1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2015 - 2016 CESNET
3  */
4 
5 #ifndef RTE_PMD_SZEDATA2_H_
6 #define RTE_PMD_SZEDATA2_H_
7 
8 #include <stdint.h>
9 
10 #include <libsze2.h>
11 
12 #include <rte_common.h>
13 
14 /* PCI Vendor ID */
15 #define PCI_VENDOR_ID_NETCOPE 0x1b26
16 #define PCI_VENDOR_ID_SILICOM 0x1c2c
17 
18 /* PCI Device IDs */
19 #define PCI_DEVICE_ID_NETCOPE_COMBO80G 0xcb80
20 #define PCI_DEVICE_ID_NETCOPE_COMBO100G 0xc1c1
21 #define PCI_DEVICE_ID_NETCOPE_COMBO100G2 0xc2c1
22 #define PCI_DEVICE_ID_NETCOPE_NFB200G2QL 0xc250
23 #define PCI_DEVICE_ID_FB2CGG3 0x00d0
24 #define PCI_DEVICE_ID_FB2CGG3D 0xc240
25 
26 /* szedata2_packet header length == 4 bytes == 2B segment size + 2B hw size */
27 #define RTE_SZE2_PACKET_HEADER_SIZE 4
28 
29 #define RTE_SZE2_MMIO_MAX 10
30 
31 /*!
32  * Round 'what' to the nearest larger (or equal) multiple of '8'
33  * (szedata2 packet is aligned to 8 bytes)
34  */
35 #define RTE_SZE2_ALIGN8(what) RTE_ALIGN(what, 8)
36 
37 /*! main handle structure */
38 struct szedata {
39 	int fd;
40 	struct sze2_instance_info *info;
41 	uint32_t *write_size;
42 	void *space[RTE_SZE2_MMIO_MAX];
43 	struct szedata_lock lock[2][2];
44 
45 	__u32 *rx_asize, *tx_asize;
46 
47 	/* szedata_read_next variables - to keep context (ct) */
48 
49 	/*
50 	 * rx
51 	 */
52 	/** initial sze lock ptr */
53 	const struct szedata_lock   *ct_rx_lck_orig;
54 	/** current sze lock ptr (initial or next) */
55 	const struct szedata_lock   *ct_rx_lck;
56 	/** remaining bytes (not read) within current lock */
57 	unsigned int                ct_rx_rem_bytes;
58 	/** current pointer to locked memory */
59 	unsigned char               *ct_rx_cur_ptr;
60 	/**
61 	 * allocated buffer to store RX packet if it was split
62 	 * into 2 buffers
63 	 */
64 	unsigned char               *ct_rx_buffer;
65 	/** registered function to provide filtering based on hwdata */
66 	int (*ct_rx_filter)(u_int16_t hwdata_len, u_char *hwdata);
67 
68 	/*
69 	 * tx
70 	 */
71 	/**
72 	 * buffer for tx - packet is prepared here
73 	 * (in future for burst write)
74 	 */
75 	unsigned char               *ct_tx_buffer;
76 	/** initial sze TX lock ptrs - number according to TX interfaces */
77 	const struct szedata_lock   **ct_tx_lck_orig;
78 	/** current sze TX lock ptrs - number according to TX interfaces */
79 	const struct szedata_lock   **ct_tx_lck;
80 	/** already written bytes in both locks */
81 	unsigned int                *ct_tx_written_bytes;
82 	/** remaining bytes (not written) within current lock */
83 	unsigned int                *ct_tx_rem_bytes;
84 	/** current pointers to locked memory */
85 	unsigned char               **ct_tx_cur_ptr;
86 	/** NUMA node closest to PCIe device, or -1 */
87 	int                         numa_node;
88 };
89 
90 #endif /* RTE_PMD_SZEDATA2_H_ */
91