s390-bios: cio error handling
Add verbose error output for when unexpected i/o errors happen. This eases the
burden of debugging and reporting i/o errors. No error information is printed
in the success case, here is an example of what is output on error:
cio device error
ssid : 0x0000000000000000
cssid : 0x0000000000000000
sch_no: 0x0000000000000000
Interrupt Response Block Data:
Function Ctrl : [Start]
Activity Ctrl : [Start-Pending]
Status Ctrl : [Alert] [Primary] [Secondary] [Status-Pending]
Device Status : [Unit-Check]
Channel Status :
cpa=: 0x000000007f8d6038
prev_ccw=: 0x0000000000000000
this_ccw=: 0x0000000000000000
Eckd Dasd Sense Data (fmt 32-bytes):
Sense Condition Flags :
Residual Count =: 0x0000000000000000
Phys Drive ID =: 0x000000000000009e
low cyl address =: 0x0000000000000000
head addr & hi cyl =: 0x0000000000000000
format/message =: 0x0000000000000008
fmt-dependent[0-7] =: 0x0000000000000004
fmt-dependent[8-15]=: 0xe561282305082fff
prog action code =: 0x0000000000000016
Configuration info =: 0x00000000000040e0
mcode / hi-cyl =: 0x0000000000000000
cyl & head addr [0]=: 0x0000000000000000
cyl & head addr [1]=: 0x0000000000000000
cyl & head addr [2]=: 0x0000000000000000
The Sense Data section is currently only printed for ECKD DASD.
Signed-off-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <1554388475-18329-10-git-send-email-jjherne@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Jason J. Herne
Thomas Huth
parent
3083a1bbb8
commit
86c58705bb
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@ -85,6 +85,228 @@ static bool irb_error(Irb *irb)
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return irb->scsw.dstat != (SCSW_DSTAT_DEVEND | SCSW_DSTAT_CHEND);
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}
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static void print_eckd_dasd_sense_data(SenseDataEckdDasd *sd)
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{
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char msgline[512];
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if (sd->config_info & 0x8000) {
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sclp_print("Eckd Dasd Sense Data (fmt 24-bytes):\n");
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} else {
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sclp_print("Eckd Dasd Sense Data (fmt 32-bytes):\n");
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}
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strcat(msgline, " Sense Condition Flags :");
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if (sd->common_status & SNS_STAT0_CMD_REJECT) {
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strcat(msgline, " [Cmd-Reject]");
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}
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if (sd->common_status & SNS_STAT0_INTERVENTION_REQ) {
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strcat(msgline, " [Intervention-Required]");
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}
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if (sd->common_status & SNS_STAT0_BUS_OUT_CHECK) {
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strcat(msgline, " [Bus-Out-Parity-Check]");
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}
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if (sd->common_status & SNS_STAT0_EQUIPMENT_CHECK) {
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strcat(msgline, " [Equipment-Check]");
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}
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if (sd->common_status & SNS_STAT0_DATA_CHECK) {
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strcat(msgline, " [Data-Check]");
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}
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if (sd->common_status & SNS_STAT0_OVERRUN) {
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strcat(msgline, " [Overrun]");
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}
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if (sd->common_status & SNS_STAT0_INCOMPL_DOMAIN) {
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strcat(msgline, " [Incomplete-Domain]");
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}
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if (sd->status[0] & SNS_STAT1_PERM_ERR) {
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strcat(msgline, " [Permanent-Error]");
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}
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if (sd->status[0] & SNS_STAT1_INV_TRACK_FORMAT) {
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strcat(msgline, " [Invalid-Track-Fmt]");
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}
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if (sd->status[0] & SNS_STAT1_EOC) {
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strcat(msgline, " [End-of-Cyl]");
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}
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if (sd->status[0] & SNS_STAT1_MESSAGE_TO_OPER) {
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strcat(msgline, " [Operator-Msg]");
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}
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if (sd->status[0] & SNS_STAT1_NO_REC_FOUND) {
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strcat(msgline, " [No-Record-Found]");
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}
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if (sd->status[0] & SNS_STAT1_FILE_PROTECTED) {
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strcat(msgline, " [File-Protected]");
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}
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if (sd->status[0] & SNS_STAT1_WRITE_INHIBITED) {
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strcat(msgline, " [Write-Inhibited]");
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}
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if (sd->status[0] & SNS_STAT1_IMPRECISE_END) {
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strcat(msgline, " [Imprecise-Ending]");
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}
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if (sd->status[1] & SNS_STAT2_REQ_INH_WRITE) {
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strcat(msgline, " [Req-Inhibit-Write]");
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}
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if (sd->status[1] & SNS_STAT2_CORRECTABLE) {
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strcat(msgline, " [Correctable-Data-Check]");
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}
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if (sd->status[1] & SNS_STAT2_FIRST_LOG_ERR) {
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strcat(msgline, " [First-Error-Log]");
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}
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if (sd->status[1] & SNS_STAT2_ENV_DATA_PRESENT) {
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strcat(msgline, " [Env-Data-Present]");
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}
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if (sd->status[1] & SNS_STAT2_IMPRECISE_END) {
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strcat(msgline, " [Imprecise-End]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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print_int(" Residual Count =", sd->res_count);
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print_int(" Phys Drive ID =", sd->phys_drive_id);
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print_int(" low cyl address =", sd->low_cyl_addr);
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print_int(" head addr & hi cyl =", sd->head_high_cyl_addr);
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print_int(" format/message =", sd->fmt_msg);
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print_int(" fmt-dependent[0-7] =", sd->fmt_dependent_info[0]);
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print_int(" fmt-dependent[8-15]=", sd->fmt_dependent_info[1]);
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print_int(" prog action code =", sd->program_action_code);
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print_int(" Configuration info =", sd->config_info);
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print_int(" mcode / hi-cyl =", sd->mcode_hicyl);
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print_int(" cyl & head addr [0]=", sd->cyl_head_addr[0]);
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print_int(" cyl & head addr [1]=", sd->cyl_head_addr[1]);
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print_int(" cyl & head addr [2]=", sd->cyl_head_addr[2]);
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}
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static void print_irb_err(Irb *irb)
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{
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uint64_t this_ccw = *(uint64_t *)u32toptr(irb->scsw.cpa);
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uint64_t prev_ccw = *(uint64_t *)u32toptr(irb->scsw.cpa - 8);
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char msgline[256];
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sclp_print("Interrupt Response Block Data:\n");
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strcat(msgline, " Function Ctrl :");
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if (irb->scsw.ctrl & SCSW_FCTL_START_FUNC) {
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strcat(msgline, " [Start]");
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}
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if (irb->scsw.ctrl & SCSW_FCTL_HALT_FUNC) {
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strcat(msgline, " [Halt]");
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}
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if (irb->scsw.ctrl & SCSW_FCTL_CLEAR_FUNC) {
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strcat(msgline, " [Clear]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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msgline[0] = '\0';
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strcat(msgline, " Activity Ctrl :");
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if (irb->scsw.ctrl & SCSW_ACTL_RESUME_PEND) {
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strcat(msgline, " [Resume-Pending]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_START_PEND) {
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strcat(msgline, " [Start-Pending]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_HALT_PEND) {
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strcat(msgline, " [Halt-Pending]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_CLEAR_PEND) {
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strcat(msgline, " [Clear-Pending]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_CH_ACTIVE) {
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strcat(msgline, " [Channel-Active]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_DEV_ACTIVE) {
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strcat(msgline, " [Device-Active]");
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}
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if (irb->scsw.ctrl & SCSW_ACTL_SUSPENDED) {
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strcat(msgline, " [Suspended]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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msgline[0] = '\0';
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strcat(msgline, " Status Ctrl :");
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if (irb->scsw.ctrl & SCSW_SCTL_ALERT) {
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strcat(msgline, " [Alert]");
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}
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if (irb->scsw.ctrl & SCSW_SCTL_INTERMED) {
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strcat(msgline, " [Intermediate]");
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}
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if (irb->scsw.ctrl & SCSW_SCTL_PRIMARY) {
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strcat(msgline, " [Primary]");
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}
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if (irb->scsw.ctrl & SCSW_SCTL_SECONDARY) {
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strcat(msgline, " [Secondary]");
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}
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if (irb->scsw.ctrl & SCSW_SCTL_STATUS_PEND) {
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strcat(msgline, " [Status-Pending]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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msgline[0] = '\0';
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strcat(msgline, " Device Status :");
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if (irb->scsw.dstat & SCSW_DSTAT_ATTN) {
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strcat(msgline, " [Attention]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_STATMOD) {
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strcat(msgline, " [Status-Modifier]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_CUEND) {
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strcat(msgline, " [Ctrl-Unit-End]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_BUSY) {
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strcat(msgline, " [Busy]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_CHEND) {
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strcat(msgline, " [Channel-End]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_DEVEND) {
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strcat(msgline, " [Device-End]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_UCHK) {
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strcat(msgline, " [Unit-Check]");
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}
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if (irb->scsw.dstat & SCSW_DSTAT_UEXCP) {
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strcat(msgline, " [Unit-Exception]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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msgline[0] = '\0';
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strcat(msgline, " Channel Status :");
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if (irb->scsw.cstat & SCSW_CSTAT_PCINT) {
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strcat(msgline, " [Program-Ctrl-Interruption]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_BADLEN) {
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strcat(msgline, " [Incorrect-Length]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_PROGCHK) {
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strcat(msgline, " [Program-Check]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_PROTCHK) {
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strcat(msgline, " [Protection-Check]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_CHDCHK) {
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strcat(msgline, " [Channel-Data-Check]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_CHCCHK) {
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strcat(msgline, " [Channel-Ctrl-Check]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_ICCHK) {
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strcat(msgline, " [Interface-Ctrl-Check]");
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}
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if (irb->scsw.cstat & SCSW_CSTAT_CHAINCHK) {
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strcat(msgline, " [Chaining-Check]");
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}
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strcat(msgline, "\n");
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sclp_print(msgline);
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print_int(" cpa=", irb->scsw.cpa);
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print_int(" prev_ccw=", prev_ccw);
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print_int(" this_ccw=", this_ccw);
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}
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/*
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* Handles executing ssch, tsch and returns the irb obtained from tsch.
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* Returns 0 on success, -1 if unexpected status pending and we need to retry,
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@ -180,6 +402,19 @@ int do_cio(SubChannelId schid, uint16_t cutype, uint32_t ccw_addr, int fmt)
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continue;
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}
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sclp_print("cio device error\n");
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print_int(" ssid ", schid.ssid);
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print_int(" cssid ", schid.cssid);
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print_int(" sch_no", schid.sch_no);
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print_int(" ctrl-unit type", cutype);
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sclp_print("\n");
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print_irb_err(&irb);
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if (cutype == CU_TYPE_DASD_3990 || cutype == CU_TYPE_DASD_2107 ||
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cutype == CU_TYPE_UNKNOWN) {
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if (!basic_sense(schid, cutype, &sd, sizeof(sd))) {
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print_eckd_dasd_sense_data(&sd);
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}
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}
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rc = -1;
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break;
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}
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@ -67,6 +67,17 @@ static inline size_t strlen(const char *str)
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return i;
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}
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static inline char *strcat(char *dest, const char *src)
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{
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int i;
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char *dest_end = dest + strlen(dest);
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for (i = 0; i <= strlen(src); i++) {
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dest_end[i] = src[i];
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}
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return dest;
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}
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static inline int isdigit(int c)
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{
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return (c >= '0') && (c <= '9');
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