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authorStephen Hemminger <stephen@networkplumber.org>2017-02-11 23:02:23 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-14 10:20:35 -0800
commit6e47dd3e2938f41d75045bbcb64aa9df3a463b2a (patch)
treef38bc54aecf8a392aba00143586ff6105e2c9f8d /drivers/hv
parent5529eaf6e79a61e0ca7ade257f31d2ababc7f6c9 (diff)
vmbus: expose hv_begin/end_read
In order to implement NAPI in netvsc, the driver needs access to control host interrupt mask. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hyperv_vmbus.h4
-rw-r--r--drivers/hv/ring_buffer.c20
2 files changed, 0 insertions, 24 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 6a9b54677218..e15a130de3c9 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -292,10 +292,6 @@ int hv_ringbuffer_read(struct vmbus_channel *channel,
void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
struct hv_ring_buffer_debug_info *debug_info);
-void hv_begin_read(struct hv_ring_buffer_info *rbi);
-
-u32 hv_end_read(struct hv_ring_buffer_info *rbi);
-
/*
* Maximum channels is determined by the size of the interrupt page
* which is PAGE_SIZE. 1/2 of PAGE_SIZE is for send endpoint interrupt
diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
index 1a1e70a45146..75c9eefd55b5 100644
--- a/drivers/hv/ring_buffer.c
+++ b/drivers/hv/ring_buffer.c
@@ -32,26 +32,6 @@
#include "hyperv_vmbus.h"
-void hv_begin_read(struct hv_ring_buffer_info *rbi)
-{
- rbi->ring_buffer->interrupt_mask = 1;
- virt_mb();
-}
-
-u32 hv_end_read(struct hv_ring_buffer_info *rbi)
-{
-
- rbi->ring_buffer->interrupt_mask = 0;
- virt_mb();
-
- /*
- * Now check to see if the ring buffer is still empty.
- * If it is not, we raced and we need to process new
- * incoming messages.
- */
- return hv_get_bytes_to_read(rbi);
-}
-
/*
* When we write to the ring buffer, check if the host needs to
* be signaled. Here is the details of this protocol: