1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019, Intel Corporation. */
4 #ifndef _ICE_TXRX_LIB_H_
5 #define _ICE_TXRX_LIB_H_
9 * ice_test_staterr - tests bits in Rx descriptor status and error fields
10 * @rx_desc: pointer to receive descriptor (in le64 format)
11 * @stat_err_bits: value to mask
13 * This function does some fast chicanery in order to return the
14 * value of the mask which is really only used for boolean tests.
15 * The status_error_len doesn't need to be shifted because it begins
19 ice_test_staterr(union ice_32b_rx_flex_desc
*rx_desc
, const u16 stat_err_bits
)
21 return !!(rx_desc
->wb
.status_error0
& cpu_to_le16(stat_err_bits
));
25 ice_build_ctob(u64 td_cmd
, u64 td_offset
, unsigned int size
, u64 td_tag
)
27 return cpu_to_le64(ICE_TX_DESC_DTYPE_DATA
|
28 (td_cmd
<< ICE_TXD_QW1_CMD_S
) |
29 (td_offset
<< ICE_TXD_QW1_OFFSET_S
) |
30 ((u64
)size
<< ICE_TXD_QW1_TX_BUF_SZ_S
) |
31 (td_tag
<< ICE_TXD_QW1_L2TAG1_S
));
35 * ice_xdp_ring_update_tail - Updates the XDP Tx ring tail register
36 * @xdp_ring: XDP Tx ring
38 * This function updates the XDP Tx ring tail register.
40 static inline void ice_xdp_ring_update_tail(struct ice_ring
*xdp_ring
)
42 /* Force memory writes to complete before letting h/w
43 * know there are new descriptors to fetch.
46 writel_relaxed(xdp_ring
->next_to_use
, xdp_ring
->tail
);
49 void ice_finalize_xdp_rx(struct ice_ring
*rx_ring
, unsigned int xdp_res
);
50 int ice_xmit_xdp_buff(struct xdp_buff
*xdp
, struct ice_ring
*xdp_ring
);
51 int ice_xmit_xdp_ring(void *data
, u16 size
, struct ice_ring
*xdp_ring
);
52 void ice_release_rx_desc(struct ice_ring
*rx_ring
, u16 val
);
54 ice_process_skb_fields(struct ice_ring
*rx_ring
,
55 union ice_32b_rx_flex_desc
*rx_desc
,
56 struct sk_buff
*skb
, u8 ptype
);
58 ice_receive_skb(struct ice_ring
*rx_ring
, struct sk_buff
*skb
, u16 vlan_tag
);
59 #endif /* !_ICE_TXRX_LIB_H_ */