diff options
| author |   Amit Cohen <amcohen@nvidia.com> | 2021-12-01 10:12:38 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-12-01 14:52:34 +0000 |
| commit | f8538aec88b46642553a9ba9efa0952f5958dbed (patch) | |
| tree | 610aab3f005af0e5e801958014c49662b6361455 /drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c | |
| parent | mlxsw: Use u16 for local_port field instead of u8 (diff) | |
| download | wireguard-linux-f8538aec88b46642553a9ba9efa0952f5958dbed.tar.xz wireguard-linux-f8538aec88b46642553a9ba9efa0952f5958dbed.zip | |
mlxsw: Add support for more than 256 ports in SBSR register
Add 'port_page' field in SBSR to be able to query occupancy of more than
256 ports. The field determines the range of the ports specified in the
'ingress_port_mask' and 'egress_port_mask' bit masks:
>From '256 * port_page' to '256 * port_page + 255'.
For each local port, the appropriate port page is used. A query is never
performed for a port range that spans multiple port pages.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c index ad250b301d7e..98f26f596e30 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c @@ -1582,13 +1582,12 @@ int mlxsw_sp_sb_occ_snapshot(struct mlxsw_core *mlxsw_core, unsigned int sb_index) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); + u16 local_port, local_port_1, last_local_port; struct mlxsw_sp_sb_sr_occ_query_cb_ctx cb_ctx; + u8 masked_count, current_page = 0; unsigned long cb_priv = 0; LIST_HEAD(bulk_list); char *sbsr_pl; - u8 masked_count; - u16 local_port_1; - u16 local_port; int i; int err; int err2; @@ -1602,6 +1601,10 @@ next_batch: local_port_1 = local_port; masked_count = 0; mlxsw_reg_sbsr_pack(sbsr_pl, false); + mlxsw_reg_sbsr_port_page_set(sbsr_pl, current_page); + last_local_port = current_page * MLXSW_REG_SBSR_NUM_PORTS_IN_PAGE + + MLXSW_REG_SBSR_NUM_PORTS_IN_PAGE - 1; + for (i = 0; i < MLXSW_SP_SB_ING_TC_COUNT; i++) mlxsw_reg_sbsr_pg_buff_mask_set(sbsr_pl, i, 1); for (i = 0; i < MLXSW_SP_SB_EG_TC_COUNT; i++) @@ -1609,6 +1612,10 @@ next_batch: for (; local_port < mlxsw_core_max_ports(mlxsw_core); local_port++) { if (!mlxsw_sp->ports[local_port]) continue; + if (local_port > last_local_port) { + current_page++; + goto do_query; + } if (local_port != MLXSW_PORT_CPU_PORT) { /* Ingress quotas are not supported for the CPU port */ mlxsw_reg_sbsr_ingress_port_mask_set(sbsr_pl, @@ -1651,10 +1658,11 @@ int mlxsw_sp_sb_occ_max_clear(struct mlxsw_core *mlxsw_core, unsigned int sb_index) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); + u16 local_port, last_local_port; LIST_HEAD(bulk_list); - char *sbsr_pl; unsigned int masked_count; - u16 local_port; + u8 current_page = 0; + char *sbsr_pl; int i; int err; int err2; @@ -1667,6 +1675,10 @@ int mlxsw_sp_sb_occ_max_clear(struct mlxsw_core *mlxsw_core, next_batch: masked_count = 0; mlxsw_reg_sbsr_pack(sbsr_pl, true); + mlxsw_reg_sbsr_port_page_set(sbsr_pl, current_page); + last_local_port = current_page * MLXSW_REG_SBSR_NUM_PORTS_IN_PAGE + + MLXSW_REG_SBSR_NUM_PORTS_IN_PAGE - 1; + for (i = 0; i < MLXSW_SP_SB_ING_TC_COUNT; i++) mlxsw_reg_sbsr_pg_buff_mask_set(sbsr_pl, i, 1); for (i = 0; i < MLXSW_SP_SB_EG_TC_COUNT; i++) @@ -1674,6 +1686,10 @@ next_batch: for (; local_port < mlxsw_core_max_ports(mlxsw_core); local_port++) { if (!mlxsw_sp->ports[local_port]) continue; + if (local_port > last_local_port) { + current_page++; + goto do_query; + } if (local_port != MLXSW_PORT_CPU_PORT) { /* Ingress quotas are not supported for the CPU port */ mlxsw_reg_sbsr_ingress_port_mask_set(sbsr_pl, |