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net/mlx4: move RSS related definitions to be global 

Towards adding RSS support for IB drivers/application who use
the mlx4 HW, make the RSS related definitions global and change
the mlx4_en driver to use them.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2011-11-26 19:54:58 +00:00 committed by David S. Miller
parent fd4f862717
commit 876f6e67d1
4 changed files with 34 additions and 15 deletions
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2
drivers/net/ethernet/mellanox/mlx4/en_resources.c
View File

@ -44,7 +44,7 @@ void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
struct mlx4_en_dev *mdev = priv->mdev;
memset(context, 0, sizeof *context);
context->flags = cpu_to_be32(7 << 16 | rss << 13);
context->flags = cpu_to_be32(7 << 16 | rss << MLX4_RSS_QPC_FLAG_OFFSET);
context->pd = cpu_to_be32(mdev->priv_pdn);
context->mtu_msgmax = 0xff;
if (!is_tx && !rss)

10
drivers/net/ethernet/mellanox/mlx4/en_rx.c
View File

@ -837,9 +837,10 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_rss_map *rss_map = &priv->rss_map;
struct mlx4_qp_context context;
struct mlx4_en_rss_context *rss_context;
struct mlx4_rss_context *rss_context;
void *ptr;
u8 rss_mask = 0x3f;
u8 rss_mask = (MLX4_RSS_IPV4 | MLX4_RSS_TCP_IPV4 | MLX4_RSS_IPV6 |
MLX4_RSS_TCP_IPV6 | MLX4_RSS_UDP_IPV4 | MLX4_RSS_UDP_IPV6);
int i, qpn;
int err = 0;
int good_qps = 0;
@ -877,13 +878,14 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
priv->rx_ring[0].cqn, &context);
ptr = ((void *) &context) + 0x3c;
ptr = ((void *) &context) + offsetof(struct mlx4_qp_context, pri_path)
+ MLX4_RSS_OFFSET_IN_QPC_PRI_PATH;
rss_context = ptr;
rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |
(rss_map->base_qpn));
rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
rss_context->flags = rss_mask;
rss_context->hash_fn = 1;
rss_context->hash_fn = MLX4_RSS_HASH_TOP;
for (i = 0; i < 10; i++)
rss_context->rss_key[i] = rsskey[i];

10
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -366,16 +366,6 @@ struct mlx4_en_rss_map {
enum mlx4_qp_state indir_state;
};
struct mlx4_en_rss_context {
__be32 base_qpn;
__be32 default_qpn;
u16 reserved;
u8 hash_fn;
u8 flags;
__be32 rss_key[10];
__be32 base_qpn_udp;
};
struct mlx4_en_port_state {
int link_state;
int link_speed;

27
include/linux/mlx4/qp.h
View File

@ -97,6 +97,33 @@ enum {
MLX4_QP_BIT_RIC = 1 << 4,
};
enum {
MLX4_RSS_HASH_XOR = 0,
MLX4_RSS_HASH_TOP = 1,
MLX4_RSS_UDP_IPV6 = 1 << 0,
MLX4_RSS_UDP_IPV4 = 1 << 1,
MLX4_RSS_TCP_IPV6 = 1 << 2,
MLX4_RSS_IPV6 = 1 << 3,
MLX4_RSS_TCP_IPV4 = 1 << 4,
MLX4_RSS_IPV4 = 1 << 5,
/* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
MLX4_RSS_OFFSET_IN_QPC_PRI_PATH = 0x24,
/* offset of being RSS indirection QP within mlx4_qp_context.flags */
MLX4_RSS_QPC_FLAG_OFFSET = 13,
};
struct mlx4_rss_context {
__be32 base_qpn;
__be32 default_qpn;
u16 reserved;
u8 hash_fn;
u8 flags;
__be32 rss_key[10];
__be32 base_qpn_udp;
};
struct mlx4_qp_path {
u8 fl;
u8 reserved1[2];