blob: 833b2a1dd4779b36be83a16f61991282a793b0f1 [file] [log] [blame]
Suneel Garapati53dc4482020-08-26 14:37:33 +02001/* SPDX-License-Identifier: GPL-2.0
2 *
3 * Copyright (C) 2018 Marvell International Ltd.
4 */
5
6#ifndef NICVF_QUEUES_H
7#define NICVF_QUEUES_H
8
9#include "q_struct.h"
10
11#define MAX_QUEUE_SET 128
12#define MAX_RCV_QUEUES_PER_QS 8
13#define MAX_RCV_BUF_DESC_RINGS_PER_QS 2
14#define MAX_SND_QUEUES_PER_QS 8
15#define MAX_CMP_QUEUES_PER_QS 8
16
17/* VF's queue interrupt ranges */
18#define NICVF_INTR_ID_CQ 0
19#define NICVF_INTR_ID_SQ 8
20#define NICVF_INTR_ID_RBDR 16
21#define NICVF_INTR_ID_MISC 18
22#define NICVF_INTR_ID_QS_ERR 19
23
24#define RBDR_SIZE0 0ULL /* 8K entries */
25#define RBDR_SIZE1 1ULL /* 16K entries */
26#define RBDR_SIZE2 2ULL /* 32K entries */
27#define RBDR_SIZE3 3ULL /* 64K entries */
28#define RBDR_SIZE4 4ULL /* 126K entries */
29#define RBDR_SIZE5 5ULL /* 256K entries */
30#define RBDR_SIZE6 6ULL /* 512K entries */
31
32#define SND_QUEUE_SIZE0 0ULL /* 1K entries */
33#define SND_QUEUE_SIZE1 1ULL /* 2K entries */
34#define SND_QUEUE_SIZE2 2ULL /* 4K entries */
35#define SND_QUEUE_SIZE3 3ULL /* 8K entries */
36#define SND_QUEUE_SIZE4 4ULL /* 16K entries */
37#define SND_QUEUE_SIZE5 5ULL /* 32K entries */
38#define SND_QUEUE_SIZE6 6ULL /* 64K entries */
39
40#define CMP_QUEUE_SIZE0 0ULL /* 1K entries */
41#define CMP_QUEUE_SIZE1 1ULL /* 2K entries */
42#define CMP_QUEUE_SIZE2 2ULL /* 4K entries */
43#define CMP_QUEUE_SIZE3 3ULL /* 8K entries */
44#define CMP_QUEUE_SIZE4 4ULL /* 16K entries */
45#define CMP_QUEUE_SIZE5 5ULL /* 32K entries */
46#define CMP_QUEUE_SIZE6 6ULL /* 64K entries */
47
48/* Default queue count per QS, its lengths and threshold values */
49#define RBDR_CNT 1
50#define RCV_QUEUE_CNT 1
51#define SND_QUEUE_CNT 1
52#define CMP_QUEUE_CNT 1 /* Max of RCV and SND qcount */
53
54#define SND_QSIZE SND_QUEUE_SIZE0
55#define SND_QUEUE_LEN BIT_ULL((SND_QSIZE + 10))
56#define SND_QUEUE_THRESH 2ULL
57#define MIN_SQ_DESC_PER_PKT_XMIT 2
58#define MAX_CQE_PER_PKT_XMIT 2
59
60#define CMP_QSIZE CMP_QUEUE_SIZE0
61#define CMP_QUEUE_LEN BIT_ULL((CMP_QSIZE + 10))
62#define CMP_QUEUE_CQE_THRESH 0
63#define CMP_QUEUE_TIMER_THRESH 1 /* 1 ms */
64
65#define RBDR_SIZE RBDR_SIZE0
66#define RCV_BUF_COUNT BIT_ULL((RBDR_SIZE + 13))
67#define RBDR_THRESH (RCV_BUF_COUNT / 2)
68#define DMA_BUFFER_LEN 2048 /* In multiples of 128bytes */
69#define RCV_FRAG_LEN DMA_BUFFER_LEN
70
71#define MAX_CQES_FOR_TX ((SND_QUEUE_LEN / MIN_SQ_DESC_PER_PKT_XMIT) *\
72 MAX_CQE_PER_PKT_XMIT)
73#define RQ_CQ_DROP ((CMP_QUEUE_LEN - MAX_CQES_FOR_TX) / 256)
74
75/* Descriptor size */
76#define SND_QUEUE_DESC_SIZE 16 /* 128 bits */
77#define CMP_QUEUE_DESC_SIZE 512
78
79/* Buffer / descriptor alignments */
80#define NICVF_RCV_BUF_ALIGN 7
81#define NICVF_RCV_BUF_ALIGN_BYTES BIT_ULL(NICVF_RCV_BUF_ALIGN)
82#define NICVF_CQ_BASE_ALIGN_BYTES 512 /* 9 bits */
83#define NICVF_SQ_BASE_ALIGN_BYTES 128 /* 7 bits */
84
85#define NICVF_ALIGNED_ADDR(ADDR, ALIGN_BYTES) ALIGN(ADDR, ALIGN_BYTES)
86
87/* Queue enable/disable */
88#define NICVF_SQ_EN BIT_ULL(19)
89
90/* Queue reset */
91#define NICVF_CQ_RESET BIT_ULL(41)
92#define NICVF_SQ_RESET BIT_ULL(17)
93#define NICVF_RBDR_RESET BIT_ULL(43)
94
95enum CQ_RX_ERRLVL_E {
96 CQ_ERRLVL_MAC,
97 CQ_ERRLVL_L2,
98 CQ_ERRLVL_L3,
99 CQ_ERRLVL_L4,
100};
101
102enum CQ_RX_ERROP_E {
103 CQ_RX_ERROP_RE_NONE = 0x0,
104 CQ_RX_ERROP_RE_PARTIAL = 0x1,
105 CQ_RX_ERROP_RE_JABBER = 0x2,
106 CQ_RX_ERROP_RE_FCS = 0x7,
107 CQ_RX_ERROP_RE_TERMINATE = 0x9,
108 CQ_RX_ERROP_RE_RX_CTL = 0xb,
109 CQ_RX_ERROP_PREL2_ERR = 0x1f,
110 CQ_RX_ERROP_L2_FRAGMENT = 0x20,
111 CQ_RX_ERROP_L2_OVERRUN = 0x21,
112 CQ_RX_ERROP_L2_PFCS = 0x22,
113 CQ_RX_ERROP_L2_PUNY = 0x23,
114 CQ_RX_ERROP_L2_MAL = 0x24,
115 CQ_RX_ERROP_L2_OVERSIZE = 0x25,
116 CQ_RX_ERROP_L2_UNDERSIZE = 0x26,
117 CQ_RX_ERROP_L2_LENMISM = 0x27,
118 CQ_RX_ERROP_L2_PCLP = 0x28,
119 CQ_RX_ERROP_IP_NOT = 0x41,
120 CQ_RX_ERROP_IP_CSUM_ERR = 0x42,
121 CQ_RX_ERROP_IP_MAL = 0x43,
122 CQ_RX_ERROP_IP_MALD = 0x44,
123 CQ_RX_ERROP_IP_HOP = 0x45,
124 CQ_RX_ERROP_L3_ICRC = 0x46,
125 CQ_RX_ERROP_L3_PCLP = 0x47,
126 CQ_RX_ERROP_L4_MAL = 0x61,
127 CQ_RX_ERROP_L4_CHK = 0x62,
128 CQ_RX_ERROP_UDP_LEN = 0x63,
129 CQ_RX_ERROP_L4_PORT = 0x64,
130 CQ_RX_ERROP_TCP_FLAG = 0x65,
131 CQ_RX_ERROP_TCP_OFFSET = 0x66,
132 CQ_RX_ERROP_L4_PCLP = 0x67,
133 CQ_RX_ERROP_RBDR_TRUNC = 0x70,
134};
135
136enum CQ_TX_ERROP_E {
137 CQ_TX_ERROP_GOOD = 0x0,
138 CQ_TX_ERROP_DESC_FAULT = 0x10,
139 CQ_TX_ERROP_HDR_CONS_ERR = 0x11,
140 CQ_TX_ERROP_SUBDC_ERR = 0x12,
141 CQ_TX_ERROP_IMM_SIZE_OFLOW = 0x80,
142 CQ_TX_ERROP_DATA_SEQUENCE_ERR = 0x81,
143 CQ_TX_ERROP_MEM_SEQUENCE_ERR = 0x82,
144 CQ_TX_ERROP_LOCK_VIOL = 0x83,
145 CQ_TX_ERROP_DATA_FAULT = 0x84,
146 CQ_TX_ERROP_TSTMP_CONFLICT = 0x85,
147 CQ_TX_ERROP_TSTMP_TIMEOUT = 0x86,
148 CQ_TX_ERROP_MEM_FAULT = 0x87,
149 CQ_TX_ERROP_CK_OVERLAP = 0x88,
150 CQ_TX_ERROP_CK_OFLOW = 0x89,
151 CQ_TX_ERROP_ENUM_LAST = 0x8a,
152};
153
154struct cmp_queue_stats {
155 struct rx_stats {
156 struct {
157 u64 mac_errs;
158 u64 l2_errs;
159 u64 l3_errs;
160 u64 l4_errs;
161 } errlvl;
162 struct {
163 u64 good;
164 u64 partial_pkts;
165 u64 jabber_errs;
166 u64 fcs_errs;
167 u64 terminate_errs;
168 u64 bgx_rx_errs;
169 u64 prel2_errs;
170 u64 l2_frags;
171 u64 l2_overruns;
172 u64 l2_pfcs;
173 u64 l2_puny;
174 u64 l2_hdr_malformed;
175 u64 l2_oversize;
176 u64 l2_undersize;
177 u64 l2_len_mismatch;
178 u64 l2_pclp;
179 u64 non_ip;
180 u64 ip_csum_err;
181 u64 ip_hdr_malformed;
182 u64 ip_payload_malformed;
183 u64 ip_hop_errs;
184 u64 l3_icrc_errs;
185 u64 l3_pclp;
186 u64 l4_malformed;
187 u64 l4_csum_errs;
188 u64 udp_len_err;
189 u64 bad_l4_port;
190 u64 bad_tcp_flag;
191 u64 tcp_offset_errs;
192 u64 l4_pclp;
193 u64 pkt_truncated;
194 } errop;
195 } rx;
196 struct tx_stats {
197 u64 good;
198 u64 desc_fault;
199 u64 hdr_cons_err;
200 u64 subdesc_err;
201 u64 imm_size_oflow;
202 u64 data_seq_err;
203 u64 mem_seq_err;
204 u64 lock_viol;
205 u64 data_fault;
206 u64 tstmp_conflict;
207 u64 tstmp_timeout;
208 u64 mem_fault;
209 u64 csum_overlap;
210 u64 csum_overflow;
211 } tx;
212};
213
214enum RQ_SQ_STATS {
215 RQ_SQ_STATS_OCTS,
216 RQ_SQ_STATS_PKTS,
217};
218
219struct rx_tx_queue_stats {
220 u64 bytes;
221 u64 pkts;
222};
223
224struct q_desc_mem {
225 uintptr_t dma;
226 u64 size;
227 u16 q_len;
228 uintptr_t phys_base;
229 void *base;
230 void *unalign_base;
231 bool allocated;
232};
233
234struct rbdr {
235 bool enable;
236 u32 dma_size;
237 u32 thresh; /* Threshold level for interrupt */
238 void *desc;
239 u32 head;
240 u32 tail;
241 struct q_desc_mem dmem;
242 uintptr_t buf_mem;
243 uintptr_t buffers;
244};
245
246struct rcv_queue {
247 bool enable;
248 struct rbdr *rbdr_start;
249 struct rbdr *rbdr_cont;
250 bool en_tcp_reassembly;
251 u8 cq_qs; /* CQ's QS to which this RQ is assigned */
252 u8 cq_idx; /* CQ index (0 to 7) in the QS */
253 u8 cont_rbdr_qs; /* Continue buffer ptrs - QS num */
254 u8 cont_qs_rbdr_idx; /* RBDR idx in the cont QS */
255 u8 start_rbdr_qs; /* First buffer ptrs - QS num */
256 u8 start_qs_rbdr_idx; /* RBDR idx in the above QS */
257 u8 caching;
258 struct rx_tx_queue_stats stats;
259};
260
261struct cmp_queue {
262 bool enable;
263 u16 intr_timer_thresh;
264 u16 thresh;
265 void *desc;
266 struct q_desc_mem dmem;
267 struct cmp_queue_stats stats;
268};
269
270struct snd_queue {
271 bool enable;
272 u8 cq_qs; /* CQ's QS to which this SQ is pointing */
273 u8 cq_idx; /* CQ index (0 to 7) in the above QS */
274 u16 thresh;
275 u32 free_cnt;
276 u32 head;
277 u32 tail;
278 u64 *skbuff;
279 void *desc;
280 struct q_desc_mem dmem;
281 struct rx_tx_queue_stats stats;
282};
283
284struct queue_set {
285 bool enable;
286 bool be_en;
287 u8 vnic_id;
288 u8 rq_cnt;
289 u8 cq_cnt;
290 u64 cq_len;
291 u8 sq_cnt;
292 u64 sq_len;
293 u8 rbdr_cnt;
294 u64 rbdr_len;
295 struct rcv_queue rq[MAX_RCV_QUEUES_PER_QS];
296 struct cmp_queue cq[MAX_CMP_QUEUES_PER_QS];
297 struct snd_queue sq[MAX_SND_QUEUES_PER_QS];
298 struct rbdr rbdr[MAX_RCV_BUF_DESC_RINGS_PER_QS];
299};
300
301#define GET_RBDR_DESC(RING, idx)\
302 (&(((struct rbdr_entry_t *)((RING)->desc))[idx]))
303#define GET_SQ_DESC(RING, idx)\
304 (&(((struct sq_hdr_subdesc *)((RING)->desc))[idx]))
305#define GET_CQ_DESC(RING, idx)\
306 (&(((union cq_desc_t *)((RING)->desc))[idx]))
307
308/* CQ status bits */
309#define CQ_WR_FULL BIT(26)
310#define CQ_WR_DISABLE BIT(25)
311#define CQ_WR_FAULT BIT(24)
312#define CQ_CQE_COUNT (0xFFFF << 0)
313
314#define CQ_ERR_MASK (CQ_WR_FULL | CQ_WR_DISABLE | CQ_WR_FAULT)
315
316int nicvf_set_qset_resources(struct nicvf *nic);
317int nicvf_config_data_transfer(struct nicvf *nic, bool enable);
318void nicvf_qset_config(struct nicvf *nic, bool enable);
319void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs,
320 int qidx, bool enable);
321
322void nicvf_sq_enable(struct nicvf *nic, struct snd_queue *sq, int qidx);
323void nicvf_sq_disable(struct nicvf *nic, int qidx);
324void nicvf_put_sq_desc(struct snd_queue *sq, int desc_cnt);
325void nicvf_sq_free_used_descs(struct udevice *dev,
326 struct snd_queue *sq, int qidx);
327int nicvf_sq_append_pkt(struct nicvf *nic, void *pkt, size_t pkt_len);
328
329void *nicvf_get_rcv_pkt(struct nicvf *nic, void *cq_desc, size_t *pkt_len);
330void nicvf_refill_rbdr(struct nicvf *nic);
331
332void nicvf_enable_intr(struct nicvf *nic, int int_type, int q_idx);
333void nicvf_disable_intr(struct nicvf *nic, int int_type, int q_idx);
334void nicvf_clear_intr(struct nicvf *nic, int int_type, int q_idx);
335int nicvf_is_intr_enabled(struct nicvf *nic, int int_type, int q_idx);
336
337/* Register access APIs */
338void nicvf_reg_write(struct nicvf *nic, u64 offset, u64 val);
339u64 nicvf_reg_read(struct nicvf *nic, u64 offset);
340void nicvf_qset_reg_write(struct nicvf *nic, u64 offset, u64 val);
341u64 nicvf_qset_reg_read(struct nicvf *nic, u64 offset);
342void nicvf_queue_reg_write(struct nicvf *nic, u64 offset,
343 u64 qidx, u64 val);
344u64 nicvf_queue_reg_read(struct nicvf *nic, u64 offset, u64 qidx);
345
346/* Stats */
347void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx);
348void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx);
349int nicvf_check_cqe_rx_errs(struct nicvf *nic,
350 struct cmp_queue *cq, void *cq_desc);
351int nicvf_check_cqe_tx_errs(struct nicvf *nic,
352 struct cmp_queue *cq, void *cq_desc);
353#endif /* NICVF_QUEUES_H */