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path: root/drivers/scsi/lpfc/lpfc_ct.c
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2024-09-12scsi: lpfc: Revise TRACE_EVENT log flag severities from KERN_ERR to KERN_WARNINGJustin Tee1-5/+5
Revise certain log messages marked as KERN_ERR LOG_TRACE_EVENT to KERN_WARNING and use the lpfc_vlog_msg() macro to still log the event. The benefit is that events of interest are still logged and the entire trace buffer is not dumped with extraneous logging information when using default lpfc_log_verbose driver parameter settings. Also, delete the keyword "fail" from such log messages as they aren't really causes for concern. The log messages are more for warnings to a SAN admin about SAN activity. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240912232447.45607-7-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-09-12scsi: lpfc: Ensure DA_ID handling completion before deleting an NPIV instanceJustin Tee1-0/+12
Deleting an NPIV instance requires all fabric ndlps to be released before an NPIV's resources can be torn down. Failure to release fabric ndlps beforehand opens kref imbalance race conditions. Fix by forcing the DA_ID to complete synchronously with usage of wait_queue. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240912232447.45607-6-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-07-04scsi: lpfc: Relax PRLI issue conditions after GID_FT responseJustin Tee1-12/+4
If previously in REG_LOGIN_ISSUE state, then remove the requirement that PLOGI must have been received from the remote port before issuing a PRLI. After GID_FT completes, it does not matter whether the driver itself sent a PLOGI or received one. The fact that we're in REG_LOGIN_ISSUE state simply means that the next state should be issuing the PRLI to continue discovery of the remote port. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240628172011.25921-4-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-05-06scsi: lpfc: Change lpfc_hba hba_flag member into a bitmaskJustin Tee1-4/+4
In attempt to reduce the amount of unnecessary phba->hbalock acquisitions in the lpfc driver, change hba_flag into an unsigned long bitmask and use clear_bit/test_bit bitwise atomic APIs instead of reliance on phba->hbalock for synchronization. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240429221547.6842-6-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-05-06scsi: lpfc: Change default logging level for unsolicited CT MIB commandsJustin Tee1-8/+8
For diagnostic purposes, it is convenient to automatically log unexpected CT MIB events without the need to set lpfc_log_verbose flags. So, change lpfc_ct_handle_mibreq's logging level from KERN_INFO to KERN_WARNING. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240429221547.6842-2-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-26scsi: lpfc: Replace deprecated strncpy() with strscpy()Justin Stitt1-2/+2
strncpy() is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect ae->value_string to be NUL-terminated because there's a comment that says as much; these attr strings are also used with other string APIs, further cementing the fact. Now, the question of whether or not to NUL-pad the destination buffer: lpfc_fdmi_rprt_defer() initializes vports (all zero-initialized), then we call lpfc_fdmi_cmd() with each vport and a mask. Then, inside of lpfc_fdmi_cmd() we check each bit in the mask to invoke the proper callback. Importantly, the zero-initialized vport is passed in as the "attr" parameter. Seeing this: | struct lpfc_fdmi_attr_string *ae = attr; ... we can tell that ae->value_string is entirely zero-initialized. Due to this, NUL-padding is _not_ required as it would be redundant. Considering the above, a suitable replacement is strscpy() [2]. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by: Justin Stitt <justinstitt@google.com> Link: https://lore.kernel.org/r/20240226-strncpy-drivers-scsi-lpfc-lpfc_ct-c-v2-1-2df2e46569b9@google.com Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-05scsi: lpfc: Copyright updates for 14.4.0.0 patchesJustin Tee1-1/+1
Update copyrights to 2024 for files modified in the 14.4.0.0 patch set. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240131185112.149731-18-justintee8345@gmail.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-05scsi: lpfc: Change lpfc_vport load_flag member into a bitmaskJustin Tee1-5/+6
In attempt to reduce the amount of unnecessary shost_lock acquisitions in the lpfc driver, change load_flag into an unsigned long bitmask and use clear_bit/test_bit bitwise atomic APIs instead of reliance on shost_lock for synchronization. Also, correct the test for FC_UNLOADING in lpfc_ct_handle_mibreq, which incorrectly tests vport->fc_flag rather than vport->load_flag. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240131185112.149731-16-justintee8345@gmail.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-05scsi: lpfc: Change lpfc_vport fc_flag member into a bitmaskJustin Tee1-77/+55
In attempt to reduce the amount of unnecessary shost_lock acquisitions in the lpfc driver, change fc_flag into an unsigned long bitmask and use clear_bit/test_bit bitwise atomic APIs instead of reliance on shost_lock for synchronization. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240131185112.149731-15-justintee8345@gmail.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-05scsi: lpfc: Protect vport fc_nodes list with an explicit spin lockJustin Tee1-4/+3
In attempt to reduce the amount of unnecessary shost_lock acquisitions in the lpfc driver, replace shost_lock with an explicit fc_nodes_list_lock spinlock when accessing vport->fc_nodes lists. Although vport memory region is owned by shost->hostdata, it is driver private memory and an explicit fc_nodes list lock for fc_nodes list mutations is more appropriate than locking the entire shost. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240131185112.149731-14-justintee8345@gmail.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-05scsi: lpfc: Fix failure to delete vports when discovery is in progressJustin Tee1-4/+4
Requests to delete an NPIV port may fail repeatedly if the initial request is received during discovery. If the FC_UNLOADING load_flag is set, then skip CT response processing for the physical port. This allows discovery processing for other lpfc_vport objects to reach their cmpl routines before deleting the vport. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20240131185112.149731-8-justintee8345@gmail.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-07-23scsi: lpfc: Make fabric zone discovery more robust when handling unsolicited ↵Justin Tee1-6/+14
LOGO This patch provides better target rport recovery when a target rport is running in initiator mode to discover the fabric. Such a target will issue a LOGO before switching back to strict target mode and changes are made to recover the login. Log messages are also updated accordingly. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230712180522.112722-8-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-06-07scsi: lpfc: Use struct_size() helperJustin Tee1-4/+2
Prefer struct_size() over open-coded versions of idiom: sizeof(struct-with-flex-array) + sizeof(typeof-flex-array-elements) * count where count is the max number of items the flexible array is supposed to contain. Link: https://github.com/KSPP/linux/issues/160 Co-developed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Co-developed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230531223319.24328-1-justintee8345@gmail.com Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-05-31scsi: lpfc: Fix incorrect big endian type assignments in FDMI and VMID pathsJustin Tee1-44/+44
The kernel test robot reported sparse warnings regarding the improper usage of beXX_to_cpu() macros. Change the flagged FDMI and VMID member variables to __beXX and redo the beXX_to_cpu() macros appropriately. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230530191405.21580-1-justintee8345@gmail.com Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202305261159.lTW5NYrv-lkp@intel.com/ Closes: https://lore.kernel.org/oe-kbuild-all/202305260751.NWFvhLY5-lkp@intel.com/ Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-05-22scsi: lpfc: Replace one-element array with flexible-array memberGustavo A. R. Silva1-2/+4
One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element arrays with flexible-array members in a couple of structures, and refactor the rest of the code, accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. This results in no differences in binary output. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/295 Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1] Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/6c6dcab88524c14c47fd06b9332bd96162656db5.1684358315.git.gustavoars@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-09scsi: lpfc: Copyright updates for 14.2.0.11 patchesJustin Tee1-1/+1
Update copyrights to 2023 for files modified in the 14.2.0.11 patch set. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230301231626.9621-11-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-09scsi: lpfc: Revise lpfc_error_lost_link() reason code evaluation logicJustin Tee1-2/+2
Extended status reason code errors should mask off the IOERR_PARAM_MASK before checking strict equalities for IOERR values. Update the lpfc_error_lost_link() routine as such. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230301231626.9621-9-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-09scsi: lpfc: Reorder freeing of various DMA buffers and their list removalJustin Tee1-1/+1
Code sections where DMA resources are freed before list removal are reworked to ensure item removal before being freed. Signed-off-by: Justin Tee <justin.tee@broadcom.com> Link: https://lore.kernel.org/r/20230301231626.9621-3-justintee8345@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-01scsi: lpfc: Fix spelling mistake "unsolicted" -> "unsolicited"Colin Ian King1-1/+1
There are spelling mistakes in a log message and two comments. Fix them. Link: https://lore.kernel.org/r/20220928222116.68294-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15scsi: lpfc: Rework FDMI attribute registration for unintential paddingJames Smart1-653/+308
Removed the lpfc_fdmi_attr_entry and lpfc_fdmi_attr_def structures that had a union causing unintentional zero padding, which required the usage of __packed. They are replaced with explicit lpfc_fdmi_attr_u32, lpfc_fdmi_attr_wwn, lpfc_fdmi_attr_fc4types, and lpfc_fdmi_attr_string structure defines instead of living in a union. This rids of ambiguous compiler zero padding, and entailed cleaning up bitwise endian declarations. As such, all FDMI attribute registration routines are replaced with generic void *arg and handlers for each of the newly defined attribute structure types. Link: https://lore.kernel.org/r/20220911221505.117655-11-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15scsi: lpfc: Rework lpfc_fdmi_cmd() routine for cleanup and consistencyJames Smart1-23/+30
Switch case logics are reworked so they appear more similar and consistent. This eliminates compiler errors indicating unaligned pointer values and packed members. Added comments to explain previous size offset accumulations. Link: https://lore.kernel.org/r/20220911221505.117655-10-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15scsi: lpfc: Rename mp/bmp dma buffers to rq/rsp in lpfc_fdmi_cmdJames Smart1-31/+32
Clarify naming of the mp/bmp dma buffers: - Rename mp to rq as it is the request buffer - Rename bmp to rsp as it is the response buffer This reduces confusion about what the buffer content is based on their name. Link: https://lore.kernel.org/r/20220911221505.117655-9-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15scsi: lpfc: Add missing free iocb and nlp kref put for early return VMID casesJames Smart1-3/+7
Sometimes VMID targets are not getting rediscovered after a port reset. The iocb is not freed in lpfc_cmpl_ct_cmd_vmid(), which is the completion function for the appid CT commands. So after a port reset, the count of sges is less than the expected count of 250. This causes post reset operation logic to fail and keep the port offline. Fix by freeing the iocb and kref put for the lpfc_cmpl_ct_cmd_vmid() early return cases. Link: https://lore.kernel.org/r/20220911221505.117655-5-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31scsi: lpfc: Fix null ndlp ptr dereference in abnormal exit path for GFT_IDJames Smart1-5/+2
An error case exit from lpfc_cmpl_ct_cmd_gft_id() results in a call to lpfc_nlp_put() with a null pointer to a nodelist structure. Changed lpfc_cmpl_ct_cmd_gft_id() to initialize nodelist pointer upon entry. Link: https://lore.kernel.org/r/20220819011736.14141-3-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-07scsi: lpfc: Correct BDE type for XMIT_SEQ64_WQE in lpfc_ct_reject_event()James Smart1-1/+1
A previous commit assumed all XMIT_SEQ64_WQEs are prepped with the correct BDE type in word 0-2. However, lpfc_ct_reject_event() routine was missed and is still filling out the incorrect BDE type. Fix lpfc_ct_reject_event() routine so that type BUFF_TYPE_BDE_64 is set instead of BUFF_TYPE_BLP_64. Link: https://lore.kernel.org/r/20220603174329.63777-2-jsmart2021@gmail.com Fixes: 596fc8adb171 ("scsi: lpfc: Fix dmabuf ptr assignment in lpfc_ct_reject_event()") Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-10scsi: lpfc: Rework FDMI initialization after link upJames Smart1-7/+91
After a link up, it's possible for the switch to change FDMI support (e.g. FDMI1 vs FDMI2 vs SmartSAN). If the switch reverts to FDMI1, then the revert is currently not detected. Additionally, when NPIV is configured, it's possible the physical port's RHBA is unprocessed by the switch before reciept of an NPIV port issued RPRT. This causes some switches vendors to reject the NPIV's RPRT. Fix by reinitializing base FDMI mode on link up, and defer FDMI vport RPRT submission until after confirming physical port's RHBA is completed. Link: https://lore.kernel.org/r/20220506035519.50908-10-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-10scsi: lpfc: Decrement outstanding gidft_inp counter if lpfc_err_lost_link()James Smart1-2/+14
During large NPIV port testing, it was sometimes seen that not all vports would log back in to the target device. There are instances when the fabric is slow to respond to a spam of GID_PT requests and as a result the SLI PORT may abort the GID_PT request because the fabric takes so long. lpfc_cmpl_ct_cmd_gid_pt() would enter the lpfc_err_lost_link() logic and attempt to lpfc_els_flush_rscn(), which is fine, but forgets to decrement the gidft_inp counter. This results in a vport->gidft_inp never reaching 0 and never restarting discovery again. Decrement vport->gidft_inp if lpfc_err_lost_link() is true for both lpfc_cmpl_ct_cmd_gid_pt() and lpfc_cmpl_ct_cmd_gid_ft(). Increase logging info during RSCN timeout and lpfc_err_lost_link() events. Link: https://lore.kernel.org/r/20220506035519.50908-8-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18scsi: lpfc: Fix field overload in lpfc_iocbq data structureJames Smart1-75/+73
The lpfc_iocbq data structure has void * pointers that are overloaded to be as many as 8 different data types and the driver translates the void * by casting. This patch removes the void * pointers by declaring the specific types needed by the driver. It also expands the context_un to include more seldom used pointer types to save structure bytes. It also groups the u8 types together to pack the 8 bytes needed. This work allows the lpfc_iocbq data structure to be more strongly typed and keeps it from being allocated from the 512 byte slab. [mkp: rolled in zeroday fix] Link: https://lore.kernel.org/r/20220412222008.126521-21-jsmart2021@gmail.com Reported-by: kernel test robot <lkp@intel.com> Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18scsi: lpfc: Register for Application Services FC-4 type in Fabric topologyJames Smart1-12/+14
Add new FC-4 type 0x60 Application Services for fabric registration when VMID is enabled. Modified rft struture to indicate __be format. Removed redundant ipReg variable as it was not used. Link: https://lore.kernel.org/r/20220412222008.126521-19-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18scsi: lpfc: Remove false FDMI NVMe FC-4 support for NPIV portsJames Smart1-1/+3
FDMI FC-4 Active Type for vports mistakenly shows NVMe support. Add a check to only set the NVMe support bit for the physical port. Link: https://lore.kernel.org/r/20220412222008.126521-18-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18scsi: lpfc: Revise FDMI reporting of supported port speed for trunk groupsJames Smart1-20/+48
Trunk port FDMI supported port speed shows single port supported speed rather than the trunked port speed. Modify supported port speed logic calculation during registration. Link: https://lore.kernel.org/r/20220412222008.126521-17-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18scsi: lpfc: Tweak message log categories for ELS/FDMI/NVMe rescanJames Smart1-3/+3
Several log message categories were updated: - Enable msg 4623 (Xmit of ECD) to display for ELS logging. - Change msg 0220 (FDMI cmd failed) to display for ELS logging. - Change msg 6460 (FDMI RPA failure) to be warning not hard error. - Change msg 6172 (NVME rescan of DID) to be logged under NVMe discovery. Link: https://lore.kernel.org/r/20220412222008.126521-2-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: Copyright updates for 14.2.0.0 patchesJames Smart1-1/+1
Update copyrights to 2022 for files modified in the 14.2.0.0 patch set. Link: https://lore.kernel.org/r/20220225022308.16486-18-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: SLI path split: Refactor CT pathsJames Smart1-176/+157
This patch refactors the CT paths to use SLI-4 as the primary interface. - Introduce generic lpfc_sli_prep_gen_req jump table routine - Introduce generic lpfc_sli_prep_xmit_seq64 jump table routine - Rename lpfcdiag_loop_post_rxbufs to lpfcdiag_sli3_loop_post_rxbufs to indicate that it is an SLI3 only path - Create new prep_wqe routine for unsolicited ELS rsp WQEs. - Conversion away from using SLI-3 iocb structures to set/access fields in common routines. Use the new generic get/set routines that were added. This move changes code from indirect structure references to using local variables with the generic routines. - Refactor routines when setting non-generic fields, to have both SLI3 and SLI4 specific sections. This replaces the set-as-SLI3 then translate to SLI4 behavior of the past. Link: https://lore.kernel.org/r/20220225022308.16486-13-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: SLI path split: Refactor VMID pathsJames Smart1-1/+1
This patch refactors the VMID paths to use SLI-4 as the primary interface: - Conversion away from using SLI-3 iocb structures to set/access fields in common routines. Use the new generic get/set routines that were added. This move changes code from indirect structure references to using local variables with the generic routines. - Refactor routines when setting non-generic fields, to have both SLI3 and SLI4 specific sections. This replaces the set-as-SLI3 then translate to SLI4 behavior of the past. Link: https://lore.kernel.org/r/20220225022308.16486-11-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI pathJames Smart1-2/+2
The patch refactors the general ELS handling paths to migrate to SLI-4 structures or common element abstractions. The fabric login paths are revised as part of this patch: - New generic lpfc_sli_prep_els_req_rsp jump table routine - Introduce ls_rjt_error_be and ulp_bde64_le unions to correct legacy endianness assignments - Conversion away from using SLI-3 iocb structures to set/access fields in common routines. Use the new generic get/set routines that were added. This move changes code from indirect structure references to using local variables with the generic routines. - Refactor routines when setting non-generic fields, to have both SLI3 and SLI4 specific sections. This replaces the set-as-SLI3 then translate to SLI4 behavior of the past. - Clean up poor indentation on some of the ELS paths Link: https://lore.kernel.org/r/20220225022308.16486-5-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: SLI path split: Introduce lpfc_prep_wqeJames Smart1-0/+1
Introduce lpfc_prep_wqe routine. The lpfc_prep_wqe() routine is used with lpfc_sli_issue_iocb() and lpfc_sli_issue_iocb_wait(). The routine performs additional SLI-4 wqe field setting that the generic routines did not perform as they kept their actions compatible with both SLI3 and SLI4. Link: https://lore.kernel.org/r/20220225022308.16486-4-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: lpfc: SLI path split: Refactor lpfc_iocbqJames Smart1-4/+4
Currently, SLI3 and SLI4 data paths use the same lpfc_iocbq structure. This is a "common" structure but many of the components refer to sli-rev specific entities which can lead the developer astray as to what they actually mean, should be set to, or when they should be used. This first patch prepares the lpfc_iocbq structure so that elements common to both SLI3 and SLI4 data paths are more appropriately named, making it clear they apply generically. Fieldnames based on 'iocb' (sli3) or 'wqe' (sli4) which are actually generic to the paths are renamed to 'cmd': - iocb_flag is renamed to cmd_flag - lpfc_vmid_iocb_tag is renamed to lpfc_vmid_tag - fabric_iocb_cmpl is renamed to fabric_cmd_cmpl - wait_iocb_cmpl is renamed to wait_cmd_cmpl - iocb_cmpl and wqe_cmpl are combined and renamed to cmd_cmpl - rsvd2 member is renamed to num_bdes due to pre-existing usage The structure name itself will retain the iocb reference as changing to a more relevant "job" or "cmd" title induces many hundreds of line changes for only a name change. lpfc_post_buffer is also renamed to lpfc_sli3_post_buffer to indicate use in the SLI3 path only. Link: https://lore.kernel.org/r/20220225022308.16486-2-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-24scsi: lpfc: Add EDC ELS supportJames Smart1-0/+2
When congestion management is enabled, issue EDC ELS to register congestion signaling capabilities with the fabric. The response handling will process the fabric parameters and set the reporting parameters. Similarly, add support for receiving an EDC request from the fabric generating a corresponding response. Implement handlers for congestion signals from the fabric and maintain statistics for them. Link: https://lore.kernel.org/r/20210816162901.121235-6-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-24scsi: lpfc: Add MIB feature enablement supportJames Smart1-5/+10
MIB support is currently limited to detecting support in the adapter and ensuring FDMI support is enabled if present. For the new framework MIB support also requires active enablement of support via the SET_FEATURES command with the firmware. Rework the MIB detection and enablement for the following: - Move detection away from the get_sli4_parameters routine, and into the hba_setup path. get_sli4_parameters is only called once at attachment while hba_setup is called as part of any SLI port reset path. This ensures detection after firmware download. - Update SET_FEATURES mbx command for the MIB enablement feature and add support for the feature. - Create the cmf_setup routine to encapsulate the detection of MIB support and perform the enablement of the MIB support feature. Link: https://lore.kernel.org/r/20210816162901.121235-4-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27scsi: lpfc: Add 256 Gb link speed supportJames Smart1-0/+5
Update routines to support 256 Gb link speed for LPe37000/LPe38000 adapters. 256 Gb speeds can be seen on trunk links. Link: https://lore.kernel.org/r/20210722221721.74388-5-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-18scsi: lpfc: Fix function description comments for vmid routinesJames Smart1-3/+2
Update comment headers for functions lpfc_vmid_cmd and lpfc_vmid_poll. Link: https://lore.kernel.org/r/20210707184351.67872-5-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-10scsi: lpfc: vmid: Implement CT commands for appidGaurav Srivastava1-0/+255
Implement CT commands for registering and deregistering the appid for the application. Also, a small change in decrementing the ndlp ref counter has been added. Link: https://lore.kernel.org/r/20210608043556.274139-10-muneendra.kumar@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Gaurav Srivastava <gaurav.srivastava@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Muneendra Kumar <muneendra.kumar@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-21scsi: lpfc: Ignore GID-FT response that may be received after a link flipJames Smart1-7/+36
When a link bounce happens, there is a possibility that responses to requests posted prior to the link bounce could be received. This is problematic as the counter to track reglogin completion after link up can become out of sync with the real state. As there is no reason to process a request made in a prior link up context, eliminate all the disturbance by tagging the request with the event_tag maintained by the SLI Port for the link. The event_tag will change on every link state transition. As long as the tag matches the current event_tag, the response can be processed. If it doesn't match, just discard the response. Link: https://lore.kernel.org/r/20210514195559.119853-8-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Copyright updates for 12.8.0.9 patchesJames Smart1-1/+1
Update copyrights to 2021 for files modified in the 12.8.0.9 patch set. Link: https://lore.kernel.org/r/20210412013127.2387-17-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Standardize discovery object logging formatJames Smart1-1/+1
Code inspection showed lpfc was using three different pointer formats when logging discovery object pointers. Standardize the pointer format to x%px. Note: %px use is limited to discovery objects in order to aid core analysis. Link: https://lore.kernel.org/r/20210412013127.2387-14-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-13scsi: lpfc: Fix missing FDMI registrations after Mgmt Svc loginJames Smart1-12/+16
FDMI registration needs to be performed after every login with the FC Mgmt service. The flag the driver is using to track registration is cleared on link up, but never on Mgmt service logout/re-login. Fix by clearing the flag whenever a new login is completed with the FC Mgmt service. While perusing the flag use, logging was performed as if FDMI registration occurred on vports. However, it is limited to the physical port only. Revise the logging to reflect physical port based. Link: https://lore.kernel.org/r/20210412013127.2387-10-jsmart2021@gmail.com Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-03-15scsi: lpfc: Fix formatting and misspelling issuesLee Jones1-6/+6
Fixes the following W=1 kernel build warning(s): drivers/scsi/lpfc/lpfc_ct.c:153: warning: Function parameter or member 'ct_req' not described in 'lpfc_ct_reject_event' drivers/scsi/lpfc/lpfc_ct.c:153: warning: Function parameter or member 'rx_id' not described in 'lpfc_ct_reject_event' drivers/scsi/lpfc/lpfc_ct.c:153: warning: Function parameter or member 'ox_id' not described in 'lpfc_ct_reject_event' drivers/scsi/lpfc/lpfc_ct.c:283: warning: Function parameter or member 'ctiocbq' not described in 'lpfc_ct_handle_mibreq' drivers/scsi/lpfc/lpfc_ct.c:283: warning: Excess function parameter 'ctiocb' description in 'lpfc_ct_handle_mibreq' Link: https://lore.kernel.org/r/20210303144631.3175331-26-lee.jones@linaro.org Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-19scsi: lpfc: Fix missing prototype warning for lpfc_fdmi_vendor_attr_mi()James Smart1-1/+1
Function needs to be declared as static. Link: https://lore.kernel.org/r/20201119203328.121772-1-james.smart@broadcom.com Fixes: 8aaa7bcf07a2 ("scsi: lpfc: Add FDMI Vendor MIB support") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-17scsi: lpfc: Rework remote port lock handlingJames Smart1-6/+4
Currently the discovery layers within the driver use the SCSI midlayer host_lock to access node-specific structures. This can contend with the I/O path and is too coarse of a lock. Rework the driver so that it uses a lock specific to the remote port node structure when accessing the structure contents. A few of the changes brought out spots were some slightly reorganized routines worked better. Link: https://lore.kernel.org/r/20201115192646.12977-6-james.smart@broadcom.com Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com> 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>
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-17 22:20:51 +0000