diff options
Diffstat (limited to 'drivers/target/target_core_configfs.c')
| -rw-r--r-- | drivers/target/target_core_configfs.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 70657fd56440..a34a86652b96 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -533,6 +533,7 @@ DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc); DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type); DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type); DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_format); +DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_verify); DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids); DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot); DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord); @@ -823,6 +824,7 @@ static ssize_t pi_prot_type_store(struct config_item *item, ret = dev->transport->init_prot(dev); if (ret) { da->pi_prot_type = old_prot; + da->pi_prot_verify = (bool) da->pi_prot_type; return ret; } @@ -830,6 +832,7 @@ static ssize_t pi_prot_type_store(struct config_item *item, dev->transport->free_prot(dev); } + da->pi_prot_verify = (bool) da->pi_prot_type; pr_debug("dev[%p]: SE Device Protection Type: %d\n", dev, flag); return count; } @@ -872,6 +875,35 @@ static ssize_t pi_prot_format_store(struct config_item *item, return count; } +static ssize_t pi_prot_verify_store(struct config_item *item, + const char *page, size_t count) +{ + struct se_dev_attrib *da = to_attrib(item); + bool flag; + int ret; + + ret = strtobool(page, &flag); + if (ret < 0) + return ret; + + if (!flag) { + da->pi_prot_verify = flag; + return count; + } + if (da->hw_pi_prot_type) { + pr_warn("DIF protection enabled on underlying hardware," + " ignoring\n"); + return count; + } + if (!da->pi_prot_type) { + pr_warn("DIF protection not supported by backend, ignoring\n"); + return count; + } + da->pi_prot_verify = flag; + + return count; +} + static ssize_t force_pr_aptpl_store(struct config_item *item, const char *page, size_t count) { @@ -1067,6 +1099,7 @@ CONFIGFS_ATTR(, emulate_3pc); CONFIGFS_ATTR(, pi_prot_type); CONFIGFS_ATTR_RO(, hw_pi_prot_type); CONFIGFS_ATTR(, pi_prot_format); +CONFIGFS_ATTR(, pi_prot_verify); CONFIGFS_ATTR(, enforce_pr_isids); CONFIGFS_ATTR(, is_nonrot); CONFIGFS_ATTR(, emulate_rest_reord); @@ -1104,6 +1137,7 @@ struct configfs_attribute *sbc_attrib_attrs[] = { &attr_pi_prot_type, &attr_hw_pi_prot_type, &attr_pi_prot_format, + &attr_pi_prot_verify, &attr_enforce_pr_isids, &attr_is_nonrot, &attr_emulate_rest_reord, |