diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 2ee4a2cd4780..1f79e36116a3 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -149,11 +149,21 @@ static int enetc_map_tx_buffs(struct enetc_bdr *tx_ring, struct sk_buff *skb, if (enetc_tx_csum(skb, &temp_bd)) flags |= ENETC_TXBD_FLAGS_CSUM | ENETC_TXBD_FLAGS_L4CS; + else if (tx_ring->tsd_enable) + flags |= ENETC_TXBD_FLAGS_TSE | ENETC_TXBD_FLAGS_TXSTART; /* first BD needs frm_len and offload flags set */ temp_bd.frm_len = cpu_to_le16(skb->len); temp_bd.flags = flags; + if (flags & ENETC_TXBD_FLAGS_TSE) { + u32 temp; + + temp = (skb->skb_mstamp_ns >> 5 & ENETC_TXBD_TXSTART_MASK) + | (flags << ENETC_TXBD_FLAGS_OFFSET); + temp_bd.txstart = cpu_to_le32(temp); + } + if (flags & ENETC_TXBD_FLAGS_EX) { u8 e_flags = 0; *txbd = temp_bd; @@ -1505,6 +1515,8 @@ int enetc_setup_tc(struct net_device *ndev, enum tc_setup_type type, return enetc_setup_tc_taprio(ndev, type_data); case TC_SETUP_QDISC_CBS: return enetc_setup_tc_cbs(ndev, type_data); + case TC_SETUP_QDISC_ETF: + return enetc_setup_tc_txtime(ndev, type_data); default: return -EOPNOTSUPP; } diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h index 7ee0da6d0015..dd4a227ffc7a 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.h +++ b/drivers/net/ethernet/freescale/enetc/enetc.h @@ -72,6 +72,7 @@ struct enetc_bdr { struct enetc_ring_stats stats; dma_addr_t bd_dma_base; + u8 tsd_enable; /* Time specific departure */ } ____cacheline_aligned_in_smp; static inline void enetc_bdr_idx_inc(struct enetc_bdr *bdr, int *i) @@ -256,8 +257,10 @@ int enetc_send_cmd(struct enetc_si *si, struct enetc_cbd *cbd); int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data); void enetc_sched_speed_set(struct net_device *ndev); int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data); +int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data); #else #define enetc_setup_tc_taprio(ndev, type_data) -EOPNOTSUPP #define enetc_sched_speed_set(ndev) (void)0 #define enetc_setup_tc_cbs(ndev, type_data) -EOPNOTSUPP +#define enetc_setup_tc_txtime(ndev, type_data) -EOPNOTSUPP #endif diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h index 51f543ef37a8..8375cd886dba 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h @@ -358,6 +358,7 @@ union enetc_tx_bd { u8 l4_csoff; u8 flags; }; /* default layout */ + __le32 txstart; __le32 lstatus; }; }; @@ -378,11 +379,14 @@ union enetc_tx_bd { }; #define ENETC_TXBD_FLAGS_L4CS BIT(0) +#define ENETC_TXBD_FLAGS_TSE BIT(1) #define ENETC_TXBD_FLAGS_W BIT(2) #define ENETC_TXBD_FLAGS_CSUM BIT(3) +#define ENETC_TXBD_FLAGS_TXSTART BIT(4) #define ENETC_TXBD_FLAGS_EX BIT(6) #define ENETC_TXBD_FLAGS_F BIT(7) - +#define ENETC_TXBD_TXSTART_MASK GENMASK(24, 0) +#define ENETC_TXBD_FLAGS_OFFSET 24 static inline void enetc_clear_tx_bd(union enetc_tx_bd *txbd) { memset(txbd, 0, sizeof(*txbd)); @@ -615,3 +619,7 @@ struct enetc_cbd { /* Port time gating capability register */ #define ENETC_QBV_PTGCAPR_OFFSET 0x11a08 #define ENETC_QBV_MAX_GCL_LEN_MASK GENMASK(15, 0) + +/* Port time specific departure */ +#define ENETC_PTCTSDR(n) (0x1210 + 4 * (n)) +#define ENETC_TSDE BIT(31) diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c index 9190ffc9f6b2..e910aaf0f5ec 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c @@ -156,6 +156,11 @@ int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data) int err; int i; + /* TSD and Qbv are mutually exclusive in hardware */ + for (i = 0; i < priv->num_tx_rings; i++) + if (priv->tx_ring[i]->tsd_enable) + return -EBUSY; + for (i = 0; i < priv->num_tx_rings; i++) enetc_set_bdr_prio(&priv->si->hw, priv->tx_ring[i]->index, @@ -297,3 +302,33 @@ int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data) return 0; } + +int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct tc_etf_qopt_offload *qopt = type_data; + u8 tc_nums = netdev_get_num_tc(ndev); + int tc; + + if (!tc_nums) + return -EOPNOTSUPP; + + tc = qopt->queue; + + if (tc < 0 || tc > priv->num_tx_rings) + return -EINVAL; + + /* Do not support TXSTART and TX CSUM offload simutaniously */ + if (ndev->features & NETIF_F_CSUM_MASK) + return -EBUSY; + + /* TSD and Qbv are mutually exclusive in hardware */ + if (enetc_rd(&priv->si->hw, ENETC_QBV_PTGCR_OFFSET) & ENETC_QBV_TGE) + return -EBUSY; + + priv->tx_ring[tc]->tsd_enable = qopt->enable; + enetc_port_wr(&priv->si->hw, ENETC_PTCTSDR(tc), + qopt->enable ? ENETC_TSDE : 0); + + return 0; +}