qeth: remove needless IPA-commands in offline
If a qeth device is set offline, data and control subchannels are
cleared, which means removal of all IP Assist Primitive settings
implicitly. There is no need to delete those settings explicitly.
This patch removes all IP Assist invocations from offline.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index f47a714..c5d763e 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -741,7 +741,6 @@
/* QDIO buffer handling */
struct qeth_qdio_info qdio;
struct qeth_perf_stats perf_stats;
- int use_hard_stop;
int read_or_write_problem;
struct qeth_osn_info osn_info;
struct qeth_discipline discipline;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 019ae58..f3d98ac 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -302,12 +302,15 @@
int com = cmd->hdr.command;
ipa_name = qeth_get_ipa_cmd_name(com);
if (rc)
- QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
- ipa_name, com, QETH_CARD_IFNAME(card),
- rc, qeth_get_ipa_msg(rc));
+ QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
+ "x%X \"%s\"\n",
+ ipa_name, com, dev_name(&card->gdev->dev),
+ QETH_CARD_IFNAME(card), rc,
+ qeth_get_ipa_msg(rc));
else
- QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
- ipa_name, com, QETH_CARD_IFNAME(card));
+ QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
+ ipa_name, com, dev_name(&card->gdev->dev),
+ QETH_CARD_IFNAME(card));
}
static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
@@ -1083,7 +1086,6 @@
card->data.state = CH_STATE_DOWN;
card->state = CARD_STATE_DOWN;
card->lan_online = 0;
- card->use_hard_stop = 0;
card->read_or_write_problem = 0;
card->dev = NULL;
spin_lock_init(&card->vlanlock);
@@ -1732,20 +1734,22 @@
};
}
+ if (reply->rc == -EIO)
+ goto error;
rc = reply->rc;
qeth_put_reply(reply);
return rc;
time_err:
+ reply->rc = -ETIME;
spin_lock_irqsave(&reply->card->lock, flags);
list_del_init(&reply->list);
spin_unlock_irqrestore(&reply->card->lock, flags);
- reply->rc = -ETIME;
atomic_inc(&reply->received);
+error:
atomic_set(&card->write.irq_pending, 0);
qeth_release_buffer(iob->channel, iob);
card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
- wake_up(&reply->wait_q);
rc = reply->rc;
qeth_put_reply(reply);
return rc;
@@ -2490,45 +2494,19 @@
}
EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
-static int qeth_send_startstoplan(struct qeth_card *card,
- enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
+int qeth_send_startlan(struct qeth_card *card)
{
int rc;
struct qeth_cmd_buffer *iob;
- iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
- rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
-
- return rc;
-}
-
-int qeth_send_startlan(struct qeth_card *card)
-{
- int rc;
-
QETH_DBF_TEXT(SETUP, 2, "strtlan");
- rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
+ iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
+ rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
return rc;
}
EXPORT_SYMBOL_GPL(qeth_send_startlan);
-int qeth_send_stoplan(struct qeth_card *card)
-{
- int rc = 0;
-
- /*
- * TODO: according to the IPA format document page 14,
- * TCP/IP (we!) never issue a STOPLAN
- * is this right ?!?
- */
- QETH_DBF_TEXT(SETUP, 2, "stoplan");
-
- rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
- return rc;
-}
-EXPORT_SYMBOL_GPL(qeth_send_stoplan);
-
int qeth_default_setadapterparms_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
{
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index ada0fe7..6fbaacb 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -202,17 +202,19 @@
kfree(mc);
}
-static void qeth_l2_del_all_mc(struct qeth_card *card)
+static void qeth_l2_del_all_mc(struct qeth_card *card, int del)
{
struct qeth_mc_mac *mc, *tmp;
spin_lock_bh(&card->mclock);
list_for_each_entry_safe(mc, tmp, &card->mc_list, list) {
- if (mc->is_vmac)
- qeth_l2_send_setdelmac(card, mc->mc_addr,
+ if (del) {
+ if (mc->is_vmac)
+ qeth_l2_send_setdelmac(card, mc->mc_addr,
IPA_CMD_DELVMAC, NULL);
- else
- qeth_l2_send_delgroupmac(card, mc->mc_addr);
+ else
+ qeth_l2_send_delgroupmac(card, mc->mc_addr);
+ }
list_del(&mc->list);
kfree(mc);
}
@@ -288,18 +290,13 @@
qeth_l2_send_setdelvlan_cb, NULL);
}
-static void qeth_l2_process_vlans(struct qeth_card *card, int clear)
+static void qeth_l2_process_vlans(struct qeth_card *card)
{
struct qeth_vlan_vid *id;
QETH_CARD_TEXT(card, 3, "L2prcvln");
spin_lock_bh(&card->vlanlock);
list_for_each_entry(id, &card->vid_list, list) {
- if (clear)
- qeth_l2_send_setdelvlan(card, id->vid,
- IPA_CMD_DELVLAN);
- else
- qeth_l2_send_setdelvlan(card, id->vid,
- IPA_CMD_SETVLAN);
+ qeth_l2_send_setdelvlan(card, id->vid, IPA_CMD_SETVLAN);
}
spin_unlock_bh(&card->vlanlock);
}
@@ -379,19 +376,11 @@
dev_close(card->dev);
rtnl_unlock();
}
- if (!card->use_hard_stop ||
- recovery_mode) {
- __u8 *mac = &card->dev->dev_addr[0];
- rc = qeth_l2_send_delmac(card, mac);
- QETH_DBF_TEXT_(SETUP, 2, "Lerr%d", rc);
- }
+ card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
card->state = CARD_STATE_SOFTSETUP;
}
if (card->state == CARD_STATE_SOFTSETUP) {
- qeth_l2_process_vlans(card, 1);
- if (!card->use_hard_stop ||
- recovery_mode)
- qeth_l2_del_all_mc(card);
+ qeth_l2_del_all_mc(card, 0);
qeth_clear_ipacmd_list(card);
card->state = CARD_STATE_HARDSETUP;
}
@@ -405,7 +394,6 @@
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
- card->use_hard_stop = 0;
return rc;
}
@@ -705,7 +693,7 @@
if (qeth_threads_running(card, QETH_RECOVER_THREAD) &&
(card->state != CARD_STATE_UP))
return;
- qeth_l2_del_all_mc(card);
+ qeth_l2_del_all_mc(card, 1);
spin_lock_bh(&card->mclock);
netdev_for_each_mc_addr(ha, dev)
qeth_l2_add_mc(card, ha->addr, 0);
@@ -907,10 +895,8 @@
qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
- if (cgdev->state == CCWGROUP_ONLINE) {
- card->use_hard_stop = 1;
+ if (cgdev->state == CCWGROUP_ONLINE)
qeth_l2_set_offline(cgdev);
- }
if (card->dev) {
unregister_netdev(card->dev);
@@ -1040,7 +1026,7 @@
if (card->info.type != QETH_CARD_TYPE_OSN &&
card->info.type != QETH_CARD_TYPE_OSM)
- qeth_l2_process_vlans(card, 0);
+ qeth_l2_process_vlans(card);
netif_tx_disable(card->dev);
@@ -1076,7 +1062,6 @@
return 0;
out_remove:
- card->use_hard_stop = 1;
qeth_l2_stop_card(card, 0);
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
@@ -1144,7 +1129,6 @@
QETH_CARD_TEXT(card, 2, "recover2");
dev_warn(&card->gdev->dev,
"A recovery process has been started for the device\n");
- card->use_hard_stop = 1;
__qeth_l2_set_offline(card->gdev, 1);
rc = __qeth_l2_set_online(card->gdev, 1);
if (!rc)
@@ -1191,7 +1175,6 @@
if (gdev->state == CCWGROUP_OFFLINE)
return 0;
if (card->state == CARD_STATE_UP) {
- card->use_hard_stop = 1;
__qeth_l2_set_offline(card->gdev, 1);
} else
__qeth_l2_set_offline(card->gdev, 0);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index d09b0c4..6a9cc58 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -510,8 +510,7 @@
kfree(tbd_list);
}
-static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
- int recover)
+static void qeth_l3_clear_ip_list(struct qeth_card *card, int recover)
{
struct qeth_ipaddr *addr, *tmp;
unsigned long flags;
@@ -530,11 +529,6 @@
addr = list_entry(card->ip_list.next,
struct qeth_ipaddr, entry);
list_del_init(&addr->entry);
- if (clean) {
- spin_unlock_irqrestore(&card->ip_lock, flags);
- qeth_l3_deregister_addr_entry(card, addr);
- spin_lock_irqsave(&card->ip_lock, flags);
- }
if (!recover || addr->is_multicast) {
kfree(addr);
continue;
@@ -1611,29 +1605,6 @@
return 0;
}
-static int qeth_l3_put_unique_id(struct qeth_card *card)
-{
-
- int rc = 0;
- struct qeth_cmd_buffer *iob;
- struct qeth_ipa_cmd *cmd;
-
- QETH_CARD_TEXT(card, 2, "puniqeid");
-
- if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
- UNIQUE_ID_NOT_BY_CARD)
- return -1;
- iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
- QETH_PROT_IPV6);
- cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
- *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
- card->info.unique_id;
- memcpy(&cmd->data.create_destroy_addr.unique_id[0],
- card->dev->dev_addr, OSA_ADDR_LEN);
- rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
- return rc;
-}
-
static int qeth_l3_iqd_read_initial_mac_cb(struct qeth_card *card,
struct qeth_reply *reply, unsigned long data)
{
@@ -2324,25 +2295,14 @@
dev_close(card->dev);
rtnl_unlock();
}
- if (!card->use_hard_stop) {
- rc = qeth_send_stoplan(card);
- if (rc)
- QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
- }
card->state = CARD_STATE_SOFTSETUP;
}
if (card->state == CARD_STATE_SOFTSETUP) {
- qeth_l3_clear_ip_list(card, !card->use_hard_stop, 1);
+ qeth_l3_clear_ip_list(card, 1);
qeth_clear_ipacmd_list(card);
card->state = CARD_STATE_HARDSETUP;
}
if (card->state == CARD_STATE_HARDSETUP) {
- if (!card->use_hard_stop &&
- (card->info.type != QETH_CARD_TYPE_IQD)) {
- rc = qeth_l3_put_unique_id(card);
- if (rc)
- QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
- }
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
qeth_clear_working_pool_list(card);
@@ -2352,7 +2312,6 @@
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
- card->use_hard_stop = 0;
return rc;
}
@@ -3483,17 +3442,15 @@
qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
- if (cgdev->state == CCWGROUP_ONLINE) {
- card->use_hard_stop = 1;
+ if (cgdev->state == CCWGROUP_ONLINE)
qeth_l3_set_offline(cgdev);
- }
if (card->dev) {
unregister_netdev(card->dev);
card->dev = NULL;
}
- qeth_l3_clear_ip_list(card, 0, 0);
+ qeth_l3_clear_ip_list(card, 0);
qeth_l3_clear_ipato_list(card);
return;
}
@@ -3594,7 +3551,6 @@
mutex_unlock(&card->discipline_mutex);
return 0;
out_remove:
- card->use_hard_stop = 1;
qeth_l3_stop_card(card, 0);
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
@@ -3663,7 +3619,6 @@
QETH_CARD_TEXT(card, 2, "recover2");
dev_warn(&card->gdev->dev,
"A recovery process has been started for the device\n");
- card->use_hard_stop = 1;
__qeth_l3_set_offline(card->gdev, 1);
rc = __qeth_l3_set_online(card->gdev, 1);
if (!rc)
@@ -3684,7 +3639,6 @@
static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
- qeth_l3_clear_ip_list(card, 0, 0);
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
}
@@ -3700,7 +3654,6 @@
if (gdev->state == CCWGROUP_OFFLINE)
return 0;
if (card->state == CARD_STATE_UP) {
- card->use_hard_stop = 1;
__qeth_l3_set_offline(card->gdev, 1);
} else
__qeth_l3_set_offline(card->gdev, 0);