drivers/net/ethernet/cisco/enic/enic_pp.c - linux - Git at Google

 /*
  * Copyright 2011 Cisco Systems, Inc.  All rights reserved.
  *
  * This program is free software; you may redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  *
  */

 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
 #include <net/ip.h>

 #include "vnic_vic.h"
 #include "enic_res.h"
 #include "enic.h"
 #include "enic_dev.h"
 #include "enic_pp.h"

 /*
  * Checks validity of vf index that came in
  * port profile request
  */
 int enic_is_valid_pp_vf(struct enic *enic, int vf, int *err)
 {
 	if (vf != PORT_SELF_VF) {
 #ifdef CONFIG_PCI_IOV
 		if (enic_sriov_enabled(enic)) {
 			if (vf < 0 || vf >= enic->num_vfs) {
 				*err = -EINVAL;
 				goto err_out;
 			}
 		} else {
 			*err = -EOPNOTSUPP;
 			goto err_out;
 		}
 #else
 		*err = -EOPNOTSUPP;
 		goto err_out;
 #endif
 	}

 	if (vf == PORT_SELF_VF && !enic_is_dynamic(enic)) {
 		*err = -EOPNOTSUPP;
 		goto err_out;
 	}

 	*err = 0;
 	return 1;

 err_out:
 	return 0;
 }

 static int enic_set_port_profile(struct enic *enic, int vf)
 {
 	struct net_device *netdev = enic->netdev;
 	struct enic_port_profile *pp;
 	struct vic_provinfo *vp;
 	const u8 oui[3] = VIC_PROVINFO_CISCO_OUI;
 	const __be16 os_type = htons(VIC_GENERIC_PROV_OS_TYPE_LINUX);
 	const u8 *client_mac;
 	char uuid_str[38];
 	char client_mac_str[18];
 	int err;

 	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
 	if (err)
 		return err;

 	if (!(pp->set & ENIC_SET_NAME) || !strlen(pp->name))
 		return -EINVAL;

 	vp = vic_provinfo_alloc(GFP_KERNEL, oui,
 		VIC_PROVINFO_GENERIC_TYPE);
 	if (!vp)
 		return -ENOMEM;

 	VIC_PROVINFO_ADD_TLV(vp,
 		VIC_GENERIC_PROV_TLV_PORT_PROFILE_NAME_STR,
 		strlen(pp->name) + 1, pp->name);

 	if (!is_zero_ether_addr(pp->mac_addr)) {
 		client_mac = pp->mac_addr;
 	} else if (vf == PORT_SELF_VF) {
 		client_mac = netdev->dev_addr;
 	} else {
 		netdev_err(netdev, "Cannot find pp mac address "
 			"for VF %d\n", vf);
 		err = -EINVAL;
 		goto add_tlv_failure;
 	}

 	VIC_PROVINFO_ADD_TLV(vp,
 		VIC_GENERIC_PROV_TLV_CLIENT_MAC_ADDR,
 		ETH_ALEN, client_mac);

 	snprintf(client_mac_str, sizeof(client_mac_str), "%pM", client_mac);
 	VIC_PROVINFO_ADD_TLV(vp,
 		VIC_GENERIC_PROV_TLV_CLUSTER_PORT_UUID_STR,
 		sizeof(client_mac_str), client_mac_str);

 	if (pp->set & ENIC_SET_INSTANCE) {
 		sprintf(uuid_str, "%pUB", pp->instance_uuid);
 		VIC_PROVINFO_ADD_TLV(vp,
 			VIC_GENERIC_PROV_TLV_CLIENT_UUID_STR,
 			sizeof(uuid_str), uuid_str);
 	}

 	if (pp->set & ENIC_SET_HOST) {
 		sprintf(uuid_str, "%pUB", pp->host_uuid);
 		VIC_PROVINFO_ADD_TLV(vp,
 			VIC_GENERIC_PROV_TLV_HOST_UUID_STR,
 			sizeof(uuid_str), uuid_str);
 	}

 	VIC_PROVINFO_ADD_TLV(vp,
 		VIC_GENERIC_PROV_TLV_OS_TYPE,
 		sizeof(os_type), &os_type);

 	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_init_prov2, (u8 *)vp,
 		vic_provinfo_size(vp));
 	err = enic_dev_status_to_errno(err);

 add_tlv_failure:
 	vic_provinfo_free(vp);

 	return err;
 }

 static int enic_unset_port_profile(struct enic *enic, int vf)
 {
 	int err;

 	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_deinit);
 	if (err)
 		return enic_dev_status_to_errno(err);

 	if (vf == PORT_SELF_VF)
 		enic_reset_addr_lists(enic);

 	return 0;
 }

 static int enic_are_pp_different(struct enic_port_profile *pp1,
 		struct enic_port_profile *pp2)
 {
 	return strcmp(pp1->name, pp2->name) | !!memcmp(pp1->instance_uuid,
 		pp2->instance_uuid, PORT_UUID_MAX) |
 		!!memcmp(pp1->host_uuid, pp2->host_uuid, PORT_UUID_MAX) |
 		!ether_addr_equal(pp1->mac_addr, pp2->mac_addr);
 }

 static int enic_pp_preassociate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp);
 static int enic_pp_disassociate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp);
 static int enic_pp_preassociate_rr(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp);
 static int enic_pp_associate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp);

 static int (*enic_pp_handlers[])(struct enic *enic, int vf,
 		struct enic_port_profile *prev_state,
 		int *restore_pp) = {
 	[PORT_REQUEST_PREASSOCIATE]	= enic_pp_preassociate,
 	[PORT_REQUEST_PREASSOCIATE_RR]	= enic_pp_preassociate_rr,
 	[PORT_REQUEST_ASSOCIATE]	= enic_pp_associate,
 	[PORT_REQUEST_DISASSOCIATE]	= enic_pp_disassociate,
 };

 static const int enic_pp_handlers_count =
 			ARRAY_SIZE(enic_pp_handlers);

 static int enic_pp_preassociate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp)
 {
 	return -EOPNOTSUPP;
 }

 static int enic_pp_disassociate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp)
 {
 	struct net_device *netdev = enic->netdev;
 	struct enic_port_profile *pp;
 	int err;

 	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
 	if (err)
 		return err;

 	/* Deregister mac addresses */
 	if (!is_zero_ether_addr(pp->mac_addr))
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
 			pp->mac_addr);
 	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
 			netdev->dev_addr);

 	return enic_unset_port_profile(enic, vf);
 }

 static int enic_pp_preassociate_rr(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp)
 {
 	struct enic_port_profile *pp;
 	int err;
 	int active = 0;

 	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
 	if (err)
 		return err;

 	if (pp->request != PORT_REQUEST_ASSOCIATE) {
 		/* If pre-associate is not part of an associate.
 		We always disassociate first */
 		err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](enic, vf,
 			prev_pp, restore_pp);
 		if (err)
 			return err;

 		*restore_pp = 0;
 	}

 	*restore_pp = 0;

 	err = enic_set_port_profile(enic, vf);
 	if (err)
 		return err;

 	/* If pre-associate is not part of an associate. */
 	if (pp->request != PORT_REQUEST_ASSOCIATE) {
 		/* Enable device as standby */
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2,
 			active);
 		err = enic_dev_status_to_errno(err);
 	}

 	return err;
 }

 static int enic_pp_associate(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp)
 {
 	struct net_device *netdev = enic->netdev;
 	struct enic_port_profile *pp;
 	int err;
 	int active = 1;

 	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
 	if (err)
 		return err;

 	/* Check if a pre-associate was called before */
 	if (prev_pp->request != PORT_REQUEST_PREASSOCIATE_RR ||
 		(prev_pp->request == PORT_REQUEST_PREASSOCIATE_RR &&
 			enic_are_pp_different(prev_pp, pp))) {
 		err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](
 			enic, vf, prev_pp, restore_pp);
 		if (err)
 			return err;

 		*restore_pp = 0;
 	}

 	err = enic_pp_handlers[PORT_REQUEST_PREASSOCIATE_RR](
 			enic, vf, prev_pp, restore_pp);
 	if (err)
 		return err;

 	*restore_pp = 0;

 	/* Enable device as active */
 	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2, active);
 	err = enic_dev_status_to_errno(err);
 	if (err)
 		return err;

 	/* Register mac address */
 	if (!is_zero_ether_addr(pp->mac_addr))
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
 			pp->mac_addr);
 	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
 			netdev->dev_addr);

 	return 0;
 }

 int enic_process_set_pp_request(struct enic *enic, int vf,
 	struct enic_port_profile *prev_pp, int *restore_pp)
 {
 	struct enic_port_profile *pp;
 	int err;

 	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
 	if (err)
 		return err;

 	if (pp->request >= enic_pp_handlers_count
 		|| !enic_pp_handlers[pp->request])
 		return -EOPNOTSUPP;

 	return enic_pp_handlers[pp->request](enic, vf, prev_pp, restore_pp);
 }

 int enic_process_get_pp_request(struct enic *enic, int vf,
 	int request, u16 *response)
 {
 	int err, status = ERR_SUCCESS;

 	switch (request) {

 	case PORT_REQUEST_PREASSOCIATE_RR:
 	case PORT_REQUEST_ASSOCIATE:
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
 			vnic_dev_enable2_done, &status);
 		break;

 	case PORT_REQUEST_DISASSOCIATE:
 		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
 			vnic_dev_deinit_done, &status);
 		break;

 	default:
 		return -EINVAL;
 	}

 	if (err)
 		status = err;

 	switch (status) {
 	case ERR_SUCCESS:
 		*response = PORT_PROFILE_RESPONSE_SUCCESS;
 		break;
 	case ERR_EINVAL:
 		*response = PORT_PROFILE_RESPONSE_INVALID;
 		break;
 	case ERR_EBADSTATE:
 		*response = PORT_PROFILE_RESPONSE_BADSTATE;
 		break;
 	case ERR_ENOMEM:
 		*response = PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES;
 		break;
 	case ERR_EINPROGRESS:
 		*response = PORT_PROFILE_RESPONSE_INPROGRESS;
 		break;
 	default:
 		*response = PORT_PROFILE_RESPONSE_ERROR;
 		break;
 	}

 	return 0;
 }
	/*
	* Copyright 2011 Cisco Systems, Inc. All rights reserved.
	*
	* This program is free software; you may redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; version 2 of the License.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	* SOFTWARE.
	*
	*/

	#include <linux/kernel.h>
	#include <linux/string.h>
	#include <linux/errno.h>
	#include <linux/types.h>
	#include <linux/netdevice.h>
	#include <linux/etherdevice.h>
	#include <linux/rtnetlink.h>
	#include <net/ip.h>

	#include "vnic_vic.h"
	#include "enic_res.h"
	#include "enic.h"
	#include "enic_dev.h"
	#include "enic_pp.h"

	/*
	* Checks validity of vf index that came in
	* port profile request
	*/
	int enic_is_valid_pp_vf(struct enic enic, int vf, int err)
	{
	if (vf != PORT_SELF_VF) {
	#ifdef CONFIG_PCI_IOV
	if (enic_sriov_enabled(enic)) {
	if (vf < 0 \|\| vf >= enic->num_vfs) {
	*err = -EINVAL;
	goto err_out;
	}
	} else {
	*err = -EOPNOTSUPP;
	goto err_out;
	}
	#else
	*err = -EOPNOTSUPP;
	goto err_out;
	#endif
	}

	if (vf == PORT_SELF_VF && !enic_is_dynamic(enic)) {
	*err = -EOPNOTSUPP;
	goto err_out;
	}

	*err = 0;
	return 1;

	err_out:
	return 0;
	}

	static int enic_set_port_profile(struct enic *enic, int vf)
	{
	struct net_device *netdev = enic->netdev;
	struct enic_port_profile *pp;
	struct vic_provinfo *vp;
	const u8 oui[3] = VIC_PROVINFO_CISCO_OUI;
	const __be16 os_type = htons(VIC_GENERIC_PROV_OS_TYPE_LINUX);
	const u8 *client_mac;
	char uuid_str[38];
	char client_mac_str[18];
	int err;

	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
	if (err)
	return err;

	if (!(pp->set & ENIC_SET_NAME) \|\| !strlen(pp->name))
	return -EINVAL;

	vp = vic_provinfo_alloc(GFP_KERNEL, oui,
	VIC_PROVINFO_GENERIC_TYPE);
	if (!vp)
	return -ENOMEM;

	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_PORT_PROFILE_NAME_STR,
	strlen(pp->name) + 1, pp->name);

	if (!is_zero_ether_addr(pp->mac_addr)) {
	client_mac = pp->mac_addr;
	} else if (vf == PORT_SELF_VF) {
	client_mac = netdev->dev_addr;
	} else {
	netdev_err(netdev, "Cannot find pp mac address "
	"for VF %d\n", vf);
	err = -EINVAL;
	goto add_tlv_failure;
	}

	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_CLIENT_MAC_ADDR,
	ETH_ALEN, client_mac);

	snprintf(client_mac_str, sizeof(client_mac_str), "%pM", client_mac);
	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_CLUSTER_PORT_UUID_STR,
	sizeof(client_mac_str), client_mac_str);

	if (pp->set & ENIC_SET_INSTANCE) {
	sprintf(uuid_str, "%pUB", pp->instance_uuid);
	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_CLIENT_UUID_STR,
	sizeof(uuid_str), uuid_str);
	}

	if (pp->set & ENIC_SET_HOST) {
	sprintf(uuid_str, "%pUB", pp->host_uuid);
	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_HOST_UUID_STR,
	sizeof(uuid_str), uuid_str);
	}

	VIC_PROVINFO_ADD_TLV(vp,
	VIC_GENERIC_PROV_TLV_OS_TYPE,
	sizeof(os_type), &os_type);

	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_init_prov2, (u8 *)vp,
	vic_provinfo_size(vp));
	err = enic_dev_status_to_errno(err);

	add_tlv_failure:
	vic_provinfo_free(vp);

	return err;
	}

	static int enic_unset_port_profile(struct enic *enic, int vf)
	{
	int err;

	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_deinit);
	if (err)
	return enic_dev_status_to_errno(err);

	if (vf == PORT_SELF_VF)
	enic_reset_addr_lists(enic);

	return 0;
	}

	static int enic_are_pp_different(struct enic_port_profile *pp1,
	struct enic_port_profile *pp2)
	{
	return strcmp(pp1->name, pp2->name) \| !!memcmp(pp1->instance_uuid,
	pp2->instance_uuid, PORT_UUID_MAX) \|
	!!memcmp(pp1->host_uuid, pp2->host_uuid, PORT_UUID_MAX) \|
	!ether_addr_equal(pp1->mac_addr, pp2->mac_addr);
	}

	static int enic_pp_preassociate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp);
	static int enic_pp_disassociate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp);
	static int enic_pp_preassociate_rr(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp);
	static int enic_pp_associate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp);

	static int (enic_pp_handlers[])(struct enic enic, int vf,
	struct enic_port_profile *prev_state,
	int *restore_pp) = {
	[PORT_REQUEST_PREASSOCIATE] = enic_pp_preassociate,
	[PORT_REQUEST_PREASSOCIATE_RR] = enic_pp_preassociate_rr,
	[PORT_REQUEST_ASSOCIATE] = enic_pp_associate,
	[PORT_REQUEST_DISASSOCIATE] = enic_pp_disassociate,
	};

	static const int enic_pp_handlers_count =
	ARRAY_SIZE(enic_pp_handlers);

	static int enic_pp_preassociate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp)
	{
	return -EOPNOTSUPP;
	}

	static int enic_pp_disassociate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp)
	{
	struct net_device *netdev = enic->netdev;
	struct enic_port_profile *pp;
	int err;

	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
	if (err)
	return err;

	/* Deregister mac addresses */
	if (!is_zero_ether_addr(pp->mac_addr))
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
	pp->mac_addr);
	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_del_addr,
	netdev->dev_addr);

	return enic_unset_port_profile(enic, vf);
	}

	static int enic_pp_preassociate_rr(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp)
	{
	struct enic_port_profile *pp;
	int err;
	int active = 0;

	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
	if (err)
	return err;

	if (pp->request != PORT_REQUEST_ASSOCIATE) {
	/* If pre-associate is not part of an associate.
	We always disassociate first */
	err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](enic, vf,
	prev_pp, restore_pp);
	if (err)
	return err;

	*restore_pp = 0;
	}

	*restore_pp = 0;

	err = enic_set_port_profile(enic, vf);
	if (err)
	return err;

	/* If pre-associate is not part of an associate. */
	if (pp->request != PORT_REQUEST_ASSOCIATE) {
	/* Enable device as standby */
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2,
	active);
	err = enic_dev_status_to_errno(err);
	}

	return err;
	}

	static int enic_pp_associate(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp)
	{
	struct net_device *netdev = enic->netdev;
	struct enic_port_profile *pp;
	int err;
	int active = 1;

	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
	if (err)
	return err;

	/* Check if a pre-associate was called before */
	if (prev_pp->request != PORT_REQUEST_PREASSOCIATE_RR \|\|
	(prev_pp->request == PORT_REQUEST_PREASSOCIATE_RR &&
	enic_are_pp_different(prev_pp, pp))) {
	err = enic_pp_handlers[PORT_REQUEST_DISASSOCIATE](
	enic, vf, prev_pp, restore_pp);
	if (err)
	return err;

	*restore_pp = 0;
	}

	err = enic_pp_handlers[PORT_REQUEST_PREASSOCIATE_RR](
	enic, vf, prev_pp, restore_pp);
	if (err)
	return err;

	*restore_pp = 0;

	/* Enable device as active */
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_enable2, active);
	err = enic_dev_status_to_errno(err);
	if (err)
	return err;

	/* Register mac address */
	if (!is_zero_ether_addr(pp->mac_addr))
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
	pp->mac_addr);
	else if (vf == PORT_SELF_VF && !is_zero_ether_addr(netdev->dev_addr))
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic, vnic_dev_add_addr,
	netdev->dev_addr);

	return 0;
	}

	int enic_process_set_pp_request(struct enic *enic, int vf,
	struct enic_port_profile prev_pp, int restore_pp)
	{
	struct enic_port_profile *pp;
	int err;

	ENIC_PP_BY_INDEX(enic, vf, pp, &err);
	if (err)
	return err;

	if (pp->request >= enic_pp_handlers_count
	\|\| !enic_pp_handlers[pp->request])
	return -EOPNOTSUPP;

	return enic_pp_handlers[pp->request](enic, vf, prev_pp, restore_pp);
	}

	int enic_process_get_pp_request(struct enic *enic, int vf,
	int request, u16 *response)
	{
	int err, status = ERR_SUCCESS;

	switch (request) {

	case PORT_REQUEST_PREASSOCIATE_RR:
	case PORT_REQUEST_ASSOCIATE:
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
	vnic_dev_enable2_done, &status);
	break;

	case PORT_REQUEST_DISASSOCIATE:
	ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
	vnic_dev_deinit_done, &status);
	break;

	default:
	return -EINVAL;
	}

	if (err)
	status = err;

	switch (status) {
	case ERR_SUCCESS:
	*response = PORT_PROFILE_RESPONSE_SUCCESS;
	break;
	case ERR_EINVAL:
	*response = PORT_PROFILE_RESPONSE_INVALID;
	break;
	case ERR_EBADSTATE:
	*response = PORT_PROFILE_RESPONSE_BADSTATE;
	break;
	case ERR_ENOMEM:
	*response = PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES;
	break;
	case ERR_EINPROGRESS:
	*response = PORT_PROFILE_RESPONSE_INPROGRESS;
	break;
	default:
	*response = PORT_PROFILE_RESPONSE_ERROR;
	break;
	}

	return 0;
	}