From 03ffbc9914bd1130fba464f0a41c01372e5fc359 Mon Sep 17 00:00:00 2001 From: Geetha sowjanya Date: Fri, 21 Jan 2022 12:04:41 +0530 Subject: [PATCH] octeontx2-af: Retry until RVU block reset complete Few RVU blocks like SSO require more time for reset on some silicons. Hence retrying the block reset until success. Fixes: c0fa2cff8822c ("octeontx2-af: Handle return value in block reset") Signed-off-by: Geetha sowjanya Signed-off-by: Subbaraya Sundeep Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c index 3ca6b942ebe2..54e1b27a7dfe 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -520,8 +520,11 @@ static void rvu_block_reset(struct rvu *rvu, int blkaddr, u64 rst_reg) rvu_write64(rvu, blkaddr, rst_reg, BIT_ULL(0)); err = rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true); - if (err) - dev_err(rvu->dev, "HW block:%d reset failed\n", blkaddr); + if (err) { + dev_err(rvu->dev, "HW block:%d reset timeout retrying again\n", blkaddr); + while (rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true) == -EBUSY) + ; + } } static void rvu_reset_all_blocks(struct rvu *rvu) -- 2.34.1