diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igb')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_82575.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_defines.h | 11 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_phy.c | 29 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_phy.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_regs.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 41 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ethtool.c | 198 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 711 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_ptp.c | 677 |
9 files changed, 964 insertions, 728 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index ba994fb4cec6..ca4641e2f748 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -2223,11 +2223,10 @@ out: s32 igb_set_eee_i350(struct e1000_hw *hw) { s32 ret_val = 0; - u32 ipcnfg, eeer, ctrl_ext; + u32 ipcnfg, eeer; - ctrl_ext = rd32(E1000_CTRL_EXT); - if ((hw->mac.type != e1000_i350) || - (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK)) + if ((hw->mac.type < e1000_i350) || + (hw->phy.media_type != e1000_media_type_copper)) goto out; ipcnfg = rd32(E1000_IPCNFG); eeer = rd32(E1000_EEER); @@ -2240,6 +2239,14 @@ s32 igb_set_eee_i350(struct e1000_hw *hw) E1000_EEER_RX_LPI_EN | E1000_EEER_LPI_FC); + /* keep the LPI clock running before EEE is enabled */ + if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) { + u32 eee_su; + eee_su = rd32(E1000_EEE_SU); + eee_su &= ~E1000_EEE_SU_LPI_CLK_STP; + wr32(E1000_EEE_SU, eee_su); + } + } else { ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN | E1000_IPCNFG_EEE_100M_AN); @@ -2249,6 +2256,8 @@ s32 igb_set_eee_i350(struct e1000_hw *hw) } wr32(E1000_IPCNFG, ipcnfg); wr32(E1000_EEER, eeer); + rd32(E1000_IPCNFG); + rd32(E1000_EEER); out: return ret_val; diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h index ec7e4fe3e3ee..de4b41ec3c40 100644 --- a/drivers/net/ethernet/intel/igb/e1000_defines.h +++ b/drivers/net/ethernet/intel/igb/e1000_defines.h @@ -322,6 +322,9 @@ #define E1000_FCRTC_RTH_COAL_SHIFT 4 #define E1000_PCIEMISC_LX_DECISION 0x00000080 /* Lx power decision */ +/* Timestamp in Rx buffer */ +#define E1000_RXPBS_CFG_TS_EN 0x80000000 + /* SerDes Control */ #define E1000_SCTL_DISABLE_SERDES_LOOPBACK 0x0400 @@ -360,6 +363,7 @@ #define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ #define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ #define E1000_ICR_VMMB 0x00000100 /* VM MB event */ +#define E1000_ICR_TS 0x00080000 /* Time Sync Interrupt */ #define E1000_ICR_DRSTA 0x40000000 /* Device Reset Asserted */ /* If this bit asserted, the driver should claim the interrupt */ #define E1000_ICR_INT_ASSERTED 0x80000000 @@ -399,6 +403,7 @@ #define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ #define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ #define E1000_IMS_VMMB E1000_ICR_VMMB /* Mail box activity */ +#define E1000_IMS_TS E1000_ICR_TS /* Time Sync Interrupt */ #define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ #define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ #define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ @@ -510,6 +515,9 @@ #define E1000_TIMINCA_16NS_SHIFT 24 +#define E1000_TSICR_TXTS 0x00000002 +#define E1000_TSIM_TXTS 0x00000002 + #define E1000_MDICNFG_EXT_MDIO 0x80000000 /* MDI ext/int destination */ #define E1000_MDICNFG_COM_MDIO 0x40000000 /* MDI shared w/ lan 0 */ #define E1000_MDICNFG_PHY_MASK 0x03E00000 @@ -849,8 +857,9 @@ #define E1000_IPCNFG_EEE_100M_AN 0x00000004 /* EEE Enable 100M AN */ #define E1000_EEER_TX_LPI_EN 0x00010000 /* EEE Tx LPI Enable */ #define E1000_EEER_RX_LPI_EN 0x00020000 /* EEE Rx LPI Enable */ -#define E1000_EEER_FRC_AN 0x10000000 /* Enable EEE in loopback */ +#define E1000_EEER_FRC_AN 0x10000000 /* Enable EEE in loopback */ #define E1000_EEER_LPI_FC 0x00040000 /* EEE Enable on FC */ +#define E1000_EEE_SU_LPI_CLK_STP 0X00800000 /* EEE LPI Clock Stop */ /* SerDes Control */ #define E1000_GEN_CTL_READY 0x80000000 diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c index 7be98b6f1052..3404bc79f4ca 100644 --- a/drivers/net/ethernet/intel/igb/e1000_phy.c +++ b/drivers/net/ethernet/intel/igb/e1000_phy.c @@ -464,6 +464,32 @@ s32 igb_copper_link_setup_82580(struct e1000_hw *hw) phy_data |= I82580_CFG_ENABLE_DOWNSHIFT; ret_val = phy->ops.write_reg(hw, I82580_CFG_REG, phy_data); + if (ret_val) + goto out; + + /* Set MDI/MDIX mode */ + ret_val = phy->ops.read_reg(hw, I82580_PHY_CTRL_2, &phy_data); + if (ret_val) + goto out; + phy_data &= ~I82580_PHY_CTRL2_MDIX_CFG_MASK; + /* + * Options: + * 0 - Auto (default) + * 1 - MDI mode + * 2 - MDI-X mode + */ + switch (hw->phy.mdix) { + case 1: + break; + case 2: + phy_data |= I82580_PHY_CTRL2_MANUAL_MDIX; + break; + case 0: + default: + phy_data |= I82580_PHY_CTRL2_AUTO_MDI_MDIX; + break; + } + ret_val = hw->phy.ops.write_reg(hw, I82580_PHY_CTRL_2, phy_data); out: return ret_val; @@ -2246,8 +2272,7 @@ s32 igb_phy_force_speed_duplex_82580(struct e1000_hw *hw) if (ret_val) goto out; - phy_data &= ~I82580_PHY_CTRL2_AUTO_MDIX; - phy_data &= ~I82580_PHY_CTRL2_FORCE_MDI_MDIX; + phy_data &= ~I82580_PHY_CTRL2_MDIX_CFG_MASK; ret_val = phy->ops.write_reg(hw, I82580_PHY_CTRL_2, phy_data); if (ret_val) diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.h b/drivers/net/ethernet/intel/igb/e1000_phy.h index 34e40619f16b..6ac3299bfcb9 100644 --- a/drivers/net/ethernet/intel/igb/e1000_phy.h +++ b/drivers/net/ethernet/intel/igb/e1000_phy.h @@ -111,8 +111,9 @@ s32 igb_check_polarity_m88(struct e1000_hw *hw); #define I82580_PHY_STATUS2_SPEED_100MBPS 0x0100 /* I82580 PHY Control 2 */ -#define I82580_PHY_CTRL2_AUTO_MDIX 0x0400 -#define I82580_PHY_CTRL2_FORCE_MDI_MDIX 0x0200 +#define I82580_PHY_CTRL2_MANUAL_MDIX 0x0200 +#define I82580_PHY_CTRL2_AUTO_MDI_MDIX 0x0400 +#define I82580_PHY_CTRL2_MDIX_CFG_MASK 0x0600 /* I82580 PHY Diagnostics Status */ #define I82580_DSTATUS_CABLE_LENGTH 0x03FC diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h index 28394bea5253..e5db48594e8a 100644 --- a/drivers/net/ethernet/intel/igb/e1000_regs.h +++ b/drivers/net/ethernet/intel/igb/e1000_regs.h @@ -91,6 +91,8 @@ #define E1000_TIMINCA 0x0B608 /* Increment attributes register - RW */ #define E1000_TSAUXC 0x0B640 /* Timesync Auxiliary Control register */ #define E1000_SYSTIMR 0x0B6F8 /* System time register Residue */ +#define E1000_TSICR 0x0B66C /* Interrupt Cause Register */ +#define E1000_TSIM 0x0B674 /* Interrupt Mask Register */ /* Filtering Registers */ #define E1000_SAQF(_n) (0x5980 + 4 * (_n)) @@ -347,6 +349,7 @@ /* Energy Efficient Ethernet "EEE" register */ #define E1000_IPCNFG 0x0E38 /* Internal PHY Configuration */ #define E1000_EEER 0x0E30 /* Energy Efficient Ethernet */ +#define E1000_EEE_SU 0X0E34 /* EEE Setup */ /* Thermal Sensor Register */ #define E1000_THSTAT 0x08110 /* Thermal Sensor Status */ diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 9e572dd29ab2..8aad230c0592 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -34,9 +34,11 @@ #include "e1000_mac.h" #include "e1000_82575.h" +#ifdef CONFIG_IGB_PTP #include <linux/clocksource.h> #include <linux/net_tstamp.h> #include <linux/ptp_clock_kernel.h> +#endif /* CONFIG_IGB_PTP */ #include <linux/bitops.h> #include <linux/if_vlan.h> @@ -99,7 +101,6 @@ struct vf_data_storage { u16 pf_vlan; /* When set, guest VLAN config not allowed. */ u16 pf_qos; u16 tx_rate; - struct pci_dev *vfdev; }; #define IGB_VF_FLAG_CTS 0x00000001 /* VF is clear to send data */ @@ -131,9 +132,9 @@ struct vf_data_storage { #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 /* Supported Rx Buffer Sizes */ -#define IGB_RXBUFFER_512 512 +#define IGB_RXBUFFER_256 256 #define IGB_RXBUFFER_16384 16384 -#define IGB_RX_HDR_LEN IGB_RXBUFFER_512 +#define IGB_RX_HDR_LEN IGB_RXBUFFER_256 /* How many Tx Descriptors do we need to call netif_wake_queue ? */ #define IGB_TX_QUEUE_WAKE 16 @@ -167,8 +168,8 @@ struct igb_tx_buffer { unsigned int bytecount; u16 gso_segs; __be16 protocol; - dma_addr_t dma; - u32 length; + DEFINE_DMA_UNMAP_ADDR(dma); + DEFINE_DMA_UNMAP_LEN(len); u32 tx_flags; }; @@ -212,7 +213,6 @@ struct igb_q_vector { struct igb_ring_container rx, tx; struct napi_struct napi; - int numa_node; u16 itr_val; u8 set_itr; @@ -257,7 +257,6 @@ struct igb_ring { }; /* Items past this point are only used during ring alloc / free */ dma_addr_t dma; /* phys address of the ring */ - int numa_node; /* node to alloc ring memory on */ }; enum e1000_ring_flags_t { @@ -342,7 +341,6 @@ struct igb_adapter { /* OS defined structs */ struct pci_dev *pdev; - struct hwtstamp_config hwtstamp_config; spinlock_t stats64_lock; struct rtnl_link_stats64 stats64; @@ -373,15 +371,19 @@ struct igb_adapter { int vf_rate_link_speed; u32 rss_queues; u32 wvbr; - int node; u32 *shadow_vfta; +#ifdef CONFIG_IGB_PTP struct ptp_clock *ptp_clock; - struct ptp_clock_info caps; - struct delayed_work overflow_work; + struct ptp_clock_info ptp_caps; + struct delayed_work ptp_overflow_work; + struct work_struct ptp_tx_work; + struct sk_buff *ptp_tx_skb; spinlock_t tmreg_lock; struct cyclecounter cc; struct timecounter tc; +#endif /* CONFIG_IGB_PTP */ + char fw_version[32]; }; @@ -390,6 +392,7 @@ struct igb_adapter { #define IGB_FLAG_QUAD_PORT_A (1 << 2) #define IGB_FLAG_QUEUE_PAIRS (1 << 3) #define IGB_FLAG_DMAC (1 << 4) +#define IGB_FLAG_PTP (1 << 5) /* DMA Coalescing defines */ #define IGB_MIN_TXPBSIZE 20408 @@ -435,13 +438,17 @@ extern void igb_power_up_link(struct igb_adapter *); extern void igb_set_fw_version(struct igb_adapter *); #ifdef CONFIG_IGB_PTP extern void igb_ptp_init(struct igb_adapter *adapter); -extern void igb_ptp_remove(struct igb_adapter *adapter); - -extern void igb_systim_to_hwtstamp(struct igb_adapter *adapter, - struct skb_shared_hwtstamps *hwtstamps, - u64 systim); +extern void igb_ptp_stop(struct igb_adapter *adapter); +extern void igb_ptp_reset(struct igb_adapter *adapter); +extern void igb_ptp_tx_work(struct work_struct *work); +extern void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter); +extern void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector, + union e1000_adv_rx_desc *rx_desc, + struct sk_buff *skb); +extern int igb_ptp_hwtstamp_ioctl(struct net_device *netdev, + struct ifreq *ifr, int cmd); +#endif /* CONFIG_IGB_PTP */ -#endif static inline s32 igb_reset_phy(struct e1000_hw *hw) { if (hw->phy.ops.reset) diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 70591117051b..2ea012849825 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -148,9 +148,9 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full| SUPPORTED_Autoneg | - SUPPORTED_TP); - ecmd->advertising = (ADVERTISED_TP | - ADVERTISED_Pause); + SUPPORTED_TP | + SUPPORTED_Pause); + ecmd->advertising = ADVERTISED_TP; if (hw->mac.autoneg == 1) { ecmd->advertising |= ADVERTISED_Autoneg; @@ -158,6 +158,21 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) ecmd->advertising |= hw->phy.autoneg_advertised; } + if (hw->mac.autoneg != 1) + ecmd->advertising &= ~(ADVERTISED_Pause | + ADVERTISED_Asym_Pause); + + if (hw->fc.requested_mode == e1000_fc_full) + ecmd->advertising |= ADVERTISED_Pause; + else if (hw->fc.requested_mode == e1000_fc_rx_pause) + ecmd->advertising |= (ADVERTISED_Pause | + ADVERTISED_Asym_Pause); + else if (hw->fc.requested_mode == e1000_fc_tx_pause) + ecmd->advertising |= ADVERTISED_Asym_Pause; + else + ecmd->advertising &= ~(ADVERTISED_Pause | + ADVERTISED_Asym_Pause); + ecmd->port = PORT_TP; ecmd->phy_address = hw->phy.addr; } else { @@ -198,6 +213,19 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) } ecmd->autoneg = hw->mac.autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; + + /* MDI-X => 2; MDI =>1; Invalid =>0 */ + if (hw->phy.media_type == e1000_media_type_copper) + ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : + ETH_TP_MDI; + else + ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID; + + if (hw->phy.mdix == AUTO_ALL_MODES) + ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; + else + ecmd->eth_tp_mdix_ctrl = hw->phy.mdix; + return 0; } @@ -214,6 +242,22 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) return -EINVAL; } + /* + * MDI setting is only allowed when autoneg enabled because + * some hardware doesn't allow MDI setting when speed or + * duplex is forced. + */ + if (ecmd->eth_tp_mdix_ctrl) { + if (hw->phy.media_type != e1000_media_type_copper) + return -EOPNOTSUPP; + + if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) && + (ecmd->autoneg != AUTONEG_ENABLE)) { + dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); + return -EINVAL; + } + } + while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) msleep(1); @@ -227,12 +271,25 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) hw->fc.requested_mode = e1000_fc_default; } else { u32 speed = ethtool_cmd_speed(ecmd); + /* calling this overrides forced MDI setting */ if (igb_set_spd_dplx(adapter, speed, ecmd->duplex)) { clear_bit(__IGB_RESETTING, &adapter->state); return -EINVAL; } } + /* MDI-X => 2; MDI => 1; Auto => 3 */ + if (ecmd->eth_tp_mdix_ctrl) { + /* + * fix up the value for auto (3 => 0) as zero is mapped + * internally to auto + */ + if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) + hw->phy.mdix = AUTO_ALL_MODES; + else + hw->phy.mdix = ecmd->eth_tp_mdix_ctrl; + } + /* reset the link */ if (netif_running(adapter->netdev)) { igb_down(adapter); @@ -1469,33 +1526,22 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 ctrl_reg = 0; - u16 phy_reg = 0; hw->mac.autoneg = false; - switch (hw->phy.type) { - case e1000_phy_m88: - /* Auto-MDI/MDIX Off */ - igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); - /* reset to update Auto-MDI/MDIX */ - igb_write_phy_reg(hw, PHY_CONTROL, 0x9140); - /* autoneg off */ - igb_write_phy_reg(hw, PHY_CONTROL, 0x8140); - break; - case e1000_phy_82580: - /* enable MII loopback */ - igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041); - break; - case e1000_phy_i210: - /* set loopback speed in PHY */ - igb_read_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2), - &phy_reg); - phy_reg |= GS40G_MAC_SPEED_1G; - igb_write_phy_reg(hw, (GS40G_PAGE_SELECT & GS40G_PAGE_2), - phy_reg); - ctrl_reg = rd32(E1000_CTRL_EXT); - default: - break; + if (hw->phy.type == e1000_phy_m88) { + if (hw->phy.id != I210_I_PHY_ID) { + /* Auto-MDI/MDIX Off */ + igb_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); + /* reset to update Auto-MDI/MDIX */ + igb_write_phy_reg(hw, PHY_CONTROL, 0x9140); + /* autoneg off */ + igb_write_phy_reg(hw, PHY_CONTROL, 0x8140); + } else { + /* force 1000, set loopback */ + igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0); + igb_write_phy_reg(hw, PHY_CONTROL, 0x4140); + } } /* add small delay to avoid loopback test failure */ @@ -1513,7 +1559,7 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) E1000_CTRL_FD | /* Force Duplex to FULL */ E1000_CTRL_SLU); /* Set link up enable bit */ - if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210)) + if (hw->phy.type == e1000_phy_m88) ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ wr32(E1000_CTRL, ctrl_reg); @@ -1521,11 +1567,10 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter) /* Disable the receiver on the PHY so when a cable is plugged in, the * PHY does not begin to autoneg when a cable is reconnected to the NIC. */ - if ((hw->phy.type == e1000_phy_m88) || (hw->phy.type == e1000_phy_i210)) + if (hw->phy.type == e1000_phy_m88) igb_phy_disable_receiver(adapter); - udelay(500); - + mdelay(500); return 0; } @@ -1785,13 +1830,6 @@ static int igb_loopback_test(struct igb_adapter *adapter, u64 *data) *data = 0; goto out; } - if ((adapter->hw.mac.type == e1000_i210) - || (adapter->hw.mac.type == e1000_i211)) { - dev_err(&adapter->pdev->dev, - "Loopback test not supported on this part at this time.\n"); - *data = 0; - goto out; - } *data = igb_setup_desc_rings(adapter); if (*data) goto out; @@ -2257,6 +2295,54 @@ static void igb_get_strings(struct net_device *netdev, u32 stringset, u8 *data) } } +static int igb_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct igb_adapter *adapter = netdev_priv(dev); + + switch (adapter->hw.mac.type) { +#ifdef CONFIG_IGB_PTP + case e1000_82576: + case e1000_82580: + case e1000_i350: + case e1000_i210: + case e1000_i211: + info->so_timestamping = + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + + if (adapter->ptp_clock) + info->phc_index = ptp_clock_index(adapter->ptp_clock); + else + info->phc_index = -1; + + info->tx_types = + (1 << HWTSTAMP_TX_OFF) | + (1 << HWTSTAMP_TX_ON); + + info->rx_filters = 1 << HWTSTAMP_FILTER_NONE; + + /* 82576 does not support timestamping all packets. */ + if (adapter->hw.mac.type >= e1000_82580) + info->rx_filters |= 1 << HWTSTAMP_FILTER_ALL; + else + info->rx_filters |= + (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); + + return 0; +#endif /* CONFIG_IGB_PTP */ + default: + return -EOPNOTSUPP; + } +} + static int igb_ethtool_begin(struct net_device *netdev) { struct igb_adapter *adapter = netdev_priv(netdev); @@ -2270,38 +2356,6 @@ static void igb_ethtool_complete(struct net_device *netdev) pm_runtime_put(&adapter->pdev->dev); } -#ifdef CONFIG_IGB_PTP -static int igb_ethtool_get_ts_info(struct net_device *dev, - struct ethtool_ts_info *info) -{ - struct igb_adapter *adapter = netdev_priv(dev); - - info->so_timestamping = - SOF_TIMESTAMPING_TX_HARDWARE | - SOF_TIMESTAMPING_RX_HARDWARE | - SOF_TIMESTAMPING_RAW_HARDWARE; - - if (adapter->ptp_clock) - info->phc_index = ptp_clock_index(adapter->ptp_clock); - else - info->phc_index = -1; - - info->tx_types = - (1 << HWTSTAMP_TX_OFF) | - (1 << HWTSTAMP_TX_ON); - - info->rx_filters = - (1 << HWTSTAMP_FILTER_NONE) | - (1 << HWTSTAMP_FILTER_ALL) | - (1 << HWTSTAMP_FILTER_SOME) | - (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | - (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | - (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); - - return 0; -} - -#endif static const struct ethtool_ops igb_ethtool_ops = { .get_settings = igb_get_settings, .set_settings = igb_set_settings, @@ -2328,11 +2382,9 @@ static const struct ethtool_ops igb_ethtool_ops = { .get_ethtool_stats = igb_get_ethtool_stats, .get_coalesce = igb_get_coalesce, .set_coalesce = igb_set_coalesce, + .get_ts_info = igb_get_ts_info, .begin = igb_ethtool_begin, .complete = igb_ethtool_complete, -#ifdef CONFIG_IGB_PTP - .get_ts_info = igb_ethtool_get_ts_info, -#endif }; void igb_set_ethtool_ops(struct net_device *netdev) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index f88c822e57a6..e1ceb37ef12e 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -172,8 +172,7 @@ static void igb_check_vf_rate_limit(struct igb_adapter *); #ifdef CONFIG_PCI_IOV static int igb_vf_configure(struct igb_adapter *adapter, int vf); -static int igb_find_enabled_vfs(struct igb_adapter *adapter); -static int igb_check_vf_assignment(struct igb_adapter *adapter); +static bool igb_vfs_are_assigned(struct igb_adapter *adapter); #endif #ifdef CONFIG_PM @@ -404,8 +403,8 @@ static void igb_dump(struct igb_adapter *adapter) buffer_info = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n", n, tx_ring->next_to_use, tx_ring->next_to_clean, - (u64)buffer_info->dma, - buffer_info->length, + (u64)dma_unmap_addr(buffer_info, dma), + dma_unmap_len(buffer_info, len), buffer_info->next_to_watch, (u64)buffer_info->time_stamp); } @@ -456,8 +455,8 @@ static void igb_dump(struct igb_adapter *adapter) " %04X %p %016llX %p%s\n", i, le64_to_cpu(u0->a), le64_to_cpu(u0->b), - (u64)buffer_info->dma, - buffer_info->length, + (u64)dma_unmap_addr(buffer_info, dma), + dma_unmap_len(buffer_info, len), buffer_info->next_to_watch, (u64)buffer_info->time_stamp, buffer_info->skb, next_desc); @@ -466,7 +465,8 @@ static void igb_dump(struct igb_adapter *adapter) print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 1, buffer_info->skb->data, - buffer_info->length, true); + dma_unmap_len(buffer_info, len), + true); } } @@ -683,52 +683,29 @@ static int igb_alloc_queues(struct igb_adapter *adapter) { struct igb_ring *ring; int i; - int orig_node = adapter->node; for (i = 0; i < adapter->num_tx_queues; i++) { - if (orig_node == -1) { - int cur_node = next_online_node(adapter->node); - if (cur_node == MAX_NUMNODES) - cur_node = first_online_node; - adapter->node = cur_node; - } - ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL, - adapter->node); - if (!ring) - ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL); + ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL); if (!ring) goto err; ring->count = adapter->tx_ring_count; ring->queue_index = i; ring->dev = &adapter->pdev->dev; ring->netdev = adapter->netdev; - ring->numa_node = adapter->node; /* For 82575, context index must be unique per ring. */ if (adapter->hw.mac.type == e1000_82575) set_bit(IGB_RING_FLAG_TX_CTX_IDX, &ring->flags); adapter->tx_ring[i] = ring; } - /* Restore the adapter's original node */ - adapter->node = orig_node; for (i = 0; i < adapter->num_rx_queues; i++) { - if (orig_node == -1) { - int cur_node = next_online_node(adapter->node); - if (cur_node == MAX_NUMNODES) - cur_node = first_online_node; - adapter->node = cur_node; - } - ring = kzalloc_node(sizeof(struct igb_ring), GFP_KERNEL, - adapter->node); - if (!ring) - ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL); + ring = kzalloc(sizeof(struct igb_ring), GFP_KERNEL); if (!ring) goto err; ring->count = adapter->rx_ring_count; ring->queue_index = i; ring->dev = &adapter->pdev->dev; ring->netdev = adapter->netdev; - ring->numa_node = adapter->node; /* set flag indicating ring supports SCTP checksum offload */ if (adapter->hw.mac.type >= e1000_82576) set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags); @@ -742,16 +719,12 @@ static int igb_alloc_queues(struct igb_adapter *adapter) adapter->rx_ring[i] = ring; } - /* Restore the adapter's original node */ - adapter->node = orig_node; igb_cache_ring_register(adapter); return 0; err: - /* Restore the adapter's original node */ - adapter->node = orig_node; igb_free_queues(adapter); return -ENOMEM; @@ -1117,24 +1090,10 @@ static int igb_alloc_q_vectors(struct igb_adapter *adapter) struct igb_q_vector *q_vector; struct e1000_hw *hw = &adapter->hw; int v_idx; - int orig_node = adapter->node; for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { - if ((adapter->num_q_vectors == (adapter->num_rx_queues + - adapter->num_tx_queues)) && - (adapter->num_rx_queues == v_idx)) - adapter->node = orig_node; - if (orig_node == -1) { - int cur_node = next_online_node(adapter->node); - if (cur_node == MAX_NUMNODES) - cur_node = first_online_node; - adapter->node = cur_node; - } - q_vector = kzalloc_node(sizeof(struct igb_q_vector), GFP_KERNEL, - adapter->node); - if (!q_vector) - q_vector = kzalloc(sizeof(struct igb_q_vector), - GFP_KERNEL); + q_vector = kzalloc(sizeof(struct igb_q_vector), + GFP_KERNEL); if (!q_vector) goto err_out; q_vector->adapter = adapter; @@ -1143,14 +1102,10 @@ static int igb_alloc_q_vectors(struct igb_adapter *adapter) netif_napi_add(adapter->netdev, &q_vector->napi, igb_poll, 64); adapter->q_vector[v_idx] = q_vector; } - /* Restore the adapter's original node */ - adapter->node = orig_node; return 0; err_out: - /* Restore the adapter's original node */ - adapter->node = orig_node; igb_free_q_vectors(adapter); return -ENOMEM; } @@ -1751,6 +1706,11 @@ void igb_reset(struct igb_adapter *adapter) /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE); +#ifdef CONFIG_IGB_PTP + /* Re-enable PTP, where applicable. */ + igb_ptp_reset(adapter); +#endif /* CONFIG_IGB_PTP */ + igb_get_phy_info(hw); } @@ -2180,11 +2140,12 @@ static int __devinit igb_probe(struct pci_dev *pdev, } #endif + #ifdef CONFIG_IGB_PTP /* do hw tstamp init after resetting */ igb_ptp_init(adapter); +#endif /* CONFIG_IGB_PTP */ -#endif dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n"); /* print bus type/speed/width info */ dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n", @@ -2259,9 +2220,9 @@ static void __devexit igb_remove(struct pci_dev *pdev) pm_runtime_get_noresume(&pdev->dev); #ifdef CONFIG_IGB_PTP - igb_ptp_remove(adapter); + igb_ptp_stop(adapter); +#endif /* CONFIG_IGB_PTP */ -#endif /* * The watchdog timer may be rescheduled, so explicitly * disable watchdog from being rescheduled. @@ -2294,11 +2255,11 @@ static void __devexit igb_remove(struct pci_dev *pdev) /* reclaim resources allocated to VFs */ if (adapter->vf_data) { /* disable iov and allow time for transactions to clear */ - if (!igb_check_vf_assignment(adapter)) { + if (igb_vfs_are_assigned(adapter)) { + dev_info(&pdev->dev, "Unloading driver while VFs are assigned - VFs will not be deallocated\n"); + } else { pci_disable_sriov(pdev); msleep(500); - } else { - dev_info(&pdev->dev, "VF(s) assigned to guests!\n"); } kfree(adapter->vf_data); @@ -2338,7 +2299,7 @@ static void __devinit igb_probe_vfs(struct igb_adapter * adapter) #ifdef CONFIG_PCI_IOV struct pci_dev *pdev = adapter->pdev; struct e1000_hw *hw = &adapter->hw; - int old_vfs = igb_find_enabled_vfs(adapter); + int old_vfs = pci_num_vf(adapter->pdev); int i; /* Virtualization features not supported on i210 family. */ @@ -2418,8 +2379,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter) VLAN_HLEN; adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; - adapter->node = -1; - spin_lock_init(&adapter->stats64_lock); #ifdef CONFIG_PCI_IOV switch (hw->mac.type) { @@ -2666,13 +2625,11 @@ static int igb_close(struct net_device *netdev) int igb_setup_tx_resources(struct igb_ring *tx_ring) { struct device *dev = tx_ring->dev; - int orig_node = dev_to_node(dev); int size; size = sizeof(struct igb_tx_buffer) * tx_ring->count; - tx_ring->tx_buffer_info = vzalloc_node(size, tx_ring->numa_node); - if (!tx_ring->tx_buffer_info) - tx_ring->tx_buffer_info = vzalloc(size); + + tx_ring->tx_buffer_info = vzalloc(size); if (!tx_ring->tx_buffer_info) goto err; @@ -2680,18 +2637,10 @@ int igb_setup_tx_resources(struct igb_ring *tx_ring) tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc); tx_ring->size = ALIGN(tx_ring->size, 4096); - set_dev_node(dev, tx_ring->numa_node); tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, &tx_ring->dma, GFP_KERNEL); - set_dev_node(dev, orig_node); - if (!tx_ring->desc) - tx_ring->desc = dma_alloc_coherent(dev, - tx_ring->size, - &tx_ring->dma, - GFP_KERNEL); - if (!tx_ring->desc) goto err; @@ -2702,8 +2651,8 @@ int igb_setup_tx_resources(struct igb_ring *tx_ring) err: vfree(tx_ring->tx_buffer_info); - dev_err(dev, - "Unable to allocate memory for the transmit descriptor ring\n"); + tx_ring->tx_buffer_info = NULL; + dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); return -ENOMEM; } @@ -2820,34 +2769,23 @@ static void igb_configure_tx(struct igb_adapter *adapter) int igb_setup_rx_resources(struct igb_ring *rx_ring) { struct device *dev = rx_ring->dev; - int orig_node = dev_to_node(dev); - int size, desc_len; + int size; size = sizeof(struct igb_rx_buffer) * rx_ring->count; - rx_ring->rx_buffer_info = vzalloc_node(size, rx_ring->numa_node); - if (!rx_ring->rx_buffer_info) - rx_ring->rx_buffer_info = vzalloc(size); + + rx_ring->rx_buffer_info = vzalloc(size); if (!rx_ring->rx_buffer_info) goto err; - desc_len = sizeof(union e1000_adv_rx_desc); /* Round up to nearest 4K */ - rx_ring->size = rx_ring->count * desc_len; + rx_ring->size = rx_ring->count * sizeof(union e1000_adv_rx_desc); rx_ring->size = ALIGN(rx_ring->size, 4096); - set_dev_node(dev, rx_ring->numa_node); rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, &rx_ring->dma, GFP_KERNEL); - set_dev_node(dev, orig_node); - if (!rx_ring->desc) - rx_ring->desc = dma_alloc_coherent(dev, - rx_ring->size, - &rx_ring->dma, - GFP_KERNEL); - if (!rx_ring->desc) goto err; @@ -2859,8 +2797,7 @@ int igb_setup_rx_resources(struct igb_ring *rx_ring) err: vfree(rx_ring->rx_buffer_info); rx_ring->rx_buffer_info = NULL; - dev_err(dev, "Unable to allocate memory for the receive descriptor" - " ring\n"); + dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); return -ENOMEM; } @@ -2898,57 +2835,48 @@ static void igb_setup_mrqc(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 mrqc, rxcsum; - u32 j, num_rx_queues, shift = 0, shift2 = 0; - union e1000_reta { - u32 dword; - u8 bytes[4]; - } reta; - static const u8 rsshash[40] = { - 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67, - 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb, - 0xae, 0x7b, 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, - 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa }; + u32 j, num_rx_queues, shift = 0; + static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741, + 0xB08FA343, 0xCB2BCAD0, 0xB4307BAE, + 0xA32DCB77, 0x0CF23080, 0x3BB7426A, + 0xFA01ACBE }; /* Fill out hash function seeds */ - for (j = 0; j < 10; j++) { - u32 rsskey = rsshash[(j * 4)]; - rsskey |= rsshash[(j * 4) + 1] << 8; - rsskey |= rsshash[(j * 4) + 2] << 16; - rsskey |= rsshash[(j * 4) + 3] << 24; - array_wr32(E1000_RSSRK(0), j, rsskey); - } + for (j = 0; j < 10; j++) + wr32(E1000_RSSRK(j), rsskey[j]); num_rx_queues = adapter->rss_queues; - if (adapter->vfs_allocated_count) { - /* 82575 and 82576 supports 2 RSS queues for VMDq */ - switch (hw->mac.type) { - case e1000_i350: - case e1000_82580: - num_rx_queues = 1; - shift = 0; - break; - case e1000_82576: + switch (hw->mac.type) { + case e1000_82575: + shift = 6; + break; + case e1000_82576: + /* 82576 supports 2 RSS queues for SR-IOV */ + if (adapter->vfs_allocated_count) { shift = 3; num_rx_queues = 2; - break; - case e1000_82575: - shift = 2; - shift2 = 6; - default: - break; } - } else { - if (hw->mac.type == e1000_82575) - shift = 6; + break; + default: + break; } - for (j = 0; j < (32 * 4); j++) { - reta.bytes[j & 3] = (j % num_rx_queues) << shift; - if (shift2) - reta.bytes[j & 3] |= num_rx_queues << shift2; - if ((j & 3) == 3) - wr32(E1000_RETA(j >> 2), reta.dword); + /* + * Populate the indirection table 4 entries at a time. To do this + * we are generating the results for n and n+2 and then interleaving + * those with the results with n+1 and n+3. + */ + for (j = 0; j < 32; j++) { + /* first pass generates n and n+2 */ + u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues; + u32 reta = (base & 0x07800780) >> (7 - shift); + + /* second pass generates n+1 and n+3 */ + base += 0x00010001 * num_rx_queues; + reta |= (base & 0x07800780) << (1 + shift); + + wr32(E1000_RETA(j), reta); } /* @@ -3184,8 +3112,10 @@ void igb_configure_rx_ring(struct igb_adapter *adapter, srrctl |= (PAGE_SIZE / 2) >> E1000_SRRCTL_BSIZEPKT_SHIFT; #endif srrctl |= E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; +#ifdef CONFIG_IGB_PTP if (hw->mac.type >= e1000_82580) srrctl |= E1000_SRRCTL_TIMESTAMP; +#endif /* CONFIG_IGB_PTP */ /* Only set Drop Enable if we are supporting multiple queues */ if (adapter->vfs_allocated_count || adapter->num_rx_queues > 1) srrctl |= E1000_SRRCTL_DROP_EN; @@ -3269,20 +3199,20 @@ void igb_unmap_and_free_tx_resource(struct igb_ring *ring, { if (tx_buffer->skb) { dev_kfree_skb_any(tx_buffer->skb); - if (tx_buffer->dma) + if (dma_unmap_len(tx_buffer, len)) dma_unmap_single(ring->dev, - tx_buffer->dma, - tx_buffer->length, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), DMA_TO_DEVICE); - } else if (tx_buffer->dma) { + } else if (dma_unmap_len(tx_buffer, len)) { dma_unmap_page(ring->dev, - tx_buffer->dma, - tx_buffer->length, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), DMA_TO_DEVICE); } tx_buffer->next_to_watch = NULL; tx_buffer->skb = NULL; - tx_buffer->dma = 0; + dma_unmap_len_set(tx_buffer, len, 0); /* buffer_info must be completely set up in the transmit path */ } @@ -4229,9 +4159,11 @@ static __le32 igb_tx_cmd_type(u32 tx_flags) if (tx_flags & IGB_TX_FLAGS_VLAN) cmd_type |= cpu_to_le32(E1000_ADVTXD_DCMD_VLE); +#ifdef CONFIG_IGB_PTP /* set timestamp bit if present */ - if (tx_flags & IGB_TX_FLAGS_TSTAMP) + if (unlikely(tx_flags & IGB_TX_FLAGS_TSTAMP)) cmd_type |= cpu_to_le32(E1000_ADVTXD_MAC_TSTAMP); +#endif /* CONFIG_IGB_PTP */ /* set segmentation bits for TSO */ if (tx_flags & IGB_TX_FLAGS_TSO) @@ -4275,7 +4207,7 @@ static void igb_tx_map(struct igb_ring *tx_ring, const u8 hdr_len) { struct sk_buff *skb = first->skb; - struct igb_tx_buffer *tx_buffer_info; + struct igb_tx_buffer *tx_buffer; union e1000_adv_tx_desc *tx_desc; dma_addr_t dma; struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; @@ -4296,8 +4228,8 @@ static void igb_tx_map(struct igb_ring *tx_ring, goto dma_error; /* record length, and DMA address */ - first->length = size; - first->dma = dma; + dma_unmap_len_set(first, len, size); + dma_unmap_addr_set(first, dma, dma); tx_desc->read.buffer_addr = cpu_to_le64(dma); for (;;) { @@ -4339,9 +4271,9 @@ static void igb_tx_map(struct igb_ring *tx_ring, if (dma_mapping_error(tx_ring->dev, dma)) goto dma_error; - tx_buffer_info = &tx_ring->tx_buffer_info[i]; - tx_buffer_info->length = size; - tx_buffer_info->dma = dma; + tx_buffer = &tx_ring->tx_buffer_info[i]; + dma_unmap_len_set(tx_buffer, len, size); + dma_unmap_addr_set(tx_buffer, dma, dma); tx_desc->read.olinfo_status = 0; tx_desc->read.buffer_addr = cpu_to_le64(dma); @@ -4392,9 +4324,9 @@ dma_error: /* clear dma mappings for failed tx_buffer_info map */ for (;;) { - tx_buffer_info = &tx_ring->tx_buffer_info[i]; - igb_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); - if (tx_buffer_info == first) + tx_buffer = &tx_ring->tx_buffer_info[i]; + igb_unmap_and_free_tx_resource(tx_ring, tx_buffer); + if (tx_buffer == first) break; if (i == 0) i = tx_ring->count; @@ -4440,6 +4372,9 @@ static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, const u16 size) netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, struct igb_ring *tx_ring) { +#ifdef CONFIG_IGB_PTP + struct igb_adapter *adapter = netdev_priv(tx_ring->netdev); +#endif /* CONFIG_IGB_PTP */ struct igb_tx_buffer *first; int tso; u32 tx_flags = 0; @@ -4462,10 +4397,17 @@ netdev_tx_t igb_xmit_frame_ring(struct sk_buff *skb, first->bytecount = skb->len; first->gso_segs = 1; - if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { +#ifdef CONFIG_IGB_PTP + if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && + !(adapter->ptp_tx_skb))) { skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; tx_flags |= IGB_TX_FLAGS_TSTAMP; + + adapter->ptp_tx_skb = skb_get(skb); + if (adapter->hw.mac.type == e1000_82576) + schedule_work(&adapter->ptp_tx_work); } +#endif /* CONFIG_IGB_PTP */ if (vlan_tx_tag_present(skb)) { tx_flags |= IGB_TX_FLAGS_VLAN; @@ -4661,11 +4603,13 @@ void igb_update_stats(struct igb_adapter *adapter, bytes = 0; packets = 0; for (i = 0; i < adapter->num_rx_queues; i++) { - u32 rqdpc_tmp = rd32(E1000_RQDPC(i)) & 0x0FFF; + u32 rqdpc = rd32(E1000_RQDPC(i)); struct igb_ring *ring = adapter->rx_ring[i]; - ring->rx_stats.drops += rqdpc_tmp; - net_stats->rx_fifo_errors += rqdpc_tmp; + if (rqdpc) { + ring->rx_stats.drops += rqdpc; + net_stats->rx_fifo_errors += rqdpc; + } do { start = u64_stats_fetch_begin_bh(&ring->rx_syncp); @@ -4755,7 +4699,11 @@ void igb_update_stats(struct igb_adapter *adapter, reg = rd32(E1000_CTRL_EXT); if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) { adapter->stats.rxerrc += rd32(E1000_RXERRC); - adapter->stats.tncrs += rd32(E1000_TNCRS); + + /* this stat has invalid values on i210/i211 */ + if ((hw->mac.type != e1000_i210) && + (hw->mac.type != e1000_i211)) + adapter->stats.tncrs += rd32(E1000_TNCRS); } adapter->stats.tsctc += rd32(E1000_TSCTC); @@ -4852,6 +4800,19 @@ static irqreturn_t igb_msix_other(int irq, void *data) mod_timer(&adapter->watchdog_timer, jiffies + 1); } +#ifdef CONFIG_IGB_PTP + if (icr & E1000_ICR_TS) { + u32 tsicr = rd32(E1000_TSICR); + + if (tsicr & E1000_TSICR_TXTS) { + /* acknowledge the interrupt */ + wr32(E1000_TSICR, E1000_TSICR_TXTS); + /* retrieve hardware timestamp */ + schedule_work(&adapter->ptp_tx_work); + } + } +#endif /* CONFIG_IGB_PTP */ + wr32(E1000_EIMS, adapter->eims_other); return IRQ_HANDLED; @@ -5002,102 +4963,43 @@ static int igb_notify_dca(struct notifier_block *nb, unsigned long event, static int igb_vf_configure(struct igb_adapter *adapter, int vf) { unsigned char mac_addr[ETH_ALEN]; - struct pci_dev *pdev = adapter->pdev; - struct e1000_hw *hw = &adapter->hw; - struct pci_dev *pvfdev; - unsigned int device_id; - u16 thisvf_devfn; eth_random_addr(mac_addr); igb_set_vf_mac(adapter, vf, mac_addr); - switch (adapter->hw.mac.type) { - case e1000_82576: - device_id = IGB_82576_VF_DEV_ID; - /* VF Stride for 82576 is 2 */ - thisvf_devfn = (pdev->devfn + 0x80 + (vf << 1)) | - (pdev->devfn & 1); - break; - case e1000_i350: - device_id = IGB_I350_VF_DEV_ID; - /* VF Stride for I350 is 4 */ - thisvf_devfn = (pdev->devfn + 0x80 + (vf << 2)) | - (pdev->devfn & 3); - break; - default: - device_id = 0; - thisvf_devfn = 0; - break; - } - - pvfdev = pci_get_device(hw->vendor_id, device_id, NULL); - while (pvfdev) { - if (pvfdev->devfn == thisvf_devfn) - break; - pvfdev = pci_get_device(hw->vendor_id, - device_id, pvfdev); - } - - if (pvfdev) - adapter->vf_data[vf].vfdev = pvfdev; - else - dev_err(&pdev->dev, - "Couldn't find pci dev ptr for VF %4.4x\n", - thisvf_devfn); - return pvfdev != NULL; + return 0; } -static int igb_find_enabled_vfs(struct igb_adapter *adapter) +static bool igb_vfs_are_assigned(struct igb_adapter *adapter) { - struct e1000_hw *hw = &adapter->hw; struct pci_dev *pdev = adapter->pdev; - struct pci_dev *pvfdev; - u16 vf_devfn = 0; - u16 vf_stride; - unsigned int device_id; - int vfs_found = 0; + struct pci_dev *vfdev; + int dev_id; switch (adapter->hw.mac.type) { case e1000_82576: - device_id = IGB_82576_VF_DEV_ID; - /* VF Stride for 82576 is 2 */ - vf_stride = 2; + dev_id = IGB_82576_VF_DEV_ID; break; case e1000_i350: - device_id = IGB_I350_VF_DEV_ID; - /* VF Stride for I350 is 4 */ - vf_stride = 4; + dev_id = IGB_I350_VF_DEV_ID; break; default: - device_id = 0; - vf_stride = 0; - break; - } - - vf_devfn = pdev->devfn + 0x80; - pvfdev = pci_get_device(hw->vendor_id, device_id, NULL); - while (pvfdev) { - if (pvfdev->devfn == vf_devfn && - (pvfdev->bus->number >= pdev->bus->number)) - vfs_found++; - vf_devfn += vf_stride; - pvfdev = pci_get_device(hw->vendor_id, - device_id, pvfdev); + return false; } - return vfs_found; -} - -static int igb_check_vf_assignment(struct igb_adapter *adapter) -{ - int i; - for (i = 0; i < adapter->vfs_allocated_count; i++) { - if (adapter->vf_data[i].vfdev) { - if (adapter->vf_data[i].vfdev->dev_flags & - PCI_DEV_FLAGS_ASSIGNED) + /* loop through all the VFs to see if we own any that are assigned */ + vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL); + while (vfdev) { + /* if we don't own it we don't care */ + if (vfdev->is_virtfn && vfdev->physfn == pdev) { + /* if it is assigned we cannot release it */ + if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) return true; } + + vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev); } + return false; } @@ -5643,6 +5545,19 @@ static irqreturn_t igb_intr_msi(int irq, void *data) mod_timer(&adapter->watchdog_timer, jiffies + 1); } +#ifdef CONFIG_IGB_PTP + if (icr & E1000_ICR_TS) { + u32 tsicr = rd32(E1000_TSICR); + + if (tsicr & E1000_TSICR_TXTS) { + /* acknowledge the interrupt */ + wr32(E1000_TSICR, E1000_TSICR_TXTS); + /* retrieve hardware timestamp */ + schedule_work(&adapter->ptp_tx_work); + } + } +#endif /* CONFIG_IGB_PTP */ + napi_schedule(&q_vector->napi); return IRQ_HANDLED; @@ -5684,6 +5599,19 @@ static irqreturn_t igb_intr(int irq, void *data) mod_timer(&adapter->watchdog_timer, jiffies + 1); } +#ifdef CONFIG_IGB_PTP + if (icr & E1000_ICR_TS) { + u32 tsicr = rd32(E1000_TSICR); + + if (tsicr & E1000_TSICR_TXTS) { + /* acknowledge the interrupt */ + wr32(E1000_TSICR, E1000_TSICR_TXTS); + /* retrieve hardware timestamp */ + schedule_work(&adapter->ptp_tx_work); + } + } +#endif /* CONFIG_IGB_PTP */ + napi_schedule(&q_vector->napi); return IRQ_HANDLED; @@ -5743,37 +5671,6 @@ static int igb_poll(struct napi_struct *napi, int budget) return 0; } -#ifdef CONFIG_IGB_PTP -/** - * igb_tx_hwtstamp - utility function which checks for TX time stamp - * @q_vector: pointer to q_vector containing needed info - * @buffer: pointer to igb_tx_buffer structure - * - * If we were asked to do hardware stamping and such a time stamp is - * available, then it must have been for this skb here because we only - * allow only one such packet into the queue. - */ -static void igb_tx_hwtstamp(struct igb_q_vector *q_vector, - struct igb_tx_buffer *buffer_info) -{ - struct igb_adapter *adapter = q_vector->adapter; - struct e1000_hw *hw = &adapter->hw; - struct skb_shared_hwtstamps shhwtstamps; - u64 regval; - - /* if skb does not support hw timestamp or TX stamp not valid exit */ - if (likely(!(buffer_info->tx_flags & IGB_TX_FLAGS_TSTAMP)) || - !(rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID)) - return; - - regval = rd32(E1000_TXSTMPL); - regval |= (u64)rd32(E1000_TXSTMPH) << 32; - - igb_systim_to_hwtstamp(adapter, &shhwtstamps, regval); - skb_tstamp_tx(buffer_info->skb, &shhwtstamps); -} - -#endif /** * igb_clean_tx_irq - Reclaim resources after transmit completes * @q_vector: pointer to q_vector containing needed info @@ -5785,7 +5682,7 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) struct igb_adapter *adapter = q_vector->adapter; struct igb_ring *tx_ring = q_vector->tx.ring; struct igb_tx_buffer *tx_buffer; - union e1000_adv_tx_desc *tx_desc, *eop_desc; + union e1000_adv_tx_desc *tx_desc; unsigned int total_bytes = 0, total_packets = 0; unsigned int budget = q_vector->tx.work_limit; unsigned int i = tx_ring->next_to_clean; @@ -5797,16 +5694,16 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) tx_desc = IGB_TX_DESC(tx_ring, i); i -= tx_ring->count; - for (; budget; budget--) { - eop_desc = tx_buffer->next_to_watch; - - /* prevent any other reads prior to eop_desc */ - rmb(); + do { + union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; /* if next_to_watch is not set then there is no work pending */ if (!eop_desc) break; + /* prevent any other reads prior to eop_desc */ + rmb(); + /* if DD is not set pending work has not been completed */ if (!(eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD))) break; @@ -5818,25 +5715,21 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) total_bytes += tx_buffer->bytecount; total_packets += tx_buffer->gso_segs; -#ifdef CONFIG_IGB_PTP - /* retrieve hardware timestamp */ - igb_tx_hwtstamp(q_vector, tx_buffer); - -#endif /* free the skb */ dev_kfree_skb_any(tx_buffer->skb); - tx_buffer->skb = NULL; /* unmap skb header data */ dma_unmap_single(tx_ring->dev, - tx_buffer->dma, - tx_buffer->length, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), DMA_TO_DEVICE); + /* clear tx_buffer data */ + tx_buffer->skb = NULL; + dma_unmap_len_set(tx_buffer, len, 0); + /* clear last DMA location and unmap remaining buffers */ while (tx_desc != eop_desc) { - tx_buffer->dma = 0; - tx_buffer++; tx_desc++; i++; @@ -5847,17 +5740,15 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) } /* unmap any remaining paged data */ - if (tx_buffer->dma) { + if (dma_unmap_len(tx_buffer, len)) { dma_unmap_page(tx_ring->dev, - tx_buffer->dma, - tx_buffer->length, + dma_unmap_addr(tx_buffer, dma), + dma_unmap_len(tx_buffer, len), DMA_TO_DEVICE); + dma_unmap_len_set(tx_buffer, len, 0); } } - /* clear last DMA location */ - tx_buffer->dma = 0; - /* move us one more past the eop_desc for start of next pkt */ tx_buffer++; tx_desc++; @@ -5867,7 +5758,13 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) tx_buffer = tx_ring->tx_buffer_info; tx_desc = IGB_TX_DESC(tx_ring, 0); } - } + + /* issue prefetch for next Tx descriptor */ + prefetch(tx_desc); + + /* update budget accounting */ + budget--; + } while (likely(budget)); netdev_tx_completed_queue(txring_txq(tx_ring), total_packets, total_bytes); @@ -5883,12 +5780,10 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) if (test_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags)) { struct e1000_hw *hw = &adapter->hw; - eop_desc = tx_buffer->next_to_watch; - /* Detect a transmit hang in hardware, this serializes the * check with the clearing of time_stamp and movement of i */ clear_bit(IGB_RING_FLAG_TX_DETECT_HANG, &tx_ring->flags); - if (eop_desc && + if (tx_buffer->next_to_watch && time_after(jiffies, tx_buffer->time_stamp + (adapter->tx_timeout_factor * HZ)) && !(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) { @@ -5912,9 +5807,9 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector) tx_ring->next_to_use, tx_ring->next_to_clean, tx_buffer->time_stamp, - eop_desc, + tx_buffer->next_to_watch, jiffies, - eop_desc->wb.status); + tx_buffer->next_to_watch->wb.status); netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); @@ -5994,47 +5889,6 @@ static inline void igb_rx_hash(struct igb_ring *ring, skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); } -#ifdef CONFIG_IGB_PTP -static void igb_rx_hwtstamp(struct igb_q_vector *q_vector, - union e1000_adv_rx_desc *rx_desc, - struct sk_buff *skb) -{ - struct igb_adapter *adapter = q_vector->adapter; - struct e1000_hw *hw = &adapter->hw; - u64 regval; - - if (!igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP | - E1000_RXDADV_STAT_TS)) - return; - - /* - * If this bit is set, then the RX registers contain the time stamp. No - * other packet will be time stamped until we read these registers, so - * read the registers to make them available again. Because only one - * packet can be time stamped at a time, we know that the register - * values must belong to this one here and therefore we don't need to - * compare any of the additional attributes stored for it. - * - * If nothing went wrong, then it should have a shared tx_flags that we - * can turn into a skb_shared_hwtstamps. - */ - if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) { - u32 *stamp = (u32 *)skb->data; - regval = le32_to_cpu(*(stamp + 2)); - regval |= (u64)le32_to_cpu(*(stamp + 3)) << 32; - skb_pull(skb, IGB_TS_HDR_LEN); - } else { - if(!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID)) - return; - - regval = rd32(E1000_RXSTMPL); - regval |= (u64)rd32(E1000_RXSTMPH) << 32; - } - - igb_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); -} - -#endif static void igb_rx_vlan(struct igb_ring *ring, union e1000_adv_rx_desc *rx_desc, struct sk_buff *skb) @@ -6146,8 +6000,8 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget) } #ifdef CONFIG_IGB_PTP - igb_rx_hwtstamp(q_vector, rx_desc, skb); -#endif + igb_ptp_rx_hwtstamp(q_vector, rx_desc, skb); +#endif /* CONFIG_IGB_PTP */ igb_rx_hash(rx_ring, rx_desc, skb); igb_rx_checksum(rx_ring, rx_desc, skb); igb_rx_vlan(rx_ring, rx_desc, skb); @@ -6341,181 +6195,6 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) } /** - * igb_hwtstamp_ioctl - control hardware time stamping - * @netdev: - * @ifreq: - * @cmd: - * - * Outgoing time stamping can be enabled and disabled. Play nice and - * disable it when requested, although it shouldn't case any overhead - * when no packet needs it. At most one packet in the queue may be - * marked for time stamping, otherwise it would be impossible to tell - * for sure to which packet the hardware time stamp belongs. - * - * Incoming time stamping has to be configured via the hardware - * filters. Not all combinations are supported, in particular event - * type has to be specified. Matching the kind of event packet is - * not supported, with the exception of "all V2 events regardless of - * level 2 or 4". - * - **/ -static int igb_hwtstamp_ioctl(struct net_device *netdev, - struct ifreq *ifr, int cmd) -{ - struct igb_adapter *adapter = netdev_priv(netdev); - struct e1000_hw *hw = &adapter->hw; - struct hwtstamp_config config; - u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED; - u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; - u32 tsync_rx_cfg = 0; - bool is_l4 = false; - bool is_l2 = false; - u32 regval; - - if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) - return -EFAULT; - - /* reserved for future extensions */ - if (config.flags) - return -EINVAL; - - switch (config.tx_type) { - case HWTSTAMP_TX_OFF: - tsync_tx_ctl = 0; - case HWTSTAMP_TX_ON: - break; - default: - return -ERANGE; - } - - switch (config.rx_filter) { - case HWTSTAMP_FILTER_NONE: - tsync_rx_ctl = 0; - break; - case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: - case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: - case HWTSTAMP_FILTER_ALL: - /* - * register TSYNCRXCFG must be set, therefore it is not - * possible to time stamp both Sync and Delay_Req messages - * => fall back to time stamping all packets - */ - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL; - config.rx_filter = HWTSTAMP_FILTER_ALL; - break; - case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; - tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE; - is_l4 = true; - break; - case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; - tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE; - is_l4 = true; - break; - case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; - tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE; - is_l2 = true; - is_l4 = true; - config.rx_filter = HWTSTAMP_FILTER_SOME; - break; - case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: - case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; - tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE; - is_l2 = true; - is_l4 = true; - config.rx_filter = HWTSTAMP_FILTER_SOME; - break; - case HWTSTAMP_FILTER_PTP_V2_EVENT: - case HWTSTAMP_FILTER_PTP_V2_SYNC: - case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2; - config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; - is_l2 = true; - is_l4 = true; - break; - default: - return -ERANGE; - } - - if (hw->mac.type == e1000_82575) { - if (tsync_rx_ctl | tsync_tx_ctl) - return -EINVAL; - return 0; - } - - /* - * Per-packet timestamping only works if all packets are - * timestamped, so enable timestamping in all packets as - * long as one rx filter was configured. - */ - if ((hw->mac.type >= e1000_82580) && tsync_rx_ctl) { - tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; - tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL; - } - - /* enable/disable TX */ - regval = rd32(E1000_TSYNCTXCTL); - regval &= ~E1000_TSYNCTXCTL_ENABLED; - regval |= tsync_tx_ctl; - wr32(E1000_TSYNCTXCTL, regval); - - /* enable/disable RX */ - regval = rd32(E1000_TSYNCRXCTL); - regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK); - regval |= tsync_rx_ctl; - wr32(E1000_TSYNCRXCTL, regval); - - /* define which PTP packets are time stamped */ - wr32(E1000_TSYNCRXCFG, tsync_rx_cfg); - - /* define ethertype filter for timestamped packets */ - if (is_l2) - wr32(E1000_ETQF(3), - (E1000_ETQF_FILTER_ENABLE | /* enable filter */ - E1000_ETQF_1588 | /* enable timestamping */ - ETH_P_1588)); /* 1588 eth protocol type */ - else - wr32(E1000_ETQF(3), 0); - -#define PTP_PORT 319 - /* L4 Queue Filter[3]: filter by destination port and protocol */ - if (is_l4) { - u32 ftqf = (IPPROTO_UDP /* UDP */ - | E1000_FTQF_VF_BP /* VF not compared */ - | E1000_FTQF_1588_TIME_STAMP /* Enable Timestamping */ - | E1000_FTQF_MASK); /* mask all inputs */ - ftqf &= ~E1000_FTQF_MASK_PROTO_BP; /* enable protocol check */ - - wr32(E1000_IMIR(3), htons(PTP_PORT)); - wr32(E1000_IMIREXT(3), - (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP)); - if (hw->mac.type == e1000_82576) { - /* enable source port check */ - wr32(E1000_SPQF(3), htons(PTP_PORT)); - ftqf &= ~E1000_FTQF_MASK_SOURCE_PORT_BP; - } - wr32(E1000_FTQF(3), ftqf); - } else { - wr32(E1000_FTQF(3), E1000_FTQF_MASK); - } - wrfl(); - - adapter->hwtstamp_config = config; - - /* clear TX/RX time stamp registers, just to be sure */ - regval = rd32(E1000_TXSTMPH); - regval = rd32(E1000_RXSTMPH); - - return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? - -EFAULT : 0; -} - -/** * igb_ioctl - * @netdev: * @ifreq: @@ -6528,8 +6207,10 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) case SIOCGMIIREG: case SIOCSMIIREG: return igb_mii_ioctl(netdev, ifr, cmd); +#ifdef CONFIG_IGB_PTP case SIOCSHWTSTAMP: - return igb_hwtstamp_ioctl(netdev, ifr, cmd); + return igb_ptp_hwtstamp_ioctl(netdev, ifr, cmd); +#endif /* CONFIG_IGB_PTP */ default: return -EOPNOTSUPP; } @@ -6667,6 +6348,10 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u32 spd, u8 dplx) default: goto err_inval; } + + /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */ + adapter->hw.phy.mdix = AUTO_ALL_MODES; + return 0; err_inval: diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index c846ea9131a3..ee21445157a3 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -69,22 +69,22 @@ * 2^40 * 10^-9 / 60 = 18.3 minutes. */ -#define IGB_OVERFLOW_PERIOD (HZ * 60 * 9) -#define INCPERIOD_82576 (1 << E1000_TIMINCA_16NS_SHIFT) -#define INCVALUE_82576_MASK ((1 << E1000_TIMINCA_16NS_SHIFT) - 1) -#define INCVALUE_82576 (16 << IGB_82576_TSYNC_SHIFT) -#define IGB_NBITS_82580 40 +#define IGB_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 9) +#define INCPERIOD_82576 (1 << E1000_TIMINCA_16NS_SHIFT) +#define INCVALUE_82576_MASK ((1 << E1000_TIMINCA_16NS_SHIFT) - 1) +#define INCVALUE_82576 (16 << IGB_82576_TSYNC_SHIFT) +#define IGB_NBITS_82580 40 /* * SYSTIM read access for the 82576 */ -static cycle_t igb_82576_systim_read(const struct cyclecounter *cc) +static cycle_t igb_ptp_read_82576(const struct cyclecounter *cc) { - u64 val; - u32 lo, hi; struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc); struct e1000_hw *hw = &igb->hw; + u64 val; + u32 lo, hi; lo = rd32(E1000_SYSTIML); hi = rd32(E1000_SYSTIMH); @@ -99,12 +99,12 @@ static cycle_t igb_82576_systim_read(const struct cyclecounter *cc) * SYSTIM read access for the 82580 */ -static cycle_t igb_82580_systim_read(const struct cyclecounter *cc) +static cycle_t igb_ptp_read_82580(const struct cyclecounter *cc) { - u64 val; - u32 lo, hi, jk; struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc); struct e1000_hw *hw = &igb->hw; + u64 val; + u32 lo, hi, jk; /* * The timestamp latches on lowest register read. For the 82580 @@ -122,16 +122,101 @@ static cycle_t igb_82580_systim_read(const struct cyclecounter *cc) } /* + * SYSTIM read access for I210/I211 + */ + +static void igb_ptp_read_i210(struct igb_adapter *adapter, struct timespec *ts) +{ + struct e1000_hw *hw = &adapter->hw; + u32 sec, nsec, jk; + + /* + * The timestamp latches on lowest register read. For I210/I211, the + * lowest register is SYSTIMR. Since we only need to provide nanosecond + * resolution, we can ignore it. + */ + jk = rd32(E1000_SYSTIMR); + nsec = rd32(E1000_SYSTIML); + sec = rd32(E1000_SYSTIMH); + + ts->tv_sec = sec; + ts->tv_nsec = nsec; +} + +static void igb_ptp_write_i210(struct igb_adapter *adapter, + const struct timespec *ts) +{ + struct e1000_hw *hw = &adapter->hw; + + /* + * Writing the SYSTIMR register is not necessary as it only provides + * sub-nanosecond resolution. + */ + wr32(E1000_SYSTIML, ts->tv_nsec); + wr32(E1000_SYSTIMH, ts->tv_sec); +} + +/** + * igb_ptp_systim_to_hwtstamp - convert system time value to hw timestamp + * @adapter: board private structure + * @hwtstamps: timestamp structure to update + * @systim: unsigned 64bit system time value. + * + * We need to convert the system time value stored in the RX/TXSTMP registers + * into a hwtstamp which can be used by the upper level timestamping functions. + * + * The 'tmreg_lock' spinlock is used to protect the consistency of the + * system time value. This is needed because reading the 64 bit time + * value involves reading two (or three) 32 bit registers. The first + * read latches the value. Ditto for writing. + * + * In addition, here have extended the system time with an overflow + * counter in software. + **/ +static void igb_ptp_systim_to_hwtstamp(struct igb_adapter *adapter, + struct skb_shared_hwtstamps *hwtstamps, + u64 systim) +{ + unsigned long flags; + u64 ns; + + switch (adapter->hw.mac.type) { + case e1000_82576: + case e1000_82580: + case e1000_i350: + spin_lock_irqsave(&adapter->tmreg_lock, flags); + + ns = timecounter_cyc2time(&adapter->tc, systim); + + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + + memset(hwtstamps, 0, sizeof(*hwtstamps)); + hwtstamps->hwtstamp = ns_to_ktime(ns); + break; + case e1000_i210: + case e1000_i211: + memset(hwtstamps, 0, sizeof(*hwtstamps)); + /* Upper 32 bits contain s, lower 32 bits contain ns. */ + hwtstamps->hwtstamp = ktime_set(systim >> 32, + systim & 0xFFFFFFFF); + break; + default: + break; + } +} + +/* * PTP clock operations */ -static int ptp_82576_adjfreq(struct ptp_clock_info *ptp, s32 ppb) +static int igb_ptp_adjfreq_82576(struct ptp_clock_info *ptp, s32 ppb) { + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + struct e1000_hw *hw = &igb->hw; + int neg_adj = 0; u64 rate; u32 incvalue; - int neg_adj = 0; - struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps); - struct e1000_hw *hw = &igb->hw; if (ppb < 0) { neg_adj = 1; @@ -153,13 +238,14 @@ static int ptp_82576_adjfreq(struct ptp_clock_info *ptp, s32 ppb) return 0; } -static int ptp_82580_adjfreq(struct ptp_clock_info *ptp, s32 ppb) +static int igb_ptp_adjfreq_82580(struct ptp_clock_info *ptp, s32 ppb) { + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + struct e1000_hw *hw = &igb->hw; + int neg_adj = 0; u64 rate; u32 inca; - int neg_adj = 0; - struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps); - struct e1000_hw *hw = &igb->hw; if (ppb < 0) { neg_adj = 1; @@ -178,11 +264,12 @@ static int ptp_82580_adjfreq(struct ptp_clock_info *ptp, s32 ppb) return 0; } -static int igb_adjtime(struct ptp_clock_info *ptp, s64 delta) +static int igb_ptp_adjtime_82576(struct ptp_clock_info *ptp, s64 delta) { - s64 now; + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); unsigned long flags; - struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps); + s64 now; spin_lock_irqsave(&igb->tmreg_lock, flags); @@ -195,12 +282,32 @@ static int igb_adjtime(struct ptp_clock_info *ptp, s64 delta) return 0; } -static int igb_gettime(struct ptp_clock_info *ptp, struct timespec *ts) +static int igb_ptp_adjtime_i210(struct ptp_clock_info *ptp, s64 delta) { + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + unsigned long flags; + struct timespec now, then = ns_to_timespec(delta); + + spin_lock_irqsave(&igb->tmreg_lock, flags); + + igb_ptp_read_i210(igb, &now); + now = timespec_add(now, then); + igb_ptp_write_i210(igb, (const struct timespec *)&now); + + spin_unlock_irqrestore(&igb->tmreg_lock, flags); + + return 0; +} + +static int igb_ptp_gettime_82576(struct ptp_clock_info *ptp, + struct timespec *ts) +{ + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + unsigned long flags; u64 ns; u32 remainder; - unsigned long flags; - struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps); spin_lock_irqsave(&igb->tmreg_lock, flags); @@ -214,11 +321,29 @@ static int igb_gettime(struct ptp_clock_info *ptp, struct timespec *ts) return 0; } -static int igb_settime(struct ptp_clock_info *ptp, const struct timespec *ts) +static int igb_ptp_gettime_i210(struct ptp_clock_info *ptp, + struct timespec *ts) { - u64 ns; + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); unsigned long flags; - struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps); + + spin_lock_irqsave(&igb->tmreg_lock, flags); + + igb_ptp_read_i210(igb, ts); + + spin_unlock_irqrestore(&igb->tmreg_lock, flags); + + return 0; +} + +static int igb_ptp_settime_82576(struct ptp_clock_info *ptp, + const struct timespec *ts) +{ + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + unsigned long flags; + u64 ns; ns = ts->tv_sec * 1000000000ULL; ns += ts->tv_nsec; @@ -232,77 +357,369 @@ static int igb_settime(struct ptp_clock_info *ptp, const struct timespec *ts) return 0; } -static int ptp_82576_enable(struct ptp_clock_info *ptp, - struct ptp_clock_request *rq, int on) +static int igb_ptp_settime_i210(struct ptp_clock_info *ptp, + const struct timespec *ts) { - return -EOPNOTSUPP; + struct igb_adapter *igb = container_of(ptp, struct igb_adapter, + ptp_caps); + unsigned long flags; + + spin_lock_irqsave(&igb->tmreg_lock, flags); + + igb_ptp_write_i210(igb, ts); + + spin_unlock_irqrestore(&igb->tmreg_lock, flags); + + return 0; } -static int ptp_82580_enable(struct ptp_clock_info *ptp, - struct ptp_clock_request *rq, int on) +static int igb_ptp_enable(struct ptp_clock_info *ptp, + struct ptp_clock_request *rq, int on) { return -EOPNOTSUPP; } -static void igb_overflow_check(struct work_struct *work) +/** + * igb_ptp_tx_work + * @work: pointer to work struct + * + * This work function polls the TSYNCTXCTL valid bit to determine when a + * timestamp has been taken for the current stored skb. + */ +void igb_ptp_tx_work(struct work_struct *work) +{ + struct igb_adapter *adapter = container_of(work, struct igb_adapter, + ptp_tx_work); + struct e1000_hw *hw = &adapter->hw; + u32 tsynctxctl; + + if (!adapter->ptp_tx_skb) + return; + + tsynctxctl = rd32(E1000_TSYNCTXCTL); + if (tsynctxctl & E1000_TSYNCTXCTL_VALID) + igb_ptp_tx_hwtstamp(adapter); + else + /* reschedule to check later */ + schedule_work(&adapter->ptp_tx_work); +} + +static void igb_ptp_overflow_check(struct work_struct *work) { - struct timespec ts; struct igb_adapter *igb = - container_of(work, struct igb_adapter, overflow_work.work); + container_of(work, struct igb_adapter, ptp_overflow_work.work); + struct timespec ts; - igb_gettime(&igb->caps, &ts); + igb->ptp_caps.gettime(&igb->ptp_caps, &ts); pr_debug("igb overflow check at %ld.%09lu\n", ts.tv_sec, ts.tv_nsec); - schedule_delayed_work(&igb->overflow_work, IGB_OVERFLOW_PERIOD); + schedule_delayed_work(&igb->ptp_overflow_work, + IGB_SYSTIM_OVERFLOW_PERIOD); +} + +/** + * igb_ptp_tx_hwtstamp - utility function which checks for TX time stamp + * @adapter: Board private structure. + * + * If we were asked to do hardware stamping and such a time stamp is + * available, then it must have been for this skb here because we only + * allow only one such packet into the queue. + */ +void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter) +{ + struct e1000_hw *hw = &adapter->hw; + struct skb_shared_hwtstamps shhwtstamps; + u64 regval; + + regval = rd32(E1000_TXSTMPL); + regval |= (u64)rd32(E1000_TXSTMPH) << 32; + + igb_ptp_systim_to_hwtstamp(adapter, &shhwtstamps, regval); + skb_tstamp_tx(adapter->ptp_tx_skb, &shhwtstamps); + dev_kfree_skb_any(adapter->ptp_tx_skb); + adapter->ptp_tx_skb = NULL; +} + +void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector, + union e1000_adv_rx_desc *rx_desc, + struct sk_buff *skb) +{ + struct igb_adapter *adapter = q_vector->adapter; + struct e1000_hw *hw = &adapter->hw; + u64 regval; + + if (!igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP | + E1000_RXDADV_STAT_TS)) + return; + + /* + * If this bit is set, then the RX registers contain the time stamp. No + * other packet will be time stamped until we read these registers, so + * read the registers to make them available again. Because only one + * packet can be time stamped at a time, we know that the register + * values must belong to this one here and therefore we don't need to + * compare any of the additional attributes stored for it. + * + * If nothing went wrong, then it should have a shared tx_flags that we + * can turn into a skb_shared_hwtstamps. + */ + if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) { + u32 *stamp = (u32 *)skb->data; + regval = le32_to_cpu(*(stamp + 2)); + regval |= (u64)le32_to_cpu(*(stamp + 3)) << 32; + skb_pull(skb, IGB_TS_HDR_LEN); + } else { + if (!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID)) + return; + + regval = rd32(E1000_RXSTMPL); + regval |= (u64)rd32(E1000_RXSTMPH) << 32; + } + + igb_ptp_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); +} + +/** + * igb_ptp_hwtstamp_ioctl - control hardware time stamping + * @netdev: + * @ifreq: + * @cmd: + * + * Outgoing time stamping can be enabled and disabled. Play nice and + * disable it when requested, although it shouldn't case any overhead + * when no packet needs it. At most one packet in the queue may be + * marked for time stamping, otherwise it would be impossible to tell + * for sure to which packet the hardware time stamp belongs. + * + * Incoming time stamping has to be configured via the hardware + * filters. Not all combinations are supported, in particular event + * type has to be specified. Matching the kind of event packet is + * not supported, with the exception of "all V2 events regardless of + * level 2 or 4". + * + **/ +int igb_ptp_hwtstamp_ioctl(struct net_device *netdev, + struct ifreq *ifr, int cmd) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + struct e1000_hw *hw = &adapter->hw; + struct hwtstamp_config config; + u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED; + u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; + u32 tsync_rx_cfg = 0; + bool is_l4 = false; + bool is_l2 = false; + u32 regval; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + /* reserved for future extensions */ + if (config.flags) + return -EINVAL; + + switch (config.tx_type) { + case HWTSTAMP_TX_OFF: + tsync_tx_ctl = 0; + case HWTSTAMP_TX_ON: + break; + default: + return -ERANGE; + } + + switch (config.rx_filter) { + case HWTSTAMP_FILTER_NONE: + tsync_rx_ctl = 0; + break; + case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_ALL: + /* + * register TSYNCRXCFG must be set, therefore it is not + * possible to time stamp both Sync and Delay_Req messages + * => fall back to time stamping all packets + */ + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL; + config.rx_filter = HWTSTAMP_FILTER_ALL; + break; + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; + tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE; + is_l4 = true; + break; + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L4_V1; + tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE; + is_l4 = true; + break; + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; + tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE; + is_l2 = true; + is_l4 = true; + config.rx_filter = HWTSTAMP_FILTER_SOME; + break; + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_L2_L4_V2; + tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE; + is_l2 = true; + is_l4 = true; + config.rx_filter = HWTSTAMP_FILTER_SOME; + break; + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_EVENT_V2; + config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; + is_l2 = true; + is_l4 = true; + break; + default: + return -ERANGE; + } + + if (hw->mac.type == e1000_82575) { + if (tsync_rx_ctl | tsync_tx_ctl) + return -EINVAL; + return 0; + } + + /* + * Per-packet timestamping only works if all packets are + * timestamped, so enable timestamping in all packets as + * long as one rx filter was configured. + */ + if ((hw->mac.type >= e1000_82580) && tsync_rx_ctl) { + tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; + tsync_rx_ctl |= E1000_TSYNCRXCTL_TYPE_ALL; + + if ((hw->mac.type == e1000_i210) || + (hw->mac.type == e1000_i211)) { + regval = rd32(E1000_RXPBS); + regval |= E1000_RXPBS_CFG_TS_EN; + wr32(E1000_RXPBS, regval); + } + } + + /* enable/disable TX */ + regval = rd32(E1000_TSYNCTXCTL); + regval &= ~E1000_TSYNCTXCTL_ENABLED; + regval |= tsync_tx_ctl; + wr32(E1000_TSYNCTXCTL, regval); + + /* enable/disable RX */ + regval = rd32(E1000_TSYNCRXCTL); + regval &= ~(E1000_TSYNCRXCTL_ENABLED | E1000_TSYNCRXCTL_TYPE_MASK); + regval |= tsync_rx_ctl; + wr32(E1000_TSYNCRXCTL, regval); + + /* define which PTP packets are time stamped */ + wr32(E1000_TSYNCRXCFG, tsync_rx_cfg); + + /* define ethertype filter for timestamped packets */ + if (is_l2) + wr32(E1000_ETQF(3), + (E1000_ETQF_FILTER_ENABLE | /* enable filter */ + E1000_ETQF_1588 | /* enable timestamping */ + ETH_P_1588)); /* 1588 eth protocol type */ + else + wr32(E1000_ETQF(3), 0); + +#define PTP_PORT 319 + /* L4 Queue Filter[3]: filter by destination port and protocol */ + if (is_l4) { + u32 ftqf = (IPPROTO_UDP /* UDP */ + | E1000_FTQF_VF_BP /* VF not compared */ + | E1000_FTQF_1588_TIME_STAMP /* Enable Timestamping */ + | E1000_FTQF_MASK); /* mask all inputs */ + ftqf &= ~E1000_FTQF_MASK_PROTO_BP; /* enable protocol check */ + + wr32(E1000_IMIR(3), htons(PTP_PORT)); + wr32(E1000_IMIREXT(3), + (E1000_IMIREXT_SIZE_BP | E1000_IMIREXT_CTRL_BP)); + if (hw->mac.type == e1000_82576) { + /* enable source port check */ + wr32(E1000_SPQF(3), htons(PTP_PORT)); + ftqf &= ~E1000_FTQF_MASK_SOURCE_PORT_BP; + } + wr32(E1000_FTQF(3), ftqf); + } else { + wr32(E1000_FTQF(3), E1000_FTQF_MASK); + } + wrfl(); + + /* clear TX/RX time stamp registers, just to be sure */ + regval = rd32(E1000_TXSTMPL); + regval = rd32(E1000_TXSTMPH); + regval = rd32(E1000_RXSTMPL); + regval = rd32(E1000_RXSTMPH); + + return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? + -EFAULT : 0; } void igb_ptp_init(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; + struct net_device *netdev = adapter->netdev; switch (hw->mac.type) { - case e1000_i210: - case e1000_i211: - case e1000_i350: + case e1000_82576: + snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr); + adapter->ptp_caps.owner = THIS_MODULE; + adapter->ptp_caps.max_adj = 1000000000; + adapter->ptp_caps.n_ext_ts = 0; + adapter->ptp_caps.pps = 0; + adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82576; + adapter->ptp_caps.adjtime = igb_ptp_adjtime_82576; + adapter->ptp_caps.gettime = igb_ptp_gettime_82576; + adapter->ptp_caps.settime = igb_ptp_settime_82576; + adapter->ptp_caps.enable = igb_ptp_enable; + adapter->cc.read = igb_ptp_read_82576; + adapter->cc.mask = CLOCKSOURCE_MASK(64); + adapter->cc.mult = 1; + adapter->cc.shift = IGB_82576_TSYNC_SHIFT; + /* Dial the nominal frequency. */ + wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576); + break; case e1000_82580: - adapter->caps.owner = THIS_MODULE; - strcpy(adapter->caps.name, "igb-82580"); - adapter->caps.max_adj = 62499999; - adapter->caps.n_ext_ts = 0; - adapter->caps.pps = 0; - adapter->caps.adjfreq = ptp_82580_adjfreq; - adapter->caps.adjtime = igb_adjtime; - adapter->caps.gettime = igb_gettime; - adapter->caps.settime = igb_settime; - adapter->caps.enable = ptp_82580_enable; - adapter->cc.read = igb_82580_systim_read; - adapter->cc.mask = CLOCKSOURCE_MASK(IGB_NBITS_82580); - adapter->cc.mult = 1; - adapter->cc.shift = 0; + case e1000_i350: + snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr); + adapter->ptp_caps.owner = THIS_MODULE; + adapter->ptp_caps.max_adj = 62499999; + adapter->ptp_caps.n_ext_ts = 0; + adapter->ptp_caps.pps = 0; + adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82580; + adapter->ptp_caps.adjtime = igb_ptp_adjtime_82576; + adapter->ptp_caps.gettime = igb_ptp_gettime_82576; + adapter->ptp_caps.settime = igb_ptp_settime_82576; + adapter->ptp_caps.enable = igb_ptp_enable; + adapter->cc.read = igb_ptp_read_82580; + adapter->cc.mask = CLOCKSOURCE_MASK(IGB_NBITS_82580); + adapter->cc.mult = 1; + adapter->cc.shift = 0; /* Enable the timer functions by clearing bit 31. */ wr32(E1000_TSAUXC, 0x0); break; - - case e1000_82576: - adapter->caps.owner = THIS_MODULE; - strcpy(adapter->caps.name, "igb-82576"); - adapter->caps.max_adj = 1000000000; - adapter->caps.n_ext_ts = 0; - adapter->caps.pps = 0; - adapter->caps.adjfreq = ptp_82576_adjfreq; - adapter->caps.adjtime = igb_adjtime; - adapter->caps.gettime = igb_gettime; - adapter->caps.settime = igb_settime; - adapter->caps.enable = ptp_82576_enable; - adapter->cc.read = igb_82576_systim_read; - adapter->cc.mask = CLOCKSOURCE_MASK(64); - adapter->cc.mult = 1; - adapter->cc.shift = IGB_82576_TSYNC_SHIFT; - /* Dial the nominal frequency. */ - wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576); + case e1000_i210: + case e1000_i211: + snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr); + adapter->ptp_caps.owner = THIS_MODULE; + adapter->ptp_caps.max_adj = 62499999; + adapter->ptp_caps.n_ext_ts = 0; + adapter->ptp_caps.pps = 0; + adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82580; + adapter->ptp_caps.adjtime = igb_ptp_adjtime_i210; + adapter->ptp_caps.gettime = igb_ptp_gettime_i210; + adapter->ptp_caps.settime = igb_ptp_settime_i210; + adapter->ptp_caps.enable = igb_ptp_enable; + /* Enable the timer functions by clearing bit 31. */ + wr32(E1000_TSAUXC, 0x0); break; - default: adapter->ptp_clock = NULL; return; @@ -310,86 +727,114 @@ void igb_ptp_init(struct igb_adapter *adapter) wrfl(); - timecounter_init(&adapter->tc, &adapter->cc, - ktime_to_ns(ktime_get_real())); + spin_lock_init(&adapter->tmreg_lock); + INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work); + + /* Initialize the clock and overflow work for devices that need it. */ + if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) { + struct timespec ts = ktime_to_timespec(ktime_get_real()); - INIT_DELAYED_WORK(&adapter->overflow_work, igb_overflow_check); + igb_ptp_settime_i210(&adapter->ptp_caps, &ts); + } else { + timecounter_init(&adapter->tc, &adapter->cc, + ktime_to_ns(ktime_get_real())); - spin_lock_init(&adapter->tmreg_lock); + INIT_DELAYED_WORK(&adapter->ptp_overflow_work, + igb_ptp_overflow_check); - schedule_delayed_work(&adapter->overflow_work, IGB_OVERFLOW_PERIOD); + schedule_delayed_work(&adapter->ptp_overflow_work, + IGB_SYSTIM_OVERFLOW_PERIOD); + } + + /* Initialize the time sync interrupts for devices that support it. */ + if (hw->mac.type >= e1000_82580) { + wr32(E1000_TSIM, E1000_TSIM_TXTS); + wr32(E1000_IMS, E1000_IMS_TS); + } - adapter->ptp_clock = ptp_clock_register(&adapter->caps); + adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps, + &adapter->pdev->dev); if (IS_ERR(adapter->ptp_clock)) { adapter->ptp_clock = NULL; dev_err(&adapter->pdev->dev, "ptp_clock_register failed\n"); - } else + } else { dev_info(&adapter->pdev->dev, "added PHC on %s\n", adapter->netdev->name); + adapter->flags |= IGB_FLAG_PTP; + } } -void igb_ptp_remove(struct igb_adapter *adapter) +/** + * igb_ptp_stop - Disable PTP device and stop the overflow check. + * @adapter: Board private structure. + * + * This function stops the PTP support and cancels the delayed work. + **/ +void igb_ptp_stop(struct igb_adapter *adapter) { switch (adapter->hw.mac.type) { - case e1000_i211: - case e1000_i210: - case e1000_i350: - case e1000_82580: case e1000_82576: - cancel_delayed_work_sync(&adapter->overflow_work); + case e1000_82580: + case e1000_i350: + cancel_delayed_work_sync(&adapter->ptp_overflow_work); + break; + case e1000_i210: + case e1000_i211: + /* No delayed work to cancel. */ break; default: return; } + cancel_work_sync(&adapter->ptp_tx_work); + if (adapter->ptp_clock) { ptp_clock_unregister(adapter->ptp_clock); dev_info(&adapter->pdev->dev, "removed PHC on %s\n", adapter->netdev->name); + adapter->flags &= ~IGB_FLAG_PTP; } } /** - * igb_systim_to_hwtstamp - convert system time value to hw timestamp - * @adapter: board private structure - * @hwtstamps: timestamp structure to update - * @systim: unsigned 64bit system time value. - * - * We need to convert the system time value stored in the RX/TXSTMP registers - * into a hwtstamp which can be used by the upper level timestamping functions. + * igb_ptp_reset - Re-enable the adapter for PTP following a reset. + * @adapter: Board private structure. * - * The 'tmreg_lock' spinlock is used to protect the consistency of the - * system time value. This is needed because reading the 64 bit time - * value involves reading two (or three) 32 bit registers. The first - * read latches the value. Ditto for writing. - * - * In addition, here have extended the system time with an overflow - * counter in software. + * This function handles the reset work required to re-enable the PTP device. **/ -void igb_systim_to_hwtstamp(struct igb_adapter *adapter, - struct skb_shared_hwtstamps *hwtstamps, - u64 systim) +void igb_ptp_reset(struct igb_adapter *adapter) { - u64 ns; - unsigned long flags; + struct e1000_hw *hw = &adapter->hw; + + if (!(adapter->flags & IGB_FLAG_PTP)) + return; switch (adapter->hw.mac.type) { + case e1000_82576: + /* Dial the nominal frequency. */ + wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576); + break; + case e1000_82580: + case e1000_i350: case e1000_i210: case e1000_i211: - case e1000_i350: - case e1000_82580: - case e1000_82576: + /* Enable the timer functions and interrupts. */ + wr32(E1000_TSAUXC, 0x0); + wr32(E1000_TSIM, E1000_TSIM_TXTS); + wr32(E1000_IMS, E1000_IMS_TS); break; default: + /* No work to do. */ return; } - spin_lock_irqsave(&adapter->tmreg_lock, flags); + /* Re-initialize the timer. */ + if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) { + struct timespec ts = ktime_to_timespec(ktime_get_real()); - ns = timecounter_cyc2time(&adapter->tc, systim); - - spin_unlock_irqrestore(&adapter->tmreg_lock, flags); - - memset(hwtstamps, 0, sizeof(*hwtstamps)); - hwtstamps->hwtstamp = ns_to_ktime(ns); + igb_ptp_settime_i210(&adapter->ptp_caps, &ts); + } else { + timecounter_init(&adapter->tc, &adapter->cc, + ktime_to_ns(ktime_get_real())); + } } |