[PATCH v4 5/8] staging: qlge: support force_coredump option for devlink health dump
From: Coiby Xu <hidden>
Date: 2021-01-23 10:49:02
Also in:
lkml
Subsystem:
staging subsystem, the rest · Maintainers:
Greg Kroah-Hartman, Linus Torvalds
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 <redacted> --- 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;
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2.29.2