drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c

Source file repositories/reference/linux-study-clean/drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c

File Facts

System
Linux kernel
Corpus path
drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c
Extension
.c
Size
7112 bytes
Lines
283
Domain
Driver Families
Bucket
drivers/crypto
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (lfs->lf[i].msix_offset == MSIX_VECTOR_INVALID) {
			dev_err(&pdev->dev,
				"Invalid msix offset %d for LF %d\n",
				lfs->lf[i].msix_offset, i);
			return -EINVAL;
		}
	}
	return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_msix_offset_msg, "CRYPTO_DEV_OCTEONTX2_CPT");

int otx2_cpt_sync_mbox_msg(struct otx2_mbox *mbox)
{
	int err;

	if (!otx2_mbox_nonempty(mbox, 0))
		return 0;
	otx2_mbox_msg_send(mbox, 0);
	err = otx2_mbox_wait_for_rsp(mbox, 0);
	if (err)
		return err;

	return otx2_mbox_check_rsp_msgs(mbox, 0);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_sync_mbox_msg, "CRYPTO_DEV_OCTEONTX2_CPT");

int otx2_cpt_lf_reset_msg(struct otx2_cptlfs_info *lfs, int slot)
{
	struct otx2_mbox *mbox = lfs->mbox;
	struct pci_dev *pdev = lfs->pdev;
	struct cpt_lf_rst_req *req;
	int ret;

	req = (struct cpt_lf_rst_req *)otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
							       sizeof(struct msg_rsp));
	if (!req) {
		dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
		return -EFAULT;
	}

	req->hdr.id = MBOX_MSG_CPT_LF_RESET;
	req->hdr.sig = OTX2_MBOX_REQ_SIG;
	req->hdr.pcifunc = 0;
	req->slot = slot;
	ret = otx2_cpt_send_mbox_msg(mbox, pdev);
	if (ret)
		return ret;

	return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_lf_reset_msg, "CRYPTO_DEV_OCTEONTX2_CPT");

int otx2_cpt_lmtst_tbl_setup_msg(struct otx2_cptlfs_info *lfs)
{
	struct otx2_mbox *mbox = lfs->mbox;
	struct pci_dev *pdev = lfs->pdev;
	struct lmtst_tbl_setup_req *req;

	req = (struct lmtst_tbl_setup_req *)
	       otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
				       sizeof(struct msg_rsp));
	if (!req) {
		dev_err(&pdev->dev, "RVU MBOX failed to alloc message.\n");
		return -EFAULT;
	}

	req->hdr.id = MBOX_MSG_LMTST_TBL_SETUP;
	req->hdr.sig = OTX2_MBOX_REQ_SIG;
	req->hdr.pcifunc = 0;

	req->use_local_lmt_region = true;
	req->lmt_iova = lfs->lmt_info.iova;

	return otx2_cpt_send_mbox_msg(mbox, pdev);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_lmtst_tbl_setup_msg, "CRYPTO_DEV_OCTEONTX2_CPT");

Annotation

Implementation Notes