- 16 Jun, 2021 2 commits
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Michael Kelley authored
When an I/O error is reported by the underlying Hyper-V host, current code provides details only when the logging level is set to WARN, making it more difficult to diagnose problems in live customer situations. Fix this by reporting details at ERROR level, which is the default. Also add more information, including the Hyper-V error code, and the tag # so that the message can be matched with messages at the SCSI and blk-mq levels. Also, sense information logging is inconsistent and duplicative. The existence of sense info is first logged at WARN level, and then full sense info is logged at ERROR level. Fix this by removing the logging of the existence of sense info, and change the logging of full sense info to WARN level in favor of letting the generic SCSI layer handle such logging. With the change to WARN level, it's no longer necessary to filter out as noise any NOT READY sense info generated by the virtual DVD device. Link: https://lore.kernel.org/r/1622827263-12516-2-git-send-email-mikelley@microsoft.comSigned-off-by:
Michael Kelley <mikelley@microsoft.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Michael Kelley authored
As general cleanup and in preparation for subsequent patches: - Use min() instead of open coding. - Use set_host_byte() instead of open coding access to scsi_status field. - Collapse nested "if" statements to reduce indentation. - Fix other indentation. - Remove extra blank lines. No functional changes. [mkp: dropped status_byte() which no longer exists] Link: https://lore.kernel.org/r/1622827263-12516-1-git-send-email-mikelley@microsoft.comSigned-off-by:
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- 10 Jun, 2021 30 commits
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Gaurav Srivastava authored
Introduce the VMID in the I/O path. Check if the VMID is enabled and if the I/O belongs to a VM or not. Link: https://lore.kernel.org/r/20210608043556.274139-14-muneendra.kumar@broadcom.comReviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
Gaurav Srivastava <gaurav.srivastava@broadcom.com> Signed-off-by:
James Smart <jsmart2021@gmail.com> Signed-off-by:
Muneendra Kumar <muneendra.kumar@broadcom.com> Signed-off-by:
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Gaurav Srivastava authored
Add a periodic check for issuing of QFPA command and VMID timeout in the worker thread. The inactivity timeout check is added via the timer function. Link: https://lore.kernel.org/r/20210608043556.274139-13-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Implement timeout functionality for the VMID. After the set time period of inactivity, the VMID is deregistered from the switch. Link: https://lore.kernel.org/r/20210608043556.274139-12-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Add the VMID in wqe before sending out the request. The type of VMID depends on the configured type and is checked before being appended. Link: https://lore.kernel.org/r/20210608043556.274139-11-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Implement CT commands for registering and deregistering the appid for the application. Also, a small change in decrementing the ndlp ref counter has been added. Link: https://lore.kernel.org/r/20210608043556.274139-10-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Implement routines to save, retrieve, and remove the VMIDs from the data structure. A hash table is used to save the VMIDs and the corresponding UUIDs associated with the application/VMs. Link: https://lore.kernel.org/r/20210608043556.274139-9-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Implement ELS commands QFPA and UVEM for the priority tagging appid support. Link: https://lore.kernel.org/r/20210608043556.274139-8-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Add supporting datastructures for mailbox command which helps in determining if the firmware supports appid. Allocate resources for VMID at initialization time and clean them up on removal. Link: https://lore.kernel.org/r/20210608043556.274139-7-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Initialize parameters such as type of VMID, max number of VMIDs supported and timeout value for the VMID registration based on the user input. Link: https://lore.kernel.org/r/20210608043556.274139-6-muneendra.kumar@broadcom.comReviewed-by:
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Gaurav Srivastava authored
Add the primary datastructures needed to implement VMID in the lpfc driver. Maintain the capability, current state, and hash table for the vmid/appid along with other information. This implementation supports the two versions of vmid implementation (app header and priority tagging). Link: https://lore.kernel.org/r/20210608043556.274139-5-muneendra.kumar@broadcom.comReviewed-by:
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Muneendra Kumar authored
Add a new sysfs attribute, appid_store, which can be used to set the application identifier in the blkcg associated with a cgroup id. Below is the interface provided to set the app_id: echo "<cgroupid>:<appid>" >> /sys/class/fc/fc_udev_device/appid_store echo "457E:100000109b521d27" >> /sys/class/fc/fc_udev_device/appid_store Link: https://lore.kernel.org/r/20210608043556.274139-4-muneendra.kumar@broadcom.comReviewed-by:
Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by:
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Muneendra Kumar authored
Add a unique application identifier (i.e fc_app_id member) in blkcg. This allows identification of traffic belonging to an specific both on the host and in the fabric infrastructure. As an example, this allows the storage stack to uniquely identify traffic belong to particular virtual machine. Link: https://lore.kernel.org/r/20210608043556.274139-3-muneendra.kumar@broadcom.comReviewed-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Muneendra Kumar authored
Add a new function, cgroup_get_from_id(), to retrieve the cgroup associated with a cgroup id. Also export the function cgroup_get_e_css() as this is needed in blk-cgroup.h. Link: https://lore.kernel.org/r/20210608043556.274139-2-muneendra.kumar@broadcom.comReviewed-by:
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Javed Hasan authored
Added RHBA and RPA attributes type and length. As per FC_GC_7 document section "Table 400 – Attribute Entry Types and associated Values" ASCII type attributes length can be vary from "4 to 256 byte". If we keep all RHBA ASCII attributes length 256 then total length is going upto 2750, which is far more than 2048 (max frame size). In libfc we do have logic to split FCP commands but not for CT commands. Practically all version/names get covered with in 64 bytes except OS name, for that we need 128 bytes. Hence length of all RBHA ASCII attributes is reduced to 64 bytes and 128 bytes in case of OS name. RPA attributes total length is within frame size. Link: https://lore.kernel.org/r/20210603121623.10084-6-jhasan@marvell.comReviewed-by:
Javed Hasan <jhasan@marvell.com> Signed-off-by:
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Javed Hasan authored
Add all the attributes for FDMI. Fall back mechanism is added in between FDMI V2 and FDMI V1 attributes. In case FDMI get fails for V2 attributes we fall back to V1 attributes. Link: https://lore.kernel.org/r/20210603121623.10084-5-jhasan@marvell.comReviewed-by:
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Javed Hasan authored
Add all attributes for RHBA and RPA registration. Fallback mechanism is added between RBHA V2 and RHBA V1 attributes. In case RHBA get fails for V2 attributes we fall back to V1 attribute registration. Link: https://lore.kernel.org/r/20210603121623.10084-4-jhasan@marvell.comReviewed-by:
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Javed Hasan authored
Link: https://lore.kernel.org/r/20210603121623.10084-3-jhasan@marvell.comReviewed-by:
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Javed Hasan authored
Initialize RHBA and RPA attributes. Link: https://lore.kernel.org/r/20210603121623.10084-2-jhasan@marvell.comReviewed-by:
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Javed Hasan authored
Incorrect condition check was leading to data corruption. Link: https://lore.kernel.org/r/20210603101404.7841-3-jhasan@marvell.com Fixes: 8fd9efca ("scsi: libfc: Work around -Warray-bounds warning") CC: stable@vger.kernel.org Reviewed-by:
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Javed Hasan authored
As per the FC-GS-5 specification, attribute lengths of node_name and manufacturer should in range of "4 to 64 Bytes" only. Link: https://lore.kernel.org/r/20210603101404.7841-2-jhasan@marvell.com Fixes: e721eb06 ("scsi: scsi_transport_fc: Match HBA Attribute Length with HBAAPI V2.0 definitions") CC: stable@vger.kernel.org Reviewed-by:
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Luo Jiaxing authored
If an internal task abort timeout occurs, the controller has developed a fault, and needs to be reset to be recovered. When this occurs during error handling, the current policy is to allow error handling to continue, and the inevitable nexus ha reset will handle the required reset. However various steps of error handling need to taken before this happens. These also involve some level of HW interaction, which will also fail with various timeouts. Speed up this process by recording a HW fault bit for an internal abort timeout - when this is set, just automatically error any HW interaction, and essentially go straight to clear nexus ha (to reset the controller). Link: https://lore.kernel.org/r/1623058179-80434-6-git-send-email-john.garry@huawei.comSigned-off-by:
Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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Luo Jiaxing authored
If an internal task abort timeout occurs, the controller has developed a fault, and needs to be reset to be recovered. However if a timeout occurs during SCSI error handling, issuing a controller reset immediately may conflict with the error handling. To handle internal abort in these two scenarios, only queue the reset when not in an error handling function. In the case of a timeout during error handling, do nothing and rely on the inevitable ha nexus reset to reset the controller. Link: https://lore.kernel.org/r/1623058179-80434-5-git-send-email-john.garry@huawei.comSigned-off-by:
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Luo Jiaxing authored
Include HZ in timer macros to make the code more concise. Link: https://lore.kernel.org/r/1623058179-80434-4-git-send-email-john.garry@huawei.comSigned-off-by:
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Luo Jiaxing authored
For a clear nexus reset operation, the I_T nexus resets are executed serially for each device. For devices attached through an expander, this may take 2s per device; so, in total, could take a long time. Reduce the total time by running the I_T nexus resets in parallel through async operations. Link: https://lore.kernel.org/r/1623058179-80434-3-git-send-email-john.garry@huawei.comSigned-off-by:
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Luo Jiaxing authored
If an OOB event is received but the phy still fails to come up, a link reset will be issued repeatedly at an interval of 20s until the phy comes up. Set a limit for link reset issue retries to avoid printing the timeout message endlessly. Link: https://lore.kernel.org/r/1623058179-80434-2-git-send-email-john.garry@huawei.comSigned-off-by:
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Mike Christie authored
qedi_clear_session_ctx() could race with the in-kernel or userspace driven recovery/removal and we could access a NULL conn or do a double free. We should be using iscsi_host_remove() to start the removal process from the driver. It will start the in-kernel recovery and notify userspace that the driver's scsi_hosts are being removed. iscsid will then drive the session removal like is done when the logout command is run. When the sessions are removed, iscsi_host_remove() will return so qedi can finish knowing there are no running sessions and no new sessions will be allowed. This also fixes an issue where we check for a NULL conn after already accessing it introduced in commit 27e98628 ("scsi: iscsi: Drop suspend calls from ep_disconnect") by just removing the function completely. Link: https://lore.kernel.org/r/20210609192709.5094-1-michael.christie@oracle.com Fixes: 27e98628 ("scsi: iscsi: Drop suspend calls from ep_disconnect") Signed-off-by:
Mike Christie <michael.christie@oracle.com> Signed-off-by:
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Dan Carpenter authored
The pci_alloc_irq_vectors_affinity() function returns negative error codes or it returns a number between the minimum vectors (1 in this case) and max_vectors. It won't return zero. Because "i" is a u16 then the error handling won't work. And also if it did work the error code was not set. Really "max_vectors" can be an int as well because we're doing a min_t() on int type. The other change is that it's better to remove unnecessary initialization so that static checkers can warn us if there are ever uninitialized variable bugs introduced in the future. I changed the error code from -1 (-EPERM) if the kmalloc() failed to -ENOMEM. And on success path I changed it from "return retval;" to "return 0;" which shouldn't affect the compiled code but makes it more readable. Link: https://lore.kernel.org/r/YMCJcnmSI4kOIyv/@mwanda Fixes: 824a1566 ("scsi: mpi3mr: Base driver code") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Dan Carpenter authored
The "mrioc->intr_info" pointer can't be NULL, but if it could then the second iteration through the loop would Oops. Let's delete the confusing and impossible NULL check. Link: https://lore.kernel.org/r/YMCJKgykDYtyvY44@mwandaSigned-off-by:
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Tomas Henzl authored
Fix a double free, scsi_tgt_priv_data will be freed in mpi3mr_target_destroy() so remove the kfree() from mpi3mr_target_alloc(). I've also removed few unneeded initialisations. Link: https://lore.kernel.org/r/20210608145712.16386-1-thenzl@redhat.comAcked-by:
Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Can Guo authored
In ufshcd_exec_dev_cmd(), if error happens before lrpb is initialized, then we should bail out instead of letting trace record the error. Link: https://lore.kernel.org/r/1623227044-22635-1-git-send-email-cang@codeaurora.org Fixes: a45f9371 ("scsi: ufs: Optimize host lock on transfer requests send/compl paths") Reported-by:
kernel test robot <lkp@intel.com> Reviewed-by:
Stanley Chu <stanley.chu@mediatek.com> Reviewed-by:
Nathan Chancellor <nathan@kernel.org> Signed-off-by:
Can Guo <cang@codeaurora.org> Signed-off-by:
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- 08 Jun, 2021 8 commits
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Bean Huo authored
Since devman_upiu_cmd() is not COMMAND UPIU, and doesn't have CDB, it is better to use UPIU query trace, which provides more helpful information for issue troubleshooting. Link: https://lore.kernel.org/r/20210531104308.391842-5-huobean@gmail.comReviewed-by:
Bean Huo <beanhuo@micron.com> Signed-off-by:
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Bean Huo authored
For the query request, we already have query_trace, but in ufshcd_send_command(), there will add two more redundant traces. Since lrbp->cmd is NULL in the query request, the two trace events below provide nothing except the tag and DB. Instead of letting them take up the limited trace ring buffer, it’s better not to print these traces in case of cmd == NULL. ufshcd_command: send_req: ff3b0000.ufs: tag: 28, DB: 0x0, size: -1, IS: 0, LBA: 18446744073709551615, opcode: 0x0 (0x0), group_id: 0x0 ufshcd_command: dev_complete: ff3b0000.ufs: tag: 28, DB: 0x0, size: -1, IS: 0, LBA: 18446744073709551615, opcode: 0x0 (0x0), group_id: 0x0 Link: https://lore.kernel.org/r/20210531104308.391842-4-huobean@gmail.comReviewed-by:
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Bean Huo authored
The current UPIU completion event trace still prints the COMMAND UPIU header, rather than the RSP UPIU header. This makes UPIU command trace useless in problem shooting in case we receive a trace log from the customer/field. There are two important fields in RSP UPIU: 1. The response field, which indicates the UFS defined overall success or failure of the series of Command, Data and RESPONSE UPIU’s that make up the execution of a task. 2. The Status field, which contains the command set specific status for a specific command issued by the initiator device. Before this commit, the UPIU paired trace events: ufshcd_upiu: send_req: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00 ufshcd_upiu: complete_rsp: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00 After this commit: ufshcd_upiu: send_req: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00 ufshcd_upiu: complete_rsp: fe3b0000.ufs: HDR:21 00 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00 Link: https://lore.kernel.org/r/20210531104308.391842-3-huobean@gmail.comReviewed-by: -
Bean Huo authored
To consistent with trace event print, convert the value of the variable 'lba' from a block layer sector address to a logical block adress. Link: https://lore.kernel.org/r/20210531104308.391842-2-huobean@gmail.comSuggested-by:
Bart Van Assche <bvanassche@acm.org> Reviewed-by:
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Keoseong Park authored
Remove repeated word "for" in comment. Link: https://lore.kernel.org/r/1891546521.01622777101796.JavaMail.epsvc@epcpadp3Signed-off-by:
Keoseong Park <keosung.park@samsung.com> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enable -Wimplicit-fallthrough for Clang, fix a fall-through warning by explicitly adding a break statement instead of just letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Link: https://lore.kernel.org/r/20210604023530.GA180997@embeddedorReviewed-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enable -Wimplicit-fallthrough for Clang, fix a fall-through warning by replacing a /* fallthrough */ comment with the new pseudo-keyword macro fallthrough; Link: https://github.com/KSPP/linux/issues/115 Link: https://lore.kernel.org/r/20210604022752.GA168289@embeddedorReviewed-by:
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Can Guo authored
By reading the UTP Transfer Request List Completion Notification Register, which is added in UFSHCI Ver 3.0, SW can easily get the compeleted transfer requests. Thus, SW can get rid of host lock, which is used to synchronize the tr_doorbell and outstanding_reqs, on transfer requests dispatch and completion paths. This can further benefit random read/write performance. Link: https://lore.kernel.org/r/1621845419-14194-4-git-send-email-cang@codeaurora.org Cc: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by:
Asutosh Das <asutoshd@codeaurora.org> Signed-off-by:
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