aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/s390
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/cio/cio_inject.c2
-rw-r--r--drivers/s390/net/qeth_core.h1
-rw-r--r--drivers/s390/net/qeth_core_main.c78
3 files changed, 35 insertions, 46 deletions
diff --git a/drivers/s390/cio/cio_inject.c b/drivers/s390/cio/cio_inject.c
index 8613fa937237..a2e771ebae8e 100644
--- a/drivers/s390/cio/cio_inject.c
+++ b/drivers/s390/cio/cio_inject.c
@@ -95,7 +95,7 @@ static ssize_t crw_inject_write(struct file *file, const char __user *buf,
return -EINVAL;
}
- buffer = vmemdup_user(buf, lbuf);
+ buffer = memdup_user_nul(buf, lbuf);
if (IS_ERR(buffer))
return -ENOMEM;
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index e8c360879883..71464e9ad4f8 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -545,7 +545,6 @@ static inline bool qeth_out_queue_is_empty(struct qeth_qdio_out_q *queue)
struct qeth_qdio_info {
atomic_t state;
/* input */
- int no_in_queues;
struct qeth_qdio_q *in_q;
struct qeth_qdio_q *c_q;
struct qeth_qdio_buffer_pool in_buf_pool;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index c1346c4e2242..5c69cba6459f 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -354,8 +354,8 @@ static int qeth_cq_init(struct qeth_card *card)
qdio_reset_buffers(card->qdio.c_q->qdio_bufs,
QDIO_MAX_BUFFERS_PER_Q);
card->qdio.c_q->next_buf_to_init = 127;
- rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
- card->qdio.no_in_queues - 1, 0, 127, NULL);
+ rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 1, 0, 127,
+ NULL);
if (rc) {
QETH_CARD_TEXT_(card, 2, "1err%d", rc);
goto out;
@@ -366,35 +366,33 @@ out:
return rc;
}
+static void qeth_free_cq(struct qeth_card *card)
+{
+ if (card->qdio.c_q) {
+ qeth_free_qdio_queue(card->qdio.c_q);
+ card->qdio.c_q = NULL;
+ }
+}
+
static int qeth_alloc_cq(struct qeth_card *card)
{
if (card->options.cq == QETH_CQ_ENABLED) {
QETH_CARD_TEXT(card, 2, "cqon");
- card->qdio.c_q = qeth_alloc_qdio_queue();
if (!card->qdio.c_q) {
- dev_err(&card->gdev->dev, "Failed to create completion queue\n");
- return -ENOMEM;
+ card->qdio.c_q = qeth_alloc_qdio_queue();
+ if (!card->qdio.c_q) {
+ dev_err(&card->gdev->dev,
+ "Failed to create completion queue\n");
+ return -ENOMEM;
+ }
}
-
- card->qdio.no_in_queues = 2;
} else {
QETH_CARD_TEXT(card, 2, "nocq");
- card->qdio.c_q = NULL;
- card->qdio.no_in_queues = 1;
+ qeth_free_cq(card);
}
- QETH_CARD_TEXT_(card, 2, "iqc%d", card->qdio.no_in_queues);
return 0;
}
-static void qeth_free_cq(struct qeth_card *card)
-{
- if (card->qdio.c_q) {
- --card->qdio.no_in_queues;
- qeth_free_qdio_queue(card->qdio.c_q);
- card->qdio.c_q = NULL;
- }
-}
-
static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
int delayed)
{
@@ -1492,7 +1490,6 @@ static void qeth_init_qdio_info(struct qeth_card *card)
card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
/* inbound */
- card->qdio.no_in_queues = 1;
card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
if (IS_IQD(card))
card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
@@ -2592,6 +2589,10 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card)
QETH_CARD_TEXT(card, 2, "allcqdbf");
+ /* completion */
+ if (qeth_alloc_cq(card))
+ goto out_err;
+
if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
return 0;
@@ -2632,10 +2633,6 @@ static int qeth_alloc_qdio_queues(struct qeth_card *card)
queue->priority = QETH_QIB_PQUE_PRIO_DEFAULT;
}
- /* completion */
- if (qeth_alloc_cq(card))
- goto out_freeoutq;
-
return 0;
out_freeoutq:
@@ -2649,6 +2646,8 @@ out_freeinq:
card->qdio.in_q = NULL;
out_nomem:
atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
+ qeth_free_cq(card);
+out_err:
return -ENOMEM;
}
@@ -2656,11 +2655,12 @@ static void qeth_free_qdio_queues(struct qeth_card *card)
{
int i, j;
+ qeth_free_cq(card);
+
if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
QETH_QDIO_UNINITIALIZED)
return;
- qeth_free_cq(card);
for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
if (card->qdio.in_q->bufs[j].rx_skb)
dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
@@ -3713,24 +3713,11 @@ static void qeth_qdio_poll(struct ccw_device *cdev, unsigned long card_ptr)
int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
{
- int rc;
-
- if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
- rc = -1;
- goto out;
- } else {
- if (card->options.cq == cq) {
- rc = 0;
- goto out;
- }
-
- qeth_free_qdio_queues(card);
- card->options.cq = cq;
- rc = 0;
- }
-out:
- return rc;
+ if (card->options.cq == QETH_CQ_NOTAVAILABLE)
+ return -1;
+ card->options.cq = cq;
+ return 0;
}
EXPORT_SYMBOL_GPL(qeth_configure_cq);
@@ -5173,6 +5160,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
struct qdio_buffer **in_sbal_ptrs[QETH_MAX_IN_QUEUES];
struct qeth_qib_parms *qib_parms = NULL;
struct qdio_initialize init_data;
+ unsigned int no_input_qs = 1;
unsigned int i;
int rc = 0;
@@ -5187,8 +5175,10 @@ static int qeth_qdio_establish(struct qeth_card *card)
}
in_sbal_ptrs[0] = card->qdio.in_q->qdio_bufs;
- if (card->options.cq == QETH_CQ_ENABLED)
+ if (card->options.cq == QETH_CQ_ENABLED) {
in_sbal_ptrs[1] = card->qdio.c_q->qdio_bufs;
+ no_input_qs++;
+ }
for (i = 0; i < card->qdio.no_out_queues; i++)
out_sbal_ptrs[i] = card->qdio.out_qs[i]->qdio_bufs;
@@ -5198,7 +5188,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
QDIO_QETH_QFMT;
init_data.qib_param_field_format = 0;
init_data.qib_param_field = (void *)qib_parms;
- init_data.no_input_qs = card->qdio.no_in_queues;
+ init_data.no_input_qs = no_input_qs;
init_data.no_output_qs = card->qdio.no_out_queues;
init_data.input_handler = qeth_qdio_input_handler;
init_data.output_handler = qeth_qdio_output_handler;
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-13 01:19:48 +0000