[dpdk-dev] [PATCH 1/3] crypto/dpaa_sec: remove ctx based offset for PA-VA conversion

[Shreyansh Jain]

Crypto requires physical to virtual address conversion for
descriptors. Prior to memory hotplugging this was based on memseg
iteration assuming memsegs are all physical contiguous and using
cached start address fast calculations can be done. This
assumption now stands invalid with memory hotplugging support.

In preparation for supporting hotplugging change to memory,
this patchset removes the optimized pool context stored physical
address offset based PA-VA conversion.

Signed-off-by: Shreyansh Jain <shreyansh.jain at nxp.com>
---

This adversely affects the performance as complete memsegs now need
to be parsed, but a rework containing necessary optimzation would be
posted over this.

 drivers/crypto/dpaa_sec/dpaa_sec.c | 49 ++++++++++++++++----------------------
 1 file changed, 20 insertions(+), 29 deletions(-)

diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index e456fd542..06f7e4373 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -103,13 +103,6 @@ dpaa_mem_vtop(void *vaddr)
 	return (size_t)NULL;
 }
 
-/* virtual address conversin when mempool support is available for ctx */
-static inline phys_addr_t
-dpaa_mem_vtop_ctx(struct dpaa_sec_op_ctx *ctx, void *vaddr)
-{
-	return (size_t)vaddr - ctx->vtop_offset;
-}
-
 static inline void *
 dpaa_mem_ptov(rte_iova_t paddr)
 {
@@ -630,7 +623,7 @@ build_auth_only_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	in_sg->extension = 1;
 	in_sg->final = 1;
 	in_sg->length = sym->auth.data.length;
-	qm_sg_entry_set64(in_sg, dpaa_mem_vtop_ctx(ctx, &cf->sg[2]));
+	qm_sg_entry_set64(in_sg, dpaa_mem_vtop(&cf->sg[2]));
 
 	/* 1st seg */
 	sg = in_sg + 1;
@@ -654,7 +647,7 @@ build_auth_only_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		sg++;
 		rte_memcpy(old_digest, sym->auth.digest.data,
 				ses->digest_length);
-		start_addr = dpaa_mem_vtop_ctx(ctx, old_digest);
+		start_addr = dpaa_mem_vtop(old_digest);
 		qm_sg_entry_set64(sg, start_addr);
 		sg->length = ses->digest_length;
 		in_sg->length += ses->digest_length;
@@ -708,7 +701,7 @@ build_auth_only(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	if (is_decode(ses)) {
 		/* need to extend the input to a compound frame */
 		sg->extension = 1;
-		qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, &cf->sg[2]));
+		qm_sg_entry_set64(sg, dpaa_mem_vtop(&cf->sg[2]));
 		sg->length = sym->auth.data.length + ses->digest_length;
 		sg->final = 1;
 		cpu_to_hw_sg(sg);
@@ -722,7 +715,7 @@ build_auth_only(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		cpu_to_hw_sg(sg);
 
 		/* let's check digest by hw */
-		start_addr = dpaa_mem_vtop_ctx(ctx, old_digest);
+		start_addr = dpaa_mem_vtop(old_digest);
 		sg++;
 		qm_sg_entry_set64(sg, start_addr);
 		sg->length = ses->digest_length;
@@ -775,7 +768,7 @@ build_cipher_only_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	out_sg = &cf->sg[0];
 	out_sg->extension = 1;
 	out_sg->length = sym->cipher.data.length;
-	qm_sg_entry_set64(out_sg, dpaa_mem_vtop_ctx(ctx, &cf->sg[2]));
+	qm_sg_entry_set64(out_sg, dpaa_mem_vtop(&cf->sg[2]));
 	cpu_to_hw_sg(out_sg);
 
 	/* 1st seg */
@@ -804,7 +797,7 @@ build_cipher_only_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	in_sg->length = sym->cipher.data.length + ses->iv.length;
 
 	sg++;
-	qm_sg_entry_set64(in_sg, dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(in_sg, dpaa_mem_vtop(sg));
 	cpu_to_hw_sg(in_sg);
 
 	/* IV */
@@ -871,7 +864,7 @@ build_cipher_only(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	sg->extension = 1;
 	sg->final = 1;
 	sg->length = sym->cipher.data.length + ses->iv.length;
-	qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, &cf->sg[2]));
+	qm_sg_entry_set64(sg, dpaa_mem_vtop(&cf->sg[2]));
 	cpu_to_hw_sg(sg);
 
 	sg = &cf->sg[2];
@@ -937,7 +930,7 @@ build_cipher_auth_gcm_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* output sg entries */
 	sg = &cf->sg[2];
-	qm_sg_entry_set64(out_sg, dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(out_sg, dpaa_mem_vtop(sg));
 	cpu_to_hw_sg(out_sg);
 
 	/* 1st seg */
@@ -981,7 +974,7 @@ build_cipher_auth_gcm_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* input sg entries */
 	sg++;
-	qm_sg_entry_set64(in_sg, dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(in_sg, dpaa_mem_vtop(sg));
 	cpu_to_hw_sg(in_sg);
 
 	/* 1st seg IV */
@@ -1018,7 +1011,7 @@ build_cipher_auth_gcm_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		sg++;
 		memcpy(ctx->digest, sym->aead.digest.data,
 			ses->digest_length);
-		qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, ctx->digest));
+		qm_sg_entry_set64(sg, dpaa_mem_vtop(ctx->digest));
 		sg->length = ses->digest_length;
 	}
 	sg->final = 1;
@@ -1056,7 +1049,7 @@ build_cipher_auth_gcm(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	/* input */
 	rte_prefetch0(cf->sg);
 	sg = &cf->sg[2];
-	qm_sg_entry_set64(&cf->sg[1], dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(&cf->sg[1], dpaa_mem_vtop(sg));
 	if (is_encode(ses)) {
 		qm_sg_entry_set64(sg, dpaa_mem_vtop(IV_ptr));
 		sg->length = ses->iv.length;
@@ -1101,7 +1094,7 @@ build_cipher_auth_gcm(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		       ses->digest_length);
 		sg++;
 
-		qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, ctx->digest));
+		qm_sg_entry_set64(sg, dpaa_mem_vtop(ctx->digest));
 		sg->length = ses->digest_length;
 		length += sg->length;
 		sg->final = 1;
@@ -1115,7 +1108,7 @@ build_cipher_auth_gcm(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* output */
 	sg++;
-	qm_sg_entry_set64(&cf->sg[0], dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(&cf->sg[0], dpaa_mem_vtop(sg));
 	qm_sg_entry_set64(sg,
 		dst_start_addr + sym->aead.data.offset - ses->auth_only_len);
 	sg->length = sym->aead.data.length + ses->auth_only_len;
@@ -1184,7 +1177,7 @@ build_cipher_auth_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* output sg entries */
 	sg = &cf->sg[2];
-	qm_sg_entry_set64(out_sg, dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(out_sg, dpaa_mem_vtop(sg));
 	cpu_to_hw_sg(out_sg);
 
 	/* 1st seg */
@@ -1226,7 +1219,7 @@ build_cipher_auth_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* input sg entries */
 	sg++;
-	qm_sg_entry_set64(in_sg, dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(in_sg, dpaa_mem_vtop(sg));
 	cpu_to_hw_sg(in_sg);
 
 	/* 1st seg IV */
@@ -1256,7 +1249,7 @@ build_cipher_auth_sg(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		sg++;
 		memcpy(ctx->digest, sym->auth.digest.data,
 			ses->digest_length);
-		qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, ctx->digest));
+		qm_sg_entry_set64(sg, dpaa_mem_vtop(ctx->digest));
 		sg->length = ses->digest_length;
 	}
 	sg->final = 1;
@@ -1293,7 +1286,7 @@ build_cipher_auth(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	/* input */
 	rte_prefetch0(cf->sg);
 	sg = &cf->sg[2];
-	qm_sg_entry_set64(&cf->sg[1], dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(&cf->sg[1], dpaa_mem_vtop(sg));
 	if (is_encode(ses)) {
 		qm_sg_entry_set64(sg, dpaa_mem_vtop(IV_ptr));
 		sg->length = ses->iv.length;
@@ -1323,7 +1316,7 @@ build_cipher_auth(struct rte_crypto_op *op, dpaa_sec_session *ses)
 		       ses->digest_length);
 		sg++;
 
-		qm_sg_entry_set64(sg, dpaa_mem_vtop_ctx(ctx, ctx->digest));
+		qm_sg_entry_set64(sg, dpaa_mem_vtop(ctx->digest));
 		sg->length = ses->digest_length;
 		length += sg->length;
 		sg->final = 1;
@@ -1337,7 +1330,7 @@ build_cipher_auth(struct rte_crypto_op *op, dpaa_sec_session *ses)
 
 	/* output */
 	sg++;
-	qm_sg_entry_set64(&cf->sg[0], dpaa_mem_vtop_ctx(ctx, sg));
+	qm_sg_entry_set64(&cf->sg[0], dpaa_mem_vtop(sg));
 	qm_sg_entry_set64(sg, dst_start_addr + sym->cipher.data.offset);
 	sg->length = sym->cipher.data.length;
 	length = sg->length;
@@ -1412,7 +1405,6 @@ dpaa_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,
 	struct rte_crypto_op *op;
 	struct dpaa_sec_job *cf;
 	dpaa_sec_session *ses;
-	struct dpaa_sec_op_ctx *ctx;
 	uint32_t auth_only_len;
 	struct qman_fq *inq[DPAA_SEC_BURST];
 
@@ -1497,8 +1489,7 @@ dpaa_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops,
 			inq[loop] = ses->inq;
 			fd->opaque_addr = 0;
 			fd->cmd = 0;
-			ctx = container_of(cf, struct dpaa_sec_op_ctx, job);
-			qm_fd_addr_set64(fd, dpaa_mem_vtop_ctx(ctx, cf->sg));
+			qm_fd_addr_set64(fd, dpaa_mem_vtop(cf->sg));
 			fd->_format1 = qm_fd_compound;
 			fd->length29 = 2 * sizeof(struct qm_sg_entry);
 			/* Auth_only_len is set as 0 in descriptor and it is
-- 
2.14.1