- 12 Jan, 2023 27 commits
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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.comSigned-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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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.orgSigned-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:
Bart Van Assche <bvanassche@acm.org> Signed-off-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.comSigned-off-by:
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Nilesh Javali authored
Signed-off-by:
Nilesh Javali <njavali@marvell.com> Reviewed-by:
Himanshu Madhani <himanshu.madhani@oracle.com> 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:kernel test robot <lkp@intel.com> Signed-off-by:
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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:
Quinn Tran <qutran@marvell.com> 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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- 30 Dec, 2022 13 commits
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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.comSigned-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:
Bean Huo <beanhuo@micron.com> Suggested-by:
Arthur Simchaev <Arthur.Simchaev@wdc.com> Signed-off-by:
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Arthur Simchaev authored
len argument is not used anymore in ufshcd_set_active_icc_lvl() function. Signed-off-by:
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Arthur Simchaev authored
Always read the descriptor with QUERY_DESC_MAX_SIZE. According to the spec, the device returns the actual size. Signed-off-by:
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Arthur Simchaev authored
We used to use the extended-feature field in the device descriptor as an indication that the device supported UFS 2.2 or later. Remove that as this check is specifically done few lines above. Signed-off-by:
Stanley Chu <stanley.chu@mediatek.com> Signed-off-by:
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Martin K. Petersen authored
Bart Van Assche <bvanassche@acm.org> says: The patches in this series are a first step towards integrating support in the upstream kernel for the UFS controller in the Pixel 6 and 7. [mkp: resolve conflict with RPMB series] Link: https://lore.kernel.org/r/20221208234358.252031-1-bvanassche@acm.orgSigned-off-by:
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Eric Biggers authored
Modify the UFSHCD core to allow 'struct ufshcd_sg_entry' to be variable-length. The default is the standard length, but variants can override ufs_hba::sg_entry_size with a larger value if there are vendor-specific fields following the standard ones. This is needed to support inline encryption with ufs-exynos (FMP). Cc: Eric Biggers <ebiggers@google.com> Reviewed-by:
Avri Altman <avri.altman@wdc.com> Signed-off-by:
Eric Biggers <ebiggers@google.com> [ bvanassche: edited commit message and introduced CONFIG_SCSI_UFS_VARIABLE_SG_ENTRY_SIZE ] Signed-off-by:
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Bart Van Assche authored
Prepare for adding an additional ufshcd_clock_scaling_prepare() call with a different timeout. Reviewed-by:
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Bart Van Assche authored
Wait at most 20 ms before rechecking the doorbells instead of waiting for a potentially long time between doorbell checks. Reviewed-by:
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Martin K. Petersen authored
Andrew Halaney <ahalaney@redhat.com> says: This patch series attempts to clean up some debug code paths in the ufs-qcom driver. Link: https://lore.kernel.org/r/20221201230810.1019834-1-ahalaney@redhat.comSigned-off-by:
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Andrew Halaney authored
dev_err() statements are better to use than pr_err(), so switch to those. In a similar vein, the check on the dev_req_params pointer here is not needed, the two places this function is called never pass in a NULL pointer, so instead of using dev_err() there just remove it. Signed-off-by:
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Andrew Halaney authored
This bitmask is unconditionally set in the current driver, so all conditionals using it can be considered bit rot. Let's take the current default conditional path everywhere and remove dbg_print_en from the driver. Signed-off-by:
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Andrew Halaney authored
The current implementation has abstractions that don't give any benefits. The print_fn callback (and its only callback implementation, ufs_qcom_dump_regs_wrapper()) was only used by ufs_qcom_print_hw_debug_reg_all() and just multiplies len by 4 before calling ufshcd_dump_regs(). ufs_qcom_print_hw_debug_reg_all() is only called by ufs_qcom_dump_dbg_regs(). There's no real gain in those abstractions, so let's just do the work directly in ufs_qcom_dump_dbg_regs() (the dbg_register_dump callback). Signed-off-by:
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