mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 09:00:54 +07:00
[SCSI] mptfusion: Updated SCSI IO IOCTL error handling.
Behavior changes only for IOCTLs that time out. Current behavior of Bus Reset remains the same for RAID Passthru Timeouts Current behavior of Diagnostic reset for any other type of IOCTL remains the same CHANGE: For IOCTL SCSI IOs that timeout, a Target Reset TM is sent, instead of Bus Reset. All error handing from that point is the same as what the driver currently does, which is to say that if the Device Reset TM fails it escalates do diagnostic reset. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
James Bottomley
parent
d0f698c461
commit
7d757f1855
@ -128,7 +128,6 @@ static MptSge_t *kbuf_alloc_2_sgl(int bytes, u32 dir, int sge_offset, int *frags
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struct buflist **blp, dma_addr_t *sglbuf_dma, MPT_ADAPTER *ioc);
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static void kfree_sgl(MptSge_t *sgl, dma_addr_t sgl_dma,
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struct buflist *buflist, MPT_ADAPTER *ioc);
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static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function);
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/*
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* Reset Handler cleanup function
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@ -275,45 +274,6 @@ mptctl_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply)
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return 1;
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}
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/* mptctl_timeout_expired
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*
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* Expecting an interrupt, however timed out.
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*
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*/
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static void
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mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
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{
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unsigned long flags;
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": %s\n",
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ioc->name, __func__));
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if (mpt_fwfault_debug)
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mpt_halt_firmware(ioc);
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spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
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if (ioc->ioc_reset_in_progress) {
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spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
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CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
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mpt_free_msg_frame(ioc, mf);
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return;
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}
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spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
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if (!mptctl_bus_reset(ioc, mf->u.hdr.Function))
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return;
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/* Issue a reset for this device.
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* The IOC is not responding.
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*/
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling HardReset! \n",
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ioc->name));
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CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
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mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
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mpt_free_msg_frame(ioc, mf);
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}
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static int
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mptctl_taskmgmt_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
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@ -343,12 +303,8 @@ mptctl_taskmgmt_reply(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
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return 0;
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}
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/* mptctl_bus_reset
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*
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* Bus reset code.
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*
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*/
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static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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static int
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mptctl_do_taskmgmt(MPT_ADAPTER *ioc, u8 tm_type, u8 bus_id, u8 target_id)
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{
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MPT_FRAME_HDR *mf;
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SCSITaskMgmt_t *pScsiTm;
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@ -359,13 +315,6 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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unsigned long time_count;
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u16 iocstatus;
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/* bus reset is only good for SCSI IO, RAID PASSTHRU */
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if (!(function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
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function == MPI_FUNCTION_SCSI_IO_REQUEST)) {
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dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
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"TaskMgmt, not SCSI_IO!!\n", ioc->name));
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return -EPERM;
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}
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mutex_lock(&ioc->taskmgmt_cmds.mutex);
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if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
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@ -375,15 +324,14 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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retval = 0;
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/* Send request
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*/
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mf = mpt_get_msg_frame(mptctl_taskmgmt_id, ioc);
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if (mf == NULL) {
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dtmprintk(ioc, printk(MYIOC_s_WARN_FMT
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"TaskMgmt, no msg frames!!\n", ioc->name));
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dtmprintk(ioc,
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printk(MYIOC_s_WARN_FMT "TaskMgmt, no msg frames!!\n",
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ioc->name));
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mpt_clear_taskmgmt_in_progress_flag(ioc);
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retval = -ENOMEM;
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goto mptctl_bus_reset_done;
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goto tm_done;
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}
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
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@ -392,10 +340,13 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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pScsiTm = (SCSITaskMgmt_t *) mf;
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memset(pScsiTm, 0, sizeof(SCSITaskMgmt_t));
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pScsiTm->Function = MPI_FUNCTION_SCSI_TASK_MGMT;
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pScsiTm->TaskType = MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS;
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pScsiTm->MsgFlags = MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
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pScsiTm->TargetID = 0;
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pScsiTm->Bus = 0;
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pScsiTm->TaskType = tm_type;
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if ((tm_type == MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS) &&
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(ioc->bus_type == FC))
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pScsiTm->MsgFlags =
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MPI_SCSITASKMGMT_MSGFLAGS_LIPRESET_RESET_OPTION;
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pScsiTm->TargetID = target_id;
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pScsiTm->Bus = bus_id;
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pScsiTm->ChainOffset = 0;
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pScsiTm->Reserved = 0;
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pScsiTm->Reserved1 = 0;
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@ -413,17 +364,16 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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timeout = 30;
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break;
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case SPI:
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default:
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timeout = 2;
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default:
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timeout = 10;
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break;
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}
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
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"TaskMgmt type=%d timeout=%ld\n",
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ioc->name, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS, timeout));
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dtmprintk(ioc,
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printk(MYIOC_s_DEBUG_FMT "TaskMgmt type=%d timeout=%ld\n",
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ioc->name, tm_type, timeout));
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INITIALIZE_MGMT_STATUS(ioc->taskmgmt_cmds.status)
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CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
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time_count = jiffies;
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if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
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(ioc->facts.MsgVersion >= MPI_VERSION_01_05))
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@ -432,17 +382,20 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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retval = mpt_send_handshake_request(mptctl_taskmgmt_id, ioc,
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sizeof(SCSITaskMgmt_t), (u32 *)pScsiTm, CAN_SLEEP);
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if (retval != 0) {
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dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
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dfailprintk(ioc,
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printk(MYIOC_s_ERR_FMT
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"TaskMgmt send_handshake FAILED!"
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" (ioc %p, mf %p, rc=%d) \n", ioc->name,
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ioc, mf, retval));
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mpt_free_msg_frame(ioc, mf);
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mpt_clear_taskmgmt_in_progress_flag(ioc);
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goto mptctl_bus_reset_done;
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goto tm_done;
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}
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}
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/* Now wait for the command to complete */
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ii = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, timeout*HZ);
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if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
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"TaskMgmt failed\n", ioc->name));
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@ -452,14 +405,14 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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retval = 0;
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else
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retval = -1; /* return failure */
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goto mptctl_bus_reset_done;
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goto tm_done;
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}
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if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_RF_VALID)) {
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
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"TaskMgmt failed\n", ioc->name));
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retval = -1; /* return failure */
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goto mptctl_bus_reset_done;
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goto tm_done;
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}
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pScsiTmReply = (SCSITaskMgmtReply_t *) ioc->taskmgmt_cmds.reply;
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@ -467,7 +420,7 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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"TaskMgmt fw_channel = %d, fw_id = %d, task_type=0x%02X, "
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"iocstatus=0x%04X\n\tloginfo=0x%08X, response_code=0x%02X, "
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"term_cmnds=%d\n", ioc->name, pScsiTmReply->Bus,
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pScsiTmReply->TargetID, MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
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pScsiTmReply->TargetID, tm_type,
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le16_to_cpu(pScsiTmReply->IOCStatus),
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le32_to_cpu(pScsiTmReply->IOCLogInfo),
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pScsiTmReply->ResponseCode,
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@ -485,13 +438,71 @@ static int mptctl_bus_reset(MPT_ADAPTER *ioc, u8 function)
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retval = -1; /* return failure */
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}
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mptctl_bus_reset_done:
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tm_done:
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mutex_unlock(&ioc->taskmgmt_cmds.mutex);
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CLEAR_MGMT_STATUS(ioc->taskmgmt_cmds.status)
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return retval;
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}
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/* mptctl_timeout_expired
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*
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* Expecting an interrupt, however timed out.
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*
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*/
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static void
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mptctl_timeout_expired(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
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{
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unsigned long flags;
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int ret_val = -1;
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SCSIIORequest_t *scsi_req = (SCSIIORequest_t *) mf;
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u8 function = mf->u.hdr.Function;
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT ": %s\n",
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ioc->name, __func__));
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if (mpt_fwfault_debug)
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mpt_halt_firmware(ioc);
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spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
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if (ioc->ioc_reset_in_progress) {
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spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
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CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
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mpt_free_msg_frame(ioc, mf);
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return;
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}
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spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
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CLEAR_MGMT_PENDING_STATUS(ioc->ioctl_cmds.status)
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if (ioc->bus_type == SAS) {
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if (function == MPI_FUNCTION_SCSI_IO_REQUEST)
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ret_val = mptctl_do_taskmgmt(ioc,
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MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
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scsi_req->Bus, scsi_req->TargetID);
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else if (function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)
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ret_val = mptctl_do_taskmgmt(ioc,
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MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
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scsi_req->Bus, 0);
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if (!ret_val)
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return;
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} else {
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if ((function == MPI_FUNCTION_SCSI_IO_REQUEST) ||
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(function == MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH))
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ret_val = mptctl_do_taskmgmt(ioc,
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MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
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scsi_req->Bus, 0);
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if (!ret_val)
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return;
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}
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dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "Calling Reset! \n",
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ioc->name));
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mpt_Soft_Hard_ResetHandler(ioc, CAN_SLEEP);
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mpt_free_msg_frame(ioc, mf);
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}
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/* mptctl_ioc_reset
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