Eric Lee / smarc-fsl-linux-kernel

11 Oct, 2011

1 commit

23 Aug, 2011

1 commit

  • e1750ba20   target: Use ERR_CAST inlined function ... Browse Code »

    Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

    The semantic patch that makes this output is available
    in scripts/coccinelle/api/err_cast.cocci.

    More information about semantic patching is available at
    http://coccinelle.lip6.fr/

    Signed-off-by: Thomas Meyer
    Signed-off-by: Nicholas Bellinger

    Thomas Meyer
     

22 Jul, 2011

2 commits

  • 6708bb27b   target: Follow up core updates from AGrover and HCH (round 4) ... Browse Code »

    This patch contains the squashed version of forth round series cleanups
    from Andy and Christoph following the post heavy lifting in the preceeding:
    'Eliminate usage of struct se_mem' and 'Make all control CDBs scatter-gather'
    changes. This also includes a conversion of target core and the v3.0
    mainline fabric modules (loopback and tcm_fc) to use pr_debug and the
    CONFIG_DYNAMIC_DEBUG infrastructure!

    These have been squashed into this third and final round for v3.1.

    target: Remove ifdeffed code in t_g_process_write
    target: Remove direct ramdisk code
    target: Rename task_sg_num to task_sg_nents
    target: Remove custom debug macros for pr_debug. Use pr_err().
    target: Remove custom debug macros in mainline fabrics
    target: Set WSNZ=1 in block limits VPD. Abort if WRITE_SAME sectors = 0
    target: Remove transport do_se_mem_map callback
    target: Further simplify transport_free_pages
    target: Redo task allocation return value handling
    target: Remove extra parentheses
    target: change alloc_task call to take *cdb, not *cmd

    (nab: Fix bogus struct file assignments in fd_do_readv and fd_do_writev)

    Signed-off-by: Andy Grover
    Reviewed-by: Christoph Hellwig
    Signed-off-by: Nicholas Bellinger

    Andy Grover
     
  • e3d6f909e   target: Core cleanups from AGrover (round 1) ... Browse Code »

    This patch contains the squashed version of a number of cleanups and
    minor fixes from Andy's initial series (round 1) for target core this
    past spring. The condensed log looks like:

    target: use errno values instead of returning -1 for everything
    target: Rename transport_calc_sg_num to transport_init_task_sg
    target: Fix leak in error path in transport_init_task_sg
    target/pscsi: Remove pscsi_get_sh() usage
    target: Make two runtime checks into WARN_ONs
    target: Remove hba queue depth and convert to spin_lock_irq usage
    target: dev->dev_status_queue_obj is unused
    target: Make struct se_queue_req.cmd type struct se_cmd *
    target: Remove __transport_get_qr_from_queue()
    target: Rename se_dev->g_se_dev_list to se_dev_node
    target: Remove struct se_global
    target: Simplify scsi mib index table code
    target: Make dev_queue_obj a member of se_device instead of a pointer
    target: remove extraneous returns at end of void functions
    target: Ensure transport_dump_vpd_ident_type returns null-terminated str
    target: Function pointers don't need to use '&' to be assigned
    target: Fix comment in __transport_execute_tasks()
    target: Misc style cleanups
    target: rename struct pr_reservation_template to pr_reservation
    target: Remove #defines that just perform indirection
    target: Inline transport_get_task_from_execute_queue()
    target: Minor header comment fixes

    Signed-off-by: Andy Grover
    Signed-off-by: Nicholas Bellinger

    Andy Grover
     

24 Mar, 2011

1 commit

  • 12d233842   [SCSI] target: add initial statistics ... Browse Code »

    This patch adds a target_core_mib.c statistics conversion for
    backend context struct se_subsystem_dev + struct se_device config_group
    based statistics in target_core_device.c using CONFIGFS_EATTR()
    based struct config_item_types from target_core_stat.c code.

    The conversion from backend /proc/scsi_target/mib/ context output to configfs
    default groups+attributes include scsi_dev, scsi_lu, and scsi_tgt_dev output
    from within individual:

    /sys/kernel/config/target/core/$HBA/DEV/

    The legacy procfs output now appear as individual configfs attributes under:

    *) $HBA/$DEV/statistics/scsi_dev:

    |-- indx
    |-- inst
    |-- ports
    `-- role

    *) $HBA/$DEV/statistics/scsi_lu:

    |-- creation_time
    |-- dev
    |-- dev_type
    |-- full_stat
    |-- hs_num_cmds
    |-- indx
    |-- inst
    |-- lu_name
    |-- lun
    |-- num_cmds
    |-- prod
    |-- read_mbytes
    |-- resets
    |-- rev
    |-- state_bit
    |-- status
    |-- vend
    `-- write_mbytes

    *) $HBA/$DEV/statistics/scsi_tgt_dev:

    |-- indx
    |-- inst
    |-- non_access_lus
    |-- num_lus
    |-- resets
    `-- status

    The conversion from backend /proc/scsi_target/mib/ context output to configfs
    default groups+attributes include scsi_port, scsi_tgt_port and scsi_transport
    output from within individual:

    /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/

    The legacy procfs output now appear as individual configfs attributes under:

    *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_port

    |-- busy_count
    |-- dev
    |-- indx
    |-- inst
    `-- role

    *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_tgt_port

    |-- dev
    |-- hs_in_cmds
    |-- in_cmds
    |-- indx
    |-- inst
    |-- name
    |-- port_index
    |-- read_mbytes
    `-- write_mbytes

    *) fabric/$WWN/tpgt_$TPGT/lun/lun_$LUN_ID/statistics/scsi_transport

    |-- dev_name
    |-- device
    |-- indx
    `-- inst

    The conversion from backend /proc/scsi_target/mib/ context output to configfs
    default groups+attributes include scsi_att_intr_port and scsi_auth_intr output
    from within individual:

    /sys/kernel/config/target/fabric/$WWN/tpgt_$TPGT/acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/

    The legacy procfs output now appear as individual configfs attributes under:

    *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_att_intr_port

    |-- dev
    |-- indx
    |-- inst
    |-- port
    |-- port_auth_indx
    `-- port_ident

    *) acls/$INITIATOR_WWN/lun_$LUN_ID/statistics/scsi_auth_intr

    |-- att_count
    |-- creation_time
    |-- dev
    |-- dev_or_port
    |-- hs_num_cmds
    |-- indx
    |-- inst
    |-- intr_name
    |-- map_indx
    |-- num_cmds
    |-- port
    |-- read_mbytes
    |-- row_status
    `-- write_mbytes

    Also, this includes adding struct target_fabric_configfs_template->
    tfc_wwn_fabric_stats_cit and ->tfc_tpg_nacl_stat_cit respectively for
    use during target_core_fabric_configfs.c:target_fabric_setup_cits()

    Signed-off-by: Nicholas A. Bellinger
    Signed-off-by: James Bottomley

    Nicholas Bellinger
     

13 Feb, 2011

1 commit

15 Jan, 2011

1 commit

  • c66ac9db8   [SCSI] target: Add LIO target core v4.0.0-rc6 ... Browse Code »

    LIO target is a full featured in-kernel target framework with the
    following feature set:

    High-performance, non-blocking, multithreaded architecture with SIMD
    support.

    Advanced SCSI feature set:

    * Persistent Reservations (PRs)
    * Asymmetric Logical Unit Assignment (ALUA)
    * Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
    * Full Error Recovery (ERL=0,1,2)
    * Active/active task migration and session continuation (ERL=2)
    * Thin LUN provisioning (UNMAP and WRITE_SAMExx)

    Multiprotocol target plugins

    Storage media independence:

    * Virtualization of all storage media; transparent mapping of IO to LUNs
    * No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
    * Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.

    Standards compliance:

    * Full compliance with IETF (RFC 3720)
    * Full implementation of SPC-4 PRs and ALUA

    Significant code cleanups done by Christoph Hellwig.

    [jejb: fix up for new block bdev exclusive interface. Minor fixes from
    Randy Dunlap and Dan Carpenter.]
    Signed-off-by: Nicholas A. Bellinger
    Signed-off-by: James Bottomley

    Nicholas Bellinger