diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c | 82 |
1 files changed, 81 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c index 21b5d71c1e37..1e6fbd98423d 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c @@ -5,7 +5,7 @@ * */ -#include<linux/bitfield.h> +#include <linux/bitfield.h> #include "rvu.h" #include "rvu_reg.h" @@ -1237,6 +1237,7 @@ enum rvu_af_dl_param_id { RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, RVU_AF_DEVLINK_PARAM_ID_NPC_MCAM_ZONE_PERCENT, + RVU_AF_DEVLINK_PARAM_ID_NIX_MAXLF, }; static int rvu_af_npc_exact_feature_get(struct devlink *devlink, u32 id, @@ -1354,6 +1355,79 @@ static int rvu_af_dl_npc_mcam_high_zone_percent_validate(struct devlink *devlink return 0; } +static int rvu_af_dl_nix_maxlf_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + + ctx->val.vu16 = (u16)rvu_get_nixlf_count(rvu); + + return 0; +} + +static int rvu_af_dl_nix_maxlf_set(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + struct rvu_block *block; + int blkaddr = 0; + + npc_mcam_rsrcs_deinit(rvu); + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + block = &rvu->hw->block[blkaddr]; + block->lf.max = ctx->val.vu16; + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + npc_mcam_rsrcs_init(rvu, blkaddr); + + return 0; +} + +static int rvu_af_dl_nix_maxlf_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + u16 max_nix0_lf, max_nix1_lf; + struct npc_mcam *mcam; + u64 cfg; + + cfg = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_CONST2); + max_nix0_lf = cfg & 0xFFF; + cfg = rvu_read64(rvu, BLKADDR_NIX1, NIX_AF_CONST2); + max_nix1_lf = cfg & 0xFFF; + + /* Do not allow user to modify maximum NIX LFs while mcam entries + * have already been assigned. + */ + mcam = &rvu->hw->mcam; + if (mcam->bmap_fcnt < mcam->bmap_entries) { + NL_SET_ERR_MSG_MOD(extack, + "mcam entries have already been assigned, can't resize"); + return -EPERM; + } + + if (max_nix0_lf && val.vu16 > max_nix0_lf) { + NL_SET_ERR_MSG_MOD(extack, + "requested nixlf is greater than the max supported nix0_lf"); + return -EPERM; + } + + if (max_nix1_lf && val.vu16 > max_nix1_lf) { + NL_SET_ERR_MSG_MOD(extack, + "requested nixlf is greater than the max supported nix1_lf"); + return -EINVAL; + } + + return 0; +} + static const struct devlink_param rvu_af_dl_params[] = { DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, "dwrr_mtu", DEVLINK_PARAM_TYPE_U32, @@ -1375,6 +1449,12 @@ static const struct devlink_param rvu_af_dl_param_exact_match[] = { rvu_af_dl_npc_mcam_high_zone_percent_get, rvu_af_dl_npc_mcam_high_zone_percent_set, rvu_af_dl_npc_mcam_high_zone_percent_validate), + DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_NIX_MAXLF, + "nix_maxlf", DEVLINK_PARAM_TYPE_U16, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + rvu_af_dl_nix_maxlf_get, + rvu_af_dl_nix_maxlf_set, + rvu_af_dl_nix_maxlf_validate), }; /* Devlink switch mode */ |