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authorStephen Hemminger <stephen@networkplumber.org>2017-02-12 09:02:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-14 21:20:35 +0300
commit6e47dd3e2938f41d75045bbcb64aa9df3a463b2a (patch)
treef38bc54aecf8a392aba00143586ff6105e2c9f8d /drivers/hv/ring_buffer.c
parent5529eaf6e79a61e0ca7ade257f31d2ababc7f6c9 (diff)
downloadlinux-6e47dd3e2938f41d75045bbcb64aa9df3a463b2a.tar.xz
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/ring_buffer.c')
-rw-r--r--drivers/hv/ring_buffer.c20
1 files changed, 0 insertions, 20 deletions
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: