/* ------------------------------------------------------------
* Routines for driver initialization
*/
int ibmvscsi_init_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata,
int max_requests)
{
int rc;
single_host_data = hostdata;
rc = viopath_open(viopath_hostLp, viomajorsubtype_scsi, max_requests);
if (rc < 0) {
printk("viopath_open failed with rc %d in open_event_path\n",
rc);
goto viopath_open_failed;
}
rc = vio_setHandler(viomajorsubtype_scsi, ibmvscsi_handle_event);
if (rc < 0) {
printk("vio_setHandler failed with rc %d in open_event_path\n",
rc);
goto vio_setHandler_failed;
}
return 0;
vio_setHandler_failed:
viopath_close(viopath_hostLp, viomajorsubtype_scsi, max_requests);
viopath_open_failed:
return -1;
}
void ibmvscsi_release_crq_queue(struct crq_queue *queue,
struct ibmvscsi_host_data *hostdata,
int max_requests)
{
vio_clearHandler(viomajorsubtype_scsi);
viopath_close(viopath_hostLp, viomajorsubtype_scsi, max_requests);
}
static void __init get_viotape_info(struct device_node *vio_root)
{
HvLpEvent_Rc hvrc;
u32 unit;
struct vio_resource *unitinfo;
dma_addr_t unitinfo_dmaaddr;
size_t len = sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALTAPES;
struct vio_waitevent we;
int ret;
init_completion(&we.com);
ret = viopath_open(viopath_hostLp, viomajorsubtype_tape, 2);
if (ret) {
printk(KERN_WARNING "get_viotape_info: "
"error on viopath_open to hostlp %d\n", ret);
return;
}
vio_setHandler(viomajorsubtype_tape, handle_tape_event);
unitinfo = iseries_hv_alloc(len, &unitinfo_dmaaddr, GFP_ATOMIC);
if (!unitinfo)
goto clear_handler;
memset(unitinfo, 0, len);
hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_tape | viotapegetinfo,
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
(u64)(unsigned long)&we, VIOVERSION << 16,
unitinfo_dmaaddr, len, 0, 0);
if (hvrc != HvLpEvent_Rc_Good) {
printk(KERN_WARNING "get_viotape_info: hv error on op %d\n",
(int)hvrc);
goto hv_free;
}
wait_for_completion(&we.com);
for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALTAPES) &&
unitinfo[unit].rsrcname[0]; unit++) {
if (!do_device_node(vio_root, "viotape", FIRST_VIOTAPE + unit,
unit, "byte", "IBM,iSeries-viotape",
&unitinfo[unit]))
break;
}
hv_free:
iseries_hv_free(len, unitinfo, unitinfo_dmaaddr);
clear_handler:
vio_clearHandler(viomajorsubtype_tape);
viopath_close(viopath_hostLp, viomajorsubtype_tape, 2);
}
static void __init get_viodasd_info(struct device_node *vio_root)
{
int rc;
u32 unit;
rc = viopath_open(viopath_hostLp, viomajorsubtype_blockio, 2);
if (rc) {
printk(KERN_WARNING "get_viodasd_info: "
"error opening path to host partition %d\n",
viopath_hostLp);
return;
}
/* Initialize our request handler */
vio_setHandler(viomajorsubtype_blockio, handle_block_event);
for (unit = 0; unit < HVMAXARCHITECTEDVIRTUALDISKS; unit++)
probe_disk(vio_root, unit);
vio_clearHandler(viomajorsubtype_blockio);
viopath_close(viopath_hostLp, viomajorsubtype_blockio, 2);
}
static void __init get_viocd_info(struct device_node *vio_root)
{
HvLpEvent_Rc hvrc;
u32 unit;
struct vio_waitevent we;
struct vio_resource *unitinfo;
dma_addr_t unitinfo_dmaaddr;
int ret;
ret = viopath_open(viopath_hostLp, viomajorsubtype_cdio, 2);
if (ret) {
printk(KERN_WARNING
"get_viocd_info: error opening path to host partition %d\n",
viopath_hostLp);
return;
}
/* Initialize our request handler */
vio_setHandler(viomajorsubtype_cdio, handle_cd_event);
unitinfo = iseries_hv_alloc(
sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS,
&unitinfo_dmaaddr, GFP_ATOMIC);
if (!unitinfo) {
printk(KERN_WARNING
"get_viocd_info: error allocating unitinfo\n");
goto clear_handler;
}
memset(unitinfo, 0, sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS);
init_completion(&we.com);
hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_cdio | viocdgetinfo,
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
(u64)&we, VIOVERSION << 16, unitinfo_dmaaddr, 0,
sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS, 0);
if (hvrc != HvLpEvent_Rc_Good) {
printk(KERN_WARNING
"get_viocd_info: cdrom error sending event. rc %d\n",
(int)hvrc);
goto hv_free;
}
wait_for_completion(&we.com);
if (we.rc) {
printk(KERN_WARNING "get_viocd_info: bad rc %d:0x%04X\n",
we.rc, we.sub_result);
goto hv_free;
}
for (unit = 0; (unit < HVMAXARCHITECTEDVIRTUALCDROMS) &&
unitinfo[unit].rsrcname[0]; unit++) {
if (!do_device_node(vio_root, "viocd", FIRST_VIOCD + unit, unit,
"block", "IBM,iSeries-viocd", &unitinfo[unit]))
break;
}
hv_free:
iseries_hv_free(sizeof(*unitinfo) * HVMAXARCHITECTEDVIRTUALCDROMS,
unitinfo, unitinfo_dmaaddr);
clear_handler:
vio_clearHandler(viomajorsubtype_cdio);
viopath_close(viopath_hostLp, viomajorsubtype_cdio, 2);
}
