1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (C) 2020 Marvell. */
3
4 #include "otx2_cpt_common.h"
5 #include "otx2_cptlf.h"
6
otx2_cpt_send_mbox_msg(struct otx2_mbox * mbox,struct pci_dev * pdev)7 int otx2_cpt_send_mbox_msg(struct otx2_mbox *mbox, struct pci_dev *pdev)
8 {
9 int ret;
10
11 otx2_mbox_msg_send(mbox, 0);
12 ret = otx2_mbox_wait_for_rsp(mbox, 0);
13 if (ret == -EIO) {
14 dev_err(&pdev->dev, "RVU MBOX timeout.\n");
15 return ret;
16 } else if (ret) {
17 dev_err(&pdev->dev, "RVU MBOX error: %d.\n", ret);
18 return -EFAULT;
19 }
20 return ret;
21 }
22 EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_mbox_msg, CRYPTO_DEV_OCTEONTX2_CPT);
23
otx2_cpt_send_ready_msg(struct otx2_mbox * mbox,struct pci_dev * pdev)24 int otx2_cpt_send_ready_msg(struct otx2_mbox *mbox, struct pci_dev *pdev)
25 {
26 struct mbox_msghdr *req;
27
28 req = otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
29 sizeof(struct ready_msg_rsp));
30 if (req == NULL) {
31 dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
32 return -EFAULT;
33 }
34 req->id = MBOX_MSG_READY;
35 req->sig = OTX2_MBOX_REQ_SIG;
36 req->pcifunc = 0;
37
38 return otx2_cpt_send_mbox_msg(mbox, pdev);
39 }
40 EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_ready_msg, CRYPTO_DEV_OCTEONTX2_CPT);
41
otx2_cpt_send_af_reg_requests(struct otx2_mbox * mbox,struct pci_dev * pdev)42 int otx2_cpt_send_af_reg_requests(struct otx2_mbox *mbox, struct pci_dev *pdev)
43 {
44 return otx2_cpt_send_mbox_msg(mbox, pdev);
45 }
46 EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_af_reg_requests, CRYPTO_DEV_OCTEONTX2_CPT);
47
otx2_cpt_add_read_af_reg(struct otx2_mbox * mbox,struct pci_dev * pdev,u64 reg,u64 * val,int blkaddr)48 static int otx2_cpt_add_read_af_reg(struct otx2_mbox *mbox,
49 struct pci_dev *pdev, u64 reg,
50 u64 *val, int blkaddr)
51 {
52 struct cpt_rd_wr_reg_msg *reg_msg;
53
54 reg_msg = (struct cpt_rd_wr_reg_msg *)
55 otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*reg_msg),
56 sizeof(*reg_msg));
57 if (reg_msg == NULL) {
58 dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
59 return -EFAULT;
60 }
61
62 reg_msg->hdr.id = MBOX_MSG_CPT_RD_WR_REGISTER;
63 reg_msg->hdr.sig = OTX2_MBOX_REQ_SIG;
64 reg_msg->hdr.pcifunc = 0;
65
66 reg_msg->is_write = 0;
67 reg_msg->reg_offset = reg;
68 reg_msg->ret_val = val;
69 reg_msg->blkaddr = blkaddr;
70
71 return 0;
72 }
73
otx2_cpt_add_write_af_reg(struct otx2_mbox * mbox,struct pci_dev * pdev,u64 reg,u64 val,int blkaddr)74 int otx2_cpt_add_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
75 u64 reg, u64 val, int blkaddr)
76 {
77 struct cpt_rd_wr_reg_msg *reg_msg;
78
79 reg_msg = (struct cpt_rd_wr_reg_msg *)
80 otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*reg_msg),
81 sizeof(*reg_msg));
82 if (reg_msg == NULL) {
83 dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
84 return -EFAULT;
85 }
86
87 reg_msg->hdr.id = MBOX_MSG_CPT_RD_WR_REGISTER;
88 reg_msg->hdr.sig = OTX2_MBOX_REQ_SIG;
89 reg_msg->hdr.pcifunc = 0;
90
91 reg_msg->is_write = 1;
92 reg_msg->reg_offset = reg;
93 reg_msg->val = val;
94 reg_msg->blkaddr = blkaddr;
95
96 return 0;
97 }
98 EXPORT_SYMBOL_NS_GPL(otx2_cpt_add_write_af_reg, CRYPTO_DEV_OCTEONTX2_CPT);
99
otx2_cpt_read_af_reg(struct otx2_mbox * mbox,struct pci_dev * pdev,u64 reg,u64 * val,int blkaddr)100 int otx2_cpt_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
101 u64 reg, u64 *val, int blkaddr)
102 {
103 int ret;
104
105 ret = otx2_cpt_add_read_af_reg(mbox, pdev, reg, val, blkaddr);
106 if (ret)
107 return ret;
108
109 return otx2_cpt_send_mbox_msg(mbox, pdev);
110 }
111 EXPORT_SYMBOL_NS_GPL(otx2_cpt_read_af_reg, CRYPTO_DEV_OCTEONTX2_CPT);
112
otx2_cpt_write_af_reg(struct otx2_mbox * mbox,struct pci_dev * pdev,u64 reg,u64 val,int blkaddr)113 int otx2_cpt_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
114 u64 reg, u64 val, int blkaddr)
115 {
116 int ret;
117
118 ret = otx2_cpt_add_write_af_reg(mbox, pdev, reg, val, blkaddr);
119 if (ret)
120 return ret;
121
122 return otx2_cpt_send_mbox_msg(mbox, pdev);
123 }
124 EXPORT_SYMBOL_NS_GPL(otx2_cpt_write_af_reg, CRYPTO_DEV_OCTEONTX2_CPT);
125
otx2_cpt_attach_rscrs_msg(struct otx2_cptlfs_info * lfs)126 int otx2_cpt_attach_rscrs_msg(struct otx2_cptlfs_info *lfs)
127 {
128 struct otx2_mbox *mbox = lfs->mbox;
129 struct rsrc_attach *req;
130 int ret;
131
132 req = (struct rsrc_attach *)
133 otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
134 sizeof(struct msg_rsp));
135 if (req == NULL) {
136 dev_err(&lfs->pdev->dev, "RVU MBOX failed to get message.\n");
137 return -EFAULT;
138 }
139
140 req->hdr.id = MBOX_MSG_ATTACH_RESOURCES;
141 req->hdr.sig = OTX2_MBOX_REQ_SIG;
142 req->hdr.pcifunc = 0;
143 req->cptlfs = lfs->lfs_num;
144 ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
145 if (ret)
146 return ret;
147
148 if (!lfs->are_lfs_attached)
149 ret = -EINVAL;
150
151 return ret;
152 }
153
otx2_cpt_detach_rsrcs_msg(struct otx2_cptlfs_info * lfs)154 int otx2_cpt_detach_rsrcs_msg(struct otx2_cptlfs_info *lfs)
155 {
156 struct otx2_mbox *mbox = lfs->mbox;
157 struct rsrc_detach *req;
158 int ret;
159
160 req = (struct rsrc_detach *)
161 otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
162 sizeof(struct msg_rsp));
163 if (req == NULL) {
164 dev_err(&lfs->pdev->dev, "RVU MBOX failed to get message.\n");
165 return -EFAULT;
166 }
167
168 req->hdr.id = MBOX_MSG_DETACH_RESOURCES;
169 req->hdr.sig = OTX2_MBOX_REQ_SIG;
170 req->hdr.pcifunc = 0;
171 ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
172 if (ret)
173 return ret;
174
175 if (lfs->are_lfs_attached)
176 ret = -EINVAL;
177
178 return ret;
179 }
180 EXPORT_SYMBOL_NS_GPL(otx2_cpt_detach_rsrcs_msg, CRYPTO_DEV_OCTEONTX2_CPT);
181
otx2_cpt_msix_offset_msg(struct otx2_cptlfs_info * lfs)182 int otx2_cpt_msix_offset_msg(struct otx2_cptlfs_info *lfs)
183 {
184 struct otx2_mbox *mbox = lfs->mbox;
185 struct pci_dev *pdev = lfs->pdev;
186 struct mbox_msghdr *req;
187 int ret, i;
188
189 req = otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
190 sizeof(struct msix_offset_rsp));
191 if (req == NULL) {
192 dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
193 return -EFAULT;
194 }
195
196 req->id = MBOX_MSG_MSIX_OFFSET;
197 req->sig = OTX2_MBOX_REQ_SIG;
198 req->pcifunc = 0;
199 ret = otx2_cpt_send_mbox_msg(mbox, pdev);
200 if (ret)
201 return ret;
202
203 for (i = 0; i < lfs->lfs_num; i++) {
204 if (lfs->lf[i].msix_offset == MSIX_VECTOR_INVALID) {
205 dev_err(&pdev->dev,
206 "Invalid msix offset %d for LF %d\n",
207 lfs->lf[i].msix_offset, i);
208 return -EINVAL;
209 }
210 }
211 return ret;
212 }
213 EXPORT_SYMBOL_NS_GPL(otx2_cpt_msix_offset_msg, CRYPTO_DEV_OCTEONTX2_CPT);
214
otx2_cpt_sync_mbox_msg(struct otx2_mbox * mbox)215 int otx2_cpt_sync_mbox_msg(struct otx2_mbox *mbox)
216 {
217 int err;
218
219 if (!otx2_mbox_nonempty(mbox, 0))
220 return 0;
221 otx2_mbox_msg_send(mbox, 0);
222 err = otx2_mbox_wait_for_rsp(mbox, 0);
223 if (err)
224 return err;
225
226 return otx2_mbox_check_rsp_msgs(mbox, 0);
227 }
228 EXPORT_SYMBOL_NS_GPL(otx2_cpt_sync_mbox_msg, CRYPTO_DEV_OCTEONTX2_CPT);
229