Messages in this thread | | | Subject | Re: [PATCH plinth/topic-sas-4.18] {topost} scsi: hisi_sas: send HARD RESET to clear the previous affiliation of STP target port when init device | From | "chenxiang (M)" <> | Date | Thu, 23 Aug 2018 17:18:27 +0800 |
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Sorry, sent the wrong mail list and please ignore the patch.
在 2018/8/23 15:58, c00284940 写道: > If exchange SAS expander from one SAS controller to other SAS controller > without power down, the STP target port will maintain previous affiliation and > reject all subsequent connection requests from other STP initiator ports > with OPEN_REJECT (STP RESOURCES BUSY). > > To solve this issue, send HARD RESET to clear the previous affiliation of > STP target port according to SPL(chapter 6.19.4). > > Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> > --- > drivers/scsi/hisi_sas/hisi_sas_main.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c > index bb0fa24..9225138 100644 > --- a/drivers/scsi/hisi_sas/hisi_sas_main.c > +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c > @@ -612,6 +612,7 @@ static int hisi_sas_init_device(struct domain_device *device) > struct hisi_sas_tmf_task tmf_task; > int retry = HISI_SAS_SRST_ATA_DISK_CNT; > struct hisi_hba *hisi_hba = dev_to_hisi_hba(device); > + struct sas_phy *local_phy; > > switch (device->dev_type) { > case SAS_END_DEVICE: > @@ -627,6 +628,14 @@ static int hisi_sas_init_device(struct domain_device *device) > case SAS_SATA_PM: > case SAS_SATA_PM_PORT: > case SAS_SATA_PENDING: > + /* > + * send HARD RESET to clear previous affiliation of > + * STP target port > + */ > + local_phy = sas_get_local_phy(device); > + if (!scsi_is_sas_phy_local(local_phy)) > + sas_phy_reset(local_phy, 1); > + sas_put_local_phy(local_phy); > while (retry-- > 0) { > rc = hisi_sas_softreset_ata_disk(device); > if (!rc)
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