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fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git] / drivers / s390 / cio / device_id.c
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index 0e68fb5..f172759 100644 (file)
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -3,14 +3,13 @@
  *
  *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH,
  *                      IBM Corporation
- *    Author(s): Cornelia Huck(cohuck@de.ibm.com)
+ *    Author(s): Cornelia Huck (cornelia.huck@de.ibm.com)
  *              Martin Schwidefsky (schwidefsky@de.ibm.com)
  *
  * Sense ID functions.
  */
 
 #include <linux/module.h>
-#include <linux/config.h>
 #include <linux/init.h>
 
 #include <asm/ccwdev.h>
@@ -27,7 +26,7 @@
 /*
  * diag210 is used under VM to get information about a virtual device
  */
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
 int
 diag210(struct diag210 * addr)
 {
@@ -43,18 +42,15 @@ diag210(struct diag210 * addr)
        spin_lock_irqsave(&diag210_lock, flags);
        diag210_tmp = *addr;
 
-       asm volatile (
-               "   lhi   %0,-1\n"
-               "   sam31\n"
-               "   diag  %1,0,0x210\n"
-               "0: ipm   %0\n"
-               "   srl   %0,28\n"
-               "1: sam64\n"
-               ".section __ex_table,\"a\"\n"
-               "    .align 8\n"
-               "    .quad 0b,1b\n"
-               ".previous"
-               : "=&d" (ccode) : "a" (__pa(&diag210_tmp)) : "cc", "memory" );
+       asm volatile(
+               "       lhi     %0,-1\n"
+               "       sam31\n"
+               "       diag    %1,0,0x210\n"
+               "0:     ipm     %0\n"
+               "       srl     %0,28\n"
+               "1:     sam64\n"
+               EX_TABLE(0b,1b)
+               : "=&d" (ccode) : "a" (__pa(&diag210_tmp)) : "cc", "memory");
 
        *addr = diag210_tmp;
        spin_unlock_irqrestore(&diag210_lock, flags);
@@ -67,17 +63,14 @@ diag210(struct diag210 * addr)
 {
        int ccode;
 
-       asm volatile (
-               "   lhi   %0,-1\n"
-               "   diag  %1,0,0x210\n"
-               "0: ipm   %0\n"
-               "   srl   %0,28\n"
+       asm volatile(
+               "       lhi     %0,-1\n"
+               "       diag    %1,0,0x210\n"
+               "0:     ipm     %0\n"
+               "       srl     %0,28\n"
                "1:\n"
-               ".section __ex_table,\"a\"\n"
-               "    .align 4\n"
-               "    .long 0b,1b\n"
-               ".previous"
-               : "=&d" (ccode) : "a" (__pa(addr)) : "cc", "memory" );
+               EX_TABLE(0b,1b)
+               : "=&d" (ccode) : "a" (__pa(addr)) : "cc", "memory");
 
        return ccode;
 }
@@ -198,6 +191,8 @@ __ccw_device_sense_id_start(struct ccw_device *cdev)
                if ((sch->opm & cdev->private->imask) != 0 &&
                    cdev->private->iretry > 0) {
                        cdev->private->iretry--;
+                       /* Reset internal retry indication. */
+                       cdev->private->flags.intretry = 0;
                        ret = cio_start (sch, cdev->private->iccws,
                                         cdev->private->imask);
                        /* ret is 0, -EBUSY, -EACCES or -ENODEV */
@@ -244,8 +239,14 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
                return 0; /* Success */
        }
        /* Check the error cases. */
-       if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC))
+       if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) {
+               /* Retry Sense ID if requested. */
+               if (cdev->private->flags.intretry) {
+                       cdev->private->flags.intretry = 0;
+                       return -EAGAIN;
+               }
                return -ETIME;
+       }
        if (irb->esw.esw0.erw.cons && (irb->ecw[0] & SNS0_CMD_REJECT)) {
                /*
                 * if the device doesn't support the SenseID
@@ -256,16 +257,18 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
                 *     sense id information. So, for intervention required,
                 *     we use the "whack it until it talks" strategy...
                 */
-               CIO_MSG_EVENT(2, "SenseID : device %04x on Subchannel %04x "
-                             "reports cmd reject\n",
-                             cdev->private->devno, sch->irq);
+               CIO_MSG_EVENT(2, "SenseID : device %04x on Subchannel "
+                             "0.%x.%04x reports cmd reject\n",
+                             cdev->private->dev_id.devno, sch->schid.ssid,
+                             sch->schid.sch_no);
                return -EOPNOTSUPP;
        }
        if (irb->esw.esw0.erw.cons) {
-               CIO_MSG_EVENT(2, "SenseID : UC on dev %04x, "
+               CIO_MSG_EVENT(2, "SenseID : UC on dev 0.%x.%04x, "
                              "lpum %02X, cnt %02d, sns :"
                              " %02X%02X%02X%02X %02X%02X%02X%02X ...\n",
-                             cdev->private->devno,
+                             cdev->private->dev_id.ssid,
+                             cdev->private->dev_id.devno,
                              irb->esw.esw0.sublog.lpum,
                              irb->esw.esw0.erw.scnt,
                              irb->ecw[0], irb->ecw[1],
@@ -277,16 +280,18 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
        if (irb->scsw.cc == 3) {
                if ((sch->orb.lpm &
                     sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0)
-                       CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x on"
-                                     " subchannel %04x is 'not operational'\n",
-                                     sch->orb.lpm, cdev->private->devno,
-                                     sch->irq);
+                       CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x "
+                                     "on subchannel 0.%x.%04x is "
+                                     "'not operational'\n", sch->orb.lpm,
+                                     cdev->private->dev_id.devno,
+                                     sch->schid.ssid, sch->schid.sch_no);
                return -EACCES;
        }
        /* Hmm, whatever happened, try again. */
        CIO_MSG_EVENT(2, "SenseID : start_IO() for device %04x on "
-                     "subchannel %04x returns status %02X%02X\n",
-                     cdev->private->devno, sch->irq,
+                     "subchannel 0.%x.%04x returns status %02X%02X\n",
+                     cdev->private->dev_id.devno, sch->schid.ssid,
+                     sch->schid.sch_no,
                      irb->scsw.dstat, irb->scsw.cstat);
        return -EAGAIN;
 }
@@ -335,7 +340,7 @@ ccw_device_sense_id_irq(struct ccw_device *cdev, enum dev_event dev_event)
                /* fall through. */
        default:                /* Sense ID failed. Try asking VM. */
                if (MACHINE_IS_VM) {
-                       VM_virtual_device_info (cdev->private->devno,
+                       VM_virtual_device_info (cdev->private->dev_id.devno,
                                                &cdev->private->senseid);
                        if (cdev->private->senseid.cu_type != 0xFFFF) {
                                /* Got the device information from VM. */
linux-2.6