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- #include <linux/slab.h>
- #include <linux/module.h>
- #include "megaraid_mbox.h"
- static int megaraid_init(void);
- static void megaraid_exit(void);
- static int megaraid_probe_one(struct pci_dev*, const struct pci_device_id *);
- static void megaraid_detach_one(struct pci_dev *);
- static void megaraid_mbox_shutdown(struct pci_dev *);
- static int megaraid_io_attach(adapter_t *);
- static void megaraid_io_detach(adapter_t *);
- static int megaraid_init_mbox(adapter_t *);
- static void megaraid_fini_mbox(adapter_t *);
- static int megaraid_alloc_cmd_packets(adapter_t *);
- static void megaraid_free_cmd_packets(adapter_t *);
- 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 int mbox_post_sync_cmd(adapter_t *, uint8_t []);
- static int mbox_post_sync_cmd_fast(adapter_t *, uint8_t []);
- static int megaraid_busywait_mbox(mraid_device_t *);
- static int megaraid_mbox_product_info(adapter_t *);
- static int megaraid_mbox_extended_cdb(adapter_t *);
- static int megaraid_mbox_support_ha(adapter_t *, uint16_t *);
- static int megaraid_mbox_support_random_del(adapter_t *);
- static int megaraid_mbox_get_max_sg(adapter_t *);
- static void megaraid_mbox_enum_raid_scsi(adapter_t *);
- static void megaraid_mbox_flush_cache(adapter_t *);
- static int megaraid_mbox_fire_sync_cmd(adapter_t *);
- static void megaraid_mbox_display_scb(adapter_t *, scb_t *);
- static void megaraid_mbox_setup_device_map(adapter_t *);
- static int megaraid_queue_command(struct Scsi_Host *, struct scsi_cmnd *);
- static scb_t *megaraid_mbox_build_cmd(adapter_t *, struct scsi_cmnd *, int *);
- static void megaraid_mbox_runpendq(adapter_t *, scb_t *);
- static void megaraid_mbox_prepare_pthru(adapter_t *, scb_t *,
- struct scsi_cmnd *);
- static void megaraid_mbox_prepare_epthru(adapter_t *, scb_t *,
- struct scsi_cmnd *);
- static irqreturn_t megaraid_isr(int, void *);
- static void megaraid_mbox_dpc(unsigned long);
- 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 *);
- static int megaraid_cmm_unregister(adapter_t *);
- static int megaraid_mbox_mm_handler(unsigned long, uioc_t *, uint32_t);
- static int megaraid_mbox_mm_command(adapter_t *, uioc_t *);
- static void megaraid_mbox_mm_done(adapter_t *, scb_t *);
- static int gather_hbainfo(adapter_t *, mraid_hba_info_t *);
- static int wait_till_fw_empty(adapter_t *);
- MODULE_AUTHOR("megaraidlinux@lsi.com");
- MODULE_DESCRIPTION("LSI Logic MegaRAID Mailbox Driver");
- MODULE_LICENSE("GPL");
- MODULE_VERSION(MEGARAID_VERSION);
- static int megaraid_expose_unconf_disks = 0;
- module_param_named(unconf_disks, megaraid_expose_unconf_disks, int, 0);
- MODULE_PARM_DESC(unconf_disks,
- "Set to expose unconfigured disks to kernel (default=0)");
- static unsigned int max_mbox_busy_wait = MBOX_BUSY_WAIT;
- module_param_named(busy_wait, max_mbox_busy_wait, int, 0);
- MODULE_PARM_DESC(busy_wait,
- "Max wait for mailbox in microseconds if busy (default=10)");
- static unsigned int megaraid_max_sectors = MBOX_MAX_SECTORS;
- module_param_named(max_sectors, megaraid_max_sectors, int, 0);
- MODULE_PARM_DESC(max_sectors,
- "Maximum number of sectors per IO command (default=128)");
- static unsigned int megaraid_cmd_per_lun = MBOX_DEF_CMD_PER_LUN;
- module_param_named(cmd_per_lun, megaraid_cmd_per_lun, int, 0);
- MODULE_PARM_DESC(cmd_per_lun,
- "Maximum number of commands per logical unit (default=64)");
- static unsigned int megaraid_fast_load = 0;
- module_param_named(fast_load, megaraid_fast_load, int, 0);
- MODULE_PARM_DESC(fast_load,
- "Faster loading of the driver, skips physical devices! (default=0)");
- int mraid_debug_level = CL_ANN;
- module_param_named(debug_level, mraid_debug_level, int, 0);
- MODULE_PARM_DESC(debug_level, "Debug level for driver (default=0)");
- static uint8_t megaraid_mbox_version[8] =
- { 0x02, 0x20, 0x04, 0x06, 3, 7, 20, 5 };
- static struct pci_device_id pci_id_table_g[] = {
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4_DI_DISCOVERY,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4_DI_DISCOVERY,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_PERC4_SC,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4_SC,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_PERC4_DC,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4_DC,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_VERDE,
- PCI_ANY_ID,
- PCI_ANY_ID,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4_DI_EVERGLADES,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4_DI_EVERGLADES,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4E_SI_BIGBEND,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4E_SI_BIGBEND,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4E_DI_KOBUK,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4E_DI_KOBUK,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4E_DI_CORVETTE,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4E_DI_CORVETTE,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4E_DI_EXPEDITION,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4E_DI_EXPEDITION,
- },
- {
- PCI_VENDOR_ID_DELL,
- PCI_DEVICE_ID_PERC4E_DI_GUADALUPE,
- PCI_VENDOR_ID_DELL,
- PCI_SUBSYS_ID_PERC4E_DI_GUADALUPE,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_DOBSON,
- PCI_ANY_ID,
- PCI_ANY_ID,
- },
- {
- PCI_VENDOR_ID_AMI,
- PCI_DEVICE_ID_AMI_MEGARAID3,
- PCI_ANY_ID,
- PCI_ANY_ID,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_AMI_MEGARAID3,
- PCI_ANY_ID,
- PCI_ANY_ID,
- },
- {
- PCI_VENDOR_ID_LSI_LOGIC,
- PCI_DEVICE_ID_LINDSAY,
- PCI_ANY_ID,
- PCI_ANY_ID,
- },
- {0}
- };
- MODULE_DEVICE_TABLE(pci, pci_id_table_g);
- static struct pci_driver megaraid_pci_driver = {
- .name = "megaraid",
- .id_table = pci_id_table_g,
- .probe = megaraid_probe_one,
- .remove = megaraid_detach_one,
- .shutdown = megaraid_mbox_shutdown,
- };
- DEVICE_ATTR(megaraid_mbox_app_hndl, S_IRUSR, megaraid_sysfs_show_app_hndl,
- NULL);
- static struct device_attribute *megaraid_shost_attrs[] = {
- &dev_attr_megaraid_mbox_app_hndl,
- NULL,
- };
- DEVICE_ATTR(megaraid_mbox_ld, S_IRUSR, megaraid_sysfs_show_ldnum, NULL);
- static struct device_attribute *megaraid_sdev_attrs[] = {
- &dev_attr_megaraid_mbox_ld,
- NULL,
- };
- static struct scsi_host_template megaraid_template_g = {
- .module = THIS_MODULE,
- .name = "LSI Logic MegaRAID driver",
- .proc_name = "megaraid",
- .queuecommand = megaraid_queue_command,
- .eh_abort_handler = megaraid_abort_handler,
- .eh_device_reset_handler = megaraid_reset_handler,
- .eh_bus_reset_handler = megaraid_reset_handler,
- .eh_host_reset_handler = megaraid_reset_handler,
- .change_queue_depth = scsi_change_queue_depth,
- .use_clustering = ENABLE_CLUSTERING,
- .no_write_same = 1,
- .sdev_attrs = megaraid_sdev_attrs,
- .shost_attrs = megaraid_shost_attrs,
- };
- static int __init
- megaraid_init(void)
- {
- int rval;
-
- con_log(CL_ANN, (KERN_INFO "megaraid: %s %s\n", MEGARAID_VERSION,
- MEGARAID_EXT_VERSION));
-
- if (megaraid_cmd_per_lun > MBOX_MAX_SCSI_CMDS) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mailbox: max commands per lun reset to %d\n",
- MBOX_MAX_SCSI_CMDS));
- megaraid_cmd_per_lun = MBOX_MAX_SCSI_CMDS;
- }
-
- rval = pci_register_driver(&megaraid_pci_driver);
- if (rval < 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: could not register hotplug support.\n"));
- }
- return rval;
- }
- static void __exit
- megaraid_exit(void)
- {
- con_log(CL_DLEVEL1, (KERN_NOTICE "megaraid: unloading framework\n"));
-
- pci_unregister_driver(&megaraid_pci_driver);
- return;
- }
- static int
- megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
- {
- adapter_t *adapter;
-
- con_log(CL_ANN, (KERN_INFO
- "megaraid: probe new device %#4.04x:%#4.04x:%#4.04x:%#4.04x: ",
- pdev->vendor, pdev->device, pdev->subsystem_vendor,
- pdev->subsystem_device));
- con_log(CL_ANN, ("bus %d:slot %d:func %d\n", pdev->bus->number,
- PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)));
- if (pci_enable_device(pdev)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: pci_enable_device failed\n"));
- return -ENODEV;
- }
-
- pci_set_master(pdev);
-
- adapter = kzalloc(sizeof(adapter_t), GFP_KERNEL);
- if (adapter == NULL) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d.\n", __func__, __LINE__));
- goto out_probe_one;
- }
-
- adapter->unique_id = pdev->bus->number << 8 | pdev->devfn;
- adapter->irq = pdev->irq;
- adapter->pdev = pdev;
- atomic_set(&adapter->being_detached, 0);
-
-
- if (pci_set_dma_mask(adapter->pdev, DMA_BIT_MASK(32)) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: pci_set_dma_mask failed:%d\n", __LINE__));
- goto out_free_adapter;
- }
-
- spin_lock_init(&adapter->lock);
-
-
- INIT_LIST_HEAD(&adapter->kscb_pool);
- spin_lock_init(SCSI_FREE_LIST_LOCK(adapter));
- INIT_LIST_HEAD(&adapter->pend_list);
- spin_lock_init(PENDING_LIST_LOCK(adapter));
- INIT_LIST_HEAD(&adapter->completed_list);
- spin_lock_init(COMPLETED_LIST_LOCK(adapter));
-
- if (megaraid_init_mbox(adapter) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: maibox adapter did not initialize\n"));
- goto out_free_adapter;
- }
-
- if (megaraid_cmm_register(adapter) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: could not register with management module\n"));
- goto out_fini_mbox;
- }
-
- pci_set_drvdata(pdev, adapter);
-
- if (megaraid_io_attach(adapter) != 0) {
- con_log(CL_ANN, (KERN_WARNING "megaraid: io attach failed\n"));
- goto out_cmm_unreg;
- }
- return 0;
- out_cmm_unreg:
- megaraid_cmm_unregister(adapter);
- out_fini_mbox:
- megaraid_fini_mbox(adapter);
- out_free_adapter:
- kfree(adapter);
- out_probe_one:
- pci_disable_device(pdev);
- return -ENODEV;
- }
- static void
- megaraid_detach_one(struct pci_dev *pdev)
- {
- adapter_t *adapter;
- struct Scsi_Host *host;
-
- adapter = pci_get_drvdata(pdev);
- if (!adapter) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid: Invalid detach on %#4.04x:%#4.04x:%#4.04x:%#4.04x\n",
- pdev->vendor, pdev->device, pdev->subsystem_vendor,
- pdev->subsystem_device));
- return;
- }
- else {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: detaching device %#4.04x:%#4.04x:%#4.04x:%#4.04x\n",
- pdev->vendor, pdev->device, pdev->subsystem_vendor,
- pdev->subsystem_device));
- }
- host = adapter->host;
-
-
-
-
- atomic_set(&adapter->being_detached, 1);
-
- megaraid_io_detach(adapter);
-
-
-
-
- megaraid_cmm_unregister(adapter);
-
- megaraid_fini_mbox(adapter);
- kfree(adapter);
- scsi_host_put(host);
- pci_disable_device(pdev);
- return;
- }
- static void
- megaraid_mbox_shutdown(struct pci_dev *pdev)
- {
- adapter_t *adapter = pci_get_drvdata(pdev);
- static int counter;
- if (!adapter) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: null device in shutdown\n"));
- return;
- }
-
- con_log(CL_ANN, (KERN_INFO "megaraid: flushing adapter %d...",
- counter++));
- megaraid_mbox_flush_cache(adapter);
- con_log(CL_ANN, ("done\n"));
- }
- static int
- megaraid_io_attach(adapter_t *adapter)
- {
- struct Scsi_Host *host;
-
- host = scsi_host_alloc(&megaraid_template_g, 8);
- if (!host) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mbox: scsi_register failed\n"));
- return -1;
- }
- SCSIHOST2ADAP(host) = (caddr_t)adapter;
- adapter->host = host;
- host->irq = adapter->irq;
- host->unique_id = adapter->unique_id;
- host->can_queue = adapter->max_cmds;
- host->this_id = adapter->init_id;
- host->sg_tablesize = adapter->sglen;
- host->max_sectors = adapter->max_sectors;
- host->cmd_per_lun = adapter->cmd_per_lun;
- host->max_channel = adapter->max_channel;
- host->max_id = adapter->max_target;
- host->max_lun = adapter->max_lun;
-
- if (scsi_add_host(host, &adapter->pdev->dev)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mbox: scsi_add_host failed\n"));
- scsi_host_put(host);
- return -1;
- }
- scsi_scan_host(host);
- return 0;
- }
- static void
- megaraid_io_detach(adapter_t *adapter)
- {
- struct Scsi_Host *host;
- con_log(CL_DLEVEL1, (KERN_INFO "megaraid: io detach\n"));
- host = adapter->host;
- scsi_remove_host(host);
- return;
- }
- static int
- megaraid_init_mbox(adapter_t *adapter)
- {
- struct pci_dev *pdev;
- mraid_device_t *raid_dev;
- int i;
- uint32_t magic64;
- adapter->ito = MBOX_TIMEOUT;
- pdev = adapter->pdev;
-
- raid_dev = kzalloc(sizeof(mraid_device_t), GFP_KERNEL);
- if (raid_dev == NULL) return -1;
-
- adapter->raid_device = (caddr_t)raid_dev;
- raid_dev->fast_load = megaraid_fast_load;
-
- raid_dev->baseport = pci_resource_start(pdev, 0);
- if (pci_request_regions(pdev, "MegaRAID: LSI Logic Corporation") != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: mem region busy\n"));
- goto out_free_raid_dev;
- }
- raid_dev->baseaddr = ioremap_nocache(raid_dev->baseport, 128);
- if (!raid_dev->baseaddr) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: could not map hba memory\n") );
- goto out_release_regions;
- }
-
- spin_lock_init(&raid_dev->mailbox_lock);
-
- if (megaraid_alloc_cmd_packets(adapter) != 0)
- goto out_iounmap;
-
- if (megaraid_mbox_fire_sync_cmd(adapter))
- con_log(CL_ANN, ("megaraid: sync cmd failed\n"));
-
-
- if (request_irq(adapter->irq, megaraid_isr, IRQF_SHARED, "megaraid",
- adapter)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: Couldn't register IRQ %d!\n", adapter->irq));
- goto out_alloc_cmds;
- }
-
- if (megaraid_mbox_product_info(adapter) != 0)
- goto out_free_irq;
-
- adapter->max_cdb_sz = 10;
- if (megaraid_mbox_extended_cdb(adapter) == 0) {
- adapter->max_cdb_sz = 16;
- }
-
- adapter->ha = 0;
- adapter->init_id = -1;
- if (megaraid_mbox_support_ha(adapter, &adapter->init_id) == 0) {
- adapter->ha = 1;
- }
-
- megaraid_mbox_setup_device_map(adapter);
-
- if (megaraid_mbox_support_random_del(adapter)) {
-
-
-
- for (i = 0; i <= MAX_LOGICAL_DRIVES_40LD; i++) {
- adapter->device_ids[adapter->max_channel][i] += 0x80;
- }
- adapter->device_ids[adapter->max_channel][adapter->init_id] =
- 0xFF;
- raid_dev->random_del_supported = 1;
- }
-
- adapter->sglen = megaraid_mbox_get_max_sg(adapter);
-
-
- megaraid_mbox_enum_raid_scsi(adapter);
-
- adapter->max_sectors = megaraid_max_sectors;
-
- adapter->cmd_per_lun = megaraid_cmd_per_lun;
-
- if (megaraid_sysfs_alloc_resources(adapter) != 0)
- goto out_free_irq;
-
-
- pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64);
- if (((magic64 == HBA_SIGNATURE_64_BIT) &&
- ((adapter->pdev->subsystem_device !=
- PCI_SUBSYS_ID_MEGARAID_SATA_150_6) &&
- (adapter->pdev->subsystem_device !=
- PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
- (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
- adapter->pdev->device == PCI_DEVICE_ID_VERDE) ||
- (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
- adapter->pdev->device == PCI_DEVICE_ID_DOBSON) ||
- (adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
- adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) ||
- (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
- adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) ||
- (adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
- adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) {
- if (pci_set_dma_mask(adapter->pdev, DMA_BIT_MASK(64))) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: DMA mask for 64-bit failed\n"));
- if (pci_set_dma_mask (adapter->pdev, DMA_BIT_MASK(32))) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: 32-bit DMA mask failed\n"));
- goto out_free_sysfs_res;
- }
- }
- }
-
- tasklet_init(&adapter->dpc_h, megaraid_mbox_dpc,
- (unsigned long)adapter);
- con_log(CL_DLEVEL1, (KERN_INFO
- "megaraid mbox hba successfully initialized\n"));
- return 0;
- out_free_sysfs_res:
- megaraid_sysfs_free_resources(adapter);
- out_free_irq:
- free_irq(adapter->irq, adapter);
- out_alloc_cmds:
- megaraid_free_cmd_packets(adapter);
- out_iounmap:
- iounmap(raid_dev->baseaddr);
- out_release_regions:
- pci_release_regions(pdev);
- out_free_raid_dev:
- kfree(raid_dev);
- return -1;
- }
- static void
- megaraid_fini_mbox(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
-
- megaraid_mbox_flush_cache(adapter);
- tasklet_kill(&adapter->dpc_h);
- megaraid_sysfs_free_resources(adapter);
- megaraid_free_cmd_packets(adapter);
- free_irq(adapter->irq, adapter);
- iounmap(raid_dev->baseaddr);
- pci_release_regions(adapter->pdev);
- kfree(raid_dev);
- return;
- }
- static int
- megaraid_alloc_cmd_packets(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- struct pci_dev *pdev;
- unsigned long align;
- scb_t *scb;
- mbox_ccb_t *ccb;
- struct mraid_pci_blk *epthru_pci_blk;
- struct mraid_pci_blk *sg_pci_blk;
- struct mraid_pci_blk *mbox_pci_blk;
- int i;
- pdev = adapter->pdev;
-
- raid_dev->una_mbox64 = pci_zalloc_consistent(adapter->pdev,
- sizeof(mbox64_t),
- &raid_dev->una_mbox64_dma);
- if (!raid_dev->una_mbox64) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- return -1;
- }
-
- raid_dev->mbox = &raid_dev->una_mbox64->mbox32;
- raid_dev->mbox = (mbox_t *)((((unsigned long)raid_dev->mbox) + 15) &
- (~0UL ^ 0xFUL));
- raid_dev->mbox64 = (mbox64_t *)(((unsigned long)raid_dev->mbox) - 8);
- align = ((void *)raid_dev->mbox -
- ((void *)&raid_dev->una_mbox64->mbox32));
- raid_dev->mbox_dma = (unsigned long)raid_dev->una_mbox64_dma + 8 +
- align;
-
- adapter->ibuf = pci_zalloc_consistent(pdev, MBOX_IBUF_SIZE,
- &adapter->ibuf_dma_h);
- if (!adapter->ibuf) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- goto out_free_common_mbox;
- }
-
-
-
- adapter->kscb_list = kcalloc(MBOX_MAX_SCSI_CMDS, sizeof(scb_t), GFP_KERNEL);
- if (adapter->kscb_list == NULL) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- goto out_free_ibuf;
- }
-
- if (megaraid_mbox_setup_dma_pools(adapter) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- goto out_free_scb_list;
- }
-
- epthru_pci_blk = raid_dev->epthru_pool;
- sg_pci_blk = raid_dev->sg_pool;
- mbox_pci_blk = raid_dev->mbox_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
- scb = adapter->kscb_list + i;
- ccb = raid_dev->ccb_list + i;
- ccb->mbox = (mbox_t *)(mbox_pci_blk[i].vaddr + 16);
- ccb->raw_mbox = (uint8_t *)ccb->mbox;
- ccb->mbox64 = (mbox64_t *)(mbox_pci_blk[i].vaddr + 8);
- ccb->mbox_dma_h = (unsigned long)mbox_pci_blk[i].dma_addr + 16;
-
- if (ccb->mbox_dma_h & 0x0F) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid mbox: not aligned on 16-bytes\n"));
- goto out_teardown_dma_pools;
- }
- ccb->epthru = (mraid_epassthru_t *)
- epthru_pci_blk[i].vaddr;
- ccb->epthru_dma_h = epthru_pci_blk[i].dma_addr;
- ccb->pthru = (mraid_passthru_t *)ccb->epthru;
- ccb->pthru_dma_h = ccb->epthru_dma_h;
- ccb->sgl64 = (mbox_sgl64 *)sg_pci_blk[i].vaddr;
- ccb->sgl_dma_h = sg_pci_blk[i].dma_addr;
- ccb->sgl32 = (mbox_sgl32 *)ccb->sgl64;
- scb->ccb = (caddr_t)ccb;
- scb->gp = 0;
- scb->sno = i;
- scb->scp = NULL;
- scb->state = SCB_FREE;
- scb->dma_direction = PCI_DMA_NONE;
- scb->dma_type = MRAID_DMA_NONE;
- scb->dev_channel = -1;
- scb->dev_target = -1;
-
- list_add_tail(&scb->list, &adapter->kscb_pool);
- }
- return 0;
- out_teardown_dma_pools:
- megaraid_mbox_teardown_dma_pools(adapter);
- out_free_scb_list:
- kfree(adapter->kscb_list);
- out_free_ibuf:
- pci_free_consistent(pdev, MBOX_IBUF_SIZE, (void *)adapter->ibuf,
- adapter->ibuf_dma_h);
- out_free_common_mbox:
- pci_free_consistent(adapter->pdev, sizeof(mbox64_t),
- (caddr_t)raid_dev->una_mbox64, raid_dev->una_mbox64_dma);
- return -1;
- }
- static void
- megaraid_free_cmd_packets(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- megaraid_mbox_teardown_dma_pools(adapter);
- kfree(adapter->kscb_list);
- pci_free_consistent(adapter->pdev, MBOX_IBUF_SIZE,
- (void *)adapter->ibuf, adapter->ibuf_dma_h);
- pci_free_consistent(adapter->pdev, sizeof(mbox64_t),
- (caddr_t)raid_dev->una_mbox64, raid_dev->una_mbox64_dma);
- return;
- }
- static int
- megaraid_mbox_setup_dma_pools(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- struct mraid_pci_blk *epthru_pci_blk;
- struct mraid_pci_blk *sg_pci_blk;
- struct mraid_pci_blk *mbox_pci_blk;
- int i;
-
- raid_dev->mbox_pool_handle = pci_pool_create("megaraid mbox pool",
- adapter->pdev,
- sizeof(mbox64_t) + 16,
- 16, 0);
- if (raid_dev->mbox_pool_handle == NULL) {
- goto fail_setup_dma_pool;
- }
- mbox_pci_blk = raid_dev->mbox_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
- mbox_pci_blk[i].vaddr = pci_pool_alloc(
- raid_dev->mbox_pool_handle,
- GFP_KERNEL,
- &mbox_pci_blk[i].dma_addr);
- if (!mbox_pci_blk[i].vaddr) {
- goto fail_setup_dma_pool;
- }
- }
-
- raid_dev->epthru_pool_handle = pci_pool_create("megaraid mbox pthru",
- adapter->pdev, sizeof(mraid_epassthru_t), 128, 0);
- if (raid_dev->epthru_pool_handle == NULL) {
- goto fail_setup_dma_pool;
- }
- epthru_pci_blk = raid_dev->epthru_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
- epthru_pci_blk[i].vaddr = pci_pool_alloc(
- raid_dev->epthru_pool_handle,
- GFP_KERNEL,
- &epthru_pci_blk[i].dma_addr);
- if (!epthru_pci_blk[i].vaddr) {
- goto fail_setup_dma_pool;
- }
- }
-
-
- raid_dev->sg_pool_handle = pci_pool_create("megaraid mbox sg",
- adapter->pdev,
- sizeof(mbox_sgl64) * MBOX_MAX_SG_SIZE,
- 512, 0);
- if (raid_dev->sg_pool_handle == NULL) {
- goto fail_setup_dma_pool;
- }
- sg_pci_blk = raid_dev->sg_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
- sg_pci_blk[i].vaddr = pci_pool_alloc(
- raid_dev->sg_pool_handle,
- GFP_KERNEL,
- &sg_pci_blk[i].dma_addr);
- if (!sg_pci_blk[i].vaddr) {
- goto fail_setup_dma_pool;
- }
- }
- return 0;
- fail_setup_dma_pool:
- megaraid_mbox_teardown_dma_pools(adapter);
- return -1;
- }
- static void
- megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- struct mraid_pci_blk *epthru_pci_blk;
- struct mraid_pci_blk *sg_pci_blk;
- struct mraid_pci_blk *mbox_pci_blk;
- int i;
- sg_pci_blk = raid_dev->sg_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS && sg_pci_blk[i].vaddr; i++) {
- pci_pool_free(raid_dev->sg_pool_handle, sg_pci_blk[i].vaddr,
- sg_pci_blk[i].dma_addr);
- }
- if (raid_dev->sg_pool_handle)
- pci_pool_destroy(raid_dev->sg_pool_handle);
- epthru_pci_blk = raid_dev->epthru_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS && epthru_pci_blk[i].vaddr; i++) {
- pci_pool_free(raid_dev->epthru_pool_handle,
- epthru_pci_blk[i].vaddr, epthru_pci_blk[i].dma_addr);
- }
- if (raid_dev->epthru_pool_handle)
- pci_pool_destroy(raid_dev->epthru_pool_handle);
- mbox_pci_blk = raid_dev->mbox_pool;
- for (i = 0; i < MBOX_MAX_SCSI_CMDS && mbox_pci_blk[i].vaddr; i++) {
- pci_pool_free(raid_dev->mbox_pool_handle,
- mbox_pci_blk[i].vaddr, mbox_pci_blk[i].dma_addr);
- }
- if (raid_dev->mbox_pool_handle)
- pci_pool_destroy(raid_dev->mbox_pool_handle);
- return;
- }
- static scb_t *
- megaraid_alloc_scb(adapter_t *adapter, struct scsi_cmnd *scp)
- {
- struct list_head *head = &adapter->kscb_pool;
- scb_t *scb = NULL;
- unsigned long flags;
-
- spin_lock_irqsave(SCSI_FREE_LIST_LOCK(adapter), flags);
- if (list_empty(head)) {
- spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
- return NULL;
- }
- scb = list_entry(head->next, scb_t, list);
- list_del_init(&scb->list);
- spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
- scb->state = SCB_ACTIVE;
- scb->scp = scp;
- scb->dma_type = MRAID_DMA_NONE;
- return scb;
- }
- static inline void
- megaraid_dealloc_scb(adapter_t *adapter, scb_t *scb)
- {
- unsigned long flags;
-
- scb->state = SCB_FREE;
- scb->scp = NULL;
- spin_lock_irqsave(SCSI_FREE_LIST_LOCK(adapter), flags);
- list_add(&scb->list, &adapter->kscb_pool);
- spin_unlock_irqrestore(SCSI_FREE_LIST_LOCK(adapter), flags);
- return;
- }
- static int
- megaraid_mbox_mksgl(adapter_t *adapter, scb_t *scb)
- {
- struct scatterlist *sgl;
- mbox_ccb_t *ccb;
- 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);
-
- if (!sgcnt)
- return 0;
- scb->dma_type = MRAID_DMA_WSG;
- scsi_for_each_sg(scp, sgl, sgcnt, i) {
- ccb->sgl64[i].address = sg_dma_address(sgl);
- ccb->sgl64[i].length = sg_dma_len(sgl);
- }
-
- return sgcnt;
- }
- static int
- mbox_post_cmd(adapter_t *adapter, scb_t *scb)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox64_t *mbox64;
- mbox_t *mbox;
- mbox_ccb_t *ccb;
- unsigned long flags;
- unsigned int i = 0;
- ccb = (mbox_ccb_t *)scb->ccb;
- mbox = raid_dev->mbox;
- mbox64 = raid_dev->mbox64;
-
- spin_lock_irqsave(MAILBOX_LOCK(raid_dev), flags);
- if (unlikely(mbox->busy)) {
- do {
- udelay(1);
- i++;
- rmb();
- } while(mbox->busy && (i < max_mbox_busy_wait));
- if (mbox->busy) {
- spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
- return -1;
- }
- }
-
- memcpy((caddr_t)mbox64, (caddr_t)ccb->mbox64, 22);
- mbox->cmdid = scb->sno;
- adapter->outstanding_cmds++;
- 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;
- mbox->poll = 0;
- mbox->ack = 0;
- wmb();
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
- spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
- return 0;
- }
- static int
- megaraid_queue_command_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
- {
- adapter_t *adapter;
- scb_t *scb;
- int if_busy;
- adapter = SCP2ADAPTER(scp);
- scp->scsi_done = done;
- scp->result = 0;
-
- if_busy = 0;
- scb = megaraid_mbox_build_cmd(adapter, scp, &if_busy);
- if (!scb) {
- done(scp);
- return 0;
- }
- megaraid_mbox_runpendq(adapter, scb);
- return if_busy;
- }
- static DEF_SCSI_QCMD(megaraid_queue_command)
- static scb_t *
- megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
- {
- mraid_device_t *rdev = ADAP2RAIDDEV(adapter);
- int channel;
- int target;
- int islogical;
- mbox_ccb_t *ccb;
- mraid_passthru_t *pthru;
- mbox64_t *mbox64;
- mbox_t *mbox;
- scb_t *scb;
- char skip[] = "skipping";
- char scan[] = "scanning";
- char *ss;
-
- MRAID_GET_DEVICE_MAP(adapter, scp, channel, target, islogical);
-
- if (islogical) {
- switch (scp->cmnd[0]) {
- case TEST_UNIT_READY:
-
- if (!adapter->ha) {
- scp->result = (DID_OK << 16);
- return NULL;
- }
- if (!(scb = megaraid_alloc_scb(adapter, scp))) {
- scp->result = (DID_ERROR << 16);
- *busy = 1;
- return NULL;
- }
- scb->dma_direction = scp->sc_data_direction;
- scb->dev_channel = 0xFF;
- scb->dev_target = target;
- ccb = (mbox_ccb_t *)scb->ccb;
-
- ccb->raw_mbox[0] = CLUSTER_CMD;
- ccb->raw_mbox[2] = RESERVATION_STATUS;
- ccb->raw_mbox[3] = target;
- return scb;
- case MODE_SENSE:
- {
- struct scatterlist *sgl;
- caddr_t vaddr;
- 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__));
- }
- }
- scp->result = (DID_OK << 16);
- return NULL;
- case INQUIRY:
-
- if (!(rdev->last_disp & (1L << SCP2CHANNEL(scp)))) {
- con_log(CL_ANN, (KERN_INFO
- "scsi[%d]: scanning scsi channel %d",
- adapter->host->host_no,
- SCP2CHANNEL(scp)));
- con_log(CL_ANN, (
- " [virtual] for logical drives\n"));
- rdev->last_disp |= (1L << SCP2CHANNEL(scp));
- }
- if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) {
- scp->sense_buffer[0] = 0x70;
- scp->sense_buffer[2] = ILLEGAL_REQUEST;
- scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB;
- scp->result = CHECK_CONDITION << 1;
- return NULL;
- }
-
- case READ_CAPACITY:
-
- if (SCP2LUN(scp)) {
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
- if ((target % 0x80) >= MAX_LOGICAL_DRIVES_40LD) {
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
-
- if (!(scb = megaraid_alloc_scb(adapter, scp))) {
- scp->result = (DID_ERROR << 16);
- *busy = 1;
- return NULL;
- }
- ccb = (mbox_ccb_t *)scb->ccb;
- scb->dev_channel = 0xFF;
- scb->dev_target = target;
- pthru = ccb->pthru;
- mbox = ccb->mbox;
- mbox64 = ccb->mbox64;
- pthru->timeout = 0;
- pthru->ars = 1;
- pthru->reqsenselen = 14;
- pthru->islogical = 1;
- pthru->logdrv = target;
- pthru->cdblen = scp->cmd_len;
- memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
- mbox->cmd = MBOXCMD_PASSTHRU64;
- scb->dma_direction = scp->sc_data_direction;
- pthru->dataxferlen = scsi_bufflen(scp);
- pthru->dataxferaddr = ccb->sgl_dma_h;
- pthru->numsge = megaraid_mbox_mksgl(adapter,
- scb);
- mbox->xferaddr = 0xFFFFFFFF;
- mbox64->xferaddr_lo = (uint32_t )ccb->pthru_dma_h;
- mbox64->xferaddr_hi = 0;
- return scb;
- case READ_6:
- case WRITE_6:
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
-
- if (!(scb = megaraid_alloc_scb(adapter, scp))) {
- scp->result = (DID_ERROR << 16);
- *busy = 1;
- return NULL;
- }
- ccb = (mbox_ccb_t *)scb->ccb;
- scb->dev_channel = 0xFF;
- scb->dev_target = target;
- mbox = ccb->mbox;
- mbox64 = ccb->mbox64;
- mbox->logdrv = target;
-
- mbox->cmd = (scp->cmnd[0] & 0x02) ? MBOXCMD_LWRITE64:
- MBOXCMD_LREAD64 ;
-
- if (scp->cmd_len == 6) {
- mbox->numsectors = (uint32_t)scp->cmnd[4];
- mbox->lba =
- ((uint32_t)scp->cmnd[1] << 16) |
- ((uint32_t)scp->cmnd[2] << 8) |
- (uint32_t)scp->cmnd[3];
- mbox->lba &= 0x1FFFFF;
- }
-
- else if (scp->cmd_len == 10) {
- mbox->numsectors =
- (uint32_t)scp->cmnd[8] |
- ((uint32_t)scp->cmnd[7] << 8);
- mbox->lba =
- ((uint32_t)scp->cmnd[2] << 24) |
- ((uint32_t)scp->cmnd[3] << 16) |
- ((uint32_t)scp->cmnd[4] << 8) |
- (uint32_t)scp->cmnd[5];
- }
-
- else if (scp->cmd_len == 12) {
- mbox->lba =
- ((uint32_t)scp->cmnd[2] << 24) |
- ((uint32_t)scp->cmnd[3] << 16) |
- ((uint32_t)scp->cmnd[4] << 8) |
- (uint32_t)scp->cmnd[5];
- mbox->numsectors =
- ((uint32_t)scp->cmnd[6] << 24) |
- ((uint32_t)scp->cmnd[7] << 16) |
- ((uint32_t)scp->cmnd[8] << 8) |
- (uint32_t)scp->cmnd[9];
- }
- else {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: unsupported CDB length\n"));
- megaraid_dealloc_scb(adapter, scb);
- scp->result = (DID_ERROR << 16);
- return NULL;
- }
- scb->dma_direction = scp->sc_data_direction;
-
- mbox64->xferaddr_lo = (uint32_t )ccb->sgl_dma_h;
- mbox->numsge = megaraid_mbox_mksgl(adapter,
- scb);
- mbox->xferaddr = 0xFFFFFFFF;
- mbox64->xferaddr_hi = 0;
- return scb;
- case RESERVE:
- case RELEASE:
-
- if (!adapter->ha) {
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
-
- if (!(scb = megaraid_alloc_scb(adapter, scp))) {
- scp->result = (DID_ERROR << 16);
- *busy = 1;
- return NULL;
- }
- ccb = (mbox_ccb_t *)scb->ccb;
- scb->dev_channel = 0xFF;
- scb->dev_target = target;
- ccb->raw_mbox[0] = CLUSTER_CMD;
- ccb->raw_mbox[2] = (scp->cmnd[0] == RESERVE) ?
- RESERVE_LD : RELEASE_LD;
- ccb->raw_mbox[3] = target;
- scb->dma_direction = scp->sc_data_direction;
- return scb;
- default:
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
- }
- else {
-
- if (target > 15 || SCP2LUN(scp) > 7) {
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
-
-
-
- if (rdev->fast_load && (target == 15) &&
- (SCP2CHANNEL(scp) == adapter->max_channel -1)) {
- con_log(CL_ANN, (KERN_INFO
- "megaraid[%d]: physical device scan re-enabled\n",
- adapter->host->host_no));
- rdev->fast_load = 0;
- }
-
- if (!(rdev->last_disp & (1L << SCP2CHANNEL(scp)))) {
- ss = rdev->fast_load ? skip : scan;
- con_log(CL_ANN, (KERN_INFO
- "scsi[%d]: %s scsi channel %d [Phy %d]",
- adapter->host->host_no, ss, SCP2CHANNEL(scp),
- channel));
- con_log(CL_ANN, (
- " for non-raid devices\n"));
- rdev->last_disp |= (1L << SCP2CHANNEL(scp));
- }
-
- if (rdev->fast_load) {
- scp->result = (DID_BAD_TARGET << 16);
- return NULL;
- }
-
- if (!(scb = megaraid_alloc_scb(adapter, scp))) {
- scp->result = (DID_ERROR << 16);
- *busy = 1;
- return NULL;
- }
- ccb = (mbox_ccb_t *)scb->ccb;
- scb->dev_channel = channel;
- scb->dev_target = target;
- scb->dma_direction = scp->sc_data_direction;
- mbox = ccb->mbox;
- mbox64 = ccb->mbox64;
-
- if (adapter->max_cdb_sz == 16) {
- mbox->cmd = MBOXCMD_EXTPTHRU;
- megaraid_mbox_prepare_epthru(adapter, scb, scp);
- mbox64->xferaddr_lo = (uint32_t)ccb->epthru_dma_h;
- mbox64->xferaddr_hi = 0;
- mbox->xferaddr = 0xFFFFFFFF;
- }
- else {
- mbox->cmd = MBOXCMD_PASSTHRU64;
- megaraid_mbox_prepare_pthru(adapter, scb, scp);
- mbox64->xferaddr_lo = (uint32_t)ccb->pthru_dma_h;
- mbox64->xferaddr_hi = 0;
- mbox->xferaddr = 0xFFFFFFFF;
- }
- return scb;
- }
-
- }
- static void
- megaraid_mbox_runpendq(adapter_t *adapter, scb_t *scb_q)
- {
- scb_t *scb;
- unsigned long flags;
- spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
- if (scb_q) {
- scb_q->state = SCB_PENDQ;
- list_add_tail(&scb_q->list, &adapter->pend_list);
- }
-
- if (adapter->quiescent) {
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
- return;
- }
- while (!list_empty(&adapter->pend_list)) {
- assert_spin_locked(PENDING_LIST_LOCK(adapter));
- scb = list_entry(adapter->pend_list.next, scb_t, list);
-
-
-
- list_del_init(&scb->list);
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
-
-
-
- scb->state = SCB_ISSUED;
- if (mbox_post_cmd(adapter, scb) != 0) {
- spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
- scb->state = SCB_PENDQ;
- list_add(&scb->list, &adapter->pend_list);
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter),
- flags);
- return;
- }
- spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
- }
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
- return;
- }
- static void
- megaraid_mbox_prepare_pthru(adapter_t *adapter, scb_t *scb,
- struct scsi_cmnd *scp)
- {
- mbox_ccb_t *ccb;
- mraid_passthru_t *pthru;
- uint8_t channel;
- uint8_t target;
- ccb = (mbox_ccb_t *)scb->ccb;
- pthru = ccb->pthru;
- channel = scb->dev_channel;
- target = scb->dev_target;
-
- pthru->timeout = 4;
- pthru->ars = 1;
- pthru->islogical = 0;
- pthru->channel = 0;
- pthru->target = (channel << 4) | target;
- pthru->logdrv = SCP2LUN(scp);
- pthru->reqsenselen = 14;
- pthru->cdblen = scp->cmd_len;
- memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);
- if (scsi_bufflen(scp)) {
- pthru->dataxferlen = scsi_bufflen(scp);
- pthru->dataxferaddr = ccb->sgl_dma_h;
- pthru->numsge = megaraid_mbox_mksgl(adapter, scb);
- }
- else {
- pthru->dataxferaddr = 0;
- pthru->dataxferlen = 0;
- pthru->numsge = 0;
- }
- return;
- }
- static void
- megaraid_mbox_prepare_epthru(adapter_t *adapter, scb_t *scb,
- struct scsi_cmnd *scp)
- {
- mbox_ccb_t *ccb;
- mraid_epassthru_t *epthru;
- uint8_t channel;
- uint8_t target;
- ccb = (mbox_ccb_t *)scb->ccb;
- epthru = ccb->epthru;
- channel = scb->dev_channel;
- target = scb->dev_target;
-
- epthru->timeout = 4;
- epthru->ars = 1;
- epthru->islogical = 0;
- epthru->channel = 0;
- epthru->target = (channel << 4) | target;
- epthru->logdrv = SCP2LUN(scp);
- epthru->reqsenselen = 14;
- epthru->cdblen = scp->cmd_len;
- memcpy(epthru->cdb, scp->cmnd, scp->cmd_len);
- if (scsi_bufflen(scp)) {
- epthru->dataxferlen = scsi_bufflen(scp);
- epthru->dataxferaddr = ccb->sgl_dma_h;
- epthru->numsge = megaraid_mbox_mksgl(adapter, scb);
- }
- else {
- epthru->dataxferaddr = 0;
- epthru->dataxferlen = 0;
- epthru->numsge = 0;
- }
- return;
- }
- static int
- megaraid_ack_sequence(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox_t *mbox;
- scb_t *scb;
- uint8_t nstatus;
- uint8_t completed[MBOX_MAX_FIRMWARE_STATUS];
- struct list_head clist;
- int handled;
- uint32_t dword;
- unsigned long flags;
- int i, j;
- mbox = raid_dev->mbox;
-
- INIT_LIST_HEAD(&clist);
-
- handled = 0;
- spin_lock_irqsave(MAILBOX_LOCK(raid_dev), flags);
- do {
-
- dword = RDOUTDOOR(raid_dev);
- if (dword != 0x10001234) break;
- handled = 1;
- WROUTDOOR(raid_dev, 0x10001234);
- nstatus = 0;
-
- for (i = 0; i < 0xFFFFF; i++) {
- if (mbox->numstatus != 0xFF) {
- nstatus = mbox->numstatus;
- break;
- }
- rmb();
- }
- mbox->numstatus = 0xFF;
- adapter->outstanding_cmds -= nstatus;
- for (i = 0; i < nstatus; i++) {
-
- for (j = 0; j < 0xFFFFF; j++) {
- if (mbox->completed[i] != 0xFF) break;
- rmb();
- }
- completed[i] = mbox->completed[i];
- mbox->completed[i] = 0xFF;
- if (completed[i] == 0xFF) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid: command posting timed out\n"));
- BUG();
- continue;
- }
-
- if (completed[i] >= MBOX_MAX_SCSI_CMDS) {
-
- scb = adapter->uscb_list + (completed[i] -
- MBOX_MAX_SCSI_CMDS);
- }
- else {
-
- scb = adapter->kscb_list + completed[i];
- }
- scb->status = mbox->status;
- list_add_tail(&scb->list, &clist);
- }
-
- WRINDOOR(raid_dev, 0x02);
- } while(1);
- spin_unlock_irqrestore(MAILBOX_LOCK(raid_dev), flags);
-
-
- spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
- list_splice(&clist, &adapter->completed_list);
- spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
-
- if (handled)
- tasklet_schedule(&adapter->dpc_h);
- return handled;
- }
- static irqreturn_t
- megaraid_isr(int irq, void *devp)
- {
- adapter_t *adapter = devp;
- int handled;
- handled = megaraid_ack_sequence(adapter);
-
- if (!adapter->quiescent) {
- megaraid_mbox_runpendq(adapter, NULL);
- }
- return IRQ_RETVAL(handled);
- }
- static void
- megaraid_mbox_sync_scb(adapter_t *adapter, scb_t *scb)
- {
- mbox_ccb_t *ccb;
- ccb = (mbox_ccb_t *)scb->ccb;
- 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);
- scsi_dma_unmap(scb->scp);
- return;
- }
- static void
- megaraid_mbox_dpc(unsigned long devp)
- {
- adapter_t *adapter = (adapter_t *)devp;
- mraid_device_t *raid_dev;
- struct list_head clist;
- struct scatterlist *sgl;
- scb_t *scb;
- scb_t *tmp;
- struct scsi_cmnd *scp;
- mraid_passthru_t *pthru;
- mraid_epassthru_t *epthru;
- mbox_ccb_t *ccb;
- int islogical;
- int pdev_index;
- int pdev_state;
- mbox_t *mbox;
- unsigned long flags;
- uint8_t c;
- int status;
- uioc_t *kioc;
- if (!adapter) return;
- raid_dev = ADAP2RAIDDEV(adapter);
-
- INIT_LIST_HEAD(&clist);
- spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
- list_splice_init(&adapter->completed_list, &clist);
- spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
- list_for_each_entry_safe(scb, tmp, &clist, list) {
- status = scb->status;
- scp = scb->scp;
- ccb = (mbox_ccb_t *)scb->ccb;
- pthru = ccb->pthru;
- epthru = ccb->epthru;
- mbox = ccb->mbox;
-
- if (scb->state != SCB_ISSUED) {
- con_log(CL_ANN, (KERN_CRIT
- "megaraid critical err: invalid command %d:%d:%p\n",
- scb->sno, scb->state, scp));
- BUG();
- continue;
- }
-
- if (scb->sno >= MBOX_MAX_SCSI_CMDS) {
- scb->state = SCB_FREE;
- scb->status = status;
-
- list_del_init(&scb->list);
- kioc = (uioc_t *)scb->gp;
- kioc->status = 0;
- megaraid_mbox_mm_done(adapter, scb);
- continue;
- }
-
- if (scb->state & SCB_ABORT) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: aborted cmd [%x] completed\n",
- scb->sno));
- }
-
- islogical = MRAID_IS_LOGICAL(adapter, scp);
- if (scp->cmnd[0] == INQUIRY && status == 0 && islogical == 0
- && IS_RAID_CH(raid_dev, scb->dev_channel)) {
- 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) {
- pdev_index = (scb->dev_channel * 16) +
- scb->dev_target;
- pdev_state =
- raid_dev->pdrv_state[pdev_index] & 0x0F;
- if (pdev_state == PDRV_ONLINE ||
- pdev_state == PDRV_FAILED ||
- pdev_state == PDRV_RBLD ||
- pdev_state == PDRV_HOTSPARE ||
- megaraid_expose_unconf_disks == 0) {
- status = 0xF0;
- }
- }
- }
-
- switch (status) {
- case 0x00:
- scp->result = (DID_OK << 16);
- break;
- case 0x02:
-
- if (mbox->cmd == MBOXCMD_PASSTHRU ||
- mbox->cmd == MBOXCMD_PASSTHRU64) {
- memcpy(scp->sense_buffer, pthru->reqsensearea,
- 14);
- scp->result = DRIVER_SENSE << 24 |
- DID_OK << 16 | CHECK_CONDITION << 1;
- }
- else {
- if (mbox->cmd == MBOXCMD_EXTPTHRU) {
- memcpy(scp->sense_buffer,
- epthru->reqsensearea, 14);
- scp->result = DRIVER_SENSE << 24 |
- DID_OK << 16 |
- CHECK_CONDITION << 1;
- } else {
- scp->sense_buffer[0] = 0x70;
- scp->sense_buffer[2] = ABORTED_COMMAND;
- scp->result = CHECK_CONDITION << 1;
- }
- }
- break;
- case 0x08:
- scp->result = DID_BUS_BUSY << 16 | status;
- break;
- default:
-
- if (scp->cmnd[0] == TEST_UNIT_READY) {
- scp->result = DID_ERROR << 16 |
- RESERVATION_CONFLICT << 1;
- }
- else
-
- if (status == 1 && (scp->cmnd[0] == RESERVE ||
- scp->cmnd[0] == RELEASE)) {
- scp->result = DID_ERROR << 16 |
- RESERVATION_CONFLICT << 1;
- }
- else {
- scp->result = DID_BAD_TARGET << 16 | status;
- }
- }
-
- if (status) {
- megaraid_mbox_display_scb(adapter, scb);
- }
-
-
- megaraid_mbox_sync_scb(adapter, scb);
-
- list_del_init(&scb->list);
-
- megaraid_dealloc_scb(adapter, scb);
-
- scp->scsi_done(scp);
- }
- return;
- }
- static int
- megaraid_abort_handler(struct scsi_cmnd *scp)
- {
- adapter_t *adapter;
- mraid_device_t *raid_dev;
- scb_t *scb;
- scb_t *tmp;
- int found;
- unsigned long flags;
- int i;
- adapter = SCP2ADAPTER(scp);
- raid_dev = ADAP2RAIDDEV(adapter);
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: aborting cmd=%x <c=%d t=%d l=%d>\n",
- scp->cmnd[0], SCP2CHANNEL(scp),
- SCP2TARGET(scp), SCP2LUN(scp)));
-
- if (raid_dev->hw_error) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: hw error, not aborting\n"));
- return FAILED;
- }
-
-
-
-
- scb = NULL;
- spin_lock_irqsave(COMPLETED_LIST_LOCK(adapter), flags);
- list_for_each_entry_safe(scb, tmp, &adapter->completed_list, list) {
- if (scb->scp == scp) {
- list_del_init(&scb->list);
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: %d[%d:%d], abort from completed list\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- scp->result = (DID_ABORT << 16);
- scp->scsi_done(scp);
- megaraid_dealloc_scb(adapter, scb);
- spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter),
- flags);
- return SUCCESS;
- }
- }
- spin_unlock_irqrestore(COMPLETED_LIST_LOCK(adapter), flags);
-
-
-
- spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
- list_for_each_entry_safe(scb, tmp, &adapter->pend_list, list) {
- if (scb->scp == scp) {
- list_del_init(&scb->list);
- ASSERT(!(scb->state & SCB_ISSUED));
- con_log(CL_ANN, (KERN_WARNING
- "megaraid abort: [%d:%d], driver owner\n",
- scb->dev_channel, scb->dev_target));
- scp->result = (DID_ABORT << 16);
- scp->scsi_done(scp);
- megaraid_dealloc_scb(adapter, scb);
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter),
- flags);
- return SUCCESS;
- }
- }
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
-
-
-
-
- found = 0;
- spin_lock_irq(&adapter->lock);
- for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
- scb = adapter->kscb_list + i;
- if (scb->scp == scp) {
- found = 1;
- if (!(scb->state & SCB_ISSUED)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid abort: %d[%d:%d], invalid state\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- BUG();
- }
- else {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid abort: %d[%d:%d], fw owner\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- }
- }
- }
- spin_unlock_irq(&adapter->lock);
- if (!found) {
- con_log(CL_ANN, (KERN_WARNING "megaraid abort: do now own\n"));
-
- return SUCCESS;
- }
-
-
-
- return FAILED;
- }
- static int
- megaraid_reset_handler(struct scsi_cmnd *scp)
- {
- adapter_t *adapter;
- scb_t *scb;
- scb_t *tmp;
- mraid_device_t *raid_dev;
- unsigned long flags;
- uint8_t raw_mbox[sizeof(mbox_t)];
- int rval;
- int recovery_window;
- int recovering;
- int i;
- uioc_t *kioc;
- adapter = SCP2ADAPTER(scp);
- raid_dev = ADAP2RAIDDEV(adapter);
-
- if (raid_dev->hw_error) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: hw error, cannot reset\n"));
- return FAILED;
- }
-
-
-
-
-
- spin_lock_irqsave(PENDING_LIST_LOCK(adapter), flags);
- list_for_each_entry_safe(scb, tmp, &adapter->pend_list, list) {
- list_del_init(&scb->list);
- if (scb->sno >= MBOX_MAX_SCSI_CMDS) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: IOCTL packet with %d[%d:%d] being reset\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- scb->status = -1;
- kioc = (uioc_t *)scb->gp;
- kioc->status = -EFAULT;
- megaraid_mbox_mm_done(adapter, scb);
- } else {
- if (scb->scp == scp) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: %d[%d:%d], reset from pending list\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- } else {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: IO packet with %d[%d:%d] being reset\n",
- scb->sno, scb->dev_channel, scb->dev_target));
- }
- scb->scp->result = (DID_RESET << 16);
- scb->scp->scsi_done(scb->scp);
- megaraid_dealloc_scb(adapter, scb);
- }
- }
- spin_unlock_irqrestore(PENDING_LIST_LOCK(adapter), flags);
- if (adapter->outstanding_cmds) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: %d outstanding commands. Max wait %d sec\n",
- adapter->outstanding_cmds,
- (MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT)));
- }
- recovery_window = MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT;
- recovering = adapter->outstanding_cmds;
- for (i = 0; i < recovery_window; i++) {
- megaraid_ack_sequence(adapter);
-
- if (!(i % 5)) {
- con_log(CL_ANN, (
- "megaraid mbox: Wait for %d commands to complete:%d\n",
- adapter->outstanding_cmds,
- (MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT) - i));
- }
-
- if (adapter->outstanding_cmds == 0) {
- break;
- }
- msleep(1000);
- }
- spin_lock(&adapter->lock);
-
- if (adapter->outstanding_cmds) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mbox: critical hardware error!\n"));
- raid_dev->hw_error = 1;
- rval = FAILED;
- goto out;
- }
- else {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid mbox: reset sequence completed successfully\n"));
- }
-
- if (!adapter->ha) {
- rval = SUCCESS;
- goto out;
- }
-
- raw_mbox[0] = CLUSTER_CMD;
- raw_mbox[2] = RESET_RESERVATIONS;
- rval = SUCCESS;
- if (mbox_post_sync_cmd_fast(adapter, raw_mbox) == 0) {
- con_log(CL_ANN,
- (KERN_INFO "megaraid: reservation reset\n"));
- }
- else {
- rval = FAILED;
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: reservation reset failed\n"));
- }
- out:
- spin_unlock(&adapter->lock);
- return rval;
- }
- static int
- mbox_post_sync_cmd(adapter_t *adapter, uint8_t raw_mbox[])
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox64_t *mbox64;
- mbox_t *mbox;
- uint8_t status;
- int i;
- mbox64 = raid_dev->mbox64;
- mbox = raid_dev->mbox;
-
- if (megaraid_busywait_mbox(raid_dev) != 0)
- goto blocked_mailbox;
-
- memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 16);
- mbox->cmdid = 0xFE;
- mbox->busy = 1;
- mbox->poll = 0;
- mbox->ack = 0;
- mbox->numstatus = 0xFF;
- mbox->status = 0xFF;
- wmb();
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
-
-
-
- if (mbox->numstatus == 0xFF) {
- udelay(25);
- for (i = 0; mbox->numstatus == 0xFF && i < 1000; i++) {
- rmb();
- msleep(1);
- }
- if (i == 1000) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid mailbox: wait for FW to boot "));
- for (i = 0; (mbox->numstatus == 0xFF) &&
- (i < MBOX_RESET_WAIT); i++) {
- rmb();
- con_log(CL_ANN, ("\b\b\b\b\b[%03d]",
- MBOX_RESET_WAIT - i));
- msleep(1000);
- }
- if (i == MBOX_RESET_WAIT) {
- con_log(CL_ANN, (
- "\nmegaraid mailbox: status not available\n"));
- return -1;
- }
- con_log(CL_ANN, ("\b\b\b\b\b[ok] \n"));
- }
- }
-
- if (mbox->poll != 0x77) {
- udelay(25);
- for (i = 0; (mbox->poll != 0x77) && (i < 1000); i++) {
- rmb();
- msleep(1);
- }
- if (i == 1000) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mailbox: could not get poll semaphore\n"));
- return -1;
- }
- }
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x2);
- wmb();
-
- if (RDINDOOR(raid_dev) & 0x2) {
- udelay(25);
- for (i = 0; (RDINDOOR(raid_dev) & 0x2) && (i < 1000); i++) {
- rmb();
- msleep(1);
- }
- if (i == 1000) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mailbox: could not acknowledge\n"));
- return -1;
- }
- }
- mbox->poll = 0;
- mbox->ack = 0x77;
- status = mbox->status;
-
-
- mbox->numstatus = 0xFF;
- mbox->status = 0xFF;
- for (i = 0; i < MBOX_MAX_FIRMWARE_STATUS; i++) {
- mbox->completed[i] = 0xFF;
- }
- return status;
- blocked_mailbox:
- con_log(CL_ANN, (KERN_WARNING "megaraid: blocked mailbox\n") );
- return -1;
- }
- static int
- mbox_post_sync_cmd_fast(adapter_t *adapter, uint8_t raw_mbox[])
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox_t *mbox;
- long i;
- mbox = raid_dev->mbox;
-
- if (mbox->busy) return -1;
-
- memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 14);
- mbox->cmdid = 0xFE;
- mbox->busy = 1;
- mbox->poll = 0;
- mbox->ack = 0;
- mbox->numstatus = 0xFF;
- mbox->status = 0xFF;
- wmb();
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
- for (i = 0; i < MBOX_SYNC_WAIT_CNT; i++) {
- if (mbox->numstatus != 0xFF) break;
- rmb();
- udelay(MBOX_SYNC_DELAY_200);
- }
- if (i == MBOX_SYNC_WAIT_CNT) {
-
- con_log(CL_ANN, (KERN_CRIT
- "megaraid: fast sync command timed out\n"));
- }
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x2);
- wmb();
- return mbox->status;
- }
- static int
- megaraid_busywait_mbox(mraid_device_t *raid_dev)
- {
- mbox_t *mbox = raid_dev->mbox;
- int i = 0;
- if (mbox->busy) {
- udelay(25);
- for (i = 0; mbox->busy && i < 1000; i++)
- msleep(1);
- }
- if (i < 1000) return 0;
- else return -1;
- }
- static int
- megaraid_mbox_product_info(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- mraid_pinfo_t *pinfo;
- dma_addr_t pinfo_dma_h;
- mraid_inquiry3_t *mraid_inq3;
- int i;
- memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
- mbox = (mbox_t *)raw_mbox;
-
- pinfo = pci_zalloc_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
- &pinfo_dma_h);
- if (pinfo == NULL) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- return -1;
- }
- mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
- memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
- raw_mbox[0] = FC_NEW_CONFIG;
- raw_mbox[2] = NC_SUBOP_ENQUIRY3;
- raw_mbox[3] = ENQ3_GET_SOLICITED_FULL;
-
- if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
- con_log(CL_ANN, (KERN_WARNING "megaraid: Inquiry3 failed\n"));
- pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
- pinfo, pinfo_dma_h);
- return -1;
- }
-
- mraid_inq3 = (mraid_inquiry3_t *)adapter->ibuf;
- for (i = 0; i < MBOX_MAX_PHYSICAL_DRIVES; i++) {
- raid_dev->pdrv_state[i] = mraid_inq3->pdrv_state[i];
- }
-
- memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
- mbox->xferaddr = (uint32_t)pinfo_dma_h;
- raw_mbox[0] = FC_NEW_CONFIG;
- raw_mbox[2] = NC_SUBOP_PRODUCT_INFO;
- if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: product info failed\n"));
- pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t),
- pinfo, pinfo_dma_h);
- return -1;
- }
-
- adapter->max_channel = pinfo->nchannels;
-
- adapter->max_target = MAX_LOGICAL_DRIVES_40LD + 1;
- adapter->max_lun = 8;
-
- adapter->max_cmds = MBOX_MAX_SCSI_CMDS;
- memset(adapter->fw_version, 0, VERSION_SIZE);
- memset(adapter->bios_version, 0, VERSION_SIZE);
- memcpy(adapter->fw_version, pinfo->fw_version, 4);
- adapter->fw_version[4] = 0;
- memcpy(adapter->bios_version, pinfo->bios_version, 4);
- adapter->bios_version[4] = 0;
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid: fw version:[%s] bios version:[%s]\n",
- adapter->fw_version, adapter->bios_version));
- pci_free_consistent(adapter->pdev, sizeof(mraid_pinfo_t), pinfo,
- pinfo_dma_h);
- return 0;
- }
- static int
- megaraid_mbox_extended_cdb(adapter_t *adapter)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- int rval;
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
- mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
- memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
- raw_mbox[0] = MAIN_MISC_OPCODE;
- raw_mbox[2] = SUPPORT_EXT_CDB;
-
- rval = 0;
- if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
- rval = -1;
- }
- return rval;
- }
- static int
- megaraid_mbox_support_ha(adapter_t *adapter, uint16_t *init_id)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- int rval;
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(raw_mbox));
- mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
- memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
- raw_mbox[0] = GET_TARGET_ID;
-
- *init_id = 7;
- rval = -1;
- if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
- *init_id = *(uint8_t *)adapter->ibuf;
- con_log(CL_ANN, (KERN_INFO
- "megaraid: cluster firmware, initiator ID: %d\n",
- *init_id));
- rval = 0;
- }
- return rval;
- }
- static int
- megaraid_mbox_support_random_del(adapter_t *adapter)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- int rval;
-
- 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;
- memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
- raw_mbox[0] = FC_DEL_LOGDRV;
- raw_mbox[2] = OP_SUP_DEL_LOGDRV;
-
- rval = 0;
- if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
- con_log(CL_DLEVEL1, ("megaraid: supports random deletion\n"));
- rval = 1;
- }
- return rval;
- }
- static int
- megaraid_mbox_get_max_sg(adapter_t *adapter)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- int nsg;
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
- mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
- memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
- raw_mbox[0] = MAIN_MISC_OPCODE;
- raw_mbox[2] = GET_MAX_SG_SUPPORT;
-
- if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
- nsg = *(uint8_t *)adapter->ibuf;
- }
- else {
- nsg = MBOX_DEFAULT_SG_SIZE;
- }
- if (nsg > MBOX_MAX_SG_SIZE) nsg = MBOX_MAX_SG_SIZE;
- return nsg;
- }
- static void
- megaraid_mbox_enum_raid_scsi(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
- mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h;
- memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE);
- raw_mbox[0] = CHNL_CLASS;
- raw_mbox[2] = GET_CHNL_CLASS;
-
-
- raid_dev->channel_class = 0xFF;
- if (mbox_post_sync_cmd(adapter, raw_mbox) == 0) {
- raid_dev->channel_class = *(uint8_t *)adapter->ibuf;
- }
- return;
- }
- static void
- megaraid_mbox_flush_cache(adapter_t *adapter)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
- raw_mbox[0] = FLUSH_ADAPTER;
- if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
- con_log(CL_ANN, ("megaraid: flush adapter failed\n"));
- }
- raw_mbox[0] = FLUSH_SYSTEM;
- if (mbox_post_sync_cmd(adapter, raw_mbox) != 0) {
- con_log(CL_ANN, ("megaraid: flush disks cache failed\n"));
- }
- return;
- }
- static int
- megaraid_mbox_fire_sync_cmd(adapter_t *adapter)
- {
- mbox_t *mbox;
- uint8_t raw_mbox[sizeof(mbox_t)];
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mbox64_t *mbox64;
- int status = 0;
- int i;
- uint32_t dword;
- mbox = (mbox_t *)raw_mbox;
- memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
- raw_mbox[0] = 0xFF;
- mbox64 = raid_dev->mbox64;
- mbox = raid_dev->mbox;
-
- if (megaraid_busywait_mbox(raid_dev) != 0) {
- status = 1;
- goto blocked_mailbox;
- }
-
- memcpy((caddr_t)mbox, (caddr_t)raw_mbox, 16);
- mbox->cmdid = 0xFE;
- mbox->busy = 1;
- mbox->poll = 0;
- mbox->ack = 0;
- mbox->numstatus = 0;
- mbox->status = 0;
- wmb();
- WRINDOOR(raid_dev, raid_dev->mbox_dma | 0x1);
-
- i = 0;
- status = 0;
- while (!mbox->numstatus && mbox->cmd == 0xFF) {
- rmb();
- msleep(1);
- i++;
- if (i > 1000 * 60) {
- status = 1;
- break;
- }
- }
- if (mbox->numstatus == 1)
- status = 1;
-
- dword = RDOUTDOOR(raid_dev);
- WROUTDOOR(raid_dev, dword);
- WRINDOOR(raid_dev,2);
- return status;
- blocked_mailbox:
- con_log(CL_ANN, (KERN_WARNING "megaraid: blocked mailbox\n"));
- return status;
- }
- static void
- megaraid_mbox_display_scb(adapter_t *adapter, scb_t *scb)
- {
- mbox_ccb_t *ccb;
- struct scsi_cmnd *scp;
- mbox_t *mbox;
- int level;
- int i;
- ccb = (mbox_ccb_t *)scb->ccb;
- scp = scb->scp;
- mbox = ccb->mbox;
- level = CL_DLEVEL3;
- con_log(level, (KERN_NOTICE
- "megaraid mailbox: status:%#x cmd:%#x id:%#x ", scb->status,
- mbox->cmd, scb->sno));
- con_log(level, ("sec:%#x lba:%#x addr:%#x ld:%d sg:%d\n",
- mbox->numsectors, mbox->lba, mbox->xferaddr, mbox->logdrv,
- mbox->numsge));
- if (!scp) return;
- con_log(level, (KERN_NOTICE "scsi cmnd: "));
- for (i = 0; i < scp->cmd_len; i++) {
- con_log(level, ("%#2.02x ", scp->cmnd[i]));
- }
- con_log(level, ("\n"));
- return;
- }
- static void
- megaraid_mbox_setup_device_map(adapter_t *adapter)
- {
- uint8_t c;
- uint8_t t;
-
- for (t = 0; t < LSI_MAX_LOGICAL_DRIVES_64LD; t++)
- adapter->device_ids[adapter->max_channel][t] =
- (t < adapter->init_id) ? t : t - 1;
- adapter->device_ids[adapter->max_channel][adapter->init_id] = 0xFF;
-
- for (c = 0; c < adapter->max_channel; c++)
- for (t = 0; t < LSI_MAX_LOGICAL_DRIVES_64LD; t++)
- adapter->device_ids[c][t] = (c << 8) | t;
- }
- static int
- megaraid_cmm_register(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- mraid_mmadp_t adp;
- scb_t *scb;
- mbox_ccb_t *ccb;
- int rval;
- int i;
-
- adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL);
- if (adapter->uscb_list == NULL) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: out of memory, %s %d\n", __func__,
- __LINE__));
- return -1;
- }
-
-
- INIT_LIST_HEAD(&adapter->uscb_pool);
- spin_lock_init(USER_FREE_LIST_LOCK(adapter));
-
-
-
-
- for (i = 0; i < MBOX_MAX_USER_CMDS; i++) {
- scb = adapter->uscb_list + i;
- ccb = raid_dev->uccb_list + i;
- scb->ccb = (caddr_t)ccb;
- ccb->mbox64 = raid_dev->umbox64 + i;
- ccb->mbox = &ccb->mbox64->mbox32;
- ccb->raw_mbox = (uint8_t *)ccb->mbox;
- scb->gp = 0;
-
-
- scb->sno = i + MBOX_MAX_SCSI_CMDS;
- scb->scp = NULL;
- scb->state = SCB_FREE;
- scb->dma_direction = PCI_DMA_NONE;
- scb->dma_type = MRAID_DMA_NONE;
- scb->dev_channel = -1;
- scb->dev_target = -1;
-
- list_add_tail(&scb->list, &adapter->uscb_pool);
- }
- adp.unique_id = adapter->unique_id;
- adp.drvr_type = DRVRTYPE_MBOX;
- adp.drvr_data = (unsigned long)adapter;
- adp.pdev = adapter->pdev;
- adp.issue_uioc = megaraid_mbox_mm_handler;
- adp.timeout = MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT;
- adp.max_kioc = MBOX_MAX_USER_CMDS;
- if ((rval = mraid_mm_register_adp(&adp)) != 0) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mbox: did not register with CMM\n"));
- kfree(adapter->uscb_list);
- }
- return rval;
- }
- static int
- megaraid_cmm_unregister(adapter_t *adapter)
- {
- kfree(adapter->uscb_list);
- mraid_mm_unregister_adp(adapter->unique_id);
- return 0;
- }
- static int
- megaraid_mbox_mm_handler(unsigned long drvr_data, uioc_t *kioc, uint32_t action)
- {
- adapter_t *adapter;
- if (action != IOCTL_ISSUE) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: unsupported management action:%#2x\n",
- action));
- return (-ENOTSUPP);
- }
- adapter = (adapter_t *)drvr_data;
-
- if (atomic_read(&adapter->being_detached)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid: reject management request, detaching\n"));
- return (-ENODEV);
- }
- switch (kioc->opcode) {
- case GET_ADAP_INFO:
- kioc->status = gather_hbainfo(adapter, (mraid_hba_info_t *)
- (unsigned long)kioc->buf_vaddr);
- kioc->done(kioc);
- return kioc->status;
- case MBOX_CMD:
- return megaraid_mbox_mm_command(adapter, kioc);
- default:
- kioc->status = (-EINVAL);
- kioc->done(kioc);
- return (-EINVAL);
- }
- return 0;
- }
- static int
- megaraid_mbox_mm_command(adapter_t *adapter, uioc_t *kioc)
- {
- struct list_head *head = &adapter->uscb_pool;
- mbox64_t *mbox64;
- uint8_t *raw_mbox;
- scb_t *scb;
- mbox_ccb_t *ccb;
- unsigned long flags;
-
- spin_lock_irqsave(USER_FREE_LIST_LOCK(adapter), flags);
- if (list_empty(head)) {
- con_log(CL_ANN, (KERN_WARNING
- "megaraid mbox: bug in cmm handler, lost resources\n"));
- spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
- return (-EINVAL);
- }
- scb = list_entry(head->next, scb_t, list);
- list_del_init(&scb->list);
- spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
- 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;
- raw_mbox = (uint8_t *)&mbox64->mbox32;
- memcpy(ccb->mbox64, mbox64, sizeof(mbox64_t));
- scb->gp = (unsigned long)kioc;
-
- if (raw_mbox[0] == FC_DEL_LOGDRV && raw_mbox[2] == OP_DEL_LOGDRV) {
- if (wait_till_fw_empty(adapter)) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid mbox: LD delete, timed out\n"));
- kioc->status = -ETIME;
- scb->status = -1;
- megaraid_mbox_mm_done(adapter, scb);
- return (-ETIME);
- }
- INIT_LIST_HEAD(&scb->list);
- scb->state = SCB_ISSUED;
- if (mbox_post_cmd(adapter, scb) != 0) {
- con_log(CL_ANN, (KERN_NOTICE
- "megaraid mbox: LD delete, mailbox busy\n"));
- kioc->status = -EBUSY;
- scb->status = -1;
- megaraid_mbox_mm_done(adapter, scb);
- return (-EBUSY);
- }
- return 0;
- }
-
- megaraid_mbox_runpendq(adapter, scb);
- return 0;
- }
- static int
- wait_till_fw_empty(adapter_t *adapter)
- {
- unsigned long flags = 0;
- int i;
-
- spin_lock_irqsave(&adapter->lock, flags);
- adapter->quiescent++;
- spin_unlock_irqrestore(&adapter->lock, flags);
-
- for (i = 0; i < 60 && adapter->outstanding_cmds; i++) {
- con_log(CL_DLEVEL1, (KERN_INFO
- "megaraid: FW has %d pending commands\n",
- adapter->outstanding_cmds));
- msleep(1000);
- }
- return adapter->outstanding_cmds;
- }
- static void
- megaraid_mbox_mm_done(adapter_t *adapter, scb_t *scb)
- {
- uioc_t *kioc;
- mbox64_t *mbox64;
- uint8_t *raw_mbox;
- unsigned long flags;
- kioc = (uioc_t *)scb->gp;
- mbox64 = (mbox64_t *)(unsigned long)kioc->cmdbuf;
- mbox64->mbox32.status = scb->status;
- raw_mbox = (uint8_t *)&mbox64->mbox32;
-
- scb->state = SCB_FREE;
- scb->scp = NULL;
- spin_lock_irqsave(USER_FREE_LIST_LOCK(adapter), flags);
- list_add(&scb->list, &adapter->uscb_pool);
- spin_unlock_irqrestore(USER_FREE_LIST_LOCK(adapter), flags);
-
-
- if (raw_mbox[0] == FC_DEL_LOGDRV && raw_mbox[2] == OP_DEL_LOGDRV) {
- adapter->quiescent--;
- megaraid_mbox_runpendq(adapter, NULL);
- }
- kioc->done(kioc);
- return;
- }
- static int
- gather_hbainfo(adapter_t *adapter, mraid_hba_info_t *hinfo)
- {
- uint8_t dmajor;
- dmajor = megaraid_mbox_version[0];
- hinfo->pci_vendor_id = adapter->pdev->vendor;
- hinfo->pci_device_id = adapter->pdev->device;
- hinfo->subsys_vendor_id = adapter->pdev->subsystem_vendor;
- hinfo->subsys_device_id = adapter->pdev->subsystem_device;
- hinfo->pci_bus = adapter->pdev->bus->number;
- hinfo->pci_dev_fn = adapter->pdev->devfn;
- hinfo->pci_slot = PCI_SLOT(adapter->pdev->devfn);
- hinfo->irq = adapter->host->irq;
- hinfo->baseport = ADAP2RAIDDEV(adapter)->baseport;
- hinfo->unique_id = (hinfo->pci_bus << 8) | adapter->pdev->devfn;
- hinfo->host_no = adapter->host->host_no;
- return 0;
- }
- 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", __func__,
- __LINE__));
- rval = -ENOMEM;
- megaraid_sysfs_free_resources(adapter);
- }
- mutex_init(&raid_dev->sysfs_mtx);
- init_waitqueue_head(&raid_dev->sysfs_wait_q);
- return rval;
- }
- static void
- megaraid_sysfs_free_resources(adapter_t *adapter)
- {
- mraid_device_t *raid_dev = ADAP2RAIDDEV(adapter);
- kfree(raid_dev->sysfs_uioc);
- 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);
- }
- }
- 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);
- }
- 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);
- }
- 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;
-
- mutex_lock(&raid_dev->sysfs_mtx);
- 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;
-
- mbox->xferaddr = (uint32_t)raid_dev->sysfs_buffer_dma;
- raw_mbox[0] = FC_DEL_LOGDRV;
- raw_mbox[2] = OP_GET_LDID_MAP;
-
- 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);
-
- rval = megaraid_mbox_mm_command(adapter, uioc);
- if (rval == 0) {
- wait_event(raid_dev->sysfs_wait_q, (uioc->status != -ENODATA));
-
- 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);
- mutex_unlock(&raid_dev->sysfs_mtx);
- return rval;
- }
- static ssize_t
- megaraid_sysfs_show_app_hndl(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct Scsi_Host *shost = class_to_shost(dev);
- 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);
- }
- static ssize_t
- megaraid_sysfs_show_ldnum(struct device *dev, struct device_attribute *attr, 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);
- }
- module_init(megaraid_init);
- module_exit(megaraid_exit);
|