Commit 074ac38d authored by Pavan Nikhilesh's avatar Pavan Nikhilesh Committed by Paolo Abeni
Browse files

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: default avatarPavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: default avatarGeetha sowjanya <gakula@marvell.com>
Link: https://lore.kernel.org/r/20231205055241.26355-1-gakula@marvell.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 021b0c95

drivers/net/ethernet/marvell/octeontx2/af/rvu.c

+3 −0
Original line number Diff line number Diff line
@@ -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)

drivers/net/ethernet/marvell/octeontx2/af/rvu.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c

+9 −0
Original line number Diff line number Diff line
@@ -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);

}

drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */