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Date: Fri, 1 Nov 2019 21:59:20 +0000
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
Erez Alfasi <ereza@...lanox.com>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 13/15] net/mlx5: LAG, Use port enumerators
From: Erez Alfasi <ereza@...lanox.com>
Instead of using explicit array indexes, simply use
ports enumerators to make the code more readable.
Fixes: 7907f23adc18 ("net/mlx5: Implement RoCE LAG feature")
Signed-off-by: Erez Alfasi <ereza@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/lag.c | 65 ++++++++++---------
drivers/net/ethernet/mellanox/mlx5/core/lag.h | 5 ++
.../net/ethernet/mellanox/mlx5/core/lag_mp.c | 56 ++++++++--------
3 files changed, 69 insertions(+), 57 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index c5ef2ff26465..fc0d9583475d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -145,34 +145,35 @@ static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
{
*port1 = 1;
*port2 = 2;
- if (!tracker->netdev_state[0].tx_enabled ||
- !tracker->netdev_state[0].link_up) {
+ if (!tracker->netdev_state[MLX5_LAG_P1].tx_enabled ||
+ !tracker->netdev_state[MLX5_LAG_P1].link_up) {
*port1 = 2;
return;
}
- if (!tracker->netdev_state[1].tx_enabled ||
- !tracker->netdev_state[1].link_up)
+ if (!tracker->netdev_state[MLX5_LAG_P2].tx_enabled ||
+ !tracker->netdev_state[MLX5_LAG_P2].link_up)
*port2 = 1;
}
void mlx5_modify_lag(struct mlx5_lag *ldev,
struct lag_tracker *tracker)
{
- struct mlx5_core_dev *dev0 = ldev->pf[0].dev;
+ struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
u8 v2p_port1, v2p_port2;
int err;
mlx5_infer_tx_affinity_mapping(tracker, &v2p_port1,
&v2p_port2);
- if (v2p_port1 != ldev->v2p_map[0] ||
- v2p_port2 != ldev->v2p_map[1]) {
- ldev->v2p_map[0] = v2p_port1;
- ldev->v2p_map[1] = v2p_port2;
+ if (v2p_port1 != ldev->v2p_map[MLX5_LAG_P1] ||
+ v2p_port2 != ldev->v2p_map[MLX5_LAG_P2]) {
+ ldev->v2p_map[MLX5_LAG_P1] = v2p_port1;
+ ldev->v2p_map[MLX5_LAG_P2] = v2p_port2;
mlx5_core_info(dev0, "modify lag map port 1:%d port 2:%d",
- ldev->v2p_map[0], ldev->v2p_map[1]);
+ ldev->v2p_map[MLX5_LAG_P1],
+ ldev->v2p_map[MLX5_LAG_P2]);
err = mlx5_cmd_modify_lag(dev0, v2p_port1, v2p_port2);
if (err)
@@ -185,16 +186,17 @@ void mlx5_modify_lag(struct mlx5_lag *ldev,
static int mlx5_create_lag(struct mlx5_lag *ldev,
struct lag_tracker *tracker)
{
- struct mlx5_core_dev *dev0 = ldev->pf[0].dev;
+ struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
int err;
- mlx5_infer_tx_affinity_mapping(tracker, &ldev->v2p_map[0],
- &ldev->v2p_map[1]);
+ mlx5_infer_tx_affinity_mapping(tracker, &ldev->v2p_map[MLX5_LAG_P1],
+ &ldev->v2p_map[MLX5_LAG_P2]);
mlx5_core_info(dev0, "lag map port 1:%d port 2:%d",
- ldev->v2p_map[0], ldev->v2p_map[1]);
+ ldev->v2p_map[MLX5_LAG_P1], ldev->v2p_map[MLX5_LAG_P2]);
- err = mlx5_cmd_create_lag(dev0, ldev->v2p_map[0], ldev->v2p_map[1]);
+ err = mlx5_cmd_create_lag(dev0, ldev->v2p_map[MLX5_LAG_P1],
+ ldev->v2p_map[MLX5_LAG_P2]);
if (err)
mlx5_core_err(dev0,
"Failed to create LAG (%d)\n",
@@ -207,7 +209,7 @@ int mlx5_activate_lag(struct mlx5_lag *ldev,
u8 flags)
{
bool roce_lag = !!(flags & MLX5_LAG_FLAG_ROCE);
- struct mlx5_core_dev *dev0 = ldev->pf[0].dev;
+ struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
int err;
err = mlx5_create_lag(ldev, tracker);
@@ -229,7 +231,7 @@ int mlx5_activate_lag(struct mlx5_lag *ldev,
static int mlx5_deactivate_lag(struct mlx5_lag *ldev)
{
- struct mlx5_core_dev *dev0 = ldev->pf[0].dev;
+ struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
bool roce_lag = __mlx5_lag_is_roce(ldev);
int err;
@@ -252,14 +254,15 @@ static int mlx5_deactivate_lag(struct mlx5_lag *ldev)
static bool mlx5_lag_check_prereq(struct mlx5_lag *ldev)
{
- if (!ldev->pf[0].dev || !ldev->pf[1].dev)
+ if (!ldev->pf[MLX5_LAG_P1].dev || !ldev->pf[MLX5_LAG_P2].dev)
return false;
#ifdef CONFIG_MLX5_ESWITCH
- return mlx5_esw_lag_prereq(ldev->pf[0].dev, ldev->pf[1].dev);
+ return mlx5_esw_lag_prereq(ldev->pf[MLX5_LAG_P1].dev,
+ ldev->pf[MLX5_LAG_P2].dev);
#else
- return (!mlx5_sriov_is_enabled(ldev->pf[0].dev) &&
- !mlx5_sriov_is_enabled(ldev->pf[1].dev));
+ return (!mlx5_sriov_is_enabled(ldev->pf[MLX5_LAG_P1].dev) &&
+ !mlx5_sriov_is_enabled(ldev->pf[MLX5_LAG_P2].dev));
#endif
}
@@ -285,8 +288,8 @@ static void mlx5_lag_remove_ib_devices(struct mlx5_lag *ldev)
static void mlx5_do_bond(struct mlx5_lag *ldev)
{
- struct mlx5_core_dev *dev0 = ldev->pf[0].dev;
- struct mlx5_core_dev *dev1 = ldev->pf[1].dev;
+ struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
+ struct mlx5_core_dev *dev1 = ldev->pf[MLX5_LAG_P2].dev;
struct lag_tracker tracker;
bool do_bond, roce_lag;
int err;
@@ -692,10 +695,11 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev)
goto unlock;
if (ldev->tracker.tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP) {
- ndev = ldev->tracker.netdev_state[0].tx_enabled ?
- ldev->pf[0].netdev : ldev->pf[1].netdev;
+ ndev = ldev->tracker.netdev_state[MLX5_LAG_P1].tx_enabled ?
+ ldev->pf[MLX5_LAG_P1].netdev :
+ ldev->pf[MLX5_LAG_P2].netdev;
} else {
- ndev = ldev->pf[0].netdev;
+ ndev = ldev->pf[MLX5_LAG_P1].netdev;
}
if (ndev)
dev_hold(ndev);
@@ -717,7 +721,8 @@ bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv)
return true;
ldev = mlx5_lag_dev_get(dev);
- if (!ldev || !__mlx5_lag_is_roce(ldev) || ldev->pf[0].dev == dev)
+ if (!ldev || !__mlx5_lag_is_roce(ldev) ||
+ ldev->pf[MLX5_LAG_P1].dev == dev)
return true;
/* If bonded, we do not add an IB device for PF1. */
@@ -746,11 +751,11 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
ldev = mlx5_lag_dev_get(dev);
if (ldev && __mlx5_lag_is_roce(ldev)) {
num_ports = MLX5_MAX_PORTS;
- mdev[0] = ldev->pf[0].dev;
- mdev[1] = ldev->pf[1].dev;
+ mdev[MLX5_LAG_P1] = ldev->pf[MLX5_LAG_P1].dev;
+ mdev[MLX5_LAG_P2] = ldev->pf[MLX5_LAG_P2].dev;
} else {
num_ports = 1;
- mdev[0] = dev;
+ mdev[MLX5_LAG_P1] = dev;
}
for (i = 0; i < num_ports; ++i) {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.h b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
index 1dea0b1c9826..f1068aac6406 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.h
@@ -7,6 +7,11 @@
#include "mlx5_core.h"
#include "lag_mp.h"
+enum {
+ MLX5_LAG_P1,
+ MLX5_LAG_P2,
+};
+
enum {
MLX5_LAG_FLAG_ROCE = 1 << 0,
MLX5_LAG_FLAG_SRIOV = 1 << 1,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
index 13e2944b1274..5169864dd656 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
@@ -11,10 +11,11 @@
static bool mlx5_lag_multipath_check_prereq(struct mlx5_lag *ldev)
{
- if (!ldev->pf[0].dev || !ldev->pf[1].dev)
+ if (!ldev->pf[MLX5_LAG_P1].dev || !ldev->pf[MLX5_LAG_P2].dev)
return false;
- return mlx5_esw_multipath_prereq(ldev->pf[0].dev, ldev->pf[1].dev);
+ return mlx5_esw_multipath_prereq(ldev->pf[MLX5_LAG_P1].dev,
+ ldev->pf[MLX5_LAG_P2].dev);
}
static bool __mlx5_lag_is_multipath(struct mlx5_lag *ldev)
@@ -52,36 +53,36 @@ static void mlx5_lag_set_port_affinity(struct mlx5_lag *ldev, int port)
switch (port) {
case 0:
- tracker.netdev_state[0].tx_enabled = true;
- tracker.netdev_state[1].tx_enabled = true;
- tracker.netdev_state[0].link_up = true;
- tracker.netdev_state[1].link_up = true;
+ tracker.netdev_state[MLX5_LAG_P1].tx_enabled = true;
+ tracker.netdev_state[MLX5_LAG_P2].tx_enabled = true;
+ tracker.netdev_state[MLX5_LAG_P1].link_up = true;
+ tracker.netdev_state[MLX5_LAG_P2].link_up = true;
break;
case 1:
- tracker.netdev_state[0].tx_enabled = true;
- tracker.netdev_state[0].link_up = true;
- tracker.netdev_state[1].tx_enabled = false;
- tracker.netdev_state[1].link_up = false;
+ tracker.netdev_state[MLX5_LAG_P1].tx_enabled = true;
+ tracker.netdev_state[MLX5_LAG_P1].link_up = true;
+ tracker.netdev_state[MLX5_LAG_P2].tx_enabled = false;
+ tracker.netdev_state[MLX5_LAG_P2].link_up = false;
break;
case 2:
- tracker.netdev_state[0].tx_enabled = false;
- tracker.netdev_state[0].link_up = false;
- tracker.netdev_state[1].tx_enabled = true;
- tracker.netdev_state[1].link_up = true;
+ tracker.netdev_state[MLX5_LAG_P1].tx_enabled = false;
+ tracker.netdev_state[MLX5_LAG_P1].link_up = false;
+ tracker.netdev_state[MLX5_LAG_P2].tx_enabled = true;
+ tracker.netdev_state[MLX5_LAG_P2].link_up = true;
break;
default:
- mlx5_core_warn(ldev->pf[0].dev, "Invalid affinity port %d",
- port);
+ mlx5_core_warn(ldev->pf[MLX5_LAG_P1].dev,
+ "Invalid affinity port %d", port);
return;
}
- if (tracker.netdev_state[0].tx_enabled)
- mlx5_notifier_call_chain(ldev->pf[0].dev->priv.events,
+ if (tracker.netdev_state[MLX5_LAG_P1].tx_enabled)
+ mlx5_notifier_call_chain(ldev->pf[MLX5_LAG_P1].dev->priv.events,
MLX5_DEV_EVENT_PORT_AFFINITY,
(void *)0);
- if (tracker.netdev_state[1].tx_enabled)
- mlx5_notifier_call_chain(ldev->pf[1].dev->priv.events,
+ if (tracker.netdev_state[MLX5_LAG_P2].tx_enabled)
+ mlx5_notifier_call_chain(ldev->pf[MLX5_LAG_P2].dev->priv.events,
MLX5_DEV_EVENT_PORT_AFFINITY,
(void *)0);
@@ -141,11 +142,12 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev,
/* Verify next hops are ports of the same hca */
fib_nh0 = fib_info_nh(fi, 0);
fib_nh1 = fib_info_nh(fi, 1);
- if (!(fib_nh0->fib_nh_dev == ldev->pf[0].netdev &&
- fib_nh1->fib_nh_dev == ldev->pf[1].netdev) &&
- !(fib_nh0->fib_nh_dev == ldev->pf[1].netdev &&
- fib_nh1->fib_nh_dev == ldev->pf[0].netdev)) {
- mlx5_core_warn(ldev->pf[0].dev, "Multipath offload require two ports of the same HCA\n");
+ if (!(fib_nh0->fib_nh_dev == ldev->pf[MLX5_LAG_P1].netdev &&
+ fib_nh1->fib_nh_dev == ldev->pf[MLX5_LAG_P2].netdev) &&
+ !(fib_nh0->fib_nh_dev == ldev->pf[MLX5_LAG_P2].netdev &&
+ fib_nh1->fib_nh_dev == ldev->pf[MLX5_LAG_P1].netdev)) {
+ mlx5_core_warn(ldev->pf[MLX5_LAG_P1].dev,
+ "Multipath offload require two ports of the same HCA\n");
return;
}
@@ -267,8 +269,8 @@ static int mlx5_lag_fib_event(struct notifier_block *nb,
return notifier_from_errno(-EINVAL);
}
fib_dev = fib_info_nh(fen_info->fi, 0)->fib_nh_dev;
- if (fib_dev != ldev->pf[0].netdev &&
- fib_dev != ldev->pf[1].netdev) {
+ if (fib_dev != ldev->pf[MLX5_LAG_P1].netdev &&
+ fib_dev != ldev->pf[MLX5_LAG_P2].netdev) {
return NOTIFY_DONE;
}
fib_work = mlx5_lag_init_fib_work(ldev, event);
--
2.21.0
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