Mailbox region configuration has some changes on CN10K platform
from OcteonTX2(CN9XX) platform.
On CN10K platform:
The DRAM region allocated to PF is enumerated as PF BAR4 memory.
PF BAR4 contains AF-PF mbox region followed by its VFs mbox region.
AF-PF mbox region base address is configured at RVU_AF_PFX_BAR4_ADDR
PF-VF mailbox base address is configured at
RVU_PF(x)_VF_MBOX_ADDR = RVU_AF_PF()_BAR4_ADDR+64KB. PF access its
mbox region via BAR4, whereas VF accesses PF-VF DRAM mailboxes via
BAR2 indirect access.
On CN9XX platform:
Mailbox region in DRAM is divided into two parts AF-PF mbox region and
PF-VF mbox region i.e all PFs mbox region is contiguous similarly all
VFs.
The base address of the AF-PF mbox region is configured at
RVU_AF_PF_BAR4_ADDR.
AF-PF1 mbox address can be calculated as RVU_AF_PF_BAR4_ADDR * mbox
size.
This patch changes mbox initialization to support both CN9XX and CN10K
platform.
This patch also removes platform specific name from the PF/VF driver name
to make it appropriate for all supported platforms.
Signed-off-by: Srujana Challa <schalla@xxxxxxxxxxx>
---
drivers/crypto/marvell/octeontx2/Makefile | 12 ++---
.../marvell/octeontx2/otx2_cpt_common.h | 20 +++++++++
.../marvell/octeontx2/otx2_cpt_hw_types.h | 3 ++
drivers/crypto/marvell/octeontx2/otx2_cptpf.h | 1 +
.../marvell/octeontx2/otx2_cptpf_main.c | 35 +++++++++------
drivers/crypto/marvell/octeontx2/otx2_cptvf.h | 3 ++
.../marvell/octeontx2/otx2_cptvf_main.c | 45 +++++++++++++------
.../marvell/octeontx2/otx2_cptvf_mbox.c | 43 ++++++++++++++++++
8 files changed, 129 insertions(+), 33 deletions(-)
diff --git a/drivers/crypto/marvell/octeontx2/Makefile b/drivers/crypto/marvell/octeontx2/Makefile
index b9c6201019e0..10e1fe056a9e 100644
--- a/drivers/crypto/marvell/octeontx2/Makefile
+++ b/drivers/crypto/marvell/octeontx2/Makefile
@@ -1,10 +1,10 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_CRYPTO_DEV_OCTEONTX2_CPT) += octeontx2-cpt.o octeontx2-cptvf.o
+obj-$(CONFIG_CRYPTO_DEV_OCTEONTX2_CPT) += rvu_cptpf.o rvu_cptvf.o
-octeontx2-cpt-objs := otx2_cptpf_main.o otx2_cptpf_mbox.o \
- otx2_cpt_mbox_common.o otx2_cptpf_ucode.o otx2_cptlf.o
-octeontx2-cptvf-objs := otx2_cptvf_main.o otx2_cptvf_mbox.o otx2_cptlf.o \
- otx2_cpt_mbox_common.o otx2_cptvf_reqmgr.o \
- otx2_cptvf_algs.o
+rvu_cptpf-objs := otx2_cptpf_main.o otx2_cptpf_mbox.o \
+ otx2_cpt_mbox_common.o otx2_cptpf_ucode.o otx2_cptlf.o
+rvu_cptvf-objs := otx2_cptvf_main.o otx2_cptvf_mbox.o otx2_cptlf.o \
+ otx2_cpt_mbox_common.o otx2_cptvf_reqmgr.o \
+ otx2_cptvf_algs.o
ccflags-y += -I$(srctree)/drivers/net/ethernet/marvell/octeontx2/af
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h
index ecedd91a8d85..414427dcfa61 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_common.h
@@ -25,6 +25,9 @@
#define OTX2_CPT_NAME_LENGTH 64
#define OTX2_CPT_DMA_MINALIGN 128
+/* HW capability flags */
+#define CN10K_MBOX 0
+
#define BAD_OTX2_CPT_ENG_TYPE OTX2_CPT_MAX_ENG_TYPES
enum otx2_cpt_eng_type {
@@ -116,6 +119,23 @@ static inline u64 otx2_cpt_read64(void __iomem *reg_base, u64 blk, u64 slot,
OTX2_CPT_RVU_FUNC_ADDR_S(blk, slot, offs));
}
+static inline bool is_dev_otx2(struct pci_dev *pdev)
+{
+ if (pdev->device == OTX2_CPT_PCI_PF_DEVICE_ID ||
+ pdev->device == OTX2_CPT_PCI_VF_DEVICE_ID)
+ return true;
+
+ return false;
+}
+
+static inline void otx2_cpt_set_hw_caps(struct pci_dev *pdev,
+ unsigned long *cap_flag)
+{
+ if (!is_dev_otx2(pdev))
+ __set_bit(CN10K_MBOX, cap_flag);
+}
+
+
int otx2_cpt_send_ready_msg(struct otx2_mbox *mbox, struct pci_dev *pdev);
int otx2_cpt_send_mbox_msg(struct otx2_mbox *mbox, struct pci_dev *pdev);
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cpt_hw_types.h b/drivers/crypto/marvell/octeontx2/otx2_cpt_hw_types.h
index ecafc42f37a2..391a457f7116 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cpt_hw_types.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cpt_hw_types.h
@@ -10,6 +10,8 @@
/* Device IDs */
#define OTX2_CPT_PCI_PF_DEVICE_ID 0xA0FD
#define OTX2_CPT_PCI_VF_DEVICE_ID 0xA0FE
+#define CN10K_CPT_PCI_PF_DEVICE_ID 0xA0F2
+#define CN10K_CPT_PCI_VF_DEVICE_ID 0xA0F3
/* Mailbox interrupts offset */
#define OTX2_CPT_PF_MBOX_INT 6
@@ -25,6 +27,7 @@
*/
#define OTX2_CPT_VF_MSIX_VECTORS 1
#define OTX2_CPT_VF_INTR_MBOX_MASK BIT(0)
+#define CN10K_CPT_VF_MBOX_REGION (0xC0000)
/* CPT LF MSIX vectors */
#define OTX2_CPT_LF_MSIX_VECTORS 2
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf.h b/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
index e19af1356f12..5ebba86c65d9 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf.h
@@ -47,6 +47,7 @@ struct otx2_cptpf_dev {
struct workqueue_struct *flr_wq;
struct cptpf_flr_work *flr_work;
+ unsigned long cap_flag;
u8 pf_id; /* RVU PF number */
u8 max_vfs; /* Maximum number of VFs supported by CPT */
u8 enabled_vfs; /* Number of enabled VFs */
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
index 58f47e3ab62e..d341aecd3dd2 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptpf_main.c
@@ -8,8 +8,8 @@
#include "otx2_cptpf.h"
#include "rvu_reg.h"
-#define OTX2_CPT_DRV_NAME "octeontx2-cpt"
-#define OTX2_CPT_DRV_STRING "Marvell OcteonTX2 CPT Physical Function Driver"
+#define OTX2_CPT_DRV_NAME "rvu_cptpf"
+#define OTX2_CPT_DRV_STRING "Marvell RVU CPT Physical Function Driver"
static void cptpf_enable_vfpf_mbox_intr(struct otx2_cptpf_dev *cptpf,
int num_vfs)
@@ -284,7 +284,11 @@ static int cptpf_vfpf_mbox_init(struct otx2_cptpf_dev *cptpf, int num_vfs)
return -ENOMEM;
/* Map VF-PF mailbox memory */
- vfpf_mbox_base = readq(cptpf->reg_base + RVU_PF_VF_BAR4_ADDR);
+ if (test_bit(CN10K_MBOX, &cptpf->cap_flag))
+ vfpf_mbox_base = readq(cptpf->reg_base + RVU_PF_VF_MBOX_ADDR);
+ else
+ vfpf_mbox_base = readq(cptpf->reg_base + RVU_PF_VF_BAR4_ADDR);
+
if (!vfpf_mbox_base) {
dev_err(dev, "VF-PF mailbox address not configured\n");
err = -ENOMEM;
@@ -365,6 +369,8 @@ static int cptpf_register_afpf_mbox_intr(struct otx2_cptpf_dev *cptpf)
static int cptpf_afpf_mbox_init(struct otx2_cptpf_dev *cptpf)
{
+ struct pci_dev *pdev = cptpf->pdev;
+ resource_size_t offset;
int err;
cptpf->afpf_mbox_wq = alloc_workqueue("cpt_afpf_mailbox",
@@ -373,8 +379,17 @@ static int cptpf_afpf_mbox_init(struct otx2_cptpf_dev *cptpf)
if (!cptpf->afpf_mbox_wq)
return -ENOMEM;
+ offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
+ /* Map AF-PF mailbox memory */
+ cptpf->afpf_mbox_base = devm_ioremap_wc(&pdev->dev, offset, MBOX_SIZE);
+ if (!cptpf->afpf_mbox_base) {
+ dev_err(&pdev->dev, "Unable to map BAR4\n");
+ err = -ENOMEM;
+ goto error;
+ }
+
err = otx2_mbox_init(&cptpf->afpf_mbox, cptpf->afpf_mbox_base,
- cptpf->pdev, cptpf->reg_base, MBOX_DIR_PFAF, 1);
+ pdev, cptpf->reg_base, MBOX_DIR_PFAF, 1);
if (err)
goto error;
@@ -607,7 +622,6 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct device *dev = &pdev->dev;
- resource_size_t offset, size;
struct otx2_cptpf_dev *cptpf;
int err;
@@ -644,15 +658,6 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
if (err)
goto clear_drvdata;
- offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
- size = pci_resource_len(pdev, PCI_MBOX_BAR_NUM);
- /* Map AF-PF mailbox memory */
- cptpf->afpf_mbox_base = devm_ioremap_wc(dev, offset, size);
- if (!cptpf->afpf_mbox_base) {
- dev_err(&pdev->dev, "Unable to map BAR4\n");
- err = -ENODEV;
- goto clear_drvdata;
- }
err = pci_alloc_irq_vectors(pdev, RVU_PF_INT_VEC_CNT,
RVU_PF_INT_VEC_CNT, PCI_IRQ_MSIX);
if (err < 0) {
@@ -660,6 +665,7 @@ static int otx2_cptpf_probe(struct pci_dev *pdev,
RVU_PF_INT_VEC_CNT);
goto clear_drvdata;
}
+ otx2_cpt_set_hw_caps(pdev, &cptpf->cap_flag);
/* Initialize AF-PF mailbox */
err = cptpf_afpf_mbox_init(cptpf);
if (err)
@@ -719,6 +725,7 @@ static void otx2_cptpf_remove(struct pci_dev *pdev)
/* Supported devices */
static const struct pci_device_id otx2_cpt_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, OTX2_CPT_PCI_PF_DEVICE_ID) },
+ { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, CN10K_CPT_PCI_PF_DEVICE_ID) },
{ 0, } /* end of table */
};
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf.h b/drivers/crypto/marvell/octeontx2/otx2_cptvf.h
index 4f0a169fddbd..4207e2236903 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf.h
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf.h
@@ -19,11 +19,14 @@ struct otx2_cptvf_dev {
struct otx2_mbox pfvf_mbox;
struct work_struct pfvf_mbox_work;
struct workqueue_struct *pfvf_mbox_wq;
+ void *bbuf_base;
+ unsigned long cap_flag;
};
irqreturn_t otx2_cptvf_pfvf_mbox_intr(int irq, void *arg);
void otx2_cptvf_pfvf_mbox_handler(struct work_struct *work);
int otx2_cptvf_send_eng_grp_num_msg(struct otx2_cptvf_dev *cptvf, int eng_type);
int otx2_cptvf_send_kvf_limits_msg(struct otx2_cptvf_dev *cptvf);
+int otx2_cpt_mbox_bbuf_init(struct otx2_cptvf_dev *cptvf, struct pci_dev *pdev);
#endif /* __OTX2_CPTVF_H */
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
index 47f378731024..5178e0688d75 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf_main.c
@@ -7,7 +7,7 @@
#include "otx2_cptvf_algs.h"
#include <rvu_reg.h>
-#define OTX2_CPTVF_DRV_NAME "octeontx2-cptvf"
+#define OTX2_CPTVF_DRV_NAME "rvu_cptvf"
static void cptvf_enable_pfvf_mbox_intrs(struct otx2_cptvf_dev *cptvf)
{
@@ -70,6 +70,8 @@ static int cptvf_register_interrupts(struct otx2_cptvf_dev *cptvf)
static int cptvf_pfvf_mbox_init(struct otx2_cptvf_dev *cptvf)
{
+ struct pci_dev *pdev = cptvf->pdev;
+ resource_size_t offset, size;
int ret;
cptvf->pfvf_mbox_wq = alloc_workqueue("cpt_pfvf_mailbox",
@@ -78,14 +80,39 @@ static int cptvf_pfvf_mbox_init(struct otx2_cptvf_dev *cptvf)
if (!cptvf->pfvf_mbox_wq)
return -ENOMEM;
+ if (test_bit(CN10K_MBOX, &cptvf->cap_flag)) {
+ /* For cn10k platform, VF mailbox region is in its BAR2
+ * register space
+ */
+ cptvf->pfvf_mbox_base = cptvf->reg_base +
+ CN10K_CPT_VF_MBOX_REGION;
+ } else {
+ offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
+ size = pci_resource_len(pdev, PCI_MBOX_BAR_NUM);
+ /* Map PF-VF mailbox memory */
+ cptvf->pfvf_mbox_base = devm_ioremap_wc(&pdev->dev, offset,
+ size);
+ if (!cptvf->pfvf_mbox_base) {
+ dev_err(&pdev->dev, "Unable to map BAR4\n");
+ ret = -ENOMEM;
+ goto free_wqe;
+ }
+ }
+
ret = otx2_mbox_init(&cptvf->pfvf_mbox, cptvf->pfvf_mbox_base,
- cptvf->pdev, cptvf->reg_base, MBOX_DIR_VFPF, 1);
+ pdev, cptvf->reg_base, MBOX_DIR_VFPF, 1);
if (ret)
goto free_wqe;
+ ret = otx2_cpt_mbox_bbuf_init(cptvf, pdev);
+ if (ret)
+ goto destroy_mbox;
+
INIT_WORK(&cptvf->pfvf_mbox_work, otx2_cptvf_pfvf_mbox_handler);
return 0;
+destroy_mbox:
+ otx2_mbox_destroy(&cptvf->pfvf_mbox);
free_wqe:
destroy_workqueue(cptvf->pfvf_mbox_wq);
return ret;
@@ -305,7 +332,6 @@ static int otx2_cptvf_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct device *dev = &pdev->dev;
- resource_size_t offset, size;
struct otx2_cptvf_dev *cptvf;
int ret;
@@ -337,15 +363,7 @@ static int otx2_cptvf_probe(struct pci_dev *pdev,
cptvf->reg_base = pcim_iomap_table(pdev)[PCI_PF_REG_BAR_NUM];
- offset = pci_resource_start(pdev, PCI_MBOX_BAR_NUM);
- size = pci_resource_len(pdev, PCI_MBOX_BAR_NUM);
- /* Map PF-VF mailbox memory */
- cptvf->pfvf_mbox_base = devm_ioremap_wc(dev, offset, size);
- if (!cptvf->pfvf_mbox_base) {
- dev_err(&pdev->dev, "Unable to map BAR4\n");
- ret = -ENODEV;
- goto clear_drvdata;
- }
+ otx2_cpt_set_hw_caps(pdev, &cptvf->cap_flag);
/* Initialize PF<=>VF mailbox */
ret = cptvf_pfvf_mbox_init(cptvf);
if (ret)
@@ -392,6 +410,7 @@ static void otx2_cptvf_remove(struct pci_dev *pdev)
/* Supported devices */
static const struct pci_device_id otx2_cptvf_id_table[] = {
{PCI_VDEVICE(CAVIUM, OTX2_CPT_PCI_VF_DEVICE_ID), 0},
+ {PCI_VDEVICE(CAVIUM, CN10K_CPT_PCI_VF_DEVICE_ID), 0},
{ 0, } /* end of table */
};
@@ -405,6 +424,6 @@ static struct pci_driver otx2_cptvf_pci_driver = {
module_pci_driver(otx2_cptvf_pci_driver);
MODULE_AUTHOR("Marvell");
-MODULE_DESCRIPTION("Marvell OcteonTX2 CPT Virtual Function Driver");
+MODULE_DESCRIPTION("Marvell RVU CPT Virtual Function Driver");
MODULE_LICENSE("GPL v2");
MODULE_DEVICE_TABLE(pci, otx2_cptvf_id_table);
diff --git a/drivers/crypto/marvell/octeontx2/otx2_cptvf_mbox.c b/drivers/crypto/marvell/octeontx2/otx2_cptvf_mbox.c
index 5d73b711cba6..02cb9e44afd8 100644
--- a/drivers/crypto/marvell/octeontx2/otx2_cptvf_mbox.c
+++ b/drivers/crypto/marvell/octeontx2/otx2_cptvf_mbox.c
@@ -5,6 +5,48 @@
#include "otx2_cptvf.h"
#include <rvu_reg.h>
+int otx2_cpt_mbox_bbuf_init(struct otx2_cptvf_dev *cptvf, struct pci_dev *pdev)
+{
+ struct otx2_mbox_dev *mdev;
+ struct otx2_mbox *otx2_mbox;
+
+ cptvf->bbuf_base = devm_kmalloc(&pdev->dev, MBOX_SIZE, GFP_KERNEL);
+ if (!cptvf->bbuf_base)
+ return -ENOMEM;
+ /*
+ * Overwrite mbox mbase to point to bounce buffer, so that PF/VF
+ * prepare all mbox messages in bounce buffer instead of directly
+ * in hw mbox memory.
+ */
+ otx2_mbox = &cptvf->pfvf_mbox;
+ mdev = &otx2_mbox->dev[0];
+ mdev->mbase = cptvf->bbuf_base;
+
+ return 0;
+}
+
+static void otx2_cpt_sync_mbox_bbuf(struct otx2_mbox *mbox, int devid)
+{
+ u16 msgs_offset = ALIGN(sizeof(struct mbox_hdr), MBOX_MSG_ALIGN);
+ void *hw_mbase = mbox->hwbase + (devid * MBOX_SIZE);
+ struct otx2_mbox_dev *mdev = &mbox->dev[devid];
+ struct mbox_hdr *hdr;
+ u64 msg_size;
+
+ if (mdev->mbase == hw_mbase)
+ return;
+
+ hdr = hw_mbase + mbox->rx_start;
+ msg_size = hdr->msg_size;
+
+ if (msg_size > mbox->rx_size - msgs_offset)
+ msg_size = mbox->rx_size - msgs_offset;
+
+ /* Copy mbox messages from mbox memory to bounce buffer */
+ memcpy(mdev->mbase + mbox->rx_start,
+ hw_mbase + mbox->rx_start, msg_size + msgs_offset);
+}
+
irqreturn_t otx2_cptvf_pfvf_mbox_intr(int __always_unused irq, void *arg)
{
struct otx2_cptvf_dev *cptvf = arg;
@@ -106,6 +148,7 @@ void otx2_cptvf_pfvf_mbox_handler(struct work_struct *work)
cptvf = container_of(work, struct otx2_cptvf_dev, pfvf_mbox_work);
pfvf_mbox = &cptvf->pfvf_mbox;
+ otx2_cpt_sync_mbox_bbuf(pfvf_mbox, 0);
mdev = &pfvf_mbox->dev[0];
rsp_hdr = (struct mbox_hdr *)(mdev->mbase + pfvf_mbox->rx_start);
if (rsp_hdr->num_msgs == 0)
--
2.29.0
