diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
-rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 162 |
1 files changed, 137 insertions, 25 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 37e64283f910..25519952f754 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2431,6 +2431,46 @@ static void stmmac_dma_operation_mode(struct stmmac_priv *priv) } } +static void stmmac_xsk_request_timestamp(void *_priv) +{ + struct stmmac_metadata_request *meta_req = _priv; + + stmmac_enable_tx_timestamp(meta_req->priv, meta_req->tx_desc); + *meta_req->set_ic = true; +} + +static u64 stmmac_xsk_fill_timestamp(void *_priv) +{ + struct stmmac_xsk_tx_complete *tx_compl = _priv; + struct stmmac_priv *priv = tx_compl->priv; + struct dma_desc *desc = tx_compl->desc; + bool found = false; + u64 ns = 0; + + if (!priv->hwts_tx_en) + return 0; + + /* check tx tstamp status */ + if (stmmac_get_tx_timestamp_status(priv, desc)) { + stmmac_get_timestamp(priv, desc, priv->adv_ts, &ns); + found = true; + } else if (!stmmac_get_mac_tx_timestamp(priv, priv->hw, &ns)) { + found = true; + } + + if (found) { + ns -= priv->plat->cdc_error_adj; + return ns_to_ktime(ns); + } + + return 0; +} + +static const struct xsk_tx_metadata_ops stmmac_xsk_tx_metadata_ops = { + .tmo_request_timestamp = stmmac_xsk_request_timestamp, + .tmo_fill_timestamp = stmmac_xsk_fill_timestamp, +}; + static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) { struct netdev_queue *nq = netdev_get_tx_queue(priv->dev, queue); @@ -2450,6 +2490,8 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) budget = min(budget, stmmac_tx_avail(priv, queue)); while (budget-- > 0) { + struct stmmac_metadata_request meta_req; + struct xsk_tx_metadata *meta = NULL; dma_addr_t dma_addr; bool set_ic; @@ -2473,6 +2515,7 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) tx_desc = tx_q->dma_tx + entry; dma_addr = xsk_buff_raw_get_dma(pool, xdp_desc.addr); + meta = xsk_buff_get_metadata(pool, xdp_desc.addr); xsk_buff_raw_dma_sync_for_device(pool, dma_addr, xdp_desc.len); tx_q->tx_skbuff_dma[entry].buf_type = STMMAC_TXBUF_T_XSK_TX; @@ -2500,6 +2543,11 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) else set_ic = false; + meta_req.priv = priv; + meta_req.tx_desc = tx_desc; + meta_req.set_ic = &set_ic; + xsk_tx_metadata_request(meta, &stmmac_xsk_tx_metadata_ops, + &meta_req); if (set_ic) { tx_q->tx_count_frames = 0; stmmac_set_tx_ic(priv, tx_desc); @@ -2512,6 +2560,9 @@ static bool stmmac_xdp_xmit_zc(struct stmmac_priv *priv, u32 queue, u32 budget) stmmac_enable_dma_transmission(priv, priv->ioaddr); + xsk_tx_metadata_to_compl(meta, + &tx_q->tx_skbuff_dma[entry].xsk_meta); + tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, priv->dma_conf.dma_tx_size); entry = tx_q->cur_tx; } @@ -2621,8 +2672,18 @@ static int stmmac_tx_clean(struct stmmac_priv *priv, int budget, u32 queue, } else { tx_packets++; } - if (skb) + if (skb) { stmmac_get_tx_hwtstamp(priv, p, skb); + } else { + struct stmmac_xsk_tx_complete tx_compl = { + .priv = priv, + .desc = p, + }; + + xsk_tx_metadata_complete(&tx_q->tx_skbuff_dma[entry].xsk_meta, + &stmmac_xsk_tx_metadata_ops, + &tx_compl); + } } if (likely(tx_q->tx_skbuff_dma[entry].buf && @@ -3470,6 +3531,8 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register) /* Start the ball rolling... */ stmmac_start_all_dma(priv); + stmmac_set_hw_vlan_mode(priv, priv->hw); + if (priv->dma_cap.fpesel) { stmmac_fpe_start_wq(priv); @@ -3565,6 +3628,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) /* Request the Wake IRQ in case of another line * is used for WoL */ + priv->wol_irq_disabled = true; if (priv->wol_irq > 0 && priv->wol_irq != dev->irq) { int_name = priv->int_name_wol; sprintf(int_name, "%s:%s", dev->name, "wol"); @@ -3868,6 +3932,9 @@ static int __stmmac_open(struct net_device *dev, priv->rx_copybreak = STMMAC_RX_COPYBREAK; buf_sz = dma_conf->dma_buf_sz; + for (int i = 0; i < MTL_MAX_TX_QUEUES; i++) + if (priv->dma_conf.tx_queue[i].tbs & STMMAC_TBS_EN) + dma_conf->tx_queue[i].tbs = priv->dma_conf.tx_queue[i].tbs; memcpy(&priv->dma_conf, dma_conf, sizeof(*dma_conf)); stmmac_reset_queues_param(priv); @@ -4372,6 +4439,28 @@ dma_map_err: } /** + * stmmac_has_ip_ethertype() - Check if packet has IP ethertype + * @skb: socket buffer to check + * + * Check if a packet has an ethertype that will trigger the IP header checks + * and IP/TCP checksum engine of the stmmac core. + * + * Return: true if the ethertype can trigger the checksum engine, false + * otherwise + */ +static bool stmmac_has_ip_ethertype(struct sk_buff *skb) +{ + int depth = 0; + __be16 proto; + + proto = __vlan_get_protocol(skb, eth_header_parse_protocol(skb), + &depth); + + return (depth <= ETH_HLEN) && + (proto == htons(ETH_P_IP) || proto == htons(ETH_P_IPV6)); +} + +/** * stmmac_xmit - Tx entry point of the driver * @skb : the socket buffer * @dev : device pointer @@ -4435,9 +4524,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) /* DWMAC IPs can be synthesized to support tx coe only for a few tx * queues. In that case, checksum offloading for those queues that don't * support tx coe needs to fallback to software checksum calculation. + * + * Packets that won't trigger the COE e.g. most DSA-tagged packets will + * also have to be checksummed in software. */ if (csum_insertion && - priv->plat->tx_queues_cfg[queue].coe_unsupported) { + (priv->plat->tx_queues_cfg[queue].coe_unsupported || + !stmmac_has_ip_ethertype(skb))) { if (unlikely(skb_checksum_help(skb))) goto dma_map_err; csum_insertion = !csum_insertion; @@ -4994,10 +5087,15 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv *priv, u32 queue, } stmmac_get_rx_hwtstamp(priv, p, np, skb); - stmmac_rx_vlan(priv->dev, skb); + if (priv->hw->hw_vlan_en) + /* MAC level stripping. */ + stmmac_rx_hw_vlan(priv, priv->hw, p, skb); + else + /* Driver level stripping. */ + stmmac_rx_vlan(priv->dev, skb); skb->protocol = eth_type_trans(skb, priv->dev); - if (unlikely(!coe)) + if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb)) skb_checksum_none_assert(skb); else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -5510,10 +5608,17 @@ drain_data: /* Got entire packet into SKB. Finish it. */ stmmac_get_rx_hwtstamp(priv, p, np, skb); - stmmac_rx_vlan(priv->dev, skb); + + if (priv->hw->hw_vlan_en) + /* MAC level stripping. */ + stmmac_rx_hw_vlan(priv, priv->hw, p, skb); + else + /* Driver level stripping. */ + stmmac_rx_vlan(priv->dev, skb); + skb->protocol = eth_type_trans(skb, priv->dev); - if (unlikely(!coe)) + if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb)) skb_checksum_none_assert(skb); else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -5819,6 +5924,13 @@ static int stmmac_set_features(struct net_device *netdev, stmmac_enable_sph(priv, priv->ioaddr, sph_en, chan); } + if (features & NETIF_F_HW_VLAN_CTAG_RX) + priv->hw->hw_vlan_en = true; + else + priv->hw->hw_vlan_en = false; + + stmmac_set_hw_vlan_mode(priv, priv->hw); + return 0; } @@ -5880,7 +5992,7 @@ static void stmmac_common_interrupt(struct stmmac_priv *priv) pm_wakeup_event(priv->device, 0); if (priv->dma_cap.estsel) - stmmac_est_irq_status(priv, priv->ioaddr, priv->dev, + stmmac_est_irq_status(priv, priv, priv->dev, &priv->xstats, tx_cnt); if (priv->dma_cap.fpesel) { @@ -6182,30 +6294,23 @@ static struct dentry *stmmac_fs_dir; static void sysfs_display_ring(void *head, int size, int extend_desc, struct seq_file *seq, dma_addr_t dma_phy_addr) { - int i; struct dma_extended_desc *ep = (struct dma_extended_desc *)head; struct dma_desc *p = (struct dma_desc *)head; + unsigned int desc_size; dma_addr_t dma_addr; + int i; + desc_size = extend_desc ? sizeof(*ep) : sizeof(*p); for (i = 0; i < size; i++) { - if (extend_desc) { - dma_addr = dma_phy_addr + i * sizeof(*ep); - seq_printf(seq, "%d [%pad]: 0x%x 0x%x 0x%x 0x%x\n", - i, &dma_addr, - le32_to_cpu(ep->basic.des0), - le32_to_cpu(ep->basic.des1), - le32_to_cpu(ep->basic.des2), - le32_to_cpu(ep->basic.des3)); - ep++; - } else { - dma_addr = dma_phy_addr + i * sizeof(*p); - seq_printf(seq, "%d [%pad]: 0x%x 0x%x 0x%x 0x%x\n", - i, &dma_addr, - le32_to_cpu(p->des0), le32_to_cpu(p->des1), - le32_to_cpu(p->des2), le32_to_cpu(p->des3)); + dma_addr = dma_phy_addr + i * desc_size; + seq_printf(seq, "%d [%pad]: 0x%x 0x%x 0x%x 0x%x\n", + i, &dma_addr, + le32_to_cpu(p->des0), le32_to_cpu(p->des1), + le32_to_cpu(p->des2), le32_to_cpu(p->des3)); + if (extend_desc) + p = &(++ep)->basic; + else p++; - } - seq_printf(seq, "\n"); } } @@ -7440,6 +7545,9 @@ int stmmac_dvr_probe(struct device *device, dev_err(priv->device, "unable to bring out of ahb reset: %pe\n", ERR_PTR(ret)); + /* Wait a bit for the reset to take effect */ + udelay(10); + /* Init MAC and get the capabilities */ ret = stmmac_hw_init(priv); if (ret) @@ -7455,6 +7563,7 @@ int stmmac_dvr_probe(struct device *device, ndev->netdev_ops = &stmmac_netdev_ops; ndev->xdp_metadata_ops = &stmmac_xdp_metadata_ops; + ndev->xsk_tx_metadata_ops = &stmmac_xsk_tx_metadata_ops; ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; @@ -7521,6 +7630,9 @@ int stmmac_dvr_probe(struct device *device, #ifdef STMMAC_VLAN_TAG_USED /* Both mac100 and gmac support receive VLAN tag detection */ ndev->features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX; + ndev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX; + priv->hw->hw_vlan_en = true; + if (priv->dma_cap.vlhash) { ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; ndev->features |= NETIF_F_HW_VLAN_STAG_FILTER; |