From: Tariq Toukan <tariqt@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Eran Ben Elisha <eranbe@mellanox.com>,
Saeed Mahameed <saeedm@mellanox.com>,
Jakub Kicinski <jakub.kicinski@netronome.com>,
moshe@mellanox.com, Tariq Toukan <tariqt@mellanox.com>
Subject: [PATCH net-next 11/12] net/mlx5e: Introduce a fenced NOP WQE posting function
Date: Fri, 5 Jul 2019 18:30:21 +0300 [thread overview]
Message-ID: <1562340622-4423-12-git-send-email-tariqt@mellanox.com> (raw)
In-Reply-To: <1562340622-4423-1-git-send-email-tariqt@mellanox.com>
Similar to the existing mlx5e_post_nop(), but marks a fence
in the WQE control segment.
Added as a separate new function to not hurt the performance
of the common case.
To be used in a downstream patch of the series.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
index af6aec717d4e..ef16f9e41cf4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
@@ -58,6 +58,24 @@
return wqe;
}
+static inline struct mlx5e_tx_wqe *
+mlx5e_post_nop_fence(struct mlx5_wq_cyc *wq, u32 sqn, u16 *pc)
+{
+ u16 pi = mlx5_wq_cyc_ctr2ix(wq, *pc);
+ struct mlx5e_tx_wqe *wqe = mlx5_wq_cyc_get_wqe(wq, pi);
+ struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
+
+ memset(cseg, 0, sizeof(*cseg));
+
+ cseg->opmod_idx_opcode = cpu_to_be32((*pc << 8) | MLX5_OPCODE_NOP);
+ cseg->qpn_ds = cpu_to_be32((sqn << 8) | 0x01);
+ cseg->fm_ce_se = MLX5_FENCE_MODE_INITIATOR_SMALL;
+
+ (*pc)++;
+
+ return wqe;
+}
+
static inline void
mlx5e_fill_sq_frag_edge(struct mlx5e_txqsq *sq, struct mlx5_wq_cyc *wq,
u16 pi, u16 nnops)
--
1.8.3.1
next prev parent reply other threads:[~2019-07-05 15:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-05 15:30 [PATCH net-next 00/12] mlx5 TLS TX HW offload support Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 01/12] net/mlx5: Accel, Expose accel wrapper for IPsec FPGA function Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 02/12] net/mlx5: Kconfig, Better organize compilation flags Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 03/12] net/mlx5: Add crypto library to support create/destroy encryption key Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 04/12] net/mlx5: Accel, Add core TLS support for the Connect-X family Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 05/12] net/mlx5e: Move helper functions to a new txrx datapath header Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 06/12] net/mlx5e: Tx, Enforce L4 inline copy when needed Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 07/12] net/mlx5e: Tx, Make SQ WQE fetch function type generic Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 08/12] net/mlx5e: Tx, Don't implicitly assume SKB-less wqe has one WQEBB Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 09/12] net/mlx5e: Tx, Unconstify SQ stop room Tariq Toukan
2019-07-05 15:30 ` [PATCH net-next 10/12] net/mlx5e: Re-work TIS creation functions Tariq Toukan
2019-07-05 15:30 ` Tariq Toukan [this message]
2019-07-05 15:30 ` [PATCH net-next 12/12] net/mlx5e: Add kTLS TX HW offload support Tariq Toukan
2019-07-05 20:17 ` Jakub Kicinski
2019-07-05 20:19 ` [PATCH net-next 00/12] mlx5 TLS " Jakub Kicinski
2019-07-05 23:29 ` David Miller
2019-07-07 6:44 ` Tariq Toukan
2019-07-17 17:41 ` Jakub Kicinski
2019-07-18 7:40 ` Tariq Toukan
2019-07-18 17:08 ` Jakub Kicinski
2019-07-18 19:09 ` David Miller
2019-07-21 15:19 ` Tariq Toukan
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