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-rw-r--r--drivers/s390/block/dasd.c34
-rw-r--r--drivers/s390/block/dasd_diag.c1
-rw-r--r--drivers/s390/block/dasd_eckd.c44
-rw-r--r--drivers/s390/block/dasd_fba.c22
-rw-r--r--drivers/s390/block/dasd_int.h3
-rw-r--r--drivers/s390/block/dcssblk.c4
-rw-r--r--drivers/s390/char/con3270.c38
-rw-r--r--drivers/s390/char/tty3270.c57
-rw-r--r--drivers/s390/cio/cio.c6
-rw-r--r--drivers/s390/cio/device_ops.c24
-rw-r--r--drivers/s390/cio/qdio_main.c46
-rw-r--r--drivers/s390/cio/qdio_perf.c12
-rw-r--r--drivers/s390/cio/qdio_perf.h10
-rw-r--r--drivers/s390/kvm/kvm_virtio.c43
-rw-r--r--drivers/s390/net/Kconfig14
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c30
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c10
-rw-r--r--drivers/s390/scsi/zfcp_def.h7
-rw-r--r--drivers/s390/scsi/zfcp_erp.c8
-rw-r--r--drivers/s390/scsi/zfcp_ext.h1
-rw-r--r--drivers/s390/scsi/zfcp_fc.c9
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c29
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c13
23 files changed, 249 insertions, 216 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 27a1be0cd4d..442bb98a282 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -851,8 +851,10 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
/* Check the cqr */
rc = dasd_check_cqr(cqr);
- if (rc)
+ if (rc) {
+ cqr->intrc = rc;
return rc;
+ }
device = (struct dasd_device *) cqr->startdev;
if (cqr->retries < 0) {
/* internal error 14 - start_IO run out of retries */
@@ -915,6 +917,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
BUG();
break;
}
+ cqr->intrc = rc;
return rc;
}
@@ -1454,8 +1457,12 @@ int dasd_sleep_on(struct dasd_ccw_req *cqr)
dasd_add_request_tail(cqr);
wait_event(generic_waitq, _wait_for_wakeup(cqr));
- /* Request status is either done or failed. */
- rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO;
+ if (cqr->status == DASD_CQR_DONE)
+ rc = 0;
+ else if (cqr->intrc)
+ rc = cqr->intrc;
+ else
+ rc = -EIO;
return rc;
}
@@ -1477,8 +1484,15 @@ int dasd_sleep_on_interruptible(struct dasd_ccw_req *cqr)
dasd_cancel_req(cqr);
/* wait (non-interruptible) for final status */
wait_event(generic_waitq, _wait_for_wakeup(cqr));
+ cqr->intrc = rc;
}
- rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO;
+
+ if (cqr->status == DASD_CQR_DONE)
+ rc = 0;
+ else if (cqr->intrc)
+ rc = cqr->intrc;
+ else
+ rc = -EIO;
return rc;
}
@@ -1523,8 +1537,12 @@ int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr)
wait_event(generic_waitq, _wait_for_wakeup(cqr));
- /* Request status is either done or failed. */
- rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO;
+ if (cqr->status == DASD_CQR_DONE)
+ rc = 0;
+ else if (cqr->intrc)
+ rc = cqr->intrc;
+ else
+ rc = -EIO;
return rc;
}
@@ -2427,12 +2445,12 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic,
- void **rdc_buffer, int rdc_buffer_size)
+ void *rdc_buffer, int rdc_buffer_size)
{
int ret;
struct dasd_ccw_req *cqr;
- cqr = dasd_generic_build_rdc(device, *rdc_buffer, rdc_buffer_size,
+ cqr = dasd_generic_build_rdc(device, rdc_buffer, rdc_buffer_size,
magic);
if (IS_ERR(cqr))
return PTR_ERR(cqr);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 2efaddfae56..644086ba2ed 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -202,6 +202,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
rc = -EIO;
break;
}
+ cqr->intrc = rc;
return rc;
}
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index a41c94053e6..cf0cfdba124 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1097,20 +1097,20 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
{
struct dasd_eckd_private *private;
struct dasd_block *block;
- void *rdc_data;
int is_known, rc;
private = (struct dasd_eckd_private *) device->private;
- if (private == NULL) {
- private = kzalloc(sizeof(struct dasd_eckd_private),
- GFP_KERNEL | GFP_DMA);
- if (private == NULL) {
+ if (!private) {
+ private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+ if (!private) {
dev_warn(&device->cdev->dev,
"Allocating memory for private DASD data "
"failed\n");
return -ENOMEM;
}
device->private = (void *) private;
+ } else {
+ memset(private, 0, sizeof(*private));
}
/* Invalidate status of initial analysis. */
private->init_cqr_status = -1;
@@ -1161,9 +1161,8 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
goto out_err3;
/* Read Device Characteristics */
- rdc_data = (void *) &(private->rdc_data);
- memset(rdc_data, 0, sizeof(rdc_data));
- rc = dasd_generic_read_dev_chars(device, "ECKD", &rdc_data, 64);
+ rc = dasd_generic_read_dev_chars(device, "ECKD", &private->rdc_data,
+ 64);
if (rc) {
DBF_EVENT(DBF_WARNING,
"Read device characteristics failed, rc=%d for "
@@ -1183,7 +1182,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
private->rdc_data.dev_model,
private->rdc_data.cu_type,
private->rdc_data.cu_model.model,
- private->real_cyl,
+ private->real_cyl,
private->rdc_data.trk_per_cyl,
private->rdc_data.sec_per_trk);
return 0;
@@ -2336,9 +2335,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
{
int tpm, cmdrtd, cmdwtd;
int use_prefix;
-
- struct dasd_eckd_private *private;
+#if defined(CONFIG_64BIT)
int fcx_in_css, fcx_in_gneq, fcx_in_features;
+#endif
+ struct dasd_eckd_private *private;
struct dasd_device *basedev;
sector_t first_rec, last_rec;
sector_t first_trk, last_trk;
@@ -2361,11 +2361,15 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
last_offs = sector_div(last_trk, blk_per_trk);
cdlspecial = (private->uses_cdl && first_rec < 2*blk_per_trk);
- /* is transport mode supported ? */
+ /* is transport mode supported? */
+#if defined(CONFIG_64BIT)
fcx_in_css = css_general_characteristics.fcx;
fcx_in_gneq = private->gneq->reserved2[7] & 0x04;
fcx_in_features = private->features.feature[40] & 0x80;
tpm = fcx_in_css && fcx_in_gneq && fcx_in_features;
+#else
+ tpm = 0;
+#endif
/* is read track data and write track data in command mode supported? */
cmdrtd = private->features.feature[9] & 0x20;
@@ -3013,8 +3017,9 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device,
" I/O status report for device %s:\n",
dev_name(&device->cdev->dev));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
- " in req: %p CS: 0x%02X DS: 0x%02X\n", req,
- scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw));
+ " in req: %p CS: 0x%02X DS: 0x%02X CC: 0x%02X RC: %d\n",
+ req, scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw),
+ scsw_cc(&irb->scsw), req->intrc);
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" device %s: Failing CCW: %p\n",
dev_name(&device->cdev->dev),
@@ -3115,9 +3120,10 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device,
" I/O status report for device %s:\n",
dev_name(&device->cdev->dev));
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
- " in req: %p CS: 0x%02X DS: 0x%02X "
+ " in req: %p CS: 0x%02X DS: 0x%02X CC: 0x%02X RC: %d "
"fcxs: 0x%02X schxs: 0x%02X\n", req,
scsw_cstat(&irb->scsw), scsw_dstat(&irb->scsw),
+ scsw_cc(&irb->scsw), req->intrc,
irb->scsw.tm.fcxs, irb->scsw.tm.schxs);
len += sprintf(page + len, KERN_ERR PRINTK_HEADER
" device %s: Failing TCW: %p\n",
@@ -3273,8 +3279,14 @@ static struct dasd_discipline dasd_eckd_discipline = {
static int __init
dasd_eckd_init(void)
{
+ int ret;
+
ASCEBC(dasd_eckd_discipline.ebcname, 4);
- return ccw_driver_register(&dasd_eckd_driver);
+ ret = ccw_driver_register(&dasd_eckd_driver);
+ if (!ret)
+ wait_for_device_probe();
+
+ return ret;
}
static void __exit
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 8912358daa2..597c6ffdb9f 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -122,20 +122,20 @@ dasd_fba_check_characteristics(struct dasd_device *device)
struct dasd_block *block;
struct dasd_fba_private *private;
struct ccw_device *cdev = device->cdev;
- void *rdc_data;
int rc;
private = (struct dasd_fba_private *) device->private;
- if (private == NULL) {
- private = kzalloc(sizeof(struct dasd_fba_private),
- GFP_KERNEL | GFP_DMA);
- if (private == NULL) {
+ if (!private) {
+ private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+ if (!private) {
dev_warn(&device->cdev->dev,
"Allocating memory for private DASD "
"data failed\n");
return -ENOMEM;
}
device->private = (void *) private;
+ } else {
+ memset(private, 0, sizeof(*private));
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
@@ -150,8 +150,8 @@ dasd_fba_check_characteristics(struct dasd_device *device)
block->base = device;
/* Read Device Characteristics */
- rdc_data = (void *) &(private->rdc_data);
- rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32);
+ rc = dasd_generic_read_dev_chars(device, "FBA ", &private->rdc_data,
+ 32);
if (rc) {
DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
"error %d for device: %s",
@@ -604,8 +604,14 @@ static struct dasd_discipline dasd_fba_discipline = {
static int __init
dasd_fba_init(void)
{
+ int ret;
+
ASCEBC(dasd_fba_discipline.ebcname, 4);
- return ccw_driver_register(&dasd_fba_driver);
+ ret = ccw_driver_register(&dasd_fba_driver);
+ if (!ret)
+ wait_for_device_probe();
+
+ return ret;
}
static void __exit
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index c1e487f774c..f97ceb79507 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -173,6 +173,7 @@ struct dasd_ccw_req {
void *data; /* pointer to data area */
/* these are important for recovering erroneous requests */
+ int intrc; /* internal error, e.g. from start_IO */
struct irb irb; /* device status in case of an error */
struct dasd_ccw_req *refers; /* ERP-chain queueing. */
void *function; /* originating ERP action */
@@ -578,7 +579,7 @@ int dasd_generic_set_offline (struct ccw_device *cdev);
int dasd_generic_notify(struct ccw_device *, int);
void dasd_generic_handle_state_change(struct dasd_device *);
-int dasd_generic_read_dev_chars(struct dasd_device *, char *, void **, int);
+int dasd_generic_read_dev_chars(struct dasd_device *, char *, void *, int);
char *dasd_get_sense(struct irb *);
/* externals in dasd_devmap.c */
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index a4c7ffcd998..b21caf177e3 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -127,7 +127,7 @@ dcssblk_assign_free_minor(struct dcssblk_dev_info *dev_info)
found = 0;
// test if minor available
list_for_each_entry(entry, &dcssblk_devices, lh)
- if (minor == MINOR(disk_devt(entry->gd)))
+ if (minor == entry->gd->first_minor)
found++;
if (!found) break; // got unused minor
}
@@ -625,7 +625,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
if (rc)
goto release_gd;
sprintf(dev_info->gd->disk_name, "dcssblk%d",
- MINOR(disk_devt(dev_info->gd)));
+ dev_info->gd->first_minor);
list_add_tail(&dev_info->lh, &dcssblk_devices);
if (!try_module_get(THIS_MODULE)) {
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index d028d2ee83d..ed5396dae58 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -64,7 +64,7 @@ static struct con3270 *condev;
#define CON_UPDATE_ERASE 1 /* Use EWRITEA instead of WRITE. */
#define CON_UPDATE_LIST 2 /* Update lines in tty3270->update. */
#define CON_UPDATE_STATUS 4 /* Update status line. */
-#define CON_UPDATE_ALL 7
+#define CON_UPDATE_ALL 8 /* Recreate screen. */
static void con3270_update(struct con3270 *);
@@ -73,18 +73,10 @@ static void con3270_update(struct con3270 *);
*/
static void con3270_set_timer(struct con3270 *cp, int expires)
{
- if (expires == 0) {
- if (timer_pending(&cp->timer))
- del_timer(&cp->timer);
- return;
- }
- if (timer_pending(&cp->timer) &&
- mod_timer(&cp->timer, jiffies + expires))
- return;
- cp->timer.function = (void (*)(unsigned long)) con3270_update;
- cp->timer.data = (unsigned long) cp;
- cp->timer.expires = jiffies + expires;
- add_timer(&cp->timer);
+ if (expires == 0)
+ del_timer(&cp->timer);
+ else
+ mod_timer(&cp->timer, jiffies + expires);
}
/*
@@ -225,6 +217,12 @@ con3270_update(struct con3270 *cp)
spin_lock_irqsave(&cp->view.lock, flags);
updated = 0;
+ if (cp->update_flags & CON_UPDATE_ALL) {
+ con3270_rebuild_update(cp);
+ con3270_update_status(cp);
+ cp->update_flags = CON_UPDATE_ERASE | CON_UPDATE_LIST |
+ CON_UPDATE_STATUS;
+ }
if (cp->update_flags & CON_UPDATE_ERASE) {
/* Use erase write alternate to initialize display. */
raw3270_request_set_cmd(wrq, TC_EWRITEA);
@@ -302,7 +300,6 @@ con3270_read_tasklet(struct raw3270_request *rrq)
deactivate = 1;
break;
case 0x6d: /* clear: start from scratch. */
- con3270_rebuild_update(cp);
cp->update_flags = CON_UPDATE_ALL;
con3270_set_timer(cp, 1);
break;
@@ -382,30 +379,21 @@ con3270_issue_read(struct con3270 *cp)
static int
con3270_activate(struct raw3270_view *view)
{
- unsigned long flags;
struct con3270 *cp;
cp = (struct con3270 *) view;
- spin_lock_irqsave(&cp->view.lock, flags);
- cp->nr_up = 0;
- con3270_rebuild_update(cp);
- con3270_update_status(cp);
cp->update_flags = CON_UPDATE_ALL;
con3270_set_timer(cp, 1);
- spin_unlock_irqrestore(&cp->view.lock, flags);
return 0;
}
static void
con3270_deactivate(struct raw3270_view *view)
{
- unsigned long flags;
struct con3270 *cp;
cp = (struct con3270 *) view;
- spin_lock_irqsave(&cp->view.lock, flags);
del_timer(&cp->timer);
- spin_unlock_irqrestore(&cp->view.lock, flags);
}
static int
@@ -504,6 +492,7 @@ con3270_write(struct console *co, const char *str, unsigned int count)
con3270_cline_end(cp);
}
/* Setup timer to output current console buffer after 1/10 second */
+ cp->nr_up = 0;
if (cp->view.dev && !timer_pending(&cp->timer))
con3270_set_timer(cp, HZ/10);
spin_unlock_irqrestore(&cp->view.lock,flags);
@@ -624,7 +613,8 @@ con3270_init(void)
INIT_LIST_HEAD(&condev->lines);
INIT_LIST_HEAD(&condev->update);
- init_timer(&condev->timer);
+ setup_timer(&condev->timer, (void (*)(unsigned long)) con3270_update,
+ (unsigned long) condev);
tasklet_init(&condev->readlet,
(void (*)(unsigned long)) con3270_read_tasklet,
(unsigned long) condev->read);
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index a7fe6302c98..38385677c65 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -112,7 +112,7 @@ struct tty3270 {
#define TTY_UPDATE_LIST 2 /* Update lines in tty3270->update. */
#define TTY_UPDATE_INPUT 4 /* Update input line. */
#define TTY_UPDATE_STATUS 8 /* Update status line. */
-#define TTY_UPDATE_ALL 15
+#define TTY_UPDATE_ALL 16 /* Recreate screen. */
static void tty3270_update(struct tty3270 *);
@@ -121,19 +121,10 @@ static void tty3270_update(struct tty3270 *);
*/
static void tty3270_set_timer(struct tty3270 *tp, int expires)
{
- if (expires == 0) {
- if (timer_pending(&tp->timer) && del_timer(&tp->timer))
- raw3270_put_view(&tp->view);
- return;
- }
- if (timer_pending(&tp->timer) &&
- mod_timer(&tp->timer, jiffies + expires))
- return;
- raw3270_get_view(&tp->view);
- tp->timer.function = (void (*)(unsigned long)) tty3270_update;
- tp->timer.data = (unsigned long) tp;
- tp->timer.expires = jiffies + expires;
- add_timer(&tp->timer);
+ if (expires == 0)
+ del_timer(&tp->timer);
+ else
+ mod_timer(&tp->timer, jiffies + expires);
}
/*
@@ -337,7 +328,6 @@ tty3270_write_callback(struct raw3270_request *rq, void *data)
tp = (struct tty3270 *) rq->view;
if (rq->rc != 0) {
/* Write wasn't successfull. Refresh all. */
- tty3270_rebuild_update(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
}
@@ -366,6 +356,12 @@ tty3270_update(struct tty3270 *tp)
spin_lock(&tp->view.lock);
updated = 0;
+ if (tp->update_flags & TTY_UPDATE_ALL) {
+ tty3270_rebuild_update(tp);
+ tty3270_update_status(tp);
+ tp->update_flags = TTY_UPDATE_ERASE | TTY_UPDATE_LIST |
+ TTY_UPDATE_INPUT | TTY_UPDATE_STATUS;
+ }
if (tp->update_flags & TTY_UPDATE_ERASE) {
/* Use erase write alternate to erase display. */
raw3270_request_set_cmd(wrq, TC_EWRITEA);
@@ -425,7 +421,6 @@ tty3270_update(struct tty3270 *tp)
xchg(&tp->write, wrq);
}
spin_unlock(&tp->view.lock);
- raw3270_put_view(&tp->view);
}
/*
@@ -570,7 +565,6 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
tty3270_set_timer(tp, 1);
} else if (tp->input->string[0] == 0x6d) {
/* Display has been cleared. Redraw. */
- tty3270_rebuild_update(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
}
@@ -641,22 +635,20 @@ static int
tty3270_activate(struct raw3270_view *view)
{
struct tty3270 *tp;
- unsigned long flags;
tp = (struct tty3270 *) view;
- spin_lock_irqsave(&tp->view.lock, flags);
- tp->nr_up = 0;
- tty3270_rebuild_update(tp);
- tty3270_update_status(tp);
tp->update_flags = TTY_UPDATE_ALL;
tty3270_set_timer(tp, 1);
- spin_unlock_irqrestore(&tp->view.lock, flags);
return 0;
}
static void
tty3270_deactivate(struct raw3270_view *view)
{
+ struct tty3270 *tp;
+
+ tp = (struct tty3270 *) view;
+ del_timer(&tp->timer);
}
static int
@@ -743,6 +735,7 @@ tty3270_free_view(struct tty3270 *tp)
{
int pages;
+ del_timer_sync(&tp->timer);
kbd_free(tp->kbd);
raw3270_request_free(tp->kreset);
raw3270_request_free(tp->read);
@@ -889,7 +882,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
INIT_LIST_HEAD(&tp->update);
INIT_LIST_HEAD(&tp->rcl_lines);
tp->rcl_max = 20;
- init_timer(&tp->timer);
+ 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);
@@ -1754,14 +1748,6 @@ static const struct tty_operations tty3270_ops = {
.set_termios = tty3270_set_termios
};
-static void tty3270_notifier(int index, int active)
-{
- if (active)
- tty_register_device(tty3270_driver, index, NULL);
- else
- tty_unregister_device(tty3270_driver, index);
-}
-
/*
* 3270 tty registration code called from tty_init().
* Most kernel services (incl. kmalloc) are available at this poimt.
@@ -1796,12 +1782,6 @@ static int __init tty3270_init(void)
return ret;
}
tty3270_driver = driver;
- ret = raw3270_register_notifier(tty3270_notifier);
- if (ret) {
- put_tty_driver(driver);
- return ret;
-
- }
return 0;
}
@@ -1810,7 +1790,6 @@ 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/cio/cio.c b/drivers/s390/cio/cio.c
index 2aebb982304..5ec7789bd9d 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -12,6 +12,7 @@
#define KMSG_COMPONENT "cio"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/ftrace.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -28,7 +29,7 @@
#include <asm/chpid.h>
#include <asm/airq.h>
#include <asm/isc.h>
-#include <asm/cpu.h>
+#include <asm/cputime.h>
#include <asm/fcx.h>
#include <asm/nmi.h>
#include <asm/crw.h>
@@ -626,8 +627,7 @@ out:
* handlers).
*
*/
-void
-do_IRQ (struct pt_regs *regs)
+void __irq_entry do_IRQ(struct pt_regs *regs)
{
struct tpi_info *tpi_info;
struct subchannel *sch;
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 151754d5474..bf0a24af39a 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -114,7 +114,7 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
struct subchannel *sch;
int ret;
- if (!cdev)
+ if (!cdev || !cdev->dev.parent)
return -ENODEV;
if (cdev->private->state == DEV_STATE_NOT_OPER)
return -ENODEV;
@@ -122,8 +122,6 @@ int ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
cdev->private->state != DEV_STATE_W4SENSE)
return -EINVAL;
sch = to_subchannel(cdev->dev.parent);
- if (!sch)
- return -ENODEV;
ret = cio_clear(sch);
if (ret == 0)
cdev->private->intparm = intparm;
@@ -161,11 +159,9 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
struct subchannel *sch;
int ret;
- if (!cdev)
+ if (!cdev || !cdev->dev.parent)
return -ENODEV;
sch = to_subchannel(cdev->dev.parent);
- if (!sch)
- return -ENODEV;
if (cdev->private->state == DEV_STATE_NOT_OPER)
return -ENODEV;
if (cdev->private->state == DEV_STATE_VERIFY ||
@@ -339,7 +335,7 @@ int ccw_device_halt(struct ccw_device *cdev, unsigned long intparm)
struct subchannel *sch;
int ret;
- if (!cdev)
+ if (!cdev || !cdev->dev.parent)
return -ENODEV;
if (cdev->private->state == DEV_STATE_NOT_OPER)
return -ENODEV;
@@ -347,8 +343,6 @@ int ccw_device_halt(struct ccw_device *cdev, unsigned long intparm)
cdev->private->state != DEV_STATE_W4SENSE)
return -EINVAL;
sch = to_subchannel(cdev->dev.parent);
- if (!sch)
- return -ENODEV;
ret = cio_halt(sch);
if (ret == 0)
cdev->private->intparm = intparm;
@@ -372,11 +366,9 @@ int ccw_device_resume(struct ccw_device *cdev)
{
struct subchannel *sch;
- if (!cdev)
+ if (!cdev || !cdev->dev.parent)
return -ENODEV;
sch = to_subchannel(cdev->dev.parent);
- if (!sch)
- return -ENODEV;
if (cdev->private->state == DEV_STATE_NOT_OPER)
return -ENODEV;
if (cdev->private->state != DEV_STATE_ONLINE ||
@@ -471,11 +463,11 @@ __u8 ccw_device_get_path_mask(struct ccw_device *cdev)
{
struct subchannel *sch;
- sch = to_subchannel(cdev->dev.parent);
- if (!sch)
+ if (!cdev->dev.parent)
return 0;
- else
- return sch->lpm;
+
+ sch = to_subchannel(cdev->dev.parent);
+ return sch->lpm;
}
/*
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index accd957454e..d79cf5bf0e6 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -881,42 +881,26 @@ no_handler:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
}
-static int qdio_establish_check_errors(struct ccw_device *cdev, int cstat,
- int dstat)
+static void qdio_establish_handle_irq(struct ccw_device *cdev, int cstat,
+ int dstat)
{
struct qdio_irq *irq_ptr = cdev->private->qdio_data;
- if (cstat || (dstat & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END))) {
- DBF_ERROR("EQ:ck con");
- goto error;
- }
+ DBF_DEV_EVENT(DBF_INFO, irq_ptr, "qest irq");
- if (!(dstat & DEV_STAT_DEV_END)) {
- DBF_ERROR("EQ:no dev");
+ if (cstat)
goto error;
- }
-
- if (dstat & ~(DEV_STAT_CHN_END | DEV_STAT_DEV_END)) {
- DBF_ERROR("EQ: bad io");
+ if (dstat & ~(DEV_STAT_DEV_END | DEV_STAT_CHN_END))
goto error;
- }
- return 0;
+ if (!(dstat & DEV_STAT_DEV_END))
+ goto error;
+ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ESTABLISHED);
+ return;
+
error:
DBF_ERROR("%4x EQ:error", irq_ptr->schid.sch_no);
DBF_ERROR("ds: %2x cs:%2x", dstat, cstat);
-
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
- return 1;
-}
-
-static void qdio_establish_handle_irq(struct ccw_device *cdev, int cstat,
- int dstat)
-{
- struct qdio_irq *irq_ptr = cdev->private->qdio_data;
-
- DBF_DEV_EVENT(DBF_INFO, irq_ptr, "qest irq");
- if (!qdio_establish_check_errors(cdev, cstat, dstat))
- qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ESTABLISHED);
}
/* qdio interrupt handler */
@@ -946,7 +930,6 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
}
}
qdio_irq_check_sense(irq_ptr, irb);
-
cstat = irb->scsw.cmd.cstat;
dstat = irb->scsw.cmd.dstat;
@@ -954,22 +937,19 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
case QDIO_IRQ_STATE_INACTIVE:
qdio_establish_handle_irq(cdev, cstat, dstat);
break;
-
case QDIO_IRQ_STATE_CLEANUP:
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
break;
-
case QDIO_IRQ_STATE_ESTABLISHED:
case QDIO_IRQ_STATE_ACTIVE:
if (cstat & SCHN_STAT_PCI) {
qdio_int_handler_pci(irq_ptr);
return;
}
- if ((cstat & ~SCHN_STAT_PCI) || dstat) {
+ if (cstat || dstat)
qdio_handle_activate_check(cdev, intparm, cstat,
dstat);
- break;
- }
+ break;
default:
WARN_ON(1);
}
@@ -1514,7 +1494,7 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
if ((bufnr > QDIO_MAX_BUFFERS_PER_Q) ||
(count > QDIO_MAX_BUFFERS_PER_Q) ||
- (q_nr > QDIO_MAX_QUEUES_PER_IRQ))
+ (q_nr >= QDIO_MAX_QUEUES_PER_IRQ))
return -EINVAL;
if (!count)
diff --git a/drivers/s390/cio/qdio_perf.c b/drivers/s390/cio/qdio_perf.c
index 136d0f0b1e9..eff943923c6 100644
--- a/drivers/s390/cio/qdio_perf.c
+++ b/drivers/s390/cio/qdio_perf.c
@@ -25,18 +25,6 @@ struct qdio_perf_stats perf_stats;
static struct proc_dir_entry *qdio_perf_pde;
#endif
-inline void qdio_perf_stat_inc(atomic_long_t *count)
-{
- if (qdio_performance_stats)
- atomic_long_inc(count);
-}
-
-inline void qdio_perf_stat_dec(atomic_long_t *count)
-{
- if (qdio_performance_stats)
- atomic_long_dec(count);
-}
-
/*
* procfs functions
*/
diff --git a/drivers/s390/cio/qdio_perf.h b/drivers/s390/cio/qdio_perf.h
index 7821ac4fa51..ff4504ce1e3 100644
--- a/drivers/s390/cio/qdio_perf.h
+++ b/drivers/s390/cio/qdio_perf.h
@@ -9,7 +9,6 @@
#define QDIO_PERF_H
#include <linux/types.h>
-#include <linux/device.h>
#include <asm/atomic.h>
struct qdio_perf_stats {
@@ -50,10 +49,13 @@ struct qdio_perf_stats {
extern struct qdio_perf_stats perf_stats;
extern int qdio_performance_stats;
+static inline void qdio_perf_stat_inc(atomic_long_t *count)
+{
+ if (qdio_performance_stats)
+ atomic_long_inc(count);
+}
+
int qdio_setup_perf_stats(void);
void qdio_remove_perf_stats(void);
-extern void qdio_perf_stat_inc(atomic_long_t *count);
-extern void qdio_perf_stat_dec(atomic_long_t *count);
-
#endif
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index cbc8566fab7..e38e5d306fa 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -173,8 +173,9 @@ static void kvm_notify(struct virtqueue *vq)
* this device and sets it up.
*/
static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
- unsigned index,
- void (*callback)(struct virtqueue *vq))
+ unsigned index,
+ void (*callback)(struct virtqueue *vq),
+ const char *name)
{
struct kvm_device *kdev = to_kvmdev(vdev);
struct kvm_vqconfig *config;
@@ -194,7 +195,7 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
vq = vring_new_virtqueue(config->num, KVM_S390_VIRTIO_RING_ALIGN,
vdev, (void *) config->address,
- kvm_notify, callback);
+ kvm_notify, callback, name);
if (!vq) {
err = -ENOMEM;
goto unmap;
@@ -226,6 +227,38 @@ static void kvm_del_vq(struct virtqueue *vq)
KVM_S390_VIRTIO_RING_ALIGN));
}
+static void kvm_del_vqs(struct virtio_device *vdev)
+{
+ struct virtqueue *vq, *n;
+
+ list_for_each_entry_safe(vq, n, &vdev->vqs, list)
+ kvm_del_vq(vq);
+}
+
+static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+ struct virtqueue *vqs[],
+ vq_callback_t *callbacks[],
+ const char *names[])
+{
+ struct kvm_device *kdev = to_kvmdev(vdev);
+ int i;
+
+ /* We must have this many virtqueues. */
+ if (nvqs > kdev->desc->num_vq)
+ return -ENOENT;
+
+ for (i = 0; i < nvqs; ++i) {
+ vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i]);
+ if (IS_ERR(vqs[i]))
+ goto error;
+ }
+ return 0;
+
+error:
+ kvm_del_vqs(vdev);
+ return PTR_ERR(vqs[i]);
+}
+
/*
* The config ops structure as defined by virtio config
*/
@@ -237,8 +270,8 @@ static struct virtio_config_ops kvm_vq_configspace_ops = {
.get_status = kvm_get_status,
.set_status = kvm_set_status,
.reset = kvm_reset,
- .find_vq = kvm_find_vq,
- .del_vq = kvm_del_vq,
+ .find_vqs = kvm_find_vqs,
+ .del_vqs = kvm_del_vqs,
};
/*
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index a7745c82b4a..cb909a5b504 100644
--- a/drivers/s390/net/Kconfig
+++ b/drivers/s390/net/Kconfig
@@ -8,7 +8,7 @@ config LCS
Select this option if you want to use LCS networking on IBM System z.
This device driver supports Token Ring (IEEE 802.5),
FDDI (IEEE 802.7) and Ethernet.
- To compile as a module, choose M. The module name is lcs.ko.
+ To compile as a module, choose M. The module name is lcs.
If you do not know what it is, it's safe to choose Y.
config CTCM
@@ -21,7 +21,7 @@ config CTCM
It also supports virtual CTCs when running under VM.
This driver also supports channel-to-channel MPC SNA devices.
MPC is an SNA protocol device used by Communication Server for Linux.
- To compile as a module, choose M. The module name is ctcm.ko.
+ To compile as a module, choose M. The module name is ctcm.
To compile into the kernel, choose Y.
If you do not need any channel-to-channel connection, choose N.
@@ -34,7 +34,7 @@ config NETIUCV
link between VM guests. Using ifconfig a point-to-point connection
can be established to the Linux on IBM System z
running on the other VM guest. To compile as a module, choose M.
- The module name is netiucv.ko. If unsure, choose Y.
+ The module name is netiucv. If unsure, choose Y.
config SMSGIUCV
tristate "IUCV special message support (VM only)"
@@ -50,7 +50,7 @@ config CLAW
This driver supports channel attached CLAW devices.
CLAW is Common Link Access for Workstation. Common devices
that use CLAW are RS/6000s, Cisco Routers (CIP) and 3172 devices.
- To compile as a module, choose M. The module name is claw.ko.
+ To compile as a module, choose M. The module name is claw.
To compile into the kernel, choose Y.
config QETH
@@ -65,14 +65,14 @@ config QETH
<http://www.ibm.com/developerworks/linux/linux390>
To compile this driver as a module, choose M.
- The module name is qeth.ko.
+ The module name is qeth.
config QETH_L2
tristate "qeth layer 2 device support"
depends on QETH
help
Select this option to be able to run qeth devices in layer 2 mode.
- To compile as a module, choose M. The module name is qeth_l2.ko.
+ To compile as a module, choose M. The module name is qeth_l2.
If unsure, choose y.
config QETH_L3
@@ -80,7 +80,7 @@ config QETH_L3
depends on QETH
help
Select this option to be able to run qeth devices in layer 3 mode.
- To compile as a module choose M. The module name is qeth_l3.ko.
+ To compile as a module choose M. The module name is qeth_l3.
If unsure, choose Y.
config QETH_IPV6
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 733fe3bf628..b2fe5cdbcae 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -11,6 +11,24 @@
#include "zfcp_ext.h"
+#define ZFCP_MODEL_PRIV 0x4
+
+static struct ccw_device_id zfcp_ccw_device_id[] = {
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
+ { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, ZFCP_MODEL_PRIV) },
+ {},
+};
+MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
+
+/**
+ * zfcp_ccw_priv_sch - check if subchannel is privileged
+ * @adapter: Adapter/Subchannel to check
+ */
+int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
+{
+ return adapter->ccw_device->id.dev_model == ZFCP_MODEL_PRIV;
+}
+
/**
* zfcp_ccw_probe - probe function of zfcp driver
* @ccw_device: pointer to belonging ccw device
@@ -176,8 +194,8 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
"ccnoti4", NULL);
break;
case CIO_BOXED:
- dev_warn(&adapter->ccw_device->dev,
- "The ccw device did not respond in time.\n");
+ dev_warn(&adapter->ccw_device->dev, "The FCP device "
+ "did not respond within the specified time\n");
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti5", NULL);
break;
}
@@ -199,14 +217,6 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
up(&zfcp_data.config_sema);
}
-static struct ccw_device_id zfcp_ccw_device_id[] = {
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
- { CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x4) }, /* priv. */
- {},
-};
-
-MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
-
static struct ccw_driver zfcp_ccw_driver = {
.owner = THIS_MODULE,
.name = "zfcp",
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 0a1a5dd8d01..b99b87ce5a3 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -163,7 +163,7 @@ void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
}
response->fsf_command = fsf_req->fsf_command;
- response->fsf_reqid = (unsigned long)fsf_req;
+ response->fsf_reqid = fsf_req->req_id;
response->fsf_seqno = fsf_req->seq_no;
response->fsf_issued = fsf_req->issued;
response->fsf_prot_status = qtcb->prefix.prot_status;
@@ -737,7 +737,7 @@ void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
- r->fsf_reqid = (unsigned long)fsf_req;
+ r->fsf_reqid = fsf_req->req_id;
r->fsf_seqno = fsf_req->seq_no;
r->s_id = fc_host_port_id(adapter->scsi_host);
r->d_id = wka_port->d_id;
@@ -773,7 +773,7 @@ void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
memset(r, 0, sizeof(*r));
strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
- r->fsf_reqid = (unsigned long)fsf_req;
+ r->fsf_reqid = fsf_req->req_id;
r->fsf_seqno = fsf_req->seq_no;
r->s_id = wka_port->d_id;
r->d_id = fc_host_port_id(adapter->scsi_host);
@@ -803,7 +803,7 @@ static void zfcp_san_dbf_event_els(const char *tag, int level,
spin_lock_irqsave(&adapter->san_dbf_lock, flags);
memset(rec, 0, sizeof(*rec));
strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
- rec->fsf_reqid = (unsigned long)fsf_req;
+ rec->fsf_reqid = fsf_req->req_id;
rec->fsf_seqno = fsf_req->seq_no;
rec->s_id = s_id;
rec->d_id = d_id;
@@ -965,7 +965,7 @@ static void zfcp_scsi_dbf_event(const char *tag, const char *tag2, int level,
ZFCP_DBF_SCSI_FCP_SNS_INFO);
}
- rec->fsf_reqid = (unsigned long)fsf_req;
+ rec->fsf_reqid = fsf_req->req_id;
rec->fsf_seqno = fsf_req->seq_no;
rec->fsf_issued = fsf_req->issued;
}
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 4c362a9069f..2074d45dbf6 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -47,13 +47,6 @@
/********************* CIO/QDIO SPECIFIC DEFINES *****************************/
-/* Adapter Identification Parameters */
-#define ZFCP_CONTROL_UNIT_TYPE 0x1731
-#define ZFCP_CONTROL_UNIT_MODEL 0x03
-#define ZFCP_DEVICE_TYPE 0x1732
-#define ZFCP_DEVICE_MODEL 0x03
-#define ZFCP_DEVICE_MODEL_PRIV 0x04
-
/* DMQ bug workaround: don't use last SBALE */
#define ZFCP_MAX_SBALES_PER_SBAL (QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index fdc9b4352a6..e50ea465bc2 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -880,6 +880,7 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
zfcp_port_put(port);
return ZFCP_ERP_CONTINUES;
}
+ /* fall through */
case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
if (!port->d_id)
return ZFCP_ERP_FAILED;
@@ -894,8 +895,13 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
act->step = ZFCP_ERP_STEP_PORT_CLOSING;
return ZFCP_ERP_CONTINUES;
}
- /* fall through otherwise */
}
+ if (port->d_id && !(p_status & ZFCP_STATUS_COMMON_NOESC)) {
+ port->d_id = 0;
+ _zfcp_erp_port_reopen(port, 0, "erpsoc1", NULL);
+ return ZFCP_ERP_EXIT;
+ }
+ /* fall through otherwise */
}
return ZFCP_ERP_FAILED;
}
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index 2e31b536548..120a9a1c81f 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -27,6 +27,7 @@ extern int zfcp_sg_setup_table(struct scatterlist *, int);
/* zfcp_ccw.c */
extern int zfcp_ccw_register(void);
+extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
extern struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
/* zfcp_cfdc.c */
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 19ae0842047..35493a82d2a 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -116,7 +116,7 @@ static void zfcp_wka_port_put(struct zfcp_wka_port *wka_port)
{
if (atomic_dec_return(&wka_port->refcount) != 0)
return;
- /* wait 10 miliseconds, other reqs might pop in */
+ /* wait 10 milliseconds, other reqs might pop in */
schedule_delayed_work(&wka_port->work, HZ / 100);
}
@@ -150,9 +150,14 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
struct zfcp_port *port;
read_lock_irqsave(&zfcp_data.config_lock, flags);
- list_for_each_entry(port, &fsf_req->adapter->port_list_head, list)
+ list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
if ((port->d_id & range) == (elem->nport_did & range))
zfcp_test_link(port);
+ if (!port->d_id)
+ zfcp_erp_port_reopen(port,
+ ZFCP_STATUS_COMMON_ERP_FAILED,
+ "fcrscn1", NULL);
+ }
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 74dee32afba..e6dae3744e7 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -526,6 +526,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
break;
case FSF_TOPO_AL:
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
+ /* fall through */
default:
dev_err(&adapter->ccw_device->dev,
"Unknown or unsupported arbitrated loop "
@@ -897,6 +898,7 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
switch (fsq->word[0]) {
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
zfcp_test_link(unit->port);
+ /* fall through */
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
@@ -993,6 +995,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
break;
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
+ /* fall through */
case FSF_GENERIC_COMMAND_REJECTED:
case FSF_PAYLOAD_SIZE_MISMATCH:
case FSF_REQUEST_SIZE_TOO_LARGE:
@@ -1399,7 +1402,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
struct fsf_plogi *plogi;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
- return;
+ goto out;
switch (header->fsf_status) {
case FSF_PORT_ALREADY_OPEN:
@@ -1461,6 +1464,9 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
}
+
+out:
+ zfcp_port_put(port);
}
/**
@@ -1473,6 +1479,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
struct qdio_buffer_element *sbale;
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_fsf_req *req;
+ struct zfcp_port *port = erp_action->port;
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
@@ -1493,16 +1500,18 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
req->handler = zfcp_fsf_open_port_handler;
- req->qtcb->bottom.support.d_id = erp_action->port->d_id;
- req->data = erp_action->port;
+ req->qtcb->bottom.support.d_id = port->d_id;
+ req->data = port;
req->erp_action = erp_action;
erp_action->fsf_req = req;
+ zfcp_port_get(port);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
if (retval) {
zfcp_fsf_req_free(req);
erp_action->fsf_req = NULL;
+ zfcp_port_put(port);
}
out:
spin_unlock_bh(&adapter->req_q_lock);
@@ -1590,8 +1599,10 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
dev_warn(&req->adapter->ccw_device->dev,
"Opening WKA port 0x%x failed\n", wka_port->d_id);
+ /* fall through */
case FSF_ADAPTER_STATUS_AVAILABLE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+ /* fall through */
case FSF_ACCESS_DENIED:
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
break;
@@ -1876,7 +1887,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) &&
(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) &&
- (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) {
+ !zfcp_ccw_priv_sch(adapter)) {
exclusive = (bottom->lun_access_info &
FSF_UNIT_ACCESS_EXCLUSIVE);
readwrite = (bottom->lun_access_info &
@@ -2314,7 +2325,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
{
struct zfcp_fsf_req *req;
struct fcp_cmnd_iu *fcp_cmnd_iu;
- unsigned int sbtype;
+ unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
int real_bytes, retval = -EIO;
struct zfcp_adapter *adapter = unit->port->adapter;
@@ -2356,11 +2367,9 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
switch (scsi_cmnd->sc_data_direction) {
case DMA_NONE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
- sbtype = SBAL_FLAGS0_TYPE_READ;
break;
case DMA_FROM_DEVICE:
req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ;
- sbtype = SBAL_FLAGS0_TYPE_READ;
fcp_cmnd_iu->rddata = 1;
break;
case DMA_TO_DEVICE:
@@ -2369,8 +2378,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
fcp_cmnd_iu->wddata = 1;
break;
case DMA_BIDIRECTIONAL:
- default:
- retval = -EIO;
goto failed_scsi_cmnd;
}
@@ -2394,9 +2401,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
scsi_sglist(scsi_cmnd),
FSF_MAX_SBALS_PER_REQ);
if (unlikely(real_bytes < 0)) {
- if (req->sbal_number < FSF_MAX_SBALS_PER_REQ)
- retval = -EIO;
- else {
+ if (req->sbal_number >= FSF_MAX_SBALS_PER_REQ) {
dev_err(&adapter->ccw_device->dev,
"Oversize data package, unit 0x%016Lx "
"on port 0x%016Lx closed\n",
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index e8fbeaeb5fb..7d0da230eb6 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -12,6 +12,10 @@
#include "zfcp_ext.h"
#include <asm/atomic.h>
+static unsigned int default_depth = 32;
+module_param_named(queue_depth, default_depth, uint, 0600);
+MODULE_PARM_DESC(queue_depth, "Default queue depth for new SCSI devices");
+
/* Find start of Sense Information in FCP response unit*/
char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
{
@@ -24,6 +28,12 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
return fcp_sns_info_ptr;
}
+static int zfcp_scsi_change_queue_depth(struct scsi_device *sdev, int depth)
+{
+ scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
+ return sdev->queue_depth;
+}
+
static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
@@ -34,7 +44,7 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
static int zfcp_scsi_slave_configure(struct scsi_device *sdp)
{
if (sdp->tagged_supported)
- scsi_adjust_queue_depth(sdp, MSG_SIMPLE_TAG, 32);
+ scsi_adjust_queue_depth(sdp, MSG_SIMPLE_TAG, default_depth);
else
scsi_adjust_queue_depth(sdp, 0, 1);
return 0;
@@ -647,6 +657,7 @@ struct zfcp_data zfcp_data = {
.name = "zfcp",
.module = THIS_MODULE,
.proc_name = "zfcp",
+ .change_queue_depth = zfcp_scsi_change_queue_depth,
.slave_alloc = zfcp_scsi_slave_alloc,
.slave_configure = zfcp_scsi_slave_configure,
.slave_destroy = zfcp_scsi_slave_destroy,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-16 13:56:05 +0000