1 #ifndef TARGET_CORE_BACKEND_CONFIGFS_H 2 #define TARGET_CORE_BACKEND_CONFIGFS_H 3 4 #include <target/configfs_macros.h> 5 6 #define DEF_TB_DEV_ATTRIB_SHOW(_backend, _name) \ 7 static ssize_t _backend##_dev_show_attr_##_name( \ 8 struct se_dev_attrib *da, \ 9 char *page) \ 10 { \ 11 return snprintf(page, PAGE_SIZE, "%u\n", \ 12 (u32)da->da_dev->dev_attrib._name); \ 13 } 14 15 #define DEF_TB_DEV_ATTRIB_STORE(_backend, _name) \ 16 static ssize_t _backend##_dev_store_attr_##_name( \ 17 struct se_dev_attrib *da, \ 18 const char *page, \ 19 size_t count) \ 20 { \ 21 unsigned long val; \ 22 int ret; \ 23 \ 24 ret = kstrtoul(page, 0, &val); \ 25 if (ret < 0) { \ 26 pr_err("kstrtoul() failed with ret: %d\n", ret); \ 27 return -EINVAL; \ 28 } \ 29 ret = se_dev_set_##_name(da->da_dev, (u32)val); \ 30 \ 31 return (!ret) ? count : -EINVAL; \ 32 } 33 34 #define DEF_TB_DEV_ATTRIB(_backend, _name) \ 35 DEF_TB_DEV_ATTRIB_SHOW(_backend, _name); \ 36 DEF_TB_DEV_ATTRIB_STORE(_backend, _name); 37 38 #define DEF_TB_DEV_ATTRIB_RO(_backend, name) \ 39 DEF_TB_DEV_ATTRIB_SHOW(_backend, name); 40 41 CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib); 42 #define TB_DEV_ATTR(_backend, _name, _mode) \ 43 static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \ 44 __CONFIGFS_EATTR(_name, _mode, \ 45 _backend##_dev_show_attr_##_name, \ 46 _backend##_dev_store_attr_##_name); 47 48 #define TB_DEV_ATTR_RO(_backend, _name) \ 49 static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \ 50 __CONFIGFS_EATTR_RO(_name, \ 51 _backend##_dev_show_attr_##_name); 52 53 /* 54 * Default list of target backend device attributes as defined by 55 * struct se_dev_attrib 56 */ 57 58 #define DEF_TB_DEFAULT_ATTRIBS(_backend) \ 59 DEF_TB_DEV_ATTRIB(_backend, emulate_model_alias); \ 60 TB_DEV_ATTR(_backend, emulate_model_alias, S_IRUGO | S_IWUSR); \ 61 DEF_TB_DEV_ATTRIB(_backend, emulate_dpo); \ 62 TB_DEV_ATTR(_backend, emulate_dpo, S_IRUGO | S_IWUSR); \ 63 DEF_TB_DEV_ATTRIB(_backend, emulate_fua_write); \ 64 TB_DEV_ATTR(_backend, emulate_fua_write, S_IRUGO | S_IWUSR); \ 65 DEF_TB_DEV_ATTRIB(_backend, emulate_fua_read); \ 66 TB_DEV_ATTR(_backend, emulate_fua_read, S_IRUGO | S_IWUSR); \ 67 DEF_TB_DEV_ATTRIB(_backend, emulate_write_cache); \ 68 TB_DEV_ATTR(_backend, emulate_write_cache, S_IRUGO | S_IWUSR); \ 69 DEF_TB_DEV_ATTRIB(_backend, emulate_ua_intlck_ctrl); \ 70 TB_DEV_ATTR(_backend, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); \ 71 DEF_TB_DEV_ATTRIB(_backend, emulate_tas); \ 72 TB_DEV_ATTR(_backend, emulate_tas, S_IRUGO | S_IWUSR); \ 73 DEF_TB_DEV_ATTRIB(_backend, emulate_tpu); \ 74 TB_DEV_ATTR(_backend, emulate_tpu, S_IRUGO | S_IWUSR); \ 75 DEF_TB_DEV_ATTRIB(_backend, emulate_tpws); \ 76 TB_DEV_ATTR(_backend, emulate_tpws, S_IRUGO | S_IWUSR); \ 77 DEF_TB_DEV_ATTRIB(_backend, emulate_caw); \ 78 TB_DEV_ATTR(_backend, emulate_caw, S_IRUGO | S_IWUSR); \ 79 DEF_TB_DEV_ATTRIB(_backend, emulate_3pc); \ 80 TB_DEV_ATTR(_backend, emulate_3pc, S_IRUGO | S_IWUSR); \ 81 DEF_TB_DEV_ATTRIB(_backend, pi_prot_type); \ 82 TB_DEV_ATTR(_backend, pi_prot_type, S_IRUGO | S_IWUSR); \ 83 DEF_TB_DEV_ATTRIB_RO(_backend, hw_pi_prot_type); \ 84 TB_DEV_ATTR_RO(_backend, hw_pi_prot_type); \ 85 DEF_TB_DEV_ATTRIB(_backend, pi_prot_format); \ 86 TB_DEV_ATTR(_backend, pi_prot_format, S_IRUGO | S_IWUSR); \ 87 DEF_TB_DEV_ATTRIB(_backend, enforce_pr_isids); \ 88 TB_DEV_ATTR(_backend, enforce_pr_isids, S_IRUGO | S_IWUSR); \ 89 DEF_TB_DEV_ATTRIB(_backend, is_nonrot); \ 90 TB_DEV_ATTR(_backend, is_nonrot, S_IRUGO | S_IWUSR); \ 91 DEF_TB_DEV_ATTRIB(_backend, emulate_rest_reord); \ 92 TB_DEV_ATTR(_backend, emulate_rest_reord, S_IRUGO | S_IWUSR); \ 93 DEF_TB_DEV_ATTRIB(_backend, force_pr_aptpl); \ 94 TB_DEV_ATTR(_backend, force_pr_aptpl, S_IRUGO | S_IWUSR); \ 95 DEF_TB_DEV_ATTRIB_RO(_backend, hw_block_size); \ 96 TB_DEV_ATTR_RO(_backend, hw_block_size); \ 97 DEF_TB_DEV_ATTRIB(_backend, block_size); \ 98 TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR); \ 99 DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors); \ 100 TB_DEV_ATTR_RO(_backend, hw_max_sectors); \ 101 DEF_TB_DEV_ATTRIB(_backend, optimal_sectors); \ 102 TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR); \ 103 DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth); \ 104 TB_DEV_ATTR_RO(_backend, hw_queue_depth); \ 105 DEF_TB_DEV_ATTRIB(_backend, queue_depth); \ 106 TB_DEV_ATTR(_backend, queue_depth, S_IRUGO | S_IWUSR); \ 107 DEF_TB_DEV_ATTRIB(_backend, max_unmap_lba_count); \ 108 TB_DEV_ATTR(_backend, max_unmap_lba_count, S_IRUGO | S_IWUSR); \ 109 DEF_TB_DEV_ATTRIB(_backend, max_unmap_block_desc_count); \ 110 TB_DEV_ATTR(_backend, max_unmap_block_desc_count, S_IRUGO | S_IWUSR); \ 111 DEF_TB_DEV_ATTRIB(_backend, unmap_granularity); \ 112 TB_DEV_ATTR(_backend, unmap_granularity, S_IRUGO | S_IWUSR); \ 113 DEF_TB_DEV_ATTRIB(_backend, unmap_granularity_alignment); \ 114 TB_DEV_ATTR(_backend, unmap_granularity_alignment, S_IRUGO | S_IWUSR); \ 115 DEF_TB_DEV_ATTRIB(_backend, max_write_same_len); \ 116 TB_DEV_ATTR(_backend, max_write_same_len, S_IRUGO | S_IWUSR); 117 118 #endif /* TARGET_CORE_BACKEND_CONFIGFS_H */ 119