netdev - [net-next 07/15] net/mlx5e: E-Switch, Add support for tx_port

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Date:   Wed, 16 Feb 2022 23:56:24 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, Aya Levin <ayal@...dia.com>,
        Tariq Toukan <tariqt@...dia.com>,
        Maor Dickman <maord@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 07/15] net/mlx5e: E-Switch, Add support for tx_port_ts in switchdev mode

From: Aya Levin <ayal@...dia.com>

When turning on tx_port_ts (private flag) a PTP-SQ is created. Consider
this queue when adding rules matching SQs to VPORTs. Otherwise the
traffic on this queue won't reach the wire.

Signed-off-by: Aya Levin <ayal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
 .../net/ethernet/mellanox/mlx5/core/en_rep.c   | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 4459e5585075..6070b8a13818 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -55,6 +55,7 @@
 #include "diag/en_rep_tracepoint.h"
 #include "en_accel/ipsec.h"
 #include "en/tc/int_port.h"
+#include "en/ptp.h"
 
 #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
 	max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
@@ -401,13 +402,18 @@ int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
+	int n, tc, nch, num_sqs = 0;
 	struct mlx5e_channel *c;
-	int n, tc, num_sqs = 0;
 	int err = -ENOMEM;
+	bool ptp_sq;
 	u32 *sqs;
 
-	sqs = kcalloc(priv->channels.num * mlx5e_get_dcb_num_tc(&priv->channels.params),
-		      sizeof(*sqs), GFP_KERNEL);
+	ptp_sq = !!(priv->channels.ptp &&
+		    MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_PORT_TS));
+	nch = priv->channels.num + ptp_sq;
+
+	sqs = kcalloc(nch * mlx5e_get_dcb_num_tc(&priv->channels.params), sizeof(*sqs),
+		      GFP_KERNEL);
 	if (!sqs)
 		goto out;
 
@@ -416,6 +422,12 @@ int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
 		for (tc = 0; tc < c->num_tc; tc++)
 			sqs[num_sqs++] = c->sq[tc].sqn;
 	}
+	if (ptp_sq) {
+		struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
+
+		for (tc = 0; tc < ptp_ch->num_tc; tc++)
+			sqs[num_sqs++] = ptp_ch->ptpsq[tc].txqsq.sqn;
+	}
 
 	err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
 	kfree(sqs);
-- 
2.34.1