diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-drv.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 729 |
1 files changed, 619 insertions, 110 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index cfe3d93b5f5..dc84f7193c2 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -117,10 +117,11 @@ #include <linux/spinlock.h> #include <linux/tcp.h> #include <linux/if_vlan.h> -#include <linux/phy.h> #include <net/busy_poll.h> #include <linux/clk.h> #include <linux/if_ether.h> +#include <linux/net_tstamp.h> +#include <linux/phy.h> #include "xgbe.h" #include "xgbe-common.h" @@ -144,9 +145,10 @@ static int xgbe_calc_rx_buf_size(struct net_device *netdev, unsigned int mtu) } rx_buf_size = mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; - if (rx_buf_size < RX_MIN_BUF_SIZE) - rx_buf_size = RX_MIN_BUF_SIZE; - rx_buf_size = (rx_buf_size + RX_BUF_ALIGN - 1) & ~(RX_BUF_ALIGN - 1); + if (rx_buf_size < XGBE_RX_MIN_BUF_SIZE) + rx_buf_size = XGBE_RX_MIN_BUF_SIZE; + rx_buf_size = (rx_buf_size + XGBE_RX_BUF_ALIGN - 1) & + ~(XGBE_RX_BUF_ALIGN - 1); return rx_buf_size; } @@ -155,16 +157,21 @@ static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata) { struct xgbe_hw_if *hw_if = &pdata->hw_if; struct xgbe_channel *channel; + enum xgbe_int int_id; unsigned int i; channel = pdata->channel; for (i = 0; i < pdata->channel_count; i++, channel++) { - if (channel->tx_ring) - hw_if->enable_int(channel, - XGMAC_INT_DMA_CH_SR_TI); - if (channel->rx_ring) - hw_if->enable_int(channel, - XGMAC_INT_DMA_CH_SR_RI); + if (channel->tx_ring && channel->rx_ring) + int_id = XGMAC_INT_DMA_CH_SR_TI_RI; + else if (channel->tx_ring) + int_id = XGMAC_INT_DMA_CH_SR_TI; + else if (channel->rx_ring) + int_id = XGMAC_INT_DMA_CH_SR_RI; + else + continue; + + hw_if->enable_int(channel, int_id); } } @@ -172,16 +179,21 @@ static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata) { struct xgbe_hw_if *hw_if = &pdata->hw_if; struct xgbe_channel *channel; + enum xgbe_int int_id; unsigned int i; channel = pdata->channel; for (i = 0; i < pdata->channel_count; i++, channel++) { - if (channel->tx_ring) - hw_if->disable_int(channel, - XGMAC_INT_DMA_CH_SR_TI); - if (channel->rx_ring) - hw_if->disable_int(channel, - XGMAC_INT_DMA_CH_SR_RI); + if (channel->tx_ring && channel->rx_ring) + int_id = XGMAC_INT_DMA_CH_SR_TI_RI; + else if (channel->tx_ring) + int_id = XGMAC_INT_DMA_CH_SR_TI; + else if (channel->rx_ring) + int_id = XGMAC_INT_DMA_CH_SR_RI; + else + continue; + + hw_if->disable_int(channel, int_id); } } @@ -191,7 +203,7 @@ static irqreturn_t xgbe_isr(int irq, void *data) struct xgbe_hw_if *hw_if = &pdata->hw_if; struct xgbe_channel *channel; unsigned int dma_isr, dma_ch_isr; - unsigned int mac_isr; + unsigned int mac_isr, mac_tssr; unsigned int i; /* The DMA interrupt status register also reports MAC and MTL @@ -244,6 +256,17 @@ static irqreturn_t xgbe_isr(int irq, void *data) if (XGMAC_GET_BITS(mac_isr, MAC_ISR, MMCRXIS)) hw_if->rx_mmc_int(pdata); + + if (XGMAC_GET_BITS(mac_isr, MAC_ISR, TSIS)) { + mac_tssr = XGMAC_IOREAD(pdata, MAC_TSSR); + + if (XGMAC_GET_BITS(mac_tssr, MAC_TSSR, TXTSC)) { + /* Read Tx Timestamp to clear interrupt */ + pdata->tx_tstamp = + hw_if->get_tx_tstamp(pdata); + schedule_work(&pdata->tx_tstamp_work); + } + } } DBGPR(" DMA_ISR = %08x\n", XGMAC_IOREAD(pdata, DMA_ISR)); @@ -364,6 +387,7 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata) hw_feat->sph = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, SPHEN); hw_feat->tso = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, TSOEN); hw_feat->dma_debug = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, DBGMEMA); + hw_feat->tc_cnt = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, NUMTC); hw_feat->hash_table_size = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, HASHTBLSZ); hw_feat->l3l4_filter_num = XGMAC_GET_BITS(mac_hfr1, MAC_HWF1R, @@ -377,6 +401,21 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata) hw_feat->pps_out_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, PPSOUTNUM); hw_feat->aux_snap_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, AUXSNAPNUM); + /* Translate the Hash Table size into actual number */ + switch (hw_feat->hash_table_size) { + case 0: + break; + case 1: + hw_feat->hash_table_size = 64; + break; + case 2: + hw_feat->hash_table_size = 128; + break; + case 3: + hw_feat->hash_table_size = 256; + break; + } + /* The Queue and Channel counts are zero based so increment them * to get the actual number */ @@ -396,9 +435,12 @@ static void xgbe_napi_enable(struct xgbe_prv_data *pdata, unsigned int add) napi_enable(&pdata->napi); } -static void xgbe_napi_disable(struct xgbe_prv_data *pdata) +static void xgbe_napi_disable(struct xgbe_prv_data *pdata, unsigned int del) { napi_disable(&pdata->napi); + + if (del) + netif_napi_del(&pdata->napi); } void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata) @@ -446,7 +488,7 @@ static void xgbe_free_tx_skbuff(struct xgbe_prv_data *pdata) break; for (j = 0; j < ring->rdesc_count; j++) { - rdata = GET_DESC_DATA(ring, j); + rdata = XGBE_GET_DESC_DATA(ring, j); desc_if->unmap_skb(pdata, rdata); } } @@ -471,7 +513,7 @@ static void xgbe_free_rx_skbuff(struct xgbe_prv_data *pdata) break; for (j = 0; j < ring->rdesc_count; j++) { - rdata = GET_DESC_DATA(ring, j); + rdata = XGBE_GET_DESC_DATA(ring, j); desc_if->unmap_skb(pdata, rdata); } } @@ -479,6 +521,114 @@ static void xgbe_free_rx_skbuff(struct xgbe_prv_data *pdata) DBGPR("<--xgbe_free_rx_skbuff\n"); } +static void xgbe_adjust_link(struct net_device *netdev) +{ + struct xgbe_prv_data *pdata = netdev_priv(netdev); + struct xgbe_hw_if *hw_if = &pdata->hw_if; + struct phy_device *phydev = pdata->phydev; + int new_state = 0; + + if (phydev == NULL) + return; + + if (phydev->link) { + /* Flow control support */ + if (pdata->pause_autoneg) { + if (phydev->pause || phydev->asym_pause) { + pdata->tx_pause = 1; + pdata->rx_pause = 1; + } else { + pdata->tx_pause = 0; + pdata->rx_pause = 0; + } + } + + if (pdata->tx_pause != pdata->phy_tx_pause) { + hw_if->config_tx_flow_control(pdata); + pdata->phy_tx_pause = pdata->tx_pause; + } + + if (pdata->rx_pause != pdata->phy_rx_pause) { + hw_if->config_rx_flow_control(pdata); + pdata->phy_rx_pause = pdata->rx_pause; + } + + /* Speed support */ + if (phydev->speed != pdata->phy_speed) { + new_state = 1; + + switch (phydev->speed) { + case SPEED_10000: + hw_if->set_xgmii_speed(pdata); + break; + + case SPEED_2500: + hw_if->set_gmii_2500_speed(pdata); + break; + + case SPEED_1000: + hw_if->set_gmii_speed(pdata); + break; + } + pdata->phy_speed = phydev->speed; + } + + if (phydev->link != pdata->phy_link) { + new_state = 1; + pdata->phy_link = 1; + } + } else if (pdata->phy_link) { + new_state = 1; + pdata->phy_link = 0; + pdata->phy_speed = SPEED_UNKNOWN; + } + + if (new_state) + phy_print_status(phydev); +} + +static int xgbe_phy_init(struct xgbe_prv_data *pdata) +{ + struct net_device *netdev = pdata->netdev; + struct phy_device *phydev = pdata->phydev; + int ret; + + pdata->phy_link = -1; + pdata->phy_speed = SPEED_UNKNOWN; + pdata->phy_tx_pause = pdata->tx_pause; + pdata->phy_rx_pause = pdata->rx_pause; + + ret = phy_connect_direct(netdev, phydev, &xgbe_adjust_link, + pdata->phy_mode); + if (ret) { + netdev_err(netdev, "phy_connect_direct failed\n"); + return ret; + } + + if (!phydev->drv || (phydev->drv->phy_id == 0)) { + netdev_err(netdev, "phy_id not valid\n"); + ret = -ENODEV; + goto err_phy_connect; + } + DBGPR(" phy_connect_direct succeeded for PHY %s, link=%d\n", + dev_name(&phydev->dev), phydev->link); + + return 0; + +err_phy_connect: + phy_disconnect(phydev); + + return ret; +} + +static void xgbe_phy_exit(struct xgbe_prv_data *pdata) +{ + if (!pdata->phydev) + return; + + phy_disconnect(pdata->phydev); +} + int xgbe_powerdown(struct net_device *netdev, unsigned int caller) { struct xgbe_prv_data *pdata = netdev_priv(netdev); @@ -502,7 +652,7 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller) netif_device_detach(netdev); netif_tx_stop_all_queues(netdev); - xgbe_napi_disable(pdata); + xgbe_napi_disable(pdata, 0); /* Powerdown Tx/Rx */ hw_if->powerdown_tx(pdata); @@ -591,7 +741,7 @@ static void xgbe_stop(struct xgbe_prv_data *pdata) phy_stop(pdata->phydev); netif_tx_stop_all_queues(netdev); - xgbe_napi_disable(pdata); + xgbe_napi_disable(pdata, 1); xgbe_stop_tx_timers(pdata); @@ -639,6 +789,197 @@ static void xgbe_restart(struct work_struct *work) rtnl_unlock(); } +static void xgbe_tx_tstamp(struct work_struct *work) +{ + struct xgbe_prv_data *pdata = container_of(work, + struct xgbe_prv_data, + tx_tstamp_work); + struct skb_shared_hwtstamps hwtstamps; + u64 nsec; + unsigned long flags; + + if (pdata->tx_tstamp) { + nsec = timecounter_cyc2time(&pdata->tstamp_tc, + pdata->tx_tstamp); + + memset(&hwtstamps, 0, sizeof(hwtstamps)); + hwtstamps.hwtstamp = ns_to_ktime(nsec); + skb_tstamp_tx(pdata->tx_tstamp_skb, &hwtstamps); + } + + dev_kfree_skb_any(pdata->tx_tstamp_skb); + + spin_lock_irqsave(&pdata->tstamp_lock, flags); + pdata->tx_tstamp_skb = NULL; + spin_unlock_irqrestore(&pdata->tstamp_lock, flags); +} + +static int xgbe_get_hwtstamp_settings(struct xgbe_prv_data *pdata, + struct ifreq *ifreq) +{ + if (copy_to_user(ifreq->ifr_data, &pdata->tstamp_config, + sizeof(pdata->tstamp_config))) + return -EFAULT; + + return 0; +} + +static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata, + struct ifreq *ifreq) +{ + struct hwtstamp_config config; + unsigned int mac_tscr; + + if (copy_from_user(&config, ifreq->ifr_data, sizeof(config))) + return -EFAULT; + + if (config.flags) + return -EINVAL; + + mac_tscr = 0; + + switch (config.tx_type) { + case HWTSTAMP_TX_OFF: + break; + + case HWTSTAMP_TX_ON: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + default: + return -ERANGE; + } + + switch (config.rx_filter) { + case HWTSTAMP_FILTER_NONE: + break; + + case HWTSTAMP_FILTER_ALL: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENALL, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2, UDP, any kind of event packet */ + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + /* PTP v1, UDP, any kind of event packet */ + case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2, UDP, Sync packet */ + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + /* PTP v1, UDP, Sync packet */ + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2, UDP, Delay_req packet */ + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + /* PTP v1, UDP, Delay_req packet */ + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* 802.AS1, Ethernet, any kind of event packet */ + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* 802.AS1, Ethernet, Sync packet */ + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* 802.AS1, Ethernet, Delay_req packet */ + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, AV8021ASMEN, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2/802.AS1, any layer, any kind of event packet */ + case HWTSTAMP_FILTER_PTP_V2_EVENT: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, SNAPTYPSEL, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2/802.AS1, any layer, Sync packet */ + case HWTSTAMP_FILTER_PTP_V2_SYNC: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + /* PTP v2/802.AS1, any layer, Delay_req packet */ + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV4ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSIPV6ENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSMSTRENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSEVNTENA, 1); + XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSENA, 1); + break; + + default: + return -ERANGE; + } + + pdata->hw_if.config_tstamp(pdata, mac_tscr); + + memcpy(&pdata->tstamp_config, &config, sizeof(config)); + + return 0; +} + +static void xgbe_prep_tx_tstamp(struct xgbe_prv_data *pdata, + struct sk_buff *skb, + struct xgbe_packet_data *packet) +{ + unsigned long flags; + + if (XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) { + spin_lock_irqsave(&pdata->tstamp_lock, flags); + if (pdata->tx_tstamp_skb) { + /* Another timestamp in progress, ignore this one */ + XGMAC_SET_BITS(packet->attributes, + TX_PACKET_ATTRIBUTES, PTP, 0); + } else { + pdata->tx_tstamp_skb = skb_get(skb); + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + } + spin_unlock_irqrestore(&pdata->tstamp_lock, flags); + } + + if (!XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) + skb_tx_timestamp(skb); +} + static void xgbe_prep_vlan(struct sk_buff *skb, struct xgbe_packet_data *packet) { if (vlan_tx_tag_present(skb)) @@ -682,7 +1023,8 @@ static int xgbe_is_tso(struct sk_buff *skb) return 1; } -static void xgbe_packet_info(struct xgbe_ring *ring, struct sk_buff *skb, +static void xgbe_packet_info(struct xgbe_prv_data *pdata, + struct xgbe_ring *ring, struct sk_buff *skb, struct xgbe_packet_data *packet) { struct skb_frag_struct *frag; @@ -724,16 +1066,21 @@ static void xgbe_packet_info(struct xgbe_ring *ring, struct sk_buff *skb, VLAN_CTAG, 1); } + if ((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && + (pdata->tstamp_config.tx_type == HWTSTAMP_TX_ON)) + XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, + PTP, 1); + for (len = skb_headlen(skb); len;) { packet->rdesc_count++; - len -= min_t(unsigned int, len, TX_MAX_BUF_SIZE); + len -= min_t(unsigned int, len, XGBE_TX_MAX_BUF_SIZE); } for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { frag = &skb_shinfo(skb)->frags[i]; for (len = skb_frag_size(frag); len; ) { packet->rdesc_count++; - len -= min_t(unsigned int, len, TX_MAX_BUF_SIZE); + len -= min_t(unsigned int, len, XGBE_TX_MAX_BUF_SIZE); } } } @@ -747,26 +1094,38 @@ static int xgbe_open(struct net_device *netdev) DBGPR("-->xgbe_open\n"); - /* Enable the clock */ - ret = clk_prepare_enable(pdata->sysclock); - if (ret) { - netdev_alert(netdev, "clk_prepare_enable failed\n"); + /* Initialize the phy */ + ret = xgbe_phy_init(pdata); + if (ret) return ret; + + /* Enable the clocks */ + ret = clk_prepare_enable(pdata->sysclk); + if (ret) { + netdev_alert(netdev, "dma clk_prepare_enable failed\n"); + goto err_phy_init; + } + + ret = clk_prepare_enable(pdata->ptpclk); + if (ret) { + netdev_alert(netdev, "ptp clk_prepare_enable failed\n"); + goto err_sysclk; } /* Calculate the Rx buffer size before allocating rings */ ret = xgbe_calc_rx_buf_size(netdev, netdev->mtu); if (ret < 0) - goto err_clk; + goto err_ptpclk; pdata->rx_buf_size = ret; /* Allocate the ring descriptors and buffers */ ret = desc_if->alloc_ring_resources(pdata); if (ret) - goto err_clk; + goto err_ptpclk; - /* Initialize the device restart work struct */ + /* Initialize the device restart and Tx timestamp work struct */ INIT_WORK(&pdata->restart_work, xgbe_restart); + INIT_WORK(&pdata->tx_tstamp_work, xgbe_tx_tstamp); /* Request interrupts */ ret = devm_request_irq(pdata->dev, netdev->irq, xgbe_isr, 0, @@ -795,8 +1154,14 @@ err_start: err_irq: desc_if->free_ring_resources(pdata); -err_clk: - clk_disable_unprepare(pdata->sysclock); +err_ptpclk: + clk_disable_unprepare(pdata->ptpclk); + +err_sysclk: + clk_disable_unprepare(pdata->sysclk); + +err_phy_init: + xgbe_phy_exit(pdata); return ret; } @@ -824,8 +1189,12 @@ static int xgbe_close(struct net_device *netdev) pdata->irq_number = 0; } - /* Disable the clock */ - clk_disable_unprepare(pdata->sysclock); + /* Disable the clocks */ + clk_disable_unprepare(pdata->ptpclk); + clk_disable_unprepare(pdata->sysclk); + + /* Release the phy */ + xgbe_phy_exit(pdata); DBGPR("<--xgbe_close\n"); @@ -861,7 +1230,7 @@ static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev) /* Calculate preliminary packet info */ memset(packet, 0, sizeof(*packet)); - xgbe_packet_info(ring, skb, packet); + xgbe_packet_info(pdata, ring, skb, packet); /* Check that there are enough descriptors available */ if (packet->rdesc_count > xgbe_tx_avail_desc(ring)) { @@ -885,6 +1254,8 @@ static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev) goto tx_netdev_return; } + xgbe_prep_tx_tstamp(pdata, skb, packet); + /* Configure required descriptor fields for transmission */ hw_if->pre_xmit(channel); @@ -911,18 +1282,10 @@ static void xgbe_set_rx_mode(struct net_device *netdev) pr_mode = ((netdev->flags & IFF_PROMISC) != 0); am_mode = ((netdev->flags & IFF_ALLMULTI) != 0); - if (netdev_uc_count(netdev) > pdata->hw_feat.addn_mac) - pr_mode = 1; - if (netdev_mc_count(netdev) > pdata->hw_feat.addn_mac) - am_mode = 1; - if ((netdev_uc_count(netdev) + netdev_mc_count(netdev)) > - pdata->hw_feat.addn_mac) - pr_mode = 1; - hw_if->set_promiscuous_mode(pdata, pr_mode); hw_if->set_all_multicast_mode(pdata, am_mode); - if (!pr_mode) - hw_if->set_addn_mac_addrs(pdata, am_mode); + + hw_if->add_mac_addresses(pdata); DBGPR("<--xgbe_set_rx_mode\n"); } @@ -947,6 +1310,27 @@ static int xgbe_set_mac_address(struct net_device *netdev, void *addr) return 0; } +static int xgbe_ioctl(struct net_device *netdev, struct ifreq *ifreq, int cmd) +{ + struct xgbe_prv_data *pdata = netdev_priv(netdev); + int ret; + + switch (cmd) { + case SIOCGHWTSTAMP: + ret = xgbe_get_hwtstamp_settings(pdata, ifreq); + break; + + case SIOCSHWTSTAMP: + ret = xgbe_set_hwtstamp_settings(pdata, ifreq); + break; + + default: + ret = -EOPNOTSUPP; + } + + return ret; +} + static int xgbe_change_mtu(struct net_device *netdev, int mtu) { struct xgbe_prv_data *pdata = netdev_priv(netdev); @@ -999,6 +1383,38 @@ static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev, return s; } +static int xgbe_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, + u16 vid) +{ + struct xgbe_prv_data *pdata = netdev_priv(netdev); + struct xgbe_hw_if *hw_if = &pdata->hw_if; + + DBGPR("-->%s\n", __func__); + + set_bit(vid, pdata->active_vlans); + hw_if->update_vlan_hash_table(pdata); + + DBGPR("<--%s\n", __func__); + + return 0; +} + +static int xgbe_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, + u16 vid) +{ + struct xgbe_prv_data *pdata = netdev_priv(netdev); + struct xgbe_hw_if *hw_if = &pdata->hw_if; + + DBGPR("-->%s\n", __func__); + + clear_bit(vid, pdata->active_vlans); + hw_if->update_vlan_hash_table(pdata); + + DBGPR("<--%s\n", __func__); + + return 0; +} + #ifdef CONFIG_NET_POLL_CONTROLLER static void xgbe_poll_controller(struct net_device *netdev) { @@ -1016,31 +1432,58 @@ static void xgbe_poll_controller(struct net_device *netdev) } #endif /* End CONFIG_NET_POLL_CONTROLLER */ +static int xgbe_setup_tc(struct net_device *netdev, u8 tc) +{ + struct xgbe_prv_data *pdata = netdev_priv(netdev); + unsigned int offset, queue; + u8 i; + + if (tc && (tc != pdata->hw_feat.tc_cnt)) + return -EINVAL; + + if (tc) { + netdev_set_num_tc(netdev, tc); + for (i = 0, queue = 0, offset = 0; i < tc; i++) { + while ((queue < pdata->tx_q_count) && + (pdata->q2tc_map[queue] == i)) + queue++; + + DBGPR(" TC%u using TXq%u-%u\n", i, offset, queue - 1); + netdev_set_tc_queue(netdev, i, queue - offset, offset); + offset = queue; + } + } else { + netdev_reset_tc(netdev); + } + + return 0; +} + static int xgbe_set_features(struct net_device *netdev, netdev_features_t features) { struct xgbe_prv_data *pdata = netdev_priv(netdev); struct xgbe_hw_if *hw_if = &pdata->hw_if; - unsigned int rxcsum_enabled, rxvlan_enabled; + unsigned int rxcsum, rxvlan, rxvlan_filter; - rxcsum_enabled = !!(pdata->netdev_features & NETIF_F_RXCSUM); - rxvlan_enabled = !!(pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_RX); + rxcsum = pdata->netdev_features & NETIF_F_RXCSUM; + rxvlan = pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_RX; + rxvlan_filter = pdata->netdev_features & NETIF_F_HW_VLAN_CTAG_FILTER; - if ((features & NETIF_F_RXCSUM) && !rxcsum_enabled) { + if ((features & NETIF_F_RXCSUM) && !rxcsum) hw_if->enable_rx_csum(pdata); - netdev_alert(netdev, "state change - rxcsum enabled\n"); - } else if (!(features & NETIF_F_RXCSUM) && rxcsum_enabled) { + else if (!(features & NETIF_F_RXCSUM) && rxcsum) hw_if->disable_rx_csum(pdata); - netdev_alert(netdev, "state change - rxcsum disabled\n"); - } - if ((features & NETIF_F_HW_VLAN_CTAG_RX) && !rxvlan_enabled) { + if ((features & NETIF_F_HW_VLAN_CTAG_RX) && !rxvlan) hw_if->enable_rx_vlan_stripping(pdata); - netdev_alert(netdev, "state change - rxvlan enabled\n"); - } else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) && rxvlan_enabled) { + else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) && rxvlan) hw_if->disable_rx_vlan_stripping(pdata); - netdev_alert(netdev, "state change - rxvlan disabled\n"); - } + + if ((features & NETIF_F_HW_VLAN_CTAG_FILTER) && !rxvlan_filter) + hw_if->enable_rx_vlan_filtering(pdata); + else if (!(features & NETIF_F_HW_VLAN_CTAG_FILTER) && rxvlan_filter) + hw_if->disable_rx_vlan_filtering(pdata); pdata->netdev_features = features; @@ -1056,11 +1499,15 @@ static const struct net_device_ops xgbe_netdev_ops = { .ndo_set_rx_mode = xgbe_set_rx_mode, .ndo_set_mac_address = xgbe_set_mac_address, .ndo_validate_addr = eth_validate_addr, + .ndo_do_ioctl = xgbe_ioctl, .ndo_change_mtu = xgbe_change_mtu, .ndo_get_stats64 = xgbe_get_stats64, + .ndo_vlan_rx_add_vid = xgbe_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = xgbe_vlan_rx_kill_vid, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = xgbe_poll_controller, #endif + .ndo_setup_tc = xgbe_setup_tc, .ndo_set_features = xgbe_set_features, }; @@ -1069,6 +1516,22 @@ struct net_device_ops *xgbe_get_netdev_ops(void) return (struct net_device_ops *)&xgbe_netdev_ops; } +static void xgbe_rx_refresh(struct xgbe_channel *channel) +{ + struct xgbe_prv_data *pdata = channel->pdata; + struct xgbe_desc_if *desc_if = &pdata->desc_if; + struct xgbe_ring *ring = channel->rx_ring; + struct xgbe_ring_data *rdata; + + desc_if->realloc_skb(channel); + + /* Update the Rx Tail Pointer Register with address of + * the last cleaned entry */ + rdata = XGBE_GET_DESC_DATA(ring, ring->rx.realloc_index - 1); + XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO, + lower_32_bits(rdata->rdesc_dma)); +} + static int xgbe_tx_poll(struct xgbe_channel *channel) { struct xgbe_prv_data *pdata = channel->pdata; @@ -1089,8 +1552,9 @@ static int xgbe_tx_poll(struct xgbe_channel *channel) spin_lock_irqsave(&ring->lock, flags); - while ((processed < TX_DESC_MAX_PROC) && (ring->dirty < ring->cur)) { - rdata = GET_DESC_DATA(ring, ring->dirty); + while ((processed < XGBE_TX_DESC_MAX_PROC) && + (ring->dirty < ring->cur)) { + rdata = XGBE_GET_DESC_DATA(ring, ring->dirty); rdesc = rdata->rdesc; if (!hw_if->tx_complete(rdesc)) @@ -1109,7 +1573,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel) } if ((ring->tx.queue_stopped == 1) && - (xgbe_tx_avail_desc(ring) > TX_DESC_MIN_FREE)) { + (xgbe_tx_avail_desc(ring) > XGBE_TX_DESC_MIN_FREE)) { ring->tx.queue_stopped = 0; netif_wake_subqueue(netdev, channel->queue_index); } @@ -1125,14 +1589,14 @@ static int xgbe_rx_poll(struct xgbe_channel *channel, int budget) { struct xgbe_prv_data *pdata = channel->pdata; struct xgbe_hw_if *hw_if = &pdata->hw_if; - struct xgbe_desc_if *desc_if = &pdata->desc_if; struct xgbe_ring *ring = channel->rx_ring; struct xgbe_ring_data *rdata; struct xgbe_packet_data *packet; struct net_device *netdev = pdata->netdev; struct sk_buff *skb; - unsigned int incomplete, error; - unsigned int cur_len, put_len, max_len; + struct skb_shared_hwtstamps *hwtstamps; + unsigned int incomplete, error, context_next, context; + unsigned int len, put_len, max_len; int received = 0; DBGPR("-->xgbe_rx_poll: budget=%d\n", budget); @@ -1141,18 +1605,32 @@ static int xgbe_rx_poll(struct xgbe_channel *channel, int budget) if (!ring) return 0; + rdata = XGBE_GET_DESC_DATA(ring, ring->cur); packet = &ring->packet_data; while (received < budget) { DBGPR(" cur = %d\n", ring->cur); - /* Clear the packet data information */ - memset(packet, 0, sizeof(*packet)); - skb = NULL; - error = 0; - cur_len = 0; + /* First time in loop see if we need to restore state */ + if (!received && rdata->state_saved) { + incomplete = rdata->state.incomplete; + context_next = rdata->state.context_next; + skb = rdata->state.skb; + error = rdata->state.error; + len = rdata->state.len; + } else { + memset(packet, 0, sizeof(*packet)); + incomplete = 0; + context_next = 0; + skb = NULL; + error = 0; + len = 0; + } read_again: - rdata = GET_DESC_DATA(ring, ring->cur); + rdata = XGBE_GET_DESC_DATA(ring, ring->cur); + + if (ring->dirty > (XGBE_RX_DESC_CNT >> 3)) + xgbe_rx_refresh(channel); if (hw_if->dev_read(channel)) break; @@ -1168,9 +1646,15 @@ read_again: incomplete = XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, INCOMPLETE); + context_next = XGMAC_GET_BITS(packet->attributes, + RX_PACKET_ATTRIBUTES, + CONTEXT_NEXT); + context = XGMAC_GET_BITS(packet->attributes, + RX_PACKET_ATTRIBUTES, + CONTEXT); /* Earlier error, just drain the remaining data */ - if (incomplete && error) + if ((incomplete || context_next) && error) goto read_again; if (error || packet->errors) { @@ -1180,30 +1664,37 @@ read_again: continue; } - put_len = rdata->len - cur_len; - if (skb) { - if (pskb_expand_head(skb, 0, put_len, GFP_ATOMIC)) { - DBGPR("pskb_expand_head error\n"); - if (incomplete) { - error = 1; - goto read_again; + if (!context) { + put_len = rdata->len - len; + if (skb) { + if (pskb_expand_head(skb, 0, put_len, + GFP_ATOMIC)) { + DBGPR("pskb_expand_head error\n"); + if (incomplete) { + error = 1; + goto read_again; + } + + dev_kfree_skb(skb); + continue; } - - dev_kfree_skb(skb); - continue; + memcpy(skb_tail_pointer(skb), rdata->skb->data, + put_len); + } else { + skb = rdata->skb; + rdata->skb = NULL; } - memcpy(skb_tail_pointer(skb), rdata->skb->data, - put_len); - } else { - skb = rdata->skb; - rdata->skb = NULL; + skb_put(skb, put_len); + len += put_len; } - skb_put(skb, put_len); - cur_len += put_len; - if (incomplete) + if (incomplete || context_next) goto read_again; + /* Stray Context Descriptor? */ + if (!skb) + continue; + /* Be sure we don't exceed the configured MTU */ max_len = netdev->mtu + ETH_HLEN; if (!(netdev->features & NETIF_F_HW_VLAN_CTAG_RX) && @@ -1230,6 +1721,16 @@ read_again: __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), packet->vlan_ctag); + if (XGMAC_GET_BITS(packet->attributes, + RX_PACKET_ATTRIBUTES, RX_TSTAMP)) { + u64 nsec; + + nsec = timecounter_cyc2time(&pdata->tstamp_tc, + packet->rx_tstamp); + hwtstamps = skb_hwtstamps(skb); + hwtstamps->hwtstamp = ns_to_ktime(nsec); + } + skb->dev = netdev; skb->protocol = eth_type_trans(skb, netdev); skb_record_rx_queue(skb, channel->queue_index); @@ -1239,14 +1740,15 @@ read_again: napi_gro_receive(&pdata->napi, skb); } - if (received) { - desc_if->realloc_skb(channel); - - /* Update the Rx Tail Pointer Register with address of - * the last cleaned entry */ - rdata = GET_DESC_DATA(ring, ring->rx.realloc_index - 1); - XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO, - lower_32_bits(rdata->rdesc_dma)); + /* Check if we need to save state before leaving */ + if (received && (incomplete || context_next)) { + rdata = XGBE_GET_DESC_DATA(ring, ring->cur); + rdata->state_saved = 1; + rdata->state.incomplete = incomplete; + rdata->state.context_next = context_next; + rdata->state.skb = skb; + rdata->state.len = len; + rdata->state.error = error; } DBGPR("<--xgbe_rx_poll: received = %d\n", received); @@ -1259,21 +1761,28 @@ static int xgbe_poll(struct napi_struct *napi, int budget) struct xgbe_prv_data *pdata = container_of(napi, struct xgbe_prv_data, napi); struct xgbe_channel *channel; - int processed; + int ring_budget; + int processed, last_processed; unsigned int i; DBGPR("-->xgbe_poll: budget=%d\n", budget); - /* Cleanup Tx ring first */ - channel = pdata->channel; - for (i = 0; i < pdata->channel_count; i++, channel++) - xgbe_tx_poll(channel); - - /* Process Rx ring next */ processed = 0; - channel = pdata->channel; - for (i = 0; i < pdata->channel_count; i++, channel++) - processed += xgbe_rx_poll(channel, budget - processed); + ring_budget = budget / pdata->rx_ring_count; + do { + last_processed = processed; + + channel = pdata->channel; + for (i = 0; i < pdata->channel_count; i++, channel++) { + /* Cleanup Tx ring first */ + xgbe_tx_poll(channel); + + /* Process Rx ring next */ + if (ring_budget > (budget - processed)) + ring_budget = budget - processed; + processed += xgbe_rx_poll(channel, ring_budget); + } + } while ((processed < budget) && (processed != last_processed)); /* If we processed everything, we are done */ if (processed < budget) { @@ -1296,7 +1805,7 @@ void xgbe_dump_tx_desc(struct xgbe_ring *ring, unsigned int idx, struct xgbe_ring_desc *rdesc; while (count--) { - rdata = GET_DESC_DATA(ring, idx); + rdata = XGBE_GET_DESC_DATA(ring, idx); rdesc = rdata->rdesc; DBGPR("TX_NORMAL_DESC[%d %s] = %08x:%08x:%08x:%08x\n", idx, (flag == 1) ? "QUEUED FOR TX" : "TX BY DEVICE", |