#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/delay.h>
#include <linux/major.h>
#include <linux/fs.h>
MODULE_VERSION("3.6.26");
MODULE_LICENSE("GPL");
-static int cciss_allow_hpsa;
-module_param(cciss_allow_hpsa, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(cciss_allow_hpsa,
- "Prevent cciss driver from accessing hardware known to be "
- " supported by the hpsa driver");
+static DEFINE_MUTEX(cciss_mutex);
+static struct proc_dir_entry *proc_cciss;
#include "cciss_cmd.h"
#include "cciss.h"
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSD, 0x103C, 0x3215},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x3237},
{PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSC, 0x103C, 0x323D},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3250},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3251},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3252},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3253},
- {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3254},
{0,}
};
{0x409D0E11, "Smart Array 6400 EM", &SA5_access},
{0x40910E11, "Smart Array 6i", &SA5_access},
{0x3225103C, "Smart Array P600", &SA5_access},
+ {0x3223103C, "Smart Array P800", &SA5_access},
+ {0x3234103C, "Smart Array P400", &SA5_access},
{0x3235103C, "Smart Array P400i", &SA5_access},
{0x3211103C, "Smart Array E200i", &SA5_access},
{0x3212103C, "Smart Array E200", &SA5_access},
{0x3214103C, "Smart Array E200i", &SA5_access},
{0x3215103C, "Smart Array E200i", &SA5_access},
{0x3237103C, "Smart Array E500", &SA5_access},
-/* controllers below this line are also supported by the hpsa driver. */
-#define HPSA_BOUNDARY 0x3223103C
{0x3223103C, "Smart Array P800", &SA5_access},
{0x3234103C, "Smart Array P400", &SA5_access},
{0x323D103C, "Smart Array P700m", &SA5_access},
- {0x3241103C, "Smart Array P212", &SA5_access},
- {0x3243103C, "Smart Array P410", &SA5_access},
- {0x3245103C, "Smart Array P410i", &SA5_access},
- {0x3247103C, "Smart Array P411", &SA5_access},
- {0x3249103C, "Smart Array P812", &SA5_access},
- {0x324A103C, "Smart Array P712m", &SA5_access},
- {0x324B103C, "Smart Array P711m", &SA5_access},
- {0x3250103C, "Smart Array", &SA5_access},
- {0x3251103C, "Smart Array", &SA5_access},
- {0x3252103C, "Smart Array", &SA5_access},
- {0x3253103C, "Smart Array", &SA5_access},
- {0x3254103C, "Smart Array", &SA5_access},
};
/* How long to wait (in milliseconds) for board to go into simple mode */
/*
* Enqueuing and dequeuing functions for cmdlists.
*/
- static inline void addQ(struct hlist_head *list, CommandList_struct *c)
+ static inline void addQ(struct list_head *list, CommandList_struct *c)
{
- hlist_add_head(&c->list, list);
+ list_add_tail(&c->list, list);
}
static inline void removeQ(CommandList_struct *c)
* them off as 'stale' to prevent the driver from
* falling over.
*/
- if (WARN_ON(hlist_unhashed(&c->list))) {
+ if (WARN_ON(list_empty(&c->list))) {
c->cmd_type = CMD_MSG_STALE;
return;
}
- hlist_del_init(&c->list);
+ list_del_init(&c->list);
}
static void enqueue_cmd_and_start_io(ctlr_info_t *h,
#define ENG_GIG_FACTOR (ENG_GIG/512)
#define ENGAGE_SCSI "engage scsi"
-static struct proc_dir_entry *proc_cciss;
-
static void cciss_seq_show_header(struct seq_file *seq)
{
ctlr_info_t *h = seq->private;
c->cmdindex = i;
- INIT_HLIST_NODE(&c->list);
+ INIT_LIST_HEAD(&c->list);
c->busaddr = (__u32) cmd_dma_handle;
temp64.val = (__u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
}
memset(c->err_info, 0, sizeof(ErrorInfo_struct));
- INIT_HLIST_NODE(&c->list);
+ INIT_LIST_HEAD(&c->list);
c->busaddr = (__u32) cmd_dma_handle;
temp64.val = (__u64) err_dma_handle;
c->ErrDesc.Addr.lower = temp64.val32.lower;
{
int ret;
- lock_kernel();
+ mutex_lock(&cciss_mutex);
ret = cciss_open(bdev, mode);
- unlock_kernel();
+ mutex_unlock(&cciss_mutex);
return ret;
}
ctlr_info_t *h;
drive_info_struct *drv;
- lock_kernel();
+ mutex_lock(&cciss_mutex);
h = get_host(disk);
drv = get_drv(disk);
dev_dbg(&h->pdev->dev, "cciss_release %s\n", disk->disk_name);
drv->usage_count--;
h->usage_count--;
- unlock_kernel();
+ mutex_unlock(&cciss_mutex);
return 0;
}
unsigned cmd, unsigned long arg)
{
int ret;
- lock_kernel();
+ mutex_lock(&cciss_mutex);
ret = cciss_ioctl(bdev, mode, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&cciss_mutex);
return ret;
}
int err;
u32 cp;
+ memset(&arg64, 0, sizeof(arg64));
err = 0;
err |=
copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION)
(void)check_for_unit_attention(h, c);
}
-/*
- * ioctl
- */
-static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+
+static int cciss_getpciinfo(ctlr_info_t *h, void __user *argp)
{
- struct gendisk *disk = bdev->bd_disk;
- ctlr_info_t *h = get_host(disk);
- drive_info_struct *drv = get_drv(disk);
- void __user *argp = (void __user *)arg;
+ cciss_pci_info_struct pciinfo;
- dev_dbg(&h->pdev->dev, "cciss_ioctl: Called with cmd=%x %lx\n",
- cmd, arg);
- switch (cmd) {
- case CCISS_GETPCIINFO:
- {
- cciss_pci_info_struct pciinfo;
-
- if (!arg)
- return -EINVAL;
- pciinfo.domain = pci_domain_nr(h->pdev->bus);
- pciinfo.bus = h->pdev->bus->number;
- pciinfo.dev_fn = h->pdev->devfn;
- pciinfo.board_id = h->board_id;
- if (copy_to_user
- (argp, &pciinfo, sizeof(cciss_pci_info_struct)))
- return -EFAULT;
- return 0;
- }
- case CCISS_GETINTINFO:
- {
- cciss_coalint_struct intinfo;
- if (!arg)
- return -EINVAL;
- intinfo.delay =
- readl(&h->cfgtable->HostWrite.CoalIntDelay);
- intinfo.count =
- readl(&h->cfgtable->HostWrite.CoalIntCount);
- if (copy_to_user
- (argp, &intinfo, sizeof(cciss_coalint_struct)))
- return -EFAULT;
- return 0;
- }
- case CCISS_SETINTINFO:
- {
- cciss_coalint_struct intinfo;
- unsigned long flags;
- int i;
-
- if (!arg)
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (copy_from_user
- (&intinfo, argp, sizeof(cciss_coalint_struct)))
- return -EFAULT;
- if ((intinfo.delay == 0) && (intinfo.count == 0))
- return -EINVAL;
- spin_lock_irqsave(&h->lock, flags);
- /* Update the field, and then ring the doorbell */
- writel(intinfo.delay,
- &(h->cfgtable->HostWrite.CoalIntDelay));
- writel(intinfo.count,
- &(h->cfgtable->HostWrite.CoalIntCount));
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
-
- for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL)
- & CFGTBL_ChangeReq))
- break;
- /* delay and try again */
- udelay(1000);
- }
- spin_unlock_irqrestore(&h->lock, flags);
- if (i >= MAX_IOCTL_CONFIG_WAIT)
- return -EAGAIN;
- return 0;
- }
- case CCISS_GETNODENAME:
- {
- NodeName_type NodeName;
- int i;
-
- if (!arg)
- return -EINVAL;
- for (i = 0; i < 16; i++)
- NodeName[i] =
- readb(&h->cfgtable->ServerName[i]);
- if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
- return -EFAULT;
- return 0;
- }
- case CCISS_SETNODENAME:
- {
- NodeName_type NodeName;
- unsigned long flags;
- int i;
+ if (!argp)
+ return -EINVAL;
+ pciinfo.domain = pci_domain_nr(h->pdev->bus);
+ pciinfo.bus = h->pdev->bus->number;
+ pciinfo.dev_fn = h->pdev->devfn;
+ pciinfo.board_id = h->board_id;
+ if (copy_to_user(argp, &pciinfo, sizeof(cciss_pci_info_struct)))
+ return -EFAULT;
+ return 0;
+}
- if (!arg)
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
+static int cciss_getintinfo(ctlr_info_t *h, void __user *argp)
+{
+ cciss_coalint_struct intinfo;
- if (copy_from_user
- (NodeName, argp, sizeof(NodeName_type)))
- return -EFAULT;
+ if (!argp)
+ return -EINVAL;
+ intinfo.delay = readl(&h->cfgtable->HostWrite.CoalIntDelay);
+ intinfo.count = readl(&h->cfgtable->HostWrite.CoalIntCount);
+ if (copy_to_user
+ (argp, &intinfo, sizeof(cciss_coalint_struct)))
+ return -EFAULT;
+ return 0;
+}
- spin_lock_irqsave(&h->lock, flags);
+static int cciss_setintinfo(ctlr_info_t *h, void __user *argp)
+{
+ cciss_coalint_struct intinfo;
+ unsigned long flags;
+ int i;
- /* Update the field, and then ring the doorbell */
- for (i = 0; i < 16; i++)
- writeb(NodeName[i],
- &h->cfgtable->ServerName[i]);
+ if (!argp)
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (copy_from_user(&intinfo, argp, sizeof(intinfo)))
+ return -EFAULT;
+ if ((intinfo.delay == 0) && (intinfo.count == 0))
+ return -EINVAL;
+ spin_lock_irqsave(&h->lock, flags);
+ /* Update the field, and then ring the doorbell */
+ writel(intinfo.delay, &(h->cfgtable->HostWrite.CoalIntDelay));
+ writel(intinfo.count, &(h->cfgtable->HostWrite.CoalIntCount));
+ writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
- writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
+ for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
+ if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+ break;
+ udelay(1000); /* delay and try again */
+ }
+ spin_unlock_irqrestore(&h->lock, flags);
+ if (i >= MAX_IOCTL_CONFIG_WAIT)
+ return -EAGAIN;
+ return 0;
+}
- for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
- if (!(readl(h->vaddr + SA5_DOORBELL)
- & CFGTBL_ChangeReq))
- break;
- /* delay and try again */
- udelay(1000);
- }
- spin_unlock_irqrestore(&h->lock, flags);
- if (i >= MAX_IOCTL_CONFIG_WAIT)
- return -EAGAIN;
- return 0;
- }
+static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
+{
+ NodeName_type NodeName;
+ int i;
- case CCISS_GETHEARTBEAT:
- {
- Heartbeat_type heartbeat;
-
- if (!arg)
- return -EINVAL;
- heartbeat = readl(&h->cfgtable->HeartBeat);
- if (copy_to_user
- (argp, &heartbeat, sizeof(Heartbeat_type)))
- return -EFAULT;
- return 0;
- }
- case CCISS_GETBUSTYPES:
- {
- BusTypes_type BusTypes;
-
- if (!arg)
- return -EINVAL;
- BusTypes = readl(&h->cfgtable->BusTypes);
- if (copy_to_user
- (argp, &BusTypes, sizeof(BusTypes_type)))
- return -EFAULT;
- return 0;
- }
- case CCISS_GETFIRMVER:
- {
- FirmwareVer_type firmware;
+ if (!argp)
+ return -EINVAL;
+ for (i = 0; i < 16; i++)
+ NodeName[i] = readb(&h->cfgtable->ServerName[i]);
+ if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
+ return -EFAULT;
+ return 0;
+}
- if (!arg)
- return -EINVAL;
- memcpy(firmware, h->firm_ver, 4);
+static int cciss_setnodename(ctlr_info_t *h, void __user *argp)
+{
+ NodeName_type NodeName;
+ unsigned long flags;
+ int i;
- if (copy_to_user
- (argp, firmware, sizeof(FirmwareVer_type)))
- return -EFAULT;
- return 0;
- }
- case CCISS_GETDRIVVER:
- {
- DriverVer_type DriverVer = DRIVER_VERSION;
+ if (!argp)
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (copy_from_user(NodeName, argp, sizeof(NodeName_type)))
+ return -EFAULT;
+ spin_lock_irqsave(&h->lock, flags);
+ /* Update the field, and then ring the doorbell */
+ for (i = 0; i < 16; i++)
+ writeb(NodeName[i], &h->cfgtable->ServerName[i]);
+ writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
+ for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
+ if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+ break;
+ udelay(1000); /* delay and try again */
+ }
+ spin_unlock_irqrestore(&h->lock, flags);
+ if (i >= MAX_IOCTL_CONFIG_WAIT)
+ return -EAGAIN;
+ return 0;
+}
- if (!arg)
- return -EINVAL;
+static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
+{
+ Heartbeat_type heartbeat;
- if (copy_to_user
- (argp, &DriverVer, sizeof(DriverVer_type)))
- return -EFAULT;
- return 0;
- }
+ if (!argp)
+ return -EINVAL;
+ heartbeat = readl(&h->cfgtable->HeartBeat);
+ if (copy_to_user(argp, &heartbeat, sizeof(Heartbeat_type)))
+ return -EFAULT;
+ return 0;
+}
- case CCISS_DEREGDISK:
- case CCISS_REGNEWD:
- case CCISS_REVALIDVOLS:
- return rebuild_lun_table(h, 0, 1);
+static int cciss_getbustypes(ctlr_info_t *h, void __user *argp)
+{
+ BusTypes_type BusTypes;
- case CCISS_GETLUNINFO:{
- LogvolInfo_struct luninfo;
+ if (!argp)
+ return -EINVAL;
+ BusTypes = readl(&h->cfgtable->BusTypes);
+ if (copy_to_user(argp, &BusTypes, sizeof(BusTypes_type)))
+ return -EFAULT;
+ return 0;
+}
- memcpy(&luninfo.LunID, drv->LunID,
- sizeof(luninfo.LunID));
- luninfo.num_opens = drv->usage_count;
- luninfo.num_parts = 0;
- if (copy_to_user(argp, &luninfo,
- sizeof(LogvolInfo_struct)))
- return -EFAULT;
- return 0;
+static int cciss_getfirmver(ctlr_info_t *h, void __user *argp)
+{
+ FirmwareVer_type firmware;
+
+ if (!argp)
+ return -EINVAL;
+ memcpy(firmware, h->firm_ver, 4);
+
+ if (copy_to_user
+ (argp, firmware, sizeof(FirmwareVer_type)))
+ return -EFAULT;
+ return 0;
+}
+
+static int cciss_getdrivver(ctlr_info_t *h, void __user *argp)
+{
+ DriverVer_type DriverVer = DRIVER_VERSION;
+
+ if (!argp)
+ return -EINVAL;
+ if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type)))
+ return -EFAULT;
+ return 0;
+}
+
+static int cciss_getluninfo(ctlr_info_t *h,
+ struct gendisk *disk, void __user *argp)
+{
+ LogvolInfo_struct luninfo;
+ drive_info_struct *drv = get_drv(disk);
+
+ if (!argp)
+ return -EINVAL;
+ memcpy(&luninfo.LunID, drv->LunID, sizeof(luninfo.LunID));
+ luninfo.num_opens = drv->usage_count;
+ luninfo.num_parts = 0;
+ if (copy_to_user(argp, &luninfo, sizeof(LogvolInfo_struct)))
+ return -EFAULT;
+ return 0;
+}
+
+static int cciss_passthru(ctlr_info_t *h, void __user *argp)
+{
+ IOCTL_Command_struct iocommand;
+ CommandList_struct *c;
+ char *buff = NULL;
+ u64bit temp64;
+ DECLARE_COMPLETION_ONSTACK(wait);
+
+ if (!argp)
+ return -EINVAL;
+
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+
+ if (copy_from_user
+ (&iocommand, argp, sizeof(IOCTL_Command_struct)))
+ return -EFAULT;
+ if ((iocommand.buf_size < 1) &&
+ (iocommand.Request.Type.Direction != XFER_NONE)) {
+ return -EINVAL;
+ }
+ if (iocommand.buf_size > 0) {
+ buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
+ if (buff == NULL)
+ return -EFAULT;
+ }
+ if (iocommand.Request.Type.Direction == XFER_WRITE) {
+ /* Copy the data into the buffer we created */
+ if (copy_from_user(buff, iocommand.buf, iocommand.buf_size)) {
+ kfree(buff);
+ return -EFAULT;
}
- case CCISS_PASSTHRU:
- {
- IOCTL_Command_struct iocommand;
- CommandList_struct *c;
- char *buff = NULL;
- u64bit temp64;
- DECLARE_COMPLETION_ONSTACK(wait);
-
- if (!arg)
- return -EINVAL;
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- if (copy_from_user
- (&iocommand, argp, sizeof(IOCTL_Command_struct)))
- return -EFAULT;
- if ((iocommand.buf_size < 1) &&
- (iocommand.Request.Type.Direction != XFER_NONE)) {
- return -EINVAL;
- }
-#if 0 /* 'buf_size' member is 16-bits, and always smaller than kmalloc limit */
- /* Check kmalloc limits */
- if (iocommand.buf_size > 128000)
- return -EINVAL;
-#endif
- if (iocommand.buf_size > 0) {
- buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
- if (buff == NULL)
- return -EFAULT;
- }
- if (iocommand.Request.Type.Direction == XFER_WRITE) {
- /* Copy the data into the buffer we created */
- if (copy_from_user
- (buff, iocommand.buf, iocommand.buf_size)) {
- kfree(buff);
- return -EFAULT;
- }
- } else {
- memset(buff, 0, iocommand.buf_size);
- }
- c = cmd_special_alloc(h);
- if (!c) {
- kfree(buff);
- return -ENOMEM;
- }
- /* Fill in the command type */
- c->cmd_type = CMD_IOCTL_PEND;
- /* Fill in Command Header */
- c->Header.ReplyQueue = 0; /* unused in simple mode */
- if (iocommand.buf_size > 0) /* buffer to fill */
- {
- c->Header.SGList = 1;
- c->Header.SGTotal = 1;
- } else /* no buffers to fill */
- {
- c->Header.SGList = 0;
- c->Header.SGTotal = 0;
- }
- c->Header.LUN = iocommand.LUN_info;
- /* use the kernel address the cmd block for tag */
- c->Header.Tag.lower = c->busaddr;
-
- /* Fill in Request block */
- c->Request = iocommand.Request;
-
- /* Fill in the scatter gather information */
- if (iocommand.buf_size > 0) {
- temp64.val = pci_map_single(h->pdev, buff,
- iocommand.buf_size,
- PCI_DMA_BIDIRECTIONAL);
- c->SG[0].Addr.lower = temp64.val32.lower;
- c->SG[0].Addr.upper = temp64.val32.upper;
- c->SG[0].Len = iocommand.buf_size;
- c->SG[0].Ext = 0; /* we are not chaining */
- }
- c->waiting = &wait;
+ } else {
+ memset(buff, 0, iocommand.buf_size);
+ }
+ c = cmd_special_alloc(h);
+ if (!c) {
+ kfree(buff);
+ return -ENOMEM;
+ }
+ /* Fill in the command type */
+ c->cmd_type = CMD_IOCTL_PEND;
+ /* Fill in Command Header */
+ c->Header.ReplyQueue = 0; /* unused in simple mode */
+ if (iocommand.buf_size > 0) { /* buffer to fill */
+ c->Header.SGList = 1;
+ c->Header.SGTotal = 1;
+ } else { /* no buffers to fill */
+ c->Header.SGList = 0;
+ c->Header.SGTotal = 0;
+ }
+ c->Header.LUN = iocommand.LUN_info;
+ /* use the kernel address the cmd block for tag */
+ c->Header.Tag.lower = c->busaddr;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
+ /* Fill in Request block */
+ c->Request = iocommand.Request;
- /* unlock the buffers from DMA */
- temp64.val32.lower = c->SG[0].Addr.lower;
- temp64.val32.upper = c->SG[0].Addr.upper;
- pci_unmap_single(h->pdev, (dma_addr_t) temp64.val,
- iocommand.buf_size,
- PCI_DMA_BIDIRECTIONAL);
+ /* Fill in the scatter gather information */
+ if (iocommand.buf_size > 0) {
+ temp64.val = pci_map_single(h->pdev, buff,
+ iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
+ c->SG[0].Addr.lower = temp64.val32.lower;
+ c->SG[0].Addr.upper = temp64.val32.upper;
+ c->SG[0].Len = iocommand.buf_size;
+ c->SG[0].Ext = 0; /* we are not chaining */
+ }
+ c->waiting = &wait;
- check_ioctl_unit_attention(h, c);
+ enqueue_cmd_and_start_io(h, c);
+ wait_for_completion(&wait);
- /* Copy the error information out */
- iocommand.error_info = *(c->err_info);
- if (copy_to_user
- (argp, &iocommand, sizeof(IOCTL_Command_struct))) {
- kfree(buff);
- cmd_special_free(h, c);
- return -EFAULT;
- }
+ /* unlock the buffers from DMA */
+ temp64.val32.lower = c->SG[0].Addr.lower;
+ temp64.val32.upper = c->SG[0].Addr.upper;
+ pci_unmap_single(h->pdev, (dma_addr_t) temp64.val, iocommand.buf_size,
+ PCI_DMA_BIDIRECTIONAL);
+ check_ioctl_unit_attention(h, c);
+
+ /* Copy the error information out */
+ iocommand.error_info = *(c->err_info);
+ if (copy_to_user(argp, &iocommand, sizeof(IOCTL_Command_struct))) {
+ kfree(buff);
+ cmd_special_free(h, c);
+ return -EFAULT;
+ }
- if (iocommand.Request.Type.Direction == XFER_READ) {
- /* Copy the data out of the buffer we created */
- if (copy_to_user
- (iocommand.buf, buff, iocommand.buf_size)) {
- kfree(buff);
- cmd_special_free(h, c);
- return -EFAULT;
- }
- }
+ if (iocommand.Request.Type.Direction == XFER_READ) {
+ /* Copy the data out of the buffer we created */
+ if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
kfree(buff);
cmd_special_free(h, c);
- return 0;
+ return -EFAULT;
}
- case CCISS_BIG_PASSTHRU:{
- BIG_IOCTL_Command_struct *ioc;
- CommandList_struct *c;
- unsigned char **buff = NULL;
- int *buff_size = NULL;
- u64bit temp64;
- BYTE sg_used = 0;
- int status = 0;
- int i;
- DECLARE_COMPLETION_ONSTACK(wait);
- __u32 left;
- __u32 sz;
- BYTE __user *data_ptr;
-
- if (!arg)
- return -EINVAL;
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
- ioc = (BIG_IOCTL_Command_struct *)
- kmalloc(sizeof(*ioc), GFP_KERNEL);
- if (!ioc) {
- status = -ENOMEM;
- goto cleanup1;
- }
- if (copy_from_user(ioc, argp, sizeof(*ioc))) {
+ }
+ kfree(buff);
+ cmd_special_free(h, c);
+ return 0;
+}
+
+static int cciss_bigpassthru(ctlr_info_t *h, void __user *argp)
+{
+ BIG_IOCTL_Command_struct *ioc;
+ CommandList_struct *c;
+ unsigned char **buff = NULL;
+ int *buff_size = NULL;
+ u64bit temp64;
+ BYTE sg_used = 0;
+ int status = 0;
+ int i;
+ DECLARE_COMPLETION_ONSTACK(wait);
+ __u32 left;
+ __u32 sz;
+ BYTE __user *data_ptr;
+
+ if (!argp)
+ return -EINVAL;
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
+ ioc = (BIG_IOCTL_Command_struct *)
+ kmalloc(sizeof(*ioc), GFP_KERNEL);
+ if (!ioc) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ if (copy_from_user(ioc, argp, sizeof(*ioc))) {
+ status = -EFAULT;
+ goto cleanup1;
+ }
+ if ((ioc->buf_size < 1) &&
+ (ioc->Request.Type.Direction != XFER_NONE)) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ /* Check kmalloc limits using all SGs */
+ if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES) {
+ status = -EINVAL;
+ goto cleanup1;
+ }
+ buff = kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
+ if (!buff) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ buff_size = kmalloc(MAXSGENTRIES * sizeof(int), GFP_KERNEL);
+ if (!buff_size) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ left = ioc->buf_size;
+ data_ptr = ioc->buf;
+ while (left) {
+ sz = (left > ioc->malloc_size) ? ioc->malloc_size : left;
+ buff_size[sg_used] = sz;
+ buff[sg_used] = kmalloc(sz, GFP_KERNEL);
+ if (buff[sg_used] == NULL) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ if (ioc->Request.Type.Direction == XFER_WRITE) {
+ if (copy_from_user(buff[sg_used], data_ptr, sz)) {
status = -EFAULT;
goto cleanup1;
}
- if ((ioc->buf_size < 1) &&
- (ioc->Request.Type.Direction != XFER_NONE)) {
- status = -EINVAL;
- goto cleanup1;
- }
- /* Check kmalloc limits using all SGs */
- if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
- status = -EINVAL;
- goto cleanup1;
- }
- if (ioc->buf_size > ioc->malloc_size * MAXSGENTRIES) {
- status = -EINVAL;
- goto cleanup1;
- }
- buff =
- kzalloc(MAXSGENTRIES * sizeof(char *), GFP_KERNEL);
- if (!buff) {
- status = -ENOMEM;
- goto cleanup1;
- }
- buff_size = kmalloc(MAXSGENTRIES * sizeof(int),
- GFP_KERNEL);
- if (!buff_size) {
- status = -ENOMEM;
- goto cleanup1;
- }
- left = ioc->buf_size;
- data_ptr = ioc->buf;
- while (left) {
- sz = (left >
- ioc->malloc_size) ? ioc->
- malloc_size : left;
- buff_size[sg_used] = sz;
- buff[sg_used] = kmalloc(sz, GFP_KERNEL);
- if (buff[sg_used] == NULL) {
- status = -ENOMEM;
- goto cleanup1;
- }
- if (ioc->Request.Type.Direction == XFER_WRITE) {
- if (copy_from_user
- (buff[sg_used], data_ptr, sz)) {
- status = -EFAULT;
- goto cleanup1;
- }
- } else {
- memset(buff[sg_used], 0, sz);
- }
- left -= sz;
- data_ptr += sz;
- sg_used++;
- }
- c = cmd_special_alloc(h);
- if (!c) {
- status = -ENOMEM;
- goto cleanup1;
- }
- c->cmd_type = CMD_IOCTL_PEND;
- c->Header.ReplyQueue = 0;
+ } else {
+ memset(buff[sg_used], 0, sz);
+ }
+ left -= sz;
+ data_ptr += sz;
+ sg_used++;
+ }
+ c = cmd_special_alloc(h);
+ if (!c) {
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+ c->cmd_type = CMD_IOCTL_PEND;
+ c->Header.ReplyQueue = 0;
+ c->Header.SGList = sg_used;
+ c->Header.SGTotal = sg_used;
+ c->Header.LUN = ioc->LUN_info;
+ c->Header.Tag.lower = c->busaddr;
- if (ioc->buf_size > 0) {
- c->Header.SGList = sg_used;
- c->Header.SGTotal = sg_used;
- } else {
- c->Header.SGList = 0;
- c->Header.SGTotal = 0;
- }
- c->Header.LUN = ioc->LUN_info;
- c->Header.Tag.lower = c->busaddr;
-
- c->Request = ioc->Request;
- if (ioc->buf_size > 0) {
- for (i = 0; i < sg_used; i++) {
- temp64.val =
- pci_map_single(h->pdev, buff[i],
- buff_size[i],
- PCI_DMA_BIDIRECTIONAL);
- c->SG[i].Addr.lower =
- temp64.val32.lower;
- c->SG[i].Addr.upper =
- temp64.val32.upper;
- c->SG[i].Len = buff_size[i];
- c->SG[i].Ext = 0; /* we are not chaining */
- }
- }
- c->waiting = &wait;
- enqueue_cmd_and_start_io(h, c);
- wait_for_completion(&wait);
- /* unlock the buffers from DMA */
- for (i = 0; i < sg_used; i++) {
- temp64.val32.lower = c->SG[i].Addr.lower;
- temp64.val32.upper = c->SG[i].Addr.upper;
- pci_unmap_single(h->pdev,
- (dma_addr_t) temp64.val, buff_size[i],
- PCI_DMA_BIDIRECTIONAL);
- }
- check_ioctl_unit_attention(h, c);
- /* Copy the error information out */
- ioc->error_info = *(c->err_info);
- if (copy_to_user(argp, ioc, sizeof(*ioc))) {
+ c->Request = ioc->Request;
+ for (i = 0; i < sg_used; i++) {
+ temp64.val = pci_map_single(h->pdev, buff[i], buff_size[i],
+ PCI_DMA_BIDIRECTIONAL);
+ c->SG[i].Addr.lower = temp64.val32.lower;
+ c->SG[i].Addr.upper = temp64.val32.upper;
+ c->SG[i].Len = buff_size[i];
+ c->SG[i].Ext = 0; /* we are not chaining */
+ }
+ c->waiting = &wait;
+ enqueue_cmd_and_start_io(h, c);
+ wait_for_completion(&wait);
+ /* unlock the buffers from DMA */
+ for (i = 0; i < sg_used; i++) {
+ temp64.val32.lower = c->SG[i].Addr.lower;
+ temp64.val32.upper = c->SG[i].Addr.upper;
+ pci_unmap_single(h->pdev,
+ (dma_addr_t) temp64.val, buff_size[i],
+ PCI_DMA_BIDIRECTIONAL);
+ }
+ check_ioctl_unit_attention(h, c);
+ /* Copy the error information out */
+ ioc->error_info = *(c->err_info);
+ if (copy_to_user(argp, ioc, sizeof(*ioc))) {
+ cmd_special_free(h, c);
+ status = -EFAULT;
+ goto cleanup1;
+ }
+ if (ioc->Request.Type.Direction == XFER_READ) {
+ /* Copy the data out of the buffer we created */
+ BYTE __user *ptr = ioc->buf;
+ for (i = 0; i < sg_used; i++) {
+ if (copy_to_user(ptr, buff[i], buff_size[i])) {
cmd_special_free(h, c);
status = -EFAULT;
goto cleanup1;
}
- if (ioc->Request.Type.Direction == XFER_READ) {
- /* Copy the data out of the buffer we created */
- BYTE __user *ptr = ioc->buf;
- for (i = 0; i < sg_used; i++) {
- if (copy_to_user
- (ptr, buff[i], buff_size[i])) {
- cmd_special_free(h, c);
- status = -EFAULT;
- goto cleanup1;
- }
- ptr += buff_size[i];
- }
- }
- cmd_special_free(h, c);
- status = 0;
- cleanup1:
- if (buff) {
- for (i = 0; i < sg_used; i++)
- kfree(buff[i]);
- kfree(buff);
- }
- kfree(buff_size);
- kfree(ioc);
- return status;
+ ptr += buff_size[i];
}
+ }
+ cmd_special_free(h, c);
+ status = 0;
+cleanup1:
+ if (buff) {
+ for (i = 0; i < sg_used; i++)
+ kfree(buff[i]);
+ kfree(buff);
+ }
+ kfree(buff_size);
+ kfree(ioc);
+ return status;
+}
+
+static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ struct gendisk *disk = bdev->bd_disk;
+ ctlr_info_t *h = get_host(disk);
+ void __user *argp = (void __user *)arg;
+
+ dev_dbg(&h->pdev->dev, "cciss_ioctl: Called with cmd=%x %lx\n",
+ cmd, arg);
+ switch (cmd) {
+ case CCISS_GETPCIINFO:
+ return cciss_getpciinfo(h, argp);
+ case CCISS_GETINTINFO:
+ return cciss_getintinfo(h, argp);
+ case CCISS_SETINTINFO:
+ return cciss_setintinfo(h, argp);
+ case CCISS_GETNODENAME:
+ return cciss_getnodename(h, argp);
+ case CCISS_SETNODENAME:
+ return cciss_setnodename(h, argp);
+ case CCISS_GETHEARTBEAT:
+ return cciss_getheartbeat(h, argp);
+ case CCISS_GETBUSTYPES:
+ return cciss_getbustypes(h, argp);
+ case CCISS_GETFIRMVER:
+ return cciss_getfirmver(h, argp);
+ case CCISS_GETDRIVVER:
+ return cciss_getdrivver(h, argp);
+ case CCISS_DEREGDISK:
+ case CCISS_REGNEWD:
+ case CCISS_REVALIDVOLS:
+ return rebuild_lun_table(h, 0, 1);
+ case CCISS_GETLUNINFO:
+ return cciss_getluninfo(h, disk, argp);
+ case CCISS_PASSTHRU:
+ return cciss_passthru(h, argp);
+ case CCISS_BIG_PASSTHRU:
+ return cciss_bigpassthru(h, argp);
/* scsi_cmd_ioctl handles these, below, though some are not */
/* very meaningful for cciss. SG_IO is the main one people want. */
InquiryData_struct *inq_buff = NULL;
for (logvol = 0; logvol < CISS_MAX_LUN; logvol++) {
+ if (!h->drv[logvol])
+ continue;
if (memcmp(h->drv[logvol]->LunID, drv->LunID,
sizeof(drv->LunID)) == 0) {
FOUND = 1;
{
CommandList_struct *c;
- while (!hlist_empty(&h->reqQ)) {
- c = hlist_entry(h->reqQ.first, CommandList_struct, list);
+ while (!list_empty(&h->reqQ)) {
+ c = list_entry(h->reqQ.next, CommandList_struct, list);
/* can't do anything if fifo is full */
if ((h->access.fifo_full(h))) {
dev_warn(&h->pdev->dev, "fifo full\n");
{
u32 tag;
CommandList_struct *c = NULL;
- struct hlist_node *tmp;
__u32 busaddr_masked, tag_masked;
tag = cciss_tag_discard_error_bits(raw_tag);
- hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
+ list_for_each_entry(c, &h->cmpQ, list) {
busaddr_masked = cciss_tag_discard_error_bits(c->busaddr);
tag_masked = cciss_tag_discard_error_bits(tag);
if (busaddr_masked == tag_masked) {
for (i = 0; i < MAX_CONFIG_WAIT; i++) {
if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
break;
- msleep(10);
+ usleep_range(10000, 20000);
}
}
*board_id = ((subsystem_device_id << 16) & 0xffff0000) |
subsystem_vendor_id;
- for (i = 0; i < ARRAY_SIZE(products); i++) {
- /* Stand aside for hpsa driver on request */
- if (cciss_allow_hpsa && products[i].board_id == HPSA_BOUNDARY)
- return -ENODEV;
+ for (i = 0; i < ARRAY_SIZE(products); i++)
if (*board_id == products[i].board_id)
return i;
- }
dev_warn(&pdev->dev, "unrecognized board ID: 0x%08x, ignoring.\n",
*board_id);
return -ENODEV;
return -ENODEV;
}
-static int __devinit cciss_wait_for_board_ready(ctlr_info_t *h)
+static int __devinit cciss_wait_for_board_state(struct pci_dev *pdev,
+ void __iomem *vaddr, int wait_for_ready)
+#define BOARD_READY 1
+#define BOARD_NOT_READY 0
{
- int i;
+ int i, iterations;
u32 scratchpad;
- for (i = 0; i < CCISS_BOARD_READY_ITERATIONS; i++) {
- scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
- if (scratchpad == CCISS_FIRMWARE_READY)
- return 0;
+ if (wait_for_ready)
+ iterations = CCISS_BOARD_READY_ITERATIONS;
+ else
+ iterations = CCISS_BOARD_NOT_READY_ITERATIONS;
+
+ for (i = 0; i < iterations; i++) {
+ scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
+ if (wait_for_ready) {
+ if (scratchpad == CCISS_FIRMWARE_READY)
+ return 0;
+ } else {
+ if (scratchpad != CCISS_FIRMWARE_READY)
+ return 0;
+ }
msleep(CCISS_BOARD_READY_POLL_INTERVAL_MSECS);
}
- dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
+ dev_warn(&pdev->dev, "board not ready, timed out.\n");
return -ENODEV;
}
static void __devinit cciss_get_max_perf_mode_cmds(struct ctlr_info *h)
{
h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+
+ /* Limit commands in memory limited kdump scenario. */
+ if (reset_devices && h->max_commands > 32)
+ h->max_commands = 32;
+
if (h->max_commands < 16) {
dev_warn(&h->pdev->dev, "Controller reports "
"max supported commands of %d, an obvious lie. "
err = -ENOMEM;
goto err_out_free_res;
}
- err = cciss_wait_for_board_ready(h);
+ err = cciss_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
if (err)
goto err_out_free_res;
err = cciss_find_cfgtables(h);
#define cciss_soft_reset_controller(p) cciss_message(p, 1, 0)
#define cciss_noop(p) cciss_message(p, 3, 0)
-static __devinit int cciss_reset_msi(struct pci_dev *pdev)
-{
-/* the #defines are stolen from drivers/pci/msi.h. */
-#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
-#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
-
- int pos;
- u16 control = 0;
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSI_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI\n");
- pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSI_FLAGS_ENABLE);
- }
- }
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
- if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos), &control);
- if (control & PCI_MSIX_FLAGS_ENABLE) {
- dev_info(&pdev->dev, "resetting MSI-X\n");
- pci_write_config_word(pdev, msi_control_reg(pos), control & ~PCI_MSIX_FLAGS_ENABLE);
- }
- }
-
- return 0;
-}
-
static int cciss_controller_hard_reset(struct pci_dev *pdev,
void * __iomem vaddr, bool use_doorbell)
{
* states or using the doorbell register. */
static __devinit int cciss_kdump_hard_reset_controller(struct pci_dev *pdev)
{
- u16 saved_config_space[32];
u64 cfg_offset;
u32 cfg_base_addr;
u64 cfg_base_addr_index;
void __iomem *vaddr;
unsigned long paddr;
u32 misc_fw_support, active_transport;
- int rc, i;
+ int rc;
CfgTable_struct __iomem *cfgtable;
bool use_doorbell;
u32 board_id;
+ u16 command_register;
/* For controllers as old a the p600, this is very nearly
* the same thing as
* pci_set_power_state(pci_dev, PCI_D0);
* pci_restore_state(pci_dev);
*
- * but we can't use these nice canned kernel routines on
- * kexec, because they also check the MSI/MSI-X state in PCI
- * configuration space and do the wrong thing when it is
- * set/cleared. Also, the pci_save/restore_state functions
- * violate the ordering requirements for restoring the
- * configuration space from the CCISS document (see the
- * comment below). So we roll our own ....
- *
* For controllers newer than the P600, the pci power state
* method of resetting doesn't work so we have another way
* using the doorbell register.
return -ENODEV;
}
- for (i = 0; i < 32; i++)
- pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
+ /* Save the PCI command register */
+ pci_read_config_word(pdev, 4, &command_register);
+ /* Turn the board off. This is so that later pci_restore_state()
+ * won't turn the board on before the rest of config space is ready.
+ */
+ pci_disable_device(pdev);
+ pci_save_state(pdev);
/* find the first memory BAR, so we can find the cfg table */
rc = cciss_pci_find_memory_BAR(pdev, &paddr);
rc = cciss_controller_hard_reset(pdev, vaddr, use_doorbell);
if (rc)
goto unmap_cfgtable;
-
- /* Restore the PCI configuration space. The Open CISS
- * Specification says, "Restore the PCI Configuration
- * Registers, offsets 00h through 60h. It is important to
- * restore the command register, 16-bits at offset 04h,
- * last. Do not restore the configuration status register,
- * 16-bits at offset 06h." Note that the offset is 2*i.
- */
- for (i = 0; i < 32; i++) {
- if (i == 2 || i == 3)
- continue;
- pci_write_config_word(pdev, 2*i, saved_config_space[i]);
+ pci_restore_state(pdev);
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ dev_warn(&pdev->dev, "failed to enable device.\n");
+ goto unmap_cfgtable;
}
- wmb();
- pci_write_config_word(pdev, 4, saved_config_space[2]);
+ pci_write_config_word(pdev, 4, command_register);
/* Some devices (notably the HP Smart Array 5i Controller)
need a little pause here */
msleep(CCISS_POST_RESET_PAUSE_MSECS);
+ /* Wait for board to become not ready, then ready. */
+ dev_info(&pdev->dev, "Waiting for board to become ready.\n");
+ rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
+ if (rc) /* Don't bail, might be E500, etc. which can't be reset */
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become not ready\n");
+ rc = cciss_wait_for_board_state(pdev, vaddr, BOARD_READY);
+ if (rc) {
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become ready\n");
+ goto unmap_cfgtable;
+ }
+ dev_info(&pdev->dev, "board ready.\n");
+
/* Controller should be in simple mode at this point. If it's not,
* It means we're on one of those controllers which doesn't support
* the doorbell reset method and on which the PCI power management reset
return 0; /* just try to do the kdump anyhow. */
if (rc)
return -ENODEV;
- if (cciss_reset_msi(pdev))
- return -ENODEV;
/* Now try to get the controller to respond to a no-op */
for (i = 0; i < CCISS_POST_RESET_NOOP_RETRIES; i++) {
h = hba[i];
h->pdev = pdev;
h->busy_initializing = 1;
- INIT_HLIST_HEAD(&h->cmpQ);
- INIT_HLIST_HEAD(&h->reqQ);
+ INIT_LIST_HEAD(&h->cmpQ);
+ INIT_LIST_HEAD(&h->reqQ);
mutex_init(&h->busy_shutting_down);
if (cciss_pci_init(h) != 0)
}
}
kthread_stop(cciss_scan_thread);
- remove_proc_entry("driver/cciss", NULL);
+ if (proc_cciss)
+ remove_proc_entry("driver/cciss", NULL);
bus_unregister(&cciss_bus_type);
}
git.openpandora.org / pandora-kernel.git / commitdiff