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Diffstat (limited to 'drivers/scsi/gdth.c')
| -rw-r--r-- | drivers/scsi/gdth.c | 4322 |
1 files changed, 0 insertions, 4322 deletions
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c deleted file mode 100644 index 5d801388680b..000000000000 --- a/drivers/scsi/gdth.c +++ /dev/null @@ -1,4322 +0,0 @@ -// 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 |