1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2017-2018 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
#ifndef _SFC_DP_H
#define _SFC_DP_H
#include <stdbool.h>
#include <sys/queue.h>
#include <rte_pci.h>
#include "sfc_log.h"
#ifdef __cplusplus
extern "C" {
#endif
#define SFC_DIV_ROUND_UP(a, b) \
__extension__ ({ \
typeof(a) _a = (a); \
typeof(b) _b = (b); \
\
(_a + (_b - 1)) / _b; \
})
/**
* Datapath exception handler to be provided by the control path.
*/
typedef void (sfc_dp_exception_t)(void *ctrl);
enum sfc_dp_type {
SFC_DP_RX = 0, /**< Receive datapath */
SFC_DP_TX, /**< Transmit datapath */
};
/** Datapath queue run-time information */
struct sfc_dp_queue {
uint16_t port_id;
uint16_t queue_id;
struct rte_pci_addr pci_addr;
};
void sfc_dp_queue_init(struct sfc_dp_queue *dpq,
uint16_t port_id, uint16_t queue_id,
const struct rte_pci_addr *pci_addr);
/*
* Helper macro to define datapath logging macros and have uniform
* logging.
*/
#define SFC_DP_LOG(dp_name, level, dpq, ...) \
do { \
const struct sfc_dp_queue *_dpq = (dpq); \
const struct rte_pci_addr *_addr = &(_dpq)->pci_addr; \
\
SFC_GENERIC_LOG(level, \
RTE_FMT("%s " PCI_PRI_FMT \
" #%" PRIu16 ".%" PRIu16 ": " \
RTE_FMT_HEAD(__VA_ARGS__ ,), \
dp_name, \
_addr->domain, _addr->bus, \
_addr->devid, _addr->function, \
_dpq->port_id, _dpq->queue_id, \
RTE_FMT_TAIL(__VA_ARGS__,))); \
} while (0)
/** Datapath definition */
struct sfc_dp {
TAILQ_ENTRY(sfc_dp) links;
const char *name;
enum sfc_dp_type type;
/* Mask of required hardware/firmware capabilities */
unsigned int hw_fw_caps;
#define SFC_DP_HW_FW_CAP_EF10 0x1
#define SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER 0x2
};
/** List of datapath variants */
TAILQ_HEAD(sfc_dp_list, sfc_dp);
/* Check if available HW/FW capabilities are sufficient for the datapath */
static inline bool
sfc_dp_match_hw_fw_caps(const struct sfc_dp *dp, unsigned int avail_caps)
{
return (dp->hw_fw_caps & avail_caps) == dp->hw_fw_caps;
}
struct sfc_dp *sfc_dp_find_by_name(struct sfc_dp_list *head,
enum sfc_dp_type type, const char *name);
struct sfc_dp *sfc_dp_find_by_caps(struct sfc_dp_list *head,
enum sfc_dp_type type,
unsigned int avail_caps);
int sfc_dp_register(struct sfc_dp_list *head, struct sfc_dp *entry);
#ifdef __cplusplus
}
#endif
#endif /* _SFC_DP_H */
|
