- 01 Oct, 2014 8 commits
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Sujit Reddy Thumma authored
In ->hce_enable_notify() callback the vendor specific initialization may carry out additional DME configuration using UIC commands and hence the UIC command completion interrupt enable bit should be set before the post reset notification. Add retries if the link-startup fails. This is required since due to hardware timing issues, the Uni-Pro link-startup might fail. The UFS HCI recovery procedure contradicts the Uni-Pro sequence. The UFS HCI specifies to resend DME_LINKSTARTUP command after IS.ULLS (link-lost interrupt) is received. The Uni-Pro specifies that if link-startup fails the link is in "down" state. The link-lost is indicated to the DME user only when the link is up. Hence, the UFS HCI recovery procedure of waiting for IS.ULLS and retrying link-startup may not work properly. At the end, if detection fails, power off (disable clocks, regulators, phy) if the UFS device detection fails. This saves power while UFS device is not embedded into the system. Signed-off-by:
Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by:
Dolev Raviv <draviv@codeaurora.org> Signed-off-by:
Christoph Hellwig <hch@lst.de>
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Subhash Jadavani authored
Currently reading query descriptor is more tightened to each descriptor type. This patch generalize the approach and allows reading any parameter from any query descriptor. Signed-off-by:
Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by:
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Raviv Shvili authored
Add the support for voting of the regulator powering the host controller logic. Signed-off-by:
Raviv Shvili <rshvili@codeaurora.org> Signed-off-by:
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Sujit Reddy Thumma authored
Add generic clock initialization support for UFSHCD platform driver. The clock info is read from device tree using standard clock bindings. A generic max-clock-frequency-hz property is defined to save information on maximum operating clock frequency the h/w supports. Signed-off-by:
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Sujit Reddy Thumma authored
UFS devices are powered by at most three external power supplies - - VCC - The flash memory core power supply, 2.7V to 3.6V or 1.70V to 1.95V - VCCQ - The controller and I/O power supply, 1.1V to 1.3V - VCCQ2 - Secondary controller and/or I/O power supply, 1.65V to 1.95V For some devices VCCQ or VCCQ2 are optional as they can be generated using internal LDO inside the UFS device. Add DT bindings for voltage regulators that can be controlled from host driver. Signed-off-by:
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Sujit Reddy Thumma authored
Some vendor specific controller versions might need to configure vendor specific - registers, clocks, voltage regulators etc. to initialize the host controller UTP layer and Uni-Pro stack. Provide some common initialization operations that can be used to configure vendor specifics. The methods can be extended in future, for example, for power mode transitions. The operations are vendor/board specific and hence determined with the help of compatible property in device tree. Signed-off-by:
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Subhash Jadavani authored
If LLD has added scsi device (by calling scsi_add_device) before scheduling async scsi_scan_host then scsi_finish_async_scan() will end up calling scsi_sysfs_add_sdev for scsi device which was already added by LLD. This patch fixes this issue by skipping the call to scsi_sysfs_add_sdev() if it's already visible to rest of the kernel. Signed-off-by:
Hannes Reinecke <hare@suse.de> Reviewed-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Subhash Jadavani authored
Some devices may respond with wrong type for well-known logical units. This patch forces well-known type for devices which doesn't report it correct. Signed-off-by:
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- 30 Sep, 2014 7 commits
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Douglas Gilbert authored
A deadlock has been reported when the completion of SCSI commands (simulated by a timer) was surprised by a module removal. This patch removes one half of the offending locks around timer deletions. This fix is applied both to stop_all_queued() which is were the deadlock was discovered and stop_queued_cmnd() which has very similar logic. This patch should be applied both to the lk 3.17 tree and Christoph's drivers-for-3.18 tree. Tested-and-reported-by:
Milan Broz <gmazyland@gmail.com> Signed-off-by:
Douglas Gilbert <dgilbert@interlog.com> Signed-off-by:
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Mike Christie authored
Dan Carpenter found a issue where be2iscsi would copy the ip from userspace to the driver buffer before checking the len of the data being copied: http://marc.info/?l=linux-scsi&m=140982651504251&w=2 This patch just has us only copy what we the driver buffer can support. Cc: <stable@vger.kernel.org> Tested-by:
John Soni Jose <sony.john-n@emulex.com> Signed-off-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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Mike Christie authored
This just has iscsi_tcp support ISCSI_PARAM_LOCAL_PORT which exports the local port being used by the iscsi connection. Signed-off-by:
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John Soni Jose authored
Bump the driver version Signed-off-by:
Jayamohan Kallickal <jayamohan.kallickal@emulex.com> Signed-off-by:
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John Soni Jose authored
In the reboot/shutdown path, workqueue was destroyed after the adapter resource were freed. The task associated with workqueue was getting executed after resources were freed. This lead to kernel panic. Signed-off-by:
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Andreea-Cristina Bernat authored
The uses of "rcu_assign_pointer()" are NULLing out the pointers. According to RCU_INIT_POINTER()'s block comment: "1. This use of RCU_INIT_POINTER() is NULLing out the pointer" it is better to use it instead of rcu_assign_pointer() because it has a smaller overhead. The following Coccinelle semantic patch was used: @@ @@ - rcu_assign_pointer + RCU_INIT_POINTER (..., NULL) Signed-off-by:
Andreea-Cristina Bernat <bernat.ada@gmail.com> Acked-by:
Vasu Dev <vasu.dev@intel.com> Signed-off-by:
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Chris Leech authored
add support for 20 Gbit and 40 Gbit links Signed-off-by:
Chris Leech <cleech@redhat.com> Signed-off-by:
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- 26 Sep, 2014 1 commit
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Christoph Hellwig authored
Fix a typo in the IPR_IOASC_HW_CMD_FAILED declaration. Based on a patch from Wen Xiong <wenxiong@linux.vnet.ibm.com>. Signed-off-by:
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- 25 Sep, 2014 24 commits
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Himanshu Madhani authored
Signed-off-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by:
Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by:
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Saurav Kashyap authored
Signed-off-by:
Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by:
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Quinn Tran authored
Signed-off-by:
Quinn Tran <quinn.tran@qlogic.com> Signed-off-by:
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Himanshu Madhani authored
Signed-off-by:
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Quinn Tran authored
Through the qla target code, the qlt_send_term_exchange() routine is used in various different places to cleanup an exchange. For the case of IOCB request queue is full, the exchange is left unhandled/ dangling. Existing code does not have re-try logic to cleanup the exchange. This patch add retry logic to cleanup the exchange before letting new commands through. For the case of FW running out of exchanges, driver need to reply SAM_STAT_BUSY to the initiators. This patch add a pending queue for the busy reply in case IOCB queue is unable to handle the cmd. Cc: <stable@vger.kernel.org> Signed-off-by:
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Saurav Kashyap authored
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Arun Easi authored
ABTS path takes path similar to regular task management, but reset_count was not initialized when allocating mcmd causing the response to get dropped in qlt_xmit_tm_rsp. Fix this by initializing reset_count correctly. Signed-off-by:
Arun Easi <arun.easi@qlogic.com> Signed-off-by:
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Arun Easi authored
A chip reset can occur after driver submits command to the stack. Abort command processing if a chip reset has occurred or in progress when you get a follow up for a command. Signed-off-by:
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Arun Easi authored
Signed-off-by:
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Himanshu Madhani authored
tcm_qla2xxx_get_task_tag incorrectly assume command is qla_tgt_cmd. Add check to see if it's a scsi cmd or task mgmt command. Signed-off-by:
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Saurav Kashyap authored
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Arun Easi authored
Sequence level error recovery (aka FC Tape) is not really required for disk devices. On heavily loaded system, with slow turn around, a bunch of status enquiries using REC puts additional burden to the target, so just turn off SLER by default. Signed-off-by:
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Arun Easi authored
Turning logging bits for target mode ON dumps quite a lot verbose messages, remove those and change some of the IO path logging to use IO bits. Signed-off-by:
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Himanshu Madhani authored
Signed-off-by:
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Arun Easi authored
Cc: <stable@vger.kernel.org> Signed-off-by:
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Himanshu Madhani authored
This patch is to fix regression added by commit id 51a07f84. When allocating memory for new session original patch does not assign vha to op->vha resulting into NULL pointer access during qlt_create_sess_from_atio(). Cc: <stable@vger.kernel.org> Signed-off-by:
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Himanshu Madhani authored
Signed-off-by:
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Saurav Kashyap authored
Signed-off-by:
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Joe Carnuccio authored
Signed-off-by:
Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by:
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Sawan Chandak authored
Signed-off-by:
Sawan Chandak <sawan.chandak@qlogic.com> Signed-off-by:
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Chad Dupuis authored
If we fail to load one of the segments of firmware fail the operation instead of trying to continue which will lead to a system crash since the pointers to the next segment will not be updated correctly. Signed-off-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Chad Dupuis authored
Disable the PCI device during shutdown to prevent any races with other PCI code such as the AER handling code. Signed-off-by:
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Chad Dupuis authored
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Himanshu Madhani authored
For FA-WWPN capable device, ISP2031 and ISP27XX, when loop dead is detected by a driver, restore WWPN from NVRAM. Signed-off-by:
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