sys/dev/atm/hfa/fore_init.c

   1 /*
   2  *
   3  * ===================================
   4  * HARP  |  Host ATM Research Platform
   5  * ===================================
   6  *
   7  *
   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.
  12  *
  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.
  20  *
  21  * Copyright 1994-1998 Network Computing Services, Inc.
  22  *
  23  * Copies of this Software may be made, however, the above copyright
  24  * notice must be reproduced on all copies.
  25  *
  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 1.5 2004/09/15 01:51:55 joerg Exp $
  28  */
  29
  30 /*
  31  * FORE Systems 200-Series Adapter Support
  32  * ---------------------------------------
  33  *
  34  * Cell Processor (CP) initialization routines
  35  *
  36  */
  37
  38 #include "fore_include.h"
  39
  40 /*
  41  * Local functions
  42  */
  43 #ifdef FORE_PCI
  44 static void     fore_get_prom (Fore_unit *);
  45 #endif
  46
  47
  48 /*
  49  * Begin CP Initialization
  50  *
  51  * This function will poll for the successful downloading and starting of
  52  * the CP microcode program.  After the microcode is running, we will allocate
  53  * any needed kernel memory (must do it in non-interrupt mode), build the CP
  54  * queue configurations and issue an Initialize command to the CP.
  55  *
  56  * Arguments:
  57  *      fup             pointer to device unit structure
  58  *
  59  * Returns:
  60  *      none
  61  */
  62 void
  63 fore_initialize(void *xfup)
  64 {
  65         Fore_unit       *fup = xfup;
  66         Aali            *aap;
  67         Init_parms      *inp;
  68         caddr_t         errmsg;
  69         u_long          vers;
  70
  71         /*
  72          * Must wait until firmware has been downloaded and is running
  73          */
  74         if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {
  75
  76                 /*
  77                  * Try again later
  78                  */
  79                 callout_reset(&fup->fu_init_timer, hz, fore_initialize, fup);
  80                 return;
  81         }
  82
  83         /*
  84          * Allocate queues and whatever else is needed
  85          */
  86         if (fore_xmit_allocate(fup)) {
  87                 errmsg = "transmit queue allocation";
  88                 goto failed;
  89         }
  90         if (fore_recv_allocate(fup)) {
  91                 errmsg = "receive queue allocation";
  92                 goto failed;
  93         }
  94         if (fore_buf_allocate(fup)) {
  95                 errmsg = "buffer supply queue allocation";
  96                 goto failed;
  97         }
  98         if (fore_cmd_allocate(fup)) {
  99                 errmsg = "command queue allocation";
 100                 goto failed;
 101         }
 102
 103         /*
 104          * CP microcode is downloaded - locate shared memory interface
 105          */
 106         aap = (Aali *)(fup->fu_ram + CP_READ(fup->fu_mon->mon_appl));
 107         fup->fu_aali = aap;
 108
 109         /*
 110          * Pick out any interesting info from the microcode
 111          */
 112         vers = CP_READ(aap->aali_ucode_ver);
 113         if (vers < FORE_MIN_UCODE) {
 114                 errmsg = "unsupported microcode version";
 115                 goto failed;
 116         }
 117         snprintf(fup->fu_config.ac_firm_vers,
 118             sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
 119                 (vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);
 120
 121 #ifdef notdef
 122         /*
 123          * Turn on CP debugging
 124          */
 125         aap->aali_hostlog = 1;
 126 #endif
 127
 128         /*
 129          * Build the initialization block
 130          */
 131         inp = &aap->aali_init;
 132         inp->init_numvcc = CP_WRITE(FORE_MAX_VCC);
 133         inp->init_cmd_elem = CP_WRITE(CMD_QUELEN);
 134         inp->init_xmit_elem = CP_WRITE(XMIT_QUELEN);
 135         inp->init_recv_elem = CP_WRITE(RECV_QUELEN);
 136         inp->init_recv_ext = CP_WRITE(RECV_EXTRA_SEGS);
 137         inp->init_xmit_ext = CP_WRITE(XMIT_EXTRA_SEGS);
 138         inp->init_buf1s.bfs_quelen = CP_WRITE(BUF1_SM_QUELEN);
 139         inp->init_buf1s.bfs_bufsize = CP_WRITE(BUF1_SM_SIZE);
 140         inp->init_buf1s.bfs_cppool = CP_WRITE(BUF1_SM_CPPOOL);
 141         inp->init_buf1s.bfs_entsize = CP_WRITE(BUF1_SM_ENTSIZE);
 142         inp->init_buf1l.bfs_quelen = CP_WRITE(BUF1_LG_QUELEN);
 143         inp->init_buf1l.bfs_bufsize = CP_WRITE(BUF1_LG_SIZE);
 144         inp->init_buf1l.bfs_cppool = CP_WRITE(BUF1_LG_CPPOOL);
 145         inp->init_buf1l.bfs_entsize = CP_WRITE(BUF1_LG_ENTSIZE);
 146         inp->init_buf2s.bfs_quelen = CP_WRITE(0);
 147         inp->init_buf2s.bfs_bufsize = CP_WRITE(0);
 148         inp->init_buf2s.bfs_cppool = CP_WRITE(0);
 149         inp->init_buf2s.bfs_entsize = CP_WRITE(0);
 150         inp->init_buf2l.bfs_quelen = CP_WRITE(0);
 151         inp->init_buf2l.bfs_bufsize = CP_WRITE(0);
 152         inp->init_buf2l.bfs_cppool = CP_WRITE(0);
 153         inp->init_buf2l.bfs_entsize = CP_WRITE(0);
 154
 155         /*
 156          * Enable device interrupts
 157          */
 158         aap->aali_intr_ena = CP_WRITE(1);
 159
 160         /*
 161          * Issue the Initialize command to the CP and wait for
 162          * the CP to interrupt to signal completion
 163          */
 164         inp->init_status = CP_WRITE(QSTAT_PENDING);
 165         inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
 166         return;
 167
 168 failed:
 169         /*
 170          * Initialization failure
 171          */
 172         fore_interface_free(fup);
 173         log(LOG_ERR, "fore initialization failed: intf=%s%d, err=%s\n",
 174                 fup->fu_pif.pif_name, fup->fu_pif.pif_unit, errmsg);
 175         return;
 176 }
 177
 178
 179 /*
 180  * Complete CP Initialization
 181  *
 182  * Called after the CP has successfully completed processing of the
 183  * Initialize command.  We will now finish off our part of the
 184  * initialization process by setting up all the host-based queue
 185  * management structures.
 186  *
 187  * Called at interrupt level.
 188  *
 189  * Arguments:
 190  *      fup             pointer to device unit structure
 191  *
 192  * Returns:
 193  *      none
 194  */
 195 void
 196 fore_initialize_complete(fup)
 197         Fore_unit       *fup;
 198 {
 199         Aali            *aap = fup->fu_aali;
 200
 201         /*
 202          * Log an initialization failure
 203          */
 204         if (CP_READ(aap->aali_init.init_status) & QSTAT_ERROR) {
 205
 206                 log(LOG_ERR,
 207                         "fore initialization failed: intf=%s%d, hbeat=0x%lx\n",
 208                         fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
 209                         (u_long)CP_READ(aap->aali_heartbeat));
 210                 return;
 211         }
 212
 213         ATM_DEBUG1("heap=0x%lx\n", aap->aali_heap);
 214         ATM_DEBUG1("heaplen=0x%lx\n", aap->aali_heaplen);
 215         ATM_DEBUG1("cmd_q=0x%lx\n", aap->aali_cmd_q);
 216         ATM_DEBUG1("xmit_q=0x%lx\n", aap->aali_xmit_q);
 217         ATM_DEBUG1("recv_q=0x%lx\n", aap->aali_recv_q);
 218         ATM_DEBUG1("buf1s_q=0x%lx\n", aap->aali_buf1s_q);
 219         ATM_DEBUG1("buf1l_q=0x%lx\n", aap->aali_buf1l_q);
 220         ATM_DEBUG1("buf2s_q=0x%lx\n", aap->aali_buf2s_q);
 221         ATM_DEBUG1("buf2l_q=0x%lx\n", aap->aali_buf2l_q);
 222
 223         /*
 224          * Initialize all of our queues
 225          */
 226         fore_xmit_initialize(fup);
 227         fore_recv_initialize(fup);
 228         fore_buf_initialize(fup);
 229         fore_cmd_initialize(fup);
 230
 231         /*
 232          * Mark device initialization completed
 233          */
 234         fup->fu_flags |= CUF_INITED;
 235
 236 #ifdef FORE_PCI
 237         fore_get_prom(fup);
 238 #endif
 239         return;
 240 }
 241
 242
 243 #ifdef FORE_PCI
 244 /*
 245  * Get device PROM values from CP
 246  *
 247  * This function will issue a GET_PROM command to the CP in order to
 248  * initiate the DMA transfer of the CP's PROM structure to the host.
 249  * This will be called after CP initialization has completed.
 250  * There is (currently) no retry if this fails.
 251  *
 252  * Called at interrupt level.
 253  *
 254  * Arguments:
 255  *      fup     pointer to device unit structure
 256  *
 257  * Returns:
 258  *      none
 259  *
 260  */
 261 static void
 262 fore_get_prom(fup)
 263         Fore_unit       *fup;
 264 {
 265         H_cmd_queue     *hcp;
 266         Cmd_queue       *cqp;
 267
 268         /*
 269          * Queue command at end of command queue
 270          */
 271         hcp = fup->fu_cmd_tail;
 272         if ((*hcp->hcq_status) & QSTAT_FREE) {
 273
 274                 /*
 275                  * Queue entry available, so set our view of things up
 276                  */
 277                 hcp->hcq_code = CMD_GET_PROM;
 278                 hcp->hcq_arg = NULL;
 279                 fup->fu_cmd_tail = hcp->hcq_next;
 280
 281                 /*
 282                  * Now set the CP-resident queue entry - the CP will grab
 283                  * the command when the op-code is set.
 284                  */
 285                 cqp = hcp->hcq_cpelem;
 286                 (*hcp->hcq_status) = QSTAT_PENDING;
 287
 288                 fup->fu_promd = DMA_GET_ADDR(fup->fu_prom, sizeof(Fore_prom),
 289                         FORE_PROM_ALIGN, 0);
 290                 if (fup->fu_promd == NULL) {
 291                         fup->fu_stats->st_drv.drv_cm_nodma++;
 292                         return;
 293                 }
 294                 cqp->cmdq_prom.prom_buffer = (CP_dma) CP_WRITE(fup->fu_promd);
 295                 cqp->cmdq_prom.prom_cmd = CP_WRITE(CMD_GET_PROM | CMD_INTR_REQ);
 296
 297         } else {
 298                 /*
 299                  * Command queue full
 300                  */
 301                 fup->fu_stats->st_drv.drv_cm_full++;
 302         }
 303
 304         return;
 305 }
 306 #endif  /* FORE_PCI */
 307