5 * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or any later version.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 FILE_LICENCE ( GPL2_OR_LATER );
27 * QLogic Linda Infiniband HCA
31 #define BITOPS_LITTLE_ENDIAN
32 #include <gpxe/bitops.h>
33 #include "qib_7220_regs.h"
37 /** A Linda GPIO register */
38 struct QIB_7220_GPIO_pb {
39 pseudo_bit_t GPIO[16];
40 pseudo_bit_t Reserved[48];
42 struct QIB_7220_GPIO {
43 PSEUDO_BIT_STRUCT ( struct QIB_7220_GPIO_pb );
46 /** A Linda general scalar register */
47 struct QIB_7220_scalar_pb {
48 pseudo_bit_t Value[64];
50 struct QIB_7220_scalar {
51 PSEUDO_BIT_STRUCT ( struct QIB_7220_scalar_pb );
54 /** Linda send per-buffer control word */
55 struct QIB_7220_SendPbc_pb {
56 pseudo_bit_t LengthP1_toibc[11];
57 pseudo_bit_t Reserved1[4];
58 pseudo_bit_t LengthP1_trigger[11];
59 pseudo_bit_t Reserved2[3];
60 pseudo_bit_t TestEbp[1];
63 pseudo_bit_t Reserved3[31];
66 struct QIB_7220_SendPbc {
67 PSEUDO_BIT_STRUCT ( struct QIB_7220_SendPbc_pb );
70 /** Linda send buffer availability */
71 struct QIB_7220_SendBufAvail_pb {
72 pseudo_bit_t InUseCheck[144][2];
73 pseudo_bit_t Reserved[32];
75 struct QIB_7220_SendBufAvail {
76 PSEUDO_BIT_STRUCT ( struct QIB_7220_SendBufAvail_pb );
79 /** DMA alignment for send buffer availability */
80 #define LINDA_SENDBUFAVAIL_ALIGN 64
82 /** A Linda eager receive descriptor */
83 struct QIB_7220_RcvEgr_pb {
84 pseudo_bit_t Addr[37];
85 pseudo_bit_t BufSize[3];
86 pseudo_bit_t Reserved[24];
88 struct QIB_7220_RcvEgr {
89 PSEUDO_BIT_STRUCT ( struct QIB_7220_RcvEgr_pb );
92 /** Linda receive header flags */
93 struct QIB_7220_RcvHdrFlags_pb {
94 pseudo_bit_t PktLen[11];
95 pseudo_bit_t RcvType[3];
96 pseudo_bit_t SoftB[1];
97 pseudo_bit_t SoftA[1];
98 pseudo_bit_t EgrIndex[12];
99 pseudo_bit_t Reserved1[3];
100 pseudo_bit_t UseEgrBfr[1];
101 pseudo_bit_t RcvSeq[4];
102 pseudo_bit_t HdrqOffset[11];
103 pseudo_bit_t Reserved2[8];
104 pseudo_bit_t IBErr[1];
105 pseudo_bit_t MKErr[1];
106 pseudo_bit_t TIDErr[1];
107 pseudo_bit_t KHdrErr[1];
108 pseudo_bit_t MTUErr[1];
109 pseudo_bit_t LenErr[1];
110 pseudo_bit_t ParityErr[1];
111 pseudo_bit_t VCRCErr[1];
112 pseudo_bit_t ICRCErr[1];
114 struct QIB_7220_RcvHdrFlags {
115 PSEUDO_BIT_STRUCT ( struct QIB_7220_RcvHdrFlags_pb );
118 /** Linda memory BAR size */
119 #define LINDA_BAR0_SIZE 0x400000
121 /** Linda I2C SCL line GPIO number */
122 #define LINDA_GPIO_SCL 0
124 /** Linda I2C SDA line GPIO number */
125 #define LINDA_GPIO_SDA 1
127 /** GUID offset within EEPROM */
128 #define LINDA_EEPROM_GUID_OFFSET 3
130 /** GUID size within EEPROM */
131 #define LINDA_EEPROM_GUID_SIZE 8
133 /** Board serial number offset within EEPROM */
134 #define LINDA_EEPROM_SERIAL_OFFSET 12
136 /** Board serial number size within EEPROM */
137 #define LINDA_EEPROM_SERIAL_SIZE 12
139 /** Maximum number of send buffers used
141 * This is a policy decision. Must be less than or equal to the total
142 * number of send buffers supported by the hardware (128).
144 #define LINDA_MAX_SEND_BUFS 32
146 /** Linda send buffer size */
147 #define LINDA_SEND_BUF_SIZE 4096
149 /** Number of contexts (including kernel context)
151 * This is a policy decision. Must be 5, 9 or 17.
153 #define LINDA_NUM_CONTEXTS 5
155 /** PortCfg values for different numbers of contexts */
157 LINDA_PORTCFG_5CTX = 0,
158 LINDA_PORTCFG_9CTX = 1,
159 LINDA_PORTCFG_17CTX = 2,
162 /** PortCfg values for different numbers of contexts */
163 #define LINDA_EAGER_ARRAY_SIZE_5CTX_0 2048
164 #define LINDA_EAGER_ARRAY_SIZE_5CTX_OTHER 4096
165 #define LINDA_EAGER_ARRAY_SIZE_9CTX_0 2048
166 #define LINDA_EAGER_ARRAY_SIZE_9CTX_OTHER 2048
167 #define LINDA_EAGER_ARRAY_SIZE_17CTX_0 2048
168 #define LINDA_EAGER_ARRAY_SIZE_17CTX_OTHER 1024
170 /** Eager buffer required alignment */
171 #define LINDA_EAGER_BUFFER_ALIGN 2048
173 /** Eager buffer size encodings */
174 enum linda_eager_buffer_size {
175 LINDA_EAGER_BUFFER_NONE = 0,
176 LINDA_EAGER_BUFFER_2K = 1,
177 LINDA_EAGER_BUFFER_4K = 2,
178 LINDA_EAGER_BUFFER_8K = 3,
179 LINDA_EAGER_BUFFER_16K = 4,
180 LINDA_EAGER_BUFFER_32K = 5,
181 LINDA_EAGER_BUFFER_64K = 6,
184 /** Number of RX headers per context
186 * This is a policy decision.
188 #define LINDA_RECV_HEADER_COUNT 8
190 /** Maximum size of each RX header
192 * This is a policy decision. Must be divisible by 4.
194 #define LINDA_RECV_HEADER_SIZE 96
196 /** Total size of an RX header ring */
197 #define LINDA_RECV_HEADERS_SIZE \
198 ( LINDA_RECV_HEADER_SIZE * LINDA_RECV_HEADER_COUNT )
200 /** RX header alignment */
201 #define LINDA_RECV_HEADERS_ALIGN 64
205 * This is a policy decision. Must be a valid eager buffer size.
207 #define LINDA_RECV_PAYLOAD_SIZE 2048
209 /** QPN used for Infinipath Packets
211 * This is a policy decision. Must have bit 0 clear. Must not be a
212 * QPN that we will use.
214 #define LINDA_QP_IDETH 0xdead0
216 /** Maximum time for wait for external parallel bus request, in us */
217 #define LINDA_EPB_REQUEST_MAX_WAIT_US 500
219 /** Maximum time for wait for external parallel bus transaction, in us */
220 #define LINDA_EPB_XACT_MAX_WAIT_US 500
222 /** Linda external parallel bus chip selects */
223 #define LINDA_EPB_CS_SERDES 1
224 #define LINDA_EPB_CS_UC 2
226 /** Linda external parallel bus read/write operations */
227 #define LINDA_EPB_WRITE 0
228 #define LINDA_EPB_READ 1
230 /** Linda external parallel bus register addresses */
231 #define LINDA_EPB_ADDRESS( _channel, _element, _reg ) \
232 ( (_element) | ( (_channel) << 4 ) | ( (_reg) << 9 ) )
233 #define LINDA_EPB_ADDRESS_CHANNEL( _address ) ( ( (_address) >> 4 ) & 0x1f )
234 #define LINDA_EPB_ADDRESS_ELEMENT( _address ) ( ( (_address) >> 0 ) & 0x0f )
235 #define LINDA_EPB_ADDRESS_REG( _address ) ( ( (_address) >> 9 ) & 0x3f )
237 /** Linda external parallel bus locations
239 * The location is used by the driver to encode both the chip select
240 * and the EPB address.
242 #define LINDA_EPB_LOC( _cs, _channel, _element, _reg) \
243 ( ( (_cs) << 16 ) | LINDA_EPB_ADDRESS ( _channel, _element, _reg ) )
244 #define LINDA_EPB_LOC_ADDRESS( _loc ) ( (_loc) & 0xffff )
245 #define LINDA_EPB_LOC_CS( _loc ) ( (_loc) >> 16 )
247 /** Linda external parallel bus microcontroller register addresses */
248 #define LINDA_EPB_UC_CHANNEL 6
249 #define LINDA_EPB_UC_LOC( _reg ) \
250 LINDA_EPB_LOC ( LINDA_EPB_CS_UC, LINDA_EPB_UC_CHANNEL, 0, (_reg) )
251 #define LINDA_EPB_UC_CTL LINDA_EPB_UC_LOC ( 0 )
252 #define LINDA_EPB_UC_CTL_WRITE 1
253 #define LINDA_EPB_UC_CTL_READ 2
254 #define LINDA_EPB_UC_ADDR_LO LINDA_EPB_UC_LOC ( 2 )
255 #define LINDA_EPB_UC_ADDR_HI LINDA_EPB_UC_LOC ( 3 )
256 #define LINDA_EPB_UC_DATA LINDA_EPB_UC_LOC ( 4 )
257 #define LINDA_EPB_UC_CHUNK_SIZE 64
259 extern uint8_t linda_ib_fw[8192];
261 /** Maximum time to wait for "trim done" signal, in ms */
262 #define LINDA_TRIM_DONE_MAX_WAIT_MS 1000
264 /** Linda link states */
265 enum linda_link_state {
266 LINDA_LINK_STATE_DOWN = 0,
267 LINDA_LINK_STATE_INIT = 1,
268 LINDA_LINK_STATE_ARM = 2,
269 LINDA_LINK_STATE_ACTIVE = 3,
270 LINDA_LINK_STATE_ACT_DEFER = 4,
273 /** Maximum time to wait for link state changes, in us */
274 #define LINDA_LINK_STATE_MAX_WAIT_US 20
276 #endif /* _LINDA_H */