| Message ID | 20221020141635.2479412-1-liyihang9@huawei.com |
|---|---|
| Headers | show |
| Series | Check and update the device link rate during discovery | expand |
On 20/10/2022 15:16, Yihang Li wrote: > SATA devices attached to an expander maybe generate incorrect IOs when > physical link re-establish at a lower link rate. This is due to the > expander PHY attached to a SATA PHY is using link rate greater than the > physical PHY link rate which is re-established. > How do you create this scenario? I thought that I added min pathway support for root phy, such that we have min pathway support for root phy through 1x expander to a sata disk for initial discovery. I can't remember exactly the scenario I added support for.... BTW, did you mean the send this to mainline scsi mailng list? You did not cc maintainers Martin and James. > This patchset fixes the issue. > > Yihang Li (2): > scsi: libsas: Add sas_update_linkrate() > scsi: libsas: Add sas_check_port_linkrate() > > drivers/scsi/libsas/sas_discover.c | 18 +++++++++++++- > drivers/scsi/libsas/sas_expander.c | 40 ++++++++++++++++++++++++++++++ > drivers/scsi/libsas/sas_internal.h | 1 + > 3 files changed, 58 insertions(+), 1 deletion(-) >
Hi, Sorry, I sent the wrong email address, please ignore this series. Yihang On 2022/10/20 22:16, Yihang Li wrote: > SATA devices attached to an expander maybe generate incorrect IOs when > physical link re-establish at a lower link rate. This is due to the > expander PHY attached to a SATA PHY is using link rate greater than the > physical PHY link rate which is re-established. > > This patchset fixes the issue. > > Yihang Li (2): > scsi: libsas: Add sas_update_linkrate() > scsi: libsas: Add sas_check_port_linkrate() > > drivers/scsi/libsas/sas_discover.c | 18 +++++++++++++- > drivers/scsi/libsas/sas_expander.c | 40 ++++++++++++++++++++++++++++++ > drivers/scsi/libsas/sas_internal.h | 1 + > 3 files changed, 58 insertions(+), 1 deletion(-) >