From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sun, 11 Sep 2016 04:34:46 -0300 Subject: Linux-libre 4.7.1-gnu --- .../net/ethernet/mellanox/mlxsw/spectrum_buffers.c | 1001 +++++++++++++++----- 1 file changed, 768 insertions(+), 233 deletions(-) (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c') diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c index d59195e3f..074cdda7b 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c @@ -34,36 +34,140 @@ #include #include +#include +#include +#include #include "spectrum.h" #include "core.h" #include "port.h" #include "reg.h" -struct mlxsw_sp_pb { - u8 index; - u16 size; -}; +static struct mlxsw_sp_sb_pr *mlxsw_sp_sb_pr_get(struct mlxsw_sp *mlxsw_sp, + u8 pool, + enum mlxsw_reg_sbxx_dir dir) +{ + return &mlxsw_sp->sb.prs[dir][pool]; +} -#define MLXSW_SP_PB(_index, _size) \ - { \ - .index = _index, \ - .size = _size, \ +static struct mlxsw_sp_sb_cm *mlxsw_sp_sb_cm_get(struct mlxsw_sp *mlxsw_sp, + u8 local_port, u8 pg_buff, + enum mlxsw_reg_sbxx_dir dir) +{ + return &mlxsw_sp->sb.ports[local_port].cms[dir][pg_buff]; +} + +static struct mlxsw_sp_sb_pm *mlxsw_sp_sb_pm_get(struct mlxsw_sp *mlxsw_sp, + u8 local_port, u8 pool, + enum mlxsw_reg_sbxx_dir dir) +{ + return &mlxsw_sp->sb.ports[local_port].pms[dir][pool]; +} + +static int mlxsw_sp_sb_pr_write(struct mlxsw_sp *mlxsw_sp, u8 pool, + enum mlxsw_reg_sbxx_dir dir, + enum mlxsw_reg_sbpr_mode mode, u32 size) +{ + char sbpr_pl[MLXSW_REG_SBPR_LEN]; + struct mlxsw_sp_sb_pr *pr; + int err; + + mlxsw_reg_sbpr_pack(sbpr_pl, pool, dir, mode, size); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbpr), sbpr_pl); + if (err) + return err; + + pr = mlxsw_sp_sb_pr_get(mlxsw_sp, pool, dir); + pr->mode = mode; + pr->size = size; + return 0; +} + +static int mlxsw_sp_sb_cm_write(struct mlxsw_sp *mlxsw_sp, u8 local_port, + u8 pg_buff, enum mlxsw_reg_sbxx_dir dir, + u32 min_buff, u32 max_buff, u8 pool) +{ + char sbcm_pl[MLXSW_REG_SBCM_LEN]; + int err; + + mlxsw_reg_sbcm_pack(sbcm_pl, local_port, pg_buff, dir, + min_buff, max_buff, pool); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbcm), sbcm_pl); + if (err) + return err; + if (pg_buff < MLXSW_SP_SB_TC_COUNT) { + struct mlxsw_sp_sb_cm *cm; + + cm = mlxsw_sp_sb_cm_get(mlxsw_sp, local_port, pg_buff, dir); + cm->min_buff = min_buff; + cm->max_buff = max_buff; + cm->pool = pool; } + return 0; +} + +static int mlxsw_sp_sb_pm_write(struct mlxsw_sp *mlxsw_sp, u8 local_port, + u8 pool, enum mlxsw_reg_sbxx_dir dir, + u32 min_buff, u32 max_buff) +{ + char sbpm_pl[MLXSW_REG_SBPM_LEN]; + struct mlxsw_sp_sb_pm *pm; + int err; + + mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, false, + min_buff, max_buff); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl); + if (err) + return err; + + pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port, pool, dir); + pm->min_buff = min_buff; + pm->max_buff = max_buff; + return 0; +} + +static int mlxsw_sp_sb_pm_occ_clear(struct mlxsw_sp *mlxsw_sp, u8 local_port, + u8 pool, enum mlxsw_reg_sbxx_dir dir, + struct list_head *bulk_list) +{ + char sbpm_pl[MLXSW_REG_SBPM_LEN]; + + mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, true, 0, 0); + return mlxsw_reg_trans_query(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl, + bulk_list, NULL, 0); +} + +static void mlxsw_sp_sb_pm_occ_query_cb(struct mlxsw_core *mlxsw_core, + char *sbpm_pl, size_t sbpm_pl_len, + unsigned long cb_priv) +{ + struct mlxsw_sp_sb_pm *pm = (struct mlxsw_sp_sb_pm *) cb_priv; + + mlxsw_reg_sbpm_unpack(sbpm_pl, &pm->occ.cur, &pm->occ.max); +} + +static int mlxsw_sp_sb_pm_occ_query(struct mlxsw_sp *mlxsw_sp, u8 local_port, + u8 pool, enum mlxsw_reg_sbxx_dir dir, + struct list_head *bulk_list) +{ + char sbpm_pl[MLXSW_REG_SBPM_LEN]; + struct mlxsw_sp_sb_pm *pm; + + pm = mlxsw_sp_sb_pm_get(mlxsw_sp, local_port, pool, dir); + mlxsw_reg_sbpm_pack(sbpm_pl, local_port, pool, dir, false, 0, 0); + return mlxsw_reg_trans_query(mlxsw_sp->core, MLXSW_REG(sbpm), sbpm_pl, + bulk_list, + mlxsw_sp_sb_pm_occ_query_cb, + (unsigned long) pm); +} -static const struct mlxsw_sp_pb mlxsw_sp_pbs[] = { - MLXSW_SP_PB(0, 208), - MLXSW_SP_PB(1, 208), - MLXSW_SP_PB(2, 208), - MLXSW_SP_PB(3, 208), - MLXSW_SP_PB(4, 208), - MLXSW_SP_PB(5, 208), - MLXSW_SP_PB(6, 208), - MLXSW_SP_PB(7, 208), - MLXSW_SP_PB(9, 208), +static const u16 mlxsw_sp_pbs[] = { + [0] = 2 * MLXSW_SP_BYTES_TO_CELLS(ETH_FRAME_LEN), + [9] = 2 * MLXSW_SP_BYTES_TO_CELLS(MLXSW_PORT_MAX_MTU), }; #define MLXSW_SP_PBS_LEN ARRAY_SIZE(mlxsw_sp_pbs) +#define MLXSW_SP_PB_UNUSED 8 static int mlxsw_sp_port_pb_init(struct mlxsw_sp_port *mlxsw_sp_port) { @@ -73,194 +177,206 @@ static int mlxsw_sp_port_pb_init(struct mlxsw_sp_port *mlxsw_sp_port) mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0xffff, 0xffff / 2); for (i = 0; i < MLXSW_SP_PBS_LEN; i++) { - const struct mlxsw_sp_pb *pb; - - pb = &mlxsw_sp_pbs[i]; - mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pb->index, pb->size); + if (i == MLXSW_SP_PB_UNUSED) + continue; + mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, i, mlxsw_sp_pbs[i]); } + mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, + MLXSW_REG_PBMC_PORT_SHARED_BUF_IDX, 0); return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); } -#define MLXSW_SP_SB_BYTES_PER_CELL 96 +static int mlxsw_sp_port_pb_prio_init(struct mlxsw_sp_port *mlxsw_sp_port) +{ + char pptb_pl[MLXSW_REG_PPTB_LEN]; + int i; -struct mlxsw_sp_sb_pool { - u8 pool; - enum mlxsw_reg_sbpr_dir dir; - enum mlxsw_reg_sbpr_mode mode; - u32 size; -}; + mlxsw_reg_pptb_pack(pptb_pl, mlxsw_sp_port->local_port); + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) + mlxsw_reg_pptb_prio_to_buff_pack(pptb_pl, i, 0); + return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pptb), + pptb_pl); +} + +static int mlxsw_sp_port_headroom_init(struct mlxsw_sp_port *mlxsw_sp_port) +{ + int err; + + err = mlxsw_sp_port_pb_init(mlxsw_sp_port); + if (err) + return err; + return mlxsw_sp_port_pb_prio_init(mlxsw_sp_port); +} -#define MLXSW_SP_SB_POOL_INGRESS_SIZE \ - ((15000000 - (2 * 20000 * MLXSW_PORT_MAX_PORTS)) / \ - MLXSW_SP_SB_BYTES_PER_CELL) -#define MLXSW_SP_SB_POOL_EGRESS_SIZE \ - ((14000000 - (8 * 1500 * MLXSW_PORT_MAX_PORTS)) / \ - MLXSW_SP_SB_BYTES_PER_CELL) - -#define MLXSW_SP_SB_POOL(_pool, _dir, _mode, _size) \ - { \ - .pool = _pool, \ - .dir = _dir, \ - .mode = _mode, \ - .size = _size, \ +#define MLXSW_SP_SB_PR_INGRESS_SIZE \ + (15000000 - (2 * 20000 * MLXSW_PORT_MAX_PORTS)) +#define MLXSW_SP_SB_PR_INGRESS_MNG_SIZE (200 * 1000) +#define MLXSW_SP_SB_PR_EGRESS_SIZE \ + (14000000 - (8 * 1500 * MLXSW_PORT_MAX_PORTS)) + +#define MLXSW_SP_SB_PR(_mode, _size) \ + { \ + .mode = _mode, \ + .size = _size, \ } -#define MLXSW_SP_SB_POOL_INGRESS(_pool, _size) \ - MLXSW_SP_SB_POOL(_pool, MLXSW_REG_SBPR_DIR_INGRESS, \ - MLXSW_REG_SBPR_MODE_DYNAMIC, _size) - -#define MLXSW_SP_SB_POOL_EGRESS(_pool, _size) \ - MLXSW_SP_SB_POOL(_pool, MLXSW_REG_SBPR_DIR_EGRESS, \ - MLXSW_REG_SBPR_MODE_DYNAMIC, _size) - -static const struct mlxsw_sp_sb_pool mlxsw_sp_sb_pools[] = { - MLXSW_SP_SB_POOL_INGRESS(0, MLXSW_SP_SB_POOL_INGRESS_SIZE), - MLXSW_SP_SB_POOL_INGRESS(1, 0), - MLXSW_SP_SB_POOL_INGRESS(2, 0), - MLXSW_SP_SB_POOL_INGRESS(3, 0), - MLXSW_SP_SB_POOL_EGRESS(0, MLXSW_SP_SB_POOL_EGRESS_SIZE), - MLXSW_SP_SB_POOL_EGRESS(1, 0), - MLXSW_SP_SB_POOL_EGRESS(2, 0), - MLXSW_SP_SB_POOL_EGRESS(2, MLXSW_SP_SB_POOL_EGRESS_SIZE), +static const struct mlxsw_sp_sb_pr mlxsw_sp_sb_prs_ingress[] = { + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, + MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_INGRESS_SIZE)), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, + MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_INGRESS_MNG_SIZE)), }; -#define MLXSW_SP_SB_POOLS_LEN ARRAY_SIZE(mlxsw_sp_sb_pools) +#define MLXSW_SP_SB_PRS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_prs_ingress) + +static const struct mlxsw_sp_sb_pr mlxsw_sp_sb_prs_egress[] = { + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, + MLXSW_SP_BYTES_TO_CELLS(MLXSW_SP_SB_PR_EGRESS_SIZE)), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0), + MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_DYNAMIC, 0), +}; -static int mlxsw_sp_sb_pools_init(struct mlxsw_sp *mlxsw_sp) +#define MLXSW_SP_SB_PRS_EGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_prs_egress) + +static int __mlxsw_sp_sb_prs_init(struct mlxsw_sp *mlxsw_sp, + enum mlxsw_reg_sbxx_dir dir, + const struct mlxsw_sp_sb_pr *prs, + size_t prs_len) { - char sbpr_pl[MLXSW_REG_SBPR_LEN]; int i; int err; - for (i = 0; i < MLXSW_SP_SB_POOLS_LEN; i++) { - const struct mlxsw_sp_sb_pool *pool; + for (i = 0; i < prs_len; i++) { + const struct mlxsw_sp_sb_pr *pr; - pool = &mlxsw_sp_sb_pools[i]; - mlxsw_reg_sbpr_pack(sbpr_pl, pool->pool, pool->dir, - pool->mode, pool->size); - err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbpr), sbpr_pl); + pr = &prs[i]; + err = mlxsw_sp_sb_pr_write(mlxsw_sp, i, dir, + pr->mode, pr->size); if (err) return err; } return 0; } -struct mlxsw_sp_sb_cm { - union { - u8 pg; - u8 tc; - } u; - enum mlxsw_reg_sbcm_dir dir; - u32 min_buff; - u32 max_buff; - u8 pool; -}; +static int mlxsw_sp_sb_prs_init(struct mlxsw_sp *mlxsw_sp) +{ + int err; -#define MLXSW_SP_SB_CM(_pg_tc, _dir, _min_buff, _max_buff, _pool) \ - { \ - .u.pg = _pg_tc, \ - .dir = _dir, \ - .min_buff = _min_buff, \ - .max_buff = _max_buff, \ - .pool = _pool, \ + err = __mlxsw_sp_sb_prs_init(mlxsw_sp, MLXSW_REG_SBXX_DIR_INGRESS, + mlxsw_sp_sb_prs_ingress, + MLXSW_SP_SB_PRS_INGRESS_LEN); + if (err) + return err; + return __mlxsw_sp_sb_prs_init(mlxsw_sp, MLXSW_REG_SBXX_DIR_EGRESS, + mlxsw_sp_sb_prs_egress, + MLXSW_SP_SB_PRS_EGRESS_LEN); +} + +#define MLXSW_SP_SB_CM(_min_buff, _max_buff, _pool) \ + { \ + .min_buff = _min_buff, \ + .max_buff = _max_buff, \ + .pool = _pool, \ } -#define MLXSW_SP_SB_CM_INGRESS(_pg, _min_buff, _max_buff) \ - MLXSW_SP_SB_CM(_pg, MLXSW_REG_SBCM_DIR_INGRESS, \ - _min_buff, _max_buff, 0) - -#define MLXSW_SP_SB_CM_EGRESS(_tc, _min_buff, _max_buff) \ - MLXSW_SP_SB_CM(_tc, MLXSW_REG_SBCM_DIR_EGRESS, \ - _min_buff, _max_buff, 0) - -#define MLXSW_SP_CPU_PORT_SB_CM_EGRESS(_tc) \ - MLXSW_SP_SB_CM(_tc, MLXSW_REG_SBCM_DIR_EGRESS, 104, 2, 3) - -static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms[] = { - MLXSW_SP_SB_CM_INGRESS(0, 10000 / MLXSW_SP_SB_BYTES_PER_CELL, 8), - MLXSW_SP_SB_CM_INGRESS(1, 0, 0), - MLXSW_SP_SB_CM_INGRESS(2, 0, 0), - MLXSW_SP_SB_CM_INGRESS(3, 0, 0), - MLXSW_SP_SB_CM_INGRESS(4, 0, 0), - MLXSW_SP_SB_CM_INGRESS(5, 0, 0), - MLXSW_SP_SB_CM_INGRESS(6, 0, 0), - MLXSW_SP_SB_CM_INGRESS(7, 0, 0), - MLXSW_SP_SB_CM_INGRESS(9, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff), - MLXSW_SP_SB_CM_EGRESS(0, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(1, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(2, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(3, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(4, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(5, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(6, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(7, 1500 / MLXSW_SP_SB_BYTES_PER_CELL, 9), - MLXSW_SP_SB_CM_EGRESS(8, 0, 0), - MLXSW_SP_SB_CM_EGRESS(9, 0, 0), - MLXSW_SP_SB_CM_EGRESS(10, 0, 0), - MLXSW_SP_SB_CM_EGRESS(11, 0, 0), - MLXSW_SP_SB_CM_EGRESS(12, 0, 0), - MLXSW_SP_SB_CM_EGRESS(13, 0, 0), - MLXSW_SP_SB_CM_EGRESS(14, 0, 0), - MLXSW_SP_SB_CM_EGRESS(15, 0, 0), - MLXSW_SP_SB_CM_EGRESS(16, 1, 0xff), +static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_ingress[] = { + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(10000), 8, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN, 0), + MLXSW_SP_SB_CM(0, 0, 0), /* dummy, this PG does not exist */ + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(20000), 1, 3), }; -#define MLXSW_SP_SB_CMS_LEN ARRAY_SIZE(mlxsw_sp_sb_cms) +#define MLXSW_SP_SB_CMS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_cms_ingress) + +static const struct mlxsw_sp_sb_cm mlxsw_sp_sb_cms_egress[] = { + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(MLXSW_SP_BYTES_TO_CELLS(1500), 9, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(0, 0, 0), + MLXSW_SP_SB_CM(1, 0xff, 0), +}; + +#define MLXSW_SP_SB_CMS_EGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_cms_egress) + +#define MLXSW_SP_CPU_PORT_SB_CM MLXSW_SP_SB_CM(0, 0, 0) static const struct mlxsw_sp_sb_cm mlxsw_sp_cpu_port_sb_cms[] = { - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(0), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(1), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(2), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(3), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(4), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(5), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(6), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(7), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(8), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(9), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(10), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(11), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(12), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(13), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(14), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(15), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(16), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(17), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(18), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(19), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(20), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(21), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(22), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(23), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(24), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(25), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(26), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(27), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(28), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(29), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(30), - MLXSW_SP_CPU_PORT_SB_CM_EGRESS(31), + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, + MLXSW_SP_CPU_PORT_SB_CM, }; #define MLXSW_SP_CPU_PORT_SB_MCS_LEN \ ARRAY_SIZE(mlxsw_sp_cpu_port_sb_cms) -static int mlxsw_sp_sb_cms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port, - const struct mlxsw_sp_sb_cm *cms, - size_t cms_len) +static int __mlxsw_sp_sb_cms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port, + enum mlxsw_reg_sbxx_dir dir, + const struct mlxsw_sp_sb_cm *cms, + size_t cms_len) { - char sbcm_pl[MLXSW_REG_SBCM_LEN]; int i; int err; for (i = 0; i < cms_len; i++) { const struct mlxsw_sp_sb_cm *cm; + if (i == 8 && dir == MLXSW_REG_SBXX_DIR_INGRESS) + continue; /* PG number 8 does not exist, skip it */ cm = &cms[i]; - mlxsw_reg_sbcm_pack(sbcm_pl, local_port, cm->u.pg, cm->dir, - cm->min_buff, cm->max_buff, cm->pool); - err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbcm), sbcm_pl); + err = mlxsw_sp_sb_cm_write(mlxsw_sp, local_port, i, dir, + cm->min_buff, cm->max_buff, + cm->pool); if (err) return err; } @@ -269,105 +385,120 @@ static int mlxsw_sp_sb_cms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port, static int mlxsw_sp_port_sb_cms_init(struct mlxsw_sp_port *mlxsw_sp_port) { - return mlxsw_sp_sb_cms_init(mlxsw_sp_port->mlxsw_sp, - mlxsw_sp_port->local_port, mlxsw_sp_sb_cms, - MLXSW_SP_SB_CMS_LEN); + 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_sp_cpu_port_sb_cms, - MLXSW_SP_CPU_PORT_SB_MCS_LEN); + 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); } -struct mlxsw_sp_sb_pm { - u8 pool; - enum mlxsw_reg_sbpm_dir dir; - u32 min_buff; - u32 max_buff; +#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_PM(_pool, _dir, _min_buff, _max_buff) \ - { \ - .pool = _pool, \ - .dir = _dir, \ - .min_buff = _min_buff, \ - .max_buff = _max_buff, \ - } +#define MLXSW_SP_SB_PMS_INGRESS_LEN ARRAY_SIZE(mlxsw_sp_sb_pms_ingress) -#define MLXSW_SP_SB_PM_INGRESS(_pool, _min_buff, _max_buff) \ - MLXSW_SP_SB_PM(_pool, MLXSW_REG_SBPM_DIR_INGRESS, \ - _min_buff, _max_buff) - -#define MLXSW_SP_SB_PM_EGRESS(_pool, _min_buff, _max_buff) \ - MLXSW_SP_SB_PM(_pool, MLXSW_REG_SBPM_DIR_EGRESS, \ - _min_buff, _max_buff) - -static const struct mlxsw_sp_sb_pm mlxsw_sp_sb_pms[] = { - MLXSW_SP_SB_PM_INGRESS(0, 0, 0xff), - MLXSW_SP_SB_PM_INGRESS(1, 0, 0), - MLXSW_SP_SB_PM_INGRESS(2, 0, 0), - MLXSW_SP_SB_PM_INGRESS(3, 0, 0), - MLXSW_SP_SB_PM_EGRESS(0, 0, 7), - MLXSW_SP_SB_PM_EGRESS(1, 0, 0), - MLXSW_SP_SB_PM_EGRESS(2, 0, 0), - MLXSW_SP_SB_PM_EGRESS(3, 0, 0), +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_LEN ARRAY_SIZE(mlxsw_sp_sb_pms) +#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_port *mlxsw_sp_port) +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) { - char sbpm_pl[MLXSW_REG_SBPM_LEN]; int i; int err; - for (i = 0; i < MLXSW_SP_SB_PMS_LEN; i++) { + for (i = 0; i < pms_len; i++) { const struct mlxsw_sp_sb_pm *pm; - pm = &mlxsw_sp_sb_pms[i]; - mlxsw_reg_sbpm_pack(sbpm_pl, mlxsw_sp_port->local_port, - pm->pool, pm->dir, - pm->min_buff, pm->max_buff); - err = mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, - MLXSW_REG(sbpm), sbpm_pl); + 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 { - u8 prio; u32 min_buff; u32 max_buff; u8 pool; }; -#define MLXSW_SP_SB_MM(_prio, _min_buff, _max_buff, _pool) \ - { \ - .prio = _prio, \ - .min_buff = _min_buff, \ - .max_buff = _max_buff, \ - .pool = _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(0, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(1, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(2, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(3, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(4, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(5, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(6, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(7, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(8, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(9, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(10, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(11, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(12, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(13, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 0xff, 0), - MLXSW_SP_SB_MM(14, 20000 / MLXSW_SP_SB_BYTES_PER_CELL, 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), + MLXSW_SP_SB_MM(MLXSW_SP_BYTES_TO_CELLS(20000), 0xff, 0), }; #define MLXSW_SP_SB_MMS_LEN ARRAY_SIZE(mlxsw_sp_sb_mms) @@ -382,7 +513,7 @@ static int mlxsw_sp_sb_mms_init(struct mlxsw_sp *mlxsw_sp) const struct mlxsw_sp_sb_mm *mc; mc = &mlxsw_sp_sb_mms[i]; - mlxsw_reg_sbmm_pack(sbmm_pl, mc->prio, mc->min_buff, + 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) @@ -391,26 +522,39 @@ static int mlxsw_sp_sb_mms_init(struct mlxsw_sp *mlxsw_sp) 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_pools_init(mlxsw_sp); + 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); +} - return err; +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_pb_init(mlxsw_sp_port); + err = mlxsw_sp_port_headroom_init(mlxsw_sp_port); if (err) return err; err = mlxsw_sp_port_sb_cms_init(mlxsw_sp_port); @@ -420,3 +564,394 @@ int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *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 = dir; + pool_info->size = MLXSW_SP_CELLS_TO_BYTES(pr->size); + pool_info->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); + enum mlxsw_reg_sbpr_mode mode = threshold_type; + u32 pool_size = MLXSW_SP_BYTES_TO_CELLS(size); + + 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 = 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, pool_type); + 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 = pool_type; + u8 pool = pool_index; + u32 max_buff; + int err; + + err = mlxsw_sp_sb_threshold_in(mlxsw_sp, pool, dir, + threshold, &max_buff); + if (err) + return err; + + if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS) { + if (pool < MLXSW_SP_SB_POOL_COUNT) + return -EINVAL; + pool -= MLXSW_SP_SB_POOL_COUNT; + } else if (pool >= MLXSW_SP_SB_POOL_COUNT) { + return -EINVAL; + } + 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 = 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; +} -- cgit v1.2.3-54-g00ecf