Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-12-07

This series contains updates to i40e and i40evf only.

Filip modifies the i40e to log link speed change and when the link is
brought up and down.

Mitch replaces i40e_txd_use_count() with a new function which is slightly
faster and better documented so the dim witted can better follow the
code.  Fixes the locking of the service task so that it is actually
done in the service task and not in the scheduling function which calls
the service task.

Jacob, being the busy little beaver he is, provides most of the changes
starting restores a workaround that is still needed in some configurations,
specifically the Ethernet Controller XL710 for 40GbE QSFP+.  Removes
duplicate code and simplifies the i40e_vsi_add_vlan() and
i40e_vsi_kill_vlan() functions.  Removes detection of PTP frames over L4
(UDP) on the XL710 MAC, since there was a product decision to defeature
it.  Fixed a previous refactor of active filters which caused issues in
the accounting of active_filters.  Remaining work was done in the VLAN
filters to improve readability and simplify code as much as possible
to reduce inconsistencies.

Alex fixes foul budget accounting in core code by returning actual
work done, capped to budget-1.

Henry fixes the "ethtool -p" function for 1G BaseT PHYs.

Carolyn adds support for 25G devices for i40e and i40evf.

Michal adds functions to apply the correct access method for external PHYs
which could use Clause22 or Clause45 depending on the PHY.

v2: dropped last patch from previous series, since changes are needed based
    on feedback from Sergei Shtylyov
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/i40e/i40e.h

@@ -356,10 +356,11 @@ struct i40e_pf {
 #define I40E_FLAG_NO_DCB_SUPPORT		BIT_ULL(45)
 #define I40E_FLAG_USE_SET_LLDP_MIB		BIT_ULL(46)
 #define I40E_FLAG_STOP_FW_LLDP			BIT_ULL(47)
-#define I40E_FLAG_HAVE_10GBASET_PHY		BIT_ULL(48)
+#define I40E_FLAG_PHY_CONTROLS_LEDS		BIT_ULL(48)
 #define I40E_FLAG_PF_MAC			BIT_ULL(50)
 #define I40E_FLAG_TRUE_PROMISC_SUPPORT		BIT_ULL(51)
 #define I40E_FLAG_HAVE_CRT_RETIMER		BIT_ULL(52)
+#define I40E_FLAG_PTP_L4_CAPABLE		BIT_ULL(53)
 
 	/* tracks features that get auto disabled by errors */
 	u64 auto_disable_flags;
@@ -596,6 +597,7 @@ struct i40e_vsi {
 	u16 veb_idx;		/* index of VEB parent */
 	struct kobject *kobj;	/* sysfs object */
 	bool current_isup;	/* Sync 'link up' logging */
+	enum i40e_aq_link_speed current_speed;	/* Sync link speed logging */
 
 	void *priv;	/* client driver data reference. */
 
@@ -850,7 +852,9 @@ int i40e_open(struct net_device *netdev);
 int i40e_close(struct net_device *netdev);
 int i40e_vsi_open(struct i40e_vsi *vsi);
 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
+int i40e_add_vlan_all_mac(struct i40e_vsi *vsi, s16 vid);
 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
+void i40e_rm_vlan_all_mac(struct i40e_vsi *vsi, s16 vid);
 void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi,
 					     const u8 *macaddr);

drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h

@@ -1642,6 +1642,10 @@ enum i40e_aq_phy_type {
 	I40E_PHY_TYPE_1000BASE_LX		= 0x1C,
 	I40E_PHY_TYPE_1000BASE_T_OPTICAL	= 0x1D,
 	I40E_PHY_TYPE_20GBASE_KR2		= 0x1E,
+	I40E_PHY_TYPE_25GBASE_KR		= 0x1F,
+	I40E_PHY_TYPE_25GBASE_CR		= 0x20,
+	I40E_PHY_TYPE_25GBASE_SR		= 0x21,
+	I40E_PHY_TYPE_25GBASE_LR		= 0x22,
 	I40E_PHY_TYPE_MAX
 };
 
@@ -1650,6 +1654,7 @@ enum i40e_aq_phy_type {
 #define I40E_LINK_SPEED_10GB_SHIFT	0x3
 #define I40E_LINK_SPEED_40GB_SHIFT	0x4
 #define I40E_LINK_SPEED_20GB_SHIFT	0x5
+#define I40E_LINK_SPEED_25GB_SHIFT	0x6
 
 enum i40e_aq_link_speed {
 	I40E_LINK_SPEED_UNKNOWN	= 0,
@@ -1657,7 +1662,8 @@ enum i40e_aq_link_speed {
 	I40E_LINK_SPEED_1GB	= BIT(I40E_LINK_SPEED_1000MB_SHIFT),
 	I40E_LINK_SPEED_10GB	= BIT(I40E_LINK_SPEED_10GB_SHIFT),
 	I40E_LINK_SPEED_40GB	= BIT(I40E_LINK_SPEED_40GB_SHIFT),
-	I40E_LINK_SPEED_20GB	= BIT(I40E_LINK_SPEED_20GB_SHIFT)
+	I40E_LINK_SPEED_20GB	= BIT(I40E_LINK_SPEED_20GB_SHIFT),
+	I40E_LINK_SPEED_25GB	= BIT(I40E_LINK_SPEED_25GB_SHIFT),
 };
 
 struct i40e_aqc_module_desc {
@@ -1680,6 +1686,8 @@ struct i40e_aq_get_phy_abilities_resp {
 #define I40E_AQ_PHY_LINK_ENABLED	0x08
 #define I40E_AQ_PHY_AN_ENABLED		0x10
 #define I40E_AQ_PHY_FLAG_MODULE_QUAL	0x20
+#define I40E_AQ_PHY_FEC_ABILITY_KR	0x40
+#define I40E_AQ_PHY_FEC_ABILITY_RS	0x80
 	__le16	eee_capability;
 #define I40E_AQ_EEE_100BASE_TX		0x0002
 #define I40E_AQ_EEE_1000BASE_T		0x0004
@@ -1690,7 +1698,22 @@ struct i40e_aq_get_phy_abilities_resp {
 	__le32	eeer_val;
 	u8	d3_lpan;
 #define I40E_AQ_SET_PHY_D3_LPAN_ENA	0x01
-	u8	reserved[3];
+	u8	phy_type_ext;
+#define I40E_AQ_PHY_TYPE_EXT_25G_KR	0X01
+#define I40E_AQ_PHY_TYPE_EXT_25G_CR	0X02
+#define I40E_AQ_PHY_TYPE_EXT_25G_SR	0x04
+#define I40E_AQ_PHY_TYPE_EXT_25G_LR	0x08
+	u8	fec_cfg_curr_mod_ext_info;
+#define I40E_AQ_ENABLE_FEC_KR		0x01
+#define I40E_AQ_ENABLE_FEC_RS		0x02
+#define I40E_AQ_REQUEST_FEC_KR		0x04
+#define I40E_AQ_REQUEST_FEC_RS		0x08
+#define I40E_AQ_ENABLE_FEC_AUTO		0x10
+#define I40E_AQ_FEC
+#define I40E_AQ_MODULE_TYPE_EXT_MASK	0xE0
+#define I40E_AQ_MODULE_TYPE_EXT_SHIFT	5
+
+	u8	ext_comp_code;
 	u8	phy_id[4];
 	u8	module_type[3];
 	u8	qualified_module_count;
@@ -1712,7 +1735,20 @@ struct i40e_aq_set_phy_config { /* same bits as above in all */
 	__le16	eee_capability;
 	__le32	eeer;
 	u8	low_power_ctrl;
-	u8	reserved[3];
+	u8	phy_type_ext;
+#define I40E_AQ_PHY_TYPE_EXT_25G_KR	0X01
+#define I40E_AQ_PHY_TYPE_EXT_25G_CR	0X02
+#define I40E_AQ_PHY_TYPE_EXT_25G_SR	0x04
+#define I40E_AQ_PHY_TYPE_EXT_25G_LR	0x08
+	u8	fec_config;
+#define I40E_AQ_SET_FEC_ABILITY_KR	BIT(0)
+#define I40E_AQ_SET_FEC_ABILITY_RS	BIT(1)
+#define I40E_AQ_SET_FEC_REQUEST_KR	BIT(2)
+#define I40E_AQ_SET_FEC_REQUEST_RS	BIT(3)
+#define I40E_AQ_SET_FEC_AUTO		BIT(4)
+#define I40E_AQ_PHY_FEC_CONFIG_SHIFT	0x0
+#define I40E_AQ_PHY_FEC_CONFIG_MASK	(0x1F << I40E_AQ_PHY_FEC_CONFIG_SHIFT)
+	u8	reserved;
 };
 
 I40E_CHECK_CMD_LENGTH(i40e_aq_set_phy_config);
@@ -1792,9 +1828,18 @@ struct i40e_aqc_get_link_status {
 #define I40E_AQ_LINK_TX_DRAINED		0x01
 #define I40E_AQ_LINK_TX_FLUSHED		0x03
 #define I40E_AQ_LINK_FORCED_40G		0x10
+/* 25G Error Codes */
+#define I40E_AQ_25G_NO_ERR		0X00
+#define I40E_AQ_25G_NOT_PRESENT		0X01
+#define I40E_AQ_25G_NVM_CRC_ERR		0X02
+#define I40E_AQ_25G_SBUS_UCODE_ERR	0X03
+#define I40E_AQ_25G_SERDES_UCODE_ERR	0X04
+#define I40E_AQ_25G_NIMB_UCODE_ERR	0X05
 	u8	loopback; /* use defines from i40e_aqc_set_lb_mode */
 	__le16	max_frame_size;
 	u8	config;
+#define I40E_AQ_CONFIG_FEC_KR_ENA	0x01
+#define I40E_AQ_CONFIG_FEC_RS_ENA	0x02
 #define I40E_AQ_CONFIG_CRC_ENA		0x04
 #define I40E_AQ_CONFIG_PACING_MASK	0x78
 	u8	external_power_ability;

drivers/net/ethernet/intel/i40e/i40e_common.c

@@ -53,6 +53,8 @@ static i40e_status i40e_set_mac_type(struct i40e_hw *hw)
 		case I40E_DEV_ID_10G_BASE_T4:
 		case I40E_DEV_ID_20G_KR2:
 		case I40E_DEV_ID_20G_KR2_A:
+		case I40E_DEV_ID_25G_B:
+		case I40E_DEV_ID_25G_SFP28:
 			hw->mac.type = I40E_MAC_XL710;
 			break;
 		case I40E_DEV_ID_KX_X722:
@@ -1183,6 +1185,8 @@ static enum i40e_media_type i40e_get_media_type(struct i40e_hw *hw)
 	case I40E_PHY_TYPE_1000BASE_LX:
 	case I40E_PHY_TYPE_40GBASE_SR4:
 	case I40E_PHY_TYPE_40GBASE_LR4:
+	case I40E_PHY_TYPE_25GBASE_LR:
+	case I40E_PHY_TYPE_25GBASE_SR:
 		media = I40E_MEDIA_TYPE_FIBER;
 		break;
 	case I40E_PHY_TYPE_100BASE_TX:
@@ -1197,6 +1201,7 @@ static enum i40e_media_type i40e_get_media_type(struct i40e_hw *hw)
 	case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 	case I40E_PHY_TYPE_40GBASE_AOC:
 	case I40E_PHY_TYPE_10GBASE_AOC:
+	case I40E_PHY_TYPE_25GBASE_CR:
 		media = I40E_MEDIA_TYPE_DA;
 		break;
 	case I40E_PHY_TYPE_1000BASE_KX:
@@ -1204,6 +1209,7 @@ static enum i40e_media_type i40e_get_media_type(struct i40e_hw *hw)
 	case I40E_PHY_TYPE_10GBASE_KR:
 	case I40E_PHY_TYPE_40GBASE_KR4:
 	case I40E_PHY_TYPE_20GBASE_KR2:
+	case I40E_PHY_TYPE_25GBASE_KR:
 		media = I40E_MEDIA_TYPE_BACKPLANE;
 		break;
 	case I40E_PHY_TYPE_SGMII:
@@ -1608,8 +1614,10 @@ i40e_status i40e_aq_get_phy_capabilities(struct i40e_hw *hw,
 	if (hw->aq.asq_last_status == I40E_AQ_RC_EIO)
 		status = I40E_ERR_UNKNOWN_PHY;
 
-	if (report_init)
+	if (report_init) {
 		hw->phy.phy_types = le32_to_cpu(abilities->phy_type);
+		hw->phy.phy_types |= ((u64)abilities->phy_type_ext << 32);
+	}
 
 	return status;
 }
@@ -1701,10 +1709,13 @@ enum i40e_status_code i40e_set_fc(struct i40e_hw *hw, u8 *aq_failures,
 			config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 		/* Copy over all the old settings */
 		config.phy_type = abilities.phy_type;
+		config.phy_type_ext = abilities.phy_type_ext;
 		config.link_speed = abilities.link_speed;
 		config.eee_capability = abilities.eee_capability;
 		config.eeer = abilities.eeer_val;
 		config.low_power_ctrl = abilities.d3_lpan;
+		config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
+				    I40E_AQ_PHY_FEC_CONFIG_MASK;
 		status = i40e_aq_set_phy_config(hw, &config, NULL);
 
 		if (status)
@@ -4664,6 +4675,78 @@ i40e_status i40e_write_phy_register_clause45(struct i40e_hw *hw,
 	return status;
 }
 
+/**
+ * i40e_write_phy_register
+ * @hw: pointer to the HW structure
+ * @page: registers page number
+ * @reg: register address in the page
+ * @phy_adr: PHY address on MDIO interface
+ * @value: PHY register value
+ *
+ * Writes value to specified PHY register
+ **/
+i40e_status i40e_write_phy_register(struct i40e_hw *hw,
+				    u8 page, u16 reg, u8 phy_addr, u16 value)
+{
+	i40e_status status;
+
+	switch (hw->device_id) {
+	case I40E_DEV_ID_1G_BASE_T_X722:
+		status = i40e_write_phy_register_clause22(hw, reg, phy_addr,
+							  value);
+		break;
+	case I40E_DEV_ID_10G_BASE_T:
+	case I40E_DEV_ID_10G_BASE_T4:
+	case I40E_DEV_ID_10G_BASE_T_X722:
+	case I40E_DEV_ID_25G_B:
+	case I40E_DEV_ID_25G_SFP28:
+		status = i40e_write_phy_register_clause45(hw, page, reg,
+							  phy_addr, value);
+		break;
+	default:
+		status = I40E_ERR_UNKNOWN_PHY;
+		break;
+	}
+
+	return status;
+}
+
+/**
+ * i40e_read_phy_register
+ * @hw: pointer to the HW structure
+ * @page: registers page number
+ * @reg: register address in the page
+ * @phy_adr: PHY address on MDIO interface
+ * @value: PHY register value
+ *
+ * Reads specified PHY register value
+ **/
+i40e_status i40e_read_phy_register(struct i40e_hw *hw,
+				   u8 page, u16 reg, u8 phy_addr, u16 *value)
+{
+	i40e_status status;
+
+	switch (hw->device_id) {
+	case I40E_DEV_ID_1G_BASE_T_X722:
+		status = i40e_read_phy_register_clause22(hw, reg, phy_addr,
+							 value);
+		break;
+	case I40E_DEV_ID_10G_BASE_T:
+	case I40E_DEV_ID_10G_BASE_T4:
+	case I40E_DEV_ID_10G_BASE_T_X722:
+	case I40E_DEV_ID_25G_B:
+	case I40E_DEV_ID_25G_SFP28:
+		status = i40e_read_phy_register_clause45(hw, page, reg,
+							 phy_addr, value);
+		break;
+	default:
+		status = I40E_ERR_UNKNOWN_PHY;
+		break;
+	}
+
+	return status;
+}
+
 /**
  * i40e_get_phy_address
  * @hw: pointer to the HW structure

drivers/net/ethernet/intel/i40e/i40e_debugfs.c

@@ -172,7 +172,7 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 			 f->macaddr, f->vlan,
 			 i40e_filter_state_string[f->state]);
 	}
-	dev_info(&pf->pdev->dev, "    active_filters %d, promisc_threshold %d, overflow promisc %s\n",
+	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 		 vsi->active_filters, vsi->promisc_threshold,
 		 (test_bit(__I40E_FILTER_OVERFLOW_PROMISC, &vsi->state) ?
 		  "ON" : "OFF"));

drivers/net/ethernet/intel/i40e/i40e_devids.h

@@ -39,6 +39,8 @@
 #define I40E_DEV_ID_20G_KR2		0x1587
 #define I40E_DEV_ID_20G_KR2_A		0x1588
 #define I40E_DEV_ID_10G_BASE_T4		0x1589
+#define I40E_DEV_ID_25G_B		0x158A
+#define I40E_DEV_ID_25G_SFP28		0x158B
 #define I40E_DEV_ID_KX_X722		0x37CE
 #define I40E_DEV_ID_QSFP_X722		0x37CF
 #define I40E_DEV_ID_SFP_X722		0x37D0

drivers/net/ethernet/intel/i40e/i40e_ethtool.c

@@ -265,8 +265,9 @@ static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 				     u32 *advertising)
 {
-	enum i40e_aq_capabilities_phy_type phy_types = pf->hw.phy.phy_types;
 	struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
+	u64 phy_types = pf->hw.phy.phy_types;
+
 	*supported = 0x0;
 	*advertising = 0x0;
 
@@ -369,6 +370,13 @@ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 			if (!(pf->flags & I40E_FLAG_HAVE_CRT_RETIMER))
 				*advertising |= ADVERTISED_1000baseKX_Full;
 	}
+	if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
+	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
+	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
+	    phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
+		*supported |= SUPPORTED_Autoneg;
+		*advertising |= ADVERTISED_Autoneg;
+	}
 }
 
 /**
@@ -491,6 +499,14 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 				     ADVERTISED_1000baseKX_Full |
 				     ADVERTISED_Autoneg;
 		break;
+	case I40E_PHY_TYPE_25GBASE_KR:
+	case I40E_PHY_TYPE_25GBASE_CR:
+	case I40E_PHY_TYPE_25GBASE_SR:
+	case I40E_PHY_TYPE_25GBASE_LR:
+		ecmd->supported = SUPPORTED_Autoneg;
+		ecmd->advertising = ADVERTISED_Autoneg;
+		/* TODO: add speeds when ethtool is ready to support*/
+		break;
 	default:
 		/* if we got here and link is up something bad is afoot */
 		netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
@@ -512,6 +528,14 @@ static void i40e_get_settings_link_up(struct i40e_hw *hw,
 	case I40E_LINK_SPEED_40GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_40000);
 		break;
+	case I40E_LINK_SPEED_25GB:
+#ifdef SPEED_25000
+		ethtool_cmd_speed_set(ecmd, SPEED_25000);
+#else
+		netdev_info(netdev,
+			    "Speed is 25G, display not supported by this version of ethtool.\n");
+#endif
+		break;
 	case I40E_LINK_SPEED_20GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_20000);
 		break;
@@ -1657,8 +1681,19 @@ static int i40e_get_ts_info(struct net_device *dev,
 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
 
 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
-			   BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
-			   BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
+
+	if (pf->flags & I40E_FLAG_PTP_L4_CAPABLE)
+		info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+				    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+				    BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
 
 	return 0;
 }
@@ -1890,7 +1925,7 @@ static int i40e_set_phys_id(struct net_device *netdev,
 
 	switch (state) {
 	case ETHTOOL_ID_ACTIVE:
-		if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
+		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
 			pf->led_status = i40e_led_get(hw);
 		} else {
 			i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL);
@@ -1900,20 +1935,20 @@ static int i40e_set_phys_id(struct net_device *netdev,
 		}
 		return blink_freq;
 	case ETHTOOL_ID_ON:
-		if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
+		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0xf, false);
 		else
 			ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_OFF:
-		if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
+		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS))
 			i40e_led_set(hw, 0x0, false);
 		else
 			ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
 		break;
 	case ETHTOOL_ID_INACTIVE:
-		if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
-			i40e_led_set(hw, false, pf->led_status);
+		if (!(pf->flags & I40E_FLAG_PHY_CONTROLS_LEDS)) {
+			i40e_led_set(hw, pf->led_status, false);
 		} else {
 			ret = i40e_led_set_phy(hw, false, pf->led_status,
 					       (pf->phy_led_val |

drivers/net/ethernet/intel/i40e/i40e_prototype.h

@@ -373,6 +373,10 @@ i40e_status i40e_read_phy_register_clause45(struct i40e_hw *hw,
 				u8 page, u16 reg, u8 phy_addr, u16 *value);
 i40e_status i40e_write_phy_register_clause45(struct i40e_hw *hw,
 				u8 page, u16 reg, u8 phy_addr, u16 value);
+i40e_status i40e_read_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
+				   u8 phy_addr, u16 *value);
+i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
+				    u8 phy_addr, u16 value);
 u8 i40e_get_phy_address(struct i40e_hw *hw, u8 dev_num);
 i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 				    u32 time, u32 interval);

drivers/net/ethernet/intel/i40e/i40e_ptp.c

@@ -521,6 +521,8 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
 	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+		if (!(pf->flags & I40E_FLAG_PTP_L4_CAPABLE))
+			return -ERANGE;
 		pf->ptp_rx = true;
 		tsyntype = I40E_PRTTSYN_CTL1_V1MESSTYPE0_MASK |
 			   I40E_PRTTSYN_CTL1_TSYNTYPE_V1 |
@@ -528,19 +530,26 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 		config->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
 		break;
 	case HWTSTAMP_FILTER_PTP_V2_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
-	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
 	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		if (!(pf->flags & I40E_FLAG_PTP_L4_CAPABLE))
+			return -ERANGE;
+		/* fall through */
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
 		pf->ptp_rx = true;
 		tsyntype = I40E_PRTTSYN_CTL1_V2MESSTYPE0_MASK |
-			   I40E_PRTTSYN_CTL1_TSYNTYPE_V2 |
-			   I40E_PRTTSYN_CTL1_UDP_ENA_MASK;
+			   I40E_PRTTSYN_CTL1_TSYNTYPE_V2;
+		if (pf->flags & I40E_FLAG_PTP_L4_CAPABLE) {
+			tsyntype |= I40E_PRTTSYN_CTL1_UDP_ENA_MASK;
 			config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		} else {
+			config->rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
+		}
 		break;
 	case HWTSTAMP_FILTER_ALL:
 	default:

drivers/net/ethernet/intel/i40e/i40e_txrx.c

@@ -2027,7 +2027,7 @@ int i40e_napi_poll(struct napi_struct *napi, int budget)
 	else
 		i40e_update_enable_itr(vsi, q_vector);
 
-	return 0;
+	return min(work_done, budget - 1);
 }
 
 /**

drivers/net/ethernet/intel/i40e/i40e_txrx.h

@@ -173,26 +173,37 @@ static inline bool i40e_test_staterr(union i40e_rx_desc *rx_desc,
 #define I40E_MAX_DATA_PER_TXD_ALIGNED \
 	(I40E_MAX_DATA_PER_TXD & ~(I40E_MAX_READ_REQ_SIZE - 1))
 
-/* This ugly bit of math is equivalent to DIV_ROUNDUP(size, X) where X is
- * the value I40E_MAX_DATA_PER_TXD_ALIGNED.  It is needed due to the fact
- * that 12K is not a power of 2 and division is expensive.  It is used to
- * approximate the number of descriptors used per linear buffer.  Note
- * that this will overestimate in some cases as it doesn't account for the
- * fact that we will add up to 4K - 1 in aligning the 12K buffer, however
- * the error should not impact things much as large buffers usually mean
- * we will use fewer descriptors then there are frags in an skb.
+/**
+ * i40e_txd_use_count  - estimate the number of descriptors needed for Tx
+ * @size: transmit request size in bytes
+ *
+ * Due to hardware alignment restrictions (4K alignment), we need to
+ * assume that we can have no more than 12K of data per descriptor, even
+ * though each descriptor can take up to 16K - 1 bytes of aligned memory.
+ * Thus, we need to divide by 12K. But division is slow! Instead,
+ * we decompose the operation into shifts and one relatively cheap
+ * multiply operation.
+ *
+ * To divide by 12K, we first divide by 4K, then divide by 3:
+ *     To divide by 4K, shift right by 12 bits
+ *     To divide by 3, multiply by 85, then divide by 256
+ *     (Divide by 256 is done by shifting right by 8 bits)
+ * Finally, we add one to round up. Because 256 isn't an exact multiple of
+ * 3, we'll underestimate near each multiple of 12K. This is actually more
+ * accurate as we have 4K - 1 of wiggle room that we can fit into the last
+ * segment.  For our purposes this is accurate out to 1M which is orders of
+ * magnitude greater than our largest possible GSO size.
+ *
+ * This would then be implemented as:
+ *     return (((size >> 12) * 85) >> 8) + 1;
+ *
+ * Since multiplication and division are commutative, we can reorder
+ * operations into:
+ *     return ((size * 85) >> 20) + 1;
  */
 static inline unsigned int i40e_txd_use_count(unsigned int size)
 {
-	const unsigned int max = I40E_MAX_DATA_PER_TXD_ALIGNED;
-	const unsigned int reciprocal = ((1ull << 32) - 1 + (max / 2)) / max;
-	unsigned int adjust = ~(u32)0;
-
-	/* if we rounded up on the reciprocal pull down the adjustment */
-	if ((max * reciprocal) > adjust)
-		adjust = ~(u32)(reciprocal - 1);
-
-	return (u32)((((u64)size * reciprocal) + adjust) >> 32);
+	return ((size * 85) >> 20) + 1;
 }
 
 /* Tx Descriptors needed, worst case */

drivers/net/ethernet/intel/i40e/i40e_type.h

@@ -213,47 +213,59 @@ struct i40e_link_status {
 #define I40E_MODULE_TYPE_1000BASE_T	0x08
 };
 
-enum i40e_aq_capabilities_phy_type {
-	I40E_CAP_PHY_TYPE_SGMII		  = BIT(I40E_PHY_TYPE_SGMII),
-	I40E_CAP_PHY_TYPE_1000BASE_KX	  = BIT(I40E_PHY_TYPE_1000BASE_KX),
-	I40E_CAP_PHY_TYPE_10GBASE_KX4	  = BIT(I40E_PHY_TYPE_10GBASE_KX4),
-	I40E_CAP_PHY_TYPE_10GBASE_KR	  = BIT(I40E_PHY_TYPE_10GBASE_KR),
-	I40E_CAP_PHY_TYPE_40GBASE_KR4	  = BIT(I40E_PHY_TYPE_40GBASE_KR4),
-	I40E_CAP_PHY_TYPE_XAUI		  = BIT(I40E_PHY_TYPE_XAUI),
-	I40E_CAP_PHY_TYPE_XFI		  = BIT(I40E_PHY_TYPE_XFI),
-	I40E_CAP_PHY_TYPE_SFI		  = BIT(I40E_PHY_TYPE_SFI),
-	I40E_CAP_PHY_TYPE_XLAUI		  = BIT(I40E_PHY_TYPE_XLAUI),
-	I40E_CAP_PHY_TYPE_XLPPI		  = BIT(I40E_PHY_TYPE_XLPPI),
-	I40E_CAP_PHY_TYPE_40GBASE_CR4_CU  = BIT(I40E_PHY_TYPE_40GBASE_CR4_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_CR1_CU  = BIT(I40E_PHY_TYPE_10GBASE_CR1_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_AOC	  = BIT(I40E_PHY_TYPE_10GBASE_AOC),
-	I40E_CAP_PHY_TYPE_40GBASE_AOC	  = BIT(I40E_PHY_TYPE_40GBASE_AOC),
-	I40E_CAP_PHY_TYPE_100BASE_TX	  = BIT(I40E_PHY_TYPE_100BASE_TX),
-	I40E_CAP_PHY_TYPE_1000BASE_T	  = BIT(I40E_PHY_TYPE_1000BASE_T),
-	I40E_CAP_PHY_TYPE_10GBASE_T	  = BIT(I40E_PHY_TYPE_10GBASE_T),
-	I40E_CAP_PHY_TYPE_10GBASE_SR	  = BIT(I40E_PHY_TYPE_10GBASE_SR),
-	I40E_CAP_PHY_TYPE_10GBASE_LR	  = BIT(I40E_PHY_TYPE_10GBASE_LR),
-	I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU = BIT(I40E_PHY_TYPE_10GBASE_SFPP_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_CR1	  = BIT(I40E_PHY_TYPE_10GBASE_CR1),
-	I40E_CAP_PHY_TYPE_40GBASE_CR4	  = BIT(I40E_PHY_TYPE_40GBASE_CR4),
-	I40E_CAP_PHY_TYPE_40GBASE_SR4	  = BIT(I40E_PHY_TYPE_40GBASE_SR4),
-	I40E_CAP_PHY_TYPE_40GBASE_LR4	  = BIT(I40E_PHY_TYPE_40GBASE_LR4),
-	I40E_CAP_PHY_TYPE_1000BASE_SX	  = BIT(I40E_PHY_TYPE_1000BASE_SX),
-	I40E_CAP_PHY_TYPE_1000BASE_LX	  = BIT(I40E_PHY_TYPE_1000BASE_LX),
-	I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL =
-					 BIT(I40E_PHY_TYPE_1000BASE_T_OPTICAL),
-	I40E_CAP_PHY_TYPE_20GBASE_KR2	  = BIT(I40E_PHY_TYPE_20GBASE_KR2)
-};
-
 struct i40e_phy_info {
 	struct i40e_link_status link_info;
 	struct i40e_link_status link_info_old;
 	bool get_link_info;
 	enum i40e_media_type media_type;
 	/* all the phy types the NVM is capable of */
-	enum i40e_aq_capabilities_phy_type phy_types;
-};
-
+	u64 phy_types;
+};
+
+#define I40E_CAP_PHY_TYPE_SGMII BIT_ULL(I40E_PHY_TYPE_SGMII)
+#define I40E_CAP_PHY_TYPE_1000BASE_KX BIT_ULL(I40E_PHY_TYPE_1000BASE_KX)
+#define I40E_CAP_PHY_TYPE_10GBASE_KX4 BIT_ULL(I40E_PHY_TYPE_10GBASE_KX4)
+#define I40E_CAP_PHY_TYPE_10GBASE_KR BIT_ULL(I40E_PHY_TYPE_10GBASE_KR)
+#define I40E_CAP_PHY_TYPE_40GBASE_KR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_KR4)
+#define I40E_CAP_PHY_TYPE_XAUI BIT_ULL(I40E_PHY_TYPE_XAUI)
+#define I40E_CAP_PHY_TYPE_XFI BIT_ULL(I40E_PHY_TYPE_XFI)
+#define I40E_CAP_PHY_TYPE_SFI BIT_ULL(I40E_PHY_TYPE_SFI)
+#define I40E_CAP_PHY_TYPE_XLAUI BIT_ULL(I40E_PHY_TYPE_XLAUI)
+#define I40E_CAP_PHY_TYPE_XLPPI BIT_ULL(I40E_PHY_TYPE_XLPPI)
+#define I40E_CAP_PHY_TYPE_40GBASE_CR4_CU BIT_ULL(I40E_PHY_TYPE_40GBASE_CR4_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_CR1_CU BIT_ULL(I40E_PHY_TYPE_10GBASE_CR1_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_AOC BIT_ULL(I40E_PHY_TYPE_10GBASE_AOC)
+#define I40E_CAP_PHY_TYPE_40GBASE_AOC BIT_ULL(I40E_PHY_TYPE_40GBASE_AOC)
+#define I40E_CAP_PHY_TYPE_100BASE_TX BIT_ULL(I40E_PHY_TYPE_100BASE_TX)
+#define I40E_CAP_PHY_TYPE_1000BASE_T BIT_ULL(I40E_PHY_TYPE_1000BASE_T)
+#define I40E_CAP_PHY_TYPE_10GBASE_T BIT_ULL(I40E_PHY_TYPE_10GBASE_T)
+#define I40E_CAP_PHY_TYPE_10GBASE_SR BIT_ULL(I40E_PHY_TYPE_10GBASE_SR)
+#define I40E_CAP_PHY_TYPE_10GBASE_LR BIT_ULL(I40E_PHY_TYPE_10GBASE_LR)
+#define I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU BIT_ULL(I40E_PHY_TYPE_10GBASE_SFPP_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_CR1 BIT_ULL(I40E_PHY_TYPE_10GBASE_CR1)
+#define I40E_CAP_PHY_TYPE_40GBASE_CR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_CR4)
+#define I40E_CAP_PHY_TYPE_40GBASE_SR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_SR4)
+#define I40E_CAP_PHY_TYPE_40GBASE_LR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_LR4)
+#define I40E_CAP_PHY_TYPE_1000BASE_SX BIT_ULL(I40E_PHY_TYPE_1000BASE_SX)
+#define I40E_CAP_PHY_TYPE_1000BASE_LX BIT_ULL(I40E_PHY_TYPE_1000BASE_LX)
+#define I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL \
+				BIT_ULL(I40E_PHY_TYPE_1000BASE_T_OPTICAL)
+#define I40E_CAP_PHY_TYPE_20GBASE_KR2 BIT_ULL(I40E_PHY_TYPE_20GBASE_KR2)
+/* Defining the macro I40E_TYPE_OFFSET to implement a bit shift for some
+ * PHY types. There is an unused bit (31) in the I40E_CAP_PHY_TYPE_* bit
+ * fields but no corresponding gap in the i40e_aq_phy_type enumeration. So,
+ * a shift is needed to adjust for this with values larger than 31. The
+ * only affected values are I40E_PHY_TYPE_25GBASE_*.
+ */
+#define I40E_PHY_TYPE_OFFSET 1
+#define I40E_CAP_PHY_TYPE_25GBASE_KR BIT_ULL(I40E_PHY_TYPE_25GBASE_KR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_CR BIT_ULL(I40E_PHY_TYPE_25GBASE_CR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_SR BIT_ULL(I40E_PHY_TYPE_25GBASE_SR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_LR BIT_ULL(I40E_PHY_TYPE_25GBASE_LR + \
+					     I40E_PHY_TYPE_OFFSET)
 #define I40E_HW_CAP_MAX_GPIO			30
 /* Capabilities of a PF or a VF or the whole device */
 struct i40e_hw_capabilities {

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

@@ -2766,7 +2766,6 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 	u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_pf *pf = np->vsi->back;
-	bool is_vsi_in_vlan = false;
 	struct i40e_vsi *vsi;
 	struct i40e_vf *vf;
 	int ret = 0;
@@ -2803,11 +2802,10 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 		/* duplicate request, so just return success */
 		goto error_pvid;
 
+	/* Locked once because multiple functions below iterate list */
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
-	is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
-	spin_unlock_bh(&vsi->mac_filter_hash_lock);
 
-	if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
+	if (le16_to_cpu(vsi->info.pvid) == 0 && i40e_is_vsi_in_vlan(vsi)) {
 		dev_err(&pf->pdev->dev,
 			"VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
 			vf_id);
@@ -2830,14 +2828,23 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 	 */
 	if ((!(vlan_id || qos) ||
 	    vlanprio != le16_to_cpu(vsi->info.pvid)) &&
-	    vsi->info.pvid)
-		ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
+	    vsi->info.pvid) {
+		ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
+		if (ret) {
+			dev_info(&vsi->back->pdev->dev,
+				 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
+				 vsi->back->hw.aq.asq_last_status);
+			spin_unlock_bh(&vsi->mac_filter_hash_lock);
+			goto error_pvid;
+		}
+	}
 
 	if (vsi->info.pvid) {
-		/* kill old VLAN */
-		i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
+		/* remove all filters on the old VLAN */
+		i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
 					   VLAN_VID_MASK));
 	}
+
 	if (vlan_id || qos)
 		ret = i40e_vsi_add_pvid(vsi, vlanprio);
 	else
@@ -2847,24 +2854,30 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 		dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
 			 vlan_id, qos, vf_id);
 
-		/* add new VLAN filter */
-		ret = i40e_vsi_add_vlan(vsi, vlan_id);
+		/* add new VLAN filter for each MAC */
+		ret = i40e_add_vlan_all_mac(vsi, vlan_id);
 		if (ret) {
 			dev_info(&vsi->back->pdev->dev,
 				 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
 				 vsi->back->hw.aq.asq_last_status);
+			spin_unlock_bh(&vsi->mac_filter_hash_lock);
 			goto error_pvid;
 		}
-		/* Kill non-vlan MAC filters - ignore error return since
-		 * there might not be any non-vlan MAC filters.
-		 */
-		i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
+
+		/* remove the previously added non-VLAN MAC filters */
+		i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
 	}
 
+	spin_unlock_bh(&vsi->mac_filter_hash_lock);
+
+	/* Schedule the worker thread to take care of applying changes */
+	i40e_service_event_schedule(vsi->back);
+
 	if (ret) {
 		dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
 		goto error_pvid;
 	}
+
 	/* The Port VLAN needs to be saved across resets the same as the
 	 * default LAN MAC address.
 	 */
@@ -2921,6 +2934,9 @@ int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
 	case I40E_LINK_SPEED_40GB:
 		speed = 40000;
 		break;
+	case I40E_LINK_SPEED_25GB:
+		speed = 25000;
+		break;
 	case I40E_LINK_SPEED_20GB:
 		speed = 20000;
 		break;

drivers/net/ethernet/intel/i40evf/i40e_adminq_cmd.h

@@ -1639,6 +1639,10 @@ enum i40e_aq_phy_type {
 	I40E_PHY_TYPE_1000BASE_LX		= 0x1C,
 	I40E_PHY_TYPE_1000BASE_T_OPTICAL	= 0x1D,
 	I40E_PHY_TYPE_20GBASE_KR2		= 0x1E,
+	I40E_PHY_TYPE_25GBASE_KR		= 0x1F,
+	I40E_PHY_TYPE_25GBASE_CR		= 0x20,
+	I40E_PHY_TYPE_25GBASE_SR		= 0x21,
+	I40E_PHY_TYPE_25GBASE_LR		= 0x22,
 	I40E_PHY_TYPE_MAX
 };
 
@@ -1647,6 +1651,7 @@ enum i40e_aq_phy_type {
 #define I40E_LINK_SPEED_10GB_SHIFT	0x3
 #define I40E_LINK_SPEED_40GB_SHIFT	0x4
 #define I40E_LINK_SPEED_20GB_SHIFT	0x5
+#define I40E_LINK_SPEED_25GB_SHIFT	0x6
 
 enum i40e_aq_link_speed {
 	I40E_LINK_SPEED_UNKNOWN	= 0,
@@ -1654,7 +1659,8 @@ enum i40e_aq_link_speed {
 	I40E_LINK_SPEED_1GB	= BIT(I40E_LINK_SPEED_1000MB_SHIFT),
 	I40E_LINK_SPEED_10GB	= BIT(I40E_LINK_SPEED_10GB_SHIFT),
 	I40E_LINK_SPEED_40GB	= BIT(I40E_LINK_SPEED_40GB_SHIFT),
-	I40E_LINK_SPEED_20GB	= BIT(I40E_LINK_SPEED_20GB_SHIFT)
+	I40E_LINK_SPEED_20GB	= BIT(I40E_LINK_SPEED_20GB_SHIFT),
+	I40E_LINK_SPEED_25GB	= BIT(I40E_LINK_SPEED_25GB_SHIFT),
 };
 
 struct i40e_aqc_module_desc {
@@ -1677,6 +1683,8 @@ struct i40e_aq_get_phy_abilities_resp {
 #define I40E_AQ_PHY_LINK_ENABLED	0x08
 #define I40E_AQ_PHY_AN_ENABLED		0x10
 #define I40E_AQ_PHY_FLAG_MODULE_QUAL	0x20
+#define I40E_AQ_PHY_FEC_ABILITY_KR	0x40
+#define I40E_AQ_PHY_FEC_ABILITY_RS	0x80
 	__le16	eee_capability;
 #define I40E_AQ_EEE_100BASE_TX		0x0002
 #define I40E_AQ_EEE_1000BASE_T		0x0004
@@ -1687,7 +1695,22 @@ struct i40e_aq_get_phy_abilities_resp {
 	__le32	eeer_val;
 	u8	d3_lpan;
 #define I40E_AQ_SET_PHY_D3_LPAN_ENA	0x01
-	u8	reserved[3];
+	u8	phy_type_ext;
+#define I40E_AQ_PHY_TYPE_EXT_25G_KR	0X01
+#define I40E_AQ_PHY_TYPE_EXT_25G_CR	0X02
+#define I40E_AQ_PHY_TYPE_EXT_25G_SR	0x04
+#define I40E_AQ_PHY_TYPE_EXT_25G_LR	0x08
+	u8	fec_cfg_curr_mod_ext_info;
+#define I40E_AQ_ENABLE_FEC_KR		0x01
+#define I40E_AQ_ENABLE_FEC_RS		0x02
+#define I40E_AQ_REQUEST_FEC_KR		0x04
+#define I40E_AQ_REQUEST_FEC_RS		0x08
+#define I40E_AQ_ENABLE_FEC_AUTO		0x10
+#define I40E_AQ_FEC
+#define I40E_AQ_MODULE_TYPE_EXT_MASK	0xE0
+#define I40E_AQ_MODULE_TYPE_EXT_SHIFT	5
+
+	u8	ext_comp_code;
 	u8	phy_id[4];
 	u8	module_type[3];
 	u8	qualified_module_count;
@@ -1709,7 +1732,20 @@ struct i40e_aq_set_phy_config { /* same bits as above in all */
 	__le16	eee_capability;
 	__le32	eeer;
 	u8	low_power_ctrl;
-	u8	reserved[3];
+	u8	phy_type_ext;
+#define I40E_AQ_PHY_TYPE_EXT_25G_KR	0X01
+#define I40E_AQ_PHY_TYPE_EXT_25G_CR	0X02
+#define I40E_AQ_PHY_TYPE_EXT_25G_SR	0x04
+#define I40E_AQ_PHY_TYPE_EXT_25G_LR	0x08
+	u8	fec_config;
+#define I40E_AQ_SET_FEC_ABILITY_KR	BIT(0)
+#define I40E_AQ_SET_FEC_ABILITY_RS	BIT(1)
+#define I40E_AQ_SET_FEC_REQUEST_KR	BIT(2)
+#define I40E_AQ_SET_FEC_REQUEST_RS	BIT(3)
+#define I40E_AQ_SET_FEC_AUTO		BIT(4)
+#define I40E_AQ_PHY_FEC_CONFIG_SHIFT	0x0
+#define I40E_AQ_PHY_FEC_CONFIG_MASK	(0x1F << I40E_AQ_PHY_FEC_CONFIG_SHIFT)
+	u8	reserved;
 };
 
 I40E_CHECK_CMD_LENGTH(i40e_aq_set_phy_config);
@@ -1789,9 +1825,18 @@ struct i40e_aqc_get_link_status {
 #define I40E_AQ_LINK_TX_DRAINED		0x01
 #define I40E_AQ_LINK_TX_FLUSHED		0x03
 #define I40E_AQ_LINK_FORCED_40G		0x10
+/* 25G Error Codes */
+#define I40E_AQ_25G_NO_ERR		0X00
+#define I40E_AQ_25G_NOT_PRESENT		0X01
+#define I40E_AQ_25G_NVM_CRC_ERR		0X02
+#define I40E_AQ_25G_SBUS_UCODE_ERR	0X03
+#define I40E_AQ_25G_SERDES_UCODE_ERR	0X04
+#define I40E_AQ_25G_NIMB_UCODE_ERR	0X05
 	u8	loopback; /* use defines from i40e_aqc_set_lb_mode */
 	__le16	max_frame_size;
 	u8	config;
+#define I40E_AQ_CONFIG_FEC_KR_ENA	0x01
+#define I40E_AQ_CONFIG_FEC_RS_ENA	0x02
 #define I40E_AQ_CONFIG_CRC_ENA		0x04
 #define I40E_AQ_CONFIG_PACING_MASK	0x78
 	u8	external_power_ability;

drivers/net/ethernet/intel/i40evf/i40e_common.c

@@ -53,6 +53,8 @@ i40e_status i40e_set_mac_type(struct i40e_hw *hw)
 		case I40E_DEV_ID_10G_BASE_T4:
 		case I40E_DEV_ID_20G_KR2:
 		case I40E_DEV_ID_20G_KR2_A:
+		case I40E_DEV_ID_25G_B:
+		case I40E_DEV_ID_25G_SFP28:
 			hw->mac.type = I40E_MAC_XL710;
 			break;
 		case I40E_DEV_ID_SFP_X722:

drivers/net/ethernet/intel/i40evf/i40e_devids.h

@@ -39,6 +39,8 @@
 #define I40E_DEV_ID_20G_KR2		0x1587
 #define I40E_DEV_ID_20G_KR2_A		0x1588
 #define I40E_DEV_ID_10G_BASE_T4		0x1589
+#define I40E_DEV_ID_25G_B		0x158A
+#define I40E_DEV_ID_25G_SFP28		0x158B
 #define I40E_DEV_ID_VF			0x154C
 #define I40E_DEV_ID_VF_HV		0x1571
 #define I40E_DEV_ID_SFP_X722		0x37D0

drivers/net/ethernet/intel/i40evf/i40e_prototype.h

@@ -115,6 +115,10 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw, u8 page,
 				   u16 reg, u8 phy_addr, u16 *value);
 i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page,
 				    u16 reg, u8 phy_addr, u16 value);
+i40e_status i40e_read_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
+				   u8 phy_addr, u16 *value);
+i40e_status i40e_write_phy_register(struct i40e_hw *hw, u8 page, u16 reg,
+				    u8 phy_addr, u16 value);
 u8 i40e_get_phy_address(struct i40e_hw *hw, u8 dev_num);
 i40e_status i40e_blink_phy_link_led(struct i40e_hw *hw,
 				    u32 time, u32 interval);

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

@@ -1490,7 +1490,7 @@ int i40evf_napi_poll(struct napi_struct *napi, int budget)
 	else
 		i40e_update_enable_itr(vsi, q_vector);
 
-	return 0;
+	return min(work_done, budget - 1);
 }
 
 /**

drivers/net/ethernet/intel/i40evf/i40e_txrx.h

@@ -173,26 +173,37 @@ static inline bool i40e_test_staterr(union i40e_rx_desc *rx_desc,
 #define I40E_MAX_DATA_PER_TXD_ALIGNED \
 	(I40E_MAX_DATA_PER_TXD & ~(I40E_MAX_READ_REQ_SIZE - 1))
 
-/* This ugly bit of math is equivalent to DIV_ROUNDUP(size, X) where X is
- * the value I40E_MAX_DATA_PER_TXD_ALIGNED.  It is needed due to the fact
- * that 12K is not a power of 2 and division is expensive.  It is used to
- * approximate the number of descriptors used per linear buffer.  Note
- * that this will overestimate in some cases as it doesn't account for the
- * fact that we will add up to 4K - 1 in aligning the 12K buffer, however
- * the error should not impact things much as large buffers usually mean
- * we will use fewer descriptors then there are frags in an skb.
+/**
+ * i40e_txd_use_count  - estimate the number of descriptors needed for Tx
+ * @size: transmit request size in bytes
+ *
+ * Due to hardware alignment restrictions (4K alignment), we need to
+ * assume that we can have no more than 12K of data per descriptor, even
+ * though each descriptor can take up to 16K - 1 bytes of aligned memory.
+ * Thus, we need to divide by 12K. But division is slow! Instead,
+ * we decompose the operation into shifts and one relatively cheap
+ * multiply operation.
+ *
+ * To divide by 12K, we first divide by 4K, then divide by 3:
+ *     To divide by 4K, shift right by 12 bits
+ *     To divide by 3, multiply by 85, then divide by 256
+ *     (Divide by 256 is done by shifting right by 8 bits)
+ * Finally, we add one to round up. Because 256 isn't an exact multiple of
+ * 3, we'll underestimate near each multiple of 12K. This is actually more
+ * accurate as we have 4K - 1 of wiggle room that we can fit into the last
+ * segment.  For our purposes this is accurate out to 1M which is orders of
+ * magnitude greater than our largest possible GSO size.
+ *
+ * This would then be implemented as:
+ *     return (((size >> 12) * 85) >> 8) + 1;
+ *
+ * Since multiplication and division are commutative, we can reorder
+ * operations into:
+ *     return ((size * 85) >> 20) + 1;
  */
 static inline unsigned int i40e_txd_use_count(unsigned int size)
 {
-	const unsigned int max = I40E_MAX_DATA_PER_TXD_ALIGNED;
-	const unsigned int reciprocal = ((1ull << 32) - 1 + (max / 2)) / max;
-	unsigned int adjust = ~(u32)0;
-
-	/* if we rounded up on the reciprocal pull down the adjustment */
-	if ((max * reciprocal) > adjust)
-		adjust = ~(u32)(reciprocal - 1);
-
-	return (u32)((((u64)size * reciprocal) + adjust) >> 32);
+	return ((size * 85) >> 20) + 1;
 }
 
 /* Tx Descriptors needed, worst case */

drivers/net/ethernet/intel/i40evf/i40e_type.h

@@ -187,47 +187,59 @@ struct i40e_link_status {
 #define I40E_MODULE_TYPE_1000BASE_T	0x08
 };
 
-enum i40e_aq_capabilities_phy_type {
-	I40E_CAP_PHY_TYPE_SGMII		  = BIT(I40E_PHY_TYPE_SGMII),
-	I40E_CAP_PHY_TYPE_1000BASE_KX	  = BIT(I40E_PHY_TYPE_1000BASE_KX),
-	I40E_CAP_PHY_TYPE_10GBASE_KX4	  = BIT(I40E_PHY_TYPE_10GBASE_KX4),
-	I40E_CAP_PHY_TYPE_10GBASE_KR	  = BIT(I40E_PHY_TYPE_10GBASE_KR),
-	I40E_CAP_PHY_TYPE_40GBASE_KR4	  = BIT(I40E_PHY_TYPE_40GBASE_KR4),
-	I40E_CAP_PHY_TYPE_XAUI		  = BIT(I40E_PHY_TYPE_XAUI),
-	I40E_CAP_PHY_TYPE_XFI		  = BIT(I40E_PHY_TYPE_XFI),
-	I40E_CAP_PHY_TYPE_SFI		  = BIT(I40E_PHY_TYPE_SFI),
-	I40E_CAP_PHY_TYPE_XLAUI		  = BIT(I40E_PHY_TYPE_XLAUI),
-	I40E_CAP_PHY_TYPE_XLPPI		  = BIT(I40E_PHY_TYPE_XLPPI),
-	I40E_CAP_PHY_TYPE_40GBASE_CR4_CU  = BIT(I40E_PHY_TYPE_40GBASE_CR4_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_CR1_CU  = BIT(I40E_PHY_TYPE_10GBASE_CR1_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_AOC	  = BIT(I40E_PHY_TYPE_10GBASE_AOC),
-	I40E_CAP_PHY_TYPE_40GBASE_AOC	  = BIT(I40E_PHY_TYPE_40GBASE_AOC),
-	I40E_CAP_PHY_TYPE_100BASE_TX	  = BIT(I40E_PHY_TYPE_100BASE_TX),
-	I40E_CAP_PHY_TYPE_1000BASE_T	  = BIT(I40E_PHY_TYPE_1000BASE_T),
-	I40E_CAP_PHY_TYPE_10GBASE_T	  = BIT(I40E_PHY_TYPE_10GBASE_T),
-	I40E_CAP_PHY_TYPE_10GBASE_SR	  = BIT(I40E_PHY_TYPE_10GBASE_SR),
-	I40E_CAP_PHY_TYPE_10GBASE_LR	  = BIT(I40E_PHY_TYPE_10GBASE_LR),
-	I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU = BIT(I40E_PHY_TYPE_10GBASE_SFPP_CU),
-	I40E_CAP_PHY_TYPE_10GBASE_CR1	  = BIT(I40E_PHY_TYPE_10GBASE_CR1),
-	I40E_CAP_PHY_TYPE_40GBASE_CR4	  = BIT(I40E_PHY_TYPE_40GBASE_CR4),
-	I40E_CAP_PHY_TYPE_40GBASE_SR4	  = BIT(I40E_PHY_TYPE_40GBASE_SR4),
-	I40E_CAP_PHY_TYPE_40GBASE_LR4	  = BIT(I40E_PHY_TYPE_40GBASE_LR4),
-	I40E_CAP_PHY_TYPE_1000BASE_SX	  = BIT(I40E_PHY_TYPE_1000BASE_SX),
-	I40E_CAP_PHY_TYPE_1000BASE_LX	  = BIT(I40E_PHY_TYPE_1000BASE_LX),
-	I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL =
-					 BIT(I40E_PHY_TYPE_1000BASE_T_OPTICAL),
-	I40E_CAP_PHY_TYPE_20GBASE_KR2	  = BIT(I40E_PHY_TYPE_20GBASE_KR2)
-};
-
 struct i40e_phy_info {
 	struct i40e_link_status link_info;
 	struct i40e_link_status link_info_old;
 	bool get_link_info;
 	enum i40e_media_type media_type;
 	/* all the phy types the NVM is capable of */
-	enum i40e_aq_capabilities_phy_type phy_types;
-};
-
+	u64 phy_types;
+};
+
+#define I40E_CAP_PHY_TYPE_SGMII BIT_ULL(I40E_PHY_TYPE_SGMII)
+#define I40E_CAP_PHY_TYPE_1000BASE_KX BIT_ULL(I40E_PHY_TYPE_1000BASE_KX)
+#define I40E_CAP_PHY_TYPE_10GBASE_KX4 BIT_ULL(I40E_PHY_TYPE_10GBASE_KX4)
+#define I40E_CAP_PHY_TYPE_10GBASE_KR BIT_ULL(I40E_PHY_TYPE_10GBASE_KR)
+#define I40E_CAP_PHY_TYPE_40GBASE_KR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_KR4)
+#define I40E_CAP_PHY_TYPE_XAUI BIT_ULL(I40E_PHY_TYPE_XAUI)
+#define I40E_CAP_PHY_TYPE_XFI BIT_ULL(I40E_PHY_TYPE_XFI)
+#define I40E_CAP_PHY_TYPE_SFI BIT_ULL(I40E_PHY_TYPE_SFI)
+#define I40E_CAP_PHY_TYPE_XLAUI BIT_ULL(I40E_PHY_TYPE_XLAUI)
+#define I40E_CAP_PHY_TYPE_XLPPI BIT_ULL(I40E_PHY_TYPE_XLPPI)
+#define I40E_CAP_PHY_TYPE_40GBASE_CR4_CU BIT_ULL(I40E_PHY_TYPE_40GBASE_CR4_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_CR1_CU BIT_ULL(I40E_PHY_TYPE_10GBASE_CR1_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_AOC BIT_ULL(I40E_PHY_TYPE_10GBASE_AOC)
+#define I40E_CAP_PHY_TYPE_40GBASE_AOC BIT_ULL(I40E_PHY_TYPE_40GBASE_AOC)
+#define I40E_CAP_PHY_TYPE_100BASE_TX BIT_ULL(I40E_PHY_TYPE_100BASE_TX)
+#define I40E_CAP_PHY_TYPE_1000BASE_T BIT_ULL(I40E_PHY_TYPE_1000BASE_T)
+#define I40E_CAP_PHY_TYPE_10GBASE_T BIT_ULL(I40E_PHY_TYPE_10GBASE_T)
+#define I40E_CAP_PHY_TYPE_10GBASE_SR BIT_ULL(I40E_PHY_TYPE_10GBASE_SR)
+#define I40E_CAP_PHY_TYPE_10GBASE_LR BIT_ULL(I40E_PHY_TYPE_10GBASE_LR)
+#define I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU BIT_ULL(I40E_PHY_TYPE_10GBASE_SFPP_CU)
+#define I40E_CAP_PHY_TYPE_10GBASE_CR1 BIT_ULL(I40E_PHY_TYPE_10GBASE_CR1)
+#define I40E_CAP_PHY_TYPE_40GBASE_CR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_CR4)
+#define I40E_CAP_PHY_TYPE_40GBASE_SR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_SR4)
+#define I40E_CAP_PHY_TYPE_40GBASE_LR4 BIT_ULL(I40E_PHY_TYPE_40GBASE_LR4)
+#define I40E_CAP_PHY_TYPE_1000BASE_SX BIT_ULL(I40E_PHY_TYPE_1000BASE_SX)
+#define I40E_CAP_PHY_TYPE_1000BASE_LX BIT_ULL(I40E_PHY_TYPE_1000BASE_LX)
+#define I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL \
+				BIT_ULL(I40E_PHY_TYPE_1000BASE_T_OPTICAL)
+#define I40E_CAP_PHY_TYPE_20GBASE_KR2 BIT_ULL(I40E_PHY_TYPE_20GBASE_KR2)
+/* Defining the macro I40E_TYPE_OFFSET to implement a bit shift for some
+ * PHY types. There is an unused bit (31) in the I40E_CAP_PHY_TYPE_* bit
+ * fields but no corresponding gap in the i40e_aq_phy_type enumeration. So,
+ * a shift is needed to adjust for this with values larger than 31. The
+ * only affected values are I40E_PHY_TYPE_25GBASE_*.
+ */
+#define I40E_PHY_TYPE_OFFSET 1
+#define I40E_CAP_PHY_TYPE_25GBASE_KR BIT_ULL(I40E_PHY_TYPE_25GBASE_KR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_CR BIT_ULL(I40E_PHY_TYPE_25GBASE_CR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_SR BIT_ULL(I40E_PHY_TYPE_25GBASE_SR + \
+					     I40E_PHY_TYPE_OFFSET)
+#define I40E_CAP_PHY_TYPE_25GBASE_LR BIT_ULL(I40E_PHY_TYPE_25GBASE_LR + \
+					     I40E_PHY_TYPE_OFFSET)
 #define I40E_HW_CAP_MAX_GPIO			30
 /* Capabilities of a PF or a VF or the whole device */
 struct i40e_hw_capabilities {

drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c

@@ -85,6 +85,14 @@ static int i40evf_get_settings(struct net_device *netdev,
 	case I40E_LINK_SPEED_40GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_40000);
 		break;
+	case I40E_LINK_SPEED_25GB:
+#ifdef SPEED_25000
+		ethtool_cmd_speed_set(ecmd, SPEED_25000);
+#else
+		netdev_info(netdev,
+			    "Speed is 25G, display not supported by this version of ethtool.\n");
+#endif
+		break;
 	case I40E_LINK_SPEED_20GB:
 		ethtool_cmd_speed_set(ecmd, SPEED_20000);
 		break;

drivers/net/ethernet/intel/i40evf/i40evf_main.c

@@ -38,7 +38,7 @@ static const char i40evf_driver_string[] =
 
 #define DRV_VERSION_MAJOR 1
 #define DRV_VERSION_MINOR 6
-#define DRV_VERSION_BUILD 21
+#define DRV_VERSION_BUILD 25
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD) \

drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c

@@ -836,6 +836,9 @@ static void i40evf_print_link_message(struct i40evf_adapter *adapter)
 	case I40E_LINK_SPEED_40GB:
 		speed = "40 G";
 		break;
+	case I40E_LINK_SPEED_25GB:
+		speed = "25 G";
+		break;
 	case I40E_LINK_SPEED_20GB:
 		speed = "20 G";
 		break;