BLOCKING,
};
+/**
+ * _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;
+}
+
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _ctl_display_some_debug - debug routine
if (!desc)
return;
- printk(MPT2SAS_DEBUG_FMT "%s: %s, smid(%d)\n",
+ 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_DEBUG_FMT
+ 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));
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_DEBUG_FMT
+ printk(MPT2SAS_INFO_FMT
"\tscsi_state(0x%02x), scsi_status"
"(0x%02x)\n", ioc->name,
scsi_reply->SCSIState,
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 (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);
switch (reset_phase) {
case MPT2_IOC_PRE_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ 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] &
}
break;
case MPT2_IOC_AFTER_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ 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;
}
break;
case MPT2_IOC_DONE_RESET:
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ 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++) {
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
if (!found) {
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ 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;
return 1;
}
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ 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)));
_ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
struct mpt2_ioctl_command karg, void __user *mf, enum block_state state)
{
- MPI2RequestHeader_t *mpi_request;
+ MPI2RequestHeader_t *mpi_request = NULL, *request;
MPI2DefaultReply_t *mpi_reply;
u32 ioc_state;
u16 ioc_status;
u8 issue_reset;
u32 sz;
void *psge;
- void *priv_sense = NULL;
void *data_out = NULL;
dma_addr_t data_out_dma;
size_t data_out_sz = 0;
printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
ioc->name, __func__);
- 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;
+ 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;
}
- ret = 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;
- data_out_sz = karg.data_out_size;
- data_in_sz = karg.data_in_size;
-
/* 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;
- mpt2sas_base_free_smid(ioc, smid);
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) ||
}
/* add scatter gather elements */
- psge = (void *)mpi_request + (karg.data_sge_offset*4);
+ psge = (void *)request + (karg.data_sge_offset*4);
if (!data_out_sz && !data_in_sz) {
mpt2sas_base_build_zero_len_sge(ioc, psge);
case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
{
Mpi2SCSIIORequest_t *scsiio_request =
- (Mpi2SCSIIORequest_t *)mpi_request;
+ (Mpi2SCSIIORequest_t *)request;
+ scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
scsiio_request->SenseBufferLowAddress =
mpt2sas_base_get_sense_buffer_dma(ioc, smid);
- priv_sense = mpt2sas_base_get_sense_buffer(ioc, smid);
- memset(priv_sense, 0, SCSI_SENSE_BUFFERSIZE);
+ 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));
case MPI2_FUNCTION_SCSI_TASK_MGMT:
{
Mpi2SCSITaskManagementRequest_t *tm_request =
- (Mpi2SCSITaskManagementRequest_t *)mpi_request;
+ (Mpi2SCSITaskManagementRequest_t *)request;
- dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "TASK_MGMT: "
+ 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));
Mpi2SCSITaskManagementReply_t *tm_reply =
(Mpi2SCSITaskManagementReply_t *)mpi_reply;
- printk(MPT2SAS_DEBUG_FMT "TASK_MGMT: "
+ printk(MPT2SAS_INFO_FMT "TASK_MGMT: "
"IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
"TerminationCount(0x%08x)\n", ioc->name,
le16_to_cpu(tm_reply->IOCStatus),
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, priv_sense, sz)) {
+ 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;
pci_free_consistent(ioc->pdev, data_out_sz, data_out,
data_out_dma);
+ kfree(mpi_request);
ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
mutex_unlock(&ioc->ctl_cmds.mutex);
return ret;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));
memset(&karg, 0 , sizeof(karg));
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));
karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));
if (ioc->event_log)
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));
number_bytes = karg.hdr.max_data_size -
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: enter\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
__func__));
retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
rc = _ctl_btdh_search_sas_device(ioc, &karg);
u16 ioc_status;
u8 issue_reset = 0;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
mpi_request->VF_ID = 0; /* TODO */
mpi_request->VP_ID = 0;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(0x%p), "
+ 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)));
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
ioc->diag_buffer_status[buffer_type] |=
MPT2_DIAG_BUFFER_IS_REGISTERED;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
ioc->name, __func__));
} else {
- printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
+ 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;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
buffer_type = karg.unique_id & 0x000000ff;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
karg.application_flags = 0;
int rc;
unsigned long timeleft;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
rc = 0;
ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
"skipping due to FAULT state\n", ioc->name,
__func__));
rc = -EAGAIN;
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
ioc->diag_buffer_status[buffer_type] |=
MPT2_DIAG_BUFFER_IS_RELEASED;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
ioc->name, __func__));
} else {
- printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
+ 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;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
buffer_type = karg.unique_id & 0x000000ff;
if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s\n", ioc->name,
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
__func__));
buffer_type = karg.unique_id & 0x000000ff;
}
diag_data = (void *)(request_data + karg.starting_offset);
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(%p), "
+ 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));
if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0)
return 0;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: Reregister "
+ 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_DEBUG_FMT "%s: "
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
"buffer_type(0x%02x) is still registered\n", ioc->name,
__func__, buffer_type));
return 0;
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
ioc->diag_buffer_status[buffer_type] |=
MPT2_DIAG_BUFFER_IS_REGISTERED;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: success\n",
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
ioc->name, __func__));
} else {
- printk(MPT2SAS_DEBUG_FMT "%s: ioc_status(0x%04x) "
+ 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;
!ioc)
return -ENODEV;
- if (ioc->shost_recovery)
+ if (ioc->shost_recovery || ioc->pci_error_recovery)
return -EAGAIN;
if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) {
!ioc)
return -ENODEV;
- dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT
+ dctlprintk(ioc, printk(MPT2SAS_INFO_FMT
"unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
break;
}
if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc)
return -ENODEV;
- if (ioc->shost_recovery)
+ if (ioc->shost_recovery || ioc->pci_error_recovery)
return -EAGAIN;
memset(&karg, 0, sizeof(struct mpt2_ioctl_command));
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);
+
+struct DIAG_BUFFER_START {
+ u32 Size;
+ u32 DiagVersion;
+ u8 BufferType;
+ u8 Reserved[3];
+ u32 Reserved1;
+ u32 Reserved2;
+ u32 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, "%s", 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_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,
NULL,
};
projects / mv-sheeva.git / blobdiff