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| author | Shyam Sundar <ssundar@marvell.com> | 2019-03-26 10:38:55 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-03-28 04:54:53 +0300 |
| commit | faea5719d373f38d785961ee724de1b392e869e8 (patch) | |
| tree | 0956d62ecbba71d20bce3b3c12890c1e1b7d6ae8 /drivers/scsi/qedf/qedf.h | |
| parent | f2c98af4a27ddd93c7fe1490a62feb363c953085 (diff) | |
| download | linux-faea5719d373f38d785961ee724de1b392e869e8.tar.xz | |
scsi: qedf: Cleanup rrq_work after QEDF_CMD_OUTSTANDING is cleared
Here is the relevant logs for the problem we are solving:
qedf_flush_active_ios:1707]:3: Flush active i/o's num=0x17 fcport=0xffff948168fbcc80 port_id=0x550200 scsi_id=0.
qedf_flush_active_ios:1708]:3: Locking flush mutex.
qedf_flush_active_ios:1758]:3: Not outstanding, xid=0xaaf, cmd_type=3 refcount=1.
qedf_flush_active_ios:1896]:3: Flushed 0x16 I/Os, active=0x1.
qedf_flush_active_ios:1901]:3: Flushed 0x16 I/Os, active=0x1 cnt=60.
qedf_send_rrq:295]:3: Sending RRQ orig io = ffffb48b8f7d7158, orig_xid = 0xaaf
qedf_initiate_els:37]:3: Sending ELS
qedf_initiate_els:68]:3: initiate_els els_req = 0xffffb48b8f6d3098 cb_arg = ffff948fd5e4de80 xid = 4c6
qedf_init_mp_req:2172]:3: Entered.
qedf_init_mp_task:727]:3: Initializing MP task for cmd_type=4
qedf_initiate_els:134]:3: Ringing doorbell for ELS req
qedf_flush_active_ios:1901]:3: Flushed 0x16 I/Os, active=0x2 cnt=20.
qedf_cmd_timeout:96]:3: ELS timeout, xid=0x4c6.
qedf_rrq_compl:186]:3: Entered.
qedf_rrq_compl:204]:3: rrq_compl: orig io = ffffb48b8f7d7158, orig xid = 0xaaf, rrq_xid = 0x4c6, refcount=1
qedf_flush_active_ios:1935]:3: Unlocking flush mutex.
qedf_upload_connection:1579]:3: Uploading connection port_id=550200.
We found an ABTS command for which CMD_OUTSTANDING was cleared (line 3).
For this command, delayed send_rrq was queued, but would take 10 secs to
execute. Adding capability to detect that (based on io_req->state that is
being introduced), and attempt to cancel rrq_work. If we succeed, we drop
the reference and free the io_req. If we cannot, then the els will get sent
out and we will wait for 10 secs for it to complete.
Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qedf/qedf.h')
| -rw-r--r-- | drivers/scsi/qedf/qedf.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index 1e0d1429ed48..f647817fb79a 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -119,9 +119,26 @@ struct qedf_ioreq { u8 io_req_flags; uint8_t tm_flags; struct qedf_rport *fcport; +#define QEDF_CMD_ST_INACTIVE 0 +#define QEDFC_CMD_ST_IO_ACTIVE 1 +#define QEDFC_CMD_ST_ABORT_ACTIVE 2 +#define QEDFC_CMD_ST_ABORT_ACTIVE_EH 3 +#define QEDFC_CMD_ST_CLEANUP_ACTIVE 4 +#define QEDFC_CMD_ST_CLEANUP_ACTIVE_EH 5 +#define QEDFC_CMD_ST_RRQ_ACTIVE 6 +#define QEDFC_CMD_ST_RRQ_WAIT 7 +#define QEDFC_CMD_ST_OXID_RETIRE_WAIT 8 +#define QEDFC_CMD_ST_TMF_ACTIVE 9 +#define QEDFC_CMD_ST_DRAIN_ACTIVE 10 +#define QEDFC_CMD_ST_CLEANED 11 +#define QEDFC_CMD_ST_ELS_ACTIVE 12 + atomic_t state; unsigned long flags; enum qedf_ioreq_event event; size_t data_xfer_len; + /* ID: 001: Alloc cmd (qedf_alloc_cmd) */ + /* ID: 002: Initiate ABTS (qedf_initiate_abts) */ + /* ID: 003: For RRQ (qedf_process_abts_compl) */ struct kref refcount; struct qedf_cmd_mgr *cmd_mgr; struct io_bdt *bd_tbl; |