select CRYPTO_SHA512
select CRYPTO_LIB_AES
select FW_LOADER
+ select CRC8
config CRYPTO_DEV_QAT_DH895xCC
tristate "Support for Intel(R) DH895xCC"
enum pf2vf_msgtype {
ADF_PF2VF_MSGTYPE_RESTARTING = 0x01,
ADF_PF2VF_MSGTYPE_VERSION_RESP = 0x02,
+ ADF_PF2VF_MSGTYPE_BLKMSG_RESP = 0x03,
};
/* VF->PF messages */
ADF_VF2PF_MSGTYPE_SHUTDOWN = 0x04,
ADF_VF2PF_MSGTYPE_VERSION_REQ = 0x05,
ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ = 0x06,
+ ADF_VF2PF_MSGTYPE_LARGE_BLOCK_REQ = 0x07,
+ ADF_VF2PF_MSGTYPE_MEDIUM_BLOCK_REQ = 0x08,
+ ADF_VF2PF_MSGTYPE_SMALL_BLOCK_REQ = 0x09,
};
/* VF/PF compatibility version. */
ADF_PF2VF_VF_COMPAT_UNKNOWN = 0x03,
};
+/* PF->VF Block Responses */
+#define ADF_PF2VF_BLKMSG_RESP_TYPE_MASK GENMASK(1, 0)
+#define ADF_PF2VF_BLKMSG_RESP_DATA_MASK GENMASK(9, 2)
+
+enum pf2vf_blkmsg_resp_type {
+ ADF_PF2VF_BLKMSG_RESP_TYPE_DATA = 0x00,
+ ADF_PF2VF_BLKMSG_RESP_TYPE_CRC = 0x01,
+ ADF_PF2VF_BLKMSG_RESP_TYPE_ERROR = 0x02,
+};
+
+/* PF->VF Block Error Code */
+enum pf2vf_blkmsg_error {
+ ADF_PF2VF_INVALID_BLOCK_TYPE = 0x00,
+ ADF_PF2VF_INVALID_BYTE_NUM_REQ = 0x01,
+ ADF_PF2VF_PAYLOAD_TRUNCATED = 0x02,
+ ADF_PF2VF_UNSPECIFIED_ERROR = 0x03,
+};
+
+/* VF->PF Block Requests */
+#define ADF_VF2PF_LARGE_BLOCK_TYPE_MASK GENMASK(1, 0)
+#define ADF_VF2PF_LARGE_BLOCK_BYTE_MASK GENMASK(8, 2)
+#define ADF_VF2PF_MEDIUM_BLOCK_TYPE_MASK GENMASK(2, 0)
+#define ADF_VF2PF_MEDIUM_BLOCK_BYTE_MASK GENMASK(8, 3)
+#define ADF_VF2PF_SMALL_BLOCK_TYPE_MASK GENMASK(3, 0)
+#define ADF_VF2PF_SMALL_BLOCK_BYTE_MASK GENMASK(8, 4)
+#define ADF_VF2PF_BLOCK_CRC_REQ_MASK BIT(9)
+
+/* PF->VF Block Request Types
+ * 0..15 - 32 byte message
+ * 16..23 - 64 byte message
+ * 24..27 - 128 byte message
+ */
+/* No block messages as of yet */
+
+#define ADF_VF2PF_SMALL_BLOCK_TYPE_MAX \
+ (FIELD_MAX(ADF_VF2PF_SMALL_BLOCK_TYPE_MASK))
+
+#define ADF_VF2PF_MEDIUM_BLOCK_TYPE_MAX \
+ (FIELD_MAX(ADF_VF2PF_MEDIUM_BLOCK_TYPE_MASK) + \
+ ADF_VF2PF_SMALL_BLOCK_TYPE_MAX + 1)
+
+#define ADF_VF2PF_LARGE_BLOCK_TYPE_MAX \
+ (FIELD_MAX(ADF_VF2PF_LARGE_BLOCK_TYPE_MASK) + \
+ ADF_VF2PF_MEDIUM_BLOCK_TYPE_MAX)
+
+#define ADF_VF2PF_SMALL_BLOCK_BYTE_MAX \
+ FIELD_MAX(ADF_VF2PF_SMALL_BLOCK_BYTE_MASK)
+
+#define ADF_VF2PF_MEDIUM_BLOCK_BYTE_MAX \
+ FIELD_MAX(ADF_VF2PF_MEDIUM_BLOCK_BYTE_MASK)
+
+#define ADF_VF2PF_LARGE_BLOCK_BYTE_MAX \
+ FIELD_MAX(ADF_VF2PF_LARGE_BLOCK_BYTE_MASK)
+
+struct pfvf_blkmsg_header {
+ u8 version;
+ u8 payload_size;
+} __packed;
+
+#define ADF_PFVF_BLKMSG_HEADER_SIZE (sizeof(struct pfvf_blkmsg_header))
+#define ADF_PFVF_BLKMSG_PAYLOAD_SIZE(blkmsg) (sizeof(blkmsg) - \
+ ADF_PFVF_BLKMSG_HEADER_SIZE)
+#define ADF_PFVF_BLKMSG_MSG_SIZE(blkmsg) (ADF_PFVF_BLKMSG_HEADER_SIZE + \
+ (blkmsg)->hdr.payload_size)
+#define ADF_PFVF_BLKMSG_MSG_MAX_SIZE 128
+
+/* PF->VF Block message header bytes */
+#define ADF_PFVF_BLKMSG_VER_BYTE 0
+#define ADF_PFVF_BLKMSG_LEN_BYTE 1
+
#endif /* ADF_PFVF_MSG_H */
void adf_pf2vf_notify_restarting(struct adf_accel_dev *accel_dev);
+typedef int (*adf_pf2vf_blkmsg_provider)(struct adf_accel_dev *accel_dev,
+ u8 *buffer, u8 compat);
+
#endif /* ADF_PFVF_PF_MSG_H */
#include "adf_accel_devices.h"
#include "adf_common_drv.h"
#include "adf_pfvf_msg.h"
+#include "adf_pfvf_pf_msg.h"
#include "adf_pfvf_pf_proto.h"
+#include "adf_pfvf_utils.h"
+
+typedef u8 (*pf2vf_blkmsg_data_getter_fn)(u8 const *blkmsg, u8 byte);
+
+static const adf_pf2vf_blkmsg_provider pf2vf_blkmsg_providers[] = {
+ NULL, /* no message type defined for value 0 */
+ NULL, /* no message type defined for value 1 */
+};
/**
* adf_send_pf2vf_msg() - send PF to VF message
return pfvf_ops->recv_msg(accel_dev, pfvf_offset);
}
+static adf_pf2vf_blkmsg_provider get_blkmsg_response_provider(u8 type)
+{
+ if (type >= ARRAY_SIZE(pf2vf_blkmsg_providers))
+ return NULL;
+
+ return pf2vf_blkmsg_providers[type];
+}
+
+/* Byte pf2vf_blkmsg_data_getter_fn callback */
+static u8 adf_pf2vf_blkmsg_get_byte(u8 const *blkmsg, u8 index)
+{
+ return blkmsg[index];
+}
+
+/* CRC pf2vf_blkmsg_data_getter_fn callback */
+static u8 adf_pf2vf_blkmsg_get_crc(u8 const *blkmsg, u8 count)
+{
+ /* count is 0-based, turn it into a length */
+ return adf_pfvf_calc_blkmsg_crc(blkmsg, count + 1);
+}
+
+static int adf_pf2vf_blkmsg_get_data(struct adf_accel_vf_info *vf_info,
+ u8 type, u8 byte, u8 max_size, u8 *data,
+ pf2vf_blkmsg_data_getter_fn data_getter)
+{
+ u8 blkmsg[ADF_PFVF_BLKMSG_MSG_MAX_SIZE] = { 0 };
+ struct adf_accel_dev *accel_dev = vf_info->accel_dev;
+ adf_pf2vf_blkmsg_provider provider;
+ u8 msg_size;
+
+ provider = get_blkmsg_response_provider(type);
+
+ if (unlikely(!provider)) {
+ pr_err("QAT: No registered provider for message %d\n", type);
+ *data = ADF_PF2VF_INVALID_BLOCK_TYPE;
+ return -EINVAL;
+ }
+
+ if (unlikely((*provider)(accel_dev, blkmsg, vf_info->vf_compat_ver))) {
+ pr_err("QAT: unknown error from provider for message %d\n", type);
+ *data = ADF_PF2VF_UNSPECIFIED_ERROR;
+ return -EINVAL;
+ }
+
+ msg_size = ADF_PFVF_BLKMSG_HEADER_SIZE + blkmsg[ADF_PFVF_BLKMSG_LEN_BYTE];
+
+ if (unlikely(msg_size >= max_size)) {
+ pr_err("QAT: Invalid size %d provided for message type %d\n",
+ msg_size, type);
+ *data = ADF_PF2VF_PAYLOAD_TRUNCATED;
+ return -EINVAL;
+ }
+
+ if (unlikely(byte >= msg_size)) {
+ pr_err("QAT: Out-of-bound byte number %d (msg size %d)\n",
+ byte, msg_size);
+ *data = ADF_PF2VF_INVALID_BYTE_NUM_REQ;
+ return -EINVAL;
+ }
+
+ *data = data_getter(blkmsg, byte);
+ return 0;
+}
+
+static struct pfvf_message handle_blkmsg_req(struct adf_accel_vf_info *vf_info,
+ struct pfvf_message req)
+{
+ u8 resp_type = ADF_PF2VF_BLKMSG_RESP_TYPE_ERROR;
+ struct pfvf_message resp = { 0 };
+ u8 resp_data = 0;
+ u8 blk_type;
+ u8 blk_byte;
+ u8 byte_max;
+
+ switch (req.type) {
+ case ADF_VF2PF_MSGTYPE_LARGE_BLOCK_REQ:
+ blk_type = FIELD_GET(ADF_VF2PF_LARGE_BLOCK_TYPE_MASK, req.data)
+ + ADF_VF2PF_MEDIUM_BLOCK_TYPE_MAX + 1;
+ blk_byte = FIELD_GET(ADF_VF2PF_LARGE_BLOCK_BYTE_MASK, req.data);
+ byte_max = ADF_VF2PF_LARGE_BLOCK_BYTE_MAX;
+ break;
+ case ADF_VF2PF_MSGTYPE_MEDIUM_BLOCK_REQ:
+ blk_type = FIELD_GET(ADF_VF2PF_MEDIUM_BLOCK_TYPE_MASK, req.data)
+ + ADF_VF2PF_SMALL_BLOCK_TYPE_MAX + 1;
+ blk_byte = FIELD_GET(ADF_VF2PF_MEDIUM_BLOCK_BYTE_MASK, req.data);
+ byte_max = ADF_VF2PF_MEDIUM_BLOCK_BYTE_MAX;
+ break;
+ case ADF_VF2PF_MSGTYPE_SMALL_BLOCK_REQ:
+ blk_type = FIELD_GET(ADF_VF2PF_SMALL_BLOCK_TYPE_MASK, req.data);
+ blk_byte = FIELD_GET(ADF_VF2PF_SMALL_BLOCK_BYTE_MASK, req.data);
+ byte_max = ADF_VF2PF_SMALL_BLOCK_BYTE_MAX;
+ break;
+ }
+
+ /* Is this a request for CRC or data? */
+ if (FIELD_GET(ADF_VF2PF_BLOCK_CRC_REQ_MASK, req.data)) {
+ dev_dbg(&GET_DEV(vf_info->accel_dev),
+ "BlockMsg of type %d for CRC over %d bytes received from VF%d\n",
+ blk_type, blk_byte, vf_info->vf_nr);
+
+ if (!adf_pf2vf_blkmsg_get_data(vf_info, blk_type, blk_byte,
+ byte_max, &resp_data,
+ adf_pf2vf_blkmsg_get_crc))
+ resp_type = ADF_PF2VF_BLKMSG_RESP_TYPE_CRC;
+ } else {
+ dev_dbg(&GET_DEV(vf_info->accel_dev),
+ "BlockMsg of type %d for data byte %d received from VF%d\n",
+ blk_type, blk_byte, vf_info->vf_nr);
+
+ if (!adf_pf2vf_blkmsg_get_data(vf_info, blk_type, blk_byte,
+ byte_max, &resp_data,
+ adf_pf2vf_blkmsg_get_byte))
+ resp_type = ADF_PF2VF_BLKMSG_RESP_TYPE_DATA;
+ }
+
+ resp.type = ADF_PF2VF_MSGTYPE_BLKMSG_RESP;
+ resp.data = FIELD_PREP(ADF_PF2VF_BLKMSG_RESP_TYPE_MASK, resp_type) |
+ FIELD_PREP(ADF_PF2VF_BLKMSG_RESP_DATA_MASK, resp_data);
+
+ return resp;
+}
+
static int adf_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr,
struct pfvf_message msg, struct pfvf_message *resp)
{
vf_info->init = false;
}
break;
+ case ADF_VF2PF_MSGTYPE_LARGE_BLOCK_REQ:
+ case ADF_VF2PF_MSGTYPE_MEDIUM_BLOCK_REQ:
+ case ADF_VF2PF_MSGTYPE_SMALL_BLOCK_REQ:
+ *resp = handle_blkmsg_req(vf_info, msg);
+ break;
default:
dev_dbg(&GET_DEV(accel_dev),
"Unknown message from VF%d (type 0x%.4x, data: 0x%.4x)\n",
*/
int adf_enable_pf2vf_comms(struct adf_accel_dev *accel_dev)
{
+ adf_pfvf_crc_init();
spin_lock_init(&accel_dev->pf.vf2pf_ints_lock);
return 0;
// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
/* Copyright(c) 2021 Intel Corporation */
+#include <linux/crc8.h>
#include <linux/pci.h>
#include <linux/types.h>
#include "adf_accel_devices.h"
#include "adf_pfvf_msg.h"
#include "adf_pfvf_utils.h"
+/* CRC Calculation */
+DECLARE_CRC8_TABLE(pfvf_crc8_table);
+#define ADF_PFVF_CRC8_POLYNOMIAL 0x97
+
+void adf_pfvf_crc_init(void)
+{
+ crc8_populate_msb(pfvf_crc8_table, ADF_PFVF_CRC8_POLYNOMIAL);
+}
+
+u8 adf_pfvf_calc_blkmsg_crc(u8 const *buf, u8 buf_len)
+{
+ return crc8(pfvf_crc8_table, buf, buf_len, CRC8_INIT_VALUE);
+}
+
static bool set_value_on_csr_msg(struct adf_accel_dev *accel_dev, u32 *csr_msg,
u32 value, const struct pfvf_field_format *fmt)
{
#define ADF_PFVF_MSG_ACK_DELAY_US 4
#define ADF_PFVF_MSG_ACK_MAX_DELAY_US (1 * USEC_PER_SEC)
+u8 adf_pfvf_calc_blkmsg_crc(u8 const *buf, u8 buf_len);
+void adf_pfvf_crc_init(void);
+
struct pfvf_field_format {
u8 offset;
u32 mask;
// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
/* Copyright(c) 2015 - 2021 Intel Corporation */
+#include <linux/bitfield.h>
#include <linux/completion.h>
+#include <linux/minmax.h>
#include <linux/types.h>
#include "adf_accel_devices.h"
#include "adf_common_drv.h"
#include "adf_pfvf_msg.h"
+#include "adf_pfvf_utils.h"
#include "adf_pfvf_vf_msg.h"
#include "adf_pfvf_vf_proto.h"
return 0;
}
+static int adf_vf2pf_blkmsg_data_req(struct adf_accel_dev *accel_dev, bool crc,
+ u8 *type, u8 *data)
+{
+ struct pfvf_message req = { 0 };
+ struct pfvf_message resp = { 0 };
+ u8 blk_type;
+ u8 blk_byte;
+ u8 msg_type;
+ u8 max_data;
+ int err;
+
+ /* Convert the block type to {small, medium, large} size category */
+ if (*type <= ADF_VF2PF_SMALL_BLOCK_TYPE_MAX) {
+ msg_type = ADF_VF2PF_MSGTYPE_SMALL_BLOCK_REQ;
+ blk_type = FIELD_PREP(ADF_VF2PF_SMALL_BLOCK_TYPE_MASK, *type);
+ blk_byte = FIELD_PREP(ADF_VF2PF_SMALL_BLOCK_BYTE_MASK, *data);
+ max_data = ADF_VF2PF_SMALL_BLOCK_BYTE_MAX;
+ } else if (*type <= ADF_VF2PF_MEDIUM_BLOCK_TYPE_MAX) {
+ msg_type = ADF_VF2PF_MSGTYPE_MEDIUM_BLOCK_REQ;
+ blk_type = FIELD_PREP(ADF_VF2PF_MEDIUM_BLOCK_TYPE_MASK,
+ *type - ADF_VF2PF_SMALL_BLOCK_TYPE_MAX);
+ blk_byte = FIELD_PREP(ADF_VF2PF_MEDIUM_BLOCK_BYTE_MASK, *data);
+ max_data = ADF_VF2PF_MEDIUM_BLOCK_BYTE_MAX;
+ } else if (*type <= ADF_VF2PF_LARGE_BLOCK_TYPE_MAX) {
+ msg_type = ADF_VF2PF_MSGTYPE_LARGE_BLOCK_REQ;
+ blk_type = FIELD_PREP(ADF_VF2PF_LARGE_BLOCK_TYPE_MASK,
+ *type - ADF_VF2PF_MEDIUM_BLOCK_TYPE_MAX);
+ blk_byte = FIELD_PREP(ADF_VF2PF_LARGE_BLOCK_BYTE_MASK, *data);
+ max_data = ADF_VF2PF_LARGE_BLOCK_BYTE_MAX;
+ } else {
+ dev_err(&GET_DEV(accel_dev), "Invalid message type %u\n", *type);
+ return -EINVAL;
+ }
+
+ /* Sanity check */
+ if (*data > max_data) {
+ dev_err(&GET_DEV(accel_dev),
+ "Invalid byte %s %u for message type %u\n",
+ crc ? "count" : "index", *data, *type);
+ return -EINVAL;
+ }
+
+ /* Build the block message */
+ req.type = msg_type;
+ req.data = blk_type | blk_byte | FIELD_PREP(ADF_VF2PF_BLOCK_CRC_REQ_MASK, crc);
+
+ err = adf_send_vf2pf_req(accel_dev, req, &resp);
+ if (err)
+ return err;
+
+ *type = FIELD_GET(ADF_PF2VF_BLKMSG_RESP_TYPE_MASK, resp.data);
+ *data = FIELD_GET(ADF_PF2VF_BLKMSG_RESP_DATA_MASK, resp.data);
+
+ return 0;
+}
+
+static int adf_vf2pf_blkmsg_get_byte(struct adf_accel_dev *accel_dev, u8 type,
+ u8 index, u8 *data)
+{
+ int ret;
+
+ ret = adf_vf2pf_blkmsg_data_req(accel_dev, false, &type, &index);
+ if (ret < 0)
+ return ret;
+
+ if (unlikely(type != ADF_PF2VF_BLKMSG_RESP_TYPE_DATA)) {
+ dev_err(&GET_DEV(accel_dev),
+ "Unexpected BLKMSG response type %u, byte 0x%x\n",
+ type, index);
+ return -EFAULT;
+ }
+
+ *data = index;
+ return 0;
+}
+
+static int adf_vf2pf_blkmsg_get_crc(struct adf_accel_dev *accel_dev, u8 type,
+ u8 bytes, u8 *crc)
+{
+ int ret;
+
+ /* The count of bytes refers to a length, however shift it to a 0-based
+ * count to avoid overflows. Thus, a request for 0 bytes is technically
+ * valid.
+ */
+ --bytes;
+
+ ret = adf_vf2pf_blkmsg_data_req(accel_dev, true, &type, &bytes);
+ if (ret < 0)
+ return ret;
+
+ if (unlikely(type != ADF_PF2VF_BLKMSG_RESP_TYPE_CRC)) {
+ dev_err(&GET_DEV(accel_dev),
+ "Unexpected CRC BLKMSG response type %u, crc 0x%x\n",
+ type, bytes);
+ return -EFAULT;
+ }
+
+ *crc = bytes;
+ return 0;
+}
+
+/**
+ * adf_send_vf2pf_blkmsg_req() - retrieve block message
+ * @accel_dev: Pointer to acceleration VF device.
+ * @type: The block message type, see adf_pfvf_msg.h for allowed values
+ * @buffer: input buffer where to place the received data
+ * @buffer_len: buffer length as input, the amount of written bytes on output
+ *
+ * Request a message of type 'type' over the block message transport.
+ * This function will send the required amount block message requests and
+ * return the overall content back to the caller through the provided buffer.
+ * The buffer should be large enough to contain the requested message type,
+ * otherwise the response will be truncated.
+ *
+ * Return: 0 on success, error code otherwise.
+ */
+int adf_send_vf2pf_blkmsg_req(struct adf_accel_dev *accel_dev, u8 type,
+ u8 *buffer, unsigned int *buffer_len)
+{
+ unsigned int index;
+ unsigned int msg_len;
+ int ret;
+ u8 remote_crc;
+ u8 local_crc;
+
+ if (unlikely(type > ADF_VF2PF_LARGE_BLOCK_TYPE_MAX)) {
+ dev_err(&GET_DEV(accel_dev), "Invalid block message type %d\n",
+ type);
+ return -EINVAL;
+ }
+
+ if (unlikely(*buffer_len < ADF_PFVF_BLKMSG_HEADER_SIZE)) {
+ dev_err(&GET_DEV(accel_dev),
+ "Buffer size too small for a block message\n");
+ return -EINVAL;
+ }
+
+ ret = adf_vf2pf_blkmsg_get_byte(accel_dev, type,
+ ADF_PFVF_BLKMSG_VER_BYTE,
+ &buffer[ADF_PFVF_BLKMSG_VER_BYTE]);
+ if (unlikely(ret))
+ return ret;
+
+ if (unlikely(!buffer[ADF_PFVF_BLKMSG_VER_BYTE])) {
+ dev_err(&GET_DEV(accel_dev),
+ "Invalid version 0 received for block request %u", type);
+ return -EFAULT;
+ }
+
+ ret = adf_vf2pf_blkmsg_get_byte(accel_dev, type,
+ ADF_PFVF_BLKMSG_LEN_BYTE,
+ &buffer[ADF_PFVF_BLKMSG_LEN_BYTE]);
+ if (unlikely(ret))
+ return ret;
+
+ if (unlikely(!buffer[ADF_PFVF_BLKMSG_LEN_BYTE])) {
+ dev_err(&GET_DEV(accel_dev),
+ "Invalid size 0 received for block request %u", type);
+ return -EFAULT;
+ }
+
+ /* We need to pick the minimum since there is no way to request a
+ * specific version. As a consequence any scenario is possible:
+ * - PF has a newer (longer) version which doesn't fit in the buffer
+ * - VF expects a newer (longer) version, so we must not ask for
+ * bytes in excess
+ * - PF and VF share the same version, no problem
+ */
+ msg_len = ADF_PFVF_BLKMSG_HEADER_SIZE + buffer[ADF_PFVF_BLKMSG_LEN_BYTE];
+ msg_len = min(*buffer_len, msg_len);
+
+ /* Get the payload */
+ for (index = ADF_PFVF_BLKMSG_HEADER_SIZE; index < msg_len; index++) {
+ ret = adf_vf2pf_blkmsg_get_byte(accel_dev, type, index,
+ &buffer[index]);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ ret = adf_vf2pf_blkmsg_get_crc(accel_dev, type, msg_len, &remote_crc);
+ if (unlikely(ret))
+ return ret;
+
+ local_crc = adf_pfvf_calc_blkmsg_crc(buffer, msg_len);
+ if (unlikely(local_crc != remote_crc)) {
+ dev_err(&GET_DEV(accel_dev),
+ "CRC error on msg type %d. Local %02X, remote %02X\n",
+ type, local_crc, remote_crc);
+ return -EIO;
+ }
+
+ *buffer_len = msg_len;
+ return 0;
+}
+
static bool adf_handle_pf2vf_msg(struct adf_accel_dev *accel_dev,
struct pfvf_message msg)
{
adf_pf2vf_handle_pf_restarting(accel_dev);
return false;
case ADF_PF2VF_MSGTYPE_VERSION_RESP:
+ case ADF_PF2VF_MSGTYPE_BLKMSG_RESP:
dev_dbg(&GET_DEV(accel_dev),
"Response Message received from PF (type 0x%.4x, data 0x%.4x)\n",
msg.type, msg.data);
/**
* adf_enable_vf2pf_comms() - Function enables communication from vf to pf
*
- * @accel_dev: Pointer to acceleration device virtual function.
+ * @accel_dev: Pointer to acceleration device virtual function.
*
* Return: 0 on success, error code otherwise.
*/
int adf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev)
{
+ adf_pfvf_crc_init();
adf_enable_pf2vf_interrupts(accel_dev);
return adf_vf2pf_request_version(accel_dev);
}
int adf_send_vf2pf_msg(struct adf_accel_dev *accel_dev, struct pfvf_message msg);
int adf_send_vf2pf_req(struct adf_accel_dev *accel_dev, struct pfvf_message msg,
struct pfvf_message *resp);
+int adf_send_vf2pf_blkmsg_req(struct adf_accel_dev *accel_dev, u8 type,
+ u8 *buffer, unsigned int *buffer_len);
int adf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev);
#include "adf_cfg.h"
#include "adf_pfvf_pf_msg.h"
+#define ADF_VF2PF_RATELIMIT_INTERVAL 8
+#define ADF_VF2PF_RATELIMIT_BURST 130
+
static struct workqueue_struct *pf2vf_resp_wq;
struct adf_pf2vf_resp {
mutex_init(&vf_info->pf2vf_lock);
ratelimit_state_init(&vf_info->vf2pf_ratelimit,
- DEFAULT_RATELIMIT_INTERVAL,
- DEFAULT_RATELIMIT_BURST);
+ ADF_VF2PF_RATELIMIT_INTERVAL,
+ ADF_VF2PF_RATELIMIT_BURST);
}
/* Set Valid bits in AE Thread to PCIe Function Mapping */
projects / platform / kernel / linux-starfive.git / commitdiff