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target: move transport ID handling to the core

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Now that struct se_portal_group contains a protocol identifier field we can
take all the code to format an parse protocol identifiers in CDBs into common
code instead of leaving this to low-level drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig 2015-05-01 17:47:58 +02:00 committed by Nicholas Bellinger
parent 2aeeafae6b
commit 2650d71e24
18 changed files with 173 additions and 875 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

121
Documentation/target/tcm_mod_builder.py
View File

@ -60,8 +60,6 @@ def tcm_mod_build_FC_include(fabric_mod_dir_var, fabric_mod_name):
buf += "};\n"
buf += "\n"
buf += "struct " + fabric_mod_name + "_lport {\n"
buf += " /* SCSI protocol the lport is providing */\n"
buf += " u8 lport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for FC Target Lport */\n"
buf += " u64 lport_wwpn;\n"
buf += " /* ASCII formatted WWPN for FC Target Lport */\n"
@ -105,8 +103,6 @@ def tcm_mod_build_SAS_include(fabric_mod_dir_var, fabric_mod_name):
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
buf += " /* SCSI protocol the tport is providing */\n"
buf += " u8 tport_proto_id;\n"
buf += " /* Binary World Wide unique Port Name for SAS Target port */\n"
buf += " u64 tport_wwpn;\n"
buf += " /* ASCII formatted WWPN for SAS Target port */\n"
@ -150,8 +146,6 @@ def tcm_mod_build_iSCSI_include(fabric_mod_dir_var, fabric_mod_name):
buf += " struct se_portal_group se_tpg;\n"
buf += "};\n\n"
buf += "struct " + fabric_mod_name + "_tport {\n"
buf += " /* SCSI protocol the tport is providing */\n"
buf += " u8 tport_proto_id;\n"
buf += " /* ASCII formatted TargetName for IQN */\n"
buf += " char tport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
buf += " /* Returned by " + fabric_mod_name + "_make_tport() */\n"
@ -303,9 +297,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += " .get_fabric_name = " + fabric_mod_name + "_get_fabric_name,\n"
buf += " .tpg_get_wwn = " + fabric_mod_name + "_get_fabric_wwn,\n"
buf += " .tpg_get_tag = " + fabric_mod_name + "_get_tag,\n"
buf += " .tpg_get_pr_transport_id = " + fabric_mod_name + "_get_pr_transport_id,\n"
buf += " .tpg_get_pr_transport_id_len = " + fabric_mod_name + "_get_pr_transport_id_len,\n"
buf += " .tpg_parse_pr_out_transport_id = " + fabric_mod_name + "_parse_pr_out_transport_id,\n"
buf += " .tpg_check_demo_mode = " + fabric_mod_name + "_check_false,\n"
buf += " .tpg_check_demo_mode_cache = " + fabric_mod_name + "_check_true,\n"
buf += " .tpg_check_demo_mode_write_protect = " + fabric_mod_name + "_check_true,\n"
@ -478,118 +469,6 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
buf += "}\n\n"
bufi += "u16 " + fabric_mod_name + "_get_tag(struct se_portal_group *);\n"
if re.search('get_pr_transport_id\)\(', fo):
buf += "u32 " + fabric_mod_name + "_get_pr_transport_id(\n"
buf += " struct se_portal_group *se_tpg,\n"
buf += " struct se_node_acl *se_nacl,\n"
buf += " struct t10_pr_registration *pr_reg,\n"
buf += " int *format_code,\n"
buf += " unsigned char *buf)\n"
buf += "{\n"
buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
buf += " int ret = 0;\n\n"
buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
if proto_ident == "FC":
buf += " case SCSI_PROTOCOL_FCP:\n"
buf += " default:\n"
buf += " ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code, buf);\n"
buf += " break;\n"
elif proto_ident == "SAS":
buf += " case SCSI_PROTOCOL_SAS:\n"
buf += " default:\n"
buf += " ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code, buf);\n"
buf += " break;\n"
elif proto_ident == "iSCSI":
buf += " case SCSI_PROTOCOL_ISCSI:\n"
buf += " default:\n"
buf += " ret = iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code, buf);\n"
buf += " break;\n"
buf += " }\n\n"
buf += " return ret;\n"
buf += "}\n\n"
bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id(struct se_portal_group *,\n"
bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
bufi += " int *, unsigned char *);\n"
if re.search('get_pr_transport_id_len\)\(', fo):
buf += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(\n"
buf += " struct se_portal_group *se_tpg,\n"
buf += " struct se_node_acl *se_nacl,\n"
buf += " struct t10_pr_registration *pr_reg,\n"
buf += " int *format_code)\n"
buf += "{\n"
buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
buf += " int ret = 0;\n\n"
buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
if proto_ident == "FC":
buf += " case SCSI_PROTOCOL_FCP:\n"
buf += " default:\n"
buf += " ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code);\n"
buf += " break;\n"
elif proto_ident == "SAS":
buf += " case SCSI_PROTOCOL_SAS:\n"
buf += " default:\n"
buf += " ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code);\n"
buf += " break;\n"
elif proto_ident == "iSCSI":
buf += " case SCSI_PROTOCOL_ISCSI:\n"
buf += " default:\n"
buf += " ret = iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
buf += " format_code);\n"
buf += " break;\n"
buf += " }\n\n"
buf += " return ret;\n"
buf += "}\n\n"
bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(struct se_portal_group *,\n"
bufi += " struct se_node_acl *, struct t10_pr_registration *,\n"
bufi += " int *);\n"
if re.search('parse_pr_out_transport_id\)\(', fo):
buf += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(\n"
buf += " struct se_portal_group *se_tpg,\n"
buf += " const char *buf,\n"
buf += " u32 *out_tid_len,\n"
buf += " char **port_nexus_ptr)\n"
buf += "{\n"
buf += " struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
buf += " struct " + fabric_mod_name + "_tpg, se_tpg);\n"
buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
buf += " char *tid = NULL;\n\n"
buf += " switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
if proto_ident == "FC":
buf += " case SCSI_PROTOCOL_FCP:\n"
buf += " default:\n"
buf += " tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
buf += " port_nexus_ptr);\n"
elif proto_ident == "SAS":
buf += " case SCSI_PROTOCOL_SAS:\n"
buf += " default:\n"
buf += " tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
buf += " port_nexus_ptr);\n"
elif proto_ident == "iSCSI":
buf += " case SCSI_PROTOCOL_ISCSI:\n"
buf += " default:\n"
buf += " tid = iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
buf += " port_nexus_ptr);\n"
buf += " }\n\n"
buf += " return tid;\n"
buf += "}\n\n"
bufi += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(struct se_portal_group *,\n"
bufi += " const char *, u32 *, char **);\n"
if re.search('tpg_get_inst_index\)\(', fo):
buf += "u32 " + fabric_mod_name + "_tpg_get_inst_index(struct se_portal_group *se_tpg)\n"
buf += "{\n"

39
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -3406,42 +3406,6 @@ static u16 srpt_get_tag(struct se_portal_group *tpg)
return 1;
}
static u32 srpt_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 srpt_node_acl *nacl;
struct spc_rdma_transport_id *tr_id;
nacl = container_of(se_nacl, struct srpt_node_acl, nacl);
tr_id = (void *)buf;
tr_id->protocol_identifier = SCSI_TRANSPORTID_PROTOCOLID_SRP;
memcpy(tr_id->i_port_id, nacl->i_port_id, sizeof(tr_id->i_port_id));
return sizeof(*tr_id);
}
static u32 srpt_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)
{
*format_code = 0;
return sizeof(struct spc_rdma_transport_id);
}
static char *srpt_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
const char *buf, u32 *out_tid_len,
char **port_nexus_ptr)
{
struct spc_rdma_transport_id *tr_id;
*port_nexus_ptr = NULL;
*out_tid_len = sizeof(struct spc_rdma_transport_id);
tr_id = (void *)buf;
return (char *)tr_id->i_port_id;
}
static u32 srpt_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@ -3860,9 +3824,6 @@ static const struct target_core_fabric_ops srpt_template = {
.get_fabric_name = srpt_get_fabric_name,
.tpg_get_wwn = srpt_get_fabric_wwn,
.tpg_get_tag = srpt_get_tag,
.tpg_get_pr_transport_id = srpt_get_pr_transport_id,
.tpg_get_pr_transport_id_len = srpt_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = srpt_parse_pr_out_transport_id,
.tpg_check_demo_mode = srpt_check_false,
.tpg_check_demo_mode_cache = srpt_check_true,
.tpg_check_demo_mode_write_protect = srpt_check_true,

18
drivers/infiniband/ulp/srpt/ib_srpt.h
View File

@ -422,22 +422,4 @@ struct srpt_node_acl {
struct list_head list;
};
/*
* SRP-releated SCSI persistent reservation definitions.
*
* See also SPC4r28, section 7.6.1 (Protocol specific parameters introduction).
* See also SPC4r28, section 7.6.4.5 (TransportID for initiator ports using
* SCSI over an RDMA interface).
*/
enum {
SCSI_TRANSPORTID_PROTOCOLID_SRP = 4,
};
struct spc_rdma_transport_id {
uint8_t protocol_identifier;
uint8_t reserved[7];
uint8_t i_port_id[16];
};
#endif /* IB_SRPT_H */

73
drivers/scsi/qla2xxx/tcm_qla2xxx.c
View File

@ -206,73 +206,6 @@ static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
return tpg->lport_tpgt;
}
static u32 tcm_qla2xxx_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_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
int ret = 0;
switch (lport->lport_proto_id) {
case SCSI_PROTOCOL_FCP:
default:
ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
format_code, buf);
break;
}
return ret;
}
static u32 tcm_qla2xxx_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_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
int ret = 0;
switch (lport->lport_proto_id) {
case SCSI_PROTOCOL_FCP:
default:
ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
format_code);
break;
}
return ret;
}
static char *tcm_qla2xxx_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
struct tcm_qla2xxx_tpg, se_tpg);
struct tcm_qla2xxx_lport *lport = tpg->lport;
char *tid = NULL;
switch (lport->lport_proto_id) {
case SCSI_PROTOCOL_FCP:
default:
tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
port_nexus_ptr);
break;
}
return tid;
}
static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
{
struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
@ -1913,9 +1846,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
.get_fabric_name = tcm_qla2xxx_get_fabric_name,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
.tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
.tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =
@ -1963,9 +1893,6 @@ static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
.get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
.tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
.tpg_get_tag = tcm_qla2xxx_get_tag,
.tpg_get_pr_transport_id = tcm_qla2xxx_get_pr_transport_id,
.tpg_get_pr_transport_id_len = tcm_qla2xxx_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = tcm_qla2xxx_parse_pr_out_transport_id,
.tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
.tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,

2
drivers/scsi/qla2xxx/tcm_qla2xxx.h
View File

@ -57,8 +57,6 @@ struct tcm_qla2xxx_fc_loopid {
};
struct tcm_qla2xxx_lport {
/* SCSI protocol the lport is providing */
u8 lport_proto_id;
/* Binary World Wide unique Port Name for FC Target Lport */
u64 lport_wwpn;
/* Binary World Wide unique Port Name for FC NPIV Target Lport */

3
drivers/target/iscsi/iscsi_target_configfs.c
View File

@ -1921,9 +1921,6 @@ const struct target_core_fabric_ops iscsi_ops = {
.tpg_get_wwn = lio_tpg_get_endpoint_wwn,
.tpg_get_tag = lio_tpg_get_tag,
.tpg_get_default_depth = lio_tpg_get_default_depth,
.tpg_get_pr_transport_id = iscsi_get_pr_transport_id,
.tpg_get_pr_transport_id_len = iscsi_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = iscsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = lio_tpg_check_demo_mode,
.tpg_check_demo_mode_cache = lio_tpg_check_demo_mode_cache,
.tpg_check_demo_mode_write_protect =

92
drivers/target/loopback/tcm_loop.c
View File

@ -542,95 +542,6 @@ static u16 tcm_loop_get_tag(struct se_portal_group *se_tpg)
return tl_tpg(se_tpg)->tl_tpgt;
}
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_hba *tl_hba = tl_tpg(se_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_hba *tl_hba = tl_tpg(se_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_hba *tl_hba = tl_tpg(se_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);
}
/*
* Returning (1) here allows for target_core_mod struct se_node_acl to be generated
* based upon the incoming fabric dependent SCSI Initiator Port
@ -1332,9 +1243,6 @@ static const struct target_core_fabric_ops loop_ops = {
.get_fabric_name = tcm_loop_get_fabric_name,
.tpg_get_wwn = tcm_loop_get_endpoint_wwn,
.tpg_get_tag = tcm_loop_get_tag,
.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 =

70
drivers/target/sbp/sbp_target.c
View File

@ -1832,73 +1832,6 @@ static int sbp_check_stop_free(struct se_cmd *se_cmd)
return 1;
}
static u32 sbp_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)
{
int ret;
/*
* Set PROTOCOL IDENTIFIER to 3h for SBP
*/
buf[0] = SCSI_PROTOCOL_SBP;
/*
* From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
* over IEEE 1394
*/
ret = hex2bin(&buf[8], se_nacl->initiatorname, 8);
if (ret < 0)
pr_debug("sbp transport_id: invalid hex string\n");
/*
* The IEEE 1394 Transport ID is a hardcoded 24-byte length
*/
return 24;
}
static u32 sbp_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)
{
*format_code = 0;
/*
* From spc4r17, 7.5.4.4 TransportID for initiator ports using SCSI
* over IEEE 1394
*
* The SBP Transport ID is a hardcoded 24-byte length
*/
return 24;
}
/*
* 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 *sbp_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
/*
* Assume the FORMAT CODE 00b from spc4r17, 7.5.4.4 TransportID
* for initiator ports using SCSI over SBP Serial SCSI Protocol
*
* The TransportID for a IEEE 1394 Initiator Port is of fixed size of
* 24 bytes, and IEEE 1394 does not contain a I_T nexus identifier,
* so we return the **port_nexus_ptr set to NULL.
*/
*port_nexus_ptr = NULL;
*out_tid_len = 24;
return (char *)&buf[8];
}
static int sbp_count_se_tpg_luns(struct se_portal_group *tpg)
{
int i, count = 0;
@ -2432,9 +2365,6 @@ static const struct target_core_fabric_ops sbp_ops = {
.get_fabric_name = sbp_get_fabric_name,
.tpg_get_wwn = sbp_get_fabric_wwn,
.tpg_get_tag = sbp_get_tag,
.tpg_get_pr_transport_id = sbp_get_pr_transport_id,
.tpg_get_pr_transport_id_len = sbp_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = sbp_parse_pr_out_transport_id,
.tpg_check_demo_mode = sbp_check_true,
.tpg_check_demo_mode_cache = sbp_check_true,
.tpg_check_demo_mode_write_protect = sbp_check_false,

8
drivers/target/target_core_configfs.c
View File

@ -326,14 +326,6 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo)
pr_err("Missing tfo->tpg_get_tag()\n");
return -EINVAL;
}
if (!tfo->tpg_get_pr_transport_id) {
pr_err("Missing tfo->tpg_get_pr_transport_id()\n");
return -EINVAL;
}
if (!tfo->tpg_get_pr_transport_id_len) {
pr_err("Missing tfo->tpg_get_pr_transport_id_len()\n");
return -EINVAL;
}
if (!tfo->tpg_check_demo_mode) {
pr_err("Missing tfo->tpg_check_demo_mode()\n");
return -EINVAL;

263
drivers/target/target_core_fabric_lib.c
View File

@ -24,6 +24,11 @@
*
******************************************************************************/
/*
* See SPC4, section 7.5 "Protocol specific parameters" for details
* on the formats implemented in this file.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/ctype.h>
@ -39,103 +44,26 @@
#include "target_core_internal.h"
#include "target_core_pr.h"
/*
* Handlers for Serial Attached SCSI (SAS)
*/
u32 sas_get_pr_transport_id(
struct se_portal_group *se_tpg,
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
static int sas_get_pr_transport_id(
struct se_node_acl *nacl,
int *format_code,
unsigned char *buf)
{
unsigned char *ptr;
int ret;
/*
* Set PROTOCOL IDENTIFIER to 6h for SAS
*/
buf[0] = 0x06;
/*
* From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
* over SAS Serial SCSI Protocol
*/
ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */
/* Skip over 'naa. prefix */
ret = hex2bin(&buf[4], &nacl->initiatorname[4], 8);
if (ret) {
pr_debug("%s: invalid hex string\n", __func__);
return ret;
}
ret = hex2bin(&buf[4], ptr, 8);
if (ret < 0)
pr_debug("sas transport_id: invalid hex string\n");
/*
* The SAS Transport ID is a hardcoded 24-byte length
*/
return 24;
}
EXPORT_SYMBOL(sas_get_pr_transport_id);
u32 sas_get_pr_transport_id_len(
struct se_portal_group *se_tpg,
static int fc_get_pr_transport_id(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code)
{
*format_code = 0;
/*
* From spc4r17, 7.5.4.7 TransportID for initiator ports using SCSI
* over SAS Serial SCSI Protocol
*
* The SAS Transport ID is a hardcoded 24-byte length
*/
return 24;
}
EXPORT_SYMBOL(sas_get_pr_transport_id_len);
/*
* Used for handling SCSI fabric dependent TransportIDs in SPC-3 and above
* Persistent Reservation SPEC_I_PT=1 and PROUT REGISTER_AND_MOVE operations.
*/
char *sas_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
/*
* Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
* for initiator ports using SCSI over SAS Serial SCSI Protocol
*
* The TransportID for a SAS Initiator Port is of fixed size of
* 24 bytes, and SAS does not contain a I_T nexus identifier,
* so we return the **port_nexus_ptr set to NULL.
*/
*port_nexus_ptr = NULL;
*out_tid_len = 24;
return (char *)&buf[4];
}
EXPORT_SYMBOL(sas_parse_pr_out_transport_id);
/*
* Handlers for Fibre Channel Protocol (FCP)
*/
u32 fc_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)
{
*format_code = 0;
/*
* The FC Transport ID is a hardcoded 24-byte length
*/
return 24;
}
EXPORT_SYMBOL(fc_get_pr_transport_id_len);
u32 fc_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)
{
@ -144,24 +72,20 @@ u32 fc_get_pr_transport_id(
u32 off = 8;
/*
* PROTOCOL IDENTIFIER is 0h for FCP-2
*
* From spc4r17, 7.5.4.2 TransportID for initiator ports using
* SCSI over Fibre Channel
*
* We convert the ASCII formatted N Port name into a binary
* encoded TransportID.
*/
ptr = &se_nacl->initiatorname[0];
for (i = 0; i < 24; ) {
if (!strncmp(&ptr[i], ":", 1)) {
i++;
continue;
}
ret = hex2bin(&buf[off++], &ptr[i], 1);
if (ret < 0)
pr_debug("fc transport_id: invalid hex string\n");
if (ret < 0) {
pr_debug("%s: invalid hex string\n", __func__);
return ret;
}
i += 2;
}
/*
@ -169,31 +93,52 @@ u32 fc_get_pr_transport_id(
*/
return 24;
}
EXPORT_SYMBOL(fc_get_pr_transport_id);
char *fc_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
static int sbp_get_pr_transport_id(
struct se_node_acl *nacl,
int *format_code,
unsigned char *buf)
{
/*
* The TransportID for a FC N Port is of fixed size of
* 24 bytes, and FC does not contain a I_T nexus identifier,
* so we return the **port_nexus_ptr set to NULL.
*/
*port_nexus_ptr = NULL;
*out_tid_len = 24;
int ret;
return (char *)&buf[8];
ret = hex2bin(&buf[8], nacl->initiatorname, 8);
if (ret) {
pr_debug("%s: invalid hex string\n", __func__);
return ret;
}
EXPORT_SYMBOL(fc_parse_pr_out_transport_id);
/*
* Handlers for Internet Small Computer Systems Interface (iSCSI)
*/
u32 iscsi_get_pr_transport_id(
struct se_portal_group *se_tpg,
return 24;
}
static int srp_get_pr_transport_id(
struct se_node_acl *nacl,
int *format_code,
unsigned char *buf)
{
const char *p;
unsigned len, count, leading_zero_bytes;
int rc;
p = nacl->initiatorname;
if (strncasecmp(p, "0x", 2) == 0)
p += 2;
len = strlen(p);
if (len % 2)
return -EINVAL;
count = min(len / 2, 16U);
leading_zero_bytes = 16 - count;
memset(buf + 8, 0, leading_zero_bytes);
rc = hex2bin(buf + 8 + leading_zero_bytes, p, count);
if (rc < 0) {
pr_debug("hex2bin failed for %s: %d\n", __func__, rc);
return rc;
}
return 24;
}
static int iscsi_get_pr_transport_id(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code,
@ -203,10 +148,6 @@ u32 iscsi_get_pr_transport_id(
u16 len = 0;
spin_lock_irq(&se_nacl->nacl_sess_lock);
/*
* Set PROTOCOL IDENTIFIER to 5h for iSCSI
*/
buf[0] = 0x05;
/*
* From spc4r17 Section 7.5.4.6: TransportID for initiator
* ports using SCSI over iSCSI.
@ -286,10 +227,8 @@ u32 iscsi_get_pr_transport_id(
return len;
}
EXPORT_SYMBOL(iscsi_get_pr_transport_id);
u32 iscsi_get_pr_transport_id_len(
struct se_portal_group *se_tpg,
static int iscsi_get_pr_transport_id_len(
struct se_node_acl *se_nacl,
struct t10_pr_registration *pr_reg,
int *format_code)
@ -332,9 +271,8 @@ u32 iscsi_get_pr_transport_id_len(
return len;
}
EXPORT_SYMBOL(iscsi_get_pr_transport_id_len);
char *iscsi_parse_pr_out_transport_id(
static char *iscsi_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
@ -421,4 +359,79 @@ char *iscsi_parse_pr_out_transport_id(
return (char *)&buf[4];
}
EXPORT_SYMBOL(iscsi_parse_pr_out_transport_id);
int target_get_pr_transport_id_len(struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg, int *format_code)
{
switch (nacl->se_tpg->proto_id) {
case SCSI_PROTOCOL_FCP:
case SCSI_PROTOCOL_SBP:
case SCSI_PROTOCOL_SRP:
case SCSI_PROTOCOL_SAS:
break;
case SCSI_PROTOCOL_ISCSI:
return iscsi_get_pr_transport_id_len(nacl, pr_reg, format_code);
default:
pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
return -EINVAL;
}
/*
* Most transports use a fixed length 24 byte identifier.
*/
*format_code = 0;
return 24;
}
int target_get_pr_transport_id(struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg, int *format_code,
unsigned char *buf)
{
switch (nacl->se_tpg->proto_id) {
case SCSI_PROTOCOL_SAS:
return sas_get_pr_transport_id(nacl, format_code, buf);
case SCSI_PROTOCOL_SBP:
return sbp_get_pr_transport_id(nacl, format_code, buf);
case SCSI_PROTOCOL_SRP:
return srp_get_pr_transport_id(nacl, format_code, buf);
case SCSI_PROTOCOL_FCP:
return fc_get_pr_transport_id(nacl, format_code, buf);
case SCSI_PROTOCOL_ISCSI:
return iscsi_get_pr_transport_id(nacl, pr_reg, format_code,
buf);
default:
pr_err("Unknown proto_id: 0x%02x\n", nacl->se_tpg->proto_id);
return -EINVAL;
}
}
const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
const char *buf, u32 *out_tid_len, char **port_nexus_ptr)
{
u32 offset;
switch (tpg->proto_id) {
case SCSI_PROTOCOL_SAS:
/*
* Assume the FORMAT CODE 00b from spc4r17, 7.5.4.7 TransportID
* for initiator ports using SCSI over SAS Serial SCSI Protocol.
*/
offset = 4;
break;
case SCSI_PROTOCOL_SBP:
case SCSI_PROTOCOL_SRP:
case SCSI_PROTOCOL_FCP:
offset = 8;
break;
case SCSI_PROTOCOL_ISCSI:
return iscsi_parse_pr_out_transport_id(tpg, buf, out_tid_len,
port_nexus_ptr);
default:
pr_err("Unknown proto_id: 0x%02x\n", tpg->proto_id);
return NULL;
}
*port_nexus_ptr = NULL;
*out_tid_len = 24;
return buf + offset;
}

9
drivers/target/target_core_internal.h
View File

@ -38,6 +38,15 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
int target_configure_device(struct se_device *dev);
void target_free_device(struct se_device *);
/* target_core_fabric_lib.c */
int target_get_pr_transport_id_len(struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg, int *format_code);
int target_get_pr_transport_id(struct se_node_acl *nacl,
struct t10_pr_registration *pr_reg, int *format_code,
unsigned char *buf);
const char *target_parse_pr_out_transport_id(struct se_portal_group *tpg,
const char *buf, u32 *out_tid_len, char **port_nexus_ptr);
/* target_core_hba.c */
struct se_hba *core_alloc_hba(const char *, u32, u32);
int core_delete_hba(struct se_hba *);

49
drivers/target/target_core_pr.c
View File

@ -1445,9 +1445,8 @@ core_scsi3_decode_spec_i_port(
struct t10_pr_registration *pr_reg_tmp, *pr_reg_tmp_safe;
LIST_HEAD(tid_dest_list);
struct pr_transport_id_holder *tidh_new, *tidh, *tidh_tmp;
const struct target_core_fabric_ops *tmp_tf_ops;
unsigned char *buf;
unsigned char *ptr, *i_str = NULL, proto_ident;
unsigned char *buf, *ptr, proto_ident;
const unsigned char *i_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
sense_reason_t ret;
u32 tpdl, tid_len = 0;
@ -1533,11 +1532,7 @@ core_scsi3_decode_spec_i_port(
tmp_tpg = tmp_port->sep_tpg;
if (!tmp_tpg)
continue;
tmp_tf_ops = tmp_tpg->se_tpg_tfo;
if (!tmp_tf_ops)
continue;
if (!tmp_tf_ops->tpg_parse_pr_out_transport_id)
continue;
/*
* Look for the matching proto_ident provided by
* the received TransportID
@ -1546,9 +1541,8 @@ core_scsi3_decode_spec_i_port(
continue;
dest_rtpi = tmp_port->sep_rtpi;
i_str = tmp_tf_ops->tpg_parse_pr_out_transport_id(
tmp_tpg, (const char *)ptr, &tid_len,
&iport_ptr);
i_str = target_parse_pr_out_transport_id(tmp_tpg,
(const char *)ptr, &tid_len, &iport_ptr);
if (!i_str)
continue;
@ -3105,7 +3099,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key,
struct t10_pr_registration *pr_reg, *pr_res_holder, *dest_pr_reg;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
unsigned char *initiator_str;
const unsigned char *initiator_str;
char *iport_ptr = NULL, i_buf[PR_REG_ISID_ID_LEN];
u32 tid_len, tmp_tid_len;
int new_reg = 0, type, scope, matching_iname;
@ -3237,14 +3231,7 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key,
ret = TCM_INVALID_PARAMETER_LIST;
goto out;
}
if (dest_tf_ops->tpg_parse_pr_out_transport_id == NULL) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Fabric does not"
" containg a valid tpg_parse_pr_out_transport_id"
" function pointer\n");
ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
goto out;
}
initiator_str = dest_tf_ops->tpg_parse_pr_out_transport_id(dest_se_tpg,
initiator_str = target_parse_pr_out_transport_id(dest_se_tpg,
(const char *)&buf[24], &tmp_tid_len, &iport_ptr);
if (!initiator_str) {
pr_err("SPC-3 PR REGISTER_AND_MOVE: Unable to locate"
@ -3881,9 +3868,10 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
struct t10_pr_registration *pr_reg, *pr_reg_tmp;
struct t10_reservation *pr_tmpl = &dev->t10_pr;
unsigned char *buf;
u32 add_desc_len = 0, add_len = 0, desc_len, exp_desc_len;
u32 add_desc_len = 0, add_len = 0;
u32 off = 8; /* off into first Full Status descriptor */
int format_code = 0, pr_res_type = 0, pr_res_scope = 0;
int exp_desc_len, desc_len;
bool all_reg = false;
if (cmd->data_length < 8) {
@ -3928,10 +3916,10 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
* Determine expected length of $FABRIC_MOD specific
* TransportID full status descriptor..
*/
exp_desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id_len(
se_tpg, se_nacl, pr_reg, &format_code);
if ((exp_desc_len + add_len) > cmd->data_length) {
exp_desc_len = target_get_pr_transport_id_len(se_nacl, pr_reg,
&format_code);
if (exp_desc_len < 0 ||
exp_desc_len + add_len > cmd->data_length) {
pr_warn("SPC-3 PRIN READ_FULL_STATUS ran"
" out of buffer: %d\n", cmd->data_length);
spin_lock(&pr_tmpl->registration_lock);
@ -3995,14 +3983,19 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
} else
off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
buf[off+4] = se_tpg->proto_id;
/*
* Now, have the $FABRIC_MOD fill in the protocol identifier
* Now, have the $FABRIC_MOD fill in the transport ID.
*/
desc_len = se_tpg->se_tpg_tfo->tpg_get_pr_transport_id(se_tpg,
se_nacl, pr_reg, &format_code, &buf[off+4]);
desc_len = target_get_pr_transport_id(se_nacl, pr_reg,
&format_code, &buf[off+4]);
spin_lock(&pr_tmpl->registration_lock);
atomic_dec_mb(&pr_reg->pr_res_holders);
if (desc_len < 0)
break;
/*
* Set the ADDITIONAL DESCRIPTOR LENGTH
*/

3
drivers/target/tcm_fc/tfc_conf.c
View File

@ -454,9 +454,6 @@ static const struct target_core_fabric_ops ft_fabric_ops = {
.get_fabric_name = ft_get_fabric_name,
.tpg_get_wwn = ft_get_fabric_wwn,
.tpg_get_tag = ft_get_tag,
.tpg_get_pr_transport_id = fc_get_pr_transport_id,
.tpg_get_pr_transport_id_len = fc_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = fc_parse_pr_out_transport_id,
.tpg_check_demo_mode = ft_check_false,
.tpg_check_demo_mode_cache = ft_check_false,
.tpg_check_demo_mode_write_protect = ft_check_false,

75
drivers/usb/gadget/legacy/tcm_usb_gadget.c
View File

@ -1290,72 +1290,6 @@ static u16 usbg_get_tag(struct se_portal_group *se_tpg)
return tpg->tport_tpgt;
}
static u32 usbg_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 usbg_tpg *tpg = container_of(se_tpg,
struct usbg_tpg, se_tpg);
struct usbg_tport *tport = tpg->tport;
int ret = 0;
switch (tport->tport_proto_id) {
case SCSI_PROTOCOL_SAS:
default:
ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
format_code, buf);
break;
}
return ret;
}
static u32 usbg_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 usbg_tpg *tpg = container_of(se_tpg,
struct usbg_tpg, se_tpg);
struct usbg_tport *tport = tpg->tport;
int ret = 0;
switch (tport->tport_proto_id) {
case SCSI_PROTOCOL_SAS:
default:
ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
format_code);
break;
}
return ret;
}
static char *usbg_parse_pr_out_transport_id(
struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
struct usbg_tpg *tpg = container_of(se_tpg,
struct usbg_tpg, se_tpg);
struct usbg_tport *tport = tpg->tport;
char *tid = NULL;
switch (tport->tport_proto_id) {
case SCSI_PROTOCOL_SAS:
default:
tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
port_nexus_ptr);
}
return tid;
}
static u32 usbg_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@ -1491,8 +1425,12 @@ static struct se_portal_group *usbg_make_tpg(
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
/*
* SPC doesn't assign a protocol identifier for USB-SCSI, so we
* pretend to be SAS..
*/
ret = core_tpg_register(&usbg_ops, wwn, &tpg->se_tpg,
tport->tport_proto_id);
SCSI_PROTOCOL_SAS);
if (ret < 0) {
destroy_workqueue(tpg->workqueue);
kfree(tpg);
@ -1788,9 +1726,6 @@ static const struct target_core_fabric_ops usbg_ops = {
.get_fabric_name = usbg_get_fabric_name,
.tpg_get_wwn = usbg_get_fabric_wwn,
.tpg_get_tag = usbg_get_tag,
.tpg_get_pr_transport_id = usbg_get_pr_transport_id,
.tpg_get_pr_transport_id_len = usbg_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = usbg_parse_pr_out_transport_id,
.tpg_check_demo_mode = usbg_check_true,
.tpg_check_demo_mode_cache = usbg_check_false,
.tpg_check_demo_mode_write_protect = usbg_check_false,

2
drivers/usb/gadget/legacy/tcm_usb_gadget.h
View File

@ -44,8 +44,6 @@ struct usbg_tpg {
};
struct usbg_tport {
/* SCSI protocol the tport is providing */
u8 tport_proto_id;
/* Binary World Wide unique Port Name for SAS Target port */
u64 tport_wwpn;
/* ASCII formatted WWPN for SAS Target port */

94
drivers/vhost/scsi.c
View File

@ -304,97 +304,6 @@ static u16 vhost_scsi_get_tpgt(struct se_portal_group *se_tpg)
return tpg->tport_tpgt;
}
static u32
vhost_scsi_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 vhost_scsi_tpg *tpg = container_of(se_tpg,
struct vhost_scsi_tpg, se_tpg);
struct vhost_scsi_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using"
" SAS emulation\n", tport->tport_proto_id);
break;
}
return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
format_code, buf);
}
static u32
vhost_scsi_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 vhost_scsi_tpg *tpg = container_of(se_tpg,
struct vhost_scsi_tpg, se_tpg);
struct vhost_scsi_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using"
" SAS emulation\n", tport->tport_proto_id);
break;
}
return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
format_code);
}
static char *
vhost_scsi_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
struct vhost_scsi_tpg, se_tpg);
struct vhost_scsi_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using"
" SAS emulation\n", tport->tport_proto_id);
break;
}
return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
port_nexus_ptr);
}
static int vhost_scsi_check_prot_fabric_only(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@ -2224,9 +2133,6 @@ static struct target_core_fabric_ops vhost_scsi_ops = {
.get_fabric_name = vhost_scsi_get_fabric_name,
.tpg_get_wwn = vhost_scsi_get_fabric_wwn,
.tpg_get_tag = vhost_scsi_get_tpgt,
.tpg_get_pr_transport_id = vhost_scsi_get_pr_transport_id,
.tpg_get_pr_transport_id_len = vhost_scsi_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = vhost_scsi_parse_pr_out_transport_id,
.tpg_check_demo_mode = vhost_scsi_check_true,
.tpg_check_demo_mode_cache = vhost_scsi_check_true,
.tpg_check_demo_mode_write_protect = vhost_scsi_check_false,

94
drivers/xen/xen-scsiback.c
View File

@ -1270,97 +1270,6 @@ static u16 scsiback_get_tag(struct se_portal_group *se_tpg)
return tpg->tport_tpgt;
}
static u32
scsiback_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 scsiback_tpg *tpg = container_of(se_tpg,
struct scsiback_tpg, se_tpg);
struct scsiback_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using SAS emulation\n",
tport->tport_proto_id);
break;
}
return sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
format_code, buf);
}
static u32
scsiback_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 scsiback_tpg *tpg = container_of(se_tpg,
struct scsiback_tpg, se_tpg);
struct scsiback_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using SAS emulation\n",
tport->tport_proto_id);
break;
}
return sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
format_code);
}
static char *
scsiback_parse_pr_out_transport_id(struct se_portal_group *se_tpg,
const char *buf,
u32 *out_tid_len,
char **port_nexus_ptr)
{
struct scsiback_tpg *tpg = container_of(se_tpg,
struct scsiback_tpg, se_tpg);
struct scsiback_tport *tport = tpg->tport;
switch (tport->tport_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 tport_proto_id: 0x%02x, using SAS emulation\n",
tport->tport_proto_id);
break;
}
return sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
port_nexus_ptr);
}
static struct se_wwn *
scsiback_make_tport(struct target_fabric_configfs *tf,
struct config_group *group,
@ -1909,9 +1818,6 @@ static const struct target_core_fabric_ops scsiback_ops = {
.get_fabric_name = scsiback_get_fabric_name,
.tpg_get_wwn = scsiback_get_fabric_wwn,
.tpg_get_tag = scsiback_get_tag,
.tpg_get_pr_transport_id = scsiback_get_pr_transport_id,
.tpg_get_pr_transport_id_len = scsiback_get_pr_transport_id_len,
.tpg_parse_pr_out_transport_id = scsiback_parse_pr_out_transport_id,
.tpg_check_demo_mode = scsiback_check_true,
.tpg_check_demo_mode_cache = scsiback_check_true,
.tpg_check_demo_mode_write_protect = scsiback_check_false,

33
include/target/target_core_fabric.h
View File

@ -9,15 +9,6 @@ struct target_core_fabric_ops {
char *(*tpg_get_wwn)(struct se_portal_group *);
u16 (*tpg_get_tag)(struct se_portal_group *);
u32 (*tpg_get_default_depth)(struct se_portal_group *);
u32 (*tpg_get_pr_transport_id)(struct se_portal_group *,
struct se_node_acl *,
struct t10_pr_registration *, int *,
unsigned char *);
u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *,
struct se_node_acl *,
struct t10_pr_registration *, int *);
char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *,
const char *, u32 *, char **);
int (*tpg_check_demo_mode)(struct se_portal_group *);
int (*tpg_check_demo_mode_cache)(struct se_portal_group *);
int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *);
@ -177,30 +168,6 @@ int core_tpg_register(const struct target_core_fabric_ops *,
struct se_wwn *, struct se_portal_group *, int);
int core_tpg_deregister(struct se_portal_group *);
/* SAS helpers */
u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *, unsigned char *);
u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *);
char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *,
u32 *, char **);
/* FC helpers */
u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *, unsigned char *);
u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *);
char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *,
u32 *, char **);
/* iSCSI helpers */
u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *, unsigned char *);
u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
struct t10_pr_registration *, int *);
char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *,
u32 *, char **);
/*
* The LIO target core uses DMA_TO_DEVICE to mean that data is going
* to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean