1 files changed, 0 insertions, 348 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c b/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c
deleted file mode 100644
index 388e58bcbcaf..000000000000
--- a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c
+++ /dev/null
@@ -1,348 +0,0 @@
-// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
-/* Copyright(c) 2015 - 2021 Intel Corporation */
-#include <linux/bitfield.h>
-#include <linux/spinlock.h>
-#include <linux/types.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_pf_capabilities_msg_provider, /* ADF_VF2PF_BLKMSG_REQ_CAP_SUMMARY */
-	adf_pf_ring_to_svc_msg_provider,  /* ADF_VF2PF_BLKMSG_REQ_RING_SVC_MAP */
-};
-
-/**
- * adf_send_pf2vf_msg() - send PF to VF message
- * @accel_dev:	Pointer to acceleration device
- * @vf_nr:	VF number to which the message will be sent
- * @msg:	Message to send
- *
- * This function allows the PF to send a message to a specific VF.
- *
- * Return: 0 on success, error code otherwise.
- */
-int adf_send_pf2vf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr, struct pfvf_message msg)
-{
-	struct adf_pfvf_ops *pfvf_ops = GET_PFVF_OPS(accel_dev);
-	u32 pfvf_offset = pfvf_ops->get_pf2vf_offset(vf_nr);
-
-	return pfvf_ops->send_msg(accel_dev, msg, pfvf_offset,
-				  &accel_dev->pf.vf_info[vf_nr].pf2vf_lock);
-}
-
-/**
- * adf_recv_vf2pf_msg() - receive a VF to PF message
- * @accel_dev:	Pointer to acceleration device
- * @vf_nr:	Number of the VF from where the message will be received
- *
- * This function allows the PF to receive a message from a specific VF.
- *
- * Return: a valid message on success, zero otherwise.
- */
-static struct pfvf_message adf_recv_vf2pf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr)
-{
-	struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr];
-	struct adf_pfvf_ops *pfvf_ops = GET_PFVF_OPS(accel_dev);
-	u32 pfvf_offset = pfvf_ops->get_vf2pf_offset(vf_nr);
-
-	return pfvf_ops->recv_msg(accel_dev, pfvf_offset, vf_info->vf_compat_ver);
-}
-
-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 + 1, 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 struct pfvf_message handle_rp_reset_req(struct adf_accel_dev *accel_dev, u8 vf_nr,
-					       struct pfvf_message req)
-{
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	struct pfvf_message resp = {
-		.type = ADF_PF2VF_MSGTYPE_RP_RESET_RESP,
-		.data = RPRESET_SUCCESS
-	};
-	u32 bank_number;
-	u32 rsvd_field;
-
-	bank_number = FIELD_GET(ADF_VF2PF_RNG_RESET_RP_MASK, req.data);
-	rsvd_field = FIELD_GET(ADF_VF2PF_RNG_RESET_RSVD_MASK, req.data);
-
-	dev_dbg(&GET_DEV(accel_dev),
-		"Ring Pair Reset Message received from VF%d for bank 0x%x\n",
-		vf_nr, bank_number);
-
-	if (!hw_data->ring_pair_reset || rsvd_field) {
-		dev_dbg(&GET_DEV(accel_dev),
-			"Ring Pair Reset for VF%d is not supported\n", vf_nr);
-		resp.data = RPRESET_NOT_SUPPORTED;
-		goto out;
-	}
-
-	if (bank_number >= hw_data->num_banks_per_vf) {
-		dev_err(&GET_DEV(accel_dev),
-			"Invalid bank number (0x%x) from VF%d for Ring Reset\n",
-			bank_number, vf_nr);
-		resp.data = RPRESET_INVAL_BANK;
-		goto out;
-	}
-
-	/* Convert the VF provided value to PF bank number */
-	bank_number = vf_nr * hw_data->num_banks_per_vf + bank_number;
-	if (hw_data->ring_pair_reset(accel_dev, bank_number)) {
-		dev_dbg(&GET_DEV(accel_dev),
-			"Ring pair reset for VF%d failure\n", vf_nr);
-		resp.data = RPRESET_TIMEOUT;
-		goto out;
-	}
-
-	dev_dbg(&GET_DEV(accel_dev),
-		"Ring pair reset for VF%d successfully\n", vf_nr);
-
-out:
-	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)
-{
-	struct adf_accel_vf_info *vf_info = &accel_dev->pf.vf_info[vf_nr];
-
-	switch (msg.type) {
-	case ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ:
-		{
-		u8 vf_compat_ver = msg.data;
-		u8 compat;
-
-		dev_dbg(&GET_DEV(accel_dev),
-			"VersionRequest received from VF%d (vers %d) to PF (vers %d)\n",
-			vf_nr, vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION);
-
-		if (vf_compat_ver == 0)
-			compat = ADF_PF2VF_VF_INCOMPATIBLE;
-		else if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION)
-			compat = ADF_PF2VF_VF_COMPATIBLE;
-		else
-			compat = ADF_PF2VF_VF_COMPAT_UNKNOWN;
-
-		vf_info->vf_compat_ver = vf_compat_ver;
-
-		resp->type = ADF_PF2VF_MSGTYPE_VERSION_RESP;
-		resp->data = FIELD_PREP(ADF_PF2VF_VERSION_RESP_VERS_MASK,
-					ADF_PFVF_COMPAT_THIS_VERSION) |
-			     FIELD_PREP(ADF_PF2VF_VERSION_RESP_RESULT_MASK, compat);
-		}
-		break;
-	case ADF_VF2PF_MSGTYPE_VERSION_REQ:
-		{
-		u8 compat;
-
-		dev_dbg(&GET_DEV(accel_dev),
-			"Legacy VersionRequest received from VF%d to PF (vers 1.1)\n",
-			vf_nr);
-
-		/* legacy driver, VF compat_ver is 0 */
-		vf_info->vf_compat_ver = 0;
-
-		/* PF always newer than legacy VF */
-		compat = ADF_PF2VF_VF_COMPATIBLE;
-
-		/* Set legacy major and minor version to the latest, 1.1 */
-		resp->type = ADF_PF2VF_MSGTYPE_VERSION_RESP;
-		resp->data = FIELD_PREP(ADF_PF2VF_VERSION_RESP_VERS_MASK, 0x11) |
-			     FIELD_PREP(ADF_PF2VF_VERSION_RESP_RESULT_MASK, compat);
-		}
-		break;
-	case ADF_VF2PF_MSGTYPE_INIT:
-		{
-		dev_dbg(&GET_DEV(accel_dev),
-			"Init message received from VF%d\n", vf_nr);
-		vf_info->init = true;
-		}
-		break;
-	case ADF_VF2PF_MSGTYPE_SHUTDOWN:
-		{
-		dev_dbg(&GET_DEV(accel_dev),
-			"Shutdown message received from VF%d\n", vf_nr);
-		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;
-	case ADF_VF2PF_MSGTYPE_RP_RESET:
-		*resp = handle_rp_reset_req(accel_dev, vf_nr, msg);
-		break;
-	default:
-		dev_dbg(&GET_DEV(accel_dev),
-			"Unknown message from VF%d (type 0x%.4x, data: 0x%.4x)\n",
-			vf_nr, msg.type, msg.data);
-		return -ENOMSG;
-	}
-
-	return 0;
-}
-
-bool adf_recv_and_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u32 vf_nr)
-{
-	struct pfvf_message req;
-	struct pfvf_message resp = {0};
-
-	req = adf_recv_vf2pf_msg(accel_dev, vf_nr);
-	if (!req.type)  /* Legacy or no message */
-		return true;
-
-	if (adf_handle_vf2pf_msg(accel_dev, vf_nr, req, &resp))
-		return false;
-
-	if (resp.type && adf_send_pf2vf_msg(accel_dev, vf_nr, resp))
-		dev_err(&GET_DEV(accel_dev),
-			"Failed to send response to VF%d\n", vf_nr);
-
-	return true;
-}
-
-/**
- * adf_enable_pf2vf_comms() - Function enables communication from pf to vf
- *
- * @accel_dev: Pointer to acceleration device virtual function.
- *
- * This function carries out the necessary steps to setup and start the PFVF
- * communication channel, if any.
- *
- * Return: 0 on success, error code otherwise.
- */
-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;
-}
-EXPORT_SYMBOL_GPL(adf_enable_pf2vf_comms);