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path: root/drivers/s390/net/qeth_core_main.c
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Diffstat (limited to 'drivers/s390/net/qeth_core_main.c')
-rw-r--r--drivers/s390/net/qeth_core_main.c103
1 files changed, 56 insertions, 47 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index cf18d87da41e..89b223885b0c 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -825,7 +825,8 @@ static bool qeth_next_hop_is_local_v4(struct qeth_card *card,
return false;
rcu_read_lock();
- next_hop = qeth_next_hop_v4_rcu(skb, qeth_dst_check_rcu(skb, 4));
+ next_hop = qeth_next_hop_v4_rcu(skb,
+ qeth_dst_check_rcu(skb, htons(ETH_P_IP)));
key = ipv4_addr_hash(next_hop);
hash_for_each_possible_rcu(card->local_addrs4, tmp, hnode, key) {
@@ -851,7 +852,8 @@ static bool qeth_next_hop_is_local_v6(struct qeth_card *card,
return false;
rcu_read_lock();
- next_hop = qeth_next_hop_v6_rcu(skb, qeth_dst_check_rcu(skb, 6));
+ next_hop = qeth_next_hop_v6_rcu(skb,
+ qeth_dst_check_rcu(skb, htons(ETH_P_IPV6)));
key = ipv6_addr_hash(next_hop);
hash_for_each_possible_rcu(card->local_addrs6, tmp, hnode, key) {
@@ -1407,10 +1409,12 @@ static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
struct sk_buff *skb;
skb_queue_walk(&buf->skb_list, skb) {
+ struct sock *sk = skb->sk;
+
QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
- if (skb->sk && skb->sk->sk_family == PF_IUCV)
- iucv_sk(skb->sk)->sk_txnotify(skb, notification);
+ if (sk && sk->sk_family == PF_IUCV)
+ iucv_sk(sk)->sk_txnotify(sk, notification);
}
}
@@ -3690,24 +3694,27 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
queue->queue_no, index, count);
- /* Fake the TX completion interrupt: */
- if (IS_IQD(card)) {
- unsigned int frames = READ_ONCE(queue->max_coalesced_frames);
- unsigned int usecs = READ_ONCE(queue->coalesce_usecs);
+ switch (rc) {
+ case 0:
+ case -ENOBUFS:
+ /* ignore temporary SIGA errors without busy condition */
- if (frames && queue->coalesced_frames >= frames) {
- napi_schedule(&queue->napi);
- queue->coalesced_frames = 0;
- QETH_TXQ_STAT_INC(queue, coal_frames);
- } else if (usecs) {
- qeth_tx_arm_timer(queue, usecs);
+ /* Fake the TX completion interrupt: */
+ if (IS_IQD(card)) {
+ unsigned int frames = READ_ONCE(queue->max_coalesced_frames);
+ unsigned int usecs = READ_ONCE(queue->coalesce_usecs);
+
+ if (frames && queue->coalesced_frames >= frames) {
+ napi_schedule(&queue->napi);
+ queue->coalesced_frames = 0;
+ QETH_TXQ_STAT_INC(queue, coal_frames);
+ } else if (usecs) {
+ qeth_tx_arm_timer(queue, usecs);
+ }
}
- }
- if (rc) {
- /* ignore temporary SIGA errors without busy condition */
- if (rc == -ENOBUFS)
- return;
+ break;
+ default:
QETH_CARD_TEXT(queue->card, 2, "flushbuf");
QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
@@ -3717,7 +3724,6 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
/* this must not happen under normal circumstances. if it
* happens something is really wrong -> recover */
qeth_schedule_recovery(queue->card);
- return;
}
}
@@ -3896,11 +3902,11 @@ int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb)
switch (card->qdio.do_prio_queueing) {
case QETH_PRIO_Q_ING_TOS:
case QETH_PRIO_Q_ING_PREC:
- switch (qeth_get_ip_version(skb)) {
- case 4:
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
tos = ipv4_get_dsfield(ip_hdr(skb));
break;
- case 6:
+ case htons(ETH_P_IPV6):
tos = ipv6_get_dsfield(ipv6_hdr(skb));
break;
default:
@@ -4365,10 +4371,10 @@ static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr,
}
int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
- struct qeth_qdio_out_q *queue, int ipv,
+ struct qeth_qdio_out_q *queue, __be16 proto,
void (*fill_header)(struct qeth_qdio_out_q *queue,
struct qeth_hdr *hdr, struct sk_buff *skb,
- int ipv, unsigned int data_len))
+ __be16 proto, unsigned int data_len))
{
unsigned int proto_len, hw_hdr_len;
unsigned int frame_len = skb->len;
@@ -4401,7 +4407,7 @@ int qeth_xmit(struct qeth_card *card, struct sk_buff *skb,
data_offset = push_len + proto_len;
}
memset(hdr, 0, hw_hdr_len);
- fill_header(queue, hdr, skb, ipv, frame_len);
+ fill_header(queue, hdr, skb, proto, frame_len);
if (is_tso)
qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr,
frame_len - proto_len, skb, proto_len);
@@ -6349,9 +6355,11 @@ static int qeth_register_dbf_views(void)
static DEFINE_MUTEX(qeth_mod_mutex); /* for synchronized module loading */
-int qeth_core_load_discipline(struct qeth_card *card,
- enum qeth_discipline_id discipline)
+int qeth_setup_discipline(struct qeth_card *card,
+ enum qeth_discipline_id discipline)
{
+ int rc;
+
mutex_lock(&qeth_mod_mutex);
switch (discipline) {
case QETH_DISCIPLINE_LAYER3:
@@ -6373,12 +6381,25 @@ int qeth_core_load_discipline(struct qeth_card *card,
return -EINVAL;
}
+ rc = card->discipline->setup(card->gdev);
+ if (rc) {
+ if (discipline == QETH_DISCIPLINE_LAYER2)
+ symbol_put(qeth_l2_discipline);
+ else
+ symbol_put(qeth_l3_discipline);
+ card->discipline = NULL;
+
+ return rc;
+ }
+
card->options.layer = discipline;
return 0;
}
-void qeth_core_free_discipline(struct qeth_card *card)
+void qeth_remove_discipline(struct qeth_card *card)
{
+ card->discipline->remove(card->gdev);
+
if (IS_LAYER2(card))
symbol_put(qeth_l2_discipline);
else
@@ -6586,23 +6607,18 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
default:
card->info.layer_enforced = true;
/* It's so early that we don't need the discipline_mutex yet. */
- rc = qeth_core_load_discipline(card, enforced_disc);
+ rc = qeth_setup_discipline(card, enforced_disc);
if (rc)
- goto err_load;
+ goto err_setup_disc;
gdev->dev.type = IS_OSN(card) ? &qeth_osn_devtype :
card->discipline->devtype;
- rc = card->discipline->setup(card->gdev);
- if (rc)
- goto err_disc;
break;
}
return 0;
-err_disc:
- qeth_core_free_discipline(card);
-err_load:
+err_setup_disc:
err_chp_desc:
free_netdev(card->dev);
err_card:
@@ -6619,10 +6635,8 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
QETH_CARD_TEXT(card, 2, "removedv");
mutex_lock(&card->discipline_mutex);
- if (card->discipline) {
- card->discipline->remove(gdev);
- qeth_core_free_discipline(card);
- }
+ if (card->discipline)
+ qeth_remove_discipline(card);
mutex_unlock(&card->discipline_mutex);
qeth_free_qdio_queues(card);
@@ -6642,14 +6656,9 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
if (!card->discipline) {
def_discipline = IS_IQD(card) ? QETH_DISCIPLINE_LAYER3 :
QETH_DISCIPLINE_LAYER2;
- rc = qeth_core_load_discipline(card, def_discipline);
+ rc = qeth_setup_discipline(card, def_discipline);
if (rc)
goto err;
- rc = card->discipline->setup(card->gdev);
- if (rc) {
- qeth_core_free_discipline(card);
- goto err;
- }
}
rc = qeth_set_online(card, card->discipline);
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