diff options
Diffstat (limited to 'drivers/crypto')
-rw-r--r-- | drivers/crypto/intel/qat/qat_common/qat_comp_algs.c | 129 |
1 files changed, 1 insertions, 128 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/qat_comp_algs.c b/drivers/crypto/intel/qat/qat_common/qat_comp_algs.c index b533984906ec..bf8c0ee62917 100644 --- a/drivers/crypto/intel/qat/qat_common/qat_comp_algs.c +++ b/drivers/crypto/intel/qat/qat_common/qat_comp_algs.c @@ -109,69 +109,6 @@ err: acomp_request_complete(areq, ret); } -static int parse_zlib_header(u16 zlib_h) -{ - int ret = -EINVAL; - __be16 header; - u8 *header_p; - u8 cmf, flg; - - header = cpu_to_be16(zlib_h); - header_p = (u8 *)&header; - - flg = header_p[0]; - cmf = header_p[1]; - - if (cmf >> QAT_RFC_1950_CM_OFFSET > QAT_RFC_1950_CM_DEFLATE_CINFO_32K) - return ret; - - if ((cmf & QAT_RFC_1950_CM_MASK) != QAT_RFC_1950_CM_DEFLATE) - return ret; - - if (flg & QAT_RFC_1950_DICT_MASK) - return ret; - - return 0; -} - -static int qat_comp_rfc1950_callback(struct qat_compression_req *qat_req, - void *resp) -{ - struct acomp_req *areq = qat_req->acompress_req; - enum direction dir = qat_req->dir; - __be32 qat_produced_adler; - - qat_produced_adler = cpu_to_be32(qat_comp_get_produced_adler32(resp)); - - if (dir == COMPRESSION) { - __be16 zlib_header; - - zlib_header = cpu_to_be16(QAT_RFC_1950_COMP_HDR); - scatterwalk_map_and_copy(&zlib_header, areq->dst, 0, QAT_RFC_1950_HDR_SIZE, 1); - areq->dlen += QAT_RFC_1950_HDR_SIZE; - - scatterwalk_map_and_copy(&qat_produced_adler, areq->dst, areq->dlen, - QAT_RFC_1950_FOOTER_SIZE, 1); - areq->dlen += QAT_RFC_1950_FOOTER_SIZE; - } else { - __be32 decomp_adler; - int footer_offset; - int consumed; - - consumed = qat_comp_get_consumed_ctr(resp); - footer_offset = consumed + QAT_RFC_1950_HDR_SIZE; - if (footer_offset + QAT_RFC_1950_FOOTER_SIZE > areq->slen) - return -EBADMSG; - - scatterwalk_map_and_copy(&decomp_adler, areq->src, footer_offset, - QAT_RFC_1950_FOOTER_SIZE, 0); - - if (qat_produced_adler != decomp_adler) - return -EBADMSG; - } - return 0; -} - static void qat_comp_generic_callback(struct qat_compression_req *qat_req, void *resp) { @@ -293,18 +230,6 @@ static void qat_comp_alg_exit_tfm(struct crypto_acomp *acomp_tfm) memset(ctx, 0, sizeof(*ctx)); } -static int qat_comp_alg_rfc1950_init_tfm(struct crypto_acomp *acomp_tfm) -{ - struct crypto_tfm *tfm = crypto_acomp_tfm(acomp_tfm); - struct qat_compression_ctx *ctx = crypto_tfm_ctx(tfm); - int ret; - - ret = qat_comp_alg_init_tfm(acomp_tfm); - ctx->qat_comp_callback = &qat_comp_rfc1950_callback; - - return ret; -} - static int qat_comp_alg_compress_decompress(struct acomp_req *areq, enum direction dir, unsigned int shdr, unsigned int sftr, unsigned int dhdr, unsigned int dftr) @@ -400,43 +325,6 @@ static int qat_comp_alg_decompress(struct acomp_req *req) return qat_comp_alg_compress_decompress(req, DECOMPRESSION, 0, 0, 0, 0); } -static int qat_comp_alg_rfc1950_compress(struct acomp_req *req) -{ - if (!req->dst && req->dlen != 0) - return -EINVAL; - - if (req->dst && req->dlen <= QAT_RFC_1950_HDR_SIZE + QAT_RFC_1950_FOOTER_SIZE) - return -EINVAL; - - return qat_comp_alg_compress_decompress(req, COMPRESSION, 0, 0, - QAT_RFC_1950_HDR_SIZE, - QAT_RFC_1950_FOOTER_SIZE); -} - -static int qat_comp_alg_rfc1950_decompress(struct acomp_req *req) -{ - struct crypto_acomp *acomp_tfm = crypto_acomp_reqtfm(req); - struct crypto_tfm *tfm = crypto_acomp_tfm(acomp_tfm); - struct qat_compression_ctx *ctx = crypto_tfm_ctx(tfm); - struct adf_accel_dev *accel_dev = ctx->inst->accel_dev; - u16 zlib_header; - int ret; - - if (req->slen <= QAT_RFC_1950_HDR_SIZE + QAT_RFC_1950_FOOTER_SIZE) - return -EBADMSG; - - scatterwalk_map_and_copy(&zlib_header, req->src, 0, QAT_RFC_1950_HDR_SIZE, 0); - - ret = parse_zlib_header(zlib_header); - if (ret) { - dev_dbg(&GET_DEV(accel_dev), "Error parsing zlib header\n"); - return ret; - } - - return qat_comp_alg_compress_decompress(req, DECOMPRESSION, QAT_RFC_1950_HDR_SIZE, - QAT_RFC_1950_FOOTER_SIZE, 0, 0); -} - static struct acomp_alg qat_acomp[] = { { .base = { .cra_name = "deflate", @@ -452,22 +340,7 @@ static struct acomp_alg qat_acomp[] = { { .decompress = qat_comp_alg_decompress, .dst_free = sgl_free, .reqsize = sizeof(struct qat_compression_req), -}, { - .base = { - .cra_name = "zlib-deflate", - .cra_driver_name = "qat_zlib_deflate", - .cra_priority = 4001, - .cra_flags = CRYPTO_ALG_ASYNC, - .cra_ctxsize = sizeof(struct qat_compression_ctx), - .cra_module = THIS_MODULE, - }, - .init = qat_comp_alg_rfc1950_init_tfm, - .exit = qat_comp_alg_exit_tfm, - .compress = qat_comp_alg_rfc1950_compress, - .decompress = qat_comp_alg_rfc1950_decompress, - .dst_free = sgl_free, - .reqsize = sizeof(struct qat_compression_req), -} }; +}}; int qat_comp_algs_register(void) { |