diff options
Diffstat (limited to 'drivers/scsi/pmcraid.c')
| -rw-r--r-- | drivers/scsi/pmcraid.c | 245 |
1 files changed, 164 insertions, 81 deletions
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index ecc45c8b4e6..be8ce54f99b 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -39,7 +39,6 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/hdreg.h> -#include <linux/version.h> #include <linux/io.h> #include <linux/slab.h> #include <asm/irq.h> @@ -62,6 +61,7 @@ static unsigned int pmcraid_debug_log; static unsigned int pmcraid_disable_aen; static unsigned int pmcraid_log_level = IOASC_LOG_LEVEL_MUST; +static unsigned int pmcraid_enable_msix; /* * Data structures to support multiple adapters by the LLD. @@ -125,7 +125,7 @@ static struct pmcraid_chip_details pmcraid_chip_cfg[] = { /* * PCI device ids supported by pmcraid driver */ -static struct pci_device_id pmcraid_pci_table[] __devinitdata = { +static struct pci_device_id pmcraid_pci_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_PMC, PCI_DEVICE_ID_PMC_MAXRAID), 0, 0, (kernel_ulong_t)&pmcraid_chip_cfg[0] }, @@ -212,7 +212,7 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev) * pmcraid_slave_configure - Configures a SCSI device * @scsi_dev: scsi device struct * - * This fucntion is executed by SCSI mid layer just after a device is first + * This function is executed by SCSI mid layer just after a device is first * scanned (i.e. it has responded to an INQUIRY). For VSET resources, the * timeout value (default 30s) will be over-written to a higher value (60s) * and max_sectors value will be over-written to 512. It also sets queue depth @@ -1404,11 +1404,22 @@ enum { }; #define PMCRAID_AEN_CMD_MAX (__PMCRAID_AEN_CMD_MAX - 1) +static struct genl_multicast_group pmcraid_mcgrps[] = { + { .name = "events", /* not really used - see ID discussion below */ }, +}; + static struct genl_family pmcraid_event_family = { - .id = GENL_ID_GENERATE, + /* + * Due to prior multicast group abuse (the code having assumed that + * the family ID can be used as a multicast group ID) we need to + * statically allocate a family (and thus group) ID. + */ + .id = GENL_ID_PMCRAID, .name = "pmcraid", .version = 1, - .maxattr = PMCRAID_AEN_ATTR_MAX + .maxattr = PMCRAID_AEN_ATTR_MAX, + .mcgrps = pmcraid_mcgrps, + .n_mcgrps = ARRAY_SIZE(pmcraid_mcgrps), }; /** @@ -1511,8 +1522,8 @@ static int pmcraid_notify_aen( return result; } - result = - genlmsg_multicast(skb, 0, pmcraid_event_family.id, GFP_ATOMIC); + result = genlmsg_multicast(&pmcraid_event_family, skb, + 0, 0, GFP_ATOMIC); /* If there are no listeners, genlmsg_multicast may return non-zero * value. @@ -1594,10 +1605,12 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance) cfg_entry = &ccn_hcam->cfg_entry; fw_version = be16_to_cpu(pinstance->inq_data->fw_version); - pmcraid_info - ("CCN(%x): %x type: %x lost: %x flags: %x res: %x:%x:%x:%x\n", + pmcraid_info("CCN(%x): %x timestamp: %llx type: %x lost: %x flags: %x \ + res: %x:%x:%x:%x\n", pinstance->ccn.hcam->ilid, pinstance->ccn.hcam->op_code, + ((pinstance->ccn.hcam->timestamp1) | + ((pinstance->ccn.hcam->timestamp2 & 0xffffffffLL) << 32)), pinstance->ccn.hcam->notification_type, pinstance->ccn.hcam->notification_lost, pinstance->ccn.hcam->flags, @@ -1850,6 +1863,7 @@ static void pmcraid_process_ccn(struct pmcraid_cmd *cmd) * none */ static void pmcraid_initiate_reset(struct pmcraid_instance *); +static void pmcraid_set_timestamp(struct pmcraid_cmd *cmd); static void pmcraid_process_ldn(struct pmcraid_cmd *cmd) { @@ -1881,6 +1895,10 @@ static void pmcraid_process_ldn(struct pmcraid_cmd *cmd) lock_flags); return; } + if (fd_ioasc == PMCRAID_IOASC_TIME_STAMP_OUT_OF_SYNC) { + pinstance->timestamp_error = 1; + pmcraid_set_timestamp(cmd); + } } else { dev_info(&pinstance->pdev->dev, "Host RCB(LDN) failed with IOASC: 0x%08X\n", ioasc); @@ -2114,7 +2132,7 @@ static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance) * * This function executes most of the steps required for IOA reset. This gets * called by user threads (modprobe/insmod/rmmod) timer, tasklet and midlayer's - * 'eh_' thread. Access to variables used for controling the reset sequence is + * 'eh_' thread. Access to variables used for controlling the reset sequence is * synchronized using host lock. Various functions called during reset process * would make use of a single command block, pointer to which is also stored in * adapter instance structure. @@ -2220,12 +2238,7 @@ static void pmcraid_ioa_reset(struct pmcraid_cmd *cmd) /* Once either bist or pci reset is done, restore PCI config * space. If this fails, proceed with hard reset again */ - if (pci_restore_state(pinstance->pdev)) { - pmcraid_info("config-space error resetting again\n"); - pinstance->ioa_state = IOA_STATE_IN_RESET_ALERT; - pmcraid_reset_alert(cmd); - break; - } + pci_restore_state(pinstance->pdev); /* fail all pending commands */ pmcraid_fail_outstanding_cmds(pinstance); @@ -2991,7 +3004,7 @@ static int pmcraid_abort_complete(struct pmcraid_cmd *cancel_cmd) /* If the abort task is not timed out we will get a Good completion * as sense_key, otherwise we may get one the following responses - * due to subsquent bus reset or device reset. In case IOASC is + * due to subsequent bus reset or device reset. In case IOASC is * NR_SYNC_REQUIRED, set sync_reqd flag for the corresponding resource */ if (ioasc == PMCRAID_IOASC_UA_BUS_WAS_RESET || @@ -3363,7 +3376,7 @@ static struct pmcraid_sglist *pmcraid_alloc_sglist(int buflen) sg_size = buflen; for (i = 0; i < num_elem; i++) { - page = alloc_pages(GFP_KERNEL|GFP_DMA, order); + page = alloc_pages(GFP_KERNEL|GFP_DMA|__GFP_ZERO, order); if (!page) { for (j = i - 1; j >= 0; j--) __free_pages(sg_page(&scatterlist[j]), order); @@ -3471,7 +3484,7 @@ static int pmcraid_copy_sglist( * SCSI_MLQUEUE_DEVICE_BUSY if device is busy * SCSI_MLQUEUE_HOST_BUSY if host is busy */ -static int pmcraid_queuecommand( +static int pmcraid_queuecommand_lck( struct scsi_cmnd *scsi_cmd, void (*done) (struct scsi_cmnd *) ) @@ -3577,6 +3590,8 @@ static int pmcraid_queuecommand( return rc; } +static DEF_SCSI_QCMD(pmcraid_queuecommand) + /** * pmcraid_open -char node "open" entry, allowed only users with admin access */ @@ -3595,19 +3610,6 @@ static int pmcraid_chr_open(struct inode *inode, struct file *filep) } /** - * pmcraid_release - char node "release" entry point - */ -static int pmcraid_chr_release(struct inode *inode, struct file *filep) -{ - struct pmcraid_instance *pinstance = filep->private_data; - - filep->private_data = NULL; - fasync_helper(-1, filep, 0, &pinstance->aen_queue); - - return 0; -} - -/** * pmcraid_fasync - Async notifier registration from applications * * This function adds the calling process to a driver global queue. When an @@ -3739,6 +3741,7 @@ static long pmcraid_ioctl_passthrough( unsigned long request_buffer; unsigned long request_offset; unsigned long lock_flags; + void *ioasa; u32 ioasc; int request_size; int buffer_size; @@ -3780,6 +3783,11 @@ static long pmcraid_ioctl_passthrough( rc = __copy_from_user(buffer, (struct pmcraid_passthrough_ioctl_buffer *) arg, sizeof(struct pmcraid_passthrough_ioctl_buffer)); + + ioasa = + (void *)(arg + + offsetof(struct pmcraid_passthrough_ioctl_buffer, ioasa)); + if (rc) { pmcraid_err("ioctl: can't copy passthrough buffer\n"); rc = -EFAULT; @@ -3803,6 +3811,9 @@ static long pmcraid_ioctl_passthrough( rc = -EFAULT; goto out_free_buffer; } + } else if (request_size < 0) { + rc = -EINVAL; + goto out_free_buffer; } /* check if we have any additional command parameters */ @@ -3857,6 +3868,9 @@ static long pmcraid_ioctl_passthrough( pmcraid_err("couldn't build passthrough ioadls\n"); goto out_free_buffer; } + } else if (request_size < 0) { + rc = -EINVAL; + goto out_free_buffer; } /* If data is being written into the device, copy the data from user @@ -3922,7 +3936,7 @@ static long pmcraid_ioctl_passthrough( /* if abort task couldn't find the command i.e it got * completed prior to aborting, return good completion. - * if command got aborted succesfully or there was IOA + * if command got aborted successfully or there was IOA * reset due to abort task itself getting timedout then * return -ETIMEDOUT */ @@ -3947,22 +3961,14 @@ static long pmcraid_ioctl_passthrough( } out_handle_response: - /* If the command failed for any reason, copy entire IOASA buffer and - * return IOCTL success. If copying IOASA to user-buffer fails, return + /* copy entire IOASA buffer and return IOCTL success. + * If copying IOASA to user-buffer fails, return * EFAULT */ - if (PMCRAID_IOASC_SENSE_KEY(le32_to_cpu(cmd->ioa_cb->ioasa.ioasc))) { - void *ioasa = - (void *)(arg + - offsetof(struct pmcraid_passthrough_ioctl_buffer, ioasa)); - - pmcraid_info("command failed with %x\n", - le32_to_cpu(cmd->ioa_cb->ioasa.ioasc)); - if (copy_to_user(ioasa, &cmd->ioa_cb->ioasa, - sizeof(struct pmcraid_ioasa))) { - pmcraid_err("failed to copy ioasa buffer to user\n"); - rc = -EFAULT; - } + if (copy_to_user(ioasa, &cmd->ioa_cb->ioasa, + sizeof(struct pmcraid_ioasa))) { + pmcraid_err("failed to copy ioasa buffer to user\n"); + rc = -EFAULT; } /* If the data transfer was from device, copy the data onto user @@ -4094,10 +4100,10 @@ static long pmcraid_chr_ioctl( struct pmcraid_ioctl_header *hdr = NULL; int retval = -ENOTTY; - hdr = kmalloc(GFP_KERNEL, sizeof(struct pmcraid_ioctl_header)); + hdr = kmalloc(sizeof(struct pmcraid_ioctl_header), GFP_KERNEL); if (!hdr) { - pmcraid_err("faile to allocate memory for ioctl header\n"); + pmcraid_err("failed to allocate memory for ioctl header\n"); return -ENOMEM; } @@ -4159,12 +4165,12 @@ static long pmcraid_chr_ioctl( static const struct file_operations pmcraid_fops = { .owner = THIS_MODULE, .open = pmcraid_chr_open, - .release = pmcraid_chr_release, .fasync = pmcraid_chr_fasync, .unlocked_ioctl = pmcraid_chr_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = pmcraid_chr_ioctl, #endif + .llseek = noop_llseek, }; @@ -4245,8 +4251,8 @@ static ssize_t pmcraid_show_drv_version( char *buf ) { - return snprintf(buf, PAGE_SIZE, "version: %s, build date: %s\n", - PMCRAID_DRIVER_VERSION, PMCRAID_DRIVER_DATE); + return snprintf(buf, PAGE_SIZE, "version: %s\n", + PMCRAID_DRIVER_VERSION); } static struct device_attribute pmcraid_driver_version_attr = { @@ -4319,6 +4325,7 @@ static struct scsi_host_template pmcraid_host_template = { .this_id = -1, .sg_tablesize = PMCRAID_MAX_IOADLS, .max_sectors = PMCRAID_IOA_MAX_SECTORS, + .no_write_same = 1, .cmd_per_lun = PMCRAID_MAX_CMD_PER_LUN, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = pmcraid_host_attrs, @@ -4683,7 +4690,8 @@ pmcraid_register_interrupt_handler(struct pmcraid_instance *pinstance) int rc; struct pci_dev *pdev = pinstance->pdev; - if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) { + if ((pmcraid_enable_msix) && + (pci_find_capability(pdev, PCI_CAP_ID_MSIX))) { int num_hrrq = PMCRAID_NUM_MSIX_VECTORS; struct msix_entry entries[PMCRAID_NUM_MSIX_VECTORS]; int i; @@ -4808,8 +4816,7 @@ pmcraid_release_control_blocks( * Return Value * 0 in case of success; -ENOMEM in case of failure */ -static int __devinit -pmcraid_allocate_cmd_blocks(struct pmcraid_instance *pinstance) +static int pmcraid_allocate_cmd_blocks(struct pmcraid_instance *pinstance) { int i; @@ -4845,8 +4852,7 @@ pmcraid_allocate_cmd_blocks(struct pmcraid_instance *pinstance) * Return Value * 0 in case it can allocate all control blocks, otherwise -ENOMEM */ -static int __devinit -pmcraid_allocate_control_blocks(struct pmcraid_instance *pinstance) +static int pmcraid_allocate_control_blocks(struct pmcraid_instance *pinstance) { int i; @@ -4912,8 +4918,7 @@ pmcraid_release_host_rrqs(struct pmcraid_instance *pinstance, int maxindex) * Return value * 0 hrrq buffers are allocated, -ENOMEM otherwise. */ -static int __devinit -pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) +static int pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) { int i, buffer_size; @@ -5052,8 +5057,7 @@ static void pmcraid_release_config_buffers(struct pmcraid_instance *pinstance) * Return Value * 0 for successful allocation, -ENOMEM for any failure */ -static int __devinit -pmcraid_allocate_config_buffers(struct pmcraid_instance *pinstance) +static int pmcraid_allocate_config_buffers(struct pmcraid_instance *pinstance) { int i; @@ -5146,6 +5150,16 @@ static void pmcraid_release_buffers(struct pmcraid_instance *pinstance) pinstance->inq_data = NULL; pinstance->inq_data_baddr = 0; } + + if (pinstance->timestamp_data != NULL) { + pci_free_consistent(pinstance->pdev, + sizeof(struct pmcraid_timestamp_data), + pinstance->timestamp_data, + pinstance->timestamp_data_baddr); + + pinstance->timestamp_data = NULL; + pinstance->timestamp_data_baddr = 0; + } } /** @@ -5161,7 +5175,7 @@ static void pmcraid_release_buffers(struct pmcraid_instance *pinstance) * Return Value * 0 in case all of the blocks are allocated, -ENOMEM otherwise. */ -static int __devinit pmcraid_init_buffers(struct pmcraid_instance *pinstance) +static int pmcraid_init_buffers(struct pmcraid_instance *pinstance) { int i; @@ -5204,6 +5218,20 @@ static int __devinit pmcraid_init_buffers(struct pmcraid_instance *pinstance) return -ENOMEM; } + /* allocate DMAable memory for set timestamp data buffer */ + pinstance->timestamp_data = pci_alloc_consistent( + pinstance->pdev, + sizeof(struct pmcraid_timestamp_data), + &pinstance->timestamp_data_baddr); + + if (pinstance->timestamp_data == NULL) { + pmcraid_err("couldn't allocate DMA memory for \ + set time_stamp \n"); + pmcraid_release_buffers(pinstance); + return -ENOMEM; + } + + /* Initialize all the command blocks and add them to free pool. No * need to lock (free_pool_lock) as this is done in initialization * itself @@ -5247,11 +5275,8 @@ static void pmcraid_reinit_buffers(struct pmcraid_instance *pinstance) * Return Value * 0 on success, non-zero in case of any failure */ -static int __devinit pmcraid_init_instance( - struct pci_dev *pdev, - struct Scsi_Host *host, - void __iomem *mapped_pci_addr -) +static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host, + void __iomem *mapped_pci_addr) { struct pmcraid_instance *pinstance = (struct pmcraid_instance *)host->hostdata; @@ -5408,7 +5433,7 @@ static void pmcraid_release_chrdev(struct pmcraid_instance *pinstance) * Return value * none */ -static void __devexit pmcraid_remove(struct pci_dev *pdev) +static void pmcraid_remove(struct pci_dev *pdev) { struct pmcraid_instance *pinstance = pci_get_drvdata(pdev); @@ -5425,7 +5450,7 @@ static void __devexit pmcraid_remove(struct pci_dev *pdev) pmcraid_shutdown(pdev); pmcraid_disable_interrupts(pinstance, ~0); - flush_scheduled_work(); + flush_work(&pinstance->worker_q); pmcraid_kill_tasklets(pinstance); pmcraid_unregister_interrupt_handler(pinstance); @@ -5609,6 +5634,68 @@ static void pmcraid_set_supported_devs(struct pmcraid_cmd *cmd) } /** + * pmcraid_set_timestamp - set the timestamp to IOAFP + * + * @cmd: pointer to pmcraid_cmd structure + * + * Return Value + * 0 for success or non-zero for failure cases + */ +static void pmcraid_set_timestamp(struct pmcraid_cmd *cmd) +{ + struct pmcraid_instance *pinstance = cmd->drv_inst; + struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb; + __be32 time_stamp_len = cpu_to_be32(PMCRAID_TIMESTAMP_LEN); + struct pmcraid_ioadl_desc *ioadl = ioarcb->add_data.u.ioadl; + + struct timeval tv; + __le64 timestamp; + + do_gettimeofday(&tv); + timestamp = tv.tv_sec * 1000; + + pinstance->timestamp_data->timestamp[0] = (__u8)(timestamp); + pinstance->timestamp_data->timestamp[1] = (__u8)((timestamp) >> 8); + pinstance->timestamp_data->timestamp[2] = (__u8)((timestamp) >> 16); + pinstance->timestamp_data->timestamp[3] = (__u8)((timestamp) >> 24); + pinstance->timestamp_data->timestamp[4] = (__u8)((timestamp) >> 32); + pinstance->timestamp_data->timestamp[5] = (__u8)((timestamp) >> 40); + + pmcraid_reinit_cmdblk(cmd); + ioarcb->request_type = REQ_TYPE_SCSI; + ioarcb->resource_handle = cpu_to_le32(PMCRAID_IOA_RES_HANDLE); + ioarcb->cdb[0] = PMCRAID_SCSI_SET_TIMESTAMP; + ioarcb->cdb[1] = PMCRAID_SCSI_SERVICE_ACTION; + memcpy(&(ioarcb->cdb[6]), &time_stamp_len, sizeof(time_stamp_len)); + + ioarcb->ioadl_bus_addr = cpu_to_le64((cmd->ioa_cb_bus_addr) + + offsetof(struct pmcraid_ioarcb, + add_data.u.ioadl[0])); + ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc)); + ioarcb->ioarcb_bus_addr &= ~(0x1FULL); + + ioarcb->request_flags0 |= NO_LINK_DESCS; + ioarcb->request_flags0 |= TRANSFER_DIR_WRITE; + ioarcb->data_transfer_length = + cpu_to_le32(sizeof(struct pmcraid_timestamp_data)); + ioadl = &(ioarcb->add_data.u.ioadl[0]); + ioadl->flags = IOADL_FLAGS_LAST_DESC; + ioadl->address = cpu_to_le64(pinstance->timestamp_data_baddr); + ioadl->data_len = cpu_to_le32(sizeof(struct pmcraid_timestamp_data)); + + if (!pinstance->timestamp_error) { + pinstance->timestamp_error = 0; + pmcraid_send_cmd(cmd, pmcraid_set_supported_devs, + PMCRAID_INTERNAL_TIMEOUT, pmcraid_timeout_handler); + } else { + pmcraid_send_cmd(cmd, pmcraid_return_cmd, + PMCRAID_INTERNAL_TIMEOUT, pmcraid_timeout_handler); + return; + } +} + + +/** * pmcraid_init_res_table - Initialize the resource table * @cmd: pointer to pmcraid command struct * @@ -5719,7 +5806,7 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd) /* release the resource list lock */ spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags); - pmcraid_set_supported_devs(cmd); + pmcraid_set_timestamp(cmd); } /** @@ -5787,10 +5874,8 @@ static void pmcraid_querycfg(struct pmcraid_cmd *cmd) * returns 0 if the device is claimed and successfully configured. * returns non-zero error code in case of any failure */ -static int __devinit pmcraid_probe( - struct pci_dev *pdev, - const struct pci_device_id *dev_id -) +static int pmcraid_probe(struct pci_dev *pdev, + const struct pci_device_id *dev_id) { struct pmcraid_instance *pinstance; struct Scsi_Host *host; @@ -5841,7 +5926,7 @@ static int __devinit pmcraid_probe( * However, firmware supports 64-bit streaming DMA buffers, whereas * coherent buffers are to be 32-bit. Since pci_alloc_consistent always * returns memory within 4GB (if not, change this logic), coherent - * buffers are within firmware acceptible address ranges. + * buffers are within firmware acceptable address ranges. */ if ((sizeof(dma_addr_t) == 4) || pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) @@ -5976,7 +6061,6 @@ out_release_regions: out_disable_device: atomic_dec(&pmcraid_adapter_count); - pci_set_drvdata(pdev, NULL); pci_disable_device(pdev); return -ENODEV; } @@ -6002,9 +6086,8 @@ static int __init pmcraid_init(void) dev_t dev; int error; - pmcraid_info("%s Device Driver version: %s %s\n", - PMCRAID_DRIVER_NAME, - PMCRAID_DRIVER_VERSION, PMCRAID_DRIVER_DATE); + pmcraid_info("%s Device Driver version: %s\n", + PMCRAID_DRIVER_NAME, PMCRAID_DRIVER_VERSION); error = alloc_chrdev_region(&dev, 0, PMCRAID_MAX_ADAPTERS, @@ -6020,7 +6103,7 @@ static int __init pmcraid_init(void) if (IS_ERR(pmcraid_class)) { error = PTR_ERR(pmcraid_class); - pmcraid_err("failed to register with with sysfs, error = %x\n", + pmcraid_err("failed to register with sysfs, error = %x\n", error); goto out_unreg_chrdev; } @@ -6053,10 +6136,10 @@ out_init: static void __exit pmcraid_exit(void) { pmcraid_netlink_release(); - class_destroy(pmcraid_class); unregister_chrdev_region(MKDEV(pmcraid_major, 0), PMCRAID_MAX_ADAPTERS); pci_unregister_driver(&pmcraid_driver); + class_destroy(pmcraid_class); } module_init(pmcraid_init); |