1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
4 #ifndef _MLXSW_PCI_HW_H
5 #define _MLXSW_PCI_HW_H
7 #include <linux/bitops.h>
11 #define MLXSW_PCI_BAR0_SIZE (1024 * 1024) /* 1MB */
12 #define MLXSW_PCI_PAGE_SIZE 4096
14 #define MLXSW_PCI_CIR_BASE 0x71000
15 #define MLXSW_PCI_CIR_IN_PARAM_HI MLXSW_PCI_CIR_BASE
16 #define MLXSW_PCI_CIR_IN_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x04)
17 #define MLXSW_PCI_CIR_IN_MODIFIER (MLXSW_PCI_CIR_BASE + 0x08)
18 #define MLXSW_PCI_CIR_OUT_PARAM_HI (MLXSW_PCI_CIR_BASE + 0x0C)
19 #define MLXSW_PCI_CIR_OUT_PARAM_LO (MLXSW_PCI_CIR_BASE + 0x10)
20 #define MLXSW_PCI_CIR_TOKEN (MLXSW_PCI_CIR_BASE + 0x14)
21 #define MLXSW_PCI_CIR_CTRL (MLXSW_PCI_CIR_BASE + 0x18)
22 #define MLXSW_PCI_CIR_CTRL_GO_BIT BIT(23)
23 #define MLXSW_PCI_CIR_CTRL_EVREQ_BIT BIT(22)
24 #define MLXSW_PCI_CIR_CTRL_OPCODE_MOD_SHIFT 12
25 #define MLXSW_PCI_CIR_CTRL_STATUS_SHIFT 24
26 #define MLXSW_PCI_CIR_TIMEOUT_MSECS 1000
28 #define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 900000
29 #define MLXSW_PCI_SW_RESET_WAIT_MSECS 200
30 #define MLXSW_PCI_FW_READY 0xA1844
31 #define MLXSW_PCI_FW_READY_MASK 0xFFFF
32 #define MLXSW_PCI_FW_READY_MAGIC 0x5E
34 #define MLXSW_PCI_DOORBELL_SDQ_OFFSET 0x000
35 #define MLXSW_PCI_DOORBELL_RDQ_OFFSET 0x200
36 #define MLXSW_PCI_DOORBELL_CQ_OFFSET 0x400
37 #define MLXSW_PCI_DOORBELL_EQ_OFFSET 0x600
38 #define MLXSW_PCI_DOORBELL_ARM_CQ_OFFSET 0x800
39 #define MLXSW_PCI_DOORBELL_ARM_EQ_OFFSET 0xA00
41 #define MLXSW_PCI_DOORBELL(offset, type_offset, num) \
42 ((offset) + (type_offset) + (num) * 4)
44 #define MLXSW_PCI_FREE_RUNNING_CLOCK_H(offset) (offset)
45 #define MLXSW_PCI_FREE_RUNNING_CLOCK_L(offset) ((offset) + 4)
47 #define MLXSW_PCI_CQS_MAX 96
48 #define MLXSW_PCI_EQS_COUNT 2
49 #define MLXSW_PCI_EQ_ASYNC_NUM 0
50 #define MLXSW_PCI_EQ_COMP_NUM 1
52 #define MLXSW_PCI_SDQS_MIN 2 /* EMAD and control traffic */
53 #define MLXSW_PCI_SDQ_EMAD_INDEX 0
54 #define MLXSW_PCI_SDQ_EMAD_TC 0
55 #define MLXSW_PCI_SDQ_CTL_TC 3
57 #define MLXSW_PCI_AQ_PAGES 8
58 #define MLXSW_PCI_AQ_SIZE (MLXSW_PCI_PAGE_SIZE * MLXSW_PCI_AQ_PAGES)
59 #define MLXSW_PCI_WQE_SIZE 32 /* 32 bytes per element */
60 #define MLXSW_PCI_CQE01_SIZE 16 /* 16 bytes per element */
61 #define MLXSW_PCI_CQE2_SIZE 32 /* 32 bytes per element */
62 #define MLXSW_PCI_CQE_SIZE_MAX MLXSW_PCI_CQE2_SIZE
63 #define MLXSW_PCI_EQE_SIZE 16 /* 16 bytes per element */
64 #define MLXSW_PCI_WQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_WQE_SIZE)
65 #define MLXSW_PCI_CQE01_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE01_SIZE)
66 #define MLXSW_PCI_CQE2_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE2_SIZE)
67 #define MLXSW_PCI_EQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_EQE_SIZE)
68 #define MLXSW_PCI_EQE_UPDATE_COUNT 0x80
70 #define MLXSW_PCI_WQE_SG_ENTRIES 3
71 #define MLXSW_PCI_WQE_TYPE_ETHERNET 0xA
74 * If set it indicates that a completion should be reported upon
75 * execution of this descriptor.
77 MLXSW_ITEM32(pci, wqe, c, 0x00, 31, 1);
80 * Local Processing, set if packet should be processed by the local
82 * For Ethernet EMAD (Direct Route and non Direct Route) -
83 * must be set if packet destination is local device
84 * For InfiniBand CTL - must be set if packet destination is local device
85 * Otherwise it must be clear
86 * Local Process packets must not exceed the size of 2K (including payload
89 MLXSW_ITEM32(pci, wqe, lp, 0x00, 30, 1);
94 MLXSW_ITEM32(pci, wqe, type, 0x00, 23, 4);
97 * Size of i-th scatter/gather entry, 0 if entry is unused.
99 MLXSW_ITEM16_INDEXED(pci, wqe, byte_count, 0x02, 0, 14, 0x02, 0x00, false);
102 * Physical address of i-th scatter/gather entry.
103 * Gather Entries must be 2Byte aligned.
105 MLXSW_ITEM64_INDEXED(pci, wqe, address, 0x08, 0, 64, 0x8, 0x0, false);
107 enum mlxsw_pci_cqe_v {
113 #define mlxsw_pci_cqe_item_helpers(name, v0, v1, v2) \
114 static inline u32 mlxsw_pci_cqe_##name##_get(enum mlxsw_pci_cqe_v v, char *cqe) \
118 case MLXSW_PCI_CQE_V0: \
119 return mlxsw_pci_cqe##v0##_##name##_get(cqe); \
120 case MLXSW_PCI_CQE_V1: \
121 return mlxsw_pci_cqe##v1##_##name##_get(cqe); \
122 case MLXSW_PCI_CQE_V2: \
123 return mlxsw_pci_cqe##v2##_##name##_get(cqe); \
126 static inline void mlxsw_pci_cqe_##name##_set(enum mlxsw_pci_cqe_v v, \
127 char *cqe, u32 val) \
131 case MLXSW_PCI_CQE_V0: \
132 mlxsw_pci_cqe##v0##_##name##_set(cqe, val); \
134 case MLXSW_PCI_CQE_V1: \
135 mlxsw_pci_cqe##v1##_##name##_set(cqe, val); \
137 case MLXSW_PCI_CQE_V2: \
138 mlxsw_pci_cqe##v2##_##name##_set(cqe, val); \
144 * Packet arrives from a port which is a LAG
146 MLXSW_ITEM32(pci, cqe0, lag, 0x00, 23, 1);
147 MLXSW_ITEM32(pci, cqe12, lag, 0x00, 24, 1);
148 mlxsw_pci_cqe_item_helpers(lag, 0, 12, 12);
150 /* pci_cqe_system_port/lag_id
151 * When lag=0: System port on which the packet was received
153 * bits [15:4] LAG ID on which the packet was received
154 * bits [3:0] sub_port on which the packet was received
156 MLXSW_ITEM32(pci, cqe, system_port, 0x00, 0, 16);
157 MLXSW_ITEM32(pci, cqe0, lag_id, 0x00, 4, 12);
158 MLXSW_ITEM32(pci, cqe12, lag_id, 0x00, 0, 16);
159 mlxsw_pci_cqe_item_helpers(lag_id, 0, 12, 12);
160 MLXSW_ITEM32(pci, cqe0, lag_subport, 0x00, 0, 4);
161 MLXSW_ITEM32(pci, cqe12, lag_subport, 0x00, 16, 8);
162 mlxsw_pci_cqe_item_helpers(lag_subport, 0, 12, 12);
164 /* pci_cqe_wqe_counter
165 * WQE count of the WQEs completed on the associated dqn
167 MLXSW_ITEM32(pci, cqe, wqe_counter, 0x04, 16, 16);
169 /* pci_cqe_byte_count
170 * Byte count of received packets including additional two
171 * Reserved Bytes that are append to the end of the frame.
172 * Reserved for Send CQE.
174 MLXSW_ITEM32(pci, cqe, byte_count, 0x04, 0, 14);
176 #define MLXSW_PCI_CQE2_MIRROR_CONG_INVALID 0xFFFF
178 /* pci_cqe_mirror_cong_high
179 * Congestion level in units of 8KB of the egress traffic class of the original
180 * packet that does mirroring to the CPU. Value of 0xFFFF means that the
181 * congestion level is invalid.
183 MLXSW_ITEM32(pci, cqe2, mirror_cong_high, 0x08, 16, 4);
186 * Trap ID that captured the packet.
188 MLXSW_ITEM32(pci, cqe, trap_id, 0x08, 0, 10);
191 * Length include CRC. Indicates the length field includes
194 MLXSW_ITEM32(pci, cqe0, crc, 0x0C, 8, 1);
195 MLXSW_ITEM32(pci, cqe12, crc, 0x0C, 9, 1);
196 mlxsw_pci_cqe_item_helpers(crc, 0, 12, 12);
201 MLXSW_ITEM32(pci, cqe0, e, 0x0C, 7, 1);
202 MLXSW_ITEM32(pci, cqe12, e, 0x00, 27, 1);
203 mlxsw_pci_cqe_item_helpers(e, 0, 12, 12);
209 MLXSW_ITEM32(pci, cqe0, sr, 0x0C, 6, 1);
210 MLXSW_ITEM32(pci, cqe12, sr, 0x00, 26, 1);
211 mlxsw_pci_cqe_item_helpers(sr, 0, 12, 12);
214 * Descriptor Queue (DQ) Number.
216 MLXSW_ITEM32(pci, cqe0, dqn, 0x0C, 1, 5);
217 MLXSW_ITEM32(pci, cqe12, dqn, 0x0C, 1, 6);
218 mlxsw_pci_cqe_item_helpers(dqn, 0, 12, 12);
220 #define MLXSW_PCI_CQE2_MIRROR_TCLASS_INVALID 0x1F
222 /* pci_cqe_mirror_tclass
223 * The egress traffic class of the original packet that does mirroring to the
224 * CPU. Value of 0x1F means that the traffic class is invalid.
226 MLXSW_ITEM32(pci, cqe2, mirror_tclass, 0x10, 27, 5);
229 * The Tx port of a packet that is mirrored / sampled to the CPU is a LAG.
231 MLXSW_ITEM32(pci, cqe2, tx_lag, 0x10, 24, 1);
233 /* pci_cqe_tx_lag_subport
234 * The port index within the LAG of a packet that is mirrored / sampled to the
235 * CPU. Reserved when tx_lag is 0.
237 MLXSW_ITEM32(pci, cqe2, tx_lag_subport, 0x10, 16, 8);
239 #define MLXSW_PCI_CQE2_TX_PORT_MULTI_PORT 0xFFFE
240 #define MLXSW_PCI_CQE2_TX_PORT_INVALID 0xFFFF
243 * The Tx LAG ID of the original packet that is mirrored / sampled to the CPU.
244 * Value of 0xFFFE means multi-port. Value fo 0xFFFF means that the Tx LAG ID
245 * is invalid. Reserved when tx_lag is 0.
247 MLXSW_ITEM32(pci, cqe2, tx_lag_id, 0x10, 0, 16);
249 /* pci_cqe_tx_system_port
250 * The Tx port of the original packet that is mirrored / sampled to the CPU.
251 * Value of 0xFFFE means multi-port. Value fo 0xFFFF means that the Tx port is
252 * invalid. Reserved when tx_lag is 1.
254 MLXSW_ITEM32(pci, cqe2, tx_system_port, 0x10, 0, 16);
256 /* pci_cqe_mirror_cong_low
257 * Congestion level in units of 8KB of the egress traffic class of the original
258 * packet that does mirroring to the CPU. Value of 0xFFFF means that the
259 * congestion level is invalid.
261 MLXSW_ITEM32(pci, cqe2, mirror_cong_low, 0x14, 20, 12);
263 #define MLXSW_PCI_CQE2_MIRROR_CONG_SHIFT 13 /* Units of 8KB. */
265 static inline u16 mlxsw_pci_cqe2_mirror_cong_get(const char *cqe)
267 u16 cong_high = mlxsw_pci_cqe2_mirror_cong_high_get(cqe);
268 u16 cong_low = mlxsw_pci_cqe2_mirror_cong_low_get(cqe);
270 return cong_high << 12 | cong_low;
273 /* pci_cqe_user_def_val_orig_pkt_len
274 * When trap_id is an ACL: User defined value from policy engine action.
276 MLXSW_ITEM32(pci, cqe2, user_def_val_orig_pkt_len, 0x14, 0, 20);
278 /* pci_cqe_mirror_reason
281 MLXSW_ITEM32(pci, cqe2, mirror_reason, 0x18, 24, 8);
283 #define MLXSW_PCI_CQE2_MIRROR_LATENCY_INVALID 0xFFFFFF
285 /* pci_cqe_mirror_latency
286 * End-to-end latency of the original packet that does mirroring to the CPU.
287 * Value of 0xFFFFFF means that the latency is invalid. Units are according to
288 * MOGCR.mirror_latency_units.
290 MLXSW_ITEM32(pci, cqe2, mirror_latency, 0x1C, 8, 24);
295 MLXSW_ITEM32(pci, cqe01, owner, 0x0C, 0, 1);
296 MLXSW_ITEM32(pci, cqe2, owner, 0x1C, 0, 1);
297 mlxsw_pci_cqe_item_helpers(owner, 01, 01, 2);
299 /* pci_eqe_event_type
302 MLXSW_ITEM32(pci, eqe, event_type, 0x0C, 24, 8);
303 #define MLXSW_PCI_EQE_EVENT_TYPE_COMP 0x00
304 #define MLXSW_PCI_EQE_EVENT_TYPE_CMD 0x0A
306 /* pci_eqe_event_sub_type
309 MLXSW_ITEM32(pci, eqe, event_sub_type, 0x0C, 16, 8);
312 * Completion Queue that triggered this EQE.
314 MLXSW_ITEM32(pci, eqe, cqn, 0x0C, 8, 7);
319 MLXSW_ITEM32(pci, eqe, owner, 0x0C, 0, 1);
322 * Command completion event - token
324 MLXSW_ITEM32(pci, eqe, cmd_token, 0x00, 16, 16);
326 /* pci_eqe_cmd_status
327 * Command completion event - status
329 MLXSW_ITEM32(pci, eqe, cmd_status, 0x00, 0, 8);
331 /* pci_eqe_cmd_out_param_h
332 * Command completion event - output parameter - higher part
334 MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x04, 0, 32);
336 /* pci_eqe_cmd_out_param_l
337 * Command completion event - output parameter - lower part
339 MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x08, 0, 32);