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path: root/drivers/infiniband/hw/i40iw/i40iw_pble.c
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Diffstat (limited to 'drivers/infiniband/hw/i40iw/i40iw_pble.c')
-rw-r--r--drivers/infiniband/hw/i40iw/i40iw_pble.c611
1 files changed, 0 insertions, 611 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_pble.c b/drivers/infiniband/hw/i40iw/i40iw_pble.c
deleted file mode 100644
index 146a4148219b..000000000000
--- a/drivers/infiniband/hw/i40iw/i40iw_pble.c
+++ /dev/null
@@ -1,611 +0,0 @@
-/*******************************************************************************
-*
-* Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
-*
-* This software is available to you under a choice of one of two
-* licenses. You may choose to be licensed under the terms of the GNU
-* General Public License (GPL) Version 2, available from the file
-* COPYING in the main directory of this source tree, or the
-* OpenFabrics.org BSD license below:
-*
-* Redistribution and use in source and binary forms, with or
-* without modification, are permitted provided that the following
-* conditions are met:
-*
-* - Redistributions of source code must retain the above
-* copyright notice, this list of conditions and the following
-* disclaimer.
-*
-* - Redistributions in binary form must reproduce the above
-* copyright notice, this list of conditions and the following
-* disclaimer in the documentation and/or other materials
-* provided with the distribution.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-* SOFTWARE.
-*
-*******************************************************************************/
-
-#include "i40iw_status.h"
-#include "i40iw_osdep.h"
-#include "i40iw_register.h"
-#include "i40iw_hmc.h"
-
-#include "i40iw_d.h"
-#include "i40iw_type.h"
-#include "i40iw_p.h"
-
-#include <linux/pci.h>
-#include <linux/genalloc.h>
-#include <linux/vmalloc.h>
-#include "i40iw_pble.h"
-#include "i40iw.h"
-
-struct i40iw_device;
-static enum i40iw_status_code add_pble_pool(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc);
-static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk *chunk);
-
-/**
- * i40iw_destroy_pble_pool - destroy pool during module unload
- * @dev: i40iw_sc_dev struct
- * @pble_rsrc: pble resources
- */
-void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct i40iw_hmc_pble_rsrc *pble_rsrc)
-{
- struct list_head *clist;
- struct list_head *tlist;
- struct i40iw_chunk *chunk;
- struct i40iw_pble_pool *pinfo = &pble_rsrc->pinfo;
-
- if (pinfo->pool) {
- list_for_each_safe(clist, tlist, &pinfo->clist) {
- chunk = list_entry(clist, struct i40iw_chunk, list);
- if (chunk->type == I40IW_VMALLOC)
- i40iw_free_vmalloc_mem(dev->hw, chunk);
- kfree(chunk);
- }
- gen_pool_destroy(pinfo->pool);
- }
-}
-
-/**
- * i40iw_hmc_init_pble - Initialize pble resources during module load
- * @dev: i40iw_sc_dev struct
- * @pble_rsrc: pble resources
- */
-enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc)
-{
- struct i40iw_hmc_info *hmc_info;
- u32 fpm_idx = 0;
-
- hmc_info = dev->hmc_info;
- pble_rsrc->fpm_base_addr = hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].base;
- /* Now start the pble' on 4k boundary */
- if (pble_rsrc->fpm_base_addr & 0xfff)
- fpm_idx = (PAGE_SIZE - (pble_rsrc->fpm_base_addr & 0xfff)) >> 3;
-
- pble_rsrc->unallocated_pble =
- hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].cnt - fpm_idx;
- pble_rsrc->next_fpm_addr = pble_rsrc->fpm_base_addr + (fpm_idx << 3);
-
- pble_rsrc->pinfo.pool_shift = POOL_SHIFT;
- pble_rsrc->pinfo.pool = gen_pool_create(pble_rsrc->pinfo.pool_shift, -1);
- INIT_LIST_HEAD(&pble_rsrc->pinfo.clist);
- if (!pble_rsrc->pinfo.pool)
- goto error;
-
- if (add_pble_pool(dev, pble_rsrc))
- goto error;
-
- return 0;
-
- error:i40iw_destroy_pble_pool(dev, pble_rsrc);
- return I40IW_ERR_NO_MEMORY;
-}
-
-/**
- * get_sd_pd_idx - Returns sd index, pd index and rel_pd_idx from fpm address
- * @pble_rsrc: structure containing fpm address
- * @idx: where to return indexes
- */
-static inline void get_sd_pd_idx(struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct sd_pd_idx *idx)
-{
- idx->sd_idx = (u32)(pble_rsrc->next_fpm_addr) / I40IW_HMC_DIRECT_BP_SIZE;
- idx->pd_idx = (u32)(pble_rsrc->next_fpm_addr) / I40IW_HMC_PAGED_BP_SIZE;
- idx->rel_pd_idx = (idx->pd_idx % I40IW_HMC_PD_CNT_IN_SD);
-}
-
-/**
- * add_sd_direct - add sd direct for pble
- * @dev: hardware control device structure
- * @pble_rsrc: pble resource ptr
- * @info: page info for sd
- */
-static enum i40iw_status_code add_sd_direct(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_add_page_info *info)
-{
- enum i40iw_status_code ret_code = 0;
- struct sd_pd_idx *idx = &info->idx;
- struct i40iw_chunk *chunk = info->chunk;
- struct i40iw_hmc_info *hmc_info = info->hmc_info;
- struct i40iw_hmc_sd_entry *sd_entry = info->sd_entry;
- u32 offset = 0;
-
- if (!sd_entry->valid) {
- if (dev->is_pf) {
- ret_code = i40iw_add_sd_table_entry(dev->hw, hmc_info,
- info->idx.sd_idx,
- I40IW_SD_TYPE_DIRECT,
- I40IW_HMC_DIRECT_BP_SIZE);
- if (ret_code)
- return ret_code;
- chunk->type = I40IW_DMA_COHERENT;
- }
- }
- offset = idx->rel_pd_idx << I40IW_HMC_PAGED_BP_SHIFT;
- chunk->size = info->pages << I40IW_HMC_PAGED_BP_SHIFT;
- chunk->vaddr = ((u8 *)sd_entry->u.bp.addr.va + offset);
- chunk->fpm_addr = pble_rsrc->next_fpm_addr;
- i40iw_debug(dev, I40IW_DEBUG_PBLE, "chunk_size[%d] = 0x%x vaddr=%p fpm_addr = %llx\n",
- chunk->size, chunk->size, chunk->vaddr, chunk->fpm_addr);
- return 0;
-}
-
-/**
- * i40iw_free_vmalloc_mem - free vmalloc during close
- * @hw: hw struct
- * @chunk: chunk information for vmalloc
- */
-static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk *chunk)
-{
- struct pci_dev *pcidev = hw->pcidev;
- int i;
-
- if (!chunk->pg_cnt)
- goto done;
- for (i = 0; i < chunk->pg_cnt; i++)
- dma_unmap_page(&pcidev->dev, chunk->dmaaddrs[i], PAGE_SIZE, DMA_BIDIRECTIONAL);
-
- done:
- kfree(chunk->dmaaddrs);
- chunk->dmaaddrs = NULL;
- vfree(chunk->vaddr);
- chunk->vaddr = NULL;
- chunk->type = 0;
-}
-
-/**
- * i40iw_get_vmalloc_mem - get 2M page for sd
- * @hw: hardware address
- * @chunk: chunk to adf
- * @pg_cnt: #of 4 K pages
- */
-static enum i40iw_status_code i40iw_get_vmalloc_mem(struct i40iw_hw *hw,
- struct i40iw_chunk *chunk,
- int pg_cnt)
-{
- struct pci_dev *pcidev = hw->pcidev;
- struct page *page;
- u8 *addr;
- u32 size;
- int i;
-
- chunk->dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
- if (!chunk->dmaaddrs)
- return I40IW_ERR_NO_MEMORY;
- size = PAGE_SIZE * pg_cnt;
- chunk->vaddr = vmalloc(size);
- if (!chunk->vaddr) {
- kfree(chunk->dmaaddrs);
- chunk->dmaaddrs = NULL;
- return I40IW_ERR_NO_MEMORY;
- }
- chunk->size = size;
- addr = (u8 *)chunk->vaddr;
- for (i = 0; i < pg_cnt; i++) {
- page = vmalloc_to_page((void *)addr);
- if (!page)
- break;
- chunk->dmaaddrs[i] = dma_map_page(&pcidev->dev, page, 0,
- PAGE_SIZE, DMA_BIDIRECTIONAL);
- if (dma_mapping_error(&pcidev->dev, chunk->dmaaddrs[i]))
- break;
- addr += PAGE_SIZE;
- }
-
- chunk->pg_cnt = i;
- chunk->type = I40IW_VMALLOC;
- if (i == pg_cnt)
- return 0;
-
- i40iw_free_vmalloc_mem(hw, chunk);
- return I40IW_ERR_NO_MEMORY;
-}
-
-/**
- * fpm_to_idx - given fpm address, get pble index
- * @pble_rsrc: pble resource management
- * @addr: fpm address for index
- */
-static inline u32 fpm_to_idx(struct i40iw_hmc_pble_rsrc *pble_rsrc, u64 addr)
-{
- return (addr - (pble_rsrc->fpm_base_addr)) >> 3;
-}
-
-/**
- * add_bp_pages - add backing pages for sd
- * @dev: hardware control device structure
- * @pble_rsrc: pble resource management
- * @info: page info for sd
- */
-static enum i40iw_status_code add_bp_pages(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_add_page_info *info)
-{
- u8 *addr;
- struct i40iw_dma_mem mem;
- struct i40iw_hmc_pd_entry *pd_entry;
- struct i40iw_hmc_sd_entry *sd_entry = info->sd_entry;
- struct i40iw_hmc_info *hmc_info = info->hmc_info;
- struct i40iw_chunk *chunk = info->chunk;
- struct i40iw_manage_vf_pble_info vf_pble_info;
- enum i40iw_status_code status = 0;
- u32 rel_pd_idx = info->idx.rel_pd_idx;
- u32 pd_idx = info->idx.pd_idx;
- u32 i;
-
- status = i40iw_get_vmalloc_mem(dev->hw, chunk, info->pages);
- if (status)
- return I40IW_ERR_NO_MEMORY;
- status = i40iw_add_sd_table_entry(dev->hw, hmc_info,
- info->idx.sd_idx, I40IW_SD_TYPE_PAGED,
- I40IW_HMC_DIRECT_BP_SIZE);
- if (status)
- goto error;
- if (!dev->is_pf) {
- status = i40iw_vchnl_vf_add_hmc_objs(dev, I40IW_HMC_IW_PBLE,
- fpm_to_idx(pble_rsrc,
- pble_rsrc->next_fpm_addr),
- (info->pages << PBLE_512_SHIFT));
- if (status) {
- i40iw_pr_err("allocate PBLEs in the PF. Error %i\n", status);
- goto error;
- }
- }
- addr = chunk->vaddr;
- for (i = 0; i < info->pages; i++) {
- mem.pa = chunk->dmaaddrs[i];
- mem.size = PAGE_SIZE;
- mem.va = (void *)(addr);
- pd_entry = &sd_entry->u.pd_table.pd_entry[rel_pd_idx++];
- if (!pd_entry->valid) {
- status = i40iw_add_pd_table_entry(dev->hw, hmc_info, pd_idx++, &mem);
- if (status)
- goto error;
- addr += PAGE_SIZE;
- } else {
- i40iw_pr_err("pd entry is valid expecting to be invalid\n");
- }
- }
- if (!dev->is_pf) {
- vf_pble_info.first_pd_index = info->idx.rel_pd_idx;
- vf_pble_info.inv_pd_ent = false;
- vf_pble_info.pd_entry_cnt = PBLE_PER_PAGE;
- vf_pble_info.pd_pl_pba = sd_entry->u.pd_table.pd_page_addr.pa;
- vf_pble_info.sd_index = info->idx.sd_idx;
- status = i40iw_hw_manage_vf_pble_bp(dev->back_dev,
- &vf_pble_info, true);
- if (status) {
- i40iw_pr_err("CQP manage VF PBLE BP failed. %i\n", status);
- goto error;
- }
- }
- chunk->fpm_addr = pble_rsrc->next_fpm_addr;
- return 0;
-error:
- i40iw_free_vmalloc_mem(dev->hw, chunk);
- return status;
-}
-
-/**
- * add_pble_pool - add a sd entry for pble resoure
- * @dev: hardware control device structure
- * @pble_rsrc: pble resource management
- */
-static enum i40iw_status_code add_pble_pool(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc)
-{
- struct i40iw_hmc_sd_entry *sd_entry;
- struct i40iw_hmc_info *hmc_info;
- struct i40iw_chunk *chunk;
- struct i40iw_add_page_info info;
- struct sd_pd_idx *idx = &info.idx;
- enum i40iw_status_code ret_code = 0;
- enum i40iw_sd_entry_type sd_entry_type;
- u64 sd_reg_val = 0;
- u32 pages;
-
- if (pble_rsrc->unallocated_pble < PBLE_PER_PAGE)
- return I40IW_ERR_NO_MEMORY;
- if (pble_rsrc->next_fpm_addr & 0xfff) {
- i40iw_pr_err("next fpm_addr %llx\n", pble_rsrc->next_fpm_addr);
- return I40IW_ERR_INVALID_PAGE_DESC_INDEX;
- }
- chunk = kzalloc(sizeof(*chunk), GFP_KERNEL);
- if (!chunk)
- return I40IW_ERR_NO_MEMORY;
- hmc_info = dev->hmc_info;
- chunk->fpm_addr = pble_rsrc->next_fpm_addr;
- get_sd_pd_idx(pble_rsrc, idx);
- sd_entry = &hmc_info->sd_table.sd_entry[idx->sd_idx];
- pages = (idx->rel_pd_idx) ? (I40IW_HMC_PD_CNT_IN_SD -
- idx->rel_pd_idx) : I40IW_HMC_PD_CNT_IN_SD;
- pages = min(pages, pble_rsrc->unallocated_pble >> PBLE_512_SHIFT);
- info.chunk = chunk;
- info.hmc_info = hmc_info;
- info.pages = pages;
- info.sd_entry = sd_entry;
- if (!sd_entry->valid) {
- sd_entry_type = (!idx->rel_pd_idx &&
- (pages == I40IW_HMC_PD_CNT_IN_SD) &&
- dev->is_pf) ? I40IW_SD_TYPE_DIRECT : I40IW_SD_TYPE_PAGED;
- } else {
- sd_entry_type = sd_entry->entry_type;
- }
- i40iw_debug(dev, I40IW_DEBUG_PBLE,
- "pages = %d, unallocated_pble[%u] current_fpm_addr = %llx\n",
- pages, pble_rsrc->unallocated_pble, pble_rsrc->next_fpm_addr);
- i40iw_debug(dev, I40IW_DEBUG_PBLE, "sd_entry_type = %d sd_entry valid = %d\n",
- sd_entry_type, sd_entry->valid);
-
- if (sd_entry_type == I40IW_SD_TYPE_DIRECT)
- ret_code = add_sd_direct(dev, pble_rsrc, &info);
- if (ret_code)
- sd_entry_type = I40IW_SD_TYPE_PAGED;
- else
- pble_rsrc->stats_direct_sds++;
-
- if (sd_entry_type == I40IW_SD_TYPE_PAGED) {
- ret_code = add_bp_pages(dev, pble_rsrc, &info);
- if (ret_code)
- goto error;
- else
- pble_rsrc->stats_paged_sds++;
- }
-
- if (gen_pool_add_virt(pble_rsrc->pinfo.pool, (unsigned long)chunk->vaddr,
- (phys_addr_t)chunk->fpm_addr, chunk->size, -1)) {
- i40iw_pr_err("could not allocate memory by gen_pool_addr_virt()\n");
- ret_code = I40IW_ERR_NO_MEMORY;
- goto error;
- }
- pble_rsrc->next_fpm_addr += chunk->size;
- i40iw_debug(dev, I40IW_DEBUG_PBLE, "next_fpm_addr = %llx chunk_size[%u] = 0x%x\n",
- pble_rsrc->next_fpm_addr, chunk->size, chunk->size);
- pble_rsrc->unallocated_pble -= (chunk->size >> 3);
- sd_reg_val = (sd_entry_type == I40IW_SD_TYPE_PAGED) ?
- sd_entry->u.pd_table.pd_page_addr.pa : sd_entry->u.bp.addr.pa;
- if (dev->is_pf && !sd_entry->valid) {
- ret_code = i40iw_hmc_sd_one(dev, hmc_info->hmc_fn_id,
- sd_reg_val, idx->sd_idx,
- sd_entry->entry_type, true);
- if (ret_code) {
- i40iw_pr_err("cqp cmd failed for sd (pbles)\n");
- goto error;
- }
- }
-
- sd_entry->valid = true;
- list_add(&chunk->list, &pble_rsrc->pinfo.clist);
- return 0;
- error:
- kfree(chunk);
- return ret_code;
-}
-
-/**
- * free_lvl2 - fee level 2 pble
- * @pble_rsrc: pble resource management
- * @palloc: level 2 pble allocation
- */
-static void free_lvl2(struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc)
-{
- u32 i;
- struct gen_pool *pool;
- struct i40iw_pble_level2 *lvl2 = &palloc->level2;
- struct i40iw_pble_info *root = &lvl2->root;
- struct i40iw_pble_info *leaf = lvl2->leaf;
-
- pool = pble_rsrc->pinfo.pool;
-
- for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
- if (leaf->addr)
- gen_pool_free(pool, leaf->addr, (leaf->cnt << 3));
- else
- break;
- }
-
- if (root->addr)
- gen_pool_free(pool, root->addr, (root->cnt << 3));
-
- kfree(lvl2->leaf);
- lvl2->leaf = NULL;
-}
-
-/**
- * get_lvl2_pble - get level 2 pble resource
- * @pble_rsrc: pble resource management
- * @palloc: level 2 pble allocation
- * @pool: pool pointer
- */
-static enum i40iw_status_code get_lvl2_pble(struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc,
- struct gen_pool *pool)
-{
- u32 lf4k, lflast, total, i;
- u32 pblcnt = PBLE_PER_PAGE;
- u64 *addr;
- struct i40iw_pble_level2 *lvl2 = &palloc->level2;
- struct i40iw_pble_info *root = &lvl2->root;
- struct i40iw_pble_info *leaf;
-
- /* number of full 512 (4K) leafs) */
- lf4k = palloc->total_cnt >> 9;
- lflast = palloc->total_cnt % PBLE_PER_PAGE;
- total = (lflast == 0) ? lf4k : lf4k + 1;
- lvl2->leaf_cnt = total;
-
- leaf = kzalloc((sizeof(*leaf) * total), GFP_ATOMIC);
- if (!leaf)
- return I40IW_ERR_NO_MEMORY;
- lvl2->leaf = leaf;
- /* allocate pbles for the root */
- root->addr = gen_pool_alloc(pool, (total << 3));
- if (!root->addr) {
- kfree(lvl2->leaf);
- lvl2->leaf = NULL;
- return I40IW_ERR_NO_MEMORY;
- }
- root->idx = fpm_to_idx(pble_rsrc,
- (u64)gen_pool_virt_to_phys(pool, root->addr));
- root->cnt = total;
- addr = (u64 *)root->addr;
- for (i = 0; i < total; i++, leaf++) {
- pblcnt = (lflast && ((i + 1) == total)) ? lflast : PBLE_PER_PAGE;
- leaf->addr = gen_pool_alloc(pool, (pblcnt << 3));
- if (!leaf->addr)
- goto error;
- leaf->idx = fpm_to_idx(pble_rsrc, (u64)gen_pool_virt_to_phys(pool, leaf->addr));
-
- leaf->cnt = pblcnt;
- *addr = (u64)leaf->idx;
- addr++;
- }
- palloc->level = I40IW_LEVEL_2;
- pble_rsrc->stats_lvl2++;
- return 0;
- error:
- free_lvl2(pble_rsrc, palloc);
- return I40IW_ERR_NO_MEMORY;
-}
-
-/**
- * get_lvl1_pble - get level 1 pble resource
- * @dev: hardware control device structure
- * @pble_rsrc: pble resource management
- * @palloc: level 1 pble allocation
- */
-static enum i40iw_status_code get_lvl1_pble(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc)
-{
- u64 *addr;
- struct gen_pool *pool;
- struct i40iw_pble_info *lvl1 = &palloc->level1;
-
- pool = pble_rsrc->pinfo.pool;
- addr = (u64 *)gen_pool_alloc(pool, (palloc->total_cnt << 3));
-
- if (!addr)
- return I40IW_ERR_NO_MEMORY;
-
- palloc->level = I40IW_LEVEL_1;
- lvl1->addr = (unsigned long)addr;
- lvl1->idx = fpm_to_idx(pble_rsrc, (u64)gen_pool_virt_to_phys(pool,
- (unsigned long)addr));
- lvl1->cnt = palloc->total_cnt;
- pble_rsrc->stats_lvl1++;
- return 0;
-}
-
-/**
- * get_lvl1_lvl2_pble - calls get_lvl1 and get_lvl2 pble routine
- * @dev: i40iw_sc_dev struct
- * @pble_rsrc: pble resources
- * @palloc: contains all inforamtion regarding pble (idx + pble addr)
- * @pool: pointer to general purpose special memory pool descriptor
- */
-static inline enum i40iw_status_code get_lvl1_lvl2_pble(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc,
- struct gen_pool *pool)
-{
- enum i40iw_status_code status = 0;
-
- status = get_lvl1_pble(dev, pble_rsrc, palloc);
- if (status && (palloc->total_cnt > PBLE_PER_PAGE))
- status = get_lvl2_pble(pble_rsrc, palloc, pool);
- return status;
-}
-
-/**
- * i40iw_get_pble - allocate pbles from the pool
- * @dev: i40iw_sc_dev struct
- * @pble_rsrc: pble resources
- * @palloc: contains all inforamtion regarding pble (idx + pble addr)
- * @pble_cnt: #of pbles requested
- */
-enum i40iw_status_code i40iw_get_pble(struct i40iw_sc_dev *dev,
- struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc,
- u32 pble_cnt)
-{
- struct gen_pool *pool;
- enum i40iw_status_code status = 0;
- u32 max_sds = 0;
- int i;
-
- pool = pble_rsrc->pinfo.pool;
- palloc->total_cnt = pble_cnt;
- palloc->level = I40IW_LEVEL_0;
- /*check first to see if we can get pble's without acquiring additional sd's */
- status = get_lvl1_lvl2_pble(dev, pble_rsrc, palloc, pool);
- if (!status)
- goto exit;
- max_sds = (palloc->total_cnt >> 18) + 1;
- for (i = 0; i < max_sds; i++) {
- status = add_pble_pool(dev, pble_rsrc);
- if (status)
- break;
- status = get_lvl1_lvl2_pble(dev, pble_rsrc, palloc, pool);
- if (!status)
- break;
- }
-exit:
- if (!status)
- pble_rsrc->stats_alloc_ok++;
- else
- pble_rsrc->stats_alloc_fail++;
-
- return status;
-}
-
-/**
- * i40iw_free_pble - put pbles back into pool
- * @pble_rsrc: pble resources
- * @palloc: contains all inforamtion regarding pble resource being freed
- */
-void i40iw_free_pble(struct i40iw_hmc_pble_rsrc *pble_rsrc,
- struct i40iw_pble_alloc *palloc)
-{
- struct gen_pool *pool;
-
- pool = pble_rsrc->pinfo.pool;
- if (palloc->level == I40IW_LEVEL_2)
- free_lvl2(pble_rsrc, palloc);
- else
- gen_pool_free(pool, palloc->level1.addr,
- (palloc->level1.cnt << 3));
- pble_rsrc->stats_alloc_freed++;
-}
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-11 02:39:27 +0300