sas_eh_bus_reset_handler() amounts to sas_phy_reset() without
notification of the reset to the lldd. If this is triggered from
eh-cmnd recovery there may be sas_tasks for the lldd to terminate, so
->lldd_I_T_nexus_reset is warranted.
Cc: Xiangliang Yu <yuxiangl@xxxxxxxxxxx>
Cc: Luben Tuikov <ltuikov@xxxxxxxxx>
Cc: Jack Wang <jack_wang@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
drivers/scsi/libsas/sas_scsi_host.c | 19 ++++++++-----------
1 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 82f7532..86ffd8f 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -505,25 +505,22 @@ int sas_eh_device_reset_handler(struct scsi_cmnd *cmd)
return FAILED;
}
-/* Attempt to send a phy (bus) reset */
int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd)
{
- struct domain_device *dev = cmd_to_domain_dev(cmd);
- struct sas_phy *phy = sas_get_local_phy(dev);
- struct Scsi_Host *host = cmd->device->host;
int res;
+ struct Scsi_Host *host = cmd->device->host;
+ struct domain_device *dev = cmd_to_domain_dev(cmd);
+ struct sas_internal *i = to_sas_internal(host->transportt);
if (current != host->ehandler)
return FAILED;
- res = sas_phy_reset(phy, 1);
- if (res)
- SAS_DPRINTK("Bus reset of %s failed 0x%x\n",
- kobject_name(&phy->dev.kobj),
- res);
- sas_put_local_phy(phy);
+ if (!i->dft->lldd_I_T_nexus_reset)
+ return FAILED;
- if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE)
+ res = i->dft->lldd_I_T_nexus_reset(dev);
+ if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE ||
+ res == -ENODEV)
return SUCCESS;
return FAILED;
--
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