summaryrefslogtreecommitdiff
path: root/drivers
AgeCommit message (Collapse)AuthorFilesLines
2017-03-28scsi: be2iscsi: Increase HDQ default queue sizeJitendra Bhivare2-16/+17
Currently, ASYNC PDU default queue size is set to max connections. This leaves only one buffer per connection for any ASYNC PDUs from targets. Double the size of the default queue. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: scsi_transport_iscsi: Use flush_work in iscsi_remove_sessionJitendra Bhivare1-2/+1
scsi_flush_work flushes workqueue for the Scsi_Host. In iSCSI offload enabled host, this would wait for all other sessions under the host. Use flush_work for the session being removed instead. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: be2iscsi: Replace spin_unlock_bh with spin_lockJitendra Bhivare1-1/+1
spin_unlock_bh back_lock is used in beiscsi_eh_device_reset instead of spin_lock. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: be2iscsi: Fix closing of connectionJitendra Bhivare5-160/+159
CID needs to be freed even when invalidate or upload connection fails. Attempt to close connection 3 times before freeing CID. Set cleanup_type to INVALIDATE instead of force TCP_RST. This unnecessarily is terminating connection with reset instead of gracefully closing it. Set save_cfg to 0 - session not to be saved on flash. Add delay and process CQ before uploading connection. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: be2iscsi: Check tag in beiscsi_mccq_compl_waitJitendra Bhivare1-0/+6
scsi host12: BS_1377 : mgmt_invalidate_connection Failed for cid=256 BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff81332ebf>] __list_add+0xf/0xc0 PGD 0 Oops: 0000 [#1] SMP Modules linked in: ... CPU: 9 PID: 1542 Comm: iscsid Tainted: G ------------ T 3.10.0-514.el7.x86_64 #1 Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 09/12/2016 task: ffff88076f310fb0 ti: ffff88076bba8000 task.ti: ffff88076bba8000 RIP: 0010:[<ffffffff81332ebf>] [<ffffffff81332ebf>] __list_add+0xf/0xc0 RSP: 0018:ffff88076bbab8e8 EFLAGS: 00010046 RAX: 0000000000000246 RBX: ffff88076bbab990 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff880468badf58 RDI: ffff88076bbab990 RBP: ffff88076bbab900 R08: 0000000000000246 R09: 00000000000020de R10: 0000000000000000 R11: ffff88076bbab5be R12: 0000000000000000 R13: ffff880468badf58 R14: 000000000001adb0 R15: ffff88076f310fb0 FS: 00007f377124a880(0000) GS:ffff88046fa40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 0000000771318000 CR4: 00000000001407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Stack: ffff88076bbab990 ffff880468badf50 0000000000000001 ffff88076bbab938 ffffffff810b128b 0000000000000246 00000000cf9b7040 ffff880468bac7a0 0000000000000000 ffff880468bac7a0 ffff88076bbab9d0 ffffffffa05a6ea3 Call Trace: [<ffffffff810b128b>] prepare_to_wait+0x7b/0x90 [<ffffffffa05a6ea3>] beiscsi_mccq_compl_wait+0x153/0x330 [be2iscsi] [<ffffffff810b1600>] ? wake_up_atomic_t+0x30/0x30 [<ffffffffa05981b1>] beiscsi_ep_disconnect+0x91/0x2d0 [be2iscsi] [<ffffffffa0202ffa>] iscsi_if_ep_disconnect.isra.14+0x5a/0x70 [scsi_transport_iscsi] [<ffffffffa02042fb>] iscsi_if_recv_msg+0x113b/0x14a0 [scsi_transport_iscsi] [<ffffffff811dffd8>] ? __kmalloc_node_track_caller+0x58/0x290 [<ffffffffa02046ee>] iscsi_if_rx+0x8e/0x1f0 [scsi_transport_iscsi] [<ffffffff815a351d>] netlink_unicast+0xed/0x1b0 [<ffffffff815a38fe>] netlink_sendmsg+0x31e/0x690 [<ffffffff815a03e4>] ? netlink_rcv_wake+0x44/0x60 [<ffffffff815a19e3>] ? netlink_recvmsg+0x1e3/0x450 beiscsi_mccq_compl_wait gets called even when MCC tag allocation failed for mgmt_invalidate_connection. mcc_wait is not initialized for tag 0 so causes crash in prepare_to_wait. Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: ufs: fix wrong/ambiguous fall through commentsTomohiro Kusumi1-2/+1
These aren't really falling through to anywhere meaningful. Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-28scsi: osd_uld: remove an unneeded NULL checkDan Carpenter1-4/+3
We don't call the remove() function unless probe() succeeds so "oud" can't be NULL here. Plus, if it were NULL, we dereference it on the next line so it would crash anyway. [mkp: applied by hand] Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Boaz Harrosh <ooo@electrozaur.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Driver version 2.6.4Brian King1-2/+2
Bump driver version Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Fix SATA EH hangBrian King1-21/+41
This patch fixes a hang that can occur in ATA EH with ipr. With ipr's usage of libata, commands should never end up on ap->eh_done_q. The timeout function we use for ipr, even for SATA devices, is scsi_times_out, so ATA_QCFLAG_EH_SCHEDULED never gets set for ipr and EH is driven completely by ipr and SCSI. The SCSI EH thread ends up calling ipr's eh_device_reset_handler, which then calls ata_std_error_handler. This ends up calling ipr_sata_reset, which issues a reset to the device. This should result in all pending commands getting failed back and having ata_qc_complete called for them, which should end up clearing ATA_QCFLAG_FAILED as qc->flags gets zeroed in ata_qc_free. This ensures that when we end up in ata_eh_finish, we don't do anything more with the command. On adapters that only support a single interrupt and when running with two MSI-X vectors or less, the adapter firmware guarantees that responses to all outstanding commands are sent back prior to sending the response to the SATA reset command. On newer adapters supporting multiple HRRQs, however, this can no longer be guaranteed, since the command responses and reset response may be processed on different HRRQs. If ipr returns from ipr_sata_reset before the outstanding command was returned, this sends us down the path of __ata_eh_qc_complete which then moves the associated scsi_cmd from the work_q in scsi_eh_bus_device_reset to ap->eh_done_q, which then will sit there forever and we will be wedged. This patch fixes this up by ensuring that any outstanding commands are flushed before returning from eh_device_reset_handler for a SATA device. Reported-by: David Jeffery <djeffery@redhat.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Error path locking fixesBrian King1-13/+93
This patch closes up some potential race conditions observed in the error handling paths in ipr while debugging an issue resulting in a hang with SATA error handling. These patches ensure we are holding the correct lock when adding and removing commands from the free and pending queues in some error scenarios. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Fix abort path race conditionBrian King1-17/+47
This fixes a race condition in the error handlomg paths of ipr. While a command is outstanding to the adapter, it is placed on a pending queue for the hrrq it is associated with, while holding the HRRQ lock. When a command is completed, it is removed from the pending queue, under HRRQ lock, and placed on a local list. This list is then iterated through without any locks and each command's done function is invoked, inside of which, the command gets returned to the free list while grabbing the HRRQ lock. This fixes two race conditions when commands have been removed from the pending list but have not yet been added to the free list. Both of these changes fix race conditions that could result in returning success from eh_abort_handler and then later calling scsi_done for the same request. The first race condition is in ipr_cancel_op. It looks through each pending queue to see if the command to be aborted is still outstanding or not. Rather than looking on the pending queue, reverse the logic to check to look for commands that are NOT on the free queue. The second race condition can occur when in ipr_wait_for_ops where we are waiting for responses for commands we've aborted. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Remove redundant initializationBrian King1-6/+5
Removes some code in __ipr_eh_dev_reset which was modifying the ipr_cmd done function. This should have already been setup at command allocation time and if its since been changed, it means we are in the ipr_erp* functions and need to wait for them to complete and don't want to override that here. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: ipr: Fix missed EH wakeupBrian King1-4/+12
Following a command abort or device reset, ipr's EH handlers wait for the commands getting aborted to get sent back from the adapter prior to returning from the EH handler. This fixes up some cases where the completion handler was not getting called, which would have resulted in the EH thread waiting until it timed out, greatly extending EH time. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Reviewed-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Tested-by: Wendy Xiong <wenxiong@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: add is_sata_phy_v2_hw()Xiaofei Tan1-4/+13
Add helper function is_sata_phy_v2_hw() to judge whether the attached device is SATA disk for a root PHY. Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: use dev_is_sata to identify SATA or SAS diskXiang Chen1-1/+1
When SMP IO is sent, sas_protocol_ata couldn't judge whether the disk is SATA or SAS disk. So use dev_is_sata to identify SATA or SAS disk. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: check hisi_sas_lu_reset() error messageJohn Garry1-2/+3
Unless we actually get some sort of failure in hisi_sas_lu_reset(), don't print a message. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: release SMP slot in lldd_abort_taskXiang Chen1-2/+7
When an SMP task timeouts, it will call lldd_abort_task to release the associated slot, and then will release the sas_task. Currently in lldd_abort_task, if we fail to internally abort IO, then the slot of SMP IO is not released, but sas_task will still be later released, so the slot's sas_task is NULL, which will cause NULL pointer when hisi_sas_slot_task_free happens later. To resolve, check the return value of internal abort, and release the slot if it failed. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: add hisi_sas_clear_nexus_ha()John Garry1-0/+8
Add function for upper-layer to reset controller when all else fails. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: rename hisi_sas_link_timeout_{enable, disable}_linkJohn Garry1-6/+6
For consistency, remove the "hisi_sas_" prefix. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: handle PHY UP+DOWN simultaneous irqXiaofei Tan1-17/+39
Handle the situation that PHY UP and DOWN irq happen simultaneously. There is no mechanism of SoC HW to ensure this situation will never happen. So, we add this handle just in case. Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: some modifications to v2 hw reg init valuesJohn Garry1-6/+6
This patch includes: (1) Disable transport layer retry (2) Support CQ time and count interrupt coal (3) fix link FIFO full issue Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Zhao Nenglong <zhaonenglong@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: process error codes according to their priorityXiang Chen1-155/+398
There are some rules to decide which error code has the high priority when errors happen together: (1) Error phase of CQ decides the error happens on RX or TX; (2) For TX error, when DMA/TRANS TX error happen simultaneously, the priority of DMA TX error is higher than TRANS TX error, so for the priority of TX error: DW2 (DMA TX part) > DW0; (3) For RX error, when TRANS/DMA/SIPC RX error happen simultaneously, the priority of TRANS RX error is higher than DMA and SIPC RX error, and we should also keep the rules (the priority of DW3 > DW2), so for the priority of RX error: DW1 > DW3 > DW2(SIPC RX part); (4) There are also a priority we should keep in the same error type. So, modify slot error code to handle this. In addition to this, some some error codes are modified according to recommendation from SoC designer. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: remove task free'ing for timeoutsJohn Garry1-14/+1
When a TMF or internal abort times-out, do not free slot. We expect this to be done upon later escalated error handling. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: fix some sas_task.task_state_lock lockingJohn Garry3-9/+14
Some more locking needs to be added/modified for when read-modify-writing sas_task.task_state_flags. Note: since we can attempt to grab this lock in interrupt context we should use irq variant of spin_lock. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: free slots after hardresetXiang Chen1-5/+6
After hardreset, we clear up IOs of remote disks, so we need to free those slots in LLDD. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: check for SAS_TASK_STATE_ABORTED in slot completeJohn Garry1-0/+10
Check in slot_complete_v2_hw() for whether a task has already been completed by upper layer. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: hardreset for SATA disk in LU resetJohn Garry1-9/+29
When issuing an LU reset for a SATA target, issue an internal abort and a hard reset. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: modify hisi_sas_abort_task() for SSPJohn Garry2-11/+19
Currently an internal abort is executed regardless of the result of the TMF. We should also check the result of the internal abort to see if we should free the slot. So change the status code STAT_IO_COMPLETE to TMF_RESP_FUNC_SUCC, meaning the slot has been successfully aborted. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: modify error handling for v2 hwXiang Chen1-6/+3
For error codes which need abort-and-retry, simulate IO timeout and let SCSI+ATA layers process those errors. Previously for SSP, we should try to abort the IO in the LLDD and then pass back to upper layer, but sometimes this would also error. So Instead of adding special error handling for this scenario in the LLDD, allow the upper layer to handle completely. No performance hit is seen by taking this approach. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: only reset link for PHY_FUNC_LINK_RESETJohn Garry1-1/+2
We currently do a hard reset for a link reset. Change this to do a link reset only. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: error hisi_sas_task_prep() when port downJohn Garry1-3/+2
When sas_port is NULL, then return SAS_PHY_DOWN. In addition, when the sas_dev is gone then explicitly return SAS_PHY_DOWN. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: remove hisi_sas_port_deformed()John Garry4-65/+46
Currently when a root PHY is deformed from a asd_sas_port we try to release the slots in the LLDD, and fail. Regardless, it is not right to release this early. This patch removes the deformed function. As it was before, port deformation is still done in hisi_sas_phy_down(). It would be nice to actually remove the hisi_sas_port_{de}formed() pair, however we cannot as we need to know the asd_sas_port index libsas has associated with an asd_sas_phy. The hw does actually generate a port id for a PHY, but this seems to a random number, so ignored for this purpose. This patch also changes the code to link slots to the hisi_sas_device, and not hisi_sas_port. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: add softreset function for SATA diskXiang Chen3-6/+69
Add softreset to clear IO after internal abort device for SATA disk. The SATA error handling for the controller is based on device internal abort and softreset function. The controller does not support internal abort for single IO, so we need to execute internal abort for device. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: move PHY init to hisi_sas_scan_start()John Garry4-11/+6
Relocate the PHY init code from LLDD hw init path to hisi_sas_scan_start(). Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: add controller resetXiang Chen3-8/+227
There are some scenarios that we need to warm-reset to reset registers of SAS controller. During reset we disable interrupts/DQs/PHYs, and after reset we re-init the hardware and rescan the topology to see if anything changed. Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: hisi_sas: add to_hisi_sas_port()John Garry4-7/+22
Introduce function to get hisi_sas_port from asd_sas_port. Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: bug fix for fip.fip_subcode in fnic_fcoe_send_vlan_reqSatish Kharat1-1/+1
This is a bug introduced when they moved the fip subcodes to central place. Was sending FIP_SC_VL_NOTE in fip.fip_subcode for VLAN request in fnic_fcoe_send_vlan_req. Change is to use FIP_SC_VL_REQ instead. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: Adding debug IO and Abort latency counter to fnic statsSatish Kharat4-5/+102
The IO and Abort latency counter counts the time taken to complete the IO and abort command into broad buckets. This is not intended for performance measurement, just a debug statistic. current_max_io_time tries to keep track of the maximum time an IO has taken to complete if it is > 30sec. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: Adding Check Condition counter to misc fnicstatsSatish Kharat3-0/+6
Just a simple counter of number of check conditions encountered on that host. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: Avoid false out-of-order detection for aborted commandSatish Kharat1-22/+18
If SCSI-ML has already issued abort on a command i.e FNIC_IOREQ_ABTS_PENDING is set and we get a IO completion, avoid this being flagged as out-of-order completion by setting the FNIC_IO_DONE flag in fnic_fcpio_icmnd_cmpl_handler Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: Fix for "Number of Active IOs" in fnicstats becoming negativeSatish Kharat1-6/+10
Fixing the IO stats update (Active IOs and IO completion) to prevent "Number of Active IOs" from becoming negative in the fnistats output. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: minor cleanup in fnic_fcpio_itmf_cmpl_handler, removing else caseSatish Kharat1-2/+1
Getting rid of else case to make the flow look bit simpler. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: Ratelimit printks to avoid flooding when vlan is not set by the ↵Satish Kharat1-8/+13
switch.i This is to avoid the log from being filled with vlan discovery messages when there is no vlan configured on the switch. Signed-off-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-23scsi: fnic: switch to pci_alloc_irq_vectorsChristoph Hellwig2-29/+13
Not a full cleanup for the IRQ code, for that we'd need to know if the max number of the various CQ types is going to stay 1 forever. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Satish Kharat <satishkh@cisco.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-17scsi: esas2r: Remove redundant NULL check on bufferColin Ian King1-5/+0
Buffer is a pointer to the static char array event_buffer and therefore can never be null, so the check is redundant. Remove it. Detected by CoverityScan, CID#1077556 ("Logically Dead Code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Bradley Grove <bgrove@attotech.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: remove incorrect __exit markupsDmitry Torokhov3-3/+3
Even if bus is not hot-pluggable, devices can be unbound from the driver via sysfs, so we should not be using __exit annotations on remove() methods. The only exception is drivers registered with platform_driver_probe() which specifically disables sysfs bind/unbind attributes. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: stex: Add S6 supportCharles1-2/+23
1. Add reboot notifier and register it in stex_probe for all supported device. 2. For all supported device in restart flow, we get a callback from notifier and set S6flag for stex_shutdown & stex_hba_stop to send restart command to FW. Signed-off-by: Charles.Chiou <charles.chiou@tw.promise.com> Signed-off-by: Paul.Lyu <paul.lyu@tw.promise.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: stex: Support Pegasus 3 productCharles1-67/+195
Pegasus series is a RAID support product using Thunderbolt technology. The newest product, Pegasus 3(P3) supports Thunderbolt 3 technology with a different chip. 1. Change driver version. 2. Add P3 VID, DID and define it's device address. 3. P3 use msi interrupt, so stex_request_irq P3 type enable msi. 4. For hibernation, use msi_lock in stex_ss_handshake to prevent msi register write again when handshaking. 5. P3 doesn't need read() as flush. 6. In stex_ss_intr & stex_abort, P3 only clear interrupt register when getting vendor defined interrupt. Signed-off-by: Charles.Chiou <charles.chiou@tw.promise.com> Signed-off-by: Paul.Lyu <paul.lyu@tw.promise.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: libiscsi: qedi: convert iscsi_task.refcount from atomic_t to refcount_tElena Reshetova2-5/+5
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Acked-by: Chris Leech <cleech@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-03-16scsi: libfc: convert fc_fcp_pkt.ref_cnt from atomic_t to refcount_tElena Reshetova1-3/+3
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-11 18:53:55 +0300