diff options
Diffstat (limited to 'drivers/s390/block/dasd_diag.c')
| -rw-r--r-- | drivers/s390/block/dasd_diag.c | 50 |
1 files changed, 32 insertions, 18 deletions
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 4e49b4a6c88..6e14863f5c7 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -8,7 +8,7 @@ * */ -#define KMSG_COMPONENT "dasd-diag" +#define KMSG_COMPONENT "dasd" #include <linux/stddef.h> #include <linux/kernel.h> @@ -24,7 +24,6 @@ #include <asm/ebcdic.h> #include <asm/io.h> #include <asm/s390_ext.h> -#include <asm/todclk.h> #include <asm/vtoc.h> #include <asm/diag.h> @@ -145,9 +144,18 @@ dasd_diag_erp(struct dasd_device *device) mdsk_term_io(device); rc = mdsk_init_io(device, device->block->bp_block, 0, NULL); + if (rc == 4) { + if (!(device->features & DASD_FEATURE_READONLY)) { + pr_warning("%s: The access mode of a DIAG device " + "changed to read-only\n", + dev_name(&device->cdev->dev)); + device->features |= DASD_FEATURE_READONLY; + } + rc = 0; + } if (rc) - dev_warn(&device->cdev->dev, "DIAG ERP failed with " - "rc=%d\n", rc); + pr_warning("%s: DIAG ERP failed with " + "rc=%d\n", dev_name(&device->cdev->dev), rc); } /* Start a given request at the device. Return zero on success, non-zero @@ -363,8 +371,9 @@ dasd_diag_check_device(struct dasd_device *device) private->pt_block = 2; break; default: - dev_warn(&device->cdev->dev, "Device type %d is not supported " - "in DIAG mode\n", private->rdc_data.vdev_class); + pr_warning("%s: Device type %d is not supported " + "in DIAG mode\n", dev_name(&device->cdev->dev), + private->rdc_data.vdev_class); rc = -EOPNOTSUPP; goto out; } @@ -405,8 +414,8 @@ dasd_diag_check_device(struct dasd_device *device) private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT; rc = dia250(&private->iob, RW_BIO); if (rc == 3) { - dev_warn(&device->cdev->dev, - "A 64-bit DIAG call failed\n"); + pr_warning("%s: A 64-bit DIAG call failed\n", + dev_name(&device->cdev->dev)); rc = -EOPNOTSUPP; goto out_label; } @@ -415,8 +424,9 @@ dasd_diag_check_device(struct dasd_device *device) break; } if (bsize > PAGE_SIZE) { - dev_warn(&device->cdev->dev, "Accessing the DASD failed because" - " of an incorrect format (rc=%d)\n", rc); + pr_warning("%s: Accessing the DASD failed because of an " + "incorrect format (rc=%d)\n", + dev_name(&device->cdev->dev), rc); rc = -EIO; goto out_label; } @@ -433,16 +443,20 @@ dasd_diag_check_device(struct dasd_device *device) for (sb = 512; sb < bsize; sb = sb << 1) block->s2b_shift++; rc = mdsk_init_io(device, block->bp_block, 0, NULL); - if (rc) { - dev_warn(&device->cdev->dev, "DIAG initialization " - "failed with rc=%d\n", rc); + if (rc && (rc != 4)) { + pr_warning("%s: DIAG initialization failed with rc=%d\n", + dev_name(&device->cdev->dev), rc); rc = -EIO; } else { - dev_info(&device->cdev->dev, - "New DASD with %ld byte/block, total size %ld KB\n", - (unsigned long) block->bp_block, - (unsigned long) (block->blocks << - block->s2b_shift) >> 1); + if (rc == 4) + device->features |= DASD_FEATURE_READONLY; + pr_info("%s: New DASD with %ld byte/block, total size %ld " + "KB%s\n", dev_name(&device->cdev->dev), + (unsigned long) block->bp_block, + (unsigned long) (block->blocks << + block->s2b_shift) >> 1, + (rc == 4) ? ", read-only device" : ""); + rc = 0; } out_label: free_page((long) label); |