net/mlx5e: kTLS, Do not fill edge for the DUMP WQEs in TX flow (f713ce1d) · Commits · 戴 / test

Every single DUMP WQE resides in a single WQEBB. As the pi is calculated per each one separately, there is no real need for a contiguous room for them, allow them to populate different WQ fragments. This reduces WQ waste and improves its utilization. Signed-off-by:

Tariq Toukan <tariqt@mellanox.com> Reviewed-by:

Maxim Mikityanskiy <maximmi@mellanox.com> Signed-off-by:

Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -272,6 +272,7 @@ tx_post_resync_dump(struct mlx5e_txqsq sq, skb_frag_t frag, u32 tisn, bool fir
		int fsz;
		u16 pi;

		BUILD_BUG_ON(MLX5E_KTLS_DUMP_WQEBBS != 1);
		pi = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->pc);
		wqe = MLX5E_TLS_FETCH_DUMP_WQE(sq, pi);

		@@ -340,7 +341,6 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_ktls_offload_context_tx *priv_tx,
		struct mlx5e_sq_stats *stats = sq->stats;
		enum mlx5e_ktls_sync_retval ret;
		struct tx_sync_info info = {};
		u8 num_wqebbs;
		int i = 0;

		ret = tx_sync_info_get(priv_tx, seq, datalen, &info);
		@@ -369,9 +369,6 @@ mlx5e_ktls_tx_handle_ooo(struct mlx5e_ktls_offload_context_tx *priv_tx,
		return MLX5E_KTLS_SYNC_DONE;
		}

		num_wqebbs = mlx5e_ktls_dumps_num_wqebbs(sq, info.nr_frags, info.sync_len);
		mlx5e_txqsq_get_next_pi(sq, num_wqebbs);

		for (; i < info.nr_frags; i++) {
		unsigned int orig_fsz, frag_offset = 0, n = 0;
		skb_frag_t *f = &info.frags[i];

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