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1 | /* |
2 | * Copyright (c) 2016 QLogic Corporation. | |
3 | * All rights reserved. | |
4 | * www.qlogic.com | |
5 | * | |
6 | * See LICENSE.qede_pmd for copyright and licensing details. | |
7 | */ | |
8 | ||
9 | #ifndef __ECORE_SPQ_H__ | |
10 | #define __ECORE_SPQ_H__ | |
11 | ||
12 | #include "ecore_hsi_common.h" | |
13 | #include "ecore_status.h" | |
14 | #include "ecore_hsi_eth.h" | |
15 | #include "ecore_chain.h" | |
16 | #include "ecore_sp_api.h" | |
17 | ||
18 | union ramrod_data { | |
19 | struct pf_start_ramrod_data pf_start; | |
20 | struct pf_update_ramrod_data pf_update; | |
21 | struct rl_update_ramrod_data rl_update; | |
22 | struct rx_queue_start_ramrod_data rx_queue_start; | |
23 | struct rx_queue_update_ramrod_data rx_queue_update; | |
24 | struct rx_queue_stop_ramrod_data rx_queue_stop; | |
25 | struct tx_queue_start_ramrod_data tx_queue_start; | |
26 | struct tx_queue_stop_ramrod_data tx_queue_stop; | |
27 | struct vport_start_ramrod_data vport_start; | |
28 | struct vport_stop_ramrod_data vport_stop; | |
29 | struct vport_update_ramrod_data vport_update; | |
30 | struct core_rx_start_ramrod_data core_rx_queue_start; | |
31 | struct core_rx_stop_ramrod_data core_rx_queue_stop; | |
32 | struct core_tx_start_ramrod_data core_tx_queue_start; | |
33 | struct core_tx_stop_ramrod_data core_tx_queue_stop; | |
34 | struct vport_filter_update_ramrod_data vport_filter_update; | |
35 | ||
36 | struct vf_start_ramrod_data vf_start; | |
37 | struct vf_stop_ramrod_data vf_stop; | |
38 | }; | |
39 | ||
40 | #define EQ_MAX_CREDIT 0xffffffff | |
41 | ||
42 | enum spq_priority { | |
43 | ECORE_SPQ_PRIORITY_NORMAL, | |
44 | ECORE_SPQ_PRIORITY_HIGH, | |
45 | }; | |
46 | ||
47 | union ecore_spq_req_comp { | |
48 | struct ecore_spq_comp_cb cb; | |
49 | u64 *done_addr; | |
50 | }; | |
51 | ||
52 | /* SPQ_MODE_EBLOCK */ | |
53 | struct ecore_spq_comp_done { | |
54 | u64 done; | |
55 | u8 fw_return_code; | |
56 | }; | |
57 | ||
58 | struct ecore_spq_entry { | |
59 | osal_list_entry_t list; | |
60 | ||
61 | u8 flags; | |
62 | ||
63 | /* HSI slow path element */ | |
64 | struct slow_path_element elem; | |
65 | ||
66 | union ramrod_data ramrod; | |
67 | ||
68 | enum spq_priority priority; | |
69 | ||
70 | /* pending queue for this entry */ | |
71 | osal_list_t *queue; | |
72 | ||
73 | enum spq_mode comp_mode; | |
74 | struct ecore_spq_comp_cb comp_cb; | |
75 | struct ecore_spq_comp_done comp_done; /* SPQ_MODE_EBLOCK */ | |
76 | }; | |
77 | ||
78 | struct ecore_eq { | |
79 | struct ecore_chain chain; | |
80 | u8 eq_sb_index; /* index within the SB */ | |
81 | __le16 *p_fw_cons; /* ptr to index value */ | |
82 | }; | |
83 | ||
84 | struct ecore_consq { | |
85 | struct ecore_chain chain; | |
86 | }; | |
87 | ||
88 | struct ecore_spq { | |
89 | osal_spinlock_t lock; | |
90 | ||
91 | osal_list_t unlimited_pending; | |
92 | osal_list_t pending; | |
93 | osal_list_t completion_pending; | |
94 | osal_list_t free_pool; | |
95 | ||
96 | struct ecore_chain chain; | |
97 | ||
98 | /* allocated dma-able memory for spq entries (+ramrod data) */ | |
99 | dma_addr_t p_phys; | |
100 | struct ecore_spq_entry *p_virt; | |
101 | ||
102 | /* Bitmap for handling out-of-order completions */ | |
103 | #define SPQ_RING_SIZE \ | |
104 | (CORE_SPQE_PAGE_SIZE_BYTES / sizeof(struct slow_path_element)) | |
105 | /* BITS_PER_LONG */ | |
106 | #define SPQ_COMP_BMAP_SIZE (SPQ_RING_SIZE / (sizeof(unsigned long) * 8)) | |
107 | unsigned long p_comp_bitmap[SPQ_COMP_BMAP_SIZE]; | |
108 | u8 comp_bitmap_idx; | |
109 | #define SPQ_COMP_BMAP_SET_BIT(p_spq, idx) \ | |
110 | (OSAL_SET_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) | |
111 | ||
112 | #define SPQ_COMP_BMAP_CLEAR_BIT(p_spq, idx) \ | |
113 | (OSAL_CLEAR_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) | |
114 | ||
115 | #define SPQ_COMP_BMAP_TEST_BIT(p_spq, idx) \ | |
116 | (OSAL_TEST_BIT(((idx) % SPQ_RING_SIZE), (p_spq)->p_comp_bitmap)) | |
117 | ||
118 | /* Statistics */ | |
119 | u32 unlimited_pending_count; | |
120 | u32 normal_count; | |
121 | u32 high_count; | |
122 | u32 comp_sent_count; | |
123 | u32 comp_count; | |
124 | ||
125 | u32 cid; | |
126 | }; | |
127 | ||
128 | struct ecore_port; | |
129 | struct ecore_hwfn; | |
130 | ||
131 | /** | |
132 | * @brief ecore_spq_post - Posts a Slow hwfn request to FW, or lacking that | |
133 | * Pends it to the future list. | |
134 | * | |
135 | * @param p_hwfn | |
136 | * @param p_req | |
137 | * | |
138 | * @return enum _ecore_status_t | |
139 | */ | |
140 | enum _ecore_status_t ecore_spq_post(struct ecore_hwfn *p_hwfn, | |
141 | struct ecore_spq_entry *p_ent, | |
142 | u8 *fw_return_code); | |
143 | ||
144 | /** | |
145 | * @brief ecore_spq_allocate - Alloocates & initializes the SPQ and EQ. | |
146 | * | |
147 | * @param p_hwfn | |
148 | * | |
149 | * @return enum _ecore_status_t | |
150 | */ | |
151 | enum _ecore_status_t ecore_spq_alloc(struct ecore_hwfn *p_hwfn); | |
152 | ||
153 | /** | |
154 | * @brief ecore_spq_setup - Reset the SPQ to its start state. | |
155 | * | |
156 | * @param p_hwfn | |
157 | */ | |
158 | void ecore_spq_setup(struct ecore_hwfn *p_hwfn); | |
159 | ||
160 | /** | |
161 | * @brief ecore_spq_deallocate - Deallocates the given SPQ struct. | |
162 | * | |
163 | * @param p_hwfn | |
164 | */ | |
165 | void ecore_spq_free(struct ecore_hwfn *p_hwfn); | |
166 | ||
167 | /** | |
168 | * @brief ecore_spq_get_entry - Obtain an entrry from the spq | |
169 | * free pool list. | |
170 | * | |
171 | * | |
172 | * | |
173 | * @param p_hwfn | |
174 | * @param pp_ent | |
175 | * | |
176 | * @return enum _ecore_status_t | |
177 | */ | |
178 | enum _ecore_status_t | |
179 | ecore_spq_get_entry(struct ecore_hwfn *p_hwfn, | |
180 | struct ecore_spq_entry **pp_ent); | |
181 | ||
182 | /** | |
183 | * @brief ecore_spq_return_entry - Return an entry to spq free | |
184 | * pool list | |
185 | * | |
186 | * @param p_hwfn | |
187 | * @param p_ent | |
188 | */ | |
189 | void ecore_spq_return_entry(struct ecore_hwfn *p_hwfn, | |
190 | struct ecore_spq_entry *p_ent); | |
191 | /** | |
192 | * @brief ecore_eq_allocate - Allocates & initializes an EQ struct | |
193 | * | |
194 | * @param p_hwfn | |
195 | * @param num_elem number of elements in the eq | |
196 | * | |
197 | * @return struct ecore_eq* - a newly allocated structure; NULL upon error. | |
198 | */ | |
199 | struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, | |
200 | u16 num_elem); | |
201 | ||
202 | /** | |
203 | * @brief ecore_eq_setup - Reset the SPQ to its start state. | |
204 | * | |
205 | * @param p_hwfn | |
206 | * @param p_eq | |
207 | */ | |
208 | void ecore_eq_setup(struct ecore_hwfn *p_hwfn, | |
209 | struct ecore_eq *p_eq); | |
210 | ||
211 | /** | |
212 | * @brief ecore_eq_deallocate - deallocates the given EQ struct. | |
213 | * | |
214 | * @param p_hwfn | |
215 | * @param p_eq | |
216 | */ | |
217 | void ecore_eq_free(struct ecore_hwfn *p_hwfn, | |
218 | struct ecore_eq *p_eq); | |
219 | ||
220 | /** | |
221 | * @brief ecore_eq_prod_update - update the FW with default EQ producer | |
222 | * | |
223 | * @param p_hwfn | |
224 | * @param prod | |
225 | */ | |
226 | void ecore_eq_prod_update(struct ecore_hwfn *p_hwfn, | |
227 | u16 prod); | |
228 | ||
229 | /** | |
230 | * @brief ecore_eq_completion - Completes currently pending EQ elements | |
231 | * | |
232 | * @param p_hwfn | |
233 | * @param cookie | |
234 | * | |
235 | * @return enum _ecore_status_t | |
236 | */ | |
237 | enum _ecore_status_t ecore_eq_completion(struct ecore_hwfn *p_hwfn, | |
238 | void *cookie); | |
239 | ||
240 | /** | |
241 | * @brief ecore_spq_completion - Completes a single event | |
242 | * | |
243 | * @param p_hwfn | |
244 | * @param echo - echo value from cookie (used for determining completion) | |
245 | * @param p_data - data from cookie (used in callback function if applicable) | |
246 | * | |
247 | * @return enum _ecore_status_t | |
248 | */ | |
249 | enum _ecore_status_t ecore_spq_completion(struct ecore_hwfn *p_hwfn, | |
250 | __le16 echo, | |
251 | u8 fw_return_code, | |
252 | union event_ring_data *p_data); | |
253 | ||
254 | /** | |
255 | * @brief ecore_spq_get_cid - Given p_hwfn, return cid for the hwfn's SPQ | |
256 | * | |
257 | * @param p_hwfn | |
258 | * | |
259 | * @return u32 - SPQ CID | |
260 | */ | |
261 | u32 ecore_spq_get_cid(struct ecore_hwfn *p_hwfn); | |
262 | ||
263 | /** | |
264 | * @brief ecore_consq_alloc - Allocates & initializes an ConsQ | |
265 | * struct | |
266 | * | |
267 | * @param p_hwfn | |
268 | * | |
269 | * @return struct ecore_eq* - a newly allocated structure; NULL upon error. | |
270 | */ | |
271 | struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn); | |
272 | ||
273 | /** | |
274 | * @brief ecore_consq_setup - Reset the ConsQ to its start | |
275 | * state. | |
276 | * | |
277 | * @param p_hwfn | |
278 | * @param p_eq | |
279 | */ | |
280 | void ecore_consq_setup(struct ecore_hwfn *p_hwfn, | |
281 | struct ecore_consq *p_consq); | |
282 | ||
283 | /** | |
284 | * @brief ecore_consq_free - deallocates the given ConsQ struct. | |
285 | * | |
286 | * @param p_hwfn | |
287 | * @param p_eq | |
288 | */ | |
289 | void ecore_consq_free(struct ecore_hwfn *p_hwfn, | |
290 | struct ecore_consq *p_consq); | |
291 | ||
292 | #endif /* __ECORE_SPQ_H__ */ |