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crypto: hisilicon/zip - add debugfs for Hisilicon ZIP

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Hisilicon ZIP engine driver uses debugfs
to provides IO operation debug information

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Shukun Tan <tanshukun1@huawei.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Longfang Liu 2020-05-15 17:13:58 +08:00 committed by Herbert Xu
parent 64a6301ebe
commit 6621e6492f
4 changed files with 96 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
Documentation/ABI/testing/debugfs-hisi-zip
View File

@ -86,3 +86,29 @@ Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
Four states: initiated, started, stopped and closed.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of sent requests.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of received requests.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of requests received
with returning busy.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of BD type error requests
to be received.
Available for both PF and VF, and take no other effect on ZIP.

8
drivers/crypto/hisilicon/zip/zip.h
View File

@ -28,12 +28,20 @@ enum hisi_zip_error_type {
HZIP_NC_ERR = 0x0d,
};
struct hisi_zip_dfx {
atomic64_t send_cnt;
atomic64_t recv_cnt;
atomic64_t send_busy_cnt;
atomic64_t err_bd_cnt;
};
struct hisi_zip_ctrl;
struct hisi_zip {
struct hisi_qm qm;
struct list_head list;
struct hisi_zip_ctrl *ctrl;
struct hisi_zip_dfx dfx;
};
struct hisi_zip_sqe {

9
drivers/crypto/hisilicon/zip/zip_crypto.c
View File

@ -332,6 +332,7 @@ 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;
@ -339,12 +340,14 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data)
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;
@ -487,6 +490,7 @@ static int hisi_zip_do_work(struct hisi_zip_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;
dma_addr_t output;
@ -516,9 +520,12 @@ static int hisi_zip_do_work(struct hisi_zip_req *req,
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)
if (ret < 0) {
atomic64_inc(&dfx->send_busy_cnt);
goto err_unmap_output;
}
return -EINPROGRESS;

54
drivers/crypto/hisilicon/zip/zip_main.c
View File

@ -99,6 +99,18 @@ struct hisi_zip_hw_error {
const char *msg;
};
struct zip_dfx_item {
const char *name;
u32 offset;
};
static struct zip_dfx_item zip_dfx_files[] = {
{"send_cnt", offsetof(struct hisi_zip_dfx, send_cnt)},
{"recv_cnt", offsetof(struct hisi_zip_dfx, recv_cnt)},
{"send_busy_cnt", offsetof(struct hisi_zip_dfx, send_busy_cnt)},
{"err_bd_cnt", offsetof(struct hisi_zip_dfx, err_bd_cnt)},
};
static const struct hisi_zip_hw_error zip_hw_error[] = {
{ .int_msk = BIT(0), .msg = "zip_ecc_1bitt_err" },
{ .int_msk = BIT(1), .msg = "zip_ecc_2bit_err" },
@ -469,6 +481,27 @@ static const struct file_operations ctrl_debug_fops = {
.write = ctrl_debug_write,
};
static int zip_debugfs_atomic64_set(void *data, u64 val)
{
if (val)
return -EINVAL;
atomic64_set((atomic64_t *)data, 0);
return 0;
}
static int zip_debugfs_atomic64_get(void *data, u64 *val)
{
*val = atomic64_read((atomic64_t *)data);
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(zip_atomic64_ops, zip_debugfs_atomic64_get,
zip_debugfs_atomic64_set, "%llu\n");
static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
{
struct hisi_zip *hisi_zip = ctrl->hisi_zip;
@ -500,6 +533,25 @@ static int hisi_zip_core_debug_init(struct hisi_zip_ctrl *ctrl)
return 0;
}
static void hisi_zip_dfx_debug_init(struct hisi_qm *qm)
{
struct hisi_zip *zip = container_of(qm, struct hisi_zip, qm);
struct hisi_zip_dfx *dfx = &zip->dfx;
struct dentry *tmp_dir;
void *data;
int i;
tmp_dir = debugfs_create_dir("zip_dfx", qm->debug.debug_root);
for (i = 0; i < ARRAY_SIZE(zip_dfx_files); i++) {
data = (atomic64_t *)((uintptr_t)dfx + zip_dfx_files[i].offset);
debugfs_create_file(zip_dfx_files[i].name,
0644,
tmp_dir,
data,
&zip_atomic64_ops);
}
}
static int hisi_zip_ctrl_debug_init(struct hisi_zip_ctrl *ctrl)
{
int i;
@ -538,6 +590,8 @@ static int hisi_zip_debugfs_init(struct hisi_zip *hisi_zip)
goto failed_to_create;
}
hisi_zip_dfx_debug_init(qm);
return 0;
failed_to_create: