X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fcommon%2Fcpt%2Fcpt_ucode_asym.h;h=00e01b5e9c5a9eb2a8e66479fa2062980cc73db8;hb=a5d668e6376db327fda591067d929c314466bd8f;hp=e0311f1387e3b2b4461f49d5ee44fbbbad6c43ff;hpb=33bcaae5f85ad805ee287bee42013e61a1cff6fa;p=dpdk.git

diff --git a/drivers/common/cpt/cpt_ucode_asym.h b/drivers/common/cpt/cpt_ucode_asym.h
index e0311f1387..00e01b5e9c 100644
--- a/drivers/common/cpt/cpt_ucode_asym.h
+++ b/drivers/common/cpt/cpt_ucode_asym.h
@@ -9,6 +9,8 @@
 #include <rte_crypto_asym.h>
 #include <rte_malloc.h>
 
+#include "cpt_common.h"
+#include "cpt_hw_types.h"
 #include "cpt_mcode_defines.h"
 
 static __rte_always_inline void
@@ -168,4 +170,284 @@ cpt_free_asym_session_parameters(struct cpt_asym_sess_misc *sess)
 	}
 }
 
+static __rte_always_inline void
+cpt_fill_req_comp_addr(struct cpt_request_info *req, buf_ptr_t addr)
+{
+	void *completion_addr = RTE_PTR_ALIGN(addr.vaddr, 16);
+
+	/* Pointer to cpt_res_s, updated by CPT */
+	req->completion_addr = (volatile uint64_t *)completion_addr;
+	req->comp_baddr = addr.dma_addr +
+			  RTE_PTR_DIFF(completion_addr, addr.vaddr);
+	*(req->completion_addr) = COMPLETION_CODE_INIT;
+}
+
+static __rte_always_inline int
+cpt_modex_prep(struct asym_op_params *modex_params,
+	       struct rte_crypto_modex_xform *mod)
+{
+	struct cpt_request_info *req = modex_params->req;
+	phys_addr_t mphys = modex_params->meta_buf;
+	uint32_t exp_len = mod->exponent.length;
+	uint32_t mod_len = mod->modulus.length;
+	struct rte_crypto_mod_op_param mod_op;
+	struct rte_crypto_op **op;
+	vq_cmd_word0_t vq_cmd_w0;
+	uint64_t total_key_len;
+	opcode_info_t opcode;
+	uint32_t dlen, rlen;
+	uint32_t base_len;
+	buf_ptr_t caddr;
+	uint8_t *dptr;
+
+	/* Extracting modex op form params->req->op[1]->asym->modex */
+	op = RTE_PTR_ADD(req->op, sizeof(uintptr_t));
+	mod_op = ((struct rte_crypto_op *)*op)->asym->modex;
+
+	base_len = mod_op.base.length;
+	if (unlikely(base_len > mod_len)) {
+		CPT_LOG_DP_ERR("Base length greater than modulus length is not supported");
+		(*op)->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+		return -ENOTSUP;
+	}
+
+	total_key_len = mod_len + exp_len;
+
+	/* Input buffer */
+	dptr = RTE_PTR_ADD(req, sizeof(struct cpt_request_info));
+	memcpy(dptr, mod->modulus.data, total_key_len);
+	dptr += total_key_len;
+	memcpy(dptr, mod_op.base.data, base_len);
+	dptr += base_len;
+	dlen = total_key_len + base_len;
+
+	/* Result buffer */
+	rlen = mod_len;
+
+	/* Setup opcodes */
+	opcode.s.major = CPT_MAJOR_OP_MODEX;
+	opcode.s.minor = CPT_MINOR_OP_MODEX;
+	vq_cmd_w0.s.opcode = opcode.flags;
+
+	/* GP op header */
+	vq_cmd_w0.s.param1 = mod_len;
+	vq_cmd_w0.s.param2 = exp_len;
+	vq_cmd_w0.s.dlen = dlen;
+
+	/* Filling cpt_request_info structure */
+	req->ist.ei0 = vq_cmd_w0.u64;
+	req->ist.ei1 = mphys;
+	req->ist.ei2 = mphys + dlen;
+
+	/* Result pointer to store result data */
+	req->rptr = dptr;
+
+	/* alternate_caddr to write completion status of the microcode */
+	req->alternate_caddr = (uint64_t *)(dptr + rlen);
+	*req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT);
+
+	/* Preparing completion addr, +1 for completion code */
+	caddr.vaddr = dptr + rlen + 1;
+	caddr.dma_addr = mphys + dlen + rlen + 1;
+
+	cpt_fill_req_comp_addr(req, caddr);
+	return 0;
+}
+
+static __rte_always_inline void
+cpt_rsa_prep(struct asym_op_params *rsa_params,
+	     struct rte_crypto_rsa_xform *rsa,
+	     rte_crypto_param *crypto_param)
+{
+	struct cpt_request_info *req = rsa_params->req;
+	phys_addr_t mphys = rsa_params->meta_buf;
+	struct rte_crypto_rsa_op_param rsa_op;
+	uint32_t mod_len = rsa->n.length;
+	uint32_t exp_len = rsa->e.length;
+	struct rte_crypto_op **op;
+	vq_cmd_word0_t vq_cmd_w0;
+	uint64_t total_key_len;
+	opcode_info_t opcode;
+	uint32_t dlen, rlen;
+	uint32_t in_size;
+	buf_ptr_t caddr;
+	uint8_t *dptr;
+
+	/* Extracting rsa op form params->req->op[1]->asym->rsa */
+	op = RTE_PTR_ADD(req->op, sizeof(uintptr_t));
+	rsa_op = ((struct rte_crypto_op *)*op)->asym->rsa;
+	total_key_len  = mod_len + exp_len;
+
+	/* Input buffer */
+	dptr = RTE_PTR_ADD(req, sizeof(struct cpt_request_info));
+	memcpy(dptr, rsa->n.data, total_key_len);
+	dptr += total_key_len;
+
+	in_size = crypto_param->length;
+	memcpy(dptr, crypto_param->data, in_size);
+
+	dptr += in_size;
+	dlen = total_key_len + in_size;
+
+	/* Result buffer */
+	rlen = mod_len;
+
+	if (rsa_op.pad == RTE_CRYPTO_RSA_PADDING_NONE) {
+		/* Use mod_exp operation for no_padding type */
+		opcode.s.minor = CPT_MINOR_OP_MODEX;
+		vq_cmd_w0.s.param2 = exp_len;
+	} else {
+		if (rsa_op.op_type == RTE_CRYPTO_ASYM_OP_ENCRYPT) {
+			opcode.s.minor = CPT_MINOR_OP_PKCS_ENC;
+			/* Public key encrypt, use BT2*/
+			vq_cmd_w0.s.param2 = CPT_BLOCK_TYPE2 |
+					((uint16_t)(exp_len) << 1);
+		} else if (rsa_op.op_type == RTE_CRYPTO_ASYM_OP_VERIFY) {
+			opcode.s.minor = CPT_MINOR_OP_PKCS_DEC;
+			/* Public key decrypt, use BT1 */
+			vq_cmd_w0.s.param2 = CPT_BLOCK_TYPE1;
+			/* + 2 for decrypted len */
+			rlen += 2;
+		}
+	}
+
+	/* Setup opcodes */
+	opcode.s.major = CPT_MAJOR_OP_MODEX;
+	vq_cmd_w0.s.opcode = opcode.flags;
+
+	/* GP op header */
+	vq_cmd_w0.s.param1 = mod_len;
+	vq_cmd_w0.s.dlen = dlen;
+
+	/* Filling cpt_request_info structure */
+	req->ist.ei0 = vq_cmd_w0.u64;
+	req->ist.ei1 = mphys;
+	req->ist.ei2 = mphys + dlen;
+
+	/* Result pointer to store result data */
+	req->rptr = dptr;
+
+	/* alternate_caddr to write completion status of the microcode */
+	req->alternate_caddr = (uint64_t *)(dptr + rlen);
+	*req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT);
+
+	/* Preparing completion addr, +1 for completion code */
+	caddr.vaddr = dptr + rlen + 1;
+	caddr.dma_addr = mphys + dlen + rlen + 1;
+
+	cpt_fill_req_comp_addr(req, caddr);
+}
+
+static __rte_always_inline void
+cpt_rsa_crt_prep(struct asym_op_params *rsa_params,
+		 struct rte_crypto_rsa_xform *rsa,
+		 rte_crypto_param *crypto_param)
+{
+	struct cpt_request_info *req = rsa_params->req;
+	phys_addr_t mphys = rsa_params->meta_buf;
+	uint32_t qInv_len = rsa->qt.qInv.length;
+	struct rte_crypto_rsa_op_param rsa_op;
+	uint32_t dP_len = rsa->qt.dP.length;
+	uint32_t dQ_len = rsa->qt.dQ.length;
+	uint32_t p_len = rsa->qt.p.length;
+	uint32_t q_len = rsa->qt.q.length;
+	uint32_t mod_len = rsa->n.length;
+	struct rte_crypto_op **op;
+	vq_cmd_word0_t vq_cmd_w0;
+	uint64_t total_key_len;
+	opcode_info_t opcode;
+	uint32_t dlen, rlen;
+	uint32_t in_size;
+	buf_ptr_t caddr;
+	uint8_t *dptr;
+
+	/* Extracting rsa op form params->req->op[1]->asym->rsa */
+	op = RTE_PTR_ADD(req->op, sizeof(uintptr_t));
+	rsa_op = ((struct rte_crypto_op *)*op)->asym->rsa;
+	total_key_len = p_len + q_len + dP_len + dQ_len + qInv_len;
+
+	/* Input buffer */
+	dptr = RTE_PTR_ADD(req, sizeof(struct cpt_request_info));
+	memcpy(dptr, rsa->qt.q.data, total_key_len);
+	dptr += total_key_len;
+
+	in_size = crypto_param->length;
+	memcpy(dptr, crypto_param->data, in_size);
+
+	dptr += in_size;
+	dlen = total_key_len + in_size;
+
+	/* Result buffer */
+	rlen = mod_len;
+
+	if (rsa_op.pad == RTE_CRYPTO_RSA_PADDING_NONE) {
+		/*Use mod_exp operation for no_padding type */
+		opcode.s.minor = CPT_MINOR_OP_MODEX_CRT;
+	} else {
+		if (rsa_op.op_type == RTE_CRYPTO_ASYM_OP_SIGN) {
+			opcode.s.minor = CPT_MINOR_OP_PKCS_ENC_CRT;
+			/* Private encrypt, use BT1 */
+			vq_cmd_w0.s.param2 = CPT_BLOCK_TYPE1;
+		} else if (rsa_op.op_type == RTE_CRYPTO_ASYM_OP_DECRYPT) {
+			opcode.s.minor = CPT_MINOR_OP_PKCS_DEC_CRT;
+			/* Private decrypt, use BT2 */
+			vq_cmd_w0.s.param2 = CPT_BLOCK_TYPE2;
+			/* + 2 for decrypted len */
+			rlen += 2;
+		}
+	}
+
+	/* Setup opcodes */
+	opcode.s.major = CPT_MAJOR_OP_MODEX;
+	vq_cmd_w0.s.opcode = opcode.flags;
+
+	/* GP op header */
+	vq_cmd_w0.s.param1 = mod_len;
+	vq_cmd_w0.s.dlen = dlen;
+
+	/* Filling cpt_request_info structure */
+	req->ist.ei0 = vq_cmd_w0.u64;
+	req->ist.ei1 = mphys;
+	req->ist.ei2 = mphys + dlen;
+
+	/* Result pointer to store result data */
+	req->rptr = dptr;
+
+	/* alternate_caddr to write completion status of the microcode */
+	req->alternate_caddr = (uint64_t *)(dptr + rlen);
+	*req->alternate_caddr = ~((uint64_t)COMPLETION_CODE_INIT);
+
+	/* Preparing completion addr, +1 for completion code */
+	caddr.vaddr = dptr + rlen + 1;
+	caddr.dma_addr = mphys + dlen + rlen + 1;
+
+	cpt_fill_req_comp_addr(req, caddr);
+}
+
+static __rte_always_inline int __hot
+cpt_enqueue_rsa_op(struct rte_crypto_op *op,
+	       struct asym_op_params *params,
+	       struct cpt_asym_sess_misc *sess)
+{
+	struct rte_crypto_rsa_op_param *rsa = &op->asym->rsa;
+
+	switch (rsa->op_type) {
+	case RTE_CRYPTO_ASYM_OP_VERIFY:
+		cpt_rsa_prep(params, &sess->rsa_ctx, &rsa->sign);
+		break;
+	case RTE_CRYPTO_ASYM_OP_ENCRYPT:
+		cpt_rsa_prep(params, &sess->rsa_ctx, &rsa->message);
+		break;
+	case RTE_CRYPTO_ASYM_OP_SIGN:
+		cpt_rsa_crt_prep(params, &sess->rsa_ctx, &rsa->message);
+		break;
+	case RTE_CRYPTO_ASYM_OP_DECRYPT:
+		cpt_rsa_crt_prep(params, &sess->rsa_ctx, &rsa->cipher);
+		break;
+	default:
+		op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+		return -EINVAL;
+	}
+	return 0;
+}
 #endif /* _CPT_UCODE_ASYM_H_ */