From e247db4fadc4e00b6f61f28f4df012bcb3b083c1 Mon Sep 17 00:00:00 2001
From: Prabhakar Kushwaha <prabhakar@freescale.com>
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 <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
---
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 d4be1bada9..5636511a4f 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 {
--
2.39.5