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Date:   Thu, 10 Oct 2019 15:18:49 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jakub.kicinski@...ronome.com,
        ayal@...lanox.com, moshe@...lanox.com, eranbe@...lanox.com,
        mlxsw@...lanox.com
Subject: [patch net-next v2 2/4] devlink: propagate extack down to health reporter ops

From: Jiri Pirko <jiri@...lanox.com>

During health reporter operations, driver might want to fill-up
the extack message, so propagate extack down to the health reporter ops.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 .../net/ethernet/broadcom/bnxt/bnxt_devlink.c |  9 ++++++---
 .../mellanox/mlx5/core/en/reporter_rx.c       |  6 ++++--
 .../mellanox/mlx5/core/en/reporter_tx.c       |  6 ++++--
 .../net/ethernet/mellanox/mlx5/core/health.c  | 12 +++++++----
 include/net/devlink.h                         |  9 ++++++---
 net/core/devlink.c                            | 20 ++++++++++---------
 6 files changed, 39 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index e664392dccc0..ff1bc0ec2e7c 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -16,7 +16,8 @@
 #include "bnxt_devlink.h"
 
 static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
-				     struct devlink_fmsg *fmsg)
+				     struct devlink_fmsg *fmsg,
+				     struct netlink_ext_ack *extack)
 {
 	struct bnxt *bp = devlink_health_reporter_priv(reporter);
 	struct bnxt_fw_health *health = bp->fw_health;
@@ -66,7 +67,8 @@ static const struct devlink_health_reporter_ops bnxt_dl_fw_reporter_ops = {
 };
 
 static int bnxt_fw_reset_recover(struct devlink_health_reporter *reporter,
-				 void *priv_ctx)
+				 void *priv_ctx,
+				 struct netlink_ext_ack *extack)
 {
 	struct bnxt *bp = devlink_health_reporter_priv(reporter);
 
@@ -84,7 +86,8 @@ struct devlink_health_reporter_ops bnxt_dl_fw_reset_reporter_ops = {
 };
 
 static int bnxt_fw_fatal_recover(struct devlink_health_reporter *reporter,
-				 void *priv_ctx)
+				 void *priv_ctx,
+				 struct netlink_ext_ack *extack)
 {
 	struct bnxt *bp = devlink_health_reporter_priv(reporter);
 	struct bnxt_fw_reporter_ctx *fw_reporter_ctx = priv_ctx;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
index b860569d4247..6c72b592315b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -222,7 +222,8 @@ static int mlx5e_rx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
 }
 
 static int mlx5e_rx_reporter_recover(struct devlink_health_reporter *reporter,
-				     void *context)
+				     void *context,
+				     struct netlink_ext_ack *extack)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
 	struct mlx5e_err_ctx *err_ctx = context;
@@ -301,7 +302,8 @@ static int mlx5e_rx_reporter_build_diagnose_output(struct mlx5e_rq *rq,
 }
 
 static int mlx5e_rx_reporter_diagnose(struct devlink_health_reporter *reporter,
-				      struct devlink_fmsg *fmsg)
+				      struct devlink_fmsg *fmsg,
+				      struct netlink_ext_ack *extack)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
 	struct mlx5e_params *params = &priv->channels.params;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index bfed558637c2..b468549e96ff 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -135,7 +135,8 @@ static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
 }
 
 static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
-				     void *context)
+				     void *context,
+				     struct netlink_ext_ack *extack)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
 	struct mlx5e_err_ctx *err_ctx = context;
@@ -205,7 +206,8 @@ mlx5e_tx_reporter_build_diagnose_output(struct devlink_fmsg *fmsg,
 }
 
 static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
-				      struct devlink_fmsg *fmsg)
+				      struct devlink_fmsg *fmsg,
+				      struct netlink_ext_ack *extack)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
 	struct mlx5e_txqsq *generic_sq = priv->txq2sq[0];
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index d685122d9ff7..be3c3c704bfc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -390,7 +390,8 @@ static void print_health_info(struct mlx5_core_dev *dev)
 
 static int
 mlx5_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
-			  struct devlink_fmsg *fmsg)
+			  struct devlink_fmsg *fmsg,
+			  struct netlink_ext_ack *extack)
 {
 	struct mlx5_core_dev *dev = devlink_health_reporter_priv(reporter);
 	struct mlx5_core_health *health = &dev->priv.health;
@@ -491,7 +492,8 @@ mlx5_fw_reporter_heath_buffer_data_put(struct mlx5_core_dev *dev,
 
 static int
 mlx5_fw_reporter_dump(struct devlink_health_reporter *reporter,
-		      struct devlink_fmsg *fmsg, void *priv_ctx)
+		      struct devlink_fmsg *fmsg, void *priv_ctx,
+		      struct netlink_ext_ack *extack)
 {
 	struct mlx5_core_dev *dev = devlink_health_reporter_priv(reporter);
 	int err;
@@ -545,7 +547,8 @@ static const struct devlink_health_reporter_ops mlx5_fw_reporter_ops = {
 
 static int
 mlx5_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
-			       void *priv_ctx)
+			       void *priv_ctx,
+			       struct netlink_ext_ack *extack)
 {
 	struct mlx5_core_dev *dev = devlink_health_reporter_priv(reporter);
 
@@ -555,7 +558,8 @@ mlx5_fw_fatal_reporter_recover(struct devlink_health_reporter *reporter,
 #define MLX5_CR_DUMP_CHUNK_SIZE 256
 static int
 mlx5_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
-			    struct devlink_fmsg *fmsg, void *priv_ctx)
+			    struct devlink_fmsg *fmsg, void *priv_ctx,
+			    struct netlink_ext_ack *extack)
 {
 	struct mlx5_core_dev *dev = devlink_health_reporter_priv(reporter);
 	u32 crdump_size = dev->priv.health.crdump_size;
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 4095657fc23f..d35a1be107b5 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -507,11 +507,14 @@ enum devlink_health_reporter_state {
 struct devlink_health_reporter_ops {
 	char *name;
 	int (*recover)(struct devlink_health_reporter *reporter,
-		       void *priv_ctx);
+		       void *priv_ctx, struct netlink_ext_ack *extack);
 	int (*dump)(struct devlink_health_reporter *reporter,
-		    struct devlink_fmsg *fmsg, void *priv_ctx);
+		    struct devlink_fmsg *fmsg, void *priv_ctx,
+		    struct netlink_ext_ack *extack);
 	int (*diagnose)(struct devlink_health_reporter *reporter,
-			struct devlink_fmsg *fmsg);
+			struct devlink_fmsg *fmsg,
+			struct netlink_ext_ack *extack);
+
 };
 
 /**
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 95887462eecf..97e9a2246929 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4847,7 +4847,7 @@ EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update);
 
 static int
 devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
-				void *priv_ctx)
+				void *priv_ctx, struct netlink_ext_ack *extack)
 {
 	int err;
 
@@ -4857,7 +4857,7 @@ devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
 	if (!reporter->ops->recover)
 		return -EOPNOTSUPP;
 
-	err = reporter->ops->recover(reporter, priv_ctx);
+	err = reporter->ops->recover(reporter, priv_ctx, extack);
 	if (err)
 		return err;
 
@@ -4878,7 +4878,8 @@ devlink_health_dump_clear(struct devlink_health_reporter *reporter)
 }
 
 static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
-				  void *priv_ctx)
+				  void *priv_ctx,
+				  struct netlink_ext_ack *extack)
 {
 	int err;
 
@@ -4899,7 +4900,7 @@ static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
 		goto dump_err;
 
 	err = reporter->ops->dump(reporter, reporter->dump_fmsg,
-				  priv_ctx);
+				  priv_ctx, extack);
 	if (err)
 		goto dump_err;
 
@@ -4946,11 +4947,12 @@ int devlink_health_report(struct devlink_health_reporter *reporter,
 
 	mutex_lock(&reporter->dump_lock);
 	/* store current dump of current error, for later analysis */
-	devlink_health_do_dump(reporter, priv_ctx);
+	devlink_health_do_dump(reporter, priv_ctx, NULL);
 	mutex_unlock(&reporter->dump_lock);
 
 	if (reporter->auto_recover)
-		return devlink_health_reporter_recover(reporter, priv_ctx);
+		return devlink_health_reporter_recover(reporter,
+						       priv_ctx, NULL);
 
 	return 0;
 }
@@ -5188,7 +5190,7 @@ static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
 	if (!reporter)
 		return -EINVAL;
 
-	err = devlink_health_reporter_recover(reporter, NULL);
+	err = devlink_health_reporter_recover(reporter, NULL, info->extack);
 
 	devlink_health_reporter_put(reporter);
 	return err;
@@ -5221,7 +5223,7 @@ static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb,
 	if (err)
 		goto out;
 
-	err = reporter->ops->diagnose(reporter, fmsg);
+	err = reporter->ops->diagnose(reporter, fmsg, info->extack);
 	if (err)
 		goto out;
 
@@ -5256,7 +5258,7 @@ devlink_nl_cmd_health_reporter_dump_get_dumpit(struct sk_buff *skb,
 	}
 	mutex_lock(&reporter->dump_lock);
 	if (!start) {
-		err = devlink_health_do_dump(reporter, NULL);
+		err = devlink_health_do_dump(reporter, NULL, cb->extack);
 		if (err)
 			goto unlock;
 		cb->args[1] = reporter->dump_ts;
-- 
2.21.0

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