diff options
| author | Yunsheng Lin <linyunsheng@huawei.com> | 2021-06-16 14:36:11 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-16 00:36:06 -0700 |
| commit | 26f1ccdf609a9fb087f49a3782fdc2ade23cde82 (patch) | |
| tree | 254d0d3bf366646cb139b79309bb68379f42ded3 /drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | |
| parent | a078d981f8632f7a919094c000b061593287e056 (diff) | |
net: hns3: minor refactor related to desc_cb handling
desc_cb is used to store mapping and freeing info for the
corresponding desc, which is used in the cleaning process.
There will be more desc_cb type coming up when supporting the
tx bounce buffer, change desc_cb type to bit-wise value in order
to reduce the desc_cb type checking operation in the data path.
Also move the desc_cb type definition to hns3_enet.h because it
is only used in hns3_enet.c, and declare a local variable desc_cb
in hns3_clear_desc() to reduce lines of code.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3_enet.h')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index 79821c7bdc16..9d18b9430b54 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -299,6 +299,13 @@ struct __packed hns3_desc { }; }; +enum hns3_desc_type { + DESC_TYPE_UNKNOWN = 0, + DESC_TYPE_SKB = 1 << 0, + DESC_TYPE_FRAGLIST_SKB = 1 << 1, + DESC_TYPE_PAGE = 1 << 2, +}; + struct hns3_desc_cb { dma_addr_t dma; /* dma address of this desc */ void *buf; /* cpu addr for a desc */ |