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kmod-redhat-mpt3sas/SOURCES/0010-scsi-scsi-mpt3sas-Add-...

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From c5f66ce1fe8556c98df0c2ebdf0d300adb042742 Mon Sep 17 00:00:00 2001
From: Tomas Henzl <thenzl@redhat.com>
Date: Fri, 9 Oct 2020 14:06:28 -0400
Subject: [PATCH 10/33] [scsi] scsi: mpt3sas: Add functions to check if any cmd
is outstanding on Target and LUN
Message-id: <20201009140636.7976-11-thenzl@redhat.com>
Patchwork-id: 330365
Patchwork-instance: patchwork
O-Subject: [RHEL8.4 e-stor PATCH 10/18] scsi: mpt3sas: Add functions to check if any cmd is outstanding on Target and LUN
Bugzilla: 1851440
RH-Acked-by: Ewan Milne <emilne@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: Maurizio Lombardi <mlombard@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
Add helper functions to check whether any SCSI command is outstanding on
particular Target, LUN device.
Also add function parameters 'channel', 'id' to function
mpt3sas_scsih_issue_tm().
Link: https://lore.kernel.org/r/1596096229-3341-6-git-send-email-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 521e9c0b62860ed3b6899c771c1ab82b51009311)
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
drivers/scsi/mpt3sas/mpt3sas_base.h | 9 ++--
drivers/scsi/mpt3sas/mpt3sas_ctl.c | 6 ++-
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 92 +++++++++++++++++++++++++++++++-----
3 files changed, 88 insertions(+), 19 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index d3062de217c6..bd892230a87b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -1610,11 +1610,12 @@ void mpt3sas_scsih_clear_outstanding_scsi_tm_commands(
struct MPT3SAS_ADAPTER *ioc);
void mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc);
-int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
- u8 type, u16 smid_task, u16 msix_task, u8 timeout, u8 tr_method);
+int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+ uint channel, uint id, u64 lun, u8 type, u16 smid_task,
+ u16 msix_task, u8 timeout, u8 tr_method);
int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
- u64 lun, u8 type, u16 smid_task, u16 msix_task,
- u8 timeout, u8 tr_method);
+ uint channel, uint id, u64 lun, u8 type, u16 smid_task,
+ u16 msix_task, u8 timeout, u8 tr_method);
void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 43260306668c..194ac9d03bc9 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -1109,13 +1109,15 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
pcie_device->device_info))))
mpt3sas_scsih_issue_locked_tm(ioc,
le16_to_cpu(mpi_request->FunctionDependent1),
- 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
+ 0, 0, 0,
+ MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
0, pcie_device->reset_timeout,
MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE);
else
mpt3sas_scsih_issue_locked_tm(ioc,
le16_to_cpu(mpi_request->FunctionDependent1),
- 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
+ 0, 0, 0,
+ MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET);
} else
mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 51965b80a51f..83bef0809f47 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -1513,6 +1513,66 @@ _scsih_is_nvme_pciescsi_device(u32 device_info)
}
/**
+ * _scsih_scsi_lookup_find_by_target - search for matching channel:id
+ * @ioc: per adapter object
+ * @id: target id
+ * @channel: channel
+ * Context: This function will acquire ioc->scsi_lookup_lock.
+ *
+ * This will search for a matching channel:id in the scsi_lookup array,
+ * returning 1 if found.
+ */
+static u8
+_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
+ int channel)
+{
+ int smid;
+ struct scsi_cmnd *scmd;
+
+ for (smid = 1;
+ smid <= ioc->shost->can_queue; smid++) {
+ scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
+ if (!scmd)
+ continue;
+ if (scmd->device->id == id &&
+ scmd->device->channel == channel)
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
+ * @ioc: per adapter object
+ * @id: target id
+ * @lun: lun number
+ * @channel: channel
+ * Context: This function will acquire ioc->scsi_lookup_lock.
+ *
+ * This will search for a matching channel:id:lun in the scsi_lookup array,
+ * returning 1 if found.
+ */
+static u8
+_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
+ unsigned int lun, int channel)
+{
+ int smid;
+ struct scsi_cmnd *scmd;
+
+ for (smid = 1; smid <= ioc->shost->can_queue; smid++) {
+
+ scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
+ if (!scmd)
+ continue;
+ if (scmd->device->id == id &&
+ scmd->device->channel == channel &&
+ scmd->device->lun == lun)
+ return 1;
+ }
+ return 0;
+}
+
+/**
* mpt3sas_scsih_scsi_lookup_get - returns scmd entry
* @ioc: per adapter object
* @smid: system request message index
@@ -2704,6 +2764,8 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
* mpt3sas_scsih_issue_tm - main routine for sending tm requests
* @ioc: per adapter struct
* @handle: device handle
+ * @channel: the channel assigned by the OS
+ * @id: the id assigned by the OS
* @lun: lun number
* @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
* @smid_task: smid assigned to the task
@@ -2720,8 +2782,9 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
* Return: SUCCESS or FAILED.
*/
int
-mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
- u8 type, u16 smid_task, u16 msix_task, u8 timeout, u8 tr_method)
+mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
+ uint id, u64 lun, u8 type, u16 smid_task, u16 msix_task,
+ u8 timeout, u8 tr_method)
{
Mpi2SCSITaskManagementRequest_t *mpi_request;
Mpi2SCSITaskManagementReply_t *mpi_reply;
@@ -2826,14 +2889,14 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
}
int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
- u64 lun, u8 type, u16 smid_task, u16 msix_task,
- u8 timeout, u8 tr_method)
+ uint channel, uint id, u64 lun, u8 type, u16 smid_task,
+ u16 msix_task, u8 timeout, u8 tr_method)
{
int ret;
mutex_lock(&ioc->tm_cmds.mutex);
- ret = mpt3sas_scsih_issue_tm(ioc, handle, lun, type, smid_task,
- msix_task, timeout, tr_method);
+ ret = mpt3sas_scsih_issue_tm(ioc, handle, channel, id, lun, type,
+ smid_task, msix_task, timeout, tr_method);
mutex_unlock(&ioc->tm_cmds.mutex);
return ret;
@@ -2980,7 +3043,8 @@ scsih_abort(struct scsi_cmnd *scmd)
if (pcie_device && (!ioc->tm_custom_handling) &&
(!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info))))
timeout = ioc->nvme_abort_timeout;
- r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
+ scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
st->smid, st->msix_io, timeout, 0);
/* Command must be cleared after abort */
@@ -3056,7 +3120,8 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
- r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
+ scmd->device->id, scmd->device->lun,
MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
@@ -3134,7 +3199,8 @@ scsih_target_reset(struct scsi_cmnd *scmd)
tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE;
} else
tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
- r = mpt3sas_scsih_issue_locked_tm(ioc, handle, 0,
+ r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
+ scmd->device->id, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0,
tr_timeout, tr_method);
/* Check for busy commands after reset */
@@ -7530,7 +7596,7 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
goto out;
spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
- r = mpt3sas_scsih_issue_tm(ioc, handle, lun,
+ r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, st->smid,
st->msix_io, 30, 0);
if (r == FAILED) {
@@ -7571,9 +7637,9 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
if (ioc->shost_recovery)
goto out_no_lock;
- r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->lun,
- MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, st->smid,
- st->msix_io, 30, 0);
+ r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
+ sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
+ st->smid, st->msix_io, 30, 0);
if (r == FAILED || st->cb_idx != 0xFF) {
sdev_printk(KERN_WARNING, sdev,
"mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
--
2.13.6
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