003 File Manager
Current Path:
/usr/src/sys/dev/pst
usr
/
src
/
sys
/
dev
/
pst
/
📁
..
📄
pst-iop.c
(14.87 KB)
📄
pst-iop.h
(20.47 KB)
📄
pst-pci.c
(4.08 KB)
📄
pst-raid.c
(11.1 KB)
Editing: pst-raid.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2001,2002,2003 Søren Schmidt <sos@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/bus.h> #include <sys/bio.h> #include <sys/conf.h> #include <sys/eventhandler.h> #include <sys/malloc.h> #include <sys/lock.h> #include <sys/mutex.h> #include <vm/vm.h> #include <vm/pmap.h> #include <machine/stdarg.h> #include <machine/resource.h> #include <machine/bus.h> #include <sys/rman.h> #include <dev/pci/pcivar.h> #include <dev/pci/pcireg.h> #include <geom/geom_disk.h> #include "dev/pst/pst-iop.h" struct pst_softc { struct iop_softc *iop; struct i2o_lct_entry *lct; struct i2o_bsa_device *info; struct disk *disk; struct bio_queue_head queue; }; struct pst_request { struct pst_softc *psc; /* pointer to softc */ u_int32_t mfa; /* frame addreess */ struct callout timeout; /* timeout timer */ struct bio *bp; /* associated bio ptr */ }; /* prototypes */ static disk_strategy_t pststrategy; static int pst_probe(device_t); static int pst_attach(device_t); static int pst_shutdown(device_t); static void pst_start(struct pst_softc *); static void pst_done(struct iop_softc *, u_int32_t, struct i2o_single_reply *); static int pst_rw(struct pst_request *); static void pst_timeout(void *); static void bpack(int8_t *, int8_t *, int); /* local vars */ static MALLOC_DEFINE(M_PSTRAID, "pst", "Promise SuperTrak RAID driver"); int pst_add_raid(struct iop_softc *sc, struct i2o_lct_entry *lct) { struct pst_softc *psc; device_t child = device_add_child(sc->dev, "pst", -1); if (!child) return ENOMEM; if (!(psc = malloc(sizeof(struct pst_softc), M_PSTRAID, M_NOWAIT | M_ZERO))) { device_delete_child(sc->dev, child); return ENOMEM; } psc->iop = sc; psc->lct = lct; device_set_softc(child, psc); return device_probe_and_attach(child); } static int pst_probe(device_t dev) { device_set_desc(dev, "Promise SuperTrak RAID"); return 0; } static int pst_attach(device_t dev) { struct pst_softc *psc = device_get_softc(dev); struct i2o_get_param_reply *reply; struct i2o_device_identity *ident; int lun = device_get_unit(dev); int8_t name [32]; if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid, I2O_PARAMS_OPERATION_FIELD_GET, I2O_BSA_DEVICE_INFO_GROUP_NO))) return ENODEV; if (!(psc->info = (struct i2o_bsa_device *) malloc(sizeof(struct i2o_bsa_device), M_PSTRAID, M_NOWAIT))) { contigfree(reply, PAGE_SIZE, M_PSTIOP); return ENOMEM; } bcopy(reply->result, psc->info, sizeof(struct i2o_bsa_device)); contigfree(reply, PAGE_SIZE, M_PSTIOP); if (!(reply = iop_get_util_params(psc->iop, psc->lct->local_tid, I2O_PARAMS_OPERATION_FIELD_GET, I2O_UTIL_DEVICE_IDENTITY_GROUP_NO))) return ENODEV; ident = (struct i2o_device_identity *)reply->result; #ifdef PSTDEBUG printf("pst: vendor=<%.16s> product=<%.16s>\n", ident->vendor, ident->product); printf("pst: description=<%.16s> revision=<%.8s>\n", ident->description, ident->revision); printf("pst: capacity=%lld blocksize=%d\n", psc->info->capacity, psc->info->block_size); #endif bpack(ident->vendor, ident->vendor, 16); bpack(ident->product, ident->product, 16); sprintf(name, "%s %s", ident->vendor, ident->product); contigfree(reply, PAGE_SIZE, M_PSTIOP); bioq_init(&psc->queue); psc->disk = disk_alloc(); psc->disk->d_name = "pst"; psc->disk->d_strategy = pststrategy; psc->disk->d_maxsize = 64 * 1024; /*I2O_SGL_MAX_SEGS * PAGE_SIZE;*/ psc->disk->d_drv1 = psc; psc->disk->d_unit = lun; psc->disk->d_sectorsize = psc->info->block_size; psc->disk->d_mediasize = psc->info->capacity; psc->disk->d_fwsectors = 63; psc->disk->d_fwheads = 255; disk_create(psc->disk, DISK_VERSION); printf("pst%d: %lluMB <%.40s> [%lld/%d/%d] on %.16s\n", lun, (unsigned long long)psc->info->capacity / (1024 * 1024), name, psc->info->capacity/(512*255*63), 255, 63, device_get_nameunit(psc->iop->dev)); EVENTHANDLER_REGISTER(shutdown_post_sync, pst_shutdown, dev, SHUTDOWN_PRI_FIRST); return 0; } static int pst_shutdown(device_t dev) { struct pst_softc *psc = device_get_softc(dev); struct i2o_bsa_cache_flush_message *msg; int mfa; mfa = iop_get_mfa(psc->iop); msg = (struct i2o_bsa_cache_flush_message *)(psc->iop->ibase + mfa); bzero(msg, sizeof(struct i2o_bsa_cache_flush_message)); msg->version_offset = 0x01; msg->message_flags = 0x0; msg->message_size = sizeof(struct i2o_bsa_cache_flush_message) >> 2; msg->target_address = psc->lct->local_tid; msg->initiator_address = I2O_TID_HOST; msg->function = I2O_BSA_CACHE_FLUSH; msg->control_flags = 0x0; /* 0x80 = post progress reports */ if (iop_queue_wait_msg(psc->iop, mfa, (struct i2o_basic_message *)msg)) printf("pst: shutdown failed!\n"); return 0; } static void pststrategy(struct bio *bp) { struct pst_softc *psc = bp->bio_disk->d_drv1; mtx_lock(&psc->iop->mtx); bioq_disksort(&psc->queue, bp); pst_start(psc); mtx_unlock(&psc->iop->mtx); } static void pst_start(struct pst_softc *psc) { struct pst_request *request; struct bio *bp; u_int32_t mfa; int error; if (psc->iop->outstanding < (I2O_IOP_OUTBOUND_FRAME_COUNT - 1) && (bp = bioq_first(&psc->queue))) { if ((mfa = iop_get_mfa(psc->iop)) != 0xffffffff) { bioq_remove(&psc->queue, bp); if (!(request = malloc(sizeof(struct pst_request), M_PSTRAID, M_NOWAIT | M_ZERO))) { printf("pst: out of memory in start\n"); biofinish(request->bp, NULL, ENOMEM); iop_free_mfa(psc->iop, mfa); return; } callout_init_mtx(&request->timeout, &psc->iop->mtx, 0); psc->iop->outstanding++; request->psc = psc; request->mfa = mfa; request->bp = bp; if ((error = pst_rw(request)) != 0) { biofinish(request->bp, NULL, error); iop_free_mfa(request->psc->iop, request->mfa); psc->iop->outstanding--; free(request, M_PSTRAID); } } } } static void pst_done(struct iop_softc *sc, u_int32_t mfa, struct i2o_single_reply *reply) { struct pst_request *request = (struct pst_request *)reply->transaction_context; struct pst_softc *psc = request->psc; callout_stop(&request->timeout); request->bp->bio_resid = request->bp->bio_bcount - reply->donecount; biofinish(request->bp, NULL, reply->status ? EIO : 0); free(request, M_PSTRAID); psc->iop->reg->oqueue = mfa; psc->iop->outstanding--; pst_start(psc); } int pst_rw(struct pst_request *request) { struct i2o_bsa_rw_block_message *msg; int sgl_flag; msg = (struct i2o_bsa_rw_block_message *) (request->psc->iop->ibase + request->mfa); bzero(msg, sizeof(struct i2o_bsa_rw_block_message)); msg->version_offset = 0x81; msg->message_flags = 0x0; msg->message_size = sizeof(struct i2o_bsa_rw_block_message) >> 2; msg->target_address = request->psc->lct->local_tid; msg->initiator_address = I2O_TID_HOST; switch (request->bp->bio_cmd) { case BIO_READ: msg->function = I2O_BSA_BLOCK_READ; msg->control_flags = 0x0; /* 0x0c = read cache + readahead */ msg->fetch_ahead = 0x0; /* 8 Kb */ sgl_flag = 0; break; case BIO_WRITE: msg->function = I2O_BSA_BLOCK_WRITE; msg->control_flags = 0x0; /* 0x10 = write behind cache */ msg->fetch_ahead = 0x0; sgl_flag = I2O_SGL_DIR; break; default: printf("pst: unknown command type 0x%02x\n", request->bp->bio_cmd); return EOPNOTSUPP; } msg->initiator_context = (u_int32_t)pst_done; msg->transaction_context = (u_int32_t)request; msg->time_multiplier = 1; msg->bytecount = request->bp->bio_bcount; msg->lba = ((u_int64_t)request->bp->bio_pblkno) * (DEV_BSIZE * 1LL); if (!iop_create_sgl((struct i2o_basic_message *)msg, request->bp->bio_data, request->bp->bio_bcount, sgl_flag)) return EIO; request->psc->iop->reg->iqueue = request->mfa; if (!dumping) callout_reset(&request->timeout, 10 * hz, pst_timeout, request); return 0; } static void pst_timeout(void *arg) { struct pst_request *request; int error; request = arg; printf("pst: timeout mfa=0x%08x cmd=0x%02x\n", request->mfa, request->bp->bio_cmd); mtx_assert(&request->psc->iop->mtx, MA_OWNED); iop_free_mfa(request->psc->iop, request->mfa); if ((request->mfa = iop_get_mfa(request->psc->iop)) == 0xffffffff) { printf("pst: timeout no mfa possible\n"); biofinish(request->bp, NULL, EIO); request->psc->iop->outstanding--; return; } if ((error = pst_rw(request)) != 0) { iop_free_mfa(request->psc->iop, request->mfa); biofinish(request->bp, NULL, error); request->psc->iop->outstanding--; } } static void bpack(int8_t *src, int8_t *dst, int len) { int i, j, blank; int8_t *ptr, *buf = dst; for (i = j = blank = 0 ; i < len; i++) { if (blank && src[i] == ' ') continue; if (blank && src[i] != ' ') { dst[j++] = src[i]; blank = 0; continue; } if (src[i] == ' ') { blank = 1; if (i == 0) continue; } dst[j++] = src[i]; } if (j < len) dst[j] = 0x00; for (ptr = buf; ptr < buf+len; ++ptr) if (!*ptr) *ptr = ' '; for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) *ptr = 0; } static device_method_t pst_methods[] = { DEVMETHOD(device_probe, pst_probe), DEVMETHOD(device_attach, pst_attach), { 0, 0 } }; static driver_t pst_driver = { "pst", pst_methods, sizeof(struct pst_softc), }; static devclass_t pst_devclass; DRIVER_MODULE(pst, pstpci, pst_driver, pst_devclass, 0, 0);
Upload File
Create Folder