From 3c41a6893c6cf8a0874f5cb36edf495b2d352733 Mon Sep 17 00:00:00 2001
From: Alaa Hleihel <ahleihel@redhat.com>
Date: Tue, 19 May 2020 07:48:52 -0400
Subject: [PATCH 230/312] [netdrv] net/mlx5e: Rx, Split rep rx mpwqe handler
from nic
Message-id: <20200519074934.6303-22-ahleihel@redhat.com>
Patchwork-id: 310524
Patchwork-instance: patchwork
O-Subject: [RHEL8.3 BZ 1663246 21/63] net/mlx5e: Rx, Split rep rx mpwqe handler from nic
Bugzilla: 1790219 1790218 1663246
RH-Acked-by: Marcelo Leitner <mleitner@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: John Linville <linville@redhat.com>
RH-Acked-by: Ivan Vecera <ivecera@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
RH-Acked-by: Kamal Heib <kheib@redhat.com>
Bugzilla: http://bugzilla.redhat.com/1663246
Bugzilla: http://bugzilla.redhat.com/1790219
Bugzilla: http://bugzilla.redhat.com/1790218
Upstream: v5.7-rc1
commit dfd9e7500cd4b21b61d65907e02880b20de929aa
Author: Paul Blakey <paulb@mellanox.com>
Date: Sun Feb 16 12:01:29 2020 +0200
net/mlx5e: Rx, Split rep rx mpwqe handler from nic
Copy the current rep mpwqe rx handler which is also used by nic
profile. In the next patch, we will add rep specific logic, just
for the rep profile rx handler.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 4 +-
drivers/net/ethernet/mellanox/mlx5/core/en_rep.h | 2 +
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 54 ++++++++++++++++++++++++
3 files changed, 58 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index dcf97bd4fa49..1cb47297285e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1934,7 +1934,7 @@ static const struct mlx5e_profile mlx5e_rep_profile = {
.update_rx = mlx5e_update_rep_rx,
.update_stats = mlx5e_update_ndo_stats,
.rx_handlers.handle_rx_cqe = mlx5e_handle_rx_cqe_rep,
- .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
+ .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq_rep,
.max_tc = 1,
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5e_rep_stats_grps,
@@ -1954,7 +1954,7 @@ static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
.update_stats = mlx5e_update_ndo_stats,
.update_carrier = mlx5e_update_carrier,
.rx_handlers.handle_rx_cqe = mlx5e_handle_rx_cqe_rep,
- .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
+ .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq_rep,
.max_tc = MLX5E_MAX_NUM_TC,
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5e_ul_rep_stats_grps,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
index 4bc5d5cd071c..9f44293ff153 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
@@ -191,6 +191,8 @@ int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
+void mlx5e_handle_rx_cqe_mpwrq_rep(struct mlx5e_rq *rq,
+ struct mlx5_cqe64 *cqe);
int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv,
struct mlx5e_encap_entry *e);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 1d606e13a336..85c2428c2f3e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1233,6 +1233,60 @@ void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
wq_cyc_pop:
mlx5_wq_cyc_pop(wq);
}
+
+void mlx5e_handle_rx_cqe_mpwrq_rep(struct mlx5e_rq *rq,
+ struct mlx5_cqe64 *cqe)
+{
+ u16 cstrides = mpwrq_get_cqe_consumed_strides(cqe);
+ u16 wqe_id = be16_to_cpu(cqe->wqe_id);
+ struct mlx5e_mpw_info *wi = &rq->mpwqe.info[wqe_id];
+ u16 stride_ix = mpwrq_get_cqe_stride_index(cqe);
+ u32 wqe_offset = stride_ix << rq->mpwqe.log_stride_sz;
+ u32 head_offset = wqe_offset & (PAGE_SIZE - 1);
+ u32 page_idx = wqe_offset >> PAGE_SHIFT;
+ struct mlx5e_rx_wqe_ll *wqe;
+ struct mlx5_wq_ll *wq;
+ struct sk_buff *skb;
+ u16 cqe_bcnt;
+
+ wi->consumed_strides += cstrides;
+
+ if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
+ trigger_report(rq, cqe);
+ rq->stats->wqe_err++;
+ goto mpwrq_cqe_out;
+ }
+
+ if (unlikely(mpwrq_is_filler_cqe(cqe))) {
+ struct mlx5e_rq_stats *stats = rq->stats;
+
+ stats->mpwqe_filler_cqes++;
+ stats->mpwqe_filler_strides += cstrides;
+ goto mpwrq_cqe_out;
+ }
+
+ cqe_bcnt = mpwrq_get_cqe_byte_cnt(cqe);
+
+ skb = INDIRECT_CALL_2(rq->mpwqe.skb_from_cqe_mpwrq,
+ mlx5e_skb_from_cqe_mpwrq_linear,
+ mlx5e_skb_from_cqe_mpwrq_nonlinear,
+ rq, wi, cqe_bcnt, head_offset, page_idx);
+ if (!skb)
+ goto mpwrq_cqe_out;
+
+ mlx5e_complete_rx_cqe(rq, cqe, cqe_bcnt, skb);
+
+ napi_gro_receive(rq->cq.napi, skb);
+
+mpwrq_cqe_out:
+ if (likely(wi->consumed_strides < rq->mpwqe.num_strides))
+ return;
+
+ wq = &rq->mpwqe.wq;
+ wqe = mlx5_wq_ll_get_wqe(wq, wqe_id);
+ mlx5e_free_rx_mpwqe(rq, wi, true);
+ mlx5_wq_ll_pop(wq, cqe->wqe_id, &wqe->next.next_wqe_index);
+}
#endif
struct sk_buff *
--
2.13.6