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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 05:07:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 05:15:35 +0300
commitaf82455f7dbd9dc20244d80d033721b30d22c065 (patch)
tree3b9246456e82ae116b57834a2f0b4a307a016474 /include/linux/hyperv.h
parent0be75179df5e20306528800fc7c6a504b12b97db (diff)
parent2a76f89fa58c769241cfc21f2614705591519ae3 (diff)
downloadlinux-af82455f7dbd9dc20244d80d033721b30d22c065.tar.xz
Merge tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big set of new char/misc driver drivers and features for 4.12-rc1. There's lots of new drivers added this time around, new firmware drivers from Google, more auxdisplay drivers, extcon drivers, fpga drivers, and a bunch of other driver updates. Nothing major, except if you happen to have the hardware for these drivers, and then you will be happy :) All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits) firmware: google memconsole: Fix return value check in platform_memconsole_init() firmware: Google VPD: Fix return value check in vpd_platform_init() goldfish_pipe: fix build warning about using too much stack. goldfish_pipe: An implementation of more parallel pipe fpga fr br: update supported version numbers fpga: region: release FPGA region reference in error path fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe() mei: drop the TODO from samples firmware: Google VPD sysfs driver firmware: Google VPD: import lib_vpd source files misc: lkdtm: Add volatile to intentional NULL pointer reference eeprom: idt_89hpesx: Add OF device ID table misc: ds1682: Add OF device ID table misc: tsl2550: Add OF device ID table w1: Remove unneeded use of assert() and remove w1_log.h w1: Use kernel common min() implementation uio_mf624: Align memory regions to page size and set correct offsets uio_mf624: Refactor memory info initialization uio: Allow handling of non page-aligned memory regions hangcheck-timer: Fix typo in comment ...
Diffstat (limited to 'include/linux/hyperv.h')
-rw-r--r--include/linux/hyperv.h31
1 files changed, 23 insertions, 8 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 0c170a3f0d8b..e09fc8290c2f 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -491,6 +491,12 @@ struct vmbus_channel_rescind_offer {
u32 child_relid;
} __packed;
+static inline u32
+hv_ringbuffer_pending_size(const struct hv_ring_buffer_info *rbi)
+{
+ return rbi->ring_buffer->pending_send_sz;
+}
+
/*
* Request Offer -- no parameters, SynIC message contains the partition ID
* Set Snoop -- no parameters, SynIC message contains the partition ID
@@ -524,10 +530,10 @@ struct vmbus_channel_open_channel {
u32 target_vp;
/*
- * The upstream ring buffer begins at offset zero in the memory
- * described by RingBufferGpadlHandle. The downstream ring buffer
- * follows it at this offset (in pages).
- */
+ * The upstream ring buffer begins at offset zero in the memory
+ * described by RingBufferGpadlHandle. The downstream ring buffer
+ * follows it at this offset (in pages).
+ */
u32 downstream_ringbuffer_pageoffset;
/* User-specific data to be passed along to the server endpoint. */
@@ -1013,7 +1019,7 @@ extern int vmbus_open(struct vmbus_channel *channel,
u32 recv_ringbuffersize,
void *userdata,
u32 userdatalen,
- void(*onchannel_callback)(void *context),
+ void (*onchannel_callback)(void *context),
void *context);
extern void vmbus_close(struct vmbus_channel *channel);
@@ -1155,6 +1161,17 @@ static inline void *hv_get_drvdata(struct hv_device *dev)
return dev_get_drvdata(&dev->device);
}
+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;
+};
+
+void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info,
+ struct hv_ring_buffer_debug_info *debug_info);
+
/* Vmbus interface */
#define vmbus_driver_register(driver) \
__vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
@@ -1428,7 +1445,7 @@ struct hyperv_service_callback {
char *log_msg;
uuid_le data;
struct vmbus_channel *channel;
- void (*callback) (void *context);
+ void (*callback)(void *context);
};
#define MAX_SRV_VER 0x7ffffff
@@ -1504,8 +1521,6 @@ static inline void hv_signal_on_read(struct vmbus_channel *channel)
cached_write_sz = hv_get_cached_bytes_to_write(rbi);
if (cached_write_sz < pending_sz)
vmbus_setevent(channel);
-
- return;
}
/*