1/*
2 * Copyright (c) 2017-2018 Cavium, Inc.
3 * All rights reserved.
4 *
5 *  Redistribution and use in source and binary forms, with or without
6 *  modification, are permitted provided that the following conditions
7 *  are met:
8 *
9 *  1. Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 *  2. Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 *  POSSIBILITY OF SUCH DAMAGE.
26 *
27 * $FreeBSD: stable/11/sys/dev/qlnx/qlnxe/ecore_cxt.h 337517 2018-08-09 01:17:35Z davidcs $
28 *
29 */
30
31#ifndef _ECORE_CID_
32#define _ECORE_CID_
33
34#include "ecore_hsi_common.h"
35#include "ecore_proto_if.h"
36#include "ecore_cxt_api.h"
37
38/* Tasks segments definitions  */
39#define ECORE_CXT_ISCSI_TID_SEG			PROTOCOLID_ISCSI	/* 0 */
40#define ECORE_CXT_FCOE_TID_SEG			PROTOCOLID_FCOE		/* 1 */
41#define ECORE_CXT_ROCE_TID_SEG			PROTOCOLID_ROCE		/* 2 */
42
43enum ecore_cxt_elem_type {
44	ECORE_ELEM_CXT,
45	ECORE_ELEM_SRQ,
46	ECORE_ELEM_TASK,
47	ECORE_ELEM_XRC_SRQ,
48};
49
50enum ilt_clients {
51	ILT_CLI_CDUC,
52	ILT_CLI_CDUT,
53	ILT_CLI_QM,
54	ILT_CLI_TM,
55	ILT_CLI_SRC,
56	ILT_CLI_TSDM,
57	ILT_CLI_MAX
58};
59
60u32 ecore_cxt_get_proto_cid_count(struct ecore_hwfn *p_hwfn,
61				  enum protocol_type type,
62				  u32 *vf_cid);
63
64u32 ecore_cxt_get_proto_tid_count(struct ecore_hwfn *p_hwfn,
65				  enum protocol_type type);
66
67u32 ecore_cxt_get_proto_cid_start(struct ecore_hwfn *p_hwfn,
68				  enum protocol_type type);
69
70u32 ecore_cxt_get_srq_count(struct ecore_hwfn *p_hwfn);
71
72u32 ecore_cxt_get_xrc_srq_count(struct ecore_hwfn *p_hwfn);
73
74/**
75 * @brief ecore_cxt_set_pf_params - Set the PF params for cxt init
76 *
77 * @param p_hwfn
78 *
79 * @return enum _ecore_status_t
80 */
81enum _ecore_status_t ecore_cxt_set_pf_params(struct ecore_hwfn *p_hwfn,
82					     u32 rdma_tasks);
83
84/**
85 * @brief ecore_cxt_cfg_ilt_compute - compute ILT init parameters
86 *
87 * @param p_hwfn
88 * @param last_line
89 *
90 * @return enum _ecore_status_t
91 */
92enum _ecore_status_t ecore_cxt_cfg_ilt_compute(struct ecore_hwfn *p_hwfn,
93					       u32 *last_line);
94
95/**
96 * @brief ecore_cxt_cfg_ilt_compute_excess - how many lines can be decreased
97 *
98 * @param p_hwfn
99 * @param used_lines
100 */
101u32 ecore_cxt_cfg_ilt_compute_excess(struct ecore_hwfn *p_hwfn, u32 used_lines);
102
103/**
104 * @brief ecore_cxt_mngr_alloc - Allocate and init the context manager struct
105 *
106 * @param p_hwfn
107 *
108 * @return enum _ecore_status_t
109 */
110enum _ecore_status_t ecore_cxt_mngr_alloc(struct ecore_hwfn *p_hwfn);
111
112/**
113 * @brief ecore_cxt_mngr_free
114 *
115 * @param p_hwfn
116 */
117void ecore_cxt_mngr_free(struct ecore_hwfn *p_hwfn);
118
119/**
120 * @brief ecore_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
121 *
122 * @param p_hwfn
123 *
124 * @return enum _ecore_status_t
125 */
126enum _ecore_status_t ecore_cxt_tables_alloc(struct ecore_hwfn *p_hwfn);
127
128/**
129 * @brief ecore_cxt_mngr_setup - Reset the acquired CIDs
130 *
131 * @param p_hwfn
132 */
133void ecore_cxt_mngr_setup(struct ecore_hwfn *p_hwfn);
134
135/**
136 * @brief ecore_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
137 *
138 * @param p_hwfn
139 */
140void ecore_cxt_hw_init_common(struct ecore_hwfn *p_hwfn);
141
142/**
143 * @brief ecore_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
144 *
145 * @param p_hwfn
146 * @param p_ptt
147 */
148void ecore_cxt_hw_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
149
150/**
151 * @brief ecore_qm_init_pf - Initailze the QM PF phase, per path
152 *
153 * @param p_hwfn
154 * @param p_ptt
155 * @param is_pf_loading
156 */
157void ecore_qm_init_pf(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
158		      bool is_pf_loading);
159
160 /**
161 * @brief Reconfigures QM pf on the fly
162 *
163 * @param p_hwfn
164 * @param p_ptt
165 *
166 * @return enum _ecore_status_t
167 */
168enum _ecore_status_t ecore_qm_reconf(struct ecore_hwfn *p_hwfn,
169				     struct ecore_ptt *p_ptt);
170
171#define ECORE_CXT_PF_CID (0xff)
172
173/**
174 * @brief ecore_cxt_release - Release a cid
175 *
176 * @param p_hwfn
177 * @param cid
178 */
179void ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn, u32 cid);
180
181/**
182 * @brief ecore_cxt_release - Release a cid belonging to a vf-queue
183 *
184 * @param p_hwfn
185 * @param cid
186 * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
187 */
188void _ecore_cxt_release_cid(struct ecore_hwfn *p_hwfn,
189			    u32 cid, u8 vfid);
190
191/**
192 * @brief ecore_cxt_acquire - Acquire a new cid of a specific protocol type
193 *
194 * @param p_hwfn
195 * @param type
196 * @param p_cid
197 *
198 * @return enum _ecore_status_t
199 */
200enum _ecore_status_t ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
201					   enum protocol_type type,
202					   u32 *p_cid);
203
204/**
205 * @brief _ecore_cxt_acquire - Acquire a new cid of a specific protocol type
206 *                             for a vf-queue
207 *
208 * @param p_hwfn
209 * @param type
210 * @param p_cid
211 * @param vfid - engine relative index. ECORE_CXT_PF_CID if belongs to PF
212 *
213 * @return enum _ecore_status_t
214 */
215enum _ecore_status_t _ecore_cxt_acquire_cid(struct ecore_hwfn *p_hwfn,
216					    enum protocol_type type,
217					    u32 *p_cid, u8 vfid);
218
219/**
220 * @brief ecore_cxt_get_tid_mem_info - function checks if the
221 *        page containing the iid in the ilt is already
222 *        allocated, if it is not it allocates the page.
223 *
224 * @param p_hwfn
225 * @param elem_type
226 * @param iid
227 *
228 * @return enum _ecore_status_t
229 */
230enum _ecore_status_t
231ecore_cxt_dynamic_ilt_alloc(struct ecore_hwfn *p_hwfn,
232			    enum ecore_cxt_elem_type elem_type,
233			    u32 iid);
234
235/**
236 * @brief ecore_cxt_free_ilt_range - function frees ilt pages
237 *        associated with the protocol and element type passed.
238 *
239 * @param p_hwfn
240 * @param proto
241 *
242 * @return enum _ecore_status_t
243 */
244enum _ecore_status_t
245ecore_cxt_free_ilt_range(struct ecore_hwfn *p_hwfn,
246			 enum ecore_cxt_elem_type elem_type,
247			 u32 start_iid, u32 count);
248
249#define ECORE_CTX_WORKING_MEM 0
250#define ECORE_CTX_FL_MEM 1
251enum _ecore_status_t ecore_cxt_get_task_ctx(struct ecore_hwfn *p_hwfn,
252					    u32 tid,
253					    u8 ctx_type,
254					    void **task_ctx);
255
256u32 ecore_cxt_get_ilt_page_size(struct ecore_hwfn *p_hwfn,
257				enum ilt_clients ilt_client);
258
259u32 ecore_cxt_get_total_srq_count(struct ecore_hwfn *p_hwfn);
260
261#endif /* _ECORE_CID_ */
262