From e247db4fadc4e00b6f61f28f4df012bcb3b083c1 Mon Sep 17 00:00:00 2001 From: Prabhakar Kushwaha Date: Thu, 2 Jul 2015 11:28:57 +0530 Subject: [PATCH] driver/ldpaa_eth:Flush buffer before seeding BMAN after TX_conf Flush buffer before releasing to BMan after TX_conf to ensure, the core does not have any cachelines that the WRIOP will DMA to. Signed-off-by: Prabhakar Kushwaha Reviewed-by: York Sun --- drivers/net/ldpaa_eth/ldpaa_eth.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.c b/drivers/net/ldpaa_eth/ldpaa_eth.c index d4be1ba..5636511 100644 --- a/drivers/net/ldpaa_eth/ldpaa_eth.c +++ b/drivers/net/ldpaa_eth/ldpaa_eth.c @@ -153,6 +153,7 @@ static void ldpaa_eth_tx_conf(struct ldpaa_eth_priv *priv, } } + flush_dcache_range(fd_addr, fd_addr + LDPAA_ETH_RX_BUFFER_SIZE); qbman_release_desc_clear(&releasedesc); qbman_release_desc_set_bpid(&releasedesc, dflt_dpbp->dpbp_attr.bpid); do {