ia64/linux-2.6.18-xen.hg

view drivers/char/rio/rioboot.c @ 893:f994bfe9b93b

linux/blktap2: reduce TLB flush scope

c/s 885 added very coarse TLB flushing. Since these flushes always
follow single page updates, single page flushes (when available) are
sufficient.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 04 10:32:57 2009 +0100 (2009-06-04)
parents 831230e53067
children
line source
1 /*
2 ** -----------------------------------------------------------------------------
3 **
4 ** Perle Specialix driver for Linux
5 ** Ported from existing RIO Driver for SCO sources.
6 *
7 * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 **
23 ** Module : rioboot.c
24 ** SID : 1.3
25 ** Last Modified : 11/6/98 10:33:36
26 ** Retrieved : 11/6/98 10:33:48
27 **
28 ** ident @(#)rioboot.c 1.3
29 **
30 ** -----------------------------------------------------------------------------
31 */
33 #include <linux/module.h>
34 #include <linux/slab.h>
35 #include <linux/termios.h>
36 #include <linux/serial.h>
37 #include <linux/vmalloc.h>
38 #include <asm/semaphore.h>
39 #include <linux/generic_serial.h>
40 #include <linux/errno.h>
41 #include <linux/interrupt.h>
42 #include <linux/delay.h>
43 #include <asm/io.h>
44 #include <asm/system.h>
45 #include <asm/string.h>
46 #include <asm/uaccess.h>
49 #include "linux_compat.h"
50 #include "rio_linux.h"
51 #include "pkt.h"
52 #include "daemon.h"
53 #include "rio.h"
54 #include "riospace.h"
55 #include "cmdpkt.h"
56 #include "map.h"
57 #include "rup.h"
58 #include "port.h"
59 #include "riodrvr.h"
60 #include "rioinfo.h"
61 #include "func.h"
62 #include "errors.h"
63 #include "pci.h"
65 #include "parmmap.h"
66 #include "unixrup.h"
67 #include "board.h"
68 #include "host.h"
69 #include "phb.h"
70 #include "link.h"
71 #include "cmdblk.h"
72 #include "route.h"
74 static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP);
76 static const unsigned char RIOAtVec2Ctrl[] = {
77 /* 0 */ INTERRUPT_DISABLE,
78 /* 1 */ INTERRUPT_DISABLE,
79 /* 2 */ INTERRUPT_DISABLE,
80 /* 3 */ INTERRUPT_DISABLE,
81 /* 4 */ INTERRUPT_DISABLE,
82 /* 5 */ INTERRUPT_DISABLE,
83 /* 6 */ INTERRUPT_DISABLE,
84 /* 7 */ INTERRUPT_DISABLE,
85 /* 8 */ INTERRUPT_DISABLE,
86 /* 9 */ IRQ_9 | INTERRUPT_ENABLE,
87 /* 10 */ INTERRUPT_DISABLE,
88 /* 11 */ IRQ_11 | INTERRUPT_ENABLE,
89 /* 12 */ IRQ_12 | INTERRUPT_ENABLE,
90 /* 13 */ INTERRUPT_DISABLE,
91 /* 14 */ INTERRUPT_DISABLE,
92 /* 15 */ IRQ_15 | INTERRUPT_ENABLE
93 };
95 /**
96 * RIOBootCodeRTA - Load RTA boot code
97 * @p: RIO to load
98 * @rbp: Download descriptor
99 *
100 * Called when the user process initiates booting of the card firmware.
101 * Lads the firmware
102 */
104 int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)
105 {
106 int offset;
108 func_enter();
110 rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);
112 /*
113 ** Check that we have set asside enough memory for this
114 */
115 if (rbp->Count > SIXTY_FOUR_K) {
116 rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");
117 p->RIOError.Error = HOST_FILE_TOO_LARGE;
118 func_exit();
119 return -ENOMEM;
120 }
122 if (p->RIOBooting) {
123 rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n");
124 p->RIOError.Error = BOOT_IN_PROGRESS;
125 func_exit();
126 return -EBUSY;
127 }
129 /*
130 ** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary,
131 ** so calculate how far we have to move the data up the buffer
132 ** to achieve this.
133 */
134 offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % RTA_BOOT_DATA_SIZE;
136 /*
137 ** Be clean, and clear the 'unused' portion of the boot buffer,
138 ** because it will (eventually) be part of the Rta run time environment
139 ** and so should be zeroed.
140 */
141 memset(p->RIOBootPackets, 0, offset);
143 /*
144 ** Copy the data from user space into the array
145 */
147 if (copy_from_user(((u8 *)p->RIOBootPackets) + offset, rbp->DataP, rbp->Count)) {
148 rio_dprintk(RIO_DEBUG_BOOT, "Bad data copy from user space\n");
149 p->RIOError.Error = COPYIN_FAILED;
150 func_exit();
151 return -EFAULT;
152 }
154 /*
155 ** Make sure that our copy of the size includes that offset we discussed
156 ** earlier.
157 */
158 p->RIONumBootPkts = (rbp->Count + offset) / RTA_BOOT_DATA_SIZE;
159 p->RIOBootCount = rbp->Count;
161 func_exit();
162 return 0;
163 }
165 /**
166 * rio_start_card_running - host card start
167 * @HostP: The RIO to kick off
168 *
169 * Start a RIO processor unit running. Encapsulates the knowledge
170 * of the card type.
171 */
173 void rio_start_card_running(struct Host *HostP)
174 {
175 switch (HostP->Type) {
176 case RIO_AT:
177 rio_dprintk(RIO_DEBUG_BOOT, "Start ISA card running\n");
178 writeb(BOOT_FROM_RAM | EXTERNAL_BUS_ON | HostP->Mode | RIOAtVec2Ctrl[HostP->Ivec & 0xF], &HostP->Control);
179 break;
180 case RIO_PCI:
181 /*
182 ** PCI is much the same as MCA. Everything is once again memory
183 ** mapped, so we are writing to memory registers instead of io
184 ** ports.
185 */
186 rio_dprintk(RIO_DEBUG_BOOT, "Start PCI card running\n");
187 writeb(PCITpBootFromRam | PCITpBusEnable | HostP->Mode, &HostP->Control);
188 break;
189 default:
190 rio_dprintk(RIO_DEBUG_BOOT, "Unknown host type %d\n", HostP->Type);
191 break;
192 }
193 return;
194 }
196 /*
197 ** Load in the host boot code - load it directly onto all halted hosts
198 ** of the correct type.
199 **
200 ** Put your rubber pants on before messing with this code - even the magic
201 ** numbers have trouble understanding what they are doing here.
202 */
204 int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
205 {
206 struct Host *HostP;
207 u8 __iomem *Cad;
208 PARM_MAP __iomem *ParmMapP;
209 int RupN;
210 int PortN;
211 unsigned int host;
212 u8 __iomem *StartP;
213 u8 __iomem *DestP;
214 int wait_count;
215 u16 OldParmMap;
216 u16 offset; /* It is very important that this is a u16 */
217 u8 *DownCode = NULL;
218 unsigned long flags;
220 HostP = NULL; /* Assure the compiler we've initialized it */
223 /* Walk the hosts */
224 for (host = 0; host < p->RIONumHosts; host++) {
225 rio_dprintk(RIO_DEBUG_BOOT, "Attempt to boot host %d\n", host);
226 HostP = &p->RIOHosts[host];
228 rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
230 /* Don't boot hosts already running */
231 if ((HostP->Flags & RUN_STATE) != RC_WAITING) {
232 rio_dprintk(RIO_DEBUG_BOOT, "%s %d already running\n", "Host", host);
233 continue;
234 }
236 /*
237 ** Grab a pointer to the card (ioremapped)
238 */
239 Cad = HostP->Caddr;
241 /*
242 ** We are going to (try) and load in rbp->Count bytes.
243 ** The last byte will reside at p->RIOConf.HostLoadBase-1;
244 ** Therefore, we need to start copying at address
245 ** (caddr+p->RIOConf.HostLoadBase-rbp->Count)
246 */
247 StartP = &Cad[p->RIOConf.HostLoadBase - rbp->Count];
249 rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for host is %p\n", Cad);
250 rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for download is %p\n", StartP);
251 rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
252 rio_dprintk(RIO_DEBUG_BOOT, "size of download is 0x%x\n", rbp->Count);
254 /* Make sure it fits */
255 if (p->RIOConf.HostLoadBase < rbp->Count) {
256 rio_dprintk(RIO_DEBUG_BOOT, "Bin too large\n");
257 p->RIOError.Error = HOST_FILE_TOO_LARGE;
258 func_exit();
259 return -EFBIG;
260 }
261 /*
262 ** Ensure that the host really is stopped.
263 ** Disable it's external bus & twang its reset line.
264 */
265 RIOHostReset(HostP->Type, HostP->CardP, HostP->Slot);
267 /*
268 ** Copy the data directly from user space to the SRAM.
269 ** This ain't going to be none too clever if the download
270 ** code is bigger than this segment.
271 */
272 rio_dprintk(RIO_DEBUG_BOOT, "Copy in code\n");
274 /* Buffer to local memory as we want to use I/O space and
275 some cards only do 8 or 16 bit I/O */
277 DownCode = vmalloc(rbp->Count);
278 if (!DownCode) {
279 p->RIOError.Error = NOT_ENOUGH_CORE_FOR_PCI_COPY;
280 func_exit();
281 return -ENOMEM;
282 }
283 if (copy_from_user(DownCode, rbp->DataP, rbp->Count)) {
284 kfree(DownCode);
285 p->RIOError.Error = COPYIN_FAILED;
286 func_exit();
287 return -EFAULT;
288 }
289 HostP->Copy(DownCode, StartP, rbp->Count);
290 vfree(DownCode);
292 rio_dprintk(RIO_DEBUG_BOOT, "Copy completed\n");
294 /*
295 ** S T O P !
296 **
297 ** Upto this point the code has been fairly rational, and possibly
298 ** even straight forward. What follows is a pile of crud that will
299 ** magically turn into six bytes of transputer assembler. Normally
300 ** you would expect an array or something, but, being me, I have
301 ** chosen [been told] to use a technique whereby the startup code
302 ** will be correct if we change the loadbase for the code. Which
303 ** brings us onto another issue - the loadbase is the *end* of the
304 ** code, not the start.
305 **
306 ** If I were you I wouldn't start from here.
307 */
309 /*
310 ** We now need to insert a short boot section into
311 ** the memory at the end of Sram2. This is normally (de)composed
312 ** of the last eight bytes of the download code. The
313 ** download has been assembled/compiled to expect to be
314 ** loaded from 0x7FFF downwards. We have loaded it
315 ** at some other address. The startup code goes into the small
316 ** ram window at Sram2, in the last 8 bytes, which are really
317 ** at addresses 0x7FF8-0x7FFF.
318 **
319 ** If the loadbase is, say, 0x7C00, then we need to branch to
320 ** address 0x7BFE to run the host.bin startup code. We assemble
321 ** this jump manually.
322 **
323 ** The two byte sequence 60 08 is loaded into memory at address
324 ** 0x7FFE,F. This is a local branch to location 0x7FF8 (60 is nfix 0,
325 ** which adds '0' to the .O register, complements .O, and then shifts
326 ** it left by 4 bit positions, 08 is a jump .O+8 instruction. This will
327 ** add 8 to .O (which was 0xFFF0), and will branch RELATIVE to the new
328 ** location. Now, the branch starts from the value of .PC (or .IP or
329 ** whatever the bloody register is called on this chip), and the .PC
330 ** will be pointing to the location AFTER the branch, in this case
331 ** .PC == 0x8000, so the branch will be to 0x8000+0xFFF8 = 0x7FF8.
332 **
333 ** A long branch is coded at 0x7FF8. This consists of loading a four
334 ** byte offset into .O using nfix (as above) and pfix operators. The
335 ** pfix operates in exactly the same way as the nfix operator, but
336 ** without the complement operation. The offset, of course, must be
337 ** relative to the address of the byte AFTER the branch instruction,
338 ** which will be (urm) 0x7FFC, so, our final destination of the branch
339 ** (loadbase-2), has to be reached from here. Imagine that the loadbase
340 ** is 0x7C00 (which it is), then we will need to branch to 0x7BFE (which
341 ** is the first byte of the initial two byte short local branch of the
342 ** download code).
343 **
344 ** To code a jump from 0x7FFC (which is where the branch will start
345 ** from) to 0x7BFE, we will need to branch 0xFC02 bytes (0x7FFC+0xFC02)=
346 ** 0x7BFE.
347 ** This will be coded as four bytes:
348 ** 60 2C 20 02
349 ** being nfix .O+0
350 ** pfix .O+C
351 ** pfix .O+0
352 ** jump .O+2
353 **
354 ** The nfix operator is used, so that the startup code will be
355 ** compatible with the whole Tp family. (lies, damn lies, it'll never
356 ** work in a month of Sundays).
357 **
358 ** The nfix nyble is the 1s complement of the nyble value you
359 ** want to load - in this case we wanted 'F' so we nfix loaded '0'.
360 */
363 /*
364 ** Dest points to the top 8 bytes of Sram2. The Tp jumps
365 ** to 0x7FFE at reset time, and starts executing. This is
366 ** a short branch to 0x7FF8, where a long branch is coded.
367 */
369 DestP = &Cad[0x7FF8]; /* <<<---- READ THE ABOVE COMMENTS */
371 #define NFIX(N) (0x60 | (N)) /* .O = (~(.O + N))<<4 */
372 #define PFIX(N) (0x20 | (N)) /* .O = (.O + N)<<4 */
373 #define JUMP(N) (0x00 | (N)) /* .PC = .PC + .O */
375 /*
376 ** 0x7FFC is the address of the location following the last byte of
377 ** the four byte jump instruction.
378 ** READ THE ABOVE COMMENTS
379 **
380 ** offset is (TO-FROM) % MEMSIZE, but with compound buggering about.
381 ** Memsize is 64K for this range of Tp, so offset is a short (unsigned,
382 ** cos I don't understand 2's complement).
383 */
384 offset = (p->RIOConf.HostLoadBase - 2) - 0x7FFC;
386 writeb(NFIX(((unsigned short) (~offset) >> (unsigned short) 12) & 0xF), DestP);
387 writeb(PFIX((offset >> 8) & 0xF), DestP + 1);
388 writeb(PFIX((offset >> 4) & 0xF), DestP + 2);
389 writeb(JUMP(offset & 0xF), DestP + 3);
391 writeb(NFIX(0), DestP + 6);
392 writeb(JUMP(8), DestP + 7);
394 rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
395 rio_dprintk(RIO_DEBUG_BOOT, "startup offset is 0x%x\n", offset);
397 /*
398 ** Flag what is going on
399 */
400 HostP->Flags &= ~RUN_STATE;
401 HostP->Flags |= RC_STARTUP;
403 /*
404 ** Grab a copy of the current ParmMap pointer, so we
405 ** can tell when it has changed.
406 */
407 OldParmMap = readw(&HostP->__ParmMapR);
409 rio_dprintk(RIO_DEBUG_BOOT, "Original parmmap is 0x%x\n", OldParmMap);
411 /*
412 ** And start it running (I hope).
413 ** As there is nothing dodgy or obscure about the
414 ** above code, this is guaranteed to work every time.
415 */
416 rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
418 rio_start_card_running(HostP);
420 rio_dprintk(RIO_DEBUG_BOOT, "Set control port\n");
422 /*
423 ** Now, wait for upto five seconds for the Tp to setup the parmmap
424 ** pointer:
425 */
426 for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && (readw(&HostP->__ParmMapR) == OldParmMap); wait_count++) {
427 rio_dprintk(RIO_DEBUG_BOOT, "Checkout %d, 0x%x\n", wait_count, readw(&HostP->__ParmMapR));
428 mdelay(100);
430 }
432 /*
433 ** If the parmmap pointer is unchanged, then the host code
434 ** has crashed & burned in a really spectacular way
435 */
436 if (readw(&HostP->__ParmMapR) == OldParmMap) {
437 rio_dprintk(RIO_DEBUG_BOOT, "parmmap 0x%x\n", readw(&HostP->__ParmMapR));
438 rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail\n");
439 HostP->Flags &= ~RUN_STATE;
440 HostP->Flags |= RC_STUFFED;
441 RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
442 continue;
443 }
445 rio_dprintk(RIO_DEBUG_BOOT, "Running 0x%x\n", readw(&HostP->__ParmMapR));
447 /*
448 ** Well, the board thought it was OK, and setup its parmmap
449 ** pointer. For the time being, we will pretend that this
450 ** board is running, and check out what the error flag says.
451 */
453 /*
454 ** Grab a 32 bit pointer to the parmmap structure
455 */
456 ParmMapP = (PARM_MAP __iomem *) RIO_PTR(Cad, readw(&HostP->__ParmMapR));
457 rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
458 ParmMapP = (PARM_MAP __iomem *)(Cad + readw(&HostP->__ParmMapR));
459 rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
461 /*
462 ** The links entry should be 0xFFFF; we set it up
463 ** with a mask to say how many PHBs to use, and
464 ** which links to use.
465 */
466 if (readw(&ParmMapP->links) != 0xFFFF) {
467 rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
468 rio_dprintk(RIO_DEBUG_BOOT, "Links = 0x%x\n", readw(&ParmMapP->links));
469 HostP->Flags &= ~RUN_STATE;
470 HostP->Flags |= RC_STUFFED;
471 RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
472 continue;
473 }
475 writew(RIO_LINK_ENABLE, &ParmMapP->links);
477 /*
478 ** now wait for the card to set all the parmmap->XXX stuff
479 ** this is a wait of upto two seconds....
480 */
481 rio_dprintk(RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n", p->RIOConf.StartupTime);
482 HostP->timeout_id = 0;
483 for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && !readw(&ParmMapP->init_done); wait_count++) {
484 rio_dprintk(RIO_DEBUG_BOOT, "Waiting for init_done\n");
485 mdelay(100);
486 }
487 rio_dprintk(RIO_DEBUG_BOOT, "OK! init_done!\n");
489 if (readw(&ParmMapP->error) != E_NO_ERROR || !readw(&ParmMapP->init_done)) {
490 rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
491 rio_dprintk(RIO_DEBUG_BOOT, "Timedout waiting for init_done\n");
492 HostP->Flags &= ~RUN_STATE;
493 HostP->Flags |= RC_STUFFED;
494 RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
495 continue;
496 }
498 rio_dprintk(RIO_DEBUG_BOOT, "Got init_done\n");
500 /*
501 ** It runs! It runs!
502 */
503 rio_dprintk(RIO_DEBUG_BOOT, "Host ID %x Running\n", HostP->UniqueNum);
505 /*
506 ** set the time period between interrupts.
507 */
508 writew(p->RIOConf.Timer, &ParmMapP->timer);
510 /*
511 ** Translate all the 16 bit pointers in the __ParmMapR into
512 ** 32 bit pointers for the driver in ioremap space.
513 */
514 HostP->ParmMapP = ParmMapP;
515 HostP->PhbP = (struct PHB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_ptr));
516 HostP->RupP = (struct RUP __iomem *) RIO_PTR(Cad, readw(&ParmMapP->rups));
517 HostP->PhbNumP = (unsigned short __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_num_ptr));
518 HostP->LinkStrP = (struct LPB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->link_str_ptr));
520 /*
521 ** point the UnixRups at the real Rups
522 */
523 for (RupN = 0; RupN < MAX_RUP; RupN++) {
524 HostP->UnixRups[RupN].RupP = &HostP->RupP[RupN];
525 HostP->UnixRups[RupN].Id = RupN + 1;
526 HostP->UnixRups[RupN].BaseSysPort = NO_PORT;
527 spin_lock_init(&HostP->UnixRups[RupN].RupLock);
528 }
530 for (RupN = 0; RupN < LINKS_PER_UNIT; RupN++) {
531 HostP->UnixRups[RupN + MAX_RUP].RupP = &HostP->LinkStrP[RupN].rup;
532 HostP->UnixRups[RupN + MAX_RUP].Id = 0;
533 HostP->UnixRups[RupN + MAX_RUP].BaseSysPort = NO_PORT;
534 spin_lock_init(&HostP->UnixRups[RupN + MAX_RUP].RupLock);
535 }
537 /*
538 ** point the PortP->Phbs at the real Phbs
539 */
540 for (PortN = p->RIOFirstPortsMapped; PortN < p->RIOLastPortsMapped + PORTS_PER_RTA; PortN++) {
541 if (p->RIOPortp[PortN]->HostP == HostP) {
542 struct Port *PortP = p->RIOPortp[PortN];
543 struct PHB __iomem *PhbP;
544 /* int oldspl; */
546 if (!PortP->Mapped)
547 continue;
549 PhbP = &HostP->PhbP[PortP->HostPort];
550 rio_spin_lock_irqsave(&PortP->portSem, flags);
552 PortP->PhbP = PhbP;
554 PortP->TxAdd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_add));
555 PortP->TxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_start));
556 PortP->TxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_end));
557 PortP->RxRemove = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_remove));
558 PortP->RxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_start));
559 PortP->RxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_end));
561 rio_spin_unlock_irqrestore(&PortP->portSem, flags);
562 /*
563 ** point the UnixRup at the base SysPort
564 */
565 if (!(PortN % PORTS_PER_RTA))
566 HostP->UnixRups[PortP->RupNum].BaseSysPort = PortN;
567 }
568 }
570 rio_dprintk(RIO_DEBUG_BOOT, "Set the card running... \n");
571 /*
572 ** last thing - show the world that everything is in place
573 */
574 HostP->Flags &= ~RUN_STATE;
575 HostP->Flags |= RC_RUNNING;
576 }
577 /*
578 ** MPX always uses a poller. This is actually patched into the system
579 ** configuration and called directly from each clock tick.
580 **
581 */
582 p->RIOPolling = 1;
584 p->RIOSystemUp++;
586 rio_dprintk(RIO_DEBUG_BOOT, "Done everything %x\n", HostP->Ivec);
587 func_exit();
588 return 0;
589 }
593 /**
594 * RIOBootRup - Boot an RTA
595 * @p: rio we are working with
596 * @Rup: Rup number
597 * @HostP: host object
598 * @PacketP: packet to use
599 *
600 * If we have successfully processed this boot, then
601 * return 1. If we havent, then return 0.
602 */
604 int RIOBootRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct PKT __iomem *PacketP)
605 {
606 struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *) PacketP->data;
607 struct PktCmd_M *PktReplyP;
608 struct CmdBlk *CmdBlkP;
609 unsigned int sequence;
611 /*
612 ** If we haven't been told what to boot, we can't boot it.
613 */
614 if (p->RIONumBootPkts == 0) {
615 rio_dprintk(RIO_DEBUG_BOOT, "No RTA code to download yet\n");
616 return 0;
617 }
619 /*
620 ** Special case of boot completed - if we get one of these then we
621 ** don't need a command block. For all other cases we do, so handle
622 ** this first and then get a command block, then handle every other
623 ** case, relinquishing the command block if disaster strikes!
624 */
625 if ((readb(&PacketP->len) & PKT_CMD_BIT) && (readb(&PktCmdP->Command) == BOOT_COMPLETED))
626 return RIOBootComplete(p, HostP, Rup, PktCmdP);
628 /*
629 ** Try to allocate a command block. This is in kernel space
630 */
631 if (!(CmdBlkP = RIOGetCmdBlk())) {
632 rio_dprintk(RIO_DEBUG_BOOT, "No command blocks to boot RTA! come back later.\n");
633 return 0;
634 }
636 /*
637 ** Fill in the default info on the command block
638 */
639 CmdBlkP->Packet.dest_unit = Rup < (unsigned short) MAX_RUP ? Rup : 0;
640 CmdBlkP->Packet.dest_port = BOOT_RUP;
641 CmdBlkP->Packet.src_unit = 0;
642 CmdBlkP->Packet.src_port = BOOT_RUP;
644 CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL;
645 PktReplyP = (struct PktCmd_M *) CmdBlkP->Packet.data;
647 /*
648 ** process COMMANDS on the boot rup!
649 */
650 if (readb(&PacketP->len) & PKT_CMD_BIT) {
651 /*
652 ** We only expect one type of command - a BOOT_REQUEST!
653 */
654 if (readb(&PktCmdP->Command) != BOOT_REQUEST) {
655 rio_dprintk(RIO_DEBUG_BOOT, "Unexpected command %d on BOOT RUP %d of host %Zd\n", readb(&PktCmdP->Command), Rup, HostP - p->RIOHosts);
656 RIOFreeCmdBlk(CmdBlkP);
657 return 1;
658 }
660 /*
661 ** Build a Boot Sequence command block
662 **
663 ** We no longer need to use "Boot Mode", we'll always allow
664 ** boot requests - the boot will not complete if the device
665 ** appears in the bindings table.
666 **
667 ** We'll just (always) set the command field in packet reply
668 ** to allow an attempted boot sequence :
669 */
670 PktReplyP->Command = BOOT_SEQUENCE;
672 PktReplyP->BootSequence.NumPackets = p->RIONumBootPkts;
673 PktReplyP->BootSequence.LoadBase = p->RIOConf.RtaLoadBase;
674 PktReplyP->BootSequence.CodeSize = p->RIOBootCount;
676 CmdBlkP->Packet.len = BOOT_SEQUENCE_LEN | PKT_CMD_BIT;
678 memcpy((void *) &CmdBlkP->Packet.data[BOOT_SEQUENCE_LEN], "BOOT", 4);
680 rio_dprintk(RIO_DEBUG_BOOT, "Boot RTA on Host %Zd Rup %d - %d (0x%x) packets to 0x%x\n", HostP - p->RIOHosts, Rup, p->RIONumBootPkts, p->RIONumBootPkts, p->RIOConf.RtaLoadBase);
682 /*
683 ** If this host is in slave mode, send the RTA an invalid boot
684 ** sequence command block to force it to kill the boot. We wait
685 ** for half a second before sending this packet to prevent the RTA
686 ** attempting to boot too often. The master host should then grab
687 ** the RTA and make it its own.
688 */
689 p->RIOBooting++;
690 RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
691 return 1;
692 }
694 /*
695 ** It is a request for boot data.
696 */
697 sequence = readw(&PktCmdP->Sequence);
699 rio_dprintk(RIO_DEBUG_BOOT, "Boot block %d on Host %Zd Rup%d\n", sequence, HostP - p->RIOHosts, Rup);
701 if (sequence >= p->RIONumBootPkts) {
702 rio_dprintk(RIO_DEBUG_BOOT, "Got a request for packet %d, max is %d\n", sequence, p->RIONumBootPkts);
703 }
705 PktReplyP->Sequence = sequence;
706 memcpy(PktReplyP->BootData, p->RIOBootPackets[p->RIONumBootPkts - sequence - 1], RTA_BOOT_DATA_SIZE);
707 CmdBlkP->Packet.len = PKT_MAX_DATA_LEN;
708 RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
709 return 1;
710 }
712 /**
713 * RIOBootComplete - RTA boot is done
714 * @p: RIO we are working with
715 * @HostP: Host structure
716 * @Rup: RUP being used
717 * @PktCmdP: Packet command that was used
718 *
719 * This function is called when an RTA been booted.
720 * If booted by a host, HostP->HostUniqueNum is the booting host.
721 * If booted by an RTA, HostP->Mapping[Rup].RtaUniqueNum is the booting RTA.
722 * RtaUniq is the booted RTA.
723 */
725 static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP)
726 {
727 struct Map *MapP = NULL;
728 struct Map *MapP2 = NULL;
729 int Flag;
730 int found;
731 int host, rta;
732 int EmptySlot = -1;
733 int entry, entry2;
734 char *MyType, *MyName;
735 unsigned int MyLink;
736 unsigned short RtaType;
737 u32 RtaUniq = (readb(&PktCmdP->UniqNum[0])) + (readb(&PktCmdP->UniqNum[1]) << 8) + (readb(&PktCmdP->UniqNum[2]) << 16) + (readb(&PktCmdP->UniqNum[3]) << 24);
739 p->RIOBooting = 0;
741 rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot completed - BootInProgress now %d\n", p->RIOBooting);
743 /*
744 ** Determine type of unit (16/8 port RTA).
745 */
747 RtaType = GetUnitType(RtaUniq);
748 if (Rup >= (unsigned short) MAX_RUP)
749 rio_dprintk(RIO_DEBUG_BOOT, "RIO: Host %s has booted an RTA(%d) on link %c\n", HostP->Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
750 else
751 rio_dprintk(RIO_DEBUG_BOOT, "RIO: RTA %s has booted an RTA(%d) on link %c\n", HostP->Mapping[Rup].Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
753 rio_dprintk(RIO_DEBUG_BOOT, "UniqNum is 0x%x\n", RtaUniq);
755 if (RtaUniq == 0x00000000 || RtaUniq == 0xffffffff) {
756 rio_dprintk(RIO_DEBUG_BOOT, "Illegal RTA Uniq Number\n");
757 return 1;
758 }
760 /*
761 ** If this RTA has just booted an RTA which doesn't belong to this
762 ** system, or the system is in slave mode, do not attempt to create
763 ** a new table entry for it.
764 */
766 if (!RIOBootOk(p, HostP, RtaUniq)) {
767 MyLink = readb(&PktCmdP->LinkNum);
768 if (Rup < (unsigned short) MAX_RUP) {
769 /*
770 ** RtaUniq was clone booted (by this RTA). Instruct this RTA
771 ** to hold off further attempts to boot on this link for 30
772 ** seconds.
773 */
774 if (RIOSuspendBootRta(HostP, HostP->Mapping[Rup].ID, MyLink)) {
775 rio_dprintk(RIO_DEBUG_BOOT, "RTA failed to suspend booting on link %c\n", 'A' + MyLink);
776 }
777 } else
778 /*
779 ** RtaUniq was booted by this host. Set the booting link
780 ** to hold off for 30 seconds to give another unit a
781 ** chance to boot it.
782 */
783 writew(30, &HostP->LinkStrP[MyLink].WaitNoBoot);
784 rio_dprintk(RIO_DEBUG_BOOT, "RTA %x not owned - suspend booting down link %c on unit %x\n", RtaUniq, 'A' + MyLink, HostP->Mapping[Rup].RtaUniqueNum);
785 return 1;
786 }
788 /*
789 ** Check for a SLOT_IN_USE entry for this RTA attached to the
790 ** current host card in the driver table.
791 **
792 ** If it exists, make a note that we have booted it. Other parts of
793 ** the driver are interested in this information at a later date,
794 ** in particular when the booting RTA asks for an ID for this unit,
795 ** we must have set the BOOTED flag, and the NEWBOOT flag is used
796 ** to force an open on any ports that where previously open on this
797 ** unit.
798 */
799 for (entry = 0; entry < MAX_RUP; entry++) {
800 unsigned int sysport;
802 if ((HostP->Mapping[entry].Flags & SLOT_IN_USE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
803 HostP->Mapping[entry].Flags |= RTA_BOOTED | RTA_NEWBOOT;
804 if ((sysport = HostP->Mapping[entry].SysPort) != NO_PORT) {
805 if (sysport < p->RIOFirstPortsBooted)
806 p->RIOFirstPortsBooted = sysport;
807 if (sysport > p->RIOLastPortsBooted)
808 p->RIOLastPortsBooted = sysport;
809 /*
810 ** For a 16 port RTA, check the second bank of 8 ports
811 */
812 if (RtaType == TYPE_RTA16) {
813 entry2 = HostP->Mapping[entry].ID2 - 1;
814 HostP->Mapping[entry2].Flags |= RTA_BOOTED | RTA_NEWBOOT;
815 sysport = HostP->Mapping[entry2].SysPort;
816 if (sysport < p->RIOFirstPortsBooted)
817 p->RIOFirstPortsBooted = sysport;
818 if (sysport > p->RIOLastPortsBooted)
819 p->RIOLastPortsBooted = sysport;
820 }
821 }
822 if (RtaType == TYPE_RTA16)
823 rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given IDs %d+%d\n", entry + 1, entry2 + 1);
824 else
825 rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given ID %d\n", entry + 1);
826 return 1;
827 }
828 }
830 rio_dprintk(RIO_DEBUG_BOOT, "RTA not configured for this host\n");
832 if (Rup >= (unsigned short) MAX_RUP) {
833 /*
834 ** It was a host that did the booting
835 */
836 MyType = "Host";
837 MyName = HostP->Name;
838 } else {
839 /*
840 ** It was an RTA that did the booting
841 */
842 MyType = "RTA";
843 MyName = HostP->Mapping[Rup].Name;
844 }
845 MyLink = readb(&PktCmdP->LinkNum);
847 /*
848 ** There is no SLOT_IN_USE entry for this RTA attached to the current
849 ** host card in the driver table.
850 **
851 ** Check for a SLOT_TENTATIVE entry for this RTA attached to the
852 ** current host card in the driver table.
853 **
854 ** If we find one, then we re-use that slot.
855 */
856 for (entry = 0; entry < MAX_RUP; entry++) {
857 if ((HostP->Mapping[entry].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
858 if (RtaType == TYPE_RTA16) {
859 entry2 = HostP->Mapping[entry].ID2 - 1;
860 if ((HostP->Mapping[entry2].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry2].RtaUniqueNum == RtaUniq))
861 rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slots (%d+%d)\n", entry, entry2);
862 else
863 continue;
864 } else
865 rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slot (%d)\n", entry);
866 if (!p->RIONoMessage)
867 printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
868 return 1;
869 }
870 }
872 /*
873 ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
874 ** attached to the current host card in the driver table.
875 **
876 ** Check if there is a SLOT_IN_USE or SLOT_TENTATIVE entry on another
877 ** host for this RTA in the driver table.
878 **
879 ** For a SLOT_IN_USE entry on another host, we need to delete the RTA
880 ** entry from the other host and add it to this host (using some of
881 ** the functions from table.c which do this).
882 ** For a SLOT_TENTATIVE entry on another host, we must cope with the
883 ** following scenario:
884 **
885 ** + Plug 8 port RTA into host A. (This creates SLOT_TENTATIVE entry
886 ** in table)
887 ** + Unplug RTA and plug into host B. (We now have 2 SLOT_TENTATIVE
888 ** entries)
889 ** + Configure RTA on host B. (This slot now becomes SLOT_IN_USE)
890 ** + Unplug RTA and plug back into host A.
891 ** + Configure RTA on host A. We now have the same RTA configured
892 ** with different ports on two different hosts.
893 */
894 rio_dprintk(RIO_DEBUG_BOOT, "Have we seen RTA %x before?\n", RtaUniq);
895 found = 0;
896 Flag = 0; /* Convince the compiler this variable is initialized */
897 for (host = 0; !found && (host < p->RIONumHosts); host++) {
898 for (rta = 0; rta < MAX_RUP; rta++) {
899 if ((p->RIOHosts[host].Mapping[rta].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) && (p->RIOHosts[host].Mapping[rta].RtaUniqueNum == RtaUniq)) {
900 Flag = p->RIOHosts[host].Mapping[rta].Flags;
901 MapP = &p->RIOHosts[host].Mapping[rta];
902 if (RtaType == TYPE_RTA16) {
903 MapP2 = &p->RIOHosts[host].Mapping[MapP->ID2 - 1];
904 rio_dprintk(RIO_DEBUG_BOOT, "This RTA is units %d+%d from host %s\n", rta + 1, MapP->ID2, p->RIOHosts[host].Name);
905 } else
906 rio_dprintk(RIO_DEBUG_BOOT, "This RTA is unit %d from host %s\n", rta + 1, p->RIOHosts[host].Name);
907 found = 1;
908 break;
909 }
910 }
911 }
913 /*
914 ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
915 ** attached to the current host card in the driver table.
916 **
917 ** If we have not found a SLOT_IN_USE or SLOT_TENTATIVE entry on
918 ** another host for this RTA in the driver table...
919 **
920 ** Check for a SLOT_IN_USE entry for this RTA in the config table.
921 */
922 if (!MapP) {
923 rio_dprintk(RIO_DEBUG_BOOT, "Look for RTA %x in RIOSavedTable\n", RtaUniq);
924 for (rta = 0; rta < TOTAL_MAP_ENTRIES; rta++) {
925 rio_dprintk(RIO_DEBUG_BOOT, "Check table entry %d (%x)", rta, p->RIOSavedTable[rta].RtaUniqueNum);
927 if ((p->RIOSavedTable[rta].Flags & SLOT_IN_USE) && (p->RIOSavedTable[rta].RtaUniqueNum == RtaUniq)) {
928 MapP = &p->RIOSavedTable[rta];
929 Flag = p->RIOSavedTable[rta].Flags;
930 if (RtaType == TYPE_RTA16) {
931 for (entry2 = rta + 1; entry2 < TOTAL_MAP_ENTRIES; entry2++) {
932 if (p->RIOSavedTable[entry2].RtaUniqueNum == RtaUniq)
933 break;
934 }
935 MapP2 = &p->RIOSavedTable[entry2];
936 rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entries %d+%d\n", rta, entry2);
937 } else
938 rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entry %d\n", rta);
939 break;
940 }
941 }
942 }
944 /*
945 ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
946 ** attached to the current host card in the driver table.
947 **
948 ** We may have found a SLOT_IN_USE entry on another host for this
949 ** RTA in the config table, or a SLOT_IN_USE or SLOT_TENTATIVE entry
950 ** on another host for this RTA in the driver table.
951 **
952 ** Check the driver table for room to fit this newly discovered RTA.
953 ** RIOFindFreeID() first looks for free slots and if it does not
954 ** find any free slots it will then attempt to oust any
955 ** tentative entry in the table.
956 */
957 EmptySlot = 1;
958 if (RtaType == TYPE_RTA16) {
959 if (RIOFindFreeID(p, HostP, &entry, &entry2) == 0) {
960 RIODefaultName(p, HostP, entry);
961 rio_fill_host_slot(entry, entry2, RtaUniq, HostP);
962 EmptySlot = 0;
963 }
964 } else {
965 if (RIOFindFreeID(p, HostP, &entry, NULL) == 0) {
966 RIODefaultName(p, HostP, entry);
967 rio_fill_host_slot(entry, 0, RtaUniq, HostP);
968 EmptySlot = 0;
969 }
970 }
972 /*
973 ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
974 ** attached to the current host card in the driver table.
975 **
976 ** If we found a SLOT_IN_USE entry on another host for this
977 ** RTA in the config or driver table, and there are enough free
978 ** slots in the driver table, then we need to move it over and
979 ** delete it from the other host.
980 ** If we found a SLOT_TENTATIVE entry on another host for this
981 ** RTA in the driver table, just delete the other host entry.
982 */
983 if (EmptySlot == 0) {
984 if (MapP) {
985 if (Flag & SLOT_IN_USE) {
986 rio_dprintk(RIO_DEBUG_BOOT, "This RTA configured on another host - move entry to current host (1)\n");
987 HostP->Mapping[entry].SysPort = MapP->SysPort;
988 memcpy(HostP->Mapping[entry].Name, MapP->Name, MAX_NAME_LEN);
989 HostP->Mapping[entry].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT;
990 RIOReMapPorts(p, HostP, &HostP->Mapping[entry]);
991 if (HostP->Mapping[entry].SysPort < p->RIOFirstPortsBooted)
992 p->RIOFirstPortsBooted = HostP->Mapping[entry].SysPort;
993 if (HostP->Mapping[entry].SysPort > p->RIOLastPortsBooted)
994 p->RIOLastPortsBooted = HostP->Mapping[entry].SysPort;
995 rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) MapP->SysPort, MapP->Name);
996 } else {
997 rio_dprintk(RIO_DEBUG_BOOT, "This RTA has a tentative entry on another host - delete that entry (1)\n");
998 HostP->Mapping[entry].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT;
999 }
1000 if (RtaType == TYPE_RTA16) {
1001 if (Flag & SLOT_IN_USE) {
1002 HostP->Mapping[entry2].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
1003 HostP->Mapping[entry2].SysPort = MapP2->SysPort;
1004 /*
1005 ** Map second block of ttys for 16 port RTA
1006 */
1007 RIOReMapPorts(p, HostP, &HostP->Mapping[entry2]);
1008 if (HostP->Mapping[entry2].SysPort < p->RIOFirstPortsBooted)
1009 p->RIOFirstPortsBooted = HostP->Mapping[entry2].SysPort;
1010 if (HostP->Mapping[entry2].SysPort > p->RIOLastPortsBooted)
1011 p->RIOLastPortsBooted = HostP->Mapping[entry2].SysPort;
1012 rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) HostP->Mapping[entry2].SysPort, HostP->Mapping[entry].Name);
1013 } else
1014 HostP->Mapping[entry2].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
1015 memset(MapP2, 0, sizeof(struct Map));
1017 memset(MapP, 0, sizeof(struct Map));
1018 if (!p->RIONoMessage)
1019 printk("An orphaned RTA has been adopted by %s '%s' (%c).\n", MyType, MyName, MyLink + 'A');
1020 } else if (!p->RIONoMessage)
1021 printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
1022 RIOSetChange(p);
1023 return 1;
1026 /*
1027 ** There is no room in the driver table to make an entry for the
1028 ** booted RTA. Keep a note of its Uniq Num in the overflow table,
1029 ** so we can ignore it's ID requests.
1030 */
1031 if (!p->RIONoMessage)
1032 printk("The RTA connected to %s '%s' (%c) cannot be configured. You cannot configure more than 128 ports to one host card.\n", MyType, MyName, MyLink + 'A');
1033 for (entry = 0; entry < HostP->NumExtraBooted; entry++) {
1034 if (HostP->ExtraUnits[entry] == RtaUniq) {
1035 /*
1036 ** already got it!
1037 */
1038 return 1;
1041 /*
1042 ** If there is room, add the unit to the list of extras
1043 */
1044 if (HostP->NumExtraBooted < MAX_EXTRA_UNITS)
1045 HostP->ExtraUnits[HostP->NumExtraBooted++] = RtaUniq;
1046 return 1;
1050 /*
1051 ** If the RTA or its host appears in the RIOBindTab[] structure then
1052 ** we mustn't boot the RTA and should return 0.
1053 ** This operation is slightly different from the other drivers for RIO
1054 ** in that this is designed to work with the new utilities
1055 ** not config.rio and is FAR SIMPLER.
1056 ** We no longer support the RIOBootMode variable. It is all done from the
1057 ** "boot/noboot" field in the rio.cf file.
1058 */
1059 int RIOBootOk(struct rio_info *p, struct Host *HostP, unsigned long RtaUniq)
1061 int Entry;
1062 unsigned int HostUniq = HostP->UniqueNum;
1064 /*
1065 ** Search bindings table for RTA or its parent.
1066 ** If it exists, return 0, else 1.
1067 */
1068 for (Entry = 0; (Entry < MAX_RTA_BINDINGS) && (p->RIOBindTab[Entry] != 0); Entry++) {
1069 if ((p->RIOBindTab[Entry] == HostUniq) || (p->RIOBindTab[Entry] == RtaUniq))
1070 return 0;
1072 return 1;
1075 /*
1076 ** Make an empty slot tentative. If this is a 16 port RTA, make both
1077 ** slots tentative, and the second one RTA_SECOND_SLOT as well.
1078 */
1080 void rio_fill_host_slot(int entry, int entry2, unsigned int rta_uniq, struct Host *host)
1082 int link;
1084 rio_dprintk(RIO_DEBUG_BOOT, "rio_fill_host_slot(%d, %d, 0x%x...)\n", entry, entry2, rta_uniq);
1086 host->Mapping[entry].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE);
1087 host->Mapping[entry].SysPort = NO_PORT;
1088 host->Mapping[entry].RtaUniqueNum = rta_uniq;
1089 host->Mapping[entry].HostUniqueNum = host->UniqueNum;
1090 host->Mapping[entry].ID = entry + 1;
1091 host->Mapping[entry].ID2 = 0;
1092 if (entry2) {
1093 host->Mapping[entry2].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE | RTA16_SECOND_SLOT);
1094 host->Mapping[entry2].SysPort = NO_PORT;
1095 host->Mapping[entry2].RtaUniqueNum = rta_uniq;
1096 host->Mapping[entry2].HostUniqueNum = host->UniqueNum;
1097 host->Mapping[entry2].Name[0] = '\0';
1098 host->Mapping[entry2].ID = entry2 + 1;
1099 host->Mapping[entry2].ID2 = entry + 1;
1100 host->Mapping[entry].ID2 = entry2 + 1;
1102 /*
1103 ** Must set these up, so that utilities show
1104 ** topology of 16 port RTAs correctly
1105 */
1106 for (link = 0; link < LINKS_PER_UNIT; link++) {
1107 host->Mapping[entry].Topology[link].Unit = ROUTE_DISCONNECT;
1108 host->Mapping[entry].Topology[link].Link = NO_LINK;
1109 if (entry2) {
1110 host->Mapping[entry2].Topology[link].Unit = ROUTE_DISCONNECT;
1111 host->Mapping[entry2].Topology[link].Link = NO_LINK;