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2020-10-03scsi: qedi: Add schedule_hw_err_handler callback for fan failureManish Rangankar2-0/+21
On fan failure event from MFW, bring down active connections and unload the firmware context. Link: https://lore.kernel.org/r/20200924070338.8270-1-mrangankar@marvell.com Signed-off-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: target: tcmu: Fix warning: 'page' may be used uninitializedJohn Donnelly1-1/+1
Corrects drivers/target/target_core_user.c:688:6: warning: 'page' may be used uninitialized. Link: https://lore.kernel.org/r/20200924001920.43594-1-john.p.donnelly@oracle.com Fixes: 3c58f737231e ("scsi: target: tcmu: Optimize use of flush_dcache_page") Cc: Mike Christie <michael.christie@oracle.com> Acked-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: John Donnelly <john.p.donnelly@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: fnic: Fix inconsistent format argument type in fnic_debugfs.cYe Bin1-3/+3
Fix the following warnings: [drivers/scsi/fnic/fnic_debugfs.c:123]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. [drivers/scsi/fnic/fnic_debugfs.c:125]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. [drivers/scsi/fnic/fnic_debugfs.c:127]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. Link: https://lore.kernel.org/r/20200930021919.2832860-2-yebin10@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Acked-by: Karan Tilak Kumar <kartilak@cisco.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: snic: Remove unnecessary conditionJing Xiangfeng1-4/+0
ret is always zero or error so the assignment is redundant. Link: https://lore.kernel.org/r/20200925060754.156599-1-jingxiangfeng@huawei.com Acked-by: Karan Tilak Kumar <kartilak@cisco.com> Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: fnic: Do not call 'scsi_done()' for unhandled commandsHannes Reinecke1-2/+1
The fnic drivers assigns an ioreq structure to each command and severs this assignment once scsi_done() has been called and the command has been completed. When traversing commands to terminate outstanding I/O we should not call scsi_done() on commands which do not have a corresponding ioreq structure; these commands have either never entered the driver or have already been completed. [mkp: fixed unused label warning] Link: https://lore.kernel.org/r/20200515112647.49260-1-hare@suse.de Reported-by: kbuild test robot <lkp@intel.com> Reviewed-by: Laurence Oberman <loberman@redhat.com> Acked-by: Satish Kharat <satishkh@cisco.com> Acked-by: Karan Tilak Kumar <kartilak@cisco.com> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: ufs: Fix missing brace warning for old compilersPujin Shi1-2/+2
For older versions of gcc, the array = {0}; will cause warnings: drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_crypto_keyslot_program': drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: missing braces around initializer [-Wmissing-braces] union ufs_crypto_cfg_entry cfg = { 0 }; ^ drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: (near initialization for 'cfg.reg_val') [-Wmissing-braces] drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_clear_keyslot': drivers/scsi/ufs/ufshcd-crypto.c:103:8: warning: missing braces around initializer [-Wmissing-braces] union ufs_crypto_cfg_entry cfg = { 0 }; ^ 2 warnings generated Link: https://lore.kernel.org/r/20201002063538.1250-1-shipujin.t@gmail.com Fixes: 70297a8ac7a7 ("scsi: ufs: UFS crypto API") Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Pujin Shi <shipujin.t@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: qla2xxx: Fix inconsistent format argument type in qla_dbg.cYe Bin1-1/+1
Fix the following warning: [drivers/scsi/qla2xxx/qla_dbg.c:2451]: (warning) %ld in format string (no. 4) requires 'long' but the argument type is 'unsigned long'. Link: https://lore.kernel.org/r/20200930022515.2862532-4-yebin10@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: qla2xxx: Fix inconsistent format argument type in qla_os.cYe Bin1-2/+2
Fix the following warnings: [drivers/scsi/qla2xxx/qla_os.c:4882]: (warning) %ld in format string (no. 2) requires 'long' but the argument type is 'unsigned long'. [drivers/scsi/qla2xxx/qla_os.c:5011]: (warning) %ld in format string (no. 1) requires 'long' but the argument type is 'unsigned long'. Link: https://lore.kernel.org/r/20200930022515.2862532-3-yebin10@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: qla2xxx: Fix inconsistent format argument type in tcm_qla2xxx.cYe Bin1-1/+1
Fix the following warnings: [drivers/scsi/qla2xxx/tcm_qla2xxx.c:884]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:885]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:886]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:887]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:888]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. Link: https://lore.kernel.org/r/20200930022515.2862532-2-yebin10@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: sd: Allow user to configure command retriesMike Christie2-30/+72
Some iSCSI targets went with the traditional "export N ports" approach and then allowed the initiator to multipath over them. Other targets went the opposite direction and export a single port, and then software on the target side performs load balancing and failover to other targets via an iSCSI specific feature or IP takover. The problem for the 2nd type of config is we quickly run out of our five retries and get I/O errors. In these setups we want to reduce resource use on the initiator side so we only wanted the one session and no dm-multipath. To handle traditional multipath operations like failover we do IP takover on the target side. So we would have an iSCSI target running on node1. Some monitoring software decides it's dead or the node is overloaded so it starts the iSCSI target on node2. The problem is for the failover case where we might have the equivalent of a dm-multipath temporary all paths down, or we just have to try more than 5 nodes before finding a good one. To handle this type of issue allow the user to configure the disk cmd retries from -1 to the current max of 5. -1 means infinite retries and should be used for setups where some other setting is going to control when to fail. For example iSCSI has the replacement/recovery timeout and fc (some users have used FC with NPIV and done something similar as IP takover) has dev_loss_tmo/fast_io_fail which will eventually expire and fail I/O. Link: https://lore.kernel.org/r/1601566554-26752-3-git-send-email-michael.christie@oracle.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-03scsi: core: Add limitless cmd retry supportMike Christie3-20/+43
Add infinite retry support to SCSI midlayer by combining common checks for retries into some helper functions, and then checking for the -1/SCSI_CMD_RETRIES_NO_LIMIT. Link: https://lore.kernel.org/r/1601566554-26752-2-git-send-email-michael.christie@oracle.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Update version to 10.02.00.103-kNilesh Javali1-2/+2
Link: https://lore.kernel.org/r/20200929102152.32278-8-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Fix point-to-point (N2N) device discovery issueArun Easi3-1/+6
Driver was using a shorter timeout waiting for PLOGI from the peer in point-to-point configurations. Some devices takes some time (~4 seconds) to initiate the PLOGI. This peer initiating PLOGI is when the peer has a higher P-WWN. Increase the wait time based on N2N R_A_TOV. Link: https://lore.kernel.org/r/20200929102152.32278-7-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Fix crash on session cleanup with unloadQuinn Tran1-6/+7
On unload, session cleanup prematurely gave the signal for driver unload path to advance. Link: https://lore.kernel.org/r/20200929102152.32278-6-njavali@marvell.com Fixes: 726b85487067 ("qla2xxx: Add framework for async fabric discovery") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Fix reset of MPI firmwareArun Easi4-39/+23
Normally, the MPI firmware is reset when an MPI dump is collected. If an unsaved MPI dump exists in the driver, though, an alternate mechanism is used. This mechanism, which was not fully correct, is not recommended and instead an MPI dump template walk is suggested to perform the MPI reset. To allow for the MPI dump template walk, extra space is reserved in the MPI dump buffer which gets used only when there is already an MPI dump in place. Link: https://lore.kernel.org/r/20200929102152.32278-5-njavali@marvell.com Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Fix MPI reset needed messageArun Easi1-1/+1
When printing the message: "MPI Heartbeat stop. MPI reset is not needed.." ..the wrong register was checked leading to always printing that MPI reset is not needed, even when it is needed. Fix the MPI reset message. Link: https://lore.kernel.org/r/20200929102152.32278-4-njavali@marvell.com Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Fix buffer-buffer credit extraction errorQuinn Tran5-81/+34
Current code uses wrong mailbox option to extract bbc from firmware. This field is nested inside of PLOGI payload. Extract bbc from PLOGI template payload. Link: https://lore.kernel.org/r/20200929102152.32278-3-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: qla2xxx: Correct the check for sscanf() return valueSaurav Kashyap1-2/+2
Since the version string has been modified, sscanf() returns 4 instead of 6. Link: https://lore.kernel.org/r/20200929102152.32278-2-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-30scsi: ufs: ufs-exynos: Use devm_platform_ioremap_resource_byname()Bean Huo1-7/+3
Use devm_platform_ioremap_resource_byname() to simplify the code. Link: https://lore.kernel.org/r/20200916084017.14086-1-huobean@gmail.com Acked-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: ufs-mediatek: Support performance mode for inline encryption engineStanley Chu2-6/+199
Some MediaTek UFS platforms support high-performance mode that inline encryption engine can be boosted while UFS is not clock-gated. The high-performance mode will be enabled if all below conditions are well-declaired in device tree, - Proper platform-specific compatible string which enables the host capability "UFS_MTK_CAP_BOOST_CRYPT_ENGINE". - "dvfsrc-vcore" node is available in this platform. - Required minimum vcore voltage for high-performance mode. - Clock mux and clock parents of inline encryption engine for both "low-power mode" and "high-performance mode". Link: https://lore.kernel.org/r/20200914050052.3974-2-stanley.chu@mediatek.com Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: libsas: Simplify the return expression of sas_discover_* functionsLiu Shixin2-14/+2
Simplify the return expression. Link: https://lore.kernel.org/r/20200921134558.3478922-1-liushixin2@huawei.com Reviewed-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: oak: Remove redundant initialization of variable retJing Xiangfeng1-1/+1
No point in initializing ret with -ENOMEM. Link: https://lore.kernel.org/r/20200918090747.44645-1-jingxiangfeng@huawei.com Acked-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: bnx2i: Remove unnecessary mutex_init()Qinglang Miao1-2/+0
The mutex bnx2i_dev_lock is initialized statically. It is unnecessary to initialize by mutex_init(). Link: https://lore.kernel.org/r/20200916062133.191000-1-miaoqinglang@huawei.com Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Update version to 10.02.00.102-kNilesh Javali2-4/+3
Update internal driver version and remove module version macro. Link: https://lore.kernel.org/r/20200904045128.23631-14-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Add SLER and PI control supportSaurav Kashyap7-5/+45
BIT_13 of extended FW attribute informs about NVMe-2 support. Set BIT_15 of special feature control block for enabling SLER in FW. Set bit 8 (SLER supported) to 1 for the service parameter information when sending NVMe PRLI request. Set BIT_14 of special feature control block for enabling PI Control in FW. Driver should set bit 9 (PI Control supported) to 1 for the service parameter information when sending NVMe PRLI request. Set BIT_13 for NVMe Async events. Link: https://lore.kernel.org/r/20200904045128.23631-13-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Add IOCB resource trackingQuinn Tran8-0/+151
This patch tracks number of IOCB resources used in the I/O fast path. If the number of used IOCBs reach a high water limit, driver would return the I/O as busy and let upper layer retry. This prevents over subscription of IOCB resources where any future error recovery command is unable to cut through. Enable IOCB throttling by default. Link: https://lore.kernel.org/r/20200904045128.23631-12-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Add rport fields in debugfsArun Easi1-0/+53
This patch adds rport fields in debugfs. Link: https://lore.kernel.org/r/20200904045128.23631-11-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Make tgt_port_database available in initiator modeArun Easi1-32/+32
tgt_port_database data is today exported only in target mode, allow it to be shown in initiator mode as well. Link: https://lore.kernel.org/r/20200904045128.23631-10-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Fix I/O errors during LIP reset testsArun Easi1-0/+8
In .fcp_io(), returning ENODEV as soon as remote port delete has started can cause I/O errors. Fix this by returning EBUSY until the remote port delete finishes. Link: https://lore.kernel.org/r/20200904045128.23631-9-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Performance tweakQuinn Tran8-39/+91
Move statistics fields from vha struct to qpair to reduce memory thrashing. Link: https://lore.kernel.org/r/20200904045128.23631-8-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Fix memory size truncationQuinn Tran3-6/+8
Memory size calculations for Extended Login used in hardware offload got truncated. Fix this by changing definition of exlogin_size to use uint32_t. Link: https://lore.kernel.org/r/20200904045128.23631-7-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Reduce duplicate code in reporting speedQuinn Tran4-137/+9
Indicate correct speed for 16G Mezz card. Link: https://lore.kernel.org/r/20200904045128.23631-6-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Honor status qualifier in FCP_RSP per specArun Easi3-18/+40
FCP-4 (referred FCP-4 rev-2b) identifies the earlier known "retry delay timer" field as "status qualifier", which is described in SAM-5 and later specs. This fix makes appropriate driver side modifications to honor the new definition. The SAM document referred was SAM-6 rev-5. Link: https://lore.kernel.org/r/20200904045128.23631-5-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Allow dev_loss_tmo setting for FC-NVMe devicesArun Easi1-0/+58
Add a remote port debugfs entry to get/set dev_loss_tmo for NVMe devices. Link: https://lore.kernel.org/r/20200904045128.23631-4-njavali@marvell.com Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Setup debugfs entries for remote portsArun Easi5-1/+51
Create a base for adding remote port related entries in debugfs. Link: https://lore.kernel.org/r/20200904045128.23631-3-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: qla2xxx: Fix I/O failures during remote port toggle testingArun Easi2-4/+1
Driver was using a lower value for dev_loss_tmo making it more prone to I/O failures during remote port toggle testing. Set dev_loss_tmo to zero during remote port registration to allow nvme-fc default dev_loss_tmo to be used, which is higher than what driver was using. Link: https://lore.kernel.org/r/20200904045128.23631-2-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: ibmvfc: Protect vhost->task_set increment by the host lockBrian King1-1/+1
In the discovery thread, ibmvfc does a vhost->task_set++ without any lock held. This could result in two targets getting the same cancel key, which could have strange effects in error recovery. The actual probability of this occurring should be extremely small, since this should all be done in a single threaded loop from the discovery thread, but let's fix it up anyway to be safe. Link: https://lore.kernel.org/r/1600286999-22059-1-git-send-email-brking@linux.vnet.ibm.com Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: target: tcmu: Optimize scatter_data_area()Bodo Stroesser1-76/+63
scatter_data_area() has two purposes: 1) Create the iovs for the data area buffer of a SCSI cmd. 2) If there is data in DMA_TO_DEVICE direction, copy the data from sg_list to data area buffer. Both are done in a common loop. In case of DMA_FROM_DEVICE data transfer, scatter_data_area() is called with parameter copy_data = false. But this flag is just used to skip memcpy() for data, while radix_tree_lookup still is called for every dbi of the area area buffer, and kmap and kunmap are called for every page from sg_list and data_area as well as flush_dcache_page() for the data area pages. Since the only thing to do with copy_data = false would be to set up the iovs, this is a noticeable overhead. Rework the iov creation in the main loop of scatter_data_area() providing the new function new_block_to_iov(). Based on this, create the short new function tcmu_setup_iovs() that only writes the iovs with no overhead. This new function is now called instead of scatter_data_area() for bidi buffers and for data buffers in those cases where memcpy() would have been skipped. Link: https://lore.kernel.org/r/20200910155041.17654-4-bstroesser@ts.fujitsu.com Acked-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: target: tcmu: Optimize queue_cmd_ring()Bodo Stroesser1-82/+102
queue_cmd_ring() needs to check whether there is enough space in cmd ring and data area for the cmd to queue. Currently the sequence is: 1) Calculate size the cmd will occupy on the ring based on estimation of needed iovs. 2) Check whether there is enough space on the ring based on size from 1) 3) Allocate buffers in data area. 4) Calculate number of iovs the command really needs while copying incoming data (if any) to data area. 5) Re-calculate real size of cmd on ring based on real number of iovs. 6) Set up possible padding and cmd on the ring. Step 1) must not underestimate the cmd size so use max possible number of iovs for the given I/O data size. The resulting overestimation can be really high so this sequence is not ideal. The earliest the real number of iovs can be calculated is after data buffer allocation. Therefore rework the code to implement the following sequence: A) Allocate buffers on data area and calculate number of necessary iovs during this. B) Calculate real size of cmd on ring based on number of iovs. C) Check whether there is enough space on the ring. D) Set up possible padding and cmd on the ring. The new sequence enforces the split of new function tcmu_alloc_data_space() from is_ring_space_avail(). Using this function, change queue_cmd_ring() according to the new sequence. Change routines called by tcmu_alloc_data_space() to allow calculating and returning the iov count. Remove counting of iovs in scatter_data_area(). Link: https://lore.kernel.org/r/20200910155041.17654-3-bstroesser@ts.fujitsu.com Acked-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-23scsi: target: tcmu: Join tcmu_cmd_get_data_length() and tcmu_cmd_get_block_cnt()Bodo Stroesser1-30/+23
Simplify code by joining tcmu_cmd_get_data_length() and tcmu_cmd_get_block_cnt() into tcmu_cmd_set_block_cnts(). The new function sets tcmu_cmd->dbi_cnt and also the new field tcmu_cmd->dbi_bidi_cnt which is needed for further enhancements in following patches. Simplify some code by using tcmu_cmd->dbi(_bidi)_cnt instead of calculation from length. Please note: The calculation of the number of dbis needed for bidi was wrong. It was based on the length of the first bidi sg only. I changed it to correctly sum up entire length of all bidi sgs. Link: https://lore.kernel.org/r/20200910155041.17654-2-bstroesser@ts.fujitsu.com Acked-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: core: Only re-run queue in scsi_end_request() if device queue is busyMing Lei1-4/+44
The request queue is currently run unconditionally in scsi_end_request() if both target queue and host queue are ready. Recently Long Li reported that cost of a queue run can be very heavy in case of high queue depth. Improve this situation by only running the request queue when this LUN is busy. Link: https://lore.kernel.org/r/20200910075056.36509-1-ming.lei@redhat.com Reported-by: Long Li <longli@microsoft.com> Tested-by: Long Li <longli@microsoft.com> Tested-by: Kashyap Desai <kashyap.desai@broadcom.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Reviewed-by: John Garry <john.garry@huawei.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: aic7xxx: Use kmemdup() in two placesAlex Dewar2-4/+2
kmemdup() can be used instead of kmalloc()+memcpy(). Replace two occurrences of this pattern. Issue identified with Coccinelle. Link: https://lore.kernel.org/r/20200909185855.151964-1-alex.dewar90@gmail.com Signed-off-by: Alex Dewar <alex.dewar90@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: virtio_scsi: Rescan the entire target on transport reset when LUN is 0Matej Genci1-1/+6
VirtIO 1.0 spec says: The removed and rescan events ... when sent for LUN 0, they MAY apply to the entire target so the driver can ask the initiator to rescan the target to detect this. This change introduces the behaviour described above by scanning the entire SCSI target when LUN is set to 0. This is both a functional and a performance fix. It aligns the driver with the spec and allows control planes to hotplug targets with large numbers of LUNs without having to request a RESCAN for each one of them. Link: https://lore.kernel.org/r/CY4PR02MB33354370E0A81E75DD9DFE74FB520@CY4PR02MB3335.namprd02.prod.outlook.com Suggested-by: Felipe Franciosi <felipe@nutanix.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Matej Genci <matej.genci@nutanix.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: myrb: Make some symblos staticJason Yan1-3/+3
This addresses the following sparse warning: drivers/scsi/myrb.c:2229:27: warning: symbol 'myrb_template' was not declared. Should it be static? drivers/scsi/myrb.c:2318:31: warning: symbol 'myrb_raid_functions' was not declared. Should it be static? drivers/scsi/myrb.c:2492:6: warning: symbol 'myrb_err_status' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084018.2826922-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: myrs: Make some symbols staticJason Yan1-4/+4
This addresses the following sparse warning: drivers/scsi/myrs.c:1532:5: warning: symbol 'myrs_host_reset' was not declared. Should it be static? drivers/scsi/myrs.c:1922:27: warning: symbol 'myrs_template' was not declared. Should it be static? drivers/scsi/myrs.c:2036:31: warning: symbol 'myrs_raid_functions' was not declared. Should it be static? drivers/scsi/myrs.c:2046:6: warning: symbol 'myrs_flush_cache' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084008.2826835-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: isci: Make scu_link_layer_set_txcomsas_timeout() staticJason Yan1-1/+1
This addresses the following sparse warning: drivers/scsi/isci/phy.c:672:6: warning: symbol 'scu_link_layer_set_txcomsas_timeout' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084000.2826741-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: bnx2fc: Make a bunch of symbols static in bnx2fc_fcoe.cJason Yan1-5/+5
This eliminates the following sparse warning: drivers/scsi/bnx2fc/bnx2fc_fcoe.c:53:1: warning: symbol 'bnx2fc_global_lock' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:111:6: warning: symbol 'bnx2fc_devloss_tmo' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:116:6: warning: symbol 'bnx2fc_max_luns' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:121:6: warning: symbol 'bnx2fc_queue_depth' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:126:6: warning: symbol 'bnx2fc_log_fka' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033758.142601-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: isci: Make isci_host_attrs staticJason Yan1-1/+1
This eliminates the following sparse warning: drivers/scsi/isci/init.c:145:25: warning: symbol 'isci_host_attrs' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033741.142415-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: aacraid: Make some symbols static in aachba.cJason Yan1-3/+3
This eliminates the following sparse warning: drivers/scsi/aacraid/aachba.c:245:5: warning: symbol 'aac_convert_sgl' was not declared. Should it be static? drivers/scsi/aacraid/aachba.c:293:5: warning: symbol 'acbsize' was not declared. Should it be static? drivers/scsi/aacraid/aachba.c:324:5: warning: symbol 'aac_wwn' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033749.142488-1-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-16scsi: sym53c8xx_2: Delete unnecessary else-if in sym_xerr_cam_status()Ye Bin1-5/+1
If (x_status & XE_PARITY_ERR) is true we set cam_status = DID_PARITY, othervise cam_status always ends up being DID_ERROR. Delete superfluous else-if statements. Link: https://lore.kernel.org/r/20200902061646.576966-1-yebin10@huawei.com Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-10 17:51:30 +0300