[S390] tape message cleanup (ab640db0) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/s390/char/tape.h

+0 −2

Original line number	Diff line number	Diff line
		@@ -324,8 +324,6 @@ static inline void tape_proc_cleanup (void) {;}
		#endif

		/* a function for dumping device sense info */
		extern void tape_dump_sense(struct tape_device , struct tape_request ,
		struct irb *);
		extern void tape_dump_sense_dbf(struct tape_device , struct tape_request ,
		struct irb *);

drivers/s390/char/tape_34xx.c

+70 −91

Original line number	Diff line number	Diff line
		@@ -8,6 +8,8 @@
		* Martin Schwidefsky <schwidefsky@de.ibm.com>
		*/

		#define KMSG_COMPONENT "tape"

		#include <linux/module.h>
		#include <linux/init.h>
		#include <linux/bio.h>
		@@ -18,8 +20,6 @@
		#include "tape.h"
		#include "tape_std.h"

		#define PRINTK_HEADER "TAPE_34XX: "

		/*
		* Pointer to debug area.
		*/
		@@ -203,8 +203,7 @@ tape_34xx_unsolicited_irq(struct tape_device device, struct irb irb)
		tape_34xx_schedule_work(device, TO_MSEN);
		} else {
		DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
		PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
		tape_dump_sense(device, NULL, irb);
		tape_dump_sense_dbf(device, NULL, irb);
		}
		return TAPE_IO_SUCCESS;
		}
		@@ -226,9 +225,7 @@ tape_34xx_erp_read_opposite(struct tape_device *device,
		tape_std_read_backward(device, request);
		return tape_34xx_erp_retry(request);
		}
		if (request->op != TO_RBA)
		PRINT_ERR("read_opposite called with state:%s\n",
		tape_op_verbose[request->op]);

		/*
		* We tried to read forward and backward, but hat no
		* success -> failed.
		@@ -241,13 +238,9 @@ tape_34xx_erp_bug(struct tape_device device, struct tape_request request,
		struct irb *irb, int no)
		{
		if (request->op != TO_ASSIGN) {
		PRINT_WARN("An unexpected condition #%d was caught in "
		"tape error recovery.\n", no);
		PRINT_WARN("Please report this incident.\n");
		if (request)
		PRINT_WARN("Operation of tape:%s\n",
		tape_op_verbose[request->op]);
		tape_dump_sense(device, request, irb);
		dev_err(&device->cdev->dev, "An unexpected condition %d "
		"occurred in tape error recovery\n", no);
		tape_dump_sense_dbf(device, request, irb);
		}
		return tape_34xx_erp_failed(request, -EIO);
		}
		@@ -261,9 +254,8 @@ tape_34xx_erp_overrun(struct tape_device device, struct tape_request request,
		struct irb *irb)
		{
		if (irb->ecw[3] == 0x40) {
		PRINT_WARN ("Data overrun error between control-unit "
		"and drive. Use a faster channel connection, "
		"if possible! \n");
		dev_warn (&device->cdev->dev, "A data overrun occurred between"
		" the control unit and tape unit\n");
		return tape_34xx_erp_failed(request, -EIO);
		}
		return tape_34xx_erp_bug(device, request, irb, -1);
		@@ -280,7 +272,8 @@ tape_34xx_erp_sequence(struct tape_device *device,
		/*
		* cu detected incorrect block-id sequence on tape.
		*/
		PRINT_WARN("Illegal block-id sequence found!\n");
		dev_warn (&device->cdev->dev, "The block ID sequence on the "
		"tape is incorrect\n");
		return tape_34xx_erp_failed(request, -EIO);
		}
		/*
		@@ -393,8 +386,6 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		/* Writing at physical end of volume */
		return tape_34xx_erp_failed(request, -ENOSPC);
		default:
		PRINT_ERR("Invalid op in %s:%i\n",
		__func__, __LINE__);
		return tape_34xx_erp_failed(request, 0);
		}
		}
		@@ -420,7 +411,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		irb, -4);

		/* data check is permanent, CU recovery has failed */
		PRINT_WARN("Permanent read error\n");
		dev_warn (&device->cdev->dev, "A read error occurred "
		"that cannot be recovered\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x25:
		// a write data check occurred
		@@ -433,22 +425,26 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		irb, -5);

		// data check is permanent, cu-recovery has failed
		PRINT_WARN("Permanent write error\n");
		dev_warn (&device->cdev->dev, "A write error on the "
		"tape cannot be recovered\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x26:
		/* Data Check (read opposite) occurred. */
		return tape_34xx_erp_read_opposite(device, request);
		case 0x28:
		/* ID-Mark at tape start couldn't be written */
		PRINT_WARN("ID-Mark could not be written.\n");
		dev_warn (&device->cdev->dev, "Writing the ID-mark "
		"failed\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x31:
		/* Tape void. Tried to read beyond end of device. */
		PRINT_WARN("Read beyond end of recorded area.\n");
		dev_warn (&device->cdev->dev, "Reading the tape beyond"
		" the end of the recorded area failed\n");
		return tape_34xx_erp_failed(request, -ENOSPC);
		case 0x41:
		/* Record sequence error. */
		PRINT_WARN("Invalid block-id sequence found.\n");
		dev_warn (&device->cdev->dev, "The tape contains an "
		"incorrect block ID sequence\n");
		return tape_34xx_erp_failed(request, -EIO);
		default:
		/* all data checks for 3480 should result in one of
		@@ -470,16 +466,12 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		switch (sense[3]) {
		case 0x00:
		/* Unit check with erpa code 0. Report and ignore. */
		PRINT_WARN("Non-error sense was found. "
		"Unit-check will be ignored.\n");
		return TAPE_IO_SUCCESS;
		case 0x21:
		/*
		* Data streaming not operational. CU will switch to
		* interlock mode. Reissue the command.
		*/
		PRINT_WARN("Data streaming not operational. "
		"Switching to interlock-mode.\n");
		return tape_34xx_erp_retry(request);
		case 0x22:
		/*
		@@ -487,11 +479,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* error on the lower interface, internal path not usable,
		* or error during cartridge load.
		*/
		PRINT_WARN("A path equipment check occurred. One of the "
		"following conditions occurred:\n");
		PRINT_WARN("drive adapter error, buffer error on the lower "
		"interface, internal path not usable, error "
		"during cartridge load.\n");
		dev_warn (&device->cdev->dev, "A path equipment check occurred"
		" for the tape device\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x24:
		/*
		@@ -514,7 +503,6 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* but the hardware isn't capable to do idrc, or a perform
		* subsystem func is issued and the CU is not on-line.
		*/
		PRINT_WARN ("Function incompatible. Try to switch off idrc\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x2a:
		/*
		@@ -552,23 +540,26 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* reading the format id mark or that that format specified
		* is not supported by the drive.
		*/
		PRINT_WARN("Drive not capable processing the tape format!\n");
		dev_warn (&device->cdev->dev, "The tape unit cannot process "
		"the tape format\n");
		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
		case 0x30:
		/* The medium is write protected. */
		PRINT_WARN("Medium is write protected!\n");
		dev_warn (&device->cdev->dev, "The tape medium is write-"
		"protected\n");
		return tape_34xx_erp_failed(request, -EACCES);
		case 0x32:
		// Tension loss. We cannot recover this, it's an I/O error.
		PRINT_WARN("The drive lost tape tension.\n");
		dev_warn (&device->cdev->dev, "The tape does not have the "
		"required tape tension\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x33:
		/*
		* Load Failure. The cartridge was not inserted correctly or
		* the tape is not threaded correctly.
		*/
		PRINT_WARN("Cartridge load failure. Reload the cartridge "
		"and try again.\n");
		dev_warn (&device->cdev->dev, "The tape unit failed to load"
		" the cartridge\n");
		tape_34xx_delete_sbid_from(device, 0);
		return tape_34xx_erp_failed(request, -EIO);
		case 0x34:
		@@ -576,8 +567,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* Unload failure. The drive cannot maintain tape tension
		* and control tape movement during an unload operation.
		*/
		PRINT_WARN("Failure during cartridge unload. "
		"Please try manually.\n");
		dev_warn (&device->cdev->dev, "Automatic unloading of the tape"
		" cartridge failed\n");
		if (request->op == TO_RUN)
		return tape_34xx_erp_failed(request, -EIO);
		return tape_34xx_erp_bug(device, request, irb, sense[3]);
		@@ -589,8 +580,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* - the cartridge loader does not respond correctly
		* - a failure occurs during an index, load, or unload cycle
		*/
		PRINT_WARN("Equipment check! Please check the drive and "
		"the cartridge loader.\n");
		dev_warn (&device->cdev->dev, "An equipment check has occurred"
		" on the tape unit\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x36:
		if (device->cdev->id.driver_info == tape_3490)
		@@ -603,7 +594,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* Tape length error. The tape is shorter than reported in
		* the beginning-of-tape data.
		*/
		PRINT_WARN("Tape length error.\n");
		dev_warn (&device->cdev->dev, "The tape information states an"
		" incorrect length\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x38:
		/*
		@@ -620,12 +612,12 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		return tape_34xx_erp_failed(request, -EIO);
		case 0x3a:
		/* Drive switched to not ready. */
		PRINT_WARN("Drive not ready. Turn the ready/not ready switch "
		"to ready position and try again.\n");
		dev_warn (&device->cdev->dev, "The tape unit is not ready\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x3b:
		/* Manual rewind or unload. This causes an I/O error. */
		PRINT_WARN("Medium was rewound or unloaded manually.\n");
		dev_warn (&device->cdev->dev, "The tape medium has been "
		"rewound or unloaded manually\n");
		tape_34xx_delete_sbid_from(device, 0);
		return tape_34xx_erp_failed(request, -EIO);
		case 0x42:
		@@ -633,7 +625,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* Degraded mode. A condition that can cause degraded
		* performance is detected.
		*/
		PRINT_WARN("Subsystem is running in degraded mode.\n");
		dev_warn (&device->cdev->dev, "The tape subsystem is running "
		"in degraded mode\n");
		return tape_34xx_erp_retry(request);
		case 0x43:
		/* Drive not ready. */
		@@ -652,7 +645,6 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		break;
		}
		}
		PRINT_WARN("The drive is not ready.\n");
		return tape_34xx_erp_failed(request, -ENOMEDIUM);
		case 0x44:
		/* Locate Block unsuccessful. */
		@@ -663,7 +655,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		return tape_34xx_erp_failed(request, -EIO);
		case 0x45:
		/* The drive is assigned to a different channel path. */
		PRINT_WARN("The drive is assigned elsewhere.\n");
		dev_warn (&device->cdev->dev, "The tape unit is already "
		"assigned\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x46:
		/*
		@@ -671,11 +664,12 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* the power supply may be switched off or
		* the drive address may not be set correctly.
		*/
		PRINT_WARN("The drive is not on-line.");
		dev_warn (&device->cdev->dev, "The tape unit is not online\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x47:
		/* Volume fenced. CU reports volume integrity is lost. */
		PRINT_WARN("Volume fenced. The volume integrity is lost.\n");
		dev_warn (&device->cdev->dev, "The control unit has fenced "
		"access to the tape volume\n");
		tape_34xx_delete_sbid_from(device, 0);
		return tape_34xx_erp_failed(request, -EIO);
		case 0x48:
		@@ -683,20 +677,21 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		return tape_34xx_erp_retry(request);
		case 0x49:
		/* Bus out check. A parity check error on the bus was found. */
		PRINT_WARN("Bus out check. A data transfer over the bus "
		"has been corrupted.\n");
		dev_warn (&device->cdev->dev, "A parity error occurred on the "
		"tape bus\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x4a:
		/* Control unit erp failed. */
		PRINT_WARN("The control unit I/O error recovery failed.\n");
		dev_warn (&device->cdev->dev, "I/O error recovery failed on "
		"the tape control unit\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x4b:
		/*
		* CU and drive incompatible. The drive requests micro-program
		* patches, which are not available on the CU.
		*/
		PRINT_WARN("The drive needs microprogram patches from the "
		"control unit, which are not available.\n");
		dev_warn (&device->cdev->dev, "The tape unit requires a "
		"firmware update\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x4c:
		/*
		@@ -721,8 +716,8 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* the block to be written is larger than allowed for
		* buffered mode.
		*/
		PRINT_WARN("Maximum block size for buffered "
		"mode exceeded.\n");
		dev_warn (&device->cdev->dev, "The maximum block size"
		" for buffered mode is exceeded\n");
		return tape_34xx_erp_failed(request, -ENOBUFS);
		}
		/* This erpa is reserved for 3480. */
		@@ -759,22 +754,20 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		return tape_34xx_erp_retry(request);
		case 0x55:
		/* Channel interface recovery (permanent). */
		PRINT_WARN("A permanent channel interface error occurred.\n");
		dev_warn (&device->cdev->dev, "A channel interface error cannot be"
		" recovered\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x56:
		/* Channel protocol error. */
		PRINT_WARN("A channel protocol error occurred.\n");
		dev_warn (&device->cdev->dev, "A channel protocol error "
		"occurred\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x57:
		if (device->cdev->id.driver_info == tape_3480) {
		/* Attention intercept. */
		PRINT_WARN("An attention intercept occurred, "
		"which will be recovered.\n");
		return tape_34xx_erp_retry(request);
		} else {
		/* Global status intercept. */
		PRINT_WARN("An global status intercept was received, "
		"which will be recovered.\n");
		return tape_34xx_erp_retry(request);
		}
		case 0x5a:
		@@ -782,42 +775,31 @@ tape_34xx_unit_check(struct tape_device device, struct tape_request request,
		* Tape length incompatible. The tape inserted is too long,
		* which could cause damage to the tape or the drive.
		*/
		PRINT_WARN("Tape Length Incompatible\n");
		PRINT_WARN("Tape length exceeds IBM enhanced capacity "
		"cartdridge length or a medium\n");
		PRINT_WARN("with EC-CST identification mark has been mounted "
		"in a device that writes\n");
		PRINT_WARN("3480 or 3480 XF format.\n");
		dev_warn (&device->cdev->dev, "The tape unit does not support "
		"the tape length\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x5b:
		/* Format 3480 XF incompatible */
		if (sense[1] & SENSE_BEGINNING_OF_TAPE)
		/* The tape will get overwritten. */
		return tape_34xx_erp_retry(request);
		PRINT_WARN("Format 3480 XF Incompatible\n");
		PRINT_WARN("Medium has been created in 3480 format. "
		"To change the format writes\n");
		PRINT_WARN("must be issued at BOT.\n");
		dev_warn (&device->cdev->dev, "The tape unit does not support"
		" format 3480 XF\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x5c:
		/* Format 3480-2 XF incompatible */
		PRINT_WARN("Format 3480-2 XF Incompatible\n");
		PRINT_WARN("Device can only read 3480 or 3480 XF format.\n");
		dev_warn (&device->cdev->dev, "The tape unit does not support tape "
		"format 3480-2 XF\n");
		return tape_34xx_erp_failed(request, -EIO);
		case 0x5d:
		/* Tape length violation. */
		PRINT_WARN("Tape Length Violation\n");
		PRINT_WARN("The mounted tape exceeds IBM Enhanced Capacity "
		"Cartdridge System Tape length.\n");
		PRINT_WARN("This may cause damage to the drive or tape when "
		"processing to the EOV\n");
		dev_warn (&device->cdev->dev, "The tape unit does not support"
		" the current tape length\n");
		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);
		case 0x5e:
		/* Compaction algorithm incompatible. */
		PRINT_WARN("Compaction Algorithm Incompatible\n");
		PRINT_WARN("The volume is recorded using an incompatible "
		"compaction algorithm,\n");
		PRINT_WARN("which is not supported by the device.\n");
		dev_warn (&device->cdev->dev, "The tape unit does not support"
		" the compaction algorithm\n");
		return tape_34xx_erp_failed(request, -EMEDIUMTYPE);

		/* The following erpas should have been covered earlier. */
		@@ -848,7 +830,6 @@ tape_34xx_irq(struct tape_device device, struct tape_request request,
		(irb->scsw.cmd.dstat & DEV_STAT_DEV_END) &&
		(request->op == TO_WRI)) {
		/* Write at end of volume */
		PRINT_INFO("End of volume\n"); /* XXX */
		return tape_34xx_erp_failed(request, -ENOSPC);
		}

		@@ -869,9 +850,7 @@ tape_34xx_irq(struct tape_device device, struct tape_request request,
		}

		DBF_EVENT(6, "xunknownirq\n");
		PRINT_ERR("Unexpected interrupt.\n");
		PRINT_ERR("Current op is: %s", tape_op_verbose[request->op]);
		tape_dump_sense(device, request, irb);
		tape_dump_sense_dbf(device, request, irb);
		return TAPE_IO_STOP;
		}