66c0ad1f3d
This commit fixes answer sent to physical device in
vf2pf communication.
Fixes: b17d16fb47 ("common/qat: add PF to VF communication")
Cc: stable@dpdk.org
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2021 Intel Corporation
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*/
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#include "qat_pf2vf.h"
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#include "adf_pf2vf_msg.h"
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#include <rte_cycles.h>
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int qat_pf2vf_exch_msg(struct qat_pci_device *qat_dev,
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struct qat_pf2vf_msg pf2vf_msg,
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int len, uint8_t *ret)
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{
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int i = 0;
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struct qat_pf2vf_dev *qat_pf2vf =
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qat_gen_config[qat_dev->qat_dev_gen].pf2vf_dev;
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void *pmisc_bar_addr = qat_dev->misc_bar_io_addr;
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uint32_t msg = 0, count = 0, val = 0;
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uint32_t vf_csr_off = qat_pf2vf->vf2pf_offset;
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uint32_t pf_csr_off = qat_pf2vf->pf2vf_offset;
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int type_shift = qat_pf2vf->pf2vf_type_shift;
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uint32_t type_mask = qat_pf2vf->pf2vf_type_mask;
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int blck_hdr_shift = qat_pf2vf->pf2vf_data_shift;
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int data_shift = blck_hdr_shift;
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switch (pf2vf_msg.msg_type) {
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case ADF_VF2PF_MSGTYPE_GET_SMALL_BLOCK_REQ:
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data_shift += ADF_VF2PF_SMALL_BLOCK_BYTE_NUM_SHIFT;
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break;
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case ADF_VF2PF_MSGTYPE_GET_MEDIUM_BLOCK_REQ:
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data_shift += ADF_VF2PF_MEDIUM_BLOCK_BYTE_NUM_SHIFT;
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break;
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case ADF_VF2PF_MSGTYPE_GET_LARGE_BLOCK_REQ:
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data_shift += ADF_VF2PF_LARGE_BLOCK_BYTE_NUM_SHIFT;
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break;
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}
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if ((pf2vf_msg.msg_type & type_mask) != pf2vf_msg.msg_type) {
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QAT_LOG(ERR, "PF2VF message type 0x%X out of range\n",
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pf2vf_msg.msg_type);
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return -EINVAL;
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}
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for (; i < len; i++) {
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count = 0;
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if (len == 1) {
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msg = (pf2vf_msg.msg_type << type_shift) |
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(pf2vf_msg.msg_data << (data_shift));
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} else
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msg = (pf2vf_msg.msg_type << type_shift) |
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((pf2vf_msg.msg_data + i) << (data_shift));
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if (pf2vf_msg.block_hdr > 0)
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msg |= pf2vf_msg.block_hdr << blck_hdr_shift;
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msg |= ADF_PFVF_INT | ADF_PFVF_MSGORIGIN_SYSTEM;
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ADF_CSR_WR(pmisc_bar_addr, vf_csr_off, msg);
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/*
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* Wait for confirmation from remote that it received
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* the message
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*/
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do {
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rte_delay_us_sleep(ADF_IOV_MSG_ACK_DELAY_US * 2);
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val = ADF_CSR_RD(pmisc_bar_addr, vf_csr_off);
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} while ((val & ADF_PFVF_INT) &&
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(++count < ADF_IOV_MSG_ACK_MAX_RETRY));
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if (val & ADF_PFVF_INT) {
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QAT_LOG(ERR, "ACK not received from remote\n");
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return -EIO;
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}
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uint32_t pf_val = ADF_CSR_RD(pmisc_bar_addr, pf_csr_off);
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msg &= ~ADF_PFVF_INT;
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ADF_CSR_WR(pmisc_bar_addr, pf_csr_off, msg);
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*(ret + i) = (uint8_t)(pf_val >> (pf2vf_msg.block_hdr > 0 ?
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10 : 8) & 0xff);
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}
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return 0;
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}
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