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214 lines
7.0 KiB
214 lines
7.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright(c) 2013 - 2018 Intel Corporation. */ |
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#ifndef _I40E_HMC_H_ |
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#define _I40E_HMC_H_ |
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#define I40E_HMC_MAX_BP_COUNT 512 |
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/* forward-declare the HW struct for the compiler */ |
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struct i40e_hw; |
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#define I40E_HMC_INFO_SIGNATURE 0x484D5347 /* HMSG */ |
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#define I40E_HMC_PD_CNT_IN_SD 512 |
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#define I40E_HMC_DIRECT_BP_SIZE 0x200000 /* 2M */ |
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#define I40E_HMC_PAGED_BP_SIZE 4096 |
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#define I40E_HMC_PD_BP_BUF_ALIGNMENT 4096 |
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struct i40e_hmc_obj_info { |
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u64 base; /* base addr in FPM */ |
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u32 max_cnt; /* max count available for this hmc func */ |
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u32 cnt; /* count of objects driver actually wants to create */ |
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u64 size; /* size in bytes of one object */ |
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}; |
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enum i40e_sd_entry_type { |
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I40E_SD_TYPE_INVALID = 0, |
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I40E_SD_TYPE_PAGED = 1, |
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I40E_SD_TYPE_DIRECT = 2 |
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}; |
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struct i40e_hmc_bp { |
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enum i40e_sd_entry_type entry_type; |
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struct i40e_dma_mem addr; /* populate to be used by hw */ |
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u32 sd_pd_index; |
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u32 ref_cnt; |
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}; |
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struct i40e_hmc_pd_entry { |
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struct i40e_hmc_bp bp; |
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u32 sd_index; |
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bool rsrc_pg; |
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bool valid; |
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}; |
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struct i40e_hmc_pd_table { |
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struct i40e_dma_mem pd_page_addr; /* populate to be used by hw */ |
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struct i40e_hmc_pd_entry *pd_entry; /* [512] for sw book keeping */ |
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struct i40e_virt_mem pd_entry_virt_mem; /* virt mem for pd_entry */ |
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u32 ref_cnt; |
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u32 sd_index; |
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}; |
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struct i40e_hmc_sd_entry { |
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enum i40e_sd_entry_type entry_type; |
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bool valid; |
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union { |
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struct i40e_hmc_pd_table pd_table; |
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struct i40e_hmc_bp bp; |
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} u; |
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}; |
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struct i40e_hmc_sd_table { |
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struct i40e_virt_mem addr; /* used to track sd_entry allocations */ |
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u32 sd_cnt; |
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u32 ref_cnt; |
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struct i40e_hmc_sd_entry *sd_entry; /* (sd_cnt*512) entries max */ |
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}; |
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struct i40e_hmc_info { |
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u32 signature; |
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/* equals to pci func num for PF and dynamically allocated for VFs */ |
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u8 hmc_fn_id; |
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u16 first_sd_index; /* index of the first available SD */ |
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/* hmc objects */ |
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struct i40e_hmc_obj_info *hmc_obj; |
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struct i40e_virt_mem hmc_obj_virt_mem; |
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struct i40e_hmc_sd_table sd_table; |
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}; |
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#define I40E_INC_SD_REFCNT(sd_table) ((sd_table)->ref_cnt++) |
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#define I40E_INC_PD_REFCNT(pd_table) ((pd_table)->ref_cnt++) |
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#define I40E_INC_BP_REFCNT(bp) ((bp)->ref_cnt++) |
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#define I40E_DEC_SD_REFCNT(sd_table) ((sd_table)->ref_cnt--) |
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#define I40E_DEC_PD_REFCNT(pd_table) ((pd_table)->ref_cnt--) |
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#define I40E_DEC_BP_REFCNT(bp) ((bp)->ref_cnt--) |
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/** |
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* I40E_SET_PF_SD_ENTRY - marks the sd entry as valid in the hardware |
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* @hw: pointer to our hw struct |
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* @pa: pointer to physical address |
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* @sd_index: segment descriptor index |
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* @type: if sd entry is direct or paged |
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**/ |
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#define I40E_SET_PF_SD_ENTRY(hw, pa, sd_index, type) \ |
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{ \ |
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u32 val1, val2, val3; \ |
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val1 = (u32)(upper_32_bits(pa)); \ |
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val2 = (u32)(pa) | (I40E_HMC_MAX_BP_COUNT << \ |
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I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) | \ |
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((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) << \ |
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I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT) | \ |
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BIT(I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT); \ |
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val3 = (sd_index) | BIT_ULL(I40E_PFHMC_SDCMD_PMSDWR_SHIFT); \ |
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wr32((hw), I40E_PFHMC_SDDATAHIGH, val1); \ |
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wr32((hw), I40E_PFHMC_SDDATALOW, val2); \ |
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wr32((hw), I40E_PFHMC_SDCMD, val3); \ |
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} |
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/** |
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* I40E_CLEAR_PF_SD_ENTRY - marks the sd entry as invalid in the hardware |
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* @hw: pointer to our hw struct |
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* @sd_index: segment descriptor index |
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* @type: if sd entry is direct or paged |
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**/ |
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#define I40E_CLEAR_PF_SD_ENTRY(hw, sd_index, type) \ |
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{ \ |
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u32 val2, val3; \ |
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val2 = (I40E_HMC_MAX_BP_COUNT << \ |
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I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) | \ |
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((((type) == I40E_SD_TYPE_PAGED) ? 0 : 1) << \ |
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I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT); \ |
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val3 = (sd_index) | BIT_ULL(I40E_PFHMC_SDCMD_PMSDWR_SHIFT); \ |
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wr32((hw), I40E_PFHMC_SDDATAHIGH, 0); \ |
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wr32((hw), I40E_PFHMC_SDDATALOW, val2); \ |
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wr32((hw), I40E_PFHMC_SDCMD, val3); \ |
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} |
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/** |
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* I40E_INVALIDATE_PF_HMC_PD - Invalidates the pd cache in the hardware |
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* @hw: pointer to our hw struct |
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* @sd_idx: segment descriptor index |
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* @pd_idx: page descriptor index |
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**/ |
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#define I40E_INVALIDATE_PF_HMC_PD(hw, sd_idx, pd_idx) \ |
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wr32((hw), I40E_PFHMC_PDINV, \ |
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(((sd_idx) << I40E_PFHMC_PDINV_PMSDIDX_SHIFT) | \ |
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((pd_idx) << I40E_PFHMC_PDINV_PMPDIDX_SHIFT))) |
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/** |
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* I40E_FIND_SD_INDEX_LIMIT - finds segment descriptor index limit |
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* @hmc_info: pointer to the HMC configuration information structure |
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* @type: type of HMC resources we're searching |
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* @index: starting index for the object |
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* @cnt: number of objects we're trying to create |
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* @sd_idx: pointer to return index of the segment descriptor in question |
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* @sd_limit: pointer to return the maximum number of segment descriptors |
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* |
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* This function calculates the segment descriptor index and index limit |
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* for the resource defined by i40e_hmc_rsrc_type. |
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**/ |
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#define I40E_FIND_SD_INDEX_LIMIT(hmc_info, type, index, cnt, sd_idx, sd_limit)\ |
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{ \ |
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u64 fpm_addr, fpm_limit; \ |
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fpm_addr = (hmc_info)->hmc_obj[(type)].base + \ |
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(hmc_info)->hmc_obj[(type)].size * (index); \ |
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fpm_limit = fpm_addr + (hmc_info)->hmc_obj[(type)].size * (cnt);\ |
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*(sd_idx) = (u32)(fpm_addr / I40E_HMC_DIRECT_BP_SIZE); \ |
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*(sd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_DIRECT_BP_SIZE); \ |
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/* add one more to the limit to correct our range */ \ |
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*(sd_limit) += 1; \ |
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} |
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/** |
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* I40E_FIND_PD_INDEX_LIMIT - finds page descriptor index limit |
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* @hmc_info: pointer to the HMC configuration information struct |
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* @type: HMC resource type we're examining |
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* @idx: starting index for the object |
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* @cnt: number of objects we're trying to create |
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* @pd_index: pointer to return page descriptor index |
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* @pd_limit: pointer to return page descriptor index limit |
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* |
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* Calculates the page descriptor index and index limit for the resource |
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* defined by i40e_hmc_rsrc_type. |
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**/ |
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#define I40E_FIND_PD_INDEX_LIMIT(hmc_info, type, idx, cnt, pd_index, pd_limit)\ |
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{ \ |
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u64 fpm_adr, fpm_limit; \ |
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fpm_adr = (hmc_info)->hmc_obj[(type)].base + \ |
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(hmc_info)->hmc_obj[(type)].size * (idx); \ |
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fpm_limit = fpm_adr + (hmc_info)->hmc_obj[(type)].size * (cnt); \ |
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*(pd_index) = (u32)(fpm_adr / I40E_HMC_PAGED_BP_SIZE); \ |
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*(pd_limit) = (u32)((fpm_limit - 1) / I40E_HMC_PAGED_BP_SIZE); \ |
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/* add one more to the limit to correct our range */ \ |
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*(pd_limit) += 1; \ |
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} |
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i40e_status i40e_add_sd_table_entry(struct i40e_hw *hw, |
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struct i40e_hmc_info *hmc_info, |
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u32 sd_index, |
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enum i40e_sd_entry_type type, |
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u64 direct_mode_sz); |
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i40e_status i40e_add_pd_table_entry(struct i40e_hw *hw, |
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struct i40e_hmc_info *hmc_info, |
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u32 pd_index, |
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struct i40e_dma_mem *rsrc_pg); |
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i40e_status i40e_remove_pd_bp(struct i40e_hw *hw, |
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struct i40e_hmc_info *hmc_info, |
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u32 idx); |
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i40e_status i40e_prep_remove_sd_bp(struct i40e_hmc_info *hmc_info, |
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u32 idx); |
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i40e_status i40e_remove_sd_bp_new(struct i40e_hw *hw, |
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struct i40e_hmc_info *hmc_info, |
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u32 idx, bool is_pf); |
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i40e_status i40e_prep_remove_pd_page(struct i40e_hmc_info *hmc_info, |
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u32 idx); |
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i40e_status i40e_remove_pd_page_new(struct i40e_hw *hw, |
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struct i40e_hmc_info *hmc_info, |
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u32 idx, bool is_pf); |
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#endif /* _I40E_HMC_H_ */
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