- 27 Mar, 2012 14 commits
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James Smart authored
Signed-off-by:
Alex Iannicelli <alex.iannicelli@emulex.com> Signed-off-by:
James Smart <james.smart@emulex.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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Petr Uzel authored
Adapt comment and printk string after renaming sd_init_command to sd_prep_fn Adapt comment and printk string after renaming sd_attach to sd_probe Signed-off-by:
Petr Uzel <petr.uzel@suse.cz> Acked-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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Santosh Yaraganavi authored
This patch adds support for Universal Flash Storage(UFS) host controllers. The UFS host controller driver includes host controller initialization method. The Initialization process involves following steps: - Initiate UFS Host Controller initialization process by writing to Host controller enable register - Configure UFS Host controller registers with host memory space datastructure offsets. - Unipro link startup procedure - Check for connected device - Configure UFS host controller to process requests - Enable required interrupts - Configure interrupt aggregation [jejb: fix warnings in 32 bit compile] Signed-off-by:
Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by:
Vinayak Holikatti <vinholikatti@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@linaro.org> Reviewed-by:
Vishak G <vishak.g@samsung.com> Reviewed-by:
Girish K S <girish.shivananjappa@linaro.org> Reviewed-by:
Namjae Jeon <linkinjeon@gmail.com> Signed-off-by:
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Petr Uzel authored
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Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by:
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- 19 Mar, 2012 1 commit
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Lan Tianyu authored
The sd_check_event() will be called periodly even when the device is in the suspended status to check media event. The scsi_test_unit_ready() in the sd_check_event() will issue scsi cmd request. Issuing scsi request when the device is in the suspeneded status will cause problem. For example, when a usb flash disk in the suspended status, scsi_test_unit_ready() issues a scsi request. The request will be returned as failed because the usb device is not active. The patch adds scsi_autopm_get_device() and scsi_autopm_put_device() around scsi_test_unit_ready() in the sd_check_event() to resolve such problem. Signed-off-by:
Lan Tianyu <tianyu.lan@intel.com> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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- 29 Feb, 2012 25 commits
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Vikas Chaudhary authored
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Vikas Chaudhary authored
1. Do not initialise globals to 0 2. Fix wrong spelling in debug message 3. Modified debug log messages Signed-off-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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Vikas Chaudhary authored
Fix following warning:- drivers/scsi/qla4xxx/ql4_os.c:35:5: warning: symbol 'ql4xdisablesysfsboot' was not declared. Should it be static? drivers/scsi/qla4xxx/ql4_iocb.c:461:5: warning: symbol 'qla4xxx_send_mbox_iocb' was not declared. Should it be static? drivers/scsi/qla4xxx/ql4_os.c:3025:6: warning: symbol 'qla4xxx_do_work' was not declared. Should it be static? Signed-off-by:
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Manish Rangankar authored
This patch will allow iscsiadm to create multiple session for the same target on per host. Signed-off-by:
Manish Rangankar <manish.rangankar@qlogic.com> Signed-off-by:
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Mike Christie authored
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Mike Christie authored
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Nilesh Javali authored
For offload iSCSI like qla4xxx CHAP entries are stored in FLASH. This patch adds support to list CHAP entries stored in FLASH and delete specified CHAP entry from FLASH using iscsi tools. Signed-off-by:
Nilesh Javali <nilesh.javali@qlogic.com> Signed-off-by:
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Nilesh Javali authored
For offload iSCSI like qla4xxx CHAP entries are stored in FLASH. This patch adds support to list CHAP entries stored in FLASH and delete specified CHAP entry from FLASH using iscsi tools. Signed-off-by:
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Santosh Nayak authored
1. Fix endian issue. 2. Fix the following warning : " drivers/scsi/pm8001/pm8001_hwi.c:2932:32: warning: comparison between ‘enum sas_device_type’ and ‘enum sas_dev_type’". 3. Few code optimization. Signed-off-by:Santosh Nayak <santoshprasadnayak@gmail.com> Acked-by:
Jack Wang <jack_wang@usish.com> Signed-off-by:
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Santosh Nayak authored
There is a possble racing scenario. 'process_oq' is called by two routines, as shown below. pm8001_8001_dispatch = { ....... .isr = pm8001_chip_isr --> process_oq,// A .isr_process_oq = process_oq, // B ..... } process_oq() --> process_one_iomb() --> mpi_sata_completion() In 'mpi_sata_completion', "pm8001_ha->lock" is first released. It means lock is taken before, which is true for the context A, as 'pm8001_ha->lock' is taken in 'pm8001_chip_isr()' But for context B there is no lock taken before and pm8001_ha->lock is unlocked in 'mpi_sata_completion()'. This may unlock the lock taken in context A. Possible racing ?? If 'pm8001_ha->lock' is taken in 'process_oq()' instead of 'pm8001_chip_isr' then the above issue can be avoided. Signed-off-by: -
Santosh Nayak authored
Static checker is giving following warning: " error: calling 'spin_unlock_irqrestore()' with bogus flags" The code flow is as shown below: process_oq() --> process_one_iomb --> mpi_sata_completion In 'mpi_sata_completion' the first call for 'spin_unlock_irqrestore()' is with flags=0, which is as good as 'spin_unlock_irq()' ( unconditional interrupt enabling). So for better performance 'spin_unlock_irqrestore()' can be replaced with 'spin_unlock_irq()' and 'spin_lock_irqsave()' can be replaced by 'spin_lock_irq()'. Signed-off-by:
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Wayne Boyer authored
This patch updates some PCI ID definitions for new adapters based on the next generation 64 bit IOA PCI interface chip. Signed-off-by:
Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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Dan Carpenter authored
This silences a static checker warning. Also we're always adding new types of firmware, so it might fix a bug in real life some day. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Andrzej Jakowski authored
This patch fixes scenario where driver removal should be possible only when driver is in READY state. Also it removes redundant invocation of routine disabling SCU interrupts - this method is called somewhere else in driver deinitialization path. Signed-off-by:
Andrzej Jakowski <andrzej.jakowski@intel.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Dan Williams authored
isci occasionally spews messages like: isci 0000:03:00.0: sci_phy_event_handler: PHY starting substate machine received unexpected event_code b3940000 ...which is not very helpful, since we don't know which controller, which phy, the exact state, or a decode of the event. Signed-off-by:
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Dan Williams authored
Debugging the driver requires tracing the state transtions and tracing state names is less work than decoding numbers. Signed-off-by:
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Dan Williams authored
If userspace requests a phy reset, treat that as a request for the phy to be enabled since that is the effect on hardware. Signed-off-by:
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Dan Williams authored
If userspace has decided to disable a phy the kernel should honor that and not inadvertantly re-enable the phy via error recovery. This is more straightforward in the sata case where link recovery (via libata-eh) is separate from sas_task cancelling in libsas-eh. Teach libsas to accept -ENODEV as a successful response from I_T_nexus_reset ('successful' in terms of not escalating further). This is a more comprehensive fix then "libsas: don't recover 'gone' devices in sas_ata_hard_reset()", as it is no longer sata-specific. aic94xx does check the return value from sas_phy_reset() so if the phy is disabled we proceed with clearing the I_T_nexus. Signed-off-by: -
Dan Williams authored
If discovery returns 0 for target_port_protocols but shows an attached sata device, just report SAS_PROTOCOL_SATA in the identify data so userspace can reliably search for sata devices in the domain. Signed-off-by:
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Dan Williams authored
Before: $ cat /sys/class/sas_phy/phy-6\:3/device_type none $ cat /sys/class/sas_phy/phy-6\:3/target_port_protocols none After: $ cat /sys/class/sas_phy/phy-6\:3/device_type end device $ cat /sys/class/sas_phy/phy-6\:3/target_port_protocols sata Also downgrade the phy_list_lock to _irq instead of _irqsave since libsas will never call sas_get_port_device with interrupts disbled. Signed-off-by:
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Dan Williams authored
libata issues follow up srsts when the controller has a hard time recording the signature-fis after a reset, or if the link supports port multipliers. libsas does not support port multipliers and no current libsas lldds appear to need help retrieving the signature fis. Revert it for now to remove confusion. Signed-off-by:
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Dan Williams authored
Until all sas_tasks are known to no longer be in-flight this flag gates late completions from colliding with error handling. However, it must be cleared prior to the submission of scsi_send_eh_cmnd() requests, otherwise those commands will never be completed correctly. This was spotted by slub debug: ============================================================================= BUG sas_task: Objects remaining on kmem_cache_close() ----------------------------------------------------------------------------- INFO: Slab 0xffffea001f0eba00 objects=34 used=1 fp=0xffff8807c3aecb00 flags=0x8000000000004080 Pid: 22919, comm: modprobe Not tainted 3.2.0-isci+ #2 Call Trace: [<ffffffff810fcdcd>] slab_err+0xb0/0xd2 [<ffffffff810e1c50>] ? free_percpu+0x31/0x117 [<ffffffff81100122>] ? kzalloc+0x14/0x16 [<ffffffff81100122>] ? kzalloc+0x14/0x16 [<ffffffff81100486>] kmem_cache_destroy+0x11d/0x270 [<ffffffffa0112bdc>] sas_class_exit+0x10/0x12 [libsas] [<ffffffff81078fba>] sys_delete_module+0x1c4/0x23c [<ffffffff814797ba>] ? sysret_check+0x2e/0x69 [<ffffffff8126479e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff81479782>] system_call_fastpath+0x16/0x1b INFO: Object 0xffff8807c3aed280 @offset=21120 INFO: Allocated in sas_alloc_task+0x22/0x90 [libsas] age=4615311 cpu=2 pid=12966 __slab_alloc.clone.3+0x1d1/0x234 kmem_cache_alloc+0x52/0x10d sas_alloc_task+0x22/0x90 [libsas] sas_queuecommand+0x20e/0x230 [libsas] scsi_send_eh_cmnd+0xd1/0x30c scsi_eh_try_stu+0x4f/0x6b scsi_eh_ready_devs+0xba/0x6ef sas_scsi_recover_host+0xa35/0xab1 [libsas] scsi_error_handler+0x14b/0x5fa kthread+0x9d/0xa5 kernel_thread_helper+0x4/0x10 Signed-off-by:
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Dan Williams authored
libsas ata error handling is already async but this does not help the scan case. Move initial link recovery out from under host->scan_mutex, and delay synchronization with eh until after all port probe/recovery work has been queued. Device ordering is maintained with scan order by still calling sas_rphy_add() in order of domain discovery. Since we now scan the domain list when invoking libata-eh we need to be careful to check for fully initialized ata ports. Acked-by:
Jeff Garzik <jgarzik@redhat.com> Signed-off-by:
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Dan Williams authored
ata devices are always scanned after ssp. Prior to the ata error handling reworks libsas would tend to scan devices in ascending expander phy order. Restore this ordering by deferring ssp discovery to a DISCE_PROBE event, and keep the probe order consistent with the discovery order, not the placement of sata devices. Signed-off-by:
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Dan Williams authored
If the phy is attached to a new sas address unregister the first address before processing the new attachment. Signed-off-by:
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