1 // SPDX-License-Identifier: GPL-2.0-only
13 	cptvf->bbuf_base = devm_kmalloc(&pdev->dev, MBOX_SIZE, GFP_KERNEL);  in otx2_cpt_mbox_bbuf_init()
14 	if (!cptvf->bbuf_base)  in otx2_cpt_mbox_bbuf_init()
15 		return -ENOMEM;  in otx2_cpt_mbox_bbuf_init()
17 	 * Overwrite mbox mbase to point to bounce buffer, so that PF/VF  in otx2_cpt_mbox_bbuf_init()
18 	 * prepare all mbox messages in bounce buffer instead of directly  in otx2_cpt_mbox_bbuf_init()
19 	 * in hw mbox memory.  in otx2_cpt_mbox_bbuf_init()
21 	otx2_mbox = &cptvf->pfvf_mbox;  in otx2_cpt_mbox_bbuf_init()
22 	mdev = &otx2_mbox->dev[0];  in otx2_cpt_mbox_bbuf_init()
23 	mdev->mbase = cptvf->bbuf_base;  in otx2_cpt_mbox_bbuf_init()
28 static void otx2_cpt_sync_mbox_bbuf(struct otx2_mbox *mbox, int devid)  in otx2_cpt_sync_mbox_bbuf()  argument
31 	void *hw_mbase = mbox->hwbase + (devid * MBOX_SIZE);  in otx2_cpt_sync_mbox_bbuf()
32 	struct otx2_mbox_dev *mdev = &mbox->dev[devid];  in otx2_cpt_sync_mbox_bbuf()
36 	if (mdev->mbase == hw_mbase)  in otx2_cpt_sync_mbox_bbuf()
39 	hdr = hw_mbase + mbox->rx_start;  in otx2_cpt_sync_mbox_bbuf()
40 	msg_size = hdr->msg_size;  in otx2_cpt_sync_mbox_bbuf()
42 	if (msg_size > mbox->rx_size - msgs_offset)  in otx2_cpt_sync_mbox_bbuf()
43 		msg_size = mbox->rx_size - msgs_offset;  in otx2_cpt_sync_mbox_bbuf()
45 	/* Copy mbox messages from mbox memory to bounce buffer */  in otx2_cpt_sync_mbox_bbuf()
46 	memcpy(mdev->mbase + mbox->rx_start,  in otx2_cpt_sync_mbox_bbuf()
47 	       hw_mbase + mbox->rx_start, msg_size + msgs_offset);  in otx2_cpt_sync_mbox_bbuf()
56 	intr = otx2_cpt_read64(cptvf->reg_base, BLKADDR_RVUM, 0,  in otx2_cptvf_pfvf_mbox_intr()
60 		/* Schedule work queue function to process the MBOX request */  in otx2_cptvf_pfvf_mbox_intr()
61 		queue_work(cptvf->pfvf_mbox_wq, &cptvf->pfvf_mbox_work);  in otx2_cptvf_pfvf_mbox_intr()
63 		otx2_cpt_write64(cptvf->reg_base, BLKADDR_RVUM, 0,  in otx2_cptvf_pfvf_mbox_intr()
72 	struct otx2_cptlfs_info *lfs = &cptvf->lfs;  in process_pfvf_mbox_mbox_msg()
80 	if (msg->id >= MBOX_MSG_MAX) {  in process_pfvf_mbox_mbox_msg()
81 		dev_err(&cptvf->pdev->dev,  in process_pfvf_mbox_mbox_msg()
82 			"MBOX msg with unknown ID %d\n", msg->id);  in process_pfvf_mbox_mbox_msg()
85 	if (msg->sig != OTX2_MBOX_RSP_SIG) {  in process_pfvf_mbox_mbox_msg()
86 		dev_err(&cptvf->pdev->dev,  in process_pfvf_mbox_mbox_msg()
87 			"MBOX msg with wrong signature %x, ID %d\n",  in process_pfvf_mbox_mbox_msg()
88 			msg->sig, msg->id);  in process_pfvf_mbox_mbox_msg()
91 	switch (msg->id) {  in process_pfvf_mbox_mbox_msg()
93 		cptvf->vf_id = ((msg->pcifunc >> RVU_PFVF_FUNC_SHIFT)  in process_pfvf_mbox_mbox_msg()
94 				& RVU_PFVF_FUNC_MASK) - 1;  in process_pfvf_mbox_mbox_msg()
98 		if (!msg->rc)  in process_pfvf_mbox_mbox_msg()
99 			lfs->are_lfs_attached = 1;  in process_pfvf_mbox_mbox_msg()
103 		if (!msg->rc)  in process_pfvf_mbox_mbox_msg()
104 			lfs->are_lfs_attached = 0;  in process_pfvf_mbox_mbox_msg()
108 		for (i = 0; i < rsp_msix->cptlfs; i++)  in process_pfvf_mbox_mbox_msg()
109 			lfs->lf[i].msix_offset = rsp_msix->cptlf_msixoff[i];  in process_pfvf_mbox_mbox_msg()
113 		if (msg->rc) {  in process_pfvf_mbox_mbox_msg()
114 			dev_err(&cptvf->pdev->dev,  in process_pfvf_mbox_mbox_msg()
116 				rsp_reg->reg_offset, rsp_reg->is_write,  in process_pfvf_mbox_mbox_msg()
117 				msg->rc);  in process_pfvf_mbox_mbox_msg()
120 		if (!rsp_reg->is_write)  in process_pfvf_mbox_mbox_msg()
121 			*rsp_reg->ret_val = rsp_reg->val;  in process_pfvf_mbox_mbox_msg()
125 		cptvf->lfs.kcrypto_eng_grp_num = rsp_grp->eng_grp_num;  in process_pfvf_mbox_mbox_msg()
129 		cptvf->lfs.kvf_limits = rsp_limits->kvf_limits;  in process_pfvf_mbox_mbox_msg()
133 		memcpy(cptvf->eng_caps, eng_caps->eng_caps,  in process_pfvf_mbox_mbox_msg()
134 		       sizeof(cptvf->eng_caps));  in process_pfvf_mbox_mbox_msg()
139 		dev_err(&cptvf->pdev->dev, "Unsupported msg %d received.\n",  in process_pfvf_mbox_mbox_msg()
140 			msg->id);  in process_pfvf_mbox_mbox_msg()
154 	/* sync with mbox memory region */  in otx2_cptvf_pfvf_mbox_handler()
158 	pfvf_mbox = &cptvf->pfvf_mbox;  in otx2_cptvf_pfvf_mbox_handler()
160 	mdev = &pfvf_mbox->dev[0];  in otx2_cptvf_pfvf_mbox_handler()
161 	rsp_hdr = (struct mbox_hdr *)(mdev->mbase + pfvf_mbox->rx_start);  in otx2_cptvf_pfvf_mbox_handler()
162 	if (rsp_hdr->num_msgs == 0)  in otx2_cptvf_pfvf_mbox_handler()
166 	for (i = 0; i < rsp_hdr->num_msgs; i++) {  in otx2_cptvf_pfvf_mbox_handler()
167 		msg = (struct mbox_msghdr *)(mdev->mbase + pfvf_mbox->rx_start +  in otx2_cptvf_pfvf_mbox_handler()
170 		offset = msg->next_msgoff;  in otx2_cptvf_pfvf_mbox_handler()
171 		mdev->msgs_acked++;  in otx2_cptvf_pfvf_mbox_handler()
178 	struct otx2_mbox *mbox = &cptvf->pfvf_mbox;  in otx2_cptvf_send_eng_grp_num_msg()  local
179 	struct pci_dev *pdev = cptvf->pdev;  in otx2_cptvf_send_eng_grp_num_msg()
183 	      otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),  in otx2_cptvf_send_eng_grp_num_msg()
186 		dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");  in otx2_cptvf_send_eng_grp_num_msg()
187 		return -EFAULT;  in otx2_cptvf_send_eng_grp_num_msg()
189 	req->hdr.id = MBOX_MSG_GET_ENG_GRP_NUM;  in otx2_cptvf_send_eng_grp_num_msg()
190 	req->hdr.sig = OTX2_MBOX_REQ_SIG;  in otx2_cptvf_send_eng_grp_num_msg()
191 	req->hdr.pcifunc = OTX2_CPT_RVU_PFFUNC(cptvf->vf_id, 0);  in otx2_cptvf_send_eng_grp_num_msg()
192 	req->eng_type = eng_type;  in otx2_cptvf_send_eng_grp_num_msg()
194 	return otx2_cpt_send_mbox_msg(mbox, pdev);  in otx2_cptvf_send_eng_grp_num_msg()
199 	struct otx2_mbox *mbox = &cptvf->pfvf_mbox;  in otx2_cptvf_send_kvf_limits_msg()  local
200 	struct pci_dev *pdev = cptvf->pdev;  in otx2_cptvf_send_kvf_limits_msg()
204 	      otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),  in otx2_cptvf_send_kvf_limits_msg()
207 		dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");  in otx2_cptvf_send_kvf_limits_msg()
208 		return -EFAULT;  in otx2_cptvf_send_kvf_limits_msg()
210 	req->id = MBOX_MSG_GET_KVF_LIMITS;  in otx2_cptvf_send_kvf_limits_msg()
211 	req->sig = OTX2_MBOX_REQ_SIG;  in otx2_cptvf_send_kvf_limits_msg()
212 	req->pcifunc = OTX2_CPT_RVU_PFFUNC(cptvf->vf_id, 0);  in otx2_cptvf_send_kvf_limits_msg()
214 	return otx2_cpt_send_mbox_msg(mbox, pdev);  in otx2_cptvf_send_kvf_limits_msg()
219 	struct otx2_mbox *mbox = &cptvf->pfvf_mbox;  in otx2_cptvf_send_caps_msg()  local
220 	struct pci_dev *pdev = cptvf->pdev;  in otx2_cptvf_send_caps_msg()
224 	      otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),  in otx2_cptvf_send_caps_msg()
227 		dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");  in otx2_cptvf_send_caps_msg()
228 		return -EFAULT;  in otx2_cptvf_send_caps_msg()
230 	req->id = MBOX_MSG_GET_CAPS;  in otx2_cptvf_send_caps_msg()
231 	req->sig = OTX2_MBOX_REQ_SIG;  in otx2_cptvf_send_caps_msg()
232 	req->pcifunc = OTX2_CPT_RVU_PFFUNC(cptvf->vf_id, 0);  in otx2_cptvf_send_caps_msg()
234 	return otx2_cpt_send_mbox_msg(mbox, pdev);  in otx2_cptvf_send_caps_msg()