From 04a1e08cc734da60445c417e314a0f35a642861b Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Wed, 11 Apr 2018 10:08:18 +0800
Subject: [PATCH 1/9] i40evf: Replace GFP_ATOMIC with GFP_KERNEL in
 i40evf_add_vlan

i40evf_add_vlan() is never called in atomic context.

i40evf_add_vlan() is only called by i40evf_vlan_rx_add_vid(),
which is only set as ".ndo_vlan_rx_add_vid" in struct net_device_ops.
".ndo_vlan_rx_add_vid" is not called in atomic context.

Despite never getting called from atomic context,
i40evf_add_vlan() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.

This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 97cda4a8f8e0..8f775a82e2fa 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -681,7 +681,7 @@ i40evf_vlan_filter *i40evf_add_vlan(struct i40evf_adapter *adapter, u16 vlan)
 
 	f = i40evf_find_vlan(adapter, vlan);
 	if (!f) {
-		f = kzalloc(sizeof(*f), GFP_ATOMIC);
+		f = kzalloc(sizeof(*f), GFP_KERNEL);
 		if (!f)
 			goto clearout;
 

From f5254429e1756ad7fede0249c9b779e37b6c967f Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 20 Apr 2018 01:41:33 -0700
Subject: [PATCH 2/9] i40e/i40evf: cleanup incorrect function doxygen comments

Recent versions of the Linux kernel now warn about incorrect parameter
definitions for function comments. Fix up several function comments to
correctly reflect the current function arguments. This cleans up the
warnings and helps ensure our documentation is accurate.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_client.c |  6 +--
 drivers/net/ethernet/intel/i40e/i40e_common.c | 37 +++++++++++--------
 drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c | 11 +++---
 .../net/ethernet/intel/i40e/i40e_debugfs.c    |  8 ++--
 .../net/ethernet/intel/i40e/i40e_ethtool.c    | 24 +++++++-----
 drivers/net/ethernet/intel/i40e/i40e_hmc.c    |  1 -
 drivers/net/ethernet/intel/i40e/i40e_main.c   | 22 +++++++----
 drivers/net/ethernet/intel/i40e/i40e_nvm.c    |  1 +
 drivers/net/ethernet/intel/i40e/i40e_ptp.c    |  4 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   |  6 ++-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 16 ++++----
 .../net/ethernet/intel/i40evf/i40e_common.c   |  1 +
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c |  4 +-
 .../net/ethernet/intel/i40evf/i40evf_client.c |  4 +-
 .../ethernet/intel/i40evf/i40evf_ethtool.c    |  7 +++-
 .../net/ethernet/intel/i40evf/i40evf_main.c   |  5 ++-
 .../ethernet/intel/i40evf/i40evf_virtchnl.c   | 11 +-----
 17 files changed, 95 insertions(+), 73 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c b/drivers/net/ethernet/intel/i40e/i40e_client.c
index 2041757f948c..5f3b8b9ff511 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_client.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_client.c
@@ -40,7 +40,7 @@ static struct i40e_ops i40e_lan_ops = {
 /**
  * i40e_client_get_params - Get the params that can change at runtime
  * @vsi: the VSI with the message
- * @param: clinet param struct
+ * @params: client param struct
  *
  **/
 static
@@ -566,7 +566,7 @@ static int i40e_client_virtchnl_send(struct i40e_info *ldev,
  * i40e_client_setup_qvlist
  * @ldev: pointer to L2 context.
  * @client: Client pointer.
- * @qv_info: queue and vector list
+ * @qvlist_info: queue and vector list
  *
  * Return 0 on success or < 0 on error
  **/
@@ -641,7 +641,7 @@ err:
  * i40e_client_request_reset
  * @ldev: pointer to L2 context.
  * @client: Client pointer.
- * @level: reset level
+ * @reset_level: reset level
  **/
 static void i40e_client_request_reset(struct i40e_info *ldev,
 				      struct i40e_client *client,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 6f8fd70d606a..eb2d1530d331 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1671,6 +1671,8 @@ enum i40e_status_code i40e_aq_set_phy_config(struct i40e_hw *hw,
 /**
  * i40e_set_fc
  * @hw: pointer to the hw struct
+ * @aq_failures: buffer to return AdminQ failure information
+ * @atomic_restart: whether to enable atomic link restart
  *
  * Set the requested flow control mode using set_phy_config.
  **/
@@ -2807,8 +2809,8 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid,
  * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
  * @cmd_details: pointer to command details structure or NULL
  * @rule_id: Rule ID returned from FW
- * @rule_used: Number of rules used in internal switch
- * @rule_free: Number of rules free in internal switch
+ * @rules_used: Number of rules used in internal switch
+ * @rules_free: Number of rules free in internal switch
  *
  * Add/Delete a mirror rule to a specific switch. Mirror rules are supported for
  * VEBs/VEPA elements only
@@ -2868,8 +2870,8 @@ static i40e_status i40e_mirrorrule_op(struct i40e_hw *hw,
  * @mr_list: list of mirrored VSI SEIDs or VLAN IDs
  * @cmd_details: pointer to command details structure or NULL
  * @rule_id: Rule ID returned from FW
- * @rule_used: Number of rules used in internal switch
- * @rule_free: Number of rules free in internal switch
+ * @rules_used: Number of rules used in internal switch
+ * @rules_free: Number of rules free in internal switch
  *
  * Add mirror rule. Mirror rules are supported for VEBs or VEPA elements only
  **/
@@ -2899,8 +2901,8 @@ i40e_status i40e_aq_add_mirrorrule(struct i40e_hw *hw, u16 sw_seid,
  *		add_mirrorrule.
  * @mr_list: list of mirrored VLAN IDs to be removed
  * @cmd_details: pointer to command details structure or NULL
- * @rule_used: Number of rules used in internal switch
- * @rule_free: Number of rules free in internal switch
+ * @rules_used: Number of rules used in internal switch
+ * @rules_free: Number of rules free in internal switch
  *
  * Delete a mirror rule. Mirror rules are supported for VEBs/VEPA elements only
  **/
@@ -3648,6 +3650,8 @@ i40e_status i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent,
 /**
  * i40e_aq_start_lldp
  * @hw: pointer to the hw struct
+ * @buff: buffer for result
+ * @buff_size: buffer size
  * @cmd_details: pointer to command details structure or NULL
  *
  * Start the embedded LLDP Agent on all ports.
@@ -3728,7 +3732,6 @@ i40e_status i40e_aq_get_cee_dcb_config(struct i40e_hw *hw,
  * i40e_aq_add_udp_tunnel
  * @hw: pointer to the hw struct
  * @udp_port: the UDP port to add in Host byte order
- * @header_len: length of the tunneling header length in DWords
  * @protocol_index: protocol index type
  * @filter_index: pointer to filter index
  * @cmd_details: pointer to command details structure or NULL
@@ -3947,6 +3950,7 @@ i40e_status i40e_aq_config_vsi_tc_bw(struct i40e_hw *hw,
  * @hw: pointer to the hw struct
  * @seid: seid of the switching component connected to Physical Port
  * @ets_data: Buffer holding ETS parameters
+ * @opcode: Tx scheduler AQ command opcode
  * @cmd_details: pointer to command details structure or NULL
  **/
 i40e_status i40e_aq_config_switch_comp_ets(struct i40e_hw *hw,
@@ -4290,10 +4294,10 @@ i40e_status i40e_aq_add_rem_control_packet_filter(struct i40e_hw *hw,
  * @hw: pointer to the hw struct
  * @seid: VSI seid to add ethertype filter from
  **/
-#define I40E_FLOW_CONTROL_ETHTYPE 0x8808
 void i40e_add_filter_to_drop_tx_flow_control_frames(struct i40e_hw *hw,
 						    u16 seid)
 {
+#define I40E_FLOW_CONTROL_ETHTYPE 0x8808
 	u16 flag = I40E_AQC_ADD_CONTROL_PACKET_FLAGS_IGNORE_MAC |
 		   I40E_AQC_ADD_CONTROL_PACKET_FLAGS_DROP |
 		   I40E_AQC_ADD_CONTROL_PACKET_FLAGS_TX;
@@ -4424,6 +4428,7 @@ void i40e_set_pci_config_data(struct i40e_hw *hw, u16 link_status)
  * @ret_buff_size: actual buffer size returned
  * @ret_next_table: next block to read
  * @ret_next_index: next index to read
+ * @cmd_details: pointer to command details structure or NULL
  *
  * Dump internal FW/HW data for debug purposes.
  *
@@ -4550,7 +4555,7 @@ i40e_status i40e_aq_configure_partition_bw(struct i40e_hw *hw,
  * i40e_read_phy_register_clause22
  * @hw: pointer to the HW structure
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Reads specified PHY register value
@@ -4595,7 +4600,7 @@ i40e_status i40e_read_phy_register_clause22(struct i40e_hw *hw,
  * i40e_write_phy_register_clause22
  * @hw: pointer to the HW structure
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Writes specified PHY register value
@@ -4636,7 +4641,7 @@ i40e_status i40e_write_phy_register_clause22(struct i40e_hw *hw,
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Reads specified PHY register value
@@ -4710,7 +4715,7 @@ phy_read_end:
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Writes value to specified PHY register
@@ -4777,7 +4782,7 @@ phy_write_end:
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Writes value to specified PHY register
@@ -4813,7 +4818,7 @@ i40e_status i40e_write_phy_register(struct i40e_hw *hw,
  * @hw: pointer to the HW structure
  * @page: registers page number
  * @reg: register address in the page
- * @phy_adr: PHY address on MDIO interface
+ * @phy_addr: PHY address on MDIO interface
  * @value: PHY register value
  *
  * Reads specified PHY register value
@@ -4848,7 +4853,6 @@ i40e_status i40e_read_phy_register(struct i40e_hw *hw,
  * i40e_get_phy_address
  * @hw: pointer to the HW structure
  * @dev_num: PHY port num that address we want
- * @phy_addr: Returned PHY address
  *
  * Gets PHY address for current port
  **/
@@ -5058,7 +5062,9 @@ i40e_status i40e_led_get_phy(struct i40e_hw *hw, u16 *led_addr,
  * i40e_led_set_phy
  * @hw: pointer to the HW structure
  * @on: true or false
+ * @led_addr: address of led register to use
  * @mode: original val plus bit for set or ignore
+ *
  * Set led's on or off when controlled by the PHY
  *
  **/
@@ -5347,6 +5353,7 @@ i40e_status_code i40e_aq_write_ddp(struct i40e_hw *hw, void *buff,
  * @hw: pointer to the hw struct
  * @buff: command buffer (size in bytes = buff_size)
  * @buff_size: buffer size in bytes
+ * @flags: AdminQ command flags
  * @cmd_details: pointer to command details structure or NULL
  **/
 enum
diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
index a09d723d5ca0..9deae9a35423 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
@@ -23,7 +23,7 @@ static void i40e_get_pfc_delay(struct i40e_hw *hw, u16 *delay)
 
 /**
  * i40e_dcbnl_ieee_getets - retrieve local IEEE ETS configuration
- * @netdev: the corresponding netdev
+ * @dev: the corresponding netdev
  * @ets: structure to hold the ETS information
  *
  * Returns local IEEE ETS configuration
@@ -62,8 +62,8 @@ static int i40e_dcbnl_ieee_getets(struct net_device *dev,
 
 /**
  * i40e_dcbnl_ieee_getpfc - retrieve local IEEE PFC configuration
- * @netdev: the corresponding netdev
- * @ets: structure to hold the PFC information
+ * @dev: the corresponding netdev
+ * @pfc: structure to hold the PFC information
  *
  * Returns local IEEE PFC configuration
  **/
@@ -95,7 +95,7 @@ static int i40e_dcbnl_ieee_getpfc(struct net_device *dev,
 
 /**
  * i40e_dcbnl_getdcbx - retrieve current DCBx capability
- * @netdev: the corresponding netdev
+ * @dev: the corresponding netdev
  *
  * Returns DCBx capability features
  **/
@@ -108,7 +108,8 @@ static u8 i40e_dcbnl_getdcbx(struct net_device *dev)
 
 /**
  * i40e_dcbnl_get_perm_hw_addr - MAC address used by DCBx
- * @netdev: the corresponding netdev
+ * @dev: the corresponding netdev
+ * @perm_addr: buffer to store the MAC address
  *
  * Returns the SAN MAC address used for LLDP exchange
  **/
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 94774a2a511f..56b911a5dd8b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -12,8 +12,8 @@ static struct dentry *i40e_dbg_root;
 
 /**
  * i40e_dbg_find_vsi - searches for the vsi with the given seid
- * @pf - the PF structure to search for the vsi
- * @seid - seid of the vsi it is searching for
+ * @pf: the PF structure to search for the vsi
+ * @seid: seid of the vsi it is searching for
  **/
 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
 {
@@ -31,8 +31,8 @@ static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
 
 /**
  * i40e_dbg_find_veb - searches for the veb with the given seid
- * @pf - the PF structure to search for the veb
- * @seid - seid of the veb it is searching for
+ * @pf: the PF structure to search for the veb
+ * @seid: seid of the veb it is searching for
  **/
 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
 {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 94dbe2c419ca..c1bbfb913e49 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1055,6 +1055,9 @@ static int i40e_nway_reset(struct net_device *netdev)
 
 /**
  * i40e_get_pauseparam -  Get Flow Control status
+ * @netdev: netdevice structure
+ * @pause: buffer to return pause parameters
+ *
  * Return tx/rx-pause status
  **/
 static void i40e_get_pauseparam(struct net_device *netdev,
@@ -2526,7 +2529,7 @@ static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
 /**
  * i40e_check_mask - Check whether a mask field is set
  * @mask: the full mask value
- * @field; mask of the field to check
+ * @field: mask of the field to check
  *
  * If the given mask is fully set, return positive value. If the mask for the
  * field is fully unset, return zero. Otherwise return a negative error code.
@@ -2597,6 +2600,7 @@ static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
 /**
  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
  * @fsp: pointer to rx_flow specification
+ * @data: pointer to return userdef data
  *
  * Reads the userdef data structure and properly fills in the user defined
  * fields of the rx_flow_spec.
@@ -2775,6 +2779,7 @@ no_input_set:
  * i40e_get_rxnfc - command to get RX flow classification rules
  * @netdev: network interface device structure
  * @cmd: ethtool rxnfc command
+ * @rule_locs: pointer to store rule data
  *
  * Returns Success if the command is supported.
  **/
@@ -2816,7 +2821,7 @@ static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 /**
  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
  * @nfc: pointer to user request
- * @i_setc bits currently set
+ * @i_setc: bits currently set
  *
  * Returns value of bits to be set per user request
  **/
@@ -2861,7 +2866,7 @@ static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
 /**
  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
  * @pf: pointer to the physical function struct
- * @cmd: ethtool rxnfc command
+ * @nfc: ethtool rxnfc command
  *
  * Returns Success if the flow input set is supported.
  **/
@@ -3260,7 +3265,7 @@ static int i40e_add_flex_offset(struct list_head *flex_pit_list,
  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
  * @pf: Pointer to the PF structure
  * @flex_pit_list: list of flexible src offsets in use
- * #flex_pit_start: index to first entry for this section of the table
+ * @flex_pit_start: index to first entry for this section of the table
  *
  * In order to handle flexible data, the hardware uses a table of values
  * called the FLX_PIT table. This table is used to indicate which sections of
@@ -3374,7 +3379,7 @@ static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
 
 /**
  * i40e_flow_str - Converts a flow_type into a human readable string
- * @flow_type: the flow type from a flow specification
+ * @fsp: the flow specification
  *
  * Currently only flow types we support are included here, and the string
  * value attempts to match what ethtool would use to configure this flow type.
@@ -4079,7 +4084,7 @@ static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
 
 /**
  * i40e_get_channels - Get the current channels enabled and max supported etc.
- * @netdev: network interface device structure
+ * @dev: network interface device structure
  * @ch: ethtool channels structure
  *
  * We don't support separate tx and rx queues as channels. The other count
@@ -4088,7 +4093,7 @@ static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
  * q_vectors since we support a lot more queue pairs than q_vectors.
  **/
 static void i40e_get_channels(struct net_device *dev,
-			       struct ethtool_channels *ch)
+			      struct ethtool_channels *ch)
 {
 	struct i40e_netdev_priv *np = netdev_priv(dev);
 	struct i40e_vsi *vsi = np->vsi;
@@ -4107,14 +4112,14 @@ static void i40e_get_channels(struct net_device *dev,
 
 /**
  * i40e_set_channels - Set the new channels count.
- * @netdev: network interface device structure
+ * @dev: network interface device structure
  * @ch: ethtool channels structure
  *
  * The new channels count may not be the same as requested by the user
  * since it gets rounded down to a power of 2 value.
  **/
 static int i40e_set_channels(struct net_device *dev,
-			      struct ethtool_channels *ch)
+			     struct ethtool_channels *ch)
 {
 	const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
 	struct i40e_netdev_priv *np = netdev_priv(dev);
@@ -4249,6 +4254,7 @@ out:
  * @netdev: network interface device structure
  * @indir: indirection table
  * @key: hash key
+ * @hfunc: hash function to use
  *
  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
  * returns 0 after programming the table.
diff --git a/drivers/net/ethernet/intel/i40e/i40e_hmc.c b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
index e40f3b59e42b..19ce93d7fd0a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_hmc.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
@@ -174,7 +174,6 @@ exit:
  * @hw: pointer to our HW structure
  * @hmc_info: pointer to the HMC configuration information structure
  * @idx: the page index
- * @is_pf: distinguishes a VF from a PF
  *
  * This function:
  *	1. Marks the entry in pd tabe (for paged address mode) or in sd table
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 41bad112a907..ad01bfc5ec80 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -254,8 +254,8 @@ static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
 
 /**
  * i40e_find_vsi_from_id - searches for the vsi with the given id
- * @pf - the pf structure to search for the vsi
- * @id - id of the vsi it is searching for
+ * @pf: the pf structure to search for the vsi
+ * @id: id of the vsi it is searching for
  **/
 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id)
 {
@@ -411,6 +411,7 @@ static void i40e_get_netdev_stats_struct_tx(struct i40e_ring *ring,
 /**
  * i40e_get_netdev_stats_struct - Get statistics for netdev interface
  * @netdev: network interface device structure
+ * @stats: data structure to store statistics
  *
  * Returns the address of the device statistics structure.
  * The statistics are actually updated from the service task.
@@ -2003,7 +2004,7 @@ struct i40e_new_mac_filter *i40e_next_filter(struct i40e_new_mac_filter *next)
  * from firmware
  * @count: Number of filters added
  * @add_list: return data from fw
- * @head: pointer to first filter in current batch
+ * @add_head: pointer to first filter in current batch
  *
  * MAC filter entries from list were slated to be added to device. Returns
  * number of successful filters. Note that 0 does NOT mean success!
@@ -2110,6 +2111,7 @@ void i40e_aqc_add_filters(struct i40e_vsi *vsi, const char *vsi_name,
 /**
  * i40e_aqc_broadcast_filter - Set promiscuous broadcast flags
  * @vsi: pointer to the VSI
+ * @vsi_name: the VSI name
  * @f: filter data
  *
  * This function sets or clears the promiscuous broadcast flags for VLAN
@@ -2816,6 +2818,7 @@ void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, u16 vid)
 /**
  * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
  * @netdev: network interface to be adjusted
+ * @proto: unused protocol value
  * @vid: vlan id to be added
  *
  * net_device_ops implementation for adding vlan ids
@@ -2840,6 +2843,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev,
 /**
  * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
  * @netdev: network interface to be adjusted
+ * @proto: unused protocol value
  * @vid: vlan id to be removed
  *
  * net_device_ops implementation for removing vlan ids
@@ -3461,7 +3465,7 @@ static void i40e_vsi_configure_msix(struct i40e_vsi *vsi)
 
 /**
  * i40e_enable_misc_int_causes - enable the non-queue interrupts
- * @hw: ptr to the hardware info
+ * @pf: pointer to private device data structure
  **/
 static void i40e_enable_misc_int_causes(struct i40e_pf *pf)
 {
@@ -5072,7 +5076,7 @@ static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi)
  * i40e_vsi_configure_bw_alloc - Configure VSI BW allocation per TC
  * @vsi: the VSI being configured
  * @enabled_tc: TC bitmap
- * @bw_credits: BW shared credits per TC
+ * @bw_share: BW shared credits per TC
  *
  * Returns 0 on success, negative value on failure
  **/
@@ -6329,6 +6333,7 @@ out:
 /**
  * i40e_print_link_message - print link up or down
  * @vsi: the VSI for which link needs a message
+ * @isup: true of link is up, false otherwise
  */
 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup)
 {
@@ -9980,7 +9985,7 @@ unlock_pf:
 
 /**
  * i40e_vsi_free_arrays - Free queue and vector pointer arrays for the VSI
- * @type: VSI pointer
+ * @vsi: VSI pointer
  * @free_qvectors: a bool to specify if q_vectors need to be freed.
  *
  * On error: returns error code (negative)
@@ -10776,7 +10781,7 @@ int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
  * @vsi: Pointer to VSI structure
  * @seed: Buffer to store the keys
  * @lut: Buffer to store the lookup table entries
- * lut_size: Size of buffer to store the lookup table entries
+ * @lut_size: Size of buffer to store the lookup table entries
  *
  * Returns 0 on success, negative on failure
  */
@@ -11476,6 +11481,7 @@ static int i40e_get_phys_port_id(struct net_device *netdev,
  * @tb: pointer to array of nladdr (unused)
  * @dev: the net device pointer
  * @addr: the MAC address entry being added
+ * @vid: VLAN ID
  * @flags: instructions from stack about fdb operation
  */
 static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
@@ -11521,6 +11527,7 @@ static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
  * i40e_ndo_bridge_setlink - Set the hardware bridge mode
  * @dev: the netdev being configured
  * @nlh: RTNL message
+ * @flags: bridge flags
  *
  * Inserts a new hardware bridge if not already created and
  * enables the bridging mode requested (VEB or VEPA). If the
@@ -14094,6 +14101,7 @@ static void i40e_remove(struct pci_dev *pdev)
 /**
  * i40e_pci_error_detected - warning that something funky happened in PCI land
  * @pdev: PCI device information struct
+ * @error: the type of PCI error
  *
  * Called to warn that something happened and the error handling steps
  * are in progress.  Allows the driver to quiesce things, be ready for
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 51554df9cb9a..0299e5bbb902 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -1149,6 +1149,7 @@ void i40e_nvmupd_clear_wait_state(struct i40e_hw *hw)
  * i40e_nvmupd_check_wait_event - handle NVM update operation events
  * @hw: pointer to the hardware structure
  * @opcode: the event that just happened
+ * @desc: AdminQ descriptor
  **/
 void i40e_nvmupd_check_wait_event(struct i40e_hw *hw, u16 opcode,
 				  struct i40e_aq_desc *desc)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 47d10ad39c18..43d7c44d6d9f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -483,7 +483,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 /**
  * i40e_ptp_get_ts_config - ioctl interface to read the HW timestamping
  * @pf: Board private structure
- * @ifreq: ioctl data
+ * @ifr: ioctl data
  *
  * Obtain the current hardware timestamping settigs as requested. To do this,
  * keep a shadow copy of the timestamp settings rather than attempting to
@@ -627,7 +627,7 @@ static int i40e_ptp_set_timestamp_mode(struct i40e_pf *pf,
 /**
  * i40e_ptp_set_ts_config - ioctl interface to control the HW timestamping
  * @pf: Board private structure
- * @ifreq: ioctl data
+ * @ifr: ioctl data
  *
  * Respond to the user filter requests and make the appropriate hardware
  * changes here. The XL710 cannot support splitting of the Tx/Rx timestamping
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 6959897c789e..5efa68de935b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -471,7 +471,7 @@ static int i40e_add_del_fdir_ipv4(struct i40e_vsi *vsi,
 /**
  * i40e_add_del_fdir - Build raw packets to add/del fdir filter
  * @vsi: pointer to the targeted VSI
- * @cmd: command to get or set RX flow classification rules
+ * @input: filter to add or delete
  * @add: true adds a filter, false removes it
  *
  **/
@@ -689,7 +689,7 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
 
 /**
  * i40e_get_tx_pending - how many tx descriptors not processed
- * @tx_ring: the ring of descriptors
+ * @ring: the ring of descriptors
  * @in_sw: use SW variables
  *
  * Since there is no access to the ring head register
@@ -1771,6 +1771,8 @@ static inline int i40e_ptype_to_htype(u8 ptype)
  * i40e_rx_hash - set the hash value in the skb
  * @ring: descriptor ring
  * @rx_desc: specific descriptor
+ * @skb: skb currently being received and modified
+ * @rx_ptype: Rx packet type
  **/
 static inline void i40e_rx_hash(struct i40e_ring *ring,
 				union i40e_rx_desc *rx_desc,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 3e7ab9fbeb0c..2ceea63cc6cf 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -8,8 +8,8 @@
 /**
  * i40e_vc_vf_broadcast
  * @pf: pointer to the PF structure
- * @opcode: operation code
- * @retval: return value
+ * @v_opcode: operation code
+ * @v_retval: return value
  * @msg: pointer to the msg buffer
  * @msglen: msg length
  *
@@ -1639,6 +1639,7 @@ static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
 /**
  * i40e_vc_get_version_msg
  * @vf: pointer to the VF info
+ * @msg: pointer to the msg buffer
  *
  * called from the VF to request the API version used by the PF
  **/
@@ -1682,7 +1683,6 @@ static void i40e_del_qch(struct i40e_vf *vf)
  * i40e_vc_get_vf_resources_msg
  * @vf: pointer to the VF info
  * @msg: pointer to the msg buffer
- * @msglen: msg length
  *
  * called from the VF to request its resources
  **/
@@ -1806,8 +1806,6 @@ err:
 /**
  * i40e_vc_reset_vf_msg
  * @vf: pointer to the VF info
- * @msg: pointer to the msg buffer
- * @msglen: msg length
  *
  * called from the VF to reset itself,
  * unlike other virtchnl messages, PF driver
@@ -3532,15 +3530,16 @@ err:
  * i40e_vc_process_vf_msg
  * @pf: pointer to the PF structure
  * @vf_id: source VF id
+ * @v_opcode: operation code
+ * @v_retval: unused return value code
  * @msg: pointer to the msg buffer
  * @msglen: msg length
- * @msghndl: msg handle
  *
  * called from the common aeq/arq handler to
  * process request from VF
  **/
 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
-			   u32 v_retval, u8 *msg, u16 msglen)
+			   u32 __always_unused v_retval, u8 *msg, u16 msglen)
 {
 	struct i40e_hw *hw = &pf->hw;
 	int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
@@ -3991,7 +3990,8 @@ error_pvid:
  * i40e_ndo_set_vf_bw
  * @netdev: network interface device structure
  * @vf_id: VF identifier
- * @tx_rate: Tx rate
+ * @min_tx_rate: Minimum Tx rate
+ * @max_tx_rate: Maximum Tx rate
  *
  * configure VF Tx rate
  **/
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_common.c b/drivers/net/ethernet/intel/i40evf/i40e_common.c
index 0841b2d1ca6d..9cef54971312 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_common.c
@@ -1231,6 +1231,7 @@ i40e_status_code i40evf_aq_write_ddp(struct i40e_hw *hw, void *buff,
  * @hw: pointer to the hw struct
  * @buff: command buffer (size in bytes = buff_size)
  * @buff_size: buffer size in bytes
+ * @flags: AdminQ command flags
  * @cmd_details: pointer to command details structure or NULL
  **/
 enum
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 87101f565be1..a9730711e257 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -105,7 +105,7 @@ void i40evf_free_tx_resources(struct i40e_ring *tx_ring)
 
 /**
  * i40evf_get_tx_pending - how many Tx descriptors not processed
- * @tx_ring: the ring of descriptors
+ * @ring: the ring of descriptors
  * @in_sw: is tx_pending being checked in SW or HW
  *
  * Since there is no access to the ring head register
@@ -1046,6 +1046,8 @@ static inline int i40e_ptype_to_htype(u8 ptype)
  * i40e_rx_hash - set the hash value in the skb
  * @ring: descriptor ring
  * @rx_desc: specific descriptor
+ * @skb: skb currently being received and modified
+ * @rx_ptype: Rx packet type
  **/
 static inline void i40e_rx_hash(struct i40e_ring *ring,
 				union i40e_rx_desc *rx_desc,
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_client.c b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
index a30d093a52d6..3cc9d60d0d72 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_client.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
@@ -178,7 +178,6 @@ void i40evf_notify_client_close(struct i40e_vsi *vsi, bool reset)
 /**
  * i40evf_client_add_instance - add a client instance to the instance list
  * @adapter: pointer to the board struct
- * @client: pointer to a client struct in the client list.
  *
  * Returns cinst ptr on success, NULL on failure
  **/
@@ -236,7 +235,6 @@ out:
 /**
  * i40evf_client_del_instance - removes a client instance from the list
  * @adapter: pointer to the board struct
- * @client: pointer to the client struct
  *
  **/
 static
@@ -440,7 +438,7 @@ static u32 i40evf_client_virtchnl_send(struct i40e_info *ldev,
  * i40evf_client_setup_qvlist - send a message to the PF to setup iwarp qv map
  * @ldev: pointer to L2 context.
  * @client: Client pointer.
- * @qv_info: queue and vector list
+ * @qvlist_info: queue and vector list
  *
  * Return 0 on success or < 0 on error
  **/
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
index 404595efea78..69efe0aec76a 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
@@ -202,7 +202,7 @@ static void i40evf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
 
 /**
  * i40evf_get_priv_flags - report device private flags
- * @dev: network interface device structure
+ * @netdev: network interface device structure
  *
  * The get string set count and the string set should be matched for each
  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
@@ -229,7 +229,7 @@ static u32 i40evf_get_priv_flags(struct net_device *netdev)
 
 /**
  * i40evf_set_priv_flags - set private flags
- * @dev: network interface device structure
+ * @netdev: network interface device structure
  * @flags: bit flags to be set
  **/
 static int i40evf_set_priv_flags(struct net_device *netdev, u32 flags)
@@ -603,6 +603,7 @@ static int i40evf_set_per_queue_coalesce(struct net_device *netdev,
  * i40evf_get_rxnfc - command to get RX flow classification rules
  * @netdev: network interface device structure
  * @cmd: ethtool rxnfc command
+ * @rule_locs: pointer to store rule locations
  *
  * Returns Success if the command is supported.
  **/
@@ -722,6 +723,7 @@ static u32 i40evf_get_rxfh_indir_size(struct net_device *netdev)
  * @netdev: network interface device structure
  * @indir: indirection table
  * @key: hash key
+ * @hfunc: hash function in use
  *
  * Reads the indirection table directly from the hardware. Always returns 0.
  **/
@@ -750,6 +752,7 @@ static int i40evf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
  * @netdev: network interface device structure
  * @indir: indirection table
  * @key: hash key
+ * @hfunc: hash function to use
  *
  * Returns -EINVAL if the table specifies an inavlid queue id, otherwise
  * returns 0 after programming the table.
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 8f775a82e2fa..28a8cc4a14cb 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -449,6 +449,7 @@ static void i40evf_irq_affinity_release(struct kref *ref) {}
 /**
  * i40evf_request_traffic_irqs - Initialize MSI-X interrupts
  * @adapter: board private structure
+ * @basename: device basename
  *
  * Allocates MSI-X vectors for tx and rx handling, and requests
  * interrupts from the kernel.
@@ -721,6 +722,7 @@ static void i40evf_del_vlan(struct i40evf_adapter *adapter, u16 vlan)
 /**
  * i40evf_vlan_rx_add_vid - Add a VLAN filter to a device
  * @netdev: network device struct
+ * @proto: unused protocol data
  * @vid: VLAN tag
  **/
 static int i40evf_vlan_rx_add_vid(struct net_device *netdev,
@@ -738,6 +740,7 @@ static int i40evf_vlan_rx_add_vid(struct net_device *netdev,
 /**
  * i40evf_vlan_rx_kill_vid - Remove a VLAN filter from a device
  * @netdev: network device struct
+ * @proto: unused protocol data
  * @vid: VLAN tag
  **/
 static int i40evf_vlan_rx_kill_vid(struct net_device *netdev,
@@ -3136,7 +3139,7 @@ static int i40evf_set_features(struct net_device *netdev,
 /**
  * i40evf_features_check - Validate encapsulated packet conforms to limits
  * @skb: skb buff
- * @netdev: This physical port's netdev
+ * @dev: This physical port's netdev
  * @features: Offload features that the stack believes apply
  **/
 static netdev_features_t i40evf_features_check(struct sk_buff *skb,
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
index 8bcefb7f7ac0..565677de5ba3 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
@@ -155,8 +155,7 @@ int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
 
 /**
  * i40evf_get_vf_config
- * @hw: pointer to the hardware structure
- * @len: length of buffer
+ * @adapter: private adapter structure
  *
  * Get VF configuration from PF and populate hw structure. Must be called after
  * admin queue is initialized. Busy waits until response is received from PF,
@@ -399,8 +398,6 @@ int i40evf_request_queues(struct i40evf_adapter *adapter, int num)
 /**
  * i40evf_add_ether_addrs
  * @adapter: adapter structure
- * @addrs: the MAC address filters to add (contiguous)
- * @count: number of filters
  *
  * Request that the PF add one or more addresses to our filters.
  **/
@@ -473,8 +470,6 @@ void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
 /**
  * i40evf_del_ether_addrs
  * @adapter: adapter structure
- * @addrs: the MAC address filters to remove (contiguous)
- * @count: number of filtes
  *
  * Request that the PF remove one or more addresses from our filters.
  **/
@@ -547,8 +542,6 @@ void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
 /**
  * i40evf_add_vlans
  * @adapter: adapter structure
- * @vlans: the VLANs to add
- * @count: number of VLANs
  *
  * Request that the PF add one or more VLAN filters to our VSI.
  **/
@@ -619,8 +612,6 @@ void i40evf_add_vlans(struct i40evf_adapter *adapter)
 /**
  * i40evf_del_vlans
  * @adapter: adapter structure
- * @vlans: the VLANs to remove
- * @count: number of VLANs
  *
  * Request that the PF remove one or more VLAN filters from our VSI.
  **/

From 6334f2432fdf5d5252850ff2eebbaa00232f6ab9 Mon Sep 17 00:00:00 2001
From: Mariusz Stachura <mariusz.stachura@intel.com>
Date: Fri, 20 Apr 2018 01:41:34 -0700
Subject: [PATCH 3/9] i40e: fix reading LLDP configuration

Previous method for reading LLDP config was based on hard-coded
offsets. It happened to work, because of structured architecture of
the NVM memory. In the new approach, known as FLAT, we need to
calculate the absolute address, instead of using relative values.
Needed defines for memory location were added.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_dcb.c    | 91 +++++++++++++++++--
 drivers/net/ethernet/intel/i40e/i40e_type.h   |  8 +-
 drivers/net/ethernet/intel/i40evf/i40e_type.h | 10 +-
 3 files changed, 99 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb.c b/drivers/net/ethernet/intel/i40e/i40e_dcb.c
index 69e7d4967b1c..56bff8faf371 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb.c
@@ -920,6 +920,70 @@ i40e_status i40e_init_dcb(struct i40e_hw *hw)
 	return ret;
 }
 
+/**
+ * _i40e_read_lldp_cfg - generic read of LLDP Configuration data from NVM
+ * @hw: pointer to the HW structure
+ * @lldp_cfg: pointer to hold lldp configuration variables
+ * @module: address of the module pointer
+ * @word_offset: offset of LLDP configuration
+ *
+ * Reads the LLDP configuration data from NVM using passed addresses
+ **/
+static i40e_status _i40e_read_lldp_cfg(struct i40e_hw *hw,
+				       struct i40e_lldp_variables *lldp_cfg,
+				       u8 module, u32 word_offset)
+{
+	u32 address, offset = (2 * word_offset);
+	i40e_status ret;
+	__le16 raw_mem;
+	u16 mem;
+
+	ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+	if (ret)
+		return ret;
+
+	ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
+			       true, NULL);
+	i40e_release_nvm(hw);
+	if (ret)
+		return ret;
+
+	mem = le16_to_cpu(raw_mem);
+	/* Check if this pointer needs to be read in word size or 4K sector
+	 * units.
+	 */
+	if (mem & I40E_PTR_TYPE)
+		address = (0x7FFF & mem) * 4096;
+	else
+		address = (0x7FFF & mem) * 2;
+
+	ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+	if (ret)
+		goto err_lldp_cfg;
+
+	ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
+			       true, NULL);
+	i40e_release_nvm(hw);
+	if (ret)
+		return ret;
+
+	mem = le16_to_cpu(raw_mem);
+	offset = mem + word_offset;
+	offset *= 2;
+
+	ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+	if (ret)
+		goto err_lldp_cfg;
+
+	ret = i40e_aq_read_nvm(hw, 0, address + offset,
+			       sizeof(struct i40e_lldp_variables), lldp_cfg,
+			       true, NULL);
+	i40e_release_nvm(hw);
+
+err_lldp_cfg:
+	return ret;
+}
+
 /**
  * i40e_read_lldp_cfg - read LLDP Configuration data from NVM
  * @hw: pointer to the HW structure
@@ -931,21 +995,34 @@ i40e_status i40e_read_lldp_cfg(struct i40e_hw *hw,
 			       struct i40e_lldp_variables *lldp_cfg)
 {
 	i40e_status ret = 0;
-	u32 offset = (2 * I40E_NVM_LLDP_CFG_PTR);
+	u32 mem;
 
 	if (!lldp_cfg)
 		return I40E_ERR_PARAM;
 
 	ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
 	if (ret)
-		goto err_lldp_cfg;
+		return ret;
 
-	ret = i40e_aq_read_nvm(hw, I40E_SR_EMP_MODULE_PTR, offset,
-			       sizeof(struct i40e_lldp_variables),
-			       (u8 *)lldp_cfg,
-			       true, NULL);
+	ret = i40e_aq_read_nvm(hw, I40E_SR_NVM_CONTROL_WORD, 0, sizeof(mem),
+			       &mem, true, NULL);
 	i40e_release_nvm(hw);
+	if (ret)
+		return ret;
+
+	/* Read a bit that holds information whether we are running flat or
+	 * structured NVM image. Flat image has LLDP configuration in shadow
+	 * ram, so there is a need to pass different addresses for both cases.
+	 */
+	if (mem & I40E_SR_NVM_MAP_STRUCTURE_TYPE) {
+		/* Flat NVM case */
+		ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_SR_EMP_MODULE_PTR,
+					  I40E_SR_LLDP_CFG_PTR);
+	} else {
+		/* Good old structured NVM image */
+		ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_EMP_MODULE_PTR,
+					  I40E_NVM_LLDP_CFG_PTR);
+	}
 
-err_lldp_cfg:
 	return ret;
 }
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 40968a4216a7..7df969c59855 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -1294,7 +1294,8 @@ struct i40e_hw_port_stats {
 
 /* Checksum and Shadow RAM pointers */
 #define I40E_SR_NVM_CONTROL_WORD		0x00
-#define I40E_SR_EMP_MODULE_PTR			0x0F
+#define I40E_EMP_MODULE_PTR			0x0F
+#define I40E_SR_EMP_MODULE_PTR			0x48
 #define I40E_SR_PBA_FLAGS			0x15
 #define I40E_SR_PBA_BLOCK_PTR			0x16
 #define I40E_SR_BOOT_CONFIG_PTR			0x17
@@ -1313,6 +1314,8 @@ struct i40e_hw_port_stats {
 #define I40E_SR_PCIE_ALT_MODULE_MAX_SIZE	1024
 #define I40E_SR_CONTROL_WORD_1_SHIFT		0x06
 #define I40E_SR_CONTROL_WORD_1_MASK	(0x03 << I40E_SR_CONTROL_WORD_1_SHIFT)
+#define I40E_SR_CONTROL_WORD_1_NVM_BANK_VALID	BIT(5)
+#define I40E_SR_NVM_MAP_STRUCTURE_TYPE		BIT(12)
 #define I40E_PTR_TYPE				BIT(15)
 #define I40E_SR_OCP_CFG_WORD0			0x2B
 #define I40E_SR_OCP_ENABLED			BIT(15)
@@ -1430,7 +1433,8 @@ enum i40e_reset_type {
 };
 
 /* IEEE 802.1AB LLDP Agent Variables from NVM */
-#define I40E_NVM_LLDP_CFG_PTR		0xD
+#define I40E_NVM_LLDP_CFG_PTR	0x06
+#define I40E_SR_LLDP_CFG_PTR	0x31
 struct i40e_lldp_variables {
 	u16 length;
 	u16 adminstatus;
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index c77cb9f672d8..094387db3c11 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -1233,7 +1233,8 @@ struct i40e_hw_port_stats {
 
 /* Checksum and Shadow RAM pointers */
 #define I40E_SR_NVM_CONTROL_WORD		0x00
-#define I40E_SR_EMP_MODULE_PTR			0x0F
+#define I40E_EMP_MODULE_PTR			0x0F
+#define I40E_SR_EMP_MODULE_PTR			0x48
 #define I40E_NVM_OEM_VER_OFF			0x83
 #define I40E_SR_NVM_DEV_STARTER_VERSION		0x18
 #define I40E_SR_NVM_WAKE_ON_LAN			0x19
@@ -1249,6 +1250,9 @@ struct i40e_hw_port_stats {
 #define I40E_SR_PCIE_ALT_MODULE_MAX_SIZE	1024
 #define I40E_SR_CONTROL_WORD_1_SHIFT		0x06
 #define I40E_SR_CONTROL_WORD_1_MASK	(0x03 << I40E_SR_CONTROL_WORD_1_SHIFT)
+#define I40E_SR_CONTROL_WORD_1_NVM_BANK_VALID	BIT(5)
+#define I40E_SR_NVM_MAP_STRUCTURE_TYPE		BIT(12)
+#define I40E_PTR_TYPE				BIT(15)
 
 /* Shadow RAM related */
 #define I40E_SR_SECTOR_SIZE_IN_WORDS	0x800
@@ -1362,6 +1366,10 @@ enum i40e_reset_type {
 	I40E_RESET_EMPR		= 3,
 };
 
+/* IEEE 802.1AB LLDP Agent Variables from NVM */
+#define I40E_NVM_LLDP_CFG_PTR	0x06
+#define I40E_SR_LLDP_CFG_PTR	0x31
+
 /* RSS Hash Table Size */
 #define I40E_PFQF_CTL_0_HASHLUTSIZE_512	0x00010000
 

From 6ee4d32255865fc4b383355a8354603d60ab9f8a Mon Sep 17 00:00:00 2001
From: Jakub Pawlak <jakub.pawlak@intel.com>
Date: Fri, 20 Apr 2018 01:41:35 -0700
Subject: [PATCH 4/9] i40e: Add advertising 10G LR mode

The advertising 10G LR mode should be possible to set
but in the function i40e_set_link_ksettings() check for this
is missed. This patch adds check for 10000baseLR_Full
flag for 10G modes.

Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index c1bbfb913e49..fc6a5eef141c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -953,7 +953,9 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
 						  10000baseCR_Full) ||
 	    ethtool_link_ksettings_test_link_mode(ks, advertising,
-						  10000baseSR_Full))
+						  10000baseSR_Full) ||
+	    ethtool_link_ksettings_test_link_mode(ks, advertising,
+						  10000baseLR_Full))
 		config.link_speed |= I40E_LINK_SPEED_10GB;
 	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 						  20000baseKR2_Full))

From e4062894d5939bbba9fbed5a70a9eaf6fa397b10 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Jab=C5=82o=C5=84ski?=
 <pawel.jablonski@intel.com>
Date: Fri, 20 Apr 2018 01:41:36 -0700
Subject: [PATCH 5/9] i40evf: Fix turning TSO, GSO and GRO on after
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixes the problem where each MTU change turns TSO,
GSO and GRO on from off state.

Now when TSO, GSO or GRO is turned off, MTU change does not
turn them on.

Signed-off-by: Paweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 .../net/ethernet/intel/i40evf/i40evf_main.c    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 28a8cc4a14cb..3f04a182903d 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -3357,6 +3357,24 @@ int i40evf_process_config(struct i40evf_adapter *adapter)
 	if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)
 		netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 
+	/* Do not turn on offloads when they are requested to be turned off.
+	 * TSO needs minimum 576 bytes to work correctly.
+	 */
+	if (netdev->wanted_features) {
+		if (!(netdev->wanted_features & NETIF_F_TSO) ||
+		    netdev->mtu < 576)
+			netdev->features &= ~NETIF_F_TSO;
+		if (!(netdev->wanted_features & NETIF_F_TSO6) ||
+		    netdev->mtu < 576)
+			netdev->features &= ~NETIF_F_TSO6;
+		if (!(netdev->wanted_features & NETIF_F_TSO_ECN))
+			netdev->features &= ~NETIF_F_TSO_ECN;
+		if (!(netdev->wanted_features & NETIF_F_GRO))
+			netdev->features &= ~NETIF_F_GRO;
+		if (!(netdev->wanted_features & NETIF_F_GSO))
+			netdev->features &= ~NETIF_F_GSO;
+	}
+
 	adapter->vsi.id = adapter->vsi_res->vsi_id;
 
 	adapter->vsi.back = adapter;

From 5305d0fe2f22ec42b19f5ed205faad9b26955e5c Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Fri, 20 Apr 2018 01:41:37 -0700
Subject: [PATCH 6/9] i40e: Fix multiple issues with UDP tunnel offload filter
 configuration

This fixes at least 2 issues I have found with the UDP tunnel filter
configuration.

The first issue is the fact that the tunnels didn't have any sort of mutual
exclusion in place to prevent an update from racing with a user request to
add/remove a port. As such you could request to add and remove a port
before the port update code had a chance to respond which would result in a
very confusing result. To address it I have added 2 changes. First I added
the RTNL mutex wrapper around our updating of the pending, port, and
filter_index bits. Second I added logic so that we cannot use a port that
has a pending deletion since we need to free the space in hardware before
we can allow software to reuse it.

The second issue addressed is the fact that we were not recording the
actual filter index provided to us by the admin queue. As a result we were
deleting filters that were not associated with the actual filter we wanted
to delete. To fix that I added a filter_index member to the UDP port
tracking structure.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h      |  2 +
 drivers/net/ethernet/intel/i40e/i40e_main.c | 66 +++++++++++++++++----
 2 files changed, 56 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index f573108faec3..70d369e9139c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -310,10 +310,12 @@ struct i40e_tc_configuration {
 	struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
 };
 
+#define I40E_UDP_PORT_INDEX_UNUSED	255
 struct i40e_udp_port_config {
 	/* AdminQ command interface expects port number in Host byte order */
 	u16 port;
 	u8 type;
+	u8 filter_index;
 };
 
 /* macros related to FLX_PIT */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index ad01bfc5ec80..0babde10fa15 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9672,9 +9672,9 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
 	i40e_flush(hw);
 }
 
-static const char *i40e_tunnel_name(struct i40e_udp_port_config *port)
+static const char *i40e_tunnel_name(u8 type)
 {
-	switch (port->type) {
+	switch (type) {
 	case UDP_TUNNEL_TYPE_VXLAN:
 		return "vxlan";
 	case UDP_TUNNEL_TYPE_GENEVE:
@@ -9708,37 +9708,68 @@ static void i40e_sync_udp_filters(struct i40e_pf *pf)
 static void i40e_sync_udp_filters_subtask(struct i40e_pf *pf)
 {
 	struct i40e_hw *hw = &pf->hw;
-	i40e_status ret;
+	u8 filter_index, type;
 	u16 port;
 	int i;
 
 	if (!test_and_clear_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state))
 		return;
 
+	/* acquire RTNL to maintain state of flags and port requests */
+	rtnl_lock();
+
 	for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
 		if (pf->pending_udp_bitmap & BIT_ULL(i)) {
+			struct i40e_udp_port_config *udp_port;
+			i40e_status ret = 0;
+
+			udp_port = &pf->udp_ports[i];
 			pf->pending_udp_bitmap &= ~BIT_ULL(i);
-			port = pf->udp_ports[i].port;
+
+			port = READ_ONCE(udp_port->port);
+			type = READ_ONCE(udp_port->type);
+			filter_index = READ_ONCE(udp_port->filter_index);
+
+			/* release RTNL while we wait on AQ command */
+			rtnl_unlock();
+
 			if (port)
 				ret = i40e_aq_add_udp_tunnel(hw, port,
-							pf->udp_ports[i].type,
-							NULL, NULL);
-			else
-				ret = i40e_aq_del_udp_tunnel(hw, i, NULL);
+							     type,
+							     &filter_index,
+							     NULL);
+			else if (filter_index != I40E_UDP_PORT_INDEX_UNUSED)
+				ret = i40e_aq_del_udp_tunnel(hw, filter_index,
+							     NULL);
+
+			/* reacquire RTNL so we can update filter_index */
+			rtnl_lock();
 
 			if (ret) {
 				dev_info(&pf->pdev->dev,
 					 "%s %s port %d, index %d failed, err %s aq_err %s\n",
-					 i40e_tunnel_name(&pf->udp_ports[i]),
+					 i40e_tunnel_name(type),
 					 port ? "add" : "delete",
-					 port, i,
+					 port,
+					 filter_index,
 					 i40e_stat_str(&pf->hw, ret),
 					 i40e_aq_str(&pf->hw,
 						     pf->hw.aq.asq_last_status));
-				pf->udp_ports[i].port = 0;
+				if (port) {
+					/* failed to add, just reset port,
+					 * drop pending bit for any deletion
+					 */
+					udp_port->port = 0;
+					pf->pending_udp_bitmap &= ~BIT_ULL(i);
+				}
+			} else if (port) {
+				/* record filter index on success */
+				udp_port->filter_index = filter_index;
 			}
 		}
 	}
+
+	rtnl_unlock();
 }
 
 /**
@@ -11355,6 +11386,11 @@ static u8 i40e_get_udp_port_idx(struct i40e_pf *pf, u16 port)
 	u8 i;
 
 	for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
+		/* Do not report ports with pending deletions as
+		 * being available.
+		 */
+		if (!port && (pf->pending_udp_bitmap & BIT_ULL(i)))
+			continue;
 		if (pf->udp_ports[i].port == port)
 			return i;
 	}
@@ -11409,6 +11445,7 @@ static void i40e_udp_tunnel_add(struct net_device *netdev,
 
 	/* New port: add it and mark its index in the bitmap */
 	pf->udp_ports[next_idx].port = port;
+	pf->udp_ports[next_idx].filter_index = I40E_UDP_PORT_INDEX_UNUSED;
 	pf->pending_udp_bitmap |= BIT_ULL(next_idx);
 	set_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state);
 }
@@ -11450,7 +11487,12 @@ static void i40e_udp_tunnel_del(struct net_device *netdev,
 	 * and make it pending
 	 */
 	pf->udp_ports[idx].port = 0;
-	pf->pending_udp_bitmap |= BIT_ULL(idx);
+
+	/* Toggle pending bit instead of setting it. This way if we are
+	 * deleting a port that has yet to be added we just clear the pending
+	 * bit and don't have to worry about it.
+	 */
+	pf->pending_udp_bitmap ^= BIT_ULL(idx);
 	set_bit(__I40E_UDP_FILTER_SYNC_PENDING, pf->state);
 
 	return;

From 830e0dd9996c4644e42412aa6c46ed8f8eab0cca Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 20 Apr 2018 01:41:38 -0700
Subject: [PATCH 7/9] i40e: avoid overflow in i40e_ptp_adjfreq()

When operating at 1GbE, the base incval for the PTP clock is so large
that multiplying it by numbers close to the max_adj can overflow the
u64.

Rather than attempting to limit the max_adj to a value small enough to
avoid overflow, instead calculate the incvalue adjustment based on the
40GbE incvalue, and then multiply that by the scaling factor for the
link speed.

This sacrifices a small amount of precision in the adjustment but we
avoid erratic behavior of the clock due to the overflow caused if ppb is
very near the maximum adjustment.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h     |  2 +-
 drivers/net/ethernet/intel/i40e/i40e_ptp.c | 41 ++++++++++++++--------
 2 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 70d369e9139c..1d59ab6ca90f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -586,7 +586,7 @@ struct i40e_pf {
 	unsigned long ptp_tx_start;
 	struct hwtstamp_config tstamp_config;
 	struct mutex tmreg_lock; /* Used to protect the SYSTIME registers. */
-	u64 ptp_base_adj;
+	u32 ptp_adj_mult;
 	u32 tx_hwtstamp_timeouts;
 	u32 tx_hwtstamp_skipped;
 	u32 rx_hwtstamp_cleared;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 43d7c44d6d9f..aa3daec2049d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -16,9 +16,9 @@
  * At 1Gb link, the period is multiplied by 20. (32ns)
  * 1588 functionality is not supported at 100Mbps.
  */
-#define I40E_PTP_40GB_INCVAL 0x0199999999ULL
-#define I40E_PTP_10GB_INCVAL 0x0333333333ULL
-#define I40E_PTP_1GB_INCVAL  0x2000000000ULL
+#define I40E_PTP_40GB_INCVAL		0x0199999999ULL
+#define I40E_PTP_10GB_INCVAL_MULT	2
+#define I40E_PTP_1GB_INCVAL_MULT	20
 
 #define I40E_PRTTSYN_CTL1_TSYNTYPE_V1  BIT(I40E_PRTTSYN_CTL1_TSYNTYPE_SHIFT)
 #define I40E_PRTTSYN_CTL1_TSYNTYPE_V2  (2 << \
@@ -106,17 +106,24 @@ static int i40e_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
 		ppb = -ppb;
 	}
 
-	smp_mb(); /* Force any pending update before accessing. */
-	adj = READ_ONCE(pf->ptp_base_adj);
-
-	freq = adj;
+	freq = I40E_PTP_40GB_INCVAL;
 	freq *= ppb;
 	diff = div_u64(freq, 1000000000ULL);
 
 	if (neg_adj)
-		adj -= diff;
+		adj = I40E_PTP_40GB_INCVAL - diff;
 	else
-		adj += diff;
+		adj = I40E_PTP_40GB_INCVAL + diff;
+
+	/* At some link speeds, the base incval is so large that directly
+	 * multiplying by ppb would result in arithmetic overflow even when
+	 * using a u64. Avoid this by instead calculating the new incval
+	 * always in terms of the 40GbE clock rate and then multiplying by the
+	 * link speed factor afterwards. This does result in slightly lower
+	 * precision at lower link speeds, but it is fairly minor.
+	 */
+	smp_mb(); /* Force any pending update before accessing. */
+	adj *= READ_ONCE(pf->ptp_adj_mult);
 
 	wr32(hw, I40E_PRTTSYN_INC_L, adj & 0xFFFFFFFF);
 	wr32(hw, I40E_PRTTSYN_INC_H, adj >> 32);
@@ -438,6 +445,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 	struct i40e_link_status *hw_link_info;
 	struct i40e_hw *hw = &pf->hw;
 	u64 incval;
+	u32 mult;
 
 	hw_link_info = &hw->phy.link_info;
 
@@ -445,10 +453,10 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 
 	switch (hw_link_info->link_speed) {
 	case I40E_LINK_SPEED_10GB:
-		incval = I40E_PTP_10GB_INCVAL;
+		mult = I40E_PTP_10GB_INCVAL_MULT;
 		break;
 	case I40E_LINK_SPEED_1GB:
-		incval = I40E_PTP_1GB_INCVAL;
+		mult = I40E_PTP_1GB_INCVAL_MULT;
 		break;
 	case I40E_LINK_SPEED_100MB:
 	{
@@ -459,15 +467,20 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 				 "1588 functionality is not supported at 100 Mbps. Stopping the PHC.\n");
 			warn_once++;
 		}
-		incval = 0;
+		mult = 0;
 		break;
 	}
 	case I40E_LINK_SPEED_40GB:
 	default:
-		incval = I40E_PTP_40GB_INCVAL;
+		mult = 1;
 		break;
 	}
 
+	/* The increment value is calculated by taking the base 40GbE incvalue
+	 * and multiplying it by a factor based on the link speed.
+	 */
+	incval = I40E_PTP_40GB_INCVAL * mult;
+
 	/* Write the new increment value into the increment register. The
 	 * hardware will not update the clock until both registers have been
 	 * written.
@@ -476,7 +489,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 	wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
 
 	/* Update the base adjustement value. */
-	WRITE_ONCE(pf->ptp_base_adj, incval);
+	WRITE_ONCE(pf->ptp_adj_mult, mult);
 	smp_mb(); /* Force the above update. */
 }
 

From d0fda04d7e31e52f19ad7a21fb8d6700db55a6e9 Mon Sep 17 00:00:00 2001
From: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Date: Fri, 20 Apr 2018 01:41:39 -0700
Subject: [PATCH 8/9] i40e/i40evf: take into account queue map from vf when
 handling queues

The expectation of the ops VIRTCHNL_OP_ENABLE_QUEUES and
VIRTCHNL_OP_DISABLE_QUEUES is that the queue map sent by
the VF is taken into account when enabling/disabling
queues in the VF VSI. This patch makes sure that happens.

By breaking out the individual queue set up functions so
that they can be called directly from the i40e_virtchnl_pf.c
file, only the queues as specified by the queue bit map that
accompanies the enable/disable queues ops will be handled.

Signed-off-by: Harshitha Ramamurthy <harshitha.ramamurthy@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h        |  3 +
 drivers/net/ethernet/intel/i40e/i40e_main.c   | 40 ++++++++---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 69 ++++++++++++++++++-
 3 files changed, 99 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 1d59ab6ca90f..7a80652e2500 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -987,6 +987,9 @@ void i40e_service_event_schedule(struct i40e_pf *pf);
 void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
 				  u8 *msg, u16 len);
 
+int i40e_control_wait_tx_q(int seid, struct i40e_pf *pf, int pf_q, bool is_xdp,
+			   bool enable);
+int i40e_control_wait_rx_q(struct i40e_pf *pf, int pf_q, bool enable);
 int i40e_vsi_start_rings(struct i40e_vsi *vsi);
 void i40e_vsi_stop_rings(struct i40e_vsi *vsi);
 void i40e_vsi_stop_rings_no_wait(struct  i40e_vsi *vsi);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 0babde10fa15..b500bbf6c43f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4235,8 +4235,8 @@ static void i40e_control_tx_q(struct i40e_pf *pf, int pf_q, bool enable)
  * @is_xdp: true if the queue is used for XDP
  * @enable: start or stop the queue
  **/
-static int i40e_control_wait_tx_q(int seid, struct i40e_pf *pf, int pf_q,
-				  bool is_xdp, bool enable)
+int i40e_control_wait_tx_q(int seid, struct i40e_pf *pf, int pf_q,
+			   bool is_xdp, bool enable)
 {
 	int ret;
 
@@ -4281,7 +4281,6 @@ static int i40e_vsi_control_tx(struct i40e_vsi *vsi, bool enable)
 		if (ret)
 			break;
 	}
-
 	return ret;
 }
 
@@ -4320,9 +4319,9 @@ static int i40e_pf_rxq_wait(struct i40e_pf *pf, int pf_q, bool enable)
  * @pf_q: the PF queue to configure
  * @enable: start or stop the queue
  *
- * This function enables or disables a single queue. Note that any delay
- * required after the operation is expected to be handled by the caller of
- * this function.
+ * This function enables or disables a single queue. Note that
+ * any delay required after the operation is expected to be
+ * handled by the caller of this function.
  **/
 static void i40e_control_rx_q(struct i40e_pf *pf, int pf_q, bool enable)
 {
@@ -4351,6 +4350,30 @@ static void i40e_control_rx_q(struct i40e_pf *pf, int pf_q, bool enable)
 	wr32(hw, I40E_QRX_ENA(pf_q), rx_reg);
 }
 
+/**
+ * i40e_control_wait_rx_q
+ * @pf: the PF structure
+ * @pf_q: queue being configured
+ * @enable: start or stop the rings
+ *
+ * This function enables or disables a single queue along with waiting
+ * for the change to finish. The caller of this function should handle
+ * the delays needed in the case of disabling queues.
+ **/
+int i40e_control_wait_rx_q(struct i40e_pf *pf, int pf_q, bool enable)
+{
+	int ret = 0;
+
+	i40e_control_rx_q(pf, pf_q, enable);
+
+	/* wait for the change to finish */
+	ret = i40e_pf_rxq_wait(pf, pf_q, enable);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
 /**
  * i40e_vsi_control_rx - Start or stop a VSI's rings
  * @vsi: the VSI being configured
@@ -4363,10 +4386,7 @@ static int i40e_vsi_control_rx(struct i40e_vsi *vsi, bool enable)
 
 	pf_q = vsi->base_queue;
 	for (i = 0; i < vsi->num_queue_pairs; i++, pf_q++) {
-		i40e_control_rx_q(pf, pf_q, enable);
-
-		/* wait for the change to finish */
-		ret = i40e_pf_rxq_wait(pf, pf_q, enable);
+		ret = i40e_control_wait_rx_q(pf, pf_q, enable);
 		if (ret) {
 			dev_info(&pf->pdev->dev,
 				 "VSI seid %d Rx ring %d %sable timeout\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 2ceea63cc6cf..c6d24eaede18 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2153,6 +2153,51 @@ error_param:
 				       aq_ret);
 }
 
+/**
+ * i40e_ctrl_vf_tx_rings
+ * @vsi: the SRIOV VSI being configured
+ * @q_map: bit map of the queues to be enabled
+ * @enable: start or stop the queue
+ **/
+static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
+				 bool enable)
+{
+	struct i40e_pf *pf = vsi->back;
+	int ret = 0;
+	u16 q_id;
+
+	for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
+		ret = i40e_control_wait_tx_q(vsi->seid, pf,
+					     vsi->base_queue + q_id,
+					     false /*is xdp*/, enable);
+		if (ret)
+			break;
+	}
+	return ret;
+}
+
+/**
+ * i40e_ctrl_vf_rx_rings
+ * @vsi: the SRIOV VSI being configured
+ * @q_map: bit map of the queues to be enabled
+ * @enable: start or stop the queue
+ **/
+static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
+				 bool enable)
+{
+	struct i40e_pf *pf = vsi->back;
+	int ret = 0;
+	u16 q_id;
+
+	for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
+		ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
+					     enable);
+		if (ret)
+			break;
+	}
+	return ret;
+}
+
 /**
  * i40e_vc_enable_queues_msg
  * @vf: pointer to the VF info
@@ -2185,8 +2230,17 @@ static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
 		goto error_param;
 	}
 
-	if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx]))
+	/* Use the queue bit map sent by the VF */
+	if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
+				  true)) {
 		aq_ret = I40E_ERR_TIMEOUT;
+		goto error_param;
+	}
+	if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
+				  true)) {
+		aq_ret = I40E_ERR_TIMEOUT;
+		goto error_param;
+	}
 
 	/* need to start the rings for additional ADq VSI's as well */
 	if (vf->adq_enabled) {
@@ -2234,8 +2288,17 @@ static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
 		goto error_param;
 	}
 
-	i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
-
+	/* Use the queue bit map sent by the VF */
+	if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
+				  false)) {
+		aq_ret = I40E_ERR_TIMEOUT;
+		goto error_param;
+	}
+	if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
+				  false)) {
+		aq_ret = I40E_ERR_TIMEOUT;
+		goto error_param;
+	}
 error_param:
 	/* send the response to the VF */
 	return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,

From bf1099b5ea853bddaa0dc4b1c594a2fdbebaf4c9 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 20 Apr 2018 01:41:40 -0700
Subject: [PATCH 9/9] i40e: use %pI4b instead of byte swapping before dev_err

Fix warnings regarding restricted __be32 type usage by strictly
specifying the type of the ipv4 address being printed in the dev_err
statement.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index b500bbf6c43f..c8659fbd7111 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7213,8 +7213,7 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
 			if (mask->dst == cpu_to_be32(0xffffffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
-				mask->dst = be32_to_cpu(mask->dst);
-				dev_err(&pf->pdev->dev, "Bad ip dst mask %pI4\n",
+				dev_err(&pf->pdev->dev, "Bad ip dst mask %pI4b\n",
 					&mask->dst);
 				return I40E_ERR_CONFIG;
 			}
@@ -7224,8 +7223,7 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
 			if (mask->src == cpu_to_be32(0xffffffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
-				mask->src = be32_to_cpu(mask->src);
-				dev_err(&pf->pdev->dev, "Bad ip src mask %pI4\n",
+				dev_err(&pf->pdev->dev, "Bad ip src mask %pI4b\n",
 					&mask->src);
 				return I40E_ERR_CONFIG;
 			}