From: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
To: dev@dpdk.org
Cc: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Subject: [dpdk-dev] [PATCH v2 4/6] net/mlx5: reduce Tx structure size
Date: Wed, 14 Sep 2016 14:18:05 +0200 [thread overview]
Message-ID: <16afb0501eefa02096ca1beb9c5a5591643ae29b.1473854800.git.nelio.laranjeiro@6wind.com> (raw)
In-Reply-To: <cover.1473854800.git.nelio.laranjeiro@6wind.com>
In-Reply-To: <cover.1473854800.git.nelio.laranjeiro@6wind.com>
Blue Flame is a buffer allocated with a power of two value, its size is
returned by Verbs in log2.
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
---
drivers/net/mlx5/mlx5_rxtx.c | 2 +-
drivers/net/mlx5/mlx5_rxtx.h | 2 +-
drivers/net/mlx5/mlx5_txq.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 4f28aa9..214922b 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -413,7 +413,7 @@ mlx5_tx_dbrec(struct txq *txq)
/* Ensure ordering between DB record and BF copy. */
rte_wmb();
rte_mov16(dst, (uint8_t *)data);
- txq->bf_offset ^= txq->bf_buf_size;
+ txq->bf_offset ^= (1 << txq->bf_buf_size);
}
/**
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 224614e..3dca8ca 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -249,8 +249,8 @@ struct txq {
uint16_t wqe_n; /* Number of WQ elements. */
uint16_t elts_n:4; /* (*elts)[] length (in log2). */
uint16_t cqe_n:4; /* Number of CQ elements (in log2). */
+ uint16_t bf_buf_size:4; /* Log2 Blueflame size. */
uint16_t bf_offset; /* Blueflame offset. */
- uint16_t bf_buf_size; /* Blueflame size. */
uint16_t max_inline; /* Multiple of RTE_CACHE_LINE_SIZE to inline. */
uint32_t qp_num_8s; /* QP number shifted by 8. */
volatile struct mlx5_cqe (*cqes)[]; /* Completion queue. */
diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 6145b69..9919e37 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -221,7 +221,7 @@ txq_setup(struct txq_ctrl *tmpl, struct txq_ctrl *txq_ctrl)
tmpl->txq.qp_db = &qp->gen_data.db[MLX5_SND_DBR];
tmpl->txq.bf_reg = qp->gen_data.bf->reg;
tmpl->txq.bf_offset = qp->gen_data.bf->offset;
- tmpl->txq.bf_buf_size = qp->gen_data.bf->buf_size;
+ tmpl->txq.bf_buf_size = log2above(qp->gen_data.bf->buf_size);
tmpl->txq.cq_db = cq->dbrec;
tmpl->txq.cqes =
(volatile struct mlx5_cqe (*)[])
--
2.1.4
next prev parent reply other threads:[~2016-09-14 12:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-07 7:09 [dpdk-dev] [PATCH 0/6] net/mlx5: performance improvement Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 1/6] net/mlx5: rework hardware structures Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 2/6] net/mlx5: reduce Tx and Rx structure size Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 3/6] " Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 4/6] net/mlx5: reduce Tx " Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 5/6] net/mlx5: reduce Tx and Rx " Nelio Laranjeiro
2016-09-07 7:09 ` [dpdk-dev] [PATCH 6/6] net/mlx5: remove gather loop on segments Nelio Laranjeiro
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 0/6] net/mlx5: performance improvement Nelio Laranjeiro
2016-09-19 16:17 ` Bruce Richardson
2016-09-20 7:25 ` Nélio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 " Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 1/6] net/mlx5: rework hardware structures Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 2/6] net/mlx5: reduce memory overhead of Rx/Tx descriptors Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 3/6] net/mlx5: reduce memory overhead for CQE handling Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 4/6] net/mlx5: reduce memory overhead for BF handling Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 5/6] net/mlx5: reduce memory overhead for WQE handling Nelio Laranjeiro
2016-09-20 8:53 ` [dpdk-dev] [PATCH v3 6/6] net/mlx5: remove gather loop on segments Nelio Laranjeiro
2016-09-21 10:22 ` [dpdk-dev] [PATCH v3 0/6] net/mlx5: performance improvement Bruce Richardson
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 1/6] net/mlx5: rework hardware structures Nelio Laranjeiro
2016-09-19 16:14 ` Bruce Richardson
2016-09-20 7:09 ` Nélio Laranjeiro
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 2/6] net/mlx5: reduce Tx and Rx structure size Nelio Laranjeiro
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 3/6] " Nelio Laranjeiro
2016-09-14 12:18 ` Nelio Laranjeiro [this message]
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 5/6] " Nelio Laranjeiro
2016-09-14 12:18 ` [dpdk-dev] [PATCH v2 6/6] net/mlx5: remove gather loop on segments Nelio Laranjeiro
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