1 |
/* |
2 |
* Cisco C3600 simulation platform. |
3 |
* Copyright (c) 2006 Christophe Fillot (cf@utc.fr) |
4 |
* |
5 |
* NM-16ESW ethernet switch module (experimental!) |
6 |
* |
7 |
* It's an attempt of proof of concept, so not optimized at all at this time. |
8 |
* Only L2 switching will be managed (no L3 at all). |
9 |
* |
10 |
* To do next: QoS features (CoS/DSCP handling). |
11 |
*/ |
12 |
|
13 |
#include <stdio.h> |
14 |
#include <stdlib.h> |
15 |
#include <string.h> |
16 |
#include <stdarg.h> |
17 |
#include <unistd.h> |
18 |
#include <time.h> |
19 |
#include <errno.h> |
20 |
#include <assert.h> |
21 |
|
22 |
#include "utils.h" |
23 |
#include "net.h" |
24 |
#include "net_io.h" |
25 |
#include "ptask.h" |
26 |
#include "dev_am79c971.h" |
27 |
#include "dev_c3600.h" |
28 |
#include "dev_c3600_bay.h" |
29 |
|
30 |
/* Debugging flags */ |
31 |
#define DEBUG_ACCESS 0 |
32 |
#define DEBUG_UNKNOWN 0 |
33 |
#define DEBUG_MII 0 |
34 |
#define DEBUG_MEM 0 |
35 |
#define DEBUG_REG 0 |
36 |
#define DEBUG_TRANSMIT 0 |
37 |
#define DEBUG_RECEIVE 0 |
38 |
#define DEBUG_FORWARD 0 |
39 |
#define DEBUG_MIRROR 0 |
40 |
#define DEBUG_ARL 0 |
41 |
|
42 |
/* Invalid VLAN value */ |
43 |
#define VLAN_INVALID 0xFFF |
44 |
|
45 |
/* Maximum packet size */ |
46 |
#define BCM5600_MAX_PKT_SIZE 2048 |
47 |
|
48 |
/* PCI vendor/product codes */ |
49 |
#define BCM5605_PCI_VENDOR_ID 0x14e4 |
50 |
#define BCM5605_PCI_PRODUCT_ID 0x5605 |
51 |
|
52 |
/* "S-channel" commands */ |
53 |
#define BCM5600_SCHAN_CMD_LINKSCAN 0x13 |
54 |
#define BCM5600_SCHAN_CMD_EXEC 0x80 |
55 |
#define BCM5600_SCHAN_CMD_READ_MII 0x90 |
56 |
#define BCM5600_SCHAN_CMD_WRITE_MII 0x91 |
57 |
|
58 |
/* Opcodes */ |
59 |
#define BCM5600_OP_BP_WARN_STATUS 0x01 |
60 |
#define BCM5600_OP_BP_DISCARD_STATUS 0x02 |
61 |
#define BCM5600_OP_COS_QSTAT_NOTIFY 0x03 |
62 |
#define BCM5600_OP_HOL_STAT_NOTIFY 0x04 |
63 |
#define BCM5600_OP_GBP_FULL_NOTIFY 0x05 |
64 |
#define BCM5600_OP_GBP_AVAIL_NOTIFY 0x06 |
65 |
#define BCM5600_OP_READ_MEM_CMD 0x07 |
66 |
#define BCM5600_OP_READ_MEM_ACK 0x08 |
67 |
#define BCM5600_OP_WRITE_MEM_CMD 0x09 |
68 |
#define BCM5600_OP_WRITE_MEM_ACK 0x0A |
69 |
#define BCM5600_OP_READ_REG_CMD 0x0B |
70 |
#define BCM5600_OP_READ_REG_ACK 0x0C |
71 |
#define BCM5600_OP_WRITE_REG_CMD 0x0D |
72 |
#define BCM5600_OP_WRITE_REG_ACK 0x0E |
73 |
#define BCM5600_OP_ARL_INSERT_CMD 0x0F |
74 |
#define BCM5600_OP_ARL_INSERT_DONE 0x10 |
75 |
#define BCM5600_OP_ARL_DELETE_CMD 0x11 |
76 |
#define BCM5600_OP_ARL_DELETE_DONE 0x12 |
77 |
#define BCM5600_OP_LINKSTAT_NOTIFY 0x13 |
78 |
#define BCM5600_OP_MEM_FAIL_NOTIFY 0x14 |
79 |
#define BCM5600_OP_INIT_CFAP 0x15 |
80 |
#define BCM5600_OP_INIT_SFAP 0x16 |
81 |
#define BCM5600_OP_ENTER_DEBUG_MODE 0x17 |
82 |
#define BCM5600_OP_EXIT_DEBUG_MODE 0x18 |
83 |
#define BCM5600_OP_ARL_LOOKUP_CMD 0x19 |
84 |
|
85 |
/* Command details */ |
86 |
#define BCM5600_CMD_OP_MASK 0xFC000000 |
87 |
#define BCM5600_CMD_OP_SHIFT 26 |
88 |
#define BCM5600_CMD_DST_MASK 0x03F00000 |
89 |
#define BCM5600_CMD_DST_SHIFT 20 |
90 |
#define BCM5600_CMD_SRC_MASK 0x000FC000 |
91 |
#define BCM5600_CMD_SRC_SHIFT 14 |
92 |
#define BCM5600_CMD_LEN_MASK 0x00003F80 |
93 |
#define BCM5600_CMD_LEN_SHIFT 7 |
94 |
#define BCM5600_CMD_EBIT_MASK 0x00000040 |
95 |
#define BCM5600_CMD_EBIT_SHIFT 6 |
96 |
#define BCM5600_CMD_ECODE_MASK 0x00000030 |
97 |
#define BCM5600_CMD_ECODE_SHIFT 4 |
98 |
#define BCM5600_CMD_COS_MASK 0x0000000E |
99 |
#define BCM5600_CMD_COS_SHIFT 1 |
100 |
#define BCM5600_CMD_CPU_MASK 0x00000001 |
101 |
#define BCM5600_CMD_CPU_SHIFT 0 |
102 |
|
103 |
/* Memory zones */ |
104 |
#define BCM5600_ADDR_ARLCNT 0x01000000 |
105 |
#define BCM5600_ADDR_ARL0 0x02000000 |
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#define BCM5600_ADDR_ARL1 0x02100000 |
107 |
#define BCM5600_ADDR_ARL2 0x02200000 |
108 |
#define BCM5600_ADDR_PTABLE0 0x03000000 |
109 |
#define BCM5600_ADDR_PTABLE1 0x03100000 |
110 |
#define BCM5600_ADDR_PTABLE2 0x03200000 |
111 |
#define BCM5600_ADDR_VTABLE0 0x05000000 |
112 |
#define BCM5600_ADDR_VTABLE1 0x05100000 |
113 |
#define BCM5600_ADDR_VTABLE2 0x05200000 |
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#define BCM5600_ADDR_TTR0 0x06000000 |
115 |
#define BCM5600_ADDR_TBMAP0 0x06010000 |
116 |
#define BCM5600_ADDR_TTR1 0x06100000 |
117 |
#define BCM5600_ADDR_TBMAP1 0x06110000 |
118 |
#define BCM5600_ADDR_TTR2 0x06200000 |
119 |
#define BCM5600_ADDR_TBMAP2 0x06210000 |
120 |
#define BCM5600_ADDR_IMASK0 0x07000000 |
121 |
#define BCM5600_ADDR_IRULE0 0x07020000 |
122 |
#define BCM5600_ADDR_IMASK1 0x07100000 |
123 |
#define BCM5600_ADDR_IRULE1 0x07120000 |
124 |
#define BCM5600_ADDR_IMASK2 0x07200000 |
125 |
#define BCM5600_ADDR_IRULE2 0x07220000 |
126 |
#define BCM5600_ADDR_GIMASK 0x07300000 |
127 |
#define BCM5600_ADDR_GIRULE 0x07320000 |
128 |
#define BCM5600_ADDR_MARL0 0x08000000 |
129 |
#define BCM5600_ADDR_MARL1 0x08100000 |
130 |
#define BCM5600_ADDR_MARL2 0x08200000 |
131 |
#define BCM5600_ADDR_L3 0x09000000 |
132 |
#define BCM5600_ADDR_DEFIP 0x09010000 |
133 |
#define BCM5600_ADDR_L3INTF 0x09020000 |
134 |
#define BCM5600_ADDR_IPMC 0x09030000 |
135 |
#define BCM5600_ADDR_CBPHDR 0x0A600000 |
136 |
#define BCM5600_ADDR_CAB0 0x0A610000 |
137 |
#define BCM5600_ADDR_CAB1 0x0A620000 |
138 |
#define BCM5600_ADDR_CAB2 0x0A630000 |
139 |
#define BCM5600_ADDR_CAB3 0x0A640000 |
140 |
#define BCM5600_ADDR_CCP 0x0A650000 |
141 |
#define BCM5600_ADDR_PPP 0x0A660000 |
142 |
#define BCM5600_ADDR_CFAP 0x0A670000 |
143 |
#define BCM5600_ADDR_SFAP 0x0A680000 |
144 |
#define BCM5600_ADDR_CBPDATA0 0x0A6A0000 |
145 |
#define BCM5600_ADDR_CBPDATA1 0x0A6B0000 |
146 |
#define BCM5600_ADDR_CBPDATA2 0x0A6C0000 |
147 |
#define BCM5600_ADDR_CBPDATA3 0x0A6D0000 |
148 |
#define BCM5600_ADDR_PID 0x0A900000 |
149 |
#define BCM5600_ADDR_XQ_BASE 0x0B600000 |
150 |
#define BCM5600_ADDR_GBP 0x12000000 |
151 |
|
152 |
/* Number of "Data Words" */ |
153 |
#define BCM5600_DW_MAX 32 |
154 |
|
155 |
/* === VTABLE definitions === */ |
156 |
/* Word 0 */ |
157 |
#define BCM5600_VTABLE_VLAN_TAG_MASK 0x00000FFF |
158 |
|
159 |
/* Word 1: Port bitmap */ |
160 |
#define BCM5600_VTABLE_PORT_BMAP_MASK 0x1FFFFFFF |
161 |
|
162 |
/* Word 2: Untagged port bitmap */ |
163 |
#define BCM5600_VTABLE_UT_PORT_BMAP_MASK 0x1FFFFFFF |
164 |
|
165 |
/* Word 3: Module bitmap */ |
166 |
#define BCM5600_VTABLE_MOD_BMAP_MASK 0xFFFFFFFF |
167 |
|
168 |
/* === PTABLE definitions === */ |
169 |
/* Word 0 */ |
170 |
#define BCM5600_PTABLE_VLAN_TAG_MASK 0x00000FFF |
171 |
#define BCM5600_PTABLE_SP_ST_MASK 0x00003000 |
172 |
#define BCM5600_PTABLE_SP_ST_SHIFT 12 |
173 |
#define BCM5600_PTABLE_PRT_DIS_MASK 0x000fc000 |
174 |
#define BCM5600_PTABLE_PRT_DIS_SHIFT 14 |
175 |
#define BCM5600_PTABLE_JUMBO_FLAG 0x00100000 |
176 |
#define BCM5600_PTABLE_RTAG_MASK 0x00E00000 |
177 |
#define BCM5600_PTABLE_RTAG_SHIFT 21 |
178 |
#define BCM5600_PTABLE_TGID_MASK 0x07000000 |
179 |
#define BCM5600_PTABLE_TGID_SHIFT 24 |
180 |
#define BCM5600_PTABLE_TRUNK_FLAG 0x08000000 |
181 |
#define BCM5600_PTABLE_CPU_FLAG 0x10000000 |
182 |
#define BCM5600_PTABLE_PTYPE_MASK 0x60000000 |
183 |
#define BCM5600_PTABLE_PTYPE_SHIFT 29 |
184 |
#define BCM5600_PTABLE_BPDU_FLAG 0x80000000 |
185 |
|
186 |
/* Word 1 */ |
187 |
#define BCM5600_PTABLE_PORT_BMAP_MASK 0x1FFFFFFF |
188 |
#define BCM5600_PTABLE_MI_FLAG 0x20000000 |
189 |
#define BCM5600_PTABLE_CML_MASK 0xC0000000 |
190 |
#define BCM5600_PTABLE_CML_SHIFT 30 |
191 |
|
192 |
/* Word 2 */ |
193 |
#define BCM5600_PTABLE_UT_PORT_BMAP_MASK 0x1FFFFFFF |
194 |
|
195 |
/* Word 4 */ |
196 |
#define BCM5600_PTABLE_DSCP_MASK 0x0000003F |
197 |
#define BCM5600_PTABLE_DSCP_SHIFT 0 |
198 |
#define BCM5600_PTABLE_DSE_MODE_MASK 0x000000C0 |
199 |
#define BCM5600_PTABLE_DSE_MODE_SHIFT 6 |
200 |
#define BCM5600_PTABLE_RPE_FLAG 0x00000100 |
201 |
#define BCM5600_PTABLE_PRI_MASK 0x00000E00 |
202 |
#define BCM5600_PTABLE_PRI_SHIFT 9 |
203 |
#define BCM5600_PTABLE_L3_DIS_FLAG 0x00001000 |
204 |
|
205 |
|
206 |
/* === ARL (Addess Resolution Logic) definitions === */ |
207 |
/* Word 0: MAC address LSB */ |
208 |
|
209 |
/* Word 1 */ |
210 |
#define BCM5600_ARL_MAC_MSB_MASK 0x0000FFFF |
211 |
#define BCM5600_ARL_VLAN_TAG_MASK 0x0FFF0000 |
212 |
#define BCM5600_ARL_VLAN_TAG_SHIFT 16 |
213 |
#define BCM5600_ARL_COS_DST_MASK 0x70000000 |
214 |
#define BCM5600_ARL_COS_DST_SHIFT 28 |
215 |
#define BCM5600_ARL_CPU_FLAG 0x80000000 |
216 |
|
217 |
/* Word 2 */ |
218 |
#define BCM5600_ARL_L3_FLAG 0x00000001 |
219 |
#define BCM5600_ARL_SD_DIS_MASK 0x00000006 |
220 |
#define BCM5600_ARL_SD_DIS_SHIFT 1 |
221 |
#define BCM5600_ARL_ST_FLAG 0x00000008 |
222 |
#define BCM5600_ARL_HIT_FLAG 0x00000010 |
223 |
#define BCM5600_ARL_COS_SRC_MASK 0x000000E0 |
224 |
#define BCM5600_ARL_COS_SRC_SHIFT 5 |
225 |
#define BCM5600_ARL_TRUNK_FLAG 0x00000100 |
226 |
#define BCM5600_ARL_TGID_MASK 0x00000E00 |
227 |
#define BCM5600_ARL_TGID_SHIFT 9 |
228 |
#define BCM5600_ARL_RTAG_MASK 0x00007000 |
229 |
#define BCM5600_ARL_RTAG_SHIFT 12 |
230 |
#define BCM5600_ARL_PORT_MASK 0x001F8000 |
231 |
#define BCM5600_ARL_PORT_SHIFT 15 |
232 |
#define BCM5600_ARL_SCP_FLAG 0x00200000 |
233 |
#define BCM5600_ARL_MOD_ID_MASK 0x07C00000 |
234 |
#define BCM5600_ARL_MOD_ID_SHIFT 22 |
235 |
|
236 |
/* === Multicast ARL definitions === */ |
237 |
/* Word 0: MAC address LSB */ |
238 |
|
239 |
/* Word 1 */ |
240 |
#define BCM5600_MARL_MAC_MSB_MASK 0x0000FFFF |
241 |
#define BCM5600_MARL_VLAN_TAG_MASK 0x0FFF0000 |
242 |
#define BCM5600_MARL_VLAN_TAG_SHIFT 16 |
243 |
#define BCM5600_MARL_COS_DST_MASK 0x70000000 |
244 |
#define BCM5600_MARL_COS_DST_SHIFT 28 |
245 |
|
246 |
/* Word 2 */ |
247 |
#define BCM5600_MARL_PORT_BMAP_MASK 0x1FFFFFFF |
248 |
|
249 |
/* Word 3 */ |
250 |
#define BCM5600_MARL_UT_PORT_BMAP_MASK 0x1FFFFFFF |
251 |
|
252 |
/* Word 4 */ |
253 |
#define BCM5600_MARL_MOD_BMAP_MASK 0xFFFFFFFF |
254 |
|
255 |
/* === Trunk bitmap === */ |
256 |
#define BCM5600_TBMAP_MASK 0x0FFFFFFF |
257 |
|
258 |
/* === Trunk table === */ |
259 |
/* Word 0 */ |
260 |
#define BCM5600_TTR_TP0_MASK 0x0000003F |
261 |
#define BCM5600_TTR_TP0_SHIFT 0 |
262 |
#define BCM5600_TTR_TP1_MASK 0x00000FC0 |
263 |
#define BCM5600_TTR_TP1_SHIFT 6 |
264 |
#define BCM5600_TTR_TP2_MASK 0x0003F000 |
265 |
#define BCM5600_TTR_TP2_SHIFT 12 |
266 |
#define BCM5600_TTR_TP3_MASK 0x00FC0000 |
267 |
#define BCM5600_TTR_TP3_SHIFT 18 |
268 |
#define BCM5600_TTR_TP4_MASK 0x3F000000 |
269 |
#define BCM5600_TTR_TP4_SHIFT 24 |
270 |
|
271 |
/* Word 1 */ |
272 |
#define BCM5600_TTR_TP5_MASK 0x0000003F |
273 |
#define BCM5600_TTR_TP5_SHIFT 0 |
274 |
#define BCM5600_TTR_TP6_MASK 0x00000FC0 |
275 |
#define BCM5600_TTR_TP6_SHIFT 6 |
276 |
#define BCM5600_TTR_TP7_MASK 0x0003F000 |
277 |
#define BCM5600_TTR_TP7_SHIFT 12 |
278 |
|
279 |
#define BCM5600_TTR_TG_SIZE_MASK 0x003C0000 |
280 |
#define BCM5600_TTR_TG_SIZE_SHIFT 18 |
281 |
|
282 |
/* Trunks (port aggregation) */ |
283 |
#define BCM5600_MAX_TRUNKS 6 |
284 |
#define BCM5600_MAX_PORTS_PER_TRUNK 8 |
285 |
|
286 |
/* ======================================================================= */ |
287 |
|
288 |
/* Transmit descriptor size */ |
289 |
#define BCM5600_TXD_SIZE 32 |
290 |
#define BCM5600_TXD_RING_CONT 0x80000000 /* ring is continuing */ |
291 |
#define BCM5600_TXD_UNKNOWN 0x04000000 /* valid packet (?) */ |
292 |
#define BCM5600_TXD_NEOP 0x00040000 /* end of packet if not set */ |
293 |
|
294 |
/* Receive descriptor size */ |
295 |
#define BCM5600_RXD_SIZE 32 |
296 |
#define BCM5600_RXD_RING_CONT 0x80000000 /* ring is continuing */ |
297 |
#define BCM5600_RXD_UNKNOWN 0x00040000 /* unknown */ |
298 |
|
299 |
/* Interrupt sources */ |
300 |
#define BCM5600_INTR_STAT_ITER_DONE 0x00100000 /* Unknown */ |
301 |
#define BCM5600_INTR_RX_UNDERRUN 0x00000400 /* RX ring underrun */ |
302 |
#define BCM5600_INTR_RX_AVAIL 0x00000200 /* packet available */ |
303 |
#define BCM5600_INTR_TX_UNDERRUN 0x00000100 /* TX ring underrun */ |
304 |
#define BCM5600_INTR_LINKSTAT_MOD 0x00000010 /* Link status modified */ |
305 |
|
306 |
/* ======================================================================= */ |
307 |
|
308 |
/* Port Mirroring */ |
309 |
#define BCM5600_MIRROR_ENABLE 0x40 |
310 |
#define BCM5600_MIRROR_PORT_MASK 0x3F |
311 |
|
312 |
/* ======================================================================= */ |
313 |
|
314 |
#define BCM5600_REG_HASH_SIZE 8192 |
315 |
|
316 |
/* BCM5600 register */ |
317 |
struct bcm5600_reg { |
318 |
m_uint32_t addr; |
319 |
m_uint32_t value; |
320 |
struct bcm5600_reg *next; |
321 |
}; |
322 |
|
323 |
/* BCM5600 table */ |
324 |
struct bcm5600_table { |
325 |
char *name; |
326 |
long offset; |
327 |
m_uint32_t addr; |
328 |
u_int min_index,max_index; |
329 |
u_int nr_words; |
330 |
}; |
331 |
|
332 |
/* BCM5600 in-transit packet */ |
333 |
struct bcm5600_pkt { |
334 |
/* Received packet data */ |
335 |
u_char *pkt; |
336 |
ssize_t pkt_len; |
337 |
|
338 |
/* Rewritten packet (802.1Q tag pushed or poped) */ |
339 |
u_char *rewr_pkt; |
340 |
int rewrite_done; |
341 |
|
342 |
/* Original VLAN (-1 for untagged packet) and Real VLAN */ |
343 |
int orig_vlan,real_vlan; |
344 |
|
345 |
/* VLAN entry */ |
346 |
m_uint32_t *vlan_entry; |
347 |
|
348 |
/* Ingress Port and Egress Port bitmap */ |
349 |
u_int ingress_port,egress_bitmap,egress_ut_bitmap; |
350 |
u_int egress_filter_bitmap; |
351 |
|
352 |
/* RX descriptor */ |
353 |
m_uint32_t rdes[4]; |
354 |
|
355 |
/* Packet sent to CPU */ |
356 |
u_int sent_to_cpu; |
357 |
}; |
358 |
|
359 |
/* BCM5600 physical port */ |
360 |
struct bcm5600_port { |
361 |
netio_desc_t *nio; |
362 |
u_int id; |
363 |
char name[32]; |
364 |
|
365 |
/* Other info ? */ |
366 |
}; |
367 |
|
368 |
/* NM-16ESW private data */ |
369 |
struct nm_16esw_data { |
370 |
char *name; |
371 |
u_int nr_port; |
372 |
|
373 |
vm_instance_t *vm; |
374 |
struct vdevice *dev; |
375 |
struct pci_device *pci_dev; |
376 |
|
377 |
pthread_mutex_t lock; |
378 |
|
379 |
/* S-channel command and command result */ |
380 |
m_uint32_t schan_cmd,schan_cmd_res; |
381 |
|
382 |
/* Data Words */ |
383 |
m_uint32_t dw[BCM5600_DW_MAX]; |
384 |
|
385 |
/* Interrupt mask */ |
386 |
m_uint32_t intr_mask; |
387 |
|
388 |
/* MII registers */ |
389 |
m_uint16_t mii_regs[64][32]; |
390 |
m_uint32_t mii_input,mii_output; |
391 |
u_int mii_intr; |
392 |
|
393 |
/* RX/TX rings addresses */ |
394 |
m_uint32_t rx_ring_addr,tx_ring_addr; |
395 |
m_uint32_t tx_current,tx_end_scan; |
396 |
m_uint32_t rx_current,rx_end_scan; |
397 |
|
398 |
/* TX ring scanner task id */ |
399 |
ptask_id_t tx_tid; |
400 |
|
401 |
/* TX buffer */ |
402 |
u_char tx_buffer[BCM5600_MAX_PKT_SIZE]; |
403 |
u_int tx_bufsize; |
404 |
|
405 |
/* Port Mirroring */ |
406 |
u_int mirror_dst_port; |
407 |
u_int mirror_egress_ports; |
408 |
|
409 |
/* Registers hash table */ |
410 |
struct bcm5600_reg *reg_hash_table[BCM5600_REG_HASH_SIZE]; |
411 |
|
412 |
/* Most used tables... */ |
413 |
struct bcm5600_table *t_ptable,*t_vtable; |
414 |
struct bcm5600_table *t_arl,*t_marl; |
415 |
struct bcm5600_table *t_tbmap,*t_ttr; |
416 |
|
417 |
/* Ports (only 16 are "real" and usable) */ |
418 |
struct bcm5600_port ports[32]; |
419 |
|
420 |
/* CPU port */ |
421 |
u_int cpu_port; |
422 |
|
423 |
/* Current egress port of all trunks */ |
424 |
u_int trunk_last_egress_port[BCM5600_MAX_TRUNKS]; |
425 |
|
426 |
/* ARL (Address Resolution Logic) Table */ |
427 |
m_uint32_t *arl_table; |
428 |
|
429 |
/* Multicast ARL Table */ |
430 |
m_uint32_t *marl_table; |
431 |
|
432 |
/* VTABLE (VLAN Table) */ |
433 |
m_uint32_t *vtable; |
434 |
|
435 |
/* Trunks */ |
436 |
m_uint32_t *ttr,*tbmap; |
437 |
|
438 |
/* PTABLE (Port Table) */ |
439 |
m_uint32_t *ptable; |
440 |
}; |
441 |
|
442 |
/* NM-16ESW Port physical port mapping table (Cisco => BCM) */ |
443 |
static int nm16esw_port_mapping[] = { |
444 |
2, 0, 6, 4, 10, 8, 14, 12, 3, 1, 7, 5, 11, 9, 15, 13, |
445 |
}; |
446 |
|
447 |
/* NM-16ESW: 16 Ethernet port switch module */ |
448 |
static m_uint16_t eeprom_c3600_nm_16esw_data[] = { |
449 |
0x04FF, 0x4002, 0xA941, 0x0100, 0xC046, 0x0320, 0x003B, 0x3401, |
450 |
0x4245, 0x3080, 0x0000, 0x0000, 0x0203, 0xC18B, 0x464F, 0x4330, |
451 |
0x3931, 0x3132, 0x454E, 0x3803, 0x0081, 0x0000, 0x0000, 0x0400, |
452 |
0xCF06, 0x0013, 0x1A1D, 0x0BD1, 0x4300, 0x11FF, 0xFFFF, 0xFFFF, |
453 |
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, |
454 |
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, |
455 |
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, |
456 |
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, |
457 |
}; |
458 |
|
459 |
static const struct c3600_eeprom eeprom_c3600_nm_16esw = { |
460 |
"NM-16ESW", (m_uint16_t *)eeprom_c3600_nm_16esw_data, |
461 |
sizeof(eeprom_c3600_nm_16esw_data)/2, |
462 |
}; |
463 |
|
464 |
/* Log a BCM message */ |
465 |
#define BCM_LOG(d,msg...) vm_log((d)->vm,(d)->name,msg) |
466 |
|
467 |
/* Lock/Unlock primitives */ |
468 |
#define BCM_LOCK(d) pthread_mutex_lock(&(d)->lock) |
469 |
#define BCM_UNLOCK(d) pthread_mutex_unlock(&(d)->lock) |
470 |
|
471 |
/* Trunk group info */ |
472 |
struct bcm5600_tg_info { |
473 |
u_int index,mask,shift; |
474 |
}; |
475 |
|
476 |
static struct bcm5600_tg_info tg_info[8] = { |
477 |
{ 0, BCM5600_TTR_TP0_MASK, BCM5600_TTR_TP0_SHIFT }, |
478 |
{ 0, BCM5600_TTR_TP1_MASK, BCM5600_TTR_TP1_SHIFT }, |
479 |
{ 0, BCM5600_TTR_TP2_MASK, BCM5600_TTR_TP2_SHIFT }, |
480 |
{ 0, BCM5600_TTR_TP3_MASK, BCM5600_TTR_TP3_SHIFT }, |
481 |
{ 0, BCM5600_TTR_TP4_MASK, BCM5600_TTR_TP4_SHIFT }, |
482 |
{ 1, BCM5600_TTR_TP5_MASK, BCM5600_TTR_TP5_SHIFT }, |
483 |
{ 1, BCM5600_TTR_TP6_MASK, BCM5600_TTR_TP6_SHIFT }, |
484 |
{ 1, BCM5600_TTR_TP7_MASK, BCM5600_TTR_TP7_SHIFT }, |
485 |
}; |
486 |
|
487 |
/* Return port status (up or down), based on the MII register */ |
488 |
static int bcm5600_mii_port_status(struct nm_16esw_data *d,u_int port) |
489 |
{ |
490 |
u_int mii_ctrl; |
491 |
|
492 |
mii_ctrl = d->mii_regs[port][0x00]; |
493 |
|
494 |
/* Isolate bit */ |
495 |
return(!(mii_ctrl & 0x400)); |
496 |
} |
497 |
|
498 |
/* Build port status bitmap */ |
499 |
static m_uint32_t bcm5600_mii_port_status_bmp(struct nm_16esw_data *d) |
500 |
{ |
501 |
m_uint32_t bmp; |
502 |
int i; |
503 |
|
504 |
for(i=0,bmp=0;i<d->nr_port;i++) |
505 |
if (bcm5600_mii_port_status(d,i)) |
506 |
bmp |= 1 << i; |
507 |
|
508 |
return(bmp); |
509 |
} |
510 |
|
511 |
/* Read a MII register */ |
512 |
static void bcm5600_mii_read(struct nm_16esw_data *d) |
513 |
{ |
514 |
m_uint8_t port,reg; |
515 |
|
516 |
port = (d->mii_input >> 16) & 0xFF; |
517 |
reg = (d->mii_input >> 24) & 0xFF; |
518 |
|
519 |
if ((port < 32) && (reg < 32)) { |
520 |
d->mii_output = d->mii_regs[port][reg]; |
521 |
|
522 |
switch(reg) { |
523 |
case 0x00: |
524 |
d->mii_output |= 0x1000; /* autoneg */ |
525 |
break; |
526 |
case 0x01: |
527 |
if (bcm5600_mii_port_status(d,port)) |
528 |
d->mii_output = 0x782C; |
529 |
else |
530 |
d->mii_output = 0; |
531 |
break; |
532 |
case 0x02: |
533 |
d->mii_output = 0x40; |
534 |
break; |
535 |
case 0x03: |
536 |
d->mii_output = 0x61d4; |
537 |
break; |
538 |
case 0x04: |
539 |
d->mii_output = 0x1E1; |
540 |
break; |
541 |
case 0x05: |
542 |
d->mii_output = 0x41E1; |
543 |
break; |
544 |
default: |
545 |
d->mii_output = 0; |
546 |
} |
547 |
} |
548 |
} |
549 |
|
550 |
/* Write a MII register */ |
551 |
static void bcm5600_mii_write(struct nm_16esw_data *d) |
552 |
{ |
553 |
m_uint8_t port,reg; |
554 |
m_uint16_t isolation; |
555 |
|
556 |
port = (d->mii_input >> 16) & 0xFF; |
557 |
reg = (d->mii_input >> 24) & 0xFF; |
558 |
|
559 |
if ((port < 32) && (reg < 32)) |
560 |
{ |
561 |
#if DEBUG_MII |
562 |
BCM_LOG(d,"MII: port 0x%4.4x, reg 0x%2.2x: writing 0x%4.4x\n", |
563 |
port,reg,d->mii_input & 0xFFFF); |
564 |
#endif |
565 |
|
566 |
/* Check if PHY isolation status is changing */ |
567 |
if (reg == 0) { |
568 |
isolation = (d->mii_input ^ d->mii_regs[port][reg]) & 0x400; |
569 |
|
570 |
if (isolation) { |
571 |
#if DEBUG_MII |
572 |
BCM_LOG(d,"MII: port 0x%4.4x: generating IRQ\n",port); |
573 |
#endif |
574 |
d->mii_intr = TRUE; |
575 |
pci_dev_trigger_irq(d->vm,d->pci_dev); |
576 |
} |
577 |
} |
578 |
|
579 |
d->mii_regs[port][reg] = d->mii_input & 0xFFFF; |
580 |
} |
581 |
} |
582 |
|
583 |
/* Hash function for register */ |
584 |
static u_int bcm5600_reg_get_hash(m_uint32_t addr) |
585 |
{ |
586 |
return((addr ^ (addr >> 16)) & (BCM5600_REG_HASH_SIZE - 1)); |
587 |
} |
588 |
|
589 |
/* Find a register entry */ |
590 |
static struct bcm5600_reg *bcm5600_reg_find(struct nm_16esw_data *d, |
591 |
m_uint32_t addr) |
592 |
{ |
593 |
struct bcm5600_reg *reg; |
594 |
u_int h_index; |
595 |
|
596 |
h_index = bcm5600_reg_get_hash(addr); |
597 |
for(reg=d->reg_hash_table[h_index];reg;reg=reg->next) |
598 |
if (reg->addr == addr) |
599 |
return reg; |
600 |
|
601 |
return NULL; |
602 |
} |
603 |
|
604 |
/* Read a register */ |
605 |
static m_uint32_t bcm5600_reg_read(struct nm_16esw_data *d,m_uint32_t addr) |
606 |
{ |
607 |
struct bcm5600_reg *reg; |
608 |
|
609 |
if (!(reg = bcm5600_reg_find(d,addr))) |
610 |
return(0); |
611 |
|
612 |
return(reg->value); |
613 |
} |
614 |
|
615 |
/* Write a register */ |
616 |
static int bcm5600_reg_write(struct nm_16esw_data *d,m_uint32_t addr, |
617 |
m_uint32_t value) |
618 |
{ |
619 |
struct bcm5600_reg *reg; |
620 |
u_int h_index; |
621 |
|
622 |
if ((reg = bcm5600_reg_find(d,addr))) { |
623 |
reg->value = value; |
624 |
return(0); |
625 |
} |
626 |
|
627 |
/* create a new register */ |
628 |
if (!(reg = malloc(sizeof(*reg)))) |
629 |
return(-1); |
630 |
|
631 |
reg->addr = addr; |
632 |
reg->value = value; |
633 |
|
634 |
/* insert new register in hash table */ |
635 |
h_index = bcm5600_reg_get_hash(addr); |
636 |
reg->next = d->reg_hash_table[h_index]; |
637 |
d->reg_hash_table[h_index] = reg; |
638 |
|
639 |
return(0); |
640 |
} |
641 |
|
642 |
/* Register special handling */ |
643 |
static void bcm5600_reg_write_special(struct nm_16esw_data *d, |
644 |
m_uint32_t addr,m_uint32_t value) |
645 |
{ |
646 |
switch(addr) { |
647 |
case 0x80006: |
648 |
d->mirror_dst_port = value; |
649 |
break; |
650 |
|
651 |
case 0x8000d: |
652 |
d->mirror_egress_ports = value; |
653 |
break; |
654 |
} |
655 |
} |
656 |
|
657 |
/* Free memory used to store register info */ |
658 |
static void bcm5600_reg_free(struct nm_16esw_data *d) |
659 |
{ |
660 |
struct bcm5600_reg *reg,*next; |
661 |
int i; |
662 |
|
663 |
for(i=0;i<BCM5600_REG_HASH_SIZE;i++) |
664 |
for(reg=d->reg_hash_table[i];reg;reg=next) { |
665 |
next = reg->next; |
666 |
free(reg); |
667 |
} |
668 |
} |
669 |
|
670 |
/* Dump all known registers */ |
671 |
static void bcm5600_reg_dump(struct nm_16esw_data *d,int show_null) |
672 |
{ |
673 |
struct bcm5600_reg *reg; |
674 |
int i; |
675 |
|
676 |
printf("%s: dumping registers:\n",d->name); |
677 |
|
678 |
for(i=0;i<BCM5600_REG_HASH_SIZE;i++) |
679 |
for(reg=d->reg_hash_table[i];reg;reg=reg->next) { |
680 |
if (reg->value || show_null) |
681 |
printf(" 0x%8.8x: 0x%8.8x\n",reg->addr,reg->value); |
682 |
} |
683 |
} |
684 |
|
685 |
/* Fill a string buffer with all ports of the specified bitmap */ |
686 |
static char *bcm5600_port_bitmap_str(struct nm_16esw_data *d, |
687 |
char *buffer,m_uint32_t bitmap) |
688 |
{ |
689 |
char *ptr = buffer; |
690 |
int i; |
691 |
|
692 |
*ptr = 0; |
693 |
|
694 |
for(i=0;i<d->nr_port;i++) |
695 |
if (bitmap & (1 << i)) { |
696 |
ptr += sprintf(ptr,"%s ",d->ports[i].name); |
697 |
} |
698 |
|
699 |
return buffer; |
700 |
} |
701 |
|
702 |
/* BCM5600 tables */ |
703 |
#define BCM_OFFSET(x) (OFFSET(struct nm_16esw_data,x)) |
704 |
|
705 |
static struct bcm5600_table bcm5600_tables[] = { |
706 |
/* ARL tables */ |
707 |
{ "arl0", BCM_OFFSET(arl_table), BCM5600_ADDR_ARL0, 1, 8191, 3 }, |
708 |
{ "arl1", BCM_OFFSET(arl_table), BCM5600_ADDR_ARL1, 1, 8191, 3 }, |
709 |
{ "arl2", BCM_OFFSET(arl_table), BCM5600_ADDR_ARL2, 1, 8191, 3 }, |
710 |
|
711 |
/* Multicast ARL tables */ |
712 |
{ "marl0", BCM_OFFSET(marl_table), BCM5600_ADDR_MARL0, 1, 255, 5 }, |
713 |
{ "marl1", BCM_OFFSET(marl_table), BCM5600_ADDR_MARL1, 1, 255, 5 }, |
714 |
{ "marl2", BCM_OFFSET(marl_table), BCM5600_ADDR_MARL2, 1, 255, 5 }, |
715 |
|
716 |
/* PTABLE - Physical Ports */ |
717 |
{ "ptable0", BCM_OFFSET(ptable), BCM5600_ADDR_PTABLE0, 0, 31, 6 }, |
718 |
{ "ptable1", BCM_OFFSET(ptable), BCM5600_ADDR_PTABLE1, 0, 31, 6 }, |
719 |
{ "ptable2", BCM_OFFSET(ptable), BCM5600_ADDR_PTABLE2, 0, 31, 6 }, |
720 |
|
721 |
/* VTABLE - VLANs */ |
722 |
{ "vtable0", BCM_OFFSET(vtable), BCM5600_ADDR_VTABLE0, 1, 255, 4 }, |
723 |
{ "vtable1", BCM_OFFSET(vtable), BCM5600_ADDR_VTABLE1, 1, 255, 4 }, |
724 |
{ "vtable2", BCM_OFFSET(vtable), BCM5600_ADDR_VTABLE2, 1, 255, 4 }, |
725 |
|
726 |
/* TTR */ |
727 |
{ "ttr0", BCM_OFFSET(ttr), BCM5600_ADDR_TTR0, 0, 5, 3 }, |
728 |
{ "ttr1", BCM_OFFSET(ttr), BCM5600_ADDR_TTR1, 0, 5, 3 }, |
729 |
{ "ttr2", BCM_OFFSET(ttr), BCM5600_ADDR_TTR2, 0, 5, 3 }, |
730 |
|
731 |
/* TBMAP */ |
732 |
{ "tbmap0", BCM_OFFSET(tbmap), BCM5600_ADDR_TBMAP0, 0, 5, 1 }, |
733 |
{ "tbmap1", BCM_OFFSET(tbmap), BCM5600_ADDR_TBMAP1, 0, 5, 1 }, |
734 |
{ "tbmap2", BCM_OFFSET(tbmap), BCM5600_ADDR_TBMAP2, 0, 5, 1 }, |
735 |
|
736 |
{ NULL, -1, 0, 0, 0 }, |
737 |
}; |
738 |
|
739 |
/* Get table size (in number of words) */ |
740 |
static inline u_int bcm5600_table_get_size(struct bcm5600_table *table) |
741 |
{ |
742 |
return(table->nr_words * (table->max_index + 1)); |
743 |
} |
744 |
|
745 |
/* Create automatically tables */ |
746 |
static int bcm5600_table_create(struct nm_16esw_data *d) |
747 |
{ |
748 |
struct bcm5600_table *table; |
749 |
m_uint32_t *array; |
750 |
size_t nr_words; |
751 |
int i; |
752 |
|
753 |
for(i=0;bcm5600_tables[i].name;i++) |
754 |
{ |
755 |
table = &bcm5600_tables[i]; |
756 |
nr_words = bcm5600_table_get_size(table); |
757 |
|
758 |
if (!(array = calloc(nr_words,sizeof(m_uint32_t)))) { |
759 |
fprintf(stderr,"BCM5600: unable to create table '%s'\n",table->name); |
760 |
return(-1); |
761 |
} |
762 |
|
763 |
*(PTR_ADJUST(m_uint32_t **,d,table->offset)) = array; |
764 |
} |
765 |
|
766 |
return(0); |
767 |
} |
768 |
|
769 |
/* Free tables */ |
770 |
static void bcm5600_table_free(struct nm_16esw_data *d) |
771 |
{ |
772 |
struct bcm5600_table *table; |
773 |
m_uint32_t **array; |
774 |
int i; |
775 |
|
776 |
for(i=0;bcm5600_tables[i].name;i++) { |
777 |
table = &bcm5600_tables[i]; |
778 |
array = (PTR_ADJUST(m_uint32_t **,d,table->offset)); |
779 |
free(*array); |
780 |
|
781 |
/* avoid freeing the same table multiple times */ |
782 |
*array = NULL; |
783 |
} |
784 |
} |
785 |
|
786 |
/* Find a table given its address */ |
787 |
static struct bcm5600_table *bcm5600_table_find(struct nm_16esw_data *d, |
788 |
m_uint32_t addr) |
789 |
{ |
790 |
int i; |
791 |
|
792 |
for(i=0;bcm5600_tables[i].name;i++) |
793 |
if (bcm5600_tables[i].addr == addr) |
794 |
return(&bcm5600_tables[i]); |
795 |
|
796 |
#if DEBUG_UNKNOWN |
797 |
BCM_LOG(d,"unknown table at address 0x%8.8x\n",addr); |
798 |
#endif |
799 |
return NULL; |
800 |
} |
801 |
|
802 |
/* Get a table entry */ |
803 |
static inline m_uint32_t *bcm5600_table_get_entry(struct nm_16esw_data *d, |
804 |
struct bcm5600_table *table, |
805 |
m_uint32_t index) |
806 |
{ |
807 |
m_uint32_t *array; |
808 |
|
809 |
if ((index < table->min_index) || (index > table->max_index)) |
810 |
return NULL; |
811 |
|
812 |
array = *(PTR_ADJUST(m_uint32_t **,d,table->offset)); |
813 |
return(&array[index*table->nr_words]); |
814 |
} |
815 |
|
816 |
/* Read a table entry */ |
817 |
static int bcm5600_table_read_entry(struct nm_16esw_data *d) |
818 |
{ |
819 |
struct bcm5600_table *table; |
820 |
m_uint32_t addr,index,*entry; |
821 |
int i; |
822 |
|
823 |
addr = d->dw[1] & 0xFFFF0000; |
824 |
index = d->dw[1] & 0x0000FFFF; |
825 |
|
826 |
if (!(table = bcm5600_table_find(d,addr))) { |
827 |
#if DEBUG_UNKNOWN |
828 |
BCM_LOG(d,"unknown mem address at address 0x%8.8x\n",d->dw[1]); |
829 |
#endif |
830 |
return(-1); |
831 |
} |
832 |
|
833 |
if (!(entry = bcm5600_table_get_entry(d,table,index))) |
834 |
return(-1); |
835 |
|
836 |
#if DEBUG_MEM |
837 |
BCM_LOG(d,"READ_MEM: addr=0x%8.8x (table %s)\n",d->dw[1],table->name); |
838 |
#endif |
839 |
|
840 |
for(i=0;i<table->nr_words;i++) |
841 |
d->dw[i+1] = entry[i]; |
842 |
|
843 |
return(0); |
844 |
} |
845 |
|
846 |
/* Write a table entry */ |
847 |
static int bcm5600_table_write_entry(struct nm_16esw_data *d) |
848 |
{ |
849 |
struct bcm5600_table *table; |
850 |
m_uint32_t addr,index,*entry; |
851 |
int i; |
852 |
|
853 |
addr = d->dw[1] & 0xFFFF0000; |
854 |
index = d->dw[1] & 0x0000FFFF; |
855 |
|
856 |
if (!(table = bcm5600_table_find(d,addr))) |
857 |
return(-1); |
858 |
|
859 |
if (!(entry = bcm5600_table_get_entry(d,table,index))) |
860 |
return(-1); |
861 |
|
862 |
for(i=0;i<table->nr_words;i++) |
863 |
entry[i] = d->dw[i+2]; |
864 |
|
865 |
#if DEBUG_MEM |
866 |
{ |
867 |
char buffer[512],*ptr = buffer; |
868 |
|
869 |
for(i=0;i<table->nr_words;i++) |
870 |
ptr += sprintf(ptr,"data[%d]=0x%8.8x ",i,entry[i]); |
871 |
|
872 |
BCM_LOG(d,"WRITE_MEM: addr=0x%8.8x (table %s) %s\n", |
873 |
d->dw[1],table->name,buffer); |
874 |
} |
875 |
#endif |
876 |
return(0); |
877 |
} |
878 |
|
879 |
/* Dump a table (for debugging) */ |
880 |
static int bcm5600_table_dump(struct nm_16esw_data *d,m_uint32_t addr) |
881 |
{ |
882 |
struct bcm5600_table *table; |
883 |
m_uint32_t *entry; |
884 |
int i,j; |
885 |
|
886 |
if (!(table = bcm5600_table_find(d,addr))) |
887 |
return(-1); |
888 |
|
889 |
printf("%s: dumping table \"%s\":\n",d->name,table->name); |
890 |
|
891 |
for(i=table->min_index;i<=table->max_index;i++) { |
892 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
893 |
break; |
894 |
|
895 |
printf(" %4d:",i); |
896 |
|
897 |
for(j=0;j<table->nr_words;j++) |
898 |
printf("0x%8.8x ",entry[j]); |
899 |
|
900 |
printf("\n"); |
901 |
} |
902 |
|
903 |
printf("\n"); |
904 |
return(0); |
905 |
} |
906 |
|
907 |
/* Dump the VLAN table */ |
908 |
static int bcm5600_dump_vtable(struct nm_16esw_data *d) |
909 |
{ |
910 |
struct bcm5600_table *table; |
911 |
struct bcm5600_port *port; |
912 |
m_uint32_t *entry,tbmp,ubmp; |
913 |
u_int vlan; |
914 |
int i,j; |
915 |
|
916 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_VTABLE0))) |
917 |
return(-1); |
918 |
|
919 |
printf("%s: dumping VLAN table:\n",d->name); |
920 |
|
921 |
for(i=table->min_index;i<=table->max_index;i++) { |
922 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
923 |
break; |
924 |
|
925 |
/* Extract the VLAN info */ |
926 |
vlan = entry[0] & BCM5600_VTABLE_VLAN_TAG_MASK; |
927 |
|
928 |
if (vlan == VLAN_INVALID) |
929 |
continue; |
930 |
|
931 |
printf(" VLAN %4u: ",vlan); |
932 |
|
933 |
for(j=0;j<d->nr_port;j++) { |
934 |
tbmp = entry[1] & (1 << j); |
935 |
ubmp = entry[2] & (1 << j); |
936 |
|
937 |
if (tbmp || ubmp) { |
938 |
port = &d->ports[j]; |
939 |
|
940 |
printf("%s (",port->name); |
941 |
|
942 |
if (tbmp) |
943 |
printf("T%s",ubmp ? "/" : ") "); |
944 |
|
945 |
if (ubmp) |
946 |
printf("UT) "); |
947 |
} |
948 |
} |
949 |
|
950 |
printf("\n"); |
951 |
} |
952 |
|
953 |
printf("\n"); |
954 |
return(0); |
955 |
} |
956 |
|
957 |
/* Dump the "trunk" ports */ |
958 |
static int bcm5600_dump_trunks(struct nm_16esw_data *d) |
959 |
{ |
960 |
struct bcm5600_table *table; |
961 |
struct bcm5600_port *port; |
962 |
m_uint32_t *entry; |
963 |
int i,j; |
964 |
|
965 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_TBMAP0))) |
966 |
return(-1); |
967 |
|
968 |
printf("%s: trunk ports:\n",d->name); |
969 |
|
970 |
for(i=table->min_index;i<=table->max_index;i++) { |
971 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
972 |
break; |
973 |
|
974 |
if (!entry[0]) |
975 |
continue; |
976 |
|
977 |
printf(" Trunk %d: ",i); |
978 |
|
979 |
for(j=0;j<d->nr_port;j++) { |
980 |
if (entry[0] & (1 << j)) { |
981 |
port = &d->ports[j]; |
982 |
printf("%s ",port->name); |
983 |
} |
984 |
} |
985 |
|
986 |
printf("\n"); |
987 |
} |
988 |
|
989 |
printf("\n"); |
990 |
return(0); |
991 |
} |
992 |
|
993 |
/* Dump the physical port info */ |
994 |
static int bcm5600_dump_ports(struct nm_16esw_data *d) |
995 |
{ |
996 |
struct bcm5600_table *table; |
997 |
struct bcm5600_port *port; |
998 |
m_uint32_t *entry; |
999 |
u_int vlan,tgid; |
1000 |
int i; |
1001 |
|
1002 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_PTABLE0))) |
1003 |
return(-1); |
1004 |
|
1005 |
printf("%s: physical ports:\n",d->name); |
1006 |
|
1007 |
for(i=0;i<d->nr_port;i++) { |
1008 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
1009 |
break; |
1010 |
|
1011 |
port = &d->ports[i]; |
1012 |
vlan = entry[0] & BCM5600_PTABLE_VLAN_TAG_MASK; |
1013 |
|
1014 |
printf(" %-10s: VLAN %u",port->name,vlan); |
1015 |
|
1016 |
if (entry[0] & BCM5600_PTABLE_TRUNK_FLAG) { |
1017 |
tgid = entry[0] & BCM5600_PTABLE_TGID_MASK; |
1018 |
tgid >>= BCM5600_PTABLE_TGID_SHIFT; |
1019 |
|
1020 |
printf(", Trunk Group %u ",tgid); |
1021 |
} |
1022 |
|
1023 |
printf("\n"); |
1024 |
} |
1025 |
|
1026 |
printf("\n"); |
1027 |
return(0); |
1028 |
} |
1029 |
|
1030 |
/* Dump the physical port bitmaps */ |
1031 |
static int bcm5600_dump_port_bitmaps(struct nm_16esw_data *d) |
1032 |
{ |
1033 |
struct bcm5600_table *table; |
1034 |
struct bcm5600_port *port; |
1035 |
m_uint32_t *entry,tbmp,ubmp; |
1036 |
int i,j; |
1037 |
|
1038 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_PTABLE0))) |
1039 |
return(-1); |
1040 |
|
1041 |
printf("%s: dumping bitmaps of the port table:\n",d->name); |
1042 |
|
1043 |
for(i=0;i<d->nr_port;i++) { |
1044 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
1045 |
break; |
1046 |
|
1047 |
port = &d->ports[i]; |
1048 |
|
1049 |
printf(" %-10s: ",port->name); |
1050 |
|
1051 |
for(j=0;j<d->nr_port;j++) { |
1052 |
tbmp = entry[1] & (1 << j); |
1053 |
ubmp = entry[2] & (1 << j); |
1054 |
|
1055 |
if (tbmp || ubmp) { |
1056 |
printf("%s (",d->ports[j].name); |
1057 |
|
1058 |
if (tbmp) |
1059 |
printf("T%s",ubmp ? "/" : ") "); |
1060 |
|
1061 |
if (ubmp) |
1062 |
printf("UT) "); |
1063 |
} |
1064 |
} |
1065 |
|
1066 |
printf("\n"); |
1067 |
} |
1068 |
|
1069 |
printf("\n"); |
1070 |
return(0); |
1071 |
} |
1072 |
|
1073 |
/* Dump main tables */ |
1074 |
static void bcm5600_dump_main_tables(struct nm_16esw_data *d) |
1075 |
{ |
1076 |
bcm5600_dump_ports(d); |
1077 |
bcm5600_dump_port_bitmaps(d); |
1078 |
bcm5600_dump_vtable(d); |
1079 |
bcm5600_dump_trunks(d); |
1080 |
} |
1081 |
|
1082 |
/* Find a free ARL entry */ |
1083 |
static int bcm5600_find_free_arl_entry(struct nm_16esw_data *d) |
1084 |
{ |
1085 |
struct bcm5600_table *table = d->t_arl; |
1086 |
m_uint32_t *entry; |
1087 |
u_int vlan; |
1088 |
int i; |
1089 |
|
1090 |
for(i=table->min_index;i<=table->max_index;i++) { |
1091 |
entry = bcm5600_table_get_entry(d,table,i); |
1092 |
|
1093 |
vlan = (entry[1] & BCM5600_ARL_VLAN_TAG_MASK); |
1094 |
vlan >>= BCM5600_ARL_VLAN_TAG_SHIFT; |
1095 |
|
1096 |
if (vlan == 0xFFF) |
1097 |
return(i); |
1098 |
} |
1099 |
|
1100 |
return(-1); |
1101 |
} |
1102 |
|
1103 |
/* ARL Lookup. TODO: this must be optimized in the future. */ |
1104 |
static inline int bcm5600_gen_arl_lookup(struct nm_16esw_data *d, |
1105 |
struct bcm5600_table *table, |
1106 |
n_eth_addr_t *mac_addr, |
1107 |
u_int vlan) |
1108 |
{ |
1109 |
m_uint32_t *entry,tmp[2],mask; |
1110 |
int i; |
1111 |
|
1112 |
tmp[0] = mac_addr->eth_addr_byte[2] << 24; |
1113 |
tmp[0] |= mac_addr->eth_addr_byte[3] << 16; |
1114 |
tmp[0] |= mac_addr->eth_addr_byte[4] << 8; |
1115 |
tmp[0] |= mac_addr->eth_addr_byte[5]; |
1116 |
|
1117 |
tmp[1] = (mac_addr->eth_addr_byte[0] << 8) | mac_addr->eth_addr_byte[1]; |
1118 |
tmp[1] |= vlan << BCM5600_ARL_VLAN_TAG_SHIFT; |
1119 |
|
1120 |
mask = BCM5600_ARL_VLAN_TAG_MASK | BCM5600_ARL_MAC_MSB_MASK; |
1121 |
|
1122 |
for(i=table->min_index;i<=table->max_index;i++) { |
1123 |
entry = bcm5600_table_get_entry(d,table,i); |
1124 |
|
1125 |
if ((entry[0] == tmp[0]) && ((entry[1] & mask) == tmp[1])) |
1126 |
return(i); |
1127 |
} |
1128 |
|
1129 |
return(-1); |
1130 |
} |
1131 |
|
1132 |
/* ARL Lookup */ |
1133 |
static inline int bcm5600_arl_lookup(struct nm_16esw_data *d, |
1134 |
n_eth_addr_t *mac_addr, |
1135 |
u_int vlan) |
1136 |
{ |
1137 |
return(bcm5600_gen_arl_lookup(d,d->t_arl,mac_addr,vlan)); |
1138 |
} |
1139 |
|
1140 |
/* MARL Lookup */ |
1141 |
static inline int bcm5600_marl_lookup(struct nm_16esw_data *d, |
1142 |
n_eth_addr_t *mac_addr, |
1143 |
u_int vlan) |
1144 |
{ |
1145 |
return(bcm5600_gen_arl_lookup(d,d->t_marl,mac_addr,vlan)); |
1146 |
} |
1147 |
|
1148 |
/* Insert an entry into the ARL table */ |
1149 |
static int bcm5600_insert_arl_entry(struct nm_16esw_data *d) |
1150 |
{ |
1151 |
struct bcm5600_table *table = d->t_arl; |
1152 |
m_uint32_t *entry; |
1153 |
int index; |
1154 |
|
1155 |
if ((index = bcm5600_find_free_arl_entry(d)) == -1) |
1156 |
return(-1); |
1157 |
|
1158 |
entry = bcm5600_table_get_entry(d,table,index); |
1159 |
entry[0] = d->dw[1]; |
1160 |
entry[1] = d->dw[2]; |
1161 |
entry[2] = d->dw[3]; |
1162 |
d->dw[1] = index; |
1163 |
return(0); |
1164 |
} |
1165 |
|
1166 |
/* Delete an entry from the ARL table */ |
1167 |
static int bcm5600_delete_arl_entry(struct nm_16esw_data *d) |
1168 |
{ |
1169 |
struct bcm5600_table *table; |
1170 |
m_uint32_t *entry,mac_msb; |
1171 |
u_int cvlan,vlan; |
1172 |
int i; |
1173 |
|
1174 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_ARL0))) |
1175 |
return(-1); |
1176 |
|
1177 |
vlan = d->dw[2] & BCM5600_ARL_VLAN_TAG_MASK; |
1178 |
vlan >>= BCM5600_ARL_VLAN_TAG_SHIFT; |
1179 |
|
1180 |
mac_msb = d->dw[2] & BCM5600_ARL_MAC_MSB_MASK; |
1181 |
|
1182 |
for(i=table->min_index;i<=table->max_index;i++) { |
1183 |
entry = bcm5600_table_get_entry(d,table,i); |
1184 |
|
1185 |
/* compare VLANs and MAC addresses */ |
1186 |
cvlan = (entry[1] & BCM5600_ARL_VLAN_TAG_MASK); |
1187 |
cvlan >>= BCM5600_ARL_VLAN_TAG_SHIFT; |
1188 |
|
1189 |
if ((cvlan == vlan) && (entry[0] == d->dw[1]) && |
1190 |
((entry[1] & BCM5600_ARL_MAC_MSB_MASK) == mac_msb)) |
1191 |
{ |
1192 |
entry[0] = 0xFFFFFFFF; |
1193 |
entry[1] = (VLAN_INVALID << BCM5600_ARL_VLAN_TAG_SHIFT) | 0xFFFF; |
1194 |
entry[2] = 0; |
1195 |
|
1196 |
d->dw[1] = i; |
1197 |
return(i); |
1198 |
} |
1199 |
} |
1200 |
|
1201 |
return(0); |
1202 |
} |
1203 |
|
1204 |
/* Reset the ARL tables */ |
1205 |
static int bcm5600_reset_arl(struct nm_16esw_data *d) |
1206 |
{ |
1207 |
struct bcm5600_table *table; |
1208 |
m_uint32_t *entry; |
1209 |
int i; |
1210 |
|
1211 |
if (!(table = bcm5600_table_find(d,BCM5600_ADDR_ARL0))) |
1212 |
return(-1); |
1213 |
|
1214 |
for(i=table->min_index;i<=table->max_index;i++) { |
1215 |
entry = bcm5600_table_get_entry(d,table,i); |
1216 |
|
1217 |
entry[0] = 0xFFFFFFFF; |
1218 |
entry[1] = (VLAN_INVALID << BCM5600_ARL_VLAN_TAG_SHIFT) | 0xFFFF; |
1219 |
entry[2] = 0; |
1220 |
} |
1221 |
|
1222 |
return(0); |
1223 |
} |
1224 |
|
1225 |
/* Get the VTABLE entry matching the specified VLAN */ |
1226 |
static m_uint32_t *bcm5600_vtable_get_entry_by_vlan(struct nm_16esw_data *d, |
1227 |
u_int vlan) |
1228 |
{ |
1229 |
struct bcm5600_table *table = d->t_vtable; |
1230 |
m_uint32_t *entry; |
1231 |
int i; |
1232 |
|
1233 |
for(i=table->min_index;i<=table->max_index;i++) { |
1234 |
if (!(entry = bcm5600_table_get_entry(d,table,i))) |
1235 |
break; |
1236 |
|
1237 |
if ((entry[0] & BCM5600_VTABLE_VLAN_TAG_MASK) == vlan) |
1238 |
return entry; |
1239 |
} |
1240 |
|
1241 |
return NULL; |
1242 |
} |
1243 |
|
1244 |
/* Read memory command */ |
1245 |
static void bcm5600_handle_read_mem_cmd(struct nm_16esw_data *d) |
1246 |
{ |
1247 |
int i; |
1248 |
|
1249 |
if (bcm5600_table_read_entry(d) != 0) { |
1250 |
for(i=0;i<BCM5600_DW_MAX;i++) |
1251 |
d->dw[i] = 0; |
1252 |
} |
1253 |
|
1254 |
d->dw[0] = BCM5600_OP_READ_MEM_ACK << BCM5600_CMD_OP_SHIFT; |
1255 |
} |
1256 |
|
1257 |
/* Write memory command */ |
1258 |
static void bcm5600_handle_write_mem_cmd(struct nm_16esw_data *d) |
1259 |
{ |
1260 |
bcm5600_table_write_entry(d); |
1261 |
d->dw[0] = BCM5600_OP_WRITE_MEM_ACK << BCM5600_CMD_OP_SHIFT; |
1262 |
} |
1263 |
|
1264 |
/* Handle a "general" command */ |
1265 |
static void bcm5600_handle_gen_cmd(struct nm_16esw_data *d) |
1266 |
{ |
1267 |
m_uint32_t op,src,dst,len; |
1268 |
|
1269 |
/* Extract the opcode */ |
1270 |
op = (d->dw[0] & BCM5600_CMD_OP_MASK) >> BCM5600_CMD_OP_SHIFT; |
1271 |
src = (d->dw[0] & BCM5600_CMD_SRC_MASK) >> BCM5600_CMD_SRC_SHIFT; |
1272 |
dst = (d->dw[0] & BCM5600_CMD_DST_MASK) >> BCM5600_CMD_DST_SHIFT; |
1273 |
len = (d->dw[0] & BCM5600_CMD_LEN_MASK) >> BCM5600_CMD_LEN_SHIFT; |
1274 |
|
1275 |
#if DEBUG_ACCESS |
1276 |
BCM_LOG(d,"gen_cmd: opcode 0x%2.2x [src=0x%2.2x,dst=0x%2.2x,len=0x%2.2x] " |
1277 |
"(dw[0]=0x%8.8x, dw[1]=0x%8.8x, dw[2]=0x%8.8x, dw[3]=0x%8.8x)\n", |
1278 |
op,src,dst,len,d->dw[0],d->dw[1],d->dw[2],d->dw[3]); |
1279 |
#endif |
1280 |
|
1281 |
switch(op) { |
1282 |
case BCM5600_OP_READ_MEM_CMD: |
1283 |
bcm5600_handle_read_mem_cmd(d); |
1284 |
break; |
1285 |
|
1286 |
case BCM5600_OP_WRITE_MEM_CMD: |
1287 |
bcm5600_handle_write_mem_cmd(d); |
1288 |
break; |
1289 |
|
1290 |
case BCM5600_OP_READ_REG_CMD: |
1291 |
d->dw[0] = BCM5600_OP_READ_REG_ACK << BCM5600_CMD_OP_SHIFT; |
1292 |
#if DEBUG_REG |
1293 |
BCM_LOG(d,"READ_REG: reg_addr=0x%8.8x\n",d->dw[1]); |
1294 |
#endif |
1295 |
d->dw[1] = bcm5600_reg_read(d,d->dw[1]); |
1296 |
break; |
1297 |
|
1298 |
case BCM5600_OP_WRITE_REG_CMD: |
1299 |
d->dw[0] = BCM5600_OP_WRITE_REG_ACK << BCM5600_CMD_OP_SHIFT; |
1300 |
#if DEBUG_REG |
1301 |
BCM_LOG(d,"WRITE_REG: reg_addr=0x%8.8x val=0x%8.8x\n", |
1302 |
d->dw[1],d->dw[2]); |
1303 |
#endif |
1304 |
bcm5600_reg_write(d,d->dw[1],d->dw[2]); |
1305 |
bcm5600_reg_write_special(d,d->dw[1],d->dw[2]); |
1306 |
break; |
1307 |
|
1308 |
case BCM5600_OP_ARL_INSERT_CMD: |
1309 |
d->dw[0] = BCM5600_OP_ARL_INSERT_DONE << BCM5600_CMD_OP_SHIFT; |
1310 |
|
1311 |
#if DEBUG_ARL |
1312 |
BCM_LOG(d,"ARL_INSERT_CMD " |
1313 |
"(dw[1]=0x%8.8x,dw[2]=0x%8.8x,dw[3]=0x%8.8x)\n", |
1314 |
d->dw[1],d->dw[2],d->dw[3]); |
1315 |
#endif |
1316 |
bcm5600_insert_arl_entry(d); |
1317 |
break; |
1318 |
|
1319 |
case BCM5600_OP_ARL_DELETE_CMD: |
1320 |
d->dw[0] = BCM5600_OP_ARL_DELETE_DONE << BCM5600_CMD_OP_SHIFT; |
1321 |
|
1322 |
#if DEBUG_ARL |
1323 |
BCM_LOG(d,"ARL_DELETE_CMD (dw[1]=0x%8.8x,dw[2]=0x%8.8x)\n", |
1324 |
d->dw[1],d->dw[2]); |
1325 |
#endif |
1326 |
bcm5600_delete_arl_entry(d); |
1327 |
break; |
1328 |
|
1329 |
case BCM5600_OP_ARL_LOOKUP_CMD: |
1330 |
d->dw[0] = BCM5600_OP_READ_MEM_ACK << BCM5600_CMD_OP_SHIFT; |
1331 |
break; |
1332 |
|
1333 |
default: |
1334 |
BCM_LOG(d,"unknown opcode 0x%8.8x (cmd=0x%8.8x)\n",op,d->dw[0]); |
1335 |
} |
1336 |
} |
1337 |
|
1338 |
/* Handle a s-channel command */ |
1339 |
static void bcm5600_handle_schan_cmd(struct nm_16esw_data *d,m_uint32_t cmd) |
1340 |
{ |
1341 |
d->schan_cmd = cmd; |
1342 |
|
1343 |
#if DEBUG_ACCESS |
1344 |
BCM_LOG(d,"s-chan command 0x%8.8x\n",cmd); |
1345 |
#endif |
1346 |
|
1347 |
switch(cmd) { |
1348 |
case BCM5600_SCHAN_CMD_EXEC: |
1349 |
bcm5600_handle_gen_cmd(d); |
1350 |
d->schan_cmd_res = 0xFFFFFFFF; |
1351 |
break; |
1352 |
|
1353 |
case BCM5600_SCHAN_CMD_READ_MII: |
1354 |
bcm5600_mii_read(d); |
1355 |
d->schan_cmd_res = 0xFFFFFFFF; |
1356 |
break; |
1357 |
|
1358 |
case BCM5600_SCHAN_CMD_WRITE_MII: |
1359 |
bcm5600_mii_write(d); |
1360 |
d->schan_cmd_res = 0xFFFFFFFF; |
1361 |
break; |
1362 |
|
1363 |
case BCM5600_SCHAN_CMD_LINKSCAN: |
1364 |
d->schan_cmd_res = 0x0; |
1365 |
break; |
1366 |
|
1367 |
default: |
1368 |
#if DEBUG_UNKNOWN |
1369 |
BCM_LOG(d,"unknown s-chan command 0x%8.8x\n",cmd); |
1370 |
#endif |
1371 |
d->schan_cmd_res = 0xFFFFFFFF; |
1372 |
} |
1373 |
} |
1374 |
|
1375 |
/* |
1376 |
* dev_bcm5605_access() |
1377 |
*/ |
1378 |
void *dev_bcm5605_access(cpu_mips_t *cpu,struct vdevice *dev,m_uint32_t offset, |
1379 |
u_int op_size,u_int op_type,m_uint64_t *data) |
1380 |
{ |
1381 |
struct nm_16esw_data *d = dev->priv_data; |
1382 |
u_int reg; |
1383 |
|
1384 |
if (op_type == MTS_READ) |
1385 |
*data = 0; |
1386 |
|
1387 |
#if DEBUG_ACCESS |
1388 |
if (op_type == MTS_READ) { |
1389 |
BCM_LOG(d,"read access to offset=0x%x, pc=0x%llx\n",offset,cpu->pc); |
1390 |
} else { |
1391 |
BCM_LOG(d,"write access to offset=0x%x, pc=0x%llx, val=0x%llx\n", |
1392 |
offset,cpu->pc,*data); |
1393 |
} |
1394 |
#endif |
1395 |
|
1396 |
BCM_LOCK(d); |
1397 |
|
1398 |
switch(offset) { |
1399 |
case 0x50: |
1400 |
if (op_type == MTS_WRITE) { |
1401 |
bcm5600_handle_schan_cmd(d,*data); |
1402 |
} else { |
1403 |
*data = d->schan_cmd_res; |
1404 |
} |
1405 |
break; |
1406 |
|
1407 |
case 0x140: |
1408 |
if (op_type == MTS_READ) |
1409 |
*data = bcm5600_mii_port_status_bmp(d); |
1410 |
break; |
1411 |
|
1412 |
/* MII input register */ |
1413 |
case 0x158: |
1414 |
if (op_type == MTS_WRITE) |
1415 |
d->mii_input = *data; |
1416 |
break; |
1417 |
|
1418 |
/* MII output register */ |
1419 |
case 0x15c: |
1420 |
if (op_type == MTS_READ) |
1421 |
*data = d->mii_output; |
1422 |
break; |
1423 |
|
1424 |
/* Unknown (related to RX/TX rings ?) */ |
1425 |
case 0x104: |
1426 |
break; |
1427 |
|
1428 |
/* TX ring address */ |
1429 |
case 0x110: |
1430 |
if (op_type == MTS_READ) |
1431 |
*data = d->tx_ring_addr; |
1432 |
else { |
1433 |
d->tx_ring_addr = d->tx_current = *data; |
1434 |
d->tx_end_scan = 0; |
1435 |
#if DEBUG_TRANSMIT |
1436 |
BCM_LOG(d,"tx_ring_addr = 0x%8.8x\n",d->tx_ring_addr); |
1437 |
#endif |
1438 |
} |
1439 |
break; |
1440 |
|
1441 |
/* RX ring address */ |
1442 |
case 0x114: |
1443 |
if (op_type == MTS_READ) |
1444 |
*data = d->rx_ring_addr; |
1445 |
else { |
1446 |
d->rx_ring_addr = d->rx_current = *data; |
1447 |
d->rx_end_scan = 0; |
1448 |
#if DEBUG_RECEIVE |
1449 |
BCM_LOG(d,"rx_ring_addr = 0x%8.8x\n",d->rx_ring_addr); |
1450 |
#endif |
1451 |
} |
1452 |
break; |
1453 |
|
1454 |
/* Interrupt status */ |
1455 |
case 0x144: |
1456 |
if (op_type == MTS_READ) { |
1457 |
*data = 0; |
1458 |
|
1459 |
/* RX/TX underrun (end of rings reached) */ |
1460 |
if (d->tx_end_scan) |
1461 |
*data |= BCM5600_INTR_TX_UNDERRUN; |
1462 |
|
1463 |
if (d->rx_end_scan) |
1464 |
*data |= BCM5600_INTR_RX_UNDERRUN; |
1465 |
|
1466 |
/* RX packet available */ |
1467 |
*data |= BCM5600_INTR_RX_AVAIL; |
1468 |
|
1469 |
/* Link status changed */ |
1470 |
if (d->mii_intr) { |
1471 |
*data |= BCM5600_INTR_LINKSTAT_MOD; |
1472 |
d->mii_intr = FALSE; |
1473 |
} |
1474 |
} |
1475 |
break; |
1476 |
|
1477 |
/* Interrupt mask */ |
1478 |
case 0x148: |
1479 |
if (op_type == MTS_READ) |
1480 |
*data = d->intr_mask; |
1481 |
else |
1482 |
d->intr_mask = *data; |
1483 |
break; |
1484 |
|
1485 |
/* Data Words */ |
1486 |
case 0x800 ... 0x850: |
1487 |
reg = (offset - 0x800) >> 2; |
1488 |
|
1489 |
if (op_type == MTS_READ) |
1490 |
*data = d->dw[reg]; |
1491 |
else |
1492 |
d->dw[reg] = *data; |
1493 |
break; |
1494 |
|
1495 |
#if DEBUG_UNKNOWN |
1496 |
/* Unknown offset */ |
1497 |
default: |
1498 |
if (op_type == MTS_READ) { |
1499 |
BCM_LOG(d,"read from unknown addr 0x%x, pc=0x%llx (size=%u)\n", |
1500 |
offset,cpu->pc,op_size); |
1501 |
} else { |
1502 |
BCM_LOG(d,"write to unknown addr 0x%x, value=0x%llx, " |
1503 |
"pc=0x%llx (size=%u)\n",offset,*data,cpu->pc,op_size); |
1504 |
} |
1505 |
#endif |
1506 |
} |
1507 |
|
1508 |
BCM_UNLOCK(d); |
1509 |
return NULL; |
1510 |
} |
1511 |
|
1512 |
/* Show mirroring status */ |
1513 |
static int bcm5600_mirror_show_status(struct nm_16esw_data *d) |
1514 |
{ |
1515 |
m_uint32_t *port,dst_port; |
1516 |
int i; |
1517 |
|
1518 |
printf("Mirroring status: "); |
1519 |
|
1520 |
if (!(d->mirror_dst_port & BCM5600_MIRROR_ENABLE)) { |
1521 |
printf("disabled.\n\n"); |
1522 |
return(FALSE); |
1523 |
} |
1524 |
|
1525 |
printf("enabled. Dest port: "); |
1526 |
|
1527 |
dst_port = d->mirror_dst_port & BCM5600_MIRROR_PORT_MASK; |
1528 |
|
1529 |
if (dst_port < 32) |
1530 |
printf("%s\n",d->ports[dst_port].name); |
1531 |
else |
1532 |
printf("none set.\n"); |
1533 |
|
1534 |
/* Ingress info */ |
1535 |
printf(" Ingress Ports: "); |
1536 |
|
1537 |
for(i=0;i<d->nr_port;i++) { |
1538 |
port = bcm5600_table_get_entry(d,d->t_ptable,i); |
1539 |
if (port[1] & BCM5600_PTABLE_MI_FLAG) |
1540 |
printf("%s ",d->ports[i].name); |
1541 |
} |
1542 |
|
1543 |
printf("\n"); |
1544 |
|
1545 |
/* Egress info */ |
1546 |
printf(" Egress Ports: "); |
1547 |
|
1548 |
for(i=0;i<d->nr_port;i++) |
1549 |
if (d->mirror_egress_ports & (1 << i)) |
1550 |
printf("%s ",d->ports[i].name); |
1551 |
|
1552 |
printf("\n\n"); |
1553 |
return(TRUE); |
1554 |
} |
1555 |
|
1556 |
/* Mirror a packet */ |
1557 |
static int bcm5600_mirror_pkt(struct nm_16esw_data *d,struct bcm5600_pkt *p, |
1558 |
int reason) |
1559 |
{ |
1560 |
u_int mport; |
1561 |
|
1562 |
if (!(d->mirror_dst_port & BCM5600_MIRROR_ENABLE)) |
1563 |
return(FALSE); |
1564 |
|
1565 |
#if DEBUG_MIRROR |
1566 |
if (reason == 0) { |
1567 |
BCM_LOG(d,"mirroring packet on ingress port %s\n", |
1568 |
d->ports[p->ingress_port]); |
1569 |
} else { |
1570 |
BCM_LOG(d,"mirroring packet on egress port (input port %s)\n", |
1571 |
d->ports[p->ingress_port]); |
1572 |
} |
1573 |
mem_dump(d->vm->log_fd,pkt,pkt_len); |
1574 |
#endif |
1575 |
|
1576 |
mport = d->mirror_dst_port & BCM5600_MIRROR_PORT_MASK; |
1577 |
if (mport < 32) |
1578 |
netio_send(d->ports[mport].nio,p->pkt,p->pkt_len); |
1579 |
return(TRUE); |
1580 |
} |
1581 |
|
1582 |
/* Put a packet into the RX ring (tag it if necessary) */ |
1583 |
static int bcm5600_send_pkt_to_cpu(struct nm_16esw_data *d, |
1584 |
struct bcm5600_pkt *p) |
1585 |
{ |
1586 |
m_uint32_t pkt_addr,pkt_len,dot1q_data; |
1587 |
|
1588 |
/* If the packet was already sent to CPU, don't send it again */ |
1589 |
if (p->sent_to_cpu) |
1590 |
return(FALSE); |
1591 |
|
1592 |
pkt_addr = p->rdes[0]; |
1593 |
pkt_len = p->pkt_len; |
1594 |
|
1595 |
if (p->orig_vlan != -1) { |
1596 |
/* 802.1Q packet: copy it directly */ |
1597 |
physmem_copy_to_vm(d->vm,p->pkt,pkt_addr,pkt_len); |
1598 |
} else { |
1599 |
/* untagged packet: copy the dst and src addresses first */ |
1600 |
physmem_copy_to_vm(d->vm,p->pkt,pkt_addr,N_ETH_HLEN - 2); |
1601 |
|
1602 |
/* add the 802.1Q protocol field (0x8100) + VLAN info */ |
1603 |
dot1q_data = (N_ETH_PROTO_DOT1Q << 16) | p->real_vlan; |
1604 |
physmem_copy_u32_to_vm(d->vm,pkt_addr+N_ETH_HLEN-2,dot1q_data); |
1605 |
|
1606 |
/* copy the payload */ |
1607 |
physmem_copy_to_vm(d->vm,p->pkt+N_ETH_HLEN-2, |
1608 |
pkt_addr+sizeof(n_eth_dot1q_hdr_t), |
1609 |
pkt_len - (N_ETH_HLEN - 2)); |
1610 |
pkt_len += 4; |
1611 |
} |
1612 |
|
1613 |
physmem_copy_u32_to_vm(d->vm,d->rx_current+0x14,0x40000000 + (pkt_len+4)); |
1614 |
physmem_copy_u32_to_vm(d->vm,d->rx_current+0x18,0x100 + p->ingress_port); |
1615 |
p->sent_to_cpu = TRUE; |
1616 |
|
1617 |
#if DEBUG_RECEIVE |
1618 |
BCM_LOG(d,"sending packet to CPU.\n"); |
1619 |
#endif |
1620 |
return(TRUE); |
1621 |
} |
1622 |
|
1623 |
/* Source MAC address learning */ |
1624 |
static int bcm5600_src_mac_learning(struct nm_16esw_data *d, |
1625 |
struct bcm5600_pkt *p) |
1626 |
{ |
1627 |
n_eth_hdr_t *eth_hdr = (n_eth_hdr_t *)p->pkt; |
1628 |
n_eth_addr_t *src_mac = ð_hdr->saddr; |
1629 |
m_uint32_t *arl_entry,*src_port,*trunk; |
1630 |
u_int trunk_id,old_ingress_port; |
1631 |
int src_mac_index; |
1632 |
|
1633 |
trunk = NULL; |
1634 |
trunk_id = 0; |
1635 |
|
1636 |
/* Skip multicast sources */ |
1637 |
if (eth_addr_is_mcast(src_mac)) |
1638 |
return(FALSE); |
1639 |
|
1640 |
src_port = bcm5600_table_get_entry(d,d->t_ptable,p->ingress_port); |
1641 |
assert(src_port != NULL); |
1642 |
|
1643 |
/* |
1644 |
* The packet comes from a trunk port. Prevent sending the packet |
1645 |
* to the other ports of the trunk. |
1646 |
*/ |
1647 |
if (src_port[0] & BCM5600_PTABLE_TRUNK_FLAG) { |
1648 |
trunk_id = src_port[0] & BCM5600_PTABLE_TGID_MASK; |
1649 |
trunk_id >>= BCM5600_PTABLE_TGID_SHIFT; |
1650 |
|
1651 |
trunk = bcm5600_table_get_entry(d,d->t_tbmap,trunk_id); |
1652 |
assert(trunk != NULL); |
1653 |
|
1654 |
p->egress_filter_bitmap |= trunk[0] & BCM5600_TBMAP_MASK; |
1655 |
} |
1656 |
|
1657 |
/* Source MAC address learning */ |
1658 |
src_mac_index = bcm5600_arl_lookup(d,src_mac,p->real_vlan); |
1659 |
|
1660 |
if (src_mac_index != -1) { |
1661 |
arl_entry = bcm5600_table_get_entry(d,d->t_arl,src_mac_index); |
1662 |
assert(arl_entry != NULL); |
1663 |
|
1664 |
old_ingress_port = arl_entry[2] & BCM5600_ARL_PORT_MASK; |
1665 |
old_ingress_port >>= BCM5600_ARL_PORT_SHIFT; |
1666 |
|
1667 |
if (old_ingress_port != p->ingress_port) |
1668 |
{ |
1669 |
/* |
1670 |
* Determine if we have a station movement. |
1671 |
* If we have a trunk, check if the old ingress port is member |
1672 |
* of this trunk, in this case this is not a movement. |
1673 |
*/ |
1674 |
if (trunk != NULL) { |
1675 |
if (trunk[0] & (1 << old_ingress_port)) |
1676 |
arl_entry[2] |= BCM5600_ARL_HIT_FLAG; |
1677 |
else |
1678 |
arl_entry[2] &= ~BCM5600_ARL_HIT_FLAG; |
1679 |
} else { |
1680 |
arl_entry[2] &= ~(BCM5600_ARL_TRUNK_FLAG|BCM5600_ARL_HIT_FLAG); |
1681 |
arl_entry[2] &= ~BCM5600_ARL_TGID_MASK; |
1682 |
} |
1683 |
|
1684 |
/* Change the ingress port */ |
1685 |
arl_entry[2] &= ~BCM5600_ARL_PORT_MASK; |
1686 |
arl_entry[2] |= p->ingress_port << BCM5600_ARL_PORT_SHIFT; |
1687 |
return(TRUE); |
1688 |
} |
1689 |
|
1690 |
arl_entry[2] |= BCM5600_ARL_HIT_FLAG; |
1691 |
return(TRUE); |
1692 |
} |
1693 |
|
1694 |
#if DEBUG_FORWARD |
1695 |
BCM_LOG(d,"source MAC address unknown, learning it.\n"); |
1696 |
#endif |
1697 |
|
1698 |
/* Add the new learned MAC address */ |
1699 |
src_mac_index = bcm5600_find_free_arl_entry(d); |
1700 |
|
1701 |
if (src_mac_index == -1) { |
1702 |
#if DEBUG_FORWARD |
1703 |
BCM_LOG(d,"no free entries in ARL table.\n"); |
1704 |
#endif |
1705 |
return(FALSE); |
1706 |
} |
1707 |
|
1708 |
arl_entry = bcm5600_table_get_entry(d,d->t_arl,src_mac_index); |
1709 |
assert(arl_entry != NULL); |
1710 |
|
1711 |
/* Fill the new ARL entry */ |
1712 |
arl_entry[0] = src_mac->eth_addr_byte[2] << 24; |
1713 |
arl_entry[0] |= src_mac->eth_addr_byte[3] << 16; |
1714 |
arl_entry[0] |= src_mac->eth_addr_byte[4] << 8; |
1715 |
arl_entry[0] |= src_mac->eth_addr_byte[5]; |
1716 |
|
1717 |
arl_entry[1] = src_mac->eth_addr_byte[0] << 8; |
1718 |
arl_entry[1] |= src_mac->eth_addr_byte[1]; |
1719 |
arl_entry[1] |= p->real_vlan << BCM5600_ARL_VLAN_TAG_SHIFT; |
1720 |
|
1721 |
arl_entry[2] = BCM5600_ARL_HIT_FLAG; |
1722 |
arl_entry[2] |= p->ingress_port << BCM5600_ARL_PORT_SHIFT; |
1723 |
|
1724 |
if (trunk != NULL) { |
1725 |
arl_entry[2] |= BCM5600_ARL_TRUNK_FLAG; |
1726 |
arl_entry[2] |= (trunk_id << BCM5600_ARL_TGID_SHIFT); |
1727 |
} |
1728 |
|
1729 |
return(TRUE); |
1730 |
} |
1731 |
|
1732 |
/* Select an egress port the specified trunk */ |
1733 |
static int bcm5600_trunk_egress_port(struct nm_16esw_data *d, |
1734 |
struct bcm5600_pkt *p, |
1735 |
u_int trunk_id) |
1736 |
{ |
1737 |
n_eth_hdr_t *eth_hdr = (n_eth_hdr_t *)p->pkt; |
1738 |
struct bcm5600_tg_info *tgi; |
1739 |
m_uint32_t *ttr_entry; |
1740 |
u_int i,nr_links; |
1741 |
u_int hash,port_id; |
1742 |
|
1743 |
ttr_entry = bcm5600_table_get_entry(d,d->t_ttr,trunk_id); |
1744 |
assert(ttr_entry != NULL); |
1745 |
|
1746 |
nr_links = ttr_entry[1] & BCM5600_TTR_TG_SIZE_MASK; |
1747 |
nr_links >>= BCM5600_TTR_TG_SIZE_SHIFT; |
1748 |
|
1749 |
#if 0 |
1750 |
/* Hash on source and destination MAC addresses */ |
1751 |
for(i=0,hash=0;i<N_ETH_ALEN;i++) { |
1752 |
hash ^= eth_hdr->saddr.eth_addr_byte[i]; |
1753 |
hash ^= eth_hdr->daddr.eth_addr_byte[i]; |
1754 |
} |
1755 |
|
1756 |
hash ^= (hash >> 4); |
1757 |
port_id = hash % nr_links; |
1758 |
|
1759 |
/* Maximum of 8 ports per trunk */ |
1760 |
assert(hash < BCM5600_MAX_PORTS_PER_TRUNK); |
1761 |
#else |
1762 |
port_id = d->trunk_last_egress_port[trunk_id] + 1; |
1763 |
port_id %= nr_links; |
1764 |
#endif |
1765 |
|
1766 |
/* Save the latest port used for this trunk */ |
1767 |
d->trunk_last_egress_port[trunk_id] = port_id; |
1768 |
|
1769 |
/* Select the egress port */ |
1770 |
tgi = &tg_info[port_id]; |
1771 |
return((ttr_entry[tgi->index] & tgi->mask) >> tgi->shift); |
1772 |
} |
1773 |
|
1774 |
/* Destination address lookup (take the forwarding decision) */ |
1775 |
static int bcm5600_dst_mac_lookup(struct nm_16esw_data *d, |
1776 |
struct bcm5600_pkt *p) |
1777 |
{ |
1778 |
n_eth_hdr_t *eth_hdr = (n_eth_hdr_t *)p->pkt; |
1779 |
n_eth_addr_t *dst_mac = ð_hdr->daddr; |
1780 |
struct bcm5600_table *arl_table; |
1781 |
m_uint32_t *arl_entry; |
1782 |
u_int egress_port; |
1783 |
u_int trunk_id; |
1784 |
int dst_mac_index; |
1785 |
int is_mcast; |
1786 |
|
1787 |
/* Check for the reserved addresses (BPDU for spanning-tree) */ |
1788 |
if (!memcmp(ð_hdr->daddr,"\x01\x80\xc2\x00\x00",5)) { |
1789 |
p->egress_bitmap |= 1 << d->cpu_port; |
1790 |
return(TRUE); |
1791 |
} |
1792 |
|
1793 |
/* Select the appropriate ARL table */ |
1794 |
if (eth_addr_is_mcast(dst_mac)) { |
1795 |
is_mcast = TRUE; |
1796 |
arl_table = d->t_marl; |
1797 |
} else { |
1798 |
is_mcast = FALSE; |
1799 |
arl_table = d->t_arl; |
1800 |
} |
1801 |
|
1802 |
/* ARL Lookup for this MAC address + VLAN */ |
1803 |
dst_mac_index = bcm5600_gen_arl_lookup(d,arl_table,dst_mac,p->real_vlan); |
1804 |
|
1805 |
/* |
1806 |
* Destination Lookup Failure (DLF). |
1807 |
* |
1808 |
* Use the VLAN bitmap to compute the Egress port bitmap. |
1809 |
* Remove the ingress port from it. |
1810 |
*/ |
1811 |
if (dst_mac_index == -1) { |
1812 |
#if DEBUG_FORWARD |
1813 |
BCM_LOG(d,"Destination MAC address unknown, flooding.\n"); |
1814 |
#endif |
1815 |
p->egress_bitmap = p->vlan_entry[1] & BCM5600_VTABLE_PORT_BMAP_MASK; |
1816 |
|
1817 |
/* Add the CPU to the egress ports */ |
1818 |
p->egress_bitmap |= 1 << d->cpu_port; |
1819 |
|
1820 |
p->egress_ut_bitmap = p->vlan_entry[2]; |
1821 |
p->egress_ut_bitmap &= BCM5600_VTABLE_UT_PORT_BMAP_MASK; |
1822 |
return(TRUE); |
1823 |
} |
1824 |
|
1825 |
/* The MAC address was found in the ARL/MARL table */ |
1826 |
arl_entry = bcm5600_table_get_entry(d,arl_table,dst_mac_index); |
1827 |
assert(arl_entry != NULL); |
1828 |
|
1829 |
/* If the CPU bit is set, send a copy of the packet to the CPU */ |
1830 |
if (arl_entry[1] & BCM5600_ARL_CPU_FLAG) |
1831 |
bcm5600_send_pkt_to_cpu(d,p); |
1832 |
|
1833 |
if (!is_mcast) { |
1834 |
/* Unicast: send the packet to the port or trunk found in ARL table */ |
1835 |
if (arl_entry[2] & BCM5600_ARL_TRUNK_FLAG) { |
1836 |
trunk_id = arl_entry[2] & BCM5600_ARL_TGID_MASK; |
1837 |
trunk_id >>= BCM5600_ARL_TGID_SHIFT; |
1838 |
|
1839 |
/* Select an output port for this trunk */ |
1840 |
egress_port = bcm5600_trunk_egress_port(d,p,trunk_id); |
1841 |
|
1842 |
#if DEBUG_FORWARD |
1843 |
BCM_LOG(d,"Sending packet to trunk port %u, egress port %u\n", |
1844 |
trunk_id,egress_port); |
1845 |
#endif |
1846 |
} else { |
1847 |
egress_port = arl_entry[2] & BCM5600_ARL_PORT_MASK; |
1848 |
egress_port >>= BCM5600_ARL_PORT_SHIFT; |
1849 |
} |
1850 |
|
1851 |
p->egress_bitmap = 1 << egress_port; |
1852 |
p->egress_ut_bitmap = p->vlan_entry[2] & |
1853 |
BCM5600_VTABLE_UT_PORT_BMAP_MASK; |
1854 |
} else { |
1855 |
/* Multicast: send the packet to the egress ports found in MARL table */ |
1856 |
p->egress_bitmap = arl_entry[2] & BCM5600_MARL_PORT_BMAP_MASK; |
1857 |
p->egress_ut_bitmap = arl_entry[3] & BCM5600_MARL_UT_PORT_BMAP_MASK; |
1858 |
} |
1859 |
|
1860 |
#if DEBUG_FORWARD |
1861 |
{ |
1862 |
char buffer[1024]; |
1863 |
|
1864 |
BCM_LOG(d,"bitmap: 0x%8.8x, filter: 0x%8.8x\n", |
1865 |
p->egress_bitmap,p->egress_filter_bitmap); |
1866 |
|
1867 |
bcm5600_port_bitmap_str(d,buffer,p->egress_bitmap); |
1868 |
|
1869 |
/* without egress port filtering */ |
1870 |
if (*buffer) |
1871 |
BCM_LOG(d,"forwarding to egress port list w/o filter: %s\n",buffer); |
1872 |
else |
1873 |
BCM_LOG(d,"w/o filter: empty egress port list.\n"); |
1874 |
|
1875 |
/* with egress port filtering */ |
1876 |
bcm5600_port_bitmap_str(d,buffer, |
1877 |
p->egress_bitmap & ~p->egress_filter_bitmap); |
1878 |
|
1879 |
if (*buffer) |
1880 |
BCM_LOG(d,"forwarding to egress port list w/ filter: %s\n",buffer); |
1881 |
} |
1882 |
#endif |
1883 |
|
1884 |
return(p->egress_bitmap != 0); |
1885 |
} |
1886 |
|
1887 |
/* Prototype for a packet sending function */ |
1888 |
typedef void (*bcm5600_send_pkt_t)(struct nm_16esw_data *d, |
1889 |
struct bcm5600_pkt *p, |
1890 |
netio_desc_t *nio); |
1891 |
|
1892 |
/* Directly forward a packet (not rewritten) */ |
1893 |
static void bcm5600_send_pkt_direct(struct nm_16esw_data *d, |
1894 |
struct bcm5600_pkt *p, |
1895 |
netio_desc_t *nio) |
1896 |
{ |
1897 |
netio_send(nio,p->pkt,p->pkt_len); |
1898 |
} |
1899 |
|
1900 |
/* Send a packet with a 802.1Q tag */ |
1901 |
static void bcm5600_send_pkt_push_dot1q(struct nm_16esw_data *d, |
1902 |
struct bcm5600_pkt *p, |
1903 |
netio_desc_t *nio) |
1904 |
{ |
1905 |
n_eth_dot1q_hdr_t *hdr; |
1906 |
|
1907 |
if (!p->rewrite_done) { |
1908 |
memcpy(p->rewr_pkt,p->pkt,(N_ETH_HLEN - 2)); |
1909 |
|
1910 |
hdr = (n_eth_dot1q_hdr_t *)p->rewr_pkt; |
1911 |
hdr->type = htons(N_ETH_PROTO_DOT1Q); |
1912 |
hdr->vlan_id = htons(p->real_vlan); |
1913 |
|
1914 |
memcpy(p->rewr_pkt + sizeof(n_eth_dot1q_hdr_t), |
1915 |
p->pkt + (N_ETH_HLEN - 2), |
1916 |
p->pkt_len - (N_ETH_HLEN - 2)); |
1917 |
|
1918 |
p->rewrite_done = TRUE; |
1919 |
} |
1920 |
|
1921 |
netio_send(nio,p->rewr_pkt,p->pkt_len+4); |
1922 |
} |
1923 |
|
1924 |
/* Send a packet deleting its 802.1Q tag */ |
1925 |
static void bcm5600_send_pkt_pop_dot1q(struct nm_16esw_data *d, |
1926 |
struct bcm5600_pkt *p, |
1927 |
netio_desc_t *nio) |
1928 |
{ |
1929 |
if (!p->rewrite_done) { |
1930 |
memcpy(p->rewr_pkt,p->pkt,(N_ETH_HLEN - 2)); |
1931 |
|
1932 |
memcpy(p->rewr_pkt + (N_ETH_HLEN - 2), |
1933 |
p->pkt + sizeof(n_eth_dot1q_hdr_t), |
1934 |
p->pkt_len - sizeof(n_eth_dot1q_hdr_t)); |
1935 |
|
1936 |
p->rewrite_done = TRUE; |
1937 |
} |
1938 |
|
1939 |
netio_send(nio,p->rewr_pkt,p->pkt_len-4); |
1940 |
} |
1941 |
|
1942 |
/* Forward a packet on physical ports (egress bitmap must be defined) */ |
1943 |
static int bcm5600_forward_pkt(struct nm_16esw_data *d,struct bcm5600_pkt *p) |
1944 |
{ |
1945 |
u_char rewr_pkt[BCM5600_MAX_PKT_SIZE]; |
1946 |
bcm5600_send_pkt_t send_pkt; |
1947 |
u_int egress_untagged,trunk_id; |
1948 |
m_uint32_t *dst_port,*trunk; |
1949 |
int i; |
1950 |
|
1951 |
p->egress_bitmap &= ~p->egress_filter_bitmap; |
1952 |
|
1953 |
if (!p->egress_bitmap) |
1954 |
return(FALSE); |
1955 |
|
1956 |
/* Process egress mirroring (if enabled) */ |
1957 |
if (p->egress_bitmap & d->mirror_egress_ports) |
1958 |
bcm5600_mirror_pkt(d,p,1); |
1959 |
|
1960 |
/* No rewrite done at this time */ |
1961 |
p->rewr_pkt = rewr_pkt; |
1962 |
p->rewrite_done = FALSE; |
1963 |
|
1964 |
/* Forward to CPU port ? */ |
1965 |
if (p->egress_bitmap & (1 << d->cpu_port)) |
1966 |
bcm5600_send_pkt_to_cpu(d,p); |
1967 |
|
1968 |
for(i=0;i<d->nr_port;i++) { |
1969 |
if (!(p->egress_bitmap & (1 << i))) |
1970 |
continue; |
1971 |
|
1972 |
/* |
1973 |
* If this port is a member of a trunk, remove all other ports to avoid |
1974 |
* duplicate frames (typically, when a dest MAC address is unknown |
1975 |
* or for a broadcast/multicast). |
1976 |
*/ |
1977 |
dst_port = bcm5600_table_get_entry(d,d->t_ptable,i); |
1978 |
assert(dst_port != NULL); |
1979 |
|
1980 |
if (dst_port[0] & BCM5600_PTABLE_TRUNK_FLAG) { |
1981 |
trunk_id = dst_port[0] & BCM5600_PTABLE_TGID_MASK; |
1982 |
trunk_id >>= BCM5600_PTABLE_TGID_SHIFT; |
1983 |
|
1984 |
trunk = bcm5600_table_get_entry(d,d->t_tbmap,trunk_id); |
1985 |
assert(trunk != NULL); |
1986 |
|
1987 |
p->egress_bitmap &= ~trunk[0]; |
1988 |
} |
1989 |
|
1990 |
/* select the appropriate output vector */ |
1991 |
if (p->orig_vlan == 0) |
1992 |
send_pkt = bcm5600_send_pkt_direct; |
1993 |
else { |
1994 |
egress_untagged = p->egress_ut_bitmap & (1 << i); |
1995 |
|
1996 |
if (p->orig_vlan == -1) { |
1997 |
/* Untagged packet */ |
1998 |
if (egress_untagged) |
1999 |
send_pkt = bcm5600_send_pkt_direct; |
2000 |
else |
2001 |
send_pkt = bcm5600_send_pkt_push_dot1q; |
2002 |
} else { |
2003 |
/* Tagged packet */ |
2004 |
if (egress_untagged) |
2005 |
send_pkt = bcm5600_send_pkt_pop_dot1q; |
2006 |
else |
2007 |
send_pkt = bcm5600_send_pkt_direct; |
2008 |
} |
2009 |
} |
2010 |
|
2011 |
#if DEBUG_FORWARD > 1 |
2012 |
BCM_LOG(d,"forwarding on port %s (vector=%p)\n", |
2013 |
d->ports[i].name,send_pkt); |
2014 |
#endif |
2015 |
send_pkt(d,p,d->ports[i].nio); |
2016 |
} |
2017 |
|
2018 |
return(TRUE); |
2019 |
} |
2020 |
|
2021 |
/* Handle a received packet */ |
2022 |
static int bcm5600_handle_rx_pkt(struct nm_16esw_data *d,struct bcm5600_pkt *p) |
2023 |
{ |
2024 |
m_uint32_t *port_entry; |
2025 |
n_eth_dot1q_hdr_t *eth_hdr; |
2026 |
|
2027 |
if (!(port_entry = bcm5600_table_get_entry(d,d->t_ptable,p->ingress_port))) |
2028 |
return(FALSE); |
2029 |
|
2030 |
eth_hdr = (n_eth_dot1q_hdr_t *)p->pkt; |
2031 |
|
2032 |
/* Mirroring on Ingress ? */ |
2033 |
if (port_entry[1] & BCM5600_PTABLE_MI_FLAG) |
2034 |
bcm5600_mirror_pkt(d,p,0); |
2035 |
|
2036 |
/* Determine VLAN */ |
2037 |
if (ntohs(eth_hdr->type) != N_ETH_PROTO_DOT1Q) { |
2038 |
p->orig_vlan = -1; |
2039 |
p->real_vlan = port_entry[0] & BCM5600_PTABLE_VLAN_TAG_MASK; |
2040 |
|
2041 |
if (!(p->vlan_entry = bcm5600_vtable_get_entry_by_vlan(d,p->real_vlan))) |
2042 |
return(FALSE); |
2043 |
|
2044 |
/* TODO: 802.1p/CoS remarking */ |
2045 |
if (port_entry[4] & BCM5600_PTABLE_RPE_FLAG) { |
2046 |
} |
2047 |
} else { |
2048 |
p->orig_vlan = p->real_vlan = ntohs(eth_hdr->vlan_id) & 0xFFF; |
2049 |
|
2050 |
/* Check that this VLAN exists */ |
2051 |
if (!(p->vlan_entry = bcm5600_vtable_get_entry_by_vlan(d,p->real_vlan))) |
2052 |
return(FALSE); |
2053 |
|
2054 |
/* Check that this port is a member of this VLAN */ |
2055 |
if (!(p->vlan_entry[1] & (1 << p->ingress_port))) |
2056 |
return(FALSE); |
2057 |
} |
2058 |
|
2059 |
#if DEBUG_RECEIVE |
2060 |
BCM_LOG(d,"%s: received a packet on VLAN %u\n", |
2061 |
d->ports[p->ingress_port].name,p->real_vlan); |
2062 |
#endif |
2063 |
|
2064 |
/* No egress port at this time */ |
2065 |
p->egress_bitmap = 0; |
2066 |
|
2067 |
/* Never send back frames to the source port */ |
2068 |
p->egress_filter_bitmap = 1 << p->ingress_port; |
2069 |
|
2070 |
/* Source MAC address learning */ |
2071 |
if (!bcm5600_src_mac_learning(d,p)) |
2072 |
return(FALSE); |
2073 |
|
2074 |
/* Take forwarding decision based on destination MAC address */ |
2075 |
if (!bcm5600_dst_mac_lookup(d,p)) |
2076 |
return(FALSE); |
2077 |
|
2078 |
/* Send the packet to the egress ports */ |
2079 |
return(bcm5600_forward_pkt(d,p)); |
2080 |
} |
2081 |
|
2082 |
/* Handle a packet to transmit */ |
2083 |
static int bcm5600_handle_tx_pkt(struct nm_16esw_data *d, |
2084 |
struct bcm5600_pkt *p, |
2085 |
u_int egress_bitmap) |
2086 |
{ |
2087 |
n_eth_dot1q_hdr_t *eth_hdr; |
2088 |
|
2089 |
{ |
2090 |
eth_hdr = (n_eth_dot1q_hdr_t *)p->pkt; |
2091 |
|
2092 |
if (ntohs(eth_hdr->type) == 0x9000) { |
2093 |
printf("bcm5600_handle_tx_pkt: KEEPALIVE ????\n"); |
2094 |
return(FALSE); |
2095 |
} |
2096 |
} |
2097 |
|
2098 |
/* Never send back frames to the source port */ |
2099 |
p->egress_filter_bitmap = 1 << p->ingress_port; |
2100 |
|
2101 |
/* We take the complete forwarding decision if bit 23 is set */ |
2102 |
if (egress_bitmap & (1 << 23)) { |
2103 |
/* No egress port at this time */ |
2104 |
p->egress_bitmap = 0; |
2105 |
|
2106 |
/* The packet must be tagged so that we can determine the VLAN */ |
2107 |
eth_hdr = (n_eth_dot1q_hdr_t *)p->pkt; |
2108 |
|
2109 |
if (ntohs(eth_hdr->type) != N_ETH_PROTO_DOT1Q) { |
2110 |
BCM_LOG(d,"bcm5600_handle_tx_pkt: untagged packet ?\n"); |
2111 |
return(FALSE); |
2112 |
} |
2113 |
|
2114 |
/* Find the appropriate, check it exists (just in case) */ |
2115 |
p->orig_vlan = p->real_vlan = ntohs(eth_hdr->vlan_id) & 0xFFF; |
2116 |
|
2117 |
if (!(p->vlan_entry = bcm5600_vtable_get_entry_by_vlan(d,p->real_vlan))) |
2118 |
return(FALSE); |
2119 |
|
2120 |
#if DEBUG_TRANSMIT |
2121 |
BCM_LOG(d,"Transmitting a packet from TX ring to VLAN %u\n", |
2122 |
p->real_vlan); |
2123 |
#endif |
2124 |
|
2125 |
/* Take forwarding decision based on destination MAC address */ |
2126 |
if (!bcm5600_dst_mac_lookup(d,p)) |
2127 |
return(FALSE); |
2128 |
} else { |
2129 |
/* The egress ports are specified, send the packet natively */ |
2130 |
p->orig_vlan = 0; |
2131 |
p->egress_bitmap = egress_bitmap; |
2132 |
} |
2133 |
|
2134 |
/* Send the packet to the egress ports */ |
2135 |
return(bcm5600_forward_pkt(d,p)); |
2136 |
} |
2137 |
|
2138 |
/* Handle the TX ring */ |
2139 |
static int dev_bcm5606_handle_txring(struct nm_16esw_data *d) |
2140 |
{ |
2141 |
struct bcm5600_pkt pkt_data; |
2142 |
m_uint32_t tdes[4],txd_len; |
2143 |
|
2144 |
BCM_LOCK(d); |
2145 |
|
2146 |
if (!d->tx_current || d->tx_end_scan) { |
2147 |
BCM_UNLOCK(d); |
2148 |
return(FALSE); |
2149 |
} |
2150 |
|
2151 |
/* Read the current TX descriptor */ |
2152 |
physmem_copy_from_vm(d->vm,tdes,d->tx_current,4*sizeof(m_uint32_t)); |
2153 |
tdes[0] = vmtoh32(tdes[0]); |
2154 |
tdes[1] = vmtoh32(tdes[1]); |
2155 |
tdes[2] = vmtoh32(tdes[2]); |
2156 |
tdes[3] = vmtoh32(tdes[3]); |
2157 |
|
2158 |
#if DEBUG_TRANSMIT |
2159 |
BCM_LOG(d,"=== TRANSMIT PATH ===\n"); |
2160 |
|
2161 |
BCM_LOG(d,"tx_current=0x%8.8x, " |
2162 |
"tdes[0]=0x%8.8x, tdes[1]=0x%8.8x, tdes[2]=0x%8.8x\n", |
2163 |
d->tx_current,tdes[0],tdes[1],tdes[2]); |
2164 |
#endif |
2165 |
|
2166 |
/* Get the buffer size */ |
2167 |
txd_len = tdes[1] & 0x7FF; |
2168 |
|
2169 |
/* Check buffer size */ |
2170 |
if ((d->tx_bufsize + txd_len) >= sizeof(d->tx_buffer)) |
2171 |
goto done; |
2172 |
|
2173 |
/* Copy the packet from memory */ |
2174 |
physmem_copy_from_vm(d->vm,d->tx_buffer+d->tx_bufsize,tdes[0],txd_len); |
2175 |
d->tx_bufsize += txd_len; |
2176 |
|
2177 |
/* Packet not complete: handle it later */ |
2178 |
if (tdes[1] & BCM5600_TXD_NEOP) |
2179 |
goto done; |
2180 |
|
2181 |
#if DEBUG_TRANSMIT |
2182 |
mem_dump(d->vm->log_fd,d->tx_buffer,d->tx_bufsize); |
2183 |
#endif |
2184 |
|
2185 |
/* Transmit the packet */ |
2186 |
pkt_data.ingress_port = d->cpu_port; |
2187 |
pkt_data.pkt = d->tx_buffer; |
2188 |
pkt_data.pkt_len = d->tx_bufsize - 4; |
2189 |
pkt_data.sent_to_cpu = TRUE; |
2190 |
bcm5600_handle_tx_pkt(d,&pkt_data,tdes[2]); |
2191 |
|
2192 |
/* Reset the TX buffer (packet fully transmitted) */ |
2193 |
d->tx_bufsize = 0; |
2194 |
|
2195 |
done: |
2196 |
/* We have reached end of ring: trigger the TX underrun interrupt */ |
2197 |
if (!(tdes[1] & BCM5600_TXD_RING_CONT)) { |
2198 |
d->tx_end_scan = 1; |
2199 |
pci_dev_trigger_irq(d->vm,d->pci_dev); |
2200 |
BCM_UNLOCK(d); |
2201 |
return(TRUE); |
2202 |
} |
2203 |
|
2204 |
/* Go to the next descriptor */ |
2205 |
d->tx_current += BCM5600_TXD_SIZE; |
2206 |
BCM_UNLOCK(d); |
2207 |
return(TRUE); |
2208 |
} |
2209 |
|
2210 |
/* Handle the RX ring */ |
2211 |
static int dev_bcm5606_handle_rxring(netio_desc_t *nio, |
2212 |
u_char *pkt,ssize_t pkt_len, |
2213 |
struct nm_16esw_data *d, |
2214 |
struct bcm5600_port *port) |
2215 |
{ |
2216 |
struct bcm5600_pkt pkt_data; |
2217 |
m_uint32_t rxd_len; |
2218 |
|
2219 |
#if DEBUG_RECEIVE |
2220 |
BCM_LOG(d,"=== RECEIVE PATH ===\n"); |
2221 |
|
2222 |
BCM_LOG(d,"%s: received a packet of %ld bytes.\n", |
2223 |
port->name,(u_long)pkt_len); |
2224 |
mem_dump(d->vm->log_fd,pkt,pkt_len); |
2225 |
#endif |
2226 |
|
2227 |
BCM_LOCK(d); |
2228 |
|
2229 |
if (!d->rx_current || d->rx_end_scan) { |
2230 |
BCM_UNLOCK(d); |
2231 |
return(FALSE); |
2232 |
} |
2233 |
|
2234 |
/* Read the current TX descriptor */ |
2235 |
physmem_copy_from_vm(d->vm,pkt_data.rdes,d->rx_current, |
2236 |
(4 * sizeof(m_uint32_t))); |
2237 |
|
2238 |
pkt_data.rdes[0] = vmtoh32(pkt_data.rdes[0]); |
2239 |
pkt_data.rdes[1] = vmtoh32(pkt_data.rdes[1]); |
2240 |
pkt_data.rdes[2] = vmtoh32(pkt_data.rdes[2]); |
2241 |
pkt_data.rdes[3] = vmtoh32(pkt_data.rdes[3]); |
2242 |
|
2243 |
#if DEBUG_RECEIVE |
2244 |
BCM_LOG(d,"rx_current=0x%8.8x, " |
2245 |
"rdes[0]=0x%8.8x, rdes[1]=0x%8.8x, rdes[2]=0x%8.8x\n", |
2246 |
d->rx_current,pkt_data.rdes[0],pkt_data.rdes[1],pkt_data.rdes[2]); |
2247 |
#endif |
2248 |
|
2249 |
/* Get the buffer size */ |
2250 |
rxd_len = pkt_data.rdes[1] & 0x7FF; |
2251 |
|
2252 |
if (pkt_len > rxd_len) { |
2253 |
BCM_UNLOCK(d); |
2254 |
return(FALSE); |
2255 |
} |
2256 |
|
2257 |
/* Fill the packet info */ |
2258 |
pkt_data.ingress_port = port->id; |
2259 |
pkt_data.pkt = pkt; |
2260 |
pkt_data.pkt_len = pkt_len; |
2261 |
pkt_data.sent_to_cpu = FALSE; |
2262 |
|
2263 |
/* Handle the packet */ |
2264 |
bcm5600_handle_rx_pkt(d,&pkt_data); |
2265 |
|
2266 |
/* Signal only an interrupt when a packet has been sent to the CPU */ |
2267 |
if (pkt_data.sent_to_cpu) { |
2268 |
/* We have reached end of ring: trigger the RX underrun interrupt */ |
2269 |
if (!(pkt_data.rdes[1] & BCM5600_RXD_RING_CONT)) { |
2270 |
d->rx_end_scan = 1; |
2271 |
pci_dev_trigger_irq(d->vm,d->pci_dev); |
2272 |
BCM_UNLOCK(d); |
2273 |
return(TRUE); |
2274 |
} |
2275 |
|
2276 |
/* A packet was received */ |
2277 |
pci_dev_trigger_irq(d->vm,d->pci_dev); |
2278 |
|
2279 |
/* Go to the next descriptor */ |
2280 |
d->rx_current += BCM5600_RXD_SIZE; |
2281 |
} |
2282 |
|
2283 |
BCM_UNLOCK(d); |
2284 |
return(TRUE); |
2285 |
} |
2286 |
|
2287 |
/* pci_bcm5605_read() */ |
2288 |
static m_uint32_t pci_bcm5605_read(cpu_mips_t *cpu,struct pci_device *dev, |
2289 |
int reg) |
2290 |
{ |
2291 |
struct nm_16esw_data *d = dev->priv_data; |
2292 |
|
2293 |
switch(reg) { |
2294 |
case PCI_REG_BAR0: |
2295 |
return(d->dev->phys_addr); |
2296 |
default: |
2297 |
return(0); |
2298 |
} |
2299 |
} |
2300 |
|
2301 |
/* pci_bcm5605_write() */ |
2302 |
static void pci_bcm5605_write(cpu_mips_t *cpu,struct pci_device *dev, |
2303 |
int reg,m_uint32_t value) |
2304 |
{ |
2305 |
struct nm_16esw_data *d = dev->priv_data; |
2306 |
|
2307 |
switch(reg) { |
2308 |
case PCI_REG_BAR0: |
2309 |
vm_map_device(cpu->vm,d->dev,(m_uint64_t)value); |
2310 |
BCM_LOG(d,"BCM5600 registers are mapped at 0x%x\n",value); |
2311 |
break; |
2312 |
} |
2313 |
} |
2314 |
|
2315 |
/* Initialize a NM-16ESW module */ |
2316 |
static int dev_c3600_nm_16esw_init(c3600_t *router,char *name,u_int nm_bay) |
2317 |
{ |
2318 |
struct nm_bay_info *bay_info; |
2319 |
struct nm_16esw_data *data; |
2320 |
struct bcm5600_port *port; |
2321 |
struct vdevice *dev; |
2322 |
int i,port_id; |
2323 |
|
2324 |
/* Allocate the private data structure */ |
2325 |
if (!(data = malloc(sizeof(*data)))) { |
2326 |
fprintf(stderr,"%s: out of memory\n",name); |
2327 |
return(-1); |
2328 |
} |
2329 |
|
2330 |
memset(data,0,sizeof(*data)); |
2331 |
pthread_mutex_init(&data->lock,NULL); |
2332 |
data->name = name; |
2333 |
data->nr_port = 16; |
2334 |
data->vm = router->vm; |
2335 |
|
2336 |
/* Create the BCM5600 tables */ |
2337 |
if (bcm5600_table_create(data) == -1) |
2338 |
return(-1); |
2339 |
|
2340 |
/* Clear the various tables */ |
2341 |
bcm5600_reset_arl(data); |
2342 |
|
2343 |
data->t_ptable = bcm5600_table_find(data,BCM5600_ADDR_PTABLE0); |
2344 |
data->t_vtable = bcm5600_table_find(data,BCM5600_ADDR_VTABLE0); |
2345 |
data->t_arl = bcm5600_table_find(data,BCM5600_ADDR_ARL0); |
2346 |
data->t_marl = bcm5600_table_find(data,BCM5600_ADDR_MARL0); |
2347 |
data->t_tbmap = bcm5600_table_find(data,BCM5600_ADDR_TBMAP0); |
2348 |
data->t_ttr = bcm5600_table_find(data,BCM5600_ADDR_TTR0); |
2349 |
|
2350 |
/* Initialize ports */ |
2351 |
data->cpu_port = 27; |
2352 |
|
2353 |
for(i=0;i<data->nr_port;i++) { |
2354 |
port_id = nm16esw_port_mapping[i]; |
2355 |
|
2356 |
port = &data->ports[port_id]; |
2357 |
port->id = port_id; |
2358 |
snprintf(port->name,sizeof(port->name),"Fa%u/%d",nm_bay,i); |
2359 |
} |
2360 |
|
2361 |
/* Set the EEPROM */ |
2362 |
c3600_nm_set_eeprom(router,nm_bay,&eeprom_c3600_nm_16esw); |
2363 |
|
2364 |
/* Get PCI bus info about this bay */ |
2365 |
bay_info = c3600_nm_get_bay_info(c3600_chassis_get_id(router),nm_bay); |
2366 |
|
2367 |
if (!bay_info) { |
2368 |
fprintf(stderr,"%s: unable to get info for NM bay %u\n",name,nm_bay); |
2369 |
return(-1); |
2370 |
} |
2371 |
|
2372 |
/* Create the BCM5605 PCI device */ |
2373 |
data->pci_dev = pci_dev_add(router->nm_bay[nm_bay].pci_map,name, |
2374 |
BCM5605_PCI_VENDOR_ID,BCM5605_PCI_PRODUCT_ID, |
2375 |
0,0,C3600_NETIO_IRQ,data, |
2376 |
NULL,pci_bcm5605_read,pci_bcm5605_write); |
2377 |
|
2378 |
if (!data->pci_dev) { |
2379 |
fprintf(stderr,"%s: unable to create PCI device.\n",name); |
2380 |
return(-1); |
2381 |
} |
2382 |
|
2383 |
/* Create the BCM5605 device itself */ |
2384 |
if (!(dev = dev_create(name))) { |
2385 |
fprintf(stderr,"%s: unable to create device.\n",name); |
2386 |
return(-1); |
2387 |
} |
2388 |
|
2389 |
dev->phys_addr = 0; |
2390 |
dev->phys_len = 0x200000; |
2391 |
dev->handler = dev_bcm5605_access; |
2392 |
|
2393 |
/* Store device info */ |
2394 |
dev->priv_data = data; |
2395 |
data->dev = dev; |
2396 |
|
2397 |
/* Create the TX ring scanner */ |
2398 |
data->tx_tid = ptask_add((ptask_callback)dev_bcm5606_handle_txring, |
2399 |
data,NULL); |
2400 |
|
2401 |
/* Store device info into the router structure */ |
2402 |
return(c3600_nm_set_drvinfo(router,nm_bay,data)); |
2403 |
} |
2404 |
|
2405 |
/* Remove a NM-16ESW from the specified slot */ |
2406 |
static int dev_c3600_nm_16esw_shutdown(c3600_t *router,u_int nm_bay) |
2407 |
{ |
2408 |
struct c3600_nm_bay *bay; |
2409 |
struct nm_16esw_data *data; |
2410 |
|
2411 |
if (!(bay = c3600_nm_get_info(router,nm_bay))) |
2412 |
return(-1); |
2413 |
|
2414 |
data = bay->drv_info; |
2415 |
|
2416 |
/* Remove the NM EEPROM */ |
2417 |
c3600_nm_unset_eeprom(router,nm_bay); |
2418 |
|
2419 |
/* Stop the TX ring task */ |
2420 |
ptask_remove(data->tx_tid); |
2421 |
|
2422 |
/* Free all tables and registers */ |
2423 |
bcm5600_table_free(data); |
2424 |
bcm5600_reg_free(data); |
2425 |
free(data); |
2426 |
return(0); |
2427 |
} |
2428 |
|
2429 |
/* Bind a Network IO descriptor */ |
2430 |
static int dev_c3600_nm_16esw_set_nio(c3600_t *router,u_int nm_bay, |
2431 |
u_int port_id,netio_desc_t *nio) |
2432 |
{ |
2433 |
struct nm_16esw_data *d; |
2434 |
struct bcm5600_port *port; |
2435 |
|
2436 |
d = c3600_nm_get_drvinfo(router,nm_bay); |
2437 |
|
2438 |
if (!d || (port_id >= d->nr_port)) |
2439 |
return(-1); |
2440 |
|
2441 |
/* define the new NIO */ |
2442 |
port = &d->ports[nm16esw_port_mapping[port_id]]; |
2443 |
port->nio = nio; |
2444 |
netio_rxl_add(nio,(netio_rx_handler_t)dev_bcm5606_handle_rxring,d,port); |
2445 |
return(0); |
2446 |
} |
2447 |
|
2448 |
/* Unbind a Network IO descriptor */ |
2449 |
static int dev_c3600_nm_16esw_unset_nio(c3600_t *router,u_int nm_bay, |
2450 |
u_int port_id) |
2451 |
{ |
2452 |
struct nm_16esw_data *d; |
2453 |
struct bcm5600_port *port; |
2454 |
|
2455 |
d = c3600_nm_get_drvinfo(router,nm_bay); |
2456 |
|
2457 |
if (!d || (port_id >= d->nr_port)) |
2458 |
return(-1); |
2459 |
|
2460 |
port = &d->ports[nm16esw_port_mapping[port_id]]; |
2461 |
|
2462 |
if (port->nio) { |
2463 |
netio_rxl_remove(port->nio); |
2464 |
port->nio = NULL; |
2465 |
} |
2466 |
|
2467 |
return(0); |
2468 |
} |
2469 |
|
2470 |
/* Show debugging information */ |
2471 |
static int dev_c3600_nm_16esw_show_info(c3600_t *router,u_int nm_bay) |
2472 |
{ |
2473 |
struct nm_16esw_data *d; |
2474 |
|
2475 |
if (!(d = c3600_nm_get_drvinfo(router,nm_bay))) |
2476 |
return(-1); |
2477 |
|
2478 |
BCM_LOCK(d); |
2479 |
bcm5600_dump_main_tables(d); |
2480 |
bcm5600_mirror_show_status(d); |
2481 |
bcm5600_reg_dump(d,FALSE); |
2482 |
BCM_UNLOCK(d); |
2483 |
return(0); |
2484 |
} |
2485 |
|
2486 |
/* NM-16ESW driver */ |
2487 |
struct c3600_nm_driver dev_c3600_nm_16esw_driver = { |
2488 |
"NM-16ESW", 1, 0, |
2489 |
dev_c3600_nm_16esw_init, |
2490 |
dev_c3600_nm_16esw_shutdown, |
2491 |
dev_c3600_nm_16esw_set_nio, |
2492 |
dev_c3600_nm_16esw_unset_nio, |
2493 |
dev_c3600_nm_16esw_show_info, |
2494 |
}; |