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Date: Tue, 14 Feb 2023 18:38:00 +0200
From: Moshe Shemesh <moshe@...dia.com>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, Jiri Pirko <jiri@...dia.com>,
<netdev@...r.kernel.org>
CC: Moshe Shemesh <moshe@...dia.com>
Subject: [PATCH net-next v2 04/10] devlink: Move devlink health report and recover to health file
Move devlink health report helper and recover callback and related code
from leftover.c to health.c. No functional change in this patch.
Signed-off-by: Moshe Shemesh <moshe@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
Reviewed-by: Jakub Kicinski <kuba@...nel.org>
---
net/devlink/devl_internal.h | 5 ++
net/devlink/health.c | 136 ++++++++++++++++++++++++++++++++++
net/devlink/leftover.c | 141 +-----------------------------------
3 files changed, 144 insertions(+), 138 deletions(-)
diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index 085f80b5feb8..d1a901cb5900 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h
@@ -237,6 +237,9 @@ devlink_nl_health_reporter_fill(struct sk_buff *msg,
struct devlink_health_reporter *reporter,
enum devlink_command cmd, u32 portid,
u32 seq, int flags);
+int devlink_health_do_dump(struct devlink_health_reporter *reporter,
+ void *priv_ctx,
+ struct netlink_ext_ack *extack);
void devlink_fmsg_free(struct devlink_fmsg *fmsg);
@@ -267,3 +270,5 @@ int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
struct genl_info *info);
+int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
+ struct genl_info *info);
diff --git a/net/devlink/health.c b/net/devlink/health.c
index 1c92f369c918..bfeb71f17ff0 100644
--- a/net/devlink/health.c
+++ b/net/devlink/health.c
@@ -5,6 +5,7 @@
*/
#include <net/genetlink.h>
+#include <trace/events/devlink.h>
#include "devl_internal.h"
void *
@@ -408,3 +409,138 @@ int devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
return 0;
}
+
+static void devlink_recover_notify(struct devlink_health_reporter *reporter,
+ enum devlink_command cmd)
+{
+ struct devlink *devlink = reporter->devlink;
+ struct sk_buff *msg;
+ int err;
+
+ WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
+ WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED));
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0);
+ if (err) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg,
+ 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
+}
+
+void
+devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter)
+{
+ reporter->recovery_count++;
+ reporter->last_recovery_ts = jiffies;
+}
+EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done);
+
+static int
+devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
+ void *priv_ctx, struct netlink_ext_ack *extack)
+{
+ int err;
+
+ if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY)
+ return 0;
+
+ if (!reporter->ops->recover)
+ return -EOPNOTSUPP;
+
+ err = reporter->ops->recover(reporter, priv_ctx, extack);
+ if (err)
+ return err;
+
+ devlink_health_reporter_recovery_done(reporter);
+ reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
+ devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
+
+ return 0;
+}
+
+int devlink_health_report(struct devlink_health_reporter *reporter,
+ const char *msg, void *priv_ctx)
+{
+ enum devlink_health_reporter_state prev_health_state;
+ struct devlink *devlink = reporter->devlink;
+ unsigned long recover_ts_threshold;
+ int ret;
+
+ /* write a log message of the current error */
+ WARN_ON(!msg);
+ trace_devlink_health_report(devlink, reporter->ops->name, msg);
+ reporter->error_count++;
+ prev_health_state = reporter->health_state;
+ reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
+ devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
+
+ /* abort if the previous error wasn't recovered */
+ recover_ts_threshold = reporter->last_recovery_ts +
+ msecs_to_jiffies(reporter->graceful_period);
+ if (reporter->auto_recover &&
+ (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY ||
+ (reporter->last_recovery_ts && reporter->recovery_count &&
+ time_is_after_jiffies(recover_ts_threshold)))) {
+ trace_devlink_health_recover_aborted(devlink,
+ reporter->ops->name,
+ reporter->health_state,
+ jiffies -
+ reporter->last_recovery_ts);
+ return -ECANCELED;
+ }
+
+ if (reporter->auto_dump) {
+ mutex_lock(&reporter->dump_lock);
+ /* store current dump of current error, for later analysis */
+ devlink_health_do_dump(reporter, priv_ctx, NULL);
+ mutex_unlock(&reporter->dump_lock);
+ }
+
+ if (!reporter->auto_recover)
+ return 0;
+
+ devl_lock(devlink);
+ ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL);
+ devl_unlock(devlink);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(devlink_health_report);
+
+void
+devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
+ enum devlink_health_reporter_state state)
+{
+ if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY &&
+ state != DEVLINK_HEALTH_REPORTER_STATE_ERROR))
+ return;
+
+ if (reporter->health_state == state)
+ return;
+
+ reporter->health_state = state;
+ trace_devlink_health_reporter_state_update(reporter->devlink,
+ reporter->ops->name, state);
+ devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
+}
+EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update);
+
+int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_health_reporter *reporter;
+
+ reporter = devlink_health_reporter_get_from_info(devlink, info);
+ if (!reporter)
+ return -EINVAL;
+
+ return devlink_health_reporter_recover(reporter, NULL, info->extack);
+}
diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
index 0b1c5e0122f3..03184dd3d271 100644
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -5963,61 +5963,6 @@ static int devlink_fmsg_dumpit(struct devlink_fmsg *fmsg, struct sk_buff *skb,
return err;
}
-static void devlink_recover_notify(struct devlink_health_reporter *reporter,
- enum devlink_command cmd)
-{
- struct devlink *devlink = reporter->devlink;
- struct sk_buff *msg;
- int err;
-
- WARN_ON(cmd != DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
- WARN_ON(!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED));
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return;
-
- err = devlink_nl_health_reporter_fill(msg, reporter, cmd, 0, 0, 0);
- if (err) {
- nlmsg_free(msg);
- return;
- }
-
- genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg,
- 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
-}
-
-void
-devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter)
-{
- reporter->recovery_count++;
- reporter->last_recovery_ts = jiffies;
-}
-EXPORT_SYMBOL_GPL(devlink_health_reporter_recovery_done);
-
-static int
-devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
- void *priv_ctx, struct netlink_ext_ack *extack)
-{
- int err;
-
- if (reporter->health_state == DEVLINK_HEALTH_REPORTER_STATE_HEALTHY)
- return 0;
-
- if (!reporter->ops->recover)
- return -EOPNOTSUPP;
-
- err = reporter->ops->recover(reporter, priv_ctx, extack);
- if (err)
- return err;
-
- devlink_health_reporter_recovery_done(reporter);
- reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY;
- devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
-
- return 0;
-}
-
static void
devlink_health_dump_clear(struct devlink_health_reporter *reporter)
{
@@ -6027,9 +5972,9 @@ devlink_health_dump_clear(struct devlink_health_reporter *reporter)
reporter->dump_fmsg = NULL;
}
-static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
- void *priv_ctx,
- struct netlink_ext_ack *extack)
+int devlink_health_do_dump(struct devlink_health_reporter *reporter,
+ void *priv_ctx,
+ struct netlink_ext_ack *extack)
{
int err;
@@ -6068,55 +6013,6 @@ static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
return err;
}
-int devlink_health_report(struct devlink_health_reporter *reporter,
- const char *msg, void *priv_ctx)
-{
- enum devlink_health_reporter_state prev_health_state;
- struct devlink *devlink = reporter->devlink;
- unsigned long recover_ts_threshold;
- int ret;
-
- /* write a log message of the current error */
- WARN_ON(!msg);
- trace_devlink_health_report(devlink, reporter->ops->name, msg);
- reporter->error_count++;
- prev_health_state = reporter->health_state;
- reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR;
- devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
-
- /* abort if the previous error wasn't recovered */
- recover_ts_threshold = reporter->last_recovery_ts +
- msecs_to_jiffies(reporter->graceful_period);
- if (reporter->auto_recover &&
- (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY ||
- (reporter->last_recovery_ts && reporter->recovery_count &&
- time_is_after_jiffies(recover_ts_threshold)))) {
- trace_devlink_health_recover_aborted(devlink,
- reporter->ops->name,
- reporter->health_state,
- jiffies -
- reporter->last_recovery_ts);
- return -ECANCELED;
- }
-
- if (reporter->auto_dump) {
- mutex_lock(&reporter->dump_lock);
- /* store current dump of current error, for later analysis */
- devlink_health_do_dump(reporter, priv_ctx, NULL);
- mutex_unlock(&reporter->dump_lock);
- }
-
- if (!reporter->auto_recover)
- return 0;
-
- devl_lock(devlink);
- ret = devlink_health_reporter_recover(reporter, priv_ctx, NULL);
- devl_unlock(devlink);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(devlink_health_report);
-
static struct devlink_health_reporter *
devlink_health_reporter_get_from_cb(struct netlink_callback *cb)
{
@@ -6135,37 +6031,6 @@ devlink_health_reporter_get_from_cb(struct netlink_callback *cb)
return reporter;
}
-void
-devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
- enum devlink_health_reporter_state state)
-{
- if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY &&
- state != DEVLINK_HEALTH_REPORTER_STATE_ERROR))
- return;
-
- if (reporter->health_state == state)
- return;
-
- reporter->health_state = state;
- trace_devlink_health_reporter_state_update(reporter->devlink,
- reporter->ops->name, state);
- devlink_recover_notify(reporter, DEVLINK_CMD_HEALTH_REPORTER_RECOVER);
-}
-EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update);
-
-static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_health_reporter *reporter;
-
- reporter = devlink_health_reporter_get_from_info(devlink, info);
- if (!reporter)
- return -EINVAL;
-
- return devlink_health_reporter_recover(reporter, NULL, info->extack);
-}
-
static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb,
struct genl_info *info)
{
--
2.27.0
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