11 files changed, 52 insertions, 57 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 4b76fca64a6f..363bd1303d21 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1746,6 +1746,11 @@ restart:
                         goto restart;
                 }
 
+                /* log sense for fatal error */
+                if (cqr->status == DASD_CQR_FAILED) {
+                        dasd_log_sense(cqr, &cqr->irb);
+                }
+
                 /* First of all call extended error reporting. */
                 if (dasd_eer_enabled(base) &&
                     cqr->status == DASD_CQR_FAILED) {
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index eb5f1b8bc57f..ec9c0bcf66ee 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -324,6 +324,9 @@ static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
         case 0x0120:
                 break;
         default:
+                pr_warning("assign storage failed (cmd=0x%08x, "
+                           "response=0x%04x, rn=0x%04x)\n", cmd,
+                           sccb->header.response_code, rn);
                 rc = -EIO;
                 break;
         }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 4e78c82194b4..4e4008325e28 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -874,11 +874,15 @@ void ccw_device_move_to_orphanage(struct work_struct *work)
         replacing_cdev = get_disc_ccwdev_by_dev_id(&dev_id, cdev);
         if (replacing_cdev) {
                 sch_attach_disconnected_device(sch, replacing_cdev);
+                /* Release reference from get_disc_ccwdev_by_dev_id() */
+                put_device(&cdev->dev);
                 return;
         }
         replacing_cdev = get_orphaned_ccwdev_by_dev_id(css, &dev_id);
         if (replacing_cdev) {
                 sch_attach_orphaned_device(sch, replacing_cdev);
+                /* Release reference from get_orphaned_ccwdev_by_dev_id() */
+                put_device(&cdev->dev);
                 return;
         }
         sch_create_and_recog_new_device(sch);
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index ff4a6931bb8e..3d442444c618 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -322,13 +322,13 @@ static int __init kvm_devices_init(void)
                 return rc;
         }
 
-        rc = vmem_add_mapping(PFN_PHYS(max_pfn), PAGE_SIZE);
+        rc = vmem_add_mapping(real_memory_size, PAGE_SIZE);
         if (rc) {
                 s390_root_dev_unregister(kvm_root);
                 return rc;
         }
 
-        kvm_devices = (void *) PFN_PHYS(max_pfn);
+        kvm_devices = (void *) real_memory_size;
 
         ctl_set_bit(0, 9);
         register_external_interrupt(0x2603, kvm_extint_handler);
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 3b56220fb900..3d4e3e3f3fc0 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -610,7 +610,8 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
         atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
         atomic_set(&port->refcount, 0);
 
-        dev_set_name(&port->sysfs_device, "0x%016llx", wwpn);
+        dev_set_name(&port->sysfs_device, "0x%016llx",
+                     (unsigned long long)wwpn);
         port->sysfs_device.parent = &adapter->ccw_device->dev;
 
         port->sysfs_device.release = zfcp_sysfs_port_release;
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index b04038c74786..951a8d409d1d 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -116,7 +116,9 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device)
         zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85,
                                 NULL);
         zfcp_erp_wait(adapter);
-        goto out;
+        up(&zfcp_data.config_sema);
+        flush_work(&adapter->scan_work);
+        return 0;
 
  out_scsi_register:
         zfcp_erp_thread_kill(adapter);
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 060f5f2352ec..31012d58cfb7 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -30,7 +30,7 @@ static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
                 dump->offset = offset;
                 dump->size = min(from_len - offset, room);
                 memcpy(dump->data, from + offset, dump->size);
-                debug_event(dbf, level, dump, dump->size);
+                debug_event(dbf, level, dump, dump->size + sizeof(*dump));
         }
 }
 
@@ -108,7 +108,7 @@ static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view,
                              t.tv_sec, t.tv_nsec);
                 zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
         } else  {
-                zfcp_dbf_outd(&p, NULL, dump->data, dump->size, dump->offset,
+                zfcp_dbf_outd(&p, "", dump->data, dump->size, dump->offset,
                               dump->total_size);
                 if ((dump->offset + dump->size) == dump->total_size)
                         p += sprintf(p, "\n");
@@ -366,6 +366,7 @@ static void zfcp_hba_dbf_view_response(char **p,
                         break;
                 zfcp_dbf_out(p, "scsi_cmnd", "0x%0Lx", r->u.fcp.cmnd);
                 zfcp_dbf_out(p, "scsi_serial", "0x%016Lx", r->u.fcp.serial);
+                p += sprintf(*p, "\n");
                 break;
 
         case FSF_QTCB_OPEN_PORT_WITH_DID:
@@ -465,7 +466,8 @@ static int zfcp_hba_dbf_view_format(debug_info_t *id, struct debug_view *view,
         else if (strncmp(r->tag, "berr", ZFCP_DBF_TAG_SIZE) == 0)
                 zfcp_hba_dbf_view_berr(&p, &r->u.berr);
 
-        p += sprintf(p, "\n");
+        if (strncmp(r->tag, "resp", ZFCP_DBF_TAG_SIZE) != 0)
+                p += sprintf(p, "\n");
         return p - out_buf;
 }
 
@@ -880,6 +882,7 @@ void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
         struct ct_hdr *hdr = sg_virt(ct->req);
         struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
         struct zfcp_san_dbf_record_ct_request *oct = &r->u.ct_req;
+        int level = 3;
         unsigned long flags;
 
         spin_lock_irqsave(&adapter->san_dbf_lock, flags);
@@ -896,9 +899,10 @@ void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
         oct->options = hdr->options;
         oct->max_res_size = hdr->max_res_size;
         oct->len = min((int)ct->req->length - (int)sizeof(struct ct_hdr),
-                       ZFCP_DBF_CT_PAYLOAD);
-        memcpy(oct->payload, (void *)hdr + sizeof(struct ct_hdr), oct->len);
-        debug_event(adapter->san_dbf, 3, r, sizeof(*r));
+                       ZFCP_DBF_SAN_MAX_PAYLOAD);
+        debug_event(adapter->san_dbf, level, r, sizeof(*r));
+        zfcp_dbf_hexdump(adapter->san_dbf, r, sizeof(*r), level,
+                         (void *)hdr + sizeof(struct ct_hdr), oct->len);
         spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
 }
 
@@ -914,6 +918,7 @@ void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
         struct ct_hdr *hdr = sg_virt(ct->resp);
         struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
         struct zfcp_san_dbf_record_ct_response *rct = &r->u.ct_resp;
+        int level = 3;
         unsigned long flags;
 
         spin_lock_irqsave(&adapter->san_dbf_lock, flags);
@@ -929,9 +934,10 @@ void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
         rct->expl = hdr->reason_code_expl;
         rct->vendor_unique = hdr->vendor_unique;
         rct->len = min((int)ct->resp->length - (int)sizeof(struct ct_hdr),
-                       ZFCP_DBF_CT_PAYLOAD);
-        memcpy(rct->payload, (void *)hdr + sizeof(struct ct_hdr), rct->len);
-        debug_event(adapter->san_dbf, 3, r, sizeof(*r));
+                       ZFCP_DBF_SAN_MAX_PAYLOAD);
+        debug_event(adapter->san_dbf, level, r, sizeof(*r));
+        zfcp_dbf_hexdump(adapter->san_dbf, r, sizeof(*r), level,
+                         (void *)hdr + sizeof(struct ct_hdr), rct->len);
         spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
 }
 
@@ -954,7 +960,7 @@ static void zfcp_san_dbf_event_els(const char *tag, int level,
         rec->u.els.ls_code = ls_code;
         debug_event(adapter->san_dbf, level, rec, sizeof(*rec));
         zfcp_dbf_hexdump(adapter->san_dbf, rec, sizeof(*rec), level,
-                         buffer, min(buflen, ZFCP_DBF_ELS_MAX_PAYLOAD));
+                         buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
         spin_unlock_irqrestore(&adapter->san_dbf_lock, flags);
 }
 
@@ -1008,8 +1014,6 @@ static int zfcp_san_dbf_view_format(debug_info_t *id, struct debug_view *view,
                                     char *out_buf, const char *in_buf)
 {
         struct zfcp_san_dbf_record *r = (struct zfcp_san_dbf_record *)in_buf;
-        char *buffer = NULL;
-        int buflen = 0, total = 0;
         char *p = out_buf;
 
         if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
@@ -1029,9 +1033,6 @@ static int zfcp_san_dbf_view_format(debug_info_t *id, struct debug_view *view,
                 zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
                 zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
                 zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
-                total = ct->len;
-                buffer = ct->payload;
-                buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
         } else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
                 struct zfcp_san_dbf_record_ct_response *ct = &r->u.ct_resp;
                 zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
@@ -1039,23 +1040,12 @@ static int zfcp_san_dbf_view_format(debug_info_t *id, struct debug_view *view,
                 zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
                 zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
                 zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
-                total = ct->len;
-                buffer = ct->payload;
-                buflen = min(total, ZFCP_DBF_CT_PAYLOAD);
         } else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
                    strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
                    strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
                 struct zfcp_san_dbf_record_els *els = &r->u.els;
                 zfcp_dbf_out(&p, "ls_code", "0x%02x", els->ls_code);
-                total = els->len;
-                buffer = els->payload;
-                buflen = min(total, ZFCP_DBF_ELS_PAYLOAD);
         }
-
-        zfcp_dbf_outd(&p, "payload", buffer, buflen, 0, total);
-        if (buflen == total)
-                p += sprintf(p, "\n");
-
         return p - out_buf;
 }
 
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index e8f450801fea..5d6b2dff855b 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -163,8 +163,6 @@ struct zfcp_san_dbf_record_ct_request {
         u8 options;
         u16 max_res_size;
         u32 len;
-#define ZFCP_DBF_CT_PAYLOAD     24
-        u8 payload[ZFCP_DBF_CT_PAYLOAD];
 } __attribute__ ((packed));
 
 struct zfcp_san_dbf_record_ct_response {
@@ -174,15 +172,11 @@ struct zfcp_san_dbf_record_ct_response {
         u8 expl;
         u8 vendor_unique;
         u32 len;
-        u8 payload[ZFCP_DBF_CT_PAYLOAD];
 } __attribute__ ((packed));
 
 struct zfcp_san_dbf_record_els {
         u8 ls_code;
         u32 len;
-#define ZFCP_DBF_ELS_PAYLOAD    32
-#define ZFCP_DBF_ELS_MAX_PAYLOAD 1024
-        u8 payload[ZFCP_DBF_ELS_PAYLOAD];
 } __attribute__ ((packed));
 
 struct zfcp_san_dbf_record {
@@ -196,6 +190,8 @@ struct zfcp_san_dbf_record {
                 struct zfcp_san_dbf_record_ct_response ct_resp;
                 struct zfcp_san_dbf_record_els els;
         } u;
+#define ZFCP_DBF_SAN_MAX_PAYLOAD 1024
+        u8 payload[32];
 } __attribute__ ((packed));
 
 struct zfcp_scsi_dbf_record {
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 9040f738ff33..35364f64da7f 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -472,6 +472,7 @@ static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act)
                                    ZFCP_STATUS_ERP_TIMEDOUT)) {
                         act->fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
                         zfcp_rec_dbf_event_action(142, act);
+                        act->fsf_req->erp_action = NULL;
                 }
                 if (act->status & ZFCP_STATUS_ERP_TIMEDOUT)
                         zfcp_rec_dbf_event_action(143, act);
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 5ae1d497e5ed..d024442ee128 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -683,6 +683,7 @@ static struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool)
         if (!req)
                 return NULL;
         memset(req, 0, sizeof(*req));
+        req->pool = pool;
         return req;
 }
 
@@ -769,28 +770,24 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
 static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
 {
         struct zfcp_adapter *adapter = req->adapter;
-        struct zfcp_qdio_queue *req_q = &adapter->req_q;
+        unsigned long flags;
         int idx;
 
         /* put allocated FSF request into hash table */
-        spin_lock(&adapter->req_list_lock);
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
         idx = zfcp_reqlist_hash(req->req_id);
         list_add_tail(&req->list, &adapter->req_list[idx]);
-        spin_unlock(&adapter->req_list_lock);
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
 
-        req->qdio_outb_usage = atomic_read(&req_q->count);
+        req->qdio_outb_usage = atomic_read(&adapter->req_q.count);
         req->issued = get_clock();
         if (zfcp_qdio_send(req)) {
-                /* Queues are down..... */
                 del_timer(&req->timer);
-                spin_lock(&adapter->req_list_lock);
-                zfcp_reqlist_remove(adapter, req);
-                spin_unlock(&adapter->req_list_lock);
-                /* undo changes in request queue made for this request */
-                atomic_add(req->sbal_number, &req_q->count);
-                req_q->first -= req->sbal_number;
-                req_q->first += QDIO_MAX_BUFFERS_PER_Q;
-                req_q->first %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */
+                spin_lock_irqsave(&adapter->req_list_lock, flags);
+                /* lookup request again, list might have changed */
+                if (zfcp_reqlist_find_safe(adapter, req))
+                        zfcp_reqlist_remove(adapter, req);
+                spin_unlock_irqrestore(&adapter->req_list_lock, flags);
                 zfcp_erp_adapter_reopen(adapter, 0, 116, req);
                 return -EIO;
         }
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index ca8f85f3dad4..e46fd3e9f68f 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -24,14 +24,10 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
 static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 {
         struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
-        WARN_ON(!unit);
-        if (unit) {
-                atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
-                sdpnt->hostdata = NULL;
-                unit->device = NULL;
-                zfcp_erp_unit_failed(unit, 12, NULL);
-                zfcp_unit_put(unit);
-        }
+        atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
+        unit->device = NULL;
+        zfcp_erp_unit_failed(unit, 12, NULL);
+        zfcp_unit_put(unit);
 }
 
 static int zfcp_scsi_slave_configure(struct scsi_device *sdp)