mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 07:15:07 +07:00
87259f1877
The shared buffer pools are containers whose size is used to calculate
the maximum usage for packets from / to a specific port / {port, PG/TC},
when dynamic threshold is employed.
While it's perfectly fine for the sum of the pools to exceed the maximum
size of the shared buffer, a single pool cannot.
Add a check when the pool size is set and forbid sizes larger than the
maximum size of the shared buffer.
Without the patch:
$ devlink sb pool set pci/0000:03:00.0 pool 0 size 999999999 thtype
dynamic
// No error is returned
With the patch:
$ devlink sb pool set pci/0000:03:00.0 pool 0 size 999999999 thtype
dynamic
devlink answers: Invalid argument
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
958 lines
28 KiB
C
958 lines
28 KiB
C
/*
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* drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
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* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/dcbnl.h>
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#include <linux/if_ether.h>
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#include <linux/list.h>
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#include "spectrum.h"
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#include "core.h"
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#include "port.h"
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#include "reg.h"
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static struct mlxsw_sp_sb_pr *mlxsw_sp_sb_pr_get(struct mlxsw_sp *mlxsw_sp,
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u8 pool,
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enum mlxsw_reg_sbxx_dir dir)
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{
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return &mlxsw_sp->sb.prs[dir][pool];
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}
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static struct mlxsw_sp_sb_cm *mlxsw_sp_sb_cm_get(struct mlxsw_sp *mlxsw_sp,
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u8 local_port, u8 pg_buff,
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enum mlxsw_reg_sbxx_dir dir)
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{
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return &mlxsw_sp->sb.ports[local_port].cms[dir][pg_buff];
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}
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static struct mlxsw_sp_sb_pm *mlxsw_sp_sb_pm_get(struct mlxsw_sp *mlxsw_sp,
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u8 local_port, u8 pool,
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enum mlxsw_reg_sbxx_dir dir)
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{
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return &mlxsw_sp->sb.ports[local_port].pms[dir][pool];
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}
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static int mlxsw_sp_sb_pr_write(struct mlxsw_sp *mlxsw_sp, u8 pool,
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enum mlxsw_reg_sbxx_dir dir,
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enum mlxsw_reg_sbpr_mode mode, u32 size)
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{
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char sbpr_pl[MLXSW_REG_SBPR_LEN];
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struct mlxsw_sp_sb_pr *pr;
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int err;
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mlxsw_reg_sbpr_pack(sbpr_pl, pool, dir, mode, size);
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err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbpr), sbpr_pl);
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if (err)
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return err;
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pr = mlxsw_sp_sb_pr_get(mlxsw_sp, pool, dir);
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pr->mode = mode;
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pr->size = size;
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return 0;
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}
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static int mlxsw_sp_sb_cm_write(struct mlxsw_sp *mlxsw_sp, u8 local_port,
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u8 pg_buff, enum mlxsw_reg_sbxx_dir dir,
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u32 min_buff, u32 max_buff, u8 pool)
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{
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char sbcm_pl[MLXSW_REG_SBCM_LEN];
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int err;
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mlxsw_reg_sbcm_pack(sbcm_pl, local_port, pg_buff, dir,
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min_buff, max_buff, pool);
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err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbcm), sbcm_pl);
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if (err)
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return err;
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if (pg_buff < MLXSW_SP_SB_TC_COUNT) {
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struct mlxsw_sp_sb_cm *cm;
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cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port, pg_buff, dir);
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cm->min_buff = min_buff;
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cm->max_buff = max_buff;
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cm->pool = pool;
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}
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return 0;
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}
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static int mlxsw_sp_sb_pm_write(struct mlxsw_sp *mlxsw_sp, u8 local_port,
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u8 pool, enum mlxsw_reg_sbxx_dir dir,
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u32 min_buff, u32 max_buff)
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{
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char sbpm_pl[MLXSW_REG_SBPM_LEN];
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struct mlxsw_sp_sb_pm *pm;
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int err;
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mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, false,
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min_buff, max_buff);
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err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl);
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if (err)
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return err;
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pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port, pool, dir);
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pm->min_buff = min_buff;
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pm->max_buff = max_buff;
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return 0;
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}
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static int mlxsw_sp_sb_pm_occ_clear(struct mlxsw_sp *mlxsw_sp, u8 local_port,
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u8 pool, enum mlxsw_reg_sbxx_dir dir,
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struct list_head *bulk_list)
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{
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char sbpm_pl[MLXSW_REG_SBPM_LEN];
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mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, true, 0, 0);
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return mlxsw_reg_trans_query(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl,
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bulk_list, NULL, 0);
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}
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static void mlxsw_sp_sb_pm_occ_query_cb(struct mlxsw_core *mlxsw_core,
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char *sbpm_pl, size_t sbpm_pl_len,
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unsigned long cb_priv)
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{
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struct mlxsw_sp_sb_pm *pm = (struct mlxsw_sp_sb_pm *) cb_priv;
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mlxsw_reg_sbpm_unpack(sbpm_pl, &pm->occ.cur, &pm->occ.max);
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}
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static int mlxsw_sp_sb_pm_occ_query(struct mlxsw_sp *mlxsw_sp, u8 local_port,
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u8 pool, enum mlxsw_reg_sbxx_dir dir,
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struct list_head *bulk_list)
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{
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char sbpm_pl[MLXSW_REG_SBPM_LEN];
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struct mlxsw_sp_sb_pm *pm;
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pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port, pool, dir);
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mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, false, 0, 0);
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return mlxsw_reg_trans_query(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl,
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bulk_list,
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mlxsw_sp_sb_pm_occ_query_cb,
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(unsigned long) pm);
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}
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static const u16 mlxsw_sp_pbs[] = {
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[0] = 2 * MLXSW_SP_BYTES_TO_CELLS(ETH_FRAME_LEN),
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[9] = 2 * MLXSW_SP_BYTES_TO_CELLS(MLXSW_PORT_MAX_MTU),
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};
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#define MLXSW_SP_PBS_LEN ARRAY_SIZE(mlxsw_sp_pbs)
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#define MLXSW_SP_PB_UNUSED 8
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static int mlxsw_sp_port_pb_init(struct mlxsw_sp_port *mlxsw_sp_port)
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{
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char pbmc_pl[MLXSW_REG_PBMC_LEN];
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int i;
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mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port,
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0xffff, 0xffff / 2);
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for (i = 0; i < MLXSW_SP_PBS_LEN; i++) {
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if (i == MLXSW_SP_PB_UNUSED)
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continue;
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mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, i, mlxsw_sp_pbs[i]);
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}
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mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl,
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MLXSW_REG_PBMC_PORT_SHARED_BUF_IDX, 0);
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return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core,
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MLXSW_REG(pbmc), pbmc_pl);
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}
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static int mlxsw_sp_port_pb_prio_init(struct mlxsw_sp_port *mlxsw_sp_port)
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{
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char pptb_pl[MLXSW_REG_PPTB_LEN];
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int i;
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mlxsw_reg_pptb_pack(pptb_pl, mlxsw_sp_port->local_port);
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for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
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mlxsw_reg_pptb_prio_to_buff_pack(pptb_pl, i, 0);
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return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pptb),
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pptb_pl);
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}
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static int mlxsw_sp_port_headroom_init(struct mlxsw_sp_port *mlxsw_sp_port)
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{
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int err;
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err = mlxsw_sp_port_pb_init(mlxsw_sp_port);
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if (err)
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return err;
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return mlxsw_sp_port_pb_prio_init(mlxsw_sp_port);
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}
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#define MLXSW_SP_SB_PR_INGRESS_SIZE \
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(15000000 - (2 * 20000 * MLXSW_PORT_MAX_PORTS))
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#define MLXSW_SP_SB_PR_INGRESS_MNG_SIZE (200 * 1000)
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#define MLXSW_SP_SB_PR_EGRESS_SIZE \
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(14000000 - (8 * 1500 * MLXSW_PORT_MAX_PORTS))
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#define MLXSW_SP_SB_PR(_mode, _size) \
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{ \
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.mode = _mode, \
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.size = _size, \
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}
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static const struct mlxsw_sp_sb_pr mlxsw_sp_sb_prs_ingress[] = {
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
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MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_INGRESS_SIZE)),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
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MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_INGRESS_MNG_SIZE)),
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};
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#define MLXSW_SP_SB_PRS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_prs_ingress)
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static const struct mlxsw_sp_sb_pr mlxsw_sp_sb_prs_egress[] = {
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC,
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MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_EGRESS_SIZE)),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
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MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0),
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};
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#define MLXSW_SP_SB_PRS_EGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_prs_egress)
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static int __mlxsw_sp_sb_prs_init(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_reg_sbxx_dir dir,
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const struct mlxsw_sp_sb_pr *prs,
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size_t prs_len)
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{
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int i;
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int err;
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for (i = 0; i < prs_len; i++) {
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const struct mlxsw_sp_sb_pr *pr;
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pr = &prs[i];
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err = mlxsw_sp_sb_pr_write(mlxsw_sp, i, dir,
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pr->mode, pr->size);
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if (err)
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return err;
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}
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return 0;
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}
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static int mlxsw_sp_sb_prs_init(struct mlxsw_sp *mlxsw_sp)
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{
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int err;
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err = __mlxsw_sp_sb_prs_init(mlxsw_sp, MLXSW_REG_SBXX_DIR_INGRESS,
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mlxsw_sp_sb_prs_ingress,
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MLXSW_SP_SB_PRS_INGRESS_LEN);
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if (err)
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return err;
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return __mlxsw_sp_sb_prs_init(mlxsw_sp, MLXSW_REG_SBXX_DIR_EGRESS,
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mlxsw_sp_sb_prs_egress,
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MLXSW_SP_SB_PRS_EGRESS_LEN);
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}
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#define MLXSW_SP_SB_CM(_min_buff, _max_buff, _pool) \
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{ \
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.min_buff = _min_buff, \
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.max_buff = _max_buff, \
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.pool = _pool, \
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}
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static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_ingress[] = {
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(10000), 8, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0),
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MLXSW_SP_SB_CM(0, 0, 0), /* dummy, this PG does not exist */
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(20000), 1, 3),
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};
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#define MLXSW_SP_SB_CMS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_cms_ingress)
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static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_egress[] = {
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(0, 0, 0),
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MLXSW_SP_SB_CM(1, 0xff, 0),
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};
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#define MLXSW_SP_SB_CMS_EGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_cms_egress)
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#define MLXSW_SP_CPU_PORT_SB_CM MLXSW_SP_SB_CM(0, 0, 0)
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static const struct mlxsw_sp_sb_cm mlxsw_sp_cpu_port_sb_cms[] = {
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(10000), 0, 0),
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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MLXSW_SP_CPU_PORT_SB_CM,
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};
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#define MLXSW_SP_CPU_PORT_SB_MCS_LEN \
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ARRAY_SIZE(mlxsw_sp_cpu_port_sb_cms)
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static int __mlxsw_sp_sb_cms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port,
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enum mlxsw_reg_sbxx_dir dir,
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const struct mlxsw_sp_sb_cm *cms,
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size_t cms_len)
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{
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int i;
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int err;
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for (i = 0; i < cms_len; i++) {
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const struct mlxsw_sp_sb_cm *cm;
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|
|
if (i == 8 && dir == MLXSW_REG_SBXX_DIR_INGRESS)
|
|
continue; /* PG number 8 does not exist, skip it */
|
|
cm = &cms[i];
|
|
err = mlxsw_sp_sb_cm_write(mlxsw_sp, local_port, i, dir,
|
|
cm->min_buff, cm->max_buff,
|
|
cm->pool);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mlxsw_sp_port_sb_cms_init(struct mlxsw_sp_port *mlxsw_sp_port)
|
|
{
|
|
int err;
|
|
|
|
err = __mlxsw_sp_sb_cms_init(mlxsw_sp_port->mlxsw_sp,
|
|
mlxsw_sp_port->local_port,
|
|
MLXSW_REG_SBXX_DIR_INGRESS,
|
|
mlxsw_sp_sb_cms_ingress,
|
|
MLXSW_SP_SB_CMS_INGRESS_LEN);
|
|
if (err)
|
|
return err;
|
|
return __mlxsw_sp_sb_cms_init(mlxsw_sp_port->mlxsw_sp,
|
|
mlxsw_sp_port->local_port,
|
|
MLXSW_REG_SBXX_DIR_EGRESS,
|
|
mlxsw_sp_sb_cms_egress,
|
|
MLXSW_SP_SB_CMS_EGRESS_LEN);
|
|
}
|
|
|
|
static int mlxsw_sp_cpu_port_sb_cms_init(struct mlxsw_sp *mlxsw_sp)
|
|
{
|
|
return __mlxsw_sp_sb_cms_init(mlxsw_sp, 0, MLXSW_REG_SBXX_DIR_EGRESS,
|
|
mlxsw_sp_cpu_port_sb_cms,
|
|
MLXSW_SP_CPU_PORT_SB_MCS_LEN);
|
|
}
|
|
|
|
#define MLXSW_SP_SB_PM(_min_buff, _max_buff) \
|
|
{ \
|
|
.min_buff = _min_buff, \
|
|
.max_buff = _max_buff, \
|
|
}
|
|
|
|
static const struct mlxsw_sp_sb_pm mlxsw_sp_sb_pms_ingress[] = {
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MAX),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MAX),
|
|
};
|
|
|
|
#define MLXSW_SP_SB_PMS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_pms_ingress)
|
|
|
|
static const struct mlxsw_sp_sb_pm mlxsw_sp_sb_pms_egress[] = {
|
|
MLXSW_SP_SB_PM(0, 7),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
|
|
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
|
|
};
|
|
|
|
#define MLXSW_SP_SB_PMS_EGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_pms_egress)
|
|
|
|
static int __mlxsw_sp_port_sb_pms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port,
|
|
enum mlxsw_reg_sbxx_dir dir,
|
|
const struct mlxsw_sp_sb_pm *pms,
|
|
size_t pms_len)
|
|
{
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < pms_len; i++) {
|
|
const struct mlxsw_sp_sb_pm *pm;
|
|
|
|
pm = &pms[i];
|
|
err = mlxsw_sp_sb_pm_write(mlxsw_sp, local_port, i, dir,
|
|
pm->min_buff, pm->max_buff);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
|
|
{
|
|
int err;
|
|
|
|
err = __mlxsw_sp_port_sb_pms_init(mlxsw_sp_port->mlxsw_sp,
|
|
mlxsw_sp_port->local_port,
|
|
MLXSW_REG_SBXX_DIR_INGRESS,
|
|
mlxsw_sp_sb_pms_ingress,
|
|
MLXSW_SP_SB_PMS_INGRESS_LEN);
|
|
if (err)
|
|
return err;
|
|
return __mlxsw_sp_port_sb_pms_init(mlxsw_sp_port->mlxsw_sp,
|
|
mlxsw_sp_port->local_port,
|
|
MLXSW_REG_SBXX_DIR_EGRESS,
|
|
mlxsw_sp_sb_pms_egress,
|
|
MLXSW_SP_SB_PMS_EGRESS_LEN);
|
|
}
|
|
|
|
struct mlxsw_sp_sb_mm {
|
|
u32 min_buff;
|
|
u32 max_buff;
|
|
u8 pool;
|
|
};
|
|
|
|
#define MLXSW_SP_SB_MM(_min_buff, _max_buff, _pool) \
|
|
{ \
|
|
.min_buff = _min_buff, \
|
|
.max_buff = _max_buff, \
|
|
.pool = _pool, \
|
|
}
|
|
|
|
static const struct mlxsw_sp_sb_mm mlxsw_sp_sb_mms[] = {
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0),
|
|
};
|
|
|
|
#define MLXSW_SP_SB_MMS_LEN ARRAY_SIZE(mlxsw_sp_sb_mms)
|
|
|
|
static int mlxsw_sp_sb_mms_init(struct mlxsw_sp *mlxsw_sp)
|
|
{
|
|
char sbmm_pl[MLXSW_REG_SBMM_LEN];
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < MLXSW_SP_SB_MMS_LEN; i++) {
|
|
const struct mlxsw_sp_sb_mm *mc;
|
|
|
|
mc = &mlxsw_sp_sb_mms[i];
|
|
mlxsw_reg_sbmm_pack(sbmm_pl, i, mc->min_buff,
|
|
mc->max_buff, mc->pool);
|
|
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbmm), sbmm_pl);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define MLXSW_SP_SB_SIZE (16 * 1024 * 1024)
|
|
|
|
int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp)
|
|
{
|
|
int err;
|
|
|
|
err = mlxsw_sp_sb_prs_init(mlxsw_sp);
|
|
if (err)
|
|
return err;
|
|
err = mlxsw_sp_cpu_port_sb_cms_init(mlxsw_sp);
|
|
if (err)
|
|
return err;
|
|
err = mlxsw_sp_sb_mms_init(mlxsw_sp);
|
|
if (err)
|
|
return err;
|
|
return devlink_sb_register(priv_to_devlink(mlxsw_sp->core), 0,
|
|
MLXSW_SP_SB_SIZE,
|
|
MLXSW_SP_SB_POOL_COUNT,
|
|
MLXSW_SP_SB_POOL_COUNT,
|
|
MLXSW_SP_SB_TC_COUNT,
|
|
MLXSW_SP_SB_TC_COUNT);
|
|
}
|
|
|
|
void mlxsw_sp_buffers_fini(struct mlxsw_sp *mlxsw_sp)
|
|
{
|
|
devlink_sb_unregister(priv_to_devlink(mlxsw_sp->core), 0);
|
|
}
|
|
|
|
int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port)
|
|
{
|
|
int err;
|
|
|
|
err = mlxsw_sp_port_headroom_init(mlxsw_sp_port);
|
|
if (err)
|
|
return err;
|
|
err = mlxsw_sp_port_sb_cms_init(mlxsw_sp_port);
|
|
if (err)
|
|
return err;
|
|
err = mlxsw_sp_port_sb_pms_init(mlxsw_sp_port);
|
|
|
|
return err;
|
|
}
|
|
|
|
static u8 pool_get(u16 pool_index)
|
|
{
|
|
return pool_index % MLXSW_SP_SB_POOL_COUNT;
|
|
}
|
|
|
|
static u16 pool_index_get(u8 pool, enum mlxsw_reg_sbxx_dir dir)
|
|
{
|
|
u16 pool_index;
|
|
|
|
pool_index = pool;
|
|
if (dir == MLXSW_REG_SBXX_DIR_EGRESS)
|
|
pool_index += MLXSW_SP_SB_POOL_COUNT;
|
|
return pool_index;
|
|
}
|
|
|
|
static enum mlxsw_reg_sbxx_dir dir_get(u16 pool_index)
|
|
{
|
|
return pool_index < MLXSW_SP_SB_POOL_COUNT ?
|
|
MLXSW_REG_SBXX_DIR_INGRESS : MLXSW_REG_SBXX_DIR_EGRESS;
|
|
}
|
|
|
|
int mlxsw_sp_sb_pool_get(struct mlxsw_core *mlxsw_core,
|
|
unsigned int sb_index, u16 pool_index,
|
|
struct devlink_sb_pool_info *pool_info)
|
|
{
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
|
|
u8 pool = pool_get(pool_index);
|
|
enum mlxsw_reg_sbxx_dir dir = dir_get(pool_index);
|
|
struct mlxsw_sp_sb_pr *pr = mlxsw_sp_sb_pr_get(mlxsw_sp, pool, dir);
|
|
|
|
pool_info->pool_type = (enum devlink_sb_pool_type) dir;
|
|
pool_info->size = MLXSW_SP_CELLS_TO_BYTES(pr->size);
|
|
pool_info->threshold_type = (enum devlink_sb_threshold_type) pr->mode;
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_sp_sb_pool_set(struct mlxsw_core *mlxsw_core,
|
|
unsigned int sb_index, u16 pool_index, u32 size,
|
|
enum devlink_sb_threshold_type threshold_type)
|
|
{
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
|
|
u8 pool = pool_get(pool_index);
|
|
enum mlxsw_reg_sbxx_dir dir = dir_get(pool_index);
|
|
u32 pool_size = MLXSW_SP_BYTES_TO_CELLS(size);
|
|
enum mlxsw_reg_sbpr_mode mode;
|
|
|
|
if (size > MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_BUFFER_SIZE))
|
|
return -EINVAL;
|
|
|
|
mode = (enum mlxsw_reg_sbpr_mode) threshold_type;
|
|
return mlxsw_sp_sb_pr_write(mlxsw_sp, pool, dir, mode, pool_size);
|
|
}
|
|
|
|
#define MLXSW_SP_SB_THRESHOLD_TO_ALPHA_OFFSET (-2) /* 3->1, 16->14 */
|
|
|
|
static u32 mlxsw_sp_sb_threshold_out(struct mlxsw_sp *mlxsw_sp, u8 pool,
|
|
enum mlxsw_reg_sbxx_dir dir, u32 max_buff)
|
|
{
|
|
struct mlxsw_sp_sb_pr *pr = mlxsw_sp_sb_pr_get(mlxsw_sp, pool, dir);
|
|
|
|
if (pr->mode == MLXSW_REG_SBPR_MODE_DYNAMIC)
|
|
return max_buff - MLXSW_SP_SB_THRESHOLD_TO_ALPHA_OFFSET;
|
|
return MLXSW_SP_CELLS_TO_BYTES(max_buff);
|
|
}
|
|
|
|
static int mlxsw_sp_sb_threshold_in(struct mlxsw_sp *mlxsw_sp, u8 pool,
|
|
enum mlxsw_reg_sbxx_dir dir, u32 threshold,
|
|
u32 *p_max_buff)
|
|
{
|
|
struct mlxsw_sp_sb_pr *pr = mlxsw_sp_sb_pr_get(mlxsw_sp, pool, dir);
|
|
|
|
if (pr->mode == MLXSW_REG_SBPR_MODE_DYNAMIC) {
|
|
int val;
|
|
|
|
val = threshold + MLXSW_SP_SB_THRESHOLD_TO_ALPHA_OFFSET;
|
|
if (val < MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN ||
|
|
val > MLXSW_REG_SBXX_DYN_MAX_BUFF_MAX)
|
|
return -EINVAL;
|
|
*p_max_buff = val;
|
|
} else {
|
|
*p_max_buff = MLXSW_SP_BYTES_TO_CELLS(threshold);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_sp_sb_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_threshold)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pool = pool_get(pool_index);
|
|
enum mlxsw_reg_sbxx_dir dir = dir_get(pool_index);
|
|
struct mlxsw_sp_sb_pm *pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port,
|
|
pool, dir);
|
|
|
|
*p_threshold = mlxsw_sp_sb_threshold_out(mlxsw_sp, pool, dir,
|
|
pm->max_buff);
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_sp_sb_port_pool_set(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 threshold)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pool = pool_get(pool_index);
|
|
enum mlxsw_reg_sbxx_dir dir = dir_get(pool_index);
|
|
u32 max_buff;
|
|
int err;
|
|
|
|
err = mlxsw_sp_sb_threshold_in(mlxsw_sp, pool, dir,
|
|
threshold, &max_buff);
|
|
if (err)
|
|
return err;
|
|
|
|
return mlxsw_sp_sb_pm_write(mlxsw_sp, local_port, pool, dir,
|
|
0, max_buff);
|
|
}
|
|
|
|
int mlxsw_sp_sb_tc_pool_bind_get(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 *p_pool_index, u32 *p_threshold)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pg_buff = tc_index;
|
|
enum mlxsw_reg_sbxx_dir dir = (enum mlxsw_reg_sbxx_dir) pool_type;
|
|
struct mlxsw_sp_sb_cm *cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port,
|
|
pg_buff, dir);
|
|
|
|
*p_threshold = mlxsw_sp_sb_threshold_out(mlxsw_sp, cm->pool, dir,
|
|
cm->max_buff);
|
|
*p_pool_index = pool_index_get(cm->pool, dir);
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_sp_sb_tc_pool_bind_set(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 pool_index, u32 threshold)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pg_buff = tc_index;
|
|
enum mlxsw_reg_sbxx_dir dir = (enum mlxsw_reg_sbxx_dir) pool_type;
|
|
u8 pool = pool_get(pool_index);
|
|
u32 max_buff;
|
|
int err;
|
|
|
|
if (dir != dir_get(pool_index))
|
|
return -EINVAL;
|
|
|
|
err = mlxsw_sp_sb_threshold_in(mlxsw_sp, pool, dir,
|
|
threshold, &max_buff);
|
|
if (err)
|
|
return err;
|
|
|
|
return mlxsw_sp_sb_cm_write(mlxsw_sp, local_port, pg_buff, dir,
|
|
0, max_buff, pool);
|
|
}
|
|
|
|
#define MASKED_COUNT_MAX \
|
|
(MLXSW_REG_SBSR_REC_MAX_COUNT / (MLXSW_SP_SB_TC_COUNT * 2))
|
|
|
|
struct mlxsw_sp_sb_sr_occ_query_cb_ctx {
|
|
u8 masked_count;
|
|
u8 local_port_1;
|
|
};
|
|
|
|
static void mlxsw_sp_sb_sr_occ_query_cb(struct mlxsw_core *mlxsw_core,
|
|
char *sbsr_pl, size_t sbsr_pl_len,
|
|
unsigned long cb_priv)
|
|
{
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
|
|
struct mlxsw_sp_sb_sr_occ_query_cb_ctx cb_ctx;
|
|
u8 masked_count;
|
|
u8 local_port;
|
|
int rec_index = 0;
|
|
struct mlxsw_sp_sb_cm *cm;
|
|
int i;
|
|
|
|
memcpy(&cb_ctx, &cb_priv, sizeof(cb_ctx));
|
|
|
|
masked_count = 0;
|
|
for (local_port = cb_ctx.local_port_1;
|
|
local_port < MLXSW_PORT_MAX_PORTS; local_port++) {
|
|
if (!mlxsw_sp->ports[local_port])
|
|
continue;
|
|
for (i = 0; i < MLXSW_SP_SB_TC_COUNT; i++) {
|
|
cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_INGRESS);
|
|
mlxsw_reg_sbsr_rec_unpack(sbsr_pl, rec_index++,
|
|
&cm->occ.cur, &cm->occ.max);
|
|
}
|
|
if (++masked_count == cb_ctx.masked_count)
|
|
break;
|
|
}
|
|
masked_count = 0;
|
|
for (local_port = cb_ctx.local_port_1;
|
|
local_port < MLXSW_PORT_MAX_PORTS; local_port++) {
|
|
if (!mlxsw_sp->ports[local_port])
|
|
continue;
|
|
for (i = 0; i < MLXSW_SP_SB_TC_COUNT; i++) {
|
|
cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_EGRESS);
|
|
mlxsw_reg_sbsr_rec_unpack(sbsr_pl, rec_index++,
|
|
&cm->occ.cur, &cm->occ.max);
|
|
}
|
|
if (++masked_count == cb_ctx.masked_count)
|
|
break;
|
|
}
|
|
}
|
|
|
|
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);
|
|
struct mlxsw_sp_sb_sr_occ_query_cb_ctx cb_ctx;
|
|
unsigned long cb_priv;
|
|
LIST_HEAD(bulk_list);
|
|
char *sbsr_pl;
|
|
u8 masked_count;
|
|
u8 local_port_1;
|
|
u8 local_port = 0;
|
|
int i;
|
|
int err;
|
|
int err2;
|
|
|
|
sbsr_pl = kmalloc(MLXSW_REG_SBSR_LEN, GFP_KERNEL);
|
|
if (!sbsr_pl)
|
|
return -ENOMEM;
|
|
|
|
next_batch:
|
|
local_port++;
|
|
local_port_1 = local_port;
|
|
masked_count = 0;
|
|
mlxsw_reg_sbsr_pack(sbsr_pl, false);
|
|
for (i = 0; i < MLXSW_SP_SB_TC_COUNT; i++) {
|
|
mlxsw_reg_sbsr_pg_buff_mask_set(sbsr_pl, i, 1);
|
|
mlxsw_reg_sbsr_tclass_mask_set(sbsr_pl, i, 1);
|
|
}
|
|
for (; local_port < MLXSW_PORT_MAX_PORTS; local_port++) {
|
|
if (!mlxsw_sp->ports[local_port])
|
|
continue;
|
|
mlxsw_reg_sbsr_ingress_port_mask_set(sbsr_pl, local_port, 1);
|
|
mlxsw_reg_sbsr_egress_port_mask_set(sbsr_pl, local_port, 1);
|
|
for (i = 0; i < MLXSW_SP_SB_POOL_COUNT; i++) {
|
|
err = mlxsw_sp_sb_pm_occ_query(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_INGRESS,
|
|
&bulk_list);
|
|
if (err)
|
|
goto out;
|
|
err = mlxsw_sp_sb_pm_occ_query(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_EGRESS,
|
|
&bulk_list);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
if (++masked_count == MASKED_COUNT_MAX)
|
|
goto do_query;
|
|
}
|
|
|
|
do_query:
|
|
cb_ctx.masked_count = masked_count;
|
|
cb_ctx.local_port_1 = local_port_1;
|
|
memcpy(&cb_priv, &cb_ctx, sizeof(cb_ctx));
|
|
err = mlxsw_reg_trans_query(mlxsw_core, MLXSW_REG(sbsr), sbsr_pl,
|
|
&bulk_list, mlxsw_sp_sb_sr_occ_query_cb,
|
|
cb_priv);
|
|
if (err)
|
|
goto out;
|
|
if (local_port < MLXSW_PORT_MAX_PORTS)
|
|
goto next_batch;
|
|
|
|
out:
|
|
err2 = mlxsw_reg_trans_bulk_wait(&bulk_list);
|
|
if (!err)
|
|
err = err2;
|
|
kfree(sbsr_pl);
|
|
return err;
|
|
}
|
|
|
|
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);
|
|
LIST_HEAD(bulk_list);
|
|
char *sbsr_pl;
|
|
unsigned int masked_count;
|
|
u8 local_port = 0;
|
|
int i;
|
|
int err;
|
|
int err2;
|
|
|
|
sbsr_pl = kmalloc(MLXSW_REG_SBSR_LEN, GFP_KERNEL);
|
|
if (!sbsr_pl)
|
|
return -ENOMEM;
|
|
|
|
next_batch:
|
|
local_port++;
|
|
masked_count = 0;
|
|
mlxsw_reg_sbsr_pack(sbsr_pl, true);
|
|
for (i = 0; i < MLXSW_SP_SB_TC_COUNT; i++) {
|
|
mlxsw_reg_sbsr_pg_buff_mask_set(sbsr_pl, i, 1);
|
|
mlxsw_reg_sbsr_tclass_mask_set(sbsr_pl, i, 1);
|
|
}
|
|
for (; local_port < MLXSW_PORT_MAX_PORTS; local_port++) {
|
|
if (!mlxsw_sp->ports[local_port])
|
|
continue;
|
|
mlxsw_reg_sbsr_ingress_port_mask_set(sbsr_pl, local_port, 1);
|
|
mlxsw_reg_sbsr_egress_port_mask_set(sbsr_pl, local_port, 1);
|
|
for (i = 0; i < MLXSW_SP_SB_POOL_COUNT; i++) {
|
|
err = mlxsw_sp_sb_pm_occ_clear(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_INGRESS,
|
|
&bulk_list);
|
|
if (err)
|
|
goto out;
|
|
err = mlxsw_sp_sb_pm_occ_clear(mlxsw_sp, local_port, i,
|
|
MLXSW_REG_SBXX_DIR_EGRESS,
|
|
&bulk_list);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
if (++masked_count == MASKED_COUNT_MAX)
|
|
goto do_query;
|
|
}
|
|
|
|
do_query:
|
|
err = mlxsw_reg_trans_query(mlxsw_core, MLXSW_REG(sbsr), sbsr_pl,
|
|
&bulk_list, NULL, 0);
|
|
if (err)
|
|
goto out;
|
|
if (local_port < MLXSW_PORT_MAX_PORTS)
|
|
goto next_batch;
|
|
|
|
out:
|
|
err2 = mlxsw_reg_trans_bulk_wait(&bulk_list);
|
|
if (!err)
|
|
err = err2;
|
|
kfree(sbsr_pl);
|
|
return err;
|
|
}
|
|
|
|
int mlxsw_sp_sb_occ_port_pool_get(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_cur, u32 *p_max)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pool = pool_get(pool_index);
|
|
enum mlxsw_reg_sbxx_dir dir = dir_get(pool_index);
|
|
struct mlxsw_sp_sb_pm *pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port,
|
|
pool, dir);
|
|
|
|
*p_cur = MLXSW_SP_CELLS_TO_BYTES(pm->occ.cur);
|
|
*p_max = MLXSW_SP_CELLS_TO_BYTES(pm->occ.max);
|
|
return 0;
|
|
}
|
|
|
|
int mlxsw_sp_sb_occ_tc_port_bind_get(struct mlxsw_core_port *mlxsw_core_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u32 *p_cur, u32 *p_max)
|
|
{
|
|
struct mlxsw_sp_port *mlxsw_sp_port =
|
|
mlxsw_core_port_driver_priv(mlxsw_core_port);
|
|
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
|
|
u8 local_port = mlxsw_sp_port->local_port;
|
|
u8 pg_buff = tc_index;
|
|
enum mlxsw_reg_sbxx_dir dir = (enum mlxsw_reg_sbxx_dir) pool_type;
|
|
struct mlxsw_sp_sb_cm *cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port,
|
|
pg_buff, dir);
|
|
|
|
*p_cur = MLXSW_SP_CELLS_TO_BYTES(cm->occ.cur);
|
|
*p_max = MLXSW_SP_CELLS_TO_BYTES(cm->occ.max);
|
|
return 0;
|
|
}
|