[net-next 08/14] net/mlx5e: Enable napi in channel's activation stage

[Saeed Mahameed]

From: Tariq Toukan <tar...@mellanox.com>

The channel's napi is first needed upon activation, not creation.
Minimize its enabled scope by moving it from the channel's open/close
stage into the activate/deactivate stage.

Signed-off-by: Tariq Toukan <tar...@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maxi...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c  | 12 ++++++------
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 14 ++++++--------
 2 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
index eeddd1137dda..a76cfefec708 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
@@ -428,16 +428,13 @@ static int mlx5e_ptp_open_queues(struct mlx5e_port_ptp *c,
        if (err)
                return err;
 
-       napi_enable(&c->napi);
-
        err = mlx5e_ptp_open_txqsqs(c, cparams);
        if (err)
-               goto disable_napi;
+               goto close_cqs;
 
        return 0;
 
-disable_napi:
-       napi_disable(&c->napi);
+close_cqs:
        mlx5e_ptp_close_cqs(c);
 
        return err;
@@ -446,7 +443,6 @@ static int mlx5e_ptp_open_queues(struct mlx5e_port_ptp *c,
 static void mlx5e_ptp_close_queues(struct mlx5e_port_ptp *c)
 {
        mlx5e_ptp_close_txqsqs(c);
-       napi_disable(&c->napi);
        mlx5e_ptp_close_cqs(c);
 }
 
@@ -515,6 +511,8 @@ void mlx5e_ptp_activate_channel(struct mlx5e_port_ptp *c)
 {
        int tc;
 
+       napi_enable(&c->napi);
+
        for (tc = 0; tc < c->num_tc; tc++)
                mlx5e_activate_txqsq(&c->ptpsq[tc].txqsq);
 }
@@ -525,4 +523,6 @@ void mlx5e_ptp_deactivate_channel(struct mlx5e_port_ptp *c)
 
        for (tc = 0; tc < c->num_tc; tc++)
                mlx5e_deactivate_txqsq(&c->ptpsq[tc].txqsq);
+
+       napi_disable(&c->napi);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index b9d2cb6f178d..41c611197211 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1892,13 +1892,11 @@ static int mlx5e_open_queues(struct mlx5e_channel *c,
        if (err)
                goto err_close_rx_cq;
 
-       napi_enable(&c->napi);
-
        spin_lock_init(&c->async_icosq_lock);
 
        err = mlx5e_open_icosq(c, params, &cparam->async_icosq, 
&c->async_icosq);
        if (err)
-               goto err_disable_napi;
+               goto err_close_xdpsq_cq;
 
        err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
        if (err)
@@ -1941,9 +1939,7 @@ static int mlx5e_open_queues(struct mlx5e_channel *c,
 err_close_async_icosq:
        mlx5e_close_icosq(&c->async_icosq);
 
-err_disable_napi:
-       napi_disable(&c->napi);
-
+err_close_xdpsq_cq:
        if (c->xdp)
                mlx5e_close_cq(&c->rq_xdpsq.cq);
 
@@ -1974,7 +1970,6 @@ static void mlx5e_close_queues(struct mlx5e_channel *c)
        mlx5e_close_sqs(c);
        mlx5e_close_icosq(&c->icosq);
        mlx5e_close_icosq(&c->async_icosq);
-       napi_disable(&c->napi);
        if (c->xdp)
                mlx5e_close_cq(&c->rq_xdpsq.cq);
        mlx5e_close_cq(&c->rq.cq);
@@ -2059,6 +2054,8 @@ static void mlx5e_activate_channel(struct mlx5e_channel 
*c)
 {
        int tc;
 
+       napi_enable(&c->napi);
+
        for (tc = 0; tc < c->num_tc; tc++)
                mlx5e_activate_txqsq(&c->sq[tc]);
        mlx5e_activate_icosq(&c->icosq);
@@ -2081,8 +2078,9 @@ static void mlx5e_deactivate_channel(struct mlx5e_channel 
*c)
        mlx5e_deactivate_icosq(&c->icosq);
        for (tc = 0; tc < c->num_tc; tc++)
                mlx5e_deactivate_txqsq(&c->sq[tc]);
-
        mlx5e_qos_deactivate_queues(c);
+
+       napi_disable(&c->napi);
 }
 
 static void mlx5e_close_channel(struct mlx5e_channel *c)
-- 
2.29.2