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path: root/drivers/staging/unisys/uislib/uislib.c
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Diffstat (limited to 'drivers/staging/unisys/uislib/uislib.c')
-rw-r--r--drivers/staging/unisys/uislib/uislib.c225
1 files changed, 35 insertions, 190 deletions
diff --git a/drivers/staging/unisys/uislib/uislib.c b/drivers/staging/unisys/uislib/uislib.c
index a9eeddeba735..f93d0bb11b12 100644
--- a/drivers/staging/unisys/uislib/uislib.c
+++ b/drivers/staging/unisys/uislib/uislib.c
@@ -29,7 +29,6 @@
#include <linux/uuid.h>
#include <linux/version.h>
-#include "uniklog.h"
#include "diagnostics/appos_subsystems.h"
#include "uisutils.h"
#include "vbuschannel.h"
@@ -132,14 +131,10 @@ static __iomem void *init_vbus_channel(u64 ch_addr, u32 ch_bytes)
{
void __iomem *ch = uislib_ioremap_cache(ch_addr, ch_bytes);
- if (!ch) {
- LOGERR("CONTROLVM_BUS_CREATE error: ioremap_cache of channelAddr:%Lx for channelBytes:%llu failed",
- (unsigned long long)ch_addr,
- (unsigned long long)ch_bytes);
+ if (!ch)
return NULL;
- }
+
if (!SPAR_VBUS_CHANNEL_OK_CLIENT(ch)) {
- ERRDRV("%s channel cannot be used", __func__);
uislib_iounmap(ch);
return NULL;
}
@@ -154,8 +149,6 @@ create_bus(struct controlvm_message *msg, char *buf)
size_t size;
if (max_bus_count == bus_list_count) {
- LOGERR("CONTROLVM_BUS_CREATE Failed: max buses:%d already created\n",
- max_bus_count);
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, max_bus_count,
POSTCODE_SEVERITY_ERR);
return CONTROLVM_RESP_ERROR_MAX_BUSES;
@@ -172,7 +165,6 @@ create_bus(struct controlvm_message *msg, char *buf)
(dev_count * sizeof(struct device_info *));
bus = kzalloc(size, GFP_ATOMIC);
if (!bus) {
- LOGERR("CONTROLVM_BUS_CREATE Failed: kmalloc for bus failed.\n");
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
POSTCODE_SEVERITY_ERR);
return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -209,8 +201,6 @@ create_bus(struct controlvm_message *msg, char *buf)
/* found a bus already in the list with same bus_no -
* reject add
*/
- LOGERR("CONTROLVM_BUS_CREATE Failed: bus %d already exists.\n",
- bus->bus_no);
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
POSTCODE_SEVERITY_ERR);
kfree(bus);
@@ -234,14 +224,12 @@ create_bus(struct controlvm_message *msg, char *buf)
cmd.add_vbus.bus_uuid = msg->cmd.create_bus.bus_data_type_uuid;
cmd.add_vbus.instance_uuid = msg->cmd.create_bus.bus_inst_uuid;
if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci callback not registered.");
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
POSTCODE_SEVERITY_ERR);
kfree(bus);
return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
}
if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_BUS_CREATE Failed: virtpci GUEST_ADD_VBUS returned error.");
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no,
POSTCODE_SEVERITY_ERR);
kfree(bus);
@@ -287,17 +275,13 @@ destroy_bus(struct controlvm_message *msg, char *buf)
}
if (!bus) {
- LOGERR("CONTROLVM_BUS_DESTROY Failed: failed to find bus %d.\n",
- bus_no);
read_unlock(&bus_list_lock);
return CONTROLVM_RESP_ERROR_ALREADY_DONE;
}
/* verify that this bus has no devices. */
for (i = 0; i < bus->device_count; i++) {
- if (bus->device[i] != NULL) {
- LOGERR("CONTROLVM_BUS_DESTROY Failed: device %i attached to bus %d.",
- i, bus_no);
+ if (bus->device[i]) {
read_unlock(&bus_list_lock);
return CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED;
}
@@ -311,14 +295,11 @@ destroy_bus(struct controlvm_message *msg, char *buf)
with this bus. */
cmd.msgtype = GUEST_DEL_VBUS;
cmd.del_vbus.bus_no = bus_no;
- if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci callback not registered.");
+ if (!virt_control_chan_func)
return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
- }
- if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_BUS_DESTROY Failed: virtpci GUEST_DEL_VBUS returned error.");
+
+ if (!virt_control_chan_func(&cmd))
return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
- }
/* finally, remove the bus from the list */
remove:
@@ -357,7 +338,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
dev = kzalloc(sizeof(*dev), GFP_ATOMIC);
if (!dev) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: kmalloc for dev failed.\n");
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
return CONTROLVM_RESP_ERROR_KMALLOC_FAILED;
@@ -381,9 +361,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
*/
min_size = req_handler->min_channel_bytes;
if (min_size > msg->cmd.create_device.channel_bytes) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: channel size is too small, channel size:0x%lx, required size:0x%lx",
- (ulong)msg->cmd.create_device.channel_bytes,
- (ulong)min_size);
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
result = CONTROLVM_RESP_ERROR_CHANNEL_SIZE_TOO_SMALL;
@@ -393,9 +370,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
uislib_ioremap_cache(dev->channel_addr,
msg->cmd.create_device.channel_bytes);
if (!dev->chanptr) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: ioremap_cache of channelAddr:%Lx for channelBytes:%llu failed",
- dev->channel_addr,
- msg->cmd.create_device.channel_bytes);
result = CONTROLVM_RESP_ERROR_IOREMAP_FAILED;
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
@@ -411,8 +385,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
continue;
/* make sure the device number is valid */
if (dev_no >= bus->device_count) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: device (%d) >= deviceCount (%d).",
- dev_no, bus->device_count);
result = CONTROLVM_RESP_ERROR_MAX_DEVICES;
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
@@ -421,8 +393,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
}
/* make sure this device is not already set */
if (bus->device[dev_no]) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: device %d is already exists.",
- dev_no);
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
@@ -445,8 +415,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
wait_for_valid_guid(&((struct channel_header __iomem *)
(dev->chanptr))->chtype);
if (!SPAR_VHBA_CHANNEL_OK_CLIENT(dev->chanptr)) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed:[CLIENT]VHBA dev %d chan invalid.",
- dev_no);
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
@@ -464,8 +432,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
wait_for_valid_guid(&((struct channel_header __iomem *)
(dev->chanptr))->chtype);
if (!SPAR_VNIC_CHANNEL_OK_CLIENT(dev->chanptr)) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: VNIC[CLIENT] dev %d chan invalid.",
- dev_no);
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC,
dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
@@ -479,7 +445,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
cmd.add_vnic.instance_uuid = dev->instance_uuid;
cmd.add_vhba.intr = dev->intr;
} else {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: unknown channelTypeGuid.\n");
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
result = CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
@@ -487,7 +452,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
}
if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci callback not registered.");
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
result = CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
@@ -495,7 +459,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
}
if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: virtpci GUEST_ADD_[VHBA||VNIC] returned error.");
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no,
bus_no, POSTCODE_SEVERITY_ERR);
result =
@@ -510,8 +473,6 @@ static int create_device(struct controlvm_message *msg, char *buf)
}
read_unlock(&bus_list_lock);
- LOGERR("CONTROLVM_DEVICE_CREATE Failed: failed to find bus %d.",
- bus_no);
POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
result = CONTROLVM_RESP_ERROR_BUS_INVALID;
@@ -542,15 +503,11 @@ static int pause_device(struct controlvm_message *msg)
if (bus->bus_no == bus_no) {
/* make sure the device number is valid */
if (dev_no >= bus->device_count) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: device(%d) >= deviceCount(%d).",
- dev_no, bus->device_count);
retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
} else {
/* make sure this device exists */
dev = bus->device[dev_no];
if (!dev) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: device %d does not exist.",
- dev_no);
retval =
CONTROLVM_RESP_ERROR_ALREADY_DONE;
}
@@ -558,11 +515,9 @@ static int pause_device(struct controlvm_message *msg)
break;
}
}
- if (!bus) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: bus %d does not exist",
- bus_no);
+ if (!bus)
retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
- }
+
read_unlock(&bus_list_lock);
if (retval == CONTROLVM_RESP_SUCCESS) {
/* the msg is bound for virtpci; send
@@ -577,15 +532,11 @@ static int pause_device(struct controlvm_message *msg)
cmd.msgtype = GUEST_PAUSE_VNIC;
cmd.pause_vnic.chanptr = dev->chanptr;
} else {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: unknown channelTypeGuid.\n");
return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
}
- if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci callback not registered.");
+ if (!virt_control_chan_func)
return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
- }
if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:pause Failed: virtpci GUEST_PAUSE_[VHBA||VNIC] returned error.");
return
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
}
@@ -609,15 +560,11 @@ static int resume_device(struct controlvm_message *msg)
if (bus->bus_no == bus_no) {
/* make sure the device number is valid */
if (dev_no >= bus->device_count) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: device(%d) >= deviceCount(%d).",
- dev_no, bus->device_count);
retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
} else {
/* make sure this device exists */
dev = bus->device[dev_no];
if (!dev) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: device %d does not exist.",
- dev_no);
retval =
CONTROLVM_RESP_ERROR_ALREADY_DONE;
}
@@ -626,11 +573,9 @@ static int resume_device(struct controlvm_message *msg)
}
}
- if (!bus) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: bus %d does not exist",
- bus_no);
+ if (!bus)
retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
- }
+
read_unlock(&bus_list_lock);
/* the msg is bound for virtpci; send
* guest_msgs struct to callback
@@ -645,15 +590,11 @@ static int resume_device(struct controlvm_message *msg)
cmd.msgtype = GUEST_RESUME_VNIC;
cmd.resume_vnic.chanptr = dev->chanptr;
} else {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: unknown channelTypeGuid.\n");
return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
}
- if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: virtpci callback not registered.");
+ if (!virt_control_chan_func)
return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
- }
if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_DEVICE_CHANGESTATE:resume Failed: virtpci GUEST_RESUME_[VHBA||VNIC] returned error.");
return
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
}
@@ -673,21 +614,15 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
dev_no = msg->cmd.destroy_device.bus_no;
read_lock(&bus_list_lock);
- LOGINF("destroy_device called for bus_no=%u, dev_no=%u", bus_no,
- dev_no);
for (bus = bus_list; bus; bus = bus->next) {
if (bus->bus_no == bus_no) {
/* make sure the device number is valid */
if (dev_no >= bus->device_count) {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: device(%d) >= device_count(%d).",
- dev_no, bus->device_count);
retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID;
} else {
/* make sure this device exists */
dev = bus->device[dev_no];
if (!dev) {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: device %d does not exist.",
- dev_no);
retval =
CONTROLVM_RESP_ERROR_ALREADY_DONE;
}
@@ -696,11 +631,8 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
}
}
- if (!bus) {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: bus %d does not exist",
- bus_no);
+ if (!bus)
retval = CONTROLVM_RESP_ERROR_BUS_INVALID;
- }
read_unlock(&bus_list_lock);
if (retval == CONTROLVM_RESP_SUCCESS) {
/* the msg is bound for virtpci; send
@@ -715,17 +647,14 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
cmd.msgtype = GUEST_DEL_VNIC;
cmd.del_vnic.chanptr = dev->chanptr;
} else {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: unknown channelTypeGuid.\n");
return
CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN;
}
if (!virt_control_chan_func) {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: virtpci callback not registered.");
return
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE;
}
if (!virt_control_chan_func(&cmd)) {
- LOGERR("CONTROLVM_DEVICE_DESTROY Failed: virtpci GUEST_DEL_[VHBA||VNIC] returned error.");
return
CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR;
}
@@ -734,15 +663,11 @@ static int destroy_device(struct controlvm_message *msg, char *buf)
* on which accesses the channel and you will get a "unable to handle
* kernel paging request"
*/
- if (dev->polling) {
- LOGINF("calling uislib_disable_channel_interrupts");
+ if (dev->polling)
uislib_disable_channel_interrupts(bus_no, dev_no);
- }
/* unmap the channel memory for the device. */
- if (!msg->hdr.flags.test_message) {
- LOGINF("destroy_device, doing iounmap");
+ if (!msg->hdr.flags.test_message)
uislib_iounmap(dev->chanptr);
- }
kfree(dev);
bus->device[dev_no] = NULL;
}
@@ -780,10 +705,8 @@ static int delete_bus_glue(u32 bus_no)
init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0);
msg.cmd.destroy_bus.bus_no = bus_no;
- if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("destroy_bus failed. bus_no=0x%x\n", bus_no);
+ if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
return 0;
- }
return 1;
}
@@ -794,11 +717,8 @@ static int delete_device_glue(u32 bus_no, u32 dev_no)
init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, 0);
msg.cmd.destroy_device.bus_no = bus_no;
msg.cmd.destroy_device.dev_no = dev_no;
- if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("destroy_device failed. bus_no=0x%x dev_no=0x%x\n",
- bus_no, dev_no);
+ if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
return 0;
- }
return 1;
}
@@ -808,7 +728,6 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
{
struct controlvm_message msg;
- LOGINF("enter busNo=0x%x\n", bus_no);
/* step 0: init the chipset */
POSTCODE_LINUX_3(CHIPSET_INIT_ENTRY_PC, bus_no, POSTCODE_SEVERITY_INFO);
@@ -824,11 +743,8 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
*/
msg.cmd.init_chipset.bus_count = 23;
msg.cmd.init_chipset.switch_count = 0;
- if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("init_chipset failed.\n");
+ if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS)
return 0;
- }
- LOGINF("chipset initialized\n");
POSTCODE_LINUX_3(CHIPSET_INIT_EXIT_PC, bus_no,
POSTCODE_SEVERITY_INFO);
}
@@ -842,7 +758,6 @@ uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid,
msg.cmd.create_bus.channel_addr = channel_addr;
msg.cmd.create_bus.channel_bytes = n_channel_bytes;
if (create_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("create_bus failed.\n");
POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no,
POSTCODE_SEVERITY_ERR);
return 0;
@@ -871,11 +786,8 @@ uislib_client_inject_pause_vhba(u32 bus_no, u32 dev_no)
msg.cmd.device_change_state.dev_no = dev_no;
msg.cmd.device_change_state.state = segment_state_standby;
rc = pause_device(&msg);
- if (rc != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VHBA pause_device failed. busNo=0x%x devNo=0x%x\n",
- bus_no, dev_no);
+ if (rc != CONTROLVM_RESP_SUCCESS)
return rc;
- }
return 0;
}
EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vhba);
@@ -891,11 +803,8 @@ uislib_client_inject_resume_vhba(u32 bus_no, u32 dev_no)
msg.cmd.device_change_state.dev_no = dev_no;
msg.cmd.device_change_state.state = segment_state_running;
rc = resume_device(&msg);
- if (rc != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VHBA resume_device failed. busNo=0x%x devNo=0x%x\n",
- bus_no, dev_no);
+ if (rc != CONTROLVM_RESP_SUCCESS)
return rc;
- }
return 0;
}
EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vhba);
@@ -908,7 +817,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
{
struct controlvm_message msg;
- LOGINF(" enter busNo=0x%x devNo=0x%x\n", bus_no, dev_no);
/* chipset init'ed with bus bus has been previously created -
* Verify it still exists step 2: create the VHBA device on the
* bus
@@ -932,8 +840,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
sizeof(struct irq_info));
msg.cmd.create_device.channel_addr = phys_chan_addr;
if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
- LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE= 0x%x\n",
- chan_bytes, (unsigned int)MIN_IO_CHANNEL_SIZE);
POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, chan_bytes,
MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
return 0;
@@ -941,7 +847,6 @@ uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no,
msg.cmd.create_device.channel_bytes = chan_bytes;
msg.cmd.create_device.data_type_uuid = spar_vhba_channel_protocol_uuid;
if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VHBA create_device failed.\n");
POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
return 0;
@@ -967,7 +872,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
{
struct controlvm_message msg;
- LOGINF(" enter busNo=0x%x devNo=0x%x\n", bus_no, dev_no);
/* chipset init'ed with bus bus has been previously created -
* Verify it still exists step 2: create the VNIC device on the
* bus
@@ -991,8 +895,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
sizeof(struct irq_info));
msg.cmd.create_device.channel_addr = phys_chan_addr;
if (chan_bytes < MIN_IO_CHANNEL_SIZE) {
- LOGERR("wrong channel size.chan_bytes = 0x%x IO_CHANNEL_SIZE= 0x%x\n",
- chan_bytes, (unsigned int)MIN_IO_CHANNEL_SIZE);
POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, chan_bytes,
MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR);
return 0;
@@ -1000,7 +902,6 @@ uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no,
msg.cmd.create_device.channel_bytes = chan_bytes;
msg.cmd.create_device.data_type_uuid = spar_vnic_channel_protocol_uuid;
if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VNIC create_device failed.\n");
POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, dev_no, bus_no,
POSTCODE_SEVERITY_ERR);
return 0;
@@ -1023,11 +924,8 @@ uislib_client_inject_pause_vnic(u32 bus_no, u32 dev_no)
msg.cmd.device_change_state.dev_no = dev_no;
msg.cmd.device_change_state.state = segment_state_standby;
rc = pause_device(&msg);
- if (rc != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VNIC pause_device failed. busNo=0x%x devNo=0x%x\n",
- bus_no, dev_no);
+ if (rc != CONTROLVM_RESP_SUCCESS)
return -1;
- }
return 0;
}
EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vnic);
@@ -1043,11 +941,8 @@ uislib_client_inject_resume_vnic(u32 bus_no, u32 dev_no)
msg.cmd.device_change_state.dev_no = dev_no;
msg.cmd.device_change_state.state = segment_state_running;
rc = resume_device(&msg);
- if (rc != CONTROLVM_RESP_SUCCESS) {
- LOGERR("VNIC resume_device failed. busNo=0x%x devNo=0x%x\n",
- bus_no, dev_no);
+ if (rc != CONTROLVM_RESP_SUCCESS)
return -1;
- }
return 0;
}
EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vnic);
@@ -1069,11 +964,8 @@ uislib_cache_alloc(struct kmem_cache *cur_pool, char *fn, int ln)
*/
void *p = kmem_cache_alloc(cur_pool, GFP_ATOMIC | __GFP_NORETRY);
- if (p == NULL) {
- LOGERR("uislib_malloc failed to alloc uiscmdrsp @%s:%d",
- fn, ln);
+ if (!p)
return NULL;
- }
return p;
}
EXPORT_SYMBOL_GPL(uislib_cache_alloc);
@@ -1081,10 +973,8 @@ EXPORT_SYMBOL_GPL(uislib_cache_alloc);
void
uislib_cache_free(struct kmem_cache *cur_pool, void *p, char *fn, int ln)
{
- if (p == NULL) {
- LOGERR("uislib_free NULL pointer @%s:%d", fn, ln);
+ if (!p)
return;
- }
kmem_cache_free(cur_pool, p);
}
EXPORT_SYMBOL_GPL(uislib_cache_free);
@@ -1162,20 +1052,16 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf,
int remaining_bytes = PROC_READ_BUFFER_SIZE;
/* *start = buf; */
- if (debug_buf == NULL) {
- DBGINF("debug_buf == NULL; allocating buffer.\n.");
+ if (!debug_buf) {
debug_buf = vmalloc(PROC_READ_BUFFER_SIZE);
- if (debug_buf == NULL) {
- LOGERR("failed to allocate buffer to provide proc data.\n");
+ if (!debug_buf)
return -ENOMEM;
- }
}
temp = debug_buf;
if ((*offset == 0) || (!debug_buf_valid)) {
- DBGINF("calling info_debugfs_read_helper.\n");
/* if the read fails, then -1 will be returned */
total_bytes = info_debugfs_read_helper(&temp, &remaining_bytes);
debug_buf_valid = 1;
@@ -1196,17 +1082,9 @@ static struct device_info *find_dev(u32 bus_no, u32 dev_no)
for (bus = bus_list; bus; bus = bus->next) {
if (bus->bus_no == bus_no) {
/* make sure the device number is valid */
- if (dev_no >= bus->device_count) {
- LOGERR("%s bad bus_no, dev_no=%d,%d",
- __func__,
- (int)bus_no, (int)dev_no);
+ if (dev_no >= bus->device_count)
break;
- }
dev = bus->device[dev_no];
- if (!dev)
- LOGERR("%s bad bus_no, dev_no=%d,%d",
- __func__,
- (int)bus_no, (int)dev_no);
break;
}
}
@@ -1253,7 +1131,6 @@ static int process_incoming(void *v)
wait_cycles = (cur_cycles - old_cycles);
}
}
- LOGINF("wait_cycles=%llu", wait_cycles);
cycles_before_wait = wait_cycles;
idle_cycles = 0;
poll_dev_start = 0;
@@ -1281,7 +1158,7 @@ static int process_incoming(void *v)
* Reschedule work to occur as soon as
* possible. */
idle_cycles = 0;
- if (new_tail == NULL) {
+ if (!new_tail) {
dev->first_busy_cnt++;
if (!
(list_is_last
@@ -1294,10 +1171,10 @@ static int process_incoming(void *v)
}
}
}
- if (incoming_ti.should_stop)
+ if (kthread_should_stop())
break;
}
- if (new_tail != NULL) {
+ if (new_tail) {
tot_moved_to_tail_cnt++;
list_move_tail(new_tail, &poll_dev_chan);
}
@@ -1311,12 +1188,10 @@ static int process_incoming(void *v)
* - there is no input waiting on any of the channels
* - we have received a signal to stop this thread
*/
- if (incoming_ti.should_stop)
+ if (kthread_should_stop())
break;
- if (en_smart_wakeup == 0xFF) {
- LOGINF("en_smart_wakeup set to 0xff, to force exiting process_incoming");
+ if (en_smart_wakeup == 0xFF)
break;
- }
/* wait for POLLJIFFIES_NORMAL jiffies, or until
* someone wakes up poll_dev_wake_q,
* whichever comes first only do a wait when we have
@@ -1335,7 +1210,6 @@ static int process_incoming(void *v)
idle_cycles = idle_cycles + delta_cycles;
}
}
- DBGINF("exiting.\n");
complete_and_exit(&incoming_ti.has_stopped, 0);
}
@@ -1346,7 +1220,6 @@ initialize_incoming_thread(void)
return TRUE;
if (!uisthread_start(&incoming_ti,
&process_incoming, NULL, "dev_incoming")) {
- LOGERR("uisthread_start initialize_incoming_thread ****FAILED");
return FALSE;
}
incoming_started = TRUE;
@@ -1367,11 +1240,9 @@ uislib_enable_channel_interrupts(u32 bus_no, u32 dev_no,
struct device_info *dev;
dev = find_dev(bus_no, dev_no);
- if (!dev) {
- LOGERR("%s busNo=%d, devNo=%d", __func__, (int)(bus_no),
- (int)(dev_no));
+ if (!dev)
return;
- }
+
down(&poll_dev_lock);
initialize_incoming_thread();
dev->interrupt = interrupt;
@@ -1392,11 +1263,8 @@ uislib_disable_channel_interrupts(u32 bus_no, u32 dev_no)
struct device_info *dev;
dev = find_dev(bus_no, dev_no);
- if (!dev) {
- LOGERR("%s busNo=%d, devNo=%d", __func__, (int)(bus_no),
- (int)(dev_no));
+ if (!dev)
return;
- }
down(&poll_dev_lock);
list_del(&dev->list_polling_device_channels);
dev->polling = FALSE;
@@ -1446,27 +1314,6 @@ uislib_mod_init(void)
if (!unisys_spar_platform)
return -ENODEV;
- LOGINF("MONITORAPIS");
-
- LOGINF("sizeof(struct uiscmdrsp):%lu bytes\n",
- (ulong)sizeof(struct uiscmdrsp));
- LOGINF("sizeof(struct phys_info):%lu\n",
- (ulong)sizeof(struct phys_info));
- LOGINF("sizeof(uiscmdrsp_scsi):%lu\n",
- (ulong)sizeof(struct uiscmdrsp_scsi));
- LOGINF("sizeof(uiscmdrsp_net):%lu\n",
- (ulong)sizeof(struct uiscmdrsp_net));
- LOGINF("sizeof(CONTROLVM_MESSAGE):%lu bytes\n",
- (ulong)sizeof(struct controlvm_message));
- LOGINF("sizeof(struct spar_controlvm_channel_protocol):%lu bytes\n",
- (ulong)sizeof(struct spar_controlvm_channel_protocol));
- LOGINF("sizeof(CHANNEL_HEADER):%lu bytes\n",
- (ulong)sizeof(struct channel_header));
- LOGINF("sizeof(struct spar_io_channel_protocol):%lu bytes\n",
- (ulong)sizeof(struct spar_io_channel_protocol));
- LOGINF("SIZEOF_CMDRSP:%lu bytes\n", SIZEOF_CMDRSP);
- LOGINF("SIZEOF_PROTOCOL:%lu bytes\n", SIZEOF_PROTOCOL);
-
/* initialize global pointers to NULL */
bus_list = NULL;
bus_list_count = 0;
@@ -1514,8 +1361,6 @@ uislib_mod_exit(void)
debugfs_remove(cycles_before_wait_debugfs_read);
debugfs_remove(platformnumber_debugfs_read);
debugfs_remove(dir_debugfs);
-
- DBGINF("goodbye.\n");
}
module_init(uislib_mod_init);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.