- 12 Jan, 2023 40 commits
-
-
Justin Tee authored
During the sysfs firmware write process, a use-after-free read warning is logged from the lpfc_wr_object() routine: BUG: KFENCE: use-after-free read in lpfc_wr_object+0x235/0x310 [lpfc] Use-after-free read at 0x0000000000cf164d (in kfence-#111): lpfc_wr_object+0x235/0x310 [lpfc] lpfc_write_firmware.cold+0x206/0x30d [lpfc] lpfc_sli4_request_firmware_update+0xa6/0x100 [lpfc] lpfc_request_firmware_upgrade_store+0x66/0xb0 [lpfc] kernfs_fop_write_iter+0x121/0x1b0 new_sync_write+0x11c/0x1b0 vfs_write+0x1ef/0x280 ksys_write+0x5f/0xe0 do_syscall_64+0x59/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The driver accessed wr_object pointer data, which was initialized into mailbox payload memory, after the mailbox object was released back to the mailbox pool. Fix by moving the mailbox free calls to the end of the routine ensuring that we don't reference internal mailbox memory after release. Signed-off-by:
Justin Tee <justin.tee@broadcom.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
-
Justin Tee authored
In a large SAN testing configuration, frequent target port toggle tests are occasionally resulting in missing lun path rediscoveries. An outstanding PRLI can be inflight when a target RSCN dissappearance occurs, causing the driver to retry PRLIs using invalid rpi contexts. Fix by verifying that an ndlp's state was not restarted from PRLI_ISSUE due to an intermediate RSCN. If not in a valid state, early exit PRLI completion handling. The last follow up RSCN indicating target reappearance retriggers PLOGI/PRLI with a valid rpi context and is expected to succeed in LUN path rediscovery. Signed-off-by:
-
Justin Tee authored
With faulty cables in PT2PT topology, an unintentional ndlp double kref decrement can occur. If a FLOGI request is outstanding before the link goes down, the missing FLOGI_ACC causes an F_Port ndlp to remain in the UNUSED state. During link down, lpfc_cleanup_rpis() is called and decrements an ndlp kref. Additionally, when the driver later decides to abort the FLOGI, the FLOGI completion handler decrements the ndlp kref a second time. Remove duplicate clean up logic in lpfc_cleanup_rpis() because the updated FLOGI completion handler already handles the ndlp kref decrement. Signed-off-by:
-
Justin Tee authored
The disable_vport() path calls the discovery state machine on all ndlps, puts them into NPR state, and then calls lpfc_cleanup_rpis() with the remove flag set. This unintentionally decrements an ndlp's kref twice and can result in premature release of an ndlp because lpfc_dev_loss_tmo_handler() triggers clean up of the ndlp again later. Remove redundant code in disable_vport() that sets all the ndlps to NPR, and change the call to lpfc_cleanup_rpis() to not remove the ndlps. lpfc_dev_loss_tmo_handler() will handle final removal of the ndlps. Signed-off-by:
-
Justin Tee authored
During I/O, the following warning message occasionally appears: DMA-API: lpfc 0000:04:00.0: mapping sg segment longer than device claims to support [len=131072] [max=65536] The HBA is capable of supporting 131,072 bytes, so notify DMA layer via the dma_set_max_seg_size() API during hba initialization. Signed-off-by:
-
Justin Tee authored
The local variables called curr_data are incremented, but not actually used for anything so they are removed. The return value of lpfc_sli4_poll_eq is not used anywhere and is not called outside of lpfc_sli.c. Thus, its declaration is removed from lpfc_crtn.h Also, lpfc_sli4_poll_eq's path argument is not used in the routine so it is removed along with corresponding macros. Signed-off-by:
-
Justin Tee authored
The kernel test robot pointed out non-NULL terminated string possibilities when using strncpy() in lpfc_xcvr_data_show() routine. Although we manually set the NULL character after strncpy(), strncpy() usage is outdated. Replace all strncpy() usages with the preferred strscpy() API. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
-
Justin Tee authored
The kernel test robot detected inconsistent indentations for an if statement block in the lpfc_xcvr_data_show() routine. This patch reduces the extraneous tabs used for the if statement block in question. Reported-by:
-
Martin K. Petersen authored
Nilesh Javali <njavali@marvell.com> says: Please apply the qla2xxx driver enhancements to the SCSI tree at your earliest convenience. Link: https://lore.kernel.org/r/20221222043933.2825-1-njavali@marvell.comSigned-off-by:
-
Nilesh Javali authored
Signed-off-by:
Nilesh Javali <njavali@marvell.com> Signed-off-by:
-
Shreyas Deodhar authored
In current I/O path, Tx and Rx may not be processed on same CPU. This may lead to thrashing and optimum performance may not be achieved. Pick qpair such that Tx and Rx are processed on same CPU. Signed-off-by:
Shreyas Deodhar <sdeodhar@marvell.com> Signed-off-by:
-
Quinn Tran authored
clang warning: drivers/scsi/qla2xxx/qla_edif_bsg.h:93:12: warning: field remote_pid within 'struct app_pinfo_req' is less aligned than 'port_id_t' and is usually due to 'struct app_pinfo_req' being packed, which can lead to unaligned accesses [-Wunaligned-access] port_id_t remote_pid; ^ 2 warnings generated. Remove u32 field in remote_pid to silence warning. Reported-by:
Quinn Tran <qutran@marvell.com> Signed-off-by:
-
Quinn Tran authored
For edif, each I/O requires a secondary buffer to carry the FCP cmnd. During high traffic time, these buffers are cached in the qpair. As traffic dies down, these buffers will be trimmed as needed. If traffic is reduced to none over 2 consecutive intervals, then these buffers will be further trimmed. Free FCP cmnd buffers to reduce memory usage during slow I/O time. Signed-off-by:
-
Quinn Tran authored
For N2N, qla2x00_wait_for_sess_deletion call flushes a session which accidentally clear the scan_flag and thus prevents re-login to occur and causes session to stall. Use session delete to avoid the accidental clearing of scan_flag. Signed-off-by:
-
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:
Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by:
-
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:
-
Quinn Tran authored
Remove stale/unused code (GNN ID). Signed-off-by:
-
Quinn Tran authored
Remove stale unused code for GPNID. Signed-off-by:
-
Quinn Tran authored
Removing drport field and FCPORT_UPDATE_NEEDED signals. Signed-off-by:
-
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@kiliSigned-off-by:
Dan Carpenter <error27@gmail.com> Reviewed-by:
Jason Yan <yanaijie@huawei.com> Signed-off-by:
-
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.deSigned-off-by:
-
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:
Bean Huo <beanhuo@micron.com> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
-
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:
-
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:
-
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@qemulionSigned-off-by:
Deepak R Varma <drv@mailo.com> Acked-by:
Jack Wang <jinpu.wang@ionos.com> Signed-off-by:
-
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 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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
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:
-
Manivannan Sadhasivam authored
Make use of dev_err_probe() for printing the probe error. Reviewed-by:
-
Manivannan Sadhasivam authored
Use bitfield macros where appropriate to simplify the driver. Reviewed-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by:
-
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:
-
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:
-
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:
-
Nilesh Javali authored
Signed-off-by:
-
