[PATCH 6.6 044/283] crypto: hisilicon/zip - remove zlib and gzip

Sasha Levin
2026-02-28T18:07:46Z

From: Yang Shen <shenyang39@huawei.com>

[ Upstream commit 1a9e6f59caeea35d157f91b452ae75f251d8255b ]

Remove the support of zlib-deflate and gzip.

Signed-off-by: Yang Shen <shenyang39@huawei.com>
Reviewed-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Stable-dep-of: 19c2475ce198 ("crypto: hisilicon/zip - adjust the way to obtain the req in the callback function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/hisilicon/zip/zip_crypto.c | 308 ++--------------------
drivers/crypto/hisilicon/zip/zip_main.c | 2 +-
2 files changed, 22 insertions(+), 288 deletions(-)

diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c
index 09f60f7867795..636ac794ebb75 100644
--- a/drivers/crypto/hisilicon/zip/zip_crypto.c
+++ b/drivers/crypto/hisilicon/zip/zip_crypto.c
@@ -17,38 +17,14 @@
/* hisi_zip_sqe dw9 */
#define HZIP_REQ_TYPE_M GENMASK(7, 0)
#define HZIP_ALG_TYPE_DEFLATE 0x01
-#define HZIP_ALG_TYPE_ZLIB 0x02
-#define HZIP_ALG_TYPE_GZIP 0x03
#define HZIP_BUF_TYPE_M GENMASK(11, 8)
-#define HZIP_PBUFFER 0x0
#define HZIP_SGL 0x1

-#define HZIP_ZLIB_HEAD_SIZE 2
-#define HZIP_GZIP_HEAD_SIZE 10
-
-#define GZIP_HEAD_FHCRC_BIT BIT(1)
-#define GZIP_HEAD_FEXTRA_BIT BIT(2)
-#define GZIP_HEAD_FNAME_BIT BIT(3)
-#define GZIP_HEAD_FCOMMENT_BIT BIT(4)
-
-#define GZIP_HEAD_FLG_SHIFT 3
-#define GZIP_HEAD_FEXTRA_SHIFT 10
-#define GZIP_HEAD_FEXTRA_XLEN 2UL
-#define GZIP_HEAD_FHCRC_SIZE 2
-
-#define HZIP_GZIP_HEAD_BUF 256
#define HZIP_ALG_PRIORITY 300
#define HZIP_SGL_SGE_NR 10

-#define HZIP_ALG_ZLIB GENMASK(1, 0)
-#define HZIP_ALG_GZIP GENMASK(3, 2)
#define HZIP_ALG_DEFLATE GENMASK(5, 4)

-static const u8 zlib_head[HZIP_ZLIB_HEAD_SIZE] = {0x78, 0x9c};
-static const u8 gzip_head[HZIP_GZIP_HEAD_SIZE] = {
- 0x1f, 0x8b, 0x08, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x03
-};
-
enum hisi_zip_alg_type {
HZIP_ALG_TYPE_COMP = 0,
HZIP_ALG_TYPE_DECOMP = 1,
@@ -61,22 +37,10 @@ enum {
};

#define COMP_NAME_TO_TYPE(alg_name) \
- (!strcmp((alg_name), "deflate") ? HZIP_ALG_TYPE_DEFLATE : \
- (!strcmp((alg_name), "zlib-deflate") ? HZIP_ALG_TYPE_ZLIB : \
- !strcmp((alg_name), "gzip") ? HZIP_ALG_TYPE_GZIP : 0)) \
-
-#define TO_HEAD_SIZE(req_type) \
- (((req_type) == HZIP_ALG_TYPE_ZLIB) ? sizeof(zlib_head) : \
- ((req_type) == HZIP_ALG_TYPE_GZIP) ? sizeof(gzip_head) : 0) \
-
-#define TO_HEAD(req_type) \
- (((req_type) == HZIP_ALG_TYPE_ZLIB) ? zlib_head : \
- ((req_type) == HZIP_ALG_TYPE_GZIP) ? gzip_head : NULL) \
+ (!strcmp((alg_name), "deflate") ? HZIP_ALG_TYPE_DEFLATE : 0)

struct hisi_zip_req {
struct acomp_req *req;
- u32 sskip;
- u32 dskip;
struct hisi_acc_hw_sgl *hw_src;
struct hisi_acc_hw_sgl *hw_dst;
dma_addr_t dma_src;
@@ -141,85 +105,8 @@ static u16 sgl_sge_nr = HZIP_SGL_SGE_NR;
module_param_cb(sgl_sge_nr, &sgl_sge_nr_ops, &sgl_sge_nr, 0444);
MODULE_PARM_DESC(sgl_sge_nr, "Number of sge in sgl(1-255)");

-static u32 get_extra_field_size(const u8 *start)
-{
- return *((u16 *)start) + GZIP_HEAD_FEXTRA_XLEN;
-}
-
-static u32 get_name_field_size(const u8 *start)
-{
- return strlen(start) + 1;
-}
-
-static u32 get_comment_field_size(const u8 *start)
-{
- return strlen(start) + 1;
-}
-
-static u32 __get_gzip_head_size(const u8 *src)
-{
- u8 head_flg = *(src + GZIP_HEAD_FLG_SHIFT);
- u32 size = GZIP_HEAD_FEXTRA_SHIFT;
-
- if (head_flg & GZIP_HEAD_FEXTRA_BIT)
- size += get_extra_field_size(src + size);
- if (head_flg & GZIP_HEAD_FNAME_BIT)
- size += get_name_field_size(src + size);
- if (head_flg & GZIP_HEAD_FCOMMENT_BIT)
- size += get_comment_field_size(src + size);
- if (head_flg & GZIP_HEAD_FHCRC_BIT)
- size += GZIP_HEAD_FHCRC_SIZE;
-
- return size;
-}
-
-static u32 __maybe_unused get_gzip_head_size(struct scatterlist *sgl)
-{
- char buf[HZIP_GZIP_HEAD_BUF];
-
- sg_copy_to_buffer(sgl, sg_nents(sgl), buf, sizeof(buf));
-
- return __get_gzip_head_size(buf);
-}
-
-static int add_comp_head(struct scatterlist *dst, u8 req_type)
-{
- int head_size = TO_HEAD_SIZE(req_type);
- const u8 *head = TO_HEAD(req_type);
- int ret;
-
- ret = sg_copy_from_buffer(dst, sg_nents(dst), head, head_size);
- if (unlikely(ret != head_size)) {
- pr_err("the head size of buffer is wrong (%d)!\n", ret);
- return -ENOMEM;
- }
-
- return head_size;
-}
-
-static int get_comp_head_size(struct acomp_req *acomp_req, u8 req_type)
-{
- if (unlikely(!acomp_req->src || !acomp_req->slen))
- return -EINVAL;
-
- if (unlikely(req_type == HZIP_ALG_TYPE_GZIP &&
- acomp_req->slen < GZIP_HEAD_FEXTRA_SHIFT))
- return -EINVAL;
-
- switch (req_type) {
- case HZIP_ALG_TYPE_ZLIB:
- return TO_HEAD_SIZE(HZIP_ALG_TYPE_ZLIB);
- case HZIP_ALG_TYPE_GZIP:
- return TO_HEAD_SIZE(HZIP_ALG_TYPE_GZIP);
- default:
- pr_err("request type does not support!\n");
- return -EINVAL;
- }
-}
-
-static struct hisi_zip_req *hisi_zip_create_req(struct acomp_req *req,
- struct hisi_zip_qp_ctx *qp_ctx,
- size_t head_size, bool is_comp)
+static struct hisi_zip_req *hisi_zip_create_req(struct hisi_zip_qp_ctx *qp_ctx,
+ struct acomp_req *req)
{
struct hisi_zip_req_q *req_q = &qp_ctx->req_q;
struct hisi_zip_req *q = req_q->q;
@@ -242,14 +129,6 @@ static struct hisi_zip_req *hisi_zip_create_req(struct acomp_req *req,
req_cache->req_id = req_id;
req_cache->req = req;

- if (is_comp) {
- req_cache->sskip = 0;
- req_cache->dskip = head_size;
- } else {
- req_cache->sskip = head_size;
- req_cache->dskip = 0;
- }
-
return req_cache;
}

@@ -275,10 +154,8 @@ static void hisi_zip_fill_buf_size(struct hisi_zip_sqe *sqe, struct hisi_zip_req
{
struct acomp_req *a_req = req->req;

- sqe->input_data_length = a_req->slen - req->sskip;
- sqe->dest_avail_out = a_req->dlen - req->dskip;
- sqe->dw7 = FIELD_PREP(HZIP_IN_SGE_DATA_OFFSET_M, req->sskip);
- sqe->dw8 = FIELD_PREP(HZIP_OUT_SGE_DATA_OFFSET_M, req->dskip);
+ sqe->input_data_length = a_req->slen;
+ sqe->dest_avail_out = a_req->dlen;
}

static void hisi_zip_fill_buf_type(struct hisi_zip_sqe *sqe, u8 buf_type)
@@ -299,12 +176,7 @@ static void hisi_zip_fill_req_type(struct hisi_zip_sqe *sqe, u8 req_type)
sqe->dw9 = val;
}

-static void hisi_zip_fill_tag_v1(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req)
-{
- sqe->dw13 = req->req_id;
-}
-
-static void hisi_zip_fill_tag_v2(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req)
+static void hisi_zip_fill_tag(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req)
{
sqe->dw26 = req->req_id;
}
@@ -333,8 +205,8 @@ static void hisi_zip_fill_sqe(struct hisi_zip_ctx *ctx, struct hisi_zip_sqe *sqe
ops->fill_sqe_type(sqe, ops->sqe_type);
}

-static int hisi_zip_do_work(struct hisi_zip_req *req,
- struct hisi_zip_qp_ctx *qp_ctx)
+static int hisi_zip_do_work(struct hisi_zip_qp_ctx *qp_ctx,
+ struct hisi_zip_req *req)
{
struct hisi_acc_sgl_pool *pool = qp_ctx->sgl_pool;
struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx;
@@ -386,12 +258,7 @@ static int hisi_zip_do_work(struct hisi_zip_req *req,
return ret;
}

-static u32 hisi_zip_get_tag_v1(struct hisi_zip_sqe *sqe)
-{
- return sqe->dw13;
-}
-
-static u32 hisi_zip_get_tag_v2(struct hisi_zip_sqe *sqe)
+static u32 hisi_zip_get_tag(struct hisi_zip_sqe *sqe)
{
return sqe->dw26;
}
@@ -417,8 +284,8 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data)
u32 tag = ops->get_tag(sqe);
struct hisi_zip_req *req = req_q->q + tag;
struct acomp_req *acomp_req = req->req;
- u32 status, dlen, head_size;
int err = 0;
+ u32 status;

atomic64_inc(&dfx->recv_cnt);
status = ops->get_status(sqe);
@@ -430,13 +297,10 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data)
err = -EIO;
}

- dlen = ops->get_dstlen(sqe);
-
hisi_acc_sg_buf_unmap(dev, acomp_req->src, req->hw_src);
hisi_acc_sg_buf_unmap(dev, acomp_req->dst, req->hw_dst);

- head_size = (qp->alg_type == 0) ? TO_HEAD_SIZE(qp->req_type) : 0;
- acomp_req->dlen = dlen + head_size;
+ acomp_req->dlen = ops->get_dstlen(sqe);

if (acomp_req->base.complete)
acomp_request_complete(acomp_req, err);
@@ -450,24 +314,13 @@ static int hisi_zip_acompress(struct acomp_req *acomp_req)
struct hisi_zip_qp_ctx *qp_ctx = &ctx->qp_ctx[HZIP_QPC_COMP];
struct device *dev = &qp_ctx->qp->qm->pdev->dev;
struct hisi_zip_req *req;
- int head_size = 0;
int ret;

- /* let's output compression head now */
- if (qp_ctx->qp->req_type != HZIP_ALG_TYPE_DEFLATE) {
- head_size = add_comp_head(acomp_req->dst, qp_ctx->qp->req_type);
- if (unlikely(head_size < 0)) {
- dev_err_ratelimited(dev, "failed to add comp head (%d)!\n",
- head_size);
- return head_size;
- }
- }
-
- req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, true);
+ req = hisi_zip_create_req(qp_ctx, acomp_req);
if (IS_ERR(req))
return PTR_ERR(req);

- ret = hisi_zip_do_work(req, qp_ctx);
+ ret = hisi_zip_do_work(qp_ctx, req);
if (unlikely(ret != -EINPROGRESS)) {
dev_info_ratelimited(dev, "failed to do compress (%d)!\n", ret);
hisi_zip_remove_req(qp_ctx, req);
@@ -482,22 +335,13 @@ static int hisi_zip_adecompress(struct acomp_req *acomp_req)
struct hisi_zip_qp_ctx *qp_ctx = &ctx->qp_ctx[HZIP_QPC_DECOMP];
struct device *dev = &qp_ctx->qp->qm->pdev->dev;
struct hisi_zip_req *req;
- int head_size = 0, ret;
-
- if (qp_ctx->qp->req_type != HZIP_ALG_TYPE_DEFLATE) {
- head_size = get_comp_head_size(acomp_req, qp_ctx->qp->req_type);
- if (unlikely(head_size < 0)) {
- dev_err_ratelimited(dev, "failed to get comp head size (%d)!\n",
- head_size);
- return head_size;
- }
- }
+ int ret;

- req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, false);
+ req = hisi_zip_create_req(qp_ctx, acomp_req);
if (IS_ERR(req))
return PTR_ERR(req);

- ret = hisi_zip_do_work(req, qp_ctx);
+ ret = hisi_zip_do_work(qp_ctx, req);
if (unlikely(ret != -EINPROGRESS)) {
dev_info_ratelimited(dev, "failed to do decompress (%d)!\n",
ret);
@@ -534,28 +378,15 @@ static void hisi_zip_release_qp(struct hisi_zip_qp_ctx *qp_ctx)
hisi_qm_free_qps(&qp_ctx->qp, 1);
}

-static const struct hisi_zip_sqe_ops hisi_zip_ops_v1 = {
- .sqe_type = 0,
- .fill_addr = hisi_zip_fill_addr,
- .fill_buf_size = hisi_zip_fill_buf_size,
- .fill_buf_type = hisi_zip_fill_buf_type,
- .fill_req_type = hisi_zip_fill_req_type,
- .fill_tag = hisi_zip_fill_tag_v1,
- .fill_sqe_type = hisi_zip_fill_sqe_type,
- .get_tag = hisi_zip_get_tag_v1,
- .get_status = hisi_zip_get_status,
- .get_dstlen = hisi_zip_get_dstlen,
-};
-
-static const struct hisi_zip_sqe_ops hisi_zip_ops_v2 = {
+static const struct hisi_zip_sqe_ops hisi_zip_ops = {
.sqe_type = 0x3,
.fill_addr = hisi_zip_fill_addr,
.fill_buf_size = hisi_zip_fill_buf_size,
.fill_buf_type = hisi_zip_fill_buf_type,
.fill_req_type = hisi_zip_fill_req_type,
- .fill_tag = hisi_zip_fill_tag_v2,
+ .fill_tag = hisi_zip_fill_tag,
.fill_sqe_type = hisi_zip_fill_sqe_type,
- .get_tag = hisi_zip_get_tag_v2,
+ .get_tag = hisi_zip_get_tag,
.get_status = hisi_zip_get_status,
.get_dstlen = hisi_zip_get_dstlen,
};
@@ -591,10 +422,7 @@ static int hisi_zip_ctx_init(struct hisi_zip_ctx *hisi_zip_ctx, u8 req_type, int
qp_ctx->zip_dev = hisi_zip;
}

- if (hisi_zip->qm.ver < QM_HW_V3)
- hisi_zip_ctx->ops = &hisi_zip_ops_v1;
- else
- hisi_zip_ctx->ops = &hisi_zip_ops_v2;
+ hisi_zip_ctx->ops = &hisi_zip_ops;

return 0;
}
@@ -788,106 +616,12 @@ static void hisi_zip_unregister_deflate(struct hisi_qm *qm)
crypto_unregister_acomp(&hisi_zip_acomp_deflate);
}

-static struct acomp_alg hisi_zip_acomp_zlib = {
- .init = hisi_zip_acomp_init,
- .exit = hisi_zip_acomp_exit,
- .compress = hisi_zip_acompress,
- .decompress = hisi_zip_adecompress,
- .base = {
- .cra_name = "zlib-deflate",
- .cra_driver_name = "hisi-zlib-acomp",
- .cra_module = THIS_MODULE,
- .cra_priority = HZIP_ALG_PRIORITY,
- .cra_ctxsize = sizeof(struct hisi_zip_ctx),
- }
-};
-
-static int hisi_zip_register_zlib(struct hisi_qm *qm)
-{
- int ret;
-
- if (!hisi_zip_alg_support(qm, HZIP_ALG_ZLIB))
- return 0;
-
- ret = crypto_register_acomp(&hisi_zip_acomp_zlib);
- if (ret)
- dev_err(&qm->pdev->dev, "failed to register to zlib (%d)!\n", ret);
-
- return ret;
-}
-
-static void hisi_zip_unregister_zlib(struct hisi_qm *qm)
-{
- if (!hisi_zip_alg_support(qm, HZIP_ALG_ZLIB))
- return;
-
- crypto_unregister_acomp(&hisi_zip_acomp_zlib);
-}
-
-static struct acomp_alg hisi_zip_acomp_gzip = {
- .init = hisi_zip_acomp_init,
- .exit = hisi_zip_acomp_exit,
- .compress = hisi_zip_acompress,
- .decompress = hisi_zip_adecompress,
- .base = {
- .cra_name = "gzip",
- .cra_driver_name = "hisi-gzip-acomp",
- .cra_module = THIS_MODULE,
- .cra_priority = HZIP_ALG_PRIORITY,
- .cra_ctxsize = sizeof(struct hisi_zip_ctx),
- }
-};
-
-static int hisi_zip_register_gzip(struct hisi_qm *qm)
-{
- int ret;
-
- if (!hisi_zip_alg_support(qm, HZIP_ALG_GZIP))
- return 0;
-
- ret = crypto_register_acomp(&hisi_zip_acomp_gzip);
- if (ret)
- dev_err(&qm->pdev->dev, "failed to register to gzip (%d)!\n", ret);
-
- return ret;
-}
-
-static void hisi_zip_unregister_gzip(struct hisi_qm *qm)
-{
- if (!hisi_zip_alg_support(qm, HZIP_ALG_GZIP))
- return;
-
- crypto_unregister_acomp(&hisi_zip_acomp_gzip);
-}
-
int hisi_zip_register_to_crypto(struct hisi_qm *qm)
{
- int ret = 0;
-
- ret = hisi_zip_register_deflate(qm);
- if (ret)
- return ret;
-
- ret = hisi_zip_register_zlib(qm);
- if (ret)
- goto err_unreg_deflate;
-
- ret = hisi_zip_register_gzip(qm);
- if (ret)
- goto err_unreg_zlib;
-
- return 0;
-
-err_unreg_zlib:
- hisi_zip_unregister_zlib(qm);
-err_unreg_deflate:
- hisi_zip_unregister_deflate(qm);
- return ret;
+ return hisi_zip_register_deflate(qm);
}

void hisi_zip_unregister_from_crypto(struct hisi_qm *qm)
{
hisi_zip_unregister_deflate(qm);
- hisi_zip_unregister_zlib(qm);
- hisi_zip_unregister_gzip(qm);
}
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 26a0581e0d393..91212d9584bf5 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -238,7 +238,7 @@ static struct hisi_qm_cap_info zip_basic_cap_info[] = {
{ZIP_CLUSTER_DECOMP_NUM_CAP, 0x313C, 0, GENMASK(7, 0), 0x6, 0x6, 0x3},
{ZIP_DECOMP_ENABLE_BITMAP, 0x3140, 16, GENMASK(15, 0), 0xFC, 0xFC, 0x1C},
{ZIP_COMP_ENABLE_BITMAP, 0x3140, 0, GENMASK(15, 0), 0x3, 0x3, 0x3},
- {ZIP_DRV_ALG_BITMAP, 0x3144, 0, GENMASK(31, 0), 0xF, 0xF, 0x3F},
+ {ZIP_DRV_ALG_BITMAP, 0x3144, 0, GENMASK(31, 0), 0x0, 0x0, 0x30},
{ZIP_DEV_ALG_BITMAP, 0x3148, 0, GENMASK(31, 0), 0xF, 0xF, 0x3F},
{ZIP_CORE1_ALG_BITMAP, 0x314C, 0, GENMASK(31, 0), 0x5, 0x5, 0xD5},
{ZIP_CORE2_ALG_BITMAP, 0x3150, 0, GENMASK(31, 0), 0x5, 0x5, 0xD5},
--
2.51.0