diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-04-12 17:03:26 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-12 13:34:21 -0700 |
| commit | f768e75130159b5444ee691bbdd201bef8e5bb24 (patch) | |
| tree | 57a3816984f197ac30a1924c67a500c1b9333f4d /drivers/net/ethernet/freescale/enetc | |
| parent | 8043edee9a344f1f2e641e53d6a03db17b29ba66 (diff) | |
enetc: mark TX timestamp type per skb
Mark TX timestamp type per skb on skb->cb[0], instead of
global variable for all skbs. This is a preparation for
one step timestamp support.
For one-step timestamping enablement, there will be both
one-step and two-step PTP messages to transfer. And a skb
queue is needed for one-step PTP messages making sure
start to send current message only after the last one
completed on hardware. (ENETC single-step register has to
be dynamically configured per message.) So, marking TX
timestamp type per skb is required.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc.c | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc.h | 11 |
2 files changed, 13 insertions, 8 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 41bfc6e623bf..6e3a5303e2bb 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -67,8 +67,7 @@ static void enetc_update_tx_ring_tail(struct enetc_bdr *tx_ring) enetc_wr_reg_hot(tx_ring->tpir, tx_ring->next_to_use); } -static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb, - int active_offloads) +static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb) { struct enetc_tx_swbd *tx_swbd; skb_frag_t *frag; @@ -101,7 +100,7 @@ static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb, count++; do_vlan = skb_vlan_tag_present(skb); - do_tstamp = (active_offloads & ENETC_F_TX_TSTAMP) && + do_tstamp = (skb->cb[0] & ENETC_F_TX_TSTAMP) && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP); tx_swbd->do_tstamp = do_tstamp; tx_swbd->check_wb = tx_swbd->do_tstamp; @@ -221,6 +220,9 @@ netdev_tx_t enetc_xmit(struct sk_buff *skb, struct net_device *ndev) struct enetc_bdr *tx_ring; int count; + /* cb[0] used for TX timestamp type */ + skb->cb[0] = priv->active_offloads & ENETC_F_TX_TSTAMP_MASK; + tx_ring = priv->tx_ring[skb->queue_mapping]; if (unlikely(skb_shinfo(skb)->nr_frags > ENETC_MAX_SKB_FRAGS)) @@ -234,7 +236,7 @@ netdev_tx_t enetc_xmit(struct sk_buff *skb, struct net_device *ndev) } enetc_lock_mdio(); - count = enetc_map_tx_buffs(tx_ring, skb, priv->active_offloads); + count = enetc_map_tx_buffs(tx_ring, skb); enetc_unlock_mdio(); if (unlikely(!count)) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h index 05474f46b0d9..96889529383e 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.h +++ b/drivers/net/ethernet/freescale/enetc/enetc.h @@ -271,12 +271,15 @@ struct psfp_cap { u32 max_psfp_meter; }; +#define ENETC_F_TX_TSTAMP_MASK 0xff /* TODO: more hardware offloads */ enum enetc_active_offloads { - ENETC_F_RX_TSTAMP = BIT(0), - ENETC_F_TX_TSTAMP = BIT(1), - ENETC_F_QBV = BIT(2), - ENETC_F_QCI = BIT(3), + /* 8 bits reserved for TX timestamp types (hwtstamp_tx_types) */ + ENETC_F_TX_TSTAMP = BIT(0), + + ENETC_F_RX_TSTAMP = BIT(8), + ENETC_F_QBV = BIT(9), + ENETC_F_QCI = BIT(10), }; /* interrupt coalescing modes */ |