Quelle i40e_hmc.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2013 - 2018 Intel Corporation. */
#ifndef _I40E_HMC_H_
#define _I40E_HMC_H_
#include "i40e_alloc.h"
#include "i40e_io.h"
#include "i40e_register.h"
#define I40E_HMC_MAX_BP_COUNT 512
/* forward-declare the HW struct for the compiler */
struct i40e_hw;
#define I40E_HMC_INFO_SIGNATURE 0 x484D5347 /* HMSG */
#define I40E_HMC_PD_CNT_IN_SD 512
#define I40E_HMC_DIRECT_BP_SIZE 0 x200000 /* 2M */
#define I40E_HMC_PAGED_BP_SIZE 4096
#define I40E_HMC_PD_BP_BUF_ALIGNMENT 4096
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 rsrc_pg;
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) | \
BIT(I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT); \
val3 = (sd_index) | BIT_ULL(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) | BIT_ULL(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)))
/**
* 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 ; \
}
int 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);
int i40e_add_pd_table_entry(struct i40e_hw *hw,
struct i40e_hmc_info *hmc_info,
u32 pd_index,
struct i40e_dma_mem *rsrc_pg);
int i40e_remove_pd_bp(struct i40e_hw *hw,
struct i40e_hmc_info *hmc_info,
u32 idx);
int i40e_prep_remove_sd_bp(struct i40e_hmc_info *hmc_info,
u32 idx);
int i40e_remove_sd_bp_new(struct i40e_hw *hw,
struct i40e_hmc_info *hmc_info,
u32 idx, bool is_pf);
int i40e_prep_remove_pd_page(struct i40e_hmc_info *hmc_info,
u32 idx);
int i40e_remove_pd_page_new(struct i40e_hw *hw,
struct i40e_hmc_info *hmc_info,
u32 idx, bool is_pf);
#endif /* _I40E_HMC_H_ */
Messung V0.5 in Prozent C=89 H=100 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-04)
¤
*© Formatika GbR, Deutschland
2026-10-10
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