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linux/drivers/target/iscsi/iscsi_target_tpg.h

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iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 06:43:04 +00:00
#ifndef ISCSI_TARGET_TPG_H
#define ISCSI_TARGET_TPG_H
target: Minimize #include directives Remove superfluous #include directives from the include/target/*.h files. Add missing #include directives to other *.h and *.c files. Use forward declarations for structures where possible. This change reduces the build time for make M=drivers/target on my laptop from 27.1s to 18.7s or by about 30%. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
2016-11-14 15:47:14 -08:00
#include <linux/types.h>
struct iscsi_np;
struct iscsi_session;
struct iscsi_tiqn;
struct iscsi_tpg_np;
struct se_node_acl;
struct sockaddr_storage;
iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 06:43:04 +00:00
extern struct iscsi_portal_group *iscsit_alloc_portal_group(struct iscsi_tiqn *, u16);
extern int iscsit_load_discovery_tpg(void);
extern void iscsit_release_discovery_tpg(void);
extern struct iscsi_portal_group *iscsit_get_tpg_from_np(struct iscsi_tiqn *,
iscsi-target: Add login negotiation multi-plexing support This patch adds support for login negotiation multi-plexing in iscsi-target code. This involves handling the first login request PDU + payload and login response PDU + payload within __iscsi_target_login_thread() process context, and then changing struct sock->sk_data_ready() so that all subsequent exchanges are handled by workqueue process context, to allow other incoming login requests to be received in parallel by __iscsi_target_login_thread(). Upon login negotiation completion (or failure), ->sk_data_ready() is replaced with the original kernel sockets handler saved in iscsi_conn->orig_data_ready. v3 changes: - Convert iscsi_target_sk_data_ready() lock access to write[lock,unlock]_bh() - Only clear LOGIN_FLAGS_READ_ACTIVE when iscsi_target_do_login() returns zero - Add LOGIN_FLAGS_READY + LOGIN_FLAGS_CLOSED bit checks to iscsi_target_sk_data_ready() - Make INIT_DELAYED_WORK() + iscsi_target_set_sock_callbacks() setup happen earlier by moving from iscsi_target_start_negotiation() into iscsi_target_locate_portal() - Set LOGIN_FLAGS_READY bit in iscsi_target_start_negotiation() after iscsi_target_do_login() returns zero. v2 changes: - Add login_timer in iscsi_target_do_login_rx() to avoid possible endless sleep with MSG_WAITALL for traditional iscsi-target in certain network configurations. - Convert lprintk() -> pr_debug() - Remove forward declarations of iscsi_target_set_sock_callbacks(), iscsi_target_restore_sock_callbacks() and iscsi_target_sk_data_ready() - Make iscsi_target_set_sock_callbacks + iscsi_target_restore_sock_callbacks() static (Fengguang) - Make iscsi_target_do_login_rx() safe for iser-target w/o conn->sock Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-08-15 13:40:17 -07:00
struct iscsi_np *, struct iscsi_tpg_np **);
iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 06:43:04 +00:00
extern int iscsit_get_tpg(struct iscsi_portal_group *);
extern void iscsit_put_tpg(struct iscsi_portal_group *);
extern void iscsit_tpg_dump_params(struct iscsi_portal_group *);
extern int iscsit_tpg_add_portal_group(struct iscsi_tiqn *, struct iscsi_portal_group *);
extern int iscsit_tpg_del_portal_group(struct iscsi_tiqn *, struct iscsi_portal_group *,
int);
extern int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *);
extern int iscsit_tpg_disable_portal_group(struct iscsi_portal_group *, int);
extern struct iscsi_node_acl *iscsit_tpg_add_initiator_node_acl(
struct iscsi_portal_group *, const char *, u32);
extern void iscsit_tpg_del_initiator_node_acl(struct iscsi_portal_group *,
struct se_node_acl *);
extern struct iscsi_node_attrib *iscsit_tpg_get_node_attrib(struct iscsi_session *);
extern void iscsit_tpg_del_external_nps(struct iscsi_tpg_np *);
extern struct iscsi_tpg_np *iscsit_tpg_locate_child_np(struct iscsi_tpg_np *, int);
extern struct iscsi_tpg_np *iscsit_tpg_add_network_portal(struct iscsi_portal_group *,
target/iscsi: Replace __kernel_sockaddr_storage with sockaddr_storage It appears to be what the rest of the kernel does, so let's do it too. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-24 10:26:06 -07:00
struct sockaddr_storage *, struct iscsi_tpg_np *,
iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 06:43:04 +00:00
int);
extern int iscsit_tpg_del_network_portal(struct iscsi_portal_group *,
struct iscsi_tpg_np *);
extern int iscsit_ta_authentication(struct iscsi_portal_group *, u32);
extern int iscsit_ta_login_timeout(struct iscsi_portal_group *, u32);
extern int iscsit_ta_netif_timeout(struct iscsi_portal_group *, u32);
extern int iscsit_ta_generate_node_acls(struct iscsi_portal_group *, u32);
extern int iscsit_ta_default_cmdsn_depth(struct iscsi_portal_group *, u32);
extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
iscsi-target: Add new TPG attribute Add a new TPG attribute demo_mode_discovery which is enabled by default. Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-10-07 23:12:11 +02:00
extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
iscsi-target: Expose default_erl as TPG attribute This patch exposes default_erl as a TPG attribute so that it may be set TPG wide in demo-mode, but still allow the existing NodeACL attribute to be overridden on a per initiator basis. Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-11-20 11:57:18 -08:00
extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
Target/configfs: Expose iSCSI network portal group T10-PI support User may enable T10-PI support per network portal group. any connection established on top of it, will be required to serve protected transactions. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-19 17:50:20 +02:00
extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
iscsi/iser-target: Add fabric_prot_type attribute support This patch updates iscsi/iser-target to add a new fabric_prot_type TPG attribute for iser-target, used for controlling LLD level protection into LIO when the backend device does not support T10-PI. This is required for ib_isert to enable WRITE_STRIP + READ_INSERT hardware offloads. It's disabled by default and controls which se_sesion->sess_prot_type are set at iscsi_target_locate_portal() session registration time. Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Martin Petersen <martin.petersen@oracle.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-03-29 19:36:16 -07:00
extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32);
iscsi-target: Add tpg_enabled_sendtargets for disabled discovery This patch adds a new tpg_enabled_sendtargets configfs attribute to allow in-band sendtargets discovery information to include target-portal-groups (TPGs) in !TPG_STATE_ACTIVE state. This functionality is useful for clustered iSCSI targets, where TPGTs handled on remote cluster nodes should be advertised in the SendTargets response. By default, this new attribute retains the default behaviour of existing code which to ignore portal-groups in !TPG_STATE_ACTIVE state. Signed-off-by: David Disseldorp <ddiss@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-08-01 00:10:12 -07:00
extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32);
iscsi-target: Add login_keys_workaround attribute for non RFC initiators This patch re-introduces part of a long standing login workaround that was recently dropped by: commit 1c99de981f30b3e7868b8d20ce5479fa1c0fea46 Author: Nicholas Bellinger <nab@linux-iscsi.org> Date: Sun Apr 2 13:36:44 2017 -0700 iscsi-target: Drop work-around for legacy GlobalSAN initiator Namely, the workaround for FirstBurstLength ended up being required by Mellanox Flexboot PXE boot ROMs as reported by Robert. So this patch re-adds the work-around for FirstBurstLength within iscsi_check_proposer_for_optional_reply(), and makes the key optional to respond when the initiator does not propose, nor respond to it. Also as requested by Arun, this patch introduces a new TPG attribute named 'login_keys_workaround' that controls the use of both the FirstBurstLength workaround, as well as the two other existing workarounds for gPXE iSCSI boot client. By default, the workaround is enabled with login_keys_workaround=1, since Mellanox FlexBoot requires it, and Arun has verified the Qlogic MSFT initiator already proposes FirstBurstLength, so it's uneffected by this re-adding this part of the original work-around. Reported-by: Robert LeBlanc <robert@leblancnet.us> Cc: Robert LeBlanc <robert@leblancnet.us> Reviewed-by: Arun Easi <arun.easi@cavium.com> Cc: <stable@vger.kernel.org> # 3.1+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2017-07-07 14:45:49 -07:00
extern int iscsit_ta_login_keys_workaround(struct iscsi_portal_group *, u32);
iscsi-target: Add iSCSI fabric support for target v4.1 The Linux-iSCSI.org target module is a full featured in-kernel software implementation of iSCSI target mode (RFC-3720) for the current WIP mainline target v4.1 infrastructure code for the v3.1 kernel. More information can be found here: http://linux-iscsi.org/wiki/ISCSI This includes support for: * RFC-3720 defined request / response state machines and support for all defined iSCSI operation codes from Section 10.2.1.2 using libiscsi include/scsi/iscsi_proto.h PDU definitions * Target v4.1 compatible control plane using the generic layout in target_core_fabric_configfs.c and fabric dependent attributes within /sys/kernel/config/target/iscsi/ subdirectories. * Target v4.1 compatible iSCSI statistics based on RFC-4544 (iSCSI MIBS) * Support for IPv6 and IPv4 network portals in M:N mapping to TPGs * iSCSI Error Recovery Hierarchy support * Per iSCSI connection RX/TX thread pair scheduling affinity * crc32c + crc32c_intel SSEv4 instruction offload support using libcrypto * CHAP Authentication support using libcrypto * Conversion to use internal SGl allocation with iscsit_alloc_buffs() -> transport_generic_map_mem_to_cmd() (nab: Fix iscsi_proto.h struct scsi_lun usage from linux-next in commit: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]) (nab: Fix 32-bit compile warnings) Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andy Grover <agrover@redhat.com> Acked-by: Roland Dreier <roland@kernel.org> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
2011-07-23 06:43:04 +00:00
#endif /* ISCSI_TARGET_TPG_H */
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