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net/mlx5: E-Switch, Add operational mode to the SRIOV e-Switch

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Define three modes for the SRIOV e-switch operation, none (SRIOV_NONE,
none of the VF vports are enabled), legacy (SRIOV_LEGACY, the current mode)
and sriov offloads (SRIOV_OFFLOADS). Currently, when in SRIOV, only the
legacy mode is supported, where steering rules are of the form:

        destination mac --> VF vport

This patch does not change any functionality.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2016-07-01 14:50:54 +03:00 committed by David S. Miller
parent 3ea00443f1
commit 6ab36e35f1
3 changed files with 46 additions and 29 deletions
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51
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -428,7 +428,7 @@ esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u32 vport)
return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v);
}
static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw, int nvports)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_core_dev *dev = esw->dev;
@ -479,7 +479,7 @@ static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
esw_warn(dev, "Failed to create flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.addr_grp = g;
esw->fdb_table.legacy.addr_grp = g;
/* Allmulti group : One rule that forwards any mcast traffic */
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
@ -494,7 +494,7 @@ static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
esw_warn(dev, "Failed to create allmulti flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.allmulti_grp = g;
esw->fdb_table.legacy.allmulti_grp = g;
/* Promiscuous group :
* One rule that forward all unmatched traffic from previous groups
@ -511,17 +511,17 @@ static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
esw_warn(dev, "Failed to create promisc flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.promisc_grp = g;
esw->fdb_table.legacy.promisc_grp = g;
out:
if (err) {
if (!IS_ERR_OR_NULL(esw->fdb_table.allmulti_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
esw->fdb_table.allmulti_grp = NULL;
if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.allmulti_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp);
esw->fdb_table.legacy.allmulti_grp = NULL;
}
if (!IS_ERR_OR_NULL(esw->fdb_table.addr_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
esw->fdb_table.addr_grp = NULL;
if (!IS_ERR_OR_NULL(esw->fdb_table.legacy.addr_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp);
esw->fdb_table.legacy.addr_grp = NULL;
}
if (!IS_ERR_OR_NULL(esw->fdb_table.fdb)) {
mlx5_destroy_flow_table(esw->fdb_table.fdb);
@ -533,20 +533,20 @@ out:
return err;
}
static void esw_destroy_fdb_table(struct mlx5_eswitch *esw)
static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw)
{
if (!esw->fdb_table.fdb)
return;
esw_debug(esw->dev, "Destroy FDB Table\n");
mlx5_destroy_flow_group(esw->fdb_table.promisc_grp);
mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
mlx5_destroy_flow_group(esw->fdb_table.legacy.promisc_grp);
mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp);
mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp);
mlx5_destroy_flow_table(esw->fdb_table.fdb);
esw->fdb_table.fdb = NULL;
esw->fdb_table.addr_grp = NULL;
esw->fdb_table.allmulti_grp = NULL;
esw->fdb_table.promisc_grp = NULL;
esw->fdb_table.legacy.addr_grp = NULL;
esw->fdb_table.legacy.allmulti_grp = NULL;
esw->fdb_table.legacy.promisc_grp = NULL;
}
/* E-Switch vport UC/MC lists management */
@ -1540,7 +1540,7 @@ static void esw_disable_vport(struct mlx5_eswitch *esw, int vport_num)
}
/* Public E-Switch API */
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs)
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode)
{
int err;
int i;
@ -1561,11 +1561,14 @@ int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs)
if (!MLX5_CAP_ESW_EGRESS_ACL(esw->dev, ft_support))
esw_warn(esw->dev, "E-Switch engress ACL is not supported by FW\n");
esw_info(esw->dev, "E-Switch enable SRIOV: nvfs(%d)\n", nvfs);
esw_info(esw->dev, "E-Switch enable SRIOV: nvfs(%d) mode (%d)\n", nvfs, mode);
if (mode != SRIOV_LEGACY)
return -EINVAL;
esw->mode = mode;
esw_disable_vport(esw, 0);
err = esw_create_fdb_table(esw, nvfs + 1);
err = esw_create_legacy_fdb_table(esw, nvfs + 1);
if (err)
goto abort;
@ -1590,8 +1593,8 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return;
esw_info(esw->dev, "disable SRIOV: active vports(%d)\n",
esw->enabled_vports);
esw_info(esw->dev, "disable SRIOV: active vports(%d) mode(%d)\n",
esw->enabled_vports, esw->mode);
mc_promisc = esw->mc_promisc;
@ -1601,8 +1604,9 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
if (mc_promisc && mc_promisc->uplink_rule)
mlx5_del_flow_rule(mc_promisc->uplink_rule);
esw_destroy_fdb_table(esw);
esw_destroy_legacy_fdb_table(esw);
esw->mode = SRIOV_NONE;
/* VPORT 0 (PF) must be enabled back with non-sriov configuration */
esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
}
@ -1673,6 +1677,7 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
esw->total_vports = total_vports;
esw->enabled_vports = 0;
esw->mode = SRIOV_NONE;
dev->priv.eswitch = esw;
esw_enable_vport(esw, 0, UC_ADDR_CHANGE);

19
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -134,9 +134,19 @@ struct mlx5_l2_table {
struct mlx5_eswitch_fdb {
void *fdb;
struct mlx5_flow_group *addr_grp;
struct mlx5_flow_group *allmulti_grp;
struct mlx5_flow_group *promisc_grp;
union {
struct legacy_fdb {
struct mlx5_flow_group *addr_grp;
struct mlx5_flow_group *allmulti_grp;
struct mlx5_flow_group *promisc_grp;
} legacy;
};
};
enum {
SRIOV_NONE,
SRIOV_LEGACY,
SRIOV_OFFLOADS
};
struct mlx5_eswitch {
@ -153,13 +163,14 @@ struct mlx5_eswitch {
*/
struct mutex state_lock;
struct esw_mc_addr *mc_promisc;
int mode;
};
/* E-Switch API */
int mlx5_eswitch_init(struct mlx5_core_dev *dev);
void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs);
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode);
void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);
int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
int vport, u8 mac[ETH_ALEN]);

5
drivers/net/ethernet/mellanox/mlx5/core/sriov.c
View File

@ -167,7 +167,7 @@ int mlx5_core_sriov_configure(struct pci_dev *pdev, int num_vfs)
mlx5_core_init_vfs(dev, num_vfs);
#ifdef CONFIG_MLX5_CORE_EN
mlx5_eswitch_enable_sriov(dev->priv.eswitch, num_vfs);
mlx5_eswitch_enable_sriov(dev->priv.eswitch, num_vfs, SRIOV_LEGACY);
#endif
return num_vfs;
@ -209,7 +209,8 @@ int mlx5_sriov_init(struct mlx5_core_dev *dev)
mlx5_core_init_vfs(dev, cur_vfs);
#ifdef CONFIG_MLX5_CORE_EN
if (cur_vfs)
mlx5_eswitch_enable_sriov(dev->priv.eswitch, cur_vfs);
mlx5_eswitch_enable_sriov(dev->priv.eswitch, cur_vfs,
SRIOV_LEGACY);
#endif
enable_vfs(dev, cur_vfs);