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* [PATCH net-next 05/16] net/mlx5e: Rename reporter header file
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Rename reporter.h -> health.h so patches in the set can use it for
health related functionality.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/health.h      | 15 +++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en/reporter.h    | 15 ---------------
 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c        |  2 +-
 4 files changed, 17 insertions(+), 17 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/health.h
 delete mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/reporter.h

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
new file mode 100644
index 000000000000..e78e92753d73
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 Mellanox Technologies. */
+
+#ifndef __MLX5E_EN_REPORTER_H
+#define __MLX5E_EN_REPORTER_H
+
+#include <linux/mlx5/driver.h>
+#include "en.h"
+
+int mlx5e_tx_reporter_create(struct mlx5e_priv *priv);
+void mlx5e_tx_reporter_destroy(struct mlx5e_priv *priv);
+void mlx5e_tx_reporter_err_cqe(struct mlx5e_txqsq *sq);
+int mlx5e_tx_reporter_timeout(struct mlx5e_txqsq *sq);
+
+#endif
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter.h b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter.h
deleted file mode 100644
index e78e92753d73..000000000000
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (c) 2019 Mellanox Technologies. */
-
-#ifndef __MLX5E_EN_REPORTER_H
-#define __MLX5E_EN_REPORTER_H
-
-#include <linux/mlx5/driver.h>
-#include "en.h"
-
-int mlx5e_tx_reporter_create(struct mlx5e_priv *priv);
-void mlx5e_tx_reporter_destroy(struct mlx5e_priv *priv);
-void mlx5e_tx_reporter_err_cqe(struct mlx5e_txqsq *sq);
-int mlx5e_tx_reporter_timeout(struct mlx5e_txqsq *sq);
-
-#endif
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 83555894bacb..0035ae9306ec 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (c) 2019 Mellanox Technologies. */
 
-#include "reporter.h"
+#include "health.h"
 #include "lib/eq.h"
 
 #define MLX5E_TX_REPORTER_PER_SQ_MAX_LEN 256
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index c5f11a05c34b..ce4533f8169c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -56,7 +56,7 @@
 #include "en/xdp.h"
 #include "lib/eq.h"
 #include "en/monitor_stats.h"
-#include "en/reporter.h"
+#include "en/health.h"
 #include "en/params.h"
 #include "en/xsk/umem.h"
 #include "en/xsk/setup.h"
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 01/16] Revert "net/mlx5e: Fix mlx5e_tx_reporter_create return value"
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

This reverts commit 2e5b0534622fa87fd570d54af2d01ce304b88077.

This commit was needed prior to commit f6b19b354d50 ("net: devlink:
select NET_DEVLINK from drivers") Then, reporter's pointer could have
been a NULL. But with NET_DEVLINK mandatory to MLX5_CORE in Kconfig,
pointer can only hold an error in bad path.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 476dd97f7f2f..24626bb55598 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -302,7 +302,7 @@ int mlx5e_tx_reporter_create(struct mlx5e_priv *priv)
 		netdev_warn(priv->netdev,
 			    "Failed to create tx reporter, err = %ld\n",
 			    PTR_ERR(priv->tx_reporter));
-	return IS_ERR_OR_NULL(priv->tx_reporter);
+	return PTR_ERR_OR_ZERO(priv->tx_reporter);
 }
 
 void mlx5e_tx_reporter_destroy(struct mlx5e_priv *priv)
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 03/16] net/mlx5e: Set tx reporter only on successful creation
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

When failing to create tx reporter, don't set the reporter's pointer.
Creating a reporter is not mandatory for driver load, avoid
garbage/error pointer.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/reporter_tx.c  | 19 +++++++++++--------
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c     |  2 +-
 2 files changed, 12 insertions(+), 9 deletions(-)

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 b2bc8d8ca80e..259811811e06 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -117,7 +117,7 @@ static int mlx5_tx_health_report(struct devlink_health_reporter *tx_reporter,
 				 char *err_str,
 				 struct mlx5e_tx_err_ctx *err_ctx)
 {
-	if (IS_ERR_OR_NULL(tx_reporter)) {
+	if (!tx_reporter) {
 		netdev_err(err_ctx->sq->channel->netdev, err_str);
 		return err_ctx->recover(err_ctx->sq);
 	}
@@ -291,23 +291,26 @@ static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
 
 int mlx5e_tx_reporter_create(struct mlx5e_priv *priv)
 {
+	struct devlink_health_reporter *reporter;
 	struct mlx5_core_dev *mdev = priv->mdev;
 	struct devlink *devlink = priv_to_devlink(mdev);
 
-	priv->tx_reporter =
+	reporter =
 		devlink_health_reporter_create(devlink, &mlx5_tx_reporter_ops,
 					       MLX5_REPORTER_TX_GRACEFUL_PERIOD,
 					       true, priv);
-	if (IS_ERR(priv->tx_reporter))
-		netdev_warn(priv->netdev,
-			    "Failed to create tx reporter, err = %ld\n",
-			    PTR_ERR(priv->tx_reporter));
-	return PTR_ERR_OR_ZERO(priv->tx_reporter);
+	if (IS_ERR(reporter))
+		netdev_warn(priv->netdev, "Failed to create tx reporter, err = %ld\n",
+			    PTR_ERR(reporter));
+	else
+		priv->tx_reporter = reporter;
+
+	return PTR_ERR_OR_ZERO(reporter);
 }
 
 void mlx5e_tx_reporter_destroy(struct mlx5e_priv *priv)
 {
-	if (IS_ERR_OR_NULL(priv->tx_reporter))
+	if (!priv->tx_reporter)
 		return;
 
 	devlink_health_reporter_destroy(priv->tx_reporter);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 83194d56434d..c5f11a05c34b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2320,7 +2320,7 @@ int mlx5e_open_channels(struct mlx5e_priv *priv,
 			goto err_close_channels;
 	}
 
-	if (!IS_ERR_OR_NULL(priv->tx_reporter))
+	if (priv->tx_reporter)
 		devlink_health_reporter_state_update(priv->tx_reporter,
 						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
 
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 10/16] net/mlx5e: Add cq info to tx reporter diagnose
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Add cq information to general diagnose output: CQ size and stride size.
Per SQ add information about the related CQ: cqn and CQ's HW status.

$ devlink health diagnose pci/0000:00:0b.0 reporter tx
Common config:
   SQ: stride size: 64 size: 1024
   CQ: stride size: 64 size: 1024
 SQs:
   channel ix: 0 sqn: 4283 HW state: 1 stopped: false cc: 0 pc: 0 CQ: cqn: 1030 HW status: 0
   channel ix: 1 sqn: 4288 HW state: 1 stopped: false cc: 0 pc: 0 CQ: cqn: 1034 HW status: 0
   channel ix: 2 sqn: 4293 HW state: 1 stopped: false cc: 0 pc: 0 CQ: cqn: 1038 HW status: 0
   channel ix: 3 sqn: 4298 HW state: 1 stopped: false cc: 0 pc: 0 CQ: cqn: 1042 HW status: 0

$ devlink health diagnose pci/0000:00:0b.0 reporter tx -jp
{
    "Common config": [
        "SQ": {
            "stride size": 64,
            "size": 1024
        },
        "CQ": {
            "stride size": 64,
            "size": 1024
        } ],
    "SQs": [ {
            "channel ix": 0,
            "sqn": 4283,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0,
            "CQ": {
                "cqn": 1030,
                "HW status": 0
            }
        },{
            "channel ix": 1,
            "sqn": 4288,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0,
            "CQ": {
                "cqn": 1034,
                "HW status": 0
            }
        },{
            "channel ix": 2,
            "sqn": 4293,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0,
            "CQ": {
                "cqn": 1038,
                "HW status": 0
            }
        },{
            "channel ix": 3,
            "sqn": 4298,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0,
            "CQ": {
                "cqn": 1042,
                "HW status": 0
            }
        } ]
}

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/health.c    | 62 ++++++++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  2 +
 .../ethernet/mellanox/mlx5/core/en/reporter_tx.c   |  8 +++
 drivers/net/ethernet/mellanox/mlx5/core/wq.c       |  5 ++
 drivers/net/ethernet/mellanox/mlx5/core/wq.h       |  1 +
 5 files changed, 78 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
index 0d44b081259f..a266717d41e5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -34,6 +34,68 @@ int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg)
 	return 0;
 }
 
+int mlx5e_reporter_cq_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
+{
+	struct mlx5e_priv *priv = cq->channel->priv;
+	u32 out[MLX5_ST_SZ_DW(query_cq_out)] = {};
+	u8 hw_status;
+	void *cqc;
+	int err;
+
+	err = mlx5_core_query_cq(priv->mdev, &cq->mcq, out, sizeof(out));
+	if (err)
+		return err;
+
+	cqc = MLX5_ADDR_OF(query_cq_out, out, cq_context);
+	hw_status = MLX5_GET(cqc, cqc, status);
+
+	err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "cqn", cq->mcq.cqn);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u8_pair_put(fmsg, "HW status", hw_status);
+	if (err)
+		return err;
+
+	err = mlx5e_reporter_named_obj_nest_end(fmsg);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int mlx5e_reporter_cq_common_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg)
+{
+	u8 cq_log_stride;
+	u32 cq_sz;
+	int err;
+
+	cq_sz = mlx5_cqwq_get_size(&cq->wq);
+	cq_log_stride = mlx5_cqwq_get_log_stride_size(&cq->wq);
+
+	err = mlx5e_reporter_named_obj_nest_start(fmsg, "CQ");
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u64_pair_put(fmsg, "stride size", BIT(cq_log_stride));
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "size", cq_sz);
+	if (err)
+		return err;
+
+	err = mlx5e_reporter_named_obj_nest_end(fmsg);
+	if (err)
+		return err;
+
+	return 0;
+}
+
 int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
 {
 	struct mlx5_core_dev *mdev = channel->mdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index 0fecad63135c..b0c8bda3d25f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -11,6 +11,8 @@
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq);
 int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq);
 
+int mlx5e_reporter_cq_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg);
+int mlx5e_reporter_cq_common_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *fmsg);
 int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name);
 int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg);
 
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 c481f7142a12..47e788cf05bf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -177,6 +177,10 @@ static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
 	if (err)
 		return err;
 
+	err = mlx5e_reporter_cq_diagnose(&sq->cq, fmsg);
+	if (err)
+		return err;
+
 	err = devlink_fmsg_obj_nest_end(fmsg);
 	if (err)
 		return err;
@@ -221,6 +225,10 @@ static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
 	if (err)
 		goto unlock;
 
+	err = mlx5e_reporter_cq_common_diagnose(&generic_sq->cq, fmsg);
+	if (err)
+		goto unlock;
+
 	err = mlx5e_reporter_named_obj_nest_end(fmsg);
 	if (err)
 		goto unlock;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
index 953cc8efba69..dd2315ce4441 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
@@ -44,6 +44,11 @@ u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq)
 	return wq->fbc.sz_m1 + 1;
 }
 
+u8 mlx5_cqwq_get_log_stride_size(struct mlx5_cqwq *wq)
+{
+	return wq->fbc.log_stride;
+}
+
 u32 mlx5_wq_ll_get_size(struct mlx5_wq_ll *wq)
 {
 	return (u32)wq->fbc.sz_m1 + 1;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.h b/drivers/net/ethernet/mellanox/mlx5/core/wq.h
index f1ec58c9e9e3..55791f71a778 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wq.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.h
@@ -89,6 +89,7 @@ int mlx5_cqwq_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
 		     void *cqc, struct mlx5_cqwq *wq,
 		     struct mlx5_wq_ctrl *wq_ctrl);
 u32 mlx5_cqwq_get_size(struct mlx5_cqwq *wq);
+u8 mlx5_cqwq_get_log_stride_size(struct mlx5_cqwq *wq);
 
 int mlx5_wq_ll_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
 		      void *wqc, struct mlx5_wq_ll *wq,
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 11/16] net/mlx5e: Add support to rx reporter diagnose
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Add rx reporter, which supports diagnose call-back. Diagnostics output
include: information common to all RQs: RQ type, RQ size, RQ stride
size, CQ size and CQ stride size. In addition advertise information per
RQ and its related icosq and attached CQ.

$ devlink health diagnose pci/0000:00:0b.0 reporter rx
Common config:
   RQ: type: 2 stride size: 2048 size: 8
   CQ: stride size: 64 size: 1024
 RQs:
   channel ix: 0 rqn: 4284 HW state: 1 SW state: 3 posted WQEs: 7 cc: 7 ICOSQ HW state: 1 CQ: cqn: 1032 HW status: 0
   channel ix: 1 rqn: 4289 HW state: 1 SW state: 3 posted WQEs: 7 cc: 7 ICOSQ HW state: 1 CQ: cqn: 1036 HW status: 0
   channel ix: 2 rqn: 4294 HW state: 1 SW state: 3 posted WQEs: 7 cc: 7 ICOSQ HW state: 1 CQ: cqn: 1040 HW status: 0
   channel ix: 3 rqn: 4299 HW state: 1 SW state: 3 posted WQEs: 7 cc: 7 ICOSQ HW state: 1 CQ: cqn: 1044 HW status: 0

$ devlink health diagnose pci/0000:00:0b.0 reporter rx -jp
{
    "Common config": [
        "RQ": {
            "type": 2,
            "stride size": 2048,
            "size": 8
        },
        "CQ": {
            "stride size": 64,
            "size": 1024
        } ],
    "RQs": [ {
            "channel ix": 0,
            "rqn": 4284,
            "HW state": 1,
            "SW state": 3,
            "posted WQEs": 7,
            "cc": 7,
            "ICOSQ HW state": 1,
            "CQ": {
                "cqn": 1032,
                "HW status": 0
            }
        },{
            "channel ix": 1,
            "rqn": 4289,
            "HW state": 1,
            "SW state": 3,
            "posted WQEs": 7,
            "cc": 7,
            "ICOSQ HW state": 1,
            "CQ": {
                "cqn": 1036,
                "HW status": 0
            }
        },{
            "channel ix": 2,
            "rqn": 4294,
            "HW state": 1,
            "SW state": 3,
            "posted WQEs": 7,
            "cc": 7,
            "ICOSQ HW state": 1,
            "CQ": {
                "cqn": 1040,
                "HW status": 0
            }
        },{
            "channel ix": 3,
            "rqn": 4299,
            "HW state": 1,
            "SW state": 3,
            "posted WQEs": 7,
            "cc": 7,
            "ICOSQ HW state": 1,
            "CQ": {
                "cqn": 1044,
                "HW status": 0
            }
        } ]
}

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/Makefile   |   4 +-
 drivers/net/ethernet/mellanox/mlx5/core/en.h       |  21 +++
 .../net/ethernet/mellanox/mlx5/core/en/health.c    |  31 ++++
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |   7 +
 .../ethernet/mellanox/mlx5/core/en/reporter_rx.c   | 194 +++++++++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  |  29 +--
 6 files changed, 258 insertions(+), 28 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 23d566a45a30..a3b9659649a8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -24,8 +24,8 @@ mlx5_core-y :=	main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
 mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
 		en_tx.o en_rx.o en_dim.o en_txrx.o en/xdp.o en_stats.o \
 		en_selftest.o en/port.o en/monitor_stats.o en/health.o \
-		en/reporter_tx.o en/params.o en/xsk/umem.o en/xsk/setup.o \
-		en/xsk/rx.o en/xsk/tx.o
+		en/reporter_tx.o en/reporter_rx.o en/params.o en/xsk/umem.o \
+		en/xsk/setup.o en/xsk/rx.o en/xsk/tx.o
 
 #
 # Netdev extra
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 263558875f20..f7c5cf7a7064 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -848,6 +848,7 @@ struct mlx5e_priv {
 	struct mlx5e_tls          *tls;
 #endif
 	struct devlink_health_reporter *tx_reporter;
+	struct devlink_health_reporter *rx_reporter;
 	struct mlx5e_xsk           xsk;
 };
 
@@ -888,6 +889,26 @@ netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
 
+static inline u32 mlx5e_rqwq_get_size(struct mlx5e_rq *rq)
+{
+	switch (rq->wq_type) {
+	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
+		return mlx5_wq_ll_get_size(&rq->mpwqe.wq);
+	default:
+		return mlx5_wq_cyc_get_size(&rq->wqe.wq);
+	}
+}
+
+static inline u32 mlx5e_rqwq_get_cur_sz(struct mlx5e_rq *rq)
+{
+	switch (rq->wq_type) {
+	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
+		return rq->mpwqe.wq.cur_sz;
+	default:
+		return rq->wqe.wq.cur_sz;
+	}
+}
+
 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev);
 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
 				struct mlx5e_params *params);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
index a266717d41e5..a0579de8e2e0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -96,6 +96,37 @@ int mlx5e_reporter_cq_common_diagnose(struct mlx5e_cq *cq, struct devlink_fmsg *
 	return 0;
 }
 
+int mlx5e_health_create_reporters(struct mlx5e_priv *priv)
+{
+	int err;
+
+	err = mlx5e_reporter_tx_create(priv);
+	if (err)
+		return err;
+
+	err = mlx5e_reporter_rx_create(priv);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+void mlx5e_health_destroy_reporters(struct mlx5e_priv *priv)
+{
+	mlx5e_reporter_rx_destroy(priv);
+	mlx5e_reporter_tx_destroy(priv);
+}
+
+void mlx5e_health_channels_update(struct mlx5e_priv *priv)
+{
+	if (priv->tx_reporter)
+		devlink_health_reporter_state_update(priv->tx_reporter,
+						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
+	if (priv->rx_reporter)
+		devlink_health_reporter_state_update(priv->rx_reporter,
+						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
+}
+
 int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
 {
 	struct mlx5_core_dev *mdev = channel->mdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index b0c8bda3d25f..7829ea229914 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -16,6 +16,9 @@
 int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name);
 int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg);
 
+int mlx5e_reporter_rx_create(struct mlx5e_priv *priv);
+void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv);
+
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
 
 struct mlx5e_err_ctx {
@@ -29,5 +32,9 @@ struct mlx5e_err_ctx {
 int mlx5e_health_report(struct mlx5e_priv *priv,
 			struct devlink_health_reporter *reporter, char *err_str,
 			struct mlx5e_err_ctx *err_ctx);
+int mlx5e_health_create_reporters(struct mlx5e_priv *priv);
+void mlx5e_health_destroy_reporters(struct mlx5e_priv *priv);
+void mlx5e_health_channels_update(struct mlx5e_priv *priv);
+
 
 #endif
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
new file mode 100644
index 000000000000..b24bdff473b0
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Mellanox Technologies.
+
+#include "health.h"
+#include "params.h"
+
+static int mlx5e_query_rq_state(struct mlx5_core_dev *dev, u32 rqn, u8 *state)
+{
+	int outlen = MLX5_ST_SZ_BYTES(query_rq_out);
+	void *out;
+	void *rqc;
+	int err;
+
+	out = kvzalloc(outlen, GFP_KERNEL);
+	if (!out)
+		return -ENOMEM;
+
+	err = mlx5_core_query_rq(dev, rqn, out);
+	if (err)
+		goto out;
+
+	rqc = MLX5_ADDR_OF(query_rq_out, out, rq_context);
+	*state = MLX5_GET(rqc, rqc, state);
+
+out:
+	kvfree(out);
+	return err;
+}
+
+static int mlx5e_rx_reporter_build_diagnose_output(struct mlx5e_rq *rq,
+						   struct devlink_fmsg *fmsg)
+{
+	struct mlx5e_priv *priv = rq->channel->priv;
+	struct mlx5e_params *params = &priv->channels.params;
+	struct mlx5e_icosq *icosq = &rq->channel->icosq;
+	u8 icosq_hw_state;
+	int wqes_sz;
+	u8 hw_state;
+	u16 wq_head;
+	int err;
+
+	err = mlx5e_query_rq_state(priv->mdev, rq->rqn, &hw_state);
+	if (err)
+		return err;
+
+	err = mlx5_core_query_sq_state(priv->mdev, icosq->sqn, &icosq_hw_state);
+	if (err)
+		return err;
+
+	wqes_sz = mlx5e_rqwq_get_cur_sz(rq);
+	wq_head = params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
+		  rq->mpwqe.wq.head : mlx5_wq_cyc_get_head(&rq->wqe.wq);
+
+	err = devlink_fmsg_obj_nest_start(fmsg);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "channel ix", rq->channel->ix);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "rqn", rq->rqn);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u8_pair_put(fmsg, "HW state", hw_state);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u8_pair_put(fmsg, "SW state", rq->state);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "posted WQEs", wqes_sz);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "cc", wq_head);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u8_pair_put(fmsg, "ICOSQ HW state", icosq_hw_state);
+	if (err)
+		return err;
+
+	err = mlx5e_reporter_cq_diagnose(&rq->cq, fmsg);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_obj_nest_end(fmsg);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int mlx5e_rx_reporter_diagnose(struct devlink_health_reporter *reporter,
+				      struct devlink_fmsg *fmsg)
+{
+	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
+	struct mlx5e_params *params = &priv->channels.params;
+	struct mlx5e_rq *generic_rq;
+	u32 rq_stride, rq_sz;
+	int i, err = 0;
+
+	mutex_lock(&priv->state_lock);
+
+	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+		goto unlock;
+
+	generic_rq = &priv->channels.c[0]->rq;
+	rq_sz = mlx5e_rqwq_get_size(generic_rq);
+	rq_stride = BIT(mlx5e_mpwqe_get_log_stride_size(priv->mdev, params, NULL));
+
+	err = devlink_fmsg_arr_pair_nest_start(fmsg, "Common config");
+	if (err)
+		goto unlock;
+
+	err = mlx5e_reporter_named_obj_nest_start(fmsg, "RQ");
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_u8_pair_put(fmsg, "type", params->rq_wq_type);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_u64_pair_put(fmsg, "stride size", rq_stride);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "size", rq_sz);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_arr_pair_nest_end(fmsg);
+	if (err)
+		goto unlock;
+
+	err = mlx5e_reporter_cq_common_diagnose(&generic_rq->cq, fmsg);
+	if (err)
+		goto unlock;
+
+	err = mlx5e_reporter_named_obj_nest_end(fmsg);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_arr_pair_nest_start(fmsg, "RQs");
+	if (err)
+		goto unlock;
+
+	for (i = 0; i < priv->channels.num; i++) {
+		struct mlx5e_rq *rq = &priv->channels.c[i]->rq;
+
+		err = mlx5e_rx_reporter_build_diagnose_output(rq, fmsg);
+		if (err)
+			goto unlock;
+	}
+	err = devlink_fmsg_arr_pair_nest_end(fmsg);
+	if (err)
+		goto unlock;
+unlock:
+	mutex_unlock(&priv->state_lock);
+	return err;
+}
+
+static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = {
+		.name = "rx",
+		.diagnose = mlx5e_rx_reporter_diagnose,
+};
+
+int mlx5e_reporter_rx_create(struct mlx5e_priv *priv)
+{
+	struct devlink_health_reporter *reporter;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	struct devlink *devlink = priv_to_devlink(mdev);
+
+	reporter =
+		devlink_health_reporter_create(devlink, &mlx5_rx_reporter_ops,
+					       0, false, priv);
+	if (IS_ERR(reporter))
+		netdev_warn(priv->netdev, "Failed to create rx reporter, err = %ld\n",
+			    PTR_ERR(reporter));
+	else
+		priv->tx_reporter = reporter;
+	return PTR_ERR_OR_ZERO(reporter);
+}
+
+void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv)
+{
+	if (!priv->rx_reporter)
+		return;
+
+	devlink_health_reporter_destroy(priv->rx_reporter);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 98c925e72706..3922905e909f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -247,26 +247,6 @@ static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq,
 	ucseg->mkey_mask     = cpu_to_be64(MLX5_MKEY_MASK_FREE);
 }
 
-static u32 mlx5e_rqwq_get_size(struct mlx5e_rq *rq)
-{
-	switch (rq->wq_type) {
-	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
-		return mlx5_wq_ll_get_size(&rq->mpwqe.wq);
-	default:
-		return mlx5_wq_cyc_get_size(&rq->wqe.wq);
-	}
-}
-
-static u32 mlx5e_rqwq_get_cur_sz(struct mlx5e_rq *rq)
-{
-	switch (rq->wq_type) {
-	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
-		return rq->mpwqe.wq.cur_sz;
-	default:
-		return rq->wqe.wq.cur_sz;
-	}
-}
-
 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq,
 				     struct mlx5e_channel *c)
 {
@@ -2320,10 +2300,7 @@ int mlx5e_open_channels(struct mlx5e_priv *priv,
 			goto err_close_channels;
 	}
 
-	if (priv->tx_reporter)
-		devlink_health_reporter_state_update(priv->tx_reporter,
-						     DEVLINK_HEALTH_REPORTER_STATE_HEALTHY);
-
+	mlx5e_health_channels_update(priv);
 	kvfree(cparam);
 	return 0;
 
@@ -3201,7 +3178,6 @@ static void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
 {
 	int tc;
 
-	mlx5e_reporter_tx_destroy(priv);
 	for (tc = 0; tc < priv->profile->max_tc; tc++)
 		mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
 }
@@ -4985,12 +4961,14 @@ static int mlx5e_nic_init(struct mlx5_core_dev *mdev,
 		mlx5_core_err(mdev, "TLS initialization failed, %d\n", err);
 	mlx5e_build_nic_netdev(netdev);
 	mlx5e_build_tc2txq_maps(priv);
+	mlx5e_health_create_reporters(priv);
 
 	return 0;
 }
 
 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
 {
+	mlx5e_health_destroy_reporters(priv);
 	mlx5e_tls_cleanup(priv);
 	mlx5e_ipsec_cleanup(priv);
 	mlx5e_netdev_cleanup(priv->netdev, priv);
@@ -5093,7 +5071,6 @@ static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
 #ifdef CONFIG_MLX5_CORE_EN_DCB
 	mlx5e_dcbnl_initialize(priv);
 #endif
-	mlx5e_reporter_tx_create(priv);
 	return 0;
 }
 
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 09/16] net/mlx5e: Extend tx reporter diagnostics output
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Enhance tx reporter's diagnostics output to include: information common
to all SQs: SQ size, SQ stride size.
In addition add channel ix, cc and pc.

$ devlink health diagnose pci/0000:00:0b.0 reporter tx
Common config:
   SQ: stride size: 64 size: 1024
 SQs:
   channel ix: 0 sqn: 4283 HW state: 1 stopped: false cc: 0 pc: 0
   channel ix: 1 sqn: 4288 HW state: 1 stopped: false cc: 0 pc: 0
   channel ix: 2 sqn: 4293 HW state: 1 stopped: false cc: 0 pc: 0
   channel ix: 3 sqn: 4298 HW state: 1 stopped: false cc: 0 pc: 0

$ devlink health diagnose pci/0000:00:0b.0 reporter tx -jp
{
    "Common config": [
        "SQ": {
            "stride size": 64,
            "size": 1024
        } ],
    "SQs": [ {
            "channel ix": 0,
            "sqn": 4283,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0
        },{
            "channel ix": 1,
            "sqn": 4288,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0
        },{
            "channel ix": 2,
            "sqn": 4293,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0
        },{
            "channel ix": 3,
            "sqn": 4298,
            "HW state": 1,
            "stopped": false,
            "cc": 0,
            "pc": 0
         } ]
}

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/health.c    | 30 ++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  3 ++
 .../ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 42 ++++++++++++++++++++++
 3 files changed, 75 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
index 60166e5432ae..0d44b081259f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -4,6 +4,36 @@
 #include "health.h"
 #include "lib/eq.h"
 
+int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name)
+{
+	int err;
+
+	err = devlink_fmsg_pair_nest_start(fmsg, name);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_obj_nest_start(fmsg);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg)
+{
+	int err;
+
+	err = devlink_fmsg_pair_nest_end(fmsg);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_obj_nest_end(fmsg);
+	if (err)
+		return err;
+
+	return 0;
+}
+
 int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
 {
 	struct mlx5_core_dev *mdev = channel->mdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index 960aa18c425d..0fecad63135c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -11,6 +11,9 @@
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq);
 int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq);
 
+int mlx5e_reporter_named_obj_nest_start(struct devlink_fmsg *fmsg, char *name);
+int mlx5e_reporter_named_obj_nest_end(struct devlink_fmsg *fmsg);
+
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
 
 struct mlx5e_err_ctx {
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 dd6417930461..c481f7142a12 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -153,6 +153,10 @@ static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
 	if (err)
 		return err;
 
+	err = devlink_fmsg_u32_pair_put(fmsg, "channel ix", sq->channel->ix);
+	if (err)
+		return err;
+
 	err = devlink_fmsg_u32_pair_put(fmsg, "sqn", sq->sqn);
 	if (err)
 		return err;
@@ -165,6 +169,14 @@ static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
 	if (err)
 		return err;
 
+	err = devlink_fmsg_u32_pair_put(fmsg, "cc", sq->cc);
+	if (err)
+		return err;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "pc", sq->pc);
+	if (err)
+		return err;
+
 	err = devlink_fmsg_obj_nest_end(fmsg);
 	if (err)
 		return err;
@@ -176,6 +188,9 @@ static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
 				      struct devlink_fmsg *fmsg)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
+	struct mlx5e_txqsq *generic_sq = priv->txq2sq[0];
+	u32 sq_stride, sq_sz;
+
 	int i, err = 0;
 
 	mutex_lock(&priv->state_lock);
@@ -183,6 +198,33 @@ static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
 		goto unlock;
 
+	sq_sz = mlx5_wq_cyc_get_size(&generic_sq->wq);
+	sq_stride = MLX5_SEND_WQE_BB;
+
+	err = devlink_fmsg_arr_pair_nest_start(fmsg, "Common config");
+	if (err)
+		goto unlock;
+
+	err = mlx5e_reporter_named_obj_nest_start(fmsg, "SQ");
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_u64_pair_put(fmsg, "stride size", sq_stride);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_u32_pair_put(fmsg, "size", sq_sz);
+	if (err)
+		goto unlock;
+
+	err = devlink_fmsg_arr_pair_nest_end(fmsg);
+	if (err)
+		goto unlock;
+
+	err = mlx5e_reporter_named_obj_nest_end(fmsg);
+	if (err)
+		goto unlock;
+
 	err = devlink_fmsg_arr_pair_nest_start(fmsg, "SQs");
 	if (err)
 		goto unlock;
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 13/16] net/mlx5e: Recover from CQE error on ICOSQ
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Add support for recovery from error on completion on ICOSQ. Deactivate
RQ and flush, then deactivate ICOSQ. Set the queue back to ready state
(firmware) and reset the ICOSQ and the RQ (software resources). Finally,
activate the ICOSQ and the RQ.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h       |   8 ++
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |   1 +
 .../ethernet/mellanox/mlx5/core/en/reporter_rx.c   | 103 ++++++++++++++++++++-
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  |  23 +++--
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c    |   2 +
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.c |   3 +
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.h |   2 +
 7 files changed, 135 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index f7c5cf7a7064..648641e68de2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -554,6 +554,8 @@ struct mlx5e_icosq {
 	/* control path */
 	struct mlx5_wq_ctrl        wq_ctrl;
 	struct mlx5e_channel      *channel;
+
+	struct work_struct         recover_work;
 } ____cacheline_aligned_in_smp;
 
 struct mlx5e_wqe_frag_info {
@@ -1027,6 +1029,12 @@ void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
 			       struct mlx5e_params *params);
+int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state);
+void mlx5e_activate_rq(struct mlx5e_rq *rq);
+void mlx5e_deactivate_rq(struct mlx5e_rq *rq);
+void mlx5e_free_rx_descs(struct mlx5e_rq *rq);
+void mlx5e_activate_icosq(struct mlx5e_icosq *icosq);
+void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq);
 
 int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
 		    struct mlx5e_modify_sq_param *p);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index 7829ea229914..e8c5d3bd86f1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -18,6 +18,7 @@
 
 int mlx5e_reporter_rx_create(struct mlx5e_priv *priv);
 void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv);
+void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq);
 
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
 
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 b24bdff473b0..c47e9a53bd53 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -27,6 +27,103 @@ static int mlx5e_query_rq_state(struct mlx5_core_dev *dev, u32 rqn, u8 *state)
 	return err;
 }
 
+static int mlx5e_wait_for_icosq_flush(struct mlx5e_icosq *icosq)
+{
+	unsigned long exp_time = jiffies + msecs_to_jiffies(2000);
+
+	while (time_before(jiffies, exp_time)) {
+		if (icosq->cc == icosq->pc)
+			return 0;
+
+		msleep(20);
+	}
+
+	netdev_err(icosq->channel->netdev,
+		   "Wait for ICOSQ 0x%x flush timeout (cc = 0x%x, pc = 0x%x)\n",
+		   icosq->sqn, icosq->cc, icosq->pc);
+
+	return -ETIMEDOUT;
+}
+
+static void mlx5e_reset_icosq_cc_pc(struct mlx5e_icosq *icosq)
+{
+	WARN_ONCE(icosq->cc != icosq->pc, "ICOSQ 0x%x: cc (0x%x) != pc (0x%x)\n",
+		  icosq->sqn, icosq->cc, icosq->pc);
+	icosq->cc = 0;
+	icosq->pc = 0;
+}
+
+static int mlx5e_rx_reporter_err_icosq_cqe_recover(void *ctx)
+{
+	struct mlx5e_icosq *icosq = (struct mlx5e_icosq *)ctx;
+	struct mlx5_core_dev *mdev = icosq->channel->mdev;
+	struct net_device *dev = icosq->channel->netdev;
+	struct mlx5e_rq *rq = &icosq->channel->rq;
+	u8 state;
+	int err;
+
+	err = mlx5_core_query_sq_state(mdev, icosq->sqn, &state);
+	if (err) {
+		netdev_err(dev, "Failed to query ICOSQ 0x%x state. err = %d\n",
+			   icosq->sqn, err);
+		return err;
+	}
+
+	if (state != MLX5_SQC_STATE_ERR)
+		return 0;
+
+	mlx5e_deactivate_rq(rq);
+	err = mlx5e_wait_for_icosq_flush(icosq);
+	if (err)
+		goto out;
+
+	mlx5e_deactivate_icosq(icosq);
+
+	/* At this point, both the rq and the icosq are disabled */
+
+	err = mlx5e_health_sq_to_ready(icosq->channel, icosq->sqn);
+	if (err)
+		goto out;
+
+	mlx5e_reset_icosq_cc_pc(icosq);
+	mlx5e_free_rx_descs(rq);
+	mlx5e_activate_icosq(icosq);
+	mlx5e_activate_rq(rq);
+
+	rq->stats->recover++;
+out:
+	clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
+	return err;
+}
+
+void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
+{
+	struct mlx5e_priv *priv = icosq->channel->priv;
+	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
+	struct mlx5e_err_ctx err_ctx = {};
+
+	err_ctx.ctx = icosq;
+	err_ctx.recover = mlx5e_rx_reporter_err_icosq_cqe_recover;
+	sprintf(err_str, "ERR CQE on ICOSQ: 0x%x", icosq->sqn);
+
+	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
+}
+
+static int mlx5e_rx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
+{
+	return err_ctx->recover(err_ctx->ctx);
+}
+
+static int mlx5e_rx_reporter_recover(struct devlink_health_reporter *reporter,
+				     void *context)
+{
+	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
+	struct mlx5e_err_ctx *err_ctx = context;
+
+	return err_ctx ? mlx5e_rx_reporter_recover_from_ctx(err_ctx) :
+			 mlx5e_health_recover_channels(priv);
+}
+
 static int mlx5e_rx_reporter_build_diagnose_output(struct mlx5e_rq *rq,
 						   struct devlink_fmsg *fmsg)
 {
@@ -165,9 +262,12 @@ static int mlx5e_rx_reporter_diagnose(struct devlink_health_reporter *reporter,
 
 static const struct devlink_health_reporter_ops mlx5_rx_reporter_ops = {
 		.name = "rx",
+		.recover = mlx5e_rx_reporter_recover,
 		.diagnose = mlx5e_rx_reporter_diagnose,
 };
 
+#define MLX5E_REPORTER_RX_GRACEFUL_PERIOD 500
+
 int mlx5e_reporter_rx_create(struct mlx5e_priv *priv)
 {
 	struct devlink_health_reporter *reporter;
@@ -176,7 +276,8 @@ int mlx5e_reporter_rx_create(struct mlx5e_priv *priv)
 
 	reporter =
 		devlink_health_reporter_create(devlink, &mlx5_rx_reporter_ops,
-					       0, false, priv);
+					       MLX5E_REPORTER_RX_GRACEFUL_PERIOD,
+					       true, priv);
 	if (IS_ERR(reporter))
 		netdev_warn(priv->netdev, "Failed to create rx reporter, err = %ld\n",
 			    PTR_ERR(reporter));
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 7e6ac1e7bdd1..2d57611ac579 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -701,8 +701,7 @@ static int mlx5e_create_rq(struct mlx5e_rq *rq,
 	return err;
 }
 
-static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
-				 int next_state)
+int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state)
 {
 	struct mlx5_core_dev *mdev = rq->mdev;
 
@@ -813,7 +812,7 @@ int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time)
 	return -ETIMEDOUT;
 }
 
-static void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
+void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
 {
 	__be16 wqe_ix_be;
 	u16 wqe_ix;
@@ -889,7 +888,7 @@ int mlx5e_open_rq(struct mlx5e_channel *c, struct mlx5e_params *params,
 	return err;
 }
 
-static void mlx5e_activate_rq(struct mlx5e_rq *rq)
+void mlx5e_activate_rq(struct mlx5e_rq *rq)
 {
 	set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
 	mlx5e_trigger_irq(&rq->channel->icosq);
@@ -904,6 +903,7 @@ void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
 void mlx5e_close_rq(struct mlx5e_rq *rq)
 {
 	cancel_work_sync(&rq->dim.work);
+	cancel_work_sync(&rq->channel->icosq.recover_work);
 	mlx5e_destroy_rq(rq);
 	mlx5e_free_rx_descs(rq);
 	mlx5e_free_rq(rq);
@@ -1020,6 +1020,14 @@ static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa)
 	return 0;
 }
 
+static void mlx5e_icosq_err_cqe_work(struct work_struct *recover_work)
+{
+	struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq,
+					      recover_work);
+
+	mlx5e_reporter_icosq_cqe_err(sq);
+}
+
 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 			     struct mlx5e_sq_param *param,
 			     struct mlx5e_icosq *sq)
@@ -1042,6 +1050,8 @@ static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 	if (err)
 		goto err_sq_wq_destroy;
 
+	INIT_WORK(&sq->recover_work, mlx5e_icosq_err_cqe_work);
+
 	return 0;
 
 err_sq_wq_destroy:
@@ -1385,12 +1395,13 @@ int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
 	return err;
 }
 
-static void mlx5e_activate_icosq(struct mlx5e_icosq *icosq)
+void mlx5e_activate_icosq(struct mlx5e_icosq *icosq)
 {
+	clear_bit(MLX5E_SQ_STATE_RECOVERING, &icosq->state);
 	set_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
 }
 
-static void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
+void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
 {
 	struct mlx5e_channel *c = icosq->channel;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 56a2f4666c47..4173679254bf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -615,6 +615,8 @@ void mlx5e_poll_ico_cq(struct mlx5e_cq *cq)
 		if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_REQ)) {
 			netdev_WARN_ONCE(cq->channel->netdev,
 					 "Bad OP in ICOSQ CQE: 0x%x\n", get_cqe_opcode(cqe));
+			if (!test_and_set_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state))
+				queue_work(cq->channel->priv->wq, &sq->recover_work);
 			break;
 		}
 		do {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index 539b4d3656da..7de3d87dc434 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -107,6 +107,7 @@
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_cache_waive) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_congst_umr) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_arfs_err) },
+	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_recover) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, ch_events) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, ch_poll) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, ch_arm) },
@@ -217,6 +218,7 @@ static void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv)
 		s->rx_cache_waive += rq_stats->cache_waive;
 		s->rx_congst_umr  += rq_stats->congst_umr;
 		s->rx_arfs_err    += rq_stats->arfs_err;
+		s->rx_recover     += rq_stats->recover;
 		s->ch_events      += ch_stats->events;
 		s->ch_poll        += ch_stats->poll;
 		s->ch_arm         += ch_stats->arm;
@@ -1294,6 +1296,7 @@ static int mlx5e_grp_tls_fill_stats(struct mlx5e_priv *priv, u64 *data, int idx)
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, cache_waive) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, congst_umr) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, arfs_err) },
+	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, recover) },
 };
 
 static const struct counter_desc sq_stats_desc[] = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 76ac111e14d0..a50caa70453c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -114,6 +114,7 @@ struct mlx5e_sw_stats {
 	u64 rx_cache_waive;
 	u64 rx_congst_umr;
 	u64 rx_arfs_err;
+	u64 rx_recover;
 	u64 ch_events;
 	u64 ch_poll;
 	u64 ch_arm;
@@ -247,6 +248,7 @@ struct mlx5e_rq_stats {
 	u64 cache_waive;
 	u64 congst_umr;
 	u64 arfs_err;
+	u64 recover;
 };
 
 struct mlx5e_sq_stats {
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 07/16] net/mlx5e: Generalize tx reporter's functionality
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Prepare for code sharing with rx reporter, which is added in the
following patches in the set. Introduce a generic error_ctx for
agnostic recovery despatch.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/Makefile   |   5 +-
 .../net/ethernet/mellanox/mlx5/core/en/health.c    |  82 ++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  15 ++-
 .../ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 126 ++++-----------------
 4 files changed, 124 insertions(+), 104 deletions(-)
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/en/health.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 57d2cc666fe3..23d566a45a30 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -23,8 +23,9 @@ mlx5_core-y :=	main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
 #
 mlx5_core-$(CONFIG_MLX5_CORE_EN) += en_main.o en_common.o en_fs.o en_ethtool.o \
 		en_tx.o en_rx.o en_dim.o en_txrx.o en/xdp.o en_stats.o \
-		en_selftest.o en/port.o en/monitor_stats.o en/reporter_tx.o \
-		en/params.o en/xsk/umem.o en/xsk/setup.o en/xsk/rx.o en/xsk/tx.o
+		en_selftest.o en/port.o en/monitor_stats.o en/health.o \
+		en/reporter_tx.o en/params.o en/xsk/umem.o en/xsk/setup.o \
+		en/xsk/rx.o en/xsk/tx.o
 
 #
 # Netdev extra
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.c b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
new file mode 100644
index 000000000000..60166e5432ae
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Mellanox Technologies.
+
+#include "health.h"
+#include "lib/eq.h"
+
+int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn)
+{
+	struct mlx5_core_dev *mdev = channel->mdev;
+	struct net_device *dev = channel->netdev;
+	struct mlx5e_modify_sq_param msp = {0};
+	int err;
+
+	msp.curr_state = MLX5_SQC_STATE_ERR;
+	msp.next_state = MLX5_SQC_STATE_RST;
+
+	err = mlx5e_modify_sq(mdev, sqn, &msp);
+	if (err) {
+		netdev_err(dev, "Failed to move sq 0x%x to reset\n", sqn);
+		return err;
+	}
+
+	memset(&msp, 0, sizeof(msp));
+	msp.curr_state = MLX5_SQC_STATE_RST;
+	msp.next_state = MLX5_SQC_STATE_RDY;
+
+	err = mlx5e_modify_sq(mdev, sqn, &msp);
+	if (err) {
+		netdev_err(dev, "Failed to move sq 0x%x to ready\n", sqn);
+		return err;
+	}
+
+	return 0;
+}
+
+int mlx5e_health_recover_channels(struct mlx5e_priv *priv)
+{
+	int err = 0;
+
+	rtnl_lock();
+	mutex_lock(&priv->state_lock);
+
+	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
+		goto out;
+
+	err = mlx5e_safe_reopen_channels(priv);
+
+out:
+	mutex_unlock(&priv->state_lock);
+	rtnl_unlock();
+
+	return err;
+}
+
+int mlx5e_health_channel_eq_recover(struct mlx5_eq_comp *eq, struct mlx5e_channel *channel)
+{
+	u32 eqe_count;
+
+	netdev_err(channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
+		   eq->core.eqn, eq->core.cons_index, eq->core.irqn);
+
+	eqe_count = mlx5_eq_poll_irq_disabled(eq);
+	if (!eqe_count)
+		return -EIO;
+
+	netdev_err(channel->netdev, "Recovered %d eqes on EQ 0x%x\n",
+		   eqe_count, eq->core.eqn);
+
+	channel->stats->eq_rearm++;
+	return 0;
+}
+
+int mlx5e_health_report(struct mlx5e_priv *priv,
+			struct devlink_health_reporter *reporter, char *err_str,
+			struct mlx5e_err_ctx *err_ctx)
+{
+	if (!reporter) {
+		netdev_err(priv->netdev, err_str);
+		return err_ctx->recover(&err_ctx->ctx);
+	}
+	return devlink_health_report(reporter, err_str, err_ctx);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index e3a3bcee89e7..960aa18c425d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -4,7 +4,6 @@
 #ifndef __MLX5E_EN_REPORTER_H
 #define __MLX5E_EN_REPORTER_H
 
-#include <linux/mlx5/driver.h>
 #include "en.h"
 
 int mlx5e_reporter_tx_create(struct mlx5e_priv *priv);
@@ -12,4 +11,18 @@
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq);
 int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq);
 
+#define MLX5E_REPORTER_PER_Q_MAX_LEN 256
+
+struct mlx5e_err_ctx {
+	int (*recover)(void *ctx);
+	void *ctx;
+};
+
+int mlx5e_health_sq_to_ready(struct mlx5e_channel *channel, u32 sqn);
+int mlx5e_health_channel_eq_recover(struct mlx5_eq_comp *eq, struct mlx5e_channel *channel);
+int mlx5e_health_recover_channels(struct mlx5e_priv *priv);
+int mlx5e_health_report(struct mlx5e_priv *priv,
+			struct devlink_health_reporter *reporter, char *err_str,
+			struct mlx5e_err_ctx *err_ctx);
+
 #endif
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 d5ecfcfe5d52..3e03a1ac8e5a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -2,14 +2,6 @@
 /* Copyright (c) 2019 Mellanox Technologies. */
 
 #include "health.h"
-#include "lib/eq.h"
-
-#define MLX5E_TX_REPORTER_PER_SQ_MAX_LEN 256
-
-struct mlx5e_tx_err_ctx {
-	int (*recover)(struct mlx5e_txqsq *sq);
-	struct mlx5e_txqsq *sq;
-};
 
 static int mlx5e_wait_for_sq_flush(struct mlx5e_txqsq *sq)
 {
@@ -39,37 +31,9 @@ static void mlx5e_reset_txqsq_cc_pc(struct mlx5e_txqsq *sq)
 	sq->pc = 0;
 }
 
-static int mlx5e_sq_to_ready(struct mlx5e_txqsq *sq, int curr_state)
-{
-	struct mlx5_core_dev *mdev = sq->channel->mdev;
-	struct net_device *dev = sq->channel->netdev;
-	struct mlx5e_modify_sq_param msp = {0};
-	int err;
-
-	msp.curr_state = curr_state;
-	msp.next_state = MLX5_SQC_STATE_RST;
-
-	err = mlx5e_modify_sq(mdev, sq->sqn, &msp);
-	if (err) {
-		netdev_err(dev, "Failed to move sq 0x%x to reset\n", sq->sqn);
-		return err;
-	}
-
-	memset(&msp, 0, sizeof(msp));
-	msp.curr_state = MLX5_SQC_STATE_RST;
-	msp.next_state = MLX5_SQC_STATE_RDY;
-
-	err = mlx5e_modify_sq(mdev, sq->sqn, &msp);
-	if (err) {
-		netdev_err(dev, "Failed to move sq 0x%x to ready\n", sq->sqn);
-		return err;
-	}
-
-	return 0;
-}
-
-static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
+static int mlx5e_tx_reporter_err_cqe_recover(void *ctx)
 {
+	struct mlx5e_txqsq *sq = (struct mlx5e_txqsq *)ctx;
 	struct mlx5_core_dev *mdev = sq->channel->mdev;
 	struct net_device *dev = sq->channel->netdev;
 	u8 state;
@@ -101,7 +65,7 @@ static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
 	 * pending WQEs. SQ can safely reset the SQ.
 	 */
 
-	err = mlx5e_sq_to_ready(sq, state);
+	err = mlx5e_health_sq_to_ready(sq->channel, sq->sqn);
 	if (err)
 		return err;
 
@@ -112,104 +76,64 @@ static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
 	return 0;
 }
 
-static int mlx5_tx_health_report(struct devlink_health_reporter *tx_reporter,
-				 char *err_str,
-				 struct mlx5e_tx_err_ctx *err_ctx)
-{
-	if (!tx_reporter) {
-		netdev_err(err_ctx->sq->channel->netdev, err_str);
-		return err_ctx->recover(err_ctx->sq);
-	}
-
-	return devlink_health_report(tx_reporter, err_str, err_ctx);
-}
-
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq)
 {
-	char err_str[MLX5E_TX_REPORTER_PER_SQ_MAX_LEN];
-	struct mlx5e_tx_err_ctx err_ctx = {0};
+	struct mlx5e_priv *priv = sq->channel->priv;
+	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
+	struct mlx5e_err_ctx err_ctx = {0};
 
-	err_ctx.sq       = sq;
-	err_ctx.recover  = mlx5e_tx_reporter_err_cqe_recover;
+	err_ctx.ctx = sq;
+	err_ctx.recover = mlx5e_tx_reporter_err_cqe_recover;
 	sprintf(err_str, "ERR CQE on SQ: 0x%x", sq->sqn);
 
-	mlx5_tx_health_report(sq->channel->priv->tx_reporter, err_str,
-			      &err_ctx);
+	mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
 }
 
-static int mlx5e_tx_reporter_timeout_recover(struct mlx5e_txqsq *sq)
+static int mlx5e_tx_reporter_timeout_recover(void *ctx)
 {
+	struct mlx5e_txqsq *sq = (struct mlx5e_txqsq *)ctx;
 	struct mlx5_eq_comp *eq = sq->cq.mcq.eq;
-	u32 eqe_count;
-	int ret;
-
-	netdev_err(sq->channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
-		   eq->core.eqn, eq->core.cons_index, eq->core.irqn);
+	int err;
 
-	eqe_count = mlx5_eq_poll_irq_disabled(eq);
-	ret = eqe_count ? false : true;
-	if (!eqe_count) {
+	err = mlx5e_health_channel_eq_recover(eq, sq->channel);
+	if (err)
 		clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
-		return ret;
-	}
 
-	netdev_err(sq->channel->netdev, "Recover %d eqes on EQ 0x%x\n",
-		   eqe_count, eq->core.eqn);
-	sq->channel->stats->eq_rearm++;
-	return ret;
+	return err;
 }
 
 int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq)
 {
-	char err_str[MLX5E_TX_REPORTER_PER_SQ_MAX_LEN];
-	struct mlx5e_tx_err_ctx err_ctx;
+	struct mlx5e_priv *priv = sq->channel->priv;
+	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
+	struct mlx5e_err_ctx err_ctx;
 
-	err_ctx.sq       = sq;
-	err_ctx.recover  = mlx5e_tx_reporter_timeout_recover;
+	err_ctx.ctx = sq;
+	err_ctx.recover = mlx5e_tx_reporter_timeout_recover;
 	sprintf(err_str,
 		"TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u\n",
 		sq->channel->ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
 		jiffies_to_usecs(jiffies - sq->txq->trans_start));
 
-	return mlx5_tx_health_report(sq->channel->priv->tx_reporter, err_str,
-				     &err_ctx);
+	return mlx5e_health_report(priv, priv->tx_reporter, err_str, &err_ctx);
 }
 
 /* state lock cannot be grabbed within this function.
  * It can cause a dead lock or a read-after-free.
  */
-static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_tx_err_ctx *err_ctx)
+static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
 {
-	return err_ctx->recover(err_ctx->sq);
-}
-
-static int mlx5e_tx_reporter_recover_all(struct mlx5e_priv *priv)
-{
-	int err = 0;
-
-	rtnl_lock();
-	mutex_lock(&priv->state_lock);
-
-	if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
-		goto out;
-
-	err = mlx5e_safe_reopen_channels(priv);
-
-out:
-	mutex_unlock(&priv->state_lock);
-	rtnl_unlock();
-
-	return err;
+	return err_ctx->recover(err_ctx->ctx);
 }
 
 static int mlx5e_tx_reporter_recover(struct devlink_health_reporter *reporter,
 				     void *context)
 {
 	struct mlx5e_priv *priv = devlink_health_reporter_priv(reporter);
-	struct mlx5e_tx_err_ctx *err_ctx = context;
+	struct mlx5e_err_ctx *err_ctx = context;
 
 	return err_ctx ? mlx5e_tx_reporter_recover_from_ctx(err_ctx) :
-			 mlx5e_tx_reporter_recover_all(priv);
+			 mlx5e_health_recover_channels(priv);
 }
 
 static int
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 04/16] net/mlx5e: TX reporter cleanup
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Remove redundant include file.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c | 1 -
 1 file changed, 1 deletion(-)

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 259811811e06..83555894bacb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (c) 2019 Mellanox Technologies. */
 
-#include <net/devlink.h>
 #include "reporter.h"
 #include "lib/eq.h"
 
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 02/16] net/mlx5e: Fix error flow in tx reporter diagnose
From: Tariq Toukan @ 2019-07-07 11:52 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Fix tx reporter's diagnose call back. Propagate error when failing to
gather diagnostics information or failing to print diagnostic data per
queue.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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 24626bb55598..b2bc8d8ca80e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -264,13 +264,13 @@ static int mlx5e_tx_reporter_diagnose(struct devlink_health_reporter *reporter,
 
 		err = mlx5_core_query_sq_state(priv->mdev, sq->sqn, &state);
 		if (err)
-			break;
+			goto unlock;
 
 		err = mlx5e_tx_reporter_build_diagnose_output(fmsg, sq->sqn,
 							      state,
 							      netif_xmit_stopped(sq->txq));
 		if (err)
-			break;
+			goto unlock;
 	}
 	err = devlink_fmsg_arr_pair_nest_end(fmsg);
 	if (err)
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 15/16] net/mlx5e: RX, Handle CQE with error at the earliest stage
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Saeed Mahameed <saeedm@mellanox.com>

Just to be aligned with the MPWQE handlers, handle RX WQE with error
for legacy RQs in the top RX handlers, just before calling skb_from_cqe().

CQE error handling will now be called at the same stage regardless of
the RQ type or netdev mode NIC, Representor, IPoIB, etc ..

This will be useful for down stream patches to improve error CQE
handling.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  2 +
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c    | 49 ++++++++++++----------
 2 files changed, 30 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index aa46f7ecae53..435e31ad1cfb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -6,6 +6,8 @@
 
 #include "en.h"
 
+#define MLX5E_RX_ERR_CQE(cqe) (get_cqe_opcode(cqe) != MLX5_CQE_RESP_SEND)
+
 int mlx5e_reporter_tx_create(struct mlx5e_priv *priv);
 void mlx5e_reporter_tx_destroy(struct mlx5e_priv *priv);
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 4173679254bf..3b730d3436e6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -48,6 +48,7 @@
 #include "lib/clock.h"
 #include "en/xdp.h"
 #include "en/xsk/rx.h"
+#include "en/health.h"
 
 static inline bool mlx5e_rx_hw_stamp(struct hwtstamp_config *config)
 {
@@ -1062,11 +1063,6 @@ struct sk_buff *
 	prefetchw(va); /* xdp_frame data area */
 	prefetch(data);
 
-	if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_RESP_SEND)) {
-		rq->stats->wqe_err++;
-		return NULL;
-	}
-
 	rcu_read_lock();
 	consumed = mlx5e_xdp_handle(rq, di, va, &rx_headroom, &cqe_bcnt, false);
 	rcu_read_unlock();
@@ -1094,11 +1090,6 @@ struct sk_buff *
 	u16 byte_cnt     = cqe_bcnt - headlen;
 	struct sk_buff *skb;
 
-	if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_RESP_SEND)) {
-		rq->stats->wqe_err++;
-		return NULL;
-	}
-
 	/* XDP is not supported in this configuration, as incoming packets
 	 * might spread among multiple pages.
 	 */
@@ -1144,6 +1135,11 @@ void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	wi       = get_frag(rq, ci);
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
+	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		rq->stats->wqe_err++;
+		goto free_wqe;
+	}
+
 	skb = INDIRECT_CALL_2(rq->wqe.skb_from_cqe,
 			      mlx5e_skb_from_cqe_linear,
 			      mlx5e_skb_from_cqe_nonlinear,
@@ -1185,6 +1181,11 @@ void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	wi       = get_frag(rq, ci);
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
+	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		rq->stats->wqe_err++;
+		goto free_wqe;
+	}
+
 	skb = rq->wqe.skb_from_cqe(rq, cqe, wi, cqe_bcnt);
 	if (!skb) {
 		/* probably for XDP */
@@ -1319,7 +1320,7 @@ void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 
 	wi->consumed_strides += cstrides;
 
-	if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_RESP_SEND)) {
+	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
 		rq->stats->wqe_err++;
 		goto mpwrq_cqe_out;
 	}
@@ -1495,6 +1496,11 @@ void mlx5i_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	wi       = get_frag(rq, ci);
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
+	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		rq->stats->wqe_err++;
+		goto wq_free_wqe;
+	}
+
 	skb = INDIRECT_CALL_2(rq->wqe.skb_from_cqe,
 			      mlx5e_skb_from_cqe_linear,
 			      mlx5e_skb_from_cqe_nonlinear,
@@ -1530,26 +1536,27 @@ void mlx5e_ipsec_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	wi       = get_frag(rq, ci);
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
+	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		rq->stats->wqe_err++;
+		goto wq_free_wqe;
+	}
+
 	skb = INDIRECT_CALL_2(rq->wqe.skb_from_cqe,
 			      mlx5e_skb_from_cqe_linear,
 			      mlx5e_skb_from_cqe_nonlinear,
 			      rq, cqe, wi, cqe_bcnt);
-	if (unlikely(!skb)) {
-		/* a DROP, save the page-reuse checks */
-		mlx5e_free_rx_wqe(rq, wi, true);
-		goto wq_cyc_pop;
-	}
+	if (unlikely(!skb)) /* a DROP, save the page-reuse checks */
+		goto wq_free_wqe;
+
 	skb = mlx5e_ipsec_handle_rx_skb(rq->netdev, skb, &cqe_bcnt);
-	if (unlikely(!skb)) {
-		mlx5e_free_rx_wqe(rq, wi, true);
-		goto wq_cyc_pop;
-	}
+	if (unlikely(!skb))
+		goto wq_free_wqe;
 
 	mlx5e_complete_rx_cqe(rq, cqe, cqe_bcnt, skb);
 	napi_gro_receive(rq->cq.napi, skb);
 
+wq_free_wqe:
 	mlx5e_free_rx_wqe(rq, wi, true);
-wq_cyc_pop:
 	mlx5_wq_cyc_pop(wq);
 }
 
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 12/16] net/mlx5e: Split open/close ICOSQ into stages
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Align ICOSQ open/close behaviour with RQ and SQ. Split open flow into
open and activate where open handles creation and activate enables the
queue. Do a symmetric thing in close flow: split into close and
deactivate.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 3922905e909f..7e6ac1e7bdd1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1372,7 +1372,6 @@ int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
 	csp.cqn             = sq->cq.mcq.cqn;
 	csp.wq_ctrl         = &sq->wq_ctrl;
 	csp.min_inline_mode = params->tx_min_inline_mode;
-	set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
 	err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
 	if (err)
 		goto err_free_icosq;
@@ -1386,12 +1385,22 @@ int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
 	return err;
 }
 
-void mlx5e_close_icosq(struct mlx5e_icosq *sq)
+static void mlx5e_activate_icosq(struct mlx5e_icosq *icosq)
 {
-	struct mlx5e_channel *c = sq->channel;
+	set_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
+}
 
-	clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
+static void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
+{
+	struct mlx5e_channel *c = icosq->channel;
+
+	clear_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
 	napi_synchronize(&c->napi);
+}
+
+void mlx5e_close_icosq(struct mlx5e_icosq *sq)
+{
+	struct mlx5e_channel *c = sq->channel;
 
 	mlx5e_destroy_sq(c->mdev, sq->sqn);
 	mlx5e_free_icosq(sq);
@@ -1968,6 +1977,7 @@ static void mlx5e_activate_channel(struct mlx5e_channel *c)
 
 	for (tc = 0; tc < c->num_tc; tc++)
 		mlx5e_activate_txqsq(&c->sq[tc]);
+	mlx5e_activate_icosq(&c->icosq);
 	mlx5e_activate_rq(&c->rq);
 	netif_set_xps_queue(c->netdev, c->xps_cpumask, c->ix);
 
@@ -1983,6 +1993,7 @@ static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
 		mlx5e_deactivate_xsk(c);
 
 	mlx5e_deactivate_rq(&c->rq);
+	mlx5e_deactivate_icosq(&c->icosq);
 	for (tc = 0; tc < c->num_tc; tc++)
 		mlx5e_deactivate_txqsq(&c->sq[tc]);
 }
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 14/16] net/mlx5e: Recover from rx timeout
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Add support for recovery from rx timeout. On driver open we post NOP
work request on the rx channels to trigger napi in order to fillup the
rx rings. In case napi wasn't scheduled due to a lost interrupt, perform
EQ recovery.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  1 +
 .../ethernet/mellanox/mlx5/core/en/reporter_rx.c   | 30 ++++++++++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  |  1 +
 3 files changed, 32 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index e8c5d3bd86f1..aa46f7ecae53 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -19,6 +19,7 @@
 int mlx5e_reporter_rx_create(struct mlx5e_priv *priv);
 void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv);
 void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq);
+void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq);
 
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
 
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 c47e9a53bd53..7e7dba129330 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -109,6 +109,36 @@ void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
 
+static int mlx5e_rx_reporter_timeout_recover(void *ctx)
+{
+	struct mlx5e_rq *rq = (struct mlx5e_rq *)ctx;
+	struct mlx5e_icosq *icosq = &rq->channel->icosq;
+	struct mlx5_eq_comp *eq = rq->cq.mcq.eq;
+	int err;
+
+	err = mlx5e_health_channel_eq_recover(eq, rq->channel);
+	if (err)
+		clear_bit(MLX5E_SQ_STATE_ENABLED, &icosq->state);
+
+	return err;
+}
+
+void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq)
+{
+	struct mlx5e_icosq *icosq = &rq->channel->icosq;
+	struct mlx5e_priv *priv = rq->channel->priv;
+	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
+	struct mlx5e_err_ctx err_ctx = {};
+
+	err_ctx.ctx = rq;
+	err_ctx.recover = mlx5e_rx_reporter_timeout_recover;
+	sprintf(err_str,
+		"RX timeout on channel: %d, ICOSQ: 0x%x RQ: 0x%x, CQ: 0x%x\n",
+		icosq->channel->ix, icosq->sqn, rq->rqn, rq->cq.mcq.cqn);
+
+	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
+}
+
 static int mlx5e_rx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
 {
 	return err_ctx->recover(err_ctx->ctx);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 2d57611ac579..1ebdeccf395d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -809,6 +809,7 @@ int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time)
 	netdev_warn(c->netdev, "Failed to get min RX wqes on Channel[%d] RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n",
 		    c->ix, rq->rqn, mlx5e_rqwq_get_cur_sz(rq), min_wqes);
 
+	mlx5e_reporter_rx_timeout(rq);
 	return -ETIMEDOUT;
 }
 
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next 16/16] net/mlx5e: Recover from CQE with error on RQ
From: Tariq Toukan @ 2019-07-07 11:53 UTC (permalink / raw)
  To: David S. Miller
  Cc: netdev, Eran Ben Elisha, ayal, jiri, Saeed Mahameed, moshe,
	Tariq Toukan
In-Reply-To: <1562500388-16847-1-git-send-email-tariqt@mellanox.com>

From: Aya Levin <ayal@mellanox.com>

Add support for recovery from error on completion on RQ by setting
the queue back to ready state. Handle only errors with a syndrome
indicating the RQ might enter error state and could be recovered.

Signed-off-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h       |  3 +
 .../net/ethernet/mellanox/mlx5/core/en/health.h    |  9 +++
 .../ethernet/mellanox/mlx5/core/en/reporter_rx.c   | 65 ++++++++++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c  | 10 ++++
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c    | 11 ++++
 5 files changed, 98 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 648641e68de2..bf39ce19303d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -303,6 +303,7 @@ struct mlx5e_dcbx_dp {
 
 enum {
 	MLX5E_RQ_STATE_ENABLED,
+	MLX5E_RQ_STATE_RECOVERING,
 	MLX5E_RQ_STATE_AM,
 	MLX5E_RQ_STATE_NO_CSUM_COMPLETE,
 };
@@ -675,6 +676,8 @@ struct mlx5e_rq {
 	struct zero_copy_allocator zca;
 	struct xdp_umem       *umem;
 
+	struct work_struct     recover_work;
+
 	/* control */
 	struct mlx5_wq_ctrl    wq_ctrl;
 	__be32                 mkey_be;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
index 435e31ad1cfb..198ef625005c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -8,6 +8,14 @@
 
 #define MLX5E_RX_ERR_CQE(cqe) (get_cqe_opcode(cqe) != MLX5_CQE_RESP_SEND)
 
+static inline bool cqe_syndrome_needs_recover(u8 syndrome)
+{
+	return syndrome == MLX5_CQE_SYNDROME_LOCAL_LENGTH_ERR ||
+	       syndrome == MLX5_CQE_SYNDROME_LOCAL_QP_OP_ERR ||
+	       syndrome == MLX5_CQE_SYNDROME_LOCAL_PROT_ERR ||
+	       syndrome == MLX5_CQE_SYNDROME_WR_FLUSH_ERR;
+}
+
 int mlx5e_reporter_tx_create(struct mlx5e_priv *priv);
 void mlx5e_reporter_tx_destroy(struct mlx5e_priv *priv);
 void mlx5e_reporter_tx_err_cqe(struct mlx5e_txqsq *sq);
@@ -21,6 +29,7 @@
 int mlx5e_reporter_rx_create(struct mlx5e_priv *priv);
 void mlx5e_reporter_rx_destroy(struct mlx5e_priv *priv);
 void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq);
+void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq);
 void mlx5e_reporter_rx_timeout(struct mlx5e_rq *rq);
 
 #define MLX5E_REPORTER_PER_Q_MAX_LEN 256
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 7e7dba129330..2f48321d14d9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_rx.c
@@ -109,6 +109,71 @@ void mlx5e_reporter_icosq_cqe_err(struct mlx5e_icosq *icosq)
 	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
 }
 
+static int mlx5e_rq_to_ready(struct mlx5e_rq *rq, int curr_state)
+{
+	struct net_device *dev = rq->netdev;
+	int err;
+
+	err = mlx5e_modify_rq_state(rq, curr_state, MLX5_RQC_STATE_RST);
+	if (err) {
+		netdev_err(dev, "Failed to move rq 0x%x to reset\n", rq->rqn);
+		return err;
+	}
+	err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
+	if (err) {
+		netdev_err(dev, "Failed to move rq 0x%x to ready\n", rq->rqn);
+		return err;
+	}
+
+	return 0;
+}
+
+static int mlx5e_rx_reporter_err_rq_cqe_recover(void *ctx)
+{
+	struct mlx5e_rq *rq = (struct mlx5e_rq *)ctx;
+	struct mlx5_core_dev *mdev = rq->mdev;
+	struct net_device *dev = rq->netdev;
+	u8 state;
+	int err;
+
+	err = mlx5e_query_rq_state(mdev, rq->rqn, &state);
+	if (err) {
+		netdev_err(dev, "Failed to query RQ 0x%x state. err = %d\n",
+			   rq->rqn, err);
+		return err;
+	}
+
+	if (state != MLX5_RQC_STATE_ERR)
+		return 0;
+
+	mlx5e_deactivate_rq(rq);
+	mlx5e_free_rx_descs(rq);
+
+	err = mlx5e_rq_to_ready(rq, MLX5_RQC_STATE_ERR);
+	if (err)
+		goto out;
+
+	mlx5e_activate_rq(rq);
+	rq->stats->recover++;
+
+out:
+	clear_bit(MLX5E_RQ_STATE_RECOVERING, &rq->state);
+	return err;
+}
+
+void mlx5e_reporter_rq_cqe_err(struct mlx5e_rq *rq)
+{
+	struct mlx5e_priv *priv = rq->channel->priv;
+	char err_str[MLX5E_REPORTER_PER_Q_MAX_LEN];
+	struct mlx5e_err_ctx err_ctx = {};
+
+	err_ctx.ctx = rq;
+	err_ctx.recover = mlx5e_rx_reporter_err_rq_cqe_recover;
+	sprintf(err_str, "ERR CQE on RQ: 0x%x", rq->rqn);
+
+	mlx5e_health_report(priv, priv->rx_reporter, err_str, &err_ctx);
+}
+
 static int mlx5e_rx_reporter_timeout_recover(void *ctx)
 {
 	struct mlx5e_rq *rq = (struct mlx5e_rq *)ctx;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 1ebdeccf395d..c1f12f2e3a1a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -363,6 +363,13 @@ static void mlx5e_free_di_list(struct mlx5e_rq *rq)
 	kvfree(rq->wqe.di);
 }
 
+static void mlx5e_rq_err_cqe_work(struct work_struct *recover_work)
+{
+	struct mlx5e_rq *rq = container_of(recover_work, struct mlx5e_rq, recover_work);
+
+	mlx5e_reporter_rq_cqe_err(rq);
+}
+
 static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 			  struct mlx5e_params *params,
 			  struct mlx5e_xsk_param *xsk,
@@ -399,6 +406,7 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 		rq->stats = &c->priv->channel_stats[c->ix].xskrq;
 	else
 		rq->stats = &c->priv->channel_stats[c->ix].rq;
+	INIT_WORK(&rq->recover_work, mlx5e_rq_err_cqe_work);
 
 	rq->xdp_prog = params->xdp_prog ? bpf_prog_inc(params->xdp_prog) : NULL;
 	if (IS_ERR(rq->xdp_prog)) {
@@ -891,6 +899,7 @@ int mlx5e_open_rq(struct mlx5e_channel *c, struct mlx5e_params *params,
 
 void mlx5e_activate_rq(struct mlx5e_rq *rq)
 {
+	clear_bit(MLX5E_SQ_STATE_RECOVERING, &rq->state);
 	set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
 	mlx5e_trigger_irq(&rq->channel->icosq);
 }
@@ -905,6 +914,7 @@ void mlx5e_close_rq(struct mlx5e_rq *rq)
 {
 	cancel_work_sync(&rq->dim.work);
 	cancel_work_sync(&rq->channel->icosq.recover_work);
+	cancel_work_sync(&rq->recover_work);
 	mlx5e_destroy_rq(rq);
 	mlx5e_free_rx_descs(rq);
 	mlx5e_free_rq(rq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 3b730d3436e6..2b486863038e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1123,6 +1123,15 @@ struct sk_buff *
 	return skb;
 }
 
+static void trigger_report(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
+{
+	struct mlx5_err_cqe *err_cqe = (struct mlx5_err_cqe *)cqe;
+
+	if (cqe_syndrome_needs_recover(err_cqe->syndrome) &&
+	    !test_and_set_bit(MLX5E_RQ_STATE_RECOVERING, &rq->state))
+		queue_work(rq->channel->priv->wq, &rq->recover_work);
+}
+
 void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 {
 	struct mlx5_wq_cyc *wq = &rq->wqe.wq;
@@ -1136,6 +1145,7 @@ void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		trigger_report(rq, cqe);
 		rq->stats->wqe_err++;
 		goto free_wqe;
 	}
@@ -1321,6 +1331,7 @@ void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	wi->consumed_strides += cstrides;
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+		trigger_report(rq, cqe);
 		rq->stats->wqe_err++;
 		goto mpwrq_cqe_out;
 	}
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH net-next] r8169: sync few chip names with vendor driver
From: Heiner Kallweit @ 2019-07-07 11:59 UTC (permalink / raw)
  To: Realtek linux nic maintainers, David Miller; +Cc: netdev@vger.kernel.org

This patch syncs the name of few chip versions with the latest vendor
driver version.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 495d40c8f..efef5453b 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -157,7 +157,7 @@ static const struct {
 	/* PCI-E devices. */
 	[RTL_GIGA_MAC_VER_07] = {"RTL8102e"				},
 	[RTL_GIGA_MAC_VER_08] = {"RTL8102e"				},
-	[RTL_GIGA_MAC_VER_09] = {"RTL8102e"				},
+	[RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e"			},
 	[RTL_GIGA_MAC_VER_10] = {"RTL8101e"				},
 	[RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b"			},
 	[RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b"			},
@@ -190,9 +190,9 @@ static const struct {
 	[RTL_GIGA_MAC_VER_39] = {"RTL8106e",		FIRMWARE_8106E_1},
 	[RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g",	FIRMWARE_8168G_2},
 	[RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g"			},
-	[RTL_GIGA_MAC_VER_42] = {"RTL8168g/8111g",	FIRMWARE_8168G_3},
-	[RTL_GIGA_MAC_VER_43] = {"RTL8106e",		FIRMWARE_8106E_2},
-	[RTL_GIGA_MAC_VER_44] = {"RTL8411",		FIRMWARE_8411_2 },
+	[RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu",	FIRMWARE_8168G_3},
+	[RTL_GIGA_MAC_VER_43] = {"RTL8106eus",		FIRMWARE_8106E_2},
+	[RTL_GIGA_MAC_VER_44] = {"RTL8411b",		FIRMWARE_8411_2 },
 	[RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h",	FIRMWARE_8168H_1},
 	[RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h",	FIRMWARE_8168H_2},
 	[RTL_GIGA_MAC_VER_47] = {"RTL8107e",		FIRMWARE_8107E_1},
-- 
2.22.0


^ permalink raw reply related

* Re: [PATCH net-next v4 1/4] net/sched: Introduce action ct
From: Florian Westphal @ 2019-07-07 12:04 UTC (permalink / raw)
  To: Paul Blakey
  Cc: Jiri Pirko, Roi Dayan, Yossi Kuperman, Oz Shlomo,
	Marcelo Ricardo Leitner, netdev, David Miller, Aaron Conole,
	Zhike Wang, Rony Efraim, nst-kernel, John Hurley, Simon Horman,
	Justin Pettit
In-Reply-To: <1562486612-22770-2-git-send-email-paulb@mellanox.com>

Paul Blakey <paulb@mellanox.com> wrote:
> +/* Determine whether skb->_nfct is equal to the result of conntrack lookup. */
> +static bool tcf_ct_skb_nfct_cached(struct net *net, struct sk_buff *skb,
> +				   u16 zone_id, bool force)
> +{
> +	enum ip_conntrack_info ctinfo;
> +	struct nf_conn *ct;
> +
> +	ct = nf_ct_get(skb, &ctinfo);
> +	if (!ct)
> +		return false;
> +	if (!net_eq(net, read_pnet(&ct->ct_net)))
> +		return false;
> +	if (nf_ct_zone(ct)->id != zone_id)
> +		return false;
> +
> +	/* Force conntrack entry direction. */
> +	if (force && CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL) {
> +		nf_conntrack_put(&ct->ct_general);
> +		nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
> +
> +		if (nf_ct_is_confirmed(ct))
> +			nf_ct_kill(ct);

This looks like a possible UAF:
nf_conntrack_put() may free the conntrack entry.

It seems better to do do:
	if (nf_ct_is_confirmed(ct))
		nf_ct_kill(ct);

	nf_conntrack_put(&ct->ct_general);
	nf_ct_set(skb, ...


^ permalink raw reply

* Re: More complex PBR rules
From: David Ahern @ 2019-07-07 13:24 UTC (permalink / raw)
  To: Markus Moeller, netdev
In-Reply-To: <AFAC77AC6F8347289E6900614A523B32@Ultrabook1>

On 7/6/19 5:06 PM, Markus Moeller wrote:
> Hi Network developers
> 
> I am new to this group and wonder if you can advise how I could
> implement more complex PBR rules to achieve for example load balancing.
> The requirement I have is to route based on e.g. a hash like:
> 
>  hash(src-ip+dst-ip) mod N  routes via  gwX    0<X<=N   ( load balance
> over N gateways )

Have you tried multipath routing? Does that not work for you?

> 
>  This would help in situations where I can not use a MAC for identifying
> a gateway  ( e.g. in cloud environments) .
> 
>   Could someone point me to the kernel source code where PBR is performed ?
> 

net/core/fib_rules.c

^ permalink raw reply

* [PATCH net] nfc: fix potential illegal memory access
From: Yang Wei @ 2019-07-07 13:37 UTC (permalink / raw)
  To: netdev, linux-kernel; +Cc: davem, tglx, albin_yang

The frags_q is used before __skb_queue_head_init when conn_info is
NULL. It may result in illegal memory access.

Signed-off-by: Yang Wei <albin_yang@163.com>
---
 net/nfc/nci/data.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index 0a0c265..b5f16cb 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -104,14 +104,14 @@ static int nci_queue_tx_data_frags(struct nci_dev *ndev,
 
 	pr_debug("conn_id 0x%x, total_len %d\n", conn_id, total_len);
 
+	__skb_queue_head_init(&frags_q);
+
 	conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id);
 	if (!conn_info) {
 		rc = -EPROTO;
 		goto free_exit;
 	}
 
-	__skb_queue_head_init(&frags_q);
-
 	while (total_len) {
 		frag_len =
 			min_t(int, total_len, conn_info->max_pkt_payload_len);
-- 
2.7.4



^ permalink raw reply related

* [PATCH net-next v7 0/5] Add MPLS actions to TC
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley

This patchset introduces a new TC action module that allows the
manipulation of the MPLS headers of packets. The code impliments
functionality including push, pop, and modify.

Also included are tests for the new funtionality. Note that these will
require iproute2 changes to be submitted soon.

NOTE: these patches are applied to net-next along with the patch:
[PATCH net 1/1] net: openvswitch: fix csum updates for MPLS actions
This patch has been accepted into net but, at time of posting, is not yet
in net-next.

v6-v7:
- add extra tests for setting max/min and exceeding range of fields -
  patch 5 (Roman Mashak)
v5-v6:
- add CONFIG_NET_ACT_MPLS to tc-testing config file - patch 5
  (Davide Caratti)
v4-v5:
- move mpls_hdr() call to after skb_ensure_writable - patch 3
  (Willem de Bruijn)
- move mpls_dec_ttl to helper - patch 4 (Willem de Bruijn)
- add iproute2 usage example to commit msg - patch 4 (David Ahern)
- align label validation with mpls core code - patch 4 (David Ahern)
- improve extack message for no proto in mpls pop - patch 4 (David Ahern)
v3-v4:
- refactor and reuse OvS code (Cong Wang)
- use csum API rather than skb_post*rscum to update skb->csum (Cong Wang)
- remove unnecessary warning (Cong Wang)
- add comments to uapi attributes (David Ahern)
- set strict type policy check for TCA_MPLS_UNSPEC (David Ahern)
- expand/improve extack messages (David Ahern)
- add option to manually set BOS
v2-v3:
- remove a few unnecessary line breaks (Jiri Pirko)
- retract hw offload patch from set (resubmit with driver changes) (Jiri)
v1->v2:
- ensure TCA_ID_MPLS does not conflict with TCA_ID_CTINFO (Davide Caratti)

John Hurley (5):
  net: core: move push MPLS functionality from OvS to core helper
  net: core: move pop MPLS functionality from OvS to core helper
  net: core: add MPLS update core helper and use in OvS
  net: sched: add mpls manipulation actions to TC
  tc-tests: actions: add MPLS tests

 include/linux/skbuff.h                             |    4 +
 include/net/tc_act/tc_mpls.h                       |   30 +
 include/uapi/linux/pkt_cls.h                       |    3 +-
 include/uapi/linux/tc_act/tc_mpls.h                |   33 +
 net/core/skbuff.c                                  |  169 +++
 net/openvswitch/actions.c                          |   81 +-
 net/sched/Kconfig                                  |   11 +
 net/sched/Makefile                                 |    1 +
 net/sched/act_mpls.c                               |  406 ++++++++
 tools/testing/selftests/tc-testing/config          |    1 +
 .../tc-testing/tc-tests/actions/mpls.json          | 1088 ++++++++++++++++++++
 11 files changed, 1754 insertions(+), 73 deletions(-)
 create mode 100644 include/net/tc_act/tc_mpls.h
 create mode 100644 include/uapi/linux/tc_act/tc_mpls.h
 create mode 100644 net/sched/act_mpls.c
 create mode 100644 tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json

-- 
2.7.4


^ permalink raw reply

* [PATCH net-next v7 1/5] net: core: move push MPLS functionality from OvS to core helper
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley
In-Reply-To: <1562508118-28841-1-git-send-email-john.hurley@netronome.com>

Open vSwitch provides code to push an MPLS header to a packet. In
preparation for supporting this in TC, move the push code to an skb helper
that can be reused.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
---
 include/linux/skbuff.h    |  1 +
 net/core/skbuff.c         | 64 +++++++++++++++++++++++++++++++++++++++++++++++
 net/openvswitch/actions.c | 31 +++--------------------
 3 files changed, 69 insertions(+), 27 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7ece49d..10387d0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3446,6 +3446,7 @@ int skb_ensure_writable(struct sk_buff *skb, int write_len);
 int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci);
 int skb_vlan_pop(struct sk_buff *skb);
 int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
+int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto);
 struct sk_buff *pskb_extract(struct sk_buff *skb, int off, int to_copy,
 			     gfp_t gfp);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 5323441..f1d1e47 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -66,6 +66,7 @@
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
 #include <net/xfrm.h>
+#include <net/mpls.h>
 
 #include <linux/uaccess.h>
 #include <trace/events/skb.h>
@@ -5326,6 +5327,69 @@ int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci)
 }
 EXPORT_SYMBOL(skb_vlan_push);
 
+/* Update the ethertype of hdr and the skb csum value if required. */
+static void skb_mod_eth_type(struct sk_buff *skb, struct ethhdr *hdr,
+			     __be16 ethertype)
+{
+	if (skb->ip_summed == CHECKSUM_COMPLETE) {
+		__be16 diff[] = { ~hdr->h_proto, ethertype };
+
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
+	}
+
+	hdr->h_proto = ethertype;
+}
+
+/**
+ * skb_mpls_push() - push a new MPLS header after the mac header
+ *
+ * @skb: buffer
+ * @mpls_lse: MPLS label stack entry to push
+ * @mpls_proto: ethertype of the new MPLS header (expects 0x8847 or 0x8848)
+ *
+ * Expects skb->data at mac header.
+ *
+ * Returns 0 on success, -errno otherwise.
+ */
+int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto)
+{
+	struct mpls_shim_hdr *lse;
+	int err;
+
+	if (unlikely(!eth_p_mpls(mpls_proto)))
+		return -EINVAL;
+
+	/* Networking stack does not allow simultaneous Tunnel and MPLS GSO. */
+	if (skb->encapsulation)
+		return -EINVAL;
+
+	err = skb_cow_head(skb, MPLS_HLEN);
+	if (unlikely(err))
+		return err;
+
+	if (!skb->inner_protocol) {
+		skb_set_inner_network_header(skb, skb->mac_len);
+		skb_set_inner_protocol(skb, skb->protocol);
+	}
+
+	skb_push(skb, MPLS_HLEN);
+	memmove(skb_mac_header(skb) - MPLS_HLEN, skb_mac_header(skb),
+		skb->mac_len);
+	skb_reset_mac_header(skb);
+	skb_set_network_header(skb, skb->mac_len);
+
+	lse = mpls_hdr(skb);
+	lse->label_stack_entry = mpls_lse;
+	skb_postpush_rcsum(skb, lse, MPLS_HLEN);
+
+	if (skb->dev && skb->dev->type == ARPHRD_ETHER)
+		skb_mod_eth_type(skb, eth_hdr(skb), mpls_proto);
+	skb->protocol = mpls_proto;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(skb_mpls_push);
+
 /**
  * alloc_skb_with_frags - allocate skb with page frags
  *
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index bd13146..a9a6c9c 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -175,34 +175,11 @@ static void update_ethertype(struct sk_buff *skb, struct ethhdr *hdr,
 static int push_mpls(struct sk_buff *skb, struct sw_flow_key *key,
 		     const struct ovs_action_push_mpls *mpls)
 {
-	struct mpls_shim_hdr *new_mpls_lse;
-
-	/* Networking stack do not allow simultaneous Tunnel and MPLS GSO. */
-	if (skb->encapsulation)
-		return -ENOTSUPP;
-
-	if (skb_cow_head(skb, MPLS_HLEN) < 0)
-		return -ENOMEM;
-
-	if (!skb->inner_protocol) {
-		skb_set_inner_network_header(skb, skb->mac_len);
-		skb_set_inner_protocol(skb, skb->protocol);
-	}
-
-	skb_push(skb, MPLS_HLEN);
-	memmove(skb_mac_header(skb) - MPLS_HLEN, skb_mac_header(skb),
-		skb->mac_len);
-	skb_reset_mac_header(skb);
-	skb_set_network_header(skb, skb->mac_len);
-
-	new_mpls_lse = mpls_hdr(skb);
-	new_mpls_lse->label_stack_entry = mpls->mpls_lse;
-
-	skb_postpush_rcsum(skb, new_mpls_lse, MPLS_HLEN);
+	int err;
 
-	if (ovs_key_mac_proto(key) == MAC_PROTO_ETHERNET)
-		update_ethertype(skb, eth_hdr(skb), mpls->mpls_ethertype);
-	skb->protocol = mpls->mpls_ethertype;
+	err = skb_mpls_push(skb, mpls->mpls_lse, mpls->mpls_ethertype);
+	if (err)
+		return err;
 
 	invalidate_flow_key(key);
 	return 0;
-- 
2.7.4


^ permalink raw reply related

* [PATCH net-next v7 2/5] net: core: move pop MPLS functionality from OvS to core helper
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley
In-Reply-To: <1562508118-28841-1-git-send-email-john.hurley@netronome.com>

Open vSwitch provides code to pop an MPLS header to a packet. In
preparation for supporting this in TC, move the pop code to an skb helper
that can be reused.

Remove the, now unused, update_ethertype static function from OvS.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
---
 include/linux/skbuff.h    |  1 +
 net/core/skbuff.c         | 42 ++++++++++++++++++++++++++++++++++++++++++
 net/openvswitch/actions.c | 37 ++-----------------------------------
 3 files changed, 45 insertions(+), 35 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 10387d0..88b34fe 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3447,6 +3447,7 @@ int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci);
 int skb_vlan_pop(struct sk_buff *skb);
 int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
 int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto);
+int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto);
 struct sk_buff *pskb_extract(struct sk_buff *skb, int off, int to_copy,
 			     gfp_t gfp);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f1d1e47..ce30989 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5391,6 +5391,48 @@ int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto)
 EXPORT_SYMBOL_GPL(skb_mpls_push);
 
 /**
+ * skb_mpls_pop() - pop the outermost MPLS header
+ *
+ * @skb: buffer
+ * @next_proto: ethertype of header after popped MPLS header
+ *
+ * Expects skb->data at mac header.
+ *
+ * Returns 0 on success, -errno otherwise.
+ */
+int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto)
+{
+	int err;
+
+	if (unlikely(!eth_p_mpls(skb->protocol)))
+		return -EINVAL;
+
+	err = skb_ensure_writable(skb, skb->mac_len + MPLS_HLEN);
+	if (unlikely(err))
+		return err;
+
+	skb_postpull_rcsum(skb, mpls_hdr(skb), MPLS_HLEN);
+	memmove(skb_mac_header(skb) + MPLS_HLEN, skb_mac_header(skb),
+		skb->mac_len);
+
+	__skb_pull(skb, MPLS_HLEN);
+	skb_reset_mac_header(skb);
+	skb_set_network_header(skb, skb->mac_len);
+
+	if (skb->dev && skb->dev->type == ARPHRD_ETHER) {
+		struct ethhdr *hdr;
+
+		/* use mpls_hdr() to get ethertype to account for VLANs. */
+		hdr = (struct ethhdr *)((void *)mpls_hdr(skb) - ETH_HLEN);
+		skb_mod_eth_type(skb, hdr, next_proto);
+	}
+	skb->protocol = next_proto;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(skb_mpls_pop);
+
+/**
  * alloc_skb_with_frags - allocate skb with page frags
  *
  * @header_len: size of linear part
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index a9a6c9c..62715bb 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -160,18 +160,6 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
 			      struct sw_flow_key *key,
 			      const struct nlattr *attr, int len);
 
-static void update_ethertype(struct sk_buff *skb, struct ethhdr *hdr,
-			     __be16 ethertype)
-{
-	if (skb->ip_summed == CHECKSUM_COMPLETE) {
-		__be16 diff[] = { ~(hdr->h_proto), ethertype };
-
-		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
-	}
-
-	hdr->h_proto = ethertype;
-}
-
 static int push_mpls(struct sk_buff *skb, struct sw_flow_key *key,
 		     const struct ovs_action_push_mpls *mpls)
 {
@@ -190,31 +178,10 @@ static int pop_mpls(struct sk_buff *skb, struct sw_flow_key *key,
 {
 	int err;
 
-	err = skb_ensure_writable(skb, skb->mac_len + MPLS_HLEN);
-	if (unlikely(err))
+	err = skb_mpls_pop(skb, ethertype);
+	if (err)
 		return err;
 
-	skb_postpull_rcsum(skb, mpls_hdr(skb), MPLS_HLEN);
-
-	memmove(skb_mac_header(skb) + MPLS_HLEN, skb_mac_header(skb),
-		skb->mac_len);
-
-	__skb_pull(skb, MPLS_HLEN);
-	skb_reset_mac_header(skb);
-	skb_set_network_header(skb, skb->mac_len);
-
-	if (ovs_key_mac_proto(key) == MAC_PROTO_ETHERNET) {
-		struct ethhdr *hdr;
-
-		/* mpls_hdr() is used to locate the ethertype field correctly in the
-		 * presence of VLAN tags.
-		 */
-		hdr = (struct ethhdr *)((void *)mpls_hdr(skb) - ETH_HLEN);
-		update_ethertype(skb, hdr, ethertype);
-	}
-	if (eth_p_mpls(skb->protocol))
-		skb->protocol = ethertype;
-
 	invalidate_flow_key(key);
 	return 0;
 }
-- 
2.7.4


^ permalink raw reply related

* [PATCH net-next v7 3/5] net: core: add MPLS update core helper and use in OvS
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley
In-Reply-To: <1562508118-28841-1-git-send-email-john.hurley@netronome.com>

Open vSwitch allows the updating of an existing MPLS header on a packet.
In preparation for supporting similar functionality in TC, move this to a
common skb helper function.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
---
 include/linux/skbuff.h    |  1 +
 net/core/skbuff.c         | 33 +++++++++++++++++++++++++++++++++
 net/openvswitch/actions.c | 13 +++----------
 3 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 88b34fe..dc07f00 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3448,6 +3448,7 @@ int skb_vlan_pop(struct sk_buff *skb);
 int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
 int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto);
 int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto);
+int skb_mpls_update_lse(struct sk_buff *skb, __be32 mpls_lse);
 struct sk_buff *pskb_extract(struct sk_buff *skb, int off, int to_copy,
 			     gfp_t gfp);
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index ce30989..46da15c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5433,6 +5433,39 @@ int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto)
 EXPORT_SYMBOL_GPL(skb_mpls_pop);
 
 /**
+ * skb_mpls_update_lse() - modify outermost MPLS header and update csum
+ *
+ * @skb: buffer
+ * @mpls_lse: new MPLS label stack entry to update to
+ *
+ * Expects skb->data at mac header.
+ *
+ * Returns 0 on success, -errno otherwise.
+ */
+int skb_mpls_update_lse(struct sk_buff *skb, __be32 mpls_lse)
+{
+	int err;
+
+	if (unlikely(!eth_p_mpls(skb->protocol)))
+		return -EINVAL;
+
+	err = skb_ensure_writable(skb, skb->mac_len + MPLS_HLEN);
+	if (unlikely(err))
+		return err;
+
+	if (skb->ip_summed == CHECKSUM_COMPLETE) {
+		__be32 diff[] = { ~mpls_hdr(skb)->label_stack_entry, mpls_lse };
+
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
+	}
+
+	mpls_hdr(skb)->label_stack_entry = mpls_lse;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(skb_mpls_update_lse);
+
+/**
  * alloc_skb_with_frags - allocate skb with page frags
  *
  * @header_len: size of linear part
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 62715bb..3572e11 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -193,19 +193,12 @@ static int set_mpls(struct sk_buff *skb, struct sw_flow_key *flow_key,
 	__be32 lse;
 	int err;
 
-	err = skb_ensure_writable(skb, skb->mac_len + MPLS_HLEN);
-	if (unlikely(err))
-		return err;
-
 	stack = mpls_hdr(skb);
 	lse = OVS_MASKED(stack->label_stack_entry, *mpls_lse, *mask);
-	if (skb->ip_summed == CHECKSUM_COMPLETE) {
-		__be32 diff[] = { ~(stack->label_stack_entry), lse };
-
-		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
-	}
+	err = skb_mpls_update_lse(skb, lse);
+	if (err)
+		return err;
 
-	stack->label_stack_entry = lse;
 	flow_key->mpls.top_lse = lse;
 	return 0;
 }
-- 
2.7.4


^ permalink raw reply related

* [PATCH net-next v7 4/5] net: sched: add mpls manipulation actions to TC
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley
In-Reply-To: <1562508118-28841-1-git-send-email-john.hurley@netronome.com>

Currently, TC offers the ability to match on the MPLS fields of a packet
through the use of the flow_dissector_key_mpls struct. However, as yet, TC
actions do not allow the modification or manipulation of such fields.

Add a new module that registers TC action ops to allow manipulation of
MPLS. This includes the ability to push and pop headers as well as modify
the contents of new or existing headers. A further action to decrement the
TTL field of an MPLS header is also provided with a new helper added to
support this.

Examples of the usage of the new action with flower rules to push and pop
MPLS labels are:

tc filter add dev eth0 protocol ip parent ffff: flower \
    action mpls push protocol mpls_uc label 123  \
    action mirred egress redirect dev eth1

tc filter add dev eth0 protocol mpls_uc parent ffff: flower \
    action mpls pop protocol ipv4  \
    action mirred egress redirect dev eth1

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
---
 include/linux/skbuff.h              |   1 +
 include/net/tc_act/tc_mpls.h        |  30 +++
 include/uapi/linux/pkt_cls.h        |   3 +-
 include/uapi/linux/tc_act/tc_mpls.h |  33 +++
 net/core/skbuff.c                   |  30 +++
 net/sched/Kconfig                   |  11 +
 net/sched/Makefile                  |   1 +
 net/sched/act_mpls.c                | 406 ++++++++++++++++++++++++++++++++++++
 8 files changed, 514 insertions(+), 1 deletion(-)
 create mode 100644 include/net/tc_act/tc_mpls.h
 create mode 100644 include/uapi/linux/tc_act/tc_mpls.h
 create mode 100644 net/sched/act_mpls.c

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index dc07f00..c6fbe09 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3449,6 +3449,7 @@ int skb_vlan_push(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci);
 int skb_mpls_push(struct sk_buff *skb, __be32 mpls_lse, __be16 mpls_proto);
 int skb_mpls_pop(struct sk_buff *skb, __be16 next_proto);
 int skb_mpls_update_lse(struct sk_buff *skb, __be32 mpls_lse);
+int skb_mpls_dec_ttl(struct sk_buff *skb);
 struct sk_buff *pskb_extract(struct sk_buff *skb, int off, int to_copy,
 			     gfp_t gfp);
 
diff --git a/include/net/tc_act/tc_mpls.h b/include/net/tc_act/tc_mpls.h
new file mode 100644
index 0000000..4bc3d92
--- /dev/null
+++ b/include/net/tc_act/tc_mpls.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (C) 2019 Netronome Systems, Inc. */
+
+#ifndef __NET_TC_MPLS_H
+#define __NET_TC_MPLS_H
+
+#include <linux/tc_act/tc_mpls.h>
+#include <net/act_api.h>
+
+struct tcf_mpls_params {
+	int tcfm_action;
+	u32 tcfm_label;
+	u8 tcfm_tc;
+	u8 tcfm_ttl;
+	u8 tcfm_bos;
+	__be16 tcfm_proto;
+	struct rcu_head	rcu;
+};
+
+#define ACT_MPLS_TC_NOT_SET	0xff
+#define ACT_MPLS_BOS_NOT_SET	0xff
+#define ACT_MPLS_LABEL_NOT_SET	0xffffffff
+
+struct tcf_mpls {
+	struct tc_action common;
+	struct tcf_mpls_params __rcu *mpls_p;
+};
+#define to_mpls(a) ((struct tcf_mpls *)a)
+
+#endif /* __NET_TC_MPLS_H */
diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index 8cc6b67..e22ef4a 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -104,8 +104,9 @@ enum tca_id {
 	TCA_ID_SIMP = TCA_ACT_SIMP,
 	TCA_ID_IFE = TCA_ACT_IFE,
 	TCA_ID_SAMPLE = TCA_ACT_SAMPLE,
-	/* other actions go here */
 	TCA_ID_CTINFO,
+	TCA_ID_MPLS,
+	/* other actions go here */
 	__TCA_ID_MAX = 255
 };
 
diff --git a/include/uapi/linux/tc_act/tc_mpls.h b/include/uapi/linux/tc_act/tc_mpls.h
new file mode 100644
index 0000000..9360e95
--- /dev/null
+++ b/include/uapi/linux/tc_act/tc_mpls.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* Copyright (C) 2019 Netronome Systems, Inc. */
+
+#ifndef __LINUX_TC_MPLS_H
+#define __LINUX_TC_MPLS_H
+
+#include <linux/pkt_cls.h>
+
+#define TCA_MPLS_ACT_POP	1
+#define TCA_MPLS_ACT_PUSH	2
+#define TCA_MPLS_ACT_MODIFY	3
+#define TCA_MPLS_ACT_DEC_TTL	4
+
+struct tc_mpls {
+	tc_gen;		/* generic TC action fields. */
+	int m_action;	/* action of type TCA_MPLS_ACT_*. */
+};
+
+enum {
+	TCA_MPLS_UNSPEC,
+	TCA_MPLS_TM,	/* struct tcf_t; time values associated with action. */
+	TCA_MPLS_PARMS,	/* struct tc_mpls; action type and general TC fields. */
+	TCA_MPLS_PAD,
+	TCA_MPLS_PROTO,	/* be16; eth_type of pushed or next (for pop) header. */
+	TCA_MPLS_LABEL,	/* u32; MPLS label. Lower 20 bits are used. */
+	TCA_MPLS_TC,	/* u8; MPLS TC field. Lower 3 bits are used. */
+	TCA_MPLS_TTL,	/* u8; MPLS TTL field. Must not be 0. */
+	TCA_MPLS_BOS,	/* u8; MPLS BOS field. Either 1 or 0. */
+	__TCA_MPLS_MAX,
+};
+#define TCA_MPLS_MAX (__TCA_MPLS_MAX - 1)
+
+#endif
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 46da15c..34ee236 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -59,6 +59,7 @@
 #include <linux/errqueue.h>
 #include <linux/prefetch.h>
 #include <linux/if_vlan.h>
+#include <linux/mpls.h>
 
 #include <net/protocol.h>
 #include <net/dst.h>
@@ -5466,6 +5467,35 @@ int skb_mpls_update_lse(struct sk_buff *skb, __be32 mpls_lse)
 EXPORT_SYMBOL_GPL(skb_mpls_update_lse);
 
 /**
+ * skb_mpls_dec_ttl() - decrement the TTL of the outermost MPLS header
+ *
+ * @skb: buffer
+ *
+ * Expects skb->data at mac header.
+ *
+ * Returns 0 on success, -errno otherwise.
+ */
+int skb_mpls_dec_ttl(struct sk_buff *skb)
+{
+	u32 lse;
+	u8 ttl;
+
+	if (unlikely(!eth_p_mpls(skb->protocol)))
+		return -EINVAL;
+
+	lse = be32_to_cpu(mpls_hdr(skb)->label_stack_entry);
+	ttl = (lse & MPLS_LS_TTL_MASK) >> MPLS_LS_TTL_SHIFT;
+	if (!--ttl)
+		return -EINVAL;
+
+	lse &= ~MPLS_LS_TTL_MASK;
+	lse |= ttl << MPLS_LS_TTL_SHIFT;
+
+	return skb_mpls_update_lse(skb, cpu_to_be32(lse));
+}
+EXPORT_SYMBOL_GPL(skb_mpls_dec_ttl);
+
+/**
  * alloc_skb_with_frags - allocate skb with page frags
  *
  * @header_len: size of linear part
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 360fdd3..731f5fb 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -842,6 +842,17 @@ config NET_ACT_CSUM
 	  To compile this code as a module, choose M here: the
 	  module will be called act_csum.
 
+config NET_ACT_MPLS
+	tristate "MPLS manipulation"
+	depends on NET_CLS_ACT
+	help
+	  Say Y here to push or pop MPLS headers.
+
+	  If unsure, say N.
+
+	  To compile this code as a module, choose M here: the
+	  module will be called act_mpls.
+
 config NET_ACT_VLAN
         tristate "Vlan manipulation"
         depends on NET_CLS_ACT
diff --git a/net/sched/Makefile b/net/sched/Makefile
index d54bfcb..c266036 100644
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_NET_ACT_PEDIT)	+= act_pedit.o
 obj-$(CONFIG_NET_ACT_SIMP)	+= act_simple.o
 obj-$(CONFIG_NET_ACT_SKBEDIT)	+= act_skbedit.o
 obj-$(CONFIG_NET_ACT_CSUM)	+= act_csum.o
+obj-$(CONFIG_NET_ACT_MPLS)	+= act_mpls.o
 obj-$(CONFIG_NET_ACT_VLAN)	+= act_vlan.o
 obj-$(CONFIG_NET_ACT_BPF)	+= act_bpf.o
 obj-$(CONFIG_NET_ACT_CONNMARK)	+= act_connmark.o
diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c
new file mode 100644
index 0000000..ca2597c
--- /dev/null
+++ b/net/sched/act_mpls.c
@@ -0,0 +1,406 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Copyright (C) 2019 Netronome Systems, Inc. */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mpls.h>
+#include <linux/rtnetlink.h>
+#include <linux/skbuff.h>
+#include <linux/tc_act/tc_mpls.h>
+#include <net/mpls.h>
+#include <net/netlink.h>
+#include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
+#include <net/tc_act/tc_mpls.h>
+
+static unsigned int mpls_net_id;
+static struct tc_action_ops act_mpls_ops;
+
+#define ACT_MPLS_TTL_DEFAULT	255
+
+static __be32 tcf_mpls_get_lse(struct mpls_shim_hdr *lse,
+			       struct tcf_mpls_params *p, bool set_bos)
+{
+	u32 new_lse = 0;
+
+	if (lse)
+		new_lse = be32_to_cpu(lse->label_stack_entry);
+
+	if (p->tcfm_label != ACT_MPLS_LABEL_NOT_SET) {
+		new_lse &= ~MPLS_LS_LABEL_MASK;
+		new_lse |= p->tcfm_label << MPLS_LS_LABEL_SHIFT;
+	}
+	if (p->tcfm_ttl) {
+		new_lse &= ~MPLS_LS_TTL_MASK;
+		new_lse |= p->tcfm_ttl << MPLS_LS_TTL_SHIFT;
+	}
+	if (p->tcfm_tc != ACT_MPLS_TC_NOT_SET) {
+		new_lse &= ~MPLS_LS_TC_MASK;
+		new_lse |= p->tcfm_tc << MPLS_LS_TC_SHIFT;
+	}
+	if (p->tcfm_bos != ACT_MPLS_BOS_NOT_SET) {
+		new_lse &= ~MPLS_LS_S_MASK;
+		new_lse |= p->tcfm_bos << MPLS_LS_S_SHIFT;
+	} else if (set_bos) {
+		new_lse |= 1 << MPLS_LS_S_SHIFT;
+	}
+
+	return cpu_to_be32(new_lse);
+}
+
+static int tcf_mpls_act(struct sk_buff *skb, const struct tc_action *a,
+			struct tcf_result *res)
+{
+	struct tcf_mpls *m = to_mpls(a);
+	struct tcf_mpls_params *p;
+	__be32 new_lse;
+	int ret;
+
+	tcf_lastuse_update(&m->tcf_tm);
+	bstats_cpu_update(this_cpu_ptr(m->common.cpu_bstats), skb);
+
+	/* Ensure 'data' points at mac_header prior calling mpls manipulating
+	 * functions.
+	 */
+	if (skb_at_tc_ingress(skb))
+		skb_push_rcsum(skb, skb->mac_len);
+
+	ret = READ_ONCE(m->tcf_action);
+
+	p = rcu_dereference_bh(m->mpls_p);
+
+	switch (p->tcfm_action) {
+	case TCA_MPLS_ACT_POP:
+		if (skb_mpls_pop(skb, p->tcfm_proto))
+			goto drop;
+		break;
+	case TCA_MPLS_ACT_PUSH:
+		new_lse = tcf_mpls_get_lse(NULL, p, !eth_p_mpls(skb->protocol));
+		if (skb_mpls_push(skb, new_lse, p->tcfm_proto))
+			goto drop;
+		break;
+	case TCA_MPLS_ACT_MODIFY:
+		new_lse = tcf_mpls_get_lse(mpls_hdr(skb), p, false);
+		if (skb_mpls_update_lse(skb, new_lse))
+			goto drop;
+		break;
+	case TCA_MPLS_ACT_DEC_TTL:
+		if (skb_mpls_dec_ttl(skb))
+			goto drop;
+		break;
+	}
+
+	if (skb_at_tc_ingress(skb))
+		skb_pull_rcsum(skb, skb->mac_len);
+
+	return ret;
+
+drop:
+	qstats_drop_inc(this_cpu_ptr(m->common.cpu_qstats));
+	return TC_ACT_SHOT;
+}
+
+static int valid_label(const struct nlattr *attr,
+		       struct netlink_ext_ack *extack)
+{
+	const u32 *label = nla_data(attr);
+
+	if (*label & ~MPLS_LABEL_MASK || *label == MPLS_LABEL_IMPLNULL) {
+		NL_SET_ERR_MSG_MOD(extack, "MPLS label out of range");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct nla_policy mpls_policy[TCA_MPLS_MAX + 1] = {
+	[TCA_MPLS_UNSPEC]	= { .strict_start_type = TCA_MPLS_UNSPEC + 1 },
+	[TCA_MPLS_PARMS]	= NLA_POLICY_EXACT_LEN(sizeof(struct tc_mpls)),
+	[TCA_MPLS_PROTO]	= { .type = NLA_U16 },
+	[TCA_MPLS_LABEL]	= NLA_POLICY_VALIDATE_FN(NLA_U32, valid_label),
+	[TCA_MPLS_TC]		= NLA_POLICY_RANGE(NLA_U8, 0, 7),
+	[TCA_MPLS_TTL]		= NLA_POLICY_MIN(NLA_U8, 1),
+	[TCA_MPLS_BOS]		= NLA_POLICY_RANGE(NLA_U8, 0, 1),
+};
+
+static int tcf_mpls_init(struct net *net, struct nlattr *nla,
+			 struct nlattr *est, struct tc_action **a,
+			 int ovr, int bind, bool rtnl_held,
+			 struct tcf_proto *tp, struct netlink_ext_ack *extack)
+{
+	struct tc_action_net *tn = net_generic(net, mpls_net_id);
+	struct nlattr *tb[TCA_MPLS_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
+	struct tcf_mpls_params *p;
+	struct tc_mpls *parm;
+	bool exists = false;
+	struct tcf_mpls *m;
+	int ret = 0, err;
+	u8 mpls_ttl = 0;
+
+	if (!nla) {
+		NL_SET_ERR_MSG_MOD(extack, "Missing netlink attributes");
+		return -EINVAL;
+	}
+
+	err = nla_parse_nested(tb, TCA_MPLS_MAX, nla, mpls_policy, extack);
+	if (err < 0)
+		return err;
+
+	if (!tb[TCA_MPLS_PARMS]) {
+		NL_SET_ERR_MSG_MOD(extack, "No MPLS params");
+		return -EINVAL;
+	}
+	parm = nla_data(tb[TCA_MPLS_PARMS]);
+
+	/* Verify parameters against action type. */
+	switch (parm->m_action) {
+	case TCA_MPLS_ACT_POP:
+		if (!tb[TCA_MPLS_PROTO]) {
+			NL_SET_ERR_MSG_MOD(extack, "Protocol must be set for MPLS pop");
+			return -EINVAL;
+		}
+		if (!eth_proto_is_802_3(nla_get_be16(tb[TCA_MPLS_PROTO]))) {
+			NL_SET_ERR_MSG_MOD(extack, "Invalid protocol type for MPLS pop");
+			return -EINVAL;
+		}
+		if (tb[TCA_MPLS_LABEL] || tb[TCA_MPLS_TTL] || tb[TCA_MPLS_TC] ||
+		    tb[TCA_MPLS_BOS]) {
+			NL_SET_ERR_MSG_MOD(extack, "Label, TTL, TC or BOS cannot be used with MPLS pop");
+			return -EINVAL;
+		}
+		break;
+	case TCA_MPLS_ACT_DEC_TTL:
+		if (tb[TCA_MPLS_PROTO] || tb[TCA_MPLS_LABEL] ||
+		    tb[TCA_MPLS_TTL] || tb[TCA_MPLS_TC] || tb[TCA_MPLS_BOS]) {
+			NL_SET_ERR_MSG_MOD(extack, "Label, TTL, TC, BOS or protocol cannot be used with MPLS dec_ttl");
+			return -EINVAL;
+		}
+		break;
+	case TCA_MPLS_ACT_PUSH:
+		if (!tb[TCA_MPLS_LABEL]) {
+			NL_SET_ERR_MSG_MOD(extack, "Label is required for MPLS push");
+			return -EINVAL;
+		}
+		if (tb[TCA_MPLS_PROTO] &&
+		    !eth_p_mpls(nla_get_be16(tb[TCA_MPLS_PROTO]))) {
+			NL_SET_ERR_MSG_MOD(extack, "Protocol must be an MPLS type for MPLS push");
+			return -EPROTONOSUPPORT;
+		}
+		/* Push needs a TTL - if not specified, set a default value. */
+		if (!tb[TCA_MPLS_TTL]) {
+#if IS_ENABLED(CONFIG_MPLS)
+			mpls_ttl = net->mpls.default_ttl ?
+				   net->mpls.default_ttl : ACT_MPLS_TTL_DEFAULT;
+#else
+			mpls_ttl = ACT_MPLS_TTL_DEFAULT;
+#endif
+		}
+		break;
+	case TCA_MPLS_ACT_MODIFY:
+		if (tb[TCA_MPLS_PROTO]) {
+			NL_SET_ERR_MSG_MOD(extack, "Protocol cannot be used with MPLS modify");
+			return -EINVAL;
+		}
+		break;
+	default:
+		NL_SET_ERR_MSG_MOD(extack, "Unknown MPLS action");
+		return -EINVAL;
+	}
+
+	err = tcf_idr_check_alloc(tn, &parm->index, a, bind);
+	if (err < 0)
+		return err;
+	exists = err;
+	if (exists && bind)
+		return 0;
+
+	if (!exists) {
+		ret = tcf_idr_create(tn, parm->index, est, a,
+				     &act_mpls_ops, bind, true);
+		if (ret) {
+			tcf_idr_cleanup(tn, parm->index);
+			return ret;
+		}
+
+		ret = ACT_P_CREATED;
+	} else if (!ovr) {
+		tcf_idr_release(*a, bind);
+		return -EEXIST;
+	}
+
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
+
+	m = to_mpls(*a);
+
+	p = kzalloc(sizeof(*p), GFP_KERNEL);
+	if (!p) {
+		err = -ENOMEM;
+		goto put_chain;
+	}
+
+	p->tcfm_action = parm->m_action;
+	p->tcfm_label = tb[TCA_MPLS_LABEL] ? nla_get_u32(tb[TCA_MPLS_LABEL]) :
+					     ACT_MPLS_LABEL_NOT_SET;
+	p->tcfm_tc = tb[TCA_MPLS_TC] ? nla_get_u8(tb[TCA_MPLS_TC]) :
+				       ACT_MPLS_TC_NOT_SET;
+	p->tcfm_ttl = tb[TCA_MPLS_TTL] ? nla_get_u8(tb[TCA_MPLS_TTL]) :
+					 mpls_ttl;
+	p->tcfm_bos = tb[TCA_MPLS_BOS] ? nla_get_u8(tb[TCA_MPLS_BOS]) :
+					 ACT_MPLS_BOS_NOT_SET;
+	p->tcfm_proto = tb[TCA_MPLS_PROTO] ? nla_get_be16(tb[TCA_MPLS_PROTO]) :
+					     htons(ETH_P_MPLS_UC);
+
+	spin_lock_bh(&m->tcf_lock);
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
+	rcu_swap_protected(m->mpls_p, p, lockdep_is_held(&m->tcf_lock));
+	spin_unlock_bh(&m->tcf_lock);
+
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+	if (p)
+		kfree_rcu(p, rcu);
+
+	if (ret == ACT_P_CREATED)
+		tcf_idr_insert(tn, *a);
+	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
+}
+
+static void tcf_mpls_cleanup(struct tc_action *a)
+{
+	struct tcf_mpls *m = to_mpls(a);
+	struct tcf_mpls_params *p;
+
+	p = rcu_dereference_protected(m->mpls_p, 1);
+	if (p)
+		kfree_rcu(p, rcu);
+}
+
+static int tcf_mpls_dump(struct sk_buff *skb, struct tc_action *a,
+			 int bind, int ref)
+{
+	unsigned char *b = skb_tail_pointer(skb);
+	struct tcf_mpls *m = to_mpls(a);
+	struct tcf_mpls_params *p;
+	struct tc_mpls opt = {
+		.index    = m->tcf_index,
+		.refcnt   = refcount_read(&m->tcf_refcnt) - ref,
+		.bindcnt  = atomic_read(&m->tcf_bindcnt) - bind,
+	};
+	struct tcf_t t;
+
+	spin_lock_bh(&m->tcf_lock);
+	opt.action = m->tcf_action;
+	p = rcu_dereference_protected(m->mpls_p, lockdep_is_held(&m->tcf_lock));
+	opt.m_action = p->tcfm_action;
+
+	if (nla_put(skb, TCA_MPLS_PARMS, sizeof(opt), &opt))
+		goto nla_put_failure;
+
+	if (p->tcfm_label != ACT_MPLS_LABEL_NOT_SET &&
+	    nla_put_u32(skb, TCA_MPLS_LABEL, p->tcfm_label))
+		goto nla_put_failure;
+
+	if (p->tcfm_tc != ACT_MPLS_TC_NOT_SET &&
+	    nla_put_u8(skb, TCA_MPLS_TC, p->tcfm_tc))
+		goto nla_put_failure;
+
+	if (p->tcfm_ttl && nla_put_u8(skb, TCA_MPLS_TTL, p->tcfm_ttl))
+		goto nla_put_failure;
+
+	if (p->tcfm_bos != ACT_MPLS_BOS_NOT_SET &&
+	    nla_put_u8(skb, TCA_MPLS_BOS, p->tcfm_bos))
+		goto nla_put_failure;
+
+	if (nla_put_be16(skb, TCA_MPLS_PROTO, p->tcfm_proto))
+		goto nla_put_failure;
+
+	tcf_tm_dump(&t, &m->tcf_tm);
+
+	if (nla_put_64bit(skb, TCA_MPLS_TM, sizeof(t), &t, TCA_MPLS_PAD))
+		goto nla_put_failure;
+
+	spin_unlock_bh(&m->tcf_lock);
+
+	return skb->len;
+
+nla_put_failure:
+	spin_unlock_bh(&m->tcf_lock);
+	nlmsg_trim(skb, b);
+	return -EMSGSIZE;
+}
+
+static int tcf_mpls_walker(struct net *net, struct sk_buff *skb,
+			   struct netlink_callback *cb, int type,
+			   const struct tc_action_ops *ops,
+			   struct netlink_ext_ack *extack)
+{
+	struct tc_action_net *tn = net_generic(net, mpls_net_id);
+
+	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
+}
+
+static int tcf_mpls_search(struct net *net, struct tc_action **a, u32 index)
+{
+	struct tc_action_net *tn = net_generic(net, mpls_net_id);
+
+	return tcf_idr_search(tn, a, index);
+}
+
+static struct tc_action_ops act_mpls_ops = {
+	.kind		=	"mpls",
+	.id		=	TCA_ID_MPLS,
+	.owner		=	THIS_MODULE,
+	.act		=	tcf_mpls_act,
+	.dump		=	tcf_mpls_dump,
+	.init		=	tcf_mpls_init,
+	.cleanup	=	tcf_mpls_cleanup,
+	.walk		=	tcf_mpls_walker,
+	.lookup		=	tcf_mpls_search,
+	.size		=	sizeof(struct tcf_mpls),
+};
+
+static __net_init int mpls_init_net(struct net *net)
+{
+	struct tc_action_net *tn = net_generic(net, mpls_net_id);
+
+	return tc_action_net_init(tn, &act_mpls_ops);
+}
+
+static void __net_exit mpls_exit_net(struct list_head *net_list)
+{
+	tc_action_net_exit(net_list, mpls_net_id);
+}
+
+static struct pernet_operations mpls_net_ops = {
+	.init = mpls_init_net,
+	.exit_batch = mpls_exit_net,
+	.id   = &mpls_net_id,
+	.size = sizeof(struct tc_action_net),
+};
+
+static int __init mpls_init_module(void)
+{
+	return tcf_register_action(&act_mpls_ops, &mpls_net_ops);
+}
+
+static void __exit mpls_cleanup_module(void)
+{
+	tcf_unregister_action(&act_mpls_ops, &mpls_net_ops);
+}
+
+module_init(mpls_init_module);
+module_exit(mpls_cleanup_module);
+
+MODULE_AUTHOR("Netronome Systems <oss-drivers@netronome.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("MPLS manipulation actions");
-- 
2.7.4


^ permalink raw reply related

* [PATCH net-next v7 5/5] tc-tests: actions: add MPLS tests
From: John Hurley @ 2019-07-07 14:01 UTC (permalink / raw)
  To: netdev
  Cc: davem, jiri, xiyou.wangcong, dsahern, willemdebruijn.kernel,
	dcaratti, mrv, simon.horman, jakub.kicinski, oss-drivers,
	John Hurley
In-Reply-To: <1562508118-28841-1-git-send-email-john.hurley@netronome.com>

Add a new series of selftests to verify the functionality of act_mpls in
TC.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
---
 tools/testing/selftests/tc-testing/config          |    1 +
 .../tc-testing/tc-tests/actions/mpls.json          | 1088 ++++++++++++++++++++
 2 files changed, 1089 insertions(+)
 create mode 100644 tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json

diff --git a/tools/testing/selftests/tc-testing/config b/tools/testing/selftests/tc-testing/config
index 1adc4f9..7c55196 100644
--- a/tools/testing/selftests/tc-testing/config
+++ b/tools/testing/selftests/tc-testing/config
@@ -42,6 +42,7 @@ CONFIG_NET_ACT_CTINFO=m
 CONFIG_NET_ACT_SKBMOD=m
 CONFIG_NET_ACT_IFE=m
 CONFIG_NET_ACT_TUNNEL_KEY=m
+CONFIG_NET_ACT_MPLS=m
 CONFIG_NET_IFE_SKBMARK=m
 CONFIG_NET_IFE_SKBPRIO=m
 CONFIG_NET_IFE_SKBTCINDEX=m
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json b/tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json
new file mode 100644
index 0000000..04f2a94
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/mpls.json
@@ -0,0 +1,1088 @@
+[
+    {
+        "id": "a933",
+        "name": "Add MPLS dec_ttl action with pipe opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl pipe index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*pipe.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "08d1",
+        "name": "Add mpls dec_ttl action with pass opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl pass index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mpls index 8",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*pass.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "d786",
+        "name": "Add mpls dec_ttl action with drop opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl drop index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mpls index 8",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*drop.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "f334",
+        "name": "Add mpls dec_ttl action with reclassify opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl reclassify index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mpls index 8",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*reclassify.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "29bd",
+        "name": "Add mpls dec_ttl action with continue opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl continue index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mpls index 8",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*continue.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "48df",
+        "name": "Add mpls dec_ttl action with jump opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl jump 10 index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*jump 10.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "62eb",
+        "name": "Add mpls dec_ttl action with trap opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl trap index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl trap.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "9118",
+        "name": "Add mpls dec_ttl action with invalid opcode",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl foo index 8",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*foo.*index 8 ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "6ce1",
+        "name": "Add mpls dec_ttl action with label (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl label 20",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*label.*20.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "352f",
+        "name": "Add mpls dec_ttl action with tc (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl tc 3",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*tc.*3.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "fa1c",
+        "name": "Add mpls dec_ttl action with ttl (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl ttl 20",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*ttl.*20.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "6b79",
+        "name": "Add mpls dec_ttl action with bos (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls dec_ttl bos 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*dec_ttl.*bos.*1.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d4c4",
+        "name": "Add mpls pop action with ip proto",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol ipv4",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*protocol.*ip.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "92fe",
+        "name": "Add mpls pop action with mpls proto",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol mpls_mc",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*protocol.*mpls_mc.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "7e23",
+        "name": "Add mpls pop action with no protocol (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "6182",
+        "name": "Add mpls pop action with label (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol ipv4 label 20",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*label.*20.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "6475",
+        "name": "Add mpls pop action with tc (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol ipv4 tc 3",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*tc.*3.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "067b",
+        "name": "Add mpls pop action with ttl (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol ipv4 ttl 20",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*ttl.*20.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "7316",
+        "name": "Add mpls pop action with bos (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls pop protocol ipv4 bos 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*bos.*1.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "38cc",
+        "name": "Add mpls push action with label",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*ttl.*[0-9]+.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "c281",
+        "name": "Add mpls push action with mpls_mc protocol",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push protocol mpls_mc label 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_mc.*label.*20.*ttl.*[0-9]+.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "5db4",
+        "name": "Add mpls push action with label, tc and ttl",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 20 tc 3 ttl 128",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*tc.*3.*ttl.*128.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "16eb",
+        "name": "Add mpls push action with label and bos",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 20 bos 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*bos.*1.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "d69d",
+        "name": "Add mpls push action with no label (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "e8e4",
+        "name": "Add mpls push action with ipv4 protocol (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push protocol ipv4 label 20",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*ttl.*[0-9]+.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "ecd0",
+        "name": "Add mpls push action with out of range label (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 1048576",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*1048576.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d303",
+        "name": "Add mpls push action with out of range tc (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 20 tc 8",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*tc.*8.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "fd6e",
+        "name": "Add mpls push action with ttl of 0 (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls push label 20 ttl 0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*20.*ttl.*0.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "19e9",
+        "name": "Add mpls mod action with mpls label",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod label 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*label.*20.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "1fde",
+        "name": "Add mpls mod action with max mpls label",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod label 0xfffff",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*label.*1048575.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "0c50",
+        "name": "Add mpls mod action with mpls label exceeding max (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod label 0x100000",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*label.*1048576.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "10b6",
+        "name": "Add mpls mod action with mpls label of MPLS_LABEL_IMPLNULL (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod label 3",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*label.*3.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "57c9",
+        "name": "Add mpls mod action with mpls min tc",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod tc 0",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*tc.*0.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "6872",
+        "name": "Add mpls mod action with mpls max tc",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod tc 7",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*tc.*7.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "a70a",
+        "name": "Add mpls mod action with mpls tc exceeding max (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod tc 8",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*tc.*4.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "6ed5",
+        "name": "Add mpls mod action with mpls ttl",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod ttl 128",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*ttl.*128.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "b80f",
+        "name": "Add mpls mod action with mpls max ttl",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod ttl 255",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*ttl.*255.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "8864",
+        "name": "Add mpls mod action with mpls min ttl",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod ttl 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*ttl.*1.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "6c06",
+        "name": "Add mpls mod action with mpls ttl of 0 (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod ttl 0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*ttl.*0.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "b5d8",
+        "name": "Add mpls mod action with mpls ttl exceeding max (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod ttl 256",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*ttl.*256.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "451f",
+        "name": "Add mpls mod action with mpls max bos",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod bos 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*bos.*1.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "a1ed",
+        "name": "Add mpls mod action with mpls min bos",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod bos 0",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*bos.*0.*pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "3dcf",
+        "name": "Add mpls mod action with mpls bos exceeding max (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod bos 2",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*bos.*2.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "db7c",
+        "name": "Add mpls mod action with protocol (invalid)",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mpls mod protocol ipv4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*modify.*protocol.*ip.*pipe",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "b070",
+        "name": "Replace existing mpls push action with new ID",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mpls push label 20 pipe index 12"
+        ],
+        "cmdUnderTest": "$TC actions replace action mpls push label 30 pipe index 12",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mpls index 12",
+        "matchPattern": "action order [0-9]+: mpls.*push.*protocol.*mpls_uc.*label.*30.*pipe.*index 12 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mpls"
+        ]
+    },
+    {
+        "id": "6cce",
+        "name": "Delete mpls pop action",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mpls pop protocol ipv4 index 44"
+        ],
+        "cmdUnderTest": "$TC actions del action mpls index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*pop.*index 44 ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d138",
+        "name": "Flush mpls actions",
+        "category": [
+            "actions",
+            "mpls"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action mpls",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mpls push label 10 index 10",
+            "$TC actions add action mpls push label 20 index 20",
+            "$TC actions add action mpls push label 30 index 30",
+            "$TC actions add action mpls push label 40 index 40"
+        ],
+        "cmdUnderTest": "$TC actions flush action mpls",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mpls",
+        "matchPattern": "action order [0-9]+: mpls.*push.*",
+        "matchCount": "0",
+        "teardown": []
+    }
+]
-- 
2.7.4


^ permalink raw reply related

* Re: [PATCH iproute2-next] ip: bond: add peer notification delay support
From: Stephen Hemminger @ 2019-07-07 16:41 UTC (permalink / raw)
  To: Vincent Bernat; +Cc: netdev
In-Reply-To: <20190706211145.16438-1-vincent@bernat.ch>

On Sat,  6 Jul 2019 23:11:45 +0200
Vincent Bernat <vincent@bernat.ch> wrote:

> Ability to tweak the delay between gratuitous ND/ARP packets has been
> added in kernel commit 07a4ddec3ce9 ("bonding: add an option to
> specify a delay between peer notifications"), through
> IFLA_BOND_PEER_NOTIF_DELAY attribute. Add support to set and show this
> value.
> 
> Example:
> 
>     $ ip -d link set bond0 type bond peer_notif_delay 1000
>     $ ip -d link l dev bond0
>     2: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
>     state UP mode DEFAULT group default qlen 1000
>         link/ether 50:54:33:00:00:01 brd ff:ff:ff:ff:ff:ff
>         bond mode active-backup active_slave eth0 miimon 100 updelay 0
>     downdelay 0 peer_notif_delay 1000 use_carrier 1 arp_interval 0
>     arp_validate none arp_all_targets any primary eth0
>     primary_reselect always fail_over_mac active xmit_hash_policy
>     layer2 resend_igmp 1 num_grat_arp 5 all_slaves_active 0 min_links
>     0 lp_interval 1 packets_per_slave 1 lacp_rate slow ad_select
>     stable tlb_dynamic_lb 1 addrgenmode eu
> 
> Signed-off-by: Vincent Bernat <vincent@bernat.ch>
> --

My only nit, is that peer_notif_delay is not a good choice for name.
None of the other options are abbreviated. Please use peer_notify_delay

^ permalink raw reply


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