Cipher length alignment checked for 3DES-CBC and AES-CBC to avoid slice hang error in QAT CPM1.8
Signed-off-by: Sivaramakrishnan VenkatX <venkatx.sivaramakrish...@intel.com> --- drivers/crypto/qat/dev/qat_crypto_pmd_gens.h | 21 ++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h b/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h index cab7e214c0..98504d925f 100644 --- a/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h +++ b/drivers/crypto/qat/dev/qat_crypto_pmd_gens.h @@ -10,6 +10,13 @@ #include "qat_sym_session.h" #include "qat_sym.h" +#define AES_OR_3DES_MISALIGNED (ctx->qat_mode == ICP_QAT_HW_CIPHER_CBC_MODE && \ + ((((ctx->qat_cipher_alg == ICP_QAT_HW_CIPHER_ALGO_AES128) || \ + (ctx->qat_cipher_alg == ICP_QAT_HW_CIPHER_ALGO_AES192) || \ + (ctx->qat_cipher_alg == ICP_QAT_HW_CIPHER_ALGO_AES256)) && \ + (cipher_param->cipher_length % ICP_QAT_HW_AES_BLK_SZ)) || \ + ((ctx->qat_cipher_alg == ICP_QAT_HW_CIPHER_ALGO_3DES) && \ + (cipher_param->cipher_length % ICP_QAT_HW_3DES_BLK_SZ)))) #define QAT_SYM_DP_GET_MAX_ENQ(q, c, n) \ RTE_MIN((q->max_inflights - q->enqueued + q->dequeued - c), n) @@ -699,6 +706,20 @@ enqueue_one_chain_job_gen1(struct qat_sym_session *ctx, cipher_param->cipher_offset = ofs.ofs.cipher.head; cipher_param->cipher_length = cipher_len; + /* Input cipher length alignment requirement for 3DES-CBC and AES-CBC. + * For 3DES-CBC cipher algo, ESP Payload size requires 8 Byte aligned. + * For AES-CBC cipher algo, ESP Payload size requires 16 Byte aligned. + * The alignment should be guaranteed by the ESP package padding field + * according to the RFC4303. Under this condition, QAT will pass through + * chain job as NULL cipher and NULL auth operation and report misalignment + * error detected. + */ + if (AES_OR_3DES_MISALIGNED) { + QAT_LOG(ERR, "Input cipher length alignment error detected.\n"); + ctx->qat_cipher_alg = ICP_QAT_HW_CIPHER_ALGO_NULL; + ctx->qat_hash_alg = ICP_QAT_HW_AUTH_ALGO_NULL; + cipher_param->cipher_length = 0; + } qat_set_cipher_iv(cipher_param, cipher_iv, ctx->cipher_iv.length, req); auth_param->auth_off = ofs.ofs.auth.head; -- 2.25.1