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// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2020 Marvell. */
#include "otx2_cpt_common.h"
#include "otx2_cptlf.h"
int otx2_cpt_send_mbox_msg(struct otx2_mbox *mbox, struct pci_dev *pdev)
{
int ret;
otx2_mbox_msg_send(mbox, 0);
ret = otx2_mbox_wait_for_rsp(mbox, 0);
if (ret == -EIO) {
dev_err(&pdev->dev, "RVU MBOX timeout.\n");
return ret;
} else if (ret) {
dev_err(&pdev->dev, "RVU MBOX error: %d.\n", ret);
return -EFAULT;
}
return ret;
}
int otx2_cpt_send_ready_msg(struct otx2_mbox *mbox, struct pci_dev *pdev)
{
struct mbox_msghdr *req;
req = otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
sizeof(struct ready_msg_rsp));
if (req == NULL) {
dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
req->id = MBOX_MSG_READY;
req->sig = OTX2_MBOX_REQ_SIG;
req->pcifunc = 0;
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
int otx2_cpt_send_af_reg_requests(struct otx2_mbox *mbox, struct pci_dev *pdev)
{
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
int otx2_cpt_add_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 *val)
{
struct cpt_rd_wr_reg_msg *reg_msg;
reg_msg = (struct cpt_rd_wr_reg_msg *)
otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*reg_msg),
sizeof(*reg_msg));
if (reg_msg == NULL) {
dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
reg_msg->hdr.id = MBOX_MSG_CPT_RD_WR_REGISTER;
reg_msg->hdr.sig = OTX2_MBOX_REQ_SIG;
reg_msg->hdr.pcifunc = 0;
reg_msg->is_write = 0;
reg_msg->reg_offset = reg;
reg_msg->ret_val = val;
return 0;
}
int otx2_cpt_add_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val)
{
struct cpt_rd_wr_reg_msg *reg_msg;
reg_msg = (struct cpt_rd_wr_reg_msg *)
otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*reg_msg),
sizeof(*reg_msg));
if (reg_msg == NULL) {
dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
reg_msg->hdr.id = MBOX_MSG_CPT_RD_WR_REGISTER;
reg_msg->hdr.sig = OTX2_MBOX_REQ_SIG;
reg_msg->hdr.pcifunc = 0;
reg_msg->is_write = 1;
reg_msg->reg_offset = reg;
reg_msg->val = val;
return 0;
}
int otx2_cpt_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 *val)
{
int ret;
ret = otx2_cpt_add_read_af_reg(mbox, pdev, reg, val);
if (ret)
return ret;
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
int otx2_cpt_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val)
{
int ret;
ret = otx2_cpt_add_write_af_reg(mbox, pdev, reg, val);
if (ret)
return ret;
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
int otx2_cpt_attach_rscrs_msg(struct otx2_cptlfs_info *lfs)
{
struct otx2_mbox *mbox = lfs->mbox;
struct rsrc_attach *req;
int ret;
req = (struct rsrc_attach *)
otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
sizeof(struct msg_rsp));
if (req == NULL) {
dev_err(&lfs->pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
req->hdr.id = MBOX_MSG_ATTACH_RESOURCES;
req->hdr.sig = OTX2_MBOX_REQ_SIG;
req->hdr.pcifunc = 0;
req->cptlfs = lfs->lfs_num;
ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
if (ret)
return ret;
if (!lfs->are_lfs_attached)
ret = -EINVAL;
return ret;
}
int otx2_cpt_detach_rsrcs_msg(struct otx2_cptlfs_info *lfs)
{
struct otx2_mbox *mbox = lfs->mbox;
struct rsrc_detach *req;
int ret;
req = (struct rsrc_detach *)
otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
sizeof(struct msg_rsp));
if (req == NULL) {
dev_err(&lfs->pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
req->hdr.id = MBOX_MSG_DETACH_RESOURCES;
req->hdr.sig = OTX2_MBOX_REQ_SIG;
req->hdr.pcifunc = 0;
ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
if (ret)
return ret;
if (lfs->are_lfs_attached)
ret = -EINVAL;
return ret;
}
int otx2_cpt_msix_offset_msg(struct otx2_cptlfs_info *lfs)
{
struct otx2_mbox *mbox = lfs->mbox;
struct pci_dev *pdev = lfs->pdev;
struct mbox_msghdr *req;
int ret, i;
req = otx2_mbox_alloc_msg_rsp(mbox, 0, sizeof(*req),
sizeof(struct msix_offset_rsp));
if (req == NULL) {
dev_err(&pdev->dev, "RVU MBOX failed to get message.\n");
return -EFAULT;
}
req->id = MBOX_MSG_MSIX_OFFSET;
req->sig = OTX2_MBOX_REQ_SIG;
req->pcifunc = 0;
ret = otx2_cpt_send_mbox_msg(mbox, pdev);
if (ret)
return ret;
for (i = 0; i < lfs->lfs_num; i++) {
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;
}
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