X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fgdth.c;h=6d67f5c0eb8e4133621898d7f5f07f18920592a5;hb=99109301d103fbf0de43fc5a580a406c12a501e0;hp=c90e407e1e42b2950791caa4600879813421b6b7;hpb=45f1a41b2b2e02e91d29bde66a8da4d050959f65;p=linux-2.6 diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index c90e407e1e..6d67f5c0eb 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -85,15 +85,15 @@ /* The meaning of the Scsi_Pointer members in this driver is as follows: * ptr: Chaining - * this_residual: Command priority - * buffer: phys. DMA sense buffer - * dma_handle: phys. DMA buffer (kernel >= 2.4.0) - * buffers_residual: Timeout value - * Status: Command status (gdth_do_cmd()), DMA mem. mappings - * Message: Additional info (gdth_do_cmd()), DMA direction - * have_data_in: Flag for gdth_wait_completion() - * sent_command: Opcode special command - * phase: Service/parameter/return code special command + * this_residual: gdth_bufflen + * buffer: gdth_sglist + * dma_handle: unused + * buffers_residual: gdth_sg_count + * Status: unused + * Message: unused + * have_data_in: unused + * sent_command: unused + * phase: unused */ @@ -119,6 +119,7 @@ #include #include #include +#include #ifdef GDTH_RTC #include @@ -131,6 +132,7 @@ #include #include #include +#include #include "scsi.h" #include @@ -139,6 +141,8 @@ static void gdth_delay(int milliseconds); static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs); static irqreturn_t gdth_interrupt(int irq, void *dev_id); +static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, + int gdth_from_wait, int* pIndex); static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, Scsi_Cmnd *scp); static int gdth_async_event(gdth_ha_str *ha); @@ -156,12 +160,11 @@ static void gdth_readapp_event(gdth_ha_str *ha, unchar application, static void gdth_clear_events(void); static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, - char *buffer,ushort count); + char *buffer, ushort count, int to_buffer); static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp); static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive); static void gdth_enable_int(gdth_ha_str *ha); -static int gdth_get_status(unchar *pIStatus,int irq); static int gdth_test_busy(gdth_ha_str *ha); static int gdth_get_cmd_index(gdth_ha_str *ha); static void gdth_release_event(gdth_ha_str *ha); @@ -181,16 +184,9 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, static void gdth_flush(gdth_ha_str *ha); static int gdth_halt(struct notifier_block *nb, ulong event, void *buf); static int gdth_queuecommand(Scsi_Cmnd *scp,void (*done)(Scsi_Cmnd *)); +static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp, + struct gdth_cmndinfo *cmndinfo); static void gdth_scsi_done(struct scsi_cmnd *scp); -#ifdef CONFIG_ISA -static int gdth_isa_probe_one(struct scsi_host_template *, ulong32); -#endif -#ifdef CONFIG_EISA -static int gdth_eisa_probe_one(struct scsi_host_template *, ushort); -#endif -#ifdef CONFIG_PCI -static int gdth_pci_probe_one(struct scsi_host_template *, gdth_pci_str *, int); -#endif #ifdef DEBUG_GDTH static unchar DebugState = DEBUG_GDTH; @@ -291,15 +287,12 @@ static struct timer_list gdth_timer; #ifdef CONFIG_ISA static unchar gdth_drq_tab[4] = {5,6,7,7}; /* DRQ table */ #endif -#ifdef CONFIG_EISA +#if defined(CONFIG_EISA) || defined(CONFIG_ISA) static unchar gdth_irq_tab[6] = {0,10,11,12,14,0}; /* IRQ table */ #endif static unchar gdth_polling; /* polling if TRUE */ -static unchar gdth_from_wait = FALSE; /* gdth_wait() */ -static int wait_index,wait_hanum; /* gdth_wait() */ static int gdth_ctr_count = 0; /* controller count */ -static int gdth_ctr_released = 0; /* gdth_release() */ -static struct Scsi_Host *gdth_ctr_tab[MAXHA]; /* controller table */ +static LIST_HEAD(gdth_instances); /* controller list */ static unchar gdth_write_through = FALSE; /* write through */ static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */ static int elastidx; @@ -380,8 +373,46 @@ static const struct file_operations gdth_fops = { .release = gdth_close, }; -#define GDTH_MAGIC 0xc2e7c389 /* I got it from /dev/urandom */ -#define IS_GDTH_INTERNAL_CMD(scp) (scp->underflow == GDTH_MAGIC) +/* + * gdth scsi_command access wrappers. + * below 6 functions are used throughout the driver to access scsi_command's + * io parameters. The reason we do not use the regular accessors from + * scsi_cmnd.h is because of gdth_execute(). Since it is unrecommended for + * llds to directly set scsi_cmnd's IO members. This driver will use SCp + * members for IO parameters, and will copy scsi_cmnd's members to Scp + * members in queuecommand. For internal commands through gdth_execute() + * SCp's members will be set directly. + */ +static inline unsigned gdth_bufflen(struct scsi_cmnd *cmd) +{ + return (unsigned)cmd->SCp.this_residual; +} + +static inline void gdth_set_bufflen(struct scsi_cmnd *cmd, unsigned bufflen) +{ + cmd->SCp.this_residual = bufflen; +} + +static inline unsigned gdth_sg_count(struct scsi_cmnd *cmd) +{ + return (unsigned)cmd->SCp.buffers_residual; +} + +static inline void gdth_set_sg_count(struct scsi_cmnd *cmd, unsigned sg_count) +{ + cmd->SCp.buffers_residual = sg_count; +} + +static inline struct scatterlist *gdth_sglist(struct scsi_cmnd *cmd) +{ + return cmd->SCp.buffer; +} + +static inline void gdth_set_sglist(struct scsi_cmnd *cmd, + struct scatterlist *sglist) +{ + cmd->SCp.buffer = sglist; +} #include "gdth_proc.h" #include "gdth_proc.c" @@ -392,6 +423,45 @@ static struct notifier_block gdth_notifier = { }; static int notifier_disabled = 0; +static gdth_ha_str *gdth_find_ha(int hanum) +{ + gdth_ha_str *ha; + + list_for_each_entry(ha, &gdth_instances, list) + if (hanum == ha->hanum) + return ha; + + return NULL; +} + +static struct gdth_cmndinfo *gdth_get_cmndinfo(gdth_ha_str *ha) +{ + struct gdth_cmndinfo *priv = NULL; + ulong flags; + int i; + + spin_lock_irqsave(&ha->smp_lock, flags); + + for (i=0; icmndinfo[i].index == 0) { + priv = &ha->cmndinfo[i]; + priv->index = i+1; + memset(priv, 0, sizeof(*priv)); + break; + } + } + + spin_unlock_irqrestore(&ha->smp_lock, flags); + + return priv; +} + +static void gdth_put_cmndinfo(struct gdth_cmndinfo *priv) +{ + BUG_ON(!priv); + priv->index = 0; +} + static void gdth_delay(int milliseconds) { if (milliseconds == 0) { @@ -403,9 +473,15 @@ static void gdth_delay(int milliseconds) static void gdth_scsi_done(struct scsi_cmnd *scp) { + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + int internal_command = cmndinfo->internal_command; + TRACE2(("gdth_scsi_done()\n")); - if (IS_GDTH_INTERNAL_CMD(scp)) + gdth_put_cmndinfo(cmndinfo); + scp->host_scribble = NULL; + + if (internal_command) complete((struct completion *)scp->request); else scp->scsi_done(scp); @@ -414,7 +490,10 @@ static void gdth_scsi_done(struct scsi_cmnd *scp) int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd, int timeout, u32 *info) { + gdth_ha_str *ha = shost_priv(sdev->host); Scsi_Cmnd *scp; + struct gdth_cmndinfo cmndinfo; + struct scatterlist one_sg; DECLARE_COMPLETION_ONSTACK(wait); int rval; @@ -423,20 +502,28 @@ int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd, return -ENOMEM; scp->device = sdev; + memset(&cmndinfo, 0, sizeof(cmndinfo)); + /* use request field to save the ptr. to completion struct. */ scp->request = (struct request *)&wait; scp->timeout_per_command = timeout*HZ; - scp->request_buffer = gdtcmd; + sg_init_one(&one_sg, gdtcmd, sizeof(*gdtcmd)); + gdth_set_sglist(scp, &one_sg); + gdth_set_sg_count(scp, 1); + gdth_set_bufflen(scp, sizeof(*gdtcmd)); scp->cmd_len = 12; memcpy(scp->cmnd, cmnd, 12); - scp->SCp.this_residual = IOCTL_PRI; /* priority */ - scp->underflow = GDTH_MAGIC; - gdth_queuecommand(scp, NULL); + cmndinfo.priority = IOCTL_PRI; + cmndinfo.internal_command = 1; + + TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0])); + __gdth_queuecommand(ha, scp, &cmndinfo); + wait_for_completion(&wait); - rval = scp->SCp.Status; + rval = cmndinfo.status; if (info) - *info = scp->SCp.Message; + *info = cmndinfo.info; kfree(scp); return rval; } @@ -555,12 +642,15 @@ static void __init gdth_search_dev(gdth_pci_str *pcistr, ushort *cnt, *cnt, vendor, device)); pdev = NULL; - while ((pdev = pci_find_device(vendor, device, pdev)) + while ((pdev = pci_get_device(vendor, device, pdev)) != NULL) { if (pci_enable_device(pdev)) continue; - if (*cnt >= MAXHA) + if (*cnt >= MAXHA) { + pci_dev_put(pdev); return; + } + /* GDT PCI controller found, resources are already in pdev */ pcistr[*cnt].pdev = pdev; pcistr[*cnt].irq = pdev->irq; @@ -1245,41 +1335,30 @@ static void __init gdth_enable_int(gdth_ha_str *ha) spin_unlock_irqrestore(&ha->smp_lock, flags); } - -static int gdth_get_status(unchar *pIStatus,int irq) +/* return IStatus if interrupt was from this card else 0 */ +static unchar gdth_get_status(gdth_ha_str *ha) { - register gdth_ha_str *ha; - int i; + unchar IStatus = 0; + + TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count)); - TRACE(("gdth_get_status() irq %d ctr_count %d\n", - irq,gdth_ctr_count)); - - *pIStatus = 0; - for (i=0; iirq != (unchar)irq) /* check IRQ */ - continue; if (ha->type == GDT_EISA) - *pIStatus = inb((ushort)ha->bmic + EDOORREG); + IStatus = inb((ushort)ha->bmic + EDOORREG); else if (ha->type == GDT_ISA) - *pIStatus = + IStatus = readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index); else if (ha->type == GDT_PCI) - *pIStatus = + IStatus = readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index); else if (ha->type == GDT_PCINEW) - *pIStatus = inb(PTR2USHORT(&ha->plx->edoor_reg)); + IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg)); else if (ha->type == GDT_PCIMPR) - *pIStatus = + IStatus = readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg); - - if (*pIStatus) - return i; /* board found */ - } - return -1; + + return IStatus; } - - + static int gdth_test_busy(gdth_ha_str *ha) { register int gdtsema0 = 0; @@ -1436,22 +1515,21 @@ static void gdth_release_event(gdth_ha_str *ha) static int gdth_wait(gdth_ha_str *ha, int index, ulong32 time) { int answer_found = FALSE; + int wait_index = 0; TRACE(("gdth_wait() hanum %d index %d time %d\n", ha->hanum, index, time)); if (index == 0) return 1; /* no wait required */ - gdth_from_wait = TRUE; do { - gdth_interrupt((int)ha->irq,ha); - if (wait_hanum==ha->hanum && wait_index==index) { + __gdth_interrupt(ha, true, &wait_index); + if (wait_index == index) { answer_found = TRUE; break; } gdth_delay(1); } while (--time); - gdth_from_wait = FALSE; while (gdth_test_busy(ha)) gdth_delay(0); @@ -1974,6 +2052,7 @@ static int gdth_analyse_hdrive(gdth_ha_str *ha, ushort hdrive) static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority) { + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); register Scsi_Cmnd *pscp; register Scsi_Cmnd *nscp; ulong flags; @@ -1982,15 +2061,15 @@ static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority) TRACE(("gdth_putq() priority %d\n",priority)); spin_lock_irqsave(&ha->smp_lock, flags); - if (!IS_GDTH_INTERNAL_CMD(scp)) { - scp->SCp.this_residual = (int)priority; + if (!cmndinfo->internal_command) { + cmndinfo->priority = priority; b = scp->device->channel; t = scp->device->id; if (priority >= DEFAULT_PRI) { if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) || (b==ha->virt_bus && thdr[t].lock)) { TRACE2(("gdth_putq(): locked IO ->update_timeout()\n")); - scp->SCp.buffers_residual = gdth_update_timeout(scp, 0); + cmndinfo->timeout = gdth_update_timeout(scp, 0); } } } @@ -2002,7 +2081,7 @@ static void gdth_putq(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar priority) pscp = ha->req_first; nscp = (Scsi_Cmnd *)pscp->SCp.ptr; /* priority: 0-highest,..,0xff-lowest */ - while (nscp && (unchar)nscp->SCp.this_residual <= priority) { + while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) { pscp = nscp; nscp = (Scsi_Cmnd *)pscp->SCp.ptr; } @@ -2041,13 +2120,14 @@ static void gdth_next(gdth_ha_str *ha) cmd_index = 0; for (nscp = pscp = ha->req_first; nscp; nscp = (Scsi_Cmnd *)nscp->SCp.ptr) { + struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp); if (nscp != pscp && nscp != (Scsi_Cmnd *)pscp->SCp.ptr) pscp = (Scsi_Cmnd *)pscp->SCp.ptr; - if (!IS_GDTH_INTERNAL_CMD(nscp)) { + if (!nscp_cmndinfo->internal_command) { b = nscp->device->channel; t = nscp->device->id; l = nscp->device->lun; - if (nscp->SCp.this_residual >= DEFAULT_PRI) { + if (nscp_cmndinfo->priority >= DEFAULT_PRI) { if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha,b)].lock) || (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) continue; @@ -2068,9 +2148,9 @@ static void gdth_next(gdth_ha_str *ha) firsttime = FALSE; } - if (!IS_GDTH_INTERNAL_CMD(nscp)) { - if (nscp->SCp.phase == -1) { - nscp->SCp.phase = CACHESERVICE; /* default: cache svc. */ + if (!nscp_cmndinfo->internal_command) { + if (nscp_cmndinfo->phase == -1) { + nscp_cmndinfo->phase = CACHESERVICE; /* default: cache svc. */ if (nscp->cmnd[0] == TEST_UNIT_READY) { TRACE2(("TEST_UNIT_READY Bus %d Id %d LUN %d\n", b, t, l)); @@ -2083,8 +2163,8 @@ static void gdth_next(gdth_ha_str *ha) } else if ((ha->scan_mode & 0x0f) == 1) { if (b == 0 && ((t == 0 && l == 1) || (t == 1 && l == 0))) { - nscp->SCp.sent_command = GDT_SCAN_START; - nscp->SCp.phase = ((ha->scan_mode & 0x10 ? 1:0) << 8) + nscp_cmndinfo->OpCode = GDT_SCAN_START; + nscp_cmndinfo->phase = ((ha->scan_mode & 0x10 ? 1:0) << 8) | SCSIRAWSERVICE; ha->scan_mode = 0x12; TRACE2(("Scan mode: 0x%x (SCAN_START)\n", @@ -2095,8 +2175,8 @@ static void gdth_next(gdth_ha_str *ha) } } else if (ha->scan_mode == 0x12) { if (b == ha->bus_cnt && t == ha->tid_cnt-1) { - nscp->SCp.phase = SCSIRAWSERVICE; - nscp->SCp.sent_command = GDT_SCAN_END; + nscp_cmndinfo->phase = SCSIRAWSERVICE; + nscp_cmndinfo->OpCode = GDT_SCAN_END; ha->scan_mode &= 0x10; TRACE2(("Scan mode: 0x%x (SCAN_END)\n", ha->scan_mode)); @@ -2107,17 +2187,17 @@ static void gdth_next(gdth_ha_str *ha) nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE && (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) { /* always GDT_CLUST_INFO! */ - nscp->SCp.sent_command = GDT_CLUST_INFO; + nscp_cmndinfo->OpCode = GDT_CLUST_INFO; } } } - if (nscp->SCp.sent_command != -1) { - if ((nscp->SCp.phase & 0xff) == CACHESERVICE) { + if (nscp_cmndinfo->OpCode != -1) { + if ((nscp_cmndinfo->phase & 0xff) == CACHESERVICE) { if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t))) this_cmd = FALSE; next_cmd = FALSE; - } else if ((nscp->SCp.phase & 0xff) == SCSIRAWSERVICE) { + } else if ((nscp_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) { if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b)))) this_cmd = FALSE; next_cmd = FALSE; @@ -2126,12 +2206,12 @@ static void gdth_next(gdth_ha_str *ha) nscp->sense_buffer[0] = 0x70; nscp->sense_buffer[2] = NOT_READY; nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); } - } else if (IS_GDTH_INTERNAL_CMD(nscp)) { + } else if (gdth_cmnd_priv(nscp)->internal_command) { if (!(cmd_index=gdth_special_cmd(ha, nscp))) this_cmd = FALSE; next_cmd = FALSE; @@ -2145,8 +2225,8 @@ static void gdth_next(gdth_ha_str *ha) TRACE2(("Command 0x%x to bus %d id %d lun %d -> IGNORE\n", nscp->cmnd[0], b, t, l)); nscp->result = DID_BAD_TARGET << 16; - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); } else { @@ -2171,8 +2251,8 @@ static void gdth_next(gdth_ha_str *ha) nscp->sense_buffer[0] = 0x70; nscp->sense_buffer[2] = UNIT_ATTENTION; nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); } else if (gdth_internal_cache_cmd(ha, nscp)) @@ -2187,8 +2267,8 @@ static void gdth_next(gdth_ha_str *ha) TRACE(("Prevent r. nonremov. drive->do nothing\n")); nscp->result = DID_OK << 16; nscp->sense_buffer[0] = 0; - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); } else { @@ -2223,8 +2303,8 @@ static void gdth_next(gdth_ha_str *ha) nscp->sense_buffer[0] = 0x70; nscp->sense_buffer[2] = UNIT_ATTENTION; nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); } else if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t))) @@ -2238,8 +2318,8 @@ static void gdth_next(gdth_ha_str *ha) printk("GDT-HA %d: Unknown SCSI command 0x%x to cache service !\n", ha->hanum, nscp->cmnd[0]); nscp->result = DID_ABORT << 16; - if (!nscp->SCp.have_data_in) - nscp->SCp.have_data_in++; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; else gdth_scsi_done(nscp); break; @@ -2269,45 +2349,53 @@ static void gdth_next(gdth_ha_str *ha) ha->hanum, cmd_index); } } - + +/* + * gdth_copy_internal_data() - copy to/from a buffer onto a scsi_cmnd's + * buffers, kmap_atomic() as needed. + */ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp, - char *buffer,ushort count) + char *buffer, ushort count, int to_buffer) { - ushort cpcount,i; + ushort cpcount,i, max_sg = gdth_sg_count(scp); ushort cpsum,cpnow; struct scatterlist *sl; char *address; - cpcount = count<=(ushort)scp->request_bufflen ? count:(ushort)scp->request_bufflen; + cpcount = min_t(ushort, count, gdth_bufflen(scp)); - if (scp->use_sg) { - sl = (struct scatterlist *)scp->request_buffer; - for (i=0,cpsum=0; iuse_sg; ++i,++sl) { + if (cpcount) { + cpsum=0; + scsi_for_each_sg(scp, sl, max_sg, i) { unsigned long flags; cpnow = (ushort)sl->length; TRACE(("copy_internal() now %d sum %d count %d %d\n", - cpnow,cpsum,cpcount,(ushort)scp->bufflen)); + cpnow, cpsum, cpcount, gdth_bufflen(scp))); if (cpsum+cpnow > cpcount) cpnow = cpcount - cpsum; cpsum += cpnow; - if (!sl->page) { + if (!sg_page(sl)) { printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n", ha->hanum); return; } local_irq_save(flags); - address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset; - memcpy(address,buffer,cpnow); - flush_dcache_page(sl->page); + address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset; + if (to_buffer) + memcpy(buffer, address, cpnow); + else + memcpy(address, buffer, cpnow); + flush_dcache_page(sg_page(sl)); kunmap_atomic(address, KM_BIO_SRC_IRQ); local_irq_restore(flags); if (cpsum == cpcount) break; buffer += cpnow; } - } else { - TRACE(("copy_internal() count %d\n",cpcount)); - memcpy((char*)scp->request_buffer,buffer,cpcount); + } else if (count) { + printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n", + ha->hanum); + WARN_ON(1); } } @@ -2318,6 +2406,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) gdth_rdcap_data rdc; gdth_sense_data sd; gdth_modep_data mpd; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); t = scp->device->id; TRACE(("gdth_internal_cache_cmd() cmd 0x%x hdrive %d\n", @@ -2349,7 +2438,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) strcpy(inq.vendor,ha->oem_name); sprintf(inq.product,"Host Drive #%02d",t); strcpy(inq.revision," "); - gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data)); + gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data), 0); break; case REQUEST_SENSE: @@ -2359,7 +2448,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) sd.key = NO_SENSE; sd.info = 0; sd.add_length= 0; - gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data)); + gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data), 0); break; case MODE_SENSE: @@ -2371,7 +2460,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) mpd.bd.block_length[0] = (SECTOR_SIZE & 0x00ff0000) >> 16; mpd.bd.block_length[1] = (SECTOR_SIZE & 0x0000ff00) >> 8; mpd.bd.block_length[2] = (SECTOR_SIZE & 0x000000ff); - gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data)); + gdth_copy_internal_data(ha, scp, (char*)&mpd, sizeof(gdth_modep_data), 0); break; case READ_CAPACITY: @@ -2381,7 +2470,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) else rdc.last_block_no = cpu_to_be32(ha->hdr[t].size-1); rdc.block_length = cpu_to_be32(SECTOR_SIZE); - gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data)); + gdth_copy_internal_data(ha, scp, (char*)&rdc, sizeof(gdth_rdcap_data), 0); break; case SERVICE_ACTION_IN: @@ -2393,7 +2482,7 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) rdc16.last_block_no = cpu_to_be64(ha->hdr[t].size-1); rdc16.block_length = cpu_to_be32(SECTOR_SIZE); gdth_copy_internal_data(ha, scp, (char*)&rdc16, - sizeof(gdth_rdcap16_data)); + sizeof(gdth_rdcap16_data), 0); } else { scp->result = DID_ABORT << 16; } @@ -2404,8 +2493,8 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) break; } - if (!scp->SCp.have_data_in) - scp->SCp.have_data_in++; + if (!cmndinfo->wait_for_completion) + cmndinfo->wait_for_completion++; else return 1; @@ -2415,13 +2504,10 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) { register gdth_cmd_str *cmdp; - struct scatterlist *sl; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); ulong32 cnt, blockcnt; ulong64 no, blockno; - dma_addr_t phys_addr; int i, cmd_index, read_write, sgcnt, mode64; - struct page *page; - ulong offset; cmdp = ha->pccb; TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n", @@ -2448,8 +2534,8 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) /* fill command */ read_write = 0; - if (scp->SCp.sent_command != -1) - cmdp->OpCode = scp->SCp.sent_command; /* special cache cmd. */ + if (cmndinfo->OpCode != -1) + cmdp->OpCode = cmndinfo->OpCode; /* special cache cmd. */ else if (scp->cmnd[0] == RESERVE) cmdp->OpCode = GDT_RESERVE_DRV; else if (scp->cmnd[0] == RELEASE) @@ -2510,17 +2596,17 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) cmdp->u.cache.BlockCnt = blockcnt; } - if (scp->use_sg) { - sl = (struct scatterlist *)scp->request_buffer; - sgcnt = scp->use_sg; - scp->SCp.Status = GDTH_MAP_SG; - scp->SCp.Message = (read_write == 1 ? + if (gdth_bufflen(scp)) { + cmndinfo->dma_dir = (read_write == 1 ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); - sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message); + sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp), + cmndinfo->dma_dir); if (mode64) { + struct scatterlist *sl; + cmdp->u.cache64.DestAddr= (ulong64)-1; cmdp->u.cache64.sg_canz = sgcnt; - for (i=0; iu.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl); #ifdef GDTH_DMA_STATISTICS if (cmdp->u.cache64.sg_lst[i].sg_ptr > (ulong64)0xffffffff) @@ -2531,9 +2617,11 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) cmdp->u.cache64.sg_lst[i].sg_len = sg_dma_len(sl); } } else { + struct scatterlist *sl; + cmdp->u.cache.DestAddr= 0xffffffff; cmdp->u.cache.sg_canz = sgcnt; - for (i=0; iu.cache.sg_lst[i].sg_ptr = sg_dma_address(sl); #ifdef GDTH_DMA_STATISTICS ha->dma32_cnt++; @@ -2549,38 +2637,6 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) } #endif - } else if (scp->request_bufflen) { - scp->SCp.Status = GDTH_MAP_SINGLE; - scp->SCp.Message = (read_write == 1 ? - PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); - page = virt_to_page(scp->request_buffer); - offset = (ulong)scp->request_buffer & ~PAGE_MASK; - phys_addr = pci_map_page(ha->pdev,page,offset, - scp->request_bufflen,scp->SCp.Message); - scp->SCp.dma_handle = phys_addr; - if (mode64) { - if (ha->cache_feat & SCATTER_GATHER) { - cmdp->u.cache64.DestAddr = (ulong64)-1; - cmdp->u.cache64.sg_canz = 1; - cmdp->u.cache64.sg_lst[0].sg_ptr = phys_addr; - cmdp->u.cache64.sg_lst[0].sg_len = scp->request_bufflen; - cmdp->u.cache64.sg_lst[1].sg_len = 0; - } else { - cmdp->u.cache64.DestAddr = phys_addr; - cmdp->u.cache64.sg_canz= 0; - } - } else { - if (ha->cache_feat & SCATTER_GATHER) { - cmdp->u.cache.DestAddr = 0xffffffff; - cmdp->u.cache.sg_canz = 1; - cmdp->u.cache.sg_lst[0].sg_ptr = phys_addr; - cmdp->u.cache.sg_lst[0].sg_len = scp->request_bufflen; - cmdp->u.cache.sg_lst[1].sg_len = 0; - } else { - cmdp->u.cache.DestAddr = phys_addr; - cmdp->u.cache.sg_canz= 0; - } - } } } /* evaluate command size, check space */ @@ -2623,13 +2679,13 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive) static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) { register gdth_cmd_str *cmdp; - struct scatterlist *sl; ushort i; - dma_addr_t phys_addr, sense_paddr; + dma_addr_t sense_paddr; int cmd_index, sgcnt, mode64; unchar t,l; struct page *page; ulong offset; + struct gdth_cmndinfo *cmndinfo; t = scp->device->id; l = scp->device->lun; @@ -2653,18 +2709,19 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) if (ha->cmd_cnt == 0) gdth_set_sema0(ha); + cmndinfo = gdth_cmnd_priv(scp); /* fill command */ - if (scp->SCp.sent_command != -1) { - cmdp->OpCode = scp->SCp.sent_command; /* special raw cmd. */ + if (cmndinfo->OpCode != -1) { + cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */ cmdp->BoardNode = LOCALBOARD; if (mode64) { - cmdp->u.raw64.direction = (scp->SCp.phase >> 8); + cmdp->u.raw64.direction = (cmndinfo->phase >> 8); TRACE2(("special raw cmd 0x%x param 0x%x\n", cmdp->OpCode, cmdp->u.raw64.direction)); /* evaluate command size */ ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst); } else { - cmdp->u.raw.direction = (scp->SCp.phase >> 8); + cmdp->u.raw.direction = (cmndinfo->phase >> 8); TRACE2(("special raw cmd 0x%x param 0x%x\n", cmdp->OpCode, cmdp->u.raw.direction)); /* evaluate command size */ @@ -2676,9 +2733,8 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) offset = (ulong)scp->sense_buffer & ~PAGE_MASK; sense_paddr = pci_map_page(ha->pdev,page,offset, 16,PCI_DMA_FROMDEVICE); - *(ulong32 *)&scp->SCp.buffer = (ulong32)sense_paddr; - /* high part, if 64bit */ - *(ulong32 *)&scp->host_scribble = (ulong32)((ulong64)sense_paddr >> 32); + + cmndinfo->sense_paddr = sense_paddr; cmdp->OpCode = GDT_WRITE; /* always */ cmdp->BoardNode = LOCALBOARD; if (mode64) { @@ -2690,7 +2746,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) cmdp->u.raw64.lun = l; cmdp->u.raw64.bus = b; cmdp->u.raw64.priority = 0; - cmdp->u.raw64.sdlen = scp->request_bufflen; + cmdp->u.raw64.sdlen = gdth_bufflen(scp); cmdp->u.raw64.sense_len = 16; cmdp->u.raw64.sense_data = sense_paddr; cmdp->u.raw64.direction = @@ -2707,7 +2763,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) cmdp->u.raw.bus = b; cmdp->u.raw.priority = 0; cmdp->u.raw.link_p = 0; - cmdp->u.raw.sdlen = scp->request_bufflen; + cmdp->u.raw.sdlen = gdth_bufflen(scp); cmdp->u.raw.sense_len = 16; cmdp->u.raw.sense_data = sense_paddr; cmdp->u.raw.direction = @@ -2716,16 +2772,16 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) cmdp->u.raw.sg_ranz = 0; } - if (scp->use_sg) { - sl = (struct scatterlist *)scp->request_buffer; - sgcnt = scp->use_sg; - scp->SCp.Status = GDTH_MAP_SG; - scp->SCp.Message = PCI_DMA_BIDIRECTIONAL; - sgcnt = pci_map_sg(ha->pdev,sl,scp->use_sg,scp->SCp.Message); + if (gdth_bufflen(scp)) { + cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL; + sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp), + cmndinfo->dma_dir); if (mode64) { + struct scatterlist *sl; + cmdp->u.raw64.sdata = (ulong64)-1; cmdp->u.raw64.sg_ranz = sgcnt; - for (i=0; iu.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl); #ifdef GDTH_DMA_STATISTICS if (cmdp->u.raw64.sg_lst[i].sg_ptr > (ulong64)0xffffffff) @@ -2736,9 +2792,11 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) cmdp->u.raw64.sg_lst[i].sg_len = sg_dma_len(sl); } } else { + struct scatterlist *sl; + cmdp->u.raw.sdata = 0xffffffff; cmdp->u.raw.sg_ranz = sgcnt; - for (i=0; iu.raw.sg_lst[i].sg_ptr = sg_dma_address(sl); #ifdef GDTH_DMA_STATISTICS ha->dma32_cnt++; @@ -2754,38 +2812,6 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b) } #endif - } else if (scp->request_bufflen) { - scp->SCp.Status = GDTH_MAP_SINGLE; - scp->SCp.Message = PCI_DMA_BIDIRECTIONAL; - page = virt_to_page(scp->request_buffer); - offset = (ulong)scp->request_buffer & ~PAGE_MASK; - phys_addr = pci_map_page(ha->pdev,page,offset, - scp->request_bufflen,scp->SCp.Message); - scp->SCp.dma_handle = phys_addr; - - if (mode64) { - if (ha->raw_feat & SCATTER_GATHER) { - cmdp->u.raw64.sdata = (ulong64)-1; - cmdp->u.raw64.sg_ranz= 1; - cmdp->u.raw64.sg_lst[0].sg_ptr = phys_addr; - cmdp->u.raw64.sg_lst[0].sg_len = scp->request_bufflen; - cmdp->u.raw64.sg_lst[1].sg_len = 0; - } else { - cmdp->u.raw64.sdata = phys_addr; - cmdp->u.raw64.sg_ranz= 0; - } - } else { - if (ha->raw_feat & SCATTER_GATHER) { - cmdp->u.raw.sdata = 0xffffffff; - cmdp->u.raw.sg_ranz= 1; - cmdp->u.raw.sg_lst[0].sg_ptr = phys_addr; - cmdp->u.raw.sg_lst[0].sg_len = scp->request_bufflen; - cmdp->u.raw.sg_lst[1].sg_len = 0; - } else { - cmdp->u.raw.sdata = phys_addr; - cmdp->u.raw.sg_ranz= 0; - } - } } if (mode64) { TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n", @@ -2834,7 +2860,7 @@ static int gdth_special_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp) if (ha->type==GDT_EISA && ha->cmd_cnt>0) return 0; - memcpy( cmdp, scp->request_buffer, sizeof(gdth_cmd_str)); + gdth_copy_internal_data(ha, scp, (char *)cmdp, sizeof(gdth_cmd_str), 1); cmdp->RequestBuffer = scp; /* search free command index */ @@ -3010,15 +3036,14 @@ static void gdth_clear_events(void) /* SCSI interface functions */ -static irqreturn_t gdth_interrupt(int irq,void *dev_id) +static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, + int gdth_from_wait, int* pIndex) { - gdth_ha_str *ha2 = (gdth_ha_str *)dev_id; - register gdth_ha_str *ha; gdt6m_dpram_str __iomem *dp6m_ptr = NULL; gdt6_dpram_str __iomem *dp6_ptr; gdt2_dpram_str __iomem *dp2_ptr; Scsi_Cmnd *scp; - int hanum, rval, i; + int rval, i; unchar IStatus; ushort Service; ulong flags = 0; @@ -3029,7 +3054,7 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) int act_int_coal = 0; #endif - TRACE(("gdth_interrupt() IRQ %d\n",irq)); + TRACE(("gdth_interrupt() IRQ %d\n", ha->irq)); /* if polling and not from gdth_wait() -> return */ if (gdth_polling) { @@ -3039,17 +3064,16 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) } if (!gdth_polling) - spin_lock_irqsave(&ha2->smp_lock, flags); - wait_index = 0; + spin_lock_irqsave(&ha->smp_lock, flags); /* search controller */ - if ((hanum = gdth_get_status(&IStatus,irq)) == -1) { + IStatus = gdth_get_status(ha); + if (IStatus == 0) { /* spurious interrupt */ if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); - return IRQ_HANDLED; + spin_unlock_irqrestore(&ha->smp_lock, flags); + return IRQ_HANDLED; } - ha = shost_priv(gdth_ctr_tab[hanum]); #ifdef GDTH_STATISTICS ++act_ints; @@ -3181,7 +3205,7 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) } else { TRACE2(("gdth_interrupt() unknown controller type\n")); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); return IRQ_HANDLED; } @@ -3189,15 +3213,14 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) IStatus,ha->status,ha->info)); if (gdth_from_wait) { - wait_hanum = hanum; - wait_index = (int)IStatus; + *pIndex = (int)IStatus; } if (IStatus == ASYNCINDEX) { TRACE2(("gdth_interrupt() async. event\n")); gdth_async_event(ha); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); gdth_next(ha); return IRQ_HANDLED; } @@ -3205,10 +3228,10 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) if (IStatus == SPEZINDEX) { TRACE2(("Service unknown or not initialized !\n")); ha->dvr.size = sizeof(ha->dvr.eu.driver); - ha->dvr.eu.driver.ionode = hanum; + ha->dvr.eu.driver.ionode = ha->hanum; gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); return IRQ_HANDLED; } scp = ha->cmd_tab[IStatus-2].cmnd; @@ -3217,26 +3240,26 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) if (scp == UNUSED_CMND) { TRACE2(("gdth_interrupt() index to unused command (%d)\n",IStatus)); ha->dvr.size = sizeof(ha->dvr.eu.driver); - ha->dvr.eu.driver.ionode = hanum; + ha->dvr.eu.driver.ionode = ha->hanum; ha->dvr.eu.driver.index = IStatus; gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); return IRQ_HANDLED; } if (scp == INTERNAL_CMND) { TRACE(("gdth_interrupt() answer to internal command\n")); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); return IRQ_HANDLED; } TRACE(("gdth_interrupt() sync. status\n")); rval = gdth_sync_event(ha,Service,IStatus,scp); if (!gdth_polling) - spin_unlock_irqrestore(&ha2->smp_lock, flags); + spin_unlock_irqrestore(&ha->smp_lock, flags); if (rval == 2) { - gdth_putq(ha, scp,scp->SCp.this_residual); + gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority); } else if (rval == 1) { gdth_scsi_done(scp); } @@ -3270,12 +3293,20 @@ static irqreturn_t gdth_interrupt(int irq,void *dev_id) return IRQ_HANDLED; } +static irqreturn_t gdth_interrupt(int irq, void *dev_id) +{ + gdth_ha_str *ha = dev_id; + + return __gdth_interrupt(ha, false, NULL); +} + static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, Scsi_Cmnd *scp) { gdth_msg_str *msg; gdth_cmd_str *cmdp; unchar b, t; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); cmdp = ha->pccb; TRACE(("gdth_sync_event() serv %d status %d\n", @@ -3352,65 +3383,58 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, } else { b = scp->device->channel; t = scp->device->id; - if (scp->SCp.sent_command == -1 && b != ha->virt_bus) { + if (cmndinfo->OpCode == -1 && b != ha->virt_bus) { ha->raw[BUS_L2P(ha,b)].io_cnt[t]--; } /* cache or raw service */ if (ha->status == S_BSY) { TRACE2(("Controller busy -> retry !\n")); - if (scp->SCp.sent_command == GDT_MOUNT) - scp->SCp.sent_command = GDT_CLUST_INFO; + if (cmndinfo->OpCode == GDT_MOUNT) + cmndinfo->OpCode = GDT_CLUST_INFO; /* retry */ return 2; } - if (scp->SCp.Status == GDTH_MAP_SG) - pci_unmap_sg(ha->pdev,scp->request_buffer, - scp->use_sg,scp->SCp.Message); - else if (scp->SCp.Status == GDTH_MAP_SINGLE) - pci_unmap_page(ha->pdev,scp->SCp.dma_handle, - scp->request_bufflen,scp->SCp.Message); - if (scp->SCp.buffer) { - dma_addr_t addr; - addr = (dma_addr_t)*(ulong32 *)&scp->SCp.buffer; - if (scp->host_scribble) - addr += (dma_addr_t) - ((ulong64)(*(ulong32 *)&scp->host_scribble) << 32); - pci_unmap_page(ha->pdev,addr,16,PCI_DMA_FROMDEVICE); - } + if (gdth_bufflen(scp)) + pci_unmap_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp), + cmndinfo->dma_dir); + + if (cmndinfo->sense_paddr) + pci_unmap_page(ha->pdev, cmndinfo->sense_paddr, 16, + PCI_DMA_FROMDEVICE); if (ha->status == S_OK) { - scp->SCp.Status = S_OK; - scp->SCp.Message = ha->info; - if (scp->SCp.sent_command != -1) { + cmndinfo->status = S_OK; + cmndinfo->info = ha->info; + if (cmndinfo->OpCode != -1) { TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n", - scp->SCp.sent_command)); + cmndinfo->OpCode)); /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */ - if (scp->SCp.sent_command == GDT_CLUST_INFO) { + if (cmndinfo->OpCode == GDT_CLUST_INFO) { ha->hdr[t].cluster_type = (unchar)ha->info; if (!(ha->hdr[t].cluster_type & CLUSTER_MOUNTED)) { /* NOT MOUNTED -> MOUNT */ - scp->SCp.sent_command = GDT_MOUNT; + cmndinfo->OpCode = GDT_MOUNT; if (ha->hdr[t].cluster_type & CLUSTER_RESERVED) { /* cluster drive RESERVED (on the other node) */ - scp->SCp.phase = -2; /* reservation conflict */ + cmndinfo->phase = -2; /* reservation conflict */ } } else { - scp->SCp.sent_command = -1; + cmndinfo->OpCode = -1; } } else { - if (scp->SCp.sent_command == GDT_MOUNT) { + if (cmndinfo->OpCode == GDT_MOUNT) { ha->hdr[t].cluster_type |= CLUSTER_MOUNTED; ha->hdr[t].media_changed = TRUE; - } else if (scp->SCp.sent_command == GDT_UNMOUNT) { + } else if (cmndinfo->OpCode == GDT_UNMOUNT) { ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED; ha->hdr[t].media_changed = TRUE; } - scp->SCp.sent_command = -1; + cmndinfo->OpCode = -1; } /* retry */ - scp->SCp.this_residual = HIGH_PRI; + cmndinfo->priority = HIGH_PRI; return 2; } else { /* RESERVE/RELEASE ? */ @@ -3423,17 +3447,17 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, scp->sense_buffer[0] = 0; } } else { - scp->SCp.Status = ha->status; - scp->SCp.Message = ha->info; + cmndinfo->status = ha->status; + cmndinfo->info = ha->info; - if (scp->SCp.sent_command != -1) { + if (cmndinfo->OpCode != -1) { TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n", - scp->SCp.sent_command, ha->status)); - if (scp->SCp.sent_command == GDT_SCAN_START || - scp->SCp.sent_command == GDT_SCAN_END) { - scp->SCp.sent_command = -1; + cmndinfo->OpCode, ha->status)); + if (cmndinfo->OpCode == GDT_SCAN_START || + cmndinfo->OpCode == GDT_SCAN_END) { + cmndinfo->OpCode = -1; /* retry */ - scp->SCp.this_residual = HIGH_PRI; + cmndinfo->priority = HIGH_PRI; return 2; } memset((char*)scp->sense_buffer,0,16); @@ -3455,7 +3479,7 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, scp->sense_buffer[2] = NOT_READY; scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); } - if (!IS_GDTH_INTERNAL_CMD(scp)) { + if (!cmndinfo->internal_command) { ha->dvr.size = sizeof(ha->dvr.eu.sync); ha->dvr.eu.sync.ionode = ha->hanum; ha->dvr.eu.sync.service = service; @@ -3476,8 +3500,8 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index, } } } - if (!scp->SCp.have_data_in) - scp->SCp.have_data_in++; + if (!cmndinfo->wait_for_completion) + cmndinfo->wait_for_completion++; else return 1; } @@ -3770,7 +3794,7 @@ static void gdth_timeout(ulong data) gdth_ha_str *ha; ulong flags; - ha = shost_priv(gdth_ctr_tab[0]); + ha = list_first_entry(&gdth_instances, gdth_ha_str, list); spin_lock_irqsave(&ha->smp_lock, flags); for (act_stats=0,i=0; i= MAXHA) - break; - gdth_isa_probe_one(shtp, isa_bios); - } -#endif -#ifdef CONFIG_EISA - { - ushort eisa_slot; - for (eisa_slot = 0x1000; eisa_slot <= 0x8000; eisa_slot += 0x1000) { - if (gdth_ctr_count >= MAXHA) - break; - gdth_eisa_probe_one(shtp, eisa_slot); - } - } -#endif - } - -#ifdef CONFIG_PCI - /* scanning for PCI controllers */ - { - gdth_pci_str pcistr[MAXHA]; - int cnt,ctr; - - cnt = gdth_search_pci(pcistr); - printk("GDT-HA: Found %d PCI Storage RAID Controllers\n",cnt); - gdth_sort_pci(pcistr,cnt); - for (ctr = 0; ctr < cnt; ++ctr) { - if (gdth_ctr_count >= MAXHA) - break; - gdth_pci_probe_one(shtp, pcistr, ctr); - } - } -#endif /* CONFIG_PCI */ - - TRACE2(("gdth_detect() %d controller detected\n",gdth_ctr_count)); - if (gdth_ctr_count > 0) { -#ifdef GDTH_STATISTICS - TRACE2(("gdth_detect(): Initializing timer !\n")); - init_timer(&gdth_timer); - gdth_timer.expires = jiffies + HZ; - gdth_timer.data = 0L; - gdth_timer.function = gdth_timeout; - add_timer(&gdth_timer); -#endif - major = register_chrdev(0,"gdth",&gdth_fops); - notifier_disabled = 0; - register_reboot_notifier(&gdth_notifier); - } - gdth_polling = FALSE; - return gdth_ctr_count; -} - -static int gdth_release(struct Scsi_Host *shp) -{ - gdth_ha_str *ha = shost_priv(shp); - - TRACE2(("gdth_release()\n")); - if (ha->sdev) { - scsi_free_host_dev(ha->sdev); - ha->sdev = NULL; - } - gdth_flush(ha); - - if (shp->irq) { - free_irq(shp->irq,ha); - } -#ifdef CONFIG_ISA - if (shp->dma_channel != 0xff) { - free_dma(shp->dma_channel); - } -#endif -#ifdef INT_COAL - if (ha->coal_stat) - pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * - MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys); -#endif - if (ha->pscratch) - pci_free_consistent(ha->pdev, GDTH_SCRATCH, - ha->pscratch, ha->scratch_phys); - if (ha->pmsg) - pci_free_consistent(ha->pdev, sizeof(gdth_msg_str), - ha->pmsg, ha->msg_phys); - if (ha->ccb_phys) - pci_unmap_single(ha->pdev,ha->ccb_phys, - sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL); - gdth_ctr_released++; - TRACE2(("gdth_release(): HA %d of %d\n", - gdth_ctr_released, gdth_ctr_count)); - - if (gdth_ctr_released == gdth_ctr_count) { -#ifdef GDTH_STATISTICS - del_timer(&gdth_timer); -#endif - unregister_chrdev(major,"gdth"); - unregister_reboot_notifier(&gdth_notifier); - } - - scsi_unregister(shp); - return 0; -} - - static const char *gdth_ctr_name(gdth_ha_str *ha) { TRACE2(("gdth_ctr_name()\n")); @@ -4139,28 +4024,37 @@ static int gdth_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { gdth_ha_str *ha = shost_priv(scp->device->host); - int priority; + struct gdth_cmndinfo *cmndinfo; TRACE(("gdth_queuecommand() cmd 0x%x\n", scp->cmnd[0])); - + + cmndinfo = gdth_get_cmndinfo(ha); + BUG_ON(!cmndinfo); + scp->scsi_done = done; - scp->SCp.have_data_in = 1; - scp->SCp.phase = -1; - scp->SCp.sent_command = -1; - scp->SCp.Status = GDTH_MAP_NONE; - scp->SCp.buffer = (struct scatterlist *)NULL; + gdth_update_timeout(scp, scp->timeout_per_command * 6); + cmndinfo->priority = DEFAULT_PRI; + + gdth_set_bufflen(scp, scsi_bufflen(scp)); + gdth_set_sg_count(scp, scsi_sg_count(scp)); + gdth_set_sglist(scp, scsi_sglist(scp)); + + return __gdth_queuecommand(ha, scp, cmndinfo); +} + +static int __gdth_queuecommand(gdth_ha_str *ha, struct scsi_cmnd *scp, + struct gdth_cmndinfo *cmndinfo) +{ + scp->host_scribble = (unsigned char *)cmndinfo; + cmndinfo->wait_for_completion = 1; + cmndinfo->phase = -1; + cmndinfo->OpCode = -1; #ifdef GDTH_STATISTICS ++act_ios; #endif - priority = DEFAULT_PRI; - if (IS_GDTH_INTERNAL_CMD(scp)) - priority = scp->SCp.this_residual; - else - gdth_update_timeout(scp, scp->timeout_per_command * 6); - - gdth_putq(ha, scp, priority); + gdth_putq(ha, scp, cmndinfo->priority); gdth_next(ha); return 0; } @@ -4169,12 +4063,10 @@ static int gdth_queuecommand(struct scsi_cmnd *scp, static int gdth_open(struct inode *inode, struct file *filep) { gdth_ha_str *ha; - int i; - for (i = 0; i < gdth_ctr_count; i++) { - ha = shost_priv(gdth_ctr_tab[i]); + list_for_each_entry(ha, &gdth_instances, list) { if (!ha->sdev) - ha->sdev = scsi_get_host_dev(gdth_ctr_tab[i]); + ha->sdev = scsi_get_host_dev(ha->shost); } TRACE(("gdth_open()\n")); @@ -4193,10 +4085,11 @@ static int ioc_event(void __user *arg) gdth_ha_str *ha; ulong flags; - if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event)) || - evt.ionode >= gdth_ctr_count) + if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event))) + return -EFAULT; + ha = gdth_find_ha(evt.ionode); + if (!ha) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[evt.ionode]); if (evt.erase == 0xff) { if (evt.event.event_source == ES_TEST) @@ -4230,11 +4123,12 @@ static int ioc_lockdrv(void __user *arg) ulong flags; gdth_ha_str *ha; - if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv)) || - ldrv.ionode >= gdth_ctr_count) + if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv))) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[ldrv.ionode]); - + ha = gdth_find_ha(ldrv.ionode); + if (!ha) + return -EFAULT; + for (i = 0; i < ldrv.drive_cnt && i < MAX_HDRIVES; ++i) { j = ldrv.drives[i]; if (j >= MAX_HDRIVES || !ha->hdr[j].present) @@ -4264,9 +4158,11 @@ static int ioc_resetdrv(void __user *arg, char *cmnd) int rval; if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) || - res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES) + res.number >= MAX_HDRIVES) + return -EFAULT; + ha = gdth_find_ha(res.ionode); + if (!ha) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[res.ionode]); if (!ha->hdr[res.number].present) return 0; @@ -4295,11 +4191,12 @@ static int ioc_general(void __user *arg, char *cmnd) ulong64 paddr; gdth_ha_str *ha; int rval; - - if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) || - gen.ionode >= gdth_ctr_count) + + if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general))) + return -EFAULT; + ha = gdth_find_ha(gen.ionode); + if (!ha) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[gen.ionode]); if (gen.data_len + gen.sense_len != 0) { if (!(buf = gdth_ioctl_alloc(ha, gen.data_len + gen.sense_len, FALSE, &paddr))) @@ -4419,11 +4316,10 @@ static int ioc_hdrlist(void __user *arg, char *cmnd) goto free_fail; if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) || - rsc->ionode >= gdth_ctr_count) { + (NULL == (ha = gdth_find_ha(rsc->ionode)))) { rc = -EFAULT; goto free_fail; } - ha = shost_priv(gdth_ctr_tab[rsc->ionode]); memset(cmd, 0, sizeof(gdth_cmd_str)); for (i = 0; i < MAX_HDRIVES; ++i) { @@ -4475,11 +4371,10 @@ static int ioc_rescan(void __user *arg, char *cmnd) goto free_fail; if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) || - rsc->ionode >= gdth_ctr_count) { + (NULL == (ha = gdth_find_ha(rsc->ionode)))) { rc = -EFAULT; goto free_fail; } - ha = shost_priv(gdth_ctr_tab[rsc->ionode]); memset(cmd, 0, sizeof(gdth_cmd_str)); if (rsc->flag == 0) { @@ -4636,9 +4531,9 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, gdth_ioctl_ctrtype ctrt; if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) || - ctrt.ionode >= gdth_ctr_count) + (NULL == (ha = gdth_find_ha(ctrt.ionode)))) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[ctrt.ionode]); + if (ha->type == GDT_ISA || ha->type == GDT_EISA) { ctrt.type = (unchar)((ha->stype>>20) - 0x10); } else { @@ -4677,10 +4572,9 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, unchar i, j; if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) || - lchn.ionode >= gdth_ctr_count) + (NULL == (ha = gdth_find_ha(lchn.ionode)))) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[lchn.ionode]); - + i = lchn.channel; if (i < ha->bus_cnt) { if (lchn.lock) { @@ -4716,16 +4610,14 @@ static int gdth_ioctl(struct inode *inode, struct file *filep, int rval; if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) || - res.ionode >= gdth_ctr_count) + (NULL == (ha = gdth_find_ha(res.ionode)))) return -EFAULT; - ha = shost_priv(gdth_ctr_tab[res.ionode]); scp = kzalloc(sizeof(*scp), GFP_KERNEL); if (!scp) return -ENOMEM; scp->device = ha->sdev; scp->cmd_len = 12; - scp->use_sg = 0; scp->device->channel = res.number; rval = gdth_eh_bus_reset(scp); res.status = (rval == SUCCESS ? S_OK : S_GENERR); @@ -4780,7 +4672,7 @@ static void gdth_flush(gdth_ha_str *ha) /* shutdown routine */ static int gdth_halt(struct notifier_block *nb, ulong event, void *buf) { - int hanum; + gdth_ha_str *ha; #ifndef __alpha__ gdth_cmd_str gdtcmd; char cmnd[MAX_COMMAND_SIZE]; @@ -4795,8 +4687,7 @@ static int gdth_halt(struct notifier_block *nb, ulong event, void *buf) notifier_disabled = 1; printk("GDT-HA: Flushing all host drives .. "); - for (hanum = 0; hanum < gdth_ctr_count; ++hanum) { - gdth_ha_str *ha = shost_priv(gdth_ctr_tab[hanum]); + list_for_each_entry(ha, &gdth_instances, list) { gdth_flush(ha); #ifndef __alpha__ @@ -4826,10 +4717,8 @@ static int gdth_slave_configure(struct scsi_device *sdev) return 0; } -static struct scsi_host_template driver_template = { +static struct scsi_host_template gdth_template = { .name = "GDT SCSI Disk Array Controller", - .detect = gdth_detect, - .release = gdth_release, .info = gdth_info, .queuecommand = gdth_queuecommand, .eh_bus_reset_handler = gdth_eh_bus_reset, @@ -4846,17 +4735,17 @@ static struct scsi_host_template driver_template = { }; #ifdef CONFIG_ISA -static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios) +static int __init gdth_isa_probe_one(ulong32 isa_bios) { struct Scsi_Host *shp; gdth_ha_str *ha; dma_addr_t scratch_dma_handle = 0; - int error, hanum, i; + int error, i; if (!gdth_search_isa(isa_bios)) return -ENXIO; - shp = scsi_register(shtp, sizeof(gdth_ha_str)); + shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str)); if (!shp) return -ENOMEM; ha = shost_priv(shp); @@ -4886,10 +4775,8 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios) shp->unchecked_isa_dma = 1; shp->irq = ha->irq; shp->dma_channel = ha->drq; - hanum = gdth_ctr_count; - gdth_ctr_tab[gdth_ctr_count++] = shp; - ha->hanum = (ushort)hanum; + ha->hanum = gdth_ctr_count++; ha->shost = shp; ha->pccb = &ha->cmdext; @@ -4948,6 +4835,13 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios) spin_lock_init(&ha->smp_lock); gdth_enable_int(ha); + error = scsi_add_host(shp, NULL); + if (error) + goto out_free_coal_stat; + list_add_tail(&ha->list, &gdth_instances); + + scsi_scan_host(shp); + return 0; out_free_coal_stat: @@ -4966,24 +4860,23 @@ static int gdth_isa_probe_one(struct scsi_host_template *shtp, ulong32 isa_bios) out_free_irq: free_irq(ha->irq, ha); out_host_put: - scsi_unregister(shp); + scsi_host_put(shp); return error; } #endif /* CONFIG_ISA */ #ifdef CONFIG_EISA -static int gdth_eisa_probe_one(struct scsi_host_template *shtp, - ushort eisa_slot) +static int __init gdth_eisa_probe_one(ushort eisa_slot) { struct Scsi_Host *shp; gdth_ha_str *ha; dma_addr_t scratch_dma_handle = 0; - int error, hanum, i; + int error, i; if (!gdth_search_eisa(eisa_slot)) return -ENXIO; - shp = scsi_register(shtp,sizeof(gdth_ha_str)); + shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str)); if (!shp) return -ENOMEM; ha = shost_priv(shp); @@ -5005,10 +4898,8 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp, shp->unchecked_isa_dma = 0; shp->irq = ha->irq; shp->dma_channel = 0xff; - hanum = gdth_ctr_count; - gdth_ctr_tab[gdth_ctr_count++] = shp; - ha->hanum = (ushort)hanum; + ha->hanum = gdth_ctr_count++; ha->shost = shp; TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum)); @@ -5073,6 +4964,14 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp, spin_lock_init(&ha->smp_lock); gdth_enable_int(ha); + + error = scsi_add_host(shp, NULL); + if (error) + goto out_free_coal_stat; + list_add_tail(&ha->list, &gdth_instances); + + scsi_scan_host(shp); + return 0; out_free_ccb_phys: @@ -5093,21 +4992,20 @@ static int gdth_eisa_probe_one(struct scsi_host_template *shtp, free_irq(ha->irq, ha); gdth_ctr_count--; out_host_put: - scsi_unregister(shp); + scsi_host_put(shp); return error; } #endif /* CONFIG_EISA */ #ifdef CONFIG_PCI -static int gdth_pci_probe_one(struct scsi_host_template *shtp, - gdth_pci_str *pcistr, int ctr) +static int __init gdth_pci_probe_one(gdth_pci_str *pcistr, int ctr) { struct Scsi_Host *shp; gdth_ha_str *ha; dma_addr_t scratch_dma_handle = 0; - int error, hanum, i; + int error, i; - shp = scsi_register(shtp,sizeof(gdth_ha_str)); + shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str)); if (!shp) return -ENOMEM; ha = shost_priv(shp); @@ -5132,10 +5030,8 @@ static int gdth_pci_probe_one(struct scsi_host_template *shtp, shp->unchecked_isa_dma = 0; shp->irq = ha->irq; shp->dma_channel = 0xff; - hanum = gdth_ctr_count; - gdth_ctr_tab[gdth_ctr_count++] = shp; - ha->hanum = (ushort)hanum; + ha->hanum = gdth_ctr_count++; ha->shost = shp; ha->pccb = &ha->cmdext; @@ -5208,6 +5104,14 @@ static int gdth_pci_probe_one(struct scsi_host_template *shtp, spin_lock_init(&ha->smp_lock); gdth_enable_int(ha); + + error = scsi_add_host(shp, &pcistr[ctr].pdev->dev); + if (error) + goto out_free_coal_stat; + list_add_tail(&ha->list, &gdth_instances); + + scsi_scan_host(shp); + return 0; out_free_coal_stat: @@ -5225,12 +5129,136 @@ static int gdth_pci_probe_one(struct scsi_host_template *shtp, free_irq(ha->irq, ha); gdth_ctr_count--; out_host_put: - scsi_unregister(shp); + scsi_host_put(shp); return error; } #endif /* CONFIG_PCI */ -#include "scsi_module.c" +static void gdth_remove_one(gdth_ha_str *ha) +{ + struct Scsi_Host *shp = ha->shost; + + TRACE2(("gdth_remove_one()\n")); + + scsi_remove_host(shp); + + if (ha->sdev) { + scsi_free_host_dev(ha->sdev); + ha->sdev = NULL; + } + + gdth_flush(ha); + + if (shp->irq) + free_irq(shp->irq,ha); + +#ifdef CONFIG_ISA + if (shp->dma_channel != 0xff) + free_dma(shp->dma_channel); +#endif +#ifdef INT_COAL + if (ha->coal_stat) + pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * + MAXOFFSETS, ha->coal_stat, ha->coal_stat_phys); +#endif + if (ha->pscratch) + pci_free_consistent(ha->pdev, GDTH_SCRATCH, + ha->pscratch, ha->scratch_phys); + if (ha->pmsg) + pci_free_consistent(ha->pdev, sizeof(gdth_msg_str), + ha->pmsg, ha->msg_phys); + if (ha->ccb_phys) + pci_unmap_single(ha->pdev,ha->ccb_phys, + sizeof(gdth_cmd_str),PCI_DMA_BIDIRECTIONAL); + + scsi_host_put(shp); +} + +static int __init gdth_init(void) +{ + if (disable) { + printk("GDT-HA: Controller driver disabled from" + " command line !\n"); + return 0; + } + + printk("GDT-HA: Storage RAID Controller Driver. Version: %s\n", + GDTH_VERSION_STR); + + /* initializations */ + gdth_polling = TRUE; + gdth_clear_events(); + + /* As default we do not probe for EISA or ISA controllers */ + if (probe_eisa_isa) { + /* scanning for controllers, at first: ISA controller */ +#ifdef CONFIG_ISA + ulong32 isa_bios; + for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL; + isa_bios += 0x8000UL) + gdth_isa_probe_one(isa_bios); +#endif +#ifdef CONFIG_EISA + { + ushort eisa_slot; + for (eisa_slot = 0x1000; eisa_slot <= 0x8000; + eisa_slot += 0x1000) + gdth_eisa_probe_one(eisa_slot); + } +#endif + } + +#ifdef CONFIG_PCI + /* scanning for PCI controllers */ + { + gdth_pci_str pcistr[MAXHA]; + int cnt,ctr; + + cnt = gdth_search_pci(pcistr); + printk("GDT-HA: Found %d PCI Storage RAID Controllers\n", cnt); + gdth_sort_pci(pcistr,cnt); + for (ctr = 0; ctr < cnt; ++ctr) + gdth_pci_probe_one(pcistr, ctr); + } +#endif /* CONFIG_PCI */ + + TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count)); + + if (list_empty(&gdth_instances)) + return -ENODEV; + +#ifdef GDTH_STATISTICS + TRACE2(("gdth_detect(): Initializing timer !\n")); + init_timer(&gdth_timer); + gdth_timer.expires = jiffies + HZ; + gdth_timer.data = 0L; + gdth_timer.function = gdth_timeout; + add_timer(&gdth_timer); +#endif + major = register_chrdev(0,"gdth", &gdth_fops); + notifier_disabled = 0; + register_reboot_notifier(&gdth_notifier); + gdth_polling = FALSE; + return 0; +} + +static void __exit gdth_exit(void) +{ + gdth_ha_str *ha; + + list_for_each_entry(ha, &gdth_instances, list) + gdth_remove_one(ha); + +#ifdef GDTH_STATISTICS + del_timer(&gdth_timer); +#endif + unregister_chrdev(major,"gdth"); + unregister_reboot_notifier(&gdth_notifier); +} + +module_init(gdth_init); +module_exit(gdth_exit); + #ifndef MODULE __setup("gdth=", option_setup); #endif