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Date: Mon, 29 Mar 2021 21:27:33 -0700
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>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 04/12] net:mlx5e: Add PTP-TIR and PTP-RQT
From: Aya Levin <ayal@...dia.com>
Add PTP-TIR and initiate its RQT to allow PTP-RQ to integrate into the
safe-reopen flow on configuration change. Add rx_ptp_support flag on a
profile and turn it on for ETH driver. With this flag set, create a
redirect-RQT for PTP-RQ.
Signed-off-by: Aya Levin <ayal@...dia.com>
Reviewed-by: Tariq Toukan <tariqt@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +
.../net/ethernet/mellanox/mlx5/core/en/ptp.c | 9 +++++
.../net/ethernet/mellanox/mlx5/core/en/ptp.h | 1 +
.../net/ethernet/mellanox/mlx5/core/en_main.c | 40 +++++++++++++++++--
.../net/ethernet/mellanox/mlx5/core/en_rep.c | 2 +
.../ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 1 +
.../mellanox/mlx5/core/ipoib/ipoib_vlan.c | 1 +
7 files changed, 52 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 8f6ccd54057a..f31b5ccc27d0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -837,6 +837,7 @@ struct mlx5e_priv {
struct mlx5e_tir inner_indir_tir[MLX5E_NUM_INDIR_TIRS];
struct mlx5e_tir direct_tir[MLX5E_MAX_NUM_CHANNELS];
struct mlx5e_tir xsk_tir[MLX5E_MAX_NUM_CHANNELS];
+ struct mlx5e_tir ptp_tir;
struct mlx5e_rss_params rss_params;
u32 tx_rates[MLX5E_MAX_NUM_SQS];
@@ -916,6 +917,7 @@ struct mlx5e_profile {
const struct mlx5e_rx_handlers *rx_handlers;
int max_tc;
u8 rq_groups;
+ bool rx_ptp_support;
};
void mlx5e_build_ptys2ethtool_map(void);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
index 4595d2388d83..c1c41c8656dc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
@@ -663,3 +663,12 @@ void mlx5e_ptp_deactivate_channel(struct mlx5e_ptp *c)
napi_disable(&c->napi);
}
+
+int mlx5e_ptp_get_rqn(struct mlx5e_ptp *c, u32 *rqn)
+{
+ if (!c || !test_bit(MLX5E_PTP_STATE_RX, c->state))
+ return -EINVAL;
+
+ *rqn = c->rq.rqn;
+ return 0;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h
index cc6a48a43233..460b167887bc 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.h
@@ -48,6 +48,7 @@ int mlx5e_ptp_open(struct mlx5e_priv *priv, struct mlx5e_params *params,
void mlx5e_ptp_close(struct mlx5e_ptp *c);
void mlx5e_ptp_activate_channel(struct mlx5e_ptp *c);
void mlx5e_ptp_deactivate_channel(struct mlx5e_ptp *c);
+int mlx5e_ptp_get_rqn(struct mlx5e_ptp *c, u32 *rqn);
enum {
MLX5E_SKB_CB_CQE_HWTSTAMP = BIT(0),
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 7ecde284c57c..7cf12342afe6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -2329,7 +2329,8 @@ static u32 mlx5e_get_direct_rqn(struct mlx5e_priv *priv, int ix,
}
static void mlx5e_redirect_rqts(struct mlx5e_priv *priv,
- struct mlx5e_redirect_rqt_param rrp)
+ struct mlx5e_redirect_rqt_param rrp,
+ struct mlx5e_redirect_rqt_param *ptp_rrp)
{
u32 rqtn;
int ix;
@@ -2355,11 +2356,17 @@ static void mlx5e_redirect_rqts(struct mlx5e_priv *priv,
rqtn = priv->direct_tir[ix].rqt.rqtn;
mlx5e_redirect_rqt(priv, rqtn, 1, direct_rrp);
}
+ if (ptp_rrp) {
+ rqtn = priv->ptp_tir.rqt.rqtn;
+ mlx5e_redirect_rqt(priv, rqtn, 1, *ptp_rrp);
+ }
}
static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv,
struct mlx5e_channels *chs)
{
+ bool rx_ptp_support = priv->profile->rx_ptp_support;
+ struct mlx5e_redirect_rqt_param *ptp_rrp_p = NULL;
struct mlx5e_redirect_rqt_param rrp = {
.is_rss = true,
{
@@ -2369,12 +2376,22 @@ static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv,
}
},
};
+ struct mlx5e_redirect_rqt_param ptp_rrp;
+
+ if (rx_ptp_support) {
+ u32 ptp_rqn;
- mlx5e_redirect_rqts(priv, rrp);
+ ptp_rrp.is_rss = false;
+ ptp_rrp.rqn = mlx5e_ptp_get_rqn(priv->channels.ptp, &ptp_rqn) ?
+ priv->drop_rq.rqn : ptp_rqn;
+ ptp_rrp_p = &ptp_rrp;
+ }
+ mlx5e_redirect_rqts(priv, rrp, ptp_rrp_p);
}
static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv)
{
+ bool rx_ptp_support = priv->profile->rx_ptp_support;
struct mlx5e_redirect_rqt_param drop_rrp = {
.is_rss = false,
{
@@ -2382,7 +2399,7 @@ static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv)
},
};
- mlx5e_redirect_rqts(priv, drop_rrp);
+ mlx5e_redirect_rqts(priv, drop_rrp, rx_ptp_support ? &drop_rrp : NULL);
}
static const struct mlx5e_tirc_config tirc_default_config[MLX5E_NUM_INDIR_TIRS] = {
@@ -4944,10 +4961,18 @@ static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
if (unlikely(err))
goto err_destroy_xsk_rqts;
+ err = mlx5e_create_direct_rqts(priv, &priv->ptp_tir, 1);
+ if (err)
+ goto err_destroy_xsk_tirs;
+
+ err = mlx5e_create_direct_tirs(priv, &priv->ptp_tir, 1);
+ if (err)
+ goto err_destroy_ptp_rqt;
+
err = mlx5e_create_flow_steering(priv);
if (err) {
mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
- goto err_destroy_xsk_tirs;
+ goto err_destroy_ptp_direct_tir;
}
err = mlx5e_tc_nic_init(priv);
@@ -4968,6 +4993,10 @@ static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
mlx5e_tc_nic_cleanup(priv);
err_destroy_flow_steering:
mlx5e_destroy_flow_steering(priv);
+err_destroy_ptp_direct_tir:
+ mlx5e_destroy_direct_tirs(priv, &priv->ptp_tir, 1);
+err_destroy_ptp_rqt:
+ mlx5e_destroy_direct_rqts(priv, &priv->ptp_tir, 1);
err_destroy_xsk_tirs:
mlx5e_destroy_direct_tirs(priv, priv->xsk_tir, max_nch);
err_destroy_xsk_rqts:
@@ -4994,6 +5023,8 @@ static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
mlx5e_accel_cleanup_rx(priv);
mlx5e_tc_nic_cleanup(priv);
mlx5e_destroy_flow_steering(priv);
+ mlx5e_destroy_direct_tirs(priv, &priv->ptp_tir, 1);
+ mlx5e_destroy_direct_rqts(priv, &priv->ptp_tir, 1);
mlx5e_destroy_direct_tirs(priv, priv->xsk_tir, max_nch);
mlx5e_destroy_direct_rqts(priv, priv->xsk_tir, max_nch);
mlx5e_destroy_direct_tirs(priv, priv->direct_tir, max_nch);
@@ -5106,6 +5137,7 @@ static const struct mlx5e_profile mlx5e_nic_profile = {
.rq_groups = MLX5E_NUM_RQ_GROUPS(XSK),
.stats_grps = mlx5e_nic_stats_grps,
.stats_grps_num = mlx5e_nic_stats_grps_num,
+ .rx_ptp_support = true,
};
/* mlx5e generic netdev management API (move to en_common.c) */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index b597fc3b192b..9ef8e4a671a7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1062,6 +1062,7 @@ static const struct mlx5e_profile mlx5e_rep_profile = {
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5e_rep_stats_grps,
.stats_grps_num = mlx5e_rep_stats_grps_num,
+ .rx_ptp_support = false,
};
static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
@@ -1082,6 +1083,7 @@ static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
.rq_groups = MLX5E_NUM_RQ_GROUPS(XSK),
.stats_grps = mlx5e_ul_rep_stats_grps,
.stats_grps_num = mlx5e_ul_rep_stats_grps_num,
+ .rx_ptp_support = false,
};
/* e-Switch vport representors */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 63ca73105149..b65b0cefc5b3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -473,6 +473,7 @@ static const struct mlx5e_profile mlx5i_nic_profile = {
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
.stats_grps = mlx5i_stats_grps,
.stats_grps_num = mlx5i_stats_grps_num,
+ .rx_ptp_support = false,
};
/* mlx5i netdev NDos */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c
index 3d0a18a0bed4..18ee21b06a00 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c
@@ -350,6 +350,7 @@ static const struct mlx5e_profile mlx5i_pkey_nic_profile = {
.rx_handlers = &mlx5i_rx_handlers,
.max_tc = MLX5I_MAX_NUM_TC,
.rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
+ .rx_ptp_support = false,
};
const struct mlx5e_profile *mlx5i_pkey_get_profile(void)
--
2.30.2
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