mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
171 lines
5.5 KiB
171 lines
5.5 KiB
/* |
|
* Copyright (c) 2016 Hisilicon Limited. |
|
* Copyright (c) 2007, 2008 Mellanox Technologies. 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 |
|
* OpenIB.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. |
|
*/ |
|
|
|
#ifndef _HNS_ROCE_HEM_H |
|
#define _HNS_ROCE_HEM_H |
|
|
|
#define HEM_HOP_STEP_DIRECT 0xff |
|
|
|
enum { |
|
/* MAP HEM(Hardware Entry Memory) */ |
|
HEM_TYPE_QPC = 0, |
|
HEM_TYPE_MTPT, |
|
HEM_TYPE_CQC, |
|
HEM_TYPE_SRQC, |
|
HEM_TYPE_SCCC, |
|
HEM_TYPE_QPC_TIMER, |
|
HEM_TYPE_CQC_TIMER, |
|
HEM_TYPE_GMV, |
|
|
|
/* UNMAP HEM */ |
|
HEM_TYPE_MTT, |
|
HEM_TYPE_CQE, |
|
HEM_TYPE_SRQWQE, |
|
HEM_TYPE_IDX, |
|
HEM_TYPE_IRRL, |
|
HEM_TYPE_TRRL, |
|
}; |
|
|
|
#define HNS_ROCE_HEM_CHUNK_LEN \ |
|
((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \ |
|
(sizeof(struct scatterlist) + sizeof(void *))) |
|
|
|
#define check_whether_bt_num_3(type, hop_num) \ |
|
(type < HEM_TYPE_MTT && hop_num == 2) |
|
|
|
#define check_whether_bt_num_2(type, hop_num) \ |
|
((type < HEM_TYPE_MTT && hop_num == 1) || \ |
|
(type >= HEM_TYPE_MTT && hop_num == 2)) |
|
|
|
#define check_whether_bt_num_1(type, hop_num) \ |
|
((type < HEM_TYPE_MTT && hop_num == HNS_ROCE_HOP_NUM_0) || \ |
|
(type >= HEM_TYPE_MTT && hop_num == 1) || \ |
|
(type >= HEM_TYPE_MTT && hop_num == HNS_ROCE_HOP_NUM_0)) |
|
|
|
struct hns_roce_hem_chunk { |
|
struct list_head list; |
|
int npages; |
|
int nsg; |
|
struct scatterlist mem[HNS_ROCE_HEM_CHUNK_LEN]; |
|
void *buf[HNS_ROCE_HEM_CHUNK_LEN]; |
|
}; |
|
|
|
struct hns_roce_hem { |
|
struct list_head chunk_list; |
|
refcount_t refcount; |
|
}; |
|
|
|
struct hns_roce_hem_iter { |
|
struct hns_roce_hem *hem; |
|
struct hns_roce_hem_chunk *chunk; |
|
int page_idx; |
|
}; |
|
|
|
struct hns_roce_hem_mhop { |
|
u32 hop_num; |
|
u32 buf_chunk_size; |
|
u32 bt_chunk_size; |
|
u32 ba_l0_num; |
|
u32 l0_idx; /* level 0 base address table index */ |
|
u32 l1_idx; /* level 1 base address table index */ |
|
u32 l2_idx; /* level 2 base address table index */ |
|
}; |
|
|
|
void hns_roce_free_hem(struct hns_roce_dev *hr_dev, struct hns_roce_hem *hem); |
|
int hns_roce_table_get(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table, unsigned long obj); |
|
void hns_roce_table_put(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table, unsigned long obj); |
|
void *hns_roce_table_find(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table, unsigned long obj, |
|
dma_addr_t *dma_handle); |
|
int hns_roce_init_hem_table(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table, u32 type, |
|
unsigned long obj_size, unsigned long nobj, |
|
int use_lowmem); |
|
void hns_roce_cleanup_hem_table(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table); |
|
void hns_roce_cleanup_hem(struct hns_roce_dev *hr_dev); |
|
int hns_roce_calc_hem_mhop(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_table *table, unsigned long *obj, |
|
struct hns_roce_hem_mhop *mhop); |
|
bool hns_roce_check_whether_mhop(struct hns_roce_dev *hr_dev, u32 type); |
|
|
|
void hns_roce_hem_list_init(struct hns_roce_hem_list *hem_list); |
|
int hns_roce_hem_list_calc_root_ba(const struct hns_roce_buf_region *regions, |
|
int region_cnt, int unit); |
|
int hns_roce_hem_list_request(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_list *hem_list, |
|
const struct hns_roce_buf_region *regions, |
|
int region_cnt, unsigned int bt_pg_shift); |
|
void hns_roce_hem_list_release(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_list *hem_list); |
|
void *hns_roce_hem_list_find_mtt(struct hns_roce_dev *hr_dev, |
|
struct hns_roce_hem_list *hem_list, |
|
int offset, int *mtt_cnt, u64 *phy_addr); |
|
|
|
static inline void hns_roce_hem_first(struct hns_roce_hem *hem, |
|
struct hns_roce_hem_iter *iter) |
|
{ |
|
iter->hem = hem; |
|
iter->chunk = list_empty(&hem->chunk_list) ? NULL : |
|
list_entry(hem->chunk_list.next, |
|
struct hns_roce_hem_chunk, list); |
|
iter->page_idx = 0; |
|
} |
|
|
|
static inline int hns_roce_hem_last(struct hns_roce_hem_iter *iter) |
|
{ |
|
return !iter->chunk; |
|
} |
|
|
|
static inline void hns_roce_hem_next(struct hns_roce_hem_iter *iter) |
|
{ |
|
if (++iter->page_idx >= iter->chunk->nsg) { |
|
if (iter->chunk->list.next == &iter->hem->chunk_list) { |
|
iter->chunk = NULL; |
|
return; |
|
} |
|
|
|
iter->chunk = list_entry(iter->chunk->list.next, |
|
struct hns_roce_hem_chunk, list); |
|
iter->page_idx = 0; |
|
} |
|
} |
|
|
|
static inline dma_addr_t hns_roce_hem_addr(struct hns_roce_hem_iter *iter) |
|
{ |
|
return sg_dma_address(&iter->chunk->mem[iter->page_idx]); |
|
} |
|
|
|
#endif /* _HNS_ROCE_HEM_H */
|
|
|