Loading...
Note: File does not exist in v3.1.
1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
3
4#ifndef _IONIC_DEV_H_
5#define _IONIC_DEV_H_
6
7#include <linux/atomic.h>
8#include <linux/mutex.h>
9#include <linux/workqueue.h>
10
11#include "ionic_if.h"
12#include "ionic_regs.h"
13
14#define IONIC_MAX_TX_DESC 8192
15#define IONIC_MAX_RX_DESC 16384
16#define IONIC_MIN_TXRX_DESC 64
17#define IONIC_DEF_TXRX_DESC 4096
18#define IONIC_RX_FILL_THRESHOLD 16
19#define IONIC_RX_FILL_DIV 8
20#define IONIC_LIFS_MAX 1024
21#define IONIC_WATCHDOG_SECS 5
22#define IONIC_ITR_COAL_USEC_DEFAULT 64
23
24#define IONIC_DEV_CMD_REG_VERSION 1
25#define IONIC_DEV_INFO_REG_COUNT 32
26#define IONIC_DEV_CMD_REG_COUNT 32
27
28struct ionic_dev_bar {
29 void __iomem *vaddr;
30 phys_addr_t bus_addr;
31 unsigned long len;
32 int res_index;
33};
34
35#ifndef __CHECKER__
36/* Registers */
37static_assert(sizeof(struct ionic_intr) == 32);
38
39static_assert(sizeof(struct ionic_doorbell) == 8);
40static_assert(sizeof(struct ionic_intr_status) == 8);
41static_assert(sizeof(union ionic_dev_regs) == 4096);
42static_assert(sizeof(union ionic_dev_info_regs) == 2048);
43static_assert(sizeof(union ionic_dev_cmd_regs) == 2048);
44static_assert(sizeof(struct ionic_lif_stats) == 1024);
45
46static_assert(sizeof(struct ionic_admin_cmd) == 64);
47static_assert(sizeof(struct ionic_admin_comp) == 16);
48static_assert(sizeof(struct ionic_nop_cmd) == 64);
49static_assert(sizeof(struct ionic_nop_comp) == 16);
50
51/* Device commands */
52static_assert(sizeof(struct ionic_dev_identify_cmd) == 64);
53static_assert(sizeof(struct ionic_dev_identify_comp) == 16);
54static_assert(sizeof(struct ionic_dev_init_cmd) == 64);
55static_assert(sizeof(struct ionic_dev_init_comp) == 16);
56static_assert(sizeof(struct ionic_dev_reset_cmd) == 64);
57static_assert(sizeof(struct ionic_dev_reset_comp) == 16);
58static_assert(sizeof(struct ionic_dev_getattr_cmd) == 64);
59static_assert(sizeof(struct ionic_dev_getattr_comp) == 16);
60static_assert(sizeof(struct ionic_dev_setattr_cmd) == 64);
61static_assert(sizeof(struct ionic_dev_setattr_comp) == 16);
62static_assert(sizeof(struct ionic_lif_setphc_cmd) == 64);
63
64/* Port commands */
65static_assert(sizeof(struct ionic_port_identify_cmd) == 64);
66static_assert(sizeof(struct ionic_port_identify_comp) == 16);
67static_assert(sizeof(struct ionic_port_init_cmd) == 64);
68static_assert(sizeof(struct ionic_port_init_comp) == 16);
69static_assert(sizeof(struct ionic_port_reset_cmd) == 64);
70static_assert(sizeof(struct ionic_port_reset_comp) == 16);
71static_assert(sizeof(struct ionic_port_getattr_cmd) == 64);
72static_assert(sizeof(struct ionic_port_getattr_comp) == 16);
73static_assert(sizeof(struct ionic_port_setattr_cmd) == 64);
74static_assert(sizeof(struct ionic_port_setattr_comp) == 16);
75
76/* LIF commands */
77static_assert(sizeof(struct ionic_lif_init_cmd) == 64);
78static_assert(sizeof(struct ionic_lif_init_comp) == 16);
79static_assert(sizeof(struct ionic_lif_reset_cmd) == 64);
80static_assert(sizeof(ionic_lif_reset_comp) == 16);
81static_assert(sizeof(struct ionic_lif_getattr_cmd) == 64);
82static_assert(sizeof(struct ionic_lif_getattr_comp) == 16);
83static_assert(sizeof(struct ionic_lif_setattr_cmd) == 64);
84static_assert(sizeof(struct ionic_lif_setattr_comp) == 16);
85
86static_assert(sizeof(struct ionic_q_init_cmd) == 64);
87static_assert(sizeof(struct ionic_q_init_comp) == 16);
88static_assert(sizeof(struct ionic_q_control_cmd) == 64);
89static_assert(sizeof(ionic_q_control_comp) == 16);
90static_assert(sizeof(struct ionic_q_identify_cmd) == 64);
91static_assert(sizeof(struct ionic_q_identify_comp) == 16);
92
93static_assert(sizeof(struct ionic_rx_mode_set_cmd) == 64);
94static_assert(sizeof(ionic_rx_mode_set_comp) == 16);
95static_assert(sizeof(struct ionic_rx_filter_add_cmd) == 64);
96static_assert(sizeof(struct ionic_rx_filter_add_comp) == 16);
97static_assert(sizeof(struct ionic_rx_filter_del_cmd) == 64);
98static_assert(sizeof(ionic_rx_filter_del_comp) == 16);
99
100/* RDMA commands */
101static_assert(sizeof(struct ionic_rdma_reset_cmd) == 64);
102static_assert(sizeof(struct ionic_rdma_queue_cmd) == 64);
103
104/* Events */
105static_assert(sizeof(struct ionic_notifyq_cmd) == 4);
106static_assert(sizeof(union ionic_notifyq_comp) == 64);
107static_assert(sizeof(struct ionic_notifyq_event) == 64);
108static_assert(sizeof(struct ionic_link_change_event) == 64);
109static_assert(sizeof(struct ionic_reset_event) == 64);
110static_assert(sizeof(struct ionic_heartbeat_event) == 64);
111static_assert(sizeof(struct ionic_log_event) == 64);
112
113/* I/O */
114static_assert(sizeof(struct ionic_txq_desc) == 16);
115static_assert(sizeof(struct ionic_txq_sg_desc) == 128);
116static_assert(sizeof(struct ionic_txq_comp) == 16);
117
118static_assert(sizeof(struct ionic_rxq_desc) == 16);
119static_assert(sizeof(struct ionic_rxq_sg_desc) == 128);
120static_assert(sizeof(struct ionic_rxq_comp) == 16);
121
122/* SR/IOV */
123static_assert(sizeof(struct ionic_vf_setattr_cmd) == 64);
124static_assert(sizeof(struct ionic_vf_setattr_comp) == 16);
125static_assert(sizeof(struct ionic_vf_getattr_cmd) == 64);
126static_assert(sizeof(struct ionic_vf_getattr_comp) == 16);
127#endif /* __CHECKER__ */
128
129struct ionic_devinfo {
130 u8 asic_type;
131 u8 asic_rev;
132 char fw_version[IONIC_DEVINFO_FWVERS_BUFLEN + 1];
133 char serial_num[IONIC_DEVINFO_SERIAL_BUFLEN + 1];
134};
135
136struct ionic_dev {
137 union ionic_dev_info_regs __iomem *dev_info_regs;
138 union ionic_dev_cmd_regs __iomem *dev_cmd_regs;
139 struct ionic_hwstamp_regs __iomem *hwstamp_regs;
140
141 atomic_long_t last_check_time;
142 unsigned long last_hb_time;
143 u32 last_fw_hb;
144 bool fw_hb_ready;
145 bool fw_status_ready;
146
147 u64 __iomem *db_pages;
148 dma_addr_t phy_db_pages;
149
150 struct ionic_intr __iomem *intr_ctrl;
151 u64 __iomem *intr_status;
152
153 u32 port_info_sz;
154 struct ionic_port_info *port_info;
155 dma_addr_t port_info_pa;
156
157 struct ionic_devinfo dev_info;
158};
159
160struct ionic_cq_info {
161 union {
162 void *cq_desc;
163 struct ionic_txq_comp *txcq;
164 struct ionic_rxq_comp *rxcq;
165 struct ionic_admin_comp *admincq;
166 struct ionic_notifyq_event *notifyq;
167 };
168};
169
170struct ionic_queue;
171struct ionic_qcq;
172struct ionic_desc_info;
173
174typedef void (*ionic_desc_cb)(struct ionic_queue *q,
175 struct ionic_desc_info *desc_info,
176 struct ionic_cq_info *cq_info, void *cb_arg);
177
178#define IONIC_PAGE_SIZE PAGE_SIZE
179#define IONIC_PAGE_SPLIT_SZ (PAGE_SIZE / 2)
180#define IONIC_PAGE_GFP_MASK (GFP_ATOMIC | __GFP_NOWARN |\
181 __GFP_COMP | __GFP_MEMALLOC)
182
183struct ionic_buf_info {
184 struct page *page;
185 dma_addr_t dma_addr;
186 u32 page_offset;
187 u32 len;
188};
189
190#define IONIC_MAX_FRAGS (1 + IONIC_TX_MAX_SG_ELEMS_V1)
191
192struct ionic_desc_info {
193 union {
194 void *desc;
195 struct ionic_txq_desc *txq_desc;
196 struct ionic_rxq_desc *rxq_desc;
197 struct ionic_admin_cmd *adminq_desc;
198 };
199 union {
200 void *sg_desc;
201 struct ionic_txq_sg_desc *txq_sg_desc;
202 struct ionic_rxq_sg_desc *rxq_sgl_desc;
203 };
204 unsigned int bytes;
205 unsigned int nbufs;
206 struct ionic_buf_info bufs[IONIC_MAX_FRAGS];
207 ionic_desc_cb cb;
208 void *cb_arg;
209};
210
211#define IONIC_QUEUE_NAME_MAX_SZ 32
212
213struct ionic_queue {
214 struct device *dev;
215 struct ionic_lif *lif;
216 struct ionic_desc_info *info;
217 u64 dbval;
218 u16 head_idx;
219 u16 tail_idx;
220 unsigned int index;
221 unsigned int num_descs;
222 unsigned int max_sg_elems;
223 u64 features;
224 u64 dbell_count;
225 u64 stop;
226 u64 wake;
227 u64 drop;
228 struct ionic_dev *idev;
229 unsigned int type;
230 unsigned int hw_index;
231 unsigned int hw_type;
232 union {
233 void *base;
234 struct ionic_txq_desc *txq;
235 struct ionic_rxq_desc *rxq;
236 struct ionic_admin_cmd *adminq;
237 };
238 union {
239 void *sg_base;
240 struct ionic_txq_sg_desc *txq_sgl;
241 struct ionic_rxq_sg_desc *rxq_sgl;
242 };
243 dma_addr_t base_pa;
244 dma_addr_t sg_base_pa;
245 unsigned int desc_size;
246 unsigned int sg_desc_size;
247 unsigned int pid;
248 char name[IONIC_QUEUE_NAME_MAX_SZ];
249} ____cacheline_aligned_in_smp;
250
251#define IONIC_INTR_INDEX_NOT_ASSIGNED -1
252#define IONIC_INTR_NAME_MAX_SZ 32
253
254struct ionic_intr_info {
255 char name[IONIC_INTR_NAME_MAX_SZ];
256 unsigned int index;
257 unsigned int vector;
258 u64 rearm_count;
259 unsigned int cpu;
260 cpumask_t affinity_mask;
261 u32 dim_coal_hw;
262};
263
264struct ionic_cq {
265 struct ionic_lif *lif;
266 struct ionic_cq_info *info;
267 struct ionic_queue *bound_q;
268 struct ionic_intr_info *bound_intr;
269 u16 tail_idx;
270 bool done_color;
271 unsigned int num_descs;
272 unsigned int desc_size;
273 u64 compl_count;
274 void *base;
275 dma_addr_t base_pa;
276} ____cacheline_aligned_in_smp;
277
278struct ionic;
279
280static inline void ionic_intr_init(struct ionic_dev *idev,
281 struct ionic_intr_info *intr,
282 unsigned long index)
283{
284 ionic_intr_clean(idev->intr_ctrl, index);
285 intr->index = index;
286}
287
288static inline unsigned int ionic_q_space_avail(struct ionic_queue *q)
289{
290 unsigned int avail = q->tail_idx;
291
292 if (q->head_idx >= avail)
293 avail += q->num_descs - q->head_idx - 1;
294 else
295 avail -= q->head_idx + 1;
296
297 return avail;
298}
299
300static inline bool ionic_q_has_space(struct ionic_queue *q, unsigned int want)
301{
302 return ionic_q_space_avail(q) >= want;
303}
304
305void ionic_init_devinfo(struct ionic *ionic);
306int ionic_dev_setup(struct ionic *ionic);
307
308void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd);
309u8 ionic_dev_cmd_status(struct ionic_dev *idev);
310bool ionic_dev_cmd_done(struct ionic_dev *idev);
311void ionic_dev_cmd_comp(struct ionic_dev *idev, union ionic_dev_cmd_comp *comp);
312
313void ionic_dev_cmd_identify(struct ionic_dev *idev, u8 ver);
314void ionic_dev_cmd_init(struct ionic_dev *idev);
315void ionic_dev_cmd_reset(struct ionic_dev *idev);
316
317void ionic_dev_cmd_port_identify(struct ionic_dev *idev);
318void ionic_dev_cmd_port_init(struct ionic_dev *idev);
319void ionic_dev_cmd_port_reset(struct ionic_dev *idev);
320void ionic_dev_cmd_port_state(struct ionic_dev *idev, u8 state);
321void ionic_dev_cmd_port_speed(struct ionic_dev *idev, u32 speed);
322void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, u8 an_enable);
323void ionic_dev_cmd_port_fec(struct ionic_dev *idev, u8 fec_type);
324void ionic_dev_cmd_port_pause(struct ionic_dev *idev, u8 pause_type);
325
326int ionic_set_vf_config(struct ionic *ionic, int vf, u8 attr, u8 *data);
327void ionic_dev_cmd_queue_identify(struct ionic_dev *idev,
328 u16 lif_type, u8 qtype, u8 qver);
329void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, u8 type, u8 ver);
330void ionic_dev_cmd_lif_init(struct ionic_dev *idev, u16 lif_index,
331 dma_addr_t addr);
332void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, u16 lif_index);
333void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq,
334 u16 lif_index, u16 intr_index);
335
336int ionic_db_page_num(struct ionic_lif *lif, int pid);
337
338int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq,
339 struct ionic_intr_info *intr,
340 unsigned int num_descs, size_t desc_size);
341void ionic_cq_map(struct ionic_cq *cq, void *base, dma_addr_t base_pa);
342void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q);
343typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, struct ionic_cq_info *cq_info);
344typedef void (*ionic_cq_done_cb)(void *done_arg);
345unsigned int ionic_cq_service(struct ionic_cq *cq, unsigned int work_to_do,
346 ionic_cq_cb cb, ionic_cq_done_cb done_cb,
347 void *done_arg);
348
349int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev,
350 struct ionic_queue *q, unsigned int index, const char *name,
351 unsigned int num_descs, size_t desc_size,
352 size_t sg_desc_size, unsigned int pid);
353void ionic_q_map(struct ionic_queue *q, void *base, dma_addr_t base_pa);
354void ionic_q_sg_map(struct ionic_queue *q, void *base, dma_addr_t base_pa);
355void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, ionic_desc_cb cb,
356 void *cb_arg);
357void ionic_q_rewind(struct ionic_queue *q, struct ionic_desc_info *start);
358void ionic_q_service(struct ionic_queue *q, struct ionic_cq_info *cq_info,
359 unsigned int stop_index);
360int ionic_heartbeat_check(struct ionic *ionic);
361
362#endif /* _IONIC_DEV_H_ */