diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac')
4 files changed, 52 insertions, 22 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c index 489ef146201e..6a9c954492f2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c +++ b/drivers/net/ethernet/stmicro/stmmac/altr_tse_pcs.c @@ -37,6 +37,7 @@ #define TSE_PCS_CONTROL_AN_EN_MASK BIT(12) #define TSE_PCS_CONTROL_REG 0x00 #define TSE_PCS_CONTROL_RESTART_AN_MASK BIT(9) +#define TSE_PCS_CTRL_AUTONEG_SGMII 0x1140 #define TSE_PCS_IF_MODE_REG 0x28 #define TSE_PCS_LINK_TIMER_0_REG 0x24 #define TSE_PCS_LINK_TIMER_1_REG 0x26 @@ -65,6 +66,7 @@ #define TSE_PCS_SW_RESET_TIMEOUT 100 #define TSE_PCS_USE_SGMII_AN_MASK BIT(1) #define TSE_PCS_USE_SGMII_ENA BIT(0) +#define TSE_PCS_IF_USE_SGMII 0x03 #define SGMII_ADAPTER_CTRL_REG 0x00 #define SGMII_ADAPTER_DISABLE 0x0001 @@ -101,7 +103,9 @@ int tse_pcs_init(void __iomem *base, struct tse_pcs *pcs) { int ret = 0; - writew(TSE_PCS_USE_SGMII_ENA, base + TSE_PCS_IF_MODE_REG); + writew(TSE_PCS_IF_USE_SGMII, base + TSE_PCS_IF_MODE_REG); + + writew(TSE_PCS_CTRL_AUTONEG_SGMII, base + TSE_PCS_CONTROL_REG); writew(TSE_PCS_SGMII_LINK_TIMER_0, base + TSE_PCS_LINK_TIMER_0_REG); writew(TSE_PCS_SGMII_LINK_TIMER_1, base + TSE_PCS_LINK_TIMER_1_REG); diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c index aa6476439aee..e0ef02f9503b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c @@ -214,13 +214,13 @@ static int dwmac4_wrback_get_tx_timestamp_status(struct dma_desc *p) { /* Context type from W/B descriptor must be zero */ if (le32_to_cpu(p->des3) & TDES3_CONTEXT_TYPE) - return -EINVAL; + return 0; /* Tx Timestamp Status is 1 so des0 and des1'll have valid values */ if (le32_to_cpu(p->des3) & TDES3_TIMESTAMP_STATUS) - return 0; + return 1; - return 1; + return 0; } static inline u64 dwmac4_get_timestamp(void *desc, u32 ats) @@ -282,7 +282,10 @@ static int dwmac4_wrback_get_rx_timestamp_status(void *desc, u32 ats) } } exit: - return ret; + if (likely(ret == 0)) + return 1; + + return 0; } static void dwmac4_rd_init_rx_desc(struct dma_desc *p, int disable_rx_ic, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index cd8c60132390..6e4cbc6ce0ef 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -434,14 +434,14 @@ static void stmmac_get_tx_hwtstamp(struct stmmac_priv *priv, return; /* check tx tstamp status */ - if (!priv->hw->desc->get_tx_timestamp_status(p)) { + if (priv->hw->desc->get_tx_timestamp_status(p)) { /* get the valid tstamp */ ns = priv->hw->desc->get_timestamp(p, priv->adv_ts); memset(&shhwtstamp, 0, sizeof(struct skb_shared_hwtstamps)); shhwtstamp.hwtstamp = ns_to_ktime(ns); - netdev_info(priv->dev, "get valid TX hw timestamp %llu\n", ns); + netdev_dbg(priv->dev, "get valid TX hw timestamp %llu\n", ns); /* pass tstamp to stack */ skb_tstamp_tx(skb, &shhwtstamp); } @@ -468,19 +468,19 @@ static void stmmac_get_rx_hwtstamp(struct stmmac_priv *priv, struct dma_desc *p, return; /* Check if timestamp is available */ - if (!priv->hw->desc->get_rx_timestamp_status(p, priv->adv_ts)) { + if (priv->hw->desc->get_rx_timestamp_status(p, priv->adv_ts)) { /* For GMAC4, the valid timestamp is from CTX next desc. */ if (priv->plat->has_gmac4) ns = priv->hw->desc->get_timestamp(np, priv->adv_ts); else ns = priv->hw->desc->get_timestamp(p, priv->adv_ts); - netdev_info(priv->dev, "get valid RX hw timestamp %llu\n", ns); + netdev_dbg(priv->dev, "get valid RX hw timestamp %llu\n", ns); shhwtstamp = skb_hwtstamps(skb); memset(shhwtstamp, 0, sizeof(struct skb_shared_hwtstamps)); shhwtstamp->hwtstamp = ns_to_ktime(ns); } else { - netdev_err(priv->dev, "cannot get RX hw timestamp\n"); + netdev_dbg(priv->dev, "cannot get RX hw timestamp\n"); } } @@ -546,7 +546,10 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) /* PTP v1, UDP, any kind of event packet */ config.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; /* take time stamp for all event messages */ - snap_type_sel = PTP_TCR_SNAPTYPSEL_1; + if (priv->plat->has_gmac4) + snap_type_sel = PTP_GMAC4_TCR_SNAPTYPSEL_1; + else + snap_type_sel = PTP_TCR_SNAPTYPSEL_1; ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA; ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA; @@ -578,7 +581,10 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) config.rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT; ptp_v2 = PTP_TCR_TSVER2ENA; /* take time stamp for all event messages */ - snap_type_sel = PTP_TCR_SNAPTYPSEL_1; + if (priv->plat->has_gmac4) + snap_type_sel = PTP_GMAC4_TCR_SNAPTYPSEL_1; + else + snap_type_sel = PTP_TCR_SNAPTYPSEL_1; ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA; ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA; @@ -612,7 +618,10 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; ptp_v2 = PTP_TCR_TSVER2ENA; /* take time stamp for all event messages */ - snap_type_sel = PTP_TCR_SNAPTYPSEL_1; + if (priv->plat->has_gmac4) + snap_type_sel = PTP_GMAC4_TCR_SNAPTYPSEL_1; + else + snap_type_sel = PTP_TCR_SNAPTYPSEL_1; ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA; ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA; @@ -1208,7 +1217,7 @@ static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags) u32 rx_count = priv->plat->rx_queues_to_use; unsigned int bfsize = 0; int ret = -ENOMEM; - u32 queue; + int queue; int i; if (priv->hw->mode->set_16kib_bfsize) @@ -2724,7 +2733,7 @@ static void stmmac_tso_allocator(struct stmmac_priv *priv, unsigned int des, priv->hw->desc->prepare_tso_tx_desc(desc, 0, buff_size, 0, 1, - (last_segment) && (buff_size < TSO_MAX_BUFF_SIZE), + (last_segment) && (tmp_len <= TSO_MAX_BUFF_SIZE), 0, 0); tmp_len -= TSO_MAX_BUFF_SIZE; @@ -2822,7 +2831,6 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) tx_q->tx_skbuff_dma[first_entry].buf = des; tx_q->tx_skbuff_dma[first_entry].len = skb_headlen(skb); - tx_q->tx_skbuff[first_entry] = skb; first->des0 = cpu_to_le32(des); @@ -2856,6 +2864,14 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev) tx_q->tx_skbuff_dma[tx_q->cur_tx].last_segment = true; + /* Only the last descriptor gets to point to the skb. */ + tx_q->tx_skbuff[tx_q->cur_tx] = skb; + + /* We've used all descriptors we need for this skb, however, + * advance cur_tx so that it references a fresh descriptor. + * ndo_start_xmit will fill this descriptor the next time it's + * called and stmmac_tx_clean may clean up to this descriptor. + */ tx_q->cur_tx = STMMAC_GET_ENTRY(tx_q->cur_tx, DMA_TX_SIZE); if (unlikely(stmmac_tx_avail(priv, queue) <= (MAX_SKB_FRAGS + 1))) { @@ -2947,7 +2963,8 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) int i, csum_insertion = 0, is_jumbo = 0; u32 queue = skb_get_queue_mapping(skb); int nfrags = skb_shinfo(skb)->nr_frags; - unsigned int entry, first_entry; + int entry; + unsigned int first_entry; struct dma_desc *desc, *first; struct stmmac_tx_queue *tx_q; unsigned int enh_desc; @@ -2988,8 +3005,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) first = desc; - tx_q->tx_skbuff[first_entry] = skb; - enh_desc = priv->plat->enh_desc; /* To program the descriptors according to the size of the frame */ if (enh_desc) @@ -3037,8 +3052,15 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) skb->len); } - entry = STMMAC_GET_ENTRY(entry, DMA_TX_SIZE); + /* Only the last descriptor gets to point to the skb. */ + tx_q->tx_skbuff[entry] = skb; + /* We've used all descriptors we need for this skb, however, + * advance cur_tx so that it references a fresh descriptor. + * ndo_start_xmit will fill this descriptor the next time it's + * called and stmmac_tx_clean may clean up to this descriptor. + */ + entry = STMMAC_GET_ENTRY(entry, DMA_TX_SIZE); tx_q->cur_tx = entry; if (netif_msg_pktdata(priv)) { @@ -3725,7 +3747,7 @@ static void sysfs_display_ring(void *head, int size, int extend_desc, ep++; } else { seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n", - i, (unsigned int)virt_to_phys(ep), + i, (unsigned int)virt_to_phys(p), le32_to_cpu(p->des0), le32_to_cpu(p->des1), le32_to_cpu(p->des2), le32_to_cpu(p->des3)); p++; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h index 48fb72fc423c..f4b31d69f60e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.h @@ -59,7 +59,8 @@ /* Enable Snapshot for Messages Relevant to Master */ #define PTP_TCR_TSMSTRENA BIT(15) /* Select PTP packets for Taking Snapshots */ -#define PTP_TCR_SNAPTYPSEL_1 GENMASK(17, 16) +#define PTP_TCR_SNAPTYPSEL_1 BIT(16) +#define PTP_GMAC4_TCR_SNAPTYPSEL_1 GENMASK(17, 16) /* Enable MAC address for PTP Frame Filtering */ #define PTP_TCR_TSENMACADDR BIT(18) |