sys/dev/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  *      @(#) $FreeBSD$
  27  *
  28  */
  29
  30 /*
  31  * FORE Systems 200-Series Adapter Support
  32  * ---------------------------------------
  33  *
  34  * Cell Processor (CP) initialization routines
  35  *
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/kernel.h>
  40 #include <sys/systm.h>
  41 #include <sys/socket.h>
  42 #include <sys/socketvar.h>
  43 #include <sys/syslog.h>
  44 #include <vm/vm.h>
  45 #include <vm/pmap.h>
  46 #include <net/if.h>
  47 #include <netatm/port.h>
  48 #include <netatm/queue.h>
  49 #include <netatm/atm.h>
  50 #include <netatm/atm_sys.h>
  51 #include <netatm/atm_sap.h>
  52 #include <netatm/atm_cm.h>
  53 #include <netatm/atm_if.h>
  54 #include <netatm/atm_stack.h>
  55 #include <netatm/atm_pcb.h>
  56 #include <netatm/atm_var.h>
  57 #include <pci/pcivar.h>
  58 #include <dev/hfa/fore.h>
  59 #include <dev/hfa/fore_aali.h>
  60 #include <dev/hfa/fore_slave.h>
  61 #include <dev/hfa/fore_stats.h>
  62 #include <dev/hfa/fore_var.h>
  63 #include <dev/hfa/fore_include.h>
  64
  65 #ifndef lint
  66 __RCSID("@(#) $FreeBSD$");
  67 #endif
  68
  69
  70 /*
  71  * Local functions
  72  */
  73 static void     fore_get_prom __P((Fore_unit *));
  74
  75
  76 /*
  77  * Begin CP Initialization
  78  *
  79  * This function will poll for the successful downloading and starting of
  80  * the CP microcode program.  After the microcode is running, we will allocate
  81  * any needed kernel memory (must do it in non-interrupt mode), build the CP
  82  * queue configurations and issue an Initialize command to the CP.
  83  *
  84  * Arguments:
  85  *      fup             pointer to device unit structure
  86  *
  87  * Returns:
  88  *      none
  89  */
  90 void
  91 fore_initialize(fup)
  92         Fore_unit       *fup;
  93 {
  94         Aali            *aap;
  95         Init_parms      *inp;
  96         caddr_t         errmsg;
  97         u_long          vers;
  98
  99         /*
 100          * Must wait until firmware has been downloaded and is running
 101          */
 102         if (CP_READ(fup->fu_mon->mon_bstat) != BOOT_RUNNING) {
 103
 104                 /*
 105                  * Try again later
 106                  */
 107                 fup->fu_thandle =
 108                         timeout((KTimeout_ret(*) __P((void *)))fore_initialize,
 109                                 (void *)fup, hz);
 110                 return;
 111         } else
 112                 callout_handle_init(&fup->fu_thandle);
 113
 114         /*
 115          * Allocate queues and whatever else is needed
 116          */
 117         if (fore_xmit_allocate(fup)) {
 118                 errmsg = "transmit queue allocation";
 119                 goto failed;
 120         }
 121         if (fore_recv_allocate(fup)) {
 122                 errmsg = "receive queue allocation";
 123                 goto failed;
 124         }
 125         if (fore_buf_allocate(fup)) {
 126                 errmsg = "buffer supply queue allocation";
 127                 goto failed;
 128         }
 129         if (fore_cmd_allocate(fup)) {
 130                 errmsg = "command queue allocation";
 131                 goto failed;
 132         }
 133
 134         /*
 135          * CP microcode is downloaded - locate shared memory interface
 136          */
 137         aap = (Aali *)(fup->fu_ram + CP_READ(fup->fu_mon->mon_appl));
 138         fup->fu_aali = aap;
 139
 140         /*
 141          * Pick out any interesting info from the microcode
 142          */
 143         vers = CP_READ(aap->aali_ucode_ver);
 144         if (vers < FORE_MIN_UCODE) {
 145                 errmsg = "unsupported microcode version";
 146                 goto failed;
 147         }
 148         snprintf(fup->fu_config.ac_firm_vers,
 149             sizeof(fup->fu_config.ac_firm_vers), "%ld.%ld.%ld",
 150                 (vers >> 16) & 0xff, (vers >> 8) & 0xff, vers & 0xff);
 151
 152 #ifdef notdef
 153         /*
 154          * Turn on CP debugging
 155          */
 156         aap->aali_hostlog = 1;
 157 #endif
 158
 159         /*
 160          * Build the initialization block
 161          */
 162         inp = &aap->aali_init;
 163         inp->init_numvcc = CP_WRITE(FORE_MAX_VCC);
 164         inp->init_cmd_elem = CP_WRITE(CMD_QUELEN);
 165         inp->init_xmit_elem = CP_WRITE(XMIT_QUELEN);
 166         inp->init_recv_elem = CP_WRITE(RECV_QUELEN);
 167         inp->init_recv_ext = CP_WRITE(RECV_EXTRA_SEGS);
 168         inp->init_xmit_ext = CP_WRITE(XMIT_EXTRA_SEGS);
 169         inp->init_buf1s.bfs_quelen = CP_WRITE(BUF1_SM_QUELEN);
 170         inp->init_buf1s.bfs_bufsize = CP_WRITE(BUF1_SM_SIZE);
 171         inp->init_buf1s.bfs_cppool = CP_WRITE(BUF1_SM_CPPOOL);
 172         inp->init_buf1s.bfs_entsize = CP_WRITE(BUF1_SM_ENTSIZE);
 173         inp->init_buf1l.bfs_quelen = CP_WRITE(BUF1_LG_QUELEN);
 174         inp->init_buf1l.bfs_bufsize = CP_WRITE(BUF1_LG_SIZE);
 175         inp->init_buf1l.bfs_cppool = CP_WRITE(BUF1_LG_CPPOOL);
 176         inp->init_buf1l.bfs_entsize = CP_WRITE(BUF1_LG_ENTSIZE);
 177         inp->init_buf2s.bfs_quelen = CP_WRITE(0);
 178         inp->init_buf2s.bfs_bufsize = CP_WRITE(0);
 179         inp->init_buf2s.bfs_cppool = CP_WRITE(0);
 180         inp->init_buf2s.bfs_entsize = CP_WRITE(0);
 181         inp->init_buf2l.bfs_quelen = CP_WRITE(0);
 182         inp->init_buf2l.bfs_bufsize = CP_WRITE(0);
 183         inp->init_buf2l.bfs_cppool = CP_WRITE(0);
 184         inp->init_buf2l.bfs_entsize = CP_WRITE(0);
 185
 186         /*
 187          * Enable device interrupts
 188          */
 189         aap->aali_intr_ena = CP_WRITE(1);
 190
 191         /*
 192          * Issue the Initialize command to the CP and wait for
 193          * the CP to interrupt to signal completion
 194          */
 195         inp->init_status = CP_WRITE(QSTAT_PENDING);
 196         inp->init_cmd = CP_WRITE(CMD_INIT | CMD_INTR_REQ);
 197         return;
 198
 199 failed:
 200         /*
 201          * Initialization failure
 202          */
 203         fore_interface_free(fup);
 204         log(LOG_ERR, "fore initialization failed: intf=%s%d, err=%s\n",
 205                 fup->fu_pif.pif_name, fup->fu_pif.pif_unit, errmsg);
 206         return;
 207 }
 208
 209
 210 /*
 211  * Complete CP Initialization
 212  *
 213  * Called after the CP has successfully completed processing of the
 214  * Initialize command.  We will now finish off our part of the
 215  * initialization process by setting up all the host-based queue
 216  * management structures.
 217  *
 218  * Called at interrupt level.
 219  *
 220  * Arguments:
 221  *      fup             pointer to device unit structure
 222  *
 223  * Returns:
 224  *      none
 225  */
 226 void
 227 fore_initialize_complete(fup)
 228         Fore_unit       *fup;
 229 {
 230         Aali            *aap = fup->fu_aali;
 231
 232         /*
 233          * Log an initialization failure
 234          */
 235         if (CP_READ(aap->aali_init.init_status) & QSTAT_ERROR) {
 236
 237                 log(LOG_ERR,
 238                         "fore initialization failed: intf=%s%d, hbeat=0x%lx\n",
 239                         fup->fu_pif.pif_name, fup->fu_pif.pif_unit,
 240                         (u_long)CP_READ(aap->aali_heartbeat));
 241                 return;
 242         }
 243
 244         ATM_DEBUG1("heap=0x%lx\n", aap->aali_heap);
 245         ATM_DEBUG1("heaplen=0x%lx\n", aap->aali_heaplen);
 246         ATM_DEBUG1("cmd_q=0x%lx\n", aap->aali_cmd_q);
 247         ATM_DEBUG1("xmit_q=0x%lx\n", aap->aali_xmit_q);
 248         ATM_DEBUG1("recv_q=0x%lx\n", aap->aali_recv_q);
 249         ATM_DEBUG1("buf1s_q=0x%lx\n", aap->aali_buf1s_q);
 250         ATM_DEBUG1("buf1l_q=0x%lx\n", aap->aali_buf1l_q);
 251         ATM_DEBUG1("buf2s_q=0x%lx\n", aap->aali_buf2s_q);
 252         ATM_DEBUG1("buf2l_q=0x%lx\n", aap->aali_buf2l_q);
 253
 254         /*
 255          * Initialize all of our queues
 256          */
 257         fore_xmit_initialize(fup);
 258         fore_recv_initialize(fup);
 259         fore_buf_initialize(fup);
 260         fore_cmd_initialize(fup);
 261
 262         /*
 263          * Mark device initialization completed
 264          */
 265         fup->fu_flags |= CUF_INITED;
 266
 267         fore_get_prom(fup);
 268         return;
 269 }
 270
 271
 272 /*
 273  * Get device PROM values from CP
 274  *
 275  * This function will issue a GET_PROM command to the CP in order to
 276  * initiate the DMA transfer of the CP's PROM structure to the host.
 277  * This will be called after CP initialization has completed.
 278  * There is (currently) no retry if this fails.
 279  *
 280  * Called at interrupt level.
 281  *
 282  * Arguments:
 283  *      fup     pointer to device unit structure
 284  *
 285  * Returns:
 286  *      none
 287  *
 288  */
 289 static void
 290 fore_get_prom(fup)
 291         Fore_unit       *fup;
 292 {
 293         H_cmd_queue     *hcp;
 294         Cmd_queue       *cqp;
 295
 296         /*
 297          * Queue command at end of command queue
 298          */
 299         hcp = fup->fu_cmd_tail;
 300         if ((*hcp->hcq_status) & QSTAT_FREE) {
 301
 302                 /*
 303                  * Queue entry available, so set our view of things up
 304                  */
 305                 hcp->hcq_code = CMD_GET_PROM;
 306                 hcp->hcq_arg = NULL;
 307                 fup->fu_cmd_tail = hcp->hcq_next;
 308
 309                 /*
 310                  * Now set the CP-resident queue entry - the CP will grab
 311                  * the command when the op-code is set.
 312                  */
 313                 cqp = hcp->hcq_cpelem;
 314                 (*hcp->hcq_status) = QSTAT_PENDING;
 315
 316                 fup->fu_promd = DMA_GET_ADDR(fup->fu_prom, sizeof(Fore_prom),
 317                         FORE_PROM_ALIGN, 0);
 318                 if (fup->fu_promd == NULL) {
 319                         fup->fu_stats->st_drv.drv_cm_nodma++;
 320                         return;
 321                 }
 322                 cqp->cmdq_prom.prom_buffer = (CP_dma) CP_WRITE(fup->fu_promd);
 323                 cqp->cmdq_prom.prom_cmd = CP_WRITE(CMD_GET_PROM | CMD_INTR_REQ);
 324
 325         } else {
 326                 /*
 327                  * Command queue full
 328                  */
 329                 fup->fu_stats->st_drv.drv_cm_full++;
 330         }
 331
 332         return;
 333 }
 334