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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
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121
Documentation/target/tcm_mod_builder.py
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@ -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"