From: Subbaraya Sundeep <sbhatta@marvell.com>
To: <davem@davemloft.net>, <kuba@kernel.org>,
<netdev@vger.kernel.org>, <sundeep.lkml@gmail.com>
Cc: <hkelam@marvell.com>, <gakula@marvell.com>,
<sgoutham@marvell.com>, Subbaraya Sundeep <sbhatta@marvell.com>
Subject: [net PATCH 3/9] octeontx2-af: Retry until RVU block reset complete
Date: Fri, 21 Jan 2022 12:04:41 +0530 [thread overview]
Message-ID: <1642746887-30924-4-git-send-email-sbhatta@marvell.com> (raw)
In-Reply-To: <1642746887-30924-1-git-send-email-sbhatta@marvell.com>
From: Geetha sowjanya <gakula@marvell.com>
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 <gakula@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
---
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 3ca6b94..54e1b27 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)
--
2.7.4
next prev parent reply other threads:[~2022-01-21 6:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-21 6:34 [net PATCH 0/9] Fixes for CN10K and CN9xxx platforms Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 1/9] octeontx2-af: Do not fixup all VF action entries Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 2/9] octeontx2-af: Fix LBK backpressure id count Subbaraya Sundeep
2022-01-21 6:34 ` Subbaraya Sundeep [this message]
2022-01-21 6:34 ` [net PATCH 4/9] octeontx2-af: cn10k: Use appropriate register for LMAC enable Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 5/9] octeontx2-pf: cn10k: Ensure valid pointers are freed to aura Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 6/9] octeontx2-af: Increase link credit restore polling timeout Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 7/9] octeontx2-af: cn10k: Do not enable RPM loopback for LPC interfaces Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 8/9] octeontx2-pf: Forward error codes to VF Subbaraya Sundeep
2022-01-21 6:34 ` [net PATCH 9/9] octeontx2-af: Add KPU changes to parse NGIO as separate layer Subbaraya Sundeep
2022-01-27 13:32 ` [net PATCH 0/9] Fixes for CN10K and CN9xxx platforms sundeep subbaraya
2022-01-27 15:24 ` Jakub Kicinski
2022-01-28 3:58 ` sundeep subbaraya
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