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Message-Id: <20181206001305.20586-8-saeedm@mellanox.com>
Date: Wed, 5 Dec 2018 16:13:05 -0800
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next V2 7/7] net/mlx5e: Improve ethtool private-flags code structure
From: Tariq Toukan <tariqt@...lanox.com>
Refactor the code of private-flags setter.
Replace consecutive calls to mlx5e_handle_pflag with a loop
that uses a preset set of parameters.
Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 18 +++--
.../ethernet/mellanox/mlx5/core/en_ethtool.c | 76 ++++++++-----------
2 files changed, 41 insertions(+), 53 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index c6686256a92a..8760d10ad5a1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -49,6 +49,7 @@
#include <net/switchdev.h>
#include <net/xdp.h>
#include <linux/net_dim.h>
+#include <linux/bits.h>
#include "wq.h"
#include "mlx5_core.h"
#include "en_stats.h"
@@ -211,22 +212,23 @@ struct mlx5e_umr_wqe {
extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
enum mlx5e_priv_flag {
- MLX5E_PFLAG_RX_CQE_BASED_MODER = (1 << 0),
- MLX5E_PFLAG_TX_CQE_BASED_MODER = (1 << 1),
- MLX5E_PFLAG_RX_CQE_COMPRESS = (1 << 2),
- MLX5E_PFLAG_RX_STRIDING_RQ = (1 << 3),
- MLX5E_PFLAG_RX_NO_CSUM_COMPLETE = (1 << 4),
+ MLX5E_PFLAG_RX_CQE_BASED_MODER,
+ MLX5E_PFLAG_TX_CQE_BASED_MODER,
+ MLX5E_PFLAG_RX_CQE_COMPRESS,
+ MLX5E_PFLAG_RX_STRIDING_RQ,
+ MLX5E_PFLAG_RX_NO_CSUM_COMPLETE,
+ MLX5E_NUM_PFLAGS, /* Keep last */
};
#define MLX5E_SET_PFLAG(params, pflag, enable) \
do { \
if (enable) \
- (params)->pflags |= (pflag); \
+ (params)->pflags |= BIT(pflag); \
else \
- (params)->pflags &= ~(pflag); \
+ (params)->pflags &= ~(BIT(pflag)); \
} while (0)
-#define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (pflag)))
+#define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (BIT(pflag))))
#ifdef CONFIG_MLX5_CORE_EN_DCB
#define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index e868d42c83cb..da4bb62ac528 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -135,14 +135,15 @@ void mlx5e_build_ptys2ethtool_map(void)
ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT);
}
-static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
- "rx_cqe_moder",
- "tx_cqe_moder",
- "rx_cqe_compress",
- "rx_striding_rq",
- "rx_no_csum_complete",
+typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable);
+
+struct pflag_desc {
+ char name[ETH_GSTRING_LEN];
+ mlx5e_pflag_handler handler;
};
+static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS];
+
int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
{
int i, num_stats = 0;
@@ -153,7 +154,7 @@ int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
num_stats += mlx5e_stats_grps[i].get_num_stats(priv);
return num_stats;
case ETH_SS_PRIV_FLAGS:
- return ARRAY_SIZE(mlx5e_priv_flags);
+ return MLX5E_NUM_PFLAGS;
case ETH_SS_TEST:
return mlx5e_self_test_num(priv);
/* fallthrough */
@@ -183,8 +184,9 @@ void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv, u32 stringset, u8 *data)
switch (stringset) {
case ETH_SS_PRIV_FLAGS:
- for (i = 0; i < ARRAY_SIZE(mlx5e_priv_flags); i++)
- strcpy(data + i * ETH_GSTRING_LEN, mlx5e_priv_flags[i]);
+ for (i = 0; i < MLX5E_NUM_PFLAGS; i++)
+ strcpy(data + i * ETH_GSTRING_LEN,
+ mlx5e_priv_flags[i].name);
break;
case ETH_SS_TEST:
@@ -1485,8 +1487,6 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev,
return 0;
}
-typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable);
-
static int set_pflag_cqe_based_moder(struct net_device *netdev, bool enable,
bool is_rx_cq)
{
@@ -1649,23 +1649,30 @@ static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable)
return 0;
}
+static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = {
+ { "rx_cqe_moder", set_pflag_rx_cqe_based_moder },
+ { "tx_cqe_moder", set_pflag_tx_cqe_based_moder },
+ { "rx_cqe_compress", set_pflag_rx_cqe_compress },
+ { "rx_striding_rq", set_pflag_rx_striding_rq },
+ { "rx_no_csum_complete", set_pflag_rx_no_csum_complete },
+};
+
static int mlx5e_handle_pflag(struct net_device *netdev,
u32 wanted_flags,
- enum mlx5e_priv_flag flag,
- mlx5e_pflag_handler pflag_handler)
+ enum mlx5e_priv_flag flag)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
- bool enable = !!(wanted_flags & flag);
+ bool enable = !!(wanted_flags & BIT(flag));
u32 changes = wanted_flags ^ priv->channels.params.pflags;
int err;
- if (!(changes & flag))
+ if (!(changes & BIT(flag)))
return 0;
- err = pflag_handler(netdev, enable);
+ err = mlx5e_priv_flags[flag].handler(netdev, enable);
if (err) {
- netdev_err(netdev, "%s private flag 0x%x failed err %d\n",
- enable ? "Enable" : "Disable", flag, err);
+ netdev_err(netdev, "%s private flag '%s' failed err %d\n",
+ enable ? "Enable" : "Disable", mlx5e_priv_flags[flag].name, err);
return err;
}
@@ -1676,38 +1683,17 @@ static int mlx5e_handle_pflag(struct net_device *netdev,
static int mlx5e_set_priv_flags(struct net_device *netdev, u32 pflags)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
+ enum mlx5e_priv_flag pflag;
int err;
mutex_lock(&priv->state_lock);
- err = mlx5e_handle_pflag(netdev, pflags,
- MLX5E_PFLAG_RX_CQE_BASED_MODER,
- set_pflag_rx_cqe_based_moder);
- if (err)
- goto out;
-
- err = mlx5e_handle_pflag(netdev, pflags,
- MLX5E_PFLAG_TX_CQE_BASED_MODER,
- set_pflag_tx_cqe_based_moder);
- if (err)
- goto out;
-
- err = mlx5e_handle_pflag(netdev, pflags,
- MLX5E_PFLAG_RX_CQE_COMPRESS,
- set_pflag_rx_cqe_compress);
- if (err)
- goto out;
- err = mlx5e_handle_pflag(netdev, pflags,
- MLX5E_PFLAG_RX_STRIDING_RQ,
- set_pflag_rx_striding_rq);
- if (err)
- goto out;
-
- err = mlx5e_handle_pflag(netdev, pflags,
- MLX5E_PFLAG_RX_NO_CSUM_COMPLETE,
- set_pflag_rx_no_csum_complete);
+ for (pflag = 0; pflag < MLX5E_NUM_PFLAGS; pflag++) {
+ err = mlx5e_handle_pflag(netdev, pflags, pflag);
+ if (err)
+ break;
+ }
-out:
mutex_unlock(&priv->state_lock);
/* Need to fix some features.. */
--
2.19.2
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