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net/mlx5e: Optimize the common case condition in mlx5e_select_queue

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Check all booleans for special queues at once, when deciding whether to
go to the fast path in mlx5e_select_queue. Pack them into bitfields to
have some room for extensibility.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maxim Mikityanskiy 2022-01-25 12:53:00 +02:00 committed by Saeed Mahameed
parent 3a9e5fff2a
commit 71753b8ec1
1 changed files with 8 additions and 3 deletions
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11
drivers/net/ethernet/mellanox/mlx5/core/en/selq.c
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@ -12,8 +12,13 @@ struct mlx5e_selq_params {
unsigned int num_regular_queues;
unsigned int num_channels;
unsigned int num_tcs;
bool is_htb;
bool is_ptp;
union {
u8 is_special_queues;
struct {
bool is_htb : 1;
bool is_ptp : 1;
};
};
};
int mlx5e_selq_init(struct mlx5e_selq *selq, struct mutex *state_lock)
@ -164,7 +169,7 @@ u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
if (unlikely(!selq))
return 0;
if (likely(!selq->is_ptp && !selq->is_htb)) {
if (likely(!selq->is_special_queues)) {
/* No special queues, netdev_pick_tx returns one of the regular ones. */
txq_ix = netdev_pick_tx(dev, skb, NULL);