237 lines
8.0 KiB
C
237 lines
8.0 KiB
C
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/*******************************************************************************
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*
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* Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
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* Copyright(c) 2013 - 2014 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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* Contact Information:
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* e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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******************************************************************************/
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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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#define I40E_FIRST_VF_FPM_ID 16
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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 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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(1 << I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT); \
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val3 = (sd_index) | (1u << 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) | (1u << 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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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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