diff options
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_ctl.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_ctl.c | 3101 |
1 files changed, 0 insertions, 3101 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c deleted file mode 100644 index 3694b63..0000000 --- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c +++ /dev/null @@ -1,3101 +0,0 @@ -/* - * Management Module Support for MPT (Message Passing Technology) based - * controllers - * - * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c - * Copyright (C) 2007-2014 LSI Corporation - * Copyright (C) 20013-2014 Avago Technologies - * (mailto: MPT-FusionLinux.pdl@avagotech.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * NO WARRANTY - * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR - * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT - * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is - * solely responsible for determining the appropriateness of using and - * distributing the Program and assumes all risks associated with its - * exercise of rights under this Agreement, including but not limited to - * the risks and costs of program errors, damage to or loss of data, - * programs or equipment, and unavailability or interruption of operations. - - * DISCLAIMER OF LIABILITY - * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE - * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED - * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES - - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - * USA. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/mutex.h> -#include <linux/compat.h> -#include <linux/poll.h> - -#include <linux/io.h> -#include <linux/uaccess.h> - -#include "mpt2sas_base.h" -#include "mpt2sas_ctl.h" - -static DEFINE_MUTEX(_ctl_mutex); -static struct fasync_struct *async_queue; -static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait); - -static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, - u8 *issue_reset); - -/** - * enum block_state - blocking state - * @NON_BLOCKING: non blocking - * @BLOCKING: blocking - * - * These states are for ioctls that need to wait for a response - * from firmware, so they probably require sleep. - */ -enum block_state { - NON_BLOCKING, - BLOCKING, -}; - -#ifdef CONFIG_SCSI_MPT2SAS_LOGGING -/** - * _ctl_sas_device_find_by_handle - sas device search - * @ioc: per adapter object - * @handle: sas device handle (assigned by firmware) - * Context: Calling function should acquire ioc->sas_device_lock - * - * This searches for sas_device based on sas_address, then return sas_device - * object. - */ -static struct _sas_device * -_ctl_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) -{ - struct _sas_device *sas_device, *r; - - r = NULL; - list_for_each_entry(sas_device, &ioc->sas_device_list, list) { - if (sas_device->handle != handle) - continue; - r = sas_device; - goto out; - } - - out: - return r; -} - -/** - * _ctl_display_some_debug - debug routine - * @ioc: per adapter object - * @smid: system request message index - * @calling_function_name: string pass from calling function - * @mpi_reply: reply message frame - * Context: none. - * - * Function for displaying debug info helpful when debugging issues - * in this module. - */ -static void -_ctl_display_some_debug(struct MPT2SAS_ADAPTER *ioc, u16 smid, - char *calling_function_name, MPI2DefaultReply_t *mpi_reply) -{ - Mpi2ConfigRequest_t *mpi_request; - char *desc = NULL; - - if (!(ioc->logging_level & MPT_DEBUG_IOCTL)) - return; - - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - switch (mpi_request->Function) { - case MPI2_FUNCTION_SCSI_IO_REQUEST: - { - Mpi2SCSIIORequest_t *scsi_request = - (Mpi2SCSIIORequest_t *)mpi_request; - - snprintf(ioc->tmp_string, MPT_STRING_LENGTH, - "scsi_io, cmd(0x%02x), cdb_len(%d)", - scsi_request->CDB.CDB32[0], - le16_to_cpu(scsi_request->IoFlags) & 0xF); - desc = ioc->tmp_string; - break; - } - case MPI2_FUNCTION_SCSI_TASK_MGMT: - desc = "task_mgmt"; - break; - case MPI2_FUNCTION_IOC_INIT: - desc = "ioc_init"; - break; - case MPI2_FUNCTION_IOC_FACTS: - desc = "ioc_facts"; - break; - case MPI2_FUNCTION_CONFIG: - { - Mpi2ConfigRequest_t *config_request = - (Mpi2ConfigRequest_t *)mpi_request; - - snprintf(ioc->tmp_string, MPT_STRING_LENGTH, - "config, type(0x%02x), ext_type(0x%02x), number(%d)", - (config_request->Header.PageType & - MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType, - config_request->Header.PageNumber); - desc = ioc->tmp_string; - break; - } - case MPI2_FUNCTION_PORT_FACTS: - desc = "port_facts"; - break; - case MPI2_FUNCTION_PORT_ENABLE: - desc = "port_enable"; - break; - case MPI2_FUNCTION_EVENT_NOTIFICATION: - desc = "event_notification"; - break; - case MPI2_FUNCTION_FW_DOWNLOAD: - desc = "fw_download"; - break; - case MPI2_FUNCTION_FW_UPLOAD: - desc = "fw_upload"; - break; - case MPI2_FUNCTION_RAID_ACTION: - desc = "raid_action"; - break; - case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: - { - Mpi2SCSIIORequest_t *scsi_request = - (Mpi2SCSIIORequest_t *)mpi_request; - - snprintf(ioc->tmp_string, MPT_STRING_LENGTH, - "raid_pass, cmd(0x%02x), cdb_len(%d)", - scsi_request->CDB.CDB32[0], - le16_to_cpu(scsi_request->IoFlags) & 0xF); - desc = ioc->tmp_string; - break; - } - case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: - desc = "sas_iounit_cntl"; - break; - case MPI2_FUNCTION_SATA_PASSTHROUGH: - desc = "sata_pass"; - break; - case MPI2_FUNCTION_DIAG_BUFFER_POST: - desc = "diag_buffer_post"; - break; - case MPI2_FUNCTION_DIAG_RELEASE: - desc = "diag_release"; - break; - case MPI2_FUNCTION_SMP_PASSTHROUGH: - desc = "smp_passthrough"; - break; - } - - if (!desc) - return; - - printk(MPT2SAS_INFO_FMT "%s: %s, smid(%d)\n", - ioc->name, calling_function_name, desc, smid); - - if (!mpi_reply) - return; - - if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo) - printk(MPT2SAS_INFO_FMT - "\tiocstatus(0x%04x), loginfo(0x%08x)\n", - ioc->name, le16_to_cpu(mpi_reply->IOCStatus), - le32_to_cpu(mpi_reply->IOCLogInfo)); - - if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || - mpi_request->Function == - MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { - Mpi2SCSIIOReply_t *scsi_reply = - (Mpi2SCSIIOReply_t *)mpi_reply; - struct _sas_device *sas_device = NULL; - unsigned long flags; - - spin_lock_irqsave(&ioc->sas_device_lock, flags); - sas_device = _ctl_sas_device_find_by_handle(ioc, - le16_to_cpu(scsi_reply->DevHandle)); - if (sas_device) { - printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), " - "phy(%d)\n", ioc->name, (unsigned long long) - sas_device->sas_address, sas_device->phy); - printk(MPT2SAS_WARN_FMT - "\tenclosure_logical_id(0x%016llx), slot(%d)\n", - ioc->name, sas_device->enclosure_logical_id, - sas_device->slot); - } - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - if (scsi_reply->SCSIState || scsi_reply->SCSIStatus) - printk(MPT2SAS_INFO_FMT - "\tscsi_state(0x%02x), scsi_status" - "(0x%02x)\n", ioc->name, - scsi_reply->SCSIState, - scsi_reply->SCSIStatus); - } -} -#endif - -/** - * mpt2sas_ctl_done - ctl module completion routine - * @ioc: per adapter object - * @smid: system request message index - * @msix_index: MSIX table index supplied by the OS - * @reply: reply message frame(lower 32bit addr) - * Context: none. - * - * The callback handler when using ioc->ctl_cb_idx. - * - * Return 1 meaning mf should be freed from _base_interrupt - * 0 means the mf is freed from this function. - */ -u8 -mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, - u32 reply) -{ - MPI2DefaultReply_t *mpi_reply; - Mpi2SCSIIOReply_t *scsiio_reply; - const void *sense_data; - u32 sz; - - if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED) - return 1; - if (ioc->ctl_cmds.smid != smid) - return 1; - ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE; - mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); - if (mpi_reply) { - memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); - ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID; - /* get sense data */ - if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || - mpi_reply->Function == - MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { - scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply; - if (scsiio_reply->SCSIState & - MPI2_SCSI_STATE_AUTOSENSE_VALID) { - sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, - le32_to_cpu(scsiio_reply->SenseCount)); - sense_data = mpt2sas_base_get_sense_buffer(ioc, - smid); - memcpy(ioc->ctl_cmds.sense, sense_data, sz); - } - } - } -#ifdef CONFIG_SCSI_MPT2SAS_LOGGING - _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply); -#endif - ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING; - complete(&ioc->ctl_cmds.done); - return 1; -} - -/** - * _ctl_check_event_type - determines when an event needs logging - * @ioc: per adapter object - * @event: firmware event - * - * The bitmask in ioc->event_type[] indicates which events should be - * be saved in the driver event_log. This bitmask is set by application. - * - * Returns 1 when event should be captured, or zero means no match. - */ -static int -_ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event) -{ - u16 i; - u32 desired_event; - - if (event >= 128 || !event || !ioc->event_log) - return 0; - - desired_event = (1 << (event % 32)); - if (!desired_event) - desired_event = 1; - i = event / 32; - return desired_event & ioc->event_type[i]; -} - -/** - * mpt2sas_ctl_add_to_event_log - add event - * @ioc: per adapter object - * @mpi_reply: reply message frame - * - * Return nothing. - */ -void -mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc, - Mpi2EventNotificationReply_t *mpi_reply) -{ - struct MPT2_IOCTL_EVENTS *event_log; - u16 event; - int i; - u32 sz, event_data_sz; - u8 send_aen = 0; - - if (!ioc->event_log) - return; - - event = le16_to_cpu(mpi_reply->Event); - - if (_ctl_check_event_type(ioc, event)) { - - /* insert entry into circular event_log */ - i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE; - event_log = ioc->event_log; - event_log[i].event = event; - event_log[i].context = ioc->event_context++; - - event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4; - sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE); - memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE); - memcpy(event_log[i].data, mpi_reply->EventData, sz); - send_aen = 1; - } - - /* This aen_event_read_flag flag is set until the - * application has read the event log. - * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify. - */ - if (event == MPI2_EVENT_LOG_ENTRY_ADDED || - (send_aen && !ioc->aen_event_read_flag)) { - ioc->aen_event_read_flag = 1; - wake_up_interruptible(&ctl_poll_wait); - if (async_queue) - kill_fasync(&async_queue, SIGIO, POLL_IN); - } -} - -/** - * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time) - * @ioc: per adapter object - * @msix_index: MSIX table index supplied by the OS - * @reply: reply message frame(lower 32bit addr) - * Context: interrupt. - * - * This function merely adds a new work task into ioc->firmware_event_thread. - * The tasks are worked from _firmware_event_work in user context. - * - * Returns void. - */ -void -mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, - u32 reply) -{ - Mpi2EventNotificationReply_t *mpi_reply; - - mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); - if (unlikely(!mpi_reply)) { - printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return; - } - mpt2sas_ctl_add_to_event_log(ioc, mpi_reply); - return; -} - -/** - * _ctl_verify_adapter - validates ioc_number passed from application - * @ioc: per adapter object - * @iocpp: The ioc pointer is returned in this. - * - * Return (-1) means error, else ioc_number. - */ -static int -_ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp) -{ - struct MPT2SAS_ADAPTER *ioc; - /* global ioc lock to protect controller on list operations */ - spin_lock(&gioc_lock); - list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { - if (ioc->id != ioc_number) - continue; - spin_unlock(&gioc_lock); - *iocpp = ioc; - return ioc_number; - } - spin_unlock(&gioc_lock); - *iocpp = NULL; - return -1; -} - -/** - * mpt2sas_ctl_reset_handler - reset callback handler (for ctl) - * @ioc: per adapter object - * @reset_phase: phase - * - * The handler for doing any required cleanup or initialization. - * - * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, - * MPT2_IOC_DONE_RESET - */ -void -mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) -{ - int i; - u8 issue_reset; - - switch (reset_phase) { - case MPT2_IOC_PRE_RESET: - dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); - for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { - if (!(ioc->diag_buffer_status[i] & - MPT2_DIAG_BUFFER_IS_REGISTERED)) - continue; - if ((ioc->diag_buffer_status[i] & - MPT2_DIAG_BUFFER_IS_RELEASED)) - continue; - _ctl_send_release(ioc, i, &issue_reset); - } - break; - case MPT2_IOC_AFTER_RESET: - dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); - if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) { - ioc->ctl_cmds.status |= MPT2_CMD_RESET; - mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid); - complete(&ioc->ctl_cmds.done); - } - break; - case MPT2_IOC_DONE_RESET: - dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); - - for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { - if (!(ioc->diag_buffer_status[i] & - MPT2_DIAG_BUFFER_IS_REGISTERED)) - continue; - if ((ioc->diag_buffer_status[i] & - MPT2_DIAG_BUFFER_IS_RELEASED)) - continue; - ioc->diag_buffer_status[i] |= - MPT2_DIAG_BUFFER_IS_DIAG_RESET; - } - break; - } -} - -/** - * _ctl_fasync - - * @fd - - * @filep - - * @mode - - * - * Called when application request fasyn callback handler. - */ -static int -_ctl_fasync(int fd, struct file *filep, int mode) -{ - return fasync_helper(fd, filep, mode, &async_queue); -} - -/** - * _ctl_poll - - * @file - - * @wait - - * - */ -static unsigned int -_ctl_poll(struct file *filep, poll_table *wait) -{ - struct MPT2SAS_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, &mpt2sas_ioc_list, list) { - if (ioc->aen_event_read_flag) { - spin_unlock(&gioc_lock); - return POLLIN | POLLRDNORM; - } - } - spin_unlock(&gioc_lock); - return 0; -} - -/** - * _ctl_set_task_mid - assign an active smid to tm request - * @ioc: per adapter object - * @karg - (struct mpt2_ioctl_command) - * @tm_request - pointer to mf from user space - * - * Returns 0 when an smid if found, else fail. - * during failure, the reply frame is filled. - */ -static int -_ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg, - Mpi2SCSITaskManagementRequest_t *tm_request) -{ - u8 found = 0; - u16 i; - u16 handle; - struct scsi_cmnd *scmd; - struct MPT2SAS_DEVICE *priv_data; - unsigned long flags; - Mpi2SCSITaskManagementReply_t *tm_reply; - u32 sz; - u32 lun; - char *desc = NULL; - - if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) - desc = "abort_task"; - else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) - desc = "query_task"; - else - return 0; - - lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN); - - handle = le16_to_cpu(tm_request->DevHandle); - spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); - for (i = ioc->scsiio_depth; i && !found; i--) { - scmd = ioc->scsi_lookup[i - 1].scmd; - if (scmd == NULL || scmd->device == NULL || - scmd->device->hostdata == NULL) - continue; - if (lun != scmd->device->lun) - continue; - priv_data = scmd->device->hostdata; - if (priv_data->sas_target == NULL) - continue; - if (priv_data->sas_target->handle != handle) - continue; - tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid); - found = 1; - } - spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); - - if (!found) { - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name, - desc, le16_to_cpu(tm_request->DevHandle), lun)); - tm_reply = ioc->ctl_cmds.reply; - tm_reply->DevHandle = tm_request->DevHandle; - tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; - tm_reply->TaskType = tm_request->TaskType; - tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4; - tm_reply->VP_ID = tm_request->VP_ID; - tm_reply->VF_ID = tm_request->VF_ID; - sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz); - if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply, - sz)) - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - return 1; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name, - desc, le16_to_cpu(tm_request->DevHandle), lun, - le16_to_cpu(tm_request->TaskMID))); - return 0; -} - -/** - * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode - * @ioc: per adapter object - * @karg - (struct mpt2_ioctl_command) - * @mf - pointer to mf in user space - */ -static long -_ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command karg, - void __user *mf) -{ - MPI2RequestHeader_t *mpi_request = NULL, *request; - MPI2DefaultReply_t *mpi_reply; - u32 ioc_state; - u16 ioc_status; - u16 smid; - unsigned long timeout, timeleft; - u8 issue_reset; - u32 sz; - void *psge; - void *data_out = NULL; - dma_addr_t data_out_dma; - size_t data_out_sz = 0; - void *data_in = NULL; - dma_addr_t data_in_dma; - size_t data_in_sz = 0; - u32 sgl_flags; - long ret; - u16 wait_state_count; - - issue_reset = 0; - - if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", - ioc->name, __func__); - ret = -EAGAIN; - goto out; - } - - wait_state_count = 0; - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - if (wait_state_count++ == 10) { - printk(MPT2SAS_ERR_FMT - "%s: failed due to ioc not operational\n", - ioc->name, __func__); - ret = -EFAULT; - goto out; - } - ssleep(1); - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - printk(MPT2SAS_INFO_FMT "%s: waiting for " - "operational state(count=%d)\n", ioc->name, - __func__, wait_state_count); - } - if (wait_state_count) - printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n", - ioc->name, __func__); - - mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL); - if (!mpi_request) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a memory for " - "mpi_request\n", ioc->name, __func__); - ret = -ENOMEM; - goto out; - } - - /* Check for overflow and wraparound */ - if (karg.data_sge_offset * 4 > ioc->request_sz || - karg.data_sge_offset > (UINT_MAX / 4)) { - ret = -EINVAL; - goto out; - } - - /* copy in request message frame from user */ - if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__, - __func__); - ret = -EFAULT; - goto out; - } - - if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { - smid = mpt2sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - ret = -EAGAIN; - goto out; - } - } else { - - smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - ret = -EAGAIN; - goto out; - } - } - - ret = 0; - ioc->ctl_cmds.status = MPT2_CMD_PENDING; - memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); - request = mpt2sas_base_get_msg_frame(ioc, smid); - memcpy(request, mpi_request, karg.data_sge_offset*4); - ioc->ctl_cmds.smid = smid; - data_out_sz = karg.data_out_size; - data_in_sz = karg.data_in_size; - - if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || - mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) { - if (!le16_to_cpu(mpi_request->FunctionDependent1) || - le16_to_cpu(mpi_request->FunctionDependent1) > - ioc->facts.MaxDevHandle) { - ret = -EINVAL; - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - } - - /* obtain dma-able memory for data transfer */ - if (data_out_sz) /* WRITE */ { - data_out = pci_alloc_consistent(ioc->pdev, data_out_sz, - &data_out_dma); - if (!data_out) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -ENOMEM; - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - if (copy_from_user(data_out, karg.data_out_buf_ptr, - data_out_sz)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -EFAULT; - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - } - - if (data_in_sz) /* READ */ { - data_in = pci_alloc_consistent(ioc->pdev, data_in_sz, - &data_in_dma); - if (!data_in) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -ENOMEM; - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - } - - /* add scatter gather elements */ - psge = (void *)request + (karg.data_sge_offset*4); - - if (!data_out_sz && !data_in_sz) { - mpt2sas_base_build_zero_len_sge(ioc, psge); - } else if (data_out_sz && data_in_sz) { - /* WRITE sgel first */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - data_out_sz, data_out_dma); - - /* incr sgel */ - psge += ioc->sge_size; - - /* READ sgel last */ - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - data_in_sz, data_in_dma); - } else if (data_out_sz) /* WRITE */ { - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - data_out_sz, data_out_dma); - } else if (data_in_sz) /* READ */ { - sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT | - MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER | - MPI2_SGE_FLAGS_END_OF_LIST); - sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT; - ioc->base_add_sg_single(psge, sgl_flags | - data_in_sz, data_in_dma); - } - - /* send command to firmware */ -#ifdef CONFIG_SCSI_MPT2SAS_LOGGING - _ctl_display_some_debug(ioc, smid, "ctl_request", NULL); -#endif - - init_completion(&ioc->ctl_cmds.done); - switch (mpi_request->Function) { - case MPI2_FUNCTION_SCSI_IO_REQUEST: - case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH: - { - Mpi2SCSIIORequest_t *scsiio_request = - (Mpi2SCSIIORequest_t *)request; - scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE; - scsiio_request->SenseBufferLowAddress = - mpt2sas_base_get_sense_buffer_dma(ioc, smid); - memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE); - if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST) - mpt2sas_base_put_smid_scsi_io(ioc, smid, - le16_to_cpu(mpi_request->FunctionDependent1)); - else - mpt2sas_base_put_smid_default(ioc, smid); - break; - } - case MPI2_FUNCTION_SCSI_TASK_MGMT: - { - Mpi2SCSITaskManagementRequest_t *tm_request = - (Mpi2SCSITaskManagementRequest_t *)request; - - dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "TASK_MGMT: " - "handle(0x%04x), task_type(0x%02x)\n", ioc->name, - le16_to_cpu(tm_request->DevHandle), tm_request->TaskType)); - - if (tm_request->TaskType == - MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK || - tm_request->TaskType == - MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) { - if (_ctl_set_task_mid(ioc, &karg, tm_request)) { - mpt2sas_base_free_smid(ioc, smid); - goto out; - } - } - - mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu( - tm_request->DevHandle)); - mpt2sas_base_put_smid_hi_priority(ioc, smid); - break; - } - case MPI2_FUNCTION_SMP_PASSTHROUGH: - { - Mpi2SmpPassthroughRequest_t *smp_request = - (Mpi2SmpPassthroughRequest_t *)mpi_request; - u8 *data; - - /* ioc determines which port to use */ - smp_request->PhysicalPort = 0xFF; - if (smp_request->PassthroughFlags & - MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE) - data = (u8 *)&smp_request->SGL; - else { - if (unlikely(data_out == NULL)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - mpt2sas_base_free_smid(ioc, smid); - ret = -EINVAL; - goto out; - } - data = data_out; - } - - if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) { - ioc->ioc_link_reset_in_progress = 1; - ioc->ignore_loginfos = 1; - } - mpt2sas_base_put_smid_default(ioc, smid); - break; - } - case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL: - { - Mpi2SasIoUnitControlRequest_t *sasiounit_request = - (Mpi2SasIoUnitControlRequest_t *)mpi_request; - - if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET - || sasiounit_request->Operation == - MPI2_SAS_OP_PHY_LINK_RESET) { - ioc->ioc_link_reset_in_progress = 1; - ioc->ignore_loginfos = 1; - } - mpt2sas_base_put_smid_default(ioc, smid); - break; - } - default: - mpt2sas_base_put_smid_default(ioc, smid); - break; - } - - if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT) - timeout = MPT2_IOCTL_DEFAULT_TIMEOUT; - else - timeout = karg.timeout; - timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, - timeout*HZ); - if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) { - Mpi2SCSITaskManagementRequest_t *tm_request = - (Mpi2SCSITaskManagementRequest_t *)mpi_request; - mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu( - tm_request->DevHandle)); - } else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH || - mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) && - ioc->ioc_link_reset_in_progress) { - ioc->ioc_link_reset_in_progress = 0; - ioc->ignore_loginfos = 0; - } - if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, - __func__); - _debug_dump_mf(mpi_request, karg.data_sge_offset); - if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - mpi_reply = ioc->ctl_cmds.reply; - ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; - -#ifdef CONFIG_SCSI_MPT2SAS_LOGGING - if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT && - (ioc->logging_level & MPT_DEBUG_TM)) { - Mpi2SCSITaskManagementReply_t *tm_reply = - (Mpi2SCSITaskManagementReply_t *)mpi_reply; - - printk(MPT2SAS_INFO_FMT "TASK_MGMT: " - "IOCStatus(0x%04x), IOCLogInfo(0x%08x), " - "TerminationCount(0x%08x)\n", ioc->name, - le16_to_cpu(tm_reply->IOCStatus), - 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, - data_in_sz)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -ENODATA; - goto out; - } - } - - /* copy out reply message frame to user */ - if (karg.max_reply_bytes) { - sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz); - if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply, - sz)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -ENODATA; - goto out; - } - } - - /* copy out sense to user */ - if (karg.max_sense_bytes && (mpi_request->Function == - MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function == - MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) { - sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE); - if (copy_to_user(karg.sense_data_ptr, - ioc->ctl_cmds.sense, sz)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, - __LINE__, __func__); - ret = -ENODATA; - goto out; - } - } - - issue_host_reset: - if (issue_reset) { - ret = -ENODATA; - if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST || - mpi_request->Function == - MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH || - mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) { - printk(MPT2SAS_INFO_FMT "issue target reset: handle " - "= (0x%04x)\n", ioc->name, - le16_to_cpu(mpi_request->FunctionDependent1)); - mpt2sas_halt_firmware(ioc); - mpt2sas_scsih_issue_tm(ioc, - le16_to_cpu(mpi_request->FunctionDependent1), 0, 0, - 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10, - TM_MUTEX_ON); - ioc->tm_cmds.status = MPT2_CMD_NOT_USED; - } else - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - } - - out: - - /* free memory associated with sg buffers */ - if (data_in) - pci_free_consistent(ioc->pdev, data_in_sz, data_in, - data_in_dma); - - if (data_out) - pci_free_consistent(ioc->pdev, data_out_sz, data_out, - data_out_dma); - - kfree(mpi_request); - ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; - return ret; -} - -/** - * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_getiocinfo(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_iocinfo karg; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, - __func__)); - - memset(&karg, 0 , sizeof(karg)); - if (ioc->is_warpdrive) - karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200; - else - karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2; - if (ioc->pfacts) - karg.port_number = ioc->pfacts[0].PortNumber; - karg.hw_rev = ioc->pdev->revision; - karg.pci_id = ioc->pdev->device; - karg.subsystem_device = ioc->pdev->subsystem_device; - karg.subsystem_vendor = ioc->pdev->subsystem_vendor; - karg.pci_information.u.bits.bus = ioc->pdev->bus->number; - karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn); - 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, MPT2SAS_DRIVER_NAME); - strcat(karg.driver_version, "-"); - strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION); - karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion); - - if (copy_to_user(arg, &karg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - return 0; -} - -/** - * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_eventquery(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_eventquery karg; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, - __func__)); - - karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE; - memcpy(karg.event_types, ioc->event_type, - MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); - - if (copy_to_user(arg, &karg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - return 0; -} - -/** - * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_eventenable(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_eventenable karg; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, - __func__)); - - if (ioc->event_log) - return 0; - memcpy(ioc->event_type, karg.event_types, - MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32)); - mpt2sas_base_validate_event_type(ioc, ioc->event_type); - - /* initialize event_log */ - ioc->event_context = 0; - ioc->aen_event_read_flag = 0; - ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE, - sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL); - if (!ioc->event_log) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -ENOMEM; - } - return 0; -} - -/** - * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_eventreport(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_eventreport karg; - u32 number_bytes, max_events, max; - struct mpt2_ioctl_eventreport __user *uarg = arg; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, - __func__)); - - number_bytes = karg.hdr.max_data_size - - sizeof(struct mpt2_ioctl_header); - max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS); - max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events); - - /* If fewer than 1 event is requested, there must have - * been some type of error. - */ - if (!max || !ioc->event_log) - return -ENODATA; - - number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS); - if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - /* reset flag so SIGIO can restart */ - ioc->aen_event_read_flag = 0; - return 0; -} - -/** - * _ctl_do_reset - main handler for MPT2HARDRESET opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_do_reset(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_diag_reset karg; - int retval; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - if (ioc->shost_recovery || ioc->pci_error_recovery || - ioc->is_driver_loading) - return -EAGAIN; - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, - __func__)); - - retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - printk(MPT2SAS_INFO_FMT "host reset: %s\n", - ioc->name, ((!retval) ? "SUCCESS" : "FAILED")); - return 0; -} - -/** - * _ctl_btdh_search_sas_device - searching for sas device - * @ioc: per adapter object - * @btdh: btdh ioctl payload - */ -static int -_ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc, - struct mpt2_ioctl_btdh_mapping *btdh) -{ - struct _sas_device *sas_device; - unsigned long flags; - int rc = 0; - - if (list_empty(&ioc->sas_device_list)) - return rc; - - spin_lock_irqsave(&ioc->sas_device_lock, flags); - list_for_each_entry(sas_device, &ioc->sas_device_list, list) { - if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && - btdh->handle == sas_device->handle) { - btdh->bus = sas_device->channel; - btdh->id = sas_device->id; - rc = 1; - goto out; - } else if (btdh->bus == sas_device->channel && btdh->id == - sas_device->id && btdh->handle == 0xFFFF) { - btdh->handle = sas_device->handle; - rc = 1; - goto out; - } - } - out: - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); - return rc; -} - -/** - * _ctl_btdh_search_raid_device - searching for raid device - * @ioc: per adapter object - * @btdh: btdh ioctl payload - */ -static int -_ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc, - struct mpt2_ioctl_btdh_mapping *btdh) -{ - struct _raid_device *raid_device; - unsigned long flags; - int rc = 0; - - if (list_empty(&ioc->raid_device_list)) - return rc; - - spin_lock_irqsave(&ioc->raid_device_lock, flags); - list_for_each_entry(raid_device, &ioc->raid_device_list, list) { - if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF && - btdh->handle == raid_device->handle) { - btdh->bus = raid_device->channel; - btdh->id = raid_device->id; - rc = 1; - goto out; - } else if (btdh->bus == raid_device->channel && btdh->id == - raid_device->id && btdh->handle == 0xFFFF) { - btdh->handle = raid_device->handle; - rc = 1; - goto out; - } - } - out: - spin_unlock_irqrestore(&ioc->raid_device_lock, flags); - return rc; -} - -/** - * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_btdh_mapping(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_ioctl_btdh_mapping karg; - int rc; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - rc = _ctl_btdh_search_sas_device(ioc, &karg); - if (!rc) - _ctl_btdh_search_raid_device(ioc, &karg); - - if (copy_to_user(arg, &karg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - return 0; -} - -/** - * _ctl_diag_capability - return diag buffer capability - * @ioc: per adapter object - * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED - * - * returns 1 when diag buffer support is enabled in firmware - */ -static u8 -_ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type) -{ - u8 rc = 0; - - switch (buffer_type) { - case MPI2_DIAG_BUF_TYPE_TRACE: - if (ioc->facts.IOCCapabilities & - MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) - rc = 1; - break; - case MPI2_DIAG_BUF_TYPE_SNAPSHOT: - if (ioc->facts.IOCCapabilities & - MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) - rc = 1; - break; - case MPI2_DIAG_BUF_TYPE_EXTENDED: - if (ioc->facts.IOCCapabilities & - MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) - rc = 1; - } - - return rc; -} - -/** - * _ctl_diag_register_2 - wrapper for registering diag buffer support - * @ioc: per adapter object - * @diag_register: the diag_register struct passed in from user space - * - */ -static long -_ctl_diag_register_2(struct MPT2SAS_ADAPTER *ioc, - struct mpt2_diag_register *diag_register) -{ - int rc, i; - void *request_data = NULL; - dma_addr_t request_data_dma; - u32 request_data_sz = 0; - Mpi2DiagBufferPostRequest_t *mpi_request; - Mpi2DiagBufferPostReply_t *mpi_reply; - u8 buffer_type; - unsigned long timeleft; - u16 smid; - u16 ioc_status; - u8 issue_reset = 0; - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - buffer_type = diag_register->buffer_type; - if (!_ctl_diag_capability(ioc, buffer_type)) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -EPERM; - } - - if (ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_REGISTERED) { - printk(MPT2SAS_ERR_FMT "%s: already has a registered " - "buffer for buffer_type(0x%02x)\n", ioc->name, __func__, - buffer_type); - return -EINVAL; - } - - if (diag_register->requested_buffer_size % 4) { - printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size " - "is not 4 byte aligned\n", ioc->name, __func__); - return -EINVAL; - } - - smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - rc = 0; - ioc->ctl_cmds.status = MPT2_CMD_PENDING; - memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->ctl_cmds.smid = smid; - - request_data = ioc->diag_buffer[buffer_type]; - request_data_sz = diag_register->requested_buffer_size; - ioc->unique_id[buffer_type] = diag_register->unique_id; - ioc->diag_buffer_status[buffer_type] = 0; - memcpy(ioc->product_specific[buffer_type], - diag_register->product_specific, MPT2_PRODUCT_SPECIFIC_DWORDS); - ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags; - - if (request_data) { - request_data_dma = ioc->diag_buffer_dma[buffer_type]; - if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) { - pci_free_consistent(ioc->pdev, - ioc->diag_buffer_sz[buffer_type], - request_data, request_data_dma); - request_data = NULL; - } - } - - if (request_data == NULL) { - ioc->diag_buffer_sz[buffer_type] = 0; - ioc->diag_buffer_dma[buffer_type] = 0; - request_data = pci_alloc_consistent( - ioc->pdev, request_data_sz, &request_data_dma); - if (request_data == NULL) { - printk(MPT2SAS_ERR_FMT "%s: failed allocating memory" - " for diag buffers, requested size(%d)\n", - ioc->name, __func__, request_data_sz); - mpt2sas_base_free_smid(ioc, smid); - return -ENOMEM; - } - ioc->diag_buffer[buffer_type] = request_data; - ioc->diag_buffer_sz[buffer_type] = request_data_sz; - ioc->diag_buffer_dma[buffer_type] = request_data_dma; - } - - mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; - mpi_request->BufferType = diag_register->buffer_type; - mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags); - mpi_request->BufferAddress = cpu_to_le64(request_data_dma); - mpi_request->BufferLength = cpu_to_le32(request_data_sz); - mpi_request->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(0x%p), " - "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data, - (unsigned long long)request_data_dma, - le32_to_cpu(mpi_request->BufferLength))); - - for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) - mpi_request->ProductSpecific[i] = - cpu_to_le32(ioc->product_specific[buffer_type][i]); - - init_completion(&ioc->ctl_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, - MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); - - if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, - __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2DiagBufferPostRequest_t)/4); - if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - /* process the completed Reply Message Frame */ - if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { - printk(MPT2SAS_ERR_FMT "%s: no reply message\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - - mpi_reply = ioc->ctl_cmds.reply; - ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; - - if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { - ioc->diag_buffer_status[buffer_type] |= - MPT2_DIAG_BUFFER_IS_REGISTERED; - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n", - ioc->name, __func__)); - } else { - printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) " - "log_info(0x%08x)\n", ioc->name, __func__, - ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); - rc = -EFAULT; - } - - issue_host_reset: - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - - out: - - if (rc && request_data) - pci_free_consistent(ioc->pdev, request_data_sz, - request_data, request_data_dma); - - ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; - return rc; -} - -/** - * mpt2sas_enable_diag_buffer - enabling diag_buffers support driver load time - * @ioc: per adapter object - * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1 - * - * This is called when command line option diag_buffer_enable is enabled - * at driver load time. - */ -void -mpt2sas_enable_diag_buffer(struct MPT2SAS_ADAPTER *ioc, u8 bits_to_register) -{ - struct mpt2_diag_register diag_register; - - memset(&diag_register, 0, sizeof(struct mpt2_diag_register)); - - if (bits_to_register & 1) { - printk(MPT2SAS_INFO_FMT "registering trace buffer support\n", - ioc->name); - diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE; - /* register for 1MB buffers */ - diag_register.requested_buffer_size = (1024 * 1024); - diag_register.unique_id = 0x7075900; - _ctl_diag_register_2(ioc, &diag_register); - } - - if (bits_to_register & 2) { - printk(MPT2SAS_INFO_FMT "registering snapshot buffer support\n", - ioc->name); - diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT; - /* register for 2MB buffers */ - diag_register.requested_buffer_size = 2 * (1024 * 1024); - diag_register.unique_id = 0x7075901; - _ctl_diag_register_2(ioc, &diag_register); - } - - if (bits_to_register & 4) { - printk(MPT2SAS_INFO_FMT "registering extended buffer support\n", - ioc->name); - diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED; - /* register for 2MB buffers */ - diag_register.requested_buffer_size = 2 * (1024 * 1024); - diag_register.unique_id = 0x7075901; - _ctl_diag_register_2(ioc, &diag_register); - } -} - -/** - * _ctl_diag_register - application register with driver - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - * - * This will allow the driver to setup any required buffers that will be - * needed by firmware to communicate with the driver. - */ -static long -_ctl_diag_register(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_diag_register karg; - long rc; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - rc = _ctl_diag_register_2(ioc, &karg); - return rc; -} - -/** - * _ctl_diag_unregister - application unregister with driver - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - * - * This will allow the driver to cleanup any memory allocated for diag - * messages and to free up any resources. - */ -static long -_ctl_diag_unregister(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_diag_unregister karg; - void *request_data; - dma_addr_t request_data_dma; - u32 request_data_sz; - u8 buffer_type; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - buffer_type = karg.unique_id & 0x000000ff; - if (!_ctl_diag_capability(ioc, buffer_type)) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -EPERM; - } - - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " - "registered\n", ioc->name, __func__, buffer_type); - return -EINVAL; - } - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been " - "released\n", ioc->name, __func__, buffer_type); - return -EINVAL; - } - - if (karg.unique_id != ioc->unique_id[buffer_type]) { - printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " - "registered\n", ioc->name, __func__, karg.unique_id); - return -EINVAL; - } - - request_data = ioc->diag_buffer[buffer_type]; - if (!request_data) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -ENOMEM; - } - - request_data_sz = ioc->diag_buffer_sz[buffer_type]; - request_data_dma = ioc->diag_buffer_dma[buffer_type]; - pci_free_consistent(ioc->pdev, request_data_sz, - request_data, request_data_dma); - ioc->diag_buffer[buffer_type] = NULL; - ioc->diag_buffer_status[buffer_type] = 0; - return 0; -} - -/** - * _ctl_diag_query - query relevant info associated with diag buffers - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - * - * The application will send only buffer_type and unique_id. Driver will - * inspect unique_id first, if valid, fill in all the info. If unique_id is - * 0x00, the driver will return info specified by Buffer Type. - */ -static long -_ctl_diag_query(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_diag_query karg; - void *request_data; - int i; - u8 buffer_type; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - karg.application_flags = 0; - buffer_type = karg.buffer_type; - - if (!_ctl_diag_capability(ioc, buffer_type)) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -EPERM; - } - - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " - "registered\n", ioc->name, __func__, buffer_type); - return -EINVAL; - } - - if (karg.unique_id & 0xffffff00) { - if (karg.unique_id != ioc->unique_id[buffer_type]) { - printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " - "registered\n", ioc->name, __func__, - karg.unique_id); - return -EINVAL; - } - } - - request_data = ioc->diag_buffer[buffer_type]; - if (!request_data) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -ENOMEM; - } - - if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED) - karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | - MPT2_APP_FLAGS_BUFFER_VALID); - else - karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED | - MPT2_APP_FLAGS_BUFFER_VALID | - MPT2_APP_FLAGS_FW_BUFFER_ACCESS); - - for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) - karg.product_specific[i] = - ioc->product_specific[buffer_type][i]; - - karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type]; - karg.driver_added_buffer_size = 0; - karg.unique_id = ioc->unique_id[buffer_type]; - karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type]; - - if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) { - printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query " - "data @ %p\n", ioc->name, __func__, arg); - return -EFAULT; - } - return 0; -} - -/** - * _ctl_send_release - Diag Release Message - * @ioc: per adapter object - * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED - * @issue_reset - specifies whether host reset is required. - * - */ -static int -_ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset) -{ - Mpi2DiagReleaseRequest_t *mpi_request; - Mpi2DiagReleaseReply_t *mpi_reply; - u16 smid; - u16 ioc_status; - u32 ioc_state; - int rc; - unsigned long timeleft; - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - rc = 0; - *issue_reset = 0; - - ioc_state = mpt2sas_base_get_iocstate(ioc, 1); - if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "skipping due to FAULT state\n", ioc->name, - __func__)); - rc = -EAGAIN; - goto out; - } - - if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - ioc->ctl_cmds.status = MPT2_CMD_PENDING; - memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->ctl_cmds.smid = smid; - - mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE; - mpi_request->BufferType = buffer_type; - mpi_request->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; - - init_completion(&ioc->ctl_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, - MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); - - if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, - __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2DiagReleaseRequest_t)/4); - if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) - *issue_reset = 1; - rc = -EFAULT; - goto out; - } - - /* process the completed Reply Message Frame */ - if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { - printk(MPT2SAS_ERR_FMT "%s: no reply message\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - - mpi_reply = ioc->ctl_cmds.reply; - ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; - - if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { - ioc->diag_buffer_status[buffer_type] |= - MPT2_DIAG_BUFFER_IS_RELEASED; - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n", - ioc->name, __func__)); - } else { - printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) " - "log_info(0x%08x)\n", ioc->name, __func__, - ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); - rc = -EFAULT; - } - - out: - ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; - return rc; -} - -/** - * _ctl_diag_release - request to send Diag Release Message to firmware - * @arg - user space buffer containing ioctl content - * - * This allows ownership of the specified buffer to returned to the driver, - * allowing an application to read the buffer without fear that firmware is - * overwritting information in the buffer. - */ -static long -_ctl_diag_release(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_diag_release karg; - void *request_data; - int rc; - u8 buffer_type; - u8 issue_reset = 0; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - buffer_type = karg.unique_id & 0x000000ff; - if (!_ctl_diag_capability(ioc, buffer_type)) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -EPERM; - } - - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not " - "registered\n", ioc->name, __func__, buffer_type); - return -EINVAL; - } - - if (karg.unique_id != ioc->unique_id[buffer_type]) { - printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " - "registered\n", ioc->name, __func__, karg.unique_id); - return -EINVAL; - } - - if (ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_RELEASED) { - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " - "is already released\n", ioc->name, __func__, - buffer_type); - return 0; - } - - request_data = ioc->diag_buffer[buffer_type]; - - if (!request_data) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -ENOMEM; - } - - /* buffers were released by due to host reset */ - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_DIAG_RESET)) { - ioc->diag_buffer_status[buffer_type] |= - MPT2_DIAG_BUFFER_IS_RELEASED; - ioc->diag_buffer_status[buffer_type] &= - ~MPT2_DIAG_BUFFER_IS_DIAG_RESET; - printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) " - "was released due to host reset\n", ioc->name, __func__, - buffer_type); - return 0; - } - - rc = _ctl_send_release(ioc, buffer_type, &issue_reset); - - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - - return rc; -} - -/** - * _ctl_diag_read_buffer - request for copy of the diag buffer - * @ioc: per adapter object - * @arg - user space buffer containing ioctl content - */ -static long -_ctl_diag_read_buffer(struct MPT2SAS_ADAPTER *ioc, void __user *arg) -{ - struct mpt2_diag_read_buffer karg; - struct mpt2_diag_read_buffer __user *uarg = arg; - void *request_data, *diag_data; - Mpi2DiagBufferPostRequest_t *mpi_request; - Mpi2DiagBufferPostReply_t *mpi_reply; - int rc, i; - u8 buffer_type; - unsigned long timeleft, request_size, copy_size; - u16 smid; - u16 ioc_status; - u8 issue_reset = 0; - - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, - __func__)); - - buffer_type = karg.unique_id & 0x000000ff; - if (!_ctl_diag_capability(ioc, buffer_type)) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -EPERM; - } - - if (karg.unique_id != ioc->unique_id[buffer_type]) { - printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not " - "registered\n", ioc->name, __func__, karg.unique_id); - return -EINVAL; - } - - request_data = ioc->diag_buffer[buffer_type]; - if (!request_data) { - printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type); - return -ENOMEM; - } - - request_size = ioc->diag_buffer_sz[buffer_type]; - - if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) { - printk(MPT2SAS_ERR_FMT "%s: either the starting_offset " - "or bytes_to_read are not 4 byte aligned\n", ioc->name, - __func__); - return -EINVAL; - } - - if (karg.starting_offset > request_size) - return -EINVAL; - - diag_data = (void *)(request_data + karg.starting_offset); - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(%p), " - "offset(%d), sz(%d)\n", ioc->name, __func__, - diag_data, karg.starting_offset, karg.bytes_to_read)); - - /* Truncate data on requests that are too large */ - if ((diag_data + karg.bytes_to_read < diag_data) || - (diag_data + karg.bytes_to_read > request_data + request_size)) - copy_size = request_size - karg.starting_offset; - else - copy_size = karg.bytes_to_read; - - if (copy_to_user((void __user *)uarg->diagnostic_data, - diag_data, copy_size)) { - printk(MPT2SAS_ERR_FMT "%s: Unable to write " - "mpt_diag_read_buffer_t data @ %p\n", ioc->name, - __func__, diag_data); - return -EFAULT; - } - - if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0) - return 0; - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: Reregister " - "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type)); - if ((ioc->diag_buffer_status[buffer_type] & - MPT2_DIAG_BUFFER_IS_RELEASED) == 0) { - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " - "buffer_type(0x%02x) is still registered\n", ioc->name, - __func__, buffer_type)); - return 0; - } - /* Get a free request frame and save the message context. - */ - - if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) { - printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx); - if (!smid) { - printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", - ioc->name, __func__); - rc = -EAGAIN; - goto out; - } - - rc = 0; - ioc->ctl_cmds.status = MPT2_CMD_PENDING; - memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz); - mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->ctl_cmds.smid = smid; - - mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST; - mpi_request->BufferType = buffer_type; - mpi_request->BufferLength = - cpu_to_le32(ioc->diag_buffer_sz[buffer_type]); - mpi_request->BufferAddress = - cpu_to_le64(ioc->diag_buffer_dma[buffer_type]); - for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++) - mpi_request->ProductSpecific[i] = - cpu_to_le32(ioc->product_specific[buffer_type][i]); - mpi_request->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; - - init_completion(&ioc->ctl_cmds.done); - mpt2sas_base_put_smid_default(ioc, smid); - timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done, - MPT2_IOCTL_DEFAULT_TIMEOUT*HZ); - - if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) { - printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, - __func__); - _debug_dump_mf(mpi_request, - sizeof(Mpi2DiagBufferPostRequest_t)/4); - if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET)) - issue_reset = 1; - goto issue_host_reset; - } - - /* process the completed Reply Message Frame */ - if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) { - printk(MPT2SAS_ERR_FMT "%s: no reply message\n", - ioc->name, __func__); - rc = -EFAULT; - goto out; - } - - mpi_reply = ioc->ctl_cmds.reply; - ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; - - if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { - ioc->diag_buffer_status[buffer_type] |= - MPT2_DIAG_BUFFER_IS_REGISTERED; - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n", - ioc->name, __func__)); - } else { - printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) " - "log_info(0x%08x)\n", ioc->name, __func__, - ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo)); - rc = -EFAULT; - } - - issue_host_reset: - if (issue_reset) - mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP, - FORCE_BIG_HAMMER); - - out: - - ioc->ctl_cmds.status = MPT2_CMD_NOT_USED; - return rc; -} - - -#ifdef CONFIG_COMPAT -/** - * _ctl_compat_mpt_command - convert 32bit pointers to 64bit. - * @ioc: per adapter object - * @cmd - ioctl opcode - * @arg - (struct mpt2_ioctl_command32) - * - * MPT2COMMAND32 - Handle 32bit applications running on 64bit os. - */ -static long -_ctl_compat_mpt_command(struct MPT2SAS_ADAPTER *ioc, unsigned cmd, - void __user *arg) -{ - struct mpt2_ioctl_command32 karg32; - struct mpt2_ioctl_command32 __user *uarg; - struct mpt2_ioctl_command karg; - - if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32)) - return -EINVAL; - - uarg = (struct mpt2_ioctl_command32 __user *) arg; - - if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - memset(&karg, 0, sizeof(struct mpt2_ioctl_command)); - karg.hdr.ioc_number = karg32.hdr.ioc_number; - karg.hdr.port_number = karg32.hdr.port_number; - karg.hdr.max_data_size = karg32.hdr.max_data_size; - karg.timeout = karg32.timeout; - karg.max_reply_bytes = karg32.max_reply_bytes; - karg.data_in_size = karg32.data_in_size; - karg.data_out_size = karg32.data_out_size; - karg.max_sense_bytes = karg32.max_sense_bytes; - karg.data_sge_offset = karg32.data_sge_offset; - karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr); - karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr); - karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr); - karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr); - return _ctl_do_mpt_command(ioc, karg, &uarg->mf); -} -#endif - -/** - * _ctl_ioctl_main - main ioctl entry point - * @file - (struct file) - * @cmd - ioctl opcode - * @arg - - * compat - handles 32 bit applications in 64bit os - */ -static long -_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg, - u8 compat) -{ - struct MPT2SAS_ADAPTER *ioc; - struct mpt2_ioctl_header ioctl_header; - enum block_state state; - long ret = -EINVAL; - - /* get IOCTL header */ - if (copy_from_user(&ioctl_header, (char __user *)arg, - sizeof(struct mpt2_ioctl_header))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - - if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -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 || 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)) { - ret = -EAGAIN; - goto out_unlock_pciaccess; - } - } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) { - ret = -ERESTARTSYS; - goto out_unlock_pciaccess; - } - - switch (cmd) { - case MPT2IOCINFO: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo)) - ret = _ctl_getiocinfo(ioc, arg); - break; -#ifdef CONFIG_COMPAT - case MPT2COMMAND32: -#endif - case MPT2COMMAND: - { - struct mpt2_ioctl_command __user *uarg; - struct mpt2_ioctl_command karg; -#ifdef CONFIG_COMPAT - if (compat) { - ret = _ctl_compat_mpt_command(ioc, cmd, arg); - break; - } -#endif - if (copy_from_user(&karg, arg, sizeof(karg))) { - printk(KERN_ERR "failure at %s:%d/%s()!\n", - __FILE__, __LINE__, __func__); - ret = -EFAULT; - break; - } - - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) { - uarg = arg; - ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf); - } - break; - } - case MPT2EVENTQUERY: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery)) - ret = _ctl_eventquery(ioc, arg); - break; - case MPT2EVENTENABLE: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable)) - ret = _ctl_eventenable(ioc, arg); - break; - case MPT2EVENTREPORT: - ret = _ctl_eventreport(ioc, arg); - break; - case MPT2HARDRESET: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset)) - ret = _ctl_do_reset(ioc, arg); - break; - case MPT2BTDHMAPPING: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping)) - ret = _ctl_btdh_mapping(ioc, arg); - break; - case MPT2DIAGREGISTER: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register)) - ret = _ctl_diag_register(ioc, arg); - break; - case MPT2DIAGUNREGISTER: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister)) - ret = _ctl_diag_unregister(ioc, arg); - break; - case MPT2DIAGQUERY: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query)) - ret = _ctl_diag_query(ioc, arg); - break; - case MPT2DIAGRELEASE: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release)) - ret = _ctl_diag_release(ioc, arg); - break; - case MPT2DIAGREADBUFFER: - if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer)) - ret = _ctl_diag_read_buffer(ioc, arg); - break; - default: - - dctlprintk(ioc, printk(MPT2SAS_INFO_FMT - "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd)); - break; - } - - mutex_unlock(&ioc->ctl_cmds.mutex); -out_unlock_pciaccess: - mutex_unlock(&ioc->pci_access_mutex); - return ret; -} - -/** - * _ctl_ioctl - main ioctl entry point (unlocked) - * @file - (struct file) - * @cmd - ioctl opcode - * @arg - - */ -static long -_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - long ret; - - ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0); - return ret; -} -#ifdef CONFIG_COMPAT -/** - * _ctl_ioctl_compat - main ioctl entry point (compat) - * @file - - * @cmd - - * @arg - - * - * This routine handles 32 bit applications in 64bit os. - */ -static long -_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg) -{ - long ret; - - ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1); - return ret; -} -#endif - -/* scsi host attributes */ - -/** - * _ctl_version_fw_show - firmware version - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", - (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, - (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, - (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, - ioc->facts.FWVersion.Word & 0x000000FF); -} -static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL); - -/** - * _ctl_version_bios_show - bios version - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion); - - return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", - (version & 0xFF000000) >> 24, - (version & 0x00FF0000) >> 16, - (version & 0x0000FF00) >> 8, - version & 0x000000FF); -} -static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL); - -/** - * _ctl_version_mpi_show - MPI (message passing interface) version - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%03x.%02x\n", - ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8); -} -static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL); - -/** - * _ctl_version_product_show - product name - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_product_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName); -} -static DEVICE_ATTR(version_product, S_IRUGO, - _ctl_version_product_show, NULL); - -/** - * _ctl_version_nvdata_persistent_show - ndvata persistent version - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_nvdata_persistent_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%08xh\n", - le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word)); -} -static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, - _ctl_version_nvdata_persistent_show, NULL); - -/** - * _ctl_version_nvdata_default_show - nvdata default version - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_version_nvdata_default_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%08xh\n", - le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word)); -} -static DEVICE_ATTR(version_nvdata_default, S_IRUGO, - _ctl_version_nvdata_default_show, NULL); - -/** - * _ctl_board_name_show - board name - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_board_name_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName); -} -static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL); - -/** - * _ctl_board_assembly_show - board assembly name - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly); -} -static DEVICE_ATTR(board_assembly, S_IRUGO, - _ctl_board_assembly_show, NULL); - -/** - * _ctl_board_tracer_show - board tracer number - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber); -} -static DEVICE_ATTR(board_tracer, S_IRUGO, - _ctl_board_tracer_show, NULL); - -/** - * _ctl_io_delay_show - io missing delay - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is for firmware implemention for deboucing device - * removal events. - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); -} -static DEVICE_ATTR(io_delay, S_IRUGO, - _ctl_io_delay_show, NULL); - -/** - * _ctl_device_delay_show - device missing delay - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is for firmware implemention for deboucing device - * removal events. - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); -} -static DEVICE_ATTR(device_delay, S_IRUGO, - _ctl_device_delay_show, NULL); - -/** - * _ctl_fw_queue_depth_show - global credits - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is firmware queue depth limit - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit); -} -static DEVICE_ATTR(fw_queue_depth, S_IRUGO, - _ctl_fw_queue_depth_show, NULL); - -/** - * _ctl_sas_address_show - sas address - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is the controller sas address - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", - (unsigned long long)ioc->sas_hba.sas_address); -} -static DEVICE_ATTR(host_sas_address, S_IRUGO, - _ctl_host_sas_address_show, NULL); - -/** - * _ctl_logging_level_show - logging level - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read/write' shost attribute. - */ -static ssize_t -_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level); -} -static ssize_t -_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - int val = 0; - - if (sscanf(buf, "%x", &val) != 1) - return -EINVAL; - - ioc->logging_level = val; - printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name, - ioc->logging_level); - return strlen(buf); -} -static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, - _ctl_logging_level_show, _ctl_logging_level_store); - -/* device attributes */ -/* - * _ctl_fwfault_debug_show - show/store fwfault_debug - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * mpt2sas_fwfault_debug is command line option - * A sysfs 'read/write' shost attribute. - */ -static ssize_t -_ctl_fwfault_debug_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug); -} -static ssize_t -_ctl_fwfault_debug_store(struct device *cdev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - int val = 0; - - if (sscanf(buf, "%d", &val) != 1) - return -EINVAL; - - ioc->fwfault_debug = val; - printk(MPT2SAS_INFO_FMT "fwfault_debug=%d\n", ioc->name, - ioc->fwfault_debug); - return strlen(buf); -} -static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR, - _ctl_fwfault_debug_show, _ctl_fwfault_debug_store); - - -/** - * _ctl_ioc_reset_count_show - ioc reset count - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is firmware queue depth limit - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - return snprintf(buf, PAGE_SIZE, "%08d\n", ioc->ioc_reset_count); -} -static DEVICE_ATTR(ioc_reset_count, S_IRUGO, - _ctl_ioc_reset_count_show, NULL); - -/** - * _ctl_ioc_reply_queue_count_show - number of reply queues - * @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_ioc_reply_queue_count_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - u8 reply_queue_count; - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - if ((ioc->facts.IOCCapabilities & - MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable) - reply_queue_count = ioc->reply_queue_count; - else - reply_queue_count = 1; - return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count); -} -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 MPT2SAS_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) { - printk(MPT2SAS_ERR_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) { - printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"\ - "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz); - goto out; - } - - if (mpt2sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) != - 0) { - printk(MPT2SAS_ERR_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) { - printk(MPT2SAS_ERR_FMT "%s: iounit_pg3 failed with"\ - "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status); - goto out; - } - - if (io_unit_pg3->GPIOCount < 25) { - printk(MPT2SAS_ERR_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; - u8 BufferType; - u8 Reserved[3]; - __le32 Reserved1; - __le32 Reserved2; - __le32 Reserved3; -}; -/** - * _ctl_host_trace_buffer_size_show - host buffer size (trace only) - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_host_trace_buffer_size_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - u32 size = 0; - struct DIAG_BUFFER_START *request_data; - - if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) { - printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not " - "registered\n", ioc->name, __func__); - return 0; - } - - if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not " - "registered\n", ioc->name, __func__); - return 0; - } - - request_data = (struct DIAG_BUFFER_START *) - ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]; - if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 || - le32_to_cpu(request_data->DiagVersion) == 0x01000000) && - le32_to_cpu(request_data->Reserved3) == 0x4742444c) - size = le32_to_cpu(request_data->Size); - - ioc->ring_buffer_sz = size; - return snprintf(buf, PAGE_SIZE, "%d\n", size); -} -static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO, - _ctl_host_trace_buffer_size_show, NULL); - -/** - * _ctl_host_trace_buffer_show - firmware ring buffer (trace only) - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read/write' shost attribute. - * - * You will only be able to read 4k bytes of ring buffer at a time. - * In order to read beyond 4k bytes, you will have to write out the - * offset to the same attribute, it will move the pointer. - */ -static ssize_t -_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr, - char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - void *request_data; - u32 size; - - if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) { - printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not " - "registered\n", ioc->name, __func__); - return 0; - } - - if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) { - printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not " - "registered\n", ioc->name, __func__); - return 0; - } - - if (ioc->ring_buffer_offset > ioc->ring_buffer_sz) - return 0; - - size = ioc->ring_buffer_sz - ioc->ring_buffer_offset; - size = (size > PAGE_SIZE) ? PAGE_SIZE : size; - request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset; - memcpy(buf, request_data, size); - return size; -} - -static ssize_t -_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - int val = 0; - - if (sscanf(buf, "%d", &val) != 1) - return -EINVAL; - - ioc->ring_buffer_offset = val; - return strlen(buf); -} -static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR, - _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store); - -/*****************************************/ - -/** - * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only) - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * A sysfs 'read/write' shost attribute. - * - * This is a mechnism to post/release host_trace_buffers - */ -static ssize_t -_ctl_host_trace_buffer_enable_show(struct device *cdev, - struct device_attribute *attr, char *buf) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - - if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) || - ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0)) - return snprintf(buf, PAGE_SIZE, "off\n"); - else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_RELEASED)) - return snprintf(buf, PAGE_SIZE, "release\n"); - else - return snprintf(buf, PAGE_SIZE, "post\n"); -} - -static ssize_t -_ctl_host_trace_buffer_enable_store(struct device *cdev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct Scsi_Host *shost = class_to_shost(cdev); - struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); - char str[10] = ""; - struct mpt2_diag_register diag_register; - u8 issue_reset = 0; - - if (sscanf(buf, "%9s", str) != 1) - return -EINVAL; - - if (!strcmp(str, "post")) { - /* exit out if host buffers are already posted */ - if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) && - (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_REGISTERED) && - ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_RELEASED) == 0)) - goto out; - memset(&diag_register, 0, sizeof(struct mpt2_diag_register)); - printk(MPT2SAS_INFO_FMT "posting host trace buffers\n", - ioc->name); - diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE; - diag_register.requested_buffer_size = (1024 * 1024); - diag_register.unique_id = 0x7075900; - ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0; - _ctl_diag_register_2(ioc, &diag_register); - } else if (!strcmp(str, "release")) { - /* exit out if host buffers are already released */ - if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) - goto out; - if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) - goto out; - if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & - MPT2_DIAG_BUFFER_IS_RELEASED)) - goto out; - printk(MPT2SAS_INFO_FMT "releasing host trace buffer\n", - ioc->name); - _ctl_send_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE, &issue_reset); - } - - out: - return strlen(buf); -} -static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR, - _ctl_host_trace_buffer_enable_show, _ctl_host_trace_buffer_enable_store); - -struct device_attribute *mpt2sas_host_attrs[] = { - &dev_attr_version_fw, - &dev_attr_version_bios, - &dev_attr_version_mpi, - &dev_attr_version_product, - &dev_attr_version_nvdata_persistent, - &dev_attr_version_nvdata_default, - &dev_attr_board_name, - &dev_attr_board_assembly, - &dev_attr_board_tracer, - &dev_attr_io_delay, - &dev_attr_device_delay, - &dev_attr_logging_level, - &dev_attr_fwfault_debug, - &dev_attr_fw_queue_depth, - &dev_attr_host_sas_address, - &dev_attr_ioc_reset_count, - &dev_attr_host_trace_buffer_size, - &dev_attr_host_trace_buffer, - &dev_attr_host_trace_buffer_enable, - &dev_attr_reply_queue_count, - &dev_attr_BRM_status, - NULL, -}; - -/** - * _ctl_device_sas_address_show - sas address - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is the sas address for the target - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct scsi_device *sdev = to_scsi_device(dev); - struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; - - return snprintf(buf, PAGE_SIZE, "0x%016llx\n", - (unsigned long long)sas_device_priv_data->sas_target->sas_address); -} -static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL); - -/** - * _ctl_device_handle_show - device handle - * @cdev - pointer to embedded class device - * @buf - the buffer returned - * - * This is the firmware assigned device handle - * - * A sysfs 'read-only' shost attribute. - */ -static ssize_t -_ctl_device_handle_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct scsi_device *sdev = to_scsi_device(dev); - struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata; - - return snprintf(buf, PAGE_SIZE, "0x%04x\n", - sas_device_priv_data->sas_target->handle); -} -static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL); - -struct device_attribute *mpt2sas_dev_attrs[] = { - &dev_attr_sas_address, - &dev_attr_sas_device_handle, - NULL, -}; - -static const struct file_operations ctl_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = _ctl_ioctl, - .poll = _ctl_poll, - .fasync = _ctl_fasync, -#ifdef CONFIG_COMPAT - .compat_ioctl = _ctl_ioctl_compat, -#endif - .llseek = noop_llseek, -}; - -static struct miscdevice ctl_dev = { - .minor = MPT2SAS_MINOR, - .name = MPT2SAS_DEV_NAME, - .fops = &ctl_fops, -}; - -/** - * mpt2sas_ctl_init - main entry point for ctl. - * - */ -void -mpt2sas_ctl_init(void) -{ - async_queue = NULL; - if (misc_register(&ctl_dev) < 0) - printk(KERN_ERR "%s can't register misc device [minor=%d]\n", - MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR); - - init_waitqueue_head(&ctl_poll_wait); -} - -/** - * mpt2sas_ctl_exit - exit point for ctl - * - */ -void -mpt2sas_ctl_exit(void) -{ - struct MPT2SAS_ADAPTER *ioc; - int i; - - list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { - - /* free memory associated to diag buffers */ - for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) { - if (!ioc->diag_buffer[i]) - continue; - pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i], - ioc->diag_buffer[i], ioc->diag_buffer_dma[i]); - ioc->diag_buffer[i] = NULL; - ioc->diag_buffer_status[i] = 0; - } - - kfree(ioc->event_log); - } - misc_deregister(&ctl_dev); -} - |
