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821 lines
24 KiB
821 lines
24 KiB
/******************************************************************************* |
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* |
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* Copyright (c) 2015-2016 Intel Corporation. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenFabrics.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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* |
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*******************************************************************************/ |
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#include "i40iw_osdep.h" |
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#include "i40iw_register.h" |
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#include "i40iw_status.h" |
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#include "i40iw_hmc.h" |
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#include "i40iw_d.h" |
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#include "i40iw_type.h" |
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#include "i40iw_p.h" |
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#include "i40iw_vf.h" |
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#include "i40iw_virtchnl.h" |
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/** |
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* i40iw_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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* @idx: 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 i40iw_hmc_rsrc_type. |
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*/ |
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static inline void i40iw_find_sd_index_limit(struct i40iw_hmc_info *hmc_info, |
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u32 type, |
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u32 idx, |
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u32 cnt, |
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u32 *sd_idx, |
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u32 *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 * idx; |
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fpm_limit = fpm_addr + hmc_info->hmc_obj[type].size * cnt; |
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*sd_idx = (u32)(fpm_addr / I40IW_HMC_DIRECT_BP_SIZE); |
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*sd_limit = (u32)((fpm_limit - 1) / I40IW_HMC_DIRECT_BP_SIZE); |
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*sd_limit += 1; |
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} |
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/** |
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* i40iw_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_idx: 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 i40iw_hmc_rsrc_type. |
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*/ |
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static inline void i40iw_find_pd_index_limit(struct i40iw_hmc_info *hmc_info, |
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u32 type, |
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u32 idx, |
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u32 cnt, |
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u32 *pd_idx, |
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u32 *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_idx) = (u32)(fpm_adr / I40IW_HMC_PAGED_BP_SIZE); |
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*(pd_limit) = (u32)((fpm_limit - 1) / I40IW_HMC_PAGED_BP_SIZE); |
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*(pd_limit) += 1; |
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} |
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/** |
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* i40iw_set_sd_entry - setup entry for sd programming |
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* @pa: physical addr |
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* @idx: sd index |
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* @type: paged or direct sd |
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* @entry: sd entry ptr |
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*/ |
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static inline void i40iw_set_sd_entry(u64 pa, |
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u32 idx, |
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enum i40iw_sd_entry_type type, |
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struct update_sd_entry *entry) |
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{ |
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entry->data = pa | (I40IW_HMC_MAX_BP_COUNT << I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) | |
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(((type == I40IW_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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entry->cmd = (idx | (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT) | (1 << 15)); |
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} |
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/** |
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* i40iw_clr_sd_entry - setup entry for sd clear |
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* @idx: sd index |
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* @type: paged or direct sd |
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* @entry: sd entry ptr |
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*/ |
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static inline void i40iw_clr_sd_entry(u32 idx, enum i40iw_sd_entry_type type, |
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struct update_sd_entry *entry) |
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{ |
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entry->data = (I40IW_HMC_MAX_BP_COUNT << |
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I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT) | |
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(((type == I40IW_SD_TYPE_PAGED) ? 0 : 1) << |
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I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT); |
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entry->cmd = (idx | (1 << I40E_PFHMC_SDCMD_PMSDWR_SHIFT) | (1 << 15)); |
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} |
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/** |
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* i40iw_hmc_sd_one - setup 1 sd entry for cqp |
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* @dev: pointer to the device structure |
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* @hmc_fn_id: hmc's function id |
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* @pa: physical addr |
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* @sd_idx: sd index |
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* @type: paged or direct sd |
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* @setsd: flag to set or clear sd |
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*/ |
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enum i40iw_status_code i40iw_hmc_sd_one(struct i40iw_sc_dev *dev, |
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u8 hmc_fn_id, |
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u64 pa, u32 sd_idx, |
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enum i40iw_sd_entry_type type, |
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bool setsd) |
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{ |
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struct i40iw_update_sds_info sdinfo; |
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sdinfo.cnt = 1; |
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sdinfo.hmc_fn_id = hmc_fn_id; |
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if (setsd) |
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i40iw_set_sd_entry(pa, sd_idx, type, sdinfo.entry); |
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else |
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i40iw_clr_sd_entry(sd_idx, type, sdinfo.entry); |
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return dev->cqp->process_cqp_sds(dev, &sdinfo); |
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} |
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/** |
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* i40iw_hmc_sd_grp - setup group od sd entries for cqp |
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* @dev: pointer to the device structure |
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* @hmc_info: pointer to the HMC configuration information struct |
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* @sd_index: sd index |
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* @sd_cnt: number of sd entries |
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* @setsd: flag to set or clear sd |
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*/ |
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static enum i40iw_status_code i40iw_hmc_sd_grp(struct i40iw_sc_dev *dev, |
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struct i40iw_hmc_info *hmc_info, |
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u32 sd_index, |
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u32 sd_cnt, |
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bool setsd) |
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{ |
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struct i40iw_hmc_sd_entry *sd_entry; |
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struct i40iw_update_sds_info sdinfo; |
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u64 pa; |
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u32 i; |
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enum i40iw_status_code ret_code = 0; |
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memset(&sdinfo, 0, sizeof(sdinfo)); |
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sdinfo.hmc_fn_id = hmc_info->hmc_fn_id; |
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for (i = sd_index; i < sd_index + sd_cnt; i++) { |
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sd_entry = &hmc_info->sd_table.sd_entry[i]; |
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if (!sd_entry || |
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(!sd_entry->valid && setsd) || |
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(sd_entry->valid && !setsd)) |
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continue; |
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if (setsd) { |
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pa = (sd_entry->entry_type == I40IW_SD_TYPE_PAGED) ? |
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sd_entry->u.pd_table.pd_page_addr.pa : |
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sd_entry->u.bp.addr.pa; |
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i40iw_set_sd_entry(pa, i, sd_entry->entry_type, |
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&sdinfo.entry[sdinfo.cnt]); |
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} else { |
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i40iw_clr_sd_entry(i, sd_entry->entry_type, |
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&sdinfo.entry[sdinfo.cnt]); |
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} |
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sdinfo.cnt++; |
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if (sdinfo.cnt == I40IW_MAX_SD_ENTRIES) { |
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ret_code = dev->cqp->process_cqp_sds(dev, &sdinfo); |
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if (ret_code) { |
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i40iw_debug(dev, I40IW_DEBUG_HMC, |
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"i40iw_hmc_sd_grp: sd_programming failed err=%d\n", |
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ret_code); |
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return ret_code; |
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} |
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sdinfo.cnt = 0; |
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} |
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} |
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if (sdinfo.cnt) |
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ret_code = dev->cqp->process_cqp_sds(dev, &sdinfo); |
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return ret_code; |
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} |
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/** |
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* i40iw_vfdev_from_fpm - return vf dev ptr for hmc function id |
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* @dev: pointer to the device structure |
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* @hmc_fn_id: hmc's function id |
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*/ |
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struct i40iw_vfdev *i40iw_vfdev_from_fpm(struct i40iw_sc_dev *dev, u8 hmc_fn_id) |
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{ |
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struct i40iw_vfdev *vf_dev = NULL; |
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u16 idx; |
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for (idx = 0; idx < I40IW_MAX_PE_ENABLED_VF_COUNT; idx++) { |
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if (dev->vf_dev[idx] && |
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((u8)dev->vf_dev[idx]->pmf_index == hmc_fn_id)) { |
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vf_dev = dev->vf_dev[idx]; |
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break; |
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} |
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} |
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return vf_dev; |
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} |
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/** |
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* i40iw_vf_hmcinfo_from_fpm - get ptr to hmc for func_id |
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* @dev: pointer to the device structure |
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* @hmc_fn_id: hmc's function id |
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*/ |
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struct i40iw_hmc_info *i40iw_vf_hmcinfo_from_fpm(struct i40iw_sc_dev *dev, |
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u8 hmc_fn_id) |
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{ |
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struct i40iw_hmc_info *hmc_info = NULL; |
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u16 idx; |
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for (idx = 0; idx < I40IW_MAX_PE_ENABLED_VF_COUNT; idx++) { |
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if (dev->vf_dev[idx] && |
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((u8)dev->vf_dev[idx]->pmf_index == hmc_fn_id)) { |
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hmc_info = &dev->vf_dev[idx]->hmc_info; |
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break; |
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} |
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} |
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return hmc_info; |
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} |
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/** |
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* i40iw_hmc_finish_add_sd_reg - program sd entries for objects |
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* @dev: pointer to the device structure |
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* @info: create obj info |
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*/ |
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static enum i40iw_status_code i40iw_hmc_finish_add_sd_reg(struct i40iw_sc_dev *dev, |
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struct i40iw_hmc_create_obj_info *info) |
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{ |
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if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) |
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return I40IW_ERR_INVALID_HMC_OBJ_INDEX; |
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|
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if ((info->start_idx + info->count) > |
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info->hmc_info->hmc_obj[info->rsrc_type].cnt) |
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return I40IW_ERR_INVALID_HMC_OBJ_COUNT; |
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if (!info->add_sd_cnt) |
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return 0; |
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return i40iw_hmc_sd_grp(dev, info->hmc_info, |
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info->hmc_info->sd_indexes[0], |
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info->add_sd_cnt, true); |
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} |
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/** |
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* i40iw_create_iw_hmc_obj - allocate backing store for hmc objects |
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* @dev: pointer to the device structure |
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* @info: pointer to i40iw_hmc_iw_create_obj_info struct |
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* |
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* This will allocate memory for PDs and backing pages and populate |
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* the sd and pd entries. |
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*/ |
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enum i40iw_status_code i40iw_sc_create_hmc_obj(struct i40iw_sc_dev *dev, |
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struct i40iw_hmc_create_obj_info *info) |
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{ |
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struct i40iw_hmc_sd_entry *sd_entry; |
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u32 sd_idx, sd_lmt; |
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u32 pd_idx = 0, pd_lmt = 0; |
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u32 pd_idx1 = 0, pd_lmt1 = 0; |
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u32 i, j; |
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bool pd_error = false; |
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enum i40iw_status_code ret_code = 0; |
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if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) |
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return I40IW_ERR_INVALID_HMC_OBJ_INDEX; |
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|
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if ((info->start_idx + info->count) > |
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info->hmc_info->hmc_obj[info->rsrc_type].cnt) { |
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i40iw_debug(dev, I40IW_DEBUG_HMC, |
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"%s: error type %u, start = %u, req cnt %u, cnt = %u\n", |
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__func__, info->rsrc_type, info->start_idx, info->count, |
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info->hmc_info->hmc_obj[info->rsrc_type].cnt); |
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return I40IW_ERR_INVALID_HMC_OBJ_COUNT; |
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} |
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if (!dev->is_pf) |
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return i40iw_vchnl_vf_add_hmc_objs(dev, info->rsrc_type, 0, info->count); |
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i40iw_find_sd_index_limit(info->hmc_info, info->rsrc_type, |
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info->start_idx, info->count, |
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&sd_idx, &sd_lmt); |
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if (sd_idx >= info->hmc_info->sd_table.sd_cnt || |
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sd_lmt > info->hmc_info->sd_table.sd_cnt) { |
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return I40IW_ERR_INVALID_SD_INDEX; |
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} |
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i40iw_find_pd_index_limit(info->hmc_info, info->rsrc_type, |
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info->start_idx, info->count, &pd_idx, &pd_lmt); |
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for (j = sd_idx; j < sd_lmt; j++) { |
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ret_code = i40iw_add_sd_table_entry(dev->hw, info->hmc_info, |
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j, |
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info->entry_type, |
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I40IW_HMC_DIRECT_BP_SIZE); |
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if (ret_code) |
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goto exit_sd_error; |
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sd_entry = &info->hmc_info->sd_table.sd_entry[j]; |
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|
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if ((sd_entry->entry_type == I40IW_SD_TYPE_PAGED) && |
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((dev->hmc_info == info->hmc_info) && |
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(info->rsrc_type != I40IW_HMC_IW_PBLE))) { |
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pd_idx1 = max(pd_idx, (j * I40IW_HMC_MAX_BP_COUNT)); |
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pd_lmt1 = min(pd_lmt, |
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(j + 1) * I40IW_HMC_MAX_BP_COUNT); |
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for (i = pd_idx1; i < pd_lmt1; i++) { |
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/* update the pd table entry */ |
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ret_code = i40iw_add_pd_table_entry(dev->hw, info->hmc_info, |
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i, NULL); |
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if (ret_code) { |
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pd_error = true; |
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break; |
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} |
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} |
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if (pd_error) { |
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while (i && (i > pd_idx1)) { |
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i40iw_remove_pd_bp(dev->hw, info->hmc_info, (i - 1), |
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info->is_pf); |
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i--; |
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} |
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} |
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} |
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if (sd_entry->valid) |
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continue; |
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|
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info->hmc_info->sd_indexes[info->add_sd_cnt] = (u16)j; |
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info->add_sd_cnt++; |
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sd_entry->valid = true; |
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} |
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return i40iw_hmc_finish_add_sd_reg(dev, info); |
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exit_sd_error: |
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while (j && (j > sd_idx)) { |
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sd_entry = &info->hmc_info->sd_table.sd_entry[j - 1]; |
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switch (sd_entry->entry_type) { |
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case I40IW_SD_TYPE_PAGED: |
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pd_idx1 = max(pd_idx, |
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(j - 1) * I40IW_HMC_MAX_BP_COUNT); |
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pd_lmt1 = min(pd_lmt, (j * I40IW_HMC_MAX_BP_COUNT)); |
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for (i = pd_idx1; i < pd_lmt1; i++) |
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i40iw_prep_remove_pd_page(info->hmc_info, i); |
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break; |
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case I40IW_SD_TYPE_DIRECT: |
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i40iw_prep_remove_pd_page(info->hmc_info, (j - 1)); |
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break; |
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default: |
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ret_code = I40IW_ERR_INVALID_SD_TYPE; |
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break; |
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} |
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j--; |
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} |
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|
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return ret_code; |
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} |
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|
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/** |
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* i40iw_finish_del_sd_reg - delete sd entries for objects |
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* @dev: pointer to the device structure |
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* @info: dele obj info |
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* @reset: true if called before reset |
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*/ |
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static enum i40iw_status_code i40iw_finish_del_sd_reg(struct i40iw_sc_dev *dev, |
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struct i40iw_hmc_del_obj_info *info, |
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bool reset) |
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{ |
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struct i40iw_hmc_sd_entry *sd_entry; |
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enum i40iw_status_code ret_code = 0; |
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u32 i, sd_idx; |
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struct i40iw_dma_mem *mem; |
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|
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if (dev->is_pf && !reset) |
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ret_code = i40iw_hmc_sd_grp(dev, info->hmc_info, |
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info->hmc_info->sd_indexes[0], |
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info->del_sd_cnt, false); |
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|
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if (ret_code) |
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i40iw_debug(dev, I40IW_DEBUG_HMC, "%s: error cqp sd sd_grp\n", __func__); |
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|
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for (i = 0; i < info->del_sd_cnt; i++) { |
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sd_idx = info->hmc_info->sd_indexes[i]; |
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sd_entry = &info->hmc_info->sd_table.sd_entry[sd_idx]; |
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if (!sd_entry) |
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continue; |
|
mem = (sd_entry->entry_type == I40IW_SD_TYPE_PAGED) ? |
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&sd_entry->u.pd_table.pd_page_addr : |
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&sd_entry->u.bp.addr; |
|
|
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if (!mem || !mem->va) |
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i40iw_debug(dev, I40IW_DEBUG_HMC, "%s: error cqp sd mem\n", __func__); |
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else |
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i40iw_free_dma_mem(dev->hw, mem); |
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} |
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return ret_code; |
|
} |
|
|
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/** |
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* i40iw_del_iw_hmc_obj - remove pe hmc objects |
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* @dev: pointer to the device structure |
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* @info: pointer to i40iw_hmc_del_obj_info struct |
|
* @reset: true if called before reset |
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* |
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* This will de-populate the SDs and PDs. It frees |
|
* the memory for PDS and backing storage. After this function is returned, |
|
* caller should deallocate memory allocated previously for |
|
* book-keeping information about PDs and backing storage. |
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*/ |
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enum i40iw_status_code i40iw_sc_del_hmc_obj(struct i40iw_sc_dev *dev, |
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struct i40iw_hmc_del_obj_info *info, |
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bool reset) |
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{ |
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struct i40iw_hmc_pd_table *pd_table; |
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u32 sd_idx, sd_lmt; |
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u32 pd_idx, pd_lmt, rel_pd_idx; |
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u32 i, j; |
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enum i40iw_status_code ret_code = 0; |
|
|
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if (info->start_idx >= info->hmc_info->hmc_obj[info->rsrc_type].cnt) { |
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i40iw_debug(dev, I40IW_DEBUG_HMC, |
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"%s: error start_idx[%04d] >= [type %04d].cnt[%04d]\n", |
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__func__, info->start_idx, info->rsrc_type, |
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info->hmc_info->hmc_obj[info->rsrc_type].cnt); |
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return I40IW_ERR_INVALID_HMC_OBJ_INDEX; |
|
} |
|
|
|
if ((info->start_idx + info->count) > |
|
info->hmc_info->hmc_obj[info->rsrc_type].cnt) { |
|
i40iw_debug(dev, I40IW_DEBUG_HMC, |
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"%s: error start_idx[%04d] + count %04d >= [type %04d].cnt[%04d]\n", |
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__func__, info->start_idx, info->count, |
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info->rsrc_type, |
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info->hmc_info->hmc_obj[info->rsrc_type].cnt); |
|
return I40IW_ERR_INVALID_HMC_OBJ_COUNT; |
|
} |
|
if (!dev->is_pf) { |
|
ret_code = i40iw_vchnl_vf_del_hmc_obj(dev, info->rsrc_type, 0, |
|
info->count); |
|
if (info->rsrc_type != I40IW_HMC_IW_PBLE) |
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return ret_code; |
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} |
|
|
|
i40iw_find_pd_index_limit(info->hmc_info, info->rsrc_type, |
|
info->start_idx, info->count, &pd_idx, &pd_lmt); |
|
|
|
for (j = pd_idx; j < pd_lmt; j++) { |
|
sd_idx = j / I40IW_HMC_PD_CNT_IN_SD; |
|
|
|
if (info->hmc_info->sd_table.sd_entry[sd_idx].entry_type != |
|
I40IW_SD_TYPE_PAGED) |
|
continue; |
|
|
|
rel_pd_idx = j % I40IW_HMC_PD_CNT_IN_SD; |
|
pd_table = &info->hmc_info->sd_table.sd_entry[sd_idx].u.pd_table; |
|
if (pd_table->pd_entry[rel_pd_idx].valid) { |
|
ret_code = i40iw_remove_pd_bp(dev->hw, info->hmc_info, j, |
|
info->is_pf); |
|
if (ret_code) { |
|
i40iw_debug(dev, I40IW_DEBUG_HMC, "%s: error\n", __func__); |
|
return ret_code; |
|
} |
|
} |
|
} |
|
|
|
i40iw_find_sd_index_limit(info->hmc_info, info->rsrc_type, |
|
info->start_idx, info->count, &sd_idx, &sd_lmt); |
|
if (sd_idx >= info->hmc_info->sd_table.sd_cnt || |
|
sd_lmt > info->hmc_info->sd_table.sd_cnt) { |
|
i40iw_debug(dev, I40IW_DEBUG_HMC, "%s: error invalid sd_idx\n", __func__); |
|
return I40IW_ERR_INVALID_SD_INDEX; |
|
} |
|
|
|
for (i = sd_idx; i < sd_lmt; i++) { |
|
if (!info->hmc_info->sd_table.sd_entry[i].valid) |
|
continue; |
|
switch (info->hmc_info->sd_table.sd_entry[i].entry_type) { |
|
case I40IW_SD_TYPE_DIRECT: |
|
ret_code = i40iw_prep_remove_sd_bp(info->hmc_info, i); |
|
if (!ret_code) { |
|
info->hmc_info->sd_indexes[info->del_sd_cnt] = (u16)i; |
|
info->del_sd_cnt++; |
|
} |
|
break; |
|
case I40IW_SD_TYPE_PAGED: |
|
ret_code = i40iw_prep_remove_pd_page(info->hmc_info, i); |
|
if (!ret_code) { |
|
info->hmc_info->sd_indexes[info->del_sd_cnt] = (u16)i; |
|
info->del_sd_cnt++; |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
return i40iw_finish_del_sd_reg(dev, info, reset); |
|
} |
|
|
|
/** |
|
* i40iw_add_sd_table_entry - Adds a segment descriptor to the table |
|
* @hw: pointer to our hw struct |
|
* @hmc_info: pointer to the HMC configuration information struct |
|
* @sd_index: segment descriptor index to manipulate |
|
* @type: what type of segment descriptor we're manipulating |
|
* @direct_mode_sz: size to alloc in direct mode |
|
*/ |
|
enum i40iw_status_code i40iw_add_sd_table_entry(struct i40iw_hw *hw, |
|
struct i40iw_hmc_info *hmc_info, |
|
u32 sd_index, |
|
enum i40iw_sd_entry_type type, |
|
u64 direct_mode_sz) |
|
{ |
|
enum i40iw_status_code ret_code = 0; |
|
struct i40iw_hmc_sd_entry *sd_entry; |
|
bool dma_mem_alloc_done = false; |
|
struct i40iw_dma_mem mem; |
|
u64 alloc_len; |
|
|
|
sd_entry = &hmc_info->sd_table.sd_entry[sd_index]; |
|
if (!sd_entry->valid) { |
|
if (type == I40IW_SD_TYPE_PAGED) |
|
alloc_len = I40IW_HMC_PAGED_BP_SIZE; |
|
else |
|
alloc_len = direct_mode_sz; |
|
|
|
/* allocate a 4K pd page or 2M backing page */ |
|
ret_code = i40iw_allocate_dma_mem(hw, &mem, alloc_len, |
|
I40IW_HMC_PD_BP_BUF_ALIGNMENT); |
|
if (ret_code) |
|
goto exit; |
|
dma_mem_alloc_done = true; |
|
if (type == I40IW_SD_TYPE_PAGED) { |
|
ret_code = i40iw_allocate_virt_mem(hw, |
|
&sd_entry->u.pd_table.pd_entry_virt_mem, |
|
sizeof(struct i40iw_hmc_pd_entry) * 512); |
|
if (ret_code) |
|
goto exit; |
|
sd_entry->u.pd_table.pd_entry = (struct i40iw_hmc_pd_entry *) |
|
sd_entry->u.pd_table.pd_entry_virt_mem.va; |
|
|
|
memcpy(&sd_entry->u.pd_table.pd_page_addr, &mem, sizeof(struct i40iw_dma_mem)); |
|
} else { |
|
memcpy(&sd_entry->u.bp.addr, &mem, sizeof(struct i40iw_dma_mem)); |
|
sd_entry->u.bp.sd_pd_index = sd_index; |
|
} |
|
|
|
hmc_info->sd_table.sd_entry[sd_index].entry_type = type; |
|
|
|
I40IW_INC_SD_REFCNT(&hmc_info->sd_table); |
|
} |
|
if (sd_entry->entry_type == I40IW_SD_TYPE_DIRECT) |
|
I40IW_INC_BP_REFCNT(&sd_entry->u.bp); |
|
exit: |
|
if (ret_code) |
|
if (dma_mem_alloc_done) |
|
i40iw_free_dma_mem(hw, &mem); |
|
|
|
return ret_code; |
|
} |
|
|
|
/** |
|
* i40iw_add_pd_table_entry - Adds page descriptor to the specified table |
|
* @hw: pointer to our HW structure |
|
* @hmc_info: pointer to the HMC configuration information structure |
|
* @pd_index: which page descriptor index to manipulate |
|
* @rsrc_pg: if not NULL, use preallocated page instead of allocating new one. |
|
* |
|
* This function: |
|
* 1. Initializes the pd entry |
|
* 2. Adds pd_entry in the pd_table |
|
* 3. Mark the entry valid in i40iw_hmc_pd_entry structure |
|
* 4. Initializes the pd_entry's ref count to 1 |
|
* assumptions: |
|
* 1. The memory for pd should be pinned down, physically contiguous and |
|
* aligned on 4K boundary and zeroed memory. |
|
* 2. It should be 4K in size. |
|
*/ |
|
enum i40iw_status_code i40iw_add_pd_table_entry(struct i40iw_hw *hw, |
|
struct i40iw_hmc_info *hmc_info, |
|
u32 pd_index, |
|
struct i40iw_dma_mem *rsrc_pg) |
|
{ |
|
enum i40iw_status_code ret_code = 0; |
|
struct i40iw_hmc_pd_table *pd_table; |
|
struct i40iw_hmc_pd_entry *pd_entry; |
|
struct i40iw_dma_mem mem; |
|
struct i40iw_dma_mem *page = &mem; |
|
u32 sd_idx, rel_pd_idx; |
|
u64 *pd_addr; |
|
u64 page_desc; |
|
|
|
if (pd_index / I40IW_HMC_PD_CNT_IN_SD >= hmc_info->sd_table.sd_cnt) |
|
return I40IW_ERR_INVALID_PAGE_DESC_INDEX; |
|
|
|
sd_idx = (pd_index / I40IW_HMC_PD_CNT_IN_SD); |
|
if (hmc_info->sd_table.sd_entry[sd_idx].entry_type != I40IW_SD_TYPE_PAGED) |
|
return 0; |
|
|
|
rel_pd_idx = (pd_index % I40IW_HMC_PD_CNT_IN_SD); |
|
pd_table = &hmc_info->sd_table.sd_entry[sd_idx].u.pd_table; |
|
pd_entry = &pd_table->pd_entry[rel_pd_idx]; |
|
if (!pd_entry->valid) { |
|
if (rsrc_pg) { |
|
pd_entry->rsrc_pg = true; |
|
page = rsrc_pg; |
|
} else { |
|
ret_code = i40iw_allocate_dma_mem(hw, page, |
|
I40IW_HMC_PAGED_BP_SIZE, |
|
I40IW_HMC_PD_BP_BUF_ALIGNMENT); |
|
if (ret_code) |
|
return ret_code; |
|
pd_entry->rsrc_pg = false; |
|
} |
|
|
|
memcpy(&pd_entry->bp.addr, page, sizeof(struct i40iw_dma_mem)); |
|
pd_entry->bp.sd_pd_index = pd_index; |
|
pd_entry->bp.entry_type = I40IW_SD_TYPE_PAGED; |
|
page_desc = page->pa | 0x1; |
|
|
|
pd_addr = (u64 *)pd_table->pd_page_addr.va; |
|
pd_addr += rel_pd_idx; |
|
|
|
memcpy(pd_addr, &page_desc, sizeof(*pd_addr)); |
|
|
|
pd_entry->sd_index = sd_idx; |
|
pd_entry->valid = true; |
|
I40IW_INC_PD_REFCNT(pd_table); |
|
if (hmc_info->hmc_fn_id < I40IW_FIRST_VF_FPM_ID) |
|
I40IW_INVALIDATE_PF_HMC_PD(hw, sd_idx, rel_pd_idx); |
|
else if (hw->hmc.hmc_fn_id != hmc_info->hmc_fn_id) |
|
I40IW_INVALIDATE_VF_HMC_PD(hw, sd_idx, rel_pd_idx, |
|
hmc_info->hmc_fn_id); |
|
} |
|
I40IW_INC_BP_REFCNT(&pd_entry->bp); |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* i40iw_remove_pd_bp - remove a backing page from a page descriptor |
|
* @hw: pointer to our HW structure |
|
* @hmc_info: pointer to the HMC configuration information structure |
|
* @idx: the page index |
|
* @is_pf: distinguishes a VF from a PF |
|
* |
|
* This function: |
|
* 1. Marks the entry in pd table (for paged address mode) or in sd table |
|
* (for direct address mode) invalid. |
|
* 2. Write to register PMPDINV to invalidate the backing page in FV cache |
|
* 3. Decrement the ref count for the pd _entry |
|
* assumptions: |
|
* 1. Caller can deallocate the memory used by backing storage after this |
|
* function returns. |
|
*/ |
|
enum i40iw_status_code i40iw_remove_pd_bp(struct i40iw_hw *hw, |
|
struct i40iw_hmc_info *hmc_info, |
|
u32 idx, |
|
bool is_pf) |
|
{ |
|
struct i40iw_hmc_pd_entry *pd_entry; |
|
struct i40iw_hmc_pd_table *pd_table; |
|
struct i40iw_hmc_sd_entry *sd_entry; |
|
u32 sd_idx, rel_pd_idx; |
|
struct i40iw_dma_mem *mem; |
|
u64 *pd_addr; |
|
|
|
sd_idx = idx / I40IW_HMC_PD_CNT_IN_SD; |
|
rel_pd_idx = idx % I40IW_HMC_PD_CNT_IN_SD; |
|
if (sd_idx >= hmc_info->sd_table.sd_cnt) |
|
return I40IW_ERR_INVALID_PAGE_DESC_INDEX; |
|
|
|
sd_entry = &hmc_info->sd_table.sd_entry[sd_idx]; |
|
if (sd_entry->entry_type != I40IW_SD_TYPE_PAGED) |
|
return I40IW_ERR_INVALID_SD_TYPE; |
|
|
|
pd_table = &hmc_info->sd_table.sd_entry[sd_idx].u.pd_table; |
|
pd_entry = &pd_table->pd_entry[rel_pd_idx]; |
|
I40IW_DEC_BP_REFCNT(&pd_entry->bp); |
|
if (pd_entry->bp.ref_cnt) |
|
return 0; |
|
|
|
pd_entry->valid = false; |
|
I40IW_DEC_PD_REFCNT(pd_table); |
|
pd_addr = (u64 *)pd_table->pd_page_addr.va; |
|
pd_addr += rel_pd_idx; |
|
memset(pd_addr, 0, sizeof(u64)); |
|
if (is_pf) |
|
I40IW_INVALIDATE_PF_HMC_PD(hw, sd_idx, idx); |
|
else |
|
I40IW_INVALIDATE_VF_HMC_PD(hw, sd_idx, idx, |
|
hmc_info->hmc_fn_id); |
|
|
|
if (!pd_entry->rsrc_pg) { |
|
mem = &pd_entry->bp.addr; |
|
if (!mem || !mem->va) |
|
return I40IW_ERR_PARAM; |
|
i40iw_free_dma_mem(hw, mem); |
|
} |
|
if (!pd_table->ref_cnt) |
|
i40iw_free_virt_mem(hw, &pd_table->pd_entry_virt_mem); |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* i40iw_prep_remove_sd_bp - Prepares to remove a backing page from a sd entry |
|
* @hmc_info: pointer to the HMC configuration information structure |
|
* @idx: the page index |
|
*/ |
|
enum i40iw_status_code i40iw_prep_remove_sd_bp(struct i40iw_hmc_info *hmc_info, u32 idx) |
|
{ |
|
struct i40iw_hmc_sd_entry *sd_entry; |
|
|
|
sd_entry = &hmc_info->sd_table.sd_entry[idx]; |
|
I40IW_DEC_BP_REFCNT(&sd_entry->u.bp); |
|
if (sd_entry->u.bp.ref_cnt) |
|
return I40IW_ERR_NOT_READY; |
|
|
|
I40IW_DEC_SD_REFCNT(&hmc_info->sd_table); |
|
sd_entry->valid = false; |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* i40iw_prep_remove_pd_page - Prepares to remove a PD page from sd entry. |
|
* @hmc_info: pointer to the HMC configuration information structure |
|
* @idx: segment descriptor index to find the relevant page descriptor |
|
*/ |
|
enum i40iw_status_code i40iw_prep_remove_pd_page(struct i40iw_hmc_info *hmc_info, |
|
u32 idx) |
|
{ |
|
struct i40iw_hmc_sd_entry *sd_entry; |
|
|
|
sd_entry = &hmc_info->sd_table.sd_entry[idx]; |
|
|
|
if (sd_entry->u.pd_table.ref_cnt) |
|
return I40IW_ERR_NOT_READY; |
|
|
|
sd_entry->valid = false; |
|
I40IW_DEC_SD_REFCNT(&hmc_info->sd_table); |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* i40iw_pf_init_vfhmc - |
|
* @vf_cnt_array: array of cnt values of iwarp hmc objects |
|
* @vf_hmc_fn_id: hmc function id ofr vf driver |
|
* @dev: pointer to i40iw_dev struct |
|
* |
|
* Called by pf driver to initialize hmc_info for vf driver instance. |
|
*/ |
|
enum i40iw_status_code i40iw_pf_init_vfhmc(struct i40iw_sc_dev *dev, |
|
u8 vf_hmc_fn_id, |
|
u32 *vf_cnt_array) |
|
{ |
|
struct i40iw_hmc_info *hmc_info; |
|
enum i40iw_status_code ret_code = 0; |
|
u32 i; |
|
|
|
if ((vf_hmc_fn_id < I40IW_FIRST_VF_FPM_ID) || |
|
(vf_hmc_fn_id >= I40IW_FIRST_VF_FPM_ID + |
|
I40IW_MAX_PE_ENABLED_VF_COUNT)) { |
|
i40iw_debug(dev, I40IW_DEBUG_HMC, "%s: invalid vf_hmc_fn_id 0x%x\n", |
|
__func__, vf_hmc_fn_id); |
|
return I40IW_ERR_INVALID_HMCFN_ID; |
|
} |
|
|
|
ret_code = i40iw_sc_init_iw_hmc(dev, vf_hmc_fn_id); |
|
if (ret_code) |
|
return ret_code; |
|
|
|
hmc_info = i40iw_vf_hmcinfo_from_fpm(dev, vf_hmc_fn_id); |
|
|
|
for (i = I40IW_HMC_IW_QP; i < I40IW_HMC_IW_MAX; i++) |
|
if (vf_cnt_array) |
|
hmc_info->hmc_obj[i].cnt = |
|
vf_cnt_array[i - I40IW_HMC_IW_QP]; |
|
else |
|
hmc_info->hmc_obj[i].cnt = hmc_info->hmc_obj[i].max_cnt; |
|
|
|
return 0; |
|
}
|
|
|