diff options
| author | Chad Dupuis <cdupuis@marvell.com> | 2019-03-26 00:38:39 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-03-27 21:54:52 -0400 |
| commit | 96b1765a099b3b38d5a77796c45ee11a6ea6bf84 (patch) | |
| tree | 4dfd003412baf9c039d65debe0725f595965e927 /drivers | |
| parent | 69ef2c692510d5154c613569caeeed3c74806231 (diff) | |
| download | lwn-96b1765a099b3b38d5a77796c45ee11a6ea6bf84.tar.gz lwn-96b1765a099b3b38d5a77796c45ee11a6ea6bf84.zip | |
scsi: qedf: Use a separate completion for cleanup commands
- If a TMF and cleanup are issued at the same time they could cause a call
trace if issued against the same xid as the io_req->tm_done completion
is used for both.
- Set and clear cleanup bit in cleanup routine.
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qedf/qedf.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/qedf/qedf_io.c | 11 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index 9e5e18316ddc..fb7d0d5ffa67 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -128,6 +128,7 @@ struct qedf_ioreq { struct delayed_work timeout_work; struct completion tm_done; struct completion abts_done; + struct completion cleanup_done; struct e4_fcoe_task_context *task; struct fcoe_task_params *task_params; struct scsi_sgl_task_params *sgl_task_params; diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index c22dbb3afe7d..58257ecfaf08 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -2065,10 +2065,13 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, io_req->xid); return SUCCESS; } + set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags); /* Ensure room on SQ */ if (!atomic_read(&fcport->free_sqes)) { QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n"); + /* Need to make sure we clear the flag since it was set */ + clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags); return FAILED; } @@ -2094,7 +2097,7 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, task = qedf_get_task_mem(&qedf->tasks, xid); - init_completion(&io_req->tm_done); + init_completion(&io_req->cleanup_done); spin_lock_irqsave(&fcport->rport_lock, flags); @@ -2108,8 +2111,8 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, spin_unlock_irqrestore(&fcport->rport_lock, flags); - tmo = wait_for_completion_timeout(&io_req->tm_done, - QEDF_CLEANUP_TIMEOUT * HZ); + tmo = wait_for_completion_timeout(&io_req->cleanup_done, + QEDF_CLEANUP_TIMEOUT * HZ); if (!tmo) { rc = FAILED; @@ -2153,7 +2156,7 @@ void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags); /* Complete so we can finish cleaning up the I/O */ - complete(&io_req->tm_done); + complete(&io_req->cleanup_done); } static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd, |