crypto: hisilicon/zip - add comments for 'hisi_zip_sqe'

mainline inclusion
from mainline-v5.13-rc1
commit d7468818
category: feature
bugzilla: 173981
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d746881855ba167597d835de512150b6e6ea19ae

----------------------------------------------------------------------

Some fields of 'hisi_zip_sqe' are unused, and some fields have misc
utilities. So add comments for used fields and make others unnamed.
Signed-off-by: NYang Shen <shenyang39@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NMingqiang Ling <lingmingqiang@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/crypto/hisilicon/zip/zip.h

@@ -33,31 +33,50 @@ struct hisi_zip_sqe {
 	u32 consumed;
 	u32 produced;
 	u32 comp_data_length;
+	/*
+	 * status: 0~7 bits
+	 * rsvd: 8~31 bits
+	 */
 	u32 dw3;
 	u32 input_data_length;
-	u32 lba_l;
-	u32 lba_h;
+	u32 dw5;
+	u32 dw6;
+	/*
+	 * in_sge_data_offset: 0~23 bits
+	 * rsvd: 24~27 bits
+	 * sqe_type: 29~31 bits
+	 */
 	u32 dw7;
+	/*
+	 * out_sge_data_offset: 0~23 bits
+	 * rsvd: 24~31 bits
+	 */
 	u32 dw8;
+	/*
+	 * request_type: 0~7 bits
+	 * buffer_type: 8~11 bits
+	 * rsvd: 13~31 bits
+	 */
 	u32 dw9;
 	u32 dw10;
-	u32 priv_info;
+	u32 dw11;
 	u32 dw12;
-	u32 tag;
+	/* tag: in sqe type 0 */
+	u32 dw13;
 	u32 dest_avail_out;
-	u32 rsvd0;
-	u32 comp_head_addr_l;
-	u32 comp_head_addr_h;
+	u32 dw15;
+	u32 dw16;
+	u32 dw17;
 	u32 source_addr_l;
 	u32 source_addr_h;
 	u32 dest_addr_l;
 	u32 dest_addr_h;
-	u32 stream_ctx_addr_l;
-	u32 stream_ctx_addr_h;
-	u32 cipher_key1_addr_l;
-	u32 cipher_key1_addr_h;
-	u32 cipher_key2_addr_l;
-	u32 cipher_key2_addr_h;
+	u32 dw22;
+	u32 dw23;
+	u32 dw24;
+	u32 dw25;
+	u32 dw26;
+	u32 dw27;
 	u32 rsvd1[4];
 };
 

drivers/crypto/hisilicon/zip/zip_crypto.c

@@ -253,7 +253,7 @@ static void hisi_zip_config_buf_type(struct hisi_zip_sqe *sqe, u8 buf_type)
 
 static void hisi_zip_config_tag(struct hisi_zip_sqe *sqe, u32 tag)
 {
-	sqe->tag = tag;
+	sqe->dw13 = tag;
 }
 
 static void hisi_zip_fill_sqe(struct hisi_zip_sqe *sqe, u8 req_type,
@@ -339,7 +339,7 @@ static void hisi_zip_acomp_cb(struct hisi_qp *qp, void *data)
 	struct hisi_zip_req_q *req_q = &qp_ctx->req_q;
 	struct device *dev = &qp->qm->pdev->dev;
 	struct hisi_zip_sqe *sqe = data;
-	struct hisi_zip_req *req = req_q->q + sqe->tag;
+	struct hisi_zip_req *req = req_q->q + sqe->dw13;
 	struct acomp_req *acomp_req = req->req;
 	u32 status, dlen, head_size;
 	int err = 0;