When the hardware queue resource or memery alloc fail in
initialization of acomp_alg, use soft algorithm to complete
the work.
Signed-off-by: Chenghai Huang <huangchenghai2@xxxxxxxxxx>
---
drivers/crypto/hisilicon/Kconfig | 1 +
drivers/crypto/hisilicon/zip/zip_crypto.c | 54 +++++++++++++++++++----
2 files changed, 47 insertions(+), 8 deletions(-)
diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig
index 4137a8bf131f..0d3e32ba6f61 100644
--- a/drivers/crypto/hisilicon/Kconfig
+++ b/drivers/crypto/hisilicon/Kconfig
@@ -57,6 +57,7 @@ config CRYPTO_DEV_HISI_ZIP
depends on UACCE || UACCE=n
depends on ACPI
select CRYPTO_DEV_HISI_QM
+ select CRYPTO_DEFLATE
help
Support for HiSilicon ZIP Driver
diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c
index b97513981a3b..fc33dfe13de1 100644
--- a/drivers/crypto/hisilicon/zip/zip_crypto.c
+++ b/drivers/crypto/hisilicon/zip/zip_crypto.c
@@ -82,6 +82,7 @@ struct hisi_zip_sqe_ops {
struct hisi_zip_ctx {
struct hisi_zip_qp_ctx qp_ctx[HZIP_CTX_Q_NUM];
const struct hisi_zip_sqe_ops *ops;
+ bool fallback;
};
static int sgl_sge_nr_set(const char *val, const struct kernel_param *kp)
@@ -108,6 +109,29 @@ 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 int hisi_zip_fallback_do_work(struct acomp_req *acomp_req, bool is_decompress)
+{
+ ACOMP_FBREQ_ON_STACK(fbreq, acomp_req);
+ int ret;
+
+ if (!is_decompress)
+ ret = crypto_acomp_compress(fbreq);
+ else
+ ret = crypto_acomp_decompress(fbreq);
+ if (ret) {
+ pr_err("failed to do fallback work, ret=%d\n", ret);
+ goto err_out;
+ }
+
+ acomp_req->dlen = fbreq->dlen;
+
+err_out:
+ if (acomp_req->base.complete)
+ acomp_request_complete(acomp_req, ret);
+
+ return ret;
+}
+
static struct hisi_zip_req *hisi_zip_create_req(struct hisi_zip_qp_ctx *qp_ctx,
struct acomp_req *req)
{
@@ -319,10 +343,15 @@ 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;
+ struct device *dev;
int ret;
+ if (ctx->fallback)
+ return hisi_zip_fallback_do_work(acomp_req, 0);
+
+ dev = &qp_ctx->qp->qm->pdev->dev;
+
req = hisi_zip_create_req(qp_ctx, acomp_req);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -340,10 +369,15 @@ 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;
+ struct device *dev;
int ret;
+ if (ctx->fallback)
+ return hisi_zip_fallback_do_work(acomp_req, 1);
+
+ dev = &qp_ctx->qp->qm->pdev->dev;
+
req = hisi_zip_create_req(qp_ctx, acomp_req);
if (IS_ERR(req))
return PTR_ERR(req);
@@ -549,7 +583,7 @@ static int hisi_zip_acomp_init(struct crypto_acomp *tfm)
ret = hisi_zip_ctx_init(ctx, COMP_NAME_TO_TYPE(alg_name), tfm->base.node);
if (ret) {
pr_err("failed to init ctx (%d)!\n", ret);
- return ret;
+ goto switch_to_soft;
}
dev = &ctx->qp_ctx[0].qp->qm->pdev->dev;
@@ -574,17 +608,21 @@ static int hisi_zip_acomp_init(struct crypto_acomp *tfm)
hisi_zip_release_req_q(ctx);
err_ctx_exit:
hisi_zip_ctx_exit(ctx);
- return ret;
+switch_to_soft:
+ ctx->fallback = true;
+ return 0;
}
static void hisi_zip_acomp_exit(struct crypto_acomp *tfm)
{
struct hisi_zip_ctx *ctx = crypto_tfm_ctx(&tfm->base);
- hisi_zip_set_acomp_cb(ctx, NULL);
- hisi_zip_release_sgl_pool(ctx);
- hisi_zip_release_req_q(ctx);
- hisi_zip_ctx_exit(ctx);
+ if (!ctx->fallback) {
+ hisi_zip_set_acomp_cb(ctx, NULL);
+ hisi_zip_release_sgl_pool(ctx);
+ hisi_zip_release_req_q(ctx);
+ hisi_zip_ctx_exit(ctx);
+ }
}
static struct acomp_alg hisi_zip_acomp_deflate = {
--
2.33.0
