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dasd_3990_erp.c
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dasd_3990_erp.c
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/*
* Author(s)......: Horst Hummel <[email protected]>
* Holger Smolinski <[email protected]>
* Bugreports.to..: <[email protected]>
* Copyright IBM Corp. 2000, 2001
*
*/
#define KMSG_COMPONENT "dasd-eckd"
#include <linux/timer.h>
#include <asm/idals.h>
#define PRINTK_HEADER "dasd_erp(3990): "
#include "dasd_int.h"
#include "dasd_eckd.h"
struct DCTL_data {
unsigned char subcommand; /* e.g Inhibit Write, Enable Write,... */
unsigned char modifier; /* Subcommand modifier */
unsigned short res; /* reserved */
} __attribute__ ((packed));
/*
*****************************************************************************
* SECTION ERP HANDLING
*****************************************************************************
*/
/*
*****************************************************************************
* 24 and 32 byte sense ERP functions
*****************************************************************************
*/
/*
* DASD_3990_ERP_CLEANUP
*
* DESCRIPTION
* Removes the already build but not necessary ERP request and sets
* the status of the original cqr / erp to the given (final) status
*
* PARAMETER
* erp request to be blocked
* final_status either DASD_CQR_DONE or DASD_CQR_FAILED
*
* RETURN VALUES
* cqr original cqr
*/
static struct dasd_ccw_req *
dasd_3990_erp_cleanup(struct dasd_ccw_req * erp, char final_status)
{
struct dasd_ccw_req *cqr = erp->refers;
dasd_free_erp_request(erp, erp->memdev);
cqr->status = final_status;
return cqr;
} /* end dasd_3990_erp_cleanup */
/*
* DASD_3990_ERP_BLOCK_QUEUE
*
* DESCRIPTION
* Block the given device request queue to prevent from further
* processing until the started timer has expired or an related
* interrupt was received.
*/
static void dasd_3990_erp_block_queue(struct dasd_ccw_req *erp, int expires)
{
struct dasd_device *device = erp->startdev;
unsigned long flags;
DBF_DEV_EVENT(DBF_INFO, device,
"blocking request queue for %is", expires/HZ);
spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
dasd_device_set_stop_bits(device, DASD_STOPPED_PENDING);
spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
erp->status = DASD_CQR_FILLED;
if (erp->block)
dasd_block_set_timer(erp->block, expires);
else
dasd_device_set_timer(device, expires);
}
/*
* DASD_3990_ERP_INT_REQ
*
* DESCRIPTION
* Handles 'Intervention Required' error.
* This means either device offline or not installed.
*
* PARAMETER
* erp current erp
* RETURN VALUES
* erp modified erp
*/
static struct dasd_ccw_req *
dasd_3990_erp_int_req(struct dasd_ccw_req * erp)
{
struct dasd_device *device = erp->startdev;
/* first time set initial retry counter and erp_function */
/* and retry once without blocking queue */
/* (this enables easier enqueing of the cqr) */
if (erp->function != dasd_3990_erp_int_req) {
erp->retries = 256;
erp->function = dasd_3990_erp_int_req;
} else {
/* issue a message and wait for 'device ready' interrupt */
dev_err(&device->cdev->dev,
"is offline or not installed - "
"INTERVENTION REQUIRED!!\n");
dasd_3990_erp_block_queue(erp, 60*HZ);
}
return erp;
} /* end dasd_3990_erp_int_req */
/*
* DASD_3990_ERP_ALTERNATE_PATH
*
* DESCRIPTION
* Repeat the operation on a different channel path.
* If all alternate paths have been tried, the request is posted with a
* permanent error.
*
* PARAMETER
* erp pointer to the current ERP
*
* RETURN VALUES
* erp modified pointer to the ERP
*/
static void
dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp)
{
struct dasd_device *device = erp->startdev;
__u8 opm;
unsigned long flags;
/* try alternate valid path */
spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
opm = ccw_device_get_path_mask(device->cdev);
spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
if (erp->lpm == 0)
erp->lpm = device->path_data.opm &
~(erp->irb.esw.esw0.sublog.lpum);
else
erp->lpm &= ~(erp->irb.esw.esw0.sublog.lpum);
if ((erp->lpm & opm) != 0x00) {
DBF_DEV_EVENT(DBF_WARNING, device,
"try alternate lpm=%x (lpum=%x / opm=%x)",
erp->lpm, erp->irb.esw.esw0.sublog.lpum, opm);
/* reset status to submit the request again... */
erp->status = DASD_CQR_FILLED;
erp->retries = 10;
} else {
dev_err(&device->cdev->dev,
"The DASD cannot be reached on any path (lpum=%x"
"/opm=%x)\n", erp->irb.esw.esw0.sublog.lpum, opm);
/* post request with permanent error */
erp->status = DASD_CQR_FAILED;
}
} /* end dasd_3990_erp_alternate_path */
/*
* DASD_3990_ERP_DCTL
*
* DESCRIPTION
* Setup cqr to do the Diagnostic Control (DCTL) command with an
* Inhibit Write subcommand (0x20) and the given modifier.
*
* PARAMETER
* erp pointer to the current (failed) ERP
* modifier subcommand modifier
*
* RETURN VALUES
* dctl_cqr pointer to NEW dctl_cqr
*
*/
static struct dasd_ccw_req *
dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier)
{
struct dasd_device *device = erp->startdev;
struct DCTL_data *DCTL_data;
struct ccw1 *ccw;
struct dasd_ccw_req *dctl_cqr;
dctl_cqr = dasd_alloc_erp_request((char *) &erp->magic, 1,
sizeof(struct DCTL_data),
device);
if (IS_ERR(dctl_cqr)) {
dev_err(&device->cdev->dev,
"Unable to allocate DCTL-CQR\n");
erp->status = DASD_CQR_FAILED;
return erp;
}
DCTL_data = dctl_cqr->data;
DCTL_data->subcommand = 0x02; /* Inhibit Write */
DCTL_data->modifier = modifier;
ccw = dctl_cqr->cpaddr;
memset(ccw, 0, sizeof(struct ccw1));
ccw->cmd_code = CCW_CMD_DCTL;
ccw->count = 4;
ccw->cda = (__u32)(addr_t) DCTL_data;
dctl_cqr->flags = erp->flags;
dctl_cqr->function = dasd_3990_erp_DCTL;
dctl_cqr->refers = erp;
dctl_cqr->startdev = device;
dctl_cqr->memdev = device;
dctl_cqr->magic = erp->magic;
dctl_cqr->expires = 5 * 60 * HZ;
dctl_cqr->retries = 2;
dctl_cqr->buildclk = get_tod_clock();
dctl_cqr->status = DASD_CQR_FILLED;
return dctl_cqr;
} /* end dasd_3990_erp_DCTL */
/*
* DASD_3990_ERP_ACTION_1
*
* DESCRIPTION
* Setup ERP to do the ERP action 1 (see Reference manual).
* Repeat the operation on a different channel path.
* As deviation from the recommended recovery action, we reset the path mask
* after we have tried each path and go through all paths a second time.
* This will cover situations where only one path at a time is actually down,
* but all paths fail and recover just with the same sequence and timing as
* we try to use them (flapping links).
* If all alternate paths have been tried twice, the request is posted with
* a permanent error.
*
* PARAMETER
* erp pointer to the current ERP
*
* RETURN VALUES
* erp pointer to the ERP
*
*/
static struct dasd_ccw_req *dasd_3990_erp_action_1_sec(struct dasd_ccw_req *erp)
{
erp->function = dasd_3990_erp_action_1_sec;
dasd_3990_erp_alternate_path(erp);
return erp;
}
static struct dasd_ccw_req *dasd_3990_erp_action_1(struct dasd_ccw_req *erp)
{
erp->function = dasd_3990_erp_action_1;
dasd_3990_erp_alternate_path(erp);
if (erp->status == DASD_CQR_FAILED &&
!test_bit(DASD_CQR_VERIFY_PATH, &erp->flags)) {
erp->status = DASD_CQR_FILLED;
erp->retries = 10;
erp->lpm = erp->startdev->path_data.opm;
erp->function = dasd_3990_erp_action_1_sec;
}
return erp;
} /* end dasd_3990_erp_action_1(b) */
/*
* DASD_3990_ERP_ACTION_4
*
* DESCRIPTION
* Setup ERP to do the ERP action 4 (see Reference manual).
* Set the current request to PENDING to block the CQR queue for that device
* until the state change interrupt appears.
* Use a timer (20 seconds) to retry the cqr if the interrupt is still
* missing.
*
* PARAMETER
* sense sense data of the actual error
* erp pointer to the current ERP
*
* RETURN VALUES
* erp pointer to the ERP
*
*/
static struct dasd_ccw_req *
dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense)
{
struct dasd_device *device = erp->startdev;
/* first time set initial retry counter and erp_function */
/* and retry once without waiting for state change pending */
/* interrupt (this enables easier enqueing of the cqr) */
if (erp->function != dasd_3990_erp_action_4) {
DBF_DEV_EVENT(DBF_INFO, device, "%s",
"dasd_3990_erp_action_4: first time retry");
erp->retries = 256;
erp->function = dasd_3990_erp_action_4;
} else {
if (sense && (sense[25] == 0x1D)) { /* state change pending */
DBF_DEV_EVENT(DBF_INFO, device,
"waiting for state change pending "
"interrupt, %d retries left",
erp->retries);
dasd_3990_erp_block_queue(erp, 30*HZ);
} else if (sense && (sense[25] == 0x1E)) { /* busy */
DBF_DEV_EVENT(DBF_INFO, device,
"busy - redriving request later, "
"%d retries left",
erp->retries);
dasd_3990_erp_block_queue(erp, HZ);
} else {
/* no state change pending - retry */
DBF_DEV_EVENT(DBF_INFO, device,
"redriving request immediately, "
"%d retries left",
erp->retries);
erp->status = DASD_CQR_FILLED;
}
}
return erp;
} /* end dasd_3990_erp_action_4 */
/*
*****************************************************************************
* 24 byte sense ERP functions (only)
*****************************************************************************
*/
/*
* DASD_3990_ERP_ACTION_5
*
* DESCRIPTION
* Setup ERP to do the ERP action 5 (see Reference manual).
* NOTE: Further handling is done in xxx_further_erp after the retries.
*
* PARAMETER
* erp pointer to the current ERP
*
* RETURN VALUES
* erp pointer to the ERP
*
*/
static struct dasd_ccw_req *
dasd_3990_erp_action_5(struct dasd_ccw_req * erp)
{
/* first of all retry */
erp->retries = 10;
erp->function = dasd_3990_erp_action_5;
return erp;
} /* end dasd_3990_erp_action_5 */
/*
* DASD_3990_HANDLE_ENV_DATA
*
* DESCRIPTION
* Handles 24 byte 'Environmental data present'.
* Does a analysis of the sense data (message Format)
* and prints the error messages.
*
* PARAMETER
* sense current sense data
*
* RETURN VALUES
* void
*/
static void
dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense)
{
struct dasd_device *device = erp->startdev;
char msg_format = (sense[7] & 0xF0);
char msg_no = (sense[7] & 0x0F);
char errorstring[ERRORLENGTH];
switch (msg_format) {
case 0x00: /* Format 0 - Program or System Checks */
if (sense[1] & 0x10) { /* check message to operator bit */
switch (msg_no) {
case 0x00: /* No Message */
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Command\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Command "
"Sequence\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 0 - CCW Count less than "
"required\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Parameter\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Diagnostic of Special"
" Command Violates File Mask\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel Returned with "
"Incorrect retry CCW\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Reset Notification\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Storage Path Restart\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Channel requested "
"... %02x\n", sense[8]);
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Invalid Defective/"
"Alternate Track Pointer\n");
break;
case 0x0C:
dev_warn(&device->cdev->dev,
"FORMAT 0 - DPS Installation "
"Check\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Command Invalid on "
"Secondary Address\n");
break;
case 0x0F:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Status Not As "
"Required: reason %02x\n",
sense[8]);
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Reserved\n");
}
} else {
switch (msg_no) {
case 0x00: /* No Message */
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Device Error "
"Source\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Reserved\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Device Fenced - "
"device = %02x\n", sense[4]);
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Data Pinned for "
"Device\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 0 - Reserved\n");
}
}
break;
case 0x10: /* Format 1 - Device Equipment Checks */
switch (msg_no) {
case 0x00: /* No Message */
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Device Status 1 not as "
"expected\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Index missing\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Interruption cannot be "
"reset\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Device did not respond to "
"selection\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Device check-2 error or Set "
"Sector is not complete\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Head address does not "
"compare\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Device status 1 not valid\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Device not ready\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Track physical address did "
"not compare\n");
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Missing device address bit\n");
break;
case 0x0C:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Drive motor switch is off\n");
break;
case 0x0D:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Seek incomplete\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Cylinder address did not "
"compare\n");
break;
case 0x0F:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Offset active cannot be "
"reset\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 1 - Reserved\n");
}
break;
case 0x20: /* Format 2 - 3990 Equipment Checks */
switch (msg_no) {
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 2 - 3990 check-2 error\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT 2 - Support facility errors\n");
break;
case 0x0F:
dev_warn(&device->cdev->dev,
"FORMAT 2 - Microcode detected error "
"%02x\n",
sense[8]);
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 2 - Reserved\n");
}
break;
case 0x30: /* Format 3 - 3990 Control Checks */
switch (msg_no) {
case 0x0F:
dev_warn(&device->cdev->dev,
"FORMAT 3 - Allegiance terminated\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 3 - Reserved\n");
}
break;
case 0x40: /* Format 4 - Data Checks */
switch (msg_no) {
case 0x00:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Home address area error\n");
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Count area error\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Key area error\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Data area error\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home address "
"area\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in count address "
"area\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in key area\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in data area\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Home address area error; "
"offset active\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Count area error; offset "
"active\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Key area error; offset "
"active\n");
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Data area error; "
"offset active\n");
break;
case 0x0C:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in home "
"address area; offset active\n");
break;
case 0x0D:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in count "
"address area; offset active\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No sync byte in key area; "
"offset active\n");
break;
case 0x0F:
dev_warn(&device->cdev->dev,
"FORMAT 4 - No syn byte in data area; "
"offset active\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 4 - Reserved\n");
}
break;
case 0x50: /* Format 5 - Data Check with displacement information */
switch (msg_no) {
case 0x00:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
"home address area\n");
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the count "
"area\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the key area\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the data "
"area\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the "
"home address area; offset active\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the count area; "
"offset active\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the key area; "
"offset active\n");
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Data Check in the data area; "
"offset active\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 5 - Reserved\n");
}
break;
case 0x60: /* Format 6 - Usage Statistics/Overrun Errors */
switch (msg_no) {
case 0x00:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel A\n");
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel B\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel C\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel D\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel E\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel F\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel G\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Overrun on channel H\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 6 - Reserved\n");
}
break;
case 0x70: /* Format 7 - Device Connection Control Checks */
switch (msg_no) {
case 0x00:
dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC initiated by a connection "
"check alert\n");
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 sequence not "
"successful\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT 7 - RCC 1 and RCC 2 sequences not "
"successful\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in during "
"selection sequence\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 7 - extra RCC required\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid DCC selection "
"response or timeout\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
"transfer complete\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Missing end operation; device "
"transfer incomplete\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
"immediate command sequence\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Invalid tag-in for an "
"extended command sequence\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 7 - 3990 microcode time out when "
"stopping selection\n");
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT 7 - No response to selection "
"after a poll interruption\n");
break;
case 0x0C:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Permanent path error (DASD "
"controller not available)\n");
break;
case 0x0D:
dev_warn(&device->cdev->dev,
"FORMAT 7 - DASD controller not available"
" on disconnected command chain\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 7 - Reserved\n");
}
break;
case 0x80: /* Format 8 - Additional Device Equipment Checks */
switch (msg_no) {
case 0x00: /* No Message */
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT 8 - Error correction code "
"hardware fault\n");
break;
case 0x03:
dev_warn(&device->cdev->dev,
"FORMAT 8 - Unexpected end operation "
"response code\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
"count not zero\n");
break;
case 0x05:
dev_warn(&device->cdev->dev,
"FORMAT 8 - End operation with transfer "
"count zero\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 8 - DPS checks after a system "
"reset or selective reset\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 8 - DPS cannot be filled\n");
break;
case 0x08:
dev_warn(&device->cdev->dev,
"FORMAT 8 - Short busy time-out during "
"device selection\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT 8 - DASD controller failed to "
"set or reset the long busy latch\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 8 - No interruption from device "
"during a command chain\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 8 - Reserved\n");
}
break;
case 0x90: /* Format 9 - Device Read, Write, and Seek Checks */
switch (msg_no) {
case 0x00:
break; /* No Message */
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT 9 - Device check-2 error\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT 9 - Head address did not "
"compare\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT 9 - Track physical address did "
"not compare while oriented\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT 9 - Cylinder address did not "
"compare\n");
break;
default:
dev_warn(&device->cdev->dev,
"FORMAT 9 - Reserved\n");
}
break;
case 0xF0: /* Format F - Cache Storage Checks */
switch (msg_no) {
case 0x00:
dev_warn(&device->cdev->dev,
"FORMAT F - Operation Terminated\n");
break;
case 0x01:
dev_warn(&device->cdev->dev,
"FORMAT F - Subsystem Processing Error\n");
break;
case 0x02:
dev_warn(&device->cdev->dev,
"FORMAT F - Cache or nonvolatile storage "
"equipment failure\n");
break;
case 0x04:
dev_warn(&device->cdev->dev,
"FORMAT F - Caching terminated\n");
break;
case 0x06:
dev_warn(&device->cdev->dev,
"FORMAT F - Cache fast write access not "
"authorized\n");
break;
case 0x07:
dev_warn(&device->cdev->dev,
"FORMAT F - Track format incorrect\n");
break;
case 0x09:
dev_warn(&device->cdev->dev,
"FORMAT F - Caching reinitiated\n");
break;
case 0x0A:
dev_warn(&device->cdev->dev,
"FORMAT F - Nonvolatile storage "
"terminated\n");
break;
case 0x0B:
dev_warn(&device->cdev->dev,
"FORMAT F - Volume is suspended duplex\n");
/* call extended error reporting (EER) */
dasd_eer_write(device, erp->refers,
DASD_EER_PPRCSUSPEND);
break;
case 0x0C:
dev_warn(&device->cdev->dev,
"FORMAT F - Subsystem status cannot be "
"determined\n");
break;
case 0x0D:
dev_warn(&device->cdev->dev,
"FORMAT F - Caching status reset to "
"default\n");
break;
case 0x0E:
dev_warn(&device->cdev->dev,
"FORMAT F - DASD Fast Write inhibited\n");
break;
default: