int asd_I_T_nexus_reset(struct domain_device *dev)
{
int res, tmp_res, i;
struct sas_phy *phy = sas_find_local_phy(dev);
/* Standard mandates link reset for ATA (type 0) and
* hard reset for SSP (type 1) */
int reset_type = (dev->dev_type == SATA_DEV ||
(dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
asd_clear_nexus_I_T(dev, NEXUS_PHASE_PRE);
/* send a hard reset */
ASD_DPRINTK("sending %s reset to %s\n",
reset_type ? "hard" : "soft", dev_name(&phy->dev));
res = sas_phy_reset(phy, reset_type);
if (res == TMF_RESP_FUNC_COMPLETE) {
/* wait for the maximum settle time */
msleep(500);
/* clear all outstanding commands (keep nexus suspended) */
asd_clear_nexus_I_T(dev, NEXUS_PHASE_POST);
}
for (i = 0 ; i < 3; i++) {
tmp_res = asd_clear_nexus_I_T(dev, NEXUS_PHASE_RESUME);
if (tmp_res == TC_RESUME)
return res;
msleep(500);
}
/* This is a bit of a problem: the sequencer is still suspended
* and is refusing to resume. Hope it will resume on a bigger hammer
* or the disk is lost */
dev_printk(KERN_ERR, &phy->dev,
"Failed to resume nexus after reset 0x%x\n", tmp_res);
return TMF_RESP_FUNC_FAILED;
}
int asd_I_T_nexus_reset(struct domain_device *dev)
{
int res, tmp_res, i;
struct sas_phy *phy = sas_get_local_phy(dev);
int reset_type = (dev->dev_type == SATA_DEV ||
(dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
asd_clear_nexus_I_T(dev, NEXUS_PHASE_PRE);
ASD_DPRINTK("sending %s reset to %s\n",
reset_type ? "hard" : "soft", dev_name(&phy->dev));
res = sas_phy_reset(phy, reset_type);
if (res == TMF_RESP_FUNC_COMPLETE || res == -ENODEV) {
msleep(500);
asd_clear_nexus_I_T(dev, NEXUS_PHASE_POST);
}
for (i = 0 ; i < 3; i++) {
tmp_res = asd_clear_nexus_I_T(dev, NEXUS_PHASE_RESUME);
if (tmp_res == TC_RESUME)
goto out;
msleep(500);
}
dev_printk(KERN_ERR, &phy->dev,
"Failed to resume nexus after reset 0x%x\n", tmp_res);
res = TMF_RESP_FUNC_FAILED;
out:
sas_put_local_phy(phy);
return res;
}
