提交 7d0b130c 编写于 作者: F Fuyun Liang 提交者: David S. Miller

net: hns3: Fixes the init of the VALID BD info in the descriptor

RX Buffer Descriptor contains a VALID bit which indicates if the BD
is valid and has some data. This field is set by HNS3 hardware to
intimate the driver of some valid data present in the BD. nd should
be reset by the driver when BD is being used again. In the existing
code this bit was not being (re-)initialized properly and hence was
causing problems.

Fixes: 76ad4f0e ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: NFuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 90b99b09
......@@ -1819,6 +1819,7 @@ static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
hns3_unmap_buffer(ring, &ring->desc_cb[i]);
ring->desc_cb[i] = *res_cb;
ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
ring->desc[i].rx.bd_base_info = 0;
}
static void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i)
......@@ -1826,6 +1827,7 @@ static void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i)
ring->desc_cb[i].reuse_flag = 0;
ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma
+ ring->desc_cb[i].page_offset);
ring->desc[i].rx.bd_base_info = 0;
}
static void hns3_nic_reclaim_one_desc(struct hns3_enet_ring *ring, int *bytes,
......
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