netdev - [net PATCH 10/10] octeontx2-af: cn10k: Use FLIT0 register instead of FLIT1

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Date:   Sun, 22 Aug 2021 17:32:27 +0530
From:   Sunil Goutham <sgoutham@...vell.com>
To:     <netdev@...r.kernel.org>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     Geetha sowjanya <gakula@...vell.com>,
        Sunil Goutham <sgoutham@...vell.com>
Subject: [net PATCH 10/10] octeontx2-af: cn10k: Use FLIT0 register instead of FLIT1

From: Geetha sowjanya <gakula@...vell.com>

RVU SMMU widget stores the final translated PA at
RVU_AF_SMMU_TLN_FLIT0<57:18> instead of FLIT1 register. This patch
fixes the address translation logic to use the correct register.

Fixes: 893ae97214c3 ("octeontx2-af: cn10k: Support configurable LMTST regions")
Signed-off-by: Geetha sowjanya <gakula@...vell.com>
Signed-off-by: Sunil Goutham <sgoutham@...vell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c | 4 ++--
 drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h   | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c
index 28dcce7..dbe9149 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c
@@ -82,10 +82,10 @@ static int rvu_get_lmtaddr(struct rvu *rvu, u16 pcifunc,
 		dev_err(rvu->dev, "%s LMTLINE iova transulation failed err:%llx\n", __func__, val);
 		return -EIO;
 	}
-	/* PA[51:12] = RVU_AF_SMMU_TLN_FLIT1[60:21]
+	/* PA[51:12] = RVU_AF_SMMU_TLN_FLIT0[57:18]
 	 * PA[11:0] = IOVA[11:0]
 	 */
-	pa = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_TLN_FLIT1) >> 21;
+	pa = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_TLN_FLIT0) >> 18;
 	pa &= GENMASK_ULL(39, 0);
 	*lmt_addr = (pa << 12) | (iova  & 0xFFF);
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
index 8b01ef6..4215841 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
@@ -53,7 +53,7 @@
 #define RVU_AF_SMMU_TXN_REQ		    (0x6008)
 #define RVU_AF_SMMU_ADDR_RSP_STS	    (0x6010)
 #define RVU_AF_SMMU_ADDR_TLN		    (0x6018)
-#define RVU_AF_SMMU_TLN_FLIT1		    (0x6030)
+#define RVU_AF_SMMU_TLN_FLIT0		    (0x6020)
 
 /* Admin function's privileged PF/VF registers */
 #define RVU_PRIV_CONST                      (0x8000000)
-- 
2.7.4