diff options
Diffstat (limited to 'drivers/crypto/hisilicon/zip/zip_crypto.c')
| -rw-r--r-- | drivers/crypto/hisilicon/zip/zip_crypto.c | 698 |
1 files changed, 401 insertions, 297 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c index 08b4660b014c..9520a4113c81 100644 --- a/drivers/crypto/hisilicon/zip/zip_crypto.c +++ b/drivers/crypto/hisilicon/zip/zip_crypto.c @@ -10,6 +10,7 @@ #define HZIP_BD_STATUS_M GENMASK(7, 0) /* hisi_zip_sqe dw7 */ #define HZIP_IN_SGE_DATA_OFFSET_M GENMASK(23, 0) +#define HZIP_SQE_TYPE_M GENMASK(31, 28) /* hisi_zip_sqe dw8 */ #define HZIP_OUT_SGE_DATA_OFFSET_M GENMASK(23, 0) /* hisi_zip_sqe dw9 */ @@ -91,8 +92,22 @@ struct hisi_zip_qp_ctx { struct hisi_zip_ctx *ctx; }; +struct hisi_zip_sqe_ops { + u8 sqe_type; + void (*fill_addr)(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req); + void (*fill_buf_size)(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req); + void (*fill_buf_type)(struct hisi_zip_sqe *sqe, u8 buf_type); + void (*fill_req_type)(struct hisi_zip_sqe *sqe, u8 req_type); + void (*fill_tag)(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req); + void (*fill_sqe_type)(struct hisi_zip_sqe *sqe, u8 sqe_type); + u32 (*get_tag)(struct hisi_zip_sqe *sqe); + u32 (*get_status)(struct hisi_zip_sqe *sqe); + u32 (*get_dstlen)(struct hisi_zip_sqe *sqe); +}; + struct hisi_zip_ctx { struct hisi_zip_qp_ctx qp_ctx[HZIP_CTX_Q_NUM]; + const struct hisi_zip_sqe_ops *ops; }; static int sgl_sge_nr_set(const char *val, const struct kernel_param *kp) @@ -119,35 +134,367 @@ 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 void hisi_zip_config_buf_type(struct hisi_zip_sqe *sqe, u8 buf_type) +static u16 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 size_t __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 (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 (!acomp_req->src || !acomp_req->slen) + return -EINVAL; + + if (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) +{ + struct hisi_zip_req_q *req_q = &qp_ctx->req_q; + struct hisi_zip_req *q = req_q->q; + struct hisi_zip_req *req_cache; + int req_id; + + write_lock(&req_q->req_lock); + + req_id = find_first_zero_bit(req_q->req_bitmap, req_q->size); + if (req_id >= req_q->size) { + write_unlock(&req_q->req_lock); + dev_dbg(&qp_ctx->qp->qm->pdev->dev, "req cache is full!\n"); + return ERR_PTR(-EAGAIN); + } + set_bit(req_id, req_q->req_bitmap); + + req_cache = q + req_id; + 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; + } + + write_unlock(&req_q->req_lock); + + return req_cache; +} + +static void hisi_zip_remove_req(struct hisi_zip_qp_ctx *qp_ctx, + struct hisi_zip_req *req) +{ + struct hisi_zip_req_q *req_q = &qp_ctx->req_q; + + write_lock(&req_q->req_lock); + clear_bit(req->req_id, req_q->req_bitmap); + memset(req, 0, sizeof(struct hisi_zip_req)); + write_unlock(&req_q->req_lock); +} + +static void hisi_zip_fill_addr(struct hisi_zip_sqe *sqe, struct hisi_zip_req *req) +{ + sqe->source_addr_l = lower_32_bits(req->dma_src); + sqe->source_addr_h = upper_32_bits(req->dma_src); + sqe->dest_addr_l = lower_32_bits(req->dma_dst); + sqe->dest_addr_h = upper_32_bits(req->dma_dst); +} + +static void hisi_zip_fill_buf_size(struct hisi_zip_sqe *sqe, struct hisi_zip_req *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); +} + +static void hisi_zip_fill_buf_type(struct hisi_zip_sqe *sqe, u8 buf_type) { u32 val; - val = (sqe->dw9) & ~HZIP_BUF_TYPE_M; + val = sqe->dw9 & ~HZIP_BUF_TYPE_M; val |= FIELD_PREP(HZIP_BUF_TYPE_M, buf_type); sqe->dw9 = val; } -static void hisi_zip_config_tag(struct hisi_zip_sqe *sqe, u32 tag) +static void hisi_zip_fill_req_type(struct hisi_zip_sqe *sqe, u8 req_type) { - sqe->tag = tag; + u32 val; + + val = sqe->dw9 & ~HZIP_REQ_TYPE_M; + val |= FIELD_PREP(HZIP_REQ_TYPE_M, req_type); + sqe->dw9 = val; } -static void hisi_zip_fill_sqe(struct hisi_zip_sqe *sqe, u8 req_type, - dma_addr_t s_addr, dma_addr_t d_addr, u32 slen, - u32 dlen, u32 sskip, u32 dskip) +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) +{ + sqe->dw26 = req->req_id; +} + +static void hisi_zip_fill_sqe_type(struct hisi_zip_sqe *sqe, u8 sqe_type) +{ + u32 val; + + val = sqe->dw7 & ~HZIP_SQE_TYPE_M; + val |= FIELD_PREP(HZIP_SQE_TYPE_M, sqe_type); + sqe->dw7 = val; +} + +static void hisi_zip_fill_sqe(struct hisi_zip_ctx *ctx, struct hisi_zip_sqe *sqe, + u8 req_type, struct hisi_zip_req *req) +{ + const struct hisi_zip_sqe_ops *ops = ctx->ops; + memset(sqe, 0, sizeof(struct hisi_zip_sqe)); - sqe->input_data_length = slen - sskip; - sqe->dw7 = FIELD_PREP(HZIP_IN_SGE_DATA_OFFSET_M, sskip); - sqe->dw8 = FIELD_PREP(HZIP_OUT_SGE_DATA_OFFSET_M, dskip); - sqe->dw9 = FIELD_PREP(HZIP_REQ_TYPE_M, req_type); - sqe->dest_avail_out = dlen - dskip; - sqe->source_addr_l = lower_32_bits(s_addr); - sqe->source_addr_h = upper_32_bits(s_addr); - sqe->dest_addr_l = lower_32_bits(d_addr); - sqe->dest_addr_h = upper_32_bits(d_addr); + ops->fill_addr(sqe, req); + ops->fill_buf_size(sqe, req); + ops->fill_buf_type(sqe, HZIP_SGL); + ops->fill_req_type(sqe, req_type); + ops->fill_tag(sqe, req); + 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) +{ + struct hisi_acc_sgl_pool *pool = qp_ctx->sgl_pool; + struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx; + struct acomp_req *a_req = req->req; + struct hisi_qp *qp = qp_ctx->qp; + struct device *dev = &qp->qm->pdev->dev; + struct hisi_zip_sqe zip_sqe; + int ret; + + if (!a_req->src || !a_req->slen || !a_req->dst || !a_req->dlen) + return -EINVAL; + + req->hw_src = hisi_acc_sg_buf_map_to_hw_sgl(dev, a_req->src, pool, + req->req_id << 1, &req->dma_src); + if (IS_ERR(req->hw_src)) { + dev_err(dev, "failed to map the src buffer to hw sgl (%ld)!\n", + PTR_ERR(req->hw_src)); + return PTR_ERR(req->hw_src); + } + + req->hw_dst = hisi_acc_sg_buf_map_to_hw_sgl(dev, a_req->dst, pool, + (req->req_id << 1) + 1, + &req->dma_dst); + if (IS_ERR(req->hw_dst)) { + ret = PTR_ERR(req->hw_dst); + dev_err(dev, "failed to map the dst buffer to hw slg (%d)!\n", + ret); + goto err_unmap_input; + } + + hisi_zip_fill_sqe(qp_ctx->ctx, &zip_sqe, qp->req_type, req); + + /* send command to start a task */ + atomic64_inc(&dfx->send_cnt); + ret = hisi_qp_send(qp, &zip_sqe); + if (ret < 0) { + atomic64_inc(&dfx->send_busy_cnt); + ret = -EAGAIN; + dev_dbg_ratelimited(dev, "failed to send request!\n"); + goto err_unmap_output; + } + + return -EINPROGRESS; + +err_unmap_output: + hisi_acc_sg_buf_unmap(dev, a_req->dst, req->hw_dst); +err_unmap_input: + hisi_acc_sg_buf_unmap(dev, a_req->src, req->hw_src); + 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) +{ + return sqe->dw26; +} + +static u32 hisi_zip_get_status(struct hisi_zip_sqe *sqe) +{ + return sqe->dw3 & HZIP_BD_STATUS_M; +} + +static u32 hisi_zip_get_dstlen(struct hisi_zip_sqe *sqe) +{ + return sqe->produced; +} + +static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data) +{ + struct hisi_zip_qp_ctx *qp_ctx = qp->qp_ctx; + const struct hisi_zip_sqe_ops *ops = qp_ctx->ctx->ops; + struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx; + struct hisi_zip_req_q *req_q = &qp_ctx->req_q; + struct device *dev = &qp->qm->pdev->dev; + struct hisi_zip_sqe *sqe = 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; + + atomic64_inc(&dfx->recv_cnt); + status = ops->get_status(sqe); + if (status != 0 && status != HZIP_NC_ERR) { + dev_err(dev, "%scompress fail in qp%u: %u, output: %u\n", + (qp->alg_type == 0) ? "" : "de", qp->qp_id, status, + sqe->produced); + atomic64_inc(&dfx->err_bd_cnt); + 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; + + if (acomp_req->base.complete) + acomp_request_complete(acomp_req, err); + + hisi_zip_remove_req(qp_ctx, req); +} + +static int hisi_zip_acompress(struct acomp_req *acomp_req) +{ + struct hisi_zip_ctx *ctx = crypto_tfm_ctx(acomp_req->base.tfm); + 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; + int ret; + + /* let's output compression head now */ + head_size = add_comp_head(acomp_req->dst, qp_ctx->qp->req_type); + if (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); + if (IS_ERR(req)) + return PTR_ERR(req); + + ret = hisi_zip_do_work(req, qp_ctx); + if (ret != -EINPROGRESS) { + dev_info_ratelimited(dev, "failed to do compress (%d)!\n", ret); + hisi_zip_remove_req(qp_ctx, req); + } + + return ret; +} + +static int hisi_zip_adecompress(struct acomp_req *acomp_req) +{ + struct hisi_zip_ctx *ctx = crypto_tfm_ctx(acomp_req->base.tfm); + 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, ret; + + head_size = get_comp_head_size(acomp_req, qp_ctx->qp->req_type); + if (head_size < 0) { + dev_err_ratelimited(dev, "failed to get comp head size (%d)!\n", + head_size); + return head_size; + } + + req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, false); + if (IS_ERR(req)) + return PTR_ERR(req); + + ret = hisi_zip_do_work(req, qp_ctx); + if (ret != -EINPROGRESS) { + dev_info_ratelimited(dev, "failed to do decompress (%d)!\n", + ret); + hisi_zip_remove_req(qp_ctx, req); + } + + return ret; } static int hisi_zip_start_qp(struct hisi_qp *qp, struct hisi_zip_qp_ctx *ctx, @@ -177,9 +524,36 @@ static void hisi_zip_release_qp(struct hisi_zip_qp_ctx *ctx) hisi_qm_release_qp(ctx->qp); } +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 = { + .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_sqe_type = hisi_zip_fill_sqe_type, + .get_tag = hisi_zip_get_tag_v2, + .get_status = hisi_zip_get_status, + .get_dstlen = hisi_zip_get_dstlen, +}; + static int hisi_zip_ctx_init(struct hisi_zip_ctx *hisi_zip_ctx, u8 req_type, int node) { struct hisi_qp *qps[HZIP_CTX_Q_NUM] = { NULL }; + struct hisi_zip_qp_ctx *qp_ctx; struct hisi_zip *hisi_zip; int ret, i, j; @@ -193,8 +567,9 @@ static int hisi_zip_ctx_init(struct hisi_zip_ctx *hisi_zip_ctx, u8 req_type, int for (i = 0; i < HZIP_CTX_Q_NUM; i++) { /* alg_type = 0 for compress, 1 for decompress in hw sqe */ - ret = hisi_zip_start_qp(qps[i], &hisi_zip_ctx->qp_ctx[i], i, - req_type); + qp_ctx = &hisi_zip_ctx->qp_ctx[i]; + qp_ctx->ctx = hisi_zip_ctx; + ret = hisi_zip_start_qp(qps[i], qp_ctx, i, req_type); if (ret) { for (j = i - 1; j >= 0; j--) hisi_qm_stop_qp(hisi_zip_ctx->qp_ctx[j].qp); @@ -203,9 +578,14 @@ static int hisi_zip_ctx_init(struct hisi_zip_ctx *hisi_zip_ctx, u8 req_type, int return ret; } - hisi_zip_ctx->qp_ctx[i].zip_dev = hisi_zip; + 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; + return 0; } @@ -217,38 +597,6 @@ static void hisi_zip_ctx_exit(struct hisi_zip_ctx *hisi_zip_ctx) hisi_zip_release_qp(&hisi_zip_ctx->qp_ctx[i]); } -static u16 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 int hisi_zip_create_req_q(struct hisi_zip_ctx *ctx) { struct hisi_zip_req_q *req_q; @@ -336,52 +684,6 @@ static void hisi_zip_release_sgl_pool(struct hisi_zip_ctx *ctx) ctx->qp_ctx[i].sgl_pool); } -static void hisi_zip_remove_req(struct hisi_zip_qp_ctx *qp_ctx, - struct hisi_zip_req *req) -{ - struct hisi_zip_req_q *req_q = &qp_ctx->req_q; - - write_lock(&req_q->req_lock); - clear_bit(req->req_id, req_q->req_bitmap); - memset(req, 0, sizeof(struct hisi_zip_req)); - write_unlock(&req_q->req_lock); -} - -static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data) -{ - struct hisi_zip_sqe *sqe = data; - struct hisi_zip_qp_ctx *qp_ctx = qp->qp_ctx; - struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx; - struct hisi_zip_req_q *req_q = &qp_ctx->req_q; - struct hisi_zip_req *req = req_q->q + sqe->tag; - struct acomp_req *acomp_req = req->req; - struct device *dev = &qp->qm->pdev->dev; - u32 status, dlen, head_size; - int err = 0; - - atomic64_inc(&dfx->recv_cnt); - status = sqe->dw3 & HZIP_BD_STATUS_M; - if (status != 0 && status != HZIP_NC_ERR) { - dev_err(dev, "%scompress fail in qp%u: %u, output: %u\n", - (qp->alg_type == 0) ? "" : "de", qp->qp_id, status, - sqe->produced); - atomic64_inc(&dfx->err_bd_cnt); - err = -EIO; - } - dlen = sqe->produced; - - 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; - - if (acomp_req->base.complete) - acomp_request_complete(acomp_req, err); - - hisi_zip_remove_req(qp_ctx, req); -} - static void hisi_zip_set_acomp_cb(struct hisi_zip_ctx *ctx, void (*fn)(struct hisi_qp *, void *)) { @@ -439,204 +741,6 @@ static void hisi_zip_acomp_exit(struct crypto_acomp *tfm) hisi_zip_ctx_exit(ctx); } -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 (ret != head_size) { - pr_err("the head size of buffer is wrong (%d)!\n", ret); - return -ENOMEM; - } - - return head_size; -} - -static size_t __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 get_comp_head_size(struct acomp_req *acomp_req, u8 req_type) -{ - if (!acomp_req->src || !acomp_req->slen) - return -EINVAL; - - if ((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) -{ - struct hisi_zip_req_q *req_q = &qp_ctx->req_q; - struct hisi_zip_req *q = req_q->q; - struct hisi_zip_req *req_cache; - int req_id; - - write_lock(&req_q->req_lock); - - req_id = find_first_zero_bit(req_q->req_bitmap, req_q->size); - if (req_id >= req_q->size) { - write_unlock(&req_q->req_lock); - dev_dbg(&qp_ctx->qp->qm->pdev->dev, "req cache is full!\n"); - return ERR_PTR(-EAGAIN); - } - set_bit(req_id, req_q->req_bitmap); - - req_cache = q + req_id; - 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; - } - - write_unlock(&req_q->req_lock); - - return req_cache; -} - -static int hisi_zip_do_work(struct hisi_zip_req *req, - struct hisi_zip_qp_ctx *qp_ctx) -{ - struct acomp_req *a_req = req->req; - struct hisi_qp *qp = qp_ctx->qp; - struct device *dev = &qp->qm->pdev->dev; - struct hisi_acc_sgl_pool *pool = qp_ctx->sgl_pool; - struct hisi_zip_dfx *dfx = &qp_ctx->zip_dev->dfx; - struct hisi_zip_sqe zip_sqe; - dma_addr_t input, output; - int ret; - - if (!a_req->src || !a_req->slen || !a_req->dst || !a_req->dlen) - return -EINVAL; - - req->hw_src = hisi_acc_sg_buf_map_to_hw_sgl(dev, a_req->src, pool, - req->req_id << 1, &input); - if (IS_ERR(req->hw_src)) { - dev_err(dev, "failed to map the src buffer to hw sgl (%ld)!\n", - PTR_ERR(req->hw_src)); - return PTR_ERR(req->hw_src); - } - req->dma_src = input; - - req->hw_dst = hisi_acc_sg_buf_map_to_hw_sgl(dev, a_req->dst, pool, - (req->req_id << 1) + 1, - &output); - if (IS_ERR(req->hw_dst)) { - ret = PTR_ERR(req->hw_dst); - dev_err(dev, "failed to map the dst buffer to hw slg (%d)!\n", - ret); - goto err_unmap_input; - } - req->dma_dst = output; - - hisi_zip_fill_sqe(&zip_sqe, qp->req_type, input, output, a_req->slen, - a_req->dlen, req->sskip, req->dskip); - hisi_zip_config_buf_type(&zip_sqe, HZIP_SGL); - hisi_zip_config_tag(&zip_sqe, req->req_id); - - /* send command to start a task */ - atomic64_inc(&dfx->send_cnt); - ret = hisi_qp_send(qp, &zip_sqe); - if (ret < 0) { - atomic64_inc(&dfx->send_busy_cnt); - ret = -EAGAIN; - dev_dbg_ratelimited(dev, "failed to send request!\n"); - goto err_unmap_output; - } - - return -EINPROGRESS; - -err_unmap_output: - hisi_acc_sg_buf_unmap(dev, a_req->dst, req->hw_dst); -err_unmap_input: - hisi_acc_sg_buf_unmap(dev, a_req->src, req->hw_src); - return ret; -} - -static int hisi_zip_acompress(struct acomp_req *acomp_req) -{ - struct hisi_zip_ctx *ctx = crypto_tfm_ctx(acomp_req->base.tfm); - 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; - int ret; - - /* let's output compression head now */ - head_size = add_comp_head(acomp_req->dst, qp_ctx->qp->req_type); - if (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); - if (IS_ERR(req)) - return PTR_ERR(req); - - ret = hisi_zip_do_work(req, qp_ctx); - if (ret != -EINPROGRESS) { - dev_info_ratelimited(dev, "failed to do compress (%d)!\n", ret); - hisi_zip_remove_req(qp_ctx, req); - } - - return ret; -} - -static int hisi_zip_adecompress(struct acomp_req *acomp_req) -{ - struct hisi_zip_ctx *ctx = crypto_tfm_ctx(acomp_req->base.tfm); - 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, ret; - - head_size = get_comp_head_size(acomp_req, qp_ctx->qp->req_type); - if (head_size < 0) { - dev_err_ratelimited(dev, "failed to get comp head size (%d)!\n", - head_size); - return head_size; - } - - req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, false); - if (IS_ERR(req)) - return PTR_ERR(req); - - ret = hisi_zip_do_work(req, qp_ctx); - if (ret != -EINPROGRESS) { - dev_info_ratelimited(dev, "failed to do decompress (%d)!\n", - ret); - hisi_zip_remove_req(qp_ctx, req); - } - - return ret; -} - static struct acomp_alg hisi_zip_acomp_zlib = { .init = hisi_zip_acomp_init, .exit = hisi_zip_acomp_exit, @@ -665,7 +769,7 @@ static struct acomp_alg hisi_zip_acomp_gzip = { } }; -int hisi_zip_register_to_crypto(void) +int hisi_zip_register_to_crypto(struct hisi_qm *qm) { int ret; @@ -684,7 +788,7 @@ int hisi_zip_register_to_crypto(void) return ret; } -void hisi_zip_unregister_from_crypto(void) +void hisi_zip_unregister_from_crypto(struct hisi_qm *qm) { crypto_unregister_acomp(&hisi_zip_acomp_gzip); crypto_unregister_acomp(&hisi_zip_acomp_zlib); |