The Keystone II DMA hardware can only access addresses in the
lower 2 GiB of SDRAM. This patch makes sure the RX buffers are
allocated using the __GFP_DMA flag so they meet this requirement.
Signed-off-by: WingMan Kwok <w-kw...@ti.com>
Signed-off-by: Reece R. Pollack <x0183...@ti.com>
---
drivers/net/ethernet/ti/netcp_core.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/ti/netcp_core.c
b/drivers/net/ethernet/ti/netcp_core.c
index 2d07701..39c68df 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -820,11 +820,13 @@ static void netcp_allocate_rx_buf(struct netcp_intf
*netcp, int fdq)
SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
if (primary_buf_len <= PAGE_SIZE) {
- bufptr = netdev_alloc_frag(primary_buf_len);
+ bufptr = __netdev_alloc_frag(primary_buf_len,
+ GFP_ATOMIC | __GFP_COLD |
+ __GFP_DMA);
pad[1] = primary_buf_len;
} else {
bufptr = kmalloc(primary_buf_len, GFP_ATOMIC |
- GFP_DMA32 | __GFP_COLD);
+ __GFP_COLD | __GFP_DMA);
pad[1] = 0;
}
@@ -838,9 +840,10 @@ static void netcp_allocate_rx_buf(struct netcp_intf
*netcp, int fdq)
} else {
/* Allocate a secondary receive queue entry */
- page = alloc_page(GFP_ATOMIC | GFP_DMA32 | __GFP_COLD);
+ page = alloc_page(GFP_ATOMIC | __GFP_COLD | __GFP_DMA);
if (unlikely(!page)) {
- dev_warn_ratelimited(netcp->ndev_dev, "Secondary page
alloc failed\n");
+ dev_warn_ratelimited(netcp->ndev_dev,
+ "Secondary page alloc failed\n");
goto fail;
}
buf_len = PAGE_SIZE;
--
1.7.9.5
--
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