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path: root/drivers/scsi/lpfc/lpfc_init.c
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2018-11-06scsi: lpfc: Fix lpfc_sli4_read_config return value checkJames Smart
An error is an error - but not to the existing return value check. Revise check to handle any failure, not just EIO. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-06scsi: lpfc: Correct speeds on SFP swapJames Smart
Supported speeds is not updated when SFP is removed or replaced Supported speed is obtained from lmt field in READ_CONFIG mailbox response. Driver updates supported speeds only once from PCI probe path. After that it is never updated. So, supported speeds remains the same till reboot or driver reload. When SFP is removed or inserted, driver gets SLI-Port Event ACQE. If SFP is removed, lmt wil have value 0. If a different SFP is inserted, lmt will have value according to its supported speeds. So, afterr SLI-Port Event ACQE handling path, send READ_CONFIG mailbox and update supported speeds. If READ_CONFIG fails, set supported speeds to unknown and log. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-25Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This is mostly updates of the usual drivers: UFS, esp_scsi, NCR5380, qla2xxx, lpfc, libsas, hisi_sas. In addition there's a set of mostly small updates to the target subsystem a set of conversions to the generic DMA API, which do have some potential for issues in the older drivers but we'll handle those as case by case fixes. A new myrs driver for the DAC960/mylex raid controllers to replace the block based DAC960 which is also being removed by Jens in this merge window. Plus the usual slew of trivial changes" [ "myrs" stands for "MYlex Raid Scsi". Obviously. Silly of me to even wonder. There's also a "myrb" driver, where the 'b' stands for 'block'. Truly, somebody has got mad naming skillz. - Linus ] * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (237 commits) scsi: myrs: Fix the processor absent message in processor_show() scsi: myrs: Fix a logical vs bitwise bug scsi: hisi_sas: Fix NULL pointer dereference scsi: myrs: fix build failure on 32 bit scsi: fnic: replace gross legacy tag hack with blk-mq hack scsi: mesh: switch to generic DMA API scsi: ips: switch to generic DMA API scsi: smartpqi: fully convert to the generic DMA API scsi: vmw_pscsi: switch to generic DMA API scsi: snic: switch to generic DMA API scsi: qla4xxx: fully convert to the generic DMA API scsi: qla2xxx: fully convert to the generic DMA API scsi: qla1280: switch to generic DMA API scsi: qedi: fully convert to the generic DMA API scsi: qedf: fully convert to the generic DMA API scsi: pm8001: switch to generic DMA API scsi: nsp32: switch to generic DMA API scsi: mvsas: fully convert to the generic DMA API scsi: mvumi: switch to generic DMA API scsi: mpt3sas: switch to generic DMA API ...
2018-10-16scsi: lpfc: fix spelling mistake "Resrouce" -> "Resource"Colin Ian King
Trivial fix to spelling mistake in lpfc_printf_log message text. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-02PCI/AER: Remove pci_cleanup_aer_uncorrect_error_status() callsOza Pawandeep
After bfcb79fca19d ("PCI/ERR: Run error recovery callbacks for all affected devices"), AER errors are always cleared by the PCI core and drivers don't need to do it themselves. Remove calls to pci_cleanup_aer_uncorrect_error_status() from device driver error recovery functions. Signed-off-by: Oza Pawandeep <poza@codeaurora.org> [bhelgaas: changelog, remove PCI core changes, remove unused variables] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-09-11scsi: lpfc: add support to retrieve firmware logsJames Smart
This patch adds the ability to read firmware logs from the adapter. The driver registers a buffer with the adapter that is then written to by the adapter. The adapter posts CQEs to indicate content updates in the buffer. While the adapter is writing to the buffer in a circular fashion, an application will poll the driver to read the next amount of log data from the buffer. Driver log buffer size is configurable via the ras_fwlog_buffsize sysfs attribute. Verbosity to be used by firmware when logging to host memory is controlled through the ras_fwlog_level attribute. The ras_fwlog_func attribute enables or disables loggy by firmware. 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>
2018-09-11scsi: lpfc: Correct irq handling via locks when taking adapter offlineJames Smart
When taking the board offline while performing i/o, unsafe locking errors occurred and irq level isn't properly managed. In lpfc_sli_hba_down, spin_lock_irqsave(&phba->hbalock, flags) does not disable softirqs raised from timer expiry. It is possible that a softirq is raised from the lpfc_els_retry_delay routine and recursively requests the same phba->hbalock spinlock causing deadlock. Address the deadlocks by creating a new port_list lock. The softirq behavior can then be managed a level deeper into the calling sequences. 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>
2018-09-11scsi: lpfc: raise sg count for nvme to use available sg resourcesJames Smart
The driver allocates a sg list per io struture based on a fixed maximum size. When it registers with the protocol transports and indicates the max sg list size it supports, the driver manipulates the fixed value to report a lesser amount so that it has reserved space for sg elements that are used for DIF. The driver initialization path sets the cfg_sg_seg_cnt field to the manipulated value for scsi. NVME initialization ran afterward and capped it's maximum by the manipulated value for SCSI. This erroneously made NVME report the SCSI-reduce-for-DIF value that reduced the max io size for nvme and wasted sg elements. Rework the driver so that cfg_sg_seg_cnt becomes the overall maximum size and allow the max size to be tunable. A separate (new) scsi sg count is then setup with the scsi-modified reduced value. NVME then initializes based off the overall maximum. 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>
2018-07-10scsi: lpfc: Support duration field in Link Cable Beacon V1 commandJames Smart
Current implementation missed setting the duration field. Correct the code to set the field. 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>
2018-07-10scsi: lpfc: Make PBDE optimizations configurableJames Smart
The PBDE optimizations aren't supported in all firmware revs. Make optimizations configurable in case there's a side effect on old firmware. 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>
2018-07-10scsi: lpfc: Fix abort error path for NVMETJames Smart
rmmod of driver hangs As driver instances were being unloaded, the NVME target port was unloaded first. During the unload, the NVME initiator port sent a heartbeat IO. Because of the target port state, that IO was scheduled for an Abort; however, that abort subsequently failed. The failure was not cleaned up properly and lpfc_sli4_xri_exchange_busy_wait silently hung forever. Clean failed abort properly and make lpfc_sli4_xri_exchange_busy_wait not hangs silently while waiting for aborts to complete. 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>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-28scsi: lpfc: Fix port initialization failure.James Smart
The driver exits port setup after failing the lpfc_sli4_get_parameters command (messages 0356, 2541, & 1412). The older CNA adapters do not support the MBX command. In the past the code was allowed to fail and continue on with initialization. However a nvme change moved a closing bracket and now makes all failures terminal. Revise the logic so that terminal failure only occurs if the command failed on the newer adapters. Additionally, if parameters are set that require information from the command and the command failed, the parameters are erroneous and port set up should fail even on the older adapters. 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>
2018-05-28scsi: lpfc: Fix 16gb hbas failing cq create.James Smart
The lancer G5 chip family fails the CQ create with 16k page size. The hardware incorrectly reports it supports large page sizes when it is actually limited to 4k pages. A prior patch resolved this for the A0 chip revision only. This patch excludes all revisions of the G5 asic from using large page sizes. As knowing the actual chip revision is unnecessary, the now unused definitions are removed 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>
2018-05-08scsi: lpfc: fix spelling mistakes: "mabilbox" and "maibox"Colin Ian King
Trivial fix to spelling mistakes in lpfc_printf_log log message "mabilbox" -> "mailbox" "maibox" -> "mailbox" Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: lpfc: Comment cleanup regarding Broadcom copyright headerJames Smart
Fix small formatting and wording nits in Broadcom copyright header 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>
2018-05-08scsi: lpfc: Driver NVME load fails when CPU cnt > WQ resource cntJames Smart
If the cpu count is larger than the number of WQ resources available, adapter attachment eventually failes due to a WQ_CREATE failure. Calculate the number of WQs desired (which initializes to cpu count) after accounting for the number of queues the adapter supports and the number allocated to SCSI and the control/ELS path, and scale down if necessary. 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>
2018-05-08scsi: lpfc: Handle new link fault code returned by adapter firmware.James Smart
The driver encounters a link event ACQE with a fault code it doesn't recognize, it logs an "Invalid" fault type and futher treats the unknown value as a mailbox command failure. First off, there is no "invalid" value, only values that are unknown. Secondly, the fault code doesn't indicate status - the rest of the ACQE contains that status so there is no reason to "fail the commands". Change the "Invalid" to "Unknown". There is no "invalid" code value. Separate fault code parsing and message genaration from any mbx handling status. 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>
2018-05-08scsi: lpfc: Correct fw download error messageJames Smart
In situations when the firmware image in inappropriate for the chip type, initial validation checks were light, allowing the checks to pass, thus allowing the firmware to be downloaded. Eventually, after the download, the chip rejects the firmware but it is logged as a generic firmware download error. Revise the initial checks to validate the image vs asic type so that the correct message is displayed and the download process is avoided. 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>
2018-04-18scsi: lpfc: Fix WQ/CQ creation for older asic's.James Smart
The patch to enlarge WQ/CQ creation keys off of an adapter response that indicates support for the larger values. Older adapters return an incorrect response and are limited in size. Thus the adapters fail the WQ creation steps. Augment the WQ sizing checks with a check on the older adapter types and limit them to the restricted sizes. Fixes: c176ffa0841c ("scsi: lpfc: Increase CQ and WQ sizes for SCSI") 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>
2018-04-18scsi: lpfc: Fix lingering lpfc_wq resource after driver unloadJames Smart
After driver unloads, lpfc_wq remains active. The destroy_workqueue calls were not being made in driver unload. Additionally, SLI3 is allocating lpfc_wq resources, but never uses it. Make the destroy_workqueue calls on driver unload. Modify the SLI3 code path no longer allocate lpfc_wq resources. 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>
2018-04-18scsi: lpfc: Add per io channel NVME IO statisticsJames Smart
When debugging various issues, per IO channel IO statistics were useful to understand what was happening. However, many of the stats were on a port basis rather than an io channel basis. Move statistics to an io channel basis. 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>
2018-03-12scsi: lpfc: Memory allocation error during driver start-up on power8James Smart
The driver fails to allocate command buffers in the routine lpfc_new_scsi_buf_s4 There is an inconsistency between lpfc_mem_alloc(), where the phba->lpfc_sg_dma_buf_pool is created, and lpfc_new_scsi_buf_s4(), when we allocate a buffer from the pool and check the alignment. The alignment should be on a page boundary, based on LPFC_SLI3_BG_ENABLED in sli3_options, for both cases. Fix by explicitly tracking sli4 vs sli3 and BG options. The result is that phba->cfg_sg_dma_buf_size is now set correctly for SLI-4. 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>
2018-03-12scsi: lpfc: Streamline NVME Targe6t WQE setupJames Smart
To reduce latency when initializing WQE content, created templates for the most common wqes. This reduces the number of operations taken to set the content. It's not a lot of speed up, but every bit helps. This patch updates the NVME target path. [mkp: fixed 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>
2018-03-12scsi: lpfc: Streamline NVME Initiator WQE setupJames Smart
To reduce latency when initializing WQE content, create templates for the most common wqes. This reduces the number of operations taken to set the content. It's not a lot of speed up, but every bit helps. This patch updates the NVME initiator path. [mkp: fixed 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>
2018-02-22scsi: lpfc: Work around NVME cmd iu SGL typeJames Smart
The hardware offload for NVME commands was created when the FC-NVME standard was setting SGL Descriptor Type to SGL Data Block Descriptor (0h) and SGL Descriptor Sub Type to Address (0h). A late change in NVMe-over-Fabrics obsoleted these values, creating a transport SGL descriptor type with new values to go into these fields. For initial hardware support, in order to be compliant to the spec, use host-supplied cmd IU buffers instead of the adapter generated values. Later hardware will correct this. Add a module parameter to override this offload disablement if looking for lowest latency. This is reasonable as nothing in FC-NVME uses the SQE SGL values. 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>
2018-02-22scsi: lpfc: Add embedded data pointers for enhanced performanceJames Smart
The current driver isn't taking advantage of a performance hint whereby the initial data buffer descriptor can be placed in the WQE as well as the SGL. Add the logic to detect support for the feature and to use it when supported. 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>
2018-02-22scsi: lpfc: Enable fw download on if_type=6 devicesJames Smart
Current code is very explicit in what it allows to be downloaded. The driver checking prevented G7 firmware download. The driver checking is unnecessary as the device will validate what it receives. Revise the firmware download interface checking. Added a little debug support in case there is still a failure. 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>
2018-02-22scsi: lpfc: Add if_type=6 support for cycling valid bitsJames Smart
Traditional SLI4 required the driver to clear Valid bits on EQEs and CQEs after consuming them. The new if_type=6 hardware will cycle the value for what is valid on each queue itteration. The driver no longer has to touch the valid bits. This also means all the cpu cache dirtying and perhaps flush/refill's done by the hardware in accessing the EQ/CQ elements is eliminated. 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>
2018-02-22scsi: lpfc: Add 64G link speed supportJames Smart
The G7 adapter supports 64G link speeds. Add support to the driver. In addition, a small cleanup to replace the odd bitmap logic with a switch case. 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>
2018-02-22scsi: lpfc: Add PCI Ids for if_type=6 hardwareJames Smart
Add PCI ids for the new G7 adapter 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>
2018-02-22scsi: lpfc: Add push-to-adapter support to sli4James Smart
New if_type=6 adapters support an additional BAR that provides apertures to allow direct WQE to adapter push support - termed Direct Packet Push (DPP). WQ creation differs slightly to ask for a WQ to be DPP-ized. When submitting a WQE to a DPP WQ, it is submitted to the host memory for the WQ normally, but is also written by the host cpu directly to a BAR aperture. Write buffer coalescing in hardware is (hopefully) turned on, enabling single pci write operation support. The doorbell is thing rung to indicate the WQE is available and was pushed to the aperture. This patch: - Updates the WQ Create commands for the DPP options - Adds the bar mapping for if_type=6 DPP bar - Adds the WQE pushing to the DDP aperture received from WQ create - Adds a new module parameter to disable DPP operation if desired. Default is enabled. 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>
2018-02-22scsi: lpfc: Add SLI-4 if_type=6 support to the code baseJames Smart
New hardware supports a SLI-4 interface, but with a new if_type variant of 6. If_type=6 has a different PCI BAR map, separate EQ/CQ doorbells, and some changes in doorbell formats. Add the changes for the if_type into headers, adapter initialization and control flows. Add new eq and cq handlers. 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>
2018-02-22scsi: lpfc: Rework sli4 doorbell infrastructureJames Smart
Up until now, all SLI-4 devices had the same doorbells at the same bar locations. With newer hardware, there are now independent EQ and CQ doorbells and the bar locations differ. Prepare the code for new hardware by separating the eq/cq doorbell into separate components. The components can be set based on if_type. 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>
2018-02-22scsi: lpfc: Rework lpfc to allow different sli4 cq and eq handlersJames Smart
Up until now, an SLI-4 device had no variance in the way it handled its EQs and CQs. With newer hardware, there are now differences in doorbells and some differences in how entries are valid. Prepare the code for new hardware by creating a sli4-based callout table that can be set based on if_type. 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>
2018-02-12scsi: lpfc: Update 11.4.0.7 modified files for 2018 CopyrightJames Smart
Updated Copyright in files updated 11.4.0.7 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>
2018-02-12scsi: lpfc: Validate adapter support for SRIU optionJames Smart
When using the special option to suppress the response iu, ensure the adapter fully supports the feature by checking feature flags from the adapter and validating the support when formatting the WQE. 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>
2018-02-12scsi: lpfc: Fix SCSI io host reset causing kernel crashJames Smart
During SCSI error handling escalation to host reset, the SCSI io routines were moved off the txcmplq, but the individual io's ON_CMPLQ flag wasn't cleared. Thus, a background thread saw the io and attempted to access it as if on the txcmplq. Clear the flag upon removal. 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>
2018-02-12scsi: lpfc: move placement of target destroy on driver detachJames Smart
Ensure nvme localports/targetports are torn down before dismantling the adapter sli interface on driver detachment. This aids leaving interfaces live while nvme may be making callbacks to abort it. 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>
2018-02-12scsi: lpfc: Increase CQ and WQ sizes for SCSIJames Smart
Increased CQ and WQ sizes for SCSI FCP, matching those used for NVMe development. 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>
2017-12-20scsi: lpfc: Increase SCSI CQ and WQ sizes.James Smart
Increased the sizes of the SCSI WQ's and CQ's so that SCSI operation is similar to that used by NVME. However, size increase restricted only to those newer adapters that can support the larger WQE size, thus bigger queue sizes. 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>
2017-12-20scsi: lpfc: Fix random heartbeat timeouts during heavy IOJames Smart
NVME targets appear to randomly disconnect from the initiator when running heavy IO. The error is due to the host aggregate (across all controllers) io load was beyond the maximum exchange count for nvme on the adapter. The driver was properly returning a resource busy status, but the io load was so great heartbeat commands would be bounced and not have a successful retry within the fuzz amount for the nvme heartbeat (yes, a very high io load!). Thus the target was terminating the controller due to a keep alive failure. Resolve by reserving a few exchanges (by counters) which can be used when the adapter is out of normal exchanges and the command is a NVME heartbeat command. As counters are used, while the reserved command is outstanding, as soon as any other exchange completes, the counters are adjusted and the reserved count is replenished. The heartbeat completes execution in a normal fashion. 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>
2017-12-04scsi: lpfc: small sg cnt cleanupJames Smart
The logic for sg_seg_cnt is a bit convoluted. This patch tries to clean up a couple of areas, especially around the +2 and +1 logic. This patch: - Cleans up the lpfc_sg_seg_cnt attribute to specify a real minimum rather than making the minimum be whatever the default is. - Removes the hardcoding of +2 (for the number of elements we use in a sgl for cmd iu and rsp iu) and +1 (an additional entry to compensate for nvme's reduction of io size based on a possible partial page) logic in sg list initialization. In the case where the +1 logic is referenced in host and target io checks, use the values set in the transport template as that value was properly set. There can certainly be more done in this area and it will be addressed in combined host/target driver effort. 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>
2017-12-04scsi: lpfc: Fix driver handling of nvme resources during unloadJames Smart
During driver unload, the driver may crash due to NULL pointers. The NULL pointers were due to the driver not protecting itself sufficiently during some of the teardown paths. Additionally, the driver was not waiting for and cleanup up nvme io resources. As such, the driver wasn't making the callbacks to the transport, stalling the transports association teardown. This patch waits for io clean up before tearding down and adds checks for possible NULL pointers. Cc: <stable@vger.kernel.org> # 4.12+ 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>
2017-12-04scsi: lpfc: Adjust default value of lpfc_nvmet_mrqJames Smart
The current default for async hw receive queues is 1, which presents issues under heavy load as number of queues influence the available async receive buffer limits. Raise the default to the either the current hw limit (16) or the number of hw qs configured (io channel value). Revise the attribute definition for mrq to better reflect what we do for hw queues. E.g. 0 means default to optimal (# of cpus), non-zero specifies a specific limit. Before this change, mrq=0 meant target mode was disabled. As 0 now has a different meaning, rework the if tests to use the better nvmet_support check. 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>
2017-12-04scsi: lpfc: Fix crash after bad bar setup on driver attachmentJames Smart
In test cases where an instance of the driver is detached and reattached, the driver will crash on reattachment. There is a compound if statement that will skip over the bar setup if the pci_resource_start call is not successful. The driver erroneously returns success to its bar setup in this scenario even though the bars aren't properly configured. Rework the offending code segment for proper initialization steps. If the pci_resource_start call fails, -ENOMEM is now returned. Sample stack: rport-5:0-10: blocked FC remote port time out: removing rport BUG: unable to handle kernel NULL pointer dereference at (null) ... lpfc_sli4_wait_bmbx_ready+0x32/0x70 [lpfc] ... ... RIP: 0010:... ... lpfc_sli4_wait_bmbx_ready+0x32/0x70 [lpfc] Call Trace: ... lpfc_sli4_post_sync_mbox+0x106/0x4d0 [lpfc] ... ? __alloc_pages_nodemask+0x176/0x420 ... ? __kmalloc+0x2e/0x230 ... lpfc_sli_issue_mbox_s4+0x533/0x720 [lpfc] ... ? mempool_alloc+0x69/0x170 ... ? dma_generic_alloc_coherent+0x8f/0x140 ... lpfc_sli_issue_mbox+0xf/0x20 [lpfc] ... lpfc_sli4_driver_resource_setup+0xa6f/0x1130 [lpfc] ... ? lpfc_pci_probe_one+0x23e/0x16f0 [lpfc] ... lpfc_pci_probe_one+0x445/0x16f0 [lpfc] ... local_pci_probe+0x45/0xa0 ... work_for_cpu_fn+0x14/0x20 ... process_one_work+0x17a/0x440 Cc: <stable@vger.kernel.org> # 4.12+ 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>
2017-12-04scsi: lpfc: Handle XRI_ABORTED_CQE in soft IRQJames Smart
XRI_ABORTED_CQE completions were not being handled in the fast path. They were being queued and deferred to the lpfc worker thread for processing. This is an artifact of the driver design prior to moving queue processing out of the isr and into a workq element. Now that queue processing is already in a deferred context, remove this artifact and process them directly. 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>
2017-12-04scsi: lpfc: Expand WQE capability of every NVME hardware queueJames Smart
Hardware queues are a fast staging area to push commands into the adapter. The adapter should drain them extremely quickly. However, under heavy io load, the host cpu is pushing commands faster than the drain rate of the adapter causing the driver to resource busy commands. Enlarge the hardware queue (wq & cq) to support a larger number of queue entries (4x the prior size) before backpressure. Enlarging the queue requires larger contiguous buffers (16k) per logical page for the hardware. This changed calling sequences that were expecting 4K page sizes that now must pass a parameter with the page sizes. It also required use of a new version of an adapter command that can vary the page size values. 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>
2017-11-14Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas, megaraid_sas, pm80xx, mpt3sas, be2iscsi, hpsa. and a host of minor updates. There's no major behaviour change or additions to the core in all of this, so the potential for regressions should be small (biggest potential being in the scsi error handler changes)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (203 commits) scsi: lpfc: Fix hard lock up NMI in els timeout handling. scsi: mpt3sas: remove a stray KERN_INFO scsi: mpt3sas: cleanup _scsih_pcie_enumeration_event() scsi: aacraid: use timespec64 instead of timeval scsi: scsi_transport_fc: add 64GBIT and 128GBIT port speed definitions scsi: qla2xxx: Suppress a kernel complaint in qla_init_base_qpair() scsi: mpt3sas: fix dma_addr_t casts scsi: be2iscsi: Use kasprintf scsi: storvsc: Avoid excessive host scan on controller change scsi: lpfc: fix kzalloc-simple.cocci warnings scsi: mpt3sas: Update mpt3sas driver version. scsi: mpt3sas: Fix sparse warnings scsi: mpt3sas: Fix nvme drives checking for tlr. scsi: mpt3sas: NVMe drive support for BTDHMAPPING ioctl command and log info scsi: mpt3sas: Add-Task-management-debug-info-for-NVMe-drives. scsi: mpt3sas: scan and add nvme device after controller reset scsi: mpt3sas: Set NVMe device queue depth as 128 scsi: mpt3sas: Handle NVMe PCIe device related events generated from firmware. scsi: mpt3sas: API's to remove nvme drive from sml scsi: mpt3sas: API 's to support NVMe drive addition to SML ...
2017-11-01scsi: lpfc: Convert timers to use timer_setup()Kees Cook
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: James Smart <james.smart@broadcom.com> Cc: Dick Kennedy <dick.kennedy@broadcom.com> Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit (git 2.34.1) at 2025-08-01 20:29:36 +0000