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path: root/drivers/scsi/lpfc/lpfc_els.c
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2017-08-24scsi: lpfc: Add Buffer to Buffer credit recovery supportJames Smart
Add Buffer to buffer credit recovery support to the driver. This is a negotiated feature with the peer that allows for both sides to detect dropped RRDY's and FC Frames and recover credit. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24scsi: lpfc: Correct issues with FAWWN and FDISCsDick Kennedy
When using fabric-assigned WWNs, the switch doesn't like copy of the FLOGI payload, which includes valid VVL bits, to be used as the FDISC payload. Rather than wait for corrected switch firmware, ensure the VVL bits are marked invalid on FDISCs. [mkp: typo] 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>
2017-08-24scsi: lpfc: Fix NVME PRLI handling during RSCNDick Kennedy
A race condition was found whereby the initiator would receive the RSCN for a new NVME device before it had a chance to register its FC4 support with the fabric. Thus, when queried by the initiator, it would see that the target supported FC-NVME. Corrected by making the assumption that the target always supports FC-NVME thus a PRLI is sent. It's ok for the target to reject it. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24scsi: lpfc: Fix duplicate NVME rport entries and namespaces.Dick Kennedy
After lip, the driver sometimes would have two rports for the same device, allowing the namespaces to be duplicated by nvme. In lpfc_plogi_confirm_nport() the driver was not swapping the nrport maintained by the ndlp's undergoing address swapping. This allowed the 2nd rport to sneak in as it was considered a separate device. This patch adds the fixes to Swap the nrport in each ndlp and take care of the reference counts on the ndlps similar to FCP rports. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24scsi: lpfc: Fix handling of FCP and NVME FC4 types in Pt2Pt topologyDick Kennedy
After link bounce in a NVME Pt2Pt config, the driver managed to map the same nport twice, resulting in multiple device nodes for the same namespace. In Pt2Pt, the driver must send PRLI's for both (scsi) FCP and NVME rather than using fabric aids. The driver was inconsistent on handling various PRLI completions, especially rejects, which had reject codes cross the different protocol PRLI completions. Fixed to perform the following: if nvmet mode (fc port can only be a nvme target) - rejects all unsolicitly FCP PRLI's. Never issues a FCP PRLI. The multiple protocol PRLI's are sent simultaneously. However, driver will now only state transition after both PRLI's are complete. New flags were added to aid tracking the responses from the different PRLI's. 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>
2017-08-24scsi: lpfc: Fix plogi collision that causes illegal state transitionDick Kennedy
Message "0271 Illegal State Transition: node" seen in logs, all luns are unuseable for that target. A window exists in the rcv_plogi path where if the state is plogi issue but the driver has not issued a plogi, then two reglogins will be sent for the same RPI. The first one to complete will advance the state to prli issue the second one will be detected as an illegal state, and leave the node in an unusable state. Correct the completion routine for the PLOGI ACC that detects the state change when the driver starts discovery on the node again and drop the REGLOGIN mailbox command. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-19scsi: lpfc: Driver responds LS_RJT to Beacon Off ELS - LinuxJames Smart
Beacon OFF from switch is rejected by driver. Driver fails Beacon OFF if frequency is set to 0. As per fc-ls spec, status, capability, frequency and duration fields are only applicable for Beacon ON. Remove frequency and type checks. Reject Beacon ON if duration is non zero. 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>
2017-06-19scsi: lpfc: Fix SLI3 drivers attempting NVME ELS commands.James Smart
In a server with an 8G adapter and a 32G adapter, running NVME and FCP, the server would crash with the following stack. RIP: 0010: ... lpfc_nvme_register_port+0x38/0x420 [lpfc] lpfc_nlp_state_cleanup+0x154/0x4f0 [lpfc] lpfc_nlp_set_state+0x9d/0x1a0 [lpfc] lpfc_cmpl_prli_prli_issue+0x35f/0x440 [lpfc] lpfc_disc_state_machine+0x78/0x1c0 [lpfc] lpfc_cmpl_els_prli+0x17c/0x1f0 [lpfc] lpfc_sli_sp_handle_rspiocb+0x39b/0x6b0 [lpfc] lpfc_sli_handle_slow_ring_event_s3+0x134/0x2d0 [lpfc] lpfc_work_done+0x8ac/0x13b0 [lpfc] lpfc_do_work+0xf1/0x1b0 [lpfc] Crash, on the 8G adapter, is due to a vport which does not have a nvme local port structure. It's not supposed to have one. NVME is not supported on the 8G adapter, so the NVME PRLI, which started this flow shouldn't have been sent in the first place. Correct discovery engine to recognize when on an SLI3 rport, which doesn't support SLI3, if the rport supports only NVME, don't send a NVME PRLI. Instead, as no FC4 will be used, a LOGO is sent. If rport is FCP and NVME, only execute the SCSI PRLI. 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>
2017-06-12scsi: lpfc: Fix PRLI retry handling when target rejects it.James Smart
The nvmet driver was rejecting the initiator's PRLI because its reg_rpi for the PLOGI was still outstanding. The initiator would resend the PRLI without delay and get the same answer. The PRLI retries would exhaust causing the nvme initiator to set the nvmet ndlp to UNMAPPED. The driver's lpfc_els_retry handler did not have a policy for an LS_RJT with explanation CMD_IN_PROGRESS for PRLI or NVME_PRLI. This caused the delay to remain at 0 but retry set 1. Fix: When the ELS response is LS_RJT, TPC and the command was PRLI or NVME_PRLI, just set the delay to 1000 mS to get a 1 second delay on the PRLI retry. This was enough to allow the REG_RPI to complete at the target. 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>
2017-05-17scsi: lpfc: Fix NULL pointer dereference during PCI error recoveryGuilherme G. Piccoli
Recent commit on patchset "lpfc updates for 11.2.0.14" fixed an issue about dereferencing a NULL pointer on port reset. The specific commit, named "lpfc: Fix system crash when port is reset.", is missing a check against NULL pointer on lpfc_els_flush_cmd() though. Since we destroy the queues on adapter resets, like in PCI error recovery path, we need the validation present on this patch in order to avoid a NULL pointer dereference when trying to flush commands of ELS wq, after it has been destroyed (which would lead to a kernel oops). Tested-by: Raphael Silva <raphasil@linux.vnet.ibm.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Acked-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-05-16scsi: lpfc: Add MDS Diagnostic support.James Smart
Added code to support Cisco MDS loopback diagnostic. The diagnostics run various loopbacks including one which loops-back frame through the driver. 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>
2017-05-16scsi: lpfc: Fix NVMEI driver not decrementing counter causing bad rport state.James Smart
During driver boot, a latency in the NVMET driver side causes the incoming NVMEI PRLI to get rejected by the NVMET driver. When this happens, the NVMEI driver runs out of PRLI retries. Bouncing the link does not fix the situation. If the NVMEI driver decides, on PRLI completion failures, to retry the PRLI, always decrement the fc4_prli_sent counter. This allows the PRLI completion to resolve to UNMAPPED when NVMET rejects the PRLI. 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>
2017-05-16scsi: lpfc: Fix used-RPI accounting problem.James Smart
With 255 vports created a link trasition can casue a crash. When going through discovery after a link bounce the driver is using rpis before the cmd FCOE_POST_HDR_TEMPLATES completes. By doing that the next rpi bumps the rpi range out of the boundary. The fix it to increment the next_rpi only when the FCOE_POST_HDR_TEMPLATE succeeds. 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>
2017-04-27Merge branch 'nvme-4.12' of git://git.infradead.org/nvme into ↵Jens Axboe
for-4.12/post-merge Christoph writes: "A couple more updates for 4.12. The biggest pile is fc and lpfc updates from James, but there are various small fixes and cleanups as well." Fixes up a few merge issues, and also a warning in lpfc_nvmet_rcv_unsol_abort() if CONFIG_NVME_TARGET_FC isn't enabled. Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-24Fix implicit logo and RSCN handling for NVMETJames Smart
NVMET didn't have any RSCN handling at all and would not execute implicit LOGO when receiving a PLOGI from an rport that NVMET had in state UNMAPPED. Clean up the logic in lpfc_nlp_state_cleanup for initiators (FCP and NVME). NVMET should not respond to RSCN including allocating new ndlps so this code was conditionalized when nvmet_support is true. The check for NLP_RCV_PLOGI in lpfc_setup_disc_node was moved below the check for nvmet_support to allow the NVMET to recover initiator nodes correctly. The implicit logo was introduced with lpfc_rcv_plogi when NVMET gets a PLOGI on an ndlp in UNMAPPED state. The RSCN handling was modified to not respond to an RSCN in NVMET. Instead NVMET sends a GID_FT and determines if an NVMEP_INITIATOR it has is UNMAPPED but no longer in the zone membership. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-04-24Add Fabric assigned WWN support.James Smart
Adding support for Fabric assigned WWPN and WWNN. Firmware sends first FLOGI to fabric with vendor version changes. On link up driver gets updated service parameter with FAWWN assigned port name. Driver sends 2nd FLOGI with updated fawwpn and modifies the vport->fc_portname in driver. Note: Soft wwpn will not be allowed when fawwpn is enabled. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-04-24Fix crash after issuing lip resetJames Smart
When RPI is not available, driver sends WQE with invalid RPI value and rejected by HBA. lpfc 0000:82:00.3: 1:3154 BLS ABORT RSP failed, data: x3/xa0320008 and lpfc :2753 PLOGI failure DID:FFFFFA Status:x3/xa0240008 In this case, driver accesses rpi_ids array out of bounds. Fix: Check return value of lpfc_sli4_alloc_rpi(). Do not allocate lpfc_nodelist entry if RPI is not available. When RPI is not available, we will get discovery timeouts and command drops for some of the vports as seen below. lpfc :0273 Unexpected discovery timeout, vport State x0 lpfc :0230 Unexpected timeout, hba link state x5 lpfc :0111 Dropping received ELS cmd Data: x0 xc90c55 x0 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-04-24Fix PRLI ACC rsp for NVMEJames Smart
PRLI ACC from target is FCP oriented. Word 0 was wrong. This was noticed by another nvmet-fc vendor that was testing the lpfc nvme-fc initiator with their target. Verified results with analyzer. PRLI BC B5 56 56 22 61 04 00 00 61 00 00 01 29 00 00 20 00 00 00 00 10 FF FF 00 00 00 00 20 14 00 18 28 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 00 9C D8 DA C9 BC 95 75 75 ACC BC B5 56 56 23 61 00 00 00 61 04 00 01 98 00 00 30 00 00 00 00 10 00 18 00 00 00 00 02 14 00 18 28 00 01 00 00 00 00 00 00 00 00 00 00 00 00 18 00 00 00 00 B0 6B 07 57 BC B5 75 75 Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
2017-03-23scsi: lpfc: Fix PT2PT PRLI rejectDick Kennedy
lpfc cannot establish connection with targets that send PRLI in P2P configurations. If lpfc rejects a PRLI that is sent from a target the target will not resend and will reject the PRLI send from the initiator. [mkp: applied by hand] 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>
2017-03-06scsi: lpfc: correct rdp diag portnamesJames Smart
NVME merge reverted diag port names to the physical port. They should be the vport. 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>
2017-03-06scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adaptersJames Smart
if REG_VPI fails, the driver was incorrectly issuing INIT_VFI (a SLI4 command) on a SLI3 adapter. 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>
2017-02-22scsi: lpfc: Update copyrightsJames Smart
Update copyrights to 2017 for all files touched in this patch set Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-22scsi: lpfc: NVME Target: bind to nvmet_fc apiJames Smart
NVME Target: Tie in to NVME Fabrics nvmet_fc LLDD target api Adds the routines to: - register and deregister the FC port as a nvmet-fc targetport - binding of nvme queues to adapter WQs - receipt and passing of NVME LS's to transport, sending transport response - receipt of NVME FCP CMD IUs, processing FCP target io data transmission commands; transmission of FCP io response - Abort operations for tgt io exchanges [mkp: fixed space at end of file warning] 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>
2017-02-22scsi: lpfc: NVME Target: Merge into FC discoveryJames Smart
NVME Target: Merge into FC discovery Adds NVME PRLI handling and Nameserver registrations for NVME 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>
2017-02-22scsi: lpfc: NVME Initiator: bind to nvme_fc apiJames Smart
NVME Initiator: Tie in to NVME Fabrics nvme_fc LLDD initiator api Adds the routines to: - register and deregister the FC port as a nvme-fc initiator localport - register and deregister remote FC ports as a nvme-fc remoteport - binding of nvme queues to adapter WQs - send/perform NVME LS's - send/perform NVME FCP initiator io operations 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>
2017-02-22scsi: lpfc: NVME Initiator: Merge into FC discoveryJames Smart
NVME Initiator: Merge into FC discovery Adds NVME PRLI support and Nameserver registrations and Queries for NVME 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>
2017-02-22scsi: lpfc: NVME Initiator: Base modificationsJames Smart
NVME Initiator: Base modifications This patch adds base modifications for NVME initiator support. The base modifications consist of: - Formal split of SLI3 rings from SLI-4 WQs (sometimes referred to as rings as well) as implementation now widely varies between the two. - Addition of configuration modes: SCSI initiator only; NVME initiator only; NVME target only; and SCSI and NVME initiator. The configuration mode drives overall adapter configuration, offloads enabled, and resource splits. NVME support is only available on SLI-4 devices and newer fw. - Implements the following based on configuration mode: - Exchange resources are split by protocol; Obviously, if only 1 mode, then no split occurs. Default is 50/50. module attribute allows tuning. - Pools and config parameters are separated per-protocol - Each protocol has it's own set of queues, but share interrupt vectors. SCSI: SLI3 devices have few queues and the original style of queue allocation remains. SLI4 devices piggy back on an "io-channel" concept that eventually needs to merge with scsi-mq/blk-mq support (it is underway). For now, the paradigm continues as it existed prior. io channel allocates N msix and N WQs (N=4 default) and either round robins or uses cpu # modulo N for scheduling. A bunch of module parameters allow the configuration to be tuned. NVME (initiator): Allocates an msix per cpu (or whatever pci_alloc_irq_vectors gets) Allocates a WQ per cpu, and maps the WQs to msix on a WQ # modulo msix vector count basis. Module parameters exist to cap/control the config if desired. - Each protocol has its own buffer and dma pools. I apologize for the size of the patch. 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>
2017-02-21Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This update includes the usual round of major driver updates (ncr5380, ufs, lpfc, be2iscsi, hisi_sas, storvsc, cxlflash, aacraid, megaraid_sas, ...). There's also an assortment of minor fixes and the major update of switching a bunch of drivers to pci_alloc_irq_vectors from Christoph" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (188 commits) scsi: megaraid_sas: handle dma_addr_t right on 32-bit scsi: megaraid_sas: array overflow in megasas_dump_frame() scsi: snic: switch to pci_irq_alloc_vectors scsi: megaraid_sas: driver version upgrade scsi: megaraid_sas: Change RAID_1_10_RMW_CMDS to RAID_1_PEER_CMDS and set value to 2 scsi: megaraid_sas: Indentation and smatch warning fixes scsi: megaraid_sas: Cleanup VD_EXT_DEBUG and SPAN_DEBUG related debug prints scsi: megaraid_sas: Increase internal command pool scsi: megaraid_sas: Use synchronize_irq to wait for IRQs to complete scsi: megaraid_sas: Bail out the driver load if ld_list_query fails scsi: megaraid_sas: Change build_mpt_mfi_pass_thru to return void scsi: megaraid_sas: During OCR, if get_ctrl_info fails do not continue with OCR scsi: megaraid_sas: Do not set fp_possible if TM capable for non-RW syspdIO, change fp_possible to bool scsi: megaraid_sas: Remove unused pd_index from megasas_build_ld_nonrw_fusion scsi: megaraid_sas: megasas_return_cmd does not memset IO frame to zero scsi: megaraid_sas: max_fw_cmds are decremented twice, remove duplicate scsi: megaraid_sas: update can_queue only if the new value is less scsi: megaraid_sas: Change max_cmd from u32 to u16 in all functions scsi: megaraid_sas: set pd_after_lb from MR_BuildRaidContext and initialize pDevHandle to MR_DEVHANDLE_INVALID scsi: megaraid_sas: latest controller OCR capability from FW before sending shutdown DCMD ...
2017-02-20Merge branch 'locking-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The main changes in this cycle were: - Implement wraparound-safe refcount_t and kref_t types based on generic atomic primitives (Peter Zijlstra) - Improve and fix the ww_mutex code (Nicolai Hähnle) - Add self-tests to the ww_mutex code (Chris Wilson) - Optimize percpu-rwsems with the 'rcuwait' mechanism (Davidlohr Bueso) - Micro-optimize the current-task logic all around the core kernel (Davidlohr Bueso) - Tidy up after recent optimizations: remove stale code and APIs, clean up the code (Waiman Long) - ... plus misc fixes, updates and cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits) fork: Fix task_struct alignment locking/spinlock/debug: Remove spinlock lockup detection code lockdep: Fix incorrect condition to print bug msgs for MAX_LOCKDEP_CHAIN_HLOCKS lkdtm: Convert to refcount_t testing kref: Implement 'struct kref' using refcount_t refcount_t: Introduce a special purpose refcount type sched/wake_q: Clarify queue reinit comment sched/wait, rcuwait: Fix typo in comment locking/mutex: Fix lockdep_assert_held() fail locking/rtmutex: Flip unlikely() branch to likely() in __rt_mutex_slowlock() locking/rwsem: Reinit wake_q after use locking/rwsem: Remove unnecessary atomic_long_t casts jump_labels: Move header guard #endif down where it belongs locking/atomic, kref: Implement kref_put_lock() locking/ww_mutex: Turn off __must_check for now locking/atomic, kref: Avoid more abuse locking/atomic, kref: Use kref_get_unless_zero() more locking/atomic, kref: Kill kref_sub() locking/atomic, kref: Add kref_read() locking/atomic, kref: Add KREF_INIT() ...
2017-01-20scsi: lpfc: Replace BUG() with BUG_ON()Shyam Saini
Replace BUG() with BUG_ON() using coccinelle. Signed-off-by: Shyam Saini <mayhs11saini@gmail.com> Acked-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-17scsi: lpfc: Set elsiocb contexts to NULL after freeing itJohannes Thumshirn
Set the elsiocb contexts to NULL after freeing as others depend on it. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-14locking/atomic, kref: Add kref_read()Peter Zijlstra
Since we need to change the implementation, stop exposing internals. Provide kref_read() to read the current reference count; typically used for debug messages. Kills two anti-patterns: atomic_read(&kref->refcount) kref->refcount.counter Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-05scsi: lpfc: Clear the VendorVersion in the PLOGI/PLOGI ACC payloadJames Smart
Clear the VendorVersion in the PLOGI/PLOGI ACC payload Vendor version info may have been set on fabric login. Before sending PLOGI payloads, ensure that it's cleared. 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>
2016-11-08scsi: lpfc: Fix lost target in pt-to-pt connectJames Smart
Fix lost target in pt-to-pt connect Change reject code to something that allows a retry Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26scsi: lpfc: Mark symbols static where possibleBaoyou Xie
We get a few warnings when building kernel with W=1: drivers/scsi/lpfc/lpfc_sli.c:5693:1: warning: no previous prototype for 'lpfc_set_features' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_sli.c:8972:1: warning: no previous prototype for 'lpfc_sli_calc_ring' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4621:1: warning: no previous prototype for 'lpfc_rdp_res_link_service' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4633:1: warning: no previous prototype for 'lpfc_rdp_res_sfp_desc' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4698:1: warning: no previous prototype for 'lpfc_rdp_res_link_error' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4727:1: warning: no previous prototype for 'lpfc_rdp_res_bbc_desc' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4752:1: warning: no previous prototype for 'lpfc_rdp_res_oed_temp_desc' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4780:1: warning: no previous prototype for 'lpfc_rdp_res_oed_voltage_desc' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4809:1: warning: no previous prototype for 'lpfc_rdp_res_oed_txbias_desc' [-Wmissing-prototypes] drivers/scsi/lpfc/lpfc_els.c:4838:1: warning: no previous prototype for 'lpfc_rdp_res_oed_txpower_desc' [-Wmissing-prototypes] .... In fact, these functions are only used in the file in which they are declared and don't need a declaration, but can be made static. So this patch marks these functions with 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-07-15lpfc: Remove global lpfc_delay_discovery attribute in leiu of per-hba ↵James Smart
lpfc_delay_discovery Remove global lpfc_delay_discovery attribute in leiu of per-hba lpfc_delay_discovery 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>
2016-07-15lpfc: Add MDS Diagnostics SupportJames Smart
Add MDS Diagnostics 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>
2016-07-15lpfc: Reject RDP ELS if port has no loginJames Smart
Reject RDP ELS if port has no login 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>
2016-07-15lpfc: Correct Buffer credit descriptor values in RDP responseJames Smart
Correct Buffer credit descriptor values in RDP response 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>
2016-07-15lpfc: Correct RDP response sizing issueJames Smart
Correct RDP response sizing issue 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>
2016-07-15lpfc: Fix Transgression Flag of Optical Element descriptor for RDP on LinuxJames Smart
Fix Transgression Flag of Optical Element descriptor for RDP on Linux 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>
2016-04-11lpfc: Update modified file copyrightsJames Smart
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-11lpfc: Fix interaction between fdmi_on and enable_SmartSANJames Smart
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-11lpfc: Add support for SmartSAN 2.0James Smart
Revise versions to reflect SmartSAN 2.0 support RDP updated to support additional descriptors: Credit descriptor Optical Element Data descriptors for Temperature, Voltage, Bias current, TX power and TX power. Optical Product Data descriptor. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-04-11lpfc: Fix Device discovery failures during switch reboot test.James Smart
When the switch is rebooted, the lpfc driver fails to log into the fabric, and Unexpected timeout message is seen. Fix: Do not issue RegVFI if the FLOGI was internally aborted. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Use kzalloc instead of kmallocPunit Vara
This patch is to the lpfc_els.c which resolves following warning reported by coccicheck: WARNING: kzalloc should be used for rdp_context, instead of kmalloc/memset Signed-off-by: Punit Vara <punitvara@gmail.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Reviewed-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Use new FDMI speed definitions for 10G, 25G and 40G FCoE.James Smart
Use new FDMI speed definitions for 10G, 25G and 40G FCoE. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix RDP ACC being too long.James Smart
Fix RDP ACC being too long. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Fix RDP Speed reporting.James Smart
Fix RDP Speed reporting. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2015-12-21lpfc: Modularize and cleanup FDMI code in driverJames Smart
Modularize, cleanup, add comments - for FDMI code in driver Note: I don't like the comments with leading # - but as we have a lot if present, I'm deferring to handle it in one big fix later. Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com> Signed-off-by: James Smart <james.smart@avagotech.com> Reviewed-by: Hannes Reinicke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>