* 2 of the License, or (at your option) any later version.
*
* FILE : megaraid_mbox.c
- * Version : v2.20.4 (September 27 2004)
+ * Version : v2.20.4.5 (Feb 03 2005)
*
* Authors:
* Atul Mukker <Atul.Mukker@lsil.com>
* INTEL RAID Controller SROMBU42E 1000 0408 8086 3499
* INTEL RAID Controller SRCU51L 1000 1960 8086 0520
*
- *
* FSC MegaRAID PCI Express ROMB 1000 0408 1734 1065
*
- *
* ACER MegaRAID ROMB-2E 1000 0408 1025 004D
*
+ * NEC MegaRAID PCI Express ROMB 1000 0408 1033 8287
*
* For history of changes, see Documentation/ChangeLog.megaraid
*/
static int megaraid_mbox_setup_dma_pools(adapter_t *);
static void megaraid_mbox_teardown_dma_pools(adapter_t *);
+static int megaraid_sysfs_alloc_resources(adapter_t *);
+static void megaraid_sysfs_free_resources(adapter_t *);
+
static int megaraid_abort_handler(struct scsi_cmnd *);
static int megaraid_reset_handler(struct scsi_cmnd *);
static void megaraid_mbox_dpc(unsigned long);
+static ssize_t megaraid_sysfs_show_app_hndl(struct class_device *, char *);
+static ssize_t megaraid_sysfs_show_ldnum(struct device *, char *);
+
static int megaraid_cmm_register(adapter_t *);
static int megaraid_cmm_unregister(adapter_t *);
static int megaraid_mbox_mm_handler(unsigned long, uioc_t *, uint32_t);
* ### global data ###
*/
static uint8_t megaraid_mbox_version[8] =
- { 0x02, 0x20, 0x04, 0x00, 9, 27, 20, 4 };
+ { 0x02, 0x20, 0x04, 0x05, 2, 3, 20, 5 };
/*
PCI_VENDOR_ID_DELL,
PCI_SUBSYS_ID_PERC3_SC,
},
+ {
+ PCI_VENDOR_ID_AMI,
+ PCI_DEVICE_ID_AMI_MEGARAID3,
+ PCI_VENDOR_ID_AMI,
+ PCI_SUBSYS_ID_PERC3_SC,
+ },
+ {
+ PCI_VENDOR_ID_AMI,
+ PCI_DEVICE_ID_AMI_MEGARAID3,
+ PCI_VENDOR_ID_AMI,
+ PCI_SUBSYS_ID_PERC3_DC,
+ },
{
PCI_VENDOR_ID_LSI_LOGIC,
PCI_DEVICE_ID_MEGARAID_SCSI_320_0,
PCI_VENDOR_ID_AI,
PCI_SUBSYS_ID_MEGARAID_ACER_ROMB_2E,
},
+ {
+ PCI_VENDOR_ID_LSI_LOGIC,
+ PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E,
+ PCI_VENDOR_ID_NEC,
+ PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E,
+ },
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, pci_id_table_g);
};
+
+// definitions for the device attributes for exporting logical drive number
+// for a scsi address (Host, Channel, Id, Lun)
+
+CLASS_DEVICE_ATTR(megaraid_mbox_app_hndl, S_IRUSR, megaraid_sysfs_show_app_hndl,
+ NULL);
+
+// Host template initializer for megaraid mbox sysfs device attributes
+static struct class_device_attribute *megaraid_shost_attrs[] = {
+ &class_device_attr_megaraid_mbox_app_hndl,
+ NULL,
+};
+
+
+DEVICE_ATTR(megaraid_mbox_ld, S_IRUSR, megaraid_sysfs_show_ldnum, NULL);
+
+// Host template initializer for megaraid mbox sysfs device attributes
+static struct device_attribute *megaraid_sdev_attrs[] = {
+ &dev_attr_megaraid_mbox_ld,
+ NULL,
+};
+
+
/*
* Scsi host template for megaraid unified driver
*/
.eh_bus_reset_handler = megaraid_reset_handler,
.eh_host_reset_handler = megaraid_reset_handler,
.use_clustering = ENABLE_CLUSTERING,
+ .sdev_attrs = megaraid_sdev_attrs,
+ .shost_attrs = megaraid_shost_attrs,
};
goto out_free_raid_dev;
}
- raid_dev->baseaddr = (unsigned long)
- ioremap_nocache(raid_dev->baseport, 128);
+ raid_dev->baseaddr = ioremap_nocache(raid_dev->baseport, 128);
if (!raid_dev->baseaddr) {
}
adapter->device_ids[adapter->max_channel][adapter->init_id] =
0xFF;
+
+ raid_dev->random_del_supported = 1;
}
/*
*/
adapter->cmd_per_lun = megaraid_cmd_per_lun;
+ /*
+ * Allocate resources required to issue FW calls, when sysfs is
+ * accessed
+ */
+ if (megaraid_sysfs_alloc_resources(adapter) != 0) {
+ goto out_alloc_cmds;
+ }
+
// Set the DMA mask to 64-bit. All supported controllers as capable of
// DMA in this range
if (pci_set_dma_mask(adapter->pdev, 0xFFFFFFFFFFFFFFFFULL) != 0) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: could not set DMA mask for 64-bit.\n"));
- goto out_alloc_cmds;
+ goto out_free_sysfs_res;
}
// setup tasklet for DPC
return 0;
+out_free_sysfs_res:
+ megaraid_sysfs_free_resources(adapter);
out_alloc_cmds:
megaraid_free_cmd_packets(adapter);
out_free_irq:
free_irq(adapter->irq, adapter);
out_iounmap:
- iounmap((caddr_t)raid_dev->baseaddr);
+ iounmap(raid_dev->baseaddr);
out_release_regions:
pci_release_regions(pdev);
out_free_raid_dev:
tasklet_kill(&adapter->dpc_h);
+ megaraid_sysfs_free_resources(adapter);
+
megaraid_free_cmd_packets(adapter);
free_irq(adapter->irq, adapter);
- iounmap((caddr_t)raid_dev->baseaddr);
+ iounmap(raid_dev->baseaddr);
pci_release_regions(adapter->pdev);
if (scb->dma_direction == PCI_DMA_TODEVICE) {
if (!scb->scp->use_sg) { // sg list not used
- pci_dma_sync_single(adapter->pdev, ccb->buf_dma_h,
+ pci_dma_sync_single_for_device(adapter->pdev,
+ ccb->buf_dma_h,
scb->scp->request_bufflen,
PCI_DMA_TODEVICE);
}
else {
- pci_dma_sync_sg(adapter->pdev, scb->scp->request_buffer,
+ pci_dma_sync_sg_for_device(adapter->pdev,
+ scb->scp->request_buffer,
scb->scp->use_sg, PCI_DMA_TODEVICE);
}
}
scp->scsi_done = done;
scp->result = 0;
- ASSERT(spin_is_locked(adapter->host_lock));
+ assert_spin_locked(adapter->host_lock);
spin_unlock(adapter->host_lock);
if (!scb) { // command already completed
done(scp);
+ return 0;
}
return if_busy;
while (!list_empty(&adapter->pend_list)) {
- ASSERT(spin_is_locked(PENDING_LIST_LOCK(adapter)));
+ assert_spin_locked(PENDING_LIST_LOCK(adapter));
scb = list_entry(adapter->pend_list.next, scb_t, list);
channel = scb->dev_channel;
target = scb->dev_target;
- pthru->timeout = 1; // 0=6sec, 1=60sec, 2=10min, 3=3hrs
+ // 0=6sec, 1=60sec, 2=10min, 3=3hrs, 4=NO timeout
+ pthru->timeout = 4;
pthru->ars = 1;
pthru->islogical = 0;
pthru->channel = 0;
channel = scb->dev_channel;
target = scb->dev_target;
- epthru->timeout = 1; // 0=6sec, 1=60sec, 2=10min, 3=3hrs
+ // 0=6sec, 1=60sec, 2=10min, 3=3hrs, 4=NO timeout
+ epthru->timeout = 4;
epthru->ars = 1;
epthru->islogical = 0;
epthru->channel = 0;
case MRAID_DMA_WBUF:
if (scb->dma_direction == PCI_DMA_FROMDEVICE) {
- pci_dma_sync_single(adapter->pdev,
+ pci_dma_sync_single_for_cpu(adapter->pdev,
ccb->buf_dma_h,
scb->scp->request_bufflen,
PCI_DMA_FROMDEVICE);
case MRAID_DMA_WSG:
if (scb->dma_direction == PCI_DMA_FROMDEVICE) {
- pci_dma_sync_sg(adapter->pdev,
+ pci_dma_sync_sg_for_cpu(adapter->pdev,
scb->scp->request_buffer,
scb->scp->use_sg, PCI_DMA_FROMDEVICE);
}
adapter = SCP2ADAPTER(scp);
raid_dev = ADAP2RAIDDEV(adapter);
- ASSERT(spin_is_locked(adapter->host_lock));
+ assert_spin_locked(adapter->host_lock);
con_log(CL_ANN, (KERN_WARNING
"megaraid: aborting-%ld cmd=%x <c=%d t=%d l=%d>\n",
adapter = SCP2ADAPTER(scp);
raid_dev = ADAP2RAIDDEV(adapter);
- ASSERT(spin_is_locked(adapter->host_lock));
+ assert_spin_locked(adapter->host_lock);
con_log(CL_ANN, (KERN_WARNING "megaraid: reseting the host...\n"));
memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
raw_mbox[0] = FC_DEL_LOGDRV;
- raw_mbox[0] = OP_SUP_DEL_LOGDRV;
+ raw_mbox[2] = OP_SUP_DEL_LOGDRV;
// Issue the command
rval = 0;
adp.drvr_data = (unsigned long)adapter;
adp.pdev = adapter->pdev;
adp.issue_uioc = megaraid_mbox_mm_handler;
- adp.timeout = 30;
+ adp.timeout = 300;
adp.max_kioc = MBOX_MAX_USER_CMDS;
if ((rval = mraid_mm_register_adp(&adp)) != 0) {
spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
- scb->state = SCB_ACTIVE;
- scb->dma_type = MRAID_DMA_NONE;
+ scb->state = SCB_ACTIVE;
+ scb->dma_type = MRAID_DMA_NONE;
+ scb->dma_direction = PCI_DMA_NONE;
ccb = (mbox_ccb_t *)scb->ccb;
mbox64 = (mbox64_t *)(unsigned long)kioc->cmdbuf;
*/
+
+/**
+ * megaraid_sysfs_alloc_resources - allocate sysfs related resources
+ *
+ * Allocate packets required to issue FW calls whenever the sysfs attributes
+ * are read. These attributes would require up-to-date information from the
+ * FW. Also set up resources for mutual exclusion to share these resources and
+ * the wait queue.
+ *
+ * @param adapter : controller's soft state
+ *
+ * @return 0 on success
+ * @return -ERROR_CODE on failure
+ */
+static int
+megaraid_sysfs_alloc_resources(adapter_t *adapter)
+{
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+ int rval = 0;
+
+ raid_dev->sysfs_uioc = kmalloc(sizeof(uioc_t), GFP_KERNEL);
+
+ raid_dev->sysfs_mbox64 = kmalloc(sizeof(mbox64_t), GFP_KERNEL);
+
+ raid_dev->sysfs_buffer = pci_alloc_consistent(adapter->pdev,
+ PAGE_SIZE, &raid_dev->sysfs_buffer_dma);
+
+ if (!raid_dev->sysfs_uioc || !raid_dev->sysfs_mbox64 ||
+ !raid_dev->sysfs_buffer) {
+
+ con_log(CL_ANN, (KERN_WARNING
+ "megaraid: out of memory, %s %d\n", __FUNCTION__,
+ __LINE__));
+
+ rval = -ENOMEM;
+
+ megaraid_sysfs_free_resources(adapter);
+ }
+
+ sema_init(&raid_dev->sysfs_sem, 1);
+
+ init_waitqueue_head(&raid_dev->sysfs_wait_q);
+
+ return rval;
+}
+
+
+/**
+ * megaraid_sysfs_free_resources - free sysfs related resources
+ *
+ * Free packets allocated for sysfs FW commands
+ *
+ * @param adapter : controller's soft state
+ */
+static void
+megaraid_sysfs_free_resources(adapter_t *adapter)
+{
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+
+ if (raid_dev->sysfs_uioc) kfree(raid_dev->sysfs_uioc);
+
+ if (raid_dev->sysfs_mbox64) kfree(raid_dev->sysfs_mbox64);
+
+ if (raid_dev->sysfs_buffer) {
+ pci_free_consistent(adapter->pdev, PAGE_SIZE,
+ raid_dev->sysfs_buffer, raid_dev->sysfs_buffer_dma);
+ }
+}
+
+
+/**
+ * megaraid_sysfs_get_ldmap_done - callback for get ldmap
+ *
+ * Callback routine called in the ISR/tasklet context for get ldmap call
+ *
+ * @param uioc : completed packet
+ */
+static void
+megaraid_sysfs_get_ldmap_done(uioc_t *uioc)
+{
+ adapter_t *adapter = (adapter_t *)uioc->buf_vaddr;
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+
+ uioc->status = 0;
+
+ wake_up(&raid_dev->sysfs_wait_q);
+}
+
+
+/**
+ * megaraid_sysfs_get_ldmap_timeout - timeout handling for get ldmap
+ *
+ * Timeout routine to recover and return to application, in case the adapter
+ * has stopped responding. A timeout of 60 seconds for this command seem like
+ * a good value
+ *
+ * @param uioc : timed out packet
+ */
+static void
+megaraid_sysfs_get_ldmap_timeout(unsigned long data)
+{
+ uioc_t *uioc = (uioc_t *)data;
+ adapter_t *adapter = (adapter_t *)uioc->buf_vaddr;
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+
+ uioc->status = -ETIME;
+
+ wake_up(&raid_dev->sysfs_wait_q);
+}
+
+
+/**
+ * megaraid_sysfs_get_ldmap - get update logical drive map
+ *
+ * This routine will be called whenever user reads the logical drive
+ * attributes, go get the current logical drive mapping table from the
+ * firmware. We use the managment API's to issue commands to the controller.
+ *
+ * NOTE: The commands issuance functionality is not generalized and
+ * implemented in context of "get ld map" command only. If required, the
+ * command issuance logical can be trivially pulled out and implemented as a
+ * standalone libary. For now, this should suffice since there is no other
+ * user of this interface.
+ *
+ * @param adapter : controller's soft state
+ *
+ * @return 0 on success
+ * @return -1 on failure
+ */
+static int
+megaraid_sysfs_get_ldmap(adapter_t *adapter)
+{
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+ uioc_t *uioc;
+ mbox64_t *mbox64;
+ mbox_t *mbox;
+ char *raw_mbox;
+ struct timer_list sysfs_timer;
+ struct timer_list *timerp;
+ caddr_t ldmap;
+ int rval = 0;
+
+ /*
+ * Allow only one read at a time to go through the sysfs attributes
+ */
+ down(&raid_dev->sysfs_sem);
+
+ uioc = raid_dev->sysfs_uioc;
+ mbox64 = raid_dev->sysfs_mbox64;
+ ldmap = raid_dev->sysfs_buffer;
+
+ memset(uioc, 0, sizeof(uioc_t));
+ memset(mbox64, 0, sizeof(mbox64_t));
+ memset(ldmap, 0, sizeof(raid_dev->curr_ldmap));
+
+ mbox = &mbox64->mbox32;
+ raw_mbox = (char *)mbox;
+ uioc->cmdbuf = (uint64_t)(unsigned long)mbox64;
+ uioc->buf_vaddr = (caddr_t)adapter;
+ uioc->status = -ENODATA;
+ uioc->done = megaraid_sysfs_get_ldmap_done;
+
+ /*
+ * Prepare the mailbox packet to get the current logical drive mapping
+ * table
+ */
+ mbox->xferaddr = (uint32_t)raid_dev->sysfs_buffer_dma;
+
+ raw_mbox[0] = FC_DEL_LOGDRV;
+ raw_mbox[2] = OP_GET_LDID_MAP;
+
+ /*
+ * Setup a timer to recover from a non-responding controller
+ */
+ timerp = &sysfs_timer;
+ init_timer(timerp);
+
+ timerp->function = megaraid_sysfs_get_ldmap_timeout;
+ timerp->data = (unsigned long)uioc;
+ timerp->expires = jiffies + 60 * HZ;
+
+ add_timer(timerp);
+
+ /*
+ * Send the command to the firmware
+ */
+ rval = megaraid_mbox_mm_command(adapter, uioc);
+
+ if (rval == 0) { // command successfully issued
+ wait_event(raid_dev->sysfs_wait_q, (uioc->status != -ENODATA));
+
+ /*
+ * Check if the command timed out
+ */
+ if (uioc->status == -ETIME) {
+ con_log(CL_ANN, (KERN_NOTICE
+ "megaraid: sysfs get ld map timed out\n"));
+
+ rval = -ETIME;
+ }
+ else {
+ rval = mbox->status;
+ }
+
+ if (rval == 0) {
+ memcpy(raid_dev->curr_ldmap, ldmap,
+ sizeof(raid_dev->curr_ldmap));
+ }
+ else {
+ con_log(CL_ANN, (KERN_NOTICE
+ "megaraid: get ld map failed with %x\n", rval));
+ }
+ }
+ else {
+ con_log(CL_ANN, (KERN_NOTICE
+ "megaraid: could not issue ldmap command:%x\n", rval));
+ }
+
+
+ del_timer_sync(timerp);
+
+ up(&raid_dev->sysfs_sem);
+
+ return rval;
+}
+
+
+/**
+ * megaraid_sysfs_show_app_hndl - display application handle for this adapter
+ *
+ * Display the handle used by the applications while executing management
+ * tasks on the adapter. We invoke a management module API to get the adapter
+ * handle, since we do not interface with applications directly.
+ *
+ * @param cdev : class device object representation for the host
+ * @param buf : buffer to send data to
+ */
+static ssize_t
+megaraid_sysfs_show_app_hndl(struct class_device *cdev, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(shost);
+ uint32_t app_hndl;
+
+ app_hndl = mraid_mm_adapter_app_handle(adapter->unique_id);
+
+ return snprintf(buf, 8, "%u\n", app_hndl);
+}
+
+
+/**
+ * megaraid_sysfs_show_ldnum - display the logical drive number for this device
+ *
+ * Display the logical drive number for the device in question, if it a valid
+ * logical drive. For physical devices, "-1" is returned
+ * The logical drive number is displayed in following format
+ *
+ * <SCSI ID> <LD NUM> <LD STICKY ID> <APP ADAPTER HANDLE>
+ * <int> <int> <int> <int>
+ *
+ * @param dev : device object representation for the scsi device
+ * @param buf : buffer to send data to
+ */
+static ssize_t
+megaraid_sysfs_show_ldnum(struct device *dev, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(sdev->host);
+ mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
+ int scsi_id = -1;
+ int logical_drv = -1;
+ int ldid_map = -1;
+ uint32_t app_hndl = 0;
+ int mapped_sdev_id;
+ int rval;
+ int i;
+
+ if (raid_dev->random_del_supported &&
+ MRAID_IS_LOGICAL_SDEV(adapter, sdev)) {
+
+ rval = megaraid_sysfs_get_ldmap(adapter);
+ if (rval == 0) {
+
+ for (i = 0; i < MAX_LOGICAL_DRIVES_40LD; i++) {
+
+ mapped_sdev_id = sdev->id;
+
+ if (sdev->id > adapter->init_id) {
+ mapped_sdev_id -= 1;
+ }
+
+ if (raid_dev->curr_ldmap[i] == mapped_sdev_id) {
+
+ scsi_id = sdev->id;
+
+ logical_drv = i;
+
+ ldid_map = raid_dev->curr_ldmap[i];
+
+ app_hndl = mraid_mm_adapter_app_handle(
+ adapter->unique_id);
+
+ break;
+ }
+ }
+ }
+ else {
+ con_log(CL_ANN, (KERN_NOTICE
+ "megaraid: sysfs get ld map failed: %x\n",
+ rval));
+ }
+ }
+
+ return snprintf(buf, 36, "%d %d %d %d\n", scsi_id, logical_drv,
+ ldid_map, app_hndl);
+}
+
+
/*
* END: Mailbox Low Level Driver
*/
git://git.onelab.eu / linux-2.6.git / blobdiff