#
99cfb212 |
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07-Mar-2024 |
Colin Ian King <colin.i.king@gmail.com> |
scsi: target: iscsi: Remove unused variable xfer_len The variable 'xfer_len' is being initialized and incremented but it is never actually referenced in any other way. The variable is redundant and can be removed. Cleans up clang scan build warning: drivers/target/iscsi/iscsi_target_erl1.c:586:45: warning: variable 'xfer_len' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20240307104553.1980860-1-colin.i.king@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
42892679 |
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27-Sep-2023 |
Mike Christie <michael.christie@oracle.com> |
scsi: target: core: Kill transport_handle_cdb_direct() Move the code from transport_handle_cdb_direct() to target_submit() and have iSCSI call target_submit(). Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20230928020907.5730-5-michael.christie@oracle.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
0873fe44 |
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27-Apr-2022 |
Max Gurtovoy <mgurtovoy@nvidia.com> |
scsi: target: iscsi: Rename iscsi_session to iscsit_session The structure iscsi_session naming is used by the iSCSI initiator driver. Rename the target session to iscsit_session to have more readable code. Link: https://lore.kernel.org/r/20220428092939.36768-3-mgurtovoy@nvidia.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
be36d683 |
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27-Apr-2022 |
Max Gurtovoy <mgurtovoy@nvidia.com> |
scsi: target: iscsi: Rename iscsi_conn to iscsit_conn The structure iscsi_conn naming is used by the iSCSI initiator driver. Rename the target conn to iscsit_conn to have more readable code. Link: https://lore.kernel.org/r/20220428092939.36768-2-mgurtovoy@nvidia.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
66cd9d4e |
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27-Apr-2022 |
Max Gurtovoy <mgurtovoy@nvidia.com> |
scsi: target: iscsi: Rename iscsi_cmd to iscsit_cmd The structure iscsi_cmd naming is used by the iSCSI initiator driver. Rename the target cmd to iscsit_cmd to have more readable code. Link: https://lore.kernel.org/r/20220428092939.36768-1-mgurtovoy@nvidia.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
79366f0a |
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16-Jun-2021 |
Colin Ian King <colin.king@canonical.com> |
scsi: target: iscsi: Remove redundant continue statement The continue statement at the end of a loop has no effect, remove it. Link: https://lore.kernel.org/r/20210617114347.10247-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Addresses-Coverity: ("Continue has no effect")
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#
c942fddf |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
658c3122 |
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25-Jan-2019 |
Bart Van Assche <bvanassche@acm.org> |
scsi: target/iscsi: Simplify iscsit_dump_data_payload() Use a single loop to dump immediate data, padding and digest instead of using separate rx_data() calls for each type of data. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
0300b114 |
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25-Jan-2019 |
Bart Van Assche <bvanassche@acm.org> |
scsi: target/iscsi: Fix spelling of "unsolicited" Change "unsoliticed" into "unsolicited". Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
618baaf7 |
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25-Jan-2019 |
Bart Van Assche <bvanassche@acm.org> |
scsi: target/iscsi: Convert comments about locking into runtime checks Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
aaa00cc9 |
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27-Nov-2018 |
Bart Van Assche <bvanassche@acm.org> |
scsi: target/core: Fix TAS handling for aborted commands The TASK ABORTED STATUS (TAS) bit is defined as follows in SAM: "TASK_ABORTED: this status shall be returned if a command is aborted by a command or task management function on another I_T nexus and the control mode page TAS bit is set to one". TAS handling is spread over the target core and the iSCSI target driver. If a LUN RESET is received, the target core will send the TASK_ABORTED response for all commands for which such a response has to be sent. If an ABORT TASK is received, only the iSCSI target driver will send the TASK_ABORTED response for the commands for which that response has to be sent. That is a bug since all target drivers have to honor the TAS bit. Fix this by moving the code that handles TAS from the iSCSI target driver into the target core. Additionally, if a command has been aborted, instead of sending the TASK_ABORTED status from the context that processes the SCSI command send it from the context of the ABORT TMF. The core_tmr_abort_task() change in this patch causes the CMD_T_TAS flag to be set if a TASK_ABORTED status has to be sent back to the initiator that submitted the command. If that flag has been set transport_cmd_finish_abort() will send the TASK_ABORTED response. Cc: Nicholas Bellinger <nab@linux-iscsi.org> Cc: Mike Christie <mchristi@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: David Disseldorp <ddiss@suse.de> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
33b3f8ca |
|
11-Oct-2018 |
David Disseldorp <ddiss@suse.de> |
scsi: target: stash sess_err_stats on Data-Out timeout sess_err_stats are currently filled on NOP ping timeout, but not Data-Out timeout. Stash details of Data-Out timeouts using a ISCSI_SESS_ERR_CXN_TIMEOUT value for last_sess_failure_type. Signed-off-by: David Disseldorp <ddiss@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
d9a771fd |
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11-Oct-2018 |
David Disseldorp <ddiss@suse.de> |
scsi: target: log Data-Out timeouts as errors Data-Out timeouts resulting in connection outages should be logged as errors. Include the I_T Nexus in the message to aid path identification. Signed-off-by: David Disseldorp <ddiss@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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#
919765e9 |
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31-Oct-2017 |
Bart Van Assche <bvanassche@acm.org> |
target/iscsi: Use min() in iscsit_dump_data_payload() instead of open-coding it This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Mike Christie <mchristi@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
f7c9564a |
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22-Oct-2017 |
Kees Cook <keescook@chromium.org> |
target/iscsi: Convert timers to use timer_setup() In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Includes a fix for correcting an on-stack timer usage. Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Cc: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Jiang Yi <jiangyilism@gmail.com> Cc: Varun Prakash <varun@chelsio.com> Cc: linux-scsi@vger.kernel.org Cc: target-devel@vger.kernel.org Reviewed-and-Tested-by: Bart Van Assche <Bart.VanAssche@wdc.com> Signed-off-by: Kees Cook <keescook@chromium.org>
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#
8a47aa9d |
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23-May-2017 |
Bart Van Assche <bvanassche@acm.org> |
target/iscsi: Simplify timer manipulation code Move timer initialization from before add_timer() to the context where the containing object is initialized. Use setup_timer() and mod_timer() instead of open coding these. Use 'jiffies' instead of get_jiffies_64() when calculating expiry times because expiry times have type unsigned long, just like 'jiffies'. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: David Disseldorp <ddiss@suse.de> Signed-off-by: Kees Cook <keescook@chromium.org>
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#
8dcf07be |
|
14-Nov-2016 |
Bart Van Assche <bvanassche@acm.org> |
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>
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#
5a342521 |
|
22-Oct-2015 |
Bart Van Assche <bvanassche@acm.org> |
iscsi-target: Fix indentation + spelling + unreachable code Modify indentation such that the 'smatch' tool no longer complains about incorrect indentation + unreachable code. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
67f091f2 |
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07-Jan-2015 |
Sagi Grimberg <sagig@mellanox.com> |
iscsi-target: Move iscsi_target_[core,stat].h under linux include Seems strange to see in include/target/iscsi/iscsi_transport.h: include "../../../drivers/target/iscsi/iscsi_target_core.h" Move it to it's natural location. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
752d8680 |
|
03-Feb-2014 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix SNACK Type 1 + BegRun=0 handling This patch fixes Status SNACK handling of BegRun=0 to allow for all unacknowledged respones to be resent, instead of always assuming that BegRun would be an explicit value less than the current ExpStatSN. Reported-by: santosh kulkarni <santosh.kulkarni@calsoftinc.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
4c76251e |
|
05-Sep-2013 |
Nicholas Bellinger <nab@linux-iscsi.org> |
target: Update copyright ownership/year information to 2013 Update copyright ownership/year information for target-core, loopback, iscsi-target, tcm_qla2xx, vhost and iser-target. Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
561bf158 |
|
03-Jul-2013 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix iscsit_sequence_cmd reject handling for iser This patch moves ISCSI_OP_REJECT failures into iscsit_sequence_cmd() in order to avoid external iscsit_reject_cmd() reject usage for all PDU types. It also updates PDU specific handlers for traditional iscsi-target code to not reset the session after posting a ISCSI_OP_REJECT during setup. (v2: Fix CMDSN_LOWER_THAN_EXP for ISCSI_OP_SCSI to call target_put_sess_cmd() after iscsit_sequence_cmd() failure) Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
ba159914 |
|
03-Jul-2013 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Fix iscsit_add_reject* usage for iser This patch changes iscsit_add_reject() + iscsit_add_reject_from_cmd() usage to not sleep on iscsi_cmd->reject_comp to address a free-after-use usage bug in v3.10 with iser-target code. It saves ->reject_reason for use within iscsit_build_reject() so the correct value for both transport cases. It also drops the legacy fail_conn parameter usage throughput iscsi-target code and adds two iscsit_add_reject_cmd() and iscsit_reject_cmd helper functions, along with various small cleanups. (v2: Re-enable target_put_sess_cmd() to be called from iscsit_add_reject_from_cmd() for rejects invoked after target_get_sess_cmd() has been called) Cc: Or Gerlitz <ogerlitz@mellanox.com> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
3eccfdb0 |
|
05-May-2013 |
Shlomo Pongratz <shlomop@mellanox.com> |
iscsi-target: Fix processing of OOO commands Fix two issues in OOO commands processing done at iscsit_attach_ooo_cmdsn. Handle command serial numbers wrap around by using iscsi_sna_lt and not regular comparisson. The routine iterates until it finds an entry whose serial number is greater than the serial number of the new one, thus the new entry should be inserted before that entry and not after. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
3e1c81a9 |
|
06-Mar-2013 |
Nicholas Bellinger <nab@linux-iscsi.org> |
iscsi-target: Refactor RX PDU logic + export request PDU handling This patch refactors existing traditional iscsi RX side PDU handling to use iscsit_transport, and exports the necessary logic for external transport modules. This includes: - Refactor iscsit_handle_scsi_cmd() into PDU setup / processing - Add updated iscsit_handle_scsi_cmd() for tradtional iscsi code - Add iscsit_set_unsoliticed_dataout() wrapper - Refactor iscsit_handle_data_out() into PDU check / processing - Add updated iscsit_handle_data_out() for tradtional iscsi code - Add iscsit_handle_nop_out() + iscsit_handle_task_mgt_cmd() to accept pre-allocated struct iscsi_cmd - Add iscsit_build_r2ts_for_cmd() caller for iscsi_target_transport to handle ISTATE_SEND_R2T for TX immediate queue - Refactor main traditional iscsi iscsi_target_rx_thread() PDU switch into iscsi_target_rx_opcode() using iscsit_allocate_cmd() - Turn iscsi_target_rx_thread() process context into NOP for ib_isert side work-queue. v5 changes: - Make iscsit_handle_scsi_cmd() static (Fengguang) - Fix iscsit_handle_scsi_cmd() exception se_cmd leak (nab) v3 changes: - Add extra target_put_sess_cmd call in iscsit_add_reject_from_cmd after completion v2 changes: - Disable iscsit_ack_from_expstatsn() usage for RDMAExtentions=Yes - Disable iscsit_allocate_datain_req() usage for RDMAExtentions=Yes - Add target_get_sess_cmd() reference counting to iscsit_setup_scsi_cmd() - Add TFO->lio_check_stop_free() fabric API caller - Add export of iscsit_stop_dataout_timer() symbol - Add iscsit_build_r2ts_for_cmd() for iscsit_transport->iscsit_get_dataout() - Convert existing usage of iscsit_build_r2ts_for_cmd() to ->iscsit_get_dataout() - Drop RDMAExtentions=Yes specific check in iscsit_build_r2ts_for_cmd() - Fix RDMAExtentions -> RDMAExtensions typo (andy) - Pass correct dump_payload value into iscsit_get_immediate_data() for iscsit_handle_scsi_cmd() Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
de103c93 |
|
06-Nov-2012 |
Christoph Hellwig <hch@lst.de> |
target: pass sense_reason as a return value Pass the sense reason as an explicit return value from the I/O submission path instead of storing it in struct se_cmd and using negative return values. This cleans up a lot of the code pathes, and with the sparse annotations for the new sense_reason_t type allows for much better error checking. (nab: Convert spc_emulate_modesense + spc_emulate_modeselect to use sense_reason_t with Roland's MODE SELECT changes) Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
66c7db68 |
|
26-Sep-2012 |
Christoph Hellwig <hch@infradead.org> |
iscsit: use the itt_t abstract type Use the special itt_t type defined by the iscsi headers and the initiator to make sure it's an opaque value. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
67441b68 |
|
08-Jul-2012 |
Christoph Hellwig <hch@infradead.org> |
iscsit: use target_execute_cmd for WRITEs All three callers of transport_generic_handle_data are from user context and can use target_execute_cmd directly to handle the backend I/O submission of WRITE I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
ebf1d95c |
|
03-Apr-2012 |
Andy Grover <agrover@redhat.com> |
target/iscsi: Eliminate iscsi_cmd.data_length Redundant, just use iscsi_cmd->se_cmd.data_length once se_cmd is initialized, or hdr->data_length before then. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
8b1e1244 |
|
03-Apr-2012 |
Andy Grover <agrover@redhat.com> |
target/iscsi: Misc cleanups from Agrover (round 2) This patch includes the handful of squashed patches for target/iscsi from Andy's original series into lio-core/master code: *) Make iscsit_add_reject static *) Remove unused data_offset_end from iscsi_datain_req *) Remove "#if 0" stubs *) Rename iscsi_datain_req to cmd_datain_node *) Cleanups for built_r2ts_for_cmd() *) Cleanups for Cleanup build_sendtargets_response() Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
2fbb471e |
|
03-Apr-2012 |
Andy Grover <agrover@redhat.com> |
target/iscsi: Rename iscsi_cmd.i_list to iscsi_cmd.i_conn_node The name change makes it clear this list_head is so the cmd can be an item in the connection's conn_cmd_list. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
7d680f3b |
|
21-Dec-2011 |
Christoph Hellwig <hch@infradead.org> |
target: replace various cmd flags with a transport state Replace various atomic_ts used as flags in struct se_cmd with a single transport_state bitmap that requires t_state_lock to be held for modifications. In the target core that assumption generally is true, but some recently added code in the SRP target had to grow new lock calls. I can't say I like the way how it messes with the command state directly, but let's leave that for later. (Re-add missing ib_srpt.c changes that nab dropped..) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
e8904dc5 |
|
15-Jan-2012 |
Jesper Juhl <jj@chaosbits.net> |
iscsi-target: Fix up a few assignments A statement such as struct iscsi_node_attrib *na = na = iscsit_tpg_get_node_attrib(sess); has undefined behaviour since there are two assignments to 'na', strictly speaking (the order in which side-effects from the assignments take place is undefined since there's no intervening sequence point), and it looks unintentional in any case. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
#
c4795fb2 |
|
16-Nov-2011 |
Christoph Hellwig <hch@infradead.org> |
target: header reshuffle, part2 This reorganized the headers under include/target into: - target_core_base.h stays as is with all target-wide data stuctures and defines - target_core_backend.h contains the whole interface to I/O backends - target_core_fabric.h contains the whole interface to fabric modules Except for those only the various configfs macro headers stay around. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
|
#
03e98c9e |
|
04-Nov-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
target: Address legacy PYX_TRANSPORT_* return code breakage This patch removes legacy usage of PYX_TRANSPORT_* return codes in a number of locations and addresses cases where transport_generic_request_failure() was returning the incorrect sense upon CHECK_CONDITION status after the v3.1 converson to use errno return codes. This includes the conversion of transport_generic_request_failure() to process cmd->scsi_sense_reason and handle extra TCM_RESERVATION_CONFLICT before calling transport_send_check_condition_and_sense() to queue up response status. It also drops PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES legacy usgae, and returns TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE w/ a response for these cases. transport_generic_allocate_tasks(), transport_generic_new_cmd(), backend SCF_SCSI_DATA_SG_IO_CDB ->do_task(), and emulated ->execute_task() have all been updated to set se_cmd->scsi_sense_reason and return errno codes universally upon failure. This includes cmd->scsi_sense_reason assignment in target_core_alua.c, target_core_pr.c and target_core_cdb.c emulation code. Finally it updates fabric modules to remove the legacy usage, and for TFO->new_cmd_map() callers forwards return values outside of fabric code. iscsi-target has also been updated to remove a handful of special cases related to the cleanup and signaling QUEUE_FULL handling w/ ft_write_pending() (v2: Drop extra SCF_SCSI_CDB_EXCEPTION check during failure from transport_generic_new_cmd, and re-add missing task->task_error_status assignment in transport_complete_task) Cc: Christoph Hellwig <hch@lst.de> Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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#
387e96c0 |
|
08-Aug-2011 |
Dan Carpenter <error27@gmail.com> |
iscsi-target: forever loop bug in iscsit_attach_ooo_cmdsn() This patch fixes a forever loop bug in iscsit_attach_ooo_cmdsn() while walking sess->sess_ooo_cmdsn_list when the received CmdSN is less than the tail of the list. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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e48354ce |
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23-Jul-2011 |
Nicholas Bellinger <nab@linux-iscsi.org> |
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>
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