1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2 /* QLogic qed NIC Driver
3 * Copyright (c) 2015-2017 QLogic Corporation
4 * Copyright (c) 2019-2020 Marvell International Ltd.
10 #include <linux/types.h>
11 #include <linux/slab.h>
12 #include <linux/qed/qed_if.h>
19 enum protocol_type type;
22 #define MAX_TID_BLOCKS 512
25 u32 num_tids_per_block;
27 u8 *blocks[MAX_TID_BLOCKS]; /* 4K */
31 * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid
35 * @param p_info in/out
39 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn,
40 struct qed_cxt_info *p_info);
43 * @brief qed_cxt_get_tid_mem_info
50 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
51 struct qed_tid_mem *p_info);
53 #define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
54 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
55 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
56 enum qed_cxt_elem_type {
63 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn,
64 enum protocol_type type, u32 *vf_cid);
67 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init
70 * @param rdma_tasks - requested maximum
73 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks);
76 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters
83 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line);
86 * @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased
91 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines);
94 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct
100 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn);
103 * @brief qed_cxt_mngr_free
107 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn);
110 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
116 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn);
119 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs
123 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn);
126 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
132 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn);
135 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
140 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
143 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path
147 * @param is_pf_loading
149 void qed_qm_init_pf(struct qed_hwfn *p_hwfn,
150 struct qed_ptt *p_ptt, bool is_pf_loading);
153 * @brief Reconfigures QM pf on the fly
160 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
162 #define QED_CXT_PF_CID (0xff)
165 * @brief qed_cxt_release - Release a cid
170 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid);
173 * @brief qed_cxt_release - Release a cid belonging to a vf-queue
177 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
179 void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid);
182 * @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type
190 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
191 enum protocol_type type, u32 *p_cid);
194 * @brief _qed_cxt_acquire - Acquire a new cid of a specific protocol type
200 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
204 int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
205 enum protocol_type type, u32 *p_cid, u8 vfid);
207 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
208 enum qed_cxt_elem_type elem_type, u32 iid);
209 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn,
210 enum protocol_type type);
211 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
212 enum protocol_type type);
213 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto);
215 #define QED_CTX_WORKING_MEM 0
216 #define QED_CTX_FL_MEM 1
217 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
218 u32 tid, u8 ctx_type, void **task_ctx);
220 /* Max number of connection types in HW (DQ/CDU etc.) */
221 #define MAX_CONN_TYPES PROTOCOLID_COMMON
222 #define NUM_TASK_TYPES 2
223 #define NUM_TASK_PF_SEGMENTS 4
224 #define NUM_TASK_VF_SEGMENTS 1
226 /* PF per protocl configuration object */
227 #define TASK_SEGMENTS (NUM_TASK_PF_SEGMENTS + NUM_TASK_VF_SEGMENTS)
228 #define TASK_SEGMENT_VF (NUM_TASK_PF_SEGMENTS)
236 struct qed_conn_type_cfg {
239 struct qed_tid_seg tid_seg[TASK_SEGMENTS];
242 /* ILT Client configuration,
243 * Per connection type (protocol) resources (cids, tis, vf cids etc.)
244 * 1 - for connection context (CDUC) and for each task context we need two
245 * values, for regular task context and for force load memory
247 #define ILT_CLI_PF_BLOCKS (1 + NUM_TASK_PF_SEGMENTS * 2)
248 #define ILT_CLI_VF_BLOCKS (1 + NUM_TASK_VF_SEGMENTS * 2)
251 #define CDUT_SEG_BLK(n) (1 + (u8)(n))
252 #define CDUT_FL_SEG_BLK(n, X) (1 + (n) + NUM_TASK_ ## X ## _SEGMENTS)
254 struct ilt_cfg_pair {
259 struct qed_ilt_cli_blk {
260 u32 total_size; /* 0 means not active */
261 u32 real_size_in_page;
263 u32 dynamic_line_offset;
264 u32 dynamic_line_cnt;
267 struct qed_ilt_client_cfg {
271 struct ilt_cfg_pair first;
272 struct ilt_cfg_pair last;
273 struct ilt_cfg_pair p_size;
275 /* ILT client blocks for PF */
276 struct qed_ilt_cli_blk pf_blks[ILT_CLI_PF_BLOCKS];
279 /* ILT client blocks for VFs */
280 struct qed_ilt_cli_blk vf_blks[ILT_CLI_VF_BLOCKS];
284 struct qed_cid_acquired_map {
287 unsigned long *cid_map;
291 struct phys_mem_desc *dma_mem;
297 struct qed_cxt_mngr {
298 /* Per protocl configuration */
299 struct qed_conn_type_cfg conn_cfg[MAX_CONN_TYPES];
301 /* computed ILT structure */
302 struct qed_ilt_client_cfg clients[MAX_ILT_CLIENTS];
304 /* Task type sizes */
305 u32 task_type_size[NUM_TASK_TYPES];
307 /* total number of VFs for this hwfn -
308 * ALL VFs are symmetric in terms of HW resources
314 struct qed_cid_acquired_map acquired[MAX_CONN_TYPES];
316 struct qed_cid_acquired_map
317 acquired_vf[MAX_CONN_TYPES][MAX_NUM_VFS];
319 /* ILT shadow table */
320 struct phys_mem_desc *ilt_shadow;
324 /* Mutex for a dynamic ILT allocation */
328 struct qed_src_t2 src_t2;
333 /* total number of SRQ's for this hwfn */
337 /* Maximal number of L2 steering filters */
345 u16 qed_get_cdut_num_pf_init_pages(struct qed_hwfn *p_hwfn);
346 u16 qed_get_cdut_num_vf_init_pages(struct qed_hwfn *p_hwfn);
347 u16 qed_get_cdut_num_pf_work_pages(struct qed_hwfn *p_hwfn);
348 u16 qed_get_cdut_num_vf_work_pages(struct qed_hwfn *p_hwfn);
350 u32 qed_cxt_get_ilt_page_size(struct qed_hwfn *p_hwfn,
351 enum ilt_clients ilt_client);
353 u32 qed_cxt_get_total_srq_count(struct qed_hwfn *p_hwfn);