From: Hank Janssen <hjanssen@sailtheuniverse.com>
To: hjanssen@microsoft.com, Haiyang Zhang <haiyangz@microsoft.com>,
gregkh@suse.de, virtualization@lists.osdl.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] staging: hv: Doubled ringbuffer size for Hyper-v network driver
Date: Tue, 12 Oct 2010 10:45:23 -0700 [thread overview]
Message-ID: <4CB49EB3.6090000@sailtheuniverse.com> (raw)
From: Hank Janssen <hjanssen@microsoft.com>
Double the default network ringsize buffer for Hyper-V network driver.
In very heavily loaded systems the there is a chance you run out of
ringbuffer space and error out.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
---
drivers/staging/hv/netvsc_drv.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 56e1157..45e082a 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -59,7 +59,7 @@ struct netvsc_driver_context {
/* Need this many pages to handle worst case fragmented packet */
#define PACKET_PAGES_HIWATER (MAX_SKB_FRAGS + 2)
-static int ring_size = roundup_pow_of_two(2*MAX_SKB_FRAGS+1);
+static int ring_size = 128;
module_param(ring_size, int, S_IRUGO);
MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
--
1.6.0.2
reply other threads:[~2010-10-12 17:45 UTC|newest]
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