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 <fido_max@inbox.ru>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
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 <kuba@kernel.org>

diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c
index 76576cf0ba8ade62ea03cb7affa0b3ff849f1e77..1d420c4a2f0f31d3d73c0c1727afb5bf85347471 100644 (file)
--- 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,