diff options
Diffstat (limited to 'drivers/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index a9a464c728dd..3128407b407d 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -498,6 +498,10 @@ struct ipr_error_table_t ipr_error_table[] = { "4061: Multipath redundancy level got better"}, {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, "4060: Multipath redundancy level got worse"}, + {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL, + "9083: Device raw mode enabled"}, + {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL, + "9084: Device raw mode disabled"}, {0x07270000, 0, 0, "Failure due to other device"}, {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, @@ -4496,11 +4500,83 @@ static struct device_attribute ipr_resource_type_attr = { .show = ipr_show_resource_type }; +/** + * ipr_show_raw_mode - Show the adapter's raw mode + * @dev: class device struct + * @buf: buffer + * + * Return value: + * number of bytes printed to buffer + **/ +static ssize_t ipr_show_raw_mode(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; + struct ipr_resource_entry *res; + unsigned long lock_flags = 0; + ssize_t len; + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + res = (struct ipr_resource_entry *)sdev->hostdata; + if (res) + len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode); + else + len = -ENXIO; + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return len; +} + +/** + * ipr_store_raw_mode - Change the adapter's raw mode + * @dev: class device struct + * @buf: buffer + * + * Return value: + * number of bytes printed to buffer + **/ +static ssize_t ipr_store_raw_mode(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; + struct ipr_resource_entry *res; + unsigned long lock_flags = 0; + ssize_t len; + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + res = (struct ipr_resource_entry *)sdev->hostdata; + if (res) { + if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) { + res->raw_mode = simple_strtoul(buf, NULL, 10); + len = strlen(buf); + if (res->sdev) + sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n", + res->raw_mode ? "enabled" : "disabled"); + } else + len = -EINVAL; + } else + len = -ENXIO; + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return len; +} + +static struct device_attribute ipr_raw_mode_attr = { + .attr = { + .name = "raw_mode", + .mode = S_IRUGO | S_IWUSR, + }, + .show = ipr_show_raw_mode, + .store = ipr_store_raw_mode +}; + static struct device_attribute *ipr_dev_attrs[] = { &ipr_adapter_handle_attr, &ipr_resource_path_attr, &ipr_device_id_attr, &ipr_resource_type_attr, + &ipr_raw_mode_attr, NULL, }; @@ -6152,6 +6228,13 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, break; case IPR_IOASC_NR_INIT_CMD_REQUIRED: break; + case IPR_IOASC_IR_NON_OPTIMIZED: + if (res->raw_mode) { + res->raw_mode = 0; + scsi_cmd->result |= (DID_IMM_RETRY << 16); + } else + scsi_cmd->result |= (DID_ERROR << 16); + break; default: if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) scsi_cmd->result |= (DID_ERROR << 16); @@ -6291,6 +6374,8 @@ static int ipr_queuecommand(struct Scsi_Host *shost, (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; } + if (res->raw_mode && ipr_is_af_dasd_device(res)) + ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; if (ioa_cfg->sis64) rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); |