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dpaa2_sec_dpseci.c
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dpaa2_sec_dpseci.c
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/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
* Copyright 2016-2020 NXP
*
*/
#include <time.h>
#include <net/if.h>
#include <unistd.h>
#include <rte_ip.h>
#include <rte_mbuf.h>
#include <rte_cryptodev.h>
#include <rte_malloc.h>
#include <rte_memcpy.h>
#include <rte_string_fns.h>
#include <rte_cycles.h>
#include <rte_kvargs.h>
#include <rte_dev.h>
#include <rte_cryptodev_pmd.h>
#include <rte_common.h>
#include <rte_fslmc.h>
#include <fslmc_vfio.h>
#include <dpaa2_hw_pvt.h>
#include <dpaa2_hw_dpio.h>
#include <dpaa2_hw_mempool.h>
#include <fsl_dpopr.h>
#include <fsl_dpseci.h>
#include <fsl_mc_sys.h>
#include "dpaa2_sec_priv.h"
#include "dpaa2_sec_event.h"
#include "dpaa2_sec_logs.h"
/* RTA header files */
#include <desc/ipsec.h>
#include <desc/pdcp.h>
#include <desc/sdap.h>
#include <desc/algo.h>
/* Minimum job descriptor consists of a oneword job descriptor HEADER and
* a pointer to the shared descriptor
*/
#define MIN_JOB_DESC_SIZE (CAAM_CMD_SZ + CAAM_PTR_SZ)
#define FSL_VENDOR_ID 0x1957
#define FSL_DEVICE_ID 0x410
#define FSL_SUBSYSTEM_SEC 1
#define FSL_MC_DPSECI_DEVID 3
#define NO_PREFETCH 0
/* FLE_POOL_NUM_BUFS is set as per the ipsec-secgw application */
#define FLE_POOL_NUM_BUFS 32000
#define FLE_POOL_BUF_SIZE 256
#define FLE_POOL_CACHE_SIZE 512
#define FLE_SG_MEM_SIZE(num) (FLE_POOL_BUF_SIZE + ((num) * 32))
#define SEC_FLC_DHR_OUTBOUND -114
#define SEC_FLC_DHR_INBOUND 0
static uint8_t cryptodev_driver_id;
#ifdef RTE_LIB_SECURITY
static inline int
build_proto_compound_sg_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *sge, *ip_fle, *op_fle;
struct sec_flow_context *flc;
struct rte_mbuf *mbuf;
uint32_t in_len = 0, out_len = 0;
if (sym_op->m_dst)
mbuf = sym_op->m_dst;
else
mbuf = sym_op->m_src;
/* first FLE entry used to store mbuf and session ctxt */
fle = (struct qbman_fle *)rte_malloc(NULL,
FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs),
RTE_CACHE_LINE_SIZE);
if (unlikely(!fle)) {
DPAA2_SEC_DP_ERR("Proto:SG: Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs));
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
op_fle = fle + 1;
ip_fle = fle + 2;
sge = fle + 3;
if (likely(bpid < MAX_BPID)) {
DPAA2_SET_FD_BPID(fd, bpid);
DPAA2_SET_FLE_BPID(op_fle, bpid);
DPAA2_SET_FLE_BPID(ip_fle, bpid);
} else {
DPAA2_SET_FD_IVP(fd);
DPAA2_SET_FLE_IVP(op_fle);
DPAA2_SET_FLE_IVP(ip_fle);
}
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(op_fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
/* Configure Output FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_SG_EXT(op_fle);
DPAA2_SET_FLE_ADDR(op_fle, DPAA2_VADDR_TO_IOVA(sge));
/* Configure Output SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
/* o/p segs */
while (mbuf->next) {
sge->length = mbuf->data_len;
out_len += sge->length;
sge++;
mbuf = mbuf->next;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
}
/* using buf_len for last buf - so that extra data can be added */
sge->length = mbuf->buf_len - mbuf->data_off;
out_len += sge->length;
DPAA2_SET_FLE_FIN(sge);
op_fle->length = out_len;
sge++;
mbuf = sym_op->m_src;
/* Configure Input FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(ip_fle, DPAA2_VADDR_TO_IOVA(sge));
DPAA2_SET_FLE_SG_EXT(ip_fle);
DPAA2_SET_FLE_FIN(ip_fle);
/* Configure input SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
in_len += sge->length;
mbuf = mbuf->next;
/* i/p segs */
while (mbuf) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
in_len += sge->length;
mbuf = mbuf->next;
}
ip_fle->length = in_len;
DPAA2_SET_FLE_FIN(sge);
/* In case of PDCP, per packet HFN is stored in
* mbuf priv after sym_op.
*/
if (sess->ctxt_type == DPAA2_SEC_PDCP && sess->pdcp.hfn_ovd) {
uint32_t hfn_ovd = *(uint32_t *)((uint8_t *)op +
sess->pdcp.hfn_ovd_offset);
/*enable HFN override override */
DPAA2_SET_FLE_INTERNAL_JD(ip_fle, hfn_ovd);
DPAA2_SET_FLE_INTERNAL_JD(op_fle, hfn_ovd);
DPAA2_SET_FD_INTERNAL_JD(fd, hfn_ovd);
}
DPAA2_SET_FD_LEN(fd, ip_fle->length);
return 0;
}
static inline int
build_proto_compound_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *ip_fle, *op_fle;
struct sec_flow_context *flc;
struct rte_mbuf *src_mbuf = sym_op->m_src;
struct rte_mbuf *dst_mbuf = sym_op->m_dst;
int retval;
if (!dst_mbuf)
dst_mbuf = src_mbuf;
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
/* we are using the first FLE entry to store Mbuf */
retval = rte_mempool_get(priv->fle_pool, (void **)(&fle));
if (retval) {
DPAA2_SEC_DP_ERR("Memory alloc failed");
return -ENOMEM;
}
memset(fle, 0, FLE_POOL_BUF_SIZE);
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
op_fle = fle + 1;
ip_fle = fle + 2;
if (likely(bpid < MAX_BPID)) {
DPAA2_SET_FD_BPID(fd, bpid);
DPAA2_SET_FLE_BPID(op_fle, bpid);
DPAA2_SET_FLE_BPID(ip_fle, bpid);
} else {
DPAA2_SET_FD_IVP(fd);
DPAA2_SET_FLE_IVP(op_fle);
DPAA2_SET_FLE_IVP(ip_fle);
}
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(op_fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
/* Configure Output FLE with dst mbuf data */
DPAA2_SET_FLE_ADDR(op_fle, DPAA2_MBUF_VADDR_TO_IOVA(dst_mbuf));
DPAA2_SET_FLE_OFFSET(op_fle, dst_mbuf->data_off);
DPAA2_SET_FLE_LEN(op_fle, dst_mbuf->buf_len);
/* Configure Input FLE with src mbuf data */
DPAA2_SET_FLE_ADDR(ip_fle, DPAA2_MBUF_VADDR_TO_IOVA(src_mbuf));
DPAA2_SET_FLE_OFFSET(ip_fle, src_mbuf->data_off);
DPAA2_SET_FLE_LEN(ip_fle, src_mbuf->pkt_len);
DPAA2_SET_FD_LEN(fd, ip_fle->length);
DPAA2_SET_FLE_FIN(ip_fle);
/* In case of PDCP, per packet HFN is stored in
* mbuf priv after sym_op.
*/
if (sess->ctxt_type == DPAA2_SEC_PDCP && sess->pdcp.hfn_ovd) {
uint32_t hfn_ovd = *(uint32_t *)((uint8_t *)op +
sess->pdcp.hfn_ovd_offset);
/*enable HFN override override */
DPAA2_SET_FLE_INTERNAL_JD(ip_fle, hfn_ovd);
DPAA2_SET_FLE_INTERNAL_JD(op_fle, hfn_ovd);
DPAA2_SET_FD_INTERNAL_JD(fd, hfn_ovd);
}
return 0;
}
static inline int
build_proto_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
if (sym_op->m_dst)
return build_proto_compound_fd(sess, op, fd, bpid);
struct ctxt_priv *priv = sess->ctxt;
struct sec_flow_context *flc;
struct rte_mbuf *mbuf = sym_op->m_src;
if (likely(bpid < MAX_BPID))
DPAA2_SET_FD_BPID(fd, bpid);
else
DPAA2_SET_FD_IVP(fd);
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
DPAA2_SET_FD_ADDR(fd, DPAA2_MBUF_VADDR_TO_IOVA(sym_op->m_src));
DPAA2_SET_FD_OFFSET(fd, sym_op->m_src->data_off);
DPAA2_SET_FD_LEN(fd, sym_op->m_src->pkt_len);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
/* save physical address of mbuf */
op->sym->aead.digest.phys_addr = mbuf->buf_iova;
mbuf->buf_iova = (size_t)op;
return 0;
}
#endif
static inline int
build_authenc_gcm_sg_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, __rte_unused uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *sge, *ip_fle, *op_fle;
struct sec_flow_context *flc;
uint32_t auth_only_len = sess->ext_params.aead_ctxt.auth_only_len;
int icv_len = sess->digest_length;
uint8_t *old_icv;
struct rte_mbuf *mbuf;
uint8_t *IV_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
sess->iv.offset);
if (sym_op->m_dst)
mbuf = sym_op->m_dst;
else
mbuf = sym_op->m_src;
/* first FLE entry used to store mbuf and session ctxt */
fle = (struct qbman_fle *)rte_malloc(NULL,
FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs),
RTE_CACHE_LINE_SIZE);
if (unlikely(!fle)) {
DPAA2_SEC_ERR("GCM SG: Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs));
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (size_t)priv);
op_fle = fle + 1;
ip_fle = fle + 2;
sge = fle + 3;
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(op_fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
DPAA2_SEC_DP_DEBUG("GCM SG: auth_off: 0x%x/length %d, digest-len=%d\n"
"iv-len=%d data_off: 0x%x\n",
sym_op->aead.data.offset,
sym_op->aead.data.length,
sess->digest_length,
sess->iv.length,
sym_op->m_src->data_off);
/* Configure Output FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_SG_EXT(op_fle);
DPAA2_SET_FLE_ADDR(op_fle, DPAA2_VADDR_TO_IOVA(sge));
if (auth_only_len)
DPAA2_SET_FLE_INTERNAL_JD(op_fle, auth_only_len);
op_fle->length = (sess->dir == DIR_ENC) ?
(sym_op->aead.data.length + icv_len) :
sym_op->aead.data.length;
/* Configure Output SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off + sym_op->aead.data.offset);
sge->length = mbuf->data_len - sym_op->aead.data.offset;
mbuf = mbuf->next;
/* o/p segs */
while (mbuf) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
mbuf = mbuf->next;
}
sge->length -= icv_len;
if (sess->dir == DIR_ENC) {
sge++;
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->aead.digest.data));
sge->length = icv_len;
}
DPAA2_SET_FLE_FIN(sge);
sge++;
mbuf = sym_op->m_src;
/* Configure Input FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(ip_fle, DPAA2_VADDR_TO_IOVA(sge));
DPAA2_SET_FLE_SG_EXT(ip_fle);
DPAA2_SET_FLE_FIN(ip_fle);
ip_fle->length = (sess->dir == DIR_ENC) ?
(sym_op->aead.data.length + sess->iv.length + auth_only_len) :
(sym_op->aead.data.length + sess->iv.length + auth_only_len +
icv_len);
/* Configure Input SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(IV_ptr));
sge->length = sess->iv.length;
sge++;
if (auth_only_len) {
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->aead.aad.data));
sge->length = auth_only_len;
sge++;
}
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, sym_op->aead.data.offset +
mbuf->data_off);
sge->length = mbuf->data_len - sym_op->aead.data.offset;
mbuf = mbuf->next;
/* i/p segs */
while (mbuf) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
mbuf = mbuf->next;
}
if (sess->dir == DIR_DEC) {
sge++;
old_icv = (uint8_t *)(sge + 1);
memcpy(old_icv, sym_op->aead.digest.data, icv_len);
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(old_icv));
sge->length = icv_len;
}
DPAA2_SET_FLE_FIN(sge);
if (auth_only_len) {
DPAA2_SET_FLE_INTERNAL_JD(ip_fle, auth_only_len);
DPAA2_SET_FD_INTERNAL_JD(fd, auth_only_len);
}
DPAA2_SET_FD_LEN(fd, ip_fle->length);
return 0;
}
static inline int
build_authenc_gcm_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *sge;
struct sec_flow_context *flc;
uint32_t auth_only_len = sess->ext_params.aead_ctxt.auth_only_len;
int icv_len = sess->digest_length, retval;
uint8_t *old_icv;
struct rte_mbuf *dst;
uint8_t *IV_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
sess->iv.offset);
if (sym_op->m_dst)
dst = sym_op->m_dst;
else
dst = sym_op->m_src;
/* TODO we are using the first FLE entry to store Mbuf and session ctxt.
* Currently we donot know which FLE has the mbuf stored.
* So while retreiving we can go back 1 FLE from the FD -ADDR
* to get the MBUF Addr from the previous FLE.
* We can have a better approach to use the inline Mbuf
*/
retval = rte_mempool_get(priv->fle_pool, (void **)(&fle));
if (retval) {
DPAA2_SEC_ERR("GCM: Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_POOL_BUF_SIZE);
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
fle = fle + 1;
sge = fle + 2;
if (likely(bpid < MAX_BPID)) {
DPAA2_SET_FD_BPID(fd, bpid);
DPAA2_SET_FLE_BPID(fle, bpid);
DPAA2_SET_FLE_BPID(fle + 1, bpid);
DPAA2_SET_FLE_BPID(sge, bpid);
DPAA2_SET_FLE_BPID(sge + 1, bpid);
DPAA2_SET_FLE_BPID(sge + 2, bpid);
DPAA2_SET_FLE_BPID(sge + 3, bpid);
} else {
DPAA2_SET_FD_IVP(fd);
DPAA2_SET_FLE_IVP(fle);
DPAA2_SET_FLE_IVP((fle + 1));
DPAA2_SET_FLE_IVP(sge);
DPAA2_SET_FLE_IVP((sge + 1));
DPAA2_SET_FLE_IVP((sge + 2));
DPAA2_SET_FLE_IVP((sge + 3));
}
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
DPAA2_SEC_DP_DEBUG("GCM: auth_off: 0x%x/length %d, digest-len=%d\n"
"iv-len=%d data_off: 0x%x\n",
sym_op->aead.data.offset,
sym_op->aead.data.length,
sess->digest_length,
sess->iv.length,
sym_op->m_src->data_off);
/* Configure Output FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(fle, DPAA2_VADDR_TO_IOVA(sge));
if (auth_only_len)
DPAA2_SET_FLE_INTERNAL_JD(fle, auth_only_len);
fle->length = (sess->dir == DIR_ENC) ?
(sym_op->aead.data.length + icv_len) :
sym_op->aead.data.length;
DPAA2_SET_FLE_SG_EXT(fle);
/* Configure Output SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(dst));
DPAA2_SET_FLE_OFFSET(sge, dst->data_off + sym_op->aead.data.offset);
sge->length = sym_op->aead.data.length;
if (sess->dir == DIR_ENC) {
sge++;
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->aead.digest.data));
sge->length = sess->digest_length;
}
DPAA2_SET_FLE_FIN(sge);
sge++;
fle++;
/* Configure Input FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(fle, DPAA2_VADDR_TO_IOVA(sge));
DPAA2_SET_FLE_SG_EXT(fle);
DPAA2_SET_FLE_FIN(fle);
fle->length = (sess->dir == DIR_ENC) ?
(sym_op->aead.data.length + sess->iv.length + auth_only_len) :
(sym_op->aead.data.length + sess->iv.length + auth_only_len +
sess->digest_length);
/* Configure Input SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(IV_ptr));
sge->length = sess->iv.length;
sge++;
if (auth_only_len) {
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->aead.aad.data));
sge->length = auth_only_len;
DPAA2_SET_FLE_BPID(sge, bpid);
sge++;
}
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(sym_op->m_src));
DPAA2_SET_FLE_OFFSET(sge, sym_op->aead.data.offset +
sym_op->m_src->data_off);
sge->length = sym_op->aead.data.length;
if (sess->dir == DIR_DEC) {
sge++;
old_icv = (uint8_t *)(sge + 1);
memcpy(old_icv, sym_op->aead.digest.data,
sess->digest_length);
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(old_icv));
sge->length = sess->digest_length;
}
DPAA2_SET_FLE_FIN(sge);
if (auth_only_len) {
DPAA2_SET_FLE_INTERNAL_JD(fle, auth_only_len);
DPAA2_SET_FD_INTERNAL_JD(fd, auth_only_len);
}
DPAA2_SET_FD_LEN(fd, fle->length);
return 0;
}
static inline int
build_authenc_sg_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, __rte_unused uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *sge, *ip_fle, *op_fle;
struct sec_flow_context *flc;
uint16_t auth_hdr_len = sym_op->cipher.data.offset -
sym_op->auth.data.offset;
uint16_t auth_tail_len = sym_op->auth.data.length -
sym_op->cipher.data.length - auth_hdr_len;
uint32_t auth_only_len = (auth_tail_len << 16) | auth_hdr_len;
int icv_len = sess->digest_length;
uint8_t *old_icv;
struct rte_mbuf *mbuf;
uint8_t *iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
sess->iv.offset);
if (sym_op->m_dst)
mbuf = sym_op->m_dst;
else
mbuf = sym_op->m_src;
/* first FLE entry used to store mbuf and session ctxt */
fle = (struct qbman_fle *)rte_malloc(NULL,
FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs),
RTE_CACHE_LINE_SIZE);
if (unlikely(!fle)) {
DPAA2_SEC_ERR("AUTHENC SG: Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_SG_MEM_SIZE(mbuf->nb_segs + sym_op->m_src->nb_segs));
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
op_fle = fle + 1;
ip_fle = fle + 2;
sge = fle + 3;
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(op_fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
DPAA2_SEC_DP_DEBUG(
"AUTHENC SG: auth_off: 0x%x/length %d, digest-len=%d\n"
"cipher_off: 0x%x/length %d, iv-len=%d data_off: 0x%x\n",
sym_op->auth.data.offset,
sym_op->auth.data.length,
sess->digest_length,
sym_op->cipher.data.offset,
sym_op->cipher.data.length,
sess->iv.length,
sym_op->m_src->data_off);
/* Configure Output FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_SG_EXT(op_fle);
DPAA2_SET_FLE_ADDR(op_fle, DPAA2_VADDR_TO_IOVA(sge));
if (auth_only_len)
DPAA2_SET_FLE_INTERNAL_JD(op_fle, auth_only_len);
op_fle->length = (sess->dir == DIR_ENC) ?
(sym_op->cipher.data.length + icv_len) :
sym_op->cipher.data.length;
/* Configure Output SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off + sym_op->auth.data.offset);
sge->length = mbuf->data_len - sym_op->auth.data.offset;
mbuf = mbuf->next;
/* o/p segs */
while (mbuf) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
mbuf = mbuf->next;
}
sge->length -= icv_len;
if (sess->dir == DIR_ENC) {
sge++;
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->auth.digest.data));
sge->length = icv_len;
}
DPAA2_SET_FLE_FIN(sge);
sge++;
mbuf = sym_op->m_src;
/* Configure Input FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(ip_fle, DPAA2_VADDR_TO_IOVA(sge));
DPAA2_SET_FLE_SG_EXT(ip_fle);
DPAA2_SET_FLE_FIN(ip_fle);
ip_fle->length = (sess->dir == DIR_ENC) ?
(sym_op->auth.data.length + sess->iv.length) :
(sym_op->auth.data.length + sess->iv.length +
icv_len);
/* Configure Input SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(iv_ptr));
sge->length = sess->iv.length;
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, sym_op->auth.data.offset +
mbuf->data_off);
sge->length = mbuf->data_len - sym_op->auth.data.offset;
mbuf = mbuf->next;
/* i/p segs */
while (mbuf) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
sge->length = mbuf->data_len;
mbuf = mbuf->next;
}
sge->length -= icv_len;
if (sess->dir == DIR_DEC) {
sge++;
old_icv = (uint8_t *)(sge + 1);
memcpy(old_icv, sym_op->auth.digest.data,
icv_len);
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(old_icv));
sge->length = icv_len;
}
DPAA2_SET_FLE_FIN(sge);
if (auth_only_len) {
DPAA2_SET_FLE_INTERNAL_JD(ip_fle, auth_only_len);
DPAA2_SET_FD_INTERNAL_JD(fd, auth_only_len);
}
DPAA2_SET_FD_LEN(fd, ip_fle->length);
return 0;
}
static inline int
build_authenc_fd(dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct ctxt_priv *priv = sess->ctxt;
struct qbman_fle *fle, *sge;
struct sec_flow_context *flc;
uint16_t auth_hdr_len = sym_op->cipher.data.offset -
sym_op->auth.data.offset;
uint16_t auth_tail_len = sym_op->auth.data.length -
sym_op->cipher.data.length - auth_hdr_len;
uint32_t auth_only_len = (auth_tail_len << 16) | auth_hdr_len;
int icv_len = sess->digest_length, retval;
uint8_t *old_icv;
uint8_t *iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
sess->iv.offset);
struct rte_mbuf *dst;
if (sym_op->m_dst)
dst = sym_op->m_dst;
else
dst = sym_op->m_src;
/* we are using the first FLE entry to store Mbuf.
* Currently we donot know which FLE has the mbuf stored.
* So while retreiving we can go back 1 FLE from the FD -ADDR
* to get the MBUF Addr from the previous FLE.
* We can have a better approach to use the inline Mbuf
*/
retval = rte_mempool_get(priv->fle_pool, (void **)(&fle));
if (retval) {
DPAA2_SEC_ERR("Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_POOL_BUF_SIZE);
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
fle = fle + 1;
sge = fle + 2;
if (likely(bpid < MAX_BPID)) {
DPAA2_SET_FD_BPID(fd, bpid);
DPAA2_SET_FLE_BPID(fle, bpid);
DPAA2_SET_FLE_BPID(fle + 1, bpid);
DPAA2_SET_FLE_BPID(sge, bpid);
DPAA2_SET_FLE_BPID(sge + 1, bpid);
DPAA2_SET_FLE_BPID(sge + 2, bpid);
DPAA2_SET_FLE_BPID(sge + 3, bpid);
} else {
DPAA2_SET_FD_IVP(fd);
DPAA2_SET_FLE_IVP(fle);
DPAA2_SET_FLE_IVP((fle + 1));
DPAA2_SET_FLE_IVP(sge);
DPAA2_SET_FLE_IVP((sge + 1));
DPAA2_SET_FLE_IVP((sge + 2));
DPAA2_SET_FLE_IVP((sge + 3));
}
/* Save the shared descriptor */
flc = &priv->flc_desc[0].flc;
/* Configure FD as a FRAME LIST */
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
DPAA2_SEC_DP_DEBUG(
"AUTHENC: auth_off: 0x%x/length %d, digest-len=%d\n"
"cipher_off: 0x%x/length %d, iv-len=%d data_off: 0x%x\n",
sym_op->auth.data.offset,
sym_op->auth.data.length,
sess->digest_length,
sym_op->cipher.data.offset,
sym_op->cipher.data.length,
sess->iv.length,
sym_op->m_src->data_off);
/* Configure Output FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(fle, DPAA2_VADDR_TO_IOVA(sge));
if (auth_only_len)
DPAA2_SET_FLE_INTERNAL_JD(fle, auth_only_len);
fle->length = (sess->dir == DIR_ENC) ?
(sym_op->cipher.data.length + icv_len) :
sym_op->cipher.data.length;
DPAA2_SET_FLE_SG_EXT(fle);
/* Configure Output SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(dst));
DPAA2_SET_FLE_OFFSET(sge, sym_op->cipher.data.offset +
dst->data_off);
sge->length = sym_op->cipher.data.length;
if (sess->dir == DIR_ENC) {
sge++;
DPAA2_SET_FLE_ADDR(sge,
DPAA2_VADDR_TO_IOVA(sym_op->auth.digest.data));
sge->length = sess->digest_length;
DPAA2_SET_FD_LEN(fd, (sym_op->auth.data.length +
sess->iv.length));
}
DPAA2_SET_FLE_FIN(sge);
sge++;
fle++;
/* Configure Input FLE with Scatter/Gather Entry */
DPAA2_SET_FLE_ADDR(fle, DPAA2_VADDR_TO_IOVA(sge));
DPAA2_SET_FLE_SG_EXT(fle);
DPAA2_SET_FLE_FIN(fle);
fle->length = (sess->dir == DIR_ENC) ?
(sym_op->auth.data.length + sess->iv.length) :
(sym_op->auth.data.length + sess->iv.length +
sess->digest_length);
/* Configure Input SGE for Encap/Decap */
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(iv_ptr));
sge->length = sess->iv.length;
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(sym_op->m_src));
DPAA2_SET_FLE_OFFSET(sge, sym_op->auth.data.offset +
sym_op->m_src->data_off);
sge->length = sym_op->auth.data.length;
if (sess->dir == DIR_DEC) {
sge++;
old_icv = (uint8_t *)(sge + 1);
memcpy(old_icv, sym_op->auth.digest.data,
sess->digest_length);
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(old_icv));
sge->length = sess->digest_length;
DPAA2_SET_FD_LEN(fd, (sym_op->auth.data.length +
sess->digest_length +
sess->iv.length));
}
DPAA2_SET_FLE_FIN(sge);
if (auth_only_len) {
DPAA2_SET_FLE_INTERNAL_JD(fle, auth_only_len);
DPAA2_SET_FD_INTERNAL_JD(fd, auth_only_len);
}
return 0;
}
static inline int build_auth_sg_fd(
dpaa2_sec_session *sess,
struct rte_crypto_op *op,
struct qbman_fd *fd,
__rte_unused uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct qbman_fle *fle, *sge, *ip_fle, *op_fle;
struct sec_flow_context *flc;
struct ctxt_priv *priv = sess->ctxt;
int data_len, data_offset;
uint8_t *old_digest;
struct rte_mbuf *mbuf;
data_len = sym_op->auth.data.length;
data_offset = sym_op->auth.data.offset;
if (sess->auth_alg == RTE_CRYPTO_AUTH_SNOW3G_UIA2 ||
sess->auth_alg == RTE_CRYPTO_AUTH_ZUC_EIA3) {
if ((data_len & 7) || (data_offset & 7)) {
DPAA2_SEC_ERR("AUTH: len/offset must be full bytes");
return -ENOTSUP;
}
data_len = data_len >> 3;
data_offset = data_offset >> 3;
}
mbuf = sym_op->m_src;
fle = (struct qbman_fle *)rte_malloc(NULL,
FLE_SG_MEM_SIZE(mbuf->nb_segs),
RTE_CACHE_LINE_SIZE);
if (unlikely(!fle)) {
DPAA2_SEC_ERR("AUTH SG: Memory alloc failed for SGE");
return -ENOMEM;
}
memset(fle, 0, FLE_SG_MEM_SIZE(mbuf->nb_segs));
/* first FLE entry used to store mbuf and session ctxt */
DPAA2_SET_FLE_ADDR(fle, (size_t)op);
DPAA2_FLE_SAVE_CTXT(fle, (ptrdiff_t)priv);
op_fle = fle + 1;
ip_fle = fle + 2;
sge = fle + 3;
flc = &priv->flc_desc[DESC_INITFINAL].flc;
/* sg FD */
DPAA2_SET_FD_FLC(fd, DPAA2_VADDR_TO_IOVA(flc));
DPAA2_SET_FD_ADDR(fd, DPAA2_VADDR_TO_IOVA(op_fle));
DPAA2_SET_FD_COMPOUND_FMT(fd);
/* o/p fle */
DPAA2_SET_FLE_ADDR(op_fle,
DPAA2_VADDR_TO_IOVA(sym_op->auth.digest.data));
op_fle->length = sess->digest_length;
/* i/p fle */
DPAA2_SET_FLE_SG_EXT(ip_fle);
DPAA2_SET_FLE_ADDR(ip_fle, DPAA2_VADDR_TO_IOVA(sge));
ip_fle->length = data_len;
if (sess->iv.length) {
uint8_t *iv_ptr;
iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
sess->iv.offset);
if (sess->auth_alg == RTE_CRYPTO_AUTH_SNOW3G_UIA2) {
iv_ptr = conv_to_snow_f9_iv(iv_ptr);
sge->length = 12;
} else if (sess->auth_alg == RTE_CRYPTO_AUTH_ZUC_EIA3) {
iv_ptr = conv_to_zuc_eia_iv(iv_ptr);
sge->length = 8;
} else {
sge->length = sess->iv.length;
}
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(iv_ptr));
ip_fle->length += sge->length;
sge++;
}
/* i/p 1st seg */
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, data_offset + mbuf->data_off);
if (data_len <= (mbuf->data_len - data_offset)) {
sge->length = data_len;
data_len = 0;
} else {
sge->length = mbuf->data_len - data_offset;
/* remaining i/p segs */
while ((data_len = data_len - sge->length) &&
(mbuf = mbuf->next)) {
sge++;
DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(mbuf));
DPAA2_SET_FLE_OFFSET(sge, mbuf->data_off);
if (data_len > mbuf->data_len)
sge->length = mbuf->data_len;
else
sge->length = data_len;
}
}
if (sess->dir == DIR_DEC) {
/* Digest verification case */
sge++;
old_digest = (uint8_t *)(sge + 1);
rte_memcpy(old_digest, sym_op->auth.digest.data,
sess->digest_length);
DPAA2_SET_FLE_ADDR(sge, DPAA2_VADDR_TO_IOVA(old_digest));
sge->length = sess->digest_length;
ip_fle->length += sess->digest_length;
}
DPAA2_SET_FLE_FIN(sge);
DPAA2_SET_FLE_FIN(ip_fle);
DPAA2_SET_FD_LEN(fd, ip_fle->length);
return 0;
}
static inline int
build_auth_fd(dpaa2_sec_session *sess, struct rte_crypto_op *op,
struct qbman_fd *fd, uint16_t bpid)
{
struct rte_crypto_sym_op *sym_op = op->sym;
struct qbman_fle *fle, *sge;
struct sec_flow_context *flc;
struct ctxt_priv *priv = sess->ctxt;
int data_len, data_offset;
uint8_t *old_digest;
int retval;
data_len = sym_op->auth.data.length;
data_offset = sym_op->auth.data.offset;
if (sess->auth_alg == RTE_CRYPTO_AUTH_SNOW3G_UIA2 ||