diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:14:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-31 16:14:20 -0700 |
| commit | 32087d4eeca14b82660dab288b1d659963b954bd (patch) | |
| tree | 8c131ca9bf08f88d3b02e1937b795a42f8951d79 /drivers/s390/cio/ccwreq.c | |
| parent | b1c907f3b2675ecb01e340948fc62d6535ff5ac3 (diff) | |
| parent | 07ea815b22b9f70ec8de6ddf8db63a1dd1585caf (diff) | |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (54 commits)
[S390] Remove error checking from copy_oldmem_page()
[S390] qdio: prevent dsci access without adapter interrupts
[S390] irqstats: split IPI interrupt accounting
[S390] add missing __tlb_flush_global() for !CONFIG_SMP
[S390] sparse: fix sparse symbol shadow warning
[S390] sparse: fix sparse NULL pointer warnings
[S390] sparse: fix sparse warnings with __user pointers
[S390] sparse: fix sparse warnings in math-emu
[S390] sparse: fix sparse warnings about missing prototypes
[S390] sparse: fix sparse ANSI-C warnings
[S390] sparse: fix sparse static warnings
[S390] sparse: fix access past end of array warnings
[S390] dasd: prevent path verification before resume
[S390] qdio: remove multicast polling
[S390] qdio: reset outbound SBAL error states
[S390] qdio: EQBS retry after CCQ 96
[S390] qdio: add timestamp for last queue scan time
[S390] Introduce get_clock_fast()
[S390] kvm: Handle diagnose 0x10 (release pages)
[S390] take mmap_sem when walking guest page table
...
Diffstat (limited to 'drivers/s390/cio/ccwreq.c')
| -rw-r--r-- | drivers/s390/cio/ccwreq.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c index d15f8b4d78b..5156264d0c7 100644 --- a/drivers/s390/cio/ccwreq.c +++ b/drivers/s390/cio/ccwreq.c @@ -1,10 +1,13 @@ /* * Handling of internal CCW device requests. * - * Copyright IBM Corp. 2009 + * Copyright IBM Corp. 2009, 2011 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ +#define KMSG_COMPONENT "cio" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/types.h> #include <linux/err.h> #include <asm/ccwdev.h> @@ -323,7 +326,21 @@ void ccw_request_timeout(struct ccw_device *cdev) { struct subchannel *sch = to_subchannel(cdev->dev.parent); struct ccw_request *req = &cdev->private->req; - int rc; + int rc = -ENODEV, chp; + + if (cio_update_schib(sch)) + goto err; + + for (chp = 0; chp < 8; chp++) { + if ((0x80 >> chp) & sch->schib.pmcw.lpum) + pr_warning("%s: No interrupt was received within %lus " + "(CS=%02x, DS=%02x, CHPID=%x.%02x)\n", + dev_name(&cdev->dev), req->timeout / HZ, + scsw_cstat(&sch->schib.scsw), + scsw_dstat(&sch->schib.scsw), + sch->schid.cssid, + sch->schib.pmcw.chpid[chp]); + } if (!ccwreq_next_path(cdev)) { /* set the final return code for this request */ @@ -342,7 +359,7 @@ err: * ccw_request_notoper - notoper handler for I/O request procedure * @cdev: ccw device * - * Handle timeout during I/O request procedure. + * Handle notoper during I/O request procedure. */ void ccw_request_notoper(struct ccw_device *cdev) { |