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path: root/drivers/scsi/bfa/bfad_bsg.c
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2012-10-07[SCSI] bfa: Add support to read/update the FRU data.Krishna Gudipati
- Add FRU sub-module to support FRU read/write/update. - Add support to read/write from the temp FRU module. [jejb: fix checkpatch issues] Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Add support to configure min/max bandwidth for a pcifnKrishna Gudipati
- Added support to configure minimum bandwidth for a pcifn. - Minimum bandwith is guaranteed at per queue level. - Added support to update pcifn bandwidth dynamically without a server reboot. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Add support for IO throttling at port levelKrishna Gudipati
Add capability to limit the number of exchanges on a port to avoid queue-full conditions from the target side. Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com> Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Add support for user to configure bandwidth on QoS prioritiesKrishna Gudipati
Made changes to provide an option for user to configure the bandwidth percentage for High/Medium/Low QoS priorities. Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com> Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Add diagnostic port (D-Port) supportKrishna Gudipati
- Introduced support for D-Port which is a new port mode during which link level diagnostics can be run. - Provided mechanism to dynamically configure D-Port and initiate diagnostic tests to isolate any link level issues. - In D-Port mode, the HBA port does not participate in fabric or login to the remote device or run data traffic. - Diagnostic tests include running various loopback tests in conjunction with the attached device. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-07[SCSI] bfa: Add support for FC Arbitrated Loop topology.Krishna Gudipati
- Add private loop topology support at 2G/4G/8G speeds with following limitations 1. No support for multiple initiators in the loop 2. No public loop support. If attached to a loop with an FL_Port, device continues to work as a private NL_Port in the loop 3. No auto topology detection. User has to manually set the configured topology to loop if attaching to loop. - When loop topology is configured, enabling FC port features QoS/Trunk/TRL are not allowed and vice versa. Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24[SCSI] bfa: Add support for max target ports discoveryKrishna Gudipati
- Changes to avoid discovering NPIV port as remote port by the other NPIV ports created on same physical port when all the NPIV ports are part of the same zone in a fabric. - Provided mechanism to support maximum number of target ports for a given initiator port (physical port + NPIV ports) irrespective of the way in which the initiator and target ports are zoned in the fabric. - Introduced module_parameter max_rport_logins to restrict number of remote ports discovery which includes target and initiator remote ports. Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24[SCSI] bfa: Make changes to FCXP resource management.Krishna Gudipati
- Made changes to split FCXP resources as request and response resources. - The split will reduce the contention for FCXP resources in an open zone config. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24[SCSI] bfa: FCS remote port enhancements.Krishna Gudipati
- Introduced rport qualifier structure and modified design to export remote ports with valid pid or valid pwwn to the user space. - Introduced old_pid field in the rport structure and made changes to prevent re-creating a new remote port for an already existing rport that is transitioning to a delete state. (Happens if we receive a RSCN on the existing remote port that is getting deleted). Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20[SCSI] bfa: Fix to set correct return error codes and misc cleanup.Krishna Gudipati
- Remove unnecessary if NULL check in function bfa_fcs_vport_free(). - Set correct return error codes in case of memory allocation failure in the BSG ELS/CT passthru command handler. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28[SCSI] bfa: BSG and User interface fixes.Krishna Gudipati
Made changes to set the rport maxfrsize param to use a value that is equal to or less than the Buffer-to-Buffer Receive Data_Field size specified in the Common Service Parameters. Increased the diag memtest timeout for the Brocade-1860 adapters. Made changes to enable valid port speed configuration check for all adapters. Made changes to increase the max hw segments in a request, in order to support larger data transfers from user space. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-28[SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation.Krishna Gudipati
Made changes to the Fabric Assigned Address(FAA) feature implementation. Introduced the IOCFC state machine, which now handles the FAA logic, IOC and BFA sub-modules enablement. Removed un-wanted FAA enable/disable routines; FAA is enabled by default. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-03-27[SCSI] bfa: Fix endian bug in bfad_iocmd_debug_fw_core().Santosh Nayak
Casting pointer from native data type to other type is endian-sensitive. "iocmd->offset" is 64 bit but we use only first 32 bit. It works in little-endian system but in big-endian system it will break. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Acked-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-19[SCSI] bfa: don't leak mem in bfad_im_bsg_els_ct_request()Jesper Juhl
If 'drv_fcxp = kzalloc(sizeof(struct bfad_fcxp), GFP_KERNEL);' fails and returns NULL, then we'll leak the memory allocated to 'bsg_fcpt' when we jump to 'out:' and the variable subsequently goes out of scope. Also remove the cast of the kzalloc() return value. kzalloc() returns a void* which is implicitly converted, so the explicit cast is pointless. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-10[SCSI] bfa: Implement LUN Masking feature using the SCSI Slave Callouts.Krishna Gudipati
This patch re-implements LUN Masking feature using SCSI Slave Callouts. With the new design in the slave_alloc entry point; for each new LUN discovered we check with our internal LUN Masking config whether to expose or to mask this particular LUN. We return -ENXIO (No such device or address) from slave_alloc for the LUNs we don't want to be exposed. We also notify the SCSI mid-layer to do a sequential LUN scan rather than REPORT_LUNS based scan if LUN masking is enabled on our HBA port, since a -ENXIO from any LUN in REPORT_LUNS based scan translates to a scan abort. This patch also handles the dynamic lun masking config change from enable to disable or vice-versa by resetting sdev_bflags of LUN 0 appropriately. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Added support to configure lunmaskingKrishna Gudipati
- Added support to enable / disable lunmasking on Brocade adapter ports. - Added support to query / clear lunmasking configuration. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Add support to collect / reset fabric stats.Krishna Gudipati
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Added support to configure QOS and collect stats.Krishna Gudipati
- Added support to configure QOS on Brocade adapter ports. - Added support to collect / reset QOS statistics. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Add support to configure trunking on Brocade adapter ports.Krishna Gudipati
- Added logic to enable / disable trunking on Brocade adapter ports. - Added logic to query trunking info. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Add support to configure and query flash boot partitionKrishna Gudipati
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Added support to collect and reset fcport statsKrishna Gudipati
- Added support to collect and reset fcport stats. - Modified design to allow multiple requests for fcport stats. - fcport will remember the stats request in its stats_pending queue and service each of the queued requests after receiving a firmware response for the prior request. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Add support for IO profiling.Krishna Gudipati
- Made changes to support IO profiling. - Added support to configure and query IO profiling info. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Extend BSG to support more user commandsKrishna Gudipati
Extended BSG to support stats, port log and trace reset and to support adapter, port SET operations. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: use negative error return values in all functionsKrishna Gudipati
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27[SCSI] bfa: Add FC-transport based Asynchronous Event Notification support.Krishna Gudipati
- Added support to post vendor unique events on fc_host. - Supports adapter, port, ioc, flash and remote port based AEN events. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Driver and BSG enhancements.Krishna Gudipati
- Added a new module parameter max_xfer_size to set the max_sectors in the scsi_host template. - Added logic to handle request_irq() failure so that msix vector resource is de-allocated immediately when failure happens. - BSG enhancements to collect vHBA releated info and port log. - Removed the workaround of incrementing the module refcnt on bsg request. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added support to query PHY.Krishna Gudipati
- Added PHY sub-module. - Implemented interface to obtain stats and to read/update the fw from the PHY module. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added HBA diagnostics support.Krishna Gudipati
- Added diagnostics sub-module to BFA. - Implemented interface to perform memtest/loopback test and some other diagnostics tests. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added support for flash configurationKrishna Gudipati
- Added flash sub-module. - Implemented the interface to read/erase/update flash partition. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added support to obtain SFP info.Krishna Gudipati
- Added SFP sub-module to BFA. - Added interface to collect sfp media info and sfp speed. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added support for CEE info and stats query.Krishna Gudipati
- Added CEE sub-module. - Added support to collect stats/cee module info using BSG interface. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Extend BSG interface.Krishna Gudipati
- Added support to collect driver/fw stats. - Added support to perform adapter/ioc enable, disable operations. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Added Fabric Assigned Address(FAA) supportKrishna Gudipati
- Updated/added data structures and definitions to support FAA protocol. - Modified the IOC state machine to support FAA. - Introduced FAA feature configuration - enable/disable/query. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Enable ASIC block configuration and query.Krishna Gudipati
- Added ASIC block configuration APIs: - to create/delete/update the physical functions - to do adapter/port mode configuration - to query the current ASIC block configuration. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29[SCSI] bfa: Add BSG interface to support ELS, CT and vendor commands.Krishna Gudipati
- Added BSG interface support to BFA driver - Adds support to send ELS/CT FC passthru commands and few vendor specific BSG requests. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>