From 074ac38d5b955a6b2241c2b483470501f318a6f1 Mon Sep 17 00:00:00 2001 From: Pavan Nikhilesh Date: Tue, 5 Dec 2023 11:22:41 +0530 Subject: [PATCH] octeontx2-af: cn10k: Increase outstanding LMTST transactions Currently the number of outstanding store transactions issued by AP as a part of LMTST operation is set to 1 i.e default value. This patch set to max supported value to increase the performance. Signed-off-by: Pavan Nikhilesh Signed-off-by: Geetha sowjanya Link: https://lore.kernel.org/r/20231205055241.26355-1-gakula@marvell.com Signed-off-by: Paolo Abeni --- drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 3 +++ drivers/net/ethernet/marvell/octeontx2/af/rvu.h | 1 + drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c | 9 +++++++++ drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h | 2 ++ 4 files changed, 15 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index 7cd98f013fdea..c1e868a2610e6 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -935,6 +935,9 @@ static int rvu_setup_hw_resources(struct rvu *rvu) hw->total_vfs = (cfg >> 20) & 0xFFF; hw->max_vfs_per_pf = (cfg >> 40) & 0xFF; + if (!is_rvu_otx2(rvu)) + rvu_apr_block_cn10k_init(rvu); + /* Init NPA LF's bitmap */ block = &hw->block[BLKADDR_NPA]; if (!block->implemented) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index a3de437f309eb..814945aa619e2 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -969,6 +969,7 @@ void rvu_nix_block_cn10k_init(struct rvu *rvu, struct nix_hw *nix_hw); /* CN10K RVU - LMT*/ void rvu_reset_lmt_map_tbl(struct rvu *rvu, u16 pcifunc); +void rvu_apr_block_cn10k_init(struct rvu *rvu); #ifdef CONFIG_DEBUG_FS void rvu_dbg_init(struct rvu *rvu); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c index 0e74c5a2231e6..7fa98aeb3663c 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -559,3 +559,12 @@ void rvu_nix_block_cn10k_init(struct rvu *rvu, struct nix_hw *nix_hw) cfg |= BIT_ULL(1) | BIT_ULL(2); rvu_write64(rvu, blkaddr, NIX_AF_CFG, cfg); } + +void rvu_apr_block_cn10k_init(struct rvu *rvu) +{ + u64 reg; + + reg = rvu_read64(rvu, BLKADDR_APR, APR_AF_LMT_CFG); + reg |= FIELD_PREP(LMTST_THROTTLE_MASK, LMTST_WR_PEND_MAX); + rvu_write64(rvu, BLKADDR_APR, APR_AF_LMT_CFG, reg); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h index b42e631e52d0f..189f0eafd5fff 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -733,5 +733,7 @@ #define APR_LMT_MAP_ENT_DIS_SCH_CMP_SHIFT 23 #define APR_LMT_MAP_ENT_SCH_ENA_SHIFT 22 #define APR_LMT_MAP_ENT_DIS_LINE_PREF_SHIFT 21 +#define LMTST_THROTTLE_MASK GENMASK_ULL(38, 35) +#define LMTST_WR_PEND_MAX 15 #endif /* RVU_REG_H */ -- 2.30.2