1
2
3
4#ifndef I40E_TXRX_COMMON_
5#define I40E_TXRX_COMMON_
6
7int i40e_xmit_xdp_tx_ring(struct xdp_buff *xdp, struct i40e_ring *xdp_ring);
8void i40e_clean_programming_status(struct i40e_ring *rx_ring, u64 qword0_raw,
9 u64 qword1);
10void i40e_process_skb_fields(struct i40e_ring *rx_ring,
11 union i40e_rx_desc *rx_desc, struct sk_buff *skb);
12void i40e_xdp_ring_update_tail(struct i40e_ring *xdp_ring);
13void i40e_update_rx_stats(struct i40e_ring *rx_ring,
14 unsigned int total_rx_bytes,
15 unsigned int total_rx_packets);
16void i40e_finalize_xdp_rx(struct i40e_ring *rx_ring, unsigned int xdp_res);
17void i40e_release_rx_desc(struct i40e_ring *rx_ring, u32 val);
18
19#define I40E_XDP_PASS 0
20#define I40E_XDP_CONSUMED BIT(0)
21#define I40E_XDP_TX BIT(1)
22#define I40E_XDP_REDIR BIT(2)
23
24
25
26
27static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
28 u32 td_tag)
29{
30 return cpu_to_le64(I40E_TX_DESC_DTYPE_DATA |
31 ((u64)td_cmd << I40E_TXD_QW1_CMD_SHIFT) |
32 ((u64)td_offset << I40E_TXD_QW1_OFFSET_SHIFT) |
33 ((u64)size << I40E_TXD_QW1_TX_BUF_SZ_SHIFT) |
34 ((u64)td_tag << I40E_TXD_QW1_L2TAG1_SHIFT));
35}
36
37
38
39
40
41
42
43static inline void i40e_update_tx_stats(struct i40e_ring *tx_ring,
44 unsigned int total_packets,
45 unsigned int total_bytes)
46{
47 u64_stats_update_begin(&tx_ring->syncp);
48 tx_ring->stats.bytes += total_bytes;
49 tx_ring->stats.packets += total_packets;
50 u64_stats_update_end(&tx_ring->syncp);
51 tx_ring->q_vector->tx.total_bytes += total_bytes;
52 tx_ring->q_vector->tx.total_packets += total_packets;
53}
54
55#define WB_STRIDE 4
56
57
58
59
60
61
62
63static inline void i40e_arm_wb(struct i40e_ring *tx_ring,
64 struct i40e_vsi *vsi,
65 int budget)
66{
67 if (tx_ring->flags & I40E_TXR_FLAGS_WB_ON_ITR) {
68
69
70
71
72
73 unsigned int j = i40e_get_tx_pending(tx_ring, false);
74
75 if (budget &&
76 ((j / WB_STRIDE) == 0) && j > 0 &&
77 !test_bit(__I40E_VSI_DOWN, vsi->state) &&
78 (I40E_DESC_UNUSED(tx_ring) != tx_ring->count))
79 tx_ring->arm_wb = true;
80 }
81}
82
83
84
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87
88
89
90
91
92static inline bool i40e_rx_is_programming_status(u64 qword1)
93{
94
95
96
97
98
99 return qword1 & I40E_RXD_QW1_LENGTH_SPH_MASK;
100}
101
102void i40e_xsk_clean_rx_ring(struct i40e_ring *rx_ring);
103void i40e_xsk_clean_tx_ring(struct i40e_ring *tx_ring);
104bool i40e_xsk_any_rx_ring_enabled(struct i40e_vsi *vsi);
105
106#endif
107