Commit 235acb18 authored by Johannes Berg's avatar Johannes Berg Committed by Luca Coelho
Browse files

iwlwifi: refactor out paging code 



Refactor the paging code from mvm to be used by different opmodes.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent d28ac7be

drivers/net/wireless/intel/iwlwifi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ iwlwifi-$(CONFIG_IWLDVM) += cfg/1000.o cfg/2000.o cfg/5000.o cfg/6000.o 
iwlwifi-$(CONFIG_IWLMVM) += cfg/7000.o cfg/8000.o cfg/9000.o cfg/a000.o

iwlwifi-objs		+= iwl-trans.o

iwlwifi-objs		+= fw/notif-wait.o

iwlwifi-$(CONFIG_IWLMVM) += fw/paging.o



iwlwifi-objs += $(iwlwifi-m)

drivers/net/wireless/intel/iwlwifi/fw/api.h

+43 −0
Original line number Diff line number Diff line
@@ -226,4 +226,47 @@ struct iwl_phy_db_cmd { 
	u8 data[];

} __packed;



#define NUM_OF_FW_PAGING_BLOCKS	33 /* 32 for data and 1 block for CSS */



/**

 * struct iwl_fw_paging_cmd - paging layout

 *

 * Send to FW the paging layout in the driver.

 *

 * @flags: various flags for the command

 * @block_size: the block size in powers of 2

 * @block_num: number of blocks specified in the command.

 * @device_phy_addr: virtual addresses from device side

 */

struct iwl_fw_paging_cmd {

	__le32 flags;

	__le32 block_size;

	__le32 block_num;

	__le32 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS];

} __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_1 */



/**

 * enum iwl_fw_item_id - FW item IDs

 *

 * @IWL_FW_ITEM_ID_PAGING: Address of the pages that the FW will upload

 *	download

 */

enum iwl_fw_item_id {

	IWL_FW_ITEM_ID_PAGING = 3,

};



/**

 * struct iwl_fw_get_item_cmd - get an item from the fw

 * @item_id: ID of item to obtain, see &enum iwl_fw_item_id

 */

struct iwl_fw_get_item_cmd {

	__le32 item_id;

} __packed; /* FW_GET_ITEM_CMD_API_S_VER_1 */



struct iwl_fw_get_item_resp {

	__le32 item_id;

	__le32 item_byte_cnt;

	__le32 item_val;

} __packed; /* FW_GET_ITEM_RSP_S_VER_1 */



#endif /* __iwl_fw_api_h__*/

drivers/net/wireless/intel/iwlwifi/fw/paging.c

0 → 100644
+417 −0
Original line number Diff line number Diff line 
/******************************************************************************

 *

 * 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

 *

 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.

 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH

 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH

 *

 * 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.

 *

 * The full GNU General Public License is included in this distribution

 * in the file called COPYING.

 *

 * Contact Information:

 *  Intel Linux Wireless <linuxwifi@intel.com>

 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *

 * BSD LICENSE

 *

 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.

 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH

 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH

 * All rights reserved.

 *

 * 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 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.

 *

 *****************************************************************************/

#include "iwl-drv.h"

#include "runtime.h"



/* FIXME */

#define FW_PAGING_BLOCK_CMD 0x4f

#define FW_GET_ITEM_CMD 0x1a



void iwl_free_fw_paging(struct iwl_fw_runtime *fwrt)

{

	int i;



	if (!fwrt->fw_paging_db[0].fw_paging_block)

		return;



	for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {

		struct iwl_fw_paging *paging = &fwrt->fw_paging_db[i];



		if (!paging->fw_paging_block) {

			IWL_DEBUG_FW(fwrt,

				     "Paging: block %d already freed, continue to next page\n",

				     i);



			continue;

		}

		dma_unmap_page(fwrt->trans->dev, paging->fw_paging_phys,

			       paging->fw_paging_size, DMA_BIDIRECTIONAL);



		__free_pages(paging->fw_paging_block,

			     get_order(paging->fw_paging_size));

		paging->fw_paging_block = NULL;

	}

	kfree(fwrt->trans->paging_download_buf);

	fwrt->trans->paging_download_buf = NULL;

	fwrt->trans->paging_db = NULL;



	memset(fwrt->fw_paging_db, 0, sizeof(fwrt->fw_paging_db));

}

IWL_EXPORT_SYMBOL(iwl_free_fw_paging);



static int iwl_alloc_fw_paging_mem(struct iwl_fw_runtime *fwrt,

				   const struct fw_img *image)

{

	struct page *block;

	dma_addr_t phys = 0;

	int blk_idx, order, num_of_pages, size, dma_enabled;



	if (fwrt->fw_paging_db[0].fw_paging_block)

		return 0;



	dma_enabled = is_device_dma_capable(fwrt->trans->dev);



	/* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */

	BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);



	num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;

	fwrt->num_of_paging_blk =

		DIV_ROUND_UP(num_of_pages, NUM_OF_PAGE_PER_GROUP);

	fwrt->num_of_pages_in_last_blk =

		num_of_pages -

		NUM_OF_PAGE_PER_GROUP * (fwrt->num_of_paging_blk - 1);



	IWL_DEBUG_FW(fwrt,

		     "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",

		     fwrt->num_of_paging_blk,

		     fwrt->num_of_pages_in_last_blk);



	/*

	 * Allocate CSS and paging blocks in dram.

	 */

	for (blk_idx = 0; blk_idx < fwrt->num_of_paging_blk + 1; blk_idx++) {

		/* For CSS allocate 4KB, for others PAGING_BLOCK_SIZE (32K) */

		size = blk_idx ? PAGING_BLOCK_SIZE : FW_PAGING_SIZE;

		order = get_order(size);

		block = alloc_pages(GFP_KERNEL, order);

		if (!block) {

			/* free all the previous pages since we failed */

			iwl_free_fw_paging(fwrt);

			return -ENOMEM;

		}



		fwrt->fw_paging_db[blk_idx].fw_paging_block = block;

		fwrt->fw_paging_db[blk_idx].fw_paging_size = size;



		if (dma_enabled) {

			phys = dma_map_page(fwrt->trans->dev, block, 0,

					    PAGE_SIZE << order,

					    DMA_BIDIRECTIONAL);

			if (dma_mapping_error(fwrt->trans->dev, phys)) {

				/*

				 * free the previous pages and the current one

				 * since we failed to map_page.

				 */

				iwl_free_fw_paging(fwrt);

				return -ENOMEM;

			}

			fwrt->fw_paging_db[blk_idx].fw_paging_phys = phys;

		} else {

			fwrt->fw_paging_db[blk_idx].fw_paging_phys =

				PAGING_ADDR_SIG |

				blk_idx << BLOCK_2_EXP_SIZE;

		}



		if (!blk_idx)

			IWL_DEBUG_FW(fwrt,

				     "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",

				     order);

		else

			IWL_DEBUG_FW(fwrt,

				     "Paging: allocated 32K bytes (order %d) for firmware paging.\n",

				     order);

	}



	return 0;

}



static int iwl_fill_paging_mem(struct iwl_fw_runtime *fwrt,

			       const struct fw_img *image)

{

	int sec_idx, idx;

	u32 offset = 0;



	/*

	 * find where is the paging image start point:

	 * if CPU2 exist and it's in paging format, then the image looks like:

	 * CPU1 sections (2 or more)

	 * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2

	 * CPU2 sections (not paged)

	 * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2

	 * non paged to CPU2 paging sec

	 * CPU2 paging CSS

	 * CPU2 paging image (including instruction and data)

	 */

	for (sec_idx = 0; sec_idx < image->num_sec; sec_idx++) {

		if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {

			sec_idx++;

			break;

		}

	}



	/*

	 * If paging is enabled there should be at least 2 more sections left

	 * (one for CSS and one for Paging data)

	 */

	if (sec_idx >= image->num_sec - 1) {

		IWL_ERR(fwrt, "Paging: Missing CSS and/or paging sections\n");

		iwl_free_fw_paging(fwrt);

		return -EINVAL;

	}



	/* copy the CSS block to the dram */

	IWL_DEBUG_FW(fwrt, "Paging: load paging CSS to FW, sec = %d\n",

		     sec_idx);



	memcpy(page_address(fwrt->fw_paging_db[0].fw_paging_block),

	       image->sec[sec_idx].data,

	       fwrt->fw_paging_db[0].fw_paging_size);

	dma_sync_single_for_device(fwrt->trans->dev,

				   fwrt->fw_paging_db[0].fw_paging_phys,

				   fwrt->fw_paging_db[0].fw_paging_size,

				   DMA_BIDIRECTIONAL);



	IWL_DEBUG_FW(fwrt,

		     "Paging: copied %d CSS bytes to first block\n",

		     fwrt->fw_paging_db[0].fw_paging_size);



	sec_idx++;



	/*

	 * copy the paging blocks to the dram

	 * loop index start from 1 since that CSS block already copied to dram

	 * and CSS index is 0.

	 * loop stop at num_of_paging_blk since that last block is not full.

	 */

	for (idx = 1; idx < fwrt->num_of_paging_blk; idx++) {

		struct iwl_fw_paging *block = &fwrt->fw_paging_db[idx];



		memcpy(page_address(block->fw_paging_block),

		       image->sec[sec_idx].data + offset,

		       block->fw_paging_size);

		dma_sync_single_for_device(fwrt->trans->dev,

					   block->fw_paging_phys,

					   block->fw_paging_size,

					   DMA_BIDIRECTIONAL);



		IWL_DEBUG_FW(fwrt,

			     "Paging: copied %d paging bytes to block %d\n",

			     fwrt->fw_paging_db[idx].fw_paging_size,

			     idx);



		offset += fwrt->fw_paging_db[idx].fw_paging_size;

	}



	/* copy the last paging block */

	if (fwrt->num_of_pages_in_last_blk > 0) {

		struct iwl_fw_paging *block = &fwrt->fw_paging_db[idx];



		memcpy(page_address(block->fw_paging_block),

		       image->sec[sec_idx].data + offset,

		       FW_PAGING_SIZE * fwrt->num_of_pages_in_last_blk);

		dma_sync_single_for_device(fwrt->trans->dev,

					   block->fw_paging_phys,

					   block->fw_paging_size,

					   DMA_BIDIRECTIONAL);



		IWL_DEBUG_FW(fwrt,

			     "Paging: copied %d pages in the last block %d\n",

			     fwrt->num_of_pages_in_last_blk, idx);

	}



	return 0;

}



static int iwl_save_fw_paging(struct iwl_fw_runtime *fwrt,

			      const struct fw_img *fw)

{

	int ret;



	ret = iwl_alloc_fw_paging_mem(fwrt, fw);

	if (ret)

		return ret;



	return iwl_fill_paging_mem(fwrt, fw);

}



/* send paging cmd to FW in case CPU2 has paging image */

static int iwl_send_paging_cmd(struct iwl_fw_runtime *fwrt,

			       const struct fw_img *fw)

{

	struct iwl_fw_paging_cmd paging_cmd = {

		.flags = cpu_to_le32(PAGING_CMD_IS_SECURED |

				     PAGING_CMD_IS_ENABLED |

				     (fwrt->num_of_pages_in_last_blk <<

				      PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),

		.block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),

		.block_num = cpu_to_le32(fwrt->num_of_paging_blk),

	};

	struct iwl_host_cmd hcmd = {

		.id = iwl_cmd_id(FW_PAGING_BLOCK_CMD, IWL_ALWAYS_LONG_GROUP, 0),

		.len = { sizeof(paging_cmd), },

		.data = { &paging_cmd, },

	};

	int blk_idx;



	/* loop for for all paging blocks + CSS block */

	for (blk_idx = 0; blk_idx < fwrt->num_of_paging_blk + 1; blk_idx++) {

		dma_addr_t addr = fwrt->fw_paging_db[blk_idx].fw_paging_phys;

		__le32 phy_addr;



		addr = addr >> PAGE_2_EXP_SIZE;

		phy_addr = cpu_to_le32(addr);

		paging_cmd.device_phy_addr[blk_idx] = phy_addr;

	}



	return iwl_trans_send_cmd(fwrt->trans, &hcmd);

}



/*

 * Send paging item cmd to FW in case CPU2 has paging image

 */

static int iwl_trans_get_paging_item(struct iwl_fw_runtime *fwrt)

{

	int ret;

	struct iwl_fw_get_item_cmd fw_get_item_cmd = {

		.item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),

	};

	struct iwl_fw_get_item_resp *item_resp;

	struct iwl_host_cmd cmd = {

		.id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),

		.flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,

		.data = { &fw_get_item_cmd, },

		.len = { sizeof(fw_get_item_cmd), },

	};



	ret = iwl_trans_send_cmd(fwrt->trans, &cmd);

	if (ret) {

		IWL_ERR(fwrt,

			"Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",

			ret);

		return ret;

	}



	item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;

	if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {

		IWL_ERR(fwrt,

			"Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",

			le32_to_cpu(item_resp->item_id));

		ret = -EIO;

		goto exit;

	}



	/* Add an extra page for headers */

	fwrt->trans->paging_download_buf = kzalloc(PAGING_BLOCK_SIZE +

						  FW_PAGING_SIZE,

						  GFP_KERNEL);

	if (!fwrt->trans->paging_download_buf) {

		ret = -ENOMEM;

		goto exit;

	}

	fwrt->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);

	fwrt->trans->paging_db = fwrt->fw_paging_db;

	IWL_DEBUG_FW(fwrt,

		     "Paging: got paging request address (paging_req_addr 0x%08x)\n",

		     fwrt->trans->paging_req_addr);



exit:

	iwl_free_resp(&cmd);



	return ret;

}



int iwl_init_paging(struct iwl_fw_runtime *fwrt, enum iwl_ucode_type type)

{

	const struct fw_img *fw = &fwrt->fw->img[type];

	int ret;



	if (fwrt->trans->cfg->gen2)

		return 0;



	/*

	 * Configure and operate fw paging mechanism.

	 * The driver configures the paging flow only once.

	 * The CPU2 paging image is included in the IWL_UCODE_INIT image.

	 */

	if (!fw->paging_mem_size)

		return 0;



	/*

	 * When dma is not enabled, the driver needs to copy / write

	 * the downloaded / uploaded page to / from the smem.

	 * This gets the location of the place were the pages are

	 * stored.

	 */

	if (!is_device_dma_capable(fwrt->trans->dev)) {

		ret = iwl_trans_get_paging_item(fwrt);

		if (ret) {

			IWL_ERR(fwrt, "failed to get FW paging item\n");

			return ret;

		}

	}



	ret = iwl_save_fw_paging(fwrt, fw);

	if (ret) {

		IWL_ERR(fwrt, "failed to save the FW paging image\n");

		return ret;

	}



	ret = iwl_send_paging_cmd(fwrt, fw);

	if (ret) {

		IWL_ERR(fwrt, "failed to send the paging cmd\n");

		iwl_free_fw_paging(fwrt);

		return ret;

	}



	return 0;

}

IWL_EXPORT_SYMBOL(iwl_init_paging);

drivers/net/wireless/intel/iwlwifi/fw/runtime.h

0 → 100644
+99 −0
Original line number Diff line number Diff line 
/******************************************************************************

 *

 * 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

 *

 * Copyright(c) 2017 Intel Deutschland GmbH

 *

 * 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.

 *

 * The full GNU General Public License is included in this distribution

 * in the file called COPYING.

 *

 * Contact Information:

 *  Intel Linux Wireless <linuxwifi@intel.com>

 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *

 * BSD LICENSE

 *

 * Copyright(c) 2017 Intel Deutschland GmbH

 * All rights reserved.

 *

 * 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 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.

 *

 *****************************************************************************/

#ifndef __iwl_fw_runtime_h__

#define __iwl_fw_runtime_h__



#include "iwl-config.h"

#include "iwl-trans.h"

#include "img.h"

#include "api.h"



/**

 * struct iwl_fw_runtime - runtime data for firmware

 * @fw: firmware image

 * @cfg: NIC configuration

 * @dev: device pointer

 * @fw_paging_db: paging database

 * @num_of_paging_blk: number of paging blocks

 * @num_of_pages_in_last_blk: number of pages in the last block

 */

struct iwl_fw_runtime {

	struct iwl_trans *trans;

	const struct iwl_fw *fw;

	struct device *dev;



	/* Paging */

	struct iwl_fw_paging fw_paging_db[NUM_OF_FW_PAGING_BLOCKS];

	u16 num_of_paging_blk;

	u16 num_of_pages_in_last_blk;

};



static inline void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt,

				       struct iwl_trans *trans,

				       const struct iwl_fw *fw)

{

	memset(fwrt, 0, sizeof(*fwrt));

	fwrt->trans = trans;

	fwrt->fw = fw;

	fwrt->dev = trans->dev;

}



int iwl_init_paging(struct iwl_fw_runtime *fwrt, enum iwl_ucode_type type);

void iwl_free_fw_paging(struct iwl_fw_runtime *fwrt);



#endif /* __iwl_fw_runtime_h__ */

drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h

+0 −44
Original line number Diff line number Diff line
@@ -1000,44 +1000,6 @@ struct iwl_nvm_access_cmd { 
	u8 data[];

} __packed; /* NVM_ACCESS_CMD_API_S_VER_2 */



#define NUM_OF_FW_PAGING_BLOCKS	33 /* 32 for data and 1 block for CSS */



/**

 * struct iwl_fw_paging_cmd - paging layout

 *

 * (FW_PAGING_BLOCK_CMD = 0x4f)

 *

 * Send to FW the paging layout in the driver.

 *

 * @flags: various flags for the command

 * @block_size: the block size in powers of 2

 * @block_num: number of blocks specified in the command.

 * @device_phy_addr: virtual addresses from device side

 */

struct iwl_fw_paging_cmd {

	__le32 flags;

	__le32 block_size;

	__le32 block_num;

	__le32 device_phy_addr[NUM_OF_FW_PAGING_BLOCKS];

} __packed; /* FW_PAGING_BLOCK_CMD_API_S_VER_1 */



/*

 * Fw items ID's

 *

 * @IWL_FW_ITEM_ID_PAGING: Address of the pages that the FW will upload

 *	download

 */

enum iwl_fw_item_id {

	IWL_FW_ITEM_ID_PAGING = 3,

};



/*

 * struct iwl_fw_get_item_cmd - get an item from the fw

 */

struct iwl_fw_get_item_cmd {

	__le32 item_id;

} __packed; /* FW_GET_ITEM_CMD_API_S_VER_1 */



#define CONT_REC_COMMAND_SIZE	80

#define ENABLE_CONT_RECORDING	0x15

#define DISABLE_CONT_RECORDING	0x16
@@ -1058,12 +1020,6 @@ struct iwl_continuous_record_cmd { 
		sizeof(struct iwl_continuous_record_mode)];

} __packed;



struct iwl_fw_get_item_resp {

	__le32 item_id;

	__le32 item_byte_cnt;

	__le32 item_val;

} __packed; /* FW_GET_ITEM_RSP_S_VER_1 */



/**

 * struct iwl_nvm_access_resp_ver2 - response to NVM_ACCESS_CMD

 * @offset: offset in bytes into the section