On 2020-09-04 18:06, Willem de Bruijn wrote:
On Thu, Sep 3, 2020 at 11:01 PM Saeed Mahameed <sae...@nvidia.com> wrote:From: Maxim Mikityanskiy <maxi...@mellanox.com> mlx5e_txwqe_complete performs some actions that can be taken to separate functions: 1. Update the flags needed for hardware timestamping. 2. Stop the TX queue if it's full. Take these actions into separate functions to be reused by the MPWQE code in the following commit and to maintain clear responsibilities of functions. Signed-off-by: Maxim Mikityanskiy <maxi...@mellanox.com> Signed-off-by: Saeed Mahameed <sae...@nvidia.com> --- .../net/ethernet/mellanox/mlx5/core/en_tx.c | 23 ++++++++++++++----- 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 9ced350150b3..3b68c8333875 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -311,6 +311,20 @@ static inline void mlx5e_sq_calc_wqe_attr(struct sk_buff *skb, }; } +static inline void mlx5e_tx_skb_update_hwts_flags(struct sk_buff *skb) +{ + if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; +}Subjective, but this helper adds a level of indirection and introduces code churn without simplying anything, imho.
It's added for the sake of being reused in non-MPWQE and MPWQE flows.
+static inline void mlx5e_tx_check_stop(struct mlx5e_txqsq *sq) +{ + if (unlikely(!mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc, sq->stop_room))) { + netif_tx_stop_queue(sq->txq); + sq->stats->stopped++; + } +} + static inline void mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb, const struct mlx5e_tx_attr *attr, @@ -332,14 +346,11 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb, cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | attr->opcode); cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | wqe_attr->ds_cnt); - if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) - skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + mlx5e_tx_skb_update_hwts_flags(skb); sq->pc += wi->num_wqebbs; - if (unlikely(!mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, sq->stop_room))) { - netif_tx_stop_queue(sq->txq); - sq->stats->stopped++; - } + + mlx5e_tx_check_stop(sq); send_doorbell = __netdev_tx_sent_queue(sq->txq, attr->num_bytes, xmit_more); if (send_doorbell) -- 2.26.2
