- 24 Nov, 2020 3 commits
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Finn Thain authored
Refactor to avoid needless calls to NCR5380_maybe_release_dma_irq(). This makes the machine code smaller and the source more readable. Link: https://lore.kernel.org/r/c1317ae8fdcb498460de5d7ea0bd62a42f5eeca8.1605847196.git.fthain@telegraphics.com.auTested-by:
Michael Schmitz <schmitzmic@gmail.com> Reviewed-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Finn Thain authored
It is possible that bus_reset_cleanup() or .eh_abort_handler could be invoked during NCR5380_queuecommand(). If that takes place before the new command is enqueued and after the ST-DMA "lock" has been acquired, the ST-DMA "lock" will be released again. This will result in a lost DMA interrupt and a command timeout. Fix this by excluding EH and interrupt handlers while the new command is enqueued. Link: https://lore.kernel.org/r/af25163257796b50bb99d4ede4025cea55787b8f.1605847196.git.fthain@telegraphics.com.auTested-by:
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Bjorn Andersson authored
The introduction of ufshcd_dme_configure_adapt() refactored out duplication from the Mediatek and Qualcomm drivers. Both these implementations had the logic of: gear_tx == UFS_HS_G4 => PA_INITIAL_ADAPT gear_tx != UFS_HS_G4 => PA_NO_ADAPT but now both implementations pass PA_INITIAL_ADAPT as "adapt_val" and if gear_tx is not UFS_HS_G4 that is replaced with PA_INITIAL_ADAPT. In other words, it's PA_INITIAL_ADAPT in both above cases. The result is that e.g. Qualcomm SM8150 has no longer functional UFS, so adjust the logic to match the previous implementation. Link: https://lore.kernel.org/r/20201121044810.507288-1-bjorn.andersson@linaro.org Fixes: fc85a74e ("scsi: ufs: Refactor ADAPT configuration function") Reviewed-by:Can Guo <cang@codeaurora.org> Reviewed-by:
Stanley Chu <stanley.chu@mediatek.com> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
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- 20 Nov, 2020 24 commits
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James Smart authored
Remove vport variable that is assigned but not used in lpfc_sli4_abts_err_handler(). Link: https://lore.kernel.org/r/20201119203407.121913-1-james.smart@broadcom.com Fixes: e7dab164 ("scsi: lpfc: Fix scheduling call while in softirq context in lpfc_unreg_rpi") Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
James Smart <james.smart@broadcom.com> Signed-off-by:
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James Smart authored
lpfc_nvmet_prep_abort_wqe() needs to be declared static. Link: https://lore.kernel.org/r/20201119203316.121725-1-james.smart@broadcom.com Fixes: db7531d2 ("scsi: lpfc: Convert abort handling to SLI-3 and SLI-4 handlers") Reported-by:
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James Smart authored
Remove set but not used variable shost in lpfc_dev_loss_tmo_handler(). Link: https://lore.kernel.org/r/20201119203353.121866-1-james.smart@broadcom.com Fixes: 52edb2ca ("scsi: lpfc: Remove ndlp when a PLOGI/ADISC/PRLI/REG_RPI ultimately fails") Reported-by:
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James Smart authored
Remove local variables that are set but not used. Link: https://lore.kernel.org/r/20201119203340.121819-1-james.smart@broadcom.com Fixes: c6adba15 ("scsi: lpfc: Rework remote port lock handling") Reported-by:
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James Smart authored
Function needs to be declared as static. Link: https://lore.kernel.org/r/20201119203328.121772-1-james.smart@broadcom.com Fixes: 8aaa7bcf ("scsi: lpfc: Add FDMI Vendor MIB support") Reported-by:
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Colin Ian King authored
Currently there is an error return path that neglects to free the allocation for lcb_context. Fix this by adding a new error free exit path that kfree's lcb_context before returning. Use this new kfree exit path in another exit error path that also kfree's the same object, allowing a line of code to be removed. Link: https://lore.kernel.org/r/20201118141314.462471-1-colin.king@canonical.com Fixes: 4430f7fd ("scsi: lpfc: Rework locations of ndlp reference taking") Reviewed-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
Currently there is a null check on the pointer ndlp that exits via error path issue_ct_rsp_exit followed by another null check on the same pointer that is almost identical to the previous null check stanza and yet can never can be reached because the previous check exited via issue_ct_rsp_exit. This is deadcode and can be removed. Link: https://lore.kernel.org/r/20201118133744.461385-1-colin.king@canonical.comReviewed-by:
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Colin Ian King authored
There is a null check on pointer lpfc_cmd after the pointer has been dereferenced when pointers rdata and ndlp are initialized at the start of the function. Fix this by only assigning rdata and ndlp after the pointer lpfc_cmd has been null checked. Link: https://lore.kernel.org/r/20201118131345.460631-1-colin.king@canonical.com Fixes: 96e209be ("scsi: lpfc: Convert SCSI I/O completions to SLI-3 and SLI-4 handlers") Reviewed-by:
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Tyrel Datwyler authored
The previous patch added support for the targetWWPN field in version 2 MADs and vfcFrame structures. Set the IBMVFC_CAN_SEND_VF_WWPN bit in our capabailites flag during NPIV Login to inform the VIOS that this client supports the feature. Link: https://lore.kernel.org/r/20201118011104.296999-7-tyreld@linux.ibm.comAcked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
Tyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by:
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Tyrel Datwyler authored
Several version 2 MADs and the version 2 vfcFrame structures introduced a new targetWWPN field for better identification of a target over the scsi_id. Set this field and MAD versioning fields when the VIOS advertises the IBMVFC_HANDLE_VF_WWPN capability. Link: https://lore.kernel.org/r/20201118011104.296999-6-tyreld@linux.ibm.comAcked-by:
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Tyrel Datwyler authored
The FC iu and response payloads are located at different offsets depending on the ibmvfc_cmd version. This is a result of the version 2 vfcFrame definition adding an extra 64bytes of reserved space to the structure prior to the payloads. Add helper routines to determine the current vfcFrame version and return a pointer to the proper iu or response structure within that ibmvfc_cmd. Link: https://lore.kernel.org/r/20201118011104.296999-5-tyreld@linux.ibm.comAcked-by:
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Tyrel Datwyler authored
Testing the NPIV Login response capabilities is a long winded process of dereferencing the vhost->login_buf->resp.capabilities field, then byte swapping that value to host endian, and performing the bitwise test. Currently we only ever check this in ibmvfc_cancel_all(), but follow-up patches will need to regularly check for targetWWPN and channelization support. Add a helper to simplify checking various VIOS capabilities, namely ibmvfc_check_caps(). Link: https://lore.kernel.org/r/20201118011104.296999-4-tyreld@linux.ibm.comAcked-by:
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Tyrel Datwyler authored
Introduce a target_wwpn field to several MADs. Its possible that a SCSI ID of a target can change due to some fabric changes. The WWPN of the SCSI target provides a better way to identify the target. Also, add flags for receiving MAD versioning information and advertising client support for targetWWPN with the VIOS. This latter capability flag will be required for future clients capable of requesting multiple hardware queues from the host adapter. Link: https://lore.kernel.org/r/20201118011104.296999-3-tyreld@linux.ibm.comAcked-by:
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Tyrel Datwyler authored
The virtual FC frame command exchanged with the VIOS is used for device reset and command abort TMF as well as normally queued commands. When initializing the ibmvfc_cmd there are several elements of the command that are set the same way regardless of the command type. Deduplicate code by moving these commonally set fields into a initialization helper routine, namely ibmvfc_init_vfc_cmd(). Link: https://lore.kernel.org/r/20201118011104.296999-2-tyreld@linux.ibm.comAcked-by:
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Tyrel Datwyler authored
The vfcFrame correlation field is a 64bit handle that is intended to trace I/O operations through both the client stack and VIOS stack when the underlying physical FC adapter supports tagging. Tag vfcFrames with the associated ibmvfc_event pointer handle. Link: https://lore.kernel.org/r/20201117185031.129939-3-tyreld@linux.ibm.comSigned-off-by:
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Tyrel Datwyler authored
Remove a superfluous semicolon following a closing function block bracket. Link: https://lore.kernel.org/r/20201117185031.129939-2-tyreld@linux.ibm.comSigned-off-by:
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Tyrel Datwyler authored
Both ibmvfc_show_host_(capabilities|npiv_version) functions retrieve values from vhost->login_buf.resp buffer. This is the MAD response buffer from the VIOS and as such any multi-byte non-string values are in big endian format. Byte swap these values to host CPU endian format for better human readability. Link: https://lore.kernel.org/r/20201117185031.129939-1-tyreld@linux.ibm.comSigned-off-by:
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Leo Liou authored
We have LBA and length for unmap commands. Link: https://lore.kernel.org/r/20201117165839.1643377-8-jaegeuk@kernel.orgReviewed-by:
Leo Liou <leoliou@google.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by:
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Jaegeuk Kim authored
The following call stack prevents clk_gating at every I/O completion. We can remove the condition, ufshcd_any_tag_in_use(), since clkgating_work will check it again. ufshcd_complete_requests(struct ufs_hba *hba) ufshcd_transfer_req_compl() __ufshcd_transfer_req_compl() __ufshcd_release(hba) if (ufshcd_any_tag_in_use() == 1) return; ufshcd_tmc_handler(hba); blk_mq_tagset_busy_iter(); Note that this still requires work to deal with a potential race condition when user sets clkgating.delay_ms to very small value. That can cause preventing clkgating by the check of ufshcd_any_tag_in_use() in gate_work. Link: https://lore.kernel.org/r/20201117165839.1643377-7-jaegeuk@kernel.org Fixes: 7252a360 ("scsi: ufs: Avoid busy-waiting by eliminating tag conflicts") Reviewed-by:Asutosh Das <asutoshd@codeaurora.org> Reviewed-by:
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Jaegeuk Kim authored
This adds user-friendly tracepoints with group id. Link: https://lore.kernel.org/r/20201117165839.1643377-6-jaegeuk@kernel.orgReviewed-by:
Jaegeuk Kim <jaegeuk@google.com> Signed-off-by:
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Jaegeuk Kim authored
Must have WQ_MEM_RECLAIM ``WQ_MEM_RECLAIM`` All workqueues which might be used in the memory reclaim paths **MUST** have this flag set. The wq is guaranteed to have at least one execution context regardless of memory pressure. Link: https://lore.kernel.org/r/20201117165839.1643377-5-jaegeuk@kernel.orgReviewed-by:
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Jaegeuk Kim authored
In order to conduct FFU or RPMB operations, UFS needs to clear UNIT ATTENTION condition. Clear it explicitly so that we get no failures during initialization. Link: https://lore.kernel.org/r/20201117165839.1643377-4-jaegeuk@kernel.orgSigned-off-by:
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Jaegeuk Kim authored
While running a stress test which enables/disables clkgating, we occasionally hit device timeout. This patch avoids a subtle race condition to address it. Link: https://lore.kernel.org/r/20201117165839.1643377-3-jaegeuk@kernel.orgReviewed-by:
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Jaegeuk Kim authored
Once UFS is gated with CLKS_OFF, it should not call REQ_CLKS_OFF again. This can lead to hibern8_enter failure. Link: https://lore.kernel.org/r/20201117165839.1643377-2-jaegeuk@kernel.orgReviewed-by:
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- 17 Nov, 2020 13 commits
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Jing Xiangfeng authored
The variable rval has been initialized with 'QLA_ERROR'. The assignment is redundant in an error path. Remove it. Link: https://lore.kernel.org/r/20201103120137.109717-1-jingxiangfeng@huawei.comSigned-off-by:
Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by:
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Stanley Chu authored
Use common ADAPT configuration function to reduce duplicated code in UFS drivers. Link: https://lore.kernel.org/r/20201116065054.7658-10-stanley.chu@mediatek.comReviewed-by:
Bean Huo <beanhuo@micron.com> Signed-off-by:
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Stanley Chu authored
Use common ADAPT configuration function to reduce duplicated code in UFS drivers. Link: https://lore.kernel.org/r/20201116065054.7658-9-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Several vendors are using same code to configure ADAPT settings for HS-G4. Simply refactor it as common function. Link: https://lore.kernel.org/r/20201116065054.7658-8-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Use common device parameter initialization function instead of initializing those parameters by vendor driver itself. Link: https://lore.kernel.org/r/20201116065054.7658-7-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Use common device parameter initialization function instead of initializing those parameters by vendor driver itself. Link: https://lore.kernel.org/r/20201116065054.7658-6-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Use common device parameter initialization function instead of initializing those parameters by vendor driver itself. Link: https://lore.kernel.org/r/20201116065054.7658-5-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Use common device parameter initialization function instead of initializing those parameters by vendor driver itself. Link: https://lore.kernel.org/r/20201116065054.7658-4-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Nowadays many vendors initialize their device parameters in their own vendor drivers. The initialization code is almost the same as well as the pre-defined definitions. Introduce a common device parameter initialization function which assign the most common initial values. With this function, we could remove those duplicated codes in vendor drivers. Link: https://lore.kernel.org/r/20201116065054.7658-3-stanley.chu@mediatek.comReviewed-by:
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Stanley Chu authored
Refactor performance scaling related functions in MediaTek UFS driver. Link: https://lore.kernel.org/r/20201116065054.7658-2-stanley.chu@mediatek.comReviewed-by:
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James Smart authored
Update Copyright in files changed by the 12.8.0.6 patch set to 2020 Link: https://lore.kernel.org/r/20201115192646.12977-18-james.smart@broadcom.comCo-developed-by:
Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by:
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James Smart authored
Update lpfc version to 12.8.0.6 Link: https://lore.kernel.org/r/20201115192646.12977-17-james.smart@broadcom.comCo-developed-by:
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James Smart authored
This patch reworks the abort interfaces such that SLI-3 retains the iocb-based formatting and completions and SLI-4 now uses native WQEs and completion routines. The following changes are made: - The code is refactored from a confusing 2 routine sequence of xx_abort_iotag_issue(), which creates/formats and abort cmd, and xx_issue_abort_tag(), which then issues and handles the completion of the abort cmd - into a single interface of xx_issue_abort_iotag(). The new interface will determine whether SLI-3 or SLI-4 and then call the appropriate handler. A completion handler can now be specified to address the differences in completion handling. Note: original code is all iocb based, with SLI-4 converting to SLI-3 for the SCSI/ELS path, and NVMe natively using wqes. - The SLI-3 side is refactored: The older iocb-base lpfc_sli_issue_abort_iotag() routine is combined with the logic of lpfc_sli_abort_iotag_issue() as well as the iocb-specific code in lpfc_abort_handler() and lpfc_sli_abort_iocb() to create the new single SLI-3 abort routine that formats and issues the iocb. - The SLI-4 side is refactored and added to: The native WQE abort code in NVMe is moved to the new SLI-4 issue_abort_iotag() routine. Items in SCSI that set fields not set by NVMe is migrated into the new routine. Thus the routine supports NVMe and SCSI initiators. The nvmet block (target) formats the abort slightly different (like the old NVMe initiator) thus it has its own prep routine stolen from NVMe initiator and it retains the current code it has for issuing the WQE (does not use the commonized routine the initiators do). SLI-4 completion handlers were also added. - lpfc_abort_handler now becomes a wrapper that determines whether SLI-3 or SLI-4 and calls the proper abort handler. Link: https://lore.kernel.org/r/20201115192646.12977-16-james.smart@broadcom.comCo-developed-by:
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