public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/drivers/crypto/marvell/octeontx2/otx2_cpt_mbox_common.c
Bharat Bhushan d15cbe7137 crypto: octeontx2 - Use dynamic allocated memory region for lmtst 
Current driver uses static LMTST region allocated by firmware.
Firmware allocated memory for LMTST is available in PF/VF BAR2.
Using this memory have performance impact as this is mapped as
device memory. There is another option to allocate contiguous
memory at run time and map this in LMT MAP table with the
help of AF driver. With this patch dynamic allocated memory
is used for LMTST.

Also add myself as maintainer for crypto octeontx2 driver

Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-05-19 13:48:48 +08:00

282 lines
6.9 KiB
C
Raw Permalink Blame History

// 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;
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_mbox_msg, "CRYPTO_DEV_OCTEONTX2_CPT");
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);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_ready_msg, "CRYPTO_DEV_OCTEONTX2_CPT");
int otx2_cpt_send_af_reg_requests(struct otx2_mbox *mbox, struct pci_dev *pdev)
{
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_send_af_reg_requests, "CRYPTO_DEV_OCTEONTX2_CPT");
static int otx2_cpt_add_read_af_reg(struct otx2_mbox *mbox,
struct pci_dev *pdev, u64 reg,
u64 *val, int blkaddr)
{
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;
reg_msg->blkaddr = blkaddr;
return 0;
}
int otx2_cpt_add_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val, int blkaddr)
{
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;
reg_msg->blkaddr = blkaddr;
return 0;
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_add_write_af_reg, "CRYPTO_DEV_OCTEONTX2_CPT");
int otx2_cpt_read_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 *val, int blkaddr)
{
int ret;
ret = otx2_cpt_add_read_af_reg(mbox, pdev, reg, val, blkaddr);
if (ret)
return ret;
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_read_af_reg, "CRYPTO_DEV_OCTEONTX2_CPT");
int otx2_cpt_write_af_reg(struct otx2_mbox *mbox, struct pci_dev *pdev,
u64 reg, u64 val, int blkaddr)
{
int ret;
ret = otx2_cpt_add_write_af_reg(mbox, pdev, reg, val, blkaddr);
if (ret)
return ret;
return otx2_cpt_send_mbox_msg(mbox, pdev);
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_write_af_reg, "CRYPTO_DEV_OCTEONTX2_CPT");
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;
req->cpt_blkaddr = lfs->blkaddr;
req->modify = 1;
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;
req->cptlfs = 1;
ret = otx2_cpt_send_mbox_msg(mbox, lfs->pdev);
if (ret)
return ret;
if (lfs->are_lfs_attached)
ret = -EINVAL;
return ret;
}
EXPORT_SYMBOL_NS_GPL(otx2_cpt_detach_rsrcs_msg, "CRYPTO_DEV_OCTEONTX2_CPT");
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;
}
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");
Reference in a new issue View git blame Copy permalink