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authorStephen Hemminger <stephen@networkplumber.org>2018-08-11 02:06:09 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-12 10:46:46 +0300
commit108ddb8fa1fc310be4a6bd1e308bca62821ee8b5 (patch)
treee3fa088d5e6cd0679cb7e1abe390989ab7de416e /drivers/uio
parentd765edbb301c0e196015a59b17420558088ea33f (diff)
downloadlinux-108ddb8fa1fc310be4a6bd1e308bca62821ee8b5.tar.xz
uio_hv_generic: increase size of receive and send buffers
When using DPDK there is significant performance boost by using the largest possible send and receive buffer area. Unfortunately, with UIO model there is not a good way to configure this at run time. But it is okay to have a bigger buffer available even if application only decides to use a smaller piece of it. 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/uio')
-rw-r--r--drivers/uio/uio_hv_generic.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
index e401be8321ab..9e7d622b4326 100644
--- a/drivers/uio/uio_hv_generic.c
+++ b/drivers/uio/uio_hv_generic.c
@@ -33,13 +33,13 @@
#include "../hv/hyperv_vmbus.h"
-#define DRIVER_VERSION "0.02.0"
+#define DRIVER_VERSION "0.02.1"
#define DRIVER_AUTHOR "Stephen Hemminger <sthemmin at microsoft.com>"
#define DRIVER_DESC "Generic UIO driver for VMBus devices"
#define HV_RING_SIZE 512 /* pages */
-#define SEND_BUFFER_SIZE (15 * 1024 * 1024)
-#define RECV_BUFFER_SIZE (15 * 1024 * 1024)
+#define SEND_BUFFER_SIZE (16 * 1024 * 1024)
+#define RECV_BUFFER_SIZE (31 * 1024 * 1024)
/*
* List of resources to be mapped to user space