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Commit 6b23f6ab authored by Maxim Mikityanskiy's avatar Maxim Mikityanskiy Committed by Saeed Mahameed
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net/mlx5e: Move mlx5e_select_queue to en/selq.c 

This commit moves mlx5e_select_queue and all stuff related to
ndo_select_queue to en/selq.c to put all stuff working with selq into a
separate file.
Signed-off-by: default avatarMaxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: default avatarTariq Toukan <tariqt@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 8bf30be7
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Inline Side-by-side
Showing with 117 additions and 113 deletions
drivers/net/ethernet/mellanox/mlx5/core/en/selq.c
View file @ 6b23f6ab
......@@ -5,6 +5,7 @@
#include <linux/slab.h>
#include <linux/netdevice.h>
#include "en.h"
#include "en/ptp.h"
struct mlx5e_selq_params {
unsigned int num_regular_queues;
......@@ -93,3 +94,114 @@ void mlx5e_selq_cancel(struct mlx5e_selq *selq)
selq->is_prepared = false;
}
#ifdef CONFIG_MLX5_CORE_EN_DCB
static int mlx5e_get_dscp_up(struct mlx5e_priv *priv, struct sk_buff *skb)
{
int dscp_cp = 0;
if (skb->protocol == htons(ETH_P_IP))
dscp_cp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
else if (skb->protocol == htons(ETH_P_IPV6))
dscp_cp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
return priv->dcbx_dp.dscp2prio[dscp_cp];
}
#endif
static u16 mlx5e_select_ptpsq(struct net_device *dev, struct sk_buff *skb)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int up = 0;
if (!netdev_get_num_tc(dev))
goto return_txq;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
up = mlx5e_get_dscp_up(priv, skb);
else
#endif
if (skb_vlan_tag_present(skb))
up = skb_vlan_tag_get_prio(skb);
return_txq:
return priv->port_ptp_tc2realtxq[up];
}
static int mlx5e_select_htb_queue(struct mlx5e_priv *priv, struct sk_buff *skb,
u16 htb_maj_id)
{
u16 classid;
if ((TC_H_MAJ(skb->priority) >> 16) == htb_maj_id)
classid = TC_H_MIN(skb->priority);
else
classid = READ_ONCE(priv->htb.defcls);
if (!classid)
return 0;
return mlx5e_get_txq_by_classid(priv, classid);
}
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int num_tc_x_num_ch;
int txq_ix;
int up = 0;
int ch_ix;
/* Sync with mlx5e_update_num_tc_x_num_ch - avoid refetching. */
num_tc_x_num_ch = READ_ONCE(priv->num_tc_x_num_ch);
if (unlikely(dev->real_num_tx_queues > num_tc_x_num_ch)) {
struct mlx5e_ptp *ptp_channel;
/* Order maj_id before defcls - pairs with mlx5e_htb_root_add. */
u16 htb_maj_id = smp_load_acquire(&priv->htb.maj_id);
if (unlikely(htb_maj_id)) {
txq_ix = mlx5e_select_htb_queue(priv, skb, htb_maj_id);
if (txq_ix > 0)
return txq_ix;
}
ptp_channel = READ_ONCE(priv->channels.ptp);
if (unlikely(ptp_channel &&
test_bit(MLX5E_PTP_STATE_TX, ptp_channel->state) &&
mlx5e_use_ptpsq(skb)))
return mlx5e_select_ptpsq(dev, skb);
txq_ix = netdev_pick_tx(dev, skb, NULL);
/* Fix netdev_pick_tx() not to choose ptp_channel and HTB txqs.
* If they are selected, switch to regular queues.
* Driver to select these queues only at mlx5e_select_ptpsq()
* and mlx5e_select_htb_queue().
*/
if (unlikely(txq_ix >= num_tc_x_num_ch))
txq_ix %= num_tc_x_num_ch;
} else {
txq_ix = netdev_pick_tx(dev, skb, NULL);
}
if (!netdev_get_num_tc(dev))
return txq_ix;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
up = mlx5e_get_dscp_up(priv, skb);
else
#endif
if (skb_vlan_tag_present(skb))
up = skb_vlan_tag_get_prio(skb);
/* Normalize any picked txq_ix to [0, num_channels),
* So we can return a txq_ix that matches the channel and
* packet UP.
*/
ch_ix = priv->txq2sq[txq_ix]->ch_ix;
return priv->channel_tc2realtxq[ch_ix][up];
}
drivers/net/ethernet/mellanox/mlx5/core/en/selq.h
View file @ 6b23f6ab
......@@ -16,6 +16,8 @@ struct mlx5e_selq {
};
struct mlx5e_params;
struct net_device;
struct sk_buff;
int mlx5e_selq_init(struct mlx5e_selq *selq, struct mutex *state_lock);
void mlx5e_selq_cleanup(struct mlx5e_selq *selq);
......@@ -23,4 +25,7 @@ void mlx5e_selq_prepare(struct mlx5e_selq *selq, struct mlx5e_params *params, bo
void mlx5e_selq_apply(struct mlx5e_selq *selq);
void mlx5e_selq_cancel(struct mlx5e_selq *selq);
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev);
#endif /* __MLX5_EN_SELQ_H__ */
drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
View file @ 6b23f6ab
......@@ -55,8 +55,6 @@ void mlx5e_free_rx_descs(struct mlx5e_rq *rq);
void mlx5e_free_rx_in_progress_descs(struct mlx5e_rq *rq);
/* TX */
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev);
netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
......
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View file @ 6b23f6ab
......@@ -53,117 +53,6 @@ static void mlx5e_dma_unmap_wqe_err(struct mlx5e_txqsq *sq, u8 num_dma)
}
}
#ifdef CONFIG_MLX5_CORE_EN_DCB
static inline int mlx5e_get_dscp_up(struct mlx5e_priv *priv, struct sk_buff *skb)
{
int dscp_cp = 0;
if (skb->protocol == htons(ETH_P_IP))
dscp_cp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
else if (skb->protocol == htons(ETH_P_IPV6))
dscp_cp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
return priv->dcbx_dp.dscp2prio[dscp_cp];
}
#endif
static u16 mlx5e_select_ptpsq(struct net_device *dev, struct sk_buff *skb)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int up = 0;
if (!netdev_get_num_tc(dev))
goto return_txq;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
up = mlx5e_get_dscp_up(priv, skb);
else
#endif
if (skb_vlan_tag_present(skb))
up = skb_vlan_tag_get_prio(skb);
return_txq:
return priv->port_ptp_tc2realtxq[up];
}
static int mlx5e_select_htb_queue(struct mlx5e_priv *priv, struct sk_buff *skb,
u16 htb_maj_id)
{
u16 classid;
if ((TC_H_MAJ(skb->priority) >> 16) == htb_maj_id)
classid = TC_H_MIN(skb->priority);
else
classid = READ_ONCE(priv->htb.defcls);
if (!classid)
return 0;
return mlx5e_get_txq_by_classid(priv, classid);
}
u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
struct net_device *sb_dev)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int num_tc_x_num_ch;
int txq_ix;
int up = 0;
int ch_ix;
/* Sync with mlx5e_update_num_tc_x_num_ch - avoid refetching. */
num_tc_x_num_ch = READ_ONCE(priv->num_tc_x_num_ch);
if (unlikely(dev->real_num_tx_queues > num_tc_x_num_ch)) {
struct mlx5e_ptp *ptp_channel;
/* Order maj_id before defcls - pairs with mlx5e_htb_root_add. */
u16 htb_maj_id = smp_load_acquire(&priv->htb.maj_id);
if (unlikely(htb_maj_id)) {
txq_ix = mlx5e_select_htb_queue(priv, skb, htb_maj_id);
if (txq_ix > 0)
return txq_ix;
}
ptp_channel = READ_ONCE(priv->channels.ptp);
if (unlikely(ptp_channel &&
test_bit(MLX5E_PTP_STATE_TX, ptp_channel->state) &&
mlx5e_use_ptpsq(skb)))
return mlx5e_select_ptpsq(dev, skb);
txq_ix = netdev_pick_tx(dev, skb, NULL);
/* Fix netdev_pick_tx() not to choose ptp_channel and HTB txqs.
* If they are selected, switch to regular queues.
* Driver to select these queues only at mlx5e_select_ptpsq()
* and mlx5e_select_htb_queue().
*/
if (unlikely(txq_ix >= num_tc_x_num_ch))
txq_ix %= num_tc_x_num_ch;
} else {
txq_ix = netdev_pick_tx(dev, skb, NULL);
}
if (!netdev_get_num_tc(dev))
return txq_ix;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
up = mlx5e_get_dscp_up(priv, skb);
else
#endif
if (skb_vlan_tag_present(skb))
up = skb_vlan_tag_get_prio(skb);
/* Normalize any picked txq_ix to [0, num_channels),
* So we can return a txq_ix that matches the channel and
* packet UP.
*/
ch_ix = priv->txq2sq[txq_ix]->ch_ix;
return priv->channel_tc2realtxq[ch_ix][up];
}
static inline int mlx5e_skb_l2_header_offset(struct sk_buff *skb)
{
#define MLX5E_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
......
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