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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-21 13:40:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-21 13:40:06 -0800
commitdf24212a493afda0d4de42176bea10d45825e9a0 (patch)
tree72d191a100a849cf3d030e6409c52429d8537131 /drivers/s390
parent3e10585335b7967326ca7b4118cada0d2d00a2ab (diff)
parent2223318c2862edc7f5b282939b850b19fc934ec4 (diff)
Merge tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik: - Convert to using the generic entry infrastructure. - Add vdso time namespace support. - Switch s390 and alpha to 64-bit ino_t. As discussed at https://lore.kernel.org/linux-mm/YCV7QiyoweJwvN+m@osiris/ - Get rid of expensive stck (store clock) usages where possible. Utilize cpu alternatives to patch stckf when supported. - Make tod_clock usage less error prone by converting it to a union and rework code which is using it. - Machine check handler fixes and cleanups. - Drop couple of minor inline asm optimizations to fix clang build. - Default configs changes notably to make libvirt happy. - Various changes to rework and improve qdio code. - Other small various fixes and improvements all over the code. * tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (68 commits) s390/qdio: remove 'merge_pending' mechanism s390/qdio: improve handling of PENDING buffers for QEBSM devices s390/qdio: rework q->qdio_error indication s390/qdio: inline qdio_kick_handler() s390/time: remove get_tod_clock_ext() s390/crypto: use store_tod_clock_ext() s390/hypfs: use store_tod_clock_ext() s390/debug: use union tod_clock s390/kvm: use union tod_clock s390/vdso: use union tod_clock s390/time: convert tod_clock_base to union s390/time: introduce new store_tod_clock_ext() s390/time: rename store_tod_clock_ext() and use union tod_clock s390/time: introduce union tod_clock s390,alpha: switch to 64-bit ino_t s390: split cleanup_sie s390: use r13 in cleanup_sie as temp register s390: fix kernel asce loading when sie is interrupted s390: add stack for machine check handler s390: use WRITE_ONCE when re-allocating async stack ...
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/tape_3590.c4
-rw-r--r--drivers/s390/cio/css.c20
-rw-r--r--drivers/s390/cio/device.c39
-rw-r--r--drivers/s390/cio/qdio.h25
-rw-r--r--drivers/s390/cio/qdio_debug.c9
-rw-r--r--drivers/s390/cio/qdio_main.c209
-rw-r--r--drivers/s390/cio/qdio_setup.c19
-rw-r--r--drivers/s390/cio/qdio_thinint.c70
-rw-r--r--drivers/s390/crypto/zcrypt_api.c14
-rw-r--r--drivers/s390/crypto/zcrypt_ccamisc.c15
-rw-r--r--drivers/s390/net/qeth_core_main.c7
11 files changed, 154 insertions, 277 deletions
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index ecf8c5006a0e..0d484fe43d7e 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -761,7 +761,7 @@ tape_3590_done(struct tape_device *device, struct tape_request *request)
* This function is called, when error recovery was successful
*/
static inline int
-tape_3590_erp_succeded(struct tape_device *device, struct tape_request *request)
+tape_3590_erp_succeeded(struct tape_device *device, struct tape_request *request)
{
DBF_EVENT(3, "Error Recovery successful for %s\n",
tape_op_verbose[request->op]);
@@ -831,7 +831,7 @@ tape_3590_erp_basic(struct tape_device *device, struct tape_request *request,
case SENSE_BRA_PER:
return tape_3590_erp_failed(device, request, irb, rc);
case SENSE_BRA_CONT:
- return tape_3590_erp_succeded(device, request);
+ return tape_3590_erp_succeeded(device, request);
case SENSE_BRA_RE:
return tape_3590_erp_retry(device, request, irb);
case SENSE_BRA_DRE:
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 94c6470de635..253ab4e7a415 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -225,18 +225,23 @@ struct subchannel *css_alloc_subchannel(struct subchannel_id schid,
INIT_WORK(&sch->todo_work, css_sch_todo);
sch->dev.release = &css_subchannel_release;
+ sch->dev.dma_mask = &sch->dma_mask;
device_initialize(&sch->dev);
/*
- * The physical addresses of some the dma structures that can
+ * The physical addresses for some of the dma structures that can
* belong to a subchannel need to fit 31 bit width (e.g. ccw).
*/
- sch->dev.coherent_dma_mask = DMA_BIT_MASK(31);
+ ret = dma_set_coherent_mask(&sch->dev, DMA_BIT_MASK(31));
+ if (ret)
+ goto err;
/*
* But we don't have such restrictions imposed on the stuff that
* is handled by the streaming API.
*/
- sch->dma_mask = DMA_BIT_MASK(64);
- sch->dev.dma_mask = &sch->dma_mask;
+ ret = dma_set_mask(&sch->dev, DMA_BIT_MASK(64));
+ if (ret)
+ goto err;
+
return sch;
err:
@@ -970,8 +975,11 @@ static int __init setup_css(int nr)
* css->device as the device argument with the DMA API)
* and are fine with 64 bit addresses.
*/
- css->device.coherent_dma_mask = DMA_BIT_MASK(64);
- css->device.dma_mask = &css->device.coherent_dma_mask;
+ ret = dma_coerce_mask_and_coherent(&css->device, DMA_BIT_MASK(64));
+ if (ret) {
+ kfree(css);
+ goto out_err;
+ }
mutex_init(&css->mutex);
ret = chsc_get_cssid_iid(nr, &css->cssid, &css->iid);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 4b0a7cbb2096..3f026021e95e 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -621,14 +621,6 @@ static const struct attribute_group *ccwdev_attr_groups[] = {
NULL,
};
-static int ccw_device_add(struct ccw_device *cdev)
-{
- struct device *dev = &cdev->dev;
-
- dev->bus = &ccw_bus_type;
- return device_add(dev);
-}
-
static int match_dev_id(struct device *dev, const void *data)
{
struct ccw_device *cdev = to_ccwdev(dev);
@@ -687,33 +679,47 @@ static struct ccw_device * io_subchannel_allocate_dev(struct subchannel *sch)
{
struct ccw_device *cdev;
struct gen_pool *dma_pool;
+ int ret;
cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
- if (!cdev)
+ if (!cdev) {
+ ret = -ENOMEM;
goto err_cdev;
+ }
cdev->private = kzalloc(sizeof(struct ccw_device_private),
GFP_KERNEL | GFP_DMA);
- if (!cdev->private)
+ if (!cdev->private) {
+ ret = -ENOMEM;
goto err_priv;
- cdev->dev.coherent_dma_mask = sch->dev.coherent_dma_mask;
+ }
+
cdev->dev.dma_mask = sch->dev.dma_mask;
+ ret = dma_set_coherent_mask(&cdev->dev, sch->dev.coherent_dma_mask);
+ if (ret)
+ goto err_coherent_mask;
+
dma_pool = cio_gp_dma_create(&cdev->dev, 1);
- if (!dma_pool)
+ if (!dma_pool) {
+ ret = -ENOMEM;
goto err_dma_pool;
+ }
cdev->private->dma_pool = dma_pool;
cdev->private->dma_area = cio_gp_dma_zalloc(dma_pool, &cdev->dev,
sizeof(*cdev->private->dma_area));
- if (!cdev->private->dma_area)
+ if (!cdev->private->dma_area) {
+ ret = -ENOMEM;
goto err_dma_area;
+ }
return cdev;
err_dma_area:
cio_gp_dma_destroy(dma_pool, &cdev->dev);
err_dma_pool:
+err_coherent_mask:
kfree(cdev->private);
err_priv:
kfree(cdev);
err_cdev:
- return ERR_PTR(-ENOMEM);
+ return ERR_PTR(ret);
}
static void ccw_device_todo(struct work_struct *work);
@@ -739,6 +745,7 @@ static int io_subchannel_initialize_dev(struct subchannel *sch,
cdev->ccwlock = sch->lock;
cdev->dev.parent = &sch->dev;
cdev->dev.release = ccw_device_release;
+ cdev->dev.bus = &ccw_bus_type;
cdev->dev.groups = ccwdev_attr_groups;
/* Do first half of device_register. */
device_initialize(&cdev->dev);
@@ -840,7 +847,7 @@ static void io_subchannel_register(struct ccw_device *cdev)
kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
}
/* make it known to the system */
- ret = ccw_device_add(cdev);
+ ret = device_add(&cdev->dev);
if (ret) {
CIO_MSG_EVENT(0, "Could not register ccw dev 0.%x.%04x: %d\n",
cdev->private->dev_id.ssid,
@@ -1052,7 +1059,7 @@ static int io_subchannel_probe(struct subchannel *sch)
kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
}
cdev = sch_get_cdev(sch);
- rc = ccw_device_add(cdev);
+ rc = device_add(&cdev->dev);
if (rc) {
/* Release online reference. */
put_device(&cdev->dev);
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index cd2df4ff8e0e..34bf2f197c71 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -139,9 +139,6 @@ struct qdio_dev_perf_stat {
unsigned int qdio_int;
unsigned int pci_request_int;
- unsigned int tasklet_inbound;
- unsigned int tasklet_inbound_resched;
- unsigned int tasklet_inbound_resched2;
unsigned int tasklet_outbound;
unsigned int siga_read;
@@ -149,7 +146,6 @@ struct qdio_dev_perf_stat {
unsigned int siga_sync;
unsigned int inbound_call;
- unsigned int inbound_handler;
unsigned int stop_polling;
unsigned int inbound_queue_full;
unsigned int outbound_call;
@@ -193,6 +189,8 @@ struct qdio_output_q {
struct qdio_outbuf_state *sbal_state;
/* timer to check for more outbound work */
struct timer_list timer;
+ /* tasklet to check for completions */
+ struct tasklet_struct tasklet;
};
/*
@@ -216,13 +214,9 @@ struct qdio_q {
/* number of buffers in use by the adapter */
atomic_t nr_buf_used;
- /* error condition during a data transfer */
- unsigned int qdio_error;
-
/* last scan of the queue */
u64 timestamp;
- struct tasklet_struct tasklet;
struct qdio_queue_perf_stat q_stats;
struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q] ____cacheline_aligned;
@@ -254,6 +248,7 @@ struct qdio_irq {
struct ccw_device *cdev;
struct list_head entry; /* list of thinint devices */
struct dentry *debugfs_dev;
+ u64 last_data_irq_time;
unsigned long int_parm;
struct subchannel_id schid;
@@ -324,6 +319,14 @@ static inline int multicast_outbound(struct qdio_q *q)
(q->nr == q->irq_ptr->nr_output_qs - 1);
}
+static inline void qdio_deliver_irq(struct qdio_irq *irq)
+{
+ if (!test_and_set_bit(QDIO_IRQ_DISABLED, &irq->poll_state))
+ irq->irq_poll(irq->cdev, irq->int_parm);
+ else
+ QDIO_PERF_STAT_INC(irq, int_discarded);
+}
+
#define pci_out_supported(irq) ((irq)->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED)
#define is_qebsm(q) (q->irq_ptr->sch_token != 0)
@@ -357,16 +360,12 @@ extern u64 last_ai_time;
/* prototypes for thin interrupt */
int qdio_establish_thinint(struct qdio_irq *irq_ptr);
void qdio_shutdown_thinint(struct qdio_irq *irq_ptr);
-void tiqdio_add_device(struct qdio_irq *irq_ptr);
-void tiqdio_remove_device(struct qdio_irq *irq_ptr);
-void tiqdio_inbound_processing(unsigned long q);
int qdio_thinint_init(void);
void qdio_thinint_exit(void);
int test_nonshared_ind(struct qdio_irq *);
/* prototypes for setup */
-void qdio_inbound_processing(unsigned long data);
-void qdio_outbound_processing(unsigned long data);
+void qdio_outbound_tasklet(struct tasklet_struct *t);
void qdio_outbound_timer(struct timer_list *t);
void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
struct irb *irb);
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index 863d17c802ca..00384f58f218 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -105,8 +105,9 @@ static int qstat_show(struct seq_file *m, void *v)
if (!q)
return 0;
- seq_printf(m, "Timestamp: %Lx Last AI: %Lx\n",
- q->timestamp, last_ai_time);
+ seq_printf(m, "Timestamp: %llx\n", q->timestamp);
+ seq_printf(m, "Last Data IRQ: %llx Last AI: %llx\n",
+ q->irq_ptr->last_data_irq_time, last_ai_time);
seq_printf(m, "nr_used: %d ftc: %d\n",
atomic_read(&q->nr_buf_used), q->first_to_check);
if (q->is_input_q) {
@@ -197,15 +198,11 @@ static char *qperf_names[] = {
"Assumed adapter interrupts",
"QDIO interrupts",
"Requested PCIs",
- "Inbound tasklet runs",
- "Inbound tasklet resched",
- "Inbound tasklet resched2",
"Outbound tasklet runs",
"SIGA read",
"SIGA write",
"SIGA sync",
"Inbound calls",
- "Inbound handler",
"Inbound stop_polling",
"Inbound queue full",
"Outbound calls",
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index f9a31c7819ae..03a011619908 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -202,7 +202,7 @@ again:
*/
static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
unsigned char *state, unsigned int count,
- int auto_ack, int merge_pending)
+ int auto_ack)
{
unsigned char __state = 0;
int i = 1;
@@ -217,18 +217,9 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
if (__state & SLSB_OWNER_CU)
goto out;
- if (merge_pending && __state == SLSB_P_OUTPUT_PENDING)
- __state = SLSB_P_OUTPUT_EMPTY;
-
for (; i < count; i++) {
bufnr = next_buf(bufnr);
- /* merge PENDING into EMPTY: */
- if (merge_pending &&
- q->slsb.val[bufnr] == SLSB_P_OUTPUT_PENDING &&
- __state == SLSB_P_OUTPUT_EMPTY)
- continue;
-
/* stop if next state differs from initial state: */
if (q->slsb.val[bufnr] != __state)
break;
@@ -242,7 +233,7 @@ out:
static inline int get_buf_state(struct qdio_q *q, unsigned int bufnr,
unsigned char *state, int auto_ack)
{
- return get_buf_states(q, bufnr, state, 1, auto_ack, 0);
+ return get_buf_states(q, bufnr, state, 1, auto_ack);
}
/* wrap-around safe setting of slsb states, returns number of changed buffers */
@@ -420,8 +411,6 @@ static inline void account_sbals(struct qdio_q *q, unsigned int count)
static void process_buffer_error(struct qdio_q *q, unsigned int start,
int count)
{
- q->qdio_error = QDIO_ERROR_SLSB_STATE;
-
/* special handling for no target buffer empty */
if (queue_type(q) == QDIO_IQDIO_QFMT && !q->is_input_q &&
q->sbal[start]->element[15].sflags == 0x10) {
@@ -450,7 +439,8 @@ static inline void inbound_handle_work(struct qdio_q *q, unsigned int start,
q->u.in.batch_count += count;
}
-static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start)
+static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start,
+ unsigned int *error)
{
unsigned char state = 0;
int count;
@@ -465,7 +455,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start)
* No siga sync here, as a PCI or we after a thin interrupt
* already sync'ed the queues.
*/
- count = get_buf_states(q, start, &state, count, 1, 0);
+ count = get_buf_states(q, start, &state, count, 1);
if (!count)
return 0;
@@ -484,6 +474,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start)
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in err:%1d %02x", q->nr,
count);
+ *error = QDIO_ERROR_SLSB_STATE;
process_buffer_error(q, start, count);
inbound_handle_work(q, start, count, false);
if (atomic_sub_return(count, &q->nr_buf_used) == 0)
@@ -508,11 +499,6 @@ static int get_inbound_buffer_frontier(struct qdio_q *q, unsigned int start)
}
}
-static int qdio_inbound_q_moved(struct qdio_q *q, unsigned int start)
-{
- return get_inbound_buffer_frontier(q, start);
-}
-
static inline int qdio_inbound_q_done(struct qdio_q *q, unsigned int start)
{
unsigned char state = 0;
@@ -546,96 +532,23 @@ static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q,
WARN_ON_ONCE(phys_aob & 0xFF);
}
- q->sbal_state[bufnr].flags = 0;
return phys_aob;
}
-static void qdio_kick_handler(struct qdio_q *q, unsigned int start,
- unsigned int count)
-{
- if (unlikely(q->irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
- return;
-
- if (q->is_input_q) {
- qperf_inc(q, inbound_handler);
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "kih s:%02x c:%02x", start, count);
- } else {
- qperf_inc(q, outbound_handler);
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x",
- start, count);
- }
-
- q->handler(q->irq_ptr->cdev, q->qdio_error, q->nr, start, count,
- q->irq_ptr->int_parm);
-
- /* for the next time */
- q->qdio_error = 0;
-}
-
static inline int qdio_tasklet_schedule(struct qdio_q *q)
{
if (likely(q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE)) {
- tasklet_schedule(&q->tasklet);
+ tasklet_schedule(&q->u.out.tasklet);
return 0;
}
return -EPERM;
}
-static void __qdio_inbound_processing(struct qdio_q *q)
-{
- unsigned int start = q->first_to_check;
- int count;
-
- qperf_inc(q, tasklet_inbound);
-
- count = qdio_inbound_q_moved(q, start);
- if (count == 0)
- return;
-
- qdio_kick_handler(q, start, count);
- start = add_buf(start, count);
- q->first_to_check = start;
-
- if (!qdio_inbound_q_done(q, start)) {
- /* means poll time is not yet over */
- qperf_inc(q, tasklet_inbound_resched);
- if (!qdio_tasklet_schedule(q))
- return;
- }
-
- qdio_stop_polling(q);
- /*
- * We need to check again to not lose initiative after
- * resetting the ACK state.
- */
- if (!qdio_inbound_q_done(q, start)) {
- qperf_inc(q, tasklet_inbound_resched2);
- qdio_tasklet_schedule(q);
- }
-}
-
-void qdio_inbound_processing(unsigned long data)
-{
- struct qdio_q *q = (struct qdio_q *)data;
- __qdio_inbound_processing(q);
-}
-
-static void qdio_check_pending(struct qdio_q *q, unsigned int index)
-{
- unsigned char state;
-
- if (get_buf_state(q, index, &state, 0) > 0 &&
- state == SLSB_P_OUTPUT_PENDING &&
- q->u.out.aobs[index]) {
- q->u.out.sbal_state[index].flags |=
- QDIO_OUTBUF_STATE_FLAG_PENDING;
- q->u.out.aobs[index] = NULL;
- }
-}
-
-static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start)
+static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start,
+ unsigned int *error)
{
unsigned char state = 0;
+ unsigned int i;
int count;
q->timestamp = get_tod_clock_fast();
@@ -651,13 +564,19 @@ static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start)
if (!count)
return 0;
- count = get_buf_states(q, start, &state, count, 0, q->u.out.use_cq);
+ count = get_buf_states(q, start, &state, count, 0);
if (!count)
return 0;
switch (state) {
- case SLSB_P_OUTPUT_EMPTY:
case SLSB_P_OUTPUT_PENDING:
+ /* detach the utilized QAOBs: */
+ for (i = 0; i < count; i++)
+ q->u.out.aobs[QDIO_BUFNR(start + i)] = NULL;
+
+ *error = QDIO_ERROR_SLSB_PENDING;
+ fallthrough;
+ case SLSB_P_OUTPUT_EMPTY:
/* the adapter got it */
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr,
"out empty:%1d %02x", q->nr, count);
@@ -667,6 +586,10 @@ static int get_outbound_buffer_frontier(struct qdio_q *q, unsigned int start)
account_sbals(q, count);
return count;
case SLSB_P_OUTPUT_ERROR:
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out error:%1d %02x",
+ q->nr, count);
+
+ *error = QDIO_ERROR_SLSB_STATE;
process_buffer_error(q, start, count);
atomic_sub(count, &q->nr_buf_used);
if (q->irq_ptr->perf_stat_enabled)
@@ -697,26 +620,6 @@ static inline int qdio_outbound_q_done(struct qdio_q *q)
return atomic_read(&q->nr_buf_used) == 0;
}
-static inline int qdio_outbound_q_moved(struct qdio_q *q, unsigned int start)
-{
- int count;
-
- count = get_outbound_buffer_frontier(q, start);
-
- if (count) {
- DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "out moved:%1d", q->nr);
-
- if (q->u.out.use_cq) {
- unsigned int i;
-
- for (i = 0; i < count; i++)
- qdio_check_pending(q, QDIO_BUFNR(start + i));
- }
- }
-
- return count;
-}
-
static int qdio_kick_outbound_q(struct qdio_q *q, unsigned int count,
unsigned long aob)
{
@@ -760,18 +663,29 @@ retry:
return cc;
}
-static void __qdio_outbound_processing(struct qdio_q *q)
+void qdio_outbound_tasklet(struct tasklet_struct *t)
{
+ struct qdio_output_q *out_q = from_tasklet(out_q, t, tasklet);
+ struct qdio_q *q = container_of(out_q, struct qdio_q, u.out);
unsigned int start = q->first_to_check;
+ unsigned int error = 0;
int count;
qperf_inc(q, tasklet_outbound);
WARN_ON_ONCE(atomic_read(&q->nr_buf_used) < 0);
- count = qdio_outbound_q_moved(q, start);
+ count = get_outbound_buffer_frontier(q, start, &error);
if (count) {
q->first_to_check = add_buf(start, count);
- qdio_kick_handler(q, start, count);
+
+ if (q->irq_ptr->state == QDIO_IRQ_STATE_ACTIVE) {
+ qperf_inc(q, outbound_handler);
+ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "koh: s:%02x c:%02x",
+ start, count);
+
+ q->handler(q->irq_ptr->cdev, error, q->nr, start,
+ count, q->irq_ptr->int_parm);
+ }
}
if (queue_type(q) == QDIO_ZFCP_QFMT && !pci_out_supported(q->irq_ptr) &&
@@ -798,13 +712,6 @@ sched:
qdio_tasklet_schedule(q);
}
-/* outbound tasklet */
-void qdio_outbound_processing(unsigned long data)
-{
- struct qdio_q *q = (struct qdio_q *)data;
- __qdio_outbound_processing(q);
-}
-
void qdio_outbound_timer(struct timer_list *t)
{
struct qdio_q *q = from_timer(q, t, u.out.timer);
@@ -825,19 +732,6 @@ static inline void qdio_check_outbound_pci_queues(struct qdio_irq *irq)
qdio_tasklet_schedule(out);
}
-void tiqdio_inbound_processing(unsigned long data)
-{
- struct qdio_q *q = (struct qdio_q *)data;
-
- if (need_siga_sync(q) && need_siga_sync_after_ai(q))
- qdio_sync_queues(q);
-
- /* The interrupt could be caused by a PCI request: */
- qdio_check_outbound_pci_queues(q->irq_ptr);
-
- __qdio_inbound_processing(q);
-}
-
static inline void qdio_set_state(struct qdio_irq *irq_ptr,
enum qdio_irq_states state)
{
@@ -865,15 +759,8 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
if (unlikely(irq_ptr->state != QDIO_IRQ_STATE_ACTIVE))
return;
- if (irq_ptr->irq_poll) {
- if (!test_and_set_bit(QDIO_IRQ_DISABLED, &irq_ptr->poll_state))
- irq_ptr->irq_poll(irq_ptr->cdev, irq_ptr->int_parm);
- else
- QDIO_PERF_STAT_INC(irq_ptr, int_discarded);
- } else {
- for_each_input_queue(irq_ptr, q, i)
- tasklet_schedule(&q->tasklet);
- }
+ qdio_deliver_irq(irq_ptr);
+ irq_ptr->last_data_irq_time = S390_lowcore.int_clock;
if (!pci_out_supported(irq_ptr) || !irq_ptr->scan_threshold)
return;
@@ -1016,12 +903,9 @@ static void qdio_shutdown_queues(struct qdio_irq *irq_ptr)
struct qdio_q *q;
int i;
- for_each_input_queue(irq_ptr, q, i)
- tasklet_kill(&q->tasklet);
-
for_each_output_queue(irq_ptr, q, i) {
del_timer_sync(&q->u.out.timer);
- tasklet_kill(&q->tasklet);
+ tasklet_kill(&q->u.out.tasklet);
}
}
@@ -1059,7 +943,6 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
*/
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
- tiqdio_remove_device(irq_ptr);
qdio_shutdown_queues(irq_ptr);
qdio_shutdown_debug_entries(irq_ptr);
@@ -1177,7 +1060,6 @@ int qdio_allocate(struct ccw_device *cdev, unsigned int no_input_qs,
if (rc)
goto err_queues;
- INIT_LIST_HEAD(&irq_ptr->entry);
cdev->private->qdio_data = irq_ptr;
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
return 0;
@@ -1263,6 +1145,9 @@ int qdio_establish(struct ccw_device *cdev,
!init_data->output_sbal_addr_array)
return -EINVAL;
+ if (!init_data->irq_poll)
+ return -EINVAL;
+
mutex_lock(&irq_ptr->setup_mutex);
qdio_trace_init_data(irq_ptr, init_data);
qdio_setup_irq(irq_ptr, init_data);
@@ -1357,9 +1242,6 @@ int qdio_activate(struct ccw_device *cdev)
goto out;
}
- if (is_thinint_irq(irq_ptr))
- tiqdio_add_device(irq_ptr);
-
/* wait for subchannel to become active */
msleep(5);
@@ -1557,17 +1439,16 @@ static int __qdio_inspect_queue(struct qdio_q *q, unsigned int *bufnr,
unsigned int start = q->first_to_check;
int count;
- count = q->is_input_q ? qdio_inbound_q_moved(q, start) :
- qdio_outbound_q_moved(q, start);
+ *error = 0;
+ count = q->is_input_q ? get_inbound_buffer_frontier(q, start, error) :
+ get_outbound_buffer_frontier(q, start, error);
if (count == 0)
return 0;
*bufnr = start;
- *error = q->qdio_error;
/* for the next time */
q->first_to_check = add_buf(start, count);
- q->qdio_error = 0;
return count;
}
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index a5b2e16b7aa8..c8b9620bc688 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -259,14 +259,6 @@ static void setup_queues(struct qdio_irq *irq_ptr,
setup_storage_lists(q, irq_ptr,
qdio_init->input_sbal_addr_array[i], i);
-
- if (is_thinint_irq(irq_ptr)) {
- tasklet_init(&q->tasklet, tiqdio_inbound_processing,
- (unsigned long) q);
- } else {
- tasklet_init(&q->tasklet, qdio_inbound_processing,
- (unsigned long) q);
- }
}
for_each_output_queue(irq_ptr, q, i) {
@@ -280,8 +272,7 @@ static void setup_queues(struct qdio_irq *irq_ptr,
setup_storage_lists(q, irq_ptr,
qdio_init->output_sbal_addr_array[i], i);
- tasklet_init(&q->tasklet, qdio_outbound_processing,
- (unsigned long) q);
+ tasklet_setup(&q->u.out.tasklet, qdio_outbound_tasklet);
timer_setup(&q->u.out.timer, qdio_outbound_timer, 0);
}
}
@@ -483,12 +474,8 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data)
ccw_device_get_schid(cdev, &irq_ptr->schid);
setup_queues(irq_ptr, init_data);
- if (init_data->irq_poll) {
- irq_ptr->irq_poll = init_data->irq_poll;
- set_bit(QDIO_IRQ_DISABLED, &irq_ptr->poll_state);
- } else {
- irq_ptr->irq_poll = NULL;
- }
+ irq_ptr->irq_poll = init_data->irq_poll;
+ set_bit(QDIO_IRQ_DISABLED, &irq_ptr->poll_state);
setup_qib(irq_ptr, init_data);
set_impl_params(irq_ptr, init_data->qib_param_field_format,
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 7a440e4328cd..8e09bf3a2fcd 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -66,22 +66,6 @@ static void put_indicator(u32 *addr)
atomic_dec(&ind->count);
}
-void tiqdio_add_device(struct qdio_irq *irq_ptr)
-{
- mutex_lock(&tiq_list_lock);
- list_add_rcu(&irq_ptr->entry, &tiq_list);
- mutex_unlock(&tiq_list_lock);
-}
-
-void tiqdio_remove_device(struct qdio_irq *irq_ptr)
-{
- mutex_lock(&tiq_list_lock);
- list_del_rcu(&irq_ptr->entry);
- mutex_unlock(&tiq_list_lock);
- synchronize_rcu();
- INIT_LIST_HEAD(&irq_ptr->entry);
-}
-
static inline int references_shared_dsci(struct qdio_irq *irq_ptr)
{
return irq_ptr->dsci == &q_indicators[TIQDIO_SHARED_IND].ind;
@@ -106,32 +90,6 @@ static inline u32 clear_shared_ind(void)
return xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);
}
-static inline void tiqdio_call_inq_handlers(struct qdio_irq *irq)
-{
- struct qdio_q *q;
- int i;
-
- if (!references_shared_dsci(irq))
- xchg(irq->dsci, 0);
-
- if (irq->irq_poll) {
- if (!test_and_set_bit(QDIO_IRQ_DISABLED, &irq->poll_state))
- irq->irq_poll(irq->cdev, irq->int_parm);
- else
- QDIO_PERF_STAT_INC(irq, int_discarded);
-
- return;
- }
-
- for_each_input_queue(irq, q, i) {
- /*
- * Call inbound processing but not directly
- * since that could starve other thinint queues.
- */
- tasklet_schedule(&q->tasklet);
- }
-}
-
/**
* tiqdio_thinint_handler - thin interrupt handler for qdio
* @airq: pointer to adapter interrupt descriptor
@@ -139,10 +97,11 @@ static inline void tiqdio_call_inq_handlers(struct qdio_irq *irq)
*/
static void tiqdio_thinint_handler(struct airq_struct *airq, bool floating)
{
+ u64 irq_time = S390_lowcore.int_clock;
u32 si_used = clear_shared_ind();
struct qdio_irq *irq;
- last_ai_time = S390_lowcore.int_clock;
+ last_ai_time = irq_time;
inc_irq_stat(IRQIO_QAI);
/* protect tiq_list entries, only changed in activate or shutdown */
@@ -153,10 +112,15 @@ static void tiqdio_thinint_handler(struct airq_struct *airq, bool floating)
if (unlikely(references_shared_dsci(irq))) {
if (!si_used)
continue;
- } else if (!*irq->dsci)
- continue;
+ } else {
+ if (!*irq->dsci)
+ continue;
- tiqdio_call_inq_handlers(irq);
+ xchg(irq->dsci, 0);
+ }
+
+ qdio_deliver_irq(irq);
+ irq->last_data_irq_time = irq_time;
QDIO_PERF_STAT_INC(irq, adapter_int);
}
@@ -208,10 +172,15 @@ int qdio_establish_thinint(struct qdio_irq *irq_ptr)
DBF_HEX(&irq_ptr->dsci, sizeof(void *));
rc = set_subchannel_ind(irq_ptr, 0);
- if (rc)
+ if (rc) {
put_indicator(irq_ptr->dsci);
+ return rc;
+ }
- return rc;
+ mutex_lock(&tiq_list_lock);
+ list_add_rcu(&irq_ptr->entry, &tiq_list);
+ mutex_unlock(&tiq_list_lock);
+ return 0;
}
void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
@@ -219,6 +188,11 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
if (!is_thinint_irq(irq_ptr))
return;
+ mutex_lock(&tiq_list_lock);
+ list_del_rcu(&irq_ptr->entry);
+ mutex_unlock(&tiq_list_lock);
+ synchronize_rcu();
+
/* reset adapter interrupt indicators */
set_subchannel_ind(irq_ptr, 1);
put_indicator(irq_ptr->dsci);
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 10206e4498d0..52eaf51c9bb6 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -1438,6 +1438,8 @@ static int icarsamodexpo_ioctl(struct ap_perms *perms, unsigned long arg)
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc) {
ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSAMODEXPO rc=%d\n", rc);
return rc;
@@ -1481,6 +1483,8 @@ static int icarsacrt_ioctl(struct ap_perms *perms, unsigned long arg)
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc) {
ZCRYPT_DBF(DBF_DEBUG, "ioctl ICARSACRT rc=%d\n", rc);
return rc;
@@ -1524,6 +1528,8 @@ static int zsecsendcprb_ioctl(struct ap_perms *perms, unsigned long arg)
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc)
ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDCPRB rc=%d status=0x%x\n",
rc, xcRB.status);
@@ -1568,6 +1574,8 @@ static int zsendep11cprb_ioctl(struct ap_perms *perms, unsigned long arg)
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc)
ZCRYPT_DBF(DBF_DEBUG, "ioctl ZSENDEP11CPRB rc=%d\n", rc);
if (copy_to_user(uxcrb, &xcrb, sizeof(xcrb)))
@@ -1744,6 +1752,8 @@ static long trans_modexpo32(struct ap_perms *perms, struct file *filp,
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc)
return rc;
return put_user(mex64.outputdatalength,
@@ -1795,6 +1805,8 @@ static long trans_modexpo_crt32(struct ap_perms *perms, struct file *filp,
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
if (rc)
return rc;
return put_user(crt64.outputdatalength,
@@ -1865,6 +1877,8 @@ static long trans_xcRB32(struct ap_perms *perms, struct file *filp,
if (rc == -EAGAIN)
tr.again_counter++;
} while (rc == -EAGAIN && tr.again_counter < TRACK_AGAIN_MAX);
+ if (rc == -EAGAIN && tr.again_counter >= TRACK_AGAIN_MAX)
+ rc = -EIO;
xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length;
xcRB32.reply_data_length = xcRB64.reply_data_length;
xcRB32.status = xcRB64.status;
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c
index b1046811450f..d68c0ed5e0dd 100644
--- a/drivers/s390/crypto/zcrypt_ccamisc.c
+++ b/drivers/s390/crypto/zcrypt_ccamisc.c
@@ -662,7 +662,10 @@ int cca_sec2protkey(u16 cardnr, u16 domain,
__func__,
(int) prepcblk->ccp_rtcode,
(int) prepcblk->ccp_rscode);
- rc = -EIO;
+ if (prepcblk->ccp_rtcode == 8 && prepcblk->ccp_rscode == 2290)
+ rc = -EAGAIN;
+ else
+ rc = -EIO;
goto out;
}
if (prepcblk->ccp_rscode != 0) {
@@ -1275,7 +1278,10 @@ int cca_cipher2protkey(u16 cardnr, u16 domain, const u8 *ckey,
__func__,
(int) prepcblk->ccp_rtcode,
(int) prepcblk->ccp_rscode);
- rc = -EIO;
+ if (prepcblk->ccp_rtcode == 8 && prepcblk->ccp_rscode == 2290)
+ rc = -EAGAIN;
+ else
+ rc = -EIO;
goto out;
}
if (prepcblk->ccp_rscode != 0) {
@@ -1441,7 +1447,10 @@ int cca_ecc2protkey(u16 cardnr, u16 domain, const u8 *key,
__func__,
(int) prepcblk->ccp_rtcode,
(int) prepcblk->ccp_rscode);
- rc = -EIO;
+ if (prepcblk->ccp_rtcode == 8 && prepcblk->ccp_rscode == 2290)
+ rc = -EAGAIN;
+ else
+ rc = -EIO;
goto out;
}
if (prepcblk->ccp_rscode != 0) {
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 89b223885b0c..b71b8902d1c4 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -6074,14 +6074,15 @@ int qeth_poll(struct napi_struct *napi, int budget)
EXPORT_SYMBOL_GPL(qeth_poll);
static void qeth_iqd_tx_complete(struct qeth_qdio_out_q *queue,
- unsigned int bidx, bool error, int budget)
+ unsigned int bidx, unsigned int qdio_error,
+ int budget)
{
struct qeth_qdio_out_buffer *buffer = queue->bufs[bidx];
u8 sflags = buffer->buffer->element[15].sflags;
struct qeth_card *card = queue->card;
+ bool error = !!qdio_error;
- if (queue->bufstates && (queue->bufstates[bidx].flags &
- QDIO_OUTBUF_STATE_FLAG_PENDING)) {
+ if (qdio_error == QDIO_ERROR_SLSB_PENDING) {
WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED);
QETH_CARD_TEXT_(card, 5, "pel%u", bidx);