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yaml
---
r: 121436
b: refs/heads/master
c: 2a7c6f2
h: refs/heads/master
v: v3
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Peter Tiedemann authored and Martin Schwidefsky committed Dec 25, 2008
1 parent b3e9eee commit e28f8db
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Showing 6 changed files with 87 additions and 57 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ecf39d42129767c0b4b4a6cf4997c1219c860934
refs/heads/master: 2a7c6f2c39d1291e55403676b25fcfbff78fc5fb
46 changes: 28 additions & 18 deletions trunk/drivers/s390/net/ctcm_fsms.c
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,9 @@
#undef DEBUGDATA
#undef DEBUGCCW

#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
Expand Down Expand Up @@ -190,21 +193,22 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg);
void ctcm_ccw_check_rc(struct channel *ch, int rc, char *msg)
{
CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR,
"%s(%s): %s: %04x\n",
CTCM_FUNTAIL, ch->id, msg, rc);
"%s(%s): %s: %04x\n",
CTCM_FUNTAIL, ch->id, msg, rc);
switch (rc) {
case -EBUSY:
ctcm_pr_warn("%s (%s): Busy !\n", ch->id, msg);
pr_info("%s: The communication peer is busy\n",
ch->id);
fsm_event(ch->fsm, CTC_EVENT_IO_EBUSY, ch);
break;
case -ENODEV:
ctcm_pr_emerg("%s (%s): Invalid device called for IO\n",
ch->id, msg);
pr_err("%s: The specified target device is not valid\n",
ch->id);
fsm_event(ch->fsm, CTC_EVENT_IO_ENODEV, ch);
break;
default:
ctcm_pr_emerg("%s (%s): Unknown error in do_IO %04x\n",
ch->id, msg, rc);
pr_err("An I/O operation resulted in error %04x\n",
rc);
fsm_event(ch->fsm, CTC_EVENT_IO_UNKNOWN, ch);
}
}
Expand Down Expand Up @@ -886,8 +890,15 @@ static void ctcm_chx_rxiniterr(fsm_instance *fi, int event, void *arg)
fsm_newstate(fi, CTC_STATE_RXERR);
fsm_event(priv->fsm, DEV_EVENT_RXDOWN, dev);
}
} else
ctcm_pr_warn("%s: Error during RX init handshake\n", dev->name);
} else {
CTCM_DBF_TEXT_(ERROR, CTC_DBF_ERROR,
"%s(%s): %s in %s", CTCM_FUNTAIL, ch->id,
ctc_ch_event_names[event], fsm_getstate_str(fi));

dev_warn(&dev->dev,
"Initialization failed with RX/TX init handshake "
"error %s\n", ctc_ch_event_names[event]);
}
}

/**
Expand Down Expand Up @@ -969,7 +980,9 @@ static void ctcm_chx_txiniterr(fsm_instance *fi, int event, void *arg)
"%s(%s): %s in %s", CTCM_FUNTAIL, ch->id,
ctc_ch_event_names[event], fsm_getstate_str(fi));

ctcm_pr_warn("%s: Error during TX init handshake\n", dev->name);
dev_warn(&dev->dev,
"Initialization failed with RX/TX init handshake "
"error %s\n", ctc_ch_event_names[event]);
}
}

Expand Down Expand Up @@ -2101,14 +2114,11 @@ static void dev_action_restart(fsm_instance *fi, int event, void *arg)
CTCMY_DBF_DEV_NAME(TRACE, dev, "");

if (IS_MPC(priv)) {
ctcm_pr_info("ctcm: %s Restarting Device and "
"MPC Group in 5 seconds\n",
dev->name);
restart_timer = CTCM_TIME_1_SEC;
} else {
ctcm_pr_info("%s: Restarting\n", dev->name);
restart_timer = CTCM_TIME_5_SEC;
}
dev_info(&dev->dev, "Restarting device\n");

dev_action_stop(fi, event, arg);
fsm_event(priv->fsm, DEV_EVENT_STOP, dev);
Expand Down Expand Up @@ -2150,16 +2160,16 @@ static void dev_action_chup(fsm_instance *fi, int event, void *arg)
case DEV_STATE_STARTWAIT_RX:
if (event == DEV_EVENT_RXUP) {
fsm_newstate(fi, DEV_STATE_RUNNING);
ctcm_pr_info("%s: connected with remote side\n",
dev->name);
dev_info(&dev->dev,
"Connected with remote side\n");
ctcm_clear_busy(dev);
}
break;
case DEV_STATE_STARTWAIT_TX:
if (event == DEV_EVENT_TXUP) {
fsm_newstate(fi, DEV_STATE_RUNNING);
ctcm_pr_info("%s: connected with remote side\n",
dev->name);
dev_info(&dev->dev,
"Connected with remote side\n");
ctcm_clear_busy(dev);
}
break;
Expand Down
72 changes: 45 additions & 27 deletions trunk/drivers/s390/net/ctcm_main.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,9 @@
#undef DEBUGDATA
#undef DEBUGCCW

#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
Expand Down Expand Up @@ -281,14 +284,16 @@ static long ctcm_check_irb_error(struct ccw_device *cdev, struct irb *irb)

switch (PTR_ERR(irb)) {
case -EIO:
ctcm_pr_warn("i/o-error on device %s\n", dev_name(&cdev->dev));
dev_err(&cdev->dev,
"An I/O-error occurred on the CTCM device\n");
break;
case -ETIMEDOUT:
ctcm_pr_warn("timeout on device %s\n", dev_name(&cdev->dev));
dev_err(&cdev->dev,
"An adapter hardware operation timed out\n");
break;
default:
ctcm_pr_warn("unknown error %ld on device %s\n",
PTR_ERR(irb), dev_name(&cdev->dev));
dev_err(&cdev->dev,
"An error occurred on the adapter hardware\n");
}
return PTR_ERR(irb);
}
Expand All @@ -309,15 +314,17 @@ static inline void ccw_unit_check(struct channel *ch, __u8 sense)
if (sense & SNS0_INTERVENTION_REQ) {
if (sense & 0x01) {
if (ch->sense_rc != 0x01) {
ctcm_pr_debug("%s: Interface disc. or Sel. "
"reset (remote)\n", ch->id);
pr_notice(
"%s: The communication peer has "
"disconnected\n", ch->id);
ch->sense_rc = 0x01;
}
fsm_event(ch->fsm, CTC_EVENT_UC_RCRESET, ch);
} else {
if (ch->sense_rc != SNS0_INTERVENTION_REQ) {
ctcm_pr_debug("%s: System reset (remote)\n",
ch->id);
pr_notice(
"%s: The remote operating system is "
"not available\n", ch->id);
ch->sense_rc = SNS0_INTERVENTION_REQ;
}
fsm_event(ch->fsm, CTC_EVENT_UC_RSRESET, ch);
Expand Down Expand Up @@ -1194,8 +1201,11 @@ static void ctcm_irq_handler(struct ccw_device *cdev,

/* Check for unsolicited interrupts. */
if (cgdev == NULL) {
ctcm_pr_warn("ctcm: Got unsolicited irq: c-%02x d-%02x\n",
cstat, dstat);
CTCM_DBF_TEXT_(TRACE, CTC_DBF_ERROR,
"%s(%s) unsolicited irq: c-%02x d-%02x\n",
CTCM_FUNTAIL, dev_name(&cdev->dev), cstat, dstat);
dev_warn(&cdev->dev,
"The adapter received a non-specific IRQ\n");
return;
}

Expand All @@ -1207,39 +1217,42 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
else if (priv->channel[WRITE]->cdev == cdev)
ch = priv->channel[WRITE];
else {
ctcm_pr_err("ctcm: Can't determine channel for interrupt, "
"device %s\n", dev_name(&cdev->dev));
dev_err(&cdev->dev,
"%s: Internal error: Can't determine channel for "
"interrupt device %s\n",
__func__, dev_name(&cdev->dev));
/* Explain: inconsistent internal structures */
return;
}

dev = ch->netdev;
if (dev == NULL) {
ctcm_pr_crit("ctcm: %s dev=NULL bus_id=%s, ch=0x%p\n",
__func__, dev_name(&cdev->dev), ch);
dev_err(&cdev->dev,
"%s Internal error: net_device is NULL, ch = 0x%p\n",
__func__, ch);
/* Explain: inconsistent internal structures */
return;
}

CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG,
"%s(%s): int. for %s: cstat=%02x dstat=%02x",
CTCM_FUNTAIL, dev->name, ch->id, cstat, dstat);

/* Copy interruption response block. */
memcpy(ch->irb, irb, sizeof(struct irb));

/* Issue error message and return on subchannel error code */
if (irb->scsw.cmd.cstat) {
/* Check for good subchannel return code, otherwise error message */
fsm_event(ch->fsm, CTC_EVENT_SC_UNKNOWN, ch);
ctcm_pr_warn("%s: subchannel check for dev: %s - %02x %02x\n",
dev->name, ch->id, irb->scsw.cmd.cstat,
irb->scsw.cmd.dstat);
CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN,
"%s(%s): sub-ch check %s: cs=%02x ds=%02x",
CTCM_FUNTAIL, dev->name, ch->id, cstat, dstat);
dev_warn(&cdev->dev,
"A check occurred on the subchannel\n");
return;
}

/* Check the reason-code of a unit check */
if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
if ((irb->ecw[0] & ch->sense_rc) == 0)
/* print it only once */
CTCM_DBF_TEXT_(TRACE, CTC_DBF_INFO,
CTCM_DBF_TEXT_(TRACE, CTC_DBF_WARN,
"%s(%s): sense=%02x, ds=%02x",
CTCM_FUNTAIL, ch->id, irb->ecw[0], dstat);
ccw_unit_check(ch, irb->ecw[0]);
Expand Down Expand Up @@ -1574,6 +1587,11 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev)

strlcpy(priv->fsm->name, dev->name, sizeof(priv->fsm->name));

dev_info(&dev->dev,
"setup OK : r/w = %s/%s, protocol : %d\n",
priv->channel[READ]->id,
priv->channel[WRITE]->id, priv->protocol);

CTCM_DBF_TEXT_(SETUP, CTC_DBF_INFO,
"setup(%s) OK : r/w = %s/%s, protocol : %d", dev->name,
priv->channel[READ]->id,
Expand Down Expand Up @@ -1687,15 +1705,15 @@ static void __exit ctcm_exit(void)
{
unregister_cu3088_discipline(&ctcm_group_driver);
ctcm_unregister_dbf_views();
ctcm_pr_info("CTCM driver unloaded\n");
pr_info("CTCM driver unloaded\n");
}

/*
* Print Banner.
*/
static void print_banner(void)
{
printk(KERN_INFO "CTCM driver initialized\n");
pr_info("CTCM driver initialized\n");
}

/**
Expand All @@ -1717,8 +1735,8 @@ static int __init ctcm_init(void)
ret = register_cu3088_discipline(&ctcm_group_driver);
if (ret) {
ctcm_unregister_dbf_views();
ctcm_pr_crit("ctcm_init failed with register_cu3088_discipline "
"(rc = %d)\n", ret);
pr_err("%s / register_cu3088_discipline failed, ret = %d\n",
__func__, ret);
return ret;
}
print_banner();
Expand Down
6 changes: 0 additions & 6 deletions trunk/drivers/s390/net/ctcm_main.h
Original file line number Diff line number Diff line change
Expand Up @@ -41,12 +41,6 @@
#define LOG_FLAG_NOMEM 8

#define ctcm_pr_debug(fmt, arg...) printk(KERN_DEBUG fmt, ##arg)
#define ctcm_pr_info(fmt, arg...) printk(KERN_INFO fmt, ##arg)
#define ctcm_pr_notice(fmt, arg...) printk(KERN_NOTICE fmt, ##arg)
#define ctcm_pr_warn(fmt, arg...) printk(KERN_WARNING fmt, ##arg)
#define ctcm_pr_emerg(fmt, arg...) printk(KERN_EMERG fmt, ##arg)
#define ctcm_pr_err(fmt, arg...) printk(KERN_ERR fmt, ##arg)
#define ctcm_pr_crit(fmt, arg...) printk(KERN_CRIT fmt, ##arg)

#define CTCM_PR_DEBUG(fmt, arg...) \
do { \
Expand Down
15 changes: 10 additions & 5 deletions trunk/drivers/s390/net/ctcm_mpc.c
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,9 @@
#undef DEBUGDATA
#undef DEBUGCCW

#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
Expand Down Expand Up @@ -386,7 +389,7 @@ int ctc_mpc_alloc_channel(int port_num, void (*callback)(int, int))
if (grp->allocchan_callback_retries < 4) {
if (grp->allochanfunc)
grp->allochanfunc(grp->port_num,
grp->group_max_buflen);
grp->group_max_buflen);
} else {
/* there are problems...bail out */
/* there may be a state mismatch so restart */
Expand Down Expand Up @@ -1232,8 +1235,9 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb)

dev_kfree_skb_any(pskb);
if (sendrc == NET_RX_DROP) {
printk(KERN_WARNING "%s %s() NETWORK BACKLOG EXCEEDED"
" - PACKET DROPPED\n", dev->name, __func__);
dev_warn(&dev->dev,
"The network backlog for %s is exceeded, "
"package dropped\n", __func__);
fsm_event(grp->fsm, MPCG_EVENT_INOP, dev);
}

Expand Down Expand Up @@ -1670,10 +1674,11 @@ static int mpc_validate_xid(struct mpcg_info *mpcginfo)
CTCM_FUNTAIL, ch->id);
}
}

done:
if (rc) {
ctcm_pr_info("ctcmpc : %s() failed\n", __func__);
dev_warn(&dev->dev,
"The XID used in the MPC protocol is not valid, "
"rc = %d\n", rc);
priv->xid->xid2_flag2 = 0x40;
grp->saved_xid2->xid2_flag2 = 0x40;
}
Expand Down
3 changes: 3 additions & 0 deletions trunk/drivers/s390/net/ctcm_sysfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,9 @@
#undef DEBUGDATA
#undef DEBUGCCW

#define KMSG_COMPONENT "ctcm"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/sysfs.h>
#include "ctcm_main.h"

Expand Down

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