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authorUrsula Braun <ursula.braun@de.ibm.com>2011-02-26 22:41:36 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-26 22:41:36 -0800
commit70919e23ac35c9c244dfd73f97312894cae7d65f (patch)
tree019e8dcd19402ec49898d7b00970960d0cbced33
parent4c93fbb0626080d196fb461c859b24a1feec3270 (diff)
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>
-rw-r--r--drivers/s390/net/qeth_core.h1
-rw-r--r--drivers/s390/net/qeth_core_main.c52
-rw-r--r--drivers/s390/net/qeth_l2_main.c45
-rw-r--r--drivers/s390/net/qeth_l3_main.c55
4 files changed, 33 insertions, 120 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index f47a714538d..c5d763ed406 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -741,7 +741,6 @@ struct qeth_card {
/* 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 019ae58ab91..f3d98ac16e9 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -302,12 +302,15 @@ static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
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 @@ static int qeth_setup_card(struct qeth_card *card)
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 @@ int qeth_send_control_data(struct qeth_card *card, int len,
};
}
+ 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 @@ int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
}
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 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;
+ struct qeth_cmd_buffer *iob;
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 ada0fe78237..6fbaacb2194 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -202,17 +202,19 @@ static void qeth_l2_add_mc(struct qeth_card *card, __u8 *mac, int vmac)
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 @@ static int qeth_l2_send_setdelvlan(struct qeth_card *card, __u16 i,
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 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
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 @@ static int qeth_l2_stop_card(struct qeth_card *card, int recovery_mode)
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
- card->use_hard_stop = 0;
return rc;
}
@@ -705,7 +693,7 @@ static void qeth_l2_set_multicast_list(struct net_device *dev)
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 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev)
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 @@ contin:
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 @@ contin:
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 @@ static int qeth_l2_recover(void *ptr)
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 @@ static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
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 d09b0c44fc3..6a9cc58321a 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -510,8 +510,7 @@ static void qeth_l3_set_ip_addr_list(struct qeth_card *card)
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 @@ static void qeth_l3_clear_ip_list(struct qeth_card *card, int clean,
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 @@ static int qeth_l3_start_ipassists(struct qeth_card *card)
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 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
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 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode)
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
- card->use_hard_stop = 0;
return rc;
}
@@ -3483,17 +3442,15 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
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 @@ contin:
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 @@ static int qeth_l3_recover(void *ptr)
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 int qeth_l3_recover(void *ptr)
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 @@ static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
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);