1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
3 */
4
5 #include <rte_malloc.h>
6
7 #include "nitrox_device.h"
8 #include "nitrox_hal.h"
9 #include "nitrox_sym.h"
10
11 #define PCI_VENDOR_ID_CAVIUM 0x177d
12 #define NITROX_V_PCI_VF_DEV_ID 0x13
13
14 TAILQ_HEAD(ndev_list, nitrox_device);
15 static struct ndev_list ndev_list = TAILQ_HEAD_INITIALIZER(ndev_list);
16
17 static struct nitrox_device *
ndev_allocate(struct rte_pci_device * pdev)18 ndev_allocate(struct rte_pci_device *pdev)
19 {
20 struct nitrox_device *ndev;
21
22 ndev = rte_zmalloc_socket("nitrox device", sizeof(*ndev),
23 RTE_CACHE_LINE_SIZE,
24 pdev->device.numa_node);
25 if (!ndev)
26 return NULL;
27
28 TAILQ_INSERT_TAIL(&ndev_list, ndev, next);
29 return ndev;
30 }
31
32 static void
ndev_init(struct nitrox_device * ndev,struct rte_pci_device * pdev)33 ndev_init(struct nitrox_device *ndev, struct rte_pci_device *pdev)
34 {
35 enum nitrox_vf_mode vf_mode;
36
37 ndev->pdev = pdev;
38 ndev->bar_addr = pdev->mem_resource[0].addr;
39 vf_mode = vf_get_vf_config_mode(ndev->bar_addr);
40 ndev->nr_queues = vf_config_mode_to_nr_queues(vf_mode);
41 }
42
43 static struct nitrox_device *
find_ndev(struct rte_pci_device * pdev)44 find_ndev(struct rte_pci_device *pdev)
45 {
46 struct nitrox_device *ndev;
47
48 TAILQ_FOREACH(ndev, &ndev_list, next)
49 if (ndev->pdev == pdev)
50 return ndev;
51
52 return NULL;
53 }
54
55 static void
ndev_release(struct nitrox_device * ndev)56 ndev_release(struct nitrox_device *ndev)
57 {
58 if (!ndev)
59 return;
60
61 TAILQ_REMOVE(&ndev_list, ndev, next);
62 rte_free(ndev);
63 }
64
65 static int
nitrox_pci_probe(struct rte_pci_driver * pci_drv __rte_unused,struct rte_pci_device * pdev)66 nitrox_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
67 struct rte_pci_device *pdev)
68 {
69 struct nitrox_device *ndev;
70 int err;
71
72 /* Nitrox CSR space */
73 if (!pdev->mem_resource[0].addr)
74 return -EINVAL;
75
76 ndev = ndev_allocate(pdev);
77 if (!ndev)
78 return -ENOMEM;
79
80 ndev_init(ndev, pdev);
81 err = nitrox_sym_pmd_create(ndev);
82 if (err) {
83 ndev_release(ndev);
84 return err;
85 }
86
87 return 0;
88 }
89
90 static int
nitrox_pci_remove(struct rte_pci_device * pdev)91 nitrox_pci_remove(struct rte_pci_device *pdev)
92 {
93 struct nitrox_device *ndev;
94 int err;
95
96 ndev = find_ndev(pdev);
97 if (!ndev)
98 return -ENODEV;
99
100 err = nitrox_sym_pmd_destroy(ndev);
101 if (err)
102 return err;
103
104 ndev_release(ndev);
105 return 0;
106 }
107
108 static struct rte_pci_id pci_id_nitrox_map[] = {
109 {
110 /* Nitrox 5 VF */
111 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, NITROX_V_PCI_VF_DEV_ID)
112 },
113 {.device_id = 0},
114 };
115
116 static struct rte_pci_driver nitrox_pmd = {
117 .id_table = pci_id_nitrox_map,
118 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
119 .probe = nitrox_pci_probe,
120 .remove = nitrox_pci_remove,
121 };
122
123 RTE_PMD_REGISTER_PCI(nitrox, nitrox_pmd);
124 RTE_PMD_REGISTER_PCI_TABLE(nitrox, pci_id_nitrox_map);
125