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-rw-r--r--drivers/s390/block/dasd.c23
-rw-r--r--drivers/s390/block/dasd_3990_erp.c8
-rw-r--r--drivers/s390/block/dasd_alias.c4
-rw-r--r--drivers/s390/block/dasd_diag.c10
-rw-r--r--drivers/s390/block/dasd_eckd.c30
-rw-r--r--drivers/s390/block/dasd_eer.c2
-rw-r--r--drivers/s390/block/dasd_erp.c4
-rw-r--r--drivers/s390/block/dasd_fba.c2
-rw-r--r--drivers/s390/block/scm_blk.h41
-rw-r--r--drivers/s390/char/Kconfig8
-rw-r--r--drivers/s390/char/con3215.c12
-rw-r--r--drivers/s390/char/fs3270.c29
-rw-r--r--drivers/s390/char/keyboard.h16
-rw-r--r--drivers/s390/char/raw3270.c611
-rw-r--r--drivers/s390/char/raw3270.h12
-rw-r--r--drivers/s390/char/sclp.c4
-rw-r--r--drivers/s390/char/sclp_cmd.c10
-rw-r--r--drivers/s390/char/sclp_tty.c14
-rw-r--r--drivers/s390/char/sclp_vt220.c12
-rw-r--r--drivers/s390/char/tty3270.c191
-rw-r--r--drivers/s390/char/zcore.c64
-rw-r--r--drivers/s390/cio/chsc.c68
-rw-r--r--drivers/s390/cio/chsc.h2
-rw-r--r--drivers/s390/cio/cio.c4
-rw-r--r--drivers/s390/cio/cmf.c6
-rw-r--r--drivers/s390/cio/css.c2
-rw-r--r--drivers/s390/cio/device.c10
-rw-r--r--drivers/s390/cio/device_fsm.c2
-rw-r--r--drivers/s390/cio/device_pgid.c123
-rw-r--r--drivers/s390/cio/io_sch.h5
-rw-r--r--drivers/s390/cio/qdio_main.c12
-rw-r--r--drivers/s390/kvm/Makefile2
-rw-r--r--drivers/s390/kvm/kvm_virtio.c38
-rw-r--r--drivers/s390/kvm/virtio_ccw.c926
-rw-r--r--drivers/s390/net/Kconfig4
-rw-r--r--drivers/s390/net/qeth_core.h10
-rw-r--r--drivers/s390/net/qeth_core_main.c256
-rw-r--r--drivers/s390/net/qeth_core_mpc.c1
-rw-r--r--drivers/s390/net/qeth_core_mpc.h5
-rw-r--r--drivers/s390/net/qeth_core_sys.c3
-rw-r--r--drivers/s390/net/qeth_l2_main.c16
-rw-r--r--drivers/s390/net/qeth_l3_main.c35
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c2
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c2
44 files changed, 1941 insertions, 700 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 29225e1c159..f1b7fdc58a5 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1352,7 +1352,7 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
switch (rc) {
case 0: /* termination successful */
cqr->status = DASD_CQR_CLEAR_PENDING;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->starttime = 0;
DBF_DEV_EVENT(DBF_DEBUG, device,
"terminate cqr %p successful",
@@ -1420,7 +1420,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
cqr->status = DASD_CQR_ERROR;
return -EIO;
}
- cqr->startclk = get_clock();
+ cqr->startclk = get_tod_clock();
cqr->starttime = jiffies;
cqr->retries--;
if (!test_bit(DASD_CQR_VERIFY_PATH, &cqr->flags)) {
@@ -1623,7 +1623,7 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
return;
}
- now = get_clock();
+ now = get_tod_clock();
cqr = (struct dasd_ccw_req *) intparm;
/* check for conditions that should be handled immediately */
if (!cqr ||
@@ -1963,7 +1963,7 @@ int dasd_flush_device_queue(struct dasd_device *device)
}
break;
case DASD_CQR_QUEUED:
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->status = DASD_CQR_CLEARED;
break;
default: /* no need to modify the others */
@@ -2210,7 +2210,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
wait_event(generic_waitq, _wait_for_wakeup(cqr));
}
- maincqr->endclk = get_clock();
+ maincqr->endclk = get_tod_clock();
if ((maincqr->status != DASD_CQR_DONE) &&
(maincqr->intrc != -ERESTARTSYS))
dasd_log_sense(maincqr, &maincqr->irb);
@@ -2340,7 +2340,7 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
"Cancelling request %p failed with rc=%d\n",
cqr, rc);
} else {
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
break;
default: /* already finished or clear pending - do nothing */
@@ -2568,7 +2568,7 @@ restart:
}
/* Rechain finished requests to final queue */
- cqr->endclk = get_clock();
+ cqr->endclk = get_tod_clock();
list_move_tail(&cqr->blocklist, final_queue);
}
}
@@ -2711,7 +2711,7 @@ restart_cb:
}
/* call the callback function */
spin_lock_irq(&block->request_queue_lock);
- cqr->endclk = get_clock();
+ cqr->endclk = get_tod_clock();
list_del_init(&cqr->blocklist);
__dasd_cleanup_cqr(cqr);
spin_unlock_irq(&block->request_queue_lock);
@@ -3042,12 +3042,15 @@ void dasd_generic_remove(struct ccw_device *cdev)
cdev->handler = NULL;
device = dasd_device_from_cdev(cdev);
- if (IS_ERR(device))
+ if (IS_ERR(device)) {
+ dasd_remove_sysfs_files(cdev);
return;
+ }
if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags) &&
!test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {
/* Already doing offline processing */
dasd_put_device(device);
+ dasd_remove_sysfs_files(cdev);
return;
}
/*
@@ -3504,7 +3507,7 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
cqr->memdev = device;
cqr->expires = 10*HZ;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index f8212d54013..d2613471368 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -229,7 +229,7 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier)
dctl_cqr->expires = 5 * 60 * HZ;
dctl_cqr->retries = 2;
- dctl_cqr->buildclk = get_clock();
+ dctl_cqr->buildclk = get_tod_clock();
dctl_cqr->status = DASD_CQR_FILLED;
@@ -1719,7 +1719,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
erp->magic = default_erp->magic;
erp->expires = default_erp->expires;
erp->retries = 256;
- erp->buildclk = get_clock();
+ erp->buildclk = get_tod_clock();
erp->status = DASD_CQR_FILLED;
/* remove the default erp */
@@ -2322,7 +2322,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
DBF_DEV_EVENT(DBF_ERR, device, "%s",
"Unable to allocate ERP request");
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock ();
+ cqr->stopclk = get_tod_clock();
} else {
DBF_DEV_EVENT(DBF_ERR, device,
"Unable to allocate ERP request "
@@ -2364,7 +2364,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
erp->magic = cqr->magic;
erp->expires = cqr->expires;
erp->retries = 256;
- erp->buildclk = get_clock();
+ erp->buildclk = get_tod_clock();
erp->status = DASD_CQR_FILLED;
return erp;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 6b556995bb3..a2597e683e7 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -448,7 +448,7 @@ static int read_unit_address_configuration(struct dasd_device *device,
ccw->count = sizeof(*(lcu->uac));
ccw->cda = (__u32)(addr_t) lcu->uac;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
/* need to unset flag here to detect race with summary unit check */
@@ -733,7 +733,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
cqr->memdev = device;
cqr->block = NULL;
cqr->expires = 5 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 704488d0f81..cc060335852 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -184,14 +184,14 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
private->iob.bio_list = dreq->bio;
private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
- cqr->startclk = get_clock();
+ cqr->startclk = get_tod_clock();
cqr->starttime = jiffies;
cqr->retries--;
rc = dia250(&private->iob, RW_BIO);
switch (rc) {
case 0: /* Synchronous I/O finished successfully */
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->status = DASD_CQR_SUCCESS;
/* Indicate to calling function that only a dasd_schedule_bh()
and no timer is needed */
@@ -222,7 +222,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
mdsk_term_io(device);
mdsk_init_io(device, device->block->bp_block, 0, NULL);
cqr->status = DASD_CQR_CLEAR_PENDING;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
dasd_schedule_device_bh(device);
return 0;
}
@@ -276,7 +276,7 @@ static void dasd_ext_handler(struct ext_code ext_code,
return;
}
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
expires = 0;
if ((ext_code.subcode & 0xff) == 0) {
@@ -556,7 +556,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
}
}
cqr->retries = DIAG_MAX_RETRIES;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
if (blk_noretry_request(req) ||
block->base->features & DASD_FEATURE_FAILFAST)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index e37bc1620d1..33f26bfa62f 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -862,7 +862,7 @@ static void dasd_eckd_fill_rcd_cqr(struct dasd_device *device,
cqr->expires = 10*HZ;
cqr->lpm = lpm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
set_bit(DASD_CQR_VERIFY_PATH, &cqr->flags);
}
@@ -1449,7 +1449,7 @@ static int dasd_eckd_read_features(struct dasd_device *device)
ccw->count = sizeof(struct dasd_rssd_features);
ccw->cda = (__u32)(addr_t) features;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on(cqr);
if (rc == 0) {
@@ -1501,7 +1501,7 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
cqr->block = NULL;
cqr->retries = 256;
cqr->expires = 10*HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -1841,7 +1841,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
cqr->startdev = device;
cqr->memdev = device;
cqr->retries = 255;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2241,7 +2241,7 @@ dasd_eckd_format_device(struct dasd_device * device,
fcp->startdev = device;
fcp->memdev = device;
fcp->retries = 256;
- fcp->buildclk = get_clock();
+ fcp->buildclk = get_tod_clock();
fcp->status = DASD_CQR_FILLED;
return fcp;
}
@@ -2530,7 +2530,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2705,7 +2705,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2998,7 +2998,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
out_error:
@@ -3201,7 +3201,7 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
cqr->expires = startdev->default_expires * HZ;
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
@@ -3402,7 +3402,7 @@ dasd_eckd_release(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3457,7 +3457,7 @@ dasd_eckd_reserve(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3511,7 +3511,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3572,7 +3572,7 @@ static int dasd_eckd_snid(struct dasd_device *device,
set_bit(DASD_CQR_ALLOW_SLOCK, &cqr->flags);
cqr->retries = 5;
cqr->expires = 10 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
cqr->lpm = usrparm.path_mask;
@@ -3642,7 +3642,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp)
ccw->count = sizeof(struct dasd_rssd_perf_stats_t);
ccw->cda = (__u32)(addr_t) stats;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on(cqr);
if (rc == 0) {
@@ -3768,7 +3768,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
cqr->memdev = device;
cqr->retries = 3;
cqr->expires = 10 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
/* Build the ccws */
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index ff901b5509c..21ef63cf096 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -481,7 +481,7 @@ int dasd_eer_enable(struct dasd_device *device)
ccw->flags = 0;
ccw->cda = (__u32)(addr_t) cqr->data;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
cqr->callback = dasd_eer_snss_cb;
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index d01ef82f875..3250cb471f7 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -102,7 +102,7 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr)
pr_err("%s: default ERP has run out of retries and failed\n",
dev_name(&device->cdev->dev));
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
return cqr;
} /* end dasd_default_erp_action */
@@ -146,7 +146,7 @@ struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr)
cqr->status = DASD_CQR_DONE;
else {
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
return cqr;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 41469858434..4dd0e2f6047 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -370,7 +370,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
cqr->block = block;
cqr->expires = memdev->default_expires * HZ; /* default 5 minutes */
cqr->retries = 32;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
index 7ac6bad919e..3c1ccf49464 100644
--- a/drivers/s390/block/scm_blk.h
+++ b/drivers/s390/block/scm_blk.h
@@ -68,19 +68,34 @@ void scm_initiate_cluster_request(struct scm_request *);
void scm_cluster_request_irq(struct scm_request *);
bool scm_test_cluster_request(struct scm_request *);
bool scm_cluster_size_valid(void);
-#else
-#define __scm_free_rq_cluster(scmrq) {}
-#define __scm_alloc_rq_cluster(scmrq) 0
-#define scm_request_cluster_init(scmrq) {}
-#define scm_reserve_cluster(scmrq) true
-#define scm_release_cluster(scmrq) {}
-#define scm_blk_dev_cluster_setup(bdev) {}
-#define scm_need_cluster_request(scmrq) false
-#define scm_initiate_cluster_request(scmrq) {}
-#define scm_cluster_request_irq(scmrq) {}
-#define scm_test_cluster_request(scmrq) false
-#define scm_cluster_size_valid() true
-#endif
+#else /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
+static inline void __scm_free_rq_cluster(struct scm_request *scmrq) {}
+static inline int __scm_alloc_rq_cluster(struct scm_request *scmrq)
+{
+ return 0;
+}
+static inline void scm_request_cluster_init(struct scm_request *scmrq) {}
+static inline bool scm_reserve_cluster(struct scm_request *scmrq)
+{
+ return true;
+}
+static inline void scm_release_cluster(struct scm_request *scmrq) {}
+static inline void scm_blk_dev_cluster_setup(struct scm_blk_dev *bdev) {}
+static inline bool scm_need_cluster_request(struct scm_request *scmrq)
+{
+ return false;
+}
+static inline void scm_initiate_cluster_request(struct scm_request *scmrq) {}
+static inline void scm_cluster_request_irq(struct scm_request *scmrq) {}
+static inline bool scm_test_cluster_request(struct scm_request *scmrq)
+{
+ return false;
+}
+static inline bool scm_cluster_size_valid(void)
+{
+ return true;
+}
+#endif /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
extern debug_info_t *scm_debug;
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index 2c9a776bd63..71bf959732f 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -11,7 +11,7 @@ config TN3270
config TN3270_TTY
def_tristate y
prompt "Support for tty input/output on 3270 terminals"
- depends on TN3270
+ depends on TN3270 && TTY
help
Include support for using an IBM 3270 terminal as a Linux tty.
@@ -33,7 +33,7 @@ config TN3270_CONSOLE
config TN3215
def_bool y
prompt "Support for 3215 line mode terminal"
- depends on CCW
+ depends on CCW && TTY
help
Include support for IBM 3215 line-mode terminals.
@@ -51,7 +51,7 @@ config CCW_CONSOLE
config SCLP_TTY
def_bool y
prompt "Support for SCLP line mode terminal"
- depends on S390
+ depends on S390 && TTY
help
Include support for IBM SCLP line-mode terminals.
@@ -66,7 +66,7 @@ config SCLP_CONSOLE
config SCLP_VT220_TTY
def_bool y
prompt "Support for SCLP VT220-compatible terminal"
- depends on S390
+ depends on S390 && TTY
help
Include support for an IBM SCLP VT220-compatible terminal.
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 33b7141a182..7b00fa634d4 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -412,8 +412,9 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
break;
case CTRLCHAR_CTRL:
- tty_insert_flip_char(tty, cchar, TTY_NORMAL);
- tty_flip_buffer_push(tty);
+ tty_insert_flip_char(&raw->port, cchar,
+ TTY_NORMAL);
+ tty_flip_buffer_push(&raw->port);
break;
case CTRLCHAR_NONE:
@@ -425,8 +426,9 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
count++;
} else
count -= 2;
- tty_insert_flip_string(tty, raw->inbuf, count);
- tty_flip_buffer_push(tty);
+ tty_insert_flip_string(&raw->port, raw->inbuf,
+ count);
+ tty_flip_buffer_push(&raw->port);
break;
}
} else if (req->type == RAW3215_WRITE) {
@@ -970,7 +972,7 @@ static int tty3215_open(struct tty_struct *tty, struct file * filp)
tty_port_tty_set(&raw->port, tty);
- tty->low_latency = 0; /* don't use bottom half for pushing chars */
+ raw->port.low_latency = 0; /* don't use bottom half for pushing chars */
/*
* Start up 3215 device
*/
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 911704571b9..230697aac94 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -443,7 +443,7 @@ fs3270_open(struct inode *inode, struct file *filp)
tty_kref_put(tty);
return -ENODEV;
}
- minor = tty->index + RAW3270_FIRSTMINOR;
+ minor = tty->index;
tty_kref_put(tty);
}
mutex_lock(&fs3270_mutex);
@@ -524,6 +524,25 @@ static const struct file_operations fs3270_fops = {
.llseek = no_llseek,
};
+void fs3270_create_cb(int minor)
+{
+ __register_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub", &fs3270_fops);
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, minor),
+ NULL, "3270/tub%d", minor);
+}
+
+void fs3270_destroy_cb(int minor)
+{
+ device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, minor));
+ __unregister_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub");
+}
+
+struct raw3270_notifier fs3270_notifier =
+{
+ .create = fs3270_create_cb,
+ .destroy = fs3270_destroy_cb,
+};
+
/*
* 3270 fullscreen driver initialization.
*/
@@ -532,16 +551,20 @@ fs3270_init(void)
{
int rc;
- rc = register_chrdev(IBM_FS3270_MAJOR, "fs3270", &fs3270_fops);
+ rc = __register_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270", &fs3270_fops);
if (rc)
return rc;
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, 0),
+ NULL, "3270/tub");
+ raw3270_register_notifier(&fs3270_notifier);
return 0;
}
static void __exit
fs3270_exit(void)
{
- unregister_chrdev(IBM_FS3270_MAJOR, "fs3270");
+ raw3270_unregister_notifier(&fs3270_notifier);
+ __unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
}
MODULE_LICENSE("GPL");
diff --git a/drivers/s390/char/keyboard.h b/drivers/s390/char/keyboard.h
index d0ae2be5819..a31f339211d 100644
--- a/drivers/s390/char/keyboard.h
+++ b/drivers/s390/char/keyboard.h
@@ -43,22 +43,14 @@ int kbd_ioctl(struct kbd_data *, unsigned int, unsigned long);
static inline void
kbd_put_queue(struct tty_port *port, int ch)
{
- struct tty_struct *tty = tty_port_tty_get(port);
- if (!tty)
- return;
- tty_insert_flip_char(tty, ch, 0);
- tty_schedule_flip(tty);
- tty_kref_put(tty);
+ tty_insert_flip_char(port, ch, 0);
+ tty_schedule_flip(port);
}
static inline void
kbd_puts_queue(struct tty_port *port, char *cp)
{
- struct tty_struct *tty = tty_port_tty_get(port);
- if (!tty)
- return;
while (*cp)
- tty_insert_flip_char(tty, *cp++, 0);
- tty_schedule_flip(tty);
- tty_kref_put(tty);
+ tty_insert_flip_char(port, *cp++, 0);
+ tty_schedule_flip(port);
}
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 9a6c140c5f0..4c9030a5b9f 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -28,7 +28,7 @@
#include <linux/device.h>
#include <linux/mutex.h>
-static struct class *class3270;
+struct class *class3270;
/* The main 3270 data structure. */
struct raw3270 {
@@ -37,6 +37,7 @@ struct raw3270 {
int minor;
short model, rows, cols;
+ unsigned int state;
unsigned long flags;
struct list_head req_queue; /* Request queue. */
@@ -46,20 +47,26 @@ struct raw3270 {
struct timer_list timer; /* Device timer. */
unsigned char *ascebc; /* ascii -> ebcdic table */
- struct device *clttydev; /* 3270-class tty device ptr */
- struct device *cltubdev; /* 3270-class tub device ptr */
- struct raw3270_request init_request;
+ struct raw3270_view init_view;
+ struct raw3270_request init_reset;
+ struct raw3270_request init_readpart;
+ struct raw3270_request init_readmod;
unsigned char init_data[256];
};
+/* raw3270->state */
+#define RAW3270_STATE_INIT 0 /* Initial state */
+#define RAW3270_STATE_RESET 1 /* Reset command is pending */
+#define RAW3270_STATE_W4ATTN 2 /* Wait for attention interrupt */
+#define RAW3270_STATE_READMOD 3 /* Read partition is pending */
+#define RAW3270_STATE_READY 4 /* Device is usable by views */
+
/* raw3270->flags */
#define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
#define RAW3270_FLAGS_BUSY 1 /* Device busy, leave it alone */
-#define RAW3270_FLAGS_ATTN 2 /* Device sent an ATTN interrupt */
-#define RAW3270_FLAGS_READY 4 /* Device is useable by views */
-#define RAW3270_FLAGS_CONSOLE 8 /* Device is the console. */
-#define RAW3270_FLAGS_FROZEN 16 /* set if 3270 is frozen for suspend */
+#define RAW3270_FLAGS_CONSOLE 2 /* Device is the console. */
+#define RAW3270_FLAGS_FROZEN 3 /* set if 3270 is frozen for suspend */
/* Semaphore to protect global data of raw3270 (devices, views, etc). */
static DEFINE_MUTEX(raw3270_mutex);
@@ -97,6 +104,17 @@ static unsigned char raw3270_ebcgraf[64] = {
0xf8, 0xf9, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
};
+static inline int raw3270_state_ready(struct raw3270 *rp)
+{
+ return rp->state == RAW3270_STATE_READY;
+}
+
+static inline int raw3270_state_final(struct raw3270 *rp)
+{
+ return rp->state == RAW3270_STATE_INIT ||
+ rp->state == RAW3270_STATE_READY;
+}
+
void
raw3270_buffer_address(struct raw3270 *rp, char *cp, unsigned short addr)
{
@@ -214,7 +232,7 @@ raw3270_request_set_idal(struct raw3270_request *rq, struct idal_buffer *ib)
* Stop running ccw.
*/
static int
-raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
+__raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
{
int retries;
int rc;
@@ -233,18 +251,6 @@ raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
return rc;
}
-static int
-raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- rc = raw3270_halt_io_nolock(rp, rq);
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- return rc;
-}
-
/*
* Add the request to the request queue, try to start it if the
* 3270 device is idle. Return without waiting for end of i/o.
@@ -281,8 +287,8 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = __raw3270_start(rp, view, rq);
spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
@@ -299,8 +305,8 @@ raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = __raw3270_start(rp, view, rq);
return rc;
@@ -378,7 +384,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
case RAW3270_IO_STOP:
if (!rq)
break;
- raw3270_halt_io_nolock(rp, rq);
+ __raw3270_halt_io(rp, rq);
rq->rc = -EIO;
break;
default:
@@ -413,9 +419,14 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
}
/*
- * Size sensing.
+ * To determine the size of the 3270 device we need to do:
+ * 1) send a 'read partition' data stream to the device
+ * 2) wait for the attn interrupt that precedes the query reply
+ * 3) do a read modified to get the query reply
+ * To make things worse we have to cope with intervention
+ * required (3270 device switched to 'stand-by') and command
+ * rejects (old devices that can't do 'read partition').
*/
-
struct raw3270_ua { /* Query Reply structure for Usable Area */
struct { /* Usable Area Query Reply Base */
short l; /* Length of this structured field */
@@ -451,117 +462,21 @@ struct raw3270_ua { /* Query Reply structure for Usable Area */
} __attribute__ ((packed)) aua;
} __attribute__ ((packed));
-static struct diag210 raw3270_init_diag210;
-static DEFINE_MUTEX(raw3270_init_mutex);
-
-static int
-raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
- struct irb *irb)
-{
- /*
- * Unit-Check Processing:
- * Expect Command Reject or Intervention Required.
- */
- if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
- /* Request finished abnormally. */
- if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
- set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
- return RAW3270_IO_BUSY;
- }
- }
- if (rq) {
- if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
- if (irb->ecw[0] & SNS0_CMD_REJECT)
- rq->rc = -EOPNOTSUPP;
- else
- rq->rc = -EIO;
- } else
- /* Request finished normally. Copy residual count. */
- rq->rescnt = irb->scsw.cmd.count;
- }
- if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
- set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags);
- wake_up(&raw3270_wait_queue);
- }
- return RAW3270_IO_DONE;
-}
-
-static struct raw3270_fn raw3270_init_fn = {
- .intv = raw3270_init_irq
-};
-
-static struct raw3270_view raw3270_init_view = {
- .fn = &raw3270_init_fn
-};
-
-/*
- * raw3270_wait/raw3270_wait_interruptible/__raw3270_wakeup
- * Wait for end of request. The request must have been started
- * with raw3270_start, rc = 0. The device lock may NOT have been
- * released between calling raw3270_start and raw3270_wait.
- */
static void
-raw3270_wake_init(struct raw3270_request *rq, void *data)
-{
- wake_up((wait_queue_head_t *) data);
-}
-
-/*
- * Special wait function that can cope with console initialization.
- */
-static int
-raw3270_start_init(struct raw3270 *rp, struct raw3270_view *view,
- struct raw3270_request *rq)
-{
- unsigned long flags;
- int rc;
-
-#ifdef CONFIG_TN3270_CONSOLE
- if (raw3270_registered == 0) {
- spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
- rq->callback = NULL;
- rc = __raw3270_start(rp, view, rq);
- if (rc == 0)
- while (!raw3270_request_final(rq)) {
- wait_cons_dev();
- barrier();
- }
- spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
- return rq->rc;
- }
-#endif
- rq->callback = raw3270_wake_init;
- rq->callback_data = &raw3270_wait_queue;
- spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
- rc = __raw3270_start(rp, view, rq);
- spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
- if (rc)
- return rc;
- /* Now wait for the completion. */
- rc = wait_event_interruptible(raw3270_wait_queue,
- raw3270_request_final(rq));
- if (rc == -ERESTARTSYS) { /* Interrupted by a signal. */
- raw3270_halt_io(view->dev, rq);
- /* No wait for the halt to complete. */
- wait_event(raw3270_wait_queue, raw3270_request_final(rq));
- return -ERESTARTSYS;
- }
- return rq->rc;
-}
-
-static int
-__raw3270_size_device_vm(struct raw3270 *rp)
+raw3270_size_device_vm(struct raw3270 *rp)
{
int rc, model;
struct ccw_dev_id dev_id;
+ struct diag210 diag_data;
ccw_device_get_id(rp->cdev, &dev_id);
- raw3270_init_diag210.vrdcdvno = dev_id.devno;
- raw3270_init_diag210.vrdclen = sizeof(struct diag210);
- rc = diag210(&raw3270_init_diag210);
- if (rc)
- return rc;
- model = raw3270_init_diag210.vrdccrmd;
+ diag_data.vrdcdvno = dev_id.devno;
+ diag_data.vrdclen = sizeof(struct diag210);
+ rc = diag210(&diag_data);
+ model = diag_data.vrdccrmd;
+ /* Use default model 2 if the size could not be detected */
+ if (rc || model < 2 || model > 5)
+ model = 2;
switch (model) {
case 2:
rp->model = model;
@@ -583,77 +498,25 @@ __raw3270_size_device_vm(struct raw3270 *rp)
rp->rows = 27;
rp->cols = 132;
break;
- default:
- rc = -EOPNOTSUPP;
- break;
}
- return rc;
}
-static int
-__raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device(struct raw3270 *rp)
{
- static const unsigned char wbuf[] =
- { 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
struct raw3270_ua *uap;
- int rc;
- /*
- * To determine the size of the 3270 device we need to do:
- * 1) send a 'read partition' data stream to the device
- * 2) wait for the attn interrupt that precedes the query reply
- * 3) do a read modified to get the query reply
- * To make things worse we have to cope with intervention
- * required (3270 device switched to 'stand-by') and command
- * rejects (old devices that can't do 'read partition').
- */
- memset(&rp->init_request, 0, sizeof(rp->init_request));
- memset(&rp->init_data, 0, 256);
- /* Store 'read partition' data stream to init_data */
- memcpy(&rp->init_data, wbuf, sizeof(wbuf));
- INIT_LIST_HEAD(&rp->init_request.list);
- rp->init_request.ccw.cmd_code = TC_WRITESF;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = sizeof(wbuf);
- rp->init_request.ccw.cda = (__u32) __pa(&rp->init_data);
-
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- if (rc)
- /* Check error cases: -ERESTARTSYS, -EIO and -EOPNOTSUPP */
- return rc;
-
- /* Wait for attention interrupt. */
-#ifdef CONFIG_TN3270_CONSOLE
- if (raw3270_registered == 0) {
- unsigned long flags;
-
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- while (!test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags))
- wait_cons_dev();
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- } else
-#endif
- rc = wait_event_interruptible(raw3270_wait_queue,
- test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags));
- if (rc)
- return rc;
-
- /*
- * The device accepted the 'read partition' command. Now
- * set up a read ccw and issue it.
- */
- rp->init_request.ccw.cmd_code = TC_READMOD;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = sizeof(rp->init_data);
- rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- if (rc)
- return rc;
/* Got a Query Reply */
uap = (struct raw3270_ua *) (rp->init_data + 1);
/* Paranoia check. */
- if (rp->init_data[0] != 0x88 || uap->uab.qcode != 0x81)
- return -EOPNOTSUPP;
+ if (rp->init_readmod.rc || rp->init_data[0] != 0x88 ||
+ uap->uab.qcode != 0x81) {
+ /* Couldn't detect size. Use default model 2. */
+ rp->model = 2;
+ rp->rows = 24;
+ rp->cols = 80;
+ return;
+ }
/* Copy rows/columns of default Usable Area */
rp->rows = uap->uab.h;
rp->cols = uap->uab.w;
@@ -666,66 +529,131 @@ __raw3270_size_device(struct raw3270 *rp)
rp->rows = uap->aua.hauai;
rp->cols = uap->aua.wauai;
}
- return 0;
+ /* Try to find a model. */
+ rp->model = 0;
+ if (rp->rows == 24 && rp->cols == 80)
+ rp->model = 2;
+ if (rp->rows == 32 && rp->cols == 80)
+ rp->model = 3;
+ if (rp->rows == 43 && rp->cols == 80)
+ rp->model = 4;
+ if (rp->rows == 27 && rp->cols == 132)
+ rp->model = 5;
}
-static int
-raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device_done(struct raw3270 *rp)
{
- int rc;
+ struct raw3270_view *view;
- mutex_lock(&raw3270_init_mutex);
- rp->view = &raw3270_init_view;
- raw3270_init_view.dev = rp;
- if (MACHINE_IS_VM)
- rc = __raw3270_size_device_vm(rp);
- else
- rc = __raw3270_size_device(rp);
- raw3270_init_view.dev = NULL;
rp->view = NULL;
- mutex_unlock(&raw3270_init_mutex);
- if (rc == 0) { /* Found something. */
- /* Try to find a model. */
- rp->model = 0;
- if (rp->rows == 24 && rp->cols == 80)
- rp->model = 2;
- if (rp->rows == 32 && rp->cols == 80)
- rp->model = 3;
- if (rp->rows == 43 && rp->cols == 80)
- rp->model = 4;
- if (rp->rows == 27 && rp->cols == 132)
- rp->model = 5;
- } else {
- /* Couldn't detect size. Use default model 2. */
- rp->model = 2;
- rp->rows = 24;
- rp->cols = 80;
- return 0;
+ rp->state = RAW3270_STATE_READY;
+ /* Notify views about new size */
+ list_for_each_entry(view, &rp->view_list, list)
+ if (view->fn->resize)
+ view->fn->resize(view, rp->model, rp->rows, rp->cols);
+ /* Setup processing done, now activate a view */
+ list_for_each_entry(view, &rp->view_list, list) {
+ rp->view = view;
+ if (view->fn->activate(view) == 0)
+ break;
+ rp->view = NULL;
}
- return rc;
+}
+
+static void
+raw3270_read_modified_cb(struct raw3270_request *rq, void *data)
+{
+ struct raw3270 *rp = rq->view->dev;
+
+ raw3270_size_device(rp);
+ raw3270_size_device_done(rp);
+}
+
+static void
+raw3270_read_modified(struct raw3270 *rp)
+{
+ if (rp->state != RAW3270_STATE_W4ATTN)
+ return;
+ /* Use 'read modified' to get the result of a read partition. */
+ memset(&rp->init_readmod, 0, sizeof(rp->init_readmod));
+ memset(&rp->init_data, 0, sizeof(rp->init_data));
+ rp->init_readmod.ccw.cmd_code = TC_READMOD;
+ rp->init_readmod.ccw.flags = CCW_FLAG_SLI;
+ rp->init_readmod.ccw.count = sizeof(rp->init_data);
+ rp->init_readmod.ccw.cda = (__u32) __pa(rp->init_data);
+ rp->init_readmod.callback = raw3270_read_modified_cb;
+ rp->state = RAW3270_STATE_READMOD;
+ raw3270_start_irq(&rp->init_view, &rp->init_readmod);
+}
+
+static void
+raw3270_writesf_readpart(struct raw3270 *rp)
+{
+ static const unsigned char wbuf[] =
+ { 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
+
+ /* Store 'read partition' data stream to init_data */
+ memset(&rp->init_readpart, 0, sizeof(rp->init_readpart));
+ memset(&rp->init_data, 0, sizeof(rp->init_data));
+ memcpy(&rp->init_data, wbuf, sizeof(wbuf));
+ rp->init_readpart.ccw.cmd_code = TC_WRITESF;
+ rp->init_readpart.ccw.flags = CCW_FLAG_SLI;
+ rp->init_readpart.ccw.count = sizeof(wbuf);
+ rp->init_readpart.ccw.cda = (__u32) __pa(&rp->init_data);
+ rp->state = RAW3270_STATE_W4ATTN;
+ raw3270_start_irq(&rp->init_view, &rp->init_readpart);
+}
+
+/*
+ * Device reset
+ */
+static void
+raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
+{
+ struct raw3270 *rp = rq->view->dev;
+
+ if (rp->state != RAW3270_STATE_RESET)
+ return;
+ if (rq && rq->rc) {
+ /* Reset command failed. */
+ rp->state = RAW3270_STATE_INIT;
+ } else if (0 && MACHINE_IS_VM) {
+ raw3270_size_device_vm(rp);
+ raw3270_size_device_done(rp);
+ } else
+ raw3270_writesf_readpart(rp);
}
static int
-raw3270_reset_device(struct raw3270 *rp)
+__raw3270_reset_device(struct raw3270 *rp)
{
int rc;
- mutex_lock(&raw3270_init_mutex);
- memset(&rp->init_request, 0, sizeof(rp->init_request));
+ /* Store reset data stream to init_data/init_reset */
+ memset(&rp->init_reset, 0, sizeof(rp->init_reset));
memset(&rp->init_data, 0, sizeof(rp->init_data));
- /* Store reset data stream to init_data/init_request */
rp->init_data[0] = TW_KR;
- INIT_LIST_HEAD(&rp->init_request.list);
- rp->init_request.ccw.cmd_code = TC_EWRITEA;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = 1;
- rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
- rp->view = &raw3270_init_view;
- raw3270_init_view.dev = rp;
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- raw3270_init_view.dev = NULL;
- rp->view = NULL;
- mutex_unlock(&raw3270_init_mutex);
+ rp->init_reset.ccw.cmd_code = TC_EWRITEA;
+ rp->init_reset.ccw.flags = CCW_FLAG_SLI;
+ rp->init_reset.ccw.count = 1;
+ rp->init_reset.ccw.cda = (__u32) __pa(rp->init_data);
+ rp->init_reset.callback = raw3270_reset_device_cb;
+ rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset);
+ if (rc == 0 && rp->state == RAW3270_STATE_INIT)
+ rp->state = RAW3270_STATE_RESET;
+ return rc;
+}
+
+static int
+raw3270_reset_device(struct raw3270 *rp)
+{
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ rc = __raw3270_reset_device(rp);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return rc;
}
@@ -739,13 +667,50 @@ raw3270_reset(struct raw3270_view *view)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = raw3270_reset_device(view->dev);
return rc;
}
+static int
+raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
+ struct irb *irb)
+{
+ struct raw3270 *rp;
+
+ /*
+ * Unit-Check Processing:
+ * Expect Command Reject or Intervention Required.
+ */
+ if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+ /* Request finished abnormally. */
+ if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
+ set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
+ return RAW3270_IO_BUSY;
+ }
+ }
+ if (rq) {
+ if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+ if (irb->ecw[0] & SNS0_CMD_REJECT)
+ rq->rc = -EOPNOTSUPP;
+ else
+ rq->rc = -EIO;
+ }
+ }
+ if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
+ /* Queue read modified after attention interrupt */
+ rp = view->dev;
+ raw3270_read_modified(rp);
+ }
+ return RAW3270_IO_DONE;
+}
+
+static struct raw3270_fn raw3270_init_fn = {
+ .intv = raw3270_init_irq
+};
+
/*
* Setup new 3270 device.
*/
@@ -774,6 +739,10 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
INIT_LIST_HEAD(&rp->req_queue);
INIT_LIST_HEAD(&rp->view_list);
+ rp->init_view.dev = rp;
+ rp->init_view.fn = &raw3270_init_fn;
+ rp->view = &rp->init_view;
+
/*
* Add device to list and find the smallest unused minor
* number for it. Note: there is no device with minor 0,
@@ -812,6 +781,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
*/
struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
{
+ unsigned long flags;
struct raw3270 *rp;
char *ascebc;
int rc;
@@ -822,16 +792,15 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
if (rc)
return ERR_PTR(rc);
set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
- rc = raw3270_reset_device(rp);
- if (rc)
- return ERR_PTR(rc);
- rc = raw3270_size_device(rp);
- if (rc)
- return ERR_PTR(rc);
- rc = raw3270_reset_device(rp);
- if (rc)
- return ERR_PTR(rc);
- set_bit(RAW3270_FLAGS_READY, &rp->flags);
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ do {
+ __raw3270_reset_device(rp);
+ while (!raw3270_state_final(rp)) {
+ wait_cons_dev();
+ barrier();
+ }
+ } while (rp->state != RAW3270_STATE_READY);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return rp;
}
@@ -893,13 +862,13 @@ raw3270_activate_view(struct raw3270_view *view)
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
if (rp->view == view)
rc = 0;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
else {
oldview = NULL;
- if (rp->view) {
+ if (rp->view && rp->view->fn->deactivate) {
oldview = rp->view;
oldview->fn->deactivate(oldview);
}
@@ -944,7 +913,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
list_del_init(&view->list);
list_add_tail(&view->list, &rp->view_list);
/* Try to activate another view. */
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ if (raw3270_state_ready(rp) &&
!test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
list_for_each_entry(view, &rp->view_list, list) {
rp->view = view;
@@ -975,18 +944,16 @@ raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor)
if (rp->minor != minor)
continue;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
- atomic_set(&view->ref_count, 2);
- view->dev = rp;
- view->fn = fn;
- view->model = rp->model;
- view->rows = rp->rows;
- view->cols = rp->cols;
- view->ascebc = rp->ascebc;
- spin_lock_init(&view->lock);
- list_add(&view->list, &rp->view_list);
- rc = 0;
- }
+ atomic_set(&view->ref_count, 2);
+ view->dev = rp;
+ view->fn = fn;
+ view->model = rp->model;
+ view->rows = rp->rows;
+ view->cols = rp->cols;
+ view->ascebc = rp->ascebc;
+ spin_lock_init(&view->lock);
+ list_add(&view->list, &rp->view_list);
+ rc = 0;
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
break;
}
@@ -1010,14 +977,11 @@ raw3270_find_view(struct raw3270_fn *fn, int minor)
if (rp->minor != minor)
continue;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
- view = ERR_PTR(-ENOENT);
- list_for_each_entry(tmp, &rp->view_list, list) {
- if (tmp->fn == fn) {
- raw3270_get_view(tmp);
- view = tmp;
- break;
- }
+ list_for_each_entry(tmp, &rp->view_list, list) {
+ if (tmp->fn == fn) {
+ raw3270_get_view(tmp);
+ view = tmp;
+ break;
}
}
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
@@ -1044,7 +1008,7 @@ raw3270_del_view(struct raw3270_view *view)
rp->view = NULL;
}
list_del_init(&view->list);
- if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ if (!rp->view && raw3270_state_ready(rp) &&
!test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
/* Try to activate another view. */
list_for_each_entry(nv, &rp->view_list, list) {
@@ -1072,10 +1036,6 @@ raw3270_delete_device(struct raw3270 *rp)
/* Remove from device chain. */
mutex_lock(&raw3270_mutex);
- if (rp->clttydev && !IS_ERR(rp->clttydev))
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
- if (rp->cltubdev && !IS_ERR(rp->cltubdev))
- device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, rp->minor));
list_del_init(&rp->list);
mutex_unlock(&raw3270_mutex);
@@ -1139,75 +1099,34 @@ static struct attribute_group raw3270_attr_group = {
static int raw3270_create_attributes(struct raw3270 *rp)
{
- int rc;
-
- rc = sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
- if (rc)
- goto out;
-
- rp->clttydev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_TTY3270_MAJOR, rp->minor), NULL,
- "tty%s", dev_name(&rp->cdev->dev));
- if (IS_ERR(rp->clttydev)) {
- rc = PTR_ERR(rp->clttydev);
- goto out_ttydev;
- }
-
- rp->cltubdev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_FS3270_MAJOR, rp->minor), NULL,
- "tub%s", dev_name(&rp->cdev->dev));
- if (!IS_ERR(rp->cltubdev))
- goto out;
-
- rc = PTR_ERR(rp->cltubdev);
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
-
-out_ttydev:
- sysfs_remove_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
-out:
- return rc;
+ return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
}
/*
* Notifier for device addition/removal
*/
-struct raw3270_notifier {
- struct list_head list;
- void (*notifier)(int, int);
-};
-
static LIST_HEAD(raw3270_notifier);
-int raw3270_register_notifier(void (*notifier)(int, int))
+int raw3270_register_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
struct raw3270 *rp;
- np = kmalloc(sizeof(struct raw3270_notifier), GFP_KERNEL);
- if (!np)
- return -ENOMEM;
- np->notifier = notifier;
mutex_lock(&raw3270_mutex);
- list_add_tail(&np->list, &raw3270_notifier);
- list_for_each_entry(rp, &raw3270_devices, list) {
- get_device(&rp->cdev->dev);
- notifier(rp->minor, 1);
- }
+ list_add_tail(&notifier->list, &raw3270_notifier);
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
}
-void raw3270_unregister_notifier(void (*notifier)(int, int))
+void raw3270_unregister_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
+ struct raw3270 *rp;
mutex_lock(&raw3270_mutex);
- list_for_each_entry(np, &raw3270_notifier, list)
- if (np->notifier == notifier) {
- list_del(&np->list);
- kfree(np);
- break;
- }
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->destroy(rp->minor);
+ list_del(&notifier->list);
mutex_unlock(&raw3270_mutex);
}
@@ -1217,29 +1136,20 @@ void raw3270_unregister_notifier(void (*notifier)(int, int))
static int
raw3270_set_online (struct ccw_device *cdev)
{
- struct raw3270 *rp;
struct raw3270_notifier *np;
+ struct raw3270 *rp;
int rc;
rp = raw3270_create_device(cdev);
if (IS_ERR(rp))
return PTR_ERR(rp);
- rc = raw3270_reset_device(rp);
- if (rc)
- goto failure;
- rc = raw3270_size_device(rp);
- if (rc)
- goto failure;
- rc = raw3270_reset_device(rp);
- if (rc)
- goto failure;
rc = raw3270_create_attributes(rp);
if (rc)
goto failure;
- set_bit(RAW3270_FLAGS_READY, &rp->flags);
+ raw3270_reset_device(rp);
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 1);
+ np->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
@@ -1268,14 +1178,14 @@ raw3270_remove (struct ccw_device *cdev)
*/
if (rp == NULL)
return;
- clear_bit(RAW3270_FLAGS_READY, &rp->flags);
sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group);
/* Deactivate current view and remove all views. */
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
if (rp->view) {
- rp->view->fn->deactivate(rp->view);
+ if (rp->view->fn->deactivate)
+ rp->view->fn->deactivate(rp->view);
rp->view = NULL;
}
while (!list_empty(&rp->view_list)) {
@@ -1290,7 +1200,7 @@ raw3270_remove (struct ccw_device *cdev)
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 0);
+ np->destroy(rp->minor);
mutex_unlock(&raw3270_mutex);
/* Reset 3270 device. */
@@ -1324,7 +1234,7 @@ static int raw3270_pm_stop(struct ccw_device *cdev)
if (!rp)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (rp->view)
+ if (rp->view && rp->view->fn->deactivate)
rp->view->fn->deactivate(rp->view);
if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
/*
@@ -1351,7 +1261,7 @@ static int raw3270_pm_start(struct ccw_device *cdev)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
- if (rp->view)
+ if (rp->view && rp->view->fn->activate)
rp->view->fn->activate(rp->view);
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return 0;
@@ -1434,6 +1344,7 @@ MODULE_LICENSE("GPL");
module_init(raw3270_init);
module_exit(raw3270_exit);
+EXPORT_SYMBOL(class3270);
EXPORT_SYMBOL(raw3270_request_alloc);
EXPORT_SYMBOL(raw3270_request_free);
EXPORT_SYMBOL(raw3270_request_reset);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index ed34eb2199c..7b73ff8c1bd 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -91,6 +91,7 @@ struct raw3270_iocb {
struct raw3270;
struct raw3270_view;
+extern struct class *class3270;
/* 3270 CCW request */
struct raw3270_request {
@@ -140,6 +141,7 @@ struct raw3270_fn {
struct raw3270_request *, struct irb *);
void (*release)(struct raw3270_view *);
void (*free)(struct raw3270_view *);
+ void (*resize)(struct raw3270_view *, int, int, int);
};
/*
@@ -192,8 +194,14 @@ struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
void raw3270_wait_cons_dev(struct raw3270 *);
/* Notifier for device addition/removal */
-int raw3270_register_notifier(void (*notifier)(int, int));
-void raw3270_unregister_notifier(void (*notifier)(int, int));
+struct raw3270_notifier {
+ struct list_head list;
+ void (*create)(int minor);
+ void (*destroy)(int minor);
+};
+
+int raw3270_register_notifier(struct raw3270_notifier *);
+void raw3270_unregister_notifier(struct raw3270_notifier *);
void raw3270_pm_unfreeze(struct raw3270_view *);
/*
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 12c16a65dd2..bd6871bf545 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -450,7 +450,7 @@ sclp_sync_wait(void)
timeout = 0;
if (timer_pending(&sclp_request_timer)) {
/* Get timeout TOD value */
- timeout = get_clock() +
+ timeout = get_tod_clock() +
sclp_tod_from_jiffies(sclp_request_timer.expires -
jiffies);
}
@@ -472,7 +472,7 @@ sclp_sync_wait(void)
while (sclp_running_state != sclp_running_state_idle) {
/* Check for expired request timer */
if (timer_pending(&sclp_request_timer) &&
- get_clock() > timeout &&
+ get_tod_clock() > timeout &&
del_timer(&sclp_request_timer))
sclp_request_timer.function(sclp_request_timer.data);
cpu_relax();
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index c44d13f607b..30a2255389e 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -56,7 +56,6 @@ static int __initdata early_read_info_sccb_valid;
u64 sclp_facilities;
static u8 sclp_fac84;
-static u8 sclp_fac85;
static unsigned long long rzm;
static unsigned long long rnmax;
@@ -131,7 +130,8 @@ void __init sclp_facilities_detect(void)
sccb = &early_read_info_sccb;
sclp_facilities = sccb->facilities;
sclp_fac84 = sccb->fac84;
- sclp_fac85 = sccb->fac85;
+ if (sccb->fac85 & 0x02)
+ S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
rzm <<= 20;
@@ -171,12 +171,6 @@ unsigned long long sclp_get_rzm(void)
return rzm;
}
-u8 sclp_get_fac85(void)
-{
- return sclp_fac85;
-}
-EXPORT_SYMBOL_GPL(sclp_get_fac85);
-
/*
* This function will be called after sclp_facilities_detect(), which gets
* called from early.c code. Therefore the sccb should have valid contents.
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 877fbc37c1e..14b4cb8abcc 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -65,7 +65,7 @@ sclp_tty_open(struct tty_struct *tty, struct file *filp)
{
tty_port_tty_set(&sclp_port, tty);
tty->driver_data = NULL;
- tty->low_latency = 0;
+ sclp_port.low_latency = 0;
return 0;
}
@@ -342,8 +342,8 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
case CTRLCHAR_SYSRQ:
break;
case CTRLCHAR_CTRL:
- tty_insert_flip_char(tty, cchar, TTY_NORMAL);
- tty_flip_buffer_push(tty);
+ tty_insert_flip_char(&sclp_port, cchar, TTY_NORMAL);
+ tty_flip_buffer_push(&sclp_port);
break;
case CTRLCHAR_NONE:
/* send (normal) input to line discipline */
@@ -351,11 +351,11 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
(strncmp((const char *) buf + count - 2, "^n", 2) &&
strncmp((const char *) buf + count - 2, "\252n", 2))) {
/* add the auto \n */
- tty_insert_flip_string(tty, buf, count);
- tty_insert_flip_char(tty, '\n', TTY_NORMAL);
+ tty_insert_flip_string(&sclp_port, buf, count);
+ tty_insert_flip_char(&sclp_port, '\n', TTY_NORMAL);
} else
- tty_insert_flip_string(tty, buf, count - 2);
- tty_flip_buffer_push(tty);
+ tty_insert_flip_string(&sclp_port, buf, count - 2);
+ tty_flip_buffer_push(&sclp_port);
break;
}
tty_kref_put(tty);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index effcc8756e0..6c92f62623b 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -461,14 +461,9 @@ sclp_vt220_write(struct tty_struct *tty, const unsigned char *buf, int count)
static void
sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
{
- struct tty_struct *tty = tty_port_tty_get(&sclp_vt220_port);
char *buffer;
unsigned int count;
- /* Ignore input if device is not open */
- if (tty == NULL)
- return;
-
buffer = (char *) ((addr_t) evbuf + sizeof(struct evbuf_header));
count = evbuf->length - sizeof(struct evbuf_header);
@@ -480,11 +475,10 @@ sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
/* Send input to line discipline */
buffer++;
count--;
- tty_insert_flip_string(tty, buffer, count);
- tty_flip_buffer_push(tty);
+ tty_insert_flip_string(&sclp_vt220_port, buffer, count);
+ tty_flip_buffer_push(&sclp_vt220_port);
break;
}
- tty_kref_put(tty);
}
/*
@@ -495,7 +489,7 @@ sclp_vt220_open(struct tty_struct *tty, struct file *filp)
{
if (tty->count == 1) {
tty_port_tty_set(&sclp_vt220_port, tty);
- tty->low_latency = 0;
+ sclp_vt220_port.low_latency = 0;
if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
tty->winsize.ws_row = 24;
tty->winsize.ws_col = 80;
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 43ea0593bdb..b907dba2402 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/console.h>
#include <linux/interrupt.h>
+#include <linux/workqueue.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
@@ -80,6 +81,8 @@ struct tty3270 {
unsigned int highlight; /* Blink/reverse/underscore */
unsigned int f_color; /* Foreground color */
struct tty3270_line *screen;
+ unsigned int n_model, n_cols, n_rows; /* New model & size */
+ struct work_struct resize_work;
/* Input stuff. */
struct string *prompt; /* Output string for input area. */
@@ -115,6 +118,7 @@ struct tty3270 {
#define TTY_UPDATE_ALL 16 /* Recreate screen. */
static void tty3270_update(struct tty3270 *);
+static void tty3270_resize_work(struct work_struct *work);
/*
* Setup timeout for a device. On timeout trigger an update.
@@ -683,12 +687,6 @@ tty3270_alloc_view(void)
INIT_LIST_HEAD(&tp->update);
INIT_LIST_HEAD(&tp->rcl_lines);
tp->rcl_max = 20;
- tty_port_init(&tp->port);
- setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
- (unsigned long) tp);
- tasklet_init(&tp->readlet,
- (void (*)(unsigned long)) tty3270_read_tasklet,
- (unsigned long) tp->read);
for (pages = 0; pages < TTY3270_STRING_PAGES; pages++) {
tp->freemem_pages[pages] = (void *)
@@ -710,6 +708,15 @@ tty3270_alloc_view(void)
tp->kbd = kbd_alloc();
if (!tp->kbd)
goto out_reset;
+
+ tty_port_init(&tp->port);
+ setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
+ (unsigned long) tp);
+ tasklet_init(&tp->readlet,
+ (void (*)(unsigned long)) tty3270_read_tasklet,
+ (unsigned long) tp->read);
+ INIT_WORK(&tp->resize_work, tty3270_resize_work);
+
return tp;
out_reset:
@@ -752,42 +759,96 @@ tty3270_free_view(struct tty3270 *tp)
/*
* Allocate tty3270 screen.
*/
-static int
-tty3270_alloc_screen(struct tty3270 *tp)
+static struct tty3270_line *
+tty3270_alloc_screen(unsigned int rows, unsigned int cols)
{
+ struct tty3270_line *screen;
unsigned long size;
int lines;
- size = sizeof(struct tty3270_line) * (tp->view.rows - 2);
- tp->screen = kzalloc(size, GFP_KERNEL);
- if (!tp->screen)
+ size = sizeof(struct tty3270_line) * (rows - 2);
+ screen = kzalloc(size, GFP_KERNEL);
+ if (!screen)
goto out_err;
- for (lines = 0; lines < tp->view.rows - 2; lines++) {
- size = sizeof(struct tty3270_cell) * tp->view.cols;
- tp->screen[lines].cells = kzalloc(size, GFP_KERNEL);
- if (!tp->screen[lines].cells)
+ for (lines = 0; lines < rows - 2; lines++) {
+ size = sizeof(struct tty3270_cell) * cols;
+ screen[lines].cells = kzalloc(size, GFP_KERNEL);
+ if (!screen[lines].cells)
goto out_screen;
}
- return 0;
+ return screen;
out_screen:
while (lines--)
- kfree(tp->screen[lines].cells);
- kfree(tp->screen);
+ kfree(screen[lines].cells);
+ kfree(screen);
out_err:
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
/*
* Free tty3270 screen.
*/
static void
-tty3270_free_screen(struct tty3270 *tp)
+tty3270_free_screen(struct tty3270_line *screen, unsigned int rows)
{
int lines;
- for (lines = 0; lines < tp->view.rows - 2; lines++)
- kfree(tp->screen[lines].cells);
- kfree(tp->screen);
+ for (lines = 0; lines < rows - 2; lines++)
+ kfree(screen[lines].cells);
+ kfree(screen);
+}
+
+/*
+ * Resize tty3270 screen
+ */
+static void tty3270_resize_work(struct work_struct *work)
+{
+ struct tty3270 *tp = container_of(work, struct tty3270, resize_work);
+ struct tty3270_line *screen, *oscreen;
+ struct tty_struct *tty;
+ unsigned int orows;
+ struct winsize ws;
+
+ screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols);
+ if (!screen)
+ return;
+ /* Switch to new output size */
+ spin_lock_bh(&tp->view.lock);
+ oscreen = tp->screen;
+ orows = tp->view.rows;
+ tp->view.model = tp->n_model;
+ tp->view.rows = tp->n_rows;
+ tp->view.cols = tp->n_cols;
+ tp->screen = screen;
+ free_string(&tp->freemem, tp->prompt);
+ free_string(&tp->freemem, tp->status);
+ tty3270_create_prompt(tp);
+ tty3270_create_status(tp);
+ tp->nr_up = 0;
+ while (tp->nr_lines < tp->view.rows - 2)
+ tty3270_blank_line(tp);
+ tp->update_flags = TTY_UPDATE_ALL;
+ spin_unlock_bh(&tp->view.lock);
+ tty3270_free_screen(oscreen, orows);
+ tty3270_set_timer(tp, 1);
+ /* Informat tty layer about new size */
+ tty = tty_port_tty_get(&tp->port);
+ if (!tty)
+ return;
+ ws.ws_row = tp->view.rows - 2;
+ ws.ws_col = tp->view.cols;
+ tty_do_resize(tty, &ws);
+}
+
+static void
+tty3270_resize(struct raw3270_view *view, int model, int rows, int cols)
+{
+ struct tty3270 *tp = container_of(view, struct tty3270, view);
+
+ tp->n_model = model;
+ tp->n_rows = rows;
+ tp->n_cols = cols;
+ schedule_work(&tp->resize_work);
}
/*
@@ -815,7 +876,8 @@ static void
tty3270_free(struct raw3270_view *view)
{
struct tty3270 *tp = container_of(view, struct tty3270, view);
- tty3270_free_screen(tp);
+
+ tty3270_free_screen(tp->screen, tp->view.rows);
tty3270_free_view(tp);
}
@@ -827,9 +889,8 @@ tty3270_del_views(void)
{
int i;
- for (i = 0; i < tty3270_max_index; i++) {
- struct raw3270_view *view =
- raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
+ for (i = RAW3270_FIRSTMINOR; i <= tty3270_max_index; i++) {
+ struct raw3270_view *view = raw3270_find_view(&tty3270_fn, i);
if (!IS_ERR(view))
raw3270_del_view(view);
}
@@ -840,7 +901,8 @@ static struct raw3270_fn tty3270_fn = {
.deactivate = tty3270_deactivate,
.intv = (void *) tty3270_irq,
.release = tty3270_release,
- .free = tty3270_free
+ .free = tty3270_free,
+ .resize = tty3270_resize
};
/*
@@ -853,47 +915,43 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
int i, rc;
/* Check if the tty3270 is already there. */
- view = raw3270_find_view(&tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ view = raw3270_find_view(&tty3270_fn, tty->index);
if (!IS_ERR(view)) {
tp = container_of(view, struct tty3270, view);
tty->driver_data = tp;
tty->winsize.ws_row = tp->view.rows - 2;
tty->winsize.ws_col = tp->view.cols;
- tty->low_latency = 0;
+ tp->port.low_latency = 0;
/* why to reassign? */
tty_port_tty_set(&tp->port, tty);
tp->inattr = TF_INPUT;
return tty_port_install(&tp->port, driver, tty);
}
- if (tty3270_max_index < tty->index + 1)
- tty3270_max_index = tty->index + 1;
-
- /* Quick exit if there is no device for tty->index. */
- if (PTR_ERR(view) == -ENODEV)
- return -ENODEV;
+ if (tty3270_max_index < tty->index)
+ tty3270_max_index = tty->index;
/* Allocate tty3270 structure on first open. */
tp = tty3270_alloc_view();
if (IS_ERR(tp))
return PTR_ERR(tp);
- rc = raw3270_add_view(&tp->view, &tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
if (rc) {
tty3270_free_view(tp);
return rc;
}
- rc = tty3270_alloc_screen(tp);
- if (rc) {
+ tp->screen = tty3270_alloc_screen(tp->view.cols, tp->view.rows);
+ if (IS_ERR(tp->screen)) {
+ rc = PTR_ERR(tp->screen);
raw3270_put_view(&tp->view);
raw3270_del_view(&tp->view);
+ tty3270_free_view(tp);
return rc;
}
tty_port_tty_set(&tp->port, tty);
- tty->low_latency = 0;
+ tp->port.low_latency = 0;
tty->winsize.ws_row = tp->view.rows - 2;
tty->winsize.ws_col = tp->view.cols;
@@ -926,6 +984,20 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
}
/*
+ * This routine is called whenever a 3270 tty is opened.
+ */
+static int
+tty3270_open(struct tty_struct *tty, struct file *filp)
+{
+ struct tty3270 *tp = tty->driver_data;
+ struct tty_port *port = &tp->port;
+
+ port->count++;
+ tty_port_tty_set(port, tty);
+ return 0;
+}
+
+/*
* This routine is called when the 3270 tty is closed. We wait
* for the remaining request to be completed. Then we clean up.
*/
@@ -1753,6 +1825,7 @@ static long tty3270_compat_ioctl(struct tty_struct *tty,
static const struct tty_operations tty3270_ops = {
.install = tty3270_install,
.cleanup = tty3270_cleanup,
+ .open = tty3270_open,
.close = tty3270_close,
.write = tty3270_write,
.put_char = tty3270_put_char,
@@ -1771,6 +1844,22 @@ static const struct tty_operations tty3270_ops = {
.set_termios = tty3270_set_termios
};
+void tty3270_create_cb(int minor)
+{
+ tty_register_device(tty3270_driver, minor, NULL);
+}
+
+void tty3270_destroy_cb(int minor)
+{
+ tty_unregister_device(tty3270_driver, minor);
+}
+
+struct raw3270_notifier tty3270_notifier =
+{
+ .create = tty3270_create_cb,
+ .destroy = tty3270_destroy_cb,
+};
+
/*
* 3270 tty registration code called from tty_init().
* Most kernel services (incl. kmalloc) are available at this poimt.
@@ -1780,23 +1869,25 @@ static int __init tty3270_init(void)
struct tty_driver *driver;
int ret;
- driver = alloc_tty_driver(RAW3270_MAXDEVS);
- if (!driver)
- return -ENOMEM;
+ driver = tty_alloc_driver(RAW3270_MAXDEVS,
+ TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV |
+ TTY_DRIVER_RESET_TERMIOS);
+ if (IS_ERR(driver))
+ return PTR_ERR(driver);
/*
* Initialize the tty_driver structure
* Entries in tty3270_driver that are NOT initialized:
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
- driver->driver_name = "ttyTUB";
- driver->name = "ttyTUB";
+ driver->driver_name = "tty3270";
+ driver->name = "3270/tty";
driver->major = IBM_TTY3270_MAJOR;
- driver->minor_start = RAW3270_FIRSTMINOR;
+ driver->minor_start = 0;
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
@@ -1804,6 +1895,7 @@ static int __init tty3270_init(void)
return ret;
}
tty3270_driver = driver;
+ raw3270_register_notifier(&tty3270_notifier);
return 0;
}
@@ -1812,6 +1904,7 @@ tty3270_exit(void)
{
struct tty_driver *driver;
+ raw3270_unregister_notifier(&tty3270_notifier);
driver = tty3270_driver;
tty3270_driver = NULL;
tty_unregister_driver(driver);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index e3b9308b0fe..1d61a01576d 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -62,6 +62,7 @@ static struct dentry *zcore_dir;
static struct dentry *zcore_file;
static struct dentry *zcore_memmap_file;
static struct dentry *zcore_reipl_file;
+static struct dentry *zcore_hsa_file;
static struct ipl_parameter_block *ipl_block;
/*
@@ -77,6 +78,8 @@ static int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode)
int offs, blk_num;
static char buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+ if (!hsa_available)
+ return -ENODATA;
if (count == 0)
return 0;
@@ -278,6 +281,15 @@ next:
}
/*
+ * Release the HSA
+ */
+static void release_hsa(void)
+{
+ diag308(DIAG308_REL_HSA, NULL);
+ hsa_available = 0;
+}
+
+/*
* Read routine for zcore character device
* First 4K are dump header
* Next 32MB are HSA Memory
@@ -363,8 +375,8 @@ static int zcore_open(struct inode *inode, struct file *filp)
static int zcore_release(struct inode *inode, struct file *filep)
{
- diag308(DIAG308_REL_HSA, NULL);
- hsa_available = 0;
+ if (hsa_available)
+ release_hsa();
return 0;
}
@@ -474,6 +486,41 @@ static const struct file_operations zcore_reipl_fops = {
.llseek = no_llseek,
};
+static ssize_t zcore_hsa_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ static char str[18];
+
+ if (hsa_available)
+ snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE);
+ else
+ snprintf(str, sizeof(str), "0\n");
+ return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
+}
+
+static ssize_t zcore_hsa_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char value;
+
+ if (*ppos != 0)
+ return -EPIPE;
+ if (copy_from_user(&value, buf, 1))
+ return -EFAULT;
+ if (value != '0')
+ return -EINVAL;
+ release_hsa();
+ return count;
+}
+
+static const struct file_operations zcore_hsa_fops = {
+ .owner = THIS_MODULE,
+ .write = zcore_hsa_write,
+ .read = zcore_hsa_read,
+ .open = nonseekable_open,
+ .llseek = no_llseek,
+};
+
#ifdef CONFIG_32BIT
static void __init set_lc_mask(struct save_area *map)
@@ -590,7 +637,7 @@ static int __init zcore_header_init(int arch, struct zcore_header *hdr)
hdr->rmem_size = memory;
hdr->mem_end = sys_info.mem_size;
hdr->num_pages = memory / PAGE_SIZE;
- hdr->tod = get_clock();
+ hdr->tod = get_tod_clock();
get_cpu_id(&hdr->cpu_id);
for (i = 0; zfcpdump_save_areas[i]; i++) {
prefix = zfcpdump_save_areas[i]->pref_reg;
@@ -658,6 +705,7 @@ static int __init zcore_init(void)
rc = check_sdias();
if (rc)
goto fail;
+ hsa_available = 1;
rc = memcpy_hsa_kernel(&arch, __LC_AR_MODE_ID, 1);
if (rc)
@@ -714,9 +762,16 @@ static int __init zcore_init(void)
rc = -ENOMEM;
goto fail_memmap_file;
}
- hsa_available = 1;
+ zcore_hsa_file = debugfs_create_file("hsa", S_IRUSR|S_IWUSR, zcore_dir,
+ NULL, &zcore_hsa_fops);
+ if (!zcore_hsa_file) {
+ rc = -ENOMEM;
+ goto fail_reipl_file;
+ }
return 0;
+fail_reipl_file:
+ debugfs_remove(zcore_reipl_file);
fail_memmap_file:
debugfs_remove(zcore_memmap_file);
fail_file:
@@ -733,6 +788,7 @@ static void __exit zcore_exit(void)
debug_unregister(zcore_dbf);
sclp_sdias_exit();
free_page((unsigned long) ipl_block);
+ debugfs_remove(zcore_hsa_file);
debugfs_remove(zcore_reipl_file);
debugfs_remove(zcore_memmap_file);
debugfs_remove(zcore_file);
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 10729bbcece..31ceef1beb8 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -435,7 +435,6 @@ static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area)
static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
{
-#ifdef CONFIG_PCI
switch (sei_area->cc) {
case 1:
zpci_event_error(sei_area->ccdf);
@@ -444,11 +443,10 @@ static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
zpci_event_availability(sei_area->ccdf);
break;
default:
- CIO_CRW_EVENT(2, "chsc: unhandled sei content code %d\n",
+ CIO_CRW_EVENT(2, "chsc: sei nt2 unhandled cc=%d\n",
sei_area->cc);
break;
}
-#endif
}
static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
@@ -471,13 +469,19 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
chsc_process_sei_scm_change(sei_area);
break;
default: /* other stuff */
- CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
+ CIO_CRW_EVENT(2, "chsc: sei nt0 unhandled cc=%d\n",
sei_area->cc);
break;
}
+
+ /* Check if we might have lost some information. */
+ if (sei_area->flags & 0x40) {
+ CIO_CRW_EVENT(2, "chsc: event overflow\n");
+ css_schedule_eval_all();
+ }
}
-static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
+static void chsc_process_event_information(struct chsc_sei *sei, u64 ntsm)
{
do {
memset(sei, 0, sizeof(*sei));
@@ -488,40 +492,37 @@ static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
if (chsc(sei))
break;
- if (sei->response.code == 0x0001) {
- CIO_CRW_EVENT(2, "chsc: sei successful\n");
-
- /* Check if we might have lost some information. */
- if (sei->u.nt0_area.flags & 0x40) {
- CIO_CRW_EVENT(2, "chsc: event overflow\n");
- css_schedule_eval_all();
- }
-
- switch (sei->nt) {
- case 0:
- chsc_process_sei_nt0(&sei->u.nt0_area);
- break;
- case 2:
- chsc_process_sei_nt2(&sei->u.nt2_area);
- break;
- default:
- CIO_CRW_EVENT(2, "chsc: unhandled nt=%d\n",
- sei->nt);
- break;
- }
- } else {
+ if (sei->response.code != 0x0001) {
CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
sei->response.code);
break;
}
- } while (sei->u.nt0_area.flags & 0x80);
- return 0;
+ CIO_CRW_EVENT(2, "chsc: sei successful (nt=%d)\n", sei->nt);
+ switch (sei->nt) {
+ case 0:
+ chsc_process_sei_nt0(&sei->u.nt0_area);
+ break;
+ case 2:
+ chsc_process_sei_nt2(&sei->u.nt2_area);
+ break;
+ default:
+ CIO_CRW_EVENT(2, "chsc: unhandled nt: %d\n", sei->nt);
+ break;
+ }
+ } while (sei->u.nt0_area.flags & 0x80);
}
+/*
+ * Handle channel subsystem related CRWs.
+ * Use store event information to find out what's going on.
+ *
+ * Note: Access to sei_page is serialized through machine check handler
+ * thread, so no need for locking.
+ */
static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
{
- struct chsc_sei *sei;
+ struct chsc_sei *sei = sei_page;
if (overflow) {
css_schedule_eval_all();
@@ -531,14 +532,9 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
"chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc,
crw0->erc, crw0->rsid);
- if (!sei_page)
- return;
- /* Access to sei_page is serialized through machine check handler
- * thread, so no need for locking. */
- sei = sei_page;
CIO_TRACE_EVENT(2, "prcss");
- __chsc_process_crw(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
+ chsc_process_event_information(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
}
void chsc_chp_online(struct chp_id chpid)
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 662dab4b93e..227e05f674b 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -157,7 +157,7 @@ int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
#ifdef CONFIG_SCM_BUS
int scm_update_information(void);
#else /* CONFIG_SCM_BUS */
-#define scm_update_information() 0
+static inline int scm_update_information(void) { return 0; }
#endif /* CONFIG_SCM_BUS */
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c8faf6230b0..986ef6a92a4 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -962,9 +962,9 @@ static void css_reset(void)
atomic_inc(&chpid_reset_count);
}
/* Wait for machine check for all channel paths. */
- timeout = get_clock() + (RCHP_TIMEOUT << 12);
+ timeout = get_tod_clock() + (RCHP_TIMEOUT << 12);
while (atomic_read(&chpid_reset_count) != 0) {
- if (get_clock() > timeout)
+ if (get_tod_clock() > timeout)
break;
cpu_relax();
}
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index c9fc61c0a86..4495e0627a4 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -33,7 +33,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
-#include <linux/timex.h> /* get_clock() */
+#include <linux/timex.h> /* get_tod_clock() */
#include <asm/ccwdev.h>
#include <asm/cio.h>
@@ -326,7 +326,7 @@ static int cmf_copy_block(struct ccw_device *cdev)
memcpy(cmb_data->last_block, hw_block, cmb_data->size);
memcpy(reference_buf, hw_block, cmb_data->size);
} while (memcmp(cmb_data->last_block, reference_buf, cmb_data->size));
- cmb_data->last_update = get_clock();
+ cmb_data->last_update = get_tod_clock();
kfree(reference_buf);
return 0;
}
@@ -428,7 +428,7 @@ static void cmf_generic_reset(struct ccw_device *cdev)
memset(cmbops->align(cmb_data->hw_block), 0, cmb_data->size);
cmb_data->last_update = 0;
}
- cdev->private->cmb_start_time = get_clock();
+ cdev->private->cmb_start_time = get_tod_clock();
spin_unlock_irq(cdev->ccwlock);
}
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index fd00afd8b85..a239237d43f 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -780,7 +780,7 @@ static int __init setup_css(int nr)
css->cssid = nr;
dev_set_name(&css->device, "css%x", nr);
css->device.release = channel_subsystem_release;
- tod_high = (u32) (get_clock() >> 32);
+ tod_high = (u32) (get_tod_clock() >> 32);
css_generate_pgid(css, tod_high);
return 0;
}
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 7cd5c6812ac..c6767f5a58b 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -632,6 +632,14 @@ initiate_logging(struct device *dev, struct device_attribute *attr,
return count;
}
+static ssize_t vpm_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct subchannel *sch = to_subchannel(dev);
+
+ return sprintf(buf, "%02x\n", sch->vpm);
+}
+
static DEVICE_ATTR(chpids, 0444, chpids_show, NULL);
static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
@@ -640,11 +648,13 @@ static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
static DEVICE_ATTR(online, 0644, online_show, online_store);
static DEVICE_ATTR(availability, 0444, available_show, NULL);
static DEVICE_ATTR(logging, 0200, NULL, initiate_logging);
+static DEVICE_ATTR(vpm, 0444, vpm_show, NULL);
static struct attribute *io_subchannel_attrs[] = {
&dev_attr_chpids.attr,
&dev_attr_pimpampom.attr,
&dev_attr_logging.attr,
+ &dev_attr_vpm.attr,
NULL,
};
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 1bb1d00095a..c7638c54325 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -47,7 +47,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
cc = stsch_err(sch->schid, &schib);
printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
- "device information:\n", get_clock());
+ "device information:\n", get_tod_clock());
printk(KERN_WARNING "cio: orb:\n");
print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
orb, sizeof(*orb), 0);
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 908d287f66c..37ada05e82a 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -23,6 +23,8 @@
#define PGID_RETRIES 256
#define PGID_TIMEOUT (10 * HZ)
+static void verify_start(struct ccw_device *cdev);
+
/*
* Process path verification data and report result.
*/
@@ -70,8 +72,8 @@ static void nop_do(struct ccw_device *cdev)
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
- /* Adjust lpm. */
- req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm);
+ req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm &
+ ~cdev->private->path_noirq_mask);
if (!req->lpm)
goto out_nopath;
nop_build_cp(cdev);
@@ -102,10 +104,20 @@ static void nop_callback(struct ccw_device *cdev, void *data, int rc)
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
- if (rc == 0)
+ switch (rc) {
+ case 0:
sch->vpm |= req->lpm;
- else if (rc != -EACCES)
+ break;
+ case -ETIME:
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
+ case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
+ break;
+ default:
goto err;
+ }
+ /* Continue on the next path. */
req->lpm >>= 1;
nop_do(cdev);
return;
@@ -132,6 +144,48 @@ static void spid_build_cp(struct ccw_device *cdev, u8 fn)
req->cp = cp;
}
+static void pgid_wipeout_callback(struct ccw_device *cdev, void *data, int rc)
+{
+ if (rc) {
+ /* We don't know the path groups' state. Abort. */
+ verify_done(cdev, rc);
+ return;
+ }
+ /*
+ * Path groups have been reset. Restart path verification but
+ * leave paths in path_noirq_mask out.
+ */
+ cdev->private->flags.pgid_unknown = 0;
+ verify_start(cdev);
+}
+
+/*
+ * Reset pathgroups and restart path verification, leave unusable paths out.
+ */
+static void pgid_wipeout_start(struct ccw_device *cdev)
+{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ struct ccw_dev_id *id = &cdev->private->dev_id;
+ struct ccw_request *req = &cdev->private->req;
+ u8 fn;
+
+ CIO_MSG_EVENT(2, "wipe: device 0.%x.%04x: pvm=%02x nim=%02x\n",
+ id->ssid, id->devno, cdev->private->pgid_valid_mask,
+ cdev->private->path_noirq_mask);
+
+ /* Initialize request data. */
+ memset(req, 0, sizeof(*req));
+ req->timeout = PGID_TIMEOUT;
+ req->maxretries = PGID_RETRIES;
+ req->lpm = sch->schib.pmcw.pam;
+ req->callback = pgid_wipeout_callback;
+ fn = SPID_FUNC_DISBAND;
+ if (cdev->private->flags.mpath)
+ fn |= SPID_FUNC_MULTI_PATH;
+ spid_build_cp(cdev, fn);
+ ccw_request_start(cdev);
+}
+
/*
* Perform establish/resign SET PGID on a single path.
*/
@@ -157,11 +211,14 @@ static void spid_do(struct ccw_device *cdev)
return;
out_nopath:
+ if (cdev->private->flags.pgid_unknown) {
+ /* At least one SPID could be partially done. */
+ pgid_wipeout_start(cdev);
+ return;
+ }
verify_done(cdev, sch->vpm ? 0 : -EACCES);
}
-static void verify_start(struct ccw_device *cdev);
-
/*
* Process SET PGID request result for a single path.
*/
@@ -174,7 +231,12 @@ static void spid_callback(struct ccw_device *cdev, void *data, int rc)
case 0:
sch->vpm |= req->lpm & sch->opm;
break;
+ case -ETIME:
+ cdev->private->flags.pgid_unknown = 1;
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
break;
case -EOPNOTSUPP:
if (cdev->private->flags.mpath) {
@@ -330,8 +392,9 @@ static void snid_done(struct ccw_device *cdev, int rc)
else {
donepm = pgid_to_donepm(cdev);
sch->vpm = donepm & sch->opm;
- cdev->private->pgid_todo_mask &= ~donepm;
cdev->private->pgid_reset_mask |= reset;
+ cdev->private->pgid_todo_mask &=
+ ~(donepm | cdev->private->path_noirq_mask);
pgid_fill(cdev, pgid);
}
out:
@@ -341,6 +404,10 @@ out:
cdev->private->pgid_todo_mask, mismatch, reserved, reset);
switch (rc) {
case 0:
+ if (cdev->private->flags.pgid_unknown) {
+ pgid_wipeout_start(cdev);
+ return;
+ }
/* Anything left to do? */
if (cdev->private->pgid_todo_mask == 0) {
verify_done(cdev, sch->vpm == 0 ? -EACCES : 0);
@@ -384,9 +451,10 @@ static void snid_do(struct ccw_device *cdev)
{
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
+ int ret;
- /* Adjust lpm if paths are not set in pam. */
- req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam);
+ req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam &
+ ~cdev->private->path_noirq_mask);
if (!req->lpm)
goto out_nopath;
snid_build_cp(cdev);
@@ -394,7 +462,13 @@ static void snid_do(struct ccw_device *cdev)
return;
out_nopath:
- snid_done(cdev, cdev->private->pgid_valid_mask ? 0 : -EACCES);
+ if (cdev->private->pgid_valid_mask)
+ ret = 0;
+ else if (cdev->private->path_noirq_mask)
+ ret = -ETIME;
+ else
+ ret = -EACCES;
+ snid_done(cdev, ret);
}
/*
@@ -404,10 +478,21 @@ static void snid_callback(struct ccw_device *cdev, void *data, int rc)
{
struct ccw_request *req = &cdev->private->req;
- if (rc == 0)
+ switch (rc) {
+ case 0:
cdev->private->pgid_valid_mask |= req->lpm;
- else if (rc != -EACCES)
+ break;
+ case -ETIME:
+ cdev->private->flags.pgid_unknown = 1;
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
+ case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
+ break;
+ default:
goto err;
+ }
+ /* Continue on the next path. */
req->lpm >>= 1;
snid_do(cdev);
return;
@@ -427,6 +512,13 @@ static void verify_start(struct ccw_device *cdev)
sch->vpm = 0;
sch->lpm = sch->schib.pmcw.pam;
+
+ /* Initialize PGID data. */
+ memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
+ cdev->private->pgid_valid_mask = 0;
+ cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
+ cdev->private->path_notoper_mask = 0;
+
/* Initialize request data. */
memset(req, 0, sizeof(*req));
req->timeout = PGID_TIMEOUT;
@@ -459,14 +551,8 @@ static void verify_start(struct ccw_device *cdev)
*/
void ccw_device_verify_start(struct ccw_device *cdev)
{
- struct subchannel *sch = to_subchannel(cdev->dev.parent);
-
CIO_TRACE_EVENT(4, "vrfy");
CIO_HEX_EVENT(4, &cdev->private->dev_id, sizeof(cdev->private->dev_id));
- /* Initialize PGID data. */
- memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
- cdev->private->pgid_valid_mask = 0;
- cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
/*
* Initialize pathgroup and multipath state with target values.
* They may change in the course of path verification.
@@ -474,6 +560,7 @@ void ccw_device_verify_start(struct ccw_device *cdev)
cdev->private->flags.pgroup = cdev->private->options.pgroup;
cdev->private->flags.mpath = cdev->private->options.mpath;
cdev->private->flags.doverify = 0;
+ cdev->private->path_noirq_mask = 0;
verify_start(cdev);
}
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 76253dfcc1b..b108f4a5c7d 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -126,6 +126,10 @@ struct ccw_device_private {
u8 pgid_valid_mask; /* mask of valid PGIDs */
u8 pgid_todo_mask; /* mask of PGIDs to be adjusted */
u8 pgid_reset_mask; /* mask of PGIDs which were reset */
+ u8 path_noirq_mask; /* mask of paths for which no irq was
+ received */
+ u8 path_notoper_mask; /* mask of paths which were found
+ not operable */
u8 path_gone_mask; /* mask of paths, that became unavailable */
u8 path_new_mask; /* mask of paths, that became available */
struct {
@@ -145,6 +149,7 @@ struct ccw_device_private {
unsigned int resuming:1; /* recognition while resume */
unsigned int pgroup:1; /* pathgroup is set up */
unsigned int mpath:1; /* multipathing is set up */
+ unsigned int pgid_unknown:1;/* unknown pgid state */
unsigned int initialized:1; /* set if initial reference held */
} __attribute__((packed)) flags;
unsigned long intparm; /* user interruption parameter */
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 1671d3461f2..abc550e5dd3 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -338,10 +338,10 @@ again:
retries++;
if (!start_time) {
- start_time = get_clock();
+ start_time = get_tod_clock();
goto again;
}
- if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
+ if ((get_tod_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
goto again;
}
if (retries) {
@@ -504,7 +504,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock();
+ q->timestamp = get_tod_clock();
/*
* Don't check 128 buffers, as otherwise qdio_inbound_q_moved
@@ -563,7 +563,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q)
if (bufnr != q->last_move) {
q->last_move = bufnr;
if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR)
- q->u.in.timestamp = get_clock();
+ q->u.in.timestamp = get_tod_clock();
return 1;
} else
return 0;
@@ -595,7 +595,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q)
* At this point we know, that inbound first_to_check
* has (probably) not moved (see qdio_inbound_processing).
*/
- if (get_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
+ if (get_tod_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x",
q->first_to_check);
return 1;
@@ -772,7 +772,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock();
+ q->timestamp = get_tod_clock();
if (need_siga_sync(q))
if (((queue_type(q) != QDIO_IQDIO_QFMT) &&
diff --git a/drivers/s390/kvm/Makefile b/drivers/s390/kvm/Makefile
index 0815690ac1e..241891a57ca 100644
--- a/drivers/s390/kvm/Makefile
+++ b/drivers/s390/kvm/Makefile
@@ -6,4 +6,4 @@
# it under the terms of the GNU General Public License (version 2 only)
# as published by the Free Software Foundation.
-obj-$(CONFIG_S390_GUEST) += kvm_virtio.o
+obj-$(CONFIG_S390_GUEST) += kvm_virtio.o virtio_ccw.o
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index 8491111aec1..03a15e01677 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -422,6 +422,26 @@ static void kvm_extint_handler(struct ext_code ext_code,
}
/*
+ * For s390-virtio, we expect a page above main storage containing
+ * the virtio configuration. Try to actually load from this area
+ * in order to figure out if the host provides this page.
+ */
+static int __init test_devices_support(unsigned long addr)
+{
+ int ret = -EIO;
+
+ asm volatile(
+ "0: lura 0,%1\n"
+ "1: xgr %0,%0\n"
+ "2:\n"
+ EX_TABLE(0b,2b)
+ EX_TABLE(1b,2b)
+ : "+d" (ret)
+ : "a" (addr)
+ : "0", "cc");
+ return ret;
+}
+/*
* Init function for virtio
* devices are in a single page above top of "normal" mem
*/
@@ -432,21 +452,23 @@ static int __init kvm_devices_init(void)
if (!MACHINE_IS_KVM)
return -ENODEV;
+ if (test_devices_support(real_memory_size) < 0)
+ return -ENODEV;
+
+ rc = vmem_add_mapping(real_memory_size, PAGE_SIZE);
+ if (rc)
+ return rc;
+
+ kvm_devices = (void *) real_memory_size;
+
kvm_root = root_device_register("kvm_s390");
if (IS_ERR(kvm_root)) {
rc = PTR_ERR(kvm_root);
printk(KERN_ERR "Could not register kvm_s390 root device");
+ vmem_remove_mapping(real_memory_size, PAGE_SIZE);
return rc;
}
- rc = vmem_add_mapping(real_memory_size, PAGE_SIZE);
- if (rc) {
- root_device_unregister(kvm_root);
- return rc;
- }
-
- kvm_devices = (void *) real_memory_size;
-
INIT_WORK(&hotplug_work, hotplug_devices);
service_subclass_irq_register();
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
new file mode 100644
index 00000000000..2029b6caa59
--- /dev/null
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -0,0 +1,926 @@
+/*
+ * ccw based virtio transport
+ *
+ * Copyright IBM Corp. 2012
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ */
+
+#include <linux/kernel_stat.h>
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/err.h>
+#include <linux/virtio.h>
+#include <linux/virtio_config.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/virtio_ring.h>
+#include <linux/pfn.h>
+#include <linux/async.h>
+#include <linux/wait.h>
+#include <linux/list.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/kvm_para.h>
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/cio.h>
+#include <asm/ccwdev.h>
+
+/*
+ * virtio related functions
+ */
+
+struct vq_config_block {
+ __u16 index;
+ __u16 num;
+} __packed;
+
+#define VIRTIO_CCW_CONFIG_SIZE 0x100
+/* same as PCI config space size, should be enough for all drivers */
+
+struct virtio_ccw_device {
+ struct virtio_device vdev;
+ __u8 *status;
+ __u8 config[VIRTIO_CCW_CONFIG_SIZE];
+ struct ccw_device *cdev;
+ __u32 curr_io;
+ int err;
+ wait_queue_head_t wait_q;
+ spinlock_t lock;
+ struct list_head virtqueues;
+ unsigned long indicators;
+ unsigned long indicators2;
+ struct vq_config_block *config_block;
+};
+
+struct vq_info_block {
+ __u64 queue;
+ __u32 align;
+ __u16 index;
+ __u16 num;
+} __packed;
+
+struct virtio_feature_desc {
+ __u32 features;
+ __u8 index;
+} __packed;
+
+struct virtio_ccw_vq_info {
+ struct virtqueue *vq;
+ int num;
+ void *queue;
+ struct vq_info_block *info_block;
+ struct list_head node;
+};
+
+#define KVM_VIRTIO_CCW_RING_ALIGN 4096
+
+#define KVM_S390_VIRTIO_CCW_NOTIFY 3
+
+#define CCW_CMD_SET_VQ 0x13
+#define CCW_CMD_VDEV_RESET 0x33
+#define CCW_CMD_SET_IND 0x43
+#define CCW_CMD_SET_CONF_IND 0x53
+#define CCW_CMD_READ_FEAT 0x12
+#define CCW_CMD_WRITE_FEAT 0x11
+#define CCW_CMD_READ_CONF 0x22
+#define CCW_CMD_WRITE_CONF 0x21
+#define CCW_CMD_WRITE_STATUS 0x31
+#define CCW_CMD_READ_VQ_CONF 0x32
+
+#define VIRTIO_CCW_DOING_SET_VQ 0x00010000
+#define VIRTIO_CCW_DOING_RESET 0x00040000
+#define VIRTIO_CCW_DOING_READ_FEAT 0x00080000
+#define VIRTIO_CCW_DOING_WRITE_FEAT 0x00100000
+#define VIRTIO_CCW_DOING_READ_CONFIG 0x00200000
+#define VIRTIO_CCW_DOING_WRITE_CONFIG 0x00400000
+#define VIRTIO_CCW_DOING_WRITE_STATUS 0x00800000
+#define VIRTIO_CCW_DOING_SET_IND 0x01000000
+#define VIRTIO_CCW_DOING_READ_VQ_CONF 0x02000000
+#define VIRTIO_CCW_DOING_SET_CONF_IND 0x04000000
+#define VIRTIO_CCW_INTPARM_MASK 0xffff0000
+
+static struct virtio_ccw_device *to_vc_device(struct virtio_device *vdev)
+{
+ return container_of(vdev, struct virtio_ccw_device, vdev);
+}
+
+static int doing_io(struct virtio_ccw_device *vcdev, __u32 flag)
+{
+ unsigned long flags;
+ __u32 ret;
+
+ spin_lock_irqsave(get_ccwdev_lock(vcdev->cdev), flags);
+ if (vcdev->err)
+ ret = 0;
+ else
+ ret = vcdev->curr_io & flag;
+ spin_unlock_irqrestore(get_ccwdev_lock(vcdev->cdev), flags);
+ return ret;
+}
+
+static int ccw_io_helper(struct virtio_ccw_device *vcdev,
+ struct ccw1 *ccw, __u32 intparm)
+{
+ int ret;
+ unsigned long flags;
+ int flag = intparm & VIRTIO_CCW_INTPARM_MASK;
+
+ do {
+ spin_lock_irqsave(get_ccwdev_lock(vcdev->cdev), flags);
+ ret = ccw_device_start(vcdev->cdev, ccw, intparm, 0, 0);
+ if (!ret)
+ vcdev->curr_io |= flag;
+ spin_unlock_irqrestore(get_ccwdev_lock(vcdev->cdev), flags);
+ cpu_relax();
+ } while (ret == -EBUSY);
+ wait_event(vcdev->wait_q, doing_io(vcdev, flag) == 0);
+ return ret ? ret : vcdev->err;
+}
+
+static inline long do_kvm_notify(struct subchannel_id schid,
+ unsigned long queue_index)
+{
+ register unsigned long __nr asm("1") = KVM_S390_VIRTIO_CCW_NOTIFY;
+ register struct subchannel_id __schid asm("2") = schid;
+ register unsigned long __index asm("3") = queue_index;
+ register long __rc asm("2");
+
+ asm volatile ("diag 2,4,0x500\n"
+ : "=d" (__rc) : "d" (__nr), "d" (__schid), "d" (__index)
+ : "memory", "cc");
+ return __rc;
+}
+
+static void virtio_ccw_kvm_notify(struct virtqueue *vq)
+{
+ struct virtio_ccw_vq_info *info = vq->priv;
+ struct virtio_ccw_device *vcdev;
+ struct subchannel_id schid;
+
+ vcdev = to_vc_device(info->vq->vdev);
+ ccw_device_get_schid(vcdev->cdev, &schid);
+ do_kvm_notify(schid, virtqueue_get_queue_index(vq));
+}
+
+static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev,
+ struct ccw1 *ccw, int index)
+{
+ vcdev->config_block->index = index;
+ ccw->cmd_code = CCW_CMD_READ_VQ_CONF;
+ ccw->flags = 0;
+ ccw->count = sizeof(struct vq_config_block);
+ ccw->cda = (__u32)(unsigned long)(vcdev->config_block);
+ ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF);
+ return vcdev->config_block->num;
+}
+
+static void virtio_ccw_del_vq(struct virtqueue *vq, struct ccw1 *ccw)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vq->vdev);
+ struct virtio_ccw_vq_info *info = vq->priv;
+ unsigned long flags;
+ unsigned long size;
+ int ret;
+ unsigned int index = virtqueue_get_queue_index(vq);
+
+ /* Remove from our list. */
+ spin_lock_irqsave(&vcdev->lock, flags);
+ list_del(&info->node);
+ spin_unlock_irqrestore(&vcdev->lock, flags);
+
+ /* Release from host. */
+ info->info_block->queue = 0;
+ info->info_block->align = 0;
+ info->info_block->index = index;
+ info->info_block->num = 0;
+ ccw->cmd_code = CCW_CMD_SET_VQ;
+ ccw->flags = 0;
+ ccw->count = sizeof(*info->info_block);
+ ccw->cda = (__u32)(unsigned long)(info->info_block);
+ ret = ccw_io_helper(vcdev, ccw,
+ VIRTIO_CCW_DOING_SET_VQ | index);
+ /*
+ * -ENODEV isn't considered an error: The device is gone anyway.
+ * This may happen on device detach.
+ */
+ if (ret && (ret != -ENODEV))
+ dev_warn(&vq->vdev->dev, "Error %d while deleting queue %d",
+ ret, index);
+
+ vring_del_virtqueue(vq);
+ size = PAGE_ALIGN(vring_size(info->num, KVM_VIRTIO_CCW_RING_ALIGN));
+ free_pages_exact(info->queue, size);
+ kfree(info->info_block);
+ kfree(info);
+}
+
+static void virtio_ccw_del_vqs(struct virtio_device *vdev)
+{
+ struct virtqueue *vq, *n;
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+
+ list_for_each_entry_safe(vq, n, &vdev->vqs, list)
+ virtio_ccw_del_vq(vq, ccw);
+
+ kfree(ccw);
+}
+
+static struct virtqueue *virtio_ccw_setup_vq(struct virtio_device *vdev,
+ int i, vq_callback_t *callback,
+ const char *name,
+ struct ccw1 *ccw)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ int err;
+ struct virtqueue *vq = NULL;
+ struct virtio_ccw_vq_info *info;
+ unsigned long size = 0; /* silence the compiler */
+ unsigned long flags;
+
+ /* Allocate queue. */
+ info = kzalloc(sizeof(struct virtio_ccw_vq_info), GFP_KERNEL);
+ if (!info) {
+ dev_warn(&vcdev->cdev->dev, "no info\n");
+ err = -ENOMEM;
+ goto out_err;
+ }
+ info->info_block = kzalloc(sizeof(*info->info_block),
+ GFP_DMA | GFP_KERNEL);
+ if (!info->info_block) {
+ dev_warn(&vcdev->cdev->dev, "no info block\n");
+ err = -ENOMEM;
+ goto out_err;
+ }
+ info->num = virtio_ccw_read_vq_conf(vcdev, ccw, i);
+ size = PAGE_ALIGN(vring_size(info->num, KVM_VIRTIO_CCW_RING_ALIGN));
+ info->queue = alloc_pages_exact(size, GFP_KERNEL | __GFP_ZERO);
+ if (info->queue == NULL) {
+ dev_warn(&vcdev->cdev->dev, "no queue\n");
+ err = -ENOMEM;
+ goto out_err;
+ }
+
+ vq = vring_new_virtqueue(i, info->num, KVM_VIRTIO_CCW_RING_ALIGN, vdev,
+ true, info->queue, virtio_ccw_kvm_notify,
+ callback, name);
+ if (!vq) {
+ /* For now, we fail if we can't get the requested size. */
+ dev_warn(&vcdev->cdev->dev, "no vq\n");
+ err = -ENOMEM;
+ goto out_err;
+ }
+
+ /* Register it with the host. */
+ info->info_block->queue = (__u64)info->queue;
+ info->info_block->align = KVM_VIRTIO_CCW_RING_ALIGN;
+ info->info_block->index = i;
+ info->info_block->num = info->num;
+ ccw->cmd_code = CCW_CMD_SET_VQ;
+ ccw->flags = 0;
+ ccw->count = sizeof(*info->info_block);
+ ccw->cda = (__u32)(unsigned long)(info->info_block);
+ err = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_VQ | i);
+ if (err) {
+ dev_warn(&vcdev->cdev->dev, "SET_VQ failed\n");
+ goto out_err;
+ }
+
+ info->vq = vq;
+ vq->priv = info;
+
+ /* Save it to our list. */
+ spin_lock_irqsave(&vcdev->lock, flags);
+ list_add(&info->node, &vcdev->virtqueues);
+ spin_unlock_irqrestore(&vcdev->lock, flags);
+
+ return vq;
+
+out_err:
+ if (vq)
+ vring_del_virtqueue(vq);
+ if (info) {
+ if (info->queue)
+ free_pages_exact(info->queue, size);
+ kfree(info->info_block);
+ }
+ kfree(info);
+ return ERR_PTR(err);
+}
+
+static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+ struct virtqueue *vqs[],
+ vq_callback_t *callbacks[],
+ const char *names[])
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ unsigned long *indicatorp = NULL;
+ int ret, i;
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return -ENOMEM;
+
+ for (i = 0; i < nvqs; ++i) {
+ vqs[i] = virtio_ccw_setup_vq(vdev, i, callbacks[i], names[i],
+ ccw);
+ if (IS_ERR(vqs[i])) {
+ ret = PTR_ERR(vqs[i]);
+ vqs[i] = NULL;
+ goto out;
+ }
+ }
+ ret = -ENOMEM;
+ /* We need a data area under 2G to communicate. */
+ indicatorp = kmalloc(sizeof(&vcdev->indicators), GFP_DMA | GFP_KERNEL);
+ if (!indicatorp)
+ goto out;
+ *indicatorp = (unsigned long) &vcdev->indicators;
+ /* Register queue indicators with host. */
+ vcdev->indicators = 0;
+ ccw->cmd_code = CCW_CMD_SET_IND;
+ ccw->flags = 0;
+ ccw->count = sizeof(vcdev->indicators);
+ ccw->cda = (__u32)(unsigned long) indicatorp;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_IND);
+ if (ret)
+ goto out;
+ /* Register indicators2 with host for config changes */
+ *indicatorp = (unsigned long) &vcdev->indicators2;
+ vcdev->indicators2 = 0;
+ ccw->cmd_code = CCW_CMD_SET_CONF_IND;
+ ccw->flags = 0;
+ ccw->count = sizeof(vcdev->indicators2);
+ ccw->cda = (__u32)(unsigned long) indicatorp;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_CONF_IND);
+ if (ret)
+ goto out;
+
+ kfree(indicatorp);
+ kfree(ccw);
+ return 0;
+out:
+ kfree(indicatorp);
+ kfree(ccw);
+ virtio_ccw_del_vqs(vdev);
+ return ret;
+}
+
+static void virtio_ccw_reset(struct virtio_device *vdev)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+ /* Zero status bits. */
+ *vcdev->status = 0;
+
+ /* Send a reset ccw on device. */
+ ccw->cmd_code = CCW_CMD_VDEV_RESET;
+ ccw->flags = 0;
+ ccw->count = 0;
+ ccw->cda = 0;
+ ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_RESET);
+ kfree(ccw);
+}
+
+static u32 virtio_ccw_get_features(struct virtio_device *vdev)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ struct virtio_feature_desc *features;
+ int ret, rc;
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return 0;
+
+ features = kzalloc(sizeof(*features), GFP_DMA | GFP_KERNEL);
+ if (!features) {
+ rc = 0;
+ goto out_free;
+ }
+ /* Read the feature bits from the host. */
+ /* TODO: Features > 32 bits */
+ features->index = 0;
+ ccw->cmd_code = CCW_CMD_READ_FEAT;
+ ccw->flags = 0;
+ ccw->count = sizeof(*features);
+ ccw->cda = (__u32)(unsigned long)features;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_FEAT);
+ if (ret) {
+ rc = 0;
+ goto out_free;
+ }
+
+ rc = le32_to_cpu(features->features);
+
+out_free:
+ kfree(features);
+ kfree(ccw);
+ return rc;
+}
+
+static void virtio_ccw_finalize_features(struct virtio_device *vdev)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ struct virtio_feature_desc *features;
+ int i;
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+ features = kzalloc(sizeof(*features), GFP_DMA | GFP_KERNEL);
+ if (!features)
+ goto out_free;
+
+ /* Give virtio_ring a chance to accept features. */
+ vring_transport_features(vdev);
+
+ for (i = 0; i < sizeof(*vdev->features) / sizeof(features->features);
+ i++) {
+ int highbits = i % 2 ? 32 : 0;
+ features->index = i;
+ features->features = cpu_to_le32(vdev->features[i / 2]
+ >> highbits);
+ /* Write the feature bits to the host. */
+ ccw->cmd_code = CCW_CMD_WRITE_FEAT;
+ ccw->flags = 0;
+ ccw->count = sizeof(*features);
+ ccw->cda = (__u32)(unsigned long)features;
+ ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_WRITE_FEAT);
+ }
+out_free:
+ kfree(features);
+ kfree(ccw);
+}
+
+static void virtio_ccw_get_config(struct virtio_device *vdev,
+ unsigned int offset, void *buf, unsigned len)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ int ret;
+ struct ccw1 *ccw;
+ void *config_area;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+ config_area = kzalloc(VIRTIO_CCW_CONFIG_SIZE, GFP_DMA | GFP_KERNEL);
+ if (!config_area)
+ goto out_free;
+
+ /* Read the config area from the host. */
+ ccw->cmd_code = CCW_CMD_READ_CONF;
+ ccw->flags = 0;
+ ccw->count = offset + len;
+ ccw->cda = (__u32)(unsigned long)config_area;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_CONFIG);
+ if (ret)
+ goto out_free;
+
+ memcpy(vcdev->config, config_area, sizeof(vcdev->config));
+ memcpy(buf, &vcdev->config[offset], len);
+
+out_free:
+ kfree(config_area);
+ kfree(ccw);
+}
+
+static void virtio_ccw_set_config(struct virtio_device *vdev,
+ unsigned int offset, const void *buf,
+ unsigned len)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ struct ccw1 *ccw;
+ void *config_area;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+ config_area = kzalloc(VIRTIO_CCW_CONFIG_SIZE, GFP_DMA | GFP_KERNEL);
+ if (!config_area)
+ goto out_free;
+
+ memcpy(&vcdev->config[offset], buf, len);
+ /* Write the config area to the host. */
+ memcpy(config_area, vcdev->config, sizeof(vcdev->config));
+ ccw->cmd_code = CCW_CMD_WRITE_CONF;
+ ccw->flags = 0;
+ ccw->count = offset + len;
+ ccw->cda = (__u32)(unsigned long)config_area;
+ ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_WRITE_CONFIG);
+
+out_free:
+ kfree(config_area);
+ kfree(ccw);
+}
+
+static u8 virtio_ccw_get_status(struct virtio_device *vdev)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+
+ return *vcdev->status;
+}
+
+static void virtio_ccw_set_status(struct virtio_device *vdev, u8 status)
+{
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
+ struct ccw1 *ccw;
+
+ ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
+ if (!ccw)
+ return;
+
+ /* Write the status to the host. */
+ *vcdev->status = status;
+ ccw->cmd_code = CCW_CMD_WRITE_STATUS;
+ ccw->flags = 0;
+ ccw->count = sizeof(status);
+ ccw->cda = (__u32)(unsigned long)vcdev->status;
+ ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_WRITE_STATUS);
+ kfree(ccw);
+}
+
+static struct virtio_config_ops virtio_ccw_config_ops = {
+ .get_features = virtio_ccw_get_features,
+ .finalize_features = virtio_ccw_finalize_features,
+ .get = virtio_ccw_get_config,
+ .set = virtio_ccw_set_config,
+ .get_status = virtio_ccw_get_status,
+ .set_status = virtio_ccw_set_status,
+ .reset = virtio_ccw_reset,
+ .find_vqs = virtio_ccw_find_vqs,
+ .del_vqs = virtio_ccw_del_vqs,
+};
+
+
+/*
+ * ccw bus driver related functions
+ */
+
+static void virtio_ccw_release_dev(struct device *_d)
+{
+ struct virtio_device *dev = container_of(_d, struct virtio_device,
+ dev);
+ struct virtio_ccw_device *vcdev = to_vc_device(dev);
+
+ kfree(vcdev->status);
+ kfree(vcdev->config_block);
+ kfree(vcdev);
+}
+
+static int irb_is_error(struct irb *irb)
+{
+ if (scsw_cstat(&irb->scsw) != 0)
+ return 1;
+ if (scsw_dstat(&irb->scsw) & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END))
+ return 1;
+ if (scsw_cc(&irb->scsw) != 0)
+ return 1;
+ return 0;
+}
+
+static struct virtqueue *virtio_ccw_vq_by_ind(struct virtio_ccw_device *vcdev,
+ int index)
+{
+ struct virtio_ccw_vq_info *info;
+ unsigned long flags;
+ struct virtqueue *vq;
+
+ vq = NULL;
+ spin_lock_irqsave(&vcdev->lock, flags);
+ list_for_each_entry(info, &vcdev->virtqueues, node) {
+ if (virtqueue_get_queue_index(info->vq) == index) {
+ vq = info->vq;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&vcdev->lock, flags);
+ return vq;
+}
+
+static void virtio_ccw_int_handler(struct ccw_device *cdev,
+ unsigned long intparm,
+ struct irb *irb)
+{
+ __u32 activity = intparm & VIRTIO_CCW_INTPARM_MASK;
+ struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+ int i;
+ struct virtqueue *vq;
+ struct virtio_driver *drv;
+
+ /* Check if it's a notification from the host. */
+ if ((intparm == 0) &&
+ (scsw_stctl(&irb->scsw) ==
+ (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))) {
+ /* OK */
+ }
+ if (irb_is_error(irb))
+ vcdev->err = -EIO; /* XXX - use real error */
+ if (vcdev->curr_io & activity) {
+ switch (activity) {
+ case VIRTIO_CCW_DOING_READ_FEAT:
+ case VIRTIO_CCW_DOING_WRITE_FEAT:
+ case VIRTIO_CCW_DOING_READ_CONFIG:
+ case VIRTIO_CCW_DOING_WRITE_CONFIG:
+ case VIRTIO_CCW_DOING_WRITE_STATUS:
+ case VIRTIO_CCW_DOING_SET_VQ:
+ case VIRTIO_CCW_DOING_SET_IND:
+ case VIRTIO_CCW_DOING_SET_CONF_IND:
+ case VIRTIO_CCW_DOING_RESET:
+ case VIRTIO_CCW_DOING_READ_VQ_CONF:
+ vcdev->curr_io &= ~activity;
+ wake_up(&vcdev->wait_q);
+ break;
+ default:
+ /* don't know what to do... */
+ dev_warn(&cdev->dev, "Suspicious activity '%08x'\n",
+ activity);
+ WARN_ON(1);
+ break;
+ }
+ }
+ for_each_set_bit(i, &vcdev->indicators,
+ sizeof(vcdev->indicators) * BITS_PER_BYTE) {
+ /* The bit clear must happen before the vring kick. */
+ clear_bit(i, &vcdev->indicators);
+ barrier();
+ vq = virtio_ccw_vq_by_ind(vcdev, i);
+ vring_interrupt(0, vq);
+ }
+ if (test_bit(0, &vcdev->indicators2)) {
+ drv = container_of(vcdev->vdev.dev.driver,
+ struct virtio_driver, driver);
+
+ if (drv && drv->config_changed)
+ drv->config_changed(&vcdev->vdev);
+ clear_bit(0, &vcdev->indicators2);
+ }
+}
+
+/*
+ * We usually want to autoonline all devices, but give the admin
+ * a way to exempt devices from this.
+ */
+#define __DEV_WORDS ((__MAX_SUBCHANNEL + (8*sizeof(long) - 1)) / \
+ (8*sizeof(long)))
+static unsigned long devs_no_auto[__MAX_SSID + 1][__DEV_WORDS];
+
+static char *no_auto = "";
+
+module_param(no_auto, charp, 0444);
+MODULE_PARM_DESC(no_auto, "list of ccw bus id ranges not to be auto-onlined");
+
+static int virtio_ccw_check_autoonline(struct ccw_device *cdev)
+{
+ struct ccw_dev_id id;
+
+ ccw_device_get_id(cdev, &id);
+ if (test_bit(id.devno, devs_no_auto[id.ssid]))
+ return 0;
+ return 1;
+}
+
+static void virtio_ccw_auto_online(void *data, async_cookie_t cookie)
+{
+ struct ccw_device *cdev = data;
+ int ret;
+
+ ret = ccw_device_set_online(cdev);
+ if (ret)
+ dev_warn(&cdev->dev, "Failed to set online: %d\n", ret);
+}
+
+static int virtio_ccw_probe(struct ccw_device *cdev)
+{
+ cdev->handler = virtio_ccw_int_handler;
+
+ if (virtio_ccw_check_autoonline(cdev))
+ async_schedule(virtio_ccw_auto_online, cdev);
+ return 0;
+}
+
+static void virtio_ccw_remove(struct ccw_device *cdev)
+{
+ struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+
+ if (cdev->online) {
+ unregister_virtio_device(&vcdev->vdev);
+ dev_set_drvdata(&cdev->dev, NULL);
+ }
+ cdev->handler = NULL;
+}
+
+static int virtio_ccw_offline(struct ccw_device *cdev)
+{
+ struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+
+ unregister_virtio_device(&vcdev->vdev);
+ dev_set_drvdata(&cdev->dev, NULL);
+ return 0;
+}
+
+
+static int virtio_ccw_online(struct ccw_device *cdev)
+{
+ int ret;
+ struct virtio_ccw_device *vcdev;
+
+ vcdev = kzalloc(sizeof(*vcdev), GFP_KERNEL);
+ if (!vcdev) {
+ dev_warn(&cdev->dev, "Could not get memory for virtio\n");
+ ret = -ENOMEM;
+ goto out_free;
+ }
+ vcdev->config_block = kzalloc(sizeof(*vcdev->config_block),
+ GFP_DMA | GFP_KERNEL);
+ if (!vcdev->config_block) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+ vcdev->status = kzalloc(sizeof(*vcdev->status), GFP_DMA | GFP_KERNEL);
+ if (!vcdev->status) {
+ ret = -ENOMEM;
+ goto out_free;
+ }
+
+ vcdev->vdev.dev.parent = &cdev->dev;
+ vcdev->vdev.dev.release = virtio_ccw_release_dev;
+ vcdev->vdev.config = &virtio_ccw_config_ops;
+ vcdev->cdev = cdev;
+ init_waitqueue_head(&vcdev->wait_q);
+ INIT_LIST_HEAD(&vcdev->virtqueues);
+ spin_lock_init(&vcdev->lock);
+
+ dev_set_drvdata(&cdev->dev, vcdev);
+ vcdev->vdev.id.vendor = cdev->id.cu_type;
+ vcdev->vdev.id.device = cdev->id.cu_model;
+ ret = register_virtio_device(&vcdev->vdev);
+ if (ret) {
+ dev_warn(&cdev->dev, "Failed to register virtio device: %d\n",
+ ret);
+ goto out_put;
+ }
+ return 0;
+out_put:
+ dev_set_drvdata(&cdev->dev, NULL);
+ put_device(&vcdev->vdev.dev);
+ return ret;
+out_free:
+ if (vcdev) {
+ kfree(vcdev->status);
+ kfree(vcdev->config_block);
+ }
+ kfree(vcdev);
+ return ret;
+}
+
+static int virtio_ccw_cio_notify(struct ccw_device *cdev, int event)
+{
+ /* TODO: Check whether we need special handling here. */
+ return 0;
+}
+
+static struct ccw_device_id virtio_ids[] = {
+ { CCW_DEVICE(0x3832, 0) },
+ {},
+};
+MODULE_DEVICE_TABLE(ccw, virtio_ids);
+
+static struct ccw_driver virtio_ccw_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "virtio_ccw",
+ },
+ .ids = virtio_ids,
+ .probe = virtio_ccw_probe,
+ .remove = virtio_ccw_remove,
+ .set_offline = virtio_ccw_offline,
+ .set_online = virtio_ccw_online,
+ .notify = virtio_ccw_cio_notify,
+ .int_class = IRQIO_VIR,
+};
+
+static int __init pure_hex(char **cp, unsigned int *val, int min_digit,
+ int max_digit, int max_val)
+{
+ int diff;
+
+ diff = 0;
+ *val = 0;
+
+ while (diff <= max_digit) {
+ int value = hex_to_bin(**cp);
+
+ if (value < 0)
+ break;
+ *val = *val * 16 + value;
+ (*cp)++;
+ diff++;
+ }
+
+ if ((diff < min_digit) || (diff > max_digit) || (*val > max_val))
+ return 1;
+
+ return 0;
+}
+
+static int __init parse_busid(char *str, unsigned int *cssid,
+ unsigned int *ssid, unsigned int *devno)
+{
+ char *str_work;
+ int rc, ret;
+
+ rc = 1;
+
+ if (*str == '\0')
+ goto out;
+
+ str_work = str;
+ ret = pure_hex(&str_work, cssid, 1, 2, __MAX_CSSID);
+ if (ret || (str_work[0] != '.'))
+ goto out;
+ str_work++;
+ ret = pure_hex(&str_work, ssid, 1, 1, __MAX_SSID);
+ if (ret || (str_work[0] != '.'))
+ goto out;
+ str_work++;
+ ret = pure_hex(&str_work, devno, 4, 4, __MAX_SUBCHANNEL);
+ if (ret || (str_work[0] != '\0'))
+ goto out;
+
+ rc = 0;
+out:
+ return rc;
+}
+
+static void __init no_auto_parse(void)
+{
+ unsigned int from_cssid, to_cssid, from_ssid, to_ssid, from, to;
+ char *parm, *str;
+ int rc;
+
+ str = no_auto;
+ while ((parm = strsep(&str, ","))) {
+ rc = parse_busid(strsep(&parm, "-"), &from_cssid,
+ &from_ssid, &from);
+ if (rc)
+ continue;
+ if (parm != NULL) {
+ rc = parse_busid(parm, &to_cssid,
+ &to_ssid, &to);
+ if ((from_ssid > to_ssid) ||
+ ((from_ssid == to_ssid) && (from > to)))
+ rc = -EINVAL;
+ } else {
+ to_cssid = from_cssid;
+ to_ssid = from_ssid;
+ to = from;
+ }
+ if (rc)
+ continue;
+ while ((from_ssid < to_ssid) ||
+ ((from_ssid == to_ssid) && (from <= to))) {
+ set_bit(from, devs_no_auto[from_ssid]);
+ from++;
+ if (from > __MAX_SUBCHANNEL) {
+ from_ssid++;
+ from = 0;
+ }
+ }
+ }
+}
+
+static int __init virtio_ccw_init(void)
+{
+ /* parse no_auto string before we do anything further */
+ no_auto_parse();
+ return ccw_driver_register(&virtio_ccw_driver);
+}
+module_init(virtio_ccw_init);
+
+static void __exit virtio_ccw_exit(void)
+{
+ ccw_driver_unregister(&virtio_ccw_driver);
+}
+module_exit(virtio_ccw_exit);
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index dfda748c400..8b3f5599180 100644
--- a/drivers/s390/net/Kconfig
+++ b/drivers/s390/net/Kconfig
@@ -74,8 +74,8 @@ config QETH
depends on CCW && NETDEVICES && IP_MULTICAST && QDIO
help
This driver supports the IBM System z OSA Express adapters
- in QDIO mode (all media types), HiperSockets interfaces and VM GuestLAN
- interfaces in QDIO and HIPER mode.
+ in QDIO mode (all media types), HiperSockets interfaces and z/VM
+ virtual NICs for Guest LAN and VSWITCH.
For details please refer to the documentation provided by IBM at
<http://www.ibm.com/developerworks/linux/linux390>
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 480fbeab025..d87961d4c0d 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -678,6 +678,7 @@ struct qeth_card_options {
int performance_stats;
int rx_sg_cb;
enum qeth_ipa_isolation_modes isolation;
+ enum qeth_ipa_isolation_modes prev_isolation;
int sniffer;
enum qeth_cq cq;
char hsuid[9];
@@ -789,6 +790,7 @@ struct qeth_card {
struct qeth_rx rx;
struct delayed_work buffer_reclaim_work;
int reclaim_index;
+ struct work_struct close_dev_work;
};
struct qeth_card_list_struct {
@@ -816,7 +818,7 @@ static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
static inline int qeth_get_micros(void)
{
- return (int) (get_clock() >> 12);
+ return (int) (get_tod_clock() >> 12);
}
static inline int qeth_get_ip_version(struct sk_buff *skb)
@@ -909,9 +911,6 @@ struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
int qeth_mdio_read(struct net_device *, int, int);
int qeth_snmp_command(struct qeth_card *, char __user *);
int qeth_query_oat_command(struct qeth_card *, char __user *);
-struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *, __u32, __u32);
-int qeth_default_setadapterparms_cb(struct qeth_card *, struct qeth_reply *,
- unsigned long);
int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
void *reply_param);
@@ -928,12 +927,13 @@ void qeth_core_get_strings(struct net_device *, u32, u8 *);
void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
-int qeth_set_access_ctrl_online(struct qeth_card *card);
+int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
int qeth_hdr_chk_and_bounce(struct sk_buff *, int);
int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
void qeth_trace_features(struct qeth_card *);
+void qeth_close_dev(struct qeth_card *);
/* exports for OSN */
int qeth_osn_assist(struct net_device *, void *, int);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 638a57f4d8a..0d8cdff8181 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -68,6 +68,27 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
enum qeth_qdio_buffer_states newbufstate);
static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
+static struct workqueue_struct *qeth_wq;
+
+static void qeth_close_dev_handler(struct work_struct *work)
+{
+ struct qeth_card *card;
+
+ card = container_of(work, struct qeth_card, close_dev_work);
+ QETH_CARD_TEXT(card, 2, "cldevhdl");
+ rtnl_lock();
+ dev_close(card->dev);
+ rtnl_unlock();
+ ccwgroup_set_offline(card->gdev);
+}
+
+void qeth_close_dev(struct qeth_card *card)
+{
+ QETH_CARD_TEXT(card, 2, "cldevsubm");
+ queue_work(qeth_wq, &card->close_dev_work);
+}
+EXPORT_SYMBOL_GPL(qeth_close_dev);
+
static inline const char *qeth_get_cardname(struct qeth_card *card)
{
if (card->info.guestlan) {
@@ -542,11 +563,23 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
} else {
switch (cmd->hdr.command) {
case IPA_CMD_STOPLAN:
- dev_warn(&card->gdev->dev,
+ if (cmd->hdr.return_code ==
+ IPA_RC_VEPA_TO_VEB_TRANSITION) {
+ dev_err(&card->gdev->dev,
+ "Interface %s is down because the "
+ "adjacent port is no longer in "
+ "reflective relay mode\n",
+ QETH_CARD_IFNAME(card));
+ qeth_close_dev(card);
+ } else {
+ dev_warn(&card->gdev->dev,
"The link for interface %s on CHPID"
" 0x%X failed\n",
QETH_CARD_IFNAME(card),
card->info.chpid);
+ qeth_issue_ipa_msg(cmd,
+ cmd->hdr.return_code, card);
+ }
card->lan_online = 0;
if (card->dev && netif_carrier_ok(card->dev))
netif_carrier_off(card->dev);
@@ -1416,6 +1449,7 @@ static int qeth_setup_card(struct qeth_card *card)
/* init QDIO stuff */
qeth_init_qdio_info(card);
INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
+ INIT_WORK(&card->close_dev_work, qeth_close_dev_handler);
return 0;
}
@@ -2868,7 +2902,7 @@ int qeth_send_startlan(struct qeth_card *card)
}
EXPORT_SYMBOL_GPL(qeth_send_startlan);
-int qeth_default_setadapterparms_cb(struct qeth_card *card,
+static int qeth_default_setadapterparms_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
{
struct qeth_ipa_cmd *cmd;
@@ -2881,7 +2915,6 @@ int qeth_default_setadapterparms_cb(struct qeth_card *card,
cmd->data.setadapterparms.hdr.return_code;
return 0;
}
-EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
static int qeth_query_setadapterparms_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
@@ -2901,7 +2934,7 @@ static int qeth_query_setadapterparms_cb(struct qeth_card *card,
return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
}
-struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
+static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
__u32 command, __u32 cmdlen)
{
struct qeth_cmd_buffer *iob;
@@ -2917,7 +2950,6 @@ struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
return iob;
}
-EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
int qeth_query_setadapterparms(struct qeth_card *card)
{
@@ -4059,6 +4091,7 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
{
struct qeth_ipa_cmd *cmd;
struct qeth_set_access_ctrl *access_ctrl_req;
+ int fallback = *(int *)reply->param;
QETH_CARD_TEXT(card, 4, "setaccb");
@@ -4068,12 +4101,14 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
cmd->data.setadapterparms.hdr.return_code);
+ if (cmd->data.setadapterparms.hdr.return_code !=
+ SET_ACCESS_CTRL_RC_SUCCESS)
+ QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
+ card->gdev->dev.kobj.name,
+ access_ctrl_req->subcmd_code,
+ cmd->data.setadapterparms.hdr.return_code);
switch (cmd->data.setadapterparms.hdr.return_code) {
case SET_ACCESS_CTRL_RC_SUCCESS:
- case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
- case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
- {
- card->options.isolation = access_ctrl_req->subcmd_code;
if (card->options.isolation == ISOLATION_MODE_NONE) {
dev_info(&card->gdev->dev,
"QDIO data connection isolation is deactivated\n");
@@ -4081,72 +4116,64 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
dev_info(&card->gdev->dev,
"QDIO data connection isolation is activated\n");
}
- QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
- card->gdev->dev.kobj.name,
- access_ctrl_req->subcmd_code,
- cmd->data.setadapterparms.hdr.return_code);
break;
- }
+ case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
+ QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already "
+ "deactivated\n", dev_name(&card->gdev->dev));
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
+ break;
+ case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
+ QETH_DBF_MESSAGE(2, "%s QDIO data connection isolation already"
+ " activated\n", dev_name(&card->gdev->dev));
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
+ break;
case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
- {
- QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
- card->gdev->dev.kobj.name,
- access_ctrl_req->subcmd_code,
- cmd->data.setadapterparms.hdr.return_code);
dev_err(&card->gdev->dev, "Adapter does not "
"support QDIO data connection isolation\n");
-
- /* ensure isolation mode is "none" */
- card->options.isolation = ISOLATION_MODE_NONE;
break;
- }
case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
- {
- QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
- card->gdev->dev.kobj.name,
- access_ctrl_req->subcmd_code,
- cmd->data.setadapterparms.hdr.return_code);
dev_err(&card->gdev->dev,
"Adapter is dedicated. "
"QDIO data connection isolation not supported\n");
-
- /* ensure isolation mode is "none" */
- card->options.isolation = ISOLATION_MODE_NONE;
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
break;
- }
case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
- {
- QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
- card->gdev->dev.kobj.name,
- access_ctrl_req->subcmd_code,
- cmd->data.setadapterparms.hdr.return_code);
dev_err(&card->gdev->dev,
"TSO does not permit QDIO data connection isolation\n");
-
- /* ensure isolation mode is "none" */
- card->options.isolation = ISOLATION_MODE_NONE;
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
+ break;
+ case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED:
+ dev_err(&card->gdev->dev, "The adjacent switch port does not "
+ "support reflective relay mode\n");
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
+ break;
+ case SET_ACCESS_CTRL_RC_REFLREL_FAILED:
+ dev_err(&card->gdev->dev, "The reflective relay mode cannot be "
+ "enabled at the adjacent switch port");
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
+ break;
+ case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED:
+ dev_warn(&card->gdev->dev, "Turning off reflective relay mode "
+ "at the adjacent switch failed\n");
break;
- }
default:
- {
/* this should never happen */
- QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
- "==UNKNOWN\n",
- card->gdev->dev.kobj.name,
- access_ctrl_req->subcmd_code,
- cmd->data.setadapterparms.hdr.return_code);
-
- /* ensure isolation mode is "none" */
- card->options.isolation = ISOLATION_MODE_NONE;
+ if (fallback)
+ card->options.isolation = card->options.prev_isolation;
break;
}
- }
qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
return 0;
}
static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
- enum qeth_ipa_isolation_modes isolation)
+ enum qeth_ipa_isolation_modes isolation, int fallback)
{
int rc;
struct qeth_cmd_buffer *iob;
@@ -4166,12 +4193,12 @@ static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
access_ctrl_req->subcmd_code = isolation;
rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
- NULL);
+ &fallback);
QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
return rc;
}
-int qeth_set_access_ctrl_online(struct qeth_card *card)
+int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback)
{
int rc = 0;
@@ -4181,12 +4208,13 @@ int qeth_set_access_ctrl_online(struct qeth_card *card)
card->info.type == QETH_CARD_TYPE_OSX) &&
qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
rc = qeth_setadpparms_set_access_ctrl(card,
- card->options.isolation);
+ card->options.isolation, fallback);
if (rc) {
QETH_DBF_MESSAGE(3,
"IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
card->gdev->dev.kobj.name,
rc);
+ rc = -EOPNOTSUPP;
}
} else if (card->options.isolation != ISOLATION_MODE_NONE) {
card->options.isolation = ISOLATION_MODE_NONE;
@@ -4672,7 +4700,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
init_data.output_sbal_state_array = card->qdio.out_bufstates;
init_data.scan_threshold =
- (card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32;
+ (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
@@ -4765,14 +4793,14 @@ static struct ccw_driver qeth_ccw_driver = {
int qeth_core_hardsetup_card(struct qeth_card *card)
{
- int retries = 0;
+ int retries = 3;
int rc;
QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
atomic_set(&card->force_alloc_skb, 0);
qeth_update_from_chp_desc(card);
retry:
- if (retries)
+ if (retries < 3)
QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
dev_name(&card->gdev->dev));
ccw_device_set_offline(CARD_DDEV(card));
@@ -4794,7 +4822,7 @@ retriable:
return rc;
} else if (rc) {
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
- if (++retries > 3)
+ if (--retries < 0)
goto out;
else
goto retry;
@@ -5094,13 +5122,81 @@ static const struct device_type qeth_osn_devtype = {
.groups = qeth_osn_attr_groups,
};
+#define DBF_NAME_LEN 20
+
+struct qeth_dbf_entry {
+ char dbf_name[DBF_NAME_LEN];
+ debug_info_t *dbf_info;
+ struct list_head dbf_list;
+};
+
+static LIST_HEAD(qeth_dbf_list);
+static DEFINE_MUTEX(qeth_dbf_list_mutex);
+
+static debug_info_t *qeth_get_dbf_entry(char *name)
+{
+ struct qeth_dbf_entry *entry;
+ debug_info_t *rc = NULL;
+
+ mutex_lock(&qeth_dbf_list_mutex);
+ list_for_each_entry(entry, &qeth_dbf_list, dbf_list) {
+ if (strcmp(entry->dbf_name, name) == 0) {
+ rc = entry->dbf_info;
+ break;
+ }
+ }
+ mutex_unlock(&qeth_dbf_list_mutex);
+ return rc;
+}
+
+static int qeth_add_dbf_entry(struct qeth_card *card, char *name)
+{
+ struct qeth_dbf_entry *new_entry;
+
+ card->debug = debug_register(name, 2, 1, 8);
+ if (!card->debug) {
+ QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
+ goto err;
+ }
+ if (debug_register_view(card->debug, &debug_hex_ascii_view))
+ goto err_dbg;
+ new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL);
+ if (!new_entry)
+ goto err_dbg;
+ strncpy(new_entry->dbf_name, name, DBF_NAME_LEN);
+ new_entry->dbf_info = card->debug;
+ mutex_lock(&qeth_dbf_list_mutex);
+ list_add(&new_entry->dbf_list, &qeth_dbf_list);
+ mutex_unlock(&qeth_dbf_list_mutex);
+
+ return 0;
+
+err_dbg:
+ debug_unregister(card->debug);
+err:
+ return -ENOMEM;
+}
+
+static void qeth_clear_dbf_list(void)
+{
+ struct qeth_dbf_entry *entry, *tmp;
+
+ mutex_lock(&qeth_dbf_list_mutex);
+ list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) {
+ list_del(&entry->dbf_list);
+ debug_unregister(entry->dbf_info);
+ kfree(entry);
+ }
+ mutex_unlock(&qeth_dbf_list_mutex);
+}
+
static int qeth_core_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card;
struct device *dev;
int rc;
unsigned long flags;
- char dbf_name[20];
+ char dbf_name[DBF_NAME_LEN];
QETH_DBF_TEXT(SETUP, 2, "probedev");
@@ -5119,13 +5215,12 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
dev_name(&gdev->dev));
- card->debug = debug_register(dbf_name, 2, 1, 8);
+ card->debug = qeth_get_dbf_entry(dbf_name);
if (!card->debug) {
- QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
- rc = -ENOMEM;
- goto err_card;
+ rc = qeth_add_dbf_entry(card, dbf_name);
+ if (rc)
+ goto err_card;
}
- debug_register_view(card->debug, &debug_hex_ascii_view);
card->read.ccwdev = gdev->cdev[0];
card->write.ccwdev = gdev->cdev[1];
@@ -5139,12 +5234,12 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
rc = qeth_determine_card_type(card);
if (rc) {
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
- goto err_dbf;
+ goto err_card;
}
rc = qeth_setup_card(card);
if (rc) {
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
- goto err_dbf;
+ goto err_card;
}
if (card->info.type == QETH_CARD_TYPE_OSN)
@@ -5157,7 +5252,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
case QETH_CARD_TYPE_OSM:
rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
if (rc)
- goto err_dbf;
+ goto err_card;
rc = card->discipline->setup(card->gdev);
if (rc)
goto err_disc;
@@ -5176,8 +5271,6 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
err_disc:
qeth_core_free_discipline(card);
-err_dbf:
- debug_unregister(card->debug);
err_card:
qeth_core_free_card(card);
err_dev:
@@ -5197,7 +5290,6 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
qeth_core_free_discipline(card);
}
- debug_unregister(card->debug);
write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
list_del(&card->list);
write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
@@ -5444,17 +5536,14 @@ void qeth_core_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct qeth_card *card = dev->ml_priv;
- if (card->options.layer2)
- strcpy(info->driver, "qeth_l2");
- else
- strcpy(info->driver, "qeth_l3");
- strcpy(info->version, "1.0");
- strcpy(info->fw_version, card->info.mcl_level);
- sprintf(info->bus_info, "%s/%s/%s",
- CARD_RDEV_ID(card),
- CARD_WDEV_ID(card),
- CARD_DDEV_ID(card));
+ strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
+ sizeof(info->driver));
+ strlcpy(info->version, "1.0", sizeof(info->version));
+ strlcpy(info->fw_version, card->info.mcl_level,
+ sizeof(info->fw_version));
+ snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
+ CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
}
EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
@@ -5554,9 +5643,12 @@ static int __init qeth_core_init(void)
pr_info("loading core functions\n");
INIT_LIST_HEAD(&qeth_core_card_list.list);
+ INIT_LIST_HEAD(&qeth_dbf_list);
rwlock_init(&qeth_core_card_list.rwlock);
mutex_init(&qeth_mod_mutex);
+ qeth_wq = create_singlethread_workqueue("qeth_wq");
+
rc = qeth_register_dbf_views();
if (rc)
goto out_err;
@@ -5603,6 +5695,8 @@ out_err:
static void __exit qeth_core_exit(void)
{
+ qeth_clear_dbf_list();
+ destroy_workqueue(qeth_wq);
ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
ccw_driver_unregister(&qeth_ccw_driver);
kmem_cache_destroy(qeth_qdio_outbuf_cache);
diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c
index 5cebfddb86b..06c55780005 100644
--- a/drivers/s390/net/qeth_core_mpc.c
+++ b/drivers/s390/net/qeth_core_mpc.c
@@ -204,6 +204,7 @@ static struct ipa_rc_msg qeth_ipa_rc_msg[] = {
{IPA_RC_INVALID_SETRTG_INDICATOR, "Invalid SETRTG indicator"},
{IPA_RC_MC_ADDR_ALREADY_DEFINED, "Multicast address already defined"},
{IPA_RC_LAN_OFFLINE, "STRTLAN_LAN_DISABLED - LAN offline"},
+ {IPA_RC_VEPA_TO_VEB_TRANSITION, "Adj. switch disabled port mode RR"},
{IPA_RC_INVALID_IP_VERSION2, "Invalid IP version"},
{IPA_RC_ENOMEM, "Memory problem"},
{IPA_RC_FFFF, "Unknown Error"}
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 3690bbf2cb3..07085d55f9a 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -177,6 +177,7 @@ enum qeth_ipa_return_codes {
IPA_RC_INVALID_SETRTG_INDICATOR = 0xe012,
IPA_RC_MC_ADDR_ALREADY_DEFINED = 0xe013,
IPA_RC_LAN_OFFLINE = 0xe080,
+ IPA_RC_VEPA_TO_VEB_TRANSITION = 0xe090,
IPA_RC_INVALID_IP_VERSION2 = 0xf001,
IPA_RC_ENOMEM = 0xfffe,
IPA_RC_FFFF = 0xffff
@@ -269,6 +270,9 @@ enum qeth_ipa_set_access_mode_rc {
SET_ACCESS_CTRL_RC_ALREADY_ISOLATED = 0x0010,
SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER = 0x0014,
SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF = 0x0018,
+ SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED = 0x0022,
+ SET_ACCESS_CTRL_RC_REFLREL_FAILED = 0x0024,
+ SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED = 0x0028,
};
@@ -386,6 +390,7 @@ struct qeth_snmp_ureq {
/* SET_ACCESS_CONTROL: same format for request and reply */
struct qeth_set_access_ctrl {
__u32 subcmd_code;
+ __u8 reserved[8];
} __attribute__((packed));
struct qeth_query_oat {
diff --git a/drivers/s390/net/qeth_core_sys.c b/drivers/s390/net/qeth_core_sys.c
index 9655dc0ea0e..425c0ecf1f3 100644
--- a/drivers/s390/net/qeth_core_sys.c
+++ b/drivers/s390/net/qeth_core_sys.c
@@ -513,10 +513,11 @@ static ssize_t qeth_dev_isolation_store(struct device *dev,
rc = count;
/* defer IP assist if device is offline (until discipline->set_online)*/
+ card->options.prev_isolation = card->options.isolation;
card->options.isolation = isolation;
if (card->state == CARD_STATE_SOFTSETUP ||
card->state == CARD_STATE_UP) {
- int ipa_rc = qeth_set_access_ctrl_online(card);
+ int ipa_rc = qeth_set_access_ctrl_online(card, 1);
if (ipa_rc != 0)
rc = ipa_rc;
}
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 73195553f84..d690166efea 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1025,9 +1025,14 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
contin:
if ((card->info.type == QETH_CARD_TYPE_OSD) ||
- (card->info.type == QETH_CARD_TYPE_OSX))
+ (card->info.type == QETH_CARD_TYPE_OSX)) {
/* configure isolation level */
- qeth_set_access_ctrl_online(card);
+ rc = qeth_set_access_ctrl_online(card, 0);
+ if (rc) {
+ rc = -ENODEV;
+ goto out_remove;
+ }
+ }
if (card->info.type != QETH_CARD_TYPE_OSN &&
card->info.type != QETH_CARD_TYPE_OSM)
@@ -1144,12 +1149,9 @@ static int qeth_l2_recover(void *ptr)
dev_info(&card->gdev->dev,
"Device successfully recovered!\n");
else {
- if (rtnl_trylock()) {
- dev_close(card->dev);
- rtnl_unlock();
- dev_warn(&card->gdev->dev, "The qeth device driver "
+ qeth_close_dev(card);
+ dev_warn(&card->gdev->dev, "The qeth device driver "
"failed to recover an error on the device\n");
- }
}
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 6e5eef01e66..091ca0efa1c 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1449,7 +1449,8 @@ static int qeth_l3_start_ipassists(struct qeth_card *card)
{
QETH_CARD_TEXT(card, 3, "strtipas");
- qeth_set_access_ctrl_online(card); /* go on*/
+ if (qeth_set_access_ctrl_online(card, 0))
+ return -EIO;
qeth_l3_start_ipa_arp_processing(card); /* go on*/
qeth_l3_start_ipa_ip_fragmentation(card); /* go on*/
qeth_l3_start_ipa_source_mac(card); /* go on*/
@@ -1640,6 +1641,7 @@ static void qeth_l3_add_mc(struct qeth_card *card, struct in_device *in4_dev)
}
}
+/* called with rcu_read_lock */
static void qeth_l3_add_vlan_mc(struct qeth_card *card)
{
struct in_device *in_dev;
@@ -1652,19 +1654,14 @@ static void qeth_l3_add_vlan_mc(struct qeth_card *card)
for_each_set_bit(vid, card->active_vlans, VLAN_N_VID) {
struct net_device *netdev;
- rcu_read_lock();
netdev = __vlan_find_dev_deep(card->dev, vid);
- rcu_read_unlock();
if (netdev == NULL ||
!(netdev->flags & IFF_UP))
continue;
- in_dev = in_dev_get(netdev);
+ in_dev = __in_dev_get_rcu(netdev);
if (!in_dev)
continue;
- rcu_read_lock();
qeth_l3_add_mc(card, in_dev);
- rcu_read_unlock();
- in_dev_put(in_dev);
}
}
@@ -1673,14 +1670,14 @@ static void qeth_l3_add_multicast_ipv4(struct qeth_card *card)
struct in_device *in4_dev;
QETH_CARD_TEXT(card, 4, "chkmcv4");
- in4_dev = in_dev_get(card->dev);
- if (in4_dev == NULL)
- return;
rcu_read_lock();
+ in4_dev = __in_dev_get_rcu(card->dev);
+ if (in4_dev == NULL)
+ goto unlock;
qeth_l3_add_mc(card, in4_dev);
qeth_l3_add_vlan_mc(card);
+unlock:
rcu_read_unlock();
- in_dev_put(in4_dev);
}
#ifdef CONFIG_QETH_IPV6
@@ -1705,6 +1702,7 @@ static void qeth_l3_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
}
}
+/* called with rcu_read_lock */
static void qeth_l3_add_vlan_mc6(struct qeth_card *card)
{
struct inet6_dev *in_dev;
@@ -1741,10 +1739,12 @@ static void qeth_l3_add_multicast_ipv6(struct qeth_card *card)
in6_dev = in6_dev_get(card->dev);
if (in6_dev == NULL)
return;
+ rcu_read_lock();
read_lock_bh(&in6_dev->lock);
qeth_l3_add_mc6(card, in6_dev);
qeth_l3_add_vlan_mc6(card);
read_unlock_bh(&in6_dev->lock);
+ rcu_read_unlock();
in6_dev_put(in6_dev);
}
#endif /* CONFIG_QETH_IPV6 */
@@ -1813,8 +1813,10 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
static void qeth_l3_free_vlan_addresses(struct qeth_card *card,
unsigned short vid)
{
+ rcu_read_lock();
qeth_l3_free_vlan_addresses4(card, vid);
qeth_l3_free_vlan_addresses6(card, vid);
+ rcu_read_unlock();
}
static int qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
@@ -3387,8 +3389,10 @@ contin:
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
if (!card->options.sniffer) {
rc = qeth_l3_start_ipassists(card);
- if (rc)
+ if (rc) {
QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
+ goto out_remove;
+ }
rc = qeth_l3_setrouting_v4(card);
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
@@ -3510,12 +3514,9 @@ static int qeth_l3_recover(void *ptr)
dev_info(&card->gdev->dev,
"Device successfully recovered!\n");
else {
- if (rtnl_trylock()) {
- dev_close(card->dev);
- rtnl_unlock();
- dev_warn(&card->gdev->dev, "The qeth device driver "
+ qeth_close_dev(card);
+ dev_warn(&card->gdev->dev, "The qeth device driver "
"failed to recover an error on the device\n");
- }
}
qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index c96320d79fb..c7e148f33b2 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -727,7 +727,7 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
zfcp_reqlist_add(adapter->req_list, req);
req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free);
- req->issued = get_clock();
+ req->issued = get_tod_clock();
if (zfcp_qdio_send(qdio, &req->qdio_req)) {
del_timer(&req->timer);
/* lookup request again, list might have changed */
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 50b5615848f..665e3cfaaf8 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -68,7 +68,7 @@ static inline void zfcp_qdio_account(struct zfcp_qdio *qdio)
unsigned long long now, span;
int used;
- now = get_clock_monotonic();
+ now = get_tod_clock_monotonic();
span = (now - qdio->req_q_time) >> 12;
used = QDIO_MAX_BUFFERS_PER_Q - atomic_read(&qdio->req_q_free);
qdio->req_q_util += used * span;