rpms
/
kmod-redhat-mlx5_core
21
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'c8'
${ noResults }
kmod-redhat-mlx5_core/SOURCES/0023-netdrv-net-mlx5e-Gener...

400 lines
12 KiB
Raw Permalink Blame History

From 6258b703b584c06c8f63788431a978bd4db8bb97 Mon Sep 17 00:00:00 2001
From: Alaa Hleihel <ahleihel@redhat.com>
Date: Sun, 10 May 2020 14:51:47 -0400
Subject: [PATCH 023/312] [netdrv] net/mlx5e: Generalize tx reporter's
functionality
Message-id: <20200510145245.10054-25-ahleihel@redhat.com>
Patchwork-id: 306564
Patchwork-instance: patchwork
O-Subject: [RHEL8.3 BZ 1789378 v2 24/82] net/mlx5e: Generalize tx reporter's functionality
Bugzilla: 1790198 1789378
RH-Acked-by: Kamal Heib <kheib@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
RH-Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Bugzilla: http://bugzilla.redhat.com/1789378
Bugzilla: http://bugzilla.redhat.com/1790198
Upstream: v5.4-rc1
Conflicts:
- drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
Conext diff due to already mereged commit:
e7a981050a7f ("devlink: propagate extack down to health reporter ops")
---> Function mlx5e_tx_reporter_recover takes also extact parameter now.
commit c50de4af1d635fab3a5c8bd358f55623c01f7ee5
Author: Aya Levin <ayal@mellanox.com>
Date: Mon Jul 1 15:08:13 2019 +0300
net/mlx5e: Generalize tx reporter's functionality
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>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.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 | 14 +++
.../ethernet/mellanox/mlx5/core/en/reporter_tx.c | 140 ++++++---------------
4 files changed, 137 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 35079e1f1f6f..4369dfd04a34 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..fc3112921bd3
--- /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 = {};
+ 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 c7a5a149011e..386bda6104aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/health.h
@@ -11,4 +11,18 @@ void mlx5e_reporter_tx_destroy(struct mlx5e_priv *priv);
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 62b95f62e4dc..6f9f42ab3005 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)
{
@@ -39,41 +31,20 @@ 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)
+static int mlx5e_tx_reporter_err_cqe_recover(void *ctx)
{
- struct mlx5_core_dev *mdev = sq->channel->mdev;
- struct net_device *dev = sq->channel->netdev;
- struct mlx5e_modify_sq_param msp = {0};
+ struct mlx5_core_dev *mdev;
+ struct net_device *dev;
+ struct mlx5e_txqsq *sq;
+ u8 state;
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;
-}
+ sq = ctx;
+ mdev = sq->channel->mdev;
+ dev = sq->channel->netdev;
-static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
-{
- struct mlx5_core_dev *mdev = sq->channel->mdev;
- struct net_device *dev = sq->channel->netdev;
- u8 state;
- int err;
+ if (!test_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state))
+ return 0;
err = mlx5_core_query_sq_state(mdev, sq->sqn, &state);
if (err) {
@@ -96,7 +67,7 @@ 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)
goto out;
@@ -111,102 +82,66 @@ static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
return err;
}
-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 mlx5_eq_comp *eq = sq->cq.mcq.eq;
- u32 eqe_count;
-
- 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);
+ struct mlx5_eq_comp *eq;
+ struct mlx5e_txqsq *sq;
+ int err;
- eqe_count = mlx5_eq_poll_irq_disabled(eq);
- if (!eqe_count) {
+ sq = ctx;
+ eq = sq->cq.mcq.eq;
+ err = mlx5e_health_channel_eq_recover(eq, sq->channel);
+ if (err)
clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
- return -EIO;
- }
- netdev_err(sq->channel->netdev, "Recover %d eqes on EQ 0x%x\n",
- eqe_count, eq->core.eqn);
- sq->channel->stats->eq_rearm++;
- return 0;
+ 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)
-{
- return err_ctx->recover(err_ctx->sq);
-}
-
-static int mlx5e_tx_reporter_recover_all(struct mlx5e_priv *priv)
+static int mlx5e_tx_reporter_recover_from_ctx(struct mlx5e_err_ctx *err_ctx)
{
- 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
@@ -289,8 +224,9 @@ int mlx5e_reporter_tx_create(struct mlx5e_priv *priv)
{
struct devlink_health_reporter *reporter;
struct mlx5_core_dev *mdev = priv->mdev;
- struct devlink *devlink = priv_to_devlink(mdev);
+ struct devlink *devlink;
+ devlink = priv_to_devlink(mdev);
reporter =
devlink_health_reporter_create(devlink, &mlx5_tx_reporter_ops,
MLX5_REPORTER_TX_GRACEFUL_PERIOD,
--
2.13.6
Reference in new issue View Git Blame Copy Permalink