Faisal Latif | 9715830 | 2016-01-20 13:40:06 -0600 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Copyright (c) 2015-2016 Intel Corporation. All rights reserved. |
| 4 | * |
| 5 | * This software is available to you under a choice of one of two |
| 6 | * licenses. You may choose to be licensed under the terms of the GNU |
| 7 | * General Public License (GPL) Version 2, available from the file |
| 8 | * COPYING in the main directory of this source tree, or the |
| 9 | * OpenFabrics.org BSD license below: |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or |
| 12 | * without modification, are permitted provided that the following |
| 13 | * conditions are met: |
| 14 | * |
| 15 | * - Redistributions of source code must retain the above |
| 16 | * copyright notice, this list of conditions and the following |
| 17 | * disclaimer. |
| 18 | * |
| 19 | * - Redistributions in binary form must reproduce the above |
| 20 | * copyright notice, this list of conditions and the following |
| 21 | * disclaimer in the documentation and/or other materials |
| 22 | * provided with the distribution. |
| 23 | * |
| 24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 31 | * SOFTWARE. |
| 32 | * |
| 33 | *******************************************************************************/ |
| 34 | |
| 35 | #ifndef I40IW_PBLE_H |
| 36 | #define I40IW_PBLE_H |
| 37 | |
| 38 | #define POOL_SHIFT 6 |
| 39 | #define PBLE_PER_PAGE 512 |
| 40 | #define I40IW_HMC_PAGED_BP_SHIFT 12 |
| 41 | #define PBLE_512_SHIFT 9 |
| 42 | |
| 43 | enum i40iw_pble_level { |
| 44 | I40IW_LEVEL_0 = 0, |
| 45 | I40IW_LEVEL_1 = 1, |
| 46 | I40IW_LEVEL_2 = 2 |
| 47 | }; |
| 48 | |
| 49 | enum i40iw_alloc_type { |
| 50 | I40IW_NO_ALLOC = 0, |
| 51 | I40IW_DMA_COHERENT = 1, |
| 52 | I40IW_VMALLOC = 2 |
| 53 | }; |
| 54 | |
| 55 | struct i40iw_pble_info { |
| 56 | unsigned long addr; |
| 57 | u32 idx; |
| 58 | u32 cnt; |
| 59 | }; |
| 60 | |
| 61 | struct i40iw_pble_level2 { |
| 62 | struct i40iw_pble_info root; |
| 63 | struct i40iw_pble_info *leaf; |
| 64 | u32 leaf_cnt; |
| 65 | }; |
| 66 | |
| 67 | struct i40iw_pble_alloc { |
| 68 | u32 total_cnt; |
| 69 | enum i40iw_pble_level level; |
| 70 | union { |
| 71 | struct i40iw_pble_info level1; |
| 72 | struct i40iw_pble_level2 level2; |
| 73 | }; |
| 74 | }; |
| 75 | |
| 76 | struct sd_pd_idx { |
| 77 | u32 sd_idx; |
| 78 | u32 pd_idx; |
| 79 | u32 rel_pd_idx; |
| 80 | }; |
| 81 | |
| 82 | struct i40iw_add_page_info { |
| 83 | struct i40iw_chunk *chunk; |
| 84 | struct i40iw_hmc_sd_entry *sd_entry; |
| 85 | struct i40iw_hmc_info *hmc_info; |
| 86 | struct sd_pd_idx idx; |
| 87 | u32 pages; |
| 88 | }; |
| 89 | |
| 90 | struct i40iw_chunk { |
| 91 | struct list_head list; |
| 92 | u32 size; |
| 93 | void *vaddr; |
| 94 | u64 fpm_addr; |
| 95 | u32 pg_cnt; |
| 96 | dma_addr_t *dmaaddrs; |
| 97 | enum i40iw_alloc_type type; |
| 98 | }; |
| 99 | |
| 100 | struct i40iw_pble_pool { |
| 101 | struct gen_pool *pool; |
| 102 | struct list_head clist; |
| 103 | u32 total_pble_alloc; |
| 104 | u32 free_pble_cnt; |
| 105 | u32 pool_shift; |
| 106 | }; |
| 107 | |
| 108 | struct i40iw_hmc_pble_rsrc { |
| 109 | u32 unallocated_pble; |
| 110 | u64 fpm_base_addr; |
| 111 | u64 next_fpm_addr; |
| 112 | struct i40iw_pble_pool pinfo; |
| 113 | |
| 114 | u32 stats_direct_sds; |
| 115 | u32 stats_paged_sds; |
| 116 | u64 stats_alloc_ok; |
| 117 | u64 stats_alloc_fail; |
| 118 | u64 stats_alloc_freed; |
| 119 | u64 stats_lvl1; |
| 120 | u64 stats_lvl2; |
| 121 | }; |
| 122 | |
| 123 | void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct i40iw_hmc_pble_rsrc *pble_rsrc); |
| 124 | enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev, |
| 125 | struct i40iw_hmc_pble_rsrc *pble_rsrc); |
| 126 | void i40iw_free_pble(struct i40iw_hmc_pble_rsrc *pble_rsrc, struct i40iw_pble_alloc *palloc); |
| 127 | enum i40iw_status_code i40iw_get_pble(struct i40iw_sc_dev *dev, |
| 128 | struct i40iw_hmc_pble_rsrc *pble_rsrc, |
| 129 | struct i40iw_pble_alloc *palloc, |
| 130 | u32 pble_cnt); |
| 131 | #endif |