3 * ===================================
4 * HARP | Host ATM Research Platform
5 * ===================================
8 * This Host ATM Research Platform ("HARP") file (the "Software") is
9 * made available by Network Computing Services, Inc. ("NetworkCS")
10 * "AS IS". NetworkCS does not provide maintenance, improvements or
11 * support of any kind.
13 * NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
14 * INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
15 * AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
16 * SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
17 * In no event shall NetworkCS be responsible for any damages, including
18 * but not limited to consequential damages, arising from or relating to
19 * any use of the Software or related support.
21 * Copyright 1994-1998 Network Computing Services, Inc.
23 * Copies of this Software may be made, however, the above copyright
24 * notice must be reproduced on all copies.
26 * @(#) $FreeBSD: src/sys/dev/hfa/fore_init.c,v 1.6 1999/08/29 10:28:09 bde Exp $
27 * @(#) $DragonFly: src/sys/dev/atm/hfa/fore_init.c,v 1.8 2008/03/01 22:03:13 swildner Exp $
31 * FORE Systems 200-Series Adapter Support
32 * ---------------------------------------
34 * Cell Processor (CP) initialization routines
38 #include "fore_include.h"
43 static void fore_get_prom (Fore_unit *);
46 * Begin CP Initialization
48 * This function will poll for the successful downloading and starting of
49 * the CP microcode program. After the microcode is running, we will allocate
50 * any needed kernel memory (must do it in non-interrupt mode), build the CP
51 * queue configurations and issue an Initialize command to the CP.
54 * fup pointer to device unit structure
60 fore_initialize(void *xfup)
62 Fore_unit *fup = xfup;
69 * Must wait until firmware has been downloaded and is running
71 if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {
76 callout_reset(&fup->fu_init_timer, hz, fore_initialize, fup);
81 * Allocate queues and whatever else is needed
83 if (fore_xmit_allocate(fup)) {
84 errmsg = "transmit queue allocation";
87 if (fore_recv_allocate(fup)) {
88 errmsg = "receive queue allocation";
91 if (fore_buf_allocate(fup)) {
92 errmsg = "buffer supply queue allocation";
95 if (fore_cmd_allocate(fup)) {
96 errmsg = "command queue allocation";
101 * CP microcode is downloaded - locate shared memory interface
103 aap = (Aali *)(fup->fu_ram + CP_READ(fup->fu_mon->mon_appl));
107 * Pick out any interesting info from the microcode
109 vers = CP_READ(aap->aali_ucode_ver);
110 if (vers < FORE_MIN_UCODE) {
111 errmsg = "unsupported microcode version";
114 ksnprintf(fup->fu_config.ac_firm_vers,
115 sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
116 (vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);
120 * Turn on CP debugging
122 aap->aali_hostlog = 1;
126 * Build the initialization block
128 inp = &aap->aali_init;
129 inp->init_numvcc = CP_WRITE(FORE_MAX_VCC);
130 inp->init_cmd_elem = CP_WRITE(CMD_QUELEN);
131 inp->init_xmit_elem = CP_WRITE(XMIT_QUELEN);
132 inp->init_recv_elem = CP_WRITE(RECV_QUELEN);
133 inp->init_recv_ext = CP_WRITE(RECV_EXTRA_SEGS);
134 inp->init_xmit_ext = CP_WRITE(XMIT_EXTRA_SEGS);
135 inp->init_buf1s.bfs_quelen = CP_WRITE(BUF1_SM_QUELEN);
136 inp->init_buf1s.bfs_bufsize = CP_WRITE(BUF1_SM_SIZE);
137 inp->init_buf1s.bfs_cppool = CP_WRITE(BUF1_SM_CPPOOL);
138 inp->init_buf1s.bfs_entsize = CP_WRITE(BUF1_SM_ENTSIZE);
139 inp->init_buf1l.bfs_quelen = CP_WRITE(BUF1_LG_QUELEN);
140 inp->init_buf1l.bfs_bufsize = CP_WRITE(BUF1_LG_SIZE);
141 inp->init_buf1l.bfs_cppool = CP_WRITE(BUF1_LG_CPPOOL);
142 inp->init_buf1l.bfs_entsize = CP_WRITE(BUF1_LG_ENTSIZE);
143 inp->init_buf2s.bfs_quelen = CP_WRITE(0);
144 inp->init_buf2s.bfs_bufsize = CP_WRITE(0);
145 inp->init_buf2s.bfs_cppool = CP_WRITE(0);
146 inp->init_buf2s.bfs_entsize = CP_WRITE(0);
147 inp->init_buf2l.bfs_quelen = CP_WRITE(0);
148 inp->init_buf2l.bfs_bufsize = CP_WRITE(0);
149 inp->init_buf2l.bfs_cppool = CP_WRITE(0);
150 inp->init_buf2l.bfs_entsize = CP_WRITE(0);
153 * Enable device interrupts
155 aap->aali_intr_ena = CP_WRITE(1);
158 * Issue the Initialize command to the CP and wait for
159 * the CP to interrupt to signal completion
161 inp->init_status = CP_WRITE(QSTAT_PENDING);
162 inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
167 * Initialization failure
169 fore_interface_free(fup);
170 log(LOG_ERR, "fore initialization failed: intf=%s%d, err=%s\n",
171 fup->fu_pif.pif_name, fup->fu_pif.pif_unit, errmsg);
177 * Complete CP Initialization
179 * Called after the CP has successfully completed processing of the
180 * Initialize command. We will now finish off our part of the
181 * initialization process by setting up all the host-based queue
182 * management structures.
184 * Called at interrupt level.
187 * fup pointer to device unit structure
193 fore_initialize_complete(Fore_unit *fup)
195 Aali *aap = fup->fu_aali;
198 * Log an initialization failure
200 if (CP_READ(aap->aali_init.init_status) & QSTAT_ERROR) {
203 "fore initialization failed: intf=%s%d, hbeat=0x%lx\n",
204 fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
205 (u_long)CP_READ(aap->aali_heartbeat));
209 ATM_DEBUG1("heap=0x%lx\n", aap->aali_heap);
210 ATM_DEBUG1("heaplen=0x%lx\n", aap->aali_heaplen);
211 ATM_DEBUG1("cmd_q=0x%lx\n", aap->aali_cmd_q);
212 ATM_DEBUG1("xmit_q=0x%lx\n", aap->aali_xmit_q);
213 ATM_DEBUG1("recv_q=0x%lx\n", aap->aali_recv_q);
214 ATM_DEBUG1("buf1s_q=0x%lx\n", aap->aali_buf1s_q);
215 ATM_DEBUG1("buf1l_q=0x%lx\n", aap->aali_buf1l_q);
216 ATM_DEBUG1("buf2s_q=0x%lx\n", aap->aali_buf2s_q);
217 ATM_DEBUG1("buf2l_q=0x%lx\n", aap->aali_buf2l_q);
220 * Initialize all of our queues
222 fore_xmit_initialize(fup);
223 fore_recv_initialize(fup);
224 fore_buf_initialize(fup);
225 fore_cmd_initialize(fup);
228 * Mark device initialization completed
230 fup->fu_flags |= CUF_INITED;
237 * Get device PROM values from CP
239 * This function will issue a GET_PROM command to the CP in order to
240 * initiate the DMA transfer of the CP's PROM structure to the host.
241 * This will be called after CP initialization has completed.
242 * There is (currently) no retry if this fails.
244 * Called at interrupt level.
247 * fup pointer to device unit structure
254 fore_get_prom(Fore_unit *fup)
260 * Queue command at end of command queue
262 hcp = fup->fu_cmd_tail;
263 if ((*hcp->hcq_status) & QSTAT_FREE) {
266 * Queue entry available, so set our view of things up
268 hcp->hcq_code = CMD_GET_PROM;
270 fup->fu_cmd_tail = hcp->hcq_next;
273 * Now set the CP-resident queue entry - the CP will grab
274 * the command when the op-code is set.
276 cqp = hcp->hcq_cpelem;
277 (*hcp->hcq_status) = QSTAT_PENDING;
279 fup->fu_promd = DMA_GET_ADDR(fup->fu_prom, sizeof(Fore_prom),
281 if (fup->fu_promd == NULL) {
282 fup->fu_stats->st_drv.drv_cm_nodma++;
285 cqp->cmdq_prom.prom_buffer = (CP_dma) CP_WRITE(fup->fu_promd);
286 cqp->cmdq_prom.prom_cmd = CP_WRITE(CMD_GET_PROM | CMD_INTR_REQ);
292 fup->fu_stats->st_drv.drv_cm_full++;