qca-nss-drv/nss_shaper.c - manifest_repos/sdk - Git at Google

 /*
  **************************************************************************
  * Copyright (c) 2014, 2016-2020 The Linux Foundation. All rights reserved.
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
  * above copyright notice and this permission notice appear in all copies.
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  **************************************************************************
  */

 #include "nss_tx_rx_common.h"

 /*
  * nss_shaper_register_shaping()
  *	Register to obtain an NSS context for basic shaping operations
  */
 void *nss_shaper_register_shaping(void)
 {
 	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
 		nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
 		return NULL;
 	}
 	return (void *)&nss_top_main.nss[nss_top_main.shaping_handler_id];
 }

 /*
  * nss_shaper_unregister_shaping()
  *	Unregister an NSS shaping context
  */
 void nss_shaper_unregister_shaping(void *nss_ctx)
 {
 }

 /*
  * nss_shaper_register_shaper_bounce_interface()
  *	Register for performing shaper bounce operations for interface shaper
  */
 void *nss_shaper_register_shaper_bounce_interface(uint32_t if_num, nss_shaper_bounced_callback_t cb, void *app_data, struct module *owner)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_shaper_bounce_registrant *reg;

 	nss_info("Shaper bounce interface register: %u, cb: %px, app_data: %px, owner: %px",
 			if_num, cb, app_data, owner);

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Shaping enabled?
 	 */
 	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
 		nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
 		return NULL;
 	}

 	/*
 	 * Can we hold the module?
 	 */
 	if (!try_module_get(owner)) {
 		nss_warning("%px: Unable to hold owner", __func__);
 		return NULL;
 	}

 	spin_lock_bh(&nss_top->lock);

 	/*
 	 * Must not have existing registrant
 	 */
 	reg = &nss_top->bounce_interface_registrants[if_num];
 	if (reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		module_put(owner);
 		nss_warning("Already registered: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Register
 	 */
 	reg->bounced_callback = cb;
 	reg->app_data = app_data;
 	reg->owner = owner;
 	reg->registered = true;
 	spin_unlock_bh(&nss_top->lock);

 	return (void *)&nss_top->nss[nss_top->shaping_handler_id];
 }

 /*
  * nss_shaper_unregister_shaper_bounce_interface()
  *	Unregister for shaper bounce operations for interface shaper
  */
 void nss_shaper_unregister_shaper_bounce_interface(uint32_t if_num)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_shaper_bounce_registrant *reg;
 	struct module *owner;

 	nss_info("Shaper bounce interface unregister: %u", if_num);

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	spin_lock_bh(&nss_top->lock);

 	/*
 	 * Must have existing registrant
 	 */
 	reg = &nss_top->bounce_interface_registrants[if_num];
 	if (!reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		nss_warning("Already unregistered: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Unegister
 	 */
 	owner = reg->owner;
 	reg->owner = NULL;
 	reg->registered = false;
 	spin_unlock_bh(&nss_top->lock);

 	module_put(owner);
 }

 /*
  * nss_shaper_register_shaper_bounce_bridge()
  *	Register for performing shaper bounce operations for bridge shaper
  */
 void *nss_shaper_register_shaper_bounce_bridge(uint32_t if_num, nss_shaper_bounced_callback_t cb, void *app_data, struct module *owner)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_ctx_instance *nss_ctx;
 	struct nss_shaper_bounce_registrant *reg;

 	nss_info("Shaper bounce bridge register: %u, cb: %px, app_data: %px, owner: %px",
 			if_num, cb, app_data, owner);

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Shaping enabled?
 	 */
 	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
 		nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
 		return NULL;
 	}

 	/*
 	 * Can we hold the module?
 	 */
 	if (!try_module_get(owner)) {
 		nss_warning("%px: Unable to hold owner", __func__);
 		return NULL;
 	}

 	spin_lock_bh(&nss_top->lock);

 	/*
 	 * Must not have existing registrant
 	 */
 	reg = &nss_top->bounce_bridge_registrants[if_num];
 	if (reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		module_put(owner);
 		nss_warning("Already registered: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Register
 	 */
 	reg->bounced_callback = cb;
 	reg->app_data = app_data;
 	reg->owner = owner;
 	reg->registered = true;
 	spin_unlock_bh(&nss_top->lock);

 	nss_ctx = &nss_top->nss[nss_top->shaping_handler_id];
 	return (void *)nss_ctx;
 }

 /*
  * nss_shaper_unregister_shaper_bounce_bridge()
  *	Unregister for shaper bounce operations for bridge shaper
  */
 void nss_shaper_unregister_shaper_bounce_bridge(uint32_t if_num)
 {
 	struct nss_top_instance *nss_top = &nss_top_main;
 	struct nss_shaper_bounce_registrant *reg;
 	struct module *owner;

 	nss_info("Shaper bounce bridge unregister: %u", if_num);

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	spin_lock_bh(&nss_top->lock);

 	/*
 	 * Must have existing registrant
 	 */
 	reg = &nss_top->bounce_bridge_registrants[if_num];
 	if (!reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		nss_warning("Already unregistered: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Wait until any bounce callback that is active is finished
 	 */
 	while (reg->callback_active) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		yield();
 		spin_lock_bh(&nss_top->stats_lock);
 	}

 	/*
 	 * Unegister
 	 */
 	owner = reg->owner;
 	reg->owner = NULL;
 	reg->registered = false;
 	spin_unlock_bh(&nss_top->lock);

 	module_put(owner);
 }

 /*
  * nss_shaper_bounce_interface_packet()
  *	Bounce a packet to the NSS for interface shaping.
  *
  * You must have registered for interface bounce shaping to call this.
  */
 nss_tx_status_t nss_shaper_bounce_interface_packet(void *ctx, uint32_t if_num, struct sk_buff *skb)
 {
 	struct nss_ctx_instance *nss_ctx = (struct nss_ctx_instance *)ctx;
 	struct nss_top_instance *nss_top = nss_ctx->nss_top;
 	struct nss_shaper_bounce_registrant *reg;
 	int32_t status;

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Must have existing registrant
 	 */
 	spin_lock_bh(&nss_top->lock);
 	reg = &nss_top->bounce_interface_registrants[if_num];
 	if (!reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		nss_warning("unregistered: %u", if_num);
 		return NSS_TX_FAILURE;
 	}
 	spin_unlock_bh(&nss_top->lock);

 	status = nss_core_send_buffer(nss_ctx, if_num, skb, NSS_IF_H2N_DATA_QUEUE,
 					H2N_BUFFER_SHAPER_BOUNCE_INTERFACE, 0);
 	if (status != NSS_CORE_STATUS_SUCCESS) {
 		return NSS_TX_FAILURE;
 	}
 	nss_hal_send_interrupt(nss_ctx, NSS_H2N_INTR_DATA_COMMAND_QUEUE);

 	NSS_PKT_STATS_INC(&nss_ctx->nss_top->stats_drv[NSS_DRV_STATS_TX_PACKET]);
 	return NSS_TX_SUCCESS;
 }

 /*
  * nss_shaper_bounce_bridge_packet()
  *	Bounce a packet to the NSS for bridge shaping.
  *
  * You must have registered for bridge bounce shaping to call this.
  */
 nss_tx_status_t nss_shaper_bounce_bridge_packet(void *ctx, uint32_t if_num, struct sk_buff *skb)
 {
 	struct nss_ctx_instance *nss_ctx = (struct nss_ctx_instance *)ctx;
 	struct nss_top_instance *nss_top = nss_ctx->nss_top;
 	struct nss_shaper_bounce_registrant *reg;
 	int32_t status;

 	/*
 	 * Must be valid interface number
 	 */
 	if (if_num >= NSS_MAX_NET_INTERFACES) {
 		nss_warning("Invalid if_num: %u", if_num);
 		BUG_ON(false);
 	}

 	/*
 	 * Must have existing registrant
 	 */
 	spin_lock_bh(&nss_top->lock);
 	reg = &nss_top->bounce_bridge_registrants[if_num];
 	if (!reg->registered) {
 		spin_unlock_bh(&nss_top->stats_lock);
 		nss_warning("unregistered: %u", if_num);
 		return NSS_TX_FAILURE;
 	}
 	spin_unlock_bh(&nss_top->lock);

 	nss_info("%s: Bridge bounce skb: %px, if_num: %u, ctx: %px", __func__, skb, if_num, nss_ctx);
 	status = nss_core_send_buffer(nss_ctx, if_num, skb, NSS_IF_H2N_DATA_QUEUE,
 					H2N_BUFFER_SHAPER_BOUNCE_BRIDGE, 0);
 	if (status != NSS_CORE_STATUS_SUCCESS) {
 		nss_info("%s: Bridge bounce core send rejected", __func__);
 		return NSS_TX_FAILURE;
 	}
 	nss_hal_send_interrupt(nss_ctx, NSS_H2N_INTR_DATA_COMMAND_QUEUE);

 	NSS_PKT_STATS_INC(&nss_ctx->nss_top->stats_drv[NSS_DRV_STATS_TX_PACKET]);
 	return NSS_TX_SUCCESS;
 }

 /*
  * nss_shaper_get_device()
  *	Gets the original device from probe.
  */
 struct device *nss_shaper_get_dev(void)
 {
 	struct nss_ctx_instance *nss_ctx = &nss_top_main.nss[nss_top_main.shaping_handler_id];
 	return nss_ctx->dev;
 }

 EXPORT_SYMBOL(nss_shaper_bounce_bridge_packet);
 EXPORT_SYMBOL(nss_shaper_bounce_interface_packet);
 EXPORT_SYMBOL(nss_shaper_unregister_shaper_bounce_interface);
 EXPORT_SYMBOL(nss_shaper_register_shaper_bounce_interface);
 EXPORT_SYMBOL(nss_shaper_unregister_shaper_bounce_bridge);
 EXPORT_SYMBOL(nss_shaper_register_shaper_bounce_bridge);
 EXPORT_SYMBOL(nss_shaper_register_shaping);
 EXPORT_SYMBOL(nss_shaper_unregister_shaping);
 EXPORT_SYMBOL(nss_shaper_get_dev);
	/*
	**************************************************************************
	* Copyright (c) 2014, 2016-2020 The Linux Foundation. All rights reserved.
	* Permission to use, copy, modify, and/or distribute this software for
	* any purpose with or without fee is hereby granted, provided that the
	* above copyright notice and this permission notice appear in all copies.
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
	* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	**************************************************************************
	*/

	#include "nss_tx_rx_common.h"

	/*
	* nss_shaper_register_shaping()
	* Register to obtain an NSS context for basic shaping operations
	*/
	void *nss_shaper_register_shaping(void)
	{
	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
	nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
	return NULL;
	}
	return (void *)&nss_top_main.nss[nss_top_main.shaping_handler_id];
	}

	/*
	* nss_shaper_unregister_shaping()
	* Unregister an NSS shaping context
	*/
	void nss_shaper_unregister_shaping(void *nss_ctx)
	{
	}

	/*
	* nss_shaper_register_shaper_bounce_interface()
	* Register for performing shaper bounce operations for interface shaper
	*/
	void nss_shaper_register_shaper_bounce_interface(uint32_t if_num, nss_shaper_bounced_callback_t cb, void app_data, struct module *owner)
	{
	struct nss_top_instance *nss_top = &nss_top_main;
	struct nss_shaper_bounce_registrant *reg;

	nss_info("Shaper bounce interface register: %u, cb: %px, app_data: %px, owner: %px",
	if_num, cb, app_data, owner);

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Shaping enabled?
	*/
	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
	nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
	return NULL;
	}

	/*
	* Can we hold the module?
	*/
	if (!try_module_get(owner)) {
	nss_warning("%px: Unable to hold owner", __func__);
	return NULL;
	}

	spin_lock_bh(&nss_top->lock);

	/*
	* Must not have existing registrant
	*/
	reg = &nss_top->bounce_interface_registrants[if_num];
	if (reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	module_put(owner);
	nss_warning("Already registered: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Register
	*/
	reg->bounced_callback = cb;
	reg->app_data = app_data;
	reg->owner = owner;
	reg->registered = true;
	spin_unlock_bh(&nss_top->lock);

	return (void *)&nss_top->nss[nss_top->shaping_handler_id];
	}

	/*
	* nss_shaper_unregister_shaper_bounce_interface()
	* Unregister for shaper bounce operations for interface shaper
	*/
	void nss_shaper_unregister_shaper_bounce_interface(uint32_t if_num)
	{
	struct nss_top_instance *nss_top = &nss_top_main;
	struct nss_shaper_bounce_registrant *reg;
	struct module *owner;

	nss_info("Shaper bounce interface unregister: %u", if_num);

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	spin_lock_bh(&nss_top->lock);

	/*
	* Must have existing registrant
	*/
	reg = &nss_top->bounce_interface_registrants[if_num];
	if (!reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	nss_warning("Already unregistered: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Unegister
	*/
	owner = reg->owner;
	reg->owner = NULL;
	reg->registered = false;
	spin_unlock_bh(&nss_top->lock);

	module_put(owner);
	}

	/*
	* nss_shaper_register_shaper_bounce_bridge()
	* Register for performing shaper bounce operations for bridge shaper
	*/
	void nss_shaper_register_shaper_bounce_bridge(uint32_t if_num, nss_shaper_bounced_callback_t cb, void app_data, struct module *owner)
	{
	struct nss_top_instance *nss_top = &nss_top_main;
	struct nss_ctx_instance *nss_ctx;
	struct nss_shaper_bounce_registrant *reg;

	nss_info("Shaper bounce bridge register: %u, cb: %px, app_data: %px, owner: %px",
	if_num, cb, app_data, owner);

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Shaping enabled?
	*/
	if (nss_top_main.shaping_handler_id == (uint8_t)-1) {
	nss_warning("%px: SHAPING IS NOT ENABLED", __func__);
	return NULL;
	}

	/*
	* Can we hold the module?
	*/
	if (!try_module_get(owner)) {
	nss_warning("%px: Unable to hold owner", __func__);
	return NULL;
	}

	spin_lock_bh(&nss_top->lock);

	/*
	* Must not have existing registrant
	*/
	reg = &nss_top->bounce_bridge_registrants[if_num];
	if (reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	module_put(owner);
	nss_warning("Already registered: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Register
	*/
	reg->bounced_callback = cb;
	reg->app_data = app_data;
	reg->owner = owner;
	reg->registered = true;
	spin_unlock_bh(&nss_top->lock);

	nss_ctx = &nss_top->nss[nss_top->shaping_handler_id];
	return (void *)nss_ctx;
	}

	/*
	* nss_shaper_unregister_shaper_bounce_bridge()
	* Unregister for shaper bounce operations for bridge shaper
	*/
	void nss_shaper_unregister_shaper_bounce_bridge(uint32_t if_num)
	{
	struct nss_top_instance *nss_top = &nss_top_main;
	struct nss_shaper_bounce_registrant *reg;
	struct module *owner;

	nss_info("Shaper bounce bridge unregister: %u", if_num);

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	spin_lock_bh(&nss_top->lock);

	/*
	* Must have existing registrant
	*/
	reg = &nss_top->bounce_bridge_registrants[if_num];
	if (!reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	nss_warning("Already unregistered: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Wait until any bounce callback that is active is finished
	*/
	while (reg->callback_active) {
	spin_unlock_bh(&nss_top->stats_lock);
	yield();
	spin_lock_bh(&nss_top->stats_lock);
	}

	/*
	* Unegister
	*/
	owner = reg->owner;
	reg->owner = NULL;
	reg->registered = false;
	spin_unlock_bh(&nss_top->lock);

	module_put(owner);
	}

	/*
	* nss_shaper_bounce_interface_packet()
	* Bounce a packet to the NSS for interface shaping.
	*
	* You must have registered for interface bounce shaping to call this.
	*/
	nss_tx_status_t nss_shaper_bounce_interface_packet(void ctx, uint32_t if_num, struct sk_buff skb)
	{
	struct nss_ctx_instance nss_ctx = (struct nss_ctx_instance )ctx;
	struct nss_top_instance *nss_top = nss_ctx->nss_top;
	struct nss_shaper_bounce_registrant *reg;
	int32_t status;

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Must have existing registrant
	*/
	spin_lock_bh(&nss_top->lock);
	reg = &nss_top->bounce_interface_registrants[if_num];
	if (!reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	nss_warning("unregistered: %u", if_num);
	return NSS_TX_FAILURE;
	}
	spin_unlock_bh(&nss_top->lock);

	status = nss_core_send_buffer(nss_ctx, if_num, skb, NSS_IF_H2N_DATA_QUEUE,
	H2N_BUFFER_SHAPER_BOUNCE_INTERFACE, 0);
	if (status != NSS_CORE_STATUS_SUCCESS) {
	return NSS_TX_FAILURE;
	}
	nss_hal_send_interrupt(nss_ctx, NSS_H2N_INTR_DATA_COMMAND_QUEUE);

	NSS_PKT_STATS_INC(&nss_ctx->nss_top->stats_drv[NSS_DRV_STATS_TX_PACKET]);
	return NSS_TX_SUCCESS;
	}

	/*
	* nss_shaper_bounce_bridge_packet()
	* Bounce a packet to the NSS for bridge shaping.
	*
	* You must have registered for bridge bounce shaping to call this.
	*/
	nss_tx_status_t nss_shaper_bounce_bridge_packet(void ctx, uint32_t if_num, struct sk_buff skb)
	{
	struct nss_ctx_instance nss_ctx = (struct nss_ctx_instance )ctx;
	struct nss_top_instance *nss_top = nss_ctx->nss_top;
	struct nss_shaper_bounce_registrant *reg;
	int32_t status;

	/*
	* Must be valid interface number
	*/
	if (if_num >= NSS_MAX_NET_INTERFACES) {
	nss_warning("Invalid if_num: %u", if_num);
	BUG_ON(false);
	}

	/*
	* Must have existing registrant
	*/
	spin_lock_bh(&nss_top->lock);
	reg = &nss_top->bounce_bridge_registrants[if_num];
	if (!reg->registered) {
	spin_unlock_bh(&nss_top->stats_lock);
	nss_warning("unregistered: %u", if_num);
	return NSS_TX_FAILURE;
	}
	spin_unlock_bh(&nss_top->lock);

	nss_info("%s: Bridge bounce skb: %px, if_num: %u, ctx: %px", __func__, skb, if_num, nss_ctx);
	status = nss_core_send_buffer(nss_ctx, if_num, skb, NSS_IF_H2N_DATA_QUEUE,
	H2N_BUFFER_SHAPER_BOUNCE_BRIDGE, 0);
	if (status != NSS_CORE_STATUS_SUCCESS) {
	nss_info("%s: Bridge bounce core send rejected", __func__);
	return NSS_TX_FAILURE;
	}
	nss_hal_send_interrupt(nss_ctx, NSS_H2N_INTR_DATA_COMMAND_QUEUE);

	NSS_PKT_STATS_INC(&nss_ctx->nss_top->stats_drv[NSS_DRV_STATS_TX_PACKET]);
	return NSS_TX_SUCCESS;
	}

	/*
	* nss_shaper_get_device()
	* Gets the original device from probe.
	*/
	struct device *nss_shaper_get_dev(void)
	{
	struct nss_ctx_instance *nss_ctx = &nss_top_main.nss[nss_top_main.shaping_handler_id];
	return nss_ctx->dev;
	}

	EXPORT_SYMBOL(nss_shaper_bounce_bridge_packet);
	EXPORT_SYMBOL(nss_shaper_bounce_interface_packet);
	EXPORT_SYMBOL(nss_shaper_unregister_shaper_bounce_interface);
	EXPORT_SYMBOL(nss_shaper_register_shaper_bounce_interface);
	EXPORT_SYMBOL(nss_shaper_unregister_shaper_bounce_bridge);
	EXPORT_SYMBOL(nss_shaper_register_shaper_bounce_bridge);
	EXPORT_SYMBOL(nss_shaper_register_shaping);
	EXPORT_SYMBOL(nss_shaper_unregister_shaping);
	EXPORT_SYMBOL(nss_shaper_get_dev);