501 lines
15 KiB
C
501 lines
15 KiB
C
/*-
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* Copyright (c) 2001,2002,2003 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/bio.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include "dev/pst/pst-iop.h"
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struct iop_request {
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struct i2o_single_reply *reply;
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u_int32_t mfa;
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};
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/* local vars */
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MALLOC_DEFINE(M_PSTIOP, "PSTIOP", "Promise SuperTrak IOP driver");
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int
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iop_init(struct iop_softc *sc)
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{
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int mfa, timeout = 10000;
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while ((mfa = sc->reg->iqueue) == 0xffffffff && --timeout)
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DELAY(1000);
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if (!timeout) {
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printf("pstiop: no free mfa\n");
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return 0;
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}
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iop_free_mfa(sc, mfa);
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sc->reg->oqueue_intr_mask = 0xffffffff;
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if (!iop_reset(sc)) {
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printf("pstiop: no reset response\n");
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return 0;
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}
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if (!iop_init_outqueue(sc)) {
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printf("pstiop: init outbound queue failed\n");
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return 0;
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}
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/* register iop_attach to be run when interrupts are enabled */
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if (!(sc->iop_delayed_attach = (struct intr_config_hook *)
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malloc(sizeof(struct intr_config_hook),
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M_PSTIOP, M_NOWAIT | M_ZERO))) {
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printf("pstiop: malloc of delayed attach hook failed\n");
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return 0;
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}
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sc->iop_delayed_attach->ich_func = (void *)iop_attach;
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sc->iop_delayed_attach->ich_arg = (void *)sc;
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if (config_intrhook_establish(sc->iop_delayed_attach)) {
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printf("pstiop: config_intrhook_establish failed\n");
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free(sc->iop_delayed_attach, M_PSTIOP);
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}
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return 1;
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}
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void
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iop_attach(struct iop_softc *sc)
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{
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int i;
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if (sc->iop_delayed_attach) {
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config_intrhook_disestablish(sc->iop_delayed_attach);
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free(sc->iop_delayed_attach, M_PSTIOP);
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sc->iop_delayed_attach = NULL;
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}
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if (!iop_get_lct(sc)) {
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printf("pstiop: get LCT failed\n");
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return;
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}
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/* figure out what devices are here and config as needed */
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for (i = 0; sc->lct[i].entry_size == I2O_LCT_ENTRYSIZE; i++) {
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#ifdef PSTDEBUG
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struct i2o_get_param_reply *reply;
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printf("pstiop: LCT entry %d ", i);
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printf("class=%04x ", sc->lct[i].class);
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printf("sub=%04x ", sc->lct[i].sub_class);
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printf("localtid=%04x ", sc->lct[i].local_tid);
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printf("usertid=%04x ", sc->lct[i].user_tid);
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printf("parentid=%04x\n", sc->lct[i].parent_tid);
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if ((reply = iop_get_util_params(sc, sc->lct[i].local_tid,
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I2O_PARAMS_OPERATION_FIELD_GET,
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I2O_UTIL_DEVICE_IDENTITY_GROUP_NO))) {
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struct i2o_device_identity *ident =
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(struct i2o_device_identity *)reply->result;
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printf("pstiop: vendor=<%.16s> product=<%.16s>\n",
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ident->vendor, ident->product);
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printf("pstiop: description=<%.16s> revision=<%.8s>\n",
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ident->description, ident->revision);
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contigfree(reply, PAGE_SIZE, M_PSTIOP);
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}
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#endif
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if (sc->lct[i].user_tid != I2O_TID_NONE &&
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sc->lct[i].user_tid != I2O_TID_HOST)
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continue;
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switch (sc->lct[i].class) {
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case I2O_CLASS_DDM:
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if (sc->lct[i].sub_class == I2O_SUBCLASS_ISM)
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sc->ism = sc->lct[i].local_tid;
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break;
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case I2O_CLASS_RANDOM_BLOCK_STORAGE:
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pst_add_raid(sc, &sc->lct[i]);
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break;
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}
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}
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/* setup and enable interrupts */
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bus_setup_intr(sc->dev, sc->r_irq, INTR_TYPE_BIO|INTR_ENTROPY|INTR_MPSAFE,
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iop_intr, sc, &sc->handle);
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sc->reg->oqueue_intr_mask = 0x0;
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}
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void
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iop_intr(void *data)
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{
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struct iop_softc *sc = (struct iop_softc *)data;
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struct i2o_single_reply *reply;
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u_int32_t mfa;
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/* we might get more than one finished request pr interrupt */
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mtx_lock(&sc->mtx);
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while (1) {
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if ((mfa = sc->reg->oqueue) == 0xffffffff)
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if ((mfa = sc->reg->oqueue) == 0xffffffff)
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break;
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reply = (struct i2o_single_reply *)(sc->obase + (mfa - sc->phys_obase));
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/* if this is an event register reply, shout! */
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if (reply->function == I2O_UTIL_EVENT_REGISTER) {
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struct i2o_util_event_reply_message *event =
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(struct i2o_util_event_reply_message *)reply;
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printf("pstiop: EVENT!! idx=%08x data=%08x\n",
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event->event_mask, event->event_data[0]);
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break;
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}
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/* if reply is a failurenotice we need to free the original mfa */
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if (reply->message_flags & I2O_MESSAGE_FLAGS_FAIL)
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iop_free_mfa(sc,((struct i2o_fault_reply *)(reply))->preserved_mfa);
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/* reply->initiator_context points to the service routine */
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((void (*)(struct iop_softc *, u_int32_t, struct i2o_single_reply *))
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(reply->initiator_context))(sc, mfa, reply);
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}
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mtx_unlock(&sc->mtx);
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}
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int
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iop_reset(struct iop_softc *sc)
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{
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struct i2o_exec_iop_reset_message *msg;
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int mfa, timeout = 5000;
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volatile u_int32_t reply = 0;
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mfa = iop_get_mfa(sc);
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msg = (struct i2o_exec_iop_reset_message *)(sc->ibase + mfa);
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bzero(msg, sizeof(struct i2o_exec_iop_reset_message));
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msg->version_offset = 0x1;
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msg->message_flags = 0x0;
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msg->message_size = sizeof(struct i2o_exec_iop_reset_message) >> 2;
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msg->target_address = I2O_TID_IOP;
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msg->initiator_address = I2O_TID_HOST;
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msg->function = I2O_EXEC_IOP_RESET;
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msg->status_word_low_addr = vtophys(&reply);
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msg->status_word_high_addr = 0;
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sc->reg->iqueue = mfa;
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while (--timeout && !reply)
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DELAY(1000);
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/* wait for iqueue ready */
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timeout = 10000;
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while ((mfa = sc->reg->iqueue) == 0xffffffff && --timeout)
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DELAY(1000);
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iop_free_mfa(sc, mfa);
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return reply;
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}
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int
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iop_init_outqueue(struct iop_softc *sc)
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{
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struct i2o_exec_init_outqueue_message *msg;
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int i, mfa, timeout = 5000;
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volatile u_int32_t reply = 0;
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if (!(sc->obase = contigmalloc(I2O_IOP_OUTBOUND_FRAME_COUNT *
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I2O_IOP_OUTBOUND_FRAME_SIZE,
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M_PSTIOP, M_NOWAIT,
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0x00010000, 0xFFFFFFFF,
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PAGE_SIZE, 0))) {
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printf("pstiop: contigmalloc of outqueue buffers failed!\n");
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return 0;
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}
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sc->phys_obase = vtophys(sc->obase);
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mfa = iop_get_mfa(sc);
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msg = (struct i2o_exec_init_outqueue_message *)(sc->ibase + mfa);
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bzero(msg, sizeof(struct i2o_exec_init_outqueue_message));
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msg->version_offset = 0x61;
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msg->message_flags = 0x0;
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msg->message_size = sizeof(struct i2o_exec_init_outqueue_message) >> 2;
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msg->target_address = I2O_TID_IOP;
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msg->initiator_address = I2O_TID_HOST;
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msg->function = I2O_EXEC_OUTBOUND_INIT;
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msg->host_pagesize = PAGE_SIZE;
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msg->init_code = 0x00; /* SOS XXX should be 0x80 == OS */
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msg->queue_framesize = I2O_IOP_OUTBOUND_FRAME_SIZE / sizeof(u_int32_t);
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msg->sgl[0].flags = I2O_SGL_SIMPLE | I2O_SGL_END | I2O_SGL_EOB;
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msg->sgl[0].count = sizeof(reply);
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msg->sgl[0].phys_addr[0] = vtophys(&reply);
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msg->sgl[1].flags = I2O_SGL_END | I2O_SGL_EOB;
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msg->sgl[1].count = 1;
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msg->sgl[1].phys_addr[0] = 0;
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sc->reg->iqueue = mfa;
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/* wait for init to complete */
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while (--timeout && reply != I2O_EXEC_OUTBOUND_INIT_COMPLETE)
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DELAY(1000);
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if (!timeout) {
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printf("pstiop: timeout waiting for init-complete response\n");
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iop_free_mfa(sc, mfa);
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return 0;
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}
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/* now init our oqueue bufs */
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for (i = 0; i < I2O_IOP_OUTBOUND_FRAME_COUNT; i++) {
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sc->reg->oqueue = sc->phys_obase + (i * I2O_IOP_OUTBOUND_FRAME_SIZE);
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DELAY(1000);
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}
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return 1;
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}
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int
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iop_get_lct(struct iop_softc *sc)
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{
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struct i2o_exec_get_lct_message *msg;
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struct i2o_get_lct_reply *reply;
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int mfa;
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#define ALLOCSIZE (PAGE_SIZE + (256 * sizeof(struct i2o_lct_entry)))
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if (!(reply = contigmalloc(ALLOCSIZE, M_PSTIOP, M_NOWAIT | M_ZERO,
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0x00010000, 0xFFFFFFFF, PAGE_SIZE, 0)))
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return 0;
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mfa = iop_get_mfa(sc);
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msg = (struct i2o_exec_get_lct_message *)(sc->ibase + mfa);
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bzero(msg, sizeof(struct i2o_exec_get_lct_message));
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msg->version_offset = 0x61;
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msg->message_flags = 0x0;
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msg->message_size = sizeof(struct i2o_exec_get_lct_message) >> 2;
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msg->target_address = I2O_TID_IOP;
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msg->initiator_address = I2O_TID_HOST;
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msg->function = I2O_EXEC_LCT_NOTIFY;
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msg->class = I2O_CLASS_MATCH_ANYCLASS;
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msg->last_change_id = 0;
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msg->sgl.flags = I2O_SGL_SIMPLE | I2O_SGL_END | I2O_SGL_EOB;
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msg->sgl.count = ALLOCSIZE;
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msg->sgl.phys_addr[0] = vtophys(reply);
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if (iop_queue_wait_msg(sc, mfa, (struct i2o_basic_message *)msg)) {
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contigfree(reply, ALLOCSIZE, M_PSTIOP);
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return 0;
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}
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if (!(sc->lct = malloc(reply->table_size * sizeof(struct i2o_lct_entry),
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M_PSTIOP, M_NOWAIT | M_ZERO))) {
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contigfree(reply, ALLOCSIZE, M_PSTIOP);
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return 0;
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}
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bcopy(&reply->entry[0], sc->lct,
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reply->table_size * sizeof(struct i2o_lct_entry));
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sc->lct_count = reply->table_size;
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contigfree(reply, ALLOCSIZE, M_PSTIOP);
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return 1;
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}
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struct i2o_get_param_reply *
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iop_get_util_params(struct iop_softc *sc, int target, int operation, int group)
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{
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struct i2o_util_get_param_message *msg;
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struct i2o_get_param_operation *param;
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struct i2o_get_param_reply *reply;
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int mfa;
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if (!(param = contigmalloc(PAGE_SIZE, M_PSTIOP, M_NOWAIT | M_ZERO,
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0x00010000, 0xFFFFFFFF, PAGE_SIZE, 0)))
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return NULL;
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if (!(reply = contigmalloc(PAGE_SIZE, M_PSTIOP, M_NOWAIT | M_ZERO,
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0x00010000, 0xFFFFFFFF, PAGE_SIZE, 0)))
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return NULL;
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mfa = iop_get_mfa(sc);
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msg = (struct i2o_util_get_param_message *)(sc->ibase + mfa);
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bzero(msg, sizeof(struct i2o_util_get_param_message));
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msg->version_offset = 0x51;
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msg->message_flags = 0x0;
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msg->message_size = sizeof(struct i2o_util_get_param_message) >> 2;
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msg->target_address = target;
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msg->initiator_address = I2O_TID_HOST;
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msg->function = I2O_UTIL_PARAMS_GET;
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msg->operation_flags = 0;
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param->operation_count = 1;
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param->operation[0].operation = operation;
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param->operation[0].group = group;
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param->operation[0].field_count = 0xffff;
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msg->sgl[0].flags = I2O_SGL_SIMPLE | I2O_SGL_DIR | I2O_SGL_EOB;
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msg->sgl[0].count = sizeof(struct i2o_get_param_operation);
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msg->sgl[0].phys_addr[0] = vtophys(param);
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msg->sgl[1].flags = I2O_SGL_SIMPLE | I2O_SGL_END | I2O_SGL_EOB;
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msg->sgl[1].count = PAGE_SIZE;
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msg->sgl[1].phys_addr[0] = vtophys(reply);
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if (iop_queue_wait_msg(sc, mfa, (struct i2o_basic_message *)msg) ||
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reply->error_info_size) {
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contigfree(reply, PAGE_SIZE, M_PSTIOP);
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reply = NULL;
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}
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contigfree(param, PAGE_SIZE, M_PSTIOP);
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return reply;
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}
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u_int32_t
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iop_get_mfa(struct iop_softc *sc)
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{
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u_int32_t mfa;
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int timeout = 10000;
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while ((mfa = sc->reg->iqueue) == 0xffffffff && timeout) {
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DELAY(1000);
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timeout--;
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}
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if (!timeout)
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printf("pstiop: no free mfa\n");
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return mfa;
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}
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void
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iop_free_mfa(struct iop_softc *sc, int mfa)
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{
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struct i2o_basic_message *msg = (struct i2o_basic_message *)(sc->ibase+mfa);
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bzero(msg, sizeof(struct i2o_basic_message));
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msg->version = 0x01;
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msg->message_flags = 0x0;
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msg->message_size = sizeof(struct i2o_basic_message) >> 2;
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msg->target_address = I2O_TID_IOP;
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msg->initiator_address = I2O_TID_HOST;
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msg->function = I2O_UTIL_NOP;
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sc->reg->iqueue = mfa;
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}
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static void
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iop_done(struct iop_softc *sc, u_int32_t mfa, struct i2o_single_reply *reply)
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{
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struct iop_request *request =
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(struct iop_request *)reply->transaction_context;
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request->reply = reply;
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request->mfa = mfa;
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wakeup(request);
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}
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int
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iop_queue_wait_msg(struct iop_softc *sc, int mfa, struct i2o_basic_message *msg)
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{
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struct i2o_single_reply *reply;
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struct iop_request request;
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u_int32_t out_mfa;
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int status, timeout = 10000;
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mtx_lock(&sc->mtx);
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if (!(sc->reg->oqueue_intr_mask & 0x08)) {
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msg->transaction_context = (u_int32_t)&request;
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msg->initiator_context = (u_int32_t)iop_done;
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sc->reg->iqueue = mfa;
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if (msleep(&request, &sc->mtx, PRIBIO, "pstwt", 10 * hz)) {
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printf("pstiop: timeout waiting for message response\n");
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iop_free_mfa(sc, mfa);
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mtx_unlock(&sc->mtx);
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return -1;
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}
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status = request.reply->status;
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sc->reg->oqueue = request.mfa;
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}
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else {
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sc->reg->iqueue = mfa;
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while (--timeout && ((out_mfa = sc->reg->oqueue) == 0xffffffff))
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DELAY(1000);
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if (!timeout) {
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printf("pstiop: timeout waiting for message response\n");
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iop_free_mfa(sc, mfa);
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mtx_unlock(&sc->mtx);
|
|
return -1;
|
|
}
|
|
reply = (struct i2o_single_reply *)(sc->obase+(out_mfa-sc->phys_obase));
|
|
status = reply->status;
|
|
sc->reg->oqueue = out_mfa;
|
|
}
|
|
mtx_unlock(&sc->mtx);
|
|
return status;
|
|
}
|
|
|
|
int
|
|
iop_create_sgl(struct i2o_basic_message *msg, caddr_t data, int count, int dir)
|
|
{
|
|
struct i2o_sgl *sgl = (struct i2o_sgl *)((int32_t *)msg + msg->offset);
|
|
u_int32_t sgl_count, sgl_phys;
|
|
int i = 0;
|
|
|
|
if (((uintptr_t)data & 3) || (count & 3)) {
|
|
printf("pstiop: non aligned DMA transfer attempted\n");
|
|
return 0;
|
|
}
|
|
if (!count) {
|
|
printf("pstiop: zero length DMA transfer attempted\n");
|
|
return 0;
|
|
}
|
|
|
|
sgl_count = min(count, (PAGE_SIZE - ((uintptr_t)data & PAGE_MASK)));
|
|
sgl_phys = vtophys(data);
|
|
sgl->flags = dir | I2O_SGL_PAGELIST | I2O_SGL_EOB | I2O_SGL_END;
|
|
sgl->count = count;
|
|
data += sgl_count;
|
|
count -= sgl_count;
|
|
|
|
while (count) {
|
|
sgl->phys_addr[i] = sgl_phys;
|
|
sgl_phys = vtophys(data);
|
|
data += min(count, PAGE_SIZE);
|
|
count -= min(count, PAGE_SIZE);
|
|
if (++i >= I2O_SGL_MAX_SEGS) {
|
|
printf("pstiop: too many segments in SGL\n");
|
|
return 0;
|
|
}
|
|
}
|
|
sgl->phys_addr[i] = sgl_phys;
|
|
msg->message_size += i;
|
|
return 1;
|
|
}
|