diff options
| author | Somnath Kotur <somnath.kotur@broadcom.com> | 2017-08-31 05:57:29 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-09-22 19:57:32 +0200 |
| commit | 2b6376305dcb2cb79d0599cf3b9ce98aa860cb4f (patch) | |
| tree | 7ad9b5e2174c259fb3055b1404f51c2673aa8e44 | |
| parent | bnxt_re: Fix update of qplib_qp.mtu when modified (diff) | |
| download | linux-2b6376305dcb2cb79d0599cf3b9ce98aa860cb4f.tar.xz linux-2b6376305dcb2cb79d0599cf3b9ce98aa860cb4f.zip | |
bnxt_re: Stop issuing further cmds to FW once a cmd times out
Once a cmd to FW times out(after 20s) it is reasonable to
assume the FW or atleast the control path is dead.
No point issuing further cmds to the FW as each subsequent cmd
with another 20s timeout will cascade resulting in unnecessary
traces and/or NMI Lockups.
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_rcfw.h | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c index 391bb7006e8f..2bdb1562bd21 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c @@ -107,6 +107,9 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req, return -EINVAL; } + if (test_bit(FIRMWARE_TIMED_OUT, &rcfw->flags)) + return -ETIMEDOUT; + /* Cmdq are in 16-byte units, each request can consume 1 or more * cmdqe */ @@ -226,6 +229,7 @@ int bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw, /* timed out */ dev_err(&rcfw->pdev->dev, "QPLIB: cmdq[%#x]=%#x timedout (%d)msec", cookie, opcode, RCFW_CMD_WAIT_TIME_MS); + set_bit(FIRMWARE_TIMED_OUT, &rcfw->flags); return rc; } diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h index 0ed312f17c8d..85b16da287f9 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h @@ -162,8 +162,9 @@ struct bnxt_qplib_rcfw { unsigned long *cmdq_bitmap; u32 bmap_size; unsigned long flags; -#define FIRMWARE_INITIALIZED_FLAG 1 +#define FIRMWARE_INITIALIZED_FLAG BIT(0) #define FIRMWARE_FIRST_FLAG BIT(31) +#define FIRMWARE_TIMED_OUT BIT(3) wait_queue_head_t waitq; int (*aeq_handler)(struct bnxt_qplib_rcfw *, struct creq_func_event *); |