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path: root/drivers/scsi/bfa/bfa_fcs_rport.c
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* [SCSI] bfa: Fix bug_on condition in RPSC rsp handlingVijaya Mohan Guvva2013-06-261-2/+3
| | | | | | | | Fix bug_on condition check in RPSC (Report Port Speed Capabilities) response processing. Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] bfa: Support for FC BB credit recoveryVijaya Mohan Guvva2013-06-261-1/+1
| | | | | | | | | This patch includes changes to 1) Enable/disable fc credit recovery on Brocade FC adapter port operating at max supported speed. 2) Get credit recovery status and stats related to credit loss and recovered credits Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] bfa: fix for FC Direct Attach LUN discovery failureVijay Mohan Guvva2013-06-041-2/+2
| | | | | | | | | | | Resending the patch as it didn't make the linux-scsi list. This patch fixes fcs rport state machine to address ocassional Brocade FC Direct Attach LUN discovery failure due to not sending PLOGI accept to the target. Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] bfa: Add support for IO throttling at port levelKrishna Gudipati2012-10-071-1/+5
| | | | | | | | | 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>
* [SCSI] bfa: Add support for FC Arbitrated Loop topology.Krishna Gudipati2012-10-071-32/+250
| | | | | | | | | | | | | | | | - 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>
* [SCSI] bfa: Add support for max target ports discoveryKrishna Gudipati2012-09-241-104/+317
| | | | | | | | | | | | | | | - 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>
* [SCSI] bfa: Make changes to FCXP resource management.Krishna Gudipati2012-09-241-18/+24
| | | | | | | | | - 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>
* [SCSI] bfa: FCS remote port enhancements.Krishna Gudipati2012-09-241-0/+3
| | | | | | | | | | | | - 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>
* [SCSI] bfa: BSG and User interface fixes.Krishna Gudipati2012-03-281-1/+4
| | | | | | | | | | | | | 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>
* [SCSI] bfa: Add FC-transport based Asynchronous Event Notification support.Krishna Gudipati2011-07-271-3/+46
| | | | | | | | - 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>
* [SCSI] bfa: Extend BSG interface.Krishna Gudipati2011-06-291-1/+39
| | | | | | | | - 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>
* [SCSI] bfa: FCS bug fixes.Krishna Gudipati2011-06-291-6/+39
| | | | | | | | | | | | | | | | | | | | | | - Added logic to initiate a PLOGI to the target, while processing a LOGO from the same target in Direct attach mode. - Added logic to generate a FCCT Reject indicating unsupported command, upon receiving FCCT/FCGS requests. - Added logic to set the fcpim in offline state and avoid any PRLI retries if a PRLI response is a reject with a reason Command Not Supported. - Updated the FDMI Supported/Current speeds. - Added logic to wait for the response from the firmware before sending ACC to PLOGI and transitioning to subsequent states - while processing an Incoming PLOGI in online state. - Added a wait state in the fcs_vport state machine - For case where FDISC is in progress and we get a vport delete request we wait for fdisc response and will transition to the appropriate state based on rsp status, else its causing both driver/fw resources to be not freed. - Remove the fc_credit_recovery module param. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] bfa: FC credit recovery and misc bug fixes.Krishna Gudipati2011-06-291-33/+5
| | | | | | | | | | | | | | | | - Introduce FC credit recovery. - Added module parameter to enable/disable credit recovery. Bug Fixes: - Removed check for ignoring plogi from initiator in switched fabric mode. - The ABTS for PLOGI is going out few millisecs earlier due to FW timer calibration (around 300 miilisecs earlier). So there is a window if an accept comes during this time HBA would have initiated an ABORT. - Added 1 to FC_ELS_TOV for compensating for FW timer. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* [SCSI] bfa: replace bfa_assert with WARN_ONJing Huang2010-12-311-2/+2
| | | | | Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: remove unused functions and misc cleanupsMaggie Zhang2010-12-211-1/+2
| | | | | | | | | Remove unused functions and fix checkpatch errors. Misc cleanups in comment and formatting. Signed-off-by: Maggie Zhang <xmzhang@brocade.com> Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: remove all OS wrappersMaggie Zhang2010-12-211-1/+1
| | | | | | | | Remove OS wrapper functions/macros, and as a result remove bfa_os_inc.h. Signed-off-by: Maggie Zhang <xmzhang@brocade.com> Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: clean up one line functionsMaggie Zhang2010-12-211-85/+12
| | | | | | | | Cleaned up one line functions. Signed-off-by: Maggie Zhang <xmzhang@brocade.com> Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: remove unused and empty functionsMaggie Zhang2010-12-211-116/+0
| | | | | | | | Removed unused and empty functions. Signed-off-by: Maggie Zhang <xmzhang@brocade.com> Signed-off-by: Jing Huang <xmzhang@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: fix endianess sparse check warningsMaggie2010-12-211-1/+1
| | | | | | | First round of fix for the endianess check warnings from make C=2 CF="-D__CHECK_ENDIAN__". Signed-off-by: Maggie <xmzhang@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: fix regular sparse check warnings.Maggie2010-12-211-8/+0
| | | | | | | Fix all sparse check warnings from make C=2. Signed-off-by: Maggie <xmzhang@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: rename log_level to bfa_log_levelJing Huang2010-12-201-3/+3
| | | | | | | | | Rename log_level to bfa_log_level to make the global variable more bfa specific and avoid clashes with other drivers which was causing a build failure. Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: fix comments for c filesJing Huang2010-10-251-85/+85
| | | | | | | | | | This patch addresses the comments from Randy Dunlap (Randy.Dunlap@oracle.com) regarding comment blocks that begining with "/**". bfa driver comments currently do not follow kernel-doc convention, we hence replace all /** with /* and **/ with */. Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: replace endian swap macros with the ones provided by linuxJing Huang2010-10-251-12/+12
| | | | | Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: remove os wrapper and unused functionsJing Huang2010-10-251-2/+2
| | | | | | | | | | | This patch removes os wrapper and unused functions. bfa_os_assign(), bfa_os_memset(), bfa_os_memcpy(), bfa_os_udelay() bfa_os_vsprintf(), bfa_os_snprintf(), and bfa_os_get_clock() are replaced with direct assignment or native linux functions. Some unused functions related to VF (Vitual fabric) are also removed. Signed-off-by: Jing Huang <huangj@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* [SCSI] bfa: cleanup driverKrishna Gudipati2010-09-161-0/+3126
We have flattened the BFA hierarchy and also reduced the number of source and header files we used to have earlier. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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