1 /*
2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
3 *
4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #ifndef __T4_HW_H
36 #define __T4_HW_H
37
38 #include <linux/types.h>
39
40 enum {
41 NCHAN = 4, /* # of HW channels */
42 MAX_MTU = 9600, /* max MAC MTU, excluding header + FCS */
43 EEPROMSIZE = 17408,/* Serial EEPROM physical size */
44 EEPROMVSIZE = 32768,/* Serial EEPROM virtual address space size */
45 EEPROMPFSIZE = 1024, /* EEPROM writable area size for PFn, n>0 */
46 RSS_NENTRIES = 2048, /* # of entries in RSS mapping table */
47 T6_RSS_NENTRIES = 4096, /* # of entries in RSS mapping table */
48 TCB_SIZE = 128, /* TCB size */
49 NMTUS = 16, /* size of MTU table */
50 NCCTRL_WIN = 32, /* # of congestion control windows */
51 NTX_SCHED = 8, /* # of HW Tx scheduling queues */
52 PM_NSTATS = 5, /* # of PM stats */
53 T6_PM_NSTATS = 7, /* # of PM stats in T6 */
54 MBOX_LEN = 64, /* mailbox size in bytes */
55 TRACE_LEN = 112, /* length of trace data and mask */
56 FILTER_OPT_LEN = 36, /* filter tuple width for optional components */
57 };
58
59 enum {
60 CIM_NUM_IBQ = 6, /* # of CIM IBQs */
61 CIM_NUM_OBQ = 6, /* # of CIM OBQs */
62 CIM_NUM_OBQ_T5 = 8, /* # of CIM OBQs for T5 adapter */
63 CIMLA_SIZE = 2048, /* # of 32-bit words in CIM LA */
64 CIM_PIFLA_SIZE = 64, /* # of 192-bit words in CIM PIF LA */
65 CIM_MALA_SIZE = 64, /* # of 160-bit words in CIM MA LA */
66 CIM_IBQ_SIZE = 128, /* # of 128-bit words in a CIM IBQ */
67 CIM_OBQ_SIZE = 128, /* # of 128-bit words in a CIM OBQ */
68 TPLA_SIZE = 128, /* # of 64-bit words in TP LA */
69 ULPRX_LA_SIZE = 512, /* # of 256-bit words in ULP_RX LA */
70 };
71
72 /* SGE context types */
73 enum ctxt_type {
74 CTXT_EGRESS,
75 CTXT_INGRESS,
76 CTXT_FLM,
77 CTXT_CNM,
78 };
79
80 enum {
81 SF_PAGE_SIZE = 256, /* serial flash page size */
82 SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */
83 };
84
85 enum { RSP_TYPE_FLBUF, RSP_TYPE_CPL, RSP_TYPE_INTR }; /* response entry types */
86
87 enum { MBOX_OWNER_NONE, MBOX_OWNER_FW, MBOX_OWNER_DRV }; /* mailbox owners */
88
89 enum {
90 SGE_MAX_WR_LEN = 512, /* max WR size in bytes */
91 SGE_CTXT_SIZE = 24, /* size of SGE context */
92 SGE_NTIMERS = 6, /* # of interrupt holdoff timer values */
93 SGE_NCOUNTERS = 4, /* # of interrupt packet counter values */
94 SGE_NDBQTIMERS = 8, /* # of Doorbell Queue Timer values */
95 SGE_MAX_IQ_SIZE = 65520,
96
97 SGE_TIMER_RSTRT_CNTR = 6, /* restart RX packet threshold counter */
98 SGE_TIMER_UPD_CIDX = 7, /* update cidx only */
99
100 SGE_EQ_IDXSIZE = 64, /* egress queue pidx/cidx unit size */
101
102 SGE_INTRDST_PCI = 0, /* interrupt destination is PCI-E */
103 SGE_INTRDST_IQ = 1, /* destination is an ingress queue */
104
105 SGE_UPDATEDEL_NONE = 0, /* ingress queue pidx update delivery */
106 SGE_UPDATEDEL_INTR = 1, /* interrupt */
107 SGE_UPDATEDEL_STPG = 2, /* status page */
108 SGE_UPDATEDEL_BOTH = 3, /* interrupt and status page */
109
110 SGE_HOSTFCMODE_NONE = 0, /* egress queue cidx updates */
111 SGE_HOSTFCMODE_IQ = 1, /* sent to ingress queue */
112 SGE_HOSTFCMODE_STPG = 2, /* sent to status page */
113 SGE_HOSTFCMODE_BOTH = 3, /* ingress queue and status page */
114
115 SGE_FETCHBURSTMIN_16B = 0,/* egress queue descriptor fetch minimum */
116 SGE_FETCHBURSTMIN_32B = 1,
117 SGE_FETCHBURSTMIN_64B = 2,
118 SGE_FETCHBURSTMIN_128B = 3,
119
120 SGE_FETCHBURSTMAX_64B = 0,/* egress queue descriptor fetch maximum */
121 SGE_FETCHBURSTMAX_128B = 1,
122 SGE_FETCHBURSTMAX_256B = 2,
123 SGE_FETCHBURSTMAX_512B = 3,
124
125 SGE_CIDXFLUSHTHRESH_1 = 0,/* egress queue cidx flush threshold */
126 SGE_CIDXFLUSHTHRESH_2 = 1,
127 SGE_CIDXFLUSHTHRESH_4 = 2,
128 SGE_CIDXFLUSHTHRESH_8 = 3,
129 SGE_CIDXFLUSHTHRESH_16 = 4,
130 SGE_CIDXFLUSHTHRESH_32 = 5,
131 SGE_CIDXFLUSHTHRESH_64 = 6,
132 SGE_CIDXFLUSHTHRESH_128 = 7,
133
134 SGE_INGPADBOUNDARY_SHIFT = 5,/* ingress queue pad boundary */
135 };
136
137 /* PCI-e memory window access */
138 enum pcie_memwin {
139 MEMWIN_NIC = 0,
140 MEMWIN_RSVD1 = 1,
141 MEMWIN_RSVD2 = 2,
142 MEMWIN_RDMA = 3,
143 MEMWIN_RSVD4 = 4,
144 MEMWIN_FOISCSI = 5,
145 MEMWIN_CSIOSTOR = 6,
146 MEMWIN_RSVD7 = 7,
147 };
148
149 struct sge_qstat { /* data written to SGE queue status entries */
150 __be32 qid;
151 __be16 cidx;
152 __be16 pidx;
153 };
154
155 /*
156 * Structure for last 128 bits of response descriptors
157 */
158 struct rsp_ctrl {
159 __be32 hdrbuflen_pidx;
160 __be32 pldbuflen_qid;
161 union {
162 u8 type_gen;
163 __be64 last_flit;
164 };
165 };
166
167 #define RSPD_NEWBUF_S 31
168 #define RSPD_NEWBUF_V(x) ((x) << RSPD_NEWBUF_S)
169 #define RSPD_NEWBUF_F RSPD_NEWBUF_V(1U)
170
171 #define RSPD_LEN_S 0
172 #define RSPD_LEN_M 0x7fffffff
173 #define RSPD_LEN_G(x) (((x) >> RSPD_LEN_S) & RSPD_LEN_M)
174
175 #define RSPD_QID_S RSPD_LEN_S
176 #define RSPD_QID_M RSPD_LEN_M
177 #define RSPD_QID_G(x) RSPD_LEN_G(x)
178
179 #define RSPD_GEN_S 7
180
181 #define RSPD_TYPE_S 4
182 #define RSPD_TYPE_M 0x3
183 #define RSPD_TYPE_G(x) (((x) >> RSPD_TYPE_S) & RSPD_TYPE_M)
184
185 /* Rx queue interrupt deferral fields: counter enable and timer index */
186 #define QINTR_CNT_EN_S 0
187 #define QINTR_CNT_EN_V(x) ((x) << QINTR_CNT_EN_S)
188 #define QINTR_CNT_EN_F QINTR_CNT_EN_V(1U)
189
190 #define QINTR_TIMER_IDX_S 1
191 #define QINTR_TIMER_IDX_M 0x7
192 #define QINTR_TIMER_IDX_V(x) ((x) << QINTR_TIMER_IDX_S)
193 #define QINTR_TIMER_IDX_G(x) (((x) >> QINTR_TIMER_IDX_S) & QINTR_TIMER_IDX_M)
194
195 /*
196 * Flash layout.
197 */
198 #define FLASH_START(start) ((start) * SF_SEC_SIZE)
199 #define FLASH_MAX_SIZE(nsecs) ((nsecs) * SF_SEC_SIZE)
200
201 enum {
202 /*
203 * Various Expansion-ROM boot images, etc.
204 */
205 FLASH_EXP_ROM_START_SEC = 0,
206 FLASH_EXP_ROM_NSECS = 6,
207 FLASH_EXP_ROM_START = FLASH_START(FLASH_EXP_ROM_START_SEC),
208 FLASH_EXP_ROM_MAX_SIZE = FLASH_MAX_SIZE(FLASH_EXP_ROM_NSECS),
209
210 /*
211 * iSCSI Boot Firmware Table (iBFT) and other driver-related
212 * parameters ...
213 */
214 FLASH_IBFT_START_SEC = 6,
215 FLASH_IBFT_NSECS = 1,
216 FLASH_IBFT_START = FLASH_START(FLASH_IBFT_START_SEC),
217 FLASH_IBFT_MAX_SIZE = FLASH_MAX_SIZE(FLASH_IBFT_NSECS),
218
219 /*
220 * Boot configuration data.
221 */
222 FLASH_BOOTCFG_START_SEC = 7,
223 FLASH_BOOTCFG_NSECS = 1,
224 FLASH_BOOTCFG_START = FLASH_START(FLASH_BOOTCFG_START_SEC),
225 FLASH_BOOTCFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_BOOTCFG_NSECS),
226
227 /*
228 * Location of firmware image in FLASH.
229 */
230 FLASH_FW_START_SEC = 8,
231 FLASH_FW_NSECS = 16,
232 FLASH_FW_START = FLASH_START(FLASH_FW_START_SEC),
233 FLASH_FW_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FW_NSECS),
234
235 /* Location of bootstrap firmware image in FLASH.
236 */
237 FLASH_FWBOOTSTRAP_START_SEC = 27,
238 FLASH_FWBOOTSTRAP_NSECS = 1,
239 FLASH_FWBOOTSTRAP_START = FLASH_START(FLASH_FWBOOTSTRAP_START_SEC),
240 FLASH_FWBOOTSTRAP_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FWBOOTSTRAP_NSECS),
241
242 /*
243 * iSCSI persistent/crash information.
244 */
245 FLASH_ISCSI_CRASH_START_SEC = 29,
246 FLASH_ISCSI_CRASH_NSECS = 1,
247 FLASH_ISCSI_CRASH_START = FLASH_START(FLASH_ISCSI_CRASH_START_SEC),
248 FLASH_ISCSI_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_ISCSI_CRASH_NSECS),
249
250 /*
251 * FCoE persistent/crash information.
252 */
253 FLASH_FCOE_CRASH_START_SEC = 30,
254 FLASH_FCOE_CRASH_NSECS = 1,
255 FLASH_FCOE_CRASH_START = FLASH_START(FLASH_FCOE_CRASH_START_SEC),
256 FLASH_FCOE_CRASH_MAX_SIZE = FLASH_MAX_SIZE(FLASH_FCOE_CRASH_NSECS),
257
258 /*
259 * Location of Firmware Configuration File in FLASH. Since the FPGA
260 * "FLASH" is smaller we need to store the Configuration File in a
261 * different location -- which will overlap the end of the firmware
262 * image if firmware ever gets that large ...
263 */
264 FLASH_CFG_START_SEC = 31,
265 FLASH_CFG_NSECS = 1,
266 FLASH_CFG_START = FLASH_START(FLASH_CFG_START_SEC),
267 FLASH_CFG_MAX_SIZE = FLASH_MAX_SIZE(FLASH_CFG_NSECS),
268
269 /* We don't support FLASH devices which can't support the full
270 * standard set of sections which we need for normal
271 * operations.
272 */
273 FLASH_MIN_SIZE = FLASH_CFG_START + FLASH_CFG_MAX_SIZE,
274
275 FLASH_FPGA_CFG_START_SEC = 15,
276 FLASH_FPGA_CFG_START = FLASH_START(FLASH_FPGA_CFG_START_SEC),
277
278 /*
279 * Sectors 32-63 are reserved for FLASH failover.
280 */
281 };
282
283 #undef FLASH_START
284 #undef FLASH_MAX_SIZE
285
286 #define SGE_TIMESTAMP_S 0
287 #define SGE_TIMESTAMP_M 0xfffffffffffffffULL
288 #define SGE_TIMESTAMP_V(x) ((__u64)(x) << SGE_TIMESTAMP_S)
289 #define SGE_TIMESTAMP_G(x) (((__u64)(x) >> SGE_TIMESTAMP_S) & SGE_TIMESTAMP_M)
290
291 #define I2C_DEV_ADDR_A0 0xa0
292 #define I2C_DEV_ADDR_A2 0xa2
293 #define I2C_PAGE_SIZE 0x100
294 #define SFP_DIAG_TYPE_ADDR 0x5c
295 #define SFP_DIAG_TYPE_LEN 0x1
296 #define SFF_8472_COMP_ADDR 0x5e
297 #define SFF_8472_COMP_LEN 0x1
298 #define SFF_REV_ADDR 0x1
299 #define SFF_REV_LEN 0x1
300
301 #endif /* __T4_HW_H */