Ejemplo n.º 1
0
void qdio_allocate_dbf(struct qdio_initialize *init_data,
		       struct qdio_irq *irq_ptr)
{
	char text[20];

	DBF_EVENT("qfmt:%1d", init_data->q_format);
	DBF_HEX(init_data->adapter_name, 8);
	DBF_EVENT("qpff%4x", init_data->qib_param_field_format);
	DBF_HEX(&init_data->qib_param_field, sizeof(void *));
	DBF_HEX(&init_data->input_slib_elements, sizeof(void *));
	DBF_HEX(&init_data->output_slib_elements, sizeof(void *));
	DBF_EVENT("niq:%1d noq:%1d", init_data->no_input_qs,
		  init_data->no_output_qs);
	DBF_HEX(&init_data->input_handler, sizeof(void *));
	DBF_HEX(&init_data->output_handler, sizeof(void *));
	DBF_HEX(&init_data->int_parm, sizeof(long));
	DBF_HEX(&init_data->input_sbal_addr_array, sizeof(void *));
	DBF_HEX(&init_data->output_sbal_addr_array, sizeof(void *));
	DBF_EVENT("irq:%8lx", (unsigned long)irq_ptr);

	/* allocate trace view for the interface */
	snprintf(text, 20, "qdio_%s", dev_name(&init_data->cdev->dev));
	irq_ptr->debug_area = debug_register(text, 2, 1, 16);
	debug_register_view(irq_ptr->debug_area, &debug_hex_ascii_view);
	debug_set_level(irq_ptr->debug_area, DBF_WARN);
	DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf created");
}
Ejemplo n.º 2
0
/*
 * dasd_default_erp_action just retries the current cqr
 */
struct dasd_ccw_req *
dasd_default_erp_action(struct dasd_ccw_req *cqr)
{
	struct dasd_device *device;

	device = cqr->startdev;

        /* just retry - there is nothing to save ... I got no sense data.... */
        if (cqr->retries > 0) {
		DBF_DEV_EVENT(DBF_DEBUG, device,
                             "default ERP called (%i retries left)",
                             cqr->retries);
<<<<<<< HEAD
Ejemplo n.º 3
0
/*
 * performs formatting of _device_ according to _fdata_
 * Note: The discipline's format_function is assumed to deliver formatting
 * commands to format a single unit of the device. In terms of the ECKD
 * devices this means CCWs are generated to format a single track.
 */
static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
{
    struct dasd_ccw_req *cqr;
    struct dasd_device *base;
    int rc;

    base = block->base;
    if (base->discipline->format_device == NULL)
        return -EPERM;

    if (base->state != DASD_STATE_BASIC) {
        DEV_MESSAGE(KERN_WARNING, base, "%s",
                    "dasd_format: device is not disabled! ");
        return -EBUSY;
    }

    DBF_DEV_EVENT(DBF_NOTICE, base,
                  "formatting units %d to %d (%d B blocks) flags %d",
                  fdata->start_unit,
                  fdata->stop_unit, fdata->blksize, fdata->intensity);

    /* Since dasdfmt keeps the device open after it was disabled,
     * there still exists an inode for this device.
     * We must update i_blkbits, otherwise we might get errors when
     * enabling the device later.
     */
    if (fdata->start_unit == 0) {
        struct block_device *bdev = bdget_disk(block->gdp, 0);
        bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize);
        bdput(bdev);
    }

    while (fdata->start_unit <= fdata->stop_unit) {
        cqr = base->discipline->format_device(base, fdata);
        if (IS_ERR(cqr))
            return PTR_ERR(cqr);
        rc = dasd_sleep_on_interruptible(cqr);
        dasd_sfree_request(cqr, cqr->memdev);
        if (rc) {
            if (rc != -ERESTARTSYS)
                DEV_MESSAGE(KERN_ERR, base,
                            " Formatting of unit %d failed "
                            "with rc = %d",
                            fdata->start_unit, rc);
            return rc;
        }
        fdata->start_unit++;
    }
    return 0;
}
Ejemplo n.º 4
0
/*
 * performs formatting of _device_ according to _fdata_
 * Note: The discipline's format_function is assumed to deliver formatting
 * commands to format a single unit of the device. In terms of the ECKD
 * devices this means CCWs are generated to format a single track.
 */
static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
{
	struct dasd_ccw_req *cqr;
	struct dasd_device *base;
	int rc;

	base = block->base;
	if (base->discipline->format_device == NULL)
		return -EPERM;

	if (base->state != DASD_STATE_BASIC) {
		pr_warning("%s: The DASD cannot be formatted while it is "
			   "enabled\n",  dev_name(&base->cdev->dev));
		return -EBUSY;
	}

	DBF_DEV_EVENT(DBF_NOTICE, base,
		      "formatting units %u to %u (%u B blocks) flags %u",
		      fdata->start_unit,
		      fdata->stop_unit, fdata->blksize, fdata->intensity);

	/* Since dasdfmt keeps the device open after it was disabled,
	 * there still exists an inode for this device.
	 * We must update i_blkbits, otherwise we might get errors when
	 * enabling the device later.
	 */
	if (fdata->start_unit == 0) {
		struct block_device *bdev = bdget_disk(block->gdp, 0);
		bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize);
		bdput(bdev);
	}

	while (fdata->start_unit <= fdata->stop_unit) {
		cqr = base->discipline->format_device(base, fdata);
		if (IS_ERR(cqr))
			return PTR_ERR(cqr);
		rc = dasd_sleep_on_interruptible(cqr);
		dasd_sfree_request(cqr, cqr->memdev);
		if (rc) {
			if (rc != -ERESTARTSYS)
				pr_err("%s: Formatting unit %d failed with "
				       "rc=%d\n", dev_name(&base->cdev->dev),
				       fdata->start_unit, rc);
			return rc;
		}
		fdata->start_unit++;
	}
	return 0;
}
Ejemplo n.º 5
0
/*
 * dasd_default_erp_action just retries the current cqr
 */
struct dasd_ccw_req *
dasd_default_erp_action(struct dasd_ccw_req *cqr)
{
	struct dasd_device *device;

	device = cqr->startdev;

        /* just retry - there is nothing to save ... I got no sense data.... */
        if (cqr->retries > 0) {
		DBF_DEV_EVENT(DBF_DEBUG, device,
                             "default ERP called (%i retries left)",
                             cqr->retries);
		cqr->lpm    = LPM_ANYPATH;
		cqr->status = DASD_CQR_FILLED;
        } else {
		dev_err(&device->cdev->dev,
			"default ERP has run out of retries and failed\n");
		cqr->status = DASD_CQR_FAILED;
		cqr->stopclk = get_clock();
        }
        return cqr;
}				/* end dasd_default_erp_action */
Ejemplo n.º 6
0
/*
 * dasd_default_erp_action just retries the current cqr
 */
struct dasd_ccw_req *
dasd_default_erp_action(struct dasd_ccw_req *cqr)
{
	struct dasd_device *device;

	device = cqr->startdev;

        /* just retry - there is nothing to save ... I got no sense data.... */
        if (cqr->retries > 0) {
		DBF_DEV_EVENT(DBF_DEBUG, device,
                             "default ERP called (%i retries left)",
                             cqr->retries);
		if (!test_bit(DASD_CQR_VERIFY_PATH, &cqr->flags))
			cqr->lpm = dasd_path_get_opm(device);
		cqr->status = DASD_CQR_FILLED;
        } else {
		pr_err("%s: default ERP has run out of retries and failed\n",
		       dev_name(&device->cdev->dev));
		cqr->status = DASD_CQR_FAILED;
		cqr->stopclk = get_tod_clock();
        }
        return cqr;
}				/* end dasd_default_erp_action */