#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
#include "tcm_loop.h"
#define to_tcm_loop_hba(hba) container_of(hba, struct tcm_loop_hba, dev)
-static const struct target_core_fabric_ops loop_ops;
-
static struct workqueue_struct *tcm_loop_workqueue;
static struct kmem_cache *tcm_loop_cmd_cache;
transfer_length = scsi_bufflen(sc);
}
+ se_cmd->tag = tl_cmd->sc_cmd_tag;
rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd,
&tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun,
transfer_length, TCM_SIMPLE_TAG,
* to struct scsi_device
*/
static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
- int lun, int task, enum tcm_tmreq_table tmr)
+ u64 lun, int task, enum tcm_tmreq_table tmr)
{
struct se_cmd *se_cmd = NULL;
struct se_session *se_sess;
.use_clustering = DISABLE_CLUSTERING,
.slave_alloc = tcm_loop_slave_alloc,
.module = THIS_MODULE,
- .use_blk_tags = 1,
.track_queue_depth = 1,
};
sh->max_id = 2;
sh->max_lun = 0;
sh->max_channel = 0;
- sh->max_cmd_len = TL_SCSI_MAX_CMD_LEN;
+ sh->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
host_prot = SHOST_DIF_TYPE1_PROTECTION | SHOST_DIF_TYPE2_PROTECTION |
SHOST_DIF_TYPE3_PROTECTION | SHOST_DIX_TYPE1_PROTECTION |
return "loopback";
}
-static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
+static inline struct tcm_loop_tpg *tl_tpg(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
- /*
- * tl_proto_id is set at tcm_loop_configfs.c:tcm_loop_make_scsi_hba()
- * time based on the protocol dependent prefix of the passed configfs group.
- *
- * Based upon tl_proto_id, TCM_Loop emulates the requested fabric
- * ProtocolID using target_core_fabric_lib.c symbols.
- */
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_FCP:
- return fc_get_fabric_proto_ident(se_tpg);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_fabric_proto_ident(se_tpg);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_fabric_proto_ident(se_tpg);
+ return container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg);
}
static char *tcm_loop_get_endpoint_wwn(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
- * Return the passed NAA identifier for the SAS Target Port
+ * Return the passed NAA identifier for the Target Port
*/
- return &tl_tpg->tl_hba->tl_wwn_address[0];
+ return &tl_tpg(se_tpg)->tl_hba->tl_wwn_address[0];
}
static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
/*
* This Tag is used when forming SCSI Name identifier in EVPD=1 0x83
* to represent the SCSI Target Port.
*/
- return tl_tpg->tl_tpgt;
-}
-
-static u32 tcm_loop_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 tcm_loop_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
-}
-
-static u32 tcm_loop_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_FCP:
- return fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
-}
-
-/*
- * Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
- * Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
- */
-static char *tcm_loop_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct tcm_loop_tpg *tl_tpg = se_tpg->se_tpg_fabric_ptr;
- struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
-
- switch (tl_hba->tl_proto_id) {
- case SCSI_PROTOCOL_SAS:
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_FCP:
- return fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- case SCSI_PROTOCOL_ISCSI:
- return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- default:
- pr_err("Unknown tl_proto_id: 0x%02x, using"
- " SAS emulation\n", tl_hba->tl_proto_id);
- break;
- }
-
- return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
+ return tl_tpg(se_tpg)->tl_tpgt;
}
/*
return tl_tpg->tl_fabric_prot_type;
}
-static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl(
- struct se_portal_group *se_tpg)
-{
- struct tcm_loop_nacl *tl_nacl;
-
- tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL);
- if (!tl_nacl) {
- pr_err("Unable to allocate struct tcm_loop_nacl\n");
- return NULL;
- }
-
- return &tl_nacl->se_node_acl;
-}
-
-static void tcm_loop_tpg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct tcm_loop_nacl *tl_nacl = container_of(se_nacl,
- struct tcm_loop_nacl, se_node_acl);
-
- kfree(tl_nacl);
-}
-
static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
return;
}
-static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
-{
- struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
- struct tcm_loop_cmd, tl_se_cmd);
-
- return tl_cmd->sc_cmd_tag;
-}
-
static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
{
struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
se_lun->unpacked_lun);
if (!sd) {
pr_err("Unable to locate struct scsi_device for %d:%d:"
- "%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
+ "%llu\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
return;
}
/*
/* End items for tcm_loop_port_cit */
-static ssize_t tcm_loop_tpg_attrib_show_fabric_prot_type(
- struct se_portal_group *se_tpg,
- char *page)
+static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_show(
+ struct config_item *item, char *page)
{
+ struct se_portal_group *se_tpg = attrib_to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg,
tl_se_tpg);
return sprintf(page, "%d\n", tl_tpg->tl_fabric_prot_type);
}
-static ssize_t tcm_loop_tpg_attrib_store_fabric_prot_type(
- struct se_portal_group *se_tpg,
- const char *page,
- size_t count)
+static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_store(
+ struct config_item *item, const char *page, size_t count)
{
+ struct se_portal_group *se_tpg = attrib_to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg,
tl_se_tpg);
unsigned long val;
return count;
}
-TF_TPG_ATTRIB_ATTR(tcm_loop, fabric_prot_type, S_IRUGO | S_IWUSR);
+CONFIGFS_ATTR(tcm_loop_tpg_attrib_, fabric_prot_type);
static struct configfs_attribute *tcm_loop_tpg_attrib_attrs[] = {
- &tcm_loop_tpg_attrib_fabric_prot_type.attr,
+ &tcm_loop_tpg_attrib_attr_fabric_prot_type,
NULL,
};
transport_free_session(tl_nexus->se_sess);
goto out;
}
- /* Now, register the SAS I_T Nexus as active. */
+ /* Now, register the I_T Nexus as active. */
transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
tl_nexus->se_sess, tl_nexus);
tl_tpg->tl_nexus = tl_nexus;
" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tpg->tl_hba),
tl_nexus->se_sess->se_node_acl->initiatorname);
/*
- * Release the SCSI I_T Nexus to the emulated SAS Target Port
+ * Release the SCSI I_T Nexus to the emulated Target Port
*/
transport_deregister_session(tl_nexus->se_sess);
tpg->tl_nexus = NULL;
/* End items for tcm_loop_nexus_cit */
-static ssize_t tcm_loop_tpg_show_nexus(
- struct se_portal_group *se_tpg,
- char *page)
+static ssize_t tcm_loop_tpg_nexus_show(struct config_item *item, char *page)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
struct tcm_loop_tpg, tl_se_tpg);
struct tcm_loop_nexus *tl_nexus;
return ret;
}
-static ssize_t tcm_loop_tpg_store_nexus(
- struct se_portal_group *se_tpg,
- const char *page,
- size_t count)
+static ssize_t tcm_loop_tpg_nexus_store(struct config_item *item,
+ const char *page, size_t count)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
struct tcm_loop_tpg, tl_se_tpg);
struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba;
return count;
}
-TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR);
-
-static ssize_t tcm_loop_tpg_show_transport_status(
- struct se_portal_group *se_tpg,
- char *page)
+static ssize_t tcm_loop_tpg_transport_status_show(struct config_item *item,
+ char *page)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
struct tcm_loop_tpg, tl_se_tpg);
const char *status = NULL;
return ret;
}
-static ssize_t tcm_loop_tpg_store_transport_status(
- struct se_portal_group *se_tpg,
- const char *page,
- size_t count)
+static ssize_t tcm_loop_tpg_transport_status_store(struct config_item *item,
+ const char *page, size_t count)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
struct tcm_loop_tpg, tl_se_tpg);
}
if (!strncmp(page, "offline", 7)) {
tl_tpg->tl_transport_status = TCM_TRANSPORT_OFFLINE;
+ if (tl_tpg->tl_nexus) {
+ struct se_session *tl_sess = tl_tpg->tl_nexus->se_sess;
+
+ core_allocate_nexus_loss_ua(tl_sess->se_node_acl);
+ }
return count;
}
return -EINVAL;
}
-TF_TPG_BASE_ATTR(tcm_loop, transport_status, S_IRUGO | S_IWUSR);
+CONFIGFS_ATTR(tcm_loop_tpg_, nexus);
+CONFIGFS_ATTR(tcm_loop_tpg_, transport_status);
static struct configfs_attribute *tcm_loop_tpg_attrs[] = {
- &tcm_loop_tpg_nexus.attr,
- &tcm_loop_tpg_transport_status.attr,
+ &tcm_loop_tpg_attr_nexus,
+ &tcm_loop_tpg_attr_transport_status,
NULL,
};
tl_tpg->tl_hba = tl_hba;
tl_tpg->tl_tpgt = tpgt;
/*
- * Register the tl_tpg as a emulated SAS TCM Target Endpoint
+ * Register the tl_tpg as a emulated TCM Target Endpoint
*/
- ret = core_tpg_register(&loop_ops, wwn, &tl_tpg->tl_se_tpg, tl_tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ ret = core_tpg_register(wwn, &tl_tpg->tl_se_tpg, tl_hba->tl_proto_id);
if (ret < 0)
return ERR_PTR(-ENOMEM);
tl_hba = tl_tpg->tl_hba;
tpgt = tl_tpg->tl_tpgt;
/*
- * Release the I_T Nexus for the Virtual SAS link if present
+ * Release the I_T Nexus for the Virtual target link if present
*/
tcm_loop_drop_nexus(tl_tpg);
/*
- * Deregister the tl_tpg as a emulated SAS TCM Target Endpoint
+ * Deregister the tl_tpg as a emulated TCM Target Endpoint
*/
core_tpg_deregister(se_tpg);
struct tcm_loop_hba, tl_hba_wwn);
pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target"
- " SAS Address: %s at Linux/SCSI Host ID: %d\n",
- tl_hba->tl_wwn_address, tl_hba->sh->host_no);
+ " %s Address: %s at Linux/SCSI Host ID: %d\n",
+ tcm_loop_dump_proto_id(tl_hba), tl_hba->tl_wwn_address,
+ tl_hba->sh->host_no);
/*
* Call device_unregister() on the original tl_hba->dev.
* tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will
}
/* Start items for tcm_loop_cit */
-static ssize_t tcm_loop_wwn_show_attr_version(
- struct target_fabric_configfs *tf,
- char *page)
+static ssize_t tcm_loop_wwn_version_show(struct config_item *item, char *page)
{
return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION);
}
-TF_WWN_ATTR_RO(tcm_loop, version);
+CONFIGFS_ATTR_RO(tcm_loop_wwn_, version);
static struct configfs_attribute *tcm_loop_wwn_attrs[] = {
- &tcm_loop_wwn_version.attr,
+ &tcm_loop_wwn_attr_version,
NULL,
};
.module = THIS_MODULE,
.name = "loopback",
.get_fabric_name = tcm_loop_get_fabric_name,
- .get_fabric_proto_ident = tcm_loop_get_fabric_proto_ident,
.tpg_get_wwn = tcm_loop_get_endpoint_wwn,
.tpg_get_tag = tcm_loop_get_tag,
- .tpg_get_default_depth = tcm_loop_get_default_depth,
- .tpg_get_pr_transport_id = tcm_loop_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = tcm_loop_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = tcm_loop_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_loop_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_loop_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
.tpg_check_prod_mode_write_protect =
tcm_loop_check_prod_mode_write_protect,
.tpg_check_prot_fabric_only = tcm_loop_check_prot_fabric_only,
- .tpg_alloc_fabric_acl = tcm_loop_tpg_alloc_fabric_acl,
- .tpg_release_fabric_acl = tcm_loop_tpg_release_fabric_acl,
.tpg_get_inst_index = tcm_loop_get_inst_index,
.check_stop_free = tcm_loop_check_stop_free,
.release_cmd = tcm_loop_release_cmd,
.write_pending = tcm_loop_write_pending,
.write_pending_status = tcm_loop_write_pending_status,
.set_default_node_attributes = tcm_loop_set_default_node_attributes,
- .get_task_tag = tcm_loop_get_task_tag,
.get_cmd_state = tcm_loop_get_cmd_state,
.queue_data_in = tcm_loop_queue_data_in,
.queue_status = tcm_loop_queue_status,
Code Review / kvmfornfv.git / blobdiff