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2018-02-16scsi: ufs: sysfs: power descriptorStanislav Nijnikov2-0/+127
This patch introduces a sysfs group entry for the UFS power descriptor parameters. The group adds "power_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: ufs: sysfs: health descriptorStanislav Nijnikov5-0/+68
This patch introduces a sysfs group entry for the UFS health descriptor parameters. The group adds "health_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: ufs: sysfs: geometry descriptorStanislav Nijnikov3-0/+293
This patch introduces a sysfs group entry for the UFS geometry descriptor parameters. The group adds "geometry_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: ufs: sysfs: interconnect descriptorStanislav Nijnikov3-0/+45
This patch introduces a sysfs group entry for the UFS interconnect descriptor parameters. The group adds "interconnect_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: ufs: sysfs: device descriptorStanislav Nijnikov5-6/+359
This patch introduces a sysfs group entry for the UFS device descriptor parameters. The group adds "device_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: ufs: sysfs: attribute group for existing sysfs entries.Stanislav Nijnikov5-153/+178
This patch introduces attribute group to show existing sysfs entries. Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: scsi_debug: call resp_*() function after setting host_scribbleMartin Wilck1-20/+33
Error injection in scsi_debug (e.g. opts=16, SDEBUG_OPT_TRANSPORT_ERR) currently doesn't work correctly because the test for sqcp in resp_read_dt0() and similar resp_*() functions always fails. sqcp is set from cmnd->host_scribble, which is set in schedule_resp(), which is called from scsi_debug_queuecommand() after calling the resp_* function. Defer calling resp_*() until after cmnd->host_scribble is set in schedule_resp(). Fixes: c483739430f1 "scsi_debug: add multiple queue support" Signed-off-by: Martin Wilck <mwilck@suse.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-16scsi: scsi_transport_spi: make two const arrays static, shrinks object sizeColin Ian King1-2/+2
Don't populate the const read-only arrays spi_test_unit_ready and spi_test_unit_ready on the stack but instead make them static. Makes the object code smaller by over 100 bytes: Before: text data bss dec hex filename 40171 12832 128 53131 cf8b drivers/scsi/scsi_transport_spi.o After: text data bss dec hex filename 39922 12976 128 53026 cf22 drivers/scsi/scsi_transport_spi.o (gcc version 7.2.0 x86_64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: scsi_debug: reset injection flags for every_nth > 0Martin Wilck1-1/+6
If every_nth > 0, the injection flags must be reset for commands that aren't supposed to fail (i.e. that aren't "nth"). Otherwise, commands will continue to fail, like in the every_nth < 0 case. Signed-off-by: Martin Wilck <mwilck@suse.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: scsi_debug: implement IMMED bitDouglas Gilbert1-11/+65
The Start Stop Unit (SSU) command takes in the order of a second to complete on some SAS SSDs and longer on hard disks. Synchronize Cache (SC) can also take some time. Both commands have an IMMED bit in their cdbs for those apps that don't want to wait. This patch introduces a long delay for those commands when the IMMED bit is clear. Since SC is a media access command then when the fake_rw option is active, its cdb processing is skipped and it returns immediately. The SSU command is not altered by the setting of the fake_rw option. These actions are not changed by this patch. Changes since v1: - clear the cdb mask of SYNCHRONIZE CACHE(16) cdb in byte 1, bit 0 Changes: - add the SYNCHRONIZE CACHE(16) command - together with the existing START STOP UNIT and SYNCHRONIZE CACHE(10) commands process the IMMED bit in their cdbs - if the IMMED bit is set, return immediately - if the IMMED bit is clear, treat the delay parameter as having a unit of one second - in the SYNCHRONIZE CACHE processing do a bounds check Signed-off-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: scsi_debug: Fix pointer styling issuesJohn Pittman1-36/+36
Pointer styling issues exposed by checkpatch.pl in scsi_debug.c: ERROR: "foo * bar" should be "foo *bar" Fixed 37 total errors reported. [mkp: fixed typo noticed by Doug] Signed-off-by: John Pittman <jpittman@redhat.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: core: Reduce number of scsi_test_unit_ready() retriesBart Van Assche1-1/+1
Make scsi_test_unit_ready() send at most as many TURs as specified in the 'retries' argument instead of retries * (retries + 1) / 2. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: core: Move the eh_deadline module parameter definitionBart Van Assche1-6/+6
The eh_deadline definition occurs in the middle of the code for releasing a host. Avoid splitting the host release code by moving the definition of the eh_deadline parameter to the top of the hosts.c source file. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.com> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: core: scmd_eh_abort_handler(): Add a commentBart Van Assche1-0/+6
After the patch that introduced this function was posted on the linux-scsi mailing list an explanation was posted why this patch is correct. Since that explanation contains important information, add a summary of it above the code that explanation applies to. See also http://www.spinics.net/lists/linux-scsi/msg106326.html. References: e494f6a72839 ("[SCSI] improved eh timeout handler") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: pmcraid: Use sgl_alloc_order() and sgl_free_order()Bart Van Assche3-40/+6
Use the sgl_alloc_order() and sgl_free_order() functions instead of open coding these functions. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: pmcraid: Remove an unused structure memberBart Van Assche1-1/+0
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: ipr: Use sgl_alloc_order() and sgl_free_order()Bart Van Assche3-42/+10
Use the sgl_alloc_order() and sgl_free_order() functions instead of open coding these functions. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: pmcraid: remove redundant initializations of pointer 'ioadl'Colin Ian King1-4/+4
There are several occurrances where pointer ioadl is initialized with a value that is never read and where it is re-assigned a new value later on, hence the initialization is redundant and can be removed. Cleans up clang warnings: drivers/scsi/pmcraid.c:1028:29: warning: Value stored to 'ioadl' during its initialization is never read drivers/scsi/pmcraid.c:3178:29: warning: Value stored to 'ioadl' during its initialization is never read drivers/scsi/pmcraid.c:5495:29: warning: Value stored to 'ioadl' during its initialization is never read drivers/scsi/pmcraid.c:5668:29: warning: Value stored to 'ioadl' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: isci: remove redundant initialization to 'bit'Colin Ian King1-1/+1
Variable bit is initialized with a value that is never read and is being updated immediately after the initialization, hence the initialization is redundant and can be removed. Cleans up clang warning: drivers/scsi/isci/host.c:2769:8: warning: Value stored to 'bit' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: sym53c416: avoid section mismatch with LTOArnd Bergmann1-1/+1
Building with link time optimizations produces a false-positive section mismatch warning: WARNING: vmlinux.o(.data+0xf8c8): Section mismatch in reference from the variable driver_template.lto_priv.6915 to the function .init.text:sym53c416_detect() The variable driver_template.lto_priv.6915 references the function __init sym53c416_detect() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console The ->detect callback is always entered from the init_this_scsi_driver() init function, but apparently LTO turns the optimized direct function call into an indirect call through a non-__initdata pointer. All drivers using init_this_scsi_driver() are for ancient hardware, and most don't mark the detect() callback as __init(), so I'm just removing the annotation here to kill off the warning instead of doing a larger rework. [mkp: typo] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: NCR53c406a: avoid section mismatch with LTOArnd Bergmann1-1/+1
Building with link time optimizations produces a false-positive section mismatch warning: WARNING: vmlinux.o(.data+0xf7e8): Section mismatch in reference from the variable driver_template.lto_priv.6914 to the function .init.text:NCR53c406a_detect() The variable driver_template.lto_priv.6914 references the function __init NCR53c406a_detect() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console The ->detect callback is always entered from the init_this_scsi_driver() init function, but apparently LTO turns the optimized direct function call into an indirect call through a non-__initdata pointer. All drivers using init_this_scsi_driver() are for ancient hardware, and most don't mark the detect() callback as __init(), so I'm just removing the annotation here to kill off the warning instead of doing a larger rework. [mkp: typo] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: aacraid: Auto detect INTx or MSIx mode during sync cmd processingRaghava Aditya Renukunta2-6/+17
During sync command processing, if legacy INTx status indicates command is not completed, sample the MSIx register and check if it indicates command completion, set controller MSIx enabled flag. Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com> Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Dave Carroll <david.carroll@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: aacraid: Preserve MSIX mode in the OMR registerRaghava Aditya Renukunta1-0/+22
Preserve the current MSIX mode value in the OMR before rewriting the OMR to initiate the IOP or Soft Reset. Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com> Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Dave Carroll <david.carroll@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: aacraid: Implement DropIO sync commandRaghava Aditya Renukunta2-6/+159
IOP_RESET takes a long time to complete. If controller is in a state where we can bring it back with init struct, send a DropIO sync command instead. - If controller is faulted perform standard IOP_RESET in aac_srcv_init. - If controller is not faulted get adapter properties and extended properties. - Update the sa_firmware variable and determine if DropIO request is supported. - Issue DropIO request, and get the number of outstanding commands. - If all commands are complete with success (CT_OK), consider IOP_RESET is complete. - If any commands timeout, Perform the IOP_RESET. Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com> Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com> Reviewed-by: Dave Carroll <david.carroll@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: qedf: use correct strncpy() sizeArnd Bergmann1-1/+1
gcc-8 warns during link-time optimization that the strncpy() call passes the size of the source buffer rather than the destination: drivers/scsi/qedf/qedf_dbg.c: In function 'qedf_uevent_emit': include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=] This changes it to strscpy() with the correct length, guaranteeing a properly nul-terminated string of the right size. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: qedf: fix LTO-enabled buildArnd Bergmann3-15/+16
The prototype for qedf_dbg_fops/qedf_debugfs_ops doesn't match the definition, which causes the final link to fail with link-time optimizations: drivers/scsi/qedf/qedf_main.c:34: error: type of 'qedf_dbg_fops' does not match original declaration [-Werror=lto-type-mismatch] extern struct file_operations qedf_dbg_fops; drivers/scsi/qedf/qedf_debugfs.c:443: note: 'qedf_dbg_fops' was previously declared here const struct file_operations qedf_dbg_fops[] = { drivers/scsi/qedf/qedf_main.c:33: error: type of 'qedf_debugfs_ops' does not match original declaration [-Werror=lto-type-mismatch] extern struct qedf_debugfs_ops qedf_debugfs_ops; drivers/scsi/qedf/qedf_debugfs.c:102: note: 'qedf_debugfs_ops' was previously declared here struct qedf_debugfs_ops qedf_debugfs_ops[] = { This corrects the prototype and moves it into a shared header file where it belongs. The file operations can also be marked 'const' like the qedf_debugfs_ops. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: libfc: remove redundant initialization of 'disc'Colin Ian King1-1/+1
Pointer disc is being intializated a value that is never read and then re-assigned the same value later on, hence the initialization is redundant and can be removed. Cleans up clang warning: drivers/scsi/libfc/fc_disc.c:734:18: warning: Value stored to 'disc' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: qedf: remove redundant initialization of 'fcport'Colin Ian King1-1/+1
Pointer fcport is initialized with a value that is never read, it is re-assigned a new value later on, hence the initialization is redundant and can be removed. Cleans up clang warning: drivers/scsi/qedf/qedf_io.c:920:21: warning: Value stored to 'fcport' during its initialization is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: qedi: fix building with LTOArnd Bergmann4-7/+7
When link-time optimizations are enabled, qedi fails to build because of mismatched prototypes: drivers/scsi/qedi/qedi_gbl.h:27:37: error: type of 'qedi_dbg_fops' does not match original declaration [-Werror=lto-type-mismatch] extern const struct file_operations qedi_dbg_fops; ^ drivers/scsi/qedi/qedi_debugfs.c:239:30: note: 'qedi_dbg_fops' was previously declared here const struct file_operations qedi_dbg_fops[] = { ^ drivers/scsi/qedi/qedi_gbl.h:26:32: error: type of 'qedi_debugfs_ops' does not match original declaration [-Werror=lto-type-mismatch] extern struct qedi_debugfs_ops qedi_debugfs_ops; ^ drivers/scsi/qedi/qedi_debugfs.c:102:25: note: 'qedi_debugfs_ops' was previously declared here struct qedi_debugfs_ops qedi_debugfs_ops[] = { This changes the declaration to match the definition, and adapts the users as necessary. Since both array can be constant here, I'm adding the 'const' everywhere for consistency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: scsi_debug: Add two new parameters to scsi_debug driverLaurence Oberman1-2/+8
This patch adds two new parameters to the scsi_debug driver. During various fault injection scenarios it would be useful to be able to pick a specific starting sector and number of follow on sectors where a MEDIUM ERROR for reads would be returned against a scsi-debug device. Right now this only works against sector 0x1234 and OPT_MEDIUM_ERR_NUM follow on sectors. However during testing of md-raid and other scenarios I wanted more flexibility. The idea is add 2 new parameters: medium_error_start medium_error_count If medium_error_start is set then we don't use the default of OPT_MEDIUM_ERR_ADDR, but use that set value. If medium_error_count is set we use that value otherwise default to OPT_MEDIUM_ERR_NUM. Signed-off-by: Laurence Oberman <loberman@redhat.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: scsi_debug: Simplify request tag decodingBart Van Assche1-26/+11
Since commit 64d513ac31bd ("scsi: use host wide tags by default") all SCSI requests have a tag, whether or not scsi-mq is enabled. Additionally, it is safe to use blk_mq_unique_tag() and blk_mq_unique_tag_to_hwq() for legacy SCSI queues. Since this means that the sdebug_mq_active variable is superfluous, remove it. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Douglas Gilbert <dgilbert@interlog.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: raid_class: Add 'JBOD' RAID levelHannes Reinecke2-0/+2
Not a real RAID level, but some HBAs support JBOD in addition to the 'classical' RAID levels. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: qla2xxx: Fix function argument descriptionsBart Van Assche12-104/+125
Bring the kernel-doc headers in sync with the function argument lists. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: qla4xxx: Move an array from a .h into a .c fileBart Van Assche2-2/+2
This patch does not change any functionality but slightly reduces the size of the compiled kernel module. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: qla4xxx: Remove unused symbolsBart Van Assche1-5/+0
Remove a few preprocessor macros that are not used anywhere. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: qla2xxx: Remove unused symbolsBart Van Assche1-4/+0
Remove a few preprocessor macros that are not used anywhere. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: qla2xxx: Use %p for printing pointersBart Van Assche1-2/+2
Using %p instead of %lx to print a pointer allows to remove a cast. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Update 11.4.0.7 modified files for 2018 CopyrightJames Smart17-21/+20
Updated Copyright in files updated 11.4.0.7 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: update driver version to 11.4.0.7James Smart1-1/+1
Update the driver version to 11.4.0.7 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix nonrecovery of NVME controller after cable swap.James Smart1-11/+13
In a test that is doing large numbers of cable swaps on the target, the nvme controllers wouldn't reconnect. During the cable swaps, the targets n_port_id would change. This information was passed to the nvme-fc transport, in the new remoteport registration. However, the nvme-fc transport didn't update the n_port_id value in the remoteport struct when it reused an existing structure. Later, when a new association was attempted on the remoteport, the driver's NVME LS routine would use the stale n_port_id from the remoteport struct to address the LS. As the device is no longer at that address, the LS would go into never never land. Separately, the nvme-fc transport will be corrected to update the n_port_id value on a re-registration. However, for now, there's no reason to use the transports values. The private pointer points to the drivers node structure and the node structure is up to date. Therefore, revise the LS routine to use the drivers data structures for the LS. Augmented the debug message for better debugging in the future. Also removed a duplicate if check that seems to have slipped in. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Treat SCSI Write operation Underruns as an errorJames Smart1-5/+3
Currently, write underruns (mismatch of amount transferred vs scsi status and its residual) detected by the adapter are not being flagged as an error. Its expected the target controls the data transfer and would appropriately set the RSP values. Only read underruns are treated as errors. Revise the SCSI error handling to treat write underruns as an error as well. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix header inclusion in lpfc_nvmetJames Smart1-1/+1
The driver was inappropriately pulling in the nvme host's nvme.h header. What it really needed was the standard <linux/nvme.h> header. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Validate adapter support for SRIU optionJames Smart3-4/+19
When using the special option to suppress the response iu, ensure the adapter fully supports the feature by checking feature flags from the adapter and validating the support when formatting the WQE. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix SCSI io host reset causing kernel crashJames Smart2-1/+16
During SCSI error handling escalation to host reset, the SCSI io routines were moved off the txcmplq, but the individual io's ON_CMPLQ flag wasn't cleared. Thus, a background thread saw the io and attempted to access it as if on the txcmplq. Clear the flag upon removal. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Indicate CONF support in NVMe PRLIJames Smart3-7/+5
Revise the NVME PRLI to indicate CONF support. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix issue_lip if link is disabledJames Smart1-0/+5
The driver ignored checks on whether the link should be kept administratively down after a link bounce. Correct the checks. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix soft lockup in lpfc worker thread during LIP testingJames Smart1-2/+3
During link bounce testing in a point-to-point topology, the host may enter a soft lockup on the lpfc_worker thread: Call Trace: lpfc_work_done+0x1f3/0x1390 [lpfc] lpfc_do_work+0x16f/0x180 [lpfc] kthread+0xc7/0xe0 ret_from_fork+0x3f/0x70 The driver was simultaneously setting a combination of flags that caused lpfc_do_work()to effectively spin between slow path work and new event data, causing the lockup. Ensure in the typical wq completions, that new event data flags are set if the slow path flag is running. The slow path will eventually reschedule the wq handling. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Allow set of maximum outstanding SCSI cmd limit for a targetJames Smart2-13/+30
Make the attribute writeable. Remove the ramp up to logic as its unnecessary, simply set depth. Add debug message if depth changed, possibly reducing limit, yet our outstanding count has yet to catch up with it. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix RQ empty firmware trapJames Smart5-15/+51
When nvme target deferred receive logic waits for exchange resources, the corresponding receive buffer is not replenished with the hardware. This can result in a lack of asynchronous receive buffer resources in the hardware, resulting in a "2885 Port Status Event: ... error 1=0x52004a01 ..." message. Correct by replenishing the buffer whenenver the deferred logic kicks in. Update corresponding debug messages and statistics as well. [mkp: applied by hand] Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-12scsi: lpfc: Fix IO failure during hba reset testing with nvme io.James Smart1-2/+2
A stress test repeatedly resetting the adapter while performing io would eventually report I/O failures and missing nvme namespaces. The driver was setting the nvmefc_fcp_req->private pointer to NULL during the IO completion routine before upcalling done(). If the transport was also running an abort for that IO, the driver would fail the abort with message 6140. Failing the abort is not allowed by the nvme-fc transport, as it mandates that the io must be returned back to the transport. As that does not happen, the transport controller delete has an outstanding reference and can't complete teardown. The NULL-ing of the private pointer should be done only when the io is considered complete. It's complete when the adapter returns the exchange with the "exchange busy" flag clear. Move the NULL'ing of the structure to the done case. This leaves the io contexts set while it is busy and until the subsequent XRI_ABORTED completion which returns the exchange is received. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-10 03:11:25 +0300