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net/mlx5: E-switch, mark devcom as not ready when all eswitches are unpaired

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Whenever an eswitch is unpaired with another, the driver mark devcom
as not ready. While this is correct in case we are pairing only two
eswitches, in order to support pairing of more than two eswitches,
driver need to mark devcom as not ready only when all eswitches are
unpaired.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Shay Drory 2023-02-02 10:27:45 +02:00 committed by Saeed Mahameed
parent e67f928a52
commit 8611df7220
2 changed files with 8 additions and 1 deletions
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1
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -343,6 +343,7 @@ struct mlx5_eswitch {
int mode;
u16 manager_vport;
u16 first_host_vport;
u8 num_peers;
struct mlx5_esw_functions esw_funcs;
struct {
u32 large_group_num;

8
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -2836,6 +2836,8 @@ static int mlx5_esw_offloads_devcom_event(int event,
esw->paired[mlx5_get_dev_index(peer_esw->dev)] = true;
peer_esw->paired[mlx5_get_dev_index(esw->dev)] = true;
esw->num_peers++;
peer_esw->num_peers++;
mlx5_devcom_comp_set_ready(devcom, MLX5_DEVCOM_ESW_OFFLOADS, true);
break;
@ -2843,7 +2845,10 @@ static int mlx5_esw_offloads_devcom_event(int event,
if (!esw->paired[mlx5_get_dev_index(peer_esw->dev)])
break;
mlx5_devcom_comp_set_ready(devcom, MLX5_DEVCOM_ESW_OFFLOADS, false);
peer_esw->num_peers--;
esw->num_peers--;
if (!esw->num_peers && !peer_esw->num_peers)
mlx5_devcom_comp_set_ready(devcom, MLX5_DEVCOM_ESW_OFFLOADS, false);
esw->paired[mlx5_get_dev_index(peer_esw->dev)] = false;
peer_esw->paired[mlx5_get_dev_index(esw->dev)] = false;
mlx5_esw_offloads_unpair(peer_esw, esw);
@ -2884,6 +2889,7 @@ void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw)
mlx5_esw_offloads_devcom_event,
esw);
esw->num_peers = 0;
mlx5_devcom_send_event(devcom,
MLX5_DEVCOM_ESW_OFFLOADS,
ESW_OFFLOADS_DEVCOM_PAIR, esw);