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authorIdo Schimmel <idosch@mellanox.com>2017-10-22 23:11:49 +0200
committerDavid S. Miller <davem@davemloft.net>2017-10-23 05:23:06 +0100
commitf11fbaf8b5a83608523b88cf62682914cf521546 (patch)
treef4932a5a4d7e9113586c673f6e67ba6151e6385e /drivers
parentmlxsw: spectrum_router: Populate adjacency entries according to weights (diff)
downloadlinux-dev-f11fbaf8b5a83608523b88cf62682914cf521546.tar.xz
linux-dev-f11fbaf8b5a83608523b88cf62682914cf521546.zip
mlxsw: spectrum: Increase number of linear entries
The memory region where adjacency entries (nexthops) are stored is called the KVD linear and is configured during initialization with a size of 64K. Extend this area with 32K more entries, that will be partitioned into 64 groups of 0.5K entries, thereby allowing us to support weighted nexthops with high accuracy. Change the ratio between both types of hash entries, so as to prevent reduction in the number of double hash entries, which are used for IPv6 neighbours and routes with a prefix length greater than 64. Note that the user will be able to control all these sizes once the devlink resource manager is introduced. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 1bc3fc356084..12b6ac487d8d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -3885,8 +3885,8 @@ static const struct mlxsw_config_profile mlxsw_sp_config_profile = {
.max_pkey = 0,
.used_kvd_split_data = 1,
.kvd_hash_granularity = MLXSW_SP_KVD_GRANULARITY,
- .kvd_hash_single_parts = 2,
- .kvd_hash_double_parts = 1,
+ .kvd_hash_single_parts = 59,
+ .kvd_hash_double_parts = 41,
.kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE,
.swid_config = {
{
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 78ff20d86db1..dc1b739c3ae1 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -62,7 +62,7 @@
#define MLXSW_SP_PORT_BASE_SPEED 25000 /* Mb/s */
-#define MLXSW_SP_KVD_LINEAR_SIZE 65536 /* entries */
+#define MLXSW_SP_KVD_LINEAR_SIZE 98304 /* entries */
#define MLXSW_SP_KVD_GRANULARITY 128
struct mlxsw_sp_port;