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Subject[PATCH v4 5/8] staging: qlge: support force_coredump option for devlink health dump
Date
With force_coredump module parameter set, devlink health dump will
reset the MPI RISC first which takes 5 secs to be finished.

Note that only NIC function that owns the firmware can do the
force_dumping. Otherwise devlink will receive an EPERM error.

Signed-off-by: Coiby Xu <coiby.xu@gmail.com>
---
drivers/staging/qlge/qlge_devlink.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/staging/qlge/qlge_devlink.c b/drivers/staging/qlge/qlge_devlink.c
index bf7d75ed5eae..c6ef5163e241 100644
--- a/drivers/staging/qlge/qlge_devlink.c
+++ b/drivers/staging/qlge/qlge_devlink.c
@@ -56,10 +56,23 @@ static int qlge_reporter_coredump(struct devlink_health_reporter *reporter,

struct qlge_adapter *qdev = devlink_health_reporter_priv(reporter);
struct qlge_mpi_coredump *dump;
+ wait_queue_head_t wait;

if (!netif_running(qdev->ndev))
return 0;

+ if (test_bit(QL_FRC_COREDUMP, &qdev->flags)) {
+ if (qlge_own_firmware(qdev)) {
+ qlge_queue_fw_error(qdev);
+ init_waitqueue_head(&wait);
+ wait_event_timeout(wait, 0, 5 * HZ);
+ } else {
+ netif_err(qdev, ifup, qdev->ndev,
+ "Force Coredump failed because this NIC function doesn't own the firmware\n");
+ return -EPERM;
+ }
+ }
+
dump = kvmalloc(sizeof(*dump), GFP_KERNEL);
if (!dump)
return -ENOMEM;
--
2.29.2
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