aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/s390/cio
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r--drivers/s390/cio/ccwgroup.c26
-rw-r--r--drivers/s390/cio/chsc.c156
-rw-r--r--drivers/s390/cio/device.c11
-rw-r--r--drivers/s390/cio/device.h2
-rw-r--r--drivers/s390/cio/device_ops.c17
-rw-r--r--drivers/s390/cio/device_pgid.c10
-rw-r--r--drivers/s390/cio/qdio_main.c52
-rw-r--r--drivers/s390/cio/qdio_setup.c9
-rw-r--r--drivers/s390/cio/qdio_thinint.c2
9 files changed, 163 insertions, 122 deletions
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 731470e68493..84846c2b96d3 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -65,10 +65,18 @@ static void __ccwgroup_remove_cdev_refs(struct ccwgroup_device *gdev)
}
}
-static int ccwgroup_set_online(struct ccwgroup_device *gdev)
+/**
+ * ccwgroup_set_online() - enable a ccwgroup device
+ * @gdev: target ccwgroup device
+ *
+ * This function attempts to put the ccwgroup device into the online state.
+ * Returns:
+ * %0 on success and a negative error value on failure.
+ */
+int ccwgroup_set_online(struct ccwgroup_device *gdev)
{
struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
- int ret = 0;
+ int ret = -EINVAL;
if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0)
return -EAGAIN;
@@ -84,11 +92,20 @@ out:
atomic_set(&gdev->onoff, 0);
return ret;
}
+EXPORT_SYMBOL(ccwgroup_set_online);
-static int ccwgroup_set_offline(struct ccwgroup_device *gdev)
+/**
+ * ccwgroup_set_offline() - disable a ccwgroup device
+ * @gdev: target ccwgroup device
+ *
+ * This function attempts to put the ccwgroup device into the offline state.
+ * Returns:
+ * %0 on success and a negative error value on failure.
+ */
+int ccwgroup_set_offline(struct ccwgroup_device *gdev)
{
struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
- int ret = 0;
+ int ret = -EINVAL;
if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0)
return -EAGAIN;
@@ -104,6 +121,7 @@ out:
atomic_set(&gdev->onoff, 0);
return ret;
}
+EXPORT_SYMBOL(ccwgroup_set_offline);
static ssize_t ccwgroup_online_store(struct device *dev,
struct device_attribute *attr,
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 4d51a7c4eb8b..68e80e2734a4 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -1,7 +1,7 @@
/*
* S/390 common I/O routines -- channel subsystem call
*
- * Copyright IBM Corp. 1999, 2010
+ * Copyright IBM Corp. 1999,2012
* Author(s): Ingo Adlung (adlung@de.ibm.com)
* Cornelia Huck (cornelia.huck@de.ibm.com)
* Arnd Bergmann (arndb@de.ibm.com)
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/pci.h>
#include <asm/cio.h>
#include <asm/chpid.h>
@@ -260,26 +261,45 @@ __get_chpid_from_lir(void *data)
return (u16) (lir->indesc[0]&0x000000ff);
}
-struct chsc_sei_area {
- struct chsc_header request;
+struct chsc_sei_nt0_area {
+ u8 flags;
+ u8 vf; /* validity flags */
+ u8 rs; /* reporting source */
+ u8 cc; /* content code */
+ u16 fla; /* full link address */
+ u16 rsid; /* reporting source id */
u32 reserved1;
u32 reserved2;
- u32 reserved3;
- struct chsc_header response;
- u32 reserved4;
- u8 flags;
- u8 vf; /* validity flags */
- u8 rs; /* reporting source */
- u8 cc; /* content code */
- u16 fla; /* full link address */
- u16 rsid; /* reporting source id */
- u32 reserved5;
- u32 reserved6;
- u8 ccdf[4096 - 16 - 24]; /* content-code dependent field */
/* ccdf has to be big enough for a link-incident record */
-} __attribute__ ((packed));
-
-static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area)
+ u8 ccdf[PAGE_SIZE - 24 - 16]; /* content-code dependent field */
+} __packed;
+
+struct chsc_sei_nt2_area {
+ u8 flags; /* p and v bit */
+ u8 reserved1;
+ u8 reserved2;
+ u8 cc; /* content code */
+ u32 reserved3[13];
+ u8 ccdf[PAGE_SIZE - 24 - 56]; /* content-code dependent field */
+} __packed;
+
+#define CHSC_SEI_NT0 0ULL
+#define CHSC_SEI_NT2 (1ULL << 61)
+
+struct chsc_sei {
+ struct chsc_header request;
+ u32 reserved1;
+ u64 ntsm; /* notification type mask */
+ struct chsc_header response;
+ u32 reserved2;
+ union {
+ struct chsc_sei_nt0_area nt0_area;
+ struct chsc_sei_nt2_area nt2_area;
+ u8 nt_area[PAGE_SIZE - 24];
+ } u;
+} __packed;
+
+static void chsc_process_sei_link_incident(struct chsc_sei_nt0_area *sei_area)
{
struct chp_id chpid;
int id;
@@ -298,7 +318,7 @@ static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area)
}
}
-static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_res_acc(struct chsc_sei_nt0_area *sei_area)
{
struct chp_link link;
struct chp_id chpid;
@@ -330,7 +350,7 @@ static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area)
s390_process_res_acc(&link);
}
-static void chsc_process_sei_chp_avail(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_chp_avail(struct chsc_sei_nt0_area *sei_area)
{
struct channel_path *chp;
struct chp_id chpid;
@@ -366,7 +386,7 @@ struct chp_config_data {
u8 pc;
};
-static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_chp_config(struct chsc_sei_nt0_area *sei_area)
{
struct chp_config_data *data;
struct chp_id chpid;
@@ -398,7 +418,7 @@ static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area)
}
}
-static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area)
{
int ret;
@@ -412,13 +432,26 @@ static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area)
" failed (rc=%d).\n", ret);
}
-static void chsc_process_sei(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
{
- /* 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();
+#ifdef CONFIG_PCI
+ switch (sei_area->cc) {
+ case 1:
+ zpci_event_error(sei_area->ccdf);
+ break;
+ case 2:
+ zpci_event_availability(sei_area->ccdf);
+ break;
+ default:
+ CIO_CRW_EVENT(2, "chsc: unhandled sei content code %d\n",
+ sei_area->cc);
+ break;
}
+#endif
+}
+
+static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
+{
/* which kind of information was stored? */
switch (sei_area->cc) {
case 1: /* link incident*/
@@ -443,9 +476,51 @@ static void chsc_process_sei(struct chsc_sei_area *sei_area)
}
}
+static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
+{
+ do {
+ memset(sei, 0, sizeof(*sei));
+ sei->request.length = 0x0010;
+ sei->request.code = 0x000e;
+ sei->ntsm = 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->ntsm) {
+ case CHSC_SEI_NT0:
+ chsc_process_sei_nt0(&sei->u.nt0_area);
+ return 1;
+ case CHSC_SEI_NT2:
+ chsc_process_sei_nt2(&sei->u.nt2_area);
+ return 1;
+ default:
+ CIO_CRW_EVENT(2, "chsc: unhandled nt (nt=%08Lx)\n",
+ sei->ntsm);
+ return 0;
+ }
+ } else {
+ CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
+ sei->response.code);
+ break;
+ }
+ } while (sei->u.nt0_area.flags & 0x80);
+
+ return 0;
+}
+
static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
{
- struct chsc_sei_area *sei_area;
+ struct chsc_sei *sei;
if (overflow) {
css_schedule_eval_all();
@@ -459,25 +534,18 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
return;
/* Access to sei_page is serialized through machine check handler
* thread, so no need for locking. */
- sei_area = sei_page;
+ sei = sei_page;
CIO_TRACE_EVENT(2, "prcss");
- do {
- memset(sei_area, 0, sizeof(*sei_area));
- sei_area->request.length = 0x0010;
- sei_area->request.code = 0x000e;
- if (chsc(sei_area))
- break;
- if (sei_area->response.code == 0x0001) {
- CIO_CRW_EVENT(4, "chsc: sei successful\n");
- chsc_process_sei(sei_area);
- } else {
- CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
- sei_area->response.code);
- break;
- }
- } while (sei_area->flags & 0x80);
+ /*
+ * The ntsm does not allow to select NT0 and NT2 together. We need to
+ * first check for NT2, than additionally for NT0...
+ */
+#ifdef CONFIG_PCI
+ if (!__chsc_process_crw(sei, CHSC_SEI_NT2))
+#endif
+ __chsc_process_crw(sei, CHSC_SEI_NT0);
}
void chsc_chp_online(struct chp_id chpid)
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index fd3143c291c6..6995cff44636 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -2036,16 +2036,6 @@ void ccw_driver_unregister(struct ccw_driver *cdriver)
driver_unregister(&cdriver->driver);
}
-/* Helper func for qdio. */
-struct subchannel_id
-ccw_device_get_subchannel_id(struct ccw_device *cdev)
-{
- struct subchannel *sch;
-
- sch = to_subchannel(cdev->dev.parent);
- return sch->schid;
-}
-
static void ccw_device_todo(struct work_struct *work)
{
struct ccw_device_private *priv;
@@ -2138,4 +2128,3 @@ EXPORT_SYMBOL(ccw_device_set_offline);
EXPORT_SYMBOL(ccw_driver_register);
EXPORT_SYMBOL(ccw_driver_unregister);
EXPORT_SYMBOL(get_ccwdev_by_busid);
-EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id);
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 6bace6942396..2e575cff9845 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -142,9 +142,7 @@ int ccw_device_notify(struct ccw_device *, int);
void ccw_device_set_disconnected(struct ccw_device *cdev);
void ccw_device_set_notoper(struct ccw_device *cdev);
-/* qdio needs this. */
void ccw_device_set_timeout(struct ccw_device *, int);
-extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *);
/* Channel measurement facility related */
void retry_set_schib(struct ccw_device *cdev);
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index ec7fb6d3b479..c77b6e06bf64 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -755,14 +755,18 @@ int ccw_device_tm_intrg(struct ccw_device *cdev)
}
EXPORT_SYMBOL(ccw_device_tm_intrg);
-// FIXME: these have to go:
-
-int
-_ccw_device_get_subchannel_number(struct ccw_device *cdev)
+/**
+ * ccw_device_get_schid - obtain a subchannel id
+ * @cdev: device to obtain the id for
+ * @schid: where to fill in the values
+ */
+void ccw_device_get_schid(struct ccw_device *cdev, struct subchannel_id *schid)
{
- return cdev->private->schid.sch_no;
-}
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ *schid = sch->schid;
+}
+EXPORT_SYMBOL_GPL(ccw_device_get_schid);
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(ccw_device_set_options_mask);
@@ -777,5 +781,4 @@ EXPORT_SYMBOL(ccw_device_start_timeout_key);
EXPORT_SYMBOL(ccw_device_start_key);
EXPORT_SYMBOL(ccw_device_get_ciw);
EXPORT_SYMBOL(ccw_device_get_path_mask);
-EXPORT_SYMBOL(_ccw_device_get_subchannel_number);
EXPORT_SYMBOL_GPL(ccw_device_get_chp_desc);
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 368368fe04b2..908d287f66c1 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -234,7 +234,7 @@ static int pgid_cmp(struct pgid *p1, struct pgid *p2)
* Determine pathgroup state from PGID data.
*/
static void pgid_analyze(struct ccw_device *cdev, struct pgid **p,
- int *mismatch, int *reserved, u8 *reset)
+ int *mismatch, u8 *reserved, u8 *reset)
{
struct pgid *pgid = &cdev->private->pgid[0];
struct pgid *first = NULL;
@@ -248,7 +248,7 @@ static void pgid_analyze(struct ccw_device *cdev, struct pgid **p,
if ((cdev->private->pgid_valid_mask & lpm) == 0)
continue;
if (pgid->inf.ps.state2 == SNID_STATE2_RESVD_ELSE)
- *reserved = 1;
+ *reserved |= lpm;
if (pgid_is_reset(pgid)) {
*reset |= lpm;
continue;
@@ -316,14 +316,14 @@ static void snid_done(struct ccw_device *cdev, int rc)
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct pgid *pgid;
int mismatch = 0;
- int reserved = 0;
+ u8 reserved = 0;
u8 reset = 0;
u8 donepm;
if (rc)
goto out;
pgid_analyze(cdev, &pgid, &mismatch, &reserved, &reset);
- if (reserved)
+ if (reserved == cdev->private->pgid_valid_mask)
rc = -EUSERS;
else if (mismatch)
rc = -EOPNOTSUPP;
@@ -336,7 +336,7 @@ static void snid_done(struct ccw_device *cdev, int rc)
}
out:
CIO_MSG_EVENT(2, "snid: device 0.%x.%04x: rc=%d pvm=%02x vpm=%02x "
- "todo=%02x mism=%d rsvd=%d reset=%02x\n", id->ssid,
+ "todo=%02x mism=%d rsvd=%02x reset=%02x\n", id->ssid,
id->devno, rc, cdev->private->pgid_valid_mask, sch->vpm,
cdev->private->pgid_todo_mask, mismatch, reserved, reset);
switch (rc) {
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index e06fa03ea1e4..1671d3461f29 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -129,7 +129,6 @@ static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
int rc, tmp_count = count, tmp_start = start, nr = q->nr, retried = 0;
unsigned int ccq = 0;
- BUG_ON(!q->irq_ptr->sch_token);
qperf_inc(q, eqbs);
if (!q->is_input_q)
@@ -147,7 +146,6 @@ again:
}
if (rc == 2) {
- BUG_ON(tmp_count == count);
qperf_inc(q, eqbs_partial);
DBF_DEV_EVENT(DBF_WARN, q->irq_ptr, "EQBS part:%02x",
tmp_count);
@@ -189,8 +187,6 @@ static int qdio_do_sqbs(struct qdio_q *q, unsigned char state, int start,
if (!count)
return 0;
-
- BUG_ON(!q->irq_ptr->sch_token);
qperf_inc(q, sqbs);
if (!q->is_input_q)
@@ -199,7 +195,7 @@ again:
ccq = do_sqbs(q->irq_ptr->sch_token, state, nr, &tmp_start, &tmp_count);
rc = qdio_check_ccq(q, ccq);
if (!rc) {
- WARN_ON(tmp_count);
+ WARN_ON_ONCE(tmp_count);
return count - tmp_count;
}
@@ -224,9 +220,6 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr,
unsigned char __state = 0;
int i;
- BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK);
- BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q);
-
if (is_qebsm(q))
return qdio_do_eqbs(q, state, bufnr, count, auto_ack);
@@ -258,9 +251,6 @@ static inline int set_buf_states(struct qdio_q *q, int bufnr,
{
int i;
- BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK);
- BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q);
-
if (is_qebsm(q))
return qdio_do_sqbs(q, state, bufnr, count);
@@ -345,7 +335,6 @@ again:
/* hipersocket busy condition */
if (unlikely(*busy_bit)) {
- WARN_ON(queue_type(q) != QDIO_IQDIO_QFMT || cc != 2);
retries++;
if (!start_time) {
@@ -559,7 +548,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in nop");
break;
default:
- BUG();
+ WARN_ON_ONCE(1);
}
out:
return q->first_to_check;
@@ -678,12 +667,10 @@ static inline void qdio_handle_aobs(struct qdio_q *q, int start, int count)
if (aob == NULL)
continue;
- BUG_ON(q->u.out.sbal_state == NULL);
q->u.out.sbal_state[b].flags |=
QDIO_OUTBUF_STATE_FLAG_PENDING;
q->u.out.aobs[b] = NULL;
} else if (state == SLSB_P_OUTPUT_EMPTY) {
- BUG_ON(q->u.out.sbal_state == NULL);
q->u.out.sbal_state[b].aob = NULL;
}
b = next_buf(b);
@@ -703,12 +690,11 @@ static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q,
q->aobs[bufnr] = aob;
}
if (q->aobs[bufnr]) {
- BUG_ON(q->sbal_state == NULL);
q->sbal_state[bufnr].flags = QDIO_OUTBUF_STATE_FLAG_NONE;
q->sbal_state[bufnr].aob = q->aobs[bufnr];
q->aobs[bufnr]->user1 = (u64) q->sbal_state[bufnr].user;
phys_aob = virt_to_phys(q->aobs[bufnr]);
- BUG_ON(phys_aob & 0xFF);
+ WARN_ON_ONCE(phys_aob & 0xFF);
}
out:
@@ -809,8 +795,6 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
goto out;
switch (state) {
- case SLSB_P_OUTPUT_PENDING:
- BUG();
case SLSB_P_OUTPUT_EMPTY:
/* the adapter got it */
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr,
@@ -840,7 +824,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
case SLSB_P_OUTPUT_HALTED:
break;
default:
- BUG();
+ WARN_ON_ONCE(1);
}
out:
@@ -912,7 +896,7 @@ retry:
static void __qdio_outbound_processing(struct qdio_q *q)
{
qperf_inc(q, tasklet_outbound);
- BUG_ON(atomic_read(&q->nr_buf_used) < 0);
+ WARN_ON_ONCE(atomic_read(&q->nr_buf_used) < 0);
if (qdio_outbound_q_moved(q))
qdio_kick_handler(q);
@@ -1138,16 +1122,10 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
irq_ptr->perf_stat.qdio_int++;
if (IS_ERR(irb)) {
- switch (PTR_ERR(irb)) {
- case -EIO:
- DBF_ERROR("%4x IO error", irq_ptr->schid.sch_no);
- qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
- wake_up(&cdev->private->wait_q);
- return;
- default:
- WARN_ON(1);
- return;
- }
+ DBF_ERROR("%4x IO error", irq_ptr->schid.sch_no);
+ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
+ wake_up(&cdev->private->wait_q);
+ return;
}
qdio_irq_check_sense(irq_ptr, irb);
cstat = irb->scsw.cmd.cstat;
@@ -1173,7 +1151,7 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
case QDIO_IRQ_STATE_STOPPED:
break;
default:
- WARN_ON(1);
+ WARN_ON_ONCE(1);
}
wake_up(&cdev->private->wait_q);
}
@@ -1227,7 +1205,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
if (!irq_ptr)
return -ENODEV;
- BUG_ON(irqs_disabled());
+ WARN_ON_ONCE(irqs_disabled());
DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no);
mutex_lock(&irq_ptr->setup_mutex);
@@ -1358,7 +1336,6 @@ int qdio_allocate(struct qdio_initialize *init_data)
irq_ptr->qdr = (struct qdr *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!irq_ptr->qdr)
goto out_rel;
- WARN_ON((unsigned long)irq_ptr->qdr & 0xfff);
if (qdio_allocate_qs(irq_ptr, init_data->no_input_qs,
init_data->no_output_qs))
@@ -1597,9 +1574,7 @@ static int handle_inbound(struct qdio_q *q, unsigned int callflags,
set:
count = set_buf_states(q, bufnr, SLSB_CU_INPUT_EMPTY, count);
-
used = atomic_add_return(count, &q->nr_buf_used) - count;
- BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q);
if (need_siga_in(q))
return qdio_siga_input(q);
@@ -1624,7 +1599,6 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
count = set_buf_states(q, bufnr, SLSB_CU_OUTPUT_PRIMED, count);
used = atomic_add_return(count, &q->nr_buf_used);
- BUG_ON(used > QDIO_MAX_BUFFERS_PER_Q);
if (used == QDIO_MAX_BUFFERS_PER_Q)
qperf_inc(q, outbound_queue_full);
@@ -1678,7 +1652,6 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags,
{
struct qdio_irq *irq_ptr;
-
if (bufnr >= QDIO_MAX_BUFFERS_PER_Q || count > QDIO_MAX_BUFFERS_PER_Q)
return -EINVAL;
@@ -1721,8 +1694,6 @@ int qdio_start_irq(struct ccw_device *cdev, int nr)
return -ENODEV;
q = irq_ptr->input_qs[nr];
- WARN_ON(queue_irqs_enabled(q));
-
clear_nonshared_ind(irq_ptr);
qdio_stop_polling(q);
clear_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state);
@@ -1769,7 +1740,6 @@ int qdio_get_next_buffers(struct ccw_device *cdev, int nr, int *bufnr,
if (!irq_ptr)
return -ENODEV;
q = irq_ptr->input_qs[nr];
- WARN_ON(queue_irqs_enabled(q));
/*
* Cannot rely on automatic sync after interrupt since queues may
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 6c973db14983..16ecd35b8e51 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -140,10 +140,8 @@ static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2);
/* fill in sbal */
- for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) {
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
q->sbal[j] = *sbals_array++;
- BUG_ON((unsigned long)q->sbal[j] & 0xff);
- }
/* fill in slib */
if (i > 0) {
@@ -434,9 +432,8 @@ int qdio_setup_irq(struct qdio_initialize *init_data)
irq_ptr->int_parm = init_data->int_parm;
irq_ptr->nr_input_qs = init_data->no_input_qs;
irq_ptr->nr_output_qs = init_data->no_output_qs;
-
- irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
irq_ptr->cdev = init_data->cdev;
+ ccw_device_get_schid(irq_ptr->cdev, &irq_ptr->schid);
setup_queues(irq_ptr, init_data);
setup_qib(irq_ptr, init_data);
@@ -483,7 +480,7 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
char s[80];
snprintf(s, 80, "qdio: %s %s on SC %x using "
- "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s\n",
+ "AI:%d QEBSM:%d PRI:%d TDD:%d SIGA:%s%s%s%s%s\n",
dev_name(&cdev->dev),
(irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" :
((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"),
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 2e060088fa87..bdb394b066fc 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -73,7 +73,6 @@ static void put_indicator(u32 *addr)
void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
{
mutex_lock(&tiq_list_lock);
- BUG_ON(irq_ptr->nr_input_qs < 1);
list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list);
mutex_unlock(&tiq_list_lock);
xchg(irq_ptr->dsci, 1 << 7);
@@ -83,7 +82,6 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
{
struct qdio_q *q;
- BUG_ON(irq_ptr->nr_input_qs < 1);
q = irq_ptr->input_qs[0];
/* if establish triggered an error */
if (!q || !q->entry.prev || !q->entry.next)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.