summaryrefslogtreecommitdiffstats
path: root/sys/dev/hfa/fore_init.c
blob: edfc4b984a90ba6bb632d875d2dc0a85fa62257c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
/*
 *
 * ===================================
 * HARP  |  Host ATM Research Platform
 * ===================================
 *
 *
 * This Host ATM Research Platform ("HARP") file (the "Software") is
 * made available by Network Computing Services, Inc. ("NetworkCS")
 * "AS IS".  NetworkCS does not provide maintenance, improvements or
 * support of any kind.
 *
 * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
 * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
 * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
 * In no event shall NetworkCS be responsible for any damages, including
 * but not limited to consequential damages, arising from or relating to
 * any use of the Software or related support.
 *
 * Copyright 1994-1998 Network Computing Services, Inc.
 *
 * Copies of this Software may be made, however, the above copyright
 * notice must be reproduced on all copies.
 *
 *	@(#) $FreeBSD$
 *
 */

/*
 * FORE Systems 200-Series Adapter Support
 * ---------------------------------------
 *
 * Cell Processor (CP) initialization routines
 *
 */

#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/syslog.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <net/if.h>
#include <netatm/port.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_cm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_stack.h>
#include <netatm/atm_pcb.h>
#include <netatm/atm_var.h>
#include <pci/pcivar.h>
#include <dev/hfa/fore.h>
#include <dev/hfa/fore_aali.h>
#include <dev/hfa/fore_slave.h>
#include <dev/hfa/fore_stats.h>
#include <dev/hfa/fore_var.h>
#include <dev/hfa/fore_include.h>

#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif


/*
 * Local functions
 */
static void	fore_get_prom __P((Fore_unit *));


/*
 * Begin CP Initialization
 *
 * This function will poll for the successful downloading and starting of
 * the CP microcode program.  After the microcode is running, we will allocate
 * any needed kernel memory (must do it in non-interrupt mode), build the CP
 * queue configurations and issue an Initialize command to the CP.
 *
 * Arguments:
 *	fup		pointer to device unit structure
 *
 * Returns:
 *	none
 */
void
fore_initialize(fup)
	Fore_unit	*fup;
{
	Aali		*aap;
	Init_parms	*inp;
	caddr_t		errmsg;
	u_long		vers;

	/*
	 * Must wait until firmware has been downloaded and is running
	 */
	if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {

		/*
		 * Try again later
		 */
		fup->fu_thandle = 
			timeout((KTimeout_ret(*) __P((void *)))fore_initialize,
				(void *)fup, hz);
		return;
	} else
		callout_handle_init(&fup->fu_thandle);

	/*
	 * Allocate queues and whatever else is needed
	 */
	if (fore_xmit_allocate(fup)) {
		errmsg = "transmit queue allocation";
		goto failed;
	}
	if (fore_recv_allocate(fup)) {
		errmsg = "receive queue allocation";
		goto failed;
	}
	if (fore_buf_allocate(fup)) {
		errmsg = "buffer supply queue allocation";
		goto failed;
	}
	if (fore_cmd_allocate(fup)) {
		errmsg = "command queue allocation";
		goto failed;
	}

	/*
	 * CP microcode is downloaded - locate shared memory interface 
	 */
	aap = (Aali *)(fup->fu_ram + CP_READ(fup->fu_mon->mon_appl));
	fup->fu_aali = aap;

	/*
	 * Pick out any interesting info from the microcode
	 */
	vers = CP_READ(aap->aali_ucode_ver);
	if (vers < FORE_MIN_UCODE) {
		errmsg = "unsupported microcode version";
		goto failed;
	}
	snprintf(fup->fu_config.ac_firm_vers,
	    sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
		(vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);

#ifdef notdef
	/*
	 * Turn on CP debugging
	 */
	aap->aali_hostlog = 1;
#endif

	/*
	 * Build the initialization block
	 */
	inp = &aap->aali_init;
	inp->init_numvcc = CP_WRITE(FORE_MAX_VCC);
	inp->init_cmd_elem = CP_WRITE(CMD_QUELEN);
	inp->init_xmit_elem = CP_WRITE(XMIT_QUELEN);
	inp->init_recv_elem = CP_WRITE(RECV_QUELEN);
	inp->init_recv_ext = CP_WRITE(RECV_EXTRA_SEGS);
	inp->init_xmit_ext = CP_WRITE(XMIT_EXTRA_SEGS);
	inp->init_buf1s.bfs_quelen = CP_WRITE(BUF1_SM_QUELEN);
	inp->init_buf1s.bfs_bufsize = CP_WRITE(BUF1_SM_SIZE);
	inp->init_buf1s.bfs_cppool = CP_WRITE(BUF1_SM_CPPOOL);
	inp->init_buf1s.bfs_entsize = CP_WRITE(BUF1_SM_ENTSIZE);
	inp->init_buf1l.bfs_quelen = CP_WRITE(BUF1_LG_QUELEN);
	inp->init_buf1l.bfs_bufsize = CP_WRITE(BUF1_LG_SIZE);
	inp->init_buf1l.bfs_cppool = CP_WRITE(BUF1_LG_CPPOOL);
	inp->init_buf1l.bfs_entsize = CP_WRITE(BUF1_LG_ENTSIZE);
	inp->init_buf2s.bfs_quelen = CP_WRITE(0);
	inp->init_buf2s.bfs_bufsize = CP_WRITE(0);
	inp->init_buf2s.bfs_cppool = CP_WRITE(0);
	inp->init_buf2s.bfs_entsize = CP_WRITE(0);
	inp->init_buf2l.bfs_quelen = CP_WRITE(0);
	inp->init_buf2l.bfs_bufsize = CP_WRITE(0);
	inp->init_buf2l.bfs_cppool = CP_WRITE(0);
	inp->init_buf2l.bfs_entsize = CP_WRITE(0);

	/*
	 * Enable device interrupts
	 */
	aap->aali_intr_ena = CP_WRITE(1);

	/*
	 * Issue the Initialize command to the CP and wait for
	 * the CP to interrupt to signal completion
	 */
	inp->init_status = CP_WRITE(QSTAT_PENDING);
	inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
	return;

failed:
	/*
	 * Initialization failure
	 */
	fore_interface_free(fup);
	log(LOG_ERR, "fore initialization failed: intf=%s%d, err=%s\n",
		fup->fu_pif.pif_name, fup->fu_pif.pif_unit, errmsg);
	return;
}


/*
 * Complete CP Initialization 
 *
 * Called after the CP has successfully completed processing of the 
 * Initialize command.  We will now finish off our part of the 
 * initialization process by setting up all the host-based queue 
 * management structures.
 *
 * Called at interrupt level.
 *
 * Arguments:
 *	fup		pointer to device unit structure
 *
 * Returns:
 *	none
 */
void
fore_initialize_complete(fup)
	Fore_unit	*fup;
{
	Aali		*aap = fup->fu_aali;

	/*
	 * Log an initialization failure
	 */
	if (CP_READ(aap->aali_init.init_status) & QSTAT_ERROR) {

		log(LOG_ERR, 
			"fore initialization failed: intf=%s%d, hbeat=0x%lx\n",
			fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
			(u_long)CP_READ(aap->aali_heartbeat));
		return;
	}

	ATM_DEBUG1("heap=0x%lx\n", aap->aali_heap);
	ATM_DEBUG1("heaplen=0x%lx\n", aap->aali_heaplen);
	ATM_DEBUG1("cmd_q=0x%lx\n", aap->aali_cmd_q);
	ATM_DEBUG1("xmit_q=0x%lx\n", aap->aali_xmit_q);
	ATM_DEBUG1("recv_q=0x%lx\n", aap->aali_recv_q);
	ATM_DEBUG1("buf1s_q=0x%lx\n", aap->aali_buf1s_q);
	ATM_DEBUG1("buf1l_q=0x%lx\n", aap->aali_buf1l_q);
	ATM_DEBUG1("buf2s_q=0x%lx\n", aap->aali_buf2s_q);
	ATM_DEBUG1("buf2l_q=0x%lx\n", aap->aali_buf2l_q);

	/*
	 * Initialize all of our queues
	 */
	fore_xmit_initialize(fup);
	fore_recv_initialize(fup);
	fore_buf_initialize(fup);
	fore_cmd_initialize(fup);

	/*
	 * Mark device initialization completed
	 */
	fup->fu_flags |= CUF_INITED;

	fore_get_prom(fup);
	return;
}


/*
 * Get device PROM values from CP
 * 
 * This function will issue a GET_PROM command to the CP in order to
 * initiate the DMA transfer of the CP's PROM structure to the host.
 * This will be called after CP initialization has completed.
 * There is (currently) no retry if this fails.
 *
 * Called at interrupt level.
 *
 * Arguments:
 *	fup	pointer to device unit structure
 *
 * Returns:
 *	none
 *
 */
static void
fore_get_prom(fup)
	Fore_unit	*fup;
{
	H_cmd_queue	*hcp;
	Cmd_queue	*cqp;

	/*
	 * Queue command at end of command queue
	 */
	hcp = fup->fu_cmd_tail;
	if ((*hcp->hcq_status) & QSTAT_FREE) {

		/*
		 * Queue entry available, so set our view of things up
		 */
		hcp->hcq_code = CMD_GET_PROM;
		hcp->hcq_arg = NULL;
		fup->fu_cmd_tail = hcp->hcq_next;

		/*
		 * Now set the CP-resident queue entry - the CP will grab
		 * the command when the op-code is set.
		 */
		cqp = hcp->hcq_cpelem;
		(*hcp->hcq_status) = QSTAT_PENDING;

		fup->fu_promd = DMA_GET_ADDR(fup->fu_prom, sizeof(Fore_prom),
			FORE_PROM_ALIGN, 0);
		if (fup->fu_promd == NULL) {
			fup->fu_stats->st_drv.drv_cm_nodma++;
			return;
		}
		cqp->cmdq_prom.prom_buffer = (CP_dma) CP_WRITE(fup->fu_promd);
		cqp->cmdq_prom.prom_cmd = CP_WRITE(CMD_GET_PROM | CMD_INTR_REQ);

	} else {
		/*
		 * Command queue full
		 */
		fup->fu_stats->st_drv.drv_cm_full++;
	}

	return;
}

OpenPOWER on IntegriCloud