-int se_dev_set_fabric_max_sectors(struct se_device *dev, u32 fabric_max_sectors)
-{
- int block_size = dev->dev_attrib.block_size;
-
- if (dev->export_count) {
- pr_err("dev[%p]: Unable to change SE Device"
- " fabric_max_sectors while export_count is %d\n",
- dev, dev->export_count);
- return -EINVAL;
- }
- if (!fabric_max_sectors) {
- pr_err("dev[%p]: Illegal ZERO value for"
- " fabric_max_sectors\n", dev);
- return -EINVAL;
- }
- if (fabric_max_sectors < DA_STATUS_MAX_SECTORS_MIN) {
- pr_err("dev[%p]: Passed fabric_max_sectors: %u less than"
- " DA_STATUS_MAX_SECTORS_MIN: %u\n", dev, fabric_max_sectors,
- DA_STATUS_MAX_SECTORS_MIN);
- return -EINVAL;
- }
- if (fabric_max_sectors > DA_STATUS_MAX_SECTORS_MAX) {
- pr_err("dev[%p]: Passed fabric_max_sectors: %u"
- " greater than DA_STATUS_MAX_SECTORS_MAX:"
- " %u\n", dev, fabric_max_sectors,
- DA_STATUS_MAX_SECTORS_MAX);
- return -EINVAL;
- }
- /*
- * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks()
- */
- if (!block_size) {
- block_size = 512;
- pr_warn("Defaulting to 512 for zero block_size\n");
- }
- fabric_max_sectors = se_dev_align_max_sectors(fabric_max_sectors,
- block_size);
-
- dev->dev_attrib.fabric_max_sectors = fabric_max_sectors;
- pr_debug("dev[%p]: SE Device max_sectors changed to %u\n",
- dev, fabric_max_sectors);
- return 0;
-}
-EXPORT_SYMBOL(se_dev_set_fabric_max_sectors);
-