| Message ID | 20230710214442.6718-6-michael.christie@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | scsi: target: Allow userspace to config cmd submission | expand |
On Mon, Jul 10, 2023 at 04:44:42PM -0500, Mike Christie wrote: > +static ssize_t > +target_fabric_wwn_default_to_direct_submit_show(struct config_item *item, > + char *page) > +{ > + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, > + param_group); > + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->default_direct_submit); I belive we should do the right thing and use sysfs_emit() here. We already have a bunch of issues with bad sprintf() usage and I think it would be wise to promote safer interfaces. > +static ssize_t > +target_fabric_wwn_direct_submit_supported_show(struct config_item *item, > + char *page) > +{ > + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, > + param_group); > + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->direct_submit_supp); Same.
On 7/13/23 8:06 AM, Konstantin Shelekhin wrote: > On Mon, Jul 10, 2023 at 04:44:42PM -0500, Mike Christie wrote: >> +static ssize_t >> +target_fabric_wwn_default_to_direct_submit_show(struct config_item *item, >> + char *page) >> +{ >> + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, >> + param_group); >> + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->default_direct_submit); > > I belive we should do the right thing and use sysfs_emit() here. We > already have a bunch of issues with bad sprintf() usage and I think it > would be wise to promote safer interfaces. You're right. Forgot about that function. Will fix. Thanks. > >> +static ssize_t >> +target_fabric_wwn_direct_submit_supported_show(struct config_item *item, >> + char *page) >> +{ >> + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, >> + param_group); >> + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->direct_submit_supp); > > Same.
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index b7c637644cd4..6fd6a9135dca 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -1065,8 +1065,30 @@ target_fabric_wwn_cmd_completion_affinity_store(struct config_item *item, } CONFIGFS_ATTR(target_fabric_wwn_, cmd_completion_affinity); +static ssize_t +target_fabric_wwn_default_to_direct_submit_show(struct config_item *item, + char *page) +{ + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, + param_group); + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->default_direct_submit); +} +CONFIGFS_ATTR_RO(target_fabric_wwn_, default_to_direct_submit); + +static ssize_t +target_fabric_wwn_direct_submit_supported_show(struct config_item *item, + char *page) +{ + struct se_wwn *wwn = container_of(to_config_group(item), struct se_wwn, + param_group); + return sprintf(page, "%u\n", wwn->wwn_tf->tf_ops->direct_submit_supp); +} +CONFIGFS_ATTR_RO(target_fabric_wwn_, direct_submit_supported); + static struct configfs_attribute *target_fabric_wwn_param_attrs[] = { &target_fabric_wwn_attr_cmd_completion_affinity, + &target_fabric_wwn_attr_default_to_direct_submit, + &target_fabric_wwn_attr_direct_submit_supported, NULL, };
This exports the fabric driver's direct submit settings, so users know what the driver supports. It will be helpful when they are exporting a device through different targets and one doesn't support direct submission. Signed-off-by: Mike Christie <michael.christie@oracle.com> --- drivers/target/target_core_fabric_configfs.c | 22 ++++++++++++++++++++ 1 file changed, 22 insertions(+)