#include "eswitch.h"
#include "en.h"
#include "fs_core.h"
+#include "lib/devcom.h"
enum {
FDB_FAST_PATH = 0,
mlx5_del_flow_rules(rule);
}
+static void peer_miss_rules_setup(struct mlx5_core_dev *peer_dev,
+ struct mlx5_flow_spec *spec,
+ struct mlx5_flow_destination *dest)
+{
+ void *misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
+ misc_parameters);
+
+ MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id,
+ MLX5_CAP_GEN(peer_dev, vhca_id));
+
+ spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
+
+ misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
+ misc_parameters);
+ MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
+ MLX5_SET_TO_ONES(fte_match_set_misc, misc,
+ source_eswitch_owner_vhca_id);
+
+ dest->type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
+ dest->vport.num = 0;
+ dest->vport.vhca_id = MLX5_CAP_GEN(peer_dev, vhca_id);
+ dest->vport.vhca_id_valid = 1;
+}
+
+static int esw_add_fdb_peer_miss_rules(struct mlx5_eswitch *esw,
+ struct mlx5_core_dev *peer_dev)
+{
+ struct mlx5_flow_destination dest = {};
+ struct mlx5_flow_act flow_act = {0};
+ struct mlx5_flow_handle **flows;
+ struct mlx5_flow_handle *flow;
+ struct mlx5_flow_spec *spec;
+ /* total vports is the same for both e-switches */
+ int nvports = esw->total_vports;
+ void *misc;
+ int err, i;
+
+ spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
+ if (!spec)
+ return -ENOMEM;
+
+ peer_miss_rules_setup(peer_dev, spec, &dest);
+
+ flows = kvzalloc(nvports * sizeof(*flows), GFP_KERNEL);
+ if (!flows) {
+ err = -ENOMEM;
+ goto alloc_flows_err;
+ }
+
+ flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
+ misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
+ misc_parameters);
+
+ for (i = 1; i < nvports; i++) {
+ MLX5_SET(fte_match_set_misc, misc, source_port, i);
+ flow = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb,
+ spec, &flow_act, &dest, 1);
+ if (IS_ERR(flow)) {
+ err = PTR_ERR(flow);
+ esw_warn(esw->dev, "FDB: Failed to add peer miss flow rule err %d\n", err);
+ goto add_flow_err;
+ }
+ flows[i] = flow;
+ }
+
+ esw->fdb_table.offloads.peer_miss_rules = flows;
+
+ kvfree(spec);
+ return 0;
+
+add_flow_err:
+ for (i--; i > 0; i--)
+ mlx5_del_flow_rules(flows[i]);
+ kvfree(flows);
+alloc_flows_err:
+ kvfree(spec);
+ return err;
+}
+
+static void esw_del_fdb_peer_miss_rules(struct mlx5_eswitch *esw)
+{
+ struct mlx5_flow_handle **flows;
+ int i;
+
+ flows = esw->fdb_table.offloads.peer_miss_rules;
+
+ for (i = 1; i < esw->total_vports; i++)
+ mlx5_del_flow_rules(flows[i]);
+
+ kvfree(flows);
+}
+
static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
{
struct mlx5_flow_act flow_act = {0};
esw->fdb_table.offloads.fdb_left[i] =
ESW_POOLS[i] <= fdb_max ? ESW_SIZE / ESW_POOLS[i] : 0;
- table_size = nvports * MAX_SQ_NVPORTS + MAX_PF_SQ + 2;
+ table_size = nvports * MAX_SQ_NVPORTS + MAX_PF_SQ + 2 +
+ esw->total_vports;
/* create the slow path fdb with encap set, so further table instances
* can be created at run time while VFs are probed if the FW allows that.
}
esw->fdb_table.offloads.send_to_vport_grp = g;
+ /* create peer esw miss group */
+ memset(flow_group_in, 0, inlen);
+ MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
+ MLX5_MATCH_MISC_PARAMETERS);
+
+ match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in,
+ match_criteria);
+
+ MLX5_SET_TO_ONES(fte_match_param, match_criteria,
+ misc_parameters.source_port);
+ MLX5_SET_TO_ONES(fte_match_param, match_criteria,
+ misc_parameters.source_eswitch_owner_vhca_id);
+
+ MLX5_SET(create_flow_group_in, flow_group_in,
+ source_eswitch_owner_vhca_id_valid, 1);
+ MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, ix);
+ MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index,
+ ix + esw->total_vports - 1);
+ ix += esw->total_vports;
+
+ g = mlx5_create_flow_group(fdb, flow_group_in);
+ if (IS_ERR(g)) {
+ err = PTR_ERR(g);
+ esw_warn(dev, "Failed to create peer miss flow group err(%d)\n", err);
+ goto peer_miss_err;
+ }
+ esw->fdb_table.offloads.peer_miss_grp = g;
+
/* create miss group */
memset(flow_group_in, 0, inlen);
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
miss_rule_err:
mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp);
miss_err:
+ mlx5_destroy_flow_group(esw->fdb_table.offloads.peer_miss_grp);
+peer_miss_err:
mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp);
send_vport_err:
esw_destroy_offloads_fast_fdb_tables(esw);
mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule_multi);
mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule_uni);
mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp);
+ mlx5_destroy_flow_group(esw->fdb_table.offloads.peer_miss_grp);
mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp);
mlx5_destroy_flow_table(esw->fdb_table.offloads.slow_fdb);
return err;
}
+#define ESW_OFFLOADS_DEVCOM_PAIR (0)
+#define ESW_OFFLOADS_DEVCOM_UNPAIR (1)
+
+static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,
+ struct mlx5_eswitch *peer_esw)
+{
+ int err;
+
+ err = esw_add_fdb_peer_miss_rules(esw, peer_esw->dev);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw)
+{
+ esw_del_fdb_peer_miss_rules(esw);
+}
+
+static int mlx5_esw_offloads_devcom_event(int event,
+ void *my_data,
+ void *event_data)
+{
+ struct mlx5_eswitch *esw = my_data;
+ struct mlx5_eswitch *peer_esw = event_data;
+ struct mlx5_devcom *devcom = esw->dev->priv.devcom;
+ int err;
+
+ switch (event) {
+ case ESW_OFFLOADS_DEVCOM_PAIR:
+ err = mlx5_esw_offloads_pair(esw, peer_esw);
+ if (err)
+ goto err_out;
+
+ err = mlx5_esw_offloads_pair(peer_esw, esw);
+ if (err)
+ goto err_pair;
+
+ mlx5_devcom_set_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS, true);
+ break;
+
+ case ESW_OFFLOADS_DEVCOM_UNPAIR:
+ if (!mlx5_devcom_is_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS))
+ break;
+
+ mlx5_devcom_set_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS, false);
+ mlx5_esw_offloads_unpair(peer_esw);
+ mlx5_esw_offloads_unpair(esw);
+ break;
+ }
+
+ return 0;
+
+err_pair:
+ mlx5_esw_offloads_unpair(esw);
+
+err_out:
+ mlx5_core_err(esw->dev, "esw offloads devcom event failure, event %u err %d",
+ event, err);
+ return err;
+}
+
+static void esw_offloads_devcom_init(struct mlx5_eswitch *esw)
+{
+ struct mlx5_devcom *devcom = esw->dev->priv.devcom;
+
+ if (!MLX5_CAP_ESW(esw->dev, merged_eswitch))
+ return;
+
+ mlx5_devcom_register_component(devcom,
+ MLX5_DEVCOM_ESW_OFFLOADS,
+ mlx5_esw_offloads_devcom_event,
+ esw);
+
+ mlx5_devcom_send_event(devcom,
+ MLX5_DEVCOM_ESW_OFFLOADS,
+ ESW_OFFLOADS_DEVCOM_PAIR, esw);
+}
+
+static void esw_offloads_devcom_cleanup(struct mlx5_eswitch *esw)
+{
+ struct mlx5_devcom *devcom = esw->dev->priv.devcom;
+
+ if (!MLX5_CAP_ESW(esw->dev, merged_eswitch))
+ return;
+
+ mlx5_devcom_send_event(devcom, MLX5_DEVCOM_ESW_OFFLOADS,
+ ESW_OFFLOADS_DEVCOM_UNPAIR, esw);
+
+ mlx5_devcom_unregister_component(devcom, MLX5_DEVCOM_ESW_OFFLOADS);
+}
+
int esw_offloads_init(struct mlx5_eswitch *esw, int nvports)
{
int err;
if (err)
goto err_reps;
+ esw_offloads_devcom_init(esw);
return 0;
err_reps:
void esw_offloads_cleanup(struct mlx5_eswitch *esw, int nvports)
{
+ esw_offloads_devcom_cleanup(esw);
esw_offloads_unload_reps(esw, nvports);
esw_destroy_vport_rx_group(esw);
esw_destroy_offloads_table(esw);
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