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* [dpdk-dev] [PATCH] compress/isal: add chained mbuf support
@ 2018-07-05 11:03 Lee Daly
  2018-07-11 12:40 ` [dpdk-dev] [PATCH v2] " Lee, Daly
  0 siblings, 1 reply; 8+ messages in thread
From: Lee Daly @ 2018-07-05 11:03 UTC (permalink / raw)
  To: pablo.de.lara.guarch; +Cc: dev, Lee Daly

This patch adds chained mbuf support for input or output buffers
during compression/decompression operations.

Signed-off-by: Lee Daly <lee.daly@intel.com>
---
 doc/guides/compressdevs/features/isal.ini     |   2 +-
 doc/guides/compressdevs/isal.rst              |   2 -
 drivers/compress/isal/isal_compress_pmd.c     | 224 +++++++++++++++++++++-----
 drivers/compress/isal/isal_compress_pmd_ops.c |   3 +-
 4 files changed, 187 insertions(+), 44 deletions(-)

diff --git a/doc/guides/compressdevs/features/isal.ini b/doc/guides/compressdevs/features/isal.ini
index ad2718d..0966e69 100644
--- a/doc/guides/compressdevs/features/isal.ini
+++ b/doc/guides/compressdevs/features/isal.ini
@@ -12,7 +12,7 @@ CPU AVX512     = Y
 CPU NEON       =
 Stateful       =
 By-Pass        =
-Chained mbufs  =
+Chained mbufs  = Y
 Deflate        = Y
 LZS            =
 Adler32        =
diff --git a/doc/guides/compressdevs/isal.rst b/doc/guides/compressdevs/isal.rst
index 276ff06..3bc3022 100644
--- a/doc/guides/compressdevs/isal.rst
+++ b/doc/guides/compressdevs/isal.rst
@@ -78,8 +78,6 @@ As a result the level mappings from the API to the PMD are shown below.
 Limitations
 -----------
 
-* Chained mbufs will not be supported until a future release, meaning max data size being passed to PMD through a single mbuf is 64K - 1. If data is larger than this it will need to be split up and sent as multiple operations.
-
 * Compressdev level 0, no compression, is not supported.
 
 * Checksums will not be supported until future release.
diff --git a/drivers/compress/isal/isal_compress_pmd.c b/drivers/compress/isal/isal_compress_pmd.c
index 0f025a3..1ec2d98 100644
--- a/drivers/compress/isal/isal_compress_pmd.c
+++ b/drivers/compress/isal/isal_compress_pmd.c
@@ -188,6 +188,120 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
 	return 0;
 }
 
+/* Compression using chained mbufs for input/output data */
+static int
+chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t consumed_data;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	qp->stream->avail_in = src->data_len;
+	while (qp->stream->internal_state.state != ZSTATE_END) {
+		/* Last segment of data */
+		if (remaining_data <= src->data_len)
+			qp->stream->end_of_stream = 1;
+
+		/* Execute compression operation */
+		ret = isal_deflate(qp->stream);
+		op->produced = qp->stream->total_out;
+		consumed_data = src->data_len - qp->stream->avail_in;
+		remaining_data -= consumed_data;
+
+		if (ret != COMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->stream->avail_in == 0 &&
+				qp->stream->total_in != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->stream->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->stream->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			}
+		}
+
+		if (qp->stream->avail_out == 0 &&
+				qp->stream->internal_state.state != ZSTATE_END) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->stream->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->stream->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n"
+					"Output Produced: %d\n", op->produced);
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+	op->consumed = qp->stream->total_in;
+
+	return 0;
+}
+
+/* Decompression using chained mbufs for input/output data */
+static int
+chained_mbuf_decompression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t consumed_data;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	qp->state->avail_in = src->data_len;
+	while (qp->state->block_state != ISAL_BLOCK_FINISH) {
+
+		ret = isal_inflate(qp->state);
+		op->produced = qp->state->total_out;
+		consumed_data = src->data_len - qp->state->avail_in;
+		op->consumed += consumed_data;
+		remaining_data -= consumed_data;
+
+		if (ret != ISAL_DECOMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->state->avail_in == 0 &&
+				op->consumed != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->state->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->state->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			}
+		}
+
+		if (qp->state->avail_out == 0) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->state->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->state->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}
+
 /* Stateless Compression Function */
 static int
 process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
@@ -212,11 +326,9 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 	qp->stream->level_buf_size = priv_xform->level_buffer_size;
 
 	/* Point compression stream structure to input/output buffers */
-	qp->stream->avail_in = op->src.length;
 	qp->stream->next_in = rte_pktmbuf_mtod(op->m_src, uint8_t *);
 	qp->stream->avail_out = op->m_dst->data_len;
 	qp->stream->next_out  = rte_pktmbuf_mtod(op->m_dst, uint8_t *);
-	qp->stream->end_of_stream = 1; /* All input consumed in one go */
 
 	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
 		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
@@ -224,6 +336,12 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 		return -1;
 	}
 
+	if (op->m_src->pkt_len < op->src.length) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
+		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+		return -1;
+	}
+
 	/* Set op huffman code */
 	if (priv_xform->compress.deflate.huffman == RTE_COMP_HUFFMAN_FIXED)
 		isal_deflate_set_hufftables(qp->stream, NULL,
@@ -238,30 +356,43 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 		isal_deflate_set_hufftables(qp->stream, NULL,
 				IGZIP_HUFFTABLE_DEFAULT);
 
-	/* Execute compression operation */
-	ret =  isal_deflate_stateless(qp->stream);
 
-	/* Check that output buffer did not run out of space */
-	if (ret == STATELESS_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+	/* Chained mbuf input/output */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_compression(op, qp);
+		if (ret < 0)
+			return ret;
+	} else {
+		/* All input consumed in one go */
+		qp->stream->end_of_stream = 1;
+		qp->stream->avail_in = op->src.length;
+
+		/* Execute compression operation */
+		ret =  isal_deflate_stateless(qp->stream);
+
+		/* Check that output buffer did not run out of space */
+		if (ret == STATELESS_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->stream->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->stream->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR,
+		"Input buffer could not be read entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != COMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
-	}
+		if (ret != COMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 
-	op->consumed = qp->stream->total_in;
-	op->produced = qp->stream->total_out;
+		op->consumed = qp->stream->total_in;
+		op->produced = qp->stream->total_out;
+	}
 
 	return ret;
 }
@@ -289,31 +420,43 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
 		return -1;
 	}
 
-	/* Execute decompression operation */
-	ret = isal_inflate_stateless(qp->state);
-
-	if (ret == ISAL_OUT_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
-
-	/* Check that input buffer has been fully consumed */
-	if (qp->state->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
+	if (op->m_src->pkt_len < op->src.length) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
+		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
 
-	if (ret != ISAL_DECOMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
-	}
+	/* Chained mbuf input/output */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_decompression(op, qp);
+		if (ret < 0)
+			return ret;
+	} else {
+		/* Execute decompression operation */
+		ret = isal_inflate_stateless(qp->state);
+
+		if (ret == ISAL_OUT_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
+		/* Check that input buffer has been fully consumed */
+		if (qp->state->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
+
+		if (ret != ISAL_DECOMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+	}
 	op->consumed = op->src.length - qp->state->avail_in;
 	op->produced = qp->state->total_out;
 
-return ret;
+	return ret;
 }
 
 /* Process compression/decompression operation */
@@ -353,6 +496,7 @@ isal_comp_pmd_enqueue_burst(void *queue_pair, struct rte_comp_op **ops,
 			continue;
 		}
 		retval = process_op(qp, ops[i], ops[i]->private_xform);
+
 		if (unlikely(retval < 0) ||
 				ops[i]->status != RTE_COMP_OP_STATUS_SUCCESS) {
 			qp->qp_stats.enqueue_err_count++;
diff --git a/drivers/compress/isal/isal_compress_pmd_ops.c b/drivers/compress/isal/isal_compress_pmd_ops.c
index 970a041..cf7bc6c 100644
--- a/drivers/compress/isal/isal_compress_pmd_ops.c
+++ b/drivers/compress/isal/isal_compress_pmd_ops.c
@@ -12,7 +12,8 @@
 static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
 	{
 		.algo = RTE_COMP_ALGO_DEFLATE,
-		.comp_feature_flags =	RTE_COMP_FF_SHAREABLE_PRIV_XFORM,
+		.comp_feature_flags =	RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+					RTE_COMP_FF_MBUF_SCATTER_GATHER,
 		.window_size = {
 			.min = 15,
 			.max = 15,
-- 
2.7.4

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [dpdk-dev] [PATCH v2] compress/isal: add chained mbuf support
  2018-07-05 11:03 [dpdk-dev] [PATCH] compress/isal: add chained mbuf support Lee Daly
@ 2018-07-11 12:40 ` Lee, Daly
  2018-07-20 10:38   ` De Lara Guarch, Pablo
  2018-07-23 18:02   ` [dpdk-dev] [PATCH v3] " Daly, Lee
  0 siblings, 2 replies; 8+ messages in thread
From: Lee, Daly @ 2018-07-11 12:40 UTC (permalink / raw)
  To: pablo.de.lara.guarch; +Cc: dev, Lee, Daly

This patch adds chained mbuf support for input or output buffers
during compression/decompression operations.

V2 - Fixed using chained mbufs with offsets.

Signed-off-by: Lee Daly <lee.daly@intel.com>
---
 doc/guides/compressdevs/features/isal.ini     |   1 +
 doc/guides/compressdevs/isal.rst              |   2 -
 drivers/compress/isal/isal_compress_pmd.c     | 397 ++++++++++++++++++++------
 drivers/compress/isal/isal_compress_pmd_ops.c |   5 +-
 4 files changed, 321 insertions(+), 84 deletions(-)

diff --git a/doc/guides/compressdevs/features/isal.ini b/doc/guides/compressdevs/features/isal.ini
index 7183d10..06a95fb 100644
--- a/doc/guides/compressdevs/features/isal.ini
+++ b/doc/guides/compressdevs/features/isal.ini
@@ -8,6 +8,7 @@ CPU SSE        = Y
 CPU AVX        = Y
 CPU AVX2       = Y
 CPU AVX512     = Y
+Chained mbufs  = Y
 Deflate        = Y
 Fixed          = Y
 Dynamic        = Y
diff --git a/doc/guides/compressdevs/isal.rst b/doc/guides/compressdevs/isal.rst
index 276ff06..3bc3022 100644
--- a/doc/guides/compressdevs/isal.rst
+++ b/doc/guides/compressdevs/isal.rst
@@ -78,8 +78,6 @@ As a result the level mappings from the API to the PMD are shown below.
 Limitations
 -----------
 
-* Chained mbufs will not be supported until a future release, meaning max data size being passed to PMD through a single mbuf is 64K - 1. If data is larger than this it will need to be split up and sent as multiple operations.
-
 * Compressdev level 0, no compression, is not supported.
 
 * Checksums will not be supported until future release.
diff --git a/drivers/compress/isal/isal_compress_pmd.c b/drivers/compress/isal/isal_compress_pmd.c
index 747ded1..70231c4 100644
--- a/drivers/compress/isal/isal_compress_pmd.c
+++ b/drivers/compress/isal/isal_compress_pmd.c
@@ -188,6 +188,211 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
 	return 0;
 }
 
+/* Compression using chained mbufs for input/output data */
+static int
+chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret, i;
+	uint8_t segs;
+	uint32_t consumed_data;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for offset passing multiple segments
+	 * and point compression stream to input/output buffer
+	 */
+	if (op->src.offset > src->data_len) {
+		segs = op->src.offset / src->data_len;
+		for (i = 0; i < segs; i++)
+			src = src->next;
+
+		qp->stream->avail_in = src->data_len -
+				(op->src.offset % src->data_len);
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				(op->src.offset % src->data_len));
+	} else {
+		qp->stream->avail_in = src->data_len - op->src.offset;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				op->src.offset);
+	}
+
+	if (op->dst.offset > dst->data_len) {
+		segs = op->dst.offset / dst->data_len;
+		for (int i = 0; i < segs; i++)
+			dst = dst->next;
+
+		qp->stream->avail_out = dst->data_len -
+				(op->dst.offset % dst->data_len);
+		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				(op->dst.offset % dst->data_len));
+	} else {
+		qp->stream->avail_out = dst->data_len - op->dst.offset;
+		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				op->dst.offset);
+	}
+
+	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+		ISAL_PMD_LOG(ERR, "Invalid source or destination buffer\n");
+		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+		return -1;
+	}
+
+	while (qp->stream->internal_state.state != ZSTATE_END) {
+		/* Last segment of data */
+		if (remaining_data <= src->data_len)
+			qp->stream->end_of_stream = 1;
+
+		/* Execute compression operation */
+		ret = isal_deflate(qp->stream);
+
+		if (remaining_data == op->src.length) {
+			consumed_data = src->data_len - qp->stream->avail_in -
+					(op->src.offset % src->data_len);
+		} else
+			consumed_data = src->data_len - qp->stream->avail_in;
+
+		remaining_data -= consumed_data;
+
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->stream->avail_in == 0 &&
+				qp->stream->total_in != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->stream->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->stream->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough input buffer segments\n"
+					"Output Produced: %d\n", op->produced);
+				op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+				return -1;
+			}
+		}
+
+		if (qp->stream->avail_out == 0 &&
+				qp->stream->internal_state.state != ZSTATE_END) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->stream->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->stream->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n"
+					"Output Produced: %d\n", op->produced);
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+	op->consumed = qp->stream->total_in;
+	op->produced = qp->stream->total_out;
+
+	return 0;
+}
+
+/* Decompression using chained mbufs for input/output data */
+static int
+chained_mbuf_decompression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret, i;
+	uint8_t segs;
+	uint32_t consumed_data;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for offset passing multiple segments
+	 * and point decompression state to input/output buffer
+	 */
+	if (op->src.offset > src->data_len) {
+		segs = op->src.offset / src->data_len;
+		for (i = 0; i < segs; i++)
+			src = src->next;
+
+		qp->state->avail_in =
+				src->data_len - (op->src.offset % src->data_len);
+		qp->state->next_in = rte_pktmbuf_mtod_offset(src,
+				uint8_t *, (op->src.offset % src->data_len));
+	} else {
+		qp->state->avail_in = src->data_len - op->src.offset;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				op->src.offset);
+	}
+	if (op->dst.offset > dst->data_len) {
+		segs = op->dst.offset / dst->data_len;
+		for (i = 0; i < segs; i++)
+			dst = dst->next;
+
+		qp->state->avail_out =
+				dst->data_len - (op->dst.offset % dst->data_len);
+		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				(op->dst.offset % dst->data_len));
+	} else {
+		qp->state->avail_out = dst->data_len - op->dst.offset;
+		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				op->dst.offset);
+	}
+	while (qp->state->block_state != ISAL_BLOCK_FINISH) {
+
+		ret = isal_inflate(qp->state);
+
+		if (remaining_data == op->src.length) {
+			consumed_data = src->data_len - qp->state->avail_in -
+					(op->src.offset % src->data_len);
+		} else
+			consumed_data = src->data_len - qp->state->avail_in;
+
+		op->consumed += consumed_data;
+		remaining_data -= consumed_data;
+
+		if (ret != ISAL_DECOMP_OK) {
+			ISAL_PMD_LOG(ERR, "Decompression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->state->avail_in == 0
+				&& op->consumed != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->state->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->state->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			}
+		}
+
+		if (qp->state->avail_out == 0 &&
+				qp->state->block_state != ISAL_BLOCK_FINISH) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->state->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->state->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+	op->produced = qp->state->total_out;
+
+	return 0;
+}
+
 /* Stateless Compression Function */
 static int
 process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
@@ -207,7 +412,7 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 	/* Stateless operation, input will be consumed in one go */
 	qp->stream->flush = NO_FLUSH;
 
-	/* set op level & intermediate level buffer */
+	/* set compression level & intermediate level buffer size */
 	qp->stream->level = priv_xform->compress.level;
 	qp->stream->level_buf_size = priv_xform->level_buffer_size;
 
@@ -225,57 +430,72 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 		isal_deflate_set_hufftables(qp->stream, NULL,
 				IGZIP_HUFFTABLE_DEFAULT);
 
-	qp->stream->end_of_stream = 1; /* All input consumed in one go */
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for offset.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point compression stream to input buffer */
-	qp->stream->avail_in = op->src.length;
-	qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
 
-	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for offset.\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
-	/*  Point compression stream to output buffer */
-	qp->stream->avail_out = op->m_dst->data_len;
-	qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-		op->dst.offset);
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_compression(op, qp);
+		if (ret < 0) //check the returns... ensure op status changed.
+			return ret;
+	} else {
+	/* Linear buffer */
+		qp->stream->end_of_stream = 1; /* All input consumed in one go */
+		if ((op->src.length + op->src.offset) > op->m_src->data_len) {
+			ISAL_PMD_LOG(ERR, "Input mbuf not big enough for offset.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
+		/* Point compression stream to input buffer */
+		qp->stream->avail_in = op->src.length;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
+				op->src.offset);
+
+		if (op->dst.offset > op->m_dst->data_len) {
+			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for offset.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
+		/*  Point compression stream to output buffer */
+		qp->stream->avail_out = op->m_dst->data_len;
+		qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
+			op->dst.offset);
 
-	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+		if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	/* Execute compression operation */
-	ret =  isal_deflate_stateless(qp->stream);
+		/* Execute compression operation */
+		ret =  isal_deflate_stateless(qp->stream);
 
-	/* Check that output buffer did not run out of space */
-	if (ret == STATELESS_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		/* Check that output buffer did not run out of space */
+		if (ret == STATELESS_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->stream->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->stream->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != COMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
-	}
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 
-	op->consumed = qp->stream->total_in;
-	op->produced = qp->stream->total_out;
+		op->consumed = qp->stream->total_in;
+		op->produced = qp->stream->total_out;
+	}
 
 	return ret;
 }
@@ -291,57 +511,72 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
 	/* Initialize decompression state */
 	isal_inflate_init(qp->state);
 
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for offset.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point decompression state to input buffer */
-	qp->state->avail_in = op->src.length;
-	qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
 
-	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for offset.\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_decompression(op, qp);
+		if (ret !=  0)
+			return ret;
+	} else {
+		/* Linear buffer */
+		if ((op->src.length + op->src.offset) > op->m_src->data_len) {
+			ISAL_PMD_LOG(ERR, "Input mbuf not big enough for offset.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
-	}
-	/* Point decompression state to output buffer */
-	qp->state->avail_out = op->m_dst->data_len;
-	qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-			op->dst.offset);
+		}
+		/* Point decompression state to input buffer */
+		qp->state->avail_in = op->src.length;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
+				op->src.offset);
+
+		if (op->dst.offset > op->m_dst->data_len) {
+			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for offset.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
+		/* Point decompression state to output buffer */
+		qp->state->avail_out = op->m_dst->data_len;
+		qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
+				op->dst.offset);
+
+		if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+		/* Execute decompression operation */
+		ret = isal_inflate_stateless(qp->state);
 
-	/* Execute decompression operation */
-	ret = isal_inflate_stateless(qp->state);
+		if (ret == ISAL_OUT_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	if (ret == ISAL_OUT_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->state->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->state->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		if (ret != ISAL_DECOMP_OK) {
+			ISAL_PMD_LOG(ERR, "Decompression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 
-	if (ret != ISAL_DECOMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
+		op->consumed = op->src.length - qp->state->avail_in;
+		op->produced = qp->state->total_out;
 	}
 
-	op->consumed = op->src.length - qp->state->avail_in;
-	op->produced = qp->state->total_out;
-
-return ret;
+	return ret;
 }
 
 /* Process compression/decompression operation */
diff --git a/drivers/compress/isal/isal_compress_pmd_ops.c b/drivers/compress/isal/isal_compress_pmd_ops.c
index 585f228..b8c0ca1 100644
--- a/drivers/compress/isal/isal_compress_pmd_ops.c
+++ b/drivers/compress/isal/isal_compress_pmd_ops.c
@@ -12,7 +12,10 @@
 static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
 	{
 		.algo = RTE_COMP_ALGO_DEFLATE,
-		.comp_feature_flags =	RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+		.comp_feature_flags =	RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+					RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+					RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+					RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
 					RTE_COMP_FF_HUFFMAN_FIXED |
 					RTE_COMP_FF_HUFFMAN_DYNAMIC,
 		.window_size = {
-- 
2.7.4

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [dpdk-dev] [PATCH v2] compress/isal: add chained mbuf support
  2018-07-11 12:40 ` [dpdk-dev] [PATCH v2] " Lee, Daly
@ 2018-07-20 10:38   ` De Lara Guarch, Pablo
  2018-07-23 18:02   ` [dpdk-dev] [PATCH v3] " Daly, Lee
  1 sibling, 0 replies; 8+ messages in thread
From: De Lara Guarch, Pablo @ 2018-07-20 10:38 UTC (permalink / raw)
  To: Daly, Lee; +Cc: dev

Hi Lee,

> -----Original Message-----
> From: Daly, Lee
> Sent: Wednesday, July 11, 2018 1:40 PM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: dev@dpdk.org; Daly, Lee <lee.daly@intel.com>
> Subject: [PATCH v2] compress/isal: add chained mbuf support
> 
> This patch adds chained mbuf support for input or output buffers during
> compression/decompression operations.
> 
> V2 - Fixed using chained mbufs with offsets.
> 
> Signed-off-by: Lee Daly <lee.daly@intel.com>
> ---
>  doc/guides/compressdevs/features/isal.ini     |   1 +
>  doc/guides/compressdevs/isal.rst              |   2 -
>  drivers/compress/isal/isal_compress_pmd.c     | 397 ++++++++++++++++++++---
> ---
>  drivers/compress/isal/isal_compress_pmd_ops.c |   5 +-
>  4 files changed, 321 insertions(+), 84 deletions(-)
> 
> diff --git a/doc/guides/compressdevs/features/isal.ini
> b/doc/guides/compressdevs/features/isal.ini
> index 7183d10..06a95fb 100644
> --- a/doc/guides/compressdevs/features/isal.ini
> +++ b/doc/guides/compressdevs/features/isal.ini
> @@ -8,6 +8,7 @@ CPU SSE        = Y
>  CPU AVX        = Y
>  CPU AVX2       = Y
>  CPU AVX512     = Y
> +Chained mbufs  = Y

There are new feature flags replacing this one.

>  Deflate        = Y
>  Fixed          = Y
>  Dynamic        = Y
> diff --git a/doc/guides/compressdevs/isal.rst
> b/doc/guides/compressdevs/isal.rst
> index 276ff06..3bc3022 100644
> --- a/doc/guides/compressdevs/isal.rst
> +++ b/doc/guides/compressdevs/isal.rst
> @@ -78,8 +78,6 @@ As a result the level mappings from the API to the PMD are
> shown below.
>  Limitations
>  -----------
> 
> -* Chained mbufs will not be supported until a future release, meaning max data
> size being passed to PMD through a single mbuf is 64K - 1. If data is larger than
> this it will need to be split up and sent as multiple operations.
> -
>  * Compressdev level 0, no compression, is not supported.
> 
>  * Checksums will not be supported until future release.
> diff --git a/drivers/compress/isal/isal_compress_pmd.c
> b/drivers/compress/isal/isal_compress_pmd.c
> index 747ded1..70231c4 100644
> --- a/drivers/compress/isal/isal_compress_pmd.c
> +++ b/drivers/compress/isal/isal_compress_pmd.c
> @@ -188,6 +188,211 @@ isal_comp_set_priv_xform_parameters(struct
> isal_priv_xform *priv_xform,
>  	return 0;
>  }
> 
> +/* Compression using chained mbufs for input/output data */ static int
> +chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp
> +*qp) {
> +	int ret, i;

"i" should be unsigned int.

> +	uint8_t segs;
> +	uint32_t consumed_data;
> +	uint32_t remaining_data = op->src.length;
> +	struct rte_mbuf *src = op->m_src;
> +	struct rte_mbuf *dst = op->m_dst;
> +
> +	/* check for offset passing multiple segments
> +	 * and point compression stream to input/output buffer
> +	 */
> +	if (op->src.offset > src->data_len) {

>=

> +		segs = op->src.offset / src->data_len;

This is assuming that each segment has the same data length.
Better to do a while loop, decreasing the offset (remaining_offset?),
and moving to the next segment, until it is less than the current segment.

> +		for (i = 0; i < segs; i++)
> +			src = src->next;
> +
> +		qp->stream->avail_in = src->data_len -
> +				(op->src.offset % src->data_len);

Doing what I suggested above simplifies this, as you can substract "remaining_offset" to data_len.

> +		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
> +				(op->src.offset % src->data_len));
> +	} else {
> +		qp->stream->avail_in = src->data_len - op->src.offset;
> +		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
> +				op->src.offset);
> +	}
> +
> +	if (op->dst.offset > dst->data_len) {
> +		segs = op->dst.offset / dst->data_len;
> +		for (int i = 0; i < segs; i++)
> +			dst = dst->next;

Same as above.

> +
> +		qp->stream->avail_out = dst->data_len -
> +				(op->dst.offset % dst->data_len);
> +		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t
> *,
> +				(op->dst.offset % dst->data_len));

...

> +		if (remaining_data == op->src.length) {
> +			consumed_data = src->data_len - qp->stream->avail_in
> -
> +					(op->src.offset % src->data_len);
> +		} else
> +			consumed_data = src->data_len - qp->stream->avail_in;
> +
> +		remaining_data -= consumed_data;

What about "remaining_data = op->src.length - qp->stream->total_in"?
This way, you don't need the condition (nor "consumed_data").

> +
> +		if (ret != COMP_OK) {
> +			ISAL_PMD_LOG(ERR, "Compression operation
> failed\n");
> +			op->status = RTE_COMP_OP_STATUS_ERROR;
> +			return ret;
> +		}

...

> +			} else {
> +				ISAL_PMD_LOG(ERR,
> +				"Not enough input buffer segments\n"
> +					"Output Produced: %d\n", op-
> >produced);

This will always be 0, as it is only updated at the end of the function.

> +				op->status =
> RTE_COMP_OP_STATUS_INVALID_ARGS;
> +				return -1;
> +			}
> +		}
> +

...

> +				ISAL_PMD_LOG(ERR,
> +				"Not enough output buffer segments\n"
> +					"Output Produced: %d\n", op-
> >produced);

Same as above.

> +				op->status =
> +
> 	RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
> +				return -1;
> +			}
> +		}
> +	}
> +	op->consumed = qp->stream->total_in;
> +	op->produced = qp->stream->total_out;
> +
> +	return 0;
> +}
> +
> +/* Decompression using chained mbufs for input/output data */ static
> +int chained_mbuf_decompression(struct rte_comp_op *op, struct
> +isal_comp_qp *qp) {

Most comments from the compression function applies to the decompression one.

>  /* Stateless Compression Function */
>  static int
>  process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp, @@ -

...

> +	/* Chained mbufs */
> +	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
> +		ret = chained_mbuf_compression(op, qp);
> +		if (ret < 0) //check the returns... ensure op status changed.
> +			return ret;
> +	} else {
> +	/* Linear buffer */
> +		qp->stream->end_of_stream = 1; /* All input consumed in one
> go */
> +		if ((op->src.length + op->src.offset) > op->m_src->data_len) {

This is unnecessary, as the check that you are doing above is effectively the same.

> +			ISAL_PMD_LOG(ERR, "Input mbuf not big enough for
> offset.\n");
> +			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;

...

> +		/*  Point compression stream to output buffer */
> +		qp->stream->avail_out = op->m_dst->data_len;

Data_len - dst.offset?

> +		qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst,
> uint8_t *,
> +			op->dst.offset);
> 

...

> @@ -291,57 +511,72 @@ process_isal_inflate(struct rte_comp_op *op, struct
> isal_comp_qp *qp)

...

> +	/* Chained mbufs */
> +	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
> +		ret = chained_mbuf_decompression(op, qp);
> +		if (ret !=  0)
> +			return ret;
> +	} else {
> +		/* Linear buffer */
> +		if ((op->src.length + op->src.offset) > op->m_src->data_len) {

This is unnecessary, as the check that you are doing above is effectively the same.

> +			ISAL_PMD_LOG(ERR, "Input mbuf not big enough for
> offset.\n");
> +			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
>  		return -1;
> -	}

...

> +		/* Point decompression state to output buffer */
> +		qp->state->avail_out = op->m_dst->data_len;

Data_len - dst.offset?

...

> -	if (ret != ISAL_DECOMP_OK) {
> -		op->status = RTE_COMP_OP_STATUS_ERROR;
> -		return ret;
> +		op->consumed = op->src.length - qp->state->avail_in;

What about "total_in"?

> +		op->produced = qp->state->total_out;
>  	}
> 
> -	op->consumed = op->src.length - qp->state->avail_in;
> -	op->produced = qp->state->total_out;
> -
> -return ret;
> +	return ret;
>  }

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [dpdk-dev] [PATCH v3] compress/isal: add chained mbuf support
  2018-07-11 12:40 ` [dpdk-dev] [PATCH v2] " Lee, Daly
  2018-07-20 10:38   ` De Lara Guarch, Pablo
@ 2018-07-23 18:02   ` Daly, Lee
  2018-07-23 21:14     ` De Lara Guarch, Pablo
  2018-07-24 11:19     ` [dpdk-dev] [PATCH v4] " Daly, Lee
  1 sibling, 2 replies; 8+ messages in thread
From: Daly, Lee @ 2018-07-23 18:02 UTC (permalink / raw)
  To: pablo.de.lara.guarch; +Cc: dev, Daly, Lee

This patch adds chained mbuf support for input or output buffers
during compression/decompression operations.

Signed-off-by: Lee Daly <lee.daly@intel.com>
---
 doc/guides/compressdevs/features/isal.ini     |  17 +-
 doc/guides/compressdevs/isal.rst              |   2 -
 drivers/compress/isal/isal_compress_pmd.c     | 397 ++++++++++++++++++++------
 drivers/compress/isal/isal_compress_pmd_ops.c |   5 +-
 4 files changed, 323 insertions(+), 98 deletions(-)

diff --git a/doc/guides/compressdevs/features/isal.ini b/doc/guides/compressdevs/features/isal.ini
index 7183d10..919cf70 100644
--- a/doc/guides/compressdevs/features/isal.ini
+++ b/doc/guides/compressdevs/features/isal.ini
@@ -4,10 +4,13 @@
 ; Supported features of 'ISA-L' compression driver.
 ;
 [Features]
-CPU SSE        = Y
-CPU AVX        = Y
-CPU AVX2       = Y
-CPU AVX512     = Y
-Deflate        = Y
-Fixed          = Y
-Dynamic        = Y
+CPU SSE            = Y
+CPU AVX            = Y
+CPU AVX2           = Y
+CPU AVX512         = Y
+OOP SGL In SGL Out = Y
+OOP SGL In LB  Out = Y
+OOP LB  In SGL Out = Y
+Deflate            = Y
+Fixed              = Y
+Dynamic            = Y
diff --git a/doc/guides/compressdevs/isal.rst b/doc/guides/compressdevs/isal.rst
index 276ff06..3bc3022 100644
--- a/doc/guides/compressdevs/isal.rst
+++ b/doc/guides/compressdevs/isal.rst
@@ -78,8 +78,6 @@ As a result the level mappings from the API to the PMD are shown below.
 Limitations
 -----------
 
-* Chained mbufs will not be supported until a future release, meaning max data size being passed to PMD through a single mbuf is 64K - 1. If data is larger than this it will need to be split up and sent as multiple operations.
-
 * Compressdev level 0, no compression, is not supported.
 
 * Checksums will not be supported until future release.
diff --git a/drivers/compress/isal/isal_compress_pmd.c b/drivers/compress/isal/isal_compress_pmd.c
index 5966cc3..a776019 100644
--- a/drivers/compress/isal/isal_compress_pmd.c
+++ b/drivers/compress/isal/isal_compress_pmd.c
@@ -188,6 +188,206 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
 	return 0;
 }
 
+/* Compression using chained mbufs for input/output data */
+static int
+chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t remaining_offset;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for offset passing multiple segments
+	 * and point compression stream to input/output buffer
+	 */
+	if (op->src.offset > src->data_len) {
+		remaining_offset = op->src.offset;
+		while (remaining_offset > src->data_len) {
+			remaining_offset -= src->data_len;
+			src = src->next;
+		}
+
+
+		qp->stream->avail_in = src->data_len - remaining_offset;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				(op->src.offset % src->data_len));
+	} else {
+		qp->stream->avail_in = src->data_len - op->src.offset;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				op->src.offset);
+	}
+
+	if (op->dst.offset > dst->data_len) {
+		remaining_offset = op->dst.offset;
+		while (remaining_offset > dst->data_len) {
+			remaining_offset -= dst->data_len;
+			dst = dst->next;
+		}
+
+		qp->stream->avail_out = dst->data_len - remaining_offset;
+		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				(op->dst.offset % dst->data_len));
+	} else {
+		qp->stream->avail_out = dst->data_len - op->dst.offset;
+		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				op->dst.offset);
+	}
+
+	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+		ISAL_PMD_LOG(ERR, "Invalid source or destination buffer\n");
+		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+		return -1;
+	}
+
+	while (qp->stream->internal_state.state != ZSTATE_END) {
+		/* Last segment of data */
+		if (remaining_data <= src->data_len)
+			qp->stream->end_of_stream = 1;
+
+		/* Execute compression operation */
+		ret = isal_deflate(qp->stream);
+
+		remaining_data = op->src.length - qp->stream->total_in;
+
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->stream->avail_in == 0 &&
+				qp->stream->total_in != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->stream->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->stream->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough input buffer segments\n");
+				op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+				return -1;
+			}
+		}
+
+		if (qp->stream->avail_out == 0 &&
+				qp->stream->internal_state.state != ZSTATE_END) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->stream->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->stream->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+	op->consumed = qp->stream->total_in;
+	op->produced = qp->stream->total_out;
+
+	return 0;
+}
+
+/* Decompression using chained mbufs for input/output data */
+static int
+chained_mbuf_decompression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t consumed_data, remaining_offset;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for offset passing multiple segments
+	 * and point decompression state to input/output buffer
+	 */
+	if (op->src.offset > src->data_len) {
+		remaining_offset = op->src.offset;
+		while (remaining_offset > src->data_len) {
+			remaining_offset -= src->data_len;
+			src = src->next;
+		}
+
+		qp->state->avail_in = src->data_len - remaining_offset;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(src,
+				uint8_t *, (op->src.offset % src->data_len));
+	} else {
+		qp->state->avail_in = src->data_len - op->src.offset;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+				op->src.offset);
+	}
+	if (op->dst.offset > dst->data_len) {
+		remaining_offset = op->dst.offset;
+		while (remaining_offset > dst->data_len) {
+			remaining_offset -= dst->data_len;
+			dst = dst->next;
+		}
+
+		qp->state->avail_out = dst->data_len - remaining_offset;
+		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				(op->dst.offset % dst->data_len));
+	} else {
+		qp->state->avail_out = dst->data_len - op->dst.offset;
+		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+				op->dst.offset);
+	}
+	while (qp->state->block_state != ISAL_BLOCK_FINISH) {
+
+		ret = isal_inflate(qp->state);
+
+		if (remaining_data == op->src.length) {
+			consumed_data = src->data_len - qp->state->avail_in -
+					(op->src.offset % src->data_len);
+		} else
+			consumed_data = src->data_len - qp->state->avail_in;
+
+		op->consumed += consumed_data;
+		remaining_data -= consumed_data;
+
+		if (ret != ISAL_DECOMP_OK) {
+			ISAL_PMD_LOG(ERR, "Decompression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->state->avail_in == 0
+				&& op->consumed != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->state->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->state->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			}
+		}
+
+		if (qp->state->avail_out == 0 &&
+				qp->state->block_state != ISAL_BLOCK_FINISH) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->state->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->state->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+	op->produced = qp->state->total_out;
+
+	return 0;
+}
+
 /* Stateless Compression Function */
 static int
 process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
@@ -207,7 +407,7 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 	/* Stateless operation, input will be consumed in one go */
 	qp->stream->flush = NO_FLUSH;
 
-	/* set op level & intermediate level buffer */
+	/* set compression level & intermediate level buffer size */
 	qp->stream->level = priv_xform->compress.level;
 	qp->stream->level_buf_size = priv_xform->level_buffer_size;
 
@@ -225,59 +425,70 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 		isal_deflate_set_hufftables(qp->stream, NULL,
 				IGZIP_HUFFTABLE_DEFAULT);
 
-	qp->stream->end_of_stream = 1; /* All input consumed in one go */
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for the length and"
-				" offset provided.\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
-	/* Point compression stream to input buffer */
-	qp->stream->avail_in = op->src.length;
-	qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
-
-	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for the length"
-				" and offset provided.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/*  Point compression stream to output buffer */
-	qp->stream->avail_out = op->m_dst->data_len - op->dst.offset;
-	qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-		op->dst.offset);
 
-	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_compression(op, qp);
+		if (ret < 0)
+			return ret;
+	} else {
+	/* Linear buffer */
+		qp->stream->end_of_stream = 1; /* All input consumed in one */
+		/* Point compression stream to input buffer */
+		qp->stream->avail_in = op->src.length;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src,
+				uint8_t *, op->src.offset);
+
+		if (op->dst.offset > op->m_dst->data_len) {
+			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for "
+					"length and offset provided.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
+		/*  Point compression stream to output buffer */
+		qp->stream->avail_out = op->m_dst->data_len - op->dst.offset;
+		qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst,
+				uint8_t *, op->dst.offset);
+
+		if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination"
+					" buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	/* Execute compression operation */
-	ret =  isal_deflate_stateless(qp->stream);
+		/* Execute compression operation */
+		ret =  isal_deflate_stateless(qp->stream);
 
-	/* Check that output buffer did not run out of space */
-	if (ret == STATELESS_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		/* Check that output buffer did not run out of space */
+		if (ret == STATELESS_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->stream->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->stream->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read"
+					" entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != COMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
-	}
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 
-	op->consumed = qp->stream->total_in;
-	op->produced = qp->stream->total_out;
+		op->consumed = qp->stream->total_in;
+		op->produced = qp->stream->total_out;
+	}
 
 	return ret;
 }
@@ -293,59 +504,69 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
 	/* Initialize decompression state */
 	isal_inflate_init(qp->state);
 
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for the length and"
-				" offset provided.\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
-	/* Point decompression state to input buffer */
-	qp->state->avail_in = op->src.length;
-	qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
-
-	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for the length "
-				"and offset provided.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point decompression state to output buffer */
-	qp->state->avail_out = op->m_dst->data_len - op->dst.offset;
-	qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-			op->dst.offset);
 
-	if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_decompression(op, qp);
+		if (ret !=  0)
+			return ret;
+	} else {
+		/* Linear buffer */
+		/* Point decompression state to input buffer */
+		qp->state->avail_in = op->src.length;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src,
+				uint8_t *, op->src.offset);
+
+		if (op->dst.offset > op->m_dst->data_len) {
+			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for "
+					"length and offset provided.\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
+		/* Point decompression state to output buffer */
+		qp->state->avail_out = op->m_dst->data_len - op->dst.offset;
+		qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst,
+				uint8_t *, op->dst.offset);
+
+		if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination"
+					" buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	/* Execute decompression operation */
-	ret = isal_inflate_stateless(qp->state);
+		/* Execute decompression operation */
+		ret = isal_inflate_stateless(qp->state);
 
-	if (ret == ISAL_OUT_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		if (ret == ISAL_OUT_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->state->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->state->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read"
+					" entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != ISAL_DECOMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
-	}
+		if (ret != ISAL_DECOMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 
-	op->consumed = op->src.length - qp->state->avail_in;
-	op->produced = qp->state->total_out;
+		op->consumed = op->src.length - qp->state->avail_in;
+		op->produced = qp->state->total_out;
+	}
 
-return ret;
+	return ret;
 }
 
 /* Process compression/decompression operation */
diff --git a/drivers/compress/isal/isal_compress_pmd_ops.c b/drivers/compress/isal/isal_compress_pmd_ops.c
index c61acd4..41cade8 100644
--- a/drivers/compress/isal/isal_compress_pmd_ops.c
+++ b/drivers/compress/isal/isal_compress_pmd_ops.c
@@ -12,7 +12,10 @@
 static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
 	{
 		.algo = RTE_COMP_ALGO_DEFLATE,
-		.comp_feature_flags =	RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+		.comp_feature_flags =	RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+					RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+					RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+					RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
 					RTE_COMP_FF_HUFFMAN_FIXED |
 					RTE_COMP_FF_HUFFMAN_DYNAMIC,
 		.window_size = {
-- 
2.7.4

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [dpdk-dev] [PATCH v3] compress/isal: add chained mbuf support
  2018-07-23 18:02   ` [dpdk-dev] [PATCH v3] " Daly, Lee
@ 2018-07-23 21:14     ` De Lara Guarch, Pablo
  2018-07-24 11:19     ` [dpdk-dev] [PATCH v4] " Daly, Lee
  1 sibling, 0 replies; 8+ messages in thread
From: De Lara Guarch, Pablo @ 2018-07-23 21:14 UTC (permalink / raw)
  To: Daly, Lee; +Cc: dev, Daly, Lee

Hi Lee,

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Daly, Lee
> Sent: Monday, July 23, 2018 7:02 PM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: dev@dpdk.org; Daly, Lee <lee.daly@intel.com>
> Subject: [dpdk-dev] [PATCH v3] compress/isal: add chained mbuf support
> 
> This patch adds chained mbuf support for input or output buffers during
> compression/decompression operations.
> 
> Signed-off-by: Lee Daly <lee.daly@intel.com>
> ---
>  doc/guides/compressdevs/features/isal.ini     |  17 +-
>  doc/guides/compressdevs/isal.rst              |   2 -
>  drivers/compress/isal/isal_compress_pmd.c     | 397 ++++++++++++++++++++---
> ---

...

> +++ b/drivers/compress/isal/isal_compress_pmd.c
> @@ -188,6 +188,206 @@ isal_comp_set_priv_xform_parameters(struct
> isal_priv_xform *priv_xform,
>  	return 0;
>  }
> 
> +/* Compression using chained mbufs for input/output data */ static int
> +chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp
> +*qp) {
> +	int ret;
> +	uint32_t remaining_offset;
> +	uint32_t remaining_data = op->src.length;
> +	struct rte_mbuf *src = op->m_src;
> +	struct rte_mbuf *dst = op->m_dst;
> +
> +	/* check for offset passing multiple segments
> +	 * and point compression stream to input/output buffer
> +	 */
> +	if (op->src.offset > src->data_len) {

Check also for equal here (offset >= data_len).
In that case, you need to get the next segment and start from byte 0 there.

> +		remaining_offset = op->src.offset;
> +		while (remaining_offset > src->data_len) {

Same here, check for equal too.
> +			remaining_offset -= src->data_len;
> +			src = src->next;
> +		}
> +
> +
> +		qp->stream->avail_in = src->data_len - remaining_offset;

I think we need to check for minimum value between "data_len - remaining_offset" and src.length.

> +		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
> +				(op->src.offset % src->data_len));

Use remaining_offset here.

> +	} else {
> +		qp->stream->avail_in = src->data_len - op->src.offset;

Same thing here, about the minimum value with src.length.
Actually, I think you can remove the if and just keep the code under if (remove the code under else).
It should work for both cases, and you save one extra condition.

> +		qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
> +				op->src.offset);
> +	}
> +
> +	if (op->dst.offset > dst->data_len) {
> +		remaining_offset = op->dst.offset;
> +		while (remaining_offset > dst->data_len) {
> +			remaining_offset -= dst->data_len;
> +			dst = dst->next;
> +		}
> +
> +		qp->stream->avail_out = dst->data_len - remaining_offset;
> +		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t
> *,
> +				(op->dst.offset % dst->data_len));
> +	} else {
> +		qp->stream->avail_out = dst->data_len - op->dst.offset;
> +		qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t
> *,
> +				op->dst.offset);
> +	}

Same comments apply for the destination buffer (except for the src.length ones).

> +
> +	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
> +		ISAL_PMD_LOG(ERR, "Invalid source or destination buffer\n");
> +		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
> +		return -1;
> +	}
> +

...

> +int chained_mbuf_decompression(struct rte_comp_op *op, struct
> +isal_comp_qp *qp) {
> +	int ret;
> +	uint32_t consumed_data, remaining_offset;
> +	uint32_t remaining_data = op->src.length;
> +	struct rte_mbuf *src = op->m_src;
> +	struct rte_mbuf *dst = op->m_dst;
> +
> +	/* check for offset passing multiple segments
> +	 * and point decompression state to input/output buffer
> +	 */
> +	if (op->src.offset > src->data_len) {
> +		remaining_offset = op->src.offset;
> +		while (remaining_offset > src->data_len) {
> +			remaining_offset -= src->data_len;
> +			src = src->next;
> +		}
> +
> +		qp->state->avail_in = src->data_len - remaining_offset;
> +		qp->state->next_in = rte_pktmbuf_mtod_offset(src,
> +				uint8_t *, (op->src.offset % src->data_len));
> +	} else {
> +		qp->state->avail_in = src->data_len - op->src.offset;
> +		qp->state->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
> +				op->src.offset);
> +	}
> +	if (op->dst.offset > dst->data_len) {
> +		remaining_offset = op->dst.offset;
> +		while (remaining_offset > dst->data_len) {
> +			remaining_offset -= dst->data_len;
> +			dst = dst->next;
> +		}
> +
> +		qp->state->avail_out = dst->data_len - remaining_offset;
> +		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
> +				(op->dst.offset % dst->data_len));
> +	} else {
> +		qp->state->avail_out = dst->data_len - op->dst.offset;
> +		qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
> +				op->dst.offset);
> +	}

Same comments as above (compression).

> +	while (qp->state->block_state != ISAL_BLOCK_FINISH) {
> +
> +		ret = isal_inflate(qp->state);
> +
> +		if (remaining_data == op->src.length) {

I would put a comment before this if saying that this is checking for the first segment to compress,
so offset needs to be taken into account.

> +			consumed_data = src->data_len - qp->state->avail_in -
> +					(op->src.offset % src->data_len);

Better to use "remaining_offset".

> +		} else
> +			consumed_data = src->data_len - qp->state->avail_in;
> +
> +		op->consumed += consumed_data;
> +		remaining_data -= consumed_data;
> +
> +		if (ret != ISAL_DECOMP_OK) {
> +			ISAL_PMD_LOG(ERR, "Decompression operation
> failed\n");
> +			op->status = RTE_COMP_OP_STATUS_ERROR;
> +			return ret;
> +		}
> +

...

>  process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp, @@ -
> 207,7 +407,7 @@ process_isal_deflate(struct rte_comp_op *op, struct
> isal_comp_qp *qp,
>  	/* Stateless operation, input will be consumed in one go */
>  	qp->stream->flush = NO_FLUSH;
> 
> -	/* set op level & intermediate level buffer */
> +	/* set compression level & intermediate level buffer size */
>  	qp->stream->level = priv_xform->compress.level;
>  	qp->stream->level_buf_size = priv_xform->level_buffer_size;
> 
> @@ -225,59 +425,70 @@ process_isal_deflate(struct rte_comp_op *op, struct
> isal_comp_qp *qp,
>  		isal_deflate_set_hufftables(qp->stream, NULL,
>  				IGZIP_HUFFTABLE_DEFAULT);
> 
> -	qp->stream->end_of_stream = 1; /* All input consumed in one go */
> -	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
> -		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for the length
> and"
> -				" offset provided.\n");
> -		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
> -		return -1;
> -	}
> -	/* Point compression stream to input buffer */
> -	qp->stream->avail_in = op->src.length;
> -	qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
> -			op->src.offset);
> -
> -	if (op->dst.offset > op->m_dst->data_len) {
> -		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for the
> length"
> -				" and offset provided.\n");
> +	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
> +		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
>  		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
>  		return -1;
>  	}
> -	/*  Point compression stream to output buffer */
> -	qp->stream->avail_out = op->m_dst->data_len - op->dst.offset;
> -	qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t
> *,
> -		op->dst.offset);
> 
> -	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
> -		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
> -		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
> -		return -1;
> -	}
> +	/* Chained mbufs */
> +	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
> +		ret = chained_mbuf_compression(op, qp);
> +		if (ret < 0)
> +			return ret;
> +	} else {
> +	/* Linear buffer */
> +		qp->stream->end_of_stream = 1; /* All input consumed in one
> */
> +		/* Point compression stream to input buffer */
> +		qp->stream->avail_in = op->src.length;
> +		qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src,
> +				uint8_t *, op->src.offset);
> +
> +		if (op->dst.offset > op->m_dst->data_len) {
> +			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for
> "
> +					"length and offset provided.\n");
> +			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
> +			return -1;
> +		}

This if should be done also for SGL case, so I would move it outside this (after the input check), but using pkt_len.
 
...

> @@ -293,59 +504,69 @@ process_isal_inflate(struct rte_comp_op *op, struct

...

> +
> +		if (op->dst.offset > op->m_dst->data_len) {
> +			ISAL_PMD_LOG(ERR, "Output mbuf not big enough for
> "
> +					"length and offset provided.\n");
> +			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
> +			return -1;
> +		}

Same comment as the previous one.

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [dpdk-dev] [PATCH v4] compress/isal: add chained mbuf support
  2018-07-23 18:02   ` [dpdk-dev] [PATCH v3] " Daly, Lee
  2018-07-23 21:14     ` De Lara Guarch, Pablo
@ 2018-07-24 11:19     ` Daly, Lee
  2018-07-24 13:27       ` De Lara Guarch, Pablo
  1 sibling, 1 reply; 8+ messages in thread
From: Daly, Lee @ 2018-07-24 11:19 UTC (permalink / raw)
  To: pablo.de.lara.guarch; +Cc: dev, Daly, Lee

This patch adds chained mbuf support for input or output buffers
during compression/decompression operations.

V2 - split chained mbuf functionality into separate functions.
   - code optimizations.

V3 - bug fixes & optimizations.

v4 - bug fixes & optimizations.

Signed-off-by: Lee Daly <lee.daly@intel.com>
---
 doc/guides/compressdevs/features/isal.ini     |  17 +-
 doc/guides/compressdevs/isal.rst              |   2 -
 drivers/compress/isal/isal_compress_pmd.c     | 350 ++++++++++++++++++++------
 drivers/compress/isal/isal_compress_pmd_ops.c |   5 +-
 4 files changed, 286 insertions(+), 88 deletions(-)

diff --git a/doc/guides/compressdevs/features/isal.ini b/doc/guides/compressdevs/features/isal.ini
index 7183d10..919cf70 100644
--- a/doc/guides/compressdevs/features/isal.ini
+++ b/doc/guides/compressdevs/features/isal.ini
@@ -4,10 +4,13 @@
 ; Supported features of 'ISA-L' compression driver.
 ;
 [Features]
-CPU SSE        = Y
-CPU AVX        = Y
-CPU AVX2       = Y
-CPU AVX512     = Y
-Deflate        = Y
-Fixed          = Y
-Dynamic        = Y
+CPU SSE            = Y
+CPU AVX            = Y
+CPU AVX2           = Y
+CPU AVX512         = Y
+OOP SGL In SGL Out = Y
+OOP SGL In LB  Out = Y
+OOP LB  In SGL Out = Y
+Deflate            = Y
+Fixed              = Y
+Dynamic            = Y
diff --git a/doc/guides/compressdevs/isal.rst b/doc/guides/compressdevs/isal.rst
index 276ff06..3bc3022 100644
--- a/doc/guides/compressdevs/isal.rst
+++ b/doc/guides/compressdevs/isal.rst
@@ -78,8 +78,6 @@ As a result the level mappings from the API to the PMD are shown below.
 Limitations
 -----------
 
-* Chained mbufs will not be supported until a future release, meaning max data size being passed to PMD through a single mbuf is 64K - 1. If data is larger than this it will need to be split up and sent as multiple operations.
-
 * Compressdev level 0, no compression, is not supported.
 
 * Checksums will not be supported until future release.
diff --git a/drivers/compress/isal/isal_compress_pmd.c b/drivers/compress/isal/isal_compress_pmd.c
index 5966cc3..c2bcd2d 100644
--- a/drivers/compress/isal/isal_compress_pmd.c
+++ b/drivers/compress/isal/isal_compress_pmd.c
@@ -188,6 +188,179 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
 	return 0;
 }
 
+/* Compression using chained mbufs for input/output data */
+static int
+chained_mbuf_compression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t remaining_offset;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for source/destination offset passing multiple segments
+	 * and point compression stream to input/output buffer.
+	 */
+	remaining_offset = op->src.offset;
+	while (remaining_offset >= src->data_len) {
+		remaining_offset -= src->data_len;
+		src = src->next;
+	}
+	qp->stream->avail_in = RTE_MIN(src->data_len - remaining_offset,
+			op->src.length);
+	qp->stream->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+			remaining_offset);
+
+	remaining_offset = op->dst.offset;
+	while (remaining_offset >= dst->data_len) {
+		remaining_offset -= dst->data_len;
+		dst = dst->next;
+	}
+	qp->stream->avail_out = dst->data_len - remaining_offset;
+	qp->stream->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+			remaining_offset);
+
+	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+		ISAL_PMD_LOG(ERR, "Invalid source or destination buffer\n");
+		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+		return -1;
+	}
+
+	while (qp->stream->internal_state.state != ZSTATE_END) {
+		/* Last segment of data */
+		if (remaining_data <= src->data_len)
+			qp->stream->end_of_stream = 1;
+
+		/* Execute compression operation */
+		ret = isal_deflate(qp->stream);
+
+		remaining_data = op->src.length - qp->stream->total_in;
+
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->stream->avail_in == 0 &&
+				qp->stream->total_in != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->stream->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->stream->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough input buffer segments\n");
+				op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+				return -1;
+			}
+		}
+
+		if (qp->stream->avail_out == 0 &&
+				qp->stream->internal_state.state != ZSTATE_END) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->stream->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->stream->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/* Decompression using chained mbufs for input/output data */
+static int
+chained_mbuf_decompression(struct rte_comp_op *op, struct isal_comp_qp *qp)
+{
+	int ret;
+	uint32_t consumed_data, remaining_offset;
+	uint32_t remaining_data = op->src.length;
+	struct rte_mbuf *src = op->m_src;
+	struct rte_mbuf *dst = op->m_dst;
+
+	/* check for offset passing multiple segments
+	 * and point decompression state to input/output buffer
+	 */
+	remaining_offset = op->src.offset;
+	while (remaining_offset >= src->data_len) {
+		remaining_offset -= src->data_len;
+		src = src->next;
+	}
+	qp->state->avail_in = RTE_MIN(src->data_len - remaining_offset,
+			op->src.length);
+	qp->state->next_in = rte_pktmbuf_mtod_offset(src, uint8_t *,
+			remaining_offset);
+
+	remaining_offset = op->dst.offset;
+	while (remaining_offset >= dst->data_len) {
+		remaining_offset -= dst->data_len;
+		dst = dst->next;
+	}
+	qp->state->avail_out = dst->data_len - remaining_offset;
+	qp->state->next_out = rte_pktmbuf_mtod_offset(dst, uint8_t *,
+			remaining_offset);
+
+	while (qp->state->block_state != ISAL_BLOCK_FINISH) {
+
+		ret = isal_inflate(qp->state);
+
+		/* Check for first segment, offset needs to be accounted for */
+		if (remaining_data == op->src.length) {
+			consumed_data = src->data_len - qp->state->avail_in -
+					(op->src.offset % src->data_len);
+		} else
+			consumed_data = src->data_len - qp->state->avail_in;
+
+		op->consumed += consumed_data;
+		remaining_data -= consumed_data;
+
+		if (ret != ISAL_DECOMP_OK) {
+			ISAL_PMD_LOG(ERR, "Decompression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+
+		if (qp->state->avail_in == 0
+				&& op->consumed != op->src.length) {
+			if (src->next != NULL) {
+				src = src->next;
+				qp->state->next_in =
+						rte_pktmbuf_mtod(src, uint8_t *);
+				qp->state->avail_in =
+					RTE_MIN(remaining_data, src->data_len);
+			}
+		}
+
+		if (qp->state->avail_out == 0 &&
+				qp->state->block_state != ISAL_BLOCK_FINISH) {
+			if (dst->next != NULL) {
+				dst = dst->next;
+				qp->state->next_out =
+						rte_pktmbuf_mtod(dst, uint8_t *);
+				qp->state->avail_out = dst->data_len;
+			} else {
+				ISAL_PMD_LOG(ERR,
+				"Not enough output buffer segments\n");
+				op->status =
+				RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}
+
 /* Stateless Compression Function */
 static int
 process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
@@ -207,7 +380,7 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 	/* Stateless operation, input will be consumed in one go */
 	qp->stream->flush = NO_FLUSH;
 
-	/* set op level & intermediate level buffer */
+	/* set compression level & intermediate level buffer size */
 	qp->stream->level = priv_xform->compress.level;
 	qp->stream->level_buf_size = priv_xform->level_buffer_size;
 
@@ -225,59 +398,70 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 		isal_deflate_set_hufftables(qp->stream, NULL,
 				IGZIP_HUFFTABLE_DEFAULT);
 
-	qp->stream->end_of_stream = 1; /* All input consumed in one go */
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for the length and"
-				" offset provided.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point compression stream to input buffer */
-	qp->stream->avail_in = op->src.length;
-	qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
 
-	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for the length"
+	if (op->dst.offset > op->m_dst->pkt_len) {
+		ISAL_PMD_LOG(ERR, "Output mbuf(s) not big enough for length"
 				" and offset provided.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/*  Point compression stream to output buffer */
-	qp->stream->avail_out = op->m_dst->data_len - op->dst.offset;
-	qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-		op->dst.offset);
 
-	if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_compression(op, qp);
+		if (ret < 0)
+			return ret;
+	} else {
+		/* Linear buffer */
+		qp->stream->end_of_stream = 1; /* All input consumed in one */
+		/* Point compression stream to input buffer */
+		qp->stream->avail_in = op->src.length;
+		qp->stream->next_in = rte_pktmbuf_mtod_offset(op->m_src,
+				uint8_t *, op->src.offset);
+
+		/*  Point compression stream to output buffer */
+		qp->stream->avail_out = op->m_dst->data_len - op->dst.offset;
+		qp->stream->next_out  = rte_pktmbuf_mtod_offset(op->m_dst,
+				uint8_t *, op->dst.offset);
+
+		if (unlikely(!qp->stream->next_in || !qp->stream->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination"
+					" buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	/* Execute compression operation */
-	ret =  isal_deflate_stateless(qp->stream);
+		/* Execute compression operation */
+		ret =  isal_deflate_stateless(qp->stream);
 
-	/* Check that output buffer did not run out of space */
-	if (ret == STATELESS_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		/* Check that output buffer did not run out of space */
+		if (ret == STATELESS_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->stream->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->stream->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read"
+					" entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != COMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
+		if (ret != COMP_OK) {
+			ISAL_PMD_LOG(ERR, "Compression operation failed\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
 	}
-
-	op->consumed = qp->stream->total_in;
-	op->produced = qp->stream->total_out;
+		op->consumed = qp->stream->total_in;
+		op->produced = qp->stream->total_out;
 
 	return ret;
 }
@@ -293,59 +477,69 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
 	/* Initialize decompression state */
 	isal_inflate_init(qp->state);
 
-	if ((op->src.length + op->src.offset) > op->m_src->data_len) {
-		ISAL_PMD_LOG(ERR, "Input mbuf not big enough for the length and"
-				" offset provided.\n");
+	if (op->m_src->pkt_len < (op->src.length + op->src.offset)) {
+		ISAL_PMD_LOG(ERR, "Input mbuf(s) not big enough.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point decompression state to input buffer */
-	qp->state->avail_in = op->src.length;
-	qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src, uint8_t *,
-			op->src.offset);
 
 	if (op->dst.offset > op->m_dst->data_len) {
-		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for the length "
-				"and offset provided.\n");
+		ISAL_PMD_LOG(ERR, "Output mbuf not big enough for length and "
+				"offset provided.\n");
 		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
 		return -1;
 	}
-	/* Point decompression state to output buffer */
-	qp->state->avail_out = op->m_dst->data_len - op->dst.offset;
-	qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst, uint8_t *,
-			op->dst.offset);
 
-	if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
-		ISAL_PMD_LOG(ERR, "Invalid source or destination buffers\n");
-		op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
-		return -1;
-	}
+	/* Chained mbufs */
+	if (op->m_src->nb_segs > 1 || op->m_dst->nb_segs > 1) {
+		ret = chained_mbuf_decompression(op, qp);
+		if (ret !=  0)
+			return ret;
+	} else {
+		/* Linear buffer */
+		/* Point decompression state to input buffer */
+		qp->state->avail_in = op->src.length;
+		qp->state->next_in = rte_pktmbuf_mtod_offset(op->m_src,
+				uint8_t *, op->src.offset);
+
+		/* Point decompression state to output buffer */
+		qp->state->avail_out = op->m_dst->data_len - op->dst.offset;
+		qp->state->next_out  = rte_pktmbuf_mtod_offset(op->m_dst,
+				uint8_t *, op->dst.offset);
+
+		if (unlikely(!qp->state->next_in || !qp->state->next_out)) {
+			ISAL_PMD_LOG(ERR, "Invalid source or destination"
+					" buffers\n");
+			op->status = RTE_COMP_OP_STATUS_INVALID_ARGS;
+			return -1;
+		}
 
-	/* Execute decompression operation */
-	ret = isal_inflate_stateless(qp->state);
+		/* Execute decompression operation */
+		ret = isal_inflate_stateless(qp->state);
 
-	if (ret == ISAL_OUT_OVERFLOW) {
-		ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
-		op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
-		return ret;
-	}
+		if (ret == ISAL_OUT_OVERFLOW) {
+			ISAL_PMD_LOG(ERR, "Output buffer not big enough\n");
+			op->status = RTE_COMP_OP_STATUS_OUT_OF_SPACE_TERMINATED;
+			return ret;
+		}
 
-	/* Check that input buffer has been fully consumed */
-	if (qp->state->avail_in != (uint32_t)0) {
-		ISAL_PMD_LOG(ERR, "Input buffer could not be read entirely\n");
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return -1;
-	}
+		/* Check that input buffer has been fully consumed */
+		if (qp->state->avail_in != (uint32_t)0) {
+			ISAL_PMD_LOG(ERR, "Input buffer could not be read"
+					" entirely\n");
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return -1;
+		}
 
-	if (ret != ISAL_DECOMP_OK) {
-		op->status = RTE_COMP_OP_STATUS_ERROR;
-		return ret;
+		if (ret != ISAL_DECOMP_OK) {
+			op->status = RTE_COMP_OP_STATUS_ERROR;
+			return ret;
+		}
+		op->consumed = op->src.length - qp->state->avail_in;
 	}
+		op->produced = qp->state->total_out;
 
-	op->consumed = op->src.length - qp->state->avail_in;
-	op->produced = qp->state->total_out;
-
-return ret;
+	return ret;
 }
 
 /* Process compression/decompression operation */
diff --git a/drivers/compress/isal/isal_compress_pmd_ops.c b/drivers/compress/isal/isal_compress_pmd_ops.c
index c61acd4..41cade8 100644
--- a/drivers/compress/isal/isal_compress_pmd_ops.c
+++ b/drivers/compress/isal/isal_compress_pmd_ops.c
@@ -12,7 +12,10 @@
 static const struct rte_compressdev_capabilities isal_pmd_capabilities[] = {
 	{
 		.algo = RTE_COMP_ALGO_DEFLATE,
-		.comp_feature_flags =	RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
+		.comp_feature_flags =	RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+					RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+					RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+					RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
 					RTE_COMP_FF_HUFFMAN_FIXED |
 					RTE_COMP_FF_HUFFMAN_DYNAMIC,
 		.window_size = {
-- 
2.7.4

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [dpdk-dev] [PATCH v4] compress/isal: add chained mbuf support
  2018-07-24 11:19     ` [dpdk-dev] [PATCH v4] " Daly, Lee
@ 2018-07-24 13:27       ` De Lara Guarch, Pablo
  2018-07-24 13:36         ` De Lara Guarch, Pablo
  0 siblings, 1 reply; 8+ messages in thread
From: De Lara Guarch, Pablo @ 2018-07-24 13:27 UTC (permalink / raw)
  To: Daly, Lee; +Cc: dev



> -----Original Message-----
> From: Daly, Lee
> Sent: Tuesday, July 24, 2018 12:19 PM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: dev@dpdk.org; Daly, Lee <lee.daly@intel.com>
> Subject: [PATCH v4] compress/isal: add chained mbuf support
> 
> This patch adds chained mbuf support for input or output buffers during
> compression/decompression operations.
> 
> V2 - split chained mbuf functionality into separate functions.
>    - code optimizations.
> 
> V3 - bug fixes & optimizations.
> 
> v4 - bug fixes & optimizations.
> 
> Signed-off-by: Lee Daly <lee.daly@intel.com>

Reviewed-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [dpdk-dev] [PATCH v4] compress/isal: add chained mbuf support
  2018-07-24 13:27       ` De Lara Guarch, Pablo
@ 2018-07-24 13:36         ` De Lara Guarch, Pablo
  0 siblings, 0 replies; 8+ messages in thread
From: De Lara Guarch, Pablo @ 2018-07-24 13:36 UTC (permalink / raw)
  To: De Lara Guarch, Pablo, Daly, Lee; +Cc: dev



> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of De Lara Guarch, Pablo
> Sent: Tuesday, July 24, 2018 2:28 PM
> To: Daly, Lee <lee.daly@intel.com>
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v4] compress/isal: add chained mbuf support
> 
> 
> 
> > -----Original Message-----
> > From: Daly, Lee
> > Sent: Tuesday, July 24, 2018 12:19 PM
> > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > Cc: dev@dpdk.org; Daly, Lee <lee.daly@intel.com>
> > Subject: [PATCH v4] compress/isal: add chained mbuf support
> >
> > This patch adds chained mbuf support for input or output buffers
> > during compression/decompression operations.
> >
> > V2 - split chained mbuf functionality into separate functions.
> >    - code optimizations.
> >
> > V3 - bug fixes & optimizations.
> >
> > v4 - bug fixes & optimizations.
> >
> > Signed-off-by: Lee Daly <lee.daly@intel.com>
> 
> Reviewed-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>


Applied to dpdk-next-crypto.
Thanks,

Pablo

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2018-07-24 13:36 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-07-05 11:03 [dpdk-dev] [PATCH] compress/isal: add chained mbuf support Lee Daly
2018-07-11 12:40 ` [dpdk-dev] [PATCH v2] " Lee, Daly
2018-07-20 10:38   ` De Lara Guarch, Pablo
2018-07-23 18:02   ` [dpdk-dev] [PATCH v3] " Daly, Lee
2018-07-23 21:14     ` De Lara Guarch, Pablo
2018-07-24 11:19     ` [dpdk-dev] [PATCH v4] " Daly, Lee
2018-07-24 13:27       ` De Lara Guarch, Pablo
2018-07-24 13:36         ` De Lara Guarch, Pablo

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