diff options
Diffstat (limited to 'drivers/scsi/gdth.c')
| -rw-r--r-- | drivers/scsi/gdth.c | 4322 |
1 files changed, 4322 insertions, 0 deletions
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c new file mode 100644 index 000000000..5d8013886 --- /dev/null +++ b/drivers/scsi/gdth.c @@ -0,0 +1,4322 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/************************************************************************ + * Linux driver for * + * ICP vortex GmbH: GDT PCI Disk Array Controllers * + * Intel Corporation: Storage RAID Controllers * + * * + * gdth.c * + * Copyright (C) 1995-06 ICP vortex GmbH, Achim Leubner * + * Copyright (C) 2002-04 Intel Corporation * + * Copyright (C) 2003-06 Adaptec Inc. * + * <achim_leubner@adaptec.com> * + * * + * Additions/Fixes: * + * Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> * + * Johannes Dinner <johannes_dinner@adaptec.com> * + * * + * * + * Linux kernel 2.6.x supported * + * * + ************************************************************************/ + +/* All GDT Disk Array Controllers are fully supported by this driver. + * This includes the PCI SCSI Disk Array Controllers and the + * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete + * list of all controller types. + * + * After the optional list of IRQ values, other possible + * command line options are: + * disable:Y disable driver + * disable:N enable driver + * reserve_mode:0 reserve no drives for the raw service + * reserve_mode:1 reserve all not init., removable drives + * reserve_mode:2 reserve all not init. drives + * reserve_list:h,b,t,l,h,b,t,l,... reserve particular drive(s) with + * h- controller no., b- channel no., + * t- target ID, l- LUN + * reverse_scan:Y reverse scan order for PCI controllers + * reverse_scan:N scan PCI controllers like BIOS + * max_ids:x x - target ID count per channel (1..MAXID) + * rescan:Y rescan all channels/IDs + * rescan:N use all devices found until now + * hdr_channel:x x - number of virtual bus for host drives + * shared_access:Y disable driver reserve/release protocol to + * access a shared resource from several nodes, + * appropriate controller firmware required + * shared_access:N enable driver reserve/release protocol + * force_dma32:Y use only 32 bit DMA mode + * force_dma32:N use 64 bit DMA mode, if supported + * + * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N, + * max_ids:127,rescan:N,hdr_channel:0, + * shared_access:Y,force_dma32:N". + * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y". + * + * When loading the gdth driver as a module, the same options are available. + * You can set the IRQs with "IRQ=...". However, the syntax to specify the + * options changes slightly. You must replace all ',' between options + * with ' ' and all ':' with '=' and you must use + * '1' in place of 'Y' and '0' in place of 'N'. + * + * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0 + * max_ids=127 rescan=0 hdr_channel=0 shared_access=0 + * force_dma32=0" + * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1". + */ + +/* The meaning of the Scsi_Pointer members in this driver is as follows: + * ptr: Chaining + * this_residual: unused + * buffer: unused + * dma_handle: unused + * buffers_residual: unused + * Status: unused + * Message: unused + * have_data_in: unused + * sent_command: unused + * phase: unused + */ + +/* statistics */ +#define GDTH_STATISTICS + +#include <linux/module.h> + +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/in.h> +#include <linux/proc_fs.h> +#include <linux/time.h> +#include <linux/timer.h> +#include <linux/dma-mapping.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/reboot.h> + +#include <asm/dma.h> +#include <asm/io.h> +#include <linux/uaccess.h> +#include <linux/spinlock.h> +#include <linux/blkdev.h> +#include <linux/scatterlist.h> + +#include "scsi.h" +#include <scsi/scsi_host.h> +#include "gdth.h" + +static DEFINE_MUTEX(gdth_mutex); +static void gdth_delay(int milliseconds); +static void gdth_eval_mapping(u32 size, u32 *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, u8 index, + struct scsi_cmnd *scp); +static int gdth_async_event(gdth_ha_str *ha); +static void gdth_log_event(gdth_evt_data *dvr, char *buffer); + +static void gdth_putq(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 priority); +static void gdth_next(gdth_ha_str *ha); +static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b); +static int gdth_special_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp); +static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source, + u16 idx, gdth_evt_data *evt); +static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr); +static void gdth_readapp_event(gdth_ha_str *ha, u8 application, + gdth_evt_str *estr); +static void gdth_clear_events(void); + +static void gdth_copy_internal_data(gdth_ha_str *ha, struct scsi_cmnd *scp, + char *buffer, u16 count); +static int gdth_internal_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp); +static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, + u16 hdrive); + +static void gdth_enable_int(gdth_ha_str *ha); +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); +static int gdth_wait(gdth_ha_str *ha, int index,u32 time); +static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode, + u32 p1, u64 p2,u64 p3); +static int gdth_search_drives(gdth_ha_str *ha); +static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive); + +static const char *gdth_ctr_name(gdth_ha_str *ha); + +static int gdth_open(struct inode *inode, struct file *filep); +static int gdth_close(struct inode *inode, struct file *filep); +static long gdth_unlocked_ioctl(struct file *filep, unsigned int cmd, + unsigned long arg); + +static void gdth_flush(gdth_ha_str *ha); +static int gdth_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); +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 DEBUG_GDTH +static u8 DebugState = DEBUG_GDTH; +#define TRACE(a) {if (DebugState==1) {printk a;}} +#define TRACE2(a) {if (DebugState==1 || DebugState==2) {printk a;}} +#define TRACE3(a) {if (DebugState!=0) {printk a;}} +#else /* !DEBUG */ +#define TRACE(a) +#define TRACE2(a) +#define TRACE3(a) +#endif + +#ifdef GDTH_STATISTICS +static u32 max_rq=0, max_index=0, max_sg=0; +static u32 act_ints=0, act_ios=0, act_stats=0, act_rq=0; +static struct timer_list gdth_timer; +#endif + +#define PTR2USHORT(a) (u16)(unsigned long)(a) +#define GDTOFFSOF(a,b) (size_t)&(((a*)0)->b) +#define INDEX_OK(i,t) ((i)<ARRAY_SIZE(t)) + +#define BUS_L2P(a,b) ((b)>(a)->virt_bus ? (b-1):(b)) + +static u8 gdth_polling; /* polling if TRUE */ +static int gdth_ctr_count = 0; /* controller count */ +static LIST_HEAD(gdth_instances); /* controller list */ +static u8 gdth_write_through = FALSE; /* write through */ +static gdth_evt_str ebuffer[MAX_EVENTS]; /* event buffer */ +static int elastidx; +static int eoldidx; +static int major; + +#define DIN 1 /* IN data direction */ +#define DOU 2 /* OUT data direction */ +#define DNO DIN /* no data transfer */ +#define DUN DIN /* unknown data direction */ +static u8 gdth_direction_tab[0x100] = { + DNO,DNO,DIN,DIN,DOU,DIN,DIN,DOU,DIN,DUN,DOU,DOU,DUN,DUN,DUN,DIN, + DNO,DIN,DIN,DOU,DIN,DOU,DNO,DNO,DOU,DNO,DIN,DNO,DIN,DOU,DNO,DUN, + DIN,DUN,DIN,DUN,DOU,DIN,DUN,DUN,DIN,DIN,DOU,DNO,DUN,DIN,DOU,DOU, + DOU,DOU,DOU,DNO,DIN,DNO,DNO,DIN,DOU,DOU,DOU,DOU,DIN,DOU,DIN,DOU, + DOU,DOU,DIN,DIN,DIN,DNO,DUN,DNO,DNO,DNO,DUN,DNO,DOU,DIN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DIN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN,DOU,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DIN,DUN, + DUN,DUN,DUN,DUN,DUN,DNO,DNO,DUN,DIN,DNO,DOU,DUN,DNO,DUN,DOU,DOU, + DOU,DOU,DOU,DNO,DUN,DIN,DOU,DIN,DIN,DUN,DUN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DOU,DUN,DUN,DUN,DUN,DUN, + DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN,DUN +}; + +/* LILO and modprobe/insmod parameters */ +/* disable driver flag */ +static int disable __initdata = 0; +/* reserve flag */ +static int reserve_mode = 1; +/* reserve list */ +static int reserve_list[MAX_RES_ARGS] = +{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, + 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; +/* scan order for PCI controllers */ +static int reverse_scan = 0; +/* virtual channel for the host drives */ +static int hdr_channel = 0; +/* max. IDs per channel */ +static int max_ids = MAXID; +/* rescan all IDs */ +static int rescan = 0; +/* shared access */ +static int shared_access = 1; +/* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */ +static int force_dma32 = 0; + +/* parameters for modprobe/insmod */ +module_param(disable, int, 0); +module_param(reserve_mode, int, 0); +module_param_array(reserve_list, int, NULL, 0); +module_param(reverse_scan, int, 0); +module_param(hdr_channel, int, 0); +module_param(max_ids, int, 0); +module_param(rescan, int, 0); +module_param(shared_access, int, 0); +module_param(force_dma32, int, 0); +MODULE_AUTHOR("Achim Leubner"); +MODULE_LICENSE("GPL"); + +/* ioctl interface */ +static const struct file_operations gdth_fops = { + .unlocked_ioctl = gdth_unlocked_ioctl, + .open = gdth_open, + .release = gdth_close, + .llseek = noop_llseek, +}; + +#include "gdth_proc.h" +#include "gdth_proc.c" + +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; + unsigned long flags; + int i; + + spin_lock_irqsave(&ha->smp_lock, flags); + + for (i=0; i<GDTH_MAXCMDS; ++i) { + if (ha->cmndinfo[i].index == 0) { + priv = &ha->cmndinfo[i]; + memset(priv, 0, sizeof(*priv)); + priv->index = i+1; + 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) { + udelay(1); + } else { + mdelay(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")); + + gdth_put_cmndinfo(cmndinfo); + scp->host_scribble = NULL; + + if (internal_command) + complete((struct completion *)scp->request); + else + scp->scsi_done(scp); +} + +static 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); + struct scsi_cmnd *scp; + struct gdth_cmndinfo cmndinfo; + DECLARE_COMPLETION_ONSTACK(wait); + int rval; + + scp = kzalloc(sizeof(*scp), GFP_KERNEL); + if (!scp) + return -ENOMEM; + + scp->sense_buffer = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); + if (!scp->sense_buffer) { + kfree(scp); + 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->cmd_len = 12; + scp->cmnd = cmnd; + cmndinfo.priority = IOCTL_PRI; + cmndinfo.internal_cmd_str = gdtcmd; + cmndinfo.internal_command = 1; + + TRACE(("__gdth_execute() cmd 0x%x\n", scp->cmnd[0])); + __gdth_queuecommand(ha, scp, &cmndinfo); + + wait_for_completion(&wait); + + rval = cmndinfo.status; + if (info) + *info = cmndinfo.info; + kfree(scp->sense_buffer); + kfree(scp); + return rval; +} + +int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd, + int timeout, u32 *info) +{ + struct scsi_device *sdev = scsi_get_host_dev(shost); + int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info); + + scsi_free_host_dev(sdev); + return rval; +} + +static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs) +{ + *cyls = size /HEADS/SECS; + if (*cyls <= MAXCYLS) { + *heads = HEADS; + *secs = SECS; + } else { /* too high for 64*32 */ + *cyls = size /MEDHEADS/MEDSECS; + if (*cyls <= MAXCYLS) { + *heads = MEDHEADS; + *secs = MEDSECS; + } else { /* too high for 127*63 */ + *cyls = size /BIGHEADS/BIGSECS; + *heads = BIGHEADS; + *secs = BIGSECS; + } + } +} + +static bool gdth_search_vortex(u16 device) +{ + if (device <= PCI_DEVICE_ID_VORTEX_GDT6555) + return true; + if (device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP && + device <= PCI_DEVICE_ID_VORTEX_GDTMAXRP) + return true; + if (device == PCI_DEVICE_ID_VORTEX_GDTNEWRX || + device == PCI_DEVICE_ID_VORTEX_GDTNEWRX2) + return true; + return false; +} + +static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out); +static int gdth_pci_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent); +static void gdth_pci_remove_one(struct pci_dev *pdev); +static void gdth_remove_one(gdth_ha_str *ha); + +/* Vortex only makes RAID controllers. + * We do not really want to specify all 550 ids here, so wildcard match. + */ +static const struct pci_device_id gdthtable[] = { + { PCI_VDEVICE(VORTEX, PCI_ANY_ID) }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC) }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SRC_XSCALE) }, + { } /* terminate list */ +}; +MODULE_DEVICE_TABLE(pci, gdthtable); + +static struct pci_driver gdth_pci_driver = { + .name = "gdth", + .id_table = gdthtable, + .probe = gdth_pci_init_one, + .remove = gdth_pci_remove_one, +}; + +static void gdth_pci_remove_one(struct pci_dev *pdev) +{ + gdth_ha_str *ha = pci_get_drvdata(pdev); + + list_del(&ha->list); + gdth_remove_one(ha); + + pci_disable_device(pdev); +} + +static int gdth_pci_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + u16 vendor = pdev->vendor; + u16 device = pdev->device; + unsigned long base0, base1, base2; + int rc; + gdth_pci_str gdth_pcistr; + gdth_ha_str *ha = NULL; + + TRACE(("gdth_search_dev() cnt %d vendor %x device %x\n", + gdth_ctr_count, vendor, device)); + + memset(&gdth_pcistr, 0, sizeof(gdth_pcistr)); + + if (vendor == PCI_VENDOR_ID_VORTEX && !gdth_search_vortex(device)) + return -ENODEV; + + rc = pci_enable_device(pdev); + if (rc) + return rc; + + if (gdth_ctr_count >= MAXHA) + return -EBUSY; + + /* GDT PCI controller found, resources are already in pdev */ + gdth_pcistr.pdev = pdev; + base0 = pci_resource_flags(pdev, 0); + base1 = pci_resource_flags(pdev, 1); + base2 = pci_resource_flags(pdev, 2); + if (device <= PCI_DEVICE_ID_VORTEX_GDT6000B || /* GDT6000/B */ + device >= PCI_DEVICE_ID_VORTEX_GDT6x17RP) { /* MPR */ + if (!(base0 & IORESOURCE_MEM)) + return -ENODEV; + gdth_pcistr.dpmem = pci_resource_start(pdev, 0); + } else { /* GDT6110, GDT6120, .. */ + if (!(base0 & IORESOURCE_MEM) || + !(base2 & IORESOURCE_MEM) || + !(base1 & IORESOURCE_IO)) + return -ENODEV; + gdth_pcistr.dpmem = pci_resource_start(pdev, 2); + gdth_pcistr.io = pci_resource_start(pdev, 1); + } + TRACE2(("Controller found at %d/%d, irq %d, dpmem 0x%lx\n", + gdth_pcistr.pdev->bus->number, + PCI_SLOT(gdth_pcistr.pdev->devfn), + gdth_pcistr.irq, + gdth_pcistr.dpmem)); + + rc = gdth_pci_probe_one(&gdth_pcistr, &ha); + if (rc) + return rc; + + return 0; +} + +static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr, + gdth_ha_str *ha) +{ + register gdt6_dpram_str __iomem *dp6_ptr; + register gdt6c_dpram_str __iomem *dp6c_ptr; + register gdt6m_dpram_str __iomem *dp6m_ptr; + u32 retries; + u8 prot_ver; + u16 command; + int i, found = FALSE; + + TRACE(("gdth_init_pci()\n")); + + if (pdev->vendor == PCI_VENDOR_ID_INTEL) + ha->oem_id = OEM_ID_INTEL; + else + ha->oem_id = OEM_ID_ICP; + ha->brd_phys = (pdev->bus->number << 8) | (pdev->devfn & 0xf8); + ha->stype = (u32)pdev->device; + ha->irq = pdev->irq; + ha->pdev = pdev; + + if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6000B) { /* GDT6000/B */ + TRACE2(("init_pci() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq)); + ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + /* check and reset interface area */ + dp6_ptr = ha->brd; + writel(DPMEM_MAGIC, &dp6_ptr->u); + if (readl(&dp6_ptr->u) != DPMEM_MAGIC) { + printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n", + pcistr->dpmem); + found = FALSE; + for (i = 0xC8000; i < 0xE8000; i += 0x4000) { + iounmap(ha->brd); + ha->brd = ioremap(i, sizeof(u16)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + if (readw(ha->brd) != 0xffff) { + TRACE2(("init_pci_old() address 0x%x busy\n", i)); + continue; + } + iounmap(ha->brd); + pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i); + ha->brd = ioremap(i, sizeof(gdt6_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + dp6_ptr = ha->brd; + writel(DPMEM_MAGIC, &dp6_ptr->u); + if (readl(&dp6_ptr->u) == DPMEM_MAGIC) { + printk("GDT-PCI: Use free address at 0x%x\n", i); + found = TRUE; + break; + } + } + if (!found) { + printk("GDT-PCI: No free address found!\n"); + iounmap(ha->brd); + return 0; + } + } + memset_io(&dp6_ptr->u, 0, sizeof(dp6_ptr->u)); + if (readl(&dp6_ptr->u) != 0) { + printk("GDT-PCI: Initialization error (DPMEM write error)\n"); + iounmap(ha->brd); + return 0; + } + + /* disable board interrupts, deinit services */ + writeb(0xff, &dp6_ptr->io.irqdel); + writeb(0x00, &dp6_ptr->io.irqen); + writeb(0x00, &dp6_ptr->u.ic.S_Status); + writeb(0x00, &dp6_ptr->u.ic.Cmd_Index); + + writel(pcistr->dpmem, &dp6_ptr->u.ic.S_Info[0]); + writeb(0xff, &dp6_ptr->u.ic.S_Cmd_Indx); + writeb(0, &dp6_ptr->io.event); + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6_ptr->u.ic.S_Status) != 0xff) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error (DEINIT failed)\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + prot_ver = (u8)readl(&dp6_ptr->u.ic.S_Info[0]); + writeb(0, &dp6_ptr->u.ic.S_Status); + writeb(0xff, &dp6_ptr->io.irqdel); + if (prot_ver != PROTOCOL_VERSION) { + printk("GDT-PCI: Illegal protocol version\n"); + iounmap(ha->brd); + return 0; + } + + ha->type = GDT_PCI; + ha->ic_all_size = sizeof(dp6_ptr->u); + + /* special command to controller BIOS */ + writel(0x00, &dp6_ptr->u.ic.S_Info[0]); + writel(0x00, &dp6_ptr->u.ic.S_Info[1]); + writel(0x00, &dp6_ptr->u.ic.S_Info[2]); + writel(0x00, &dp6_ptr->u.ic.S_Info[3]); + writeb(0xfe, &dp6_ptr->u.ic.S_Cmd_Indx); + writeb(0, &dp6_ptr->io.event); + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6_ptr->u.ic.S_Status) != 0xfe) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + writeb(0, &dp6_ptr->u.ic.S_Status); + writeb(0xff, &dp6_ptr->io.irqdel); + + ha->dma64_support = 0; + + } else if (ha->pdev->device <= PCI_DEVICE_ID_VORTEX_GDT6555) { /* GDT6110, ... */ + ha->plx = (gdt6c_plx_regs *)pcistr->io; + TRACE2(("init_pci_new() dpmem %lx irq %d\n", + pcistr->dpmem,ha->irq)); + ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6c_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + iounmap(ha->brd); + return 0; + } + /* check and reset interface area */ + dp6c_ptr = ha->brd; + writel(DPMEM_MAGIC, &dp6c_ptr->u); + if (readl(&dp6c_ptr->u) != DPMEM_MAGIC) { + printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n", + pcistr->dpmem); + found = FALSE; + for (i = 0xC8000; i < 0xE8000; i += 0x4000) { + iounmap(ha->brd); + ha->brd = ioremap(i, sizeof(u16)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + if (readw(ha->brd) != 0xffff) { + TRACE2(("init_pci_plx() address 0x%x busy\n", i)); + continue; + } + iounmap(ha->brd); + pci_write_config_dword(pdev, PCI_BASE_ADDRESS_2, i); + ha->brd = ioremap(i, sizeof(gdt6c_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + dp6c_ptr = ha->brd; + writel(DPMEM_MAGIC, &dp6c_ptr->u); + if (readl(&dp6c_ptr->u) == DPMEM_MAGIC) { + printk("GDT-PCI: Use free address at 0x%x\n", i); + found = TRUE; + break; + } + } + if (!found) { + printk("GDT-PCI: No free address found!\n"); + iounmap(ha->brd); + return 0; + } + } + memset_io(&dp6c_ptr->u, 0, sizeof(dp6c_ptr->u)); + if (readl(&dp6c_ptr->u) != 0) { + printk("GDT-PCI: Initialization error (DPMEM write error)\n"); + iounmap(ha->brd); + return 0; + } + + /* disable board interrupts, deinit services */ + outb(0x00,PTR2USHORT(&ha->plx->control1)); + outb(0xff,PTR2USHORT(&ha->plx->edoor_reg)); + + writeb(0x00, &dp6c_ptr->u.ic.S_Status); + writeb(0x00, &dp6c_ptr->u.ic.Cmd_Index); + + writel(pcistr->dpmem, &dp6c_ptr->u.ic.S_Info[0]); + writeb(0xff, &dp6c_ptr->u.ic.S_Cmd_Indx); + + outb(1,PTR2USHORT(&ha->plx->ldoor_reg)); + + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6c_ptr->u.ic.S_Status) != 0xff) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error (DEINIT failed)\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + prot_ver = (u8)readl(&dp6c_ptr->u.ic.S_Info[0]); + writeb(0, &dp6c_ptr->u.ic.Status); + if (prot_ver != PROTOCOL_VERSION) { + printk("GDT-PCI: Illegal protocol version\n"); + iounmap(ha->brd); + return 0; + } + + ha->type = GDT_PCINEW; + ha->ic_all_size = sizeof(dp6c_ptr->u); + + /* special command to controller BIOS */ + writel(0x00, &dp6c_ptr->u.ic.S_Info[0]); + writel(0x00, &dp6c_ptr->u.ic.S_Info[1]); + writel(0x00, &dp6c_ptr->u.ic.S_Info[2]); + writel(0x00, &dp6c_ptr->u.ic.S_Info[3]); + writeb(0xfe, &dp6c_ptr->u.ic.S_Cmd_Indx); + + outb(1,PTR2USHORT(&ha->plx->ldoor_reg)); + + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6c_ptr->u.ic.S_Status) != 0xfe) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + writeb(0, &dp6c_ptr->u.ic.S_Status); + + ha->dma64_support = 0; + + } else { /* MPR */ + TRACE2(("init_pci_mpr() dpmem %lx irq %d\n",pcistr->dpmem,ha->irq)); + ha->brd = ioremap(pcistr->dpmem, sizeof(gdt6m_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + + /* manipulate config. space to enable DPMEM, start RP controller */ + pci_read_config_word(pdev, PCI_COMMAND, &command); + command |= 6; + pci_write_config_word(pdev, PCI_COMMAND, command); + gdth_delay(1); + + dp6m_ptr = ha->brd; + + /* Ensure that it is safe to access the non HW portions of DPMEM. + * Aditional check needed for Xscale based RAID controllers */ + while( ((int)readb(&dp6m_ptr->i960r.sema0_reg) ) & 3 ) + gdth_delay(1); + + /* check and reset interface area */ + writel(DPMEM_MAGIC, &dp6m_ptr->u); + if (readl(&dp6m_ptr->u) != DPMEM_MAGIC) { + printk("GDT-PCI: Cannot access DPMEM at 0x%lx (shadowed?)\n", + pcistr->dpmem); + found = FALSE; + for (i = 0xC8000; i < 0xE8000; i += 0x4000) { + iounmap(ha->brd); + ha->brd = ioremap(i, sizeof(u16)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + if (readw(ha->brd) != 0xffff) { + TRACE2(("init_pci_mpr() address 0x%x busy\n", i)); + continue; + } + iounmap(ha->brd); + pci_write_config_dword(pdev, PCI_BASE_ADDRESS_0, i); + ha->brd = ioremap(i, sizeof(gdt6m_dpram_str)); + if (ha->brd == NULL) { + printk("GDT-PCI: Initialization error (DPMEM remap error)\n"); + return 0; + } + dp6m_ptr = ha->brd; + writel(DPMEM_MAGIC, &dp6m_ptr->u); + if (readl(&dp6m_ptr->u) == DPMEM_MAGIC) { + printk("GDT-PCI: Use free address at 0x%x\n", i); + found = TRUE; + break; + } + } + if (!found) { + printk("GDT-PCI: No free address found!\n"); + iounmap(ha->brd); + return 0; + } + } + memset_io(&dp6m_ptr->u, 0, sizeof(dp6m_ptr->u)); + + /* disable board interrupts, deinit services */ + writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) | 4, + &dp6m_ptr->i960r.edoor_en_reg); + writeb(0xff, &dp6m_ptr->i960r.edoor_reg); + writeb(0x00, &dp6m_ptr->u.ic.S_Status); + writeb(0x00, &dp6m_ptr->u.ic.Cmd_Index); + + writel(pcistr->dpmem, &dp6m_ptr->u.ic.S_Info[0]); + writeb(0xff, &dp6m_ptr->u.ic.S_Cmd_Indx); + writeb(1, &dp6m_ptr->i960r.ldoor_reg); + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6m_ptr->u.ic.S_Status) != 0xff) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error (DEINIT failed)\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + prot_ver = (u8)readl(&dp6m_ptr->u.ic.S_Info[0]); + writeb(0, &dp6m_ptr->u.ic.S_Status); + if (prot_ver != PROTOCOL_VERSION) { + printk("GDT-PCI: Illegal protocol version\n"); + iounmap(ha->brd); + return 0; + } + + ha->type = GDT_PCIMPR; + ha->ic_all_size = sizeof(dp6m_ptr->u); + + /* special command to controller BIOS */ + writel(0x00, &dp6m_ptr->u.ic.S_Info[0]); + writel(0x00, &dp6m_ptr->u.ic.S_Info[1]); + writel(0x00, &dp6m_ptr->u.ic.S_Info[2]); + writel(0x00, &dp6m_ptr->u.ic.S_Info[3]); + writeb(0xfe, &dp6m_ptr->u.ic.S_Cmd_Indx); + writeb(1, &dp6m_ptr->i960r.ldoor_reg); + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfe) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + writeb(0, &dp6m_ptr->u.ic.S_Status); + + /* read FW version to detect 64-bit DMA support */ + writeb(0xfd, &dp6m_ptr->u.ic.S_Cmd_Indx); + writeb(1, &dp6m_ptr->i960r.ldoor_reg); + retries = INIT_RETRIES; + gdth_delay(20); + while (readb(&dp6m_ptr->u.ic.S_Status) != 0xfd) { + if (--retries == 0) { + printk("GDT-PCI: Initialization error (DEINIT failed)\n"); + iounmap(ha->brd); + return 0; + } + gdth_delay(1); + } + prot_ver = (u8)(readl(&dp6m_ptr->u.ic.S_Info[0]) >> 16); + writeb(0, &dp6m_ptr->u.ic.S_Status); + if (prot_ver < 0x2b) /* FW < x.43: no 64-bit DMA support */ + ha->dma64_support = 0; + else + ha->dma64_support = 1; + } + + return 1; +} + +/* controller protocol functions */ + +static void gdth_enable_int(gdth_ha_str *ha) +{ + unsigned long flags; + gdt6_dpram_str __iomem *dp6_ptr; + gdt6m_dpram_str __iomem *dp6m_ptr; + + TRACE(("gdth_enable_int() hanum %d\n",ha->hanum)); + spin_lock_irqsave(&ha->smp_lock, flags); + + if (ha->type == GDT_PCI) { + dp6_ptr = ha->brd; + writeb(1, &dp6_ptr->io.irqdel); + writeb(0, &dp6_ptr->u.ic.Cmd_Index); + writeb(1, &dp6_ptr->io.irqen); + } else if (ha->type == GDT_PCINEW) { + outb(0xff, PTR2USHORT(&ha->plx->edoor_reg)); + outb(0x03, PTR2USHORT(&ha->plx->control1)); + } else if (ha->type == GDT_PCIMPR) { + dp6m_ptr = ha->brd; + writeb(0xff, &dp6m_ptr->i960r.edoor_reg); + writeb(readb(&dp6m_ptr->i960r.edoor_en_reg) & ~4, + &dp6m_ptr->i960r.edoor_en_reg); + } + spin_unlock_irqrestore(&ha->smp_lock, flags); +} + +/* return IStatus if interrupt was from this card else 0 */ +static u8 gdth_get_status(gdth_ha_str *ha) +{ + u8 IStatus = 0; + + TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count)); + + if (ha->type == GDT_PCI) + IStatus = + readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index); + else if (ha->type == GDT_PCINEW) + IStatus = inb(PTR2USHORT(&ha->plx->edoor_reg)); + else if (ha->type == GDT_PCIMPR) + IStatus = + readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.edoor_reg); + + return IStatus; +} + +static int gdth_test_busy(gdth_ha_str *ha) +{ + register int gdtsema0 = 0; + + TRACE(("gdth_test_busy() hanum %d\n", ha->hanum)); + + if (ha->type == GDT_PCI) + gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0); + else if (ha->type == GDT_PCINEW) + gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg)); + else if (ha->type == GDT_PCIMPR) + gdtsema0 = + (int)readb(&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg); + + return (gdtsema0 & 1); +} + + +static int gdth_get_cmd_index(gdth_ha_str *ha) +{ + int i; + + TRACE(("gdth_get_cmd_index() hanum %d\n", ha->hanum)); + + for (i=0; i<GDTH_MAXCMDS; ++i) { + if (ha->cmd_tab[i].cmnd == UNUSED_CMND) { + ha->cmd_tab[i].cmnd = ha->pccb->RequestBuffer; + ha->cmd_tab[i].service = ha->pccb->Service; + ha->pccb->CommandIndex = (u32)i+2; + return (i+2); + } + } + return 0; +} + + +static void gdth_set_sema0(gdth_ha_str *ha) +{ + TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum)); + + if (ha->type == GDT_PCI) { + writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0); + } else if (ha->type == GDT_PCINEW) { + outb(1, PTR2USHORT(&ha->plx->sema0_reg)); + } else if (ha->type == GDT_PCIMPR) { + writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.sema0_reg); + } +} + + +static void gdth_copy_command(gdth_ha_str *ha) +{ + register gdth_cmd_str *cmd_ptr; + register gdt6m_dpram_str __iomem *dp6m_ptr; + register gdt6c_dpram_str __iomem *dp6c_ptr; + gdt6_dpram_str __iomem *dp6_ptr; + u16 cp_count,dp_offset,cmd_no; + + TRACE(("gdth_copy_command() hanum %d\n", ha->hanum)); + + cp_count = ha->cmd_len; + dp_offset= ha->cmd_offs_dpmem; + cmd_no = ha->cmd_cnt; + cmd_ptr = ha->pccb; + + ++ha->cmd_cnt; + + /* set cpcount dword aligned */ + if (cp_count & 3) + cp_count += (4 - (cp_count & 3)); + + ha->cmd_offs_dpmem += cp_count; + + /* set offset and service, copy command to DPMEM */ + if (ha->type == GDT_PCI) { + dp6_ptr = ha->brd; + writew(dp_offset + DPMEM_COMMAND_OFFSET, + &dp6_ptr->u.ic.comm_queue[cmd_no].offset); + writew((u16)cmd_ptr->Service, + &dp6_ptr->u.ic.comm_queue[cmd_no].serv_id); + memcpy_toio(&dp6_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count); + } else if (ha->type == GDT_PCINEW) { + dp6c_ptr = ha->brd; + writew(dp_offset + DPMEM_COMMAND_OFFSET, + &dp6c_ptr->u.ic.comm_queue[cmd_no].offset); + writew((u16)cmd_ptr->Service, + &dp6c_ptr->u.ic.comm_queue[cmd_no].serv_id); + memcpy_toio(&dp6c_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count); + } else if (ha->type == GDT_PCIMPR) { + dp6m_ptr = ha->brd; + writew(dp_offset + DPMEM_COMMAND_OFFSET, + &dp6m_ptr->u.ic.comm_queue[cmd_no].offset); + writew((u16)cmd_ptr->Service, + &dp6m_ptr->u.ic.comm_queue[cmd_no].serv_id); + memcpy_toio(&dp6m_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count); + } +} + + +static void gdth_release_event(gdth_ha_str *ha) +{ + TRACE(("gdth_release_event() hanum %d\n", ha->hanum)); + +#ifdef GDTH_STATISTICS + { + u32 i,j; + for (i=0,j=0; j<GDTH_MAXCMDS; ++j) { + if (ha->cmd_tab[j].cmnd != UNUSED_CMND) + ++i; + } + if (max_index < i) { + max_index = i; + TRACE3(("GDT: max_index = %d\n",(u16)i)); + } + } +#endif + + if (ha->pccb->OpCode == GDT_INIT) + ha->pccb->Service |= 0x80; + + if (ha->type == GDT_PCI) { + writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event); + } else if (ha->type == GDT_PCINEW) { + outb(1, PTR2USHORT(&ha->plx->ldoor_reg)); + } else if (ha->type == GDT_PCIMPR) { + writeb(1, &((gdt6m_dpram_str __iomem *)ha->brd)->i960r.ldoor_reg); + } +} + +static int gdth_wait(gdth_ha_str *ha, int index, u32 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 */ + + do { + __gdth_interrupt(ha, true, &wait_index); + if (wait_index == index) { + answer_found = TRUE; + break; + } + gdth_delay(1); + } while (--time); + + while (gdth_test_busy(ha)) + gdth_delay(0); + + return (answer_found); +} + + +static int gdth_internal_cmd(gdth_ha_str *ha, u8 service, u16 opcode, + u32 p1, u64 p2, u64 p3) +{ + register gdth_cmd_str *cmd_ptr; + int retries,index; + + TRACE2(("gdth_internal_cmd() service %d opcode %d\n",service,opcode)); + + cmd_ptr = ha->pccb; + memset((char*)cmd_ptr,0,sizeof(gdth_cmd_str)); + + /* make command */ + for (retries = INIT_RETRIES;;) { + cmd_ptr->Service = service; + cmd_ptr->RequestBuffer = INTERNAL_CMND; + if (!(index=gdth_get_cmd_index(ha))) { + TRACE(("GDT: No free command index found\n")); + return 0; + } + gdth_set_sema0(ha); + cmd_ptr->OpCode = opcode; + cmd_ptr->BoardNode = LOCALBOARD; + if (service == CACHESERVICE) { + if (opcode == GDT_IOCTL) { + cmd_ptr->u.ioctl.subfunc = p1; + cmd_ptr->u.ioctl.channel = (u32)p2; + cmd_ptr->u.ioctl.param_size = (u16)p3; + cmd_ptr->u.ioctl.p_param = ha->scratch_phys; + } else { + if (ha->cache_feat & GDT_64BIT) { + cmd_ptr->u.cache64.DeviceNo = (u16)p1; + cmd_ptr->u.cache64.BlockNo = p2; + } else { + cmd_ptr->u.cache.DeviceNo = (u16)p1; + cmd_ptr->u.cache.BlockNo = (u32)p2; + } + } + } else if (service == SCSIRAWSERVICE) { + if (ha->raw_feat & GDT_64BIT) { + cmd_ptr->u.raw64.direction = p1; + cmd_ptr->u.raw64.bus = (u8)p2; + cmd_ptr->u.raw64.target = (u8)p3; + cmd_ptr->u.raw64.lun = (u8)(p3 >> 8); + } else { + cmd_ptr->u.raw.direction = p1; + cmd_ptr->u.raw.bus = (u8)p2; + cmd_ptr->u.raw.target = (u8)p3; + cmd_ptr->u.raw.lun = (u8)(p3 >> 8); + } + } else if (service == SCREENSERVICE) { + if (opcode == GDT_REALTIME) { + *(u32 *)&cmd_ptr->u.screen.su.data[0] = p1; + *(u32 *)&cmd_ptr->u.screen.su.data[4] = (u32)p2; + *(u32 *)&cmd_ptr->u.screen.su.data[8] = (u32)p3; + } + } + ha->cmd_len = sizeof(gdth_cmd_str); + ha->cmd_offs_dpmem = 0; + ha->cmd_cnt = 0; + gdth_copy_command(ha); + gdth_release_event(ha); + gdth_delay(20); + if (!gdth_wait(ha, index, INIT_TIMEOUT)) { + printk("GDT: Initialization error (timeout service %d)\n",service); + return 0; + } + if (ha->status != S_BSY || --retries == 0) + break; + gdth_delay(1); + } + + return (ha->status != S_OK ? 0:1); +} + + +/* search for devices */ + +static int gdth_search_drives(gdth_ha_str *ha) +{ + u16 cdev_cnt, i; + int ok; + u32 bus_no, drv_cnt, drv_no, j; + gdth_getch_str *chn; + gdth_drlist_str *drl; + gdth_iochan_str *ioc; + gdth_raw_iochan_str *iocr; + gdth_arcdl_str *alst; + gdth_alist_str *alst2; + gdth_oem_str_ioctl *oemstr; + + TRACE(("gdth_search_drives() hanum %d\n", ha->hanum)); + ok = 0; + + /* initialize controller services, at first: screen service */ + ha->screen_feat = 0; + if (!force_dma32) { + ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_X_INIT_SCR, 0, 0, 0); + if (ok) + ha->screen_feat = GDT_64BIT; + } + if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC)) + ok = gdth_internal_cmd(ha, SCREENSERVICE, GDT_INIT, 0, 0, 0); + if (!ok) { + printk("GDT-HA %d: Initialization error screen service (code %d)\n", + ha->hanum, ha->status); + return 0; + } + TRACE2(("gdth_search_drives(): SCREENSERVICE initialized\n")); + + /* unfreeze all IOs */ + gdth_internal_cmd(ha, CACHESERVICE, GDT_UNFREEZE_IO, 0, 0, 0); + + /* initialize cache service */ + ha->cache_feat = 0; + if (!force_dma32) { + ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INIT_HOST, LINUX_OS, + 0, 0); + if (ok) + ha->cache_feat = GDT_64BIT; + } + if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC)) + ok = gdth_internal_cmd(ha, CACHESERVICE, GDT_INIT, LINUX_OS, 0, 0); + if (!ok) { + printk("GDT-HA %d: Initialization error cache service (code %d)\n", + ha->hanum, ha->status); + return 0; + } + TRACE2(("gdth_search_drives(): CACHESERVICE initialized\n")); + cdev_cnt = (u16)ha->info; + ha->fw_vers = ha->service; + + /* detect number of buses - try new IOCTL */ + iocr = (gdth_raw_iochan_str *)ha->pscratch; + iocr->hdr.version = 0xffffffff; + iocr->hdr.list_entries = MAXBUS; + iocr->hdr.first_chan = 0; + iocr->hdr.last_chan = MAXBUS-1; + iocr->hdr.list_offset = GDTOFFSOF(gdth_raw_iochan_str, list[0]); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_RAW_DESC, + INVALID_CHANNEL,sizeof(gdth_raw_iochan_str))) { + TRACE2(("IOCHAN_RAW_DESC supported!\n")); + ha->bus_cnt = iocr->hdr.chan_count; + for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) { + if (iocr->list[bus_no].proc_id < MAXID) + ha->bus_id[bus_no] = iocr->list[bus_no].proc_id; + else + ha->bus_id[bus_no] = 0xff; + } + } else { + /* old method */ + chn = (gdth_getch_str *)ha->pscratch; + for (bus_no = 0; bus_no < MAXBUS; ++bus_no) { + chn->channel_no = bus_no; + if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + SCSI_CHAN_CNT | L_CTRL_PATTERN, + IO_CHANNEL | INVALID_CHANNEL, + sizeof(gdth_getch_str))) { + if (bus_no == 0) { + printk("GDT-HA %d: Error detecting channel count (0x%x)\n", + ha->hanum, ha->status); + return 0; + } + break; + } + if (chn->siop_id < MAXID) + ha->bus_id[bus_no] = chn->siop_id; + else + ha->bus_id[bus_no] = 0xff; + } + ha->bus_cnt = (u8)bus_no; + } + TRACE2(("gdth_search_drives() %d channels\n",ha->bus_cnt)); + + /* read cache configuration */ + if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_INFO, + INVALID_CHANNEL,sizeof(gdth_cinfo_str))) { + printk("GDT-HA %d: Initialization error cache service (code %d)\n", + ha->hanum, ha->status); + return 0; + } + ha->cpar = ((gdth_cinfo_str *)ha->pscratch)->cpar; + TRACE2(("gdth_search_drives() cinfo: vs %x sta %d str %d dw %d b %d\n", + ha->cpar.version,ha->cpar.state,ha->cpar.strategy, + ha->cpar.write_back,ha->cpar.block_size)); + + /* read board info and features */ + ha->more_proc = FALSE; + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_INFO, + INVALID_CHANNEL,sizeof(gdth_binfo_str))) { + memcpy(&ha->binfo, (gdth_binfo_str *)ha->pscratch, + sizeof(gdth_binfo_str)); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, BOARD_FEATURES, + INVALID_CHANNEL,sizeof(gdth_bfeat_str))) { + TRACE2(("BOARD_INFO/BOARD_FEATURES supported\n")); + ha->bfeat = *(gdth_bfeat_str *)ha->pscratch; + ha->more_proc = TRUE; + } + } else { + TRACE2(("BOARD_INFO requires firmware >= 1.10/2.08\n")); + strcpy(ha->binfo.type_string, gdth_ctr_name(ha)); + } + TRACE2(("Controller name: %s\n",ha->binfo.type_string)); + + /* read more informations */ + if (ha->more_proc) { + /* physical drives, channel addresses */ + ioc = (gdth_iochan_str *)ha->pscratch; + ioc->hdr.version = 0xffffffff; + ioc->hdr.list_entries = MAXBUS; + ioc->hdr.first_chan = 0; + ioc->hdr.last_chan = MAXBUS-1; + ioc->hdr.list_offset = GDTOFFSOF(gdth_iochan_str, list[0]); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, IOCHAN_DESC, + INVALID_CHANNEL,sizeof(gdth_iochan_str))) { + for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) { + ha->raw[bus_no].address = ioc->list[bus_no].address; + ha->raw[bus_no].local_no = ioc->list[bus_no].local_no; + } + } else { + for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) { + ha->raw[bus_no].address = IO_CHANNEL; + ha->raw[bus_no].local_no = bus_no; + } + } + for (bus_no = 0; bus_no < ha->bus_cnt; ++bus_no) { + chn = (gdth_getch_str *)ha->pscratch; + chn->channel_no = ha->raw[bus_no].local_no; + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + SCSI_CHAN_CNT | L_CTRL_PATTERN, + ha->raw[bus_no].address | INVALID_CHANNEL, + sizeof(gdth_getch_str))) { + ha->raw[bus_no].pdev_cnt = chn->drive_cnt; + TRACE2(("Channel %d: %d phys. drives\n", + bus_no,chn->drive_cnt)); + } + if (ha->raw[bus_no].pdev_cnt > 0) { + drl = (gdth_drlist_str *)ha->pscratch; + drl->sc_no = ha->raw[bus_no].local_no; + drl->sc_cnt = ha->raw[bus_no].pdev_cnt; + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + SCSI_DR_LIST | L_CTRL_PATTERN, + ha->raw[bus_no].address | INVALID_CHANNEL, + sizeof(gdth_drlist_str))) { + for (j = 0; j < ha->raw[bus_no].pdev_cnt; ++j) + ha->raw[bus_no].id_list[j] = drl->sc_list[j]; + } else { + ha->raw[bus_no].pdev_cnt = 0; + } + } + } + + /* logical drives */ + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_CNT, + INVALID_CHANNEL,sizeof(u32))) { + drv_cnt = *(u32 *)ha->pscratch; + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, CACHE_DRV_LIST, + INVALID_CHANNEL,drv_cnt * sizeof(u32))) { + for (j = 0; j < drv_cnt; ++j) { + drv_no = ((u32 *)ha->pscratch)[j]; + if (drv_no < MAX_LDRIVES) { + ha->hdr[drv_no].is_logdrv = TRUE; + TRACE2(("Drive %d is log. drive\n",drv_no)); + } + } + } + alst = (gdth_arcdl_str *)ha->pscratch; + alst->entries_avail = MAX_LDRIVES; + alst->first_entry = 0; + alst->list_offset = GDTOFFSOF(gdth_arcdl_str, list[0]); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + ARRAY_DRV_LIST2 | LA_CTRL_PATTERN, + INVALID_CHANNEL, sizeof(gdth_arcdl_str) + + (alst->entries_avail-1) * sizeof(gdth_alist_str))) { + for (j = 0; j < alst->entries_init; ++j) { + ha->hdr[j].is_arraydrv = alst->list[j].is_arrayd; + ha->hdr[j].is_master = alst->list[j].is_master; + ha->hdr[j].is_parity = alst->list[j].is_parity; + ha->hdr[j].is_hotfix = alst->list[j].is_hotfix; + ha->hdr[j].master_no = alst->list[j].cd_handle; + } + } else if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + ARRAY_DRV_LIST | LA_CTRL_PATTERN, + 0, 35 * sizeof(gdth_alist_str))) { + for (j = 0; j < 35; ++j) { + alst2 = &((gdth_alist_str *)ha->pscratch)[j]; + ha->hdr[j].is_arraydrv = alst2->is_arrayd; + ha->hdr[j].is_master = alst2->is_master; + ha->hdr[j].is_parity = alst2->is_parity; + ha->hdr[j].is_hotfix = alst2->is_hotfix; + ha->hdr[j].master_no = alst2->cd_handle; + } + } + } + } + + /* initialize raw service */ + ha->raw_feat = 0; + if (!force_dma32) { + ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_X_INIT_RAW, 0, 0, 0); + if (ok) + ha->raw_feat = GDT_64BIT; + } + if (force_dma32 || (!ok && ha->status == (u16)S_NOFUNC)) + ok = gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_INIT, 0, 0, 0); + if (!ok) { + printk("GDT-HA %d: Initialization error raw service (code %d)\n", + ha->hanum, ha->status); + return 0; + } + TRACE2(("gdth_search_drives(): RAWSERVICE initialized\n")); + + /* set/get features raw service (scatter/gather) */ + if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_SET_FEAT, SCATTER_GATHER, + 0, 0)) { + TRACE2(("gdth_search_drives(): set features RAWSERVICE OK\n")); + if (gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_GET_FEAT, 0, 0, 0)) { + TRACE2(("gdth_search_dr(): get feat RAWSERVICE %d\n", + ha->info)); + ha->raw_feat |= (u16)ha->info; + } + } + + /* set/get features cache service (equal to raw service) */ + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_SET_FEAT, 0, + SCATTER_GATHER,0)) { + TRACE2(("gdth_search_drives(): set features CACHESERVICE OK\n")); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_GET_FEAT, 0, 0, 0)) { + TRACE2(("gdth_search_dr(): get feat CACHESERV. %d\n", + ha->info)); + ha->cache_feat |= (u16)ha->info; + } + } + + /* reserve drives for raw service */ + if (reserve_mode != 0) { + gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE_ALL, + reserve_mode == 1 ? 1 : 3, 0, 0); + TRACE2(("gdth_search_drives(): RESERVE_ALL code %d\n", + ha->status)); + } + for (i = 0; i < MAX_RES_ARGS; i += 4) { + if (reserve_list[i] == ha->hanum && reserve_list[i+1] < ha->bus_cnt && + reserve_list[i+2] < ha->tid_cnt && reserve_list[i+3] < MAXLUN) { + TRACE2(("gdth_search_drives(): reserve ha %d bus %d id %d lun %d\n", + reserve_list[i], reserve_list[i+1], + reserve_list[i+2], reserve_list[i+3])); + if (!gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESERVE, 0, + reserve_list[i+1], reserve_list[i+2] | + (reserve_list[i+3] << 8))) { + printk("GDT-HA %d: Error raw service (RESERVE, code %d)\n", + ha->hanum, ha->status); + } + } + } + + /* Determine OEM string using IOCTL */ + oemstr = (gdth_oem_str_ioctl *)ha->pscratch; + oemstr->params.ctl_version = 0x01; + oemstr->params.buffer_size = sizeof(oemstr->text); + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_IOCTL, + CACHE_READ_OEM_STRING_RECORD,INVALID_CHANNEL, + sizeof(gdth_oem_str_ioctl))) { + TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD OK\n")); + printk("GDT-HA %d: Vendor: %s Name: %s\n", + ha->hanum, oemstr->text.oem_company_name, ha->binfo.type_string); + /* Save the Host Drive inquiry data */ + strlcpy(ha->oem_name,oemstr->text.scsi_host_drive_inquiry_vendor_id, + sizeof(ha->oem_name)); + } else { + /* Old method, based on PCI ID */ + TRACE2(("gdth_search_drives(): CACHE_READ_OEM_STRING_RECORD failed\n")); + printk("GDT-HA %d: Name: %s\n", + ha->hanum, ha->binfo.type_string); + if (ha->oem_id == OEM_ID_INTEL) + strlcpy(ha->oem_name,"Intel ", sizeof(ha->oem_name)); + else + strlcpy(ha->oem_name,"ICP ", sizeof(ha->oem_name)); + } + + /* scanning for host drives */ + for (i = 0; i < cdev_cnt; ++i) + gdth_analyse_hdrive(ha, i); + + TRACE(("gdth_search_drives() OK\n")); + return 1; +} + +static int gdth_analyse_hdrive(gdth_ha_str *ha, u16 hdrive) +{ + u32 drv_cyls; + int drv_hds, drv_secs; + + TRACE(("gdth_analyse_hdrive() hanum %d drive %d\n", ha->hanum, hdrive)); + if (hdrive >= MAX_HDRIVES) + return 0; + + if (!gdth_internal_cmd(ha, CACHESERVICE, GDT_INFO, hdrive, 0, 0)) + return 0; + ha->hdr[hdrive].present = TRUE; + ha->hdr[hdrive].size = ha->info; + + /* evaluate mapping (sectors per head, heads per cylinder) */ + ha->hdr[hdrive].size &= ~SECS32; + if (ha->info2 == 0) { + gdth_eval_mapping(ha->hdr[hdrive].size,&drv_cyls,&drv_hds,&drv_secs); + } else { + drv_hds = ha->info2 & 0xff; + drv_secs = (ha->info2 >> 8) & 0xff; + drv_cyls = (u32)ha->hdr[hdrive].size / drv_hds / drv_secs; + } + ha->hdr[hdrive].heads = (u8)drv_hds; + ha->hdr[hdrive].secs = (u8)drv_secs; + /* round size */ + ha->hdr[hdrive].size = drv_cyls * drv_hds * drv_secs; + + if (ha->cache_feat & GDT_64BIT) { + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_X_INFO, hdrive, 0, 0) + && ha->info2 != 0) { + ha->hdr[hdrive].size = ((u64)ha->info2 << 32) | ha->info; + } + } + TRACE2(("gdth_search_dr() cdr. %d size %d hds %d scs %d\n", + hdrive,ha->hdr[hdrive].size,drv_hds,drv_secs)); + + /* get informations about device */ + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_DEVTYPE, hdrive, 0, 0)) { + TRACE2(("gdth_search_dr() cache drive %d devtype %d\n", + hdrive,ha->info)); + ha->hdr[hdrive].devtype = (u16)ha->info; + } + + /* cluster info */ + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_CLUST_INFO, hdrive, 0, 0)) { + TRACE2(("gdth_search_dr() cache drive %d cluster info %d\n", + hdrive,ha->info)); + if (!shared_access) + ha->hdr[hdrive].cluster_type = (u8)ha->info; + } + + /* R/W attributes */ + if (gdth_internal_cmd(ha, CACHESERVICE, GDT_RW_ATTRIBS, hdrive, 0, 0)) { + TRACE2(("gdth_search_dr() cache drive %d r/w attrib. %d\n", + hdrive,ha->info)); + ha->hdr[hdrive].rw_attribs = (u8)ha->info; + } + + return 1; +} + + +/* command queueing/sending functions */ + +static void gdth_putq(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 priority) +{ + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + register struct scsi_cmnd *pscp; + register struct scsi_cmnd *nscp; + unsigned long flags; + + TRACE(("gdth_putq() priority %d\n",priority)); + spin_lock_irqsave(&ha->smp_lock, flags); + + if (!cmndinfo->internal_command) + cmndinfo->priority = priority; + + if (ha->req_first==NULL) { + ha->req_first = scp; /* queue was empty */ + scp->SCp.ptr = NULL; + } else { /* queue not empty */ + pscp = ha->req_first; + nscp = (struct scsi_cmnd *)pscp->SCp.ptr; + /* priority: 0-highest,..,0xff-lowest */ + while (nscp && gdth_cmnd_priv(nscp)->priority <= priority) { + pscp = nscp; + nscp = (struct scsi_cmnd *)pscp->SCp.ptr; + } + pscp->SCp.ptr = (char *)scp; + scp->SCp.ptr = (char *)nscp; + } + spin_unlock_irqrestore(&ha->smp_lock, flags); + +#ifdef GDTH_STATISTICS + flags = 0; + for (nscp=ha->req_first; nscp; nscp=(struct scsi_cmnd*)nscp->SCp.ptr) + ++flags; + if (max_rq < flags) { + max_rq = flags; + TRACE3(("GDT: max_rq = %d\n",(u16)max_rq)); + } +#endif +} + +static void gdth_next(gdth_ha_str *ha) +{ + register struct scsi_cmnd *pscp; + register struct scsi_cmnd *nscp; + u8 b, t, l, firsttime; + u8 this_cmd, next_cmd; + unsigned long flags = 0; + int cmd_index; + + TRACE(("gdth_next() hanum %d\n", ha->hanum)); + if (!gdth_polling) + spin_lock_irqsave(&ha->smp_lock, flags); + + ha->cmd_cnt = ha->cmd_offs_dpmem = 0; + this_cmd = firsttime = TRUE; + next_cmd = gdth_polling ? FALSE:TRUE; + cmd_index = 0; + + for (nscp = pscp = ha->req_first; nscp; nscp = (struct scsi_cmnd *)nscp->SCp.ptr) { + struct gdth_cmndinfo *nscp_cmndinfo = gdth_cmnd_priv(nscp); + if (nscp != pscp && nscp != (struct scsi_cmnd *)pscp->SCp.ptr) + pscp = (struct scsi_cmnd *)pscp->SCp.ptr; + if (!nscp_cmndinfo->internal_command) { + b = nscp->device->channel; + t = nscp->device->id; + l = nscp->device->lun; + 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; + } + } else + b = t = l = 0; + + if (firsttime) { + if (gdth_test_busy(ha)) { /* controller busy ? */ + TRACE(("gdth_next() controller %d busy !\n", ha->hanum)); + if (!gdth_polling) { + spin_unlock_irqrestore(&ha->smp_lock, flags); + return; + } + while (gdth_test_busy(ha)) + gdth_delay(1); + } + firsttime = FALSE; + } + + 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)); + /* TEST_UNIT_READY -> set scan mode */ + if ((ha->scan_mode & 0x0f) == 0) { + if (b == 0 && t == 0 && l == 0) { + ha->scan_mode |= 1; + TRACE2(("Scan mode: 0x%x\n", ha->scan_mode)); + } + } else if ((ha->scan_mode & 0x0f) == 1) { + if (b == 0 && ((t == 0 && l == 1) || + (t == 1 && l == 0))) { + 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", + ha->scan_mode)); + } else { + ha->scan_mode &= 0x10; + TRACE2(("Scan mode: 0x%x\n", ha->scan_mode)); + } + } else if (ha->scan_mode == 0x12) { + if (b == ha->bus_cnt && t == ha->tid_cnt-1) { + 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)); + } + } + } + if (b == ha->virt_bus && nscp->cmnd[0] != INQUIRY && + nscp->cmnd[0] != READ_CAPACITY && nscp->cmnd[0] != MODE_SENSE && + (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) { + /* always GDT_CLUST_INFO! */ + nscp_cmndinfo->OpCode = GDT_CLUST_INFO; + } + } + } + + 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_cmndinfo->phase & 0xff) == SCSIRAWSERVICE) { + if (!(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b)))) + this_cmd = FALSE; + next_cmd = FALSE; + } else { + memset((char*)nscp->sense_buffer,0,16); + nscp->sense_buffer[0] = 0x70; + nscp->sense_buffer[2] = NOT_READY; + nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; + else + gdth_scsi_done(nscp); + } + } else if (gdth_cmnd_priv(nscp)->internal_command) { + if (!(cmd_index=gdth_special_cmd(ha, nscp))) + this_cmd = FALSE; + next_cmd = FALSE; + } else if (b != ha->virt_bus) { + if (ha->raw[BUS_L2P(ha,b)].io_cnt[t] >= GDTH_MAX_RAW || + !(cmd_index=gdth_fill_raw_cmd(ha, nscp, BUS_L2P(ha, b)))) + this_cmd = FALSE; + else + ha->raw[BUS_L2P(ha,b)].io_cnt[t]++; + } else if (t >= MAX_HDRIVES || !ha->hdr[t].present || l != 0) { + 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_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; + else + gdth_scsi_done(nscp); + } else { + switch (nscp->cmnd[0]) { + case TEST_UNIT_READY: + case INQUIRY: + case REQUEST_SENSE: + case READ_CAPACITY: + case VERIFY: + case START_STOP: + case MODE_SENSE: + case SERVICE_ACTION_IN_16: + TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0], + nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3], + nscp->cmnd[4],nscp->cmnd[5])); + if (ha->hdr[t].media_changed && nscp->cmnd[0] != INQUIRY) { + /* return UNIT_ATTENTION */ + TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n", + nscp->cmnd[0], t)); + ha->hdr[t].media_changed = FALSE; + memset((char*)nscp->sense_buffer,0,16); + nscp->sense_buffer[0] = 0x70; + nscp->sense_buffer[2] = UNIT_ATTENTION; + nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; + else + gdth_scsi_done(nscp); + } else if (gdth_internal_cache_cmd(ha, nscp)) + gdth_scsi_done(nscp); + break; + + case ALLOW_MEDIUM_REMOVAL: + TRACE(("cache cmd %x/%x/%x/%x/%x/%x\n",nscp->cmnd[0], + nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3], + nscp->cmnd[4],nscp->cmnd[5])); + if ( (nscp->cmnd[4]&1) && !(ha->hdr[t].devtype&1) ) { + TRACE(("Prevent r. nonremov. drive->do nothing\n")); + nscp->result = DID_OK << 16; + nscp->sense_buffer[0] = 0; + if (!nscp_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; + else + gdth_scsi_done(nscp); + } else { + nscp->cmnd[3] = (ha->hdr[t].devtype&1) ? 1:0; + TRACE(("Prevent/allow r. %d rem. drive %d\n", + nscp->cmnd[4],nscp->cmnd[3])); + if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t))) + this_cmd = FALSE; + } + break; + + case RESERVE: + case RELEASE: + TRACE2(("cache cmd %s\n",nscp->cmnd[0] == RESERVE ? + "RESERVE" : "RELEASE")); + if (!(cmd_index=gdth_fill_cache_cmd(ha, nscp, t))) + this_cmd = FALSE; + break; + + case READ_6: + case WRITE_6: + case READ_10: + case WRITE_10: + case READ_16: + case WRITE_16: + if (ha->hdr[t].media_changed) { + /* return UNIT_ATTENTION */ + TRACE2(("cmd 0x%x target %d: UNIT_ATTENTION\n", + nscp->cmnd[0], t)); + ha->hdr[t].media_changed = FALSE; + memset((char*)nscp->sense_buffer,0,16); + nscp->sense_buffer[0] = 0x70; + nscp->sense_buffer[2] = UNIT_ATTENTION; + nscp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + 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))) + this_cmd = FALSE; + break; + + default: + TRACE2(("cache cmd %x/%x/%x/%x/%x/%x unknown\n",nscp->cmnd[0], + nscp->cmnd[1],nscp->cmnd[2],nscp->cmnd[3], + nscp->cmnd[4],nscp->cmnd[5])); + 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_cmndinfo->wait_for_completion) + nscp_cmndinfo->wait_for_completion++; + else + gdth_scsi_done(nscp); + break; + } + } + + if (!this_cmd) + break; + if (nscp == ha->req_first) + ha->req_first = pscp = (struct scsi_cmnd *)nscp->SCp.ptr; + else + pscp->SCp.ptr = nscp->SCp.ptr; + if (!next_cmd) + break; + } + + if (ha->cmd_cnt > 0) { + gdth_release_event(ha); + } + + if (!gdth_polling) + spin_unlock_irqrestore(&ha->smp_lock, flags); + + if (gdth_polling && ha->cmd_cnt > 0) { + if (!gdth_wait(ha, cmd_index, POLL_TIMEOUT)) + printk("GDT-HA %d: Command %d timed out !\n", + 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, struct scsi_cmnd *scp, + char *buffer, u16 count) +{ + u16 cpcount,i, max_sg = scsi_sg_count(scp); + u16 cpsum,cpnow; + struct scatterlist *sl; + char *address; + + cpcount = min_t(u16, count, scsi_bufflen(scp)); + + if (cpcount) { + cpsum=0; + scsi_for_each_sg(scp, sl, max_sg, i) { + unsigned long flags; + cpnow = (u16)sl->length; + TRACE(("copy_internal() now %d sum %d count %d %d\n", + cpnow, cpsum, cpcount, scsi_bufflen(scp))); + if (cpsum+cpnow > cpcount) + cpnow = cpcount - cpsum; + cpsum += cpnow; + 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(sg_page(sl)) + sl->offset; + memcpy(address, buffer, cpnow); + flush_dcache_page(sg_page(sl)); + kunmap_atomic(address); + local_irq_restore(flags); + if (cpsum == cpcount) + break; + buffer += cpnow; + } + } else if (count) { + printk("GDT-HA %d: SCSI command with no buffers but data transfer expected!\n", + ha->hanum); + WARN_ON(1); + } +} + +static int gdth_internal_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp) +{ + u8 t; + gdth_inq_data inq; + 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", + scp->cmnd[0],t)); + + scp->result = DID_OK << 16; + scp->sense_buffer[0] = 0; + + switch (scp->cmnd[0]) { + case TEST_UNIT_READY: + case VERIFY: + case START_STOP: + TRACE2(("Test/Verify/Start hdrive %d\n",t)); + break; + + case INQUIRY: + TRACE2(("Inquiry hdrive %d devtype %d\n", + t,ha->hdr[t].devtype)); + inq.type_qual = (ha->hdr[t].devtype&4) ? TYPE_ROM:TYPE_DISK; + /* you can here set all disks to removable, if you want to do + a flush using the ALLOW_MEDIUM_REMOVAL command */ + inq.modif_rmb = 0x00; + if ((ha->hdr[t].devtype & 1) || + (ha->hdr[t].cluster_type & CLUSTER_DRIVE)) + inq.modif_rmb = 0x80; + inq.version = 2; + inq.resp_aenc = 2; + inq.add_length= 32; + strcpy(inq.vendor,ha->oem_name); + snprintf(inq.product, sizeof(inq.product), "Host Drive #%02d",t); + strcpy(inq.revision," "); + gdth_copy_internal_data(ha, scp, (char*)&inq, sizeof(gdth_inq_data)); + break; + + case REQUEST_SENSE: + TRACE2(("Request sense hdrive %d\n",t)); + sd.errorcode = 0x70; + sd.segno = 0x00; + sd.key = NO_SENSE; + sd.info = 0; + sd.add_length= 0; + gdth_copy_internal_data(ha, scp, (char*)&sd, sizeof(gdth_sense_data)); + break; + + case MODE_SENSE: + TRACE2(("Mode sense hdrive %d\n",t)); + memset((char*)&mpd,0,sizeof(gdth_modep_data)); + mpd.hd.data_length = sizeof(gdth_modep_data); + mpd.hd.dev_par = (ha->hdr[t].devtype&2) ? 0x80:0; + mpd.hd.bd_length = sizeof(mpd.bd); + 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)); + break; + + case READ_CAPACITY: + TRACE2(("Read capacity hdrive %d\n",t)); + if (ha->hdr[t].size > (u64)0xffffffff) + rdc.last_block_no = 0xffffffff; + 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)); + break; + + case SERVICE_ACTION_IN_16: + if ((scp->cmnd[1] & 0x1f) == SAI_READ_CAPACITY_16 && + (ha->cache_feat & GDT_64BIT)) { + gdth_rdcap16_data rdc16; + + TRACE2(("Read capacity (16) hdrive %d\n",t)); + 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)); + } else { + scp->result = DID_ABORT << 16; + } + break; + + default: + TRACE2(("Internal cache cmd 0x%x unknown\n",scp->cmnd[0])); + break; + } + + if (!cmndinfo->wait_for_completion) + cmndinfo->wait_for_completion++; + else + return 1; + + return 0; +} + +static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, + u16 hdrive) +{ + register gdth_cmd_str *cmdp; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + u32 cnt, blockcnt; + u64 no, blockno; + int i, cmd_index, read_write, sgcnt, mode64; + + cmdp = ha->pccb; + TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n", + scp->cmnd[0],scp->cmd_len,hdrive)); + + mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE; + /* test for READ_16, WRITE_16 if !mode64 ? --- + not required, should not occur due to error return on + READ_CAPACITY_16 */ + + cmdp->Service = CACHESERVICE; + cmdp->RequestBuffer = scp; + /* search free command index */ + if (!(cmd_index=gdth_get_cmd_index(ha))) { + TRACE(("GDT: No free command index found\n")); + return 0; + } + /* if it's the first command, set command semaphore */ + if (ha->cmd_cnt == 0) + gdth_set_sema0(ha); + + /* fill command */ + read_write = 0; + 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) + cmdp->OpCode = GDT_RELEASE_DRV; + else if (scp->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { + if (scp->cmnd[4] & 1) /* prevent ? */ + cmdp->OpCode = GDT_MOUNT; + else if (scp->cmnd[3] & 1) /* removable drive ? */ + cmdp->OpCode = GDT_UNMOUNT; + else + cmdp->OpCode = GDT_FLUSH; + } else if (scp->cmnd[0] == WRITE_6 || scp->cmnd[0] == WRITE_10 || + scp->cmnd[0] == WRITE_12 || scp->cmnd[0] == WRITE_16 + ) { + read_write = 1; + if (gdth_write_through || ((ha->hdr[hdrive].rw_attribs & 1) && + (ha->cache_feat & GDT_WR_THROUGH))) + cmdp->OpCode = GDT_WRITE_THR; + else + cmdp->OpCode = GDT_WRITE; + } else { + read_write = 2; + cmdp->OpCode = GDT_READ; + } + + cmdp->BoardNode = LOCALBOARD; + if (mode64) { + cmdp->u.cache64.DeviceNo = hdrive; + cmdp->u.cache64.BlockNo = 1; + cmdp->u.cache64.sg_canz = 0; + } else { + cmdp->u.cache.DeviceNo = hdrive; + cmdp->u.cache.BlockNo = 1; + cmdp->u.cache.sg_canz = 0; + } + + if (read_write) { + if (scp->cmd_len == 16) { + memcpy(&no, &scp->cmnd[2], sizeof(u64)); + blockno = be64_to_cpu(no); + memcpy(&cnt, &scp->cmnd[10], sizeof(u32)); + blockcnt = be32_to_cpu(cnt); + } else if (scp->cmd_len == 10) { + memcpy(&no, &scp->cmnd[2], sizeof(u32)); + blockno = be32_to_cpu(no); + memcpy(&cnt, &scp->cmnd[7], sizeof(u16)); + blockcnt = be16_to_cpu(cnt); + } else { + memcpy(&no, &scp->cmnd[0], sizeof(u32)); + blockno = be32_to_cpu(no) & 0x001fffffUL; + blockcnt= scp->cmnd[4]==0 ? 0x100 : scp->cmnd[4]; + } + if (mode64) { + cmdp->u.cache64.BlockNo = blockno; + cmdp->u.cache64.BlockCnt = blockcnt; + } else { + cmdp->u.cache.BlockNo = (u32)blockno; + cmdp->u.cache.BlockCnt = blockcnt; + } + + if (scsi_bufflen(scp)) { + cmndinfo->dma_dir = (read_write == 1 ? + DMA_TO_DEVICE : DMA_FROM_DEVICE); + sgcnt = dma_map_sg(&ha->pdev->dev, scsi_sglist(scp), + scsi_sg_count(scp), cmndinfo->dma_dir); + if (mode64) { + struct scatterlist *sl; + + cmdp->u.cache64.DestAddr= (u64)-1; + cmdp->u.cache64.sg_canz = sgcnt; + scsi_for_each_sg(scp, sl, sgcnt, i) { + cmdp->u.cache64.sg_lst[i].sg_ptr = sg_dma_address(sl); + 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; + scsi_for_each_sg(scp, sl, sgcnt, i) { + cmdp->u.cache.sg_lst[i].sg_ptr = sg_dma_address(sl); + cmdp->u.cache.sg_lst[i].sg_len = sg_dma_len(sl); + } + } + +#ifdef GDTH_STATISTICS + if (max_sg < (u32)sgcnt) { + max_sg = (u32)sgcnt; + TRACE3(("GDT: max_sg = %d\n",max_sg)); + } +#endif + + } + } + /* evaluate command size, check space */ + if (mode64) { + TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n", + cmdp->u.cache64.DestAddr,cmdp->u.cache64.sg_canz, + cmdp->u.cache64.sg_lst[0].sg_ptr, + cmdp->u.cache64.sg_lst[0].sg_len)); + TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n", + cmdp->OpCode,cmdp->u.cache64.BlockNo,cmdp->u.cache64.BlockCnt)); + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + + (u16)cmdp->u.cache64.sg_canz * sizeof(gdth_sg64_str); + } else { + TRACE(("cache cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n", + cmdp->u.cache.DestAddr,cmdp->u.cache.sg_canz, + cmdp->u.cache.sg_lst[0].sg_ptr, + cmdp->u.cache.sg_lst[0].sg_len)); + TRACE(("cache cmd: cmd %d blockno. %d, blockcnt %d\n", + cmdp->OpCode,cmdp->u.cache.BlockNo,cmdp->u.cache.BlockCnt)); + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + + (u16)cmdp->u.cache.sg_canz * sizeof(gdth_sg_str); + } + if (ha->cmd_len & 3) + ha->cmd_len += (4 - (ha->cmd_len & 3)); + + if (ha->cmd_cnt > 0) { + if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) > + ha->ic_all_size) { + TRACE2(("gdth_fill_cache() DPMEM overflow\n")); + ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND; + return 0; + } + } + + /* copy command */ + gdth_copy_command(ha); + return cmd_index; +} + +static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b) +{ + register gdth_cmd_str *cmdp; + u16 i; + dma_addr_t sense_paddr; + int cmd_index, sgcnt, mode64; + u8 t,l; + struct gdth_cmndinfo *cmndinfo; + + t = scp->device->id; + l = scp->device->lun; + cmdp = ha->pccb; + TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n", + scp->cmnd[0],b,t,l)); + + mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE; + + cmdp->Service = SCSIRAWSERVICE; + cmdp->RequestBuffer = scp; + /* search free command index */ + if (!(cmd_index=gdth_get_cmd_index(ha))) { + TRACE(("GDT: No free command index found\n")); + return 0; + } + /* if it's the first command, set command semaphore */ + if (ha->cmd_cnt == 0) + gdth_set_sema0(ha); + + cmndinfo = gdth_cmnd_priv(scp); + /* fill command */ + if (cmndinfo->OpCode != -1) { + cmdp->OpCode = cmndinfo->OpCode; /* special raw cmd. */ + cmdp->BoardNode = LOCALBOARD; + if (mode64) { + 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 = (cmndinfo->phase >> 8); + TRACE2(("special raw cmd 0x%x param 0x%x\n", + cmdp->OpCode, cmdp->u.raw.direction)); + /* evaluate command size */ + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst); + } + + } else { + sense_paddr = dma_map_single(&ha->pdev->dev, scp->sense_buffer, 16, + DMA_FROM_DEVICE); + + cmndinfo->sense_paddr = sense_paddr; + cmdp->OpCode = GDT_WRITE; /* always */ + cmdp->BoardNode = LOCALBOARD; + if (mode64) { + cmdp->u.raw64.reserved = 0; + cmdp->u.raw64.mdisc_time = 0; + cmdp->u.raw64.mcon_time = 0; + cmdp->u.raw64.clen = scp->cmd_len; + cmdp->u.raw64.target = t; + cmdp->u.raw64.lun = l; + cmdp->u.raw64.bus = b; + cmdp->u.raw64.priority = 0; + cmdp->u.raw64.sdlen = scsi_bufflen(scp); + cmdp->u.raw64.sense_len = 16; + cmdp->u.raw64.sense_data = sense_paddr; + cmdp->u.raw64.direction = + gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN; + memcpy(cmdp->u.raw64.cmd,scp->cmnd,16); + cmdp->u.raw64.sg_ranz = 0; + } else { + cmdp->u.raw.reserved = 0; + cmdp->u.raw.mdisc_time = 0; + cmdp->u.raw.mcon_time = 0; + cmdp->u.raw.clen = scp->cmd_len; + cmdp->u.raw.target = t; + cmdp->u.raw.lun = l; + cmdp->u.raw.bus = b; + cmdp->u.raw.priority = 0; + cmdp->u.raw.link_p = 0; + cmdp->u.raw.sdlen = scsi_bufflen(scp); + cmdp->u.raw.sense_len = 16; + cmdp->u.raw.sense_data = sense_paddr; + cmdp->u.raw.direction = + gdth_direction_tab[scp->cmnd[0]]==DOU ? GDTH_DATA_OUT:GDTH_DATA_IN; + memcpy(cmdp->u.raw.cmd,scp->cmnd,12); + cmdp->u.raw.sg_ranz = 0; + } + + if (scsi_bufflen(scp)) { + cmndinfo->dma_dir = DMA_BIDIRECTIONAL; + sgcnt = dma_map_sg(&ha->pdev->dev, scsi_sglist(scp), + scsi_sg_count(scp), cmndinfo->dma_dir); + if (mode64) { + struct scatterlist *sl; + + cmdp->u.raw64.sdata = (u64)-1; + cmdp->u.raw64.sg_ranz = sgcnt; + scsi_for_each_sg(scp, sl, sgcnt, i) { + cmdp->u.raw64.sg_lst[i].sg_ptr = sg_dma_address(sl); + 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; + scsi_for_each_sg(scp, sl, sgcnt, i) { + cmdp->u.raw.sg_lst[i].sg_ptr = sg_dma_address(sl); + cmdp->u.raw.sg_lst[i].sg_len = sg_dma_len(sl); + } + } + +#ifdef GDTH_STATISTICS + if (max_sg < sgcnt) { + max_sg = sgcnt; + TRACE3(("GDT: max_sg = %d\n",sgcnt)); + } +#endif + + } + if (mode64) { + TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n", + cmdp->u.raw64.sdata,cmdp->u.raw64.sg_ranz, + cmdp->u.raw64.sg_lst[0].sg_ptr, + cmdp->u.raw64.sg_lst[0].sg_len)); + /* evaluate command size */ + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + + (u16)cmdp->u.raw64.sg_ranz * sizeof(gdth_sg64_str); + } else { + TRACE(("raw cmd: addr. %x sganz %x sgptr0 %x sglen0 %x\n", + cmdp->u.raw.sdata,cmdp->u.raw.sg_ranz, + cmdp->u.raw.sg_lst[0].sg_ptr, + cmdp->u.raw.sg_lst[0].sg_len)); + /* evaluate command size */ + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + + (u16)cmdp->u.raw.sg_ranz * sizeof(gdth_sg_str); + } + } + /* check space */ + if (ha->cmd_len & 3) + ha->cmd_len += (4 - (ha->cmd_len & 3)); + + if (ha->cmd_cnt > 0) { + if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) > + ha->ic_all_size) { + TRACE2(("gdth_fill_raw() DPMEM overflow\n")); + ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND; + return 0; + } + } + + /* copy command */ + gdth_copy_command(ha); + return cmd_index; +} + +static int gdth_special_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp) +{ + register gdth_cmd_str *cmdp; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + int cmd_index; + + cmdp= ha->pccb; + TRACE2(("gdth_special_cmd(): ")); + + *cmdp = *cmndinfo->internal_cmd_str; + cmdp->RequestBuffer = scp; + + /* search free command index */ + if (!(cmd_index=gdth_get_cmd_index(ha))) { + TRACE(("GDT: No free command index found\n")); + return 0; + } + + /* if it's the first command, set command semaphore */ + if (ha->cmd_cnt == 0) + gdth_set_sema0(ha); + + /* evaluate command size, check space */ + if (cmdp->OpCode == GDT_IOCTL) { + TRACE2(("IOCTL\n")); + ha->cmd_len = + GDTOFFSOF(gdth_cmd_str,u.ioctl.p_param) + sizeof(u64); + } else if (cmdp->Service == CACHESERVICE) { + TRACE2(("cache command %d\n",cmdp->OpCode)); + if (ha->cache_feat & GDT_64BIT) + ha->cmd_len = + GDTOFFSOF(gdth_cmd_str,u.cache64.sg_lst) + sizeof(gdth_sg64_str); + else + ha->cmd_len = + GDTOFFSOF(gdth_cmd_str,u.cache.sg_lst) + sizeof(gdth_sg_str); + } else if (cmdp->Service == SCSIRAWSERVICE) { + TRACE2(("raw command %d\n",cmdp->OpCode)); + if (ha->raw_feat & GDT_64BIT) + ha->cmd_len = + GDTOFFSOF(gdth_cmd_str,u.raw64.sg_lst) + sizeof(gdth_sg64_str); + else + ha->cmd_len = + GDTOFFSOF(gdth_cmd_str,u.raw.sg_lst) + sizeof(gdth_sg_str); + } + + if (ha->cmd_len & 3) + ha->cmd_len += (4 - (ha->cmd_len & 3)); + + if (ha->cmd_cnt > 0) { + if ((ha->cmd_offs_dpmem + ha->cmd_len + DPMEM_COMMAND_OFFSET) > + ha->ic_all_size) { + TRACE2(("gdth_special_cmd() DPMEM overflow\n")); + ha->cmd_tab[cmd_index-2].cmnd = UNUSED_CMND; + return 0; + } + } + + /* copy command */ + gdth_copy_command(ha); + return cmd_index; +} + + +/* Controller event handling functions */ +static gdth_evt_str *gdth_store_event(gdth_ha_str *ha, u16 source, + u16 idx, gdth_evt_data *evt) +{ + gdth_evt_str *e; + + /* no GDTH_LOCK_HA() ! */ + TRACE2(("gdth_store_event() source %d idx %d\n", source, idx)); + if (source == 0) /* no source -> no event */ + return NULL; + + if (ebuffer[elastidx].event_source == source && + ebuffer[elastidx].event_idx == idx && + ((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 && + !memcmp((char *)&ebuffer[elastidx].event_data.eu, + (char *)&evt->eu, evt->size)) || + (evt->size == 0 && ebuffer[elastidx].event_data.size == 0 && + !strcmp((char *)&ebuffer[elastidx].event_data.event_string, + (char *)&evt->event_string)))) { + e = &ebuffer[elastidx]; + e->last_stamp = (u32)ktime_get_real_seconds(); + ++e->same_count; + } else { + if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */ + ++elastidx; + if (elastidx == MAX_EVENTS) + elastidx = 0; + if (elastidx == eoldidx) { /* reached mark ? */ + ++eoldidx; + if (eoldidx == MAX_EVENTS) + eoldidx = 0; + } + } + e = &ebuffer[elastidx]; + e->event_source = source; + e->event_idx = idx; + e->first_stamp = e->last_stamp = (u32)ktime_get_real_seconds(); + e->same_count = 1; + e->event_data = *evt; + e->application = 0; + } + return e; +} + +static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr) +{ + gdth_evt_str *e; + int eindex; + unsigned long flags; + + TRACE2(("gdth_read_event() handle %d\n", handle)); + spin_lock_irqsave(&ha->smp_lock, flags); + if (handle == -1) + eindex = eoldidx; + else + eindex = handle; + estr->event_source = 0; + + if (eindex < 0 || eindex >= MAX_EVENTS) { + spin_unlock_irqrestore(&ha->smp_lock, flags); + return eindex; + } + e = &ebuffer[eindex]; + if (e->event_source != 0) { + if (eindex != elastidx) { + if (++eindex == MAX_EVENTS) + eindex = 0; + } else { + eindex = -1; + } + memcpy(estr, e, sizeof(gdth_evt_str)); + } + spin_unlock_irqrestore(&ha->smp_lock, flags); + return eindex; +} + +static void gdth_readapp_event(gdth_ha_str *ha, + u8 application, gdth_evt_str *estr) +{ + gdth_evt_str *e; + int eindex; + unsigned long flags; + u8 found = FALSE; + + TRACE2(("gdth_readapp_event() app. %d\n", application)); + spin_lock_irqsave(&ha->smp_lock, flags); + eindex = eoldidx; + for (;;) { + e = &ebuffer[eindex]; + if (e->event_source == 0) + break; + if ((e->application & application) == 0) { + e->application |= application; + found = TRUE; + break; + } + if (eindex == elastidx) + break; + if (++eindex == MAX_EVENTS) + eindex = 0; + } + if (found) + memcpy(estr, e, sizeof(gdth_evt_str)); + else + estr->event_source = 0; + spin_unlock_irqrestore(&ha->smp_lock, flags); +} + +static void gdth_clear_events(void) +{ + TRACE(("gdth_clear_events()")); + + eoldidx = elastidx = 0; + ebuffer[0].event_source = 0; +} + + +/* SCSI interface functions */ + +static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, + int gdth_from_wait, int* pIndex) +{ + gdt6m_dpram_str __iomem *dp6m_ptr = NULL; + gdt6_dpram_str __iomem *dp6_ptr; + struct scsi_cmnd *scp; + int rval, i; + u8 IStatus; + u16 Service; + unsigned long flags = 0; + + TRACE(("gdth_interrupt() IRQ %d\n", ha->irq)); + + /* if polling and not from gdth_wait() -> return */ + if (gdth_polling) { + if (!gdth_from_wait) { + return IRQ_HANDLED; + } + } + + if (!gdth_polling) + spin_lock_irqsave(&ha->smp_lock, flags); + + /* search controller */ + IStatus = gdth_get_status(ha); + if (IStatus == 0) { + /* spurious interrupt */ + if (!gdth_polling) + spin_unlock_irqrestore(&ha->smp_lock, flags); + return IRQ_HANDLED; + } + +#ifdef GDTH_STATISTICS + ++act_ints; +#endif + + if (ha->type == GDT_PCI) { + dp6_ptr = ha->brd; + if (IStatus & 0x80) { /* error flag */ + IStatus &= ~0x80; + ha->status = readw(&dp6_ptr->u.ic.Status); + TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status)); + } else /* no error */ + ha->status = S_OK; + ha->info = readl(&dp6_ptr->u.ic.Info[0]); + ha->service = readw(&dp6_ptr->u.ic.Service); + ha->info2 = readl(&dp6_ptr->u.ic.Info[1]); + + writeb(0xff, &dp6_ptr->io.irqdel); /* acknowledge interrupt */ + writeb(0, &dp6_ptr->u.ic.Cmd_Index);/* reset command index */ + writeb(0, &dp6_ptr->io.Sema1); /* reset status semaphore */ + } else if (ha->type == GDT_PCINEW) { + if (IStatus & 0x80) { /* error flag */ + IStatus &= ~0x80; + ha->status = inw(PTR2USHORT(&ha->plx->status)); + TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status)); + } else + ha->status = S_OK; + ha->info = inl(PTR2USHORT(&ha->plx->info[0])); + ha->service = inw(PTR2USHORT(&ha->plx->service)); + ha->info2 = inl(PTR2USHORT(&ha->plx->info[1])); + + outb(0xff, PTR2USHORT(&ha->plx->edoor_reg)); + outb(0x00, PTR2USHORT(&ha->plx->sema1_reg)); + } else if (ha->type == GDT_PCIMPR) { + dp6m_ptr = ha->brd; + if (IStatus & 0x80) { /* error flag */ + IStatus &= ~0x80; + ha->status = readw(&dp6m_ptr->i960r.status); + TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status)); + } else /* no error */ + ha->status = S_OK; + + ha->info = readl(&dp6m_ptr->i960r.info[0]); + ha->service = readw(&dp6m_ptr->i960r.service); + ha->info2 = readl(&dp6m_ptr->i960r.info[1]); + + /* event string */ + if (IStatus == ASYNCINDEX) { + if (ha->service != SCREENSERVICE && + (ha->fw_vers & 0xff) >= 0x1a) { + ha->dvr.severity = readb + (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.severity); + for (i = 0; i < 256; ++i) { + ha->dvr.event_string[i] = readb + (&((gdt6m_dpram_str __iomem *)ha->brd)->i960r.evt_str[i]); + if (ha->dvr.event_string[i] == 0) + break; + } + } + } + writeb(0xff, &dp6m_ptr->i960r.edoor_reg); + writeb(0, &dp6m_ptr->i960r.sema1_reg); + } else { + TRACE2(("gdth_interrupt() unknown controller type\n")); + if (!gdth_polling) + spin_unlock_irqrestore(&ha->smp_lock, flags); + return IRQ_HANDLED; + } + + TRACE(("gdth_interrupt() index %d stat %d info %d\n", + IStatus,ha->status,ha->info)); + + if (gdth_from_wait) { + *pIndex = (int)IStatus; + } + + if (IStatus == ASYNCINDEX) { + TRACE2(("gdth_interrupt() async. event\n")); + gdth_async_event(ha); + if (!gdth_polling) + spin_unlock_irqrestore(&ha->smp_lock, flags); + gdth_next(ha); + return IRQ_HANDLED; + } + + if (IStatus == SPEZINDEX) { + TRACE2(("Service unknown or not initialized !\n")); + ha->dvr.size = sizeof(ha->dvr.eu.driver); + ha->dvr.eu.driver.ionode = ha->hanum; + gdth_store_event(ha, ES_DRIVER, 4, &ha->dvr); + if (!gdth_polling) + spin_unlock_irqrestore(&ha->smp_lock, flags); + return IRQ_HANDLED; + } + scp = ha->cmd_tab[IStatus-2].cmnd; + Service = ha->cmd_tab[IStatus-2].service; + ha->cmd_tab[IStatus-2].cmnd = UNUSED_CMND; + 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 = ha->hanum; + ha->dvr.eu.driver.index = IStatus; + gdth_store_event(ha, ES_DRIVER, 1, &ha->dvr); + if (!gdth_polling) + 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(&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(&ha->smp_lock, flags); + if (rval == 2) { + gdth_putq(ha, scp, gdth_cmnd_priv(scp)->priority); + } else if (rval == 1) { + gdth_scsi_done(scp); + } + + gdth_next(ha); + 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, u8 index, + struct scsi_cmnd *scp) +{ + gdth_msg_str *msg; + gdth_cmd_str *cmdp; + u8 b, t; + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + + cmdp = ha->pccb; + TRACE(("gdth_sync_event() serv %d status %d\n", + service,ha->status)); + + if (service == SCREENSERVICE) { + msg = ha->pmsg; + TRACE(("len: %d, answer: %d, ext: %d, alen: %d\n", + msg->msg_len,msg->msg_answer,msg->msg_ext,msg->msg_alen)); + if (msg->msg_len > MSGLEN+1) + msg->msg_len = MSGLEN+1; + if (msg->msg_len) + if (!(msg->msg_answer && msg->msg_ext)) { + msg->msg_text[msg->msg_len] = '\0'; + printk("%s",msg->msg_text); + } + + if (msg->msg_ext && !msg->msg_answer) { + while (gdth_test_busy(ha)) + gdth_delay(0); + cmdp->Service = SCREENSERVICE; + cmdp->RequestBuffer = SCREEN_CMND; + gdth_get_cmd_index(ha); + gdth_set_sema0(ha); + cmdp->OpCode = GDT_READ; + cmdp->BoardNode = LOCALBOARD; + cmdp->u.screen.reserved = 0; + cmdp->u.screen.su.msg.msg_handle= msg->msg_handle; + cmdp->u.screen.su.msg.msg_addr = ha->msg_phys; + ha->cmd_offs_dpmem = 0; + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr) + + sizeof(u64); + ha->cmd_cnt = 0; + gdth_copy_command(ha); + gdth_release_event(ha); + return 0; + } + + if (msg->msg_answer && msg->msg_alen) { + /* default answers (getchar() not possible) */ + if (msg->msg_alen == 1) { + msg->msg_alen = 0; + msg->msg_len = 1; + msg->msg_text[0] = 0; + } else { + msg->msg_alen -= 2; + msg->msg_len = 2; + msg->msg_text[0] = 1; + msg->msg_text[1] = 0; + } + msg->msg_ext = 0; + msg->msg_answer = 0; + while (gdth_test_busy(ha)) + gdth_delay(0); + cmdp->Service = SCREENSERVICE; + cmdp->RequestBuffer = SCREEN_CMND; + gdth_get_cmd_index(ha); + gdth_set_sema0(ha); + cmdp->OpCode = GDT_WRITE; + cmdp->BoardNode = LOCALBOARD; + cmdp->u.screen.reserved = 0; + cmdp->u.screen.su.msg.msg_handle= msg->msg_handle; + cmdp->u.screen.su.msg.msg_addr = ha->msg_phys; + ha->cmd_offs_dpmem = 0; + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr) + + sizeof(u64); + ha->cmd_cnt = 0; + gdth_copy_command(ha); + gdth_release_event(ha); + return 0; + } + printk("\n"); + + } else { + b = scp->device->channel; + t = scp->device->id; + 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 (cmndinfo->OpCode == GDT_MOUNT) + cmndinfo->OpCode = GDT_CLUST_INFO; + /* retry */ + return 2; + } + if (scsi_bufflen(scp)) + dma_unmap_sg(&ha->pdev->dev, scsi_sglist(scp), scsi_sg_count(scp), + cmndinfo->dma_dir); + + if (cmndinfo->sense_paddr) + dma_unmap_page(&ha->pdev->dev, cmndinfo->sense_paddr, 16, + DMA_FROM_DEVICE); + + if (ha->status == S_OK) { + cmndinfo->status = S_OK; + cmndinfo->info = ha->info; + if (cmndinfo->OpCode != -1) { + TRACE2(("gdth_sync_event(): special cmd 0x%x OK\n", + cmndinfo->OpCode)); + /* special commands GDT_CLUST_INFO/GDT_MOUNT ? */ + if (cmndinfo->OpCode == GDT_CLUST_INFO) { + ha->hdr[t].cluster_type = (u8)ha->info; + if (!(ha->hdr[t].cluster_type & + CLUSTER_MOUNTED)) { + /* NOT MOUNTED -> MOUNT */ + cmndinfo->OpCode = GDT_MOUNT; + if (ha->hdr[t].cluster_type & + CLUSTER_RESERVED) { + /* cluster drive RESERVED (on the other node) */ + cmndinfo->phase = -2; /* reservation conflict */ + } + } else { + cmndinfo->OpCode = -1; + } + } else { + if (cmndinfo->OpCode == GDT_MOUNT) { + ha->hdr[t].cluster_type |= CLUSTER_MOUNTED; + ha->hdr[t].media_changed = TRUE; + } else if (cmndinfo->OpCode == GDT_UNMOUNT) { + ha->hdr[t].cluster_type &= ~CLUSTER_MOUNTED; + ha->hdr[t].media_changed = TRUE; + } + cmndinfo->OpCode = -1; + } + /* retry */ + cmndinfo->priority = HIGH_PRI; + return 2; + } else { + /* RESERVE/RELEASE ? */ + if (scp->cmnd[0] == RESERVE) { + ha->hdr[t].cluster_type |= CLUSTER_RESERVED; + } else if (scp->cmnd[0] == RELEASE) { + ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED; + } + scp->result = DID_OK << 16; + scp->sense_buffer[0] = 0; + } + } else { + cmndinfo->status = ha->status; + cmndinfo->info = ha->info; + + if (cmndinfo->OpCode != -1) { + TRACE2(("gdth_sync_event(): special cmd 0x%x error 0x%x\n", + cmndinfo->OpCode, ha->status)); + if (cmndinfo->OpCode == GDT_SCAN_START || + cmndinfo->OpCode == GDT_SCAN_END) { + cmndinfo->OpCode = -1; + /* retry */ + cmndinfo->priority = HIGH_PRI; + return 2; + } + memset((char*)scp->sense_buffer,0,16); + scp->sense_buffer[0] = 0x70; + scp->sense_buffer[2] = NOT_READY; + scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + } else if (service == CACHESERVICE) { + if (ha->status == S_CACHE_UNKNOWN && + (ha->hdr[t].cluster_type & + CLUSTER_RESERVE_STATE) == CLUSTER_RESERVE_STATE) { + /* bus reset -> force GDT_CLUST_INFO */ + ha->hdr[t].cluster_type &= ~CLUSTER_RESERVED; + } + memset((char*)scp->sense_buffer,0,16); + if (ha->status == (u16)S_CACHE_RESERV) { + scp->result = (DID_OK << 16) | (RESERVATION_CONFLICT << 1); + } else { + scp->sense_buffer[0] = 0x70; + scp->sense_buffer[2] = NOT_READY; + scp->result = (DID_OK << 16) | (CHECK_CONDITION << 1); + } + 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; + ha->dvr.eu.sync.status = ha->status; + ha->dvr.eu.sync.info = ha->info; + ha->dvr.eu.sync.hostdrive = t; + if (ha->status >= 0x8000) + gdth_store_event(ha, ES_SYNC, 0, &ha->dvr); + else + gdth_store_event(ha, ES_SYNC, service, &ha->dvr); + } + } else { + /* sense buffer filled from controller firmware (DMA) */ + if (ha->status != S_RAW_SCSI || ha->info >= 0x100) { + scp->result = DID_BAD_TARGET << 16; + } else { + scp->result = (DID_OK << 16) | ha->info; + } + } + } + if (!cmndinfo->wait_for_completion) + cmndinfo->wait_for_completion++; + else + return 1; + } + + return 0; +} + +static char *async_cache_tab[] = { +/* 0*/ "\011\000\002\002\002\004\002\006\004" + "GDT HA %u, service %u, async. status %u/%lu unknown", +/* 1*/ "\011\000\002\002\002\004\002\006\004" + "GDT HA %u, service %u, async. status %u/%lu unknown", +/* 2*/ "\005\000\002\006\004" + "GDT HA %u, Host Drive %lu not ready", +/* 3*/ "\005\000\002\006\004" + "GDT HA %u, Host Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced", +/* 4*/ "\005\000\002\006\004" + "GDT HA %u, mirror update on Host Drive %lu failed", +/* 5*/ "\005\000\002\006\004" + "GDT HA %u, Mirror Drive %lu failed", +/* 6*/ "\005\000\002\006\004" + "GDT HA %u, Mirror Drive %lu: REASSIGN not successful and/or data error on reassigned blocks. Drive may crash in the future and should be replaced", +/* 7*/ "\005\000\002\006\004" + "GDT HA %u, Host Drive %lu write protected", +/* 8*/ "\005\000\002\006\004" + "GDT HA %u, media changed in Host Drive %lu", +/* 9*/ "\005\000\002\006\004" + "GDT HA %u, Host Drive %lu is offline", +/*10*/ "\005\000\002\006\004" + "GDT HA %u, media change of Mirror Drive %lu", +/*11*/ "\005\000\002\006\004" + "GDT HA %u, Mirror Drive %lu is write protected", +/*12*/ "\005\000\002\006\004" + "GDT HA %u, general error on Host Drive %lu. Please check the devices of this drive!", +/*13*/ "\007\000\002\006\002\010\002" + "GDT HA %u, Array Drive %u: Cache Drive %u failed", +/*14*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: FAIL state entered", +/*15*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: error", +/*16*/ "\007\000\002\006\002\010\002" + "GDT HA %u, Array Drive %u: failed drive replaced by Cache Drive %u", +/*17*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity build failed", +/*18*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive rebuild failed", +/*19*/ "\005\000\002\010\002" + "GDT HA %u, Test of Hot Fix %u failed", +/*20*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive build finished successfully", +/*21*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive rebuild finished successfully", +/*22*/ "\007\000\002\006\002\010\002" + "GDT HA %u, Array Drive %u: Hot Fix %u activated", +/*23*/ "\005\000\002\006\002" + "GDT HA %u, Host Drive %u: processing of i/o aborted due to serious drive error", +/*24*/ "\005\000\002\010\002" + "GDT HA %u, mirror update on Cache Drive %u completed", +/*25*/ "\005\000\002\010\002" + "GDT HA %u, mirror update on Cache Drive %lu failed", +/*26*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive rebuild started", +/*27*/ "\005\000\002\012\001" + "GDT HA %u, Fault bus %u: SHELF OK detected", +/*28*/ "\005\000\002\012\001" + "GDT HA %u, Fault bus %u: SHELF not OK detected", +/*29*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug started", +/*30*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: new disk detected", +/*31*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: old disk detected", +/*32*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: plugging an active disk is invalid", +/*33*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: invalid device detected", +/*34*/ "\011\000\002\012\001\013\001\006\004" + "GDT HA %u, Fault bus %u, ID %u: insufficient disk capacity (%lu MB required)", +/*35*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: disk write protected", +/*36*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: disk not available", +/*37*/ "\007\000\002\012\001\006\004" + "GDT HA %u, Fault bus %u: swap detected (%lu)", +/*38*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug finished successfully", +/*39*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted due to user Hot Plug", +/*40*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug aborted", +/*41*/ "\007\000\002\012\001\013\001" + "GDT HA %u, Fault bus %u, ID %u: Auto Hot Plug for Hot Fix started", +/*42*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive build started", +/*43*/ "\003\000\002" + "GDT HA %u, DRAM parity error detected", +/*44*/ "\005\000\002\006\002" + "GDT HA %u, Mirror Drive %u: update started", +/*45*/ "\007\000\002\006\002\010\002" + "GDT HA %u, Mirror Drive %u: Hot Fix %u activated", +/*46*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: no matching Pool Hot Fix Drive available", +/*47*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: Pool Hot Fix Drive available", +/*48*/ "\005\000\002\006\002" + "GDT HA %u, Mirror Drive %u: no matching Pool Hot Fix Drive available", +/*49*/ "\005\000\002\006\002" + "GDT HA %u, Mirror Drive %u: Pool Hot Fix Drive available", +/*50*/ "\007\000\002\012\001\013\001" + "GDT HA %u, SCSI bus %u, ID %u: IGNORE_WIDE_RESIDUE message received", +/*51*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: expand started", +/*52*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: expand finished successfully", +/*53*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: expand failed", +/*54*/ "\003\000\002" + "GDT HA %u, CPU temperature critical", +/*55*/ "\003\000\002" + "GDT HA %u, CPU temperature OK", +/*56*/ "\005\000\002\006\004" + "GDT HA %u, Host drive %lu created", +/*57*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: expand restarted", +/*58*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: expand stopped", +/*59*/ "\005\000\002\010\002" + "GDT HA %u, Mirror Drive %u: drive build quited", +/*60*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity build quited", +/*61*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: drive rebuild quited", +/*62*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity verify started", +/*63*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity verify done", +/*64*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity verify failed", +/*65*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity error detected", +/*66*/ "\005\000\002\006\002" + "GDT HA %u, Array Drive %u: parity verify quited", +/*67*/ "\005\000\002\006\002" + "GDT HA %u, Host Drive %u reserved", +/*68*/ "\005\000\002\006\002" + "GDT HA %u, Host Drive %u mounted and released", +/*69*/ "\005\000\002\006\002" + "GDT HA %u, Host Drive %u released", +/*70*/ "\003\000\002" + "GDT HA %u, DRAM error detected and corrected with ECC", +/*71*/ "\003\000\002" + "GDT HA %u, Uncorrectable DRAM error detected with ECC", +/*72*/ "\011\000\002\012\001\013\001\014\001" + "GDT HA %u, SCSI bus %u, ID %u, LUN %u: reassigning block", +/*73*/ "\005\000\002\006\002" + "GDT HA %u, Host drive %u resetted locally", +/*74*/ "\005\000\002\006\002" + "GDT HA %u, Host drive %u resetted remotely", +/*75*/ "\003\000\002" + "GDT HA %u, async. status 75 unknown", +}; + + +static int gdth_async_event(gdth_ha_str *ha) +{ + gdth_cmd_str *cmdp; + + cmdp= ha->pccb; + TRACE2(("gdth_async_event() ha %d serv %d\n", + ha->hanum, ha->service)); + + if (ha->service == SCREENSERVICE) { + if (ha->status == MSG_REQUEST) { + while (gdth_test_busy(ha)) + gdth_delay(0); + cmdp->Service = SCREENSERVICE; + cmdp->RequestBuffer = SCREEN_CMND; + gdth_set_sema0(ha); + cmdp->OpCode = GDT_READ; + cmdp->BoardNode = LOCALBOARD; + cmdp->u.screen.reserved = 0; + cmdp->u.screen.su.msg.msg_handle= MSG_INV_HANDLE; + cmdp->u.screen.su.msg.msg_addr = ha->msg_phys; + ha->cmd_offs_dpmem = 0; + ha->cmd_len = GDTOFFSOF(gdth_cmd_str,u.screen.su.msg.msg_addr) + + sizeof(u64); + ha->cmd_cnt = 0; + gdth_copy_command(ha); + printk("[PCI %d/%d] ",(u16)(ha->brd_phys>>8), + (u16)((ha->brd_phys>>3)&0x1f)); + gdth_release_event(ha); + } + + } else { + if (ha->type == GDT_PCIMPR && + (ha->fw_vers & 0xff) >= 0x1a) { + ha->dvr.size = 0; + ha->dvr.eu.async.ionode = ha->hanum; + ha->dvr.eu.async.status = ha->status; + /* severity and event_string already set! */ + } else { + ha->dvr.size = sizeof(ha->dvr.eu.async); + ha->dvr.eu.async.ionode = ha->hanum; + ha->dvr.eu.async.service = ha->service; + ha->dvr.eu.async.status = ha->status; + ha->dvr.eu.async.info = ha->info; + *(u32 *)ha->dvr.eu.async.scsi_coord = ha->info2; + } + gdth_store_event( ha, ES_ASYNC, ha->service, &ha->dvr ); + gdth_log_event( &ha->dvr, NULL ); + + /* new host drive from expand? */ + if (ha->service == CACHESERVICE && ha->status == 56) { + TRACE2(("gdth_async_event(): new host drive %d created\n", + (u16)ha->info)); + /* gdth_analyse_hdrive(hanum, (u16)ha->info); */ + } + } + return 1; +} + +static void gdth_log_event(gdth_evt_data *dvr, char *buffer) +{ + gdth_stackframe stack; + char *f = NULL; + int i,j; + + TRACE2(("gdth_log_event()\n")); + if (dvr->size == 0) { + if (buffer == NULL) { + printk("Adapter %d: %s\n",dvr->eu.async.ionode,dvr->event_string); + } else { + sprintf(buffer,"Adapter %d: %s\n", + dvr->eu.async.ionode,dvr->event_string); + } + } else if (dvr->eu.async.service == CACHESERVICE && + INDEX_OK(dvr->eu.async.status, async_cache_tab)) { + TRACE2(("GDT: Async. event cache service, event no.: %d\n", + dvr->eu.async.status)); + + f = async_cache_tab[dvr->eu.async.status]; + + /* i: parameter to push, j: stack element to fill */ + for (j=0,i=1; i < f[0]; i+=2) { + switch (f[i+1]) { + case 4: + stack.b[j++] = *(u32*)&dvr->eu.stream[(int)f[i]]; + break; + case 2: + stack.b[j++] = *(u16*)&dvr->eu.stream[(int)f[i]]; + break; + case 1: + stack.b[j++] = *(u8*)&dvr->eu.stream[(int)f[i]]; + break; + default: + break; + } + } + + if (buffer == NULL) { + printk(&f[(int)f[0]],stack); + printk("\n"); + } else { + sprintf(buffer,&f[(int)f[0]],stack); + } + + } else { + if (buffer == NULL) { + printk("GDT HA %u, Unknown async. event service %d event no. %d\n", + dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status); + } else { + sprintf(buffer,"GDT HA %u, Unknown async. event service %d event no. %d", + dvr->eu.async.ionode,dvr->eu.async.service,dvr->eu.async.status); + } + } +} + +#ifdef GDTH_STATISTICS +static u8 gdth_timer_running; + +static void gdth_timeout(struct timer_list *unused) +{ + u32 i; + struct scsi_cmnd *nscp; + gdth_ha_str *ha; + unsigned long flags; + + if(unlikely(list_empty(&gdth_instances))) { + gdth_timer_running = 0; + return; + } + + ha = list_first_entry(&gdth_instances, gdth_ha_str, list); + spin_lock_irqsave(&ha->smp_lock, flags); + + for (act_stats=0,i=0; i<GDTH_MAXCMDS; ++i) + if (ha->cmd_tab[i].cmnd != UNUSED_CMND) + ++act_stats; + + for (act_rq=0, + nscp=ha->req_first; nscp; nscp=(struct scsi_cmnd*)nscp->SCp.ptr) + ++act_rq; + + TRACE2(("gdth_to(): ints %d, ios %d, act_stats %d, act_rq %d\n", + act_ints, act_ios, act_stats, act_rq)); + act_ints = act_ios = 0; + + gdth_timer.expires = jiffies + 30 * HZ; + add_timer(&gdth_timer); + spin_unlock_irqrestore(&ha->smp_lock, flags); +} + +static void gdth_timer_init(void) +{ + if (gdth_timer_running) + return; + gdth_timer_running = 1; + TRACE2(("gdth_detect(): Initializing timer !\n")); + gdth_timer.expires = jiffies + HZ; + add_timer(&gdth_timer); +} +#else +static inline void gdth_timer_init(void) +{ +} +#endif + + +static const char *gdth_ctr_name(gdth_ha_str *ha) +{ + TRACE2(("gdth_ctr_name()\n")); + + if (ha->type == GDT_PCI) { + switch (ha->pdev->device) { + case PCI_DEVICE_ID_VORTEX_GDT60x0: + return("GDT6000/6020/6050"); + case PCI_DEVICE_ID_VORTEX_GDT6000B: + return("GDT6000B/6010"); + } + } + /* new controllers (GDT_PCINEW, GDT_PCIMPR, ..) use board_info IOCTL! */ + + return(""); +} + +static const char *gdth_info(struct Scsi_Host *shp) +{ + gdth_ha_str *ha = shost_priv(shp); + + TRACE2(("gdth_info()\n")); + return ((const char *)ha->binfo.type_string); +} + +static enum blk_eh_timer_return gdth_timed_out(struct scsi_cmnd *scp) +{ + gdth_ha_str *ha = shost_priv(scp->device->host); + struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); + u8 b, t; + unsigned long flags; + enum blk_eh_timer_return retval = BLK_EH_DONE; + + TRACE(("%s() cmd 0x%x\n", scp->cmnd[0], __func__)); + b = scp->device->channel; + t = scp->device->id; + + /* + * We don't really honor the command timeout, but we try to + * honor 6 times of the actual command timeout! So reset the + * timer if this is less than 6th timeout on this command! + */ + if (++cmndinfo->timeout_count < 6) + retval = BLK_EH_RESET_TIMER; + + /* Reset the timeout if it is locked IO */ + spin_lock_irqsave(&ha->smp_lock, flags); + if ((b != ha->virt_bus && ha->raw[BUS_L2P(ha, b)].lock) || + (b == ha->virt_bus && t < MAX_HDRIVES && ha->hdr[t].lock)) { + TRACE2(("%s(): locked IO, reset timeout\n", __func__)); + retval = BLK_EH_RESET_TIMER; + } + spin_unlock_irqrestore(&ha->smp_lock, flags); + + return retval; +} + + +static int gdth_eh_bus_reset(struct scsi_cmnd *scp) +{ + gdth_ha_str *ha = shost_priv(scp->device->host); + int i; + unsigned long flags; + struct scsi_cmnd *cmnd; + u8 b; + + TRACE2(("gdth_eh_bus_reset()\n")); + + b = scp->device->channel; + + /* clear command tab */ + spin_lock_irqsave(&ha->smp_lock, flags); + for (i = 0; i < GDTH_MAXCMDS; ++i) { + cmnd = ha->cmd_tab[i].cmnd; + if (!SPECIAL_SCP(cmnd) && cmnd->device->channel == b) + ha->cmd_tab[i].cmnd = UNUSED_CMND; + } + spin_unlock_irqrestore(&ha->smp_lock, flags); + + if (b == ha->virt_bus) { + /* host drives */ + for (i = 0; i < MAX_HDRIVES; ++i) { + if (ha->hdr[i].present) { + spin_lock_irqsave(&ha->smp_lock, flags); + gdth_polling = TRUE; + while (gdth_test_busy(ha)) + gdth_delay(0); + if (gdth_internal_cmd(ha, CACHESERVICE, + GDT_CLUST_RESET, i, 0, 0)) + ha->hdr[i].cluster_type &= ~CLUSTER_RESERVED; + gdth_polling = FALSE; + spin_unlock_irqrestore(&ha->smp_lock, flags); + } + } + } else { + /* raw devices */ + spin_lock_irqsave(&ha->smp_lock, flags); + for (i = 0; i < MAXID; ++i) + ha->raw[BUS_L2P(ha,b)].io_cnt[i] = 0; + gdth_polling = TRUE; + while (gdth_test_busy(ha)) + gdth_delay(0); + gdth_internal_cmd(ha, SCSIRAWSERVICE, GDT_RESET_BUS, + BUS_L2P(ha,b), 0, 0); + gdth_polling = FALSE; + spin_unlock_irqrestore(&ha->smp_lock, flags); + } + return SUCCESS; +} + +static int gdth_bios_param(struct scsi_device *sdev,struct block_device *bdev,sector_t cap,int *ip) +{ + u8 b, t; + gdth_ha_str *ha = shost_priv(sdev->host); + struct scsi_device *sd; + unsigned capacity; + + sd = sdev; + capacity = cap; + b = sd->channel; + t = sd->id; + TRACE2(("gdth_bios_param() ha %d bus %d target %d\n", ha->hanum, b, t)); + + if (b != ha->virt_bus || ha->hdr[t].heads == 0) { + /* raw device or host drive without mapping information */ + TRACE2(("Evaluate mapping\n")); + gdth_eval_mapping(capacity,&ip[2],&ip[0],&ip[1]); + } else { + ip[0] = ha->hdr[t].heads; + ip[1] = ha->hdr[t].secs; + ip[2] = capacity / ip[0] / ip[1]; + } + + TRACE2(("gdth_bios_param(): %d heads, %d secs, %d cyls\n", + ip[0],ip[1],ip[2])); + return 0; +} + + +static int gdth_queuecommand_lck(struct scsi_cmnd *scp, + void (*done)(struct scsi_cmnd *)) +{ + gdth_ha_str *ha = shost_priv(scp->device->host); + 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; + cmndinfo->timeout_count = 0; + cmndinfo->priority = DEFAULT_PRI; + + return __gdth_queuecommand(ha, scp, cmndinfo); +} + +static DEF_SCSI_QCMD(gdth_queuecommand) + +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 + + gdth_putq(ha, scp, cmndinfo->priority); + gdth_next(ha); + return 0; +} + + +static int gdth_open(struct inode *inode, struct file *filep) +{ + gdth_ha_str *ha; + + mutex_lock(&gdth_mutex); + list_for_each_entry(ha, &gdth_instances, list) { + if (!ha->sdev) + ha->sdev = scsi_get_host_dev(ha->shost); + } + mutex_unlock(&gdth_mutex); + + TRACE(("gdth_open()\n")); + return 0; +} + +static int gdth_close(struct inode *inode, struct file *filep) +{ + TRACE(("gdth_close()\n")); + return 0; +} + +static int ioc_event(void __user *arg) +{ + gdth_ioctl_event evt; + gdth_ha_str *ha; + unsigned long flags; + + if (copy_from_user(&evt, arg, sizeof(gdth_ioctl_event))) + return -EFAULT; + ha = gdth_find_ha(evt.ionode); + if (!ha) + return -EFAULT; + + if (evt.erase == 0xff) { + if (evt.event.event_source == ES_TEST) + evt.event.event_data.size=sizeof(evt.event.event_data.eu.test); + else if (evt.event.event_source == ES_DRIVER) + evt.event.event_data.size=sizeof(evt.event.event_data.eu.driver); + else if (evt.event.event_source == ES_SYNC) + evt.event.event_data.size=sizeof(evt.event.event_data.eu.sync); + else + evt.event.event_data.size=sizeof(evt.event.event_data.eu.async); + spin_lock_irqsave(&ha->smp_lock, flags); + gdth_store_event(ha, evt.event.event_source, evt.event.event_idx, + &evt.event.event_data); + spin_unlock_irqrestore(&ha->smp_lock, flags); + } else if (evt.erase == 0xfe) { + gdth_clear_events(); + } else if (evt.erase == 0) { + evt.handle = gdth_read_event(ha, evt.handle, &evt.event); + } else { + gdth_readapp_event(ha, evt.erase, &evt.event); + } + if (copy_to_user(arg, &evt, sizeof(gdth_ioctl_event))) + return -EFAULT; + return 0; +} + +static int ioc_lockdrv(void __user *arg) +{ + gdth_ioctl_lockdrv ldrv; + u8 i, j; + unsigned long flags; + gdth_ha_str *ha; + + if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv))) + return -EFAULT; + 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) + continue; + if (ldrv.lock) { + spin_lock_irqsave(&ha->smp_lock, flags); + ha->hdr[j].lock = 1; + spin_unlock_irqrestore(&ha->smp_lock, flags); + gdth_wait_completion(ha, ha->bus_cnt, j); + } else { + spin_lock_irqsave(&ha->smp_lock, flags); + ha->hdr[j].lock = 0; + spin_unlock_irqrestore(&ha->smp_lock, flags); + gdth_next(ha); + } + } + return 0; +} + +static int ioc_resetdrv(void __user *arg, char *cmnd) +{ + gdth_ioctl_reset res; + gdth_cmd_str cmd; + gdth_ha_str *ha; + int rval; + + if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) || + res.number >= MAX_HDRIVES) + return -EFAULT; + ha = gdth_find_ha(res.ionode); + if (!ha) + return -EFAULT; + + if (!ha->hdr[res.number].present) + return 0; + memset(&cmd, 0, sizeof(gdth_cmd_str)); + cmd.Service = CACHESERVICE; + cmd.OpCode = GDT_CLUST_RESET; + if (ha->cache_feat & GDT_64BIT) + cmd.u.cache64.DeviceNo = res.number; + else + cmd.u.cache.DeviceNo = res.number; + + rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL); + if (rval < 0) + return rval; + res.status = rval; + + if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset))) + return -EFAULT; + return 0; +} + +static void gdth_ioc_cacheservice(gdth_ha_str *ha, gdth_ioctl_general *gen, + u64 paddr) +{ + if (ha->cache_feat & GDT_64BIT) { + /* copy elements from 32-bit IOCTL structure */ + gen->command.u.cache64.BlockCnt = gen->command.u.cache.BlockCnt; + gen->command.u.cache64.BlockNo = gen->command.u.cache.BlockNo; + gen->command.u.cache64.DeviceNo = gen->command.u.cache.DeviceNo; + + if (ha->cache_feat & SCATTER_GATHER) { + gen->command.u.cache64.DestAddr = (u64)-1; + gen->command.u.cache64.sg_canz = 1; + gen->command.u.cache64.sg_lst[0].sg_ptr = paddr; + gen->command.u.cache64.sg_lst[0].sg_len = gen->data_len; + gen->command.u.cache64.sg_lst[1].sg_len = 0; + } else { + gen->command.u.cache64.DestAddr = paddr; + gen->command.u.cache64.sg_canz = 0; + } + } else { + if (ha->cache_feat & SCATTER_GATHER) { + gen->command.u.cache.DestAddr = 0xffffffff; + gen->command.u.cache.sg_canz = 1; + gen->command.u.cache.sg_lst[0].sg_ptr = (u32)paddr; + gen->command.u.cache.sg_lst[0].sg_len = gen->data_len; + gen->command.u.cache.sg_lst[1].sg_len = 0; + } else { + gen->command.u.cache.DestAddr = paddr; + gen->command.u.cache.sg_canz = 0; + } + } +} + +static void gdth_ioc_scsiraw(gdth_ha_str *ha, gdth_ioctl_general *gen, + u64 paddr) +{ + if (ha->raw_feat & GDT_64BIT) { + /* copy elements from 32-bit IOCTL structure */ + char cmd[16]; + + gen->command.u.raw64.sense_len = gen->command.u.raw.sense_len; + gen->command.u.raw64.bus = gen->command.u.raw.bus; + gen->command.u.raw64.lun = gen->command.u.raw.lun; + gen->command.u.raw64.target = gen->command.u.raw.target; + memcpy(cmd, gen->command.u.raw.cmd, 16); + memcpy(gen->command.u.raw64.cmd, cmd, 16); + gen->command.u.raw64.clen = gen->command.u.raw.clen; + gen->command.u.raw64.sdlen = gen->command.u.raw.sdlen; + gen->command.u.raw64.direction = gen->command.u.raw.direction; + + /* addresses */ + if (ha->raw_feat & SCATTER_GATHER) { + gen->command.u.raw64.sdata = (u64)-1; + gen->command.u.raw64.sg_ranz = 1; + gen->command.u.raw64.sg_lst[0].sg_ptr = paddr; + gen->command.u.raw64.sg_lst[0].sg_len = gen->data_len; + gen->command.u.raw64.sg_lst[1].sg_len = 0; + } else { + gen->command.u.raw64.sdata = paddr; + gen->command.u.raw64.sg_ranz = 0; + } + + gen->command.u.raw64.sense_data = paddr + gen->data_len; + } else { + if (ha->raw_feat & SCATTER_GATHER) { + gen->command.u.raw.sdata = 0xffffffff; + gen->command.u.raw.sg_ranz = 1; + gen->command.u.raw.sg_lst[0].sg_ptr = (u32)paddr; + gen->command.u.raw.sg_lst[0].sg_len = gen->data_len; + gen->command.u.raw.sg_lst[1].sg_len = 0; + } else { + gen->command.u.raw.sdata = paddr; + gen->command.u.raw.sg_ranz = 0; + } + + gen->command.u.raw.sense_data = (u32)paddr + gen->data_len; + } +} + +static int ioc_general(void __user *arg, char *cmnd) +{ + gdth_ioctl_general gen; + gdth_ha_str *ha; + char *buf = NULL; + dma_addr_t paddr; + int rval; + + if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general))) + return -EFAULT; + ha = gdth_find_ha(gen.ionode); + if (!ha) + return -EFAULT; + + if (gen.data_len > INT_MAX) + return -EINVAL; + if (gen.sense_len > INT_MAX) + return -EINVAL; + if (gen.data_len + gen.sense_len > INT_MAX) + return -EINVAL; + + if (gen.data_len + gen.sense_len > 0) { + buf = dma_alloc_coherent(&ha->pdev->dev, + gen.data_len + gen.sense_len, &paddr, + GFP_KERNEL); + if (!buf) + return -EFAULT; + + rval = -EFAULT; + if (copy_from_user(buf, arg + sizeof(gdth_ioctl_general), + gen.data_len + gen.sense_len)) + goto out_free_buf; + + if (gen.command.OpCode == GDT_IOCTL) + gen.command.u.ioctl.p_param = paddr; + else if (gen.command.Service == CACHESERVICE) + gdth_ioc_cacheservice(ha, &gen, paddr); + else if (gen.command.Service == SCSIRAWSERVICE) + gdth_ioc_scsiraw(ha, &gen, paddr); + else + goto out_free_buf; + } + + rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, + &gen.info); + if (rval < 0) + goto out_free_buf; + gen.status = rval; + + rval = -EFAULT; + if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf, + gen.data_len + gen.sense_len)) + goto out_free_buf; + if (copy_to_user(arg, &gen, + sizeof(gdth_ioctl_general) - sizeof(gdth_cmd_str))) + goto out_free_buf; + + rval = 0; +out_free_buf: + if (buf) + dma_free_coherent(&ha->pdev->dev, gen.data_len + gen.sense_len, + buf, paddr); + return rval; +} + +static int ioc_hdrlist(void __user *arg, char *cmnd) +{ + gdth_ioctl_rescan *rsc; + gdth_cmd_str *cmd; + gdth_ha_str *ha; + u8 i; + int rc = -ENOMEM; + u32 cluster_type = 0; + + rsc = kmalloc(sizeof(*rsc), GFP_KERNEL); + cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); + if (!rsc || !cmd) + goto free_fail; + + if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) || + (NULL == (ha = gdth_find_ha(rsc->ionode)))) { + rc = -EFAULT; + goto free_fail; + } + memset(cmd, 0, sizeof(gdth_cmd_str)); + + for (i = 0; i < MAX_HDRIVES; ++i) { + if (!ha->hdr[i].present) { + rsc->hdr_list[i].bus = 0xff; + continue; + } + rsc->hdr_list[i].bus = ha->virt_bus; + rsc->hdr_list[i].target = i; + rsc->hdr_list[i].lun = 0; + rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type; + if (ha->hdr[i].cluster_type & CLUSTER_DRIVE) { + cmd->Service = CACHESERVICE; + cmd->OpCode = GDT_CLUST_INFO; + if (ha->cache_feat & GDT_64BIT) + cmd->u.cache64.DeviceNo = i; + else + cmd->u.cache.DeviceNo = i; + if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK) + rsc->hdr_list[i].cluster_type = cluster_type; + } + } + + if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan))) + rc = -EFAULT; + else + rc = 0; + +free_fail: + kfree(rsc); + kfree(cmd); + return rc; +} + +static int ioc_rescan(void __user *arg, char *cmnd) +{ + gdth_ioctl_rescan *rsc; + gdth_cmd_str *cmd; + u16 i, status, hdr_cnt; + u32 info; + int cyls, hds, secs; + int rc = -ENOMEM; + unsigned long flags; + gdth_ha_str *ha; + + rsc = kmalloc(sizeof(*rsc), GFP_KERNEL); + cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd || !rsc) + goto free_fail; + + if (copy_from_user(rsc, arg, sizeof(gdth_ioctl_rescan)) || + (NULL == (ha = gdth_find_ha(rsc->ionode)))) { + rc = -EFAULT; + goto free_fail; + } + memset(cmd, 0, sizeof(gdth_cmd_str)); + + if (rsc->flag == 0) { + /* old method: re-init. cache service */ + cmd->Service = CACHESERVICE; + if (ha->cache_feat & GDT_64BIT) { + cmd->OpCode = GDT_X_INIT_HOST; + cmd->u.cache64.DeviceNo = LINUX_OS; + } else { + cmd->OpCode = GDT_INIT; + cmd->u.cache.DeviceNo = LINUX_OS; + } + + status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info); + i = 0; + hdr_cnt = (status == S_OK ? (u16)info : 0); + } else { + i = rsc->hdr_no; + hdr_cnt = i + 1; + } + + for (; i < hdr_cnt && i < MAX_HDRIVES; ++i) { + cmd->Service = CACHESERVICE; + cmd->OpCode = GDT_INFO; + if (ha->cache_feat & GDT_64BIT) + cmd->u.cache64.DeviceNo = i; + else + cmd->u.cache.DeviceNo = i; + + status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info); + + spin_lock_irqsave(&ha->smp_lock, flags); + rsc->hdr_list[i].bus = ha->virt_bus; + rsc->hdr_list[i].target = i; + rsc->hdr_list[i].lun = 0; + if (status != S_OK) { + ha->hdr[i].present = FALSE; + } else { + ha->hdr[i].present = TRUE; + ha->hdr[i].size = info; + /* evaluate mapping */ + ha->hdr[i].size &= ~SECS32; + gdth_eval_mapping(ha->hdr[i].size,&cyls,&hds,&secs); + ha->hdr[i].heads = hds; + ha->hdr[i].secs = secs; + /* round size */ + ha->hdr[i].size = cyls * hds * secs; + } + spin_unlock_irqrestore(&ha->smp_lock, flags); + if (status != S_OK) + continue; + + /* extended info, if GDT_64BIT, for drives > 2 TB */ + /* but we need ha->info2, not yet stored in scp->SCp */ + + /* devtype, cluster info, R/W attribs */ + cmd->Service = CACHESERVICE; + cmd->OpCode = GDT_DEVTYPE; + if (ha->cache_feat & GDT_64BIT) + cmd->u.cache64.DeviceNo = i; + else + cmd->u.cache.DeviceNo = i; + + status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info); + + spin_lock_irqsave(&ha->smp_lock, flags); + ha->hdr[i].devtype = (status == S_OK ? (u16)info : 0); + spin_unlock_irqrestore(&ha->smp_lock, flags); + + cmd->Service = CACHESERVICE; + cmd->OpCode = GDT_CLUST_INFO; + if (ha->cache_feat & GDT_64BIT) + cmd->u.cache64.DeviceNo = i; + else + cmd->u.cache.DeviceNo = i; + + status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info); + + spin_lock_irqsave(&ha->smp_lock, flags); + ha->hdr[i].cluster_type = + ((status == S_OK && !shared_access) ? (u16)info : 0); + spin_unlock_irqrestore(&ha->smp_lock, flags); + rsc->hdr_list[i].cluster_type = ha->hdr[i].cluster_type; + + cmd->Service = CACHESERVICE; + cmd->OpCode = GDT_RW_ATTRIBS; + if (ha->cache_feat & GDT_64BIT) + cmd->u.cache64.DeviceNo = i; + else + cmd->u.cache.DeviceNo = i; + + status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info); + + spin_lock_irqsave(&ha->smp_lock, flags); + ha->hdr[i].rw_attribs = (status == S_OK ? (u16)info : 0); + spin_unlock_irqrestore(&ha->smp_lock, flags); + } + + if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan))) + rc = -EFAULT; + else + rc = 0; + +free_fail: + kfree(rsc); + kfree(cmd); + return rc; +} + +static int gdth_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) +{ + gdth_ha_str *ha; + struct scsi_cmnd *scp; + unsigned long flags; + char cmnd[MAX_COMMAND_SIZE]; + void __user *argp = (void __user *)arg; + + memset(cmnd, 0xff, 12); + + TRACE(("gdth_ioctl() cmd 0x%x\n", cmd)); + + switch (cmd) { + case GDTIOCTL_CTRCNT: + { + int cnt = gdth_ctr_count; + if (put_user(cnt, (int __user *)argp)) + return -EFAULT; + break; + } + + case GDTIOCTL_DRVERS: + { + int ver = (GDTH_VERSION<<8) | GDTH_SUBVERSION; + if (put_user(ver, (int __user *)argp)) + return -EFAULT; + break; + } + + case GDTIOCTL_OSVERS: + { + gdth_ioctl_osvers osv; + + osv.version = (u8)(LINUX_VERSION_CODE >> 16); + osv.subversion = (u8)(LINUX_VERSION_CODE >> 8); + osv.revision = (u16)(LINUX_VERSION_CODE & 0xff); + if (copy_to_user(argp, &osv, sizeof(gdth_ioctl_osvers))) + return -EFAULT; + break; + } + + case GDTIOCTL_CTRTYPE: + { + gdth_ioctl_ctrtype ctrt; + + if (copy_from_user(&ctrt, argp, sizeof(gdth_ioctl_ctrtype)) || + (NULL == (ha = gdth_find_ha(ctrt.ionode)))) + return -EFAULT; + + if (ha->type != GDT_PCIMPR) { + ctrt.type = (u8)((ha->stype<<4) + 6); + } else { + ctrt.type = (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe); + if (ha->stype >= 0x300) + ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device; + else + ctrt.ext_type = 0x6000 | ha->stype; + } + ctrt.device_id = ha->pdev->device; + ctrt.sub_device_id = ha->pdev->subsystem_device; + ctrt.info = ha->brd_phys; + ctrt.oem_id = ha->oem_id; + if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype))) + return -EFAULT; + break; + } + + case GDTIOCTL_GENERAL: + return ioc_general(argp, cmnd); + + case GDTIOCTL_EVENT: + return ioc_event(argp); + + case GDTIOCTL_LOCKDRV: + return ioc_lockdrv(argp); + + case GDTIOCTL_LOCKCHN: + { + gdth_ioctl_lockchn lchn; + u8 i, j; + + if (copy_from_user(&lchn, argp, sizeof(gdth_ioctl_lockchn)) || + (NULL == (ha = gdth_find_ha(lchn.ionode)))) + return -EFAULT; + + i = lchn.channel; + if (i < ha->bus_cnt) { + if (lchn.lock) { + spin_lock_irqsave(&ha->smp_lock, flags); + ha->raw[i].lock = 1; + spin_unlock_irqrestore(&ha->smp_lock, flags); + for (j = 0; j < ha->tid_cnt; ++j) + gdth_wait_completion(ha, i, j); + } else { + spin_lock_irqsave(&ha->smp_lock, flags); + ha->raw[i].lock = 0; + spin_unlock_irqrestore(&ha->smp_lock, flags); + for (j = 0; j < ha->tid_cnt; ++j) + gdth_next(ha); + } + } + break; + } + + case GDTIOCTL_RESCAN: + return ioc_rescan(argp, cmnd); + + case GDTIOCTL_HDRLIST: + return ioc_hdrlist(argp, cmnd); + + case GDTIOCTL_RESET_BUS: + { + gdth_ioctl_reset res; + int rval; + + if (copy_from_user(&res, argp, sizeof(gdth_ioctl_reset)) || + (NULL == (ha = gdth_find_ha(res.ionode)))) + return -EFAULT; + + scp = kzalloc(sizeof(*scp), GFP_KERNEL); + if (!scp) + return -ENOMEM; + scp->device = ha->sdev; + scp->cmd_len = 12; + scp->device->channel = res.number; + rval = gdth_eh_bus_reset(scp); + res.status = (rval == SUCCESS ? S_OK : S_GENERR); + kfree(scp); + + if (copy_to_user(argp, &res, sizeof(gdth_ioctl_reset))) + return -EFAULT; + break; + } + + case GDTIOCTL_RESET_DRV: + return ioc_resetdrv(argp, cmnd); + + default: + break; + } + return 0; +} + +static long gdth_unlocked_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + int ret; + + mutex_lock(&gdth_mutex); + ret = gdth_ioctl(file, cmd, arg); + mutex_unlock(&gdth_mutex); + + return ret; +} + +/* flush routine */ +static void gdth_flush(gdth_ha_str *ha) +{ + int i; + gdth_cmd_str gdtcmd; + char cmnd[MAX_COMMAND_SIZE]; + memset(cmnd, 0xff, MAX_COMMAND_SIZE); + + TRACE2(("gdth_flush() hanum %d\n", ha->hanum)); + + for (i = 0; i < MAX_HDRIVES; ++i) { + if (ha->hdr[i].present) { + gdtcmd.BoardNode = LOCALBOARD; + gdtcmd.Service = CACHESERVICE; + gdtcmd.OpCode = GDT_FLUSH; + if (ha->cache_feat & GDT_64BIT) { + gdtcmd.u.cache64.DeviceNo = i; + gdtcmd.u.cache64.BlockNo = 1; + gdtcmd.u.cache64.sg_canz = 0; + } else { + gdtcmd.u.cache.DeviceNo = i; + gdtcmd.u.cache.BlockNo = 1; + gdtcmd.u.cache.sg_canz = 0; + } + TRACE2(("gdth_flush(): flush ha %d drive %d\n", ha->hanum, i)); + + gdth_execute(ha->shost, &gdtcmd, cmnd, 30, NULL); + } + } +} + +/* configure lun */ +static int gdth_slave_configure(struct scsi_device *sdev) +{ + sdev->skip_ms_page_3f = 1; + sdev->skip_ms_page_8 = 1; + return 0; +} + +static struct scsi_host_template gdth_template = { + .name = "GDT SCSI Disk Array Controller", + .info = gdth_info, + .queuecommand = gdth_queuecommand, + .eh_bus_reset_handler = gdth_eh_bus_reset, + .slave_configure = gdth_slave_configure, + .bios_param = gdth_bios_param, + .show_info = gdth_show_info, + .write_info = gdth_set_info, + .eh_timed_out = gdth_timed_out, + .proc_name = "gdth", + .can_queue = GDTH_MAXCMDS, + .this_id = -1, + .sg_tablesize = GDTH_MAXSG, + .cmd_per_lun = GDTH_MAXC_P_L, + .unchecked_isa_dma = 1, + .no_write_same = 1, +}; + +static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out) +{ + struct Scsi_Host *shp; + gdth_ha_str *ha; + dma_addr_t scratch_dma_handle = 0; + int error, i; + struct pci_dev *pdev = pcistr->pdev; + + *ha_out = NULL; + + shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str)); + if (!shp) + return -ENOMEM; + ha = shost_priv(shp); + + error = -ENODEV; + if (!gdth_init_pci(pdev, pcistr, ha)) + goto out_host_put; + + /* controller found and initialized */ + printk("Configuring GDT-PCI HA at %d/%d IRQ %u\n", + pdev->bus->number, + PCI_SLOT(pdev->devfn), + ha->irq); + + error = request_irq(ha->irq, gdth_interrupt, + IRQF_SHARED, "gdth", ha); + if (error) { + printk("GDT-PCI: Unable to allocate IRQ\n"); + goto out_host_put; + } + + shp->unchecked_isa_dma = 0; + shp->irq = ha->irq; + shp->dma_channel = 0xff; + + ha->hanum = gdth_ctr_count++; + ha->shost = shp; + + ha->pccb = &ha->cmdext; + ha->ccb_phys = 0L; + + error = -ENOMEM; + + ha->pscratch = dma_alloc_coherent(&ha->pdev->dev, GDTH_SCRATCH, + &scratch_dma_handle, GFP_KERNEL); + if (!ha->pscratch) + goto out_free_irq; + ha->scratch_phys = scratch_dma_handle; + + ha->pmsg = dma_alloc_coherent(&ha->pdev->dev, sizeof(gdth_msg_str), + &scratch_dma_handle, GFP_KERNEL); + if (!ha->pmsg) + goto out_free_pscratch; + ha->msg_phys = scratch_dma_handle; + + ha->scratch_busy = FALSE; + ha->req_first = NULL; + ha->tid_cnt = pdev->device >= 0x200 ? MAXID : MAX_HDRIVES; + if (max_ids > 0 && max_ids < ha->tid_cnt) + ha->tid_cnt = max_ids; + for (i = 0; i < GDTH_MAXCMDS; ++i) + ha->cmd_tab[i].cmnd = UNUSED_CMND; + ha->scan_mode = rescan ? 0x10 : 0; + + error = -ENODEV; + if (!gdth_search_drives(ha)) { + printk("GDT-PCI %d: Error during device scan\n", ha->hanum); + goto out_free_pmsg; + } + + if (hdr_channel < 0 || hdr_channel > ha->bus_cnt) + hdr_channel = ha->bus_cnt; + ha->virt_bus = hdr_channel; + + /* 64-bit DMA only supported from FW >= x.43 */ + if (!(ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT) || + !ha->dma64_support) { + if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { + printk(KERN_WARNING "GDT-PCI %d: " + "Unable to set 32-bit DMA\n", ha->hanum); + goto out_free_pmsg; + } + } else { + shp->max_cmd_len = 16; + if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) { + printk("GDT-PCI %d: 64-bit DMA enabled\n", ha->hanum); + } else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { + printk(KERN_WARNING "GDT-PCI %d: " + "Unable to set 64/32-bit DMA\n", ha->hanum); + goto out_free_pmsg; + } + } + + shp->max_id = ha->tid_cnt; + shp->max_lun = MAXLUN; + shp->max_channel = ha->bus_cnt; + + spin_lock_init(&ha->smp_lock); + gdth_enable_int(ha); + + error = scsi_add_host(shp, &pdev->dev); + if (error) + goto out_free_pmsg; + list_add_tail(&ha->list, &gdth_instances); + + pci_set_drvdata(ha->pdev, ha); + gdth_timer_init(); + + scsi_scan_host(shp); + + *ha_out = ha; + + return 0; + + out_free_pmsg: + dma_free_coherent(&ha->pdev->dev, sizeof(gdth_msg_str), + ha->pmsg, ha->msg_phys); + out_free_pscratch: + dma_free_coherent(&ha->pdev->dev, GDTH_SCRATCH, + ha->pscratch, ha->scratch_phys); + out_free_irq: + free_irq(ha->irq, ha); + gdth_ctr_count--; + out_host_put: + scsi_host_put(shp); + return error; +} + +static void gdth_remove_one(gdth_ha_str *ha) +{ + struct Scsi_Host *shp = ha->shost; + + TRACE2(("gdth_remove_one()\n")); + + scsi_remove_host(shp); + + gdth_flush(ha); + + if (ha->sdev) { + scsi_free_host_dev(ha->sdev); + ha->sdev = NULL; + } + + if (shp->irq) + free_irq(shp->irq,ha); + + if (ha->pscratch) + dma_free_coherent(&ha->pdev->dev, GDTH_SCRATCH, + ha->pscratch, ha->scratch_phys); + if (ha->pmsg) + dma_free_coherent(&ha->pdev->dev, sizeof(gdth_msg_str), + ha->pmsg, ha->msg_phys); + if (ha->ccb_phys) + dma_unmap_single(&ha->pdev->dev, ha->ccb_phys, + sizeof(gdth_cmd_str), DMA_BIDIRECTIONAL); + + scsi_host_put(shp); +} + +static int gdth_halt(struct notifier_block *nb, unsigned long event, void *buf) +{ + gdth_ha_str *ha; + + TRACE2(("gdth_halt() event %d\n", (int)event)); + if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) + return NOTIFY_DONE; + + list_for_each_entry(ha, &gdth_instances, list) + gdth_flush(ha); + + return NOTIFY_OK; +} + +static struct notifier_block gdth_notifier = { + gdth_halt, NULL, 0 +}; + +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(); + timer_setup(&gdth_timer, gdth_timeout, 0); + + /* scanning for PCI controllers */ + if (pci_register_driver(&gdth_pci_driver)) { + gdth_ha_str *ha; + + list_for_each_entry(ha, &gdth_instances, list) + gdth_remove_one(ha); + return -ENODEV; + } + + TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count)); + + major = register_chrdev(0,"gdth", &gdth_fops); + register_reboot_notifier(&gdth_notifier); + gdth_polling = FALSE; + return 0; +} + +static void __exit gdth_exit(void) +{ + gdth_ha_str *ha; + + unregister_chrdev(major, "gdth"); + unregister_reboot_notifier(&gdth_notifier); + +#ifdef GDTH_STATISTICS + del_timer_sync(&gdth_timer); +#endif + + pci_unregister_driver(&gdth_pci_driver); + + list_for_each_entry(ha, &gdth_instances, list) + gdth_remove_one(ha); +} + +module_init(gdth_init); +module_exit(gdth_exit); + +#ifndef MODULE +static void __init internal_setup(char *str,int *ints) +{ + int i; + char *cur_str, *argv; + + TRACE2(("internal_setup() str %s ints[0] %d\n", + str ? str:"NULL", ints ? ints[0]:0)); + + /* analyse string */ + argv = str; + while (argv && (cur_str = strchr(argv, ':'))) { + int val = 0, c = *++cur_str; + + if (c == 'n' || c == 'N') + val = 0; + else if (c == 'y' || c == 'Y') + val = 1; + else + val = (int)simple_strtoul(cur_str, NULL, 0); + + if (!strncmp(argv, "disable:", 8)) + disable = val; + else if (!strncmp(argv, "reserve_mode:", 13)) + reserve_mode = val; + else if (!strncmp(argv, "reverse_scan:", 13)) + reverse_scan = val; + else if (!strncmp(argv, "hdr_channel:", 12)) + hdr_channel = val; + else if (!strncmp(argv, "max_ids:", 8)) + max_ids = val; + else if (!strncmp(argv, "rescan:", 7)) + rescan = val; + else if (!strncmp(argv, "shared_access:", 14)) + shared_access = val; + else if (!strncmp(argv, "reserve_list:", 13)) { + reserve_list[0] = val; + for (i = 1; i < MAX_RES_ARGS; i++) { + cur_str = strchr(cur_str, ','); + if (!cur_str) + break; + if (!isdigit((int)*++cur_str)) { + --cur_str; + break; + } + reserve_list[i] = + (int)simple_strtoul(cur_str, NULL, 0); + } + if (!cur_str) + break; + argv = ++cur_str; + continue; + } + + if ((argv = strchr(argv, ','))) + ++argv; + } +} + +static int __init option_setup(char *str) +{ + int ints[MAXHA]; + char *cur = str; + int i = 1; + + TRACE2(("option_setup() str %s\n", str ? str:"NULL")); + + while (cur && isdigit(*cur) && i < MAXHA) { + ints[i++] = simple_strtoul(cur, NULL, 0); + if ((cur = strchr(cur, ',')) != NULL) cur++; + } + + ints[0] = i - 1; + internal_setup(cur, ints); + return 1; +} + +__setup("gdth=", option_setup); +#endif |