From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: [PATCH net 3/3] hv_netvsc: Fix the default receive buffer size Date: Thu, 7 Dec 2017 16:10:55 -0800 Message-ID: <20171208001055.24670-4-sthemmin@microsoft.com> References: <20171208001055.24670-1-sthemmin@microsoft.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: devel@linuxdriverproject.org, netdev@vger.kernel.org To: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com Return-path: In-Reply-To: <20171208001055.24670-1-sthemmin@microsoft.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" List-Id: netdev.vger.kernel.org From: Haiyang Zhang The intended size is 16 MB, and the default slot size is 1728. So, NETVSC_DEFAULT_RX should be 16*1024*1024 / 1728 = 9709. Fixes: 5023a6db73196 ("netvsc: increase default receive buffer size") Signed-off-by: Haiyang Zhang Signed-off-by: Stephen Hemminger --- drivers/net/hyperv/netvsc_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index dc70de674ca9..edfcde5d3621 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -50,7 +50,7 @@ #define NETVSC_MIN_TX_SECTIONS 10 #define NETVSC_DEFAULT_TX 192 /* ~1M */ #define NETVSC_MIN_RX_SECTIONS 10 /* ~64K */ -#define NETVSC_DEFAULT_RX 10485 /* Max ~16M */ +#define NETVSC_DEFAULT_RX 9709 /* ~16M */ #define LINKCHANGE_INT (2 * HZ) #define VF_TAKEOVER_INT (HZ / 10) -- 2.11.0