From e62a3f4183f14a91f0dd63e9ea39e749406b5653 Mon Sep 17 00:00:00 2001 From: Nipun Gupta Date: Wed, 24 Feb 2021 18:12:50 +0530 Subject: [PATCH] bus/dpaa: fix statistics reading Reading of word un-aligned values after reading word aligned values lead to corruption of memory. This patch make changes such that word aligned access is made, before making an un-aligned access Fixes: 6d6b4f49a155 ("bus/dpaa: add FMAN hardware operations") Cc: stable@dpdk.org Signed-off-by: Nipun Gupta Acked-by: Hemant Agrawal --- drivers/bus/dpaa/base/fman/fman_hw.c | 33 ++++++++++++++-------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/bus/dpaa/base/fman/fman_hw.c b/drivers/bus/dpaa/base/fman/fman_hw.c index 4ab49f7853..af9bac76c2 100644 --- a/drivers/bus/dpaa/base/fman/fman_hw.c +++ b/drivers/bus/dpaa/base/fman/fman_hw.c @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: BSD-3-Clause * - * Copyright 2017 NXP + * Copyright 2017,2020 NXP * */ @@ -219,20 +219,20 @@ fman_if_stats_get(struct fman_if *p, struct rte_eth_stats *stats) struct memac_regs *regs = m->ccsr_map; /* read recved packet count */ - stats->ipackets = ((u64)in_be32(®s->rfrm_u)) << 32 | - in_be32(®s->rfrm_l); - stats->ibytes = ((u64)in_be32(®s->roct_u)) << 32 | - in_be32(®s->roct_l); - stats->ierrors = ((u64)in_be32(®s->rerr_u)) << 32 | - in_be32(®s->rerr_l); + stats->ipackets = (u64)in_be32(®s->rfrm_l) | + ((u64)in_be32(®s->rfrm_u)) << 32; + stats->ibytes = (u64)in_be32(®s->roct_l) | + ((u64)in_be32(®s->roct_u)) << 32; + stats->ierrors = (u64)in_be32(®s->rerr_l) | + ((u64)in_be32(®s->rerr_u)) << 32; /* read xmited packet count */ - stats->opackets = ((u64)in_be32(®s->tfrm_u)) << 32 | - in_be32(®s->tfrm_l); - stats->obytes = ((u64)in_be32(®s->toct_u)) << 32 | - in_be32(®s->toct_l); - stats->oerrors = ((u64)in_be32(®s->terr_u)) << 32 | - in_be32(®s->terr_l); + stats->opackets = (u64)in_be32(®s->tfrm_l) | + ((u64)in_be32(®s->tfrm_u)) << 32; + stats->obytes = (u64)in_be32(®s->toct_l) | + ((u64)in_be32(®s->toct_u)) << 32; + stats->oerrors = (u64)in_be32(®s->terr_l) | + ((u64)in_be32(®s->terr_u)) << 32; } void @@ -244,10 +244,9 @@ fman_if_stats_get_all(struct fman_if *p, uint64_t *value, int n) uint64_t base_offset = offsetof(struct memac_regs, reoct_l); for (i = 0; i < n; i++) - value[i] = ((u64)in_be32((char *)regs - + base_offset + 8 * i + 4)) << 32 | - ((u64)in_be32((char *)regs - + base_offset + 8 * i)); + value[i] = (((u64)in_be32((char *)regs + base_offset + 8 * i) | + (u64)in_be32((char *)regs + base_offset + + 8 * i + 4)) << 32); } void -- 2.20.1