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-rw-r--r--drivers/hv/channel.c50
-rw-r--r--drivers/hv/channel_mgmt.c5
-rw-r--r--drivers/hv/connection.c23
-rw-r--r--drivers/hv/hv.c2
-rw-r--r--drivers/hv/hv_kvp.c38
-rw-r--r--drivers/hv/hv_snapshot.c6
-rw-r--r--drivers/hv/hv_util.c73
-rw-r--r--drivers/hv/hyperv_vmbus.h9
-rw-r--r--drivers/hv/vmbus_drv.c488
9 files changed, 441 insertions, 253 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 6de6c98ce6eb..cea623c36ae2 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -47,8 +47,8 @@ static void vmbus_setevent(struct vmbus_channel *channel)
(unsigned long *) vmbus_connection.send_int_page +
(channel->offermsg.child_relid >> 5));
- monitorpage = vmbus_connection.monitor_pages;
- monitorpage++; /* Get the child to parent monitor page */
+ /* Get the child to parent monitor page */
+ monitorpage = vmbus_connection.monitor_pages[1];
sync_set_bit(channel->monitor_bit,
(unsigned long *)&monitorpage->trigger_group
@@ -60,50 +60,6 @@ static void vmbus_setevent(struct vmbus_channel *channel)
}
/*
- * vmbus_get_debug_info -Retrieve various channel debug info
- */
-void vmbus_get_debug_info(struct vmbus_channel *channel,
- struct vmbus_channel_debug_info *debuginfo)
-{
- struct hv_monitor_page *monitorpage;
- u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
- u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
-
- debuginfo->relid = channel->offermsg.child_relid;
- debuginfo->state = channel->state;
- memcpy(&debuginfo->interfacetype,
- &channel->offermsg.offer.if_type, sizeof(uuid_le));
- memcpy(&debuginfo->interface_instance,
- &channel->offermsg.offer.if_instance,
- sizeof(uuid_le));
-
- monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages;
-
- debuginfo->monitorid = channel->offermsg.monitorid;
-
- debuginfo->servermonitor_pending =
- monitorpage->trigger_group[monitor_group].pending;
- debuginfo->servermonitor_latency =
- monitorpage->latency[monitor_group][monitor_offset];
- debuginfo->servermonitor_connectionid =
- monitorpage->parameter[monitor_group]
- [monitor_offset].connectionid.u.id;
-
- monitorpage++;
-
- debuginfo->clientmonitor_pending =
- monitorpage->trigger_group[monitor_group].pending;
- debuginfo->clientmonitor_latency =
- monitorpage->latency[monitor_group][monitor_offset];
- debuginfo->clientmonitor_connectionid =
- monitorpage->parameter[monitor_group]
- [monitor_offset].connectionid.u.id;
-
- hv_ringbuffer_get_debuginfo(&channel->inbound, &debuginfo->inbound);
- hv_ringbuffer_get_debuginfo(&channel->outbound, &debuginfo->outbound);
-}
-
-/*
* vmbus_open - Open the specified channel.
*/
int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
@@ -855,6 +811,6 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer,
if (signal)
vmbus_setevent(channel);
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(vmbus_recvpacket_raw);
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index bbff5f200bef..fa920469bf10 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -203,7 +203,8 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
struct vmbus_channel *primary_channel;
struct vmbus_channel_relid_released msg;
- vmbus_device_unregister(channel->device_obj);
+ if (channel->device_obj)
+ vmbus_device_unregister(channel->device_obj);
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = channel->offermsg.child_relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
@@ -216,7 +217,7 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
} else {
primary_channel = channel->primary_channel;
spin_lock_irqsave(&primary_channel->sc_lock, flags);
- list_del(&channel->listentry);
+ list_del(&channel->sc_list);
spin_unlock_irqrestore(&primary_channel->sc_lock, flags);
}
free_channel(channel);
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 8f4743ab5fb2..af6edf9b1936 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -76,10 +76,8 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo,
msg->header.msgtype = CHANNELMSG_INITIATE_CONTACT;
msg->vmbus_version_requested = version;
msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);
- msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages);
- msg->monitor_page2 = virt_to_phys(
- (void *)((unsigned long)vmbus_connection.monitor_pages +
- PAGE_SIZE));
+ msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);
+ msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);
/*
* Add to list before we send the request since we may
@@ -169,9 +167,10 @@ int vmbus_connect(void)
* Setup the monitor notification facility. The 1st page for
* parent->child and the 2nd page for child->parent
*/
- vmbus_connection.monitor_pages =
- (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 1);
- if (vmbus_connection.monitor_pages == NULL) {
+ vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
+ vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
+ if ((vmbus_connection.monitor_pages[0] == NULL) ||
+ (vmbus_connection.monitor_pages[1] == NULL)) {
ret = -ENOMEM;
goto cleanup;
}
@@ -195,7 +194,7 @@ int vmbus_connect(void)
do {
ret = vmbus_negotiate_version(msginfo, version);
- if (ret)
+ if (ret == -ETIMEDOUT)
goto cleanup;
if (vmbus_connection.conn_state == CONNECTED)
@@ -229,10 +228,10 @@ cleanup:
vmbus_connection.int_page = NULL;
}
- if (vmbus_connection.monitor_pages) {
- free_pages((unsigned long)vmbus_connection.monitor_pages, 1);
- vmbus_connection.monitor_pages = NULL;
- }
+ free_pages((unsigned long)vmbus_connection.monitor_pages[0], 1);
+ free_pages((unsigned long)vmbus_connection.monitor_pages[1], 1);
+ vmbus_connection.monitor_pages[0] = NULL;
+ vmbus_connection.monitor_pages[1] = NULL;
kfree(msginfo);
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 88f4096fa078..f0c5e07c25ec 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -304,7 +304,7 @@ err:
void hv_synic_free_cpu(int cpu)
{
kfree(hv_context.event_dpc[cpu]);
- if (hv_context.synic_message_page[cpu])
+ if (hv_context.synic_event_page[cpu])
free_page((unsigned long)hv_context.synic_event_page[cpu]);
if (hv_context.synic_message_page[cpu])
free_page((unsigned long)hv_context.synic_message_page[cpu]);
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 28b03325b872..09988b289622 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -32,13 +32,17 @@
/*
* Pre win8 version numbers used in ws2008 and ws 2008 r2 (win7)
*/
+#define WS2008_SRV_MAJOR 1
+#define WS2008_SRV_MINOR 0
+#define WS2008_SRV_VERSION (WS2008_SRV_MAJOR << 16 | WS2008_SRV_MINOR)
+
#define WIN7_SRV_MAJOR 3
#define WIN7_SRV_MINOR 0
-#define WIN7_SRV_MAJOR_MINOR (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
+#define WIN7_SRV_VERSION (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
#define WIN8_SRV_MAJOR 4
#define WIN8_SRV_MINOR 0
-#define WIN8_SRV_MAJOR_MINOR (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
+#define WIN8_SRV_VERSION (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
/*
* Global state maintained for transaction that is being processed.
@@ -587,6 +591,8 @@ void hv_kvp_onchannelcallback(void *context)
struct icmsg_hdr *icmsghdrp;
struct icmsg_negotiate *negop = NULL;
+ int util_fw_version;
+ int kvp_srv_version;
if (kvp_transaction.active) {
/*
@@ -606,17 +612,26 @@ void hv_kvp_onchannelcallback(void *context)
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
/*
- * We start with win8 version and if the host cannot
- * support that we use the previous version.
+ * Based on the host, select appropriate
+ * framework and service versions we will
+ * negotiate.
*/
- if (vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- WIN8_SRV_MAJOR_MINOR))
- goto done;
-
+ switch (vmbus_proto_version) {
+ case (VERSION_WS2008):
+ util_fw_version = UTIL_WS2K8_FW_VERSION;
+ kvp_srv_version = WS2008_SRV_VERSION;
+ break;
+ case (VERSION_WIN7):
+ util_fw_version = UTIL_FW_VERSION;
+ kvp_srv_version = WIN7_SRV_VERSION;
+ break;
+ default:
+ util_fw_version = UTIL_FW_VERSION;
+ kvp_srv_version = WIN8_SRV_VERSION;
+ }
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- WIN7_SRV_MAJOR_MINOR);
+ recv_buffer, util_fw_version,
+ kvp_srv_version);
} else {
kvp_msg = (struct hv_kvp_msg *)&recv_buffer[
@@ -649,7 +664,6 @@ void hv_kvp_onchannelcallback(void *context)
return;
}
-done:
icmsghdrp->icflags = ICMSGHDRFLAG_TRANSACTION
| ICMSGHDRFLAG_RESPONSE;
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index e4572f3f2834..0c3546224376 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -26,7 +26,7 @@
#define VSS_MAJOR 5
#define VSS_MINOR 0
-#define VSS_MAJOR_MINOR (VSS_MAJOR << 16 | VSS_MINOR)
+#define VSS_VERSION (VSS_MAJOR << 16 | VSS_MINOR)
@@ -190,8 +190,8 @@ void hv_vss_onchannelcallback(void *context)
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- VSS_MAJOR_MINOR);
+ recv_buffer, UTIL_FW_VERSION,
+ VSS_VERSION);
} else {
vss_msg = (struct hv_vss_msg *)&recv_buffer[
sizeof(struct vmbuspipe_hdr) +
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index cb82233541b1..62dfd246b948 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -28,17 +28,32 @@
#include <linux/reboot.h>
#include <linux/hyperv.h>
-#define SHUTDOWN_MAJOR 3
-#define SHUTDOWN_MINOR 0
-#define SHUTDOWN_MAJOR_MINOR (SHUTDOWN_MAJOR << 16 | SHUTDOWN_MINOR)
-#define TIMESYNCH_MAJOR 3
-#define TIMESYNCH_MINOR 0
-#define TIMESYNCH_MAJOR_MINOR (TIMESYNCH_MAJOR << 16 | TIMESYNCH_MINOR)
+#define SD_MAJOR 3
+#define SD_MINOR 0
+#define SD_VERSION (SD_MAJOR << 16 | SD_MINOR)
-#define HEARTBEAT_MAJOR 3
-#define HEARTBEAT_MINOR 0
-#define HEARTBEAT_MAJOR_MINOR (HEARTBEAT_MAJOR << 16 | HEARTBEAT_MINOR)
+#define SD_WS2008_MAJOR 1
+#define SD_WS2008_VERSION (SD_WS2008_MAJOR << 16 | SD_MINOR)
+
+#define TS_MAJOR 3
+#define TS_MINOR 0
+#define TS_VERSION (TS_MAJOR << 16 | TS_MINOR)
+
+#define TS_WS2008_MAJOR 1
+#define TS_WS2008_VERSION (TS_WS2008_MAJOR << 16 | TS_MINOR)
+
+#define HB_MAJOR 3
+#define HB_MINOR 0
+#define HB_VERSION (HB_MAJOR << 16 | HB_MINOR)
+
+#define HB_WS2008_MAJOR 1
+#define HB_WS2008_VERSION (HB_WS2008_MAJOR << 16 | HB_MINOR)
+
+static int sd_srv_version;
+static int ts_srv_version;
+static int hb_srv_version;
+static int util_fw_version;
static void shutdown_onchannelcallback(void *context);
static struct hv_util_service util_shutdown = {
@@ -82,7 +97,7 @@ static void shutdown_onchannelcallback(void *context)
struct vmbus_channel *channel = context;
u32 recvlen;
u64 requestid;
- u8 execute_shutdown = false;
+ bool execute_shutdown = false;
u8 *shut_txf_buf = util_shutdown.recv_buffer;
struct shutdown_msg_data *shutdown_msg;
@@ -99,8 +114,8 @@ static void shutdown_onchannelcallback(void *context)
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- shut_txf_buf, UTIL_FW_MAJOR_MINOR,
- SHUTDOWN_MAJOR_MINOR);
+ shut_txf_buf, util_fw_version,
+ sd_srv_version);
} else {
shutdown_msg =
(struct shutdown_msg_data *)&shut_txf_buf[
@@ -216,6 +231,7 @@ static void timesync_onchannelcallback(void *context)
struct icmsg_hdr *icmsghdrp;
struct ictimesync_data *timedatap;
u8 *time_txf_buf = util_timesynch.recv_buffer;
+ struct icmsg_negotiate *negop = NULL;
vmbus_recvpacket(channel, time_txf_buf,
PAGE_SIZE, &recvlen, &requestid);
@@ -225,9 +241,10 @@ static void timesync_onchannelcallback(void *context)
sizeof(struct vmbuspipe_hdr)];
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
- vmbus_prep_negotiate_resp(icmsghdrp, NULL, time_txf_buf,
- UTIL_FW_MAJOR_MINOR,
- TIMESYNCH_MAJOR_MINOR);
+ vmbus_prep_negotiate_resp(icmsghdrp, negop,
+ time_txf_buf,
+ util_fw_version,
+ ts_srv_version);
} else {
timedatap = (struct ictimesync_data *)&time_txf_buf[
sizeof(struct vmbuspipe_hdr) +
@@ -257,6 +274,7 @@ static void heartbeat_onchannelcallback(void *context)
struct icmsg_hdr *icmsghdrp;
struct heartbeat_msg_data *heartbeat_msg;
u8 *hbeat_txf_buf = util_heartbeat.recv_buffer;
+ struct icmsg_negotiate *negop = NULL;
vmbus_recvpacket(channel, hbeat_txf_buf,
PAGE_SIZE, &recvlen, &requestid);
@@ -266,9 +284,9 @@ static void heartbeat_onchannelcallback(void *context)
sizeof(struct vmbuspipe_hdr)];
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
- vmbus_prep_negotiate_resp(icmsghdrp, NULL,
- hbeat_txf_buf, UTIL_FW_MAJOR_MINOR,
- HEARTBEAT_MAJOR_MINOR);
+ vmbus_prep_negotiate_resp(icmsghdrp, negop,
+ hbeat_txf_buf, util_fw_version,
+ hb_srv_version);
} else {
heartbeat_msg =
(struct heartbeat_msg_data *)&hbeat_txf_buf[
@@ -321,6 +339,25 @@ static int util_probe(struct hv_device *dev,
goto error;
hv_set_drvdata(dev, srv);
+ /*
+ * Based on the host; initialize the framework and
+ * service version numbers we will negotiate.
+ */
+ switch (vmbus_proto_version) {
+ case (VERSION_WS2008):
+ util_fw_version = UTIL_WS2K8_FW_VERSION;
+ sd_srv_version = SD_WS2008_VERSION;
+ ts_srv_version = TS_WS2008_VERSION;
+ hb_srv_version = HB_WS2008_VERSION;
+ break;
+
+ default:
+ util_fw_version = UTIL_FW_VERSION;
+ sd_srv_version = SD_VERSION;
+ ts_srv_version = TS_VERSION;
+ hb_srv_version = HB_VERSION;
+ }
+
return 0;
error:
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index d84918fe19ab..e05517616a06 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -514,6 +514,13 @@ struct hv_context {
extern struct hv_context hv_context;
+struct hv_ring_buffer_debug_info {
+ u32 current_interrupt_mask;
+ u32 current_read_index;
+ u32 current_write_index;
+ u32 bytes_avail_toread;
+ u32 bytes_avail_towrite;
+};
/* Hv Interface */
@@ -612,7 +619,7 @@ struct vmbus_connection {
* 2 pages - 1st page for parent->child notification and 2nd
* is child->parent notification
*/
- void *monitor_pages;
+ struct hv_monitor_page *monitor_pages[2];
struct list_head chn_msg_list;
spinlock_t channelmsg_lock;
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index f9fe46f52cfa..48aad4faea06 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -46,24 +46,6 @@ static struct tasklet_struct msg_dpc;
static struct completion probe_event;
static int irq;
-struct hv_device_info {
- u32 chn_id;
- u32 chn_state;
- uuid_le chn_type;
- uuid_le chn_instance;
-
- u32 monitor_id;
- u32 server_monitor_pending;
- u32 server_monitor_latency;
- u32 server_monitor_conn_id;
- u32 client_monitor_pending;
- u32 client_monitor_latency;
- u32 client_monitor_conn_id;
-
- struct hv_dev_port_info inbound;
- struct hv_dev_port_info outbound;
-};
-
static int vmbus_exists(void)
{
if (hv_acpi_dev == NULL)
@@ -72,169 +54,361 @@ static int vmbus_exists(void)
return 0;
}
+#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
+static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
+{
+ int i;
+ for (i = 0; i < VMBUS_ALIAS_LEN; i += 2)
+ sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]);
+}
-static void get_channel_info(struct hv_device *device,
- struct hv_device_info *info)
+static u8 channel_monitor_group(struct vmbus_channel *channel)
{
- struct vmbus_channel_debug_info debug_info;
+ return (u8)channel->offermsg.monitorid / 32;
+}
- if (!device->channel)
- return;
+static u8 channel_monitor_offset(struct vmbus_channel *channel)
+{
+ return (u8)channel->offermsg.monitorid % 32;
+}
- vmbus_get_debug_info(device->channel, &debug_info);
+static u32 channel_pending(struct vmbus_channel *channel,
+ struct hv_monitor_page *monitor_page)
+{
+ u8 monitor_group = channel_monitor_group(channel);
+ return monitor_page->trigger_group[monitor_group].pending;
+}
- info->chn_id = debug_info.relid;
- info->chn_state = debug_info.state;
- memcpy(&info->chn_type, &debug_info.interfacetype,
- sizeof(uuid_le));
- memcpy(&info->chn_instance, &debug_info.interface_instance,
- sizeof(uuid_le));
+static u32 channel_latency(struct vmbus_channel *channel,
+ struct hv_monitor_page *monitor_page)
+{
+ u8 monitor_group = channel_monitor_group(channel);
+ u8 monitor_offset = channel_monitor_offset(channel);
+ return monitor_page->latency[monitor_group][monitor_offset];
+}
- info->monitor_id = debug_info.monitorid;
+static u32 channel_conn_id(struct vmbus_channel *channel,
+ struct hv_monitor_page *monitor_page)
+{
+ u8 monitor_group = channel_monitor_group(channel);
+ u8 monitor_offset = channel_monitor_offset(channel);
+ return monitor_page->parameter[monitor_group][monitor_offset].connectionid.u.id;
+}
- info->server_monitor_pending = debug_info.servermonitor_pending;
- info->server_monitor_latency = debug_info.servermonitor_latency;
- info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
+static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
- info->client_monitor_pending = debug_info.clientmonitor_pending;
- info->client_monitor_latency = debug_info.clientmonitor_latency;
- info->client_monitor_conn_id = debug_info.clientmonitor_connectionid;
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n", hv_dev->channel->offermsg.child_relid);
+}
+static DEVICE_ATTR_RO(id);
- info->inbound.int_mask = debug_info.inbound.current_interrupt_mask;
- info->inbound.read_idx = debug_info.inbound.current_read_index;
- info->inbound.write_idx = debug_info.inbound.current_write_index;
- info->inbound.bytes_avail_toread =
- debug_info.inbound.bytes_avail_toread;
- info->inbound.bytes_avail_towrite =
- debug_info.inbound.bytes_avail_towrite;
+static ssize_t state_show(struct device *dev, struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
- info->outbound.int_mask =
- debug_info.outbound.current_interrupt_mask;
- info->outbound.read_idx = debug_info.outbound.current_read_index;
- info->outbound.write_idx = debug_info.outbound.current_write_index;
- info->outbound.bytes_avail_toread =
- debug_info.outbound.bytes_avail_toread;
- info->outbound.bytes_avail_towrite =
- debug_info.outbound.bytes_avail_towrite;
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n", hv_dev->channel->state);
}
+static DEVICE_ATTR_RO(state);
-#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
-static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
+static ssize_t monitor_id_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
{
- int i;
- for (i = 0; i < VMBUS_ALIAS_LEN; i += 2)
- sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]);
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n", hv_dev->channel->offermsg.monitorid);
}
+static DEVICE_ATTR_RO(monitor_id);
-/*
- * vmbus_show_device_attr - Show the device attribute in sysfs.
- *
- * This is invoked when user does a
- * "cat /sys/bus/vmbus/devices/<busdevice>/<attr name>"
- */
-static ssize_t vmbus_show_device_attr(struct device *dev,
- struct device_attribute *dev_attr,
- char *buf)
+static ssize_t class_id_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "{%pUl}\n",
+ hv_dev->channel->offermsg.offer.if_type.b);
+}
+static DEVICE_ATTR_RO(class_id);
+
+static ssize_t device_id_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "{%pUl}\n",
+ hv_dev->channel->offermsg.offer.if_instance.b);
+}
+static DEVICE_ATTR_RO(device_id);
+
+static ssize_t modalias_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
{
struct hv_device *hv_dev = device_to_hv_device(dev);
- struct hv_device_info *device_info;
char alias_name[VMBUS_ALIAS_LEN + 1];
- int ret = 0;
- device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL);
- if (!device_info)
- return ret;
+ print_alias_name(hv_dev, alias_name);
+ return sprintf(buf, "vmbus:%s\n", alias_name);
+}
+static DEVICE_ATTR_RO(modalias);
- get_channel_info(hv_dev, device_info);
-
- if (!strcmp(dev_attr->attr.name, "class_id")) {
- ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b);
- } else if (!strcmp(dev_attr->attr.name, "device_id")) {
- ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
- } else if (!strcmp(dev_attr->attr.name, "modalias")) {
- print_alias_name(hv_dev, alias_name);
- ret = sprintf(buf, "vmbus:%s\n", alias_name);
- } else if (!strcmp(dev_attr->attr.name, "state")) {
- ret = sprintf(buf, "%d\n", device_info->chn_state);
- } else if (!strcmp(dev_attr->attr.name, "id")) {
- ret = sprintf(buf, "%d\n", device_info->chn_id);
- } else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
- ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
- } else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
- ret = sprintf(buf, "%d\n", device_info->outbound.read_idx);
- } else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
- ret = sprintf(buf, "%d\n", device_info->outbound.write_idx);
- } else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
- ret = sprintf(buf, "%d\n",
- device_info->outbound.bytes_avail_toread);
- } else if (!strcmp(dev_attr->attr.name, "out_write_bytes_avail")) {
- ret = sprintf(buf, "%d\n",
- device_info->outbound.bytes_avail_towrite);
- } else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
- ret = sprintf(buf, "%d\n", device_info->inbound.int_mask);
- } else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
- ret = sprintf(buf, "%d\n", device_info->inbound.read_idx);
- } else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
- ret = sprintf(buf, "%d\n", device_info->inbound.write_idx);
- } else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
- ret = sprintf(buf, "%d\n",
- device_info->inbound.bytes_avail_toread);
- } else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
- ret = sprintf(buf, "%d\n",
- device_info->inbound.bytes_avail_towrite);
- } else if (!strcmp(dev_attr->attr.name, "monitor_id")) {
- ret = sprintf(buf, "%d\n", device_info->monitor_id);
- } else if (!strcmp(dev_attr->attr.name, "server_monitor_pending")) {
- ret = sprintf(buf, "%d\n", device_info->server_monitor_pending);
- } else if (!strcmp(dev_attr->attr.name, "server_monitor_latency")) {
- ret = sprintf(buf, "%d\n", device_info->server_monitor_latency);
- } else if (!strcmp(dev_attr->attr.name, "server_monitor_conn_id")) {
- ret = sprintf(buf, "%d\n",
- device_info->server_monitor_conn_id);
- } else if (!strcmp(dev_attr->attr.name, "client_monitor_pending")) {
- ret = sprintf(buf, "%d\n", device_info->client_monitor_pending);
- } else if (!strcmp(dev_attr->attr.name, "client_monitor_latency")) {
- ret = sprintf(buf, "%d\n", device_info->client_monitor_latency);
- } else if (!strcmp(dev_attr->attr.name, "client_monitor_conn_id")) {
- ret = sprintf(buf, "%d\n",
- device_info->client_monitor_conn_id);
- }
+static ssize_t server_monitor_pending_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
- kfree(device_info);
- return ret;
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_pending(hv_dev->channel,
+ vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(server_monitor_pending);
+
+static ssize_t client_monitor_pending_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_pending(hv_dev->channel,
+ vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_pending);
+
+static ssize_t server_monitor_latency_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_latency(hv_dev->channel,
+ vmbus_connection.monitor_pages[0]));
+}
+static DEVICE_ATTR_RO(server_monitor_latency);
+
+static ssize_t client_monitor_latency_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_latency(hv_dev->channel,
+ vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_latency);
+
+static ssize_t server_monitor_conn_id_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_conn_id(hv_dev->channel,
+ vmbus_connection.monitor_pages[0]));
+}
+static DEVICE_ATTR_RO(server_monitor_conn_id);
+
+static ssize_t client_monitor_conn_id_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ return sprintf(buf, "%d\n",
+ channel_conn_id(hv_dev->channel,
+ vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_conn_id);
+
+static ssize_t out_intr_mask_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+ return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
+}
+static DEVICE_ATTR_RO(out_intr_mask);
+
+static ssize_t out_read_index_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+ return sprintf(buf, "%d\n", outbound.current_read_index);
+}
+static DEVICE_ATTR_RO(out_read_index);
+
+static ssize_t out_write_index_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+ return sprintf(buf, "%d\n", outbound.current_write_index);
+}
+static DEVICE_ATTR_RO(out_write_index);
+
+static ssize_t out_read_bytes_avail_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+ return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
}
+static DEVICE_ATTR_RO(out_read_bytes_avail);
+
+static ssize_t out_write_bytes_avail_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info outbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+ return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
+}
+static DEVICE_ATTR_RO(out_write_bytes_avail);
+
+static ssize_t in_intr_mask_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+ return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
+}
+static DEVICE_ATTR_RO(in_intr_mask);
+
+static ssize_t in_read_index_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+ return sprintf(buf, "%d\n", inbound.current_read_index);
+}
+static DEVICE_ATTR_RO(in_read_index);
+
+static ssize_t in_write_index_show(struct device *dev,
+ struct device_attribute *dev_attr, char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+ return sprintf(buf, "%d\n", inbound.current_write_index);
+}
+static DEVICE_ATTR_RO(in_write_index);
+
+static ssize_t in_read_bytes_avail_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+ return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
+}
+static DEVICE_ATTR_RO(in_read_bytes_avail);
+
+static ssize_t in_write_bytes_avail_show(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ struct hv_device *hv_dev = device_to_hv_device(dev);
+ struct hv_ring_buffer_debug_info inbound;
+
+ if (!hv_dev->channel)
+ return -ENODEV;
+ hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+ return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
+}
+static DEVICE_ATTR_RO(in_write_bytes_avail);
/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
-static struct device_attribute vmbus_device_attrs[] = {
- __ATTR(id, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(monitor_id, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(modalias, S_IRUGO, vmbus_show_device_attr, NULL),
-
- __ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
-
- __ATTR(client_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(client_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(client_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
-
- __ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(out_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(out_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
-
- __ATTR(in_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(in_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(in_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(in_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
- __ATTR_NULL
+static struct attribute *vmbus_attrs[] = {
+ &dev_attr_id.attr,
+ &dev_attr_state.attr,
+ &dev_attr_monitor_id.attr,
+ &dev_attr_class_id.attr,
+ &dev_attr_device_id.attr,
+ &dev_attr_modalias.attr,
+ &dev_attr_server_monitor_pending.attr,
+ &dev_attr_client_monitor_pending.attr,
+ &dev_attr_server_monitor_latency.attr,
+ &dev_attr_client_monitor_latency.attr,
+ &dev_attr_server_monitor_conn_id.attr,
+ &dev_attr_client_monitor_conn_id.attr,
+ &dev_attr_out_intr_mask.attr,
+ &dev_attr_out_read_index.attr,
+ &dev_attr_out_write_index.attr,
+ &dev_attr_out_read_bytes_avail.attr,
+ &dev_attr_out_write_bytes_avail.attr,
+ &dev_attr_in_intr_mask.attr,
+ &dev_attr_in_read_index.attr,
+ &dev_attr_in_write_index.attr,
+ &dev_attr_in_read_bytes_avail.attr,
+ &dev_attr_in_write_bytes_avail.attr,
+ NULL,
};
-
+ATTRIBUTE_GROUPS(vmbus);
/*
* vmbus_uevent - add uevent for our device
@@ -383,7 +557,7 @@ static struct bus_type hv_bus = {
.remove = vmbus_remove,
.probe = vmbus_probe,
.uevent = vmbus_uevent,
- .dev_attrs = vmbus_device_attrs,
+ .dev_groups = vmbus_groups,
};
static const char *driver_name = "hyperv";
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 23:38:30 +0000