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Message-Id: <20170124201652.2920-13-saeedm@mellanox.com>
Date: Tue, 24 Jan 2017 22:16:52 +0200
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
Shaker Daibes <shakerd@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 12/12] net/mlx5e: CQE compression control code reuse
From: Shaker Daibes <shakerd@...lanox.com>
This patch is intended for code reuse of mlx5e_modify_rx_cqe_compression
function.
Signed-off-by: Shaker Daibes <shakerd@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +-
drivers/net/ethernet/mellanox/mlx5/core/en_clock.c | 7 +++++--
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 13 ++-----------
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 8 ++------
4 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 8d660a018bf8..46f728de9e76 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -787,7 +787,7 @@ void mlx5e_pps_event_handler(struct mlx5e_priv *priv,
struct ptp_clock_event *event);
int mlx5e_hwstamp_set(struct net_device *dev, struct ifreq *ifr);
int mlx5e_hwstamp_get(struct net_device *dev, struct ifreq *ifr);
-void mlx5e_modify_rx_cqe_compression(struct mlx5e_priv *priv, bool val);
+void mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
u16 vid);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
index 349dc72cd2b6..37e66eef6fb5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
@@ -106,11 +106,12 @@ int mlx5e_hwstamp_set(struct net_device *dev, struct ifreq *ifr)
return -ERANGE;
}
+ mutex_lock(&priv->state_lock);
/* RX HW timestamp */
switch (config.rx_filter) {
case HWTSTAMP_FILTER_NONE:
/* Reset CQE compression to Admin default */
- mlx5e_modify_rx_cqe_compression(priv, priv->params.rx_cqe_compress_def);
+ mlx5e_modify_rx_cqe_compression_locked(priv, priv->params.rx_cqe_compress_def);
break;
case HWTSTAMP_FILTER_ALL:
case HWTSTAMP_FILTER_SOME:
@@ -128,14 +129,16 @@ int mlx5e_hwstamp_set(struct net_device *dev, struct ifreq *ifr)
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
/* Disable CQE compression */
netdev_warn(dev, "Disabling cqe compression");
- mlx5e_modify_rx_cqe_compression(priv, false);
+ mlx5e_modify_rx_cqe_compression_locked(priv, false);
config.rx_filter = HWTSTAMP_FILTER_ALL;
break;
default:
+ mutex_unlock(&priv->state_lock);
return -ERANGE;
}
memcpy(&priv->tstamp.hwtstamp_config, &config, sizeof(config));
+ mutex_unlock(&priv->state_lock);
return copy_to_user(ifr->ifr_data, &config,
sizeof(config)) ? -EFAULT : 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 9d520f8d6d1a..6c1a5cb43f8c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1476,8 +1476,6 @@ static int set_pflag_rx_cqe_compress(struct net_device *netdev,
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5_core_dev *mdev = priv->mdev;
- int err = 0;
- bool reset;
if (!MLX5_CAP_GEN(mdev, cqe_compression))
return -ENOTSUPP;
@@ -1487,17 +1485,10 @@ static int set_pflag_rx_cqe_compress(struct net_device *netdev,
return -EINVAL;
}
- reset = test_bit(MLX5E_STATE_OPENED, &priv->state);
-
- if (reset)
- mlx5e_close_locked(netdev);
-
- MLX5E_SET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS, enable);
+ mlx5e_modify_rx_cqe_compression_locked(priv, enable);
priv->params.rx_cqe_compress_def = enable;
- if (reset)
- err = mlx5e_open_locked(netdev);
- return err;
+ return 0;
}
static int mlx5e_handle_pflag(struct net_device *netdev,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 20f116f8c457..ba50583ea3ed 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -155,17 +155,15 @@ static inline u32 mlx5e_decompress_cqes_start(struct mlx5e_rq *rq,
return mlx5e_decompress_cqes_cont(rq, cq, 1, budget_rem) - 1;
}
-void mlx5e_modify_rx_cqe_compression(struct mlx5e_priv *priv, bool val)
+void mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val)
{
bool was_opened;
if (!MLX5_CAP_GEN(priv->mdev, cqe_compression))
return;
- mutex_lock(&priv->state_lock);
-
if (MLX5E_GET_PFLAG(priv, MLX5E_PFLAG_RX_CQE_COMPRESS) == val)
- goto unlock;
+ return;
was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
if (was_opened)
@@ -176,8 +174,6 @@ void mlx5e_modify_rx_cqe_compression(struct mlx5e_priv *priv, bool val)
if (was_opened)
mlx5e_open_locked(priv->netdev);
-unlock:
- mutex_unlock(&priv->state_lock);
}
#define RQ_PAGE_SIZE(rq) ((1 << rq->buff.page_order) << PAGE_SHIFT)
--
2.11.0
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