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| author | Yunsheng Lin <linyunsheng@huawei.com> | 2018-09-25 11:21:55 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-25 19:42:20 +0200 |
| commit | 2e9361efa707e186d91b938e44f9e326725259f7 (patch) | |
| tree | e7685fa03f226067c362105afdb5cf3f468121ff /net | |
| parent | Merge branch 'xen-netback-hash' (diff) | |
| download | linux-2e9361efa707e186d91b938e44f9e326725259f7.tar.xz linux-2e9361efa707e186d91b938e44f9e326725259f7.zip | |
net: hns: fix for unmapping problem when SMMU is on
If SMMU is on, there is more likely that skb_shinfo(skb)->frags[i]
can not send by a single BD. when this happen, the
hns_nic_net_xmit_hw function map the whole data in a frags using
skb_frag_dma_map, but unmap each BD' data individually when tx is
done, which causes problem when SMMU is on.
This patch fixes this problem by ummapping the whole data in a
frags when tx is done.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions