| Message ID | 1545235006-151716-1-git-send-email-john.garry@huawei.com |
|---|---|
| Headers | show |
| Series | hisi_sas: debugfs support | expand |
John, > This patchset adds debugfs support for capturing driver state for > particular times when the HW has malfunctioned (and we must reset the HW). > > Every controller HW version has had bugs. These bugs have been very > painful to debug. One useful tool to debug these is being able to capture > and export HW registers and driver control structures at point of failure. > > This feature has been maintained out-of-tree for some time, so add it now. Applied to 4.22/scsi-queue, thanks! -- Martin K. Petersen Oracle Linux Engineering
This patchset adds debugfs support for capturing driver state for particular times when the HW has malfunctioned (and we must reset the HW). Every controller HW version has had bugs. These bugs have been very painful to debug. One useful tool to debug these is being able to capture and export HW registers and driver control structures at point of failure. This feature has been maintained out-of-tree for some time, so add it now. Luo Jiaxing (8): scsi: hisi_sas: Create root and device debugfs directories scsi: hisi_sas: Alloc debugfs snapshot buffer memory for all registers scsi: hisi_sas: Take debugfs snapshot for all regs scsi: hisi_sas: Debugfs global register create file and add file operations scsi: hisi_sas: Add debugfs for port registers scsi: hisi_sas: Add debugfs CQ file and add file operations scsi: hisi_sas: Add debugfs DQ file and add file operations scsi: hisi_sas: Add debugfs IOST file and add file operations drivers/scsi/hisi_sas/hisi_sas.h | 47 ++- drivers/scsi/hisi_sas/hisi_sas_main.c | 508 +++++++++++++++++++++++++++++++++ drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 9 +- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 174 ++++++++++- 4 files changed, 732 insertions(+), 6 deletions(-) -- 1.9.1