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Diffstat (limited to 'src/vnet/ipsec/esp_encrypt.c')
-rw-r--r--src/vnet/ipsec/esp_encrypt.c123
1 files changed, 58 insertions, 65 deletions
diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index 16bca1da536..1fc53a53317 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -471,13 +471,13 @@ esp_prepare_sync_op (vlib_main_t *vm, ipsec_per_thread_data_t *ptd,
}
}
-static_always_inline int
-esp_prepare_async_frame (vlib_main_t * vm, ipsec_per_thread_data_t * ptd,
- vnet_crypto_async_frame_t ** async_frame,
- ipsec_sa_t * sa, vlib_buffer_t * b,
- esp_header_t * esp, u8 * payload, u32 payload_len,
- u8 iv_sz, u8 icv_sz, u32 bi, u16 next, u32 hdr_len,
- u16 async_next, vlib_buffer_t * lb)
+static_always_inline void
+esp_prepare_async_frame (vlib_main_t *vm, ipsec_per_thread_data_t *ptd,
+ vnet_crypto_async_frame_t *async_frame,
+ ipsec_sa_t *sa, vlib_buffer_t *b, esp_header_t *esp,
+ u8 *payload, u32 payload_len, u8 iv_sz, u8 icv_sz,
+ u32 bi, u16 next, u32 hdr_len, u16 async_next,
+ vlib_buffer_t *lb)
{
esp_post_data_t *post = esp_post_data (b);
u8 *tag, *iv, *aad = 0;
@@ -554,12 +554,11 @@ esp_prepare_async_frame (vlib_main_t * vm, ipsec_per_thread_data_t * ptd,
}
}
- return vnet_crypto_async_add_to_frame (vm, async_frame, key_index,
- crypto_total_len,
- integ_total_len - crypto_total_len,
- crypto_start_offset,
- integ_start_offset, bi, async_next,
- iv, tag, aad, flag);
+ /* this always succeeds because we know the frame is not full */
+ vnet_crypto_async_add_to_frame (vm, async_frame, key_index, crypto_total_len,
+ integ_total_len - crypto_total_len,
+ crypto_start_offset, integ_start_offset, bi,
+ async_next, iv, tag, aad, flag);
}
always_inline uword
@@ -582,9 +581,9 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_buffer_t *lb;
vnet_crypto_op_t **crypto_ops = &ptd->crypto_ops;
vnet_crypto_op_t **integ_ops = &ptd->integ_ops;
- vnet_crypto_async_frame_t *async_frame = 0;
+ vnet_crypto_async_frame_t *async_frames[VNET_CRYPTO_ASYNC_OP_N_IDS];
int is_async = im->async_mode;
- vnet_crypto_async_op_id_t last_async_op = ~0;
+ vnet_crypto_async_op_id_t async_op = ~0;
u16 drop_next =
(lt == VNET_LINK_IP6 ? ESP_ENCRYPT_NEXT_DROP6 :
(lt == VNET_LINK_IP4 ? ESP_ENCRYPT_NEXT_DROP4 :
@@ -603,7 +602,9 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vec_reset_length (ptd->chained_crypto_ops);
vec_reset_length (ptd->chained_integ_ops);
}
+ vec_reset_length (ptd->async_frames);
vec_reset_length (ptd->chunks);
+ clib_memset (async_frames, 0, sizeof (async_frames));
while (n_left > 0)
{
@@ -656,21 +657,28 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
esp_align = sa0->esp_block_align;
icv_sz = sa0->integ_icv_size;
iv_sz = sa0->crypto_iv_size;
+ }
+
+ if (is_async)
+ {
+ async_op = sa0->crypto_async_enc_op_id;
- /* submit frame when op_id is different then the old one */
- if (is_async && sa0->crypto_async_enc_op_id != last_async_op)
+ if (PREDICT_FALSE (async_op == 0))
{
- if (async_frame && async_frame->n_elts)
- {
- if (vnet_crypto_async_submit_open_frame (vm, async_frame))
- esp_async_recycle_failed_submit (async_frame, b, from,
- nexts, &n_async_drop,
- drop_next,
- ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR);
- }
- async_frame =
- vnet_crypto_async_get_frame (vm, sa0->crypto_async_enc_op_id);
- last_async_op = sa0->crypto_async_enc_op_id;
+ esp_set_next_index (is_async, from, nexts, from[b - bufs],
+ &n_async_drop, drop_next, next);
+ goto trace;
+ }
+
+ /* get a frame for this op if we don't yet have one or it's full
+ */
+ if (NULL == async_frames[async_op] ||
+ vnet_crypto_async_frame_is_full (async_frames[async_op]))
+ {
+ async_frames[async_op] =
+ vnet_crypto_async_get_frame (vm, async_op);
+ /* Save the frame to the list we'll submit at the end */
+ vec_add1 (ptd->async_frames, async_frames[async_op]);
}
}
@@ -948,36 +956,14 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
esp->seq = clib_net_to_host_u32 (sa0->seq);
if (is_async)
- {
- if (PREDICT_FALSE (sa0->crypto_async_enc_op_id == 0))
- {
- esp_set_next_index (is_async, from, nexts, from[b - bufs],
- &n_async_drop, drop_next, next);
- goto trace;
- }
-
- if (esp_prepare_async_frame (vm, ptd, &async_frame, sa0, b[0], esp,
- payload, payload_len, iv_sz,
- icv_sz, from[b - bufs], next[0],
- hdr_len, async_next, lb))
- {
- /* The fail only caused by submission, free the whole frame. */
- if (async_frame->n_elts)
- esp_async_recycle_failed_submit (async_frame, b, from, nexts,
- &n_async_drop, drop_next,
- ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR);
- b[0]->error = ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR;
- esp_set_next_index (1, from, nexts, from[b - bufs],
- &n_async_drop, drop_next, next);
- goto trace;
- }
- }
+ esp_prepare_async_frame (vm, ptd, async_frames[async_op], sa0, b[0],
+ esp, payload, payload_len, iv_sz, icv_sz,
+ from[b - bufs], next[0], hdr_len, async_next,
+ lb);
else
- {
esp_prepare_sync_op (vm, ptd, crypto_ops, integ_ops, sa0, payload,
payload_len, iv_sz, icv_sz, bufs, b, lb,
hdr_len, esp);
- }
vlib_buffer_advance (b[0], 0LL - hdr_len);
@@ -1015,29 +1001,36 @@ esp_encrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
esp_process_ops (vm, node, ptd->integ_ops, bufs, nexts, drop_next);
esp_process_chained_ops (vm, node, ptd->chained_integ_ops, bufs, nexts,
ptd->chunks, drop_next);
+
+ vlib_node_increment_counter (
+ vm, node->node_index, ESP_ENCRYPT_ERROR_RX_PKTS, frame->n_vectors);
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
}
else
{
- if (async_frame && async_frame->n_elts)
+ /* submit all of the open frames */
+ vnet_crypto_async_frame_t **async_frame;
+
+ vec_foreach (async_frame, ptd->async_frames)
{
- if (vnet_crypto_async_submit_open_frame (vm, async_frame) < 0)
- esp_async_recycle_failed_submit (async_frame, b, from, nexts,
- &n_async_drop, drop_next,
- ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR);
+ if (vnet_crypto_async_submit_open_frame (vm, *async_frame) < 0)
+ {
+ esp_async_recycle_failed_submit (
+ *async_frame, b, from, nexts, &n_async_drop, drop_next,
+ ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR);
+ vnet_crypto_async_reset_frame (*async_frame);
+ vnet_crypto_async_free_frame (vm, *async_frame);
+ }
}
+
vlib_node_increment_counter (vm, node->node_index,
ESP_ENCRYPT_ERROR_RX_PKTS,
frame->n_vectors);
if (n_async_drop)
vlib_buffer_enqueue_to_next (vm, node, from, nexts, n_async_drop);
-
- return frame->n_vectors;
}
- vlib_node_increment_counter (vm, node->node_index,
- ESP_ENCRYPT_ERROR_RX_PKTS, frame->n_vectors);
-
- vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
return frame->n_vectors;
}