>From Klaus-D. Wacker <kdwacker@xxxxxxxxxx>
Signed-off-by: Klaus-D. Wacker <kdwacker@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
Documentation/kmsg/s390/lcs | 170 ++++++++++++++++++++++++++++++++++++++++++++
drivers/s390/net/lcs.c | 78 +++++++++++---------
2 files changed, 216 insertions(+), 32 deletions(-)
Index: kmsg-2.6/Documentation/kmsg/s390/lcs
===================================================================
--- /dev/null
+++ kmsg-2.6/Documentation/kmsg/s390/lcs
@@ -0,0 +1,170 @@
+/*?
+ * Tag: lcs.1666ed
+ * Text: "%s: Allocating a socket buffer to interface %s failed\n"
+ * Severity: Error
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * @2: network interface
+ * Description:
+ * LAN channel station (LCS) devices require a socket buffer (SKB) structure
+ * for storing incoming data. The LCS device driver failed to allocate an SKB
+ * structure to the LCS device. A likely cause of this problem is memory
+ * constraints.
+ * User action:
+ * Free some memory and repeat the failed operation.
+ */
+
+/*?
+ * Tag: lcs.fd3431
+ * Text: "%s: Shutting down the LCS device failed\n "
+ * Severity: Error
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * Description:
+ * A request to shut down a LAN channel station (LCS) device resulted in an
+ * error. The error is logged in the LCS trace at trace level 4.
+ * User action:
+ * Try again to shut down the device. If the error persists, see the LCS trace
+ * to find out what causes the error.
+ */
+
+/*?
+ * Tag: lcs.c4ca7a
+ * Text: "%s: Detecting a network adapter for LCS devices failed with rc=%d (0x%x)\n"
+ * Severity: Error
+ * Parameter:
+ * @1: lcs_detect return code in decimal notation
+ * @2: lcs_detect return code in hexadecimal notation
+ * Description:
+ * The LCS device driver could not initialize a network adapter.
+ * User action:
+ * Note the return codes from the error message and contact IBM support.
+ */
+
+/*?
+ * Tag: lcs.abd525
+ * Text: "%s: A recovery process has been started for the LCS device\n"
+ * Severity: Warning
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * Description:
+ * The LAN channel station (LCS) device is shut down and restarted. The recovery
+ * process might have been initiated by a user or started automatically as a
+ * response to a device problem.
+ * User action:
+ * Wait until a message indicates the completion of the recovery process.
+ */
+
+/*?
+ * Tag: lcs.43b3aa
+ * Text: "%s: An I/O-error occurred on the LCS device\n"
+ * Severity: Warning
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * Description:
+ * The LAN channel station (LCS) device reported a problem that can be recovered
+ * by the LCS device driver. Repeated occurrences of this problem indicate a
+ * malfunctioning device.
+ * User action:
+ * If this problem occurs frequently, initiate a recovery process for the
+ * device, for example, by writing '1' to the 'recover' sysfs attribute of the
+ * device.
+ */
+
+/*?
+ * Tag: lcs.d96565
+ * Text: "%s: A command timed out on the LCS device\n"
+ * Severity: Warning
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * Description:
+ * The LAN channel station (LCS) device reported a problem that can be recovered
+ * by the LCS device driver. Repeated occurrences of this problem indicate a
+ * malfunctioning device.
+ * User action:
+ * If this problem occurs frequently, initiate a recovery process for the
+ * device, for example, by writing '1' to the 'recover' sysfs attribute of the
+ * device.
+ */
+
+/*?
+ * Tag: lcs.dae31d
+ * Text: "%s: An error occurred on the LCS device, rc=%ld\n"
+ * Severity: Warning
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * @2: return code
+ * Description:
+ * The LAN channel station (LCS) device reported a problem that can be recovered
+ * by the LCS device driver. Repeated occurrences of this problem indicate a
+ * malfunctioning device.
+ * User action:
+ * If this problem occurs frequently, initiate a recovery process for the
+ * device, for example, by writing '1' to the 'recover' sysfs attribute of the
+ * device.
+ */
+
+/*?
+* Tag: lcs.45e59d
+ * Text: "%s: The LCS device stopped because of an error, dstat=0x%X, cstat=0x%X \n"
+ * Severity: Warning
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * @2: device status
+ * @3: subchannel status
+ * Description:
+ * The LAN channel station (LCS) device reported an error. The LCS device driver
+ * might start a device recovery process.
+ * User action:
+ * If the device driver does not start a recovery process, initiate a recovery
+ * process, for example, by writing '1' to the 'recover' sysfs attribute of the
+ * device. If the problem persists, note the status information provided with
+ * the message and contact IBM support.
+ */
+
+/*?
+ * Tag: lcs.c16f9f
+ * Text: "%s: Starting an LCS device resulted in an error, rc=%d!\n"
+ * Severity: Error
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * @2: ccw_device_start return code in decimal notation
+ * Description:
+ * The LAN channel station (LCS) device driver failed to initialize an LCS
+ * device. The device is not operational.
+ * User action:
+ * Initiate a recovery process, for example, by writing '1' to the 'recover'
+ * sysfs attribute of the device. If the problem persists, contact IBM support.
+ */
+
+/*?
+ * Tag: lcs.c5d9db
+ * Text: "%s: Sending data from the LCS device to the LAN failed with rc=%d\n"
+ * Severity: Error
+ * Parameter:
+ * @1: bus ID of the LCS device
+ * @2: ccw_device_resume return code in decimal notation
+ * Description:
+ * The LAN channel station (LCS) device driver could not send data to the LAN
+ * using the LCS device. This might be a temporary problem. Operations continue
+ * on the LCS device.
+ * User action:
+ * If this problem occurs frequently, initiate a recovery process, for example,
+ * by writing '1' to the 'recover' sysfs attribute of the device. If the
+ * problem persists, contact IBM support.
+ */
+
+/*? Tag: lcs.1ba8a7 Text: "Query IPAssist failed. Assuming unsupported!\n" */
+/*? Tag: lcs.c4901b Text: "Stoplan for %s initiated by LGW.\n" */
+/*? Tag: lcs.0760e8 Text: "Not enough memory to add new multicast entry!\n" */
+/*? Tag: lcs.d6f064 Text: "Not enough memory for debug facility.\n" */
+/*? Tag: lcs.85e209 Text: "Adding multicast address failed. Table possibly full!\n" */
+/*? Tag: lcs.f3f857 Text: "Error in opening device!\n" */
+/*? Tag: lcs.0aabaa Text: "LCS device %s %s IPv6 support\n" */
+/*? Tag: lcs.453fea Text: "Device %s successfully recovered!\n" */
+/*? Tag: lcs.ea2a85 Text: "LCS device %s %s Multicast support\n" */
+/*? Tag: lcs.38cb90 Text: " Initialization failed\n" */
+/*? Tag: lcs.35862f Text: "Loading %s\n" */
+/*? Tag: lcs.f53f45 Text: "Initialization failed\n" */
+/*? Tag: lcs.c5a5fa Text: "Terminating lcs module.\n" */
+/*? Tag: lcs.535a08 Text: "Device %s could not be recovered!\n" */
Index: kmsg-2.6/drivers/s390/net/lcs.c
===================================================================
--- kmsg-2.6.orig/drivers/s390/net/lcs.c
+++ kmsg-2.6/drivers/s390/net/lcs.c
@@ -26,6 +26,8 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#define KMSG_COMPONENT "lcs"
+
#include <linux/module.h>
#include <linux/if.h>
#include <linux/netdevice.h>
@@ -36,6 +38,7 @@
#include <linux/in.h>
#include <linux/igmp.h>
#include <linux/delay.h>
+#include <linux/kmsg.h>
#include <net/arp.h>
#include <net/ip.h>
@@ -54,8 +57,6 @@
#error Cannot compile lcs.c without some net devices switched on.
#endif
-#define PRINTK_HEADER " lcs: "
-
/**
* initialization string for output
*/
@@ -96,7 +97,7 @@ lcs_register_debug_facility(void)
lcs_dbf_setup = debug_register("lcs_setup", 2, 1, 8);
lcs_dbf_trace = debug_register("lcs_trace", 4, 1, 8);
if (lcs_dbf_setup == NULL || lcs_dbf_trace == NULL) {
- PRINT_ERR("Not enough memory for debug facility.\n");
+ kmsg_err("Not enough memory for debug facility.\n");
lcs_unregister_debug_facility();
return -ENOMEM;
}
@@ -502,7 +503,9 @@ lcs_start_channel(struct lcs_channel *ch
spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
if (rc) {
LCS_DBF_TEXT_(4,trace,"essh%s", channel->ccwdev->dev.bus_id);
- PRINT_ERR("Error in starting channel, rc=%d!\n", rc);
+ dev_err(&channel->ccwdev->dev,
+ "Starting an LCS device resulted in an error,"
+ " rc=%d!\n", rc);
}
return rc;
}
@@ -636,7 +639,9 @@ __lcs_resume_channel(struct lcs_channel
rc = ccw_device_resume(channel->ccwdev);
if (rc) {
LCS_DBF_TEXT_(4, trace, "ersc%s", channel->ccwdev->dev.bus_id);
- PRINT_ERR("Error in lcs_resume_channel: rc=%d\n",rc);
+ dev_warn(&channel->ccwdev->dev,
+ "Sending data from the LCS device to the LAN failed"
+ " with rc=%d\n",rc);
} else
channel->state = LCS_CH_STATE_RUNNING;
return rc;
@@ -1082,7 +1087,7 @@ lcs_check_multicast_support(struct lcs_c
cmd->cmd.lcs_qipassist.num_ip_pairs = 1;
rc = lcs_send_lancmd(card, buffer, __lcs_check_multicast_cb);
if (rc != 0) {
- PRINT_ERR("Query IPAssist failed. Assuming unsupported!\n");
+ kmsg_err("Query IPAssist failed. Assuming unsupported!\n");
return -EOPNOTSUPP;
}
if (card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT)
@@ -1115,8 +1120,8 @@ list_modified:
rc = lcs_send_setipm(card, ipm);
spin_lock_irqsave(&card->ipm_lock, flags);
if (rc) {
- PRINT_INFO("Adding multicast address failed. "
- "Table possibly full!\n");
+ kmsg_info("Adding multicast address failed."
+ " Table possibly full!\n");
/* store ipm in failed list -> will be added
* to ipm_list again, so a retry will be done
* during the next call of this function */
@@ -1227,8 +1232,8 @@ lcs_set_mc_addresses(struct lcs_card *ca
ipm = (struct lcs_ipm_list *)
kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC);
if (ipm == NULL) {
- PRINT_INFO("Not enough memory to add "
- "new multicast entry!\n");
+ kmsg_info("Not enough memory to add"
+ " new multicast entry!\n");
break;
}
memcpy(&ipm->ipm.mac_addr, buf, LCS_MAC_LENGTH);
@@ -1302,18 +1307,21 @@ lcs_check_irb_error(struct ccw_device *c
switch (PTR_ERR(irb)) {
case -EIO:
- PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
+ dev_warn(&cdev->dev,
+ "An I/O-error occurred on the LCS device\n");
LCS_DBF_TEXT(2, trace, "ckirberr");
LCS_DBF_TEXT_(2, trace, " rc%d", -EIO);
break;
case -ETIMEDOUT:
- PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
+ dev_warn(&cdev->dev,
+ "A command timed out on the LCS device\n");
LCS_DBF_TEXT(2, trace, "ckirberr");
LCS_DBF_TEXT_(2, trace, " rc%d", -ETIMEDOUT);
break;
default:
- PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
- cdev->dev.bus_id);
+ dev_warn(&cdev->dev,
+ "An error occurred on the LCS device, rc=%ld\n",
+ PTR_ERR(irb));
LCS_DBF_TEXT(2, trace, "ckirberr");
LCS_DBF_TEXT(2, trace, " rc???");
}
@@ -1399,8 +1407,10 @@ lcs_irq(struct ccw_device *cdev, unsigne
/* Check for channel and device errors presented */
rc = lcs_get_problem(cdev, irb);
if (rc || (dstat & DEV_STAT_UNIT_EXCEP)) {
- PRINT_WARN("check on device %s, dstat=0x%X, cstat=0x%X \n",
- cdev->dev.bus_id, dstat, cstat);
+ dev_warn(&cdev->dev,
+ "The LCS device stopped because of an error,"
+ " dstat=0x%X, cstat=0x%X \n",
+ dstat, cstat);
if (rc) {
channel->state = LCS_CH_STATE_ERROR;
}
@@ -1757,7 +1767,7 @@ lcs_get_control(struct lcs_card *card, s
lcs_schedule_recovery(card);
break;
case LCS_CMD_STOPLAN:
- PRINT_WARN("Stoplan for %s initiated by LGW.\n",
+ kmsg_warn("Stoplan for %s initiated by LGW.\n",
card->dev->name);
if (card->dev)
netif_carrier_off(card->dev);
@@ -1786,7 +1796,8 @@ lcs_get_skb(struct lcs_card *card, char
skb = dev_alloc_skb(skb_len);
if (skb == NULL) {
- PRINT_ERR("LCS: alloc_skb failed for device=%s\n",
+ dev_err(&card->dev->dev,
+ " Allocating a socket buffer to interface %s failed\n",
card->dev->name);
card->stats.rx_dropped++;
return;
@@ -1882,7 +1893,8 @@ lcs_stop_device(struct net_device *dev)
(card->write.state != LCS_CH_STATE_RUNNING));
rc = lcs_stopcard(card);
if (rc)
- PRINT_ERR("Try it again!\n ");
+ dev_err(&card->dev->dev,
+ " Shutting down the LCS device failed\n ");
return rc;
}
@@ -1901,7 +1913,7 @@ lcs_open_device(struct net_device *dev)
/* initialize statistics */
rc = lcs_detect(card);
if (rc) {
- PRINT_ERR("LCS:Error in opening device!\n");
+ kmsg_err("Error in opening device!\n");
} else {
dev->flags |= IFF_UP;
@@ -2109,8 +2121,9 @@ lcs_new_device(struct ccwgroup_device *c
rc = lcs_detect(card);
if (rc) {
LCS_DBF_TEXT(2, setup, "dtctfail");
- PRINT_WARN("Detection of LCS card failed with return code "
- "%d (0x%x)\n", rc, rc);
+ dev_warn(&card->dev->dev,
+ "Detecting a network adapter for LCS devices"
+ " failed with rc=%d (0x%x)\n", rc, rc);
lcs_stopcard(card);
goto out;
}
@@ -2140,7 +2153,7 @@ lcs_new_device(struct ccwgroup_device *c
#endif
default:
LCS_DBF_TEXT(3, setup, "errinit");
- PRINT_ERR("LCS: Initialization failed\n");
+ kmsg_err(" Initialization failed\n");
goto out;
}
if (!dev)
@@ -2172,11 +2185,11 @@ netdev_out:
goto out;
/* Print out supported assists: IPv6 */
- PRINT_INFO("LCS device %s %s IPv6 support\n", card->dev->name,
+ kmsg_info("LCS device %s %s IPv6 support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_IPV6_SUPPORT) ?
"with" : "without");
/* Print out supported assist: Multicast */
- PRINT_INFO("LCS device %s %s Multicast support\n", card->dev->name,
+ kmsg_info("LCS device %s %s Multicast support\n", card->dev->name,
(card->ip_assists_supported & LCS_IPASS_MULTICAST_SUPPORT) ?
"with" : "without");
return 0;
@@ -2244,14 +2257,15 @@ lcs_recovery(void *ptr)
return 0;
LCS_DBF_TEXT(4, trace, "recover2");
gdev = card->gdev;
- PRINT_WARN("Recovery of device %s started...\n", gdev->dev.bus_id);
+ dev_warn(&gdev->dev,
+ "A recovery process has been started for the LCS device\n");
rc = __lcs_shutdown_device(gdev, 1);
rc = lcs_new_device(gdev);
if (!rc)
- PRINT_INFO("Device %s successfully recovered!\n",
+ kmsg_info("Device %s successfully recovered!\n",
card->dev->name);
else
- PRINT_INFO("Device %s could not be recovered!\n",
+ kmsg_info("Device %s could not be recovered!\n",
card->dev->name);
lcs_clear_thread_running_bit(card, LCS_RECOVERY_THREAD);
return 0;
@@ -2304,17 +2318,17 @@ __init lcs_init_module(void)
{
int rc;
- PRINT_INFO("Loading %s\n",version);
+ kmsg_info("Loading %s\n", version);
rc = lcs_register_debug_facility();
LCS_DBF_TEXT(0, setup, "lcsinit");
if (rc) {
- PRINT_ERR("Initialization failed\n");
+ kmsg_err("Initialization failed\n");
return rc;
}
rc = register_cu3088_discipline(&lcs_group_driver);
if (rc) {
- PRINT_ERR("Initialization failed\n");
+ kmsg_err("Initialization failed\n");
return rc;
}
return 0;
@@ -2327,7 +2341,7 @@ __init lcs_init_module(void)
static void
__exit lcs_cleanup_module(void)
{
- PRINT_INFO("Terminating lcs module.\n");
+ kmsg_info("Terminating lcs module.\n");
LCS_DBF_TEXT(0, trace, "cleanup");
unregister_cu3088_discipline(&lcs_group_driver);
lcs_unregister_debug_facility();
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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