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Message-ID: <20191016225028.2100206-3-jonathan.lemon@gmail.com>
Date: Wed, 16 Oct 2019 15:50:20 -0700
From: Jonathan Lemon <jonathan.lemon@...il.com>
To: <brouer@...hat.com>, <ilias.apalodimas@...aro.org>,
<saeedm@...lanox.com>, <tariqt@...lanox.com>
CC: <netdev@...r.kernel.org>, <kernel-team@...com>
Subject: [PATCH 02/10 net-next] net/mlx5e: RX, Manage RX pages only via page pool API
From: Tariq Toukan <tariqt@...lanox.com>
Do not directly call page allocator functions, but use
page pool API only.
Obsolete the recycle param.
Issue: 1487631
Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Signed-off-by: Jonathan Lemon <jonathan.lemon@...il.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 4 +-
.../net/ethernet/mellanox/mlx5/core/en/xdp.c | 9 ++--
.../net/ethernet/mellanox/mlx5/core/en_rx.c | 46 +++++++------------
3 files changed, 23 insertions(+), 36 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 0595cdcff594..a1ab5c76177d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -928,8 +928,8 @@ bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
- struct mlx5e_dma_info *dma_info,
- bool recycle);
+ struct mlx5e_dma_info *dma_info);
+void mlx5e_page_release(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
index f049e0ac308a..1b26061cb959 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
@@ -354,8 +354,7 @@ static bool mlx5e_xmit_xdp_frame(struct mlx5e_xdpsq *sq,
static void mlx5e_free_xdpsq_desc(struct mlx5e_xdpsq *sq,
struct mlx5e_xdp_wqe_info *wi,
- u32 *xsk_frames,
- bool recycle)
+ u32 *xsk_frames)
{
struct mlx5e_xdp_info_fifo *xdpi_fifo = &sq->db.xdpi_fifo;
u16 i;
@@ -372,7 +371,7 @@ static void mlx5e_free_xdpsq_desc(struct mlx5e_xdpsq *sq,
break;
case MLX5E_XDP_XMIT_MODE_PAGE:
/* XDP_TX from the regular RQ */
- mlx5e_page_release_dynamic(xdpi.page.rq, &xdpi.page.di, recycle);
+ mlx5e_page_release_dynamic(xdpi.page.rq, &xdpi.page.di);
break;
case MLX5E_XDP_XMIT_MODE_XSK:
/* AF_XDP send */
@@ -430,7 +429,7 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq)
sqcc += wi->num_wqebbs;
- mlx5e_free_xdpsq_desc(sq, wi, &xsk_frames, true);
+ mlx5e_free_xdpsq_desc(sq, wi, &xsk_frames);
} while (!last_wqe);
} while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq)));
@@ -461,7 +460,7 @@ void mlx5e_free_xdpsq_descs(struct mlx5e_xdpsq *sq)
sq->cc += wi->num_wqebbs;
- mlx5e_free_xdpsq_desc(sq, wi, &xsk_frames, false);
+ mlx5e_free_xdpsq_desc(sq, wi, &xsk_frames);
}
if (xsk_frames)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index a3773f8a4931..033b8264a4e4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -217,31 +217,20 @@ void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info)
}
void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
- struct mlx5e_dma_info *dma_info,
- bool recycle)
+ struct mlx5e_dma_info *dma_info)
{
mlx5e_page_dma_unmap(rq, dma_info);
- if (likely(recycle)) {
- page_pool_recycle_direct(rq->page_pool, dma_info->page);
- } else {
- page_pool_release_page(rq->page_pool, dma_info->page);
- put_page(dma_info->page);
- }
+ page_pool_recycle_direct(rq->page_pool, dma_info->page);
}
static inline void mlx5e_page_release(struct mlx5e_rq *rq,
- struct mlx5e_dma_info *dma_info,
- bool recycle)
+ struct mlx5e_dma_info *dma_info)
{
if (rq->umem)
- /* The `recycle` parameter is ignored, and the page is always
- * put into the Reuse Ring, because there is no way to return
- * the page to the userspace when the interface goes down.
- */
mlx5e_xsk_page_release(rq, dma_info);
else
- mlx5e_page_release_dynamic(rq, dma_info, recycle);
+ mlx5e_page_release_dynamic(rq, dma_info);
}
static inline int mlx5e_get_rx_frag(struct mlx5e_rq *rq,
@@ -261,11 +250,10 @@ static inline int mlx5e_get_rx_frag(struct mlx5e_rq *rq,
}
static inline void mlx5e_put_rx_frag(struct mlx5e_rq *rq,
- struct mlx5e_wqe_frag_info *frag,
- bool recycle)
+ struct mlx5e_wqe_frag_info *frag)
{
if (frag->last_in_page)
- mlx5e_page_release(rq, frag->di, recycle);
+ mlx5e_page_release(rq, frag->di);
}
static inline struct mlx5e_wqe_frag_info *get_frag(struct mlx5e_rq *rq, u16 ix)
@@ -293,26 +281,25 @@ static int mlx5e_alloc_rx_wqe(struct mlx5e_rq *rq, struct mlx5e_rx_wqe_cyc *wqe,
free_frags:
while (--i >= 0)
- mlx5e_put_rx_frag(rq, --frag, true);
+ mlx5e_put_rx_frag(rq, --frag);
return err;
}
static inline void mlx5e_free_rx_wqe(struct mlx5e_rq *rq,
- struct mlx5e_wqe_frag_info *wi,
- bool recycle)
+ struct mlx5e_wqe_frag_info *wi)
{
int i;
for (i = 0; i < rq->wqe.info.num_frags; i++, wi++)
- mlx5e_put_rx_frag(rq, wi, recycle);
+ mlx5e_put_rx_frag(rq, wi);
}
void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix)
{
struct mlx5e_wqe_frag_info *wi = get_frag(rq, ix);
- mlx5e_free_rx_wqe(rq, wi, false);
+ mlx5e_free_rx_wqe(rq, wi);
}
static int mlx5e_alloc_rx_wqes(struct mlx5e_rq *rq, u16 ix, u8 wqe_bulk)
@@ -388,7 +375,7 @@ mlx5e_free_rx_mpwqe(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi, bool recycle
for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++)
if (no_xdp_xmit || !test_bit(i, wi->xdp_xmit_bitmap))
- mlx5e_page_release(rq, &dma_info[i], recycle);
+ mlx5e_page_release(rq, &dma_info[i]);
}
static void mlx5e_post_rx_mpwqe(struct mlx5e_rq *rq, u8 n)
@@ -476,7 +463,7 @@ static int mlx5e_alloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix)
err_unmap:
while (--i >= 0) {
dma_info--;
- mlx5e_page_release(rq, dma_info, true);
+ mlx5e_page_release(rq, dma_info);
}
err:
@@ -1120,7 +1107,7 @@ void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
napi_gro_receive(rq->cq.napi, skb);
free_wqe:
- mlx5e_free_rx_wqe(rq, wi, true);
+ mlx5e_free_rx_wqe(rq, wi);
wq_cyc_pop:
mlx5_wq_cyc_pop(wq);
}
@@ -1167,7 +1154,7 @@ void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
napi_gro_receive(rq->cq.napi, skb);
free_wqe:
- mlx5e_free_rx_wqe(rq, wi, true);
+ mlx5e_free_rx_wqe(rq, wi);
wq_cyc_pop:
mlx5_wq_cyc_pop(wq);
}
@@ -1478,7 +1465,7 @@ void mlx5i_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
napi_gro_receive(rq->cq.napi, skb);
wq_free_wqe:
- mlx5e_free_rx_wqe(rq, wi, true);
+ mlx5e_free_rx_wqe(rq, wi);
mlx5_wq_cyc_pop(wq);
}
@@ -1518,7 +1505,8 @@ void mlx5e_ipsec_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
napi_gro_receive(rq->cq.napi, skb);
wq_free_wqe:
- mlx5e_free_rx_wqe(rq, wi, true);
+ mlx5e_free_rx_wqe(rq, wi);
+wq_cyc_pop:
mlx5_wq_cyc_pop(wq);
}
--
2.17.1
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