1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
3 
4 #include <linux/module.h>
5 #include <linux/netdevice.h>
6 
7 #include "ionic.h"
8 #include "ionic_bus.h"
9 #include "ionic_lif.h"
10 #include "ionic_devlink.h"
11 
12 static int ionic_dl_flash_update(struct devlink *dl,
13 				 const char *fwname,
14 				 const char *component,
15 				 struct netlink_ext_ack *extack)
16 {
17 	struct ionic *ionic = devlink_priv(dl);
18 
19 	if (component)
20 		return -EOPNOTSUPP;
21 
22 	return ionic_firmware_update(ionic->lif, fwname, extack);
23 }
24 
25 static int ionic_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
26 			     struct netlink_ext_ack *extack)
27 {
28 	struct ionic *ionic = devlink_priv(dl);
29 	struct ionic_dev *idev = &ionic->idev;
30 	char buf[16];
31 	int err = 0;
32 
33 	err = devlink_info_driver_name_put(req, IONIC_DRV_NAME);
34 	if (err)
35 		return err;
36 
37 	err = devlink_info_version_running_put(req,
38 					       DEVLINK_INFO_VERSION_GENERIC_FW,
39 					       idev->dev_info.fw_version);
40 	if (err)
41 		return err;
42 
43 	snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_type);
44 	err = devlink_info_version_fixed_put(req,
45 					     DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
46 					     buf);
47 	if (err)
48 		return err;
49 
50 	snprintf(buf, sizeof(buf), "0x%x", idev->dev_info.asic_rev);
51 	err = devlink_info_version_fixed_put(req,
52 					     DEVLINK_INFO_VERSION_GENERIC_ASIC_REV,
53 					     buf);
54 	if (err)
55 		return err;
56 
57 	err = devlink_info_serial_number_put(req, idev->dev_info.serial_num);
58 
59 	return err;
60 }
61 
62 static const struct devlink_ops ionic_dl_ops = {
63 	.info_get	= ionic_dl_info_get,
64 	.flash_update	= ionic_dl_flash_update,
65 };
66 
67 struct ionic *ionic_devlink_alloc(struct device *dev)
68 {
69 	struct devlink *dl;
70 
71 	dl = devlink_alloc(&ionic_dl_ops, sizeof(struct ionic));
72 
73 	return devlink_priv(dl);
74 }
75 
76 void ionic_devlink_free(struct ionic *ionic)
77 {
78 	struct devlink *dl = priv_to_devlink(ionic);
79 
80 	devlink_free(dl);
81 }
82 
83 int ionic_devlink_register(struct ionic *ionic)
84 {
85 	struct devlink *dl = priv_to_devlink(ionic);
86 	struct devlink_port_attrs attrs = {};
87 	int err;
88 
89 	err = devlink_register(dl, ionic->dev);
90 	if (err) {
91 		dev_warn(ionic->dev, "devlink_register failed: %d\n", err);
92 		return err;
93 	}
94 
95 	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
96 	devlink_port_attrs_set(&ionic->dl_port, &attrs);
97 	err = devlink_port_register(dl, &ionic->dl_port, 0);
98 	if (err)
99 		dev_err(ionic->dev, "devlink_port_register failed: %d\n", err);
100 	else
101 		devlink_port_type_eth_set(&ionic->dl_port,
102 					  ionic->lif->netdev);
103 
104 	return err;
105 }
106 
107 void ionic_devlink_unregister(struct ionic *ionic)
108 {
109 	struct devlink *dl = priv_to_devlink(ionic);
110 
111 	if (ionic->dl_port.registered)
112 		devlink_port_unregister(&ionic->dl_port);
113 	devlink_unregister(dl);
114 }
115