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authorMatan Barak <matanb@mellanox.com>2014-12-11 11:58:00 +0300
committerDavid S. Miller <davem@davemloft.net>2014-12-11 22:47:36 +0300
commit7d077cd34eabb2ffd05abe0f2cad01da1ef11712 (patch)
tree91215913abb8d16177517d254f677c7119461875 /drivers/net/ethernet/mellanox/mlx4/mlx4.h
parent431df8c7e9708433459fd806a08308997de43121 (diff)
downloadlinux-7d077cd34eabb2ffd05abe0f2cad01da1ef11712.tar.xz
net/mlx4: Add support for A0 steering
Add the required firmware commands for A0 steering and a way to enable that. The firmware support focuses on INIT_HCA, QUERY_HCA, QUERY_PORT, QUERY_DEV_CAP and QUERY_FUNC_CAP commands. Those commands are used to configure and query the device. The different A0 DMFS (steering) modes are: Static - optimized performance, but flow steering rules are limited. This mode should be choosed explicitly by the user in order to be used. Dynamic - this mode should be explicitly choosed by the user. In this mode, the FW works in optimized steering mode as long as it can and afterwards automatically drops to classic (full) DMFS. Disable - this mode should be explicitly choosed by the user. The user instructs the system not to use optimized steering, even if the FW supports Dynamic A0 DMFS (and thus will be able to use optimized steering in Default A0 DMFS mode). Default - this mode is implicitly choosed. In this mode, if the FW supports Dynamic A0 DMFS, it'll work in this mode. Otherwise, it'll work at Disable A0 DMFS mode. Under SRIOV configuration, when the A0 steering mode is enabled, older guest VF drivers who aren't using the RX QP allocation flag (MLX4_RESERVE_A0_QP) will get a QP from the general range and fail when attempting to register a steering rule. To avoid that, the PF context behaviour is changed once on A0 static mode, to require support for the allocation flag in VF drivers too. In order to enable A0 steering, we use log_num_mgm_entry_size param. If the value of the parameter is not positive, we treat the absolute value of log_num_mgm_entry_size as a bit field. Setting bit 2 of this bit field enables static A0 steering. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/mlx4.h')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index cebd1180702b..bdd4eea2247c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -689,8 +689,6 @@ enum mlx4_qp_table_zones {
MLX4_QP_TABLE_ZONE_NUM
};
-#define MLX4_A0_STEERING_TABLE_SIZE 256
-
struct mlx4_qp_table {
struct mlx4_bitmap *bitmap_gen;
struct mlx4_zone_allocator *zones;