From a15a6afb3bf9388eb83a4b876d3453f305fba909 Mon Sep 17 00:00:00 2001 From: Maxim Kochetkov Date: Mon, 19 Oct 2020 08:06:25 +0300 Subject: [PATCH] net: dsa: seville: the packet buffer is 2 megabits, not megabytes The VSC9953 Seville switch has 2 megabits of buffer split into 4360 words of 60 bytes each. 2048 * 1024 is 2 megabytes instead of 2 megabits. 2 megabits is (2048 / 8) * 1024 = 256 * 1024. Signed-off-by: Maxim Kochetkov Reviewed-by: Vladimir Oltean Fixes: a63ed92d217f ("net: dsa: seville: fix buffer size of the queue system") Link: https://lore.kernel.org/r/20201019050625.21533-1-fido_max@inbox.ru Signed-off-by: Jakub Kicinski --- drivers/net/dsa/ocelot/seville_vsc9953.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index 76576cf0ba8a..1d420c4a2f0f 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1181,7 +1181,7 @@ static const struct felix_info seville_info_vsc9953 = { .stats_layout = vsc9953_stats_layout, .num_stats = ARRAY_SIZE(vsc9953_stats_layout), .vcap = vsc9953_vcap_props, - .shared_queue_sz = 2048 * 1024, + .shared_queue_sz = 256 * 1024, .num_mact_rows = 2048, .num_ports = 10, .mdio_bus_alloc = vsc9953_mdio_bus_alloc,