static void __init probe_disk(struct device_node *vio_root, u32 unit)
{
HvLpEvent_Rc hvrc;
struct vio_waitevent we;
u16 flags = 0;
retry:
init_completion(&we.com);
/* Send the open event to OS/400 */
hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_blockio | vioblockopen,
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
(u64)(unsigned long)&we, VIOVERSION << 16,
((u64)unit << 48) | ((u64)flags<< 32),
0, 0, 0);
if (hvrc != 0) {
printk(KERN_WARNING "probe_disk: bad rc on HV open %d\n",
(int)hvrc);
return;
}
wait_for_completion(&we.com);
if (we.rc != 0) {
if (flags != 0)
return;
/* try again with read only flag set */
flags = vioblockflags_ro;
goto retry;
}
/* Send the close event to OS/400. We DON'T expect a response */
hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_blockio | vioblockclose,
HvLpEvent_AckInd_NoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
0, VIOVERSION << 16,
((u64)unit << 48) | ((u64)flags << 32),
0, 0, 0);
if (hvrc != 0) {
printk(KERN_WARNING "probe_disk: "
"bad rc sending event to OS/400 %d\n", (int)hvrc);
return;
}
do_device_node(vio_root, "viodasd", FIRST_VIODASD + unit, unit,
"block", "IBM,iSeries-viodasd", NULL);
}
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);
}
/*
* Send an open event
*/
static int send_open(HvLpIndex remoteLp, void *sem)
{
return HvCallEvent_signalLpEventFast(remoteLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_chario | viocharopen,
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(remoteLp),
viopath_targetinst(remoteLp),
(u64)(unsigned long)sem, VIOVERSION << 16,
0, 0, 0, 0);
}
/**
* ibmvscsi_send_crq: - Send a CRQ
* @hostdata: the adapter
* @word1: the first 64 bits of the data
* @word2: the second 64 bits of the data
*/
int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata, u64 word1, u64 word2)
{
single_host_data = hostdata;
return HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_scsi,
HvLpEvent_AckInd_NoAck,
HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
0,
VIOVERSION << 16, word1, word2, 0,
0);
}
static int proc_viopath_show(struct seq_file *m, void *v)
{
char *buf;
u16 vlanMap;
dma_addr_t handle;
HvLpEvent_Rc hvrc;
DECLARE_MUTEX_LOCKED(Semaphore);
buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!buf)
return 0;
memset(buf, 0, PAGE_SIZE);
handle = dma_map_single(iSeries_vio_dev, buf, PAGE_SIZE,
DMA_FROM_DEVICE);
hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
HvLpEvent_Type_VirtualIo,
viomajorsubtype_config | vioconfigget,
HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
viopath_sourceinst(viopath_hostLp),
viopath_targetinst(viopath_hostLp),
(u64)(unsigned long)&Semaphore, VIOVERSION << 16,
((u64)handle) << 32, PAGE_SIZE, 0, 0);
if (hvrc != HvLpEvent_Rc_Good)
printk(VIOPATH_KERN_WARN "hv error on op %d\n", (int)hvrc);
down(&Semaphore);
vlanMap = HvLpConfig_getVirtualLanIndexMap();
buf[PAGE_SIZE-1] = '\0';
seq_printf(m, "%s", buf);
seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap);
seq_printf(m, "SRLNBR=%c%c%c%c%c%c%c\n",
e2a(xItExtVpdPanel.mfgID[2]),
e2a(xItExtVpdPanel.mfgID[3]),
e2a(xItExtVpdPanel.systemSerial[1]),
e2a(xItExtVpdPanel.systemSerial[2]),
e2a(xItExtVpdPanel.systemSerial[3]),
e2a(xItExtVpdPanel.systemSerial[4]),
e2a(xItExtVpdPanel.systemSerial[5]));
dma_unmap_single(iSeries_vio_dev, handle, PAGE_SIZE, DMA_FROM_DEVICE);
kfree(buf);
return 0;
}
/*
* Initialize the common fields in a charLpEvent
*/
static void initDataEvent(struct viocharlpevent *viochar, HvLpIndex lp)
{
memset(viochar, 0, sizeof(struct viocharlpevent));
viochar->event.xFlags.xValid = 1;
viochar->event.xFlags.xFunction = HvLpEvent_Function_Int;
viochar->event.xFlags.xAckInd = HvLpEvent_AckInd_NoAck;
viochar->event.xFlags.xAckType = HvLpEvent_AckType_DeferredAck;
viochar->event.xType = HvLpEvent_Type_VirtualIo;
viochar->event.xSubtype = viomajorsubtype_chario | viochardata;
viochar->event.xSourceLp = HvLpConfig_getLpIndex();
viochar->event.xTargetLp = lp;
viochar->event.xSizeMinus1 = sizeof(struct viocharlpevent);
viochar->event.xSourceInstanceId = viopath_sourceinst(lp);
viochar->event.xTargetInstanceId = viopath_targetinst(lp);
}
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);
}
