Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-03-07

This series contains updates to i40e and i40evf only.

Most notably, Greg provides the patch to remove the dreaded configfs
changes in the driver.

Shannon cleans up a sparse warning by simply straighting out the code
so it is less convoluted.  Fixes an issue where the vector allocation
was trying too hard to save vectors for VMDq, to the point of not giving
the PF enough when in a tight situation, such as an NPAR partition.
Changed the driver to make sure that the PF will get all the queues and
vectors it wants to fill out its destiny.  Cleans up reporting to only
print the port and VEB stats if it is the first partition of a
multiplexed port.

Catherine cleans up some duplicated code by simply removing the duplicate
code.

Kamil cleans up the driver by removing an un-needed endian conversion
because it is already done by a register read function.

Jesse fixes a variable width of a datatype, where a u16 should have been
a u32.  Also cleans up debug_read_register() to resolve some sparse
warnings.  Updates the driver to use prefetch() to get the next Tx
descriptor, like in ixgbe, to improve performance.

Akeem moves around code to enable/disable loopback so that other non-SRIOV
supported driver functions can take advantage of the changes.

Anjali cleans up the logging for adding/deleting FD-SB filters, since
ethtool shows all the filters on an interface.  Updates the driver to
use l4_tunnel type generically to keep code flow simple.  Simplifies
the RSS code since the driver initializes the rss_size_max in sw_init.
====================

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

drivers/net/ethernet/intel/Kconfig

@@ -303,15 +303,6 @@ config I40E_FCOE
 
 	  If unsure, say N.
 
-config I40E_CONFIGFS_FS
-	bool "Config File System Support (configfs)"
-	default n
-	depends on I40E && CONFIGFS_FS && !(I40E=y && CONFIGFS_FS=m)
-	---help---
-	  Provides support for the configfs file system for additional
-	  driver configuration.  Say Y here if you want to use the
-	  configuration file system in the driver.
-
 config I40EVF
 	tristate "Intel(R) XL710 X710 Virtual Function Ethernet support"
 	depends on PCI_MSI

drivers/net/ethernet/intel/i40e/Makefile

@@ -37,7 +37,6 @@ i40e-objs := i40e_main.o \
 	i40e_hmc.o	\
 	i40e_lan_hmc.o	\
 	i40e_nvm.o	\
-	i40e_configfs.o	\
 	i40e_debugfs.o	\
 	i40e_diag.o	\
 	i40e_txrx.o	\

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

@@ -175,6 +175,7 @@ struct i40e_lump_tracking {
 #define I40E_FDIR_MAX_RAW_PACKET_SIZE	512
 #define I40E_FDIR_BUFFER_FULL_MARGIN	10
 #define I40E_FDIR_BUFFER_HEAD_ROOM	32
+#define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)
 
 enum i40e_fd_stat_idx {
 	I40E_FD_STAT_ATR,
@@ -276,7 +277,7 @@ struct i40e_pf {
 	enum i40e_interrupt_policy int_policy;
 	u16 rx_itr_default;
 	u16 tx_itr_default;
-	u16 msg_enable;
+	u32 msg_enable;
 	char int_name[I40E_INT_NAME_STR_LEN];
 	u16 adminq_work_limit; /* num of admin receive queue desc to process */
 	unsigned long service_timer_period;
@@ -636,9 +637,10 @@ int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 int i40e_add_del_fdir(struct i40e_vsi *vsi,
 		      struct i40e_fdir_filter *input, bool add);
 void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
-int i40e_get_current_fd_count(struct i40e_pf *pf);
-int i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
-int i40e_get_current_atr_cnt(struct i40e_pf *pf);
+u32 i40e_get_current_fd_count(struct i40e_pf *pf);
+u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
+u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
+u32 i40e_get_global_fd_count(struct i40e_pf *pf);
 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
 void i40e_set_ethtool_ops(struct net_device *netdev);
 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
@@ -747,10 +749,6 @@ int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 void i40e_ptp_init(struct i40e_pf *pf);
 void i40e_ptp_stop(struct i40e_pf *pf);
 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
-#if IS_ENABLED(CONFIG_I40E_CONFIGFS_FS)
-int i40e_configfs_init(void);
-void i40e_configfs_exit(void);
-#endif /* CONFIG_I40E_CONFIGFS_FS */
 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);

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

@@ -85,9 +85,8 @@ void i40e_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
 {
 	struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
 	u16 len = le16_to_cpu(aq_desc->datalen);
-	u8 *aq_buffer = (u8 *)buffer;
-	u32 data[4];
-	u32 i = 0;
+	u8 *buf = (u8 *)buffer;
+	u16 i = 0;
 
 	if ((!(mask & hw->debug_mask)) || (desc == NULL))
 		return;
@@ -109,29 +108,30 @@ void i40e_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
 		   le32_to_cpu(aq_desc->params.external.addr_low));
 
 	if ((buffer != NULL) && (aq_desc->datalen != 0)) {
-		memset(data, 0, sizeof(data));
 		i40e_debug(hw, mask, "AQ CMD Buffer:\n");
 		if (buf_len < len)
 			len = buf_len;
-		for (i = 0; i < len; i++) {
-			data[((i % 16) / 4)] |=
-				((u32)aq_buffer[i]) << (8 * (i % 4));
-			if ((i % 16) == 15) {
-				i40e_debug(hw, mask,
-					   "\t0x%04X  %08X %08X %08X %08X\n",
-					   i - 15, le32_to_cpu(data[0]),
-					   le32_to_cpu(data[1]),
-					   le32_to_cpu(data[2]),
-					   le32_to_cpu(data[3]));
-				memset(data, 0, sizeof(data));
-			}
+		/* write the full 16-byte chunks */
+		for (i = 0; i < (len - 16); i += 16)
+			i40e_debug(hw, mask,
+				   "\t0x%04X  %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n",
+				   i, buf[i], buf[i + 1], buf[i + 2],
+				   buf[i + 3], buf[i + 4], buf[i + 5],
+				   buf[i + 6], buf[i + 7], buf[i + 8],
+				   buf[i + 9], buf[i + 10], buf[i + 11],
+				   buf[i + 12], buf[i + 13], buf[i + 14],
+				   buf[i + 15]);
+		/* write whatever's left over without overrunning the buffer */
+		if (i < len) {
+			char d_buf[80];
+			int j = 0;
+
+			memset(d_buf, 0, sizeof(d_buf));
+			j += sprintf(d_buf, "\t0x%04X ", i);
+			while (i < len)
+				j += sprintf(&d_buf[j], " %02X", buf[i++]);
+			i40e_debug(hw, mask, "%s\n", d_buf);
 		}
-		if ((i % 16) != 0)
-			i40e_debug(hw, mask, "\t0x%04X  %08X %08X %08X %08X\n",
-				   i - (i % 16), le32_to_cpu(data[0]),
-				   le32_to_cpu(data[1]),
-				   le32_to_cpu(data[2]),
-				   le32_to_cpu(data[3]));
 	}
 }
 
@@ -2126,7 +2126,7 @@ i40e_status i40e_aq_send_msg_to_vf(struct i40e_hw *hw, u16 vfid,
  * Read the register using the admin queue commands
  **/
 i40e_status i40e_aq_debug_read_register(struct i40e_hw *hw,
-				u32  reg_addr, u64 *reg_val,
+				u32 reg_addr, u64 *reg_val,
 				struct i40e_asq_cmd_details *cmd_details)
 {
 	struct i40e_aq_desc desc;
@@ -2137,17 +2137,15 @@ i40e_status i40e_aq_debug_read_register(struct i40e_hw *hw,
 	if (reg_val == NULL)
 		return I40E_ERR_PARAM;
 
-	i40e_fill_default_direct_cmd_desc(&desc,
-					  i40e_aqc_opc_debug_read_reg);
+	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_debug_read_reg);
 
 	cmd_resp->address = cpu_to_le32(reg_addr);
 
 	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
 	if (!status) {
-		*reg_val = ((u64)cmd_resp->value_high << 32) |
-			    (u64)cmd_resp->value_low;
-		*reg_val = le64_to_cpu(*reg_val);
+		*reg_val = ((u64)le32_to_cpu(cmd_resp->value_high) << 32) |
+			   (u64)le32_to_cpu(cmd_resp->value_low);
 	}
 
 	return status;
@@ -3409,9 +3407,9 @@ i40e_status i40e_aq_add_rem_control_packet_filter(struct i40e_hw *hw,
  * is not passed then only register at 'reg_addr0' is read.
  *
  **/
-i40e_status i40e_aq_alternate_read(struct i40e_hw *hw,
-				   u32 reg_addr0, u32 *reg_val0,
-				   u32 reg_addr1, u32 *reg_val1)
+static i40e_status i40e_aq_alternate_read(struct i40e_hw *hw,
+					  u32 reg_addr0, u32 *reg_val0,
+					  u32 reg_addr1, u32 *reg_val1)
 {
 	struct i40e_aq_desc desc;
 	struct i40e_aqc_alternate_write *cmd_resp =

drivers/net/ethernet/intel/i40e/i40e_configfs.c

@@ -1,354 +0,0 @@
-/*******************************************************************************
- *
- * Intel Ethernet Controller XL710 Family Linux Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- ******************************************************************************/
-
-#include <linux/configfs.h>
-#include "i40e.h"
-
-#if IS_ENABLED(CONFIG_I40E_CONFIGFS_FS)
-
-/**
- * configfs structure for i40e
- *
- * This file adds code for configfs support for the i40e driver.  This sets
- * up a filesystem under /sys/kernel/config in which configuration changes
- * can be made for the driver's netdevs.
- *
- * The initialization in this code creates the "i40e" entry in the configfs
- * system.  After that, the user needs to use mkdir to create configurations
- * for specific netdev ports; for example "mkdir eth3".  This code will verify
- * that such a netdev exists and that it is owned by i40e.
- *
- **/
-
-struct i40e_cfgfs_vsi {
-	struct config_item item;
-	struct i40e_vsi *vsi;
-};
-
-static inline struct i40e_cfgfs_vsi *to_i40e_cfgfs_vsi(struct config_item *item)
-{
-	return item ? container_of(item, struct i40e_cfgfs_vsi, item) : NULL;
-}
-
-static struct configfs_attribute i40e_cfgfs_vsi_attr_min_bw = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "min_bw",
-	.ca_mode = S_IRUGO | S_IWUSR,
-};
-
-static struct configfs_attribute i40e_cfgfs_vsi_attr_max_bw = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "max_bw",
-	.ca_mode = S_IRUGO | S_IWUSR,
-};
-
-static struct configfs_attribute i40e_cfgfs_vsi_attr_commit = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "commit",
-	.ca_mode = S_IRUGO | S_IWUSR,
-};
-
-static struct configfs_attribute i40e_cfgfs_vsi_attr_port_count = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "ports",
-	.ca_mode = S_IRUGO | S_IWUSR,
-};
-
-static struct configfs_attribute i40e_cfgfs_vsi_attr_part_count = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "partitions",
-	.ca_mode = S_IRUGO | S_IWUSR,
-};
-
-static struct configfs_attribute *i40e_cfgfs_vsi_attrs[] = {
-	&i40e_cfgfs_vsi_attr_min_bw,
-	&i40e_cfgfs_vsi_attr_max_bw,
-	&i40e_cfgfs_vsi_attr_commit,
-	&i40e_cfgfs_vsi_attr_port_count,
-	&i40e_cfgfs_vsi_attr_part_count,
-	NULL,
-};
-
-/**
- * i40e_cfgfs_vsi_attr_show - Show a VSI's NPAR BW partition info
- * @item: A pointer back to the configfs item created on driver load
- * @attr: A pointer to this item's configuration attribute
- * @page: A pointer to the output buffer
- **/
-static ssize_t i40e_cfgfs_vsi_attr_show(struct config_item *item,
-					struct configfs_attribute *attr,
-					char *page)
-{
-	struct i40e_cfgfs_vsi *i40e_cfgfs_vsi = to_i40e_cfgfs_vsi(item);
-	struct i40e_pf *pf = i40e_cfgfs_vsi->vsi->back;
-	ssize_t count;
-
-	if (i40e_cfgfs_vsi->vsi != pf->vsi[pf->lan_vsi])
-		return 0;
-
-	if (strncmp(attr->ca_name, "min_bw", 6) == 0)
-		count = sprintf(page, "%s %s %d%%\n",
-				i40e_cfgfs_vsi->vsi->netdev->name,
-				(pf->npar_min_bw & I40E_ALT_BW_RELATIVE_MASK) ?
-				"Relative Min BW" : "Absolute Min BW",
-				pf->npar_min_bw & I40E_ALT_BW_VALUE_MASK);
-	else if (strncmp(attr->ca_name, "max_bw", 6) == 0)
-		count = sprintf(page, "%s %s %d%%\n",
-				i40e_cfgfs_vsi->vsi->netdev->name,
-				(pf->npar_max_bw & I40E_ALT_BW_RELATIVE_MASK) ?
-				"Relative Max BW" : "Absolute Max BW",
-				pf->npar_max_bw & I40E_ALT_BW_VALUE_MASK);
-	else if (strncmp(attr->ca_name, "ports", 5) == 0)
-		count = sprintf(page, "%d\n",
-				pf->hw.num_ports);
-	else if (strncmp(attr->ca_name, "partitions", 10) == 0)
-		count = sprintf(page, "%d\n",
-				pf->hw.num_partitions);
-	else
-		return 0;
-
-	return count;
-}
-
-/**
- * i40e_cfgfs_vsi_attr_store - Show a VSI's NPAR BW partition info
- * @item: A pointer back to the configfs item created on driver load
- * @attr: A pointer to this item's configuration attribute
- * @page: A pointer to the user input buffer holding the user input values
- **/
-static ssize_t i40e_cfgfs_vsi_attr_store(struct config_item *item,
-					 struct configfs_attribute *attr,
-					 const char *page, size_t count)
-{
-	struct i40e_cfgfs_vsi *i40e_cfgfs_vsi = to_i40e_cfgfs_vsi(item);
-	struct i40e_pf *pf = i40e_cfgfs_vsi->vsi->back;
-	char *p = (char *)page;
-	int rc;
-	unsigned long tmp;
-
-	if (i40e_cfgfs_vsi->vsi != pf->vsi[pf->lan_vsi])
-		return 0;
-
-	if (!p || (*p && (*p == '\n')))
-		return -EINVAL;
-
-	rc = kstrtoul(p, 10, &tmp);
-	if (rc)
-		return rc;
-	if (tmp > 100)
-		return -ERANGE;
-
-	if (strncmp(attr->ca_name, "min_bw", 6) == 0) {
-		if (tmp > (pf->npar_max_bw & I40E_ALT_BW_VALUE_MASK))
-			return -ERANGE;
-		/* Preserve the valid and relative BW bits - the rest is
-		 * don't care.
-		 */
-		pf->npar_min_bw &= (I40E_ALT_BW_RELATIVE_MASK |
-				    I40E_ALT_BW_VALID_MASK);
-		pf->npar_min_bw |= (tmp & I40E_ALT_BW_VALUE_MASK);
-		i40e_set_npar_bw_setting(pf);
-	} else if (strncmp(attr->ca_name, "max_bw", 6) == 0) {
-		if (tmp < 1 ||
-		    tmp < (pf->npar_min_bw & I40E_ALT_BW_VALUE_MASK))
-			return -ERANGE;
-		/* Preserve the valid and relative BW bits - the rest is
-		 * don't care.
-		 */
-		pf->npar_max_bw &= (I40E_ALT_BW_RELATIVE_MASK |
-				    I40E_ALT_BW_VALID_MASK);
-		pf->npar_max_bw |= (tmp & I40E_ALT_BW_VALUE_MASK);
-		i40e_set_npar_bw_setting(pf);
-	} else if (strncmp(attr->ca_name, "commit", 6) == 0 && tmp == 1) {
-		if (i40e_commit_npar_bw_setting(pf))
-			return -EIO;
-	}
-
-	return count;
-}
-
-/**
- * i40e_cfgfs_vsi_release - Free up the configuration item memory
- * @item: A pointer back to the configfs item created on driver load
- **/
-static void i40e_cfgfs_vsi_release(struct config_item *item)
-{
-	kfree(to_i40e_cfgfs_vsi(item));
-}
-
-static struct configfs_item_operations i40e_cfgfs_vsi_item_ops = {
-	.release		= i40e_cfgfs_vsi_release,
-	.show_attribute		= i40e_cfgfs_vsi_attr_show,
-	.store_attribute	= i40e_cfgfs_vsi_attr_store,
-};
-
-static struct config_item_type i40e_cfgfs_vsi_type = {
-	.ct_item_ops	= &i40e_cfgfs_vsi_item_ops,
-	.ct_attrs	= i40e_cfgfs_vsi_attrs,
-	.ct_owner	= THIS_MODULE,
-};
-
-struct i40e_cfgfs_group {
-	struct config_group group;
-};
-
-/**
- * to_i40e_cfgfs_group - Get the group pointer from the config item
- * @item: A pointer back to the configfs item created on driver load
- **/
-static inline struct i40e_cfgfs_group *
-to_i40e_cfgfs_group(struct config_item *item)
-{
-	return item ? container_of(to_config_group(item),
-				   struct i40e_cfgfs_group, group) : NULL;
-}
-
-/**
- * i40e_cfgfs_group_make_item - Create the configfs item with group container
- * @group: A pointer to our configfs group
- * @name: A pointer to the nume of the device we're looking for
- **/
-static struct config_item *
-i40e_cfgfs_group_make_item(struct config_group *group, const char *name)
-{
-	struct i40e_cfgfs_vsi *i40e_cfgfs_vsi;
-	struct net_device *netdev;
-	struct i40e_netdev_priv *np;
-
-	read_lock(&dev_base_lock);
-	netdev = first_net_device(&init_net);
-	while (netdev) {
-		if (strncmp(netdev->name, name, sizeof(netdev->name)) == 0)
-			break;
-		netdev = next_net_device(netdev);
-	}
-	read_unlock(&dev_base_lock);
-
-	if (!netdev)
-		return ERR_PTR(-ENODEV);
-
-	/* is this netdev owned by i40e? */
-	if (netdev->netdev_ops->ndo_open != i40e_open)
-		return ERR_PTR(-EACCES);
-
-	i40e_cfgfs_vsi = kzalloc(sizeof(*i40e_cfgfs_vsi), GFP_KERNEL);
-	if (!i40e_cfgfs_vsi)
-		return ERR_PTR(-ENOMEM);
-
-	np = netdev_priv(netdev);
-	i40e_cfgfs_vsi->vsi = np->vsi;
-	config_item_init_type_name(&i40e_cfgfs_vsi->item, name,
-				   &i40e_cfgfs_vsi_type);
-
-	return &i40e_cfgfs_vsi->item;
-}
-
-static struct configfs_attribute i40e_cfgfs_group_attr_description = {
-	.ca_owner = THIS_MODULE,
-	.ca_name = "description",
-	.ca_mode = S_IRUGO,
-};
-
-static struct configfs_attribute *i40e_cfgfs_group_attrs[] = {
-	&i40e_cfgfs_group_attr_description,
-	NULL,
-};
-
-static ssize_t i40e_cfgfs_group_attr_show(struct config_item *item,
-					  struct configfs_attribute *attr,
-					  char *page)
-{
-	return sprintf(page,
-"i40e\n"
-"\n"
-"This subsystem allows the modification of network port configurations.\n"
-"To start, use the name of the network port to be configured in a 'mkdir'\n"
-"command, e.g. 'mkdir eth3'.\n");
-}
-
-static void i40e_cfgfs_group_release(struct config_item *item)
-{
-	kfree(to_i40e_cfgfs_group(item));
-}
-
-static struct configfs_item_operations i40e_cfgfs_group_item_ops = {
-	.release	= i40e_cfgfs_group_release,
-	.show_attribute	= i40e_cfgfs_group_attr_show,
-};
-
-/* Note that, since no extra work is required on ->drop_item(),
- * no ->drop_item() is provided.
- */
-static struct configfs_group_operations i40e_cfgfs_group_ops = {
-	.make_item	= i40e_cfgfs_group_make_item,
-};
-
-static struct config_item_type i40e_cfgfs_group_type = {
-	.ct_item_ops	= &i40e_cfgfs_group_item_ops,
-	.ct_group_ops	= &i40e_cfgfs_group_ops,
-	.ct_attrs	= i40e_cfgfs_group_attrs,
-	.ct_owner	= THIS_MODULE,
-};
-
-static struct configfs_subsystem i40e_cfgfs_group_subsys = {
-	.su_group = {
-		.cg_item = {
-			.ci_namebuf = "i40e",
-			.ci_type = &i40e_cfgfs_group_type,
-		},
-	},
-};
-
-/**
- * i40e_configfs_init - Initialize configfs support for our driver
- **/
-int i40e_configfs_init(void)
-{
-	int ret;
-	struct configfs_subsystem *subsys;
-
-	subsys = &i40e_cfgfs_group_subsys;
-
-	config_group_init(&subsys->su_group);
-	mutex_init(&subsys->su_mutex);
-	ret = configfs_register_subsystem(subsys);
-	if (ret) {
-		pr_err("Error %d while registering configfs subsystem %s\n",
-		       ret, subsys->su_group.cg_item.ci_namebuf);
-		return ret;
-	}
-
-	return 0;
-}
-
-/**
- * i40e_configfs_init - Bail out - unregister configfs subsystem and release
- **/
-void i40e_configfs_exit(void)
-{
-	configfs_unregister_subsystem(&i40e_cfgfs_group_subsys);
-}
-#endif /* IS_ENABLED(CONFIG_I40E_CONFIGFS_FS) */

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

@@ -1224,7 +1224,7 @@ static int i40e_get_sset_count(struct net_device *netdev, int sset)
 	case ETH_SS_TEST:
 		return I40E_TEST_LEN;
 	case ETH_SS_STATS:
-		if (vsi == pf->vsi[pf->lan_vsi]) {
+		if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
 			int len = I40E_PF_STATS_LEN(netdev);
 
 			if (pf->lan_veb != I40E_NO_VEB)
@@ -1297,7 +1297,7 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 		i += 2;
 	}
 	rcu_read_unlock();
-	if (vsi != pf->vsi[pf->lan_vsi])
+	if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
 		return;
 
 	if (pf->lan_veb != I40E_NO_VEB) {
@@ -1370,7 +1370,7 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
 			p += ETH_GSTRING_LEN;
 		}
-		if (vsi != pf->vsi[pf->lan_vsi])
+		if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
 			return;
 
 		if (pf->lan_veb != I40E_NO_VEB) {

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -39,7 +39,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 1
 #define DRV_VERSION_MINOR 2
-#define DRV_VERSION_BUILD 11
+#define DRV_VERSION_BUILD 12
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
@@ -1541,7 +1541,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 			vsi->tc_config.tc_info[i].qoffset = offset;
 			vsi->tc_config.tc_info[i].qcount = qcount;
 
-			/* find the power-of-2 of the number of queue pairs */
+			/* find the next higher power-of-2 of num queue pairs */
 			num_qps = qcount;
 			pow = 0;
 			while (num_qps && ((1 << pow) < qcount)) {
@@ -5345,9 +5345,9 @@ static void i40e_service_event_complete(struct i40e_pf *pf)
  * i40e_get_cur_guaranteed_fd_count - Get the consumed guaranteed FD filters
  * @pf: board private structure
  **/
-int i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
+u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
 {
-	int val, fcnt_prog;
+	u32 val, fcnt_prog;
 
 	val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
 	fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK);
@@ -5355,12 +5355,13 @@ int i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf)
 }
 
 /**
- * i40e_get_current_fd_count - Get the count of total FD filters programmed
+ * i40e_get_current_fd_count - Get total FD filters programmed for this PF
  * @pf: board private structure
  **/
-int i40e_get_current_fd_count(struct i40e_pf *pf)
+u32 i40e_get_current_fd_count(struct i40e_pf *pf)
 {
-	int val, fcnt_prog;
+	u32 val, fcnt_prog;
+
 	val = rd32(&pf->hw, I40E_PFQF_FDSTAT);
 	fcnt_prog = (val & I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) +
 		    ((val & I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
@@ -5368,6 +5369,21 @@ int i40e_get_current_fd_count(struct i40e_pf *pf)
 	return fcnt_prog;
 }
 
+/**
+ * i40e_get_global_fd_count - Get total FD filters programmed on device
+ * @pf: board private structure
+ **/
+u32 i40e_get_global_fd_count(struct i40e_pf *pf)
+{
+	u32 val, fcnt_prog;
+
+	val = rd32(&pf->hw, I40E_GLQF_FDCNT_0);
+	fcnt_prog = (val & I40E_GLQF_FDCNT_0_GUARANT_CNT_MASK) +
+		    ((val & I40E_GLQF_FDCNT_0_BESTCNT_MASK) >>
+		     I40E_GLQF_FDCNT_0_BESTCNT_SHIFT);
+	return fcnt_prog;
+}
+
 /**
  * i40e_fdir_check_and_reenable - Function to reenabe FD ATR or SB if disabled
  * @pf: board private structure
@@ -5382,7 +5398,7 @@ void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
 	/* Check if, FD SB or ATR was auto disabled and if there is enough room
 	 * to re-enable
 	 */
-	fcnt_prog = i40e_get_cur_guaranteed_fd_count(pf);
+	fcnt_prog = i40e_get_global_fd_count(pf);
 	fcnt_avail = pf->fdir_pf_filter_count;
 	if ((fcnt_prog < (fcnt_avail - I40E_FDIR_BUFFER_HEAD_ROOM)) ||
 	    (pf->fd_add_err == 0) ||
@@ -5404,13 +5420,17 @@ void i40e_fdir_check_and_reenable(struct i40e_pf *pf)
 }
 
 #define I40E_MIN_FD_FLUSH_INTERVAL 10
+#define I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE 30
 /**
  * i40e_fdir_flush_and_replay - Function to flush all FD filters and replay SB
  * @pf: board private structure
  **/
 static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 {
+	unsigned long min_flush_time;
 	int flush_wait_retry = 50;
+	bool disable_atr = false;
+	int fd_room;
 	int reg;
 
 	if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
@@ -5418,9 +5438,20 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 
 	if (time_after(jiffies, pf->fd_flush_timestamp +
 				(I40E_MIN_FD_FLUSH_INTERVAL * HZ))) {
-		set_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state);
+		/* If the flush is happening too quick and we have mostly
+		 * SB rules we should not re-enable ATR for some time.
+		 */
+		min_flush_time = pf->fd_flush_timestamp
+				+ (I40E_MIN_FD_FLUSH_SB_ATR_UNSTABLE * HZ);
+		fd_room = pf->fdir_pf_filter_count - pf->fdir_pf_active_filters;
+
+		if (!(time_after(jiffies, min_flush_time)) &&
+		    (fd_room < I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR)) {
+			dev_info(&pf->pdev->dev, "ATR disabled, not enough FD filter space.\n");
+			disable_atr = true;
+		}
+
 		pf->fd_flush_timestamp = jiffies;
-		pf->auto_disable_flags |= I40E_FLAG_FD_SB_ENABLED;
 		pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
 		/* flush all filters */
 		wr32(&pf->hw, I40E_PFQF_CTL_1,
@@ -5440,10 +5471,8 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
 		} else {
 			/* replay sideband filters */
 			i40e_fdir_filter_restore(pf->vsi[pf->lan_vsi]);
-
-			pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
-			pf->auto_disable_flags &= ~I40E_FLAG_FD_ATR_ENABLED;
-			pf->auto_disable_flags &= ~I40E_FLAG_FD_SB_ENABLED;
+			if (!disable_atr)
+				pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
 			clear_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state);
 			dev_info(&pf->pdev->dev, "FD Filter table flushed and FD-SB replayed.\n");
 		}
@@ -5454,7 +5483,7 @@ static void i40e_fdir_flush_and_replay(struct i40e_pf *pf)
  * i40e_get_current_atr_count - Get the count of total FD ATR filters programmed
  * @pf: board private structure
  **/
-int i40e_get_current_atr_cnt(struct i40e_pf *pf)
+u32 i40e_get_current_atr_cnt(struct i40e_pf *pf)
 {
 	return i40e_get_current_fd_count(pf) - pf->fdir_pf_active_filters;
 }
@@ -5480,9 +5509,7 @@ static void i40e_fdir_reinit_subtask(struct i40e_pf *pf)
 	if (!(pf->flags & (I40E_FLAG_FD_SB_ENABLED | I40E_FLAG_FD_ATR_ENABLED)))
 		return;
 
-	if ((pf->fd_add_err >= I40E_MAX_FD_PROGRAM_ERROR) &&
-	    (i40e_get_current_atr_cnt(pf) >= pf->fd_atr_cnt) &&
-	    (i40e_get_current_atr_cnt(pf) > pf->fdir_pf_filter_count))
+	if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
 		i40e_fdir_flush_and_replay(pf);
 
 	i40e_fdir_check_and_reenable(pf);
@@ -5912,6 +5939,74 @@ static void i40e_verify_eeprom(struct i40e_pf *pf)
 	}
 }
 
+/**
+ * i40e_enable_pf_switch_lb
+ * @pf: pointer to the pf structure
+ *
+ * enable switch loop back or die - no point in a return value
+ **/
+static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
+{
+	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
+	struct i40e_vsi_context ctxt;
+	int aq_ret;
+
+	ctxt.seid = pf->main_vsi_seid;
+	ctxt.pf_num = pf->hw.pf_id;
+	ctxt.vf_num = 0;
+	aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
+	if (aq_ret) {
+		dev_info(&pf->pdev->dev,
+			 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
+			 __func__, aq_ret, pf->hw.aq.asq_last_status);
+		return;
+	}
+	ctxt.flags = I40E_AQ_VSI_TYPE_PF;
+	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
+	ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
+
+	aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
+	if (aq_ret) {
+		dev_info(&pf->pdev->dev,
+			 "%s: update vsi switch failed, aq_err=%d\n",
+			 __func__, vsi->back->hw.aq.asq_last_status);
+	}
+}
+
+/**
+ * i40e_disable_pf_switch_lb
+ * @pf: pointer to the pf structure
+ *
+ * disable switch loop back or die - no point in a return value
+ **/
+static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
+{
+	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
+	struct i40e_vsi_context ctxt;
+	int aq_ret;
+
+	ctxt.seid = pf->main_vsi_seid;
+	ctxt.pf_num = pf->hw.pf_id;
+	ctxt.vf_num = 0;
+	aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
+	if (aq_ret) {
+		dev_info(&pf->pdev->dev,
+			 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
+			 __func__, aq_ret, pf->hw.aq.asq_last_status);
+		return;
+	}
+	ctxt.flags = I40E_AQ_VSI_TYPE_PF;
+	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
+	ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
+
+	aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
+	if (aq_ret) {
+		dev_info(&pf->pdev->dev,
+			 "%s: update vsi switch failed, aq_err=%d\n",
+			 __func__, vsi->back->hw.aq.asq_last_status);
+	}
+}
+
 /**
  * i40e_config_bridge_mode - Configure the HW bridge mode
  * @veb: pointer to the bridge instance
@@ -6940,7 +7035,7 @@ static int i40e_reserve_msix_vectors(struct i40e_pf *pf, int vectors)
 static int i40e_init_msix(struct i40e_pf *pf)
 {
 	struct i40e_hw *hw = &pf->hw;
-	int other_vecs = 0;
+	int vectors_left;
 	int v_budget, i;
 	int v_actual;
 
@@ -6964,25 +7059,62 @@ static int i40e_init_msix(struct i40e_pf *pf)
 	 * If we can't get what we want, we'll simplify to nearly nothing
 	 * and try again.  If that still fails, we punt.
 	 */
-	pf->num_lan_msix = min_t(int, num_online_cpus(),
-				 hw->func_caps.num_msix_vectors);
-	pf->num_vmdq_msix = pf->num_vmdq_qps;
-	other_vecs = 1;
-	other_vecs += (pf->num_vmdq_vsis * pf->num_vmdq_msix);
-	if (pf->flags & I40E_FLAG_FD_SB_ENABLED)
-		other_vecs++;
-
-	/* Scale down if necessary, and the rings will share vectors */
-	pf->num_lan_msix = min_t(int, pf->num_lan_msix,
-			(hw->func_caps.num_msix_vectors - other_vecs));
-	v_budget = pf->num_lan_msix + other_vecs;
+	vectors_left = hw->func_caps.num_msix_vectors;
+	v_budget = 0;
+
+	/* reserve one vector for miscellaneous handler */
+	if (vectors_left) {
+		v_budget++;
+		vectors_left--;
+	}
+
+	/* reserve vectors for the main PF traffic queues */
+	pf->num_lan_msix = min_t(int, num_online_cpus(), vectors_left);
+	vectors_left -= pf->num_lan_msix;
+	v_budget += pf->num_lan_msix;
+
+	/* reserve one vector for sideband flow director */
+	if (pf->flags & I40E_FLAG_FD_SB_ENABLED) {
+		if (vectors_left) {
+			v_budget++;
+			vectors_left--;
+		} else {
+			pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
+		}
+	}
 
 #ifdef I40E_FCOE
+	/* can we reserve enough for FCoE? */
 	if (pf->flags & I40E_FLAG_FCOE_ENABLED) {
-		pf->num_fcoe_msix = pf->num_fcoe_qps;
+		if (!vectors_left)
+			pf->num_fcoe_msix = 0;
+		else if (vectors_left >= pf->num_fcoe_qps)
+			pf->num_fcoe_msix = pf->num_fcoe_qps;
+		else
+			pf->num_fcoe_msix = 1;
 		v_budget += pf->num_fcoe_msix;
+		vectors_left -= pf->num_fcoe_msix;
 	}
+
 #endif
+	/* any vectors left over go for VMDq support */
+	if (pf->flags & I40E_FLAG_VMDQ_ENABLED) {
+		int vmdq_vecs_wanted = pf->num_vmdq_vsis * pf->num_vmdq_qps;
+		int vmdq_vecs = min_t(int, vectors_left, vmdq_vecs_wanted);
+
+		/* if we're short on vectors for what's desired, we limit
+		 * the queues per vmdq.  If this is still more than are
+		 * available, the user will need to change the number of
+		 * queues/vectors used by the PF later with the ethtool
+		 * channels command
+		 */
+		if (vmdq_vecs < vmdq_vecs_wanted)
+			pf->num_vmdq_qps = 1;
+		pf->num_vmdq_msix = pf->num_vmdq_qps;
+
+		v_budget += vmdq_vecs;
+		vectors_left -= vmdq_vecs;
+	}
 
 	pf->msix_entries = kcalloc(v_budget, sizeof(struct msix_entry),
 				   GFP_KERNEL);
@@ -7028,6 +7160,8 @@ static int i40e_init_msix(struct i40e_pf *pf)
 		/* Scale vector usage down */
 		pf->num_vmdq_msix = 1;    /* force VMDqs to only one vector */
 		pf->num_vmdq_vsis = 1;
+		pf->num_vmdq_qps = 1;
+		pf->flags &= ~I40E_FLAG_FD_SB_ENABLED;
 
 		/* partition out the remaining vectors */
 		switch (vec) {
@@ -7053,10 +7187,8 @@ static int i40e_init_msix(struct i40e_pf *pf)
 				vec--;
 			}
 #endif
-			pf->num_lan_msix = min_t(int, (vec / 2),
-						 pf->num_lan_qps);
-			pf->num_vmdq_vsis = min_t(int, (vec - pf->num_lan_msix),
-						  I40E_DEFAULT_NUM_VMDQ_VSI);
+			/* give the rest to the PF */
+			pf->num_lan_msix = min_t(int, vec, pf->num_lan_qps);
 			break;
 		}
 	}
@@ -7266,13 +7398,10 @@ static int i40e_config_rss(struct i40e_pf *pf)
 
 	/* Check capability and Set table size and register per hw expectation*/
 	reg_val = rd32(hw, I40E_PFQF_CTL_0);
-	if (hw->func_caps.rss_table_size == 512) {
+	if (pf->rss_table_size == 512)
 		reg_val |= I40E_PFQF_CTL_0_HASHLUTSIZE_512;
-		pf->rss_table_size = 512;
-	} else {
-		pf->rss_table_size = 128;
+	else
 		reg_val &= ~I40E_PFQF_CTL_0_HASHLUTSIZE_512;
-	}
 	wr32(hw, I40E_PFQF_CTL_0, reg_val);
 
 	/* Populate the LUT with max no. of queues in round robin fashion */
@@ -7923,7 +8052,7 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 }
 #endif /* HAVE_BRIDGE_ATTRIBS */
 
-const struct net_device_ops i40e_netdev_ops = {
+static const struct net_device_ops i40e_netdev_ops = {
 	.ndo_open		= i40e_open,
 	.ndo_stop		= i40e_close,
 	.ndo_start_xmit		= i40e_lan_xmit_frame,
@@ -9238,14 +9367,6 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf, bool reinit)
 	i40e_aq_get_link_info(&pf->hw, true, NULL, NULL);
 	i40e_link_event(pf);
 
-	/* Initialize user-specific link properties */
-	pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info &
-				  I40E_AQ_AN_COMPLETED) ? true : false);
-
-	/* fill in link information and enable LSE reporting */
-	i40e_aq_get_link_info(&pf->hw, true, NULL, NULL);
-	i40e_link_event(pf);
-
 	/* Initialize user-specific link properties */
 	pf->fc_autoneg_status = ((pf->hw.phy.link_info.an_info &
 				  I40E_AQ_AN_COMPLETED) ? true : false);
@@ -10166,9 +10287,6 @@ static int __init i40e_init_module(void)
 		i40e_driver_string, i40e_driver_version_str);
 	pr_info("%s: %s\n", i40e_driver_name, i40e_copyright);
 
-#if IS_ENABLED(CONFIG_I40E_CONFIGFS_FS)
-	i40e_configfs_init();
-#endif /* CONFIG_I40E_CONFIGFS_FS */
 	i40e_dbg_init();
 	return pci_register_driver(&i40e_driver);
 }
@@ -10184,8 +10302,5 @@ static void __exit i40e_exit_module(void)
 {
 	pci_unregister_driver(&i40e_driver);
 	i40e_dbg_exit();
-#if IS_ENABLED(CONFIG_I40E_CONFIGFS_FS)
-	i40e_configfs_exit();
-#endif /* CONFIG_I40E_CONFIGFS_FS */
 }
 module_exit(i40e_exit_module);

drivers/net/ethernet/intel/i40e/i40e_nvm.c

@@ -171,8 +171,8 @@ static i40e_status i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw)
  *
  * Reads one 16 bit word from the Shadow RAM using the GLNVM_SRCTL register.
  **/
-i40e_status i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
-				     u16 *data)
+static i40e_status i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
+					    u16 *data)
 {
 	i40e_status ret_code = I40E_ERR_TIMEOUT;
 	u32 sr_reg;
@@ -200,7 +200,6 @@ i40e_status i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
 			*data = (u16)((sr_reg &
 				       I40E_GLNVM_SRDATA_RDDATA_MASK)
 				    >> I40E_GLNVM_SRDATA_RDDATA_SHIFT);
-			*data = le16_to_cpu(*data);
 		}
 	}
 	if (ret_code)
@@ -237,8 +236,8 @@ i40e_status i40e_read_nvm_word(struct i40e_hw *hw, u16 offset,
  * method. The buffer read is preceded by the NVM ownership take
  * and followed by the release.
  **/
-i40e_status i40e_read_nvm_buffer_srctl(struct i40e_hw *hw, u16 offset,
-				       u16 *words, u16 *data)
+static i40e_status i40e_read_nvm_buffer_srctl(struct i40e_hw *hw, u16 offset,
+					      u16 *words, u16 *data)
 {
 	i40e_status ret_code = 0;
 	u16 index, word;

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

@@ -228,7 +228,7 @@ static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi,
 			 "PCTYPE:%d, Filter command send failed for fd_id:%d (ret = %d)\n",
 			 fd_data->pctype, fd_data->fd_id, ret);
 		err = true;
-	} else {
+	} else if (I40E_DEBUG_FD & pf->hw.debug_mask) {
 		if (add)
 			dev_info(&pf->pdev->dev,
 				 "Filter OK for PCTYPE %d loc = %d\n",
@@ -303,7 +303,7 @@ static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
 			 "PCTYPE:%d, Filter command send failed for fd_id:%d (ret = %d)\n",
 			 fd_data->pctype, fd_data->fd_id, ret);
 		err = true;
-	} else {
+	} else if (I40E_DEBUG_FD & pf->hw.debug_mask) {
 		if (add)
 			dev_info(&pf->pdev->dev, "Filter OK for PCTYPE %d loc = %d)\n",
 				 fd_data->pctype, fd_data->fd_id);
@@ -376,7 +376,7 @@ static int i40e_add_del_fdir_ipv4(struct i40e_vsi *vsi,
 				 "PCTYPE:%d, Filter command send failed for fd_id:%d (ret = %d)\n",
 				 fd_data->pctype, fd_data->fd_id, ret);
 			err = true;
-		} else {
+		} else if (I40E_DEBUG_FD & pf->hw.debug_mask) {
 			if (add)
 				dev_info(&pf->pdev->dev,
 					 "Filter OK for PCTYPE %d loc = %d\n",
@@ -471,12 +471,27 @@ static void i40e_fd_handle_status(struct i40e_ring *rx_ring,
 			dev_warn(&pdev->dev, "ntuple filter loc = %d, could not be added\n",
 				 rx_desc->wb.qword0.hi_dword.fd_id);
 
+		/* Check if the programming error is for ATR.
+		 * If so, auto disable ATR and set a state for
+		 * flush in progress. Next time we come here if flush is in
+		 * progress do nothing, once flush is complete the state will
+		 * be cleared.
+		 */
+		if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
+			return;
+
 		pf->fd_add_err++;
 		/* store the current atr filter count */
 		pf->fd_atr_cnt = i40e_get_current_atr_cnt(pf);
 
+		if ((rx_desc->wb.qword0.hi_dword.fd_id == 0) &&
+		    (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)) {
+			pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
+			set_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state);
+		}
+
 		/* filter programming failed most likely due to table full */
-		fcnt_prog = i40e_get_cur_guaranteed_fd_count(pf);
+		fcnt_prog = i40e_get_global_fd_count(pf);
 		fcnt_avail = pf->fdir_pf_filter_count;
 		/* If ATR is running fcnt_prog can quickly change,
 		 * if we are very close to full, it makes sense to disable
@@ -755,6 +770,8 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 			tx_desc = I40E_TX_DESC(tx_ring, 0);
 		}
 
+		prefetch(tx_desc);
+
 		/* update budget accounting */
 		budget--;
 	} while (likely(budget));
@@ -1044,7 +1061,7 @@ void i40e_clean_rx_ring(struct i40e_ring *rx_ring)
 			for (i = 0; i < rx_ring->count; i++) {
 				rx_bi = &rx_ring->rx_bi[i];
 				rx_bi->dma = 0;
-				rx_bi->hdr_buf = 0;
+				rx_bi->hdr_buf = NULL;
 			}
 		}
 	}
@@ -1926,6 +1943,9 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	if (!(pf->flags & I40E_FLAG_FD_ATR_ENABLED))
 		return;
 
+	if ((pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED))
+		return;
+
 	/* if sampling is disabled do nothing */
 	if (!tx_ring->atr_sample_rate)
 		return;
@@ -2198,8 +2218,16 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 	struct iphdr *this_ip_hdr;
 	u32 network_hdr_len;
 	u8 l4_hdr = 0;
+	u32 l4_tunnel = 0;
 
 	if (skb->encapsulation) {
+		switch (ip_hdr(skb)->protocol) {
+		case IPPROTO_UDP:
+			l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
+			break;
+		default:
+			return;
+		}
 		network_hdr_len = skb_inner_network_header_len(skb);
 		this_ip_hdr = inner_ip_hdr(skb);
 		this_ipv6_hdr = inner_ipv6_hdr(skb);
@@ -2222,8 +2250,8 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 
 		/* Now set the ctx descriptor fields */
 		*cd_tunneling |= (skb_network_header_len(skb) >> 2) <<
-					I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
-				   I40E_TXD_CTX_UDP_TUNNELING            |
+				   I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT      |
+				   l4_tunnel                             |
 				   ((skb_inner_network_offset(skb) -
 					skb_transport_offset(skb)) >> 1) <<
 				   I40E_TXD_CTX_QW0_NATLEN_SHIFT;

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

@@ -709,74 +709,6 @@ complete_reset:
 	clear_bit(__I40E_VF_DISABLE, &pf->state);
 }
 
-/**
- * i40e_enable_pf_switch_lb
- * @pf: pointer to the pf structure
- *
- * enable switch loop back or die - no point in a return value
- **/
-void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
-{
-	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
-	struct i40e_vsi_context ctxt;
-	int aq_ret;
-
-	ctxt.seid = pf->main_vsi_seid;
-	ctxt.pf_num = pf->hw.pf_id;
-	ctxt.vf_num = 0;
-	aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
-	if (aq_ret) {
-		dev_info(&pf->pdev->dev,
-			 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
-			 __func__, aq_ret, pf->hw.aq.asq_last_status);
-		return;
-	}
-	ctxt.flags = I40E_AQ_VSI_TYPE_PF;
-	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
-	ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
-
-	aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
-	if (aq_ret) {
-		dev_info(&pf->pdev->dev,
-			 "%s: update vsi switch failed, aq_err=%d\n",
-			 __func__, vsi->back->hw.aq.asq_last_status);
-	}
-}
-
-/**
- * i40e_disable_pf_switch_lb
- * @pf: pointer to the pf structure
- *
- * disable switch loop back or die - no point in a return value
- **/
-void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
-{
-	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
-	struct i40e_vsi_context ctxt;
-	int aq_ret;
-
-	ctxt.seid = pf->main_vsi_seid;
-	ctxt.pf_num = pf->hw.pf_id;
-	ctxt.vf_num = 0;
-	aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
-	if (aq_ret) {
-		dev_info(&pf->pdev->dev,
-			 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
-			 __func__, aq_ret, pf->hw.aq.asq_last_status);
-		return;
-	}
-	ctxt.flags = I40E_AQ_VSI_TYPE_PF;
-	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
-	ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
-
-	aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
-	if (aq_ret) {
-		dev_info(&pf->pdev->dev,
-			 "%s: update vsi switch failed, aq_err=%d\n",
-			 __func__, vsi->back->hw.aq.asq_last_status);
-	}
-}
-
 /**
  * i40e_free_vfs
  * @pf: pointer to the pf structure

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

@@ -126,7 +126,5 @@ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable);
 
 void i40e_vc_notify_link_state(struct i40e_pf *pf);
 void i40e_vc_notify_reset(struct i40e_pf *pf);
-void i40e_enable_pf_switch_lb(struct i40e_pf *pf);
-void i40e_disable_pf_switch_lb(struct i40e_pf *pf);
 
 #endif /* _I40E_VIRTCHNL_PF_H_ */

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

@@ -85,9 +85,8 @@ void i40evf_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
 {
 	struct i40e_aq_desc *aq_desc = (struct i40e_aq_desc *)desc;
 	u16 len = le16_to_cpu(aq_desc->datalen);
-	u8 *aq_buffer = (u8 *)buffer;
-	u32 data[4];
-	u32 i = 0;
+	u8 *buf = (u8 *)buffer;
+	u16 i = 0;
 
 	if ((!(mask & hw->debug_mask)) || (desc == NULL))
 		return;
@@ -109,29 +108,30 @@ void i40evf_debug_aq(struct i40e_hw *hw, enum i40e_debug_mask mask, void *desc,
 		   le32_to_cpu(aq_desc->params.external.addr_low));
 
 	if ((buffer != NULL) && (aq_desc->datalen != 0)) {
-		memset(data, 0, sizeof(data));
 		i40e_debug(hw, mask, "AQ CMD Buffer:\n");
 		if (buf_len < len)
 			len = buf_len;
-		for (i = 0; i < len; i++) {
-			data[((i % 16) / 4)] |=
-				((u32)aq_buffer[i]) << (8 * (i % 4));
-			if ((i % 16) == 15) {
-				i40e_debug(hw, mask,
-					   "\t0x%04X  %08X %08X %08X %08X\n",
-					   i - 15, le32_to_cpu(data[0]),
-					   le32_to_cpu(data[1]),
-					   le32_to_cpu(data[2]),
-					   le32_to_cpu(data[3]));
-				memset(data, 0, sizeof(data));
-			}
+		/* write the full 16-byte chunks */
+		for (i = 0; i < (len - 16); i += 16)
+			i40e_debug(hw, mask,
+				   "\t0x%04X  %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n",
+				   i, buf[i], buf[i + 1], buf[i + 2],
+				   buf[i + 3], buf[i + 4], buf[i + 5],
+				   buf[i + 6], buf[i + 7], buf[i + 8],
+				   buf[i + 9], buf[i + 10], buf[i + 11],
+				   buf[i + 12], buf[i + 13], buf[i + 14],
+				   buf[i + 15]);
+		/* write whatever's left over without overrunning the buffer */
+		if (i < len) {
+			char d_buf[80];
+			int j = 0;
+
+			memset(d_buf, 0, sizeof(d_buf));
+			j += sprintf(d_buf, "\t0x%04X ", i);
+			while (i < len)
+				j += sprintf(&d_buf[j], " %02X", buf[i++]);
+			i40e_debug(hw, mask, "%s\n", d_buf);
 		}
-		if ((i % 16) != 0)
-			i40e_debug(hw, mask, "\t0x%04X  %08X %08X %08X %08X\n",
-				   i - (i % 16), le32_to_cpu(data[0]),
-				   le32_to_cpu(data[1]),
-				   le32_to_cpu(data[2]),
-				   le32_to_cpu(data[3]));
 	}
 }
 

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

@@ -289,6 +289,8 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 			tx_desc = I40E_TX_DESC(tx_ring, 0);
 		}
 
+		prefetch(tx_desc);
+
 		/* update budget accounting */
 		budget--;
 	} while (likely(budget));
@@ -542,7 +544,7 @@ void i40evf_clean_rx_ring(struct i40e_ring *rx_ring)
 			for (i = 0; i < rx_ring->count; i++) {
 				rx_bi = &rx_ring->rx_bi[i];
 				rx_bi->dma = 0;
-				rx_bi->hdr_buf = 0;
+				rx_bi->hdr_buf = NULL;
 			}
 		}
 	}
@@ -1461,8 +1463,16 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 	struct iphdr *this_ip_hdr;
 	u32 network_hdr_len;
 	u8 l4_hdr = 0;
+	u32 l4_tunnel = 0;
 
 	if (skb->encapsulation) {
+		switch (ip_hdr(skb)->protocol) {
+		case IPPROTO_UDP:
+			l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
+			break;
+		default:
+			return;
+		}
 		network_hdr_len = skb_inner_network_header_len(skb);
 		this_ip_hdr = inner_ip_hdr(skb);
 		this_ipv6_hdr = inner_ipv6_hdr(skb);
@@ -1485,8 +1495,8 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 
 		/* Now set the ctx descriptor fields */
 		*cd_tunneling |= (skb_network_header_len(skb) >> 2) <<
-					I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT |
-				   I40E_TXD_CTX_UDP_TUNNELING            |
+				   I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT      |
+				   l4_tunnel                             |
 				   ((skb_inner_network_offset(skb) -
 					skb_transport_offset(skb)) >> 1) <<
 				   I40E_TXD_CTX_QW0_NATLEN_SHIFT;

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

@@ -36,7 +36,7 @@ char i40evf_driver_name[] = "i40evf";
 static const char i40evf_driver_string[] =
 	"Intel(R) XL710/X710 Virtual Function Network Driver";
 
-#define DRV_VERSION "1.2.5"
+#define DRV_VERSION "1.2.6"
 const char i40evf_driver_version[] = DRV_VERSION;
 static const char i40evf_copyright[] =
 	"Copyright (c) 2013 - 2014 Intel Corporation.";