diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index fc25cd83466..47c9ecfc1d8 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -319,6 +319,83 @@ qla2x00_state_show(struct class_device *cdev, char *buf) return len; } +static ssize_t +qla2x00_zio_show(struct class_device *cdev, char *buf) +{ + scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); + int len = 0; + + switch (ha->zio_mode) { + case QLA_ZIO_MODE_5: + len += snprintf(buf + len, PAGE_SIZE-len, "Mode 5\n"); + break; + case QLA_ZIO_MODE_6: + len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n"); + break; + case QLA_ZIO_DISABLED: + len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n"); + break; + } + return len; +} + +static ssize_t +qla2x00_zio_store(struct class_device *cdev, const char *buf, size_t count) +{ + scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); + int val = 0; + uint16_t zio_mode; + + if (sscanf(buf, "%d", &val) != 1) + return -EINVAL; + + switch (val) { + case 1: + zio_mode = QLA_ZIO_MODE_5; + break; + case 2: + zio_mode = QLA_ZIO_MODE_6; + break; + default: + zio_mode = QLA_ZIO_DISABLED; + break; + } + + /* Update per-hba values and queue a reset. */ + if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) { + ha->zio_mode = zio_mode; + set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + } + return strlen(buf); +} + +static ssize_t +qla2x00_zio_timer_show(struct class_device *cdev, char *buf) +{ + scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); + + return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100); +} + +static ssize_t +qla2x00_zio_timer_store(struct class_device *cdev, const char *buf, + size_t count) +{ + scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); + int val = 0; + uint16_t zio_timer; + + if (sscanf(buf, "%d", &val) != 1) + return -EINVAL; + if (val > 25500 || val < 100) + return -ERANGE; + + zio_timer = (uint16_t)(val / 100); + ha->zio_timer = zio_timer; + + return strlen(buf); +} + static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL); static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL); @@ -329,6 +406,10 @@ static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL); static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL); static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL); static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL); +static CLASS_DEVICE_ATTR(zio, S_IRUGO | S_IWUSR, qla2x00_zio_show, + qla2x00_zio_store); +static CLASS_DEVICE_ATTR(zio_timer, S_IRUGO | S_IWUSR, qla2x00_zio_timer_show, + qla2x00_zio_timer_store); struct class_device_attribute *qla2x00_host_attrs[] = { &class_device_attr_driver_version, @@ -340,6 +421,8 @@ struct class_device_attribute *qla2x00_host_attrs[] = { &class_device_attr_model_desc, &class_device_attr_pci_info, &class_device_attr_state, + &class_device_attr_zio, + &class_device_attr_zio_timer, NULL, }; |