IB/opa-vnic: VNIC Ethernet Management Agent (VEMA) interface (cfd34f8e) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/infiniband/ulp/opa_vnic/Makefile

+2 −1

Original line number	Diff line number	Diff line
		@@ -3,4 +3,5 @@
		#
		obj-$(CONFIG_INFINIBAND_OPA_VNIC) += opa_vnic.o

		opa_vnic-y := opa_vnic_netdev.o opa_vnic_encap.o opa_vnic_ethtool.o
		opa_vnic-y := opa_vnic_netdev.o opa_vnic_encap.o opa_vnic_ethtool.o \
		opa_vnic_vema_iface.o

drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -99,6 +99,10 @@
		#define OPA_VNIC_DLID_SD_IS_SRC_MAC(dlid_sd) (!!((dlid_sd) & 0x20))
		#define OPA_VNIC_DLID_SD_GET_DLID(dlid_sd) ((dlid_sd) >> 8)

		/* VNIC Ethernet link status */
		#define OPA_VNIC_ETH_LINK_UP 1
		#define OPA_VNIC_ETH_LINK_DOWN 2

		/**
		* struct opa_vesw_info - OPA vnic switch information
		* @fabric_id: 10-bit fabric id

drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h

+44 −0

Original line number	Diff line number	Diff line
		@@ -160,15 +160,29 @@ struct __opa_veswport_trap {
		u32 reserved;
		} __packed;

		/**
		* struct opa_vnic_ctrl_port - OPA virtual NIC control port
		* @ibdev: pointer to ib device
		* @ops: opa vnic control operations
		*/
		struct opa_vnic_ctrl_port {
		struct ib_device *ibdev;
		struct opa_vnic_ctrl_ops *ops;
		};

		/**
		* struct opa_vnic_adapter - OPA VNIC netdev private data structure
		* @netdev: pointer to associated netdev
		* @ibdev: ib device
		* @cport: pointer to opa vnic control port
		* @rn_ops: rdma netdev's net_device_ops
		* @port_num: OPA port number
		* @vport_num: vesw port number
		* @lock: adapter lock
		* @info: virtual ethernet switch port information
		* @vema_mac_addr: mac address configured by vema
		* @umac_hash: unicast maclist hash
		* @mmac_hash: multicast maclist hash
		* @mactbl: hash table of MAC entries
		* @mactbl_lock: mac table lock
		* @stats_lock: statistics lock
		@@ -177,6 +191,7 @@ struct __opa_veswport_trap {
		struct opa_vnic_adapter {
		struct net_device *netdev;
		struct ib_device *ibdev;
		struct opa_vnic_ctrl_port *cport;
		const struct net_device_ops *rn_ops;

		u8 port_num;
		@@ -186,6 +201,9 @@ struct opa_vnic_adapter {
		struct mutex lock;

		struct __opa_veswport_info info;
		u8 vema_mac_addr[ETH_ALEN];
		u32 umac_hash;
		u32 mmac_hash;
		struct hlist_head __rcu *mactbl;

		/* Lock used to protect updates to mac table */
		@@ -225,6 +243,11 @@ struct opa_vnic_mac_tbl_node {
		#define v_warn(format, arg...) \
		netdev_warn(adapter->netdev, format, ## arg)

		#define c_err(format, arg...) \
		dev_err(&cport->ibdev->dev, format, ## arg)
		#define c_info(format, arg...) \
		dev_info(&cport->ibdev->dev, format, ## arg)

		/* The maximum allowed entries in the mac table */
		#define OPA_VNIC_MAC_TBL_MAX_ENTRIES 2048
		/* Limit of smac entries in mac table */
		@@ -264,11 +287,32 @@ void opa_vnic_rem_netdev(struct opa_vnic_adapter *adapter);
		void opa_vnic_encap_skb(struct opa_vnic_adapter adapter, struct sk_buff skb);
		u8 opa_vnic_get_vl(struct opa_vnic_adapter adapter, struct sk_buff skb);
		u8 opa_vnic_calc_entropy(struct opa_vnic_adapter adapter, struct sk_buff skb);
		void opa_vnic_process_vema_config(struct opa_vnic_adapter *adapter);
		void opa_vnic_release_mac_tbl(struct opa_vnic_adapter *adapter);
		void opa_vnic_query_mac_tbl(struct opa_vnic_adapter *adapter,
		struct opa_veswport_mactable *tbl);
		int opa_vnic_update_mac_tbl(struct opa_vnic_adapter *adapter,
		struct opa_veswport_mactable *tbl);
		void opa_vnic_query_ucast_macs(struct opa_vnic_adapter *adapter,
		struct opa_veswport_iface_macs *macs);
		void opa_vnic_query_mcast_macs(struct opa_vnic_adapter *adapter,
		struct opa_veswport_iface_macs *macs);
		void opa_vnic_get_summary_counters(struct opa_vnic_adapter *adapter,
		struct opa_veswport_summary_counters *cntrs);
		void opa_vnic_get_error_counters(struct opa_vnic_adapter *adapter,
		struct opa_veswport_error_counters *cntrs);
		void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter,
		struct opa_vesw_info *info);
		void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter,
		struct opa_vesw_info *info);
		void opa_vnic_get_per_veswport_info(struct opa_vnic_adapter *adapter,
		struct opa_per_veswport_info *info);
		void opa_vnic_set_per_veswport_info(struct opa_vnic_adapter *adapter,
		struct opa_per_veswport_info *info);
		void opa_vnic_vema_report_event(struct opa_vnic_adapter *adapter, u8 event);
		struct opa_vnic_adapter opa_vnic_add_vport(struct opa_vnic_ctrl_port cport,
		u8 port_num, u8 vport_num);
		void opa_vnic_rem_vport(struct opa_vnic_adapter *adapter);
		void opa_vnic_set_ethtool_ops(struct net_device *netdev);

		#endif /* _OPA_VNIC_INTERNAL_H */

drivers/infiniband/ulp/opa_vnic/opa_vnic_netdev.c

+141 −1

Original line number	Diff line number	Diff line
		@@ -52,6 +52,7 @@

		#include <linux/module.h>
		#include <linux/if_vlan.h>
		#include <linux/crc32.h>

		#include "opa_vnic_internal.h"

		@@ -111,6 +112,79 @@ static u16 opa_vnic_select_queue(struct net_device netdev, struct sk_buff skb,
		return rc;
		}

		/* opa_vnic_process_vema_config - process vema configuration updates */
		void opa_vnic_process_vema_config(struct opa_vnic_adapter *adapter)
		{
		struct __opa_veswport_info *info = &adapter->info;
		struct rdma_netdev *rn = netdev_priv(adapter->netdev);
		u8 port_num[OPA_VESW_MAX_NUM_DEF_PORT] = { 0 };
		struct net_device *netdev = adapter->netdev;
		u8 i, port_count = 0;
		u16 port_mask;

		/* If the base_mac_addr is changed, update the interface mac address */
		if (memcmp(info->vport.base_mac_addr, adapter->vema_mac_addr,
		ARRAY_SIZE(info->vport.base_mac_addr))) {
		struct sockaddr saddr;

		memcpy(saddr.sa_data, info->vport.base_mac_addr,
		ARRAY_SIZE(info->vport.base_mac_addr));
		mutex_lock(&adapter->lock);
		eth_mac_addr(netdev, &saddr);
		memcpy(adapter->vema_mac_addr,
		info->vport.base_mac_addr, ETH_ALEN);
		mutex_unlock(&adapter->lock);
		}

		rn->set_id(netdev, info->vesw.vesw_id);

		/* Handle MTU limit change */
		rtnl_lock();
		netdev->max_mtu = max_t(unsigned int, info->vesw.eth_mtu_non_vlan,
		netdev->min_mtu);
		if (netdev->mtu > netdev->max_mtu)
		dev_set_mtu(netdev, netdev->max_mtu);
		rtnl_unlock();

		/* Update flow to default port redirection table */
		port_mask = info->vesw.def_port_mask;
		for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++) {
		if (port_mask & 1)
		port_num[port_count++] = i;
		port_mask >>= 1;
		}

		/*
		* Build the flow table. Flow table is required when destination LID
		* is not available. Up to OPA_VNIC_FLOW_TBL_SIZE flows supported.
		* Each flow need a default port number to get its dlid from the
		* u_ucast_dlid array.
		*/
		for (i = 0; i < OPA_VNIC_FLOW_TBL_SIZE; i++)
		adapter->flow_tbl[i] = port_count ? port_num[i % port_count] :
		OPA_VNIC_INVALID_PORT;

		/* Operational state can only be DROP_ALL or FORWARDING */
		if (info->vport.config_state == OPA_VNIC_STATE_FORWARDING) {
		info->vport.oper_state = OPA_VNIC_STATE_FORWARDING;
		netif_dormant_off(netdev);
		} else {
		info->vport.oper_state = OPA_VNIC_STATE_DROP_ALL;
		netif_dormant_on(netdev);
		}
		}

		/*
		* Set the power on default values in adapter's vema interface structure.
		*/
		static inline void opa_vnic_set_pod_values(struct opa_vnic_adapter *adapter)
		{
		adapter->info.vport.max_mac_tbl_ent = OPA_VNIC_MAC_TBL_MAX_ENTRIES;
		adapter->info.vport.max_smac_ent = OPA_VNIC_MAX_SMAC_LIMIT;
		adapter->info.vport.config_state = OPA_VNIC_STATE_DROP_ALL;
		adapter->info.vport.eth_link_status = OPA_VNIC_ETH_LINK_DOWN;
		}

		/* opa_vnic_set_mac_addr - change mac address */
		static int opa_vnic_set_mac_addr(struct net_device netdev, void addr)
		{
		@@ -124,8 +198,62 @@ static int opa_vnic_set_mac_addr(struct net_device netdev, void addr)
		mutex_lock(&adapter->lock);
		rc = eth_mac_addr(netdev, addr);
		mutex_unlock(&adapter->lock);

		if (rc)
		return rc;

		adapter->info.vport.uc_macs_gen_count++;
		opa_vnic_vema_report_event(adapter,
		OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE);
		return 0;
		}

		/*
		* opa_vnic_mac_send_event - post event on possible mac list exchange
		* Send trap when digest from uc/mc mac list differs from previous run.
		* Digest is evaluated similar to how cksum does.
		*/
		static void opa_vnic_mac_send_event(struct net_device *netdev, u8 event)
		{
		struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev);
		struct netdev_hw_addr *ha;
		struct netdev_hw_addr_list *hw_list;
		u32 *ref_crc;
		u32 l, crc = 0;

		switch (event) {
		case OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE:
		hw_list = &netdev->uc;
		adapter->info.vport.uc_macs_gen_count++;
		ref_crc = &adapter->umac_hash;
		break;
		case OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE:
		hw_list = &netdev->mc;
		adapter->info.vport.mc_macs_gen_count++;
		ref_crc = &adapter->mmac_hash;
		break;
		default:
		return;
		}
		netdev_hw_addr_list_for_each(ha, hw_list) {
		crc = crc32_le(crc, ha->addr, ETH_ALEN);
		}
		l = netdev_hw_addr_list_count(hw_list) * ETH_ALEN;
		crc = ~crc32_le(crc, (void *)&l, sizeof(l));

		if (crc != *ref_crc) {
		*ref_crc = crc;
		opa_vnic_vema_report_event(adapter, event);
		}
		}

		/* opa_vnic_set_rx_mode - handle uc/mc mac list change */
		static void opa_vnic_set_rx_mode(struct net_device *netdev)
		{
		opa_vnic_mac_send_event(netdev,
		OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE);

		opa_vnic_mac_send_event(netdev,
		OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE);
		}

		/* opa_netdev_open - activate network interface */
		@@ -140,6 +268,10 @@ static int opa_netdev_open(struct net_device *netdev)
		return rc;
		}

		/* Update eth link status and send trap */
		adapter->info.vport.eth_link_status = OPA_VNIC_ETH_LINK_UP;
		opa_vnic_vema_report_event(adapter,
		OPA_VESWPORT_TRAP_ETH_LINK_STATUS_CHANGE);
		return 0;
		}

		@@ -155,6 +287,10 @@ static int opa_netdev_close(struct net_device *netdev)
		return rc;
		}

		/* Update eth link status and send trap */
		adapter->info.vport.eth_link_status = OPA_VNIC_ETH_LINK_DOWN;
		opa_vnic_vema_report_event(adapter,
		OPA_VESWPORT_TRAP_ETH_LINK_STATUS_CHANGE);
		return 0;
		}

		@@ -164,6 +300,7 @@ static const struct net_device_ops opa_netdev_ops = {
		.ndo_stop = opa_netdev_close,
		.ndo_start_xmit = opa_netdev_start_xmit,
		.ndo_get_stats64 = opa_vnic_get_stats64,
		.ndo_set_rx_mode = opa_vnic_set_rx_mode,
		.ndo_select_queue = opa_vnic_select_queue,
		.ndo_set_mac_address = opa_vnic_set_mac_addr,
		};
		@@ -212,6 +349,9 @@ struct opa_vnic_adapter opa_vnic_add_netdev(struct ib_device ibdev,
		SET_NETDEV_DEV(netdev, ibdev->dev.parent);

		opa_vnic_set_ethtool_ops(netdev);

		opa_vnic_set_pod_values(adapter);

		rc = register_netdev(netdev);
		if (rc)
		goto netdev_err;

drivers/infiniband/ulp/opa_vnic/opa_vnic_vema_iface.c

0 → 100644

+390 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright(c) 2017 Intel Corporation.
		*
		* This file is provided under a dual BSD/GPLv2 license. When using or
		* redistributing this file, you may do so under either license.
		*
		* GPL LICENSE SUMMARY
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of version 2 of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that 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.
		*
		* BSD LICENSE
		*
		* Redistribution and use in source and binary forms, with or without
		* modification, are permitted provided that the following conditions
		* are met:
		*
		* - Redistributions of source code must retain the above copyright
		* notice, this list of conditions and the following disclaimer.
		* - Redistributions in binary form must reproduce the above copyright
		* notice, this list of conditions and the following disclaimer in
		* the documentation and/or other materials provided with the
		* distribution.
		* - Neither the name of Intel Corporation nor the names of its
		* contributors may be used to endorse or promote products derived
		* from this software without specific prior written permission.
		*
		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		*
		*/

		/*
		* This file contains OPA VNIC EMA Interface functions.
		*/

		#include "opa_vnic_internal.h"

		/**
		* opa_vnic_vema_report_event - sent trap to report the specified event
		* @adapter: vnic port adapter
		* @event: event to be reported
		*
		* This function calls vema api to sent a trap for the given event.
		*/
		void opa_vnic_vema_report_event(struct opa_vnic_adapter *adapter, u8 event)
		{
		struct __opa_veswport_info *info = &adapter->info;
		struct __opa_veswport_trap trap_data;

		trap_data.fabric_id = info->vesw.fabric_id;
		trap_data.veswid = info->vesw.vesw_id;
		trap_data.veswportnum = info->vport.port_num;
		trap_data.opaportnum = adapter->port_num;
		trap_data.veswportindex = adapter->vport_num;
		trap_data.opcode = event;

		/* Need to send trap here */
		}

		/**
		* opa_vnic_get_error_counters - get summary counters
		* @adapter: vnic port adapter
		* @cntrs: pointer to destination summary counters structure
		*
		* This function populates the summary counters that is maintained by the
		* given adapter to destination address provided.
		*/
		void opa_vnic_get_summary_counters(struct opa_vnic_adapter *adapter,
		struct opa_veswport_summary_counters *cntrs)
		{
		struct opa_vnic_stats vstats;
		__be64 *dst;
		u64 *src;

		memset(&vstats, 0, sizeof(vstats));
		mutex_lock(&adapter->stats_lock);
		adapter->rn_ops->ndo_get_stats64(adapter->netdev, &vstats.netstats);
		mutex_unlock(&adapter->stats_lock);

		cntrs->vp_instance = cpu_to_be16(adapter->vport_num);
		cntrs->vesw_id = cpu_to_be16(adapter->info.vesw.vesw_id);
		cntrs->veswport_num = cpu_to_be32(adapter->port_num);

		cntrs->tx_errors = cpu_to_be64(vstats.netstats.tx_errors);
		cntrs->rx_errors = cpu_to_be64(vstats.netstats.rx_errors);
		cntrs->tx_packets = cpu_to_be64(vstats.netstats.tx_packets);
		cntrs->rx_packets = cpu_to_be64(vstats.netstats.rx_packets);
		cntrs->tx_bytes = cpu_to_be64(vstats.netstats.tx_bytes);
		cntrs->rx_bytes = cpu_to_be64(vstats.netstats.rx_bytes);

		/*
		* This loop depends on layout of
		* opa_veswport_summary_counters opa_vnic_stats structures.
		*/
		for (dst = &cntrs->tx_unicast, src = &vstats.tx_grp.unicast;
		dst < &cntrs->reserved[0]; dst++, src++) {
		dst = cpu_to_be64(src);
		}
		}

		/**
		* opa_vnic_get_error_counters - get error counters
		* @adapter: vnic port adapter
		* @cntrs: pointer to destination error counters structure
		*
		* This function populates the error counters that is maintained by the
		* given adapter to destination address provided.
		*/
		void opa_vnic_get_error_counters(struct opa_vnic_adapter *adapter,
		struct opa_veswport_error_counters *cntrs)
		{
		struct opa_vnic_stats vstats;

		memset(&vstats, 0, sizeof(vstats));
		mutex_lock(&adapter->stats_lock);
		adapter->rn_ops->ndo_get_stats64(adapter->netdev, &vstats.netstats);
		mutex_unlock(&adapter->stats_lock);

		cntrs->vp_instance = cpu_to_be16(adapter->vport_num);
		cntrs->vesw_id = cpu_to_be16(adapter->info.vesw.vesw_id);
		cntrs->veswport_num = cpu_to_be32(adapter->port_num);

		cntrs->tx_errors = cpu_to_be64(vstats.netstats.tx_errors);
		cntrs->rx_errors = cpu_to_be64(vstats.netstats.rx_errors);
		cntrs->tx_dlid_zero = cpu_to_be64(vstats.tx_dlid_zero);
		cntrs->tx_drop_state = cpu_to_be64(vstats.tx_drop_state);
		cntrs->tx_logic = cpu_to_be64(vstats.netstats.tx_fifo_errors +
		vstats.netstats.tx_carrier_errors);

		cntrs->rx_bad_veswid = cpu_to_be64(vstats.netstats.rx_nohandler);
		cntrs->rx_runt = cpu_to_be64(vstats.rx_runt);
		cntrs->rx_oversize = cpu_to_be64(vstats.rx_oversize);
		cntrs->rx_drop_state = cpu_to_be64(vstats.rx_drop_state);
		cntrs->rx_logic = cpu_to_be64(vstats.netstats.rx_fifo_errors);
		}

		/**
		* opa_vnic_get_vesw_info -- Get the vesw information
		* @adapter: vnic port adapter
		* @info: pointer to destination vesw info structure
		*
		* This function copies the vesw info that is maintained by the
		* given adapter to destination address provided.
		*/
		void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter,
		struct opa_vesw_info *info)
		{
		struct __opa_vesw_info *src = &adapter->info.vesw;
		int i;

		info->fabric_id = cpu_to_be16(src->fabric_id);
		info->vesw_id = cpu_to_be16(src->vesw_id);
		memcpy(info->rsvd0, src->rsvd0, ARRAY_SIZE(src->rsvd0));
		info->def_port_mask = cpu_to_be16(src->def_port_mask);
		memcpy(info->rsvd1, src->rsvd1, ARRAY_SIZE(src->rsvd1));
		info->pkey = cpu_to_be16(src->pkey);

		memcpy(info->rsvd2, src->rsvd2, ARRAY_SIZE(src->rsvd2));
		info->u_mcast_dlid = cpu_to_be32(src->u_mcast_dlid);
		for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
		info->u_ucast_dlid[i] = cpu_to_be32(src->u_ucast_dlid[i]);

		memcpy(info->rsvd3, src->rsvd3, ARRAY_SIZE(src->rsvd3));
		for (i = 0; i < OPA_VNIC_MAX_NUM_PCP; i++)
		info->eth_mtu[i] = cpu_to_be16(src->eth_mtu[i]);

		info->eth_mtu_non_vlan = cpu_to_be16(src->eth_mtu_non_vlan);
		memcpy(info->rsvd4, src->rsvd4, ARRAY_SIZE(src->rsvd4));
		}

		/**
		* opa_vnic_set_vesw_info -- Set the vesw information
		* @adapter: vnic port adapter
		* @info: pointer to vesw info structure
		*
		* This function updates the vesw info that is maintained by the
		* given adapter with vesw info provided. Reserved fields are stored
		* and returned back to EM as is.
		*/
		void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter,
		struct opa_vesw_info *info)
		{
		struct __opa_vesw_info *dst = &adapter->info.vesw;
		int i;

		dst->fabric_id = be16_to_cpu(info->fabric_id);
		dst->vesw_id = be16_to_cpu(info->vesw_id);
		memcpy(dst->rsvd0, info->rsvd0, ARRAY_SIZE(info->rsvd0));
		dst->def_port_mask = be16_to_cpu(info->def_port_mask);
		memcpy(dst->rsvd1, info->rsvd1, ARRAY_SIZE(info->rsvd1));
		dst->pkey = be16_to_cpu(info->pkey);

		memcpy(dst->rsvd2, info->rsvd2, ARRAY_SIZE(info->rsvd2));
		dst->u_mcast_dlid = be32_to_cpu(info->u_mcast_dlid);
		for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
		dst->u_ucast_dlid[i] = be32_to_cpu(info->u_ucast_dlid[i]);

		memcpy(dst->rsvd3, info->rsvd3, ARRAY_SIZE(info->rsvd3));
		for (i = 0; i < OPA_VNIC_MAX_NUM_PCP; i++)
		dst->eth_mtu[i] = be16_to_cpu(info->eth_mtu[i]);

		dst->eth_mtu_non_vlan = be16_to_cpu(info->eth_mtu_non_vlan);
		memcpy(dst->rsvd4, info->rsvd4, ARRAY_SIZE(info->rsvd4));
		}

		/**
		* opa_vnic_get_per_veswport_info -- Get the vesw per port information
		* @adapter: vnic port adapter
		* @info: pointer to destination vport info structure
		*
		* This function copies the vesw per port info that is maintained by the
		* given adapter to destination address provided.
		* Note that the read only fields are not copied.
		*/
		void opa_vnic_get_per_veswport_info(struct opa_vnic_adapter *adapter,
		struct opa_per_veswport_info *info)
		{
		struct __opa_per_veswport_info *src = &adapter->info.vport;

		info->port_num = cpu_to_be32(src->port_num);
		info->eth_link_status = src->eth_link_status;
		memcpy(info->rsvd0, src->rsvd0, ARRAY_SIZE(src->rsvd0));

		memcpy(info->base_mac_addr, src->base_mac_addr,
		ARRAY_SIZE(info->base_mac_addr));
		info->config_state = src->config_state;
		info->oper_state = src->oper_state;
		info->max_mac_tbl_ent = cpu_to_be16(src->max_mac_tbl_ent);
		info->max_smac_ent = cpu_to_be16(src->max_smac_ent);
		info->mac_tbl_digest = cpu_to_be32(src->mac_tbl_digest);
		memcpy(info->rsvd1, src->rsvd1, ARRAY_SIZE(src->rsvd1));

		info->encap_slid = cpu_to_be32(src->encap_slid);
		memcpy(info->pcp_to_sc_uc, src->pcp_to_sc_uc,
		ARRAY_SIZE(info->pcp_to_sc_uc));
		memcpy(info->pcp_to_vl_uc, src->pcp_to_vl_uc,
		ARRAY_SIZE(info->pcp_to_vl_uc));
		memcpy(info->pcp_to_sc_mc, src->pcp_to_sc_mc,
		ARRAY_SIZE(info->pcp_to_sc_mc));
		memcpy(info->pcp_to_vl_mc, src->pcp_to_vl_mc,
		ARRAY_SIZE(info->pcp_to_vl_mc));
		info->non_vlan_sc_uc = src->non_vlan_sc_uc;
		info->non_vlan_vl_uc = src->non_vlan_vl_uc;
		info->non_vlan_sc_mc = src->non_vlan_sc_mc;
		info->non_vlan_vl_mc = src->non_vlan_vl_mc;
		memcpy(info->rsvd2, src->rsvd2, ARRAY_SIZE(src->rsvd2));

		info->uc_macs_gen_count = cpu_to_be16(src->uc_macs_gen_count);
		info->mc_macs_gen_count = cpu_to_be16(src->mc_macs_gen_count);
		memcpy(info->rsvd3, src->rsvd3, ARRAY_SIZE(src->rsvd3));
		}

		/**
		* opa_vnic_set_per_veswport_info -- Set vesw per port information
		* @adapter: vnic port adapter
		* @info: pointer to vport info structure
		*
		* This function updates the vesw per port info that is maintained by the
		* given adapter with vesw per port info provided. Reserved fields are
		* stored and returned back to EM as is.
		*/
		void opa_vnic_set_per_veswport_info(struct opa_vnic_adapter *adapter,
		struct opa_per_veswport_info *info)
		{
		struct __opa_per_veswport_info *dst = &adapter->info.vport;

		dst->port_num = be32_to_cpu(info->port_num);
		memcpy(dst->rsvd0, info->rsvd0, ARRAY_SIZE(info->rsvd0));

		memcpy(dst->base_mac_addr, info->base_mac_addr,
		ARRAY_SIZE(dst->base_mac_addr));
		dst->config_state = info->config_state;
		memcpy(dst->rsvd1, info->rsvd1, ARRAY_SIZE(info->rsvd1));

		dst->encap_slid = be32_to_cpu(info->encap_slid);
		memcpy(dst->pcp_to_sc_uc, info->pcp_to_sc_uc,
		ARRAY_SIZE(dst->pcp_to_sc_uc));
		memcpy(dst->pcp_to_vl_uc, info->pcp_to_vl_uc,
		ARRAY_SIZE(dst->pcp_to_vl_uc));
		memcpy(dst->pcp_to_sc_mc, info->pcp_to_sc_mc,
		ARRAY_SIZE(dst->pcp_to_sc_mc));
		memcpy(dst->pcp_to_vl_mc, info->pcp_to_vl_mc,
		ARRAY_SIZE(dst->pcp_to_vl_mc));
		dst->non_vlan_sc_uc = info->non_vlan_sc_uc;
		dst->non_vlan_vl_uc = info->non_vlan_vl_uc;
		dst->non_vlan_sc_mc = info->non_vlan_sc_mc;
		dst->non_vlan_vl_mc = info->non_vlan_vl_mc;
		memcpy(dst->rsvd2, info->rsvd2, ARRAY_SIZE(info->rsvd2));
		memcpy(dst->rsvd3, info->rsvd3, ARRAY_SIZE(info->rsvd3));
		}

		/**
		* opa_vnic_query_mcast_macs - query multicast mac list
		* @adapter: vnic port adapter
		* @macs: pointer mac list
		*
		* This function populates the provided mac list with the configured
		* multicast addresses in the adapter.
		*/
		void opa_vnic_query_mcast_macs(struct opa_vnic_adapter *adapter,
		struct opa_veswport_iface_macs *macs)
		{
		u16 start_idx, num_macs, idx = 0, count = 0;
		struct netdev_hw_addr *ha;

		start_idx = be16_to_cpu(macs->start_idx);
		num_macs = be16_to_cpu(macs->num_macs_in_msg);
		netdev_for_each_mc_addr(ha, adapter->netdev) {
		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];

		if (start_idx > idx++)
		continue;
		else if (num_macs == count)
		break;
		memcpy(entry, ha->addr, sizeof(*entry));
		count++;
		}

		macs->tot_macs_in_lst = cpu_to_be16(netdev_mc_count(adapter->netdev));
		macs->num_macs_in_msg = cpu_to_be16(count);
		macs->gen_count = cpu_to_be16(adapter->info.vport.mc_macs_gen_count);
		}

		/**
		* opa_vnic_query_ucast_macs - query unicast mac list
		* @adapter: vnic port adapter
		* @macs: pointer mac list
		*
		* This function populates the provided mac list with the configured
		* unicast addresses in the adapter.
		*/
		void opa_vnic_query_ucast_macs(struct opa_vnic_adapter *adapter,
		struct opa_veswport_iface_macs *macs)
		{
		u16 start_idx, tot_macs, num_macs, idx = 0, count = 0;
		struct netdev_hw_addr *ha;

		start_idx = be16_to_cpu(macs->start_idx);
		num_macs = be16_to_cpu(macs->num_macs_in_msg);
		/* loop through dev_addrs list first */
		for_each_dev_addr(adapter->netdev, ha) {
		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];

		/* Do not include EM specified MAC address */
		if (!memcmp(adapter->info.vport.base_mac_addr, ha->addr,
		ARRAY_SIZE(adapter->info.vport.base_mac_addr)))
		continue;

		if (start_idx > idx++)
		continue;
		else if (num_macs == count)
		break;
		memcpy(entry, ha->addr, sizeof(*entry));
		count++;
		}

		/* loop through uc list */
		netdev_for_each_uc_addr(ha, adapter->netdev) {
		struct opa_vnic_iface_mac_entry *entry = &macs->entry[count];

		if (start_idx > idx++)
		continue;
		else if (num_macs == count)
		break;
		memcpy(entry, ha->addr, sizeof(*entry));
		count++;
		}

		tot_macs = netdev_hw_addr_list_count(&adapter->netdev->dev_addrs) +
		netdev_uc_count(adapter->netdev);
		macs->tot_macs_in_lst = cpu_to_be16(tot_macs);
		macs->num_macs_in_msg = cpu_to_be16(count);
		macs->gen_count = cpu_to_be16(adapter->info.vport.uc_macs_gen_count);
		}