18/kernel/ksyms.c Thu Feb 27 14:29:30 2003 +@@ -60,6 +60,7 @@ + + extern void *sys_call_table; + ++extern char *panic_string; + extern struct timezone sys_tz; + extern int request_dma(unsigned int dmanr, char * deviceID); + extern void free_dma(unsigned int dmanr); +@@ -559,3 +560,5 @@ + + EXPORT_SYMBOL(tasklist_lock); + EXPORT_SYMBOL(pidhash); ++EXPORT_SYMBOL(panic_notifier_list); ++EXPORT_SYMBOL(panic_string); +--- linux-2.4.18-orig/Documentation/Configure.help Mon Feb 25 14:37:51 2002 ++++ linux-2.4.18/Documentation/Configure.help Thu Feb 27 14:28:39 2003 +@@ -16277,6 +16277,20 @@ + + If unsure, say N. + ++BMC Panic Handler ++CONFIG_BMCPANIC ++ If you say Y here, additional functions will be added to the ++ panic handler via the panic notifier list. ++ ++ If your system has IPMI support and a BMC (Baseboard Management ++ Controller) on the motherboard, then the following additional ++ functions will be performed if a panic occurs: ++ - Write an OS Critical Stop message to the firmware System Event Log ++ - Turn on the Critical LED on the Telco Alarms panel (if present) ++ - Send a BMC LAN alert via SNMP to a network operations center, ++ if the firmware Platform Event Filter configuration is set to ++ enable this. ++ + Cobalt Networks support + CONFIG_COBALT + Support for Cobalt Networks x86-based servers. +--- linux-2.4.18-orig/drivers/char/Makefile Mon Feb 25 14:37:57 2002 ++++ linux-2.4.18/drivers/char/Makefile Thu Feb 27 14:28:39 2003 +@@ -209,6 +209,9 @@ + obj-y += ftape/ftape.o + endif + ++bmc_panic-objs := bmc_ipmi.o bmc_selmsg.o ++obj-$(CONFIG_BMCPANIC) += bmc_panic.o ++ + obj-$(CONFIG_H8) += h8.o + obj-$(CONFIG_PPDEV) += ppdev.o + obj-$(CONFIG_DZ) += dz.o +@@ -252,6 +255,9 @@ + ./conmakehash $(FONTMAPFILE) > consolemap_deftbl.c + + consolemap_deftbl.o: consolemap_deftbl.c $(TOPDIR)/include/linux/types.h ++ ++bmc_panic.o: $(bmc_panic-objs) ++ $(LD) -r -o $@ $(bmc_panic-objs) + + .DELETE_ON_ERROR: + +--- linux-2.4.18-orig/drivers/char/Config.in Mon Feb 25 14:37:57 2002 ++++ linux-2.4.18/drivers/char/Config.in Thu Feb 27 14:28:39 2003 +@@ -97,6 +97,10 @@ + if [ "$CONFIG_UNIX98_PTYS" = "y" ]; then + int 'Maximum number of Unix98 PTYs in use (0-2048)' CONFIG_UNIX98_PTY_COUNT 256 + fi ++bool 'BMC Panic Handler' CONFIG_BMCPANIC ++if [ "$CONFIG_BMCPANIC" != "n" ]; then ++ int ' Action after Panic (0=reset,1=power down,2=power cycle)' CONFIG_BMCPANIC_ACTION 0 ++fi + if [ "$CONFIG_PARPORT" != "n" ]; then + dep_tristate 'Parallel printer support' CONFIG_PRINTER $CONFIG_PARPORT + if [ "$CONFIG_PRINTER" != "n" ]; then +--- /dev/null Fri Mar 23 23:37:44 2001 ++++ linux-2.4.18/drivers/char/bmc_ipmi.c Thu Feb 27 14:28:39 2003 +@@ -0,0 +1,531 @@ ++/* ++ * bmc_ipmi.c ++ * ++ * This code is needed to run a streamlined IPMI KCS command when ++ * the rest of the system may be dead (panic time). It must wait ++ * for completion of the receive function also. ++ * There will be zero or one BMC, with KCS as a minimum and perhaps ++ * other interfaces, so doing KCS to a default BMC LUN is valid here. ++ * ++ * Note that CONFIG_BMCPANIC should be =y (rather than =m) to ++ * ensure that this handler is loaded early enough to cover boot ++ * time panic conditions. CONFIG_BMCPANIC_ACTION can only be ++ * defined if CONFIG_BMCPANIC=y. ++ * ++ * Author: Andy Cress <arcress at users.sourceforge.net> ++ * ++ * Change History: ++ * 01/31/03 Andy Cress - created from valinux ipmi_kcs driver v2.1 ++ * ++ * Copyright 2003 Intel Corp. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * ++ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED ++ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, ++ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS ++ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ++ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR ++ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE ++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 675 Mass Ave, Cambridge, MA 02139, USA. ++ */ ++#include <linux/config.h> ++#include <linux/types.h> ++#include <linux/errno.h> ++#include <linux/kernel.h> ++#include <asm/io.h> ++#include <asm/uaccess.h> ++#include <asm/system.h> ++#include <asm/semaphore.h> ++#include <linux/delay.h> ++ ++#define uchar unsigned char ++ ++#define KCS_READY_DELAY 5 ++#define BMC_RESPONSE_DELAY 5 ++#define BMC_RETRY_DELAY 60 ++ ++#if defined(__ia64__) ++#define KCS_BASE 0x8a2 ++#else ++#define KCS_BASE 0xca2 ++#endif ++#define KCS_STATUS_REG (KCS_BASE + 1) ++#define KCS_COMMAND_REG (KCS_BASE + 1) ++#define KCS_DATAIN_REG (KCS_BASE + 0) ++#define KCS_DATAOUT_REG (KCS_BASE + 0) ++ ++/* State bits based on S1 & S0 below */ ++#define KCS_STATE_MASK 0xC0 ++#define KCS_IDLE_STATE 0x00 ++#define KCS_READ_STATE 0x40 ++#define KCS_WRITE_STATE 0x80 ++#define KCS_ERROR_STATE 0xC0 ++ ++#define KCS_IBF 0x02 ++#define KCS_OBF 0x01 ++#define KCS_SMS_ATN 0x04 ++ ++#define SEND_INIT 1 ++#define SEND_START 2 ++#define SEND_NEXT 3 ++#define SEND_END 4 ++#define RECV_START 5 ++#define RECV_INIT 6 ++#define RECV_NEXT 7 ++#define RECV_INIT2 8 ++#define RECV_END 9 ++#define END 10 ++#define ERROR 0 ++ ++/* SMS Transfer Stream Control Codes */ ++#define GET_STATUS_ABORT 0x60 ++#define WRITE_START 0x61 ++#define WRITE_END 0x62 ++#define KCS_READ 0x68 ++ ++#define MAX_INVALID_RESPONSE_COUNT 2 ++#define MIN_BMC_RESPONSE_SIZE 3 ++#define MAX_IMB_PACKET_SIZE 33 ++#define MAX_BMC_RESPONSE_SIZE (MIN_BMC_RESPONSE_SIZE + MAX_IMB_PACKET_SIZE) ++#define MAX_XFER_LENGTH (MAX_IMB_PACKET_SIZE * 2) ++ ++#define MAX_BUFFER_SIZE 64 ++ ++typedef struct bmc_response ++ { ++ unsigned char lun :2; ++ unsigned char netfn :6; ++ unsigned char cmd; ++ unsigned char cc; ++ unsigned char data[1]; ++ }BMC_RESPONSE; ++ ++typedef struct bmc_request ++ { ++ unsigned char lun :2; ++ unsigned char netfn :6; ++ unsigned char cmd; ++ unsigned char data[1]; ++ }BMC_REQUEST; ++ ++/* GET_DEVICE_ID RESPONSE (11 bytes) */ ++typedef struct device_id_response ++ { ++ unsigned char device_id; ++ ++ unsigned char device_revision :4; ++ unsigned char reserved :3; ++ unsigned char provides_sdr :1; ++ ++ unsigned char major_firmware_revision :7; ++ #define NORMAL_OPERATION 0 ++ #define DEVICE_BUSY 1 ++ unsigned char device_available :1; ++ ++ unsigned char minor_firmware_revision; ++ unsigned char ipmi_version_major :4; ++ unsigned char ipmi_version_minor :4; ++ ++ unsigned char supports_sensor_device :1; ++ unsigned char supports_sdr_device :1; ++ unsigned char supports_sel_device :1; ++ unsigned char supports_fru_device :1; ++ unsigned char supports_ipmb_receiver :1; ++ unsigned char supports_ipmb_generator :1; ++ unsigned char supports_bridge :1; ++ unsigned char supports_chassis_device :1; ++ ++ unsigned char manufacturer_id1; ++ unsigned char manufacturer_id2; ++ unsigned char manufacturer_id3; ++ unsigned short product_id; ++ } DEVICE_ID_RESPONSE; ++ ++/*************************************/ ++ ++#if defined(__ia64__) ++static char kcs_new = 1; /* don't even try old kcs */ ++#else ++static char kcs_new = 0; ++#endif ++DECLARE_MUTEX(kcs_sem); ++ ++/*************************************/ ++ ++/* ++ * kcs chip mashing stuff ++ */ ++static int wait_while_ibf(void) ++{ ++ unsigned char status_byte; ++ ++ status_byte = inb_p(KCS_STATUS_REG); ++ if ((status_byte & KCS_IBF) == 0) return (0); ++ mdelay(KCS_READY_DELAY); ++ status_byte = inb_p(KCS_STATUS_REG); ++ if (status_byte & KCS_IBF) return (-1); ++ return (0); ++} ++ ++static int is_obf_set(void) ++{ ++ unsigned char cs; ++ cs = inb_p(KCS_STATUS_REG); ++ return ((cs & KCS_OBF) == KCS_OBF); ++} ++ ++static int wait_until_obf(void) ++{ ++ int retries = 0; ++ ++ while (retries < 2) { ++ if (is_obf_set()) return (0); ++ mdelay(KCS_READY_DELAY); ++ retries++; ++ } ++ return (-ETIMEDOUT); ++} ++ ++static unsigned char get_kcs_state(void) ++{ ++ unsigned char cs; ++ ++ cs = inb_p(KCS_STATUS_REG); ++ return (cs & KCS_STATE_MASK); ++} ++ ++static unsigned char read_kcs_data(void) ++{ ++ unsigned char data; ++ ++ data = inb_p(KCS_DATAOUT_REG); ++ return (data); ++} ++ ++static void write_kcs_data(unsigned char data) ++{ ++ outb_p(data, KCS_DATAIN_REG); ++} ++ ++static void write_kcs_cmd(unsigned char cmd) ++{ ++ outb_p(cmd, KCS_COMMAND_REG); ++} ++ ++static int clear_obf(void) ++{ ++ read_kcs_data(); ++ return (0); ++} ++ ++static int kcs_xfer(BMC_REQUEST * request, int request_len, ++ BMC_RESPONSE * response, int *response_len) ++{ ++ unsigned char *xmit_buffer, *recv_buffer; ++ int i = 0, rc = 0, state = SEND_INIT, bad = 0; ++ ++ xmit_buffer = (unsigned char *) request; ++ recv_buffer = (unsigned char *) response; ++ ++ while (1) { ++ if (state == END) ++ break; ++ else if (bad > 2) { ++ printk("[ipmi_panic] Maximum retries exceeded.\n"); ++ rc = -EIO; ++ break; ++ } ++ switch (state) { ++ case SEND_INIT: ++ { ++ i = 0; ++ state = SEND_START; ++ wait_while_ibf(); ++ if (kcs_new) clear_obf(); ++ } ++ case SEND_START: ++ { ++ state = SEND_NEXT; ++ write_kcs_cmd(WRITE_START); ++ wait_while_ibf(); ++ } ++ case SEND_NEXT: ++ { ++ if (i == (request_len - 1)) { ++ state = SEND_END; ++ break; ++ } ++ if (get_kcs_state() != KCS_WRITE_STATE) { ++ state = ERROR; ++ break; ++ } ++ write_kcs_data(xmit_buffer[i++]); ++ wait_while_ibf(); ++ if (kcs_new) clear_obf(); ++ break; ++ } ++ case SEND_END: ++ { ++ if (!kcs_new) wait_while_ibf(); ++ write_kcs_cmd(WRITE_END); ++ wait_while_ibf(); ++ if (get_kcs_state() != KCS_WRITE_STATE) { ++ state = ERROR; ++ break; ++ } ++ if (kcs_new) clear_obf(); ++ write_kcs_data(xmit_buffer[i++]); ++ wait_while_ibf(); ++ state = RECV_START; ++ } ++ case RECV_START: ++ { ++ switch (get_kcs_state()) { ++ case KCS_ERROR_STATE: ++ { ++ state = ERROR; ++ break; ++ } ++ case KCS_WRITE_STATE: ++ case KCS_IDLE_STATE: ++ { ++ mdelay(BMC_RESPONSE_DELAY); ++ break; ++ } ++ case KCS_READ_STATE: ++ { ++ i = 0; ++ memset(recv_buffer, 0, ++ *response_len); ++ state = RECV_INIT; ++ break; ++ } ++ } ++ break; ++ } ++ case RECV_INIT: ++ { ++ switch (get_kcs_state()) { ++ case KCS_ERROR_STATE: ++ case KCS_WRITE_STATE: ++ { ++ state = ERROR; ++ break; ++ } ++ case KCS_IDLE_STATE: ++ { ++ state = RECV_END; ++ break; ++ } ++ case KCS_READ_STATE: ++ { ++ if (is_obf_set()) ++ state = RECV_NEXT; ++ else mdelay(1); ++ break; ++ } ++ default: ++ { ++ mdelay(1); ++ break; ++ } ++ } ++ break; ++ } ++ case RECV_NEXT: ++ { ++ if (i >= *response_len) { ++ rc = -EOVERFLOW; ++ state = ERROR; ++ break; ++ } ++ recv_buffer[i++] = read_kcs_data(); ++ if (!kcs_new) wait_while_ibf(); ++ write_kcs_data(KCS_READ); ++ if (kcs_new) wait_while_ibf(); ++ state = RECV_INIT2; ++ break; ++ } ++ case RECV_INIT2: ++ { ++ switch (get_kcs_state()) { ++ case KCS_ERROR_STATE: ++ case KCS_WRITE_STATE: ++ { ++ state = ERROR; ++ break; ++ } ++ case KCS_IDLE_STATE: ++ { ++ if (kcs_new) { ++ if (wait_until_obf() == 0) { ++ clear_obf(); ++ state = RECV_END; ++ } else { ++ state = ERROR; ++ } ++ } else { ++ state = RECV_END; ++ } ++ break; ++ } ++ case KCS_READ_STATE: ++ { ++ if (kcs_new) { ++ if (wait_until_obf() == 0) ++ state = RECV_NEXT; ++ else state = ERROR; ++ } else { ++ if (is_obf_set()) ++ state = RECV_NEXT; ++ } ++ break; ++ } ++ } ++ break; ++ } ++ case RECV_END: ++ { ++ if ((i < MIN_BMC_RESPONSE_SIZE) || ++ (response->netfn != (request->netfn | 0x01)) ++ || (response->cmd != request->cmd)) { ++ if (request->cmd == 0x01 && ++ request->netfn == 0x06 && ++ response->netfn == 0x2b) /*ok*/; ++ else { /* flag the error */ ++ printk("[ipmi_panic] Request/Response CMD/NETFN mismatch error\n"); ++ ++ printk(" i=%d, RQcmd/RQnetfn=0x%x/0x%x,RScmd/RSnetfn=0x%x/0x%x\n", ++ i, request->cmd, request->netfn, ++ response->cmd, response->netfn); ++ mdelay(BMC_RETRY_DELAY); ++ bad++; ++ state = SEND_INIT; ++ break; ++ } ++ } ++ ++ *response_len = i; ++ rc = 0; ++ state = END; ++ break; ++ } ++ case ERROR: ++ default: ++ { ++ printk("[ipmi_panic] BMC in bad state (%d) cmd=%02x. Retrying transfer\n", state,request->cmd); ++ mdelay(BMC_RETRY_DELAY); ++ bad++; ++ state = SEND_INIT; ++ break; ++ } ++ } ++ } ++ return (rc); ++} ++ ++int ipmi_send_recv(uchar cmd, uchar netfn, uchar lun, uchar *sbuf, int slen, ++ uchar *rbuf, int rlen, int *nret, uchar *cc) ++{ ++ uchar bmc_outbuf[MAX_BUFFER_SIZE]; ++ uchar bmc_inbuf[MAX_BUFFER_SIZE]; ++ BMC_REQUEST *bmc_req; ++ BMC_RESPONSE *bmc_resp; ++ int bmc_outlen; ++ int bmc_inlen; ++ int rc = 0; ++ ++ if (kcs_new == 2) return (-ENXIO); ++ ++ memset(bmc_outbuf,0, sizeof(bmc_outbuf)); ++ memset(bmc_inbuf,0, sizeof(bmc_inbuf)); ++ bmc_req = (BMC_REQUEST *)bmc_outbuf; ++ bmc_resp = (BMC_RESPONSE *)bmc_inbuf; ++ bmc_req->cmd = cmd; ++ bmc_req->netfn = netfn; ++ bmc_req->lun = lun; ++ bmc_outlen = slen + 2; ++ bmc_inlen = sizeof(bmc_inbuf); ++ if (slen > 0) memcpy(bmc_req->data,sbuf,slen); ++ ++ rc = kcs_xfer(bmc_req, bmc_outlen, bmc_resp, &bmc_inlen); ++ if (bmc_resp->cc == 0xcc) /* flaky NMI fixup */ ++ rc = kcs_xfer(bmc_req, bmc_outlen, bmc_resp, &bmc_inlen); /*retry*/ ++ ++ /* copy the response */ ++ *cc = bmc_resp->cc; ++ if (bmc_inlen > rlen) bmc_inlen = rlen; ++ *nret = bmc_inlen; ++ if (bmc_inlen > 0) memcpy(rbuf,bmc_resp->data,bmc_inlen); ++ ++ return(rc); ++} ++ ++extern void init_SEL(void); ++extern void cleanup_SEL(void); ++ ++int bmc_panic_init(void) ++{ ++ int i, rc; ++ uchar cc; ++ uchar bdev[16]; ++ DEVICE_ID_RESPONSE *dev_id; ++ ++ printk("bmc_panic ipmi driver at io 0x%x\n", KCS_BASE); ++ if ((inb_p(KCS_STATUS_REG) == 0xFF) && ++ (inb_p(KCS_DATAIN_REG) == 0xFF)) { ++ printk("--KCS ISA window not present, exiting.\n"); ++ return (-ENXIO); ++ } ++ ++ /* Get Device ID */ ++ rc = ipmi_send_recv(0x01,0x06,0,NULL,0,bdev,sizeof(bdev),&i,&cc); ++ if (rc != 0) kcs_new = 2; /* bad */ ++ else if (cc != 0) kcs_new = 2; /* bad */ ++ else ++ { ++ dev_id = (DEVICE_ID_RESPONSE *)&bdev[0]; ++ printk("--BMC version %x.%x, IPMI version %d.%d\n", ++ dev_id->major_firmware_revision, ++ dev_id->minor_firmware_revision, ++ dev_id->ipmi_version_major, dev_id->ipmi_version_minor); ++ if ((dev_id->ipmi_version_major == 0) && ++ (dev_id->ipmi_version_minor == 9)) { ++ printk("--Using legacy KCS state machine\n"); ++ kcs_new = 0; ++ } else { ++ printk("--Using new KCS state machine\n"); ++ kcs_new = 1; ++ } ++ } ++ init_SEL(); ++ ++ return(rc); ++} ++ ++#ifdef MODULE ++int init_module(void) ++{ ++ return (bmc_panic_init()); ++} ++ ++void cleanup_module(void) ++{ ++ printk("bmc_panic: Driver shutting down.\n"); ++ cleanup_SEL(); ++} ++#endif ++ ++/* end bmc_ipmi.c */ +--- /dev/null Fri Mar 23 23:37:44 2001 ++++ linux-2.4.18/drivers/char/bmc_selmsg.c Thu Feb 27 14:28:39 2003 +@@ -0,0 +1,269 @@ ++/* ++ * bmc_selmsg.c ++ * routines to send IMB and BMC requests to the SEL and alarms panel. ++ * ++ * 05/07/01 Todd Davis - created ++ * 09/17/01 Andy Cress - some cleanup ++ * 09/26/01 Andy Cress - added setAlarmLED, changed notifier priority ++ * 10/05/01 Andy Cress - fixed setAlarmLED, changed OEM bytes in panic ++ * 10/08/01 Andy Cress - added getAlarmLED ++ * 10/09/01 Andy Cress - save 3 chars of panic_string in SEL ++ * 10/25/01 Andy Cress - fixed confusion w DEBUG macro & LINUX_DEBUG ++ * 11/05/01 Andy Cress - adapted to open source driver calls ++ * 11/14/01 Andy Cress - code complete, see also bmc_ipmi.c ++ * 01/15/02 Andy Cress - changed to show BMC_PANIC tags ++ * 03/22/02 Andy Cress - changed printk messages ++ * 04/16/02 Andy Cress - added bmcpanic_action() routine ++ * 06/04/02 Andy Cress - added bmc_poweroff() routine ++ * 02/26/02 Andy Cress - major rework to use ipmi_send_recv, trim bloat ++ */ ++#include <linux/string.h> ++#include <linux/kernel.h> ++#include <linux/notifier.h> /* Routines to manage notifier chains for passing ++ * status changes to any interested routines. */ ++ ++/////////////////////////////////////////////////////////// ++// Global definitions ++////////////////////////////////////////////////////////// ++#define uchar unsigned char ++#define ulong unsigned long ++ ++#define BMC_SA 0x20 // BMC slave address ++#define NETFN_CHAS 0x00 ++#define NETFN_SENS_EVENT 0x04 ++#define NETFN_APP 0x06 ++#define NETFN_STORAGE 0x0A ++ ++#define CHASSIS_CTL 0x02 ++#define GET_SEL_INFO 0x40 ++#define PLATFORM_EVENT 0x02 ++#define KERNEL_SENSOR_ID 0x21 ++ ++/* Defines for the Alarms Panel */ ++#define MASTER_WRITE_READ 0x52 // Command from IPMI 1.5 Table 38-8 ++#define ALARMS_PANEL_WRITE 0x40 // I2C Address 0x40 write to front panel ++#define ALARMS_PANEL_READ 0x41 // I2C Address 0x41 read from front panel ++#define PRIVATE_BUS_ID 0x03 // TAM 8574 lives on 2ndary private bus ++ ++// See Table 36-3 for sensor types - 20h for OS critical stop ++// See Table 36-1 for event types - 6Fh Sensor Specific ++// discrete sensor class ++// See Table 23-6/36-3 for event data ++// data1 - 00b 00b 0001b (runtime) 0000b (initialization stop) ++// data2 - ffh (unspecified) ++// data3 - ffh (unspecified) ++ ++/////////////////////////////////////////////////////////// ++// Global variables ++////////////////////////////////////////////////////////// ++static int fIPMIok = 1; /* Are IPMI commands supported? */ ++static int has_paniced; ++ ++extern struct notifier_block *panic_notifier_list; ++extern char *panic_string; ++extern char *die_str; ++extern long die_err; ++ ++extern void machine_restart(char *cmd); /*from include/linux/reboot.h*/ ++extern int ipmi_panic_init(void); ++extern int ipmi_send_recv(uchar cmd, uchar netfn, uchar lun, ++ uchar *sbuf, int slen, uchar *rbuf, int rlen, ++ int *nret, uchar *cc); ++ ++/////////////////////////////////////////////////////////// ++// Subroutines ++////////////////////////////////////////////////////////// ++ ++static int ReadSELinfo(void) ++{ ++ unsigned char cc; ++ unsigned char obuf[16]; ++ unsigned char ibuf[16]; ++ int rc, i; ++ ++ rc = ipmi_send_recv(GET_SEL_INFO,NETFN_STORAGE,0,obuf,0, ++ ibuf,sizeof(ibuf),&i,&cc); ++ if (rc == 0 && cc != 0) rc = cc; ++ if (rc == 0) ++ printk("bmc_panic: Code %d SEL Ver %d Support %d\n", ++ ibuf[0],ibuf[1],ibuf[14]); ++ return(rc); ++} /* end ReadSELinfo()*/ ++ ++static unsigned char getAlarmLED(void) ++{ ++ unsigned char cc; ++ unsigned char obuf[16]; ++ unsigned char ibuf[16]; ++ int olen, rc, i; ++ unsigned char alarms; ++ ++ /* Get Alarm LED values */ ++ obuf[0] = PRIVATE_BUS_ID; // 0x03; ++ obuf[1] = ALARMS_PANEL_READ; // 0x41; ++ obuf[2] = 1; // one byte of alarms data ++ obuf[3] = 0; // initial alarms value ++ olen = 3; ++ rc = ipmi_send_recv(MASTER_WRITE_READ,NETFN_APP,0, ++ obuf,olen,ibuf,4,&i,&cc); ++ alarms = ibuf[0]; ++ printk("ipmi_panic: get alarms rc=%d cc=%x, alarms=%02x\n", ++ rc,cc,alarms); ++ return(alarms); ++} /*end getAlarmLED*/ ++ ++static int setAlarmLED(unsigned char alarms) ++{ ++ unsigned char cc; ++ unsigned char obuf[16]; ++ unsigned char ibuf[16]; ++ int olen, rc, i; ++ ++ obuf[0] = PRIVATE_BUS_ID; // 0x03; ++ obuf[1] = ALARMS_PANEL_WRITE; // 0x40; ++ obuf[2] = 1; // one byte of alarms data ++ obuf[3] = (alarms & 0x0D) | 0xF0; // turn on critical alarm ++ olen = 4; ++ rc = ipmi_send_recv(MASTER_WRITE_READ,NETFN_APP,0, ++ obuf,olen,ibuf,0,&i,&cc); ++ printk("ipmi_panic: set crit alarm rc=%d cc=%x\n",rc,cc); ++ if (rc == 0 && cc != 0) rc = cc; ++ return(rc); ++} /*end setAlarmLED*/ ++ ++static int insertPanicRecord(ulong event) ++{ ++ unsigned char cc; ++ unsigned char obuf[16]; ++ unsigned char ibuf[16]; ++ int olen, rc, i; ++ ++ /* Log the OS Critical Stop to the SEL (BMC firmware log). */ ++ obuf[0] = 0x21; /* Kernel generator ID, IPMI table 5-4 */ ++ obuf[1] = 0x03; /* 3=IPMI10, 4=IPMI15, set as back-compatible w 1.0 */ ++ obuf[2] = 0x20; /* OS Critical Stop, IPMI table 36-3 */ ++ obuf[4] = 0x6f; /* Sensor specific, IPMI table 36-1 */ ++ obuf[5] = 0xa1; /* Runtime stop OEM bytes 2 & 3. */ ++ /* ++ * Most panics only have event codes == 0, so use panic_string. ++ * Start of panic string usu indicates module name. ++ */ ++ obuf[3] = panic_string[0]; ++ obuf[6] = panic_string[1]; ++ obuf[7] = panic_string[2]; ++ /* ++ * Add some bits to decode panic type ++ * String above is ASCII, so it will be betw 0x20 and 0x7f. ++ */ ++ if (die_str != NULL && strncmp(die_str,"Oops",4) == 0) ++ obuf[3] |= 0x80; /* Is an Oops */ ++ if (event == 1) obuf[6] |= 0x80; /* In interrupt handler */ ++ if (die_err & 0x01) obuf[7] |= 0x80; /* Null ptr dereference */ ++ olen = 8; ++ rc = ipmi_send_recv(PLATFORM_EVENT,NETFN_SENS_EVENT,0, ++ obuf,olen,ibuf,0,&i,&cc); ++ printk("bmc_panic: log OS Critical Stop rc=%d cc=%x, %c%c%c\n", ++ rc,cc, obuf[3],obuf[6],obuf[7]); ++ if (rc == 0 && cc != 0) rc = cc; ++ return(rc); ++} /*end insertPanicRecord()*/ ++ ++ ++static int panic_event(struct notifier_block *this, unsigned long event, ++ void *ptr) ++{ ++ unsigned char alarm; ++ ++ if (has_paniced) return NOTIFY_DONE; ++ has_paniced = 1; ++ ++#ifdef LINUX_DEBUG ++ SELprintf("panic_string(%p): %s\n",panic_string,panic_string); ++#endif ++ ++ if (fIPMIok) { ++ insertPanicRecord(event); ++ alarm = getAlarmLED(); ++ if (alarm != 0) // valid, ok to setAlarmLED ++ setAlarmLED(alarm); ++ } ++ return NOTIFY_DONE; ++} ++ ++static struct notifier_block panic_block = { ++ panic_event, ++ NULL, ++ 200 /* priority: INT_MAX >= x >= 0 */ ++}; ++ ++/* Initialize the module - Try SEL routines */ ++void init_SEL(void) ++{ ++#ifdef LINUX_DEBUG ++ printk (KERN_INFO "init_SEL: Reading SEL info\n"); ++#endif ++ if (ReadSELinfo() != 0) { ++ /* Nothing to do if the system can't do SEL functions. */ ++ fIPMIok = 0; ++ printk(KERN_ERR "bmc_panic: IPMI failure. unregister device\n"); ++ } ++ else { ++ fIPMIok = 1; ++ printk (KERN_INFO "Registering bmc_panic with panic notifier\n"); ++ notifier_chain_register(&panic_notifier_list, &panic_block); ++ } ++ return ; ++} ++ ++ ++/* Cleanup - unregister the appropriate file from /proc */ ++void cleanup_SEL(void) ++{ ++ printk ( KERN_INFO "Unregistering with panic notifier\n"); ++ notifier_chain_unregister(&panic_notifier_list, &panic_block); ++} ++ ++#ifdef CONFIG_BMCPANIC_ACTION ++#define BMCPANIC_ACTION CONFIG_BMCPANIC_ACTION ++#else ++#define BMCPANIC_ACTION 0 ++#endif ++void bmcpanic_action(void) ++{ ++ int ret, i; ++ unsigned char obuf, cc; ++ ++ if (fIPMIok) ret = BMCPANIC_ACTION; ++ else ret = 0; /* do machine_reset */ ++ switch(ret) ++ { ++ case 1: /* power down */ ++ obuf = 0; ++ ret = ipmi_send_recv(CHASSIS_CTL,NETFN_CHAS,0,&obuf,1,NULL,0,&i,&cc); ++ break; ++ case 2: /* power cycle */ ++ obuf = 2; ++ ret = ipmi_send_recv(CHASSIS_CTL,NETFN_CHAS,0,&obuf,1,NULL,0,&i,&cc); ++ break; ++ case 3: /* hard reset */ ++ obuf = 3; /* IPMI hard reset */ ++ ret = ipmi_send_recv(CHASSIS_CTL,NETFN_CHAS,0,&obuf,1,NULL,0,&i,&cc); ++ break; ++ case 0: /* soft reset */ ++ default: ++ machine_restart(NULL); /* normal Linux reset (arch/i386/) */ ++ } ++} ++ ++void bmc_poweroff(void) ++{ ++ int ret, i; ++ unsigned char obuf, cc; ++ ++ if (fIPMIok) { ++ obuf = 0; ++ ret = ipmi_send_recv(CHASSIS_CTL,NETFN_CHAS,0,&obuf,1,NULL,0,&i,&cc); ++ } ++} ++ ++/* end bmc_selmsg.c */ +--- linux-2.4.18-orig/arch/i386/kernel/process.c Mon Feb 25 14:37:53 2002 ++++ linux-2.4.18/arch/i386/kernel/process.c Thu Feb 27 14:28:39 2003 +@@ -426,10 +426,19 @@ + { + } + ++#ifdef CONFIG_BMCPANIC ++extern void bmc_poweroff(void); ++#endif ++ + void machine_power_off(void) + { + if (pm_power_off) + pm_power_off(); ++ ++#ifdef CONFIG_BMCPANIC ++ bmc_poweroff(); ++#endif ++ + } + + extern void show_trace(unsigned long* esp); +--- linux-2.4.18-orig/arch/i386/kernel/traps.c Sun Sep 30 15:26:08 2001 ++++ linux-2.4.18/arch/i386/kernel/traps.c Thu Feb 27 14:28:39 2003 +@@ -238,6 +238,8 @@ + } + + spinlock_t die_lock = SPIN_LOCK_UNLOCKED; ++char die_str[64] = ""; ++long die_err = 0; + + void die(const char * str, struct pt_regs * regs, long err) + { +@@ -245,6 +247,8 @@ + spin_lock_irq(&die_lock); + bust_spinlocks(1); + printk("%s: %04lx\n", str, err & 0xffff); ++ die_err = err; ++ strncpy(die_str,str,sizeof(die_str)-1); + show_registers(regs); + bust_spinlocks(0); + spin_unlock_irq(&die_lock); +--- linux-2.4.18-orig/arch/i386/kernel/i386_ksyms.c Mon Feb 25 14:37:53 2002 ++++ linux-2.4.18/arch/i386/kernel/i386_ksyms.c Thu Feb 27 14:28:39 2003 +@@ -31,6 +31,8 @@ + + extern void dump_thread(struct pt_regs *, struct user *); + extern spinlock_t rtc_lock; ++extern char *die_str; ++extern long die_err; + + #if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) + extern void machine_real_restart(unsigned char *, int); +@@ -140,6 +142,9 @@ + EXPORT_SYMBOL(__global_save_flags); + EXPORT_SYMBOL(__global_restore_flags); + EXPORT_SYMBOL(smp_call_function); ++ ++EXPORT_SYMBOL(die_str); ++EXPORT_SYMBOL(die_err); + + /* TLB flushing */ + EXPORT_SYMBOL(flush_tlb_page); |