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Merge branch 's390-net-next' 

Julian Wiedmann says:

====================
s390/net: updates 2018-09-26

please apply one more series of cleanups and small improvements for qeth
to net-next. Note that one patch needs to touch both af_iucv and qeth, in
order to untangle their receive paths.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-09-26 09:56:08 -07:00
parent 4b1bd69769 91cc98f51e
commit 37ac5db6e6
7 changed files with 202 additions and 294 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/s390/net/qeth_core.h
View File

@ -582,7 +582,8 @@ struct qeth_cmd_buffer {
struct qeth_channel *channel;
unsigned char *data;
int rc;
void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
void (*callback)(struct qeth_card *card, struct qeth_channel *channel,
struct qeth_cmd_buffer *iob);
};
static inline struct qeth_ipa_cmd *__ipa_cmd(struct qeth_cmd_buffer *iob)
@ -671,6 +672,12 @@ struct qeth_card_info {
__u32 hwtrap;
};
enum qeth_discipline_id {
QETH_DISCIPLINE_UNDETERMINED = -1,
QETH_DISCIPLINE_LAYER3 = 0,
QETH_DISCIPLINE_LAYER2 = 1,
};
struct qeth_card_options {
struct qeth_routing_info route4;
struct qeth_ipa_info ipa4;
@ -680,7 +687,7 @@ struct qeth_card_options {
struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
struct qeth_vnicc_info vnicc; /* VNICC options */
int fake_broadcast;
int layer2;
enum qeth_discipline_id layer;
int performance_stats;
int rx_sg_cb;
enum qeth_ipa_isolation_modes isolation;
@ -690,6 +697,9 @@ struct qeth_card_options {
char hsuid[9];
};
#define IS_LAYER2(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER2)
#define IS_LAYER3(card) ((card)->options.layer == QETH_DISCIPLINE_LAYER3)
/*
* thread bits for qeth_card thread masks
*/
@ -702,12 +712,6 @@ struct qeth_osn_info {
int (*data_cb)(struct sk_buff *skb);
};
enum qeth_discipline_id {
QETH_DISCIPLINE_UNDETERMINED = -1,
QETH_DISCIPLINE_LAYER3 = 0,
QETH_DISCIPLINE_LAYER2 = 1,
};
struct qeth_discipline {
const struct device_type *devtype;
int (*process_rx_buffer)(struct qeth_card *card, int budget, int *done);
@ -759,7 +763,6 @@ struct qeth_switch_info {
struct qeth_card {
struct list_head list;
enum qeth_card_states state;
int lan_online;
spinlock_t lock;
struct ccwgroup_device *gdev;
struct qeth_channel read;

377
drivers/s390/net/qeth_core_main.c
View File

@ -62,10 +62,10 @@ static struct kmem_cache *qeth_qdio_outbuf_cache;
static struct device *qeth_core_root_dev;
static struct lock_class_key qdio_out_skb_queue_key;
static struct mutex qeth_mod_mutex;
static void qeth_send_control_data_cb(struct qeth_channel *,
struct qeth_cmd_buffer *);
static void qeth_send_control_data_cb(struct qeth_card *card,
struct qeth_channel *channel,
struct qeth_cmd_buffer *iob);
static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
static void qeth_free_buffer_pool(struct qeth_card *);
static int qeth_qdio_establish(struct qeth_card *);
@ -626,80 +626,61 @@ static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
}
static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
struct qeth_cmd_buffer *iob)
struct qeth_ipa_cmd *cmd)
{
struct qeth_ipa_cmd *cmd = NULL;
QETH_CARD_TEXT(card, 5, "chkipad");
if (IS_IPA(iob->data)) {
cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
if (IS_IPA_REPLY(cmd)) {
if (cmd->hdr.command != IPA_CMD_SETCCID &&
cmd->hdr.command != IPA_CMD_DELCCID &&
cmd->hdr.command != IPA_CMD_MODCCID &&
cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
qeth_issue_ipa_msg(cmd,
cmd->hdr.return_code, card);
return cmd;
} else {
switch (cmd->hdr.command) {
case IPA_CMD_STOPLAN:
if (cmd->hdr.return_code ==
IPA_RC_VEPA_TO_VEB_TRANSITION) {
dev_err(&card->gdev->dev,
"Interface %s is down because the "
"adjacent port is no longer in "
"reflective relay mode\n",
QETH_CARD_IFNAME(card));
qeth_close_dev(card);
} else {
dev_warn(&card->gdev->dev,
"The link for interface %s on CHPID"
" 0x%X failed\n",
QETH_CARD_IFNAME(card),
card->info.chpid);
qeth_issue_ipa_msg(cmd,
cmd->hdr.return_code, card);
}
card->lan_online = 0;
netif_carrier_off(card->dev);
return NULL;
case IPA_CMD_STARTLAN:
dev_info(&card->gdev->dev,
"The link for %s on CHPID 0x%X has"
" been restored\n",
QETH_CARD_IFNAME(card),
card->info.chpid);
netif_carrier_on(card->dev);
card->lan_online = 1;
if (card->info.hwtrap)
card->info.hwtrap = 2;
qeth_schedule_recovery(card);
return NULL;
case IPA_CMD_SETBRIDGEPORT_IQD:
case IPA_CMD_SETBRIDGEPORT_OSA:
case IPA_CMD_ADDRESS_CHANGE_NOTIF:
if (card->discipline->control_event_handler
(card, cmd))
return cmd;
else
return NULL;
case IPA_CMD_MODCCID:
return cmd;
case IPA_CMD_REGISTER_LOCAL_ADDR:
QETH_CARD_TEXT(card, 3, "irla");
break;
case IPA_CMD_UNREGISTER_LOCAL_ADDR:
QETH_CARD_TEXT(card, 3, "urla");
break;
default:
QETH_DBF_MESSAGE(2, "Received data is IPA "
"but not a reply!\n");
break;
}
}
if (IS_IPA_REPLY(cmd)) {
if (cmd->hdr.command != IPA_CMD_SETCCID &&
cmd->hdr.command != IPA_CMD_DELCCID &&
cmd->hdr.command != IPA_CMD_MODCCID &&
cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card);
return cmd;
}
/* handle unsolicited event: */
switch (cmd->hdr.command) {
case IPA_CMD_STOPLAN:
if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) {
dev_err(&card->gdev->dev,
"Interface %s is down because the adjacent port is no longer in reflective relay mode\n",
QETH_CARD_IFNAME(card));
qeth_close_dev(card);
} else {
dev_warn(&card->gdev->dev,
"The link for interface %s on CHPID 0x%X failed\n",
QETH_CARD_IFNAME(card), card->info.chpid);
qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card);
netif_carrier_off(card->dev);
}
return NULL;
case IPA_CMD_STARTLAN:
dev_info(&card->gdev->dev,
"The link for %s on CHPID 0x%X has been restored\n",
QETH_CARD_IFNAME(card), card->info.chpid);
if (card->info.hwtrap)
card->info.hwtrap = 2;
qeth_schedule_recovery(card);
return NULL;
case IPA_CMD_SETBRIDGEPORT_IQD:
case IPA_CMD_SETBRIDGEPORT_OSA:
case IPA_CMD_ADDRESS_CHANGE_NOTIF:
if (card->discipline->control_event_handler(card, cmd))
return cmd;
return NULL;
case IPA_CMD_MODCCID:
return cmd;
case IPA_CMD_REGISTER_LOCAL_ADDR:
QETH_CARD_TEXT(card, 3, "irla");
return NULL;
case IPA_CMD_UNREGISTER_LOCAL_ADDR:
QETH_CARD_TEXT(card, 3, "urla");
return NULL;
default:
QETH_DBF_MESSAGE(2, "Received data is IPA but not a reply!\n");
return cmd;
}
return cmd;
}
void qeth_clear_ipacmd_list(struct qeth_card *card)
@ -746,18 +727,10 @@ static int qeth_check_idx_response(struct qeth_card *card,
return 0;
}
static struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
{
struct qeth_card *card = dev_get_drvdata(&((struct ccwgroup_device *)
dev_get_drvdata(&cdev->dev))->dev);
return card;
}
static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
{
__u8 index;
QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
index = channel->io_buf_no;
do {
if (channel->iob[index].state == BUF_STATE_FREE) {
@ -778,7 +751,6 @@ void qeth_release_buffer(struct qeth_channel *channel,
{
unsigned long flags;
QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
spin_lock_irqsave(&channel->iob_lock, flags);
iob->state = BUF_STATE_FREE;
iob->callback = qeth_send_control_data_cb;
@ -788,6 +760,13 @@ void qeth_release_buffer(struct qeth_channel *channel,
}
EXPORT_SYMBOL_GPL(qeth_release_buffer);
static void qeth_release_buffer_cb(struct qeth_card *card,
struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
{
qeth_release_buffer(channel, iob);
}
static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
{
struct qeth_cmd_buffer *buffer = NULL;
@ -818,17 +797,16 @@ void qeth_clear_cmd_buffers(struct qeth_channel *channel)
}
EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
static void qeth_send_control_data_cb(struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
static void qeth_send_control_data_cb(struct qeth_card *card,
struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
{
struct qeth_card *card;
struct qeth_ipa_cmd *cmd = NULL;
struct qeth_reply *reply, *r;
struct qeth_ipa_cmd *cmd;
unsigned long flags;
int keep_reply;
int rc = 0;
card = CARD_FROM_CDEV(channel->ccwdev);
QETH_CARD_TEXT(card, 4, "sndctlcb");
rc = qeth_check_idx_response(card, iob->data);
switch (rc) {
@ -842,16 +820,20 @@ static void qeth_send_control_data_cb(struct qeth_channel *channel,
goto out;
}
cmd = qeth_check_ipa_data(card, iob);
if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
goto out;
/*in case of OSN : check if cmd is set */
if (card->info.type == QETH_CARD_TYPE_OSN &&
cmd &&
cmd->hdr.command != IPA_CMD_STARTLAN &&
card->osn_info.assist_cb != NULL) {
card->osn_info.assist_cb(card->dev, cmd);
goto out;
if (IS_IPA(iob->data)) {
cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
cmd = qeth_check_ipa_data(card, cmd);
if (!cmd)
goto out;
if (IS_OSN(card) && card->osn_info.assist_cb &&
cmd->hdr.command != IPA_CMD_STARTLAN) {
card->osn_info.assist_cb(card->dev, cmd);
goto out;
}
} else {
/* non-IPA commands should only flow during initialization */
if (card->state != CARD_STATE_DOWN)
goto out;
}
spin_lock_irqsave(&card->lock, flags);
@ -974,16 +956,15 @@ void qeth_schedule_recovery(struct qeth_card *card)
}
EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
static int qeth_get_problem(struct qeth_card *card, struct ccw_device *cdev,
struct irb *irb)
{
int dstat, cstat;
char *sense;
struct qeth_card *card;
sense = (char *) irb->ecw;
cstat = irb->scsw.cmd.cstat;
dstat = irb->scsw.cmd.dstat;
card = CARD_FROM_CDEV(cdev);
if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
@ -1023,14 +1004,11 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
return 0;
}
static long __qeth_check_irb_error(struct ccw_device *cdev,
unsigned long intparm, struct irb *irb)
static long qeth_check_irb_error(struct qeth_card *card,
struct ccw_device *cdev, unsigned long intparm,
struct irb *irb)
{
struct qeth_card *card;
card = CARD_FROM_CDEV(cdev);
if (!card || !IS_ERR(irb))
if (!IS_ERR(irb))
return 0;
switch (PTR_ERR(irb)) {
@ -1067,10 +1045,13 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
int rc;
int cstat, dstat;
struct qeth_cmd_buffer *iob = NULL;
struct ccwgroup_device *gdev;
struct qeth_channel *channel;
struct qeth_card *card;
card = CARD_FROM_CDEV(cdev);
/* while we hold the ccwdev lock, this stays valid: */
gdev = dev_get_drvdata(&cdev->dev);
card = dev_get_drvdata(&gdev->dev);
if (!card)
return;
@ -1090,7 +1071,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
if (qeth_intparm_is_iob(intparm))
iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
if (__qeth_check_irb_error(cdev, intparm, irb)) {
if (qeth_check_irb_error(card, cdev, intparm, irb)) {
/* IO was terminated, free its resources. */
if (iob)
qeth_release_buffer(iob->channel, iob);
@ -1145,7 +1126,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
channel->state = CH_STATE_DOWN;
goto out;
}
rc = qeth_get_problem(cdev, irb);
rc = qeth_get_problem(card, cdev, irb);
if (rc) {
card->read_or_write_problem = 1;
qeth_clear_ipacmd_list(card);
@ -1165,7 +1146,7 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
__qeth_issue_next_read(card);
if (iob && iob->callback)
iob->callback(iob->channel, iob);
iob->callback(card, iob->channel, iob);
out:
wake_up(&card->wait_q);
@ -1178,54 +1159,23 @@ static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
{
struct sk_buff *skb;
if (skb_queue_empty(&buf->skb_list))
goto out;
skb = skb_peek(&buf->skb_list);
while (skb) {
skb_queue_walk(&buf->skb_list, skb) {
QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
if (be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) {
if (skb->sk) {
struct iucv_sock *iucv = iucv_sk(skb->sk);
iucv->sk_txnotify(skb, notification);
}
}
if (skb_queue_is_last(&buf->skb_list, skb))
skb = NULL;
else
skb = skb_queue_next(&buf->skb_list, skb);
if (skb->protocol == htons(ETH_P_AF_IUCV) && skb->sk)
iucv_sk(skb->sk)->sk_txnotify(skb, notification);
}
out:
return;
}
static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
{
struct sk_buff *skb;
struct iucv_sock *iucv;
int notify_general_error = 0;
if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
notify_general_error = 1;
/* release may never happen from within CQ tasklet scope */
WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
skb = skb_dequeue(&buf->skb_list);
while (skb) {
QETH_CARD_TEXT(buf->q->card, 5, "skbr");
QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
if (notify_general_error &&
be16_to_cpu(skb->protocol) == ETH_P_AF_IUCV) {
if (skb->sk) {
iucv = iucv_sk(skb->sk);
iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
}
}
refcount_dec(&skb->users);
dev_kfree_skb_any(skb);
skb = skb_dequeue(&buf->skb_list);
}
if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
qeth_notify_skbs(buf->q, buf, TX_NOTIFY_GENERALERROR);
__skb_queue_purge(&buf->skb_list);
}
static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
@ -1429,6 +1379,7 @@ static void qeth_set_initial_options(struct qeth_card *card)
card->options.rx_sg_cb = QETH_RX_SG_CB;
card->options.isolation = ISOLATION_MODE_NONE;
card->options.cq = QETH_CQ_DISABLED;
card->options.layer = QETH_DISCIPLINE_UNDETERMINED;
}
static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
@ -1513,6 +1464,7 @@ static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev)
QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
card->gdev = gdev;
dev_set_drvdata(&gdev->dev, card);
CARD_RDEV(card) = gdev->cdev[0];
CARD_WDEV(card) = gdev->cdev[1];
CARD_DDEV(card) = gdev->cdev[2];
@ -1522,7 +1474,6 @@ static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev)
goto out_channel;
if (qeth_setup_channel(&card->data, false))
goto out_data;
card->options.layer2 = -1;
card->qeth_service_level.seq_print = qeth_core_sl_print;
register_service_level(&card->qeth_service_level);
return card;
@ -1532,17 +1483,17 @@ out_data:
out_channel:
qeth_clean_channel(&card->read);
out_ip:
dev_set_drvdata(&gdev->dev, NULL);
kfree(card);
out:
return NULL;
}
static int qeth_clear_channel(struct qeth_channel *channel)
static int qeth_clear_channel(struct qeth_card *card,
struct qeth_channel *channel)
{
struct qeth_card *card;
int rc;
card = CARD_FROM_CDEV(channel->ccwdev);
QETH_CARD_TEXT(card, 3, "clearch");
spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
@ -1560,12 +1511,11 @@ static int qeth_clear_channel(struct qeth_channel *channel)
return 0;
}
static int qeth_halt_channel(struct qeth_channel *channel)
static int qeth_halt_channel(struct qeth_card *card,
struct qeth_channel *channel)
{
struct qeth_card *card;
int rc;
card = CARD_FROM_CDEV(channel->ccwdev);
QETH_CARD_TEXT(card, 3, "haltch");
spin_lock_irq(get_ccwdev_lock(channel->ccwdev));
rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
@ -1587,9 +1537,9 @@ static int qeth_halt_channels(struct qeth_card *card)
int rc1 = 0, rc2 = 0, rc3 = 0;
QETH_CARD_TEXT(card, 3, "haltchs");
rc1 = qeth_halt_channel(&card->read);
rc2 = qeth_halt_channel(&card->write);
rc3 = qeth_halt_channel(&card->data);
rc1 = qeth_halt_channel(card, &card->read);
rc2 = qeth_halt_channel(card, &card->write);
rc3 = qeth_halt_channel(card, &card->data);
if (rc1)
return rc1;
if (rc2)
@ -1602,9 +1552,9 @@ static int qeth_clear_channels(struct qeth_card *card)
int rc1 = 0, rc2 = 0, rc3 = 0;
QETH_CARD_TEXT(card, 3, "clearchs");
rc1 = qeth_clear_channel(&card->read);
rc2 = qeth_clear_channel(&card->write);
rc3 = qeth_clear_channel(&card->data);
rc1 = qeth_clear_channel(card, &card->read);
rc2 = qeth_clear_channel(card, &card->write);
rc3 = qeth_clear_channel(card, &card->data);
if (rc1)
return rc1;
if (rc2)
@ -1833,20 +1783,20 @@ static void qeth_init_func_level(struct qeth_card *card)
}
}
static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
void (*idx_reply_cb)(struct qeth_channel *,
struct qeth_cmd_buffer *))
static int qeth_idx_activate_get_answer(struct qeth_card *card,
struct qeth_channel *channel,
void (*reply_cb)(struct qeth_card *,
struct qeth_channel *,
struct qeth_cmd_buffer *))
{
struct qeth_cmd_buffer *iob;
int rc;
struct qeth_card *card;
QETH_DBF_TEXT(SETUP, 2, "idxanswr");
card = CARD_FROM_CDEV(channel->ccwdev);
iob = qeth_get_buffer(channel);
if (!iob)
return -ENOMEM;
iob->callback = idx_reply_cb;
iob->callback = reply_cb;
qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data);
wait_event(card->wait_q,
@ -1876,25 +1826,24 @@ static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
return rc;
}
static int qeth_idx_activate_channel(struct qeth_channel *channel,
void (*idx_reply_cb)(struct qeth_channel *,
struct qeth_cmd_buffer *))
static int qeth_idx_activate_channel(struct qeth_card *card,
struct qeth_channel *channel,
void (*reply_cb)(struct qeth_card *,
struct qeth_channel *,
struct qeth_cmd_buffer *))
{
struct qeth_card *card;
struct qeth_cmd_buffer *iob;
__u16 temp;
__u8 tmp;
int rc;
struct ccw_dev_id temp_devid;
card = CARD_FROM_CDEV(channel->ccwdev);
QETH_DBF_TEXT(SETUP, 2, "idxactch");
iob = qeth_get_buffer(channel);
if (!iob)
return -ENOMEM;
iob->callback = idx_reply_cb;
iob->callback = reply_cb;
qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE,
iob->data);
if (channel == &card->write) {
@ -1946,7 +1895,7 @@ static int qeth_idx_activate_channel(struct qeth_channel *channel,
QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
return -ETIME;
}
return qeth_idx_activate_get_answer(channel, idx_reply_cb);
return qeth_idx_activate_get_answer(card, channel, reply_cb);
}
static int qeth_peer_func_level(int level)
@ -1958,10 +1907,10 @@ static int qeth_peer_func_level(int level)
return level;
}
static void qeth_idx_write_cb(struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
static void qeth_idx_write_cb(struct qeth_card *card,
struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
{
struct qeth_card *card;
__u16 temp;
QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
@ -1970,7 +1919,6 @@ static void qeth_idx_write_cb(struct qeth_channel *channel,
channel->state = CH_STATE_ACTIVATING;
goto out;
}
card = CARD_FROM_CDEV(channel->ccwdev);
if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
@ -1996,10 +1944,10 @@ out:
qeth_release_buffer(channel, iob);
}
static void qeth_idx_read_cb(struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
static void qeth_idx_read_cb(struct qeth_card *card,
struct qeth_channel *channel,
struct qeth_cmd_buffer *iob)
{
struct qeth_card *card;
__u16 temp;
QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
@ -2008,7 +1956,6 @@ static void qeth_idx_read_cb(struct qeth_channel *channel,
goto out;
}
card = CARD_FROM_CDEV(channel->ccwdev);
if (qeth_check_idx_response(card, iob->data))
goto out;
@ -2057,7 +2004,7 @@ void qeth_prepare_control_data(struct qeth_card *card, int len,
struct qeth_cmd_buffer *iob)
{
qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data);
iob->callback = qeth_release_buffer;
iob->callback = qeth_release_buffer_cb;
memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
&card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
@ -2205,7 +2152,6 @@ static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
memcpy(&card->token.cm_filter_r,
QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
QETH_MPC_TOKEN_LENGTH);
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
return 0;
}
@ -2231,7 +2177,6 @@ static int qeth_cm_enable(struct qeth_card *card)
static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
unsigned long data)
{
struct qeth_cmd_buffer *iob;
QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
@ -2240,7 +2185,6 @@ static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
memcpy(&card->token.cm_connection_r,
QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
QETH_MPC_TOKEN_LENGTH);
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
return 0;
}
@ -2262,7 +2206,6 @@ static int qeth_cm_setup(struct qeth_card *card)
rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
qeth_cm_setup_cb, NULL);
return rc;
}
static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu)
@ -2291,7 +2234,7 @@ static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu)
if (dev->mtu)
new_mtu = dev->mtu;
/* default MTUs for first setup: */
else if (card->options.layer2)
else if (IS_LAYER2(card))
new_mtu = ETH_DATA_LEN;
else
new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */
@ -2322,7 +2265,6 @@ static int qeth_get_mtu_outof_framesize(int framesize)
static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
unsigned long data)
{
__u16 mtu, framesize;
__u16 len;
__u8 link_type;
@ -2350,7 +2292,6 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
} else
card->info.link_type = 0;
QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc);
return 0;
}
@ -2358,7 +2299,7 @@ static u8 qeth_mpc_select_prot_type(struct qeth_card *card)
{
if (IS_OSN(card))
return QETH_PROT_OSN2;
return (card->options.layer2 == 1) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP;
return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP;
}
static int qeth_ulp_enable(struct qeth_card *card)
@ -2896,10 +2837,7 @@ static void qeth_fill_ipacmd_header(struct qeth_card *card,
/* cmd->hdr.seqno is set by qeth_send_control_data() */
cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port;
if (card->options.layer2)
cmd->hdr.prim_version_no = 2;
else
cmd->hdr.prim_version_no = 1;
cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1;
cmd->hdr.param_count = 1;
cmd->hdr.prot_version = prot;
}
@ -4001,8 +3939,7 @@ static int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
bool is_first_elem = true;
int flush_cnt = 0;
refcount_inc(&skb->users);
skb_queue_tail(&buf->skb_list, skb);
__skb_queue_tail(&buf->skb_list, skb);
/* build dedicated header element */
if (hd_len) {
@ -4278,8 +4215,7 @@ static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
if (qeth_setadpparms_inspect_rc(cmd))
return 0;
if (!card->options.layer2 ||
!(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
if (IS_LAYER3(card) || !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
ether_addr_copy(card->dev->dev_addr,
cmd->data.setadapterparms.data.change_addr.addr);
card->info.mac_bits |= QETH_LAYER2_MAC_READ;
@ -4633,9 +4569,9 @@ static int qeth_snmp_command(struct qeth_card *card, char __user *udata)
return -EOPNOTSUPP;
if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
(!card->options.layer2)) {
IS_LAYER3(card))
return -EOPNOTSUPP;
}
/* skip 4 bytes (data_len struct member) to get req_len */
if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
return -EFAULT;
@ -5079,6 +5015,7 @@ static void qeth_core_free_card(struct qeth_card *card)
qeth_clean_channel(&card->data);
qeth_free_qdio_buffers(card);
unregister_service_level(&card->qeth_service_level);
dev_set_drvdata(&card->gdev->dev, NULL);
kfree(card);
}
@ -5158,7 +5095,7 @@ retriable:
qeth_determine_capabilities(card);
qeth_init_tokens(card);
qeth_init_func_level(card);
rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
rc = qeth_idx_activate_channel(card, &card->read, qeth_idx_read_cb);
if (rc == -ERESTARTSYS) {
QETH_DBF_TEXT(SETUP, 2, "break2");
return rc;
@ -5169,7 +5106,7 @@ retriable:
else
goto retry;
}
rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
rc = qeth_idx_activate_channel(card, &card->write, qeth_idx_write_cb);
if (rc == -ERESTARTSYS) {
QETH_DBF_TEXT(SETUP, 2, "break3");
return rc;
@ -5193,13 +5130,14 @@ retriable:
if (rc == IPA_RC_LAN_OFFLINE) {
dev_warn(&card->gdev->dev,
"The LAN is offline\n");
card->lan_online = 0;
netif_carrier_off(card->dev);
} else {
rc = -ENODEV;
goto out;
}
} else
card->lan_online = 1;
} else {
netif_carrier_on(card->dev);
}
card->options.ipa4.supported_funcs = 0;
card->options.ipa6.supported_funcs = 0;
@ -5593,11 +5531,11 @@ static int qeth_register_dbf_views(void)
return 0;
}
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 rc = 0;
mutex_lock(&qeth_mod_mutex);
switch (discipline) {
case QETH_DISCIPLINE_LAYER3:
@ -5611,22 +5549,25 @@ int qeth_core_load_discipline(struct qeth_card *card,
default:
break;
}
mutex_unlock(&qeth_mod_mutex);
if (!card->discipline) {
dev_err(&card->gdev->dev, "There is no kernel module to "
"support discipline %d\n", discipline);
rc = -EINVAL;
return -EINVAL;
}
mutex_unlock(&qeth_mod_mutex);
return rc;
card->options.layer = discipline;
return 0;
}
void qeth_core_free_discipline(struct qeth_card *card)
{
if (card->options.layer2)
if (IS_LAYER2(card))
symbol_put(qeth_l2_discipline);
else
symbol_put(qeth_l3_discipline);
card->options.layer = QETH_DISCIPLINE_UNDETERMINED;
card->discipline = NULL;
}
@ -5790,7 +5731,6 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
goto err_card;
}
dev_set_drvdata(&gdev->dev, card);
qeth_setup_card(card);
qeth_update_from_chp_desc(card);
@ -5853,7 +5793,6 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
write_unlock_irq(&qeth_core_card_list.rwlock);
free_netdev(card->dev);
qeth_core_free_card(card);
dev_set_drvdata(&gdev->dev, NULL);
put_device(&gdev->dev);
}
@ -6146,7 +6085,7 @@ void qeth_core_get_drvinfo(struct net_device *dev,
{
struct qeth_card *card = dev->ml_priv;
strlcpy(info->driver, card->options.layer2 ? "qeth_l2" : "qeth_l3",
strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3",
sizeof(info->driver));
strlcpy(info->version, "1.0", sizeof(info->version));
strlcpy(info->fw_version, card->info.mcl_level,
@ -6625,9 +6564,7 @@ static int __init qeth_core_init(void)
pr_info("loading core functions\n");
INIT_LIST_HEAD(&qeth_core_card_list.list);
INIT_LIST_HEAD(&qeth_dbf_list);
rwlock_init(&qeth_core_card_list.rwlock);
mutex_init(&qeth_mod_mutex);
qeth_wq = create_singlethread_workqueue("qeth_wq");
if (!qeth_wq) {

15
drivers/s390/net/qeth_core_sys.c
View File

@ -31,10 +31,9 @@ static ssize_t qeth_dev_state_show(struct device *dev,
case CARD_STATE_SOFTSETUP:
return sprintf(buf, "SOFTSETUP\n");
case CARD_STATE_UP:
if (card->lan_online)
return sprintf(buf, "UP (LAN ONLINE)\n");
else
return sprintf(buf, "UP (LAN OFFLINE)\n");
return sprintf(buf, "UP (LAN %s)\n",
netif_carrier_ok(card->dev) ? "ONLINE" :
"OFFLINE");
case CARD_STATE_RECOVER:
return sprintf(buf, "RECOVER\n");
default:
@ -228,7 +227,7 @@ static ssize_t qeth_dev_prioqing_store(struct device *dev,
card->qdio.do_prio_queueing = QETH_PRIO_Q_ING_TOS;
card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
} else if (sysfs_streq(buf, "prio_queueing_vlan")) {
if (!card->options.layer2) {
if (IS_LAYER3(card)) {
rc = -ENOTSUPP;
goto out;
}
@ -379,7 +378,7 @@ static ssize_t qeth_dev_layer2_show(struct device *dev,
if (!card)
return -EINVAL;
return sprintf(buf, "%i\n", card->options.layer2);
return sprintf(buf, "%i\n", card->options.layer);
}
static ssize_t qeth_dev_layer2_store(struct device *dev,
@ -413,7 +412,7 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
goto out;
}
if (card->options.layer2 == newdis)
if (card->options.layer == newdis)
goto out;
if (card->info.layer_enforced) {
/* fixed layer, can't switch */
@ -432,8 +431,6 @@ static ssize_t qeth_dev_layer2_store(struct device *dev,
card->discipline->remove(card->gdev);
qeth_core_free_discipline(card);
card->options.layer2 = -1;
free_netdev(card->dev);
card->dev = ndev;
}

12
drivers/s390/net/qeth_l2_main.c
View File

@ -694,7 +694,7 @@ static netdev_tx_t qeth_l2_hard_start_xmit(struct sk_buff *skb,
int tx_bytes = skb->len;
int rc;
if ((card->state != CARD_STATE_UP) || !card->lan_online) {
if (card->state != CARD_STATE_UP) {
card->stats.tx_carrier_errors++;
goto tx_drop;
}
@ -806,7 +806,6 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
}
INIT_LIST_HEAD(&card->vid_list);
hash_init(card->mac_htable);
card->options.layer2 = 1;
card->info.hwtrap = 0;
qeth_l2_vnicc_set_defaults(card);
return 0;
@ -998,10 +997,6 @@ static int __qeth_l2_set_online(struct ccwgroup_device *gdev, int recovery_mode)
goto out_remove;
}
card->state = CARD_STATE_SOFTSETUP;
if (card->lan_online)
netif_carrier_on(card->dev);
else
netif_carrier_off(card->dev);
qeth_set_allowed_threads(card, 0xffffffff, 0);
@ -1147,9 +1142,6 @@ static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
int rc = 0;
if (gdev->state == CCWGROUP_OFFLINE)
goto out;
if (card->state == CARD_STATE_RECOVER) {
rc = __qeth_l2_set_online(card->gdev, 1);
if (rc) {
@ -1159,7 +1151,7 @@ static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
}
} else
rc = __qeth_l2_set_online(card->gdev, 0);
out:
qeth_set_allowed_threads(card, 0xffffffff, 0);
netif_device_attach(card->dev);
if (rc)

24
drivers/s390/net/qeth_l3_main.c
View File

@ -1348,6 +1348,7 @@ static void qeth_l3_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
int budget, int *done)
{
struct net_device *dev = card->dev;
int work_done = 0;
struct sk_buff *skb;
struct qeth_hdr *hdr;
@ -1369,11 +1370,10 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card,
magic = *(__u16 *)skb->data;
if ((card->info.type == QETH_CARD_TYPE_IQD) &&
(magic == ETH_P_AF_IUCV)) {
skb->protocol = cpu_to_be16(ETH_P_AF_IUCV);
len = skb->len;
card->dev->header_ops->create(skb, card->dev, 0,
card->dev->dev_addr, "FAKELL", len);
skb_reset_mac_header(skb);
dev_hard_header(skb, dev, ETH_P_AF_IUCV,
dev->dev_addr, "FAKELL", len);
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
} else {
qeth_l3_rebuild_skb(card, skb, hdr);
@ -2005,17 +2005,15 @@ static void qeth_l3_fill_af_iucv_hdr(struct qeth_hdr *hdr, struct sk_buff *skb,
unsigned int data_len)
{
char daddr[16];
struct af_iucv_trans_hdr *iucv_hdr;
hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
hdr->hdr.l3.length = data_len;
hdr->hdr.l3.flags = QETH_HDR_IPV6 | QETH_CAST_UNICAST;
iucv_hdr = (struct af_iucv_trans_hdr *)(skb_mac_header(skb) + ETH_HLEN);
memset(daddr, 0, sizeof(daddr));
daddr[0] = 0xfe;
daddr[1] = 0x80;
memcpy(&daddr[8], iucv_hdr->destUserID, 8);
memcpy(&daddr[8], iucv_trans_hdr(skb)->destUserID, 8);
memcpy(hdr->hdr.l3.next_hop.ipv6_addr, daddr, 16);
}
@ -2235,7 +2233,7 @@ static netdev_tx_t qeth_l3_hard_start_xmit(struct sk_buff *skb,
goto tx_drop;
}
if (card->state != CARD_STATE_UP || !card->lan_online) {
if (card->state != CARD_STATE_UP) {
card->stats.tx_carrier_errors++;
goto tx_drop;
}
@ -2489,7 +2487,6 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
}
hash_init(card->ip_htable);
hash_init(card->ip_mc_htable);
card->options.layer2 = 0;
card->info.hwtrap = 0;
return 0;
}
@ -2576,10 +2573,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode)
qeth_set_allowed_threads(card, 0xffffffff, 0);
qeth_l3_recover_ip(card);
if (card->lan_online)
netif_carrier_on(card->dev);
else
netif_carrier_off(card->dev);
qeth_enable_hw_features(card->dev);
if (recover_flag == CARD_STATE_RECOVER) {
@ -2717,9 +2710,6 @@ static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
int rc = 0;
if (gdev->state == CCWGROUP_OFFLINE)
goto out;
if (card->state == CARD_STATE_RECOVER) {
rc = __qeth_l3_set_online(card->gdev, 1);
if (rc) {
@ -2729,7 +2719,7 @@ static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
}
} else
rc = __qeth_l3_set_online(card->gdev, 0);
out:
qeth_set_allowed_threads(card, 0xffffffff, 0);
netif_device_attach(card->dev);
if (rc)

5
include/net/iucv/af_iucv.h
View File

@ -80,6 +80,11 @@ struct af_iucv_trans_hdr {
u8 pad; /* total 104 bytes */
} __packed;
static inline struct af_iucv_trans_hdr *iucv_trans_hdr(struct sk_buff *skb)
{
return (struct af_iucv_trans_hdr *)skb_network_header(skb);
}
enum iucv_tx_notify {
/* transmission of skb is completed and was successful */
TX_NOTIFY_OK = 0,

42
net/iucv/af_iucv.c
View File

@ -320,13 +320,9 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock,
struct sk_buff *nskb;
int err, confirm_recv = 0;
memset(skb->head, 0, ETH_HLEN);
phs_hdr = skb_push(skb, sizeof(struct af_iucv_trans_hdr));
skb_reset_mac_header(skb);
phs_hdr = skb_push(skb, sizeof(*phs_hdr));
memset(phs_hdr, 0, sizeof(*phs_hdr));
skb_reset_network_header(skb);
skb_push(skb, ETH_HLEN);
skb_reset_mac_header(skb);
memset(phs_hdr, 0, sizeof(struct af_iucv_trans_hdr));
phs_hdr->magic = ETH_P_AF_IUCV;
phs_hdr->version = 1;
@ -350,6 +346,9 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock,
if (imsg)
memcpy(&phs_hdr->iucv_hdr, imsg, sizeof(struct iucv_message));
skb_push(skb, ETH_HLEN);
memset(skb->data, 0, ETH_HLEN);
skb->dev = iucv->hs_dev;
if (!skb->dev) {
err = -ENODEV;
@ -1943,8 +1942,7 @@ static void iucv_callback_shutdown(struct iucv_path *path, u8 ipuser[16])
/***************** HiperSockets transport callbacks ********************/
static void afiucv_swap_src_dest(struct sk_buff *skb)
{
struct af_iucv_trans_hdr *trans_hdr =
(struct af_iucv_trans_hdr *)skb->data;
struct af_iucv_trans_hdr *trans_hdr = iucv_trans_hdr(skb);
char tmpID[8];
char tmpName[8];
@ -1967,13 +1965,12 @@ static void afiucv_swap_src_dest(struct sk_buff *skb)
**/
static int afiucv_hs_callback_syn(struct sock *sk, struct sk_buff *skb)
{
struct af_iucv_trans_hdr *trans_hdr = iucv_trans_hdr(skb);
struct sock *nsk;
struct iucv_sock *iucv, *niucv;
struct af_iucv_trans_hdr *trans_hdr;
int err;
iucv = iucv_sk(sk);
trans_hdr = (struct af_iucv_trans_hdr *)skb->data;
if (!iucv) {
/* no sock - connection refused */
afiucv_swap_src_dest(skb);
@ -2034,15 +2031,13 @@ out:
static int afiucv_hs_callback_synack(struct sock *sk, struct sk_buff *skb)
{
struct iucv_sock *iucv = iucv_sk(sk);
struct af_iucv_trans_hdr *trans_hdr =
(struct af_iucv_trans_hdr *)skb->data;
if (!iucv)
goto out;
if (sk->sk_state != IUCV_BOUND)
goto out;
bh_lock_sock(sk);
iucv->msglimit_peer = trans_hdr->window;
iucv->msglimit_peer = iucv_trans_hdr(skb)->window;
sk->sk_state = IUCV_CONNECTED;
sk->sk_state_change(sk);
bh_unlock_sock(sk);
@ -2098,8 +2093,6 @@ out:
static int afiucv_hs_callback_win(struct sock *sk, struct sk_buff *skb)
{
struct iucv_sock *iucv = iucv_sk(sk);
struct af_iucv_trans_hdr *trans_hdr =
(struct af_iucv_trans_hdr *)skb->data;
if (!iucv)
return NET_RX_SUCCESS;
@ -2107,7 +2100,7 @@ static int afiucv_hs_callback_win(struct sock *sk, struct sk_buff *skb)
if (sk->sk_state != IUCV_CONNECTED)
return NET_RX_SUCCESS;
atomic_sub(trans_hdr->window, &iucv->msg_sent);
atomic_sub(iucv_trans_hdr(skb)->window, &iucv->msg_sent);
iucv_sock_wake_msglim(sk);
return NET_RX_SUCCESS;
}
@ -2170,22 +2163,13 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev,
int err = NET_RX_SUCCESS;
char nullstring[8];
if (skb->len < (ETH_HLEN + sizeof(struct af_iucv_trans_hdr))) {
WARN_ONCE(1, "AF_IUCV too short skb, len=%d, min=%d",
(int)skb->len,
(int)(ETH_HLEN + sizeof(struct af_iucv_trans_hdr)));
if (!pskb_may_pull(skb, sizeof(*trans_hdr))) {
WARN_ONCE(1, "AF_IUCV failed to receive skb, len=%u", skb->len);
kfree_skb(skb);
return NET_RX_SUCCESS;
}
if (skb_headlen(skb) < (ETH_HLEN + sizeof(struct af_iucv_trans_hdr)))
if (skb_linearize(skb)) {
WARN_ONCE(1, "AF_IUCV skb_linearize failed, len=%d",
(int)skb->len);
kfree_skb(skb);
return NET_RX_SUCCESS;
}
skb_pull(skb, ETH_HLEN);
trans_hdr = (struct af_iucv_trans_hdr *)skb->data;
trans_hdr = iucv_trans_hdr(skb);
EBCASC(trans_hdr->destAppName, sizeof(trans_hdr->destAppName));
EBCASC(trans_hdr->destUserID, sizeof(trans_hdr->destUserID));
EBCASC(trans_hdr->srcAppName, sizeof(trans_hdr->srcAppName));