From patchwork Fri Feb 15 17:10:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiraz Saleem X-Patchwork-Id: 10815545 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 34D3B13B4 for ; Fri, 15 Feb 2019 17:12:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 225462FCF9 for ; Fri, 15 Feb 2019 17:12:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 166E62FD1A; Fri, 15 Feb 2019 17:12:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 64CDF2FCFD for ; Fri, 15 Feb 2019 17:12:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729931AbfBORMG (ORCPT ); Fri, 15 Feb 2019 12:12:06 -0500 Received: from mga01.intel.com ([192.55.52.88]:48876 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728617AbfBORME (ORCPT ); Fri, 15 Feb 2019 12:12:04 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Feb 2019 09:11:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,373,1544515200"; d="scan'208";a="134635738" Received: from ssaleem-mobl4.amr.corp.intel.com ([10.122.129.109]) by orsmga002.jf.intel.com with ESMTP; 15 Feb 2019 09:11:57 -0800 From: Shiraz Saleem To: dledford@redhat.com, jgg@ziepe.ca, davem@davemloft.net Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, mustafa.ismail@intel.com, jeffrey.t.kirsher@intel.com, Shiraz Saleem Subject: [RFC v1 11/19] RDMA/irdma: Add PBLE resource manager Date: Fri, 15 Feb 2019 11:10:58 -0600 Message-Id: <20190215171107.6464-12-shiraz.saleem@intel.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20190215171107.6464-1-shiraz.saleem@intel.com> References: <20190215171107.6464-1-shiraz.saleem@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mustafa Ismail Implement a Physical Buffer List Entry (PBLE) resource manager to manage a pool of PBLE HMC resource objects. Signed-off-by: Mustafa Ismail Signed-off-by: Shiraz Saleem --- drivers/infiniband/hw/irdma/pble.c | 520 +++++++++++++++++++++++++++++++++++++ drivers/infiniband/hw/irdma/pble.h | 135 ++++++++++ 2 files changed, 655 insertions(+) create mode 100644 drivers/infiniband/hw/irdma/pble.c create mode 100644 drivers/infiniband/hw/irdma/pble.h diff --git a/drivers/infiniband/hw/irdma/pble.c b/drivers/infiniband/hw/irdma/pble.c new file mode 100644 index 0000000..66fab69 --- /dev/null +++ b/drivers/infiniband/hw/irdma/pble.c @@ -0,0 +1,520 @@ +// SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB +/* Copyright (c) 2019, Intel Corporation. */ + +#include "osdep.h" +#include "status.h" +#include "hmc.h" +#include "defs.h" +#include "type.h" +#include "protos.h" +#include "pble.h" + +static enum irdma_status_code add_pble_prm(struct irdma_hmc_pble_rsrc *pble_rsrc); + +/** + * irdma_destroy_pble_prm - destroy prm during module unload + * @pble_rsrc: pble resources + */ +void irdma_destroy_pble_prm(struct irdma_hmc_pble_rsrc *pble_rsrc) +{ + struct irdma_sc_dev *dev = pble_rsrc->dev; + struct irdma_chunk *chunk; + struct irdma_pble_prm *pinfo = &pble_rsrc->pinfo; + + while (!list_empty(&pinfo->clist)) { + chunk = (struct irdma_chunk *)pinfo->clist.next; + list_del(&chunk->list); + if (chunk->type == PBLE_SD_PAGED) + irdma_pble_free_paged_mem(chunk); + if (chunk->bitmapbuf) + irdma_free_virt_mem(dev->hw, &chunk->bitmapmem); + irdma_free_virt_mem(dev->hw, &chunk->chunkmem); + } +} + +/** + * irdma_hmc_init_pble - Initialize pble resources during module load + * @dev: irdma_sc_dev struct + * @pble_rsrc: pble resources + */ +enum irdma_status_code +irdma_hmc_init_pble(struct irdma_sc_dev *dev, + struct irdma_hmc_pble_rsrc *pble_rsrc) +{ + struct irdma_hmc_info *hmc_info; + u32 fpm_idx = 0; + enum irdma_status_code status = 0; + + hmc_info = dev->hmc_info; + pble_rsrc->dev = dev; + pble_rsrc->fpm_base_addr = hmc_info->hmc_obj[IRDMA_HMC_IW_PBLE].base; + /* Start 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[IRDMA_HMC_IW_PBLE].cnt - fpm_idx; + pble_rsrc->next_fpm_addr = pble_rsrc->fpm_base_addr + (fpm_idx << 3); + pble_rsrc->pinfo.pble_shift = PBLE_SHIFT; + + spin_lock_init(&pble_rsrc->pinfo.prm_lock); + INIT_LIST_HEAD(&pble_rsrc->pinfo.clist); + if (add_pble_prm(pble_rsrc)) { + irdma_destroy_pble_prm(pble_rsrc); + status = IRDMA_ERR_NO_MEMORY; + } + + return status; +} + +/** + * 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 void get_sd_pd_idx(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct sd_pd_idx *idx) +{ + idx->sd_idx = (u32)(pble_rsrc->next_fpm_addr) / + IRDMA_HMC_DIRECT_BP_SIZE; + idx->pd_idx = (u32)(pble_rsrc->next_fpm_addr) / IRDMA_HMC_PAGED_BP_SIZE; + idx->rel_pd_idx = (idx->pd_idx % IRDMA_HMC_PD_CNT_IN_SD); +} + +/** + * add_sd_direct - add sd direct for pble + * @pble_rsrc: pble resource ptr + * @info: page info for sd + */ +static enum irdma_status_code +add_sd_direct(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_add_page_info *info) +{ + struct irdma_sc_dev *dev = pble_rsrc->dev; + enum irdma_status_code ret_code = 0; + struct sd_pd_idx *idx = &info->idx; + struct irdma_chunk *chunk = info->chunk; + struct irdma_hmc_info *hmc_info = info->hmc_info; + struct irdma_hmc_sd_entry *sd_entry = info->sd_entry; + u32 offset = 0; + + if (!sd_entry->valid) { + ret_code = irdma_add_sd_table_entry(dev->hw, hmc_info, + info->idx.sd_idx, + IRDMA_SD_TYPE_DIRECT, + IRDMA_HMC_DIRECT_BP_SIZE); + if (ret_code) + return ret_code; + + chunk->type = PBLE_SD_CONTIGOUS; + } + + offset = idx->rel_pd_idx << HMC_PAGED_BP_SHIFT; + chunk->size = info->pages << HMC_PAGED_BP_SHIFT; + chunk->vaddr = (u64)((u8 *)sd_entry->u.bp.addr.va + offset); + chunk->fpm_addr = pble_rsrc->next_fpm_addr; + irdma_debug(dev, IRDMA_DEBUG_PBLE, + "chunk_size[%lld] = 0x%llx vaddr=0x%llx fpm_addr = %llx\n", + chunk->size, chunk->size, chunk->vaddr, chunk->fpm_addr); + + return 0; +} + +/** + * fpm_to_idx - given fpm address, get pble index + * @pble_rsrc: pble resource management + * @addr: fpm address for index + */ +static u32 fpm_to_idx(struct irdma_hmc_pble_rsrc *pble_rsrc, u64 addr) +{ + u64 idx; + + idx = (addr - (pble_rsrc->fpm_base_addr)) >> 3; + + return (u32)idx; +} + +/** + * add_bp_pages - add backing pages for sd + * @pble_rsrc: pble resource management + * @info: page info for sd + */ +static enum irdma_status_code +add_bp_pages(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_add_page_info *info) +{ + struct irdma_sc_dev *dev = pble_rsrc->dev; + u8 *addr; + struct irdma_dma_mem mem; + struct irdma_hmc_pd_entry *pd_entry; + struct irdma_hmc_sd_entry *sd_entry = info->sd_entry; + struct irdma_hmc_info *hmc_info = info->hmc_info; + struct irdma_chunk *chunk = info->chunk; + enum irdma_status_code status = 0; + u32 rel_pd_idx = info->idx.rel_pd_idx; + u32 pd_idx = info->idx.pd_idx; + u32 i; + + if (irdma_pble_get_paged_mem(chunk, info->pages)) + return IRDMA_ERR_NO_MEMORY; + + status = irdma_add_sd_table_entry(dev->hw, hmc_info, + info->idx.sd_idx, IRDMA_SD_TYPE_PAGED, + IRDMA_HMC_DIRECT_BP_SIZE); + + if (status) + goto error; + + addr = (u8 *)chunk->vaddr; + for (i = 0; i < info->pages; i++) { + mem.pa = (u64)chunk->dmainfo.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 = irdma_add_pd_table_entry(dev, hmc_info, + pd_idx++, &mem); + if (status) + goto error; + + addr += PAGE_SIZE; + } + } + + chunk->fpm_addr = pble_rsrc->next_fpm_addr; + return 0; + +error: + irdma_pble_free_paged_mem(chunk); + + return status; +} + +/** + * add_pble_prm - add a sd entry for pble resoure + * @pble_rsrc: pble resource management + */ +static enum irdma_status_code add_pble_prm(struct irdma_hmc_pble_rsrc *pble_rsrc) +{ + struct irdma_sc_dev *dev = pble_rsrc->dev; + struct irdma_hmc_sd_entry *sd_entry; + struct irdma_hmc_info *hmc_info; + struct irdma_chunk *chunk; + struct irdma_add_page_info info; + struct sd_pd_idx *idx = &info.idx; + enum irdma_status_code ret_code = 0; + enum irdma_sd_entry_type sd_entry_type; + u64 sd_reg_val = 0; + struct irdma_virt_mem chunkmem; + u32 pages; + + if (pble_rsrc->unallocated_pble < PBLE_PER_PAGE) + return IRDMA_ERR_NO_MEMORY; + + if (pble_rsrc->next_fpm_addr & 0xfff) + return IRDMA_ERR_INVALID_PAGE_DESC_INDEX; + + ret_code = irdma_allocate_virt_mem(dev->hw, &chunkmem, sizeof(*chunk)); + if (ret_code) + return IRDMA_ERR_NO_MEMORY; + + chunk = (struct irdma_chunk *)chunkmem.va; + chunk->chunkmem = chunkmem; + hmc_info = dev->hmc_info; + chunk->dev = dev; + 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) ? (IRDMA_HMC_PD_CNT_IN_SD - + idx->rel_pd_idx) : IRDMA_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 == IRDMA_HMC_PD_CNT_IN_SD) && + dev->is_pf) ? + IRDMA_SD_TYPE_DIRECT : IRDMA_SD_TYPE_PAGED; + else + sd_entry_type = sd_entry->entry_type; + + irdma_debug(dev, IRDMA_DEBUG_PBLE, + "pages = %d, unallocated_pble[%d] current_fpm_addr = %llx\n", + pages, pble_rsrc->unallocated_pble, pble_rsrc->next_fpm_addr); + irdma_debug(dev, IRDMA_DEBUG_PBLE, "sd_entry_type = %d\n", + sd_entry_type); + if (sd_entry_type == IRDMA_SD_TYPE_DIRECT) + ret_code = add_sd_direct(pble_rsrc, &info); + + if (ret_code) + sd_entry_type = IRDMA_SD_TYPE_PAGED; + else + pble_rsrc->stats_direct_sds++; + + if (sd_entry_type == IRDMA_SD_TYPE_PAGED) { + ret_code = add_bp_pages(pble_rsrc, &info); + if (ret_code) + goto error; + else + pble_rsrc->stats_paged_sds++; + } + + ret_code = irdma_prm_add_pble_mem(&pble_rsrc->pinfo, chunk); + if (ret_code) + goto error; + + pble_rsrc->next_fpm_addr += chunk->size; + irdma_debug(dev, IRDMA_DEBUG_PBLE, + "next_fpm_addr = %llx chunk_size[%llu] = 0x%llx\n", + pble_rsrc->next_fpm_addr, chunk->size, chunk->size); + pble_rsrc->unallocated_pble -= (u32)(chunk->size >> 3); + list_add(&chunk->list, &pble_rsrc->pinfo.clist); + sd_reg_val = (sd_entry_type == IRDMA_SD_TYPE_PAGED) ? + sd_entry->u.pd_table.pd_page_addr.pa : sd_entry->u.bp.addr.pa; + if (sd_entry->valid) + return 0; + + if (dev->is_pf) { + ret_code = irdma_hmc_sd_one(dev, hmc_info->hmc_fn_id, + sd_reg_val, idx->sd_idx, + sd_entry->entry_type, true); + if (ret_code) + goto error; + } + + sd_entry->valid = true; + return 0; + +error: + if (chunk->bitmapbuf) + irdma_free_virt_mem(dev->hw, &chunk->bitmapmem); + + irdma_free_virt_mem(dev->hw, &chunk->chunkmem); + + return ret_code; +} + +/** + * free_lvl2 - fee level 2 pble + * @pble_rsrc: pble resource management + * @palloc: level 2 pble allocation + */ +static void free_lvl2(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc) +{ + u32 i; + struct irdma_sc_dev *dev = pble_rsrc->dev; + struct irdma_pble_level2 *lvl2 = &palloc->level2; + struct irdma_pble_info *root = &lvl2->root; + struct irdma_pble_info *leaf = lvl2->leaf; + + for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) { + if (leaf->addr) + irdma_prm_return_pbles(&pble_rsrc->pinfo, + &leaf->chunkinfo); + else + break; + } + + if (root->addr) + irdma_prm_return_pbles(&pble_rsrc->pinfo, &root->chunkinfo); + + irdma_free_virt_mem(dev->hw, &lvl2->leafmem); + lvl2->leaf = NULL; +} + +/** + * get_lvl2_pble - get level 2 pble resource + * @pble_rsrc: pble resource management + * @palloc: level 2 pble allocation + */ +static enum irdma_status_code +get_lvl2_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc) +{ + u32 lf4k, lflast, total, i; + u32 pblcnt = PBLE_PER_PAGE; + u64 *addr; + struct irdma_sc_dev *dev = pble_rsrc->dev; + struct irdma_pble_level2 *lvl2 = &palloc->level2; + struct irdma_pble_info *root = &lvl2->root; + struct irdma_pble_info *leaf; + enum irdma_status_code ret_code; + u64 fpm_addr; + + /* 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; + + ret_code = irdma_allocate_virt_mem(dev->hw, &lvl2->leafmem, + (sizeof(*leaf) * total)); + if (ret_code) + return ret_code; + + lvl2->leaf = (struct irdma_pble_info *)lvl2->leafmem.va; + leaf = lvl2->leaf; + ret_code = irdma_prm_get_pbles(&pble_rsrc->pinfo, + &root->chunkinfo, + total << 3, + &root->addr, + &fpm_addr); + if (ret_code) { + irdma_free_virt_mem(dev->hw, &lvl2->leafmem); + lvl2->leaf = NULL; + return IRDMA_ERR_NO_MEMORY; + } + + root->idx = fpm_to_idx(pble_rsrc, fpm_addr); + root->cnt = total; + addr = (u64 *)root->addr; + for (i = 0; i < total; i++, leaf++) { + pblcnt = (lflast && ((i + 1) == total)) ? + lflast : PBLE_PER_PAGE; + ret_code = irdma_prm_get_pbles(&pble_rsrc->pinfo, + &leaf->chunkinfo, + pblcnt << 3, + &leaf->addr, + &fpm_addr); + if (ret_code) + goto error; + + leaf->idx = fpm_to_idx(pble_rsrc, fpm_addr); + + leaf->cnt = pblcnt; + *addr = (u64)leaf->idx; + addr++; + } + + palloc->level = PBLE_LEVEL_2; + pble_rsrc->stats_lvl2++; + return 0; + +error: + free_lvl2(pble_rsrc, palloc); + + return IRDMA_ERR_NO_MEMORY; +} + +/** + * get_lvl1_pble - get level 1 pble resource + * @pble_rsrc: pble resource management + * @palloc: level 1 pble allocation + */ +static enum irdma_status_code +get_lvl1_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc) +{ + enum irdma_status_code ret_code; + u64 fpm_addr, vaddr; + struct irdma_pble_info *lvl1 = &palloc->level1; + + ret_code = irdma_prm_get_pbles(&pble_rsrc->pinfo, + &lvl1->chunkinfo, + palloc->total_cnt << 3, + &vaddr, + &fpm_addr); + if (ret_code) + return IRDMA_ERR_NO_MEMORY; + + lvl1->addr = vaddr; + palloc->level = PBLE_LEVEL_1; + lvl1->idx = fpm_to_idx(pble_rsrc, fpm_addr); + lvl1->cnt = palloc->total_cnt; + pble_rsrc->stats_lvl1++; + + return 0; +} + +/** + * get_lvl1_lvl2_pble - calls get_lvl1 and get_lvl2 pble routine + * @pble_rsrc: pble resources + * @palloc: contains all inforamtion regarding pble (idx + pble addr) + * @prm: pointer to general purpose special memory prm descriptor + */ +static enum irdma_status_code +get_lvl1_lvl2_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc, + bool level1_only) +{ + enum irdma_status_code status = 0; + + status = get_lvl1_pble(pble_rsrc, palloc); + if (!status || level1_only || palloc->total_cnt <= PBLE_PER_PAGE) + return status; + + status = get_lvl2_pble(pble_rsrc, palloc); + + return status; +} + +/** + * irdma_get_pble - allocate pbles from the prm + * @pble_rsrc: pble resources + * @palloc: contains all inforamtion regarding pble (idx + pble addr) + * @pble_cnt: #of pbles requested + * @level1_only: true if only pble level 1 to acquire + */ +enum irdma_status_code irdma_get_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc, + u32 pble_cnt, + bool level1_only) +{ + enum irdma_status_code status = 0; + unsigned long flags; + int max_sds = 0; + int i; + + palloc->total_cnt = pble_cnt; + palloc->level = PBLE_LEVEL_0; + spin_lock_irqsave(&pble_rsrc->pble_lock, flags); + /*check first to see if we can get pble's without acquiring + * additional sd's + */ + status = get_lvl1_lvl2_pble(pble_rsrc, palloc, level1_only); + if (!status) + goto exit; + + max_sds = (palloc->total_cnt >> 18) + 1; + for (i = 0; i < max_sds; i++) { + status = add_pble_prm(pble_rsrc); + if (status) + break; + + status = get_lvl1_lvl2_pble(pble_rsrc, palloc, level1_only); + /* if level1_only, only go through it once */ + if (!status || level1_only) + break; + } + +exit: + if (!status) { + pble_rsrc->allocdpbles += pble_cnt; + pble_rsrc->stats_alloc_ok++; + } else { + pble_rsrc->stats_alloc_fail++; + } + spin_unlock_irqrestore(&pble_rsrc->pble_lock, flags); + + return status; +} + +/** + * irdma_free_pble - put pbles back into prm + * @pble_rsrc: pble resources + * @palloc: contains all information regarding pble resource being freed + */ +void irdma_free_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc) +{ + pble_rsrc->freedpbles += palloc->total_cnt; + + if (palloc->level == PBLE_LEVEL_2) + free_lvl2(pble_rsrc, palloc); + else + irdma_prm_return_pbles(&pble_rsrc->pinfo, + &palloc->level1.chunkinfo); + pble_rsrc->stats_alloc_freed++; +} diff --git a/drivers/infiniband/hw/irdma/pble.h b/drivers/infiniband/hw/irdma/pble.h new file mode 100644 index 0000000..f9ecc87 --- /dev/null +++ b/drivers/infiniband/hw/irdma/pble.h @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ +/* Copyright (c) 2019, Intel Corporation. */ + +#ifndef IRDMA_PBLE_H +#define IRDMA_PBLE_H + +#define PBLE_SHIFT 6 +#define PBLE_PER_PAGE 512 +#define HMC_PAGED_BP_SHIFT 12 +#define PBLE_512_SHIFT 9 +#define PBLE_INVALID_IDX 0xffffffff + +enum irdma_pble_level { + PBLE_LEVEL_0 = 0, + PBLE_LEVEL_1 = 1, + PBLE_LEVEL_2 = 2, +}; + +enum irdma_alloc_type { + PBLE_NO_ALLOC = 0, + PBLE_SD_CONTIGOUS = 1, + PBLE_SD_PAGED = 2, +}; + +struct irdma_chunk; + +struct irdma_pble_chunkinfo { + struct irdma_chunk *pchunk; + u64 bit_idx; + u64 bits_used; +}; + +struct irdma_pble_info { + u64 addr; + u32 idx; + u32 cnt; + struct irdma_pble_chunkinfo chunkinfo; +}; + +struct irdma_pble_level2 { + struct irdma_pble_info root; + struct irdma_pble_info *leaf; + struct irdma_virt_mem leafmem; + u32 leaf_cnt; +}; + +struct irdma_pble_alloc { + u32 total_cnt; + enum irdma_pble_level level; + union { + struct irdma_pble_info level1; + struct irdma_pble_level2 level2; + }; +}; + +struct sd_pd_idx { + u32 sd_idx; + u32 pd_idx; + u32 rel_pd_idx; +}; + +struct irdma_add_page_info { + struct irdma_chunk *chunk; + struct irdma_hmc_sd_entry *sd_entry; + struct irdma_hmc_info *hmc_info; + struct sd_pd_idx idx; + u32 pages; +}; + +struct irdma_chunk { + struct list_head list; + struct irdma_dma_info dmainfo; + void *bitmapbuf; + + u32 sizeofbitmap; + u64 size; + u64 vaddr; + u64 fpm_addr; + u32 pg_cnt; + enum irdma_alloc_type type; + struct irdma_sc_dev *dev; + struct irdma_virt_mem bitmapmem; + struct irdma_virt_mem chunkmem; +}; + +struct irdma_pble_prm { + struct list_head clist; + spinlock_t prm_lock; /* protect prm bitmap */ + u64 total_pble_alloc; + u64 free_pble_cnt; + u8 pble_shift; +}; + +struct irdma_hmc_pble_rsrc { + u32 unallocated_pble; + spinlock_t pble_lock; /* to serialize PBLE resource acquisition */ + struct irdma_sc_dev *dev; + u64 fpm_base_addr; + u64 next_fpm_addr; + struct irdma_pble_prm pinfo; + u64 allocdpbles; + u64 freedpbles; + u32 stats_direct_sds; + u32 stats_paged_sds; + u64 stats_alloc_ok; + u64 stats_alloc_fail; + u64 stats_alloc_freed; + u64 stats_lvl1; + u64 stats_lvl2; +}; + +void irdma_destroy_pble_prm(struct irdma_hmc_pble_rsrc *pble_rsrc); +enum irdma_status_code irdma_hmc_init_pble(struct irdma_sc_dev *dev, + struct irdma_hmc_pble_rsrc *pble_rsrc); +void irdma_free_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc); +enum irdma_status_code irdma_get_pble(struct irdma_hmc_pble_rsrc *pble_rsrc, + struct irdma_pble_alloc *palloc, + u32 pble_cnt, + bool level1_only); +enum irdma_status_code irdma_prm_add_pble_mem(struct irdma_pble_prm *pprm, + struct irdma_chunk *pchunk); +enum irdma_status_code irdma_prm_get_pbles(struct irdma_pble_prm *pprm, + struct irdma_pble_chunkinfo *chunkinfo, + u32 mem_size, + u64 *vaddr, + u64 *fpm_addr); +void irdma_prm_return_pbles(struct irdma_pble_prm *pprm, + struct irdma_pble_chunkinfo *chunkinfo); +void irdma_pble_acquire_lock(struct irdma_hmc_pble_rsrc *pble_rsrc, unsigned long *flags); +void irdma_pble_release_lock(struct irdma_hmc_pble_rsrc *pble_rsrc, unsigned long *flags); +void irdma_pble_free_paged_mem(struct irdma_chunk *chunk); +enum irdma_status_code irdma_pble_get_paged_mem(struct irdma_chunk *chunk, + int pg_cnt); +#endif /* IRDMA_PBLE_H */