drivers/net/ethernet/intel/i40evf/i40e_hmc.h - kernel/msm-4.9 - Gitiles

 /*******************************************************************************
  *
  * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
  * Copyright(c) 2013 - 2014 Intel Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope 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.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  * The full GNU General Public License is included in this distribution in
  * the file called "COPYING".
  *
  * Contact Information:
  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  *
  ******************************************************************************/

 #ifndef _I40E_HMC_H_
 #define _I40E_HMC_H_

 #define I40E_HMC_MAX_BP_COUNT 512

 /* forward-declare the HW struct for the compiler */
 struct i40e_hw;

 #define I40E_HMC_INFO_SIGNATURE		0x484D5347 /* HMSG */
 #define I40E_HMC_PD_CNT_IN_SD		512
 #define I40E_HMC_DIRECT_BP_SIZE		0x200000 /* 2M */
 #define I40E_HMC_PAGED_BP_SIZE		4096
 #define I40E_HMC_PD_BP_BUF_ALIGNMENT	4096
 #define I40E_FIRST_VF_FPM_ID		16

 struct i40e_hmc_obj_info {
 	u64 base;	/* base addr in FPM */
 	u32 max_cnt;	/* max count available for this hmc func */
 	u32 cnt;	/* count of objects driver actually wants to create */
 	u64 size;	/* size in bytes of one object */
 };

 enum i40e_sd_entry_type {
 	I40E_SD_TYPE_INVALID = 0,
 	I40E_SD_TYPE_PAGED   = 1,
 	I40E_SD_TYPE_DIRECT  = 2
 };

 struct i40e_hmc_bp {
 	enum i40e_sd_entry_type entry_type;
 	struct i40e_dma_mem addr; /* populate to be used by hw */
 	u32 sd_pd_index;
 	u32 ref_cnt;
 };

 struct i40e_hmc_pd_entry {
 	struct i40e_hmc_bp bp;
 	u32 sd_index;
 	bool valid;
 };

 struct i40e_hmc_pd_table {
 	struct i40e_dma_mem pd_page_addr; /* populate to be used by hw */
 	struct i40e_hmc_pd_entry  *pd_entry; /* [512] for sw book keeping */
 	struct i40e_virt_mem pd_entry_virt_mem; /* virt mem for pd_entry */

 	u32 ref_cnt;
 	u32 sd_index;
 };

 struct i40e_hmc_sd_entry {
 	enum i40e_sd_entry_type entry_type;
 	bool valid;

 	union {
 		struct i40e_hmc_pd_table pd_table;
 		struct i40e_hmc_bp bp;
 	} u;
 };

 struct i40e_hmc_sd_table {
 	struct i40e_virt_mem addr; /* used to track sd_entry allocations */
 	u32 sd_cnt;
 	u32 ref_cnt;
 	struct i40e_hmc_sd_entry *sd_entry; /* (sd_cnt*512) entries max */
 };

 struct i40e_hmc_info {
 	u32 signature;
 	/* equals to pci func num for PF and dynamically allocated for VFs */
 	u8 hmc_fn_id;
 	u16 first_sd_index; /* index of the first available SD */

 	/* hmc objects */
 	struct i40e_hmc_obj_info *hmc_obj;
 	struct i40e_virt_mem hmc_obj_virt_mem;
 	struct i40e_hmc_sd_table sd_table;
 };

 #define I40E_INC_SD_REFCNT(sd_table)	((sd_table)->ref_cnt++)
 #define I40E_INC_PD_REFCNT(pd_table)	((pd_table)->ref_cnt++)
 #define I40E_INC_BP_REFCNT(bp)		((bp)->ref_cnt++)

 #define I40E_DEC_SD_REFCNT(sd_table)	((sd_table)->ref_cnt--)
 #define I40E_DEC_PD_REFCNT(pd_table)	((pd_table)->ref_cnt--)
 #define I40E_DEC_BP_REFCNT(bp)		((bp)->ref_cnt--)

 /**
  * I40E_SET_PF_SD_ENTRY - marks the sd entry as valid in the hardware
  * @hw: pointer to our hw struct
  * @pa: pointer to physical address
  * @sd_index: segment descriptor index
  * @type: if sd entry is direct or paged
  **/
 #define I40E_SET_PF_SD_ENTRY(hw, pa, sd_index, type)			\
 {									\
 	u32 val1, val2, val3;						\
 	val1 = (u32)(upper_32_bits(pa));				\
 	val2 = (u32)(pa) | (I40E_HMC_MAX_BP_COUNT <<			\
 		 I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) |		\
 		((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) <<		\
 		I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT) |			\
 		(1 << I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT);		\
 	val3 = (sd_index) | (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT);	\
 	wr32((hw), I40E_PFHMC_SDDATAHIGH, val1);			\
 	wr32((hw), I40E_PFHMC_SDDATALOW, val2);				\
 	wr32((hw), I40E_PFHMC_SDCMD, val3);				\
 }

 /**
  * I40E_CLEAR_PF_SD_ENTRY - marks the sd entry as invalid in the hardware
  * @hw: pointer to our hw struct
  * @sd_index: segment descriptor index
  * @type: if sd entry is direct or paged
  **/
 #define I40E_CLEAR_PF_SD_ENTRY(hw, sd_index, type)			\
 {									\
 	u32 val2, val3;							\
 	val2 = (I40E_HMC_MAX_BP_COUNT <<				\
 		I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) |		\
 		((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) <<		\
 		I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT);			\
 	val3 = (sd_index) | (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT);	\
 	wr32((hw), I40E_PFHMC_SDDATAHIGH, 0);				\
 	wr32((hw), I40E_PFHMC_SDDATALOW, val2);				\
 	wr32((hw), I40E_PFHMC_SDCMD, val3);				\
 }

 /**
  * I40E_INVALIDATE_PF_HMC_PD - Invalidates the pd cache in the hardware
  * @hw: pointer to our hw struct
  * @sd_idx: segment descriptor index
  * @pd_idx: page descriptor index
  **/
 #define I40E_INVALIDATE_PF_HMC_PD(hw, sd_idx, pd_idx)			\
 	wr32((hw), I40E_PFHMC_PDINV,					\
 	    (((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) |		\
 	     ((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT)))

 #define I40E_INVALIDATE_VF_HMC_PD(hw, sd_idx, pd_idx, hmc_fn_id)	   \
 	wr32((hw), I40E_GLHMC_VFPDINV((hmc_fn_id) - I40E_FIRST_VF_FPM_ID), \
 	     (((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) |		   \
 	      ((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT)))

 /**
  * I40E_FIND_SD_INDEX_LIMIT - finds segment descriptor index limit
  * @hmc_info: pointer to the HMC configuration information structure
  * @type: type of HMC resources we're searching
  * @index: starting index for the object
  * @cnt: number of objects we're trying to create
  * @sd_idx: pointer to return index of the segment descriptor in question
  * @sd_limit: pointer to return the maximum number of segment descriptors
  *
  * This function calculates the segment descriptor index and index limit
  * for the resource defined by i40e_hmc_rsrc_type.
  **/
 #define I40E_FIND_SD_INDEX_LIMIT(hmc_info, type, index, cnt, sd_idx, sd_limit)\
 {									\
 	u64 fpm_addr, fpm_limit;					\
 	fpm_addr = (hmc_info)->hmc_obj[(type)].base +			\
 		   (hmc_info)->hmc_obj[(type)].size * (index);		\
 	fpm_limit = fpm_addr + (hmc_info)->hmc_obj[(type)].size * (cnt);\
 	*(sd_idx) = (u32)(fpm_addr / I40E_HMC_DIRECT_BP_SIZE);		\
 	*(sd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_DIRECT_BP_SIZE);	\
 	/* add one more to the limit to correct our range */		\
 	*(sd_limit) += 1;						\
 }

 /**
  * I40E_FIND_PD_INDEX_LIMIT - finds page descriptor index limit
  * @hmc_info: pointer to the HMC configuration information struct
  * @type: HMC resource type we're examining
  * @idx: starting index for the object
  * @cnt: number of objects we're trying to create
  * @pd_index: pointer to return page descriptor index
  * @pd_limit: pointer to return page descriptor index limit
  *
  * Calculates the page descriptor index and index limit for the resource
  * defined by i40e_hmc_rsrc_type.
  **/
 #define I40E_FIND_PD_INDEX_LIMIT(hmc_info, type, idx, cnt, pd_index, pd_limit)\
 {									\
 	u64 fpm_adr, fpm_limit;						\
 	fpm_adr = (hmc_info)->hmc_obj[(type)].base +			\
 		  (hmc_info)->hmc_obj[(type)].size * (idx);		\
 	fpm_limit = fpm_adr + (hmc_info)->hmc_obj[(type)].size * (cnt);	\
 	*(pd_index) = (u32)(fpm_adr / I40E_HMC_PAGED_BP_SIZE);		\
 	*(pd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_PAGED_BP_SIZE);	\
 	/* add one more to the limit to correct our range */		\
 	*(pd_limit) += 1;						\
 }
 i40e_status i40e_add_sd_table_entry(struct i40e_hw *hw,
 					      struct i40e_hmc_info *hmc_info,
 					      u32 sd_index,
 					      enum i40e_sd_entry_type type,
 					      u64 direct_mode_sz);

 i40e_status i40e_add_pd_table_entry(struct i40e_hw *hw,
 					      struct i40e_hmc_info *hmc_info,
 					      u32 pd_index);
 i40e_status i40e_remove_pd_bp(struct i40e_hw *hw,
 					struct i40e_hmc_info *hmc_info,
 					u32 idx, bool is_pf);
 i40e_status i40e_prep_remove_sd_bp(struct i40e_hmc_info *hmc_info,
 					     u32 idx);
 i40e_status i40e_remove_sd_bp_new(struct i40e_hw *hw,
 					    struct i40e_hmc_info *hmc_info,
 					    u32 idx, bool is_pf);
 i40e_status i40e_prep_remove_pd_page(struct i40e_hmc_info *hmc_info,
 					       u32 idx);
 i40e_status i40e_remove_pd_page_new(struct i40e_hw *hw,
 					      struct i40e_hmc_info *hmc_info,
 					      u32 idx, bool is_pf);

 #endif /* _I40E_HMC_H_ */
	/*******************************************************************************
	*
	* Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
	* Copyright(c) 2013 - 2014 Intel Corporation.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope 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.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program. If not, see <http://www.gnu.org/licenses/>.
	*
	* The full GNU General Public License is included in this distribution in
	* the file called "COPYING".
	*
	* Contact Information:
	* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	*
	******************************************************************************/

	#ifndef _I40E_HMC_H_
	#define _I40E_HMC_H_

	#define I40E_HMC_MAX_BP_COUNT 512

	/* forward-declare the HW struct for the compiler */
	struct i40e_hw;

	#define I40E_HMC_INFO_SIGNATURE 0x484D5347 /* HMSG */
	#define I40E_HMC_PD_CNT_IN_SD 512
	#define I40E_HMC_DIRECT_BP_SIZE 0x200000 /* 2M */
	#define I40E_HMC_PAGED_BP_SIZE 4096
	#define I40E_HMC_PD_BP_BUF_ALIGNMENT 4096
	#define I40E_FIRST_VF_FPM_ID 16

	struct i40e_hmc_obj_info {
	u64 base; /* base addr in FPM */
	u32 max_cnt; /* max count available for this hmc func */
	u32 cnt; /* count of objects driver actually wants to create */
	u64 size; /* size in bytes of one object */
	};

	enum i40e_sd_entry_type {
	I40E_SD_TYPE_INVALID = 0,
	I40E_SD_TYPE_PAGED = 1,
	I40E_SD_TYPE_DIRECT = 2
	};

	struct i40e_hmc_bp {
	enum i40e_sd_entry_type entry_type;
	struct i40e_dma_mem addr; /* populate to be used by hw */
	u32 sd_pd_index;
	u32 ref_cnt;
	};

	struct i40e_hmc_pd_entry {
	struct i40e_hmc_bp bp;
	u32 sd_index;
	bool valid;
	};

	struct i40e_hmc_pd_table {
	struct i40e_dma_mem pd_page_addr; /* populate to be used by hw */
	struct i40e_hmc_pd_entry pd_entry; / [512] for sw book keeping */
	struct i40e_virt_mem pd_entry_virt_mem; /* virt mem for pd_entry */

	u32 ref_cnt;
	u32 sd_index;
	};

	struct i40e_hmc_sd_entry {
	enum i40e_sd_entry_type entry_type;
	bool valid;

	union {
	struct i40e_hmc_pd_table pd_table;
	struct i40e_hmc_bp bp;
	} u;
	};

	struct i40e_hmc_sd_table {
	struct i40e_virt_mem addr; /* used to track sd_entry allocations */
	u32 sd_cnt;
	u32 ref_cnt;
	struct i40e_hmc_sd_entry sd_entry; / (sd_cnt512) entries max /
	};

	struct i40e_hmc_info {
	u32 signature;
	/* equals to pci func num for PF and dynamically allocated for VFs */
	u8 hmc_fn_id;
	u16 first_sd_index; /* index of the first available SD */

	/* hmc objects */
	struct i40e_hmc_obj_info *hmc_obj;
	struct i40e_virt_mem hmc_obj_virt_mem;
	struct i40e_hmc_sd_table sd_table;
	};

	#define I40E_INC_SD_REFCNT(sd_table) ((sd_table)->ref_cnt++)
	#define I40E_INC_PD_REFCNT(pd_table) ((pd_table)->ref_cnt++)
	#define I40E_INC_BP_REFCNT(bp) ((bp)->ref_cnt++)

	#define I40E_DEC_SD_REFCNT(sd_table) ((sd_table)->ref_cnt--)
	#define I40E_DEC_PD_REFCNT(pd_table) ((pd_table)->ref_cnt--)
	#define I40E_DEC_BP_REFCNT(bp) ((bp)->ref_cnt--)

	/**
	* I40E_SET_PF_SD_ENTRY - marks the sd entry as valid in the hardware
	* @hw: pointer to our hw struct
	* @pa: pointer to physical address
	* @sd_index: segment descriptor index
	* @type: if sd entry is direct or paged
	**/
	#define I40E_SET_PF_SD_ENTRY(hw, pa, sd_index, type) \
	{ \
	u32 val1, val2, val3; \
	val1 = (u32)(upper_32_bits(pa)); \
	val2 = (u32)(pa) \| (I40E_HMC_MAX_BP_COUNT << \
	I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) \| \
	((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) << \
	I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT) \| \
	(1 << I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT); \
	val3 = (sd_index) \| (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT); \
	wr32((hw), I40E_PFHMC_SDDATAHIGH, val1); \
	wr32((hw), I40E_PFHMC_SDDATALOW, val2); \
	wr32((hw), I40E_PFHMC_SDCMD, val3); \
	}

	/**
	* I40E_CLEAR_PF_SD_ENTRY - marks the sd entry as invalid in the hardware
	* @hw: pointer to our hw struct
	* @sd_index: segment descriptor index
	* @type: if sd entry is direct or paged
	**/
	#define I40E_CLEAR_PF_SD_ENTRY(hw, sd_index, type) \
	{ \
	u32 val2, val3; \
	val2 = (I40E_HMC_MAX_BP_COUNT << \
	I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) \| \
	((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) << \
	I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT); \
	val3 = (sd_index) \| (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT); \
	wr32((hw), I40E_PFHMC_SDDATAHIGH, 0); \
	wr32((hw), I40E_PFHMC_SDDATALOW, val2); \
	wr32((hw), I40E_PFHMC_SDCMD, val3); \
	}

	/**
	* I40E_INVALIDATE_PF_HMC_PD - Invalidates the pd cache in the hardware
	* @hw: pointer to our hw struct
	* @sd_idx: segment descriptor index
	* @pd_idx: page descriptor index
	**/
	#define I40E_INVALIDATE_PF_HMC_PD(hw, sd_idx, pd_idx) \
	wr32((hw), I40E_PFHMC_PDINV, \
	(((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) \| \
	((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT)))

	#define I40E_INVALIDATE_VF_HMC_PD(hw, sd_idx, pd_idx, hmc_fn_id) \
	wr32((hw), I40E_GLHMC_VFPDINV((hmc_fn_id) - I40E_FIRST_VF_FPM_ID), \
	(((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) \| \
	((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT)))

	/**
	* I40E_FIND_SD_INDEX_LIMIT - finds segment descriptor index limit
	* @hmc_info: pointer to the HMC configuration information structure
	* @type: type of HMC resources we're searching
	* @index: starting index for the object
	* @cnt: number of objects we're trying to create
	* @sd_idx: pointer to return index of the segment descriptor in question
	* @sd_limit: pointer to return the maximum number of segment descriptors
	*
	* This function calculates the segment descriptor index and index limit
	* for the resource defined by i40e_hmc_rsrc_type.
	**/
	#define I40E_FIND_SD_INDEX_LIMIT(hmc_info, type, index, cnt, sd_idx, sd_limit)\
	{ \
	u64 fpm_addr, fpm_limit; \
	fpm_addr = (hmc_info)->hmc_obj[(type)].base + \
	(hmc_info)->hmc_obj[(type)].size * (index); \
	fpm_limit = fpm_addr + (hmc_info)->hmc_obj[(type)].size * (cnt);\
	*(sd_idx) = (u32)(fpm_addr / I40E_HMC_DIRECT_BP_SIZE); \
	*(sd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_DIRECT_BP_SIZE); \
	/* add one more to the limit to correct our range */ \
	*(sd_limit) += 1; \
	}

	/**
	* I40E_FIND_PD_INDEX_LIMIT - finds page descriptor index limit
	* @hmc_info: pointer to the HMC configuration information struct
	* @type: HMC resource type we're examining
	* @idx: starting index for the object
	* @cnt: number of objects we're trying to create
	* @pd_index: pointer to return page descriptor index
	* @pd_limit: pointer to return page descriptor index limit
	*
	* Calculates the page descriptor index and index limit for the resource
	* defined by i40e_hmc_rsrc_type.
	**/
	#define I40E_FIND_PD_INDEX_LIMIT(hmc_info, type, idx, cnt, pd_index, pd_limit)\
	{ \
	u64 fpm_adr, fpm_limit; \
	fpm_adr = (hmc_info)->hmc_obj[(type)].base + \
	(hmc_info)->hmc_obj[(type)].size * (idx); \
	fpm_limit = fpm_adr + (hmc_info)->hmc_obj[(type)].size * (cnt); \
	*(pd_index) = (u32)(fpm_adr / I40E_HMC_PAGED_BP_SIZE); \
	*(pd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_PAGED_BP_SIZE); \
	/* add one more to the limit to correct our range */ \
	*(pd_limit) += 1; \
	}
	i40e_status i40e_add_sd_table_entry(struct i40e_hw *hw,
	struct i40e_hmc_info *hmc_info,
	u32 sd_index,
	enum i40e_sd_entry_type type,
	u64 direct_mode_sz);

	i40e_status i40e_add_pd_table_entry(struct i40e_hw *hw,
	struct i40e_hmc_info *hmc_info,
	u32 pd_index);
	i40e_status i40e_remove_pd_bp(struct i40e_hw *hw,
	struct i40e_hmc_info *hmc_info,
	u32 idx, bool is_pf);
	i40e_status i40e_prep_remove_sd_bp(struct i40e_hmc_info *hmc_info,
	u32 idx);
	i40e_status i40e_remove_sd_bp_new(struct i40e_hw *hw,
	struct i40e_hmc_info *hmc_info,
	u32 idx, bool is_pf);
	i40e_status i40e_prep_remove_pd_page(struct i40e_hmc_info *hmc_info,
	u32 idx);
	i40e_status i40e_remove_pd_page_new(struct i40e_hw *hw,
	struct i40e_hmc_info *hmc_info,
	u32 idx, bool is_pf);

	#endif /* _I40E_HMC_H_ */