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_app_hndl(struct device *, struct device_attribute *attr, char *);
static ssize_t megaraid_sysfs_show_ldnum(struct device *, struct device_attribute *attr, char *);
static int megaraid_cmm_register(adapter_t *);
MODULE_DEVICE_TABLE(pci, pci_id_table_g);
-static struct pci_driver megaraid_pci_driver_g = {
+static struct pci_driver megaraid_pci_driver = {
.name = "megaraid",
.id_table = pci_id_table_g,
.probe = megaraid_probe_one,
// 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,
+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,
+static struct device_attribute *megaraid_shost_attrs[] = {
+ &dev_attr_megaraid_mbox_app_hndl,
NULL,
};
// register as a PCI hot-plug driver module
- rval = pci_register_driver(&megaraid_pci_driver_g);
+ rval = pci_register_driver(&megaraid_pci_driver);
if (rval < 0) {
con_log(CL_ANN, (KERN_WARNING
"megaraid: could not register hotplug support.\n"));
con_log(CL_DLEVEL1, (KERN_NOTICE "megaraid: unloading framework\n"));
// unregister as PCI hotplug driver
- pci_unregister_driver(&megaraid_pci_driver_g);
+ pci_unregister_driver(&megaraid_pci_driver);
return;
}
* @id : pci device id of the class of controllers
*
* This routine should be called whenever a new adapter is detected by the
- * PCI hotplug susbsytem.
+ * PCI hotplug susbsystem.
*/
static int __devinit
megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
pci_set_master(pdev);
// Allocate the per driver initialization structure
- adapter = kmalloc(sizeof(adapter_t), GFP_KERNEL);
+ adapter = kzalloc(sizeof(adapter_t), GFP_KERNEL);
if (adapter == NULL) {
con_log(CL_ANN, (KERN_WARNING
goto out_probe_one;
}
- memset(adapter, 0, sizeof(adapter_t));
// set up PCI related soft state and other pre-known parameters
* Allocate and initialize the init data structure for mailbox
* controllers
*/
- raid_dev = kmalloc(sizeof(mraid_device_t), GFP_KERNEL);
+ raid_dev = kzalloc(sizeof(mraid_device_t), GFP_KERNEL);
if (raid_dev == NULL) return -1;
- memset(raid_dev, 0, sizeof(mraid_device_t));
/*
* Attach the adapter soft state to raid device soft state
* since the calling routine does not yet know the number of available
* commands.
*/
- adapter->kscb_list = kmalloc(sizeof(scb_t) * MBOX_MAX_SCSI_CMDS,
- GFP_KERNEL);
+ adapter->kscb_list = kcalloc(MBOX_MAX_SCSI_CMDS, sizeof(scb_t), GFP_KERNEL);
if (adapter->kscb_list == NULL) {
con_log(CL_ANN, (KERN_WARNING
__LINE__));
goto out_free_ibuf;
}
- memset(adapter->kscb_list, 0, sizeof(scb_t) * MBOX_MAX_SCSI_CMDS);
// memory allocation for our command packets
if (megaraid_mbox_setup_dma_pools(adapter) != 0) {
{
struct scatterlist *sgl;
mbox_ccb_t *ccb;
- struct page *page;
- unsigned long offset;
struct scsi_cmnd *scp;
int sgcnt;
int i;
scp = scb->scp;
ccb = (mbox_ccb_t *)scb->ccb;
+ sgcnt = scsi_dma_map(scp);
+ BUG_ON(sgcnt < 0 || sgcnt > adapter->sglen);
+
// no mapping required if no data to be transferred
- if (!scp->request_buffer || !scp->request_bufflen)
+ if (!sgcnt)
return 0;
- if (!scp->use_sg) { /* scatter-gather list not used */
-
- page = virt_to_page(scp->request_buffer);
-
- offset = ((unsigned long)scp->request_buffer & ~PAGE_MASK);
-
- ccb->buf_dma_h = pci_map_page(adapter->pdev, page, offset,
- scp->request_bufflen,
- scb->dma_direction);
- scb->dma_type = MRAID_DMA_WBUF;
-
- /*
- * We need to handle special 64-bit commands that need a
- * minimum of 1 SG
- */
- sgcnt = 1;
- ccb->sgl64[0].address = ccb->buf_dma_h;
- ccb->sgl64[0].length = scp->request_bufflen;
-
- return sgcnt;
- }
-
- sgl = (struct scatterlist *)scp->request_buffer;
-
- // The number of sg elements returned must not exceed our limit
- sgcnt = pci_map_sg(adapter->pdev, sgl, scp->use_sg,
- scb->dma_direction);
-
- if (sgcnt > adapter->sglen) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid critical: too many sg elements:%d\n",
- sgcnt));
- BUG();
- }
-
scb->dma_type = MRAID_DMA_WSG;
- for (i = 0; i < sgcnt; i++, sgl++) {
+ scsi_for_each_sg(scp, sgl, sgcnt, i) {
ccb->sgl64[i].address = sg_dma_address(sgl);
ccb->sgl64[i].length = sg_dma_len(sgl);
}
adapter->outstanding_cmds++;
- if (scb->dma_direction == PCI_DMA_TODEVICE) {
- if (!scb->scp->use_sg) { // sg list not used
- pci_dma_sync_single_for_device(adapter->pdev,
- ccb->buf_dma_h,
- scb->scp->request_bufflen,
- PCI_DMA_TODEVICE);
- }
- else {
- pci_dma_sync_sg_for_device(adapter->pdev,
- scb->scp->request_buffer,
- scb->scp->use_sg, PCI_DMA_TODEVICE);
- }
- }
+ if (scb->dma_direction == PCI_DMA_TODEVICE)
+ pci_dma_sync_sg_for_device(adapter->pdev,
+ scsi_sglist(scb->scp),
+ scsi_sg_count(scb->scp),
+ PCI_DMA_TODEVICE);
mbox->busy = 1; // Set busy
mbox->poll = 0;
return scb;
case MODE_SENSE:
- if (scp->use_sg) {
- struct scatterlist *sgl;
- caddr_t vaddr;
+ {
+ struct scatterlist *sgl;
+ caddr_t vaddr;
- sgl = (struct scatterlist *)scp->request_buffer;
- if (sgl->page) {
- vaddr = (caddr_t)
- (page_address((&sgl[0])->page)
- + (&sgl[0])->offset);
+ sgl = scsi_sglist(scp);
+ if (sg_page(sgl)) {
+ vaddr = (caddr_t) sg_virt(&sgl[0]);
- memset(vaddr, 0, scp->cmnd[4]);
- }
- else {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mailbox: invalid sg:%d\n",
- __LINE__));
- }
+ memset(vaddr, 0, scp->cmnd[4]);
}
else {
- memset(scp->request_buffer, 0, scp->cmnd[4]);
+ con_log(CL_ANN, (KERN_WARNING
+ "megaraid mailbox: invalid sg:%d\n",
+ __LINE__));
}
- scp->result = (DID_OK << 16);
- return NULL;
+ }
+ scp->result = (DID_OK << 16);
+ return NULL;
case INQUIRY:
/*
mbox->cmd = MBOXCMD_PASSTHRU64;
scb->dma_direction = scp->sc_data_direction;
- pthru->dataxferlen = scp->request_bufflen;
+ pthru->dataxferlen = scsi_bufflen(scp);
pthru->dataxferaddr = ccb->sgl_dma_h;
pthru->numsge = megaraid_mbox_mksgl(adapter,
scb);
memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
- if (scp->request_bufflen) {
- pthru->dataxferlen = scp->request_bufflen;
+ if (scsi_bufflen(scp)) {
+ pthru->dataxferlen = scsi_bufflen(scp);
pthru->dataxferaddr = ccb->sgl_dma_h;
pthru->numsge = megaraid_mbox_mksgl(adapter, scb);
}
memcpy(epthru->cdb, scp->cmnd, scp->cmd_len);
- if (scp->request_bufflen) {
- epthru->dataxferlen = scp->request_bufflen;
+ if (scsi_bufflen(scp)) {
+ epthru->dataxferlen = scsi_bufflen(scp);
epthru->dataxferaddr = ccb->sgl_dma_h;
epthru->numsge = megaraid_mbox_mksgl(adapter, scb);
}
ccb = (mbox_ccb_t *)scb->ccb;
- switch (scb->dma_type) {
-
- case MRAID_DMA_WBUF:
- if (scb->dma_direction == PCI_DMA_FROMDEVICE) {
- pci_dma_sync_single_for_cpu(adapter->pdev,
- ccb->buf_dma_h,
- scb->scp->request_bufflen,
+ if (scb->dma_direction == PCI_DMA_FROMDEVICE)
+ pci_dma_sync_sg_for_cpu(adapter->pdev,
+ scsi_sglist(scb->scp),
+ scsi_sg_count(scb->scp),
PCI_DMA_FROMDEVICE);
- }
-
- pci_unmap_page(adapter->pdev, ccb->buf_dma_h,
- scb->scp->request_bufflen, scb->dma_direction);
-
- break;
-
- case MRAID_DMA_WSG:
- if (scb->dma_direction == PCI_DMA_FROMDEVICE) {
- pci_dma_sync_sg_for_cpu(adapter->pdev,
- scb->scp->request_buffer,
- scb->scp->use_sg, PCI_DMA_FROMDEVICE);
- }
-
- pci_unmap_sg(adapter->pdev, scb->scp->request_buffer,
- scb->scp->use_sg, scb->dma_direction);
-
- break;
-
- default:
- break;
- }
+ scsi_dma_unmap(scb->scp);
return;
}
if (scp->cmnd[0] == INQUIRY && status == 0 && islogical == 0
&& IS_RAID_CH(raid_dev, scb->dev_channel)) {
- if (scp->use_sg) {
- sgl = (struct scatterlist *)
- scp->request_buffer;
-
- if (sgl->page) {
- c = *(unsigned char *)
- (page_address((&sgl[0])->page) +
- (&sgl[0])->offset);
- }
- else {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mailbox: invalid sg:%d\n",
- __LINE__));
- c = 0;
- }
- }
- else {
- c = *(uint8_t *)scp->request_buffer;
+ sgl = scsi_sglist(scp);
+ if (sg_page(sgl)) {
+ c = *(unsigned char *) sg_virt(&sgl[0]);
+ } else {
+ con_log(CL_ANN, (KERN_WARNING
+ "megaraid mailbox: invalid sg:%d\n",
+ __LINE__));
+ c = 0;
}
if ((c & 0x1F ) == TYPE_DISK) {
uint8_t raw_mbox[sizeof(mbox_t)];
int rval;
+ /*
+ * Newer firmware on Dell CERC expect a different
+ * random deletion handling, so disable it.
+ */
+ if (adapter->pdev->vendor == PCI_VENDOR_ID_AMI &&
+ adapter->pdev->device == PCI_DEVICE_ID_AMI_MEGARAID3 &&
+ adapter->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
+ adapter->pdev->subsystem_device == PCI_SUBSYS_ID_CERC_ATA100_4CH &&
+ (adapter->fw_version[0] > '6' ||
+ (adapter->fw_version[0] == '6' &&
+ adapter->fw_version[2] > '6') ||
+ (adapter->fw_version[0] == '6'
+ && adapter->fw_version[2] == '6'
+ && adapter->fw_version[3] > '1'))) {
+ con_log(CL_DLEVEL1, ("megaraid: disable random deletion\n"));
+ return 0;
+ }
mbox = (mbox_t *)raw_mbox;
/*
* START: Interface for the common management module
*
- * This is the module, which interfaces with the common mangement module to
+ * This is the module, which interfaces with the common management module to
* provide support for ioctl and sysfs
*/
/**
- * megaraid_cmm_register - register with the mangement module
+ * megaraid_cmm_register - register with the management module
* @adapter : HBA soft state
*
* Register with the management module, which allows applications to issue
int i;
// Allocate memory for the base list of scb for management module.
- adapter->uscb_list = kmalloc(sizeof(scb_t) * MBOX_MAX_USER_CMDS,
- GFP_KERNEL);
+ adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL);
if (adapter->uscb_list == NULL) {
con_log(CL_ANN, (KERN_WARNING
__LINE__));
return -1;
}
- memset(adapter->uscb_list, 0, sizeof(scb_t) * MBOX_MAX_USER_CMDS);
// Initialize the synchronization parameters for resources for
/**
- * megaraid_cmm_unregister - un-register with the mangement module
+ * megaraid_cmm_unregister - un-register with the management module
* @adapter : HBA soft state
*
* Un-register with the management module.
* @kioc : CMM interface packet
* @action : command action
*
- * This routine is invoked whenever the Common Mangement Module (CMM) has a
+ * This routine is invoked whenever the Common Management Module (CMM) has a
* command for us. The 'action' parameter specifies if this is a new command
* or otherwise.
*/
megaraid_sysfs_free_resources(adapter);
}
- sema_init(&raid_dev->sysfs_sem, 1);
+ mutex_init(&raid_dev->sysfs_mtx);
init_waitqueue_head(&raid_dev->sysfs_wait_q);
*
* 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.
+ * firmware. We use the management 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
/*
* Allow only one read at a time to go through the sysfs attributes
*/
- down(&raid_dev->sysfs_sem);
+ mutex_lock(&raid_dev->sysfs_mtx);
uioc = raid_dev->sysfs_uioc;
mbox64 = raid_dev->sysfs_mbox64;
del_timer_sync(timerp);
- up(&raid_dev->sysfs_sem);
+ mutex_unlock(&raid_dev->sysfs_mtx);
return rval;
}
* handle, since we do not interface with applications directly.
*/
static ssize_t
-megaraid_sysfs_show_app_hndl(struct class_device *cdev, char *buf)
+megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct Scsi_Host *shost = class_to_shost(cdev);
+ struct Scsi_Host *shost = class_to_shost(dev);
adapter_t *adapter = (adapter_t *)SCSIHOST2ADAP(shost);
uint32_t app_hndl;