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From:   Sven Van Asbroeck <thesven73@gmail.com>
To:     Bryan Whitehead <bryan.whitehead@microchip.com>,
        UNGLinuxDriver@microchip.com, David S Miller <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>
Cc:     Sven Van Asbroeck <thesven73@gmail.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Alexey Denisov <rtgbnm@gmail.com>,
        Sergej Bauer <sbauer@blackbox.su>,
        Tim Harvey <tharvey@gateworks.com>,
        =?UTF-8?q?Anders=20R=C3=B8nningen?= <anders@ronningen.priv.no>,
        Hillf Danton <hdanton@sina.com>,
        Christoph Hellwig <hch@lst.de>,
        Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next v3 3/5] TEST ONLY: lan743x: limit rx ring buffer size to 500 bytes
Date:   Mon, 15 Feb 2021 20:08:04 -0500
Message-Id: <20210216010806.31948-4-TheSven73@gmail.com>
In-Reply-To: <20210216010806.31948-1-TheSven73@gmail.com>
References: <20210216010806.31948-1-TheSven73@gmail.com>
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From: Sven Van Asbroeck <thesven73@gmail.com>

Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
---

To: Bryan Whitehead <bryan.whitehead@microchip.com>
To: UNGLinuxDriver@microchip.com
To: "David S. Miller" <davem@davemloft.net>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Alexey Denisov <rtgbnm@gmail.com>
Cc: Sergej Bauer <sbauer@blackbox.su>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Anders Rønningen <anders@ronningen.priv.no>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

 drivers/net/ethernet/microchip/lan743x_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 6b642691a676..90738ec5e7ec 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1973,7 +1973,7 @@ static int lan743x_rx_init_ring_element(struct lan743x_rx *rx, int index)
 	struct sk_buff *skb;
 	dma_addr_t dma_ptr;
 
-	buffer_length = netdev->mtu + ETH_HLEN + 4 + RX_HEAD_PADDING;
+	buffer_length = 500 + ETH_HLEN + 4 + RX_HEAD_PADDING;
 
 	descriptor = &rx->ring_cpu_ptr[index];
 	buffer_info = &rx->buffer_info[index];
-- 
2.17.1