compress/isal: enable checksum support

[dpdk.git] / drivers / compress / isal / isal_compress_pmd.c

diff --git a/drivers/compress/isal/isal_compress_pmd.c b/drivers/compress/isal/isal_compress_pmd.c
index 9f1e968..b610e90 100644 (file)
--- a/drivers/compress/isal/isal_compress_pmd.c
+++ b/drivers/compress/isal/isal_compress_pmd.c
@@ -16,6 +16,8 @@
 #define RTE_COMP_ISAL_LEVEL_ONE 1
 #define RTE_COMP_ISAL_LEVEL_TWO 2
 #define RTE_COMP_ISAL_LEVEL_THREE 3 /* Optimised for AVX512 & AVX2 only */
+#define CHKSUM_SZ_CRC 8
+#define CHKSUM_SZ_ADLER 4
 
 int isal_logtype_driver;
 
@@ -43,12 +45,6 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
                }
                priv_xform->compress.algo = RTE_COMP_ALGO_DEFLATE;
 
-               /* Set private xform checksum - raw deflate by default */
-               if (xform->compress.chksum != RTE_COMP_CHECKSUM_NONE) {
-                       ISAL_PMD_LOG(ERR, "Checksum not supported\n");
-                       return -ENOTSUP;
-               }
-
                /* Set private xform window size, 32K supported */
                if (xform->compress.window_size == RTE_COMP_ISAL_WINDOW_SIZE)
                        priv_xform->compress.window_size =
@@ -77,6 +73,28 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
                        return -ENOTSUP;
                }
 
+               /* Set private xform checksum */
+               switch (xform->compress.chksum) {
+               /* Raw deflate by default */
+               case(RTE_COMP_CHECKSUM_NONE):
+                       priv_xform->compress.chksum = IGZIP_DEFLATE;
+                       break;
+               case(RTE_COMP_CHECKSUM_CRC32):
+                       priv_xform->compress.chksum = IGZIP_GZIP_NO_HDR;
+                       break;
+               case(RTE_COMP_CHECKSUM_ADLER32):
+                       priv_xform->compress.chksum = IGZIP_ZLIB_NO_HDR;
+                       break;
+               case(RTE_COMP_CHECKSUM_CRC32_ADLER32):
+                       ISAL_PMD_LOG(ERR, "Combined CRC and ADLER checksum not"
+                                       " supported\n");
+                       return -ENOTSUP;
+               default:
+                       ISAL_PMD_LOG(ERR, "Checksum type not supported\n");
+                       priv_xform->compress.chksum = IGZIP_DEFLATE;
+                       break;
+               }
+
                /* Set private xform level.
                 * Checking compliance with compressdev API, -1 <= level => 9
                 */
@@ -170,10 +188,26 @@ isal_comp_set_priv_xform_parameters(struct isal_priv_xform *priv_xform,
                }
                priv_xform->decompress.algo = RTE_COMP_ALGO_DEFLATE;
 
-               /* Set private xform checksum - raw deflate by default */
-               if (xform->compress.chksum != RTE_COMP_CHECKSUM_NONE) {
-                       ISAL_PMD_LOG(ERR, "Checksum not supported\n");
+               /* Set private xform checksum */
+               switch (xform->decompress.chksum) {
+               /* Raw deflate by default */
+               case(RTE_COMP_CHECKSUM_NONE):
+                       priv_xform->decompress.chksum = ISAL_DEFLATE;
+                       break;
+               case(RTE_COMP_CHECKSUM_CRC32):
+                       priv_xform->decompress.chksum = ISAL_GZIP_NO_HDR_VER;
+                       break;
+               case(RTE_COMP_CHECKSUM_ADLER32):
+                       priv_xform->decompress.chksum = ISAL_ZLIB_NO_HDR_VER;
+                       break;
+               case(RTE_COMP_CHECKSUM_CRC32_ADLER32):
+                       ISAL_PMD_LOG(ERR, "Combined CRC and ADLER checksum not"
+                                       " supported\n");
                        return -ENOTSUP;
+               default:
+                       ISAL_PMD_LOG(ERR, "Checksum type not supported\n");
+                       priv_xform->decompress.chksum = ISAL_DEFLATE;
+                       break;
                }
 
                /* Set private xform window size, 32K supported */
@@ -376,6 +410,9 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 
        qp->stream->level_buf = temp_level_buf;
 
+       /* Set Checksum flag */
+       qp->stream->gzip_flag = priv_xform->compress.chksum;
+
        /* Stateless operation, input will be consumed in one go */
        qp->stream->flush = NO_FLUSH;
 
@@ -459,8 +496,18 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
                        return ret;
                }
        }
+
        op->consumed = qp->stream->total_in;
-       op->produced = qp->stream->total_out;
+       if (qp->stream->gzip_flag == IGZIP_DEFLATE) {
+               op->produced = qp->stream->total_out;
+       } else if (qp->stream->gzip_flag == IGZIP_ZLIB_NO_HDR) {
+               op->produced = qp->stream->total_out - CHKSUM_SZ_ADLER;
+               op->output_chksum = qp->stream->internal_state.crc + 1;
+       } else {
+               op->produced = qp->stream->total_out - CHKSUM_SZ_CRC;
+               op->output_chksum = qp->stream->internal_state.crc;
+       }
+
        isal_deflate_reset(qp->stream);
 
        return ret;
@@ -468,7 +515,8 @@ process_isal_deflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
 
 /* Stateless Decompression Function */
 static int
-process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
+process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp,
+               struct isal_priv_xform *priv_xform)
 {
        int ret = 0;
 
@@ -477,6 +525,9 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
        /* Initialize decompression state */
        isal_inflate_init(qp->state);
 
+       /* Set Checksum flag */
+       qp->state->crc_flag = priv_xform->decompress.chksum;
+
        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;
@@ -531,13 +582,16 @@ process_isal_inflate(struct rte_comp_op *op, struct isal_comp_qp *qp)
                        return -1;
                }
 
-               if (ret != ISAL_DECOMP_OK) {
+               if (ret != ISAL_DECOMP_OK && ret != ISAL_END_INPUT) {
+                       ISAL_PMD_LOG(ERR, "Decompression operation failed\n");
                        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->produced = qp->state->total_out;
+       op->output_chksum = qp->state->crc;
+
        isal_inflate_reset(qp->state);
 
        return ret;
@@ -553,7 +607,7 @@ process_op(struct isal_comp_qp *qp, struct rte_comp_op *op,
                process_isal_deflate(op, qp, priv_xform);
                break;
        case RTE_COMP_DECOMPRESS:
-               process_isal_inflate(op, qp);
+               process_isal_inflate(op, qp, priv_xform);
                break;
        default:
                ISAL_PMD_LOG(ERR, "Operation Not Supported\n");