Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/jkirsher/net-next

Jeff Kirsher says:

====================
This series contains updates to ixgbe only.  Only change to this series
is I dropped the "ixgbe: Add support for pipeline reset" due to
change requested by Martin Josefsson.

Alexander Duyck (7):
  ixgbe: Add support for IPv6 and UDP to ixgbe_get_headlen
  ixgbe: Add support for tracking the default user priority to SR-IOV
  ixgbe: Add support for GET_QUEUES message to get DCB configuration
  ixgbe: Enable support for VF API version 1.1 in the PF.
  ixgbevf: Add VF DCB + SR-IOV support
  ixgbe: Drop unnecessary addition from ixgbe_set_rx_buffer_len
  ixgbe: Fix possible memory leak in ixgbe_set_ringparam

Don Skidmore (1):
  ixgbe: Add function ixgbe_reset_pipeline_82599

Emil Tantilov (1):
  ixgbe: add WOL support for new subdevice id

Jacob Keller (1):
  ixgbe: (PTP) refactor init, cyclecounter and reset

Tushar Dave (1):
  ixgbe: Correcting small packet padding

Wei Yongjun (1):
  ixgbe: using is_zero_ether_addr() to simplify the code
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ixgbe/ixgbe.h

@@ -483,7 +483,7 @@ struct ixgbe_adapter {
 #define IXGBE_FLAG2_FDIR_REQUIRES_REINIT        (u32)(1 << 7)
 #define IXGBE_FLAG2_RSS_FIELD_IPV4_UDP		(u32)(1 << 8)
 #define IXGBE_FLAG2_RSS_FIELD_IPV6_UDP		(u32)(1 << 9)
-#define IXGBE_FLAG2_OVERFLOW_CHECK_ENABLED	(u32)(1 << 10)
+#define IXGBE_FLAG2_PTP_ENABLED			(u32)(1 << 10)
 #define IXGBE_FLAG2_PTP_PPS_ENABLED		(u32)(1 << 11)
 
 	/* Tx fast path data */
@@ -581,7 +581,6 @@ struct ixgbe_adapter {
 	struct timecounter tc;
 	int rx_hwtstamp_filter;
 	u32 base_incval;
-	u32 cycle_speed;
 #endif /* CONFIG_IXGBE_PTP */
 
 	/* SR-IOV */
@@ -601,6 +600,8 @@ struct ixgbe_adapter {
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *ixgbe_dbg_adapter;
 #endif /*CONFIG_DEBUG_FS*/
+
+	u8 default_up;
 };
 
 struct ixgbe_fdir_filter {
@@ -752,6 +753,7 @@ extern void ixgbe_ptp_rx_hwtstamp(struct ixgbe_q_vector *q_vector,
 extern int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter,
 				    struct ifreq *ifr, int cmd);
 extern void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
+extern void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
 extern void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
 #endif /* CONFIG_IXGBE_PTP */
 

drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c

@@ -2080,6 +2080,50 @@ static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
 	return ret_val;
 }
 
+/**
+ * ixgbe_reset_pipeline_82599 - perform pipeline reset
+ *
+ * @hw: pointer to hardware structure
+ *
+ * Reset pipeline by asserting Restart_AN together with LMS change to ensure
+ * full pipeline reset.  Note - We must hold the SW/FW semaphore before writing
+ * to AUTOC, so this function assumes the semaphore is held.
+ **/
+s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
+{
+	s32 i, autoc_reg, ret_val;
+	s32 anlp1_reg = 0;
+
+	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+	autoc_reg |= IXGBE_AUTOC_AN_RESTART;
+
+	/* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
+	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg ^ IXGBE_AUTOC_LMS_1G_AN);
+
+	/* Wait for AN to leave state 0 */
+	for (i = 0; i < 10; i++) {
+		usleep_range(4000, 8000);
+		anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
+		if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
+			break;
+	}
+
+	if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
+		hw_dbg(hw, "auto negotiation not completed\n");
+		ret_val = IXGBE_ERR_RESET_FAILED;
+		goto reset_pipeline_out;
+	}
+
+	ret_val = 0;
+
+reset_pipeline_out:
+	/* Write AUTOC register with original LMS field and Restart_AN */
+	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
+	IXGBE_WRITE_FLUSH(hw);
+
+	return ret_val;
+}
+
 static struct ixgbe_mac_operations mac_ops_82599 = {
 	.init_hw                = &ixgbe_init_hw_generic,
 	.reset_hw               = &ixgbe_reset_hw_82599,

drivers/net/ethernet/intel/ixgbe/ixgbe_common.c

@@ -1778,8 +1778,7 @@ s32 ixgbe_validate_mac_addr(u8 *mac_addr)
 	else if (IXGBE_IS_BROADCAST(mac_addr))
 		status = IXGBE_ERR_INVALID_MAC_ADDR;
 	/* Reject the zero address */
-	else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 &&
-	         mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0)
+	else if (is_zero_ether_addr(mac_addr))
 		status = IXGBE_ERR_INVALID_MAC_ADDR;
 
 	return status;

drivers/net/ethernet/intel/ixgbe/ixgbe_common.h

@@ -107,6 +107,7 @@ void ixgbe_clear_tx_pending(struct ixgbe_hw *hw);
 
 void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb,
 			     u32 headroom, int strategy);
+s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw);
 
 #define IXGBE_I2C_THERMAL_SENSOR_ADDR	0xF8
 #define IXGBE_EMC_INTERNAL_DATA		0x00

drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c

@@ -887,24 +887,23 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
                                struct ethtool_ringparam *ring)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	struct ixgbe_ring *temp_tx_ring, *temp_rx_ring;
+	struct ixgbe_ring *temp_ring;
 	int i, err = 0;
 	u32 new_rx_count, new_tx_count;
-	bool need_update = false;
 
 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 		return -EINVAL;
 
-	new_rx_count = max_t(u32, ring->rx_pending, IXGBE_MIN_RXD);
-	new_rx_count = min_t(u32, new_rx_count, IXGBE_MAX_RXD);
-	new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
-
-	new_tx_count = max_t(u32, ring->tx_pending, IXGBE_MIN_TXD);
-	new_tx_count = min_t(u32, new_tx_count, IXGBE_MAX_TXD);
+	new_tx_count = clamp_t(u32, ring->tx_pending,
+			       IXGBE_MIN_TXD, IXGBE_MAX_TXD);
 	new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
 
-	if ((new_tx_count == adapter->tx_ring[0]->count) &&
-	    (new_rx_count == adapter->rx_ring[0]->count)) {
+	new_rx_count = clamp_t(u32, ring->rx_pending,
+			       IXGBE_MIN_RXD, IXGBE_MAX_RXD);
+	new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
+
+	if ((new_tx_count == adapter->tx_ring_count) &&
+	    (new_rx_count == adapter->rx_ring_count)) {
 		/* nothing to do */
 		return 0;
 	}
@@ -922,81 +921,80 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
 		goto clear_reset;
 	}
 
-	temp_tx_ring = vmalloc(adapter->num_tx_queues * sizeof(struct ixgbe_ring));
-	if (!temp_tx_ring) {
+	/* allocate temporary buffer to store rings in */
+	i = max_t(int, adapter->num_tx_queues, adapter->num_rx_queues);
+	temp_ring = vmalloc(i * sizeof(struct ixgbe_ring));
+
+	if (!temp_ring) {
 		err = -ENOMEM;
 		goto clear_reset;
 	}
 
+	ixgbe_down(adapter);
+
+	/*
+	 * Setup new Tx resources and free the old Tx resources in that order.
+	 * We can then assign the new resources to the rings via a memcpy.
+	 * The advantage to this approach is that we are guaranteed to still
+	 * have resources even in the case of an allocation failure.
+	 */
 	if (new_tx_count != adapter->tx_ring_count) {
 		for (i = 0; i < adapter->num_tx_queues; i++) {
-			memcpy(&temp_tx_ring[i], adapter->tx_ring[i],
+			memcpy(&temp_ring[i], adapter->tx_ring[i],
 			       sizeof(struct ixgbe_ring));
-			temp_tx_ring[i].count = new_tx_count;
-			err = ixgbe_setup_tx_resources(&temp_tx_ring[i]);
+
+			temp_ring[i].count = new_tx_count;
+			err = ixgbe_setup_tx_resources(&temp_ring[i]);
 			if (err) {
 				while (i) {
 					i--;
-					ixgbe_free_tx_resources(&temp_tx_ring[i]);
+					ixgbe_free_tx_resources(&temp_ring[i]);
 				}
-				goto clear_reset;
+				goto err_setup;
 			}
 		}
-		need_update = true;
-	}
 
-	temp_rx_ring = vmalloc(adapter->num_rx_queues * sizeof(struct ixgbe_ring));
-	if (!temp_rx_ring) {
-		err = -ENOMEM;
-		goto err_setup;
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			ixgbe_free_tx_resources(adapter->tx_ring[i]);
+
+			memcpy(adapter->tx_ring[i], &temp_ring[i],
+			       sizeof(struct ixgbe_ring));
+		}
+
+		adapter->tx_ring_count = new_tx_count;
 	}
 
+	/* Repeat the process for the Rx rings if needed */
 	if (new_rx_count != adapter->rx_ring_count) {
 		for (i = 0; i < adapter->num_rx_queues; i++) {
-			memcpy(&temp_rx_ring[i], adapter->rx_ring[i],
+			memcpy(&temp_ring[i], adapter->rx_ring[i],
 			       sizeof(struct ixgbe_ring));
-			temp_rx_ring[i].count = new_rx_count;
-			err = ixgbe_setup_rx_resources(&temp_rx_ring[i]);
+
+			temp_ring[i].count = new_rx_count;
+			err = ixgbe_setup_rx_resources(&temp_ring[i]);
 			if (err) {
 				while (i) {
 					i--;
-					ixgbe_free_rx_resources(&temp_rx_ring[i]);
+					ixgbe_free_rx_resources(&temp_ring[i]);
 				}
 				goto err_setup;
 			}
+
 		}
-		need_update = true;
-	}
 
-	/* if rings need to be updated, here's the place to do it in one shot */
-	if (need_update) {
-		ixgbe_down(adapter);
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			ixgbe_free_rx_resources(adapter->rx_ring[i]);
 
-		/* tx */
-		if (new_tx_count != adapter->tx_ring_count) {
-			for (i = 0; i < adapter->num_tx_queues; i++) {
-				ixgbe_free_tx_resources(adapter->tx_ring[i]);
-				memcpy(adapter->tx_ring[i], &temp_tx_ring[i],
-				       sizeof(struct ixgbe_ring));
-			}
-			adapter->tx_ring_count = new_tx_count;
+			memcpy(adapter->rx_ring[i], &temp_ring[i],
+			       sizeof(struct ixgbe_ring));
 		}
 
-		/* rx */
-		if (new_rx_count != adapter->rx_ring_count) {
-			for (i = 0; i < adapter->num_rx_queues; i++) {
-				ixgbe_free_rx_resources(adapter->rx_ring[i]);
-				memcpy(adapter->rx_ring[i], &temp_rx_ring[i],
-				       sizeof(struct ixgbe_ring));
-			}
-			adapter->rx_ring_count = new_rx_count;
-		}
-		ixgbe_up(adapter);
+		adapter->rx_ring_count = new_rx_count;
 	}
 
-	vfree(temp_rx_ring);
 err_setup:
-	vfree(temp_tx_ring);
+	ixgbe_up(adapter);
+	vfree(temp_ring);
 clear_reset:
 	clear_bit(__IXGBE_RESETTING, &adapter->state);
 	return err;