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From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
	netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
	Gal Pressman <gal@nvidia.com>,
	Rahul Rameshbabu <rrameshbabu@nvidia.com>,
	Adham Faris <afaris@nvidia.com>
Subject: [net-next 13/15] net/mlx5e: Rename misleading skb_pc/cc references in ptp code
Date: Wed,  5 Apr 2023 19:02:30 -0700	[thread overview]
Message-ID: <20230406020232.83844-14-saeed@kernel.org> (raw)
In-Reply-To: <20230406020232.83844-1-saeed@kernel.org>

From: Gal Pressman <gal@nvidia.com>

The 'skb_pc/cc' naming is misleading as the values hold the
producer/consumer indices (masked values), not the counters. Rename to
'skb_pi/ci'.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Adham Faris <afaris@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/ptp.c  | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
index eb5aeba3addf..eb5abd0e55d9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
@@ -81,23 +81,23 @@ void mlx5e_skb_cb_hwtstamp_handler(struct sk_buff *skb, int hwtstamp_type,
 
 #define PTP_WQE_CTR2IDX(val) ((val) & ptpsq->ts_cqe_ctr_mask)
 
-static bool mlx5e_ptp_ts_cqe_drop(struct mlx5e_ptpsq *ptpsq, u16 skb_cc, u16 skb_id)
+static bool mlx5e_ptp_ts_cqe_drop(struct mlx5e_ptpsq *ptpsq, u16 skb_ci, u16 skb_id)
 {
-	return (ptpsq->ts_cqe_ctr_mask && (skb_cc != skb_id));
+	return (ptpsq->ts_cqe_ctr_mask && (skb_ci != skb_id));
 }
 
 static bool mlx5e_ptp_ts_cqe_ooo(struct mlx5e_ptpsq *ptpsq, u16 skb_id)
 {
-	u16 skb_cc = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
-	u16 skb_pc = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_pc);
+	u16 skb_ci = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
+	u16 skb_pi = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_pc);
 
-	if (PTP_WQE_CTR2IDX(skb_id - skb_cc) >= PTP_WQE_CTR2IDX(skb_pc - skb_cc))
+	if (PTP_WQE_CTR2IDX(skb_id - skb_ci) >= PTP_WQE_CTR2IDX(skb_pi - skb_ci))
 		return true;
 
 	return false;
 }
 
-static void mlx5e_ptp_skb_fifo_ts_cqe_resync(struct mlx5e_ptpsq *ptpsq, u16 skb_cc,
+static void mlx5e_ptp_skb_fifo_ts_cqe_resync(struct mlx5e_ptpsq *ptpsq, u16 skb_ci,
 					     u16 skb_id, int budget)
 {
 	struct skb_shared_hwtstamps hwts = {};
@@ -105,13 +105,13 @@ static void mlx5e_ptp_skb_fifo_ts_cqe_resync(struct mlx5e_ptpsq *ptpsq, u16 skb_
 
 	ptpsq->cq_stats->resync_event++;
 
-	while (skb_cc != skb_id) {
+	while (skb_ci != skb_id) {
 		skb = mlx5e_skb_fifo_pop(&ptpsq->skb_fifo);
 		hwts.hwtstamp = mlx5e_skb_cb_get_hwts(skb)->cqe_hwtstamp;
 		skb_tstamp_tx(skb, &hwts);
 		ptpsq->cq_stats->resync_cqe++;
 		napi_consume_skb(skb, budget);
-		skb_cc = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
+		skb_ci = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
 	}
 }
 
@@ -120,7 +120,7 @@ static void mlx5e_ptp_handle_ts_cqe(struct mlx5e_ptpsq *ptpsq,
 				    int budget)
 {
 	u16 skb_id = PTP_WQE_CTR2IDX(be16_to_cpu(cqe->wqe_counter));
-	u16 skb_cc = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
+	u16 skb_ci = PTP_WQE_CTR2IDX(ptpsq->skb_fifo_cc);
 	struct mlx5e_txqsq *sq = &ptpsq->txqsq;
 	struct sk_buff *skb;
 	ktime_t hwtstamp;
@@ -131,13 +131,13 @@ static void mlx5e_ptp_handle_ts_cqe(struct mlx5e_ptpsq *ptpsq,
 		goto out;
 	}
 
-	if (mlx5e_ptp_ts_cqe_drop(ptpsq, skb_cc, skb_id)) {
+	if (mlx5e_ptp_ts_cqe_drop(ptpsq, skb_ci, skb_id)) {
 		if (mlx5e_ptp_ts_cqe_ooo(ptpsq, skb_id)) {
 			/* already handled by a previous resync */
 			ptpsq->cq_stats->ooo_cqe_drop++;
 			return;
 		}
-		mlx5e_ptp_skb_fifo_ts_cqe_resync(ptpsq, skb_cc, skb_id, budget);
+		mlx5e_ptp_skb_fifo_ts_cqe_resync(ptpsq, skb_ci, skb_id, budget);
 	}
 
 	skb = mlx5e_skb_fifo_pop(&ptpsq->skb_fifo);
-- 
2.39.2


  parent reply	other threads:[~2023-04-06  2:03 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-06  2:02 [pull request][net-next 00/15] mlx5 updates 2023-04-05 Saeed Mahameed
2023-04-06  2:02 ` [net-next 01/15] net/mlx5e: Set default can_offload action Saeed Mahameed
2023-04-07  2:20   ` patchwork-bot+netdevbpf
2023-04-06  2:02 ` [net-next 02/15] net/mlx5e: TC, Remove unused vf_tun variable Saeed Mahameed
2023-04-06  2:02 ` [net-next 03/15] net/mlx5e: TC, Move main flow attribute cleanup to helper func Saeed Mahameed
2023-04-06  2:02 ` [net-next 04/15] net/mlx5e: CT: Use per action stats Saeed Mahameed
2023-04-06  2:02 ` [net-next 05/15] net/mlx5e: TC, Remove CT action reordering Saeed Mahameed
2023-04-06  2:02 ` [net-next 06/15] net/mlx5e: TC, Remove special handling of CT action Saeed Mahameed
2023-04-06  2:02 ` [net-next 07/15] net/mlx5e: TC, Remove multiple ct actions limitation Saeed Mahameed
2023-04-06  2:02 ` [net-next 08/15] net/mlx5e: TC, Remove tuple rewrite and ct limitation Saeed Mahameed
2023-04-06  2:02 ` [net-next 09/15] net/mlx5e: TC, Remove mirror " Saeed Mahameed
2023-04-06  2:02 ` [net-next 10/15] net/mlx5e: TC, Remove sample " Saeed Mahameed
2023-04-06  2:02 ` [net-next 11/15] net/mlx5e: Remove redundant macsec code Saeed Mahameed
2023-04-06  2:02 ` [net-next 12/15] net/mlx5: Update cyclecounter shift value to improve ptp free running mode precision Saeed Mahameed
2023-04-06  2:02 ` Saeed Mahameed [this message]
2023-04-06  2:02 ` [net-next 14/15] net/mlx5e: Fix RQ SW state layout in RQ devlink health diagnostics Saeed Mahameed
2023-04-06  2:02 ` [net-next 15/15] net/mlx5e: Fix SQ SW state layout in SQ " Saeed Mahameed

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