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authorFan Zhang <roy.fan.zhang@intel.com>2019-11-04 15:56:55 +0000
committerDamjan Marion <dmarion@me.com>2019-11-07 22:34:56 +0000
commit76a36e83e39cbf7828a647d8afadfaef642e1c84 (patch)
tree5256dd0e56cd6918be1a43d98ee8e3224dcf5d29 /src/plugins/crypto_ipsecmb/ipsecmb.c
parent801c7016ad90e5f5618f523b3f9284daee0b696c (diff)
crypto-ipsecmb: improve gcm performance using dedicated API.
This patch improves the GCM encrypt and decrypt performance using the dedicated API provided by intel-ipsec-mb library. This helps remove the overhead caused by the JOB API. Type: feature Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com> Change-Id: I00c9ab3ed9f2660093fb2584feb8bca4979acee8
Diffstat (limited to 'src/plugins/crypto_ipsecmb/ipsecmb.c')
-rw-r--r--src/plugins/crypto_ipsecmb/ipsecmb.c142
1 files changed, 54 insertions, 88 deletions
diff --git a/src/plugins/crypto_ipsecmb/ipsecmb.c b/src/plugins/crypto_ipsecmb/ipsecmb.c
index 7428e99171f..30f53389553 100644
--- a/src/plugins/crypto_ipsecmb/ipsecmb.c
+++ b/src/plugins/crypto_ipsecmb/ipsecmb.c
@@ -261,101 +261,67 @@ ipsecmb_ops_cbc_cipher_dec_##a (vlib_main_t * vm, \
foreach_ipsecmb_cbc_cipher_op;
#undef _
-always_inline void
-ipsecmb_retire_gcm_cipher_job (JOB_AES_HMAC * job,
- u32 * n_fail, JOB_CIPHER_DIRECTION direction)
-{
- vnet_crypto_op_t *op = job->user_data;
-
- if (STS_COMPLETED != job->status)
- {
- op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
- *n_fail = *n_fail + 1;
- return;
- }
- else
- op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
-
- if (DECRYPT == direction)
- {
- if ((memcmp (op->tag, job->auth_tag_output, op->tag_len)))
- {
- *n_fail = *n_fail + 1;
- op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
- }
- }
-}
-
-static_always_inline u32
-ipsecmb_ops_gcm_cipher_inline (vlib_main_t * vm, vnet_crypto_op_t * ops[],
- u32 n_ops, u32 key_len,
- JOB_CIPHER_DIRECTION direction)
-{
- ipsecmb_main_t *imbm = &ipsecmb_main;
- ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,
- vm->thread_index);
- JOB_AES_HMAC *job;
- u32 i, n_fail = 0;
- u8 scratch[n_ops][64];
-
- /*
- * queue all the jobs first ...
- */
- for (i = 0; i < n_ops; i++)
- {
- struct gcm_key_data *kd;
- vnet_crypto_op_t *op = ops[i];
- kd = (struct gcm_key_data *) imbm->key_data[op->key_index];
-
- job = IMB_GET_NEXT_JOB (ptd->mgr);
-
- job->src = op->src;
- job->dst = op->dst;
- job->msg_len_to_cipher_in_bytes = op->len;
- job->cipher_start_src_offset_in_bytes = 0;
-
- job->hash_alg = AES_GMAC;
- job->cipher_mode = GCM;
- job->cipher_direction = direction;
- job->chain_order = (direction == ENCRYPT ? CIPHER_HASH : HASH_CIPHER);
-
- job->iv = op->iv;
- job->aes_key_len_in_bytes = key_len / 8;
- job->aes_enc_key_expanded = kd;
- job->aes_dec_key_expanded = kd;
- job->iv_len_in_bytes = 12;
-
- job->u.GCM.aad = op->aad;
- job->u.GCM.aad_len_in_bytes = op->aad_len;
- job->auth_tag_output_len_in_bytes = op->tag_len;
- if (DECRYPT == direction)
- job->auth_tag_output = scratch[i];
- else
- job->auth_tag_output = op->tag;
- job->user_data = op;
-
- job = IMB_SUBMIT_JOB (ptd->mgr);
-
- if (job)
- ipsecmb_retire_gcm_cipher_job (job, &n_fail, direction);
- }
-
- while ((job = IMB_FLUSH_JOB (ptd->mgr)))
- ipsecmb_retire_gcm_cipher_job (job, &n_fail, direction);
-
- return n_ops - n_fail;
-}
-
#define _(a, b) \
static_always_inline u32 \
ipsecmb_ops_gcm_cipher_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \
u32 n_ops) \
-{ return ipsecmb_ops_gcm_cipher_inline (vm, ops, n_ops, b, ENCRYPT); } \
+{ \
+ ipsecmb_main_t *imbm = &ipsecmb_main; \
+ ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data, \
+ vm->thread_index); \
+ MB_MGR *m = ptd->mgr; \
+ u32 i; \
+ \
+ for (i = 0; i < n_ops; i++) \
+ { \
+ struct gcm_key_data *kd; \
+ struct gcm_context_data ctx; \
+ vnet_crypto_op_t *op = ops[i]; \
+ \
+ kd = (struct gcm_key_data *) imbm->key_data[op->key_index]; \
+ IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len); \
+ IMB_AES##b##_GCM_ENC_UPDATE(m, kd, &ctx, op->dst, op->src, op->len); \
+ IMB_AES##b##_GCM_ENC_FINALIZE(m, kd, &ctx, op->tag, op->tag_len); \
+ \
+ op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; \
+ } \
+ \
+ return n_ops; \
+} \
\
static_always_inline u32 \
ipsecmb_ops_gcm_cipher_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \
- u32 n_ops) \
-{ return ipsecmb_ops_gcm_cipher_inline (vm, ops, n_ops, b, DECRYPT); } \
+ u32 n_ops) \
+{ \
+ ipsecmb_main_t *imbm = &ipsecmb_main; \
+ ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data, \
+ vm->thread_index); \
+ MB_MGR *m = ptd->mgr; \
+ u32 i, n_failed = 0; \
+ \
+ for (i = 0; i < n_ops; i++) \
+ { \
+ struct gcm_key_data *kd; \
+ struct gcm_context_data ctx; \
+ vnet_crypto_op_t *op = ops[i]; \
+ u8 scratch[64]; \
+ \
+ kd = (struct gcm_key_data *) imbm->key_data[op->key_index]; \
+ IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len); \
+ IMB_AES##b##_GCM_DEC_UPDATE(m, kd, &ctx, op->dst, op->src, op->len); \
+ IMB_AES##b##_GCM_DEC_FINALIZE(m, kd, &ctx, scratch, op->tag_len); \
+ \
+ if ((memcmp (op->tag, scratch, op->tag_len))) \
+ { \
+ op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC; \
+ n_failed++; \
+ } \
+ else \
+ op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; \
+ } \
+ \
+ return n_ops - n_failed; \
+}
foreach_ipsecmb_gcm_cipher_op;
#undef _