- Jan 12, 2023
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Quinn Tran authored
User experienced performance dip on measuring IOPS while EDIF enabled. During I/O time, driver uses dma_pool_zalloc() call to allocate a chunk of memory. This call contains a lock behind the scene which contribute to lock contention. Save the allocated memory for reuse and avoid the lock. Signed-off-by:
Quinn Tran <qutran@marvell.com> Signed-off-by:
Nilesh Javali <njavali@marvell.com> Reviewed-by:
Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Quinn Tran authored
There is no functional change in this patch. VP map resource is renamed and relocated so it is not viewed as just a target mode resource. Signed-off-by:
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Quinn Tran authored
Remove stale/unused code (GNN ID). Signed-off-by:
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Quinn Tran authored
Remove stale unused code for GPNID. Signed-off-by:
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Quinn Tran authored
Removing drport field and FCPORT_UPDATE_NEEDED signals. Signed-off-by:
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Dan Carpenter authored
This code accidentally returns success instead of -ENOMEM. Fixes: 7cc7646b ("scsi: libsas: Factor out sas_ata_add_dev()") Link: https://lore.kernel.org/r/Y7asLxzVwQ56G+ya@kili Signed-off-by:
Dan Carpenter <error27@gmail.com> Reviewed-by:
Jason Yan <yanaijie@huawei.com> Signed-off-by:
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Martin K. Petersen authored
Bean Huo <beanhuo@iokpp.de> says: These patches are to fix several compilation warnings introduced by my commit: 6ff265fc ("scsi: ufs: core: bsg: Add advanced RPMB support in ufs_bsg"), please consider this patch series for the next your merge window. Apologies for this!! Link: https://lore.kernel.org/r/20230108224057.354438-1-beanhuo@iokpp.de Signed-off-by:
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Bean Huo authored
Fix the following sparse endianness warning: "sparse warnings: drivers/ufs/core/ufs_bsg.c:91:25: sparse: sparse: cast to restricted __be16." For consistency with endianness annotations of other UFS data structures, change __u16/32 to __be16/32 in UFS ARPMB data structures. Fixes: 6ff265fc ("scsi: ufs: core: bsg: Add advanced RPMB support in ufs_bsg") Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Bean Huo <beanhuo@micron.com> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
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Bean Huo authored
In 'include/ufs/ufshcd.h' file, 'enum dma_data_direction' will be used, which is defined in linux/dma-direction.h, however, this header file is not included in ufshcd.h, thus causing the following compilation warning: "warning: ‘enum dma_data_direction’ declared inside parameter list will not be visible outside of this definition or declaration" Fix this warning by including 'linux/dma-direction.h'. Fixes: 6ff265fc ("scsi: ufs: core: bsg: Add advanced RPMB support in ufs_bsg") Reported-by:
Xiaosen He <quic_xiaosenh@quicinc.com> Reported-by:
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Bean Huo authored
Compilation complains that two possible variables are used without initialization: drivers/ufs/core/ufs_bsg.c:112:6: warning: variable 'sg_cnt' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] drivers/ufs/core/ufs_bsg.c:112:6: warning: variable 'sg_list' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] Fix both warnings by adding initialization with sg_cnt = 0, sg_list = NULL. Fixes: 6ff265fc ("scsi: ufs: core: bsg: Add advanced RPMB support in ufs_bsg") Signed-off-by:
Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by:
Nick Desaulniers <ndesaulniers@google.com> Reviewed-by:
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Deepak R Varma authored
According to Documentation/filesystems/sysfs.rst, the show() callback function of kobject attributes should use sysfs_emit() instead of the sprintf() family of functions. Issue identified using the coccinelle device_attr_show.cocci script. Link: https://lore.kernel.org/r/Y5JE/xI2NNbnox/A@qemulion Signed-off-by:
Deepak R Varma <drv@mailo.com> Acked-by:
Jack Wang <jinpu.wang@ionos.com> Signed-off-by:
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Martin K. Petersen authored
Nilesh Javali <njavali@marvell.com> says: Please apply the miscellaneous qla2xxx driver bug fixes to the SCSI tree at your earliest convenience. Link: https://lore.kernel.org/r/20221219110748.7039-1-njavali@marvell.com Signed-off-by:
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Martin K. Petersen authored
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> says: This series adds HS-G4 support to the Qcom UFS driver and PHY driver. The newer Qcom platforms support configuring the UFS controller and PHY in dual gears (i.e., controller/PHY can be configured to run in two gear speeds). This is accomplished by adding two different PHY init sequences to the PHY driver and the UFS driver requesting the one that's required based on the platform configuration. Initially the ufs-qcom driver will use the default gear G2 for enumerating the UFS device. Afer enumeration, the max gear supported by both the controller and device would be found out and that will be used thereafter. But for using the max gear after enumeration, the ufs-qcom driver requires the UFS device to be reinitialized. For this purpose, a separate quirk has been introduced in the UFS core along with a callback and those will be used by the ufs-qcom driver. This series has been tested on following platforms: * Qcom RB5 development platform powered by SM8250 SoC * SM8450 based dev board * Qdrive3/sa8540p-ride board based on SC8280XP (derivative) Link: https://lore.kernel.org/r/20221222141001.54849-1-manivannan.sadhasivam@linaro.org Signed-off-by:
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Manivannan Sadhasivam authored
Qcom UFS drivers are left unmaintained till now. I'd like to step up to maintain the drivers and the binding. Acked-by:
Bjorn Andersson <andersson@kernel.org> Signed-off-by:
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by:
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Manivannan Sadhasivam authored
Starting from Qcom UFS version 4.0, vendor specific REG_UFS_PARAM0 register can be used to determine the maximum gear supported by the controller. Suggested-by:
Can Guo <quic_cang@quicinc.com> Reviewed-by:
Andrew Halaney <ahalaney@redhat.com> Tested-by: Andrew Halaney <ahalaney@redhat.com> # Qdrive3/sa8540p-ride Signed-off-by:
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Manivannan Sadhasivam authored
Starting from Qualcomm UFS version 4, the UFS device needs to be reinitialized after switching to maximum gear by the UFS core. Hence, add support for it by enabling the UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH quirk, implementing reinit_notify() callback and using the agreed gear speed for setting the PHY mode. Suggested-by:
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Manivannan Sadhasivam authored
In the preparation of adding support for new gears, move the logic that finds the gear for each platform to a new function. This helps with code readability and also allows the logic to be used in other places of the driver in future. While at it, make it clear that this driver only supports symmetric gear setting (hs_tx_gear == hs_rx_gear). Reviewed-by:
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Manivannan Sadhasivam authored
Some platforms like Qcom, requires the UFS device to be reinitialized after switching to maximum gear speed. So add support for that in UFS core by introducing a new quirk (UFSHCD_CAP_REINIT_AFTER_MAX_GEAR_SWITCH) and doing the reinitialization, if the quirk is enabled by the controller driver. Suggested-by:
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Manivannan Sadhasivam authored
reinit_notify() callback can be used by the UFS controller drivers to perform changes required for UFSHCD reinit that can happen during max gear switch. Tested-by: Andrew Halaney <ahalaney@redhat.com> # Qdrive3/sa8540p-ride Signed-off-by:
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Manivannan Sadhasivam authored
On newer UFS revisions, the register at offset 0xD0 is called, REG_UFS_PARAM0. Since the existing register, RETRY_TIMER_REG is not used anywhere, it is safe to use the new name. Reviewed-by:
Asutosh Das <quic_asutoshd@quicinc.com> Tested-by: Andrew Halaney <ahalaney@redhat.com> # Qdrive3/sa8540p-ride Signed-off-by:
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Manivannan Sadhasivam authored
Make use of dev_err_probe() for printing the probe error. Reviewed-by:
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Manivannan Sadhasivam authored
Use bitfield macros where appropriate to simplify the driver. Reviewed-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by:
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Manivannan Sadhasivam authored
In the reset assert and deassert callbacks, the supplied "id" is not used at all and only the HBA reset is performed all the time. So there is no reason to use a WARN_ON() on the "id". Reviewed-by:
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Manivannan Sadhasivam authored
A goto statement in an error path is useful if the function needs to do cleanup other than returning the error code. But in this driver, goto statements are used for just returning the error code in many places. This really makes it hard to read the code. Get rid of those goto statements and just return the error code directly. Reviewed-by:
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Martin K. Petersen authored
Zhe Wang <zhe.wang1@unisoc.com> says: Add support for Unisoc UFS host controller. Link: https://lore.kernel.org/r/20221209124121.20306-1-zhe.wang1@unisoc.com Signed-off-by:
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Nilesh Javali authored
Signed-off-by:
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Nilesh Javali authored
Make qla_get_iocbs_resource() static to fix the warning: >> drivers/scsi/qla2xxx/qla_iocb.c:3820:5: warning: no previous prototype for >> 'qla_get_iocbs_resource' [-Wmissing-prototypes] 3820 | int qla_get_iocbs_resource(struct srb *sp) | ^~~~~~~~~~~~~~~~~~~~~~ Reported-by: -
Saurav Kashyap authored
Residual underrun is not an interface error, hence no need to increment that count. Fixes: dbf1f53c ("scsi: qla2xxx: Implementation to get and manage host, target stats and initiator port") Cc: stable@vger.kernel.org Signed-off-by:
Saurav Kashyap <skashyap@marvell.com> Signed-off-by:
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Quinn Tran authored
If after an adapter reset the appearance of link is not recovered, the devices are not rediscovered. This is result of a race condition between adapter reset (abort_isp) and the topology scan. During adapter reset, the ABORT_ISP_ACTIVE flag is set. Topology scan usually occurred after adapter reset. In this case, the topology scan came earlier than usual where it ran into problem due to ABORT_ISP_ACTIVE flag was still set. kernel: qla2xxx [0000:13:00.0]-1005:1: Cmd 0x6a aborted with timeout since ISP Abort is pending kernel: qla2xxx [0000:13:00.0]-28a0:1: MBX_GET_PORT_NAME failed, No FL Port. kernel: qla2xxx [0000:13:00.0]-286b:1: qla2x00_configure_loop: exiting normally. local port wwpn 51402ec0123d9a80 id 012300) kernel: qla2xxx [0000:13:00.0]-8017:1: ADAPTER RESET SUCCEEDED nexus=1:0:15. Allow adapter reset to complete before any scan can start. Cc: stable@vger.kernel.org Signed-off-by:
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Quinn Tran authored
FCF_ASYNC_SENT flag is used in session management. This flag is cleared in task management path by accident. Remove unintended flag clearing. Fixes: 388a4995 ("scsi: qla2xxx: Fix panic from use after free in qla2x00_async_tm_cmd") Cc: stable@vger.kernel.org Signed-off-by:
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Quinn Tran authored
If a login failed due to low FW resources, the session can stall and will not be connected. Reset session state to allow relogin logic to redrive the connection. Signed-off-by:
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Quinn Tran authored
Add resource checking for management (non-I/O) commands. Fixes: 89c72f42 ("scsi: qla2xxx: Add IOCB resource tracking") Signed-off-by:
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Quinn Tran authored
In large environment, it is possible to experience command timeout and escalation of path recovery. Currently the driver does not track the number of exchanges/commands sent to FW. If there is a delay for commands at the head of the queue, then this will create back pressure for commands at the back of the queue. Check for exchange availability before command submission. Fixes: 89c72f42 ("scsi: qla2xxx: Add IOCB resource tracking") Signed-off-by:
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Arun Easi authored
The following message and call trace was seen with debug kernels: DMA-API: qla2xxx 0000:41:00.0: device driver failed to check map error [device address=0x00000002a3ff38d8] [size=1024 bytes] [mapped as single] WARNING: CPU: 0 PID: 2930 at kernel/dma/debug.c:1017 check_unmap+0xf42/0x1990 Call Trace: debug_dma_unmap_page+0xc9/0x100 qla_nvme_ls_unmap+0x141/0x210 [qla2xxx] Remove DMA mapping from the driver altogether, as it is already done by FC layer. This prevents the warning. Fixes: c85ab7d9 ("scsi: qla2xxx: Fix missed DMA unmap for NVMe ls requests") Cc: stable@vger.kernel.org Signed-off-by:
Arun Easi <aeasi@marvell.com> Signed-off-by:
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Quinn Tran authored
User experienced symptoms of adapter failure in NPIV environment. NPIV hosts were allowed to trigger chip reset back to back due to NPIV link state being slow to come online. Fix link failure in NPIV environment by removing NPIV host from directly being able to perform chip reset. kernel: qla2xxx [0000:04:00.1]-6009:261: Loop down - aborting ISP. kernel: qla2xxx [0000:04:00.1]-6009:262: Loop down - aborting ISP. kernel: qla2xxx [0000:04:00.1]-6009:281: Loop down - aborting ISP. kernel: qla2xxx [0000:04:00.1]-6009:285: Loop down - aborting ISP Fixes: 0d6e61bc ("[SCSI] qla2xxx: Correct various NPIV issues.") Cc: stable@vger.kernel.org Signed-off-by:
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Shreyas Deodhar authored
CT Ping and ELS cmds fail for NVMe targets. Check if port is online before sending ELS instead of sending login. Cc: stable@vger.kernel.org Signed-off-by:
Shreyas Deodhar <sdeodhar@marvell.com> Signed-off-by:
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Zhe Wang authored
Add driver code for Unisoc UFS host controller, along with UFS initialization. Signed-off-by:
Zhe Wang <zhe.wang1@unisoc.com> Reviewed-by:
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Zhe Wang authored
Add Unisoc ums9620 UFS host controller devicetree document. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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- Dec 31, 2022
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Martin K. Petersen authored
Arthur Simchaev <Arthur.Simchaev@wdc.com> says: Read any descriptor with a maximum size of QUERY_DESC_MAX_SIZE. According to the spec the device returns the actual size. Thus can improve code readability and save CPU cycles. While at it, clean up few leftovers around the descriptor size parameter. Link: https://lore.kernel.org/r/1670763911-8695-1-git-send-email-Arthur.Simchaev@wdc.com Signed-off-by:
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Arthur Simchaev authored
There shouldn't be any restriction of the descriptor size (not the descriptor id for that matter) up to QUERY_DESC_MAX_SIZE. According to the spec, the caller can use any descriptor size, and it is up to the device to return the actual size. Therefore there shouldn't be any sizes hardcoded in the kernel, nor any need to cache it, hence the ufshcd_map_desc_id_to_length() function is redundant. Always read the descriptors with QUERY_DESC_MAX_SIZE size. Reviewed-by:
Arthur Simchaev <Arthur.Simchaev@wdc.com> Signed-off-by:
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