aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dmac_flt.c
blob: 846a0294a215c7c129468b414a9de30715b5c80c (plain) (blame)
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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
// SPDX-License-Identifier: GPL-2.0
/* Marvell RVU Ethernet driver
 *
 * Copyright (C) 2021 Marvell.
 *
 */

#include "otx2_common.h"

static int otx2_dmacflt_do_add(struct otx2_nic *pf, const u8 *mac,
			       u32 *dmac_index)
{
	struct cgx_mac_addr_add_req *req;
	struct cgx_mac_addr_add_rsp *rsp;
	int err;

	mutex_lock(&pf->mbox.lock);

	req = otx2_mbox_alloc_msg_cgx_mac_addr_add(&pf->mbox);
	if (!req) {
		mutex_unlock(&pf->mbox.lock);
		return -ENOMEM;
	}

	ether_addr_copy(req->mac_addr, mac);
	err = otx2_sync_mbox_msg(&pf->mbox);

	if (!err) {
		rsp = (struct cgx_mac_addr_add_rsp *)
			 otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr);
		*dmac_index = rsp->index;
	}

	mutex_unlock(&pf->mbox.lock);
	return err;
}

static int otx2_dmacflt_add_pfmac(struct otx2_nic *pf, u32 *dmac_index)
{
	struct cgx_mac_addr_set_or_get *req;
	struct cgx_mac_addr_set_or_get *rsp;
	int err;

	mutex_lock(&pf->mbox.lock);

	req = otx2_mbox_alloc_msg_cgx_mac_addr_set(&pf->mbox);
	if (!req) {
		mutex_unlock(&pf->mbox.lock);
		return -ENOMEM;
	}

	req->index = *dmac_index;

	ether_addr_copy(req->mac_addr, pf->netdev->dev_addr);
	err = otx2_sync_mbox_msg(&pf->mbox);

	if (!err) {
		rsp = (struct cgx_mac_addr_set_or_get *)
			 otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr);
		*dmac_index = rsp->index;
	}

	mutex_unlock(&pf->mbox.lock);
	return err;
}

int otx2_dmacflt_add(struct otx2_nic *pf, const u8 *mac, u32 bit_pos)
{
	u32 *dmacindex;

	/* Store dmacindex returned by CGX/RPM driver which will
	 * be used for macaddr update/remove
	 */
	dmacindex = &pf->flow_cfg->bmap_to_dmacindex[bit_pos];

	if (ether_addr_equal(mac, pf->netdev->dev_addr))
		return otx2_dmacflt_add_pfmac(pf, dmacindex);
	else
		return otx2_dmacflt_do_add(pf, mac, dmacindex);
}

static int otx2_dmacflt_do_remove(struct otx2_nic *pfvf, const u8 *mac,
				  u32 dmac_index)
{
	struct cgx_mac_addr_del_req *req;
	int err;

	mutex_lock(&pfvf->mbox.lock);
	req = otx2_mbox_alloc_msg_cgx_mac_addr_del(&pfvf->mbox);
	if (!req) {
		mutex_unlock(&pfvf->mbox.lock);
		return -ENOMEM;
	}

	req->index = dmac_index;

	err = otx2_sync_mbox_msg(&pfvf->mbox);
	mutex_unlock(&pfvf->mbox.lock);

	return err;
}

static int otx2_dmacflt_remove_pfmac(struct otx2_nic *pf, u32 dmac_index)
{
	struct cgx_mac_addr_reset_req *req;
	int err;

	mutex_lock(&pf->mbox.lock);
	req = otx2_mbox_alloc_msg_cgx_mac_addr_reset(&pf->mbox);
	if (!req) {
		mutex_unlock(&pf->mbox.lock);
		return -ENOMEM;
	}
	req->index = dmac_index;

	err = otx2_sync_mbox_msg(&pf->mbox);

	mutex_unlock(&pf->mbox.lock);
	return err;
}

int otx2_dmacflt_remove(struct otx2_nic *pf, const u8 *mac,
			u32 bit_pos)
{
	u32 dmacindex = pf->flow_cfg->bmap_to_dmacindex[bit_pos];

	if (ether_addr_equal(mac, pf->netdev->dev_addr))
		return otx2_dmacflt_remove_pfmac(pf, dmacindex);
	else
		return otx2_dmacflt_do_remove(pf, mac, dmacindex);
}

/* CGX/RPM blocks support max unicast entries of 32.
 * on typical configuration MAC block associated
 * with 4 lmacs, each lmac will have 8 dmac entries
 */
int otx2_dmacflt_get_max_cnt(struct otx2_nic *pf)
{
	struct cgx_max_dmac_entries_get_rsp *rsp;
	struct msg_req *msg;
	int err;

	mutex_lock(&pf->mbox.lock);
	msg = otx2_mbox_alloc_msg_cgx_mac_max_entries_get(&pf->mbox);

	if (!msg) {
		mutex_unlock(&pf->mbox.lock);
		return -ENOMEM;
	}

	err = otx2_sync_mbox_msg(&pf->mbox);
	if (err)
		goto out;

	rsp = (struct cgx_max_dmac_entries_get_rsp *)
		     otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &msg->hdr);
	pf->flow_cfg->dmacflt_max_flows = rsp->max_dmac_filters;

out:
	mutex_unlock(&pf->mbox.lock);
	return err;
}

int otx2_dmacflt_update(struct otx2_nic *pf, u8 *mac, u32 bit_pos)
{
	struct cgx_mac_addr_update_req *req;
	struct cgx_mac_addr_update_rsp *rsp;
	int rc;

	mutex_lock(&pf->mbox.lock);

	req = otx2_mbox_alloc_msg_cgx_mac_addr_update(&pf->mbox);

	if (!req) {
		mutex_unlock(&pf->mbox.lock);
		return -ENOMEM;
	}

	ether_addr_copy(req->mac_addr, mac);
	req->index = pf->flow_cfg->bmap_to_dmacindex[bit_pos];

	/* check the response and change index */

	rc = otx2_sync_mbox_msg(&pf->mbox);
	if (rc)
		goto out;

	rsp = (struct cgx_mac_addr_update_rsp *)
		otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr);

	pf->flow_cfg->bmap_to_dmacindex[bit_pos] = rsp->index;

out:
	mutex_unlock(&pf->mbox.lock);
	return rc;
}