*/
#include <rte_malloc.h>
#include <rte_hash.h>
+#include <rte_jhash.h>
#include <rte_mbuf.h>
#include <rte_cryptodev.h>
#define VC_LOG_DBG(fmt, args...)
#endif
-#define GPA_TO_VVA(t, m, a) ((t)(uintptr_t)rte_vhost_gpa_to_vva(m, a))
+#define VIRTIO_CRYPTO_FEATURES ((1 << VIRTIO_F_NOTIFY_ON_EMPTY) | \
+ (1 << VIRTIO_RING_F_INDIRECT_DESC) | \
+ (1 << VIRTIO_RING_F_EVENT_IDX) | \
+ (1 << VIRTIO_CRYPTO_SERVICE_CIPHER) | \
+ (1 << VIRTIO_CRYPTO_SERVICE_MAC) | \
+ (1 << VIRTIO_NET_F_CTRL_VQ))
+
+#define IOVA_TO_VVA(t, r, a, l, p) \
+ ((t)(uintptr_t)vhost_iova_to_vva(r->dev, r->vq, a, l, p))
static int
cipher_algo_transform(uint32_t virtio_cipher_algo)
struct vhost_crypto_data_req {
struct vring_desc *head;
- struct rte_vhost_memory *mem;
+ struct virtio_net *dev;
struct virtio_crypto_inhdr *inhdr;
struct vhost_virtqueue *vq;
struct vring_desc *wb_desc;
}
static struct virtio_crypto_inhdr *
-reach_inhdr(struct vring_desc *head, struct rte_vhost_memory *mem,
- struct vring_desc *desc)
+reach_inhdr(struct vhost_crypto_data_req *vc_req, struct vring_desc *desc)
{
+ uint64_t dlen;
+ struct virtio_crypto_inhdr *inhdr;
+
while (desc->flags & VRING_DESC_F_NEXT)
- desc = &head[desc->next];
+ desc = &vc_req->head[desc->next];
- return GPA_TO_VVA(struct virtio_crypto_inhdr *, mem, desc->addr);
+ dlen = desc->len;
+ inhdr = IOVA_TO_VVA(struct virtio_crypto_inhdr *, vc_req, desc->addr,
+ &dlen, VHOST_ACCESS_WO);
+ if (unlikely(!inhdr || dlen != desc->len))
+ return NULL;
+
+ return inhdr;
}
static __rte_always_inline int
left -= desc->len;
}
- if (unlikely(left < 0)) {
+ if (unlikely(left > 0)) {
VC_LOG_ERR("Incorrect virtio descriptor");
return -1;
}
}
static int
-copy_data(void *dst_data, struct vring_desc *head, struct rte_vhost_memory *mem,
+copy_data(void *dst_data, struct vhost_crypto_data_req *vc_req,
struct vring_desc **cur_desc, uint32_t size)
{
struct vring_desc *desc = *cur_desc;
+ uint64_t remain, addr, dlen, len;
uint32_t to_copy;
uint8_t *data = dst_data;
uint8_t *src;
int left = size;
- rte_prefetch0(&head[desc->next]);
+ rte_prefetch0(&vc_req->head[desc->next]);
to_copy = RTE_MIN(desc->len, (uint32_t)left);
- src = GPA_TO_VVA(uint8_t *, mem, desc->addr);
- rte_memcpy((uint8_t *)data, src, to_copy);
+ dlen = to_copy;
+ src = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr, &dlen,
+ VHOST_ACCESS_RO);
+ if (unlikely(!src || !dlen)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
+ rte_memcpy((uint8_t *)data, src, dlen);
+ data += dlen;
+
+ if (unlikely(dlen < to_copy)) {
+ remain = to_copy - dlen;
+ addr = desc->addr + dlen;
+
+ while (remain) {
+ len = remain;
+ src = IOVA_TO_VVA(uint8_t *, vc_req, addr, &len,
+ VHOST_ACCESS_RO);
+ if (unlikely(!src || !len)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
+ rte_memcpy(data, src, len);
+ addr += len;
+ remain -= len;
+ data += len;
+ }
+ }
+
left -= to_copy;
while ((desc->flags & VRING_DESC_F_NEXT) && left > 0) {
- desc = &head[desc->next];
- rte_prefetch0(&head[desc->next]);
+ desc = &vc_req->head[desc->next];
+ rte_prefetch0(&vc_req->head[desc->next]);
to_copy = RTE_MIN(desc->len, (uint32_t)left);
- src = GPA_TO_VVA(uint8_t *, mem, desc->addr);
- rte_memcpy(data + size - left, src, to_copy);
+ dlen = desc->len;
+ src = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr, &dlen,
+ VHOST_ACCESS_RO);
+ if (unlikely(!src || !dlen)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
+ rte_memcpy(data, src, dlen);
+ data += dlen;
+
+ if (unlikely(dlen < to_copy)) {
+ remain = to_copy - dlen;
+ addr = desc->addr + dlen;
+
+ while (remain) {
+ len = remain;
+ src = IOVA_TO_VVA(uint8_t *, vc_req, addr, &len,
+ VHOST_ACCESS_RO);
+ if (unlikely(!src || !len)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
+ rte_memcpy(data, src, len);
+ addr += len;
+ remain -= len;
+ data += len;
+ }
+ }
+
left -= to_copy;
}
- if (unlikely(left < 0)) {
+ if (unlikely(left > 0)) {
VC_LOG_ERR("Incorrect virtio descriptor");
return -1;
}
- *cur_desc = &head[desc->next];
+ *cur_desc = &vc_req->head[desc->next];
return 0;
}
static __rte_always_inline void *
-get_data_ptr(struct vring_desc *head, struct rte_vhost_memory *mem,
- struct vring_desc **cur_desc, uint32_t size)
+get_data_ptr(struct vhost_crypto_data_req *vc_req, struct vring_desc **cur_desc,
+ uint32_t size, uint8_t perm)
{
void *data;
+ uint64_t dlen = (*cur_desc)->len;
- data = GPA_TO_VVA(void *, mem, (*cur_desc)->addr);
- if (unlikely(!data)) {
- VC_LOG_ERR("Failed to get object");
+ data = IOVA_TO_VVA(void *, vc_req, (*cur_desc)->addr, &dlen, perm);
+ if (unlikely(!data || dlen != (*cur_desc)->len)) {
+ VC_LOG_ERR("Failed to map object");
return NULL;
}
- if (unlikely(move_desc(head, cur_desc, size) < 0))
+ if (unlikely(move_desc(vc_req->head, cur_desc, size) < 0))
return NULL;
return data;
{
struct rte_mbuf *mbuf = op->sym->m_dst;
struct vring_desc *head = vc_req->head;
- struct rte_vhost_memory *mem = vc_req->mem;
struct vring_desc *desc = vc_req->wb_desc;
int left = vc_req->wb_len;
uint32_t to_write;
uint8_t *src_data = mbuf->buf_addr, *dst;
+ uint64_t dlen;
rte_prefetch0(&head[desc->next]);
to_write = RTE_MIN(desc->len, (uint32_t)left);
- dst = GPA_TO_VVA(uint8_t *, mem, desc->addr);
+ dlen = desc->len;
+ dst = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr, &dlen,
+ VHOST_ACCESS_RW);
+ if (unlikely(!dst || dlen != desc->len)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
rte_memcpy(dst, src_data, to_write);
left -= to_write;
src_data += to_write;
desc = &head[desc->next];
rte_prefetch0(&head[desc->next]);
to_write = RTE_MIN(desc->len, (uint32_t)left);
- dst = GPA_TO_VVA(uint8_t *, mem, desc->addr);
+ dlen = desc->len;
+ dst = IOVA_TO_VVA(uint8_t *, vc_req, desc->addr, &dlen,
+ VHOST_ACCESS_RW);
+ if (unlikely(!dst || dlen != desc->len)) {
+ VC_LOG_ERR("Failed to map descriptor");
+ return -1;
+ }
+
rte_memcpy(dst, src_data, to_write);
left -= to_write;
src_data += to_write;
struct virtio_crypto_cipher_data_req *cipher,
struct vring_desc *cur_desc)
{
- struct vring_desc *head = vc_req->head;
struct vring_desc *desc = cur_desc;
- struct rte_vhost_memory *mem = vc_req->mem;
struct rte_mbuf *m_src = op->sym->m_src, *m_dst = op->sym->m_dst;
uint8_t *iv_data = rte_crypto_op_ctod_offset(op, uint8_t *, IV_OFFSET);
uint8_t ret = 0;
/* prepare */
/* iv */
- if (unlikely(copy_data(iv_data, head, mem, &desc,
+ if (unlikely(copy_data(iv_data, vc_req, &desc,
cipher->para.iv_len) < 0)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
m_src->buf_iova = gpa_to_hpa(vcrypto->dev, desc->addr,
cipher->para.src_data_len);
- m_src->buf_addr = get_data_ptr(head, mem, &desc,
- cipher->para.src_data_len);
+ m_src->buf_addr = get_data_ptr(vc_req, &desc,
+ cipher->para.src_data_len, VHOST_ACCESS_RO);
if (unlikely(m_src->buf_iova == 0 ||
m_src->buf_addr == NULL)) {
VC_LOG_ERR("zero_copy may fail due to cross page data");
ret = VIRTIO_CRYPTO_ERR;
goto error_exit;
}
- if (unlikely(copy_data(rte_pktmbuf_mtod(m_src, uint8_t *), head,
- mem, &desc, cipher->para.src_data_len))
- < 0) {
+ if (unlikely(copy_data(rte_pktmbuf_mtod(m_src, uint8_t *),
+ vc_req, &desc, cipher->para.src_data_len)
+ < 0)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
}
}
/* dst */
- desc = find_write_desc(head, desc);
+ desc = find_write_desc(vc_req->head, desc);
if (unlikely(!desc)) {
VC_LOG_ERR("Cannot find write location");
ret = VIRTIO_CRYPTO_BADMSG;
case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
m_dst->buf_iova = gpa_to_hpa(vcrypto->dev,
desc->addr, cipher->para.dst_data_len);
- m_dst->buf_addr = get_data_ptr(head, mem, &desc,
- cipher->para.dst_data_len);
+ m_dst->buf_addr = get_data_ptr(vc_req, &desc,
+ cipher->para.dst_data_len, VHOST_ACCESS_RW);
if (unlikely(m_dst->buf_iova == 0 || m_dst->buf_addr == NULL)) {
VC_LOG_ERR("zero_copy may fail due to cross page data");
ret = VIRTIO_CRYPTO_ERR;
case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
vc_req->wb_desc = desc;
vc_req->wb_len = cipher->para.dst_data_len;
- if (unlikely(move_desc(head, &desc, vc_req->wb_len) < 0)) {
+ if (unlikely(move_desc(vc_req->head, &desc,
+ vc_req->wb_len) < 0)) {
ret = VIRTIO_CRYPTO_ERR;
goto error_exit;
}
op->sym->cipher.data.offset = 0;
op->sym->cipher.data.length = cipher->para.src_data_len;
- vc_req->inhdr = get_data_ptr(head, mem, &desc, INHDR_LEN);
+ vc_req->inhdr = get_data_ptr(vc_req, &desc, INHDR_LEN, VHOST_ACCESS_WO);
if (unlikely(vc_req->inhdr == NULL)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
struct virtio_crypto_alg_chain_data_req *chain,
struct vring_desc *cur_desc)
{
- struct vring_desc *head = vc_req->head;
struct vring_desc *desc = cur_desc;
- struct rte_vhost_memory *mem = vc_req->mem;
struct rte_mbuf *m_src = op->sym->m_src, *m_dst = op->sym->m_dst;
uint8_t *iv_data = rte_crypto_op_ctod_offset(op, uint8_t *, IV_OFFSET);
uint32_t digest_offset;
/* prepare */
/* iv */
- if (unlikely(copy_data(iv_data, head, mem, &desc,
+ if (unlikely(copy_data(iv_data, vc_req, &desc,
chain->para.iv_len) < 0)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
m_src->buf_iova = gpa_to_hpa(vcrypto->dev, desc->addr,
chain->para.src_data_len);
- m_src->buf_addr = get_data_ptr(head, mem, &desc,
- chain->para.src_data_len);
+ m_src->buf_addr = get_data_ptr(vc_req, &desc,
+ chain->para.src_data_len, VHOST_ACCESS_RO);
if (unlikely(m_src->buf_iova == 0 || m_src->buf_addr == NULL)) {
VC_LOG_ERR("zero_copy may fail due to cross page data");
ret = VIRTIO_CRYPTO_ERR;
ret = VIRTIO_CRYPTO_ERR;
goto error_exit;
}
- if (unlikely(copy_data(rte_pktmbuf_mtod(m_src, uint8_t *), head,
- mem, &desc, chain->para.src_data_len)) < 0) {
+ if (unlikely(copy_data(rte_pktmbuf_mtod(m_src, uint8_t *),
+ vc_req, &desc, chain->para.src_data_len)) < 0) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
}
}
/* dst */
- desc = find_write_desc(head, desc);
+ desc = find_write_desc(vc_req->head, desc);
if (unlikely(!desc)) {
VC_LOG_ERR("Cannot find write location");
ret = VIRTIO_CRYPTO_BADMSG;
case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
m_dst->buf_iova = gpa_to_hpa(vcrypto->dev,
desc->addr, chain->para.dst_data_len);
- m_dst->buf_addr = get_data_ptr(head, mem, &desc,
- chain->para.dst_data_len);
+ m_dst->buf_addr = get_data_ptr(vc_req, &desc,
+ chain->para.dst_data_len, VHOST_ACCESS_RW);
if (unlikely(m_dst->buf_iova == 0 || m_dst->buf_addr == NULL)) {
VC_LOG_ERR("zero_copy may fail due to cross page data");
ret = VIRTIO_CRYPTO_ERR;
op->sym->auth.digest.phys_addr = gpa_to_hpa(vcrypto->dev,
desc->addr, chain->para.hash_result_len);
- op->sym->auth.digest.data = get_data_ptr(head, mem, &desc,
- chain->para.hash_result_len);
+ op->sym->auth.digest.data = get_data_ptr(vc_req, &desc,
+ chain->para.hash_result_len, VHOST_ACCESS_RW);
if (unlikely(op->sym->auth.digest.phys_addr == 0)) {
VC_LOG_ERR("zero_copy may fail due to cross page data");
ret = VIRTIO_CRYPTO_ERR;
vc_req->wb_desc = desc;
vc_req->wb_len = m_dst->data_len + chain->para.hash_result_len;
- if (unlikely(move_desc(head, &desc,
+ if (unlikely(move_desc(vc_req->head, &desc,
chain->para.dst_data_len) < 0)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
}
- if (unlikely(copy_data(digest_addr, head, mem, &desc,
+ if (unlikely(copy_data(digest_addr, vc_req, &desc,
chain->para.hash_result_len)) < 0) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
op->sym->auth.digest.data = digest_addr;
op->sym->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m_dst,
digest_offset);
- if (unlikely(move_desc(head, &desc,
- chain->para.hash_result_len) < 0)) {
- ret = VIRTIO_CRYPTO_ERR;
- goto error_exit;
- }
break;
default:
ret = VIRTIO_CRYPTO_BADMSG;
}
/* record inhdr */
- vc_req->inhdr = get_data_ptr(head, mem, &desc, INHDR_LEN);
+ vc_req->inhdr = get_data_ptr(vc_req, &desc, INHDR_LEN, VHOST_ACCESS_WO);
if (unlikely(vc_req->inhdr == NULL)) {
ret = VIRTIO_CRYPTO_BADMSG;
goto error_exit;
static __rte_always_inline int
vhost_crypto_process_one_req(struct vhost_crypto *vcrypto,
struct vhost_virtqueue *vq, struct rte_crypto_op *op,
- struct vring_desc *head, uint16_t desc_idx,
- struct rte_vhost_memory *mem)
+ struct vring_desc *head, uint16_t desc_idx)
{
struct vhost_crypto_data_req *vc_req = RTE_PTR_ADD(op->sym->m_src,
sizeof(struct rte_mbuf));
struct rte_cryptodev_sym_session *session;
- struct virtio_crypto_op_data_req *req;
+ struct virtio_crypto_op_data_req *req, tmp_req;
struct virtio_crypto_inhdr *inhdr;
struct vring_desc *desc = NULL;
uint64_t session_id;
+ uint64_t dlen;
int err = 0;
vc_req->desc_idx = desc_idx;
+ vc_req->dev = vcrypto->dev;
+ vc_req->vq = vq;
if (likely(head->flags & VRING_DESC_F_INDIRECT)) {
- head = GPA_TO_VVA(struct vring_desc *, mem, head->addr);
- if (unlikely(!head))
- return 0;
+ dlen = head->len;
+ desc = IOVA_TO_VVA(struct vring_desc *, vc_req, head->addr,
+ &dlen, VHOST_ACCESS_RO);
+ if (unlikely(!desc || dlen != head->len))
+ return -1;
desc_idx = 0;
+ head = desc;
+ } else {
+ desc = head;
}
- desc = head;
-
- vc_req->mem = mem;
vc_req->head = head;
- vc_req->vq = vq;
-
vc_req->zero_copy = vcrypto->option;
- req = get_data_ptr(head, mem, &desc, sizeof(*req));
+ req = get_data_ptr(vc_req, &desc, sizeof(*req), VHOST_ACCESS_RO);
if (unlikely(req == NULL)) {
- err = VIRTIO_CRYPTO_ERR;
- VC_LOG_ERR("Invalid descriptor");
- goto error_exit;
+ switch (vcrypto->option) {
+ case RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE:
+ err = VIRTIO_CRYPTO_BADMSG;
+ VC_LOG_ERR("Invalid descriptor");
+ goto error_exit;
+ case RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE:
+ req = &tmp_req;
+ if (unlikely(copy_data(req, vc_req, &desc, sizeof(*req))
+ < 0)) {
+ err = VIRTIO_CRYPTO_BADMSG;
+ VC_LOG_ERR("Invalid descriptor");
+ goto error_exit;
+ }
+ break;
+ default:
+ err = VIRTIO_CRYPTO_ERR;
+ VC_LOG_ERR("Invalid option");
+ goto error_exit;
+ }
}
switch (req->header.opcode) {
error_exit:
- inhdr = reach_inhdr(head, mem, desc);
+ inhdr = reach_inhdr(vc_req, desc);
if (likely(inhdr != NULL))
inhdr->status = (uint8_t)err;
return processed;
}
+
+int __rte_experimental
+rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
+ struct rte_mempool *sess_pool, int socket_id)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct rte_hash_parameters params = {0};
+ struct vhost_crypto *vcrypto;
+ char name[128];
+ int ret;
+
+ if (!dev) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ ret = rte_vhost_driver_set_features(dev->ifname,
+ VIRTIO_CRYPTO_FEATURES);
+ if (ret < 0) {
+ VC_LOG_ERR("Error setting features");
+ return -1;
+ }
+
+ vcrypto = rte_zmalloc_socket(NULL, sizeof(*vcrypto),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (!vcrypto) {
+ VC_LOG_ERR("Insufficient memory");
+ return -ENOMEM;
+ }
+
+ vcrypto->sess_pool = sess_pool;
+ vcrypto->cid = cryptodev_id;
+ vcrypto->cache_session_id = UINT64_MAX;
+ vcrypto->last_session_id = 1;
+ vcrypto->dev = dev;
+ vcrypto->option = RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE;
+
+ snprintf(name, 127, "HASH_VHOST_CRYPT_%u", (uint32_t)vid);
+ params.name = name;
+ params.entries = VHOST_CRYPTO_SESSION_MAP_ENTRIES;
+ params.hash_func = rte_jhash;
+ params.key_len = sizeof(uint64_t);
+ params.socket_id = socket_id;
+ vcrypto->session_map = rte_hash_create(¶ms);
+ if (!vcrypto->session_map) {
+ VC_LOG_ERR("Failed to creath session map");
+ ret = -ENOMEM;
+ goto error_exit;
+ }
+
+ snprintf(name, 127, "MBUF_POOL_VM_%u", (uint32_t)vid);
+ vcrypto->mbuf_pool = rte_pktmbuf_pool_create(name,
+ VHOST_CRYPTO_MBUF_POOL_SIZE, 512,
+ sizeof(struct vhost_crypto_data_req),
+ RTE_MBUF_DEFAULT_DATAROOM * 2 + RTE_PKTMBUF_HEADROOM,
+ rte_socket_id());
+ if (!vcrypto->mbuf_pool) {
+ VC_LOG_ERR("Failed to creath mbuf pool");
+ ret = -ENOMEM;
+ goto error_exit;
+ }
+
+ dev->extern_data = vcrypto;
+ dev->extern_ops.pre_msg_handle = NULL;
+ dev->extern_ops.post_msg_handle = vhost_crypto_msg_post_handler;
+
+ return 0;
+
+error_exit:
+ if (vcrypto->session_map)
+ rte_hash_free(vcrypto->session_map);
+ if (vcrypto->mbuf_pool)
+ rte_mempool_free(vcrypto->mbuf_pool);
+
+ rte_free(vcrypto);
+
+ return ret;
+}
+
+int __rte_experimental
+rte_vhost_crypto_free(int vid)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ vcrypto = dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return -ENOENT;
+ }
+
+ rte_hash_free(vcrypto->session_map);
+ rte_mempool_free(vcrypto->mbuf_pool);
+ rte_free(vcrypto);
+
+ dev->extern_data = NULL;
+ dev->extern_ops.pre_msg_handle = NULL;
+ dev->extern_ops.post_msg_handle = NULL;
+
+ return 0;
+}
+
+int __rte_experimental
+rte_vhost_crypto_set_zero_copy(int vid, enum rte_vhost_crypto_zero_copy option)
+{
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ if (unlikely((uint32_t)option >=
+ RTE_VHOST_CRYPTO_MAX_ZERO_COPY_OPTIONS)) {
+ VC_LOG_ERR("Invalid option %i", option);
+ return -EINVAL;
+ }
+
+ vcrypto = (struct vhost_crypto *)dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return -ENOENT;
+ }
+
+ if (vcrypto->option == (uint8_t)option)
+ return 0;
+
+ if (!(rte_mempool_full(vcrypto->mbuf_pool))) {
+ VC_LOG_ERR("Cannot update zero copy as mempool is not full");
+ return -EINVAL;
+ }
+
+ vcrypto->option = (uint8_t)option;
+
+ return 0;
+}
+
+uint16_t __rte_experimental
+rte_vhost_crypto_fetch_requests(int vid, uint32_t qid,
+ struct rte_crypto_op **ops, uint16_t nb_ops)
+{
+ struct rte_mbuf *mbufs[VHOST_CRYPTO_MAX_BURST_SIZE * 2];
+ struct virtio_net *dev = get_device(vid);
+ struct vhost_crypto *vcrypto;
+ struct vhost_virtqueue *vq;
+ uint16_t avail_idx;
+ uint16_t start_idx;
+ uint16_t required;
+ uint16_t count;
+ uint16_t i;
+
+ if (unlikely(dev == NULL)) {
+ VC_LOG_ERR("Invalid vid %i", vid);
+ return -EINVAL;
+ }
+
+ if (unlikely(qid >= VHOST_MAX_QUEUE_PAIRS)) {
+ VC_LOG_ERR("Invalid qid %u", qid);
+ return -EINVAL;
+ }
+
+ vcrypto = (struct vhost_crypto *)dev->extern_data;
+ if (unlikely(vcrypto == NULL)) {
+ VC_LOG_ERR("Cannot find required data, is it initialized?");
+ return -ENOENT;
+ }
+
+ vq = dev->virtqueue[qid];
+
+ avail_idx = *((volatile uint16_t *)&vq->avail->idx);
+ start_idx = vq->last_used_idx;
+ count = avail_idx - start_idx;
+ count = RTE_MIN(count, VHOST_CRYPTO_MAX_BURST_SIZE);
+ count = RTE_MIN(count, nb_ops);
+
+ if (unlikely(count == 0))
+ return 0;
+
+ /* for zero copy, we need 2 empty mbufs for src and dst, otherwise
+ * we need only 1 mbuf as src and dst
+ */
+ required = count * 2;
+ if (unlikely(rte_mempool_get_bulk(vcrypto->mbuf_pool, (void **)mbufs,
+ required) < 0)) {
+ VC_LOG_ERR("Insufficient memory");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < count; i++) {
+ uint16_t used_idx = (start_idx + i) & (vq->size - 1);
+ uint16_t desc_idx = vq->avail->ring[used_idx];
+ struct vring_desc *head = &vq->desc[desc_idx];
+ struct rte_crypto_op *op = ops[i];
+
+ op->sym->m_src = mbufs[i * 2];
+ op->sym->m_dst = mbufs[i * 2 + 1];
+ op->sym->m_src->data_off = 0;
+ op->sym->m_dst->data_off = 0;
+
+ if (unlikely(vhost_crypto_process_one_req(vcrypto, vq, op, head,
+ desc_idx)) < 0)
+ break;
+ }
+
+ vq->last_used_idx += i;
+
+ return i;
+}
+
+uint16_t __rte_experimental
+rte_vhost_crypto_finalize_requests(struct rte_crypto_op **ops,
+ uint16_t nb_ops, int *callfds, uint16_t *nb_callfds)
+{
+ struct rte_crypto_op **tmp_ops = ops;
+ uint16_t count = 0, left = nb_ops;
+ int callfd;
+ uint16_t idx = 0;
+
+ while (left) {
+ count = vhost_crypto_complete_one_vm_requests(tmp_ops, left,
+ &callfd);
+ if (unlikely(count == 0))
+ break;
+
+ tmp_ops = &tmp_ops[count];
+ left -= count;
+
+ callfds[idx++] = callfd;
+
+ if (unlikely(idx >= VIRTIO_CRYPTO_MAX_NUM_BURST_VQS)) {
+ VC_LOG_ERR("Too many vqs");
+ break;
+ }
+ }
+
+ *nb_callfds = idx;
+
+ return nb_ops - left;
+}
git.droids-corp.org / dpdk.git / blobdiff