diff options
Diffstat (limited to 'drivers/scsi/pmcraid.c')
| -rw-r--r-- | drivers/scsi/pmcraid.c | 129 |
1 files changed, 110 insertions, 19 deletions
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index 4b8765785ae..cf89091e4c3 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -1594,10 +1594,12 @@ 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 +1852,7 @@ 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 +1884,10 @@ 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); @@ -3363,7 +3370,7 @@ 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); @@ -3739,6 +3746,7 @@ 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 +3788,11 @@ 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; @@ -3947,22 +3960,14 @@ 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 @@ -5147,6 +5152,16 @@ 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; + } } /** @@ -5205,6 +5220,20 @@ 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 @@ -5610,6 +5639,68 @@ 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 * @@ -5720,7 +5811,7 @@ 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); } /** @@ -6054,10 +6145,10 @@ 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); |