Greetings all, This series of patches adds SCSI reservation infrastructure to Target_Core_Mod/ConfigFS for current legacy SPC-2 reservations, as well as WIP code for adding SPC-3 compliant persistent reservations to Target_Core_Mod. This patch is made against lio-core-2.6.git/master and tested on v2.6.28. The lio-core-2.6.git tree can be found at: http://git.kernel.org/?p=linux/kernel/git/nab/lio-core-2.6.git;a=summary Comments apperciated. --nab Subject: [PATCH 1/4] [Linux/SCSI] Add support for SPC-4 CDBs referenced in Persisent Reservations Allowed/Confict Table Subject: [PATCH 2/4] [Target_Core_Mod]: Update core code for new reservations infrastructure Subject: [PATCH 3/4] [Target_Core_Mod] Add generic >= SPC-3 and legacy SPC-2 infrastructure Subject: [PATCH 4/4] [Target_Core_Mod/ConfigFS] Add target/core/$HBA/$STORAGE_OBJECT/pr for T10 reservations drivers/lio-core/Makefile | 1 - drivers/lio-core/target_core_base.h | 36 +-- drivers/lio-core/target_core_configfs.c | 137 +--------- drivers/lio-core/target_core_device.c | 1 - drivers/lio-core/target_core_pr.c | 427 ------------------------------ drivers/lio-core/target_core_pr.h | 25 -- drivers/lio-core/target_core_tpg.c | 4 + drivers/lio-core/target_core_transport.c | 315 ++++++++++++---------- drivers/lio-core/target_core_transport.h | 4 +- include/scsi/scsi.h | 22 -- 10 files changed, 186 insertions(+), 786 deletions(-) On target_core_mod module load and /sys/kernel/config/target/core configuration with Target_Core_Mod/IBLOCK, Target_Core_Mod/pSCSI, and Target_Core_Mod/RAMDISK_MCP $STORAGE_OBJECTS: TARGET_CORE[0]: Loading Generic Kernel Storage Engine: v3.0.0 on Linux/i686 on 2.6.28 TARGET_CORE[0]: Initialized ConfigFS Fabric Infrastructure: v1.0.0 on Linux/i686 on 2.6.28 SE_PC[1] - Registered Plugin Class: TRANSPORT PLUGIN_TRANSPORT[1] - pscsi registered PLUGIN_TRANSPORT[4] - iblock registered PLUGIN_TRANSPORT[5] - rd_dr registered PLUGIN_TRANSPORT[6] - rd_mcp registered PLUGIN_TRANSPORT[7] - fileio registered SE_PC[2] - Registered Plugin Class: OBJ PLUGIN_OBJ[1] - dev registered Target_Core_ConfigFS: Located se_plugin: cfa41090 plugin_name: iblock hba_type: 4 plugin_dep_id: 0 CORE_HBA[0] - Linux-iSCSI.org iBlock HBA Driver v3.0 on Generic Target Core Stack v3.0.0 CORE_HBA[0] - Attached iBlock HBA: 0 to Generic Target Core TCQ Depth: 512 CORE_HBA[0] - Attached HBA to Generic Target Core IBLOCK: Allocated ib_dev for lvm_test0 Target_Core_ConfigFS: Allocated se_subsystem_dev_t: cfa40000 se_dev_su_ptr: c8c74400 IBLOCK: Claiming struct block_device: cf63cf00 IBLOCK: Created bio_set() for major/minor: 254:2 iblock: Using SPC2_RESERVATIONS emulation CORE_iBLOCK[0] - Activating Device with TCQ: 0 at Major: 254 Minor 2 Vendor: LIO-ORG Model: IBLOCK Revision: v3.0 Type: Direct-Access ANSI SCSI revision: 02 T10 EVPD Unit Serial Number: 1234567890:0_254_2 T10 EVPD Page Length: 37 T10 EVPD Identifer Length: 33 T10 EVPD Identifier Association: addressed logical unit T10 EVPD Identifier Type: T10 Vendor ID based T10 EVPD ASCII Device Identifier: LIO-ORG IBLOCK:1234567890:0_254_2 Target_Core_ConfigFS: Registered iblock se_dev->se_dev_ptr: c7f95800 from fd Target_Core_ConfigFS: Located se_plugin: cfa41024 plugin_name: pscsi hba_type: 1 plugin_dep_id: 0 CORE_HBA[1] - Linux-iSCSI.org Parallel SCSI HBA Driver v3.0 on Generic Target Core Stack v3.0.0 CORE_HBA[1] - MPT SPI Host CORE_HBA[1] - Attached Parallel SCSI HBA to Generic Target Core with TCQ Depth: 127 MaxSectors: 8192 CORE_HBA[1] - Attached HBA to Generic Target Core PSCSI: Allocated pdv: cd047160 for sdd Target_Core_ConfigFS: Allocated se_subsystem_dev_t: cfa43800 se_dev_su_ptr: cd047160 PSCSI: Claiming cf2d8000 Major:Minor - 8:48 pscsi: Using SPC_PASSTHROUGH, no reservation emulation CORE_PSCSI[0] - Activating Device with TCQ: 32 at Parallel SCSI Location (Channel/Target/LUN) 0/3/0 Vendor: VMware, Model: VMware Virtual S Revision: 1.0 Type: Direct-Access ANSI SCSI revision: 02 PSCSI Status Byte exception at task: ca63d000 CDB: 0x12 Result: 0x08000002 CORE_PSCSI[0] - Added TYPE_DISK for 0:3:0 Target_Core_ConfigFS: Registered pscsi se_dev->se_dev_ptr: c8f92000 from fd Target_Core_ConfigFS: Located se_plugin: cfa410d8 plugin_name: rd_mcp hba_type: 6 plugin_dep_id: 0 CORE_HBA[2] - Linux-iSCSI.org Ramdisk HBA Driver v3.0 on Generic Target Core Stack v3.0.0 CORE_HBA[2] - Attached Ramdisk HBA: 0 to Generic Target Core TCQ Depth: 256 MaxSectors: 1024 CORE_HBA[2] - Attached HBA to Generic Target Core Target_Core_ConfigFS: Allocated se_subsystem_dev_t: c85bf800 se_dev_su_ptr: c8fe5880 RAMDISK: Referencing Page Count: 16384 CORE_RD[0] - Built Ramdisk Device ID: 0 space of 16384 pages in 6 tables rd_mcp: Using SPC2_RESERVATIONS emulation CORE_RD[0] - Activating Device with TCQ: 0 at Ramdisk Device ID: 0 Vendor: LIO-ORG Model: RAMDISK-MCP Revision: v3.0 Type: Direct-Access ANSI SCSI revision: 02 T10 EVPD Unit Serial Number: 1234567890:2_0 T10 EVPD Page Length: 38 T10 EVPD Identifer Length: 34 T10 EVPD Identifier Association: addressed logical unit T10 EVPD Identifier Type: T10 Vendor ID based T10 EVPD ASCII Device Identifier: LIO-ORG RAMDISK-MCP:1234567890:2_0 CORE_RD[0] - Added LIO MEMCPY Ramdisk Device ID: 0 of 16384 pages in 6 tables, 67108864 total bytes Target_Core_ConfigFS: Registered se_dev->se_dev_ptr: c8f93400 <SNIP> -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
