Merge branch 'intel-next'

Aaron Brown says:

====================
Intel Wired LAN Driver Updates

This series contains updates to the i40e and i40evf drivers.

Vasu adds FCOE support, build options and a documentation pointer to i40e.

Shannon exposes a Firmware API request used to do register writes on the
driver's behalf and disables local loopback on VMDQ VSI in order to stop the
VEB from echoing the VMDQ packets back at the VSI.

Ashish corrects the vf_id offset for virtchnl messages in the case of multiple
PFs, removes support for vf unicast promiscuos mode to disallow VFs from
receiving traffic intended for another VF, updates the vfr_stat state check to
handle the existing and future mechanism and adds an adapter state check to
prevent re-arming the watchdog timer after i40evf_remove has been called and
the timer has been deleted.

Serey fixes an issue where a guest OS would panic when removing the vf driver
while the device is being reset due to an attempt to clean a non initialized
mac_filter_list.

Akeem makes a minor comment change.

Jessie changes an instance of sprintf to snprintf that was missed when the
driver was converted to use snprintf everywhere.

Mitch plugs a few memory leaks.
====================

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

Documentation/networking/i40e.txt

@@ -69,8 +69,11 @@ Additional Configurations
 
   FCoE
   ----
-  Fiber Channel over Ethernet (FCoE) hardware offload is not currently
-  supported.
+  The driver supports Fiber Channel over Ethernet (FCoE) and Data Center
+  Bridging (DCB) functionality. Configuring DCB and FCoE is outside the scope
+  of this driver doc. Refer to http://www.open-fcoe.org/ for FCoE project
+  information and http://www.open-lldp.org/ or email list
+  e1000-eedc@lists.sourceforge.net for DCB information.
 
   MAC and VLAN anti-spoofing feature
   ----------------------------------

drivers/net/ethernet/intel/i40e/Makefile

@@ -44,3 +44,4 @@ i40e-objs := i40e_main.o \
 	i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
+i40e-$(CONFIG_FCOE:m=y) += i40e_fcoe.o

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

@@ -54,6 +54,9 @@
 #include <linux/ptp_clock_kernel.h>
 #include "i40e_type.h"
 #include "i40e_prototype.h"
+#ifdef I40E_FCOE
+#include "i40e_fcoe.h"
+#endif
 #include "i40e_virtchnl.h"
 #include "i40e_virtchnl_pf.h"
 #include "i40e_txrx.h"
@@ -79,6 +82,10 @@
 #define I40E_MAX_QUEUES_PER_TC        64 /* should be a power of 2 */
 #define I40E_FDIR_RING                0
 #define I40E_FDIR_RING_COUNT          32
+#ifdef I40E_FCOE
+#define I40E_DEFAULT_FCOE             8 /* default number of QPs for FCoE */
+#define I40E_MINIMUM_FCOE             1 /* minimum number of QPs for FCoE */
+#endif /* I40E_FCOE */
 #define I40E_MAX_AQ_BUF_SIZE          4096
 #define I40E_AQ_LEN                   32
 #define I40E_AQ_WORK_LIMIT            16
@@ -225,6 +232,10 @@ struct i40e_pf {
 	u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 	u16 num_req_vfs;           /* num vfs requested for this vf */
 	u16 num_vf_qps;            /* num queue pairs per vf */
+#ifdef I40E_FCOE
+	u16 num_fcoe_qps;          /* num fcoe queues this pf has set up */
+	u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
+#endif /* I40E_FCOE */
 	u16 num_lan_qps;           /* num lan queues this pf has set up */
 	u16 num_lan_msix;          /* num queue vectors for the base pf vsi */
 	int queues_left;           /* queues left unclaimed */
@@ -265,6 +276,9 @@ struct i40e_pf {
 #define I40E_FLAG_VMDQ_ENABLED                 (u64)(1 << 7)
 #define I40E_FLAG_FDIR_REQUIRES_REINIT         (u64)(1 << 8)
 #define I40E_FLAG_NEED_LINK_UPDATE             (u64)(1 << 9)
+#ifdef I40E_FCOE
+#define I40E_FLAG_FCOE_ENABLED                 (u64)(1 << 11)
+#endif /* I40E_FCOE */
 #define I40E_FLAG_IN_NETPOLL                   (u64)(1 << 12)
 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED       (u64)(1 << 13)
 #define I40E_FLAG_CLEAN_ADMINQ                 (u64)(1 << 14)
@@ -286,6 +300,10 @@ struct i40e_pf {
 	/* tracks features that get auto disabled by errors */
 	u64 auto_disable_flags;
 
+#ifdef I40E_FCOE
+	struct i40e_fcoe fcoe;
+
+#endif /* I40E_FCOE */
 	bool stat_offsets_loaded;
 	struct i40e_hw_port_stats stats;
 	struct i40e_hw_port_stats stats_offsets;
@@ -408,6 +426,11 @@ struct i40e_vsi {
 	struct rtnl_link_stats64 net_stats_offsets;
 	struct i40e_eth_stats eth_stats;
 	struct i40e_eth_stats eth_stats_offsets;
+#ifdef I40E_FCOE
+	struct i40e_fcoe_stats fcoe_stats;
+	struct i40e_fcoe_stats fcoe_stats_offsets;
+	bool fcoe_stat_offsets_loaded;
+#endif
 	u32 tx_restart;
 	u32 tx_busy;
 	u32 rx_buf_failed;
@@ -598,6 +621,11 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 int i40e_vsi_release(struct i40e_vsi *vsi);
 struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
 				 struct i40e_vsi *start_vsi);
+#ifdef I40E_FCOE
+void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
+			      struct i40e_vsi_context *ctxt,
+			      u8 enabled_tc, bool is_add);
+#endif
 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
@@ -624,7 +652,21 @@ void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector);
 void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector);
 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
+#ifdef I40E_FCOE
+struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
+					     struct net_device *netdev,
+					     struct rtnl_link_stats64 *storage);
+int i40e_set_mac(struct net_device *netdev, void *p);
+void i40e_set_rx_mode(struct net_device *netdev);
+#endif
 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
+#ifdef I40E_FCOE
+void i40e_tx_timeout(struct net_device *netdev);
+int i40e_vlan_rx_add_vid(struct net_device *netdev,
+			 __always_unused __be16 proto, u16 vid);
+int i40e_vlan_rx_kill_vid(struct net_device *netdev,
+			  __always_unused __be16 proto, u16 vid);
+#endif
 int i40e_vsi_open(struct i40e_vsi *vsi);
 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
@@ -634,6 +676,26 @@ struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 				      bool is_vf, bool is_netdev);
+#ifdef I40E_FCOE
+int i40e_open(struct net_device *netdev);
+int i40e_close(struct net_device *netdev);
+int i40e_setup_tc(struct net_device *netdev, u8 tc);
+void i40e_netpoll(struct net_device *netdev);
+int i40e_fcoe_enable(struct net_device *netdev);
+int i40e_fcoe_disable(struct net_device *netdev);
+int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
+u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
+void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
+void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
+int i40e_init_pf_fcoe(struct i40e_pf *pf);
+int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
+void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
+int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
+			     union i40e_rx_desc *rx_desc,
+			     struct sk_buff *skb);
+void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
+			     union i40e_rx_desc *rx_desc, u8 prog_id);
+#endif /* I40E_FCOE */
 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 #ifdef CONFIG_I40E_DCB
 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,

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

@@ -709,6 +709,33 @@ void i40e_pre_tx_queue_cfg(struct i40e_hw *hw, u32 queue, bool enable)
 
 	wr32(hw, I40E_GLLAN_TXPRE_QDIS(reg_block), reg_val);
 }
+#ifdef I40E_FCOE
+
+/**
+ * i40e_get_san_mac_addr - get SAN MAC address
+ * @hw: pointer to the HW structure
+ * @mac_addr: pointer to SAN MAC address
+ *
+ * Reads the adapter's SAN MAC address from NVM
+ **/
+i40e_status i40e_get_san_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
+{
+	struct i40e_aqc_mac_address_read_data addrs;
+	i40e_status status;
+	u16 flags = 0;
+
+	status = i40e_aq_mac_address_read(hw, &flags, &addrs, NULL);
+	if (status)
+		return status;
+
+	if (flags & I40E_AQC_SAN_ADDR_VALID)
+		memcpy(mac_addr, &addrs.pf_san_mac, sizeof(addrs.pf_san_mac));
+	else
+		status = I40E_ERR_INVALID_MAC_ADDR;
+
+	return status;
+}
+#endif
 
 /**
  * i40e_get_media_type - Gets media type
@@ -1974,6 +2001,35 @@ i40e_status i40e_aq_send_msg_to_vf(struct i40e_hw *hw, u16 vfid,
 	return status;
 }
 
+/**
+ * i40e_aq_debug_write_register
+ * @hw: pointer to the hw struct
+ * @reg_addr: register address
+ * @reg_val: register value
+ * @cmd_details: pointer to command details structure or NULL
+ *
+ * Write to a register using the admin queue commands
+ **/
+i40e_status i40e_aq_debug_write_register(struct i40e_hw *hw,
+					u32 reg_addr, u64 reg_val,
+					struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_debug_reg_read_write *cmd =
+		(struct i40e_aqc_debug_reg_read_write *)&desc.params.raw;
+	i40e_status status;
+
+	i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_debug_write_reg);
+
+	cmd->address = cpu_to_le32(reg_addr);
+	cmd->value_high = cpu_to_le32((u32)(reg_val >> 32));
+	cmd->value_low = cpu_to_le32((u32)(reg_val & 0xFFFFFFFF));
+
+	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
+
+	return status;
+}
+
 /**
  * i40e_aq_set_hmc_resource_profile
  * @hw: pointer to the hw struct

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

@@ -697,6 +697,25 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 			 vsi->bw_ets_limit_credits[i],
 			 vsi->bw_ets_max_quanta[i]);
 	}
+#ifdef I40E_FCOE
+	if (vsi->type == I40E_VSI_FCOE) {
+		dev_info(&pf->pdev->dev,
+			 "    fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
+			 vsi->fcoe_stats.rx_fcoe_packets,
+			 vsi->fcoe_stats.rx_fcoe_dwords,
+			 vsi->fcoe_stats.rx_fcoe_dropped);
+		dev_info(&pf->pdev->dev,
+			 "    fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
+			 vsi->fcoe_stats.tx_fcoe_packets,
+			 vsi->fcoe_stats.tx_fcoe_dwords);
+		dev_info(&pf->pdev->dev,
+			 "    fcoe_stats: bad_crc = %llu, last_error = %llu\n",
+			 vsi->fcoe_stats.fcoe_bad_fccrc,
+			 vsi->fcoe_stats.fcoe_last_error);
+		dev_info(&pf->pdev->dev, "    fcoe_stats: ddp_count = %llu\n",
+			 vsi->fcoe_stats.fcoe_ddp_count);
+	}
+#endif
 }
 
 /**

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

@@ -155,16 +155,37 @@ static struct i40e_stats i40e_gstrings_stats[] = {
 	I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 };
 
+#ifdef I40E_FCOE
+static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
+	I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
+	I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
+	I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
+	I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
+	I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
+	I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
+	I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
+	I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
+};
+
+#endif /* I40E_FCOE */
 #define I40E_QUEUE_STATS_LEN(n) \
 	(((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 	    * 2 /* Tx and Rx together */                                     \
 	    * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 #define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 #define I40E_MISC_STATS_LEN	ARRAY_SIZE(i40e_gstrings_misc_stats)
+#ifdef I40E_FCOE
+#define I40E_FCOE_STATS_LEN	ARRAY_SIZE(i40e_gstrings_fcoe_stats)
+#define I40E_VSI_STATS_LEN(n)	(I40E_NETDEV_STATS_LEN + \
+				 I40E_FCOE_STATS_LEN + \
+				 I40E_MISC_STATS_LEN + \
+				 I40E_QUEUE_STATS_LEN((n)))
+#else
 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 				 I40E_MISC_STATS_LEN + \
 				 I40E_QUEUE_STATS_LEN((n)))
+#endif /* I40E_FCOE */
 #define I40E_PFC_STATS_LEN ( \
 		(FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
@@ -1112,6 +1133,13 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 		data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
 			    sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
+#ifdef I40E_FCOE
+	for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
+		p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
+		data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+#endif
 	rcu_read_lock();
 	for (j = 0; j < vsi->num_queue_pairs; j++) {
 		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
@@ -1193,6 +1221,13 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 				 i40e_gstrings_misc_stats[i].stat_string);
 			p += ETH_GSTRING_LEN;
 		}
+#ifdef I40E_FCOE
+		for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
+			snprintf(p, ETH_GSTRING_LEN, "%s",
+				 i40e_gstrings_fcoe_stats[i].stat_string);
+			p += ETH_GSTRING_LEN;
+		}
+#endif
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
 			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
 			p += ETH_GSTRING_LEN;