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8f55c307ab
We can request task management IOCTL command(MPI2_FUNCTION_SCSI_TASK_MGMT)
to /dev/mpt3ctl. If the given task_type is either abort task or query
task, it may need a field named "Initiator Port Transfer Tag to Manage" in
the IU.
Current code does not support to check target IPTT tag from the tm_request.
This patch introduces to check TaskMID given from the userspace as a target
tag. We have a rule of relationship between
(struct request *req->tag) and smid in mpt3sas_base.c:
3318 u16
3319 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
3320 struct scsi_cmnd *scmd)
3321 {
3322 struct scsiio_tracker *request = scsi_cmd_priv(scmd);
3323 unsigned int tag = scmd->request->tag;
3324 u16 smid;
3325
3326 smid = tag + 1;
So if we want to abort a request tagged #X, then we can pass (X + 1) to
this IOCTL handler. Otherwise, user space just can pass 0 TaskMID to abort
the first outstanding smid which is legacy behaviour.
Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: MPT-FusionLinux.pdl@broadcom.com
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
Acked-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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|---|---|---|
| .. | ||
| mpi | ||
| Kconfig | ||
| Makefile | ||
| mpt3sas_base.c | ||
| mpt3sas_base.h | ||
| mpt3sas_config.c | ||
| mpt3sas_ctl.c | ||
| mpt3sas_ctl.h | ||
| mpt3sas_debug.h | ||
| mpt3sas_scsih.c | ||
| mpt3sas_transport.c | ||
| mpt3sas_trigger_diag.c | ||
| mpt3sas_trigger_diag.h | ||
| mpt3sas_warpdrive.c | ||