BLOCKING,
};
-#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
/**
* _ctl_sas_device_find_by_handle - sas device search
* @ioc: per adapter object
}
}
-#endif
-
/**
* mpt3sas_ctl_done - ctl module completion routine
* @ioc: per adapter object
}
}
}
-#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
_ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
-#endif
ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
complete(&ioc->ctl_cmds.done);
return 1;
* _ctl_verify_adapter - validates ioc_number passed from application
* @ioc: per adapter object
* @iocpp: The ioc pointer is returned in this.
+ * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
+ * MPI25_VERSION for mpt3ctl ioctl device.
*
* Return (-1) means error, else ioc_number.
*/
static int
-_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp)
+_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp,
+ int mpi_version)
{
struct MPT3SAS_ADAPTER *ioc;
-
+ /* global ioc lock to protect controller on list operations */
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
if (ioc->id != ioc_number)
continue;
+ /* Check whether this ioctl command is from right
+ * ioctl device or not, if not continue the search.
+ */
+ if (ioc->hba_mpi_version_belonged != mpi_version)
+ continue;
+ spin_unlock(&gioc_lock);
*iocpp = ioc;
return ioc_number;
}
+ spin_unlock(&gioc_lock);
*iocpp = NULL;
return -1;
}
*
* Called when application request fasyn callback handler.
*/
-static int
+int
_ctl_fasync(int fd, struct file *filep, int mode)
{
return fasync_helper(fd, filep, mode, &async_queue);
* @wait -
*
*/
-static unsigned int
+unsigned int
_ctl_poll(struct file *filep, poll_table *wait)
{
struct MPT3SAS_ADAPTER *ioc;
poll_wait(filep, &ctl_poll_wait, wait);
+ /* global ioc lock to protect controller on list operations */
+ spin_lock(&gioc_lock);
list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
- if (ioc->aen_event_read_flag)
+ if (ioc->aen_event_read_flag) {
+ spin_unlock(&gioc_lock);
return POLLIN | POLLRDNORM;
+ }
}
+ spin_unlock(&gioc_lock);
return 0;
}
psge = (void *)request + (karg.data_sge_offset*4);
/* send command to firmware */
-#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
_ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
-#endif
init_completion(&ioc->ctl_cmds.done);
switch (mpi_request->Function) {
mpi_reply = ioc->ctl_cmds.reply;
ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
-#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
(ioc->logging_level & MPT_DEBUG_TM)) {
Mpi2SCSITaskManagementReply_t *tm_reply =
le32_to_cpu(tm_reply->IOCLogInfo),
le32_to_cpu(tm_reply->TerminationCount));
}
-#endif
+
/* copy out xdata to user */
if (data_in_sz) {
if (copy_to_user(karg.data_in_buf_ptr, data_in,
__func__));
memset(&karg, 0 , sizeof(karg));
- karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
if (ioc->pfacts)
karg.port_number = ioc->pfacts[0].PortNumber;
karg.hw_rev = ioc->pdev->revision;
karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
karg.firmware_version = ioc->facts.FWVersion.Word;
- strcpy(karg.driver_version, MPT3SAS_DRIVER_NAME);
+ strcpy(karg.driver_version, ioc->driver_name);
strcat(karg.driver_version, "-");
- strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
+ switch (ioc->hba_mpi_version_belonged) {
+ case MPI2_VERSION:
+ if (ioc->is_warpdrive)
+ karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
+ else
+ karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
+ strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
+ break;
+ case MPI25_VERSION:
+ karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
+ strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
+ break;
+ }
karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
if (copy_to_user(arg, &karg, sizeof(karg))) {
* _ctl_ioctl_main - main ioctl entry point
* @file - (struct file)
* @cmd - ioctl opcode
- * @arg -
- * compat - handles 32 bit applications in 64bit os
+ * @arg - user space data buffer
+ * @compat - handles 32 bit applications in 64bit os
+ * @mpi_version: will be MPI2_VERSION for mpt2ctl ioctl device &
+ * MPI25_VERSION for mpt3ctl ioctl device.
*/
static long
_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
- u8 compat)
+ u8 compat, u16 mpi_version)
{
struct MPT3SAS_ADAPTER *ioc;
struct mpt3_ioctl_header ioctl_header;
return -EFAULT;
}
- if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
+ if (_ctl_verify_adapter(ioctl_header.ioc_number,
+ &ioc, mpi_version) == -1 || !ioc)
return -ENODEV;
+ /* pci_access_mutex lock acquired by ioctl path */
+ mutex_lock(&ioc->pci_access_mutex);
+
if (ioc->shost_recovery || ioc->pci_error_recovery ||
- ioc->is_driver_loading)
- return -EAGAIN;
+ ioc->is_driver_loading || ioc->remove_host) {
+ ret = -EAGAIN;
+ goto out_unlock_pciaccess;
+ }
state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
if (state == NON_BLOCKING) {
- if (!mutex_trylock(&ioc->ctl_cmds.mutex))
- return -EAGAIN;
- } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
- return -ERESTARTSYS;
+ if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
+ ret = -EAGAIN;
+ goto out_unlock_pciaccess;
+ }
+ } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
+ ret = -ERESTARTSYS;
+ goto out_unlock_pciaccess;
+ }
switch (cmd) {
}
mutex_unlock(&ioc->ctl_cmds.mutex);
+out_unlock_pciaccess:
+ mutex_unlock(&ioc->pci_access_mutex);
return ret;
}
/**
- * _ctl_ioctl - main ioctl entry point (unlocked)
+ * _ctl_ioctl - mpt3ctl main ioctl entry point (unlocked)
* @file - (struct file)
* @cmd - ioctl opcode
* @arg -
*/
-static long
+long
_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
long ret;
- ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0);
+ /* pass MPI25_VERSION value, to indicate that this ioctl cmd
+ * came from mpt3ctl ioctl device.
+ */
+ ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI25_VERSION);
return ret;
}
+/**
+ * _ctl_mpt2_ioctl - mpt2ctl main ioctl entry point (unlocked)
+ * @file - (struct file)
+ * @cmd - ioctl opcode
+ * @arg -
+ */
+long
+_ctl_mpt2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ long ret;
+
+ /* pass MPI2_VERSION value, to indicate that this ioctl cmd
+ * came from mpt2ctl ioctl device.
+ */
+ ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0, MPI2_VERSION);
+ return ret;
+}
#ifdef CONFIG_COMPAT
/**
- * _ctl_ioctl_compat - main ioctl entry point (compat)
+ *_ ctl_ioctl_compat - main ioctl entry point (compat)
* @file -
* @cmd -
* @arg -
*
* This routine handles 32 bit applications in 64bit os.
*/
-static long
+long
_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
{
long ret;
- ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1);
+ ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI25_VERSION);
+ return ret;
+}
+
+/**
+ *_ ctl_mpt2_ioctl_compat - main ioctl entry point (compat)
+ * @file -
+ * @cmd -
+ * @arg -
+ *
+ * This routine handles 32 bit applications in 64bit os.
+ */
+long
+_ctl_mpt2_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
+{
+ long ret;
+
+ ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1, MPI2_VERSION);
return ret;
}
#endif
static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
NULL);
+/**
+ * _ctl_BRM_status_show - Backup Rail Monitor Status
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is number of reply queues
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+ Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
+ Mpi2ConfigReply_t mpi_reply;
+ u16 backup_rail_monitor_status = 0;
+ u16 ioc_status;
+ int sz;
+ ssize_t rc = 0;
+
+ if (!ioc->is_warpdrive) {
+ pr_err(MPT3SAS_FMT "%s: BRM attribute is only for"
+ " warpdrive\n", ioc->name, __func__);
+ goto out;
+ }
+ /* pci_access_mutex lock acquired by sysfs show path */
+ mutex_lock(&ioc->pci_access_mutex);
+ if (ioc->pci_error_recovery || ioc->remove_host) {
+ mutex_unlock(&ioc->pci_access_mutex);
+ return 0;
+ }
+
+ /* allocate upto GPIOVal 36 entries */
+ sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
+ io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
+ if (!io_unit_pg3) {
+ pr_err(MPT3SAS_FMT "%s: failed allocating memory "
+ "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
+ goto out;
+ }
+
+ if (mpt3sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
+ 0) {
+ pr_err(MPT3SAS_FMT
+ "%s: failed reading iounit_pg3\n", ioc->name,
+ __func__);
+ goto out;
+ }
+
+ ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+ if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+ pr_err(MPT3SAS_FMT "%s: iounit_pg3 failed with "
+ "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
+ goto out;
+ }
+
+ if (io_unit_pg3->GPIOCount < 25) {
+ pr_err(MPT3SAS_FMT "%s: iounit_pg3->GPIOCount less than "
+ "25 entries, detected (%d) entries\n", ioc->name, __func__,
+ io_unit_pg3->GPIOCount);
+ goto out;
+ }
+
+ /* BRM status is in bit zero of GPIOVal[24] */
+ backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
+ rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
+
+ out:
+ kfree(io_unit_pg3);
+ mutex_unlock(&ioc->pci_access_mutex);
+ return rc;
+}
+static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
+
struct DIAG_BUFFER_START {
__le32 Size;
__le32 DiagVersion;
&dev_attr_diag_trigger_event,
&dev_attr_diag_trigger_scsi,
&dev_attr_diag_trigger_mpi,
+ &dev_attr_BRM_status,
NULL,
};
NULL,
};
+/* file operations table for mpt3ctl device */
static const struct file_operations ctl_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = _ctl_ioctl,
#endif
};
+/* file operations table for mpt2ctl device */
+static const struct file_operations ctl_gen2_fops = {
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = _ctl_mpt2_ioctl,
+ .poll = _ctl_poll,
+ .fasync = _ctl_fasync,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = _ctl_mpt2_ioctl_compat,
+#endif
+};
+
static struct miscdevice ctl_dev = {
.minor = MPT3SAS_MINOR,
.name = MPT3SAS_DEV_NAME,
.fops = &ctl_fops,
};
+static struct miscdevice gen2_ctl_dev = {
+ .minor = MPT2SAS_MINOR,
+ .name = MPT2SAS_DEV_NAME,
+ .fops = &ctl_gen2_fops,
+};
+
/**
* mpt3sas_ctl_init - main entry point for ctl.
*
*/
void
-mpt3sas_ctl_init(void)
+mpt3sas_ctl_init(ushort hbas_to_enumerate)
{
async_queue = NULL;
- if (misc_register(&ctl_dev) < 0)
- pr_err("%s can't register misc device [minor=%d]\n",
- MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
+
+ /* Don't register mpt3ctl ioctl device if
+ * hbas_to_enumarate is one.
+ */
+ if (hbas_to_enumerate != 1)
+ if (misc_register(&ctl_dev) < 0)
+ pr_err("%s can't register misc device [minor=%d]\n",
+ MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
+
+ /* Don't register mpt3ctl ioctl device if
+ * hbas_to_enumarate is two.
+ */
+ if (hbas_to_enumerate != 2)
+ if (misc_register(&gen2_ctl_dev) < 0)
+ pr_err("%s can't register misc device [minor=%d]\n",
+ MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
init_waitqueue_head(&ctl_poll_wait);
}
*
*/
void
-mpt3sas_ctl_exit(void)
+mpt3sas_ctl_exit(ushort hbas_to_enumerate)
{
struct MPT3SAS_ADAPTER *ioc;
int i;
kfree(ioc->event_log);
}
- misc_deregister(&ctl_dev);
+ if (hbas_to_enumerate != 1)
+ misc_deregister(&ctl_dev);
+ if (hbas_to_enumerate != 2)
+ misc_deregister(&gen2_ctl_dev);
}
Code Review / kvmfornfv.git / blobdiff